GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 2, or (at your
+ by the Free Software Foundation; either version 3, or (at your
option) any later version.
GNUnet is distributed in the hope that it will be useful, but
* @author Christian Grothoff
* @author Nathan Evans
*
- * TODO: Currently the final hop of a DV message assigns a 0 to the receiver
- * id field. This probably can't work(!) even if we know that the peer is
- * a direct neighbor (unless we can trust that transport will choose that
- * address for the peer). So the DV message will likely need to have the
- * peer identity of the recipient.
- *
- * Also the gossip rates need to be worked out. Probably many other things
- * as well.
- *
*/
#include "platform.h"
#include "gnunet_client_lib.h"
#include "gnunet_hello_lib.h"
#include "gnunet_peerinfo_service.h"
#include "gnunet_crypto_lib.h"
+#include "gnunet_statistics_service.h"
#include "dv.h"
/**
- * DV Service Context stuff goes here...
- */
-
-/**
- * Handle to the core service api.
- */
-static struct GNUNET_CORE_Handle *coreAPI;
-
-/**
- * The identity of our peer.
+ * For testing mostly, remember only the
+ * shortest path to a distant neighbor.
*/
-static struct GNUNET_PeerIdentity my_identity;
+#define AT_MOST_ONE GNUNET_NO
-/**
- * The configuration for this service.
- */
-static const struct GNUNET_CONFIGURATION_Handle *cfg;
+#define USE_PEER_ID GNUNET_YES
/**
- * The scheduler for this service.
+ * How many outstanding messages (unknown sender) will we allow per peer?
*/
-static struct GNUNET_SCHEDULER_Handle *sched;
+#define MAX_OUTSTANDING_MESSAGES 5
/**
* How often do we check about sending out more peer information (if
* we are connected to no peers previously).
*/
-#define GNUNET_DV_DEFAULT_SEND_INTERVAL GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 500))
+#define GNUNET_DV_DEFAULT_SEND_INTERVAL GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 500000)
/**
* How long do we wait at most between sending out information?
*/
-#define GNUNET_DV_MAX_SEND_INTERVAL GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 5))
+#define GNUNET_DV_MAX_SEND_INTERVAL GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 500000)
/**
* How long can we have not heard from a peer and
#define DV_PRIORITY 0
/**
- * The client, should be the DV plugin connected to us. Hopefully
- * this client will never change, although if the plugin dies
- * and returns for some reason it may happen.
+ * The cost to a direct neighbor. We used to use 0, but 1 makes more sense.
*/
-static struct GNUNET_SERVER_Client * client_handle;
+#define DIRECT_NEIGHBOR_COST 1
/**
- * Task to run when we shut down, cleaning up all our trash
+ * The default number of direct connections to store in DV (max)
*/
-GNUNET_SCHEDULER_TaskIdentifier cleanup_task;
+#define DEFAULT_DIRECT_CONNECTIONS 50
/**
- * Task to run to gossip about peers. Will reschedule itself forever until shutdown!
+ * The default size of direct + extended peers in DV (max)
*/
-GNUNET_SCHEDULER_TaskIdentifier gossip_task;
+#define DEFAULT_DV_SIZE 100
/**
- * Struct where neighbor information is stored.
+ * The default fisheye depth, from how many hops away will
+ * we keep peers?
*/
-struct DistantNeighbor *referees;
-
-static struct GNUNET_TIME_Relative client_transmit_timeout;
-
-static struct GNUNET_TIME_Relative default_dv_delay;
-
-static size_t default_dv_priority = 0;
-
+#define DEFAULT_FISHEYE_DEPTH 4
/**
* Linked list of messages to send to clients.
struct PendingMessage *prev;
/**
- * Actual message to be sent; // avoid allocation
+ * The PeerIdentity to send to
*/
- const struct GNUNET_MessageHeader *msg; // msg = (cast) &pm[1]; // memcpy (&pm[1], data, len);
-
-};
-
-/**
- * Transmit handle to the plugin.
- */
-struct GNUNET_CONNECTION_TransmitHandle * plugin_transmit_handle;
+ struct GNUNET_PeerIdentity recipient;
-/**
- * Head of DLL for client messages
- */
-struct PendingMessage *plugin_pending_head;
+ /**
+ * The result of message sending.
+ */
+ struct GNUNET_DV_SendResultMessage *send_result;
-/**
- * Tail of DLL for client messages
- */
-struct PendingMessage *plugin_pending_tail;
+ /**
+ * Message importance level.
+ */
+ unsigned int importance;
+ /**
+ * Size of message.
+ */
+ unsigned int msg_size;
-/**
- * Transmit handle to core service.
- */
-struct GNUNET_CORE_TransmitHandle * core_transmit_handle;
+ /**
+ * How long to wait before sending message.
+ */
+ struct GNUNET_TIME_Relative timeout;
-/**
- * Head of DLL for core messages
- */
-struct PendingMessage *core_pending_head;
+ /**
+ * Actual message to be sent; // avoid allocation
+ */
+ const struct GNUNET_MessageHeader *msg; // msg = (cast) &pm[1]; // memcpy (&pm[1], data, len);
-/**
- * Tail of DLL for core messages
- */
-struct PendingMessage *core_pending_tail;
+};
+struct FastGossipNeighborList
+{
+ /**
+ * Next element of DLL
+ */
+ struct FastGossipNeighborList *next;
+ /**
+ * Prev element of DLL
+ */
+ struct FastGossipNeighborList *prev;
+ /**
+ * The neighbor to gossip about
+ */
+ struct DistantNeighbor *about;
+};
/**
* Context created whenever a direct peer connects to us,
struct DirectNeighbor *toNeighbor;
/**
- * The timeout for this task.
+ * The task associated with this context.
*/
- struct GNUNET_TIME_Relative timeout;
+ GNUNET_SCHEDULER_TaskIdentifier task;
/**
- * The task associated with this context.
+ * Head of DLL of peers to gossip about
+ * as fast as possible to this peer, for initial
+ * set up.
*/
- GNUNET_SCHEDULER_TaskIdentifier task;
+ struct FastGossipNeighborList *fast_gossip_list_head;
+
+ /**
+ * Tail of DLL of peers to gossip about
+ * as fast as possible to this peer, for initial
+ * set up.
+ */
+ struct FastGossipNeighborList *fast_gossip_list_tail;
};
* The time we heard about this peer
*/
struct GNUNET_TIME_Absolute now;
+
+ /**
+ * Peer id this peer uses to refer to neighbor.
+ */
+ unsigned int referrer_peer_id;
+
+};
+
+/**
+ * Struct to store a single message received with
+ * an unknown sender.
+ */
+struct UnknownSenderMessage
+{
+ /**
+ * Message sender (immediate)
+ */
+ struct GNUNET_PeerIdentity sender;
+
+ /**
+ * The actual message received
+ */
+ struct GNUNET_MessageHeader *message;
+
+ /**
+ * Latency of connection
+ */
+ struct GNUNET_TIME_Relative latency;
+
+ /**
+ * Distance to destination
+ */
+ uint32_t distance;
+
+ /**
+ * Unknown sender id
+ */
+ uint32_t sender_id;
};
/**
* from DV?
*/
int hidden;
+
+ /**
+ * Save messages immediately from this direct neighbor from a
+ * distan peer we don't know on the chance that it will be
+ * gossiped about and we can deliver the message.
+ */
+ struct UnknownSenderMessage pending_messages[MAX_OUTSTANDING_MESSAGES];
};
*/
struct GNUNET_TIME_Absolute last_activity;
+ /**
+ * Last time we sent routing information about this peer
+ */
+ struct GNUNET_TIME_Absolute last_gossip;
+
/**
* Cost to neighbor, used for actual distance vector computations
*/
*/
struct DirectNeighbor *neighbor;
+ /**
+ * The distant neighbor entry for this direct neighbor.
+ */
+ struct DistantNeighbor *distant;
+
};
/**
*/
struct GNUNET_MessageHeader *message;
+ /**
+ * The pre-built send result message. Simply needs to be queued
+ * and freed once send has been called!
+ */
+ struct GNUNET_DV_SendResultMessage *send_result;
+
/**
* The size of the message being sent, may be larger
* than message->header.size because it's multiple
* Timeout for this message
*/
struct GNUNET_TIME_Relative timeout;
+
+ /**
+ * Unique ID for DV message
+ */
+ unsigned int uid;
};
-/**
- * Global construct
- */
-struct GNUNET_DV_Context
+struct FindDestinationContext
+{
+ unsigned int tid;
+ struct DistantNeighbor *dest;
+};
+
+struct FindIDContext
+{
+ unsigned int tid;
+ struct GNUNET_PeerIdentity *dest;
+ const struct GNUNET_PeerIdentity *via;
+};
+
+struct DisconnectContext
{
/**
- * Map of PeerIdentifiers to 'struct GNUNET_dv_neighbor*'s for all
- * directly connected peers.
+ * Distant neighbor to get pid from.
+ */
+ struct DistantNeighbor *distant;
+
+ /**
+ * Direct neighbor that disconnected.
*/
- struct GNUNET_CONTAINER_MultiHashMap *direct_neighbors;
+ struct DirectNeighbor *direct;
+};
+struct TokenizedMessageContext
+{
/**
- * Map of PeerIdentifiers to 'struct GNUNET_dv_neighbor*'s for
- * peers connected via DV (extended neighborhood). Does ALSO
- * include any peers that are in 'direct_neighbors'; for those
- * peers, the cost will be zero and the referrer all zeros.
+ * Immediate sender of this message
*/
- struct GNUNET_CONTAINER_MultiHashMap *extended_neighbors;
+ const struct GNUNET_PeerIdentity *peer;
/**
- * We use the min heap (min refers to cost) to prefer
- * gossipping about peers with small costs.
+ * Distant sender of the message
*/
- struct GNUNET_CONTAINER_Heap *neighbor_min_heap;
+ struct DistantNeighbor *distant;
/**
- * We use the max heap (max refers to cost) for general
- * iterations over all peers and to remove the most costly
- * connection if we have too many.
+ * Uid for this set of messages
*/
- struct GNUNET_CONTAINER_Heap *neighbor_max_heap;
+ uint32_t uid;
+};
- unsigned long long fisheye_depth;
+/**
+ * Context for finding the least cost peer to send to.
+ * Transport selection can only go so far.
+ */
+struct FindLeastCostContext
+{
+ struct DistantNeighbor *target;
+ unsigned int least_cost;
+};
- unsigned long long max_table_size;
+/**
+ * Handle to the core service api.
+ */
+static struct GNUNET_CORE_Handle *coreAPI;
- unsigned int neighbor_id_loc;
+/**
+ * Stream tokenizer to handle messages coming in from core.
+ */
+static struct GNUNET_SERVER_MessageStreamTokenizer *coreMST;
- int closing;
+/**
+ * The identity of our peer.
+ */
+static struct GNUNET_PeerIdentity my_identity;
-};
+/**
+ * The configuration for this service.
+ */
+static const struct GNUNET_CONFIGURATION_Handle *cfg;
-static struct GNUNET_DV_Context ctx;
-struct FindDestinationContext
-{
- unsigned int tid;
- struct DistantNeighbor *dest;
-};
+/**
+ * The client, the DV plugin connected to us. Hopefully
+ * this client will never change, although if the plugin dies
+ * and returns for some reason it may happen.
+ */
+static struct GNUNET_SERVER_Client *client_handle;
+
+/**
+ * Task to run when we shut down, cleaning up all our trash
+ */
+static GNUNET_SCHEDULER_TaskIdentifier cleanup_task;
+
+static size_t default_dv_priority = 0;
+
+static char *my_short_id;
+
+/**
+ * Transmit handle to the plugin.
+ */
+static struct GNUNET_CONNECTION_TransmitHandle *plugin_transmit_handle;
+
+/**
+ * Head of DLL for client messages
+ */
+static struct PendingMessage *plugin_pending_head;
+
+/**
+ * Tail of DLL for client messages
+ */
+static struct PendingMessage *plugin_pending_tail;
+
+/**
+ * Handle to the peerinfo service
+ */
+static struct GNUNET_PEERINFO_Handle *peerinfo_handle;
+
+/**
+ * Transmit handle to core service.
+ */
+static struct GNUNET_CORE_TransmitHandle *core_transmit_handle;
+
+/**
+ * Head of DLL for core messages
+ */
+static struct PendingMessage *core_pending_head;
+
+/**
+ * Tail of DLL for core messages
+ */
+static struct PendingMessage *core_pending_tail;
+
+/**
+ * Map of PeerIdentifiers to 'struct GNUNET_dv_neighbor*'s for all
+ * directly connected peers.
+ */
+static struct GNUNET_CONTAINER_MultiHashMap *direct_neighbors;
+
+/**
+ * Map of PeerIdentifiers to 'struct GNUNET_dv_neighbor*'s for
+ * peers connected via DV (extended neighborhood). Does ALSO
+ * include any peers that are in 'direct_neighbors'; for those
+ * peers, the cost will be zero and the referrer all zeros.
+ */
+static struct GNUNET_CONTAINER_MultiHashMap *extended_neighbors;
+
+/**
+ * We use the min heap (min refers to cost) to prefer
+ * gossipping about peers with small costs.
+ */
+static struct GNUNET_CONTAINER_Heap *neighbor_min_heap;
+
+/**
+ * We use the max heap (max refers to cost) for general
+ * iterations over all peers and to remove the most costly
+ * connection if we have too many.
+ */
+static struct GNUNET_CONTAINER_Heap *neighbor_max_heap;
+
+/**
+ * Handle for the statistics service.
+ */
+struct GNUNET_STATISTICS_Handle *stats;
+
+/**
+ * How far out to keep peers we learn about.
+ */
+static unsigned long long fisheye_depth;
+/**
+ * How many peers to store at most.
+ */
+static unsigned long long max_table_size;
/**
* We've been given a target ID based on the random numbers that
* respective neighbor.
*/
static int
-find_destination (void *cls,
- struct GNUNET_CONTAINER_HeapNode *node,
+find_destination (void *cls, struct GNUNET_CONTAINER_HeapNode *node,
void *element, GNUNET_CONTAINER_HeapCostType cost)
{
struct FindDestinationContext *fdc = cls;
return GNUNET_NO;
}
+
+/**
+ * We've been given a target ID based on the random numbers that
+ * we assigned to our DV-neighborhood. Find the entry for the
+ * respective neighbor.
+ */
+static int
+find_specific_id (void *cls, const GNUNET_HashCode * key, void *value)
+{
+ struct FindIDContext *fdc = cls;
+ struct DistantNeighbor *dn = value;
+
+ if (memcmp
+ (&dn->referrer->identity, fdc->via,
+ sizeof (struct GNUNET_PeerIdentity)) == 0)
+ {
+ fdc->tid = dn->referrer_id;
+ return GNUNET_NO;
+ }
+ return GNUNET_YES;
+}
+
+/**
+ * Find a distant peer whose referrer_id matches what we're
+ * looking for. For looking up a peer we've gossipped about
+ * but is now disconnected. Need to do this because we don't
+ * want to remove those that may be accessible via a different
+ * route.
+ */
+static int
+find_distant_peer (void *cls, const GNUNET_HashCode * key, void *value)
+{
+ struct FindDestinationContext *fdc = cls;
+ struct DistantNeighbor *distant = value;
+
+ if (fdc->tid == distant->referrer_id)
+ {
+ fdc->dest = distant;
+ return GNUNET_NO;
+ }
+ return GNUNET_YES;
+}
+
/**
* Function called to notify a client about the socket
* begin ready to queue more data. "buf" will be
* @param buf where the callee should write the message
* @return number of bytes written to buf
*/
-size_t transmit_to_plugin (void *cls,
- size_t size, void *buf)
+size_t
+transmit_to_plugin (void *cls, size_t size, void *buf)
{
char *cbuf = buf;
struct PendingMessage *reply;
size_t msize;
if (buf == NULL)
- {
- /* client disconnected */
-#if DEBUG_DV
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "`%s': buffer was NULL\n", "DHT");
+ {
+ /* client disconnected */
+#if DEBUG_DV_MESSAGES
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: %s buffer was NULL (client disconnect?)\n", my_short_id,
+ "transmit_to_plugin");
#endif
- return 0;
- }
+ return 0;
+ }
plugin_transmit_handle = NULL;
off = 0;
- while ( (NULL != (reply = plugin_pending_head)) &&
- (size >= off + (msize = ntohs (reply->msg->size))))
- {
-#if DEBUG_DV
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "`%s' : transmit_notify (plugin) called with size %d\n", "dv service", msize);
-#endif
- GNUNET_CONTAINER_DLL_remove (plugin_pending_head,
- plugin_pending_tail,
- reply);
- memcpy (&cbuf[off], reply->msg, msize);
- GNUNET_free (reply);
- off += msize;
- }
-
+ while ((NULL != (reply = plugin_pending_head)) &&
+ (size >= off + (msize = ntohs (reply->msg->size))))
+ {
+ GNUNET_CONTAINER_DLL_remove (plugin_pending_head, plugin_pending_tail,
+ reply);
+ memcpy (&cbuf[off], reply->msg, msize);
+ GNUNET_free (reply);
+ off += msize;
+ }
+
if (plugin_pending_head != NULL)
- plugin_transmit_handle = GNUNET_SERVER_notify_transmit_ready (client_handle,
- ntohs(plugin_pending_head->msg->size),
- GNUNET_TIME_UNIT_FOREVER_REL,
- &transmit_to_plugin, NULL);
+ plugin_transmit_handle =
+ GNUNET_SERVER_notify_transmit_ready (client_handle,
+ ntohs (plugin_pending_head->msg->
+ size),
+ GNUNET_TIME_UNIT_FOREVER_REL,
+ &transmit_to_plugin, NULL);
return off;
}
-
-void send_to_plugin(const struct GNUNET_PeerIdentity * sender,
- const struct GNUNET_MessageHeader *message,
- size_t message_size,
- struct GNUNET_PeerIdentity *distant_neighbor,
- size_t cost)
+/**
+ * Send a message to the dv plugin.
