Added Requested Attributes sending and receiving support to
[silc.git] / lib / silcclient / client_keyagr.c
index 37f980034999bb43e7600f318da11237260bc0f1..3e9efd5fd9375df0773e79db6d5f8002d9216abe 100644 (file)
@@ -24,7 +24,8 @@
    and in protocol.c. This file implements the client-to-client key 
    agreement as defined by the SILC protocol. */
 
-#include "clientlibincludes.h"
+#include "silcincludes.h"
+#include "silcclient.h"
 #include "client_internal.h"
 
 SILC_TASK_CALLBACK(silc_client_key_agreement_final);
@@ -152,9 +153,9 @@ SILC_TASK_CALLBACK(silc_client_process_key_agreement)
 
   sock = silc_net_accept_connection(ke->fd);
   if (sock < 0) {
-    client->ops->say(client, conn, SILC_CLIENT_MESSAGE_AUDIT,
-                    "Could not accept key agreement connection: ", 
-                    strerror(errno));
+    client->internal->ops->say(client, conn, SILC_CLIENT_MESSAGE_AUDIT,
+                              "Could not accept key agreement connection: ", 
+                              strerror(errno));
     ke->client_entry->ke = NULL;
     ke->completion(ke->client, ke->conn, ke->client_entry, 
                   SILC_KEY_AGREEMENT_ERROR, NULL, ke->context);
@@ -180,8 +181,8 @@ SILC_TASK_CALLBACK(silc_client_process_key_agreement)
   /* Perform name and address lookups for the remote host. */
   silc_net_check_host_by_sock(sock, &newsocket->hostname, &newsocket->ip);
   if (!newsocket->hostname && !newsocket->ip) {
-    client->ops->say(client, conn, SILC_CLIENT_MESSAGE_AUDIT, 
-                    "Could not resolve the remote IP or hostname");
+    client->internal->ops->say(client, conn, SILC_CLIENT_MESSAGE_AUDIT, 
+                              "Could not resolve the remote IP or hostname");
     ke->client_entry->ke = NULL;
     ke->completion(ke->client, ke->conn, ke->client_entry, 
                   SILC_KEY_AGREEMENT_ERROR, NULL, ke->context);
@@ -298,7 +299,7 @@ void silc_client_send_key_agreement(SilcClient client,
                                    const char *hostname,
                                    const char *bindhost,
                                    int port,
-                                   uint32 timeout_secs,
+                                   SilcUInt32 timeout_secs,
                                    SilcKeyAgreementCallback completion,
                                    void *context)
 {
@@ -306,10 +307,20 @@ void silc_client_send_key_agreement(SilcClient client,
   SilcClientKeyAgreement ke = NULL;
   SilcBuffer buffer;
 
-  assert(client_entry);
+  if (!client_entry)
+    return;
 
-  if (client_entry->ke)
+  if (client_entry->ke) {
+    completion(client, conn, client_entry, SILC_KEY_AGREEMENT_ALREADY_STARTED,
+              NULL, context);
     return;
+  }
+
+  if (client_entry == conn->local_entry) {
+    completion(client, conn, client_entry, SILC_KEY_AGREEMENT_SELF_DENIED,
+              NULL, context);
+    return;
+  }
 
   /* Create the listener if hostname and port was provided.
    * also, use bindhost if it was specified.
@@ -324,13 +335,13 @@ void silc_client_send_key_agreement(SilcClient client,
       ke->fd = silc_net_create_server(port, hostname);
 
     if (ke->fd < 0) {
-      client->ops->say(client, conn, SILC_CLIENT_MESSAGE_ERROR, 
-                      "Cannot create listener on %s on port %d: %s", 
-                      (bindhost) ? bindhost:hostname, port, strerror(errno));
+      client->internal->ops->say(
+                    client, conn, SILC_CLIENT_MESSAGE_ERROR, 
+                    "Cannot create listener on %s on port %d: %s", 
+                    (bindhost) ? bindhost:hostname, port, strerror(errno));
       completion(client, conn, client_entry, SILC_KEY_AGREEMENT_FAILURE,
                 NULL, context);
       silc_free(ke);
-
       return;
     }
 
