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>
52 #include <trp_ptable.h>
53 #include <trp_rtable.h>
54 #include <tr_config.h>
60 /* data for event callbacks */
61 struct tr_trps_event_cookie {
67 /* callback to schedule event to process messages */
68 static void tr_trps_mq_cb(TR_MQ *mq, void *arg)
70 struct event *mq_ev=(struct event *)arg;
71 event_active(mq_ev, 0, 0);
74 static void msg_free_helper(void *p)
76 tr_msg_free_decoded((TR_MSG *)p);
79 static void tr_free_name_helper(void *arg)
81 tr_free_name((TR_NAME *)arg);
84 /* takes a TR_MSG and puts it in a TR_MQ_MSG for processing by the main thread */
85 static TRP_RC tr_trps_msg_handler(TRPS_INSTANCE *trps,
89 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
90 TR_MQ_MSG *mq_msg=NULL;
92 /* n.b., conn is available here, but do not hold onto the reference
93 * because it may be cleaned up if the originating connection goes
94 * down before the message is processed */
95 mq_msg=tr_mq_msg_new(tmp_ctx, TR_MQMSG_MSG_RECEIVED, TR_MQ_PRIO_NORMAL);
99 tr_mq_msg_set_payload(mq_msg, (void *)tr_msg, msg_free_helper);
100 trps_mq_add(trps, mq_msg);
101 talloc_free(tmp_ctx); /* cleans up the message if it did not get appended correctly */
106 static int tr_trps_gss_handler(gss_name_t client_name, gss_buffer_t gss_name,
109 struct tr_trps_event_cookie *cookie=(struct tr_trps_event_cookie *)cookie_in;
110 TRPS_INSTANCE *trps = cookie->trps;
111 TR_CFG_MGR *cfg_mgr = cookie->cfg_mgr;
112 TR_NAME name={gss_name->value, gss_name->length};
114 tr_debug("tr_trps_gss_handler()");
116 if ((!client_name) || (!gss_name) || (!trps) || (!cfg_mgr)) {
117 tr_debug("tr_trps_gss_handler: Bad parameters.");
121 /* look up the TRPS peer matching the GSS name */
122 if (NULL==trps_get_peer_by_gssname(trps, &name)) {
123 tr_warning("tr_trps_gss_handler: Connection attempt from unknown peer (GSS name: %.*s).", name.len, name.buf);
127 tr_debug("Client's GSS Name: %.*s", name.len, name.buf);
131 /* data passed to thread */
132 struct trps_thread_data {
133 TRP_CONNECTION *conn;
136 /* thread to handle GSS connections from peers */
137 static void *tr_trps_thread(void *arg)
139 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
140 struct trps_thread_data *thread_data=talloc_get_type_abort(arg, struct trps_thread_data);
141 TRP_CONNECTION *conn=thread_data->conn;
142 TRPS_INSTANCE *trps=thread_data->trps;
145 tr_debug("tr_trps_thread: started");
146 if (trps_authorize_connection(trps, conn)!=TRP_SUCCESS)
149 msg=tr_mq_msg_new(tmp_ctx, TR_MQMSG_TRPS_CONNECTED, TR_MQ_PRIO_HIGH);
150 tr_mq_msg_set_payload(msg, (void *)tr_dup_name(trp_connection_get_peer(conn)), tr_free_name_helper);
152 tr_err("tr_trps_thread: error allocating TR_MQ_MSG");
155 trps_mq_add(trps, msg); /* steals msg context */
158 trps_handle_connection(trps, conn);
161 msg=tr_mq_msg_new(tmp_ctx, TR_MQMSG_TRPS_DISCONNECTED, TR_MQ_PRIO_HIGH);
162 tr_mq_msg_set_payload(msg, (void *)conn, NULL); /* do not pass a free routine */
164 tr_err("tr_trps_thread: error allocating TR_MQ_MSG");
166 trps_mq_add(trps, msg);
