idlist.c
- Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
+ Author: Pekka Riikonen <priikone@silcnet.org>
- Copyright (C) 1997 - 2001 Pekka Riikonen
+ Copyright (C) 1997 - 2007 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
#include "serverincludes.h"
#include "idlist.h"
+#include "server_internal.h"
/******************************************************************************
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->hmac = idata->hmac;
- data->hmac_key = idata->hmac_key;
- data->hmac_key_len = idata->hmac_key_len;
- data->pkcs = idata->pkcs;
+ SilcIDListData data = entry;
+ data->conn_type = idata->conn_type;
+ data->sconn = idata->sconn;
+ 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. */
void silc_idlist_del_data(void *entry)
{
SilcIDListData idata = (SilcIDListData)entry;
- if (idata->send_key)
- silc_cipher_free(idata->send_key);
- if (idata->receive_key)
- silc_cipher_free(idata->receive_key);
- if (idata->hmac)
- silc_hmac_free(idata->hmac);
- if (idata->hmac_key) {
- memset(idata->hmac_key, 0, idata->hmac_key_len);
- silc_free(idata->hmac_key);
- }
- if (idata->pkcs)
- silc_pkcs_free(idata->pkcs);
- if (idata->public_key)
- silc_pkcs_public_key_free(idata->public_key);
+
+ if (idata->hash)
+ silc_hash_free(idata->hash);
+
+ idata->hash = NULL;
+ idata->public_key = NULL;
}
/******************************************************************************
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)
{
SilcServerEntry server;
+ char *server_namec = NULL;
SILC_LOG_DEBUG(("Adding new server entry"));
+ /* Normalize name. This is cached, original is in server context. */
+ if (server_name) {
+ server_namec = silc_identifier_check(server_name, strlen(server_name),
+ SILC_STRING_UTF8, 256, NULL);
+ if (!server_namec)
+ return NULL;
+ }
+
server = silc_calloc(1, sizeof(*server));
server->server_name = server_name;
server->server_type = server_type;
server->router = router;
server->connection = connection;
- if (!silc_idcache_add(id_list->servers, server->server_name, SILC_ID_SERVER,
- (void *)server->id, (void *)server, TRUE)) {
+ if (!silc_idcache_add(id_list->servers, server_namec,
+ (void *)server->id, (void *)server)) {
silc_free(server);
+ silc_free(server_namec);
return NULL;
}
SilcServerEntry
silc_idlist_find_server_by_id(SilcIDList id_list, SilcServerID *id,
- SilcIDCacheEntry *ret_entry)
+ SilcBool registered, SilcIDCacheEntry *ret_entry)
{
SilcIDCacheEntry id_cache = NULL;
SilcServerEntry server;
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,
- SILC_ID_SERVER, &id_cache))
+ 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;
}
-/* Replaces old Server ID with new one */
+/* Find server by name. The 'name' must be normalized already. */
+
+SilcServerEntry
+silc_idlist_find_server_by_name(SilcIDList id_list, char *name,
+ SilcBool registered,
+ SilcIDCacheEntry *ret_entry)
+{
+ SilcIDCacheEntry id_cache = NULL;
+ SilcServerEntry server;
+
+ SILC_LOG_DEBUG(("Server by name `%s'", name));
+
+ if (!silc_idcache_find_by_name_one(id_list->servers, name, &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;
+}
+
+/* Find server by connection parameters, hostname and port */
+
+SilcServerEntry
+silc_idlist_find_server_by_conn(SilcIDList id_list, char *hostname,
+ int port, SilcBool registered,
+ SilcIDCacheEntry *ret_entry)
+{
+ SilcList list;
+ SilcIDCacheEntry id_cache = NULL;
+ SilcServerEntry server = NULL;
+ SilcPacketStream sock;
+ const char *host = NULL, *ip = NULL;
+
