updates.
[silc.git] / apps / silcd / packet_receive.c
index eb3f94556926063c5530ca9b6abbb6a6c0aeeb94..e01f55f64ff58bbb8fdca196ee189299cce74124 100644 (file)
@@ -52,6 +52,24 @@ void silc_server_notify(SilcServer server,
       packet->src_id_type != SILC_ID_SERVER)
     return;
 
+  if (!packet->dst_id)
+    return;
+
+  /* If the packet is destined directly to a client then relay the packet
+     before processing it. */
+  if (packet->dst_id_type == SILC_ID_CLIENT) {
+    SilcIDListData idata;
+    SilcSocketConnection dst_sock;
+
+    /* Get the route to the client */
+    dst_sock = silc_server_get_client_route(server, packet->dst_id,
+                                           packet->dst_id_len, &idata);
+    if (dst_sock)
+      /* Relay the packet */
+      silc_server_relay_packet(server, dst_sock, idata->send_key,
+                              idata->hmac, packet, TRUE);
+  }
+
   /* If we are router and this packet is not already broadcast packet
      we will broadcast it. The sending socket really cannot be router or
      the router is buggy. If this packet is coming from router then it must
@@ -90,10 +108,10 @@ void silc_server_notify(SilcServer server,
       goto out;
 
     /* Get channel entry */
-    channel = silc_idlist_find_channel_by_id(server->local_list, 
+    channel = silc_idlist_find_channel_by_id(server->global_list, 
                                             channel_id, NULL);
     if (!channel) {
-      channel = silc_idlist_find_channel_by_id(server->global_list, 
+      channel = silc_idlist_find_channel_by_id(server->local_list, 
                                               channel_id, NULL);
       if (!channel) {
        silc_free(channel_id);
@@ -118,10 +136,10 @@ void silc_server_notify(SilcServer server,
     /* If the the client is not in local list we check global list (ie. the
        channel will be global channel) and if it does not exist then create
        entry for the client. */
-    client = silc_idlist_find_client_by_id(server->local_list, 
+    client = silc_idlist_find_client_by_id(server->global_list, 
                                           client_id, NULL);
     if (!client) {
-      client = silc_idlist_find_client_by_id(server->global_list, 
+      client = silc_idlist_find_client_by_id(server->local_list, 
                                             client_id, NULL);
       if (!client) {
        /* If router did not find the client the it is bogus */
@@ -171,11 +189,15 @@ void silc_server_notify(SilcServer server,
       goto out;
 
     /* Get channel entry */
-    channel = silc_idlist_find_channel_by_id(server->local_list, 
+    channel = silc_idlist_find_channel_by_id(server->global_list, 
                                             channel_id, NULL);
     if (!channel) { 
-      silc_free(channel_id);
-      goto out;
+      channel = silc_idlist_find_channel_by_id(server->local_list, 
+                                              channel_id, NULL);
+      if (!channel) {
+       silc_free(channel_id);
+       goto out;
+      }
     }
 
     /* Get client ID */
@@ -246,7 +268,7 @@ void silc_server_notify(SilcServer server,
       tmp = NULL;
 
     /* Remove the client from all channels */
-    silc_server_remove_from_channels(server, NULL, client, tmp);
+    silc_server_remove_from_channels(server, NULL, client, TRUE, tmp, TRUE);
 
     /* Remove the client entry */
     if (!silc_idlist_del_client(server->global_list, client))
@@ -266,10 +288,10 @@ void silc_server_notify(SilcServer server,
       goto out;
 
     /* Get channel entry */
-    channel = silc_idlist_find_channel_by_id(server->local_list, 
+    channel = silc_idlist_find_channel_by_id(server->global_list, 
                                             channel_id, NULL);
     if (!channel) {
-      channel = silc_idlist_find_channel_by_id(server->global_list, 
+      channel = silc_idlist_find_channel_by_id(server->local_list, 
                                               channel_id, NULL);
       if (!channel) {
        silc_free(channel_id);
@@ -342,7 +364,7 @@ void silc_server_notify(SilcServer server,
 
        /* Send the NICK_CHANGE notify type to local clients on the channels
           this client is joined to. */
-       silc_server_send_notify_on_channels(server, client, 
+       silc_server_send_notify_on_channels(server, NULL, client, 
                                            SILC_NOTIFY_TYPE_NICK_CHANGE, 2,
                                            id, tmp_len, 
                                            id2, tmp_len);
@@ -367,10 +389,10 @@ void silc_server_notify(SilcServer server,
       goto out;
 
