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3 Copyright (C) 2009 GNUnet e.V.
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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
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
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17 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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22 * @file multicast/gnunet-service-multicast.c
23 * @brief program that does multicast
24 * @author Christian Grothoff
27 #include "gnunet_util_lib.h"
28 #include "gnunet_signatures.h"
29 #include "gnunet_applications.h"
30 #include "gnunet_statistics_service.h"
31 #include "gnunet_cadet_service.h"
32 #include "gnunet_multicast_service.h"
33 #include "multicast.h"
36 * Handle to our current configuration.
38 static const struct GNUNET_CONFIGURATION_Handle *cfg;
43 static struct GNUNET_SERVICE_Handle *service;
48 static struct GNUNET_CADET_Handle *cadet;
51 * Identity of this peer.
53 static struct GNUNET_PeerIdentity this_peer;
56 * Handle to the statistics service.
58 static struct GNUNET_STATISTICS_Handle *stats;
61 * All connected origin clients.
62 * Group's pub_key_hash -> struct Origin * (uniq)
64 static struct GNUNET_CONTAINER_MultiHashMap *origins;
67 * All connected member clients.
68 * Group's pub_key_hash -> struct Member * (multi)
70 static struct GNUNET_CONTAINER_MultiHashMap *members;
73 * Connected member clients per group.
74 * Group's pub_key_hash -> Member's pub_key_hash (uniq) -> struct Member * (uniq)
76 static struct GNUNET_CONTAINER_MultiHashMap *group_members;
79 * Incoming CADET channels with connected children in the tree.
80 * Group's pub_key_hash -> struct Channel * (multi)
82 static struct GNUNET_CONTAINER_MultiHashMap *channels_in;
85 * Outgoing CADET channels connecting to parents in the tree.
86 * Group's pub_key_hash -> struct Channel * (multi)
88 static struct GNUNET_CONTAINER_MultiHashMap *channels_out;
91 * Incoming replay requests from CADET.
92 * Group's pub_key_hash ->
93 * H(fragment_id, message_id, fragment_offset, flags) -> struct Channel *
95 static struct GNUNET_CONTAINER_MultiHashMap *replay_req_cadet;
98 * Incoming replay requests from clients.
99 * Group's pub_key_hash ->
100 * H(fragment_id, message_id, fragment_offset, flags) -> struct GNUNET_SERVICE_Client *
102 static struct GNUNET_CONTAINER_MultiHashMap *replay_req_client;
106 * Join status of a remote peer.
116 enum ChannelDirection
124 * Context for a CADET channel.
129 * Group the channel belongs to.
131 * Only set for outgoing channels.
138 struct GNUNET_CADET_Channel *channel;
141 * CADET transmission handle.
143 struct GNUNET_CADET_TransmitHandle *tmit_handle;
146 * Public key of the target group.
148 struct GNUNET_CRYPTO_EddsaPublicKey group_pub_key;
151 * Hash of @a group_pub_key.
153 struct GNUNET_HashCode group_pub_hash;
156 * Public key of the joining member.
158 struct GNUNET_CRYPTO_EcdsaPublicKey member_pub_key;
161 * Remote peer identity.
163 struct GNUNET_PeerIdentity peer;
166 * Is the remote peer admitted to the group?
167 * @see enum JoinStatus
172 * Number of messages waiting to be sent to CADET.
174 uint8_t msgs_pending;
178 * @see enum ChannelDirection
185 * List of connected clients.
189 struct ClientList *prev;
190 struct ClientList *next;
191 struct GNUNET_SERVICE_Client *client;
196 * Client context for an origin or member.
200 struct ClientList *clients_head;
201 struct ClientList *clients_tail;
204 * Public key of the group.
206 struct GNUNET_CRYPTO_EddsaPublicKey pub_key;
209 * Hash of @a pub_key.
211 struct GNUNET_HashCode pub_key_hash;
216 struct GNUNET_HashCode cadet_port_hash;
219 * Is the client disconnected? #GNUNET_YES or #GNUNET_NO
221 uint8_t disconnected;
224 * Is this an origin (#GNUNET_YES), or member (#GNUNET_NO)?
229 struct Origin *origin;
230 struct Member *member;
236 * Client context for a group's origin.
243 * Private key of the group.
245 struct GNUNET_CRYPTO_EddsaPrivateKey priv_key;
250 struct GNUNET_CADET_Port *cadet_port;
253 * Last message fragment ID sent to the group.
255 uint64_t max_fragment_id;
260 * Client context for a group member.
267 * Private key of the member.
269 struct GNUNET_CRYPTO_EcdsaPrivateKey priv_key;
272 * Public key of the member.
274 struct GNUNET_CRYPTO_EcdsaPublicKey pub_key;
277 * Hash of @a pub_key.
279 struct GNUNET_HashCode pub_key_hash;
282 * Join request sent to the origin / members.
284 struct MulticastJoinRequestMessage *join_req;
287 * Join decision sent in reply to our request.
289 * Only a positive decision is stored here, in case of a negative decision the
290 * client is disconnected.
292 struct MulticastJoinDecisionMessageHeader *join_dcsn;
295 * CADET channel to the origin.
297 struct Channel *origin_channel;
300 * Peer identity of origin.
302 struct GNUNET_PeerIdentity origin;
305 * Peer identity of relays (other members to connect).
307 struct GNUNET_PeerIdentity *relays;
310 * Last request fragment ID sent to the origin.
312 uint64_t max_fragment_id;
315 * Number of @a relays.
317 uint32_t relay_count;
325 struct GNUNET_SERVICE_Client *client;
330 struct ReplayRequestKey
332 uint64_t fragment_id;
334 uint64_t fragment_offset;
340 * Task run during shutdown.
345 shutdown_task (void *cls)
349 GNUNET_CADET_disconnect (cadet);
354 GNUNET_STATISTICS_destroy (stats, GNUNET_YES);
357 /* FIXME: do more clean up here */
362 * Clean up origin data structures after a client disconnected.
365 cleanup_origin (struct Origin *orig)
367 struct Group *grp = &orig->group;
368 GNUNET_CONTAINER_multihashmap_remove (origins, &grp->pub_key_hash, orig);
369 if (NULL != orig->cadet_port)
371 GNUNET_CADET_close_port (orig->cadet_port);
372 orig->cadet_port = NULL;
379 * Clean up member data structures after a client disconnected.
