2 * Copyright (c) 2016, JANET(UK)
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6 * modification, are permitted provided that the following conditions
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10 * notice, this list of conditions and the following disclaimer.
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37 #include <trust_router/tr_dh.h>
38 #include <tid_internal.h>
39 #include <tr_filter.h>
43 #include <tr_rp_client.h>
47 #include <trp_route.h>
48 #include <trp_internal.h>
49 #include <tr_config.h>
54 /* Structure to hold data for the tid response callback */
55 typedef struct tr_resp_cookie {
60 /* hold a tids instance and a config manager */
61 struct tr_tids_event_cookie {
67 static void tr_tidc_resp_handler(TIDC_INSTANCE *tidc,
72 TR_RESP_COOKIE *cookie=talloc_get_type_abort(resp_cookie, TR_RESP_COOKIE);
74 tr_debug("tr_tidc_resp_handler: Response received! Realm = %s, Community = %s, result = %s.",
77 (TID_SUCCESS==resp->result)?"success":"error");
79 if (resp->error_path!=NULL)
80 tr_debug("tr_tids_resp_handler: error_path is set.");
81 cookie->resp=tid_resp_dup(cookie, resp);
84 /* data for AAA req forwarding threads */
85 struct tr_tids_fwd_cookie {
87 pthread_mutex_t mutex; /* lock on the mq (separate from the locking within the mq, see below) */
88 TR_MQ *mq; /* messages from thread to main process; set to NULL to disable response */
89 TR_NAME *aaa_hostname;
91 TID_REQ *fwd_req; /* the req to duplicate */
94 static int tr_tids_fwd_cookie_destructor(void *obj)
96 struct tr_tids_fwd_cookie *c=talloc_get_type_abort(obj, struct tr_tids_fwd_cookie);
97 if (c->aaa_hostname!=NULL)
98 tr_free_name(c->aaa_hostname);
99 if (c->dh_params!=NULL)
100 tr_destroy_dh_params(c->dh_params);
104 /* Block until we get the lock, returns 0 on success.
105 * The mutex is used to protect changes to the mq pointer in
106 * a thread's cookie. The master thread sets this to null to indicate
107 * that it has abandoned the thread and the message queue is no longer
108 * valid. This is unrelated to the locking in the message queue
109 * implementation itself. */
110 static int tr_tids_fwd_get_mutex(struct tr_tids_fwd_cookie *cookie)
115 return (pthread_mutex_lock(&(cookie->mutex)));
118 static int tr_tids_fwd_release_mutex(struct tr_tids_fwd_cookie *cookie)
123 return (pthread_mutex_unlock(&(cookie->mutex)));
126 /* values for messages */
127 #define TR_TID_MQMSG_SUCCESS "tid success"
128 #define TR_TID_MQMSG_FAILURE "tid failure"
130 /* Thread main for sending and receiving a request to a single AAA server */
131 static void *tr_tids_req_fwd_thread(void *arg)
133 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
134 struct tr_tids_fwd_cookie *args=talloc_get_type_abort(arg, struct tr_tids_fwd_cookie);
135 TIDC_INSTANCE *tidc=tidc_create();
137 TR_RESP_COOKIE *cookie=NULL;
141 talloc_steal(tmp_ctx, args); /* take responsibility for the cookie */
144 talloc_steal(tmp_ctx, tidc);
146 /* create the cookie we will use for our response */
147 cookie=talloc(tmp_ctx, TR_RESP_COOKIE);
