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.
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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>
46 #include <trp_internal.h>
47 #include <mon_internal.h>
49 #include <tr_name_internal.h>
50 #include <trust_router/tr_constraint.h>
51 #include <trust_router/tr_dh.h>
55 /* Read attribute attr from msg as an integer. Returns nonzero on error. */
56 static int tr_msg_get_json_integer(json_t *jmsg, const char *attr, int *dest)
60 obj=json_object_get(jmsg, attr);
65 if (!json_is_integer(obj)) {
69 (*dest)=json_integer_value(obj);
73 /* Read attribute attr from msg as a string. Copies string into mem_ctx context so jmsg can
74 * be destroyed safely. Returns nonzero on error. */
75 static TRP_RC tr_msg_get_json_string(json_t *jmsg, const char *attr, char **dest, TALLOC_CTX *mem_ctx)
79 obj=json_object_get(jmsg, attr);
84 if (!json_is_string(obj))
87 *dest=talloc_strdup(mem_ctx, json_string_value(obj));
94 enum msg_type tr_msg_get_msg_type(TR_MSG *msg)
99 void tr_msg_set_msg_type(TR_MSG *msg, enum msg_type type)
101 msg->msg_type = type;
104 /* NOTE: If you are manipulating messages with these getters/setters, the msg_rep
105 * objects are *not* put in the talloc context of the msg. If you are allocating
106 * the message directly with talloc, then you can talloc_steal() the rep into the
107 * message's context, but this is not handled automatically. */
110 * Get a TID_REQ message payload
113 * @return the message payload, or null if it is not a TID_REQUEST message
115 TID_REQ *tr_msg_get_req(TR_MSG *msg)
117 if (msg->msg_type == TID_REQUEST)
118 return (TID_REQ *)msg->msg_rep;
123 * Set message's payload
125 * Does not manage talloc contexts, works with any means of allocating
128 void tr_msg_set_req(TR_MSG *msg, TID_REQ *req)
131 msg->msg_type = TID_REQUEST;
135 * Get a TID_RESP message payload
138 * @return the message payload, or null if it is not a TID_RESPONSE message
140 TID_RESP *tr_msg_get_resp(TR_MSG *msg)
142 if (msg->msg_type == TID_RESPONSE)
143 return (TID_RESP *)msg->msg_rep;
148 * Set message's payload
150 * Does not manage talloc contexts, works with any means of allocating
153 void tr_msg_set_resp(TR_MSG *msg, TID_RESP *resp)
156 msg->msg_type = TID_RESPONSE;
160 * Get a MON_REQ message payload
163 * @return the message payload, or null if it is not a MON_REQUEST message
165 MON_REQ *tr_msg_get_mon_req(TR_MSG *msg)
167 if (msg->msg_type == MON_REQUEST)
168 return (MON_REQ *)msg->msg_rep;
173 * Set message's payload
175 * Does not manage talloc contexts, works with any means of allocating
178 void tr_msg_set_mon_req(TR_MSG *msg, MON_REQ *req)
181 msg->msg_type = MON_REQUEST;
185 * Get a MON_RESP message payload
188 * @return the message payload, or null if it is not a MON_RESPONSE message
190 MON_RESP *tr_msg_get_mon_resp(TR_MSG *msg)
192 if (msg->msg_type == MON_RESPONSE)
193 return (MON_RESP *)msg->msg_rep;
198 * Set message's payload
200 * Does not manage talloc contexts, works with any means of allocating
203 void tr_msg_set_mon_resp(TR_MSG *msg, MON_RESP *resp)
206 msg->msg_type = MON_RESPONSE;
210 * Get a TRP_UPD message payload
213 * @return the message payload, or null if it is not a TRP_UPDATE message
215 TRP_UPD *tr_msg_get_trp_upd(TR_MSG *msg)
217 if (msg->msg_type == TRP_UPDATE)
218 return (TRP_UPD *)msg->msg_rep;
223 * Set message's payload
225 * Does not manage talloc contexts, works with any means of allocating
228 void tr_msg_set_trp_upd(TR_MSG *msg, TRP_UPD *update)
231 msg->msg_type=TRP_UPDATE;
235 * Get a TRP_REQ message payload
