SilcChannelClientEntry chl, chl2;
SilcHashTableList htl, htl2;
- SILC_LOG_DEBUG(("Start"));
-
if (!client)
return;
+ SILC_LOG_DEBUG(("Remove client from all channels"));
+
if (silc_hash_table_find(clients, client, NULL, NULL))
silc_hash_table_del(clients, client);
/* Remove channel if this is last client leaving the channel, unless
the channel is permanent. */
- if (server->server_type == SILC_ROUTER &&
+ if (server->server_type != SILC_SERVER &&
silc_hash_table_count(channel->user_list) < 2) {
if (silc_hash_table_find(channels, channel, NULL, NULL))
silc_hash_table_del(channels, channel);
/* If there is not at least one local user on the channel then we don't
need the channel entry anymore, we can remove it safely, unless the
channel is permanent channel */
- if (server->server_type != SILC_ROUTER &&
+ if (server->server_type == SILC_SERVER &&
!silc_server_channel_has_local(channel)) {
if (silc_hash_table_find(channels, channel, NULL, NULL))
silc_hash_table_del(channels, channel);
silc_hash_table_list_reset(&htl);
}
-/* This function is used to remove all client entries by the server `entry'.
- This is called when the connection is lost to the server. In this case
- we must invalidate all the client entries owned by the server `entry'.
- If the `server_signoff' is TRUE then the SERVER_SIGNOFF notify is
+/* This function removes all client entries that are originated from
+ `router' and are owned by `entry'. `router' and `entry' can be same
+ too. If `server_signoff' is TRUE then SERVER_SIGNOFF notify is
distributed to our local clients. */
-bool silc_server_remove_clients_by_server(SilcServer server,
+bool silc_server_remove_clients_by_server(SilcServer server,
+ SilcServerEntry router,
SilcServerEntry entry,
bool server_signoff)
{
SilcHashTable channels, clients;
int i;
- SILC_LOG_DEBUG(("Start"));
+ if (!(entry->data.status & SILC_IDLIST_STATUS_REGISTERED))
+ return FALSE;
+
+ SILC_LOG_DEBUG(("Removing clients by %s",
+ entry->server_name ? entry->server_name : "server"));
+
+ if (!router)
+ router = entry;
/* Allocate the hash table that holds the channels that require
channel key re-generation after we've removed this server's clients
}
if (silc_idcache_get_all(server->local_list->clients, &list)) {
-
if (silc_idcache_list_first(list, &id_cache)) {
while (id_cache) {
client = (SilcClientEntry)id_cache->context;
- if (!(client->data.status & SILC_IDLIST_STATUS_REGISTERED)) {
- if (!silc_idcache_list_next(list, &id_cache))
- break;
- else
- continue;
- }
- if (client->router != entry) {
+ /* If client is not registered, is not originated from `router'
+ or is not owned by `entry', skip it. */
+ if (!(client->data.status & SILC_IDLIST_STATUS_REGISTERED) ||
+ client->router != router ||
+ (router != entry && !SILC_ID_COMPARE(client->id, entry->id,
+ client->id->ip.data_len))) {
if (!silc_idcache_list_next(list, &id_cache))
break;
else
client->data.status &= ~SILC_IDLIST_STATUS_REGISTERED;
id_cache->expire = SILC_ID_CACHE_EXPIRE_DEF;
} else {
+ silc_idlist_del_data(client);
silc_idlist_del_client(server->local_list, client);
}
if (silc_idcache_list_first(list, &id_cache)) {
while (id_cache) {
client = (SilcClientEntry)id_cache->context;
- if (!(client->data.status & SILC_IDLIST_STATUS_REGISTERED)) {
- if (!silc_idcache_list_next(list, &id_cache))
- break;
- else
- continue;
- }
-
- if (client->router != entry) {
+
+ /* If client is not registered, is not originated from `router'
+ or is not owned by `entry', skip it. */
+ if (!(client->data.status & SILC_IDLIST_STATUS_REGISTERED) ||
+ client->router != router ||
+ (router != entry && !SILC_ID_COMPARE(client->id, entry->id,
+ client->id->ip.data_len))) {
if (!silc_idcache_list_next(list, &id_cache))