382 cleanup_member (struct Member *mem)
384 struct Group *grp = &mem->group;
385 struct GNUNET_CONTAINER_MultiHashMap *
386 grp_mem = GNUNET_CONTAINER_multihashmap_get (group_members,
388 GNUNET_assert (NULL != grp_mem);
389 GNUNET_CONTAINER_multihashmap_remove (grp_mem, &mem->pub_key_hash, mem);
391 if (0 == GNUNET_CONTAINER_multihashmap_size (grp_mem))
393 GNUNET_CONTAINER_multihashmap_remove (group_members, &grp->pub_key_hash,
395 GNUNET_CONTAINER_multihashmap_destroy (grp_mem);
397 if (NULL != mem->join_dcsn)
399 GNUNET_free (mem->join_dcsn);
400 mem->join_dcsn = NULL;
402 GNUNET_CONTAINER_multihashmap_remove (members, &grp->pub_key_hash, mem);
408 * Clean up group data structures after a client disconnected.
411 cleanup_group (struct Group *grp)
413 (GNUNET_YES == grp->is_origin)
414 ? cleanup_origin (grp->origin)
415 : cleanup_member (grp->member);
420 replay_key_hash (uint64_t fragment_id, uint64_t message_id,
421 uint64_t fragment_offset, uint64_t flags,
422 struct GNUNET_HashCode *key_hash)
424 struct ReplayRequestKey key = {
425 .fragment_id = fragment_id,
426 .message_id = message_id,
427 .fragment_offset = fragment_offset,
430 GNUNET_CRYPTO_hash (&key, sizeof (key), key_hash);
435 * Remove channel from replay request hashmap.
440 * @return #GNUNET_YES if there are more entries to process,
441 * #GNUNET_NO when reached end of hashmap.
444 replay_req_remove_cadet (struct Channel *chn)
446 struct GNUNET_CONTAINER_MultiHashMap *
447 grp_replay_req = GNUNET_CONTAINER_multihashmap_get (replay_req_cadet,
448 &chn->group->pub_key_hash);
449 if (NULL == grp_replay_req)
452 struct GNUNET_CONTAINER_MultiHashMapIterator *
453 it = GNUNET_CONTAINER_multihashmap_iterator_create (grp_replay_req);
454 struct GNUNET_HashCode key;
455 const struct Channel *c;
457 == GNUNET_CONTAINER_multihashmap_iterator_next (it, &key,
462 GNUNET_CONTAINER_multihashmap_remove (grp_replay_req, &key, chn);
463 GNUNET_CONTAINER_multihashmap_iterator_destroy (it);
467 GNUNET_CONTAINER_multihashmap_iterator_destroy (it);
473 * Remove client from replay request hashmap.
478 * @return #GNUNET_YES if there are more entries to process,
479 * #GNUNET_NO when reached end of hashmap.
482 replay_req_remove_client (struct Group *grp, struct GNUNET_SERVICE_Client *client)
484 struct GNUNET_CONTAINER_MultiHashMap *
485 grp_replay_req = GNUNET_CONTAINER_multihashmap_get (replay_req_client,
487 if (NULL == grp_replay_req)
490 struct GNUNET_CONTAINER_MultiHashMapIterator *
491 it = GNUNET_CONTAINER_multihashmap_iterator_create (grp_replay_req);
492 struct GNUNET_HashCode key;
493 const struct GNUNET_SERVICE_Client *c;
495 == GNUNET_CONTAINER_multihashmap_iterator_next (it, &key,
500 GNUNET_CONTAINER_multihashmap_remove (replay_req_client, &key, client);
501 GNUNET_CONTAINER_multihashmap_iterator_destroy (it);
505 GNUNET_CONTAINER_multihashmap_iterator_destroy (it);
511 * Send message to a client.
514 client_send (struct GNUNET_SERVICE_Client *client,
515 const struct GNUNET_MessageHeader *msg)
517 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
518 "%p Sending message to client.\n", client);
520 struct GNUNET_MQ_Envelope *
521 env = GNUNET_MQ_msg_copy (msg);
523 GNUNET_MQ_send (GNUNET_SERVICE_client_get_mq (client),
529 * Send message to all clients connected to the group.
532 client_send_group (const struct Group *grp,
533 const struct GNUNET_MessageHeader *msg)
535 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
536 "%p Sending message to all clients of the group.\n", grp);
538 struct ClientList *cl = grp->clients_head;
541 struct GNUNET_MQ_Envelope *
542 env = GNUNET_MQ_msg_copy (msg);
544 GNUNET_MQ_send (GNUNET_SERVICE_client_get_mq (cl->client),
552 * Iterator callback for sending a message to origin clients.
555 client_send_origin_cb (void *cls, const struct GNUNET_HashCode *pub_key_hash,
558 const struct GNUNET_MessageHeader *msg = cls;
559 struct Member *orig = origin;
561 client_send_group (&orig->group, msg);
567 * Iterator callback for sending a message to member clients.
570 client_send_member_cb (void *cls, const struct GNUNET_HashCode *pub_key_hash,
573 const struct GNUNET_MessageHeader *msg = cls;
574 struct Member *mem = member;
576 if (NULL != mem->join_dcsn)
577 { /* Only send message to admitted members */
578 client_send_group (&mem->group, msg);
585 * Send message to all origin and member clients connected to the group.
587 * @param pub_key_hash
588 * H(key_pub) of the group.
593 client_send_all (struct GNUNET_HashCode *pub_key_hash,
594 const struct GNUNET_MessageHeader *msg)
597 n += GNUNET_CONTAINER_multihashmap_get_multiple (origins, pub_key_hash,
598 client_send_origin_cb,
600 n += GNUNET_CONTAINER_multihashmap_get_multiple (members, pub_key_hash,
601 client_send_member_cb,
608 * Send message to a random origin client or a random member client.
610 * @param grp The group to send @a msg to.
611 * @param msg Message to send.
614 client_send_random (struct GNUNET_HashCode *pub_key_hash,
615 const struct GNUNET_MessageHeader *msg)
618 n = GNUNET_CONTAINER_multihashmap_get_random (origins, client_send_origin_cb,
621 n = GNUNET_CONTAINER_multihashmap_get_random (members, client_send_member_cb,
628 * Send message to all origin clients connected to the group.
630 * @param pub_key_hash
631 * H(key_pub) of the group.
636 client_send_origin (struct GNUNET_HashCode *pub_key_hash,
637 const struct GNUNET_MessageHeader *msg)
640 n += GNUNET_CONTAINER_multihashmap_get_multiple (origins, pub_key_hash,
641 client_send_origin_cb,
648 * Send fragment acknowledgement to all clients of the channel.
650 * @param pub_key_hash
651 * H(key_pub) of the group.
