/*
- client.c
+ client.c
Author: Pekka Riikonen <priikone@silcnet.org>
- Copyright (C) 1997 - 2001 Pekka Riikonen
+ Copyright (C) 1997 - 2002 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.
-
+ the Free Software Foundation; version 2 of the License.
+
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
*/
/* $Id$ */
-#include "clientlibincludes.h"
+#include "silcincludes.h"
+#include "silcclient.h"
#include "client_internal.h"
/* Static task callback prototypes */
void silc_client_resolve_auth_method(bool success,
SilcProtocolAuthMeth auth_meth,
const unsigned char *auth_data,
- uint32 auth_data_len, void *context);
+ SilcUInt32 auth_data_len, void *context);
/* Allocates new client object. This has to be done before client may
work. After calling this one must call silc_client_init to initialize
return sock;
}
-/* Start SILC Key Exchange (SKE) protocol to negotiate shared secret
- key material between client and server. This function can be called
- directly if application is performing its own connecting and does not
- use the connecting provided by this library. This function is normally
- used only if the application performed the connecting outside the library.
- The library however may use this internally. */
+/* Socket hostname and IP lookup callback that is called before actually
+ starting the key exchange. The lookup is called from the function
+ silc_client_start_key_exchange. */
-bool silc_client_start_key_exchange(SilcClient client,
- SilcClientConnection conn,
- int fd)
+static void silc_client_start_key_exchange_cb(SilcSocketConnection sock,
+ void *context)
{
+ SilcClientConnection conn = (SilcClientConnection)context;
+ SilcClient client = conn->client;
SilcProtocol protocol;
SilcClientKEInternalContext *proto_ctx;
- void *context;
- /* Allocate new socket connection object */
- silc_socket_alloc(fd, SILC_SOCKET_TYPE_SERVER, (void *)conn, &conn->sock);
-
- /* Sometimes when doing quick reconnects the new socket may be same as
- the old one and there might be pending stuff for the old socket.
- If new one is same then those pending sutff might cause problems.
- Make sure they do not do that. */
- silc_schedule_task_del_by_fd(client->schedule, fd);
+ SILC_LOG_DEBUG(("Start"));
- conn->nickname = strdup(client->username);
+ /* XXX We should most likely use the resolved host name instead of the
+ one user provided for us. */
+ silc_free(conn->sock->hostname);
conn->sock->hostname = strdup(conn->remote_host);
- conn->sock->ip = strdup(conn->remote_host);
+ if (!conn->sock->ip)
+ conn->sock->ip = strdup(conn->remote_host);
conn->sock->port = conn->remote_port;
/* Allocate internal Key Exchange context. This is sent to the
if (!protocol) {
client->internal->ops->say(client, conn, SILC_CLIENT_MESSAGE_ERROR,
"Error: Could not start key exchange protocol");
- return FALSE;
+ silc_net_close_connection(conn->sock->sock);
+ client->internal->ops->connect(client, conn, FALSE);
+ return;
}
conn->sock->protocol = protocol;
be set separately by calling SILC_CLIENT_SET_CONNECTION_FOR_OUTPUT,
later when outgoing data is available. */
context = (void *)client;
- SILC_CLIENT_REGISTER_CONNECTION_FOR_IO(fd);
+ SILC_CLIENT_REGISTER_CONNECTION_FOR_IO(conn->sock->sock);
/* Execute the protocol */
silc_protocol_execute(protocol, client->schedule, 0, 0);
- return TRUE;
+}
+
+/* Start SILC Key Exchange (SKE) protocol to negotiate shared secret
+ key material between client and server. This function can be called
+ directly if application is performing its own connecting and does not
+ use the connecting provided by this library. This function is normally
+ used only if the application performed the connecting outside the library.
+ The library however may use this internally. */
+
+void silc_client_start_key_exchange(SilcClient client,
+ SilcClientConnection conn,
+ int fd)
+{
+ /* Allocate new socket connection object */
+ silc_socket_alloc(fd, SILC_SOCKET_TYPE_SERVER, (void *)conn, &conn->sock);
+
+ /* Sometimes when doing quick reconnects the new socket may be same as
+ the old one and there might be pending stuff for the old socket.
+ If new one is same then those pending sutff might cause problems.
+ Make sure they do not do that. */
+ silc_schedule_task_del_by_fd(client->schedule, fd);
+
+ conn->nickname = (client->nickname ? strdup(client->nickname) :
+ strdup(client->username));
+
+ /* Resolve the remote hostname and IP address for our socket connection */
+ silc_socket_host_lookup(conn->sock, FALSE, silc_client_start_key_exchange_cb,
+ conn, client->schedule);
}
/* Callback called when error has occurred during connecting to the server.
