/************************** Types and definitions ***************************/
+/* Resume session context */
+typedef struct {
+ SilcClient client;
+ SilcClientConnection conn;
+ SilcBufferStruct detach;
+ char *nickname;
+ SilcClientID client_id;
+ SilcUInt32 channel_count;
+ SilcUInt32 *cmd_idents;
+ SilcUInt32 cmd_idents_count;
+ SilcBool success;
+} *SilcClientResumeSession;
/************************ Static utility functions **************************/
+/* Command callback. Nothing interesting to do here. */
+
+static SilcBool
+silc_client_register_command_called(SilcClient client,
+ SilcClientConnection conn,
+ SilcCommand command,
+ SilcStatus status,
+ SilcStatus error,
+ void *context,
+ va_list ap)
+{
+ return TRUE;
+}
+
+/****************************** NEW_ID packet *******************************/
+
+/* Received new ID packet from server during registering to SILC network */
+
+SILC_FSM_STATE(silc_client_new_id)
+{
+ SilcClientConnection conn = fsm_context;
+ SilcClient client = conn->client;
+ SilcPacket packet = state_context;
+ SilcID id;
+
+ if (conn->local_id)
+ goto out;
+
+ SILC_LOG_DEBUG(("New ID received from server"));
+
+ if (!silc_id_payload_parse_id(silc_buffer_data(&packet->buffer),
+ silc_buffer_len(&packet->buffer), &id))
+ goto out;
+
+ SILC_LOG_DEBUG(("New ID %s", silc_id_render(&id.u.client_id,
+ SILC_ID_CLIENT)));
+
+ /* Create local client entry */
+ conn->local_entry = silc_client_add_client(client, conn,
+ client->username,
+ client->username,
+ client->realname,
+ &id.u.client_id, 0);
+ if (!conn->local_entry)
+ goto out;
+
+ /* Save the ID */
+ conn->local_id = &conn->local_entry->id;
+ conn->internal->local_idp = silc_buffer_copy(&packet->buffer);
+
+ /* Save cache entry */
+ silc_mutex_lock(conn->internal->lock);
+ if (!silc_idcache_find_by_id_one(conn->internal->client_cache,
+ conn->local_id,
+ &conn->internal->local_entry)) {
+ silc_mutex_unlock(conn->internal->lock);
+ goto out;
+ }
+ silc_mutex_unlock(conn->internal->lock);
+
+ /* Save remote ID */
+ if (packet->src_id_len) {
+ 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->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)
+ silc_fsm_continue_sync(&conn->internal->event_thread);
+
+ out:
+ /** Packet processed */
+ silc_packet_free(packet);
+ return SILC_FSM_FINISH;
+}
+
/************************ Register to SILC network **************************/
{
SilcClientConnection conn = fsm_context;
SilcClient client = conn->client;
- SilcBufferStruct buf;
- int ret;
SILC_LOG_DEBUG(("Register to network"));
- memset(&buf, 0, sizeof(buf));
- ret = silc_buffer_format(&buf,
+ /* 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_DATA(client->username,
strlen(client->username)),
SILC_STR_UI_SHORT(strlen(client->realname)),
SILC_STR_DATA(client->realname,
strlen(client->realname)),
- SILC_STR_END);
- if (ret < 0) {
- /** Out of memory */
- silc_fsm_next(fsm, silc_client_st_register_error);
- return SILC_FSM_CONTINUE;
- }
-
- /* Send the packet */
- if (!silc_packet_send(conn->stream, SILC_PACKET_NEW_CLIENT, 0,
- silc_buffer_data(&buf), silc_buffer_len(&buf))) {
+ SILC_STR_END)) {
/** Error sending packet */
- silc_buffer_purge(&buf);
silc_fsm_next(fsm, silc_client_st_register_error);
return SILC_FSM_CONTINUE;
}
- silc_buffer_purge(&buf);
-
/** 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;
}
SilcClient client = conn->client;
if (!conn->local_id) {
- /* Timeout, ID not received */
- conn->internal->registering = FALSE;
- silc_fsm_next(fsm, silc_client_st_register_error);
+ 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;
}
/* 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_register_command_called, NULL,
+ 1, 5, silc_buffer_data(conn->internal->local_idp),
+ silc_buffer_len(conn->internal->local_idp));
+
