cavegen.cpp
clientiface.cpp
collision.cpp
- connection.cpp
content_abm.cpp
content_mapnode.cpp
content_nodemeta.cpp
version.cpp
voxel.cpp
voxelalgorithms.cpp
+ network/connection.cpp
network/networkpacket.cpp
+ network/packethandlers/server.cpp
network/serveropcodes.cpp
- network/toserverpacket.cpp
${JTHREAD_SRCS}
${common_SCRIPT_SRCS}
${UTIL_SRCS}
wieldmesh.cpp
client/clientlauncher.cpp
network/clientopcodes.cpp
- network/toclientpacket.cpp
+ network/packethandlers/client.cpp
${minetest_SCRIPT_SRCS}
)
list(SORT minetest_SRCS)
#include "util/pointedthing.h"
#include "util/serialize.h"
#include "util/string.h"
-#include "strfnd.h"
#include "client.h"
#include "network/clientopcodes.h"
#include "main.h"
#include "filesys.h"
#include "porting.h"
-#include "mapsector.h"
#include "mapblock_mesh.h"
#include "mapblock.h"
#include "settings.h"
#include "gettext.h"
#include "log.h"
#include "nodemetadata.h"
-#include "nodedef.h"
#include "itemdef.h"
#include "shader.h"
-#include "base64.h"
#include "clientmap.h"
#include "clientmedia.h"
#include "sound.h"
#include "IMeshCache.h"
-#include "serialization.h"
#include "config.h"
#include "version.h"
#include "drawscene.h"
}
}
-#if 0
- {
- /*
- Delete unused sectors
-
- NOTE: This jams the game for a while because deleting sectors
- clear caches
- */
-
- float &counter = m_delete_unused_sectors_timer;
- counter -= dtime;
- if(counter <= 0.0)
- {
- // 3 minute interval
- //counter = 180.0;
- counter = 60.0;
-
- //JMutexAutoLock lock(m_env_mutex); //bulk comment-out
-
- core::list<v3s16> deleted_blocks;
-
- float delete_unused_sectors_timeout =
- g_settings->getFloat("client_delete_unused_sectors_timeout");
-
- // Delete sector blocks
- /*u32 num = m_env.getMap().unloadUnusedData
- (delete_unused_sectors_timeout,
- true, &deleted_blocks);*/
-
- // Delete whole sectors
- m_env.getMap().unloadUnusedData
- (delete_unused_sectors_timeout,
- &deleted_blocks);
-
- if(deleted_blocks.size() > 0)
- {
- /*infostream<<"Client: Deleted blocks of "<<num
- <<" unused sectors"<<std::endl;*/
- /*infostream<<"Client: Deleted "<<num
- <<" unused sectors"<<std::endl;*/
-
- /*
- Send info to server
- */
-
- // Env is locked so con can be locked.
- //JMutexAutoLock lock(m_con_mutex); //bulk comment-out
-
- core::list<v3s16>::Iterator i = deleted_blocks.begin();
- core::list<v3s16> sendlist;
- for(;;)
- {
- if(sendlist.size() == 255 || i == deleted_blocks.end())
- {
- if(sendlist.size() == 0)
- break;
- /*
- [0] u16 command
- [2] u8 count
- [3] v3s16 pos_0
- [3+6] v3s16 pos_1
- ...
- */
- u32 replysize = 2+1+6*sendlist.size();
- SharedBuffer<u8> reply(replysize);
- writeU16(&reply[0], TOSERVER_DELETEDBLOCKS);
- reply[2] = sendlist.size();
- u32 k = 0;
- for(core::list<v3s16>::Iterator
- j = sendlist.begin();
- j != sendlist.end(); j++)
- {
- writeV3S16(&reply[2+1+6*k], *j);
- k++;
- }
- m_con.Send(PEER_ID_SERVER, 1, reply, true);
-
- if(i == deleted_blocks.end())
- break;
-
- sendlist.clear();
- }
-
- sendlist.push_back(*i);
- i++;
- }
- }
- }
- }
-#endif
// UGLY hack to fix 2 second startup delay caused by non existent
// server client startup synchronization in local server or singleplayer mode
static bool initial_step = true;
if (initial_step) {
initial_step = false;
}
- else if(m_state == LC_Created)
- {
+ else if(m_state == LC_Created) {
float &counter = m_connection_reinit_timer;
counter -= dtime;
- if(counter <= 0.0)
- {
+ if(counter <= 0.0) {
counter = 2.0;
- //JMutexAutoLock envlock(m_env_mutex); //bulk comment-out
-
Player *myplayer = m_env.getLocalPlayer();
assert(myplayer != NULL);
// Send TOSERVER_INIT
// [23] u8[28] password (new in some version)
// [51] u16 minimum supported network protocol version (added sometime)
// [53] u16 maximum supported network protocol version (added later than the previous one)
- SharedBuffer<u8> data(2+1+PLAYERNAME_SIZE+PASSWORD_SIZE+2+2);
+
+ char pName[PLAYERNAME_SIZE];
+ char pPassword[PASSWORD_SIZE];
+
+ snprintf(pName, PLAYERNAME_SIZE, "%s", myplayer->getName());
+ snprintf(pPassword, PASSWORD_SIZE, "%s", m_password.c_str());
+
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_INIT,
+ 1 + PLAYERNAME_SIZE + PASSWORD_SIZE + 2 + 2);
+
+ *pkt << (u8) SER_FMT_VER_HIGHEST_READ;
+ pkt->putRawString(pName,PLAYERNAME_SIZE);
+ pkt->putRawString(pPassword, PASSWORD_SIZE);
+ *pkt << (u16) CLIENT_PROTOCOL_VERSION_MIN << (u16) CLIENT_PROTOCOL_VERSION_MAX;
+
+ Send(pkt);
+
+ /*SharedBuffer<u8> data(2 + 1 + PLAYERNAME_SIZE + PASSWORD_SIZE + 2 + 2);
writeU16(&data[0], TOSERVER_INIT);
writeU8(&data[2], SER_FMT_VER_HIGHEST_READ);
memset((char*)&data[3], 0, PLAYERNAME_SIZE);
snprintf((char*)&data[3], PLAYERNAME_SIZE, "%s", myplayer->getName());
- /*infostream<<"Client: sending initial password hash: \""<<m_password<<"\""
- <<std::endl;*/
-
memset((char*)&data[23], 0, PASSWORD_SIZE);
snprintf((char*)&data[23], PASSWORD_SIZE, "%s", m_password.c_str());
writeU16(&data[53], CLIENT_PROTOCOL_VERSION_MAX);
// Send as unreliable
- Send(1, data, false);
+ Send(1, data, false);*/
}
// Not connected, return
Run Map's timers and unload unused data
*/
const float map_timer_and_unload_dtime = 5.25;
- if(m_map_timer_and_unload_interval.step(dtime, map_timer_and_unload_dtime))
- {
+ if(m_map_timer_and_unload_interval.step(dtime, map_timer_and_unload_dtime)) {
ScopeProfiler sp(g_profiler, "Client: map timer and unload");
std::list<v3s16> deleted_blocks;
m_env.getMap().timerUpdate(map_timer_and_unload_dtime,
g_settings->getFloat("client_unload_unused_data_timeout"),
&deleted_blocks);
- /*if(deleted_blocks.size() > 0)
- infostream<<"Client: Unloaded "<<deleted_blocks.size()
- <<" unused blocks"<<std::endl;*/
-
/*
Send info to server
NOTE: This loop is intentionally iterated the way it is.
std::list<v3s16>::iterator i = deleted_blocks.begin();
std::list<v3s16> sendlist;
- for(;;)
- {
- if(sendlist.size() == 255 || i == deleted_blocks.end())
- {
+ for(;;) {
+ if(sendlist.size() == 255 || i == deleted_blocks.end()) {
if(sendlist.empty())
break;
/*
[3+6] v3s16 pos_1
...
*/
- u32 replysize = 2+1+6*sendlist.size();
- SharedBuffer<u8> reply(replysize);
- writeU16(&reply[0], TOSERVER_DELETEDBLOCKS);
- reply[2] = sendlist.size();
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_DELETEDBLOCKS, 1 + sizeof(v3s16) * sendlist.size());
+
+ *pkt << (u8) sendlist.size();
+
u32 k = 0;
for(std::list<v3s16>::iterator
j = sendlist.begin();
- j != sendlist.end(); ++j)
- {
- writeV3S16(&reply[2+1+6*k], *j);
+ j != sendlist.end(); ++j) {
+ *pkt << *j;
k++;
}
- m_con.Send(PEER_ID_SERVER, 2, reply, true);
+
+ Send(pkt);
if(i == deleted_blocks.end())
break;
/*
Handle environment
*/
- {
- // Control local player (0ms)
- LocalPlayer *player = m_env.getLocalPlayer();
- assert(player != NULL);
- player->applyControl(dtime);
-
- // Step environment
- m_env.step(dtime);
-
- /*
- Get events
- */
- for(;;)
- {
- ClientEnvEvent event = m_env.getClientEvent();
- if(event.type == CEE_NONE)
- {
- break;
- }
- else if(event.type == CEE_PLAYER_DAMAGE)
- {
- if(m_ignore_damage_timer <= 0)
- {
- u8 damage = event.player_damage.amount;
+ // Control local player (0ms)
+ LocalPlayer *player = m_env.getLocalPlayer();
+ assert(player != NULL);
+ player->applyControl(dtime);
- if(event.player_damage.send_to_server)
- sendDamage(damage);
+ // Step environment
+ m_env.step(dtime);
- // Add to ClientEvent queue
- ClientEvent event;
- event.type = CE_PLAYER_DAMAGE;
- event.player_damage.amount = damage;
- m_client_event_queue.push_back(event);
- }
- }
- else if(event.type == CEE_PLAYER_BREATH)
- {
- u16 breath = event.player_breath.amount;
- sendBreath(breath);
+ /*
+ Get events
+ */
+ for(;;) {
+ ClientEnvEvent event = m_env.getClientEvent();
+ if(event.type == CEE_NONE) {
+ break;
+ }
+ else if(event.type == CEE_PLAYER_DAMAGE) {
+ if(m_ignore_damage_timer <= 0) {
+ u8 damage = event.player_damage.amount;
+
+ if(event.player_damage.send_to_server)
+ sendDamage(damage);
+
+ // Add to ClientEvent queue
+ ClientEvent event;
+ event.type = CE_PLAYER_DAMAGE;
+ event.player_damage.amount = damage;
+ m_client_event_queue.push_back(event);
}
}
+ else if(event.type == CEE_PLAYER_BREATH) {
+ u16 breath = event.player_breath.amount;
+ sendBreath(breath);
+ }
}
/*
Print some info
*/
- {
- float &counter = m_avg_rtt_timer;
- counter += dtime;
- if(counter >= 10)
- {
- counter = 0.0;
- // connectedAndInitialized() is true, peer exists.
- float avg_rtt = getRTT();
- infostream<<"Client: avg_rtt="<<avg_rtt<<std::endl;
- }
+ float &counter = m_avg_rtt_timer;
+ counter += dtime;
+ if(counter >= 10) {
+ counter = 0.0;
+ // connectedAndInitialized() is true, peer exists.
+ float avg_rtt = getRTT();
+ infostream << "Client: avg_rtt=" << avg_rtt << std::endl;
}
/*
num_processed_meshes++;
MeshUpdateResult r = m_mesh_update_thread.m_queue_out.pop_frontNoEx();
MapBlock *block = m_env.getMap().getBlockNoCreateNoEx(r.p);
- if(block)
- {
+ if(block) {
// Delete the old mesh
if(block->mesh != NULL)
{
} else {
delete r.mesh;
}
- if(r.ack_block_to_server)
- {
+
+ if(r.ack_block_to_server) {
/*
Acknowledge block
+ [0] u8 count
+ [1] v3s16 pos_0
*/
- /*
- [0] u16 command
- [2] u8 count
- [3] v3s16 pos_0
- [3+6] v3s16 pos_1
- ...
- */
- u32 replysize = 2+1+6;
- SharedBuffer<u8> reply(replysize);
- writeU16(&reply[0], TOSERVER_GOTBLOCKS);
- reply[2] = 1;
- writeV3S16(&reply[3], r.p);
- // Send as reliable
- m_con.Send(PEER_ID_SERVER, 2, reply, true);
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_GOTBLOCKS, 1 + 6);
+ *pkt << (u8) 1 << r.p;
+ Send(pkt);
}
}
+
if(num_processed_meshes > 0)
g_profiler->graphAdd("num_processed_meshes", num_processed_meshes);
}
Handle removed remotely initiated sounds
*/
m_removed_sounds_check_timer += dtime;
- if(m_removed_sounds_check_timer >= 2.32)
- {
+ if(m_removed_sounds_check_timer >= 2.32) {
m_removed_sounds_check_timer = 0;
// Find removed sounds and clear references to them
std::set<s32> removed_server_ids;
for(std::map<s32, int>::iterator
i = m_sounds_server_to_client.begin();
- i != m_sounds_server_to_client.end();)
- {
+ i != m_sounds_server_to_client.end();) {
s32 server_id = i->first;
int client_id = i->second;
i++;
- if(!m_sound->soundExists(client_id)){
+ if(!m_sound->soundExists(client_id)) {
m_sounds_server_to_client.erase(server_id);
m_sounds_client_to_server.erase(client_id);
m_sounds_to_objects.erase(client_id);
removed_server_ids.insert(server_id);
}
}
+
// Sync to server
- if(!removed_server_ids.empty())
- {
- std::ostringstream os(std::ios_base::binary);
- writeU16(os, TOSERVER_REMOVED_SOUNDS);
+ if(!removed_server_ids.empty()) {
size_t server_ids = removed_server_ids.size();
assert(server_ids <= 0xFFFF);
- writeU16(os, (u16) (server_ids & 0xFFFF));
+
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_REMOVED_SOUNDS, 2 + server_ids * 4);
+
+ *pkt << (u16) (server_ids & 0xFFFF);
+
for(std::set<s32>::iterator i = removed_server_ids.begin();
i != removed_server_ids.end(); i++)
- writeS32(os, *i);
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- Send(1, data, true);
+ *pkt << *i;
+
+ Send(pkt);
}
}
}
writeU16(os, TOSERVER_REQUEST_MEDIA);
size_t file_requests_size = file_requests.size();
assert(file_requests_size <= 0xFFFF);
- writeU16(os, (u16) (file_requests_size & 0xFFFF));
+
+ // Packet dynamicly resized
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_REQUEST_MEDIA, 2 + 0);
+
+ *pkt << (u16) (file_requests_size & 0xFFFF);
for(std::list<std::string>::const_iterator i = file_requests.begin();
i != file_requests.end(); ++i) {
- os<<serializeString(*i);
+ *pkt << (*i);
}
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- Send(1, data, true);
+ Send(pkt);
+
infostream<<"Client: Sending media request list to server ("
- <<file_requests.size()<<" files)"<<std::endl;
+ <<file_requests.size()<<" files. packet size)"<<std::endl;
}
void Client::received_media()
{
- // notify server we received everything
- std::ostringstream os(std::ios_base::binary);
- writeU16(os, TOSERVER_RECEIVED_MEDIA);
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- Send(1, data, true);
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_RECEIVED_MEDIA, 0);
+ Send(pkt);
infostream<<"Client: Notifying server that we received all media"
<<std::endl;
}
if(porting::getTimeMs() > start_ms + 100)
break;
- try{
+ try {
Receive();
g_profiler->graphAdd("client_received_packets", 1);
}
- catch(con::NoIncomingDataException &e)
- {
+ catch(con::NoIncomingDataException &e) {
break;
}
- catch(con::InvalidIncomingDataException &e)
- {
+ catch(con::InvalidIncomingDataException &e) {
infostream<<"Client::ReceiveAll(): "
"InvalidIncomingDataException: what()="
<<e.what()<<std::endl;
ProcessData(*data, datasize, sender_peer_id);
}
-void Client::handleCommand_Deprecated(ToClientPacket* pkt)
-{
- infostream << "Got deprecated command "
- << toClientCommandTable[pkt->getCommand()].name << " from peer "
- << pkt->getPeerId() << "!" << std::endl;
-}
-
-void Client::handleCommand_Init(ToClientPacket* pkt)
-{
- if(pkt->getSize() < 1)
- return;
-
- u8 deployed;
- *pkt >> deployed;
-
- infostream << "Client: TOCLIENT_INIT received with "
- "deployed=" << ((int)deployed & 0xff) << std::endl;
-
- if(!ser_ver_supported(deployed)) {
- infostream << "Client: TOCLIENT_INIT: Server sent "
- << "unsupported ser_fmt_ver"<< std::endl;
- return;
- }
-
- m_server_ser_ver = deployed;
-
- // Get player position
- v3s16 playerpos_s16(0, BS * 2 + BS * 20, 0);
- if(pkt->getSize() >= 1 + 6) {
- *pkt >> playerpos_s16;
- }
- v3f playerpos_f = intToFloat(playerpos_s16, BS) - v3f(0, BS / 2, 0);
-
-
- // Set player position
- Player *player = m_env.getLocalPlayer();
- assert(player != NULL);
- player->setPosition(playerpos_f);
-
- if(pkt->getSize() >= 1 + 6 + 8) {
- // Get map seed
- *pkt >> m_map_seed;
- infostream << "Client: received map seed: " << m_map_seed << std::endl;
- }
-
- if(pkt->getSize() >= 1 + 6 + 8 + 4) {
- *pkt >> m_recommended_send_interval;
- infostream << "Client: received recommended send interval "
- << m_recommended_send_interval<<std::endl;
- }
-
- // Reply to server
- u32 replysize = 2;
- SharedBuffer<u8> reply(replysize);
- writeU16(&reply[0], TOSERVER_INIT2);
- // Send as reliable
- m_con.Send(PEER_ID_SERVER, 1, reply, true);
-
- m_state = LC_Init;
-}
-
-void Client::handleCommand_AccessDenied(ToClientPacket* pkt)
-{
- // The server didn't like our password. Note, this needs
- // to be processed even if the serialisation format has
- // not been agreed yet, the same as TOCLIENT_INIT.
- m_access_denied = true;
- m_access_denied_reason = L"Unknown";
- if(pkt->getSize() >= 2) {
- *pkt >> m_access_denied_reason;
- }
-}
-
-void Client::handleCommand_RemoveNode(ToClientPacket* pkt)
-{
- if(pkt->getSize() < 6)
- return;
-
- v3s16 p;
- *pkt >> p.X;
- *pkt >> p.Y;
- *pkt >> p.Z;
- removeNode(p);
-}
-
-void Client::handleCommand_AddNode(ToClientPacket* pkt)
-{
- if(pkt->getSize() < 6 + MapNode::serializedLength(m_server_ser_ver))
- return;
-
- v3s16 p;
- *pkt >> p.X;
- *pkt >> p.Y;
- *pkt >> p.Z;
-
- MapNode n;
- n.deSerialize(pkt->getU8Ptr(6), m_server_ser_ver);
-
- bool remove_metadata = true;
- u32 index = 6 + MapNode::serializedLength(m_server_ser_ver);
- if ((pkt->getSize() >= index + 1) && pkt->getU8(index)) {
- remove_metadata = false;
- }
-
- addNode(p, n, remove_metadata);
-}
-void Client::handleCommand_BlockData(ToClientPacket* pkt)
-{
- // Ignore too small packet
- if(pkt->getSize() < 6)
- return;
-
- v3s16 p;
- *pkt >> p.X;
- *pkt >> p.Y;
- *pkt >> p.Z;
-
- std::string datastring(pkt->getString(6), pkt->getSize() - 6);
- std::istringstream istr(datastring, std::ios_base::binary);
-
- MapSector *sector;
- MapBlock *block;
-
- v2s16 p2d(p.X, p.Z);
- sector = m_env.getMap().emergeSector(p2d);
-
- assert(sector->getPos() == p2d);
-
- block = sector->getBlockNoCreateNoEx(p.Y);
- if(block) {
- /*
- Update an existing block
- */
- block->deSerialize(istr, m_server_ser_ver, false);
- block->deSerializeNetworkSpecific(istr);
- }
- else {
- /*
- Create a new block
- */
- block = new MapBlock(&m_env.getMap(), p, this);
- block->deSerialize(istr, m_server_ser_ver, false);
- block->deSerializeNetworkSpecific(istr);
- sector->insertBlock(block);
- }
-
- if (localdb != NULL) {
- ((ServerMap&) localserver->getMap()).saveBlock(block, localdb);
- }
-
- /*
- Add it to mesh update queue and set it to be acknowledged after update.
- */
- addUpdateMeshTaskWithEdge(p, true);
-}
-
-void Client::handleCommand_Inventory(ToClientPacket* pkt)
-{
- if(pkt->getSize() < 1)
- return;
-
- std::string datastring(pkt->getString(0), pkt->getSize());
- std::istringstream is(datastring, std::ios_base::binary);
-
- Player *player = m_env.getLocalPlayer();
- assert(player != NULL);
-
- player->inventory.deSerialize(is);
-
- m_inventory_updated = true;
-
- delete m_inventory_from_server;
- m_inventory_from_server = new Inventory(player->inventory);
- m_inventory_from_server_age = 0.0;
-}
-
-void Client::handleCommand_TimeOfDay(ToClientPacket* pkt)
-{
- if(pkt->getSize() < 2)
- return;
-
- u16 time_of_day;
-
- *pkt >> time_of_day;
-
- time_of_day = time_of_day % 24000;
- float time_speed = 0;
-
- if(pkt->getSize() >= 2 + 4) {
- *pkt >> time_speed;
- }
- else {
- // Old message; try to approximate speed of time by ourselves
- float time_of_day_f = (float)time_of_day / 24000.0;
- float tod_diff_f = 0;
-
- if(time_of_day_f < 0.2 && m_last_time_of_day_f > 0.8)
- tod_diff_f = time_of_day_f - m_last_time_of_day_f + 1.0;
- else
- tod_diff_f = time_of_day_f - m_last_time_of_day_f;
-
- m_last_time_of_day_f = time_of_day_f;
- float time_diff = m_time_of_day_update_timer;
- m_time_of_day_update_timer = 0;
-
- if(m_time_of_day_set){
- time_speed = (3600.0 * 24.0) * tod_diff_f / time_diff;
- infostream << "Client: Measured time_of_day speed (old format): "
- << time_speed << " tod_diff_f=" << tod_diff_f
- << " time_diff=" << time_diff << std::endl;
- }
- }
-
- // Update environment
- m_env.setTimeOfDay(time_of_day);
- m_env.setTimeOfDaySpeed(time_speed);
- m_time_of_day_set = true;
-
- u32 dr = m_env.getDayNightRatio();
- infostream << "Client: time_of_day=" << time_of_day
- << " time_speed=" << time_speed
- << " dr=" << dr << std::endl;
-}
-
-void Client::handleCommand_ChatMessage(ToClientPacket* pkt)
-{
- /*
- u16 command
- u16 length
- wstring message
- */
- u16 len, read_wchar;
-
- *pkt >> len;
-
- std::wstring message;
- for(unsigned int i=0; i<len; i++) {
- *pkt >> read_wchar;
- message += (wchar_t)read_wchar;
- }
-
- m_chat_queue.push_back(message);
-}
-
-void Client::handleCommand_ActiveObjectRemoveAdd(ToClientPacket* pkt)
-{
- /*
- u16 command
- u16 count of removed objects
- for all removed objects {
- u16 id
- }
- u16 count of added objects
- for all added objects {
- u16 id
- u8 type
- u32 initialization data length
- string initialization data
- }
- */
-
- // Read removed objects
- u8 type;
- u16 removed_count, added_count, id;
-
- *pkt >> removed_count;
-
- for(u16 i=0; i<removed_count; i++) {
- *pkt >> id;
- m_env.removeActiveObject(id);
- }
-
- // Read added objects
- *pkt >> added_count;
-
- for(u16 i=0; i<added_count; i++) {
- *pkt >> id >> type;
- m_env.addActiveObject(id, type, pkt->readLongString());
- }
-}
-
-void Client::handleCommand_ActiveObjectMessages(ToClientPacket* pkt)
-{
- /*
- u16 command
- for all objects
- {
- u16 id
- u16 message length
- string message
- }
- */
- char buf[6];
- // Get all data except the command number
- std::string datastring(pkt->getString(0), pkt->getSize());
- // Throw them in an istringstream
- std::istringstream is(datastring, std::ios_base::binary);
-
- while(is.eof() == false) {
- is.read(buf, 2);
- u16 id = readU16((u8*)buf);
- if(is.eof())
- break;
- is.read(buf, 2);
- size_t message_size = readU16((u8*)buf);
- std::string message;
- message.reserve(message_size);
- for(unsigned int i=0; i<message_size; i++)
- {
- is.read(buf, 1);
- message.append(buf, 1);
- }
- // Pass on to the environment
- m_env.processActiveObjectMessage(id, message);
- }
-}
-
-void Client::handleCommand_Movement(ToClientPacket* pkt)
-{
- Player *player = m_env.getLocalPlayer();
- assert(player != NULL);
-
- float mad, maa, maf, msw, mscr, msf, mscl, msj, lf, lfs, ls, g;
-
- *pkt >> mad >> maa >> maf >> msw >> mscr >> msf >> mscl >> msj
- >> lf >> lfs >> ls >> g;
-
- player->movement_acceleration_default = mad * BS;
- player->movement_acceleration_air = maa * BS;
- player->movement_acceleration_fast = maf * BS;
- player->movement_speed_walk = msw * BS;
- player->movement_speed_crouch = mscr * BS;
- player->movement_speed_fast = msf * BS;
- player->movement_speed_climb = mscl * BS;
- player->movement_speed_jump = msj * BS;
- player->movement_liquid_fluidity = lf * BS;
- player->movement_liquid_fluidity_smooth = lfs * BS;
- player->movement_liquid_sink = ls * BS;
- player->movement_gravity = g * BS;
-}
-
-void Client::handleCommand_HP(ToClientPacket* pkt)
-{
-
- Player *player = m_env.getLocalPlayer();
- assert(player != NULL);
-
- u8 oldhp = player->hp;
-
- u8 hp;
- *pkt >> hp;
-
- player->hp = hp;
-
- if(hp < oldhp) {
- // Add to ClientEvent queue
- ClientEvent event;
- event.type = CE_PLAYER_DAMAGE;
- event.player_damage.amount = oldhp - hp;
- m_client_event_queue.push_back(event);
- }
-}
-
-void Client::handleCommand_Breath(ToClientPacket* pkt)
-{
- Player *player = m_env.getLocalPlayer();
- assert(player != NULL);
-
- u16 breath;
-
- *pkt >> breath;
-
- player->setBreath(breath);
-}
-
-void Client::handleCommand_MovePlayer(ToClientPacket* pkt)
-{
- Player *player = m_env.getLocalPlayer();
- assert(player != NULL);
-
- v3f pos;
- f32 pitch, yaw;
-
- *pkt >> pos >> pitch >> yaw;
-
- player->setPosition(pos);
-
- infostream << "Client got TOCLIENT_MOVE_PLAYER"
- << " pos=(" << pos.X << "," << pos.Y << "," << pos.Z << ")"
- << " pitch=" << pitch
- << " yaw=" << yaw
- << std::endl;
-
- /*
- Add to ClientEvent queue.
- This has to be sent to the main program because otherwise
- it would just force the pitch and yaw values to whatever
- the camera points to.
- */
- ClientEvent event;
- event.type = CE_PLAYER_FORCE_MOVE;
- event.player_force_move.pitch = pitch;
- event.player_force_move.yaw = yaw;
- m_client_event_queue.push_back(event);
-
- // Ignore damage for a few seconds, so that the player doesn't
- // get damage from falling on ground
- m_ignore_damage_timer = 3.0;
-}
-
-void Client::handleCommand_PlayerItem(ToClientPacket* pkt)
-{
- infostream << "Client: WARNING: Ignoring TOCLIENT_PLAYERITEM" << std::endl;
-}
-
-void Client::handleCommand_DeathScreen(ToClientPacket* pkt)
-{
- bool set_camera_point_target;
- v3f camera_point_target;
-
- *pkt >> set_camera_point_target;
- *pkt >> camera_point_target;
-
- ClientEvent event;
- event.type = CE_DEATHSCREEN;
- event.deathscreen.set_camera_point_target = set_camera_point_target;
- event.deathscreen.camera_point_target_x = camera_point_target.X;
- event.deathscreen.camera_point_target_y = camera_point_target.Y;
- event.deathscreen.camera_point_target_z = camera_point_target.Z;
- m_client_event_queue.push_back(event);
-}
-
-void Client::handleCommand_AnnounceMedia(ToClientPacket* pkt)
-{
- u16 num_files;
-
- *pkt >> num_files;
-
- infostream << "Client: Received media announcement: packet size: "
- << pkt->getSize() << std::endl;
-
- if (m_media_downloader == NULL ||
- m_media_downloader->isStarted()) {
- const char *problem = m_media_downloader ?
- "we already saw another announcement" :
- "all media has been received already";
- errorstream << "Client: Received media announcement but "
- << problem << "! "
- << " files=" << num_files
- << " size=" << pkt->getSize() << std::endl;
- return;
- }
-
- // Mesh update thread must be stopped while
- // updating content definitions
- assert(!m_mesh_update_thread.IsRunning());
-
- for(int i=0; i<num_files; i++) {
- std::string name, sha1_base64;
-
- *pkt >> name >> sha1_base64;
-
- std::string sha1_raw = base64_decode(sha1_base64);
- m_media_downloader->addFile(name, sha1_raw);
- }
-
- std::vector<std::string> remote_media;
- try {
- std::string str;
-
- *pkt >> str;
-
- Strfnd sf(str);
- while(!sf.atend()) {
- std::string baseurl = trim(sf.next(","));
- if(baseurl != "")
- m_media_downloader->addRemoteServer(baseurl);
- }
- }
- catch(SerializationError& e) {
- // not supported by server or turned off
- }
-
- m_media_downloader->step(this);
-}
-
-void Client::handleCommand_Media(ToClientPacket* pkt)
-{
- /*
- u16 command
- u16 total number of file bunches
- u16 index of this bunch
- u32 number of files in this bunch
- for each file {
- u16 length of name
- string name
- u32 length of data
- data
- }
- */
- u16 num_bunches;
- u16 bunch_i;
- u32 num_files;
-
- *pkt >> num_bunches >> bunch_i >> num_files;
-
- infostream << "Client: Received files: bunch " << bunch_i << "/"
- << num_bunches << " files=" << num_files
- << " size=" << pkt->getSize() << std::endl;
-
- if (num_files == 0)
- return;
-
- if (m_media_downloader == NULL ||
- !m_media_downloader->isStarted()) {
- const char *problem = m_media_downloader ?
- "media has not been requested" :
- "all media has been received already";
- errorstream << "Client: Received media but "
- << problem << "! "
- << " bunch " << bunch_i << "/" << num_bunches
- << " files=" << num_files
- << " size=" << pkt->getSize() << std::endl;
- return;
- }
-
- // Mesh update thread must be stopped while
- // updating content definitions
- assert(!m_mesh_update_thread.IsRunning());
-
- for(unsigned int i=0; i<num_files; i++) {
- std::string name;
-
- *pkt >> name;
-
- std::string data = pkt->readLongString();
-
- m_media_downloader->conventionalTransferDone(
- name, data, this);
- }
-}
-
-void Client::handleCommand_ToolDef(ToClientPacket* pkt)
-{
- infostream << "Client: WARNING: Ignoring TOCLIENT_TOOLDEF" << std::endl;
-}
-
-void Client::handleCommand_NodeDef(ToClientPacket* pkt)
-{
- infostream << "Client: Received node definitions: packet size: "
- << pkt->getSize() << std::endl;
-
- // Mesh update thread must be stopped while
- // updating content definitions
- assert(!m_mesh_update_thread.IsRunning());
-
- // Decompress node definitions
- std::string datastring(pkt->getString(0), pkt->getSize());
- std::istringstream is(datastring, std::ios_base::binary);
- std::istringstream tmp_is(deSerializeLongString(is), std::ios::binary);
- std::ostringstream tmp_os;
- decompressZlib(tmp_is, tmp_os);
-
- // Deserialize node definitions
- std::istringstream tmp_is2(tmp_os.str());
- m_nodedef->deSerialize(tmp_is2);
- m_nodedef_received = true;
-}
-
-void Client::handleCommand_CraftItemDef(ToClientPacket* pkt)
-{
- infostream << "Client: WARNING: Ignoring TOCLIENT_CRAFTITEMDEF" << std::endl;
-}
-
-void Client::handleCommand_ItemDef(ToClientPacket* pkt)
-{
- infostream << "Client: Received item definitions: packet size: "
- << pkt->getSize() << std::endl;
-
- // Mesh update thread must be stopped while
- // updating content definitions
- assert(!m_mesh_update_thread.IsRunning());
-
- // Decompress item definitions
- std::string datastring(pkt->getString(0), pkt->getSize());
- std::istringstream is(datastring, std::ios_base::binary);
- std::istringstream tmp_is(deSerializeLongString(is), std::ios::binary);
- std::ostringstream tmp_os;
- decompressZlib(tmp_is, tmp_os);
-
- // Deserialize node definitions
- std::istringstream tmp_is2(tmp_os.str());
- m_itemdef->deSerialize(tmp_is2);
- m_itemdef_received = true;
-}
-
-void Client::handleCommand_PlaySound(ToClientPacket* pkt)
-{
- s32 server_id;
- std::string name;
- float gain;
- u8 type; // 0=local, 1=positional, 2=object
- v3f pos;
- u16 object_id;
- bool loop;
-
- *pkt >> server_id >> name >> gain >> type >> pos >> object_id >> loop;
-
- // Start playing
- int client_id = -1;
- switch(type) {
- case 0: // local
- client_id = m_sound->playSound(name, loop, gain);
- break;
- case 1: // positional
- client_id = m_sound->playSoundAt(name, loop, gain, pos);
- break;
- case 2:
- { // object
- ClientActiveObject *cao = m_env.getActiveObject(object_id);
- if(cao)
- pos = cao->getPosition();
- client_id = m_sound->playSoundAt(name, loop, gain, pos);
- // TODO: Set up sound to move with object
- break;
- }
- default:
- break;
- }
-
- if(client_id != -1) {
- m_sounds_server_to_client[server_id] = client_id;
- m_sounds_client_to_server[client_id] = server_id;
- if(object_id != 0)
- m_sounds_to_objects[client_id] = object_id;
- }
-}
-
-void Client::handleCommand_StopSound(ToClientPacket* pkt)
-{
- s32 server_id;
-
- *pkt >> server_id;
-
- std::map<s32, int>::iterator i =
- m_sounds_server_to_client.find(server_id);
-
- if(i != m_sounds_server_to_client.end()) {
- int client_id = i->second;
- m_sound->stopSound(client_id);
- }
-}
-
-void Client::handleCommand_Privileges(ToClientPacket* pkt)
-{
- m_privileges.clear();
- infostream << "Client: Privileges updated: ";
- u16 num_privileges;
-
- *pkt >> num_privileges;
-
- for(unsigned int i=0; i<num_privileges; i++) {
- std::string priv;
-
- *pkt >> priv;
-
- m_privileges.insert(priv);
- infostream << priv << " ";
- }
- infostream << std::endl;
-}
-
-void Client::handleCommand_InventoryFormSpec(ToClientPacket* pkt)
-{
- Player *player = m_env.getLocalPlayer();
- assert(player != NULL);
-
- // Store formspec in LocalPlayer
- player->inventory_formspec = pkt->readLongString();
-}
-
-void Client::handleCommand_DetachedInventory(ToClientPacket* pkt)
-{
- std::string datastring(pkt->getString(0), pkt->getSize());
- std::istringstream is(datastring, std::ios_base::binary);
-
- std::string name = deSerializeString(is);
-
- infostream << "Client: Detached inventory update: \"" << name
- << "\"" << std::endl;
-
- Inventory *inv = NULL;
- if(m_detached_inventories.count(name) > 0)
- inv = m_detached_inventories[name];
- else {
- inv = new Inventory(m_itemdef);
- m_detached_inventories[name] = inv;
- }
- inv->deSerialize(is);
-}
-
-void Client::handleCommand_ShowFormSpec(ToClientPacket* pkt)
-{
- std::string formspec = pkt->readLongString();
- std::string formname;
-
- *pkt >> formname;
-
- ClientEvent event;
- event.type = CE_SHOW_FORMSPEC;
- // pointer is required as event is a struct only!
- // adding a std:string to a struct isn't possible
- event.show_formspec.formspec = new std::string(formspec);
- event.show_formspec.formname = new std::string(formname);
- m_client_event_queue.push_back(event);
-}
-
-void Client::handleCommand_SpawnParticle(ToClientPacket* pkt)
-{
- std::string datastring(pkt->getString(0), pkt->getSize());
- std::istringstream is(datastring, std::ios_base::binary);
-
- v3f pos = readV3F1000(is);
- v3f vel = readV3F1000(is);
- v3f acc = readV3F1000(is);
- float expirationtime = readF1000(is);
- float size = readF1000(is);
- bool collisiondetection = readU8(is);
- std::string texture = deSerializeLongString(is);
- bool vertical = false;
- try {
- vertical = readU8(is);
- } catch (...) {}
-
- ClientEvent event;
- event.type = CE_SPAWN_PARTICLE;
- event.spawn_particle.pos = new v3f (pos);
- event.spawn_particle.vel = new v3f (vel);
- event.spawn_particle.acc = new v3f (acc);
- event.spawn_particle.expirationtime = expirationtime;
- event.spawn_particle.size = size;
- event.spawn_particle.collisiondetection = collisiondetection;
- event.spawn_particle.vertical = vertical;
- event.spawn_particle.texture = new std::string(texture);
-
- m_client_event_queue.push_back(event);
-}
-
-void Client::handleCommand_AddParticleSpawner(ToClientPacket* pkt)
-{
- u16 amount;
- float spawntime;
- v3f minpos;
- v3f maxpos;
- v3f minvel;
- v3f maxvel;
- v3f minacc;
- v3f maxacc;
- float minexptime;
- float maxexptime;
- float minsize;
- float maxsize;
- bool collisiondetection;
- u32 id;
-
- *pkt >> amount >> spawntime >> minpos >> maxpos >> minvel >> maxvel
- >> minacc >> maxacc >> minexptime >> maxexptime >> minsize
- >> maxsize >> collisiondetection;
-
- std::string texture = pkt->readLongString();
-
- *pkt >> id;
-
- bool vertical = false;
- try {
- *pkt >> vertical;
- } catch (...) {}
-
- ClientEvent event;
- event.type = CE_ADD_PARTICLESPAWNER;
- event.add_particlespawner.amount = amount;
- event.add_particlespawner.spawntime = spawntime;
- event.add_particlespawner.minpos = new v3f (minpos);
- event.add_particlespawner.maxpos = new v3f (maxpos);
- event.add_particlespawner.minvel = new v3f (minvel);
- event.add_particlespawner.maxvel = new v3f (maxvel);
- event.add_particlespawner.minacc = new v3f (minacc);
- event.add_particlespawner.maxacc = new v3f (maxacc);
- event.add_particlespawner.minexptime = minexptime;
- event.add_particlespawner.maxexptime = maxexptime;
- event.add_particlespawner.minsize = minsize;
- event.add_particlespawner.maxsize = maxsize;
- event.add_particlespawner.collisiondetection = collisiondetection;
- event.add_particlespawner.vertical = vertical;
- event.add_particlespawner.texture = new std::string(texture);
- event.add_particlespawner.id = id;
-
- m_client_event_queue.push_back(event);
-}
-
-void Client::handleCommand_DeleteParticleSpawner(ToClientPacket* pkt)
-{
- u16 id;
-
- *pkt >> id;
-
- ClientEvent event;
- event.type = CE_DELETE_PARTICLESPAWNER;
- event.delete_particlespawner.id = id;
-
- m_client_event_queue.push_back(event);
-}
-
-void Client::handleCommand_HudAdd(ToClientPacket* pkt)
-{
- std::string datastring(pkt->getString(0), pkt->getSize());
- std::istringstream is(datastring, std::ios_base::binary);
-
- u32 id;
- u8 type;
- v2f pos;
- std::string name;
- v2f scale;
- std::string text;
- u32 number;
- u32 item;
- u32 dir;
- v2f align;
- v2f offset;
- v3f world_pos;
- v2s32 size;
-
- *pkt >> id >> type >> pos >> name >> scale >> text >> number >> item
- >> dir >> align >> offset;
- try {
- *pkt >> world_pos;
- }
- catch(SerializationError &e) {};
-
- try {
- *pkt >> size;
- } catch(SerializationError &e) {};
-
- ClientEvent event;
- event.type = CE_HUDADD;
- event.hudadd.id = id;
- event.hudadd.type = type;
- event.hudadd.pos = new v2f(pos);
- event.hudadd.name = new std::string(name);
- event.hudadd.scale = new v2f(scale);
- event.hudadd.text = new std::string(text);
- event.hudadd.number = number;
- event.hudadd.item = item;
- event.hudadd.dir = dir;
- event.hudadd.align = new v2f(align);
- event.hudadd.offset = new v2f(offset);
- event.hudadd.world_pos = new v3f(world_pos);
- event.hudadd.size = new v2s32(size);
- m_client_event_queue.push_back(event);
-}
-
-void Client::handleCommand_HudRemove(ToClientPacket* pkt)
-{
- u32 id;
-
- *pkt >> id;
-
- ClientEvent event;
- event.type = CE_HUDRM;
- event.hudrm.id = id;
- m_client_event_queue.push_back(event);
-}
-
-void Client::handleCommand_HudChange(ToClientPacket* pkt)
-{
- std::string sdata;
- v2f v2fdata;
- v3f v3fdata;
- u32 intdata = 0;
- v2s32 v2s32data;
- u32 id;
- u8 stat;
-
- *pkt >> id >> stat;
-
- if (stat == HUD_STAT_POS || stat == HUD_STAT_SCALE ||
- stat == HUD_STAT_ALIGN || stat == HUD_STAT_OFFSET)
- *pkt >> v2fdata;
- else if (stat == HUD_STAT_NAME || stat == HUD_STAT_TEXT)
- *pkt >> sdata;
- else if (stat == HUD_STAT_WORLD_POS)
- *pkt >> v3fdata;
- else if (stat == HUD_STAT_SIZE )
- *pkt >> v2s32data;
- else
- *pkt >> intdata;
-
- ClientEvent event;
- event.type = CE_HUDCHANGE;
- event.hudchange.id = id;
- event.hudchange.stat = (HudElementStat)stat;
- event.hudchange.v2fdata = new v2f(v2fdata);
- event.hudchange.v3fdata = new v3f(v3fdata);
- event.hudchange.sdata = new std::string(sdata);
- event.hudchange.data = intdata;
- event.hudchange.v2s32data = new v2s32(v2s32data);
- m_client_event_queue.push_back(event);
-}
-
-void Client::handleCommand_HudSetFlags(ToClientPacket* pkt)
-{
- u32 flags, mask;
-
- *pkt >> flags >> mask;
-
- Player *player = m_env.getLocalPlayer();
- assert(player != NULL);
-
- player->hud_flags &= ~mask;
- player->hud_flags |= flags;
-}
-
-void Client::handleCommand_HudSetParam(ToClientPacket* pkt)
-{
- u16 param; std::string value;
-
- *pkt >> param >> value;
-
- Player *player = m_env.getLocalPlayer();
- assert(player != NULL);
-
- if(param == HUD_PARAM_HOTBAR_ITEMCOUNT && value.size() == 4) {
- s32 hotbar_itemcount = readS32((u8*) value.c_str());
- if(hotbar_itemcount > 0 && hotbar_itemcount <= HUD_HOTBAR_ITEMCOUNT_MAX)
- player->hud_hotbar_itemcount = hotbar_itemcount;
- }
- else if (param == HUD_PARAM_HOTBAR_IMAGE) {
- ((LocalPlayer *) player)->hotbar_image = value;
- }
- else if (param == HUD_PARAM_HOTBAR_SELECTED_IMAGE) {
- ((LocalPlayer *) player)->hotbar_selected_image = value;
- }
-}
-
-void Client::handleCommand_HudSetSky(ToClientPacket* pkt)
-{
- std::string datastring(pkt->getString(0), pkt->getSize());
- std::istringstream is(datastring, std::ios_base::binary);
-
- video::SColor *bgcolor = new video::SColor(readARGB8(is));
- std::string *type = new std::string(deSerializeString(is));
- u16 count = readU16(is);
- std::vector<std::string> *params = new std::vector<std::string>;
-
- for(size_t i=0; i<count; i++)
- params->push_back(deSerializeString(is));
-
- ClientEvent event;
- event.type = CE_SET_SKY;
- event.set_sky.bgcolor = bgcolor;
- event.set_sky.type = type;
- event.set_sky.params = params;
- m_client_event_queue.push_back(event);
-}
-
-void Client::handleCommand_OverrideDayNightRatio(ToClientPacket* pkt)
-{
- bool do_override;
- u16 day_night_ratio_u;
-
- *pkt >> do_override >> day_night_ratio_u;
-
- float day_night_ratio_f = (float)day_night_ratio_u / 65536;
-
- ClientEvent event;
- event.type = CE_OVERRIDE_DAY_NIGHT_RATIO;
- event.override_day_night_ratio.do_override = do_override;
- event.override_day_night_ratio.ratio_f = day_night_ratio_f;
- m_client_event_queue.push_back(event);
-}
-
-void Client::handleCommand_LocalPlayerAnimations(ToClientPacket* pkt)
-{
- LocalPlayer *player = m_env.getLocalPlayer();
- assert(player != NULL);
-
- *pkt >> player->local_animations[0];
- *pkt >> player->local_animations[1];
- *pkt >> player->local_animations[2];
- *pkt >> player->local_animations[3];
- *pkt >> player->local_animation_speed;
-}
-
-void Client::handleCommand_EyeOffset(ToClientPacket* pkt)
-{
- LocalPlayer *player = m_env.getLocalPlayer();
- assert(player != NULL);
-
- *pkt >> player->eye_offset_first >> player->eye_offset_third;
-}
-
-inline void Client::handleCommand(ToClientPacket* pkt)
+inline void Client::handleCommand(NetworkPacket* pkt)
{
const ToClientCommandHandler& opHandle = toClientCommandTable[pkt->getCommand()];
(this->*opHandle.handler)(pkt);
return;
}
- ToClientPacket* pkt = new ToClientPacket(data, datasize, sender_peer_id);
+ NetworkPacket* pkt = new NetworkPacket(data, datasize, sender_peer_id);
- ToClientCommand command = pkt->getCommand();
+ ToClientCommand command = (ToClientCommand) pkt->getCommand();
//infostream<<"Client: received command="<<command<<std::endl;
m_packetcounter.add((u16)command);
delete pkt;
}
-void Client::Send(u16 channelnum, SharedBuffer<u8> data, bool reliable)
+void Client::Send(NetworkPacket* pkt)
{
- //JMutexAutoLock lock(m_con_mutex); //bulk comment-out
- m_con.Send(PEER_ID_SERVER, channelnum, data, reliable);
+ m_con.Send(PEER_ID_SERVER,
+ serverCommandFactoryTable[pkt->getCommand()].channel,
+ pkt,
+ serverCommandFactoryTable[pkt->getCommand()].reliable);
}
void Client::interact(u8 action, const PointedThing& pointed)
{
- if(m_state != LC_Ready){
- infostream<<"Client::interact() "
+ if(m_state != LC_Ready) {
+ errorstream << "Client::interact() "
"cancelled (not connected)"
- <<std::endl;
+ << std::endl;
return;
}
- std::ostringstream os(std::ios_base::binary);
-
/*
[0] u16 command
[2] u8 action
3: place block or item (to abovesurface)
4: use item
*/
- writeU16(os, TOSERVER_INTERACT);
- writeU8(os, action);
- writeU16(os, getPlayerItem());
+
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_INTERACT, 1 + 2 + 0);
+
+ *pkt << action;
+ *pkt << (u16)getPlayerItem();
+
std::ostringstream tmp_os(std::ios::binary);
pointed.serialize(tmp_os);
- os<<serializeLongString(tmp_os.str());
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
+ pkt->putLongString(tmp_os.str());
- // Send as reliable
- Send(0, data, true);
+ Send(pkt);
}
void Client::sendNodemetaFields(v3s16 p, const std::string &formname,
const std::map<std::string, std::string> &fields)
{
- std::ostringstream os(std::ios_base::binary);
-
- writeU16(os, TOSERVER_NODEMETA_FIELDS);
- writeV3S16(os, p);
- os<<serializeString(formname);
size_t fields_size = fields.size();
assert(fields_size <= 0xFFFF);
- writeU16(os, (u16) (fields_size & 0xFFFF));
+
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_NODEMETA_FIELDS, 0);
+
+ *pkt << p << formname << (u16) (fields_size & 0xFFFF);
+
for(std::map<std::string, std::string>::const_iterator
- i = fields.begin(); i != fields.end(); i++){
+ i = fields.begin(); i != fields.end(); i++) {
const std::string &name = i->first;
const std::string &value = i->second;
- os<<serializeString(name);
- os<<serializeLongString(value);
+ *pkt << name;
+ pkt->putLongString(value);
}
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- Send(0, data, true);
+ Send(pkt);
}
void Client::sendInventoryFields(const std::string &formname,
const std::map<std::string, std::string> &fields)
{
- std::ostringstream os(std::ios_base::binary);
-
- writeU16(os, TOSERVER_INVENTORY_FIELDS);
- os<<serializeString(formname);
size_t fields_size = fields.size();
assert(fields_size <= 0xFFFF);
- writeU16(os, (u16) (fields_size & 0xFFFF));
+
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_INVENTORY_FIELDS, 0);
+ *pkt << formname << (u16) (fields_size & 0xFFFF);
+
for(std::map<std::string, std::string>::const_iterator
- i = fields.begin(); i != fields.end(); i++){
+ i = fields.begin(); i != fields.end(); i++) {
const std::string &name = i->first;
const std::string &value = i->second;
- os<<serializeString(name);
- os<<serializeLongString(value);
+ *pkt << name;
+ pkt->putLongString(value);
}
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- Send(0, data, true);
+ Send(pkt);
}
void Client::sendInventoryAction(InventoryAction *a)
{
std::ostringstream os(std::ios_base::binary);
- u8 buf[12];
-
- // Write command
- writeU16(buf, TOSERVER_INVENTORY_ACTION);
- os.write((char*)buf, 2);
a->serialize(os);
// Make data buffer
std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- Send(0, data, true);
+
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_INVENTORY_ACTION, s.size());
+ pkt->putRawString(s.c_str(),s.size());
+
+ Send(pkt);
}
void Client::sendChatMessage(const std::wstring &message)
{
- std::ostringstream os(std::ios_base::binary);
- u8 buf[12];
-
- // Write command
- writeU16(buf, TOSERVER_CHAT_MESSAGE);
- os.write((char*)buf, 2);
-
- // Write length
- size_t messagesize = message.size();
- if (messagesize > 0xFFFF) {
- messagesize = 0xFFFF;
- }
- writeU16(buf, (u16) messagesize);
- os.write((char*)buf, 2);
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_CHAT_MESSAGE, 2 + message.size() * sizeof(u16));
- // Write string
- for(unsigned int i=0; i<message.size(); i++)
- {
- u16 w = message[i];
- writeU16(buf, w);
- os.write((char*)buf, 2);
- }
+ *pkt << message;
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- Send(0, data, true);
+ Send(pkt);
}
void Client::sendChangePassword(const std::wstring &oldpassword,
- const std::wstring &newpassword)
+ const std::wstring &newpassword)
{
Player *player = m_env.getLocalPlayer();
if(player == NULL)
std::string oldpwd = translatePassword(playername, oldpassword);
std::string newpwd = translatePassword(playername, newpassword);
- std::ostringstream os(std::ios_base::binary);
- u8 buf[2+PASSWORD_SIZE*2];
- /*
- [0] u16 TOSERVER_PASSWORD
- [2] u8[28] old password
- [30] u8[28] new password
- */
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_PASSWORD, 2 * PASSWORD_SIZE);
- writeU16(buf, TOSERVER_PASSWORD);
- for(unsigned int i=0;i<PASSWORD_SIZE-1;i++)
- {
- buf[2+i] = i<oldpwd.length()?oldpwd[i]:0;
- buf[30+i] = i<newpwd.length()?newpwd[i]:0;
+ for(u8 i = 0; i < PASSWORD_SIZE; i++) {
+ *pkt << (u8) (i < oldpwd.length() ? oldpwd[i] : 0);
}
- buf[2+PASSWORD_SIZE-1] = 0;
- buf[30+PASSWORD_SIZE-1] = 0;
- os.write((char*)buf, 2+PASSWORD_SIZE*2);
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- Send(0, data, true);
+ for(u8 i = 0; i < PASSWORD_SIZE; i++) {
+ *pkt << (u8) (i < newpwd.length() ? newpwd[i] : 0);
+ }
+
+ Send(pkt);
}
void Client::sendDamage(u8 damage)
{
DSTACK(__FUNCTION_NAME);
- std::ostringstream os(std::ios_base::binary);
- writeU16(os, TOSERVER_DAMAGE);
- writeU8(os, damage);
-
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- Send(0, data, true);
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_DAMAGE, sizeof(u8));
+ *pkt << damage;
+ Send(pkt);
}
void Client::sendBreath(u16 breath)
{
DSTACK(__FUNCTION_NAME);
- std::ostringstream os(std::ios_base::binary);
- writeU16(os, TOSERVER_BREATH);
- writeU16(os, breath);
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- Send(0, data, true);
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_BREATH, sizeof(u16));
+ *pkt << breath;
+ Send(pkt);
}
void Client::sendRespawn()
{
DSTACK(__FUNCTION_NAME);
- std::ostringstream os(std::ios_base::binary);
-
- writeU16(os, TOSERVER_RESPAWN);
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- Send(0, data, true);
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_RESPAWN, 0);
+ Send(pkt);
}
void Client::sendReady()
{
DSTACK(__FUNCTION_NAME);
- std::ostringstream os(std::ios_base::binary);
- writeU16(os, TOSERVER_CLIENT_READY);
- writeU8(os,VERSION_MAJOR);
- writeU8(os,VERSION_MINOR);
- writeU8(os,VERSION_PATCH_ORIG);
- writeU8(os,0);
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_CLIENT_READY,
+ 1 + 1 + 1 + 1 + 2 + sizeof(char) * strlen(minetest_version_hash));
- writeU16(os,strlen(minetest_version_hash));
- os.write(minetest_version_hash,strlen(minetest_version_hash));
+ *pkt << (u8) VERSION_MAJOR << (u8) VERSION_MINOR << (u8) VERSION_PATCH_ORIG
+ << (u8) 0 << (u16) strlen(minetest_version_hash);
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- Send(0, data, true);
+ pkt->putRawString(minetest_version_hash, (u16) strlen(minetest_version_hash));
+ Send(pkt);
}
void Client::sendPlayerPos()
v3s32 speed(sf.X*100, sf.Y*100, sf.Z*100);
/*
Format:
- [0] u16 command
- [2] v3s32 position*100
- [2+12] v3s32 speed*100
- [2+12+12] s32 pitch*100
- [2+12+12+4] s32 yaw*100
- [2+12+12+4+4] u32 keyPressed
+ [0] v3s32 position*100
+ [12] v3s32 speed*100
+ [12+12] s32 pitch*100
+ [12+12+4] s32 yaw*100
+ [12+12+4+4] u32 keyPressed
*/
- SharedBuffer<u8> data(2+12+12+4+4+4);
- writeU16(&data[0], TOSERVER_PLAYERPOS);
- writeV3S32(&data[2], position);
- writeV3S32(&data[2+12], speed);
- writeS32(&data[2+12+12], pitch);
- writeS32(&data[2+12+12+4], yaw);
- writeU32(&data[2+12+12+4+4], keyPressed);
- // Send as unreliable
- Send(0, data, false);
+
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_PLAYERPOS, 12 + 12 + 4 + 4 + 4);
+
+ *pkt << position << speed << pitch << yaw << keyPressed;
+
+ Send(pkt);
}
void Client::sendPlayerItem(u16 item)
// Set peer id if not set already
if(myplayer->peer_id == PEER_ID_INEXISTENT)
myplayer->peer_id = our_peer_id;
+
// Check that an existing peer_id is the same as the connection's
assert(myplayer->peer_id == our_peer_id);
- SharedBuffer<u8> data(2+2);
- writeU16(&data[0], TOSERVER_PLAYERITEM);
- writeU16(&data[2], item);
+ NetworkPacket* pkt = new NetworkPacket(TOSERVER_PLAYERITEM, 2);
- // Send as reliable
- Send(0, data, true);
+ *pkt << item;
+
+ Send(pkt);
}
void Client::removeNode(v3s16 p)
{
std::map<v3s16, MapBlock*> modified_blocks;
- try
- {
+ try {
m_env.getMap().removeNodeAndUpdate(p, modified_blocks);
}
- catch(InvalidPositionException &e)
- {
+ catch(InvalidPositionException &e) {
}
- for(std::map<v3s16, MapBlock * >::iterator
+ for(std::map<v3s16, MapBlock *>::iterator
i = modified_blocks.begin();
- i != modified_blocks.end(); ++i)
- {
+ i != modified_blocks.end(); ++i) {
addUpdateMeshTaskWithEdge(i->first, false, true);
}
}
std::map<v3s16, MapBlock*> modified_blocks;
- try
- {
+ try {
//TimeTaker timer3("Client::addNode(): addNodeAndUpdate");
m_env.getMap().addNodeAndUpdate(p, n, modified_blocks, remove_metadata);
}
- catch(InvalidPositionException &e)
- {}
+ catch(InvalidPositionException &e) {
+ }
- for(std::map<v3s16, MapBlock * >::iterator
+ for(std::map<v3s16, MapBlock *>::iterator
i = modified_blocks.begin();
- i != modified_blocks.end(); ++i)
- {
+ i != modified_blocks.end(); ++i) {
addUpdateMeshTaskWithEdge(i->first, false, true);
}
}
try{
addUpdateMeshTask(blockpos, ack_to_server, urgent);
}
- catch(InvalidPositionException &e){}
+ catch(InvalidPositionException &e) {}
// Leading edge
if(nodepos.X == blockpos_relative.X){
#ifndef CLIENT_HEADER
#define CLIENT_HEADER
-#include "connection.h"
+#include "network/connection.h"
#include "environment.h"
#include "irrlichttypes_extrabloated.h"
#include "jthread/jmutex.h"
#include "localplayer.h"
#include "hud.h"
#include "particles.h"
-#include "network/toclientpacket.h"
+#include "network/networkpacket.h"
struct MeshMakeData;
class MapBlockMesh;
* Command Handlers
*/
- void handleCommand(ToClientPacket* pkt);
-
- void handleCommand_Null(ToClientPacket* pkt) {};
- void handleCommand_Deprecated(ToClientPacket* pkt);
- void handleCommand_Init(ToClientPacket* pkt);
- void handleCommand_AccessDenied(ToClientPacket* pkt);
- void handleCommand_RemoveNode(ToClientPacket* pkt);
- void handleCommand_AddNode(ToClientPacket* pkt);
- void handleCommand_BlockData(ToClientPacket* pkt);
- void handleCommand_Inventory(ToClientPacket* pkt);
- void handleCommand_TimeOfDay(ToClientPacket* pkt);
- void handleCommand_ChatMessage(ToClientPacket* pkt);
- void handleCommand_ActiveObjectRemoveAdd(ToClientPacket* pkt);
- void handleCommand_ActiveObjectMessages(ToClientPacket* pkt);
- void handleCommand_Movement(ToClientPacket* pkt);
- void handleCommand_HP(ToClientPacket* pkt);
- void handleCommand_Breath(ToClientPacket* pkt);
- void handleCommand_MovePlayer(ToClientPacket* pkt);
- void handleCommand_PlayerItem(ToClientPacket* pkt);
- void handleCommand_DeathScreen(ToClientPacket* pkt);
- void handleCommand_AnnounceMedia(ToClientPacket* pkt);
- void handleCommand_Media(ToClientPacket* pkt);
- void handleCommand_ToolDef(ToClientPacket* pkt);
- void handleCommand_NodeDef(ToClientPacket* pkt);
- void handleCommand_CraftItemDef(ToClientPacket* pkt);
- void handleCommand_ItemDef(ToClientPacket* pkt);
- void handleCommand_PlaySound(ToClientPacket* pkt);
- void handleCommand_StopSound(ToClientPacket* pkt);
- void handleCommand_Privileges(ToClientPacket* pkt);
- void handleCommand_InventoryFormSpec(ToClientPacket* pkt);
- void handleCommand_DetachedInventory(ToClientPacket* pkt);
- void handleCommand_ShowFormSpec(ToClientPacket* pkt);
- void handleCommand_SpawnParticle(ToClientPacket* pkt);
- void handleCommand_AddParticleSpawner(ToClientPacket* pkt);
- void handleCommand_DeleteParticleSpawner(ToClientPacket* pkt);
- void handleCommand_HudAdd(ToClientPacket* pkt);
- void handleCommand_HudRemove(ToClientPacket* pkt);
- void handleCommand_HudChange(ToClientPacket* pkt);
- void handleCommand_HudSetFlags(ToClientPacket* pkt);
- void handleCommand_HudSetParam(ToClientPacket* pkt);
- void handleCommand_HudSetSky(ToClientPacket* pkt);
- void handleCommand_OverrideDayNightRatio(ToClientPacket* pkt);
- void handleCommand_LocalPlayerAnimations(ToClientPacket* pkt);
- void handleCommand_EyeOffset(ToClientPacket* pkt);
+ void handleCommand(NetworkPacket* pkt);
+
+ void handleCommand_Null(NetworkPacket* pkt) {};
+ void handleCommand_Deprecated(NetworkPacket* pkt);
+ void handleCommand_Init(NetworkPacket* pkt);
+ void handleCommand_AccessDenied(NetworkPacket* pkt);
+ void handleCommand_RemoveNode(NetworkPacket* pkt);
+ void handleCommand_AddNode(NetworkPacket* pkt);
+ void handleCommand_BlockData(NetworkPacket* pkt);
+ void handleCommand_Inventory(NetworkPacket* pkt);
+ void handleCommand_TimeOfDay(NetworkPacket* pkt);
+ void handleCommand_ChatMessage(NetworkPacket* pkt);
+ void handleCommand_ActiveObjectRemoveAdd(NetworkPacket* pkt);
+ void handleCommand_ActiveObjectMessages(NetworkPacket* pkt);
+ void handleCommand_Movement(NetworkPacket* pkt);
+ void handleCommand_HP(NetworkPacket* pkt);
+ void handleCommand_Breath(NetworkPacket* pkt);
+ void handleCommand_MovePlayer(NetworkPacket* pkt);
+ void handleCommand_PlayerItem(NetworkPacket* pkt);
+ void handleCommand_DeathScreen(NetworkPacket* pkt);
+ void handleCommand_AnnounceMedia(NetworkPacket* pkt);
+ void handleCommand_Media(NetworkPacket* pkt);
+ void handleCommand_ToolDef(NetworkPacket* pkt);
+ void handleCommand_NodeDef(NetworkPacket* pkt);
+ void handleCommand_CraftItemDef(NetworkPacket* pkt);
+ void handleCommand_ItemDef(NetworkPacket* pkt);
+ void handleCommand_PlaySound(NetworkPacket* pkt);
+ void handleCommand_StopSound(NetworkPacket* pkt);
+ void handleCommand_Privileges(NetworkPacket* pkt);
+ void handleCommand_InventoryFormSpec(NetworkPacket* pkt);
+ void handleCommand_DetachedInventory(NetworkPacket* pkt);
+ void handleCommand_ShowFormSpec(NetworkPacket* pkt);
+ void handleCommand_SpawnParticle(NetworkPacket* pkt);
+ void handleCommand_AddParticleSpawner(NetworkPacket* pkt);
+ void handleCommand_DeleteParticleSpawner(NetworkPacket* pkt);
+ void handleCommand_HudAdd(NetworkPacket* pkt);
+ void handleCommand_HudRemove(NetworkPacket* pkt);
+ void handleCommand_HudChange(NetworkPacket* pkt);
+ void handleCommand_HudSetFlags(NetworkPacket* pkt);
+ void handleCommand_HudSetParam(NetworkPacket* pkt);
+ void handleCommand_HudSetSky(NetworkPacket* pkt);
+ void handleCommand_OverrideDayNightRatio(NetworkPacket* pkt);
+ void handleCommand_LocalPlayerAnimations(NetworkPacket* pkt);
+ void handleCommand_EyeOffset(NetworkPacket* pkt);
void ProcessData(u8 *data, u32 datasize, u16 sender_peer_id);
// Returns true if something was received
bool AsyncProcessPacket();
bool AsyncProcessData();
- void Send(u16 channelnum, SharedBuffer<u8> data, bool reliable);
+ void Send(NetworkPacket* pkt);
void interact(u8 action, const PointedThing& pointed);
#include "player.h"
#include "settings.h"
#include "mapblock.h"
-#include "connection.h"
+#include "network/connection.h"
#include "environment.h"
#include "map.h"
#include "emerge.h"
}
}
-void ClientInterface::send(u16 peer_id,u8 channelnum,
- SharedBuffer<u8> data, bool reliable)
+void ClientInterface::send(u16 peer_id, u8 channelnum,
+ NetworkPacket* pkt, bool reliable, bool deletepkt)
{
- m_con->Send(peer_id, channelnum, data, reliable);
+ m_con->Send(peer_id, channelnum, pkt, reliable);
+
+ if (deletepkt)
+ delete pkt;
}
void ClientInterface::sendToAll(u16 channelnum,
- SharedBuffer<u8> data, bool reliable)
+ NetworkPacket* pkt, bool reliable)
{
JMutexAutoLock clientslock(m_clients_mutex);
for(std::map<u16, RemoteClient*>::iterator
i = m_clients.begin();
- i != m_clients.end(); ++i)
- {
+ i != m_clients.end(); ++i) {
RemoteClient *client = i->second;
- if (client->net_proto_version != 0)
- {
- m_con->Send(client->peer_id, channelnum, data, reliable);
+ if (client->net_proto_version != 0) {
+ m_con->Send(client->peer_id, channelnum, pkt, reliable);
}
}
+
+ delete pkt;
}
RemoteClient* ClientInterface::getClientNoEx(u16 peer_id, ClientState state_min)
#include "constants.h"
#include "serialization.h" // for SER_FMT_VER_INVALID
#include "jthread/jmutex.h"
+#include "network/networkpacket.h"
#include <list>
#include <vector>
std::vector<std::string> getPlayerNames();
/* send message to client */
- void send(u16 peer_id, u8 channelnum, SharedBuffer<u8> data, bool reliable);
+ void send(u16 peer_id, u8 channelnum, NetworkPacket* pkt, bool reliable, bool deletepkt=true);
/* send to all clients */
- void sendToAll(u16 channelnum, SharedBuffer<u8> data, bool reliable);
+ void sendToAll(u16 channelnum, NetworkPacket* pkt, bool reliable);
/* delete a client */
void DeleteClient(u16 peer_id);
JMutex m_env_mutex;
float m_print_info_timer;
-
+
static const char *statenames[];
};
+++ /dev/null
-/*
-Minetest
-Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation; either version 2.1 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#include <iomanip>
-#include <errno.h>
-#include "connection.h"
-#include "main.h"
-#include "serialization.h"
-#include "log.h"
-#include "porting.h"
-#include "util/serialize.h"
-#include "util/numeric.h"
-#include "util/string.h"
-#include "settings.h"
-#include "profiler.h"
-#include "main.h" // for profiling
-
-namespace con
-{
-
-/******************************************************************************/
-/* defines used for debugging and profiling */
-/******************************************************************************/
-#ifdef NDEBUG
-#define LOG(a) a
-#define PROFILE(a)
-#undef DEBUG_CONNECTION_KBPS
-#else
-/* this mutex is used to achieve log message consistency */
-JMutex log_message_mutex;
-#define LOG(a) \
- { \
- JMutexAutoLock loglock(log_message_mutex); \
- a; \
- }
-#define PROFILE(a) a
-//#define DEBUG_CONNECTION_KBPS
-#undef DEBUG_CONNECTION_KBPS
-#endif
-
-
-static inline float CALC_DTIME(unsigned int lasttime, unsigned int curtime) {
- float value = ( curtime - lasttime) / 1000.0;
- return MYMAX(MYMIN(value,0.1),0.0);
-}
-
-/* maximum window size to use, 0xFFFF is theoretical maximum don't think about
- * touching it, the less you're away from it the more likely data corruption
- * will occur
- */
-#define MAX_RELIABLE_WINDOW_SIZE 0x8000
- /* starting value for window size */
-#define MIN_RELIABLE_WINDOW_SIZE 0x40
-
-#define MAX_UDP_PEERS 65535
-
-#define PING_TIMEOUT 5.0
-
-static u16 readPeerId(u8 *packetdata)
-{
- return readU16(&packetdata[4]);
-}
-static u8 readChannel(u8 *packetdata)
-{
- return readU8(&packetdata[6]);
-}
-
-BufferedPacket makePacket(Address &address, u8 *data, u32 datasize,
- u32 protocol_id, u16 sender_peer_id, u8 channel)
-{
- u32 packet_size = datasize + BASE_HEADER_SIZE;
- BufferedPacket p(packet_size);
- p.address = address;
-
- writeU32(&p.data[0], protocol_id);
- writeU16(&p.data[4], sender_peer_id);
- writeU8(&p.data[6], channel);
-
- memcpy(&p.data[BASE_HEADER_SIZE], data, datasize);
-
- return p;
-}
-
-BufferedPacket makePacket(Address &address, SharedBuffer<u8> &data,
- u32 protocol_id, u16 sender_peer_id, u8 channel)
-{
- return makePacket(address, *data, data.getSize(),
- protocol_id, sender_peer_id, channel);
-}
-
-SharedBuffer<u8> makeOriginalPacket(
- SharedBuffer<u8> data)
-{
- u32 header_size = 1;
- u32 packet_size = data.getSize() + header_size;
- SharedBuffer<u8> b(packet_size);
-
- writeU8(&(b[0]), TYPE_ORIGINAL);
- if (data.getSize() > 0) {
- memcpy(&(b[header_size]), *data, data.getSize());
- }
- return b;
-}
-
-std::list<SharedBuffer<u8> > makeSplitPacket(
- SharedBuffer<u8> data,
- u32 chunksize_max,
- u16 seqnum)
-{
- // Chunk packets, containing the TYPE_SPLIT header
- std::list<SharedBuffer<u8> > chunks;
-
- u32 chunk_header_size = 7;
- u32 maximum_data_size = chunksize_max - chunk_header_size;
- u32 start = 0;
- u32 end = 0;
- u32 chunk_num = 0;
- u16 chunk_count = 0;
- do{
- end = start + maximum_data_size - 1;
- if(end > data.getSize() - 1)
- end = data.getSize() - 1;
-
- u32 payload_size = end - start + 1;
- u32 packet_size = chunk_header_size + payload_size;
-
- SharedBuffer<u8> chunk(packet_size);
-
- writeU8(&chunk[0], TYPE_SPLIT);
- writeU16(&chunk[1], seqnum);
- // [3] u16 chunk_count is written at next stage
- writeU16(&chunk[5], chunk_num);
- memcpy(&chunk[chunk_header_size], &data[start], payload_size);
-
- chunks.push_back(chunk);
- chunk_count++;
-
- start = end + 1;
- chunk_num++;
- }
- while(end != data.getSize() - 1);
-
- for(std::list<SharedBuffer<u8> >::iterator i = chunks.begin();
- i != chunks.end(); ++i)
- {
- // Write chunk_count
- writeU16(&((*i)[3]), chunk_count);
- }
-
- return chunks;
-}
-
-std::list<SharedBuffer<u8> > makeAutoSplitPacket(
- SharedBuffer<u8> data,
- u32 chunksize_max,
- u16 &split_seqnum)
-{
- u32 original_header_size = 1;
- std::list<SharedBuffer<u8> > list;
- if(data.getSize() + original_header_size > chunksize_max)
- {
- list = makeSplitPacket(data, chunksize_max, split_seqnum);
- split_seqnum++;
- return list;
- }
- else
- {
- list.push_back(makeOriginalPacket(data));
- }
- return list;
-}
-
-SharedBuffer<u8> makeReliablePacket(
- SharedBuffer<u8> data,
- u16 seqnum)
-{
- u32 header_size = 3;
- u32 packet_size = data.getSize() + header_size;
- SharedBuffer<u8> b(packet_size);
-
- writeU8(&b[0], TYPE_RELIABLE);
- writeU16(&b[1], seqnum);
-
- memcpy(&b[header_size], *data, data.getSize());
-
- return b;
-}
-
-/*
- ReliablePacketBuffer
-*/
-
-ReliablePacketBuffer::ReliablePacketBuffer(): m_list_size(0) {}
-
-void ReliablePacketBuffer::print()
-{
- JMutexAutoLock listlock(m_list_mutex);
- LOG(dout_con<<"Dump of ReliablePacketBuffer:" << std::endl);
- unsigned int index = 0;
- for(std::list<BufferedPacket>::iterator i = m_list.begin();
- i != m_list.end();
- ++i)
- {
- u16 s = readU16(&(i->data[BASE_HEADER_SIZE+1]));
- LOG(dout_con<<index<< ":" << s << std::endl);
- index++;
- }
-}
-bool ReliablePacketBuffer::empty()
-{
- JMutexAutoLock listlock(m_list_mutex);
- return m_list.empty();
-}
-
-u32 ReliablePacketBuffer::size()
-{
- return m_list_size;
-}
-
-bool ReliablePacketBuffer::containsPacket(u16 seqnum)
-{
- return !(findPacket(seqnum) == m_list.end());
-}
-
-RPBSearchResult ReliablePacketBuffer::findPacket(u16 seqnum)
-{
- std::list<BufferedPacket>::iterator i = m_list.begin();
- for(; i != m_list.end(); ++i)
- {
- u16 s = readU16(&(i->data[BASE_HEADER_SIZE+1]));
- /*dout_con<<"findPacket(): finding seqnum="<<seqnum
- <<", comparing to s="<<s<<std::endl;*/
- if(s == seqnum)
- break;
- }
- return i;
-}
-RPBSearchResult ReliablePacketBuffer::notFound()
-{
- return m_list.end();
-}
-bool ReliablePacketBuffer::getFirstSeqnum(u16& result)
-{
- JMutexAutoLock listlock(m_list_mutex);
- if(m_list.empty())
- return false;
- BufferedPacket p = *m_list.begin();
- result = readU16(&p.data[BASE_HEADER_SIZE+1]);
- return true;
-}
-
-BufferedPacket ReliablePacketBuffer::popFirst()
-{
- JMutexAutoLock listlock(m_list_mutex);
- if(m_list.empty())
- throw NotFoundException("Buffer is empty");
- BufferedPacket p = *m_list.begin();
- m_list.erase(m_list.begin());
- --m_list_size;
-
- if (m_list_size == 0) {
- m_oldest_non_answered_ack = 0;
- } else {
- m_oldest_non_answered_ack =
- readU16(&(*m_list.begin()).data[BASE_HEADER_SIZE+1]);
- }
- return p;
-}
-BufferedPacket ReliablePacketBuffer::popSeqnum(u16 seqnum)
-{
- JMutexAutoLock listlock(m_list_mutex);
- RPBSearchResult r = findPacket(seqnum);
- if(r == notFound()){
- LOG(dout_con<<"Sequence number: " << seqnum
- << " not found in reliable buffer"<<std::endl);
- throw NotFoundException("seqnum not found in buffer");
- }
- BufferedPacket p = *r;
-
-
- RPBSearchResult next = r;
- next++;
- if (next != notFound()) {
- u16 s = readU16(&(next->data[BASE_HEADER_SIZE+1]));
- m_oldest_non_answered_ack = s;
- }
-
- m_list.erase(r);
- --m_list_size;
-
- if (m_list_size == 0)
- { m_oldest_non_answered_ack = 0; }
- else
- { m_oldest_non_answered_ack = readU16(&(*m_list.begin()).data[BASE_HEADER_SIZE+1]); }
- return p;
-}
-void ReliablePacketBuffer::insert(BufferedPacket &p,u16 next_expected)
-{
- JMutexAutoLock listlock(m_list_mutex);
- assert(p.data.getSize() >= BASE_HEADER_SIZE+3);
- u8 type = readU8(&p.data[BASE_HEADER_SIZE+0]);
- assert(type == TYPE_RELIABLE);
- u16 seqnum = readU16(&p.data[BASE_HEADER_SIZE+1]);
-
- assert(seqnum_in_window(seqnum,next_expected,MAX_RELIABLE_WINDOW_SIZE));
- assert(seqnum != next_expected);
-
- ++m_list_size;
- assert(m_list_size <= SEQNUM_MAX+1);
-
- // Find the right place for the packet and insert it there
- // If list is empty, just add it
- if(m_list.empty())
- {
- m_list.push_back(p);
- m_oldest_non_answered_ack = seqnum;
- // Done.
