2 * Copyright (c) 2016, JANET(UK)
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of JANET(UK) nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
31 * OF THE POSSIBILITY OF SUCH DAMAGE.
38 #include <event2/event.h>
50 #include <trp_route.h>
51 #include <trp_internal.h>
53 #include <trp_ptable.h>
54 #include <trp_rtable.h>
55 #include <tr_config.h>
61 /* data for event callbacks */
62 struct tr_trps_event_cookie {
68 /* callback to schedule event to process messages */
69 static void tr_trps_mq_cb(TR_MQ *mq, void *arg)
71 struct event *mq_ev=(struct event *)arg;
72 event_active(mq_ev, 0, 0);
75 static void msg_free_helper(void *p)
77 tr_msg_free_decoded((TR_MSG *)p);
80 static void tr_free_name_helper(void *arg)
82 tr_free_name((TR_NAME *)arg);
85 /* takes a TR_MSG and puts it in a TR_MQ_MSG for processing by the main thread */
86 static TRP_RC tr_trps_msg_handler(TRPS_INSTANCE *trps,
90 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
91 TR_MQ_MSG *mq_msg=NULL;
93 /* n.b., conn is available here, but do not hold onto the reference
94 * because it may be cleaned up if the originating connection goes
95 * down before the message is processed */
96 mq_msg=tr_mq_msg_new(tmp_ctx, TR_MQMSG_MSG_RECEIVED, TR_MQ_PRIO_NORMAL);
100 tr_mq_msg_set_payload(mq_msg, (void *)tr_msg, msg_free_helper);
101 trps_mq_add(trps, mq_msg);
102 talloc_free(tmp_ctx); /* cleans up the message if it did not get appended correctly */
107 static int tr_trps_gss_handler(gss_name_t client_name, gss_buffer_t gss_name,
110 struct tr_trps_event_cookie *cookie=(struct tr_trps_event_cookie *)cookie_in;
111 TRPS_INSTANCE *trps = cookie->trps;
112 TR_CFG_MGR *cfg_mgr = cookie->cfg_mgr;
113 TR_NAME name={gss_name->value, gss_name->length};
115 tr_debug("tr_trps_gss_handler()");
117 if ((!client_name) || (!gss_name) || (!trps) || (!cfg_mgr)) {
118 tr_debug("tr_trps_gss_handler: Bad parameters.");
122 /* look up the TRPS peer matching the GSS name */
123 if (NULL==trps_get_peer_by_gssname(trps, &name)) {
124 tr_warning("tr_trps_gss_handler: Connection attempt from unknown peer (GSS name: %.*s).", name.len, name.buf);
128 tr_debug("Client's GSS Name: %.*s", name.len, name.buf);
132 /* data passed to thread */
133 struct trps_thread_data {
134 TRP_CONNECTION *conn;
137 /* thread to handle GSS connections from peers */
138 static void *tr_trps_thread(void *arg)
140 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
141 struct trps_thread_data *thread_data=talloc_get_type_abort(arg, struct trps_thread_data);
142 TRP_CONNECTION *conn=thread_data->conn;
143 TRPS_INSTANCE *trps=thread_data->trps;
146 tr_debug("tr_trps_thread: started");
147 if (trps_authorize_connection(trps, conn)!=TRP_SUCCESS)
150 msg=tr_mq_msg_new(tmp_ctx, TR_MQMSG_TRPS_CONNECTED, TR_MQ_PRIO_HIGH);
151 tr_mq_msg_set_payload(msg, (void *)tr_dup_name(trp_connection_get_peer(conn)), tr_free_name_helper);
153 tr_err("tr_trps_thread: error allocating TR_MQ_MSG");
156 trps_mq_add(trps, msg); /* steals msg context */
159 trps_handle_connection(trps, conn);
162 msg=tr_mq_msg_new(tmp_ctx, TR_MQMSG_TRPS_DISCONNECTED, TR_MQ_PRIO_HIGH);
163 tr_mq_msg_set_payload(msg, (void *)conn, NULL); /* do not pass a free routine */