     /* Get channel entry */
-    channel = silc_idlist_find_channel_by_id(server->local_list, 
+    channel = silc_idlist_find_channel_by_id(server->global_list, 
                                             channel_id, NULL);
     if (!channel) {
-      channel = silc_idlist_find_channel_by_id(server->global_list, 
+      channel = silc_idlist_find_channel_by_id(server->local_list, 
                                               channel_id, NULL);
       if (!channel) {
        silc_free(channel_id);
@@ -410,10 +432,10 @@ void silc_server_notify(SilcServer server,
       goto out;
 
     /* Get channel entry */
-    channel = silc_idlist_find_channel_by_id(server->local_list, 
+    channel = silc_idlist_find_channel_by_id(server->global_list, 
                                             channel_id, NULL);
     if (!channel) {
-      channel = silc_idlist_find_channel_by_id(server->global_list, 
+      channel = silc_idlist_find_channel_by_id(server->local_list, 
                                               channel_id, NULL);
       if (!channel) {
        silc_free(channel_id);
@@ -492,10 +514,10 @@ void silc_server_notify(SilcServer server,
       goto out;
 
     /* Get channel entry */
-    channel = silc_idlist_find_channel_by_id(server->local_list, 
+    channel = silc_idlist_find_channel_by_id(server->global_list, 
                                             channel_id, NULL);
     if (!channel) {
-      channel = silc_idlist_find_channel_by_id(server->global_list, 
+      channel = silc_idlist_find_channel_by_id(server->local_list, 
                                               channel_id, NULL);
       if (!channel) {
        silc_free(channel_id);
@@ -518,10 +540,10 @@ void silc_server_notify(SilcServer server,
                                       packet->buffer->len, FALSE);
 
     /* If the the client is not in local list we check global list */
-    client = silc_idlist_find_client_by_id(server->local_list, 
+    client = silc_idlist_find_client_by_id(server->global_list, 
                                           client_id, NULL);
     if (!client) {
-      client = silc_idlist_find_client_by_id(server->global_list, 
+      client = silc_idlist_find_client_by_id(server->local_list, 
                                             client_id, NULL);
       if (!client) {
        silc_free(client_id);
@@ -534,6 +556,105 @@ void silc_server_notify(SilcServer server,
 
     break;
 
+  case SILC_NOTIFY_TYPE_KILLED:
+    {
+      /* 
+       * Distribute the notify to local clients on channels
+       */
+      unsigned char *id;
+      unsigned int id_len;
+    
+      SILC_LOG_DEBUG(("KILLED notify"));
+      
+      /* Get client ID */
+      id = silc_argument_get_arg_type(args, 1, &id_len);
+      if (!id)
+       goto out;
+      client_id = silc_id_payload_parse_id(id, id_len);
+      if (!client_id)
+       goto out;
+
+      /* If the the client is not in local list we check global list */
+      client = silc_idlist_find_client_by_id(server->global_list, 
+                                            client_id, NULL);
+      if (!client) {
+       client = silc_idlist_find_client_by_id(server->local_list, 
+                                              client_id, NULL);
+       if (!client) {
+         silc_free(client_id);
+         goto out;
+       }
+      }
+      silc_free(client_id);
+
+      /* If the client is one of ours, then close the connection to the
+        client now. This removes the client from all channels as well. */
+      if (packet->dst_id_type == SILC_ID_CLIENT && client->data.registered &&
+         client->connection) {
+       sock = client->connection;
+       silc_server_free_client_data(server, NULL, client, FALSE, NULL);
+       silc_server_close_connection(server, sock);
+       break;
+      }
+
+      /* Get comment */
+      tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
+      if (tmp_len > 128)
+       tmp = NULL;
+
+      /* Send the notify to local clients on the channels except to the
+        client who is killed. */
+      silc_server_send_notify_on_channels(server, client, client,
+                                         SILC_NOTIFY_TYPE_KILLED, 
+                                         tmp ? 2 : 1,
+                                         id, id_len, 
+                                         tmp, tmp_len);
+
+      /* Remove the client from all channels */
+      silc_server_remove_from_channels(server, NULL, client, FALSE, NULL, 
+                                      FALSE);
+
+      break;
+    }
+
+  case SILC_NOTIFY_TYPE_UMODE_CHANGE:
+    /*
+     * Save the mode of the client.
+     */
+
+    SILC_LOG_DEBUG(("UMODE_CHANGE notify"));
+      
+    /* Get client ID */
+    tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
+    if (!tmp)
+      goto out;
+    client_id = silc_id_payload_parse_id(tmp, tmp_len);
+    if (!client_id)
+      goto out;
+
+    /* Get client entry */
+    client = silc_idlist_find_client_by_id(server->global_list, 
+                                          client_id, NULL);
+    if (!client) {
+      client = silc_idlist_find_client_by_id(server->local_list, 
+                                            client_id, NULL);
+      if (!client) {
+       silc_free(client_id);
+       goto out;
+      }
+    }
+    silc_free(client_id);
+
+    /* Get the mode */
+    tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
+    if (!tmp)
+      goto out;
+
+    /* Save the mode */
+    SILC_GET32_MSB(client->mode, tmp);
+
+    break;
+
     /* Ignore rest of the notify types for now */
   case SILC_NOTIFY_TYPE_NONE:
   case SILC_NOTIFY_TYPE_MOTD:
@@ -609,10 +730,7 @@ void silc_server_private_message(SilcServer server,
                                 SilcSocketConnection sock,
                                 SilcPacketContext *packet)
 {
-  SilcClientID *id;
-  SilcServerEntry router;
   SilcSocketConnection dst_sock;
-  SilcClientEntry client;
   SilcIDListData idata;
 
