Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
- Copyright (C) 1997 - 2000 Pekka Riikonen
+ Copyright (C) 1997 - 2001 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
#include "serverincludes.h"
#include "idlist.h"
+/******************************************************************************
+
+ Common functions
+
+******************************************************************************/
+
+/* This function is used to add keys and stuff to common ID entry data
+ structure. */
+
+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->public_key = idata->public_key;
+ data->last_receive = idata->last_receive;
+ data->last_sent = idata->last_sent;
+ 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->rekey) {
+ if (idata->rekey->send_enc_key) {
+ memset(idata->rekey->send_enc_key, 0, idata->rekey->enc_key_len);
+ silc_free(idata->rekey->send_enc_key);
+ }
+ silc_free(idata->rekey);
+ }
+ if (idata->hmac_send) /* Same as idata->hmac_receive */
+ silc_hmac_free(idata->hmac_send);
+ if (idata->public_key)
+ silc_pkcs_public_key_free(idata->public_key);
+}
+
+/* Purges ID cache */
+
+SILC_TASK_CALLBACK_GLOBAL(silc_idlist_purge)
+{
+ SilcIDListPurge i = (SilcIDListPurge)context;
+
+ SILC_LOG_DEBUG(("Start"));
+
+ silc_idcache_purge(i->cache);
+ silc_schedule_task_add(i->schedule, 0,
+ silc_idlist_purge,
+ (void *)i, 600, 0,
+ SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
+}
+
/******************************************************************************
Server entry functions
silc_idlist_add_server(SilcIDList id_list,
char *server_name, int server_type,
SilcServerID *id, SilcServerEntry router,
- SilcCipher send_key, SilcCipher receive_key,
- SilcPKCS pkcs, SilcHmac hmac,
- SilcPublicKey public_key, void *connection)
+ void *connection)
{
SilcServerEntry server;
server->server_type = server_type;
server->id = id;
server->router = router;
- server->send_key = send_key;
- server->receive_key = receive_key;
- server->pkcs = pkcs;
- server->hmac = hmac;
- server->public_key = public_key;
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->server_name,
+ (void *)server->id, (void *)server, FALSE)) {
silc_free(server);
return NULL;
}
/* Finds server by Server ID */
SilcServerEntry
-silc_idlist_find_server_by_id(SilcIDList id_list, SilcServerID *id)
+silc_idlist_find_server_by_id(SilcIDList id_list, SilcServerID *id,
+ bool registered, SilcIDCacheEntry *ret_entry)
{
SilcIDCacheEntry id_cache = NULL;
SilcServerEntry server;
if (!id)
return NULL;
- SILC_LOG_DEBUG(("Finding server by 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,
- SILC_ID_SERVER, &id_cache))
+ &id_cache))
return NULL;
server = (SilcServerEntry)id_cache->context;
+ if (ret_entry)
+ *ret_entry = id_cache;
+
+ if (server && registered &&
+ !(server->data.status & SILC_IDLIST_STATUS_REGISTERED))
+ return NULL;
+
+ SILC_LOG_DEBUG(("Found"));
+
+ return server;
+}
+
+/* Find server by name */
+
+SilcServerEntry
+silc_idlist_find_server_by_name(SilcIDList id_list, char *name,
+ bool 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 (ret_entry)
+ *ret_entry = id_cache;
+
+ if (server && registered &&
+ !(server->data.status & SILC_IDLIST_STATUS_REGISTERED))
+ return NULL;
+
+ 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, 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))
+ return NULL;
+
+ if (!silc_idcache_list_first(list, &id_cache)) {
+ silc_idcache_list_free(list);
+ return NULL;
+ }
+
+ 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)
+ break;
+
+ id_cache = NULL;
+ server = NULL;
+
+ if (!silc_idcache_list_next(list, &id_cache))
+ break;
+ }
+
+ silc_idcache_list_free(list);
+
+ if (ret_entry)
+ *ret_entry = id_cache;
+
+ if (server && registered &&
+ !(server->data.status & SILC_IDLIST_STATUS_REGISTERED))
+ return NULL;
+
+ SILC_LOG_DEBUG(("Found"));
+
return server;
}
SILC_LOG_DEBUG(("Replacing Server ID"));