165 tr_err("tr_trps_thread: error allocating TR_MQ_MSG");
167 trps_mq_add(trps, msg);
168 tr_debug("tr_trps_thread: exit");
169 talloc_free(tmp_ctx);
173 /* called when a connection to the TRPS port is received */
174 static void tr_trps_event_cb(int listener, short event, void *arg)
176 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
177 TRPS_INSTANCE *trps = talloc_get_type_abort(arg, TRPS_INSTANCE); /* aborts on wrong type */
178 TRP_CONNECTION *conn=NULL;
179 TR_NAME *gssname=NULL;
181 struct trps_thread_data *thread_data=NULL;
183 if (0==(event & EV_READ)) {
184 tr_debug("tr_trps_event_cb: unexpected event on TRPS socket (event=0x%X)", event);
186 /* create a thread to handle this connection */
187 if (asprintf(&name, "trustrouter@%s", trps->hostname)==-1) {
190 gssname=tr_new_name(name);
191 free(name); name=NULL;
192 conn=trp_connection_accept(tmp_ctx, listener, gssname);
194 /* need to monitor this fd and trigger events when read becomes possible */
195 thread_data=talloc(conn, struct trps_thread_data);
196 if (thread_data==NULL) {
197 tr_err("tr_trps_event_cb: unable to allocate trps_thread_data");
198 talloc_free(tmp_ctx);
201 thread_data->conn=conn;
202 thread_data->trps=trps;
203 trps_add_connection(trps, conn); /* remember the connection */
204 pthread_create(trp_connection_get_thread(conn), NULL, tr_trps_thread, thread_data);
209 talloc_free(tmp_ctx);
212 static void tr_trps_cleanup_conn(TRPS_INSTANCE *trps, TRP_CONNECTION *conn)
214 /* everything belonging to the thread is in the TRP_CONNECTION
215 * associated with it */
216 tr_debug("tr_trps_cleanup_conn: freeing %p", conn);
217 pthread_join(*trp_connection_get_thread(conn), NULL);
218 trps_remove_connection(trps, conn);
219 trp_connection_free(conn);
220 tr_debug("tr_trps_cleanup_conn: deleted connection");
223 static void tr_trps_cleanup_trpc(TRPS_INSTANCE *trps, TRPC_INSTANCE *trpc)
225 pthread_join(*trp_connection_get_thread(trpc_get_conn(trpc)), NULL);
226 trps_remove_trpc(trps, trpc);
228 tr_debug("tr_trps_cleanup_trpc: deleted connection");
232 * Get a dynamically allocated string with a description of the route table.
233 * Caller must free the string using talloc_free().
235 * @param memctx talloc context for the string
236 * @param trps trps instance containing the route table
237 * @return pointer to the output, or NULL on error
239 static char *tr_trps_route_table_to_str(TALLOC_CTX *memctx, TRPS_INSTANCE *trps)
241 return trp_rtable_to_str(memctx, trps->rtable, " | ", NULL);
245 * Get a dynamically allocated string with a description of the community table.
246 * Caller must free the string using talloc_free().
248 * @param memctx talloc context for the string
249 * @param trps trps instance containing the community table
250 * @return pointer to the output, or NULL on error
252 static char *tr_trps_comm_table_to_str(TALLOC_CTX *memctx, TRPS_INSTANCE *trps)
254 return tr_comm_table_to_str(memctx, trps->ctable);
258 * Event handler to process TRP messages from connection threads. These
259 * are added to the message queue (mq) in tr_trps_msg_handler(), which
260 * runs in the other threads.