654 client_send_ack (struct GNUNET_HashCode *pub_key_hash)
656 static struct GNUNET_MessageHeader *msg = NULL;
659 msg = GNUNET_malloc (sizeof (*msg));
660 msg->type = htons (GNUNET_MESSAGE_TYPE_MULTICAST_FRAGMENT_ACK);
661 msg->size = htons (sizeof (*msg));
663 client_send_all (pub_key_hash, msg);
667 struct CadetTransmitClosure
670 const struct GNUNET_MessageHeader *msg;
675 * CADET is ready to transmit a message.
678 cadet_notify_transmit_ready (void *cls, size_t buf_size, void *buf)
682 /* FIXME: connection closed */
685 struct CadetTransmitClosure *tcls = cls;
686 struct Channel *chn = tcls->chn;
687 uint16_t msg_size = ntohs (tcls->msg->size);
688 GNUNET_assert (msg_size <= buf_size);
689 GNUNET_memcpy (buf, tcls->msg, msg_size);
692 if (0 == chn->msgs_pending)
696 else if (0 == --chn->msgs_pending)
698 client_send_ack (&chn->group_pub_hash);
705 * Send a message to a CADET channel.
707 * @param chn Channel.
708 * @param msg Message.
711 cadet_send_channel (struct Channel *chn, const struct GNUNET_MessageHeader *msg)
713 struct CadetTransmitClosure *tcls = GNUNET_malloc (sizeof (*tcls));
719 = GNUNET_CADET_notify_transmit_ready (chn->channel, GNUNET_NO,
720 GNUNET_TIME_UNIT_FOREVER_REL,
722 &cadet_notify_transmit_ready,
724 GNUNET_assert (NULL != chn->tmit_handle);
729 * Create new outgoing CADET channel.
732 * Peer to connect to.
733 * @param group_pub_key
734 * Public key of group the channel belongs to.
735 * @param group_pub_hash
736 * Hash of @a group_pub_key.
740 static struct Channel *
741 cadet_channel_create (struct Group *grp, struct GNUNET_PeerIdentity *peer)
743 struct Channel *chn = GNUNET_malloc (sizeof (*chn));
745 chn->group_pub_key = grp->pub_key;
746 chn->group_pub_hash = grp->pub_key_hash;
748 chn->direction = DIR_OUTGOING;
749 chn->join_status = JOIN_WAITING;
750 chn->channel = GNUNET_CADET_channel_create (cadet, chn, &chn->peer,
751 &grp->cadet_port_hash,
752 GNUNET_CADET_OPTION_RELIABLE);
753 GNUNET_CONTAINER_multihashmap_put (channels_out, &chn->group_pub_hash, chn,
754 GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
760 * Create CADET channel and send a join request.
763 cadet_send_join_request (struct Member *mem)
765 mem->origin_channel = cadet_channel_create (&mem->group, &mem->origin);
766 cadet_send_channel (mem->origin_channel, &mem->join_req->header);
769 for (i = 0; i < mem->relay_count; i++)
772 chn = cadet_channel_create (&mem->group, &mem->relays[i]);
773 cadet_send_channel (chn, &mem->join_req->header);
779 cadet_send_join_decision_cb (void *cls,
780 const struct GNUNET_HashCode *group_pub_hash,
783 const struct MulticastJoinDecisionMessageHeader *hdcsn = cls;
784 struct Channel *chn = channel;
786 if (0 == memcmp (&hdcsn->member_pub_key, &chn->member_pub_key, sizeof (chn->member_pub_key))
787 && 0 == memcmp (&hdcsn->peer, &chn->peer, sizeof (chn->peer)))
789 cadet_send_channel (chn, &hdcsn->header);
797 * Send join decision to a remote peer.
800 cadet_send_join_decision (struct Group *grp,
801 const struct MulticastJoinDecisionMessageHeader *hdcsn)
803 GNUNET_CONTAINER_multihashmap_get_multiple (channels_in, &grp->pub_key_hash,
804 &cadet_send_join_decision_cb,
810 * Iterator callback for sending a message to origin clients.
813 cadet_send_cb (void *cls, const struct GNUNET_HashCode *pub_key_hash,
816 const struct GNUNET_MessageHeader *msg = cls;
817 struct Channel *chn = channel;
818 if (JOIN_ADMITTED == chn->join_status)
819 cadet_send_channel (chn, msg);
825 * Send message to all connected children.
828 cadet_send_children (struct GNUNET_HashCode *pub_key_hash,
829 const struct GNUNET_MessageHeader *msg)
832 if (channels_in != NULL)
833 n += GNUNET_CONTAINER_multihashmap_get_multiple (channels_in, pub_key_hash,
834 cadet_send_cb, (void *) msg);
839 #if 0 // unused as yet
841 * Send message to all connected parents.
844 cadet_send_parents (struct GNUNET_HashCode *pub_key_hash,
845 const struct GNUNET_MessageHeader *msg)
848 if (channels_in != NULL)
849 n += GNUNET_CONTAINER_multihashmap_get_multiple (channels_out, pub_key_hash,
850 cadet_send_cb, (void *) msg);
857 * New incoming CADET channel.
860 cadet_notify_channel_new (void *cls,
861 struct GNUNET_CADET_Channel *channel,
862 const struct GNUNET_PeerIdentity *initiator,
863 const struct GNUNET_HashCode *port,
864 enum GNUNET_CADET_ChannelOption options)
871 * CADET channel is being destroyed.
874 cadet_notify_channel_end (void *cls,
875 const struct GNUNET_CADET_Channel *channel,
881 struct Channel *chn = ctx;
882 if (NULL != chn->group)
884 if (GNUNET_NO == chn->group->is_origin)
886 struct Member *mem = (struct Member *) chn->group;
887 if (chn == mem->origin_channel)
888 mem->origin_channel = NULL;
892 while (GNUNET_YES == replay_req_remove_cadet (chn));
899 group_set_cadet_port_hash (struct Group *grp)
902 struct GNUNET_CRYPTO_EddsaPublicKey pub_key;
906 GNUNET_APPLICATION_TYPE_MULTICAST,
908 GNUNET_CRYPTO_hash (&port, sizeof (port), &grp->cadet_port_hash);
913 * Handle a connecting client starting an origin.