+ *
+ * @param sender the direct sender of the message
+ * @param message the message to send to the plugin
+ * (may be an encapsulated type)
+ * @param message_size the size of the message to be sent
+ * @param distant_neighbor the original sender of the message
+ * @param cost the cost to the original sender of the message
+ */
+void
+send_to_plugin (const struct GNUNET_PeerIdentity *sender,
+ const struct GNUNET_MessageHeader *message, size_t message_size,
+ struct GNUNET_PeerIdentity *distant_neighbor, size_t cost)
{
struct GNUNET_DV_MessageReceived *received_msg;
struct PendingMessage *pending_message;
-#if DEBUG_DV
- struct GNUNET_MessageHeader * packed_message_header;
- struct GNUNET_HELLO_Message *hello_msg;
- struct GNUNET_PeerIdentity hello_identity;
-#endif
char *sender_address;
size_t sender_address_len;
char *packed_msg_start;
int size;
#if DEBUG_DV
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "send_to_plugin called with peer %s as sender\n", GNUNET_i2s(distant_neighbor));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "send_to_plugin called with peer %s as sender\n",
+ GNUNET_i2s (distant_neighbor));
#endif
- if (memcmp(sender, distant_neighbor, sizeof(struct GNUNET_PeerIdentity)) != 0)
+ if (memcmp (sender, distant_neighbor, sizeof (struct GNUNET_PeerIdentity)) !=
+ 0)
{
- sender_address_len = sizeof(struct GNUNET_PeerIdentity) * 2;
- sender_address = GNUNET_malloc(sender_address_len);
- memcpy(sender_address, distant_neighbor, sizeof(struct GNUNET_PeerIdentity));
- memcpy(&sender_address[sizeof(struct GNUNET_PeerIdentity)], sender, sizeof(struct GNUNET_PeerIdentity));
+ sender_address_len = sizeof (struct GNUNET_PeerIdentity) * 2;
+ sender_address = GNUNET_malloc (sender_address_len);
+ memcpy (sender_address, distant_neighbor,
+ sizeof (struct GNUNET_PeerIdentity));
+ memcpy (&sender_address[sizeof (struct GNUNET_PeerIdentity)], sender,
+ sizeof (struct GNUNET_PeerIdentity));
}
else
{
- sender_address_len = sizeof(struct GNUNET_PeerIdentity);
- sender_address = GNUNET_malloc(sender_address_len);
- memcpy(sender_address, sender, sizeof(struct GNUNET_PeerIdentity));
+ sender_address_len = sizeof (struct GNUNET_PeerIdentity);
+ sender_address = GNUNET_malloc (sender_address_len);
+ memcpy (sender_address, sender, sizeof (struct GNUNET_PeerIdentity));
}
- size = sizeof(struct GNUNET_DV_MessageReceived) + sender_address_len + message_size;
- received_msg = GNUNET_malloc(size);
- received_msg->header.size = htons(size);
- received_msg->header.type = htons(GNUNET_MESSAGE_TYPE_TRANSPORT_DV_RECEIVE);
- received_msg->sender_address_len = htons(sender_address_len);
- received_msg->distance = htonl(cost);
- received_msg->msg_len = htons(message_size);
+ size =
+ sizeof (struct GNUNET_DV_MessageReceived) + sender_address_len +
+ message_size;
+ received_msg = GNUNET_malloc (size);
+ received_msg->header.size = htons (size);
+ received_msg->header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_DV_RECEIVE);
+ received_msg->distance = htonl (cost);
+ received_msg->msg_len = htonl (message_size);
/* Set the sender in this message to be the original sender! */
- memcpy(&received_msg->sender, distant_neighbor, sizeof(struct GNUNET_PeerIdentity));
+ memcpy (&received_msg->sender, distant_neighbor,
+ sizeof (struct GNUNET_PeerIdentity));
/* Copy the intermediate sender to the end of the message, this is how the transport identifies this peer */
- memcpy(&received_msg[1], sender_address, sender_address_len);
- GNUNET_free(sender_address);
+ memcpy (&received_msg[1], sender_address, sender_address_len);
+ GNUNET_free (sender_address);
/* Copy the actual message after the sender */
- packed_msg_start = (char *)&received_msg[1];
+ packed_msg_start = (char *) &received_msg[1];
packed_msg_start = &packed_msg_start[sender_address_len];
- memcpy(packed_msg_start, message, message_size);
-#if DEBUG_DV
- packed_message_header = (struct GNUNET_MessageHeader *)packed_msg_start;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "dv service created received message. sender_address_len %lu, packed message len %d, total len %d\n", sender_address_len, ntohs(received_msg->msg_len), ntohs(received_msg->header.size));
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "dv packed message len %d, type %d\n", ntohs(packed_message_header->size), ntohs(packed_message_header->type));
- if (ntohs(packed_message_header->type) == GNUNET_MESSAGE_TYPE_HELLO)
- {
- hello_msg = (struct GNUNET_HELLO_Message *)packed_message_header;
- GNUNET_assert(GNUNET_OK == GNUNET_HELLO_get_id(hello_msg, &hello_identity));
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Packed HELLO message is about peer %s\n", GNUNET_i2s(&hello_identity));
- }
-#endif
- pending_message = GNUNET_malloc(sizeof(struct PendingMessage) + size);
- pending_message->msg = (struct GNUNET_MessageHeader *)&pending_message[1];
- memcpy(&pending_message[1], received_msg, size);
- GNUNET_free(received_msg);
+ memcpy (packed_msg_start, message, message_size);
+ pending_message = GNUNET_malloc (sizeof (struct PendingMessage) + size);
+ pending_message->msg = (struct GNUNET_MessageHeader *) &pending_message[1];
+ memcpy (&pending_message[1], received_msg, size);
+ GNUNET_free (received_msg);
- GNUNET_CONTAINER_DLL_insert_after(plugin_pending_head, plugin_pending_tail, plugin_pending_tail, pending_message);
+ GNUNET_CONTAINER_DLL_insert_after (plugin_pending_head, plugin_pending_tail,
+ plugin_pending_tail, pending_message);
if (client_handle != NULL)
+ {
+ if (plugin_transmit_handle == NULL)
{
- if (plugin_transmit_handle == NULL)
- {
- plugin_transmit_handle = GNUNET_SERVER_notify_transmit_ready (client_handle,
- size, GNUNET_TIME_UNIT_FOREVER_REL,
- &transmit_to_plugin, NULL);
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failed to queue message for plugin, must be one in progress already!!\n");
- }
+ plugin_transmit_handle =
+ GNUNET_SERVER_notify_transmit_ready (client_handle, size,
+ GNUNET_TIME_UNIT_FOREVER_REL,
+ &transmit_to_plugin, NULL);
}
+ }
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Failed to queue message for plugin, client_handle not yet set (how?)!\n");
+ }
+}
+
+/* Declare here so retry_core_send is aware of it */
+size_t
+core_transmit_notify (void *cls, size_t size, void *buf);
+
+/**
+ * Try to send another message from our core sending list
+ */
+static void
+try_core_send (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct PendingMessage *pending;
+
+ pending = core_pending_head;
+
+ if (core_transmit_handle != NULL)
+ return; /* Message send already in progress */
+
+ if ((pending != NULL) && (coreAPI != NULL))
+ core_transmit_handle =
+ GNUNET_CORE_notify_transmit_ready (coreAPI, GNUNET_YES,
+ pending->importance,
+ pending->timeout,
+ &pending->recipient,
+ pending->msg_size,
+ &core_transmit_notify, NULL);
}
/**
* Function called to notify a client about the socket
- * begin ready to queue more data. "buf" will be
+ * being ready to queue more data. "buf" will be
* NULL and "size" zero if the socket was closed for
* writing in the meantime.
*
- * @param cls closure
+ * @param cls closure (NULL)
* @param size number of bytes available in buf
* @param buf where the callee should write the message
* @return number of bytes written to buf
*/
-size_t core_transmit_notify (void *cls,
- size_t size, void *buf)
+size_t
+core_transmit_notify (void *cls, size_t size, void *buf)
{
char *cbuf = buf;
- struct PendingMessage *reply;
+ struct PendingMessage *pending;
+ struct PendingMessage *client_reply;
size_t off;
size_t msize;
if (buf == NULL)
- {
- /* client disconnected */
+ {
+ /* client disconnected */
#if DEBUG_DV
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "`%s': buffer was NULL\n", "DHT");
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "`%s': buffer was NULL\n", "DHT");
#endif
- return 0;
- }
+ return 0;
+ }
core_transmit_handle = NULL;
off = 0;
- while ( (NULL != (reply = core_pending_head)) &&
- (size >= off + (msize = ntohs (reply->msg->size))))
- {
+ pending = core_pending_head;
+ if ((pending != NULL) && (size >= (msize = ntohs (pending->msg->size))))
+ {
#if DEBUG_DV
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "`%s' : transmit_notify (core) called with size %d\n", "dv service", msize);
-#endif
- GNUNET_CONTAINER_DLL_remove (core_pending_head,
- core_pending_tail,
- reply);
- memcpy (&cbuf[off], reply->msg, msize);
- GNUNET_free (reply);
- off += msize;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "`%s' : transmit_notify (core) called with size %d\n",
+ "dv service", msize);
+#endif
+ GNUNET_CONTAINER_DLL_remove (core_pending_head, core_pending_tail, pending);
+ if (pending->send_result != NULL) /* Will only be non-null if a real client asked for this send */
+ {
+ client_reply =
+ GNUNET_malloc (sizeof (struct PendingMessage) +
+ sizeof (struct GNUNET_DV_SendResultMessage));
+ client_reply->msg = (struct GNUNET_MessageHeader *) &client_reply[1];
+ memcpy (&client_reply[1], pending->send_result,
+ sizeof (struct GNUNET_DV_SendResultMessage));
+ GNUNET_free (pending->send_result);
+
+ GNUNET_CONTAINER_DLL_insert_after (plugin_pending_head,
+ plugin_pending_tail,
+ plugin_pending_tail, client_reply);
+ if (client_handle != NULL)
+ {
+ if (plugin_transmit_handle == NULL)
+ {
+ plugin_transmit_handle =
+ GNUNET_SERVER_notify_transmit_ready (client_handle,
+ sizeof (struct
+ GNUNET_DV_SendResultMessage),
+ GNUNET_TIME_UNIT_FOREVER_REL,
+ &transmit_to_plugin, NULL);
+ }
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Failed to queue message for plugin, must be one in progress already!!\n");
+ }
+ }
}
+ memcpy (&cbuf[off], pending->msg, msize);
+ GNUNET_free (pending);
+ off += msize;
+ }
+ /*reply = core_pending_head; */
+
+ GNUNET_SCHEDULER_add_now (&try_core_send, NULL);
+ /*if (reply != NULL)
+ * core_transmit_handle = GNUNET_CORE_notify_transmit_ready(coreAPI, GNUNET_YES, reply->importance, reply->timeout, &reply->recipient, reply->msg_size, &core_transmit_notify, NULL); */
+
return off;
}
* Send a DV data message via DV.
*
* @param sender the original sender of the message
- * @param specific_neighbor the specific DistantNeighbor to use, complete with referrer!
- * @param message the packed message
- * @param importance what priority to send this message with
- * @param timeout how long to possibly delay sending this message
+ * @param recipient the next hop recipient, may be our direct peer, maybe not
+ * @param send_context the send context
*/
static int
-send_message_via (const struct GNUNET_PeerIdentity * sender,
- const struct DistantNeighbor * specific_neighbor,
- struct DV_SendContext *send_context)
+send_message_via (const struct GNUNET_PeerIdentity *sender,
+ const struct GNUNET_PeerIdentity *recipient,
+ struct DV_SendContext *send_context)
{
p2p_dv_MESSAGE_Data *toSend;
unsigned int msg_size;
- unsigned int cost;
unsigned int recipient_id;
unsigned int sender_id;
struct DistantNeighbor *source;
struct PendingMessage *pending_message;
+ struct FindIDContext find_context;
+
#if DEBUG_DV
char shortname[5];
#endif
msg_size = send_context->message_size + sizeof (p2p_dv_MESSAGE_Data);
- if (specific_neighbor == NULL)
- {
- /* target unknown to us, drop! */
- return GNUNET_SYSERR;
- }
- recipient_id = specific_neighbor->referrer_id;
+ find_context.dest = send_context->distant_peer;
+ find_context.via = recipient;
+ find_context.tid = 0;
+ GNUNET_CONTAINER_multihashmap_get_multiple (extended_neighbors,
+ &send_context->
+ distant_peer->hashPubKey,
+ &find_specific_id, &find_context);
- source = GNUNET_CONTAINER_multihashmap_get (ctx.extended_neighbors,
- &sender->hashPubKey);
- if (source == NULL)
- {
- if (0 != (memcmp (&my_identity,
- sender, sizeof (struct GNUNET_PeerIdentity))))
- {
- /* sender unknown to us, drop! */
- return GNUNET_SYSERR;
- }
- sender_id = 0; /* 0 == us */
- }
+ if (find_context.tid == 0)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "%s: find_specific_id failed to find peer!\n", my_short_id);
+ /* target unknown to us, drop! */
+ return GNUNET_SYSERR;
+ }
+ recipient_id = find_context.tid;
+
+ if (0 == (memcmp (&my_identity, sender, sizeof (struct GNUNET_PeerIdentity))))
+ {
+ sender_id = 0;
+ source =
+ GNUNET_CONTAINER_multihashmap_get (extended_neighbors,
+ &sender->hashPubKey);
+ if (source != NULL)
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "%s: send_message_via found %s, myself in extended peer list???\n",
+ my_short_id, GNUNET_i2s (&source->identity));
+ }
else
+ {
+ source =
+ GNUNET_CONTAINER_multihashmap_get (extended_neighbors,
+ &sender->hashPubKey);
+ if (source == NULL)
{
- /* find out the number that we use when we gossip about
- the sender */
- sender_id = source->our_id;
+ /* sender unknown to us, drop! */
+ return GNUNET_SYSERR;
}
+ sender_id = source->our_id;
+ }
- cost = specific_neighbor->cost;
- pending_message = GNUNET_malloc(sizeof(struct PendingMessage) + msg_size);
- pending_message->msg = (struct GNUNET_MessageHeader *)&pending_message[1];
- toSend = (p2p_dv_MESSAGE_Data *)pending_message->msg;
+ pending_message = GNUNET_malloc (sizeof (struct PendingMessage) + msg_size);
+ pending_message->msg = (struct GNUNET_MessageHeader *) &pending_message[1];
+ pending_message->send_result = send_context->send_result;
+ memcpy (&pending_message->recipient, recipient,
+ sizeof (struct GNUNET_PeerIdentity));
+ pending_message->msg_size = msg_size;
+ pending_message->importance = send_context->importance;
+ pending_message->timeout = send_context->timeout;
+ toSend = (p2p_dv_MESSAGE_Data *) pending_message->msg;
toSend->header.size = htons (msg_size);
toSend->header.type = htons (GNUNET_MESSAGE_TYPE_DV_DATA);
toSend->sender = htonl (sender_id);
toSend->recipient = htonl (recipient_id);
+#if DEBUG_DV_MESSAGES
+ toSend->uid = send_context->uid; /* Still sent around in network byte order */
+#else
+ toSend->uid = htonl (0);
+#endif
+
memcpy (&toSend[1], send_context->message, send_context->message_size);
#if DEBUG_DV
- memcpy(&shortname, GNUNET_i2s(&specific_neighbor->identity), 4);
+ memcpy (&shortname, GNUNET_i2s (send_context->distant_peer), 4);
shortname[4] = '\0';
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "%s: Notifying core of send to destination `%s' via `%s' size %u\n", "DV", &shortname, GNUNET_i2s(&specific_neighbor->referrer->identity), msg_size);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: Notifying core of send to destination `%s' via `%s' size %u\n",
+ "DV", &shortname, GNUNET_i2s (recipient), msg_size);
#endif
- GNUNET_CONTAINER_DLL_insert_after (core_pending_head,
- core_pending_tail,
- core_pending_tail,
- pending_message);
- if (core_transmit_handle == NULL)
- core_transmit_handle = GNUNET_CORE_notify_transmit_ready(coreAPI, send_context->importance, send_context->timeout, &specific_neighbor->referrer->identity, msg_size, &core_transmit_notify, NULL);
- else
- GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`%s': Failed to schedule pending transmission (must be one in progress!)\n", "dv service");
+ GNUNET_CONTAINER_DLL_insert_after (core_pending_head, core_pending_tail,
+ core_pending_tail, pending_message);
- return (int) cost;
+ GNUNET_SCHEDULER_add_now (try_core_send, NULL);
+
+ return GNUNET_YES;
}
+/**
+ * Given a FindLeastCostContext, and a set
+ * of peers that match the target, return the cheapest.
+ *
+ * @param cls closure, a struct FindLeastCostContext
+ * @param key the key identifying the target peer
+ * @param value the target peer
+ *
+ * @return GNUNET_YES to continue iteration, GNUNET_NO to stop
+ */
+static int
+find_least_cost_peer (void *cls, const GNUNET_HashCode * key, void *value)
+{
+ struct FindLeastCostContext *find_context = cls;
+ struct DistantNeighbor *dn = value;
+
+ if (dn->cost < find_context->least_cost)
+ {
+ find_context->target = dn;
+ }
+ if (dn->cost == DIRECT_NEIGHBOR_COST)
+ return GNUNET_NO;
+ return GNUNET_YES;
+}
/**
* Send a DV data message via DV.
