command.c
- Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
+ 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
static void
silc_server_command_send_status_reply(SilcServerCommandContext cmd,
SilcCommand command,
- SilcCommandStatus status);
+ SilcStatus status,
+ SilcStatus error);
static void
silc_server_command_send_status_data(SilcServerCommandContext cmd,
SilcCommand command,
- SilcCommandStatus status,
- unsigned int arg_type,
- unsigned char *arg,
- unsigned int arg_len);
+ SilcStatus status,
+ SilcStatus error,
+ SilcUInt32 arg_type,
+ const unsigned char *arg,
+ SilcUInt32 arg_len);
+static bool
+silc_server_command_pending_error_check(SilcServerCommandContext cmd,
+ SilcServerCommandReplyContext cmdr,
+ SilcCommand command);
+SILC_TASK_CALLBACK(silc_server_command_process_timeout);
/* Server command list. */
SilcServerCommand silc_command_list[] =
SILC_SERVER_CMD(whois, WHOIS, SILC_CF_LAG | SILC_CF_REG),
SILC_SERVER_CMD(whowas, WHOWAS, SILC_CF_LAG | SILC_CF_REG),
SILC_SERVER_CMD(identify, IDENTIFY, SILC_CF_LAG | SILC_CF_REG),
- SILC_SERVER_CMD(nick, NICK, SILC_CF_LAG | SILC_CF_REG),
- SILC_SERVER_CMD(list, LIST, SILC_CF_LAG | SILC_CF_REG),
+ SILC_SERVER_CMD(nick, NICK, SILC_CF_LAG_STRICT | SILC_CF_REG),
+ SILC_SERVER_CMD(list, LIST, SILC_CF_LAG_STRICT | SILC_CF_REG),
SILC_SERVER_CMD(topic, TOPIC, SILC_CF_LAG | SILC_CF_REG),
SILC_SERVER_CMD(invite, INVITE, SILC_CF_LAG | SILC_CF_REG),
SILC_SERVER_CMD(quit, QUIT, SILC_CF_LAG | SILC_CF_REG),
- SILC_SERVER_CMD(kill, KILL, SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
+ SILC_SERVER_CMD(kill, KILL, SILC_CF_LAG_STRICT | SILC_CF_REG | SILC_CF_OPER),
SILC_SERVER_CMD(info, INFO, SILC_CF_LAG | SILC_CF_REG),
- SILC_SERVER_CMD(connect, CONNECT,
- SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
+ SILC_SERVER_CMD(stats, STATS, SILC_CF_LAG | SILC_CF_REG),
SILC_SERVER_CMD(ping, PING, SILC_CF_LAG | SILC_CF_REG),
SILC_SERVER_CMD(oper, OPER, SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
- SILC_SERVER_CMD(join, JOIN, SILC_CF_LAG | SILC_CF_REG),
+ SILC_SERVER_CMD(join, JOIN, SILC_CF_LAG_STRICT | SILC_CF_REG),
SILC_SERVER_CMD(motd, MOTD, SILC_CF_LAG | SILC_CF_REG),
SILC_SERVER_CMD(umode, UMODE, SILC_CF_LAG | SILC_CF_REG),
- SILC_SERVER_CMD(cmode, CMODE, SILC_CF_LAG | SILC_CF_REG),
+ SILC_SERVER_CMD(cmode, CMODE, SILC_CF_LAG_STRICT | SILC_CF_REG),
SILC_SERVER_CMD(cumode, CUMODE, SILC_CF_LAG | SILC_CF_REG),
- SILC_SERVER_CMD(kick, KICK, SILC_CF_LAG | SILC_CF_REG),
- SILC_SERVER_CMD(restart, RESTART,
- SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
- SILC_SERVER_CMD(close, CLOSE,
- SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
- SILC_SERVER_CMD(shutdown, SHUTDOWN, SILC_CF_LAG | SILC_CF_REG |
- SILC_CF_OPER),
+ SILC_SERVER_CMD(kick, KICK, SILC_CF_LAG_STRICT | SILC_CF_REG),
+ SILC_SERVER_CMD(ban, BAN, SILC_CF_LAG_STRICT | SILC_CF_REG),
+ SILC_SERVER_CMD(detach, DETACH, SILC_CF_LAG_STRICT | SILC_CF_REG),
+ SILC_SERVER_CMD(watch, WATCH, SILC_CF_LAG | SILC_CF_REG),
SILC_SERVER_CMD(silcoper, SILCOPER,
SILC_CF_LAG | SILC_CF_REG | SILC_CF_SILC_OPER),
- SILC_SERVER_CMD(leave, LEAVE, SILC_CF_LAG | SILC_CF_REG),
+ SILC_SERVER_CMD(leave, LEAVE, SILC_CF_LAG_STRICT | SILC_CF_REG),
SILC_SERVER_CMD(users, USERS, SILC_CF_LAG | SILC_CF_REG),
+ SILC_SERVER_CMD(getkey, GETKEY, SILC_CF_LAG | SILC_CF_REG),
+
+ SILC_SERVER_CMD(connect, PRIV_CONNECT,
+ SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
+ SILC_SERVER_CMD(close, PRIV_CLOSE,
+ SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
+ SILC_SERVER_CMD(shutdown, PRIV_SHUTDOWN, SILC_CF_LAG | SILC_CF_REG |
+ SILC_CF_OPER),
{ NULL, 0 },
};
-#define SILC_SERVER_COMMAND_CHECK_ARGC(command, context, min, max) \
-do { \
- unsigned int _argc = silc_argument_get_arg_num(cmd->args); \
- \
- SILC_LOG_DEBUG(("Start")); \
- \
- if (_argc < min) { \
- silc_server_command_send_status_reply(cmd, command, \
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS); \
- silc_server_command_free(cmd); \
- return; \
- } \
- if (_argc > max) { \
- silc_server_command_send_status_reply(cmd, command, \
- SILC_STATUS_ERR_TOO_MANY_PARAMS); \
- silc_server_command_free(cmd); \
- return; \
- } \
+/* Performs several checks to the command. It first checks whether this
+ command was called as pending command callback. If it was then it checks
+ whether error occurred in the command reply where the pending command
+ callback was called.
+
+ It also checks that the requested command includes correct amount
+ of arguments. */
+#define SILC_SERVER_COMMAND_CHECK(command, context, min, max) \
+do { \
+ SilcUInt32 _argc; \
+ \
+ if (silc_server_command_pending_error_check(cmd, context2, command)) { \
+ SILC_LOG_DEBUG(("Error occurred in command reply, command not called")); \
+ silc_server_command_free(cmd); \
+ return; \
+ } \
+ \
+ _argc = silc_argument_get_arg_num(cmd->args); \
+ if (_argc < min) { \
+ SILC_LOG_DEBUG(("Not enough parameters in command")); \
+ silc_server_command_send_status_reply(cmd, command, \
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, \
+ 0); \
+ silc_server_command_free(cmd); \
+ return; \
+ } \
+ if (_argc > max) { \
+ SILC_LOG_DEBUG(("Too many parameters in command")); \
+ silc_server_command_send_status_reply(cmd, command, \
+ SILC_STATUS_ERR_TOO_MANY_PARAMS, \
+ 0); \
+ silc_server_command_free(cmd); \
+ return; \
+ } \
} while(0)
/* Returns TRUE if the connection is registered. Unregistered connections
SilcCommand command)
{
SilcIDListData idata = (SilcIDListData)sock->user_data;
- if (idata->registered)
+
+ if (!idata)
+ return FALSE;
+
+ if (idata->status & SILC_IDLIST_STATUS_REGISTERED)
return TRUE;
silc_server_command_send_status_reply(cmd, command,
- SILC_STATUS_ERR_NOT_REGISTERED);
- silc_server_command_free(cmd);
+ SILC_STATUS_ERR_NOT_REGISTERED, 0);
return FALSE;
}
+/* Internal context to hold data when executed command with timeout. */
+typedef struct {
+ SilcServerCommandContext ctx;
+ SilcServerCommand *cmd;
+} *SilcServerCommandTimeout;
+
+/* Timeout callback to process commands with timeout for client. Client's
+ commands are always executed with timeout. */
+
+SILC_TASK_CALLBACK(silc_server_command_process_timeout)
+{
+ SilcServerCommandTimeout timeout = (SilcServerCommandTimeout)context;
+ SilcClientEntry client = (SilcClientEntry)timeout->ctx->sock->user_data;
+
+ if (!client) {
+ SILC_LOG_DEBUG(("Client entry is invalid"));
+ silc_server_command_free(timeout->ctx);
+ silc_free(timeout);
+ }
+
+ /* Update access time */
+ client->last_command = time(NULL);
+
+ if (!(timeout->cmd->flags & SILC_CF_REG)) {
+ SILC_LOG_DEBUG(("Calling %s command",
+ silc_get_command_name(timeout->cmd->cmd)));
+ timeout->cmd->cb(timeout->ctx, NULL);
+ } else if (silc_server_is_registered(timeout->ctx->server,
+ timeout->ctx->sock,
+ timeout->ctx,
+ timeout->cmd->cmd)) {
+ SILC_LOG_DEBUG(("Calling %s command",
+ silc_get_command_name(timeout->cmd->cmd)));
+ timeout->cmd->cb(timeout->ctx, NULL);
+ } else {
+ SILC_LOG_DEBUG(("Client is not registered"));
+ silc_server_command_free(timeout->ctx);
+ }
+
+ silc_free(timeout);
+}
+
/* Processes received command packet. */
void silc_server_command_process(SilcServer server,
{
SilcServerCommandContext ctx;
SilcServerCommand *cmd;
+ SilcCommand command;
-#if 0
- /* XXX allow commands in but do not execute them more than once per
- two seconds. */
-
- /* Check whether it is allowed for this connection to execute any
- command. */
- if (sock->type == SILC_SOCKET_TYPE_CLIENT) {
- time_t curtime;
- SilcClientEntry client = (SilcClientEntry)sock->user_data;
-
- if (!client)
- return;
-
- /* Allow only one command executed in 2 seconds. */
- curtime = time(NULL);
- if (client->last_command && (curtime - client->last_command) < 2)
- return;
-
- /* Update access time */
- client->last_command = curtime;
- }
-#endif
-
/* Allocate command context. This must be free'd by the
command routine receiving it. */
ctx = silc_server_command_alloc();
ctx->packet = silc_packet_context_dup(packet); /* Save original packet */
/* Parse the command payload in the packet */
- ctx->payload = silc_command_payload_parse(packet->buffer);
+ ctx->payload = silc_command_payload_parse(packet->buffer->data,
+ packet->buffer->len);
if (!ctx->payload) {
SILC_LOG_ERROR(("Bad command payload, packet dropped"));
- silc_buffer_free(packet->buffer);
silc_packet_context_free(packet);
silc_socket_free(ctx->sock);
silc_free(ctx);
return;
}
ctx->args = silc_command_get_args(ctx->payload);
-
- /* Execute command. If this fails the packet is dropped. */
+
+ /* Get the command */
+ command = silc_command_get(ctx->payload);
for (cmd = silc_command_list; cmd->cb; cmd++)
- if (cmd->cmd == silc_command_get(ctx->payload)) {
+ if (cmd->cmd == command)
+ break;
- if (!(cmd->flags & SILC_CF_REG)) {
- cmd->cb(ctx);
- break;
- }
-
- if (silc_server_is_registered(server, sock, ctx, cmd->cmd)) {
- cmd->cb(ctx);
- break;
- }
+ if (!cmd || !cmd->cb) {
+ SILC_LOG_DEBUG(("Unknown command %d", command));
+ silc_server_command_send_status_reply(ctx, command,
+ SILC_STATUS_ERR_UNKNOWN_COMMAND, 0);
+ silc_server_command_free(ctx);
+ return;
+ }
+
+ /* Execute client's commands always with timeout. Normally they are
+ executed with zero (0) timeout but if client is sending command more
+ frequently than once in 2 seconds, then the timeout may be 0 to 2
+ seconds. */
+ if (sock->type == SILC_SOCKET_TYPE_CLIENT) {
+ SilcClientEntry client = (SilcClientEntry)sock->user_data;
+ SilcServerCommandTimeout timeout;
+ int fast;
+
+ if (!client) {
+ SILC_LOG_DEBUG(("Client entry is invalid"));
+ silc_server_command_free(ctx);
}
- if (cmd == NULL) {
- SILC_LOG_ERROR(("Unknown command, packet dropped"));
- silc_server_command_free(ctx);
+ timeout = silc_calloc(1, sizeof(*timeout));
+ timeout->ctx = ctx;
+ timeout->cmd = cmd;
+
+ if (client->last_command && (time(NULL) - client->last_command) < 2) {
+ client->fast_command++;
+ fast = FALSE;
+ } else {
+ if (client->fast_command - 2 <= 0)
+ client->fast_command = 0;
+ else
+ client->fast_command -= 2;
+ fast = TRUE;
+ }
+
+ if (!fast && ((cmd->flags & SILC_CF_LAG_STRICT) ||
+ (client->fast_command > 5 && cmd->flags & SILC_CF_LAG)))
+ silc_schedule_task_add(server->schedule, sock->sock,
+ silc_server_command_process_timeout, timeout,
+ (client->fast_command < 3 ? 0 :
+ 2 - (time(NULL) - client->last_command)),
+ (client->fast_command < 3 ? 200000 : 0),
+ SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
+ else
+ silc_schedule_task_add(server->schedule, sock->sock,
+ silc_server_command_process_timeout, timeout,
+ 0, 1, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
return;
}
+
+ /* Execute for server */
+
+ if (!(cmd->flags & SILC_CF_REG)) {
+ SILC_LOG_DEBUG(("Calling %s command", silc_get_command_name(cmd->cmd)));
+ cmd->cb(ctx, NULL);
+ } else if (silc_server_is_registered(server, sock, ctx, cmd->cmd)) {
+ SILC_LOG_DEBUG(("Calling %s command", silc_get_command_name(cmd->cmd)));
+ cmd->cb(ctx, NULL);
+ } else {
+ SILC_LOG_DEBUG(("Server is not registered"));
+ silc_server_command_free(ctx);
+ }
}
/* Allocate Command Context */
ctx->users));
if (ctx->users < 1) {
if (ctx->payload)
- silc_command_free_payload(ctx->payload);
+ silc_command_payload_free(ctx->payload);
if (ctx->packet)
silc_packet_context_free(ctx->packet);
if (ctx->sock)
return ctx;
}
+/* Timeout for pending command. If reply to pending command never arrives
+ this is called to free resources. */
+
+SILC_TASK_CALLBACK(silc_server_command_pending_timeout)
+{
+ SilcServer server = app_context;
+ SilcServerCommandPending *reply = context;
+ SilcServerCommandReplyContext cmdr;
+ SilcBuffer tmpreply;
+ int i;
+
+ SILC_LOG_DEBUG(("Timeout pending command"));
+
+ /* Allocate temporary and bogus command reply context */
+ cmdr = silc_calloc(1, sizeof(*cmdr));
+ cmdr->server = server;
+ cmdr->ident = reply->ident;
+
+ /* Check for pending commands and mark to be exeucted */
+ cmdr->callbacks =
+ silc_server_command_pending_check(server, reply->reply_cmd,
+ reply->ident, &cmdr->callbacks_count);
+
+ /* Create bogus command reply with an error inside */
+ tmpreply =
+ silc_command_reply_payload_encode_va(reply->reply_cmd ? reply->reply_cmd :
+ SILC_COMMAND_RESERVED,
+ SILC_STATUS_ERR_TIMEDOUT, 0,
+ reply->ident, 0);
+ cmdr->payload = silc_command_payload_parse(tmpreply->data, tmpreply->len);
+ silc_buffer_free(tmpreply);
+
+ /* Call all callbacks. Same as SILC_SERVER_PENDING_EXEC macro. */
+ for (i = 0; i < cmdr->callbacks_count; i++)
+ if (cmdr->callbacks[i].callback)
+ (*cmdr->callbacks[i].callback)(cmdr->callbacks[i].context, cmdr);
+
+ silc_server_command_pending_del(server, reply->reply_cmd, reply->ident);
+ silc_server_command_reply_free(cmdr);
+}
+
/* Add new pending command to be executed when reply to a command has been
received. The `reply_cmd' is the command that will call the `callback'
- with `context' when reply has been received. If `ident' is non-zero
+ with `context' when reply has been received. It can be SILC_COMMAND_NONE
+ to match any command with the `ident'. If `ident' is non-zero
the `callback' will be executed when received reply with command
- identifier `ident'. */
+ identifier `ident'. If there already exists pending command for the
+ specified command, ident, callback and context this function has no
+ effect. */
-void silc_server_command_pending(SilcServer server,
+bool silc_server_command_pending(SilcServer server,
SilcCommand reply_cmd,
- unsigned short ident,
- SilcServerPendingDestructor destructor,
+ SilcUInt16 ident,
SilcCommandCb callback,
void *context)
+{
+ return silc_server_command_pending_timed(server, reply_cmd, ident, callback,
+ context, 0);
+}
+
+/* Same as silc_server_command_pending with specific timeout for pending
+ commands. If the `timeout' is zero default timeout is used. */
+
+bool silc_server_command_pending_timed(SilcServer server,
+ SilcCommand reply_cmd,
+ SilcUInt16 ident,
+ SilcCommandCb callback,
+ void *context,
+ SilcUInt16 timeout)
{
SilcServerCommandPending *reply;
+ /* Check whether identical pending already exists for same command,
+ ident, callback and callback context. If it does then it would be
+ error to register it again. */
+ silc_dlist_start(server->pending_commands);
+ while ((reply = silc_dlist_get(server->pending_commands)) != SILC_LIST_END) {
+ if (reply->reply_cmd == reply_cmd && reply->ident == ident &&
+ reply->callback == callback && reply->context == context)
+ return FALSE;
+ }
+
reply = silc_calloc(1, sizeof(*reply));
reply->reply_cmd = reply_cmd;
reply->ident = ident;
reply->context = context;
reply->callback = callback;
- reply->destructor = destructor;
+ reply->timeout =
+ silc_schedule_task_add(server->schedule, 0,
+ silc_server_command_pending_timeout, reply,
+ timeout ? timeout : 10, 0,
+ SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
silc_dlist_add(server->pending_commands, reply);
+
+ return TRUE;
}
/* Deletes pending command by reply command type. */
void silc_server_command_pending_del(SilcServer server,
SilcCommand reply_cmd,
- unsigned short ident)
+ SilcUInt16 ident)
{
SilcServerCommandPending *r;
silc_dlist_start(server->pending_commands);
while ((r = silc_dlist_get(server->pending_commands)) != SILC_LIST_END) {
- if (r->reply_cmd == reply_cmd && r->ident == ident) {
+ if ((r->reply_cmd == reply_cmd || (r->reply_cmd == SILC_COMMAND_NONE &&
+ r->reply_check))
+ && r->ident == ident) {
silc_dlist_del(server->pending_commands, r);
- break;
+ if (r->timeout)
+ silc_schedule_task_del(server->schedule, r->timeout);
+ silc_free(r);
}
}
}
/* Checks for pending commands and marks callbacks to be called from
the command reply function. Returns TRUE if there were pending command. */
-int silc_server_command_pending_check(SilcServer server,
- SilcServerCommandReplyContext ctx,
- SilcCommand command,
- unsigned short ident)
+SilcServerCommandPendingCallbacks
+silc_server_command_pending_check(SilcServer server,
+ SilcCommand command,
+ SilcUInt16 ident,
+ SilcUInt32 *callbacks_count)
{
SilcServerCommandPending *r;
+ SilcServerCommandPendingCallbacks callbacks = NULL;
+ int i = 0;
silc_dlist_start(server->pending_commands);
while ((r = silc_dlist_get(server->pending_commands)) != SILC_LIST_END) {
- if (r->reply_cmd == command && r->ident == ident) {
- ctx->context = r->context;
- ctx->callback = r->callback;
- ctx->destructor = r->destructor;
- ctx->ident = ident;
- return TRUE;
+ if ((r->reply_cmd == command || r->reply_cmd == SILC_COMMAND_NONE)
+ && r->ident == ident) {
+ callbacks = silc_realloc(callbacks, sizeof(*callbacks) * (i + 1));
+ callbacks[i].context = r->context;
+ callbacks[i].callback = r->callback;
+ r->reply_check = TRUE;
+ i++;
}
}
- return FALSE;
-}
-
-/* Destructor function for pending callbacks. This is called when using
- pending commands to free the context given for the pending command. */
-
-static void silc_server_command_destructor(void *context)
-{
- silc_server_command_free((SilcServerCommandContext)context);
+ *callbacks_count = i;
+ return callbacks;
}
/* Sends simple status message as command reply packet */
static void
silc_server_command_send_status_reply(SilcServerCommandContext cmd,
SilcCommand command,
- SilcCommandStatus status)
+ SilcStatus status,
+ SilcStatus error)
{
SilcBuffer buffer;
SILC_LOG_DEBUG(("Sending command status %d", status));
- buffer = silc_command_reply_payload_encode_va(command, status, 0, 0);
+ buffer =
+ silc_command_reply_payload_encode_va(command, status, error,
+ silc_command_get_ident(cmd->payload),
+ 0);
silc_server_packet_send(cmd->server, cmd->sock,
SILC_PACKET_COMMAND_REPLY, 0,
buffer->data, buffer->len, FALSE);
static void
silc_server_command_send_status_data(SilcServerCommandContext cmd,
SilcCommand command,
- SilcCommandStatus status,
- unsigned int arg_type,
- unsigned char *arg,
- unsigned int arg_len)
+ SilcStatus status,
+ SilcStatus error,
+ SilcUInt32 arg_type,
+ const unsigned char *arg,
+ SilcUInt32 arg_len)
{
SilcBuffer buffer;
SILC_LOG_DEBUG(("Sending command status %d", status));
- buffer = silc_command_reply_payload_encode_va(command, status, 0, 1,
- arg_type, arg, arg_len);
+ buffer =
+ silc_command_reply_payload_encode_va(command, status, 0,
+ silc_command_get_ident(cmd->payload),
+ 1, arg_type, arg, arg_len);
silc_server_packet_send(cmd->server, cmd->sock,
SILC_PACKET_COMMAND_REPLY, 0,
buffer->data, buffer->len, FALSE);
silc_buffer_free(buffer);
}
-/******************************************************************************
+/* This function can be called to check whether in the command reply
+ an error occurred. This function has no effect if this is called
+ when the command function was not called as pending command callback.