+ SILC_LOG_DEBUG(("Server by hostname %s and port %d", hostname, port));
+
+ if (!silc_idcache_get_all(id_list->servers, &list))
+ return NULL;
+
+ silc_list_start(list);
+ while ((id_cache = silc_list_get(list))) {
+ server = id_cache->context;
+ sock = server->connection;
+
+ if (sock && silc_socket_stream_get_info(
+ silc_packet_stream_get_stream(sock),
+ NULL, &host, &ip, NULL)) {
+ if (((host && !strcasecmp(host, hostname)) ||
+ (ip && !strcasecmp(ip, hostname))) &&
+ server->id->port == SILC_SWAB_16(port))
+ break;
+ }
+
+ id_cache = NULL;
+ server = NULL;
+ }
+
+ 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;
+}
+
+/* Replaces old Server ID with new one */
SilcServerEntry
silc_idlist_replace_server_id(SilcIDList id_list, SilcServerID *old_id,
{
SilcIDCacheEntry id_cache = NULL;
SilcServerEntry server;
+ char *name;
if (!old_id || !new_id)
return NULL;
SILC_LOG_DEBUG(("Replacing Server ID"));
- if (!silc_idcache_find_by_id_one(id_list->servers, (void *)old_id,
- SILC_ID_SERVER, &id_cache))
+ if (!silc_idcache_find_by_id_one(id_list->servers, (void *)old_id, &id_cache))
return NULL;
server = (SilcServerEntry)id_cache->context;
- silc_free(server->id);
- server->id = new_id;
- id_cache->id = (void *)new_id;
+ name = strdup(id_cache->name);
+
+ /* Remove the old entry and add a new one */
+
+ silc_idcache_del_by_id(id_list->servers, (void *)server->id, NULL);
+ *server->id = *new_id;
+ silc_idcache_add(id_list->servers, name, server->id, server);
+
+ SILC_LOG_DEBUG(("Found"));
return server;
}
/* Removes and free's server entry from ID list */
-void silc_idlist_del_server(SilcIDList id_list, SilcServerEntry entry)
+int silc_idlist_del_server(SilcIDList id_list, SilcServerEntry entry)
{
if (entry) {
/* Remove from cache */
- if (entry->id)
- silc_idcache_del_by_id(id_list->servers, SILC_ID_SERVER,
- (void *)entry->id);
+ if (!silc_idcache_del_by_context(id_list->servers, entry, NULL)) {
+ 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);
+ return TRUE;
}
+
+ return FALSE;
+}
+
+/* ID Cache destructor */
+
+void silc_idlist_server_destructor(SilcIDCache cache,
+ SilcIDCacheEntry entry,
+ void *dest_context,
+ void *app_context)
+{
+ silc_free(entry->name);
}
/******************************************************************************
to be directly connected local client and `router' must be NULL. */
SilcClientEntry
-silc_idlist_add_client(SilcIDList id_list, unsigned char *nickname,
- char *username, char *userinfo, SilcClientID *id,
+silc_idlist_add_client(SilcIDList id_list, char *nickname, char *username,
+ char *userinfo, SilcClientID *id,
SilcServerEntry router, void *connection)
{
SilcClientEntry client;
+ char *nicknamec = NULL;
SILC_LOG_DEBUG(("Adding new client entry"));
+ /* Normalize name. This is cached, original is in client context. */
+ if (nickname) {
+ nicknamec = silc_identifier_check(nickname, strlen(nickname),
+ SILC_STRING_UTF8, 128, NULL);
+ if (!nicknamec)
+ return NULL;
+ }
+
+ /* Check username. */
+ if (username) {
+ char u[128 + 1], h[256 + 1];
+ int ret;
+
+ ret = silc_parse_userfqdn(username, u, sizeof(u), h, sizeof(h));
+ if (!ret)
+ return NULL;
+ if (!silc_identifier_verify(u, strlen(u), SILC_STRING_UTF8, 128))
+ return NULL;
+ if (ret > 1 && !silc_identifier_verify(h, strlen(h),
+ SILC_STRING_UTF8, 256))
+ return NULL;
+ }
+
client = silc_calloc(1, sizeof(*client));
+ if (!client)
+ return NULL;
client->nickname = nickname;
- client->username = username;
+ client->username = username ? strdup(username) : NULL;
client->userinfo = userinfo;