* @param sender the original sender of the message
* @param specific_neighbor the specific neighbor to send this message via
* @param message the packed message
+ * @param message_size size of the message
* @param importance what priority to send this message with
+ * @param uid the unique identifier of this message (or 0 for none)
* @param timeout how long to possibly delay sending this message
*/
static int
-send_message (const struct GNUNET_PeerIdentity * recipient,
- const struct GNUNET_PeerIdentity * sender,
- const struct DistantNeighbor * specific_neighbor,
- const struct GNUNET_MessageHeader * message,
- size_t message_size,
- unsigned int importance, struct GNUNET_TIME_Relative timeout)
+send_message (const struct GNUNET_PeerIdentity *recipient,
+ const struct GNUNET_PeerIdentity *sender,
+ const struct DistantNeighbor *specific_neighbor,
+ const struct GNUNET_MessageHeader *message, size_t message_size,
+ unsigned int importance, unsigned int uid,
+ struct GNUNET_TIME_Relative timeout)
{
p2p_dv_MESSAGE_Data *toSend;
unsigned int msg_size;
struct DistantNeighbor *target;
struct DistantNeighbor *source;
struct PendingMessage *pending_message;
+ struct FindLeastCostContext find_least_ctx;
+#if DEBUG_DV_PEER_NUMBERS
+ struct GNUNET_CRYPTO_HashAsciiEncoded encPeerFrom;
+ struct GNUNET_CRYPTO_HashAsciiEncoded encPeerTo;
+ struct GNUNET_CRYPTO_HashAsciiEncoded encPeerVia;
+#endif
msg_size = message_size + sizeof (p2p_dv_MESSAGE_Data);
- target = GNUNET_CONTAINER_multihashmap_get (ctx.extended_neighbors,
- &recipient->hashPubKey);
+ find_least_ctx.least_cost = -1;
+ find_least_ctx.target = NULL;
+ /*
+ * Need to find the least cost peer, lest the transport selection keep
+ * picking the same DV route for the same destination which results
+ * in messages looping forever. Relatively cheap, we don't iterate
+ * over all known peers, just those that apply.
+ */
+ GNUNET_CONTAINER_multihashmap_get_multiple (extended_neighbors,
+ &recipient->hashPubKey,
+ &find_least_cost_peer,
+ &find_least_ctx);
+ target = find_least_ctx.target;
+
if (target == NULL)
- {
- /* target unknown to us, drop! */
- return GNUNET_SYSERR;
- }
+ {
+ /* target unknown to us, drop! */
+ return GNUNET_SYSERR;
+ }
recipient_id = target->referrer_id;
- source = GNUNET_CONTAINER_multihashmap_get (ctx.extended_neighbors,
- &sender->hashPubKey);
+ source =
+ GNUNET_CONTAINER_multihashmap_get (extended_neighbors,
+ &sender->hashPubKey);
if (source == NULL)
+ {
+ if (0 !=
+ (memcmp (&my_identity, sender, sizeof (struct GNUNET_PeerIdentity))))
{
- if (0 != (memcmp (&my_identity,
- sender, sizeof (struct GNUNET_PeerIdentity))))
- {
- /* sender unknown to us, drop! */
- return GNUNET_SYSERR;
- }
- sender_id = 0; /* 0 == us */
+ /* sender unknown to us, drop! */
+ return GNUNET_SYSERR;
}
+ sender_id = 0; /* 0 == us */
+ }
else
- {
- /* find out the number that we use when we gossip about
- the sender */
- sender_id = source->our_id;
- }
+ {
+ /* find out the number that we use when we gossip about
+ * the sender */
+ sender_id = source->our_id;
+ }
+
+#if DEBUG_DV_PEER_NUMBERS
+ GNUNET_CRYPTO_hash_to_enc (&source->identity.hashPubKey, &encPeerFrom);
+ GNUNET_CRYPTO_hash_to_enc (&target->referrer->identity.hashPubKey,
+ &encPeerVia);
+ encPeerFrom.encoding[4] = '\0';
+ encPeerVia.encoding[4] = '\0';
+#endif
+ if ((sender_id != 0) &&
+ (0 ==
+ memcmp (&source->identity, &target->referrer->identity,
+ sizeof (struct GNUNET_PeerIdentity))))
+ {
+ return 0;
+ }
cost = target->cost;
- pending_message = GNUNET_malloc(sizeof(struct PendingMessage) + msg_size);
- pending_message->msg = (struct GNUNET_MessageHeader *)&pending_message[1];
- toSend = (p2p_dv_MESSAGE_Data *)pending_message->msg;
+ pending_message = GNUNET_malloc (sizeof (struct PendingMessage) + msg_size);
+ pending_message->msg = (struct GNUNET_MessageHeader *) &pending_message[1];
+ pending_message->send_result = NULL;
+ pending_message->importance = importance;
+ pending_message->timeout = timeout;
+ memcpy (&pending_message->recipient, &target->referrer->identity,
+ sizeof (struct GNUNET_PeerIdentity));
+ pending_message->msg_size = msg_size;
+ toSend = (p2p_dv_MESSAGE_Data *) pending_message->msg;
toSend->header.size = htons (msg_size);
toSend->header.type = htons (GNUNET_MESSAGE_TYPE_DV_DATA);
toSend->sender = htonl (sender_id);
toSend->recipient = htonl (recipient_id);
- memcpy (&toSend[1], message, message_size);
+#if DEBUG_DV_MESSAGES
+ toSend->uid = htonl (uid);
+#else
+ toSend->uid = htonl (0);
+#endif
- GNUNET_CONTAINER_DLL_insert_after (core_pending_head,
- core_pending_tail,
- core_pending_tail,
- pending_message);
+#if DEBUG_DV_PEER_NUMBERS
+ GNUNET_CRYPTO_hash_to_enc (&target->identity.hashPubKey, &encPeerTo);
+ encPeerTo.encoding[4] = '\0';
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: Sending DATA message. Sender id %u, source %s, destination %s, via %s\n",
+ GNUNET_i2s (&my_identity), sender_id, &encPeerFrom, &encPeerTo,
+ &encPeerVia);
+#endif
+ memcpy (&toSend[1], message, message_size);
+ if ((source != NULL) && (source->pkey == NULL)) /* Test our hypothesis about message failures! */
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "%s: Sending message, but anticipate recipient will not know sender!!!\n\n\n",
+ my_short_id);
+ }
+ GNUNET_CONTAINER_DLL_insert_after (core_pending_head, core_pending_tail,
+ core_pending_tail, pending_message);
#if DEBUG_DV
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "%s: Notifying core of send size %d to destination `%s'\n", "DV SEND MESSAGE", msg_size, GNUNET_i2s(recipient));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: Notifying core of send size %d to destination `%s'\n",
+ "DV SEND MESSAGE", msg_size, GNUNET_i2s (recipient));
#endif
- if (core_transmit_handle == NULL)
- core_transmit_handle = GNUNET_CORE_notify_transmit_ready(coreAPI, importance, timeout, &target->referrer->identity, msg_size, &core_transmit_notify, NULL);
+ GNUNET_SCHEDULER_add_now (try_core_send, NULL);
return (int) cost;
}
+#if USE_PEER_ID
+struct CheckPeerContext
+{
+ /**
+ * Peer we found
+ */
+ struct DistantNeighbor *peer;
+
+ /**
+ * Sender id to search for
+ */
+ unsigned int sender_id;
+};
+
+/**
+ * Iterator over hash map entries.
+ *
+ * @param cls closure
+ * @param key current key code
+ * @param value value in the hash map
+ * @return GNUNET_YES if we should continue to
+ * iterate,
+ * GNUNET_NO if not.
+ */
+int
+checkPeerID (void *cls, const GNUNET_HashCode * key, void *value)
+{
+ struct CheckPeerContext *ctx = cls;
+ struct DistantNeighbor *distant = value;
+
+ if (memcmp (key, &ctx->sender_id, sizeof (unsigned int)) == 0)
+ {
+ ctx->peer = distant;
+ return GNUNET_NO;
+ }
+ return GNUNET_YES;
+
+}
+#endif
+
+
+/**
+ * Handler for messages parsed out by the tokenizer from
+ * DV DATA received for this peer.
+ *
+ * @param cls NULL
+ * @param client the TokenizedMessageContext which contains message information
+ * @param message the actual message
+ */
+void
+tokenized_message_handler (void *cls, void *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ struct TokenizedMessageContext *ctx = client;
+
+ GNUNET_break_op (ntohs (message->type) != GNUNET_MESSAGE_TYPE_DV_GOSSIP);
+ GNUNET_break_op (ntohs (message->type) != GNUNET_MESSAGE_TYPE_DV_DATA);
+ if ((ntohs (message->type) != GNUNET_MESSAGE_TYPE_DV_GOSSIP) &&
+ (ntohs (message->type) != GNUNET_MESSAGE_TYPE_DV_DATA))
+ {
+#if DEBUG_DV_MESSAGES
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: Receives %s message for me, uid %u, size %d, type %d cost %u from %s!\n",
+ my_short_id, "DV DATA", ctx->uid, ntohs (message->size),
+ ntohs (message->type), ctx->distant->cost,
+ GNUNET_i2s (&ctx->distant->identity));
+#endif
+ GNUNET_assert (memcmp
+ (ctx->peer, &ctx->distant->identity,
+ sizeof (struct GNUNET_PeerIdentity)) != 0);
+ send_to_plugin (ctx->peer, message, ntohs (message->size),
+ &ctx->distant->identity, ctx->distant->cost);
+ }
+}
+
+#if DELAY_FORWARDS
+struct DelayedMessageContext
+{
+ struct GNUNET_PeerIdentity dest;
+ struct GNUNET_PeerIdentity sender;
+ struct GNUNET_MessageHeader *message;
+ size_t message_size;
+ uint32_t uid;
+};
+
+void
+send_message_delayed (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct DelayedMessageContext *msg_ctx = cls;
+
+ if (msg_ctx != NULL)
+ {
+ send_message (&msg_ctx->dest, &msg_ctx->sender, NULL, msg_ctx->message,
+ msg_ctx->message_size, default_dv_priority, msg_ctx->uid,
+ GNUNET_TIME_relative_get_forever ());
+ GNUNET_free (msg_ctx->message);
+ GNUNET_free (msg_ctx);
+ }
+}
+#endif
+
+/**
+ * Get distance information from 'atsi'.
+ *
+ * @param atsi performance data
+ * @param atsi_count number of entries in atsi
+ * @return connected transport distance
+ */
+static uint32_t
+get_atsi_distance (const struct GNUNET_ATS_Information *atsi,
+ unsigned int atsi_count)
+{
+ unsigned int i;
+
+ for (i = 0; i < atsi_count; i++)
+ if (ntohl (atsi[i].type) == GNUNET_ATS_QUALITY_NET_DISTANCE)
+ return ntohl (atsi->value);
+ /* FIXME: we do not have distance data? Assume direct neighbor. */
+ return DIRECT_NEIGHBOR_COST;
+}
+
+/**
+ * Find latency information in 'atsi'.
+ *
+ * @param atsi performance data
+ * @param atsi_count number of entries in atsi
+ * @return connection latency
+ */
+static struct GNUNET_TIME_Relative
+get_atsi_latency (const struct GNUNET_ATS_Information *atsi,
+ unsigned int atsi_count)
+{
+ unsigned int i;
+
+ for (i = 0; i < atsi_count; i++)
+ if (ntohl (atsi[i].type) == GNUNET_ATS_QUALITY_NET_DELAY)
+ return GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
+ ntohl (atsi->value));
+ GNUNET_break (0);
+ /* how can we not have latency data? */
+ return GNUNET_TIME_UNIT_SECONDS;
+}
/**
* Core handler for dv data messages. Whatever this message
* @param cls closure
* @param peer peer which sent the message (immediate sender)
* @param message the message
- * @param latency the latency of the connection we received the message from
- * @param distance the distance to the immediate peer
- */
-static int handle_dv_data_message (void *cls,
- const struct GNUNET_PeerIdentity * peer,
- const struct GNUNET_MessageHeader * message,
- struct GNUNET_TIME_Relative latency,
- uint32_t distance)
+ * @param atsi transport ATS information (latency, distance, etc.)
+ * @param atsi_count number of entries in atsi
+ */
+static int
+handle_dv_data_message (void *cls, const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_MessageHeader *message,
+ const struct GNUNET_ATS_Information *atsi,
+ unsigned int atsi_count)
{
const p2p_dv_MESSAGE_Data *incoming = (const p2p_dv_MESSAGE_Data *) message;
const struct GNUNET_MessageHeader *packed_message;
struct DistantNeighbor *pos;
unsigned int sid; /* Sender id */
unsigned int tid; /* Target id */
- struct GNUNET_PeerIdentity original_sender;
- struct GNUNET_PeerIdentity destination;
+ struct GNUNET_PeerIdentity *original_sender;
+ struct GNUNET_PeerIdentity *destination;
struct FindDestinationContext fdc;
+ struct TokenizedMessageContext tkm_ctx;
+ int i;
+ int found_pos;
+
+#if DELAY_FORWARDS
+ struct DelayedMessageContext *delayed_context;
+#endif
+#if USE_PEER_ID
+ struct CheckPeerContext checkPeerCtx;
+#endif
+#if DEBUG_DV_MESSAGES
+ char *sender_id;
+#endif
int ret;
size_t packed_message_size;
char *cbuf;
- size_t offset;
-
- packed_message_size = ntohs(incoming->header.size) - sizeof(p2p_dv_MESSAGE_Data);
+ uint32_t distance; /* Distance information */
+ struct GNUNET_TIME_Relative latency; /* Latency information */
+ packed_message_size =
+ ntohs (incoming->header.size) - sizeof (p2p_dv_MESSAGE_Data);
#if DEBUG_DV
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "%s: Receives %s message size %d, packed message size %d!\n", "dv", "DV DATA", ntohs(incoming->header.size), packed_message_size);
+ "%s: Receives DATA message from %s size %d, packed size %d!\n",
+ my_short_id, GNUNET_i2s (peer), ntohs (incoming->header.size),
+ packed_message_size);
#endif
- if (ntohs (incoming->header.size) < sizeof (p2p_dv_MESSAGE_Data) + sizeof (struct GNUNET_MessageHeader))
- {
+
+ if (ntohs (incoming->header.size) <
+ sizeof (p2p_dv_MESSAGE_Data) + sizeof (struct GNUNET_MessageHeader))
+ {
#if DEBUG_DV
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "`%s': Message sizes don't add up, total size %u, expected at least %u!\n", "dv service", ntohs(incoming->header.size), sizeof (p2p_dv_MESSAGE_Data) + sizeof (struct GNUNET_MessageHeader));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "`%s': Message sizes don't add up, total size %u, expected at least %u!\n",
+ "dv service", ntohs (incoming->header.size),
+ sizeof (p2p_dv_MESSAGE_Data) +
+ sizeof (struct GNUNET_MessageHeader));
#endif
- return GNUNET_SYSERR;
- }
+ return GNUNET_SYSERR;
+ }
- dn = GNUNET_CONTAINER_multihashmap_get (ctx.direct_neighbors,
- &peer->hashPubKey);
+ /* Iterate over ATS_Information to get distance and latency */
+ latency = get_atsi_latency (atsi, atsi_count);
+ distance = get_atsi_distance (atsi, atsi_count);
+ dn = GNUNET_CONTAINER_multihashmap_get (direct_neighbors, &peer->hashPubKey);
if (dn == NULL)
- {
-#if DEBUG_DV
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "%s: dn NULL!\n", "dv");
-#endif
- return GNUNET_OK;
- }
+ return GNUNET_OK;
+
sid = ntohl (incoming->sender);
+#if USE_PEER_ID
+ if (sid != 0)
+ {
+ checkPeerCtx.sender_id = sid;
+ checkPeerCtx.peer = NULL;
+ GNUNET_CONTAINER_multihashmap_iterate (extended_neighbors, &checkPeerID,
+ &checkPeerCtx);
+ pos = checkPeerCtx.peer;
+ }
+ else
+ {
+ pos =
+ GNUNET_CONTAINER_multihashmap_get (extended_neighbors,
+ &peer->hashPubKey);
+ }
+#else
pos = dn->referee_head;
while ((NULL != pos) && (pos->referrer_id != sid))
pos = pos->next;
+#endif
+
if (pos == NULL)
+ {
+#if DEBUG_DV_MESSAGES
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: unknown sender (%u), Message uid %u from %s!\n",
+ my_short_id, ntohl (incoming->sender), ntohl (incoming->uid),
+ GNUNET_i2s (&dn->identity));
+ pos = dn->referee_head;
+ while ((NULL != pos) && (pos->referrer_id != sid))
{
-#if DEBUG_DV
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "%s: unknown sender (%d), size of extended_peers is %d!\n", "dv", ntohl(incoming->sender), GNUNET_CONTAINER_multihashmap_size (ctx.extended_neighbors));
-#endif
- /* unknown sender */
- return GNUNET_OK;
+ sender_id = GNUNET_strdup (GNUNET_i2s (&pos->identity));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "I know sender %u %s\n",
+ pos->referrer_id, sender_id);
+ GNUNET_free (sender_id);
+ pos = pos->next;
}
- original_sender = pos->identity;
- tid = ntohl (incoming->recipient);
- if (tid == 0)
- {
- /* 0 == us */
+#endif
- cbuf = (char *)&incoming[1];
- offset = 0;
- while(offset < packed_message_size)
- {
- packed_message = (struct GNUNET_MessageHeader *)&cbuf[offset];
-#if DEBUG_DV
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "%s: Receives %s message for me, size %d type %d!\n", "dv", "DV DATA", ntohs(packed_message->size), ntohs(packed_message->type));
-#endif
- GNUNET_break_op (ntohs (packed_message->type) != GNUNET_MESSAGE_TYPE_DV_GOSSIP);
- GNUNET_break_op (ntohs (packed_message->type) != GNUNET_MESSAGE_TYPE_DV_DATA);
- if ( (ntohs (packed_message->type) != GNUNET_MESSAGE_TYPE_DV_GOSSIP) &&
- (ntohs (packed_message->type) != GNUNET_MESSAGE_TYPE_DV_DATA) )
- {
- send_to_plugin(peer, packed_message, ntohs(packed_message->size), &pos->identity, pos->cost);
- }
- offset += ntohs(packed_message->size);
- }
+ found_pos = -1;
+ for (i = 0; i < MAX_OUTSTANDING_MESSAGES; i++)
+ {
+ if (dn->pending_messages[i].sender_id == 0)
+ {
+ found_pos = i;
+ break;
+ }
+ }
- return GNUNET_OK;
+ if (found_pos == -1)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "%s: Too many unknown senders (%u), ignoring message! Message uid %llu from %s!\n",
+ my_short_id, ntohl (incoming->sender), ntohl (incoming->uid),
+ GNUNET_i2s (&dn->identity));
}
- else
+ else
{
- packed_message = (struct GNUNET_MessageHeader *)&incoming[1];
+ dn->pending_messages[found_pos].message =
+ GNUNET_malloc (ntohs (message->size));
+ memcpy (dn->pending_messages[found_pos].message, message,
+ ntohs (message->size));
+ dn->pending_messages[found_pos].distance = distance;
+ dn->pending_messages[found_pos].latency = latency;
+ memcpy (&dn->pending_messages[found_pos].sender, peer,
+ sizeof (struct GNUNET_PeerIdentity));
+ dn->pending_messages[found_pos].sender_id = sid;
}
-
- /* FIXME: this is the *only* per-request operation we have in DV
- that is O(n) in relation to the number of connected peers; a
- hash-table lookup could easily solve this (minor performance
- issue) */
+ /* unknown sender */
+ return GNUNET_OK;
+ }
+ original_sender = &pos->identity;
+ tid = ntohl (incoming->recipient);
+ if (tid == 0)
+ {
+ /* 0 == us */
+ cbuf = (char *) &incoming[1];
+
+ tkm_ctx.peer = peer;
+ tkm_ctx.distant = pos;
+ tkm_ctx.uid = ntohl (incoming->uid);
+ if (GNUNET_OK !=
+ GNUNET_SERVER_mst_receive (coreMST, &tkm_ctx, cbuf, packed_message_size,
+ GNUNET_NO, GNUNET_NO))
+ {
+ GNUNET_break_op (0);
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "%s: %s Received corrupt data, discarding!", my_short_id,
+ "DV SERVICE");
+ }
+ return GNUNET_OK;
+ }
+ else
+ {
+ packed_message = (struct GNUNET_MessageHeader *) &incoming[1];
+ }
+
+ /* FIXME: this is the *only* per-request operation we have in DV
+ * that is O(n) in relation to the number of connected peers; a
+ * hash-table lookup could easily solve this (minor performance
+ * issue) */
fdc.tid = tid;
fdc.dest = NULL;
- GNUNET_CONTAINER_heap_iterate (ctx.neighbor_max_heap,
- &find_destination, &fdc);
+ GNUNET_CONTAINER_heap_iterate (neighbor_max_heap, &find_destination, &fdc);
#if DEBUG_DV
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "%s: Receives %s message for someone else!\n", "dv", "DV DATA");
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: Receives %s message for someone else!\n", "dv", "DV DATA");
#endif
if (fdc.dest == NULL)
- {
- return GNUNET_OK;
- }
- destination = fdc.dest->identity;
+ {
+#if DEBUG_DV_MESSAGES
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: Receives %s message uid %u for someone we don't know (id %u)!\n",
+ my_short_id, "DV DATA", ntohl (incoming->uid), tid);
+#endif
+ return GNUNET_OK;
+ }
+ destination = &fdc.dest->identity;
- if (0 == memcmp (&destination, peer, sizeof (struct GNUNET_PeerIdentity)))
- {
- /* FIXME: create stat: routing loop-discard! */
-#if DEBUG_DV
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "\n\n\nLoopy loo message\n\n\n");
+ if (0 == memcmp (destination, peer, sizeof (struct GNUNET_PeerIdentity)))
+ {
+ /* FIXME: create stat: routing loop-discard! */
+
+#if DEBUG_DV_MESSAGES
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: DROPPING MESSAGE uid %u type %d, routing loop! Message immediately from %s!\n",
+ my_short_id, ntohl (incoming->uid),
+ ntohs (packed_message->type), GNUNET_i2s (&dn->identity));
#endif
- return GNUNET_OK;
- }
+ return GNUNET_OK;
+ }
/* At this point we have a message, and we need to forward it on to the
* next DV hop.