+ This returns TRUE if error had occurred. */
- WHOIS Functions
+static bool
+silc_server_command_pending_error_check(SilcServerCommandContext cmd,
+ SilcServerCommandReplyContext cmdr,
+ SilcCommand command)
+{
+ if (!cmd->pending || !cmdr)
+ return FALSE;
-******************************************************************************/
+ if (!silc_command_get_status(cmdr->payload, NULL, NULL)) {
+ SilcBuffer buffer;
+
+ /* Send the same command reply payload */
+ silc_command_set_command(cmdr->payload, silc_command_get(cmd->payload));
+ silc_command_set_ident(cmdr->payload,
+ silc_command_get_ident(cmd->payload));
+ buffer = silc_command_payload_encode_payload(cmdr->payload);
+ silc_server_packet_send(cmd->server, cmd->sock,
+ SILC_PACKET_COMMAND_REPLY, 0,
+ buffer->data, buffer->len, FALSE);
+ silc_buffer_free(buffer);
+ return TRUE;
+ }
-static int
-silc_server_command_whois_parse(SilcServerCommandContext cmd,
- SilcClientID ***client_id,
- unsigned int *client_id_count,
- char **nickname,
- char **server_name,
- int *count,
- SilcCommand command)
-{
- unsigned char *tmp;
- unsigned int len;
- unsigned int argc = silc_argument_get_arg_num(cmd->args);
- int i, k;
+ return FALSE;
+}
- /* If client ID is in the command it must be used instead of nickname */
- tmp = silc_argument_get_arg_type(cmd->args, 3, &len);
- if (!tmp) {
- /* No ID, get the nickname@server string and parse it. */
- tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
- if (tmp) {
- if (strchr(tmp, '@')) {
- len = strcspn(tmp, "@");
- *nickname = silc_calloc(len + 1, sizeof(char));
- memcpy(*nickname, tmp, len);
- *server_name = silc_calloc(strlen(tmp) - len, sizeof(char));
- memcpy(*server_name, tmp + len + 1, strlen(tmp) - len - 1);
- } else {
- *nickname = strdup(tmp);
- }
- } else {
- silc_server_command_send_status_reply(cmd, command,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- return FALSE;
- }
- } else {
- /* Command includes ID, we must use that. Also check whether the command
- has more than one ID set - take them all. */
+/* Server side of command WHOIS. */
- *client_id = silc_calloc(1, sizeof(**client_id));
- (*client_id)[0] = silc_id_payload_parse_id(tmp, len);
- if ((*client_id)[0] == NULL) {
- silc_free(*client_id);
- return FALSE;
- }
- *client_id_count = 1;
-
- /* Take all ID's from the command packet */
- if (argc > 3) {
- for (k = 1, i = 4; i < argc + 1; i++) {
- tmp = silc_argument_get_arg_type(cmd->args, i, &len);
- if (tmp) {
- *client_id = silc_realloc(*client_id, sizeof(**client_id) *
- (*client_id_count + 1));
- (*client_id)[k] = silc_id_payload_parse_id(tmp, len);
- if ((*client_id)[k] == NULL) {
- /* Cleanup all and fail */
- for (i = 0; i < *client_id_count; i++)
- silc_free((*client_id)[i]);
- silc_free(*client_id);
- return FALSE;
- }
- (*client_id_count)++;
- k++;
- }
- }
- }
+SILC_SERVER_CMD_FUNC(whois)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_WHOIS, cmd, 1, 256);
+ silc_server_query_command(cmd->server, SILC_COMMAND_WHOIS, cmd);
+ silc_server_command_free(cmd);
+}
- /* Command includes ID, use that */
- }
+/* Server side of command WHOWAS. */
- /* Get the max count of reply messages allowed */
- tmp = silc_argument_get_arg_type(cmd->args, 2, NULL);
- if (tmp)
- *count = atoi(tmp);
- else
- *count = 0;
+SILC_SERVER_CMD_FUNC(whowas)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_WHOWAS, cmd, 1, 2);
+ silc_server_query_command(cmd->server, SILC_COMMAND_WHOWAS, cmd);
+ silc_server_command_free(cmd);
+}
- return TRUE;
+/* Server side of command IDENTIFY. */
+
+SILC_SERVER_CMD_FUNC(identify)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_IDENTIFY, cmd, 1, 256);
+ silc_server_query_command(cmd->server, SILC_COMMAND_IDENTIFY, cmd);
+ silc_server_command_free(cmd);
}
-static char
-silc_server_command_whois_check(SilcServerCommandContext cmd,
- SilcClientEntry *clients,
- unsigned int clients_count)
+/* Server side of command NICK. Sets nickname for user. Setting
+ nickname causes generation of a new client ID for the client. The
+ new client ID is sent to the client after changing the nickname. */
+
+SILC_SERVER_CMD_FUNC(nick)
{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
SilcServer server = cmd->server;
- int i;
- SilcClientEntry entry;
+ SilcBuffer packet, nidp, oidp = NULL;
+ SilcClientID *new_id;
+ SilcUInt32 nick_len;
+ char *nick;
+ SilcUInt16 ident = silc_command_get_ident(cmd->payload);
+ int nickfail = 0;
- for (i = 0; i < clients_count; i++) {
- entry = clients[i];
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT || !client)
+ goto out;
- if (!entry->nickname || !entry->username) {
- SilcBuffer tmpbuf;
- unsigned short old_ident;
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_NICK, cmd, 1, 1);
- if (!entry->router)
- continue;
-
- old_ident = silc_command_get_ident(cmd->payload);
- silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
- tmpbuf = silc_command_payload_encode_payload(cmd->payload);
+ /* Check nickname */
+ nick = silc_argument_get_arg_type(cmd->args, 1, &nick_len);
+ if (!nick) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_NICK,
+ SILC_STATUS_ERR_BAD_NICKNAME, 0);
+ goto out;
+ }
+ if (nick_len > 128)
+ nick[128] = '\0';
+ if (silc_server_name_bad_chars(nick, nick_len) == TRUE) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_NICK,
+ SILC_STATUS_ERR_BAD_NICKNAME, 0);
+ goto out;
+ }
- /* Send WHOIS command */
- silc_server_packet_send(server, entry->router->connection,
- SILC_PACKET_COMMAND, cmd->packet->flags,
- tmpbuf->data, tmpbuf->len, TRUE);
-
- /* Reprocess this packet after received reply */
- silc_server_command_pending(server, SILC_COMMAND_WHOIS,
- silc_command_get_ident(cmd->payload),
- silc_server_command_destructor,
- silc_server_command_whois,
- silc_server_command_dup(cmd));
- cmd->pending = TRUE;
-
- silc_command_set_ident(cmd->payload, old_ident);
+ /* Check for same nickname */
+ if (!strcmp(client->nickname, nick)) {
+ nidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
+ goto send_reply;
+ }
- silc_buffer_free(tmpbuf);
- return FALSE;
+ /* Create new Client ID */
+ while (!silc_id_create_client_id(cmd->server, cmd->server->id,
+ cmd->server->rng,
+ cmd->server->md5hash, nick,
+ &new_id)) {
+ nickfail++;
+ if (nickfail > 9) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_NICK,
+ SILC_STATUS_ERR_BAD_NICKNAME, 0);
+ goto out;
}
+ snprintf(&nick[strlen(nick) - 1], 1, "%d", nickfail);
}
- return TRUE;
+ /* Send notify about nickname change to our router. We send the new
+ ID and ask to replace it with the old one. If we are router the
+ packet is broadcasted. Send NICK_CHANGE notify. */
+ silc_server_send_notify_nick_change(server, SILC_PRIMARY_ROUTE(server),
+ SILC_BROADCAST(server), client->id,
+ new_id, nick);
+
+ /* Check if anyone is watching the old nickname */
+ if (server->server_type == SILC_ROUTER)
+ silc_server_check_watcher_list(server, client, nick,
+ SILC_NOTIFY_TYPE_NICK_CHANGE);
+
+ oidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
+
+ /* Remove old cache entry */
+ silc_idcache_del_by_context(server->local_list->clients, client);
+
+ silc_free(client->id);
+ client->id = new_id;
+
+ silc_free(client->nickname);
+ client->nickname = strdup(nick);
+
+ /* Update client cache */
+ silc_idcache_add(server->local_list->clients, client->nickname,
+ client->id, (void *)client, 0, NULL);
+
+ nidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
+
+ /* Send NICK_CHANGE notify to the client's channels */
+ silc_server_send_notify_on_channels(server, NULL, client,
+ SILC_NOTIFY_TYPE_NICK_CHANGE, 3,
+ oidp->data, oidp->len,
+ nidp->data, nidp->len,
+ client->nickname,
+ strlen(client->nickname));
+
+ /* Check if anyone is watching the new nickname */
+ if (server->server_type == SILC_ROUTER)
+ silc_server_check_watcher_list(server, client, NULL,
+ SILC_NOTIFY_TYPE_NICK_CHANGE);
+
+ send_reply:
+ /* Send the new Client ID as reply command back to client */
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_NICK,
+ SILC_STATUS_OK, 0, ident, 2,
+ 2, nidp->data, nidp->len,
+ 3, nick, strlen(nick));
+ silc_server_packet_send(cmd->server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
+ 0, packet->data, packet->len, FALSE);
+
+ silc_buffer_free(packet);
+ silc_buffer_free(nidp);
+ if (oidp)
+ silc_buffer_free(oidp);
+
+ out:
+ silc_server_command_free(cmd);
}
+/* Sends the LIST command reply */
+
static void
-silc_server_command_whois_send_reply(SilcServerCommandContext cmd,
- SilcClientEntry *clients,
- unsigned int clients_count)
+silc_server_command_list_send_reply(SilcServerCommandContext cmd,
+ SilcChannelEntry *lch,
+ SilcUInt32 lch_count,
+ SilcChannelEntry *gch,
+ SilcUInt32 gch_count)
{
- SilcServer server = cmd->server;
- char *tmp;
- int i, count = 0, len;
+ int i, k;
SilcBuffer packet, idp;
- SilcClientEntry entry;
- SilcCommandStatus status;
- unsigned short ident = silc_command_get_ident(cmd->payload);
+ SilcChannelEntry entry;
+ SilcStatus status;
+ SilcUInt16 ident = silc_command_get_ident(cmd->payload);
+ char *topic;
+ unsigned char usercount[4];
+ SilcUInt32 users;
+ int valid_lcount = 0, valid_rcount = 0;
+
+ for (i = 0; i < lch_count; i++) {
+ if (lch[i]->mode & SILC_CHANNEL_MODE_SECRET)
+ lch[i] = NULL;
+ else
+ valid_lcount++;
+ }
+ for (i = 0; i < gch_count; i++) {
+ if (gch[i]->mode & SILC_CHANNEL_MODE_SECRET)
+ gch[i] = NULL;
+ else
+ valid_rcount++;
+ }
status = SILC_STATUS_OK;
- if (clients_count > 1)
+ if ((lch_count + gch_count) > 1)
status = SILC_STATUS_LIST_START;
- for (i = 0; i < clients_count; i++) {
- entry = clients[i];
-
- if (count && i - 1 == count)
- break;
+ /* Local list */
+ for (i = 0, k = 0; i < lch_count; i++) {
+ entry = lch[i];
+ if (!entry)
+ continue;
- if (clients_count > 2)
+ if (k >= 1)
status = SILC_STATUS_LIST_ITEM;
-
- if (clients_count > 1 && i == clients_count - 1)
+ if (valid_lcount > 1 && k == valid_lcount - 1 && !valid_rcount)
status = SILC_STATUS_LIST_END;
- /* Sanity check, however these should never fail. However, as
- this sanity check has been added here they have failed. */
- if (!entry->nickname || !entry->username)
+ idp = silc_id_payload_encode(entry->id, SILC_ID_CHANNEL);
+
+ if (entry->mode & SILC_CHANNEL_MODE_PRIVATE) {
+ topic = "*private*";
+ memset(usercount, 0, sizeof(usercount));
+ } else {
+ topic = entry->topic;
+ users = silc_hash_table_count(entry->user_list);
+ SILC_PUT32_MSB(users, usercount);
+ }
+
+ /* Send the reply */
+ packet =
+ silc_command_reply_payload_encode_va(SILC_COMMAND_LIST,
+ status, 0, ident, 4,
+ 2, idp->data, idp->len,
+ 3, entry->channel_name,
+ strlen(entry->channel_name),
+ 4, topic, topic ? strlen(topic) : 0,
+ 5, usercount, 4);
+ silc_server_packet_send(cmd->server, cmd->sock,
+ SILC_PACKET_COMMAND_REPLY, 0, packet->data,
+ packet->len, FALSE);
+ silc_buffer_free(packet);
+ silc_buffer_free(idp);
+ k++;
+ }
+
+ /* Global list */
+ for (i = 0, k = 0; i < gch_count; i++) {
+ entry = gch[i];
+ if (!entry)
continue;
-
- /* Send WHOIS reply */
- idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
- tmp = silc_argument_get_first_arg(cmd->args, NULL);
-
- /* XXX */
- {
- char nh[256], uh[256];
- unsigned char idle[4];
- SilcSocketConnection hsock;
-
- memset(uh, 0, sizeof(uh));
- memset(nh, 0, sizeof(nh));
-
- strncat(nh, entry->nickname, strlen(entry->nickname));
- if (!strchr(entry->nickname, '@')) {
- strncat(nh, "@", 1);
- len = entry->router ? strlen(entry->router->server_name) :
- strlen(server->server_name);
- strncat(nh, entry->router ? entry->router->server_name :
- server->server_name, len);
- }
-
- strncat(uh, entry->username, strlen(entry->username));
- if (!strchr(entry->username, '@')) {
- strncat(uh, "@", 1);
- hsock = (SilcSocketConnection)entry->connection;
- len = strlen(hsock->hostname);
- strncat(uh, hsock->hostname, len);
- }
-
- SILC_PUT32_MSB((time(NULL) - entry->data.last_receive), idle);
-
- packet =
- silc_command_reply_payload_encode_va(SILC_COMMAND_WHOIS,
- status, ident, 5,
- 2, idp->data, idp->len,
- 3, nh, strlen(nh),
- 4, uh, strlen(uh),
- 5, entry->userinfo,
- strlen(entry->userinfo),
- 7, idle, 4);
+
+ if (k >= 1)
+ status = SILC_STATUS_LIST_ITEM;
+ if (valid_rcount > 1 && k == valid_rcount - 1)
+ status = SILC_STATUS_LIST_END;
+
+ idp = silc_id_payload_encode(entry->id, SILC_ID_CHANNEL);
+
+ if (entry->mode & SILC_CHANNEL_MODE_PRIVATE) {
+ topic = "*private*";
+ memset(usercount, 0, sizeof(usercount));
+ } else {
+ topic = entry->topic;
+ users = entry->user_count;
+ SILC_PUT32_MSB(users, usercount);
}
-
- silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
- 0, packet->data, packet->len, FALSE);
-
+
+ /* Send the reply */
+ packet =
+ silc_command_reply_payload_encode_va(SILC_COMMAND_LIST,
+ status, 0, ident, 4,
+ 2, idp->data, idp->len,
+ 3, entry->channel_name,
+ strlen(entry->channel_name),
+ 4, topic, topic ? strlen(topic) : 0,
+ 5, usercount, 4);
+ silc_server_packet_send(cmd->server, cmd->sock,
+ SILC_PACKET_COMMAND_REPLY, 0, packet->data,
+ packet->len, FALSE);
silc_buffer_free(packet);
silc_buffer_free(idp);
+ k++;
}
}
-static int
-silc_server_command_whois_from_client(SilcServerCommandContext cmd)
+/* Server side of LIST command. This lists the channel of the requested
+ server. Secret channels are not listed. */
+
+SILC_SERVER_CMD_FUNC(list)
{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
- char *nick = NULL, *server_name = NULL;
- int count = 0, clients_count = 0;
- SilcClientEntry *clients = NULL, entry;
- SilcClientID **client_id = NULL;
- unsigned int client_id_count = 0;
- int i, ret = 0;
-
- /* Protocol dictates that we must always send the received WHOIS request
- to our router if we are normal server, so let's do it now unless we
- are standalone. We will not send any replies to the client until we
- have received reply from the router. */
- if (server->server_type == SILC_SERVER &&
- !cmd->pending && !server->standalone) {
- SilcBuffer tmpbuf;
- unsigned short old_ident;
+ SilcChannelID *channel_id = NULL;
+ unsigned char *tmp;
+ SilcUInt32 tmp_len;
+ SilcChannelEntry *lchannels = NULL, *gchannels = NULL;
+ SilcUInt32 lch_count = 0, gch_count = 0;
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_LIST, cmd, 0, 1);
+
+ /* If we are normal server, send the command to router, since we
+ want to know all channels in the network. */
+ if (!cmd->pending && server->server_type != SILC_ROUTER &&
+ !server->standalone) {
+ SilcBuffer tmpbuf;
+ SilcUInt16 old_ident;
+
old_ident = silc_command_get_ident(cmd->payload);
- silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
+ silc_command_set_ident(cmd->payload, ++server->cmd_ident);
tmpbuf = silc_command_payload_encode_payload(cmd->payload);
-
- /* Send WHOIS command to our router */
- silc_server_packet_send(server, (SilcSocketConnection)
- server->router->connection,
+ silc_server_packet_send(server, SILC_PRIMARY_ROUTE(server),
SILC_PACKET_COMMAND, cmd->packet->flags,
tmpbuf->data, tmpbuf->len, TRUE);
/* Reprocess this packet after received reply from router */
- silc_server_command_pending(server, SILC_COMMAND_WHOIS,
+ silc_server_command_pending(server, SILC_COMMAND_LIST,
silc_command_get_ident(cmd->payload),
- silc_server_command_destructor,
- silc_server_command_whois,
+ silc_server_command_list,
silc_server_command_dup(cmd));
cmd->pending = TRUE;
-
silc_command_set_ident(cmd->payload, old_ident);
-
silc_buffer_free(tmpbuf);
- ret = -1;
goto out;
}
- /* We are ready to process the command request. Let's search for the
- requested client and send reply to the requesting client. */
-
- /* Parse the whois request */
- if (!silc_server_command_whois_parse(cmd, &client_id, &client_id_count,
- &nick, &server_name, &count,
- SILC_COMMAND_WHOIS))
- return 0;
-
- /* Get all clients matching that ID or nickname from local list */
- if (client_id_count) {
- /* Check all Client ID's received in the command packet */
- for (i = 0; i < client_id_count; i++) {
- entry = silc_idlist_find_client_by_id(server->local_list,
- client_id[i], NULL);
- if (entry) {
- clients = silc_realloc(clients, sizeof(*clients) *
- (clients_count + 1));
- clients[clients_count++] = entry;
- }
+ /* Get Channel ID */
+ tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+ if (tmp) {
+ channel_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
+ if (!channel_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_LIST,
+ SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
+ goto out;
}
- } else {
- clients = silc_idlist_get_clients_by_nickname(server->local_list,
- nick, server_name,
- &clients_count);
- if (!clients)
- clients = silc_idlist_get_clients_by_hash(server->local_list,
- nick, server->md5hash,
- &clients_count);
}
+
+ /* Get the channels from local list */
+ lchannels = silc_idlist_get_channels(server->local_list, channel_id,
+ &lch_count);
- /* Check global list as well */
- if (!clients) {
- if (client_id_count) {
- /* Check all Client ID's received in the command packet */
- for (i = 0; i < client_id_count; i++) {
- entry = silc_idlist_find_client_by_id(server->global_list,
- client_id[i], NULL);
- if (entry) {
- clients = silc_realloc(clients, sizeof(*clients) *
- (clients_count + 1));
- clients[clients_count++] = entry;
- }
- }
- } else {
- clients = silc_idlist_get_clients_by_nickname(server->global_list,
- nick, server_name,
- &clients_count);
- if (!clients)
- clients = silc_idlist_get_clients_by_hash(server->global_list,
- nick, server->md5hash,
- &clients_count);
- }
- }
-
- if (!clients) {
- /* Such client(s) really does not exist in the SILC network. */
- if (!client_id_count) {
- silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
- SILC_STATUS_ERR_NO_SUCH_NICK,
- 3, nick, strlen(nick));
- } else {
- SilcBuffer idp = silc_id_payload_encode(client_id[0], SILC_ID_CLIENT);
- silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
- SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
- 2, idp->data, idp->len);
- silc_buffer_free(idp);
- }
- goto out;
- }
-
- /* Router always finds the client entry if it exists in the SILC network.
- However, it might be incomplete entry and does not include all the
- mandatory fields that WHOIS command reply requires. Check for these and
- make query from the server who owns the client if some fields are
- missing. */
- if (!silc_server_command_whois_check(cmd, clients, clients_count)) {
- ret = -1;
- goto out;
- }
-
- /* Send the command reply to the client */
- silc_server_command_whois_send_reply(cmd, clients, clients_count);
-
- out:
- if (client_id_count) {
- for (i = 0; i < client_id_count; i++)
- silc_free(client_id[i]);
- silc_free(client_id);
- }
- if (clients)
- silc_free(clients);
- if (nick)
- silc_free(nick);
- if (server_name)
- silc_free(server_name);
-
- return ret;
-}
-
-static int
-silc_server_command_whois_from_server(SilcServerCommandContext cmd)
-{
- SilcServer server = cmd->server;
- char *nick = NULL, *server_name = NULL;
- int count = 0, clients_count = 0;
- SilcClientEntry *clients = NULL, entry;
- SilcClientID **client_id = NULL;
- unsigned int client_id_count = 0;
- int i, ret = 0;
-
- /* Parse the whois request */
- if (!silc_server_command_whois_parse(cmd, &client_id, &client_id_count,
- &nick, &server_name, &count,
- SILC_COMMAND_WHOIS))
- return 0;
-
- /* Process the command request. Let's search for the requested client and
- send reply to the requesting server. */
-
- if (client_id_count) {
- /* Check all Client ID's received in the command packet */
- for (i = 0; i < client_id_count; i++) {
- entry = silc_idlist_find_client_by_id(server->local_list,
- client_id[i], NULL);
- if (entry) {
- clients = silc_realloc(clients, sizeof(*clients) *
- (clients_count + 1));
- clients[clients_count++] = entry;
- }
- }
- } else {
- clients = silc_idlist_get_clients_by_nickname(server->local_list,
- nick, server_name,
- &clients_count);
- if (!clients)
- clients = silc_idlist_get_clients_by_hash(server->local_list,
- nick, server->md5hash,
- &clients_count);
- }
-
- /* If we are router we will check our global list as well. */
- if (!clients && server->server_type == SILC_ROUTER) {
- if (client_id_count) {
- /* Check all Client ID's received in the command packet */
- for (i = 0; i < client_id_count; i++) {
- entry = silc_idlist_find_client_by_id(server->global_list,
- client_id[i], NULL);
- if (entry) {
- clients = silc_realloc(clients, sizeof(*clients) *
- (clients_count + 1));
- clients[clients_count++] = entry;
- }
- }
- } else {
- clients = silc_idlist_get_clients_by_nickname(server->global_list,
- nick, server_name,
- &clients_count);
- if (!clients)
- clients = silc_idlist_get_clients_by_hash(server->global_list,
- nick, server->md5hash,
- &clients_count);
- }
- }
-
- if (!clients) {
- /* Such a client really does not exist in the SILC network. */
- if (!client_id_count) {
- silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
- SILC_STATUS_ERR_NO_SUCH_NICK,
- 3, nick, strlen(nick));
- } else {
- SilcBuffer idp = silc_id_payload_encode(client_id[0], SILC_ID_CLIENT);
- silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
- SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
- 2, idp->data, idp->len);
- silc_buffer_free(idp);
- }
- goto out;
- }
+ /* Get the channels from global list */
+ gchannels = silc_idlist_get_channels(server->global_list, channel_id,
+ &gch_count);
- /* Router always finds the client entry if it exists in the SILC network.
