Author: Pekka Riikonen <priikone@silcnet.org>
- Copyright (C) 2006 Pekka Riikonen
+ Copyright (C) 2006 - 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
/************************** Types and definitions ***************************/
+/* Resume session context */
+typedef struct {
+ SilcClient client;
+ SilcClientConnection conn;
+ SilcBufferStruct detach;
+ SilcBuffer auth;
+ char *nickname;
+ unsigned char *id;
+ SilcUInt32 id_len;
+ SilcUInt32 channel_count;
+} *SilcClientResumeSession;
/************************ Static utility functions **************************/
+/* Continues resuming after resolving. Continue after last reply. */
+
+static SilcBool
+silc_client_resume_continue(SilcClient client,
+ SilcClientConnection conn,
+ SilcCommand command,
+ SilcStatus status,
+ SilcStatus error,
+ void *context,
+ va_list ap)
+{
+ if (status == SILC_STATUS_OK || status == SILC_STATUS_LIST_END ||
+ SILC_STATUS_IS_ERROR(status)) {
+ silc_fsm_continue(&conn->internal->event_thread);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+/* Function used to call command replies back to application in resuming. */
+
+static void
+silc_client_resume_command_callback(SilcClient client,
+ SilcClientConnection conn,
+ SilcCommand command, ...)
+{
+ va_list ap;
+ va_start(ap, command);
+ client->internal->ops->command_reply(client, conn, command,
+ SILC_STATUS_OK, SILC_STATUS_OK, ap);
+ va_end(ap);
+}
+
+/* Resume authentication data generation callback */
+
+static void silc_client_resume_auth_generated(const SilcBuffer data,
+ void *context)
+{
+ SilcClientConnection conn = context;
+ SilcClientResumeSession resume =
+ silc_fsm_get_state_context(&conn->internal->event_thread);
+
+ if (!data)
+ silc_fsm_next(&conn->internal->event_thread, silc_client_st_resume_error);
+ else
+ resume->auth = silc_buffer_copy(data);
+
+ SILC_FSM_CALL_CONTINUE_SYNC(&conn->internal->event_thread);
+}
+
/****************************** NEW_ID packet *******************************/
SilcClientConnection conn = fsm_context;
SilcClient client = conn->client;
SilcPacket packet = state_context;
+ char *nick;
SilcID id;
if (conn->local_id)
silc_buffer_len(&packet->buffer), &id))
goto out;
+ SILC_LOG_DEBUG(("New ID %s", silc_id_render(&id.u.client_id,
+ SILC_ID_CLIENT)));
+
+ /* From SILC protocol version 1.3, nickname is in NEW_CLIENT packet */
+ if (conn->internal->remote_version >= 13)
+ nick = (conn->internal->params.nickname ?
+ conn->internal->params.nickname : client->username);
+ else
+ nick = client->username;
+
/* Create local client entry */
- conn->local_entry = silc_client_add_client(client, conn,
- (client->nickname ?
- client->nickname :
- client->username),
+ conn->local_entry = silc_client_add_client(client, conn, nick,
client->username,
client->realname,
&id.u.client_id, 0);
if (!conn->local_entry)
goto out;
- /* Save the ID */
+ /* Save the ID. Take reference to conn->local_id. */
conn->local_id = &conn->local_entry->id;
- conn->local_idp = silc_buffer_copy(&packet->buffer);
-
- /* Save cache entry */
- silc_idcache_find_by_id_one(conn->internal->client_cache, conn->local_id,
- &conn->internal->local_entry);
+ conn->internal->local_idp = silc_buffer_copy(&packet->buffer);
/* Save remote ID */
if (packet->src_id_len) {
- conn->remote_idp = silc_id_payload_encode_data(packet->src_id,
- packet->src_id_len,
- packet->src_id_type);
- if (!conn->remote_idp)
+ conn->internal->remote_idp =
+ silc_id_payload_encode_data(packet->src_id,
+ packet->src_id_len,
+ packet->src_id_type);
+ if (!conn->internal->remote_idp)
goto out;
- silc_id_payload_parse_id(silc_buffer_data(conn->remote_idp),
- silc_buffer_len(conn->remote_idp),
+ silc_id_payload_parse_id(silc_buffer_data(conn->internal->remote_idp),
+ silc_buffer_len(conn->internal->remote_idp),
&conn->remote_id);
}
+ /* Set IDs to the packet stream */
+ silc_packet_set_ids(conn->stream, SILC_ID_CLIENT, conn->local_id,
+ conn->remote_id.type, SILC_ID_GET_ID(conn->remote_id));
+
/* Signal connection that new ID was received so it can continue
with the registering. */
if (conn->internal->registering)
{
SilcClientConnection conn = fsm_context;
SilcClient client = conn->client;
+ char *nick = NULL;
SILC_LOG_DEBUG(("Register to network"));
+ /* From SILC protocol version 1.3, nickname is in NEW_CLIENT packet */
+ if (conn->internal->remote_version >= 13)
+ nick = (conn->internal->params.nickname ?