167 tr_debug("tr_trps_thread: exit");
168 talloc_free(tmp_ctx);
172 /* called when a connection to the TRPS port is received */
173 static void tr_trps_event_cb(int listener, short event, void *arg)
175 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
176 TRPS_INSTANCE *trps = talloc_get_type_abort(arg, TRPS_INSTANCE); /* aborts on wrong type */
177 TRP_CONNECTION *conn=NULL;
178 TR_NAME *gssname=NULL;
180 struct trps_thread_data *thread_data=NULL;
182 if (0==(event & EV_READ)) {
183 tr_debug("tr_trps_event_cb: unexpected event on TRPS socket (event=0x%X)", event);
185 /* create a thread to handle this connection */
186 if (asprintf(&name, "trustrouter@%s", trps->hostname)==-1) {
189 gssname=tr_new_name(name);
190 free(name); name=NULL;
191 conn=trp_connection_accept(tmp_ctx, listener, gssname);
193 /* need to monitor this fd and trigger events when read becomes possible */
194 thread_data=talloc(conn, struct trps_thread_data);
195 if (thread_data==NULL) {
196 tr_err("tr_trps_event_cb: unable to allocate trps_thread_data");
197 talloc_free(tmp_ctx);
200 thread_data->conn=conn;
201 thread_data->trps=trps;
202 trps_add_connection(trps, conn); /* remember the connection */
203 pthread_create(trp_connection_get_thread(conn), NULL, tr_trps_thread, thread_data);
208 talloc_free(tmp_ctx);
211 static void tr_trps_cleanup_conn(TRPS_INSTANCE *trps, TRP_CONNECTION *conn)
213 /* everything belonging to the thread is in the TRP_CONNECTION
214 * associated with it */
215 tr_debug("tr_trps_cleanup_conn: freeing %p", conn);
216 pthread_join(*trp_connection_get_thread(conn), NULL);
217 trps_remove_connection(trps, conn);
218 trp_connection_free(conn);
219 tr_debug("tr_trps_cleanup_conn: deleted connection");
222 static void tr_trps_cleanup_trpc(TRPS_INSTANCE *trps, TRPC_INSTANCE *trpc)
224 pthread_join(*trp_connection_get_thread(trpc_get_conn(trpc)), NULL);
225 trps_remove_trpc(trps, trpc);
227 tr_debug("tr_trps_cleanup_trpc: deleted connection");
231 * Get a dynamically allocated string with a description of the route table.
232 * Caller must free the string using talloc_free().
234 * @param memctx talloc context for the string
235 * @param trps trps instance containing the route table
236 * @return pointer to the output, or NULL on error
238 static char *tr_trps_route_table_to_str(TALLOC_CTX *memctx, TRPS_INSTANCE *trps)
240 return trp_rtable_to_str(memctx, trps->rtable, " | ", NULL);
244 * Get a dynamically allocated string with a description of the community table.
245 * Caller must free the string using talloc_free().
247 * @param memctx talloc context for the string
248 * @param trps trps instance containing the community table
249 * @return pointer to the output, or NULL on error
251 static char *tr_trps_comm_table_to_str(TALLOC_CTX *memctx, TRPS_INSTANCE *trps)
253 return tr_comm_table_to_str(memctx, trps->ctable);
257 * Event handler to process TRP messages from connection threads. These
258 * are added to the message queue (mq) in tr_trps_msg_handler(), which
259 * runs in the other threads.