238 * @return the message payload, or null if it is not a TRP_REQUEST message
240 TRP_REQ *tr_msg_get_trp_req(TR_MSG *msg)
242 if (msg->msg_type == TRP_REQUEST)
243 return (TRP_REQ *)msg->msg_rep;
248 * Set message's payload
250 * Does not manage talloc contexts, works with any means of allocating
253 void tr_msg_set_trp_req(TR_MSG *msg, TRP_REQ *req)
256 msg->msg_type=TRP_REQUEST;
259 static json_t *tr_msg_encode_dh(DH *dh)
265 if ((!dh) || (!dh->p) || (!dh->g) || (!dh->pub_key))
270 jbn = json_string(s=BN_bn2hex(dh->p));
272 json_object_set_new(jdh, "dh_p", jbn);
274 jbn = json_string(s=BN_bn2hex(dh->g));
276 json_object_set_new(jdh, "dh_g", jbn);
278 jbn = json_string(s=BN_bn2hex(dh->pub_key));
280 json_object_set_new(jdh, "dh_pub_key", jbn);
285 static DH *tr_msg_decode_dh(json_t *jdh)
290 json_t *jpub_key = NULL;
292 if (!(dh=tr_dh_new())) {
293 tr_crit("tr_msg_decode_dh(): Error allocating DH structure.");
297 /* store required fields from dh object */
298 if ((NULL == (jp = json_object_get(jdh, "dh_p"))) ||
299 (NULL == (jg = json_object_get(jdh, "dh_g"))) ||
300 (NULL == (jpub_key = json_object_get(jdh, "dh_pub_key")))) {
301 tr_debug("tr_msg_decode_dh(): Error parsing dh_info.");
306 BN_hex2bn(&(dh->p), json_string_value(jp));
307 BN_hex2bn(&(dh->g), json_string_value(jg));
308 BN_hex2bn(&(dh->pub_key), json_string_value(jpub_key));
313 static json_t * tr_msg_encode_tidreq(TID_REQ *req)
318 if ((!req) || (!req->rp_realm) || (!req->realm) || !(req->comm))
321 jreq = json_object();
324 jstr = tr_name_to_json_string(req->rp_realm);
325 json_object_set_new(jreq, "rp_realm", jstr);
327 jstr = tr_name_to_json_string(req->realm);
328 json_object_set_new(jreq, "target_realm", jstr);
330 jstr = tr_name_to_json_string(req->comm);
331 json_object_set_new(jreq, "community", jstr);
334 jstr = tr_name_to_json_string(req->orig_coi);
335 json_object_set_new(jreq, "orig_coi", jstr);
338 json_object_set_new(jreq, "dh_info", tr_msg_encode_dh(req->tidc_dh));
341 json_object_set(jreq, "constraints", (json_t *) req->cons);
344 json_object_set(jreq, "path", req->path);
345 if (req->expiration_interval)
346 json_object_set_new(jreq, "expiration_interval",
347 json_integer(req->expiration_interval));
352 static TID_REQ *tr_msg_decode_tidreq(TALLOC_CTX *mem_ctx, json_t *jreq)
354 TID_REQ *treq = NULL;
355 json_t *jrp_realm = NULL;
356 json_t *jrealm = NULL;
357 json_t *jcomm = NULL;
358 json_t *jorig_coi = NULL;
360 json_t *jpath = NULL;
361 json_t *jexpire_interval = NULL;
363 if (!(treq =tid_req_new())) {
364 tr_crit("tr_msg_decode_tidreq(): Error allocating TID_REQ structure.");
367 talloc_steal(mem_ctx, treq);
369 /* store required fields from request */
370 if ((NULL == (jrp_realm = json_object_get(jreq, "rp_realm"))) ||
371 (NULL == (jrealm = json_object_get(jreq, "target_realm"))) ||
372 (NULL == (jcomm = json_object_get(jreq, "community")))) {
373 tr_notice("tr_msg_decode(): Error parsing required fields.");
378 jpath = json_object_get(jreq, "path");
379 jexpire_interval = json_object_get(jreq, "expiration_interval");
381 treq->rp_realm = tr_new_name((char *)json_string_value(jrp_realm));
382 treq->realm = tr_new_name((char *)json_string_value(jrealm));
383 treq->comm = tr_new_name((char *)json_string_value(jcomm));
385 /* Get DH Info from the request */
386 if (NULL == (jdh = json_object_get(jreq, "dh_info"))) {
387 tr_debug("tr_msg_decode(): Error parsing dh_info.");
391 treq->tidc_dh = tr_msg_decode_dh(jdh);
393 /* store optional "orig_coi" field */
394 if (NULL != (jorig_coi = json_object_get(jreq, "orig_coi"))) {
395 treq->orig_coi = tr_new_name((char *)json_string_value(jorig_coi));
