Merged silc_1_0_branch to trunk.
[silc.git] / apps / silcd / idlist.c
index 9cdbc223487148a4f8ab7a050fe8ec7aa453faba..2562c0f03d39ec1db2f4c252dd78a0fc9d0c0e38 100644 (file)
@@ -2,15 +2,15 @@
 
   idlist.c
 
-  Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
+  Author: Pekka Riikonen <priikone@silcnet.org>
 
-  Copyright (C) 1997 - 2001 Pekka Riikonen
+  Copyright (C) 1997 - 2003 Pekka Riikonen
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
-  
+
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
@@ -21,6 +21,7 @@
 
 #include "serverincludes.h"
 #include "idlist.h"
+#include "server_internal.h"
 
 /******************************************************************************
 
@@ -36,14 +37,19 @@ void silc_idlist_add_data(void *entry, SilcIDListData idata)
   SilcIDListData data = (SilcIDListData)entry;
   data->send_key = idata->send_key;
   data->receive_key = idata->receive_key;
-  data->rekey = idata->rekey;
-  data->hash = idata->hash;
   data->hmac_send = idata->hmac_send;
   data->hmac_receive = idata->hmac_receive;
+  data->psn_send = idata->psn_send;
+  data->psn_receive = idata->psn_receive;
+  data->hash = idata->hash;
   data->public_key = idata->public_key;
+  memcpy(data->fingerprint, idata->fingerprint, sizeof(data->fingerprint));
+  data->rekey = idata->rekey;
   data->last_receive = idata->last_receive;
   data->last_sent = idata->last_sent;
-  data->registered = idata->registered;
+  data->status = idata->status;
+
+  data->created = time(0);     /* Update creation time */
 }
 
 /* Free's all data in the common ID entry data structure. */
@@ -62,25 +68,37 @@ void silc_idlist_del_data(void *entry)
     }
     silc_free(idata->rekey);
   }
-  if (idata->hmac_send)                /* Same as idata->hmac_receive */
+  if (idata->hmac_send)
     silc_hmac_free(idata->hmac_send);
+  if (idata->hmac_receive)
+    silc_hmac_free(idata->hmac_receive);
+  if (idata->hash)
+    silc_hash_free(idata->hash);
   if (idata->public_key)
     silc_pkcs_public_key_free(idata->public_key);
+
+  idata->send_key = NULL;
+  idata->receive_key = NULL;
+  idata->rekey = NULL;
+  idata->hmac_send = NULL;
+  idata->hmac_receive = NULL;
+  idata->hash = NULL;
+  idata->public_key = NULL;
 }
 
 /* Purges ID cache */
 
 SILC_TASK_CALLBACK_GLOBAL(silc_idlist_purge)
 {
+  SilcServer server = app_context;
   SilcIDListPurge i = (SilcIDListPurge)context;
 
-  SILC_LOG_DEBUG(("Start"));
+  SILC_LOG_DEBUG(("Purging cache"));
 
   silc_idcache_purge(i->cache);
-  silc_task_register(i->timeout_queue, 0, 
-                    silc_idlist_purge,
-                    (void *)i, 600, 0,
-                    SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
+  silc_schedule_task_add(server->schedule, 0, silc_idlist_purge,
+                        (void *)i, i->timeout, 0,
+                        SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
 }
 
 /******************************************************************************
@@ -94,8 +112,8 @@ SILC_TASK_CALLBACK_GLOBAL(silc_idlist_purge)
    when new server connects to us. We also add ourselves to cache with
    this function. */
 
-SilcServerEntry 
-silc_idlist_add_server(SilcIDList id_list, 
+SilcServerEntry
+silc_idlist_add_server(SilcIDList id_list,
                       char *server_name, int server_type,
                       SilcServerID *id, SilcServerEntry router,
                       void *connection)
@@ -111,8 +129,8 @@ silc_idlist_add_server(SilcIDList id_list,
   server->router = router;
   server->connection = connection;
 