261 * @param socket Ignored
262 * @param event Ignored
263 * @param arg Pointer to the TRPS_INSTANCE
265 static void tr_trps_process_mq(int socket, short event, void *arg)
267 TRPS_INSTANCE *trps=talloc_get_type_abort(arg, TRPS_INSTANCE);
271 msg=trps_mq_pop(trps);
273 s=tr_mq_msg_get_message(msg);
274 if (0==strcmp(s, TR_MQMSG_TRPS_CONNECTED)) {
275 TR_NAME *gssname=(TR_NAME *)tr_mq_msg_get_payload(msg);
276 TRP_PEER *peer=trps_get_peer_by_gssname(trps, gssname);
278 tr_err("tr_trps_process_mq: incoming connection from unknown peer (%s) reported.", gssname->buf);
280 trp_peer_set_incoming_status(peer, PEER_CONNECTED);
281 tr_err("tr_trps_process_mq: incoming connection from %s established.", gssname->buf);
284 else if (0==strcmp(s, TR_MQMSG_TRPS_DISCONNECTED)) {
285 TRP_CONNECTION *conn=talloc_get_type_abort(tr_mq_msg_get_payload(msg), TRP_CONNECTION);
286 TR_NAME *gssname=trp_connection_get_gssname(conn);
287 TRP_PEER *peer=trps_get_peer_by_gssname(trps, gssname);
289 tr_err("tr_trps_process_mq: incoming connection from unknown peer (%s) lost.",
290 trp_connection_get_gssname(conn)->buf);
292 trp_peer_set_incoming_status(peer, PEER_DISCONNECTED);
293 tr_trps_cleanup_conn(trps, conn);
294 tr_err("tr_trps_process_mq: incoming connection from %s lost.", gssname->buf);
297 else if (0==strcmp(s, TR_MQMSG_TRPC_CONNECTED)) {
298 TR_NAME *svcname=(TR_NAME *)tr_mq_msg_get_payload(msg);
299 TRP_PEER *peer=trps_get_peer_by_servicename(trps, svcname);
301 tr_err("tr_trps_process_mq: outgoing connection to unknown peer (%s) reported.", svcname->buf);
303 trp_peer_set_outgoing_status(peer, PEER_CONNECTED);
304 tr_err("tr_trps_process_mq: outgoing connection to %s established.", svcname->buf);
307 else if (0==strcmp(s, TR_MQMSG_TRPC_DISCONNECTED)) {
308 /* trpc connection died */
309 TRPC_INSTANCE *trpc=talloc_get_type_abort(tr_mq_msg_get_payload(msg), TRPC_INSTANCE);
310 TR_NAME *gssname=trpc_get_gssname(trpc);
311 TRP_PEER *peer=trps_get_peer_by_servicename(trps, gssname);
313 tr_err("tr_trps_process_mq: outgoing connection to unknown peer (%s) lost.", gssname->buf);
315 trp_peer_set_outgoing_status(peer, PEER_DISCONNECTED);
316 tr_err("tr_trps_process_mq: outgoing connection to %s lost.", gssname->buf);
317 tr_trps_cleanup_trpc(trps, trpc);
321 else if (0==strcmp(s, TR_MQMSG_MSG_RECEIVED)) {
322 if (trps_handle_tr_msg(trps, tr_mq_msg_get_payload(msg))!=TRP_SUCCESS)
323 tr_notice("tr_trps_process_mq: error handling message.");
326 tr_notice("tr_trps_process_mq: unknown message '%s' received.", tr_mq_msg_get_message(msg));
329 msg=trps_mq_pop(trps);
333 static void tr_trps_update(int listener, short event, void *arg)
335 struct tr_trps_event_cookie *cookie=talloc_get_type_abort(arg, struct tr_trps_event_cookie);
336 TRPS_INSTANCE *trps=cookie->trps;
337 struct event *ev=cookie->ev;
339 tr_debug("tr_trps_update: sending scheduled route/community updates.");
340 trps_update(trps, TRP_UPDATE_SCHEDULED);
341 event_add(ev, &(trps->update_interval));
342 tr_debug("tr_trps_update: update interval=%d", trps->update_interval.tv_sec);