+ conn->internal->params.nickname : client->username);
+
/* Send NEW_CLIENT packet to register to network */
if (!silc_packet_send_va(conn->stream, SILC_PACKET_NEW_CLIENT, 0,
SILC_STR_UI_SHORT(strlen(client->username)),
SILC_STR_UI_SHORT(strlen(client->realname)),
SILC_STR_DATA(client->realname,
strlen(client->realname)),
+ SILC_STR_UI_SHORT(nick ? strlen(nick) : 0),
+ SILC_STR_DATA(nick, nick ? strlen(nick) : 0),
SILC_STR_END)) {
/** Error sending packet */
silc_fsm_next(fsm, silc_client_st_register_error);
/** Wait for new ID */
conn->internal->registering = TRUE;
- silc_fsm_next_later(fsm, silc_client_st_register_complete, 15, 0);
+ silc_fsm_next_later(fsm, silc_client_st_register_complete,
+ conn->internal->retry_timer, 0);
return SILC_FSM_WAIT;
}
SilcClientConnection conn = fsm_context;
SilcClient client = conn->client;
- if (!conn->local_id) {
- /* Timeout, ID not received */
- conn->internal->registering = FALSE;
+ if (conn->internal->disconnected) {
+ /** Disconnected */
silc_fsm_next(fsm, silc_client_st_register_error);
return SILC_FSM_CONTINUE;
}
+ if (!conn->local_id) {
+ if (conn->internal->retry_count++ >= SILC_CLIENT_RETRY_COUNT) {
+ /** Timeout, ID not received */
+ conn->internal->registering = FALSE;
+ conn->internal->retry_count = 0;
+ conn->internal->retry_timer = SILC_CLIENT_RETRY_MIN;
+ silc_fsm_next(fsm, silc_client_st_register_error);
+ return SILC_FSM_CONTINUE;
+ }
+
+ /** Resend registering packet */
+ silc_fsm_next(fsm, silc_client_st_register);
+ conn->internal->retry_timer = ((conn->internal->retry_timer *
+ SILC_CLIENT_RETRY_MUL) +
+ (silc_rng_get_rn16(client->rng) %
+ SILC_CLIENT_RETRY_RAND));
+ return SILC_FSM_CONTINUE;
+ }
+
SILC_LOG_DEBUG(("Registered to network"));
/* Issue IDENTIFY command for itself to get resolved hostname
correctly from server. */
- silc_client_command_send(client, conn, SILC_COMMAND_IDENTIFY, NULL, NULL,
- 1, 5, silc_buffer_data(conn->local_idp),
- silc_buffer_len(conn->local_idp));
-
- /* 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 &&
- !silc_utf8_strcasecmp(client->nickname, client->username))
- silc_client_command_send(client, conn, SILC_COMMAND_NICK, NULL, NULL,
- 1, 1, client->nickname, strlen(client->nickname));
+ silc_client_command_send(client, conn, SILC_COMMAND_IDENTIFY,
+ silc_client_command_called_dummy, NULL,
+ 1, 5, silc_buffer_data(conn->internal->local_idp),
+ silc_buffer_len(conn->internal->local_idp));
+
+ /* With SILC protocol version 1.2 call NICK command if the nickname was
+ set by the application. */
+ if (conn->internal->params.nickname && conn->internal->remote_version < 13 &&
+ !silc_utf8_strcasecmp(conn->internal->params.nickname, client->username))
+ silc_client_command_call(client, conn, NULL,
+ "NICK", conn->internal->params.nickname, NULL);
