*/
#include "platform.h"
+#include "gnunet_common.h"
#include "gnunet_constants.h"
#include "gnunet_protocols.h"
#include "gnunet_connection_lib.h"
#include "microhttpd.h"
#include <curl/curl.h>
-#define DEBUG_CURL GNUNET_NO
+#if BUILD_HTTPS
+#define LIBGNUNET_PLUGIN_TRANSPORT_INIT libgnunet_plugin_transport_https_init
+#define LIBGNUNET_PLUGIN_TRANSPORT_DONE libgnunet_plugin_transport_https_done
+#define LIBGNUNET_PLUGIN_TRANSPORT_COMPONENT transport_https
+#define PROTOCOL_PREFIX "https"
+#else
+#define LIBGNUNET_PLUGIN_TRANSPORT_INIT libgnunet_plugin_transport_http_init
+#define LIBGNUNET_PLUGIN_TRANSPORT_DONE libgnunet_plugin_transport_http_done
+#define LIBGNUNET_PLUGIN_TRANSPORT_COMPONENT transport_http
+#define PROTOCOL_PREFIX "http"
+#endif
+
#define DEBUG_HTTP GNUNET_NO
+#define DEBUG_CURL GNUNET_NO
+#define DEBUG_MHD GNUNET_NO
#define DEBUG_CONNECTIONS GNUNET_NO
+#define DEBUG_SESSION_SELECTION GNUNET_NO
+
+#define CURL_TCP_NODELAY GNUNET_YES
#define INBOUND GNUNET_NO
#define OUTBOUND GNUNET_YES
+
+
/**
* Text of the response sent back after the last bytes of a PUT
* request have been received (just to formally obey the HTTP
* id for next session
*/
size_t session_id_counter;
+
+ /**
+ * Last session used to send data
+ */
+ struct Session * last_session;
};
*/
struct GNUNET_STATISTICS_Handle *stats;
+ /**
+ * Plugin Port
+ */
unsigned int port_inbound;
struct GNUNET_CONTAINER_MultiHashMap *peers;
* This string is used to distinguish between connections and is added to the urls
*/
struct GNUNET_CRYPTO_HashAsciiEncoded my_ascii_hash_ident;
+
+ /**
+ * IPv4 Address the plugin binds to
+ */
+ struct sockaddr_in * bind4_address;
+
+ /**
+ * IPv6 Address the plugins binds to
+ */
+ struct sockaddr_in6 * bind6_address;
+
+ /**
+ * Hostname to bind to
+ */
+ char * bind_hostname;
+
+ /**
+ * Is IPv4 enabled?
+ */
+ int use_ipv6;
+
+ /**
+ * Is IPv6 enabled?
+ */
+ int use_ipv4;
+
+ /**
+ * Closure passed by MHD to the mhd_logger function
+ */
+ void * mhd_log;
+
+ /* only needed for HTTPS plugin */
+#if BUILD_HTTPS
+ /* The certificate MHD uses as an \0 terminated string */
+ char * cert;
+
+ /* The private key MHD uses as an \0 terminated string */
+ char * key;
+
+ /* crypto init string */
+ char * crypto_init;
+#endif
};
const void *addr,
size_t addrlen);
-static char * create_url(void * cls, const void * addr, size_t addrlen, size_t id)
+
+/**
+ * Call MHD to process pending ipv4 requests and then go back
+ * and schedule the next run.
+ */
+static void http_server_daemon_v4_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
+/**
+ * Call MHD to process pending ipv6 requests and then go back
+ * and schedule the next run.
+ */
+static void http_server_daemon_v6_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
+
+/**
+ * Function setting up curl handle and selecting message to send
+ * @param plugin plugin
+ * @param ses session to send data to
+ * @param con connection
+ * @return bytes sent to peer
+ */
+static int send_check_connections (struct Plugin *plugin, struct Session *ps);
+
+/**
+ * Function setting up file descriptors and scheduling task to run
+ * @param cls closure
+ * @param ses session to send data to
+ * @param
+ */
+static int curl_schedule (struct Plugin *plugin);
+
+
+/**
+ * Creates a valid url from passed address and id
+ * @param plugin plugin
+ * @param addr address to create url from
+ * @param addrlen address lenth
+ * @param id session id
+ * @return the created url
+ */
+static char * create_url(struct Plugin *plugin, const void * addr, size_t addrlen, size_t id)
{
- struct Plugin *plugin = cls;
char *url = NULL;
+ char *addr_str = (char *) http_plugin_address_to_string(NULL, addr, addrlen);
GNUNET_assert ((addr!=NULL) && (addrlen != 0));
GNUNET_asprintf(&url,
- "http://%s/%s;%u",
- http_plugin_address_to_string(NULL, addr, addrlen),
+ "%s://%s/%s;%u", PROTOCOL_PREFIX, addr_str,
(char *) (&plugin->my_ascii_hash_ident),id);
-
+ GNUNET_free_non_null(addr_str);
return url;
}
/**
* Removes a message from the linked list of messages
- * @param con connection to remove message from
- * @param msg message to remove
+ * @param ps session
+ * @param msg message
* @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
*/
static int remove_http_message (struct Session * ps, struct HTTP_Message * msg)
return GNUNET_OK;
}
+/**
+ * Iterator to remove peer context
+ * @param cls the plugin
+ * @key the peers public key hashcode
+ * @value the peer context
+ * @return GNUNET_YES on success
+ */
+int remove_peer_context_Iterator (void *cls, const GNUNET_HashCode *key, void *value)
+{
+ struct Plugin *plugin = cls;
+ struct HTTP_PeerContext * pc = value;
+ struct Session * ps = pc->head;
+ struct Session * tmp = NULL;
+ struct HTTP_Message * msg = NULL;
+ struct HTTP_Message * msg_tmp = NULL;
+#if DEBUG_HTTP
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Freeing context for peer `%s'\n",GNUNET_i2s(&pc->identity));
+#endif
+ GNUNET_CONTAINER_multihashmap_remove (plugin->peers, &pc->identity.hashPubKey, pc);
+ while (ps!=NULL)
+ {
+ plugin->env->session_end(plugin, &pc->identity, ps);
+ tmp = ps->next;
+
+ GNUNET_free_non_null (ps->addr);
+ GNUNET_free(ps->url);
+ if (ps->msgtok != NULL)
+ GNUNET_SERVER_mst_destroy (ps->msgtok);
+
+ msg = ps->pending_msgs_head;
+ while (msg!=NULL)
+ {
+ msg_tmp = msg->next;
+ GNUNET_free(msg);
+ msg = msg_tmp;
+ }
+ if (ps->direction==OUTBOUND)
+ {
+ if (ps->send_endpoint!=NULL)
+ curl_easy_cleanup(ps->send_endpoint);
+ if (ps->recv_endpoint!=NULL)
+ curl_easy_cleanup(ps->recv_endpoint);
+ }
+
+ GNUNET_free(ps);
+ ps=tmp;
+ }
+ GNUNET_free(pc);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ gettext_noop ("# HTTP peers active"),
+ -1,
+ GNUNET_NO);
+ return GNUNET_YES;
+}
+
+
/**
* Removes a session from the linked list of sessions
* @param pc peer context
* @param ps session
* @param call_msg_cont GNUNET_YES to call pending message continuations, otherwise no
- * @param call_msg_cont_result, result to call message continuations with
+ * @param call_msg_cont_result result to call message continuations with
* @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
*/
static int remove_session (struct HTTP_PeerContext * pc, struct Session * ps, int call_msg_cont, int call_msg_cont_result)
struct HTTP_Message * msg;
struct Plugin * plugin = ps->peercontext->plugin;
+#if DEBUG_CONNECTIONS
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: removing %s session %X with id %u\n", ps, (ps->direction == INBOUND) ? "inbound" : "outbound", ps, ps->session_id);
+#endif
plugin->env->session_end(plugin, &pc->identity, ps);
GNUNET_free_non_null (ps->addr);
GNUNET_SERVER_mst_destroy (ps->msgtok);
GNUNET_free(ps->url);
+ if (ps->direction==INBOUND)
+ {
+ if (ps->recv_endpoint != NULL)
+ {
+ curl_easy_cleanup(ps->recv_endpoint);
+ ps->recv_endpoint = NULL;
+ }
+ if (ps->send_endpoint != NULL)
+ {
+ curl_easy_cleanup(ps->send_endpoint);
+ ps->send_endpoint = NULL;
+ }
+ }
+
msg = ps->pending_msgs_head;
while (msg!=NULL)
{
{
msg->transmit_cont (msg->transmit_cont_cls,&pc->identity,call_msg_cont_result);
}
- GNUNET_free(msg);
GNUNET_CONTAINER_DLL_remove(ps->pending_msgs_head,ps->pending_msgs_head,msg);
+ GNUNET_free(msg);
msg = ps->pending_msgs_head;
}
GNUNET_CONTAINER_DLL_remove(pc->head,pc->tail,ps);
GNUNET_free(ps);
ps = NULL;
+
+ /* no sessions left remove peer */
+ if (pc->head==NULL)
+ {
+#if DEBUG_HTTP
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No sessions left for peer `%s', removing context\n",GNUNET_i2s(&pc->identity));
+#endif
+ remove_peer_context_Iterator(plugin, &pc->identity.hashPubKey, pc);
+ }
+
return GNUNET_OK;
}
-static struct Session * get_Session (void * cls, struct HTTP_PeerContext *pc, const void * addr, size_t addr_len)
+
+/**
+ * Add the IP of our network interface to the list of
+ * our external IP addresses.