345 static void tr_trps_sweep(int listener, short event, void *arg)
347 struct tr_trps_event_cookie *cookie=talloc_get_type_abort(arg, struct tr_trps_event_cookie);
348 TRPS_INSTANCE *trps=cookie->trps;
349 struct event *ev=cookie->ev;
350 char *table_str=NULL;
352 tr_debug("tr_trps_sweep: sweeping routes.");
353 trps_sweep_routes(trps);
354 tr_debug("tr_trps_sweep: sweeping communities.");
355 trps_sweep_ctable(trps);
356 table_str=tr_trps_route_table_to_str(NULL, trps);
357 if (table_str!=NULL) {
359 talloc_free(table_str);
362 table_str=tr_trps_comm_table_to_str(NULL, trps);
363 if (table_str!=NULL) {
365 talloc_free(table_str);
367 /* schedule the event to run again */
368 event_add(ev, &(trps->sweep_interval));
371 static void tr_connection_update(int listener, short event, void *arg)
373 struct tr_trps_event_cookie *cookie=talloc_get_type_abort(arg, struct tr_trps_event_cookie);
374 TRPS_INSTANCE *trps=cookie->trps;
375 struct event *ev=cookie->ev;
377 tr_debug("tr_connection_update: checking peer connections.");
378 tr_connect_to_peers(trps, ev);
379 /* schedule the event to run again */
380 event_add(ev, &(trps->connect_interval));
383 static int tr_trps_events_destructor(void *obj)
385 TR_TRPS_EVENTS *ev=talloc_get_type_abort(obj, TR_TRPS_EVENTS);
387 event_free(ev->mq_ev);
388 if (ev->connect_ev!=NULL)
389 event_free(ev->connect_ev);
390 if (ev->update_ev!=NULL)
391 event_free(ev->update_ev);
392 if (ev->sweep_ev!=NULL)
393 event_free(ev->sweep_ev);
396 static TR_TRPS_EVENTS *tr_trps_events_new(TALLOC_CTX *mem_ctx)
398 TR_TRPS_EVENTS *ev=talloc(mem_ctx, TR_TRPS_EVENTS);
400 ev->listen_ev=talloc(ev, struct tr_socket_event);
405 if (ev->listen_ev==NULL) {
409 talloc_set_destructor((void *)ev, tr_trps_events_destructor);
415 static void tr_trps_events_free(TR_TRPS_EVENTS *ev)
420 /* Configure the trps instance and set up its event handler.
421 * Fills in trps_ev, which should be allocated by caller. */
422 TRP_RC tr_trps_event_init(struct event_base *base, TR_INSTANCE *tr)
424 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
425 struct tr_socket_event *listen_ev=NULL;
426 struct tr_trps_event_cookie *trps_cookie=NULL;
427 struct tr_trps_event_cookie *connection_cookie=NULL;
428 struct tr_trps_event_cookie *update_cookie=NULL;
429 struct tr_trps_event_cookie *sweep_cookie=NULL;
430 struct timeval zero_time={0,0};
431 TRP_RC retval=TRP_ERROR;
434 if (tr->events != NULL) {
435 tr_notice("tr_trps_event_init: tr->events was not null. Freeing before reallocating..");
436 tr_trps_events_free(tr->events);
439 tr->events=tr_trps_events_new(tmp_ctx);
440 if (tr->events == NULL) {
441 tr_debug("tr_trps_event_init: unable to allocate event handles.");
446 /* get convenient handles */
447 listen_ev=tr->events->listen_ev;
449 /* Create the cookie for callbacks. It will end up part of the trps context, so it will
450 * be cleaned up when trps is freed by talloc_free. */
451 trps_cookie=talloc(tr->events, struct tr_trps_event_cookie);
452 if (trps_cookie == NULL) {
453 tr_debug("tr_trps_event_init: Unable to allocate trps_cookie.");