262 * @param socket Ignored
263 * @param event Ignored
264 * @param arg Pointer to the TRPS_INSTANCE
266 static void tr_trps_process_mq(int socket, short event, void *arg)
268 TRPS_INSTANCE *trps=talloc_get_type_abort(arg, TRPS_INSTANCE);
272 msg=trps_mq_pop(trps);
274 s=tr_mq_msg_get_message(msg);
275 if (0==strcmp(s, TR_MQMSG_TRPS_CONNECTED)) {
276 TR_NAME *gssname=(TR_NAME *)tr_mq_msg_get_payload(msg);
277 TRP_PEER *peer=trps_get_peer_by_gssname(trps, gssname);
279 tr_err("tr_trps_process_mq: incoming connection from unknown peer (%s) reported.", gssname->buf);
281 trp_peer_set_incoming_status(peer, PEER_CONNECTED);
282 tr_err("tr_trps_process_mq: incoming connection from %s established.", gssname->buf);
285 else if (0==strcmp(s, TR_MQMSG_TRPS_DISCONNECTED)) {
286 TRP_CONNECTION *conn=talloc_get_type_abort(tr_mq_msg_get_payload(msg), TRP_CONNECTION);
287 TR_NAME *gssname=trp_connection_get_gssname(conn);
288 TRP_PEER *peer=trps_get_peer_by_gssname(trps, gssname);
290 tr_err("tr_trps_process_mq: incoming connection from unknown peer (%s) lost.",
291 trp_connection_get_gssname(conn)->buf);
293 trp_peer_set_incoming_status(peer, PEER_DISCONNECTED);
294 tr_trps_cleanup_conn(trps, conn);
295 tr_err("tr_trps_process_mq: incoming connection from %s lost.", gssname->buf);
298 else if (0==strcmp(s, TR_MQMSG_TRPC_CONNECTED)) {
299 TR_NAME *svcname=(TR_NAME *)tr_mq_msg_get_payload(msg);
300 TRP_PEER *peer=trps_get_peer_by_servicename(trps, svcname);
302 tr_err("tr_trps_process_mq: outgoing connection to unknown peer (%s) reported.", svcname->buf);
304 trp_peer_set_outgoing_status(peer, PEER_CONNECTED);
305 tr_err("tr_trps_process_mq: outgoing connection to %s established.", svcname->buf);
308 else if (0==strcmp(s, TR_MQMSG_TRPC_DISCONNECTED)) {
309 /* trpc connection died */
310 TRPC_INSTANCE *trpc=talloc_get_type_abort(tr_mq_msg_get_payload(msg), TRPC_INSTANCE);
311 TR_NAME *gssname=trpc_get_gssname(trpc);
312 TRP_PEER *peer=trps_get_peer_by_servicename(trps, gssname);
314 tr_err("tr_trps_process_mq: outgoing connection to unknown peer (%s) lost.", gssname->buf);
316 trp_peer_set_outgoing_status(peer, PEER_DISCONNECTED);
317 tr_err("tr_trps_process_mq: outgoing connection to %s lost.", gssname->buf);
318 tr_trps_cleanup_trpc(trps, trpc);
322 else if (0==strcmp(s, TR_MQMSG_MSG_RECEIVED)) {
323 if (trps_handle_tr_msg(trps, tr_mq_msg_get_payload(msg))!=TRP_SUCCESS)
324 tr_notice("tr_trps_process_mq: error handling message.");
327 tr_notice("tr_trps_process_mq: unknown message '%s' received.", tr_mq_msg_get_message(msg));
330 msg=trps_mq_pop(trps);
334 static void tr_trps_update(int listener, short event, void *arg)
336 struct tr_trps_event_cookie *cookie=talloc_get_type_abort(arg, struct tr_trps_event_cookie);
337 TRPS_INSTANCE *trps=cookie->trps;
338 struct event *ev=cookie->ev;
340 tr_debug("tr_trps_update: sending scheduled route/community updates.");
341 trps_update(trps, TRP_UPDATE_SCHEDULED);
342 event_add(ev, &(trps->update_interval));
343 tr_debug("tr_trps_update: update interval=%d", trps->update_interval.tv_sec);