398 treq->cons = (TR_CONSTRAINT_SET *) json_object_get(jreq, "constraints");
400 if (!tr_constraint_set_validate(treq->cons)) {
401 tr_debug("Constraint set validation failed");
405 json_incref((json_t *) treq->cons);
406 tid_req_cleanup_json(treq, (json_t *) treq->cons);
411 tid_req_cleanup_json(treq, jpath);
413 if (jexpire_interval)
414 treq->expiration_interval = json_integer_value(jexpire_interval);
419 static json_t *tr_msg_encode_one_server(TID_SRVR_BLK *srvr)
421 json_t *jsrvr = NULL;
423 gchar *time_str = g_time_val_to_iso8601(&srvr->key_expiration);
425 tr_debug("Encoding one server.");
427 jsrvr = json_object();
429 jstr = json_string(srvr->aaa_server_addr);
430 json_object_set_new(jsrvr, "server_addr", jstr);
432 json_object_set_new(jsrvr,
433 "key_expiration", json_string(time_str));
435 /* Server DH Block */
436 jstr = tr_name_to_json_string(srvr->key_name);
437 json_object_set_new(jsrvr, "key_name", jstr);
438 json_object_set_new(jsrvr, "server_dh", tr_msg_encode_dh(srvr->aaa_server_dh));
440 /* The path is owned by the srvr, so grab an extra ref*/
441 json_object_set(jsrvr, "path", (json_t *)(srvr->path));
445 static int tr_msg_decode_one_server(json_t *jsrvr, TID_SRVR_BLK *srvr)
447 json_t *jsrvr_addr = NULL;
448 json_t *jsrvr_kn = NULL;
449 json_t *jsrvr_dh = NULL;
450 json_t *jsrvr_expire = NULL;
456 if ((NULL == (jsrvr_addr = json_object_get(jsrvr, "server_addr"))) ||
457 (NULL == (jsrvr_kn = json_object_get(jsrvr, "key_name"))) ||
458 (NULL == (jsrvr_dh = json_object_get(jsrvr, "server_dh")))) {
459 tr_notice("tr_msg_decode_one_server(): Error parsing required fields.");
463 srvr->aaa_server_addr=talloc_strdup(srvr, json_string_value(jsrvr_addr));
464 srvr->key_name = tr_new_name((char *)json_string_value(jsrvr_kn));
465 srvr->aaa_server_dh = tr_msg_decode_dh(jsrvr_dh);
466 tid_srvr_blk_set_path(srvr, (TID_PATH *) json_object_get(jsrvr, "path"));
467 jsrvr_expire = json_object_get(jsrvr, "key_expiration");
468 if (jsrvr_expire && json_is_string(jsrvr_expire)) {
469 if (!g_time_val_from_iso8601(json_string_value(jsrvr_expire),
470 &srvr->key_expiration))
471 tr_notice("Key expiration %s cannot be parsed", json_string_value(jsrvr_expire));
477 static json_t *tr_msg_encode_servers(TID_RESP *resp)
479 json_t *jservers = NULL;
480 json_t *jsrvr = NULL;
481 TID_SRVR_BLK *srvr = NULL;
484 jservers = json_array();
486 tid_resp_servers_foreach(resp, srvr, index) {
487 if ((NULL == (jsrvr = tr_msg_encode_one_server(srvr))) ||
488 (-1 == json_array_append_new(jservers, jsrvr))) {
493 // tr_debug("tr_msg_encode_servers(): servers contains:");
494 // tr_debug("%s", json_dumps(jservers, 0));
498 static TID_SRVR_BLK *tr_msg_decode_servers(TALLOC_CTX *mem_ctx, json_t *jservers)
500 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
501 TID_SRVR_BLK *servers=NULL;
502 TID_SRVR_BLK *new_srvr=NULL;
504 size_t i, num_servers;
506 num_servers = json_array_size(jservers);
507 tr_debug("tr_msg_decode_servers(): Number of servers = %u.", (unsigned) num_servers);
509 if (0 == num_servers) {
510 tr_debug("tr_msg_decode_servers(): Server array is empty.");
514 for (i = 0; i < num_servers; i++) {
515 jsrvr = json_array_get(jservers, i);
517 new_srvr=tid_srvr_blk_new(tmp_ctx);
518 if (new_srvr==NULL) {
519 servers=NULL; /* it's all in tmp_ctx, so we can just let go */
523 if (0 != tr_msg_decode_one_server(jsrvr, new_srvr)) {
524 servers=NULL; /* it's all in tmp_ctx, so we can just let go */
528 tid_srvr_blk_add(servers, new_srvr);
531 talloc_steal(mem_ctx, servers);
534 talloc_free(tmp_ctx);
538 static json_t * tr_msg_encode_tidresp(TID_RESP *resp)
540 json_t *jresp = NULL;