916 handle_client_origin_start (void *cls,
917 const struct MulticastOriginStartMessage *msg)
919 struct Client *c = cls;
920 struct GNUNET_SERVICE_Client *client = c->client;
922 struct GNUNET_CRYPTO_EddsaPublicKey pub_key;
923 struct GNUNET_HashCode pub_key_hash;
925 GNUNET_CRYPTO_eddsa_key_get_public (&msg->group_key, &pub_key);
926 GNUNET_CRYPTO_hash (&pub_key, sizeof (pub_key), &pub_key_hash);
929 orig = GNUNET_CONTAINER_multihashmap_get (origins, &pub_key_hash);
934 orig = GNUNET_new (struct Origin);
935 orig->priv_key = msg->group_key;
936 orig->max_fragment_id = GNUNET_ntohll (msg->max_fragment_id);
938 grp = c->group = &orig->group;
940 grp->is_origin = GNUNET_YES;
941 grp->pub_key = pub_key;
942 grp->pub_key_hash = pub_key_hash;
944 GNUNET_CONTAINER_multihashmap_put (origins, &grp->pub_key_hash, orig,
945 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
947 group_set_cadet_port_hash (grp);
948 orig->cadet_port = GNUNET_CADET_open_port (cadet, &grp->cadet_port_hash,
949 cadet_notify_channel_new, NULL);
956 struct ClientList *cl = GNUNET_new (struct ClientList);
958 GNUNET_CONTAINER_DLL_insert (grp->clients_head, grp->clients_tail, cl);
960 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
961 "%p Client connected as origin to group %s.\n",
962 orig, GNUNET_h2s (&grp->pub_key_hash));
963 GNUNET_SERVICE_client_continue (client);
968 check_client_member_join (void *cls,
969 const struct MulticastMemberJoinMessage *msg)
971 uint16_t msg_size = ntohs (msg->header.size);
972 struct GNUNET_PeerIdentity *relays = (struct GNUNET_PeerIdentity *) &msg[1];
973 uint32_t relay_count = ntohl (msg->relay_count);
974 uint16_t relay_size = relay_count * sizeof (*relays);
975 struct GNUNET_MessageHeader *join_msg = NULL;
976 uint16_t join_msg_size = 0;
977 if (sizeof (*msg) + relay_size + sizeof (struct GNUNET_MessageHeader)
980 join_msg = (struct GNUNET_MessageHeader *)
981 (((char *) &msg[1]) + relay_size);
982 join_msg_size = ntohs (join_msg->size);
985 msg_size == (sizeof (*msg) + relay_size + join_msg_size)
992 * Handle a connecting client joining a group.
995 handle_client_member_join (void *cls,
996 const struct MulticastMemberJoinMessage *msg)
998 struct Client *c = cls;
999 struct GNUNET_SERVICE_Client *client = c->client;
1001 uint16_t msg_size = ntohs (msg->header.size);
1003 struct GNUNET_CRYPTO_EcdsaPublicKey mem_pub_key;
1004 struct GNUNET_HashCode pub_key_hash, mem_pub_key_hash;
1006 GNUNET_CRYPTO_ecdsa_key_get_public (&msg->member_key, &mem_pub_key);
1007 GNUNET_CRYPTO_hash (&mem_pub_key, sizeof (mem_pub_key), &mem_pub_key_hash);
1008 GNUNET_CRYPTO_hash (&msg->group_pub_key, sizeof (msg->group_pub_key), &pub_key_hash);
1010 struct GNUNET_CONTAINER_MultiHashMap *
1011 grp_mem = GNUNET_CONTAINER_multihashmap_get (group_members, &pub_key_hash);
1012 struct Member *mem = NULL;
1015 if (NULL != grp_mem)
1017 mem = GNUNET_CONTAINER_multihashmap_get (grp_mem, &mem_pub_key_hash);
1021 mem = GNUNET_new (struct Member);
1022 mem->priv_key = msg->member_key;
1023 mem->pub_key = mem_pub_key;
1024 mem->pub_key_hash = mem_pub_key_hash;
1025 mem->max_fragment_id = 0; // FIXME
1027 grp = c->group = &mem->group;
1029 grp->is_origin = GNUNET_NO;
1030 grp->pub_key = msg->group_pub_key;
1031 grp->pub_key_hash = pub_key_hash;
1032 group_set_cadet_port_hash (grp);
1034 if (NULL == grp_mem)
1036 grp_mem = GNUNET_CONTAINER_multihashmap_create (1, GNUNET_YES);
1037 GNUNET_CONTAINER_multihashmap_put (group_members, &grp->pub_key_hash, grp_mem,
1038 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
1040 GNUNET_CONTAINER_multihashmap_put (grp_mem, &mem->pub_key_hash, mem,
1041 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
1042 GNUNET_CONTAINER_multihashmap_put (members, &grp->pub_key_hash, mem,
1043 GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
1050 struct ClientList *cl = GNUNET_new (struct ClientList);
1051 cl->client = client;
1052 GNUNET_CONTAINER_DLL_insert (grp->clients_head, grp->clients_tail, cl);
1054 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1055 "%p Client connected to group %s..\n",
1056 mem, GNUNET_h2s (&grp->pub_key_hash));
1057 char *str = GNUNET_CRYPTO_ecdsa_public_key_to_string (&mem->pub_key);
1058 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1059 "%p ..as member %s (%s).\n",
1060 mem, GNUNET_h2s (&mem->pub_key_hash), str);
1063 if (NULL != mem->join_dcsn)
1064 { /* Already got a join decision, send it to client. */
1065 struct GNUNET_MQ_Envelope *
1066 env = GNUNET_MQ_msg_copy (&mem->join_dcsn->header);
1068 GNUNET_MQ_send (GNUNET_SERVICE_client_get_mq (client),
1072 { /* First client of the group, send join request. */
1073 struct GNUNET_PeerIdentity *relays = (struct GNUNET_PeerIdentity *) &msg[1];
1074 uint32_t relay_count = ntohl (msg->relay_count);
1075 uint16_t relay_size = relay_count * sizeof (*relays);
1076 struct GNUNET_MessageHeader *join_msg = NULL;
1077 uint16_t join_msg_size = 0;
1078 if (sizeof (*msg) + relay_size + sizeof (struct GNUNET_MessageHeader)
1081 join_msg = (struct GNUNET_MessageHeader *)
1082 (((char *) &msg[1]) + relay_size);
1083 join_msg_size = ntohs (join_msg->size);
1086 struct MulticastJoinRequestMessage *
1087 req = GNUNET_malloc (sizeof (*req) + join_msg_size);
1088 req->header.size = htons (sizeof (*req) + join_msg_size);
1089 req->header.type = htons (GNUNET_MESSAGE_TYPE_MULTICAST_JOIN_REQUEST);
1090 req->group_pub_key = grp->pub_key;
1091 req->peer = this_peer;
1092 GNUNET_CRYPTO_ecdsa_key_get_public (&mem->priv_key, &req->member_pub_key);
1093 if (0 < join_msg_size)
1094 GNUNET_memcpy (&req[1], join_msg, join_msg_size);
1096 req->member_pub_key = mem->pub_key;
1097 req->purpose.size = htonl (msg_size
1098 - sizeof (req->header)
1099 - sizeof (req->reserved)
1100 - sizeof (req->signature));
1101 req->purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_MULTICAST_REQUEST);
1103 if (GNUNET_OK != GNUNET_CRYPTO_ecdsa_sign (&mem->priv_key, &req->purpose,
1106 /* FIXME: handle error */
1110 if (NULL != mem->join_req)
1111 GNUNET_free (mem->join_req);
1112 mem->join_req = req;
1114 if (0 == client_send_origin (&grp->pub_key_hash, &mem->join_req->header))
1115 { /* No local origins, send to remote origin */
1116 cadet_send_join_request (mem);
1119 GNUNET_SERVICE_client_continue (client);
1124 client_send_join_decision (struct Member *mem,
1125 const struct MulticastJoinDecisionMessageHeader *hdcsn)
1127 client_send_group (&mem->group, &hdcsn->header);
1129 const struct MulticastJoinDecisionMessage *
1130 dcsn = (const struct MulticastJoinDecisionMessage *) &hdcsn[1];
1131 if (GNUNET_YES == ntohl (dcsn->is_admitted))
1132 { /* Member admitted, store join_decision. */
1133 uint16_t dcsn_size = ntohs (dcsn->header.size);
1134 mem->join_dcsn = GNUNET_malloc (dcsn_size);
1135 GNUNET_memcpy (mem->join_dcsn, dcsn, dcsn_size);
1138 { /* Refused entry, but replay would be still possible for past members. */
1144 check_client_join_decision (void *cls,
1145 const struct MulticastJoinDecisionMessageHeader *hdcsn)
1152 * Join decision from client.