   SILC_LOG_DEBUG(("Start"));
@@ -624,78 +742,15 @@ void silc_server_private_message(SilcServer server,
   if (!packet->dst_id)
     return;
 
-  /* Decode destination Client ID */
-  id = silc_id_str2id(packet->dst_id, packet->dst_id_len, SILC_ID_CLIENT);
-  if (!id) {
-    SILC_LOG_ERROR(("Could not decode destination Client ID, dropped"));
-    return;
-  }
-
-  /* If the destination belongs to our server we don't have to route
-     the message anywhere but to send it to the local destination. */
-  client = silc_idlist_find_client_by_id(server->local_list, id, NULL);
-  if (client) {
-    /* It exists, now deliver the message to the destination */
-    dst_sock = (SilcSocketConnection)client->connection;
-
-    /* If we are router and the client has router then the client is in
-       our cell but not directly connected to us. */
-    if (server->server_type == SILC_ROUTER && client->router) {
-      /* We are of course in this case the client's router thus the real
-        "router" of the client is the server who owns the client. Thus
-        we will send the packet to that server. */
-      router = (SilcServerEntry)client->router;
-      idata = (SilcIDListData)router;
-
-      silc_server_send_private_message(server, router->connection,
-                                      idata->send_key,
-                                      idata->hmac,
-                                      packet);
-      return;
-    }
-
-    /* Seems that client really is directly connected to us */
-    idata = (SilcIDListData)client;
-    silc_server_send_private_message(server, dst_sock, 
-                                    idata->send_key,
-                                    idata->hmac, packet);
-    return;
-  }
-
-  /* Destination belongs to someone not in this server. If we are normal
-     server our action is to send the packet to our router. */
-  if (server->server_type == SILC_SERVER && !server->standalone) {
-    router = server->router;
-
-    /* Send to primary route */
-    if (router) {
-      dst_sock = (SilcSocketConnection)router->connection;
-      idata = (SilcIDListData)router;
-      silc_server_send_private_message(server, dst_sock, 
-                                      idata->send_key,
-                                      idata->hmac, packet);
-    }
+  /* Get the route to the client */
+  dst_sock = silc_server_get_client_route(server, packet->dst_id,
+                                         packet->dst_id_len, &idata);
+  if (!dst_sock)
     return;
-  }
 
-  /* We are router and we will perform route lookup for the destination 
-     and send the message to fastest route. */
-  if (server->server_type == SILC_ROUTER && !server->standalone) {
-    /* Check first that the ID is valid */
-    client = silc_idlist_find_client_by_id(server->global_list, id, NULL);
-    if (client) {
-      dst_sock = silc_server_route_get(server, id, SILC_ID_CLIENT);
-      router = (SilcServerEntry)dst_sock->user_data;
-      idata = (SilcIDListData)router;
-
-      /* Get fastest route and send packet. */
-      if (router)
-       silc_server_send_private_message(server, dst_sock, 
-                                        idata->send_key,
-                                        idata->hmac, packet);
-      return;
-    }
-  }
+  /* Send the private message */
+  silc_server_send_private_message(server, dst_sock, idata->send_key,
+                                  idata->hmac, packet);
 }
 