542 json_t *jservers = NULL;
544 if ((!resp) || (!resp->rp_realm) || (!resp->realm) || !(resp->comm))
547 jresp = json_object();
549 if (TID_ERROR == resp->result) {
550 jstr = json_string("error");
551 json_object_set_new(jresp, "result", jstr);
553 jstr = tr_name_to_json_string(resp->err_msg);
554 json_object_set_new(jresp, "err_msg", jstr);
558 jstr = json_string("success");
559 json_object_set_new(jresp, "result", jstr);
562 jstr = tr_name_to_json_string(resp->rp_realm);
563 json_object_set_new(jresp, "rp_realm", jstr);
565 jstr = tr_name_to_json_string(resp->realm);
566 json_object_set_new(jresp, "target_realm", jstr);
568 jstr = tr_name_to_json_string(resp->comm);
569 json_object_set_new(jresp, "comm", jstr);
571 if (resp->orig_coi) {
572 jstr = tr_name_to_json_string(resp->orig_coi);
573 json_object_set_new(jresp, "orig_coi", jstr);
576 if (NULL == resp->servers) {
577 tr_debug("tr_msg_encode_tidresp(): No servers to encode.");
580 jservers = tr_msg_encode_servers(resp);
581 json_object_set_new(jresp, "servers", jservers);
583 if (resp->error_path)
584 json_object_set(jresp, "error_path", resp->error_path);
590 static TID_RESP *tr_msg_decode_tidresp(TALLOC_CTX *mem_ctx, json_t *jresp)
592 TID_RESP *tresp = NULL;
593 json_t *jresult = NULL;
594 json_t *jrp_realm = NULL;
595 json_t *jrealm = NULL;
596 json_t *jcomm = NULL;
597 json_t *jorig_coi = NULL;
598 json_t *jservers = NULL;
599 json_t *jerr_msg = NULL;
601 if (!(tresp=tid_resp_new(mem_ctx))) {
602 tr_crit("tr_msg_decode_tidresp(): Error allocating TID_RESP structure.");
606 /* store required fields from response */
607 if ((NULL == (jresult = json_object_get(jresp, "result"))) ||
608 (!json_is_string(jresult)) ||
609 (NULL == (jrp_realm = json_object_get(jresp, "rp_realm"))) ||
610 (!json_is_string(jrp_realm)) ||
611 (NULL == (jrealm = json_object_get(jresp, "target_realm"))) ||
612 (!json_is_string(jrealm)) ||
613 (NULL == (jcomm = json_object_get(jresp, "comm"))) ||
614 (!json_is_string(jcomm))) {
615 tr_debug("tr_msg_decode_tidresp(): Error parsing response.");
620 if (0 == (strcmp(json_string_value(jresult), "success"))) {
621 tr_debug("tr_msg_decode_tidresp(): Success! result = %s.", json_string_value(jresult));
622 if ((NULL != (jservers = json_object_get(jresp, "servers"))) ||
623 (!json_is_array(jservers))) {
624 tresp->servers = tr_msg_decode_servers(tresp, jservers);
630 tresp->result = TID_SUCCESS;
633 tresp->result = TID_ERROR;
634 tr_debug("tr_msg_decode_tidresp(): Error! result = %s.", json_string_value(jresult));
635 if ((NULL != (jerr_msg = json_object_get(jresp, "err_msg"))) ||
636 (!json_is_string(jerr_msg))) {
637 tresp->err_msg = tr_new_name(json_string_value(jerr_msg));
639 tresp->err_msg = tr_new_name("No error message set.");
641 if (NULL !=(tresp->error_path = json_object_get(jresp, "error_path")))
642 json_incref(tresp->error_path);
645 tresp->rp_realm = tr_new_name(json_string_value(jrp_realm));
646 tresp->realm = tr_new_name(json_string_value(jrealm));
647 tresp->comm = tr_new_name(json_string_value(jcomm));
649 /* store optional "orig_coi" field */
650 if ((NULL != (jorig_coi = json_object_get(jresp, "orig_coi"))) &&
651 (!json_is_object(jorig_coi))) {
652 tresp->orig_coi = tr_new_name(json_string_value(jorig_coi));
659 /* Information records for TRP update msg
660 * requires that jrec already be allocated */
661 static TRP_RC tr_msg_encode_inforec_route(json_t *jrec, TRP_INFOREC *rec)
670 if (trp_inforec_get_trust_router(rec)==NULL)
673 s=tr_name_strdup(trp_inforec_get_trust_router(rec));
680 json_object_set_new(jrec, "trust_router", jstr);
