2 * Copyright (c) 2012-2014 , 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.
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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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34 #include <sys/socket.h>
35 #include <netinet/in.h>
36 #include <arpa/inet.h>
38 #include <openssl/dh.h>
39 #include <openssl/crypto.h>
47 #include <mon_internal.h>
48 #include <trp_internal.h>
50 #include <tr_name_internal.h>
51 #include <trust_router/tr_constraint.h>
52 #include <trust_router/tr_dh.h>
56 /* Read attribute attr from msg as an integer. Returns nonzero on error. */
57 static int tr_msg_get_json_integer(json_t *jmsg, const char *attr, int *dest)
61 obj=json_object_get(jmsg, attr);
66 if (!json_is_integer(obj)) {
70 (*dest)=json_integer_value(obj);
74 /* Read attribute attr from msg as a string. Copies string into mem_ctx context so jmsg can
75 * be destroyed safely. Returns nonzero on error. */
76 static TRP_RC tr_msg_get_json_string(json_t *jmsg, const char *attr, char **dest, TALLOC_CTX *mem_ctx)
80 obj=json_object_get(jmsg, attr);
85 if (!json_is_string(obj))
88 *dest=talloc_strdup(mem_ctx, json_string_value(obj));
95 enum msg_type tr_msg_get_msg_type(TR_MSG *msg)
100 void tr_msg_set_msg_type(TR_MSG *msg, enum msg_type type)
102 msg->msg_type = type;
105 /* NOTE: If you are manipulating messages with these getters/setters, the msg_rep
106 * objects are *not* put in the talloc context of the msg. If you are allocating
107 * the message directly with talloc, then you can talloc_steal() the rep into the
108 * message's context, but this is not handled automatically. */
111 * Get a TID_REQ message payload
114 * @return the message payload, or null if it is not a TID_REQUEST message
116 TID_REQ *tr_msg_get_req(TR_MSG *msg)
118 if (msg->msg_type == TID_REQUEST)
119 return (TID_REQ *)msg->msg_rep;
124 * Set message's payload
126 * Does not manage talloc contexts, works with any means of allocating
129 void tr_msg_set_req(TR_MSG *msg, TID_REQ *req)
132 msg->msg_type = TID_REQUEST;
136 * Get a TID_RESP message payload
139 * @return the message payload, or null if it is not a TID_RESPONSE message
141 TID_RESP *tr_msg_get_resp(TR_MSG *msg)
143 if (msg->msg_type == TID_RESPONSE)
144 return (TID_RESP *)msg->msg_rep;
149 * Set message's payload
151 * Does not manage talloc contexts, works with any means of allocating
154 void tr_msg_set_resp(TR_MSG *msg, TID_RESP *resp)
157 msg->msg_type = TID_RESPONSE;
161 * Get a MON_REQ message payload
164 * @return the message payload, or null if it is not a MON_REQUEST message
166 MON_REQ *tr_msg_get_mon_req(TR_MSG *msg)
168 if (msg->msg_type == MON_REQUEST)
169 return (MON_REQ *)msg->msg_rep;
174 * Set message's payload
176 * Does not manage talloc contexts, works with any means of allocating
179 void tr_msg_set_mon_req(TR_MSG *msg, MON_REQ *req)
182 msg->msg_type = MON_REQUEST;
186 * Get a MON_RESP message payload
189 * @return the message payload, or null if it is not a MON_RESPONSE message
191 MON_RESP *tr_msg_get_mon_resp(TR_MSG *msg)
193 if (msg->msg_type == MON_RESPONSE)
194 return (MON_RESP *)msg->msg_rep;
199 * Set message's payload
201 * Does not manage talloc contexts, works with any means of allocating
204 void tr_msg_set_mon_resp(TR_MSG *msg, MON_RESP *resp)
207 msg->msg_type = MON_RESPONSE;
211 * Get a TRP_UPD message payload
214 * @return the message payload, or null if it is not a TRP_UPDATE message
216 TRP_UPD *tr_msg_get_trp_upd(TR_MSG *msg)
218 if (msg->msg_type == TRP_UPDATE)
219 return (TRP_UPD *)msg->msg_rep;
224 * Set message's payload
226 * Does not manage talloc contexts, works with any means of allocating