*/
- /* FIXME: Can't send message on, we have to behave.
- * We have to tell core we have a message for the next peer, and let
- * transport do transport selection on how to get this message to 'em */
- /*ret = send_message (&destination,
- &original_sender,
- packed_message, DV_PRIORITY, DV_DELAY);*/
-#if DEBUG_DV
+#if DEBUG_DV_MESSAGES
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "%s: Sends message size %d on!\n", "dv", packed_message_size);
+ "%s: FORWARD %s message for %s, uid %u, size %d type %d, cost %u!\n",
+ my_short_id, "DV DATA", GNUNET_i2s (destination),
+ ntohl (incoming->uid), ntohs (packed_message->size),
+ ntohs (packed_message->type), pos->cost);
#endif
- ret = send_message(&destination, &original_sender, NULL, packed_message, packed_message_size, default_dv_priority, default_dv_delay);
+#if DELAY_FORWARDS
+ if (GNUNET_TIME_absolute_get_duration (pos->last_gossip).abs_value <
+ GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2).abs_value)
+ {
+ delayed_context = GNUNET_malloc (sizeof (struct DelayedMessageContext));
+ memcpy (&delayed_context->dest, destination,
+ sizeof (struct GNUNET_PeerIdentity));
+ memcpy (&delayed_context->sender, original_sender,
+ sizeof (struct GNUNET_PeerIdentity));
+ delayed_context->message = GNUNET_malloc (packed_message_size);
+ memcpy (delayed_context->message, packed_message, packed_message_size);
+ delayed_context->message_size = packed_message_size;
+ delayed_context->uid = ntohl (incoming->uid);
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_MILLISECONDS, 2500),
+ &send_message_delayed, delayed_context);
+ return GNUNET_OK;
+ }
+ else
+#endif
+ {
+ ret =
+ send_message (destination, original_sender, NULL, packed_message,
+ packed_message_size, default_dv_priority,
+ ntohl (incoming->uid),
+ GNUNET_TIME_relative_get_forever ());
+ }
if (ret != GNUNET_SYSERR)
return GNUNET_OK;
else
+ {
+#if DEBUG_MESSAGE_DROP
+ char *direct_id = GNUNET_strdup (GNUNET_i2s (&dn->identity));
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: DROPPING MESSAGE type %d, forwarding failed! Message immediately from %s!\n",
+ GNUNET_i2s (&my_identity),
+ ntohs (((struct GNUNET_MessageHeader *) &incoming[1])->type),
+ direct_id);
+ GNUNET_free (direct_id);
+#endif
return GNUNET_SYSERR;
+ }
}
+#if DEBUG_DV
+/**
+ * Iterator over hash map entries.
+ *
+ * @param cls closure (NULL)
+ * @param key current key code
+ * @param value value in the hash map (DistantNeighbor)
+ * @return GNUNET_YES if we should continue to
+ * iterate,
+ * GNUNET_NO if not.
+ */
+int
+print_neighbors (void *cls, const GNUNET_HashCode * key, void *abs_value)
+{
+ struct DistantNeighbor *distant_neighbor = abs_value;
+ char my_shortname[5];
+ char referrer_shortname[5];
+
+ memcpy (&my_shortname, GNUNET_i2s (&my_identity), 4);
+ my_shortname[4] = '\0';
+ memcpy (&referrer_shortname,
+ GNUNET_i2s (&distant_neighbor->referrer->identity), 4);
+ referrer_shortname[4] = '\0';
+
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "`%s' %s: Peer `%s', distance %d, referrer `%s' pkey: %s\n",
+ &my_shortname, "DV", GNUNET_i2s (&distant_neighbor->identity),
+ distant_neighbor->cost, &referrer_shortname,
+ distant_neighbor->pkey == NULL ? "no" : "yes");
+ return GNUNET_YES;
+}
+#endif
/**
- * Thread which chooses a peer to gossip about and a peer to gossip
- * to, then constructs the message and sends it out. Will run until
- * done_module_dv is called.
+ * Scheduled task which gossips about known direct peers to other connected
+ * peers. Will run until called with reason shutdown.
*/
static void
-neighbor_send_task (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
+neighbor_send_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct NeighborSendContext *send_context = cls;
-#if DEBUG_DV_GOSSIP
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "%s: Entering neighbor_send_task...\n",
- GNUNET_i2s(&my_identity));
- char * encPeerAbout;
- char * encPeerTo;
+
+#if DEBUG_DV_GOSSIP_SEND
+ char *encPeerAbout;
+ char *encPeerTo;
#endif
struct DistantNeighbor *about;
struct DirectNeighbor *to;
+ struct FastGossipNeighborList *about_list;
p2p_dv_MESSAGE_NeighborInfo *message;
struct PendingMessage *pending_message;
- if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
+ if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
{
#if DEBUG_DV_GOSSIP
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "%s: Called with reason shutdown, shutting down!\n",
- GNUNET_i2s(&my_identity));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: Called with reason shutdown, shutting down!\n",
+ GNUNET_i2s (&my_identity));
#endif
- send_context->toNeighbor->send_context = NULL;
- GNUNET_free(send_context);
return;
}
-
- /* FIXME: this may become a problem, because the heap walk has only one internal "walker". This means
- * that if two neighbor_send_tasks are operating in lockstep (which is quite possible, given default
- * values for all connected peers) there may be a serious bias as to which peers get gossiped about!
- * Probably the *best* way to fix would be to have an opaque pointer to the walk position passed as
- * part of the walk_get_next call. Then the heap would have to keep a list of walks, or reset the walk
- * whenever a modification has been detected. Yuck either way. Perhaps we could iterate over the heap
- * once to get a list of peers to gossip about and gossip them over time... But then if one goes away
- * in the mean time that becomes nasty. For now we'll just assume that the walking is done
- * asynchronously enough to avoid major problems (-;
- */
- about = GNUNET_CONTAINER_heap_walk_get_next (ctx.neighbor_min_heap);
+ if (send_context->fast_gossip_list_head != NULL)
+ {
+ about_list = send_context->fast_gossip_list_head;
+ about = about_list->about;
+ GNUNET_CONTAINER_DLL_remove (send_context->fast_gossip_list_head,
+ send_context->fast_gossip_list_tail,
+ about_list);
+ GNUNET_free (about_list);
+ }
+ else
+ {
+ /* FIXME: this may become a problem, because the heap walk has only one internal "walker". This means
+ * that if two neighbor_send_tasks are operating in lockstep (which is quite possible, given default
+ * values for all connected peers) there may be a serious bias as to which peers get gossiped about!
+ * Probably the *best* way to fix would be to have an opaque pointer to the walk position passed as
+ * part of the walk_get_next call. Then the heap would have to keep a list of walks, or reset the walk
+ * whenever a modification has been detected. Yuck either way. Perhaps we could iterate over the heap
+ * once to get a list of peers to gossip about and gossip them over time... But then if one goes away
+ * in the mean time that becomes nasty. For now we'll just assume that the walking is done
+ * asynchronously enough to avoid major problems (-;
+ *
+ * NOTE: probably fixed once we decided send rate based on allowed bandwidth.
+ */
+ about = GNUNET_CONTAINER_heap_walk_get_next (neighbor_min_heap);
+ }
to = send_context->toNeighbor;
if ((about != NULL) && (to != about->referrer /* split horizon */ ) &&
(about->hidden == GNUNET_NO) &&
#endif
(to != NULL) &&
- (0 != memcmp (&about->identity,
- &to->identity, sizeof (struct GNUNET_PeerIdentity))) &&
- (about->pkey != NULL))
- {
-#if DEBUG_DV_GOSSIP
- encPeerAbout = GNUNET_strdup(GNUNET_i2s(&about->identity));
- encPeerTo = GNUNET_strdup(GNUNET_i2s(&to->identity));
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "%s: Sending info about peer %s to directly connected peer %s\n",
- GNUNET_i2s(&my_identity),
- encPeerAbout, encPeerTo);
- GNUNET_free(encPeerAbout);
- GNUNET_free(encPeerTo);
-#endif
- pending_message = GNUNET_malloc(sizeof(struct PendingMessage) + sizeof(p2p_dv_MESSAGE_NeighborInfo));
- pending_message->msg = (struct GNUNET_MessageHeader *)&pending_message[1];
- message = (p2p_dv_MESSAGE_NeighborInfo *)pending_message->msg;
- message->header.size = htons (sizeof (p2p_dv_MESSAGE_NeighborInfo));
- message->header.type = htons (GNUNET_MESSAGE_TYPE_DV_GOSSIP);
- message->cost = htonl (about->cost);
- message->neighbor_id = htonl (about->our_id);
-
- memcpy (&message->pkey, about->pkey, sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
- memcpy (&message->neighbor,
- &about->identity, sizeof (struct GNUNET_PeerIdentity));
-
- GNUNET_CONTAINER_DLL_insert_after (core_pending_head,
- core_pending_tail,
- core_pending_tail,
- pending_message);
-
- if (core_transmit_handle == NULL)
- core_transmit_handle = GNUNET_CORE_notify_transmit_ready(coreAPI, default_dv_priority, default_dv_delay, &to->identity, sizeof(p2p_dv_MESSAGE_NeighborInfo), &core_transmit_notify, NULL);
+ (0 !=
+ memcmp (&about->identity, &to->identity,
+ sizeof (struct GNUNET_PeerIdentity))) && (about->pkey != NULL))
+ {
+#if DEBUG_DV_GOSSIP_SEND
+ encPeerAbout = GNUNET_strdup (GNUNET_i2s (&about->identity));
+ encPeerTo = GNUNET_strdup (GNUNET_i2s (&to->identity));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: Sending info about peer %s id %u to directly connected peer %s\n",
+ GNUNET_i2s (&my_identity), encPeerAbout, about->our_id,
+ encPeerTo);
+ GNUNET_free (encPeerAbout);
+ GNUNET_free (encPeerTo);
+#endif
+ about->last_gossip = GNUNET_TIME_absolute_get ();
+ pending_message =
+ GNUNET_malloc (sizeof (struct PendingMessage) +
+ sizeof (p2p_dv_MESSAGE_NeighborInfo));
+ pending_message->msg = (struct GNUNET_MessageHeader *) &pending_message[1];
+ pending_message->importance = default_dv_priority;
+ pending_message->timeout = GNUNET_TIME_relative_get_forever ();
+ memcpy (&pending_message->recipient, &to->identity,
+ sizeof (struct GNUNET_PeerIdentity));
+ pending_message->msg_size = sizeof (p2p_dv_MESSAGE_NeighborInfo);
+ message = (p2p_dv_MESSAGE_NeighborInfo *) pending_message->msg;
+ message->header.size = htons (sizeof (p2p_dv_MESSAGE_NeighborInfo));
+ message->header.type = htons (GNUNET_MESSAGE_TYPE_DV_GOSSIP);
+ message->cost = htonl (about->cost);
+ message->neighbor_id = htonl (about->our_id);
+
+ memcpy (&message->pkey, about->pkey,
+ sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
+ memcpy (&message->neighbor, &about->identity,
+ sizeof (struct GNUNET_PeerIdentity));
+
+ GNUNET_CONTAINER_DLL_insert_after (core_pending_head, core_pending_tail,
+ core_pending_tail, pending_message);
+
+ GNUNET_SCHEDULER_add_now (try_core_send, NULL);
+ /*if (core_transmit_handle == NULL)
+ * core_transmit_handle = GNUNET_CORE_notify_transmit_ready(coreAPI, GNUNET_YES, default_dv_priority, GNUNET_TIME_relative_get_forever(), &to->identity, sizeof(p2p_dv_MESSAGE_NeighborInfo), &core_transmit_notify, NULL); */
- }
+ }
+
+ if (send_context->fast_gossip_list_head != NULL) /* If there are other peers in the fast list, schedule right away */
+ {
+#if DEBUG_DV_PEER_NUMBERS
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "DV SERVICE: still in fast send mode\n");
+#endif
+ send_context->task =
+ GNUNET_SCHEDULER_add_now (&neighbor_send_task, send_context);
+ }
+ else
+ {
+#if DEBUG_DV_PEER_NUMBERS
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "DV SERVICE: entering slow send mode\n");
+#endif
+ send_context->task =
+ GNUNET_SCHEDULER_add_delayed (GNUNET_DV_DEFAULT_SEND_INTERVAL,
+ &neighbor_send_task, send_context);
+ }
- send_context->task = GNUNET_SCHEDULER_add_delayed(sched, send_context->timeout, &neighbor_send_task, send_context);
return;
}
* @param message the actual message
*/
static void
-handle_start (void *cls,
- struct GNUNET_SERVER_Client *client,
+handle_start (void *cls, struct GNUNET_SERVER_Client *client,
const struct GNUNET_MessageHeader *message)
{
#if DEBUG_DV
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received `%s' request from client\n", "START");
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received `%s' request from client\n",
+ "START");
#endif
client_handle = client;
- GNUNET_SERVER_client_keep(client_handle);
+ GNUNET_SERVER_client_keep (client_handle);
GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
-
+#if UNSIMPLER
/**
* Iterate over hash map entries for a distant neighbor,
* if direct neighbor matches context call send message
* iterate,
* GNUNET_NO if not.