- However, it might be incomplete entry and does not include all the
- mandatory fields that WHOIS command reply requires. Check for these and
- make query from the server who owns the client if some fields are
- missing. */
- if (!silc_server_command_whois_check(cmd, clients, clients_count)) {
- ret = -1;
- goto out;
- }
+ /* Send the reply */
+ silc_server_command_list_send_reply(cmd, lchannels, lch_count,
+ gchannels, gch_count);
- /* Send the command reply to the client */
- silc_server_command_whois_send_reply(cmd, clients, clients_count);
+ silc_free(lchannels);
+ silc_free(gchannels);
- out:
- if (client_id_count) {
- for (i = 0; i < client_id_count; i++)
- silc_free(client_id[i]);
- silc_free(client_id);
- }
- if (clients)
- silc_free(clients);
- if (nick)
- silc_free(nick);
- if (server_name)
- silc_free(server_name);
-
- return ret;
-}
-
-/* Server side of command WHOIS. Processes user's query and sends found
- results as command replies back to the client. */
-
-SILC_SERVER_CMD_FUNC(whois)
-{
- SilcServerCommandContext cmd = (SilcServerCommandContext)context;
- int ret = 0;
-
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_WHOIS, cmd, 1, 3328);
-
- if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT)
- ret = silc_server_command_whois_from_client(cmd);
- else if ((cmd->sock->type == SILC_SOCKET_TYPE_SERVER) ||
- (cmd->sock->type == SILC_SOCKET_TYPE_ROUTER))
- ret = silc_server_command_whois_from_server(cmd);
-
- if (!ret)
- silc_server_command_free(cmd);
-}
-
-SILC_SERVER_CMD_FUNC(whowas)
-{
-}
-
-/******************************************************************************
-
- IDENTIFY Functions
-
-******************************************************************************/
-
-/* Checks that all mandatory fields are present. If not then send WHOIS
- request to the server who owns the client. We use WHOIS because we want
- to get as much information as possible at once. */
-
-static char
-silc_server_command_identify_check(SilcServerCommandContext cmd,
- SilcClientEntry *clients,
- unsigned int clients_count)
-{
- SilcServer server = cmd->server;
- int i;
- SilcClientEntry entry;
-
- for (i = 0; i < clients_count; i++) {
- entry = clients[i];
-
- if (!entry->nickname) {
- SilcBuffer tmpbuf;
- unsigned short old_ident;
-
- if (!entry->router)
- continue;
-
- old_ident = silc_command_get_ident(cmd->payload);
- silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
- silc_command_set_command(cmd->payload, SILC_COMMAND_WHOIS);
- tmpbuf = silc_command_payload_encode_payload(cmd->payload);
-
- /* Send WHOIS request. We send WHOIS since we're doing the requesting
- now anyway so make it a good one. */
- silc_server_packet_send(server, entry->router->connection,
- SILC_PACKET_COMMAND, cmd->packet->flags,
- tmpbuf->data, tmpbuf->len, TRUE);
-
- /* Reprocess this packet after received reply */
- silc_server_command_pending(server, SILC_COMMAND_WHOIS,
- silc_command_get_ident(cmd->payload),
- silc_server_command_destructor,
- silc_server_command_identify,
- silc_server_command_dup(cmd));
-
- cmd->pending = TRUE;
-
- /* Put old data back to the Command Payload we just changed */
- silc_command_set_ident(cmd->payload, old_ident);
- silc_command_set_command(cmd->payload, SILC_COMMAND_IDENTIFY);
-
- silc_buffer_free(tmpbuf);
- return FALSE;
- }
- }
-
- return TRUE;
-}
-
-static void
-silc_server_command_identify_send_reply(SilcServerCommandContext cmd,
- SilcClientEntry *clients,
- unsigned int clients_count)
-{
- SilcServer server = cmd->server;
- char *tmp;
- int i, count = 0, len;
- SilcBuffer packet, idp;
- SilcClientEntry entry;
- SilcCommandStatus status;
- unsigned short ident = silc_command_get_ident(cmd->payload);
-
- status = SILC_STATUS_OK;
- if (clients_count > 1)
- status = SILC_STATUS_LIST_START;
-
- for (i = 0; i < clients_count; i++) {
- entry = clients[i];
-
- if (count && i - 1 == count)
- break;
-
- if (clients_count > 2)
- status = SILC_STATUS_LIST_ITEM;
-
- if (clients_count > 1 && i == clients_count - 1)
- status = SILC_STATUS_LIST_END;
-
- /* Send IDENTIFY reply */
- idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
- tmp = silc_argument_get_first_arg(cmd->args, NULL);
-
- /* XXX */
- {
- char nh[256], uh[256];
- SilcSocketConnection hsock;
-
- memset(uh, 0, sizeof(uh));
- memset(nh, 0, sizeof(nh));
-
- strncat(nh, entry->nickname, strlen(entry->nickname));
- if (!strchr(entry->nickname, '@')) {
- strncat(nh, "@", 1);
- len = entry->router ? strlen(entry->router->server_name) :
- strlen(server->server_name);
- strncat(nh, entry->router ? entry->router->server_name :
- server->server_name, len);
- }
-
- if (!entry->username) {
- packet = silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
- SILC_STATUS_OK, ident, 2,
- 2, idp->data, idp->len,
- 3, nh, strlen(nh));
- } else {
- strncat(uh, entry->username, strlen(entry->username));
- if (!strchr(entry->username, '@')) {
- strncat(uh, "@", 1);
- hsock = (SilcSocketConnection)entry->connection;
- len = strlen(hsock->hostname);
- strncat(uh, hsock->hostname, len);
- }
-
- packet = silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
- SILC_STATUS_OK, ident, 3,
- 2, idp->data, idp->len,
- 3, nh, strlen(nh),
- 4, uh, strlen(uh));
- }
-
- silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
- 0, packet->data, packet->len, FALSE);
-
- silc_buffer_free(packet);
- silc_buffer_free(idp);
- }
- }
-}
-
-static int
-silc_server_command_identify_from_client(SilcServerCommandContext cmd)
-{
- SilcServer server = cmd->server;
- char *nick = NULL, *server_name = NULL;
- int count = 0, clients_count = 0;
- SilcClientEntry *clients = NULL, entry;
- SilcClientID **client_id = NULL;
- unsigned int client_id_count = 0;
- int i, ret = 0;
-
- /* Protocol dictates that we must always send the received IDENTIFY request
- to our router if we are normal server, so let's do it now unless we
- are standalone. We will not send any replies to the client until we
- have received reply from the router. */
- if (server->server_type == SILC_SERVER &&
- !cmd->pending && !server->standalone) {
- SilcBuffer tmpbuf;
- unsigned short old_ident;
-
- old_ident = silc_command_get_ident(cmd->payload);
- silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
- tmpbuf = silc_command_payload_encode_payload(cmd->payload);
-
- /* Send IDENTIFY command to our router */
- silc_server_packet_send(server, (SilcSocketConnection)
- server->router->connection,
- SILC_PACKET_COMMAND, cmd->packet->flags,
- tmpbuf->data, tmpbuf->len, TRUE);
-
- /* Reprocess this packet after received reply from router */
- silc_server_command_pending(server, SILC_COMMAND_IDENTIFY,
- silc_command_get_ident(cmd->payload),
- silc_server_command_destructor,
- silc_server_command_identify,
- silc_server_command_dup(cmd));
- cmd->pending = TRUE;
-
- silc_command_set_ident(cmd->payload, old_ident);
-
- silc_buffer_free(tmpbuf);
- ret = -1;
- goto out;
- }
-
- /* We are ready to process the command request. Let's search for the
- requested client and send reply to the requesting client. */
-
- /* Parse the IDENTIFY request */
- if (!silc_server_command_whois_parse(cmd, &client_id, &client_id_count,
- &nick, &server_name, &count,
- SILC_COMMAND_IDENTIFY))
- return 0;
-
- /* Get all clients matching that ID or nickname from local list */
- if (client_id_count) {
- /* Check all Client ID's received in the command packet */
- for (i = 0; i < client_id_count; i++) {
- entry = silc_idlist_find_client_by_id(server->local_list,
- client_id[i], NULL);
- if (entry) {
- clients = silc_realloc(clients, sizeof(*clients) *
- (clients_count + 1));
- clients[clients_count++] = entry;
- }
- }
- } else {
- clients = silc_idlist_get_clients_by_nickname(server->local_list,
- nick, server_name,
- &clients_count);
- if (!clients)
- clients = silc_idlist_get_clients_by_hash(server->local_list,
- nick, server->md5hash,
- &clients_count);
- }
-
- /* Check global list as well */
- if (!clients) {
- if (client_id_count) {
- /* Check all Client ID's received in the command packet */
- for (i = 0; i < client_id_count; i++) {
- entry = silc_idlist_find_client_by_id(server->global_list,
- client_id[i], NULL);
- if (entry) {
- clients = silc_realloc(clients, sizeof(*clients) *
- (clients_count + 1));
- clients[clients_count++] = entry;
- }
- }
- } else {
- clients = silc_idlist_get_clients_by_nickname(server->global_list,
- nick, server_name,
- &clients_count);
- if (!clients)
- clients = silc_idlist_get_clients_by_hash(server->global_list,
- nick, server->md5hash,
- &clients_count);
- }
- }
-
- if (!clients) {
- /* Such a client really does not exist in the SILC network. */
- if (!client_id_count) {
- silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
- SILC_STATUS_ERR_NO_SUCH_NICK,
- 3, nick, strlen(nick));
- } else {
- SilcBuffer idp = silc_id_payload_encode(client_id[0], SILC_ID_CLIENT);
- silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
- SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
- 2, idp->data, idp->len);
- silc_buffer_free(idp);
- }
- goto out;
- }
-
- /* Check that all mandatory fields are present and request those data
- from the server who owns the client if necessary. */
- if (!silc_server_command_identify_check(cmd, clients, clients_count)) {
- ret = -1;
- goto out;
- }
-
- /* Send the command reply to the client */
- silc_server_command_identify_send_reply(cmd, clients, clients_count);
-
- out:
- if (client_id_count) {
- for (i = 0; i < client_id_count; i++)
- silc_free(client_id[i]);
- silc_free(client_id);
- }
- if (clients)
- silc_free(clients);
- if (nick)
- silc_free(nick);
- if (server_name)
- silc_free(server_name);
-
- return ret;
-}
-
-static int
-silc_server_command_identify_from_server(SilcServerCommandContext cmd)
-{
- SilcServer server = cmd->server;
- char *nick = NULL, *server_name = NULL;
- int count = 0, clients_count = 0;
- SilcClientEntry *clients = NULL, entry;
- SilcClientID **client_id = NULL;
- unsigned int client_id_count = 0;
- int i, ret = 0;
-
- /* Parse the IDENTIFY request */
- if (!silc_server_command_whois_parse(cmd, &client_id, &client_id_count,
- &nick, &server_name, &count,
- SILC_COMMAND_IDENTIFY))
- return 0;
-
- /* Process the command request. Let's search for the requested client and
- send reply to the requesting server. */
-
- if (client_id_count) {
- /* Check all Client ID's received in the command packet */
- for (i = 0; i < client_id_count; i++) {
- entry = silc_idlist_find_client_by_id(server->local_list,
- client_id[i], NULL);
- if (entry) {
- clients = silc_realloc(clients, sizeof(*clients) *
- (clients_count + 1));
- clients[clients_count++] = entry;
- }
- }
- } else {
- clients = silc_idlist_get_clients_by_nickname(server->local_list,
- nick, server_name,
- &clients_count);
- if (!clients)
- clients = silc_idlist_get_clients_by_hash(server->local_list,
- nick, server->md5hash,
- &clients_count);
- }
-
- /* If we are router we will check our global list as well. */
- if (!clients && server->server_type == SILC_ROUTER) {
- if (client_id_count) {
- /* Check all Client ID's received in the command packet */
- for (i = 0; i < client_id_count; i++) {
- entry = silc_idlist_find_client_by_id(server->global_list,
- client_id[i], NULL);
- if (entry) {
- clients = silc_realloc(clients, sizeof(*clients) *
- (clients_count + 1));
- clients[clients_count++] = entry;
- }
- }
- } else {
- clients = silc_idlist_get_clients_by_nickname(server->global_list,
- nick, server_name,
- &clients_count);
- if (!clients)
- clients = silc_idlist_get_clients_by_hash(server->global_list,
- nick, server->md5hash,
- &clients_count);
- }
- }
-
- if (!clients) {
- /* Such a client really does not exist in the SILC network. */
- if (!client_id_count) {
- silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
- SILC_STATUS_ERR_NO_SUCH_NICK,
- 3, nick, strlen(nick));
- } else {
- SilcBuffer idp = silc_id_payload_encode(client_id[0], SILC_ID_CLIENT);
- silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
- SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
- 2, idp->data, idp->len);
- silc_buffer_free(idp);
- }
- goto out;
- }
-
- /* Check that all mandatory fields are present and request those data
- from the server who owns the client if necessary. */
- if (!silc_server_command_identify_check(cmd, clients, clients_count)) {
- ret = -1;
- goto out;
- }
-
- /* Send the command reply */
- silc_server_command_identify_send_reply(cmd, clients, clients_count);
-
- out:
- if (client_id_count) {
- for (i = 0; i < client_id_count; i++)
- silc_free(client_id[i]);
- silc_free(client_id);
- }
- if (clients)
- silc_free(clients);
- if (nick)
- silc_free(nick);
- if (server_name)
- silc_free(server_name);
-
- return ret;
-}
-
-SILC_SERVER_CMD_FUNC(identify)
-{
- SilcServerCommandContext cmd = (SilcServerCommandContext)context;
- int ret = 0;
-
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_IDENTIFY, cmd, 1, 3328);
-
- if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT)
- ret = silc_server_command_identify_from_client(cmd);
- else if ((cmd->sock->type == SILC_SOCKET_TYPE_SERVER) |
- (cmd->sock->type == SILC_SOCKET_TYPE_ROUTER))
- ret = silc_server_command_identify_from_server(cmd);
-
- if (!ret)
- silc_server_command_free(cmd);
-}
-
-/* Checks string for bad characters and returns TRUE if they are found. */
-
-static int silc_server_command_bad_chars(char *nick)
-{
- if (strchr(nick, '\\')) return TRUE;
- if (strchr(nick, '\"')) return TRUE;
- if (strchr(nick, '´')) return TRUE;
- if (strchr(nick, '`')) return TRUE;
- if (strchr(nick, '\'')) return TRUE;
- if (strchr(nick, '*')) return TRUE;
- if (strchr(nick, '/')) return TRUE;
- if (strchr(nick, '@')) return TRUE;
-
- return FALSE;
-}
-
-/* Server side of command NICK. Sets nickname for user. Setting
- nickname causes generation of a new client ID for the client. The
- new client ID is sent to the client after changing the nickname. */
-
-SILC_SERVER_CMD_FUNC(nick)
-{
- SilcServerCommandContext cmd = (SilcServerCommandContext)context;
- SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
- SilcServer server = cmd->server;
- SilcBuffer packet, nidp, oidp;
- SilcClientID *new_id;
- char *nick;
-
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_NICK, cmd, 1, 1);
-
- /* Check nickname */
- nick = silc_argument_get_arg_type(cmd->args, 1, NULL);
- if (silc_server_command_bad_chars(nick) == TRUE) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_NICK,
- SILC_STATUS_ERR_BAD_NICKNAME);
- goto out;
- }
-
- /* Create new Client ID */
- silc_id_create_client_id(cmd->server->id, cmd->server->rng,
- cmd->server->md5hash, nick,
- &new_id);
-
- /* Send notify about nickname change to our router. We send the new
- ID and ask to replace it with the old one. If we are router the
- packet is broadcasted. Send NICK_CHANGE notify. */
- if (!server->standalone)
- silc_server_send_notify_nick_change(server, server->router->connection,
- server->server_type == SILC_SERVER ?
- FALSE : TRUE, client->id,
- new_id, SILC_ID_CLIENT_LEN);
-
- /* Remove old cache entry */
- silc_idcache_del_by_id(server->local_list->clients, SILC_ID_CLIENT,
- client->id);
-
- oidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
-
- /* Free old ID */
- if (client->id) {
- memset(client->id, 0, SILC_ID_CLIENT_LEN);
- silc_free(client->id);
- }
-
- /* Save the nickname as this client is our local client */
- if (client->nickname)
- silc_free(client->nickname);
-
- client->nickname = strdup(nick);
- client->id = new_id;
-
- /* Update client cache */
- silc_idcache_add(server->local_list->clients, client->nickname,
- SILC_ID_CLIENT, client->id, (void *)client, TRUE);
-
- nidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
-
- /* Send NICK_CHANGE notify to the client's channels */
- silc_server_send_notify_on_channels(server, client,
- SILC_NOTIFY_TYPE_NICK_CHANGE, 2,
- oidp->data, oidp->len,
- nidp->data, nidp->len);
-
- /* Send the new Client ID as reply command back to client */
- packet = silc_command_reply_payload_encode_va(SILC_COMMAND_NICK,
- SILC_STATUS_OK, 0, 1,
- 2, nidp->data, nidp->len);
- silc_server_packet_send(cmd->server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
- 0, packet->data, packet->len, FALSE);
-
- silc_buffer_free(packet);
- silc_buffer_free(nidp);
- silc_buffer_free(oidp);
-
out:
silc_server_command_free(cmd);
}
-SILC_SERVER_CMD_FUNC(list)
-{
-}
-
/* Server side of TOPIC command. Sets topic for channel and/or returns
current topic to client. */
SilcChannelClientEntry chl;
SilcBuffer packet, idp;
unsigned char *tmp;
- unsigned int argc, tmp_len;
+ SilcUInt32 argc, tmp_len;
+ SilcUInt16 ident = silc_command_get_ident(cmd->payload);
+
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT || !client)
+ goto out;
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_TOPIC, cmd, 1, 2);
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_TOPIC, cmd, 1, 2);
argc = silc_argument_get_arg_num(cmd->args);
tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
if (!tmp) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
+ SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
goto out;
}
- channel_id = silc_id_payload_parse_id(tmp, tmp_len);
+ channel_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
if (!channel_id) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
+ SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
goto out;
}
channel_id, NULL);
if (!channel) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
- SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL,
+ 0);
goto out;
}
}
tmp = silc_argument_get_arg_type(cmd->args, 2, NULL);
if (!tmp) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
goto out;
}
if (strlen(tmp) > 256) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
goto out;
}
- /* See whether has rights to change topic */
- silc_list_start(channel->user_list);
- while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END)
- if (chl->client == client)
- break;
+ /* See whether the client is on channel and has rights to change topic */
+ if (!silc_server_client_on_channel(client, channel, &chl)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
+ SILC_STATUS_ERR_NOT_ON_CHANNEL,
+ 0);
+ goto out;
+ }
- if (chl->mode == SILC_CHANNEL_UMODE_NONE) {
- if (channel->mode & SILC_CHANNEL_MODE_TOPIC) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
- SILC_STATUS_ERR_NO_CHANNEL_PRIV);
- goto out;
- }
+ if (channel->mode & SILC_CHANNEL_MODE_TOPIC &&
+ !(chl->mode & SILC_CHANNEL_UMODE_CHANOP) &&
+ !(chl->mode & SILC_CHANNEL_UMODE_CHANFO)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
+ SILC_STATUS_ERR_NO_CHANNEL_PRIV,
+ 0);
+ goto out;
}
- /* Set the topic for channel */
- if (channel->topic)
+ if (!channel->topic || strcmp(channel->topic, tmp)) {
+ /* Set the topic for channel */
silc_free(channel->topic);
- channel->topic = strdup(tmp);
-
- /* Send TOPIC_SET notify type to the network */
- if (!server->standalone)
- silc_server_send_notify_topic_set(server, server->router->connection,
- server->server_type == SILC_ROUTER ?
- TRUE : FALSE, channel, client->id,
- SILC_ID_CLIENT_LEN, channel->topic);
-
- idp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
-
- /* Send notify about topic change to all clients on the channel */
- silc_server_send_notify_to_channel(server, NULL, channel, TRUE,
- SILC_NOTIFY_TYPE_TOPIC_SET, 2,
- idp->data, idp->len,
- channel->topic, strlen(channel->topic));
- silc_buffer_free(idp);
+ channel->topic = strdup(tmp);
+
+ /* Send TOPIC_SET notify type to the network */
+ silc_server_send_notify_topic_set(server, SILC_PRIMARY_ROUTE(server),
+ SILC_BROADCAST(server), channel,
+ client->id, SILC_ID_CLIENT,
+ channel->topic);
+
+ /* Send notify about topic change to all clients on the channel */
+ idp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
+ silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
+ SILC_NOTIFY_TYPE_TOPIC_SET, 2,
+ idp->data, idp->len,
+ channel->topic,
+ strlen(channel->topic));
+ silc_buffer_free(idp);
+ }
}
/* Send the topic to client as reply packet */
idp = silc_id_payload_encode(channel_id, SILC_ID_CHANNEL);
- if (channel->topic)
- packet = silc_command_reply_payload_encode_va(SILC_COMMAND_TOPIC,
- SILC_STATUS_OK, 0, 2,
- 2, idp->data, idp->len,
- 3, channel->topic,
- strlen(channel->topic));
- else
- packet = silc_command_reply_payload_encode_va(SILC_COMMAND_TOPIC,
- SILC_STATUS_OK, 0, 1,
- 2, idp->data, idp->len);
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_TOPIC,
+ SILC_STATUS_OK, 0, ident, 2,
+ 2, idp->data, idp->len,
+ 3, channel->topic,
+ channel->topic ?
+ strlen(channel->topic) : 0);
silc_server_packet_send(cmd->server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
0, packet->data, packet->len, FALSE);
silc_server_command_free(cmd);
}
-/* Server side of INVITE command. Invites some client to join some channel. */
+/* Server side of INVITE command. Invites some client to join some channel.