if (!silc_idcache_find_by_id_one(id_list->servers, (void *)old_id,
- SILC_ID_SERVER, &id_cache))
+ &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;
- id_cache->id = (void *)new_id;
+
+ silc_idcache_add(id_list->servers, server->server_name, server->id,
+ server, FALSE);
+
+ SILC_LOG_DEBUG(("Found"));
return server;
}
+/* Removes and free's server entry from ID list */
+
+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;
+
+ /* Free data */
+ silc_free(entry->server_name);
+ silc_free(entry->id);
+
+ memset(entry, 'F', sizeof(*entry));
+ silc_free(entry);
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
/******************************************************************************
Client entry functions
/* Add new client entry. This adds the client entry to ID cache system
and returns the allocated client entry or NULL on error. This is
- called when new client connection is accepted to the server. */
+ called when new client connection is accepted to the server. If The
+ `router' is provided then the all server routines assume that the client
+ is not directly connected local client but it has router set and is
+ remote. If this is the case then `connection' must be NULL. If, on the
+ other hand, the `connection' is provided then the client is assumed
+ to be directly connected local client and `router' must be NULL. */
SilcClientEntry
-silc_idlist_add_client(SilcIDList id_list, char *nickname, char *username,
+silc_idlist_add_client(SilcIDList id_list, char *nickname, char *username,
char *userinfo, SilcClientID *id,
- SilcServerEntry router,
- SilcCipher send_key, SilcCipher receive_key,
- SilcPKCS pkcs, SilcHmac hmac,
- SilcPublicKey public_key, void *connection)
+ SilcServerEntry router, void *connection)
{
SilcClientEntry client;
client->userinfo = userinfo;
client->id = id;
client->router = router;
- client->send_key = send_key;
- client->receive_key = receive_key;
- client->pkcs = pkcs;
- client->hmac = hmac;
- client->public_key = public_key;
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, client->nickname, SILC_ID_CLIENT,
- (void *)client->id, (void *)client, TRUE)) {
+ if (!silc_idcache_add(id_list->clients, nickname, (void *)client->id,
+ (void *)client, FALSE)) {
+ silc_hash_table_free(client->channels);
silc_free(client);
return NULL;
}
}
/* Free client entry. This free's everything and removes the entry
- from ID cache. */
+ from ID cache. Call silc_idlist_del_data before calling this one. */
-void silc_idlist_del_client(SilcIDList id_list, SilcClientEntry entry)
+int silc_idlist_del_client(SilcIDList id_list, SilcClientEntry entry)
{
+ SILC_LOG_DEBUG(("Start"));
+
if (entry) {
/* Remove from cache */
if (entry->id)
- silc_idcache_del_by_id(id_list->clients, SILC_ID_CLIENT,
- (void *)entry->id);
+ if (!silc_idcache_del_by_context(id_list->clients, entry))
+ 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);
- if (entry->send_key)
- silc_cipher_free(entry->send_key);
- if (entry->receive_key)
- silc_cipher_free(entry->receive_key);
- if (entry->pkcs)
- silc_pkcs_free(entry->pkcs);
- if (entry->public_key)
- silc_pkcs_public_key_free(entry->public_key);
- if (entry->hmac)
- silc_hmac_free(entry->hmac);
+ silc_free(entry->nickname);
+ silc_free(entry->username);
+ silc_free(entry->userinfo);
+ silc_free(entry->id);
+
+ memset(entry, 'F', sizeof(*entry));
+ silc_free(entry);
+
+ return TRUE;
}
+
+ return FALSE;
}
/* 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_nickname(SilcIDList id_list, char *nickname,
- char *server, unsigned int *clients_count)
+int silc_idlist_get_clients_by_nickname(SilcIDList id_list, char *nickname,
+ char *server,
+ SilcClientEntry **clients,
+ uint32 *clients_count)
{
SilcIDCacheList list = NULL;
SilcIDCacheEntry id_cache = NULL;
- SilcClientEntry *clients;
- int i;
- if (!silc_idcache_find_by_data(id_list->clients, nickname, &list))
- return NULL;
