2 This file is part of GNUnet.
3 (C) 2010,2011 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
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11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
22 * @file transport/gnunet-service-transport.c
24 * @author Christian Grothoff
27 #include "gnunet_util_lib.h"
28 #include "gnunet_hello_lib.h"
29 #include "gnunet_statistics_service.h"
30 #include "gnunet_transport_service.h"
31 #include "gnunet_peerinfo_service.h"
32 #include "gnunet_ats_service.h"
33 #include "gnunet-service-transport.h"
34 #include "gnunet-service-transport_blacklist.h"
35 #include "gnunet-service-transport_clients.h"
36 #include "gnunet-service-transport_hello.h"
37 #include "gnunet-service-transport_neighbours.h"
38 #include "gnunet-service-transport_plugins.h"
39 #include "gnunet-service-transport_validation.h"
40 #include "gnunet-service-transport_manipulation.h"
41 #include "transport.h"
48 struct GNUNET_STATISTICS_Handle *GST_stats;
51 * Configuration handle.
53 const struct GNUNET_CONFIGURATION_Handle *GST_cfg;
56 * Configuration handle.
58 struct GNUNET_PeerIdentity GST_my_identity;
61 * Handle to peerinfo service.
63 struct GNUNET_PEERINFO_Handle *GST_peerinfo;
66 * Handle to our service's server.
68 static struct GNUNET_SERVER_Handle *GST_server;
73 struct GNUNET_CRYPTO_EccPublicKeyBinaryEncoded GST_my_public_key;
78 struct GNUNET_CRYPTO_EccPrivateKey *GST_my_private_key;
83 struct GNUNET_ATS_SchedulingHandle *GST_ats;
86 * DEBUGGING connection counter
88 static int connections;
91 * Hello address expiration
93 struct GNUNET_TIME_Relative hello_expiration;
97 * Transmit our HELLO message to the given (connected) neighbour.
99 * @param cls the 'HELLO' message
100 * @param target a connected neighbour
101 * @param address the address
102 * @param bandwidth_in inbound quota in NBO
103 * @param bandwidth_out outbound quota in NBO
106 transmit_our_hello (void *cls, const struct GNUNET_PeerIdentity *target,
107 const struct GNUNET_HELLO_Address *address,
108 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in,
109 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out)
111 const struct GNUNET_MessageHeader *hello = cls;
113 GST_neighbours_send (target, (const char *) hello, ntohs (hello->size),
114 hello_expiration, NULL, NULL);
119 * My HELLO has changed. Tell everyone who should know.
122 * @param hello new HELLO
125 process_hello_update (void *cls, const struct GNUNET_MessageHeader *hello)
127 GST_clients_broadcast (hello, GNUNET_NO);
128 GST_neighbours_iterate (&transmit_our_hello, (void *) hello);
134 * We received some payload. Prepare to pass it on to our clients.
136 * @param peer (claimed) identity of the other peer
137 * @param address the address
138 * @param session session used
139 * @param message the message to process
140 * @return how long the plugin should wait until receiving more data
142 static struct GNUNET_TIME_Relative
143 process_payload (const struct GNUNET_PeerIdentity *peer,
144 const struct GNUNET_HELLO_Address *address,
145 struct Session *session,
146 const struct GNUNET_MessageHeader *message)
148 struct GNUNET_TIME_Relative ret;
150 struct InboundMessage *im;
151 size_t msg_size = ntohs (message->size);
153 sizeof (struct InboundMessage) + msg_size;
154 char buf[size] GNUNET_ALIGN;
156 ret = GNUNET_TIME_UNIT_ZERO;
157 do_forward = GNUNET_SYSERR;
158 ret = GST_neighbours_calculate_receive_delay (peer, msg_size, &do_forward);
160 if (!GST_neighbours_test_connected (peer))
163 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
164 "Discarded %u bytes type %u payload from peer `%s'\n", msg_size,
165 ntohs (message->type), GNUNET_i2s (peer));
167 GNUNET_STATISTICS_update (GST_stats,
169 ("# bytes payload discarded due to not connected peer "),
170 msg_size, GNUNET_NO);
174 if (do_forward != GNUNET_YES)
176 im = (struct InboundMessage *) buf;
177 im->header.size = htons (size);
178 im->header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_RECV);
180 memcpy (&im[1], message, ntohs (message->size));
182 //GNUNET_ATS_address_add (GST_ats, address, session, NULL, 0);
183 GST_clients_broadcast (&im->header, GNUNET_YES);
190 * Function called by the transport for each received message.