229 void tr_msg_set_trp_upd(TR_MSG *msg, TRP_UPD *update)
232 msg->msg_type=TRP_UPDATE;
236 * Get a TRP_REQ message payload
239 * @return the message payload, or null if it is not a TRP_REQUEST message
241 TRP_REQ *tr_msg_get_trp_req(TR_MSG *msg)
243 if (msg->msg_type == TRP_REQUEST)
244 return (TRP_REQ *)msg->msg_rep;
249 * Set message's payload
251 * Does not manage talloc contexts, works with any means of allocating
254 void tr_msg_set_trp_req(TR_MSG *msg, TRP_REQ *req)
257 msg->msg_type=TRP_REQUEST;
260 static json_t *tr_msg_encode_dh(DH *dh)
266 if ((!dh) || (!dh->p) || (!dh->g) || (!dh->pub_key))
271 jbn = json_string(s=BN_bn2hex(dh->p));
273 json_object_set_new(jdh, "dh_p", jbn);
275 jbn = json_string(s=BN_bn2hex(dh->g));
277 json_object_set_new(jdh, "dh_g", jbn);
279 jbn = json_string(s=BN_bn2hex(dh->pub_key));
281 json_object_set_new(jdh, "dh_pub_key", jbn);
286 static DH *tr_msg_decode_dh(json_t *jdh)
291 json_t *jpub_key = NULL;
293 if (!(dh=tr_dh_new())) {
294 tr_crit("tr_msg_decode_dh(): Error allocating DH structure.");
298 /* store required fields from dh object */
299 if ((NULL == (jp = json_object_get(jdh, "dh_p"))) ||
300 (NULL == (jg = json_object_get(jdh, "dh_g"))) ||
301 (NULL == (jpub_key = json_object_get(jdh, "dh_pub_key")))) {
302 tr_debug("tr_msg_decode_dh(): Error parsing dh_info.");
307 BN_hex2bn(&(dh->p), json_string_value(jp));
308 BN_hex2bn(&(dh->g), json_string_value(jg));
309 BN_hex2bn(&(dh->pub_key), json_string_value(jpub_key));
314 static json_t * tr_msg_encode_tidreq(TID_REQ *req)
319 if ((!req) || (!req->rp_realm) || (!req->realm) || !(req->comm))
322 jreq = json_object();
325 jstr = tr_name_to_json_string(req->rp_realm);
326 json_object_set_new(jreq, "rp_realm", jstr);
328 jstr = tr_name_to_json_string(req->realm);
329 json_object_set_new(jreq, "target_realm", jstr);
331 jstr = tr_name_to_json_string(req->comm);
332 json_object_set_new(jreq, "community", jstr);
335 jstr = tr_name_to_json_string(req->orig_coi);
336 json_object_set_new(jreq, "orig_coi", jstr);
339 json_object_set_new(jreq, "dh_info", tr_msg_encode_dh(req->tidc_dh));
342 json_object_set(jreq, "constraints", (json_t *) req->cons);
345 json_object_set(jreq, "path", req->path);
346 if (req->expiration_interval)
347 json_object_set_new(jreq, "expiration_interval",
348 json_integer(req->expiration_interval));
353 static TID_REQ *tr_msg_decode_tidreq(TALLOC_CTX *mem_ctx, json_t *jreq)
355 TID_REQ *treq = NULL;
356 json_t *jrp_realm = NULL;
357 json_t *jrealm = NULL;
358 json_t *jcomm = NULL;
359 json_t *jorig_coi = NULL;
361 json_t *jpath = NULL;
362 json_t *jexpire_interval = NULL;
364 if (!(treq =tid_req_new())) {
365 tr_crit("tr_msg_decode_tidreq(): Error allocating TID_REQ structure.");
368 talloc_steal(mem_ctx, treq);
370 /* store required fields from request */
371 if ((NULL == (jrp_realm = json_object_get(jreq, "rp_realm"))) ||
372 (NULL == (jrealm = json_object_get(jreq, "target_realm"))) ||
373 (NULL == (jcomm = json_object_get(jreq, "community")))) {
374 tr_notice("tr_msg_decode(): Error parsing required fields.");
379 jpath = json_object_get(jreq, "path");
380 jexpire_interval = json_object_get(jreq, "expiration_interval");
382 treq->rp_realm = tr_new_name((char *)json_string_value(jrp_realm));
383 treq->realm = tr_new_name((char *)json_string_value(jrealm));
384 treq->comm = tr_new_name((char *)json_string_value(jcomm));
386 /* Get DH Info from the request */
387 if (NULL == (jdh = json_object_get(jreq, "dh_info"))) {
388 tr_debug("tr_msg_decode(): Error parsing dh_info.");
392 treq->tidc_dh = tr_msg_decode_dh(jdh);
394 /* store optional "orig_coi" field */