- return;
- }
-
- // Otherwise find the right place
- std::list<BufferedPacket>::iterator i = m_list.begin();
- // Find the first packet in the list which has a higher seqnum
- u16 s = readU16(&(i->data[BASE_HEADER_SIZE+1]));
-
- /* case seqnum is smaller then next_expected seqnum */
- /* this is true e.g. on wrap around */
- if (seqnum < next_expected) {
- while(((s < seqnum) || (s >= next_expected)) && (i != m_list.end())) {
- i++;
- if (i != m_list.end())
- s = readU16(&(i->data[BASE_HEADER_SIZE+1]));
- }
- }
- /* non wrap around case (at least for incoming and next_expected */
- else
- {
- while(((s < seqnum) && (s >= next_expected)) && (i != m_list.end())) {
- i++;
- if (i != m_list.end())
- s = readU16(&(i->data[BASE_HEADER_SIZE+1]));
- }
- }
-
- if (s == seqnum) {
- if (
- (readU16(&(i->data[BASE_HEADER_SIZE+1])) != seqnum) ||
- (i->data.getSize() != p.data.getSize()) ||
- (i->address != p.address)
- )
- {
- /* if this happens your maximum transfer window may be to big */
- fprintf(stderr,
- "Duplicated seqnum %d non matching packet detected:\n",
- seqnum);
- fprintf(stderr, "Old: seqnum: %05d size: %04d, address: %s\n",
- readU16(&(i->data[BASE_HEADER_SIZE+1])),i->data.getSize(),
- i->address.serializeString().c_str());
- fprintf(stderr, "New: seqnum: %05d size: %04u, address: %s\n",
- readU16(&(p.data[BASE_HEADER_SIZE+1])),p.data.getSize(),
- p.address.serializeString().c_str());
- throw IncomingDataCorruption("duplicated packet isn't same as original one");
- }
-
- assert(readU16(&(i->data[BASE_HEADER_SIZE+1])) == seqnum);
- assert(i->data.getSize() == p.data.getSize());
- assert(i->address == p.address);
-
- /* nothing to do this seems to be a resent packet */
- /* for paranoia reason data should be compared */
- --m_list_size;
- }
- /* insert or push back */
- else if (i != m_list.end()) {
- m_list.insert(i, p);
- }
- else {
- m_list.push_back(p);
- }
-
- /* update last packet number */
- m_oldest_non_answered_ack = readU16(&(*m_list.begin()).data[BASE_HEADER_SIZE+1]);
-}
-
-void ReliablePacketBuffer::incrementTimeouts(float dtime)
-{
- JMutexAutoLock listlock(m_list_mutex);
- for(std::list<BufferedPacket>::iterator i = m_list.begin();
- i != m_list.end(); ++i)
- {
- i->time += dtime;
- i->totaltime += dtime;
- }
-}
-
-std::list<BufferedPacket> ReliablePacketBuffer::getTimedOuts(float timeout,
- unsigned int max_packets)
-{
- JMutexAutoLock listlock(m_list_mutex);
- std::list<BufferedPacket> timed_outs;
- for(std::list<BufferedPacket>::iterator i = m_list.begin();
- i != m_list.end(); ++i)
- {
- if(i->time >= timeout) {
- timed_outs.push_back(*i);
-
- //this packet will be sent right afterwards reset timeout here
- i->time = 0.0;
- if (timed_outs.size() >= max_packets)
- break;
- }
- }
- return timed_outs;
-}
-
-/*
- IncomingSplitBuffer
-*/
-
-IncomingSplitBuffer::~IncomingSplitBuffer()
-{
- JMutexAutoLock listlock(m_map_mutex);
- for(std::map<u16, IncomingSplitPacket*>::iterator i = m_buf.begin();
- i != m_buf.end(); ++i)
- {
- delete i->second;
- }
-}
-/*
- This will throw a GotSplitPacketException when a full
- split packet is constructed.
-*/
-SharedBuffer<u8> IncomingSplitBuffer::insert(BufferedPacket &p, bool reliable)
-{
- JMutexAutoLock listlock(m_map_mutex);
- u32 headersize = BASE_HEADER_SIZE + 7;
- assert(p.data.getSize() >= headersize);
- u8 type = readU8(&p.data[BASE_HEADER_SIZE+0]);
- assert(type == TYPE_SPLIT);
- u16 seqnum = readU16(&p.data[BASE_HEADER_SIZE+1]);
- u16 chunk_count = readU16(&p.data[BASE_HEADER_SIZE+3]);
- u16 chunk_num = readU16(&p.data[BASE_HEADER_SIZE+5]);
-
- // Add if doesn't exist
- if(m_buf.find(seqnum) == m_buf.end())
- {
- IncomingSplitPacket *sp = new IncomingSplitPacket();
- sp->chunk_count = chunk_count;
- sp->reliable = reliable;
- m_buf[seqnum] = sp;
- }
-
- IncomingSplitPacket *sp = m_buf[seqnum];
-
- // TODO: These errors should be thrown or something? Dunno.
- if(chunk_count != sp->chunk_count)
- LOG(derr_con<<"Connection: WARNING: chunk_count="<<chunk_count
- <<" != sp->chunk_count="<<sp->chunk_count
- <<std::endl);
- if(reliable != sp->reliable)
- LOG(derr_con<<"Connection: WARNING: reliable="<<reliable
- <<" != sp->reliable="<<sp->reliable
- <<std::endl);
-
- // If chunk already exists, ignore it.
- // Sometimes two identical packets may arrive when there is network
- // lag and the server re-sends stuff.
- if(sp->chunks.find(chunk_num) != sp->chunks.end())
- return SharedBuffer<u8>();
-
- // Cut chunk data out of packet
- u32 chunkdatasize = p.data.getSize() - headersize;
- SharedBuffer<u8> chunkdata(chunkdatasize);
- memcpy(*chunkdata, &(p.data[headersize]), chunkdatasize);
-
- // Set chunk data in buffer
- sp->chunks[chunk_num] = chunkdata;
-
- // If not all chunks are received, return empty buffer
- if(sp->allReceived() == false)
- return SharedBuffer<u8>();
-
- // Calculate total size
- u32 totalsize = 0;
- for(std::map<u16, SharedBuffer<u8> >::iterator i = sp->chunks.begin();
- i != sp->chunks.end(); ++i)
- {
- totalsize += i->second.getSize();
- }
-
- SharedBuffer<u8> fulldata(totalsize);
-
- // Copy chunks to data buffer
- u32 start = 0;
- for(u32 chunk_i=0; chunk_i<sp->chunk_count;
- chunk_i++)
- {
- SharedBuffer<u8> buf = sp->chunks[chunk_i];
- u16 chunkdatasize = buf.getSize();
- memcpy(&fulldata[start], *buf, chunkdatasize);
- start += chunkdatasize;;
- }
-
- // Remove sp from buffer
- m_buf.erase(seqnum);
- delete sp;
-
- return fulldata;
-}
-void IncomingSplitBuffer::removeUnreliableTimedOuts(float dtime, float timeout)
-{
- std::list<u16> remove_queue;
- {
- JMutexAutoLock listlock(m_map_mutex);
- for(std::map<u16, IncomingSplitPacket*>::iterator i = m_buf.begin();
- i != m_buf.end(); ++i)
- {
- IncomingSplitPacket *p = i->second;
- // Reliable ones are not removed by timeout
- if(p->reliable == true)
- continue;
- p->time += dtime;
- if(p->time >= timeout)
- remove_queue.push_back(i->first);
- }
- }
- for(std::list<u16>::iterator j = remove_queue.begin();
- j != remove_queue.end(); ++j)
- {
- JMutexAutoLock listlock(m_map_mutex);
- LOG(dout_con<<"NOTE: Removing timed out unreliable split packet"<<std::endl);
- delete m_buf[*j];
- m_buf.erase(*j);
- }
-}
-
-/*
- Channel
-*/
-
-Channel::Channel() :
- window_size(MIN_RELIABLE_WINDOW_SIZE),
- next_incoming_seqnum(SEQNUM_INITIAL),
- next_outgoing_seqnum(SEQNUM_INITIAL),
- next_outgoing_split_seqnum(SEQNUM_INITIAL),
- current_packet_loss(0),
- current_packet_too_late(0),
- current_packet_successfull(0),
- packet_loss_counter(0),
- current_bytes_transfered(0),
- current_bytes_received(0),
- current_bytes_lost(0),
- max_kbps(0.0),
- cur_kbps(0.0),
- avg_kbps(0.0),
- max_incoming_kbps(0.0),
- cur_incoming_kbps(0.0),
- avg_incoming_kbps(0.0),
- max_kbps_lost(0.0),
- cur_kbps_lost(0.0),
- avg_kbps_lost(0.0),
- bpm_counter(0.0),
- rate_samples(0)
-{
-}
-
-Channel::~Channel()
-{
-}
-
-u16 Channel::readNextIncomingSeqNum()
-{
- JMutexAutoLock internal(m_internal_mutex);
- return next_incoming_seqnum;
-}
-
-u16 Channel::incNextIncomingSeqNum()
-{
- JMutexAutoLock internal(m_internal_mutex);
- u16 retval = next_incoming_seqnum;
- next_incoming_seqnum++;
- return retval;
-}
-
-u16 Channel::readNextSplitSeqNum()
-{
- JMutexAutoLock internal(m_internal_mutex);
- return next_outgoing_split_seqnum;
-}
-void Channel::setNextSplitSeqNum(u16 seqnum)
-{
- JMutexAutoLock internal(m_internal_mutex);
- next_outgoing_split_seqnum = seqnum;
-}
-
-u16 Channel::getOutgoingSequenceNumber(bool& successfull)
-{
- JMutexAutoLock internal(m_internal_mutex);
- u16 retval = next_outgoing_seqnum;
- u16 lowest_unacked_seqnumber;
-
- /* shortcut if there ain't any packet in outgoing list */
- if (outgoing_reliables_sent.empty())
- {
- next_outgoing_seqnum++;
- return retval;
- }
-
- if (outgoing_reliables_sent.getFirstSeqnum(lowest_unacked_seqnumber))
- {
- if (lowest_unacked_seqnumber < next_outgoing_seqnum) {
- // ugly cast but this one is required in order to tell compiler we
- // know about difference of two unsigned may be negative in general
- // but we already made sure it won't happen in this case
- if (((u16)(next_outgoing_seqnum - lowest_unacked_seqnumber)) > window_size) {
- successfull = false;
- return 0;
- }
- }
- else {
- // ugly cast but this one is required in order to tell compiler we
- // know about difference of two unsigned may be negative in general
- // but we already made sure it won't happen in this case
- if ((next_outgoing_seqnum + (u16)(SEQNUM_MAX - lowest_unacked_seqnumber)) >
- window_size) {
- successfull = false;
- return 0;
- }
- }
- }
-
- next_outgoing_seqnum++;
- return retval;
-}
-
-u16 Channel::readOutgoingSequenceNumber()
-{
- JMutexAutoLock internal(m_internal_mutex);
- return next_outgoing_seqnum;
-}
-
-bool Channel::putBackSequenceNumber(u16 seqnum)
-{
- if (((seqnum + 1) % (SEQNUM_MAX+1)) == next_outgoing_seqnum) {
-
- next_outgoing_seqnum = seqnum;
- return true;
- }
- return false;
-}
-
-void Channel::UpdateBytesSent(unsigned int bytes, unsigned int packets)
-{
- JMutexAutoLock internal(m_internal_mutex);
- current_bytes_transfered += bytes;
- current_packet_successfull += packets;
-}
-
-void Channel::UpdateBytesReceived(unsigned int bytes) {
- JMutexAutoLock internal(m_internal_mutex);
- current_bytes_received += bytes;
-}
-
-void Channel::UpdateBytesLost(unsigned int bytes)
-{
- JMutexAutoLock internal(m_internal_mutex);
- current_bytes_lost += bytes;
-}
-
-
-void Channel::UpdatePacketLossCounter(unsigned int count)
-{
- JMutexAutoLock internal(m_internal_mutex);
- current_packet_loss += count;
-}
-
-void Channel::UpdatePacketTooLateCounter()
-{
- JMutexAutoLock internal(m_internal_mutex);
- current_packet_too_late++;
-}
-
-void Channel::UpdateTimers(float dtime,bool legacy_peer)
-{
- bpm_counter += dtime;
- packet_loss_counter += dtime;
-
- if (packet_loss_counter > 1.0)
- {
- packet_loss_counter -= 1.0;
-
- unsigned int packet_loss = 11; /* use a neutral value for initialization */
- unsigned int packets_successfull = 0;
- //unsigned int packet_too_late = 0;
-
- bool reasonable_amount_of_data_transmitted = false;
-
- {
- JMutexAutoLock internal(m_internal_mutex);
- packet_loss = current_packet_loss;
- //packet_too_late = current_packet_too_late;
- packets_successfull = current_packet_successfull;
-
- if (current_bytes_transfered > (unsigned int) (window_size*512/2))
- {
- reasonable_amount_of_data_transmitted = true;
- }
- current_packet_loss = 0;
- current_packet_too_late = 0;
- current_packet_successfull = 0;
- }
-
- /* dynamic window size is only available for non legacy peers */
- if (!legacy_peer) {
- float successfull_to_lost_ratio = 0.0;
- bool done = false;
-
- if (packets_successfull > 0) {
- successfull_to_lost_ratio = packet_loss/packets_successfull;
- }
- else if (packet_loss > 0)
- {
- window_size = MYMAX(
- (window_size - 10),
- MIN_RELIABLE_WINDOW_SIZE);
- done = true;
- }
-
- if (!done)
- {
- if ((successfull_to_lost_ratio < 0.01) &&
- (window_size < MAX_RELIABLE_WINDOW_SIZE))
- {
- /* don't even think about increasing if we didn't even
- * use major parts of our window */
- if (reasonable_amount_of_data_transmitted)
- window_size = MYMIN(
- (window_size + 100),
- MAX_RELIABLE_WINDOW_SIZE);
- }
- else if ((successfull_to_lost_ratio < 0.05) &&
- (window_size < MAX_RELIABLE_WINDOW_SIZE))
- {
- /* don't even think about increasing if we didn't even
- * use major parts of our window */
- if (reasonable_amount_of_data_transmitted)
- window_size = MYMIN(
- (window_size + 50),
- MAX_RELIABLE_WINDOW_SIZE);
- }
- else if (successfull_to_lost_ratio > 0.15)
- {
- window_size = MYMAX(
- (window_size - 100),
- MIN_RELIABLE_WINDOW_SIZE);
- }
- else if (successfull_to_lost_ratio > 0.1)
- {
- window_size = MYMAX(
- (window_size - 50),
- MIN_RELIABLE_WINDOW_SIZE);
- }
- }
- }
- }
-
- if (bpm_counter > 10.0)
- {
- {
- JMutexAutoLock internal(m_internal_mutex);
- cur_kbps =
- (((float) current_bytes_transfered)/bpm_counter)/1024.0;
- current_bytes_transfered = 0;
- cur_kbps_lost =
- (((float) current_bytes_lost)/bpm_counter)/1024.0;
- current_bytes_lost = 0;
- cur_incoming_kbps =
- (((float) current_bytes_received)/bpm_counter)/1024.0;
- current_bytes_received = 0;
- bpm_counter = 0;
- }
-
- if (cur_kbps > max_kbps)
- {
- max_kbps = cur_kbps;
- }
-
- if (cur_kbps_lost > max_kbps_lost)
- {
- max_kbps_lost = cur_kbps_lost;
- }
-
- if (cur_incoming_kbps > max_incoming_kbps) {
- max_incoming_kbps = cur_incoming_kbps;
- }
-
- rate_samples = MYMIN(rate_samples+1,10);
- float old_fraction = ((float) (rate_samples-1) )/( (float) rate_samples);
- avg_kbps = avg_kbps * old_fraction +
- cur_kbps * (1.0 - old_fraction);
- avg_kbps_lost = avg_kbps_lost * old_fraction +
- cur_kbps_lost * (1.0 - old_fraction);
- avg_incoming_kbps = avg_incoming_kbps * old_fraction +
- cur_incoming_kbps * (1.0 - old_fraction);
- }
-}
-
-
-/*
- Peer
-*/
-
-PeerHelper::PeerHelper() :
- m_peer(0)
-{}
-
-PeerHelper::PeerHelper(Peer* peer) :
- m_peer(peer)
-{
- if (peer != NULL)
- {
- if (!peer->IncUseCount())
- {
- m_peer = 0;
- }
- }
-}
-
-PeerHelper::~PeerHelper()
-{
- if (m_peer != 0)
- m_peer->DecUseCount();
-
- m_peer = 0;
-}
-
-PeerHelper& PeerHelper::operator=(Peer* peer)
-{
- m_peer = peer;
- if (peer != NULL)
- {
- if (!peer->IncUseCount())
- {
- m_peer = 0;
- }
- }
- return *this;
-}
-
-Peer* PeerHelper::operator->() const
-{
- return m_peer;
-}
-
-Peer* PeerHelper::operator&() const
-{
- return m_peer;
-}
-
-bool PeerHelper::operator!() {
- return ! m_peer;
-}
-
-bool PeerHelper::operator!=(void* ptr)
-{
- return ((void*) m_peer != ptr);
-}
-
-bool Peer::IncUseCount()
-{
- JMutexAutoLock lock(m_exclusive_access_mutex);
-
- if (!m_pending_deletion)
- {
- this->m_usage++;
- return true;
- }
-
- return false;
-}
-
-void Peer::DecUseCount()
-{
- {
- JMutexAutoLock lock(m_exclusive_access_mutex);
- assert(m_usage > 0);
- m_usage--;
-
- if (!((m_pending_deletion) && (m_usage == 0)))
- return;
- }
- delete this;
-}
-
-void Peer::RTTStatistics(float rtt, std::string profiler_id,
- unsigned int num_samples) {
-
- if (m_last_rtt > 0) {
- /* set min max values */
- if (rtt < m_rtt.min_rtt)
- m_rtt.min_rtt = rtt;
- if (rtt >= m_rtt.max_rtt)
- m_rtt.max_rtt = rtt;
-
- /* do average calculation */
- if(m_rtt.avg_rtt < 0.0)
- m_rtt.avg_rtt = rtt;
- else
- m_rtt.avg_rtt = m_rtt.avg_rtt * (num_samples/(num_samples-1)) +
- rtt * (1/num_samples);
-
- /* do jitter calculation */
-
- //just use some neutral value at beginning
- float jitter = m_rtt.jitter_min;
-
- if (rtt > m_last_rtt)
- jitter = rtt-m_last_rtt;
-
- if (rtt <= m_last_rtt)
- jitter = m_last_rtt - rtt;
-
- if (jitter < m_rtt.jitter_min)
- m_rtt.jitter_min = jitter;
- if (jitter >= m_rtt.jitter_max)
- m_rtt.jitter_max = jitter;
-
- if(m_rtt.jitter_avg < 0.0)
- m_rtt.jitter_avg = jitter;
- else
- m_rtt.jitter_avg = m_rtt.jitter_avg * (num_samples/(num_samples-1)) +
- jitter * (1/num_samples);
-
- if (profiler_id != "")
- {
- g_profiler->graphAdd(profiler_id + "_rtt", rtt);
- g_profiler->graphAdd(profiler_id + "_jitter", jitter);
- }
- }
- /* save values required for next loop */
- m_last_rtt = rtt;
-}
-
-bool Peer::isTimedOut(float timeout)
-{
- JMutexAutoLock lock(m_exclusive_access_mutex);
- u32 current_time = porting::getTimeMs();
-
- float dtime = CALC_DTIME(m_last_timeout_check,current_time);
- m_last_timeout_check = current_time;
-
- m_timeout_counter += dtime;
-
- return m_timeout_counter > timeout;
-}
-
-void Peer::Drop()
-{
- {
- JMutexAutoLock usage_lock(m_exclusive_access_mutex);
- m_pending_deletion = true;
- if (m_usage != 0)
- return;
- }
-
- PROFILE(std::stringstream peerIdentifier1);
- PROFILE(peerIdentifier1 << "runTimeouts[" << m_connection->getDesc()
- << ";" << id << ";RELIABLE]");
- PROFILE(g_profiler->remove(peerIdentifier1.str()));
- PROFILE(std::stringstream peerIdentifier2);
- PROFILE(peerIdentifier2 << "sendPackets[" << m_connection->getDesc()
- << ";" << id << ";RELIABLE]");
- PROFILE(ScopeProfiler peerprofiler(g_profiler, peerIdentifier2.str(), SPT_AVG));
-
- delete this;
-}
-
-UDPPeer::UDPPeer(u16 a_id, Address a_address, Connection* connection) :
- Peer(a_address,a_id,connection),
- m_pending_disconnect(false),
- resend_timeout(0.5),
- m_legacy_peer(true)
-{
-}
-
-bool UDPPeer::getAddress(MTProtocols type,Address& toset)
-{
- if ((type == MTP_UDP) || (type == MTP_MINETEST_RELIABLE_UDP) || (type == MTP_PRIMARY))
- {
- toset = address;
- return true;
- }
-
- return false;
-}
-
-void UDPPeer::setNonLegacyPeer()
-{
- m_legacy_peer = false;
- for(unsigned int i=0; i< CHANNEL_COUNT; i++)
- {
- channels->setWindowSize(g_settings->getU16("max_packets_per_iteration"));
- }
-}
-
-void UDPPeer::reportRTT(float rtt)
-{
- if (rtt < 0.0) {
- return;
- }
- RTTStatistics(rtt,"rudp",MAX_RELIABLE_WINDOW_SIZE*10);
-
- float timeout = getStat(AVG_RTT) * RESEND_TIMEOUT_FACTOR;
- if(timeout < RESEND_TIMEOUT_MIN)
- timeout = RESEND_TIMEOUT_MIN;
- if(timeout > RESEND_TIMEOUT_MAX)
- timeout = RESEND_TIMEOUT_MAX;
-
- JMutexAutoLock usage_lock(m_exclusive_access_mutex);
- resend_timeout = timeout;
-}
-
-bool UDPPeer::Ping(float dtime,SharedBuffer<u8>& data)
-{
- m_ping_timer += dtime;
- if(m_ping_timer >= PING_TIMEOUT)
- {
- // Create and send PING packet
- writeU8(&data[0], TYPE_CONTROL);
- writeU8(&data[1], CONTROLTYPE_PING);
- m_ping_timer = 0.0;
- return true;
- }
- return false;
-}
-
-void UDPPeer::PutReliableSendCommand(ConnectionCommand &c,
- unsigned int max_packet_size)
-{
- if (m_pending_disconnect)
- return;
-
- if ( channels[c.channelnum].queued_commands.empty() &&
- /* don't queue more packets then window size */
- (channels[c.channelnum].queued_reliables.size()
- < (channels[c.channelnum].getWindowSize()/2)))
- {
- LOG(dout_con<<m_connection->getDesc()
- <<" processing reliable command for peer id: " << c.peer_id
- <<" data size: " << c.data.getSize() << std::endl);
- if (!processReliableSendCommand(c,max_packet_size))
- {
- channels[c.channelnum].queued_commands.push_back(c);
- }
- }
- else
- {
- LOG(dout_con<<m_connection->getDesc()
- <<" Queueing reliable command for peer id: " << c.peer_id
- <<" data size: " << c.data.getSize() <<std::endl);
- channels[c.channelnum].queued_commands.push_back(c);
- }
-}
-
-bool UDPPeer::processReliableSendCommand(
- ConnectionCommand &c,
- unsigned int max_packet_size)
-{
- if (m_pending_disconnect)
- return true;
-
- u32 chunksize_max = max_packet_size
- - BASE_HEADER_SIZE
- - RELIABLE_HEADER_SIZE;
-
- assert(c.data.getSize() < MAX_RELIABLE_WINDOW_SIZE*512);
-
- std::list<SharedBuffer<u8> > originals;
- u16 split_sequence_number = channels[c.channelnum].readNextSplitSeqNum();
-
- if (c.raw)
- {
- originals.push_back(c.data);
- }
- else {
- originals = makeAutoSplitPacket(c.data, chunksize_max,split_sequence_number);
- channels[c.channelnum].setNextSplitSeqNum(split_sequence_number);
- }
-
- bool have_sequence_number = true;
- bool have_initial_sequence_number = false;
- Queue<BufferedPacket> toadd;
- volatile u16 initial_sequence_number = 0;
-
- for(std::list<SharedBuffer<u8> >::iterator i = originals.begin();
- i != originals.end(); ++i)
- {
- u16 seqnum = channels[c.channelnum].getOutgoingSequenceNumber(have_sequence_number);
-
- /* oops, we don't have enough sequence numbers to send this packet */
- if (!have_sequence_number)
- break;
-
- if (!have_initial_sequence_number)
- {
- initial_sequence_number = seqnum;
- have_initial_sequence_number = true;
- }
-
- SharedBuffer<u8> reliable = makeReliablePacket(*i, seqnum);
-
- // Add base headers and make a packet
- BufferedPacket p = con::makePacket(address, reliable,
- m_connection->GetProtocolID(), m_connection->GetPeerID(),
- c.channelnum);
-
- toadd.push_back(p);
- }
-
- if (have_sequence_number) {
- volatile u16 pcount = 0;
- while(toadd.size() > 0) {
- BufferedPacket p = toadd.pop_front();
-// LOG(dout_con<<connection->getDesc()
-// << " queuing reliable packet for peer_id: " << c.peer_id
-// << " channel: " << (c.channelnum&0xFF)
-// << " seqnum: " << readU16(&p.data[BASE_HEADER_SIZE+1])
-// << std::endl)
- channels[c.channelnum].queued_reliables.push_back(p);
- pcount++;
- }
- assert(channels[c.channelnum].queued_reliables.size() < 0xFFFF);
- return true;
- }
- else {
- volatile u16 packets_available = toadd.size();
- /* we didn't get a single sequence number no need to fill queue */
- if (!have_initial_sequence_number)
- {
- return false;
- }
- while(toadd.size() > 0) {
- /* remove packet */
- toadd.pop_front();
-
- bool successfully_put_back_sequence_number
- = channels[c.channelnum].putBackSequenceNumber(
- (initial_sequence_number+toadd.size() % (SEQNUM_MAX+1)));
-
- assert(successfully_put_back_sequence_number);
- }
- LOG(dout_con<<m_connection->getDesc()
- << " Windowsize exceeded on reliable sending "
- << c.data.getSize() << " bytes"
- << std::endl << "\t\tinitial_sequence_number: "
- << initial_sequence_number
- << std::endl << "\t\tgot at most : "
- << packets_available << " packets"
- << std::endl << "\t\tpackets queued : "
- << channels[c.channelnum].outgoing_reliables_sent.size()
- << std::endl);
- return false;
- }
-}
-
-void UDPPeer::RunCommandQueues(
- unsigned int max_packet_size,
- unsigned int maxcommands,
- unsigned int maxtransfer)
-{
-
- for (unsigned int i = 0; i < CHANNEL_COUNT; i++)
- {
- unsigned int commands_processed = 0;
-
- if ((channels[i].queued_commands.size() > 0) &&
- (channels[i].queued_reliables.size() < maxtransfer) &&
- (commands_processed < maxcommands))
- {
- try {
- ConnectionCommand c = channels[i].queued_commands.pop_front();
- LOG(dout_con<<m_connection->getDesc()
- <<" processing queued reliable command "<<std::endl);
- if (!processReliableSendCommand(c,max_packet_size)) {
- LOG(dout_con<<m_connection->getDesc()
- << " Failed to queue packets for peer_id: " << c.peer_id
- << ", delaying sending of " << c.data.getSize()
- << " bytes" << std::endl);
- channels[i].queued_commands.push_front(c);
- }
- }
- catch (ItemNotFoundException &e) {
- // intentionally empty
- }
- }
- }
-}
-
-u16 UDPPeer::getNextSplitSequenceNumber(u8 channel)
-{
- assert(channel < CHANNEL_COUNT);
- return channels[channel].readNextIncomingSeqNum();
-}
-
-void UDPPeer::setNextSplitSequenceNumber(u8 channel, u16 seqnum)
-{
- assert(channel < CHANNEL_COUNT);
- channels[channel].setNextSplitSeqNum(seqnum);
-}
-
-SharedBuffer<u8> UDPPeer::addSpiltPacket(u8 channel,
- BufferedPacket toadd,
- bool reliable)
-{
- assert(channel < CHANNEL_COUNT);
- return channels[channel].incoming_splits.insert(toadd,reliable);
-}
-
-/******************************************************************************/
-/* Connection Threads */
-/******************************************************************************/
-
-ConnectionSendThread::ConnectionSendThread( unsigned int max_packet_size,
- float timeout) :
- m_connection(NULL),
- m_max_packet_size(max_packet_size),
- m_timeout(timeout),
- m_max_commands_per_iteration(1),
- m_max_data_packets_per_iteration(g_settings->getU16("max_packets_per_iteration")),
- m_max_packets_requeued(256)
-{
-}
-
-void * ConnectionSendThread::Thread()
-{
- assert(m_connection != NULL);
- ThreadStarted();
- log_register_thread("ConnectionSend");
-
- LOG(dout_con<<m_connection->getDesc()
- <<"ConnectionSend thread started"<<std::endl);
-
- u32 curtime = porting::getTimeMs();
- u32 lasttime = curtime;
-
- PROFILE(std::stringstream ThreadIdentifier);
- PROFILE(ThreadIdentifier << "ConnectionSend: [" << m_connection->getDesc() << "]");
-
- porting::setThreadName("ConnectionSend");
-
- /* if stop is requested don't stop immediately but try to send all */
- /* packets first */
- while(!StopRequested() || packetsQueued()) {
- BEGIN_DEBUG_EXCEPTION_HANDLER
- PROFILE(ScopeProfiler sp(g_profiler, ThreadIdentifier.str(), SPT_AVG));
-
- m_iteration_packets_avaialble = m_max_data_packets_per_iteration;
-
- /* wait for trigger or timeout */
- m_send_sleep_semaphore.Wait(50);
-
- /* remove all triggers */
- while(m_send_sleep_semaphore.Wait(0)) {}
-
- lasttime = curtime;
- curtime = porting::getTimeMs();
- float dtime = CALC_DTIME(lasttime,curtime);
-
- /* first do all the reliable stuff */
- runTimeouts(dtime);
-
- /* translate commands to packets */
- ConnectionCommand c = m_connection->m_command_queue.pop_frontNoEx(0);
- while(c.type != CONNCMD_NONE)
- {
- if (c.reliable)
- processReliableCommand(c);
- else
- processNonReliableCommand(c);
-
- c = m_connection->m_command_queue.pop_frontNoEx(0);
- }
-
- /* send non reliable packets */
- sendPackets(dtime);
-
- END_DEBUG_EXCEPTION_HANDLER(errorstream);
- }
-
- PROFILE(g_profiler->remove(ThreadIdentifier.str()));
- return NULL;
-}
-
-void ConnectionSendThread::Trigger()
-{
- m_send_sleep_semaphore.Post();
-}
-
-bool ConnectionSendThread::packetsQueued()
-{
- std::list<u16> peerIds = m_connection->getPeerIDs();
-
- if (!m_outgoing_queue.empty() && !peerIds.empty())
- return true;
-
- for(std::list<u16>::iterator j = peerIds.begin();
- j != peerIds.end(); ++j)
- {
- PeerHelper peer = m_connection->getPeerNoEx(*j);
-
- if (!peer)
- continue;
-
- if (dynamic_cast<UDPPeer*>(&peer) == 0)
- continue;
-
- for(u16 i=0; i<CHANNEL_COUNT; i++)
- {
- Channel *channel = &(dynamic_cast<UDPPeer*>(&peer))->channels[i];
-
- if (channel->queued_commands.size() > 0)
- {
- return true;
- }
- }
- }
-
-
- return false;
-}
-
-void ConnectionSendThread::runTimeouts(float dtime)
-{
- std::list<u16> timeouted_peers;
- std::list<u16> peerIds = m_connection->getPeerIDs();
-
- for(std::list<u16>::iterator j = peerIds.begin();
- j != peerIds.end(); ++j)
- {
- PeerHelper peer = m_connection->getPeerNoEx(*j);
-
- if (!peer)
- continue;
-
- if(dynamic_cast<UDPPeer*>(&peer) == 0)
- continue;
-
- PROFILE(std::stringstream peerIdentifier);
- PROFILE(peerIdentifier << "runTimeouts[" << m_connection->getDesc()
- << ";" << *j << ";RELIABLE]");
- PROFILE(ScopeProfiler peerprofiler(g_profiler, peerIdentifier.str(), SPT_AVG));
-
- SharedBuffer<u8> data(2); // data for sending ping, required here because of goto
-
- /*
- Check peer timeout
- */
- if(peer->isTimedOut(m_timeout))
- {
- infostream<<m_connection->getDesc()
- <<"RunTimeouts(): Peer "<<peer->id
- <<" has timed out."
- <<" (source=peer->timeout_counter)"
- <<std::endl;
- // Add peer to the list
- timeouted_peers.push_back(peer->id);
- // Don't bother going through the buffers of this one
- continue;
- }
-
- float resend_timeout = dynamic_cast<UDPPeer*>(&peer)->getResendTimeout();
- for(u16 i=0; i<CHANNEL_COUNT; i++)
- {
- std::list<BufferedPacket> timed_outs;
- Channel *channel = &(dynamic_cast<UDPPeer*>(&peer))->channels[i];
-
- if (dynamic_cast<UDPPeer*>(&peer)->getLegacyPeer())
- channel->setWindowSize(g_settings->getU16("workaround_window_size"));
-
- // Remove timed out incomplete unreliable split packets
- channel->incoming_splits.removeUnreliableTimedOuts(dtime, m_timeout);
-
- // Increment reliable packet times
- channel->outgoing_reliables_sent.incrementTimeouts(dtime);
-
- unsigned int numpeers = m_connection->m_peers.size();
-
- if (numpeers == 0)
- return;
-
- // Re-send timed out outgoing reliables
- timed_outs = channel->
- outgoing_reliables_sent.getTimedOuts(resend_timeout,
- (m_max_data_packets_per_iteration/numpeers));
-
- channel->UpdatePacketLossCounter(timed_outs.size());
- g_profiler->graphAdd("packets_lost", timed_outs.size());
-
- m_iteration_packets_avaialble -= timed_outs.size();
-
- for(std::list<BufferedPacket>::iterator k = timed_outs.begin();
- k != timed_outs.end(); ++k)
- {
- u16 peer_id = readPeerId(*(k->data));
- u8 channelnum = readChannel(*(k->data));
- u16 seqnum = readU16(&(k->data[BASE_HEADER_SIZE+1]));
-
- channel->UpdateBytesLost(k->data.getSize());
- k->resend_count++;
-
- LOG(derr_con<<m_connection->getDesc()
- <<"RE-SENDING timed-out RELIABLE to "
- << k->address.serializeString()
- << "(t/o="<<resend_timeout<<"): "
- <<"from_peer_id="<<peer_id
- <<", channel="<<((int)channelnum&0xff)
- <<", seqnum="<<seqnum
- <<std::endl);
-
- rawSend(*k);
-
- // do not handle rtt here as we can't decide if this packet was
- // lost or really takes more time to transmit
- }
- channel->UpdateTimers(dtime,dynamic_cast<UDPPeer*>(&peer)->getLegacyPeer());
- }
-
- /* send ping if necessary */
- if (dynamic_cast<UDPPeer*>(&peer)->Ping(dtime,data)) {
- LOG(dout_con<<m_connection->getDesc()
- <<"Sending ping for peer_id: "
- << dynamic_cast<UDPPeer*>(&peer)->id <<std::endl);
- /* this may fail if there ain't a sequence number left */
- if (!rawSendAsPacket(dynamic_cast<UDPPeer*>(&peer)->id, 0, data, true))
- {
- //retrigger with reduced ping interval
- dynamic_cast<UDPPeer*>(&peer)->Ping(4.0,data);
- }
- }
-
- dynamic_cast<UDPPeer*>(&peer)->RunCommandQueues(m_max_packet_size,
- m_max_commands_per_iteration,
- m_max_packets_requeued);
- }
-
- // Remove timed out peers
- for(std::list<u16>::iterator i = timeouted_peers.begin();
- i != timeouted_peers.end(); ++i)
- {
- LOG(derr_con<<m_connection->getDesc()
- <<"RunTimeouts(): Removing peer "<<(*i)<<std::endl);
- m_connection->deletePeer(*i, true);
- }
-}
-
-void ConnectionSendThread::rawSend(const BufferedPacket &packet)
-{
- try{
- m_connection->m_udpSocket.Send(packet.address, *packet.data,
- packet.data.getSize());
- LOG(dout_con <<m_connection->getDesc()
- << " rawSend: " << packet.data.getSize()
- << " bytes sent" << std::endl);
- } catch(SendFailedException &e){
- LOG(derr_con<<m_connection->getDesc()
- <<"Connection::rawSend(): SendFailedException: "
- <<packet.address.serializeString()<<std::endl);
- }
-}
-
-void ConnectionSendThread::sendAsPacketReliable(BufferedPacket& p, Channel* channel)
-{
- try{
- p.absolute_send_time = porting::getTimeMs();
- // Buffer the packet
- channel->outgoing_reliables_sent.insert(p,
- (channel->readOutgoingSequenceNumber() - MAX_RELIABLE_WINDOW_SIZE)
- % (MAX_RELIABLE_WINDOW_SIZE+1));
- }
- catch(AlreadyExistsException &e)
- {
- LOG(derr_con<<m_connection->getDesc()
- <<"WARNING: Going to send a reliable packet"
- <<" in outgoing buffer" <<std::endl);
- //assert(0);
- }
-
- // Send the packet
- rawSend(p);
-}
-
-bool ConnectionSendThread::rawSendAsPacket(u16 peer_id, u8 channelnum,
- SharedBuffer<u8> data, bool reliable)
-{
- PeerHelper peer = m_connection->getPeerNoEx(peer_id);
- if(!peer) {
- LOG(dout_con<<m_connection->getDesc()
- <<" INFO: dropped packet for non existent peer_id: "
- << peer_id << std::endl);
- assert(reliable && "trying to send raw packet reliable but no peer found!");
- return false;
- }
- Channel *channel = &(dynamic_cast<UDPPeer*>(&peer)->channels[channelnum]);
-
- if(reliable)
- {
- bool have_sequence_number_for_raw_packet = true;
- u16 seqnum =
- channel->getOutgoingSequenceNumber(have_sequence_number_for_raw_packet);
-
- if (!have_sequence_number_for_raw_packet)
- return false;
-
- SharedBuffer<u8> reliable = makeReliablePacket(data, seqnum);
- Address peer_address;
- peer->getAddress(MTP_MINETEST_RELIABLE_UDP, peer_address);
-
- // Add base headers and make a packet
- BufferedPacket p = con::makePacket(peer_address, reliable,
- m_connection->GetProtocolID(), m_connection->GetPeerID(),
- channelnum);
-
- // first check if our send window is already maxed out
- if (channel->outgoing_reliables_sent.size()
- < channel->getWindowSize()) {
- LOG(dout_con<<m_connection->getDesc()
- <<" INFO: sending a reliable packet to peer_id " << peer_id
- <<" channel: " << channelnum
- <<" seqnum: " << seqnum << std::endl);
- sendAsPacketReliable(p,channel);
- return true;
- }
- else {
- LOG(dout_con<<m_connection->getDesc()
- <<" INFO: queueing reliable packet for peer_id: " << peer_id
- <<" channel: " << channelnum
- <<" seqnum: " << seqnum << std::endl);
- channel->queued_reliables.push_back(p);
- return false;
- }
- }
- else
- {
- Address peer_address;
-
- if (peer->getAddress(MTP_UDP, peer_address))
- {
- // Add base headers and make a packet
- BufferedPacket p = con::makePacket(peer_address, data,
- m_connection->GetProtocolID(), m_connection->GetPeerID(),
- channelnum);
-
- // Send the packet
- rawSend(p);
- return true;
- }
- else {
- LOG(dout_con<<m_connection->getDesc()
- <<" INFO: dropped unreliable packet for peer_id: " << peer_id
- <<" because of (yet) missing udp address" << std::endl);
- return false;
- }
- }
-
- //never reached
- return false;
-}
-
-void ConnectionSendThread::processReliableCommand(ConnectionCommand &c)
-{
- assert(c.reliable);
-
- switch(c.type){
- case CONNCMD_NONE:
- LOG(dout_con<<m_connection->getDesc()
- <<"UDP processing reliable CONNCMD_NONE"<<std::endl);
- return;
-
- case CONNCMD_SEND:
- LOG(dout_con<<m_connection->getDesc()
- <<"UDP processing reliable CONNCMD_SEND"<<std::endl);
- sendReliable(c);
- return;
-
- case CONNCMD_SEND_TO_ALL:
- LOG(dout_con<<m_connection->getDesc()
- <<"UDP processing CONNCMD_SEND_TO_ALL"<<std::endl);
- sendToAllReliable(c);
- return;
-
- case CONCMD_CREATE_PEER:
- LOG(dout_con<<m_connection->getDesc()
- <<"UDP processing reliable CONCMD_CREATE_PEER"<<std::endl);
- if (!rawSendAsPacket(c.peer_id,c.channelnum,c.data,c.reliable))
- {
- /* put to queue if we couldn't send it immediately */
- sendReliable(c);
- }
- return;
-
- case CONCMD_DISABLE_LEGACY:
- LOG(dout_con<<m_connection->getDesc()
- <<"UDP processing reliable CONCMD_DISABLE_LEGACY"<<std::endl);
- if (!rawSendAsPacket(c.peer_id,c.channelnum,c.data,c.reliable))
- {
- /* put to queue if we couldn't send it immediately */
- sendReliable(c);
- }
- return;
-
- case CONNCMD_SERVE:
- case CONNCMD_CONNECT:
- case CONNCMD_DISCONNECT:
- case CONCMD_ACK:
- assert("Got command that shouldn't be reliable as reliable command" == 0);
- default:
- LOG(dout_con<<m_connection->getDesc()
- <<" Invalid reliable command type: " << c.type <<std::endl);
- }
-}
-
-
-void ConnectionSendThread::processNonReliableCommand(ConnectionCommand &c)
-{
- assert(!c.reliable);
-
- switch(c.type){
- case CONNCMD_NONE:
- LOG(dout_con<<m_connection->getDesc()
- <<" UDP processing CONNCMD_NONE"<<std::endl);
- return;
- case CONNCMD_SERVE:
- LOG(dout_con<<m_connection->getDesc()
- <<" UDP processing CONNCMD_SERVE port="
- <<c.address.serializeString()<<std::endl);
- serve(c.address);
- return;
- case CONNCMD_CONNECT:
- LOG(dout_con<<m_connection->getDesc()
- <<" UDP processing CONNCMD_CONNECT"<<std::endl);
- connect(c.address);
- return;
- case CONNCMD_DISCONNECT:
- LOG(dout_con<<m_connection->getDesc()
- <<" UDP processing CONNCMD_DISCONNECT"<<std::endl);
- disconnect();
- return;
- case CONNCMD_DISCONNECT_PEER:
- LOG(dout_con<<m_connection->getDesc()
- <<" UDP processing CONNCMD_DISCONNECT_PEER"<<std::endl);
- disconnect_peer(c.peer_id);
- return;
- case CONNCMD_SEND:
- LOG(dout_con<<m_connection->getDesc()
- <<" UDP processing CONNCMD_SEND"<<std::endl);
- send(c.peer_id, c.channelnum, c.data);
- return;
- case CONNCMD_SEND_TO_ALL:
- LOG(dout_con<<m_connection->getDesc()
- <<" UDP processing CONNCMD_SEND_TO_ALL"<<std::endl);
- sendToAll(c.channelnum, c.data);
- return;
- case CONCMD_ACK:
- LOG(dout_con<<m_connection->getDesc()
- <<" UDP processing CONCMD_ACK"<<std::endl);
- sendAsPacket(c.peer_id,c.channelnum,c.data,true);
- return;
- case CONCMD_CREATE_PEER:
- assert("Got command that should be reliable as unreliable command" == 0);
- default:
- LOG(dout_con<<m_connection->getDesc()
- <<" Invalid command type: " << c.type <<std::endl);
- }
-}
-
-void ConnectionSendThread::serve(Address bind_address)
-{
- LOG(dout_con<<m_connection->getDesc()
- <<"UDP serving at port " << bind_address.serializeString() <<std::endl);
- try{
- m_connection->m_udpSocket.Bind(bind_address);
- m_connection->SetPeerID(PEER_ID_SERVER);
- }
- catch(SocketException &e){
- // Create event
- ConnectionEvent ce;
- ce.bindFailed();
- m_connection->putEvent(ce);
- }
-}
-
-void ConnectionSendThread::connect(Address address)
-{
- LOG(dout_con<<m_connection->getDesc()<<" connecting to "<<address.serializeString()
- <<":"<<address.getPort()<<std::endl);
-
- UDPPeer *peer = m_connection->createServerPeer(address);
-
- // Create event
- ConnectionEvent e;
- e.peerAdded(peer->id, peer->address);
- m_connection->putEvent(e);
-
- Address bind_addr;
-
- if (address.isIPv6())
- bind_addr.setAddress((IPv6AddressBytes*) NULL);
- else
- bind_addr.setAddress(0,0,0,0);
-
- m_connection->m_udpSocket.Bind(bind_addr);
-
- // Send a dummy packet to server with peer_id = PEER_ID_INEXISTENT
- m_connection->SetPeerID(PEER_ID_INEXISTENT);
- SharedBuffer<u8> data(0);
- m_connection->Send(PEER_ID_SERVER, 0, data, true);
-}
-
-void ConnectionSendThread::disconnect()
-{
- LOG(dout_con<<m_connection->getDesc()<<" disconnecting"<<std::endl);
-
- // Create and send DISCO packet
- SharedBuffer<u8> data(2);
- writeU8(&data[0], TYPE_CONTROL);
- writeU8(&data[1], CONTROLTYPE_DISCO);
-
-
- // Send to all
- std::list<u16> peerids = m_connection->getPeerIDs();
-
- for (std::list<u16>::iterator i = peerids.begin();
- i != peerids.end();
- i++)
- {
- sendAsPacket(*i, 0,data,false);
- }
-}
-
-void ConnectionSendThread::disconnect_peer(u16 peer_id)
-{
- LOG(dout_con<<m_connection->getDesc()<<" disconnecting peer"<<std::endl);
-
- // Create and send DISCO packet
- SharedBuffer<u8> data(2);
- writeU8(&data[0], TYPE_CONTROL);
- writeU8(&data[1], CONTROLTYPE_DISCO);
- sendAsPacket(peer_id, 0,data,false);
-
- PeerHelper peer = m_connection->getPeerNoEx(peer_id);
-
- if (!peer)
- return;
-
- if (dynamic_cast<UDPPeer*>(&peer) == 0)
- {
- return;
- }
-
- dynamic_cast<UDPPeer*>(&peer)->m_pending_disconnect = true;
-}
-
-void ConnectionSendThread::send(u16 peer_id, u8 channelnum,
- SharedBuffer<u8> data)
-{
- assert(channelnum < CHANNEL_COUNT);
-
- PeerHelper peer = m_connection->getPeerNoEx(peer_id);
- if(!peer)
- {
- LOG(dout_con<<m_connection->getDesc()<<" peer: peer_id="<<peer_id
- << ">>>NOT<<< found on sending packet"
- << ", channel " << (channelnum % 0xFF)
- << ", size: " << data.getSize() <<std::endl);
- return;
- }
-
- LOG(dout_con<<m_connection->getDesc()<<" sending to peer_id="<<peer_id
- << ", channel " << (channelnum % 0xFF)
- << ", size: " << data.getSize() <<std::endl);
-
- u16 split_sequence_number = peer->getNextSplitSequenceNumber(channelnum);
-
- u32 chunksize_max = m_max_packet_size - BASE_HEADER_SIZE;
- std::list<SharedBuffer<u8> > originals;
-
- originals = makeAutoSplitPacket(data, chunksize_max,split_sequence_number);
-
- peer->setNextSplitSequenceNumber(channelnum,split_sequence_number);
-
- for(std::list<SharedBuffer<u8> >::iterator i = originals.begin();
- i != originals.end(); ++i)
- {
- SharedBuffer<u8> original = *i;
- sendAsPacket(peer_id, channelnum, original);
- }
-}
-
-void ConnectionSendThread::sendReliable(ConnectionCommand &c)
-{
- PeerHelper peer = m_connection->getPeerNoEx(c.peer_id);
- if (!peer)
- return;
-
- peer->PutReliableSendCommand(c,m_max_packet_size);
-}
-
-void ConnectionSendThread::sendToAll(u8 channelnum, SharedBuffer<u8> data)
-{
- std::list<u16> peerids = m_connection->getPeerIDs();
-
- for (std::list<u16>::iterator i = peerids.begin();
- i != peerids.end();
- i++)
- {
- send(*i, channelnum, data);
- }
-}
-
-void ConnectionSendThread::sendToAllReliable(ConnectionCommand &c)
-{
- std::list<u16> peerids = m_connection->getPeerIDs();
-
- for (std::list<u16>::iterator i = peerids.begin();
- i != peerids.end();
- i++)
- {
- PeerHelper peer = m_connection->getPeerNoEx(*i);
-
- if (!peer)
- continue;
-
- peer->PutReliableSendCommand(c,m_max_packet_size);
- }
-}
-
-void ConnectionSendThread::sendPackets(float dtime)
-{
- std::list<u16> peerIds = m_connection->getPeerIDs();
- std::list<u16> pendingDisconnect;
- std::map<u16,bool> pending_unreliable;
-
- for(std::list<u16>::iterator
- j = peerIds.begin();
- j != peerIds.end(); ++j)
- {
- PeerHelper peer = m_connection->getPeerNoEx(*j);
- //peer may have been removed
- if (!peer) {
- LOG(dout_con<<m_connection->getDesc()<< " Peer not found: peer_id=" << *j << std::endl);
- continue;
- }
- peer->m_increment_packets_remaining = m_iteration_packets_avaialble/m_connection->m_peers.size();
-
- if (dynamic_cast<UDPPeer*>(&peer) == 0)
- {
- continue;
- }
-
- if (dynamic_cast<UDPPeer*>(&peer)->m_pending_disconnect)
- {
- pendingDisconnect.push_back(*j);
- }
-
- PROFILE(std::stringstream peerIdentifier);
- PROFILE(peerIdentifier << "sendPackets[" << m_connection->getDesc() << ";" << *j << ";RELIABLE]");
- PROFILE(ScopeProfiler peerprofiler(g_profiler, peerIdentifier.str(), SPT_AVG));
-
- LOG(dout_con<<m_connection->getDesc()
- << " Handle per peer queues: peer_id=" << *j
- << " packet quota: " << peer->m_increment_packets_remaining << std::endl);
- // first send queued reliable packets for all peers (if possible)
- for (unsigned int i=0; i < CHANNEL_COUNT; i++)
- {
- u16 next_to_ack = 0;
- dynamic_cast<UDPPeer*>(&peer)->channels[i].outgoing_reliables_sent.getFirstSeqnum(next_to_ack);
- u16 next_to_receive = 0;
- dynamic_cast<UDPPeer*>(&peer)->channels[i].incoming_reliables.getFirstSeqnum(next_to_receive);
-
- LOG(dout_con<<m_connection->getDesc()<< "\t channel: "
- << i << ", peer quota:"
- << peer->m_increment_packets_remaining
- << std::endl
- << "\t\t\treliables on wire: "
- << dynamic_cast<UDPPeer*>(&peer)->channels[i].outgoing_reliables_sent.size()
- << ", waiting for ack for " << next_to_ack
- << std::endl
- << "\t\t\tincoming_reliables: "
- << dynamic_cast<UDPPeer*>(&peer)->channels[i].incoming_reliables.size()
- << ", next reliable packet: "
- << dynamic_cast<UDPPeer*>(&peer)->channels[i].readNextIncomingSeqNum()
- << ", next queued: " << next_to_receive
- << std::endl
- << "\t\t\treliables queued : "
- << dynamic_cast<UDPPeer*>(&peer)->channels[i].queued_reliables.size()
- << std::endl
- << "\t\t\tqueued commands : "
- << dynamic_cast<UDPPeer*>(&peer)->channels[i].queued_commands.size()
- << std::endl);
-
- while ((dynamic_cast<UDPPeer*>(&peer)->channels[i].queued_reliables.size() > 0) &&
- (dynamic_cast<UDPPeer*>(&peer)->channels[i].outgoing_reliables_sent.size()
- < dynamic_cast<UDPPeer*>(&peer)->channels[i].getWindowSize())&&
- (peer->m_increment_packets_remaining > 0))
- {
- BufferedPacket p = dynamic_cast<UDPPeer*>(&peer)->channels[i].queued_reliables.pop_front();
- Channel* channel = &(dynamic_cast<UDPPeer*>(&peer)->channels[i]);
- LOG(dout_con<<m_connection->getDesc()
- <<" INFO: sending a queued reliable packet "
- <<" channel: " << i
- <<", seqnum: " << readU16(&p.data[BASE_HEADER_SIZE+1])
- << std::endl);
- sendAsPacketReliable(p,channel);
- peer->m_increment_packets_remaining--;
- }
- }
- }
-
- if (m_outgoing_queue.size())
- {
- LOG(dout_con<<m_connection->getDesc()
- << " Handle non reliable queue ("
- << m_outgoing_queue.size() << " pkts)" << std::endl);
- }
-
- unsigned int initial_queuesize = m_outgoing_queue.size();
- /* send non reliable packets*/
- for(unsigned int i=0;i < initial_queuesize;i++) {
- OutgoingPacket packet = m_outgoing_queue.pop_front();
-
- assert(!packet.reliable &&
- "reliable packets are not allowed in outgoing queue!");
-
- PeerHelper peer = m_connection->getPeerNoEx(packet.peer_id);
- if(!peer) {
- LOG(dout_con<<m_connection->getDesc()
- <<" Outgoing queue: peer_id="<<packet.peer_id
- << ">>>NOT<<< found on sending packet"
- << ", channel " << (packet.channelnum % 0xFF)
- << ", size: " << packet.data.getSize() <<std::endl);
- continue;
- }
- /* send acks immediately */
- else if (packet.ack)
- {
- rawSendAsPacket(packet.peer_id, packet.channelnum,
- packet.data, packet.reliable);
- peer->m_increment_packets_remaining =
- MYMIN(0,peer->m_increment_packets_remaining--);
- }
- else if (
- ( peer->m_increment_packets_remaining > 0) ||
- (StopRequested())){
- rawSendAsPacket(packet.peer_id, packet.channelnum,
- packet.data, packet.reliable);
- peer->m_increment_packets_remaining--;
- }
- else {
- m_outgoing_queue.push_back(packet);
- pending_unreliable[packet.peer_id] = true;
- }
- }
-
- for(std::list<u16>::iterator
- k = pendingDisconnect.begin();
- k != pendingDisconnect.end(); ++k)
- {
- if (!pending_unreliable[*k])
- {
- m_connection->deletePeer(*k,false);
- }
- }
-}
-
-void ConnectionSendThread::sendAsPacket(u16 peer_id, u8 channelnum,
- SharedBuffer<u8> data, bool ack)
-{
- OutgoingPacket packet(peer_id, channelnum, data, false, ack);
- m_outgoing_queue.push_back(packet);
-}
-
-ConnectionReceiveThread::ConnectionReceiveThread(unsigned int max_packet_size) :
- m_connection(NULL)
-{
-}
-
-void * ConnectionReceiveThread::Thread()
-{
- assert(m_connection != NULL);
- ThreadStarted();
- log_register_thread("ConnectionReceive");
-
- LOG(dout_con<<m_connection->getDesc()
- <<"ConnectionReceive thread started"<<std::endl);
-
- PROFILE(std::stringstream ThreadIdentifier);
- PROFILE(ThreadIdentifier << "ConnectionReceive: [" << m_connection->getDesc() << "]");
-
- porting::setThreadName("ConnectionReceive");
-
-#ifdef DEBUG_CONNECTION_KBPS
- u32 curtime = porting::getTimeMs();
- u32 lasttime = curtime;
- float debug_print_timer = 0.0;
-#endif
-
- while(!StopRequested()) {
- BEGIN_DEBUG_EXCEPTION_HANDLER
- PROFILE(ScopeProfiler sp(g_profiler, ThreadIdentifier.str(), SPT_AVG));
-
-#ifdef DEBUG_CONNECTION_KBPS
- lasttime = curtime;
- curtime = porting::getTimeMs();
- float dtime = CALC_DTIME(lasttime,curtime);
-#endif
-
- /* receive packets */
- receive();
-
-#ifdef DEBUG_CONNECTION_KBPS
- debug_print_timer += dtime;
- if (debug_print_timer > 20.0) {
- debug_print_timer -= 20.0;
-
- std::list<u16> peerids = m_connection->getPeerIDs();
-
- for (std::list<u16>::iterator i = peerids.begin();
- i != peerids.end();
- i++)
- {
- PeerHelper peer = m_connection->getPeerNoEx(*i);
- if (!peer)
- continue;
-
- float peer_current = 0.0;
- float peer_loss = 0.0;
- float avg_rate = 0.0;
- float avg_loss = 0.0;
-
- for(u16 j=0; j<CHANNEL_COUNT; j++)
- {
- peer_current +=peer->channels[j].getCurrentDownloadRateKB();
- peer_loss += peer->channels[j].getCurrentLossRateKB();
- avg_rate += peer->channels[j].getAvgDownloadRateKB();
- avg_loss += peer->channels[j].getAvgLossRateKB();
- }
-
- std::stringstream output;
- output << std::fixed << std::setprecision(1);
- output << "OUT to Peer " << *i << " RATES (good / loss) " << std::endl;
- output << "\tcurrent (sum): " << peer_current << "kb/s "<< peer_loss << "kb/s" << std::endl;
- output << "\taverage (sum): " << avg_rate << "kb/s "<< avg_loss << "kb/s" << std::endl;
- output << std::setfill(' ');
- for(u16 j=0; j<CHANNEL_COUNT; j++)
- {
- output << "\tcha " << j << ":"
- << " CUR: " << std::setw(6) << peer->channels[j].getCurrentDownloadRateKB() <<"kb/s"
- << " AVG: " << std::setw(6) << peer->channels[j].getAvgDownloadRateKB() <<"kb/s"
- << " MAX: " << std::setw(6) << peer->channels[j].getMaxDownloadRateKB() <<"kb/s"
- << " /"
- << " CUR: " << std::setw(6) << peer->channels[j].getCurrentLossRateKB() <<"kb/s"
- << " AVG: " << std::setw(6) << peer->channels[j].getAvgLossRateKB() <<"kb/s"
- << " MAX: " << std::setw(6) << peer->channels[j].getMaxLossRateKB() <<"kb/s"
- << " / WS: " << peer->channels[j].getWindowSize()
- << std::endl;
- }
-
- fprintf(stderr,"%s\n",output.str().c_str());
- }
- }
-#endif
- END_DEBUG_EXCEPTION_HANDLER(errorstream);
- }
- PROFILE(g_profiler->remove(ThreadIdentifier.str()));
- return NULL;
-}
-
-// Receive packets from the network and buffers and create ConnectionEvents
-void ConnectionReceiveThread::receive()
-{
- // use IPv6 minimum allowed MTU as receive buffer size as this is
- // theoretical reliable upper boundary of a udp packet for all IPv6 enabled
- // infrastructure
- unsigned int packet_maxsize = 1500;
- SharedBuffer<u8> packetdata(packet_maxsize);
-
- bool packet_queued = true;
-
- unsigned int loop_count = 0;
-
- /* first of all read packets from socket */
- /* check for incoming data available */
- while( (loop_count < 10) &&
- (m_connection->m_udpSocket.WaitData(50)))
- {
- loop_count++;
- try{
- if (packet_queued)
- {
- bool no_data_left = false;
- u16 peer_id;
- SharedBuffer<u8> resultdata;
- while(!no_data_left)
- {
- try {
- no_data_left = !getFromBuffers(peer_id, resultdata);
- if (!no_data_left) {
- ConnectionEvent e;
- e.dataReceived(peer_id, resultdata);
- m_connection->putEvent(e);
- }
- }
- catch(ProcessedSilentlyException &e) {
- /* try reading again */
- }
- }
- packet_queued = false;
- }
-
- Address sender;
- s32 received_size = m_connection->m_udpSocket.Receive(sender, *packetdata, packet_maxsize);
-
- if ((received_size < 0) ||
- (received_size < BASE_HEADER_SIZE) ||
- (readU32(&packetdata[0]) != m_connection->GetProtocolID()))
- {
- LOG(derr_con<<m_connection->getDesc()
- <<"Receive(): Invalid incoming packet, "
- <<"size: " << received_size
- <<", protocol: "
- << ((received_size >= 4) ? readU32(&packetdata[0]) : -1)
- << std::endl);
- continue;
- }
-
- u16 peer_id = readPeerId(*packetdata);
- u8 channelnum = readChannel(*packetdata);
-
- if(channelnum > CHANNEL_COUNT-1){
- LOG(derr_con<<m_connection->getDesc()
- <<"Receive(): Invalid channel "<<channelnum<<std::endl);
- throw InvalidIncomingDataException("Channel doesn't exist");
- }
-
- /* preserve original peer_id for later usage */
- u16 packet_peer_id = peer_id;
-
- /* Try to identify peer by sender address (may happen on join) */
- if(peer_id == PEER_ID_INEXISTENT)
- {
- peer_id = m_connection->lookupPeer(sender);
- }
-
- /* The peer was not found in our lists. Add it. */
- if(peer_id == PEER_ID_INEXISTENT)
- {
- peer_id = m_connection->createPeer(sender, MTP_MINETEST_RELIABLE_UDP, 0);
- }
-
- PeerHelper peer = m_connection->getPeerNoEx(peer_id);
-
- if (!peer) {
- LOG(dout_con<<m_connection->getDesc()
- <<" got packet from unknown peer_id: "
- <<peer_id<<" Ignoring."<<std::endl);
- continue;
- }
-
- // Validate peer address
-
- Address peer_address;
-
- if (peer->getAddress(MTP_UDP, peer_address)) {
- if (peer_address != sender) {
- LOG(derr_con<<m_connection->getDesc()
- <<m_connection->getDesc()
- <<" Peer "<<peer_id<<" sending from different address."