 /* Received private message key packet.. This packet is never for us. It is to
@@ -707,10 +762,7 @@ void silc_server_private_message_key(SilcServer server,
                                     SilcSocketConnection sock,
                                     SilcPacketContext *packet)
 {
-  SilcClientID *id;
-  SilcServerEntry router;
   SilcSocketConnection dst_sock;
-  SilcClientEntry client;
   SilcIDListData idata;
 
   SILC_LOG_DEBUG(("Start"));
@@ -722,77 +774,15 @@ void silc_server_private_message_key(SilcServer server,
   if (!packet->dst_id)
     return;
 
-  /* Decode destination Client ID */
-  id = silc_id_str2id(packet->dst_id, packet->dst_id_len, SILC_ID_CLIENT);
-  if (!id) {
-    SILC_LOG_ERROR(("Could not decode destination Client ID, dropped"));
+  /* Get the route to the client */
+  dst_sock = silc_server_get_client_route(server, packet->dst_id,
+                                         packet->dst_id_len, &idata);
+  if (!dst_sock)
     return;
-  }
-
-  /* If the destination belongs to our server we don't have to route
-     the message anywhere but to send it to the local destination. */
-  client = silc_idlist_find_client_by_id(server->local_list, id, NULL);
-  if (client) {
-    /* It exists, now deliver the message to the destination */
-    dst_sock = (SilcSocketConnection)client->connection;
-
-    /* If we are router and the client has router then the client is in
-       our cell but not directly connected to us. */
-    if (server->server_type == SILC_ROUTER && client->router) {
-      /* We are of course in this case the client's router thus the real
-        "router" of the client is the server who owns the client. Thus
-        we will send the packet to that server. */
-      router = (SilcServerEntry)client->router;
-      idata = (SilcIDListData)router;
-      silc_server_send_private_message_key(server, router->connection,
-                                          idata->send_key,
-                                          idata->hmac,
-                                          packet);
-      return;
-    }
 
-    /* Seems that client really is directly connected to us */
-    idata = (SilcIDListData)client;
-    silc_server_send_private_message_key(server, dst_sock, 
-                                        idata->send_key,
-                                        idata->hmac, packet);
-    return;
-  }
-
-  /* Destination belongs to someone not in this server. If we are normal
-     server our action is to send the packet to our router. */
-  if (server->server_type == SILC_SERVER && !server->standalone) {
-    router = server->router;
-
-    /* Send to primary route */
-    if (router) {
-      dst_sock = (SilcSocketConnection)router->connection;
-      idata = (SilcIDListData)router;
-      silc_server_send_private_message_key(server, dst_sock, 
-                                          idata->send_key,
-                                          idata->hmac, packet);
-    }
-    return;
-  }
-
-  /* We are router and we will perform route lookup for the destination 
-     and send the packet to fastest route. */
-  if (server->server_type == SILC_ROUTER && !server->standalone) {
-    /* Check first that the ID is valid */
-    client = silc_idlist_find_client_by_id(server->global_list, id, NULL);
-    if (client) {
-      dst_sock = silc_server_route_get(server, id, SILC_ID_CLIENT);
-      router = (SilcServerEntry)dst_sock->user_data;
-      idata = (SilcIDListData)router;
-
-      /* Get fastest route and send packet. */
-      if (router)
-       silc_server_send_private_message_key(server, dst_sock, 
-                                            idata->send_key,
-                                            idata->hmac, packet);
-      return;
-    }
-  }
+  /* Relay the packet */
+  silc_server_relay_packet(server, dst_sock, idata->send_key,
+                          idata->hmac, packet, FALSE);
 }
 
 /* Processes incoming command reply packet. The command reply packet may
@@ -940,10 +930,11 @@ void silc_server_channel_message(SilcServer server,
     
     /* Encode new payload. This encrypts it also. */
     SILC_GET16_MSB(data_len, packet->buffer->data);
-    chp = silc_channel_payload_encode(data_len, packet->buffer->data + 2,
-                                     iv_len, channel->iv,
-                                     channel->channel_key,
-                                     channel->hmac, server->rng);
+    chp = silc_channel_message_payload_encode(data_len, 
+                                             packet->buffer->data + 2,
+                                             iv_len, channel->iv,
+                                             channel->channel_key,
+                                             channel->hmac, server->rng);
     silc_buffer_put(packet->buffer, chp->data, chp->len);
     silc_buffer_free(chp);
   }
@@ -1043,6 +1034,9 @@ SilcClientEntry silc_server_new_client(SilcServer server,
   silc_id_create_client_id(server->id, server->rng, server->md5hash,
                           username, &client_id);
 