1155 handle_client_join_decision (void *cls,
1156 const struct MulticastJoinDecisionMessageHeader *hdcsn)
1158 struct Client *c = cls;
1159 struct GNUNET_SERVICE_Client *client = c->client;
1160 struct Group *grp = c->group;
1165 GNUNET_SERVICE_client_drop (client);
1168 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1169 "%p Got join decision from client for group %s..\n",
1170 grp, GNUNET_h2s (&grp->pub_key_hash));
1172 struct GNUNET_CONTAINER_MultiHashMap *
1173 grp_mem = GNUNET_CONTAINER_multihashmap_get (group_members,
1174 &grp->pub_key_hash);
1175 struct Member *mem = NULL;
1176 if (NULL != grp_mem)
1178 struct GNUNET_HashCode member_key_hash;
1179 GNUNET_CRYPTO_hash (&hdcsn->member_pub_key, sizeof (hdcsn->member_pub_key),
1181 mem = GNUNET_CONTAINER_multihashmap_get (grp_mem, &member_key_hash);
1182 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1183 "%p ..and member %s: %p\n",
1184 grp, GNUNET_h2s (&member_key_hash), mem);
1187 { /* Found local member */
1188 client_send_join_decision (mem, hdcsn);
1191 { /* Look for remote member */
1192 cadet_send_join_decision (grp, hdcsn);
1194 GNUNET_SERVICE_client_continue (client);
1199 check_client_multicast_message (void *cls,
1200 const struct GNUNET_MULTICAST_MessageHeader *msg)
1207 * Incoming message from a client.
1210 handle_client_multicast_message (void *cls,
1211 const struct GNUNET_MULTICAST_MessageHeader *msg)
1213 struct Client *c = cls;
1214 struct GNUNET_SERVICE_Client *client = c->client;
1215 struct Group *grp = c->group;
1220 GNUNET_SERVICE_client_drop (client);
1223 GNUNET_assert (GNUNET_YES == grp->is_origin);
1224 struct Origin *orig = grp->origin;
1226 /* FIXME: yucky, should use separate message structs for P2P and CS! */
1227 struct GNUNET_MULTICAST_MessageHeader *
1228 out = (struct GNUNET_MULTICAST_MessageHeader *) GNUNET_copy_message (&msg->header);
1229 out->fragment_id = GNUNET_htonll (++orig->max_fragment_id);
1230 out->purpose.size = htonl (ntohs (out->header.size)
1231 - sizeof (out->header)
1232 - sizeof (out->hop_counter)
1233 - sizeof (out->signature));
1234 out->purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_MULTICAST_MESSAGE);
1236 if (GNUNET_OK != GNUNET_CRYPTO_eddsa_sign (&orig->priv_key, &out->purpose,
1242 client_send_all (&grp->pub_key_hash, &out->header);
1243 if (0 == cadet_send_children (&grp->pub_key_hash, &out->header))
1245 client_send_ack (&grp->pub_key_hash);
1249 GNUNET_SERVICE_client_continue (client);
1254 check_client_multicast_request (void *cls,
1255 const struct GNUNET_MULTICAST_RequestHeader *req)
1262 * Incoming request from a client.
1265 handle_client_multicast_request (void *cls,
1266 const struct GNUNET_MULTICAST_RequestHeader *req)
1268 struct Client *c = cls;
1269 struct GNUNET_SERVICE_Client *client = c->client;
1270 struct Group *grp = c->group;
1275 GNUNET_SERVICE_client_drop (client);
1278 GNUNET_assert (GNUNET_NO == grp->is_origin);
1279 struct Member *mem = grp->member;
1281 /* FIXME: yucky, should use separate message structs for P2P and CS! */
1282 struct GNUNET_MULTICAST_RequestHeader *
1283 out = (struct GNUNET_MULTICAST_RequestHeader *) GNUNET_copy_message (&req->header);
1284 out->member_pub_key = mem->pub_key;
1285 out->fragment_id = GNUNET_ntohll (++mem->max_fragment_id);
1286 out->purpose.size = htonl (ntohs (out->header.size)
1287 - sizeof (out->header)
1288 - sizeof (out->member_pub_key)
1289 - sizeof (out->signature));
1290 out->purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_MULTICAST_REQUEST);
1292 if (GNUNET_OK != GNUNET_CRYPTO_ecdsa_sign (&mem->priv_key, &out->purpose,
1298 uint8_t send_ack = GNUNET_YES;
1299 if (0 == client_send_origin (&grp->pub_key_hash, &out->header))
1300 { /* No local origins, send to remote origin */
1301 if (NULL != mem->origin_channel)
1303 cadet_send_channel (mem->origin_channel, &out->header);
1304 send_ack = GNUNET_NO;
1308 /* FIXME: not yet connected to origin */
1309 GNUNET_SERVICE_client_drop (client);
1314 if (GNUNET_YES == send_ack)
1316 client_send_ack (&grp->pub_key_hash);
1319 GNUNET_SERVICE_client_continue (client);
1324 * Incoming replay request from a client.