- " Ignoring."<<std::endl);
- continue;
- }
- }
- else {
-
- bool invalid_address = true;
- if (invalid_address) {
- LOG(derr_con<<m_connection->getDesc()
- <<m_connection->getDesc()
- <<" Peer "<<peer_id<<" unknown."
- " Ignoring."<<std::endl);
- continue;
- }
- }
-
-
- /* mark peer as seen with id */
- if (!(packet_peer_id == PEER_ID_INEXISTENT))
- peer->setSentWithID();
-
- peer->ResetTimeout();
-
- Channel *channel = 0;
-
- if (dynamic_cast<UDPPeer*>(&peer) != 0)
- {
- channel = &(dynamic_cast<UDPPeer*>(&peer)->channels[channelnum]);
- }
-
- if (channel != 0) {
- channel->UpdateBytesReceived(received_size);
- }
-
- // Throw the received packet to channel->processPacket()
-
- // Make a new SharedBuffer from the data without the base headers
- SharedBuffer<u8> strippeddata(received_size - BASE_HEADER_SIZE);
- memcpy(*strippeddata, &packetdata[BASE_HEADER_SIZE],
- strippeddata.getSize());
-
- try{
- // Process it (the result is some data with no headers made by us)
- SharedBuffer<u8> resultdata = processPacket
- (channel, strippeddata, peer_id, channelnum, false);
-
- LOG(dout_con<<m_connection->getDesc()
- <<" ProcessPacket from peer_id: " << peer_id
- << ",channel: " << (channelnum & 0xFF) << ", returned "
- << resultdata.getSize() << " bytes" <<std::endl);
-
- ConnectionEvent e;
- e.dataReceived(peer_id, resultdata);
- m_connection->putEvent(e);
- }catch(ProcessedSilentlyException &e){
- }catch(ProcessedQueued &e){
- packet_queued = true;
- }
- }catch(InvalidIncomingDataException &e){
- }
- catch(ProcessedSilentlyException &e){
- }
- }
-}
-
-bool ConnectionReceiveThread::getFromBuffers(u16 &peer_id, SharedBuffer<u8> &dst)
-{
- std::list<u16> peerids = m_connection->getPeerIDs();
-
- for(std::list<u16>::iterator j = peerids.begin();
- j != peerids.end(); ++j)
- {
- PeerHelper peer = m_connection->getPeerNoEx(*j);
- if (!peer)
- continue;
-
- if(dynamic_cast<UDPPeer*>(&peer) == 0)
- continue;
-
- for(u16 i=0; i<CHANNEL_COUNT; i++)
- {
- Channel *channel = &(dynamic_cast<UDPPeer*>(&peer))->channels[i];
-
- SharedBuffer<u8> resultdata;
- bool got = checkIncomingBuffers(channel, peer_id, resultdata);
- if(got){
- dst = resultdata;
- return true;
- }
- }
- }
- return false;
-}
-
-bool ConnectionReceiveThread::checkIncomingBuffers(Channel *channel,
- u16 &peer_id, SharedBuffer<u8> &dst)
-{
- u16 firstseqnum = 0;
- if (channel->incoming_reliables.getFirstSeqnum(firstseqnum))
- {
- if(firstseqnum == channel->readNextIncomingSeqNum())
- {
- BufferedPacket p = channel->incoming_reliables.popFirst();
- peer_id = readPeerId(*p.data);
- u8 channelnum = readChannel(*p.data);
- u16 seqnum = readU16(&p.data[BASE_HEADER_SIZE+1]);
-
- LOG(dout_con<<m_connection->getDesc()
- <<"UNBUFFERING TYPE_RELIABLE"
- <<" seqnum="<<seqnum
- <<" peer_id="<<peer_id
- <<" channel="<<((int)channelnum&0xff)
- <<std::endl);
-
- channel->incNextIncomingSeqNum();
-
- u32 headers_size = BASE_HEADER_SIZE + RELIABLE_HEADER_SIZE;
- // Get out the inside packet and re-process it
- SharedBuffer<u8> payload(p.data.getSize() - headers_size);
- memcpy(*payload, &p.data[headers_size], payload.getSize());
-
- dst = processPacket(channel, payload, peer_id, channelnum, true);
- return true;
- }
- }
- return false;
-}
-
-SharedBuffer<u8> ConnectionReceiveThread::processPacket(Channel *channel,
- SharedBuffer<u8> packetdata, u16 peer_id, u8 channelnum, bool reliable)
-{
- PeerHelper peer = m_connection->getPeerNoEx(peer_id);
-
- if (!peer) {
- errorstream << "Peer not found (possible timeout)" << std::endl;
- throw ProcessedSilentlyException("Peer not found (possible timeout)");
- }
-
- if(packetdata.getSize() < 1)
- throw InvalidIncomingDataException("packetdata.getSize() < 1");
-
- u8 type = readU8(&(packetdata[0]));
-
- if (MAX_UDP_PEERS <= 65535 && peer_id >= MAX_UDP_PEERS) {
- errorstream << "Something is wrong with peer_id" << std::endl;
- assert(0);
- }
-
- if(type == TYPE_CONTROL)
- {
- if(packetdata.getSize() < 2)
- throw InvalidIncomingDataException("packetdata.getSize() < 2");
-
- u8 controltype = readU8(&(packetdata[1]));
-
- if(controltype == CONTROLTYPE_ACK)
- {
- assert(channel != 0);
- if(packetdata.getSize() < 4)
- throw InvalidIncomingDataException
- ("packetdata.getSize() < 4 (ACK header size)");
-
- u16 seqnum = readU16(&packetdata[2]);
- LOG(dout_con<<m_connection->getDesc()
- <<" [ CONTROLTYPE_ACK: channelnum="
- <<((int)channelnum&0xff)<<", peer_id="<<peer_id
- <<", seqnum="<<seqnum<< " ]"<<std::endl);
-
- try{
- BufferedPacket p =
- channel->outgoing_reliables_sent.popSeqnum(seqnum);
-
- // only calculate rtt from straight sent packets
- if (p.resend_count == 0) {
- // Get round trip time
- unsigned int current_time = porting::getTimeMs();
-
- // a overflow is quite unlikely but as it'd result in major
- // rtt miscalculation we handle it here
- if (current_time > p.absolute_send_time)
- {
- float rtt = (current_time - p.absolute_send_time) / 1000.0;
-
- // Let peer calculate stuff according to it
- // (avg_rtt and resend_timeout)
- dynamic_cast<UDPPeer*>(&peer)->reportRTT(rtt);
- }
- else if (p.totaltime > 0)
- {
- float rtt = p.totaltime;
-
- // Let peer calculate stuff according to it
- // (avg_rtt and resend_timeout)
- dynamic_cast<UDPPeer*>(&peer)->reportRTT(rtt);
- }
- }
- //put bytes for max bandwidth calculation
- channel->UpdateBytesSent(p.data.getSize(),1);
- if (channel->outgoing_reliables_sent.size() == 0)
- {
- m_connection->TriggerSend();
- }
- }
- catch(NotFoundException &e){
- LOG(derr_con<<m_connection->getDesc()
- <<"WARNING: ACKed packet not "
- "in outgoing queue"
- <<std::endl);
- channel->UpdatePacketTooLateCounter();
- }
- throw ProcessedSilentlyException("Got an ACK");
- }
- else if(controltype == CONTROLTYPE_SET_PEER_ID)
- {
- // Got a packet to set our peer id
- if(packetdata.getSize() < 4)
- throw InvalidIncomingDataException
- ("packetdata.getSize() < 4 (SET_PEER_ID header size)");
- u16 peer_id_new = readU16(&packetdata[2]);
- LOG(dout_con<<m_connection->getDesc()
- <<"Got new peer id: "<<peer_id_new<<"... "<<std::endl);
-
- if(m_connection->GetPeerID() != PEER_ID_INEXISTENT)
- {
- LOG(derr_con<<m_connection->getDesc()
- <<"WARNING: Not changing"
- " existing peer id."<<std::endl);
- }
- else
- {
- LOG(dout_con<<m_connection->getDesc()<<"changing own peer id"<<std::endl);
- m_connection->SetPeerID(peer_id_new);
- }
-
- ConnectionCommand cmd;
-
- SharedBuffer<u8> reply(2);
- writeU8(&reply[0], TYPE_CONTROL);
- writeU8(&reply[1], CONTROLTYPE_ENABLE_BIG_SEND_WINDOW);
- cmd.disableLegacy(PEER_ID_SERVER,reply);
- m_connection->putCommand(cmd);
-
- throw ProcessedSilentlyException("Got a SET_PEER_ID");
- }
- else if(controltype == CONTROLTYPE_PING)
- {
- // Just ignore it, the incoming data already reset
- // the timeout counter
- LOG(dout_con<<m_connection->getDesc()<<"PING"<<std::endl);
- throw ProcessedSilentlyException("Got a PING");
- }
- else if(controltype == CONTROLTYPE_DISCO)
- {
- // Just ignore it, the incoming data already reset
- // the timeout counter
- LOG(dout_con<<m_connection->getDesc()
- <<"DISCO: Removing peer "<<(peer_id)<<std::endl);
-
- if(m_connection->deletePeer(peer_id, false) == false)
- {
- derr_con<<m_connection->getDesc()
- <<"DISCO: Peer not found"<<std::endl;
- }
-
- throw ProcessedSilentlyException("Got a DISCO");
- }
- else if(controltype == CONTROLTYPE_ENABLE_BIG_SEND_WINDOW)
- {
- dynamic_cast<UDPPeer*>(&peer)->setNonLegacyPeer();
- throw ProcessedSilentlyException("Got non legacy control");
- }
- else{
- LOG(derr_con<<m_connection->getDesc()
- <<"INVALID TYPE_CONTROL: invalid controltype="
- <<((int)controltype&0xff)<<std::endl);
- throw InvalidIncomingDataException("Invalid control type");
- }
- }
- else if(type == TYPE_ORIGINAL)
- {
- if(packetdata.getSize() <= ORIGINAL_HEADER_SIZE)
- throw InvalidIncomingDataException
- ("packetdata.getSize() <= ORIGINAL_HEADER_SIZE");
- LOG(dout_con<<m_connection->getDesc()
- <<"RETURNING TYPE_ORIGINAL to user"
- <<std::endl);
- // Get the inside packet out and return it
- SharedBuffer<u8> payload(packetdata.getSize() - ORIGINAL_HEADER_SIZE);
- memcpy(*payload, &(packetdata[ORIGINAL_HEADER_SIZE]), payload.getSize());
- return payload;
- }
- else if(type == TYPE_SPLIT)
- {
- Address peer_address;
-
- if (peer->getAddress(MTP_UDP, peer_address)) {
-
- // We have to create a packet again for buffering
- // This isn't actually too bad an idea.
- BufferedPacket packet = makePacket(
- peer_address,
- packetdata,
- m_connection->GetProtocolID(),
- peer_id,
- channelnum);
-
- // Buffer the packet
- SharedBuffer<u8> data =
- peer->addSpiltPacket(channelnum,packet,reliable);
-
- if(data.getSize() != 0)
- {
- LOG(dout_con<<m_connection->getDesc()
- <<"RETURNING TYPE_SPLIT: Constructed full data, "
- <<"size="<<data.getSize()<<std::endl);
- return data;
- }
- LOG(dout_con<<m_connection->getDesc()<<"BUFFERED TYPE_SPLIT"<<std::endl);
- throw ProcessedSilentlyException("Buffered a split packet chunk");
- }
- else {
- //TODO throw some error
- }
- }
- else if(type == TYPE_RELIABLE)
- {
- assert(channel != 0);
- // Recursive reliable packets not allowed
- if(reliable)
- throw InvalidIncomingDataException("Found nested reliable packets");
-
- if(packetdata.getSize() < RELIABLE_HEADER_SIZE)
- throw InvalidIncomingDataException
- ("packetdata.getSize() < RELIABLE_HEADER_SIZE");
-
- u16 seqnum = readU16(&packetdata[1]);
- bool is_future_packet = false;
- bool is_old_packet = false;
-
- /* packet is within our receive window send ack */
- if (seqnum_in_window(seqnum, channel->readNextIncomingSeqNum(),MAX_RELIABLE_WINDOW_SIZE))
- {
- m_connection->sendAck(peer_id,channelnum,seqnum);
- }
- else {
- is_future_packet = seqnum_higher(seqnum, channel->readNextIncomingSeqNum());
- is_old_packet = seqnum_higher(channel->readNextIncomingSeqNum(), seqnum);
-
-
- /* packet is not within receive window, don't send ack. *
- * if this was a valid packet it's gonna be retransmitted */
- if (is_future_packet)
- {
- throw ProcessedSilentlyException("Received packet newer then expected, not sending ack");
- }
-
- /* seems like our ack was lost, send another one for a old packet */
- if (is_old_packet)
- {
- LOG(dout_con<<m_connection->getDesc()
- << "RE-SENDING ACK: peer_id: " << peer_id
- << ", channel: " << (channelnum&0xFF)
- << ", seqnum: " << seqnum << std::endl;)
- m_connection->sendAck(peer_id,channelnum,seqnum);
-
- // we already have this packet so this one was on wire at least
- // the current timeout
- // we don't know how long this packet was on wire don't do silly guessing
- // dynamic_cast<UDPPeer*>(&peer)->reportRTT(dynamic_cast<UDPPeer*>(&peer)->getResendTimeout());
-
- throw ProcessedSilentlyException("Retransmitting ack for old packet");
- }
- }
-
- if (seqnum != channel->readNextIncomingSeqNum())
- {
- Address peer_address;
-
- // this is a reliable packet so we have a udp address for sure
- peer->getAddress(MTP_MINETEST_RELIABLE_UDP, peer_address);
- // This one comes later, buffer it.
- // Actually we have to make a packet to buffer one.
- // Well, we have all the ingredients, so just do it.
- BufferedPacket packet = con::makePacket(
- peer_address,
- packetdata,
- m_connection->GetProtocolID(),
- peer_id,
- channelnum);
- try{
- channel->incoming_reliables.insert(packet,channel->readNextIncomingSeqNum());
-
- LOG(dout_con<<m_connection->getDesc()
- << "BUFFERING, TYPE_RELIABLE peer_id: " << peer_id
- << ", channel: " << (channelnum&0xFF)
- << ", seqnum: " << seqnum << std::endl;)
-
- throw ProcessedQueued("Buffered future reliable packet");
- }
- catch(AlreadyExistsException &e)
- {
- }
- catch(IncomingDataCorruption &e)
- {
- ConnectionCommand discon;
- discon.disconnect_peer(peer_id);
- m_connection->putCommand(discon);
-
- LOG(derr_con<<m_connection->getDesc()
- << "INVALID, TYPE_RELIABLE peer_id: " << peer_id
- << ", channel: " << (channelnum&0xFF)
- << ", seqnum: " << seqnum
- << "DROPPING CLIENT!" << std::endl;)
- }
- }
-
- /* we got a packet to process right now */
- LOG(dout_con<<m_connection->getDesc()
- << "RECURSIVE, TYPE_RELIABLE peer_id: " << peer_id
- << ", channel: " << (channelnum&0xFF)
- << ", seqnum: " << seqnum << std::endl;)
-
-
- /* check for resend case */
- u16 queued_seqnum = 0;
- if (channel->incoming_reliables.getFirstSeqnum(queued_seqnum))
- {
- if (queued_seqnum == seqnum)
- {
- BufferedPacket queued_packet = channel->incoming_reliables.popFirst();
- /** TODO find a way to verify the new against the old packet */
- }
- }
-
- channel->incNextIncomingSeqNum();
-
- // Get out the inside packet and re-process it
- SharedBuffer<u8> payload(packetdata.getSize() - RELIABLE_HEADER_SIZE);
- memcpy(*payload, &packetdata[RELIABLE_HEADER_SIZE], payload.getSize());
-
- return processPacket(channel, payload, peer_id, channelnum, true);
- }
- else
- {
- derr_con<<m_connection->getDesc()
- <<"Got invalid type="<<((int)type&0xff)<<std::endl;
- throw InvalidIncomingDataException("Invalid packet type");
- }
-
- // We should never get here.
- // If you get here, add an exception or a return to some of the
- // above conditionals.
- assert(0);
- throw BaseException("Error in Channel::ProcessPacket()");
-}
-
-/*
- Connection
-*/
-
-Connection::Connection(u32 protocol_id, u32 max_packet_size, float timeout,
- bool ipv6) :
- m_udpSocket(ipv6),
- m_command_queue(),
- m_event_queue(),
- m_peer_id(0),
- m_protocol_id(protocol_id),
- m_sendThread(max_packet_size, timeout),
- m_receiveThread(max_packet_size),
- m_info_mutex(),
- m_bc_peerhandler(0),
- m_bc_receive_timeout(0),
- m_shutting_down(false),
- m_next_remote_peer_id(2)
-{
- m_udpSocket.setTimeoutMs(5);
-
- m_sendThread.setParent(this);
- m_receiveThread.setParent(this);
-
- m_sendThread.Start();
- m_receiveThread.Start();
-}
-
-Connection::Connection(u32 protocol_id, u32 max_packet_size, float timeout,
- bool ipv6, PeerHandler *peerhandler) :
- m_udpSocket(ipv6),
- m_command_queue(),
- m_event_queue(),
- m_peer_id(0),
- m_protocol_id(protocol_id),
- m_sendThread(max_packet_size, timeout),
- m_receiveThread(max_packet_size),
- m_info_mutex(),
- m_bc_peerhandler(peerhandler),
- m_bc_receive_timeout(0),
- m_shutting_down(false),
- m_next_remote_peer_id(2)
-
-{
- m_udpSocket.setTimeoutMs(5);
-
- m_sendThread.setParent(this);
- m_receiveThread.setParent(this);
-
- m_sendThread.Start();
- m_receiveThread.Start();
-
-}
-
-
-Connection::~Connection()
-{
- m_shutting_down = true;
- // request threads to stop
- m_sendThread.Stop();
- m_receiveThread.Stop();
-
- //TODO for some unkonwn reason send/receive threads do not exit as they're
- // supposed to be but wait on peer timeout. To speed up shutdown we reduce
- // timeout to half a second.
- m_sendThread.setPeerTimeout(0.5);
-
- // wait for threads to finish
- m_sendThread.Wait();
- m_receiveThread.Wait();
-
- // Delete peers
- for(std::map<u16, Peer*>::iterator
- j = m_peers.begin();
- j != m_peers.end(); ++j)
- {
- delete j->second;
- }
-}
-
-/* Internal stuff */
-void Connection::putEvent(ConnectionEvent &e)
-{
- assert(e.type != CONNEVENT_NONE);
- m_event_queue.push_back(e);
-}
-
-PeerHelper Connection::getPeer(u16 peer_id)
-{
- JMutexAutoLock peerlock(m_peers_mutex);
- std::map<u16, Peer*>::iterator node = m_peers.find(peer_id);
-
- if(node == m_peers.end()){
- throw PeerNotFoundException("GetPeer: Peer not found (possible timeout)");
- }
-
- // Error checking
- assert(node->second->id == peer_id);
-
- return PeerHelper(node->second);
-}
-
-PeerHelper Connection::getPeerNoEx(u16 peer_id)
-{
- JMutexAutoLock peerlock(m_peers_mutex);
- std::map<u16, Peer*>::iterator node = m_peers.find(peer_id);
-
- if(node == m_peers.end()){
- return PeerHelper(NULL);
- }
-
- // Error checking
- assert(node->second->id == peer_id);
-
- return PeerHelper(node->second);
-}
-
-/* find peer_id for address */
-u16 Connection::lookupPeer(Address& sender)
-{
- JMutexAutoLock peerlock(m_peers_mutex);
- std::map<u16, Peer*>::iterator j;
- j = m_peers.begin();
- for(; j != m_peers.end(); ++j)
- {
- Peer *peer = j->second;
- if(peer->isActive())
- continue;
-
- Address tocheck;
-
- if ((peer->getAddress(MTP_MINETEST_RELIABLE_UDP, tocheck)) && (tocheck == sender))
- return peer->id;
-
- if ((peer->getAddress(MTP_UDP, tocheck)) && (tocheck == sender))
- return peer->id;
- }
-
- return PEER_ID_INEXISTENT;
-}
-
-std::list<Peer*> Connection::getPeers()
-{
- std::list<Peer*> list;
- for(std::map<u16, Peer*>::iterator j = m_peers.begin();
- j != m_peers.end(); ++j)
- {
- Peer *peer = j->second;
- list.push_back(peer);
- }
- return list;
-}
-
-bool Connection::deletePeer(u16 peer_id, bool timeout)
-{
- Peer *peer = 0;
-
- /* lock list as short as possible */
- {
- JMutexAutoLock peerlock(m_peers_mutex);
- if(m_peers.find(peer_id) == m_peers.end())
- return false;
- peer = m_peers[peer_id];
- m_peers.erase(peer_id);
- }
-
- Address peer_address;
- //any peer has a primary address this never fails!
- peer->getAddress(MTP_PRIMARY, peer_address);
- // Create event
- ConnectionEvent e;
- e.peerRemoved(peer_id, timeout, peer_address);
- putEvent(e);
-
-
- peer->Drop();
- return true;
-}
-
-/* Interface */
-
-ConnectionEvent Connection::getEvent()
-{
- if(m_event_queue.empty()){
- ConnectionEvent e;
- e.type = CONNEVENT_NONE;
- return e;
- }
- return m_event_queue.pop_frontNoEx();
-}
-
-ConnectionEvent Connection::waitEvent(u32 timeout_ms)
-{
- try{
- return m_event_queue.pop_front(timeout_ms);
- } catch(ItemNotFoundException &ex){
- ConnectionEvent e;
- e.type = CONNEVENT_NONE;
- return e;
- }
-}
-
-void Connection::putCommand(ConnectionCommand &c)
-{
- if (!m_shutting_down)
- {
- m_command_queue.push_back(c);
- m_sendThread.Trigger();
- }
-}
-
-void Connection::Serve(Address bind_addr)
-{
- ConnectionCommand c;
- c.serve(bind_addr);
- putCommand(c);
-}
-
-void Connection::Connect(Address address)
-{
- ConnectionCommand c;
- c.connect(address);
- putCommand(c);
-}
-
-bool Connection::Connected()
-{
- JMutexAutoLock peerlock(m_peers_mutex);
-
- if(m_peers.size() != 1)
- return false;
-
- std::map<u16, Peer*>::iterator node = m_peers.find(PEER_ID_SERVER);
- if(node == m_peers.end())
- return false;
-
- if(m_peer_id == PEER_ID_INEXISTENT)
- return false;
-
- return true;
-}
-
-void Connection::Disconnect()
-{
- ConnectionCommand c;
- c.disconnect();
- putCommand(c);
-}
-
-u32 Connection::Receive(u16 &peer_id, SharedBuffer<u8> &data)
-{
- for(;;){
- ConnectionEvent e = waitEvent(m_bc_receive_timeout);
- if(e.type != CONNEVENT_NONE)
- LOG(dout_con<<getDesc()<<": Receive: got event: "
- <<e.describe()<<std::endl);
- switch(e.type){
- case CONNEVENT_NONE:
- throw NoIncomingDataException("No incoming data");
- case CONNEVENT_DATA_RECEIVED:
- peer_id = e.peer_id;
- data = SharedBuffer<u8>(e.data);
- return e.data.getSize();
- case CONNEVENT_PEER_ADDED: {
- UDPPeer tmp(e.peer_id, e.address, this);
- if(m_bc_peerhandler)
- m_bc_peerhandler->peerAdded(&tmp);
- continue; }
- case CONNEVENT_PEER_REMOVED: {
- UDPPeer tmp(e.peer_id, e.address, this);
- if(m_bc_peerhandler)
- m_bc_peerhandler->deletingPeer(&tmp, e.timeout);
- continue; }
- case CONNEVENT_BIND_FAILED:
- throw ConnectionBindFailed("Failed to bind socket "
- "(port already in use?)");
- }
- }
- throw NoIncomingDataException("No incoming data");
-}
-
-void Connection::SendToAll(u8 channelnum, SharedBuffer<u8> data, bool reliable)
-{
- assert(channelnum < CHANNEL_COUNT);
-
- ConnectionCommand c;
- c.sendToAll(channelnum, data, reliable);
- putCommand(c);
-}
-
-void Connection::Send(u16 peer_id, u8 channelnum,
- SharedBuffer<u8> data, bool reliable)
-{
- assert(channelnum < CHANNEL_COUNT);
-
- ConnectionCommand c;
- c.send(peer_id, channelnum, data, reliable);
- putCommand(c);
-}
-
-Address Connection::GetPeerAddress(u16 peer_id)
-{
- PeerHelper peer = getPeerNoEx(peer_id);
-
- if (!peer)
- throw PeerNotFoundException("No address for peer found!");
- Address peer_address;
- peer->getAddress(MTP_PRIMARY, peer_address);
- return peer_address;
-}
-
-float Connection::getPeerStat(u16 peer_id, rtt_stat_type type)
-{
- PeerHelper peer = getPeerNoEx(peer_id);
- if (!peer) return -1;
- return peer->getStat(type);
-}
-
-float Connection::getLocalStat(rate_stat_type type)
-{
- PeerHelper peer = getPeerNoEx(PEER_ID_SERVER);
-
- if (!peer) {
- assert("Connection::getLocalStat we couldn't get our own peer? are you serious???" == 0);
- }
-
- float retval = 0.0;
-
- for (u16 j=0; j<CHANNEL_COUNT; j++) {
- switch(type) {
- case CUR_DL_RATE:
- retval += dynamic_cast<UDPPeer*>(&peer)->channels[j].getCurrentDownloadRateKB();
- break;
- case AVG_DL_RATE:
- retval += dynamic_cast<UDPPeer*>(&peer)->channels[j].getAvgDownloadRateKB();
- break;
- case CUR_INC_RATE:
- retval += dynamic_cast<UDPPeer*>(&peer)->channels[j].getCurrentIncomingRateKB();
- break;
- case AVG_INC_RATE:
- retval += dynamic_cast<UDPPeer*>(&peer)->channels[j].getAvgIncomingRateKB();
- break;
- case AVG_LOSS_RATE:
- retval += dynamic_cast<UDPPeer*>(&peer)->channels[j].getAvgLossRateKB();
- break;
- case CUR_LOSS_RATE:
- retval += dynamic_cast<UDPPeer*>(&peer)->channels[j].getCurrentLossRateKB();
- break;
- default:
- assert("Connection::getLocalStat Invalid stat type" == 0);
- }
- }
- return retval;
-}
-
-u16 Connection::createPeer(Address& sender, MTProtocols protocol, int fd)
-{
- // Somebody wants to make a new connection
-
- // Get a unique peer id (2 or higher)
- u16 peer_id_new = m_next_remote_peer_id;
- u16 overflow = MAX_UDP_PEERS;
-
- /*
- Find an unused peer id
- */
- {
- JMutexAutoLock lock(m_peers_mutex);
- bool out_of_ids = false;
- for(;;)
- {
- // Check if exists
- if(m_peers.find(peer_id_new) == m_peers.end())
- break;
- // Check for overflow
- if(peer_id_new == overflow){
- out_of_ids = true;
- break;
- }
- peer_id_new++;
- }
- if(out_of_ids){
- errorstream<<getDesc()<<" ran out of peer ids"<<std::endl;
- return PEER_ID_INEXISTENT;
- }
-
- // Create a peer
- Peer *peer = 0;
- peer = new UDPPeer(peer_id_new, sender, this);
-
- m_peers[peer->id] = peer;
- }
-
- m_next_remote_peer_id = (peer_id_new +1) % MAX_UDP_PEERS;
-
- LOG(dout_con<<getDesc()
- <<"createPeer(): giving peer_id="<<peer_id_new<<std::endl);
-
- ConnectionCommand cmd;
- SharedBuffer<u8> reply(4);
- writeU8(&reply[0], TYPE_CONTROL);
- writeU8(&reply[1], CONTROLTYPE_SET_PEER_ID);
- writeU16(&reply[2], peer_id_new);
- cmd.createPeer(peer_id_new,reply);
- this->putCommand(cmd);
-
- // Create peer addition event
- ConnectionEvent e;
- e.peerAdded(peer_id_new, sender);
- putEvent(e);
-
- // We're now talking to a valid peer_id
- return peer_id_new;
-}
-
-void Connection::PrintInfo(std::ostream &out)
-{
- m_info_mutex.Lock();
- out<<getDesc()<<": ";
- m_info_mutex.Unlock();
-}
-
-void Connection::PrintInfo()
-{
- PrintInfo(dout_con);
-}
-
-const std::string Connection::getDesc()
-{
- return std::string("con(")+
- itos(m_udpSocket.GetHandle())+"/"+itos(m_peer_id)+")";
-}
-
-void Connection::DisconnectPeer(u16 peer_id)
-{
- ConnectionCommand discon;
- discon.disconnect_peer(peer_id);
- putCommand(discon);
-}
-
-void Connection::sendAck(u16 peer_id, u8 channelnum, u16 seqnum)
-{
- assert(channelnum < CHANNEL_COUNT);
-
- LOG(dout_con<<getDesc()
- <<" Queuing ACK command to peer_id: " << peer_id <<
- " channel: " << (channelnum & 0xFF) <<
- " seqnum: " << seqnum << std::endl);
-
- ConnectionCommand c;
- SharedBuffer<u8> ack(4);
- writeU8(&ack[0], TYPE_CONTROL);
- writeU8(&ack[1], CONTROLTYPE_ACK);
- writeU16(&ack[2], seqnum);
-
- c.ack(peer_id, channelnum, ack);
- putCommand(c);
- m_sendThread.Trigger();
-}
-
-UDPPeer* Connection::createServerPeer(Address& address)
-{
- if (getPeerNoEx(PEER_ID_SERVER) != 0)
- {
- throw ConnectionException("Already connected to a server");
- }
-
- UDPPeer *peer = new UDPPeer(PEER_ID_SERVER, address, this);
-
- {
- JMutexAutoLock lock(m_peers_mutex);
- m_peers[peer->id] = peer;
- }
-
- return peer;
-}
-
-std::list<u16> Connection::getPeerIDs()
-{
- std::list<u16> retval;
-
- JMutexAutoLock lock(m_peers_mutex);
- for(std::map<u16, Peer*>::iterator j = m_peers.begin();
- j != m_peers.end(); ++j)
- {
- retval.push_back(j->first);
- }
- return retval;
-}
-
-} // namespace
+++ /dev/null
-/*
-Minetest
-Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation; either version 2.1 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#ifndef CONNECTION_HEADER
-#define CONNECTION_HEADER
-
-#include "irrlichttypes_bloated.h"
-#include "socket.h"
-#include "exceptions.h"
-#include "constants.h"
-#include "util/pointer.h"
-#include "util/container.h"
-#include "util/thread.h"
-#include "util/numeric.h"
-#include <iostream>
-#include <fstream>
-#include <list>
-#include <map>
-
-namespace con
-{
-
-/*
- Exceptions
-*/
-class NotFoundException : public BaseException
-{
-public:
- NotFoundException(const char *s):
- BaseException(s)
- {}
-};
-
-class PeerNotFoundException : public BaseException
-{
-public:
- PeerNotFoundException(const char *s):
- BaseException(s)
- {}
-};
-
-class ConnectionException : public BaseException
-{
-public:
- ConnectionException(const char *s):
- BaseException(s)
- {}
-};
-
-class ConnectionBindFailed : public BaseException
-{
-public:
- ConnectionBindFailed(const char *s):
- BaseException(s)
- {}
-};
-
-class InvalidIncomingDataException : public BaseException
-{
-public:
- InvalidIncomingDataException(const char *s):
- BaseException(s)
- {}
-};
-
-class InvalidOutgoingDataException : public BaseException
-{
-public:
- InvalidOutgoingDataException(const char *s):
- BaseException(s)
- {}
-};
-
-class NoIncomingDataException : public BaseException
-{
-public:
- NoIncomingDataException(const char *s):
- BaseException(s)
- {}
-};
-
-class ProcessedSilentlyException : public BaseException
-{
-public:
- ProcessedSilentlyException(const char *s):
- BaseException(s)
- {}
-};
-
-class ProcessedQueued : public BaseException
-{
-public:
- ProcessedQueued(const char *s):
- BaseException(s)
- {}
-};
-
-class IncomingDataCorruption : public BaseException
-{
-public:
- IncomingDataCorruption(const char *s):
- BaseException(s)
- {}
-};
-
-typedef enum MTProtocols {
- MTP_PRIMARY,
- MTP_UDP,
- MTP_MINETEST_RELIABLE_UDP
-} MTProtocols;
-
-#define SEQNUM_MAX 65535
-inline bool seqnum_higher(u16 totest, u16 base)
-{
- if (totest > base)
- {
- if((totest - base) > (SEQNUM_MAX/2))
- return false;
- else
- return true;
- }
- else
- {
- if((base - totest) > (SEQNUM_MAX/2))
- return true;
- else
- return false;
- }
-}
-
-inline bool seqnum_in_window(u16 seqnum, u16 next,u16 window_size)
-{
- u16 window_start = next;
- u16 window_end = ( next + window_size ) % (SEQNUM_MAX+1);
-
- if (window_start < window_end)
- {
- return ((seqnum >= window_start) && (seqnum < window_end));
- }
- else
- {
- return ((seqnum < window_end) || (seqnum >= window_start));
- }
-}
-
-struct BufferedPacket
-{
- BufferedPacket(u8 *a_data, u32 a_size):
- data(a_data, a_size), time(0.0), totaltime(0.0), absolute_send_time(-1),
- resend_count(0)
- {}
- BufferedPacket(u32 a_size):
- data(a_size), time(0.0), totaltime(0.0), absolute_send_time(-1),
- resend_count(0)
- {}
- SharedBuffer<u8> data; // Data of the packet, including headers
- float time; // Seconds from buffering the packet or re-sending
- float totaltime; // Seconds from buffering the packet
- unsigned int absolute_send_time;
- Address address; // Sender or destination
- unsigned int resend_count;
-};
-
-// This adds the base headers to the data and makes a packet out of it
-BufferedPacket makePacket(Address &address, u8 *data, u32 datasize,
- u32 protocol_id, u16 sender_peer_id, u8 channel);
-BufferedPacket makePacket(Address &address, SharedBuffer<u8> &data,
- u32 protocol_id, u16 sender_peer_id, u8 channel);
-
-// Add the TYPE_ORIGINAL header to the data
-SharedBuffer<u8> makeOriginalPacket(
- SharedBuffer<u8> data);
-
-// Split data in chunks and add TYPE_SPLIT headers to them
-std::list<SharedBuffer<u8> > makeSplitPacket(
- SharedBuffer<u8> data,
- u32 chunksize_max,
- u16 seqnum);
-
-// Depending on size, make a TYPE_ORIGINAL or TYPE_SPLIT packet
-// Increments split_seqnum if a split packet is made
-std::list<SharedBuffer<u8> > makeAutoSplitPacket(
- SharedBuffer<u8> data,
- u32 chunksize_max,
- u16 &split_seqnum);
-
-// Add the TYPE_RELIABLE header to the data
-SharedBuffer<u8> makeReliablePacket(
- SharedBuffer<u8> data,
- u16 seqnum);
-
-struct IncomingSplitPacket
-{
- IncomingSplitPacket()
- {
- time = 0.0;
- reliable = false;
- }
- // Key is chunk number, value is data without headers
- std::map<u16, SharedBuffer<u8> > chunks;
- u32 chunk_count;
- float time; // Seconds from adding
- bool reliable; // If true, isn't deleted on timeout
-
- bool allReceived()
- {
- return (chunks.size() == chunk_count);
- }
-};
-
-/*
-=== NOTES ===
-
-A packet is sent through a channel to a peer with a basic header:
-TODO: Should we have a receiver_peer_id also?
- Header (7 bytes):
- [0] u32 protocol_id
- [4] u16 sender_peer_id
- [6] u8 channel
-sender_peer_id:
- Unique to each peer.
- value 0 (PEER_ID_INEXISTENT) is reserved for making new connections
- value 1 (PEER_ID_SERVER) is reserved for server
- these constants are defined in constants.h
-channel:
- The lower the number, the higher the priority is.
- Only channels 0, 1 and 2 exist.
-*/
-#define BASE_HEADER_SIZE 7
-#define CHANNEL_COUNT 3
-/*
-Packet types:
-
-CONTROL: This is a packet used by the protocol.
-- When this is processed, nothing is handed to the user.
- Header (2 byte):
- [0] u8 type
- [1] u8 controltype
-controltype and data description:
- CONTROLTYPE_ACK
- [2] u16 seqnum
- CONTROLTYPE_SET_PEER_ID
- [2] u16 peer_id_new
- CONTROLTYPE_PING
- - There is no actual reply, but this can be sent in a reliable
- packet to get a reply
- CONTROLTYPE_DISCO
-*/
-#define TYPE_CONTROL 0
-#define CONTROLTYPE_ACK 0
-#define CONTROLTYPE_SET_PEER_ID 1
-#define CONTROLTYPE_PING 2
-#define CONTROLTYPE_DISCO 3
-#define CONTROLTYPE_ENABLE_BIG_SEND_WINDOW 4
-
-/*
-ORIGINAL: This is a plain packet with no control and no error
-checking at all.
-- When this is processed, it is directly handed to the user.
- Header (1 byte):
- [0] u8 type
-*/
-#define TYPE_ORIGINAL 1
-#define ORIGINAL_HEADER_SIZE 1
-/*
-SPLIT: These are sequences of packets forming one bigger piece of
-data.
-- When processed and all the packet_nums 0...packet_count-1 are
- present (this should be buffered), the resulting data shall be
- directly handed to the user.
-- If the data fails to come up in a reasonable time, the buffer shall
- be silently discarded.
-- These can be sent as-is or atop of a RELIABLE packet stream.
- Header (7 bytes):
- [0] u8 type
- [1] u16 seqnum
- [3] u16 chunk_count
- [5] u16 chunk_num
-*/
-#define TYPE_SPLIT 2
-/*
-RELIABLE: Delivery of all RELIABLE packets shall be forced by ACKs,
-and they shall be delivered in the same order as sent. This is done
-with a buffer in the receiving and transmitting end.
-- When this is processed, the contents of each packet is recursively
- processed as packets.
- Header (3 bytes):
- [0] u8 type
- [1] u16 seqnum
-
-*/
-#define TYPE_RELIABLE 3
-#define RELIABLE_HEADER_SIZE 3
-#define SEQNUM_INITIAL 65500
-
-/*
- A buffer which stores reliable packets and sorts them internally
- for fast access to the smallest one.
-*/
-
-typedef std::list<BufferedPacket>::iterator RPBSearchResult;
-
-class ReliablePacketBuffer
-{
-public:
- ReliablePacketBuffer();
-
- bool getFirstSeqnum(u16& result);
-
- BufferedPacket popFirst();
- BufferedPacket popSeqnum(u16 seqnum);
- void insert(BufferedPacket &p,u16 next_expected);
-
- void incrementTimeouts(float dtime);
- std::list<BufferedPacket> getTimedOuts(float timeout,
- unsigned int max_packets);
-
- void print();
- bool empty();
- bool containsPacket(u16 seqnum);
- RPBSearchResult notFound();
- u32 size();
-
-
-private:
- RPBSearchResult findPacket(u16 seqnum);
-
- std::list<BufferedPacket> m_list;
- u32 m_list_size;
-
- u16 m_oldest_non_answered_ack;
-
- JMutex m_list_mutex;
-};
-
-/*
- A buffer for reconstructing split packets
-*/
-
-class IncomingSplitBuffer
-{
-public:
- ~IncomingSplitBuffer();
- /*
- Returns a reference counted buffer of length != 0 when a full split
- packet is constructed. If not, returns one of length 0.
- */
- SharedBuffer<u8> insert(BufferedPacket &p, bool reliable);
-
- void removeUnreliableTimedOuts(float dtime, float timeout);
-
-private:
- // Key is seqnum
- std::map<u16, IncomingSplitPacket*> m_buf;
-
- JMutex m_map_mutex;
-};
-
-struct OutgoingPacket
-{
- u16 peer_id;
- u8 channelnum;
- SharedBuffer<u8> data;
- bool reliable;
- bool ack;
-
- OutgoingPacket(u16 peer_id_, u8 channelnum_, SharedBuffer<u8> data_,
- bool reliable_,bool ack_=false):
- peer_id(peer_id_),
- channelnum(channelnum_),
- data(data_),
- reliable(reliable_),
- ack(ack_)
- {
- }
-};
-
-enum ConnectionCommandType{
- CONNCMD_NONE,
- CONNCMD_SERVE,
- CONNCMD_CONNECT,
- CONNCMD_DISCONNECT,
- CONNCMD_DISCONNECT_PEER,
- CONNCMD_SEND,
- CONNCMD_SEND_TO_ALL,
- CONCMD_ACK,
- CONCMD_CREATE_PEER,
- CONCMD_DISABLE_LEGACY
-};
-
-struct ConnectionCommand
-{
- enum ConnectionCommandType type;
- Address address;
- u16 peer_id;
- u8 channelnum;
- Buffer<u8> data;
- bool reliable;
- bool raw;
-
- ConnectionCommand(): type(CONNCMD_NONE), peer_id(PEER_ID_INEXISTENT), reliable(false), raw(false) {}
-
- void serve(Address address_)
- {
- type = CONNCMD_SERVE;
- address = address_;
- }
- void connect(Address address_)
- {
- type = CONNCMD_CONNECT;
- address = address_;
- }
- void disconnect()
- {
- type = CONNCMD_DISCONNECT;
- }
- void disconnect_peer(u16 peer_id_)
- {
- type = CONNCMD_DISCONNECT_PEER;
- peer_id = peer_id_;
- }
- void send(u16 peer_id_, u8 channelnum_,
- SharedBuffer<u8> data_, bool reliable_)
- {
- type = CONNCMD_SEND;
- peer_id = peer_id_;
- channelnum = channelnum_;
- data = data_;
- reliable = reliable_;
- }
- void sendToAll(u8 channelnum_, SharedBuffer<u8> data_, bool reliable_)
- {
- type = CONNCMD_SEND_TO_ALL;
- channelnum = channelnum_;
- data = data_;
- reliable = reliable_;
- }
-
- void ack(u16 peer_id_, u8 channelnum_, SharedBuffer<u8> data_)
- {
- type = CONCMD_ACK;
- peer_id = peer_id_;
- channelnum = channelnum_;
- data = data_;
- reliable = false;
- }
-
- void createPeer(u16 peer_id_, SharedBuffer<u8> data_)
- {
- type = CONCMD_CREATE_PEER;
- peer_id = peer_id_;
- data = data_;
- channelnum = 0;
- reliable = true;
- raw = true;
- }
-
- void disableLegacy(u16 peer_id_, SharedBuffer<u8> data_)
- {
- type = CONCMD_DISABLE_LEGACY;
- peer_id = peer_id_;
- data = data_;
- channelnum = 0;
- reliable = true;
- raw = true;
- }
-};
-
-class Channel
-{
-
-public:
- u16 readNextIncomingSeqNum();
- u16 incNextIncomingSeqNum();
-
- u16 getOutgoingSequenceNumber(bool& successfull);
- u16 readOutgoingSequenceNumber();
- bool putBackSequenceNumber(u16);
-
- u16 readNextSplitSeqNum();
- void setNextSplitSeqNum(u16 seqnum);
-
- // This is for buffering the incoming packets that are coming in
- // the wrong order
- ReliablePacketBuffer incoming_reliables;
- // This is for buffering the sent packets so that the sender can
- // re-send them if no ACK is received
- ReliablePacketBuffer outgoing_reliables_sent;
-
- //queued reliable packets
- Queue<BufferedPacket> queued_reliables;
-
- //queue commands prior splitting to packets
- Queue<ConnectionCommand> queued_commands;
-
- IncomingSplitBuffer incoming_splits;
-
- Channel();
- ~Channel();
-
- void UpdatePacketLossCounter(unsigned int count);
- void UpdatePacketTooLateCounter();
- void UpdateBytesSent(unsigned int bytes,unsigned int packages=1);
- void UpdateBytesLost(unsigned int bytes);
- void UpdateBytesReceived(unsigned int bytes);
-
- void UpdateTimers(float dtime, bool legacy_peer);
-
- const float getCurrentDownloadRateKB()
- { JMutexAutoLock lock(m_internal_mutex); return cur_kbps; };
- const float getMaxDownloadRateKB()
- { JMutexAutoLock lock(m_internal_mutex); return max_kbps; };
-
- const float getCurrentLossRateKB()
- { JMutexAutoLock lock(m_internal_mutex); return cur_kbps_lost; };
- const float getMaxLossRateKB()
- { JMutexAutoLock lock(m_internal_mutex); return max_kbps_lost; };
-
- const float getCurrentIncomingRateKB()
- { JMutexAutoLock lock(m_internal_mutex); return cur_incoming_kbps; };
- const float getMaxIncomingRateKB()
- { JMutexAutoLock lock(m_internal_mutex); return max_incoming_kbps; };
-
- const float getAvgDownloadRateKB()
- { JMutexAutoLock lock(m_internal_mutex); return avg_kbps; };
- const float getAvgLossRateKB()
- { JMutexAutoLock lock(m_internal_mutex); return avg_kbps_lost; };
- const float getAvgIncomingRateKB()
- { JMutexAutoLock lock(m_internal_mutex); return avg_incoming_kbps; };
-
- const unsigned int getWindowSize() const { return window_size; };
-
- void setWindowSize(unsigned int size) { window_size = size; };
-private:
- JMutex m_internal_mutex;
- int window_size;
-
- u16 next_incoming_seqnum;
-
- u16 next_outgoing_seqnum;
- u16 next_outgoing_split_seqnum;
-
- unsigned int current_packet_loss;
- unsigned int current_packet_too_late;
- unsigned int current_packet_successfull;
- float packet_loss_counter;
-
- unsigned int current_bytes_transfered;
- unsigned int current_bytes_received;
- unsigned int current_bytes_lost;
- float max_kbps;
- float cur_kbps;
- float avg_kbps;
- float max_incoming_kbps;
- float cur_incoming_kbps;
- float avg_incoming_kbps;
- float max_kbps_lost;
- float cur_kbps_lost;
- float avg_kbps_lost;
- float bpm_counter;
-
- unsigned int rate_samples;
-};
-
-class Peer;
-
-enum PeerChangeType
-{
- PEER_ADDED,
- PEER_REMOVED
-};
-struct PeerChange
-{
- PeerChangeType type;
- u16 peer_id;
- bool timeout;
-};
-
-class PeerHandler
-{
-public:
-
- PeerHandler()
- {
- }
- virtual ~PeerHandler()
- {
- }
-
- /*
- This is called after the Peer has been inserted into the
- Connection's peer container.
- */
- virtual void peerAdded(Peer *peer) = 0;
- /*
- This is called before the Peer has been removed from the
- Connection's peer container.
- */
- virtual void deletingPeer(Peer *peer, bool timeout) = 0;
-};
-
-class PeerHelper
-{
-public:
- PeerHelper();
- PeerHelper(Peer* peer);
- ~PeerHelper();
-
- PeerHelper& operator=(Peer* peer);
- Peer* operator->() const;
- bool operator!();
- Peer* operator&() const;
- bool operator!=(void* ptr);
-
-private:
- Peer* m_peer;
-};
-
-class Connection;
-
-typedef enum {
- MIN_RTT,
- MAX_RTT,
- AVG_RTT,
- MIN_JITTER,
- MAX_JITTER,
- AVG_JITTER
-} rtt_stat_type;
-
-typedef enum {
- CUR_DL_RATE,
- AVG_DL_RATE,
- CUR_INC_RATE,
- AVG_INC_RATE,
- CUR_LOSS_RATE,
- AVG_LOSS_RATE,
-} rate_stat_type;
-
-class Peer {
- public:
- friend class PeerHelper;
-
- Peer(Address address_,u16 id_,Connection* connection) :
- id(id_),
- m_increment_packets_remaining(9),
- m_increment_bytes_remaining(0),
- m_pending_deletion(false),
- m_connection(connection),
- address(address_),
- m_ping_timer(0.0),
- m_last_rtt(-1.0),
- m_usage(0),
- m_timeout_counter(0.0),
- m_last_timeout_check(porting::getTimeMs()),
- m_has_sent_with_id(false)
- {
- m_rtt.avg_rtt = -1.0;
- m_rtt.jitter_avg = -1.0;
- m_rtt.jitter_max = 0.0;
- m_rtt.max_rtt = 0.0;
- m_rtt.jitter_min = FLT_MAX;
- m_rtt.min_rtt = FLT_MAX;
- };
-
- virtual ~Peer() {
- JMutexAutoLock usage_lock(m_exclusive_access_mutex);
- assert(m_usage == 0);
- };
-
- // Unique id of the peer
- u16 id;
-
- void Drop();
-
- virtual void PutReliableSendCommand(ConnectionCommand &c,
- unsigned int max_packet_size) {};
-
- virtual bool isActive() { return false; };
-
- virtual bool getAddress(MTProtocols type, Address& toset) = 0;
-
- void ResetTimeout()
- {JMutexAutoLock lock(m_exclusive_access_mutex); m_timeout_counter=0.0; };
-
- bool isTimedOut(float timeout);
-
- void setSentWithID()
- { JMutexAutoLock lock(m_exclusive_access_mutex); m_has_sent_with_id = true; };
-
- bool hasSentWithID()
- { JMutexAutoLock lock(m_exclusive_access_mutex); return m_has_sent_with_id; };
-
- unsigned int m_increment_packets_remaining;
- unsigned int m_increment_bytes_remaining;
-
- virtual u16 getNextSplitSequenceNumber(u8 channel) { return 0; };
- virtual void setNextSplitSequenceNumber(u8 channel, u16 seqnum) {};
- virtual SharedBuffer<u8> addSpiltPacket(u8 channel,
- BufferedPacket toadd,
- bool reliable)
- {
- fprintf(stderr,"Peer: addSplitPacket called, this is supposed to be never called!\n");
- return SharedBuffer<u8>(0);
- };
-
- virtual bool Ping(float dtime, SharedBuffer<u8>& data) { return false; };
-
- virtual float getStat(rtt_stat_type type) const {
- switch (type) {
- case MIN_RTT:
- return m_rtt.min_rtt;
- case MAX_RTT:
- return m_rtt.max_rtt;
- case AVG_RTT:
- return m_rtt.avg_rtt;
- case MIN_JITTER:
- return m_rtt.jitter_min;
- case MAX_JITTER:
- return m_rtt.jitter_max;
- case AVG_JITTER:
- return m_rtt.jitter_avg;
- }
- return -1;
- }
- protected:
- virtual void reportRTT(float rtt) {};
-
- void RTTStatistics(float rtt,
- std::string profiler_id="",
- unsigned int num_samples=1000);
-
- bool IncUseCount();
- void DecUseCount();
-
- JMutex m_exclusive_access_mutex;
-
- bool m_pending_deletion;
-
- Connection* m_connection;
-
- // Address of the peer
- Address address;
-
- // Ping timer
- float m_ping_timer;
- private:
-
- struct rttstats {
- float jitter_min;
- float jitter_max;
- float jitter_avg;
- float min_rtt;
- float max_rtt;
- float avg_rtt;
- };
-
- rttstats m_rtt;
- float m_last_rtt;
-
- // current usage count
- unsigned int m_usage;
-
- // Seconds from last receive
- float m_timeout_counter;
-
- u32 m_last_timeout_check;
-
- bool m_has_sent_with_id;
-};
-
-class UDPPeer : public Peer
-{
-public:
-
- friend class PeerHelper;
- friend class ConnectionReceiveThread;
- friend class ConnectionSendThread;
- friend class Connection;
-
- UDPPeer(u16 a_id, Address a_address, Connection* connection);
- virtual ~UDPPeer() {};
-
- void PutReliableSendCommand(ConnectionCommand &c,
- unsigned int max_packet_size);
-
- bool isActive()
- { return ((hasSentWithID()) && (!m_pending_deletion)); };
-
- bool getAddress(MTProtocols type, Address& toset);
-
- void setNonLegacyPeer();
-
- bool getLegacyPeer()
- { return m_legacy_peer; }
-
- u16 getNextSplitSequenceNumber(u8 channel);
- void setNextSplitSequenceNumber(u8 channel, u16 seqnum);
-
- SharedBuffer<u8> addSpiltPacket(u8 channel,
- BufferedPacket toadd,
- bool reliable);
-
-
-protected:
- /*
- Calculates avg_rtt and resend_timeout.
- rtt=-1 only recalculates resend_timeout
- */
- void reportRTT(float rtt);
-
- void RunCommandQueues(
- unsigned int max_packet_size,
- unsigned int maxcommands,
- unsigned int maxtransfer);
-
- float getResendTimeout()
- { JMutexAutoLock lock(m_exclusive_access_mutex); return resend_timeout; }
-
- void setResendTimeout(float timeout)
- { JMutexAutoLock lock(m_exclusive_access_mutex); resend_timeout = timeout; }
- bool Ping(float dtime,SharedBuffer<u8>& data);
-
- Channel channels[CHANNEL_COUNT];
- bool m_pending_disconnect;
-private:
- // This is changed dynamically
- float resend_timeout;
-
- bool processReliableSendCommand(
- ConnectionCommand &c,
- unsigned int max_packet_size);
-
- bool m_legacy_peer;
-};
-
-/*
- Connection
-*/
-
-enum ConnectionEventType{
- CONNEVENT_NONE,
- CONNEVENT_DATA_RECEIVED,
- CONNEVENT_PEER_ADDED,
- CONNEVENT_PEER_REMOVED,
- CONNEVENT_BIND_FAILED,
-};
-
-struct ConnectionEvent
-{
- enum ConnectionEventType type;
- u16 peer_id;
- Buffer<u8> data;
- bool timeout;
- Address address;
-
- ConnectionEvent(): type(CONNEVENT_NONE) {}
-
- std::string describe()
- {
- switch(type){
- case CONNEVENT_NONE:
- return "CONNEVENT_NONE";
- case CONNEVENT_DATA_RECEIVED:
- return "CONNEVENT_DATA_RECEIVED";
- case CONNEVENT_PEER_ADDED:
- return "CONNEVENT_PEER_ADDED";
- case CONNEVENT_PEER_REMOVED:
- return "CONNEVENT_PEER_REMOVED";
- case CONNEVENT_BIND_FAILED:
- return "CONNEVENT_BIND_FAILED";
- }
- return "Invalid ConnectionEvent";
- }
-
- void dataReceived(u16 peer_id_, SharedBuffer<u8> data_)
- {
- type = CONNEVENT_DATA_RECEIVED;
- peer_id = peer_id_;
- data = data_;
- }
- void peerAdded(u16 peer_id_, Address address_)
- {
- type = CONNEVENT_PEER_ADDED;
- peer_id = peer_id_;
- address = address_;
- }
- void peerRemoved(u16 peer_id_, bool timeout_, Address address_)
- {
- type = CONNEVENT_PEER_REMOVED;
- peer_id = peer_id_;
- timeout = timeout_;
- address = address_;
- }
- void bindFailed()
- {
- type = CONNEVENT_BIND_FAILED;
- }
-};
-
-class ConnectionSendThread : public JThread {
-
-public:
- friend class UDPPeer;
-
- ConnectionSendThread(unsigned int max_packet_size, float timeout);
-
- void * Thread ();
-
- void Trigger();
-
- void setParent(Connection* parent) {
- assert(parent != NULL);
- m_connection = parent;
- }
-
- void setPeerTimeout(float peer_timeout)
- { m_timeout = peer_timeout; }
-
-private:
- void runTimeouts (float dtime);
- void rawSend (const BufferedPacket &packet);
- bool rawSendAsPacket(u16 peer_id, u8 channelnum,
- SharedBuffer<u8> data, bool reliable);
-
- void processReliableCommand (ConnectionCommand &c);
- void processNonReliableCommand (ConnectionCommand &c);
- void serve (Address bind_address);
- void connect (Address address);
- void disconnect ();
- void disconnect_peer(u16 peer_id);
- void send (u16 peer_id, u8 channelnum,
- SharedBuffer<u8> data);
- void sendReliable (ConnectionCommand &c);
- void sendToAll (u8 channelnum,
- SharedBuffer<u8> data);
- void sendToAllReliable(ConnectionCommand &c);
-
- void sendPackets (float dtime);
-
- void sendAsPacket (u16 peer_id, u8 channelnum,
- SharedBuffer<u8> data,bool ack=false);
-
- void sendAsPacketReliable(BufferedPacket& p, Channel* channel);
-
- bool packetsQueued();
-
- Connection* m_connection;
- unsigned int m_max_packet_size;
- float m_timeout;
- Queue<OutgoingPacket> m_outgoing_queue;
- JSemaphore m_send_sleep_semaphore;
-
- unsigned int m_iteration_packets_avaialble;
- unsigned int m_max_commands_per_iteration;
- unsigned int m_max_data_packets_per_iteration;
- unsigned int m_max_packets_requeued;
-};
-
-class ConnectionReceiveThread : public JThread {
-public:
- ConnectionReceiveThread(unsigned int max_packet_size);
-
- void * Thread ();
-
- void setParent(Connection* parent) {
- assert(parent != NULL);
- m_connection = parent;
- }
-
-private:
- void receive ();
-
- // Returns next data from a buffer if possible
- // If found, returns true; if not, false.
- // If found, sets peer_id and dst
- bool getFromBuffers (u16 &peer_id, SharedBuffer<u8> &dst);
-
- bool checkIncomingBuffers(Channel *channel, u16 &peer_id,
- SharedBuffer<u8> &dst);
-
- /*
- Processes a packet with the basic header stripped out.