/* Issue INFO command to fetch the real server name and server
information and other stuff. */
- silc_client_command_send(client, conn, SILC_COMMAND_INFO, NULL, NULL,
- 1, 2, silc_buffer_data(conn->remote_idp),
- silc_buffer_len(conn->remote_idp));
+ silc_client_command_send(client, conn, SILC_COMMAND_INFO,
+ silc_client_command_called_dummy, NULL,
+ 1, 2, silc_buffer_data(conn->internal->remote_idp),
+ silc_buffer_len(conn->internal->remote_idp));
/* Call connection callback. We are now inside SILC network. */
conn->callback(client, conn, SILC_CLIENT_CONN_SUCCESS, 0, NULL,
- conn->context);
+ conn->callback_context);
conn->internal->registering = FALSE;
+ silc_schedule_task_del_by_all(conn->internal->schedule, 0,
+ silc_client_connect_timeout, conn);
+ silc_async_free(conn->internal->cop);
+ conn->internal->cop = NULL;
+
return SILC_FSM_FINISH;
}
+/* Error registering to network */
+
SILC_FSM_STATE(silc_client_st_register_error)
{
SilcClientConnection conn = fsm_context;
- SilcClient client = conn->client;
- /* XXX */
- /* Close connection */
+ SILC_LOG_DEBUG(("Error registering to network"));
- conn->callback(client, conn, SILC_CLIENT_CONN_ERROR, 0, NULL, conn->context);
+ /* Signal to close connection */
+ conn->internal->status = SILC_CLIENT_CONN_ERROR;
+ if (!conn->internal->disconnected) {
+ conn->internal->disconnected = TRUE;
+ SILC_FSM_EVENT_SIGNAL(&conn->internal->wait_event);
+ }
+
+ silc_schedule_task_del_by_all(conn->internal->schedule, 0,
+ silc_client_connect_timeout, conn);
return SILC_FSM_FINISH;
}
-
/************************* Resume detached session **************************/
/* Resume detached session */
SILC_FSM_STATE(silc_client_st_resume)
{
+ SilcClientConnection conn = fsm_context;
+ SilcClient client = conn->client;
+ SilcClientResumeSession resume;
+ unsigned char *id;
+ SilcUInt16 id_len;
+ SilcClientID client_id;
+ int ret;
+
+ SILC_LOG_DEBUG(("Resuming detached session"));
+
+ resume = silc_calloc(1, sizeof(*resume));
+ if (!resume) {
+ /** Out of memory */
+ silc_fsm_next(fsm, silc_client_st_resume_error);
+ return SILC_FSM_CONTINUE;
+ }
+ silc_fsm_set_state_context(fsm, resume);
+
+ silc_buffer_set(&resume->detach, conn->internal->params.detach_data,
+ conn->internal->params.detach_data_len);
+ SILC_LOG_HEXDUMP(("Detach data"), silc_buffer_data(&resume->detach),
+ silc_buffer_len(&resume->detach));
+
+ /* Take the old client ID from the detachment data */
+ ret = silc_buffer_unformat(&resume->detach,
+ SILC_STR_ADVANCE,
+ SILC_STR_UI16_NSTRING_ALLOC(&resume->nickname,
+ NULL),
+ SILC_STR_UI16_NSTRING(&id, &id_len),
+ SILC_STR_UI_INT(NULL),
+ SILC_STR_UI_INT(&resume->channel_count),
+ SILC_STR_END);
+ if (ret < 0) {
+ /** Malformed detach data */
+ SILC_LOG_DEBUG(("Malformed detachment data"));
+ silc_fsm_next(fsm, silc_client_st_resume_error);