455 tr_trps_events_free(tr->events);
459 trps_cookie->trps=tr->trps;
460 trps_cookie->cfg_mgr=tr->cfg_mgr;
462 /* get a trps listener */
463 listen_ev->n_sock_fd=trps_get_listener(tr->trps,
466 tr->cfg_mgr->active->internal->hostname,
467 tr->cfg_mgr->active->internal->trps_port,
471 if (listen_ev->n_sock_fd==0) {
472 tr_crit("Error opening TRP server socket.");
474 tr_trps_events_free(tr->events);
479 /* Set up events for the sockets */
480 for (ii=0; ii<listen_ev->n_sock_fd; ii++) {
481 listen_ev->ev[ii]=event_new(base,
482 listen_ev->sock_fd[ii],
486 event_add(listen_ev->ev[ii], NULL);
489 /* now set up message queue processing event, only triggered by
491 tr->events->mq_ev=event_new(base,
496 tr_mq_set_notify_cb(tr->trps->mq, tr_trps_mq_cb, tr->events->mq_ev);
498 /* now set up the peer connection timer event */
499 connection_cookie=talloc(tr->events, struct tr_trps_event_cookie);
500 if (connection_cookie == NULL) {
501 tr_debug("tr_trps_event_init: Unable to allocate connection_cookie.");
503 tr_trps_events_free(tr->events);
507 connection_cookie->trps=tr->trps;
508 connection_cookie->cfg_mgr=tr->cfg_mgr;
509 tr->events->connect_ev=event_new(base, -1, EV_TIMEOUT, tr_connection_update, (void *)connection_cookie);
510 connection_cookie->ev=tr->events->connect_ev; /* in case it needs to frob the event */
511 /* The first time, do this immediately. Thereafter, it will retrigger every trps->connect_interval */
512 event_add(tr->events->connect_ev, &zero_time);
514 /* now set up the route update timer event */
515 update_cookie=talloc(tr->events, struct tr_trps_event_cookie);
516 if (update_cookie == NULL) {
517 tr_debug("tr_trps_event_init: Unable to allocate update_cookie.");
519 tr_trps_events_free(tr->events);
523 update_cookie->trps=tr->trps;
524 update_cookie->cfg_mgr=tr->cfg_mgr;
525 tr->events->update_ev=event_new(base, -1, EV_TIMEOUT, tr_trps_update, (void *)update_cookie);
526 update_cookie->ev=tr->events->update_ev; /* in case it needs to frob the event */
527 event_add(tr->events->update_ev, &(tr->trps->update_interval));
529 /* now set up the route table sweep timer event */
530 sweep_cookie=talloc(tr->events, struct tr_trps_event_cookie);
531 if (sweep_cookie == NULL) {
532 tr_debug("tr_trps_event_init: Unable to allocate sweep_cookie.");
534 tr_trps_events_free(tr->events);
538 sweep_cookie->trps=tr->trps;
539 sweep_cookie->cfg_mgr=tr->cfg_mgr;
540 tr->events->sweep_ev=event_new(base, -1, EV_TIMEOUT, tr_trps_sweep, (void *)sweep_cookie);
541 sweep_cookie->ev=tr->events->sweep_ev; /* in case it needs to frob the event */
542 event_add(tr->events->sweep_ev, &(tr->trps->sweep_interval));
544 talloc_steal(tr, tr->events);
548 talloc_free(tmp_ctx);
553 struct trpc_notify_cb_data {
556 pthread_mutex_t mutex;
559 static void tr_trpc_mq_cb(TR_MQ *mq, void *arg)
561 struct trpc_notify_cb_data *cb_data=(struct trpc_notify_cb_data *) arg;
562 pthread_mutex_lock(&(cb_data->mutex));
563 if (!cb_data->msg_ready) {
564 cb_data->msg_ready=1;
565 pthread_cond_signal(&(cb_data->cond));
567 pthread_mutex_unlock(&(cb_data->mutex));
