Merge pull request #100 from painless-security/milestone/monitoring

[trust_router.git] / trp / trp_peer_encoders.c

diff --git a/trp/trp_peer_encoders.c b/trp/trp_peer_encoders.c
new file mode 100644 (file)
index 0000000..552f440
--- /dev/null
+++ b/trp/trp_peer_encoders.c
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2016-2018, JANET(UK)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of JANET(UK) nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <talloc.h>
+#include <jansson.h>
+
+#include <tr_gss_names.h>
+#include <trp_peer.h>
+#include <tr_util.h>
+#include <tr_json_util.h>
+
+char *trp_peer_to_str(TALLOC_CTX *memctx, TRP_PEER *peer, const char *sep)
+{
+  if (sep==NULL)
+    sep=", ";
+  return talloc_asprintf(memctx,
+                         "%s:%u%s0x%04X",
+                         peer->server, peer->port, sep,
+                         peer->linkcost);
+}
+
+/* helper for encoding to json */
+static json_t *server_to_json_string(const char *server, int port)
+{
+  char *s = talloc_asprintf(NULL, "%s:%u", server, port);
+  json_t *jstr = json_string(s);
+  talloc_free(s);
+  return jstr;
+}
+
+static json_t *last_attempt_to_json_string(TRP_PEER *peer)
+{
+  struct timespec ts_zero = {0, 0};
+  char *s = NULL;
+  json_t *jstr = NULL;
+
+  if (tr_cmp_timespec(trp_peer_get_last_conn_attempt(peer), &ts_zero) > 0) {
+    s = timespec_to_str(trp_peer_get_last_conn_attempt(peer));
+
+    if (s) {
+      jstr = json_string(s);
+      free(s);
+    }
+  }
+
+  return jstr;
+}
+
+json_t *trp_peer_to_json(TRP_PEER *peer)
+{
+  json_t *peer_json = NULL;
+  json_t *retval = NULL;
+
+  peer_json = json_object();
+  if (peer_json == NULL)
+    goto cleanup;
+
+
+  OBJECT_SET_OR_FAIL(peer_json, "server",
+                     server_to_json_string(trp_peer_get_server(peer),
+                                           trp_peer_get_port(peer)));
+  OBJECT_SET_OR_FAIL(peer_json, "servicename",
+                     tr_name_to_json_string(trp_peer_get_servicename(peer)));
+  OBJECT_SET_OR_FAIL(peer_json, "linkcost",
+                     json_integer(trp_peer_get_linkcost(peer)));
+  OBJECT_SET_OR_FAIL(peer_json, "connected_to",
+                     json_boolean(trp_peer_get_outgoing_status(peer) == PEER_CONNECTED));
+  OBJECT_SET_OR_FAIL(peer_json, "connected_from",
+                     json_boolean(trp_peer_get_incoming_status(peer) == PEER_CONNECTED));
+  OBJECT_SET_OR_SKIP(peer_json, "last_connection_attempt",
+                     last_attempt_to_json_string(peer));
+  OBJECT_SET_OR_FAIL(peer_json, "allowed_credentials",
+                     tr_gss_names_to_json_array(trp_peer_get_gss_names(peer)));
+  OBJECT_SET_OR_FAIL(peer_json, "filters",
+                     tr_filter_set_to_json(peer->filters));
+
+  /* succeeded - set the return value and increment the reference count */
+  retval = peer_json;
+  json_incref(retval);
+
+cleanup:
+  if (peer_json)
+    json_decref(peer_json);
+  return retval;
+}