346 static void tr_trps_sweep(int listener, short event, void *arg)
348 struct tr_trps_event_cookie *cookie=talloc_get_type_abort(arg, struct tr_trps_event_cookie);
349 TRPS_INSTANCE *trps=cookie->trps;
350 struct event *ev=cookie->ev;
351 char *table_str=NULL;
353 tr_debug("tr_trps_sweep: sweeping routes.");
354 trps_sweep_routes(trps);
355 tr_debug("tr_trps_sweep: sweeping communities.");
356 trps_sweep_ctable(trps);
357 table_str=tr_trps_route_table_to_str(NULL, trps);
358 if (table_str!=NULL) {
360 talloc_free(table_str);
363 table_str=tr_trps_comm_table_to_str(NULL, trps);
364 if (table_str!=NULL) {
366 talloc_free(table_str);
368 /* schedule the event to run again */
369 event_add(ev, &(trps->sweep_interval));
372 static void tr_connection_update(int listener, short event, void *arg)
374 struct tr_trps_event_cookie *cookie=talloc_get_type_abort(arg, struct tr_trps_event_cookie);
375 TRPS_INSTANCE *trps=cookie->trps;
376 struct event *ev=cookie->ev;
378 tr_debug("tr_connection_update: checking peer connections.");
379 tr_connect_to_peers(trps, ev);
380 /* schedule the event to run again */
381 event_add(ev, &(trps->connect_interval));
384 static int tr_trps_events_destructor(void *obj)
386 TR_TRPS_EVENTS *ev=talloc_get_type_abort(obj, TR_TRPS_EVENTS);
388 event_free(ev->mq_ev);
389 if (ev->connect_ev!=NULL)
390 event_free(ev->connect_ev);
391 if (ev->update_ev!=NULL)
392 event_free(ev->update_ev);
393 if (ev->sweep_ev!=NULL)
394 event_free(ev->sweep_ev);
397 static TR_TRPS_EVENTS *tr_trps_events_new(TALLOC_CTX *mem_ctx)
399 TR_TRPS_EVENTS *ev=talloc(mem_ctx, TR_TRPS_EVENTS);
401 ev->listen_ev=talloc(ev, struct tr_socket_event);
406 if (ev->listen_ev==NULL) {
410 talloc_set_destructor((void *)ev, tr_trps_events_destructor);
416 static void tr_trps_events_free(TR_TRPS_EVENTS *ev)
421 /* Configure the trps instance and set up its event handler.
422 * Fills in trps_ev, which should be allocated by caller. */
423 TRP_RC tr_trps_event_init(struct event_base *base, TR_INSTANCE *tr)
425 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
426 struct tr_socket_event *listen_ev=NULL;
427 struct tr_trps_event_cookie *trps_cookie=NULL;
428 struct tr_trps_event_cookie *connection_cookie=NULL;
429 struct tr_trps_event_cookie *update_cookie=NULL;
430 struct tr_trps_event_cookie *sweep_cookie=NULL;
431 struct timeval zero_time={0,0};
432 TRP_RC retval=TRP_ERROR;
435 if (tr->events != NULL) {
436 tr_notice("tr_trps_event_init: tr->events was not null. Freeing before reallocating..");
437 tr_trps_events_free(tr->events);
440 tr->events=tr_trps_events_new(tmp_ctx);
441 if (tr->events == NULL) {
442 tr_debug("tr_trps_event_init: unable to allocate event handles.");
447 /* get convenient handles */
448 listen_ev=tr->events->listen_ev;
450 /* Create the cookie for callbacks. It will end up part of the trps context, so it will
451 * be cleaned up when trps is freed by talloc_free. */
452 trps_cookie=talloc(tr->events, struct tr_trps_event_cookie);
453 if (trps_cookie == NULL) {
454 tr_debug("tr_trps_event_init: Unable to allocate trps_cookie.");