+ *
+ * @param cls the 'struct Plugin*'
+ * @param name name of the interface
+ * @param isDefault do we think this may be our default interface
+ * @param addr address of the interface
+ * @param addrlen number of bytes in addr
+ * @return GNUNET_OK to continue iterating
+ */
+static int
+process_interfaces (void *cls,
+ const char *name,
+ int isDefault,
+ const struct sockaddr *addr, socklen_t addrlen)
{
- struct Session * cc = pc->head;
- struct Session * con = NULL;
- unsigned int count = 0;
+ struct Plugin *plugin = cls;
+ struct IPv4HttpAddress * t4;
+ struct IPv6HttpAddress * t6;
+ int af;
- GNUNET_assert((addr_len == sizeof (struct IPv4HttpAddress)) || (addr_len == sizeof (struct IPv6HttpAddress)));
- while (cc!=NULL)
- {
- if (addr_len == cc->addrlen)
+
+ GNUNET_assert(cls !=NULL);
+ af = addr->sa_family;
+ if ((af == AF_INET) && (plugin->use_ipv4 == GNUNET_YES) && (plugin->bind6_address == NULL))
{
- if (0 == memcmp(cc->addr, addr, addr_len))
+ struct in_addr bnd_cmp = ((struct sockaddr_in *) addr)->sin_addr;
+ t4 = GNUNET_malloc(sizeof(struct IPv4HttpAddress));
+ /* Not skipping loopback addresses
+ if (INADDR_LOOPBACK == ntohl(((struct sockaddr_in *) addr)->sin_addr.s_addr))
{
- /* connection can not be used, since it is disconnected */
- if ((cc->recv_force_disconnect==GNUNET_NO) && (cc->send_force_disconnect==GNUNET_NO))
- con = cc;
- break;
+
+ return GNUNET_OK;
+ }
+ */
+ t4->ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
+ t4->u_port = htons (plugin->port_inbound);
+ if (plugin->bind4_address != NULL)
+ {
+ if (0 == memcmp(&plugin->bind4_address->sin_addr, &bnd_cmp, sizeof (struct in_addr)))
+ {
+ plugin->env->notify_address(plugin->env->cls,PROTOCOL_PREFIX,t4, sizeof (struct IPv4HttpAddress), GNUNET_TIME_UNIT_FOREVER_REL);
+ }
+ }
+ else
+ {
+ plugin->env->notify_address(plugin->env->cls,PROTOCOL_PREFIX,t4, sizeof (struct IPv4HttpAddress), GNUNET_TIME_UNIT_FOREVER_REL);
}
+ GNUNET_free (t4);
}
- count++;
- cc=cc->next;
- }
- return con;
+ else if ((af == AF_INET6) && (plugin->use_ipv6 == GNUNET_YES) && (plugin->bind4_address == NULL))
+ {
+ struct in6_addr bnd_cmp6 = ((struct sockaddr_in6 *) addr)->sin6_addr;
+ if (IN6_IS_ADDR_LINKLOCAL (&((struct sockaddr_in6 *) addr)->sin6_addr))
+ {
+ return GNUNET_OK;
+ }
+ t6 = GNUNET_malloc(sizeof(struct IPv6HttpAddress));
+ GNUNET_assert(t6 != NULL);
+ if (plugin->bind6_address != NULL)
+ {
+ if (0 == memcmp(&plugin->bind6_address->sin6_addr, &bnd_cmp6, sizeof (struct in6_addr)))
+ {
+ memcpy (&t6->ipv6_addr,
+ &((struct sockaddr_in6 *) addr)->sin6_addr,
+ sizeof (struct in6_addr));
+ t6->u6_port = htons (plugin->port_inbound);
+ plugin->env->notify_address(plugin->env->cls,PROTOCOL_PREFIX,t6,sizeof (struct IPv6HttpAddress) , GNUNET_TIME_UNIT_FOREVER_REL);
+ }
+ }
+ else
+ {
+ memcpy (&t6->ipv6_addr,
+ &((struct sockaddr_in6 *) addr)->sin6_addr,
+ sizeof (struct in6_addr));
+ t6->u6_port = htons (plugin->port_inbound);
+ plugin->env->notify_address(plugin->env->cls,PROTOCOL_PREFIX,t6,sizeof (struct IPv6HttpAddress) , GNUNET_TIME_UNIT_FOREVER_REL);
+ }
+ GNUNET_free (t6);
+ }
+ return GNUNET_OK;
}
+/**
+ * External logging function for MHD
+ * @param arg arguments
+ * @param fmt format string
+ * @param ap list of arguments
+ */
+void mhd_logger (void * arg, const char * fmt, va_list ap)
+{
+ char text[1024];
+ vsnprintf(text, 1024, fmt, ap);
+ va_end(ap);
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,"MHD: %s \n", text);
+}
+
/**
* Callback called by MHD when a connection is terminated
+ * @param cls closure
+ * @param connection the terminated connection
+ * @httpSessionCache the mhd session reference
*/
static void mhd_termination_cb (void *cls, struct MHD_Connection * connection, void **httpSessionCache)
{
/* if both connections disconnected, remove session */
if ((ps->send_connected == GNUNET_NO) && (ps->recv_connected == GNUNET_NO))
{
+ GNUNET_STATISTICS_update (pc->plugin->env->stats,
+ gettext_noop ("# HTTP inbound sessions for peers active"),
+ -1,
+ GNUNET_NO);
remove_session(pc,ps,GNUNET_YES,GNUNET_SYSERR);
}
}
+/**
+ * Callback called by MessageStreamTokenizer when a message has arrived
+ * @param cls current session as closure
+ * @param client clien
+ * @param message the message to be forwarded to transport service
+ */
+
static void mhd_write_mst_cb (void *cls,
void *client,
const struct GNUNET_MessageHeader *message)
{
struct Session *ps = cls;
- struct HTTP_PeerContext *pc = ps->peercontext;
GNUNET_assert(ps != NULL);
- GNUNET_assert(pc != NULL);
+ struct HTTP_PeerContext *pc = ps->peercontext;
+ GNUNET_assert(pc != NULL);
+#if DEBUG_HTTP
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Connection %X: Forwarding message to transport service, type %u and size %u from `%s' (`%s')\n",
ps,
ntohs(message->type),
ntohs(message->size),
GNUNET_i2s(&(ps->peercontext)->identity),http_plugin_address_to_string(NULL,ps->addr,ps->addrlen));
-
+#endif
pc->plugin->env->receive (ps->peercontext->plugin->env->cls,
&pc->identity,
message, 1, ps,
0);
}
-static void curl_receive_mst_cb (void *cls,
- void *client,
- const struct GNUNET_MessageHeader *message)
-{
- struct Session *ps = cls;
- struct HTTP_PeerContext *pc = ps->peercontext;
- GNUNET_assert(ps != NULL);
- GNUNET_assert(pc != NULL);
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Connection %X: Forwarding message to transport service, type %u and size %u from `%s' (`%s')\n",
- ps,
- ntohs(message->type),
- ntohs(message->size),
- GNUNET_i2s(&(pc->identity)),http_plugin_address_to_string(NULL,ps->addr,ps->addrlen));
-
- pc->plugin->env->receive (pc->plugin->env->cls,
- &pc->identity,
- message, 1, ps,
- ps->addr,
- ps->addrlen);
-}
-
-
/**
- * Check if ip is allowed to connect.
+ * Check if incoming connection is accepted.
+ * NOTE: Here every connection is accepted
+ * @param cls plugin as closure
+ * @param addr address of incoming connection
+ * @param addr_len address length of incoming connection
+ * @return MHD_YES if connection is accepted, MHD_NO if connection is rejected
+ *
*/
static int
-mhd_accept_cb (void *cls,
- const struct sockaddr *addr, socklen_t addr_len)
+mhd_accept_cb (void *cls, const struct sockaddr *addr, socklen_t addr_len)
{
#if 0
struct Plugin *plugin = cls;
return MHD_YES;
}
+
+/**
+ * Callback called by MHD when it needs data to send
+ * @param cls current session
+ * @param pos position in buffer
+ * @param buf the buffer to write data to
+ * @param max max number of bytes available in buffer
+ * @return bytes written to buffer
+ */
int mhd_send_callback (void *cls, uint64_t pos, char *buf, int max)
{
- int bytes_read = 0;
-
struct Session * ps = cls;
struct HTTP_PeerContext * pc;
struct HTTP_Message * msg;
+ int bytes_read = 0;
GNUNET_assert (ps!=NULL);
+
pc = ps->peercontext;
msg = ps->pending_msgs_tail;
if (ps->send_force_disconnect==GNUNET_YES)
*/
static int
mdh_access_cb (void *cls,
- struct MHD_Connection *mhd_connection,
- const char *url,
- const char *method,
- const char *version,
- const char *upload_data,
- size_t * upload_data_size, void **httpSessionCache)
+ struct MHD_Connection *mhd_connection,
+ const char *url,
+ const char *method,
+ const char *version,
+ const char *upload_data,
+ size_t * upload_data_size, void **httpSessionCache)
{
struct Plugin *plugin = cls;
struct MHD_Response *response;
int res = GNUNET_NO;
int send_error_to_client;
- void * addr;
- size_t addr_len;
+ void * addr = NULL;
+ size_t addr_len = 0 ;
GNUNET_assert(cls !=NULL);
send_error_to_client = GNUNET_NO;
response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);
res = MHD_queue_response (mhd_connection, MHD_HTTP_NOT_FOUND, response);
MHD_destroy_response (response);
+#if DEBUG_CONNECTIONS
if (res == MHD_YES)
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, sent HTTP 1.1/404\n");
else
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, could not send error\n");
+#endif
return res;
}
}
pc = GNUNET_malloc(sizeof (struct HTTP_PeerContext));
pc->plugin = plugin;
pc->session_id_counter=1;
+ pc->last_session = NULL;
memcpy(&pc->identity, &pi_in, sizeof(struct GNUNET_PeerIdentity));
GNUNET_CONTAINER_multihashmap_put(plugin->peers, &pc->identity.hashPubKey, pc, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ gettext_noop ("# HTTP peers active"),
+ 1,
+ GNUNET_NO);
}
conn_info = MHD_get_connection_info(mhd_connection, MHD_CONNECTION_INFO_CLIENT_ADDRESS );
addr_len = sizeof(struct IPv6HttpAddress);
}
+ GNUNET_assert (addr != NULL);
+ GNUNET_assert (addr_len != 0);
- //ps = get_Session(plugin, pc, addr, addr_len);
ps = NULL;
/* only inbound sessions here */
ps->session_id =id_num;
ps->url = create_url (plugin, ps->addr, ps->addrlen, ps->session_id);
GNUNET_CONTAINER_DLL_insert(pc->head,pc->tail,ps);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ gettext_noop ("# HTTP inbound sessions for peers active"),
+ 1,
+ GNUNET_NO);
}
*httpSessionCache = ps;
if (ps->msgtok==NULL)
ps->msgtok = GNUNET_SERVER_mst_create (&mhd_write_mst_cb, ps);
-
+#if DEBUG_HTTP
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: HTTP Daemon has new an incoming `%s' request from peer `%s' (`%s')\n",
ps,
method,
GNUNET_i2s(&pc->identity),
http_plugin_address_to_string(NULL, ps->addr, ps->addrlen));
+#endif
}
/* Is it a PUT or a GET request */
return MHD_NO;
}
-
-/**
- * Call MHD to process pending ipv4 requests and then go back
- * and schedule the next run.