client->id = id;
client->router = router;
client->connection = connection;
- silc_list_init(client->channels, struct SilcChannelClientEntryStruct,
- client_list);
+ client->channels = silc_hash_table_alloc(3, silc_hash_ptr, NULL,
+ NULL, NULL, NULL, NULL, TRUE);
- if (!silc_idcache_add(id_list->clients, nickname, SILC_ID_CLIENT,
- (void *)client->id, (void *)client, TRUE)) {
+ if (!silc_idcache_add(id_list->clients, nicknamec, (void *)client->id,
+ (void *)client)) {
+ silc_hash_table_free(client->channels);
silc_free(client);
+ silc_free(nicknamec);
return NULL;
}
int silc_idlist_del_client(SilcIDList id_list, SilcClientEntry entry)
{
- if (entry) {
- /* Remove from cache */
- if (entry->id)
- if (!silc_idcache_del_by_id(id_list->clients, SILC_ID_CLIENT,
- (void *)entry->id))
- return FALSE;
-
- /* 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);
-
- memset(entry, 'F', sizeof(*entry));
- silc_free(entry);
+ SILC_LOG_DEBUG(("Delete client %p", entry));
+ if (entry) {
+ /* Delete client, destructor will free data */
+ if (!silc_idcache_del_by_context(id_list->clients, entry, NULL)) {
+ SILC_LOG_DEBUG(("Unknown client, did not delete"));
+ return FALSE;
+ }
return TRUE;
}
return FALSE;
}
-/* Returns all clients matching requested nickname. Number of clients is
- returned to `clients_count'. Caller must free the returned table. */
+/* ID Cache destructor */
-SilcClientEntry *
-silc_idlist_get_clients_by_nickname(SilcIDList id_list, char *nickname,
- char *server, unsigned int *clients_count)
+void silc_idlist_client_destructor(SilcIDCache cache,
+ SilcIDCacheEntry entry,
+ void *dest_context,
+ void *app_context)
{
- SilcIDCacheList list = NULL;
- SilcIDCacheEntry id_cache = NULL;
- SilcClientEntry *clients;
- int i;
-
- if (!silc_idcache_find_by_data(id_list->clients, nickname, &list))
- return NULL;
-
- clients = silc_calloc(silc_idcache_list_count(list), sizeof(*clients));
-
- i = 0;
- silc_idcache_list_first(list, &id_cache);
- clients[i++] = (SilcClientEntry)id_cache->context;
-
- while (silc_idcache_list_next(list, &id_cache))
- clients[i++] = (SilcClientEntry)id_cache->context;
-
- silc_idcache_list_free(list);
-
- if (clients_count)
- *clients_count = i;
+ SilcServer server = dest_context;
+ SilcClientEntry client;
- return clients;
+ client = (SilcClientEntry)entry->context;
+ if (client) {
+ /* Remove client's public key from repository, this will free it too. */
+ if (client->data.public_key)
+ silc_skr_del_public_key(server->repository, client->data.public_key,
+ client);
+
+ assert(!silc_hash_table_count(client->channels));
+ silc_free(client->nickname);
+ silc_free(client->servername);
+ 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);
+ }
}
/* Returns all clients matching requested nickname. Number of clients is
- returned to `clients_count'. Caller must free the returned table. */
-
-SilcClientEntry *
-silc_idlist_get_clients_by_hash(SilcIDList id_list, char *nickname,
- SilcHash md5hash,
- unsigned int *clients_count)
-{
- SilcIDCacheList list = NULL;
- SilcIDCacheEntry id_cache = NULL;
- SilcClientEntry *clients;
- unsigned char hash[32];
- int i;
-
- silc_hash_make(md5hash, nickname, strlen(nickname), hash);
-
- if (!silc_idcache_find_by_data(id_list->clients, hash, &list))
- return NULL;
-
- clients = silc_calloc(silc_idcache_list_count(list), sizeof(*clients));
-
- i = 0;
- silc_idcache_list_first(list, &id_cache);
- clients[i++] = (SilcClientEntry)id_cache->context;
+ returned to `clients_count'. Caller must free the returned table.
