#include <talloc.h>
+#include <tr_apc.h>
+#include <tr_comm.h>
#include <tr_msg.h>
#include <trust_router/tr_name.h>
#include <trp_internal.h>
/* Read attribute attr from msg as a string. Copies string into mem_ctx context so jmsg can
* be destroyed safely. Returns nonzero on error. */
-static int tr_msg_get_json_string(json_t *jmsg, const char *attr, char **dest, TALLOC_CTX *mem_ctx)
+static TRP_RC tr_msg_get_json_string(json_t *jmsg, const char *attr, char **dest, TALLOC_CTX *mem_ctx)
{
json_t *obj;
obj=json_object_get(jmsg, attr);
if (obj == NULL)
- return -1;
+ return TRP_ERROR;
/* check type */
if (!json_is_string(obj))
- return -1;
+ return TRP_ERROR;
*dest=talloc_strdup(mem_ctx, json_string_value(obj));
if (*dest==NULL)
- return -1;
+ return TRP_ERROR;
- return 0;
+ return TRP_SUCCESS;
}
enum msg_type tr_msg_get_msg_type(TR_MSG *msg)
return TRP_SUCCESS;
}
+/* returns a json array */
+static json_t *tr_msg_encode_apcs(TR_APC *apcs)
+{
+ TALLOC_CTX *tmp_ctx=talloc_new(NULL);
+ TR_APC_ITER *iter=tr_apc_iter_new(tmp_ctx);
+ TR_APC *apc=NULL;
+ json_t *jarray=NULL;
+ json_t *jid=NULL;
+
+ if (iter==NULL)
+ goto cleanup;
+
+ jarray=json_array();
+ if (jarray==NULL)
+ goto cleanup;
+
+ for (apc=tr_apc_iter_first(iter, apcs); apc!=NULL; apc=tr_apc_iter_next(iter)) {
+ jid=tr_name_to_json_string(tr_apc_get_id(apc));
+ if ((jid==NULL) || (json_array_append_new(jarray, jid)!=0)) {
+ json_decref(jarray);
+ jarray=NULL;
+ goto cleanup;
+ }
+ }
+
+cleanup:
+ talloc_free(tmp_ctx);
+ return jarray;
+}
+
+static TR_APC *tr_msg_decode_apcs(TALLOC_CTX *mem_ctx, json_t *jarray, TRP_RC *rc)
+{
+ TALLOC_CTX *tmp_ctx=talloc_new(NULL);
+ size_t ii=0;
+ TR_APC *apc_list=NULL;
+ TR_APC *new=NULL;
+ json_t *jstr=NULL;
+
+ *rc=TRP_ERROR;
+
+ for (ii=0; ii<json_array_size(jarray); ii++) {
+ jstr=json_array_get(jarray, ii);
+ new=tr_apc_new(tmp_ctx);
+ if ((jstr==NULL) || (new==NULL) || (!json_is_string(jstr))) {
+ apc_list=NULL; /* these are all in tmp_ctx, so they'll still get cleaned up */
+ goto cleanup;
+ }
+
+ tr_apc_set_id(new, tr_new_name(json_string_value(jstr)));
+ if (tr_apc_get_id(new)==NULL) {
+ apc_list=NULL; /* these are all in tmp_ctx, so they'll still get cleaned up */
+ goto cleanup;
+ }
+
+ tr_apc_add(apc_list, new);
+ }
+
+ *rc=TRP_SUCCESS;
+
+ if (apc_list!=NULL)
+ talloc_steal(mem_ctx, apc_list);
+
+cleanup:
+ talloc_free(tmp_ctx);
+ return apc_list;
+}
+
+static TRP_RC tr_msg_encode_inforec_comm(json_t *jrec, TRP_INFOREC *rec)
+{
+ json_t *jstr=NULL;
+ json_t *jint=NULL;
+ json_t *japcs=NULL;
+ const char *sconst=NULL;
+ TR_COMM_TYPE commtype=TR_COMM_UNKNOWN;
+
+ if (rec==NULL)
+ return TRP_BADTYPE;
+
+ commtype=trp_inforec_get_comm_type(rec);
+ if (commtype==TR_COMM_UNKNOWN) {
+ tr_notice("tr_msg_encode_inforec_comm: unknown community type.");
+ return TRP_ERROR;
+ }
+ sconst=tr_comm_type_to_str(commtype);
+ if (sconst==NULL)
+ return TRP_ERROR;
+ jstr=json_string(sconst);
+ if(jstr==NULL)
+ return TRP_ERROR;
+ json_object_set_new(jrec, "type", jstr);
+