+ This command is also used to manage the invite list of the channel. */
SILC_SERVER_CMD_FUNC(invite)
{
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
SilcSocketConnection sock = cmd->sock, dest_sock;
+ SilcChannelClientEntry chl;
SilcClientEntry sender, dest;
- SilcClientID *dest_id;
+ SilcClientID *dest_id = NULL;
SilcChannelEntry channel;
- SilcChannelID *channel_id;
- SilcBuffer sidp;
+ SilcChannelID *channel_id = NULL;
+ SilcIDListData idata;
+ SilcArgumentPayload args;
+ SilcHashTableList htl;
+ SilcBuffer packet, list, tmp2;
unsigned char *tmp;
- unsigned int len;
-
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_INVITE, cmd, 1, 2);
+ SilcUInt32 len, type;
+ SilcUInt16 argc = 0, ident = silc_command_get_ident(cmd->payload);
- /* Get destination ID */
- tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
- if (!tmp) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
- SILC_STATUS_ERR_NO_CLIENT_ID);
- goto out;
- }
- dest_id = silc_id_payload_parse_id(tmp, len);
- if (!dest_id) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
- SILC_STATUS_ERR_NO_CLIENT_ID);
- goto out;
- }
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_INVITE, cmd, 1, 4);
/* Get Channel ID */
- tmp = silc_argument_get_arg_type(cmd->args, 2, &len);
+ tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
if (!tmp) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
+ SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
goto out;
}
- channel_id = silc_id_payload_parse_id(tmp, len);
+ channel_id = silc_id_payload_parse_id(tmp, len, NULL);
if (!channel_id) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
+ SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
goto out;
}
- /* Check whether the channel exists */
+ /* Get the channel entry */
channel = silc_idlist_find_channel_by_id(server->local_list,
channel_id, NULL);
if (!channel) {
channel_id, NULL);
if (!channel) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
- SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL,
+ 0);
goto out;
}
}
/* Check whether the sender of this command is on the channel. */
sender = (SilcClientEntry)sock->user_data;
- if (!silc_server_client_on_channel(sender, channel)) {
+ if (!sender || !silc_server_client_on_channel(sender, channel, &chl)) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
- SILC_STATUS_ERR_NOT_ON_CHANNEL);
+ SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
goto out;
}
/* Check whether the channel is invite-only channel. If yes then the
sender of this command must be at least channel operator. */
- if (channel->mode & SILC_CHANNEL_MODE_INVITE) {
- SilcChannelClientEntry chl;
+ if (channel->mode & SILC_CHANNEL_MODE_INVITE &&
+ !(chl->mode & SILC_CHANNEL_UMODE_CHANOP) &&
+ !(chl->mode & SILC_CHANNEL_UMODE_CHANFO)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
+ SILC_STATUS_ERR_NO_CHANNEL_PRIV,
+ 0);
+ goto out;
+ }
+
+ /* Get destination client ID */
+ tmp = silc_argument_get_arg_type(cmd->args, 2, &len);
+ if (tmp) {
+ bool resolve;
+
+ dest_id = silc_id_payload_parse_id(tmp, len, NULL);
+ if (!dest_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
+ SILC_STATUS_ERR_NO_CLIENT_ID, 0);
+ goto out;
+ }
+
+ /* Get the client entry */
+ dest = silc_server_query_client(server, dest_id, FALSE, &resolve);
+ if (!dest) {
+ if (server->server_type != SILC_SERVER || !resolve || cmd->pending) {
+ silc_server_command_send_status_reply(
+ cmd, SILC_COMMAND_INVITE,
+ SILC_STATUS_ERR_NO_SUCH_CLIENT_ID, 0);
+ goto out;
+ }
+
+ /* The client info is being resolved. Reprocess this packet after
+ receiving the reply to the query. */
+ silc_server_command_pending(server, SILC_COMMAND_WHOIS,
+ server->cmd_ident,
+ silc_server_command_invite,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+ silc_free(channel_id);
+ silc_free(dest_id);
+ goto out;
+ }
- silc_list_start(channel->user_list);
- while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END)
- if (chl->client == sender) {
- if (chl->mode == SILC_CHANNEL_UMODE_NONE) {
+ /* Check whether the requested client is already on the channel. */
+ if (silc_server_client_on_channel(dest, channel, NULL)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
+ SILC_STATUS_ERR_USER_ON_CHANNEL,
+ 0);
+ goto out;
+ }
+
+ /* Get route to the client */
+ dest_sock = silc_server_get_client_route(server, NULL, 0, dest_id,
+ &idata, NULL);
+ if (!dest_sock) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
+ SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
+ 0);
+ goto out;
+ }
+
+ /* Add the client to the invite list */
+
+ /* Allocate hash table for invite list if it doesn't exist yet */
+ if (!channel->invite_list)
+ channel->invite_list =
+ silc_hash_table_alloc(0, silc_hash_ptr,
+ NULL, NULL, NULL,
+ silc_server_inviteban_destruct, channel, TRUE);
+
+ /* Check if the ID is in the list already */
+ silc_hash_table_list(channel->invite_list, &htl);
+ while (silc_hash_table_get(&htl, (void **)&type, (void **)&tmp2)) {
+ if (type == 3 && !memcmp(tmp2->data, tmp, len)) {
+ tmp = NULL;
+ break;
+ }
+ }
+ silc_hash_table_list_reset(&htl);
+
+ /* Add new Client ID to invite list */
+ if (tmp) {
+ list = silc_buffer_alloc_size(len);
+ silc_buffer_put(list, tmp, len);
+ silc_hash_table_add(channel->invite_list, (void *)3, list);
+ }
+
+ if (!(dest->mode & SILC_UMODE_BLOCK_INVITE)) {
+ /* Send notify to the client that is invited to the channel */
+ SilcBuffer idp, idp2;
+ idp = silc_id_payload_encode(channel_id, SILC_ID_CHANNEL);
+ idp2 = silc_id_payload_encode(sender->id, SILC_ID_CLIENT);
+ silc_server_send_notify_dest(server, dest_sock, FALSE, dest_id,
+ SILC_ID_CLIENT,
+ SILC_NOTIFY_TYPE_INVITE, 3,
+ idp->data, idp->len,
+ channel->channel_name,
+ strlen(channel->channel_name),
+ idp2->data, idp2->len);
+ silc_buffer_free(idp);
+ silc_buffer_free(idp2);
+ }
+ }
+
+ /* Get the invite information */
+ tmp = silc_argument_get_arg_type(cmd->args, 4, &len);
+ if (tmp && len > 2) {
+ /* Parse the arguments to see they are constructed correctly */
+ SILC_GET16_MSB(argc, tmp);
+ args = silc_argument_payload_parse(tmp + 2, len - 2, argc);
+ if (!args) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
+ goto out;
+ }
+
+ /* Get the type of action */
+ tmp = silc_argument_get_arg_type(cmd->args, 3, &len);
+ if (tmp && len == 1) {
+ if (tmp[0] == 0x00) {
+ /* Allocate hash table for invite list if it doesn't exist yet */
+ if (!channel->invite_list)
+ channel->invite_list =
+ silc_hash_table_alloc(0, silc_hash_ptr,
+ NULL, NULL, NULL,
+ silc_server_inviteban_destruct, channel,
+ TRUE);
+
+ /* Check for resource limit */
+ if (silc_hash_table_count(channel->invite_list) > 64) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
- SILC_STATUS_ERR_NO_CHANNEL_PRIV);
+ SILC_STATUS_ERR_RESOURCE_LIMIT,
+ 0);
goto out;
}
- break;
}
- }
- /* Find the connection data for the destination. If it is local we will
- send it directly otherwise we will send it to router for routing. */
- dest = silc_idlist_find_client_by_id(server->local_list, dest_id, NULL);
- if (dest)
- dest_sock = (SilcSocketConnection)dest->connection;
- else
- dest_sock = silc_server_route_get(server, dest_id, SILC_ID_CLIENT);
+ /* Now add or delete the information. */
+ silc_server_inviteban_process(server, channel->invite_list,
+ (SilcUInt8)tmp[0], args);
+ }
+ silc_argument_payload_free(args);
+ }
- /* Check whether the requested client is already on the channel. */
- /* XXX if we are normal server we don't know about global clients on
- the channel thus we must request it (USERS command), check from
- local cache as well. */
- if (silc_server_client_on_channel(dest, channel)) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
- SILC_STATUS_ERR_USER_ON_CHANNEL);
- goto out;
+ /* Encode invite list */
+ list = NULL;
+ if (channel->invite_list && silc_hash_table_count(channel->invite_list)) {
+ list = silc_buffer_alloc_size(2);
+ silc_buffer_format(list,
+ SILC_STR_UI_SHORT(silc_hash_table_count(
+ channel->invite_list)),
+ SILC_STR_END);
+ silc_hash_table_list(channel->invite_list, &htl);
+ while (silc_hash_table_get(&htl, (void **)&type, (void **)&tmp2)) {
+ if (type == 1)
+ list = silc_argument_payload_encode_one(list, (char *)tmp2,
+ strlen((char *)tmp2), type);
+ else
+ list = silc_argument_payload_encode_one(list, tmp2->data, tmp2->len,
+ type);
+ }
+ silc_hash_table_list_reset(&htl);
}
- sidp = silc_id_payload_encode(sender->id, SILC_ID_CLIENT);
+ /* Send notify to the primary router */
+ silc_server_send_notify_invite(
+ server, SILC_PRIMARY_ROUTE(server),
+ SILC_BROADCAST(server), channel, sender->id,
+ silc_argument_get_arg_type(cmd->args, 3, NULL),
+ list);
- /* Send notify to the client that is invited to the channel */
- silc_server_send_notify_dest(server, dest_sock, FALSE, dest_id,
- SILC_ID_CLIENT,
- SILC_NOTIFY_TYPE_INVITE, 2,
- sidp->data, sidp->len, tmp, len);
+ /* Send invite list back only if the list was modified, or now arguments
+ was given. */
+ type = 0;
+ argc = silc_argument_get_arg_num(cmd->args);
+ if (argc == 1)
+ type = 1;
+ if (silc_argument_get_arg_type(cmd->args, 3, &len))
+ type = 1;
/* Send command reply */
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
- SILC_STATUS_OK);
-
- silc_buffer_free(sidp);
+ tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_INVITE,
+ SILC_STATUS_OK, 0, ident, 2,
+ 2, tmp, len,
+ 3, type && list ?
+ list->data : NULL,
+ type && list ? list->len : 0);
+ silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
+ packet->data, packet->len, FALSE);
+ silc_buffer_free(packet);
+ silc_buffer_free(list);
out:
+ silc_free(dest_id);
+ silc_free(channel_id);
silc_server_command_free(cmd);
}
typedef struct {
- SilcServer server;
SilcSocketConnection sock;
char *signoff;
} *QuitInternal;
SILC_TASK_CALLBACK(silc_server_command_quit_cb)
{
+ SilcServer server = app_context;
QuitInternal q = (QuitInternal)context;
/* Free all client specific data, such as client entry and entires
on channels this client may be on. */
- silc_server_free_client_data(q->server, q->sock, q->sock->user_data,
- q->signoff);
+ silc_server_free_client_data(server, q->sock, q->sock->user_data,
+ TRUE, q->signoff);
q->sock->user_data = NULL;
/* Close the connection on our side */
- silc_server_close_connection(q->server, q->sock);
+ silc_server_close_connection(server, q->sock);
+ silc_socket_free(q->sock);
silc_free(q->signoff);
silc_free(q);
}
SilcSocketConnection sock = cmd->sock;
QuitInternal q;
unsigned char *tmp = NULL;
- unsigned int len = 0;
+ SilcUInt32 len = 0;
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_QUIT, cmd, 0, 1);
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_QUIT, cmd, 0, 1);
if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
goto out;
- /* Get destination ID */
+ /* Get message */
tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
if (len > 128)
tmp = NULL;
q = silc_calloc(1, sizeof(*q));
- q->server = server;
- q->sock = sock;
+ q->sock = silc_socket_dup(sock);
q->signoff = tmp ? strdup(tmp) : NULL;
/* We quit the connection with little timeout */
- silc_task_register(server->timeout_queue, sock->sock,
- silc_server_command_quit_cb, (void *)q,
- 0, 200000, SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
+ silc_schedule_task_add(server->schedule, sock->sock,
+ silc_server_command_quit_cb, (void *)q,
+ 0, 200000, SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
out:
silc_server_command_free(cmd);
}
+/* Server side of command KILL. This command is used by router operator
+ to remove an client from the SILC Network temporarily. */
+
SILC_SERVER_CMD_FUNC(kill)
{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ SilcClientEntry remote_client;
+ SilcClientID *client_id = NULL;
+ unsigned char *tmp, *comment, *auth;
+ SilcUInt32 tmp_len, tmp_len2, auth_len;
+
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_KILL, cmd, 1, 3);
+
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT || !client)
+ goto out;
+
+ /* Get authentication payload if present */
+ auth = silc_argument_get_arg_type(cmd->args, 3, &auth_len);
+
+ if (!auth) {
+ /* Router operator killing */
+
+ /* KILL command works only on router */
+ if (server->server_type != SILC_ROUTER) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+ SILC_STATUS_ERR_NO_ROUTER_PRIV, 0);
+ goto out;
+ }
+
+ /* Check whether client has the permissions. */
+ if (!(client->mode & SILC_UMODE_ROUTER_OPERATOR)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+ SILC_STATUS_ERR_NO_ROUTER_PRIV, 0);
+ goto out;
+ }
+ }
+
+ /* Get the client ID */
+ tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+ if (!tmp) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
+ goto out;
+ }
+ client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
+ if (!client_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+ SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
+ 0);
+ goto out;
+ }
+
+ /* Get the client entry */
+ remote_client = silc_idlist_find_client_by_id(server->local_list,
+ client_id, TRUE, NULL);
+ if (!remote_client) {
+ remote_client = silc_idlist_find_client_by_id(server->global_list,
+ client_id, TRUE, NULL);
+ if (!remote_client) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+ SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
+ 0);
+ goto out;
+ }
+ }
+
+ /* Get comment */
+ comment = silc_argument_get_arg_type(cmd->args, 2, &tmp_len2);
+ if (comment && tmp_len2 > 128) {
+ tmp_len2 = 128;
+ comment[127] = '\0';
+ }
+
+ /* If authentication data is provided then verify that killing is
+ actually allowed */
+ if (auth && auth_len) {
+ SilcSocketConnection sock;
+
+ if (!SILC_IS_LOCAL(remote_client) || !remote_client->data.public_key) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+ SILC_STATUS_ERR_OPERATION_ALLOWED,
+ 0);
+ goto out;
+ }
+
+ /* Verify the signature */
+ if (!silc_auth_verify_data(auth, auth_len, SILC_AUTH_PUBLIC_KEY,
+ remote_client->data.public_key, 0,
+ server->sha1hash, remote_client->id,
+ SILC_ID_CLIENT)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+ SILC_STATUS_ERR_AUTH_FAILED,
+ 0);
+ goto out;
+ }
+
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+ SILC_STATUS_OK, 0);
+
+ /* Do normal signoff for the destination client */
+ sock = remote_client->connection;
+ silc_server_remove_from_channels(server, NULL, remote_client,
+ TRUE, (char *)"Killed", TRUE, TRUE);
+ silc_server_free_client_data(server, NULL, remote_client, TRUE,
+ comment ? comment :
+ (unsigned char *)"Killed");
+ if (sock)
+ silc_server_close_connection(server, sock);
+ } else {
+ /* Router operator killing */
+
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+ SILC_STATUS_OK, 0);
+
+ /* Check if anyone is watching this nickname */
+ if (server->server_type == SILC_ROUTER)
+ silc_server_check_watcher_list(server, client, NULL,
+ SILC_NOTIFY_TYPE_KILLED);
+
+ /* Now do the killing */
+ silc_server_kill_client(server, remote_client, comment, client->id,
+ SILC_ID_CLIENT);
+ }
+
+ out:
+ silc_free(client_id);
+ silc_server_command_free(cmd);
}
/* Server side of command INFO. This sends information about us to
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
SilcBuffer packet, idp;
- char info_string[256], *dest_server;
+ unsigned char *tmp;
+ SilcUInt32 tmp_len;
+ char *dest_server, *server_info = NULL, *server_name;
+ SilcUInt16 ident = silc_command_get_ident(cmd->payload);
+ SilcServerEntry entry = NULL;
+ SilcServerID *server_id = NULL;
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_INFO, cmd, 1, 1);
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_INFO, cmd, 0, 2);
/* Get server name */
dest_server = silc_argument_get_arg_type(cmd->args, 1, NULL);
- if (!dest_server) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
- SILC_STATUS_ERR_NO_SUCH_SERVER);
- goto out;
+
+ /* Get Server ID */
+ tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+ if (tmp) {
+ server_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
+ if (!server_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
+ SILC_STATUS_ERR_NO_SERVER_ID, 0);
+ goto out;
+ }
}
- if (!strncasecmp(dest_server, server->server_name, strlen(dest_server))) {
+ if (server_id) {
+ /* Check whether we have this server cached */
+ entry = silc_idlist_find_server_by_id(server->local_list,
+ server_id, TRUE, NULL);
+ if (!entry) {
+ entry = silc_idlist_find_server_by_id(server->global_list,
+ server_id, TRUE, NULL);
+ if (!entry && server->server_type != SILC_SERVER) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
+ SILC_STATUS_ERR_NO_SUCH_SERVER,
+ 0);
+ goto out;
+ }
+ }
+ }
+
+ /* Some buggy servers has sent request to router about themselves. */
+ if (server->server_type != SILC_SERVER && cmd->sock->user_data == entry)
+ goto out;
+
+ if ((!dest_server && !server_id && !entry) || (entry &&
+ entry == server->id_entry) ||
+ (dest_server && !cmd->pending &&
+ !strncasecmp(dest_server, server->server_name, strlen(dest_server)))) {
/* Send our reply */
+ char info_string[256];
+
memset(info_string, 0, sizeof(info_string));
snprintf(info_string, sizeof(info_string),
"location: %s server: %s admin: %s <%s>",
- server->config->admin_info->location,
- server->config->admin_info->server_type,
- server->config->admin_info->admin_name,
- server->config->admin_info->admin_email);
-
- idp = silc_id_payload_encode(server->id, SILC_ID_SERVER);
-
- packet = silc_command_reply_payload_encode_va(SILC_COMMAND_INFO,
- SILC_STATUS_OK, 0, 2,
- 2, idp->data, idp->len,
- 3, info_string,
- strlen(info_string));
- silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
- packet->data, packet->len, FALSE);
-
- silc_buffer_free(packet);
- silc_buffer_free(idp);
+ server->config->server_info->location,
+ server->config->server_info->server_type,
+ server->config->server_info->admin,
+ server->config->server_info->email);
+
+ server_info = info_string;
+ entry = server->id_entry;
} else {
- /* Send this command to the requested server */
+ /* Check whether we have this server cached */
+ if (!entry && dest_server) {
+ entry = silc_idlist_find_server_by_name(server->global_list,
+ dest_server, TRUE, NULL);
+ if (!entry) {
+ entry = silc_idlist_find_server_by_name(server->local_list,
+ dest_server, TRUE, NULL);
+ }
+ }
+
+ if (!cmd->pending &&
+ server->server_type != SILC_SERVER && entry && !entry->server_info) {
+ /* Send to the server */
+ SilcBuffer tmpbuf;
+ SilcUInt16 old_ident;
+
+ old_ident = silc_command_get_ident(cmd->payload);
+ silc_command_set_ident(cmd->payload, ++server->cmd_ident);
+ tmpbuf = silc_command_payload_encode_payload(cmd->payload);
- if (server->server_type == SILC_SERVER && !server->standalone) {
+ silc_server_packet_send(server, entry->connection,
+ SILC_PACKET_COMMAND, cmd->packet->flags,
+ tmpbuf->data, tmpbuf->len, TRUE);
+ /* Reprocess this packet after received reply from router */
+ silc_server_command_pending(server, SILC_COMMAND_INFO,
+ silc_command_get_ident(cmd->payload),
+ silc_server_command_info,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+ silc_command_set_ident(cmd->payload, old_ident);
+ silc_buffer_free(tmpbuf);
+ goto out;
}
- if (server->server_type == SILC_ROUTER) {
+ if (!entry && !cmd->pending && !server->standalone) {
+ /* Send to the primary router */
+ SilcBuffer tmpbuf;
+ SilcUInt16 old_ident;
+
+ old_ident = silc_command_get_ident(cmd->payload);
+ silc_command_set_ident(cmd->payload, ++server->cmd_ident);
+ tmpbuf = silc_command_payload_encode_payload(cmd->payload);
+
+ silc_server_packet_send(server, SILC_PRIMARY_ROUTE(server),
+ SILC_PACKET_COMMAND, cmd->packet->flags,
+ tmpbuf->data, tmpbuf->len, TRUE);
+
+ /* Reprocess this packet after received reply from router */
+ silc_server_command_pending(server, SILC_COMMAND_INFO,
+ silc_command_get_ident(cmd->payload),
+ silc_server_command_info,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+ silc_command_set_ident(cmd->payload, old_ident);
+ silc_buffer_free(tmpbuf);
+ goto out;
+ }
+ }
+
+ silc_free(server_id);
+
+ if (!entry) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
+ SILC_STATUS_ERR_NO_SUCH_SERVER, 0);
+ goto out;
+ }
+
+ idp = silc_id_payload_encode(entry->id, SILC_ID_SERVER);
+ if (!server_info)
+ server_info = entry->server_info;
+ server_name = entry->server_name;
+
+ /* Send the reply */
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_INFO,
+ SILC_STATUS_OK, 0, ident, 3,
+ 2, idp->data, idp->len,
+ 3, server_name,
+ strlen(server_name),
+ 4, server_info,
+ server_info ?
+ strlen(server_info) : 0);
+ silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
+ packet->data, packet->len, FALSE);
+
+ silc_buffer_free(packet);
+ silc_buffer_free(idp);
+
+ out:
+ silc_server_command_free(cmd);
+}
+
+/* Server side of command PING. This just replies to the ping. */
+
+SILC_SERVER_CMD_FUNC(ping)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcUInt32 tmp_len;
+ unsigned char *tmp;
+ SilcServerID *server_id = NULL;
+
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_PING, cmd, 1, 1);
+
+ /* Get Server ID */
+ tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+ if (!tmp) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
+ SILC_STATUS_ERR_NO_SERVER_ID, 0);
+ goto out;
+ }
+ server_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
+ if (!server_id)
+ goto out;
- }
+ if (SILC_ID_SERVER_COMPARE(server_id, server->id)) {
+ /* Send our reply */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
+ SILC_STATUS_OK, 0);
+ } else {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
+ SILC_STATUS_ERR_NO_SUCH_SERVER, 0);
+ goto out;
}
-
+
out:
+ silc_free(server_id);
silc_server_command_free(cmd);
}
-/* Server side of command PING. This just replies to the ping. */
+/* Server side of command STATS. */
-SILC_SERVER_CMD_FUNC(ping)
+SILC_SERVER_CMD_FUNC(stats)
{
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
- SilcServerID *id;
- unsigned int len;
+ SilcServerID *server_id;
unsigned char *tmp;
+ SilcUInt32 tmp_len;
+ SilcBuffer packet, stats;
+ SilcUInt16 ident = silc_command_get_ident(cmd->payload);
+ SilcUInt32 uptime;
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_INFO, cmd, 1, 2);
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_STATS, cmd, 1, 1);
/* Get Server ID */
- tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
+ tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
if (!tmp) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
- SILC_STATUS_ERR_NO_SERVER_ID);
+ SILC_STATUS_ERR_NO_SERVER_ID, 0);
goto out;
}
- id = silc_id_str2id(tmp, len, SILC_ID_SERVER);
- if (!id)
+ server_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
+ if (!server_id)
goto out;
- if (!SILC_ID_SERVER_COMPARE(id, server->id)) {
- /* Send our reply */
+ /* The ID must be ours */
+ if (!SILC_ID_SERVER_COMPARE(server->id, server_id)) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
- SILC_STATUS_OK);
- } else {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
- SILC_STATUS_ERR_NO_SUCH_SERVER);
+ SILC_STATUS_ERR_NO_SUCH_SERVER, 0);
+ silc_free(server_id);
goto out;
}
+ silc_free(server_id);
+
+ /* If we are router then just send everything we got. If we are normal
+ server then we'll send this to our router to get all the latest
+ statistical information. */
+ if (!cmd->pending && server->server_type != SILC_ROUTER &&
+ !server->standalone) {
+ /* Send request to our router */
+ SilcBuffer idp = silc_id_payload_encode(server->router->id,
+ SILC_ID_SERVER);
+ packet = silc_command_payload_encode_va(SILC_COMMAND_STATS,
+ ++server->cmd_ident, 1,
+ 1, idp->data, idp->len);
+ silc_server_packet_send(server, SILC_PRIMARY_ROUTE(server),
+ SILC_PACKET_COMMAND, 0, packet->data,
+ packet->len, FALSE);
- silc_free(id);
+ /* Reprocess this packet after received reply from router */
+ silc_server_command_pending(server, SILC_COMMAND_STATS,
+ server->cmd_ident,
+ silc_server_command_stats,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+ silc_buffer_free(packet);
+ silc_buffer_free(idp);
+ goto out;
+ }
+
+ /* Send our reply to sender */
+ uptime = time(NULL) - server->starttime;
+
+ stats = silc_buffer_alloc_size(60);
+ silc_buffer_format(stats,
+ SILC_STR_UI_INT(server->starttime),
+ SILC_STR_UI_INT(uptime),
+ SILC_STR_UI_INT(server->stat.my_clients),
+ SILC_STR_UI_INT(server->stat.my_channels),
+ SILC_STR_UI_INT(server->stat.my_server_ops),
+ SILC_STR_UI_INT(server->stat.my_router_ops),
+ SILC_STR_UI_INT(server->stat.cell_clients),
+ SILC_STR_UI_INT(server->stat.cell_channels),
+ SILC_STR_UI_INT(server->stat.cell_servers),
+ SILC_STR_UI_INT(server->stat.clients),
+ SILC_STR_UI_INT(server->stat.channels),
+ SILC_STR_UI_INT(server->stat.servers),
+ SILC_STR_UI_INT(server->stat.routers),
+ SILC_STR_UI_INT(server->stat.server_ops),
+ SILC_STR_UI_INT(server->stat.router_ops),
+ SILC_STR_END);
+
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_STATS,
+ SILC_STATUS_OK, 0, ident, 2,
+ 2, tmp, tmp_len,
+ 3, stats->data, stats->len);
+ silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
+ 0, packet->data, packet->len, FALSE);
+ silc_buffer_free(packet);
+ silc_buffer_free(stats);
out:
silc_server_command_free(cmd);
SilcServerCommandContext cmd,
SilcChannelEntry channel,
SilcClientID *client_id,
- int created,
- unsigned int umode)
+ bool created,
+ bool create_key,
+ SilcUInt32 umode,
+ const unsigned char *auth,
+ SilcUInt32 auth_len)
{
SilcSocketConnection sock = cmd->sock;
unsigned char *tmp;
- unsigned int tmp_len, user_count;
+ SilcUInt32 tmp_len, user_count;
unsigned char *passphrase = NULL, mode[4], tmp2[4], tmp3[4];
SilcClientEntry client;
SilcChannelClientEntry chl;
- SilcBuffer reply, chidp, clidp, keyp, user_list, mode_list;
- unsigned short ident = silc_command_get_ident(cmd->payload);
+ SilcBuffer reply, chidp, clidp, keyp = NULL;
+ SilcBuffer user_list, mode_list, invite_list, ban_list;
+ SilcUInt16 ident = silc_command_get_ident(cmd->payload);
+ char check[512], check2[512];
+ bool founder = FALSE;
+ bool resolve;
+ SilcBuffer fkey = NULL;
+ const char *cipher;
- SILC_LOG_DEBUG(("Start"));
+ SILC_LOG_DEBUG(("Joining client to channel"));
if (!channel)
return;
- /* Get passphrase */
- tmp = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
- if (tmp) {
- passphrase = silc_calloc(tmp_len, sizeof(*passphrase));
- memcpy(passphrase, tmp, tmp_len);
+ /* Get the client entry */
+ if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
+ client = (SilcClientEntry)sock->user_data;
+ if (!client)
+ return;
+ } else {
+ client = silc_server_query_client(server, client_id, FALSE,
+ &resolve);
+ if (!client) {
+ if (!resolve || cmd->pending) {
+ silc_server_command_send_status_reply(
+ cmd, SILC_COMMAND_JOIN,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
+ goto out;
+ }
+
+ /* The client info is being resolved. Reprocess this packet after
+ receiving the reply to the query. */
+ silc_server_command_pending(server, SILC_COMMAND_WHOIS,
+ server->cmd_ident,
+ silc_server_command_join,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+ goto out;
+ }
+
+ if (auth && auth_len && !client->data.public_key) {
+ if (cmd->pending == 2)
+ goto out;
+
+ /* We must retrieve the detached client's public key by sending
+ GETKEY command. Reprocess this packet after receiving the key */
+ clidp = silc_id_payload_encode(client_id, SILC_ID_CLIENT);
+ silc_server_send_command(server, cmd->sock,
+ SILC_COMMAND_GETKEY, ++server->cmd_ident,
+ 1, 1, clidp->data, clidp->len);
+ silc_buffer_free(clidp);
+ silc_server_command_pending(server, SILC_COMMAND_GETKEY,
+ server->cmd_ident,
+ silc_server_command_join,
+ silc_server_command_dup(cmd));
+ cmd->pending = 2;
+ goto out;
+ }
+
+ cmd->pending = FALSE;
}
-
+
/*
- * Check channel modes
+ * Check founder auth payload if provided. If client can gain founder
+ * privileges it can override various conditions on joining the channel,
+ * and can have directly the founder mode set on the channel.