*/
-int send_iterator (void *cls,
- const GNUNET_HashCode * key,
- void *value)
+int
+send_iterator (void *cls, const GNUNET_HashCode * key, void *abs_value)
{
struct DV_SendContext *send_context = cls;
- struct DistantNeighbor *distant_neighbor = value;
+ struct DistantNeighbor *distant_neighbor = abs_value;
- if (memcmp(distant_neighbor->referrer, send_context->direct_peer, sizeof(struct GNUNET_PeerIdentity)) == 0) /* They match, send and free */
- {
- send_message_via(&my_identity, distant_neighbor, send_context);
- return GNUNET_NO;
- }
+ if (memcmp (distant_neighbor->referrer, send_context->direct_peer, sizeof (struct GNUNET_PeerIdentity)) == 0) /* They match, send and free */
+ {
+ send_message_via (&my_identity, distant_neighbor, send_context);
+ return GNUNET_NO;
+ }
return GNUNET_YES;
}
+#endif
/**
* Service server's handler for message send requests (which come
* @param client identification of the client
* @param message the actual message
*/
-void handle_dv_send_message (void *cls,
- struct GNUNET_SERVER_Client * client,
- const struct GNUNET_MessageHeader * message)
+void
+handle_dv_send_message (void *cls, struct GNUNET_SERVER_Client *client,
+ const struct GNUNET_MessageHeader *message)
{
struct GNUNET_DV_SendMessage *send_msg;
+ struct GNUNET_DV_SendResultMessage *send_result_msg;
+ struct PendingMessage *pending_message;
size_t address_len;
size_t message_size;
struct GNUNET_PeerIdentity *destination;
static struct GNUNET_CRYPTO_HashAsciiEncoded dest_hash;
struct DV_SendContext *send_context;
+#if DEBUG_DV_MESSAGES
+ char *cbuf;
+ struct GNUNET_MessageHeader *packed_message;
+#endif
+
if (client_handle == NULL)
{
client_handle = client;
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "%s: Setting initial client handle, never received `%s' message?\n", "dv", "START");
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: Setting initial client handle, never received `%s' message?\n",
+ "dv", "START");
}
else if (client_handle != client)
{
client_handle = client;
/* What should we do in this case, assert fail or just log the warning? */
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+#if DEBUG_DV
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"%s: Setting client handle (was a different client!)!\n", "dv");
+#endif
}
- GNUNET_assert(ntohs(message->size) > sizeof(struct GNUNET_DV_SendMessage));
- send_msg = (struct GNUNET_DV_SendMessage *)message;
+ GNUNET_assert (ntohs (message->size) > sizeof (struct GNUNET_DV_SendMessage));
+ send_msg = (struct GNUNET_DV_SendMessage *) message;
- address_len = ntohs(send_msg->addrlen);
- GNUNET_assert(address_len == sizeof(struct GNUNET_PeerIdentity) * 2);
- message_size = ntohs(send_msg->msgbuf_size);
-
-#if DEBUG_DV
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "%s: Receives %s message size %u!\n\n\n", "dv", "SEND", message_size);
-#endif
- GNUNET_assert(ntohs(message->size) == sizeof(struct GNUNET_DV_SendMessage) + address_len + message_size);
- destination = GNUNET_malloc(sizeof(struct GNUNET_PeerIdentity));
- direct = GNUNET_malloc(sizeof(struct GNUNET_PeerIdentity));
- message_buf = GNUNET_malloc(message_size);
+ address_len = ntohl (send_msg->addrlen);
+ GNUNET_assert (address_len == sizeof (struct GNUNET_PeerIdentity) * 2);
+ message_size =
+ ntohs (message->size) - sizeof (struct GNUNET_DV_SendMessage) -
+ address_len;
+ destination = GNUNET_malloc (sizeof (struct GNUNET_PeerIdentity));
+ direct = GNUNET_malloc (sizeof (struct GNUNET_PeerIdentity));
+ message_buf = GNUNET_malloc (message_size);
- temp_pos = (char *)&send_msg[1]; /* Set pointer to end of message */
- offset = 0; /* Offset starts at zero */
+ temp_pos = (char *) &send_msg[1]; /* Set pointer to end of message */
+ offset = 0; /* Offset starts at zero */
- memcpy(destination, &temp_pos[offset], sizeof(struct GNUNET_PeerIdentity));
- offset += sizeof(struct GNUNET_PeerIdentity);
+ memcpy (destination, &temp_pos[offset], sizeof (struct GNUNET_PeerIdentity));
+ offset += sizeof (struct GNUNET_PeerIdentity);
- memcpy(direct, &temp_pos[offset], sizeof(struct GNUNET_PeerIdentity));
- offset += sizeof(struct GNUNET_PeerIdentity);
+ memcpy (direct, &temp_pos[offset], sizeof (struct GNUNET_PeerIdentity));
+ offset += sizeof (struct GNUNET_PeerIdentity);
- memcpy(message_buf, &temp_pos[offset], message_size);
- if (memcmp(&send_msg->target, destination, sizeof(struct GNUNET_PeerIdentity)) != 0)
- {
- GNUNET_CRYPTO_hash_to_enc (&destination->hashPubKey, &dest_hash); /* GNUNET_i2s won't properly work, need to hash one ourselves */
- dest_hash.encoding[4] = '\0';
- GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "%s: asked to send message to `%s', but address is for `%s'!", "DV SERVICE", GNUNET_i2s(&send_msg->target), (const char *)&dest_hash.encoding);
- }
+ memcpy (message_buf, &temp_pos[offset], message_size);
+ if (memcmp
+ (&send_msg->target, destination,
+ sizeof (struct GNUNET_PeerIdentity)) != 0)
+ {
+ GNUNET_CRYPTO_hash_to_enc (&destination->hashPubKey, &dest_hash); /* GNUNET_i2s won't properly work, need to hash one ourselves */
+ dest_hash.encoding[4] = '\0';
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "%s: asked to send message to `%s', but address is for `%s'!",
+ "DV SERVICE", GNUNET_i2s (&send_msg->target),
+ (const char *) &dest_hash.encoding);
+ }
-#if DEBUG_DV
- GNUNET_CRYPTO_hash_to_enc (&destination->hashPubKey, &dest_hash); /* GNUNET_i2s won't properly work, need to hash one ourselves */
- dest_hash.encoding[4] = '\0';
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "DV SEND called with message of size %d type %d, destination `%s' via `%s'\n", message_size, ntohs(message_buf->type), (const char *)&dest_hash.encoding, GNUNET_i2s(direct));
+#if DEBUG_DV_MESSAGES
+ cbuf = (char *) message_buf;
+ offset = 0;
+ while (offset < message_size)
+ {
+ packed_message = (struct GNUNET_MessageHeader *) &cbuf[offset];
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: DV PLUGIN SEND uid %u type %d to %s\n", my_short_id,
+ ntohl (send_msg->uid), ntohs (packed_message->type),
+ GNUNET_i2s (destination));
+ offset += ntohs (packed_message->size);
+ }
+ /*GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "%s: DV PLUGIN SEND uid %u type %d to %s\n", my_short_id, ntohl(send_msg->uid), ntohs(message_buf->type), GNUNET_i2s(destination)); */
#endif
- send_context = GNUNET_malloc(sizeof(struct DV_SendContext));
+ GNUNET_CRYPTO_hash_to_enc (&destination->hashPubKey, &dest_hash); /* GNUNET_i2s won't properly work, need to hash one ourselves */
+ dest_hash.encoding[4] = '\0';
+ send_context = GNUNET_malloc (sizeof (struct DV_SendContext));
- send_context->importance = ntohs(send_msg->priority);
+ send_result_msg = GNUNET_malloc (sizeof (struct GNUNET_DV_SendResultMessage));
+ send_result_msg->header.size =
+ htons (sizeof (struct GNUNET_DV_SendResultMessage));
+ send_result_msg->header.type =
+ htons (GNUNET_MESSAGE_TYPE_TRANSPORT_DV_SEND_RESULT);
+ send_result_msg->uid = send_msg->uid; /* No need to ntohl->htonl this */
+
+ send_context->importance = ntohl (send_msg->priority);
send_context->timeout = send_msg->timeout;
send_context->direct_peer = direct;
send_context->distant_peer = destination;
send_context->message = message_buf;
send_context->message_size = message_size;
+ send_context->send_result = send_result_msg;
+#if DEBUG_DV_MESSAGES
+ send_context->uid = send_msg->uid;
+#endif
- /* In bizarro world GNUNET_SYSERR indicates that we succeeded */
- if (GNUNET_SYSERR != GNUNET_CONTAINER_multihashmap_get_multiple(ctx.extended_neighbors, &destination->hashPubKey, &send_iterator, send_context))
+ if (send_message_via (&my_identity, direct, send_context) != GNUNET_YES)
+ {
+ send_result_msg->result = htons (1);
+ pending_message =
+ GNUNET_malloc (sizeof (struct PendingMessage) +
+ sizeof (struct GNUNET_DV_SendResultMessage));
+ pending_message->msg = (struct GNUNET_MessageHeader *) &pending_message[1];
+ memcpy (&pending_message[1], send_result_msg,
+ sizeof (struct GNUNET_DV_SendResultMessage));
+ GNUNET_free (send_result_msg);
+
+ GNUNET_CONTAINER_DLL_insert_after (plugin_pending_head, plugin_pending_tail,
+ plugin_pending_tail, pending_message);
+
+ if (client_handle != NULL)
{
- GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "DV SEND failed to send message to destination `%s' via `%s'\n", (const char *)&dest_hash.encoding, GNUNET_i2s(direct));
+ if (plugin_transmit_handle == NULL)
+ {
+ plugin_transmit_handle =
+ GNUNET_SERVER_notify_transmit_ready (client_handle,
+ sizeof (struct
+ GNUNET_DV_SendResultMessage),
+ GNUNET_TIME_UNIT_FOREVER_REL,
+ &transmit_to_plugin, NULL);
+ }
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Failed to queue message for plugin, must be one in progress already!!\n");
+ }
}
+ GNUNET_CRYPTO_hash_to_enc (&destination->hashPubKey, &dest_hash); /* GNUNET_i2s won't properly work, need to hash one ourselves */
+ dest_hash.encoding[4] = '\0';
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "%s DV SEND failed to send message to destination `%s' via `%s'\n",
+ my_short_id, (const char *) &dest_hash.encoding,
+ GNUNET_i2s (direct));
+ }
- GNUNET_free(message_buf);
- GNUNET_free(send_context);
- GNUNET_free(direct);
- GNUNET_free(destination);
+ /* In bizarro world GNUNET_SYSERR indicates that we succeeded */
+#if UNSIMPLER
+ if (GNUNET_SYSERR !=
+ GNUNET_CONTAINER_multihashmap_get_multiple (extended_neighbors,
+ &destination->hashPubKey,
+ &send_iterator, send_context))
+ {
+ send_result_msg->result = htons (1);
+ pending_message =
+ GNUNET_malloc (sizeof (struct PendingMessage) +
+ sizeof (struct GNUNET_DV_SendResultMessage));
+ pending_message->msg = (struct GNUNET_MessageHeader *) &pending_message[1];
+ memcpy (&pending_message[1], send_result_msg,
+ sizeof (struct GNUNET_DV_SendResultMessage));
+ GNUNET_free (send_result_msg);
+
+ GNUNET_CONTAINER_DLL_insert_after (plugin_pending_head, plugin_pending_tail,
+ plugin_pending_tail, pending_message);
+
+ if (client_handle != NULL)
+ {
+ if (plugin_transmit_handle == NULL)
+ {
+ plugin_transmit_handle =
+ GNUNET_SERVER_notify_transmit_ready (client_handle,
+ sizeof (struct
+ GNUNET_DV_SendResultMessage),
+ GNUNET_TIME_UNIT_FOREVER_REL,
+ &transmit_to_plugin, NULL);
+ }
+ else
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Failed to queue message for plugin, must be one in progress already!!\n");
+ }
+ }
+ GNUNET_CRYPTO_hash_to_enc (&destination->hashPubKey, &dest_hash); /* GNUNET_i2s won't properly work, need to hash one ourselves */
+ dest_hash.encoding[4] = '\0';
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "%s DV SEND failed to send message to destination `%s' via `%s'\n",
+ my_short_id, (const char *) &dest_hash.encoding,
+ GNUNET_i2s (direct));
+ }
+#endif
+ GNUNET_free (message_buf);
+ GNUNET_free (send_context);
+ GNUNET_free (direct);
+ GNUNET_free (destination);
- GNUNET_SERVER_receive_done(client, GNUNET_OK);
+ GNUNET_SERVER_receive_done (client, GNUNET_OK);
}
-static int handle_dv_gossip_message (void *cls,
- const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_MessageHeader *message,
- struct GNUNET_TIME_Relative latency,
- uint32_t distance);
+/** Forward declarations **/
+static int
+handle_dv_gossip_message (void *cls, const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_MessageHeader *message,
+ const struct GNUNET_ATS_Information *atsi,
+ unsigned int atsi_count);
+
+static int
+handle_dv_disconnect_message (void *cls, const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_MessageHeader *message,
+ const struct GNUNET_ATS_Information *atsi,
+ unsigned int atsi_count);
+/** End forward declarations **/
+
/**
* List of handlers for the messages understood by this
static struct GNUNET_CORE_MessageHandler core_handlers[] = {
{&handle_dv_data_message, GNUNET_MESSAGE_TYPE_DV_DATA, 0},
{&handle_dv_gossip_message, GNUNET_MESSAGE_TYPE_DV_GOSSIP, 0},
+ {&handle_dv_disconnect_message, GNUNET_MESSAGE_TYPE_DV_DISCONNECT, 0},
{NULL, 0, 0}
};
{NULL, NULL, 0, 0}
};
+/**
+ * Free a DistantNeighbor node, including removing it
+ * from the referer's list.
+ */
+static void
+distant_neighbor_free (struct DistantNeighbor *referee)
+{
+ struct DirectNeighbor *referrer;
+
+ referrer = referee->referrer;
+ if (referrer != NULL)
+ {
+ GNUNET_CONTAINER_DLL_remove (referrer->referee_head, referrer->referee_tail,
+ referee);
+ }
+ GNUNET_CONTAINER_heap_remove_node (referee->max_loc);
+ GNUNET_CONTAINER_heap_remove_node (referee->min_loc);
+ GNUNET_CONTAINER_multihashmap_remove_all (extended_neighbors,
+ &referee->identity.hashPubKey);
+ GNUNET_free_non_null (referee->pkey);
+ GNUNET_free (referee);
+}
+
+/**
+ * Free a DirectNeighbor node, including removing it
+ * from the referer's list.
+ */
+static void
+direct_neighbor_free (struct DirectNeighbor *direct)
+{
+ struct NeighborSendContext *send_context;
+ struct FastGossipNeighborList *about_list;
+ struct FastGossipNeighborList *prev_about;
+
+ send_context = direct->send_context;
+
+ if (send_context->task != GNUNET_SCHEDULER_NO_TASK)
+ GNUNET_SCHEDULER_cancel (send_context->task);
+
+ about_list = send_context->fast_gossip_list_head;
+ while (about_list != NULL)
+ {
+ GNUNET_CONTAINER_DLL_remove (send_context->fast_gossip_list_head,
+ send_context->fast_gossip_list_tail,
+ about_list);
+ prev_about = about_list;
+ about_list = about_list->next;
+ GNUNET_free (prev_about);
+ }
+ GNUNET_free (send_context);
+ GNUNET_free (direct);
+}
+
+/**
+ * Multihashmap iterator for sending out disconnect messages
+ * for a peer.
+ *
+ * @param cls the peer that was disconnected
+ * @param key key value stored under
+ * @param value the direct neighbor to send disconnect to
+ *
+ * @return GNUNET_YES to continue iteration, GNUNET_NO to stop
+ */
+static int
+schedule_disconnect_messages (void *cls, const GNUNET_HashCode * key,
+ void *value)
+{
+ struct DisconnectContext *disconnect_context = cls;
+ struct DirectNeighbor *disconnected = disconnect_context->direct;
+ struct DirectNeighbor *notify = value;
+ struct PendingMessage *pending_message;
+ p2p_dv_MESSAGE_Disconnect *disconnect_message;
+
+ if (memcmp
+ (¬ify->identity, &disconnected->identity,
+ sizeof (struct GNUNET_PeerIdentity)) == 0)
+ return GNUNET_YES; /* Don't send disconnect message to peer that disconnected! */
+
+ pending_message =
+ GNUNET_malloc (sizeof (struct PendingMessage) +
+ sizeof (p2p_dv_MESSAGE_Disconnect));
+ pending_message->msg = (struct GNUNET_MessageHeader *) &pending_message[1];
+ pending_message->importance = default_dv_priority;
+ pending_message->timeout = GNUNET_TIME_relative_get_forever ();
+ memcpy (&pending_message->recipient, ¬ify->identity,
+ sizeof (struct GNUNET_PeerIdentity));
+ pending_message->msg_size = sizeof (p2p_dv_MESSAGE_Disconnect);
+ disconnect_message = (p2p_dv_MESSAGE_Disconnect *) pending_message->msg;
+ disconnect_message->header.size = htons (sizeof (p2p_dv_MESSAGE_Disconnect));
+ disconnect_message->header.type = htons (GNUNET_MESSAGE_TYPE_DV_DISCONNECT);
+ disconnect_message->peer_id = htonl (disconnect_context->distant->our_id);
+
+ GNUNET_CONTAINER_DLL_insert_after (core_pending_head, core_pending_tail,
+ core_pending_tail, pending_message);
+
+ GNUNET_SCHEDULER_add_now (try_core_send, NULL);
+ /*if (core_transmit_handle == NULL)
+ * core_transmit_handle = GNUNET_CORE_notify_transmit_ready(coreAPI, GNUNET_YES, default_dv_priority, GNUNET_TIME_relative_get_forever(), ¬ify->identity, sizeof(p2p_dv_MESSAGE_Disconnect), &core_transmit_notify, NULL); */
+
+ return GNUNET_YES;
+}
+
+/**
+ * Multihashmap iterator for freeing extended neighbors.