+ SILC_LOG_DEBUG(("Start"));
- clients = silc_calloc(silc_idcache_list_count(list), sizeof(*clients));
+ if (!silc_idcache_find_by_name(id_list->clients, nickname, &list))
+ return FALSE;
+
+ *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);
- 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)
-{
- SilcIDCacheList list = NULL;
- SilcIDCacheEntry id_cache = NULL;
- SilcClientEntry client = NULL;
-
- SILC_LOG_DEBUG(("Finding client by nickname"));
-
- if (server) {
- if (!silc_idcache_find_by_data(id_list->clients, nickname, &list))
- return NULL;
-
-#if 0
- while (silc_idcache_list_next(list, &id_cache)) {
- client = (SilcClientEntry)id_cache->context;
-
- if (!strcmp(server, XXX, strlen(server)))
- break;
+ SILC_LOG_DEBUG(("Found total %d clients", *clients_count));
- client = NULL;
- }
-#endif
-
- 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;
-
- client = (SilcClientEntry)id_cache->context;
- }
-
- 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. */
-SilcClientEntry
-silc_idlist_find_client_by_hash(SilcIDList id_list, char *nickname,
- SilcHash md5hash)
+int silc_idlist_get_clients_by_hash(SilcIDList id_list, char *nickname,
+ SilcHash md5hash,
+ SilcClientEntry **clients,
+ uint32 *clients_count)
{
SilcIDCacheList list = NULL;
SilcIDCacheEntry id_cache = NULL;
- SilcClientEntry client = NULL;
unsigned char hash[32];
+ SilcClientID client_id;
- SILC_LOG_DEBUG(("Finding 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;
- }
+ *clients = silc_realloc(*clients,
+ (silc_idcache_list_count(list) + *clients_count) *
+ sizeof(**clients));
- while (id_cache) {
- client = (SilcClientEntry)id_cache->context;
-
- if (client && !SILC_ID_COMPARE_HASH(client->id, hash))
- break;
-
- id_cache = NULL;
- client = NULL;
+ silc_idcache_list_first(list, &id_cache);
+ (*clients)[(*clients_count)++] = (SilcClientEntry)id_cache->context;
- if (!silc_idcache_list_next(list, &id_cache))
- break;
- }
+ while (silc_idcache_list_next(list, &id_cache))
+ (*clients)[(*clients_count)++] = (SilcClientEntry)id_cache->context;
silc_idcache_list_free(list);
+
+ 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)
+silc_idlist_find_client_by_id(SilcIDList id_list, SilcClientID *id,
+ bool registered, SilcIDCacheEntry *ret_entry)
{
SilcIDCacheEntry id_cache = NULL;
SilcClientEntry client;
if (!id)
return NULL;
- SILC_LOG_DEBUG(("Finding client by ID"));
-
- if (!silc_idcache_find_by_id_one(id_list->clients, (void *)id,
- SILC_ID_CLIENT, &id_cache))
+ 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,
+ silc_hash_client_id_compare, NULL,
+ &id_cache))
return NULL;
client = (SilcClientEntry)id_cache->context;
+ if (ret_entry)
+ *ret_entry = id_cache;
+
+ if (client && registered &&
+ !(client->data.status & SILC_IDLIST_STATUS_REGISTERED))
+ return NULL;
+
+ SILC_LOG_DEBUG(("Found"));
+
return client;
}
SILC_LOG_DEBUG(("Replacing Client ID"));
- if (!silc_idcache_find_by_id_one(id_list->clients, (void *)old_id,
- SILC_ID_CLIENT, &id_cache))
+ /* 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 *)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 */
+
+ silc_idcache_del_by_context(id_list->clients, client);
+
silc_free(client->id);
client->id = new_id;
- id_cache->id = (void *)new_id;
+
+ silc_idcache_add(id_list->clients, NULL, client->id, client, FALSE);
+
+ SILC_LOG_DEBUG(("Replaced"));
return client;
}
+/* Client cache entry destructor that is called when the cache is purged. */
+
+void silc_idlist_client_destructor(SilcIDCache cache,
+ SilcIDCacheEntry entry)
+{
+ 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));
+ silc_free(client);
+ }
+}
/******************************************************************************
SilcChannelEntry
silc_idlist_add_channel(SilcIDList id_list, char *channel_name, int mode,
SilcChannelID *id, SilcServerEntry router,
- SilcCipher channel_key)
+ SilcCipher channel_key, SilcHmac hmac)