*/
+ if (auth && auth_len && channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
+ SilcIDListData idata = (SilcIDListData)client;
+ SilcChannelClientEntry chl2;
+ SilcHashTableList htl;
+
+ if (channel->founder_key && idata->public_key &&
+ silc_pkcs_public_key_compare(channel->founder_key,
+ idata->public_key)) {
+ /* Check whether the client is to become founder */
+ if (silc_auth_verify_data(auth, auth_len, SILC_AUTH_PUBLIC_KEY,
+ channel->founder_key, 0, server->sha1hash,
+ client->id, SILC_ID_CLIENT)) {
+
+ /* There cannot be anyone else as founder on the channel now. This
+ client is definitely the founder due to this authentication */
+ silc_hash_table_list(channel->user_list, &htl);
+ while (silc_hash_table_get(&htl, NULL, (void *)&chl2))
+ if (chl2->mode & SILC_CHANNEL_UMODE_CHANFO) {
+ chl2->mode &= ~SILC_CHANNEL_UMODE_CHANFO;
+ silc_server_force_cumode_change(server, NULL, channel, chl2,
+ chl2->mode);
+ break;
+ }
+ silc_hash_table_list_reset(&htl);
- /* Check invite list if channel is invite-only channel */
- if (channel->mode & SILC_CHANNEL_MODE_INVITE) {
- if (channel->mode & SILC_CHANNEL_MODE_INVITE_LIST) {
- /* Invite list is specified. Check whether client is invited in the
- list. If not, then check whether it has been invited otherwise. */
-
- } else {
- /* XXX client must be invited to be able to join the channel */
+ umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
+ founder = TRUE;
+ }
}
}
- /* Check ban list if set */
- if (channel->mode & SILC_CHANNEL_MODE_BAN) {
+ /*
+ * Check channel modes
+ */
- }
+ if (!umode) {
+ memset(check, 0, sizeof(check));
+ memset(check2, 0, sizeof(check2));
+ silc_strncat(check, sizeof(check),
+ client->nickname, strlen(client->nickname));
+ silc_strncat(check, sizeof(check), "!", 1);
+ silc_strncat(check, sizeof(check),
+ client->username, strlen(client->username));
+ if (!strchr(client->username, '@')) {
+ silc_strncat(check, sizeof(check), "@", 1);
+ silc_strncat(check, sizeof(check),
+ cmd->sock->hostname, strlen(cmd->sock->hostname));
+ }
- /* Check the channel passphrase if set. */
- if (channel->mode & SILC_CHANNEL_MODE_PASSPHRASE) {
- if (!passphrase || memcmp(channel->mode_data.passphrase, passphrase,
- strlen(channel->mode_data.passphrase))) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
- SILC_STATUS_ERR_BAD_PASSWORD);
- goto out;
+ silc_strncat(check2, sizeof(check2),
+ client->nickname, strlen(client->nickname));
+ if (!strchr(client->nickname, '@')) {
+ silc_strncat(check2, sizeof(check2), "@", 1);
+ silc_strncat(check2, sizeof(check2),
+ server->server_name, strlen(server->server_name));
+ }
+ silc_strncat(check2, sizeof(check2), "!", 1);
+ silc_strncat(check2, sizeof(check2),
+ client->username, strlen(client->username));
+ if (!strchr(client->username, '@')) {
+ silc_strncat(check2, sizeof(check2), "@", 1);
+ silc_strncat(check2, sizeof(check2),
+ cmd->sock->hostname, strlen(cmd->sock->hostname));
+ }
+
+ /* Check invite list if channel is invite-only channel */
+ if (channel->mode & SILC_CHANNEL_MODE_INVITE) {
+ if (!channel->invite_list ||
+ !silc_hash_table_count(channel->invite_list) ||
+ (!silc_server_inviteban_match(server, channel->invite_list,
+ 3, client->id) &&
+ !silc_server_inviteban_match(server, channel->invite_list,
+ 2, client->data.public_key) &&
+ !silc_server_inviteban_match(server, channel->invite_list,
+ 1, check) &&
+ !silc_server_inviteban_match(server, channel->invite_list,
+ 1, check2))) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
+ SILC_STATUS_ERR_NOT_INVITED, 0);
+ goto out;
+ }
+ }
+
+ /* Check ban list if it exists. If the client's nickname, server,
+ username and/or hostname is in the ban list the access to the
+ channel is denied. */
+ if (channel->ban_list && silc_hash_table_count(channel->ban_list)) {
+ if (silc_server_inviteban_match(server, channel->ban_list,
+ 3, client->id) ||
+ silc_server_inviteban_match(server, channel->ban_list,
+ 2, client->data.public_key) ||
+ silc_server_inviteban_match(server, channel->ban_list,
+ 1, check) ||
+ silc_server_inviteban_match(server, channel->ban_list,
+ 1, check2)) {
+ silc_server_command_send_status_reply(
+ cmd, SILC_COMMAND_JOIN,
+ SILC_STATUS_ERR_BANNED_FROM_CHANNEL, 0);
+ goto out;
+ }
+ }
+
+ /* Check user count limit if set. */
+ if (channel->mode & SILC_CHANNEL_MODE_ULIMIT) {
+ if (silc_hash_table_count(channel->user_list) + 1 >
+ channel->user_limit) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
+ SILC_STATUS_ERR_CHANNEL_IS_FULL,
+ 0);
+ goto out;
+ }
}
}
- /* Check user count limit if set. */
- if (channel->mode & SILC_CHANNEL_MODE_ULIMIT) {
- if (silc_list_count(channel->user_list) + 1 >
- channel->mode_data.user_limit) {
+ /* Check the channel passphrase if set. */
+ if (channel->mode & SILC_CHANNEL_MODE_PASSPHRASE) {
+ /* Get passphrase */
+ tmp = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
+ if (tmp)
+ passphrase = silc_memdup(tmp, tmp_len);
+
+ if (!passphrase || !channel->passphrase ||
+ memcmp(passphrase, channel->passphrase, strlen(channel->passphrase))) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
- SILC_STATUS_ERR_CHANNEL_IS_FULL);
+ SILC_STATUS_ERR_BAD_PASSWORD, 0);
goto out;
}
}
* Client is allowed to join to the channel. Make it happen.
*/
- /* Get the client entry */
- if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
- client = (SilcClientEntry)sock->user_data;
- } else {
- client = silc_idlist_find_client_by_id(server->local_list, client_id,
- NULL);
- if (!client) {
- /* XXX actually this is useless since router finds always cell's
- local clients from its local lists. */
- client = silc_idlist_find_client_by_id(server->global_list, client_id,
- NULL);
- if (!client)
- goto out;
- }
- }
-
/* Check whether the client already is on the channel */
- if (silc_server_client_on_channel(client, channel)) {
+ if (silc_server_client_on_channel(client, channel, NULL)) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
- SILC_STATUS_ERR_USER_ON_CHANNEL);
+ SILC_STATUS_ERR_USER_ON_CHANNEL, 0);
goto out;
}
/* Generate new channel key as protocol dictates */
- if ((!created && silc_list_count(channel->user_list) > 0) ||
- !channel->channel_key)
- silc_server_create_channel_key(server, channel, 0);
+ if (create_key) {
+ if (!silc_server_create_channel_key(server, channel, 0))
+ goto out;
- /* Send the channel key. This is broadcasted to the channel but is not
- sent to the client who is joining to the channel. */
- silc_server_send_channel_key(server, NULL, channel,
- server->server_type == SILC_ROUTER ?
- FALSE : !server->standalone);
+ /* Send the channel key. This is broadcasted to the channel but is not
+ sent to the client who is joining to the channel. */
+ if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY))
+ silc_server_send_channel_key(server, NULL, channel,
+ server->server_type == SILC_ROUTER ?
+ FALSE : !server->standalone);
+ }
/* Join the client to the channel by adding it to channel's user list.
Add also the channel to client entry's channels list for fast cross-
chl->mode = umode;
chl->client = client;
chl->channel = channel;
- silc_list_add(channel->user_list, chl);
- silc_list_add(client->channels, chl);
+ silc_hash_table_add(channel->user_list, client, chl);
+ silc_hash_table_add(client->channels, channel, chl);
+ channel->user_count++;
+ channel->disabled = FALSE;
/* Get users on the channel */
silc_server_get_users_on_channel(server, channel, &user_list, &mode_list,
SILC_PUT32_MSB(channel->mode, mode);
SILC_PUT32_MSB(created, tmp2);
SILC_PUT32_MSB(user_count, tmp3);
- tmp = silc_id_id2str(channel->id, SILC_ID_CHANNEL);
- keyp = silc_channel_key_payload_encode(SILC_ID_CHANNEL_LEN, tmp,
- strlen(channel->channel_key->
- cipher->name),
- channel->channel_key->cipher->name,
- channel->key_len / 8, channel->key);
- silc_free(tmp);
- if (!channel->topic) {
- reply =
- silc_command_reply_payload_encode_va(SILC_COMMAND_JOIN,
- SILC_STATUS_OK, ident, 9,
- 2, channel->channel_name,
- strlen(channel->channel_name),
- 3, chidp->data, chidp->len,
- 4, clidp->data, clidp->len,
- 5, mode, 4,
- 6, tmp2, 4,
- 7, keyp->data, keyp->len,
- 12, tmp3, 4,
- 13, user_list->data, user_list->len,
- 14, mode_list->data,
- mode_list->len);
- } else {
- reply =
- silc_command_reply_payload_encode_va(SILC_COMMAND_JOIN,
- SILC_STATUS_OK, ident, 10,
- 2, channel->channel_name,
- strlen(channel->channel_name),
- 3, chidp->data, chidp->len,
- 4, clidp->data, clidp->len,
- 5, mode, 4,
- 6, tmp2, 4,
- 7, keyp->data, keyp->len,
- 10, channel->topic,
- strlen(channel->topic),
- 12, tmp3, 4,
- 13, user_list->data, user_list->len,
- 14, mode_list->data,
- mode_list->len);
+
+ if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
+ tmp = silc_id_id2str(channel->id, SILC_ID_CHANNEL);
+ cipher = silc_cipher_get_name(channel->channel_key);
+ keyp = silc_channel_key_payload_encode(silc_id_get_len(channel->id,
+ SILC_ID_CHANNEL),
+ tmp,
+ strlen(cipher), cipher,
+ channel->key_len / 8, channel->key);
+ silc_free(tmp);
}
+ if (channel->founder_key)
+ fkey = silc_pkcs_public_key_payload_encode(channel->founder_key);
+
+ /* Encode invite list */
+ invite_list = NULL;
+ if (channel->invite_list && silc_hash_table_count(channel->invite_list)) {
+ SilcHashTableList htl;
+
+ invite_list = silc_buffer_alloc_size(2);
+ silc_buffer_format(invite_list,
+ SILC_STR_UI_SHORT(silc_hash_table_count(
+ channel->invite_list)),
+ SILC_STR_END);
+
+ silc_hash_table_list(channel->invite_list, &htl);
+ while (silc_hash_table_get(&htl, (void **)&tmp_len, (void **)&reply)) {
+ if (tmp_len == 1)
+ invite_list = silc_argument_payload_encode_one(invite_list,
+ (char *)reply,
+ strlen((char *)reply),
+ tmp_len);
+ else
+ invite_list = silc_argument_payload_encode_one(invite_list,
+ reply->data,
+ reply->len, tmp_len);
+ }
+ silc_hash_table_list_reset(&htl);
+ }
+
+ /* Encode ban list */
+ ban_list = NULL;
+ if (channel->ban_list && silc_hash_table_count(channel->ban_list)) {
+ SilcHashTableList htl;
+
+ ban_list = silc_buffer_alloc_size(2);
+ silc_buffer_format(ban_list,
+ SILC_STR_UI_SHORT(silc_hash_table_count(
+ channel->ban_list)),
+ SILC_STR_END);
+
+ silc_hash_table_list(channel->ban_list, &htl);
+ while (silc_hash_table_get(&htl, (void **)&tmp_len, (void **)&reply)) {
+ if (tmp_len == 1)
+ ban_list = silc_argument_payload_encode_one(ban_list,
+ (char *)reply,
+ strlen((char *)reply),
+ tmp_len);
+ else
+ ban_list = silc_argument_payload_encode_one(ban_list,
+ reply->data,
+ reply->len, tmp_len);
+ }
+ silc_hash_table_list_reset(&htl);
+ }
+
+ reply =
+ silc_command_reply_payload_encode_va(SILC_COMMAND_JOIN,
+ SILC_STATUS_OK, 0, ident, 14,
+ 2, channel->channel_name,
+ strlen(channel->channel_name),
+ 3, chidp->data, chidp->len,
+ 4, clidp->data, clidp->len,
+ 5, mode, 4,
+ 6, tmp2, 4,
+ 7, keyp ? keyp->data : NULL,
+ keyp ? keyp->len : 0,
+ 8, ban_list ? ban_list->data : NULL,
+ ban_list ? ban_list->len : 0,
+ 9, invite_list ? invite_list->data :
+ NULL,
+ invite_list ? invite_list->len : 0,
+ 10, channel->topic,
+ channel->topic ?
+ strlen(channel->topic) : 0,
+ 11, silc_hmac_get_name(channel->hmac),
+ strlen(silc_hmac_get_name(channel->
+ hmac)),
+ 12, tmp3, 4,
+ 13, user_list->data, user_list->len,
+ 14, mode_list->data,
+ mode_list->len,
+ 15, fkey ? fkey->data : NULL,
+ fkey ? fkey->len : 0);
+
/* Send command reply */
silc_server_packet_send(server, sock, SILC_PACKET_COMMAND_REPLY, 0,
reply->data, reply->len, FALSE);
- if (!cmd->pending) {
- /* Send JOIN notify to locally connected clients on the channel */
- silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
- SILC_NOTIFY_TYPE_JOIN, 2,
- clidp->data, clidp->len,
- chidp->data, chidp->len);
+ /* Send JOIN notify to locally connected clients on the channel. If
+ we are normal server then router will send or have sent JOIN notify
+ already. However since we've added the client already to our channel
+ we'll ignore it (in packet_receive.c) so we must send it here. If
+ we are router then this will send it to local clients and local
+ servers. */
+ SILC_LOG_DEBUG(("Send JOIN notify to channel"));
+ silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
+ SILC_NOTIFY_TYPE_JOIN, 2,
+ clidp->data, clidp->len,
+ chidp->data, chidp->len);
+
+ /* Update statistics */
+ server->stat.my_chanclients++;
+ if (server->server_type == SILC_ROUTER) {
+ server->stat.cell_chanclients++;
+ server->stat.chanclients++;
+ }
+ if (!cmd->pending) {
/* Send JOIN notify packet to our primary router */
- if (!server->standalone)
- silc_server_send_notify_join(server, server->router->connection,
- server->server_type == SILC_ROUTER ?
- TRUE : FALSE, channel, client->id,
- SILC_ID_CLIENT_LEN);
+ silc_server_send_notify_join(server, SILC_PRIMARY_ROUTE(server),
+ SILC_BROADCAST(server), channel, client->id);
+
+ if (keyp)
+ /* Distribute the channel key to all backup routers. */
+ silc_server_backup_send(server, NULL, SILC_PACKET_CHANNEL_KEY, 0,
+ keyp->data, keyp->len, FALSE, TRUE);
+
+ /* If client became founder by providing correct founder auth data
+ notify the mode change to the channel. */
+ if (founder) {
+ SILC_PUT32_MSB(chl->mode, mode);
+ SILC_LOG_DEBUG(("Send CUMODE_CHANGE notify to channel"));
+ silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
+ SILC_NOTIFY_TYPE_CUMODE_CHANGE, 4,
+ clidp->data, clidp->len,
+ mode, 4, clidp->data, clidp->len,
+ fkey ? fkey->data : NULL,
+ fkey ? fkey->len : 0);
+ }
}
+ /* Set CUMODE notify type to network */
+ if (founder)
+ silc_server_send_notify_cumode(server, SILC_PRIMARY_ROUTE(server),
+ SILC_BROADCAST(server), channel,
+ chl->mode, client->id, SILC_ID_CLIENT,
+ client->id, channel->founder_key);
+
silc_buffer_free(reply);
silc_buffer_free(clidp);
silc_buffer_free(chidp);
silc_buffer_free(keyp);
silc_buffer_free(user_list);
silc_buffer_free(mode_list);
+ silc_buffer_free(fkey);
+ silc_buffer_free(invite_list);
+ silc_buffer_free(ban_list);
out:
- if (passphrase)
- silc_free(passphrase);
+ silc_free(passphrase);
}
/* Server side of command JOIN. Joins client into requested channel. If
{
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
- int tmp_len;
+ unsigned char *auth;
+ SilcUInt32 tmp_len, auth_len;
char *tmp, *channel_name = NULL, *cipher, *hmac;
SilcChannelEntry channel;
- unsigned int umode = 0;
- int created = FALSE;
+ SilcUInt32 umode = 0;
+ bool created = FALSE, create_key = TRUE;
SilcClientID *client_id;
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_JOIN, cmd, 1, 4);
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_JOIN, cmd, 2, 6);
/* Get channel name */
tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
if (!tmp) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
goto out;
}
channel_name = tmp;
- if (silc_server_command_bad_chars(channel_name) == TRUE) {
+ if (tmp_len > 256)
+ channel_name[255] = '\0';
+
+ if (silc_server_name_bad_chars(channel_name, tmp_len) == TRUE) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
- SILC_STATUS_ERR_BAD_CHANNEL);
- silc_free(channel_name);
+ SILC_STATUS_ERR_BAD_CHANNEL, 0);
goto out;
}
tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
if (!tmp) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
goto out;
}
- client_id = silc_id_payload_parse_id(tmp, tmp_len);
+ client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
if (!client_id) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
goto out;
}
- /* Get cipher and hmac name */
+ /* Get cipher, hmac name and auth payload */
cipher = silc_argument_get_arg_type(cmd->args, 4, NULL);
hmac = silc_argument_get_arg_type(cmd->args, 5, NULL);
+ auth = silc_argument_get_arg_type(cmd->args, 6, &auth_len);
/* See if the channel exists */
channel = silc_idlist_find_channel_by_name(server->local_list,
channel_name, NULL);
if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
- /* If this is coming from client the Client ID in the command packet must
- be same as the client's ID. */
- if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
- SilcClientEntry entry = (SilcClientEntry)cmd->sock->user_data;
- if (SILC_ID_CLIENT_COMPARE(entry->id, client_id)) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- goto out;
- }
+ SilcClientEntry entry = (SilcClientEntry)cmd->sock->user_data;
+ if (!entry) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
+ goto out;
}
- if (!channel) {
- /* Channel not found */
+ silc_free(client_id);
+ client_id = silc_id_dup(entry->id, SILC_ID_CLIENT);
+
+ if (!channel ||
+ (channel->disabled && server->server_type != SILC_ROUTER)) {
+ /* Channel not found or not valid */
/* If we are standalone server we don't have a router, we just create
- the channel by ourselves. */
+ the channel by ourselves (unless it existed). */
if (server->standalone) {
- channel = silc_server_create_new_channel(server, server->id, cipher,
- hmac, channel_name, TRUE);
- umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
- created = TRUE;
-
+ if (!channel) {
+ channel = silc_server_create_new_channel(server, server->id, cipher,
+ hmac, channel_name, TRUE);
+ if (!channel) {
+ silc_server_command_send_status_reply(
+ cmd, SILC_COMMAND_JOIN,
+ SILC_STATUS_ERR_UNKNOWN_ALGORITHM,
+ 0);
+ silc_free(client_id);
+ goto out;
+ }
+
+ umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
+ created = TRUE;
+ create_key = FALSE;
+ }
} else {
/* The channel does not exist on our server. If we are normal server
we will send JOIN command to our router which will handle the
joining procedure (either creates the channel if it doesn't exist
or joins the client to it). */
- if (server->server_type == SILC_SERVER) {
+ if (server->server_type != SILC_ROUTER) {
SilcBuffer tmpbuf;
- unsigned short old_ident;
+ SilcUInt16 old_ident;
+
+ /* If this is pending command callback then we've resolved
+ it and it didn't work, return since we've notified the
+ client already in the command reply callback. */
+ if (cmd->pending) {
+ silc_free(client_id);
+ goto out;
+ }
old_ident = silc_command_get_ident(cmd->payload);
- silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
+ silc_command_set_ident(cmd->payload, ++server->cmd_ident);
tmpbuf = silc_command_payload_encode_payload(cmd->payload);
/* Send JOIN command to our router */
silc_server_packet_send(server, (SilcSocketConnection)
- server->router->connection,
+ SILC_PRIMARY_ROUTE(server),
SILC_PACKET_COMMAND, cmd->packet->flags,
tmpbuf->data, tmpbuf->len, TRUE);
/* Reprocess this packet after received reply from router */
silc_server_command_pending(server, SILC_COMMAND_JOIN,
silc_command_get_ident(cmd->payload),
- silc_server_command_destructor,
silc_server_command_join,
silc_server_command_dup(cmd));
cmd->pending = TRUE;
- return;
+ silc_command_set_ident(cmd->payload, old_ident);
+ silc_buffer_free(tmpbuf);
+ silc_free(client_id);
+ goto out;
}
/* We are router and the channel does not seem exist so we will check
/* Channel really does not exist, create it */
channel = silc_server_create_new_channel(server, server->id, cipher,
hmac, channel_name, TRUE);
+ if (!channel) {
+ silc_server_command_send_status_reply(
+ cmd, SILC_COMMAND_JOIN,
+ SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
+ silc_free(client_id);
+ goto out;
+ }
+
umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
created = TRUE;
+ create_key = FALSE;
}
}
}
if (!channel) {
/* Channel not found */
- /* If the command came from router and/or we are normal server then
+ /* If the command came from router and we are normal server then
something went wrong with the joining as the channel was not found.