+ return SILC_FSM_CONTINUE;
+ }
- return SILC_FSM_FINISH;
+ if (!silc_id_str2id(id, id_len, SILC_ID_CLIENT, &client_id,
+ sizeof(client_id))) {
+ /** Malformed ID */
+ SILC_LOG_DEBUG(("Malformed ID"));
+ silc_fsm_next(fsm, silc_client_st_resume_error);
+ return SILC_FSM_CONTINUE;
+ }
+ resume->id = id;
+ resume->id_len = id_len;
+
+ /* Generate authentication data that server will verify */
+ silc_fsm_next(fsm, silc_client_st_resume_send);
+ SILC_FSM_CALL(silc_auth_public_key_auth_generate(
+ conn->public_key, conn->private_key,
+ client->rng, conn->internal->hash,
+ &client_id, SILC_ID_CLIENT,
+ silc_client_resume_auth_generated, conn));
+ /* NOT REACHED */
}
-SILC_FSM_STATE(silc_client_st_resume_new_id)
+/* Send RESUME_CLIENT packet */
+
+SILC_FSM_STATE(silc_client_st_resume_send)
{
SilcClientConnection conn = fsm_context;
+ SilcClientResumeSession resume = state_context;
+
+ SILC_LOG_DEBUG(("Send RESUME_CLIENT packet"));
+
+ /* Send RESUME_CLIENT packet to resume to network */
+ if (!silc_packet_send_va(conn->stream, SILC_PACKET_RESUME_CLIENT, 0,
+ SILC_STR_UI_SHORT(resume->id_len),
+ SILC_STR_DATA(resume->id, resume->id_len),
+ SILC_STR_DATA(silc_buffer_data(resume->auth),
+ silc_buffer_len(resume->auth)),
+ SILC_STR_END)) {
+ /** Error sending packet */
+ SILC_LOG_DEBUG(("Error sending packet"));
+ silc_fsm_next(fsm, silc_client_st_resume_error);
+ return SILC_FSM_CONTINUE;
+ }
+
+ /** Wait for new ID */
+ conn->internal->registering = TRUE;
+ silc_fsm_next_later(fsm, silc_client_st_resume_resolve_channels, 15, 0);
+ return SILC_FSM_WAIT;
+}
+
+/* Resolve the old session information, user mode and joined channels. */
+
+SILC_FSM_STATE(silc_client_st_resume_resolve_channels)
+{
+ SilcClientConnection conn = fsm_context;
+ SilcClient client = conn->client;
+ SilcClientResumeSession resume = state_context;
+ SilcUInt32 *res_argv_lens = NULL, *res_argv_types = NULL, res_argc = 0;
+ unsigned char **res_argv = NULL;
+ int i;
+
+ if (conn->internal->disconnected) {
+ /** Disconnected */
+ silc_fsm_next(fsm, silc_client_st_resume_error);
+ return SILC_FSM_CONTINUE;
+ }
+
+ if (!conn->local_id) {
+ /** Timeout, ID not received */
+ conn->internal->registering = FALSE;
+ silc_fsm_next(fsm, silc_client_st_resume_error);
+ return SILC_FSM_CONTINUE;
+ }
+
+ /** Wait for channels */
+ silc_fsm_next(fsm, silc_client_st_resume_resolve_cmodes);
+
+ /* Change our nickname */
+ silc_client_change_nickname(client, conn, conn->local_entry,
+ resume->nickname, NULL, NULL, 0);
+
+ /* Send UMODE command to get our own user mode in the network */
+ SILC_LOG_DEBUG(("Resolving user mode"));
+ silc_client_command_send(client, conn, SILC_COMMAND_UMODE,
+ silc_client_command_called_dummy, NULL,
+ 1, 1, silc_buffer_data(conn->internal->local_idp),