570 /* data passed to thread */
571 struct trpc_thread_data {
575 static void *tr_trpc_thread(void *arg)
577 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
578 struct trpc_thread_data *thread_data=talloc_get_type_abort(arg, struct trpc_thread_data);
579 TRPC_INSTANCE *trpc=thread_data->trpc;
580 TRPS_INSTANCE *trps=thread_data->trps;
583 const char *msg_type=NULL;
584 char *encoded_msg=NULL;
585 TR_NAME *peer_gssname=NULL;
589 struct trpc_notify_cb_data cb_data={0,
590 PTHREAD_COND_INITIALIZER,
591 PTHREAD_MUTEX_INITIALIZER};
593 tr_debug("tr_trpc_thread: started");
595 /* set up the mq for receiving */
596 pthread_mutex_lock(&(cb_data.mutex)); /* hold this lock until we enter the main loop */
598 tr_mq_lock(trpc->mq);
599 tr_mq_set_notify_cb(trpc->mq, tr_trpc_mq_cb, (void *) &cb_data);
600 tr_mq_unlock(trpc->mq);
602 rc=trpc_connect(trpc);
603 if (rc!=TRP_SUCCESS) {
604 tr_notice("tr_trpc_thread: failed to initiate connection to %s:%d.",
605 trpc_get_server(trpc),
606 trpc_get_port(trpc));
608 peer_gssname=trp_connection_get_peer(trpc_get_conn(trpc));
609 if (peer_gssname==NULL) {
610 tr_err("tr_trpc_thread: could not duplicate peer_gssname.");
611 talloc_free(tmp_ctx);
614 tr_debug("tr_trpc_thread: connected to peer %s", peer_gssname->buf);
616 msg=tr_mq_msg_new(tmp_ctx, TR_MQMSG_TRPC_CONNECTED, TR_MQ_PRIO_HIGH);
617 tr_mq_msg_set_payload(msg, (void *)tr_dup_name(peer_gssname), tr_free_name_helper);
619 tr_err("tr_trpc_thread: error allocating TR_MQ_MSG");
620 talloc_free(tmp_ctx);
623 trps_mq_add(trps, msg); /* steals msg context */
628 pthread_cond_wait(&(cb_data.cond), &(cb_data.mutex));
629 /* verify the condition */
630 if (cb_data.msg_ready) {
631 for (msg=trpc_mq_pop(trpc),n_sent=0; msg!=NULL; msg=trpc_mq_pop(trpc),n_sent++) {
632 msg_type=tr_mq_msg_get_message(msg);
634 if (0==strcmp(msg_type, TR_MQMSG_ABORT)) {
638 else if (0==strcmp(msg_type, TR_MQMSG_TRPC_SEND)) {
639 encoded_msg=tr_mq_msg_get_payload(msg);
640 if (encoded_msg==NULL)
641 tr_notice("tr_trpc_thread: null outgoing TRP message.");
643 rc = trpc_send_msg(trpc, encoded_msg);
644 if (rc!=TRP_SUCCESS) {
645 tr_notice("tr_trpc_thread: trpc_send_msg failed.");
652 tr_notice("tr_trpc_thread: unknown message '%s' received.", msg_type);
657 tr_err("tr_trpc_thread: notified of msg, but queue empty");
659 tr_debug("tr_trpc_thread: sent %d messages.", n_sent);
664 tr_debug("tr_trpc_thread: exiting.");
665 msg=tr_mq_msg_new(tmp_ctx, TR_MQMSG_TRPC_DISCONNECTED, TR_MQ_PRIO_HIGH);
666 tr_mq_msg_set_payload(msg, (void *)trpc, NULL); /* do not pass a free routine */
668 tr_err("tr_trpc_thread: error allocating TR_MQ_MSG");
670 trps_mq_add(trps, msg);
672 trpc_mq_clear(trpc); /* clear any queued messages */
674 talloc_free(tmp_ctx);
678 /* convert an IDP realm into routing table entries. Outputs number in *n_routes */
679 static TRP_ROUTE **tr_make_local_routes(TALLOC_CTX *mem_ctx,
684 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
686 TRP_ROUTE *new_entry=NULL;
687 TRP_ROUTE **entries=NULL;
688 size_t n_comms=0, ii=0;
