Merge branch 'topic/format-cleanup' of git://valera-ext.nynaeve.net/silc into silc...

[silc.git] / apps / silcd / server.c

diff --git a/apps/silcd/server.c b/apps/silcd/server.c
index bb5b3b279e819a72d240fa388f5b8fb7610d0e0a..2ed570783b6030c8a28b4299859d0398a4c70555 100644 (file)
--- a/apps/silcd/server.c
+++ b/apps/silcd/server.c
@@ -201,6 +201,8 @@ static void silc_server_packet_eos(SilcPacketEngine engine,
 
   if (server->router_conn && server->router_conn->sock == stream &&
       !server->router && server->standalone) {
+    if (idata->sconn && idata->sconn->callback)
+      (*idata->sconn->callback)(server, NULL, idata->sconn->callback_context);
     silc_server_create_connections(server);
     silc_server_free_sock_user_data(server, stream, NULL);
   } else {
@@ -212,6 +214,8 @@ static void silc_server_packet_eos(SilcPacketEngine engine,
         server->backup_closed = TRUE;
     }
 
+    if (idata->sconn && idata->sconn->callback)
+      (*idata->sconn->callback)(server, NULL, idata->sconn->callback_context);
     silc_server_free_sock_user_data(server, stream, NULL);
   }
 
@@ -229,7 +233,10 @@ SILC_TASK_CALLBACK(silc_server_packet_error_timeout)
 
   if (server->router_conn && server->router_conn->sock == stream &&
       !server->router && server->standalone) {
+    if (idata->sconn && idata->sconn->callback)
+      (*idata->sconn->callback)(server, NULL, idata->sconn->callback_context);
     silc_server_create_connections(server);
+    silc_server_free_sock_user_data(server, stream, NULL);
   } else {
     /* If backup disconnected then mark that resuming will not be allowed */
      if (server->server_type == SILC_ROUTER && !server->backup_router &&
@@ -239,6 +246,8 @@ SILC_TASK_CALLBACK(silc_server_packet_error_timeout)
         server->backup_closed = TRUE;
     }
 
+    if (idata->sconn && idata->sconn->callback)
+      (*idata->sconn->callback)(server, NULL, idata->sconn->callback_context);
     silc_server_free_sock_user_data(server, stream, NULL);
   }
 
@@ -274,9 +283,14 @@ static void silc_server_packet_error(SilcPacketEngine engine,
   if (!silc_packet_stream_is_valid(stream))
     return;
 
+  /* In case we get here many times, register only one timeout */
+  silc_schedule_task_del_by_all(server->schedule, 0,
+                               silc_server_packet_error_timeout, stream);
+
+  /* Close connection with random timeout */
   silc_schedule_task_add_timeout(server->schedule,
-                                silc_server_packet_error_timeout,
-                                stream, 0, 0);
+                                silc_server_packet_error_timeout, stream,
+                                silc_rng_get_byte(server->rng) % 10, 0);
 }
 
 /* Packet stream callbacks */
@@ -698,6 +712,7 @@ void silc_server_free(SilcServer server)
   silc_free(server->local_list);
   silc_free(server->global_list);
   silc_free(server->server_name);
+  silc_free(server->id);
   silc_free(server);
 
   silc_hmac_unregister_all();
@@ -1322,7 +1337,8 @@ void silc_server_create_connection(SilcServer server,
   sconn->no_conf = dynamic;
   sconn->server = server;
 
-  SILC_LOG_DEBUG(("Created connection %p", sconn));
+  SILC_LOG_DEBUG(("Created connection %p to %s:%d", sconn,
+                 remote_host, port));
 
   silc_schedule_task_add_timeout(server->schedule, silc_server_connect_router,
                                 sconn, 0, 0);
@@ -1479,6 +1495,7 @@ silc_server_ke_auth_compl(SilcConnAuth connauth, SilcBool success,
     idata->status |= (SILC_IDLIST_STATUS_REGISTERED |
                      SILC_IDLIST_STATUS_LOCAL);
     idata->sconn = sconn;
+    idata->sconn->callback = NULL;
 
     /* Statistics */
     server->stat.my_routers++;
@@ -1591,21 +1608,23 @@ static void silc_server_ke_completed(SilcSKE ske, SilcSKEStatus status,
 {
   SilcPacketStream sock = context;
   SilcUnknownEntry entry = silc_packet_get_context(sock);
-  SilcServerConnection sconn = entry->data.sconn;
-  SilcServer server = entry->server;
-  SilcServerConfigRouter *conn = sconn->conn.ref_ptr;
+  SilcServerConnection sconn;
+  SilcServer server;
+  SilcServerConfigRouter *conn;
   SilcAuthMethod auth_meth = SILC_AUTH_NONE;
   void *auth_data = NULL;
   SilcUInt32 auth_data_len = 0;
   SilcConnAuth connauth;
   SilcCipher send_key, receive_key;
   SilcHmac hmac_send, hmac_receive;
-  SilcHash hash;
-
-  SILC_LOG_DEBUG(("Connection %p, SKE completed, entry %p", sconn, entry));
 
+  server = entry->server;
+  sconn = entry->data.sconn;
+  conn = sconn->conn.ref_ptr;
   entry->op = NULL;
 