395 if (NULL != (jorig_coi = json_object_get(jreq, "orig_coi"))) {
396 treq->orig_coi = tr_new_name((char *)json_string_value(jorig_coi));
399 treq->cons = (TR_CONSTRAINT_SET *) json_object_get(jreq, "constraints");
401 if (!tr_constraint_set_validate(treq->cons)) {
402 tr_debug("Constraint set validation failed");
406 json_incref((json_t *) treq->cons);
407 tid_req_cleanup_json(treq, (json_t *) treq->cons);
412 tid_req_cleanup_json(treq, jpath);
414 if (jexpire_interval)
415 treq->expiration_interval = json_integer_value(jexpire_interval);
420 static json_t *tr_msg_encode_one_server(TID_SRVR_BLK *srvr)
422 json_t *jsrvr = NULL;
424 gchar *time_str = g_time_val_to_iso8601(&srvr->key_expiration);
426 tr_debug("Encoding one server.");
428 jsrvr = json_object();
430 jstr = json_string(srvr->aaa_server_addr);
431 json_object_set_new(jsrvr, "server_addr", jstr);
433 json_object_set_new(jsrvr,
434 "key_expiration", json_string(time_str));
436 /* Server DH Block */
437 jstr = tr_name_to_json_string(srvr->key_name);
438 json_object_set_new(jsrvr, "key_name", jstr);
439 json_object_set_new(jsrvr, "server_dh", tr_msg_encode_dh(srvr->aaa_server_dh));
441 /* The path is owned by the srvr, so grab an extra ref*/
442 json_object_set(jsrvr, "path", (json_t *)(srvr->path));
446 static int tr_msg_decode_one_server(json_t *jsrvr, TID_SRVR_BLK *srvr)
448 json_t *jsrvr_addr = NULL;
449 json_t *jsrvr_kn = NULL;
450 json_t *jsrvr_dh = NULL;
451 json_t *jsrvr_expire = NULL;
457 if ((NULL == (jsrvr_addr = json_object_get(jsrvr, "server_addr"))) ||
458 (NULL == (jsrvr_kn = json_object_get(jsrvr, "key_name"))) ||
459 (NULL == (jsrvr_dh = json_object_get(jsrvr, "server_dh")))) {
460 tr_notice("tr_msg_decode_one_server(): Error parsing required fields.");
464 srvr->aaa_server_addr=talloc_strdup(srvr, json_string_value(jsrvr_addr));
465 srvr->key_name = tr_new_name((char *)json_string_value(jsrvr_kn));
466 srvr->aaa_server_dh = tr_msg_decode_dh(jsrvr_dh);
467 tid_srvr_blk_set_path(srvr, (TID_PATH *) json_object_get(jsrvr, "path"));
468 jsrvr_expire = json_object_get(jsrvr, "key_expiration");
469 if (jsrvr_expire && json_is_string(jsrvr_expire)) {
470 if (!g_time_val_from_iso8601(json_string_value(jsrvr_expire),
471 &srvr->key_expiration))
472 tr_notice("Key expiration %s cannot be parsed", json_string_value(jsrvr_expire));
478 static json_t *tr_msg_encode_servers(TID_RESP *resp)
480 json_t *jservers = NULL;
481 json_t *jsrvr = NULL;
482 TID_SRVR_BLK *srvr = NULL;
485 jservers = json_array();
487 tid_resp_servers_foreach(resp, srvr, index) {
488 if ((NULL == (jsrvr = tr_msg_encode_one_server(srvr))) ||
489 (-1 == json_array_append_new(jservers, jsrvr))) {
494 // tr_debug("tr_msg_encode_servers(): servers contains:");
495 // tr_debug("%s", json_dumps(jservers, 0));
499 static TID_SRVR_BLK *tr_msg_decode_servers(TALLOC_CTX *mem_ctx, json_t *jservers)
501 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
502 TID_SRVR_BLK *servers=NULL;
503 TID_SRVR_BLK *new_srvr=NULL;
505 size_t i, num_servers;
507 num_servers = json_array_size(jservers);
508 tr_debug("tr_msg_decode_servers(): Number of servers = %u.", (unsigned) num_servers);
510 if (0 == num_servers) {
511 tr_debug("tr_msg_decode_servers(): Server array is empty.");
515 for (i = 0; i < num_servers; i++) {
516 jsrvr = json_array_get(jservers, i);
518 new_srvr=tid_srvr_blk_new(tmp_ctx);
519 if (new_srvr==NULL) {
520 servers=NULL; /* it's all in tmp_ctx, so we can just let go */
524 if (0 != tr_msg_decode_one_server(jsrvr, new_srvr)) {
525 servers=NULL; /* it's all in tmp_ctx, so we can just let go */
529 tid_srvr_blk_add(servers, new_srvr);
532 talloc_steal(mem_ctx, servers);