-  if (!silc_idcache_add(id_list->servers, server->server_name, 
-                       (void *)server->id, (void *)server, FALSE)) {
+  if (!silc_idcache_add(id_list->servers, server->server_name,
+                       (void *)server->id, (void *)server, 0, NULL)) {
     silc_free(server);
     return NULL;
   }
@@ -124,7 +142,7 @@ silc_idlist_add_server(SilcIDList id_list,
 
 SilcServerEntry
 silc_idlist_find_server_by_id(SilcIDList id_list, SilcServerID *id,
-                             SilcIDCacheEntry *ret_entry)
+                             bool registered, SilcIDCacheEntry *ret_entry)
 {
   SilcIDCacheEntry id_cache = NULL;
   SilcServerEntry server;
@@ -135,15 +153,21 @@ silc_idlist_find_server_by_id(SilcIDList id_list, SilcServerID *id,
   SILC_LOG_DEBUG(("Server ID (%s)",
                  silc_id_render(id, SILC_ID_SERVER)));
 
-  if (!silc_idcache_find_by_id_one(id_list->servers, (void *)id, 
+  if (!silc_idcache_find_by_id_one(id_list->servers, (void *)id,
                                   &id_cache))
     return NULL;
 
   server = (SilcServerEntry)id_cache->context;
 
+  if (server && registered &&
+      !(server->data.status & SILC_IDLIST_STATUS_REGISTERED))
+    return NULL;
+
   if (ret_entry)
     *ret_entry = id_cache;
 
+  SILC_LOG_DEBUG(("Found"));
+
   return server;
 }
 
@@ -151,7 +175,7 @@ silc_idlist_find_server_by_id(SilcIDList id_list, SilcServerID *id,
 
 SilcServerEntry
 silc_idlist_find_server_by_name(SilcIDList id_list, char *name,
-                               SilcIDCacheEntry *ret_entry)
+                               bool registered, SilcIDCacheEntry *ret_entry)
 {
   SilcIDCacheEntry id_cache = NULL;
   SilcServerEntry server;
@@ -162,7 +186,11 @@ silc_idlist_find_server_by_name(SilcIDList id_list, char *name,
     return NULL;
 
   server = (SilcServerEntry)id_cache->context;
-  
+
+  if (server && registered &&
+      !(server->data.status & SILC_IDLIST_STATUS_REGISTERED))
+    return NULL;
+
   if (ret_entry)
     *ret_entry = id_cache;
 
@@ -175,13 +203,14 @@ silc_idlist_find_server_by_name(SilcIDList id_list, char *name,
 
 SilcServerEntry
 silc_idlist_find_server_by_conn(SilcIDList id_list, char *hostname,
-                               int port, SilcIDCacheEntry *ret_entry)
+                               int port, bool registered,
+                               SilcIDCacheEntry *ret_entry)
 {
   SilcIDCacheList list = NULL;
   SilcIDCacheEntry id_cache = NULL;
   SilcServerEntry server = NULL;
   SilcSocketConnection sock;
+
   SILC_LOG_DEBUG(("Server by hostname %s and port %d", hostname, port));
 
   if (!silc_idcache_get_all(id_list->servers, &list))
@@ -195,10 +224,10 @@ silc_idlist_find_server_by_conn(SilcIDList id_list, char *hostname,
   while (id_cache) {
     server = (SilcServerEntry)id_cache->context;
     sock = (SilcSocketConnection)server->connection;
-    
+
     if (sock && ((sock->hostname && !strcasecmp(sock->hostname, hostname)) ||
                 (sock->ip && !strcasecmp(sock->ip, hostname)))
-       && sock->port == port)
+       && server->id->port == SILC_SWAB_16(port))
       break;
 
     id_cache = NULL;
@@ -207,9 +236,13 @@ silc_idlist_find_server_by_conn(SilcIDList id_list, char *hostname,
     if (!silc_idcache_list_next(list, &id_cache))
       break;
   }
-  
+
   silc_idcache_list_free(list);
 