1327 handle_client_replay_request (void *cls,
1328 const struct MulticastReplayRequestMessage *rep)
1330 struct Client *c = cls;
1331 struct GNUNET_SERVICE_Client *client = c->client;
1332 struct Group *grp = c->group;
1337 GNUNET_SERVICE_client_drop (client);
1340 GNUNET_assert (GNUNET_NO == grp->is_origin);
1341 struct Member *mem = grp->member;
1343 struct GNUNET_CONTAINER_MultiHashMap *
1344 grp_replay_req = GNUNET_CONTAINER_multihashmap_get (replay_req_client,
1345 &grp->pub_key_hash);
1346 if (NULL == grp_replay_req)
1348 grp_replay_req = GNUNET_CONTAINER_multihashmap_create (1, GNUNET_NO);
1349 GNUNET_CONTAINER_multihashmap_put (replay_req_client,
1350 &grp->pub_key_hash, grp_replay_req,
1351 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
1354 struct GNUNET_HashCode key_hash;
1355 replay_key_hash (rep->fragment_id, rep->message_id, rep->fragment_offset,
1356 rep->flags, &key_hash);
1357 GNUNET_CONTAINER_multihashmap_put (grp_replay_req, &key_hash, client,
1358 GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
1360 if (0 == client_send_origin (&grp->pub_key_hash, &rep->header))
1361 { /* No local origin, replay from remote members / origin. */
1362 if (NULL != mem->origin_channel)
1364 cadet_send_channel (mem->origin_channel, &rep->header);
1368 /* FIXME: not yet connected to origin */
1369 GNUNET_SERVICE_client_drop (client);
1373 GNUNET_SERVICE_client_continue (client);
1378 cadet_send_replay_response_cb (void *cls,
1379 const struct GNUNET_HashCode *key_hash,
1382 struct Channel *chn = value;
1383 struct GNUNET_MessageHeader *msg = cls;
1385 cadet_send_channel (chn, msg);
1391 client_send_replay_response_cb (void *cls,
1392 const struct GNUNET_HashCode *key_hash,
1395 struct GNUNET_SERVICE_Client *client = value;
1396 struct GNUNET_MessageHeader *msg = cls;
1398 client_send (client, msg);
1404 check_client_replay_response_end (void *cls,
1405 const struct MulticastReplayResponseMessage *res)
1412 * End of replay response from a client.
1415 handle_client_replay_response_end (void *cls,
1416 const struct MulticastReplayResponseMessage *res)
1418 struct Client *c = cls;
1419 struct GNUNET_SERVICE_Client *client = c->client;
1420 struct Group *grp = c->group;
1425 GNUNET_SERVICE_client_drop (client);
1429 struct GNUNET_HashCode key_hash;
1430 replay_key_hash (res->fragment_id, res->message_id, res->fragment_offset,
1431 res->flags, &key_hash);
1433 struct GNUNET_CONTAINER_MultiHashMap *
1434 grp_replay_req_cadet = GNUNET_CONTAINER_multihashmap_get (replay_req_cadet,
1435 &grp->pub_key_hash);
1436 if (NULL != grp_replay_req_cadet)
1438 GNUNET_CONTAINER_multihashmap_remove_all (grp_replay_req_cadet, &key_hash);
1440 struct GNUNET_CONTAINER_MultiHashMap *
1441 grp_replay_req_client = GNUNET_CONTAINER_multihashmap_get (replay_req_client,
1442 &grp->pub_key_hash);
1443 if (NULL != grp_replay_req_client)
1445 GNUNET_CONTAINER_multihashmap_remove_all (grp_replay_req_client, &key_hash);
1447 GNUNET_SERVICE_client_continue (client);
1452 check_client_replay_response (void *cls,
1453 const struct MulticastReplayResponseMessage *res)
1455 const struct GNUNET_MessageHeader *msg = &res->header;
1456 if (GNUNET_MULTICAST_REC_OK == res->error_code)
1458 msg = GNUNET_MQ_extract_nested_mh (res);
1461 return GNUNET_SYSERR;
1469 * Incoming replay response from a client.
1471 * Respond with a multicast message on success, or otherwise with an error code.
1474 handle_client_replay_response (void *cls,
1475 const struct MulticastReplayResponseMessage *res)
1477 struct Client *c = cls;
1478 struct GNUNET_SERVICE_Client *client = c->client;
1479 struct Group *grp = c->group;
1484 GNUNET_SERVICE_client_drop (client);
1488 const struct GNUNET_MessageHeader *msg = &res->header;
1489 if (GNUNET_MULTICAST_REC_OK == res->error_code)
1491 msg = GNUNET_MQ_extract_nested_mh (res);
1494 struct GNUNET_HashCode key_hash;
1495 replay_key_hash (res->fragment_id, res->message_id, res->fragment_offset,
1496 res->flags, &key_hash);
1498 struct GNUNET_CONTAINER_MultiHashMap *
1499 grp_replay_req_cadet = GNUNET_CONTAINER_multihashmap_get (replay_req_cadet,
1500 &grp->pub_key_hash);
1501 if (NULL != grp_replay_req_cadet)
1503 GNUNET_CONTAINER_multihashmap_get_multiple (grp_replay_req_cadet, &key_hash,
1504 cadet_send_replay_response_cb,
1507 if (GNUNET_MULTICAST_REC_OK == res->error_code)
1509 struct GNUNET_CONTAINER_MultiHashMap *
1510 grp_replay_req_client = GNUNET_CONTAINER_multihashmap_get (replay_req_client,
1511 &grp->pub_key_hash);
1512 if (NULL != grp_replay_req_client)
1514 GNUNET_CONTAINER_multihashmap_get_multiple (grp_replay_req_client, &key_hash,
1515 client_send_replay_response_cb,
1521 handle_client_replay_response_end (c, res);
1524 GNUNET_SERVICE_client_continue (client);
1529 * Incoming join request message from CADET.