- */
-static void http_server_daemon_v4_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
-/**
- * Call MHD to process pending ipv6 requests and then go back
- * and schedule the next run.
- */
-static void http_server_daemon_v6_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
-
/**
* Function that queries MHD's select sets and
* starts the task waiting for them.
+ * @param plugin plugin
+ * @param daemon_handle the MHD daemon handle
+ * @return gnunet task identifier
*/
static GNUNET_SCHEDULER_TaskIdentifier
-http_server_daemon_prepare (void * cls, struct MHD_Daemon *daemon_handle)
+http_server_daemon_prepare (struct Plugin *plugin , struct MHD_Daemon *daemon_handle)
{
- struct Plugin *plugin = cls;
GNUNET_SCHEDULER_TaskIdentifier ret;
fd_set rs;
fd_set ws;
int haveto;
struct GNUNET_TIME_Relative tv;
- GNUNET_assert(cls !=NULL);
ret = GNUNET_SCHEDULER_NO_TASK;
FD_ZERO(&rs);
FD_ZERO(&ws);
}
/**
- * Call MHD to process pending requests and then go back
+ * Call MHD IPv4 to process pending requests and then go back
* and schedule the next run.
+ * @param cls plugin as closure
+ * @param tc task context
*/
static void http_server_daemon_v4_run (void *cls,
const struct GNUNET_SCHEDULER_TaskContext *tc)
GNUNET_assert (MHD_YES == MHD_run (plugin->http_server_daemon_v4));
plugin->http_server_task_v4 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v4);
- return;
-}
+ }
/**
- * Call MHD to process pending requests and then go back
+ * Call MHD IPv6 to process pending requests and then go back
* and schedule the next run.
+ * @param cls plugin as closure
+ * @param tc task context
*/
static void http_server_daemon_v6_run (void *cls,
const struct GNUNET_SCHEDULER_TaskContext *tc)
GNUNET_assert (MHD_YES == MHD_run (plugin->http_server_daemon_v6));
plugin->http_server_task_v6 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v6);
- return;
}
-/**
- * Function setting up curl handle and selecting message to send
- * @param cls plugin
- * @param ses session to send data to
- * @param con connection
- * @return bytes sent to peer
- */
-static ssize_t send_check_connections (void *cls, struct Session *ps);
-
-static size_t curl_get_header_function( void *ptr, size_t size, size_t nmemb, void *stream)
+static size_t curl_get_header_cb( void *ptr, size_t size, size_t nmemb, void *stream)
{
struct Session * ps = stream;
- char * tmp;
- size_t len = size * nmemb;
long http_result = 0;
int res;
/* Getting last http result code */
+ GNUNET_assert(NULL!=ps);
if (ps->recv_connected==GNUNET_NO)
{
- GNUNET_assert(NULL!=ps);
res = curl_easy_getinfo(ps->recv_endpoint, CURLINFO_RESPONSE_CODE, &http_result);
if (CURLE_OK == res)
{
}
}
+#if DEBUG_CURL
+ char * tmp;
+ size_t len = size * nmemb;
tmp = NULL;
if ((size * nmemb) < SIZE_MAX)
tmp = GNUNET_malloc (len+1);
if (tmp[len-2] == 13)
tmp[len-2]= '\0';
}
-#if DEBUG_HTTP
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Header: `%s' %u \n",tmp, http_result);
-#endif
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Header: %s\n",ps,tmp);
}
- if (NULL != tmp)
- GNUNET_free (tmp);
+ GNUNET_free_non_null (tmp);
+#endif
return size * nmemb;
}
-static size_t curl_put_header_function( void *ptr, size_t size, size_t nmemb, void *stream)
+/**
+ * Callback called by libcurl when new headers arrive
+ * Used to get HTTP result for curl operations
+ * @param ptr stream to read from
+ * @param size size of one char element
+ * @param nmemb number of char elements
+ * @param stream closure set by user
+ * @return bytes read by function
+ */
+
+static size_t curl_put_header_cb( void *ptr, size_t size, size_t nmemb, void *stream)
{
struct Session * ps = stream;
if (tmp[len-2] == 13)
tmp[len-2]= '\0';
}
-#if DEBUG_HTTP
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Header: `%s' %u \n",tmp, http_result);
-#endif
}
- if (NULL != tmp)
- GNUNET_free (tmp);
+
+ GNUNET_free_non_null (tmp);
return size * nmemb;
}
size_t len;
if (ps->send_active == GNUNET_NO)
+ {
return CURL_READFUNC_PAUSE;
-
+ }
if ((ps->pending_msgs_tail == NULL) && (ps->send_active == GNUNET_YES))
{
return CURL_READFUNC_PAUSE;
}
- msg = ps->pending_msgs_tail;
+ GNUNET_assert (msg!=NULL);
+
/* data to send */
if (msg->pos < msg->size)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Message with %u bytes sent, removing message from queue \n",ps, msg->pos);
#endif
/* Calling transmit continuation */
- if (( NULL != ps->pending_msgs_tail) && (NULL != ps->pending_msgs_tail->transmit_cont))
+ if (NULL != ps->pending_msgs_tail->transmit_cont)
msg->transmit_cont (ps->pending_msgs_tail->transmit_cont_cls,&(ps->peercontext)->identity,GNUNET_OK);
remove_http_message(ps, msg);
}
return bytes_sent;
}
+static void curl_receive_mst_cb (void *cls,
+ void *client,
+ const struct GNUNET_MessageHeader *message)
+{
+ struct Session *ps = cls;
+ GNUNET_assert(ps != NULL);
+
+ struct HTTP_PeerContext *pc = ps->peercontext;
+ GNUNET_assert(pc != NULL);
+#if DEBUG_HTTP
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Connection %X: Forwarding message to transport service, type %u and size %u from `%s' (`%s')\n",
+ ps,
+ ntohs(message->type),
+ ntohs(message->size),
+ GNUNET_i2s(&(pc->identity)),http_plugin_address_to_string(NULL,ps->addr,ps->addrlen));
+#endif
+ pc->plugin->env->receive (pc->plugin->env->cls,
+ &pc->identity,
+ message, 1, ps,
+ ps->addr,
+ ps->addrlen);
+}
+
+
/**
* Callback method used with libcurl
* Method is called when libcurl needs to write data during sending
}
+static void curl_handle_finished (struct Plugin *plugin)
+{
+ struct Session *ps = NULL;
+ struct HTTP_PeerContext *pc = NULL;
+ struct CURLMsg *msg;
+ struct HTTP_Message * cur_msg = NULL;
+
+ int msgs_in_queue;
+ char * tmp;
+ long http_result;
+
+ do
+ {
+ msg = curl_multi_info_read (plugin->multi_handle, &msgs_in_queue);
+ if ((msgs_in_queue == 0) || (msg == NULL))
+ break;
+ /* get session for affected curl handle */
+ GNUNET_assert ( msg->easy_handle != NULL );
+ curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &tmp);
+ ps = (struct Session *) tmp;
+ GNUNET_assert ( ps != NULL );
+ pc = ps->peercontext;
+ GNUNET_assert ( pc != NULL );
+ switch (msg->msg)
+ {
+
+ case CURLMSG_DONE:
+ if ( (msg->data.result != CURLE_OK) &&
+ (msg->data.result != CURLE_GOT_NOTHING) )
+ {
+ /* sending msg failed*/
+ if (msg->easy_handle == ps->send_endpoint)
+ {
+ #if DEBUG_CONNECTIONS
+ GNUNET_log(GNUNET_ERROR_TYPE_INFO,
+ _("Connection %X: HTTP PUT to peer `%s' (`%s') failed: `%s' `%s'\n"),
+ ps,
+ GNUNET_i2s(&pc->identity),
+ http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
+ "curl_multi_perform",
+ curl_easy_strerror (msg->data.result));
+ #endif
+ ps->send_connected = GNUNET_NO;
+ ps->send_active = GNUNET_NO;
+ curl_multi_remove_handle(plugin->multi_handle,ps->send_endpoint);
+ //curl_easy_cleanup(ps->send_endpoint);
+ //ps->send_endpoint=NULL;
+ cur_msg = ps->pending_msgs_tail;
+ if (( NULL != cur_msg) && ( NULL != cur_msg->transmit_cont))
+ cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_SYSERR);
+ }
+ /* GET connection failed */
+ if (msg->easy_handle == ps->recv_endpoint)
+ {
+ #if DEBUG_CONNECTIONS
+ GNUNET_log(GNUNET_ERROR_TYPE_INFO,
+ _("Connection %X: HTTP GET to peer `%s' (`%s') failed: `%s' `%s'\n"),
+ ps,
+ GNUNET_i2s(&pc->identity),
+ http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
+ "curl_multi_perform",
+ curl_easy_strerror (msg->data.result));
+ #endif
+ ps->recv_connected = GNUNET_NO;
+ ps->recv_active = GNUNET_NO;
+ curl_multi_remove_handle(plugin->multi_handle,ps->recv_endpoint);
+ //curl_easy_cleanup(ps->recv_endpoint);
+ //ps->recv_endpoint=NULL;
+ }
+ }
+ else
+ {
+ if (msg->easy_handle == ps->send_endpoint)
+ {
+ GNUNET_assert (CURLE_OK == curl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &http_result));
+ #if DEBUG_CONNECTIONS
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Connection %X: HTTP PUT connection to peer `%s' (`%s') was closed with HTTP code %u\n",
+ ps,
+ GNUNET_i2s(&pc->identity),
+ http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
+ http_result);
+ #endif
+ /* Calling transmit continuation */
+ cur_msg = ps->pending_msgs_tail;
+ if (( NULL != cur_msg) && (NULL != cur_msg->transmit_cont))
+ {
+ /* HTTP 1xx : Last message before here was informational */
+ if ((http_result >=100) && (http_result < 200))
+ cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
+ /* HTTP 2xx: successful operations */
+ if ((http_result >=200) && (http_result < 300))
+ cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
+ /* HTTP 3xx..5xx: error */
+ if ((http_result >=300) && (http_result < 600))
+ cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_SYSERR);
+ }
+ ps->send_connected = GNUNET_NO;
+ ps->send_active = GNUNET_NO;
+ curl_multi_remove_handle(plugin->multi_handle,ps->send_endpoint);
+ //curl_easy_cleanup(ps->send_endpoint);
+ //ps->send_endpoint =NULL;
+ }
+ if (msg->easy_handle == ps->recv_endpoint)
+ {
+ #if DEBUG_CONNECTIONS
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Connection %X: HTTP GET connection to peer `%s' (`%s') was closed with HTTP code %u\n",
+ ps,
+ GNUNET_i2s(&pc->identity),
+ http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
+ http_result);
+ #endif
+ ps->recv_connected = GNUNET_NO;
+ ps->recv_active = GNUNET_NO;
+ curl_multi_remove_handle(plugin->multi_handle,ps->recv_endpoint);
+ //curl_easy_cleanup(ps->recv_endpoint);
+ //ps->recv_endpoint=NULL;
+ }
+ }
+ if ((ps->recv_connected == GNUNET_NO) && (ps->send_connected == GNUNET_NO))
+ remove_session (pc, ps, GNUNET_YES, GNUNET_SYSERR);
+ break;
+ default:
+ break;
+ }
+ }
+ while ( (msgs_in_queue > 0) );
+}
+
+
+/**
+ * Task performing curl operations
+ * @param cls plugin as closure
+ * @param tc gnunet scheduler task context
+ */
+static void curl_perform (void *cls,
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+ struct Plugin *plugin = cls;
+ static unsigned int handles_last_run;
+ int running;
+ CURLMcode mret;
+
+ GNUNET_assert(cls !=NULL);
+
+ plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