+ silc_buffer_len(conn->internal->local_idp));
+
+ if (!resume->channel_count)
+ return SILC_FSM_YIELD;
+
+ /* Send IDENTIFY command for all channels we know about. These are the
+ channels we've joined to according our detachment data. */
+ for (i = 0; i < resume->channel_count; i++) {
+ SilcChannelEntry channel;
+ unsigned char *chid;
+ SilcUInt16 chid_len;
+ SilcBuffer idp;
+ SilcChannelID channel_id;
+ char *name;
+
+ if (silc_buffer_unformat(&resume->detach,
+ SILC_STR_ADVANCE,
+ SILC_STR_UI16_NSTRING(&name, NULL),
+ SILC_STR_UI16_NSTRING(&chid, &chid_len),
+ SILC_STR_UI_INT(NULL),
+ SILC_STR_END) < 0)
+ continue;
+
+ if (!silc_id_str2id(chid, chid_len, SILC_ID_CHANNEL, &channel_id,
+ sizeof(channel_id)))
+ continue;
+ idp = silc_id_payload_encode_data(chid, chid_len, SILC_ID_CHANNEL);
+ if (!idp)
+ continue;
+
+ /* Add the channel to cache */
+ channel = silc_client_get_channel_by_id(client, conn, &channel_id);
+ if (!channel)
+ silc_client_add_channel(client, conn, name, 0, &channel_id);
+ else
+ silc_client_unref_channel(client, conn, channel);
+
+ res_argv = silc_realloc(res_argv, sizeof(*res_argv) * (res_argc + 1));
+ res_argv_lens = silc_realloc(res_argv_lens, sizeof(*res_argv_lens) *
+ (res_argc + 1));
+ res_argv_types = silc_realloc(res_argv_types, sizeof(*res_argv_types) *
+ (res_argc + 1));
+ res_argv[res_argc] = silc_buffer_steal(idp, &res_argv_lens[res_argc]);
+ res_argv_types[res_argc] = res_argc + 5;
+ res_argc++;
+ silc_buffer_free(idp);
+ }
+
+ /* Send IDENTIFY command */
+ SILC_LOG_DEBUG(("Resolving joined channels"));
+ silc_client_command_send_argv(client, conn, SILC_COMMAND_IDENTIFY,
+ silc_client_resume_continue, conn,
+ res_argc, res_argv, res_argv_lens,
+ res_argv_types);
+
+ for (i = 0; i < resume->channel_count; i++)
+ silc_free(res_argv[i]);
+ silc_free(res_argv);
+ silc_free(res_argv_lens);
+ silc_free(res_argv_types);
+
+ return SILC_FSM_WAIT;
+}
+
+/* Resolve joined channel modes, users and topics. */
+
+SILC_FSM_STATE(silc_client_st_resume_resolve_cmodes)
+{
+ SilcClientConnection conn = fsm_context;
+ SilcClient client = conn->client;
+ SilcClientResumeSession resume = state_context;
+ SilcIDCacheEntry entry;
+ SilcChannelEntry channel;
+ SilcList channels;
+ SilcBuffer idp;
+
+ if (conn->internal->disconnected) {
+ /** Disconnected */
+ silc_fsm_next(fsm, silc_client_st_resume_error);
+ return SILC_FSM_CONTINUE;
+ }
+
+ SILC_LOG_DEBUG(("Resolving channel details"));
+
+ /** Wait for channel modes */
+ silc_fsm_next(fsm, silc_client_st_resume_completed);
+
+ if (!silc_idcache_get_all(conn->internal->channel_cache, &channels))
+ return SILC_FSM_YIELD;
+
+ /* Resolve channels' mode, users and topic */
+ resume->channel_count = silc_list_count(channels) * 3;
+ silc_list_start(channels);
+ while ((entry = silc_list_get(channels))) {