We can't do anything else but ignore this. */
if (cmd->sock->type == SILC_SOCKET_TYPE_ROUTER ||
- server->server_type == SILC_SERVER)
+ server->server_type != SILC_ROUTER) {
+ silc_free(client_id);
goto out;
+ }
/* We are router and the channel does not seem exist so we will check
our global list as well for the channel. */
/* Channel really does not exist, create it */
channel = silc_server_create_new_channel(server, server->id, cipher,
hmac, channel_name, TRUE);
+ if (!channel) {
+ silc_server_command_send_status_reply(
+ cmd, SILC_COMMAND_JOIN,
+ SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
+ silc_free(client_id);
+ goto out;
+ }
+
umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
created = TRUE;
+ create_key = FALSE;
}
}
}
- /* If the channel does not have global users and is also empty it means the
- channel was created globally (by our router) and the client will be the
- channel founder and operator. */
- if (!channel->global_users && silc_list_count(channel->user_list) == 0) {
- umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
- created = TRUE; /* Created globally by our router */
+ /* Check whether the channel was created by our router */
+ if (cmd->pending && context2) {
+ SilcServerCommandReplyContext reply = context2;
+
+ if (silc_command_get(reply->payload) == SILC_COMMAND_JOIN) {
+ tmp = silc_argument_get_arg_type(reply->args, 6, NULL);
+ SILC_GET32_MSB(created, tmp);
+ if (silc_argument_get_arg_type(reply->args, 7, NULL))
+ create_key = FALSE; /* Router returned the key already */
+
+ if (silc_command_get_status(reply->payload, NULL, NULL) &&
+ channel->mode & SILC_CHANNEL_MODE_PASSPHRASE) {
+ /* Save channel passphrase, if user provided it successfully */
+ unsigned char *pa;
+ SilcUInt32 pa_len;
+ pa = silc_argument_get_arg_type(cmd->args, 3, &pa_len);
+ if (pa) {
+ silc_free(channel->passphrase);
+ channel->passphrase = silc_memdup(pa, pa_len);
+ }
+ }
+ }
+
+ if (silc_command_get(reply->payload) == SILC_COMMAND_WHOIS &&
+ !channel->disabled && !silc_hash_table_count(channel->user_list))
+ created = TRUE;
}
+ /* If the channel does not have global users and is also empty the client
+ will be the channel founder and operator. */
+ if (!channel->disabled &&
+ !channel->global_users && !silc_hash_table_count(channel->user_list))
+ umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
+
/* Join to the channel */
silc_server_command_join_channel(server, cmd, channel, client_id,
- created, umode);
+ created, create_key, umode,
+ auth, auth_len);
silc_free(client_id);
{
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
- char *motd;
- int motd_len;
+ SilcBuffer packet, idp;
+ char *motd, *dest_server;
+ SilcUInt32 motd_len;
+ SilcUInt16 ident = silc_command_get_ident(cmd->payload);
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_MOTD, cmd, 1, 2);
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_MOTD, cmd, 1, 1);
+
+ /* Get server name */
+ dest_server = silc_argument_get_arg_type(cmd->args, 1, NULL);
+ if (!dest_server) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_MOTD,
+ SILC_STATUS_ERR_NO_SUCH_SERVER, 0);
+ goto out;
+ }
- /* XXX show currently only our motd */
+ if (!strncasecmp(dest_server, server->server_name, strlen(dest_server))) {
+ /* Send our MOTD */
- if (server->config && server->config->motd &&
- server->config->motd->motd_file) {
+ idp = silc_id_payload_encode(server->id_entry->id, SILC_ID_SERVER);
- /* Send motd */
- motd = silc_file_read(server->config->motd->motd_file, &motd_len);
- if (!motd)
- goto out;
+ if (server->config && server->config->server_info &&
+ server->config->server_info->motd_file) {
+ /* Send motd */
+ motd = silc_file_readfile(server->config->server_info->motd_file,
+ &motd_len);
+ if (!motd)
+ goto out;
+
+ motd[motd_len] = 0;
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
+ SILC_STATUS_OK, 0,
+ ident, 2,
+ 2, idp, idp->len,
+ 3, motd, motd_len);
+ } else {
+ /* No motd */
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
+ SILC_STATUS_OK, 0,
+ ident, 1,
+ 2, idp, idp->len);
+ }
- motd[motd_len] = 0;
- silc_server_command_send_status_data(cmd, SILC_COMMAND_MOTD,
- SILC_STATUS_OK,
- 2, motd, motd_len);
- goto out;
+ silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
+ packet->data, packet->len, FALSE);
+ silc_buffer_free(packet);
+ silc_buffer_free(idp);
} else {
- /* No motd */
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_MOTD,
- SILC_STATUS_OK);
+ SilcServerEntry entry;
+
+ /* Check whether we have this server cached */
+ entry = silc_idlist_find_server_by_name(server->global_list,
+ dest_server, TRUE, NULL);
+ if (!entry) {
+ entry = silc_idlist_find_server_by_name(server->local_list,
+ dest_server, TRUE, NULL);
+ }
+
+ if (server->server_type != SILC_SERVER && !cmd->pending &&
+ entry && !entry->motd) {
+ /* Send to the server */
+ SilcBuffer tmpbuf;
+ SilcUInt16 old_ident;
+
+ old_ident = silc_command_get_ident(cmd->payload);
+ silc_command_set_ident(cmd->payload, ++server->cmd_ident);
+ tmpbuf = silc_command_payload_encode_payload(cmd->payload);
+
+ silc_server_packet_send(server, entry->connection,
+ SILC_PACKET_COMMAND, cmd->packet->flags,
+ tmpbuf->data, tmpbuf->len, TRUE);
+
+ /* Reprocess this packet after received reply from router */
+ silc_server_command_pending(server, SILC_COMMAND_MOTD,
+ silc_command_get_ident(cmd->payload),
+ silc_server_command_motd,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+ silc_command_set_ident(cmd->payload, old_ident);
+ silc_buffer_free(tmpbuf);
+ goto out;
+ }
+
+ if (!entry && !cmd->pending && !server->standalone) {
+ /* Send to the primary router */
+ SilcBuffer tmpbuf;
+ SilcUInt16 old_ident;
+
+ old_ident = silc_command_get_ident(cmd->payload);
+ silc_command_set_ident(cmd->payload, ++server->cmd_ident);
+ tmpbuf = silc_command_payload_encode_payload(cmd->payload);
+
+ silc_server_packet_send(server, SILC_PRIMARY_ROUTE(server),
+ SILC_PACKET_COMMAND, cmd->packet->flags,
+ tmpbuf->data, tmpbuf->len, TRUE);
+
+ /* Reprocess this packet after received reply from router */
+ silc_server_command_pending(server, SILC_COMMAND_MOTD,
+ silc_command_get_ident(cmd->payload),
+ silc_server_command_motd,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+ silc_command_set_ident(cmd->payload, old_ident);
+ silc_buffer_free(tmpbuf);
+ goto out;
+ }
+
+ if (!entry) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_MOTD,
+ SILC_STATUS_ERR_NO_SUCH_SERVER, 0);
+ goto out;
+ }
+
+ idp = silc_id_payload_encode(server->id_entry->id, SILC_ID_SERVER);
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
+ SILC_STATUS_OK, 0, ident, 2,
+ 2, idp, idp->len,
+ 3, entry->motd,
+ entry->motd ?
+ strlen(entry->motd) : 0);
+ silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
+ packet->data, packet->len, FALSE);
+ silc_buffer_free(packet);
+ silc_buffer_free(idp);
}
out:
silc_server_command_free(cmd);
}
-SILC_SERVER_CMD_FUNC(umode)
-{
-}
-
-/* Checks that client has rights to add or remove channel modes. If any
- of the checks fails FALSE is returned. */
+/* Server side of command UMODE. Client can use this command to set/unset
+ user mode. Client actually cannot set itself to be as server/router
+ operator so this can be used only to unset the modes. */
-int silc_server_check_cmode_rights(SilcChannelEntry channel,
- SilcChannelClientEntry client,
- unsigned int mode)
+SILC_SERVER_CMD_FUNC(umode)
{
- int is_op = client->mode & SILC_CHANNEL_UMODE_CHANOP;
- int is_fo = client->mode & SILC_CHANNEL_UMODE_CHANFO;
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ SilcBuffer packet;
+ unsigned char *tmp_mask, m[4];
+ SilcUInt32 mask = 0;
+ SilcUInt16 ident = silc_command_get_ident(cmd->payload);
+ bool set_mask = FALSE;
- /* Check whether has rights to change anything */
- if (!is_op && !is_fo)
- return FALSE;
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT || !client)
+ goto out;
- /* Check whether has rights to change everything */
- if (is_op && is_fo)
- return TRUE;
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_UMODE, cmd, 1, 2);
- /* We know that client is channel operator, check that they are not
- changing anything that requires channel founder rights. Rest of the
- modes are available automatically for channel operator. */
+ /* Get the client's mode mask */
+ tmp_mask = silc_argument_get_arg_type(cmd->args, 2, NULL);
+ if (tmp_mask) {
+ SILC_GET32_MSB(mask, tmp_mask);
+ set_mask = TRUE;
+ }
- if (mode & SILC_CHANNEL_MODE_PRIVKEY) {
- if (is_op && !is_fo)
- return FALSE;
- } else {
- if (channel->mode & SILC_CHANNEL_MODE_PRIVKEY) {
- if (is_op && !is_fo)
- return FALSE;
+ if (set_mask) {
+ /* Check that mode changing is allowed. */
+ if (!silc_server_check_umode_rights(server, client, mask)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_UMODE,
+ SILC_STATUS_ERR_PERM_DENIED, 0);
+ goto out;
}
- }
-
- if (mode & SILC_CHANNEL_MODE_PASSPHRASE) {
- if (is_op && !is_fo)
- return FALSE;
- } else {
- if (channel->mode & SILC_CHANNEL_MODE_PASSPHRASE) {
- if (is_op && !is_fo)
- return FALSE;
+
+ /* Anonymous mode cannot be set by client */
+ if (mask & SILC_UMODE_ANONYMOUS) {
+ if (!(client->mode & SILC_UMODE_ANONYMOUS)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_UMODE,
+ SILC_STATUS_ERR_PERM_DENIED, 0);
+ goto out;
+ }
+ } else {
+ if (client->mode & SILC_UMODE_ANONYMOUS) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_UMODE,
+ SILC_STATUS_ERR_PERM_DENIED, 0);
+ goto out;
+ }
}
- }
- if (mode & SILC_CHANNEL_MODE_CIPHER) {
- if (is_op && !is_fo)
- return FALSE;
- } else {
- if (channel->mode & SILC_CHANNEL_MODE_CIPHER) {
- if (is_op && !is_fo)
- return FALSE;
+ /* Update statistics */
+ if (mask & SILC_UMODE_GONE) {
+ if (!(client->mode & SILC_UMODE_GONE))
+ server->stat.my_aways++;
+ } else {
+ if (client->mode & SILC_UMODE_GONE)
+ server->stat.my_aways--;
}
+
+ /* Change the mode */
+ client->mode = mask;
+
+ /* Send UMODE change to primary router */
+ silc_server_send_notify_umode(server, SILC_PRIMARY_ROUTE(server),
+ SILC_BROADCAST(server), client->id,
+ client->mode);
+
+ /* Check if anyone is watching this nickname */
+ if (server->server_type == SILC_ROUTER)
+ silc_server_check_watcher_list(server, client, NULL,
+ SILC_NOTIFY_TYPE_UMODE_CHANGE);
}
-
- return TRUE;
+
+ /* Send command reply to sender */
+ SILC_PUT32_MSB(client->mode, m);
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_UMODE,
+ SILC_STATUS_OK, 0, ident, 1,
+ 2, m, sizeof(m));
+ silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
+ packet->data, packet->len, FALSE);
+ silc_buffer_free(packet);
+
+ out:
+ silc_server_command_free(cmd);
}
/* Server side command of CMODE. Changes channel mode */
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
- SilcChannelID *channel_id;
+ SilcIDListData idata = (SilcIDListData)client;
+ SilcChannelID *channel_id = NULL;
SilcChannelEntry channel;
SilcChannelClientEntry chl;
SilcBuffer packet, cidp;
unsigned char *tmp, *tmp_id, *tmp_mask;
- unsigned int argc, mode_mask, tmp_len, tmp_len2;
-
- SILC_LOG_DEBUG(("Start"));
-
- argc = silc_argument_get_arg_num(cmd->args);
- if (argc < 2) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- goto out;
- }
- if (argc > 8) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_TOO_MANY_PARAMS);
- goto out;
+ char *cipher = NULL, *hmac = NULL, *passphrase = NULL;
+ SilcUInt32 mode_mask = 0, old_mask = 0, tmp_len, tmp_len2;
+ SilcUInt16 ident = silc_command_get_ident(cmd->payload);
+ bool set_mask = FALSE;
+ SilcPublicKey founder_key = NULL;
+ SilcBuffer fkey = NULL;
+
+ if (!client) {
+ silc_server_command_free(cmd);
+ return;
}
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_CMODE, cmd, 1, 8);
+
/* Get Channel ID */
tmp_id = silc_argument_get_arg_type(cmd->args, 1, &tmp_len2);
if (!tmp_id) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
- goto out;
+ SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
+ silc_server_command_free(cmd);
+ return;
}
- channel_id = silc_id_payload_parse_id(tmp_id, tmp_len2);
+ channel_id = silc_id_payload_parse_id(tmp_id, tmp_len2, NULL);
if (!channel_id) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
- goto out;
- }
-
- /* Get the channel mode mask */
- tmp_mask = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
- if (!tmp_mask) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- goto out;
+ SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
+ silc_server_command_free(cmd);
+ return;
}
- SILC_GET32_MSB(mode_mask, tmp_mask);
/* Get channel entry */
channel = silc_idlist_find_channel_by_id(server->local_list,
channel_id, NULL);
if (!channel) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NO_SUCH_CHANNEL);
- goto out;
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL,
+ 0);
+ silc_free(channel_id);
+ silc_server_command_free(cmd);
+ return;
}
}
+ old_mask = channel->mode;
+
+ /* Get the channel mode mask */
+ tmp_mask = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+ if (tmp_mask) {
+ SILC_GET32_MSB(mode_mask, tmp_mask);
+ set_mask = TRUE;
+ }
/* Check whether this client is on the channel */
- if (!silc_server_client_on_channel(client, channel)) {
+ if (!silc_server_client_on_channel(client, channel, &chl)) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NOT_ON_CHANNEL);
+ SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
goto out;
}
- /* Get entry to the channel user list */
- silc_list_start(channel->user_list);
- while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END)
- if (chl->client == client)
- break;
-
/* Check that client has rights to change any requested channel modes */
- if (!silc_server_check_cmode_rights(channel, chl, mode_mask)) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NO_CHANNEL_PRIV);
+ if (set_mask && !silc_server_check_cmode_rights(server, channel, chl,
+ mode_mask)) {
+ SILC_LOG_DEBUG(("Client does not have rights to change mode"));
+ silc_server_command_send_status_reply(
+ cmd, SILC_COMMAND_CMODE,
+ (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP) ?
+ SILC_STATUS_ERR_NO_CHANNEL_PRIV :
+ SILC_STATUS_ERR_NO_CHANNEL_FOPRIV), 0);
+ goto out;
+ }
+
+ /* If mode mask was not sent as argument then merely return the current
+ mode mask to the sender. */
+ if (!set_mask) {
+ unsigned char m[4];
+ SILC_PUT32_MSB(channel->mode, m);
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CMODE,
+ SILC_STATUS_OK, 0, ident, 2,
+ 2, tmp_id, tmp_len2,
+ 3, m, sizeof(m));
+ silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
+ packet->data, packet->len, FALSE);
+ silc_buffer_free(packet);
goto out;
}
if (mode_mask & SILC_CHANNEL_MODE_PRIVKEY) {
/* Channel uses private keys to protect traffic. Client(s) has set the
key locally they want to use, server does not know that key. */
- /* Nothing interesting to do here now */
+ /* Nothing interesting to do here */
} else {
if (channel->mode & SILC_CHANNEL_MODE_PRIVKEY) {
/* The mode is removed and we need to generate and distribute
new channel key. Clients are not using private channel keys
anymore after this. */
-
- /* XXX Duplicated code, make own function for this!! LEAVE uses this
- as well */
-
- /* Re-generate channel key */
- silc_server_create_channel_key(server, channel, 0);
-
- /* Encode channel key payload to be distributed on the channel */
- packet =
- silc_channel_key_payload_encode(tmp_len2, tmp_id,
- strlen(channel->channel_key->
- cipher->name),
- channel->channel_key->cipher->name,
- channel->key_len / 8, channel->key);
- /* If we are normal server then we will send it to our router. If we
- are router we will send it to all local servers that has clients on
- the channel */
- if (server->server_type == SILC_SERVER) {
- if (!server->standalone)
- silc_server_packet_send(server,
- cmd->server->router->connection,
- SILC_PACKET_CHANNEL_KEY, 0, packet->data,
- packet->len, TRUE);
- } else {
+ /* Re-generate channel key */
+ if (!silc_server_create_channel_key(server, channel, 0))
+ goto out;
- }
-
- /* Send to locally connected clients on the channel */
- silc_server_packet_send_local_channel(server, channel,
- SILC_PACKET_CHANNEL_KEY, 0,
- packet->data, packet->len, FALSE);
- silc_buffer_free(packet);
+ /* Send the channel key. This sends it to our local clients and if
+ we are normal server to our router as well. */
+ silc_server_send_channel_key(server, NULL, channel,
+ server->server_type == SILC_ROUTER ?
+ FALSE : !server->standalone);
+
+ cipher = (char *)silc_cipher_get_name(channel->channel_key);
+ hmac = (char *)silc_hmac_get_name(channel->hmac);
}
}
-
+
if (mode_mask & SILC_CHANNEL_MODE_ULIMIT) {
/* User limit is set on channel */
- unsigned int user_limit;
+ SilcUInt32 user_limit;
/* Get user limit */
tmp = silc_argument_get_arg_type(cmd->args, 3, NULL);
if (!tmp) {
if (!(channel->mode & SILC_CHANNEL_MODE_ULIMIT)) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
goto out;
}
} else {
SILC_GET32_MSB(user_limit, tmp);
- channel->mode_data.user_limit = user_limit;
+ channel->user_limit = user_limit;
}
} else {
if (channel->mode & SILC_CHANNEL_MODE_ULIMIT)
/* User limit mode is unset. Remove user limit */
- channel->mode_data.user_limit = 0;
+ channel->user_limit = 0;
}
if (mode_mask & SILC_CHANNEL_MODE_PASSPHRASE) {
tmp = silc_argument_get_arg_type(cmd->args, 4, NULL);
if (!tmp) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
goto out;
}
/* Save the passphrase */
- channel->mode_data.passphrase = strdup(tmp);
+ passphrase = channel->passphrase = silc_memdup(tmp, strlen(tmp));
}
} else {
if (channel->mode & SILC_CHANNEL_MODE_PASSPHRASE) {
/* Passphrase mode is unset. remove the passphrase */
- if (channel->mode_data.passphrase) {
- silc_free(channel->mode_data.passphrase);
- channel->mode_data.passphrase = NULL;
- }
+ silc_free(channel->passphrase);
+ channel->passphrase = NULL;
}
}
- if (mode_mask & SILC_CHANNEL_MODE_BAN) {
- if (!(channel->mode & SILC_CHANNEL_MODE_BAN)) {
- /* Ban list is specified for channel */
+ if (mode_mask & SILC_CHANNEL_MODE_CIPHER) {
+ if (!(channel->mode & SILC_CHANNEL_MODE_CIPHER)) {
+ /* Cipher to use protect the traffic */
+ SilcCipher newkey, oldkey;
- /* Get ban list */
- tmp = silc_argument_get_arg_type(cmd->args, 5, NULL);
- if (!tmp) {
+ /* Get cipher */
+ cipher = silc_argument_get_arg_type(cmd->args, 5, NULL);
+ if (!cipher) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
goto out;
}
- /* XXX check that channel founder is not banned */
-
- /* Save the ban list */
- channel->mode_data.ban_list = strdup(tmp);
- }
- } else {
- if (channel->mode & SILC_CHANNEL_MODE_BAN) {
- /* Ban mode is unset. Remove the entire ban list */
- if (channel->mode_data.ban_list) {
- silc_free(channel->mode_data.ban_list);
- channel->mode_data.ban_list = NULL;
+ /* Delete old cipher and allocate the new one */
+ if (!silc_cipher_alloc(cipher, &newkey)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
+ SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
+ goto out;
}
- }
- }
- if (mode_mask & SILC_CHANNEL_MODE_INVITE_LIST) {
- if (!(channel->mode & SILC_CHANNEL_MODE_INVITE_LIST)) {
- /* Invite list is specified for channel */
+ oldkey = channel->channel_key;
+ channel->channel_key = newkey;
- /* Get invite list */
- tmp = silc_argument_get_arg_type(cmd->args, 6, NULL);
- if (!tmp) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ /* Re-generate channel key */
+ if (!silc_server_create_channel_key(server, channel, 0)) {
+ /* We don't have new key, revert to old one */
+ channel->channel_key = oldkey;
goto out;
}
- /* Save the invite linst */
- channel->mode_data.invite_list = strdup(tmp);
+ /* Remove old channel key for good */
+ silc_cipher_free(oldkey);
+
+ /* Send the channel key. This sends it to our local clients and if
+ we are normal server to our router as well. */
+ silc_server_send_channel_key(server, NULL, channel,
+ server->server_type == SILC_ROUTER ?
+ FALSE : !server->standalone);
}
} else {
- if (channel->mode & SILC_CHANNEL_MODE_INVITE_LIST) {
- /* Invite list mode is unset. Remove the entire invite list */
- if (channel->mode_data.invite_list) {
- silc_free(channel->mode_data.invite_list);
- channel->mode_data.invite_list = NULL;
+ if (channel->mode & SILC_CHANNEL_MODE_CIPHER) {
+ /* Cipher mode is unset. Remove the cipher and revert back to
+ default cipher */
+ SilcCipher newkey, oldkey;
+ cipher = channel->cipher;
+
+ /* Delete old cipher and allocate default one */
+ if (!silc_cipher_alloc(cipher ? cipher : SILC_DEFAULT_CIPHER, &newkey)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
+ SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
+ goto out;
+ }
+
+ oldkey = channel->channel_key;
+ channel->channel_key = newkey;
+
+ /* Re-generate channel key */
+ if (!silc_server_create_channel_key(server, channel, 0)) {
+ /* We don't have new key, revert to old one */
+ channel->channel_key = oldkey;
+ goto out;
}
+
+ /* Remove old channel key for good */
+ silc_cipher_free(oldkey);
+
+ /* Send the channel key. This sends it to our local clients and if
+ we are normal server to our router as well. */
+ silc_server_send_channel_key(server, NULL, channel,
+ server->server_type == SILC_ROUTER ?