682 jint=json_integer(trp_inforec_get_metric(rec));
685 json_object_set_new(jrec, "metric", jint);
687 jint=json_integer(trp_inforec_get_interval(rec));
690 json_object_set_new(jrec, "interval", jint);
695 /* returns a json array */
696 static json_t *tr_msg_encode_apcs(TR_APC *apcs)
698 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
699 TR_APC_ITER *iter=tr_apc_iter_new(tmp_ctx);
711 for (apc=tr_apc_iter_first(iter, apcs); apc!=NULL; apc=tr_apc_iter_next(iter)) {
712 jid=tr_name_to_json_string(tr_apc_get_id(apc));
713 if ((jid==NULL) || (json_array_append_new(jarray, jid)!=0)) {
721 talloc_free(tmp_ctx);
725 static TR_APC *tr_msg_decode_apcs(TALLOC_CTX *mem_ctx, json_t *jarray, TRP_RC *rc)
727 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
729 TR_APC *apc_list=NULL;
735 for (ii=0; ii<json_array_size(jarray); ii++) {
736 jstr=json_array_get(jarray, ii);
737 new=tr_apc_new(tmp_ctx);
738 if ((jstr==NULL) || (new==NULL) || (!json_is_string(jstr))) {
739 apc_list=NULL; /* these are all in tmp_ctx, so they'll still get cleaned up */
743 tr_apc_set_id(new, tr_new_name(json_string_value(jstr)));
744 if (tr_apc_get_id(new)==NULL) {
745 apc_list=NULL; /* these are all in tmp_ctx, so they'll still get cleaned up */
749 tr_apc_add(apc_list, new);
755 talloc_steal(mem_ctx, apc_list);
758 talloc_free(tmp_ctx);
762 static TRP_RC tr_msg_encode_inforec_comm(json_t *jrec, TRP_INFOREC *rec)
767 const char *sconst=NULL;
768 TR_COMM_TYPE commtype=TR_COMM_UNKNOWN;
773 commtype=trp_inforec_get_comm_type(rec);
774 if (commtype==TR_COMM_UNKNOWN) {
775 tr_notice("tr_msg_encode_inforec_comm: unknown community type.");
778 sconst=tr_comm_type_to_str(commtype);
781 jstr=json_string(sconst);
784 json_object_set_new(jrec, "type", jstr);
786 sconst=tr_realm_role_to_str(trp_inforec_get_role(rec));
788 tr_notice("tr_msg_encode_inforec_comm: unknown realm role.");
791 jstr=json_string(sconst);
794 json_object_set_new(jrec, "role", jstr);
796 japcs=tr_msg_encode_apcs(trp_inforec_get_apcs(rec));
798 tr_notice("tr_msg_encode_inforec_comm: error encoding APCs.");
801 json_object_set_new(jrec, "apcs", japcs);
804 if (trp_inforec_get_owner_realm(rec)!=NULL) {
805 jstr=tr_name_to_json_string(trp_inforec_get_owner_realm(rec));
808 json_object_set_new(jrec, "owner_realm", jstr);
811 if (trp_inforec_get_owner_contact(rec)!=NULL) {
812 jstr=tr_name_to_json_string(trp_inforec_get_owner_contact(rec));
815 json_object_set_new(jrec, "owner_contact", jstr);
818 json_object_set(jrec, "provenance", trp_inforec_get_provenance(rec));
820 jint=json_integer(trp_inforec_get_interval(rec));
823 json_object_set_new(jrec, "interval", jint);
828 static json_t *tr_msg_encode_inforec(TRP_INFOREC *rec)
833 if ((rec==NULL) || (trp_inforec_get_type(rec)==TRP_INFOREC_TYPE_UNKNOWN))
840 jstr=json_string(trp_inforec_type_to_string(trp_inforec_get_type(rec)));
845 json_object_set_new(jrec, "record_type", jstr);
848 case TRP_INFOREC_TYPE_ROUTE:
849 if (TRP_SUCCESS!=tr_msg_encode_inforec_route(jrec, rec)) {
854 case TRP_INFOREC_TYPE_COMMUNITY:
855 if (TRP_SUCCESS!=tr_msg_encode_inforec_comm(jrec, rec)) {
867 static TRP_RC tr_msg_decode_trp_inforec_route(json_t *jrecord, TRP_INFOREC *rec)
869 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
874 rc=tr_msg_get_json_string(jrecord, "trust_router", &s, tmp_ctx);
875 if (rc != TRP_SUCCESS)
877 if (TRP_SUCCESS!=trp_inforec_set_trust_router(rec, tr_new_name(s))) {
881 talloc_free(s); s=NULL;
883 trp_inforec_set_next_hop(rec, NULL); /* make sure this is null (filled in later) */
885 rc=tr_msg_get_json_integer(jrecord, "metric", &num);
886 if ((rc != TRP_SUCCESS) || (TRP_SUCCESS!=trp_inforec_set_metric(rec,num)))