+  if (server && registered &&
+      !(server->data.status & SILC_IDLIST_STATUS_REGISTERED))
+    return NULL;
+
   if (ret_entry)
     *ret_entry = id_cache;
 
@@ -218,7 +251,7 @@ silc_idlist_find_server_by_conn(SilcIDList id_list, char *hostname,
   return server;
 }
 
-/* Replaces old Server ID with new one */ 
+/* Replaces old Server ID with new one */
 
 SilcServerEntry
 silc_idlist_replace_server_id(SilcIDList id_list, SilcServerID *old_id,
@@ -232,18 +265,21 @@ silc_idlist_replace_server_id(SilcIDList id_list, SilcServerID *old_id,
 
   SILC_LOG_DEBUG(("Replacing Server ID"));
 
-  if (!silc_idcache_find_by_id_one(id_list->servers, (void *)old_id, 
+  if (!silc_idcache_find_by_id_one(id_list->servers, (void *)old_id,
                                   &id_cache))
     return NULL;
 
   server = (SilcServerEntry)id_cache->context;
+
+  /* Remove the old entry and add a new one */
+
+  silc_idcache_del_by_id(id_list->servers, (void *)server->id);
+
   silc_free(server->id);
   server->id = new_id;
 
-  /* Remove the old entry and add a new one */
-  silc_idcache_del_by_context(id_list->servers, server);
-  silc_idcache_add(id_list->servers, server->server_name, server->id, 
-                  server, FALSE);
+  silc_idcache_add(id_list->servers, server->server_name, server->id,
+                  server, 0, NULL);
 
   SILC_LOG_DEBUG(("Found"));
 
@@ -254,19 +290,22 @@ silc_idlist_replace_server_id(SilcIDList id_list, SilcServerID *old_id,
 
 int silc_idlist_del_server(SilcIDList id_list, SilcServerEntry entry)
 {
-  SILC_LOG_DEBUG(("Start"));
-
   if (entry) {
     /* Remove from cache */
-    if (entry->id)
-      if (!silc_idcache_del_by_id(id_list->servers, (void *)entry->id))
-       return FALSE;
+    if (!silc_idcache_del_by_context(id_list->servers, entry)) {
+      SILC_LOG_DEBUG(("Unknown server, did not delete"));
+      return FALSE;
+    }
+
+    SILC_LOG_DEBUG(("Deleting server %s id %s", entry->server_name ?
+                   entry->server_name : "",
+                   entry->id ?
+                   silc_id_render(entry->id, SILC_ID_SERVER) : ""));
 
     /* Free data */
-    if (entry->server_name)
-      silc_free(entry->server_name);
-    if (entry->id)
-      silc_free(entry->id);
+    silc_free(entry->server_name);
+    silc_free(entry->id);
+    silc_free(entry->server_info);
 
     memset(entry, 'F', sizeof(*entry));
     silc_free(entry);
@@ -292,9 +331,10 @@ int silc_idlist_del_server(SilcIDList id_list, SilcServerEntry entry)
    to be directly connected local client and `router' must be NULL. */
 
 SilcClientEntry
-silc_idlist_add_client(SilcIDList id_list, char *nickname, char *username, 
-                      char *userinfo, SilcClientID *id, 
-                      SilcServerEntry router, void *connection)
+silc_idlist_add_client(SilcIDList id_list, char *nickname, char *username,
+                      char *userinfo, SilcClientID *id,
+                      SilcServerEntry router, void *connection,
+                      int expire)
 {
   SilcClientEntry client;
 
@@ -310,8 +350,8 @@ silc_idlist_add_client(SilcIDList id_list, char *nickname, char *username,
   client->channels = silc_hash_table_alloc(3, silc_hash_ptr, NULL,
                                           NULL, NULL, NULL, NULL, TRUE);
 