@@ -367,7 +378,6 @@ void silc_client_send_key_agreement(SilcClient client,
                          client_entry->id, SILC_ID_CLIENT, NULL, NULL,
                          buffer->data, buffer->len, FALSE);
   silc_buffer_free(buffer);
-
 }
 
 static int 
@@ -437,12 +447,12 @@ SILC_TASK_CALLBACK(silc_client_perform_key_agreement_start)
   if (opt != 0) {
     if (ctx->tries < 2) {
       /* Connection failed but lets try again */
-      client->ops->say(client, conn, SILC_CLIENT_MESSAGE_ERROR,
-                      "Could not connect to client %s: %s",
-                      ctx->host, strerror(opt));
-      client->ops->say(client, conn, SILC_CLIENT_MESSAGE_AUDIT, 
-                      "Connecting to port %d of client %s resumed", 
-                      ctx->port, ctx->host);
+      client->internal->ops->say(client, conn, SILC_CLIENT_MESSAGE_ERROR,
+                                "Could not connect to client %s: %s",
+                                ctx->host, strerror(opt));
+      client->internal->ops->say(client, conn, SILC_CLIENT_MESSAGE_AUDIT, 
+                                "Connecting to port %d of client %s resumed", 
+                                ctx->port, ctx->host);
 
       /* Unregister old connection try */
       silc_schedule_unset_listen_fd(client->schedule, fd);
@@ -454,9 +464,9 @@ SILC_TASK_CALLBACK(silc_client_perform_key_agreement_start)
       ctx->tries++;
     } else {
       /* Connection failed and we won't try anymore */
-      client->ops->say(client, conn, SILC_CLIENT_MESSAGE_ERROR,
-                      "Could not connect to client %s: %s",
-                      ctx->host, strerror(opt));
+      client->internal->ops->say(client, conn, SILC_CLIENT_MESSAGE_ERROR,
+                                "Could not connect to client %s: %s",
+                                ctx->host, strerror(opt));
       silc_schedule_unset_listen_fd(client->schedule, fd);
       silc_net_close_connection(fd);
       silc_schedule_task_del(client->schedule, ctx->task);
@@ -517,7 +527,20 @@ void silc_client_perform_key_agreement(SilcClient client,
 
   SILC_LOG_DEBUG(("Start"));
 
-  assert(client_entry && hostname && port);
+  if (!client_entry)
+    return;
+
+  if (!hostname || !port) {
+    completion(client, conn, client_entry, SILC_KEY_AGREEMENT_FAILURE,
+              NULL, context);
+    return;
+  }
+
+  if (client_entry == conn->local_entry) {
+    completion(client, conn, client_entry, SILC_KEY_AGREEMENT_SELF_DENIED,
+              NULL, context);
+    return;
+  }
 
   ke = silc_calloc(1, sizeof(*ke));
   ke->client = client;
@@ -555,7 +578,14 @@ void silc_client_perform_key_agreement_fd(SilcClient client,
 
   SILC_LOG_DEBUG(("Start"));
 
-  assert(client_entry);
+  if (!client_entry)
+    return;
+
+  if (client_entry == conn->local_entry) {
+    completion(client, conn, client_entry, SILC_KEY_AGREEMENT_SELF_DENIED,
+              NULL, context);
+    return;
+  }
 
   ke = silc_calloc(1, sizeof(*ke));
   ke->client = client;
@@ -613,7 +643,8 @@ void silc_client_abort_key_agreement(SilcClient client,
                                     SilcClientConnection conn,
                                     SilcClientEntry client_entry)
 {
-  assert(client_entry);
+  if (!client_entry)
+    return;
 
   if (client_entry->ke) {
     SilcClientKeyAgreement ke;
@@ -642,7 +673,7 @@ static void
 silc_client_key_agreement_resolve_cb(SilcClient client,
                                     SilcClientConnection conn,
                                     SilcClientEntry *clients,
-                                    uint32 clients_count,
+                                    SilcUInt32 clients_count,
                                     void *context)
 {
   SilcPacketContext *packet = (SilcPacketContext *)context;
@@ -661,7 +692,8 @@ silc_client_key_agreement_resolve_cb(SilcClient client,
     goto out;
 
   /* Call the key_agreement client operation */
-  ret = client->ops->key_agreement(client, conn, clients[0], 
+  ret = client->internal->ops->key_agreement(
+                                  client, conn, clients[0], 
                                   silc_key_agreement_get_hostname(payload),
                                   silc_key_agreement_get_port(payload),
                                   &completion, &completion_context);
@@ -701,6 +733,7 @@ void silc_client_key_agreement(SilcClient client,
     return;
 
   silc_client_get_client_by_id_resolve(client, sock->user_data, remote_id,
+                                      NULL,
                                       silc_client_key_agreement_resolve_cb,
                                       silc_packet_context_dup(packet));
   silc_free(remote_id);