535 talloc_free(tmp_ctx);
539 static json_t * tr_msg_encode_tidresp(TID_RESP *resp)
541 json_t *jresp = NULL;
543 json_t *jservers = NULL;
545 if ((!resp) || (!resp->rp_realm) || (!resp->realm) || !(resp->comm))
548 jresp = json_object();
550 if (TID_ERROR == resp->result) {
551 jstr = json_string("error");
552 json_object_set_new(jresp, "result", jstr);
554 jstr = tr_name_to_json_string(resp->err_msg);
555 json_object_set_new(jresp, "err_msg", jstr);
559 jstr = json_string("success");
560 json_object_set_new(jresp, "result", jstr);
563 jstr = tr_name_to_json_string(resp->rp_realm);
564 json_object_set_new(jresp, "rp_realm", jstr);
566 jstr = tr_name_to_json_string(resp->realm);
567 json_object_set_new(jresp, "target_realm", jstr);
569 jstr = tr_name_to_json_string(resp->comm);
570 json_object_set_new(jresp, "comm", jstr);
572 if (resp->orig_coi) {
573 jstr = tr_name_to_json_string(resp->orig_coi);
574 json_object_set_new(jresp, "orig_coi", jstr);
577 if (NULL == resp->servers) {
578 tr_debug("tr_msg_encode_tidresp(): No servers to encode.");
581 jservers = tr_msg_encode_servers(resp);
582 json_object_set_new(jresp, "servers", jservers);
584 if (resp->error_path)
585 json_object_set(jresp, "error_path", resp->error_path);
591 static TID_RESP *tr_msg_decode_tidresp(TALLOC_CTX *mem_ctx, json_t *jresp)
593 TID_RESP *tresp = NULL;
594 json_t *jresult = NULL;
595 json_t *jrp_realm = NULL;
596 json_t *jrealm = NULL;
597 json_t *jcomm = NULL;
598 json_t *jorig_coi = NULL;
599 json_t *jservers = NULL;
600 json_t *jerr_msg = NULL;
602 if (!(tresp=tid_resp_new(mem_ctx))) {
603 tr_crit("tr_msg_decode_tidresp(): Error allocating TID_RESP structure.");
607 /* store required fields from response */
608 if ((NULL == (jresult = json_object_get(jresp, "result"))) ||
609 (!json_is_string(jresult)) ||
610 (NULL == (jrp_realm = json_object_get(jresp, "rp_realm"))) ||
611 (!json_is_string(jrp_realm)) ||
612 (NULL == (jrealm = json_object_get(jresp, "target_realm"))) ||
613 (!json_is_string(jrealm)) ||
614 (NULL == (jcomm = json_object_get(jresp, "comm"))) ||
615 (!json_is_string(jcomm))) {
616 tr_debug("tr_msg_decode_tidresp(): Error parsing response.");
621 if (0 == (strcmp(json_string_value(jresult), "success"))) {
622 tr_debug("tr_msg_decode_tidresp(): Success! result = %s.", json_string_value(jresult));
623 if ((NULL != (jservers = json_object_get(jresp, "servers"))) ||
624 (!json_is_array(jservers))) {
625 tresp->servers = tr_msg_decode_servers(tresp, jservers);
631 tresp->result = TID_SUCCESS;
634 tresp->result = TID_ERROR;
635 tr_debug("tr_msg_decode_tidresp(): Error! result = %s.", json_string_value(jresult));
636 if ((NULL != (jerr_msg = json_object_get(jresp, "err_msg"))) ||
637 (!json_is_string(jerr_msg))) {
638 tresp->err_msg = tr_new_name(json_string_value(jerr_msg));
640 tresp->err_msg = tr_new_name("No error message set.");
642 if (NULL !=(tresp->error_path = json_object_get(jresp, "error_path")))
643 json_incref(tresp->error_path);
646 tresp->rp_realm = tr_new_name(json_string_value(jrp_realm));
647 tresp->realm = tr_new_name(json_string_value(jrealm));
648 tresp->comm = tr_new_name(json_string_value(jcomm));
650 /* store optional "orig_coi" field */
651 if ((NULL != (jorig_coi = json_object_get(jresp, "orig_coi"))) &&
652 (!json_is_object(jorig_coi))) {
653 tresp->orig_coi = tr_new_name(json_string_value(jorig_coi));
660 /* Information records for TRP update msg
661 * requires that jrec already be allocated */
662 static TRP_RC tr_msg_encode_inforec_route(json_t *jrec, TRP_INFOREC *rec)
671 if (trp_inforec_get_trust_router(rec)==NULL)
674 s=tr_name_strdup(trp_inforec_get_trust_router(rec));