149 tr_notice("tr_tids_req_fwd_thread: unable to allocate response cookie.");
153 cookie->thread_id=args->thread_id;
154 tr_debug("tr_tids_req_fwd_thread: thread %d started.", cookie->thread_id);
156 /* Create a TID client instance */
158 tr_crit("tr_tids_req_fwd_thread: Unable to allocate TIDC instance.");
159 /*tids_send_err_response(tids, orig_req, "Memory allocation failure");*/
160 /* TODO: encode reason for failure */
165 /* Set-up TID connection */
166 if (-1==(args->fwd_req->conn = tidc_open_connection(tidc,
167 args->aaa_hostname->buf,
168 TID_PORT, /* TODO: make this configurable */
169 &(args->fwd_req->gssctx)))) {
170 tr_notice("tr_tids_req_fwd_thread: Error in tidc_open_connection.");
171 /* tids_send_err_response(tids, orig_req, "Can't open connection to next hop TIDS"); */
172 /* TODO: encode reason for failure */
176 tr_debug("tr_tids_req_fwd_thread: thread %d opened TID connection to %s.",
178 args->aaa_hostname->buf);
180 /* Send a TID request. */
181 if (0 > (rc = tidc_fwd_request(tidc, args->fwd_req, tr_tidc_resp_handler, (void *)cookie))) {
182 tr_notice("Error from tidc_fwd_request, rc = %d.", rc);
186 /* cookie->resp should now contain our copy of the response */
188 tr_debug("tr_tids_req_fwd_thread: thread %d received response.");
191 /* Notify parent thread of the response, if it's still listening. */
192 if (0!=tr_tids_fwd_get_mutex(args)) {
193 tr_notice("tr_tids_req_fwd_thread: thread %d unable to acquire mutex.", cookie->thread_id);
194 } else if (NULL!=args->mq) {
195 /* mq is still valid, so we can queue our response */
196 tr_debug("tr_tids_req_fwd_thread: thread %d using valid msg queue.", cookie->thread_id);
198 msg=tr_mq_msg_new(tmp_ctx, TR_TID_MQMSG_SUCCESS, TR_MQ_PRIO_NORMAL);
200 msg=tr_mq_msg_new(tmp_ctx, TR_TID_MQMSG_FAILURE, TR_MQ_PRIO_NORMAL);
203 tr_notice("tr_tids_req_fwd_thread: thread %d unable to allocate response msg.", cookie->thread_id);
205 tr_mq_msg_set_payload(msg, (void *)cookie, NULL);
207 talloc_steal(msg, cookie); /* attach this to the msg so we can forget about it */
208 tr_mq_add(args->mq, msg);
209 talloc_steal(NULL, args); /* take out of our tmp_ctx; master thread now responsible for freeing */
210 tr_debug("tr_tids_req_fwd_thread: thread %d queued response message.", cookie->thread_id);
211 if (0!=tr_tids_fwd_release_mutex(args))
212 tr_notice("tr_tids_req_fwd_thread: Error releasing mutex.");
215 talloc_free(tmp_ctx);
219 /* Merges r2 into r1 if they are compatible. */
220 static TID_RC tr_tids_merge_resps(TID_RESP *r1, TID_RESP *r2)
222 /* ensure these are compatible replies */
223 if ((r1->result!=TID_SUCCESS) || (r2->result!=TID_SUCCESS))
226 if ((0!=tr_name_cmp(r1->rp_realm, r2->rp_realm)) ||
227 (0!=tr_name_cmp(r1->realm, r2->realm)) ||
228 (0!=tr_name_cmp(r1->comm, r2->comm)))
231 tid_srvr_blk_add(r1->servers, tid_srvr_blk_dup(r1, r2->servers));
236 * Process a TID request
238 * Return value of -1 means to send a TID_ERROR response. Fill in resp->err_msg or it will
239 * be returned as a generic error.