1532 cadet_recv_join_request (void *cls,
1533 struct GNUNET_CADET_Channel *channel,
1535 const struct GNUNET_MessageHeader *m)
1537 const struct MulticastJoinRequestMessage *
1538 req = (const struct MulticastJoinRequestMessage *) m;
1539 uint16_t size = ntohs (m->size);
1540 if (size < sizeof (*req))
1542 GNUNET_break_op (0);
1543 return GNUNET_SYSERR;
1547 GNUNET_break_op (0);
1548 return GNUNET_SYSERR;
1550 if (ntohl (req->purpose.size) != (size
1551 - sizeof (req->header)
1552 - sizeof (req->reserved)
1553 - sizeof (req->signature)))
1555 GNUNET_break_op (0);
1556 return GNUNET_SYSERR;
1559 GNUNET_CRYPTO_ecdsa_verify (GNUNET_SIGNATURE_PURPOSE_MULTICAST_REQUEST,
1560 &req->purpose, &req->signature,
1561 &req->member_pub_key))
1563 GNUNET_break_op (0);
1564 return GNUNET_SYSERR;
1567 struct GNUNET_HashCode group_pub_hash;
1568 GNUNET_CRYPTO_hash (&req->group_pub_key, sizeof (req->group_pub_key), &group_pub_hash);
1570 struct Channel *chn = GNUNET_malloc (sizeof *chn);
1571 chn->channel = channel;
1572 chn->group_pub_key = req->group_pub_key;
1573 chn->group_pub_hash = group_pub_hash;
1574 chn->member_pub_key = req->member_pub_key;
1575 chn->peer = req->peer;
1576 chn->join_status = JOIN_WAITING;
1577 GNUNET_CONTAINER_multihashmap_put (channels_in, &chn->group_pub_hash, chn,
1578 GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
1580 client_send_all (&group_pub_hash, m);
1586 * Incoming join decision message from CADET.
1589 cadet_recv_join_decision (void *cls,
1590 struct GNUNET_CADET_Channel *channel,
1592 const struct GNUNET_MessageHeader *m)
1594 const struct MulticastJoinDecisionMessage *
1595 dcsn = (const struct MulticastJoinDecisionMessage *) m;
1596 uint16_t size = ntohs (m->size);
1597 if (size < sizeof (*dcsn))
1599 GNUNET_break_op (0);
1600 return GNUNET_SYSERR;
1602 struct Channel *chn = *ctx;
1605 GNUNET_break_op (0);
1606 return GNUNET_SYSERR;
1608 if (NULL == chn->group || GNUNET_NO != chn->group->is_origin)
1610 GNUNET_break_op (0);
1611 return GNUNET_SYSERR;
1613 switch (chn->join_status)
1616 return GNUNET_SYSERR;
1621 case JOIN_NOT_ASKED:
1626 struct MulticastJoinDecisionMessageHeader *
1627 hdcsn = GNUNET_malloc (sizeof (*hdcsn) + size);
1628 hdcsn->peer = chn->peer;
1629 GNUNET_memcpy (&hdcsn[1], dcsn, sizeof (*hdcsn) + size);
1631 struct Member *mem = (struct Member *) chn->group;
1632 client_send_join_decision (mem, hdcsn);
1633 GNUNET_free (hdcsn);
1634 if (GNUNET_YES == ntohs (dcsn->is_admitted))
1636 chn->join_status = JOIN_ADMITTED;
1641 chn->join_status = JOIN_REFUSED;
1642 return GNUNET_SYSERR;
1647 * Incoming multicast message from CADET.
1650 cadet_recv_message (void *cls,
1651 struct GNUNET_CADET_Channel *channel,
1653 const struct GNUNET_MessageHeader *m)
1655 const struct GNUNET_MULTICAST_MessageHeader *
1656 msg = (const struct GNUNET_MULTICAST_MessageHeader *) m;
1657 uint16_t size = ntohs (m->size);
1658 if (size < sizeof (*msg))
1660 GNUNET_break_op (0);
1661 return GNUNET_SYSERR;
1663 struct Channel *chn = *ctx;
1666 GNUNET_break_op (0);
1667 return GNUNET_SYSERR;
1669 if (ntohl (msg->purpose.size) != (size
1670 - sizeof (msg->header)
1671 - sizeof (msg->hop_counter)
1672 - sizeof (msg->signature)))
1674 GNUNET_break_op (0);
1675 return GNUNET_SYSERR;
1678 GNUNET_CRYPTO_eddsa_verify (GNUNET_SIGNATURE_PURPOSE_MULTICAST_MESSAGE,
1679 &msg->purpose, &msg->signature,
1680 &chn->group_pub_key))
1682 GNUNET_break_op (0);
1683 return GNUNET_SYSERR;
1686 client_send_all (&chn->group_pub_hash, m);
1692 * Incoming multicast request message from CADET.
1695 cadet_recv_request (void *cls,
1696 struct GNUNET_CADET_Channel *channel,
1698 const struct GNUNET_MessageHeader *m)
1700 const struct GNUNET_MULTICAST_RequestHeader *
1701 req = (const struct GNUNET_MULTICAST_RequestHeader *) m;
1702 uint16_t size = ntohs (m->size);
1703 if (size < sizeof (*req))
1705 GNUNET_break_op (0);
1706 return GNUNET_SYSERR;
1708 struct Channel *chn = *ctx;
1711 GNUNET_break_op (0);
1712 return GNUNET_SYSERR;
1714 if (ntohl (req->purpose.size) != (size
1715 - sizeof (req->header)
1716 - sizeof (req->member_pub_key)
1717 - sizeof (req->signature)))
1719 GNUNET_break_op (0);
1720 return GNUNET_SYSERR;
1723 GNUNET_CRYPTO_ecdsa_verify (GNUNET_SIGNATURE_PURPOSE_MULTICAST_REQUEST,
1724 &req->purpose, &req->signature,
1725 &req->member_pub_key))
1727 GNUNET_break_op (0);
1728 return GNUNET_SYSERR;
1731 client_send_origin (&chn->group_pub_hash, m);
1737 * Incoming multicast replay request from CADET.
1740 cadet_recv_replay_request (void *cls,
1741 struct GNUNET_CADET_Channel *channel,
1743 const struct GNUNET_MessageHeader *m)
1745 struct MulticastReplayRequestMessage rep;
1746 uint16_t size = ntohs (m->size);
1747 if (size < sizeof (rep))
1749 GNUNET_break_op (0);
1750 return GNUNET_SYSERR;
1752 struct Channel *chn = *ctx;
1754 GNUNET_memcpy (&rep, m, sizeof (rep));
1755 GNUNET_memcpy (&rep.member_pub_key, &chn->member_pub_key, sizeof (chn->member_pub_key));
1757 struct GNUNET_CONTAINER_MultiHashMap *
1758 grp_replay_req = GNUNET_CONTAINER_multihashmap_get (replay_req_cadet,
1759 &chn->group->pub_key_hash);
1760 if (NULL == grp_replay_req)
1762 grp_replay_req = GNUNET_CONTAINER_multihashmap_create (1, GNUNET_NO);
1763 GNUNET_CONTAINER_multihashmap_put (replay_req_cadet,
1764 &chn->group->pub_key_hash, grp_replay_req,
1765 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
1767 struct GNUNET_HashCode key_hash;
1768 replay_key_hash (rep.fragment_id, rep.message_id, rep.fragment_offset,
1769 rep.flags, &key_hash);
1770 GNUNET_CONTAINER_multihashmap_put (grp_replay_req, &key_hash, chn,
1771 GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
1773 client_send_random (&chn->group_pub_hash, &rep.header);
1779 * Incoming multicast replay response from CADET.