+ The 'nickname' must be normalized already. */
- while (silc_idcache_list_next(list, &id_cache))
- clients[i++] = (SilcClientEntry)id_cache->context;
-
- silc_idcache_list_free(list);
-
- if (clients_count)
- *clients_count = i;
-
- return clients;
-}
-
-/* Finds client entry by nickname. */
-
-SilcClientEntry
-silc_idlist_find_client_by_nickname(SilcIDList id_list, char *nickname,
- char *server, SilcIDCacheEntry *ret_entry)
+int silc_idlist_get_clients_by_nickname(SilcIDList id_list, char *nickname,
+ char *server,
+ SilcClientEntry **clients,
+ SilcUInt32 *clients_count)
{
- SilcIDCacheList list = NULL;
+ SilcList list;
SilcIDCacheEntry id_cache = NULL;
- SilcClientEntry client = NULL;
-
- SILC_LOG_DEBUG(("Client by nickname"));
- if (server) {
- if (!silc_idcache_find_by_data(id_list->clients, nickname, &list))
- return NULL;
+ SILC_LOG_DEBUG(("Start"));
-#if 0
- while (silc_idcache_list_next(list, &id_cache)) {
- client = (SilcClientEntry)id_cache->context;
+ if (!silc_idcache_find_by_name(id_list->clients, nickname, &list))
+ return FALSE;
- if (!strcmp(server, XXX, strlen(server)))
- break;
+ *clients = silc_realloc(*clients,
+ (silc_list_count(list) + *clients_count) *
+ sizeof(**clients));
- client = NULL;
- }
-#endif
+ silc_list_start(list);
+ while ((id_cache = silc_list_get(list)))
+ (*clients)[(*clients_count)++] = id_cache->context;
- silc_idcache_list_free(list);
-
- if (!client)
- return NULL;
- } else {
- if (!silc_idcache_find_by_data_one(id_list->clients, nickname, &id_cache))
- return NULL;
+ SILC_LOG_DEBUG(("Found total %d clients", *clients_count));
- client = (SilcClientEntry)id_cache->context;
-
- if (ret_entry)
- *ret_entry = id_cache;
- }
-
- SILC_LOG_DEBUG(("Found"));
-
- return client;
+ return TRUE;
}
-/* Finds client by nickname hash. */
+/* Returns all clients matching requested nickname hash. Number of clients
+ is returned to `clients_count'. Caller must free the returned table.
+ The 'nickname' must be normalized already. */
-SilcClientEntry
-silc_idlist_find_client_by_hash(SilcIDList id_list, char *nickname,
- SilcHash md5hash, SilcIDCacheEntry *ret_entry)
+int silc_idlist_get_clients_by_hash(SilcIDList id_list,
+ char *nickname, char *server,
+ SilcHash md5hash,
+ SilcClientEntry **clients,
+ SilcUInt32 *clients_count)
{
- SilcIDCacheList list = NULL;
+ SilcList list;
SilcIDCacheEntry id_cache = NULL;
- SilcClientEntry client = NULL;
- unsigned char hash[32];
+ unsigned char hash[SILC_HASH_MAXLEN];
+ SilcClientID client_id;
+ SilcClientEntry client_entry;
- SILC_LOG_DEBUG(("Client by hash"));
+ SILC_LOG_DEBUG(("Start"));
silc_hash_make(md5hash, nickname, strlen(nickname), hash);
- if (!silc_idcache_find_by_id(id_list->clients, SILC_ID_CACHE_ANY,
- SILC_ID_CLIENT, &list))
- return NULL;
+ /* 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
+ other parts of the ID and get all the clients with that hash, ie.