681 json_object_set_new(jrec, "trust_router", jstr);
683 jint=json_integer(trp_inforec_get_metric(rec));
686 json_object_set_new(jrec, "metric", jint);
688 jint=json_integer(trp_inforec_get_interval(rec));
691 json_object_set_new(jrec, "interval", jint);
696 /* returns a json array */
697 static json_t *tr_msg_encode_apcs(TR_APC *apcs)
699 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
700 TR_APC_ITER *iter=tr_apc_iter_new(tmp_ctx);
712 for (apc=tr_apc_iter_first(iter, apcs); apc!=NULL; apc=tr_apc_iter_next(iter)) {
713 jid=tr_name_to_json_string(tr_apc_get_id(apc));
714 if ((jid==NULL) || (json_array_append_new(jarray, jid)!=0)) {
722 talloc_free(tmp_ctx);
726 static TR_APC *tr_msg_decode_apcs(TALLOC_CTX *mem_ctx, json_t *jarray, TRP_RC *rc)
728 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
730 TR_APC *apc_list=NULL;
736 for (ii=0; ii<json_array_size(jarray); ii++) {
737 jstr=json_array_get(jarray, ii);
738 new=tr_apc_new(tmp_ctx);
739 if ((jstr==NULL) || (new==NULL) || (!json_is_string(jstr))) {
740 apc_list=NULL; /* these are all in tmp_ctx, so they'll still get cleaned up */
744 tr_apc_set_id(new, tr_new_name(json_string_value(jstr)));
745 if (tr_apc_get_id(new)==NULL) {
746 apc_list=NULL; /* these are all in tmp_ctx, so they'll still get cleaned up */
750 tr_apc_add(apc_list, new);
756 talloc_steal(mem_ctx, apc_list);
759 talloc_free(tmp_ctx);
763 static TRP_RC tr_msg_encode_inforec_comm(json_t *jrec, TRP_INFOREC *rec)
768 const char *sconst=NULL;
769 TR_COMM_TYPE commtype=TR_COMM_UNKNOWN;
774 commtype=trp_inforec_get_comm_type(rec);
775 if (commtype==TR_COMM_UNKNOWN) {
776 tr_notice("tr_msg_encode_inforec_comm: unknown community type.");
779 sconst=tr_comm_type_to_str(commtype);
782 jstr=json_string(sconst);
785 json_object_set_new(jrec, "type", jstr);
787 sconst=tr_realm_role_to_str(trp_inforec_get_role(rec));
789 tr_notice("tr_msg_encode_inforec_comm: unknown realm role.");
792 jstr=json_string(sconst);
795 json_object_set_new(jrec, "role", jstr);
797 japcs=tr_msg_encode_apcs(trp_inforec_get_apcs(rec));
799 tr_notice("tr_msg_encode_inforec_comm: error encoding APCs.");
802 json_object_set_new(jrec, "apcs", japcs);
805 if (trp_inforec_get_owner_realm(rec)!=NULL) {
806 jstr=tr_name_to_json_string(trp_inforec_get_owner_realm(rec));
809 json_object_set_new(jrec, "owner_realm", jstr);
812 if (trp_inforec_get_owner_contact(rec)!=NULL) {
813 jstr=tr_name_to_json_string(trp_inforec_get_owner_contact(rec));
816 json_object_set_new(jrec, "owner_contact", jstr);
819 json_object_set(jrec, "provenance", trp_inforec_get_provenance(rec));
821 jint=json_integer(trp_inforec_get_interval(rec));
824 json_object_set_new(jrec, "interval", jint);
829 static json_t *tr_msg_encode_inforec(TRP_INFOREC *rec)
834 if ((rec==NULL) || (trp_inforec_get_type(rec)==TRP_INFOREC_TYPE_UNKNOWN))
841 jstr=json_string(trp_inforec_type_to_string(trp_inforec_get_type(rec)));
846 json_object_set_new(jrec, "record_type", jstr);
849 case TRP_INFOREC_TYPE_ROUTE:
850 if (TRP_SUCCESS!=tr_msg_encode_inforec_route(jrec, rec)) {
855 case TRP_INFOREC_TYPE_COMMUNITY:
856 if (TRP_SUCCESS!=tr_msg_encode_inforec_comm(jrec, rec)) {
868 static TRP_RC tr_msg_decode_trp_inforec_route(json_t *jrecord, TRP_INFOREC *rec)
870 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
875 rc=tr_msg_get_json_string(jrecord, "trust_router", &s, tmp_ctx);
876 if (rc != TRP_SUCCESS)
878 if (TRP_SUCCESS!=trp_inforec_set_trust_router(rec, tr_new_name(s))) {
882 talloc_free(s); s=NULL;
884 trp_inforec_set_next_hop(rec, NULL); /* make sure this is null (filled in later) */
886 rc=tr_msg_get_json_integer(jrecord, "metric", &num);