+ /* Call NICK command if the nickname was set by the application (and is
+ not same as the username). */
+ if (conn->internal->params.nickname &&
+ !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_register_command_called, 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, conn->context);
+ conn->callback(client, conn, SILC_CLIENT_CONN_SUCCESS, 0, NULL,
+ conn->callback_context);
conn->internal->registering = FALSE;
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"));
+
+ /* Signal to close connection */
+ conn->internal->disconnected = TRUE;
+ SILC_FSM_SEMA_POST(&conn->internal->wait_event);
- conn->callback(client, conn, SILC_CLIENT_CONN_ERROR, conn->context);
+ /* Call connect callback */
+ conn->callback(client, conn, SILC_CLIENT_CONN_ERROR, 0, NULL,
+ conn->callback_context);
return SILC_FSM_FINISH;
}
SILC_FSM_STATE(silc_client_st_resume)
{
+ SilcClientConnection conn = fsm_context;
+ SilcClient client = conn->client;
+ SilcClientResumeSession resume;
+ SilcBuffer auth;
+ unsigned char *id;
+ SilcUInt16 id_len;
+ int ret;
- return SILC_FSM_FINISH;
+ 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_fsm_next(fsm, silc_client_st_resume_error);
+ return SILC_FSM_CONTINUE;
+ }
+
+ if (!silc_id_str2id(id, id_len, SILC_ID_CLIENT, &resume->client_id,
+ sizeof(resume->client_id))) {
+ /** Malformed ID */
+ silc_fsm_next(fsm, silc_client_st_resume_error);
+ return SILC_FSM_CONTINUE;
+ }
+
+ /* Generate authentication data that server will verify */
+ auth = silc_auth_public_key_auth_generate(conn->public_key,
+ conn->private_key,
+ client->rng,
+ conn->internal->hash,
+ &resume->client_id,
+ SILC_ID_CLIENT);
+ if (!auth) {
+ /** Out of memory */
+ silc_fsm_next(fsm, silc_client_st_resume_error);
+ return SILC_FSM_CONTINUE;
+ }
+
+ /* Send RESUME_CLIENT packet to resume to network */
+ if (!silc_packet_send_va(conn->stream, SILC_PACKET_RESUME_CLIENT, 0,
+ SILC_STR_UI_SHORT(id_len),
+ SILC_STR_UI_XNSTRING(id, id_len),
+ SILC_STR_UI_XNSTRING(silc_buffer_data(auth),
+ silc_buffer_len(auth)),
+ SILC_STR_END)) {
+ /** 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, 15, 0);
+ return SILC_FSM_WAIT;
}
-SILC_FSM_STATE(silc_client_st_resume_new_id)
+/* Resolve the old session information */
+
+SILC_FSM_STATE(silc_client_st_resume_resolve)
{
+#if 0
SilcClientConnection conn = fsm_context;
+ SilcClientResumeSession resume = state_context;
+
+ 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;
+ }
+
+
+ for (i = 0; i < ch_count; i++) {
+ char *channel;
+ unsigned char *chid;
+ SilcUInt16 chid_len;
+ SilcUInt32 ch_mode;
+ SilcChannelID *channel_id;
+ SilcChannelEntry channel_entry;
+
+ len = silc_buffer_unformat(&detach,
+ SILC_STR_UI16_NSTRING_ALLOC(&channel, NULL),
+ SILC_STR_UI16_NSTRING(&chid, &chid_len),
+ SILC_STR_UI_INT(&ch_mode),
+ SILC_STR_END);
+ if (len == -1)
+ return FALSE;
+
+ /* Add new channel */
+ channel_id = silc_id_str2id(chid, chid_len, SILC_ID_CHANNEL);
+ channel_entry = silc_client_get_channel_by_id(client, conn, channel_id);
+ if (!channel_entry) {
+ channel_entry = silc_client_add_channel(client, conn, channel, ch_mode,
+ channel_id);
+ } else {
+ silc_free(channel);
+ silc_free(channel_id);
+ }
+
+ silc_buffer_pull(&detach, len);
+ }
+#endif /* 0 */
return SILC_FSM_FINISH;
}
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;
+ int ret, ch_count;
+
+ SILC_LOG_DEBUG(("Creating detachment data"));
+
+ ch_count = silc_hash_table_count(conn->local_entry->channels);
+
+ /* 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(silc_buffer_len(conn->internal->
+ local_idp)),
+ SILC_STR_DATA(silc_buffer_data(conn->internal->
+ local_idp),
+ silc_buffer_len(conn->internal->
+ local_idp)),
+ 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_free(chid);
+ }
+ 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