- Parameters:
- packetdata: Data in packet (with no base headers)
- peer_id: peer id of the sender of the packet in question
- channelnum: channel on which the packet was sent
- reliable: true if recursing into a reliable packet
- */
- SharedBuffer<u8> processPacket(Channel *channel,
- SharedBuffer<u8> packetdata, u16 peer_id,
- u8 channelnum, bool reliable);
-
-
- Connection* m_connection;
-};
-
-class Connection
-{
-public:
- friend class ConnectionSendThread;
- friend class ConnectionReceiveThread;
-
- Connection(u32 protocol_id, u32 max_packet_size, float timeout, bool ipv6);
- Connection(u32 protocol_id, u32 max_packet_size, float timeout, bool ipv6,
- PeerHandler *peerhandler);
- ~Connection();
-
- /* Interface */
- ConnectionEvent getEvent();
- ConnectionEvent waitEvent(u32 timeout_ms);
- void putCommand(ConnectionCommand &c);
-
- void SetTimeoutMs(int timeout){ m_bc_receive_timeout = timeout; }
- void Serve(Address bind_addr);
- void Connect(Address address);
- bool Connected();
- void Disconnect();
- u32 Receive(u16 &peer_id, SharedBuffer<u8> &data);
- void SendToAll(u8 channelnum, SharedBuffer<u8> data, bool reliable);
- void Send(u16 peer_id, u8 channelnum, SharedBuffer<u8> data, bool reliable);
- u16 GetPeerID(){ return m_peer_id; }
- Address GetPeerAddress(u16 peer_id);
- float getPeerStat(u16 peer_id, rtt_stat_type type);
- float getLocalStat(rate_stat_type type);
- const u32 GetProtocolID() const { return m_protocol_id; };
- const std::string getDesc();
- void DisconnectPeer(u16 peer_id);
-
-protected:
- PeerHelper getPeer(u16 peer_id);
- PeerHelper getPeerNoEx(u16 peer_id);
- u16 lookupPeer(Address& sender);
-
- u16 createPeer(Address& sender, MTProtocols protocol, int fd);
- UDPPeer* createServerPeer(Address& sender);
- bool deletePeer(u16 peer_id, bool timeout);
-
- void SetPeerID(u16 id){ m_peer_id = id; }
-
- void sendAck(u16 peer_id, u8 channelnum, u16 seqnum);
-
- void PrintInfo(std::ostream &out);
- void PrintInfo();
-
- std::list<u16> getPeerIDs();
-
- UDPSocket m_udpSocket;
- MutexedQueue<ConnectionCommand> m_command_queue;
-
- void putEvent(ConnectionEvent &e);
-
- void TriggerSend()
- { m_sendThread.Trigger(); }
-private:
- std::list<Peer*> getPeers();
-
- MutexedQueue<ConnectionEvent> m_event_queue;
-
- u16 m_peer_id;
- u32 m_protocol_id;
-
- std::map<u16, Peer*> m_peers;
- JMutex m_peers_mutex;
-
- ConnectionSendThread m_sendThread;
- ConnectionReceiveThread m_receiveThread;
-
- JMutex m_info_mutex;
-
- // Backwards compatibility
- PeerHandler *m_bc_peerhandler;
- int m_bc_receive_timeout;
-
- bool m_shutting_down;
-
- u16 m_next_remote_peer_id;
-};
-
-} // namespace
-
-#endif
-
{ "TOCLIENT_LOCAL_PLAYER_ANIMATIONS", TOCLIENT_STATE_CONNECTED, &Client::handleCommand_LocalPlayerAnimations }, // 0x51
{ "TOCLIENT_EYE_OFFSET", TOCLIENT_STATE_CONNECTED, &Client::handleCommand_EyeOffset }, // 0x52
};
+
+const static ServerCommandFactory null_command_factory = { "TOSERVER_NULL", 0, false };
+
+const ServerCommandFactory serverCommandFactoryTable[TOSERVER_NUM_MSG_TYPES] =
+{
+ null_command_factory, // 0x00
+ null_command_factory, // 0x01
+ null_command_factory, // 0x02
+ null_command_factory, // 0x03
+ null_command_factory, // 0x04
+ null_command_factory, // 0x05
+ null_command_factory, // 0x06
+ null_command_factory, // 0x07
+ null_command_factory, // 0x08
+ null_command_factory, // 0x09
+ null_command_factory, // 0x0a
+ null_command_factory, // 0x0b
+ null_command_factory, // 0x0c
+ null_command_factory, // 0x0d
+ null_command_factory, // 0x0e
+ null_command_factory, // 0x0f
+ { "TOSERVER_INIT", 1, false }, // 0x10
+ { "TOSERVER_INIT2", 1, true }, // 0x11
+ null_command_factory, // 0x12
+ null_command_factory, // 0x13
+ null_command_factory, // 0x14
+ null_command_factory, // 0x15
+ null_command_factory, // 0x16
+ null_command_factory, // 0x17
+ null_command_factory, // 0x18
+ null_command_factory, // 0x19
+ null_command_factory, // 0x1a
+ null_command_factory, // 0x1b
+ null_command_factory, // 0x1c
+ null_command_factory, // 0x1d
+ null_command_factory, // 0x1e
+ null_command_factory, // 0x1f
+ null_command_factory, // 0x20
+ null_command_factory, // 0x21
+ null_command_factory, // 0x22
+ { "TOSERVER_PLAYERPOS", 0, false }, // 0x23
+ { "TOSERVER_GOTBLOCKS", 2, true }, // 0x24
+ { "TOSERVER_DELETEDBLOCKS", 2, true }, // 0x25
+ null_command_factory, // 0x26
+ { "TOSERVER_CLICK_OBJECT", 0, false }, // 0x27
+ { "TOSERVER_GROUND_ACTION", 0, false }, // 0x28
+ { "TOSERVER_RELEASE", 0, false }, // 0x29
+ null_command_factory, // 0x2a
+ null_command_factory, // 0x2b
+ null_command_factory, // 0x2c
+ null_command_factory, // 0x2d
+ null_command_factory, // 0x2e
+ null_command_factory, // 0x2f
+ { "TOSERVER_SIGNTEXT", 0, false }, // 0x30
+ { "TOSERVER_INVENTORY_ACTION", 0, true }, // 0x31
+ { "TOSERVER_CHAT_MESSAGE", 0, true }, // 0x32
+ { "TOSERVER_SIGNNODETEXT", 0, false }, // 0x33
+ { "TOSERVER_CLICK_ACTIVEOBJECT", 0, false }, // 0x34
+ { "TOSERVER_DAMAGE", 0, true }, // 0x35
+ { "TOSERVER_PASSWORD", 0, true }, // 0x36
+ { "TOSERVER_PLAYERITEM", 0, true }, // 0x37
+ { "TOSERVER_RESPAWN", 0, true }, // 0x38
+ { "TOSERVER_INTERACT", 0, true }, // 0x39
+ { "TOSERVER_REMOVED_SOUNDS", 1, true }, // 0x3a
+ { "TOSERVER_NODEMETA_FIELDS", 0, true }, // 0x3b
+ { "TOSERVER_INVENTORY_FIELDS", 0, true }, // 0x3c
+ null_command_factory, // 0x3d
+ null_command_factory, // 0x3e
+ null_command_factory, // 0x3f
+ { "TOSERVER_REQUEST_MEDIA", 1, true }, // 0x40
+ { "TOSERVER_RECEIVED_MEDIA", 1, true }, // 0x41
+ { "TOSERVER_BREATH", 0, true }, // 0x42
+ { "TOSERVER_CLIENT_READY", 0, true }, // 0x43
+};
#include "client.h"
#include "networkprotocol.h"
-#include "toclientpacket.h"
+#include "networkpacket.h"
enum ToClientConnectionState {
TOCLIENT_STATE_NOT_CONNECTED,
struct ToClientCommandHandler
{
- char const* name;
+ const char* name;
ToClientConnectionState state;
- void (Client::*handler)(ToClientPacket* pkt);
+ void (Client::*handler)(NetworkPacket* pkt);
+};
+
+struct ServerCommandFactory
+{
+ const char* name;
+ u16 channel;
+ bool reliable;
};
extern const ToClientCommandHandler toClientCommandTable[TOCLIENT_NUM_MSG_TYPES];
+extern const ServerCommandFactory serverCommandFactoryTable[TOSERVER_NUM_MSG_TYPES];
+
#endif
--- /dev/null
+/*
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <iomanip>
+#include <errno.h>
+#include "connection.h"
+#include "main.h"
+#include "serialization.h"
+#include "log.h"
+#include "porting.h"
+#include "util/serialize.h"
+#include "util/numeric.h"
+#include "util/string.h"
+#include "settings.h"
+#include "profiler.h"
+
+namespace con
+{
+
+/******************************************************************************/
+/* defines used for debugging and profiling */
+/******************************************************************************/
+#ifdef NDEBUG
+#define LOG(a) a
+#define PROFILE(a)
+#undef DEBUG_CONNECTION_KBPS
+#else
+/* this mutex is used to achieve log message consistency */
+JMutex log_message_mutex;
+#define LOG(a) \
+ { \
+ JMutexAutoLock loglock(log_message_mutex); \
+ a; \
+ }
+#define PROFILE(a) a
+//#define DEBUG_CONNECTION_KBPS
+#undef DEBUG_CONNECTION_KBPS
+#endif
+
+
+static inline float CALC_DTIME(unsigned int lasttime, unsigned int curtime) {
+ float value = ( curtime - lasttime) / 1000.0;
+ return MYMAX(MYMIN(value,0.1),0.0);
+}
+
+/* maximum window size to use, 0xFFFF is theoretical maximum don't think about
+ * touching it, the less you're away from it the more likely data corruption
+ * will occur
+ */
+#define MAX_RELIABLE_WINDOW_SIZE 0x8000
+ /* starting value for window size */
+#define MIN_RELIABLE_WINDOW_SIZE 0x40
+
+#define MAX_UDP_PEERS 65535
+
+#define PING_TIMEOUT 5.0
+
+static u16 readPeerId(u8 *packetdata)
+{
+ return readU16(&packetdata[4]);
+}
+static u8 readChannel(u8 *packetdata)
+{
+ return readU8(&packetdata[6]);
+}
+
+BufferedPacket makePacket(Address &address, u8 *data, u32 datasize,
+ u32 protocol_id, u16 sender_peer_id, u8 channel)
+{
+ u32 packet_size = datasize + BASE_HEADER_SIZE;
+ BufferedPacket p(packet_size);
+ p.address = address;
+
+ writeU32(&p.data[0], protocol_id);
+ writeU16(&p.data[4], sender_peer_id);
+ writeU8(&p.data[6], channel);
+
+ memcpy(&p.data[BASE_HEADER_SIZE], data, datasize);
+
+ return p;
+}
+
+BufferedPacket makePacket(Address &address, SharedBuffer<u8> &data,
+ u32 protocol_id, u16 sender_peer_id, u8 channel)
+{
+ return makePacket(address, *data, data.getSize(),
+ protocol_id, sender_peer_id, channel);
+}
+
+SharedBuffer<u8> makeOriginalPacket(
+ SharedBuffer<u8> data)
+{
+ u32 header_size = 1;
+ u32 packet_size = data.getSize() + header_size;
+ SharedBuffer<u8> b(packet_size);
+
+ writeU8(&(b[0]), TYPE_ORIGINAL);
+ if (data.getSize() > 0) {
+ memcpy(&(b[header_size]), *data, data.getSize());
+ }
+ return b;
+}
+
+std::list<SharedBuffer<u8> > makeSplitPacket(
+ SharedBuffer<u8> data,
+ u32 chunksize_max,
+ u16 seqnum)
+{
+ // Chunk packets, containing the TYPE_SPLIT header
+ std::list<SharedBuffer<u8> > chunks;
+
+ u32 chunk_header_size = 7;
+ u32 maximum_data_size = chunksize_max - chunk_header_size;
+ u32 start = 0;
+ u32 end = 0;
+ u32 chunk_num = 0;
+ u16 chunk_count = 0;
+ do{
+ end = start + maximum_data_size - 1;
+ if (end > data.getSize() - 1)
+ end = data.getSize() - 1;
+
+ u32 payload_size = end - start + 1;
+ u32 packet_size = chunk_header_size + payload_size;
+
+ SharedBuffer<u8> chunk(packet_size);
+
+ writeU8(&chunk[0], TYPE_SPLIT);
+ writeU16(&chunk[1], seqnum);
+ // [3] u16 chunk_count is written at next stage
+ writeU16(&chunk[5], chunk_num);
+ memcpy(&chunk[chunk_header_size], &data[start], payload_size);
+
+ chunks.push_back(chunk);
+ chunk_count++;
+
+ start = end + 1;
+ chunk_num++;
+ }
+ while(end != data.getSize() - 1);
+
+ for(std::list<SharedBuffer<u8> >::iterator i = chunks.begin();
+ i != chunks.end(); ++i)
+ {
+ // Write chunk_count
+ writeU16(&((*i)[3]), chunk_count);
+ }
+
+ return chunks;
+}
+
+std::list<SharedBuffer<u8> > makeAutoSplitPacket(
+ SharedBuffer<u8> data,
+ u32 chunksize_max,
+ u16 &split_seqnum)
+{
+ u32 original_header_size = 1;
+ std::list<SharedBuffer<u8> > list;
+ if (data.getSize() + original_header_size > chunksize_max)
+ {
+ list = makeSplitPacket(data, chunksize_max, split_seqnum);
+ split_seqnum++;
+ return list;
+ }
+ else
+ {
+ list.push_back(makeOriginalPacket(data));
+ }
+ return list;
+}
+
+SharedBuffer<u8> makeReliablePacket(
+ SharedBuffer<u8> data,
+ u16 seqnum)
+{
+ u32 header_size = 3;
+ u32 packet_size = data.getSize() + header_size;
+ SharedBuffer<u8> b(packet_size);
+
+ writeU8(&b[0], TYPE_RELIABLE);
+ writeU16(&b[1], seqnum);
+
+ memcpy(&b[header_size], *data, data.getSize());
+
+ return b;
+}
+
+/*
+ ReliablePacketBuffer
+*/
+
+ReliablePacketBuffer::ReliablePacketBuffer(): m_list_size(0) {}
+
+void ReliablePacketBuffer::print()
+{
+ JMutexAutoLock listlock(m_list_mutex);
+ LOG(dout_con<<"Dump of ReliablePacketBuffer:" << std::endl);
+ unsigned int index = 0;
+ for(std::list<BufferedPacket>::iterator i = m_list.begin();
+ i != m_list.end();
+ ++i)
+ {
+ u16 s = readU16(&(i->data[BASE_HEADER_SIZE+1]));
+ LOG(dout_con<<index<< ":" << s << std::endl);
+ index++;
+ }
+}
+bool ReliablePacketBuffer::empty()
+{
+ JMutexAutoLock listlock(m_list_mutex);
+ return m_list.empty();
+}
+
+u32 ReliablePacketBuffer::size()
+{
+ return m_list_size;
+}
+
+bool ReliablePacketBuffer::containsPacket(u16 seqnum)
+{
+ return !(findPacket(seqnum) == m_list.end());
+}
+
+RPBSearchResult ReliablePacketBuffer::findPacket(u16 seqnum)
+{
+ std::list<BufferedPacket>::iterator i = m_list.begin();
+ for(; i != m_list.end(); ++i)
+ {
+ u16 s = readU16(&(i->data[BASE_HEADER_SIZE+1]));
+ /*dout_con<<"findPacket(): finding seqnum="<<seqnum
+ <<", comparing to s="<<s<<std::endl;*/
+ if (s == seqnum)
+ break;
+ }
+ return i;
+}
+RPBSearchResult ReliablePacketBuffer::notFound()
+{
+ return m_list.end();
+}
+bool ReliablePacketBuffer::getFirstSeqnum(u16& result)
+{
+ JMutexAutoLock listlock(m_list_mutex);
+ if (m_list.empty())
+ return false;
+ BufferedPacket p = *m_list.begin();
+ result = readU16(&p.data[BASE_HEADER_SIZE+1]);
+ return true;
+}
+
+BufferedPacket ReliablePacketBuffer::popFirst()
+{
+ JMutexAutoLock listlock(m_list_mutex);
+ if (m_list.empty())
+ throw NotFoundException("Buffer is empty");
+ BufferedPacket p = *m_list.begin();
+ m_list.erase(m_list.begin());
+ --m_list_size;
+
+ if (m_list_size == 0) {
+ m_oldest_non_answered_ack = 0;
+ } else {
+ m_oldest_non_answered_ack =
+ readU16(&(*m_list.begin()).data[BASE_HEADER_SIZE+1]);
+ }
+ return p;
+}
+BufferedPacket ReliablePacketBuffer::popSeqnum(u16 seqnum)
+{
+ JMutexAutoLock listlock(m_list_mutex);
+ RPBSearchResult r = findPacket(seqnum);
+ if (r == notFound()) {
+ LOG(dout_con<<"Sequence number: " << seqnum
+ << " not found in reliable buffer"<<std::endl);
+ throw NotFoundException("seqnum not found in buffer");
+ }
+ BufferedPacket p = *r;
+
+
+ RPBSearchResult next = r;
+ next++;
+ if (next != notFound()) {
+ u16 s = readU16(&(next->data[BASE_HEADER_SIZE+1]));
+ m_oldest_non_answered_ack = s;
+ }
+
+ m_list.erase(r);
+ --m_list_size;
+
+ if (m_list_size == 0)
+ { m_oldest_non_answered_ack = 0; }
+ else
+ { m_oldest_non_answered_ack = readU16(&(*m_list.begin()).data[BASE_HEADER_SIZE+1]); }
+ return p;
+}
+void ReliablePacketBuffer::insert(BufferedPacket &p,u16 next_expected)
+{
+ JMutexAutoLock listlock(m_list_mutex);
+ assert(p.data.getSize() >= BASE_HEADER_SIZE+3);
+ u8 type = readU8(&p.data[BASE_HEADER_SIZE+0]);
+ assert(type == TYPE_RELIABLE);
+ u16 seqnum = readU16(&p.data[BASE_HEADER_SIZE+1]);
+
+ assert(seqnum_in_window(seqnum,next_expected,MAX_RELIABLE_WINDOW_SIZE));
+ assert(seqnum != next_expected);
+
+ ++m_list_size;
+ assert(m_list_size <= SEQNUM_MAX+1);
+
+ // Find the right place for the packet and insert it there
+ // If list is empty, just add it
+ if (m_list.empty())
+ {
+ m_list.push_back(p);
+ m_oldest_non_answered_ack = seqnum;
+ // Done.
+ return;
+ }
+
+ // Otherwise find the right place
+ std::list<BufferedPacket>::iterator i = m_list.begin();
+ // Find the first packet in the list which has a higher seqnum
+ u16 s = readU16(&(i->data[BASE_HEADER_SIZE+1]));
+
+ /* case seqnum is smaller then next_expected seqnum */
+ /* this is true e.g. on wrap around */
+ if (seqnum < next_expected) {
+ while(((s < seqnum) || (s >= next_expected)) && (i != m_list.end())) {
+ i++;
+ if (i != m_list.end())
+ s = readU16(&(i->data[BASE_HEADER_SIZE+1]));
+ }
+ }
+ /* non wrap around case (at least for incoming and next_expected */
+ else
+ {
+ while(((s < seqnum) && (s >= next_expected)) && (i != m_list.end())) {
+ i++;
+ if (i != m_list.end())
+ s = readU16(&(i->data[BASE_HEADER_SIZE+1]));
+ }
+ }
+
+ if (s == seqnum) {
+ if (
+ (readU16(&(i->data[BASE_HEADER_SIZE+1])) != seqnum) ||
+ (i->data.getSize() != p.data.getSize()) ||
+ (i->address != p.address)
+ )
+ {
+ /* if this happens your maximum transfer window may be to big */
+ fprintf(stderr,
+ "Duplicated seqnum %d non matching packet detected:\n",
+ seqnum);
+ fprintf(stderr, "Old: seqnum: %05d size: %04d, address: %s\n",
+ readU16(&(i->data[BASE_HEADER_SIZE+1])),i->data.getSize(),
+ i->address.serializeString().c_str());
+ fprintf(stderr, "New: seqnum: %05d size: %04u, address: %s\n",
+ readU16(&(p.data[BASE_HEADER_SIZE+1])),p.data.getSize(),
+ p.address.serializeString().c_str());
+ throw IncomingDataCorruption("duplicated packet isn't same as original one");
+ }
+
+ assert(readU16(&(i->data[BASE_HEADER_SIZE+1])) == seqnum);
+ assert(i->data.getSize() == p.data.getSize());
+ assert(i->address == p.address);
+
+ /* nothing to do this seems to be a resent packet */
+ /* for paranoia reason data should be compared */
+ --m_list_size;
+ }
+ /* insert or push back */
+ else if (i != m_list.end()) {
+ m_list.insert(i, p);
+ }
+ else {
+ m_list.push_back(p);
+ }
+
+ /* update last packet number */
+ m_oldest_non_answered_ack = readU16(&(*m_list.begin()).data[BASE_HEADER_SIZE+1]);
+}
+
+void ReliablePacketBuffer::incrementTimeouts(float dtime)
+{
+ JMutexAutoLock listlock(m_list_mutex);
+ for(std::list<BufferedPacket>::iterator i = m_list.begin();
+ i != m_list.end(); ++i)
+ {
+ i->time += dtime;
+ i->totaltime += dtime;
+ }
+}
+
+std::list<BufferedPacket> ReliablePacketBuffer::getTimedOuts(float timeout,
+ unsigned int max_packets)
+{
+ JMutexAutoLock listlock(m_list_mutex);
+ std::list<BufferedPacket> timed_outs;
+ for(std::list<BufferedPacket>::iterator i = m_list.begin();
+ i != m_list.end(); ++i)
+ {
+ if (i->time >= timeout) {
+ timed_outs.push_back(*i);
+
+ //this packet will be sent right afterwards reset timeout here
+ i->time = 0.0;
+ if (timed_outs.size() >= max_packets)
+ break;
+ }
+ }
+ return timed_outs;
+}
+
+/*
+ IncomingSplitBuffer
+*/
+
+IncomingSplitBuffer::~IncomingSplitBuffer()
+{
+ JMutexAutoLock listlock(m_map_mutex);
+ for(std::map<u16, IncomingSplitPacket*>::iterator i = m_buf.begin();
+ i != m_buf.end(); ++i)
+ {
+ delete i->second;
+ }
+}
+/*
+ This will throw a GotSplitPacketException when a full
+ split packet is constructed.
+*/
+SharedBuffer<u8> IncomingSplitBuffer::insert(BufferedPacket &p, bool reliable)
+{
+ JMutexAutoLock listlock(m_map_mutex);
+ u32 headersize = BASE_HEADER_SIZE + 7;
+ assert(p.data.getSize() >= headersize);
+ u8 type = readU8(&p.data[BASE_HEADER_SIZE+0]);
+ assert(type == TYPE_SPLIT);
+ u16 seqnum = readU16(&p.data[BASE_HEADER_SIZE+1]);
+ u16 chunk_count = readU16(&p.data[BASE_HEADER_SIZE+3]);
+ u16 chunk_num = readU16(&p.data[BASE_HEADER_SIZE+5]);
+
+ // Add if doesn't exist
+ if (m_buf.find(seqnum) == m_buf.end())
+ {
+ IncomingSplitPacket *sp = new IncomingSplitPacket();
+ sp->chunk_count = chunk_count;
+ sp->reliable = reliable;
+ m_buf[seqnum] = sp;
+ }
+
+ IncomingSplitPacket *sp = m_buf[seqnum];
+
+ // TODO: These errors should be thrown or something? Dunno.
+ if (chunk_count != sp->chunk_count)
+ LOG(derr_con<<"Connection: WARNING: chunk_count="<<chunk_count
+ <<" != sp->chunk_count="<<sp->chunk_count
+ <<std::endl);
+ if (reliable != sp->reliable)
+ LOG(derr_con<<"Connection: WARNING: reliable="<<reliable
+ <<" != sp->reliable="<<sp->reliable
+ <<std::endl);
+
+ // If chunk already exists, ignore it.
+ // Sometimes two identical packets may arrive when there is network
+ // lag and the server re-sends stuff.
+ if (sp->chunks.find(chunk_num) != sp->chunks.end())
+ return SharedBuffer<u8>();
+
+ // Cut chunk data out of packet
+ u32 chunkdatasize = p.data.getSize() - headersize;
+ SharedBuffer<u8> chunkdata(chunkdatasize);
+ memcpy(*chunkdata, &(p.data[headersize]), chunkdatasize);
+
+ // Set chunk data in buffer
+ sp->chunks[chunk_num] = chunkdata;
+
+ // If not all chunks are received, return empty buffer
+ if (sp->allReceived() == false)
+ return SharedBuffer<u8>();
+
+ // Calculate total size
+ u32 totalsize = 0;
+ for(std::map<u16, SharedBuffer<u8> >::iterator i = sp->chunks.begin();
+ i != sp->chunks.end(); ++i)
+ {
+ totalsize += i->second.getSize();
+ }
+
+ SharedBuffer<u8> fulldata(totalsize);
+
+ // Copy chunks to data buffer
+ u32 start = 0;
+ for(u32 chunk_i=0; chunk_i<sp->chunk_count;
+ chunk_i++)
+ {
+ SharedBuffer<u8> buf = sp->chunks[chunk_i];
+ u16 chunkdatasize = buf.getSize();
+ memcpy(&fulldata[start], *buf, chunkdatasize);
+ start += chunkdatasize;;
+ }
+
+ // Remove sp from buffer
+ m_buf.erase(seqnum);
+ delete sp;
+
+ return fulldata;
+}
+void IncomingSplitBuffer::removeUnreliableTimedOuts(float dtime, float timeout)
+{
+ std::list<u16> remove_queue;
+ {
+ JMutexAutoLock listlock(m_map_mutex);
+ for(std::map<u16, IncomingSplitPacket*>::iterator i = m_buf.begin();
+ i != m_buf.end(); ++i)
+ {
+ IncomingSplitPacket *p = i->second;
+ // Reliable ones are not removed by timeout
+ if (p->reliable == true)
+ continue;
+ p->time += dtime;
+ if (p->time >= timeout)
+ remove_queue.push_back(i->first);
+ }
+ }
+ for(std::list<u16>::iterator j = remove_queue.begin();
+ j != remove_queue.end(); ++j)
+ {
+ JMutexAutoLock listlock(m_map_mutex);
+ LOG(dout_con<<"NOTE: Removing timed out unreliable split packet"<<std::endl);
+ delete m_buf[*j];
+ m_buf.erase(*j);
+ }
+}
+
+/*
+ Channel
+*/
+
+Channel::Channel() :
+ window_size(MIN_RELIABLE_WINDOW_SIZE),
+ next_incoming_seqnum(SEQNUM_INITIAL),
+ next_outgoing_seqnum(SEQNUM_INITIAL),
+ next_outgoing_split_seqnum(SEQNUM_INITIAL),
+ current_packet_loss(0),
+ current_packet_too_late(0),
+ current_packet_successfull(0),
+ packet_loss_counter(0),
+ current_bytes_transfered(0),
+ current_bytes_received(0),
+ current_bytes_lost(0),
+ max_kbps(0.0),
+ cur_kbps(0.0),
+ avg_kbps(0.0),
+ max_incoming_kbps(0.0),
+ cur_incoming_kbps(0.0),
+ avg_incoming_kbps(0.0),
+ max_kbps_lost(0.0),
+ cur_kbps_lost(0.0),
+ avg_kbps_lost(0.0),
+ bpm_counter(0.0),
+ rate_samples(0)
+{
+}
+
+Channel::~Channel()
+{
+}
+
+u16 Channel::readNextIncomingSeqNum()
+{
+ JMutexAutoLock internal(m_internal_mutex);
+ return next_incoming_seqnum;
+}
+
+u16 Channel::incNextIncomingSeqNum()
+{
+ JMutexAutoLock internal(m_internal_mutex);
+ u16 retval = next_incoming_seqnum;
+ next_incoming_seqnum++;
+ return retval;
+}
+
+u16 Channel::readNextSplitSeqNum()
+{
+ JMutexAutoLock internal(m_internal_mutex);
+ return next_outgoing_split_seqnum;
+}
+void Channel::setNextSplitSeqNum(u16 seqnum)
+{
+ JMutexAutoLock internal(m_internal_mutex);
+ next_outgoing_split_seqnum = seqnum;
+}
+
+u16 Channel::getOutgoingSequenceNumber(bool& successfull)
+{
+ JMutexAutoLock internal(m_internal_mutex);
+ u16 retval = next_outgoing_seqnum;
+ u16 lowest_unacked_seqnumber;
+
+ /* shortcut if there ain't any packet in outgoing list */
+ if (outgoing_reliables_sent.empty())
+ {
+ next_outgoing_seqnum++;
+ return retval;
+ }
+
+ if (outgoing_reliables_sent.getFirstSeqnum(lowest_unacked_seqnumber))
+ {
+ if (lowest_unacked_seqnumber < next_outgoing_seqnum) {
+ // ugly cast but this one is required in order to tell compiler we
+ // know about difference of two unsigned may be negative in general
+ // but we already made sure it won't happen in this case
+ if (((u16)(next_outgoing_seqnum - lowest_unacked_seqnumber)) > window_size) {
+ successfull = false;
+ return 0;
+ }
+ }
+ else {
+ // ugly cast but this one is required in order to tell compiler we
+ // know about difference of two unsigned may be negative in general
+ // but we already made sure it won't happen in this case
+ if ((next_outgoing_seqnum + (u16)(SEQNUM_MAX - lowest_unacked_seqnumber)) >
+ window_size) {
+ successfull = false;
+ return 0;
+ }
+ }
+ }
+
+ next_outgoing_seqnum++;
+ return retval;
+}
+
+u16 Channel::readOutgoingSequenceNumber()
+{
+ JMutexAutoLock internal(m_internal_mutex);
+ return next_outgoing_seqnum;
+}
+
+bool Channel::putBackSequenceNumber(u16 seqnum)
+{
+ if (((seqnum + 1) % (SEQNUM_MAX+1)) == next_outgoing_seqnum) {
+
+ next_outgoing_seqnum = seqnum;
+ return true;
+ }
+ return false;
+}
+
+void Channel::UpdateBytesSent(unsigned int bytes, unsigned int packets)
+{
+ JMutexAutoLock internal(m_internal_mutex);
+ current_bytes_transfered += bytes;
+ current_packet_successfull += packets;
+}
+
+void Channel::UpdateBytesReceived(unsigned int bytes) {
+ JMutexAutoLock internal(m_internal_mutex);
+ current_bytes_received += bytes;
+}
+
+void Channel::UpdateBytesLost(unsigned int bytes)
+{
+ JMutexAutoLock internal(m_internal_mutex);
+ current_bytes_lost += bytes;
+}
+
+
+void Channel::UpdatePacketLossCounter(unsigned int count)
+{
+ JMutexAutoLock internal(m_internal_mutex);
+ current_packet_loss += count;
+}
+
+void Channel::UpdatePacketTooLateCounter()
+{
+ JMutexAutoLock internal(m_internal_mutex);
+ current_packet_too_late++;
+}
+
+void Channel::UpdateTimers(float dtime,bool legacy_peer)
+{
+ bpm_counter += dtime;
+ packet_loss_counter += dtime;
+
+ if (packet_loss_counter > 1.0)
+ {
+ packet_loss_counter -= 1.0;
+
+ unsigned int packet_loss = 11; /* use a neutral value for initialization */
+ unsigned int packets_successfull = 0;
+ //unsigned int packet_too_late = 0;
+
+ bool reasonable_amount_of_data_transmitted = false;
+
+ {
+ JMutexAutoLock internal(m_internal_mutex);
+ packet_loss = current_packet_loss;
+ //packet_too_late = current_packet_too_late;
+ packets_successfull = current_packet_successfull;
+
+ if (current_bytes_transfered > (unsigned int) (window_size*512/2))
+ {
+ reasonable_amount_of_data_transmitted = true;
+ }
+ current_packet_loss = 0;
+ current_packet_too_late = 0;
+ current_packet_successfull = 0;
+ }
+
+ /* dynamic window size is only available for non legacy peers */
+ if (!legacy_peer) {
+ float successfull_to_lost_ratio = 0.0;
+ bool done = false;
+
+ if (packets_successfull > 0) {
+ successfull_to_lost_ratio = packet_loss/packets_successfull;
+ }
+ else if (packet_loss > 0)
+ {
+ window_size = MYMAX(
+ (window_size - 10),
+ MIN_RELIABLE_WINDOW_SIZE);
+ done = true;
+ }
+
+ if (!done)
+ {
+ if ((successfull_to_lost_ratio < 0.01) &&
+ (window_size < MAX_RELIABLE_WINDOW_SIZE))
+ {
+ /* don't even think about increasing if we didn't even
+ * use major parts of our window */
+ if (reasonable_amount_of_data_transmitted)
+ window_size = MYMIN(
+ (window_size + 100),
+ MAX_RELIABLE_WINDOW_SIZE);
+ }
+ else if ((successfull_to_lost_ratio < 0.05) &&
+ (window_size < MAX_RELIABLE_WINDOW_SIZE))
+ {
+ /* don't even think about increasing if we didn't even
+ * use major parts of our window */
+ if (reasonable_amount_of_data_transmitted)
+ window_size = MYMIN(
+ (window_size + 50),
+ MAX_RELIABLE_WINDOW_SIZE);
+ }
+ else if (successfull_to_lost_ratio > 0.15)
+ {
+ window_size = MYMAX(
+ (window_size - 100),
+ MIN_RELIABLE_WINDOW_SIZE);
+ }
+ else if (successfull_to_lost_ratio > 0.1)
+ {
+ window_size = MYMAX(
+ (window_size - 50),
+ MIN_RELIABLE_WINDOW_SIZE);
+ }
+ }
+ }
+ }
+
+ if (bpm_counter > 10.0)
+ {
+ {
+ JMutexAutoLock internal(m_internal_mutex);
+ cur_kbps =
+ (((float) current_bytes_transfered)/bpm_counter)/1024.0;
+ current_bytes_transfered = 0;
+ cur_kbps_lost =
+ (((float) current_bytes_lost)/bpm_counter)/1024.0;
+ current_bytes_lost = 0;
+ cur_incoming_kbps =
+ (((float) current_bytes_received)/bpm_counter)/1024.0;
+ current_bytes_received = 0;
+ bpm_counter = 0;
+ }
+
+ if (cur_kbps > max_kbps)
+ {
+ max_kbps = cur_kbps;
+ }
+
+ if (cur_kbps_lost > max_kbps_lost)
+ {
+ max_kbps_lost = cur_kbps_lost;
+ }
+
+ if (cur_incoming_kbps > max_incoming_kbps) {
+ max_incoming_kbps = cur_incoming_kbps;
+ }
+
+ rate_samples = MYMIN(rate_samples+1,10);
+ float old_fraction = ((float) (rate_samples-1) )/( (float) rate_samples);
+ avg_kbps = avg_kbps * old_fraction +
+ cur_kbps * (1.0 - old_fraction);
+ avg_kbps_lost = avg_kbps_lost * old_fraction +
+ cur_kbps_lost * (1.0 - old_fraction);
+ avg_incoming_kbps = avg_incoming_kbps * old_fraction +
+ cur_incoming_kbps * (1.0 - old_fraction);
+ }
+}
+
+
+/*
+ Peer
+*/
+
+PeerHelper::PeerHelper() :
+ m_peer(0)
+{}
+
+PeerHelper::PeerHelper(Peer* peer) :
+ m_peer(peer)
+{
+ if (peer != NULL)
+ {
+ if (!peer->IncUseCount())
+ {
+ m_peer = 0;
+ }
+ }
+}
+
+PeerHelper::~PeerHelper()
+{
+ if (m_peer != 0)
+ m_peer->DecUseCount();
+
+ m_peer = 0;
+}
+
+PeerHelper& PeerHelper::operator=(Peer* peer)
+{
+ m_peer = peer;
+ if (peer != NULL)
+ {
+ if (!peer->IncUseCount())
+ {
+ m_peer = 0;
+ }
+ }
+ return *this;
+}
+
+Peer* PeerHelper::operator->() const
+{
+ return m_peer;
+}
+
+Peer* PeerHelper::operator&() const
+{
+ return m_peer;
+}
+
+bool PeerHelper::operator!() {
+ return ! m_peer;
+}
+
+bool PeerHelper::operator!=(void* ptr)
+{
+ return ((void*) m_peer != ptr);
+}
+
+bool Peer::IncUseCount()
+{
+ JMutexAutoLock lock(m_exclusive_access_mutex);
+
+ if (!m_pending_deletion)
+ {
+ this->m_usage++;
+ return true;
+ }
+
+ return false;
+}
+
+void Peer::DecUseCount()
+{
+ {
+ JMutexAutoLock lock(m_exclusive_access_mutex);
+ assert(m_usage > 0);
+ m_usage--;
+
+ if (!((m_pending_deletion) && (m_usage == 0)))
+ return;
+ }
+ delete this;
+}
+
+void Peer::RTTStatistics(float rtt, std::string profiler_id,
+ unsigned int num_samples) {
+
+ if (m_last_rtt > 0) {
+ /* set min max values */
+ if (rtt < m_rtt.min_rtt)
+ m_rtt.min_rtt = rtt;
+ if (rtt >= m_rtt.max_rtt)
+ m_rtt.max_rtt = rtt;
+
+ /* do average calculation */
+ if (m_rtt.avg_rtt < 0.0)
+ m_rtt.avg_rtt = rtt;
+ else
+ m_rtt.avg_rtt = m_rtt.avg_rtt * (num_samples/(num_samples-1)) +
+ rtt * (1/num_samples);
+
+ /* do jitter calculation */
+
+ //just use some neutral value at beginning
+ float jitter = m_rtt.jitter_min;
+
+ if (rtt > m_last_rtt)
+ jitter = rtt-m_last_rtt;
+
+ if (rtt <= m_last_rtt)
+ jitter = m_last_rtt - rtt;
+
+ if (jitter < m_rtt.jitter_min)
+ m_rtt.jitter_min = jitter;
+ if (jitter >= m_rtt.jitter_max)
+ m_rtt.jitter_max = jitter;
+
+ if (m_rtt.jitter_avg < 0.0)
+ m_rtt.jitter_avg = jitter;
+ else
+ m_rtt.jitter_avg = m_rtt.jitter_avg * (num_samples/(num_samples-1)) +
+ jitter * (1/num_samples);
+
+ if (profiler_id != "")
+ {
+ g_profiler->graphAdd(profiler_id + "_rtt", rtt);
+ g_profiler->graphAdd(profiler_id + "_jitter", jitter);
+ }
+ }
+ /* save values required for next loop */
+ m_last_rtt = rtt;
+}
+
+bool Peer::isTimedOut(float timeout)
+{
+ JMutexAutoLock lock(m_exclusive_access_mutex);
+ u32 current_time = porting::getTimeMs();
+
+ float dtime = CALC_DTIME(m_last_timeout_check,current_time);
+ m_last_timeout_check = current_time;
+
+ m_timeout_counter += dtime;
+
+ return m_timeout_counter > timeout;
+}
+
+void Peer::Drop()
+{
+ {
+ JMutexAutoLock usage_lock(m_exclusive_access_mutex);
+ m_pending_deletion = true;
+ if (m_usage != 0)
+ return;
+ }
+
+ PROFILE(std::stringstream peerIdentifier1);
+ PROFILE(peerIdentifier1 << "runTimeouts[" << m_connection->getDesc()
+ << ";" << id << ";RELIABLE]");
+ PROFILE(g_profiler->remove(peerIdentifier1.str()));
+ PROFILE(std::stringstream peerIdentifier2);
+ PROFILE(peerIdentifier2 << "sendPackets[" << m_connection->getDesc()
+ << ";" << id << ";RELIABLE]");
+ PROFILE(ScopeProfiler peerprofiler(g_profiler, peerIdentifier2.str(), SPT_AVG));
+
+ delete this;
+}
+
+UDPPeer::UDPPeer(u16 a_id, Address a_address, Connection* connection) :
+ Peer(a_address,a_id,connection),
+ m_pending_disconnect(false),
+ resend_timeout(0.5),
+ m_legacy_peer(true)
+{
+}
+
+bool UDPPeer::getAddress(MTProtocols type,Address& toset)
+{
+ if ((type == MTP_UDP) || (type == MTP_MINETEST_RELIABLE_UDP) || (type == MTP_PRIMARY))
+ {
+ toset = address;
+ return true;
+ }
+
+ return false;
+}
+
+void UDPPeer::setNonLegacyPeer()
+{
+ m_legacy_peer = false;
+ for(unsigned int i=0; i< CHANNEL_COUNT; i++)
+ {
+ channels->setWindowSize(g_settings->getU16("max_packets_per_iteration"));
+ }
+}
+
+void UDPPeer::reportRTT(float rtt)
+{
+ if (rtt < 0.0) {
+ return;
+ }
+ RTTStatistics(rtt,"rudp",MAX_RELIABLE_WINDOW_SIZE*10);
+
+ float timeout = getStat(AVG_RTT) * RESEND_TIMEOUT_FACTOR;
+ if (timeout < RESEND_TIMEOUT_MIN)
+ timeout = RESEND_TIMEOUT_MIN;
+ if (timeout > RESEND_TIMEOUT_MAX)
+ timeout = RESEND_TIMEOUT_MAX;
+
+ JMutexAutoLock usage_lock(m_exclusive_access_mutex);
+ resend_timeout = timeout;
+}
+
+bool UDPPeer::Ping(float dtime,SharedBuffer<u8>& data)
+{
+ m_ping_timer += dtime;
+ if (m_ping_timer >= PING_TIMEOUT)
+ {
+ // Create and send PING packet
+ writeU8(&data[0], TYPE_CONTROL);
+ writeU8(&data[1], CONTROLTYPE_PING);
+ m_ping_timer = 0.0;
+ return true;
+ }
+ return false;
+}
+
+void UDPPeer::PutReliableSendCommand(ConnectionCommand &c,
+ unsigned int max_packet_size)
+{
+ if (m_pending_disconnect)
+ return;
+
+ if ( channels[c.channelnum].queued_commands.empty() &&
+ /* don't queue more packets then window size */
+ (channels[c.channelnum].queued_reliables.size()
+ < (channels[c.channelnum].getWindowSize()/2)))
+ {
+ LOG(dout_con<<m_connection->getDesc()
+ <<" processing reliable command for peer id: " << c.peer_id
+ <<" data size: " << c.data.getSize() << std::endl);
+ if (!processReliableSendCommand(c,max_packet_size))
+ {
+ channels[c.channelnum].queued_commands.push_back(c);
+ }
+ }
+ else
+ {
+ LOG(dout_con<<m_connection->getDesc()
+ <<" Queueing reliable command for peer id: " << c.peer_id
+ <<" data size: " << c.data.getSize() <<std::endl);
+ channels[c.channelnum].queued_commands.push_back(c);
+ }
+}
+
+bool UDPPeer::processReliableSendCommand(
+ ConnectionCommand &c,
+ unsigned int max_packet_size)
+{
+ if (m_pending_disconnect)
+ return true;
+
+ u32 chunksize_max = max_packet_size
+ - BASE_HEADER_SIZE
+ - RELIABLE_HEADER_SIZE;
+
+ assert(c.data.getSize() < MAX_RELIABLE_WINDOW_SIZE*512);
+
+ std::list<SharedBuffer<u8> > originals;
+ u16 split_sequence_number = channels[c.channelnum].readNextSplitSeqNum();
+
+ if (c.raw)
+ {
+ originals.push_back(c.data);
+ }
+ else {
+ originals = makeAutoSplitPacket(c.data, chunksize_max,split_sequence_number);
+ channels[c.channelnum].setNextSplitSeqNum(split_sequence_number);
+ }
+
+ bool have_sequence_number = true;
+ bool have_initial_sequence_number = false;
+ Queue<BufferedPacket> toadd;
+ volatile u16 initial_sequence_number = 0;
+
+ for(std::list<SharedBuffer<u8> >::iterator i = originals.begin();
+ i != originals.end(); ++i)
+ {
+ u16 seqnum = channels[c.channelnum].getOutgoingSequenceNumber(have_sequence_number);
+
+ /* oops, we don't have enough sequence numbers to send this packet */
+ if (!have_sequence_number)
+ break;
+
+ if (!have_initial_sequence_number)
+ {
+ initial_sequence_number = seqnum;
+ have_initial_sequence_number = true;
+ }
+
+ SharedBuffer<u8> reliable = makeReliablePacket(*i, seqnum);
+
+ // Add base headers and make a packet
+ BufferedPacket p = con::makePacket(address, reliable,
+ m_connection->GetProtocolID(), m_connection->GetPeerID(),
+ c.channelnum);
+
+ toadd.push_back(p);
+ }
+
+ if (have_sequence_number) {
+ volatile u16 pcount = 0;
+ while(toadd.size() > 0) {
+ BufferedPacket p = toadd.pop_front();
+// LOG(dout_con<<connection->getDesc()
+// << " queuing reliable packet for peer_id: " << c.peer_id
+// << " channel: " << (c.channelnum&0xFF)
+// << " seqnum: " << readU16(&p.data[BASE_HEADER_SIZE+1])
+// << std::endl)
+ channels[c.channelnum].queued_reliables.push_back(p);
+ pcount++;
+ }
+ assert(channels[c.channelnum].queued_reliables.size() < 0xFFFF);
+ return true;
+ }
+ else {
+ volatile u16 packets_available = toadd.size();
+ /* we didn't get a single sequence number no need to fill queue */
+ if (!have_initial_sequence_number)
+ {
+ return false;
+ }
+ while(toadd.size() > 0) {
+ /* remove packet */
+ toadd.pop_front();
+
+ bool successfully_put_back_sequence_number
+ = channels[c.channelnum].putBackSequenceNumber(
+ (initial_sequence_number+toadd.size() % (SEQNUM_MAX+1)));
+
+ assert(successfully_put_back_sequence_number);
+ }
+ LOG(dout_con<<m_connection->getDesc()
+ << " Windowsize exceeded on reliable sending "
+ << c.data.getSize() << " bytes"
+ << std::endl << "\t\tinitial_sequence_number: "
+ << initial_sequence_number
+ << std::endl << "\t\tgot at most : "
+ << packets_available << " packets"
+ << std::endl << "\t\tpackets queued : "
+ << channels[c.channelnum].outgoing_reliables_sent.size()
+ << std::endl);
+ return false;
+ }
+}
+
+void UDPPeer::RunCommandQueues(
+ unsigned int max_packet_size,
+ unsigned int maxcommands,
+ unsigned int maxtransfer)
+{
+
+ for (unsigned int i = 0; i < CHANNEL_COUNT; i++)
+ {
+ unsigned int commands_processed = 0;
+
+ if ((channels[i].queued_commands.size() > 0) &&
+ (channels[i].queued_reliables.size() < maxtransfer) &&
+ (commands_processed < maxcommands))
+ {
+ try {
+ ConnectionCommand c = channels[i].queued_commands.pop_front();
+ LOG(dout_con<<m_connection->getDesc()
+ <<" processing queued reliable command "<<std::endl);
+ if (!processReliableSendCommand(c,max_packet_size)) {
+ LOG(dout_con<<m_connection->getDesc()
+ << " Failed to queue packets for peer_id: " << c.peer_id
+ << ", delaying sending of " << c.data.getSize()
+ << " bytes" << std::endl);
+ channels[i].queued_commands.push_front(c);
+ }
+ }
+ catch (ItemNotFoundException &e) {
+ // intentionally empty
+ }
+ }
+ }
+}
+
+u16 UDPPeer::getNextSplitSequenceNumber(u8 channel)
+{
+ assert(channel < CHANNEL_COUNT);
+ return channels[channel].readNextIncomingSeqNum();
+}
+
+void UDPPeer::setNextSplitSequenceNumber(u8 channel, u16 seqnum)
+{
+ assert(channel < CHANNEL_COUNT);
+ channels[channel].setNextSplitSeqNum(seqnum);
+}
+
+SharedBuffer<u8> UDPPeer::addSpiltPacket(u8 channel,
+ BufferedPacket toadd,
+ bool reliable)
+{
+ assert(channel < CHANNEL_COUNT);
+ return channels[channel].incoming_splits.insert(toadd,reliable);
+}
+
+/******************************************************************************/
+/* Connection Threads */
+/******************************************************************************/
+
+ConnectionSendThread::ConnectionSendThread( unsigned int max_packet_size,
+ float timeout) :
+ m_connection(NULL),
+ m_max_packet_size(max_packet_size),
+ m_timeout(timeout),
+ m_max_commands_per_iteration(1),
+ m_max_data_packets_per_iteration(g_settings->getU16("max_packets_per_iteration")),
+ m_max_packets_requeued(256)
+{
+}
+
+void * ConnectionSendThread::Thread()
+{
+ assert(m_connection != NULL);
+ ThreadStarted();
+ log_register_thread("ConnectionSend");
+
+ LOG(dout_con<<m_connection->getDesc()
+ <<"ConnectionSend thread started"<<std::endl);
+
+ u32 curtime = porting::getTimeMs();
+ u32 lasttime = curtime;
+
+ PROFILE(std::stringstream ThreadIdentifier);
+ PROFILE(ThreadIdentifier << "ConnectionSend: [" << m_connection->getDesc() << "]");
+
+ porting::setThreadName("ConnectionSend");
+
+ /* if stop is requested don't stop immediately but try to send all */
+ /* packets first */
+ while(!StopRequested() || packetsQueued()) {
+ BEGIN_DEBUG_EXCEPTION_HANDLER
+ PROFILE(ScopeProfiler sp(g_profiler, ThreadIdentifier.str(), SPT_AVG));
+
+ m_iteration_packets_avaialble = m_max_data_packets_per_iteration;
+
+ /* wait for trigger or timeout */
+ m_send_sleep_semaphore.Wait(50);
+
+ /* remove all triggers */
+ while(m_send_sleep_semaphore.Wait(0)) {}
+
+ lasttime = curtime;
+ curtime = porting::getTimeMs();
+ float dtime = CALC_DTIME(lasttime,curtime);
+
+ /* first do all the reliable stuff */
+ runTimeouts(dtime);
+
+ /* translate commands to packets */
+ ConnectionCommand c = m_connection->m_command_queue.pop_frontNoEx(0);
+ while(c.type != CONNCMD_NONE)
+ {
+ if (c.reliable)
+ processReliableCommand(c);
+ else
+ processNonReliableCommand(c);
+
+ c = m_connection->m_command_queue.pop_frontNoEx(0);
+ }
+
+ /* send non reliable packets */
+ sendPackets(dtime);
+
+ END_DEBUG_EXCEPTION_HANDLER(errorstream);
+ }
+
+ PROFILE(g_profiler->remove(ThreadIdentifier.str()));
+ return NULL;
+}
+
+void ConnectionSendThread::Trigger()
+{
+ m_send_sleep_semaphore.Post();
+}
+
+bool ConnectionSendThread::packetsQueued()
+{
+ std::list<u16> peerIds = m_connection->getPeerIDs();
+
+ if (!m_outgoing_queue.empty() && !peerIds.empty())
+ return true;
+
+ for(std::list<u16>::iterator j = peerIds.begin();
+ j != peerIds.end(); ++j)
+ {
+ PeerHelper peer = m_connection->getPeerNoEx(*j);
+
+ if (!peer)
+ continue;
+
+ if (dynamic_cast<UDPPeer*>(&peer) == 0)
+ continue;
+
+ for(u16 i=0; i<CHANNEL_COUNT; i++)
+ {
+ Channel *channel = &(dynamic_cast<UDPPeer*>(&peer))->channels[i];
+
+ if (channel->queued_commands.size() > 0)
+ {
+ return true;
+ }
+ }
+ }
+
+
+ return false;
+}
+
+void ConnectionSendThread::runTimeouts(float dtime)
+{
+ std::list<u16> timeouted_peers;
+ std::list<u16> peerIds = m_connection->getPeerIDs();
+
+ for(std::list<u16>::iterator j = peerIds.begin();
+ j != peerIds.end(); ++j)
+ {
+ PeerHelper peer = m_connection->getPeerNoEx(*j);
+
+ if (!peer)
+ continue;
+
+ if (dynamic_cast<UDPPeer*>(&peer) == 0)
+ continue;
+
+ PROFILE(std::stringstream peerIdentifier);
+ PROFILE(peerIdentifier << "runTimeouts[" << m_connection->getDesc()
+ << ";" << *j << ";RELIABLE]");
+ PROFILE(ScopeProfiler peerprofiler(g_profiler, peerIdentifier.str(), SPT_AVG));
+
+ SharedBuffer<u8> data(2); // data for sending ping, required here because of goto
+
+ /*
+ Check peer timeout
+ */
+ if (peer->isTimedOut(m_timeout))
+ {
+ infostream<<m_connection->getDesc()
+ <<"RunTimeouts(): Peer "<<peer->id
+ <<" has timed out."
+ <<" (source=peer->timeout_counter)"
+ <<std::endl;
+ // Add peer to the list
+ timeouted_peers.push_back(peer->id);
+ // Don't bother going through the buffers of this one
+ continue;
+ }
+
+ float resend_timeout = dynamic_cast<UDPPeer*>(&peer)->getResendTimeout();
+ for(u16 i=0; i<CHANNEL_COUNT; i++)
+ {
+ std::list<BufferedPacket> timed_outs;
+ Channel *channel = &(dynamic_cast<UDPPeer*>(&peer))->channels[i];
+
+ if (dynamic_cast<UDPPeer*>(&peer)->getLegacyPeer())
+ channel->setWindowSize(g_settings->getU16("workaround_window_size"));
+
+ // Remove timed out incomplete unreliable split packets
+ channel->incoming_splits.removeUnreliableTimedOuts(dtime, m_timeout);
+
+ // Increment reliable packet times
+ channel->outgoing_reliables_sent.incrementTimeouts(dtime);
+
+ unsigned int numpeers = m_connection->m_peers.size();
+
+ if (numpeers == 0)
+ return;
+
+ // Re-send timed out outgoing reliables
+ timed_outs = channel->
+ outgoing_reliables_sent.getTimedOuts(resend_timeout,
+ (m_max_data_packets_per_iteration/numpeers));
+
+ channel->UpdatePacketLossCounter(timed_outs.size());
+ g_profiler->graphAdd("packets_lost", timed_outs.size());
+
+ m_iteration_packets_avaialble -= timed_outs.size();
+
+ for(std::list<BufferedPacket>::iterator k = timed_outs.begin();
+ k != timed_outs.end(); ++k)
+ {
+ u16 peer_id = readPeerId(*(k->data));
+ u8 channelnum = readChannel(*(k->data));
+ u16 seqnum = readU16(&(k->data[BASE_HEADER_SIZE+1]));
+
+ channel->UpdateBytesLost(k->data.getSize());
+ k->resend_count++;
+
+ LOG(derr_con<<m_connection->getDesc()
+ <<"RE-SENDING timed-out RELIABLE to "
+ << k->address.serializeString()
+ << "(t/o="<<resend_timeout<<"): "
+ <<"from_peer_id="<<peer_id
+ <<", channel="<<((int)channelnum&0xff)
+ <<", seqnum="<<seqnum
+ <<std::endl);
+
+ rawSend(*k);
+
+ // do not handle rtt here as we can't decide if this packet was
+ // lost or really takes more time to transmit
+ }
+ channel->UpdateTimers(dtime,dynamic_cast<UDPPeer*>(&peer)->getLegacyPeer());
+ }
+
+ /* send ping if necessary */
+ if (dynamic_cast<UDPPeer*>(&peer)->Ping(dtime,data)) {
+ LOG(dout_con<<m_connection->getDesc()
+ <<"Sending ping for peer_id: "
+ << dynamic_cast<UDPPeer*>(&peer)->id <<std::endl);
+ /* this may fail if there ain't a sequence number left */
+ if (!rawSendAsPacket(dynamic_cast<UDPPeer*>(&peer)->id, 0, data, true))
+ {
+ //retrigger with reduced ping interval
+ dynamic_cast<UDPPeer*>(&peer)->Ping(4.0,data);
+ }
+ }
+
+ dynamic_cast<UDPPeer*>(&peer)->RunCommandQueues(m_max_packet_size,
+ m_max_commands_per_iteration,
+ m_max_packets_requeued);
+ }
+
+ // Remove timed out peers
+ for(std::list<u16>::iterator i = timeouted_peers.begin();
+ i != timeouted_peers.end(); ++i)
+ {
+ LOG(derr_con<<m_connection->getDesc()
+ <<"RunTimeouts(): Removing peer "<<(*i)<<std::endl);
+ m_connection->deletePeer(*i, true);
+ }
+}
+
+void ConnectionSendThread::rawSend(const BufferedPacket &packet)
+{
+ try{
+ m_connection->m_udpSocket.Send(packet.address, *packet.data,
+ packet.data.getSize());
+ LOG(dout_con <<m_connection->getDesc()
+ << " rawSend: " << packet.data.getSize()
+ << " bytes sent" << std::endl);
+ } catch(SendFailedException &e) {
+ LOG(derr_con<<m_connection->getDesc()
+ <<"Connection::rawSend(): SendFailedException: "
+ <<packet.address.serializeString()<<std::endl);
+ }
+}
+
+void ConnectionSendThread::sendAsPacketReliable(BufferedPacket& p, Channel* channel)
+{
+ try{
+ p.absolute_send_time = porting::getTimeMs();
+ // Buffer the packet
+ channel->outgoing_reliables_sent.insert(p,
+ (channel->readOutgoingSequenceNumber() - MAX_RELIABLE_WINDOW_SIZE)
+ % (MAX_RELIABLE_WINDOW_SIZE+1));
+ }
+ catch(AlreadyExistsException &e)
+ {
+ LOG(derr_con<<m_connection->getDesc()
+ <<"WARNING: Going to send a reliable packet"
+ <<" in outgoing buffer" <<std::endl);
+ //assert(0);
+ }
+
+ // Send the packet
+ rawSend(p);
+}
+
+bool ConnectionSendThread::rawSendAsPacket(u16 peer_id, u8 channelnum,
+ SharedBuffer<u8> data, bool reliable)
+{
+ PeerHelper peer = m_connection->getPeerNoEx(peer_id);
+ if (!peer) {
+ LOG(dout_con<<m_connection->getDesc()
+ <<" INFO: dropped packet for non existent peer_id: "
+ << peer_id << std::endl);
+ assert(reliable && "trying to send raw packet reliable but no peer found!");
+ return false;
+ }
+ Channel *channel = &(dynamic_cast<UDPPeer*>(&peer)->channels[channelnum]);
+
+ if (reliable)
+ {
+ bool have_sequence_number_for_raw_packet = true;
+ u16 seqnum =
+ channel->getOutgoingSequenceNumber(have_sequence_number_for_raw_packet);
+
+ if (!have_sequence_number_for_raw_packet)
+ return false;
+
+ SharedBuffer<u8> reliable = makeReliablePacket(data, seqnum);
+ Address peer_address;
+ peer->getAddress(MTP_MINETEST_RELIABLE_UDP, peer_address);
+
+ // Add base headers and make a packet
+ BufferedPacket p = con::makePacket(peer_address, reliable,
+ m_connection->GetProtocolID(), m_connection->GetPeerID(),
+ channelnum);
+
+ // first check if our send window is already maxed out
+ if (channel->outgoing_reliables_sent.size()
+ < channel->getWindowSize()) {
+ LOG(dout_con<<m_connection->getDesc()
+ <<" INFO: sending a reliable packet to peer_id " << peer_id
+ <<" channel: " << channelnum
+ <<" seqnum: " << seqnum << std::endl);
+ sendAsPacketReliable(p,channel);
+ return true;
+ }
+ else {
+ LOG(dout_con<<m_connection->getDesc()
+ <<" INFO: queueing reliable packet for peer_id: " << peer_id
+ <<" channel: " << channelnum
+ <<" seqnum: " << seqnum << std::endl);
+ channel->queued_reliables.push_back(p);
+ return false;
+ }
+ }
+ else
+ {
+ Address peer_address;
+
+ if (peer->getAddress(MTP_UDP, peer_address))
+ {
+ // Add base headers and make a packet
+ BufferedPacket p = con::makePacket(peer_address, data,
+ m_connection->GetProtocolID(), m_connection->GetPeerID(),
+ channelnum);
+
+ // Send the packet
+ rawSend(p);
+ return true;
+ }
+ else {
+ LOG(dout_con<<m_connection->getDesc()
+ <<" INFO: dropped unreliable packet for peer_id: " << peer_id
+ <<" because of (yet) missing udp address" << std::endl);
+ return false;
+ }
+ }
+
+ //never reached
+ return false;
+}
+
+void ConnectionSendThread::processReliableCommand(ConnectionCommand &c)
+{
+ assert(c.reliable);
+
+ switch(c.type) {
+ case CONNCMD_NONE:
+ LOG(dout_con<<m_connection->getDesc()
+ <<"UDP processing reliable CONNCMD_NONE"<<std::endl);
+ return;
+
+ case CONNCMD_SEND:
+ LOG(dout_con<<m_connection->getDesc()
+ <<"UDP processing reliable CONNCMD_SEND"<<std::endl);
+ sendReliable(c);
+ return;
+
+ case CONNCMD_SEND_TO_ALL:
+ LOG(dout_con<<m_connection->getDesc()
+ <<"UDP processing CONNCMD_SEND_TO_ALL"<<std::endl);
+ sendToAllReliable(c);
+ return;
+
+ case CONCMD_CREATE_PEER:
+ LOG(dout_con<<m_connection->getDesc()
+ <<"UDP processing reliable CONCMD_CREATE_PEER"<<std::endl);
+ if (!rawSendAsPacket(c.peer_id,c.channelnum,c.data,c.reliable))
+ {
+ /* put to queue if we couldn't send it immediately */
+ sendReliable(c);
+ }
+ return;
+
+ case CONCMD_DISABLE_LEGACY:
+ LOG(dout_con<<m_connection->getDesc()
+ <<"UDP processing reliable CONCMD_DISABLE_LEGACY"<<std::endl);
+ if (!rawSendAsPacket(c.peer_id,c.channelnum,c.data,c.reliable))
+ {
+ /* put to queue if we couldn't send it immediately */
+ sendReliable(c);
+ }
+ return;
+
+ case CONNCMD_SERVE:
+ case CONNCMD_CONNECT:
+ case CONNCMD_DISCONNECT:
+ case CONCMD_ACK:
+ assert("Got command that shouldn't be reliable as reliable command" == 0);
+ default:
+ LOG(dout_con<<m_connection->getDesc()
+ <<" Invalid reliable command type: " << c.type <<std::endl);
+ }
+}
+
+
+void ConnectionSendThread::processNonReliableCommand(ConnectionCommand &c)
+{
+ assert(!c.reliable);
+
+ switch(c.type) {
+ case CONNCMD_NONE:
+ LOG(dout_con<<m_connection->getDesc()
+ <<" UDP processing CONNCMD_NONE"<<std::endl);
+ return;
+ case CONNCMD_SERVE:
+ LOG(dout_con<<m_connection->getDesc()
+ <<" UDP processing CONNCMD_SERVE port="
+ <<c.address.serializeString()<<std::endl);
+ serve(c.address);
+ return;
+ case CONNCMD_CONNECT:
+ LOG(dout_con<<m_connection->getDesc()
+ <<" UDP processing CONNCMD_CONNECT"<<std::endl);
+ connect(c.address);
+ return;
+ case CONNCMD_DISCONNECT:
+ LOG(dout_con<<m_connection->getDesc()
+ <<" UDP processing CONNCMD_DISCONNECT"<<std::endl);
+ disconnect();
+ return;
+ case CONNCMD_DISCONNECT_PEER:
+ LOG(dout_con<<m_connection->getDesc()
+ <<" UDP processing CONNCMD_DISCONNECT_PEER"<<std::endl);
+ disconnect_peer(c.peer_id);
+ return;
+ case CONNCMD_SEND:
+ LOG(dout_con<<m_connection->getDesc()
+ <<" UDP processing CONNCMD_SEND"<<std::endl);
+ send(c.peer_id, c.channelnum, c.data);
+ return;
+ case CONNCMD_SEND_TO_ALL:
+ LOG(dout_con<<m_connection->getDesc()
+ <<" UDP processing CONNCMD_SEND_TO_ALL"<<std::endl);
+ sendToAll(c.channelnum, c.data);
+ return;
+ case CONCMD_ACK:
+ LOG(dout_con<<m_connection->getDesc()
+ <<" UDP processing CONCMD_ACK"<<std::endl);
+ sendAsPacket(c.peer_id,c.channelnum,c.data,true);
+ return;
+ case CONCMD_CREATE_PEER:
+ assert("Got command that should be reliable as unreliable command" == 0);
+ default:
+ LOG(dout_con<<m_connection->getDesc()
+ <<" Invalid command type: " << c.type <<std::endl);
+ }
+}
+
+void ConnectionSendThread::serve(Address bind_address)
+{
+ LOG(dout_con<<m_connection->getDesc()
+ <<"UDP serving at port " << bind_address.serializeString() <<std::endl);
+ try{
+ m_connection->m_udpSocket.Bind(bind_address);
+ m_connection->SetPeerID(PEER_ID_SERVER);
+ }
+ catch(SocketException &e) {
+ // Create event
+ ConnectionEvent ce;
+ ce.bindFailed();
+ m_connection->putEvent(ce);
+ }
+}
+
+void ConnectionSendThread::connect(Address address)
+{
+ LOG(dout_con<<m_connection->getDesc()<<" connecting to "<<address.serializeString()
+ <<":"<<address.getPort()<<std::endl);
+
+ UDPPeer *peer = m_connection->createServerPeer(address);
+
+ // Create event
+ ConnectionEvent e;
+ e.peerAdded(peer->id, peer->address);
+ m_connection->putEvent(e);
+
+ Address bind_addr;
+
+ if (address.isIPv6())
+ bind_addr.setAddress((IPv6AddressBytes*) NULL);
+ else
+ bind_addr.setAddress(0,0,0,0);
+
+ m_connection->m_udpSocket.Bind(bind_addr);
+
+ // Send a dummy packet to server with peer_id = PEER_ID_INEXISTENT
+ m_connection->SetPeerID(PEER_ID_INEXISTENT);
+ NetworkPacket* pkt = new NetworkPacket(0,0);
+ m_connection->Send(PEER_ID_SERVER, 0, pkt, true);
+}
+
+void ConnectionSendThread::disconnect()
+{
+ LOG(dout_con<<m_connection->getDesc()<<" disconnecting"<<std::endl);
+
+ // Create and send DISCO packet
+ SharedBuffer<u8> data(2);
+ writeU8(&data[0], TYPE_CONTROL);
+ writeU8(&data[1], CONTROLTYPE_DISCO);
+
+
+ // Send to all
+ std::list<u16> peerids = m_connection->getPeerIDs();
+
+ for (std::list<u16>::iterator i = peerids.begin();
+ i != peerids.end();
+ i++)
+ {
+ sendAsPacket(*i, 0,data,false);
+ }
+}
+
+void ConnectionSendThread::disconnect_peer(u16 peer_id)
+{
+ LOG(dout_con<<m_connection->getDesc()<<" disconnecting peer"<<std::endl);
+
+ // Create and send DISCO packet
+ SharedBuffer<u8> data(2);
+ writeU8(&data[0], TYPE_CONTROL);
+ writeU8(&data[1], CONTROLTYPE_DISCO);
+ sendAsPacket(peer_id, 0,data,false);
+
+ PeerHelper peer = m_connection->getPeerNoEx(peer_id);
+
+ if (!peer)
+ return;
+
+ if (dynamic_cast<UDPPeer*>(&peer) == 0)
+ {
+ return;
+ }
+
+ dynamic_cast<UDPPeer*>(&peer)->m_pending_disconnect = true;
+}
+
+void ConnectionSendThread::send(u16 peer_id, u8 channelnum,
+ SharedBuffer<u8> data)
+{
+ assert(channelnum < CHANNEL_COUNT);
+
+ PeerHelper peer = m_connection->getPeerNoEx(peer_id);
+ if (!peer)
+ {
+ LOG(dout_con<<m_connection->getDesc()<<" peer: peer_id="<<peer_id
+ << ">>>NOT<<< found on sending packet"
+ << ", channel " << (channelnum % 0xFF)
+ << ", size: " << data.getSize() <<std::endl);
+ return;
+ }
+
+ LOG(dout_con<<m_connection->getDesc()<<" sending to peer_id="<<peer_id
+ << ", channel " << (channelnum % 0xFF)
+ << ", size: " << data.getSize() <<std::endl);
+
+ u16 split_sequence_number = peer->getNextSplitSequenceNumber(channelnum);
+
+ u32 chunksize_max = m_max_packet_size - BASE_HEADER_SIZE;
+ std::list<SharedBuffer<u8> > originals;
+
+ originals = makeAutoSplitPacket(data, chunksize_max,split_sequence_number);
+
+ peer->setNextSplitSequenceNumber(channelnum,split_sequence_number);
+
+ for(std::list<SharedBuffer<u8> >::iterator i = originals.begin();
+ i != originals.end(); ++i)
+ {
+ SharedBuffer<u8> original = *i;
+ sendAsPacket(peer_id, channelnum, original);
+ }
+}
+
+void ConnectionSendThread::sendReliable(ConnectionCommand &c)
+{
+ PeerHelper peer = m_connection->getPeerNoEx(c.peer_id);
+ if (!peer)
+ return;
+
+ peer->PutReliableSendCommand(c,m_max_packet_size);
+}
+
+void ConnectionSendThread::sendToAll(u8 channelnum, SharedBuffer<u8> data)
+{
+ std::list<u16> peerids = m_connection->getPeerIDs();
+
+ for (std::list<u16>::iterator i = peerids.begin();
+ i != peerids.end();
+ i++)
+ {
+ send(*i, channelnum, data);
+ }
+}
+
+void ConnectionSendThread::sendToAllReliable(ConnectionCommand &c)
+{
+ std::list<u16> peerids = m_connection->getPeerIDs();
+
+ for (std::list<u16>::iterator i = peerids.begin();
+ i != peerids.end();
+ i++)
+ {
+ PeerHelper peer = m_connection->getPeerNoEx(*i);
+
+ if (!peer)
+ continue;
+
+ peer->PutReliableSendCommand(c,m_max_packet_size);
+ }
+}
+
+void ConnectionSendThread::sendPackets(float dtime)
+{
+ std::list<u16> peerIds = m_connection->getPeerIDs();
+ std::list<u16> pendingDisconnect;
+ std::map<u16,bool> pending_unreliable;
+
+ for(std::list<u16>::iterator
+ j = peerIds.begin();
+ j != peerIds.end(); ++j)
+ {
+ PeerHelper peer = m_connection->getPeerNoEx(*j);
+ //peer may have been removed
+ if (!peer) {
+ LOG(dout_con<<m_connection->getDesc()<< " Peer not found: peer_id=" << *j << std::endl);
+ continue;
+ }
+ peer->m_increment_packets_remaining = m_iteration_packets_avaialble/m_connection->m_peers.size();
+
+ if (dynamic_cast<UDPPeer*>(&peer) == 0)
+ {
+ continue;
+ }
+
+ if (dynamic_cast<UDPPeer*>(&peer)->m_pending_disconnect)
+ {
+ pendingDisconnect.push_back(*j);
+ }
+
+ PROFILE(std::stringstream peerIdentifier);
+ PROFILE(peerIdentifier << "sendPackets[" << m_connection->getDesc() << ";" << *j << ";RELIABLE]");
+ PROFILE(ScopeProfiler peerprofiler(g_profiler, peerIdentifier.str(), SPT_AVG));
+
+ LOG(dout_con<<m_connection->getDesc()
+ << " Handle per peer queues: peer_id=" << *j
+ << " packet quota: " << peer->m_increment_packets_remaining << std::endl);
+ // first send queued reliable packets for all peers (if possible)
+ for (unsigned int i=0; i < CHANNEL_COUNT; i++)
+ {
+ u16 next_to_ack = 0;
+ dynamic_cast<UDPPeer*>(&peer)->channels[i].outgoing_reliables_sent.getFirstSeqnum(next_to_ack);
+ u16 next_to_receive = 0;
+ dynamic_cast<UDPPeer*>(&peer)->channels[i].incoming_reliables.getFirstSeqnum(next_to_receive);
+
+ LOG(dout_con<<m_connection->getDesc()<< "\t channel: "
+ << i << ", peer quota:"
+ << peer->m_increment_packets_remaining
+ << std::endl
+ << "\t\t\treliables on wire: "
+ << dynamic_cast<UDPPeer*>(&peer)->channels[i].outgoing_reliables_sent.size()
+ << ", waiting for ack for " << next_to_ack
+ << std::endl
+ << "\t\t\tincoming_reliables: "
+ << dynamic_cast<UDPPeer*>(&peer)->channels[i].incoming_reliables.size()
+ << ", next reliable packet: "
+ << dynamic_cast<UDPPeer*>(&peer)->channels[i].readNextIncomingSeqNum()
+ << ", next queued: " << next_to_receive
+ << std::endl
+ << "\t\t\treliables queued : "
+ << dynamic_cast<UDPPeer*>(&peer)->channels[i].queued_reliables.size()
+ << std::endl
+ << "\t\t\tqueued commands : "
+ << dynamic_cast<UDPPeer*>(&peer)->channels[i].queued_commands.size()
+ << std::endl);
+
+ while ((dynamic_cast<UDPPeer*>(&peer)->channels[i].queued_reliables.size() > 0) &&
+ (dynamic_cast<UDPPeer*>(&peer)->channels[i].outgoing_reliables_sent.size()
+ < dynamic_cast<UDPPeer*>(&peer)->channels[i].getWindowSize())&&
+ (peer->m_increment_packets_remaining > 0))
+ {
+ BufferedPacket p = dynamic_cast<UDPPeer*>(&peer)->channels[i].queued_reliables.pop_front();
+ Channel* channel = &(dynamic_cast<UDPPeer*>(&peer)->channels[i]);
+ LOG(dout_con<<m_connection->getDesc()
+ <<" INFO: sending a queued reliable packet "
+ <<" channel: " << i
+ <<", seqnum: " << readU16(&p.data[BASE_HEADER_SIZE+1])
+ << std::endl);
+ sendAsPacketReliable(p,channel);
+ peer->m_increment_packets_remaining--;
+ }
+ }
+ }
+
+ if (m_outgoing_queue.size())
+ {
+ LOG(dout_con<<m_connection->getDesc()
+ << " Handle non reliable queue ("
+ << m_outgoing_queue.size() << " pkts)" << std::endl);
+ }
+
+ unsigned int initial_queuesize = m_outgoing_queue.size();
+ /* send non reliable packets*/
+ for(unsigned int i=0;i < initial_queuesize;i++) {
+ OutgoingPacket packet = m_outgoing_queue.pop_front();
+
+ assert(!packet.reliable &&
+ "reliable packets are not allowed in outgoing queue!");
+
+ PeerHelper peer = m_connection->getPeerNoEx(packet.peer_id);
+ if (!peer) {
+ LOG(dout_con<<m_connection->getDesc()
+ <<" Outgoing queue: peer_id="<<packet.peer_id
+ << ">>>NOT<<< found on sending packet"
+ << ", channel " << (packet.channelnum % 0xFF)
+ << ", size: " << packet.data.getSize() <<std::endl);
+ continue;
+ }
+ /* send acks immediately */
+ else if (packet.ack)
+ {
+ rawSendAsPacket(packet.peer_id, packet.channelnum,
+ packet.data, packet.reliable);
+ peer->m_increment_packets_remaining =
+ MYMIN(0,peer->m_increment_packets_remaining--);
+ }
+ else if (
+ ( peer->m_increment_packets_remaining > 0) ||
+ (StopRequested())) {
+ rawSendAsPacket(packet.peer_id, packet.channelnum,
+ packet.data, packet.reliable);
+ peer->m_increment_packets_remaining--;
+ }
+ else {
+ m_outgoing_queue.push_back(packet);
+ pending_unreliable[packet.peer_id] = true;
+ }
+ }
+
+ for(std::list<u16>::iterator
+ k = pendingDisconnect.begin();
+ k != pendingDisconnect.end(); ++k)
+ {
+ if (!pending_unreliable[*k])
+ {
+ m_connection->deletePeer(*k,false);
+ }
+ }
+}
+
+void ConnectionSendThread::sendAsPacket(u16 peer_id, u8 channelnum,
+ SharedBuffer<u8> data, bool ack)
+{
+ OutgoingPacket packet(peer_id, channelnum, data, false, ack);
+ m_outgoing_queue.push_back(packet);
+}
+
+ConnectionReceiveThread::ConnectionReceiveThread(unsigned int max_packet_size) :
+ m_connection(NULL)
+{
+}
+
+void * ConnectionReceiveThread::Thread()
+{
+ assert(m_connection != NULL);
+ ThreadStarted();
+ log_register_thread("ConnectionReceive");
+
+ LOG(dout_con<<m_connection->getDesc()
+ <<"ConnectionReceive thread started"<<std::endl);
+
+ PROFILE(std::stringstream ThreadIdentifier);
+ PROFILE(ThreadIdentifier << "ConnectionReceive: [" << m_connection->getDesc() << "]");
+
+ porting::setThreadName("ConnectionReceive");
+
+#ifdef DEBUG_CONNECTION_KBPS
+ u32 curtime = porting::getTimeMs();
+ u32 lasttime = curtime;
+ float debug_print_timer = 0.0;
+#endif
+
+ while(!StopRequested()) {
+ BEGIN_DEBUG_EXCEPTION_HANDLER
+ PROFILE(ScopeProfiler sp(g_profiler, ThreadIdentifier.str(), SPT_AVG));
+
+#ifdef DEBUG_CONNECTION_KBPS
+ lasttime = curtime;
+ curtime = porting::getTimeMs();
+ float dtime = CALC_DTIME(lasttime,curtime);
+#endif
+
+ /* receive packets */
+ receive();
+
+#ifdef DEBUG_CONNECTION_KBPS
+ debug_print_timer += dtime;
+ if (debug_print_timer > 20.0) {
+ debug_print_timer -= 20.0;
+
+ std::list<u16> peerids = m_connection->getPeerIDs();
+
+ for (std::list<u16>::iterator i = peerids.begin();
+ i != peerids.end();
+ i++)
+ {
+ PeerHelper peer = m_connection->getPeerNoEx(*i);
+ if (!peer)
+ continue;
+
+ float peer_current = 0.0;
+ float peer_loss = 0.0;
+ float avg_rate = 0.0;
+ float avg_loss = 0.0;
+
+ for(u16 j=0; j<CHANNEL_COUNT; j++)
+ {
+ peer_current +=peer->channels[j].getCurrentDownloadRateKB();
+ peer_loss += peer->channels[j].getCurrentLossRateKB();
+ avg_rate += peer->channels[j].getAvgDownloadRateKB();
+ avg_loss += peer->channels[j].getAvgLossRateKB();
+ }
+
+ std::stringstream output;
+ output << std::fixed << std::setprecision(1);
+ output << "OUT to Peer " << *i << " RATES (good / loss) " << std::endl;
+ output << "\tcurrent (sum): " << peer_current << "kb/s "<< peer_loss << "kb/s" << std::endl;
+ output << "\taverage (sum): " << avg_rate << "kb/s "<< avg_loss << "kb/s" << std::endl;
+ output << std::setfill(' ');
+ for(u16 j=0; j<CHANNEL_COUNT; j++)
+ {
+ output << "\tcha " << j << ":"
+ << " CUR: " << std::setw(6) << peer->channels[j].getCurrentDownloadRateKB() <<"kb/s"
+ << " AVG: " << std::setw(6) << peer->channels[j].getAvgDownloadRateKB() <<"kb/s"
+ << " MAX: " << std::setw(6) << peer->channels[j].getMaxDownloadRateKB() <<"kb/s"
+ << " /"
+ << " CUR: " << std::setw(6) << peer->channels[j].getCurrentLossRateKB() <<"kb/s"
+ << " AVG: " << std::setw(6) << peer->channels[j].getAvgLossRateKB() <<"kb/s"
+ << " MAX: " << std::setw(6) << peer->channels[j].getMaxLossRateKB() <<"kb/s"
+ << " / WS: " << peer->channels[j].getWindowSize()
+ << std::endl;
+ }
+
+ fprintf(stderr,"%s\n",output.str().c_str());
+ }
+ }
+#endif
+ END_DEBUG_EXCEPTION_HANDLER(errorstream);
+ }
+ PROFILE(g_profiler->remove(ThreadIdentifier.str()));
+ return NULL;
+}
+
+// Receive packets from the network and buffers and create ConnectionEvents
+void ConnectionReceiveThread::receive()
+{
+ // use IPv6 minimum allowed MTU as receive buffer size as this is
+ // theoretical reliable upper boundary of a udp packet for all IPv6 enabled
+ // infrastructure
+ unsigned int packet_maxsize = 1500;
+ SharedBuffer<u8> packetdata(packet_maxsize);
+
+ bool packet_queued = true;
+
+ unsigned int loop_count = 0;
+
+ /* first of all read packets from socket */
+ /* check for incoming data available */
+ while( (loop_count < 10) &&
+ (m_connection->m_udpSocket.WaitData(50))) {
+ loop_count++;
+ try {
+ if (packet_queued) {
+ bool data_left = true;
+ u16 peer_id;
+ SharedBuffer<u8> resultdata;
+ while(data_left) {
+ try {
+ data_left = getFromBuffers(peer_id, resultdata);
+ if (data_left) {
+ ConnectionEvent e;
+ e.dataReceived(peer_id, resultdata);
+ m_connection->putEvent(e);
+ }
+ }
+ catch(ProcessedSilentlyException &e) {
+ /* try reading again */
+ }
+ }
+ packet_queued = false;
+ }
+
+ Address sender;
+ s32 received_size = m_connection->m_udpSocket.Receive(sender, *packetdata, packet_maxsize);
+
+ if ((received_size < BASE_HEADER_SIZE) ||
+ (readU32(&packetdata[0]) != m_connection->GetProtocolID()))
+ {
+ LOG(derr_con<<m_connection->getDesc()
+ <<"Receive(): Invalid incoming packet, "
+ <<"size: " << received_size
+ <<", protocol: "
+ << ((received_size >= 4) ? readU32(&packetdata[0]) : -1)
+ << std::endl);
+ continue;
+ }
+
+ u16 peer_id = readPeerId(*packetdata);
+ u8 channelnum = readChannel(*packetdata);
+
+ if (channelnum > CHANNEL_COUNT-1) {
+ LOG(derr_con<<m_connection->getDesc()
+ <<"Receive(): Invalid channel "<<channelnum<<std::endl);
+ throw InvalidIncomingDataException("Channel doesn't exist");
+ }
+
+ /* preserve original peer_id for later usage */
+ u16 packet_peer_id = peer_id;
+
+ /* Try to identify peer by sender address (may happen on join) */
+ if (peer_id == PEER_ID_INEXISTENT) {
+ peer_id = m_connection->lookupPeer(sender);
+ }
+
+ /* The peer was not found in our lists. Add it. */
+ if (peer_id == PEER_ID_INEXISTENT) {
+ peer_id = m_connection->createPeer(sender, MTP_MINETEST_RELIABLE_UDP, 0);
+ }
+
+ PeerHelper peer = m_connection->getPeerNoEx(peer_id);
+
+ if (!peer) {
+ LOG(dout_con<<m_connection->getDesc()
+ <<" got packet from unknown peer_id: "
+ <<peer_id<<" Ignoring."<<std::endl);
+ continue;
+ }
+
+ // Validate peer address
+
+ Address peer_address;
+
+ if (peer->getAddress(MTP_UDP, peer_address)) {
+ if (peer_address != sender) {
+ LOG(derr_con<<m_connection->getDesc()
+ <<m_connection->getDesc()
+ <<" Peer "<<peer_id<<" sending from different address."