+ channel = entry->context;
+ idp = silc_id_payload_encode(&channel->id, SILC_ID_CHANNEL);
+ if (!idp)
+ continue;
+
+ silc_client_command_send(client, conn, SILC_COMMAND_CMODE,
+ silc_client_resume_continue, conn, 1,
+ 1, silc_buffer_data(idp),
+ silc_buffer_len(idp));
+ silc_client_command_send(client, conn, SILC_COMMAND_USERS,
+ silc_client_resume_continue, conn, 1,
+ 1, silc_buffer_data(idp),
+ silc_buffer_len(idp));
+ silc_client_command_send(client, conn, SILC_COMMAND_TOPIC,
+ silc_client_resume_continue, conn, 1,
+ 1, silc_buffer_data(idp),
+ silc_buffer_len(idp));
+ silc_buffer_free(idp);
+ }
+
+ return SILC_FSM_WAIT;
+}
+
+/* Resuming completed */
+
+SILC_FSM_STATE(silc_client_st_resume_completed)
+{
+ SilcClientConnection conn = fsm_context;
+ SilcClient client = conn->client;
+ SilcClientResumeSession resume = state_context;
+ SilcIDCacheEntry entry;
+ SilcChannelEntry channel;
+ SilcList channels;
+
+ if (conn->internal->disconnected) {
+ /** Disconnected */
+ silc_fsm_next(fsm, silc_client_st_resume_error);
+ return SILC_FSM_CONTINUE;
+ }
+
+ if (resume->channel_count > 0) {
+ resume->channel_count--;
+ if (resume->channel_count)
+ return SILC_FSM_WAIT;
+ }
+
+ SILC_LOG_DEBUG(("Resuming completed"));
+
+ /* Issue IDENTIFY command for itself to get resolved hostname
+ correctly from server. */
+ silc_client_command_send(client, conn, SILC_COMMAND_IDENTIFY,
+ silc_client_command_called_dummy, NULL,
+ 1, 5, silc_buffer_data(conn->internal->local_idp),
+ silc_buffer_len(conn->internal->local_idp));
+
+ /* Issue INFO command to fetch the real server name and server
+ information and other stuff. */
+ silc_client_command_send(client, conn, SILC_COMMAND_INFO,
+ silc_client_command_called_dummy, NULL,
+ 1, 2, silc_buffer_data(conn->internal->remote_idp),
+ silc_buffer_len(conn->internal->remote_idp));
+
+ /* Call connection callback. We have now resumed to SILC network. */
+ conn->callback(client, conn, SILC_CLIENT_CONN_SUCCESS_RESUME, 0, NULL,
+ conn->callback_context);
+
+ /* Call UMODE command reply. */
+ if (conn->local_entry->mode)
+ silc_client_resume_command_callback(client, conn, SILC_COMMAND_UMODE,
+ conn->local_entry->mode);
+
+ /* Call NICK command reply. */
+ silc_client_resume_command_callback(client, conn, SILC_COMMAND_NICK,
+ conn->local_entry,
+ conn->local_entry->nickname,
+ &conn->local_entry->id);
+
+ /* Call JOIN command replies for all joined channel */
+ if (silc_idcache_get_all(conn->internal->channel_cache, &channels)) {
+ silc_list_start(channels);
+ while ((entry = silc_list_get(channels))) {
+ SilcHashTableList htl;
+ const char *cipher, *hmac;
+
+ channel = entry->context;
+ cipher = (channel->internal.send_key ?
+ silc_cipher_get_name(channel->internal.send_key) : NULL);
+ hmac = (channel->internal.hmac ?