-  if (!silc_idcache_add(id_list->clients, nickname, (void *)client->id, 
-                       (void *)client, FALSE)) {
+  if (!silc_idcache_add(id_list->clients, nickname, (void *)client->id,
+                       (void *)client, expire, NULL)) {
     silc_hash_table_free(client->channels);
     silc_free(client);
     return NULL;
@@ -329,19 +369,21 @@ int silc_idlist_del_client(SilcIDList id_list, SilcClientEntry entry)
 
   if (entry) {
     /* Remove from cache */
-    if (entry->id)
-      if (!silc_idcache_del_by_context(id_list->clients, entry))
-       return FALSE;
+    if (!silc_idcache_del_by_context(id_list->clients, entry)) {
+      SILC_LOG_DEBUG(("Unknown client, did not delete"));
+      return FALSE;
+    }
+
+    assert(!silc_hash_table_count(entry->channels));
 
     /* Free data */
-    if (entry->nickname)
-      silc_free(entry->nickname);
-    if (entry->username)
-      silc_free(entry->username);
-    if (entry->userinfo)
-      silc_free(entry->userinfo);
-    if (entry->id)
-      silc_free(entry->id);
+    silc_free(entry->nickname);
+    silc_free(entry->servername);
+    silc_free(entry->username);
+    silc_free(entry->userinfo);
+    silc_free(entry->id);
+    silc_free(entry->attrs);
+    silc_hash_table_free(entry->channels);
 
     memset(entry, 'F', sizeof(*entry));
     silc_free(entry);
@@ -356,35 +398,31 @@ int silc_idlist_del_client(SilcIDList id_list, SilcClientEntry entry)
    returned to `clients_count'. Caller must free the returned table. */
 
 int silc_idlist_get_clients_by_nickname(SilcIDList id_list, char *nickname,
-                                       char *server, 
+                                       char *server,
                                        SilcClientEntry **clients,
-                                       uint32 *clients_count)
+                                       SilcUInt32 *clients_count)
 {
   SilcIDCacheList list = NULL;
   SilcIDCacheEntry id_cache = NULL;
-  int i;
 
   SILC_LOG_DEBUG(("Start"));
 
   if (!silc_idcache_find_by_name(id_list->clients, nickname, &list))
     return FALSE;
 
-  *clients = silc_realloc(*clients, 
-                         (silc_idcache_list_count(list) + *clients_count) * 
+  *clients = silc_realloc(*clients,
+                         (silc_idcache_list_count(list) + *clients_count) *
                          sizeof(**clients));
 
-  i = 0;
   silc_idcache_list_first(list, &id_cache);
-  (*clients)[i++] = (SilcClientEntry)id_cache->context;
+  (*clients)[(*clients_count)++] = (SilcClientEntry)id_cache->context;
 
   while (silc_idcache_list_next(list, &id_cache))
-    (*clients)[i++] = (SilcClientEntry)id_cache->context;
-  
+    (*clients)[(*clients_count)++] = (SilcClientEntry)id_cache->context;
+
   silc_idcache_list_free(list);
-  
-  *clients_count += i;
 
-  SILC_LOG_DEBUG(("Found %d clients", *clients_count));
+  SILC_LOG_DEBUG(("Found total %d clients", *clients_count));
 
   return TRUE;
 }
@@ -395,17 +433,19 @@ int silc_idlist_get_clients_by_nickname(SilcIDList id_list, char *nickname,
 int silc_idlist_get_clients_by_hash(SilcIDList id_list, char *nickname,
                                    SilcHash md5hash,
                                    SilcClientEntry **clients,
-                                   uint32 *clients_count)
+                                   SilcUInt32 *clients_count)
 {
   SilcIDCacheList list = NULL;
   SilcIDCacheEntry id_cache = NULL;
   unsigned char hash[32];
-  int i;
   SilcClientID client_id;
+  char nick[128 + 1];
 