+ sconst=tr_realm_role_to_str(trp_inforec_get_role(rec));
+ if (sconst==NULL) {
+ tr_notice("tr_msg_encode_inforec_comm: unknown realm role.");
+ return TRP_ERROR;
+ }
+ jstr=json_string(sconst);
+ if(jstr==NULL)
+ return TRP_ERROR;
+ json_object_set_new(jrec, "role", jstr);
+
+ japcs=tr_msg_encode_apcs(trp_inforec_get_apcs(rec));
+ if (japcs==NULL) {
+ tr_notice("tr_msg_encode_inforec_comm: error encoding APCs.");
+ return TRP_ERROR;
+ }
+ json_object_set_new(jrec, "apcs", japcs);
+
+
+ if (trp_inforec_get_owner_realm(rec)!=NULL) {
+ jstr=tr_name_to_json_string(trp_inforec_get_owner_realm(rec));
+ if(jstr==NULL)
+ return TRP_ERROR;
+ json_object_set_new(jrec, "owner_realm", jstr);
+ }
+
+ if (trp_inforec_get_owner_contact(rec)!=NULL) {
+ jstr=tr_name_to_json_string(trp_inforec_get_owner_contact(rec));
+ if(jstr==NULL)
+ return TRP_ERROR;
+ json_object_set_new(jrec, "owner_contact", jstr);
+ }
+
+ json_object_set(jrec, "provenance", trp_inforec_get_provenance(rec));
+
+ jint=json_integer(trp_inforec_get_interval(rec));
+ if(jint==NULL)
+ return TRP_ERROR;
+ json_object_set_new(jrec, "interval", jint);
+
+ return TRP_SUCCESS;
+}
+
static json_t *tr_msg_encode_inforec(TRP_INFOREC *rec)
{
json_t *jrec=NULL;
return NULL;
}
break;
+ case TRP_INFOREC_TYPE_COMMUNITY:
+ if (TRP_SUCCESS!=tr_msg_encode_inforec_comm(jrec, rec)) {
+ json_decref(jrec);
+ return NULL;
+ }
+ break;
default:
json_decref(jrec);
return NULL;
return jrec;
}
-/* decode a single record */
-static TRP_INFOREC *tr_msg_decode_trp_inforec(TALLOC_CTX *mem_ctx, json_t *jrecord)
+static TRP_RC tr_msg_decode_trp_inforec_route(json_t *jrecord, TRP_INFOREC *rec)
{
TALLOC_CTX *tmp_ctx=talloc_new(NULL);
- TRP_INFOREC_TYPE rectype;
- TRP_INFOREC *rec=NULL;
TRP_RC rc=TRP_ERROR;
char *s=NULL;
int num=0;
-
- if (0!=tr_msg_get_json_string(jrecord, "record_type", &s, tmp_ctx))
- goto cleanup;
- rectype=trp_inforec_type_from_string(s);
+ rc=tr_msg_get_json_string(jrecord, "trust_router", &s, tmp_ctx);
+ if (rc != TRP_SUCCESS)
+ goto cleanup;
+ if (TRP_SUCCESS!=trp_inforec_set_trust_router(rec, tr_new_name(s))) {
+ rc=TRP_ERROR;
+ goto cleanup;
+ }
talloc_free(s); s=NULL;
- rec=trp_inforec_new(tmp_ctx, rectype);
- if (rec==NULL) {
- rc=TRP_NOMEM;
+ trp_inforec_set_next_hop(rec, NULL); /* make sure this is null (filled in later) */
+
+ rc=tr_msg_get_json_integer(jrecord, "metric", &num);
+ if ((rc != TRP_SUCCESS) || (TRP_SUCCESS!=trp_inforec_set_metric(rec,num)))
goto cleanup;
- }
- /* We only support route_info records for now*/
- if (trp_inforec_get_type(rec)!=TRP_INFOREC_TYPE_ROUTE) {
- rc=TRP_UNSUPPORTED;
+ rc=tr_msg_get_json_integer(jrecord, "interval", &num);
+ if ((rc != TRP_SUCCESS) || (TRP_SUCCESS!=trp_inforec_set_interval(rec,num)))
goto cleanup;
- }
- tr_debug("tr_msg_decode_trp_inforec: '%s' record found.", trp_inforec_type_to_string(rec->type));
+cleanup:
+ talloc_free(tmp_ctx);
+ return rc;
+}
- rc=tr_msg_get_json_string(jrecord, "trust_router", &s, tmp_ctx);
+static TRP_RC tr_msg_decode_trp_inforec_comm(json_t *jrecord, TRP_INFOREC *rec)