break;
else
client->data.status &= ~SILC_IDLIST_STATUS_REGISTERED;
id_cache->expire = SILC_ID_CACHE_EXPIRE_DEF;
} else {
+ silc_idlist_del_data(client);
silc_idlist_del_client(server->global_list, client);
}
silc_idcache_list_free(list);
}
+ /* Return now if we are shutting down */
+ if (server->server_shutdown) {
+ silc_hash_table_free(channels);
+
+ if (server_signoff) {
+ for (i = 0; i < argc; i++)
+ silc_free(argv[i]);
+ silc_free(argv);
+ silc_free(argv_lens);
+ silc_free(argv_types);
+ silc_hash_table_free(clients);
+ }
+ return TRUE;
+ }
+
/* Send the SERVER_SIGNOFF notify */
if (server_signoff) {
SilcBuffer args, not;
+ SILC_LOG_DEBUG(("Sending SERVER_SIGNOFF for %s with %d clients",
+ silc_id_render(entry->id, SILC_ID_SERVER), argc - 1));
+
/* Send SERVER_SIGNOFF notify to our primary router */
if (server->router != entry) {
args = silc_argument_payload_encode(1, argv, argv_lens,
attempt to figure out which clients really are originated from the
`from' and which are originated from a server that we have connection
to, when we've acting as backup router. If it is FALSE the `to' will
- be the new source. This function also removes the clients that are
- *really* originated from `from' if `remove_from' is TRUE. These are
- clients that the `from' owns, and not just clients that are behind
- the `from'. */
+ be the new source. */
void silc_server_update_clients_by_server(SilcServer server,
SilcServerEntry from,
SilcServerEntry to,
- bool resolve_real_server,
- bool remove_from)
+ bool resolve_real_server)
{
SilcIDCacheList list = NULL;
SilcIDCacheEntry id_cache = NULL;
SilcClientEntry client = NULL;
bool local;
- SILC_LOG_DEBUG(("Start"));
-
- SILC_LOG_DEBUG(("Updating %s", silc_id_render(from->id,
- SILC_ID_SERVER)));
- SILC_LOG_DEBUG(("to %s", silc_id_render(to->id,
- SILC_ID_SERVER)));
-
-
local = FALSE;
if (silc_idcache_get_all(server->global_list->clients, &list)) {
if (silc_idcache_list_first(list, &id_cache)) {
while (id_cache) {
client = (SilcClientEntry)id_cache->context;
- if (!(client->data.status & SILC_IDLIST_STATUS_REGISTERED)) {
+
+ /* If entry is disabled skip it. If entry is local to us, do not
+ switch it to anyone else, it is ours so skip it. */
+ if (!(client->data.status & SILC_IDLIST_STATUS_REGISTERED) ||
+ SILC_IS_LOCAL(client)) {
if (!silc_idcache_list_next(list, &id_cache))
break;
else
continue;
}
- SILC_LOG_DEBUG(("Client (global) %s",
+ SILC_LOG_DEBUG(("Client %s",
silc_id_render(client->id, SILC_ID_CLIENT)));
if (client->router)
- SILC_LOG_DEBUG(("Client->router (global) %s",
+ SILC_LOG_DEBUG(("Client->router %s",
silc_id_render(client->router->id, SILC_ID_SERVER)));
- if (client->router == from) {
- /* Skip clients that are *really* owned by the `from' */
- if (remove_from && SILC_ID_COMPARE(from->id, client->id,
- client->id->ip.data_len)) {
- SILC_LOG_DEBUG(("Found really owned client, skip it"));
- if (!silc_idcache_list_next(list, &id_cache))
- break;
- else
- continue;
- }
-
- if (resolve_real_server) {
- client->router =
- silc_server_update_clients_by_real_server(server, from, client,
- local, id_cache);
- if (!client->router)
+ if (from) {
+ if (client->router == from) {
+ if (resolve_real_server) {
+ client->router =
+ silc_server_update_clients_by_real_server(server, from, client,
+ local, id_cache);
+ if (!client->router) {
+ if (server->server_type == SILC_ROUTER)
+ client->router = from;
+ else
+ client->router = to;
+ }
+ } else {
client->router = to;
- } else {
- client->router = to;
+ }
}
+ } else {
+ /* All are changed */
+ client->router = to;
}
+ if (client->router)
+ SILC_LOG_DEBUG(("Client changed to %s",
+ silc_id_render(client->router->id, SILC_ID_CLIENT)));
+