+ *
+ * @param cls NULL
+ * @param key key value stored under
+ * @param value the distant neighbor to be freed
+ *
+ * @return GNUNET_YES to continue iteration, GNUNET_NO to stop
+ */
+static int
+free_extended_neighbors (void *cls, const GNUNET_HashCode * key, void *value)
+{
+ struct DistantNeighbor *distant = value;
+
+ distant_neighbor_free (distant);
+ return GNUNET_YES;
+}
+
+/**
+ * Multihashmap iterator for freeing direct neighbors.
+ *
+ * @param cls NULL
+ * @param key key value stored under
+ * @param value the direct neighbor to be freed
+ *
+ * @return GNUNET_YES to continue iteration, GNUNET_NO to stop
+ */
+static int
+free_direct_neighbors (void *cls, const GNUNET_HashCode * key, void *value)
+{
+ struct DirectNeighbor *direct = value;
+
+ direct_neighbor_free (direct);
+ return GNUNET_YES;
+}
+
/**
* Task run during shutdown.
* @param tc unused
*/
static void
-shutdown_task (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
+shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
#if DEBUG_DV
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "calling CORE_DISCONNECT\n");
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "calling CORE_DISCONNECT\n");
+ GNUNET_CONTAINER_multihashmap_iterate (extended_neighbors, &print_neighbors,
+ NULL);
#endif
+ GNUNET_CONTAINER_multihashmap_iterate (extended_neighbors,
+ &free_extended_neighbors, NULL);
+ GNUNET_CONTAINER_multihashmap_destroy (extended_neighbors);
+ GNUNET_CONTAINER_multihashmap_iterate (direct_neighbors,
+ &free_direct_neighbors, NULL);
+ GNUNET_CONTAINER_multihashmap_destroy (direct_neighbors);
+
+ GNUNET_CONTAINER_heap_destroy (neighbor_max_heap);
+ GNUNET_CONTAINER_heap_destroy (neighbor_min_heap);
+
GNUNET_CORE_disconnect (coreAPI);
+ coreAPI = NULL;
+ GNUNET_PEERINFO_disconnect (peerinfo_handle);
+ GNUNET_SERVER_mst_destroy (coreMST);
+ GNUNET_free_non_null (my_short_id);
#if DEBUG_DV
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "CORE_DISCONNECT completed\n");
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "CORE_DISCONNECT completed\n");
#endif
}
/**
* To be called on core init/fail.
*/
-void core_init (void *cls,
- struct GNUNET_CORE_Handle * server,
- const struct GNUNET_PeerIdentity *identity,
- const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded * publicKey)
+void
+core_init (void *cls, struct GNUNET_CORE_Handle *server,
+ const struct GNUNET_PeerIdentity *identity)
{
if (server == NULL)
- {
- GNUNET_SCHEDULER_cancel(sched, cleanup_task);
- GNUNET_SCHEDULER_add_now(sched, &shutdown_task, NULL);
- return;
- }
+ {
+ GNUNET_SCHEDULER_cancel (cleanup_task);
+ GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
+ return;
+ }
#if DEBUG_DV
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "%s: Core connection initialized, I am peer: %s\n", "dv", GNUNET_i2s(identity));
+ "%s: Core connection initialized, I am peer: %s\n", "dv",
+ GNUNET_i2s (identity));
#endif
- memcpy(&my_identity, identity, sizeof(struct GNUNET_PeerIdentity));
+ memcpy (&my_identity, identity, sizeof (struct GNUNET_PeerIdentity));
+ my_short_id = GNUNET_strdup (GNUNET_i2s (&my_identity));
coreAPI = server;
}
+
+#if PKEY_NO_NEIGHBOR_ON_ADD
/**
* Iterator over hash map entries.
*
* iterate,
* GNUNET_NO if not.
*/
-static int add_pkey_to_extended (void *cls,
- const GNUNET_HashCode * key,
- void *value)
+static int
+add_pkey_to_extended (void *cls, const GNUNET_HashCode * key, void *abs_value)
{
struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *pkey = cls;
- struct DistantNeighbor *distant_neighbor = value;
+ struct DistantNeighbor *distant_neighbor = abs_value;
if (distant_neighbor->pkey == NULL)
{
- distant_neighbor->pkey = GNUNET_malloc(sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
- memcpy(distant_neighbor->pkey, pkey, sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
+ distant_neighbor->pkey =
+ GNUNET_malloc (sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
+ memcpy (distant_neighbor->pkey, pkey,
+ sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
}
return GNUNET_YES;
}
+#endif
/**
* Iterator over hash map entries.
* iterate,
* GNUNET_NO if not.
*/
-static int update_matching_neighbors (void *cls,
- const GNUNET_HashCode * key,
- void *value)
+static int
+update_matching_neighbors (void *cls, const GNUNET_HashCode * key, void *value)
{
- struct NeighborUpdateInfo * update_info = cls;
+ struct NeighborUpdateInfo *update_info = cls;
struct DistantNeighbor *distant_neighbor = value;
- if (update_info->referrer == distant_neighbor->referrer) /* Direct neighbor matches, update it's info and return GNUNET_NO */
+ if (update_info->referrer == distant_neighbor->referrer) /* Direct neighbor matches, update it's info and return GNUNET_NO */
{
/* same referrer, cost change! */
- GNUNET_CONTAINER_heap_update_cost (ctx.neighbor_max_heap,
- update_info->neighbor->max_loc, update_info->cost);
- GNUNET_CONTAINER_heap_update_cost (ctx.neighbor_min_heap,
- update_info->neighbor->min_loc, update_info->cost);
+ GNUNET_CONTAINER_heap_update_cost (neighbor_max_heap,
+ update_info->neighbor->max_loc,
+ update_info->cost);
+ GNUNET_CONTAINER_heap_update_cost (neighbor_min_heap,
+ update_info->neighbor->min_loc,
+ update_info->cost);
update_info->neighbor->last_activity = update_info->now;
update_info->neighbor->cost = update_info->cost;
+ update_info->neighbor->referrer_id = update_info->referrer_peer_id;
return GNUNET_NO;
}
/**
- * Free a DistantNeighbor node, including removing it
- * from the referer's list.
+ * Iterate over all current direct peers, add DISTANT newly connected
+ * peer to the fast gossip list for that peer so we get DV routing
+ * information out as fast as possible!
+ *
+ * @param cls the newly connected neighbor we will gossip about
+ * @param key the hashcode of the peer
+ * @param value the direct neighbor we should gossip to
+ *
+ * @return GNUNET_YES to continue iteration, GNUNET_NO otherwise
*/
-static void
-distant_neighbor_free (struct DistantNeighbor *referee)
+static int
+add_distant_all_direct_neighbors (void *cls, const GNUNET_HashCode * key,
+ void *value)
{
- struct DirectNeighbor *referrer;
+ struct DirectNeighbor *direct = (struct DirectNeighbor *) value;
+ struct DistantNeighbor *distant = (struct DistantNeighbor *) cls;
+ struct NeighborSendContext *send_context = direct->send_context;
+ struct FastGossipNeighborList *gossip_entry;
- referrer = referee->referrer;
- if (referrer != NULL)
- {
- GNUNET_CONTAINER_DLL_remove (referrer->referee_head,
- referrer->referee_tail, referee);
- }
- GNUNET_CONTAINER_heap_remove_node (ctx.neighbor_max_heap, referee->max_loc);
- GNUNET_CONTAINER_heap_remove_node (ctx.neighbor_min_heap, referee->min_loc);
- GNUNET_CONTAINER_multihashmap_remove_all (ctx.extended_neighbors,
- &referee->identity.hashPubKey);
- GNUNET_free (referee);
-}
+#if DEBUG_DV
+ char *encPeerAbout;
+ char *encPeerTo;
+#endif
+ if (distant == NULL)
+ {
+ return GNUNET_YES;
+ }
+
+ if (memcmp
+ (&direct->identity, &distant->identity,
+ sizeof (struct GNUNET_PeerIdentity)) == 0)
+ {
+ return GNUNET_YES; /* Don't gossip to a peer about itself! */
+ }
+
+#if SUPPORT_HIDING
+ if (distant->hidden == GNUNET_YES)
+ return GNUNET_YES; /* This peer should not be gossipped about (hidden) */
+#endif
+ gossip_entry = GNUNET_malloc (sizeof (struct FastGossipNeighborList));
+ gossip_entry->about = distant;
+
+ GNUNET_CONTAINER_DLL_insert_after (send_context->fast_gossip_list_head,
+ send_context->fast_gossip_list_tail,
+ send_context->fast_gossip_list_tail,
+ gossip_entry);
+#if DEBUG_DV
+ encPeerAbout = GNUNET_strdup (GNUNET_i2s (&distant->identity));
+ encPeerTo = GNUNET_strdup (GNUNET_i2s (&direct->identity));
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: Fast send info about peer %s id %u for directly connected peer %s\n",
+ GNUNET_i2s (&my_identity), encPeerAbout, distant->our_id,
+ encPeerTo);
+ GNUNET_free (encPeerAbout);
+ GNUNET_free (encPeerTo);
+#endif
+ /*if (send_context->task != GNUNET_SCHEDULER_NO_TASK)
+ * GNUNET_SCHEDULER_cancel(send_context->task); */
+
+ send_context->task =
+ GNUNET_SCHEDULER_add_now (&neighbor_send_task, send_context);
+ return GNUNET_YES;
+}
-#if DEBUG_DV_GOSSIP
/**
- * Iterator over hash map entries.
+ * Callback for hello address creation.
*
- * @param cls closure (NULL)
- * @param key current key code
- * @param value value in the hash map (DistantNeighbor)
- * @return GNUNET_YES if we should continue to
- * iterate,
- * GNUNET_NO if not.
+ * @param cls closure, a struct HelloContext
+ * @param max maximum number of bytes that can be written to buf
+ * @param buf where to write the address information
+ *
+ * @return number of bytes written, 0 to signal the
+ * end of the iteration.
*/
-int print_neighbors (void *cls,
- const GNUNET_HashCode * key,
- void *value)
+static size_t
+generate_hello_address (void *cls, size_t max, void *buf)
{
- struct DistantNeighbor *distant_neighbor = value;
- char my_shortname[5];
- char referrer_shortname[5];
- memcpy(&my_shortname, GNUNET_i2s(&my_identity), 4);
- my_shortname[4] = '\0';
- memcpy(&referrer_shortname, GNUNET_i2s(&distant_neighbor->referrer->identity), 4);
- referrer_shortname[4] = '\0';
+ struct HelloContext *hello_context = cls;
+ struct GNUNET_HELLO_Address hello_address;
+ char *addr_buffer;
+ size_t offset;
+ size_t size;
+ size_t ret;
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "`%s' %s: Peer `%s', distance %d, referrer `%s'\n", &my_shortname, "DV", GNUNET_i2s(&distant_neighbor->identity), distant_neighbor->cost, &referrer_shortname);
- return GNUNET_YES;
+ if (hello_context->addresses_to_add == 0)
+ return 0;
+
+ /* Hello "address" will be concatenation of distant peer and direct peer identities */
+ size = 2 * sizeof (struct GNUNET_PeerIdentity);
+ GNUNET_assert (max >= size);
+
+ addr_buffer = GNUNET_malloc (size);
+ offset = 0;
+ /* Copy the distant peer identity to buffer */
+ memcpy (addr_buffer, &hello_context->distant_peer,
+ sizeof (struct GNUNET_PeerIdentity));
+ offset += sizeof (struct GNUNET_PeerIdentity);
+ /* Copy the direct peer identity to buffer */
+ memcpy (&addr_buffer[offset], hello_context->direct_peer,
+ sizeof (struct GNUNET_PeerIdentity));
+ memset (&hello_address.peer, 0, sizeof (struct GNUNET_PeerIdentity));
+ hello_address.address = addr_buffer;
+ hello_address.transport_name = "dv";
+ hello_address.address_length = size;
+ ret =
+ GNUNET_HELLO_add_address (&hello_address,
+ GNUNET_TIME_relative_to_absolute
+ (GNUNET_TIME_UNIT_HOURS), buf, max);
+
+ hello_context->addresses_to_add--;
+
+ GNUNET_free (addr_buffer);
+ return ret;
}
-#endif
/**
* Handles when a peer is either added due to being newly connected
* @param referrer_peer_id id to use when sending to 'peer'
* @param referrer if this is a gossiped peer, who did we hear it from?
* @param cost the cost of communicating with this peer via 'referrer'
+ *
+ * @return the added neighbor, the updated neighbor or NULL (neighbor
+ * not added)
*/
-static void
-addUpdateNeighbor (const struct GNUNET_PeerIdentity * peer, struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *pkey,
+static struct DistantNeighbor *
+addUpdateNeighbor (const struct GNUNET_PeerIdentity *peer,
+ struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *pkey,
unsigned int referrer_peer_id,
struct DirectNeighbor *referrer, unsigned int cost)
{
struct DistantNeighbor *max;
struct GNUNET_TIME_Absolute now;
struct NeighborUpdateInfo *neighbor_update;
+ struct HelloContext *hello_context;
+ struct GNUNET_HELLO_Message *hello_msg;
unsigned int our_id;
+ char *addr1;
+ char *addr2;
+ int i;
- now = GNUNET_TIME_absolute_get ();
- our_id = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, RAND_MAX - 1) + 1;
+#if DEBUG_DV_PEER_NUMBERS
+ char *encAbout;
- neighbor = GNUNET_CONTAINER_multihashmap_get (ctx.extended_neighbors,
- &peer->hashPubKey);
- neighbor_update = GNUNET_malloc(sizeof(struct NeighborUpdateInfo));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%s Received sender id (%u)!\n",
+ "DV SERVICE", referrer_peer_id);
+#endif
+
+ now = GNUNET_TIME_absolute_get ();
+ neighbor =
+ GNUNET_CONTAINER_multihashmap_get (extended_neighbors, &peer->hashPubKey);
+ neighbor_update = GNUNET_malloc (sizeof (struct NeighborUpdateInfo));
neighbor_update->neighbor = neighbor;
neighbor_update->cost = cost;
neighbor_update->now = now;
neighbor_update->referrer = referrer;
+ neighbor_update->referrer_peer_id = referrer_peer_id;
+
+ if (neighbor != NULL)
+ {
+#if USE_PEER_ID
+ memcpy (&our_id, &neighbor->identity, sizeof (unsigned int));
+#else
+ our_id = neighbor->our_id;
+#endif
+ }
+ else
+ {
+#if USE_PEER_ID
+ memcpy (&our_id, peer, sizeof (unsigned int));
+#else
+ our_id =
+ GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG,
+ RAND_MAX - 1) + 1;
+#endif
+ }
/* Either we do not know this peer, or we already do but via a different immediate peer */
if ((neighbor == NULL) ||
- (GNUNET_CONTAINER_multihashmap_get_multiple(ctx.extended_neighbors,
- &peer->hashPubKey,
- &update_matching_neighbors,
- neighbor_update) != GNUNET_SYSERR))
+ (GNUNET_CONTAINER_multihashmap_get_multiple
+ (extended_neighbors, &peer->hashPubKey, &update_matching_neighbors,
+ neighbor_update) != GNUNET_SYSERR))
+ {
+#if AT_MOST_ONE
+ if ((neighbor != NULL) && (cost < neighbor->cost)) /* New cost is less than old, remove old */
{
- /* new neighbor! */
- if (cost > ctx.fisheye_depth)
- {
- /* too costly */
- GNUNET_free(neighbor_update);
- return;
- }
- if (ctx.max_table_size <=
- GNUNET_CONTAINER_multihashmap_size (ctx.extended_neighbors))
- {
- /* remove most expensive entry */
- max = GNUNET_CONTAINER_heap_peek (ctx.neighbor_max_heap);
- if (cost > max->cost)
- {
- /* new entry most expensive, don't create */
- GNUNET_free(neighbor_update);
- return;
- }
- if (max->cost > 0)
- {
- /* only free if this is not a direct connection;
- we could theoretically have more direct
- connections than DV entries allowed total! */
- distant_neighbor_free (max);
- }
- }
+ distant_neighbor_free (neighbor);
+ }
+ else if (neighbor != NULL) /* Only allow one DV connection to each peer */
+ {
+ return NULL;
+ }
+#endif
+ /* new neighbor! */
+ if (cost > fisheye_depth)
+ {
+ /* too costly */
+ GNUNET_free (neighbor_update);
+ return NULL;
+ }
- neighbor = GNUNET_malloc (sizeof (struct DistantNeighbor));
- GNUNET_CONTAINER_DLL_insert (referrer->referee_head,
- referrer->referee_tail, neighbor);
- neighbor->max_loc = GNUNET_CONTAINER_heap_insert (ctx.neighbor_max_heap,
- neighbor, cost);
- neighbor->min_loc = GNUNET_CONTAINER_heap_insert (ctx.neighbor_min_heap,
- neighbor, cost);
- neighbor->referrer = referrer;
- memcpy (&neighbor->identity, peer, sizeof (struct GNUNET_PeerIdentity));
- if (pkey != NULL) /* pkey will be null on direct neighbor addition */
+#if DEBUG_DV_PEER_NUMBERS
+ encAbout = GNUNET_strdup (GNUNET_i2s (peer));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: %s Chose NEW id (%u) for peer %s!\n",
+ GNUNET_i2s (&my_identity), "DV SERVICE", our_id, encAbout);
+ GNUNET_free (encAbout);
+#endif
+
+ if (max_table_size <=
+ GNUNET_CONTAINER_multihashmap_size (extended_neighbors))
+ {
+ /* remove most expensive entry */
+ max = GNUNET_CONTAINER_heap_peek (neighbor_max_heap);
+ GNUNET_assert (max != NULL);
+ if (cost > max->cost)
{
- neighbor->pkey = GNUNET_malloc(sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
- memcpy (neighbor->pkey, pkey, sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
+ /* new entry most expensive, don't create */
+ GNUNET_free (neighbor_update);
+ return NULL;
+ }
+ if (max->cost > 1)
+ {
+ /* only free if this is not a direct connection;
+ * we could theoretically have more direct
+ * connections than DV entries allowed total! */
+ distant_neighbor_free (max);
}
- else
- neighbor->pkey = pkey;
-
- neighbor->last_activity = now;
- neighbor->cost = cost;
- neighbor->referrer_id = referrer_peer_id;
- neighbor->our_id = our_id;
- neighbor->hidden =
- (cost == 0) ? (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 4) ==
- 0) : GNUNET_NO;
- GNUNET_CONTAINER_multihashmap_put (ctx.extended_neighbors, &peer->hashPubKey,
- neighbor,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
}
- else
+
+ neighbor = GNUNET_malloc (sizeof (struct DistantNeighbor));
+ GNUNET_CONTAINER_DLL_insert (referrer->referee_head, referrer->referee_tail,
+ neighbor);
+ neighbor->max_loc =
+ GNUNET_CONTAINER_heap_insert (neighbor_max_heap, neighbor, cost);
+ neighbor->min_loc =
+ GNUNET_CONTAINER_heap_insert (neighbor_min_heap, neighbor, cost);
+ neighbor->referrer = referrer;
+ memcpy (&neighbor->identity, peer, sizeof (struct GNUNET_PeerIdentity));
+ if (pkey != NULL) /* pkey will be null on direct neighbor addition */
{
-#if DEBUG_DV_GOSSIP
+ neighbor->pkey =
+ GNUNET_malloc (sizeof
+ (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
+ memcpy (neighbor->pkey, pkey,
+ sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
+ }
+ else
+ neighbor->pkey = pkey;
+
+ neighbor->last_activity = now;
+ neighbor->cost = cost;
+ neighbor->referrer_id = referrer_peer_id;
+ neighbor->our_id = our_id;
+ neighbor->hidden =
+ (cost ==
+ DIRECT_NEIGHBOR_COST)
+ ? (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 4) ==
+ 0) : GNUNET_NO;
+
+ GNUNET_CONTAINER_multihashmap_put (extended_neighbors, &peer->hashPubKey,
+ neighbor,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
+ if (referrer_peer_id != 0)
+ {
+ for (i = 0; i < MAX_OUTSTANDING_MESSAGES; i++)
+ {
+ if (referrer->pending_messages[i].sender_id == referrer_peer_id) /* We have a queued message from just learned about peer! */
+ {
+#if DEBUG_DV_MESSAGES
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: learned about peer %llu from which we have a previous unknown message, processing!\n",
+ my_short_id, referrer_peer_id);
+#endif
+ struct GNUNET_ATS_Information atsi[2];
+
+ atsi[0].type = htonl (GNUNET_ATS_QUALITY_NET_DISTANCE);
+ atsi[0].value = htonl (referrer->pending_messages[i].distance);
+ atsi[1].type = htonl (GNUNET_ATS_QUALITY_NET_DELAY);
+ atsi[1].value =
+ htonl ((uint32_t) referrer->pending_messages[i].