+ if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
+ return;
+ do
+ {
+ running = 0;
+ mret = curl_multi_perform (plugin->multi_handle, &running);
+ if ((running < handles_last_run) && (running>0))
+ curl_handle_finished(plugin);
+ handles_last_run = running;
+ }
+ while (mret == CURLM_CALL_MULTI_PERFORM);
+ curl_schedule(plugin);
+}
+
+
/**
* Function setting up file descriptors and scheduling task to run
- * @param cls closure
- * @param ses session to send data to
- * @param
+ *
+ * @param cls plugin as closure
+ * @return GNUNET_SYSERR for hard failure, GNUNET_OK for ok
*/
-static int curl_schedule(void *cls );
+static int curl_schedule(struct Plugin *plugin)
+{
+ fd_set rs;
+ fd_set ws;
+ fd_set es;
+ int max;
+ struct GNUNET_NETWORK_FDSet *grs;
+ struct GNUNET_NETWORK_FDSet *gws;
+ long to;
+ CURLMcode mret;
+ /* Cancel previous scheduled task */
+ if (plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_curl_task);
+ plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ max = -1;
+ FD_ZERO (&rs);
+ FD_ZERO (&ws);
+ FD_ZERO (&es);
+ mret = curl_multi_fdset (plugin->multi_handle, &rs, &ws, &es, &max);
+ if (mret != CURLM_OK)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _("%s failed at %s:%d: `%s'\n"),
+ "curl_multi_fdset", __FILE__, __LINE__,
+ curl_multi_strerror (mret));
+ return GNUNET_SYSERR;
+ }
+ mret = curl_multi_timeout (plugin->multi_handle, &to);
+ if (mret != CURLM_OK)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _("%s failed at %s:%d: `%s'\n"),
+ "curl_multi_timeout", __FILE__, __LINE__,
+ curl_multi_strerror (mret));
+ return GNUNET_SYSERR;
+ }
+
+ grs = GNUNET_NETWORK_fdset_create ();
+ gws = GNUNET_NETWORK_fdset_create ();
+ GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
+ GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
+ plugin->http_curl_task = GNUNET_SCHEDULER_add_select (plugin->env->sched,
+ GNUNET_SCHEDULER_PRIORITY_DEFAULT,
+ GNUNET_SCHEDULER_NO_TASK,
+ (to == -1) ? GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5) : GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, to),
+ grs,
+ gws,
+ &curl_perform,
+ plugin);
+ GNUNET_NETWORK_fdset_destroy (gws);
+ GNUNET_NETWORK_fdset_destroy (grs);
+ return GNUNET_OK;
+}
+
+/**
+ * Function to log curl debug messages with GNUNET_log
+ * @param curl handle
+ * @param type curl_infotype
+ * @param data data
+ * @param size size
+ * @param cls closure
+ * @return 0
+ */
+int curl_logger (CURL * curl, curl_infotype type , char * data, size_t size , void * cls)
+{
+ char * text = GNUNET_malloc(size+2);
+ if (type == CURLINFO_TEXT)
+ {
+ memcpy(text,data,size);
+ if (text[size-1] == '\n')
+ text[size] = '\0';
+ else
+ {
+ text[size] = '\n';
+ text[size+1] = '\0';
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"CURL: Connection %X - %s", cls, text);
+ GNUNET_free(text);
+ }
+ return 0;
+}
/**
* Function setting up curl handle and selecting message to send
- * @param cls plugin
- * @param ses session to send data to
- * @param con connection
+ *
+ * @param plugin plugin
+ * @param ps session
* @return GNUNET_SYSERR on failure, GNUNET_NO if connecting, GNUNET_YES if ok
*/
-static ssize_t send_check_connections (void *cls, struct Session *ps)
+static int send_check_connections (struct Plugin *plugin, struct Session *ps)
{
- struct Plugin *plugin = cls;
CURLMcode mret;
struct HTTP_Message * msg;
struct GNUNET_TIME_Relative timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
- GNUNET_assert(cls !=NULL);
-
if (ps->direction == OUTBOUND)
{
/* RECV DIRECTION */
/* Check if session is connected to receive data, otherwise connect to peer */
if (ps->recv_connected == GNUNET_NO)
{
+ int fresh = GNUNET_NO;
if (ps->recv_endpoint == NULL)
{
- ps->recv_endpoint = curl_easy_init();
+ fresh = GNUNET_YES;
+ ps->recv_endpoint = curl_easy_init();
+ }
#if DEBUG_CURL
curl_easy_setopt(ps->recv_endpoint, CURLOPT_VERBOSE, 1L);
+ curl_easy_setopt(ps->recv_endpoint, CURLOPT_DEBUGFUNCTION , &curl_logger);
+ curl_easy_setopt(ps->recv_endpoint, CURLOPT_DEBUGDATA , ps->recv_endpoint);
+#endif
+#if BUILD_HTTPS
+ curl_easy_setopt (ps->recv_endpoint, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
+ curl_easy_setopt(ps->recv_endpoint, CURLOPT_SSL_VERIFYPEER, 0);
+ curl_easy_setopt(ps->recv_endpoint, CURLOPT_SSL_VERIFYHOST, 0);
#endif
curl_easy_setopt(ps->recv_endpoint, CURLOPT_URL, ps->url);
- curl_easy_setopt(ps->recv_endpoint, CURLOPT_HEADERFUNCTION, &curl_get_header_function);
+ curl_easy_setopt(ps->recv_endpoint, CURLOPT_HEADERFUNCTION, &curl_get_header_cb);
curl_easy_setopt(ps->recv_endpoint, CURLOPT_WRITEHEADER, ps);
curl_easy_setopt(ps->recv_endpoint, CURLOPT_READFUNCTION, curl_send_cb);
curl_easy_setopt(ps->recv_endpoint, CURLOPT_READDATA, ps);
curl_easy_setopt(ps->recv_endpoint, CURLOPT_TIMEOUT, (long) timeout.value);
curl_easy_setopt(ps->recv_endpoint, CURLOPT_PRIVATE, ps);
curl_easy_setopt(ps->recv_endpoint, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
- curl_easy_setopt(ps->recv_endpoint, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
+ curl_easy_setopt(ps->recv_endpoint, CURLOPT_BUFFERSIZE, 2*GNUNET_SERVER_MAX_MESSAGE_SIZE);
+#if CURL_TCP_NODELAY
+ curl_easy_setopt(ps->recv_endpoint, CURLOPT_TCP_NODELAY, 1);
+#endif
- mret = curl_multi_add_handle(plugin->multi_handle, ps->recv_endpoint);
- if (mret != CURLM_OK)
+ if (fresh==GNUNET_YES)
{
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _("Connection: %X: %s failed at %s:%d: `%s'\n"),
- ps,
- "curl_multi_add_handle", __FILE__, __LINE__,
- curl_multi_strerror (mret));
- return GNUNET_SYSERR;
+ mret = curl_multi_add_handle(plugin->multi_handle, ps->recv_endpoint);
+ if (mret != CURLM_OK)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _("Connection: %X: %s failed at %s:%d: `%s'\n"),
+ ps,
+ "curl_multi_add_handle", __FILE__, __LINE__,
+ curl_multi_strerror (mret));
+ return GNUNET_SYSERR;
+ }
}
- if (curl_schedule (plugin) == GNUNET_SYSERR)
- return GNUNET_SYSERR;
-#if DEBUG_CONNECTIONS
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound not connected, initiating connection\n",ps);
-#endif
- }
+ if (plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_curl_task);
+ plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ plugin->http_curl_task = GNUNET_SCHEDULER_add_now (plugin->env->sched, &curl_perform, plugin);
}
/* waiting for receive direction */
if (CURLE_OK == curl_easy_pause(ps->send_endpoint,CURLPAUSE_CONT))
{
ps->send_active=GNUNET_YES;
+ if (plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_curl_task);
+ plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ plugin->http_curl_task = GNUNET_SCHEDULER_add_now (plugin->env->sched, &curl_perform, plugin);
return GNUNET_YES;
}
else
}
}
/* not connected, initiate connection */
- if ((ps->send_connected==GNUNET_NO) && (NULL == ps->send_endpoint))
+ if (ps->send_connected==GNUNET_NO)
{
- ps->send_endpoint = curl_easy_init();
+ int fresh = GNUNET_NO;
+ if (NULL == ps->send_endpoint)
+ {
+ ps->send_endpoint = curl_easy_init();
+ fresh = GNUNET_YES;
+ }
GNUNET_assert (ps->send_endpoint != NULL);
GNUNET_assert (NULL != ps->pending_msgs_tail);
#if DEBUG_CONNECTIONS
#if DEBUG_CURL
curl_easy_setopt(ps->send_endpoint, CURLOPT_VERBOSE, 1L);
+ curl_easy_setopt(ps->send_endpoint, CURLOPT_DEBUGFUNCTION , &curl_logger);
+ curl_easy_setopt(ps->send_endpoint, CURLOPT_DEBUGDATA , ps->send_endpoint);
+#endif
+#if BUILD_HTTPS
+ curl_easy_setopt (ps->send_endpoint, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
+ curl_easy_setopt(ps->send_endpoint, CURLOPT_SSL_VERIFYPEER, 0);
+ curl_easy_setopt(ps->send_endpoint, CURLOPT_SSL_VERIFYHOST, 0);
#endif
curl_easy_setopt(ps->send_endpoint, CURLOPT_URL, ps->url);
curl_easy_setopt(ps->send_endpoint, CURLOPT_PUT, 1L);
- curl_easy_setopt(ps->send_endpoint, CURLOPT_HEADERFUNCTION, &curl_put_header_function);
+ curl_easy_setopt(ps->send_endpoint, CURLOPT_HEADERFUNCTION, &curl_put_header_cb);
curl_easy_setopt(ps->send_endpoint, CURLOPT_WRITEHEADER, ps);
curl_easy_setopt(ps->send_endpoint, CURLOPT_READFUNCTION, curl_send_cb);
curl_easy_setopt(ps->send_endpoint, CURLOPT_READDATA, ps);
curl_easy_setopt(ps->send_endpoint, CURLOPT_TIMEOUT, (long) timeout.value);
curl_easy_setopt(ps->send_endpoint, CURLOPT_PRIVATE, ps);
curl_easy_setopt(ps->send_endpoint, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
- curl_easy_setopt(ps->send_endpoint, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
+ curl_easy_setopt(ps->send_endpoint, CURLOPT_BUFFERSIZE, 2 * GNUNET_SERVER_MAX_MESSAGE_SIZE);
+#if CURL_TCP_NODELAY
+ curl_easy_setopt(ps->send_endpoint, CURLOPT_TCP_NODELAY, 1);
+#endif
- mret = curl_multi_add_handle(plugin->multi_handle, ps->send_endpoint);
- if (mret != CURLM_OK)
+ if (fresh==GNUNET_YES)
{
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _("Connection: %X: %s failed at %s:%d: `%s'\n"),
- ps,
- "curl_multi_add_handle", __FILE__, __LINE__,
- curl_multi_strerror (mret));
- return GNUNET_SYSERR;
+ mret = curl_multi_add_handle(plugin->multi_handle, ps->send_endpoint);
+ if (mret != CURLM_OK)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _("Connection: %X: %s failed at %s:%d: `%s'\n"),
+ ps,
+ "curl_multi_add_handle", __FILE__, __LINE__,
+ curl_multi_strerror (mret));
+ return GNUNET_SYSERR;
+ }
}
}
- if (curl_schedule (plugin) == GNUNET_SYSERR)
- return GNUNET_SYSERR;
+ if (plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
+ {
+ GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_curl_task);
+ plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
+ }
+ plugin->http_curl_task = GNUNET_SCHEDULER_add_now (plugin->env->sched, &curl_perform, plugin);
return GNUNET_YES;
}
if (ps->direction == INBOUND)
return GNUNET_SYSERR;
}
-static void curl_perform (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
+/**
+ * select best session to transmit data to peer
+ *
+ * @param cls closure
+ * @param pc peer context of target peer
+ * @param addr address of target peer
+ * @param addrlen address length
+ * @param force_address does transport service enforce address?