+ " Ignoring."<<std::endl);
+ continue;
+ }
+ }
+ else {
+
+ bool invalid_address = true;
+ if (invalid_address) {
+ LOG(derr_con<<m_connection->getDesc()
+ <<m_connection->getDesc()
+ <<" Peer "<<peer_id<<" unknown."
+ " Ignoring."<<std::endl);
+ continue;
+ }
+ }
+
+
+ /* mark peer as seen with id */
+ if (!(packet_peer_id == PEER_ID_INEXISTENT))
+ peer->setSentWithID();
+
+ peer->ResetTimeout();
+
+ Channel *channel = 0;
+
+ if (dynamic_cast<UDPPeer*>(&peer) != 0)
+ {
+ channel = &(dynamic_cast<UDPPeer*>(&peer)->channels[channelnum]);
+ }
+
+ if (channel != 0) {
+ channel->UpdateBytesReceived(received_size);
+ }
+
+ // Throw the received packet to channel->processPacket()
+
+ // Make a new SharedBuffer from the data without the base headers
+ SharedBuffer<u8> strippeddata(received_size - BASE_HEADER_SIZE);
+ memcpy(*strippeddata, &packetdata[BASE_HEADER_SIZE],
+ strippeddata.getSize());
+
+ try{
+ // Process it (the result is some data with no headers made by us)
+ SharedBuffer<u8> resultdata = processPacket
+ (channel, strippeddata, peer_id, channelnum, false);
+
+ LOG(dout_con<<m_connection->getDesc()
+ <<" ProcessPacket from peer_id: " << peer_id
+ << ",channel: " << (channelnum & 0xFF) << ", returned "
+ << resultdata.getSize() << " bytes" <<std::endl);
+
+ ConnectionEvent e;
+ e.dataReceived(peer_id, resultdata);
+ m_connection->putEvent(e);
+ }
+ catch(ProcessedSilentlyException &e) {
+ }
+ catch(ProcessedQueued &e) {
+ packet_queued = true;
+ }
+ }
+ catch(InvalidIncomingDataException &e) {
+ }
+ catch(ProcessedSilentlyException &e) {
+ }
+ }
+}
+
+bool ConnectionReceiveThread::getFromBuffers(u16 &peer_id, SharedBuffer<u8> &dst)
+{
+ std::list<u16> peerids = m_connection->getPeerIDs();
+
+ for(std::list<u16>::iterator j = peerids.begin();
+ j != peerids.end(); ++j)
+ {
+ PeerHelper peer = m_connection->getPeerNoEx(*j);
+ if (!peer)
+ continue;
+
+ if (dynamic_cast<UDPPeer*>(&peer) == 0)
+ continue;
+
+ for(u16 i=0; i<CHANNEL_COUNT; i++)
+ {
+ Channel *channel = &(dynamic_cast<UDPPeer*>(&peer))->channels[i];
+
+ if (checkIncomingBuffers(channel, peer_id, dst)) {
+ return true;
+ }
+ }
+ }
+ return false;
+}
+
+bool ConnectionReceiveThread::checkIncomingBuffers(Channel *channel,
+ u16 &peer_id, SharedBuffer<u8> &dst)
+{
+ u16 firstseqnum = 0;
+ if (channel->incoming_reliables.getFirstSeqnum(firstseqnum))
+ {
+ if (firstseqnum == channel->readNextIncomingSeqNum())
+ {
+ BufferedPacket p = channel->incoming_reliables.popFirst();
+ peer_id = readPeerId(*p.data);
+ u8 channelnum = readChannel(*p.data);
+ u16 seqnum = readU16(&p.data[BASE_HEADER_SIZE+1]);
+
+ LOG(dout_con<<m_connection->getDesc()
+ <<"UNBUFFERING TYPE_RELIABLE"
+ <<" seqnum="<<seqnum
+ <<" peer_id="<<peer_id
+ <<" channel="<<((int)channelnum&0xff)
+ <<std::endl);
+
+ channel->incNextIncomingSeqNum();
+
+ u32 headers_size = BASE_HEADER_SIZE + RELIABLE_HEADER_SIZE;
+ // Get out the inside packet and re-process it
+ SharedBuffer<u8> payload(p.data.getSize() - headers_size);
+ memcpy(*payload, &p.data[headers_size], payload.getSize());
+
+ dst = processPacket(channel, payload, peer_id, channelnum, true);
+ return true;
+ }
+ }
+ return false;
+}
+
+SharedBuffer<u8> ConnectionReceiveThread::processPacket(Channel *channel,
+ SharedBuffer<u8> packetdata, u16 peer_id, u8 channelnum, bool reliable)
+{
+ PeerHelper peer = m_connection->getPeerNoEx(peer_id);
+
+ if (!peer) {
+ errorstream << "Peer not found (possible timeout)" << std::endl;
+ throw ProcessedSilentlyException("Peer not found (possible timeout)");
+ }
+
+ if (packetdata.getSize() < 1)
+ throw InvalidIncomingDataException("packetdata.getSize() < 1");
+
+ u8 type = readU8(&(packetdata[0]));
+
+ if (MAX_UDP_PEERS <= 65535 && peer_id >= MAX_UDP_PEERS) {
+ errorstream << "Something is wrong with peer_id" << std::endl;
+ assert(0);
+ }
+
+ if (type == TYPE_CONTROL)
+ {
+ if (packetdata.getSize() < 2)
+ throw InvalidIncomingDataException("packetdata.getSize() < 2");
+
+ u8 controltype = readU8(&(packetdata[1]));
+
+ if (controltype == CONTROLTYPE_ACK)
+ {
+ assert(channel != 0);
+ if (packetdata.getSize() < 4)
+ throw InvalidIncomingDataException
+ ("packetdata.getSize() < 4 (ACK header size)");
+
+ u16 seqnum = readU16(&packetdata[2]);
+ LOG(dout_con<<m_connection->getDesc()
+ <<" [ CONTROLTYPE_ACK: channelnum="
+ <<((int)channelnum&0xff)<<", peer_id="<<peer_id
+ <<", seqnum="<<seqnum<< " ]"<<std::endl);
+
+ try{
+ BufferedPacket p =
+ channel->outgoing_reliables_sent.popSeqnum(seqnum);
+
+ // only calculate rtt from straight sent packets
+ if (p.resend_count == 0) {
+ // Get round trip time
+ unsigned int current_time = porting::getTimeMs();
+
+ // a overflow is quite unlikely but as it'd result in major
+ // rtt miscalculation we handle it here
+ if (current_time > p.absolute_send_time)
+ {
+ float rtt = (current_time - p.absolute_send_time) / 1000.0;
+
+ // Let peer calculate stuff according to it
+ // (avg_rtt and resend_timeout)
+ dynamic_cast<UDPPeer*>(&peer)->reportRTT(rtt);
+ }
+ else if (p.totaltime > 0)
+ {
+ float rtt = p.totaltime;
+
+ // Let peer calculate stuff according to it
+ // (avg_rtt and resend_timeout)
+ dynamic_cast<UDPPeer*>(&peer)->reportRTT(rtt);
+ }
+ }
+ //put bytes for max bandwidth calculation
+ channel->UpdateBytesSent(p.data.getSize(),1);
+ if (channel->outgoing_reliables_sent.size() == 0)
+ {
+ m_connection->TriggerSend();
+ }
+ }
+ catch(NotFoundException &e) {
+ LOG(derr_con<<m_connection->getDesc()
+ <<"WARNING: ACKed packet not "
+ "in outgoing queue"
+ <<std::endl);
+ channel->UpdatePacketTooLateCounter();
+ }
+ throw ProcessedSilentlyException("Got an ACK");
+ }
+ else if (controltype == CONTROLTYPE_SET_PEER_ID) {
+ // Got a packet to set our peer id
+ if (packetdata.getSize() < 4)
+ throw InvalidIncomingDataException
+ ("packetdata.getSize() < 4 (SET_PEER_ID header size)");
+ u16 peer_id_new = readU16(&packetdata[2]);
+ LOG(dout_con<<m_connection->getDesc()
+ <<"Got new peer id: "<<peer_id_new<<"... "<<std::endl);
+
+ if (m_connection->GetPeerID() != PEER_ID_INEXISTENT)
+ {
+ LOG(derr_con<<m_connection->getDesc()
+ <<"WARNING: Not changing"
+ " existing peer id."<<std::endl);
+ }
+ else
+ {
+ LOG(dout_con<<m_connection->getDesc()<<"changing own peer id"<<std::endl);
+ m_connection->SetPeerID(peer_id_new);
+ }
+
+ ConnectionCommand cmd;
+
+ SharedBuffer<u8> reply(2);
+ writeU8(&reply[0], TYPE_CONTROL);
+ writeU8(&reply[1], CONTROLTYPE_ENABLE_BIG_SEND_WINDOW);
+ cmd.disableLegacy(PEER_ID_SERVER,reply);
+ m_connection->putCommand(cmd);
+
+ throw ProcessedSilentlyException("Got a SET_PEER_ID");
+ }
+ else if (controltype == CONTROLTYPE_PING)
+ {
+ // Just ignore it, the incoming data already reset
+ // the timeout counter
+ LOG(dout_con<<m_connection->getDesc()<<"PING"<<std::endl);
+ throw ProcessedSilentlyException("Got a PING");
+ }
+ else if (controltype == CONTROLTYPE_DISCO)
+ {
+ // Just ignore it, the incoming data already reset
+ // the timeout counter
+ LOG(dout_con<<m_connection->getDesc()
+ <<"DISCO: Removing peer "<<(peer_id)<<std::endl);
+
+ if (m_connection->deletePeer(peer_id, false) == false)
+ {
+ derr_con<<m_connection->getDesc()
+ <<"DISCO: Peer not found"<<std::endl;
+ }
+
+ throw ProcessedSilentlyException("Got a DISCO");
+ }
+ else if (controltype == CONTROLTYPE_ENABLE_BIG_SEND_WINDOW)
+ {
+ dynamic_cast<UDPPeer*>(&peer)->setNonLegacyPeer();
+ throw ProcessedSilentlyException("Got non legacy control");
+ }
+ else{
+ LOG(derr_con<<m_connection->getDesc()
+ <<"INVALID TYPE_CONTROL: invalid controltype="
+ <<((int)controltype&0xff)<<std::endl);
+ throw InvalidIncomingDataException("Invalid control type");
+ }
+ }
+ else if (type == TYPE_ORIGINAL)
+ {
+ if (packetdata.getSize() <= ORIGINAL_HEADER_SIZE)
+ throw InvalidIncomingDataException
+ ("packetdata.getSize() <= ORIGINAL_HEADER_SIZE");
+ LOG(dout_con<<m_connection->getDesc()
+ <<"RETURNING TYPE_ORIGINAL to user"
+ <<std::endl);
+ // Get the inside packet out and return it
+ SharedBuffer<u8> payload(packetdata.getSize() - ORIGINAL_HEADER_SIZE);
+ memcpy(*payload, &(packetdata[ORIGINAL_HEADER_SIZE]), payload.getSize());
+ return payload;
+ }
+ else if (type == TYPE_SPLIT)
+ {
+ Address peer_address;
+
+ if (peer->getAddress(MTP_UDP, peer_address)) {
+
+ // We have to create a packet again for buffering
+ // This isn't actually too bad an idea.
+ BufferedPacket packet = makePacket(
+ peer_address,
+ packetdata,
+ m_connection->GetProtocolID(),
+ peer_id,
+ channelnum);
+
+ // Buffer the packet
+ SharedBuffer<u8> data =
+ peer->addSpiltPacket(channelnum,packet,reliable);
+
+ if (data.getSize() != 0)
+ {
+ LOG(dout_con<<m_connection->getDesc()
+ <<"RETURNING TYPE_SPLIT: Constructed full data, "
+ <<"size="<<data.getSize()<<std::endl);
+ return data;
+ }
+ LOG(dout_con<<m_connection->getDesc()<<"BUFFERED TYPE_SPLIT"<<std::endl);
+ throw ProcessedSilentlyException("Buffered a split packet chunk");
+ }
+ else {
+ //TODO throw some error
+ }
+ }
+ else if (type == TYPE_RELIABLE)
+ {
+ assert(channel != 0);
+ // Recursive reliable packets not allowed
+ if (reliable)
+ throw InvalidIncomingDataException("Found nested reliable packets");
+
+ if (packetdata.getSize() < RELIABLE_HEADER_SIZE)
+ throw InvalidIncomingDataException
+ ("packetdata.getSize() < RELIABLE_HEADER_SIZE");
+
+ u16 seqnum = readU16(&packetdata[1]);
+ bool is_future_packet = false;
+ bool is_old_packet = false;
+
+ /* packet is within our receive window send ack */
+ if (seqnum_in_window(seqnum, channel->readNextIncomingSeqNum(),MAX_RELIABLE_WINDOW_SIZE))
+ {
+ m_connection->sendAck(peer_id,channelnum,seqnum);
+ }
+ else {
+ is_future_packet = seqnum_higher(seqnum, channel->readNextIncomingSeqNum());
+ is_old_packet = seqnum_higher(channel->readNextIncomingSeqNum(), seqnum);
+
+
+ /* packet is not within receive window, don't send ack. *
+ * if this was a valid packet it's gonna be retransmitted */
+ if (is_future_packet)
+ {
+ throw ProcessedSilentlyException("Received packet newer then expected, not sending ack");
+ }
+
+ /* seems like our ack was lost, send another one for a old packet */
+ if (is_old_packet)
+ {
+ LOG(dout_con<<m_connection->getDesc()
+ << "RE-SENDING ACK: peer_id: " << peer_id
+ << ", channel: " << (channelnum&0xFF)
+ << ", seqnum: " << seqnum << std::endl;)
+ m_connection->sendAck(peer_id,channelnum,seqnum);
+
+ // we already have this packet so this one was on wire at least
+ // the current timeout
+ // we don't know how long this packet was on wire don't do silly guessing
+ // dynamic_cast<UDPPeer*>(&peer)->reportRTT(dynamic_cast<UDPPeer*>(&peer)->getResendTimeout());
+
+ throw ProcessedSilentlyException("Retransmitting ack for old packet");
+ }
+ }
+
+ if (seqnum != channel->readNextIncomingSeqNum())
+ {
+ Address peer_address;
+
+ // this is a reliable packet so we have a udp address for sure
+ peer->getAddress(MTP_MINETEST_RELIABLE_UDP, peer_address);
+ // This one comes later, buffer it.
+ // Actually we have to make a packet to buffer one.
+ // Well, we have all the ingredients, so just do it.
+ BufferedPacket packet = con::makePacket(
+ peer_address,
+ packetdata,
+ m_connection->GetProtocolID(),
+ peer_id,
+ channelnum);
+ try{
+ channel->incoming_reliables.insert(packet,channel->readNextIncomingSeqNum());
+
+ LOG(dout_con<<m_connection->getDesc()
+ << "BUFFERING, TYPE_RELIABLE peer_id: " << peer_id
+ << ", channel: " << (channelnum&0xFF)
+ << ", seqnum: " << seqnum << std::endl;)
+
+ throw ProcessedQueued("Buffered future reliable packet");
+ }
+ catch(AlreadyExistsException &e)
+ {
+ }
+ catch(IncomingDataCorruption &e)
+ {
+ ConnectionCommand discon;
+ discon.disconnect_peer(peer_id);
+ m_connection->putCommand(discon);
+
+ LOG(derr_con<<m_connection->getDesc()
+ << "INVALID, TYPE_RELIABLE peer_id: " << peer_id
+ << ", channel: " << (channelnum&0xFF)
+ << ", seqnum: " << seqnum
+ << "DROPPING CLIENT!" << std::endl;)
+ }
+ }
+
+ /* we got a packet to process right now */
+ LOG(dout_con<<m_connection->getDesc()
+ << "RECURSIVE, TYPE_RELIABLE peer_id: " << peer_id
+ << ", channel: " << (channelnum&0xFF)
+ << ", seqnum: " << seqnum << std::endl;)
+
+
+ /* check for resend case */
+ u16 queued_seqnum = 0;
+ if (channel->incoming_reliables.getFirstSeqnum(queued_seqnum))
+ {
+ if (queued_seqnum == seqnum)
+ {
+ BufferedPacket queued_packet = channel->incoming_reliables.popFirst();
+ /** TODO find a way to verify the new against the old packet */
+ }
+ }
+
+ channel->incNextIncomingSeqNum();
+
+ // Get out the inside packet and re-process it
+ SharedBuffer<u8> payload(packetdata.getSize() - RELIABLE_HEADER_SIZE);
+ memcpy(*payload, &packetdata[RELIABLE_HEADER_SIZE], payload.getSize());
+
+ return processPacket(channel, payload, peer_id, channelnum, true);
+ }
+ else
+ {
+ derr_con<<m_connection->getDesc()
+ <<"Got invalid type="<<((int)type&0xff)<<std::endl;
+ throw InvalidIncomingDataException("Invalid packet type");
+ }
+
+ // We should never get here.
+ // If you get here, add an exception or a return to some of the
+ // above conditionals.
+ assert(0);
+ throw BaseException("Error in Channel::ProcessPacket()");
+}
+
+/*
+ Connection
+*/
+
+Connection::Connection(u32 protocol_id, u32 max_packet_size, float timeout,
+ bool ipv6) :
+ m_udpSocket(ipv6),
+ m_command_queue(),
+ m_event_queue(),
+ m_peer_id(0),
+ m_protocol_id(protocol_id),
+ m_sendThread(max_packet_size, timeout),
+ m_receiveThread(max_packet_size),
+ m_info_mutex(),
+ m_bc_peerhandler(0),
+ m_bc_receive_timeout(0),
+ m_shutting_down(false),
+ m_next_remote_peer_id(2)
+{
+ m_udpSocket.setTimeoutMs(5);
+
+ m_sendThread.setParent(this);
+ m_receiveThread.setParent(this);
+
+ m_sendThread.Start();
+ m_receiveThread.Start();
+}
+
+Connection::Connection(u32 protocol_id, u32 max_packet_size, float timeout,
+ bool ipv6, PeerHandler *peerhandler) :
+ m_udpSocket(ipv6),
+ m_command_queue(),
+ m_event_queue(),
+ m_peer_id(0),
+ m_protocol_id(protocol_id),
+ m_sendThread(max_packet_size, timeout),
+ m_receiveThread(max_packet_size),
+ m_info_mutex(),
+ m_bc_peerhandler(peerhandler),
+ m_bc_receive_timeout(0),
+ m_shutting_down(false),
+ m_next_remote_peer_id(2)
+
+{
+ m_udpSocket.setTimeoutMs(5);
+
+ m_sendThread.setParent(this);
+ m_receiveThread.setParent(this);
+
+ m_sendThread.Start();
+ m_receiveThread.Start();
+
+}
+
+
+Connection::~Connection()
+{
+ m_shutting_down = true;
+ // request threads to stop
+ m_sendThread.Stop();
+ m_receiveThread.Stop();
+
+ //TODO for some unkonwn reason send/receive threads do not exit as they're
+ // supposed to be but wait on peer timeout. To speed up shutdown we reduce
+ // timeout to half a second.
+ m_sendThread.setPeerTimeout(0.5);
+
+ // wait for threads to finish
+ m_sendThread.Wait();
+ m_receiveThread.Wait();
+
+ // Delete peers
+ for(std::map<u16, Peer*>::iterator
+ j = m_peers.begin();
+ j != m_peers.end(); ++j)
+ {
+ delete j->second;
+ }
+}
+
+/* Internal stuff */
+void Connection::putEvent(ConnectionEvent &e)
+{
+ assert(e.type != CONNEVENT_NONE);
+ m_event_queue.push_back(e);
+}
+
+PeerHelper Connection::getPeer(u16 peer_id)
+{
+ JMutexAutoLock peerlock(m_peers_mutex);
+ std::map<u16, Peer*>::iterator node = m_peers.find(peer_id);
+
+ if (node == m_peers.end()) {
+ throw PeerNotFoundException("GetPeer: Peer not found (possible timeout)");
+ }
+
+ // Error checking
+ assert(node->second->id == peer_id);
+
+ return PeerHelper(node->second);
+}
+
+PeerHelper Connection::getPeerNoEx(u16 peer_id)
+{
+ JMutexAutoLock peerlock(m_peers_mutex);
+ std::map<u16, Peer*>::iterator node = m_peers.find(peer_id);
+
+ if (node == m_peers.end()) {
+ return PeerHelper(NULL);
+ }
+
+ // Error checking
+ assert(node->second->id == peer_id);
+
+ return PeerHelper(node->second);
+}
+
+/* find peer_id for address */
+u16 Connection::lookupPeer(Address& sender)
+{
+ JMutexAutoLock peerlock(m_peers_mutex);
+ std::map<u16, Peer*>::iterator j;
+ j = m_peers.begin();
+ for(; j != m_peers.end(); ++j)
+ {
+ Peer *peer = j->second;
+ if (peer->isActive())
+ continue;
+
+ Address tocheck;
+
+ if ((peer->getAddress(MTP_MINETEST_RELIABLE_UDP, tocheck)) && (tocheck == sender))
+ return peer->id;
+
+ if ((peer->getAddress(MTP_UDP, tocheck)) && (tocheck == sender))
+ return peer->id;
+ }
+
+ return PEER_ID_INEXISTENT;
+}
+
+std::list<Peer*> Connection::getPeers()
+{
+ std::list<Peer*> list;
+ for(std::map<u16, Peer*>::iterator j = m_peers.begin();
+ j != m_peers.end(); ++j)
+ {
+ Peer *peer = j->second;
+ list.push_back(peer);
+ }
+ return list;
+}
+
+bool Connection::deletePeer(u16 peer_id, bool timeout)
+{
+ Peer *peer = 0;
+
+ /* lock list as short as possible */
+ {
+ JMutexAutoLock peerlock(m_peers_mutex);
+ if (m_peers.find(peer_id) == m_peers.end())
+ return false;
+ peer = m_peers[peer_id];
+ m_peers.erase(peer_id);
+ m_peer_ids.remove(peer_id);
+ }
+
+ Address peer_address;
+ //any peer has a primary address this never fails!
+ peer->getAddress(MTP_PRIMARY, peer_address);
+ // Create event
+ ConnectionEvent e;
+ e.peerRemoved(peer_id, timeout, peer_address);
+ putEvent(e);
+
+
+ peer->Drop();
+ return true;
+}
+
+/* Interface */
+
+ConnectionEvent Connection::getEvent()
+{
+ if (m_event_queue.empty()) {
+ ConnectionEvent e;
+ e.type = CONNEVENT_NONE;
+ return e;
+ }
+ return m_event_queue.pop_frontNoEx();
+}
+
+ConnectionEvent Connection::waitEvent(u32 timeout_ms)
+{
+ try {
+ return m_event_queue.pop_front(timeout_ms);
+ } catch(ItemNotFoundException &ex) {
+ ConnectionEvent e;
+ e.type = CONNEVENT_NONE;
+ return e;
+ }
+}
+
+void Connection::putCommand(ConnectionCommand &c)
+{
+ if (!m_shutting_down) {
+ m_command_queue.push_back(c);
+ m_sendThread.Trigger();
+ }
+}
+
+void Connection::Serve(Address bind_addr)
+{
+ ConnectionCommand c;
+ c.serve(bind_addr);
+ putCommand(c);
+}
+
+void Connection::Connect(Address address)
+{
+ ConnectionCommand c;
+ c.connect(address);
+ putCommand(c);
+}
+
+bool Connection::Connected()
+{
+ JMutexAutoLock peerlock(m_peers_mutex);
+
+ if (m_peers.size() != 1)
+ return false;
+
+ std::map<u16, Peer*>::iterator node = m_peers.find(PEER_ID_SERVER);
+ if (node == m_peers.end())
+ return false;
+
+ if (m_peer_id == PEER_ID_INEXISTENT)
+ return false;
+
+ return true;
+}
+
+void Connection::Disconnect()
+{
+ ConnectionCommand c;
+ c.disconnect();
+ putCommand(c);
+}
+
+u32 Connection::Receive(u16 &peer_id, SharedBuffer<u8> &data)
+{
+ for(;;) {
+ ConnectionEvent e = waitEvent(m_bc_receive_timeout);
+ if (e.type != CONNEVENT_NONE)
+ LOG(dout_con<<getDesc()<<": Receive: got event: "
+ <<e.describe()<<std::endl);
+ switch(e.type) {
+ case CONNEVENT_NONE:
+ throw NoIncomingDataException("No incoming data");
+ case CONNEVENT_DATA_RECEIVED:
+ peer_id = e.peer_id;
+ data = SharedBuffer<u8>(e.data);
+ return e.data.getSize();
+ case CONNEVENT_PEER_ADDED: {
+ UDPPeer tmp(e.peer_id, e.address, this);
+ if (m_bc_peerhandler)
+ m_bc_peerhandler->peerAdded(&tmp);
+ continue; }
+ case CONNEVENT_PEER_REMOVED: {
+ UDPPeer tmp(e.peer_id, e.address, this);
+ if (m_bc_peerhandler)
+ m_bc_peerhandler->deletingPeer(&tmp, e.timeout);
+ continue; }
+ case CONNEVENT_BIND_FAILED:
+ throw ConnectionBindFailed("Failed to bind socket "
+ "(port already in use?)");
+ }
+ }
+ throw NoIncomingDataException("No incoming data");
+}
+
+void Connection::Send(u16 peer_id, u8 channelnum,
+ NetworkPacket* pkt, bool reliable)
+{
+ assert(channelnum < CHANNEL_COUNT);
+
+ ConnectionCommand c;
+
+ c.send(peer_id, channelnum, pkt->oldForgePacket(), reliable);
+ putCommand(c);
+}
+
+Address Connection::GetPeerAddress(u16 peer_id)
+{
+ PeerHelper peer = getPeerNoEx(peer_id);
+
+ if (!peer)
+ throw PeerNotFoundException("No address for peer found!");
+ Address peer_address;
+ peer->getAddress(MTP_PRIMARY, peer_address);
+ return peer_address;
+}
+
+float Connection::getPeerStat(u16 peer_id, rtt_stat_type type)
+{
+ PeerHelper peer = getPeerNoEx(peer_id);
+ if (!peer) return -1;
+ return peer->getStat(type);
+}
+
+float Connection::getLocalStat(rate_stat_type type)
+{
+ PeerHelper peer = getPeerNoEx(PEER_ID_SERVER);
+
+ if (!peer) {
+ assert("Connection::getLocalStat we couldn't get our own peer? are you serious???" == 0);
+ }
+
+ float retval = 0.0;
+
+ for (u16 j=0; j<CHANNEL_COUNT; j++) {
+ switch(type) {
+ case CUR_DL_RATE:
+ retval += dynamic_cast<UDPPeer*>(&peer)->channels[j].getCurrentDownloadRateKB();
+ break;
+ case AVG_DL_RATE:
+ retval += dynamic_cast<UDPPeer*>(&peer)->channels[j].getAvgDownloadRateKB();
+ break;
+ case CUR_INC_RATE:
+ retval += dynamic_cast<UDPPeer*>(&peer)->channels[j].getCurrentIncomingRateKB();
+ break;
+ case AVG_INC_RATE:
+ retval += dynamic_cast<UDPPeer*>(&peer)->channels[j].getAvgIncomingRateKB();
+ break;
+ case AVG_LOSS_RATE:
+ retval += dynamic_cast<UDPPeer*>(&peer)->channels[j].getAvgLossRateKB();
+ break;
+ case CUR_LOSS_RATE:
+ retval += dynamic_cast<UDPPeer*>(&peer)->channels[j].getCurrentLossRateKB();
+ break;
+ default:
+ assert("Connection::getLocalStat Invalid stat type" == 0);
+ }
+ }
+ return retval;
+}
+
+u16 Connection::createPeer(Address& sender, MTProtocols protocol, int fd)
+{
+ // Somebody wants to make a new connection
+
+ // Get a unique peer id (2 or higher)
+ u16 peer_id_new = m_next_remote_peer_id;
+ u16 overflow = MAX_UDP_PEERS;
+
+ /*
+ Find an unused peer id
+ */
+ JMutexAutoLock lock(m_peers_mutex);
+ bool out_of_ids = false;
+ for(;;) {
+ // Check if exists
+ if (m_peers.find(peer_id_new) == m_peers.end())
+
+ break;
+ // Check for overflow
+ if (peer_id_new == overflow) {
+ out_of_ids = true;
+ break;
+ }
+ peer_id_new++;
+ }
+
+ if (out_of_ids) {
+ errorstream << getDesc() << " ran out of peer ids" << std::endl;
+ return PEER_ID_INEXISTENT;
+ }
+
+ // Create a peer
+ Peer *peer = 0;
+ peer = new UDPPeer(peer_id_new, sender, this);
+
+ m_peers[peer->id] = peer;
+ m_peer_ids.push_back(peer->id);
+
+ m_next_remote_peer_id = (peer_id_new +1 ) % MAX_UDP_PEERS;
+
+ LOG(dout_con << getDesc()
+ << "createPeer(): giving peer_id=" << peer_id_new << std::endl);
+
+ ConnectionCommand cmd;
+ SharedBuffer<u8> reply(4);
+ writeU8(&reply[0], TYPE_CONTROL);
+ writeU8(&reply[1], CONTROLTYPE_SET_PEER_ID);
+ writeU16(&reply[2], peer_id_new);
+ cmd.createPeer(peer_id_new,reply);
+ putCommand(cmd);
+
+ // Create peer addition event
+ ConnectionEvent e;
+ e.peerAdded(peer_id_new, sender);
+ putEvent(e);
+
+ // We're now talking to a valid peer_id
+ return peer_id_new;
+}
+
+void Connection::PrintInfo(std::ostream &out)
+{
+ m_info_mutex.Lock();
+ out<<getDesc()<<": ";
+ m_info_mutex.Unlock();
+}
+
+void Connection::PrintInfo()
+{
+ PrintInfo(dout_con);
+}
+
+const std::string Connection::getDesc()
+{
+ return std::string("con(")+
+ itos(m_udpSocket.GetHandle())+"/"+itos(m_peer_id)+")";
+}
+
+void Connection::DisconnectPeer(u16 peer_id)
+{
+ ConnectionCommand discon;
+ discon.disconnect_peer(peer_id);
+ putCommand(discon);
+}
+
+void Connection::sendAck(u16 peer_id, u8 channelnum, u16 seqnum)
+{
+ assert(channelnum < CHANNEL_COUNT);
+
+ LOG(dout_con<<getDesc()
+ <<" Queuing ACK command to peer_id: " << peer_id <<
+ " channel: " << (channelnum & 0xFF) <<
+ " seqnum: " << seqnum << std::endl);
+
+ ConnectionCommand c;
+ SharedBuffer<u8> ack(4);
+ writeU8(&ack[0], TYPE_CONTROL);
+ writeU8(&ack[1], CONTROLTYPE_ACK);
+ writeU16(&ack[2], seqnum);
+
+ c.ack(peer_id, channelnum, ack);
+ putCommand(c);
+ m_sendThread.Trigger();
+}
+
+UDPPeer* Connection::createServerPeer(Address& address)
+{
+ if (getPeerNoEx(PEER_ID_SERVER) != 0)
+ {
+ throw ConnectionException("Already connected to a server");
+ }
+
+ UDPPeer *peer = new UDPPeer(PEER_ID_SERVER, address, this);
+
+ {
+ JMutexAutoLock lock(m_peers_mutex);
+ m_peers[peer->id] = peer;
+ m_peer_ids.push_back(peer->id);
+ }
+
+ return peer;
+}
+
+} // namespace
--- /dev/null
+/*
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#ifndef CONNECTION_HEADER
+#define CONNECTION_HEADER
+
+#include "irrlichttypes_bloated.h"
+#include "socket.h"
+#include "exceptions.h"
+#include "constants.h"
+#include "network/networkpacket.h"
+#include "util/pointer.h"
+#include "util/container.h"
+#include "util/thread.h"
+#include "util/numeric.h"
+#include <iostream>
+#include <fstream>
+#include <list>
+#include <map>
+
+namespace con
+{
+
+/*
+ Exceptions
+*/
+class NotFoundException : public BaseException
+{
+public:
+ NotFoundException(const char *s):
+ BaseException(s)
+ {}
+};
+
+class PeerNotFoundException : public BaseException
+{
+public:
+ PeerNotFoundException(const char *s):
+ BaseException(s)
+ {}
+};
+
+class ConnectionException : public BaseException
+{
+public:
+ ConnectionException(const char *s):
+ BaseException(s)
+ {}
+};
+
+class ConnectionBindFailed : public BaseException
+{
+public:
+ ConnectionBindFailed(const char *s):
+ BaseException(s)
+ {}
+};
+
+class InvalidIncomingDataException : public BaseException
+{
+public:
+ InvalidIncomingDataException(const char *s):
+ BaseException(s)
+ {}
+};
+
+class InvalidOutgoingDataException : public BaseException
+{
+public:
+ InvalidOutgoingDataException(const char *s):
+ BaseException(s)
+ {}
+};
+
+class NoIncomingDataException : public BaseException
+{
+public:
+ NoIncomingDataException(const char *s):
+ BaseException(s)
+ {}
+};
+
+class ProcessedSilentlyException : public BaseException
+{
+public:
+ ProcessedSilentlyException(const char *s):
+ BaseException(s)
+ {}
+};
+
+class ProcessedQueued : public BaseException
+{
+public:
+ ProcessedQueued(const char *s):
+ BaseException(s)
+ {}
+};
+
+class IncomingDataCorruption : public BaseException
+{
+public:
+ IncomingDataCorruption(const char *s):
+ BaseException(s)
+ {}
+};
+
+typedef enum MTProtocols {
+ MTP_PRIMARY,
+ MTP_UDP,
+ MTP_MINETEST_RELIABLE_UDP
+} MTProtocols;
+
+#define SEQNUM_MAX 65535
+inline bool seqnum_higher(u16 totest, u16 base)
+{
+ if (totest > base)
+ {
+ if ((totest - base) > (SEQNUM_MAX/2))
+ return false;
+ else
+ return true;
+ }
+ else
+ {
+ if ((base - totest) > (SEQNUM_MAX/2))
+ return true;
+ else
+ return false;
+ }
+}
+
+inline bool seqnum_in_window(u16 seqnum, u16 next,u16 window_size)
+{
+ u16 window_start = next;
+ u16 window_end = ( next + window_size ) % (SEQNUM_MAX+1);
+
+ if (window_start < window_end)
+ {
+ return ((seqnum >= window_start) && (seqnum < window_end));
+ }
+ else
+ {
+ return ((seqnum < window_end) || (seqnum >= window_start));
+ }
+}
+
+struct BufferedPacket
+{
+ BufferedPacket(u8 *a_data, u32 a_size):
+ data(a_data, a_size), time(0.0), totaltime(0.0), absolute_send_time(-1),
+ resend_count(0)
+ {}
+ BufferedPacket(u32 a_size):
+ data(a_size), time(0.0), totaltime(0.0), absolute_send_time(-1),
+ resend_count(0)
+ {}
+ SharedBuffer<u8> data; // Data of the packet, including headers
+ float time; // Seconds from buffering the packet or re-sending
+ float totaltime; // Seconds from buffering the packet
+ unsigned int absolute_send_time;
+ Address address; // Sender or destination
+ unsigned int resend_count;
+};
+
+// This adds the base headers to the data and makes a packet out of it
+BufferedPacket makePacket(Address &address, u8 *data, u32 datasize,
+ u32 protocol_id, u16 sender_peer_id, u8 channel);
+BufferedPacket makePacket(Address &address, SharedBuffer<u8> &data,
+ u32 protocol_id, u16 sender_peer_id, u8 channel);
+
+// Add the TYPE_ORIGINAL header to the data
+SharedBuffer<u8> makeOriginalPacket(
+ SharedBuffer<u8> data);
+
+// Split data in chunks and add TYPE_SPLIT headers to them
+std::list<SharedBuffer<u8> > makeSplitPacket(
+ SharedBuffer<u8> data,
+ u32 chunksize_max,
+ u16 seqnum);
+
+// Depending on size, make a TYPE_ORIGINAL or TYPE_SPLIT packet
+// Increments split_seqnum if a split packet is made
+std::list<SharedBuffer<u8> > makeAutoSplitPacket(
+ SharedBuffer<u8> data,
+ u32 chunksize_max,
+ u16 &split_seqnum);
+
+// Add the TYPE_RELIABLE header to the data
+SharedBuffer<u8> makeReliablePacket(
+ SharedBuffer<u8> data,
+ u16 seqnum);
+
+struct IncomingSplitPacket
+{
+ IncomingSplitPacket()
+ {
+ time = 0.0;
+ reliable = false;
+ }
+ // Key is chunk number, value is data without headers
+ std::map<u16, SharedBuffer<u8> > chunks;
+ u32 chunk_count;
+ float time; // Seconds from adding
+ bool reliable; // If true, isn't deleted on timeout
+
+ bool allReceived()
+ {
+ return (chunks.size() == chunk_count);
+ }
+};
+
+/*
+=== NOTES ===
+
+A packet is sent through a channel to a peer with a basic header:
+TODO: Should we have a receiver_peer_id also?
+ Header (7 bytes):
+ [0] u32 protocol_id
+ [4] u16 sender_peer_id
+ [6] u8 channel
+sender_peer_id:
+ Unique to each peer.
+ value 0 (PEER_ID_INEXISTENT) is reserved for making new connections
+ value 1 (PEER_ID_SERVER) is reserved for server
+ these constants are defined in constants.h
+channel:
+ The lower the number, the higher the priority is.
+ Only channels 0, 1 and 2 exist.
+*/
+#define BASE_HEADER_SIZE 7
+#define CHANNEL_COUNT 3
+/*
+Packet types:
+
+CONTROL: This is a packet used by the protocol.
+- When this is processed, nothing is handed to the user.
+ Header (2 byte):
+ [0] u8 type
+ [1] u8 controltype
+controltype and data description:
+ CONTROLTYPE_ACK
+ [2] u16 seqnum
+ CONTROLTYPE_SET_PEER_ID
+ [2] u16 peer_id_new
+ CONTROLTYPE_PING
+ - There is no actual reply, but this can be sent in a reliable
+ packet to get a reply
+ CONTROLTYPE_DISCO
+*/
+#define TYPE_CONTROL 0
+#define CONTROLTYPE_ACK 0
+#define CONTROLTYPE_SET_PEER_ID 1
+#define CONTROLTYPE_PING 2
+#define CONTROLTYPE_DISCO 3
+#define CONTROLTYPE_ENABLE_BIG_SEND_WINDOW 4
+
+/*
+ORIGINAL: This is a plain packet with no control and no error
+checking at all.
+- When this is processed, it is directly handed to the user.
+ Header (1 byte):
+ [0] u8 type
+*/
+#define TYPE_ORIGINAL 1
+#define ORIGINAL_HEADER_SIZE 1
+/*
+SPLIT: These are sequences of packets forming one bigger piece of
+data.
+- When processed and all the packet_nums 0...packet_count-1 are
+ present (this should be buffered), the resulting data shall be
+ directly handed to the user.
+- If the data fails to come up in a reasonable time, the buffer shall
+ be silently discarded.
+- These can be sent as-is or atop of a RELIABLE packet stream.
+ Header (7 bytes):
+ [0] u8 type
+ [1] u16 seqnum
+ [3] u16 chunk_count
+ [5] u16 chunk_num
+*/
+#define TYPE_SPLIT 2
+/*
+RELIABLE: Delivery of all RELIABLE packets shall be forced by ACKs,
+and they shall be delivered in the same order as sent. This is done
+with a buffer in the receiving and transmitting end.
+- When this is processed, the contents of each packet is recursively
+ processed as packets.
+ Header (3 bytes):
+ [0] u8 type
+ [1] u16 seqnum
+
+*/
+#define TYPE_RELIABLE 3
+#define RELIABLE_HEADER_SIZE 3
+#define SEQNUM_INITIAL 65500
+
+/*
+ A buffer which stores reliable packets and sorts them internally
+ for fast access to the smallest one.
+*/
+
+typedef std::list<BufferedPacket>::iterator RPBSearchResult;
+
+class ReliablePacketBuffer
+{
+public:
+ ReliablePacketBuffer();
+
+ bool getFirstSeqnum(u16& result);
+
+ BufferedPacket popFirst();
+ BufferedPacket popSeqnum(u16 seqnum);
+ void insert(BufferedPacket &p,u16 next_expected);
+
+ void incrementTimeouts(float dtime);
+ std::list<BufferedPacket> getTimedOuts(float timeout,
+ unsigned int max_packets);
+
+ void print();
+ bool empty();
+ bool containsPacket(u16 seqnum);
+ RPBSearchResult notFound();
+ u32 size();
+
+
+private:
+ RPBSearchResult findPacket(u16 seqnum);
+
+ std::list<BufferedPacket> m_list;
+ u32 m_list_size;
+
+ u16 m_oldest_non_answered_ack;
+
+ JMutex m_list_mutex;
+};
+
+/*
+ A buffer for reconstructing split packets
+*/
+
+class IncomingSplitBuffer
+{
+public:
+ ~IncomingSplitBuffer();
+ /*
+ Returns a reference counted buffer of length != 0 when a full split
+ packet is constructed. If not, returns one of length 0.
+ */
+ SharedBuffer<u8> insert(BufferedPacket &p, bool reliable);
+
+ void removeUnreliableTimedOuts(float dtime, float timeout);
+
+private:
+ // Key is seqnum
+ std::map<u16, IncomingSplitPacket*> m_buf;
+
+ JMutex m_map_mutex;
+};
+
+struct OutgoingPacket
+{
+ u16 peer_id;
+ u8 channelnum;
+ SharedBuffer<u8> data;
+ bool reliable;
+ bool ack;
+
+ OutgoingPacket(u16 peer_id_, u8 channelnum_, SharedBuffer<u8> data_,
+ bool reliable_,bool ack_=false):
+ peer_id(peer_id_),
+ channelnum(channelnum_),
+ data(data_),
+ reliable(reliable_),
+ ack(ack_)
+ {
+ }
+};
+
+enum ConnectionCommandType{
+ CONNCMD_NONE,
+ CONNCMD_SERVE,
+ CONNCMD_CONNECT,
+ CONNCMD_DISCONNECT,
+ CONNCMD_DISCONNECT_PEER,
+ CONNCMD_SEND,
+ CONNCMD_SEND_TO_ALL,
+ CONCMD_ACK,
+ CONCMD_CREATE_PEER,
+ CONCMD_DISABLE_LEGACY
+};
+
+struct ConnectionCommand
+{
+ enum ConnectionCommandType type;
+ Address address;
+ u16 peer_id;
+ u8 channelnum;
+ Buffer<u8> data;
+ bool reliable;
+ bool raw;
+
+ ConnectionCommand(): type(CONNCMD_NONE), peer_id(PEER_ID_INEXISTENT), reliable(false), raw(false) {}
+
+ void serve(Address address_)
+ {
+ type = CONNCMD_SERVE;
+ address = address_;
+ }
+ void connect(Address address_)
+ {
+ type = CONNCMD_CONNECT;
+ address = address_;
+ }
+ void disconnect()
+ {
+ type = CONNCMD_DISCONNECT;
+ }
+ void disconnect_peer(u16 peer_id_)
+ {
+ type = CONNCMD_DISCONNECT_PEER;
+ peer_id = peer_id_;
+ }
+ void send(u16 peer_id_, u8 channelnum_,
+ SharedBuffer<u8> data_, bool reliable_)
+ {
+ type = CONNCMD_SEND;
+ peer_id = peer_id_;
+ channelnum = channelnum_;
+ data = data_;
+ reliable = reliable_;
+ }
+ void sendToAll(u8 channelnum_, SharedBuffer<u8> data_, bool reliable_)
+ {
+ type = CONNCMD_SEND_TO_ALL;
+ channelnum = channelnum_;
+ data = data_;
+ reliable = reliable_;
+ }
+
+ void ack(u16 peer_id_, u8 channelnum_, SharedBuffer<u8> data_)
+ {
+ type = CONCMD_ACK;
+ peer_id = peer_id_;
+ channelnum = channelnum_;
+ data = data_;
+ reliable = false;
+ }
+
+ void createPeer(u16 peer_id_, SharedBuffer<u8> data_)
+ {
+ type = CONCMD_CREATE_PEER;
+ peer_id = peer_id_;
+ data = data_;
+ channelnum = 0;
+ reliable = true;
+ raw = true;
+ }
+
+ void disableLegacy(u16 peer_id_, SharedBuffer<u8> data_)
+ {
+ type = CONCMD_DISABLE_LEGACY;
+ peer_id = peer_id_;
+ data = data_;
+ channelnum = 0;
+ reliable = true;
+ raw = true;
+ }
+};
+
+class Channel
+{
+
+public:
+ u16 readNextIncomingSeqNum();
+ u16 incNextIncomingSeqNum();
+
+ u16 getOutgoingSequenceNumber(bool& successfull);
+ u16 readOutgoingSequenceNumber();
+ bool putBackSequenceNumber(u16);
+
+ u16 readNextSplitSeqNum();
+ void setNextSplitSeqNum(u16 seqnum);
+
+ // This is for buffering the incoming packets that are coming in
+ // the wrong order
+ ReliablePacketBuffer incoming_reliables;
+ // This is for buffering the sent packets so that the sender can
+ // re-send them if no ACK is received
+ ReliablePacketBuffer outgoing_reliables_sent;
+
+ //queued reliable packets
+ Queue<BufferedPacket> queued_reliables;
+
+ //queue commands prior splitting to packets
+ Queue<ConnectionCommand> queued_commands;
+
+ IncomingSplitBuffer incoming_splits;
+
+ Channel();
+ ~Channel();
+
+ void UpdatePacketLossCounter(unsigned int count);
+ void UpdatePacketTooLateCounter();
+ void UpdateBytesSent(unsigned int bytes,unsigned int packages=1);
+ void UpdateBytesLost(unsigned int bytes);
+ void UpdateBytesReceived(unsigned int bytes);
+
+ void UpdateTimers(float dtime, bool legacy_peer);
+
+ const float getCurrentDownloadRateKB()
+ { JMutexAutoLock lock(m_internal_mutex); return cur_kbps; };
+ const float getMaxDownloadRateKB()
+ { JMutexAutoLock lock(m_internal_mutex); return max_kbps; };
+
+ const float getCurrentLossRateKB()
+ { JMutexAutoLock lock(m_internal_mutex); return cur_kbps_lost; };
+ const float getMaxLossRateKB()
+ { JMutexAutoLock lock(m_internal_mutex); return max_kbps_lost; };
+
+ const float getCurrentIncomingRateKB()
+ { JMutexAutoLock lock(m_internal_mutex); return cur_incoming_kbps; };
+ const float getMaxIncomingRateKB()
+ { JMutexAutoLock lock(m_internal_mutex); return max_incoming_kbps; };
+
+ const float getAvgDownloadRateKB()
+ { JMutexAutoLock lock(m_internal_mutex); return avg_kbps; };
+ const float getAvgLossRateKB()
+ { JMutexAutoLock lock(m_internal_mutex); return avg_kbps_lost; };
+ const float getAvgIncomingRateKB()
+ { JMutexAutoLock lock(m_internal_mutex); return avg_incoming_kbps; };
+
+ const unsigned int getWindowSize() const { return window_size; };
+
+ void setWindowSize(unsigned int size) { window_size = size; };
+private:
+ JMutex m_internal_mutex;
+ int window_size;
+
+ u16 next_incoming_seqnum;
+
+ u16 next_outgoing_seqnum;
+ u16 next_outgoing_split_seqnum;
+
+ unsigned int current_packet_loss;
+ unsigned int current_packet_too_late;
+ unsigned int current_packet_successfull;
+ float packet_loss_counter;
+
+ unsigned int current_bytes_transfered;
+ unsigned int current_bytes_received;
+ unsigned int current_bytes_lost;
+ float max_kbps;
+ float cur_kbps;
+ float avg_kbps;
+ float max_incoming_kbps;
+ float cur_incoming_kbps;
+ float avg_incoming_kbps;
+ float max_kbps_lost;
+ float cur_kbps_lost;
+ float avg_kbps_lost;
+ float bpm_counter;
+
+ unsigned int rate_samples;
+};
+
+class Peer;
+
+enum PeerChangeType
+{
+ PEER_ADDED,
+ PEER_REMOVED
+};
+struct PeerChange
+{
+ PeerChangeType type;
+ u16 peer_id;
+ bool timeout;
+};
+
+class PeerHandler
+{
+public:
+
+ PeerHandler()
+ {
+ }
+ virtual ~PeerHandler()
+ {
+ }
+
+ /*
+ This is called after the Peer has been inserted into the
+ Connection's peer container.
+ */
+ virtual void peerAdded(Peer *peer) = 0;
+ /*
+ This is called before the Peer has been removed from the
+ Connection's peer container.
+ */
+ virtual void deletingPeer(Peer *peer, bool timeout) = 0;
+};
+
+class PeerHelper
+{
+public:
+ PeerHelper();
+ PeerHelper(Peer* peer);
+ ~PeerHelper();
+
+ PeerHelper& operator=(Peer* peer);
+ Peer* operator->() const;
+ bool operator!();
+ Peer* operator&() const;
+ bool operator!=(void* ptr);
+
+private:
+ Peer* m_peer;
+};
+
+class Connection;
+
+typedef enum {
+ MIN_RTT,
+ MAX_RTT,
+ AVG_RTT,
+ MIN_JITTER,
+ MAX_JITTER,
+ AVG_JITTER
+} rtt_stat_type;
+
+typedef enum {
+ CUR_DL_RATE,
+ AVG_DL_RATE,
+ CUR_INC_RATE,
+ AVG_INC_RATE,
+ CUR_LOSS_RATE,
+ AVG_LOSS_RATE,
+} rate_stat_type;
+
+class Peer {
+ public:
+ friend class PeerHelper;
+
+ Peer(Address address_,u16 id_,Connection* connection) :
+ id(id_),
+ m_increment_packets_remaining(9),
+ m_increment_bytes_remaining(0),
+ m_pending_deletion(false),
+ m_connection(connection),
+ address(address_),
+ m_ping_timer(0.0),
+ m_last_rtt(-1.0),
+ m_usage(0),
+ m_timeout_counter(0.0),
+ m_last_timeout_check(porting::getTimeMs()),
+ m_has_sent_with_id(false)
+ {
+ m_rtt.avg_rtt = -1.0;
+ m_rtt.jitter_avg = -1.0;
+ m_rtt.jitter_max = 0.0;
+ m_rtt.max_rtt = 0.0;
+ m_rtt.jitter_min = FLT_MAX;
+ m_rtt.min_rtt = FLT_MAX;
+ };
+
+ virtual ~Peer() {
+ JMutexAutoLock usage_lock(m_exclusive_access_mutex);
+ assert(m_usage == 0);
+ };
+
+ // Unique id of the peer
+ u16 id;
+
+ void Drop();
+
+ virtual void PutReliableSendCommand(ConnectionCommand &c,
+ unsigned int max_packet_size) {};
+
+ virtual bool isActive() { return false; };
+
+ virtual bool getAddress(MTProtocols type, Address& toset) = 0;
+
+ void ResetTimeout()
+ {JMutexAutoLock lock(m_exclusive_access_mutex); m_timeout_counter=0.0; };
+
+ bool isTimedOut(float timeout);
+
+ void setSentWithID()
+ { JMutexAutoLock lock(m_exclusive_access_mutex); m_has_sent_with_id = true; };
+
+ bool hasSentWithID()
+ { JMutexAutoLock lock(m_exclusive_access_mutex); return m_has_sent_with_id; };
+
+ unsigned int m_increment_packets_remaining;
+ unsigned int m_increment_bytes_remaining;
+
+ virtual u16 getNextSplitSequenceNumber(u8 channel) { return 0; };
+ virtual void setNextSplitSequenceNumber(u8 channel, u16 seqnum) {};
+ virtual SharedBuffer<u8> addSpiltPacket(u8 channel,
+ BufferedPacket toadd,
+ bool reliable)
+ {
+ fprintf(stderr,"Peer: addSplitPacket called, this is supposed to be never called!\n");
+ return SharedBuffer<u8>(0);
+ };
+
+ virtual bool Ping(float dtime, SharedBuffer<u8>& data) { return false; };
+
+ virtual float getStat(rtt_stat_type type) const {
+ switch (type) {
+ case MIN_RTT:
+ return m_rtt.min_rtt;
+ case MAX_RTT:
+ return m_rtt.max_rtt;
+ case AVG_RTT:
+ return m_rtt.avg_rtt;
+ case MIN_JITTER:
+ return m_rtt.jitter_min;
+ case MAX_JITTER:
+ return m_rtt.jitter_max;
+ case AVG_JITTER:
+ return m_rtt.jitter_avg;
+ }
+ return -1;
+ }
+ protected:
+ virtual void reportRTT(float rtt) {};
+
+ void RTTStatistics(float rtt,
+ std::string profiler_id="",
+ unsigned int num_samples=1000);
+
+ bool IncUseCount();
+ void DecUseCount();
+
+ JMutex m_exclusive_access_mutex;
+
+ bool m_pending_deletion;
+
+ Connection* m_connection;
+
+ // Address of the peer
+ Address address;
+
+ // Ping timer
+ float m_ping_timer;
+ private:
+
+ struct rttstats {
+ float jitter_min;
+ float jitter_max;
+ float jitter_avg;
+ float min_rtt;
+ float max_rtt;
+ float avg_rtt;
+ };
+
+ rttstats m_rtt;
+ float m_last_rtt;
+
+ // current usage count
+ unsigned int m_usage;
+
+ // Seconds from last receive
+ float m_timeout_counter;
+
+ u32 m_last_timeout_check;
+
+ bool m_has_sent_with_id;
+};
+
+class UDPPeer : public Peer
+{
+public:
+
+ friend class PeerHelper;
+ friend class ConnectionReceiveThread;
+ friend class ConnectionSendThread;
+ friend class Connection;
+
+ UDPPeer(u16 a_id, Address a_address, Connection* connection);
+ virtual ~UDPPeer() {};
+
+ void PutReliableSendCommand(ConnectionCommand &c,
+ unsigned int max_packet_size);
+
+ bool isActive()
+ { return ((hasSentWithID()) && (!m_pending_deletion)); };
+
+ bool getAddress(MTProtocols type, Address& toset);
+
+ void setNonLegacyPeer();
+
+ bool getLegacyPeer()
+ { return m_legacy_peer; }
+
+ u16 getNextSplitSequenceNumber(u8 channel);
+ void setNextSplitSequenceNumber(u8 channel, u16 seqnum);
+
+ SharedBuffer<u8> addSpiltPacket(u8 channel,
+ BufferedPacket toadd,
+ bool reliable);
+
+
+protected:
+ /*
+ Calculates avg_rtt and resend_timeout.
+ rtt=-1 only recalculates resend_timeout
+ */
+ void reportRTT(float rtt);
+
+ void RunCommandQueues(
+ unsigned int max_packet_size,
+ unsigned int maxcommands,
+ unsigned int maxtransfer);
+
+ float getResendTimeout()
+ { JMutexAutoLock lock(m_exclusive_access_mutex); return resend_timeout; }
+
+ void setResendTimeout(float timeout)
+ { JMutexAutoLock lock(m_exclusive_access_mutex); resend_timeout = timeout; }
+ bool Ping(float dtime,SharedBuffer<u8>& data);
+
+ Channel channels[CHANNEL_COUNT];
+ bool m_pending_disconnect;
+private:
+ // This is changed dynamically
+ float resend_timeout;
+
+ bool processReliableSendCommand(
+ ConnectionCommand &c,
+ unsigned int max_packet_size);
+
+ bool m_legacy_peer;
+};
+
+/*
+ Connection
+*/
+
+enum ConnectionEventType{
+ CONNEVENT_NONE,
+ CONNEVENT_DATA_RECEIVED,
+ CONNEVENT_PEER_ADDED,
+ CONNEVENT_PEER_REMOVED,
+ CONNEVENT_BIND_FAILED,
+};
+
+struct ConnectionEvent
+{
+ enum ConnectionEventType type;
+ u16 peer_id;
+ Buffer<u8> data;
+ bool timeout;
+ Address address;
+
+ ConnectionEvent(): type(CONNEVENT_NONE) {}
+
+ std::string describe()
+ {
+ switch(type) {
+ case CONNEVENT_NONE:
+ return "CONNEVENT_NONE";
+ case CONNEVENT_DATA_RECEIVED:
+ return "CONNEVENT_DATA_RECEIVED";
+ case CONNEVENT_PEER_ADDED:
+ return "CONNEVENT_PEER_ADDED";
+ case CONNEVENT_PEER_REMOVED:
+ return "CONNEVENT_PEER_REMOVED";
+ case CONNEVENT_BIND_FAILED:
+ return "CONNEVENT_BIND_FAILED";
+ }
+ return "Invalid ConnectionEvent";
+ }
+
+ void dataReceived(u16 peer_id_, SharedBuffer<u8> data_)
+ {
+ type = CONNEVENT_DATA_RECEIVED;
+ peer_id = peer_id_;
+ data = data_;
+ }
+ void peerAdded(u16 peer_id_, Address address_)
+ {
+ type = CONNEVENT_PEER_ADDED;
+ peer_id = peer_id_;
+ address = address_;
+ }
+ void peerRemoved(u16 peer_id_, bool timeout_, Address address_)
+ {
+ type = CONNEVENT_PEER_REMOVED;
+ peer_id = peer_id_;
+ timeout = timeout_;
+ address = address_;
+ }
+ void bindFailed()
+ {
+ type = CONNEVENT_BIND_FAILED;
+ }
+};
+
+class ConnectionSendThread : public JThread {
+
+public:
+ friend class UDPPeer;
+
+ ConnectionSendThread(unsigned int max_packet_size, float timeout);
+
+ void * Thread ();
+
+ void Trigger();
+
+ void setParent(Connection* parent) {
+ assert(parent != NULL);
+ m_connection = parent;
+ }
+
+ void setPeerTimeout(float peer_timeout)
+ { m_timeout = peer_timeout; }
+
+private:
+ void runTimeouts (float dtime);
+ void rawSend (const BufferedPacket &packet);
+ bool rawSendAsPacket(u16 peer_id, u8 channelnum,
+ SharedBuffer<u8> data, bool reliable);
+
+ void processReliableCommand (ConnectionCommand &c);
+ void processNonReliableCommand (ConnectionCommand &c);
+ void serve (Address bind_address);
+ void connect (Address address);
+ void disconnect ();
+ void disconnect_peer(u16 peer_id);
+ void send (u16 peer_id, u8 channelnum,
+ SharedBuffer<u8> data);
+ void sendReliable (ConnectionCommand &c);
+ void sendToAll (u8 channelnum,
+ SharedBuffer<u8> data);
+ void sendToAllReliable(ConnectionCommand &c);
+
+ void sendPackets (float dtime);
+
+ void sendAsPacket (u16 peer_id, u8 channelnum,
+ SharedBuffer<u8> data,bool ack=false);
+
+ void sendAsPacketReliable(BufferedPacket& p, Channel* channel);
+
+ bool packetsQueued();
+
+ Connection* m_connection;
+ unsigned int m_max_packet_size;
+ float m_timeout;
+ Queue<OutgoingPacket> m_outgoing_queue;
+ JSemaphore m_send_sleep_semaphore;
+
+ unsigned int m_iteration_packets_avaialble;
+ unsigned int m_max_commands_per_iteration;
+ unsigned int m_max_data_packets_per_iteration;
+ unsigned int m_max_packets_requeued;
+};
+
+class ConnectionReceiveThread : public JThread {
+public:
+ ConnectionReceiveThread(unsigned int max_packet_size);
+
+ void * Thread ();
+
+ void setParent(Connection* parent) {
+ assert(parent != NULL);
+ m_connection = parent;
+ }
+
+private:
+ void receive ();
+
+ // Returns next data from a buffer if possible
+ // If found, returns true; if not, false.