692 if ((realm==NULL) || (realm->origin!=TR_REALM_LOCAL))
696 for (comm=realm->apcs, n_comms=0; comm!=NULL; comm=comm->next,n_comms++) {}
698 entries=talloc_array(tmp_ctx, TRP_ROUTE *, n_comms);
699 for (comm=realm->apcs,ii=0; comm!=NULL; comm=comm->next, ii++) {
700 new_entry=trp_route_new(entries);
701 if (new_entry==NULL) {
702 tr_crit("tr_make_local_routes: unable to allocate entry.");
703 talloc_free(entries);
706 trp_route_set_comm(new_entry, tr_dup_name(comm->id));
707 trp_route_set_realm(new_entry, tr_dup_name(realm->realm_id));
708 trp_route_set_peer(new_entry, tr_new_name("")); /* no peer, it's us */
709 trp_route_set_metric(new_entry, 0);
710 trp_route_set_trust_router(new_entry, tr_new_name(trust_router));
711 trp_route_set_next_hop(new_entry, tr_new_name(""));
712 trp_route_set_local(new_entry, 1);
713 entries[ii]=new_entry;
716 talloc_steal(mem_ctx, entries);
719 talloc_free(tmp_ctx);
723 void tr_peer_status_change(TRP_PEER *peer, void *cookie)
725 TRPS_INSTANCE *trps=talloc_get_type_abort(cookie, TRPS_INSTANCE);
727 if (TRP_SUCCESS!=trps_wildcard_route_req(trps, trp_peer_get_servicename(peer)))
728 tr_err("tr_send_wildcard: error sending wildcard route request.");
731 /* starts a trpc thread to connect to server:port */
732 TRP_RC tr_trpc_initiate(TRPS_INSTANCE *trps, TRP_PEER *peer, struct event *ev)
734 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
735 TRPC_INSTANCE *trpc=NULL;
736 TRP_CONNECTION *conn=NULL;
737 struct trpc_thread_data *thread_data=NULL;
740 tr_debug("tr_trpc_initiate entered");
741 trpc=trpc_new(tmp_ctx);
743 tr_crit("tr_trpc_initiate: could not allocate TRPC_INSTANCE.");
747 tr_debug("tr_trpc_initiate: allocated trpc");
749 conn=trp_connection_new(trpc);
751 tr_crit("tr_trpc_initiate: could not allocate TRP_CONNECTION.");
756 trpc_set_conn(trpc, conn);
757 trpc_set_server(trpc, talloc_strdup(trpc, trp_peer_get_server(peer)));
758 trpc_set_port(trpc, trp_peer_get_port(peer));
759 trpc_set_gssname(trpc, trp_peer_dup_servicename(peer));
760 tr_debug("tr_trpc_initiate: allocated connection");
763 thread_data=talloc(trpc, struct trpc_thread_data);
764 if (thread_data==NULL) {
765 tr_crit("tr_trpc_initiate: could not allocate struct trpc_thread_data.");
769 thread_data->trpc=trpc;
770 thread_data->trps=trps;
772 trps_add_trpc(trps, trpc); /* must add before starting thread */
773 pthread_create(trp_connection_get_thread(conn), NULL, tr_trpc_thread, thread_data);
775 tr_debug("tr_trpc_initiate: started trpc thread");
779 talloc_free(tmp_ctx);
783 /* Add local routes to the route table. */
784 TRP_RC tr_add_local_routes(TRPS_INSTANCE *trps, TR_CFG *cfg)
786 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
787 TR_IDP_REALM *cur=NULL;
788 TRP_ROUTE **local_routes=NULL;
791 char *trust_router_name=talloc_asprintf(tmp_ctx, "%s:%d", cfg->internal->hostname, cfg->internal->trps_port);
793 /* determine our trust router name */
794 if (trust_router_name==NULL)
797 for (cur=cfg->ctable->idp_realms; cur!=NULL; cur=cur->next) {
798 local_routes=tr_make_local_routes(tmp_ctx, cur, trust_router_name, &n_routes);