+ latency.rel_value);
+ handle_dv_data_message (NULL, &referrer->pending_messages[i].sender,
+ referrer->pending_messages[i].message, atsi,
+ 2);
+ GNUNET_free (referrer->pending_messages[i].message);
+ referrer->pending_messages[i].sender_id = 0;
+ }
+ }
+ }
+ if ((cost != DIRECT_NEIGHBOR_COST) && (neighbor->pkey != NULL))
+ {
+ /* Added neighbor, now send HELLO to transport */
+ hello_context = GNUNET_malloc (sizeof (struct HelloContext));
+ hello_context->direct_peer = &referrer->identity;
+ memcpy (&hello_context->distant_peer, peer,
+ sizeof (struct GNUNET_PeerIdentity));
+ hello_context->addresses_to_add = 1;
+ hello_msg =
+ GNUNET_HELLO_create (pkey, &generate_hello_address, hello_context);
+ GNUNET_assert (memcmp
+ (hello_context->direct_peer, &hello_context->distant_peer,
+ sizeof (struct GNUNET_PeerIdentity)) != 0);
+ addr1 = GNUNET_strdup (GNUNET_i2s (hello_context->direct_peer));
+ addr2 = GNUNET_strdup (GNUNET_i2s (&hello_context->distant_peer));
+#if DEBUG_DV
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "%s: Already know peer %s distance %d, referrer id %d!\n", "dv", GNUNET_i2s(peer), cost, referrer_peer_id);
+ "%s: GIVING HELLO size %d for %s via %s to TRANSPORT\n",
+ my_short_id, GNUNET_HELLO_size (hello_msg), addr2, addr1);
#endif
+ GNUNET_free (addr1);
+ GNUNET_free (addr2);
+ send_to_plugin (hello_context->direct_peer,
+ GNUNET_HELLO_get_header (hello_msg),
+ GNUNET_HELLO_size (hello_msg),
+ &hello_context->distant_peer, cost);
+ GNUNET_free (hello_context);
+ GNUNET_free (hello_msg);
}
+
+ }
+ else
+ {
#if DEBUG_DV_GOSSIP
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "%s: Size of extended_neighbors is %d\n", "dv", GNUNET_CONTAINER_multihashmap_size(ctx.extended_neighbors));
- GNUNET_CONTAINER_multihashmap_iterate(ctx.extended_neighbors, &print_neighbors, NULL);
+ "%s: Already know peer %s distance %d, referrer id %d!\n", "dv",
+ GNUNET_i2s (peer), cost, referrer_peer_id);
#endif
- GNUNET_free(neighbor_update);
- /* Old logic to remove entry and replace, not needed now as we only want to remove when full
- * or when the referring peer disconnects from us.
- *
- * FIXME: add new functionality, or check if it already exists (i forget)
- */
- /*
- GNUNET_DLL_remove (neighbor->referrer->referee_head,
- neighbor->referrer->referee_tail, neighbor);
- neighbor->referrer = referrer;
- GNUNET_DLL_insert (referrer->referee_head,
- referrer->referee_tail, neighbor);
- GNUNET_CONTAINER_heap_update_cost (ctx.neighbor_max_heap,
- neighbor->max_loc, cost);
- GNUNET_CONTAINER_heap_update_cost (ctx.neighbor_min_heap,
- neighbor->min_loc, cost);
- neighbor->referrer_id = referrer_peer_id;
- neighbor->last_activity = now;
- neighbor->cost = cost;
- */
+ }
+#if DEBUG_DV
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%s: Size of extended_neighbors is %d\n",
+ "dv", GNUNET_CONTAINER_multihashmap_size (extended_neighbors));
+#endif
+
+ GNUNET_free (neighbor_update);
+ return neighbor;
}
-static size_t
-generate_hello_address (void *cls, size_t max, void *buf)
+/**
+ * Core handler for dv disconnect messages. These will be used
+ * by us to tell transport via the dv plugin that a peer can
+ * no longer be contacted by us via a certain address. We should
+ * then propagate these messages on, given that the distance to
+ * the peer indicates we would have gossiped about it to others.
+ *
+ * @param cls closure
+ * @param peer peer which sent the message (immediate sender)
+ * @param message the message
+ * @param atsi performance data
+ * @param atsi_count number of entries in atsi
+ */
+static int
+handle_dv_disconnect_message (void *cls, const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_MessageHeader *message,
+ const struct GNUNET_ATS_Information *atsi,
+ unsigned int atsi_count)
{
- struct HelloContext *hello_context = cls;
- char *addr_buffer;
- size_t offset;
- size_t size;
- size_t ret;
-
- if (hello_context->addresses_to_add == 0)
- return 0;
+ struct DirectNeighbor *referrer;
+ struct DistantNeighbor *distant;
+ p2p_dv_MESSAGE_Disconnect *enc_message =
+ (p2p_dv_MESSAGE_Disconnect *) message;
- /* Hello "address" will be concatenation of distant peer and direct peer identities */
- size = 2 * sizeof(struct GNUNET_PeerIdentity);
- GNUNET_assert(max >= size);
+ if (ntohs (message->size) < sizeof (p2p_dv_MESSAGE_Disconnect))
+ {
+ return GNUNET_SYSERR; /* invalid message */
+ }
- addr_buffer = GNUNET_malloc(size);
- offset = 0;
- /* Copy the distant peer identity to buffer */
- memcpy(addr_buffer, &hello_context->distant_peer, sizeof(struct GNUNET_PeerIdentity));
- offset += sizeof(struct GNUNET_PeerIdentity);
- /* Copy the direct peer identity to buffer */
- memcpy(&addr_buffer[offset], hello_context->direct_peer, sizeof(struct GNUNET_PeerIdentity));
- ret = GNUNET_HELLO_add_address ("dv",
- GNUNET_TIME_relative_to_absolute
- (GNUNET_TIME_UNIT_HOURS), addr_buffer, size,
- buf, max);
+ referrer =
+ GNUNET_CONTAINER_multihashmap_get (direct_neighbors, &peer->hashPubKey);
+ if (referrer == NULL)
+ return GNUNET_OK;
- hello_context->addresses_to_add--;
+ distant = referrer->referee_head;
+ while (distant != NULL)
+ {
+ if (distant->referrer_id == ntohl (enc_message->peer_id))
+ {
+ distant_neighbor_free (distant);
+ distant = referrer->referee_head;
+ }
+ else
+ distant = distant->next;
+ }
- GNUNET_free(addr_buffer);
- return ret;
+ return GNUNET_OK;
}
* @param cls closure
* @param peer peer which sent the message (immediate sender)
* @param message the message
- * @param latency the latency of the connection we received the message from
- * @param distance the distance to the immediate peer
- */
-static int handle_dv_gossip_message (void *cls,
- const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_MessageHeader *message,
- struct GNUNET_TIME_Relative latency,
- uint32_t distance)
+ * @param atsi performance data
+ * @param atsi_count number of entries in atsi
+ */
+static int
+handle_dv_gossip_message (void *cls, const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_MessageHeader *message,
+ const struct GNUNET_ATS_Information *atsi,
+ unsigned int atsi_count)
{
- struct HelloContext *hello_context;
- struct GNUNET_HELLO_Message *hello_msg;
struct DirectNeighbor *referrer;
- p2p_dv_MESSAGE_NeighborInfo *enc_message = (p2p_dv_MESSAGE_NeighborInfo *)message;
+ p2p_dv_MESSAGE_NeighborInfo *enc_message =
+ (p2p_dv_MESSAGE_NeighborInfo *) message;
if (ntohs (message->size) < sizeof (p2p_dv_MESSAGE_NeighborInfo))
- {
- return GNUNET_SYSERR; /* invalid message */
- }
+ {
+ return GNUNET_SYSERR; /* invalid message */
+ }
-#if DEBUG_DV_GOSSIP
- char * encPeerAbout;
- char * encPeerFrom;
+#if DEBUG_DV_GOSSIP_RECEIPT
+ char *encPeerAbout;
+ char *encPeerFrom;
- encPeerAbout = GNUNET_strdup(GNUNET_i2s(&enc_message->neighbor));
- encPeerFrom = GNUNET_strdup(GNUNET_i2s(peer));
+ encPeerAbout = GNUNET_strdup (GNUNET_i2s (&enc_message->neighbor));
+ encPeerFrom = GNUNET_strdup (GNUNET_i2s (peer));
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "%s: Receives %s message from peer %s about peer %s!\n", "dv", "DV GOSSIP", encPeerFrom, encPeerAbout);
- GNUNET_free(encPeerAbout);
- GNUNET_free(encPeerFrom);
+ "%s: Received %s message from peer %s about peer %s id %u distance %d!\n",
+ GNUNET_i2s (&my_identity), "DV GOSSIP", encPeerFrom, encPeerAbout,
+ ntohl (enc_message->neighbor_id), ntohl (enc_message->cost) + 1);
+ GNUNET_free (encPeerAbout);
+ GNUNET_free (encPeerFrom);
#endif
- referrer = GNUNET_CONTAINER_multihashmap_get (ctx.direct_neighbors,
- &peer->hashPubKey);
+ referrer =
+ GNUNET_CONTAINER_multihashmap_get (direct_neighbors, &peer->hashPubKey);
if (referrer == NULL)
return GNUNET_OK;
addUpdateNeighbor (&enc_message->neighbor, &enc_message->pkey,
- ntohl (enc_message->neighbor_id),
- referrer, ntohl (enc_message->cost) + 1);
-
- hello_context = GNUNET_malloc(sizeof(struct HelloContext));
- hello_context->direct_peer = peer;
- memcpy(&hello_context->distant_peer, &enc_message->neighbor, sizeof(struct GNUNET_PeerIdentity));
- hello_context->addresses_to_add = 1;
- hello_msg = GNUNET_HELLO_create(&enc_message->pkey, &generate_hello_address, hello_context);
-#if DEBUG_DV_GOSSIP
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "%s: Sending %s message to plugin, type is %d, size %d!\n", "dv", "HELLO", ntohs(hello_hdr->type), ntohs(hello_hdr->size));
-#endif
+ ntohl (enc_message->neighbor_id), referrer,
+ ntohl (enc_message->cost) + 1);
- send_to_plugin(hello_context->direct_peer, GNUNET_HELLO_get_header(hello_msg), GNUNET_HELLO_size(hello_msg), &hello_context->distant_peer, ntohl(enc_message->cost) + 1);
- GNUNET_free(hello_context);
- GNUNET_free(hello_msg);
return GNUNET_OK;
}
+
+/**
+ * Iterate over all currently known peers, add them to the
+ * fast gossip list for this peer so we get DV routing information
+ * out as fast as possible!
+ *
+ * @param cls the direct neighbor we will gossip to
+ * @param key the hashcode of the peer
+ * @param value the distant neighbor we should add to the list
+ *
+ * @return GNUNET_YES to continue iteration, GNUNET_NO otherwise
+ */
+static int
+add_all_extended_peers (void *cls, const GNUNET_HashCode * key, void *value)
+{
+ struct NeighborSendContext *send_context = (struct NeighborSendContext *) cls;
+ struct DistantNeighbor *distant = (struct DistantNeighbor *) value;
+ struct FastGossipNeighborList *gossip_entry;
+
+ if (memcmp
+ (&send_context->toNeighbor->identity, &distant->identity,
+ sizeof (struct GNUNET_PeerIdentity)) == 0)
+ return GNUNET_YES; /* Don't gossip to a peer about itself! */
+
+#if SUPPORT_HIDING
+ if (distant->hidden == GNUNET_YES)
+ return GNUNET_YES; /* This peer should not be gossipped about (hidden) */
+#endif
+ gossip_entry = GNUNET_malloc (sizeof (struct FastGossipNeighborList));
+ gossip_entry->about = distant;
+
+ GNUNET_CONTAINER_DLL_insert_after (send_context->fast_gossip_list_head,
+ send_context->fast_gossip_list_tail,
+ send_context->fast_gossip_list_tail,
+ gossip_entry);
+
+ return GNUNET_YES;
+}
+
+#if INSANE_GOSSIP
+/**
+ * Iterator over hash map entries.
+ *
+ * @param cls closure
+ * @param key current key code
+ * @param value value in the hash map
+ * @return GNUNET_YES if we should continue to
+ * iterate,
+ * GNUNET_NO if not.
+ */
+static int
+gossip_all_to_all_iterator (void *cls, const GNUNET_HashCode * key,
+ void *abs_value)
+{
+ struct DirectNeighbor *direct = abs_value;
+
+ GNUNET_CONTAINER_multihashmap_iterate (extended_neighbors,
+ &add_all_extended_peers,
+ direct->send_context);
+
+ if (direct->send_context->task != GNUNET_SCHEDULER_NO_TASK)
+ GNUNET_SCHEDULER_cancel (direct->send_context->task);
+
+ direct->send_context->task =
+ GNUNET_SCHEDULER_add_now (&neighbor_send_task, direct->send_context);
+ return GNUNET_YES;
+}
+
+/**
+ * Task run during shutdown.
+ *
+ * @param cls unused
+ * @param tc unused
+ */
static void
-process_peerinfo (void *cls,
- const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_HELLO_Message *hello, uint32_t trust)
+gossip_all_to_all (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ GNUNET_CONTAINER_multihashmap_iterate (direct_neighbors,
+ &gossip_all_to_all_iterator, NULL);
+
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_SECONDS, 5),
+ &gossip_all_to_all, NULL);
+
+}
+#endif
+/**
+ * Iterate over all current direct peers, add newly connected peer
+ * to the fast gossip list for that peer so we get DV routing
+ * information out as fast as possible!