   SILC_LOG_DEBUG(("Start"));
 
-  silc_hash_make(md5hash, nickname, strlen(nickname), hash);
+  memset(nick, 0, sizeof(nick));
+  silc_to_lower(nickname, nick, sizeof(nick) - 1);
+  silc_hash_make(md5hash, nick, strlen(nick), hash);
 
   /* As the Client ID is hashed in the ID cache by hashing only the hash
      from the Client ID, we can do a lookup with only the hash not the
@@ -416,22 +456,19 @@ int silc_idlist_get_clients_by_hash(SilcIDList id_list, char *nickname,
   if (!silc_idcache_find_by_id(id_list->clients, &client_id, &list))
     return FALSE;
 
-  *clients = silc_realloc(*clients, 
-                         (silc_idcache_list_count(list) + *clients_count) * 
+  *clients = silc_realloc(*clients,
+                         (silc_idcache_list_count(list) + *clients_count) *
                          sizeof(**clients));
 
-  i = 0;
   silc_idcache_list_first(list, &id_cache);
-  (*clients)[i++] = (SilcClientEntry)id_cache->context;
+  (*clients)[(*clients_count)++] = (SilcClientEntry)id_cache->context;
 
   while (silc_idcache_list_next(list, &id_cache))
-    (*clients)[i++] = (SilcClientEntry)id_cache->context;
-  
+    (*clients)[(*clients_count)++] = (SilcClientEntry)id_cache->context;
+
   silc_idcache_list_free(list);
-  
-  *clients_count += i;
 
-  SILC_LOG_DEBUG(("Found %d clients", *clients_count));
+  SILC_LOG_DEBUG(("Found total %d clients", *clients_count));
 
   return TRUE;
 }
@@ -440,7 +477,7 @@ int silc_idlist_get_clients_by_hash(SilcIDList id_list, char *nickname,
 
 SilcClientEntry
 silc_idlist_find_client_by_id(SilcIDList id_list, SilcClientID *id,
-                             SilcIDCacheEntry *ret_entry)
+                             bool registered, SilcIDCacheEntry *ret_entry)
 {
   SilcIDCacheEntry id_cache = NULL;
   SilcClientEntry client;
@@ -448,21 +485,25 @@ silc_idlist_find_client_by_id(SilcIDList id_list, SilcClientID *id,
   if (!id)
     return NULL;
 
-  SILC_LOG_DEBUG(("Client ID (%s)", 
+  SILC_LOG_DEBUG(("Client ID (%s)",
                  silc_id_render(id, SILC_ID_CLIENT)));
 
   /* Do extended search since the normal ID comparison function for
      Client ID's compares only the hash from the Client ID and not the
      entire ID. The silc_hash_client_id_compare compares the entire
      Client ID as we want to find one specific Client ID. */
-  if (!silc_idcache_find_by_id_one_ext(id_list->clients, (void *)id, 
-                                      NULL, NULL, 
+  if (!silc_idcache_find_by_id_one_ext(id_list->clients, (void *)id,
+                                      NULL, NULL,
                                       silc_hash_client_id_compare, NULL,
                                       &id_cache))
     return NULL;
 
   client = (SilcClientEntry)id_cache->context;
 
+  if (client && registered &&
+      !(client->data.status & SILC_IDLIST_STATUS_REGISTERED))
+    return NULL;
+
   if (ret_entry)
     *ret_entry = id_cache;
 
@@ -474,8 +515,9 @@ silc_idlist_find_client_by_id(SilcIDList id_list, SilcClientID *id,
 /* Replaces old Client ID with new one */
 