+ with that nickname, as the hash is from the nickname. */
+ memset(&client_id, 0, sizeof(client_id));
+ memcpy(&client_id.hash, hash, sizeof(client_id.hash));
+ if (!silc_idcache_find_by_id(id_list->clients, &client_id, &list))
+ return FALSE;
- if (!silc_idcache_list_first(list, &id_cache)) {
- silc_idcache_list_free(list);
- return NULL;
+ /* If server is specified, narrow the search with it. */
+ if (server) {
+ silc_list_start(list);
+ while ((id_cache = silc_list_get(list))) {
+ client_entry = id_cache->context;
+ if (!client_entry->servername)
+ continue;
+ if (!silc_utf8_strcasecmp(client_entry->servername, server))
+ silc_list_del(list, id_cache);
+ }
}
- while (id_cache) {
- client = (SilcClientEntry)id_cache->context;
-
- if (client && !SILC_ID_COMPARE_HASH(client->id, hash))
- break;
+ if (!silc_list_count(list))
+ return FALSE;
- id_cache = NULL;
- client = NULL;
+ *clients = silc_realloc(*clients,
+ (silc_list_count(list) + *clients_count) *
+ sizeof(**clients));
- if (!silc_idcache_list_next(list, &id_cache))
- break;
- }
-
- silc_idcache_list_free(list);
+ silc_list_start(list);
+ while ((id_cache = silc_list_get(list)))
+ (*clients)[(*clients_count)++] = id_cache->context;
- if (ret_entry)
- *ret_entry = id_cache;
-
- SILC_LOG_DEBUG(("Found"));
+ SILC_LOG_DEBUG(("Found total %d clients", *clients_count));
- return client;
+ return TRUE;
}
/* Finds client by Client ID */
SilcClientEntry
silc_idlist_find_client_by_id(SilcIDList id_list, SilcClientID *id,
- SilcIDCacheEntry *ret_entry)
+ SilcBool registered, SilcIDCacheEntry *ret_entry)
{
SilcIDCacheEntry id_cache = NULL;
SilcClientEntry client;
if (!id)
return NULL;
- SILC_LOG_DEBUG(("Client ID (%s)",
+ SILC_LOG_DEBUG(("Client ID (%s)",
silc_id_render(id, SILC_ID_CLIENT)));
- if (!silc_idcache_find_by_id_one(id_list->clients, (void *)id,
- SILC_ID_CLIENT, &id_cache))
+ /* Find the exact client with the exact Client ID */
+ if (!silc_idcache_find_by_id_one(id_list->clients, (void *)id, &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;
/* 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;
+ char *nicknamec = NULL;
if (!old_id || !new_id)
return NULL;
SILC_LOG_DEBUG(("Replacing Client ID"));
- if (!silc_idcache_find_by_id_one(id_list->clients, (void *)old_id,
- SILC_ID_CLIENT, &id_cache))
+ /* Normalize name. This is cached, original is in client context. */
+ if (nickname) {
+ nicknamec = silc_identifier_check(nickname, strlen(nickname),
+ SILC_STRING_UTF8, 128, NULL);
+ if (!nicknamec)
+ return NULL;
+ }
+
+ /* Find exact client with exact Client ID */
+ if (!silc_idcache_find_by_id_one(id_list->clients, old_id, &id_cache))
return NULL;
client = (SilcClientEntry)id_cache->context;
- silc_free(client->id);
- client->id = new_id;
- id_cache->id = (void *)new_id;
-
- /* If the old ID Cache data was the hash value of the old Client ID
- replace it with the hash of new Client ID */
- if (id_cache->data && !SILC_ID_COMPARE_HASH(old_id, id_cache->data)) {
- silc_free(id_cache->data);
- id_cache->data = silc_calloc(sizeof(new_id->hash), sizeof(unsigned char));
- memcpy(id_cache->data, new_id->hash, sizeof(new_id->hash));
- silc_idcache_sort_by_data(id_list->clients);
- }
+
+ /* 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);
+
+ /* Replace */