+ // If found, sets peer_id and dst
+ bool getFromBuffers (u16 &peer_id, SharedBuffer<u8> &dst);
+
+ bool checkIncomingBuffers(Channel *channel, u16 &peer_id,
+ SharedBuffer<u8> &dst);
+
+ /*
+ Processes a packet with the basic header stripped out.
+ Parameters:
+ packetdata: Data in packet (with no base headers)
+ peer_id: peer id of the sender of the packet in question
+ channelnum: channel on which the packet was sent
+ reliable: true if recursing into a reliable packet
+ */
+ SharedBuffer<u8> processPacket(Channel *channel,
+ SharedBuffer<u8> packetdata, u16 peer_id,
+ u8 channelnum, bool reliable);
+
+
+ Connection* m_connection;
+};
+
+class Connection
+{
+public:
+ friend class ConnectionSendThread;
+ friend class ConnectionReceiveThread;
+
+ Connection(u32 protocol_id, u32 max_packet_size, float timeout, bool ipv6);
+ Connection(u32 protocol_id, u32 max_packet_size, float timeout, bool ipv6,
+ PeerHandler *peerhandler);
+ ~Connection();
+
+ /* Interface */
+ ConnectionEvent getEvent();
+ ConnectionEvent waitEvent(u32 timeout_ms);
+ void putCommand(ConnectionCommand &c);
+
+ void SetTimeoutMs(int timeout) { m_bc_receive_timeout = timeout; }
+ void Serve(Address bind_addr);
+ void Connect(Address address);
+ bool Connected();
+ void Disconnect();
+ u32 Receive(u16 &peer_id, SharedBuffer<u8> &data);
+ void Send(u16 peer_id, u8 channelnum, NetworkPacket* pkt, bool reliable);
+ u16 GetPeerID() { return m_peer_id; }
+ Address GetPeerAddress(u16 peer_id);
+ float getPeerStat(u16 peer_id, rtt_stat_type type);
+ float getLocalStat(rate_stat_type type);
+ const u32 GetProtocolID() const { return m_protocol_id; };
+ const std::string getDesc();
+ void DisconnectPeer(u16 peer_id);
+
+protected:
+ PeerHelper getPeer(u16 peer_id);
+ PeerHelper getPeerNoEx(u16 peer_id);
+ u16 lookupPeer(Address& sender);
+
+ u16 createPeer(Address& sender, MTProtocols protocol, int fd);
+ UDPPeer* createServerPeer(Address& sender);
+ bool deletePeer(u16 peer_id, bool timeout);
+
+ void SetPeerID(u16 id) { m_peer_id = id; }
+
+ void sendAck(u16 peer_id, u8 channelnum, u16 seqnum);
+
+ void PrintInfo(std::ostream &out);
+ void PrintInfo();
+
+ std::list<u16> getPeerIDs() { return m_peer_ids; }
+
+ UDPSocket m_udpSocket;
+ MutexedQueue<ConnectionCommand> m_command_queue;
+
+ void putEvent(ConnectionEvent &e);
+
+ void TriggerSend()
+ { m_sendThread.Trigger(); }
+private:
+ std::list<Peer*> getPeers();
+
+ MutexedQueue<ConnectionEvent> m_event_queue;
+
+ u16 m_peer_id;
+ u32 m_protocol_id;
+
+ std::map<u16, Peer*> m_peers;
+ std::list<u16> m_peer_ids;
+ JMutex m_peers_mutex;
+
+ ConnectionSendThread m_sendThread;
+ ConnectionReceiveThread m_receiveThread;
+
+ JMutex m_info_mutex;
+
+ // Backwards compatibility
+ PeerHandler *m_bc_peerhandler;
+ int m_bc_receive_timeout;
+
+ bool m_shutting_down;
+
+ u16 m_next_remote_peer_id;
+};
+
+} // namespace
+
+#endif
/*
Minetest
-Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
Copyright (C) 2015 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
This program is free software; you can redistribute it and/or modify
#include "networkpacket.h"
#include "debug.h"
+#include "exceptions.h"
#include "util/serialize.h"
NetworkPacket::NetworkPacket(u8 *data, u32 datasize, u16 peer_id):
-m_peer_id(peer_id)
+m_read_offset(0), m_peer_id(peer_id)
{
m_read_offset = 0;
m_datasize = datasize - 2;
- // Copy data packet to remove opcode
- m_data = new u8[m_datasize];
+ // split command and datas
+ m_command = readU16(&data[0]);
+ m_data = std::vector<u8>(&data[2], &data[2 + m_datasize]);
+}
- memcpy(m_data, &data[2], m_datasize);
+NetworkPacket::NetworkPacket(u16 command, u32 datasize, u16 peer_id):
+m_datasize(datasize), m_read_offset(0), m_command(command), m_peer_id(peer_id)
+{
+ m_data.resize(m_datasize);
+}
+
+NetworkPacket::NetworkPacket(u16 command, u32 datasize):
+m_datasize(datasize), m_read_offset(0), m_command(command), m_peer_id(0)
+{
+ m_data.resize(m_datasize);
}
NetworkPacket::~NetworkPacket()
{
- delete [] m_data;
+ m_data.clear();
}
char* NetworkPacket::getString(u32 from_offset)
{
- assert(from_offset < m_datasize);
+ if (from_offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
return (char*)&m_data[from_offset];
}
-char NetworkPacket::getChar(u32 offset)
+void NetworkPacket::putRawString(const char* src, u32 len)
{
- assert(offset < m_datasize);
+ if (m_read_offset + len * sizeof(char) >= m_datasize) {
+ m_datasize += len * sizeof(char);
+ m_data.resize(m_datasize);
+ }
- return m_data[offset];
+ memcpy(&m_data[m_read_offset], src, len);
+ m_read_offset += len;
}
NetworkPacket& NetworkPacket::operator>>(std::string& dst)
return *this;
}
-
dst.reserve(strLen);
dst.append((char*)&m_data[m_read_offset], strLen);
- m_read_offset += strLen*sizeof(char);
+ m_read_offset += strLen * sizeof(char);
+ return *this;
+}
+
+NetworkPacket& NetworkPacket::operator<<(std::string src)
+{
+ u16 msgsize = src.size();
+ if (msgsize > 0xFFFF) {
+ msgsize = 0xFFFF;
+ }
+
+ *this << msgsize;
+
+ if (m_read_offset + msgsize * sizeof(char) >= m_datasize) {
+ m_datasize += msgsize * sizeof(char);
+ m_data.resize(m_datasize);
+ }
+
+ memcpy(&m_data[m_read_offset], src.c_str(), msgsize);
+ m_read_offset += msgsize;
+
return *this;
}
+void NetworkPacket::putLongString(std::string src)
+{
+ u32 msgsize = src.size();
+ if (msgsize > 0xFFFFFFFF) {
+ msgsize = 0xFFFFFFFF;
+ }
+
+ *this << msgsize;
+
+ if (m_read_offset + msgsize * sizeof(char) >= m_datasize) {
+ m_datasize += msgsize * sizeof(char);
+ m_data.resize(m_datasize);
+ }
+
+ memcpy(&m_data[m_read_offset], src.c_str(), msgsize);
+ m_read_offset += msgsize;
+}
+
NetworkPacket& NetworkPacket::operator>>(std::wstring& dst)
{
u16 strLen = readU16(&m_data[m_read_offset]);
return *this;
}
+NetworkPacket& NetworkPacket::operator<<(std::wstring src)
+{
+ u16 msgsize = src.size();
+ if (msgsize > 0xFFFF) {
+ msgsize = 0xFFFF;
+ }
+
+ *this << msgsize;
+
+ // Write string
+ for (u16 i=0; i<msgsize; i++) {
+ *this << (u16) src[i];
+ }
+
+ return *this;
+}
+
std::string NetworkPacket::readLongString()
{
u32 strLen = readU32(&m_data[m_read_offset]);
NetworkPacket& NetworkPacket::operator>>(char& dst)
{
- dst = getChar(m_read_offset);
+ if (m_read_offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
+
+ dst = readU8(&m_data[m_read_offset]);
- m_read_offset += sizeof(char);
+ incrOffset<char>();
return *this;
}
-u8* NetworkPacket::getU8Ptr(u32 from_offset)
+char NetworkPacket::getChar(u32 offset)
{
- assert(from_offset < m_datasize);
+ if (offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
- return (u8*)&m_data[from_offset];
+ return readU8(&m_data[offset]);
}
-u8 NetworkPacket::getU8(u32 offset)
+NetworkPacket& NetworkPacket::operator<<(char src)
{
- assert(offset < m_datasize);
+ checkDataSize<u8>();
+
+ writeU8(&m_data[m_read_offset], src);
- return m_data[offset];
+ incrOffset<char>();
+ return *this;
}
-NetworkPacket& NetworkPacket::operator>>(u8& dst)
+NetworkPacket& NetworkPacket::operator<<(u8 src)
{
- assert(m_read_offset < m_datasize);
- dst = m_data[m_read_offset];
+ checkDataSize<u8>();
- m_read_offset += sizeof(u8);
+ writeU8(&m_data[m_read_offset], src);
+
+ incrOffset<u8>();
return *this;
}
-NetworkPacket& NetworkPacket::operator>>(bool& dst)
+NetworkPacket& NetworkPacket::operator<<(bool src)
{
- assert(m_read_offset < m_datasize);
- dst = m_data[m_read_offset];
+ checkDataSize<u8>();
- m_read_offset += sizeof(u8);
+ writeU8(&m_data[m_read_offset], src);
+
+ incrOffset<u8>();
return *this;
}
-u16 NetworkPacket::getU16(u32 from_offset)
+NetworkPacket& NetworkPacket::operator<<(u16 src)
{
- assert(from_offset < m_datasize);
+ checkDataSize<u16>();
- return readU16(&m_data[from_offset]);
+ writeU16(&m_data[m_read_offset], src);
+
+ incrOffset<u16>();
+ return *this;
}
-NetworkPacket& NetworkPacket::operator>>(u16& dst)
+NetworkPacket& NetworkPacket::operator<<(u32 src)
{
- dst = getU16(m_read_offset);
+ checkDataSize<u32>();
- m_read_offset += sizeof(u16);
+ writeU32(&m_data[m_read_offset], src);
+
+ incrOffset<u32>();
return *this;
}
-u32 NetworkPacket::getU32(u32 from_offset)
+NetworkPacket& NetworkPacket::operator<<(u64 src)
{
- assert(from_offset < m_datasize);
+ checkDataSize<u64>();
+
+ writeU64(&m_data[m_read_offset], src);
- return readU32(&m_data[from_offset]);
+ incrOffset<u64>();
+ return *this;
}
-NetworkPacket& NetworkPacket::operator>>(u32& dst)
+NetworkPacket& NetworkPacket::operator<<(float src)
{
- dst = getU32(m_read_offset);
+ checkDataSize<float>();
- m_read_offset += sizeof(u32);
+ writeF1000(&m_data[m_read_offset], src);
+
+ incrOffset<float>();
return *this;
}
-u64 NetworkPacket::getU64(u32 from_offset)
+NetworkPacket& NetworkPacket::operator>>(bool& dst)
{
- assert(from_offset < m_datasize);
+ if (m_read_offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
- return readU64(&m_data[from_offset]);
+ dst = readU8(&m_data[m_read_offset]);
+
+ incrOffset<u8>();
+ return *this;
}
-NetworkPacket& NetworkPacket::operator>>(u64& dst)
+NetworkPacket& NetworkPacket::operator>>(u8& dst)
{
- dst = getU64(m_read_offset);
+ if (m_read_offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
- m_read_offset += sizeof(u64);
+ dst = readU8(&m_data[m_read_offset]);
+
+ incrOffset<u8>();
return *this;
}
-float NetworkPacket::getF1000(u32 from_offset)
+u8 NetworkPacket::getU8(u32 offset)
{
- assert(from_offset < m_datasize);
+ if (offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
- return readF1000(&m_data[from_offset]);
+ return readU8(&m_data[offset]);
+}
+
+u8* NetworkPacket::getU8Ptr(u32 from_offset)
+{
+ if (m_datasize == 0) {
+ return NULL;
+ }
+
+ if (from_offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
+
+ return (u8*)&m_data[from_offset];
+}
+
+NetworkPacket& NetworkPacket::operator>>(u16& dst)
+{
+ if (m_read_offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
+
+ dst = readU16(&m_data[m_read_offset]);
+
+ incrOffset<u16>();
+ return *this;
+}
+
+u16 NetworkPacket::getU16(u32 from_offset)
+{
+ if (from_offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
+
+ return readU16(&m_data[from_offset]);
+}
+
+NetworkPacket& NetworkPacket::operator>>(u32& dst)
+{
+ if (m_read_offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
+
+ dst = readU32(&m_data[m_read_offset]);
+
+ incrOffset<u32>();
+ return *this;
+}
+
+NetworkPacket& NetworkPacket::operator>>(u64& dst)
+{
+ if (m_read_offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
+
+ dst = readU64(&m_data[m_read_offset]);
+
+ incrOffset<u64>();
+ return *this;
}
NetworkPacket& NetworkPacket::operator>>(float& dst)
{
- dst = getF1000(m_read_offset);
+ if (m_read_offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
+
+ dst = readF1000(&m_data[m_read_offset]);
- m_read_offset += sizeof(float);
+ incrOffset<float>();
return *this;
}
NetworkPacket& NetworkPacket::operator>>(v2f& dst)
{
- assert(m_read_offset < m_datasize);
+ if (m_read_offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
dst = readV2F1000(&m_data[m_read_offset]);
- m_read_offset += sizeof(v2f);
+ incrOffset<v2f>();
return *this;
}
NetworkPacket& NetworkPacket::operator>>(v3f& dst)
{
- assert(m_read_offset < m_datasize);
+ if (m_read_offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
dst = readV3F1000(&m_data[m_read_offset]);
- m_read_offset += sizeof(v3f);
+ incrOffset<v3f>();
return *this;
}
-s16 NetworkPacket::getS16(u32 from_offset)
+NetworkPacket& NetworkPacket::operator>>(s16& dst)
{
- assert(from_offset < m_datasize);
+ if (m_read_offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
- return readS16(&m_data[from_offset]);
+ dst = readS16(&m_data[m_read_offset]);
+
+ incrOffset<s16>();
+ return *this;
}
-NetworkPacket& NetworkPacket::operator>>(s16& dst)
+NetworkPacket& NetworkPacket::operator<<(s16 src)
{
- dst = getS16(m_read_offset);
-
- m_read_offset += sizeof(s16);
+ *this << (u16) src;
return *this;
}
-s32 NetworkPacket::getS32(u32 from_offset)
+NetworkPacket& NetworkPacket::operator>>(s32& dst)
{
- assert(from_offset < m_datasize);
+ if (m_read_offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
+
+ dst = readS32(&m_data[m_read_offset]);
- return readS32(&m_data[from_offset]);
+ incrOffset<s32>();
+ return *this;
}
-NetworkPacket& NetworkPacket::operator>>(s32& dst)
+NetworkPacket& NetworkPacket::operator<<(s32 src)
{
- dst = getS32(m_read_offset);
+ *this << (u32) src;
+ return *this;
+}
- m_read_offset += sizeof(s32);
+NetworkPacket& NetworkPacket::operator>>(v3s16& dst)
+{
+ if (m_read_offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
+
+ dst = readV3S16(&m_data[m_read_offset]);
+
+ incrOffset<v3s16>();
return *this;
}
{
dst = readV2S32(&m_data[m_read_offset]);
- m_read_offset += sizeof(v2s32);
+ incrOffset<v2s32>();
return *this;
}
-v3s16 NetworkPacket::getV3S16(u32 from_offset)
+NetworkPacket& NetworkPacket::operator>>(v3s32& dst)
{
- assert(from_offset < m_datasize);
+ if (m_read_offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
- return readV3S16(&m_data[from_offset]);
+ dst = readV3S32(&m_data[m_read_offset]);
+
+ incrOffset<v3s32>();
+ return *this;
}
-NetworkPacket& NetworkPacket::operator>>(v3s16& dst)
+NetworkPacket& NetworkPacket::operator<<(v2f src)
+{
+ *this << (float) src.X;
+ *this << (float) src.Y;
+ return *this;
+}
+
+NetworkPacket& NetworkPacket::operator<<(v3f src)
+{
+ *this << (float) src.X;
+ *this << (float) src.Y;
+ *this << (float) src.Z;
+ return *this;
+}
+
+NetworkPacket& NetworkPacket::operator<<(v3s16 src)
{
- dst = getV3S16(m_read_offset);
+ *this << (s16) src.X;
+ *this << (s16) src.Y;
+ *this << (s16) src.Z;
+ return *this;
+}
- m_read_offset += sizeof(v3s16);
+NetworkPacket& NetworkPacket::operator<<(v2s32 src)
+{
+ *this << (s32) src.X;
+ *this << (s32) src.Y;
+ return *this;
+}
+
+NetworkPacket& NetworkPacket::operator<<(v3s32 src)
+{
+ *this << (s32) src.X;
+ *this << (s32) src.Y;
+ *this << (s32) src.Z;
return *this;
}
-v3s32 NetworkPacket::getV3S32(u32 from_offset)
+NetworkPacket& NetworkPacket::operator>>(video::SColor& dst)
{
- assert(from_offset < m_datasize);
+ if (m_read_offset >= m_datasize)
+ throw SerializationError("Malformed packet read");
- return readV3S32(&m_data[from_offset]);
+ dst = readARGB8(&m_data[m_read_offset]);
+
+ incrOffset<u32>();
+ return *this;
}
-NetworkPacket& NetworkPacket::operator>>(v3s32& dst)
+NetworkPacket& NetworkPacket::operator<<(video::SColor src)
{
- dst = getV3S32(m_read_offset);
+ checkDataSize<u32>();
- m_read_offset += sizeof(v3s32);
+ writeU32(&m_data[m_read_offset], src.color);
+
+ incrOffset<u32>();
return *this;
}
+
+SharedBuffer<u8> NetworkPacket::oldForgePacket()
+{
+ SharedBuffer<u8> sb(m_datasize + 2);
+ writeU16(&sb[0], m_command);
+
+ u8* datas = getU8Ptr(0);
+
+ if (datas != NULL)
+ memcpy(&sb[2], datas, m_datasize);
+ return sb;
+}
/*
Minetest
-Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
Copyright (C) 2015 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
This program is free software; you can redistribute it and/or modify
#ifndef NETWORKPACKET_HEADER
#define NETWORKPACKET_HEADER
+#include "util/pointer.h"
#include "util/numeric.h"
#include "networkprotocol.h"
public:
NetworkPacket(u8 *data, u32 datasize, u16 peer_id);
+ NetworkPacket(u16 command, u32 datasize, u16 peer_id);
+ NetworkPacket(u16 command, u32 datasize);
~NetworkPacket();
// Getters
u32 getSize() { return m_datasize; }
u16 getPeerId() { return m_peer_id; }
+ u16 getCommand() { return m_command; }
// Data extractors
char* getString(u32 from_offset);
+ void putRawString(const char* src, u32 len);
+
NetworkPacket& operator>>(std::string& dst);
+ NetworkPacket& operator<<(std::string src);
+
+ void putLongString(std::string src);
+
NetworkPacket& operator>>(std::wstring& dst);
+ NetworkPacket& operator<<(std::wstring src);
+
std::string readLongString();
char getChar(u32 offset);
NetworkPacket& operator>>(char& dst);
+ NetworkPacket& operator<<(char src);
NetworkPacket& operator>>(bool& dst);
+ NetworkPacket& operator<<(bool src);
u8 getU8(u32 offset);
+
NetworkPacket& operator>>(u8& dst);
+ NetworkPacket& operator<<(u8 src);
u8* getU8Ptr(u32 offset);
+
u16 getU16(u32 from_offset);
NetworkPacket& operator>>(u16& dst);
- u32 getU32(u32 from_offset);
+ NetworkPacket& operator<<(u16 src);
+
NetworkPacket& operator>>(u32& dst);
- u64 getU64(u32 from_offset);
+ NetworkPacket& operator<<(u32 src);
+
NetworkPacket& operator>>(u64& dst);
+ NetworkPacket& operator<<(u64 src);
- float getF1000(u32 offset);
NetworkPacket& operator>>(float& dst);
+ NetworkPacket& operator<<(float src);
+
NetworkPacket& operator>>(v2f& dst);
+ NetworkPacket& operator<<(v2f src);
+
NetworkPacket& operator>>(v3f& dst);
+ NetworkPacket& operator<<(v3f src);
- s16 getS16(u32 from_offset);
NetworkPacket& operator>>(s16& dst);
- s32 getS32(u32 from_offset);
+ NetworkPacket& operator<<(s16 src);
+
NetworkPacket& operator>>(s32& dst);
+ NetworkPacket& operator<<(s32 src);
NetworkPacket& operator>>(v2s32& dst);
+ NetworkPacket& operator<<(v2s32 src);
- v3s16 getV3S16(u32 from_offset);
NetworkPacket& operator>>(v3s16& dst);
+ NetworkPacket& operator<<(v3s16 src);
- v3s32 getV3S32(u32 from_offset);
NetworkPacket& operator>>(v3s32& dst);
+ NetworkPacket& operator<<(v3s32 src);
-protected:
- u8 *m_data;
+ NetworkPacket& operator>>(video::SColor& dst);
+ NetworkPacket& operator<<(video::SColor src);
+
+ // Temp, we remove SharedBuffer when migration finished
+ SharedBuffer<u8> oldForgePacket();
+private:
+ template<typename T> void checkDataSize()
+ {
+ if (m_read_offset + sizeof(T) > m_datasize) {
+ m_datasize += sizeof(T);
+ m_data.resize(m_datasize);
+ }
+ }
+
+ template<typename T> void incrOffset()
+ {
+ m_read_offset += sizeof(T);
+ }
+
+ std::vector<u8> m_data;
u32 m_datasize;
u32 m_read_offset;
-private:
+ u16 m_command;
u16 m_peer_id;
};
--- /dev/null
+/*
+Minetest
+Copyright (C) 2015 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "client.h"
+
+#include "base64.h"
+#include "clientmedia.h"
+#include "log.h"
+#include "map.h"
+#include "mapsector.h"
+#include "nodedef.h"
+#include "serialization.h"
+#include "server.h"
+#include "strfnd.h"
+#include "network/clientopcodes.h"
+#include "util/serialize.h"
+
+void Client::handleCommand_Deprecated(NetworkPacket* pkt)
+{
+ infostream << "Got deprecated command "
+ << toClientCommandTable[pkt->getCommand()].name << " from peer "
+ << pkt->getPeerId() << "!" << std::endl;
+}
+
+void Client::handleCommand_Init(NetworkPacket* pkt)
+{
+ if (pkt->getSize() < 1)
+ return;
+
+ u8 deployed;
+ *pkt >> deployed;
+
+ infostream << "Client: TOCLIENT_INIT received with "
+ "deployed=" << ((int)deployed & 0xff) << std::endl;
+
+ if (!ser_ver_supported(deployed)) {
+ infostream << "Client: TOCLIENT_INIT: Server sent "
+ << "unsupported ser_fmt_ver"<< std::endl;
+ return;
+ }
+
+ m_server_ser_ver = deployed;
+
+ // Get player position
+ v3s16 playerpos_s16(0, BS * 2 + BS * 20, 0);
+ if (pkt->getSize() >= 1 + 6) {
+ *pkt >> playerpos_s16;
+ }
+ v3f playerpos_f = intToFloat(playerpos_s16, BS) - v3f(0, BS / 2, 0);
+
+
+ // Set player position
+ Player *player = m_env.getLocalPlayer();
+ assert(player != NULL);
+ player->setPosition(playerpos_f);
+
+ if (pkt->getSize() >= 1 + 6 + 8) {
+ // Get map seed
+ *pkt >> m_map_seed;
+ infostream << "Client: received map seed: " << m_map_seed << std::endl;
+ }
+
+ if (pkt->getSize() >= 1 + 6 + 8 + 4) {
+ *pkt >> m_recommended_send_interval;
+ infostream << "Client: received recommended send interval "
+ << m_recommended_send_interval<<std::endl;
+ }
+
+ // Reply to server
+ NetworkPacket* resp_pkt = new NetworkPacket(TOSERVER_INIT2, 0);
+ Send(resp_pkt);
+
+ m_state = LC_Init;
+}
+
+void Client::handleCommand_AccessDenied(NetworkPacket* pkt)
+{
+ // The server didn't like our password. Note, this needs
+ // to be processed even if the serialisation format has
+ // not been agreed yet, the same as TOCLIENT_INIT.
+ m_access_denied = true;
+ m_access_denied_reason = L"Unknown";
+ if (pkt->getSize() >= 2) {
+ *pkt >> m_access_denied_reason;
+ }
+}
+
+void Client::handleCommand_RemoveNode(NetworkPacket* pkt)
+{
+ if (pkt->getSize() < 6)
+ return;
+
+ v3s16 p;
+ *pkt >> p;
+ removeNode(p);
+}
+
+void Client::handleCommand_AddNode(NetworkPacket* pkt)
+{
+ if (pkt->getSize() < 6 + MapNode::serializedLength(m_server_ser_ver))
+ return;
+
+ v3s16 p;
+ *pkt >> p;
+
+ MapNode n;
+ n.deSerialize(pkt->getU8Ptr(6), m_server_ser_ver);
+
+ bool remove_metadata = true;
+ u32 index = 6 + MapNode::serializedLength(m_server_ser_ver);
+ if ((pkt->getSize() >= index + 1) && pkt->getU8(index)) {
+ remove_metadata = false;
+ }
+
+ addNode(p, n, remove_metadata);
+}
+void Client::handleCommand_BlockData(NetworkPacket* pkt)
+{
+ // Ignore too small packet
+ if (pkt->getSize() < 6)
+ return;
+
+ v3s16 p;
+ *pkt >> p;
+
+ std::string datastring(pkt->getString(6), pkt->getSize() - 6);
+ std::istringstream istr(datastring, std::ios_base::binary);
+
+ MapSector *sector;
+ MapBlock *block;
+
+ v2s16 p2d(p.X, p.Z);
+ sector = m_env.getMap().emergeSector(p2d);
+
+ assert(sector->getPos() == p2d);
+
+ block = sector->getBlockNoCreateNoEx(p.Y);
+ if (block) {
+ /*
+ Update an existing block
+ */
+ block->deSerialize(istr, m_server_ser_ver, false);
+ block->deSerializeNetworkSpecific(istr);
+ }
+ else {
+ /*
+ Create a new block
+ */
+ block = new MapBlock(&m_env.getMap(), p, this);
+ block->deSerialize(istr, m_server_ser_ver, false);
+ block->deSerializeNetworkSpecific(istr);
+ sector->insertBlock(block);
+ }
+
+ if (localdb != NULL) {
+ ((ServerMap&) localserver->getMap()).saveBlock(block, localdb);
+ }
+
+ /*
+ Add it to mesh update queue and set it to be acknowledged after update.
+ */
+ addUpdateMeshTaskWithEdge(p, true);
+}
+
+void Client::handleCommand_Inventory(NetworkPacket* pkt)
+{
+ if (pkt->getSize() < 1)
+ return;
+
+ std::string datastring(pkt->getString(0), pkt->getSize());
+ std::istringstream is(datastring, std::ios_base::binary);
+
+ Player *player = m_env.getLocalPlayer();
+ assert(player != NULL);
+
+ player->inventory.deSerialize(is);
+
+ m_inventory_updated = true;
+
+ delete m_inventory_from_server;
+ m_inventory_from_server = new Inventory(player->inventory);
+ m_inventory_from_server_age = 0.0;
+}
+
+void Client::handleCommand_TimeOfDay(NetworkPacket* pkt)
+{
+ if (pkt->getSize() < 2)
+ return;
+
+ u16 time_of_day;
+
+ *pkt >> time_of_day;
+
+ time_of_day = time_of_day % 24000;
+ float time_speed = 0;
+
+ if (pkt->getSize() >= 2 + 4) {
+ *pkt >> time_speed;
+ }
+ else {
+ // Old message; try to approximate speed of time by ourselves
+ float time_of_day_f = (float)time_of_day / 24000.0;
+ float tod_diff_f = 0;
+
+ if (time_of_day_f < 0.2 && m_last_time_of_day_f > 0.8)
+ tod_diff_f = time_of_day_f - m_last_time_of_day_f + 1.0;
+ else
+ tod_diff_f = time_of_day_f - m_last_time_of_day_f;
+
+ m_last_time_of_day_f = time_of_day_f;
+ float time_diff = m_time_of_day_update_timer;
+ m_time_of_day_update_timer = 0;
+
+ if (m_time_of_day_set) {
+ time_speed = (3600.0 * 24.0) * tod_diff_f / time_diff;
+ infostream << "Client: Measured time_of_day speed (old format): "
+ << time_speed << " tod_diff_f=" << tod_diff_f
+ << " time_diff=" << time_diff << std::endl;
+ }
+ }
+
+ // Update environment
+ m_env.setTimeOfDay(time_of_day);
+ m_env.setTimeOfDaySpeed(time_speed);
+ m_time_of_day_set = true;
+
+ u32 dr = m_env.getDayNightRatio();
+ infostream << "Client: time_of_day=" << time_of_day
+ << " time_speed=" << time_speed
+ << " dr=" << dr << std::endl;
+}
+
+void Client::handleCommand_ChatMessage(NetworkPacket* pkt)
+{
+ /*
+ u16 command
+ u16 length
+ wstring message
+ */
+ u16 len, read_wchar;
+
+ *pkt >> len;
+
+ std::wstring message;
+ for (u32 i = 0; i < len; i++) {
+ *pkt >> read_wchar;
+ message += (wchar_t)read_wchar;
+ }
+
+ m_chat_queue.push_back(message);
+}
+
+void Client::handleCommand_ActiveObjectRemoveAdd(NetworkPacket* pkt)
+{
+ /*
+ u16 command
+ u16 count of removed objects
+ for all removed objects {
+ u16 id
+ }
+ u16 count of added objects
+ for all added objects {
+ u16 id
+ u8 type
+ u32 initialization data length
+ string initialization data
+ }
+ */
+
+ // Read removed objects
+ u8 type;
+ u16 removed_count, added_count, id;
+
+ *pkt >> removed_count;
+
+ for (u16 i = 0; i < removed_count; i++) {
+ *pkt >> id;
+ m_env.removeActiveObject(id);
+ }
+
+ // Read added objects
+ *pkt >> added_count;
+
+ for (u16 i = 0; i < added_count; i++) {
+ *pkt >> id >> type;
+ m_env.addActiveObject(id, type, pkt->readLongString());
+ }
+}
+
+void Client::handleCommand_ActiveObjectMessages(NetworkPacket* pkt)
+{
+ /*
+ u16 command
+ for all objects
+ {
+ u16 id
+ u16 message length
+ string message
+ }
+ */
+ char buf[6];
+ // Get all data except the command number
+ std::string datastring(pkt->getString(0), pkt->getSize());
+ // Throw them in an istringstream
+ std::istringstream is(datastring, std::ios_base::binary);
+
+ while(is.eof() == false) {
+ is.read(buf, 2);
+ u16 id = readU16((u8*)buf);
+ if (is.eof())
+ break;
+ is.read(buf, 2);
+ size_t message_size = readU16((u8*)buf);
+ std::string message;
+ message.reserve(message_size);
+ for (u32 i = 0; i < message_size; i++) {
+ is.read(buf, 1);
+ message.append(buf, 1);
+ }
+ // Pass on to the environment
+ m_env.processActiveObjectMessage(id, message);
+ }
+}
+
+void Client::handleCommand_Movement(NetworkPacket* pkt)
+{
+ Player *player = m_env.getLocalPlayer();
+ assert(player != NULL);
+
+ float mad, maa, maf, msw, mscr, msf, mscl, msj, lf, lfs, ls, g;
+
+ *pkt >> mad >> maa >> maf >> msw >> mscr >> msf >> mscl >> msj
+ >> lf >> lfs >> ls >> g;
+
+ player->movement_acceleration_default = mad * BS;
+ player->movement_acceleration_air = maa * BS;
+ player->movement_acceleration_fast = maf * BS;
+ player->movement_speed_walk = msw * BS;
+ player->movement_speed_crouch = mscr * BS;
+ player->movement_speed_fast = msf * BS;
+ player->movement_speed_climb = mscl * BS;
+ player->movement_speed_jump = msj * BS;
+ player->movement_liquid_fluidity = lf * BS;
+ player->movement_liquid_fluidity_smooth = lfs * BS;
+ player->movement_liquid_sink = ls * BS;
+ player->movement_gravity = g * BS;
+}
+
+void Client::handleCommand_HP(NetworkPacket* pkt)
+{
+
+ Player *player = m_env.getLocalPlayer();
+ assert(player != NULL);
+
+ u8 oldhp = player->hp;
+
+ u8 hp;
+ *pkt >> hp;
+
+ player->hp = hp;
+
+ if (hp < oldhp) {
+ // Add to ClientEvent queue
+ ClientEvent event;
+ event.type = CE_PLAYER_DAMAGE;
+ event.player_damage.amount = oldhp - hp;
+ m_client_event_queue.push_back(event);
+ }
+}
+
+void Client::handleCommand_Breath(NetworkPacket* pkt)
+{
+ Player *player = m_env.getLocalPlayer();
+ assert(player != NULL);
+
+ u16 breath;
+
+ *pkt >> breath;
+
+ player->setBreath(breath);
+}
+
+void Client::handleCommand_MovePlayer(NetworkPacket* pkt)
+{
+ Player *player = m_env.getLocalPlayer();
+ assert(player != NULL);
+
+ v3f pos;
+ f32 pitch, yaw;
+
+ *pkt >> pos >> pitch >> yaw;
+
+ player->setPosition(pos);
+
+ infostream << "Client got TOCLIENT_MOVE_PLAYER"
+ << " pos=(" << pos.X << "," << pos.Y << "," << pos.Z << ")"
+ << " pitch=" << pitch
+ << " yaw=" << yaw
+ << std::endl;
+
+ /*
+ Add to ClientEvent queue.
+ This has to be sent to the main program because otherwise
+ it would just force the pitch and yaw values to whatever
+ the camera points to.
+ */
+ ClientEvent event;
+ event.type = CE_PLAYER_FORCE_MOVE;
+ event.player_force_move.pitch = pitch;
+ event.player_force_move.yaw = yaw;
+ m_client_event_queue.push_back(event);
+
+ // Ignore damage for a few seconds, so that the player doesn't
+ // get damage from falling on ground
+ m_ignore_damage_timer = 3.0;
+}
+
+void Client::handleCommand_PlayerItem(NetworkPacket* pkt)
+{
+ infostream << "Client: WARNING: Ignoring TOCLIENT_PLAYERITEM" << std::endl;
+}
+
+void Client::handleCommand_DeathScreen(NetworkPacket* pkt)
+{
+ bool set_camera_point_target;
+ v3f camera_point_target;
+
+ *pkt >> set_camera_point_target;
+ *pkt >> camera_point_target;
+
+ ClientEvent event;
+ event.type = CE_DEATHSCREEN;
+ event.deathscreen.set_camera_point_target = set_camera_point_target;
+ event.deathscreen.camera_point_target_x = camera_point_target.X;
+ event.deathscreen.camera_point_target_y = camera_point_target.Y;
+ event.deathscreen.camera_point_target_z = camera_point_target.Z;
+ m_client_event_queue.push_back(event);
+}
+
+void Client::handleCommand_AnnounceMedia(NetworkPacket* pkt)
+{
+ u16 num_files;
+
+ *pkt >> num_files;
+
+ infostream << "Client: Received media announcement: packet size: "
+ << pkt->getSize() << std::endl;
+
+ if (m_media_downloader == NULL ||
+ m_media_downloader->isStarted()) {
+ const char *problem = m_media_downloader ?
+ "we already saw another announcement" :
+ "all media has been received already";
+ errorstream << "Client: Received media announcement but "
+ << problem << "! "
+ << " files=" << num_files
+ << " size=" << pkt->getSize() << std::endl;
+ return;
+ }
+
+ // Mesh update thread must be stopped while
+ // updating content definitions
+ assert(!m_mesh_update_thread.IsRunning());
+
+ for (u16 i = 0; i < num_files; i++) {
+ std::string name, sha1_base64;
+
+ *pkt >> name >> sha1_base64;
+
+ std::string sha1_raw = base64_decode(sha1_base64);
+ m_media_downloader->addFile(name, sha1_raw);
+ }
+
+ std::vector<std::string> remote_media;
+ try {
+ std::string str;
+
+ *pkt >> str;
+
+ Strfnd sf(str);
+ while(!sf.atend()) {
+ std::string baseurl = trim(sf.next(","));
+ if (baseurl != "")
+ m_media_downloader->addRemoteServer(baseurl);
+ }
+ }
+ catch(SerializationError& e) {
+ // not supported by server or turned off
+ }
+
+ m_media_downloader->step(this);
+}
+
+void Client::handleCommand_Media(NetworkPacket* pkt)
+{
+ /*
+ u16 command
+ u16 total number of file bunches
+ u16 index of this bunch
+ u32 number of files in this bunch
+ for each file {
+ u16 length of name
+ string name
+ u32 length of data
+ data
+ }
+ */
+ u16 num_bunches;
+ u16 bunch_i;
+ u32 num_files;
+
+ *pkt >> num_bunches >> bunch_i >> num_files;
+
+ infostream << "Client: Received files: bunch " << bunch_i << "/"
+ << num_bunches << " files=" << num_files
+ << " size=" << pkt->getSize() << std::endl;
+
+ if (num_files == 0)
+ return;
+
+ if (m_media_downloader == NULL ||
+ !m_media_downloader->isStarted()) {
+ const char *problem = m_media_downloader ?
+ "media has not been requested" :
+ "all media has been received already";
+ errorstream << "Client: Received media but "
+ << problem << "! "
+ << " bunch " << bunch_i << "/" << num_bunches
+ << " files=" << num_files
+ << " size=" << pkt->getSize() << std::endl;
+ return;
+ }
+
+ // Mesh update thread must be stopped while
+ // updating content definitions
+ assert(!m_mesh_update_thread.IsRunning());
+
+ for (u32 i=0; i < num_files; i++) {
+ std::string name;
+
+ *pkt >> name;
+
+ std::string data = pkt->readLongString();
+
+ m_media_downloader->conventionalTransferDone(
+ name, data, this);
+ }
+}
+
+void Client::handleCommand_ToolDef(NetworkPacket* pkt)
+{
+ infostream << "Client: WARNING: Ignoring TOCLIENT_TOOLDEF" << std::endl;
+}
+
+void Client::handleCommand_NodeDef(NetworkPacket* pkt)
+{
+ infostream << "Client: Received node definitions: packet size: "
+ << pkt->getSize() << std::endl;
+
+ // Mesh update thread must be stopped while
+ // updating content definitions
+ assert(!m_mesh_update_thread.IsRunning());
+
+ // Decompress node definitions
+ std::string datastring(pkt->getString(0), pkt->getSize());
+ std::istringstream is(datastring, std::ios_base::binary);
+ std::istringstream tmp_is(deSerializeLongString(is), std::ios::binary);
+ std::ostringstream tmp_os;
+ decompressZlib(tmp_is, tmp_os);
+
+ // Deserialize node definitions
+ std::istringstream tmp_is2(tmp_os.str());
+ m_nodedef->deSerialize(tmp_is2);
+ m_nodedef_received = true;
+}
+
+void Client::handleCommand_CraftItemDef(NetworkPacket* pkt)
+{
+ infostream << "Client: WARNING: Ignoring TOCLIENT_CRAFTITEMDEF" << std::endl;
+}
+
+void Client::handleCommand_ItemDef(NetworkPacket* pkt)
+{
+ infostream << "Client: Received item definitions: packet size: "
+ << pkt->getSize() << std::endl;
+
+ // Mesh update thread must be stopped while
+ // updating content definitions
+ assert(!m_mesh_update_thread.IsRunning());
+
+ // Decompress item definitions
+ std::string datastring(pkt->getString(0), pkt->getSize());
+ std::istringstream is(datastring, std::ios_base::binary);
+ std::istringstream tmp_is(deSerializeLongString(is), std::ios::binary);
+ std::ostringstream tmp_os;
+ decompressZlib(tmp_is, tmp_os);
+
+ // Deserialize node definitions
+ std::istringstream tmp_is2(tmp_os.str());
+ m_itemdef->deSerialize(tmp_is2);
+ m_itemdef_received = true;
+}
+
+void Client::handleCommand_PlaySound(NetworkPacket* pkt)
+{
+ s32 server_id;
+ std::string name;
+ float gain;
+ u8 type; // 0=local, 1=positional, 2=object
+ v3f pos;
+ u16 object_id;
+ bool loop;
+
+ *pkt >> server_id >> name >> gain >> type >> pos >> object_id >> loop;
+
+ // Start playing
+ int client_id = -1;
+ switch(type) {
+ case 0: // local
+ client_id = m_sound->playSound(name, loop, gain);
+ break;
+ case 1: // positional
+ client_id = m_sound->playSoundAt(name, loop, gain, pos);
+ break;
+ case 2:
+ { // object
+ ClientActiveObject *cao = m_env.getActiveObject(object_id);
+ if (cao)
+ pos = cao->getPosition();
+ client_id = m_sound->playSoundAt(name, loop, gain, pos);
+ // TODO: Set up sound to move with object
+ break;
+ }
+ default:
+ break;
+ }
+
+ if (client_id != -1) {
+ m_sounds_server_to_client[server_id] = client_id;
+ m_sounds_client_to_server[client_id] = server_id;
+ if (object_id != 0)
+ m_sounds_to_objects[client_id] = object_id;
+ }
+}
+
+void Client::handleCommand_StopSound(NetworkPacket* pkt)
+{
+ s32 server_id;
+
+ *pkt >> server_id;
+
+ std::map<s32, int>::iterator i =
+ m_sounds_server_to_client.find(server_id);
+
+ if (i != m_sounds_server_to_client.end()) {
+ int client_id = i->second;
+ m_sound->stopSound(client_id);
+ }
+}
+
+void Client::handleCommand_Privileges(NetworkPacket* pkt)
+{
+ m_privileges.clear();
+ infostream << "Client: Privileges updated: ";
+ u16 num_privileges;
+
+ *pkt >> num_privileges;
+
+ for (u16 i = 0; i < num_privileges; i++) {
+ std::string priv;
+
+ *pkt >> priv;
+
+ m_privileges.insert(priv);
+ infostream << priv << " ";
+ }
+ infostream << std::endl;
+}
+
+void Client::handleCommand_InventoryFormSpec(NetworkPacket* pkt)
+{
+ Player *player = m_env.getLocalPlayer();
+ assert(player != NULL);
+
+ // Store formspec in LocalPlayer
+ player->inventory_formspec = pkt->readLongString();
+}
+
+void Client::handleCommand_DetachedInventory(NetworkPacket* pkt)
+{
+ std::string datastring(pkt->getString(0), pkt->getSize());
+ std::istringstream is(datastring, std::ios_base::binary);
+
+ std::string name = deSerializeString(is);
+
+ infostream << "Client: Detached inventory update: \"" << name
+ << "\"" << std::endl;
+
+ Inventory *inv = NULL;
+ if (m_detached_inventories.count(name) > 0)
+ inv = m_detached_inventories[name];
+ else {
+ inv = new Inventory(m_itemdef);
+ m_detached_inventories[name] = inv;
+ }
+ inv->deSerialize(is);
+}
+
+void Client::handleCommand_ShowFormSpec(NetworkPacket* pkt)
+{
+ std::string formspec = pkt->readLongString();
+ std::string formname;
+
+ *pkt >> formname;
+
+ ClientEvent event;
+ event.type = CE_SHOW_FORMSPEC;
+ // pointer is required as event is a struct only!
+ // adding a std:string to a struct isn't possible
+ event.show_formspec.formspec = new std::string(formspec);
+ event.show_formspec.formname = new std::string(formname);
+ m_client_event_queue.push_back(event);
+}
+
+void Client::handleCommand_SpawnParticle(NetworkPacket* pkt)
+{
+ std::string datastring(pkt->getString(0), pkt->getSize());
+ std::istringstream is(datastring, std::ios_base::binary);
+
+ v3f pos = readV3F1000(is);
+ v3f vel = readV3F1000(is);
+ v3f acc = readV3F1000(is);
+ float expirationtime = readF1000(is);
+ float size = readF1000(is);
+ bool collisiondetection = readU8(is);
+ std::string texture = deSerializeLongString(is);
+ bool vertical = false;
+ try {
+ vertical = readU8(is);
+ } catch (...) {}
+
+ ClientEvent event;
+ event.type = CE_SPAWN_PARTICLE;
+ event.spawn_particle.pos = new v3f (pos);
+ event.spawn_particle.vel = new v3f (vel);
+ event.spawn_particle.acc = new v3f (acc);
+ event.spawn_particle.expirationtime = expirationtime;
+ event.spawn_particle.size = size;
+ event.spawn_particle.collisiondetection = collisiondetection;
+ event.spawn_particle.vertical = vertical;
+ event.spawn_particle.texture = new std::string(texture);
+
+ m_client_event_queue.push_back(event);
+}
+
+void Client::handleCommand_AddParticleSpawner(NetworkPacket* pkt)
+{
+ u16 amount;
+ float spawntime;
+ v3f minpos;
+ v3f maxpos;
+ v3f minvel;
+ v3f maxvel;
+ v3f minacc;
+ v3f maxacc;
+ float minexptime;
+ float maxexptime;
+ float minsize;
+ float maxsize;
+ bool collisiondetection;
+ u32 id;
+
+ *pkt >> amount >> spawntime >> minpos >> maxpos >> minvel >> maxvel
+ >> minacc >> maxacc >> minexptime >> maxexptime >> minsize
+ >> maxsize >> collisiondetection;
+
+ std::string texture = pkt->readLongString();
+
+ *pkt >> id;
+
+ bool vertical = false;
+ try {
+ *pkt >> vertical;
+ } catch (...) {}
+
+ ClientEvent event;
+ event.type = CE_ADD_PARTICLESPAWNER;
+ event.add_particlespawner.amount = amount;
+ event.add_particlespawner.spawntime = spawntime;
+ event.add_particlespawner.minpos = new v3f (minpos);
+ event.add_particlespawner.maxpos = new v3f (maxpos);
+ event.add_particlespawner.minvel = new v3f (minvel);
+ event.add_particlespawner.maxvel = new v3f (maxvel);
+ event.add_particlespawner.minacc = new v3f (minacc);
+ event.add_particlespawner.maxacc = new v3f (maxacc);
+ event.add_particlespawner.minexptime = minexptime;
+ event.add_particlespawner.maxexptime = maxexptime;
+ event.add_particlespawner.minsize = minsize;
+ event.add_particlespawner.maxsize = maxsize;
+ event.add_particlespawner.collisiondetection = collisiondetection;
+ event.add_particlespawner.vertical = vertical;
+ event.add_particlespawner.texture = new std::string(texture);
+ event.add_particlespawner.id = id;
+
+ m_client_event_queue.push_back(event);
+}
+
+
+void Client::handleCommand_DeleteParticleSpawner(NetworkPacket* pkt)
+{
+ u16 id;
+
+ *pkt >> id;
+
+ ClientEvent event;
+ event.type = CE_DELETE_PARTICLESPAWNER;
+ event.delete_particlespawner.id = (u32) id;
+
+ m_client_event_queue.push_back(event);
+}
+
+void Client::handleCommand_HudAdd(NetworkPacket* pkt)
+{
+ std::string datastring(pkt->getString(0), pkt->getSize());
+ std::istringstream is(datastring, std::ios_base::binary);
+
+ u32 id;
+ u8 type;
+ v2f pos;
+ std::string name;
+ v2f scale;
+ std::string text;
+ u32 number;
+ u32 item;
+ u32 dir;
+ v2f align;
+ v2f offset;
+ v3f world_pos;
+ v2s32 size;
+
+ *pkt >> id >> type >> pos >> name >> scale >> text >> number >> item
+ >> dir >> align >> offset;
+ try {
+ *pkt >> world_pos;
+ }
+ catch(SerializationError &e) {};
+
+ try {
+ *pkt >> size;
+ } catch(SerializationError &e) {};
+
+ ClientEvent event;
+ event.type = CE_HUDADD;
+ event.hudadd.id = id;
+ event.hudadd.type = type;
+ event.hudadd.pos = new v2f(pos);
+ event.hudadd.name = new std::string(name);
+ event.hudadd.scale = new v2f(scale);
+ event.hudadd.text = new std::string(text);
+ event.hudadd.number = number;
+ event.hudadd.item = item;
+ event.hudadd.dir = dir;
+ event.hudadd.align = new v2f(align);
+ event.hudadd.offset = new v2f(offset);
+ event.hudadd.world_pos = new v3f(world_pos);
+ event.hudadd.size = new v2s32(size);
+ m_client_event_queue.push_back(event);
+}
+
+void Client::handleCommand_HudRemove(NetworkPacket* pkt)
+{
+ u32 id;
+
+ *pkt >> id;
+
+ ClientEvent event;
+ event.type = CE_HUDRM;
+ event.hudrm.id = id;
+ m_client_event_queue.push_back(event);
+}
+
+void Client::handleCommand_HudChange(NetworkPacket* pkt)
+{
+ std::string sdata;
+ v2f v2fdata;
+ v3f v3fdata;
+ u32 intdata = 0;
+ v2s32 v2s32data;
+ u32 id;
+ u8 stat;
+
+ *pkt >> id >> stat;
+
+ if (stat == HUD_STAT_POS || stat == HUD_STAT_SCALE ||
+ stat == HUD_STAT_ALIGN || stat == HUD_STAT_OFFSET)
+ *pkt >> v2fdata;
+ else if (stat == HUD_STAT_NAME || stat == HUD_STAT_TEXT)
+ *pkt >> sdata;
+ else if (stat == HUD_STAT_WORLD_POS)
+ *pkt >> v3fdata;
+ else if (stat == HUD_STAT_SIZE )
+ *pkt >> v2s32data;
+ else
+ *pkt >> intdata;
+
+ ClientEvent event;
+ event.type = CE_HUDCHANGE;
+ event.hudchange.id = id;
+ event.hudchange.stat = (HudElementStat)stat;
+ event.hudchange.v2fdata = new v2f(v2fdata);
+ event.hudchange.v3fdata = new v3f(v3fdata);
+ event.hudchange.sdata = new std::string(sdata);
+ event.hudchange.data = intdata;
+ event.hudchange.v2s32data = new v2s32(v2s32data);
+ m_client_event_queue.push_back(event);
+}
+
+void Client::handleCommand_HudSetFlags(NetworkPacket* pkt)
+{
+ u32 flags, mask;
+
+ *pkt >> flags >> mask;
+
+ Player *player = m_env.getLocalPlayer();
+ assert(player != NULL);
+
+ player->hud_flags &= ~mask;
+ player->hud_flags |= flags;
+}
+
+void Client::handleCommand_HudSetParam(NetworkPacket* pkt)
+{
+ u16 param; std::string value;
+
+ *pkt >> param >> value;
+
+ Player *player = m_env.getLocalPlayer();
+ assert(player != NULL);
+
+ if (param == HUD_PARAM_HOTBAR_ITEMCOUNT && value.size() == 4) {
+ s32 hotbar_itemcount = readS32((u8*) value.c_str());
+ if (hotbar_itemcount > 0 && hotbar_itemcount <= HUD_HOTBAR_ITEMCOUNT_MAX)
+ player->hud_hotbar_itemcount = hotbar_itemcount;
+ }
+ else if (param == HUD_PARAM_HOTBAR_IMAGE) {
+ ((LocalPlayer *) player)->hotbar_image = value;
+ }
+ else if (param == HUD_PARAM_HOTBAR_SELECTED_IMAGE) {
+ ((LocalPlayer *) player)->hotbar_selected_image = value;
+ }
+}
+
+void Client::handleCommand_HudSetSky(NetworkPacket* pkt)
+{
+ std::string datastring(pkt->getString(0), pkt->getSize());
+ std::istringstream is(datastring, std::ios_base::binary);
+
+ video::SColor *bgcolor = new video::SColor(readARGB8(is));
+ std::string *type = new std::string(deSerializeString(is));
+ u16 count = readU16(is);
+ std::vector<std::string> *params = new std::vector<std::string>;
+
+ for (size_t i = 0; i < count; i++)
+ params->push_back(deSerializeString(is));
+
+ ClientEvent event;
+ event.type = CE_SET_SKY;
+ event.set_sky.bgcolor = bgcolor;
+ event.set_sky.type = type;
+ event.set_sky.params = params;
+ m_client_event_queue.push_back(event);
+}
+
+void Client::handleCommand_OverrideDayNightRatio(NetworkPacket* pkt)
+{
+ bool do_override;
+ u16 day_night_ratio_u;
+
+ *pkt >> do_override >> day_night_ratio_u;
+
+ float day_night_ratio_f = (float)day_night_ratio_u / 65536;
+
+ ClientEvent event;
+ event.type = CE_OVERRIDE_DAY_NIGHT_RATIO;
+ event.override_day_night_ratio.do_override = do_override;
+ event.override_day_night_ratio.ratio_f = day_night_ratio_f;
+ m_client_event_queue.push_back(event);
+}
+
+void Client::handleCommand_LocalPlayerAnimations(NetworkPacket* pkt)
+{
+ LocalPlayer *player = m_env.getLocalPlayer();
+ assert(player != NULL);
+
+ *pkt >> player->local_animations[0];
+ *pkt >> player->local_animations[1];
+ *pkt >> player->local_animations[2];
+ *pkt >> player->local_animations[3];
+ *pkt >> player->local_animation_speed;
+}
+
+void Client::handleCommand_EyeOffset(NetworkPacket* pkt)
+{
+ LocalPlayer *player = m_env.getLocalPlayer();
+ assert(player != NULL);
+
+ *pkt >> player->eye_offset_first >> player->eye_offset_third;
+}
--- /dev/null
+/*
+Minetest
+Copyright (C) 2015 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "server.h"
+#include "log.h"
+
+#include "base64.h"
+#include "content_abm.h"
+#include "content_sao.h"
+#include "emerge.h"
+#include "main.h"
+#include "nodedef.h"
+#include "player.h"
+#include "rollback_interface.h"
+#include "scripting_game.h"
+#include "settings.h"
+#include "tool.h"
+#include "version.h"
+#include "network/networkprotocol.h"
+#include "network/serveropcodes.h"
+#include "util/pointedthing.h"
+#include "util/serialize.h"
+
+void Server::handleCommand_Deprecated(NetworkPacket* pkt)
+{
+ infostream << "Server: " << toServerCommandTable[pkt->getCommand()].name
+ << " not supported anymore" << std::endl;
+}
+
+void Server::handleCommand_Init(NetworkPacket* pkt)
+{
+ // [0] u8 SER_FMT_VER_HIGHEST_READ
+ // [1] u8[20] player_name
+ // [21] u8[28] password <--- can be sent without this, from old versions
+
+ if (pkt->getSize() < 1+PLAYERNAME_SIZE)
+ return;
+
+ RemoteClient* client = getClient(pkt->getPeerId(), CS_Created);
+
+ std::string addr_s;
+ try {
+ Address address = getPeerAddress(pkt->getPeerId());
+ addr_s = address.serializeString();
+ }
+ catch (con::PeerNotFoundException &e) {
+ /*
+ * no peer for this packet found
+ * most common reason is peer timeout, e.g. peer didn't
+ * respond for some time, your server was overloaded or
+ * things like that.
+ */
+ infostream << "Server::ProcessData(): Cancelling: peer "
+ << pkt->getPeerId() << " not found" << std::endl;
+ return;
+ }
+
+ // If net_proto_version is set, this client has already been handled
+ if (client->getState() > CS_Created) {
+ verbosestream << "Server: Ignoring multiple TOSERVER_INITs from "
+ << addr_s << " (peer_id=" << pkt->getPeerId() << ")" << std::endl;
+ return;
+ }
+
+ verbosestream << "Server: Got TOSERVER_INIT from " << addr_s << " (peer_id="
+ << pkt->getPeerId() << ")" << std::endl;
+
+ // Do not allow multiple players in simple singleplayer mode.
+ // This isn't a perfect way to do it, but will suffice for now
+ if (m_simple_singleplayer_mode && m_clients.getClientIDs().size() > 1) {
+ infostream << "Server: Not allowing another client (" << addr_s
+ << ") to connect in simple singleplayer mode" << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Running in simple singleplayer mode.");
+ return;
+ }
+
+ // First byte after command is maximum supported
+ // serialization version
+ u8 client_max;
+
+ *pkt >> client_max;
+
+ u8 our_max = SER_FMT_VER_HIGHEST_READ;
+ // Use the highest version supported by both
+ int deployed = std::min(client_max, our_max);
+ // If it's lower than the lowest supported, give up.
+ if (deployed < SER_FMT_VER_LOWEST)
+ deployed = SER_FMT_VER_INVALID;
+
+ if (deployed == SER_FMT_VER_INVALID) {
+ actionstream << "Server: A mismatched client tried to connect from "
+ << addr_s << std::endl;
+ infostream<<"Server: Cannot negotiate serialization version with "
+ << addr_s << std::endl;
+ DenyAccess(pkt->getPeerId(), std::wstring(
+ L"Your client's version is not supported.\n"
+ L"Server version is ")
+ + narrow_to_wide(minetest_version_simple) + L"."
+ );
+ return;
+ }
+
+ client->setPendingSerializationVersion(deployed);
+
+ /*
+ Read and check network protocol version
+ */
+
+ u16 min_net_proto_version = 0;
+ if (pkt->getSize() >= 1 + PLAYERNAME_SIZE + PASSWORD_SIZE + 2)
+ min_net_proto_version = pkt->getU16(1 + PLAYERNAME_SIZE + PASSWORD_SIZE);
+
+ // Use same version as minimum and maximum if maximum version field
+ // doesn't exist (backwards compatibility)
+ u16 max_net_proto_version = min_net_proto_version;
+ if (pkt->getSize() >= 1 + PLAYERNAME_SIZE + PASSWORD_SIZE + 2 + 2)
+ max_net_proto_version = pkt->getU16(1 + PLAYERNAME_SIZE + PASSWORD_SIZE + 2);
+
+ // Start with client's maximum version
+ u16 net_proto_version = max_net_proto_version;
+
+ // Figure out a working version if it is possible at all
+ if (max_net_proto_version >= SERVER_PROTOCOL_VERSION_MIN ||
+ min_net_proto_version <= SERVER_PROTOCOL_VERSION_MAX) {
+ // If maximum is larger than our maximum, go with our maximum
+ if (max_net_proto_version > SERVER_PROTOCOL_VERSION_MAX)
+ net_proto_version = SERVER_PROTOCOL_VERSION_MAX;
+ // Else go with client's maximum
+ else
+ net_proto_version = max_net_proto_version;
+ }
+
+ verbosestream << "Server: " << addr_s << ": Protocol version: min: "
+ << min_net_proto_version << ", max: " << max_net_proto_version
+ << ", chosen: " << net_proto_version << std::endl;
+
+ client->net_proto_version = net_proto_version;
+
+ if (net_proto_version < SERVER_PROTOCOL_VERSION_MIN ||
+ net_proto_version > SERVER_PROTOCOL_VERSION_MAX) {
+ actionstream << "Server: A mismatched client tried to connect from "
+ << addr_s << std::endl;
+ DenyAccess(pkt->getPeerId(), std::wstring(
+ L"Your client's version is not supported.\n"
+ L"Server version is ")
+ + narrow_to_wide(minetest_version_simple) + L",\n"
+ + L"server's PROTOCOL_VERSION is "
+ + narrow_to_wide(itos(SERVER_PROTOCOL_VERSION_MIN))
+ + L"..."
+ + narrow_to_wide(itos(SERVER_PROTOCOL_VERSION_MAX))
+ + L", client's PROTOCOL_VERSION is "
+ + narrow_to_wide(itos(min_net_proto_version))
+ + L"..."
+ + narrow_to_wide(itos(max_net_proto_version))
+ );
+ return;
+ }
+
+ if (g_settings->getBool("strict_protocol_version_checking")) {
+ if (net_proto_version != LATEST_PROTOCOL_VERSION) {
+ actionstream << "Server: A mismatched (strict) client tried to "
+ << "connect from " << addr_s << std::endl;
+ DenyAccess(pkt->getPeerId(), std::wstring(
+ L"Your client's version is not supported.\n"
+ L"Server version is ")
+ + narrow_to_wide(minetest_version_simple) + L",\n"
+ + L"server's PROTOCOL_VERSION (strict) is "
+ + narrow_to_wide(itos(LATEST_PROTOCOL_VERSION))
+ + L", client's PROTOCOL_VERSION is "
+ + narrow_to_wide(itos(min_net_proto_version))
+ + L"..."
+ + narrow_to_wide(itos(max_net_proto_version))
+ );
+ return;
+ }
+ }
+
+ /*
+ Set up player
+ */
+ char playername[PLAYERNAME_SIZE];
+ unsigned int playername_length = 0;
+ for (; playername_length < PLAYERNAME_SIZE; playername_length++ ) {
+ playername[playername_length] = pkt->getChar(1+playername_length);
+ if (pkt->getChar(1+playername_length) == 0)
+ break;
+ }
+
+ if (playername_length == PLAYERNAME_SIZE) {
+ actionstream << "Server: Player with name exceeding max length "
+ << "tried to connect from " << addr_s << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Name too long");
+ return;
+ }
+
+
+ if (playername[0]=='\0') {
+ actionstream << "Server: Player with an empty name "
+ << "tried to connect from " << addr_s << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Empty name");
+ return;
+ }
+
+ if (string_allowed(playername, PLAYERNAME_ALLOWED_CHARS) == false) {
+ actionstream << "Server: Player with an invalid name "
+ << "tried to connect from " << addr_s << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Name contains unallowed characters");
+ return;
+ }
+
+ if (!isSingleplayer() && strcasecmp(playername, "singleplayer") == 0) {
+ actionstream << "Server: Player with the name \"singleplayer\" "
+ << "tried to connect from " << addr_s << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Name is not allowed");
+ return;
+ }
+
+ {
+ std::string reason;
+ if (m_script->on_prejoinplayer(playername, addr_s, reason)) {
+ actionstream << "Server: Player with the name \"" << playername << "\" "
+ << "tried to connect from " << addr_s << " "
+ << "but it was disallowed for the following reason: "
+ << reason << std::endl;
+ DenyAccess(pkt->getPeerId(), narrow_to_wide(reason.c_str()));
+ return;
+ }
+ }
+
+ infostream<<"Server: New connection: \""<<playername<<"\" from "
+ <<addr_s<<" (peer_id="<<pkt->getPeerId()<<")"<<std::endl;
+
+ // Get password
+ char given_password[PASSWORD_SIZE];
+ if (pkt->getSize() < 1 + PLAYERNAME_SIZE + PASSWORD_SIZE) {
+ // old version - assume blank password
+ given_password[0] = 0;
+ }
+ else {
+ for (u16 i = 0; i < PASSWORD_SIZE - 1; i++) {
+ given_password[i] = pkt->getChar(21 + i);
+ }
+ given_password[PASSWORD_SIZE - 1] = 0;
+ }
+
+ if (!base64_is_valid(given_password)) {
+ actionstream << "Server: " << playername
+ << " supplied invalid password hash" << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Invalid password hash");
+ return;
+ }
+
+ // Enforce user limit.
+ // Don't enforce for users that have some admin right
+ if (m_clients.getClientIDs(CS_Created).size() >= g_settings->getU16("max_users") &&
+ !checkPriv(playername, "server") &&
+ !checkPriv(playername, "ban") &&
+ !checkPriv(playername, "privs") &&
+ !checkPriv(playername, "password") &&
+ playername != g_settings->get("name")) {
+ actionstream << "Server: " << playername << " tried to join, but there"
+ << " are already max_users="
+ << g_settings->getU16("max_users") << " players." << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Too many users.");
+ return;
+ }
+
+ std::string checkpwd; // Password hash to check against
+ bool has_auth = m_script->getAuth(playername, &checkpwd, NULL);
+
+ // If no authentication info exists for user, create it
+ if (!has_auth) {
+ if (!isSingleplayer() &&
+ g_settings->getBool("disallow_empty_password") &&
+ std::string(given_password) == "") {
+ actionstream << "Server: " << playername
+ << " supplied empty password" << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Empty passwords are "
+ L"disallowed. Set a password and try again.");
+ return;
+ }
+ std::wstring raw_default_password =
+ narrow_to_wide(g_settings->get("default_password"));
+ std::string initial_password =
+ translatePassword(playername, raw_default_password);
+
+ // If default_password is empty, allow any initial password
+ if (raw_default_password.length() == 0)
+ initial_password = given_password;
+
+ m_script->createAuth(playername, initial_password);
+ }
+
+ has_auth = m_script->getAuth(playername, &checkpwd, NULL);
+
+ if (!has_auth) {
+ actionstream << "Server: " << playername << " cannot be authenticated"
+ << " (auth handler does not work?)" << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Not allowed to login");
+ return;
+ }
+
+ if (given_password != checkpwd) {
+ actionstream << "Server: " << playername << " supplied wrong password"
+ << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Wrong password");
+ return;
+ }
+
+ RemotePlayer *player =
+ static_cast<RemotePlayer*>(m_env->getPlayer(playername));
+
+ if (player && player->peer_id != 0) {
+ errorstream << "Server: " << playername << ": Failed to emerge player"
+ << " (player allocated to an another client)" << std::endl;
+ DenyAccess(pkt->getPeerId(), L"Another client is connected with this "
+ L"name. If your client closed unexpectedly, try again in "
+ L"a minute.");
+ }
+
+ m_clients.setPlayerName(pkt->getPeerId(), playername);
+
+ /*
+ Answer with a TOCLIENT_INIT
+ */
+
+ NetworkPacket* resp_pkt = new NetworkPacket(TOCLIENT_INIT, 1 + 6 + 8 + 4,
+ pkt->getPeerId());
+
+ *resp_pkt << (u8) deployed << (v3s16) floatToInt(v3f(0,0,0), BS)
+ << (u64) m_env->getServerMap().getSeed()
+ << g_settings->getFloat("dedicated_server_step");
+
+ Send(resp_pkt);
+ m_clients.event(pkt->getPeerId(), CSE_Init);
+}
+
+void Server::handleCommand_Init2(NetworkPacket* pkt)
+{
+ verbosestream << "Server: Got TOSERVER_INIT2 from "
+ << pkt->getPeerId() << std::endl;
+
+ m_clients.event(pkt->getPeerId(), CSE_GotInit2);
+ u16 protocol_version = m_clients.getProtocolVersion(pkt->getPeerId());
+
+
+ ///// begin compatibility code
+ PlayerSAO* playersao = NULL;
+ if (protocol_version <= 22) {
+ playersao = StageTwoClientInit(pkt->getPeerId());
+
+ if (playersao == NULL) {
+ errorstream
+ << "TOSERVER_INIT2 stage 2 client init failed for peer "
+ << pkt->getPeerId() << std::endl;
+ return;
+ }
+ }
+ ///// end compatibility code
+
+ /*
+ Send some initialization data
+ */
+
+ infostream << "Server: Sending content to "
+ << getPlayerName(pkt->getPeerId()) << std::endl;
+
+ // Send player movement settings
+ SendMovement(pkt->getPeerId());
+
+ // Send item definitions
+ SendItemDef(pkt->getPeerId(), m_itemdef, protocol_version);
+
+ // Send node definitions
+ SendNodeDef(pkt->getPeerId(), m_nodedef, protocol_version);
+
+ m_clients.event(pkt->getPeerId(), CSE_SetDefinitionsSent);
+
+ // Send media announcement
+ sendMediaAnnouncement(pkt->getPeerId());
+
+ // Send detached inventories
+ sendDetachedInventories(pkt->getPeerId());
+
+ // Send time of day
+ u16 time = m_env->getTimeOfDay();
+ float time_speed = g_settings->getFloat("time_speed");
+ SendTimeOfDay(pkt->getPeerId(), time, time_speed);
+
+ ///// begin compatibility code
+ if (protocol_version <= 22) {
+ m_clients.event(pkt->getPeerId(), CSE_SetClientReady);
+ m_script->on_joinplayer(playersao);
+ }
+ ///// end compatibility code
+
+ // Warnings about protocol version can be issued here
+ if (getClient(pkt->getPeerId())->net_proto_version < LATEST_PROTOCOL_VERSION) {
+ SendChatMessage(pkt->getPeerId(), L"# Server: WARNING: YOUR CLIENT'S "
+ L"VERSION MAY NOT BE FULLY COMPATIBLE WITH THIS SERVER!");
+ }
+}
+
+void Server::handleCommand_RequestMedia(NetworkPacket* pkt)
+{
+ std::list<std::string> tosend;
+ u16 numfiles;
+
+ *pkt >> numfiles;
+
+ infostream << "Sending " << numfiles << " files to "
+ << getPlayerName(pkt->getPeerId()) << std::endl;
+ verbosestream << "TOSERVER_REQUEST_MEDIA: " << std::endl;
+
+ for (u16 i = 0; i < numfiles; i++) {
+ std::string name;
+
+ *pkt >> name;
+
+ tosend.push_back(name);
+ verbosestream << "TOSERVER_REQUEST_MEDIA: requested file "
+ << name << std::endl;
+ }
+
+ sendRequestedMedia(pkt->getPeerId(), tosend);
+}
+
+void Server::handleCommand_ReceivedMedia(NetworkPacket* pkt)
+{
+}
+
+void Server::handleCommand_ClientReady(NetworkPacket* pkt)
+{
+ u16 peer_id = pkt->getPeerId();
+ u16 peer_proto_ver = getClient(peer_id, CS_InitDone)->net_proto_version;
+
+ // clients <= protocol version 22 did not send ready message,
+ // they're already initialized
+ if (peer_proto_ver <= 22) {
+ infostream << "Client sent message not expected by a "
+ << "client using protocol version <= 22,"
+ << "disconnecing peer_id: " << peer_id << std::endl;
+ m_con.DisconnectPeer(peer_id);
+ return;
+ }
+
+ PlayerSAO* playersao = StageTwoClientInit(peer_id);
+
+ if (playersao == NULL) {
+ errorstream
+ << "TOSERVER_CLIENT_READY stage 2 client init failed for peer_id: "
+ << peer_id << std::endl;
+ m_con.DisconnectPeer(peer_id);
+ return;
+ }
+
+
+ if (pkt->getSize() < 8) {
+ errorstream
+ << "TOSERVER_CLIENT_READY client sent inconsistent data, disconnecting peer_id: "
+ << peer_id << std::endl;
+ m_con.DisconnectPeer(peer_id);
+ return;
+ }
+
+ u8 major_ver, minor_ver, patch_ver;
+ *pkt >> major_ver >> minor_ver >> patch_ver;
+
+ m_clients.setClientVersion(
+ peer_id, major_ver, minor_ver, patch_ver,
+ std::string(pkt->getString(6),(u16) pkt->getU8(4)));
+
+ m_clients.event(peer_id, CSE_SetClientReady);
+ m_script->on_joinplayer(playersao);
+}
+
+void Server::handleCommand_GotBlocks(NetworkPacket* pkt)
+{
+ if (pkt->getSize() < 1)
+ return;
+
+ /*
+ [0] u16 command
+ [2] u8 count
+ [3] v3s16 pos_0
+ [3+6] v3s16 pos_1
+ ...