191 * This function should also be called with "NULL" for the
192 * message to signal that the other peer disconnected.
194 * @param cls closure, const char* with the name of the plugin we received the message from
195 * @param peer (claimed) identity of the other peer
196 * @param message the message, NULL if we only care about
197 * learning about the delay until we should receive again -- FIXME!
198 * @param session identifier used for this session (NULL for plugins
199 * that do not offer bi-directional communication to the sender
200 * using the same "connection")
201 * @param sender_address binary address of the sender (if we established the
202 * connection or are otherwise sure of it; should be NULL
203 * for inbound TCP/UDP connections since it it not clear
204 * that we could establish ourselves a connection to that
205 * IP address and get the same system)
206 * @param sender_address_len number of bytes in sender_address
207 * @return how long the plugin should wait until receiving more data
208 * (plugins that do not support this, can ignore the return value)
210 struct GNUNET_TIME_Relative
211 GST_receive_callback (void *cls, const struct GNUNET_PeerIdentity *peer,
212 const struct GNUNET_MessageHeader *message,
213 struct Session *session,
214 const char *sender_address,
215 uint16_t sender_address_len)
217 const char *plugin_name = cls;
218 struct GNUNET_TIME_Relative ret;
219 struct GNUNET_HELLO_Address address;
222 address.peer = *peer;
223 address.address = sender_address;
224 address.address_length = sender_address_len;
225 address.transport_name = plugin_name;
226 ret = GNUNET_TIME_UNIT_ZERO;
229 type = ntohs (message->type);
230 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received Message with type %u from peer `%s'\n", type, GNUNET_i2s (peer));
232 GNUNET_STATISTICS_update (GST_stats,
234 ("# bytes total received"),
235 ntohs (message->size), GNUNET_NO);
239 case GNUNET_MESSAGE_TYPE_HELLO_LEGACY:
240 /* Legacy HELLO message, discard */
242 case GNUNET_MESSAGE_TYPE_HELLO:
243 GST_validation_handle_hello (message);
245 case GNUNET_MESSAGE_TYPE_TRANSPORT_PING:
246 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
247 "Processing `%s' from `%s'\n", "PING",
249 NULL) ? GST_plugins_a2s (&address) : "<inbound>");
250 GST_validation_handle_ping (peer, message, &address, session);
252 case GNUNET_MESSAGE_TYPE_TRANSPORT_PONG:
253 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
254 "Processing `%s' from `%s'\n", "PONG",
256 NULL) ? GST_plugins_a2s (&address) : "<inbound>");
257 GST_validation_handle_pong (peer, message);
259 case GNUNET_MESSAGE_TYPE_TRANSPORT_SESSION_CONNECT:
260 GST_neighbours_handle_connect (message, peer, &address, session);
262 case GNUNET_MESSAGE_TYPE_TRANSPORT_SESSION_CONNECT_ACK:
263 GST_neighbours_handle_connect_ack (message, peer, &address, session);
265 case GNUNET_MESSAGE_TYPE_TRANSPORT_SESSION_ACK:
266 GST_neighbours_handle_session_ack (message, peer, &address, session);
268 case GNUNET_MESSAGE_TYPE_TRANSPORT_SESSION_DISCONNECT:
269 GST_neighbours_handle_disconnect_message (peer, message);
271 case GNUNET_MESSAGE_TYPE_TRANSPORT_SESSION_KEEPALIVE:
272 GST_neighbours_keepalive (peer);
274 case GNUNET_MESSAGE_TYPE_TRANSPORT_SESSION_KEEPALIVE_RESPONSE:
275 GST_neighbours_keepalive_response (peer);
278 /* should be payload */
279 GNUNET_STATISTICS_update (GST_stats,
281 ("# bytes payload received"),
282 ntohs (message->size), GNUNET_NO);
283 ret = process_payload (peer, &address, session, message);
287 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
288 "Allowing receive from peer %s to continue in %llu ms\n",
289 GNUNET_i2s (peer), (unsigned long long) ret.rel_value);
295 * Function that will be called for each address the transport
296 * is aware that it might be reachable under. Update our HELLO.