247 static int tr_tids_req_handler(TIDS_INSTANCE *tids,
252 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
253 TR_AAA_SERVER *aaa_servers=NULL, *this_aaa=NULL;
256 TR_AAA_SERVER_ITER *aaa_iter=NULL;
257 pthread_t aaa_thread[TR_TID_MAX_AAA_SERVERS];
258 struct tr_tids_fwd_cookie *aaa_cookie[TR_TID_MAX_AAA_SERVERS]={NULL};
259 TID_RESP *aaa_resp[TR_TID_MAX_AAA_SERVERS]={NULL};
260 TR_RP_CLIENT *rp_client=NULL;
261 TR_RP_CLIENT_ITER *rpc_iter=NULL;
263 TID_REQ *fwd_req = NULL;
264 TR_COMM *cfg_comm = NULL;
265 TR_COMM *cfg_apc = NULL;
266 TR_FILTER_ACTION oaction = TR_FILTER_ACTION_REJECT;
267 time_t expiration_interval=0;
268 struct tr_tids_event_cookie *cookie=talloc_get_type_abort(cookie_in, struct tr_tids_event_cookie);
269 TR_CFG_MGR *cfg_mgr=cookie->cfg_mgr;
270 TRPS_INSTANCE *trps=cookie->trps;
271 TRP_ROUTE *route=NULL;
274 unsigned int n_responses=0;
275 unsigned int n_failed=0;
276 struct timespec ts_abort={0};
277 unsigned int resp_frac_numer=cfg_mgr->active->internal->tid_resp_numer;
278 unsigned int resp_frac_denom=cfg_mgr->active->internal->tid_resp_denom;
279 TR_RESP_COOKIE *payload=NULL;
280 TR_FILTER_TARGET *target=NULL;
284 if ((!tids) || (!orig_req) || (!resp)) {
285 tr_debug("tr_tids_req_handler: Bad parameters");
290 tr_debug("tr_tids_req_handler: Request received (conn = %d)! Realm = %s, Comm = %s", orig_req->conn,
291 orig_req->realm->buf, orig_req->comm->buf);
293 /* Duplicate the request, so we can modify and forward it */
294 if (NULL == (fwd_req=tid_dup_req(orig_req))) {
295 tr_debug("tr_tids_req_handler: Unable to duplicate request.");
296 retval=-1; /* response will be a generic internal error */
299 talloc_steal(tmp_ctx, fwd_req);
301 if (NULL == (cfg_comm=tr_comm_table_find_comm(cfg_mgr->active->ctable, orig_req->comm))) {
302 tr_notice("tr_tids_req_hander: Request for unknown comm: %s.", orig_req->comm->buf);
303 tid_resp_set_err_msg(resp, tr_new_name("Unknown community"));
308 /* We now need to apply the filters associated with the RP client handing us the request.
309 * It is possible (or even likely) that more than one client is associated with the GSS
310 * name we got from the authentication. We will apply all of them in an arbitrary order.
311 * For this to result in well-defined behavior, either only accept or only reject filter
312 * lines should be used, or a unique GSS name must be given for each RP realm. */
314 if (!tids->gss_name) {
315 tr_notice("tr_tids_req_handler: No GSS name for incoming request.");
316 tid_resp_set_err_msg(resp, tr_new_name("No GSS name for request"));
321 /* Keep original constraints, may add more from the filter. These will be added to orig_req as
322 * well. Need to verify that this is acceptable behavior, but it's what we've always done. */
323 fwd_req->cons=orig_req->cons;
325 target=tr_filter_target_tid_req(tmp_ctx, orig_req);
327 tr_crit("tid_req_handler: Unable to allocate filter target, cannot apply filter!");
328 tid_resp_set_err_msg(resp, tr_new_name("Incoming TID request filter error"));
333 rpc_iter=tr_rp_client_iter_new(tmp_ctx);
334 if (rpc_iter==NULL) {
335 tr_err("tid_req_handler: Unable to allocate RP client iterator.");
339 for (rp_client=tr_rp_client_iter_first(rpc_iter, cfg_mgr->active->rp_clients);
341 rp_client=tr_rp_client_iter_next(rpc_iter)) {
343 if (!tr_gss_names_matches(rp_client->gss_names, tids->gss_name))
344 continue; /* skip any that don't match the GSS name */
346 if (TR_FILTER_MATCH == tr_filter_apply(target,
347 tr_filter_set_get(rp_client->filters,
348 TR_FILTER_TYPE_TID_INBOUND),
351 break; /* Stop looking, oaction is set */