+ if (!silc_idcache_update(id_list->clients, id_cache, new_id, nicknamec,
+ TRUE))
+ return NULL;
+
+ silc_free(client->nickname);
+ client->nickname = nickname ? strdup(nickname) : NULL;
+
+ /* 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);
SILC_LOG_DEBUG(("Replaced"));
SilcChannelEntry
silc_idlist_add_channel(SilcIDList id_list, char *channel_name, int mode,
SilcChannelID *id, SilcServerEntry router,
- SilcCipher channel_key)
+ SilcCipher send_key, SilcCipher receive_key,
+ SilcHmac hmac)
{
SilcChannelEntry channel;
+ char *channel_namec = NULL;
+
+ SILC_LOG_DEBUG(("Adding new channel %s", channel_name));
+
+ /* Normalize name. This is cached, original is in client context. */
+ if (channel_name) {
+ channel_namec = silc_channel_name_check(channel_name, strlen(channel_name),
+ SILC_STRING_UTF8, 256, NULL);
+ if (!channel_namec)
+ return NULL;
+ }
channel = silc_calloc(1, sizeof(*channel));
channel->channel_name = channel_name;
channel->mode = mode;
channel->id = id;
channel->router = router;
- channel->channel_key = channel_key;
- silc_list_init(channel->user_list, struct SilcChannelClientEntryStruct,
- channel_list);
+ channel->send_key = send_key;
+ channel->receive_key = receive_key;
+ channel->hmac = hmac;
+ channel->created = channel->updated = time(0);
+ if (!channel->hmac)
+ if (!silc_hmac_alloc(SILC_DEFAULT_HMAC, NULL, &channel->hmac)) {
+ silc_free(channel);
+ return NULL;
+ }
- if (!silc_idcache_add(id_list->channels, channel->channel_name,
- SILC_ID_CHANNEL, (void *)channel->id,
- (void *)channel, TRUE)) {
+ 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_namec,
+ (void *)channel->id, (void *)channel)) {
+ silc_hmac_free(channel->hmac);
+ silc_hash_table_free(channel->user_list);
silc_free(channel);
+ silc_free(channel_namec);
return NULL;
}
return channel;
}
+/* ID Cache destructor */
+
+void silc_idlist_channel_destructor(SilcIDCache cache,
+ SilcIDCacheEntry entry,
+ void *dest_context,
+ void *app_context)
+{
+ silc_free(entry->name);
+}
+
+/* Foreach callbcak to free all users from the channel when deleting a
+ channel entry. */
+
+static void silc_idlist_del_channel_foreach(void *key, void *context,
+ void *user_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(chl->client->channels, chl->channel);
+ silc_free(chl);
+}
+
/* Free channel entry. This free's everything. */
int silc_idlist_del_channel(SilcIDList id_list, SilcChannelEntry entry)
{
if (entry) {
- SilcChannelClientEntry chl;
-
/* Remove from cache */
- if (entry->id)
- if (!silc_idcache_del_by_id(id_list->channels, SILC_ID_CHANNEL,
- (void *)entry->id))
- return FALSE;
+ if (!silc_idcache_del_by_context(id_list->channels, entry, NULL)) {
+ 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);
- if (entry->channel_key)
- silc_cipher_free(entry->channel_key);
+ 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->send_key)
+ silc_cipher_free(entry->send_key);
+ if (entry->receive_key)
+ silc_cipher_free(entry->receive_key);
if (entry->key) {
memset(entry->key, 0, entry->key_len / 8);
silc_free(entry->key);
}
-
- silc_list_start(entry->user_list);
- while ((chl = silc_list_get(entry->user_list)) != SILC_LIST_END) {
- silc_list_del(entry->user_list, chl);
- silc_free(chl);
- }
+ 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);