+ *
+ * @param cls the newly connected neighbor we will gossip about
+ * @param key the hashcode of the peer
+ * @param value the direct neighbor we should gossip to
+ *
+ * @return GNUNET_YES to continue iteration, GNUNET_NO otherwise
+ */
+static int
+add_all_direct_neighbors (void *cls, const GNUNET_HashCode * key, void *value)
+{
+ struct DirectNeighbor *direct = (struct DirectNeighbor *) value;
+ struct DirectNeighbor *to = (struct DirectNeighbor *) cls;
+ struct DistantNeighbor *distant;
+ struct NeighborSendContext *send_context = direct->send_context;
+ struct FastGossipNeighborList *gossip_entry;
+ char *direct_id;
+
+
+ distant =
+ GNUNET_CONTAINER_multihashmap_get (extended_neighbors,
+ &to->identity.hashPubKey);
+ if (distant == NULL)
+ {
+ return GNUNET_YES;
+ }
+
+ if (memcmp
+ (&direct->identity, &to->identity,
+ sizeof (struct GNUNET_PeerIdentity)) == 0)
+ {
+ return GNUNET_YES; /* Don't gossip to a peer about itself! */
+ }
+
+#if SUPPORT_HIDING
+ if (distant->hidden == GNUNET_YES)
+ return GNUNET_YES; /* This peer should not be gossipped about (hidden) */
+#endif
+ direct_id = GNUNET_strdup (GNUNET_i2s (&direct->identity));
+#if DEBUG_DV_GOSSIP
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "%s: adding peer %s to fast send list for %s\n", my_short_id,
+ GNUNET_i2s (&distant->identity), direct_id);
+#endif
+ GNUNET_free (direct_id);
+ gossip_entry = GNUNET_malloc (sizeof (struct FastGossipNeighborList));
+ gossip_entry->about = distant;
+
+ GNUNET_CONTAINER_DLL_insert_after (send_context->fast_gossip_list_head,
+ send_context->fast_gossip_list_tail,
+ send_context->fast_gossip_list_tail,
+ gossip_entry);
+ if (send_context->task != GNUNET_SCHEDULER_NO_TASK)
+ GNUNET_SCHEDULER_cancel (send_context->task);
+
+ send_context->task =
+ GNUNET_SCHEDULER_add_now (&neighbor_send_task, send_context);
+ //tc.reason = GNUNET_SCHEDULER_REASON_TIMEOUT;
+ //neighbor_send_task(send_context, &tc);
+ return GNUNET_YES;
+}
+
+/**
+ * Type of an iterator over the hosts. Note that each
+ * host will be called with each available protocol.
+ *
+ * @param cls closure
+ * @param peer id of the peer, NULL for last call
+ * @param hello hello message for the peer (can be NULL)
+ * @param err_msg NULL if successful, otherwise contains error message
+ */
+static void
+process_peerinfo (void *cls, const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_HELLO_Message *hello, const char *err_msg)
{
struct PeerIteratorContext *peerinfo_iterator = cls;
struct DirectNeighbor *neighbor = peerinfo_iterator->neighbor;
+ struct DistantNeighbor *distant = peerinfo_iterator->distant;
+
+#if DEBUG_DV_PEER_NUMBERS
+ char *neighbor_pid;
+#endif
+ int sent;
- if ((peer == NULL))/* && (neighbor->pkey == NULL))*/
+ if (err_msg != NULL)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ _("Error in communication with PEERINFO service\n"));
+ /* return; */
+ }
+ if (peer == NULL)
+ {
+ if (distant->pkey == NULL)
+ {
+#if DEBUG_DV
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Failed to get peerinfo information for this peer, retrying!\n");
+#endif
+ peerinfo_iterator->ic =
+ GNUNET_PEERINFO_iterate (peerinfo_handle,
+ &peerinfo_iterator->neighbor->identity,
+ GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_SECONDS, 3),
+ &process_peerinfo, peerinfo_iterator);
+ }
+ else
{
- /* FIXME: Remove peer! */
- GNUNET_free(peerinfo_iterator);
- return;
+ GNUNET_free (peerinfo_iterator);
}
+ return;
+ }
- if (memcmp(&neighbor->identity, peer, sizeof(struct GNUNET_PeerIdentity) != 0))
+ if (memcmp
+ (&neighbor->identity, peer, sizeof (struct GNUNET_PeerIdentity) != 0))
return;
- if ((hello != NULL) && (GNUNET_HELLO_get_key (hello, &neighbor->pkey) == GNUNET_OK))
+ if ((hello != NULL) &&
+ (GNUNET_HELLO_get_key (hello, &neighbor->pkey) == GNUNET_OK))
+ {
+ if (distant->pkey == NULL)
{
- GNUNET_CONTAINER_multihashmap_get_multiple(ctx.extended_neighbors,
- &peer->hashPubKey,
- &add_pkey_to_extended,
- &neighbor->pkey);
- neighbor->send_context->task = GNUNET_SCHEDULER_add_now(sched, &neighbor_send_task, neighbor->send_context);
+ distant->pkey =
+ GNUNET_malloc (sizeof
+ (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
+ memcpy (distant->pkey, &neighbor->pkey,
+ sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));
}
+
+ sent =
+ GNUNET_CONTAINER_multihashmap_iterate (extended_neighbors,
+ &add_all_extended_peers,
+ neighbor->send_context);
+ if (stats != NULL)
+ {
+ GNUNET_STATISTICS_update (stats,
+ "# distant peers gossiped to direct neighbors",
+ sent, GNUNET_NO);
+ }
+#if DEBUG_DV_PEER_NUMBERS
+ neighbor_pid = GNUNET_strdup (GNUNET_i2s (&neighbor->identity));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: Gossipped %d extended peers to %s\n",
+ GNUNET_i2s (&my_identity), sent, neighbor_pid);
+#endif
+ sent =
+ GNUNET_CONTAINER_multihashmap_iterate (direct_neighbors,
+ &add_all_direct_neighbors,
+ neighbor);
+ if (stats != NULL)
+ {
+ GNUNET_STATISTICS_update (stats,
+ "# direct peers gossiped to direct neighbors",
+ sent, GNUNET_NO);
+ }
+#if DEBUG_DV_PEER_NUMBERS
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: Gossipped about %s to %d direct peers\n",
+ GNUNET_i2s (&my_identity), neighbor_pid, sent);
+ GNUNET_free (neighbor_pid);
+#endif
+ neighbor->send_context->task =
+ GNUNET_SCHEDULER_add_now (&neighbor_send_task, neighbor->send_context);
+ }
}
+
/**
* Method called whenever a peer connects.
*
* @param cls closure
* @param peer peer identity this notification is about
- * @param latency reported latency of the connection with peer
- * @param distance reported distance (DV) to peer
+ * @param atsi performance data
+ * @param atsi_count number of entries in atsi
*/
-void handle_core_connect (void *cls,
- const struct GNUNET_PeerIdentity * peer,
- struct GNUNET_TIME_Relative latency,
- uint32_t distance)
+static void
+handle_core_connect (void *cls, const struct GNUNET_PeerIdentity *peer,
+ const struct GNUNET_ATS_Information *atsi,
+ unsigned int atsi_count)
{
struct DirectNeighbor *neighbor;
+ struct DistantNeighbor *about;
struct PeerIteratorContext *peerinfo_iterator;
-#if DEBUG_DV
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "%s: Receives core connect message for peer %s distance %d!\n", "dv", GNUNET_i2s(peer), distance);
-#endif
+ int sent;
- if ((distance == 0) && (GNUNET_CONTAINER_multihashmap_get(ctx.direct_neighbors, &peer->hashPubKey) == NULL))
+ uint32_t distance;
+
+ /* Check for connect to self message */
+ if (0 == memcmp (&my_identity, peer, sizeof (struct GNUNET_PeerIdentity)))
+ return;
+
+ distance = get_atsi_distance (atsi, atsi_count);
+ if ((distance == DIRECT_NEIGHBOR_COST) &&
+ (GNUNET_CONTAINER_multihashmap_get (direct_neighbors, &peer->hashPubKey)
+ == NULL))
{
- peerinfo_iterator = GNUNET_malloc(sizeof(struct PeerIteratorContext));
+ peerinfo_iterator = GNUNET_malloc (sizeof (struct PeerIteratorContext));
neighbor = GNUNET_malloc (sizeof (struct DirectNeighbor));
- neighbor->send_context = GNUNET_malloc(sizeof(struct NeighborSendContext));
+ neighbor->send_context =
+ GNUNET_malloc (sizeof (struct NeighborSendContext));
neighbor->send_context->toNeighbor = neighbor;
- neighbor->send_context->timeout = default_dv_delay; /* FIXME: base this on total gossip tasks, or bandwidth */
memcpy (&neighbor->identity, peer, sizeof (struct GNUNET_PeerIdentity));
- /*memcpy (&neighbor->pkey, ,sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded));*/
- GNUNET_CONTAINER_multihashmap_put (ctx.direct_neighbors,
- &peer->hashPubKey,
- neighbor, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
- addUpdateNeighbor (peer, NULL, 0, neighbor, 0);
+
+ GNUNET_assert (GNUNET_SYSERR !=
+ GNUNET_CONTAINER_multihashmap_put (direct_neighbors,
+ &peer->hashPubKey,
+ neighbor,
+ GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+ about = addUpdateNeighbor (peer, NULL, 0, neighbor, DIRECT_NEIGHBOR_COST);
+ peerinfo_iterator->distant = about;
peerinfo_iterator->neighbor = neighbor;
- peerinfo_iterator->ic = GNUNET_PEERINFO_iterate (cfg,
- sched,
- peer,
- 0,
- GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS, 15),
- &process_peerinfo, peerinfo_iterator);
- /* Only add once we get the publicKey of this guy
- *
- * neighbor->send_context->task = GNUNET_SCHEDULER_add_now(sched, &neighbor_send_task, neighbor->send_context);
- */
+ peerinfo_iterator->ic =
+ GNUNET_PEERINFO_iterate (peerinfo_handle, peer,
+ GNUNET_TIME_relative_multiply
+ (GNUNET_TIME_UNIT_SECONDS, 3),
+ &process_peerinfo, peerinfo_iterator);
+
+ if ((about != NULL) && (about->pkey == NULL))
+ {
+#if DEBUG_DV
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Newly added peer %s has NULL pkey!\n", GNUNET_i2s (peer));
+#endif
+ }
+ else if (about != NULL)
+ {
+ GNUNET_free (peerinfo_iterator);
+ }
}
else
{
+ about =
+ GNUNET_CONTAINER_multihashmap_get (extended_neighbors,
+ &peer->hashPubKey);
+ if ((GNUNET_CONTAINER_multihashmap_get (direct_neighbors, &peer->hashPubKey)
+ == NULL) && (about != NULL))
+ {
+ sent =
+ GNUNET_CONTAINER_multihashmap_iterate (direct_neighbors,
+ &add_distant_all_direct_neighbors,
+ about);
+ if (stats != NULL)
+ GNUNET_STATISTICS_update (stats,
+ "# direct peers gossiped to new direct neighbors",
+ sent, GNUNET_NO);
+ }
#if DEBUG_DV
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "%s: Distance (%d) greater than 0 or already know about peer (%s), not re-adding!\n", "dv", distance, GNUNET_i2s(peer));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "%s: Distance (%d) greater than %d or already know about peer (%s), not re-adding!\n",
+ "dv", distance, DIRECT_NEIGHBOR_COST, GNUNET_i2s (peer));
#endif
return;
}
* @param cls closure
* @param peer peer identity this notification is about
*/
-void handle_core_disconnect (void *cls,
- const struct GNUNET_PeerIdentity * peer)
+void
+handle_core_disconnect (void *cls, const struct GNUNET_PeerIdentity *peer)
{
struct DirectNeighbor *neighbor;
struct DistantNeighbor *referee;
+ struct FindDestinationContext fdc;
+ struct DisconnectContext disconnect_context;
+ struct PendingMessage *pending_pos;
#if DEBUG_DV
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"%s: Receives core peer disconnect message!\n", "dv");
#endif
+ /* Check for disconnect from self message */
+ if (0 == memcmp (&my_identity, peer, sizeof (struct GNUNET_PeerIdentity)))
+ return;
+
neighbor =
- GNUNET_CONTAINER_multihashmap_get (ctx.direct_neighbors, &peer->hashPubKey);
+ GNUNET_CONTAINER_multihashmap_get (direct_neighbors, &peer->hashPubKey);
+
if (neighbor == NULL)
+ {
+ return;
+ }
+
+ pending_pos = core_pending_head;
+ while (NULL != pending_pos)
+ {
+ if (0 ==
+ memcmp (&pending_pos->recipient, &neighbor->identity,
+ sizeof (struct GNUNET_PeerIdentity)))
{
- return;
+ GNUNET_CONTAINER_DLL_remove (core_pending_head, core_pending_tail,
+ pending_pos);
+ pending_pos = core_pending_head;
}
+ else
+ pending_pos = pending_pos->next;
+ }
+
while (NULL != (referee = neighbor->referee_head))
distant_neighbor_free (referee);
+
+ fdc.dest = NULL;
+ fdc.tid = 0;
+
+ GNUNET_CONTAINER_multihashmap_iterate (extended_neighbors, &find_distant_peer,
+ &fdc);
+
+ if (fdc.dest != NULL)
+ {
+ disconnect_context.direct = neighbor;
+ disconnect_context.distant = fdc.dest;
+ GNUNET_CONTAINER_multihashmap_iterate (direct_neighbors,
+ &schedule_disconnect_messages,
+ &disconnect_context);
+ }
+
GNUNET_assert (neighbor->referee_tail == NULL);
- GNUNET_CONTAINER_multihashmap_remove (ctx.direct_neighbors,
- &peer->hashPubKey, neighbor);
- if ((neighbor->send_context != NULL) && (neighbor->send_context->task != GNUNET_SCHEDULER_NO_TASK))
- GNUNET_SCHEDULER_cancel(sched, neighbor->send_context->task);
+ if (GNUNET_NO ==
+ GNUNET_CONTAINER_multihashmap_remove (direct_neighbors, &peer->hashPubKey,
+ neighbor))
+ {
+ GNUNET_break (0);
+ }
+ if ((neighbor->send_context != NULL) &&
+ (neighbor->send_context->task != GNUNET_SCHEDULER_NO_TASK))
+ GNUNET_SCHEDULER_cancel (neighbor->send_context->task);
GNUNET_free (neighbor);
}
* Process dv requests.
*
* @param cls closure
- * @param scheduler scheduler to use
* @param server the initialized server
* @param c configuration to use
*/
static void
-run (void *cls,
- struct GNUNET_SCHEDULER_Handle *scheduler,
- struct GNUNET_SERVER_Handle *server,
+run (void *cls, struct GNUNET_SERVER_Handle *server,
const struct GNUNET_CONFIGURATION_Handle *c)
{
- struct GNUNET_TIME_Relative timeout;
unsigned long long max_hosts;
- timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 5);
- sched = scheduler;
+
cfg = c;
/* FIXME: Read from config, or calculate, or something other than this! */
- max_hosts = 50;
- ctx.max_table_size = 100;
- ctx.fisheye_depth = 3;
-
- ctx.neighbor_min_heap =
- GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN);
- ctx.neighbor_max_heap =
- GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MAX);
-
- ctx.direct_neighbors = GNUNET_CONTAINER_multihashmap_create (max_hosts);
- ctx.extended_neighbors =
- GNUNET_CONTAINER_multihashmap_create (ctx.max_table_size * 3);
+ max_hosts = DEFAULT_DIRECT_CONNECTIONS;
+ max_table_size = DEFAULT_DV_SIZE;
+ fisheye_depth = DEFAULT_FISHEYE_DEPTH;
+
+ if (GNUNET_CONFIGURATION_have_value (cfg, "dv", "max_direct_connections"))
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONFIGURATION_get_value_number (cfg, "dv",
+ "max_direct_connections",
+ &max_hosts));
+
+ if (GNUNET_CONFIGURATION_have_value (cfg, "dv", "max_total_connections"))
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONFIGURATION_get_value_number (cfg, "dv",
+ "max_total_connections",
+ &max_table_size));
+
+
+ if (GNUNET_CONFIGURATION_have_value (cfg, "dv", "fisheye_depth"))
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_CONFIGURATION_get_value_number (cfg, "dv",
+ "fisheye_depth",
+ &fisheye_depth));
+
+ neighbor_min_heap =
+ GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN);
+ neighbor_max_heap =
+ GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MAX);
+
+ direct_neighbors = GNUNET_CONTAINER_multihashmap_create (max_hosts);
+ extended_neighbors =
+ GNUNET_CONTAINER_multihashmap_create (max_table_size * 3);
- client_transmit_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 5);
- default_dv_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 5);
GNUNET_SERVER_add_handlers (server, plugin_handlers);
- coreAPI =
- GNUNET_CORE_connect (sched,
- cfg,
- timeout,
- NULL, /* FIXME: anything we want to pass around? */
- &core_init,
- &handle_core_connect,
- &handle_core_disconnect,
- NULL,
- GNUNET_NO,
- NULL,
- GNUNET_NO,
- core_handlers);
+ coreAPI = GNUNET_CORE_connect (cfg, 1, NULL, /* FIXME: anything we want to pass around? */
+ &core_init, &handle_core_connect,
+ &handle_core_disconnect, NULL, GNUNET_NO, NULL,
+ GNUNET_NO, core_handlers);
if (coreAPI == NULL)
return;
- /* load (server); Huh? */
+
+ coreMST = GNUNET_SERVER_mst_create (&tokenized_message_handler, NULL);
+
+ peerinfo_handle = GNUNET_PEERINFO_connect (cfg);
+
+ if (peerinfo_handle == NULL)
+ {
+ GNUNET_CORE_disconnect (coreAPI);
+ return;
+ }
/* Scheduled the task to clean up when shutdown is called */
- cleanup_task = GNUNET_SCHEDULER_add_delayed (sched,
- GNUNET_TIME_UNIT_FOREVER_REL,
- &shutdown_task,
- NULL);
+ cleanup_task =
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
+ &shutdown_task, NULL);
}
main (int argc, char *const *argv)
{
return (GNUNET_OK ==
- GNUNET_SERVICE_run (argc,
- argv,
- "dv",
- GNUNET_SERVICE_OPTION_NONE,
+ GNUNET_SERVICE_run (argc, argv, "dv", GNUNET_SERVICE_OPTION_NONE,
&run, NULL)) ? 0 : 1;
}
projects / oweals / gnunet.git / blobdiff