+ * @param session session passed by transport service
+ * @return selected session
+ *
+ */
+static struct Session * send_select_session (struct HTTP_PeerContext *pc, const void * addr, size_t addrlen, int force_address, struct Session * session)
{
- struct Plugin *plugin = cls;
- static unsigned int handles_last_run;
- int running;
- struct CURLMsg *msg;
- CURLMcode mret;
- struct Session *ps = NULL;
- struct HTTP_PeerContext *pc = NULL;
- struct HTTP_Message * cur_msg = NULL;
- long http_result;
-
- GNUNET_assert(cls !=NULL);
+ struct Session * tmp = NULL;
+ int addr_given = GNUNET_NO;
- plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
- if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
- return;
+ if ((addr!=NULL) && (addrlen>0))
+ addr_given = GNUNET_YES;
- do
- {
- running = 0;
- mret = curl_multi_perform (plugin->multi_handle, &running);
- if ((running < handles_last_run) && (running>0))
- {
- do
- {
-
- msg = curl_multi_info_read (plugin->multi_handle, &running);
- if (running == 0)
- break;
- /* get session for affected curl handle */
- GNUNET_assert ( msg->easy_handle != NULL );
- curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, (char *) &ps);
- GNUNET_assert ( ps != NULL );
- pc = ps->peercontext;
- GNUNET_assert ( pc != NULL );
- switch (msg->msg)
- {
-
- case CURLMSG_DONE:
- if ( (msg->data.result != CURLE_OK) &&
- (msg->data.result != CURLE_GOT_NOTHING) )
- {
- /* sending msg failed*/
- if (msg->easy_handle == ps->send_endpoint)
- {
-#if DEBUG_CONNECTIONS
- GNUNET_log(GNUNET_ERROR_TYPE_INFO,
- _("Connection %X: HTTP PUT to peer `%s' (`%s') failed: `%s' `%s'\n"),
- ps,
- GNUNET_i2s(&pc->identity),
- http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
- "curl_multi_perform",
- curl_easy_strerror (msg->data.result));
-#endif
- ps->send_connected = GNUNET_NO;
- ps->send_active = GNUNET_NO;
- curl_multi_remove_handle(plugin->multi_handle,ps->send_endpoint);
- curl_easy_cleanup(ps->send_endpoint);
- ps->send_endpoint=NULL;
- cur_msg = ps->pending_msgs_tail;
- if (( NULL != cur_msg) && ( NULL != cur_msg->transmit_cont))
- cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_SYSERR);
- }
- /* GET connection failed */
- if (msg->easy_handle == ps->recv_endpoint)
- {
-#if DEBUG_CONNECTIONS
- GNUNET_log(GNUNET_ERROR_TYPE_INFO,
- _("Connection %X: HTTP GET to peer `%s' (`%s') failed: `%s' `%s'\n"),
- ps,
- GNUNET_i2s(&pc->identity),
- http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
- "curl_multi_perform",
- curl_easy_strerror (msg->data.result));
-#endif
- ps->recv_connected = GNUNET_NO;
- ps->recv_active = GNUNET_NO;
- curl_multi_remove_handle(plugin->multi_handle,ps->recv_endpoint);
- curl_easy_cleanup(ps->recv_endpoint);
- ps->recv_endpoint=NULL;
- }
- }
- else
- {
- if (msg->easy_handle == ps->send_endpoint)
- {
- GNUNET_assert (CURLE_OK == curl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &http_result));
-#if DEBUG_CONNECTIONS
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Connection %X: HTTP PUT connection to peer `%s' (`%s') was closed with HTTP code %u\n",
- ps,
- GNUNET_i2s(&pc->identity),
- http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
- http_result);
+ if (force_address == GNUNET_YES)
+ {
+ /* check session given as argument */
+ if ((session != NULL) && (addr_given == GNUNET_YES))
+ {
+ if (0 == memcmp(session->addr, addr, addrlen))
+ {
+ /* connection can not be used, since it is disconnected */
+ if ((session->recv_force_disconnect==GNUNET_NO) && (session->send_force_disconnect==GNUNET_NO))
+ {
+#if DEBUG_SESSION_SELECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using session passed by transport to send to forced address \n", session);
#endif
- /* Calling transmit continuation */
- cur_msg = ps->pending_msgs_tail;
- if (( NULL != cur_msg) && (NULL != cur_msg->transmit_cont))
- {
- /* HTTP 1xx : Last message before here was informational */
- if ((http_result >=100) && (http_result < 200))
- cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
- /* HTTP 2xx: successful operations */
- if ((http_result >=200) && (http_result < 300))
- cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
- /* HTTP 3xx..5xx: error */
- if ((http_result >=300) && (http_result < 600))
- cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_SYSERR);
- }
- ps->send_connected = GNUNET_NO;
- ps->send_active = GNUNET_NO;
- curl_multi_remove_handle(plugin->multi_handle,ps->send_endpoint);
- curl_easy_cleanup(ps->send_endpoint);
- ps->send_endpoint =NULL;
- }
- if (msg->easy_handle == ps->recv_endpoint)
- {
-#if DEBUG_CONNECTIONS
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Connection %X: HTTP GET connection to peer `%s' (`%s') was closed with HTTP code %u\n",
- ps,
- GNUNET_i2s(&pc->identity),
- http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
- http_result);
+ return session;
+ }
+ }
+ }
+ /* check last session used */
+ if ((pc->last_session != NULL)&& (addr_given == GNUNET_YES))
+ {
+ if (0 == memcmp(pc->last_session->addr, addr, addrlen))
+ {
+ /* connection can not be used, since it is disconnected */
+ if ((pc->last_session->recv_force_disconnect==GNUNET_NO) && (pc->last_session->send_force_disconnect==GNUNET_NO))
+ {
+#if DEBUG_SESSION_SELECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using last session used to send to forced address \n", pc->last_session);
#endif
- ps->recv_connected = GNUNET_NO;
- ps->recv_active = GNUNET_NO;
- curl_multi_remove_handle(plugin->multi_handle,ps->recv_endpoint);
- curl_easy_cleanup(ps->recv_endpoint);
- ps->recv_endpoint=NULL;
- }
- }
- if ((ps->recv_connected == GNUNET_NO) && (ps->send_connected == GNUNET_NO))
- remove_session (pc, ps, GNUNET_YES, GNUNET_SYSERR);
- break;
- default:
- break;
- }
-
- }
- while ( (running > 0) );
- }
- handles_last_run = running;
- }
- while (mret == CURLM_CALL_MULTI_PERFORM);
- curl_schedule(plugin);
-}
-
-
-/**
- * Function setting up file descriptors and scheduling task to run
- * @param ses session to send data to
- * @return GNUNET_SYSERR for hard failure, GNUNET_OK for ok
- */
-static int curl_schedule(void *cls )
-{
- struct Plugin *plugin = cls;
- fd_set rs;
- fd_set ws;
- fd_set es;
- int max;
- struct GNUNET_NETWORK_FDSet *grs;
- struct GNUNET_NETWORK_FDSet *gws;
- long to;
- CURLMcode mret;
-
- GNUNET_assert(cls !=NULL);
+ return pc->last_session;
+ }
+ }
+ }
+ /* find session in existing sessions */
+ tmp = pc->head;
+ while ((tmp!=NULL) && (addr_given == GNUNET_YES))
+ {
- /* Cancel previous scheduled task */
- if (plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_curl_task);
- plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
- }
+ if (0 == memcmp(tmp->addr, addr, addrlen))
+ {
+ /* connection can not be used, since it is disconnected */
+ if ((tmp->recv_force_disconnect==GNUNET_NO) && (tmp->send_force_disconnect==GNUNET_NO))
+ {
+#if DEBUG_SESSION_SELECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using existing session to send to forced address \n", session);
+#endif
+ return session;
+ }
- max = -1;
- FD_ZERO (&rs);
- FD_ZERO (&ws);
- FD_ZERO (&es);
- mret = curl_multi_fdset (plugin->multi_handle, &rs, &ws, &es, &max);
- if (mret != CURLM_OK)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _("%s failed at %s:%d: `%s'\n"),
- "curl_multi_fdset", __FILE__, __LINE__,
- curl_multi_strerror (mret));
- return GNUNET_SYSERR;
- }
- mret = curl_multi_timeout (plugin->multi_handle, &to);
- if (mret != CURLM_OK)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _("%s failed at %s:%d: `%s'\n"),
- "curl_multi_timeout", __FILE__, __LINE__,
- curl_multi_strerror (mret));
- return GNUNET_SYSERR;
- }
+ }
+ tmp=tmp->next;
+ }
+ /* no session to use */
+ return NULL;
+ }
+ if ((force_address == GNUNET_NO) || (force_address == GNUNET_SYSERR))
+ {
+ /* check session given as argument */
+ if (session != NULL)
+ {
+ /* connection can not be used, since it is disconnected */
+ if ((session->recv_force_disconnect==GNUNET_NO) && (session->send_force_disconnect==GNUNET_NO))
+ {
+#if DEBUG_SESSION_SELECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using session passed by transport to send not-forced address \n", session);
+#endif
+ return session;
+ }
- grs = GNUNET_NETWORK_fdset_create ();
- gws = GNUNET_NETWORK_fdset_create ();
- GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
- GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
- plugin->http_curl_task = GNUNET_SCHEDULER_add_select (plugin->env->sched,
- GNUNET_SCHEDULER_PRIORITY_DEFAULT,
- GNUNET_SCHEDULER_NO_TASK,
- GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 0),