354 /* We get here whether or not a filter matched. If tr_filter_apply() doesn't match, it returns
355 * a default action of reject, so we don't have to check why we exited the loop. */
356 if (oaction != TR_FILTER_ACTION_ACCEPT) {
357 tr_notice("tr_tids_req_handler: Incoming TID request rejected by filter for GSS name", orig_req->rp_realm->buf);
358 tid_resp_set_err_msg(resp, tr_new_name("Incoming TID request filter error"));
363 /* Check that the rp_realm is a member of the community in the request */
364 if (NULL == tr_comm_find_rp(cfg_mgr->active->ctable, cfg_comm, orig_req->rp_realm)) {
365 tr_notice("tr_tids_req_handler: RP Realm (%s) not member of community (%s).", orig_req->rp_realm->buf, orig_req->comm->buf);
366 tid_resp_set_err_msg(resp, tr_new_name("RP COI membership error"));
371 /* Map the comm in the request from a COI to an APC, if needed */
372 if (TR_COMM_COI == cfg_comm->type) {
373 if (orig_req->orig_coi!=NULL) {
374 tr_notice("tr_tids_req_handler: community %s is COI but COI to APC mapping already occurred. Dropping request.",
375 orig_req->comm->buf);
376 tid_resp_set_err_msg(resp, tr_new_name("Second COI to APC mapping would result, permitted only once."));
381 tr_debug("tr_tids_req_handler: Community was a COI, switching.");
382 /* TBD -- In theory there can be more than one? How would that work? */
383 if ((!cfg_comm->apcs) || (!cfg_comm->apcs->id)) {
384 tr_notice("No valid APC for COI %s.", orig_req->comm->buf);
385 tid_resp_set_err_msg(resp, tr_new_name("No valid APC for community"));
389 apc = tr_dup_name(cfg_comm->apcs->id);
391 /* Check that the APC is configured */
392 if (NULL == (cfg_apc = tr_comm_table_find_comm(cfg_mgr->active->ctable, apc))) {
393 tr_notice("tr_tids_req_hander: Request for unknown comm: %s.", apc->buf);
394 tid_resp_set_err_msg(resp, tr_new_name("Unknown APC"));
400 fwd_req->orig_coi = orig_req->comm;
402 /* Check that rp_realm is a member of this APC */
403 if (NULL == (tr_comm_find_rp(cfg_mgr->active->ctable, cfg_apc, orig_req->rp_realm))) {
404 tr_notice("tr_tids_req_hander: RP Realm (%s) not member of community (%s).", orig_req->rp_realm->buf, orig_req->comm->buf);
405 tid_resp_set_err_msg(resp, tr_new_name("RP APC membership error"));
411 /* Look up the route for this community/realm. */
412 tr_debug("tr_tids_req_handler: looking up route.");
413 route=trps_get_selected_route(trps, orig_req->comm, orig_req->realm);
415 /* No route. Use default AAA servers if we have them. */
416 tr_debug("tr_tids_req_handler: No route for realm %s, defaulting.", orig_req->realm->buf);
417 if (NULL == (aaa_servers = tr_default_server_lookup(cfg_mgr->active->default_servers,
419 tr_notice("tr_tids_req_handler: No default AAA servers, discarded.");
420 tid_resp_set_err_msg(resp, tr_new_name("No path to AAA Server(s) for realm"));
426 /* Found a route. Determine the AAA servers or next hop address. */
427 tr_debug("tr_tids_req_handler: found route.");
428 if (trp_route_is_local(route)) {
429 tr_debug("tr_tids_req_handler: route is local.");
430 aaa_servers = tr_idp_aaa_server_lookup(cfg_mgr->active->ctable->idp_realms,
435 tr_debug("tr_tids_req_handler: route not local.");
436 aaa_servers = tr_aaa_server_new(tmp_ctx, trp_route_get_next_hop(route));
440 /* Since we aren't defaulting, check idp coi and apc membership */
441 if (NULL == (tr_comm_find_idp(cfg_mgr->active->ctable, cfg_comm, fwd_req->realm))) {
442 tr_notice("tr_tids_req_handler: IDP Realm (%s) not member of community (%s).", orig_req->realm->buf, orig_req->comm->buf);