889 rc=tr_msg_get_json_integer(jrecord, "interval", &num);
890 if ((rc != TRP_SUCCESS) || (TRP_SUCCESS!=trp_inforec_set_interval(rec,num)))
894 talloc_free(tmp_ctx);
898 static TRP_RC tr_msg_decode_trp_inforec_comm(json_t *jrecord, TRP_INFOREC *rec)
900 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
906 rc=tr_msg_get_json_string(jrecord, "type", &s, tmp_ctx);
907 if (rc != TRP_SUCCESS)
909 if (TRP_SUCCESS!=trp_inforec_set_comm_type(rec, tr_comm_type_from_str(s))) {
913 talloc_free(s); s=NULL;
915 rc=tr_msg_get_json_string(jrecord, "role", &s, tmp_ctx);
916 if (rc != TRP_SUCCESS)
918 if (TRP_SUCCESS!=trp_inforec_set_role(rec, tr_realm_role_from_str(s))) {
922 talloc_free(s); s=NULL;
924 apcs=tr_msg_decode_apcs(rec, json_object_get(jrecord, "apcs"), &rc);
925 if (rc!=TRP_SUCCESS) {
929 trp_inforec_set_apcs(rec, apcs);
931 rc=tr_msg_get_json_integer(jrecord, "interval", &num);
932 tr_debug("tr_msg_decode_trp_inforec_comm: interval=%u", num);
933 if ((rc != TRP_SUCCESS) || (TRP_SUCCESS!=trp_inforec_set_interval(rec,num)))
936 trp_inforec_set_provenance(rec, json_object_get(jrecord, "provenance"));
939 rc=tr_msg_get_json_string(jrecord, "owner_realm", &s, tmp_ctx);
940 if (rc == TRP_SUCCESS) {
941 if (TRP_SUCCESS!=trp_inforec_set_owner_realm(rec, tr_new_name(s))) {
951 rc=tr_msg_get_json_string(jrecord, "owner_contact", &s, tmp_ctx);
952 if (rc == TRP_SUCCESS) {
953 if (TRP_SUCCESS!=trp_inforec_set_owner_contact(rec, tr_new_name(s))) {
964 talloc_free(tmp_ctx);
968 /* decode a single record */
969 static TRP_INFOREC *tr_msg_decode_trp_inforec(TALLOC_CTX *mem_ctx, json_t *jrecord)
971 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
972 TRP_INFOREC_TYPE rectype;
973 TRP_INFOREC *rec=NULL;
977 if (TRP_SUCCESS!=tr_msg_get_json_string(jrecord, "record_type", &s, tmp_ctx))
980 rectype=trp_inforec_type_from_string(s);
981 talloc_free(s); s=NULL;
983 rec=trp_inforec_new(tmp_ctx, rectype);
989 tr_debug("tr_msg_decode_trp_inforec: '%s' record found.", trp_inforec_type_to_string(rec->type));
991 switch(trp_inforec_get_type(rec)) {
992 case TRP_INFOREC_TYPE_ROUTE:
993 rc=tr_msg_decode_trp_inforec_route(jrecord, rec);
995 case TRP_INFOREC_TYPE_COMMUNITY:
996 rc=tr_msg_decode_trp_inforec_comm(jrecord, rec);
1003 talloc_steal(mem_ctx, rec);
1007 if (rc != TRP_SUCCESS) {
1008 trp_inforec_free(rec);
1011 talloc_free(tmp_ctx);
1015 /* TRP update msg */
1016 static json_t *tr_msg_encode_trp_upd(TRP_UPD *update)
1018 json_t *jupdate=NULL;
1019 json_t *jrecords=NULL;
1028 jupdate=json_object();
1032 s=tr_name_strdup(trp_upd_get_comm(update));
1034 json_decref(jupdate);
1037 jstr=json_string(s);
1040 json_decref(jupdate);
1043 json_object_set_new(jupdate, "community", jstr);
1045 s=tr_name_strdup(trp_upd_get_realm(update));
1047 json_decref(jupdate);
1050 jstr=json_string(s);
1053 json_decref(jupdate);
1056 json_object_set_new(jupdate, "realm", jstr);
1058 jrecords=json_array();
1059 if (jrecords==NULL) {
1060 json_decref(jupdate);
1063 json_object_set_new(jupdate, "records", jrecords); /* jrecords now a "borrowed" reference */
1064 for (rec=trp_upd_get_inforec(update); rec!=NULL; rec=trp_inforec_get_next(rec)) {
1065 tr_debug("tr_msg_encode_trp_upd: encoding inforec.");
1066 jrec=tr_msg_encode_inforec(rec);
1068 json_decref(jupdate); /* also decs jrecords and any elements */
1071 if (0!=json_array_append_new(jrecords, jrec)) {
1072 json_decref(jupdate); /* also decs jrecords and any elements */
1073 json_decref(jrec); /* this one did not get added so dec explicitly */
1081 /* Creates a linked list of records in the msg->body talloc context.