+ silc_hmac_get_name(channel->internal.hmac) : NULL);
+ silc_hash_table_list(channel->user_list, &htl);
+ silc_client_resume_command_callback(client, conn, SILC_COMMAND_JOIN,
+ channel->channel_name, channel,
+ channel->mode, &htl, channel->topic,
+ cipher, hmac, channel->founder_key,
+ channel->channel_pubkeys,
+ channel->user_limit);
+ silc_hash_table_list_reset(&htl);
+ }
+ }
+
+ conn->internal->registering = FALSE;
+ silc_schedule_task_del_by_all(conn->internal->schedule, 0,
+ silc_client_connect_timeout, conn);
+ silc_free(resume->nickname);
+ silc_free(resume);
+ silc_async_free(conn->internal->cop);
+ conn->internal->cop = NULL;
return SILC_FSM_FINISH;
}
+/* Error resuming to network */
+
SILC_FSM_STATE(silc_client_st_resume_error)
{
- /* XXX */
- /* Close connection */
+ SilcClientConnection conn = fsm_context;
+ SilcClientResumeSession resume = state_context;
+
+ if (conn->internal->disconnected) {
+ if (resume) {
+ silc_free(resume->nickname);
+ silc_free(resume);
+ }
+ return SILC_FSM_FINISH;
+ }
+
+ SILC_LOG_DEBUG(("Error resuming to network"));
+
+ /* Signal to close connection */
+ conn->internal->status = SILC_CLIENT_CONN_ERROR;
+ if (!conn->internal->disconnected) {
+ conn->internal->disconnected = TRUE;
+ SILC_FSM_EVENT_SIGNAL(&conn->internal->wait_event);
+ }
+
+ silc_schedule_task_del_by_all(conn->internal->schedule, 0,
+ silc_client_connect_timeout, conn);
+
+ if (resume) {
+ silc_free(resume->nickname);
+ silc_free(resume);
+ }
return SILC_FSM_FINISH;
}
+
+/* Generates the session detachment data. This data can be used later
+ to resume back to the server. */
+
+SilcBuffer silc_client_get_detach_data(SilcClient client,
+ SilcClientConnection conn)
+{
+ SilcBuffer detach;
+ SilcHashTableList htl;
+ SilcChannelUser chu;
+ unsigned char id[64];
+ SilcUInt32 id_len;
+ int ret, ch_count;
+
+ SILC_LOG_DEBUG(("Creating detachment data"));
+
+ ch_count = silc_hash_table_count(conn->local_entry->channels);
+ silc_id_id2str(conn->local_id, SILC_ID_CLIENT, id, sizeof(id), &id_len);
+
+ /* Save the nickname, Client ID and user mode in SILC network */
+ detach = silc_buffer_alloc(0);
+ if (!detach)
+ return NULL;
+ ret =
+ silc_buffer_format(detach,
+ SILC_STR_ADVANCE,
+ SILC_STR_UI_SHORT(strlen(conn->local_entry->nickname)),
+ SILC_STR_DATA(conn->local_entry->nickname,
+ strlen(conn->local_entry->nickname)),
+ SILC_STR_UI_SHORT(id_len),
+ SILC_STR_DATA(id, id_len),
+ SILC_STR_UI_INT(conn->local_entry->mode),
+ SILC_STR_UI_INT(ch_count),
+ SILC_STR_END);
+ if (ret < 0) {
+ silc_buffer_free(detach);
+ return NULL;
+ }
+
+ /* Save all joined channels */
+ silc_hash_table_list(conn->local_entry->channels, &htl);
+ while (silc_hash_table_get(&htl, NULL, (void *)&chu)) {
+ unsigned char chid[32];
+ SilcUInt32 chid_len;
+
+ silc_id_id2str(&chu->channel->id, SILC_ID_CHANNEL, chid, sizeof(chid),
+ &chid_len);
+ silc_buffer_format(detach,
+ SILC_STR_ADVANCE,
+ SILC_STR_UI_SHORT(strlen(chu->channel->channel_name)),
+ SILC_STR_DATA(chu->channel->channel_name,
+ strlen(chu->channel->channel_name)),
+ SILC_STR_UI_SHORT(chid_len),
+ SILC_STR_DATA(chid, chid_len),
+ SILC_STR_UI_INT(chu->channel->mode),
+ SILC_STR_END);
+ }
+ silc_hash_table_list_reset(&htl);
+
+ silc_buffer_start(detach);
+ SILC_LOG_HEXDUMP(("Detach data"), silc_buffer_data(detach),
+ silc_buffer_len(detach));
+
+ return detach;
+}
projects / silc.git / blobdiff