- grs,
- gws,
- &curl_perform,
- plugin);
- GNUNET_NETWORK_fdset_destroy (gws);
- GNUNET_NETWORK_fdset_destroy (grs);
- return GNUNET_OK;
+ }
+ /* check last session used */
+ if (pc->last_session != NULL)
+ {
+ /* connection can not be used, since it is disconnected */
+ if ((pc->last_session->recv_force_disconnect==GNUNET_NO) && (pc->last_session->send_force_disconnect==GNUNET_NO))
+ {
+#if DEBUG_SESSION_SELECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using last session to send to not-forced address \n", pc->last_session);
+#endif
+ return pc->last_session;
+ }
+ }
+ /* find session in existing sessions */
+ tmp = pc->head;
+ while (tmp!=NULL)
+ {
+ /* connection can not be used, since it is disconnected */
+ if ((tmp->recv_force_disconnect==GNUNET_NO) && (tmp->send_force_disconnect==GNUNET_NO))
+ {
+#if DEBUG_SESSION_SELECTION
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using existing session to send to not-forced address \n", tmp);
+#endif
+ return tmp;
+ }
+ tmp=tmp->next;
+ }
+ return NULL;
+ }
+ return NULL;
}
-
/**
* Function that can be used by the transport service to transmit
* a message using the plugin. Note that in the case of a
* @param msgbuf_size number of bytes in 'msgbuf'
* @param priority how important is the message (most plugins will
* ignore message priority and just FIFO)
- * @param timeout how long to wait at most for the transmission (does not
+ * @param to how long to wait at most for the transmission (does not
* require plugins to discard the message after the timeout,
* just advisory for the desired delay; most plugins will ignore
* this as well)
{
struct Plugin *plugin = cls;
struct HTTP_Message *msg;
-
struct HTTP_PeerContext * pc;
struct Session * ps = NULL;
- struct Session * ps_tmp = NULL;
GNUNET_assert(cls !=NULL);
- char * force = GNUNET_malloc(40);
+#if DEBUG_HTTP
+ char * force;
if (force_address == GNUNET_YES)
- strcpy(force,"forced addr.");
+ GNUNET_asprintf(&force, "forced addr.");
if (force_address == GNUNET_NO)
- strcpy(force,"any addr.");
+ GNUNET_asprintf(&force, "any addr.");
if (force_address == GNUNET_SYSERR)
- strcpy(force,"reliable bi-direc. address addr.");
+ GNUNET_asprintf(&force,"reliable bi-direc. address addr.");
+
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Transport tells me to send %u bytes to `%s' using %s (%s) and session: %X\n",
msgbuf_size,
GNUNET_i2s(target),
force,
http_plugin_address_to_string(NULL, addr, addrlen),
session);
+
GNUNET_free(force);
+#endif
pc = GNUNET_CONTAINER_multihashmap_get (plugin->peers, &target->hashPubKey);
/* Peer unknown */
pc = GNUNET_malloc(sizeof (struct HTTP_PeerContext));
pc->plugin = plugin;
pc->session_id_counter=1;
+ pc->last_session = NULL;
memcpy(&pc->identity, target, sizeof(struct GNUNET_PeerIdentity));
GNUNET_CONTAINER_multihashmap_put(plugin->peers, &pc->identity.hashPubKey, pc, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ gettext_noop ("# HTTP peers active"),
+ 1,
+ GNUNET_NO);
}
- /* Search for existing session using the passed address */
- if ((addr!=NULL) && (addrlen != 0))
- {
- ps = get_Session(plugin, pc, addr, addrlen);
- }
- if (ps != NULL)
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Found existing connection to peer %s with given address, using %X\n", GNUNET_i2s(target), ps);
-
- /* Search for existing session using the passed session */
- if ((ps==NULL) && (force_address != GNUNET_YES))
- {
- ps_tmp = pc->head;
- while (ps_tmp!=NULL)
- {
- if ((ps_tmp==session) && (ps_tmp->recv_force_disconnect==GNUNET_NO) && (ps_tmp->send_force_disconnect==GNUNET_NO) &&
- (ps_tmp->recv_connected==GNUNET_YES) && (ps_tmp->send_connected==GNUNET_YES))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Found existing connection to peer %s with given session, using inbound session %X\n", GNUNET_i2s(target), ps_tmp);
- ps = ps_tmp;
- break;
- }
- ps_tmp=ps_tmp->next;
- }
- }
-
- /* session not existing, address not forced -> looking for other session */
- if ((ps==NULL) && (force_address != GNUNET_YES))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection, but free to choose existing, searching for existing connection to peer %s\n", GNUNET_i2s(target));
- /* Choosing different session to peer when possible */
- struct Session * tmp = pc->head;
- while (tmp!=NULL)
- {
- if ((tmp->recv_connected) && (tmp->send_connected) && (tmp->recv_force_disconnect==GNUNET_NO) && (tmp->send_force_disconnect==GNUNET_NO))
- {
- ps = tmp;
- }
- tmp = tmp->next;
- }
- if (ps != NULL)
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection to peer %s, selected connection %X\n", GNUNET_i2s(target),ps);
- else
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection to peer %s, no connection found\n", GNUNET_i2s(target));
- }
+ ps = send_select_session (pc, addr, addrlen, force_address, session);
/* session not existing, but address forced -> creating new session */
- if ((ps==NULL) || ((ps==NULL) && (force_address == GNUNET_YES)))
+ if (ps==NULL)
{
- if ((addr!=NULL) && (addrlen!=0))
- {
+ if ((addr!=NULL) && (addrlen!=0))
+ {
+ ps = GNUNET_malloc(sizeof (struct Session));
+#if DEBUG_SESSION_SELECTION
if (force_address == GNUNET_YES)
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection & forced address: creating new connection to peer %s\n", GNUNET_i2s(target));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection & forced address: creating new session %X to peer %s\n", ps, GNUNET_i2s(target));
if (force_address != GNUNET_YES)
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection: creating new connection to peer %s\n", GNUNET_i2s(target));
-
- ps = GNUNET_malloc(sizeof (struct Session));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection: creating new session %X to peer %s\n", ps, GNUNET_i2s(target));
+#endif
if ((addrlen!=0) && (addr!=NULL))
{
- ps->addr = GNUNET_malloc(addrlen);
- memcpy(ps->addr,addr,addrlen);
- ps->addrlen = addrlen;
- }
- else
- {
- ps->addr = NULL;
- ps->addrlen = 0;
+ ps->addr = GNUNET_malloc(addrlen);
+ memcpy(ps->addr,addr,addrlen);
+ ps->addrlen = addrlen;
}
- ps->direction=OUTBOUND;
- ps->recv_connected = GNUNET_NO;
- ps->recv_force_disconnect = GNUNET_NO;
- ps->send_connected = GNUNET_NO;
- ps->send_force_disconnect = GNUNET_NO;
- ps->pending_msgs_head = NULL;
- ps->pending_msgs_tail = NULL;
- ps->peercontext=pc;
- ps->session_id = pc->session_id_counter;
- pc->session_id_counter++;
- ps->url = create_url (plugin, ps->addr, ps->addrlen, ps->session_id);
- if (ps->msgtok == NULL)
- ps->msgtok = GNUNET_SERVER_mst_create (&curl_receive_mst_cb, ps);
- GNUNET_CONTAINER_DLL_insert(pc->head,pc->tail,ps);
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing session & and no address given: no way to send this message to peer `%s'!\n", GNUNET_i2s(target));
- return GNUNET_SYSERR;
+ else
+ {
+ ps->addr = NULL;
+ ps->addrlen = 0;
+ }
+ ps->direction=OUTBOUND;
+ ps->recv_connected = GNUNET_NO;
+ ps->recv_force_disconnect = GNUNET_NO;
+ ps->send_connected = GNUNET_NO;
+ ps->send_force_disconnect = GNUNET_NO;
+ ps->pending_msgs_head = NULL;
+ ps->pending_msgs_tail = NULL;
+ ps->peercontext=pc;
+ ps->session_id = pc->session_id_counter;
+ pc->session_id_counter++;
+ ps->url = create_url (plugin, ps->addr, ps->addrlen, ps->session_id);
+ if (ps->msgtok == NULL)
+ ps->msgtok = GNUNET_SERVER_mst_create (&curl_receive_mst_cb, ps);
+ GNUNET_CONTAINER_DLL_insert(pc->head,pc->tail,ps);
+ GNUNET_STATISTICS_update (plugin->env->stats,
+ gettext_noop ("# HTTP outbound sessions for peers active"),
+ 1,
+ GNUNET_NO);
+ }
+ else
+ {
+#if DEBUG_HTTP
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing session found & and no address given: no way to send this message to peer `%s'!\n", GNUNET_i2s(target));
+#endif
+ return GNUNET_SYSERR;
}
}
memcpy (msg->buf,msgbuf, msgbuf_size);
GNUNET_CONTAINER_DLL_insert(ps->pending_msgs_head,ps->pending_msgs_tail,msg);
- if (send_check_connections (plugin, ps) != GNUNET_SYSERR)
- return msg->size;
- else
+ if (send_check_connections (plugin, ps) == GNUNET_SYSERR)
return GNUNET_SYSERR;
+ if (force_address != GNUNET_YES)
+ pc->last_session = ps;
+
+ if (pc->last_session==NULL)
+ pc->last_session = ps;
+ return msg->size;
}
asc (asc_cls, NULL);
return;
}
- res = GNUNET_asprintf(&ret,"http://%s:%u/",address,port);
+ res = GNUNET_asprintf(&ret,"%s://%s:%u/", PROTOCOL_PREFIX, address, port);
GNUNET_free (address);
GNUNET_assert(res != 0);
-
asc (asc_cls, ret);
+ GNUNET_free_non_null (ret);
}
return ret;
}
-/**
- * Add the IP of our network interface to the list of
- * our external IP addresses.