if (!silc_idcache_list_next(list, &id_cache))
break;
}
if (silc_idcache_list_first(list, &id_cache)) {
while (id_cache) {
client = (SilcClientEntry)id_cache->context;
- if (!(client->data.status & SILC_IDLIST_STATUS_REGISTERED)) {
+
+ /* If entry is disabled skip it. If entry is local to us, do not
+ switch it to anyone else, it is ours so skip it. */
+ if (!(client->data.status & SILC_IDLIST_STATUS_REGISTERED) ||
+ SILC_IS_LOCAL(client)) {
if (!silc_idcache_list_next(list, &id_cache))
break;
else
continue;
}
- SILC_LOG_DEBUG(("Client (local) %s",
+ SILC_LOG_DEBUG(("Client %s",
silc_id_render(client->id, SILC_ID_CLIENT)));
if (client->router)
- SILC_LOG_DEBUG(("Client->router (local) %s",
+ SILC_LOG_DEBUG(("Client->router %s",
silc_id_render(client->router->id, SILC_ID_SERVER)));
- if (client->router == from) {
- /* Skip clients that are *really* owned by the `from' */
- if (remove_from && SILC_ID_COMPARE(from->id, client->id,
- client->id->ip.data_len)) {
- SILC_LOG_DEBUG(("Found really owned client, skip it"));
- if (!silc_idcache_list_next(list, &id_cache))
- break;
- else
- continue;
- }
-
- if (resolve_real_server) {
- client->router =
- silc_server_update_clients_by_real_server(server, from, client,
- local, id_cache);
- if (!client->router)
- client->router = from; /* on local list put old from */
- } else {
- client->router = to;
+ if (from) {
+ if (client->router == from) {
+ if (resolve_real_server) {
+ client->router =
+ silc_server_update_clients_by_real_server(server, from, client,
+ local, id_cache);
+ if (!client->router)
+ client->router = from;
+ } else {
+ client->router = to;
+ }
}
+ } else {
+ /* All are changed */
+ client->router = to;
}
+ if (client->router)
+ SILC_LOG_DEBUG(("Client changed to %s",
+ silc_id_render(client->router->id, SILC_ID_CLIENT)));
+
if (!silc_idcache_list_next(list, &id_cache))
break;
}
}
silc_idcache_list_free(list);
}
-
- if (remove_from)
- /* Now remove the clients that are still marked as orignated from the
- `from'. These are the clients that really was owned by the `from' and
- not just exist behind the `from'. */
- silc_server_remove_clients_by_server(server, from, TRUE);
}
/* Updates servers that are from `from' to be originated from `to'. This
SilcIDCacheEntry id_cache = NULL;
SilcServerEntry server_entry = NULL;
- SILC_LOG_DEBUG(("Start"));
+ SILC_LOG_DEBUG(("Updating servers"));
if (silc_idcache_get_all(server->local_list->servers, &list)) {
if (silc_idcache_list_first(list, &id_cache)) {
while (id_cache) {
server_entry = (SilcServerEntry)id_cache->context;
- if (server_entry->router == from) {
- server_entry->router = to;
- server_entry->connection = to->connection;
+
+ /* If entry is local to us, do not switch it to any anyone else,
+ it is ours. */
+ if (SILC_IS_LOCAL(server_entry) || server_entry == server->id_entry ||
+ server_entry == from) {
+ if (!silc_idcache_list_next(list, &id_cache))
+ break;
+ else
+ continue;
}
+
+ /* If we are standalone router, any server that is not directly
+ connected to cannot exist anymore. If we are not standalone
+ we update it correctly. */
+ if (server->server_type == SILC_ROUTER && server->standalone) {
+ silc_server_backup_del(server, server_entry);
+ silc_server_backup_replaced_del(server, server_entry);
+ silc_idlist_del_data(server_entry);
+ silc_idlist_del_server(server->local_list, server_entry);
+ server->stat.servers--;
+ server->stat.cell_servers--;
+ } else {
+ /* XXX if we are not standalone, do a check from local config
+ whether this server is in our cell, but not connected to
+ us (in which case we must remove it). */
+
+ if (server_entry->router == from) {
+ SILC_LOG_DEBUG(("Updating server (local) %s",
+ server_entry->server_name ?