298 * @param cls name of the plugin (const char*)
299 * @param add_remove should the address added (YES) or removed (NO) from the
300 * set of valid addresses?
301 * @param addr one of the addresses of the host
302 * the specific address format depends on the transport
303 * @param addrlen length of the address
304 * @param dest_plugin destination plugin to use this address with
307 plugin_env_address_change_notification (void *cls, int add_remove,
308 const void *addr, size_t addrlen,
309 const char *dest_plugin)
311 struct GNUNET_HELLO_Address address;
313 address.peer = GST_my_identity;
314 address.transport_name = dest_plugin;
315 address.address = addr;
316 address.address_length = addrlen;
317 GST_hello_modify_addresses (add_remove, &address);
322 * Function that will be called whenever the plugin internally
323 * cleans up a session pointer and hence the service needs to
324 * discard all of those sessions as well. Plugins that do not
325 * use sessions can simply omit calling this function and always
326 * use NULL wherever a session pointer is needed. This function
327 * should be called BEFORE a potential "TransmitContinuation"
328 * from the "TransmitFunction".
331 * @param peer which peer was the session for
332 * @param session which session is being destoyed
335 plugin_env_session_end (void *cls, const struct GNUNET_PeerIdentity *peer,
336 struct Session *session)
338 const char *transport_name = cls;
339 struct GNUNET_HELLO_Address address;
341 GNUNET_assert (strlen (transport_name) > 0);
342 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Session %p to peer `%s' ended \n",
343 session, GNUNET_i2s (peer));
345 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG | GNUNET_ERROR_TYPE_BULK,
347 "Telling ATS to destroy session %p from peer %s\n",
348 session, GNUNET_i2s (peer));
349 address.peer = *peer;
350 address.address = NULL;
351 address.address_length = 0;
352 address.transport_name = transport_name;
353 GST_neighbours_session_terminated (peer, session);
355 /* Tell ATS that session has ended */
356 GNUNET_ATS_address_destroyed (GST_ats, &address, session);
361 * Function that will be called to figure if an address is an loopback,
362 * LAN, WAN etc. address
365 * @param addr binary address
366 * @param addrlen length of the address
367 * @return ATS Information containing the network type
369 static struct GNUNET_ATS_Information
370 plugin_env_address_to_type (void *cls,
371 const struct sockaddr *addr,
374 struct GNUNET_ATS_Information ats;
375 ats.type = htonl (GNUNET_ATS_NETWORK_TYPE);
376 ats.value = htonl (GNUNET_ATS_NET_UNSPECIFIED);
382 if (((addr->sa_family != AF_INET) && (addrlen != sizeof (struct sockaddr_in))) &&
383 ((addr->sa_family != AF_INET6) && (addrlen != sizeof (struct sockaddr_in6))) &&
384 (addr->sa_family != AF_UNIX))
386 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Malformed address with length %u `%s'\n",
388 GNUNET_a2s(addr, addrlen));
392 return GNUNET_ATS_address_get_type(GST_ats, addr, addrlen);
397 * Notify ATS about the new address including the network this address is
400 * @param address the address
401 * @param session the session
404 GST_ats_add_address (struct GNUNET_HELLO_Address *address,
407 struct GNUNET_TRANSPORT_PluginFunctions *papi;
408 struct GNUNET_ATS_Information ats;
411 /* valid new address, let ATS know! */
412 if (NULL == address->transport_name)
417 if (NULL == (papi = GST_plugins_find (address->transport_name)))
419 /* we don't have the plugin for this address */
424 net = papi->get_network (NULL, session);
425 ats.type = htonl (GNUNET_ATS_NETWORK_TYPE);
426 ats.value = htonl(net);
427 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Notifying ATS about new address `%s' in network %s\n",
428 (0 == address->address_length) ? "<inbound>" : GST_plugins_a2s (address),