- *
- * @param cls the 'struct Plugin*'
- * @param name name of the interface
- * @param isDefault do we think this may be our default interface
- * @param addr address of the interface
- * @param addrlen number of bytes in addr
- * @return GNUNET_OK to continue iterating
- */
-static int
-process_interfaces (void *cls,
- const char *name,
- int isDefault,
- const struct sockaddr *addr, socklen_t addrlen)
-{
- struct Plugin *plugin = cls;
- struct IPv4HttpAddress * t4;
- struct IPv6HttpAddress * t6;
- int af;
-
- GNUNET_assert(cls !=NULL);
- af = addr->sa_family;
- if (af == AF_INET)
- {
- t4 = GNUNET_malloc(sizeof(struct IPv4HttpAddress));
- /* Not skipping loopback addresses
- if (INADDR_LOOPBACK == ntohl(((struct sockaddr_in *) addr)->sin_addr.s_addr))
- {
-
- return GNUNET_OK;
- }
- */
- t4->ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
- t4->u_port = htons (plugin->port_inbound);
- plugin->env->notify_address(plugin->env->cls,"http",t4, sizeof (struct IPv4HttpAddress), GNUNET_TIME_UNIT_FOREVER_REL);
-
- }
- else if (af == AF_INET6)
- {
- t6 = GNUNET_malloc(sizeof(struct IPv6HttpAddress));
- if (IN6_IS_ADDR_LINKLOCAL (&((struct sockaddr_in6 *) addr)->sin6_addr))
- {
- /* skip link local addresses */
- return GNUNET_OK;
- }
- /* Not skipping loopback addresses
- if (IN6_IS_ADDR_LOOPBACK (&((struct sockaddr_in6 *) addr)->sin6_addr))
- {
-
- return GNUNET_OK;
- }
- */
- memcpy (&t6->ipv6_addr,
- &((struct sockaddr_in6 *) addr)->sin6_addr,
- sizeof (struct in6_addr));
- t6->u6_port = htons (plugin->port_inbound);
- plugin->env->notify_address(plugin->env->cls,"http",t6,sizeof (struct IPv6HttpAddress) , GNUNET_TIME_UNIT_FOREVER_REL);
- }
- return GNUNET_NO;
- return GNUNET_OK;
-}
-
-int remove_peer_context_Iterator (void *cls, const GNUNET_HashCode *key, void *value)
-{
- struct Plugin *plugin = cls;
- struct HTTP_PeerContext * pc = value;
- struct Session * ps = pc->head;
- struct Session * tmp = NULL;
- struct HTTP_Message * msg = NULL;
- struct HTTP_Message * msg_tmp = NULL;
-
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Freeing context for peer `%s'\n",GNUNET_i2s(&pc->identity));
-
- while (ps!=NULL)
- {
- plugin->env->session_end(plugin, &pc->identity, ps);
- tmp = ps->next;
-
- GNUNET_free_non_null (ps->addr);
- GNUNET_free(ps->url);
- if (ps->msgtok != NULL)
- GNUNET_SERVER_mst_destroy (ps->msgtok);
-
- msg = ps->pending_msgs_head;
- while (msg!=NULL)
- {
- msg_tmp = msg->next;
- GNUNET_free(msg);
- msg = msg_tmp;
- }
- if (ps->direction==OUTBOUND)
- {
- if (ps->send_endpoint!=NULL)
- curl_easy_cleanup(ps->send_endpoint);
- if (ps->recv_endpoint!=NULL)
- curl_easy_cleanup(ps->recv_endpoint);
- }
-
- GNUNET_free(ps);
- ps=tmp;
- }
- GNUNET_free(pc);
- return GNUNET_YES;
-}
-
/**
* Exit point from the plugin.
*/
void *
-libgnunet_plugin_transport_http_done (void *cls)
+LIBGNUNET_PLUGIN_TRANSPORT_DONE (void *cls)
{
struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
struct Plugin *plugin = api->cls;
plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;
}
-
/* free all peer information */
if (plugin->peers!=NULL)
{
if (plugin->multi_handle!=NULL)
{
mret = curl_multi_cleanup(plugin->multi_handle);
+#if DEBUG_HTTP
if ( CURLM_OK != mret)
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"curl multihandle clean up failed\n");
+#endif
plugin->multi_handle = NULL;
}
curl_global_cleanup();
plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
}
+ GNUNET_free_non_null (plugin->bind4_address);
+ GNUNET_free_non_null (plugin->bind6_address);
+ GNUNET_free_non_null(plugin->bind_hostname);
+#if BUILD_HTTPS
+ GNUNET_free_non_null (plugin->crypto_init);
+ GNUNET_free_non_null (plugin->cert);
+ GNUNET_free_non_null (plugin->key);
+#endif
GNUNET_free (plugin);
GNUNET_free (api);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unload http plugin complete...\n");
+#if DEBUG_HTTP
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unload %s plugin complete...\n", PROTOCOL_PREFIX);
+#endif
return NULL;
}
+#if BUILD_HTTPS
+static char *
+load_certificate( const char * file )
+{
+ struct GNUNET_DISK_FileHandle * gn_file;
+
+ struct stat fstat;
+ char * text = NULL;
+
+ if (0!=STAT(file, &fstat))
+ return NULL;
+ text = GNUNET_malloc (fstat.st_size+1);
+ gn_file = GNUNET_DISK_file_open(file,GNUNET_DISK_OPEN_READ, GNUNET_DISK_PERM_USER_READ);
+ if (gn_file==NULL)
+ {
+ GNUNET_free(text);
+ return NULL;
+ }
+ if (GNUNET_SYSERR == GNUNET_DISK_file_read(gn_file, text, fstat.st_size))
+ {
+ GNUNET_free(text);
+ GNUNET_DISK_file_close(gn_file);
+ return NULL;
+ }
+ text[fstat.st_size] = '\0';
+ GNUNET_DISK_file_close(gn_file);
+
+ return text;
+}
+#endif
+
/**
* Entry point for the plugin.
*/
void *
-libgnunet_plugin_transport_http_init (void *cls)
+LIBGNUNET_PLUGIN_TRANSPORT_INIT (void *cls)
{
struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
struct Plugin *plugin;
struct GNUNET_TRANSPORT_PluginFunctions *api;
struct GNUNET_TIME_Relative gn_timeout;
long long unsigned int port;
+ char * component_name;
+#if BUILD_HTTPS
+ char * key_file = NULL;
+ char * cert_file = NULL;
+#endif
GNUNET_assert(cls !=NULL);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting http plugin...\n");
+#if DEBUG_HTTP
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting %s plugin...\n", PROTOCOL_PREFIX);
+#endif
+ GNUNET_asprintf(&component_name,"transport-%s",PROTOCOL_PREFIX);
plugin = GNUNET_malloc (sizeof (struct Plugin));
plugin->stats = env->stats;
plugin->env = env;
plugin->peers = NULL;
+ plugin->bind4_address = NULL;
+ plugin->use_ipv6 = GNUNET_YES;
+ plugin->use_ipv4 = GNUNET_YES;
api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
api->cls = plugin;
/* Hashing our identity to use it in URLs */
GNUNET_CRYPTO_hash_to_enc ( &(plugin->env->my_identity->hashPubKey), &plugin->my_ascii_hash_ident);
+ /* Use IPv6? */
+ if (GNUNET_CONFIGURATION_have_value (env->cfg,
+ component_name, "USE_IPv6"))
+ {
+ plugin->use_ipv6 = GNUNET_CONFIGURATION_get_value_yesno (env->cfg,
+ component_name,
+ "USE_IPv6");
+ }
+ /* Use IPv4? */
+ if (GNUNET_CONFIGURATION_have_value (env->cfg,
+ component_name, "USE_IPv4"))
+ {
+ plugin->use_ipv4 = GNUNET_CONFIGURATION_get_value_yesno (env->cfg,
+ component_name,"USE_IPv4");
+ }
/* Reading port number from config file */
if ((GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_number (env->cfg,
- "transport-http",
+ component_name,
"PORT",
&port)) ||
(port > 65535) )
{
GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
- "http",
- _
- ("Require valid port number for transport plugin `%s' in configuration!\n"),
- "transport-http");
- libgnunet_plugin_transport_http_done (api);
+ component_name,
+ _("Require valid port number for transport plugin `%s' in configuration!\n"),
+ PROTOCOL_PREFIX);
+ GNUNET_free(component_name);
+ LIBGNUNET_PLUGIN_TRANSPORT_DONE (api);
return NULL;
}
+
+ /* Reading ipv4 addresse to bind to from config file */
+ if ((plugin->use_ipv4==GNUNET_YES) && (GNUNET_CONFIGURATION_have_value (env->cfg,
+ component_name, "BINDTO4")))
+ {
+ GNUNET_break (GNUNET_OK ==
+ GNUNET_CONFIGURATION_get_value_string (env->cfg,
+ component_name,
+ "BINDTO4",
+ &plugin->bind_hostname));
+ plugin->bind4_address = GNUNET_malloc(sizeof(struct sockaddr_in));
+ plugin->bind4_address->sin_family = AF_INET;
+ plugin->bind4_address->sin_port = htons (port);
+
+ if (inet_pton(AF_INET,plugin->bind_hostname, &plugin->bind4_address->sin_addr)<=0)
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
+ component_name,
+ _("Misconfigured address to bind to in configuration!\n"));
+ GNUNET_free(plugin->bind4_address);
+ GNUNET_free(plugin->bind_hostname);
+ plugin->bind_hostname = NULL;
+ plugin->bind4_address = NULL;
+ }
+ }
+
+ /* Reading ipv4 addresse to bind to from config file */
+ if ((plugin->use_ipv6==GNUNET_YES) && (GNUNET_CONFIGURATION_have_value (env->cfg,
+ component_name, "BINDTO6")))
+ {
+ if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (env->cfg,
+ component_name,
+ "BINDTO6",
+ &plugin->bind_hostname))
+ {
+ plugin->bind6_address = GNUNET_malloc(sizeof(struct sockaddr_in6));
+ plugin->bind6_address->sin6_family = AF_INET6;
+ plugin->bind6_address->sin6_port = htons (port);
+
+ if (inet_pton(AF_INET6,plugin->bind_hostname, &plugin->bind6_address->sin6_addr)<=0)
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