+ server_entry->server_name : ""));
+ server_entry->router = to;
+ server_entry->connection = to->connection;
+ }
+ }
+
if (!silc_idcache_list_next(list, &id_cache))
break;
}
if (silc_idcache_list_first(list, &id_cache)) {
while (id_cache) {
server_entry = (SilcServerEntry)id_cache->context;
- if (server_entry->router == from) {
- server_entry->router = to;
- server_entry->connection = to->connection;
+
+ /* If entry is local to us, do not switch it to anyone else,
+ it is ours. */
+ if (SILC_IS_LOCAL(server_entry) || server_entry == server->id_entry ||
+ server_entry == from) {
+ if (!silc_idcache_list_next(list, &id_cache))
+ break;
+ else
+ continue;
}
+
+ /* If we are standalone router, any server that is not directly
+ connected to cannot exist anymore. If we are not standalone
+ we update it correctly. */
+ if (server->server_type == SILC_ROUTER && server->standalone) {
+ silc_server_backup_del(server, server_entry);
+ silc_server_backup_replaced_del(server, server_entry);
+ silc_idlist_del_data(server_entry);
+ silc_idlist_del_server(server->global_list, server_entry);
+ server->stat.servers--;
+ server->stat.cell_servers--;
+ } else {
+ /* XXX if we are not standalone, do a check from local config
+ whether this server is in our cell, but not connected to
+ us (in which case we must remove it). */
+
+ if (server_entry->router == from) {
+ SILC_LOG_DEBUG(("Updating server (global) %s",
+ server_entry->server_name ?
+ server_entry->server_name : ""));
+ server_entry->router = to;
+ server_entry->connection = to->connection;
+ }
+ }
+
+ if (!silc_idcache_list_next(list, &id_cache))
+ break;
+ }
+ }
+ silc_idcache_list_free(list);
+ }
+}
+
+
+/* Toggles the enabled/disabled status of local server connections. Packets
+ can be sent to the servers when `toggle_enabled' is TRUE and will be
+ dropped if `toggle_enabled' is FALSE, after this function is called. */
+
+void silc_server_local_servers_toggle_enabled(SilcServer server,
+ bool toggle_enabled)
+{
+ SilcIDCacheList list = NULL;
+ SilcIDCacheEntry id_cache = NULL;
+ SilcServerEntry server_entry = NULL;
+
+ if (silc_idcache_get_all(server->local_list->servers, &list)) {
+ if (silc_idcache_list_first(list, &id_cache)) {
+ while (id_cache) {
+ server_entry = (SilcServerEntry)id_cache->context;
+ if (!SILC_IS_LOCAL(server_entry) || server_entry == server->id_entry) {
+ if (!silc_idcache_list_next(list, &id_cache))
+ break;
+ else
+ continue;
+ }
+
+ if (toggle_enabled)
+ server_entry->data.status &= ~SILC_IDLIST_STATUS_DISABLED;
+ else
+ server_entry->data.status |= SILC_IDLIST_STATUS_DISABLED;
+
+ if (!silc_idcache_list_next(list, &id_cache))
+ break;
+ }
+ }
+ silc_idcache_list_free(list);
+ }
+
+ if (silc_idcache_get_all(server->global_list->servers, &list)) {
+ if (silc_idcache_list_first(list, &id_cache)) {
+ while (id_cache) {
+ server_entry = (SilcServerEntry)id_cache->context;
+ if (!SILC_IS_LOCAL(server_entry) || server_entry == server->id_entry) {
+ if (!silc_idcache_list_next(list, &id_cache))
+ break;
+ else
+ continue;
+ }
+
+ if (toggle_enabled)
+ server_entry->data.status &= ~SILC_IDLIST_STATUS_DISABLED;
+ else
+ server_entry->data.status |= SILC_IDLIST_STATUS_DISABLED;
+
+ if (!silc_idcache_list_next(list, &id_cache))
+ break;
+ }
+ }
+ silc_idcache_list_free(list);
+ }
+}
+
+/* Removes servers that are originated from the `from'. The server
+ entry is deleted in this function. If `remove_clients' is TRUE then
+ all clients originated from the server are removed too, and server
+ signoff is sent. Note that this does not remove the `from'. This
+ also does not remove locally connected servers. */
+
+void silc_server_remove_servers_by_server(SilcServer server,