887 if ((rc != TRP_SUCCESS) || (TRP_SUCCESS!=trp_inforec_set_metric(rec,num)))
890 rc=tr_msg_get_json_integer(jrecord, "interval", &num);
891 if ((rc != TRP_SUCCESS) || (TRP_SUCCESS!=trp_inforec_set_interval(rec,num)))
895 talloc_free(tmp_ctx);
899 static TRP_RC tr_msg_decode_trp_inforec_comm(json_t *jrecord, TRP_INFOREC *rec)
901 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
907 rc=tr_msg_get_json_string(jrecord, "type", &s, tmp_ctx);
908 if (rc != TRP_SUCCESS)
910 if (TRP_SUCCESS!=trp_inforec_set_comm_type(rec, tr_comm_type_from_str(s))) {
914 talloc_free(s); s=NULL;
916 rc=tr_msg_get_json_string(jrecord, "role", &s, tmp_ctx);
917 if (rc != TRP_SUCCESS)
919 if (TRP_SUCCESS!=trp_inforec_set_role(rec, tr_realm_role_from_str(s))) {
923 talloc_free(s); s=NULL;
925 apcs=tr_msg_decode_apcs(rec, json_object_get(jrecord, "apcs"), &rc);
926 if (rc!=TRP_SUCCESS) {
930 trp_inforec_set_apcs(rec, apcs);
932 rc=tr_msg_get_json_integer(jrecord, "interval", &num);
933 tr_debug("tr_msg_decode_trp_inforec_comm: interval=%u", num);
934 if ((rc != TRP_SUCCESS) || (TRP_SUCCESS!=trp_inforec_set_interval(rec,num)))
937 trp_inforec_set_provenance(rec, json_object_get(jrecord, "provenance"));
940 rc=tr_msg_get_json_string(jrecord, "owner_realm", &s, tmp_ctx);
941 if (rc == TRP_SUCCESS) {
942 if (TRP_SUCCESS!=trp_inforec_set_owner_realm(rec, tr_new_name(s))) {
952 rc=tr_msg_get_json_string(jrecord, "owner_contact", &s, tmp_ctx);
953 if (rc == TRP_SUCCESS) {
954 if (TRP_SUCCESS!=trp_inforec_set_owner_contact(rec, tr_new_name(s))) {
965 talloc_free(tmp_ctx);
969 /* decode a single record */
970 static TRP_INFOREC *tr_msg_decode_trp_inforec(TALLOC_CTX *mem_ctx, json_t *jrecord)
972 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
973 TRP_INFOREC_TYPE rectype;
974 TRP_INFOREC *rec=NULL;
978 if (TRP_SUCCESS!=tr_msg_get_json_string(jrecord, "record_type", &s, tmp_ctx))
981 rectype=trp_inforec_type_from_string(s);
982 talloc_free(s); s=NULL;
984 rec=trp_inforec_new(tmp_ctx, rectype);
990 tr_debug("tr_msg_decode_trp_inforec: '%s' record found.", trp_inforec_type_to_string(rec->type));
992 switch(trp_inforec_get_type(rec)) {
993 case TRP_INFOREC_TYPE_ROUTE:
994 rc=tr_msg_decode_trp_inforec_route(jrecord, rec);
996 case TRP_INFOREC_TYPE_COMMUNITY:
997 rc=tr_msg_decode_trp_inforec_comm(jrecord, rec);
1004 talloc_steal(mem_ctx, rec);
1008 if (rc != TRP_SUCCESS) {
1009 trp_inforec_free(rec);
1012 talloc_free(tmp_ctx);
1016 /* TRP update msg */
1017 static json_t *tr_msg_encode_trp_upd(TRP_UPD *update)
1019 json_t *jupdate=NULL;
1020 json_t *jrecords=NULL;
1029 jupdate=json_object();
1033 s=tr_name_strdup(trp_upd_get_comm(update));
1035 json_decref(jupdate);
1038 jstr=json_string(s);
1041 json_decref(jupdate);
1044 json_object_set_new(jupdate, "community", jstr);
1046 s=tr_name_strdup(trp_upd_get_realm(update));
1048 json_decref(jupdate);
1051 jstr=json_string(s);
1054 json_decref(jupdate);
1057 json_object_set_new(jupdate, "realm", jstr);
1059 jrecords=json_array();
1060 if (jrecords==NULL) {
1061 json_decref(jupdate);
1064 json_object_set_new(jupdate, "records", jrecords); /* jrecords now a "borrowed" reference */
1065 for (rec=trp_upd_get_inforec(update); rec!=NULL; rec=trp_inforec_get_next(rec)) {
1066 tr_debug("tr_msg_encode_trp_upd: encoding inforec.");
1067 jrec=tr_msg_encode_inforec(rec);
1069 json_decref(jupdate); /* also decs jrecords and any elements */
1072 if (0!=json_array_append_new(jrecords, jrec)) {
1073 json_decref(jupdate); /* also decs jrecords and any elements */
1074 json_decref(jrec); /* this one did not get added so dec explicitly */
1082 /* Creates a linked list of records in the msg->body talloc context.