+ */
+
+ u8 count;
+ *pkt >> count;
+
+ RemoteClient *client = getClient(pkt->getPeerId());
+
+ for (u16 i = 0; i < count; i++) {
+ if ((s16)pkt->getSize() < 1 + (i + 1) * 6)
+ throw con::InvalidIncomingDataException
+ ("GOTBLOCKS length is too short");
+ v3s16 p;
+
+ *pkt >> p;
+
+ client->GotBlock(p);
+ }
+}
+
+void Server::handleCommand_PlayerPos(NetworkPacket* pkt)
+{
+ if (pkt->getSize() < 12 + 12 + 4 + 4)
+ return;
+
+ v3s32 ps, ss;
+ s32 f32pitch, f32yaw;
+
+ *pkt >> ps;
+ *pkt >> ss;
+ *pkt >> f32pitch;
+ *pkt >> f32yaw;
+
+ f32 pitch = (f32)f32pitch / 100.0;
+ f32 yaw = (f32)f32yaw / 100.0;
+ u32 keyPressed = 0;
+
+ if (pkt->getSize() >= 12 + 12 + 4 + 4 + 4)
+ *pkt >> keyPressed;
+
+ v3f position((f32)ps.X / 100.0, (f32)ps.Y / 100.0, (f32)ps.Z / 100.0);
+ v3f speed((f32)ss.X / 100.0, (f32)ss.Y / 100.0, (f32)ss.Z / 100.0);
+
+ pitch = wrapDegrees(pitch);
+ yaw = wrapDegrees(yaw);
+
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if (player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ PlayerSAO *playersao = player->getPlayerSAO();
+ if (playersao == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player object for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ player->setPosition(position);
+ player->setSpeed(speed);
+ player->setPitch(pitch);
+ player->setYaw(yaw);
+ player->keyPressed = keyPressed;
+ player->control.up = (keyPressed & 1);
+ player->control.down = (keyPressed & 2);
+ player->control.left = (keyPressed & 4);
+ player->control.right = (keyPressed & 8);
+ player->control.jump = (keyPressed & 16);
+ player->control.aux1 = (keyPressed & 32);
+ player->control.sneak = (keyPressed & 64);
+ player->control.LMB = (keyPressed & 128);
+ player->control.RMB = (keyPressed & 256);
+
+ bool cheated = playersao->checkMovementCheat();
+ if (cheated) {
+ // Call callbacks
+ m_script->on_cheat(playersao, "moved_too_fast");
+ }
+}
+
+void Server::handleCommand_DeletedBlocks(NetworkPacket* pkt)
+{
+ if (pkt->getSize() < 1)
+ return;
+
+ /*
+ [0] u16 command
+ [2] u8 count
+ [3] v3s16 pos_0
+ [3+6] v3s16 pos_1
+ ...
+ */
+
+ u8 count;
+ *pkt >> count;
+
+ RemoteClient *client = getClient(pkt->getPeerId());
+
+ for (u16 i = 0; i < count; i++) {
+ if ((s16)pkt->getSize() < 1 + (i + 1) * 6)
+ throw con::InvalidIncomingDataException
+ ("DELETEDBLOCKS length is too short");
+ v3s16 p;
+ *pkt >> p;
+
+ client->SetBlockNotSent(p);
+ }
+}
+
+void Server::handleCommand_InventoryAction(NetworkPacket* pkt)
+{
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if (player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ PlayerSAO *playersao = player->getPlayerSAO();
+ if (playersao == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player object for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ // Strip command and create a stream
+ std::string datastring(pkt->getString(0), pkt->getSize());
+ verbosestream << "TOSERVER_INVENTORY_ACTION: data=" << datastring
+ << std::endl;
+ std::istringstream is(datastring, std::ios_base::binary);
+ // Create an action
+ InventoryAction *a = InventoryAction::deSerialize(is);
+ if (a == NULL) {
+ infostream << "TOSERVER_INVENTORY_ACTION: "
+ << "InventoryAction::deSerialize() returned NULL"
+ << std::endl;
+ return;
+ }
+
+ // If something goes wrong, this player is to blame
+ RollbackScopeActor rollback_scope(m_rollback,
+ std::string("player:")+player->getName());
+
+ /*
+ Note: Always set inventory not sent, to repair cases
+ where the client made a bad prediction.
+ */
+
+ /*
+ Handle restrictions and special cases of the move action
+ */
+ if (a->getType() == IACTION_MOVE) {
+ IMoveAction *ma = (IMoveAction*)a;
+
+ ma->from_inv.applyCurrentPlayer(player->getName());
+ ma->to_inv.applyCurrentPlayer(player->getName());
+
+ setInventoryModified(ma->from_inv);
+ setInventoryModified(ma->to_inv);
+
+ bool from_inv_is_current_player =
+ (ma->from_inv.type == InventoryLocation::PLAYER) &&
+ (ma->from_inv.name == player->getName());
+
+ bool to_inv_is_current_player =
+ (ma->to_inv.type == InventoryLocation::PLAYER) &&
+ (ma->to_inv.name == player->getName());
+
+ /*
+ Disable moving items out of craftpreview
+ */
+ if (ma->from_list == "craftpreview") {
+ infostream << "Ignoring IMoveAction from "
+ << (ma->from_inv.dump()) << ":" << ma->from_list
+ << " to " << (ma->to_inv.dump()) << ":" << ma->to_list
+ << " because src is " << ma->from_list << std::endl;
+ delete a;
+ return;
+ }
+
+ /*
+ Disable moving items into craftresult and craftpreview
+ */
+ if (ma->to_list == "craftpreview" || ma->to_list == "craftresult") {
+ infostream << "Ignoring IMoveAction from "
+ << (ma->from_inv.dump()) << ":" << ma->from_list
+ << " to " << (ma->to_inv.dump()) << ":" << ma->to_list
+ << " because dst is " << ma->to_list << std::endl;
+ delete a;
+ return;
+ }
+
+ // Disallow moving items in elsewhere than player's inventory
+ // if not allowed to interact
+ if (!checkPriv(player->getName(), "interact") &&
+ (!from_inv_is_current_player ||
+ !to_inv_is_current_player)) {
+ infostream << "Cannot move outside of player's inventory: "
+ << "No interact privilege" << std::endl;
+ delete a;
+ return;
+ }
+ }
+ /*
+ Handle restrictions and special cases of the drop action
+ */
+ else if (a->getType() == IACTION_DROP) {
+ IDropAction *da = (IDropAction*)a;
+
+ da->from_inv.applyCurrentPlayer(player->getName());
+
+ setInventoryModified(da->from_inv);
+
+ /*
+ Disable dropping items out of craftpreview
+ */
+ if (da->from_list == "craftpreview") {
+ infostream << "Ignoring IDropAction from "
+ << (da->from_inv.dump()) << ":" << da->from_list
+ << " because src is " << da->from_list << std::endl;
+ delete a;
+ return;
+ }
+
+ // Disallow dropping items if not allowed to interact
+ if (!checkPriv(player->getName(), "interact")) {
+ delete a;
+ return;
+ }
+ }
+ /*
+ Handle restrictions and special cases of the craft action
+ */
+ else if (a->getType() == IACTION_CRAFT) {
+ ICraftAction *ca = (ICraftAction*)a;
+
+ ca->craft_inv.applyCurrentPlayer(player->getName());
+
+ setInventoryModified(ca->craft_inv);
+
+ //bool craft_inv_is_current_player =
+ // (ca->craft_inv.type == InventoryLocation::PLAYER) &&
+ // (ca->craft_inv.name == player->getName());
+
+ // Disallow crafting if not allowed to interact
+ if (!checkPriv(player->getName(), "interact")) {
+ infostream << "Cannot craft: "
+ << "No interact privilege" << std::endl;
+ delete a;
+ return;
+ }
+ }
+
+ // Do the action
+ a->apply(this, playersao, this);
+ // Eat the action
+ delete a;
+}
+
+void Server::handleCommand_ChatMessage(NetworkPacket* pkt)
+{
+ /*
+ u16 command
+ u16 length
+ wstring message
+ */
+ u16 len;
+ *pkt >> len;
+
+ std::wstring message;
+ for (u16 i = 0; i < len; i++) {
+ u16 tmp_wchar;
+ *pkt >> tmp_wchar;
+
+ message += (wchar_t)tmp_wchar;
+ }
+
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if (player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ // If something goes wrong, this player is to blame
+ RollbackScopeActor rollback_scope(m_rollback,
+ std::string("player:")+player->getName());
+
+ // Get player name of this client
+ std::wstring name = narrow_to_wide(player->getName());
+
+ // Run script hook
+ bool ate = m_script->on_chat_message(player->getName(),
+ wide_to_narrow(message));
+ // If script ate the message, don't proceed
+ if (ate)
+ return;
+
+ // Line to send to players
+ std::wstring line;
+ // Whether to send to the player that sent the line
+ bool send_to_sender_only = false;
+
+ // Commands are implemented in Lua, so only catch invalid
+ // commands that were not "eaten" and send an error back
+ if (message[0] == L'/') {
+ message = message.substr(1);
+ send_to_sender_only = true;
+ if (message.length() == 0)
+ line += L"-!- Empty command";
+ else
+ line += L"-!- Invalid command: " + str_split(message, L' ')[0];
+ }
+ else {
+ if (checkPriv(player->getName(), "shout")) {
+ line += L"<";
+ line += name;
+ line += L"> ";
+ line += message;
+ } else {
+ line += L"-!- You don't have permission to shout.";
+ send_to_sender_only = true;
+ }
+ }
+
+ if (line != L"")
+ {
+ /*
+ Send the message to sender
+ */
+ if (send_to_sender_only) {
+ SendChatMessage(pkt->getPeerId(), line);
+ }
+ /*
+ Send the message to others
+ */
+ else {
+ actionstream << "CHAT: " << wide_to_narrow(line)<<std::endl;
+
+ std::list<u16> clients = m_clients.getClientIDs();
+
+ for (std::list<u16>::iterator
+ i = clients.begin();
+ i != clients.end(); ++i) {
+ if (*i != pkt->getPeerId())
+ SendChatMessage(*i, line);
+ }
+ }
+ }
+}
+
+void Server::handleCommand_Damage(NetworkPacket* pkt)
+{
+ u8 damage;
+
+ *pkt >> damage;
+
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if (player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ PlayerSAO *playersao = player->getPlayerSAO();
+ if (playersao == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player object for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ if (g_settings->getBool("enable_damage")) {
+ actionstream << player->getName() << " damaged by "
+ << (int)damage << " hp at " << PP(player->getPosition() / BS)
+ << std::endl;
+
+ playersao->setHP(playersao->getHP() - damage);
+
+ if (playersao->getHP() == 0 && playersao->m_hp_not_sent)
+ DiePlayer(pkt->getPeerId());
+
+ if (playersao->m_hp_not_sent)
+ SendPlayerHP(pkt->getPeerId());
+ }
+}
+
+void Server::handleCommand_Breath(NetworkPacket* pkt)
+{
+ u16 breath;
+
+ *pkt >> breath;
+
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if (player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ PlayerSAO *playersao = player->getPlayerSAO();
+ if (playersao == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player object for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ playersao->setBreath(breath);
+ m_script->player_event(playersao,"breath_changed");
+}
+
+void Server::handleCommand_Password(NetworkPacket* pkt)
+{
+ /*
+ [0] u16 TOSERVER_PASSWORD
+ [2] u8[28] old password
+ [30] u8[28] new password
+ */
+
+ errorstream << "PAssword packet size: " << pkt->getSize() << " size required: " << PASSWORD_SIZE * 2 << std::endl;
+ if (pkt->getSize() != PASSWORD_SIZE * 2)
+ return;
+
+ std::string oldpwd;
+ std::string newpwd;
+
+ for (u16 i = 0; i < PASSWORD_SIZE - 1; i++) {
+ char c = pkt->getChar(i);
+ if (c == 0)
+ break;
+ oldpwd += c;
+ }
+
+ for (u16 i = 0; i < PASSWORD_SIZE - 1; i++) {
+ char c = pkt->getChar(PASSWORD_SIZE + i);
+ if (c == 0)
+ break;
+ newpwd += c;
+ }
+
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if (player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ if (!base64_is_valid(newpwd)) {
+ infostream<<"Server: " << player->getName() <<
+ " supplied invalid password hash" << std::endl;
+ // Wrong old password supplied!!
+ SendChatMessage(pkt->getPeerId(), L"Invalid new password hash supplied. Password NOT changed.");
+ return;
+ }
+
+ infostream << "Server: Client requests a password change from "
+ << "'" << oldpwd << "' to '" << newpwd << "'" << std::endl;
+
+ std::string playername = player->getName();
+
+ std::string checkpwd;
+ m_script->getAuth(playername, &checkpwd, NULL);
+
+ if (oldpwd != checkpwd) {
+ infostream << "Server: invalid old password" << std::endl;
+ // Wrong old password supplied!!
+ SendChatMessage(pkt->getPeerId(), L"Invalid old password supplied. Password NOT changed.");
+ return;
+ }
+
+ bool success = m_script->setPassword(playername, newpwd);
+ if (success) {
+ actionstream << player->getName() << " changes password" << std::endl;
+ SendChatMessage(pkt->getPeerId(), L"Password change successful.");
+ } else {
+ actionstream << player->getName() << " tries to change password but "
+ << "it fails" << std::endl;
+ SendChatMessage(pkt->getPeerId(), L"Password change failed or inavailable.");
+ }
+}
+
+void Server::handleCommand_PlayerItem(NetworkPacket* pkt)
+{
+ if (pkt->getSize() < 2)
+ return;
+
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if (player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ PlayerSAO *playersao = player->getPlayerSAO();
+ if (playersao == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player object for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ u16 item;
+
+ *pkt >> item;
+
+ playersao->setWieldIndex(item);
+}
+
+void Server::handleCommand_Respawn(NetworkPacket* pkt)
+{
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if (player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ if (player->hp != 0 || !g_settings->getBool("enable_damage"))
+ return;
+
+ RespawnPlayer(pkt->getPeerId());
+
+ actionstream<<player->getName()<<" respawns at "
+ <<PP(player->getPosition()/BS)<<std::endl;
+
+ // ActiveObject is added to environment in AsyncRunStep after
+ // the previous addition has been succesfully removed
+}
+
+void Server::handleCommand_Interact(NetworkPacket* pkt)
+{
+ std::string datastring(pkt->getString(0), pkt->getSize());
+ std::istringstream is(datastring, std::ios_base::binary);
+
+ /*
+ [0] u16 command
+ [2] u8 action
+ [3] u16 item
+ [5] u32 length of the next item
+ [9] serialized PointedThing
+ actions:
+ 0: start digging (from undersurface) or use
+ 1: stop digging (all parameters ignored)
+ 2: digging completed
+ 3: place block or item (to abovesurface)
+ 4: use item
+ */
+ u8 action = readU8(is);
+ u16 item_i = readU16(is);
+ std::istringstream tmp_is(deSerializeLongString(is), std::ios::binary);
+ PointedThing pointed;
+ pointed.deSerialize(tmp_is);
+
+ verbosestream << "TOSERVER_INTERACT: action=" << (int)action << ", item="
+ << item_i << ", pointed=" << pointed.dump() << std::endl;
+
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if (player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ PlayerSAO *playersao = player->getPlayerSAO();
+ if (playersao == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player object for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ if (player->hp == 0) {
+ verbosestream << "TOSERVER_INTERACT: " << player->getName()
+ << " tried to interact, but is dead!" << std::endl;
+ return;
+ }
+
+ v3f player_pos = playersao->getLastGoodPosition();
+
+ // Update wielded item
+ playersao->setWieldIndex(item_i);
+
+ // Get pointed to node (undefined if not POINTEDTYPE_NODE)
+ v3s16 p_under = pointed.node_undersurface;
+ v3s16 p_above = pointed.node_abovesurface;
+
+ // Get pointed to object (NULL if not POINTEDTYPE_OBJECT)
+ ServerActiveObject *pointed_object = NULL;
+ if (pointed.type == POINTEDTHING_OBJECT) {
+ pointed_object = m_env->getActiveObject(pointed.object_id);
+ if (pointed_object == NULL) {
+ verbosestream << "TOSERVER_INTERACT: "
+ "pointed object is NULL" << std::endl;
+ return;
+ }
+
+ }
+
+ v3f pointed_pos_under = player_pos;
+ v3f pointed_pos_above = player_pos;
+ if (pointed.type == POINTEDTHING_NODE) {
+ pointed_pos_under = intToFloat(p_under, BS);
+ pointed_pos_above = intToFloat(p_above, BS);
+ }
+ else if (pointed.type == POINTEDTHING_OBJECT) {
+ pointed_pos_under = pointed_object->getBasePosition();
+ pointed_pos_above = pointed_pos_under;
+ }
+
+ /*
+ Check that target is reasonably close
+ (only when digging or placing things)
+ */
+ if (action == 0 || action == 2 || action == 3) {
+ float d = player_pos.getDistanceFrom(pointed_pos_under);
+ float max_d = BS * 14; // Just some large enough value
+ if (d > max_d) {
+ actionstream << "Player " << player->getName()
+ << " tried to access " << pointed.dump()
+ << " from too far: "
+ << "d=" << d <<", max_d=" << max_d
+ << ". ignoring." << std::endl;
+ // Re-send block to revert change on client-side
+ RemoteClient *client = getClient(pkt->getPeerId());
+ v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
+ client->SetBlockNotSent(blockpos);
+ // Call callbacks
+ m_script->on_cheat(playersao, "interacted_too_far");
+ // Do nothing else
+ return;
+ }
+ }
+
+ /*
+ Make sure the player is allowed to do it
+ */
+ if (!checkPriv(player->getName(), "interact")) {
+ actionstream<<player->getName()<<" attempted to interact with "
+ <<pointed.dump()<<" without 'interact' privilege"
+ <<std::endl;
+ // Re-send block to revert change on client-side
+ RemoteClient *client = getClient(pkt->getPeerId());
+ // Digging completed -> under
+ if (action == 2) {
+ v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
+ client->SetBlockNotSent(blockpos);
+ }
+ // Placement -> above
+ if (action == 3) {
+ v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
+ client->SetBlockNotSent(blockpos);
+ }
+ return;
+ }
+
+ /*
+ If something goes wrong, this player is to blame
+ */
+ RollbackScopeActor rollback_scope(m_rollback,
+ std::string("player:")+player->getName());
+
+ /*
+ 0: start digging or punch object
+ */
+ if (action == 0) {
+ if (pointed.type == POINTEDTHING_NODE) {
+ /*
+ NOTE: This can be used in the future to check if
+ somebody is cheating, by checking the timing.
+ */
+ MapNode n(CONTENT_IGNORE);
+ bool pos_ok;
+ n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
+ if (pos_ok)
+ n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
+
+ if (!pos_ok) {
+ infostream << "Server: Not punching: Node not found."
+ << " Adding block to emerge queue."
+ << std::endl;
+ m_emerge->enqueueBlockEmerge(pkt->getPeerId(), getNodeBlockPos(p_above), false);
+ }
+
+ if (n.getContent() != CONTENT_IGNORE)
+ m_script->node_on_punch(p_under, n, playersao, pointed);
+ // Cheat prevention
+ playersao->noCheatDigStart(p_under);
+ }
+ else if (pointed.type == POINTEDTHING_OBJECT) {
+ // Skip if object has been removed
+ if (pointed_object->m_removed)
+ return;
+
+ actionstream<<player->getName()<<" punches object "
+ <<pointed.object_id<<": "
+ <<pointed_object->getDescription()<<std::endl;
+
+ ItemStack punchitem = playersao->getWieldedItem();
+ ToolCapabilities toolcap =
+ punchitem.getToolCapabilities(m_itemdef);
+ v3f dir = (pointed_object->getBasePosition() -
+ (player->getPosition() + player->getEyeOffset())
+ ).normalize();
+ float time_from_last_punch =
+ playersao->resetTimeFromLastPunch();
+ pointed_object->punch(dir, &toolcap, playersao,
+ time_from_last_punch);
+ }
+
+ } // action == 0
+
+ /*
+ 1: stop digging
+ */
+ else if (action == 1) {
+ } // action == 1
+
+ /*
+ 2: Digging completed
+ */
+ else if (action == 2) {
+ // Only digging of nodes
+ if (pointed.type == POINTEDTHING_NODE) {
+ bool pos_ok;
+ MapNode n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
+ if (!pos_ok) {
+ infostream << "Server: Not finishing digging: Node not found."
+ << " Adding block to emerge queue."
+ << std::endl;
+ m_emerge->enqueueBlockEmerge(pkt->getPeerId(), getNodeBlockPos(p_above), false);
+ }
+
+ /* Cheat prevention */
+ bool is_valid_dig = true;
+ if (!isSingleplayer() && !g_settings->getBool("disable_anticheat")) {
+ v3s16 nocheat_p = playersao->getNoCheatDigPos();
+ float nocheat_t = playersao->getNoCheatDigTime();
+ playersao->noCheatDigEnd();
+ // If player didn't start digging this, ignore dig
+ if (nocheat_p != p_under) {
+ infostream << "Server: NoCheat: " << player->getName()
+ << " started digging "
+ << PP(nocheat_p) << " and completed digging "
+ << PP(p_under) << "; not digging." << std::endl;
+ is_valid_dig = false;
+ // Call callbacks
+ m_script->on_cheat(playersao, "finished_unknown_dig");
+ }
+ // Get player's wielded item
+ ItemStack playeritem;
+ InventoryList *mlist = playersao->getInventory()->getList("main");
+ if (mlist != NULL)
+ playeritem = mlist->getItem(playersao->getWieldIndex());
+ ToolCapabilities playeritem_toolcap =
+ playeritem.getToolCapabilities(m_itemdef);
+ // Get diggability and expected digging time
+ DigParams params = getDigParams(m_nodedef->get(n).groups,
+ &playeritem_toolcap);
+ // If can't dig, try hand
+ if (!params.diggable) {
+ const ItemDefinition &hand = m_itemdef->get("");
+ const ToolCapabilities *tp = hand.tool_capabilities;
+ if (tp)
+ params = getDigParams(m_nodedef->get(n).groups, tp);
+ }
+ // If can't dig, ignore dig
+ if (!params.diggable) {
+ infostream << "Server: NoCheat: " << player->getName()
+ << " completed digging " << PP(p_under)
+ << ", which is not diggable with tool. not digging."
+ << std::endl;
+ is_valid_dig = false;
+ // Call callbacks
+ m_script->on_cheat(playersao, "dug_unbreakable");
+ }
+ // Check digging time
+ // If already invalidated, we don't have to
+ if (!is_valid_dig) {
+ // Well not our problem then
+ }
+ // Clean and long dig
+ else if (params.time > 2.0 && nocheat_t * 1.2 > params.time) {
+ // All is good, but grab time from pool; don't care if
+ // it's actually available
+ playersao->getDigPool().grab(params.time);
+ }
+ // Short or laggy dig
+ // Try getting the time from pool
+ else if (playersao->getDigPool().grab(params.time)) {
+ // All is good
+ }
+ // Dig not possible
+ else {
+ infostream << "Server: NoCheat: " << player->getName()
+ << " completed digging " << PP(p_under)
+ << "too fast; not digging." << std::endl;
+ is_valid_dig = false;
+ // Call callbacks
+ m_script->on_cheat(playersao, "dug_too_fast");
+ }
+ }
+
+ /* Actually dig node */
+
+ if (is_valid_dig && n.getContent() != CONTENT_IGNORE)
+ m_script->node_on_dig(p_under, n, playersao);
+
+ v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
+ RemoteClient *client = getClient(pkt->getPeerId());
+ // Send unusual result (that is, node not being removed)
+ if (m_env->getMap().getNodeNoEx(p_under).getContent() != CONTENT_AIR) {
+ // Re-send block to revert change on client-side
+ client->SetBlockNotSent(blockpos);
+ }
+ else {
+ client->ResendBlockIfOnWire(blockpos);
+ }
+ }
+ } // action == 2
+
+ /*
+ 3: place block or right-click object
+ */
+ else if (action == 3) {
+ ItemStack item = playersao->getWieldedItem();
+
+ // Reset build time counter
+ if (pointed.type == POINTEDTHING_NODE &&
+ item.getDefinition(m_itemdef).type == ITEM_NODE)
+ getClient(pkt->getPeerId())->m_time_from_building = 0.0;
+
+ if (pointed.type == POINTEDTHING_OBJECT) {
+ // Right click object
+
+ // Skip if object has been removed
+ if (pointed_object->m_removed)
+ return;
+
+ actionstream << player->getName() << " right-clicks object "
+ << pointed.object_id << ": "
+ << pointed_object->getDescription() << std::endl;
+
+ // Do stuff
+ pointed_object->rightClick(playersao);
+ }
+ else if (m_script->item_OnPlace(
+ item, playersao, pointed)) {
+ // Placement was handled in lua
+
+ // Apply returned ItemStack
+ playersao->setWieldedItem(item);
+ }
+
+ // If item has node placement prediction, always send the
+ // blocks to make sure the client knows what exactly happened
+ RemoteClient *client = getClient(pkt->getPeerId());
+ v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
+ v3s16 blockpos2 = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
+ if (item.getDefinition(m_itemdef).node_placement_prediction != "") {
+ client->SetBlockNotSent(blockpos);
+ if (blockpos2 != blockpos) {
+ client->SetBlockNotSent(blockpos2);
+ }
+ }
+ else {
+ client->ResendBlockIfOnWire(blockpos);
+ if (blockpos2 != blockpos) {
+ client->ResendBlockIfOnWire(blockpos2);
+ }
+ }
+ } // action == 3
+
+ /*
+ 4: use
+ */
+ else if (action == 4) {
+ ItemStack item = playersao->getWieldedItem();
+
+ actionstream << player->getName() << " uses " << item.name
+ << ", pointing at " << pointed.dump() << std::endl;
+
+ if (m_script->item_OnUse(
+ item, playersao, pointed)) {
+ // Apply returned ItemStack
+ playersao->setWieldedItem(item);
+ }
+
+ } // action == 4
+
+
+ /*
+ Catch invalid actions
+ */
+ else {
+ infostream << "WARNING: Server: Invalid action "
+ << action << std::endl;
+ }
+}
+
+void Server::handleCommand_RemovedSounds(NetworkPacket* pkt)
+{
+ u16 num;
+ *pkt >> num;
+ for (u16 k = 0; k < num; k++) {
+ s32 id;
+
+ *pkt >> id;
+
+ std::map<s32, ServerPlayingSound>::iterator i =
+ m_playing_sounds.find(id);
+
+ if (i == m_playing_sounds.end())
+ continue;
+
+ ServerPlayingSound &psound = i->second;
+ psound.clients.erase(pkt->getPeerId());
+ if (psound.clients.empty())
+ m_playing_sounds.erase(i++);
+ }
+}
+
+void Server::handleCommand_NodeMetaFields(NetworkPacket* pkt)
+{
+ v3s16 p;
+ std::string formname;
+ u16 num;
+
+ *pkt >> p >> formname >> num;
+
+ std::map<std::string, std::string> fields;
+ for (u16 k = 0; k < num; k++) {
+ std::string fieldname;
+ *pkt >> fieldname;
+ fields[fieldname] = pkt->readLongString();
+ }
+
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if (player == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ PlayerSAO *playersao = player->getPlayerSAO();
+ if (playersao == NULL) {
+ errorstream << "Server::ProcessData(): Cancelling: "
+ "No player object for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ // If something goes wrong, this player is to blame
+ RollbackScopeActor rollback_scope(m_rollback,
+ std::string("player:")+player->getName());
+
+ // Check the target node for rollback data; leave others unnoticed
+ RollbackNode rn_old(&m_env->getMap(), p, this);
+
+ m_script->node_on_receive_fields(p, formname, fields, playersao);
+
+ // Report rollback data
+ RollbackNode rn_new(&m_env->getMap(), p, this);
+ if (rollback() && rn_new != rn_old) {
+ RollbackAction action;
+ action.setSetNode(p, rn_old, rn_new);
+ rollback()->reportAction(action);
+ }
+}
+
+void Server::handleCommand_InventoryFields(NetworkPacket* pkt)
+{
+ std::string formname;
+ u16 num;
+
+ *pkt >> formname >> num;
+
+ std::map<std::string, std::string> fields;
+ for (u16 k = 0; k < num; k++) {
+ std::string fieldname;
+ *pkt >> fieldname;
+ fields[fieldname] = pkt->readLongString();
+ }
+
+ Player *player = m_env->getPlayer(pkt->getPeerId());
+ if (player == NULL) {
+ errorstream << "Server::ProcessData(): Canceling: "
+ "No player for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ PlayerSAO *playersao = player->getPlayerSAO();
+ if (playersao == NULL) {
+ errorstream << "Server::ProcessData(): Canceling: "
+ "No player object for peer_id=" << pkt->getPeerId()
+ << " disconnecting peer!" << std::endl;
+ m_con.DisconnectPeer(pkt->getPeerId());
+ return;
+ }
+
+ m_script->on_playerReceiveFields(playersao, formname, fields);
+}
{ "TOSERVER_BREATH", TOSERVER_STATE_INGAME, &Server::handleCommand_Breath }, // 0x42
{ "TOSERVER_CLIENT_READY", TOSERVER_STATE_STARTUP, &Server::handleCommand_ClientReady }, // 0x43
};
+
+const static ClientCommandFactory null_command_factory = { "TOCLIENT_NULL", 0, false };
+
+const ClientCommandFactory clientCommandFactoryTable[TOCLIENT_NUM_MSG_TYPES] =
+{
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ { "TOCLIENT_INIT", 0, true }, // 0x10
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ { "TOCLIENT_BLOCKDATA", 2, true }, // 0x20
+ { "TOCLIENT_ADDNODE", 0, true }, // 0x21
+ { "TOCLIENT_REMOVENODE", 0, true }, // 0x22
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ { "TOCLIENT_INVENTORY", 0, true }, // 0x27
+ null_command_factory,
+ { "TOCLIENT_TIME_OF_DAY", 0, true }, // 0x29
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ null_command_factory,
+ { "TOCLIENT_CHAT_MESSAGE", 0, true }, // 0x30
+ { "TOCLIENT_ACTIVE_OBJECT_REMOVE_ADD", 0, true }, // 0x31
+ { "TOCLIENT_ACTIVE_OBJECT_MESSAGES", 0, true }, // 0x32 Special packet, sent by 0 (rel) and 1 (unrel) channel
+ { "TOCLIENT_HP", 0, true }, // 0x33
+ { "TOCLIENT_MOVE_PLAYER", 0, true }, // 0x34
+ { "TOCLIENT_ACCESS_DENIED", 0, true }, // 0x35
+ { "TOCLIENT_PLAYERITEM", 0, false }, // 0x36 obsolete
+ { "TOCLIENT_DEATHSCREEN", 0, true }, // 0x37
+ { "TOCLIENT_MEDIA", 2, true }, // 0x38
+ { "TOCLIENT_TOOLDEF", 0, false }, // 0x39 obsolete
+ { "TOCLIENT_NODEDEF", 0, true }, // 0x3a
+ { "TOCLIENT_CRAFTITEMDEF", 0, false }, // 0x3b obsolete
+ { "TOCLIENT_ANNOUNCE_MEDIA", 0, true }, // 0x3c
+ { "TOCLIENT_ITEMDEF", 0, true }, // 0x3d
+ null_command_factory,
+ { "TOCLIENT_PLAY_SOUND", 0, true }, // 0x3f
+ { "TOCLIENT_STOP_SOUND", 0, true }, // 0x40
+ { "TOCLIENT_PRIVILEGES", 0, true }, // 0x41
+ { "TOCLIENT_INVENTORY_FORMSPEC", 0, true }, // 0x42
+ { "TOCLIENT_DETACHED_INVENTORY", 0, true }, // 0x43
+ { "TOCLIENT_SHOW_FORMSPEC", 0, true }, // 0x44
+ { "TOCLIENT_MOVEMENT", 0, true }, // 0x45
+ { "TOCLIENT_SPAWN_PARTICLE", 0, true }, // 0x46
+ { "TOCLIENT_ADD_PARTICLESPAWNER", 0, true }, // 0x47
+ { "TOCLIENT_DELETE_PARTICLESPAWNER", 0, true }, // 0x48
+ { "TOCLIENT_HUDADD", 1, true }, // 0x49
+ { "TOCLIENT_HUDRM", 1, true }, // 0x4a
+ { "TOCLIENT_HUDCHANGE", 0, true }, // 0x4b
+ { "TOCLIENT_HUD_SET_FLAGS", 0, true }, // 0x4c
+ { "TOCLIENT_HUD_SET_PARAM", 0, true }, // 0x4d
+ { "TOCLIENT_BREATH", 0, true }, // 0x4e
+ { "TOCLIENT_SET_SKY", 0, true }, // 0x4f
+ { "TOCLIENT_OVERRIDE_DAY_NIGHT_RATIO", 0, true }, // 0x50
+ { "TOCLIENT_LOCAL_PLAYER_ANIMATIONS", 0, true }, // 0x51
+ { "TOCLIENT_EYE_OFFSET", 0, true }, // 0x52
+};
#include "server.h"
#include "networkprotocol.h"
-#include "toserverpacket.h"
+#include "networkpacket.h"
enum ToServerConnectionState {
TOSERVER_STATE_NOT_CONNECTED,
{
const std::string name;
ToServerConnectionState state;
- void (Server::*handler)(ToServerPacket* pkt);
+ void (Server::*handler)(NetworkPacket* pkt);
+};
+
+struct ClientCommandFactory
+{
+ const char* name;
+ u16 channel;
+ bool reliable;
};
extern const ToServerCommandHandler toServerCommandTable[TOSERVER_NUM_MSG_TYPES];
+extern const ClientCommandFactory clientCommandFactoryTable[TOCLIENT_NUM_MSG_TYPES];
+
#endif
+++ /dev/null
-/*
-Minetest
-Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
-Copyright (C) 2015 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation; either version 2.1 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#include "toclientpacket.h"
-#include "util/serialize.h"
-
-ToClientPacket::ToClientPacket(u8 *data, u32 datasize, u16 peer_id):
-NetworkPacket(data, datasize, peer_id)
-{
- m_command = (ToClientCommand)readU16(&data[0]);
-}
+++ /dev/null
-/*
-Minetest
-Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
-Copyright (C) 2015 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation; either version 2.1 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#ifndef TOCLIENTPACKET_HEADER
-#define TOCLIENTPACKET_HEADER
-
-#include "util/numeric.h"
-#include "networkprotocol.h"
-#include "networkpacket.h"
-
-class ToClientPacket: public NetworkPacket
-{
-public:
- ToClientPacket(u8 *data, u32 datasize, u16 peer_id);
- ToClientCommand getCommand() { return m_command; }
-
-private:
- ToClientCommand m_command;
-};
-
-#endif
+++ /dev/null
-/*
-Minetest
-Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
-Copyright (C) 2015 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation; either version 2.1 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#include "toserverpacket.h"
-#include "util/serialize.h"
-
-ToServerPacket::ToServerPacket(u8 *data, u32 datasize, u16 peer_id):
-NetworkPacket(data, datasize, peer_id)
-{
- m_command = (ToServerCommand)readU16(&data[0]);
-}
+++ /dev/null
-/*
-Minetest
-Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
-Copyright (C) 2015 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation; either version 2.1 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License along
-with this program; if not, write to the Free Software Foundation, Inc.,
-51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#ifndef TOSERVERPACKET_HEADER
-#define TOSERVERPACKET_HEADER
-
-#include "util/numeric.h"
-#include "networkprotocol.h"
-#include "networkpacket.h"
-
-class ToServerPacket: public NetworkPacket
-{
-public:
- ToServerPacket(u8 *data, u32 datasize, u16 peer_id);
- ToServerCommand getCommand() { return m_command; }
-
-private:
- ToServerCommand m_command;
-};
-
-#endif
#include "mods.h"
#include "sha1.h"
#include "base64.h"
-#include "tool.h"
#include "sound.h" // dummySoundManager
#include "event_manager.h"
#include "hex.h"
#include "serverlist.h"
#include "util/string.h"
-#include "util/pointedthing.h"
#include "util/mathconstants.h"
#include "rollback.h"
#include "util/serialize.h"
/*
Send player inventories if necessary
*/
- if(playersao->m_moved){
+ if(playersao->m_moved) {
SendMovePlayer(*i);
playersao->m_moved = false;
}
- if(playersao->m_inventory_not_sent){
+ if(playersao->m_inventory_not_sent) {
UpdateCrafting(*i);
SendInventory(*i);
}
obj->m_known_by_count++;
}
- // Send packet
- SharedBuffer<u8> reply(2 + data_buffer.size());
- writeU16(&reply[0], TOCLIENT_ACTIVE_OBJECT_REMOVE_ADD);
- memcpy((char*)&reply[2], data_buffer.c_str(),
- data_buffer.size());
- // Send as reliable
- m_clients.send(client->peer_id, 0, reply, true);
-
- verbosestream<<"Server: Sent object remove/add: "
- <<removed_objects.size()<<" removed, "
- <<added_objects.size()<<" added, "
- <<"packet size is "<<reply.getSize()<<std::endl;
- }
- m_clients.Unlock();
-#if 0
- /*
- Collect a list of all the objects known by the clients
- and report it back to the environment.
- */
-
- core::map<u16, bool> all_known_objects;
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_ACTIVE_OBJECT_REMOVE_ADD, 0, client->peer_id);
+ pkt->putRawString(data_buffer.c_str(), data_buffer.size());
- for(core::map<u16, RemoteClient*>::Iterator
- i = m_clients.getIterator();
- i.atEnd() == false; i++)
- {
- RemoteClient *client = i.getNode()->getValue();
- // Go through all known objects of client
- for(core::map<u16, bool>::Iterator
- i = client->m_known_objects.getIterator();
- i.atEnd()==false; i++)
- {
- u16 id = i.getNode()->getKey();
- all_known_objects[id] = true;
- }
- }
- m_env->setKnownActiveObjects(whatever);
-#endif
+ verbosestream << "Server: Sent object remove/add: "
+ << removed_objects.size() << " removed, "
+ << added_objects.size() << " added, "
+ << "packet size is " << pkt->getSize() << std::endl;
+ Send(pkt);
+ }
+ m_clients.Unlock();
}
/*
reliable_data and unreliable_data are now ready.
Send them.
*/
- if(reliable_data.size() > 0)
- {
- SharedBuffer<u8> reply(2 + reliable_data.size());
- writeU16(&reply[0], TOCLIENT_ACTIVE_OBJECT_MESSAGES);
- memcpy((char*)&reply[2], reliable_data.c_str(),
- reliable_data.size());
- // Send as reliable
- m_clients.send(client->peer_id, 0, reply, true);
- }
- if(unreliable_data.size() > 0)
- {
- SharedBuffer<u8> reply(2 + unreliable_data.size());
- writeU16(&reply[0], TOCLIENT_ACTIVE_OBJECT_MESSAGES);
- memcpy((char*)&reply[2], unreliable_data.c_str(),
- unreliable_data.size());
- // Send as unreliable
- m_clients.send(client->peer_id, 1, reply, false);
+ if(reliable_data.size() > 0) {
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_ACTIVE_OBJECT_MESSAGES,
+ 0, client->peer_id);
+
+ pkt->putRawString(reliable_data.c_str(), reliable_data.size());
+ Send(pkt);
}
- /*if(reliable_data.size() > 0 || unreliable_data.size() > 0)
- {
- infostream<<"Server: Size of object message data: "
- <<"reliable: "<<reliable_data.size()
- <<", unreliable: "<<unreliable_data.size()
- <<std::endl;
- }*/
+ if(unreliable_data.size() > 0) {
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_ACTIVE_OBJECT_MESSAGES,
+ 0, client->peer_id);
+
+ pkt->putRawString(unreliable_data.c_str(), unreliable_data.size());
+ Send(pkt);
+ }
}
m_clients.Unlock();
L"Try reconnecting or updating your client");
}
catch(con::PeerNotFoundException &e) {
- // Do nothing
- }
-}
-
-PlayerSAO* Server::StageTwoClientInit(u16 peer_id)
-{
- std::string playername = "";
- PlayerSAO *playersao = NULL;
- m_clients.Lock();
- try {
- RemoteClient* client = m_clients.lockedGetClientNoEx(peer_id, CS_InitDone);
- if (client != NULL) {
- playername = client->getName();
- playersao = emergePlayer(playername.c_str(), peer_id);
- }
- } catch (std::exception &e) {
- m_clients.Unlock();
- throw;
- }
- m_clients.Unlock();
-
- RemotePlayer *player =
- static_cast<RemotePlayer*>(m_env->getPlayer(peer_id));
-
- // If failed, cancel
- if((playersao == NULL) || (player == NULL)) {
- if(player && player->peer_id != 0) {
- errorstream<<"Server: "<<playername<<": Failed to emerge player"
- <<" (player allocated to an another client)"<<std::endl;
- DenyAccess(peer_id, L"Another client is connected with this "
- L"name. If your client closed unexpectedly, try again in "
- L"a minute.");
- } else {
- errorstream<<"Server: "<<playername<<": Failed to emerge player"
- <<std::endl;
- DenyAccess(peer_id, L"Could not allocate player.");
- }
- return NULL;
- }
-
- /*
- Send complete position information
- */
- SendMovePlayer(peer_id);
-
- // Send privileges
- SendPlayerPrivileges(peer_id);
-
- // Send inventory formspec
- SendPlayerInventoryFormspec(peer_id);
-
- // Send inventory
- UpdateCrafting(peer_id);
- SendInventory(peer_id);
-
- // Send HP
- if(g_settings->getBool("enable_damage"))
- SendPlayerHP(peer_id);
-
- // Send Breath
- SendPlayerBreath(peer_id);
-
- // Show death screen if necessary
- if(player->hp == 0)
- SendDeathscreen(peer_id, false, v3f(0,0,0));
-
- // Note things in chat if not in simple singleplayer mode
- if(!m_simple_singleplayer_mode) {
- // Send information about server to player in chat
- SendChatMessage(peer_id, getStatusString());
-
- // Send information about joining in chat
- {
- std::wstring name = L"unknown";
- Player *player = m_env->getPlayer(peer_id);
- if(player != NULL)
- name = narrow_to_wide(player->getName());
-
- std::wstring message;
- message += L"*** ";
- message += name;
- message += L" joined the game.";
- SendChatMessage(PEER_ID_INEXISTENT,message);
- }
- }
- Address addr = getPeerAddress(player->peer_id);
- std::string ip_str = addr.serializeString();
- actionstream<<player->getName() <<" [" << ip_str << "] joins game. " << std::endl;
- /*
- Print out action
- */
- {
- std::vector<std::string> names = m_clients.getPlayerNames();
-
- actionstream<<player->getName() <<" joins game. List of players: ";
-
- for (std::vector<std::string>::iterator i = names.begin();
- i != names.end(); i++) {
- actionstream << *i << " ";
- }
-
- actionstream << player->getName() <<std::endl;
- }
- return playersao;
-}
-
-void Server::handleCommand_Deprecated(ToServerPacket* pkt)
-{
- infostream << "Server: " << toServerCommandTable[pkt->getCommand()].name
- << " not supported anymore" << std::endl;
-}
-
-void Server::handleCommand_Init(ToServerPacket* pkt)
-{
- // [0] u16 TOSERVER_INIT
- // [2] u8 SER_FMT_VER_HIGHEST_READ
- // [3] u8[20] player_name
- // [23] u8[28] password <--- can be sent without this, from old versions
-
- if(pkt->getSize() < 1+PLAYERNAME_SIZE)
- return;
-
- RemoteClient* client = getClient(pkt->getPeerId(), CS_Created);
-
- std::string addr_s;
- try {
- Address address = getPeerAddress(pkt->getPeerId());
- addr_s = address.serializeString();
- }
- catch (con::PeerNotFoundException &e) {
- /*
- * no peer for this packet found
- * most common reason is peer timeout, e.g. peer didn't
- * respond for some time, your server was overloaded or
- * things like that.
- */
- infostream << "Server::ProcessData(): Cancelling: peer "
- << pkt->getPeerId() << " not found" << std::endl;
- return;
- }
-
- // If net_proto_version is set, this client has already been handled
- if(client->getState() > CS_Created) {
- verbosestream << "Server: Ignoring multiple TOSERVER_INITs from "
- << addr_s << " (peer_id=" << pkt->getPeerId() << ")" << std::endl;
- return;
- }
-
- verbosestream << "Server: Got TOSERVER_INIT from " << addr_s << " (peer_id="
- << pkt->getPeerId() << ")" << std::endl;
-
- // Do not allow multiple players in simple singleplayer mode.
- // This isn't a perfect way to do it, but will suffice for now
- if(m_simple_singleplayer_mode && m_clients.getClientIDs().size() > 1){
- infostream << "Server: Not allowing another client (" << addr_s
- << ") to connect in simple singleplayer mode" << std::endl;
- DenyAccess(pkt->getPeerId(), L"Running in simple singleplayer mode.");
- return;
- }
-
- // First byte after command is maximum supported
- // serialization version
- u8 client_max;
-
- *pkt >> client_max;
-
- u8 our_max = SER_FMT_VER_HIGHEST_READ;
- // Use the highest version supported by both
- int deployed = std::min(client_max, our_max);
- // If it's lower than the lowest supported, give up.
- if(deployed < SER_FMT_CLIENT_VER_LOWEST)
- deployed = SER_FMT_VER_INVALID;
-
- if(deployed == SER_FMT_VER_INVALID) {
- actionstream << "Server: A mismatched client tried to connect from "
- << addr_s << std::endl;
- infostream<<"Server: Cannot negotiate serialization version with "
- << addr_s << std::endl;
- DenyAccess(pkt->getPeerId(), std::wstring(
- L"Your client's version is not supported.\n"
- L"Server version is ")
- + narrow_to_wide(minetest_version_simple) + L"."
- );
- return;
- }
-
- client->setPendingSerializationVersion(deployed);
-
- /*
- Read and check network protocol version
- */
-
- u16 min_net_proto_version = 0;
- if(pkt->getSize() >= 1 + PLAYERNAME_SIZE + PASSWORD_SIZE + 2)
- min_net_proto_version = pkt->getU16(1 + PLAYERNAME_SIZE + PASSWORD_SIZE);
-
- // Use same version as minimum and maximum if maximum version field
- // doesn't exist (backwards compatibility)
- u16 max_net_proto_version = min_net_proto_version;
- if(pkt->getSize() >= 1 + PLAYERNAME_SIZE + PASSWORD_SIZE + 2 + 2)
- max_net_proto_version = pkt->getU16(1 + PLAYERNAME_SIZE + PASSWORD_SIZE + 2);
-
- // Start with client's maximum version
- u16 net_proto_version = max_net_proto_version;
-
- // Figure out a working version if it is possible at all
- if(max_net_proto_version >= SERVER_PROTOCOL_VERSION_MIN ||
- min_net_proto_version <= SERVER_PROTOCOL_VERSION_MAX) {
- // If maximum is larger than our maximum, go with our maximum
- if(max_net_proto_version > SERVER_PROTOCOL_VERSION_MAX)
- net_proto_version = SERVER_PROTOCOL_VERSION_MAX;
- // Else go with client's maximum
- else
- net_proto_version = max_net_proto_version;
- }
-
- verbosestream << "Server: " << addr_s << ": Protocol version: min: "
- << min_net_proto_version << ", max: " << max_net_proto_version
- << ", chosen: " << net_proto_version << std::endl;
-
- client->net_proto_version = net_proto_version;
-
- if(net_proto_version < SERVER_PROTOCOL_VERSION_MIN ||
- net_proto_version > SERVER_PROTOCOL_VERSION_MAX) {
- actionstream << "Server: A mismatched client tried to connect from "
- << addr_s << std::endl;
- DenyAccess(pkt->getPeerId(), std::wstring(
- L"Your client's version is not supported.\n"
- L"Server version is ")
- + narrow_to_wide(minetest_version_simple) + L",\n"
- + L"server's PROTOCOL_VERSION is "
- + narrow_to_wide(itos(SERVER_PROTOCOL_VERSION_MIN))
- + L"..."
- + narrow_to_wide(itos(SERVER_PROTOCOL_VERSION_MAX))
- + L", client's PROTOCOL_VERSION is "
- + narrow_to_wide(itos(min_net_proto_version))
- + L"..."
- + narrow_to_wide(itos(max_net_proto_version))
- );
- return;
- }
-
- if(g_settings->getBool("strict_protocol_version_checking")) {
- if(net_proto_version != LATEST_PROTOCOL_VERSION) {
- actionstream << "Server: A mismatched (strict) client tried to "
- << "connect from " << addr_s << std::endl;
- DenyAccess(pkt->getPeerId(), std::wstring(
- L"Your client's version is not supported.\n"
- L"Server version is ")
- + narrow_to_wide(minetest_version_simple) + L",\n"
- + L"server's PROTOCOL_VERSION (strict) is "
- + narrow_to_wide(itos(LATEST_PROTOCOL_VERSION))
- + L", client's PROTOCOL_VERSION is "
- + narrow_to_wide(itos(min_net_proto_version))
- + L"..."
- + narrow_to_wide(itos(max_net_proto_version))
- );
- return;
- }
- }
-
- /*
- Set up player
- */
- char playername[PLAYERNAME_SIZE];
- unsigned int playername_length = 0;
- for (; playername_length < PLAYERNAME_SIZE; playername_length++ ) {
- playername[playername_length] = pkt->getChar(1+playername_length);
- if (pkt->getChar(1+playername_length) == 0)
- break;
- }
-
- if (playername_length == PLAYERNAME_SIZE) {
- actionstream << "Server: Player with name exceeding max length "
- << "tried to connect from " << addr_s << std::endl;
- DenyAccess(pkt->getPeerId(), L"Name too long");
- return;
- }
-
-
- if(playername[0]=='\0') {
- actionstream << "Server: Player with an empty name "
- << "tried to connect from " << addr_s << std::endl;
- DenyAccess(pkt->getPeerId(), L"Empty name");
- return;
- }
-
- if(string_allowed(playername, PLAYERNAME_ALLOWED_CHARS) == false) {
- actionstream << "Server: Player with an invalid name "
- << "tried to connect from " << addr_s << std::endl;
- DenyAccess(pkt->getPeerId(), L"Name contains unallowed characters");
- return;
- }
-
- if(!isSingleplayer() && strcasecmp(playername, "singleplayer") == 0) {
- actionstream << "Server: Player with the name \"singleplayer\" "
- << "tried to connect from " << addr_s << std::endl;
- DenyAccess(pkt->getPeerId(), L"Name is not allowed");
- return;
- }
-
- {
- std::string reason;
- if(m_script->on_prejoinplayer(playername, addr_s, reason)) {
- actionstream << "Server: Player with the name \"" << playername << "\" "
- << "tried to connect from " << addr_s << " "
- << "but it was disallowed for the following reason: "
- << reason << std::endl;
- DenyAccess(pkt->getPeerId(), narrow_to_wide(reason.c_str()));
- return;
- }
- }
-
- infostream<<"Server: New connection: \""<<playername<<"\" from "
- <<addr_s<<" (peer_id="<<pkt->getPeerId()<<")"<<std::endl;
-
- // Get password
- char given_password[PASSWORD_SIZE];
- if(pkt->getSize() < 1 + PLAYERNAME_SIZE + PASSWORD_SIZE) {
- // old version - assume blank password
- given_password[0] = 0;
- }
- else {
- for(u32 i=0; i<PASSWORD_SIZE - 1; i++) {
- given_password[i] = pkt->getChar(21 + i);
- }
- given_password[PASSWORD_SIZE - 1] = 0;
- }
-
- if(!base64_is_valid(given_password)){
- actionstream << "Server: " << playername
- << " supplied invalid password hash" << std::endl;
- DenyAccess(pkt->getPeerId(), L"Invalid password hash");
- return;
- }
-
- // Enforce user limit.
- // Don't enforce for users that have some admin right
- if(m_clients.getClientIDs(CS_Created).size() >= g_settings->getU16("max_users") &&
- !checkPriv(playername, "server") &&
- !checkPriv(playername, "ban") &&
- !checkPriv(playername, "privs") &&
- !checkPriv(playername, "password") &&
- playername != g_settings->get("name")) {
- actionstream << "Server: " << playername << " tried to join, but there"
- << " are already max_users="
- << g_settings->getU16("max_users") << " players." << std::endl;
- DenyAccess(pkt->getPeerId(), L"Too many users.");
- return;
- }
-
- std::string checkpwd; // Password hash to check against
- bool has_auth = m_script->getAuth(playername, &checkpwd, NULL);
-
- // If no authentication info exists for user, create it
- if(!has_auth) {
- if(!isSingleplayer() &&
- g_settings->getBool("disallow_empty_password") &&
- std::string(given_password) == "") {
- actionstream << "Server: " << playername
- << " supplied empty password" << std::endl;
- DenyAccess(pkt->getPeerId(), L"Empty passwords are "
- L"disallowed. Set a password and try again.");
- return;
- }
- std::wstring raw_default_password =
- narrow_to_wide(g_settings->get("default_password"));
- std::string initial_password =
- translatePassword(playername, raw_default_password);
-
- // If default_password is empty, allow any initial password
- if (raw_default_password.length() == 0)
- initial_password = given_password;
-
- m_script->createAuth(playername, initial_password);
- }
-
- has_auth = m_script->getAuth(playername, &checkpwd, NULL);
-
- if(!has_auth){
- actionstream << "Server: " << playername << " cannot be authenticated"
- << " (auth handler does not work?)" << std::endl;
- DenyAccess(pkt->getPeerId(), L"Not allowed to login");
- return;
- }
-
- if(given_password != checkpwd) {
- actionstream << "Server: " << playername << " supplied wrong password"
- << std::endl;
- DenyAccess(pkt->getPeerId(), L"Wrong password");
- return;
- }
-
- RemotePlayer *player =
- static_cast<RemotePlayer*>(m_env->getPlayer(playername));
-
- if(player && player->peer_id != 0) {
- errorstream << "Server: " << playername << ": Failed to emerge player"
- << " (player allocated to an another client)" << std::endl;
- DenyAccess(pkt->getPeerId(), L"Another client is connected with this "
- L"name. If your client closed unexpectedly, try again in "
- L"a minute.");
- }
-
- m_clients.setPlayerName(pkt->getPeerId(), playername);
-
- /*
- Answer with a TOCLIENT_INIT
- */
- {
- SharedBuffer<u8> reply(2 + 1 + 6 + 8 + 4);
- writeU16(&reply[0], TOCLIENT_INIT);
- writeU8(&reply[2], deployed);
- //send dummy pos for legacy reasons only
- writeV3S16(&reply[2 + 1], floatToInt(v3f(0,0,0), BS));
- writeU64(&reply[2 + 1 + 6], m_env->getServerMap().getSeed());
- writeF1000(&reply[2 + 1 + 6 + 8], g_settings->getFloat("dedicated_server_step"));
-
- // Send as reliable
- m_clients.send(pkt->getPeerId(), 0, reply, true);
- m_clients.event(pkt->getPeerId(), CSE_Init);
- }
-}
-
-void Server::handleCommand_Init2(ToServerPacket* pkt)
-{
- verbosestream << "Server: Got TOSERVER_INIT2 from "
- << pkt->getPeerId() << std::endl;
-
- m_clients.event(pkt->getPeerId(), CSE_GotInit2);
- u16 protocol_version = m_clients.getProtocolVersion(pkt->getPeerId());
-
- ///// begin compatibility code
- PlayerSAO* playersao = NULL;
- if (protocol_version <= 22) {
- playersao = StageTwoClientInit(pkt->getPeerId());
-
- if (playersao == NULL) {
- errorstream
- << "TOSERVER_INIT2 stage 2 client init failed for peer "
- << pkt->getPeerId() << std::endl;
- return;
- }
- }
- ///// end compatibility code
-
- /*
- Send some initialization data
- */
-
- infostream << "Server: Sending content to "
- << getPlayerName(pkt->getPeerId()) << std::endl;
-
- // Send player movement settings
- SendMovement(pkt->getPeerId());
-
- // Send item definitions
- SendItemDef(pkt->getPeerId(), m_itemdef, protocol_version);
-
- // Send node definitions
- SendNodeDef(pkt->getPeerId(), m_nodedef, protocol_version);
-
- m_clients.event(pkt->getPeerId(), CSE_SetDefinitionsSent);
-
- // Send media announcement
- sendMediaAnnouncement(pkt->getPeerId());
-
- // Send detached inventories
- sendDetachedInventories(pkt->getPeerId());
-
- // Send time of day
- u16 time = m_env->getTimeOfDay();
- float time_speed = g_settings->getFloat("time_speed");
- SendTimeOfDay(pkt->getPeerId(), time, time_speed);
-
- ///// begin compatibility code
- if (protocol_version <= 22) {
- m_clients.event(pkt->getPeerId(), CSE_SetClientReady);
- m_script->on_joinplayer(playersao);
- }
- ///// end compatibility code
-
- // Warnings about protocol version can be issued here
- if(getClient(pkt->getPeerId())->net_proto_version < LATEST_PROTOCOL_VERSION) {
- SendChatMessage(pkt->getPeerId(), L"# Server: WARNING: YOUR CLIENT'S "
- L"VERSION MAY NOT BE FULLY COMPATIBLE WITH THIS SERVER!");
- }
-}
-
-void Server::handleCommand_RequestMedia(ToServerPacket* pkt)
-{
- std::list<std::string> tosend;
- u16 numfiles;
-
- *pkt >> numfiles;
-
- infostream << "Sending " << numfiles << " files to "
- << getPlayerName(pkt->getPeerId()) << std::endl;
- verbosestream << "TOSERVER_REQUEST_MEDIA: " << std::endl;
-
- for(int i = 0; i < numfiles; i++) {
- std::string name;
-
- *pkt >> name;
-
- tosend.push_back(name);
- verbosestream << "TOSERVER_REQUEST_MEDIA: requested file "
- << name << std::endl;
- }
-
- sendRequestedMedia(pkt->getPeerId(), tosend);
-}
-
-void Server::handleCommand_ReceivedMedia(ToServerPacket* pkt)
-{
-}
-
-void Server::handleCommand_ClientReady(ToServerPacket* pkt)
-{
- u16 peer_id = pkt->getPeerId();
- u16 peer_proto_ver = getClient(peer_id, CS_InitDone)->net_proto_version;
-
- // clients <= protocol version 22 did not send ready message,
- // they're already initialized
- if (peer_proto_ver <= 22) {
- infostream << "Client sent message not expected by a "
- << "client using protocol version <= 22,"
- << "disconnecing peer_id: " << peer_id << std::endl;
- m_con.DisconnectPeer(peer_id);
- return;
- }
-
- PlayerSAO* playersao = StageTwoClientInit(peer_id);
-
- if (playersao == NULL) {
- errorstream
- << "TOSERVER_CLIENT_READY stage 2 client init failed for peer_id: "
- << peer_id << std::endl;
- m_con.DisconnectPeer(peer_id);
- return;
- }
-
-
- if(pkt->getSize() < 8) {
- errorstream
- << "TOSERVER_CLIENT_READY client sent inconsistent data, disconnecting peer_id: "
- << peer_id << std::endl;
- m_con.DisconnectPeer(peer_id);
- return;
- }
-
- u8 major_ver, minor_ver, patch_ver;
- *pkt >> major_ver >> minor_ver >> patch_ver;
-
- m_clients.setClientVersion(
- peer_id, major_ver, minor_ver, patch_ver,
- std::string(pkt->getString(6),(u16) pkt->getU8(4)));
-
- m_clients.event(peer_id, CSE_SetClientReady);
- m_script->on_joinplayer(playersao);
-}
-
-void Server::handleCommand_GotBlocks(ToServerPacket* pkt)
-{
- if(pkt->getSize() < 1)
- return;
-
- /*
- [0] u16 command
- [2] u8 count
- [3] v3s16 pos_0
- [3+6] v3s16 pos_1
- ...
- */
-
- u8 count;
- *pkt >> count;
-
- RemoteClient *client = getClient(pkt->getPeerId());
-
- for(u16 i=0; i<count; i++) {
- if((s16)pkt->getSize() < 1 + (i + 1) * 6)
- throw con::InvalidIncomingDataException
- ("GOTBLOCKS length is too short");
- v3s16 p;
-
- *pkt >> p;
-
- client->GotBlock(p);
- }
-}
-
-void Server::handleCommand_PlayerPos(ToServerPacket* pkt)
-{
- if(pkt->getSize() < 12 + 12 + 4 + 4)
- return;
-
- v3s32 ps, ss;
- s32 f32pitch, f32yaw;
-
- *pkt >> ps;
- *pkt >> ss;
- *pkt >> f32pitch;
- *pkt >> f32yaw;
-
- f32 pitch = (f32)f32pitch / 100.0;
- f32 yaw = (f32)f32yaw / 100.0;
- u32 keyPressed = 0;
-
- if(pkt->getSize() >= 12 + 12 + 4 + 4 + 4)
- *pkt >> keyPressed;
-
- v3f position((f32)ps.X / 100.0, (f32)ps.Y / 100.0, (f32)ps.Z / 100.0);
- v3f speed((f32)ss.X / 100.0, (f32)ss.Y / 100.0, (f32)ss.Z / 100.0);
- pitch = wrapDegrees(pitch);
- yaw = wrapDegrees(yaw);
-
- Player *player = m_env->getPlayer(pkt->getPeerId());
- if(player == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
-
- PlayerSAO *playersao = player->getPlayerSAO();
- if(playersao == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player object for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
-
- player->setPosition(position);
- player->setSpeed(speed);
- player->setPitch(pitch);
- player->setYaw(yaw);
- player->keyPressed=keyPressed;
- player->control.up = (bool)(keyPressed & 1);
- player->control.down = (bool)(keyPressed & 2);
- player->control.left = (bool)(keyPressed & 4);
- player->control.right = (bool)(keyPressed & 8);
- player->control.jump = (bool)(keyPressed & 16);
- player->control.aux1 = (bool)(keyPressed & 32);
- player->control.sneak = (bool)(keyPressed & 64);
- player->control.LMB = (bool)(keyPressed & 128);
- player->control.RMB = (bool)(keyPressed & 256);
-
- bool cheated = playersao->checkMovementCheat();
- if(cheated) {
- // Call callbacks
- m_script->on_cheat(playersao, "moved_too_fast");
- }
-}
-
-void Server::handleCommand_DeletedBlocks(ToServerPacket* pkt)
-{
- if(pkt->getSize() < 1)
- return;
-
- /*
- [0] u16 command
- [2] u8 count
- [3] v3s16 pos_0
- [3+6] v3s16 pos_1
- ...
- */
-
- u8 count;
- *pkt >> count;
-
- RemoteClient *client = getClient(pkt->getPeerId());
-
- for(u16 i=0; i<count; i++) {
- if((s16)pkt->getSize() < 1 + (i + 1) * 6)
- throw con::InvalidIncomingDataException
- ("DELETEDBLOCKS length is too short");
- v3s16 p;
- *pkt >> p;
-
- client->SetBlockNotSent(p);
- }
-}
-
-void Server::handleCommand_InventoryAction(ToServerPacket* pkt)
-{
- Player *player = m_env->getPlayer(pkt->getPeerId());
- if(player == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
-
- PlayerSAO *playersao = player->getPlayerSAO();
- if(playersao == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player object for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
-
- // Strip command and create a stream
- std::string datastring(pkt->getString(0), pkt->getSize());
- verbosestream << "TOSERVER_INVENTORY_ACTION: data=" << datastring
- << std::endl;
- std::istringstream is(datastring, std::ios_base::binary);
- // Create an action
- InventoryAction *a = InventoryAction::deSerialize(is);
- if(a == NULL) {
- infostream << "TOSERVER_INVENTORY_ACTION: "
- << "InventoryAction::deSerialize() returned NULL"
- << std::endl;
- return;
- }
-
- // If something goes wrong, this player is to blame
- RollbackScopeActor rollback_scope(m_rollback,
- std::string("player:")+player->getName());
-
- /*
- Note: Always set inventory not sent, to repair cases
- where the client made a bad prediction.