+ SilcServerEntry from,
+ bool remove_clients)
+{
+ SilcIDCacheList list = NULL;
+ SilcIDCacheEntry id_cache = NULL;
+ SilcServerEntry server_entry = NULL;
+
+ SILC_LOG_DEBUG(("Removing servers by %s",
+ from->server_name ? from->server_name : "server"));
+
+ if (silc_idcache_get_all(server->local_list->servers, &list)) {
+ if (silc_idcache_list_first(list, &id_cache)) {
+ while (id_cache) {
+ server_entry = (SilcServerEntry)id_cache->context;
+ if (SILC_IS_LOCAL(server_entry) || server_entry == server->id_entry ||
+ server_entry->router != from || server_entry == from) {
+ if (!silc_idcache_list_next(list, &id_cache))
+ break;
+ else
+ continue;
+ }
+
+ /* Remove clients owned by this server */
+ if (remove_clients)
+ silc_server_remove_clients_by_server(server, from, server_entry,
+ TRUE);
+
+ /* Remove the server */
+ silc_idlist_del_server(server->local_list, server_entry);
+
+ if (!silc_idcache_list_next(list, &id_cache))
+ break;
+ }
+ }
+ silc_idcache_list_free(list);
+ }
+
+ if (silc_idcache_get_all(server->global_list->servers, &list)) {
+ if (silc_idcache_list_first(list, &id_cache)) {
+ while (id_cache) {
+ server_entry = (SilcServerEntry)id_cache->context;
+ if (SILC_IS_LOCAL(server_entry) || server_entry == server->id_entry ||
+ server_entry->router != from || server_entry == from) {
+ if (!silc_idcache_list_next(list, &id_cache))
+ break;
+ else
+ continue;
+ }
+
+ /* Remove clients owned by this server */
+ if (remove_clients)
+ silc_server_remove_clients_by_server(server, from, server_entry,
+ TRUE);
+
+ /* Remove the server */
+ silc_idlist_del_server(server->global_list, server_entry);
+
if (!silc_idcache_list_next(list, &id_cache))
break;
}
bool delchan = !(channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH);
if (delchan) {
- SILC_LOG_DEBUG(("Deleting %s channel", channel->channel_name));
-
/* Update statistics */
if (server->server_type == SILC_ROUTER)
server->stat.chanclients -= channel->user_count;
int i, count;
for (i = 0, count = 0; i < server->config->param.connections_max; i++) {
- if (server->sockets[i] && !strcmp(server->sockets[i]->ip, ip) &&
+ if (server->sockets[i] && !SILC_IS_LISTENER(server->sockets[i]) &&
+ !strcmp(server->sockets[i]->ip, ip) &&
server->sockets[i]->type == type)
count++;
}
return 0;
for (i = 0, count = 0; i < server->config->param.connections_max; i++) {
- if (server->sockets[i] &&
+ if (server->sockets[i] && !SILC_IS_LISTENER(server->sockets[i]) &&
((ip && !strcmp(server->sockets[i]->ip, ip)) ||
(hostname && !strcmp(server->sockets[i]->hostname, hostname))) &&
server->sockets[i]->port == port &&
SilcUInt32 r_software_version, l_software_version;
char *r_vendor_version = NULL, *l_vendor_version;
+ SILC_LOG_DEBUG(("Checking whether connection is allowed"));
+
/* Check version */
l_protocol_version =
}
/* Remove remote client */
+ silc_idlist_del_data(remote_client);
if (!silc_idlist_del_client(server->global_list, remote_client)) {
/* Remove this client from watcher list if it is */
silc_server_del_from_watcher_list(server, remote_client);
return TRUE;
}
+
+/* Find active socket connection by the IP address and port indicated by
+ `ip' and `port', and socket connection type of `type'. */
+
+SilcSocketConnection
+silc_server_find_socket_by_host(SilcServer server,
+ SilcSocketType type,
+ const char *ip, SilcUInt16 port)
+{
+ int i;
+
+ for (i = 0; i < server->config->param.connections_max; i++) {
+ if (!server->sockets[i])
+ continue;
+ if (!strcmp(server->sockets[i]->ip, ip) &&
+ (!port || server->sockets[i]->port == port) &&
+ server->sockets[i]->type == type)
+ return server->sockets[i];
+ }
+
+ return NULL;
+}
projects / silc.git / blobdiff