1083 * An error will be returned if any unparseable records are encountered.
1085 static TRP_UPD *tr_msg_decode_trp_upd(TALLOC_CTX *mem_ctx, json_t *jupdate)
1087 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
1088 json_t *jrecords=NULL;
1090 TRP_UPD *update=NULL;
1091 TRP_INFOREC *new_rec=NULL;
1092 TRP_INFOREC *list_tail=NULL;
1095 TRP_RC rc=TRP_ERROR;
1097 update=trp_upd_new(tmp_ctx);
1103 rc=tr_msg_get_json_string(jupdate, "community", &s, tmp_ctx);
1104 if (rc != TRP_SUCCESS) {
1105 tr_debug("tr_msg_decode_trp_upd: no community in TRP update message.");
1109 name=tr_new_name(s);
1111 tr_debug("tr_msg_decode_trp_upd: could not allocate community name.");
1115 talloc_free(s); s=NULL;
1116 trp_upd_set_comm(update, name);
1118 rc=tr_msg_get_json_string(jupdate, "realm", &s, tmp_ctx);
1119 if (rc != TRP_SUCCESS) {
1120 tr_debug("tr_msg_decode_trp_upd: no realm in TRP update message.");
1124 name=tr_new_name(s);
1126 tr_debug("tr_msg_decode_trp_upd: could not allocate realm name.");
1130 talloc_free(s); s=NULL;
1131 trp_upd_set_realm(update, name);
1133 jrecords=json_object_get(jupdate, "records");
1134 if ((jrecords==NULL) || (!json_is_array(jrecords))) {
1139 tr_debug("tr_msg_decode_trp_upd: found %d records", json_array_size(jrecords));
1140 /* process the array */
1141 for (ii=0; ii<json_array_size(jrecords); ii++) {
1142 new_rec=tr_msg_decode_trp_inforec(update, json_array_get(jrecords, ii));
1143 if (new_rec==NULL) {
1148 if (list_tail==NULL)
1149 trp_upd_set_inforec(update, new_rec); /* first is a special case */
1151 trp_inforec_set_next(list_tail, new_rec);
1156 /* Succeeded. Move new allocations into the correct talloc context */
1157 talloc_steal(mem_ctx, update);
1161 talloc_free(tmp_ctx);
1162 if (rc!=TRP_SUCCESS)
1167 static json_t *tr_msg_encode_trp_req(TRP_REQ *req)
1176 jbody=json_object();
1180 if ((NULL==trp_req_get_comm(req))
1181 || (NULL==trp_req_get_realm(req))) {
1186 s=tr_name_strdup(trp_req_get_comm(req)); /* ensures null termination */
1191 jstr=json_string(s);
1197 json_object_set_new(jbody, "community", jstr);
1199 s=tr_name_strdup(trp_req_get_realm(req)); /* ensures null termination */
1204 jstr=json_string(s);
1210 json_object_set_new(jbody, "realm", jstr);
1215 static TRP_REQ *tr_msg_decode_trp_req(TALLOC_CTX *mem_ctx, json_t *jreq)
1217 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
1220 TRP_RC rc=TRP_ERROR;
1222 /* check message type and body type for agreement */
1223 req=trp_req_new(tmp_ctx);
1229 rc=tr_msg_get_json_string(jreq, "community", &s, tmp_ctx);
1230 if (rc!=TRP_SUCCESS)
1232 trp_req_set_comm(req, tr_new_name(s));
1233 talloc_free(s); s=NULL;
1235 rc=tr_msg_get_json_string(jreq, "realm", &s, tmp_ctx);
1236 if (rc!=TRP_SUCCESS)
1238 trp_req_set_realm(req, tr_new_name(s));
1239 talloc_free(s); s=NULL;
1242 talloc_steal(mem_ctx, req);
1245 talloc_free(tmp_ctx);
1246 if (rc!=TRP_SUCCESS)
1251 char *tr_msg_encode(TALLOC_CTX *mem_ctx, TR_MSG *msg)
1254 json_t *jmsg_type=NULL;
1255 char *encoded_tmp=NULL;
1257 TID_RESP *tidresp=NULL;
1258 TID_REQ *tidreq=NULL;
1259 TRP_UPD *trpupd=NULL;
1260 TRP_REQ *trpreq=NULL;
1261 MON_REQ *monreq=NULL;
1262 MON_RESP *monresp=NULL;
1264 /* TBD -- add error handling */
1265 jmsg = json_object();
1267 switch (msg->msg_type) {
1269 jmsg_type = json_string("tid_request");
1270 json_object_set_new(jmsg, "msg_type", jmsg_type);