 SilcClientEntry
-silc_idlist_replace_client_id(SilcIDList id_list, SilcClientID *old_id,
-                             SilcClientID *new_id)
+silc_idlist_replace_client_id(SilcServer server,
+                             SilcIDList id_list, SilcClientID *old_id,
+                             SilcClientID *new_id, const char *nickname)
 {
   SilcIDCacheEntry id_cache = NULL;
   SilcClientEntry client;
@@ -489,20 +531,37 @@ silc_idlist_replace_client_id(SilcIDList id_list, SilcClientID *old_id,
      Client ID's compares only the hash from the Client ID and not the
      entire ID. The silc_hash_client_id_compare compares the entire
      Client ID as we want to find one specific Client ID. */
-  if (!silc_idcache_find_by_id_one_ext(id_list->clients, (void *)old_id, 
-                                      NULL, NULL, 
+  if (!silc_idcache_find_by_id_one_ext(id_list->clients, (void *)old_id,
+                                      NULL, NULL,
                                       silc_hash_client_id_compare, NULL,
                                       &id_cache))
     return NULL;
 
   client = (SilcClientEntry)id_cache->context;
+
+  /* Remove the old entry and add a new one */
+
+  if (!silc_idcache_del_by_context(id_list->clients, client))
+    return NULL;
+
+  /* Check if anyone is watching old nickname */
+  if (server->server_type == SILC_ROUTER)
+    silc_server_check_watcher_list(server, client, nickname,
+                                  SILC_NOTIFY_TYPE_NICK_CHANGE);
+
   silc_free(client->id);
+  silc_free(client->nickname);
   client->id = new_id;
+  client->nickname = nickname ? strdup(nickname) : NULL;
 
-  /* Remove the old entry and add a new one */
-  silc_idcache_del_by_context(id_list->clients, client);
-  silc_idcache_add(id_list->clients, client->nickname, client->id, 
-                  client, FALSE);
+  /* Check if anyone is watching new nickname */
+  if (server->server_type == SILC_ROUTER)
+    silc_server_check_watcher_list(server, client, nickname,
+                                  SILC_NOTIFY_TYPE_NICK_CHANGE);
+
+  if (!silc_idcache_add(id_list->clients, client->nickname, client->id,
+                       client, 0, NULL))
+    return NULL;
 
   SILC_LOG_DEBUG(("Replaced"));
 
@@ -516,20 +575,17 @@ void silc_idlist_client_destructor(SilcIDCache cache,
 {
   SilcClientEntry client;
 
-  SILC_LOG_DEBUG(("Start"));
-
   client = (SilcClientEntry)entry->context;
   if (client) {
-    if (client->nickname)
-      silc_free(client->nickname);
-    if (client->username)
-      silc_free(client->username);
-    if (client->userinfo)
-      silc_free(client->userinfo);
-    if (client->id)
-      silc_free(client->id);
-
-    memset(client, 'F', sizeof(*client));
+    assert(!silc_hash_table_count(client->channels));
+    silc_free(client->nickname);
+    silc_free(client->username);
+    silc_free(client->userinfo);
+    silc_free(client->id);
+    silc_free(client->attrs);
+    silc_hash_table_free(client->channels);
+
+    memset(client, 'A', sizeof(*client));
     silc_free(client);
   }
 }
@@ -546,10 +602,13 @@ void silc_idlist_client_destructor(SilcIDCache cache,
 SilcChannelEntry
 silc_idlist_add_channel(SilcIDList id_list, char *channel_name, int mode,
                        SilcChannelID *id, SilcServerEntry router,
-                       SilcCipher channel_key, SilcHmac hmac)
+                       SilcCipher channel_key, SilcHmac hmac,
+                       int expire)
 {
   SilcChannelEntry channel;
 