+  if (strlen(username) > 128)
+    username[127] = '\0';
+
   /* Update client entry */
   idata->registered = TRUE;
   client->nickname = strdup(username);
@@ -1442,11 +1436,12 @@ void silc_server_new_channel(SilcServer server,
                             SilcSocketConnection sock,
                             SilcPacketContext *packet)
 {
-  unsigned char *id;
+  SilcChannelPayload payload;
   SilcChannelID *channel_id;
-  unsigned short channel_id_len;
   char *channel_name;
-  int ret;
+  unsigned int name_len;
+  unsigned char *id;
+  unsigned int id_len;
 
   SILC_LOG_DEBUG(("Processing New Channel"));
 
@@ -1455,23 +1450,23 @@ void silc_server_new_channel(SilcServer server,
       server->server_type == SILC_SERVER)
     return;
 
-  /* Parse payload */
-  ret = silc_buffer_unformat(packet->buffer, 
-                            SILC_STR_UI16_STRING_ALLOC(&channel_name),
-                            SILC_STR_UI16_NSTRING_ALLOC(&id, &channel_id_len),
-                            SILC_STR_END);
-  if (ret == -1) {
-    if (channel_name)
-      silc_free(channel_name);
-    if (id)
-      silc_free(id);
+  /* Parse the channel payload */
+  payload = silc_channel_payload_parse(packet->buffer);
+  if (!payload)
     return;
-  }
     
-  /* Decode the channel ID */
-  channel_id = silc_id_str2id(id, channel_id_len, SILC_ID_CHANNEL);
-  if (!channel_id)
+  /* Get the channel ID */
+  channel_id = silc_channel_get_id_parse(payload);
+  if (!channel_id) {
+    silc_channel_payload_free(payload);
     return;
+  }
+
+  channel_name = silc_channel_get_name(payload, &name_len);
+  if (name_len > 256)
+    channel_name[255] = '\0';
+
+  id = silc_channel_get_id(payload, &id_len);
 
   if (sock->type == SILC_SOCKET_TYPE_ROUTER) {
     /* Add the server to global list as it is coming from router. It 
@@ -1481,8 +1476,9 @@ void silc_server_new_channel(SilcServer server,
                    silc_id_render(channel_id, SILC_ID_CHANNEL), 
                    sock->hostname));
     
-    silc_idlist_add_channel(server->global_list, channel_name, 0, channel_id, 
-                           server->router->connection, NULL, NULL);
+    silc_idlist_add_channel(server->global_list, strdup(channel_name), 
+                           0, channel_id, server->router->connection, 
+                           NULL, NULL);
 
     server->stat.channels++;
   } else {
@@ -1509,11 +1505,14 @@ void silc_server_new_channel(SilcServer server,
       channel = silc_server_create_new_channel_with_id(server, NULL, NULL,
                                                       channel_name,
                                                       channel_id, FALSE);
-      if (!channel)
+      if (!channel) {
+       silc_channel_payload_free(payload);
+       silc_free(channel_id);
        return;
+      }
 
       /* Send the new channel key to the server */
-      chk = silc_channel_key_payload_encode(channel_id_len, id,
+      chk = silc_channel_key_payload_encode(id_len, id,
                                            strlen(channel->channel_key->
                                                   cipher->name),
                                            channel->channel_key->cipher->name,
@@ -1547,7 +1546,7 @@ void silc_server_new_channel(SilcServer server,
       silc_server_send_channel_key(server, sock, channel, FALSE);
 
       /* Send to the server */
-      chk = silc_channel_key_payload_encode(channel_id_len, id,
+      chk = silc_channel_key_payload_encode(id_len, id,
                                            strlen(channel->channel_key->
                                                   cipher->name),
                                            channel->channel_key->cipher->name,
@@ -1556,6 +1555,7 @@ void silc_server_new_channel(SilcServer server,
       silc_server_packet_send(server, sock, SILC_PACKET_CHANNEL_KEY, 0, 
                              chk->data, chk->len, FALSE);
       silc_buffer_free(chk);
+      silc_free(channel_id);
 
       /* Since the channel is coming from server and we also know about it
         then send the JOIN notify to the server so that it see's our
@@ -1563,8 +1563,6 @@ void silc_server_new_channel(SilcServer server,
       /* XXX TODO **/
     }
   }
-
-  silc_free(id);
 }
 