429 GNUNET_ATS_print_network_type(net));
430 GNUNET_ATS_address_add (GST_ats,
431 address, session, &ats, 1);
436 * Notify ATS about property changes to an address
438 * @param peer the peer
439 * @param address the address
440 * @param session the session
441 * @param ats performance information
442 * @param ats_count number of elements in ats
445 GST_ats_update_metrics (const struct GNUNET_PeerIdentity *peer,
446 const struct GNUNET_HELLO_Address *address,
447 struct Session *session,
448 const struct GNUNET_ATS_Information *ats,
451 struct GNUNET_ATS_Information *ats_new;
452 /* Call to manipulation to manipulate ATS information */
453 ats_new = GST_manipulation_manipulate_metrics (peer, address, session, ats, ats_count);
459 GNUNET_ATS_address_update (GST_ats, address, session, ats_new, ats_count);
460 GNUNET_free (ats_new);
465 * Function that will be called to figure if an address is an loopback,
466 * LAN, WAN etc. address
469 * @param peer the peer
470 * @param address binary address
471 * @param address_len length of the address
472 * @param session the session
473 * @param ats the ats information to update
474 * @param ats_count the number of ats elements
477 plugin_env_update_metrics (void *cls,
478 const struct GNUNET_PeerIdentity *peer,
480 uint16_t address_len,
481 struct Session *session,
482 const struct GNUNET_ATS_Information *ats,
485 struct GNUNET_HELLO_Address haddress;
486 const char *plugin_name = cls;
488 if ((NULL == ats) || (0 == ats_count))
490 GNUNET_assert (NULL != GST_ats);
492 haddress.peer = *peer;
493 haddress.address = address;
494 haddress.address_length = address_len;
495 haddress.transport_name = plugin_name;
497 GST_ats_update_metrics (peer, &haddress, session, ats, ats_count);
501 plugin_env_session_start (void *cls,
502 const struct GNUNET_PeerIdentity *peer,
505 uint16_t address_len,
506 struct Session *session,
507 const struct GNUNET_ATS_Information *ats,
531 struct GNUNET_HELLO_Address *addr;
532 addr = GNUNET_HELLO_address_allocate (peer, plugin, address, address_len);
533 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Adding peer `%s' address %s session %p\n",
534 GNUNET_i2s (peer), GST_plugins_a2s(addr), session);
535 GST_ats_add_address (addr, session);
537 GST_ats_update_metrics (peer, addr, session, ats, ats_count);
542 * Function called by ATS to notify the callee that the
543 * assigned bandwidth or address for a given peer was changed. If the
544 * callback is called with address/bandwidth assignments of zero, the
545 * ATS disconnect function will still be called once the disconnect
549 * @param address address to use (for peer given in address)
550 * @param session session to use (if available)
551 * @param bandwidth_out assigned outbound bandwidth for the connection, 0 to disconnect from peer
552 * @param bandwidth_in assigned inbound bandwidth for the connection, 0 to disconnect from peer
553 * @param ats ATS information
554 * @param ats_count number of ATS elements
557 ats_request_address_change (void *cls,
558 const struct GNUNET_HELLO_Address *address,
559 struct Session *session,
560 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
561 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in,
562 const struct GNUNET_ATS_Information *ats,
565 uint32_t bw_in = ntohl (bandwidth_in.value__);
566 uint32_t bw_out = ntohl (bandwidth_out.value__);
568 /* ATS tells me to disconnect from peer */
569 if ((bw_in == 0) && (bw_out == 0))
571 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
572 "ATS tells me to disconnect from peer `%s'\n",
573 GNUNET_i2s (&address->peer));
574 GST_neighbours_force_disconnect (&address->peer);
577 GST_neighbours_switch_to_address (&address->peer, address, session, ats,
578 ats_count, bandwidth_in,
584 * Function called to notify transport users that another
585 * peer connected to us.