1271 tidreq=tr_msg_get_req(msg);
1272 json_object_set_new(jmsg, "msg_body", tr_msg_encode_tidreq(tidreq));
1276 jmsg_type = json_string("tid_response");
1277 json_object_set_new(jmsg, "msg_type", jmsg_type);
1278 tidresp=tr_msg_get_resp(msg);
1279 json_object_set_new(jmsg, "msg_body", tr_msg_encode_tidresp(tidresp));
1283 jmsg_type = json_string("trp_update");
1284 json_object_set_new(jmsg, "msg_type", jmsg_type);
1285 trpupd=tr_msg_get_trp_upd(msg);
1286 json_object_set_new(jmsg, "msg_body", tr_msg_encode_trp_upd(trpupd));
1290 jmsg_type = json_string("trp_request");
1291 json_object_set_new(jmsg, "msg_type", jmsg_type);
1292 trpreq=tr_msg_get_trp_req(msg);
1293 json_object_set_new(jmsg, "msg_body", tr_msg_encode_trp_req(trpreq));
1297 jmsg_type = json_string("mon_request");
1298 json_object_set_new(jmsg, "msg_type", jmsg_type);
1299 monreq=tr_msg_get_mon_req(msg);
1300 json_object_set_new(jmsg, "msg_body", mon_req_encode(monreq));
1304 jmsg_type = json_string("mon_response");
1305 json_object_set_new(jmsg, "msg_type", jmsg_type);
1306 monresp=tr_msg_get_mon_resp(msg);
1307 json_object_set_new(jmsg, "msg_body", mon_resp_encode(monresp));
1315 /* We should perhaps use json_set_alloc_funcs to automatically use talloc, but for
1316 * now, we'll encode to a malloc'ed buffer, then copy that to a talloc'ed buffer. */
1317 encoded_tmp=json_dumps(jmsg, 0); // malloc'ed version
1318 json_decref(jmsg); // free the JSON structure
1319 encoded = talloc_strdup(mem_ctx, encoded_tmp); // get the talloc'ed version
1320 free(encoded_tmp); // free the malloc'ed version
1322 tr_debug("tr_msg_encode: outgoing msg=%s", encoded);
1326 TR_MSG *tr_msg_decode(TALLOC_CTX *mem_ctx, const char *jbuf, size_t buflen)
1329 json_t *jmsg = NULL;
1333 const char *mtype = NULL;
1335 if (NULL == (jmsg = json_loadb(jbuf, buflen, JSON_DISABLE_EOF_CHECK, &rc))) {
1336 tr_debug("tr_msg_decode(): error loading object");
1340 if (!(msg = talloc_zero(mem_ctx, TR_MSG))) {
1341 tr_debug("tr_msg_decode(): Error allocating TR_MSG structure.");
1346 if ((NULL == (jtype = json_object_get(jmsg, "msg_type"))) ||
1347 (NULL == (jbody = json_object_get(jmsg, "msg_body")))) {
1348 tr_debug("tr_msg_decode(): Error parsing message header.");
1350 tr_msg_free_decoded(msg);
1354 mtype = json_string_value(jtype);
1356 if (0 == strcmp(mtype, "tid_request")) {
1357 msg->msg_type = TID_REQUEST;
1358 tr_msg_set_req(msg, tr_msg_decode_tidreq(msg, jbody));
1360 else if (0 == strcmp(mtype, "tid_response")) {
1361 msg->msg_type = TID_RESPONSE;
1362 tr_msg_set_resp(msg, tr_msg_decode_tidresp(msg, jbody));
1364 else if (0 == strcmp(mtype, "trp_update")) {
1365 msg->msg_type = TRP_UPDATE;
1366 tr_msg_set_trp_upd(msg, tr_msg_decode_trp_upd(msg, jbody));
1368 else if (0 == strcmp(mtype, "trp_request")) {
1369 msg->msg_type = TRP_UPDATE;
1370 tr_msg_set_trp_req(msg, tr_msg_decode_trp_req(msg, jbody));
1372 else if (0 == strcmp(mtype, "mon_request")) {
1373 msg->msg_type = MON_REQUEST;
1374 tr_msg_set_mon_req(msg, mon_req_decode(msg, jbody));
1376 /* We do not currently handle monitoring responses */
1377 else if (0 == strcmp(mtype, "mon_response")) {
1378 msg->msg_type = MON_RESPONSE;
1379 tr_msg_set_mon_resp(msg, mon_resp_decode(msg, jbody));
1382 msg->msg_type = TR_UNKNOWN;
1383 msg->msg_rep = NULL;
1391 void tr_msg_free_encoded(char *jmsg)
1397 void tr_msg_free_decoded(TR_MSG *msg)