{
SilcChannelEntry channel;
+ SILC_LOG_DEBUG(("Adding new channel entry"));
+
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->hmac = hmac;
+ channel->created = time(0);
+ if (!channel->hmac)
+ if (!silc_hmac_alloc(SILC_DEFAULT_HMAC, NULL, &channel->hmac)) {
+ silc_free(channel);
+ return NULL;
+ }
+
+ 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,
- SILC_ID_CHANNEL, (void *)channel->id,
- (void *)channel, TRUE)) {
+ (void *)channel->id, (void *)channel, FALSE)) {
+ silc_hmac_free(channel->hmac);
+ silc_hash_table_free(channel->user_list);
silc_free(channel);
return NULL;
}
return channel;
}
+/* 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;
+
+ /* 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. */
-void silc_idlist_del_channel(SilcIDList id_list, SilcChannelEntry entry)
+int silc_idlist_del_channel(SilcIDList id_list, SilcChannelEntry entry)
{
- if (entry) {
- SilcChannelClientEntry chl;
+ SILC_LOG_DEBUG(("Start"));
+ if (entry) {
/* Remove from cache */
if (entry->id)
- silc_idcache_del_by_id(id_list->channels, SILC_ID_CHANNEL,
- (void *)entry->id);
+ if (!silc_idcache_del_by_id(id_list->channels, (void *)entry->id))
+ return FALSE;
/* 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->channel_key)
silc_cipher_free(entry->channel_key);
if (entry->key) {
memset(entry->key, 0, entry->key_len / 8);
silc_free(entry->key);
}
- memset(entry->iv, 0, sizeof(entry->iv));
-
- 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);
+ silc_free(entry->hmac_name);
+ 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);
+
+ memset(entry, 'F', sizeof(*entry));
+ silc_free(entry);
+ return TRUE;
}
+
+ return FALSE;
}
/* Finds channel by channel name. Channel names are unique and they
are not case-sensitive. */
SilcChannelEntry
-silc_idlist_find_channel_by_name(SilcIDList id_list, char *name)
+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(("Finding channel by name"));
+ SILC_LOG_DEBUG(("Channel by name"));
- if (!silc_idcache_find_by_data_loose(id_list->channels, name, &list))
+ if (!silc_idcache_find_by_name_one(id_list->channels, name, &id_cache))
return NULL;
-
- if (!silc_idcache_list_first(list, &id_cache)) {
- silc_idcache_list_free(list);
+
+ if (ret_entry)
+ *ret_entry = id_cache;
+
+ SILC_LOG_DEBUG(("Found"));
+
+ return id_cache->context;
+}
+
+/* Finds channel by Channel ID. */
+
+SilcChannelEntry
+silc_idlist_find_channel_by_id(SilcIDList id_list, SilcChannelID *id,
+ SilcIDCacheEntry *ret_entry)
+{
+ SilcIDCacheEntry id_cache = NULL;
+ SilcChannelEntry channel;
+
+ if (!id)
+ return NULL;
+
+ 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, &id_cache))
return NULL;
- }
channel = (SilcChannelEntry)id_cache->context;
- silc_idcache_list_free(list);
+ if (ret_entry)
+ *ret_entry = id_cache;
+
+ SILC_LOG_DEBUG(("Found"));
return channel;
}
-/* Finds channel by Channel ID. */
+/* Replaces old Channel ID with new one. This is done when router forces
+ normal server to change Channel ID. */
SilcChannelEntry
-silc_idlist_find_channel_by_id(SilcIDList id_list, SilcChannelID *id)
+silc_idlist_replace_channel_id(SilcIDList id_list, SilcChannelID *old_id,
+ SilcChannelID *new_id)
{
SilcIDCacheEntry id_cache = NULL;
SilcChannelEntry channel;
- if (!id)
+ if (!old_id || !new_id)
return NULL;
- SILC_LOG_DEBUG(("Finding channel by ID"));
+ SILC_LOG_DEBUG(("Replacing Channel ID"));
- 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 *)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;
+
+ silc_idcache_add(id_list->channels, channel->channel_name, channel->id,
+ channel, FALSE);
+
+ SILC_LOG_DEBUG(("Replaced"));
+
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,
+ uint32 *channels_count)
+{
+ SilcIDCacheList list = NULL;
+ 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_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))
+ 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