456 tr_trps_events_free(tr->events);
460 trps_cookie->trps=tr->trps;
461 trps_cookie->cfg_mgr=tr->cfg_mgr;
463 /* get a trps listener */
464 listen_ev->n_sock_fd=trps_get_listener(tr->trps,
467 tr->cfg_mgr->active->internal->hostname,
468 tr->cfg_mgr->active->internal->trps_port,
472 if (listen_ev->n_sock_fd==0) {
473 tr_crit("Error opening TRP server socket.");
475 tr_trps_events_free(tr->events);
480 /* Set up events for the sockets */
481 for (ii=0; ii<listen_ev->n_sock_fd; ii++) {
482 listen_ev->ev[ii]=event_new(base,
483 listen_ev->sock_fd[ii],
487 event_add(listen_ev->ev[ii], NULL);
490 /* now set up message queue processing event, only triggered by
492 tr->events->mq_ev=event_new(base,
497 tr_mq_set_notify_cb(tr->trps->mq, tr_trps_mq_cb, tr->events->mq_ev);
499 /* now set up the peer connection timer event */
500 connection_cookie=talloc(tr->events, struct tr_trps_event_cookie);
501 if (connection_cookie == NULL) {
502 tr_debug("tr_trps_event_init: Unable to allocate connection_cookie.");
504 tr_trps_events_free(tr->events);
508 connection_cookie->trps=tr->trps;
509 connection_cookie->cfg_mgr=tr->cfg_mgr;
510 tr->events->connect_ev=event_new(base, -1, EV_TIMEOUT, tr_connection_update, (void *)connection_cookie);
511 connection_cookie->ev=tr->events->connect_ev; /* in case it needs to frob the event */
512 /* The first time, do this immediately. Thereafter, it will retrigger every trps->connect_interval */
513 event_add(tr->events->connect_ev, &zero_time);
515 /* now set up the route update timer event */
516 update_cookie=talloc(tr->events, struct tr_trps_event_cookie);
517 if (update_cookie == NULL) {
518 tr_debug("tr_trps_event_init: Unable to allocate update_cookie.");
520 tr_trps_events_free(tr->events);
524 update_cookie->trps=tr->trps;
525 update_cookie->cfg_mgr=tr->cfg_mgr;
526 tr->events->update_ev=event_new(base, -1, EV_TIMEOUT, tr_trps_update, (void *)update_cookie);
527 update_cookie->ev=tr->events->update_ev; /* in case it needs to frob the event */
528 event_add(tr->events->update_ev, &(tr->trps->update_interval));
530 /* now set up the route table sweep timer event */
531 sweep_cookie=talloc(tr->events, struct tr_trps_event_cookie);
532 if (sweep_cookie == NULL) {
533 tr_debug("tr_trps_event_init: Unable to allocate sweep_cookie.");
535 tr_trps_events_free(tr->events);
539 sweep_cookie->trps=tr->trps;
540 sweep_cookie->cfg_mgr=tr->cfg_mgr;
541 tr->events->sweep_ev=event_new(base, -1, EV_TIMEOUT, tr_trps_sweep, (void *)sweep_cookie);
542 sweep_cookie->ev=tr->events->sweep_ev; /* in case it needs to frob the event */
543 event_add(tr->events->sweep_ev, &(tr->trps->sweep_interval));
545 talloc_steal(tr, tr->events);
549 talloc_free(tmp_ctx);
554 struct trpc_notify_cb_data {
557 pthread_mutex_t mutex;
560 static void tr_trpc_mq_cb(TR_MQ *mq, void *arg)
562 struct trpc_notify_cb_data *cb_data=(struct trpc_notify_cb_data *) arg;
563 pthread_mutex_lock(&(cb_data->mutex));
564 if (!cb_data->msg_ready) {
565 cb_data->msg_ready=1;
566 pthread_cond_signal(&(cb_data->cond));
568 pthread_mutex_unlock(&(cb_data->mutex));