+ FALSE : !server->standalone);
}
}
- if (mode_mask & SILC_CHANNEL_MODE_CIPHER) {
- if (!(channel->mode & SILC_CHANNEL_MODE_CIPHER)) {
- /* Cipher to use protect the traffic */
- unsigned int key_len;
+ if (mode_mask & SILC_CHANNEL_MODE_HMAC) {
+ if (!(channel->mode & SILC_CHANNEL_MODE_HMAC)) {
+ /* HMAC to use protect the traffic */
+ unsigned char hash[32];
+ SilcHmac newhmac;
- /* Get cipher */
- tmp = silc_argument_get_arg_type(cmd->args, 8, NULL);
- if (!tmp) {
+ /* Get hmac */
+ hmac = silc_argument_get_arg_type(cmd->args, 6, NULL);
+ if (!hmac) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
goto out;
}
- /* XXX Duplicated code, make own function for this!! */
-
- /* Delete old cipher and allocate the new one */
- silc_cipher_free(channel->channel_key);
- if (!silc_cipher_alloc(tmp, &channel->channel_key)) {
+ /* Delete old hmac and allocate the new one */
+ if (!silc_hmac_alloc(hmac, NULL, &newhmac)) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
+ SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
goto out;
}
- key_len = silc_cipher_get_key_len(channel->channel_key) / 8;
- /* Re-generate channel key */
- silc_server_create_channel_key(server, channel, key_len);
-
- /* Encode channel key payload to be distributed on the channel */
- packet =
- silc_channel_key_payload_encode(tmp_len2, tmp_id,
- strlen(channel->channel_key->
- cipher->name),
- channel->channel_key->cipher->name,
- channel->key_len / 8, channel->key);
-
- /* If we are normal server then we will send it to our router. If we
- are router we will send it to all local servers that has clients on
- the channel */
- if (server->server_type == SILC_SERVER) {
- if (!server->standalone)
- silc_server_packet_send(server,
- cmd->server->router->connection,
- SILC_PACKET_CHANNEL_KEY, 0, packet->data,
- packet->len, TRUE);
- } else {
-
- }
-
- /* Send to locally connected clients on the channel */
- silc_server_packet_send_local_channel(server, channel,
- SILC_PACKET_CHANNEL_KEY, 0,
- packet->data, packet->len, FALSE);
- silc_buffer_free(packet);
+ silc_hmac_free(channel->hmac);
+ channel->hmac = newhmac;
+
+ /* Set the HMAC key out of current channel key. The client must do
+ this locally. */
+ silc_hash_make(silc_hmac_get_hash(channel->hmac), channel->key,
+ channel->key_len / 8, hash);
+ silc_hmac_set_key(channel->hmac, hash,
+ silc_hash_len(silc_hmac_get_hash(channel->hmac)));
+ memset(hash, 0, sizeof(hash));
}
} else {
- if (channel->mode & SILC_CHANNEL_MODE_CIPHER) {
- /* Cipher mode is unset. Remove the cipher and revert back to
- default cipher */
-
- if (channel->mode_data.cipher) {
- silc_free(channel->mode_data.cipher);
- channel->mode_data.cipher = NULL;
- channel->mode_data.key_len = 0;
+ if (channel->mode & SILC_CHANNEL_MODE_HMAC) {
+ /* Hmac mode is unset. Remove the hmac and revert back to
+ default hmac */
+ SilcHmac newhmac;
+ unsigned char hash[32];
+ hmac = channel->hmac_name;
+
+ /* Delete old hmac and allocate default one */
+ silc_hmac_free(channel->hmac);
+ if (!silc_hmac_alloc(hmac ? hmac : SILC_DEFAULT_HMAC, NULL, &newhmac)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
+ SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
+ goto out;
}
- /* Generate new cipher and key for the channel */
-
- /* XXX Duplicated code, make own function for this!! */
+ silc_hmac_free(channel->hmac);
+ channel->hmac = newhmac;
+
+ /* Set the HMAC key out of current channel key. The client must do
+ this locally. */
+ silc_hash_make(silc_hmac_get_hash(channel->hmac), channel->key,
+ channel->key_len / 8,
+ hash);
+ silc_hmac_set_key(channel->hmac, hash,
+ silc_hash_len(silc_hmac_get_hash(channel->hmac)));
+ memset(hash, 0, sizeof(hash));
+ }
+ }
- /* Delete old cipher and allocate default one */
- silc_cipher_free(channel->channel_key);
- if (!channel->cipher)
- silc_cipher_alloc("aes-256-cbc", &channel->channel_key);
- else {
- if (!silc_cipher_alloc(channel->cipher, &channel->channel_key)) {
+ if (mode_mask & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
+ if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
+ /* Check if the founder public key was received */
+ founder_key = idata->public_key;
+ tmp = silc_argument_get_arg_type(cmd->args, 8, &tmp_len);
+ if (tmp) {
+ if (!silc_pkcs_public_key_payload_decode(tmp, tmp_len, &founder_key)) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
+ SILC_STATUS_ERR_AUTH_FAILED,
+ 0);
goto out;
}
+ } else {
+ /* If key was not sent and the channel mode has already founder
+ then the key was not to be changed. */
+ if (channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH)
+ goto has_founder;
}
- /* Re-generate channel key */
- silc_server_create_channel_key(server, channel, 0);
-
- /* Encode channel key payload to be distributed on the channel */
- packet =
- silc_channel_key_payload_encode(tmp_len2, tmp_id,
- strlen(channel->channel_key->
- cipher->name),
- channel->channel_key->cipher->name,
- channel->key_len / 8, channel->key);
-
- /* If we are normal server then we will send it to our router. If we
- are router we will send it to all local servers that has clients on
- the channel */
- if (server->server_type == SILC_SERVER) {
- if (!server->standalone)
- silc_server_packet_send(server,
- cmd->server->router->connection,
- SILC_PACKET_CHANNEL_KEY, 0, packet->data,
- packet->len, TRUE);
- } else {
-
+ /* Set the founder authentication */
+ tmp = silc_argument_get_arg_type(cmd->args, 7, &tmp_len);
+ if (!tmp) {
+ silc_server_command_send_status_reply(
+ cmd, SILC_COMMAND_CMODE,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
+ goto out;
+ }
+
+ /* Verify the payload before setting the mode */
+ if (!silc_auth_verify_data(tmp, tmp_len, SILC_AUTH_PUBLIC_KEY,
+ founder_key, 0, server->sha1hash,
+ client->id, SILC_ID_CLIENT)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
+ SILC_STATUS_ERR_AUTH_FAILED,
+ 0);
+ goto out;
+ }
+
+ /* Save the public key */
+ if (channel->founder_key)
+ silc_pkcs_public_key_free(channel->founder_key);
+ if (silc_argument_get_arg_type(cmd->args, 8, NULL))
+ channel->founder_key = founder_key;
+ else
+ channel->founder_key = silc_pkcs_public_key_copy(founder_key);
+ if (!channel->founder_key) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
+ SILC_STATUS_ERR_AUTH_FAILED,
+ 0);
+ goto out;
+ }
+
+ fkey = silc_pkcs_public_key_payload_encode(channel->founder_key);
+ if (!fkey) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
+ SILC_STATUS_ERR_AUTH_FAILED,
+ 0);
+ silc_pkcs_public_key_free(channel->founder_key);
+ channel->founder_key = NULL;
+ goto out;
+ }
+ has_founder:
+ }
+ } else {
+ if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
+ if (channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
+ if (channel->founder_key)
+ silc_pkcs_public_key_free(channel->founder_key);
+ channel->founder_key = NULL;
}
-
- /* Send to locally connected clients on the channel */
- silc_server_packet_send_local_channel(server, channel,
- SILC_PACKET_CHANNEL_KEY, 0,
- packet->data, packet->len, FALSE);
- silc_buffer_free(packet);
}
}
/* Finally, set the mode */
- channel->mode = mode_mask;
+ old_mask = channel->mode = mode_mask;
- /* Send CMODE_CHANGE notify */
+ /* Send CMODE_CHANGE notify. */
cidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
- SILC_NOTIFY_TYPE_CMODE_CHANGE, 2,
+ SILC_NOTIFY_TYPE_CMODE_CHANGE, 6,
cidp->data, cidp->len,
- tmp_mask, tmp_len);
+ tmp_mask, 4,
+ cipher, cipher ? strlen(cipher) : 0,
+ hmac, hmac ? strlen(hmac) : 0,
+ passphrase, passphrase ?
+ strlen(passphrase) : 0,
+ fkey ? fkey->data : NULL,
+ fkey ? fkey->len : 0);
/* Set CMODE notify type to network */
- if (!server->standalone)
- silc_server_send_notify_cmode(server, server->router->connection,
- server->server_type == SILC_ROUTER ?
- TRUE : FALSE, channel,
- mode_mask, client->id, SILC_ID_CLIENT_LEN);
+ silc_server_send_notify_cmode(server, SILC_PRIMARY_ROUTE(server),
+ SILC_BROADCAST(server), channel,
+ mode_mask, client->id, SILC_ID_CLIENT,
+ cipher, hmac, passphrase, founder_key);
/* Send command reply to sender */
packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CMODE,
- SILC_STATUS_OK, 0, 1,
- 2, tmp_mask, 4);
+ SILC_STATUS_OK, 0, ident, 3,
+ 2, tmp_id, tmp_len2,
+ 3, tmp_mask, 4,
+ 4, fkey ? fkey->data : NULL,
+ fkey ? fkey->len : 0);
silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
packet->data, packet->len, FALSE);
-
+
silc_buffer_free(packet);
- silc_free(channel_id);
- silc_free(cidp);
+ silc_buffer_free(cidp);
out:
+ channel->mode = old_mask;
+ silc_buffer_free(fkey);
+ silc_free(channel_id);
silc_server_command_free(cmd);
}
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
- SilcChannelID *channel_id;
- SilcClientID *client_id;
+ SilcChannelID *channel_id = NULL;
+ SilcClientID *client_id = NULL;
SilcChannelEntry channel;
SilcClientEntry target_client;
SilcChannelClientEntry chl;
SilcBuffer packet, idp;
unsigned char *tmp_id, *tmp_ch_id, *tmp_mask;
- unsigned int target_mask, sender_mask, tmp_len, tmp_ch_len;
+ SilcUInt32 target_mask, sender_mask = 0, tmp_len, tmp_ch_len;
int notify = FALSE;
+ SilcUInt16 ident = silc_command_get_ident(cmd->payload);
+ SilcPublicKey founder_key = NULL;
+ SilcBuffer fkey = NULL;
+
+ if (!client)
+ goto out;
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_CUMODE, cmd, 3, 3);
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_CUMODE, cmd, 3, 4);
/* Get Channel ID */
tmp_ch_id = silc_argument_get_arg_type(cmd->args, 1, &tmp_ch_len);
if (!tmp_ch_id) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
+ SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
goto out;
}
- channel_id = silc_id_payload_parse_id(tmp_ch_id, tmp_ch_len);
+ channel_id = silc_id_payload_parse_id(tmp_ch_id, tmp_ch_len, NULL);
if (!channel_id) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
+ SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
goto out;
}
channel_id, NULL);
if (!channel) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL,
+ 0);
goto out;
}
}
/* Check whether sender is on the channel */
- if (!silc_server_client_on_channel(client, channel)) {
+ if (!silc_server_client_on_channel(client, channel, &chl)) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NOT_ON_CHANNEL);
+ SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
goto out;
}
-
- /* Check that client has rights to change other's rights */
- silc_list_start(channel->user_list);
- while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END) {
- if (chl->client == client) {
- if (!(chl->mode & SILC_CHANNEL_UMODE_CHANFO) &&
- !(chl->mode & SILC_CHANNEL_UMODE_CHANOP)) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NO_CHANNEL_PRIV);
- goto out;
- }
-
- sender_mask = chl->mode;
- break;
- }
- }
+ sender_mask = chl->mode;
/* Get the target client's channel mode mask */
tmp_mask = silc_argument_get_arg_type(cmd->args, 2, NULL);
if (!tmp_mask) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
goto out;
}
SILC_GET32_MSB(target_mask, tmp_mask);
tmp_id = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
if (!tmp_id) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NO_CLIENT_ID);
+ SILC_STATUS_ERR_NO_CLIENT_ID, 0);
goto out;
}
- client_id = silc_id_payload_parse_id(tmp_id, tmp_len);
+ client_id = silc_id_payload_parse_id(tmp_id, tmp_len, NULL);
if (!client_id) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NO_CLIENT_ID);
+ SILC_STATUS_ERR_NO_CLIENT_ID, 0);
goto out;
}
/* Get target client's entry */
target_client = silc_idlist_find_client_by_id(server->local_list,
- client_id, NULL);
+ client_id, TRUE, NULL);
if (!target_client) {
target_client = silc_idlist_find_client_by_id(server->global_list,
- client_id, NULL);
+ client_id, TRUE, NULL);
}
- /* Check whether target client is on the channel */
- if (!silc_server_client_on_channel(target_client, channel)) {
+ if (target_client != client &&
+ !(sender_mask & SILC_CHANNEL_UMODE_CHANFO) &&
+ !(sender_mask & SILC_CHANNEL_UMODE_CHANOP)) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_USER_NOT_ON_CHANNEL);
+ SILC_STATUS_ERR_NO_CHANNEL_PRIV, 0);
goto out;
}
- /* Get entry to the channel user list */
- silc_list_start(channel->user_list);
- while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END)
- if (chl->client == target_client)
- break;
+ /* Check whether target client is on the channel */
+ if (target_client != client) {
+ if (!silc_server_client_on_channel(target_client, channel, &chl)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_USER_NOT_ON_CHANNEL, 0);
+ goto out;
+ }
+ }
/*
* Change the mode
/* If the target client is founder, no one else can change their mode
but themselves. */
- if (chl->mode & SILC_CHANNEL_UMODE_CHANFO && chl->client != target_client) {
+ if (chl->mode & SILC_CHANNEL_UMODE_CHANFO && client != target_client) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NOT_YOU);
+ SILC_STATUS_ERR_NO_CHANNEL_FOPRIV,
+ 0);
goto out;
}
if (target_mask & SILC_CHANNEL_UMODE_CHANFO) {
- /* Cannot promote anyone to channel founder */
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NOT_YOU);
- goto out;
+ if (target_client != client) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NOT_YOU, 0);
+ goto out;
+ }
+
+ if (!(chl->mode & SILC_CHANNEL_UMODE_CHANFO)) {
+ /* The client tries to claim the founder rights. */
+ unsigned char *tmp_auth;
+ SilcUInt32 tmp_auth_len;
+ SilcChannelClientEntry chl2;
+ SilcHashTableList htl;
+
+ if (!(channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) ||
+ !channel->founder_key) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_AUTH_FAILED, 0);
+ goto out;
+ }
+
+ tmp_auth = silc_argument_get_arg_type(cmd->args, 4, &tmp_auth_len);
+ if (!tmp_auth) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_AUTH_FAILED, 0);
+ goto out;
+ }
+
+ /* Verify the authentication payload */
+ if (!silc_auth_verify_data(tmp_auth, tmp_auth_len, SILC_AUTH_PUBLIC_KEY,
+ channel->founder_key, 0, server->sha1hash,
+ client->id, SILC_ID_CLIENT)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_AUTH_FAILED, 0);
+ goto out;
+ }
+
+ notify = TRUE;
+ founder_key = channel->founder_key;
+ fkey = silc_pkcs_public_key_payload_encode(founder_key);
+ if (!fkey) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_AUTH_FAILED, 0);
+ goto out;
+ }
+
+ /* There cannot be anyone else as founder on the channel now. This
+ client is definitely the founder due to this authentication */
+ silc_hash_table_list(channel->user_list, &htl);
+ while (silc_hash_table_get(&htl, NULL, (void *)&chl2))
+ if (chl2->mode & SILC_CHANNEL_UMODE_CHANFO) {
+ chl2->mode &= ~SILC_CHANNEL_UMODE_CHANFO;
+ silc_server_force_cumode_change(server, NULL, channel, chl2,
+ chl2->mode);
+ break;
+ }
+ silc_hash_table_list_reset(&htl);
+
+ sender_mask = chl->mode |= SILC_CHANNEL_UMODE_CHANFO;
+ }
+ } else {
+ if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
+ if (target_client == client) {
+ /* Remove channel founder rights from itself */
+ chl->mode &= ~SILC_CHANNEL_UMODE_CHANFO;
+ notify = TRUE;
+ } else {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NOT_YOU, 0);
+ goto out;
+ }
+ }
+ }
+
+ if (target_mask & SILC_CHANNEL_UMODE_CHANOP) {
+ /* Promote to operator */
+ if (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP)) {
+ if (!(sender_mask & SILC_CHANNEL_UMODE_CHANOP) &&
+ !(sender_mask & SILC_CHANNEL_UMODE_CHANFO)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NO_CHANNEL_PRIV,
+ 0);
+ goto out;
+ }
+
+ chl->mode |= SILC_CHANNEL_UMODE_CHANOP;
+ notify = TRUE;
+ }
+ } else {
+ if (chl->mode & SILC_CHANNEL_UMODE_CHANOP) {
+ if (!(sender_mask & SILC_CHANNEL_UMODE_CHANOP) &&
+ !(sender_mask & SILC_CHANNEL_UMODE_CHANFO)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NO_CHANNEL_PRIV,
+ 0);
+ goto out;
+ }
+
+ /* Demote to normal user */
+ chl->mode &= ~SILC_CHANNEL_UMODE_CHANOP;
+ notify = TRUE;
+ }
+ }
+
+ if (target_mask & SILC_CHANNEL_UMODE_BLOCK_MESSAGES) {
+ if (target_client != client) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NOT_YOU, 0);
+ goto out;
+ }
+
+ if (!(chl->mode & SILC_CHANNEL_UMODE_BLOCK_MESSAGES)) {
+ chl->mode |= SILC_CHANNEL_UMODE_BLOCK_MESSAGES;
+ notify = TRUE;
+ }
+ } else {
+ if (chl->mode & SILC_CHANNEL_UMODE_BLOCK_MESSAGES) {
+ if (target_client != client) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NOT_YOU, 0);
+ goto out;
+ }
+
+ chl->mode &= ~SILC_CHANNEL_UMODE_BLOCK_MESSAGES;
+ notify = TRUE;
+ }
+ }
+
+ if (target_mask & SILC_CHANNEL_UMODE_BLOCK_MESSAGES_USERS) {
+ if (target_client != client) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NOT_YOU, 0);
+ goto out;
+ }
+
+ if (!(chl->mode & SILC_CHANNEL_UMODE_BLOCK_MESSAGES_USERS)) {
+ chl->mode |= SILC_CHANNEL_UMODE_BLOCK_MESSAGES_USERS;
+ notify = TRUE;
+ }
+ } else {
+ if (chl->mode & SILC_CHANNEL_UMODE_BLOCK_MESSAGES_USERS) {
+ if (target_client != client) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NOT_YOU, 0);
+ goto out;
+ }
+
+ chl->mode &= ~SILC_CHANNEL_UMODE_BLOCK_MESSAGES_USERS;
+ notify = TRUE;
+ }
+ }
+
+ if (target_mask & SILC_CHANNEL_UMODE_BLOCK_MESSAGES_ROBOTS) {
+ if (target_client != client) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NOT_YOU, 0);
+ goto out;
+ }
+
+ if (!(chl->mode & SILC_CHANNEL_UMODE_BLOCK_MESSAGES_ROBOTS)) {
+ chl->mode |= SILC_CHANNEL_UMODE_BLOCK_MESSAGES_ROBOTS;
+ notify = TRUE;
+ }
} else {
- if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
- if (target_client == client) {
- /* Remove channel founder rights from itself */
- chl->mode &= ~SILC_CHANNEL_UMODE_CHANFO;
- notify = TRUE;
- } else {
+ if (chl->mode & SILC_CHANNEL_UMODE_BLOCK_MESSAGES_ROBOTS) {
+ if (target_client != client) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NOT_YOU);
+ SILC_STATUS_ERR_NOT_YOU, 0);
goto out;
}
+
+ chl->mode &= ~SILC_CHANNEL_UMODE_BLOCK_MESSAGES_ROBOTS;
+ notify = TRUE;
}
}
- if (target_mask & SILC_CHANNEL_UMODE_CHANOP) {
- /* Promote to operator */
- if (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP)) {
- chl->mode |= SILC_CHANNEL_UMODE_CHANOP;
+ if (target_mask & SILC_CHANNEL_UMODE_QUIET) {
+ if (!(chl->mode & SILC_CHANNEL_UMODE_QUIET)) {
+ if (client == target_client) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_PERM_DENIED, 0);
+ goto out;
+ }
+ chl->mode |= SILC_CHANNEL_UMODE_QUIET;
notify = TRUE;
}
} else {
- if (chl->mode & SILC_CHANNEL_UMODE_CHANOP) {
- /* Demote to normal user */
- chl->mode &= ~SILC_CHANNEL_UMODE_CHANOP;
+ if (chl->mode & SILC_CHANNEL_UMODE_QUIET) {
+ if (client == target_client) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_PERM_DENIED, 0);
+ goto out;
+ }
+ chl->mode &= ~SILC_CHANNEL_UMODE_QUIET;
notify = TRUE;
}
}
idp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
+ tmp_id = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
/* Send notify to channel, notify only if mode was actually changed. */
if (notify) {
- silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
- SILC_NOTIFY_TYPE_CUMODE_CHANGE, 3,
+ silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
+ SILC_NOTIFY_TYPE_CUMODE_CHANGE, 4,
idp->data, idp->len,
tmp_mask, 4,
- tmp_id, tmp_len);
+ tmp_id, tmp_len,
+ fkey ? fkey->data : NULL,
+ fkey ? fkey->len : 0);
/* Set CUMODE notify type to network */
- if (!server->standalone)
- silc_server_send_notify_cumode(server, server->router->connection,
- server->server_type == SILC_ROUTER ?