SilcClient client = (SilcClient)ctx->client;
client->internal->ops->connect(client, ctx->sock->user_data, FALSE);
+ if (ctx->packet)
+ silc_packet_context_free(ctx->packet);
silc_free(ctx);
}
silc_schedule_task_del(client->schedule, ctx->task);
silc_free(ctx);
- if (!silc_client_start_key_exchange(client, conn, fd)) {
- silc_net_close_connection(fd);
- client->internal->ops->connect(client, conn, FALSE);
- }
+ silc_client_start_key_exchange(client, conn, fd);
}
/* Second part of the connecting to the server. This executed
void silc_client_resolve_auth_method(bool success,
SilcProtocolAuthMeth auth_meth,
const unsigned char *auth_data,
- uint32 auth_data_len, void *context)
+ SilcUInt32 auth_data_len, void *context)
{
SilcClientConnAuthInternalContext *proto_ctx =
(SilcClientConnAuthInternalContext *)context;
proto_ctx->auth_meth = auth_meth;
if (auth_data && auth_data_len) {
- proto_ctx->auth_data = silc_calloc(auth_data_len, sizeof(*auth_data));
- memcpy(proto_ctx->auth_data, auth_data, auth_data_len);
+ proto_ctx->auth_data = silc_memdup(auth_data, auth_data_len);
proto_ctx->auth_data_len = auth_data_len;
}
if (proto_ctx->packet)
silc_packet_context_free(proto_ctx->packet);
-
+ if (proto_ctx->dest_id)
+ silc_free(proto_ctx->dest_id);
proto_ctx->packet = silc_packet_context_dup(packet);
proto_ctx->dest_id_type = packet->src_id_type;
proto_ctx->dest_id = silc_id_str2id(packet->src_id, packet->src_id_len,
SilcCipher cipher,
SilcHmac hmac,
unsigned char *data,
- uint32 data_len,
+ SilcUInt32 data_len,
int force_send)
{
SilcPacketContext packetdata;
int block_len;
- uint32 sequence = 0;
+ SilcUInt32 sequence = 0;
if (!sock)
return;
packetdata.dst_id_len = 0;
packetdata.dst_id_type = SILC_ID_NONE;
}
+ data_len = SILC_PACKET_DATALEN(data_len, (SILC_PACKET_HEADER_LEN +
+ packetdata.src_id_len +
+ packetdata.dst_id_len));
packetdata.truelen = data_len + SILC_PACKET_HEADER_LEN +
packetdata.src_id_len + packetdata.dst_id_len;
packetdata.padlen = SILC_PACKET_PADLEN(packetdata.truelen, block_len);
/* Clear ID caches */
if (conn->client_cache)
- silc_idcache_del_all(conn->client_cache);
+ silc_idcache_free(conn->client_cache);
if (conn->channel_cache)
- silc_idcache_del_all(conn->channel_cache);
+ silc_idcache_free(conn->channel_cache);
if (conn->server_cache)
- silc_idcache_del_all(conn->server_cache);
+ silc_idcache_free(conn->server_cache);
- /* Free data (my ID is freed in above silc_client_del_client) */
+ /* Free data (my ID is freed in above silc_client_del_client).
+ conn->nickname is freed when freeing the local_entry->nickname. */
if (conn->remote_host)
silc_free(conn->remote_host);
if (conn->local_id_data)
SILC_LOG_DEBUG(("Server disconnected us, sock %d", sock->sock));
- msg = silc_calloc(message->len + 1, sizeof(char));
- memcpy(msg, message->data, message->len);
+ msg = silc_memdup(message->data, message->len);
client->internal->ops->say(client, sock->user_data,
SILC_CLIENT_MESSAGE_AUDIT, msg);
silc_free(msg);
{
char *msg;
- msg = silc_calloc(message->len + 1, sizeof(char));
- memcpy(msg, message->data, message->len);
+ msg = silc_memdup(message->data, message->len);
client->internal->ops->say(client, sock->user_data,
SILC_CLIENT_MESSAGE_AUDIT, msg);
silc_free(msg);
}
+/* Auto-nicking callback to send NICK command to server. */
+
+SILC_TASK_CALLBACK(silc_client_send_auto_nick)
+{
+ SilcClientConnection conn = (SilcClientConnection)context;
+ SilcClient client = conn->client;
+
+ silc_client_command_send(client, conn, SILC_COMMAND_NICK,
+ ++conn->cmd_ident, 1, 1,
+ client->nickname, strlen(client->nickname));
+}
+
/* Processes the received new Client ID from server. Old Client ID is
deleted from cache and new one is added. */
conn->local_entry->username = strdup(client->username);
if (!conn->local_entry->hostname)
conn->local_entry->hostname = strdup(client->hostname);
- conn->local_entry->server = strdup(conn->remote_host);
+ if (!conn->local_entry->server)
+ conn->local_entry->server = strdup(conn->remote_host);
conn->local_entry->id = conn->local_id;
conn->local_entry->valid = TRUE;
-
+ if (!conn->local_entry->channels)
+ conn->local_entry->channels = silc_hash_table_alloc(1, silc_hash_ptr,
+ NULL, NULL,
+ NULL, NULL, NULL,
+ TRUE);
+
/* Put it to the ID cache */
silc_idcache_add(conn->client_cache, strdup(conn->nickname), conn->local_id,
(void *)conn->local_entry, 0, NULL);
if (connecting) {
- /* Issue INFO comqmand to fetch the real server name and server information
+ /* Send NICK command if the nickname was set by the application (and is
+ not same as the username). Send this with little timeout. */
+ if (client->nickname && strcmp(client->nickname, client->username))
+ silc_schedule_task_add(client->schedule, 0,
+ silc_client_send_auto_nick, conn,
+ 1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
+
+ /* Issue INFO command to fetch the real server name and server information
and other stuff. */
silc_client_command_register(client, SILC_COMMAND_INFO, NULL, NULL,
silc_client_command_reply_info_i, 0,
}
}
-/* Processed received Channel ID for a channel. This is called when client
- joins to channel and server replies with channel ID. The ID is cached.