+ component_name,
+ _("Misconfigured address to bind to in configuration!\n"));
+ GNUNET_free(plugin->bind6_address);
+ GNUNET_free(plugin->bind_hostname);
+ plugin->bind_hostname = NULL;
+ plugin->bind6_address = NULL;
+ }
+ }
+ }
+
+#if BUILD_HTTPS
+ /* Reading HTTPS crypto related configuration */
+ /* Get crypto init string from config */
+ if (GNUNET_CONFIGURATION_have_value (env->cfg,
+ "transport-https", "CRYPTO_INIT"))
+ {
+ GNUNET_CONFIGURATION_get_value_string (env->cfg,
+ "transport-https",
+ "CRYPTO_INIT",
+ &plugin->crypto_init);
+ }
+ else
+ {
+ GNUNET_asprintf(&plugin->crypto_init,"NORMAL");
+ }
+
+/* Get private key file from config */
+ if (GNUNET_CONFIGURATION_have_value (env->cfg,
+ "transport-https", "KEY_FILE"))
+ {
+ GNUNET_CONFIGURATION_get_value_string (env->cfg,
+ "transport-https",
+ "KEY_FILE",
+ &key_file);
+ }
+ if (key_file==NULL)
+ GNUNET_asprintf(&key_file,"https.key");
+
+/* Get private key file from config */
+ if (GNUNET_CONFIGURATION_have_value (env->cfg,"transport-https", "CERT_FILE"))
+ {
+ GNUNET_CONFIGURATION_get_value_string (env->cfg,
+ "transport-https",
+ "CERT_FILE",
+ &cert_file);
+ }
+ if (cert_file==NULL)
+ GNUNET_asprintf(&cert_file,"https.cert");
+
+ /* read key & certificates from file */
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Loading TLS certificate `%s' `%s'\n", key_file, cert_file);
+
+ plugin->key = load_certificate( key_file );
+ plugin->cert = load_certificate( cert_file );
+
+ if ((plugin->key==NULL) || (plugin->cert==NULL))
+ {
+ char * cmd;
+ int ret = 0;
+ GNUNET_asprintf(&cmd,"gnunet-transport-certificate-creation %s %s", key_file, cert_file);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "No usable TLS certificate found, creating certificate \n");
+ ret = system(cmd);
+
+ if (ret != 0)
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
+ "https",
+ _("Could not create a new TLS certificate, shell script `%s' failed!\n"),cmd,
+ "transport-https");
+ GNUNET_free (key_file);
+ GNUNET_free (cert_file);
+ GNUNET_free (component_name);
+
+ LIBGNUNET_PLUGIN_TRANSPORT_DONE(api);
+ GNUNET_free (cmd);
+ return NULL;
+ }
+
+ GNUNET_free (cmd);
+
+ plugin->key = load_certificate( key_file );
+ plugin->cert = load_certificate( cert_file );
+
+ if ((plugin->key==NULL) || (plugin->cert==NULL))
+ {
+ GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
+ "https",
+ _("No usable TLS certificate found and creating one failed! \n"),
+ "transport-https");
+ GNUNET_free (key_file);
+ GNUNET_free (cert_file);
+ GNUNET_free (component_name);
+
+ LIBGNUNET_PLUGIN_TRANSPORT_DONE(api);
+ return NULL;
+ }
+ }
+ GNUNET_free (key_file);
+ GNUNET_free (cert_file);
+
+ GNUNET_assert((plugin->key!=NULL) && (plugin->cert!=NULL));
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "TLS certificate loaded\n");
+#endif
+
GNUNET_assert ((port > 0) && (port <= 65535));
plugin->port_inbound = port;
gn_timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
unsigned int timeout = (gn_timeout.value) / 1000;
- if ((plugin->http_server_daemon_v4 == NULL) && (plugin->http_server_daemon_v6 == NULL) && (port != 0))
- {
+ if ((plugin->http_server_daemon_v6 == NULL) && (plugin->use_ipv6 == GNUNET_YES) && (port != 0))
+ {
+ struct sockaddr * tmp = (struct sockaddr *) plugin->bind6_address;
plugin->http_server_daemon_v6 = MHD_start_daemon (
-#if DEBUG_HTTP
+#if DEBUG_MHD
MHD_USE_DEBUG |
+#endif
+#if BUILD_HTTPS
+ MHD_USE_SSL |
#endif
MHD_USE_IPv6,
port,
&mhd_accept_cb,
plugin , &mdh_access_cb, plugin,
+ MHD_OPTION_SOCK_ADDR, tmp,
MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 32,
- MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 6,
+ //MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 6,
+#if BUILD_HTTPS
+ MHD_OPTION_HTTPS_PRIORITIES, plugin->crypto_init,
+ MHD_OPTION_HTTPS_MEM_KEY, plugin->key,
+ MHD_OPTION_HTTPS_MEM_CERT, plugin->cert,
+#endif
MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) timeout,
- MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
+ MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (2 * GNUNET_SERVER_MAX_MESSAGE_SIZE),
MHD_OPTION_NOTIFY_COMPLETED, &mhd_termination_cb, NULL,
+ MHD_OPTION_EXTERNAL_LOGGER, mhd_logger, plugin->mhd_log,
MHD_OPTION_END);
- plugin->http_server_daemon_v4 = MHD_start_daemon (
-#if DEBUG_HTTP
+ }
+ if ((plugin->http_server_daemon_v4 == NULL) && (plugin->use_ipv4 == GNUNET_YES) && (port != 0))
+ {
+ plugin->http_server_daemon_v4 = MHD_start_daemon (
+#if DEBUG_MHD
MHD_USE_DEBUG |
+#endif
+#if BUILD_HTTPS
+ MHD_USE_SSL |
#endif
MHD_NO_FLAG,
port,
&mhd_accept_cb,
plugin , &mdh_access_cb, plugin,
+ MHD_OPTION_SOCK_ADDR, (struct sockaddr_in *)plugin->bind4_address,
MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 32,
- MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 6,
+ //MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 6,
+#if BUILD_HTTPS
+ MHD_OPTION_HTTPS_PRIORITIES, plugin->crypto_init,
+ MHD_OPTION_HTTPS_MEM_KEY, plugin->key,
+ MHD_OPTION_HTTPS_MEM_CERT, plugin->cert,
+#endif
MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) timeout,
- MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
+ MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (2 * GNUNET_SERVER_MAX_MESSAGE_SIZE),
MHD_OPTION_NOTIFY_COMPLETED, &mhd_termination_cb, NULL,
+ MHD_OPTION_EXTERNAL_LOGGER, mhd_logger, plugin->mhd_log,
MHD_OPTION_END);
- }
+ }
if (plugin->http_server_daemon_v4 != NULL)
plugin->http_server_task_v4 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v4);
if (plugin->http_server_daemon_v6 != NULL)
plugin->http_server_task_v6 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v6);
+
if (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 on port %u\n",port);
- else if (plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 and IPv6 on port %u\n",port);
+ {
+#if DEBUG_HTTP
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 bound to %s with port %u\n",(plugin->bind_hostname!=NULL) ? plugin->bind_hostname : "every address",port);
+#endif
+ }
+ else if ((plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK) && (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK))
+ {
+#if DEBUG_HTTP
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv6 bound to %s with port %u\n",(plugin->bind_hostname!=NULL) ? plugin->bind_hostname : "every address", port);
+#endif
+ }
+ else if ((plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK) && (plugin->http_server_task_v4 == GNUNET_SCHEDULER_NO_TASK))
+ {
+#if DEBUG_HTTP
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 and IPv6 bound to %s with port %u\n",(plugin->bind_hostname!=NULL) ? plugin->bind_hostname : "every address", port);
+#endif
+ }
else
{
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No MHD was started, transport plugin not functional!\n");
- libgnunet_plugin_transport_http_done (api);
+ char * tmp = NULL;
+ if ((plugin->use_ipv6 == GNUNET_YES) && (plugin->use_ipv4 == GNUNET_YES))
+ GNUNET_asprintf(&tmp,"with IPv4 and IPv6 enabled");
+ if ((plugin->use_ipv6 == GNUNET_NO) && (plugin->use_ipv4 == GNUNET_YES))
+ GNUNET_asprintf(&tmp,"with IPv4 enabled");
+ if ((plugin->use_ipv6 == GNUNET_YES) && (plugin->use_ipv4 == GNUNET_NO))
+ GNUNET_asprintf(&tmp,"with IPv6 enabled");
+ if ((plugin->use_ipv6 == GNUNET_NO) && (plugin->use_ipv4 == GNUNET_NO))
+ GNUNET_asprintf(&tmp,"with NO IP PROTOCOL enabled");
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,"HTTP Server with %s could not be started on port %u! %s plugin failed!\n",tmp, port, PROTOCOL_PREFIX);
+ GNUNET_free (tmp);
+ GNUNET_free (component_name);
+ LIBGNUNET_PLUGIN_TRANSPORT_DONE (api);
return NULL;
}
if ( NULL == plugin->multi_handle )
{
GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
- "http",
- _("Could not initialize curl multi handle, failed to start http plugin!\n"),
- "transport-http");
- libgnunet_plugin_transport_http_done (api);
+ component_name,
+ _("Could not initialize curl multi handle, failed to start %s plugin!\n"),
+ PROTOCOL_PREFIX);
+ GNUNET_free(component_name);
+ LIBGNUNET_PLUGIN_TRANSPORT_DONE (api);
return NULL;
}
plugin->peers = GNUNET_CONTAINER_multihashmap_create (10);
GNUNET_OS_network_interfaces_list (&process_interfaces, plugin);
+ GNUNET_free(component_name);
return api;
}
projects / oweals / gnunet.git / blobdiff