571 /* data passed to thread */
572 struct trpc_thread_data {
576 static void *tr_trpc_thread(void *arg)
578 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
579 struct trpc_thread_data *thread_data=talloc_get_type_abort(arg, struct trpc_thread_data);
580 TRPC_INSTANCE *trpc=thread_data->trpc;
581 TRPS_INSTANCE *trps=thread_data->trps;
584 const char *msg_type=NULL;
585 char *encoded_msg=NULL;
586 TR_NAME *peer_gssname=NULL;
590 struct trpc_notify_cb_data cb_data={0,
591 PTHREAD_COND_INITIALIZER,
592 PTHREAD_MUTEX_INITIALIZER};
594 tr_debug("tr_trpc_thread: started");
596 /* set up the mq for receiving */
597 pthread_mutex_lock(&(cb_data.mutex)); /* hold this lock until we enter the main loop */
599 tr_mq_lock(trpc->mq);
600 tr_mq_set_notify_cb(trpc->mq, tr_trpc_mq_cb, (void *) &cb_data);
601 tr_mq_unlock(trpc->mq);
603 rc=trpc_connect(trpc);
604 if (rc!=TRP_SUCCESS) {
605 tr_notice("tr_trpc_thread: failed to initiate connection to %s:%d.",
606 trpc_get_server(trpc),
607 trpc_get_port(trpc));
609 peer_gssname=trp_connection_get_peer(trpc_get_conn(trpc));
610 if (peer_gssname==NULL) {
611 tr_err("tr_trpc_thread: could not duplicate peer_gssname.");
612 talloc_free(tmp_ctx);
615 tr_debug("tr_trpc_thread: connected to peer %s", peer_gssname->buf);
617 msg=tr_mq_msg_new(tmp_ctx, TR_MQMSG_TRPC_CONNECTED, TR_MQ_PRIO_HIGH);
618 tr_mq_msg_set_payload(msg, (void *)tr_dup_name(peer_gssname), tr_free_name_helper);
620 tr_err("tr_trpc_thread: error allocating TR_MQ_MSG");
621 talloc_free(tmp_ctx);
624 trps_mq_add(trps, msg); /* steals msg context */
629 pthread_cond_wait(&(cb_data.cond), &(cb_data.mutex));
630 /* verify the condition */
631 if (cb_data.msg_ready) {
632 for (msg=trpc_mq_pop(trpc),n_sent=0; msg!=NULL; msg=trpc_mq_pop(trpc),n_sent++) {
633 msg_type=tr_mq_msg_get_message(msg);
635 if (0==strcmp(msg_type, TR_MQMSG_ABORT)) {
639 else if (0==strcmp(msg_type, TR_MQMSG_TRPC_SEND)) {
640 encoded_msg=tr_mq_msg_get_payload(msg);
641 if (encoded_msg==NULL)
642 tr_notice("tr_trpc_thread: null outgoing TRP message.");
644 rc = trpc_send_msg(trpc, encoded_msg);
645 if (rc!=TRP_SUCCESS) {
646 tr_notice("tr_trpc_thread: trpc_send_msg failed.");
653 tr_notice("tr_trpc_thread: unknown message '%s' received.", msg_type);
658 tr_err("tr_trpc_thread: notified of msg, but queue empty");
660 tr_debug("tr_trpc_thread: sent %d messages.", n_sent);
665 tr_debug("tr_trpc_thread: exiting.");
666 msg=tr_mq_msg_new(tmp_ctx, TR_MQMSG_TRPC_DISCONNECTED, TR_MQ_PRIO_HIGH);
667 tr_mq_msg_set_payload(msg, (void *)trpc, NULL); /* do not pass a free routine */
669 tr_err("tr_trpc_thread: error allocating TR_MQ_MSG");
671 trps_mq_add(trps, msg);
673 trpc_mq_clear(trpc); /* clear any queued messages */
675 talloc_free(tmp_ctx);
679 /* convert an IDP realm into routing table entries. Outputs number in *n_routes */
680 static TRP_ROUTE **tr_make_local_routes(TALLOC_CTX *mem_ctx,
685 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
687 TRP_ROUTE *new_entry=NULL;
688 TRP_ROUTE **entries=NULL;
689 size_t n_comms=0, ii=0;