588 * @param peer the peer that connected
589 * @param bandwidth_in inbound bandwidth in NBO
590 * @param bandwidth_out outbound bandwidth in NBO
593 neighbours_connect_notification (void *cls,
594 const struct GNUNET_PeerIdentity *peer,
595 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in,
596 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out)
598 size_t len = sizeof (struct ConnectInfoMessage);
599 char buf[len] GNUNET_ALIGN;
600 struct ConnectInfoMessage *connect_msg = (struct ConnectInfoMessage *) buf;
603 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
604 "We are now connected to peer `%s' and %u peers in total\n",
605 GNUNET_i2s (peer), connections);
607 connect_msg->header.size = htons (sizeof (buf));
608 connect_msg->header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT);
609 connect_msg->id = *peer;
610 connect_msg->quota_in = bandwidth_in;
611 connect_msg->quota_out = bandwidth_out;
612 GST_clients_broadcast (&connect_msg->header, GNUNET_NO);
617 * Function called to notify transport users that another
618 * peer disconnected from us.
621 * @param peer the peer that disconnected
624 neighbours_disconnect_notification (void *cls,
625 const struct GNUNET_PeerIdentity *peer)
627 struct DisconnectInfoMessage disconnect_msg;
630 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
631 "Peer `%s' disconnected and we are connected to %u peers\n",
632 GNUNET_i2s (peer), connections);
634 GST_manipulation_peer_disconnect (peer);
635 disconnect_msg.header.size = htons (sizeof (struct DisconnectInfoMessage));
636 disconnect_msg.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT);
637 disconnect_msg.reserved = htonl (0);
638 disconnect_msg.peer = *peer;
639 GST_clients_broadcast (&disconnect_msg.header, GNUNET_NO);
644 * Function called to notify transport users that a neighbour peer changed its
648 * @param peer peer this update is about (never NULL)
649 * @param address address, NULL on disconnect
652 neighbours_address_notification (void *cls,
653 const struct GNUNET_PeerIdentity *peer,
654 const struct GNUNET_HELLO_Address *address)
656 GST_clients_broadcast_address_notification (peer, address);
661 * Function called when the service shuts down. Unloads our plugins
662 * and cancels pending validations.
664 * @param cls closure, unused
665 * @param tc task context (unused)
668 shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
670 GST_neighbours_stop ();
671 GST_validation_stop ();
672 GST_plugins_unload ();
674 GNUNET_ATS_scheduling_done (GST_ats);
677 GST_blacklist_stop ();
679 GST_manipulation_stop ();
681 if (NULL != GST_peerinfo)
683 GNUNET_PEERINFO_disconnect (GST_peerinfo);
686 if (NULL != GST_stats)
688 GNUNET_STATISTICS_destroy (GST_stats, GNUNET_NO);
691 if (NULL != GST_my_private_key)
693 GNUNET_CRYPTO_ecc_key_free (GST_my_private_key);
694 GST_my_private_key = NULL;
701 * Initiate transport service.