+  SILC_LOG_DEBUG(("Adding new channel %s", channel_name));
+
   channel = silc_calloc(1, sizeof(*channel));
   channel->channel_name = channel_name;
   channel->mode = mode;
@@ -557,8 +616,9 @@ silc_idlist_add_channel(SilcIDList id_list, char *channel_name, int mode,
   channel->router = router;
   channel->channel_key = channel_key;
   channel->hmac = hmac;
+  channel->created = channel->updated = time(0);
   if (!channel->hmac)
-    if (!silc_hmac_alloc("hmac-sha1-96", NULL, &channel->hmac)) {
+    if (!silc_hmac_alloc(SILC_DEFAULT_HMAC, NULL, &channel->hmac)) {
       silc_free(channel);
       return NULL;
     }
@@ -566,8 +626,8 @@ silc_idlist_add_channel(SilcIDList id_list, char *channel_name, int mode,
   channel->user_list = silc_hash_table_alloc(3, silc_hash_ptr, NULL, NULL,
                                             NULL, NULL, NULL, TRUE);
 
-  if (!silc_idcache_add(id_list->channels, channel->channel_name, 
-                       (void *)channel->id, (void *)channel, FALSE)) {
+  if (!silc_idcache_add(id_list->channels, channel->channel_name,
+                       (void *)channel->id, (void *)channel, expire, NULL)) {
     silc_hmac_free(channel->hmac);
     silc_hash_table_free(channel->user_list);
     silc_free(channel);
@@ -585,9 +645,13 @@ static void silc_idlist_del_channel_foreach(void *key, void *context,
 {
   SilcChannelClientEntry chl = (SilcChannelClientEntry)context;
 
+  SILC_LOG_DEBUG(("Removing client %s from channel %s",
+                 chl->client->nickname ? chl->client->nickname :
+                 (unsigned char *)"", chl->channel->channel_name));
+
   /* Remove the context from the client's channel hash table as that
      table and channel's user_list hash table share this same context. */
-  silc_hash_table_del_by_context(chl->client->channels, chl->channel, chl);
+  silc_hash_table_del(chl->client->channels, chl->channel);
   silc_free(chl);
 }
 
@@ -595,40 +659,47 @@ static void silc_idlist_del_channel_foreach(void *key, void *context,
 
 int silc_idlist_del_channel(SilcIDList id_list, SilcChannelEntry entry)
 {
-  SILC_LOG_DEBUG(("Start"));
-
   if (entry) {
     /* Remove from cache */
-    if (entry->id)
-      if (!silc_idcache_del_by_id(id_list->channels, (void *)entry->id))
-       return FALSE;
+    if (!silc_idcache_del_by_context(id_list->channels, entry)) {
+      SILC_LOG_DEBUG(("Unknown channel, did not delete"));
+      return FALSE;
+    }
+
+    SILC_LOG_DEBUG(("Deleting channel %s", entry->channel_name));
+
+    /* Free all client entrys from the users list. The silc_hash_table_free
+       will free all the entries so they are not freed at the foreach
+       callback. */
+    silc_hash_table_foreach(entry->user_list, silc_idlist_del_channel_foreach,
+                           NULL);
+    silc_hash_table_free(entry->user_list);
 
     /* Free data */
-    if (entry->channel_name)
-      silc_free(entry->channel_name);
-    if (entry->id)
-      silc_free(entry->id);
-    if (entry->topic)
-      silc_free(entry->topic);
+    silc_free(entry->channel_name);
+    silc_free(entry->id);
+    silc_free(entry->topic);
+
+    if (entry->invite_list)
+      silc_hash_table_free(entry->invite_list);
+    if (entry->ban_list)
+      silc_hash_table_free(entry->ban_list);
+
     if (entry->channel_key)
       silc_cipher_free(entry->channel_key);
     if (entry->key) {
       memset(entry->key, 0, entry->key_len / 8);
       silc_free(entry->key);
     }
-    if (entry->cipher)
-      silc_free(entry->cipher);
-    if (entry->hmac_name)
-      silc_free(entry->hmac_name);
-    if (entry->rekey)
-      silc_free(entry->rekey);
-
-    /* Free all client entrys from the users list. The silc_hash_table_free
-       will free all the entries so they are not freed at the foreach 
-       callback. */
-    silc_hash_table_foreach(entry->user_list, silc_idlist_del_channel_foreach,
-                           NULL);
-    silc_hash_table_free(entry->user_list);
+    silc_free(entry->cipher);
+    if (entry->hmac)
+      silc_hmac_free(entry->hmac);
+    silc_free(entry->hmac_name);
+    silc_free(entry->rekey);
+    if (entry->founder_key)
+      silc_pkcs_public_key_free(entry->founder_key);
+    if (entry->channel_pubkeys)
+      silc_hash_table_free(entry->channel_pubkeys);
 