443 tid_resp_set_err_msg(resp, tr_new_name("IDP community membership error"));
447 if ( cfg_apc && (NULL == (tr_comm_find_idp(cfg_mgr->active->ctable, cfg_apc, fwd_req->realm)))) {
448 tr_notice("tr_tids_req_handler: IDP Realm (%s) not member of APC (%s).", orig_req->realm->buf, orig_req->comm->buf);
449 tid_resp_set_err_msg(resp, tr_new_name("IDP APC membership error"));
455 /* Make sure we came through with a AAA server. If not, we can't handle the request. */
456 if (NULL == aaa_servers) {
457 tr_notice("tr_tids_req_handler: no route or AAA server for realm (%s) in community (%s).",
458 orig_req->realm->buf, orig_req->comm->buf);
459 tid_resp_set_err_msg(resp, tr_new_name("Missing trust route error"));
464 /* send a TID request to the AAA server(s), and get the answer(s) */
465 tr_debug("tr_tids_req_handler: sending TID request(s).");
467 expiration_interval = cfg_apc->expiration_interval;
468 else expiration_interval = cfg_comm->expiration_interval;
469 if (fwd_req->expiration_interval)
470 fwd_req->expiration_interval = (expiration_interval < fwd_req->expiration_interval) ? expiration_interval : fwd_req->expiration_interval;
471 else fwd_req->expiration_interval = expiration_interval;
473 /* Set up message queue for replies from req forwarding threads */
474 mq=tr_mq_new(tmp_ctx);
476 tr_notice("tr_tids_req_handler: unable to allocate message queue.");
480 tr_debug("tr_tids_req_handler: message queue allocated.");
483 aaa_iter=tr_aaa_server_iter_new(tmp_ctx);
484 if (aaa_iter==NULL) {
485 tr_notice("tr_tids_req_handler: unable to allocate AAA server iterator.");
489 for (n_aaa=0, this_aaa=tr_aaa_server_iter_first(aaa_iter, aaa_servers);
491 n_aaa++, this_aaa=tr_aaa_server_iter_next(aaa_iter)) {
492 tr_debug("tr_tids_req_handler: Preparing to start thread %d.", n_aaa);
494 aaa_cookie[n_aaa]=talloc(tmp_ctx, struct tr_tids_fwd_cookie);
495 if (aaa_cookie[n_aaa]==NULL) {
496 tr_notice("tr_tids_req_handler: unable to allocate cookie for AAA thread %d.", n_aaa);
500 talloc_set_destructor((void *)(aaa_cookie[n_aaa]), tr_tids_fwd_cookie_destructor);
501 /* fill in the cookie. To ensure the thread has valid data even if we exit first and
502 * abandon it, duplicate anything pointed to (except the mq). */
503 aaa_cookie[n_aaa]->thread_id=n_aaa;
504 if (0!=pthread_mutex_init(&(aaa_cookie[n_aaa]->mutex), NULL)) {
505 tr_notice("tr_tids_req_handler: unable to init mutex for AAA thread %d.", n_aaa);
509 aaa_cookie[n_aaa]->mq=mq;
510 aaa_cookie[n_aaa]->aaa_hostname=tr_dup_name(this_aaa->hostname);
511 aaa_cookie[n_aaa]->dh_params=tr_dh_dup(orig_req->tidc_dh);
512 aaa_cookie[n_aaa]->fwd_req=tid_dup_req(fwd_req);
513 talloc_steal(aaa_cookie[n_aaa], aaa_cookie[n_aaa]->fwd_req);
514 tr_debug("tr_tids_req_handler: cookie %d initialized.", n_aaa);
516 /* Take the cookie out of tmp_ctx before starting thread. If thread starts, it becomes
517 * responsible for freeing it until it queues a response. If we did not do this, the possibility
518 * exists that this function exits, freeing the cookie, before the thread takes the cookie
519 * out of our tmp_ctx. This would cause a segfault or talloc error in the thread. */
520 talloc_steal(NULL, aaa_cookie[n_aaa]);
521 if (0!=pthread_create(&(aaa_thread[n_aaa]), NULL, tr_tids_req_fwd_thread, aaa_cookie[n_aaa])) {
522 talloc_steal(tmp_ctx, aaa_cookie[n_aaa]); /* thread start failed; steal this back */
523 tr_notice("tr_tids_req_handler: unable to start AAA thread %d.", n_aaa);
527 tr_debug("tr_tids_req_handler: thread %d started.", n_aaa);
530 /* determine expiration time */
531 if (0!=tr_mq_pop_timeout(cfg_mgr->active->internal->tid_req_timeout, &ts_abort)) {