799 for (ii=0; ii<n_routes; ii++)
800 trps_add_route(trps, local_routes[ii]);
802 talloc_free(local_routes);
807 talloc_free(tmp_ctx);
811 /* decide how often to attempt to connect to a peer */
812 static int tr_conn_attempt_due(TRPS_INSTANCE *trps, TRP_PEER *peer, struct timespec *when)
814 return 1; /* currently make an attempt every cycle */
817 /* open missing connections to peers */
818 TRP_RC tr_connect_to_peers(TRPS_INSTANCE *trps, struct event *ev)
820 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
821 TRP_PTABLE_ITER *iter=trp_ptable_iter_new(tmp_ctx);
823 struct timespec curtime={0,0};
826 if (clock_gettime(CLOCK_REALTIME, &curtime)) {
827 tr_err("tr_connect_to_peers: failed to read time.");
832 for (peer=trp_ptable_iter_first(iter, trps->ptable);
834 peer=trp_ptable_iter_next(iter))
836 if (trps_find_trpc(trps, peer)==NULL) {
837 TR_NAME *label=trp_peer_get_label(peer);
838 tr_debug("tr_connect_to_peers: %.*s missing connection.",
839 label->len, label->buf);
840 /* has it been long enough since we last tried? */
841 if (tr_conn_attempt_due(trps, peer, &curtime)) {
842 trp_peer_set_last_conn_attempt(peer, &curtime); /* we are trying again now */
843 if (tr_trpc_initiate(trps, peer, ev)!=TRP_SUCCESS) {
844 tr_err("tr_connect_to_peers: unable to initiate TRP connection to %s:%u.",
845 trp_peer_get_server(peer),
846 trp_peer_get_port(peer));
854 trp_ptable_iter_free(iter);
855 talloc_free(tmp_ctx);
860 /* Called by the config manager after a change to the active configuration.
861 * Updates configuration of objects that do not know about the config manager. */
862 void tr_config_changed(TR_CFG *new_cfg, void *cookie)
864 TR_INSTANCE *tr=talloc_get_type_abort(cookie, TR_INSTANCE);
865 TRPS_INSTANCE *trps=tr->trps;
866 char *table_str=NULL;
868 tr->cfgwatch->poll_interval.tv_sec=new_cfg->internal->cfg_poll_interval;
869 tr->cfgwatch->poll_interval.tv_usec=0;
871 tr->cfgwatch->settling_time.tv_sec=new_cfg->internal->cfg_settling_time;
872 tr->cfgwatch->settling_time.tv_usec=0;
874 /* These need to be updated */
875 tr->tids->hostname = new_cfg->internal->hostname;
876 tr->mons->hostname = new_cfg->internal->hostname;
878 trps_set_connect_interval(trps, new_cfg->internal->trp_connect_interval);
879 trps_set_update_interval(trps, new_cfg->internal->trp_update_interval);
880 trps_set_sweep_interval(trps, new_cfg->internal->trp_sweep_interval);
881 trps_set_ctable(trps, new_cfg->ctable);
882 trps_set_ptable(trps, new_cfg->peers);
883 trps_set_peer_status_callback(trps, tr_peer_status_change, (void *)trps);
884 trps_clear_rtable(trps); /* should we do this every time??? */
885 tr_add_local_routes(trps, new_cfg); /* should we do this every time??? */
886 trps_update_active_routes(trps); /* find new routes */
887 trps_update(trps, TRP_UPDATE_TRIGGERED); /* send any triggered routes */
888 tr_print_config(new_cfg);
889 table_str=tr_trps_route_table_to_str(NULL, trps);
890 if (table_str!=NULL) {
892 talloc_free(table_str);
894 table_str=tr_trps_comm_table_to_str(NULL, trps);
895 if (table_str!=NULL) {
897 talloc_free(table_str);