1782 cadet_recv_replay_response (void *cls,
1783 struct GNUNET_CADET_Channel *channel,
1785 const struct GNUNET_MessageHeader *m)
1787 //struct Channel *chn = *ctx;
1789 /* @todo FIXME: got replay error response, send request to other members */
1796 * A new client connected.
1799 * @param client client to add
1800 * @param mq message queue for @a client
1804 client_notify_connect (void *cls,
1805 struct GNUNET_SERVICE_Client *client,
1806 struct GNUNET_MQ_Handle *mq)
1808 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Client connected: %p\n", client);
1809 /* FIXME: send connect ACK */
1811 struct Client *c = GNUNET_new (struct Client);
1819 * Called whenever a client is disconnected.
1820 * Frees our resources associated with that client.
1822 * @param cls closure
1823 * @param client identification of the client
1824 * @param app_ctx must match @a client
1827 client_notify_disconnect (void *cls,
1828 struct GNUNET_SERVICE_Client *client,
1831 struct Client *c = app_ctx;
1832 struct Group *grp = c->group;
1837 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1838 "%p User context is NULL in client_disconnect()\n", grp);
1843 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1844 "%p Client (%s) disconnected from group %s\n",
1845 grp, (GNUNET_YES == grp->is_origin) ? "origin" : "member",
1846 GNUNET_h2s (&grp->pub_key_hash));
1848 struct ClientList *cl = grp->clients_head;
1851 if (cl->client == client)
1853 GNUNET_CONTAINER_DLL_remove (grp->clients_head, grp->clients_tail, cl);
1860 while (GNUNET_YES == replay_req_remove_client (grp, client));
1862 if (NULL == grp->clients_head)
1863 { /* Last client disconnected. */
1865 if (NULL != grp->tmit_head)
1866 { /* Send pending messages via CADET before cleanup. */
1867 transmit_message (grp);
1872 cleanup_group (grp);
1879 * Message handlers for CADET.
1881 static const struct GNUNET_CADET_MessageHandler cadet_handlers[] = {
1882 { cadet_recv_join_request,
1883 GNUNET_MESSAGE_TYPE_MULTICAST_JOIN_REQUEST, 0 },
1885 { cadet_recv_message,
1886 GNUNET_MESSAGE_TYPE_MULTICAST_MESSAGE, 0 },
1888 { cadet_recv_request,
1889 GNUNET_MESSAGE_TYPE_MULTICAST_REQUEST, 0 },
1891 { cadet_recv_replay_request,
1892 GNUNET_MESSAGE_TYPE_MULTICAST_REPLAY_REQUEST, 0 },
1894 { cadet_recv_replay_response,
1895 GNUNET_MESSAGE_TYPE_MULTICAST_REPLAY_RESPONSE, 0 },
1904 * @param cls closure
1905 * @param server the initialized server
1906 * @param cfg configuration to use
1910 const struct GNUNET_CONFIGURATION_Handle *c,
1911 struct GNUNET_SERVICE_Handle *svc)
1915 GNUNET_CRYPTO_get_peer_identity (cfg, &this_peer);
1917 stats = GNUNET_STATISTICS_create ("multicast", cfg);
1918 origins = GNUNET_CONTAINER_multihashmap_create (1, GNUNET_YES);
1919 members = GNUNET_CONTAINER_multihashmap_create (1, GNUNET_YES);
1920 group_members = GNUNET_CONTAINER_multihashmap_create (1, GNUNET_NO);
1921 channels_in = GNUNET_CONTAINER_multihashmap_create (1, GNUNET_YES);
1922 channels_out = GNUNET_CONTAINER_multihashmap_create (1, GNUNET_YES);
1923 replay_req_cadet = GNUNET_CONTAINER_multihashmap_create (1, GNUNET_NO);
1924 replay_req_client = GNUNET_CONTAINER_multihashmap_create (1, GNUNET_NO);
1926 cadet = GNUNET_CADET_connect (cfg, NULL,
1927 cadet_notify_channel_end,
1929 GNUNET_assert (NULL != cadet);
1931 GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
1937 * Define "main" method using service macro.
1941 GNUNET_SERVICE_OPTION_NONE,
1943 client_notify_connect,
1944 client_notify_disconnect,
1946 GNUNET_MQ_hd_fixed_size (client_origin_start,
1947 GNUNET_MESSAGE_TYPE_MULTICAST_ORIGIN_START,
1948 struct MulticastOriginStartMessage,
1950 GNUNET_MQ_hd_var_size (client_member_join,
1951 GNUNET_MESSAGE_TYPE_MULTICAST_MEMBER_JOIN,
1952 struct MulticastMemberJoinMessage,
1954 GNUNET_MQ_hd_var_size (client_join_decision,
1955 GNUNET_MESSAGE_TYPE_MULTICAST_JOIN_DECISION,
1956 struct MulticastJoinDecisionMessageHeader,
1958 GNUNET_MQ_hd_var_size (client_multicast_message,
1959 GNUNET_MESSAGE_TYPE_MULTICAST_MESSAGE,
1960 struct GNUNET_MULTICAST_MessageHeader,
1962 GNUNET_MQ_hd_var_size (client_multicast_request,
1963 GNUNET_MESSAGE_TYPE_MULTICAST_REQUEST,
1964 struct GNUNET_MULTICAST_RequestHeader,
1966 GNUNET_MQ_hd_fixed_size (client_replay_request,
1967 GNUNET_MESSAGE_TYPE_MULTICAST_REPLAY_REQUEST,
1968 struct MulticastReplayRequestMessage,
1970 GNUNET_MQ_hd_var_size (client_replay_response,
1971 GNUNET_MESSAGE_TYPE_MULTICAST_REPLAY_RESPONSE,
1972 struct MulticastReplayResponseMessage,
1974 GNUNET_MQ_hd_var_size (client_replay_response_end,
1975 GNUNET_MESSAGE_TYPE_MULTICAST_REPLAY_RESPONSE_END,
1976 struct MulticastReplayResponseMessage,
1979 /* end of gnunet-service-multicast.c */