693 if ((realm==NULL) || (realm->origin!=TR_REALM_LOCAL))
697 for (comm=realm->apcs, n_comms=0; comm!=NULL; comm=comm->next,n_comms++) {}
699 entries=talloc_array(tmp_ctx, TRP_ROUTE *, n_comms);
700 for (comm=realm->apcs,ii=0; comm!=NULL; comm=comm->next, ii++) {
701 new_entry=trp_route_new(entries);
702 if (new_entry==NULL) {
703 tr_crit("tr_make_local_routes: unable to allocate entry.");
704 talloc_free(entries);
707 trp_route_set_comm(new_entry, tr_dup_name(comm->id));
708 trp_route_set_realm(new_entry, tr_dup_name(realm->realm_id));
709 trp_route_set_peer(new_entry, tr_new_name("")); /* no peer, it's us */
710 trp_route_set_metric(new_entry, 0);
711 trp_route_set_trust_router(new_entry, tr_new_name(trust_router));
712 trp_route_set_next_hop(new_entry, tr_new_name(""));
713 trp_route_set_local(new_entry, 1);
714 entries[ii]=new_entry;
717 talloc_steal(mem_ctx, entries);
720 talloc_free(tmp_ctx);
724 void tr_peer_status_change(TRP_PEER *peer, void *cookie)
726 TRPS_INSTANCE *trps=talloc_get_type_abort(cookie, TRPS_INSTANCE);
728 if (TRP_SUCCESS!=trps_wildcard_route_req(trps, trp_peer_get_servicename(peer)))
729 tr_err("tr_send_wildcard: error sending wildcard route request.");
732 /* starts a trpc thread to connect to server:port */
733 TRP_RC tr_trpc_initiate(TRPS_INSTANCE *trps, TRP_PEER *peer, struct event *ev)
735 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
736 TRPC_INSTANCE *trpc=NULL;
737 TRP_CONNECTION *conn=NULL;
738 struct trpc_thread_data *thread_data=NULL;
741 tr_debug("tr_trpc_initiate entered");
742 trpc=trpc_new(tmp_ctx);
744 tr_crit("tr_trpc_initiate: could not allocate TRPC_INSTANCE.");
748 tr_debug("tr_trpc_initiate: allocated trpc");
750 conn=trp_connection_new(trpc);
752 tr_crit("tr_trpc_initiate: could not allocate TRP_CONNECTION.");
757 trpc_set_conn(trpc, conn);
758 trpc_set_server(trpc, talloc_strdup(trpc, trp_peer_get_server(peer)));
759 trpc_set_port(trpc, trp_peer_get_port(peer));
760 trpc_set_gssname(trpc, trp_peer_dup_servicename(peer));
761 tr_debug("tr_trpc_initiate: allocated connection");
764 thread_data=talloc(trpc, struct trpc_thread_data);
765 if (thread_data==NULL) {
766 tr_crit("tr_trpc_initiate: could not allocate struct trpc_thread_data.");
770 thread_data->trpc=trpc;
771 thread_data->trps=trps;
773 trps_add_trpc(trps, trpc); /* must add before starting thread */
774 pthread_create(trp_connection_get_thread(conn), NULL, tr_trpc_thread, thread_data);
776 tr_debug("tr_trpc_initiate: started trpc thread");
780 talloc_free(tmp_ctx);
784 /* Add local routes to the route table. */
785 TRP_RC tr_add_local_routes(TRPS_INSTANCE *trps, TR_CFG *cfg)
787 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
788 TR_IDP_REALM *cur=NULL;
789 TRP_ROUTE **local_routes=NULL;
792 char *trust_router_name=talloc_asprintf(tmp_ctx, "%s:%d", cfg->internal->hostname, cfg->internal->trps_port);
794 /* determine our trust router name */
795 if (trust_router_name==NULL)
798 for (cur=cfg->ctable->idp_realms; cur!=NULL; cur=cur->next) {
799 local_routes=tr_make_local_routes(tmp_ctx, cur, trust_router_name, &n_routes);