1082 * An error will be returned if any unparseable records are encountered.
1084 static TRP_UPD *tr_msg_decode_trp_upd(TALLOC_CTX *mem_ctx, json_t *jupdate)
1086 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
1087 json_t *jrecords=NULL;
1089 TRP_UPD *update=NULL;
1090 TRP_INFOREC *new_rec=NULL;
1091 TRP_INFOREC *list_tail=NULL;
1094 TRP_RC rc=TRP_ERROR;
1096 update=trp_upd_new(tmp_ctx);
1102 rc=tr_msg_get_json_string(jupdate, "community", &s, tmp_ctx);
1103 if (rc != TRP_SUCCESS) {
1104 tr_debug("tr_msg_decode_trp_upd: no community in TRP update message.");
1108 name=tr_new_name(s);
1110 tr_debug("tr_msg_decode_trp_upd: could not allocate community name.");
1114 talloc_free(s); s=NULL;
1115 trp_upd_set_comm(update, name);
1117 rc=tr_msg_get_json_string(jupdate, "realm", &s, tmp_ctx);
1118 if (rc != TRP_SUCCESS) {
1119 tr_debug("tr_msg_decode_trp_upd: no realm in TRP update message.");
1123 name=tr_new_name(s);
1125 tr_debug("tr_msg_decode_trp_upd: could not allocate realm name.");
1129 talloc_free(s); s=NULL;
1130 trp_upd_set_realm(update, name);
1132 jrecords=json_object_get(jupdate, "records");
1133 if ((jrecords==NULL) || (!json_is_array(jrecords))) {
1138 tr_debug("tr_msg_decode_trp_upd: found %d records", json_array_size(jrecords));
1139 /* process the array */
1140 for (ii=0; ii<json_array_size(jrecords); ii++) {
1141 new_rec=tr_msg_decode_trp_inforec(update, json_array_get(jrecords, ii));
1142 if (new_rec==NULL) {
1147 if (list_tail==NULL)
1148 trp_upd_set_inforec(update, new_rec); /* first is a special case */
1150 trp_inforec_set_next(list_tail, new_rec);
1155 /* Succeeded. Move new allocations into the correct talloc context */
1156 talloc_steal(mem_ctx, update);
1160 talloc_free(tmp_ctx);
1161 if (rc!=TRP_SUCCESS)
1166 static json_t *tr_msg_encode_trp_req(TRP_REQ *req)
1175 jbody=json_object();
1179 if ((NULL==trp_req_get_comm(req))
1180 || (NULL==trp_req_get_realm(req))) {
1185 s=tr_name_strdup(trp_req_get_comm(req)); /* ensures null termination */
1190 jstr=json_string(s);
1196 json_object_set_new(jbody, "community", jstr);
1198 s=tr_name_strdup(trp_req_get_realm(req)); /* ensures null termination */
1203 jstr=json_string(s);
1209 json_object_set_new(jbody, "realm", jstr);
1214 static TRP_REQ *tr_msg_decode_trp_req(TALLOC_CTX *mem_ctx, json_t *jreq)
1216 TALLOC_CTX *tmp_ctx=talloc_new(NULL);
1219 TRP_RC rc=TRP_ERROR;
1221 /* check message type and body type for agreement */
1222 req=trp_req_new(tmp_ctx);
1228 rc=tr_msg_get_json_string(jreq, "community", &s, tmp_ctx);
1229 if (rc!=TRP_SUCCESS)
1231 trp_req_set_comm(req, tr_new_name(s));
1232 talloc_free(s); s=NULL;
1234 rc=tr_msg_get_json_string(jreq, "realm", &s, tmp_ctx);
1235 if (rc!=TRP_SUCCESS)
1237 trp_req_set_realm(req, tr_new_name(s));
1238 talloc_free(s); s=NULL;
1241 talloc_steal(mem_ctx, req);
1244 talloc_free(tmp_ctx);
1245 if (rc!=TRP_SUCCESS)
1250 char *tr_msg_encode(TALLOC_CTX *mem_ctx, TR_MSG *msg)
1253 json_t *jmsg_type=NULL;
1254 char *encoded_tmp=NULL;
1256 TID_RESP *tidresp=NULL;
1257 TID_REQ *tidreq=NULL;
1258 TRP_UPD *trpupd=NULL;
1259 TRP_REQ *trpreq=NULL;
1260 MON_REQ *monreq=NULL;
1261 MON_RESP *monresp=NULL;
1263 /* TBD -- add error handling */
1264 jmsg = json_object();
1266 switch (msg->msg_type) {
1268 jmsg_type = json_string("tid_request");
1269 json_object_set_new(jmsg, "msg_type", jmsg_type);