532 tr_notice("tr_tids_req_handler: unable to read clock for timeout.");
537 /* wait for responses */
538 tr_debug("tr_tids_req_handler: waiting for response(s).");
541 while (((n_responses+n_failed)<n_aaa) &&
542 (NULL!=(msg=tr_mq_pop(mq, &ts_abort)))) {
543 /* process message */
544 if (0==strcmp(tr_mq_msg_get_message(msg), TR_TID_MQMSG_SUCCESS)) {
545 payload=talloc_get_type_abort(tr_mq_msg_get_payload(msg), TR_RESP_COOKIE);
546 talloc_steal(tmp_ctx, payload); /* put this back in our context */
547 aaa_resp[payload->thread_id]=payload->resp; /* save pointers to these */
549 if (payload->resp->result==TID_SUCCESS) {
550 tr_tids_merge_resps(resp, payload->resp);
554 tr_notice("tr_tids_req_handler: TID error received from AAA server %d: %.*s",
556 payload->resp->err_msg->len,
557 payload->resp->err_msg->buf);
559 } else if (0==strcmp(tr_mq_msg_get_message(msg), TR_TID_MQMSG_FAILURE)) {
562 payload=talloc_get_type(tr_mq_msg_get_payload(msg), TR_RESP_COOKIE);
564 talloc_steal(tmp_ctx, payload); /* put this back in our context */
566 /* this means the thread was unable to allocate a response cookie, and we thus cannot determine which thread it was. This is bad and should never happen in a working system.. Give up. */
567 tr_notice("tr_tids_req_handler: TID request thread sent invalid reply. Aborting!");
571 tr_notice("tr_tids_req_handler: TID request for AAA server %d failed.",
574 /* unexpected message */
575 tr_err("tr_tids_req_handler: Unexpected message received. Aborting!");
580 /* Set the cookie pointer to NULL so we know we've dealt with this one. The
581 * cookie itself is in our tmp_ctx, which we'll free before exiting. Let it hang
582 * around in case we are still using pointers to elements of the cookie. */
583 aaa_cookie[payload->thread_id]=NULL;
587 /* check whether we've received enough responses to exit */
588 if ((idp_shared && (n_responses>0)) ||
589 (resp_frac_denom*n_responses>=resp_frac_numer*n_aaa))
593 tr_debug("tr_tids_req_handler: done waiting for responses. %d responses, %d failures.",
594 n_responses, n_failed);
595 /* Inform any remaining threads that we will no longer handle their responses. */
596 for (ii=0; ii<n_aaa; ii++) {
597 if (aaa_cookie[ii]!=NULL) {
598 if (0!=tr_tids_fwd_get_mutex(aaa_cookie[ii]))
599 tr_notice("tr_tids_req_handler: unable to get mutex for AAA thread %d.", ii);
601 aaa_cookie[ii]->mq=NULL; /* threads will not try to respond through a null mq */
603 if (0!=tr_tids_fwd_release_mutex(aaa_cookie[ii]))
604 tr_notice("tr_tids_req_handler: unable to release mutex for AAA thread %d.", ii);
608 /* Now all threads have either replied (and aaa_cookie[ii] is null) or have been told not to
609 * reply (by setting their mq pointer to null). However, some may have responded by placing
610 * a message on the mq after we last checked but before we set their mq pointer to null. These
611 * will not know that we gave up on them, so we must free their cookies for them. We can just
612 * go through any remaining messages on the mq to identify these threads. By putting them in
613 * our context instead of freeing them directly, we ensure we don't accidentally invalidate
614 * any of our own pointers into the structure before this function exits. */
615 while (NULL!=(msg=tr_mq_pop(mq, NULL))) {
616 payload=(TR_RESP_COOKIE *)tr_mq_msg_get_payload(msg);
617 if (aaa_cookie[payload->thread_id]!=NULL)
618 talloc_steal(tmp_ctx, aaa_cookie[payload->thread_id]);
623 if (n_responses==0) {
624 /* No requests succeeded, so this will be an error */