800 for (ii=0; ii<n_routes; ii++)
801 trps_add_route(trps, local_routes[ii]);
803 talloc_free(local_routes);
808 talloc_free(tmp_ctx);
812 /* decide how often to attempt to connect to a peer */
813 static int tr_conn_attempt_due(TRPS_INSTANCE *trps, TRP_PEER *peer, struct timespec *when)
815 return 1; /* currently make an attempt every cycle */
818 /* open missing connections to peers */
819 TRP_RC tr_connect_to_peers(TRPS_INSTANCE *trps, struct event *ev)
821 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
822 TRP_PTABLE_ITER *iter=trp_ptable_iter_new(tmp_ctx);
824 struct timespec curtime={0,0};
827 if (clock_gettime(CLOCK_REALTIME, &curtime)) {
828 tr_err("tr_connect_to_peers: failed to read time.");
833 for (peer=trp_ptable_iter_first(iter, trps->ptable);
835 peer=trp_ptable_iter_next(iter))
837 if (trps_find_trpc(trps, peer)==NULL) {
838 TR_NAME *label=trp_peer_get_label(peer);
839 tr_debug("tr_connect_to_peers: %.*s missing connection.",
840 label->len, label->buf);
841 /* has it been long enough since we last tried? */
842 if (tr_conn_attempt_due(trps, peer, &curtime)) {
843 trp_peer_set_last_conn_attempt(peer, &curtime); /* we are trying again now */
844 if (tr_trpc_initiate(trps, peer, ev)!=TRP_SUCCESS) {
845 tr_err("tr_connect_to_peers: unable to initiate TRP connection to %s:%u.",
846 trp_peer_get_server(peer),
847 trp_peer_get_port(peer));
855 trp_ptable_iter_free(iter);
856 talloc_free(tmp_ctx);
861 /* Called by the config manager after a change to the active configuration.
862 * Updates configuration of objects that do not know about the config manager. */
863 void tr_config_changed(TR_CFG *new_cfg, void *cookie)
865 TR_INSTANCE *tr=talloc_get_type_abort(cookie, TR_INSTANCE);
866 TRPS_INSTANCE *trps=tr->trps;
867 char *table_str=NULL;
869 tr->cfgwatch->poll_interval.tv_sec=new_cfg->internal->cfg_poll_interval;
870 tr->cfgwatch->poll_interval.tv_usec=0;
872 tr->cfgwatch->settling_time.tv_sec=new_cfg->internal->cfg_settling_time;
873 tr->cfgwatch->settling_time.tv_usec=0;
875 /* These need to be updated */
876 tr->tids->hostname = new_cfg->internal->hostname;
877 tr->mons->hostname = new_cfg->internal->hostname;
879 trps_set_connect_interval(trps, new_cfg->internal->trp_connect_interval);
880 trps_set_update_interval(trps, new_cfg->internal->trp_update_interval);
881 trps_set_sweep_interval(trps, new_cfg->internal->trp_sweep_interval);
882 trps_set_ctable(trps, new_cfg->ctable);
883 trps_set_ptable(trps, new_cfg->peers);
884 trps_set_peer_status_callback(trps, tr_peer_status_change, (void *)trps);
885 trps_clear_rtable(trps); /* should we do this every time??? */
886 tr_add_local_routes(trps, new_cfg); /* should we do this every time??? */
887 trps_update_active_routes(trps); /* find new routes */
888 trps_update(trps, TRP_UPDATE_TRIGGERED); /* send any triggered routes */
889 tr_print_config(new_cfg);
890 table_str=tr_trps_route_table_to_str(NULL, trps);
891 if (table_str!=NULL) {
893 talloc_free(table_str);
895 table_str=tr_trps_comm_table_to_str(NULL, trps);
896 if (table_str!=NULL) {
898 talloc_free(table_str);