+{
+ TALLOC_CTX *tmp_ctx=talloc_new(NULL);
+ TRP_RC rc=TRP_ERROR;
+ char *s=NULL;
+ int num=0;
+ TR_APC *apcs=NULL;
+
+ rc=tr_msg_get_json_string(jrecord, "type", &s, tmp_ctx);
if (rc != TRP_SUCCESS)
goto cleanup;
- if (TRP_SUCCESS!=trp_inforec_set_trust_router(rec, tr_new_name(s)))
+ if (TRP_SUCCESS!=trp_inforec_set_comm_type(rec, tr_comm_type_from_str(s))) {
+ rc=TRP_ERROR;
goto cleanup;
+ }
talloc_free(s); s=NULL;
- trp_inforec_set_next_hop(rec, NULL); /* make sure this is null (filled in later) */
+ rc=tr_msg_get_json_string(jrecord, "role", &s, tmp_ctx);
+ if (rc != TRP_SUCCESS)
+ goto cleanup;
+ if (TRP_SUCCESS!=trp_inforec_set_role(rec, tr_realm_role_from_str(s))) {
+ rc=TRP_ERROR;
+ goto cleanup;
+ }
+ talloc_free(s); s=NULL;
- rc=tr_msg_get_json_integer(jrecord, "metric", &num);
- if ((rc != TRP_SUCCESS) || (TRP_SUCCESS!=trp_inforec_set_metric(rec,num)))
+ apcs=tr_msg_decode_apcs(rec, json_object_get(jrecord, "apcs"), &rc);
+ if (rc!=TRP_SUCCESS) {
+ rc=TRP_ERROR;
goto cleanup;
+ }
+ trp_inforec_set_apcs(rec, apcs);
rc=tr_msg_get_json_integer(jrecord, "interval", &num);
+ tr_debug("tr_msg_decode_trp_inforec_comm: interval=%u", num);
if ((rc != TRP_SUCCESS) || (TRP_SUCCESS!=trp_inforec_set_interval(rec,num)))
goto cleanup;
+ trp_inforec_set_provenance(rec, json_object_get(jrecord, "provenance"));
+
+ /* optional */
+ rc=tr_msg_get_json_string(jrecord, "owner_realm", &s, tmp_ctx);
+ if (rc == TRP_SUCCESS) {
+ if (TRP_SUCCESS!=trp_inforec_set_owner_realm(rec, tr_new_name(s))) {
+ rc=TRP_ERROR;
+ goto cleanup;
+ }
+ if (s!=NULL) {
+ talloc_free(s);
+ s=NULL;
+ }
+ }
+
+ rc=tr_msg_get_json_string(jrecord, "owner_contact", &s, tmp_ctx);
+ if (rc == TRP_SUCCESS) {
+ if (TRP_SUCCESS!=trp_inforec_set_owner_contact(rec, tr_new_name(s))) {
+ rc=TRP_ERROR;
+ goto cleanup;
+ }
+ if (s!=NULL) {
+ talloc_free(s);
+ s=NULL;
+ }
+ }
+
+cleanup:
+ talloc_free(tmp_ctx);
+ return rc;
+}
+
+/* decode a single record */
+static TRP_INFOREC *tr_msg_decode_trp_inforec(TALLOC_CTX *mem_ctx, json_t *jrecord)
+{
+ TALLOC_CTX *tmp_ctx=talloc_new(NULL);
+ TRP_INFOREC_TYPE rectype;
+ TRP_INFOREC *rec=NULL;
+ TRP_RC rc=TRP_ERROR;
+ char *s=NULL;
+
+ if (TRP_SUCCESS!=tr_msg_get_json_string(jrecord, "record_type", &s, tmp_ctx))
+ goto cleanup;
+
+ rectype=trp_inforec_type_from_string(s);
+ talloc_free(s); s=NULL;
+
+ rec=trp_inforec_new(tmp_ctx, rectype);
+ if (rec==NULL) {
+ rc=TRP_NOMEM;
+ goto cleanup;
+ }
+
+ tr_debug("tr_msg_decode_trp_inforec: '%s' record found.", trp_inforec_type_to_string(rec->type));
+
+ switch(trp_inforec_get_type(rec)) {
+ case TRP_INFOREC_TYPE_ROUTE:
+ rc=tr_msg_decode_trp_inforec_route(jrecord, rec);
+ break;
+ case TRP_INFOREC_TYPE_COMMUNITY:
+ rc=tr_msg_decode_trp_inforec_comm(jrecord, rec);
+ break;
+ default:
+ rc=TRP_UNSUPPORTED;
+ goto cleanup;
+ }
+
talloc_steal(mem_ctx, rec);
rc=TRP_SUCCESS;
}
encoded=json_dumps(jmsg, 0);
+ tr_debug("tr_msg_encode: outgoing msg=%s", encoded);
json_decref(jmsg);
return encoded;
}
projects / trust_router.git / blobdiff