+  SILC_LOG_DEBUG(("Connection %p, SKE completed, entry %p", sconn, entry));
+
   if (status != SILC_SKE_STATUS_OK) {
     /* SKE failed */
     SILC_LOG_ERROR(("Error (%s) during Key Exchange protocol with %s (%s)",
@@ -1633,7 +1652,7 @@ static void silc_server_ke_completed(SilcSKE ske, SilcSKEStatus status,
 
   /* Set the keys into use.  The data will be encrypted after this. */
   if (!silc_ske_set_keys(ske, keymat, prop, &send_key, &receive_key,
-                        &hmac_send, &hmac_receive, &hash)) {
+                        &hmac_send, &hmac_receive, NULL)) {
     silc_ske_free(ske);
 
     /* Try reconnecting if configuration wants it */
@@ -1787,6 +1806,8 @@ void silc_server_start_key_exchange(SilcServerConnection sconn)
   }
   entry->server = server;
   entry->data.sconn = sconn;
+  entry->data.conn_type = SILC_CONN_UNKNOWN;
+  entry->data.status |= SILC_IDLIST_STATUS_LOCAL;
   silc_packet_set_context(sconn->sock, entry);
 
   SILC_LOG_DEBUG(("Created unknown connection %p", entry));
@@ -2595,6 +2616,7 @@ silc_server_accept_auth_compl(SilcConnAuth connauth, SilcBool success,
   sconn->remote_port = port;
   silc_dlist_add(server->conns, sconn);
   idata->sconn = sconn;
+  idata->sconn->callback = NULL;
   idata->last_receive = time(NULL);
 
   /* Add the common data structure to the ID entry. */
@@ -2674,9 +2696,11 @@ silc_server_accept_completed(SilcSKE ske, SilcSKEStatus status,
   idata->rekey = rekey;
   idata->public_key = silc_pkcs_public_key_copy(prop->public_key);
   pk = silc_pkcs_public_key_encode(idata->public_key, &pk_len);
-  silc_hash_make(server->sha1hash, pk, pk_len, idata->fingerprint);
-
-  silc_hash_alloc(silc_hash_get_name(prop->hash), &idata->hash);
+  if (pk) {
+    silc_hash_make(server->sha1hash, pk, pk_len, idata->fingerprint);
+    silc_free(pk);
+  }
+  idata->hash = hash;
 
   SILC_LOG_DEBUG(("Starting connection authentication"));
   server->stat.auth_attempts++;
@@ -2809,6 +2833,7 @@ static void silc_server_accept_new_connection(SilcNetStatus status,
   entry->port = port;
   entry->server = server;
   entry->data.conn_type = SILC_CONN_UNKNOWN;
+  entry->data.status |= SILC_IDLIST_STATUS_LOCAL;
   silc_packet_set_context(packet_stream, entry);
 
   SILC_LOG_DEBUG(("Created unknown connection %p", entry));
@@ -2886,6 +2911,18 @@ static void silc_server_rekey_completion(SilcSKE ske,
                                 sock, idata->sconn->rekey_timeout, 0);
 }
 
+/* Helper to stop future rekeys on a link. */
+void silc_server_stop_rekey(SilcServer server, SilcClientEntry client)
+{
+  if (!client->connection)
+    return;
+
+  SILC_LOG_DEBUG(("Stopping rekey for client %p", client));
+
+  silc_schedule_task_del_by_all(server->schedule, 0, silc_server_do_rekey,
+                               client->connection);
+}
+
 /* Rekey callback.  Start rekey as initiator */
 
 SILC_TASK_CALLBACK(silc_server_do_rekey)
@@ -2898,7 +2935,7 @@ SILC_TASK_CALLBACK(silc_server_do_rekey)
   SILC_LOG_DEBUG(("Perform rekey, sock %p", sock));
 
   /* Do not execute rekey with disabled connections */
-  if (idata->status & SILC_IDLIST_STATUS_DISABLED)
+  if (idata->status & SILC_IDLIST_STATUS_DISABLED || !idata->rekey)
     return;
 
   /* If another protocol is active do not start rekey */
@@ -2962,6 +2999,11 @@ static void silc_server_rekey(SilcServer server, SilcPacketStream sock,
   SilcIDListData idata = silc_packet_get_context(sock);
   SilcSKE ske;
 
+  if (!idata->rekey) {
+    silc_packet_free(packet);
+    return;
+  }
+
   SILC_LOG_DEBUG(("Executing rekey protocol with %s:%d [%s], sock %p",
                  idata->sconn->remote_host, idata->sconn->remote_port,
                  SILC_CONNTYPE_STRING(idata->conn_type), sock));
@@ -3109,6 +3151,7 @@ void silc_server_free_client_data(SilcServer server,
 
   /* Update statistics */
   server->stat.my_clients--;
+  SILC_VERIFY(server->stat.clients > 0);
   server->stat.clients--;
   if (server->stat.cell_clients)
     server->stat.cell_clients--;
@@ -4987,7 +5030,7 @@ void silc_server_save_users_on_channel(SilcServer server,
     }
 
     if (!(client->data.status & SILC_IDLIST_STATUS_REGISTERED)) {
-      SILC_LOG_ERROR(("Attempting to add unregistered client to channel ",
+      SILC_LOG_ERROR(("Attempting to add unregistered client to channel "
                      "%s", channel->channel_name));
       continue;
     }