}
/* Finds channel by channel name. Channel names are unique and they
- are not case-sensitive. */
+ are not case-sensitive. The 'name' must be normalized already. */
SilcChannelEntry
silc_idlist_find_channel_by_name(SilcIDList id_list, char *name,
SilcIDCacheEntry *ret_entry)
{
- SilcIDCacheList list = NULL;
SilcIDCacheEntry id_cache = NULL;
- SilcChannelEntry channel;
- SILC_LOG_DEBUG(("Channel by name"));
+ SILC_LOG_DEBUG(("Channel by name %s", name));
- if (!silc_idcache_find_by_data_loose(id_list->channels, name, &list))
- return NULL;
-
- if (!silc_idcache_list_first(list, &id_cache)) {
- silc_idcache_list_free(list);
+ if (!silc_idcache_find_by_name_one(id_list->channels, name, &id_cache))
return NULL;
- }
-
- channel = (SilcChannelEntry)id_cache->context;
if (ret_entry)
*ret_entry = id_cache;
- silc_idcache_list_free(list);
-
SILC_LOG_DEBUG(("Found"));
- return channel;
+ /* Touch channel */
+ ((SilcChannelEntry)id_cache->context)->updated = time(NULL);
+
+ return id_cache->context;
}
/* Finds channel by Channel ID. */
SILC_LOG_DEBUG(("Channel ID (%s)",
silc_id_render(id, SILC_ID_CHANNEL)));
- if (!silc_idcache_find_by_id_one(id_list->channels, (void *)id,
- SILC_ID_CHANNEL, &id_cache))
+ if (!silc_idcache_find_by_id_one(id_list->channels, (void *)id, &id_cache))
return NULL;
channel = (SilcChannelEntry)id_cache->context;
SILC_LOG_DEBUG(("Found"));
+ /* Touch channel */
+ channel->updated = time(NULL);
+
return channel;
}
{
SilcIDCacheEntry id_cache = NULL;
SilcChannelEntry channel;
+ char *name;
if (!old_id || !new_id)
return NULL;
SILC_LOG_DEBUG(("Replacing Channel ID"));
- if (!silc_idcache_find_by_id_one(id_list->channels, (void *)old_id,
- SILC_ID_CHANNEL, &id_cache))
+ if (!silc_idcache_find_by_id_one(id_list->channels, (void *)old_id,
+ &id_cache))
return NULL;
channel = (SilcChannelEntry)id_cache->context;
- silc_free(channel->id);
- channel->id = new_id;
- id_cache->id = (void *)new_id;
+ name = strdup(id_cache->name);
+
+ /* Remove the old entry and add a new one */
+
+ silc_idcache_del_by_id(id_list->channels, (void *)channel->id, NULL);
+ *channel->id = *new_id;
+ silc_idcache_add(id_list->channels, name, channel->id, channel);
+
+ SILC_LOG_DEBUG(("Replaced"));
+
+ /* Touch channel */
+ channel->updated = time(NULL);
return channel;
}
+
+/* Returns channels from the ID list. If the `channel_id' is NULL then
+ all channels are returned. */
+
+SilcChannelEntry *
+silc_idlist_get_channels(SilcIDList id_list, SilcChannelID *channel_id,
+ SilcUInt32 *channels_count)
+{
+ SilcList list;
+ SilcIDCacheEntry id_cache = NULL;
+ SilcChannelEntry *channels = NULL;
+ int i = 0;
+
+ SILC_LOG_DEBUG(("Start"));
+
+ if (!channel_id) {
+ if (!silc_idcache_get_all(id_list->channels, &list))
+ return NULL;
+
+ channels = silc_calloc(silc_list_count(list), sizeof(*channels));
+
+ i = 0;
+ silc_list_start(list);
+ while ((id_cache = silc_list_get(list)))
+ channels[i++] = (SilcChannelEntry)id_cache->context;
+ } else {
+ if (!silc_idcache_find_by_id_one(id_list->channels, channel_id, &id_cache))
+ return NULL;
+
+ i = 1;
+ channels = silc_calloc(1, sizeof(*channels));
+ channels[0] = (SilcChannelEntry)id_cache->context;
+ }
+
+ if (channels_count)
+ *channels_count = i;
+
+ return channels;
+}
projects / silc.git / blobdiff