- Returns the created channel entry. This is also called when received
- channel ID in for example USERS command reply that we do not have. */
-
-SilcChannelEntry silc_client_new_channel_id(SilcClient client,
- SilcSocketConnection sock,
- char *channel_name,
- uint32 mode,
- SilcIDPayload idp)
-{
- SilcClientConnection conn = (SilcClientConnection)sock->user_data;
- SilcChannelEntry channel;
-
- SILC_LOG_DEBUG(("New channel ID"));
-
- channel = silc_calloc(1, sizeof(*channel));
- channel->channel_name = channel_name;
- channel->id = silc_id_payload_get_id(idp);
- channel->mode = mode;
- silc_list_init(channel->clients, struct SilcChannelUserStruct, next);
-
- /* Put it to the ID cache */
- silc_idcache_add(conn->channel_cache, channel->channel_name,
- (void *)channel->id, (void *)channel, 0, NULL);
-
- return channel;
-}
-
-/* Removes a client entry from all channel it has joined. This really is
- a performance killer (client_entry should have pointers to channel
- entry list). */
+/* Removes a client entry from all channels it has joined. */
void silc_client_remove_from_channels(SilcClient client,
SilcClientConnection conn,
SilcClientEntry client_entry)
{
- SilcIDCacheEntry id_cache;
- SilcIDCacheList list;
- SilcChannelEntry channel;
+ SilcHashTableList htl;
SilcChannelUser chu;
- if (!silc_idcache_get_all(conn->channel_cache, &list))
- return;
-
- silc_idcache_list_first(list, &id_cache);
- channel = (SilcChannelEntry)id_cache->context;
-
- while (channel) {
-
- /* Remove client from channel */
- silc_list_start(channel->clients);
- while ((chu = silc_list_get(channel->clients)) != SILC_LIST_END) {
- if (chu->client == client_entry) {
- silc_list_del(channel->clients, chu);
- silc_free(chu);
- break;
- }
- }
-
- if (!silc_idcache_list_next(list, &id_cache))
- break;
-
- channel = (SilcChannelEntry)id_cache->context;
+ silc_hash_table_list(client_entry->channels, &htl);
+ while (silc_hash_table_get(&htl, NULL, (void *)&chu)) {
+ silc_hash_table_del(chu->client->channels, chu->channel);
+ silc_hash_table_del(chu->channel->user_list, chu->client);
+ silc_free(chu);
}
- silc_idcache_list_free(list);
+ silc_hash_table_list_reset(&htl);
}
/* Replaces `old' client entries from all channels to `new' client entry.
SilcClientEntry old,
SilcClientEntry new)
{
- SilcIDCacheEntry id_cache;
- SilcIDCacheList list;
- SilcChannelEntry channel;
+ SilcHashTableList htl;
SilcChannelUser chu;
- if (!silc_idcache_get_all(conn->channel_cache, &list))
- return;
-
- silc_idcache_list_first(list, &id_cache);
- channel = (SilcChannelEntry)id_cache->context;
-
- while (channel) {
-
+ silc_hash_table_list(old->channels, &htl);
+ while (silc_hash_table_get(&htl, NULL, (void *)&chu)) {
/* Replace client entry */
- silc_list_start(channel->clients);
- while ((chu = silc_list_get(channel->clients)) != SILC_LIST_END) {
- if (chu->client == old) {
- chu->client = new;
- break;
- }
- }
-
- if (!silc_idcache_list_next(list, &id_cache))
- break;
+ silc_hash_table_del(chu->client->channels, chu->channel);
+ silc_hash_table_del(chu->channel->user_list, chu->client);
- channel = (SilcChannelEntry)id_cache->context;
+ chu->client = new;
+ silc_hash_table_add(chu->channel->user_list, chu->client, chu);
+ silc_hash_table_add(chu->client->channels, chu->channel, chu);
}
-
- silc_idcache_list_free(list);
+ silc_hash_table_list_reset(&htl);
}
/* Registers failure timeout to process the received failure packet
SilcSocketConnection sock,
SilcPacketContext *packet)
{
- uint32 failure = 0;
+ SilcUInt32 failure = 0;
if (sock->protocol) {
if (packet->buffer->len >= 4)
SilcPacketContext *packet)
{
SilcClientConnection conn = (SilcClientConnection)sock->user_data;
- uint16 conn_type, auth_meth;
+ SilcUInt16 conn_type, auth_meth;
int ret;
/* If we haven't send our request then ignore this one. */