627 /* If we got any error responses, send an arbitrarily chosen one. */
628 for (ii=0; ii<n_aaa; ii++) {
629 if (aaa_resp[ii] != NULL) {
630 tid_resp_cpy(resp, aaa_resp[ii]);
634 /* No error responses at all, so generate our own error. */
635 tid_resp_set_err_msg(resp, tr_new_name("Unable to contact AAA server(s)."));
643 talloc_free(tmp_ctx);
647 static int tr_tids_gss_handler(gss_name_t client_name, TR_NAME *gss_name,
650 struct tr_tids_event_cookie *cookie=talloc_get_type_abort(data, struct tr_tids_event_cookie);
651 TIDS_INSTANCE *tids = cookie->tids;
652 TR_CFG_MGR *cfg_mgr = cookie->cfg_mgr;
654 if ((!client_name) || (!gss_name) || (!tids) || (!cfg_mgr)) {
655 tr_debug("tr_tidc_gss_handler: Bad parameters.");
659 /* Ensure at least one client exists using this GSS name */
660 if (NULL == tr_rp_client_lookup(cfg_mgr->active->rp_clients, gss_name)) {
661 tr_debug("tr_tids_gss_handler: Unknown GSS name %.*s", gss_name->len, gss_name->buf);
665 /* Store the GSS name */
666 tids->gss_name = tr_dup_name(gss_name);
667 tr_debug("Client's GSS Name: %.*s", gss_name->len, gss_name->buf);
673 /***** TIDS event handling *****/
675 /* called when a connection to the TIDS port is received */
676 static void tr_tids_event_cb(int listener, short event, void *arg)
678 TIDS_INSTANCE *tids = talloc_get_type_abort(arg, TIDS_INSTANCE);
680 if (0==(event & EV_READ))
681 tr_debug("tr_tids_event_cb: unexpected event on TIDS socket (event=0x%X)", event);
683 tids_accept(tids, listener);
686 /* called when it's time to sweep for completed TID child processes */
687 static void tr_tids_sweep_cb(int listener, short event, void *arg)
689 TIDS_INSTANCE *tids = talloc_get_type_abort(arg, TIDS_INSTANCE);
691 if (0==(event & EV_TIMEOUT))
692 tr_debug("tr_tids_event_cb: unexpected event on TID process sweep timer (event=0x%X)", event);
694 tids_sweep_procs(tids);
697 /* Configure the tids instance and set up its event handlers.
698 * Returns 0 on success, nonzero on failure. Fills in
699 * *tids_event (which should be allocated by caller). */
700 int tr_tids_event_init(struct event_base *base, TIDS_INSTANCE *tids, TR_CFG_MGR *cfg_mgr, TRPS_INSTANCE *trps,
701 struct tr_socket_event *tids_ev, struct event **sweep_ev)
703 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
704 struct tr_tids_event_cookie *cookie=NULL;
705 struct timeval sweep_interval;
709 if (tids_ev == NULL) {
710 tr_debug("tr_tids_event_init: Null tids_ev.");
715 if (sweep_ev == NULL) {
716 tr_debug("tr_tids_event_init: Null sweep_ev.");
721 /* Create the cookie for callbacks. We'll put it in the tids context, so it will
722 * be cleaned up when tids is freed by talloc_free. */
723 cookie=talloc(tmp_ctx, struct tr_tids_event_cookie);
724 if (cookie == NULL) {
725 tr_debug("tr_tids_event_init: Unable to allocate cookie.");
730 cookie->cfg_mgr=cfg_mgr;
732 talloc_steal(tids, cookie);
734 /* get a tids listener */
735 tids_ev->n_sock_fd = (int)tids_get_listener(tids,
738 cfg_mgr->active->internal->hostname,
739 cfg_mgr->active->internal->tids_port,
743 if (tids_ev->n_sock_fd==0) {
744 tr_crit("Error opening TID server socket.");
749 /* Set up listener events */
750 for (ii=0; ii<tids_ev->n_sock_fd; ii++) {
751 tids_ev->ev[ii]=event_new(base,
752 tids_ev->sock_fd[ii],
756 event_add(tids_ev->ev[ii], NULL);
759 /* Set up a periodic check for completed TID handler processes */
760 *sweep_ev = event_new(base, -1, EV_TIMEOUT|EV_PERSIST, tr_tids_sweep_cb, tids);
761 sweep_interval.tv_sec = 10;
762 sweep_interval.tv_usec = 0;
763 event_add(*sweep_ev, &sweep_interval);
766 talloc_free(tmp_ctx);