 /* Received New Channel List packet, list of New Channel List payloads inside
@@ -1624,14 +1622,14 @@ void silc_server_new_channel_list(SilcServer server,
        (len2 > buffer->truelen))
       break;
 
-    silc_buffer_pull_tail(buffer, 4 + len1 + len2);
-    silc_buffer_put(buffer, packet->buffer->data, 4 + len1 + len2);
+    silc_buffer_pull_tail(buffer, 8 + len1 + len2);
+    silc_buffer_put(buffer, packet->buffer->data, 8 + len1 + len2);
 
     /* Process the New Channel */
     silc_server_new_channel(server, sock, new);
 
-    silc_buffer_push_tail(buffer, 4 + len1 + len2);
-    silc_buffer_pull(packet->buffer, 4 + len1 + len2);
+    silc_buffer_push_tail(buffer, 8 + len1 + len2);
+    silc_buffer_pull(packet->buffer, 8 + len1 + len2);
   }
 
   silc_buffer_free(buffer);
@@ -1647,10 +1645,7 @@ void silc_server_key_agreement(SilcServer server,
                               SilcSocketConnection sock,
                               SilcPacketContext *packet)
 {
-  SilcClientID *id;
-  SilcServerEntry router;
   SilcSocketConnection dst_sock;
-  SilcClientEntry client;
   SilcIDListData idata;
 
   SILC_LOG_DEBUG(("Start"));
@@ -1662,75 +1657,13 @@ void silc_server_key_agreement(SilcServer server,
   if (!packet->dst_id)
     return;
 
-  /* Decode destination Client ID */
-  id = silc_id_str2id(packet->dst_id, packet->dst_id_len, SILC_ID_CLIENT);
-  if (!id) {
-    SILC_LOG_ERROR(("Could not decode destination Client ID, dropped"));
+  /* Get the route to the client */
+  dst_sock = silc_server_get_client_route(server, packet->dst_id,
+                                         packet->dst_id_len, &idata);
+  if (!dst_sock)
     return;
-  }
-
-  /* If the destination belongs to our server we don't have to route
-     the message anywhere but to send it to the local destination. */
-  client = silc_idlist_find_client_by_id(server->local_list, id, NULL);
-  if (client) {
-    /* It exists, now deliver the message to the destination */
-    dst_sock = (SilcSocketConnection)client->connection;
-
-    /* If we are router and the client has router then the client is in
-       our cell but not directly connected to us. */
-    if (server->server_type == SILC_ROUTER && client->router) {
-      /* We are of course in this case the client's router thus the real
-        "router" of the client is the server who owns the client. Thus
-        we will send the packet to that server. */
-      router = (SilcServerEntry)client->router;
-      idata = (SilcIDListData)router;
-      silc_server_send_key_agreement(server, router->connection,
-                                    idata->send_key,
-                                    idata->hmac,
-                                    packet);
-      return;
-    }
 
-    /* Seems that client really is directly connected to us */
-    idata = (SilcIDListData)client;
-    silc_server_send_key_agreement(server, dst_sock, 
-                                  idata->send_key,
-                                  idata->hmac, packet);
-    return;
-  }
-
-  /* Destination belongs to someone not in this server. If we are normal
-     server our action is to send the packet to our router. */
-  if (server->server_type == SILC_SERVER && !server->standalone) {
-    router = server->router;
-
-    /* Send to primary route */
-    if (router) {
-      dst_sock = (SilcSocketConnection)router->connection;
-      idata = (SilcIDListData)router;
-      silc_server_send_key_agreement(server, dst_sock, 
-                                    idata->send_key,
-                                    idata->hmac, packet);
-    }
-    return;
-  }
-
-  /* We are router and we will perform route lookup for the destination 
-     and send the packet to fastest route. */
-  if (server->server_type == SILC_ROUTER && !server->standalone) {
-    /* Check first that the ID is valid */
-    client = silc_idlist_find_client_by_id(server->global_list, id, NULL);
-    if (client) {
-      dst_sock = silc_server_route_get(server, id, SILC_ID_CLIENT);
-      router = (SilcServerEntry)dst_sock->user_data;
-      idata = (SilcIDListData)router;
-
-      /* Get fastest route and send packet. */
-      if (router)
-       silc_server_send_key_agreement(server, dst_sock, 
-                                      idata->send_key,
-                                      idata->hmac, packet);
-      return;
-    }
-  }
+  /* Relay the packet */
+  silc_server_relay_packet(server, dst_sock, idata->send_key,
+                          idata->hmac, packet, FALSE);
 }