1270 tidreq=tr_msg_get_req(msg);
1271 json_object_set_new(jmsg, "msg_body", tr_msg_encode_tidreq(tidreq));
1275 jmsg_type = json_string("tid_response");
1276 json_object_set_new(jmsg, "msg_type", jmsg_type);
1277 tidresp=tr_msg_get_resp(msg);
1278 json_object_set_new(jmsg, "msg_body", tr_msg_encode_tidresp(tidresp));
1282 jmsg_type = json_string("trp_update");
1283 json_object_set_new(jmsg, "msg_type", jmsg_type);
1284 trpupd=tr_msg_get_trp_upd(msg);
1285 json_object_set_new(jmsg, "msg_body", tr_msg_encode_trp_upd(trpupd));
1289 jmsg_type = json_string("trp_request");
1290 json_object_set_new(jmsg, "msg_type", jmsg_type);
1291 trpreq=tr_msg_get_trp_req(msg);
1292 json_object_set_new(jmsg, "msg_body", tr_msg_encode_trp_req(trpreq));
1296 jmsg_type = json_string("mon_request");
1297 json_object_set_new(jmsg, "msg_type", jmsg_type);
1298 monreq=tr_msg_get_mon_req(msg);
1299 json_object_set_new(jmsg, "msg_body", mon_req_encode(monreq));
1303 jmsg_type = json_string("mon_response");
1304 json_object_set_new(jmsg, "msg_type", jmsg_type);
1305 monresp=tr_msg_get_mon_resp(msg);
1306 json_object_set_new(jmsg, "msg_body", mon_resp_encode(monresp));
1314 /* We should perhaps use json_set_alloc_funcs to automatically use talloc, but for
1315 * now, we'll encode to a malloc'ed buffer, then copy that to a talloc'ed buffer. */
1316 encoded_tmp=json_dumps(jmsg, 0); // malloc'ed version
1317 json_decref(jmsg); // free the JSON structure
1318 encoded = talloc_strdup(mem_ctx, encoded_tmp); // get the talloc'ed version
1319 free(encoded_tmp); // free the malloc'ed version
1321 tr_debug("tr_msg_encode: outgoing msg=%s", encoded);
1325 TR_MSG *tr_msg_decode(TALLOC_CTX *mem_ctx, const char *jbuf, size_t buflen)
1328 json_t *jmsg = NULL;
1332 const char *mtype = NULL;
1334 if (NULL == (jmsg = json_loadb(jbuf, buflen, JSON_DISABLE_EOF_CHECK, &rc))) {
1335 tr_debug("tr_msg_decode(): error loading object");
1339 if (!(msg = talloc_zero(mem_ctx, TR_MSG))) {
1340 tr_debug("tr_msg_decode(): Error allocating TR_MSG structure.");
1345 if ((NULL == (jtype = json_object_get(jmsg, "msg_type"))) ||
1346 (NULL == (jbody = json_object_get(jmsg, "msg_body")))) {
1347 tr_debug("tr_msg_decode(): Error parsing message header.");
1349 tr_msg_free_decoded(msg);
1353 mtype = json_string_value(jtype);
1355 if (0 == strcmp(mtype, "tid_request")) {
1356 msg->msg_type = TID_REQUEST;
1357 tr_msg_set_req(msg, tr_msg_decode_tidreq(msg, jbody));
1359 else if (0 == strcmp(mtype, "tid_response")) {
1360 msg->msg_type = TID_RESPONSE;
1361 tr_msg_set_resp(msg, tr_msg_decode_tidresp(msg, jbody));
1363 else if (0 == strcmp(mtype, "trp_update")) {
1364 msg->msg_type = TRP_UPDATE;
1365 tr_msg_set_trp_upd(msg, tr_msg_decode_trp_upd(msg, jbody));
1367 else if (0 == strcmp(mtype, "trp_request")) {
1368 msg->msg_type = TRP_UPDATE;
1369 tr_msg_set_trp_req(msg, tr_msg_decode_trp_req(msg, jbody));
1371 else if (0 == strcmp(mtype, "mon_request")) {
1372 msg->msg_type = MON_REQUEST;
1373 tr_msg_set_mon_req(msg, mon_req_decode(msg, jbody));
1375 /* We do not currently handle monitoring responses */
1376 else if (0 == strcmp(mtype, "mon_response")) {
1377 msg->msg_type = MON_RESPONSE;
1378 tr_msg_set_mon_resp(msg, mon_resp_decode(msg, jbody));
1381 msg->msg_type = TR_UNKNOWN;
1382 msg->msg_rep = NULL;
1390 void tr_msg_free_encoded(char *jmsg)
1396 void tr_msg_free_decoded(TR_MSG *msg)