- */
-
- /*
- Handle restrictions and special cases of the move action
- */
- if(a->getType() == IACTION_MOVE) {
- IMoveAction *ma = (IMoveAction*)a;
-
- ma->from_inv.applyCurrentPlayer(player->getName());
- ma->to_inv.applyCurrentPlayer(player->getName());
-
- setInventoryModified(ma->from_inv);
- setInventoryModified(ma->to_inv);
-
- bool from_inv_is_current_player =
- (ma->from_inv.type == InventoryLocation::PLAYER) &&
- (ma->from_inv.name == player->getName());
-
- bool to_inv_is_current_player =
- (ma->to_inv.type == InventoryLocation::PLAYER) &&
- (ma->to_inv.name == player->getName());
-
- /*
- Disable moving items out of craftpreview
- */
- if(ma->from_list == "craftpreview") {
- infostream << "Ignoring IMoveAction from "
- << (ma->from_inv.dump()) << ":" << ma->from_list
- << " to " << (ma->to_inv.dump()) << ":" << ma->to_list
- << " because src is " << ma->from_list << std::endl;
- delete a;
- return;
- }
-
- /*
- Disable moving items into craftresult and craftpreview
- */
- if(ma->to_list == "craftpreview" || ma->to_list == "craftresult") {
- infostream << "Ignoring IMoveAction from "
- << (ma->from_inv.dump()) << ":" << ma->from_list
- << " to " << (ma->to_inv.dump()) << ":" << ma->to_list
- << " because dst is " << ma->to_list << std::endl;
- delete a;
- return;
- }
-
- // Disallow moving items in elsewhere than player's inventory
- // if not allowed to interact
- if(!checkPriv(player->getName(), "interact") &&
- (!from_inv_is_current_player ||
- !to_inv_is_current_player)) {
- infostream << "Cannot move outside of player's inventory: "
- << "No interact privilege" << std::endl;
- delete a;
- return;
- }
- }
- /*
- Handle restrictions and special cases of the drop action
- */
- else if(a->getType() == IACTION_DROP) {
- IDropAction *da = (IDropAction*)a;
-
- da->from_inv.applyCurrentPlayer(player->getName());
-
- setInventoryModified(da->from_inv);
-
- /*
- Disable dropping items out of craftpreview
- */
- if(da->from_list == "craftpreview") {
- infostream << "Ignoring IDropAction from "
- << (da->from_inv.dump()) << ":" << da->from_list
- << " because src is " << da->from_list << std::endl;
- delete a;
- return;
- }
-
- // Disallow dropping items if not allowed to interact
- if(!checkPriv(player->getName(), "interact")) {
- delete a;
- return;
- }
- }
- /*
- Handle restrictions and special cases of the craft action
- */
- else if(a->getType() == IACTION_CRAFT) {
- ICraftAction *ca = (ICraftAction*)a;
-
- ca->craft_inv.applyCurrentPlayer(player->getName());
-
- setInventoryModified(ca->craft_inv);
-
- //bool craft_inv_is_current_player =
- // (ca->craft_inv.type == InventoryLocation::PLAYER) &&
- // (ca->craft_inv.name == player->getName());
-
- // Disallow crafting if not allowed to interact
- if(!checkPriv(player->getName(), "interact")) {
- infostream << "Cannot craft: "
- << "No interact privilege" << std::endl;
- delete a;
- return;
- }
- }
-
- // Do the action
- a->apply(this, playersao, this);
- // Eat the action
- delete a;
-}
-
-void Server::handleCommand_ChatMessage(ToServerPacket* pkt)
-{
- /*
- u16 command
- u16 length
- wstring message
- */
- u16 len;
- *pkt >> len;
-
- std::wstring message;
- for(u16 i=0; i<len; i++) {
- u16 tmp_wchar;
- *pkt >> tmp_wchar;
-
- message += (wchar_t)tmp_wchar;
- }
-
- Player *player = m_env->getPlayer(pkt->getPeerId());
- if(player == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
-
- // If something goes wrong, this player is to blame
- RollbackScopeActor rollback_scope(m_rollback,
- std::string("player:")+player->getName());
-
- // Get player name of this client
- std::wstring name = narrow_to_wide(player->getName());
-
- // Run script hook
- bool ate = m_script->on_chat_message(player->getName(),
- wide_to_narrow(message));
- // If script ate the message, don't proceed
- if(ate)
- return;
-
- // Line to send to players
- std::wstring line;
- // Whether to send to the player that sent the line
- bool send_to_sender_only = false;
-
- // Commands are implemented in Lua, so only catch invalid
- // commands that were not "eaten" and send an error back
- if(message[0] == L'/') {
- message = message.substr(1);
- send_to_sender_only = true;
- if(message.length() == 0)
- line += L"-!- Empty command";
- else
- line += L"-!- Invalid command: " + str_split(message, L' ')[0];
- }
- else {
- if(checkPriv(player->getName(), "shout")) {
- line += L"<";
- line += name;
- line += L"> ";
- line += message;
- } else {
- line += L"-!- You don't have permission to shout.";
- send_to_sender_only = true;
- }
- }
-
- if(line != L"")
- {
- /*
- Send the message to sender
- */
- if (send_to_sender_only) {
- SendChatMessage(pkt->getPeerId(), line);
- }
- /*
- Send the message to others
- */
- else {
- actionstream << "CHAT: " << wide_to_narrow(line)<<std::endl;
-
- std::list<u16> clients = m_clients.getClientIDs();
-
- for(std::list<u16>::iterator
- i = clients.begin();
- i != clients.end(); ++i) {
- if (*i != pkt->getPeerId())
- SendChatMessage(*i, line);
- }
- }
- }
-}
-
-void Server::handleCommand_Damage(ToServerPacket* pkt)
-{
- u8 damage;
-
- *pkt >> damage;
-
- Player *player = m_env->getPlayer(pkt->getPeerId());
- if(player == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
-
- PlayerSAO *playersao = player->getPlayerSAO();
- if(playersao == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player object for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
-
- if(g_settings->getBool("enable_damage")) {
- actionstream << player->getName() << " damaged by "
- << (int)damage << " hp at " << PP(player->getPosition() / BS)
- << std::endl;
-
- playersao->setHP(playersao->getHP() - damage);
-
- if(playersao->getHP() == 0 && playersao->m_hp_not_sent)
- DiePlayer(pkt->getPeerId());
-
- if(playersao->m_hp_not_sent)
- SendPlayerHP(pkt->getPeerId());
- }
-}
-
-void Server::handleCommand_Breath(ToServerPacket* pkt)
-{
- u16 breath;
-
- *pkt >> breath;
-
- Player *player = m_env->getPlayer(pkt->getPeerId());
- if(player == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
-
- PlayerSAO *playersao = player->getPlayerSAO();
- if(playersao == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player object for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
-
- playersao->setBreath(breath);
- m_script->player_event(playersao,"breath_changed");
-}
-
-void Server::handleCommand_Password(ToServerPacket* pkt)
-{
- /*
- [0] u16 TOSERVER_PASSWORD
- [2] u8[28] old password
- [30] u8[28] new password
- */
-
- if(pkt->getSize() != PASSWORD_SIZE * 2)
- return;
-
- std::string oldpwd;
- std::string newpwd;
-
- for(u32 i=0; i<PASSWORD_SIZE - 1; i++) {
- char c = pkt->getChar(i);
- if(c == 0)
- break;
- oldpwd += c;
- }
-
- for(u32 i=0; i<PASSWORD_SIZE - 1; i++) {
- char c = pkt->getChar(PASSWORD_SIZE + i);
- if(c == 0)
- break;
- newpwd += c;
- }
-
- Player *player = m_env->getPlayer(pkt->getPeerId());
- if(player == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
-
- if(!base64_is_valid(newpwd)) {
- infostream<<"Server: " << player->getName() <<
- " supplied invalid password hash" << std::endl;
- // Wrong old password supplied!!
- SendChatMessage(pkt->getPeerId(), L"Invalid new password hash supplied. Password NOT changed.");
- return;
- }
-
- infostream << "Server: Client requests a password change from "
- << "'" << oldpwd << "' to '" << newpwd << "'" << std::endl;
-
- std::string playername = player->getName();
-
- std::string checkpwd;
- m_script->getAuth(playername, &checkpwd, NULL);
-
- if(oldpwd != checkpwd) {
- infostream << "Server: invalid old password" << std::endl;
- // Wrong old password supplied!!
- SendChatMessage(pkt->getPeerId(), L"Invalid old password supplied. Password NOT changed.");
- return;
- }
-
- bool success = m_script->setPassword(playername, newpwd);
- if(success) {
- actionstream << player->getName() << " changes password" << std::endl;
- SendChatMessage(pkt->getPeerId(), L"Password change successful.");
- } else {
- actionstream << player->getName() << " tries to change password but "
- << "it fails" << std::endl;
- SendChatMessage(pkt->getPeerId(), L"Password change failed or inavailable.");
- }
-}
-
-void Server::handleCommand_PlayerItem(ToServerPacket* pkt)
-{
- if (pkt->getSize() < 2)
- return;
-
- Player *player = m_env->getPlayer(pkt->getPeerId());
- if(player == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
-
- PlayerSAO *playersao = player->getPlayerSAO();
- if(playersao == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player object for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
-
- u16 item;
-
- *pkt >> item;
-
- playersao->setWieldIndex(item);
-}
-
-void Server::handleCommand_Respawn(ToServerPacket* pkt)
-{
- Player *player = m_env->getPlayer(pkt->getPeerId());
- if(player == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
-
- if(player->hp != 0 || !g_settings->getBool("enable_damage"))
- return;
-
- RespawnPlayer(pkt->getPeerId());
-
- actionstream<<player->getName()<<" respawns at "
- <<PP(player->getPosition()/BS)<<std::endl;
-
- // ActiveObject is added to environment in AsyncRunStep after
- // the previous addition has been succesfully removed
-}
-
-void Server::handleCommand_Interact(ToServerPacket* pkt)
-{
- std::string datastring(pkt->getString(0), pkt->getSize());
- std::istringstream is(datastring, std::ios_base::binary);
-
- /*
- [0] u16 command
- [2] u8 action
- [3] u16 item
- [5] u32 length of the next item
- [9] serialized PointedThing
- actions:
- 0: start digging (from undersurface) or use
- 1: stop digging (all parameters ignored)
- 2: digging completed
- 3: place block or item (to abovesurface)
- 4: use item
- */
- u8 action = readU8(is);
- u16 item_i = readU16(is);
- std::istringstream tmp_is(deSerializeLongString(is), std::ios::binary);
- PointedThing pointed;
- pointed.deSerialize(tmp_is);
-
- verbosestream << "TOSERVER_INTERACT: action=" << (int)action << ", item="
- << item_i << ", pointed=" << pointed.dump() << std::endl;
-
- Player *player = m_env->getPlayer(pkt->getPeerId());
- if(player == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
-
- PlayerSAO *playersao = player->getPlayerSAO();
- if(playersao == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player object for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
-
- if(player->hp == 0) {
- verbosestream << "TOSERVER_INTERACT: " << player->getName()
- << " tried to interact, but is dead!" << std::endl;
- return;
- }
-
- v3f player_pos = playersao->getLastGoodPosition();
-
- // Update wielded item
- playersao->setWieldIndex(item_i);
-
- // Get pointed to node (undefined if not POINTEDTYPE_NODE)
- v3s16 p_under = pointed.node_undersurface;
- v3s16 p_above = pointed.node_abovesurface;
-
- // Get pointed to object (NULL if not POINTEDTYPE_OBJECT)
- ServerActiveObject *pointed_object = NULL;
- if(pointed.type == POINTEDTHING_OBJECT) {
- pointed_object = m_env->getActiveObject(pointed.object_id);
- if(pointed_object == NULL) {
- verbosestream << "TOSERVER_INTERACT: "
- "pointed object is NULL" << std::endl;
- return;
- }
-
- }
-
- v3f pointed_pos_under = player_pos;
- v3f pointed_pos_above = player_pos;
- if(pointed.type == POINTEDTHING_NODE) {
- pointed_pos_under = intToFloat(p_under, BS);
- pointed_pos_above = intToFloat(p_above, BS);
- }
- else if(pointed.type == POINTEDTHING_OBJECT) {
- pointed_pos_under = pointed_object->getBasePosition();
- pointed_pos_above = pointed_pos_under;
- }
-
- /*
- Check that target is reasonably close
- (only when digging or placing things)
- */
- if(action == 0 || action == 2 || action == 3) {
- float d = player_pos.getDistanceFrom(pointed_pos_under);
- float max_d = BS * 14; // Just some large enough value
- if(d > max_d) {
- actionstream << "Player " << player->getName()
- << " tried to access " << pointed.dump()
- << " from too far: "
- << "d=" << d <<", max_d=" << max_d
- << ". ignoring." << std::endl;
- // Re-send block to revert change on client-side
- RemoteClient *client = getClient(pkt->getPeerId());
- v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
- client->SetBlockNotSent(blockpos);
- // Call callbacks
- m_script->on_cheat(playersao, "interacted_too_far");
- // Do nothing else
- return;
- }
- }
-
- /*
- Make sure the player is allowed to do it
- */
- if(!checkPriv(player->getName(), "interact")) {
- actionstream<<player->getName()<<" attempted to interact with "
- <<pointed.dump()<<" without 'interact' privilege"
- <<std::endl;
- // Re-send block to revert change on client-side
- RemoteClient *client = getClient(pkt->getPeerId());
- // Digging completed -> under
- if(action == 2) {
- v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
- client->SetBlockNotSent(blockpos);
- }
- // Placement -> above
- if(action == 3) {
- v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
- client->SetBlockNotSent(blockpos);
- }
- return;
- }
-
- /*
- If something goes wrong, this player is to blame
- */
- RollbackScopeActor rollback_scope(m_rollback,
- std::string("player:")+player->getName());
-
- /*
- 0: start digging or punch object
- */
- if(action == 0) {
- if(pointed.type == POINTEDTHING_NODE) {
- /*
- NOTE: This can be used in the future to check if
- somebody is cheating, by checking the timing.
- */
- MapNode n(CONTENT_IGNORE);
- bool pos_ok;
- n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
- if (pos_ok)
- n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
-
- if (!pos_ok) {
- infostream << "Server: Not punching: Node not found."
- << " Adding block to emerge queue."
- << std::endl;
- m_emerge->enqueueBlockEmerge(pkt->getPeerId(), getNodeBlockPos(p_above), false);
- }
-
- if(n.getContent() != CONTENT_IGNORE)
- m_script->node_on_punch(p_under, n, playersao, pointed);
- // Cheat prevention
- playersao->noCheatDigStart(p_under);
- }
- else if(pointed.type == POINTEDTHING_OBJECT) {
- // Skip if object has been removed
- if(pointed_object->m_removed)
- return;
-
- actionstream<<player->getName()<<" punches object "
- <<pointed.object_id<<": "
- <<pointed_object->getDescription()<<std::endl;
-
- ItemStack punchitem = playersao->getWieldedItem();
- ToolCapabilities toolcap =
- punchitem.getToolCapabilities(m_itemdef);
- v3f dir = (pointed_object->getBasePosition() -
- (player->getPosition() + player->getEyeOffset())
- ).normalize();
- float time_from_last_punch =
- playersao->resetTimeFromLastPunch();
- pointed_object->punch(dir, &toolcap, playersao,
- time_from_last_punch);
- }
-
- } // action == 0
-
- /*
- 1: stop digging
- */
- else if(action == 1) {
- } // action == 1
-
- /*
- 2: Digging completed
- */
- else if(action == 2) {
- // Only digging of nodes
- if(pointed.type == POINTEDTHING_NODE) {
- bool pos_ok;
- MapNode n = m_env->getMap().getNodeNoEx(p_under, &pos_ok);
- if (!pos_ok) {
- infostream << "Server: Not finishing digging: Node not found."
- << " Adding block to emerge queue."
- << std::endl;
- m_emerge->enqueueBlockEmerge(pkt->getPeerId(), getNodeBlockPos(p_above), false);
- }
-
- /* Cheat prevention */
- bool is_valid_dig = true;
- if(!isSingleplayer() && !g_settings->getBool("disable_anticheat")) {
- v3s16 nocheat_p = playersao->getNoCheatDigPos();
- float nocheat_t = playersao->getNoCheatDigTime();
- playersao->noCheatDigEnd();
- // If player didn't start digging this, ignore dig
- if(nocheat_p != p_under) {
- infostream << "Server: NoCheat: " << player->getName()
- << " started digging "
- << PP(nocheat_p) << " and completed digging "
- << PP(p_under) << "; not digging." << std::endl;
- is_valid_dig = false;
- // Call callbacks
- m_script->on_cheat(playersao, "finished_unknown_dig");
- }
- // Get player's wielded item
- ItemStack playeritem;
- InventoryList *mlist = playersao->getInventory()->getList("main");
- if(mlist != NULL)
- playeritem = mlist->getItem(playersao->getWieldIndex());
- ToolCapabilities playeritem_toolcap =
- playeritem.getToolCapabilities(m_itemdef);
- // Get diggability and expected digging time
- DigParams params = getDigParams(m_nodedef->get(n).groups,
- &playeritem_toolcap);
- // If can't dig, try hand
- if(!params.diggable) {
- const ItemDefinition &hand = m_itemdef->get("");
- const ToolCapabilities *tp = hand.tool_capabilities;
- if(tp)
- params = getDigParams(m_nodedef->get(n).groups, tp);
- }
- // If can't dig, ignore dig
- if(!params.diggable) {
- infostream << "Server: NoCheat: " << player->getName()
- << " completed digging " << PP(p_under)
- << ", which is not diggable with tool. not digging."
- << std::endl;
- is_valid_dig = false;
- // Call callbacks
- m_script->on_cheat(playersao, "dug_unbreakable");
- }
- // Check digging time
- // If already invalidated, we don't have to
- if(!is_valid_dig) {
- // Well not our problem then
- }
- // Clean and long dig
- else if(params.time > 2.0 && nocheat_t * 1.2 > params.time) {
- // All is good, but grab time from pool; don't care if
- // it's actually available
- playersao->getDigPool().grab(params.time);
- }
- // Short or laggy dig
- // Try getting the time from pool
- else if(playersao->getDigPool().grab(params.time)) {
- // All is good
- }
- // Dig not possible
- else {
- infostream << "Server: NoCheat: " << player->getName()
- << " completed digging " << PP(p_under)
- << "too fast; not digging." << std::endl;
- is_valid_dig = false;
- // Call callbacks
- m_script->on_cheat(playersao, "dug_too_fast");
- }
- }
-
- /* Actually dig node */
-
- if(is_valid_dig && n.getContent() != CONTENT_IGNORE)
- m_script->node_on_dig(p_under, n, playersao);
-
- v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
- RemoteClient *client = getClient(pkt->getPeerId());
- // Send unusual result (that is, node not being removed)
- if(m_env->getMap().getNodeNoEx(p_under).getContent() != CONTENT_AIR) {
- // Re-send block to revert change on client-side
- client->SetBlockNotSent(blockpos);
- }
- else {
- client->ResendBlockIfOnWire(blockpos);
- }
- }
- } // action == 2
-
- /*
- 3: place block or right-click object
- */
- else if(action == 3) {
- ItemStack item = playersao->getWieldedItem();
-
- // Reset build time counter
- if(pointed.type == POINTEDTHING_NODE &&
- item.getDefinition(m_itemdef).type == ITEM_NODE)
- getClient(pkt->getPeerId())->m_time_from_building = 0.0;
-
- if(pointed.type == POINTEDTHING_OBJECT) {
- // Right click object
-
- // Skip if object has been removed
- if(pointed_object->m_removed)
- return;
-
- actionstream << player->getName() << " right-clicks object "
- << pointed.object_id << ": "
- << pointed_object->getDescription() << std::endl;
-
- // Do stuff
- pointed_object->rightClick(playersao);
- }
- else if(m_script->item_OnPlace(
- item, playersao, pointed)) {
- // Placement was handled in lua
-
- // Apply returned ItemStack
- playersao->setWieldedItem(item);
- }
-
- // If item has node placement prediction, always send the
- // blocks to make sure the client knows what exactly happened
- RemoteClient *client = getClient(pkt->getPeerId());
- v3s16 blockpos = getNodeBlockPos(floatToInt(pointed_pos_above, BS));
- v3s16 blockpos2 = getNodeBlockPos(floatToInt(pointed_pos_under, BS));
- if(item.getDefinition(m_itemdef).node_placement_prediction != "") {
- client->SetBlockNotSent(blockpos);
- if(blockpos2 != blockpos) {
- client->SetBlockNotSent(blockpos2);
- }
- }
- else {
- client->ResendBlockIfOnWire(blockpos);
- if(blockpos2 != blockpos) {
- client->ResendBlockIfOnWire(blockpos2);
- }
- }
- } // action == 3
-
- /*
- 4: use
- */
- else if(action == 4) {
- ItemStack item = playersao->getWieldedItem();
-
- actionstream << player->getName() << " uses " << item.name
- << ", pointing at " << pointed.dump() << std::endl;
-
- if(m_script->item_OnUse(
- item, playersao, pointed)) {
- // Apply returned ItemStack
- playersao->setWieldedItem(item);
- }
-
- } // action == 4
-
-
- /*
- Catch invalid actions
- */
- else {
- infostream << "WARNING: Server: Invalid action "
- << action << std::endl;
- }
-}
-
-void Server::handleCommand_RemovedSounds(ToServerPacket* pkt)
-{
- u16 num;
- *pkt >> num;
- for(int k=0; k<num; k++) {
- s32 id;
-
- *pkt >> id;
-
- std::map<s32, ServerPlayingSound>::iterator i =
- m_playing_sounds.find(id);
-
- if(i == m_playing_sounds.end())
- continue;
-
- ServerPlayingSound &psound = i->second;
- psound.clients.erase(pkt->getPeerId());
- if(psound.clients.empty())
- m_playing_sounds.erase(i++);
+ // Do nothing
}
}
-void Server::handleCommand_NodeMetaFields(ToServerPacket* pkt)
+PlayerSAO* Server::StageTwoClientInit(u16 peer_id)
{
- v3s16 p;
- std::string formname;
- u16 num;
+ std::string playername = "";
+ PlayerSAO *playersao = NULL;
+ m_clients.Lock();
+ try {
+ RemoteClient* client = m_clients.lockedGetClientNoEx(peer_id, CS_InitDone);
+ if (client != NULL) {
+ playername = client->getName();
+ playersao = emergePlayer(playername.c_str(), peer_id);
+ }
+ } catch (std::exception &e) {
+ m_clients.Unlock();
+ throw;
+ }
+ m_clients.Unlock();
- *pkt >> p >> formname >> num;
+ RemotePlayer *player =
+ static_cast<RemotePlayer*>(m_env->getPlayer(playername.c_str()));
- std::map<std::string, std::string> fields;
- for(int k=0; k<num; k++) {
- std::string fieldname;
- *pkt >> fieldname;
- fields[fieldname] = pkt->readLongString();
+ // If failed, cancel
+ if((playersao == NULL) || (player == NULL)) {
+ if(player && player->peer_id != 0) {
+ errorstream<<"Server: "<<playername<<": Failed to emerge player"
+ <<" (player allocated to an another client)"<<std::endl;
+ DenyAccess(peer_id, L"Another client is connected with this "
+ L"name. If your client closed unexpectedly, try again in "
+ L"a minute.");
+ } else {
+ errorstream<<"Server: "<<playername<<": Failed to emerge player"
+ <<std::endl;
+ DenyAccess(peer_id, L"Could not allocate player.");
+ }
+ return NULL;
}
- Player *player = m_env->getPlayer(pkt->getPeerId());
- if(player == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
+ /*
+ Send complete position information
+ */
+ SendMovePlayer(peer_id);
- PlayerSAO *playersao = player->getPlayerSAO();
- if(playersao == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player object for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
+ // Send privileges
+ SendPlayerPrivileges(peer_id);
- // If something goes wrong, this player is to blame
- RollbackScopeActor rollback_scope(m_rollback,
- std::string("player:")+player->getName());
+ // Send inventory formspec
+ SendPlayerInventoryFormspec(peer_id);
- // Check the target node for rollback data; leave others unnoticed
- RollbackNode rn_old(&m_env->getMap(), p, this);
+ // Send inventory
+ UpdateCrafting(peer_id);
+ SendInventory(peer_id);
- m_script->node_on_receive_fields(p, formname, fields, playersao);
+ // Send HP
+ if(g_settings->getBool("enable_damage"))
+ SendPlayerHP(peer_id);
- // Report rollback data
- RollbackNode rn_new(&m_env->getMap(), p, this);
- if(rollback() && rn_new != rn_old){
- RollbackAction action;
- action.setSetNode(p, rn_old, rn_new);
- rollback()->reportAction(action);
- }
-}
+ // Send Breath
+ SendPlayerBreath(peer_id);
-void Server::handleCommand_InventoryFields(ToServerPacket* pkt)
-{
- std::string formname;
- u16 num;
+ // Show death screen if necessary
+ if(player->hp == 0)
+ SendDeathscreen(peer_id, false, v3f(0,0,0));
- *pkt >> formname >> num;
+ // Note things in chat if not in simple singleplayer mode
+ if(!m_simple_singleplayer_mode) {
+ // Send information about server to player in chat
+ SendChatMessage(peer_id, getStatusString());
- std::map<std::string, std::string> fields;
- for(int k=0; k<num; k++) {
- std::string fieldname;
- *pkt >> fieldname;
- fields[fieldname] = pkt->readLongString();
- }
+ // Send information about joining in chat
+ {
+ std::wstring name = L"unknown";
+ Player *player = m_env->getPlayer(peer_id);
+ if(player != NULL)
+ name = narrow_to_wide(player->getName());
- Player *player = m_env->getPlayer(pkt->getPeerId());
- if(player == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
+ std::wstring message;
+ message += L"*** ";
+ message += name;
+ message += L" joined the game.";
+ SendChatMessage(PEER_ID_INEXISTENT,message);
+ }
}
+ Address addr = getPeerAddress(player->peer_id);
+ std::string ip_str = addr.serializeString();
+ actionstream<<player->getName() <<" [" << ip_str << "] joins game. " << std::endl;
+ /*
+ Print out action
+ */
+ {
+ std::vector<std::string> names = m_clients.getPlayerNames();
- PlayerSAO *playersao = player->getPlayerSAO();
- if(playersao == NULL) {
- errorstream << "Server::ProcessData(): Cancelling: "
- "No player object for peer_id=" << pkt->getPeerId()
- << " disconnecting peer!" << std::endl;
- m_con.DisconnectPeer(pkt->getPeerId());
- return;
- }
+ actionstream<<player->getName() <<" joins game. List of players: ";
+
+ for (std::vector<std::string>::iterator i = names.begin();
+ i != names.end(); i++) {
+ actionstream << *i << " ";
+ }
- m_script->on_playerReceiveFields(playersao, formname, fields);
+ actionstream << player->getName() <<std::endl;
+ }
+ return playersao;
}
-inline void Server::handleCommand(ToServerPacket* pkt)
+inline void Server::handleCommand(NetworkPacket* pkt)
{
const ToServerCommandHandler& opHandle = toServerCommandTable[pkt->getCommand()];
(this->*opHandle.handler)(pkt);
if(datasize < 2)
return;
- ToServerPacket* pkt = new ToServerPacket(data, datasize, peer_id);
+ NetworkPacket* pkt = new NetworkPacket(data, datasize, peer_id);
- ToServerCommand command = pkt->getCommand();
+ ToServerCommand command = (ToServerCommand) pkt->getCommand();
// Command must be handled into ToServerCommandHandler
if (command >= TOSERVER_NUM_MSG_TYPES) {
}
}
+void Server::Send(NetworkPacket* pkt)
+{
+ m_clients.send(pkt->getPeerId(),
+ clientCommandFactoryTable[pkt->getCommand()].channel,
+ pkt,
+ clientCommandFactoryTable[pkt->getCommand()].reliable);
+}
+
void Server::SendMovement(u16 peer_id)
{
DSTACK(__FUNCTION_NAME);
std::ostringstream os(std::ios_base::binary);
- writeU16(os, TOCLIENT_MOVEMENT);
- writeF1000(os, g_settings->getFloat("movement_acceleration_default"));
- writeF1000(os, g_settings->getFloat("movement_acceleration_air"));
- writeF1000(os, g_settings->getFloat("movement_acceleration_fast"));
- writeF1000(os, g_settings->getFloat("movement_speed_walk"));
- writeF1000(os, g_settings->getFloat("movement_speed_crouch"));
- writeF1000(os, g_settings->getFloat("movement_speed_fast"));
- writeF1000(os, g_settings->getFloat("movement_speed_climb"));
- writeF1000(os, g_settings->getFloat("movement_speed_jump"));
- writeF1000(os, g_settings->getFloat("movement_liquid_fluidity"));
- writeF1000(os, g_settings->getFloat("movement_liquid_fluidity_smooth"));
- writeF1000(os, g_settings->getFloat("movement_liquid_sink"));
- writeF1000(os, g_settings->getFloat("movement_gravity"));
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_MOVEMENT, 12 * sizeof(float), peer_id);
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ *pkt << g_settings->getFloat("movement_acceleration_default");
+ *pkt << g_settings->getFloat("movement_acceleration_air");
+ *pkt << g_settings->getFloat("movement_acceleration_fast");
+ *pkt << g_settings->getFloat("movement_speed_walk");
+ *pkt << g_settings->getFloat("movement_speed_crouch");
+ *pkt << g_settings->getFloat("movement_speed_fast");
+ *pkt << g_settings->getFloat("movement_speed_climb");
+ *pkt << g_settings->getFloat("movement_speed_jump");
+ *pkt << g_settings->getFloat("movement_liquid_fluidity");
+ *pkt << g_settings->getFloat("movement_liquid_fluidity_smooth");
+ *pkt << g_settings->getFloat("movement_liquid_sink");
+ *pkt << g_settings->getFloat("movement_gravity");
+
+ Send(pkt);
}
void Server::SendHP(u16 peer_id, u8 hp)
{
DSTACK(__FUNCTION_NAME);
- std::ostringstream os(std::ios_base::binary);
-
- writeU16(os, TOCLIENT_HP);
- writeU8(os, hp);
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_HP, 1, peer_id);
+ *pkt << hp;
+ Send(pkt);
}
void Server::SendBreath(u16 peer_id, u16 breath)
{
DSTACK(__FUNCTION_NAME);
- std::ostringstream os(std::ios_base::binary);
-
- writeU16(os, TOCLIENT_BREATH);
- writeU16(os, breath);
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_BREATH, 2, peer_id);
+ *pkt << (u16) breath;
+ Send(pkt);
}
void Server::SendAccessDenied(u16 peer_id,const std::wstring &reason)
{
DSTACK(__FUNCTION_NAME);
- std::ostringstream os(std::ios_base::binary);
-
- writeU16(os, TOCLIENT_ACCESS_DENIED);
- os<<serializeWideString(reason);
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_ACCESS_DENIED, 0, peer_id);
+ *pkt << reason;
+ Send(pkt);
}
void Server::SendDeathscreen(u16 peer_id,bool set_camera_point_target,
v3f camera_point_target)
{
DSTACK(__FUNCTION_NAME);
- std::ostringstream os(std::ios_base::binary);
-
- writeU16(os, TOCLIENT_DEATHSCREEN);
- writeU8(os, set_camera_point_target);
- writeV3F1000(os, camera_point_target);
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_DEATHSCREEN, 1 + sizeof(v3f), peer_id);
+ *pkt << set_camera_point_target << camera_point_target;
+ Send(pkt);
}
void Server::SendItemDef(u16 peer_id,
IItemDefManager *itemdef, u16 protocol_version)
{
DSTACK(__FUNCTION_NAME);
- std::ostringstream os(std::ios_base::binary);
+
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_ITEMDEF, 0, peer_id);
/*
u16 command
u32 length of the next item
zlib-compressed serialized ItemDefManager
*/
- writeU16(os, TOCLIENT_ITEMDEF);
std::ostringstream tmp_os(std::ios::binary);
itemdef->serialize(tmp_os, protocol_version);
std::ostringstream tmp_os2(std::ios::binary);
compressZlib(tmp_os.str(), tmp_os2);
- os<<serializeLongString(tmp_os2.str());
+ pkt->putLongString(tmp_os2.str());
// Make data buffer
- std::string s = os.str();
- verbosestream<<"Server: Sending item definitions to id("<<peer_id
- <<"): size="<<s.size()<<std::endl;
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ verbosestream << "Server: Sending item definitions to id(" << peer_id
+ << "): size=" << pkt->getSize() << std::endl;
+
+ Send(pkt);
}
void Server::SendNodeDef(u16 peer_id,
INodeDefManager *nodedef, u16 protocol_version)
{
DSTACK(__FUNCTION_NAME);
- std::ostringstream os(std::ios_base::binary);
+
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_NODEDEF, 0, peer_id);
/*
u16 command
u32 length of the next item
zlib-compressed serialized NodeDefManager
*/
- writeU16(os, TOCLIENT_NODEDEF);
std::ostringstream tmp_os(std::ios::binary);
nodedef->serialize(tmp_os, protocol_version);
std::ostringstream tmp_os2(std::ios::binary);
compressZlib(tmp_os.str(), tmp_os2);
- os<<serializeLongString(tmp_os2.str());
+
+ pkt->putLongString(tmp_os2.str());
// Make data buffer
- std::string s = os.str();
- verbosestream<<"Server: Sending node definitions to id("<<peer_id
- <<"): size="<<s.size()<<std::endl;
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ verbosestream << "Server: Sending node definitions to id(" << peer_id
+ << "): size=" << pkt->getSize() << std::endl;
+
+ Send(pkt);
}
/*
Serialize it
*/
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_INVENTORY, 0, peer_id);
+
std::ostringstream os;
playersao->getInventory()->serialize(os);
std::string s = os.str();
- SharedBuffer<u8> data(s.size()+2);
- writeU16(&data[0], TOCLIENT_INVENTORY);
- memcpy(&data[2], s.c_str(), s.size());
-
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ pkt->putRawString(s.c_str(), s.size());
+ Send(pkt);
}
void Server::SendChatMessage(u16 peer_id, const std::wstring &message)
{
DSTACK(__FUNCTION_NAME);
- std::ostringstream os(std::ios_base::binary);
- u8 buf[12];
-
- // Write command
- writeU16(buf, TOCLIENT_CHAT_MESSAGE);
- os.write((char*)buf, 2);
-
- // Write length
- writeU16(buf, message.size());
- os.write((char*)buf, 2);
-
- // Write string
- for(u32 i=0; i<message.size(); i++)
- {
- u16 w = message[i];
- writeU16(buf, w);
- os.write((char*)buf, 2);
- }
-
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_CHAT_MESSAGE, 0, peer_id);
+ *pkt << message;
- if (peer_id != PEER_ID_INEXISTENT)
- {
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ if (peer_id != PEER_ID_INEXISTENT) {
+ Send(pkt);
}
- else
- {
- m_clients.sendToAll(0,data,true);
+ else {
+ m_clients.sendToAll(0,pkt,true);
}
}
{
DSTACK(__FUNCTION_NAME);
- std::ostringstream os(std::ios_base::binary);
- u8 buf[12];
-
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_SHOW_FORMSPEC, 0 , peer_id);
- // Write command
- writeU16(buf, TOCLIENT_SHOW_FORMSPEC);
- os.write((char*)buf, 2);
- os<<serializeLongString(FORMSPEC_VERSION_STRING + formspec);
- os<<serializeString(formname);
+ pkt->putLongString(FORMSPEC_VERSION_STRING + formspec);
+ *pkt << formname;
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ Send(pkt);
}
// Spawns a particle on peer with peer_id
{
DSTACK(__FUNCTION_NAME);
- std::ostringstream os(std::ios_base::binary);
- writeU16(os, TOCLIENT_SPAWN_PARTICLE);
- writeV3F1000(os, pos);
- writeV3F1000(os, velocity);
- writeV3F1000(os, acceleration);
- writeF1000(os, expirationtime);
- writeF1000(os, size);
- writeU8(os, collisiondetection);
- os<<serializeLongString(texture);
- writeU8(os, vertical);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_SPAWN_PARTICLE, 0, peer_id);
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
+ *pkt << pos << velocity << acceleration << expirationtime
+ << size << collisiondetection;
+ pkt->putLongString(texture);
+ *pkt << vertical;
- if (peer_id != PEER_ID_INEXISTENT)
- {
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ if (peer_id != PEER_ID_INEXISTENT) {
+ Send(pkt);
}
- else
- {
- m_clients.sendToAll(0,data,true);
+ else {
+ m_clients.sendToAll(0,pkt,true);
}
}
{
DSTACK(__FUNCTION_NAME);
- std::ostringstream os(std::ios_base::binary);
- writeU16(os, TOCLIENT_ADD_PARTICLESPAWNER);
-
- writeU16(os, amount);
- writeF1000(os, spawntime);
- writeV3F1000(os, minpos);
- writeV3F1000(os, maxpos);
- writeV3F1000(os, minvel);
- writeV3F1000(os, maxvel);
- writeV3F1000(os, minacc);
- writeV3F1000(os, maxacc);
- writeF1000(os, minexptime);
- writeF1000(os, maxexptime);
- writeF1000(os, minsize);
- writeF1000(os, maxsize);
- writeU8(os, collisiondetection);
- os<<serializeLongString(texture);
- writeU32(os, id);
- writeU8(os, vertical);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_ADD_PARTICLESPAWNER, 0, peer_id);
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
+ *pkt << amount << spawntime << minpos << maxpos << minvel << maxvel
+ << minacc << maxacc << minexptime << maxexptime << minsize
+ << maxsize << collisiondetection;
- if (peer_id != PEER_ID_INEXISTENT)
- {
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ pkt->putLongString(texture);
+
+ *pkt << id << vertical;
+
+ if (peer_id != PEER_ID_INEXISTENT) {
+ Send(pkt);
}
else {
- m_clients.sendToAll(0,data,true);
+ m_clients.sendToAll(0, pkt, true);
}
}
{
DSTACK(__FUNCTION_NAME);
- std::ostringstream os(std::ios_base::binary);
- writeU16(os, TOCLIENT_DELETE_PARTICLESPAWNER);
-
- writeU16(os, id);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_DELETE_PARTICLESPAWNER, 2, peer_id);
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
+ // Ugly error in this packet
+ *pkt << (u16) id;
if (peer_id != PEER_ID_INEXISTENT) {
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ Send(pkt);
}
else {
- m_clients.sendToAll(0,data,true);
+ m_clients.sendToAll(0, pkt, true);
}
}
void Server::SendHUDAdd(u16 peer_id, u32 id, HudElement *form)
{
- std::ostringstream os(std::ios_base::binary);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_HUDADD, 0 , peer_id);
- // Write command
- writeU16(os, TOCLIENT_HUDADD);
- writeU32(os, id);
- writeU8(os, (u8)form->type);
- writeV2F1000(os, form->pos);
- os << serializeString(form->name);
- writeV2F1000(os, form->scale);
- os << serializeString(form->text);
- writeU32(os, form->number);
- writeU32(os, form->item);
- writeU32(os, form->dir);
- writeV2F1000(os, form->align);
- writeV2F1000(os, form->offset);
- writeV3F1000(os, form->world_pos);
- writeV2S32(os,form->size);
+ *pkt << id << (u8) form->type << form->pos << form->name << form->scale
+ << form->text << form->number << form->item << form->dir
+ << form->align << form->offset << form->world_pos << form->size;
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 1, data, true);
+ Send(pkt);
}
void Server::SendHUDRemove(u16 peer_id, u32 id)
{
- std::ostringstream os(std::ios_base::binary);
-
- // Write command
- writeU16(os, TOCLIENT_HUDRM);
- writeU32(os, id);
-
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
-
- m_clients.send(peer_id, 1, data, true);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_HUDRM, 4, peer_id);
+ *pkt << id;
+ Send(pkt);
}
void Server::SendHUDChange(u16 peer_id, u32 id, HudElementStat stat, void *value)
{
- std::ostringstream os(std::ios_base::binary);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_HUDCHANGE, 0, peer_id);
+ *pkt << id << (u8) stat;
- // Write command
- writeU16(os, TOCLIENT_HUDCHANGE);
- writeU32(os, id);
- writeU8(os, (u8)stat);
switch (stat) {
case HUD_STAT_POS:
case HUD_STAT_SCALE:
case HUD_STAT_ALIGN:
case HUD_STAT_OFFSET:
- writeV2F1000(os, *(v2f *)value);
+ *pkt << *(v2f *) value;
break;
case HUD_STAT_NAME:
case HUD_STAT_TEXT:
- os << serializeString(*(std::string *)value);
+ *pkt << *(std::string *) value;
break;
case HUD_STAT_WORLD_POS:
- writeV3F1000(os, *(v3f *)value);
+ *pkt << *(v3f *) value;
break;
case HUD_STAT_SIZE:
- writeV2S32(os,*(v2s32 *)value);
+ *pkt << *(v2s32 *) value;
break;
case HUD_STAT_NUMBER:
case HUD_STAT_ITEM:
case HUD_STAT_DIR:
default:
- writeU32(os, *(u32 *)value);
+ *pkt << *(u32 *) value;
break;
}
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8 *)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ Send(pkt);
}
void Server::SendHUDSetFlags(u16 peer_id, u32 flags, u32 mask)
{
- std::ostringstream os(std::ios_base::binary);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_HUD_SET_FLAGS, 4 + 4, peer_id);
- // Write command
- writeU16(os, TOCLIENT_HUD_SET_FLAGS);
-
- //////////////////////////// compatibility code to be removed //////////////
flags &= ~(HUD_FLAG_HEALTHBAR_VISIBLE | HUD_FLAG_BREATHBAR_VISIBLE);
- ////////////////////////////////////////////////////////////////////////////
- writeU32(os, flags);
- writeU32(os, mask);
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8 *)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ *pkt << flags << mask;
+
+ Send(pkt);
}
void Server::SendHUDSetParam(u16 peer_id, u16 param, const std::string &value)
{
- std::ostringstream os(std::ios_base::binary);
-
- // Write command
- writeU16(os, TOCLIENT_HUD_SET_PARAM);
- writeU16(os, param);
- os<<serializeString(value);
-
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8 *)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_HUD_SET_PARAM, 0, peer_id);
+ *pkt << param << value;
+ Send(pkt);
}
void Server::SendSetSky(u16 peer_id, const video::SColor &bgcolor,
const std::string &type, const std::vector<std::string> ¶ms)
{
- std::ostringstream os(std::ios_base::binary);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_SET_SKY, 0, peer_id);
+ *pkt << bgcolor << type << (u16) params.size();
- // Write command
- writeU16(os, TOCLIENT_SET_SKY);
- writeARGB8(os, bgcolor);
- os<<serializeString(type);
- writeU16(os, params.size());
for(size_t i=0; i<params.size(); i++)
- os<<serializeString(params[i]);
+ *pkt << params[i];
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8 *)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ Send(pkt);
}
void Server::SendOverrideDayNightRatio(u16 peer_id, bool do_override,
float ratio)
{
- std::ostringstream os(std::ios_base::binary);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_OVERRIDE_DAY_NIGHT_RATIO,
+ 1 + 2, peer_id);
- // Write command
- writeU16(os, TOCLIENT_OVERRIDE_DAY_NIGHT_RATIO);
- writeU8(os, do_override);
- writeU16(os, ratio*65535);
+ *pkt << do_override << (u16) (ratio * 65535);
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8 *)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ Send (pkt);
}
void Server::SendTimeOfDay(u16 peer_id, u16 time, f32 time_speed)
{
DSTACK(__FUNCTION_NAME);
- // Make packet
- SharedBuffer<u8> data(2+2+4);
- writeU16(&data[0], TOCLIENT_TIME_OF_DAY);
- writeU16(&data[2], time);
- writeF1000(&data[4], time_speed);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_TIME_OF_DAY, 0, peer_id);
+ *pkt << time << time_speed;
if (peer_id == PEER_ID_INEXISTENT) {
- m_clients.sendToAll(0,data,true);
+ m_clients.sendToAll(0, pkt, true);
}
else {
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ Send(pkt);
}
}
Player *player = m_env->getPlayer(peer_id);
assert(player);
- std::ostringstream os(std::ios_base::binary);
- writeU16(os, TOCLIENT_MOVE_PLAYER);
- writeV3F1000(os, player->getPosition());
- writeF1000(os, player->getPitch());
- writeF1000(os, player->getYaw());
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_MOVE_PLAYER, 0, peer_id);
+ *pkt << player->getPosition() << player->getPitch() << player->getYaw();
{
v3f pos = player->getPosition();
<<std::endl;
}
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ Send(pkt);
}
void Server::SendLocalPlayerAnimations(u16 peer_id, v2s32 animation_frames[4], f32 animation_speed)
{
- std::ostringstream os(std::ios_base::binary);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_LOCAL_PLAYER_ANIMATIONS, 0,
+ peer_id);
- writeU16(os, TOCLIENT_LOCAL_PLAYER_ANIMATIONS);
- writeV2S32(os, animation_frames[0]);
- writeV2S32(os, animation_frames[1]);
- writeV2S32(os, animation_frames[2]);
- writeV2S32(os, animation_frames[3]);
- writeF1000(os, animation_speed);
+ *pkt << animation_frames[0] << animation_frames[1] << animation_frames[2]
+ << animation_frames[3] << animation_speed;
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8 *)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ Send(pkt);
}
void Server::SendEyeOffset(u16 peer_id, v3f first, v3f third)
{
- std::ostringstream os(std::ios_base::binary);
-
- writeU16(os, TOCLIENT_EYE_OFFSET);
- writeV3F1000(os, first);
- writeV3F1000(os, third);
-
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8 *)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_EYE_OFFSET, 0, peer_id);
+ *pkt << first << third;
+ Send(pkt);
}
void Server::SendPlayerPrivileges(u16 peer_id)
{
std::set<std::string> privs;
m_script->getAuth(player->getName(), NULL, &privs);
- std::ostringstream os(std::ios_base::binary);
- writeU16(os, TOCLIENT_PRIVILEGES);
- writeU16(os, privs.size());
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_PRIVILEGES, 0, peer_id);
+ *pkt << (u16) privs.size();
+
for(std::set<std::string>::const_iterator i = privs.begin();
- i != privs.end(); i++){
- os<<serializeString(*i);
+ i != privs.end(); i++) {
+ *pkt << (*i);
}
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ Send(pkt);
}
void Server::SendPlayerInventoryFormspec(u16 peer_id)
if(player->peer_id == PEER_ID_INEXISTENT)
return;
- std::ostringstream os(std::ios_base::binary);
- writeU16(os, TOCLIENT_INVENTORY_FORMSPEC);
- os<<serializeLongString(FORMSPEC_VERSION_STRING + player->inventory_formspec);
-
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_INVENTORY_FORMSPEC, 0, peer_id);
+ pkt->putLongString(FORMSPEC_VERSION_STRING + player->inventory_formspec);
+ Send(pkt);
}
s32 Server::playSound(const SimpleSoundSpec &spec,
for(std::list<u16>::iterator i = dst_clients.begin();
i != dst_clients.end(); i++)
psound.clients.insert(*i);
- // Create packet
- std::ostringstream os(std::ios_base::binary);
- writeU16(os, TOCLIENT_PLAY_SOUND);
- writeS32(os, id);
- os<<serializeString(spec.name);
- writeF1000(os, spec.gain * params.gain);
- writeU8(os, params.type);
- writeV3F1000(os, pos);
- writeU16(os, params.object);
- writeU8(os, params.loop);
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send
+
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_PLAY_SOUND, 0);
+ *pkt << id << spec.name << (float) (spec.gain * params.gain)
+ << (u8) params.type << pos << params.object << params.loop;
for(std::list<u16>::iterator i = dst_clients.begin();
- i != dst_clients.end(); i++){
+ i != dst_clients.end(); i++) {
// Send as reliable
- m_clients.send(*i, 0, data, true);
+ m_clients.send(*i, 0, pkt, true, false);
}
+ delete pkt;
return id;
}
void Server::stopSound(s32 handle)
if(i == m_playing_sounds.end())
return;
ServerPlayingSound &psound = i->second;
- // Create packet
- std::ostringstream os(std::ios_base::binary);
- writeU16(os, TOCLIENT_STOP_SOUND);
- writeS32(os, handle);
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send
+
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_STOP_SOUND, 4);
+ *pkt << handle;
+
for(std::set<u16>::iterator i = psound.clients.begin();
- i != psound.clients.end(); i++){
+ i != psound.clients.end(); i++) {
// Send as reliable
- m_clients.send(*i, 0, data, true);
+ m_clients.send(*i, 0, pkt, true, false);
}
+ delete pkt;
// Remove sound reference
m_playing_sounds.erase(i);
}
float maxd = far_d_nodes*BS;
v3f p_f = intToFloat(p, BS);
- // Create packet
- u32 replysize = 8;
- SharedBuffer<u8> reply(replysize);
- writeU16(&reply[0], TOCLIENT_REMOVENODE);
- writeS16(&reply[2], p.X);
- writeS16(&reply[4], p.Y);
- writeS16(&reply[6], p.Z);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_REMOVENODE, 2 + 2 + 2);
+ *pkt << p;
std::list<u16> clients = m_clients.getClientIDs();
for(std::list<u16>::iterator
}
// Send as reliable
- m_clients.send(*i, 0, reply, true);
+ m_clients.send(*i, 0, pkt, true, false);
}
+ // This loop needs the deletion of the packet here
+ delete pkt;
}
void Server::sendAddNode(v3s16 p, MapNode n, u16 ignore_id,
}
}
}
- SharedBuffer<u8> reply(0);
+
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_ADDNODE, 0);
m_clients.Lock();
RemoteClient* client = m_clients.lockedGetClientNoEx(*i);
- if (client != 0)
- {
- // Create packet
- u32 replysize = 9 + MapNode::serializedLength(client->serialization_version);
- reply = SharedBuffer<u8>(replysize);
- writeU16(&reply[0], TOCLIENT_ADDNODE);
- writeS16(&reply[2], p.X);
- writeS16(&reply[4], p.Y);
- writeS16(&reply[6], p.Z);
- n.serialize(&reply[8], client->serialization_version);
- u32 index = 8 + MapNode::serializedLength(client->serialization_version);
- writeU8(&reply[index], remove_metadata ? 0 : 1);
+ if (client != 0) {
+ *pkt << p << n.param0 << n.param1 << n.param2
+ << (u8) (remove_metadata ? 0 : 1);
if (!remove_metadata) {
if (client->net_proto_version <= 21) {
m_clients.Unlock();
// Send as reliable
- if (reply.getSize() > 0)
- m_clients.send(*i, 0, reply, true);
+ if (pkt->getSize() > 0)
+ m_clients.send(*i, 0, pkt, true);
}
}
v3s16 p = block->getPos();
-#if 0
- // Analyze it a bit
- bool completely_air = true;
- for(s16 z0=0; z0<MAP_BLOCKSIZE; z0++)
- for(s16 x0=0; x0<MAP_BLOCKSIZE; x0++)
- for(s16 y0=0; y0<MAP_BLOCKSIZE; y0++)
- {
- if(block->getNodeNoEx(v3s16(x0,y0,z0)).d != CONTENT_AIR)
- {
- completely_air = false;
- x0 = y0 = z0 = MAP_BLOCKSIZE; // Break out
- }
- }
-
- // Print result
- infostream<<"Server: Sending block ("<<p.X<<","<<p.Y<<","<<p.Z<<"): ";
- if(completely_air)
- infostream<<"[completely air] ";
- infostream<<std::endl;
-#endif
-
/*
Create a packet with the block in the right format
*/
block->serialize(os, ver, false);
block->serializeNetworkSpecific(os, net_proto_version);
std::string s = os.str();
- SharedBuffer<u8> blockdata((u8*)s.c_str(), s.size());
- u32 replysize = 8 + blockdata.getSize();
- SharedBuffer<u8> reply(replysize);
- writeU16(&reply[0], TOCLIENT_BLOCKDATA);
- writeS16(&reply[2], p.X);
- writeS16(&reply[4], p.Y);
- writeS16(&reply[6], p.Z);
- memcpy(&reply[8], *blockdata, blockdata.getSize());
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_BLOCKDATA,
+ 2 + 2 + 2 + 2 + s.size(), peer_id);
- /*infostream<<"Server: Sending block ("<<p.X<<","<<p.Y<<","<<p.Z<<")"
- <<": \tpacket size: "<<replysize<<std::endl;*/
-
- /*
- Send packet
- */
- m_clients.send(peer_id, 2, reply, true);
+ *pkt << p;
+ pkt->putRawString(s.c_str(), s.size());
+ Send(pkt);
}
void Server::SendBlocks(float dtime)
std::ostringstream os(std::ios_base::binary);
/*
- u16 command
u32 number of files
for each texture {
u16 length of name
}
*/
- writeU16(os, TOCLIENT_ANNOUNCE_MEDIA);
- writeU16(os, file_announcements.size());
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_ANNOUNCE_MEDIA, 0, peer_id);
+ *pkt << (u16) file_announcements.size();
for(std::list<SendableMediaAnnouncement>::iterator
j = file_announcements.begin();
- j != file_announcements.end(); ++j){
- os<<serializeString(j->name);
- os<<serializeString(j->sha1_digest);
+ j != file_announcements.end(); ++j) {
+ *pkt << j->name << j->sha1_digest;
}
- os<<serializeString(g_settings->get("remote_media"));
- // Make data buffer
- std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
-
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ *pkt << g_settings->get("remote_media");
+ Send(pkt);
}
struct SendableMedia
{
const std::string &name = *i;
- if(m_media.find(name) == m_media.end()){
+ if(m_media.find(name) == m_media.end()) {
errorstream<<"Server::sendRequestedMedia(): Client asked for "
<<"unknown file \""<<(name)<<"\""<<std::endl;
continue;
}
std::ostringstream tmp_os(std::ios_base::binary);
bool bad = false;
- for(;;){
+ for(;;) {
char buf[1024];
fis.read(buf, 1024);
std::streamsize len = fis.gcount();
file_size_bunch_total += len;
if(fis.eof())
break;
- if(!fis.good()){
+ if(!fis.good()) {
bad = true;
break;
}
}
- if(bad){
+ if(bad) {
errorstream<<"Server::sendRequestedMedia(): Failed to read \""
<<name<<"\""<<std::endl;
continue;
SendableMedia(name, tpath, tmp_os.str()));
// Start next bunch if got enough data
- if(file_size_bunch_total >= bytes_per_bunch){
+ if(file_size_bunch_total >= bytes_per_bunch) {
file_bunches.push_back(std::list<SendableMedia>());
file_size_bunch_total = 0;
}
/* Create and send packets */
- u32 num_bunches = file_bunches.size();
- for(u32 i=0; i<num_bunches; i++)
- {
- std::ostringstream os(std::ios_base::binary);
-
+ u16 num_bunches = file_bunches.size();
+ for(u16 i = 0; i < num_bunches; i++) {
/*
u16 command
u16 total number of texture bunches
}
*/
- writeU16(os, TOCLIENT_MEDIA);
- writeU16(os, num_bunches);
- writeU16(os, i);
- writeU32(os, file_bunches[i].size());
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_MEDIA, 0, peer_id);
+ *pkt << num_bunches << i << (u32) file_bunches[i].size();
for(std::list<SendableMedia>::iterator
j = file_bunches[i].begin();
- j != file_bunches[i].end(); ++j){
- os<<serializeString(j->name);
- os<<serializeLongString(j->data);
+ j != file_bunches[i].end(); ++j) {
+ *pkt << j->name;
+ pkt->putLongString(j->data);
}
- // Make data buffer
- std::string s = os.str();
- verbosestream<<"Server::sendRequestedMedia(): bunch "
- <<i<<"/"<<num_bunches
- <<" files="<<file_bunches[i].size()
- <<" size=" <<s.size()<<std::endl;
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- // Send as reliable
- m_clients.send(peer_id, 2, data, true);
+ verbosestream << "Server::sendRequestedMedia(): bunch "
+ << i << "/" << num_bunches
+ << " files=" << file_bunches[i].size()
+ << " size=" << pkt->getSize() << std::endl;
+ Send(pkt);
}
}
void Server::sendDetachedInventory(const std::string &name, u16 peer_id)
{
- if(m_detached_inventories.count(name) == 0){
+ if(m_detached_inventories.count(name) == 0) {
errorstream<<__FUNCTION_NAME<<": \""<<name<<"\" not found"<<std::endl;
return;
}
Inventory *inv = m_detached_inventories[name];
-
std::ostringstream os(std::ios_base::binary);
- writeU16(os, TOCLIENT_DETACHED_INVENTORY);
- os<<serializeString(name);
+
+ os << serializeString(name);
inv->serialize(os);
// Make data buffer
std::string s = os.str();
- SharedBuffer<u8> data((u8*)s.c_str(), s.size());
- if (peer_id != PEER_ID_INEXISTENT)
- {
- // Send as reliable
- m_clients.send(peer_id, 0, data, true);
+ NetworkPacket* pkt = new NetworkPacket(TOCLIENT_DETACHED_INVENTORY, 0, peer_id);
+ pkt->putRawString(s.c_str(), s.size());
+
+ if (peer_id != PEER_ID_INEXISTENT) {
+ Send(pkt);
}
- else
- {
- m_clients.sendToAll(0,data,true);
+ else {
+ m_clients.sendToAll(0, pkt, true);
}
}
for(std::map<std::string, Inventory*>::iterator
i = m_detached_inventories.begin();
- i != m_detached_inventories.end(); i++){
+ i != m_detached_inventories.end(); i++) {
const std::string &name = i->first;
//Inventory *inv = i->second;
sendDetachedInventory(name, peer_id);
#ifndef SERVER_HEADER
#define SERVER_HEADER
-#include "connection.h"
+#include "network/connection.h"
#include "irr_v3d.h"
#include "map.h"
#include "hud.h"
#include "util/thread.h"
#include "environment.h"
#include "clientiface.h"
-#include "network/toserverpacket.h"
+#include "network/networkpacket.h"
#include <string>
#include <list>
#include <map>
* Command Handlers
*/
- void handleCommand(ToServerPacket* pkt);
-
- void handleCommand_Null(ToServerPacket* pkt) {};
- void handleCommand_Deprecated(ToServerPacket* pkt);
- void handleCommand_Init(ToServerPacket* pkt);
- void handleCommand_Init2(ToServerPacket* pkt);
- void handleCommand_RequestMedia(ToServerPacket* pkt);
- void handleCommand_ReceivedMedia(ToServerPacket* pkt);
- void handleCommand_ClientReady(ToServerPacket* pkt);
- void handleCommand_GotBlocks(ToServerPacket* pkt);
- void handleCommand_PlayerPos(ToServerPacket* pkt);
- void handleCommand_DeletedBlocks(ToServerPacket* pkt);
- void handleCommand_InventoryAction(ToServerPacket* pkt);
- void handleCommand_ChatMessage(ToServerPacket* pkt);
- void handleCommand_Damage(ToServerPacket* pkt);
- void handleCommand_Breath(ToServerPacket* pkt);
- void handleCommand_Password(ToServerPacket* pkt);
- void handleCommand_PlayerItem(ToServerPacket* pkt);
- void handleCommand_Respawn(ToServerPacket* pkt);
- void handleCommand_Interact(ToServerPacket* pkt);
- void handleCommand_RemovedSounds(ToServerPacket* pkt);
- void handleCommand_NodeMetaFields(ToServerPacket* pkt);
- void handleCommand_InventoryFields(ToServerPacket* pkt);
+ void handleCommand(NetworkPacket* pkt);
+
+ void handleCommand_Null(NetworkPacket* pkt) {};
+ void handleCommand_Deprecated(NetworkPacket* pkt);
+ void handleCommand_Init(NetworkPacket* pkt);
+ void handleCommand_Init2(NetworkPacket* pkt);
+ void handleCommand_RequestMedia(NetworkPacket* pkt);
+ void handleCommand_ReceivedMedia(NetworkPacket* pkt);
+ void handleCommand_ClientReady(NetworkPacket* pkt);
+ void handleCommand_GotBlocks(NetworkPacket* pkt);
+ void handleCommand_PlayerPos(NetworkPacket* pkt);
+ void handleCommand_DeletedBlocks(NetworkPacket* pkt);
+ void handleCommand_InventoryAction(NetworkPacket* pkt);
+ void handleCommand_ChatMessage(NetworkPacket* pkt);
+ void handleCommand_Damage(NetworkPacket* pkt);
+ void handleCommand_Breath(NetworkPacket* pkt);
+ void handleCommand_Password(NetworkPacket* pkt);
+ void handleCommand_PlayerItem(NetworkPacket* pkt);
+ void handleCommand_Respawn(NetworkPacket* pkt);
+ void handleCommand_Interact(NetworkPacket* pkt);
+ void handleCommand_RemovedSounds(NetworkPacket* pkt);
+ void handleCommand_NodeMetaFields(NetworkPacket* pkt);
+ void handleCommand_InventoryFields(NetworkPacket* pkt);
void ProcessData(u8 *data, u32 datasize, u16 peer_id);
+ void Send(NetworkPacket* pkt);
+
// Environment must be locked when called
void setTimeOfDay(u32 time);
#include "player.h"
#include "main.h"
#include "socket.h"
-#include "connection.h"
+#include "network/connection.h"
#include "serialization.h"
#include "voxel.h"
#include "collision.h"
catch(con::NoIncomingDataException &e)
{
}
-#if 1
+
/*
Simple send-receive test
*/
{
- /*u8 data[] = "Hello World!";
- u32 datasize = sizeof(data);*/
- SharedBuffer<u8> data = SharedBufferFromString("Hello World!");
+ NetworkPacket* pkt = new NetworkPacket((u8*) "Hello World !", 14, 0);
+
+ SharedBuffer<u8> sentdata = pkt->oldForgePacket();
infostream<<"** running client.Send()"<<std::endl;
- client.Send(PEER_ID_SERVER, 0, data, true);
+ client.Send(PEER_ID_SERVER, 0, pkt, true);
sleep_ms(50);
u16 peer_id;
SharedBuffer<u8> recvdata;
- infostream<<"** running server.Receive()"<<std::endl;
+ infostream << "** running server.Receive()" << std::endl;
u32 size = server.Receive(peer_id, recvdata);
- infostream<<"** Server received: peer_id="<<peer_id
- <<", size="<<size
- <<", data="<<*data
- <<std::endl;
- UASSERT(memcmp(*data, *recvdata, data.getSize()) == 0);
- }
-#endif
- u16 peer_id_client = 2;
-#if 0
- /*
- Send consequent packets in different order
- Not compatible with new Connection, thus commented out.
- */
- {
- //u8 data1[] = "hello1";
- //u8 data2[] = "hello2";
- SharedBuffer<u8> data1 = SharedBufferFromString("hello1");
- SharedBuffer<u8> data2 = SharedBufferFromString("Hello2");
-
- Address client_address =
- server.GetPeerAddress(peer_id_client);
-
- infostream<<"*** Sending packets in wrong order (2,1,2)"
- <<std::endl;
-
- u8 chn = 0;
- con::Channel *ch = &server.getPeer(peer_id_client)->channels[chn];
- u16 sn = ch->next_outgoing_seqnum;
- ch->next_outgoing_seqnum = sn+1;
- server.Send(peer_id_client, chn, data2, true);
- ch->next_outgoing_seqnum = sn;
- server.Send(peer_id_client, chn, data1, true);
- ch->next_outgoing_seqnum = sn+1;
- server.Send(peer_id_client, chn, data2, true);
-
- sleep_ms(50);
-
- infostream<<"*** Receiving the packets"<<std::endl;
-
- u16 peer_id;
- SharedBuffer<u8> recvdata;
- u32 size;
-
- infostream<<"** running client.Receive()"<<std::endl;
- peer_id = 132;
- size = client.Receive(peer_id, recvdata);
- infostream<<"** Client received: peer_id="<<peer_id
- <<", size="<<size
- <<", data="<<*recvdata
- <<std::endl;
- UASSERT(size == data1.getSize());
- UASSERT(memcmp(*data1, *recvdata, data1.getSize()) == 0);
- UASSERT(peer_id == PEER_ID_SERVER);
-
- infostream<<"** running client.Receive()"<<std::endl;
- peer_id = 132;
- size = client.Receive(peer_id, recvdata);
- infostream<<"** Client received: peer_id="<<peer_id
- <<", size="<<size
- <<", data="<<*recvdata
- <<std::endl;
- UASSERT(size == data2.getSize());
- UASSERT(memcmp(*data2, *recvdata, data2.getSize()) == 0);
- UASSERT(peer_id == PEER_ID_SERVER);
+ infostream << "** Server received: peer_id=" << peer_id
+ << ", size=" << size
+ << ", data=" << (const char*)pkt->getU8Ptr(0)
+ << std::endl;
- bool got_exception = false;
- try
- {
- infostream<<"** running client.Receive()"<<std::endl;
- peer_id = 132;
- size = client.Receive(peer_id, recvdata);
- infostream<<"** Client received: peer_id="<<peer_id
- <<", size="<<size
- <<", data="<<*recvdata
- <<std::endl;
- }
- catch(con::NoIncomingDataException &e)
- {
- infostream<<"** No incoming data for client"<<std::endl;
- got_exception = true;
- }
- UASSERT(got_exception);
+ UASSERT(memcmp(*sentdata, *recvdata, recvdata.getSize()) == 0);
}
-#endif
-#if 0
- /*
- Send large amounts of packets (infinite test)
- Commented out because of infinity.
- */
- {
- infostream<<"Sending large amounts of packets (infinite test)"<<std::endl;
- int sendcount = 0;
- for(;;){
- int datasize = myrand_range(0,5)==0?myrand_range(100,10000):myrand_range(0,100);
- infostream<<"datasize="<<datasize<<std::endl;
- SharedBuffer<u8> data1(datasize);
- for(u16 i=0; i<datasize; i++)
- data1[i] = i/4;
-
- int sendtimes = myrand_range(1,10);
- for(int i=0; i<sendtimes; i++){
- server.Send(peer_id_client, 0, data1, true);
- sendcount++;
- }
- infostream<<"sendcount="<<sendcount<<std::endl;
-
- //int receivetimes = myrand_range(1,20);
- int receivetimes = 20;
- for(int i=0; i<receivetimes; i++){
- SharedBuffer<u8> recvdata;
- u16 peer_id = 132;
- u16 size = 0;
- bool received = false;
- try{
- size = client.Receive(peer_id, recvdata);
- received = true;
- }catch(con::NoIncomingDataException &e){
- }
- }
- }
- }
-#endif
+
+ u16 peer_id_client = 2;
/*
Send a large packet
*/
{
const int datasize = 30000;
- SharedBuffer<u8> data1(datasize);
+ NetworkPacket* pkt = new NetworkPacket(0, datasize);
for(u16 i=0; i<datasize; i++){
- data1[i] = i/4;
+ *pkt << (u8) i/4;
}
infostream<<"Sending data (size="<<datasize<<"):";
for(int i=0; i<datasize && i<20; i++){
if(i%2==0) infostream<<" ";
char buf[10];
- snprintf(buf, 10, "%.2X", ((int)((const char*)*data1)[i])&0xff);
+ snprintf(buf, 10, "%.2X", ((int)((const char*)pkt->getU8Ptr(0))[i])&0xff);
infostream<<buf;
}
if(datasize>20)
infostream<<"...";
infostream<<std::endl;
- server.Send(peer_id_client, 0, data1, true);
+ SharedBuffer<u8> sentdata = pkt->oldForgePacket();
+
+ server.Send(peer_id_client, 0, pkt, true);
//sleep_ms(3000);
infostream<<"...";
infostream<<std::endl;
- UASSERT(memcmp(*data1, *recvdata, data1.getSize()) == 0);
+ UASSERT(memcmp(*sentdata, *recvdata, recvdata.getSize()) == 0);
UASSERT(peer_id == PEER_ID_SERVER);
}
projects / oweals / minetest.git / commitdiff