704 * @param server the initialized server
705 * @param c configuration to use
708 run (void *cls, struct GNUNET_SERVER_Handle *server,
709 const struct GNUNET_CONFIGURATION_Handle *c)
712 struct GNUNET_CRYPTO_EccPrivateKey *pk;
713 long long unsigned int max_fd_cfg;
721 GNUNET_CONFIGURATION_get_value_filename (c, "PEER", "PRIVATE_KEY",
724 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
726 ("Transport service is lacking key configuration settings. Exiting.\n"));
727 GNUNET_SCHEDULER_shutdown ();
731 GNUNET_CONFIGURATION_get_value_time (c, "transport", "HELLO_EXPIRATION",
734 hello_expiration = GNUNET_CONSTANTS_HELLO_ADDRESS_EXPIRATION;
737 pk = GNUNET_CRYPTO_ecc_key_create_from_file (keyfile);
738 GNUNET_free (keyfile);
739 GNUNET_assert (NULL != pk);
740 GST_my_private_key = pk;
742 GST_stats = GNUNET_STATISTICS_create ("transport", GST_cfg);
743 GST_peerinfo = GNUNET_PEERINFO_connect (GST_cfg);
744 GNUNET_CRYPTO_ecc_key_get_public (GST_my_private_key, &GST_my_public_key);
745 GNUNET_CRYPTO_hash (&GST_my_public_key, sizeof (GST_my_public_key),
746 &GST_my_identity.hashPubKey);
747 GNUNET_assert (NULL != GST_my_private_key);
749 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_task,
751 if (NULL == GST_peerinfo)
753 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
754 _("Could not access PEERINFO service. Exiting.\n"));
755 GNUNET_SCHEDULER_shutdown ();
763 struct rlimit r_file;
764 if (0 == getrlimit (RLIMIT_NOFILE, &r_file))
766 max_fd_rlimit = r_file.rlim_cur;
767 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
768 "Maximum number of open files was: %u/%u\n", r_file.rlim_cur,
771 max_fd_rlimit = (9 * max_fd_rlimit) / 10; /* Keep 10% for rest of transport */
773 GNUNET_CONFIGURATION_get_value_number (GST_cfg, "transport", "MAX_FD", &max_fd_cfg);
775 if (max_fd_cfg > max_fd_rlimit)
778 max_fd = max_fd_rlimit;
779 if (max_fd < DEFAULT_MAX_FDS)
780 max_fd = DEFAULT_MAX_FDS;
782 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
783 "Limiting number of sockets to %u: validation %u, neighbors: %u\n",
784 max_fd, (max_fd / 3) , (max_fd / 3) * 2);
786 friend_only = GNUNET_CONFIGURATION_get_value_yesno(GST_cfg, "topology","FRIENDS-ONLY");
787 if (GNUNET_SYSERR == friend_only)
788 friend_only = GNUNET_NO; /* According to topology defaults */
789 /* start subsystems */
790 GST_hello_start (friend_only, &process_hello_update, NULL);
791 GNUNET_assert (NULL != GST_hello_get());
792 GST_blacklist_start (GST_server, GST_cfg, &GST_my_identity);
794 GNUNET_ATS_scheduling_init (GST_cfg, &ats_request_address_change, NULL);
795 GST_manipulation_init (GST_cfg);
796 GST_plugins_load (&GST_manipulation_recv,
797 &plugin_env_address_change_notification,
798 &plugin_env_session_start,
799 &plugin_env_session_end,
800 &plugin_env_address_to_type,
801 &plugin_env_update_metrics);
802 GST_neighbours_start (NULL,
803 &neighbours_connect_notification,
804 &neighbours_disconnect_notification,
805 &neighbours_address_notification,
807 GST_clients_start (GST_server);
808 GST_validation_start ((max_fd / 3));
813 * The main function for the transport service.
815 * @param argc number of arguments from the command line
816 * @param argv command line arguments
817 * @return 0 ok, 1 on error
820 main (int argc, char *const *argv)
823 GNUNET_SERVICE_run (argc, argv, "transport",
824 GNUNET_SERVICE_OPTION_NONE, &run, NULL)) ? 0 : 1;
827 /* end of file gnunet-service-transport.c */