     memset(entry, 'F', sizeof(*entry));
     silc_free(entry);
@@ -647,7 +718,7 @@ silc_idlist_find_channel_by_name(SilcIDList id_list, char *name,
 {
   SilcIDCacheEntry id_cache = NULL;
 
-  SILC_LOG_DEBUG(("Channel by name"));
+  SILC_LOG_DEBUG(("Channel by name %s", name));
 
   if (!silc_idcache_find_by_name_one(id_list->channels, name, &id_cache))
     return NULL;
@@ -657,6 +728,9 @@ silc_idlist_find_channel_by_name(SilcIDList id_list, char *name,
 
   SILC_LOG_DEBUG(("Found"));
 
+  /* Touch channel */
+  ((SilcChannelEntry)id_cache->context)->updated = time(NULL);
+
   return id_cache->context;
 }
 
@@ -685,6 +759,9 @@ silc_idlist_find_channel_by_id(SilcIDList id_list, SilcChannelID *id,
 
   SILC_LOG_DEBUG(("Found"));
 
+  /* Touch channel */
+  channel->updated = time(NULL);
+
   return channel;
 }
 
@@ -703,21 +780,27 @@ silc_idlist_replace_channel_id(SilcIDList id_list, SilcChannelID *old_id,
 
   SILC_LOG_DEBUG(("Replacing Channel ID"));
 
-  if (!silc_idcache_find_by_id_one(id_list->channels, (void *)old_id, 
+  if (!silc_idcache_find_by_id_one(id_list->channels, (void *)old_id,
                                   &id_cache))
     return NULL;
 
   channel = (SilcChannelEntry)id_cache->context;
+
+  /* Remove the old entry and add a new one */
+
+  silc_idcache_del_by_id(id_list->channels, (void *)channel->id);
+
   silc_free(channel->id);
   channel->id = new_id;
 
-  /* Remove the old entry and add a new one */
-  silc_idcache_del_by_context(id_list->channels, channel);
-  silc_idcache_add(id_list->channels, channel->channel_name, channel->id, 
-                  channel, FALSE);
+  silc_idcache_add(id_list->channels, channel->channel_name, channel->id,
+                  channel, 0, NULL);
 
   SILC_LOG_DEBUG(("Replaced"));
 
+  /* Touch channel */
+  channel->updated = time(NULL);
+
   return channel;
 }
 
@@ -726,7 +809,7 @@ silc_idlist_replace_channel_id(SilcIDList id_list, SilcChannelID *old_id,
 
 SilcChannelEntry *
 silc_idlist_get_channels(SilcIDList id_list, SilcChannelID *channel_id,
-                        uint32 *channels_count)
+                        SilcUInt32 *channels_count)
 {
   SilcIDCacheList list = NULL;
   SilcIDCacheEntry id_cache = NULL;
@@ -740,14 +823,14 @@ silc_idlist_get_channels(SilcIDList id_list, SilcChannelID *channel_id,
       return NULL;
 
     channels = silc_calloc(silc_idcache_list_count(list), sizeof(*channels));
-    
+
     i = 0;
     silc_idcache_list_first(list, &id_cache);
     channels[i++] = (SilcChannelEntry)id_cache->context;
-    
+
     while (silc_idcache_list_next(list, &id_cache))
       channels[i++] = (SilcChannelEntry)id_cache->context;
-    
+
     silc_idcache_list_free(list);
   } else {
     if (!silc_idcache_find_by_id_one(id_list->channels, channel_id, &id_cache))