- TRUE : FALSE, channel,
- target_mask, client->id,
- SILC_ID_CLIENT_LEN,
- target_client->id,
- SILC_ID_CLIENT_LEN);
+ silc_server_send_notify_cumode(server, SILC_PRIMARY_ROUTE(server),
+ SILC_BROADCAST(server), channel,
+ target_mask, client->id, SILC_ID_CLIENT,
+ target_client->id, founder_key);
}
/* Send command reply to sender */
packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CUMODE,
- SILC_STATUS_OK, 0, 2,
+ SILC_STATUS_OK, 0, ident, 3,
2, tmp_mask, 4,
- 3, tmp_id, tmp_len);
+ 3, tmp_ch_id, tmp_ch_len,
+ 4, tmp_id, tmp_len);
silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
packet->data, packet->len, FALSE);
silc_buffer_free(packet);
- silc_free(channel_id);
- silc_free(client_id);
silc_buffer_free(idp);
out:
+ silc_free(channel_id);
+ silc_free(client_id);
+ silc_buffer_free(fkey);
silc_server_command_free(cmd);
}
SilcChannelEntry channel;
SilcChannelClientEntry chl;
SilcBuffer idp;
- unsigned int tmp_len;
- unsigned char *tmp, *comment;
+ SilcUInt32 tmp_len, target_idp_len;
+ unsigned char *tmp, *comment, *target_idp;
+
+ if (!client)
+ goto out;
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_LEAVE, cmd, 1, 3);
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_LEAVE, cmd, 1, 3);
/* Get Channel ID */
tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
if (!tmp) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
+ SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
goto out;
}
- channel_id = silc_id_payload_parse_id(tmp, tmp_len);
+ channel_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
if (!channel_id) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
+ SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
goto out;
}
channel_id, NULL);
if (!channel) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
- SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL,
+ 0);
goto out;
}
}
/* Check whether sender is on the channel */
- if (!silc_server_client_on_channel(client, channel)) {
+ if (!silc_server_client_on_channel(client, channel, &chl)) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
- SILC_STATUS_ERR_NOT_ON_CHANNEL);
+ SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
goto out;
}
/* Check that the kicker is channel operator or channel founder */
- silc_list_start(channel->user_list);
- while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END) {
- if (chl->client == client) {
- if (chl->mode == SILC_CHANNEL_UMODE_NONE) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
- SILC_STATUS_ERR_NO_CHANNEL_PRIV);
- goto out;
- }
- break;
- }
+ if (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP) &&
+ !(chl->mode & SILC_CHANNEL_UMODE_CHANFO)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
+ SILC_STATUS_ERR_NO_CHANNEL_PRIV, 0);
+ goto out;
}
/* Get target Client ID */
- tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
- if (!tmp) {
+ target_idp = silc_argument_get_arg_type(cmd->args, 2, &target_idp_len);
+ if (!target_idp) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
- SILC_STATUS_ERR_NO_CLIENT_ID);
+ SILC_STATUS_ERR_NO_CLIENT_ID, 0);
goto out;
}
- client_id = silc_id_payload_parse_id(tmp, tmp_len);
+ client_id = silc_id_payload_parse_id(target_idp, target_idp_len, NULL);
if (!client_id) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
- SILC_STATUS_ERR_NO_CLIENT_ID);
+ SILC_STATUS_ERR_NO_CLIENT_ID, 0);
goto out;
}
/* Get target client's entry */
target_client = silc_idlist_find_client_by_id(server->local_list,
- client_id, NULL);
+ client_id, TRUE, NULL);
if (!target_client) {
target_client = silc_idlist_find_client_by_id(server->global_list,
- client_id, NULL);
+ client_id, TRUE, NULL);
}
- /* Check that the target client is not channel founder. Channel founder
- cannot be kicked from the channel. */
- silc_list_start(channel->user_list);
- while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END) {
- if (chl->client == target_client) {
- if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
- SILC_STATUS_ERR_NO_CHANNEL_FOPRIV);
- goto out;
- }
- break;
- }
- }
-
/* Check whether target client is on the channel */
- if (!silc_server_client_on_channel(target_client, channel)) {
+ if (!silc_server_client_on_channel(target_client, channel, &chl)) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
- SILC_STATUS_ERR_USER_NOT_ON_CHANNEL);
+ SILC_STATUS_ERR_USER_NOT_ON_CHANNEL,
+ 0);
goto out;
}
+ /* Check that the target client is not channel founder. Channel founder
+ cannot be kicked from the channel. */
+ if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
+ SILC_STATUS_ERR_NO_CHANNEL_FOPRIV,
+ 0);
+ goto out;
+ }
+
/* Get comment */
tmp_len = 0;
comment = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
/* Send command reply to sender */
silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
- SILC_STATUS_OK);
+ SILC_STATUS_OK, 0);
/* Send KICKED notify to local clients on the channel */
- idp = silc_id_payload_encode(target_client->id, SILC_ID_CLIENT);
+ idp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
- SILC_NOTIFY_TYPE_KICKED,
- comment ? 2 : 1,
- idp->data, idp->len,
- comment, comment ? strlen(comment) : 0);
+ SILC_NOTIFY_TYPE_KICKED, 3,
+ target_idp, target_idp_len,
+ comment, comment ? strlen(comment) : 0,
+ idp->data, idp->len);
silc_buffer_free(idp);
+ /* Send KICKED notify to primary route */
+ silc_server_send_notify_kicked(server, SILC_PRIMARY_ROUTE(server),
+ SILC_BROADCAST(server), channel,
+ target_client->id, client->id, comment);
+
+ /* Remove the client from channel's invite list */
+ if (channel->invite_list && silc_hash_table_count(channel->invite_list)) {
+ SilcBuffer ab =
+ silc_argument_payload_encode_one(NULL, target_idp, target_idp_len, 3);
+ SilcArgumentPayload args =
+ silc_argument_payload_parse(ab->data, ab->len, 1);
+ silc_server_inviteban_process(server, channel->invite_list, 1, args);
+ silc_buffer_free(ab);
+ silc_argument_payload_free(args);
+ }
+
/* Remove the client from the channel. If the channel does not exist
- after removing the client then the client kicked itself of the channel
+ after removing the client then the client kicked itself off the channel
and we don't have to send anything after that. */
if (!silc_server_remove_from_one_channel(server, NULL, channel,
target_client, FALSE))
goto out;
- /* Send KICKED notify to primary route */
- if (!server->standalone)
- silc_server_send_notify_kicked(server, server->router->connection,
- server->server_type == SILC_ROUTER ?
- TRUE : FALSE, channel,
- target_client->id, SILC_ID_CLIENT_LEN,
- comment);
-
- /* Re-generate channel key */
- silc_server_create_channel_key(server, channel, 0);
-
- /* Send the channel key to the channel. The key of course is not sent
- to the client who joined the channel. */
- silc_server_send_channel_key(server, target_client->connection, channel,
- server->server_type == SILC_ROUTER ?
- FALSE : !server->standalone);
+ if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
+ /* Re-generate channel key */
+ if (!silc_server_create_channel_key(server, channel, 0))
+ goto out;
+
+ /* Send the channel key to the channel. The key of course is not sent
+ to the client who was kicked off the channel. */
+ silc_server_send_channel_key(server, target_client->connection, channel,
+ server->server_type == SILC_ROUTER ?
+ FALSE : !server->standalone);
+ }
out:
silc_server_command_free(cmd);
}
+/* Server side of OPER command. Client uses this comand to obtain server
+ operator privileges to this server/router. */
+
SILC_SERVER_CMD_FUNC(oper)
{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ unsigned char *username, *auth;
+ SilcUInt32 tmp_len;
+ SilcServerConfigAdmin *admin;
+ SilcIDListData idata = (SilcIDListData)client;
+ bool result = FALSE;
+ SilcPublicKey cached_key;
+
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT || !client)
+ goto out;
+
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_OPER, cmd, 1, 2);
+
+ /* Get the username */
+ username = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+ if (!username) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
+ goto out;
+ }
+
+ /* Get the admin configuration */
+ admin = silc_server_config_find_admin(server, cmd->sock->ip,
+ username, client->nickname);
+ if (!admin) {
+ admin = silc_server_config_find_admin(server, cmd->sock->hostname,
+ username, client->nickname);
+ if (!admin) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
+ SILC_STATUS_ERR_AUTH_FAILED,
+ 0);
+ SILC_LOG_INFO(("OPER authentication failed for username '%s' by "
+ "nickname '%s' from %s", username,
+ client->nickname, cmd->sock->hostname));
+ goto out;
+ }
+ }
+
+ /* Get the authentication payload */
+ auth = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+ if (!auth) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
+ goto out;
+ }
+
+ /* Verify the authentication data. If both passphrase and public key
+ is set then try both of them. */
+ if (admin->passphrase)
+ result = silc_auth_verify_data(auth, tmp_len, SILC_AUTH_PASSWORD,
+ admin->passphrase, admin->passphrase_len,
+ idata->hash, client->id, SILC_ID_CLIENT);
+ if (!result && admin->publickeys) {
+ cached_key = silc_server_get_public_key(server, admin->publickeys);
+ if (!cached_key)
+ goto out;
+ result = silc_auth_verify_data(auth, tmp_len, SILC_AUTH_PUBLIC_KEY,
+ cached_key, 0, idata->hash,
+ client->id, SILC_ID_CLIENT);
+ }
+ if (!result) {
+ /* Authentication failed */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
+ SILC_STATUS_ERR_AUTH_FAILED,
+ 0);
+ goto out;
+ }
+
+ /* Client is now server operator */
+ client->mode |= SILC_UMODE_SERVER_OPERATOR;
+
+ /* Update statistics */
+ if (SILC_IS_LOCAL(client))
+ server->stat.my_server_ops++;
+ if (server->server_type == SILC_ROUTER)
+ server->stat.server_ops++;
+
+ /* Send UMODE change to primary router */
+ silc_server_send_notify_umode(server, SILC_PRIMARY_ROUTE(server),
+ SILC_BROADCAST(server), client->id,
+ client->mode);
+
+ /* Check if anyone is watching this nickname */
+ if (server->server_type == SILC_ROUTER)
+ silc_server_check_watcher_list(server, client, NULL,
+ SILC_NOTIFY_TYPE_UMODE_CHANGE);
+
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
+ SILC_STATUS_OK, 0);
+
+ out:
+ silc_server_command_free(cmd);
+}
+
+SILC_TASK_CALLBACK(silc_server_command_detach_cb)
+{
+ SilcServer server = app_context;
+ QuitInternal q = (QuitInternal)context;
+ SilcClientID *client_id = (SilcClientID *)q->sock;
+ SilcClientEntry client;
+ SilcSocketConnection sock;
+
+ client = silc_idlist_find_client_by_id(server->local_list, client_id,
+ TRUE, NULL);
+ if (client && client->connection) {
+ sock = client->connection;
+
+ /* If there is pending outgoing data for the client then purge it
+ to the network before closing connection. */
+ silc_server_packet_queue_purge(server, sock);
+
+ /* Close the connection on our side */
+ client->router = NULL;
+ client->connection = NULL;
+ sock->user_data = NULL;
+ silc_server_close_connection(server, sock);
+ }
+
+ silc_free(client_id);
+ silc_free(q);
}
-SILC_SERVER_CMD_FUNC(silcoper)
+SILC_TASK_CALLBACK(silc_server_command_detach_timeout)
{
+ SilcServer server = app_context;
+ QuitInternal q = (QuitInternal)context;
+ SilcClientID *client_id = (SilcClientID *)q->sock;
+ SilcClientEntry client;
+
+ client = silc_idlist_find_client_by_id(server->local_list, client_id,
+ TRUE, NULL);
+ if (client && client->mode & SILC_UMODE_DETACHED) {
+ SILC_LOG_DEBUG(("Detach timeout"));
+ silc_server_free_client_data(server, NULL, client, TRUE,
+ "Detach timeout");
+ }
+
+ silc_free(client_id);
+ silc_free(q);
}
-/* Server side command of CONNECT. Connects us to the specified remote
- server or router. */
+/* Server side of DETACH command. Detached the client from the network
+ by closing the connection but preserving the session. */
-SILC_SERVER_CMD_FUNC(connect)
+SILC_SERVER_CMD_FUNC(detach)
{
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
- unsigned char *tmp;
- unsigned int tmp_len;
- unsigned int port = SILC_PORT;
-
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_CONNECT, cmd, 1, 2);
+ QuitInternal q;
- if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
+ if (server->config->detach_disabled) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_DETACH,
+ SILC_STATUS_ERR_OPERATION_ALLOWED,
+ 0);
goto out;
+ }
- /* Check whether client has the permissions. */
- if (client->mode == SILC_UMODE_NONE) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CONNECT,
- SILC_STATUS_ERR_NO_SERVER_PRIV);
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT || !client)
goto out;
+
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_DETACH, cmd, 0, 0);
+
+ /* Remove operator privileges, since the client may resume in some
+ other server which to it does not have operator privileges. */
+ SILC_OPER_STATS_UPDATE(client, server, SILC_UMODE_SERVER_OPERATOR);
+ SILC_OPER_STATS_UPDATE(client, router, SILC_UMODE_ROUTER_OPERATOR);
+
+ /* Send the user mode notify to notify that client is detached */
+ client->mode |= SILC_UMODE_DETACHED;
+ client->data.status &= ~SILC_IDLIST_STATUS_RESUMED;
+ client->data.status &= ~SILC_IDLIST_STATUS_NOATTR;
+ client->last_command = 0;
+ client->fast_command = 0;
+ silc_server_send_notify_umode(server, SILC_PRIMARY_ROUTE(server),
+ SILC_BROADCAST(server), client->id,
+ client->mode);
+ server->stat.my_detached++;
+
+ /* Check if anyone is watching this nickname */
+ if (server->server_type == SILC_ROUTER)
+ silc_server_check_watcher_list(server, client, NULL,
+ SILC_NOTIFY_TYPE_UMODE_CHANGE);
+
+ q = silc_calloc(1, sizeof(*q));
+ q->sock = silc_id_dup(client->id, SILC_ID_CLIENT);
+ silc_schedule_task_add(server->schedule, 0, silc_server_command_detach_cb,
+ q, 0, 200000, SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
+
+ if (server->config->detach_timeout) {
+ q = silc_calloc(1, sizeof(*q));
+ q->sock = silc_id_dup(client->id, SILC_ID_CLIENT);
+ silc_schedule_task_add(server->schedule, 0,
+ silc_server_command_detach_timeout,
+ q, server->config->detach_timeout * 60,
+ 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
}
- if (server->server_type == SILC_ROUTER &&
- client->mode & SILC_UMODE_SERVER_OPERATOR) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CONNECT,
- SILC_STATUS_ERR_NO_ROUTER_PRIV);
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_DETACH,
+ SILC_STATUS_OK, 0);
+
+ out:
+ silc_server_command_free(cmd);
+}
+
+/* Server side of WATCH command. */
+
+SILC_SERVER_CMD_FUNC(watch)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ char *add_nick, *del_nick;
+ SilcUInt32 add_nick_len, del_nick_len, tmp_len;
+ char nick[128 + 1];
+ unsigned char hash[16], *tmp;
+ SilcClientEntry client;
+ SilcClientID *client_id = NULL;
+
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_WATCH, cmd, 1, 3);
+
+ if (server->server_type != SILC_ROUTER && !server->standalone) {
+ if (!cmd->pending) {
+ /* Send the command to router */
+ SilcBuffer tmpbuf;
+ SilcUInt16 old_ident;
+
+ SILC_LOG_DEBUG(("Forwarding WATCH to router"));
+
+ old_ident = silc_command_get_ident(cmd->payload);
+ silc_command_set_ident(cmd->payload, ++server->cmd_ident);
+ tmpbuf = silc_command_payload_encode_payload(cmd->payload);
+
+ silc_server_packet_send(server, SILC_PRIMARY_ROUTE(server),
+ SILC_PACKET_COMMAND, cmd->packet->flags,
+ tmpbuf->data, tmpbuf->len, TRUE);
+
+ /* Reprocess this packet after received reply from router */
+ silc_server_command_pending(server, SILC_COMMAND_WATCH,
+ silc_command_get_ident(cmd->payload),
+ silc_server_command_watch,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+ silc_command_set_ident(cmd->payload, old_ident);
+ silc_buffer_free(tmpbuf);
+ } else if (context2) {
+ /* Received reply from router, just send same data to the client. */
+ SilcServerCommandReplyContext reply = context2;
+ SilcStatus status;
+
+ SILC_LOG_DEBUG(("Received reply to WATCH from router"));
+ silc_command_get_status(reply->payload, &status, NULL);
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH, status,
+ 0);
+ }
+
goto out;
}
- /* Get the remote server */
+ /* We are router and keep the watch list for local cell */
+
+ /* Get the client ID */
tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
if (!tmp) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CONNECT,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
+ goto out;
+ }
+ client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
+ if (!client_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
+ SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
+ 0);
goto out;
}
- /* Get port */
- tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
- if (tmp)
- SILC_GET32_MSB(port, tmp);
+ /* Get the client entry which must be in local list */
+ client = silc_idlist_find_client_by_id(server->local_list,
+ client_id, TRUE, NULL);
+ if (!client) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
+ SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
+ 0);
+ goto out;
+ }
- /* Create the connection. It is done with timeout and is async. */
- silc_server_create_connection(server, tmp, port);
+ /* Take nickname */
+ add_nick = silc_argument_get_arg_type(cmd->args, 2, &add_nick_len);
+ del_nick = silc_argument_get_arg_type(cmd->args, 3, &del_nick_len);
+ if (!add_nick && !del_nick) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
+ goto out;
+ }
- /* Send reply to the sender */
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CONNECT,
- SILC_STATUS_OK);
+ if (add_nick && add_nick_len > 128)
+ add_nick[128] = '\0';
+ if (del_nick && del_nick_len > 128)
+ del_nick[128] = '\0';
+
+ memset(nick, 0, sizeof(nick));
+
+ /* Add new nickname to be watched in our cell */
+ if (add_nick) {
+ if (silc_server_name_bad_chars(add_nick, strlen(add_nick)) == TRUE) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
+ SILC_STATUS_ERR_BAD_NICKNAME, 0);
+ goto out;
+ }
+
+ /* Hash the nick, we have the hash saved, not nicks because we can
+ do one to one mapping to the nick from Client ID hash this way. */
+ silc_to_lower(add_nick, nick, sizeof(nick) - 1);
+ silc_hash_make(server->md5hash, nick, strlen(nick), hash);
+
+ /* Check whether this client is already watching this nickname */
+ if (silc_hash_table_find_by_context(server->watcher_list, hash,
+ client, NULL)) {
+ /* Nickname is alredy being watched for this client */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
+ SILC_STATUS_ERR_NICKNAME_IN_USE,
+ 0);
+ goto out;
+ }
+
+ /* Get the nickname from the watcher list and use the same key in
+ new entries as well. If key doesn't exist then create it. */
+ if (!silc_hash_table_find(server->watcher_list, hash, (void **)&tmp, NULL))
+ tmp = silc_memdup(hash, CLIENTID_HASH_LEN);
+
+ /* Add the client to the watcher list with the specified nickname hash. */
+ silc_hash_table_add(server->watcher_list, tmp, client);
+ }
+
+ /* Delete nickname from watch list */
+ if (del_nick) {
+ if (silc_server_name_bad_chars(del_nick, strlen(del_nick)) == TRUE) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
+ SILC_STATUS_ERR_BAD_NICKNAME, 0);
+ goto out;
+ }
+
+ /* Hash the nick, we have the hash saved, not nicks because we can
+ do one to one mapping to the nick from Client ID hash this way. */
+ silc_to_lower(del_nick, nick, sizeof(nick) - 1);
+ silc_hash_make(server->md5hash, nick, strlen(nick), hash);
+
+ /* Check that this client is watching for this nickname */
+ if (!silc_hash_table_find_by_context(server->watcher_list, hash,
+ client, (void **)&tmp)) {
+ /* Nickname is alredy being watched for this client */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
+ SILC_STATUS_ERR_NO_SUCH_NICK, 0);
+ goto out;
+ }
+
+ /* Delete the nickname from the watcher list. */
+ silc_hash_table_del_by_context(server->watcher_list, hash, client);
+
+ /* Now check whether there still exists entries with this key, if not
+ then free the key to not leak memory. */
+ if (!silc_hash_table_find(server->watcher_list, hash, NULL, NULL))
+ silc_free(tmp);
+ }
+
+ /* Distribute the watch list to backup routers too */
+ if (server->backup) {
+ SilcBuffer tmpbuf;
+ silc_command_set_ident(cmd->payload, ++server->cmd_ident);
+ tmpbuf = silc_command_payload_encode_payload(cmd->payload);
+ silc_server_backup_send(server, NULL, SILC_PACKET_COMMAND,
+ cmd->packet->flags, tmpbuf->data, tmpbuf->len,
+ FALSE, TRUE);
+ silc_buffer_free(tmpbuf);
+ }
+
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
+ SILC_STATUS_OK, 0);
out:
+ silc_free(client_id);
silc_server_command_free(cmd);
}
-SILC_SERVER_CMD_FUNC(restart)
-{
-}
+/* Server side of SILCOPER command. Client uses this comand to obtain router
+ operator privileges to this router. */
-/* Server side command of CLOSE. Closes connection to a specified server. */
-
-SILC_SERVER_CMD_FUNC(close)
+SILC_SERVER_CMD_FUNC(silcoper)
{
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
- SilcServerEntry server_entry;
- unsigned char *tmp;
- unsigned int tmp_len;
- unsigned char *name;
- unsigned int port = SILC_PORT;
+ unsigned char *username, *auth;
+ SilcUInt32 tmp_len;
+ SilcServerConfigAdmin *admin;
+ SilcIDListData idata = (SilcIDListData)client;
+ bool result = FALSE;
+ SilcPublicKey cached_key;
+
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT || !client)
+ goto out;
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_CLOSE, cmd, 1, 2);
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_SILCOPER, cmd, 1, 2);
- if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
+ if (server->server_type != SILC_ROUTER) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
+ SILC_STATUS_ERR_AUTH_FAILED, 0);
goto out;
+ }
- /* Check whether client has the permissions. */
- if (client->mode == SILC_UMODE_NONE) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
- SILC_STATUS_ERR_NO_SERVER_PRIV);
+ /* Get the username */
+ username = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+ if (!username) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
goto out;
}
- /* Get the remote server */
- name = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
- if (!name) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- goto out;
+ /* Get the admin configuration */
+ admin = silc_server_config_find_admin(server, cmd->sock->ip,
+ username, client->nickname);
+ if (!admin) {
+ admin = silc_server_config_find_admin(server, cmd->sock->hostname,
+ username, client->nickname);
+ if (!admin) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
+ SILC_STATUS_ERR_AUTH_FAILED, 0);
+ SILC_LOG_INFO(("SILCOPER authentication failed for username '%s' by "
+ "nickname '%s' from %s", username,
+ client->nickname, cmd->sock->hostname));
+ goto out;
+ }
}
- /* Get port */
- tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
- if (tmp)
- SILC_GET32_MSB(port, tmp);
+ /* Get the authentication payload */
+ auth = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+ if (!auth) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
+ goto out;
+ }
- server_entry = silc_idlist_find_server_by_conn(server->local_list,
- name, port, NULL);
- if (!server_entry) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
- SILC_STATUS_ERR_NO_SERVER_ID);
+ /* Verify the authentication data. If both passphrase and public key
+ is set then try both of them. */
+ if (admin->passphrase)
+ result = silc_auth_verify_data(auth, tmp_len, SILC_AUTH_PASSWORD,
+ admin->passphrase, admin->passphrase_len,
+ idata->hash, client->id, SILC_ID_CLIENT);
+ if (!result && admin->publickeys) {
+ cached_key = silc_server_get_public_key(server, admin->publickeys);
+ if (!cached_key)
+ goto out;
+ result = silc_auth_verify_data(auth, tmp_len, SILC_AUTH_PUBLIC_KEY,
+ cached_key, 0, idata->hash,
+ client->id, SILC_ID_CLIENT);
+ }
+ if (!result) {
+ /* Authentication failed */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
+ SILC_STATUS_ERR_AUTH_FAILED, 0);
goto out;
}
- /* Close the connection to the server */
- silc_server_free_sock_user_data(server, server_entry->connection);
- silc_server_disconnect_remote(server, server_entry->connection,
- "Server closed connection: "
- "Closed by operator");
-
+ /* Client is now router operator */
+ client->mode |= SILC_UMODE_ROUTER_OPERATOR;
+
+ /* Update statistics */
+ if (SILC_IS_LOCAL(client))
+ server->stat.my_router_ops++;
+ if (server->server_type == SILC_ROUTER)
+ server->stat.router_ops++;
+
+ /* Send UMODE change to primary router */
+ silc_server_send_notify_umode(server, SILC_PRIMARY_ROUTE(server),
+ SILC_BROADCAST(server), client->id,
+ client->mode);
+
+ /* Check if anyone is watching this nickname */
+ if (server->server_type == SILC_ROUTER)
+ silc_server_check_watcher_list(server, client, NULL,
+ SILC_NOTIFY_TYPE_UMODE_CHANGE);
+
/* Send reply to the sender */
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
- SILC_STATUS_OK);
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
+ SILC_STATUS_OK, 0);
out:
silc_server_command_free(cmd);
}
-/* Server side command of SHUTDOWN. Shutdowns the server and closes all
- active connections. */
-
-SILC_SERVER_CMD_FUNC(shutdown)
+/* Server side of command BAN. This is used to manage the ban list of the
+ channel. To add clients and remove clients from the ban list. */
+
+SILC_SERVER_CMD_FUNC(ban)
{
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ SilcBuffer packet, list, tmp2;
+ SilcChannelEntry channel;
+ SilcChannelClientEntry chl;
+ SilcChannelID *channel_id = NULL;
+ unsigned char *id, *tmp;
+ SilcUInt32 id_len, len;
+ SilcArgumentPayload args;
+ SilcHashTableList htl;
+ SilcUInt32 type;
+ SilcUInt16 argc = 0, ident = silc_command_get_ident(cmd->payload);
+
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT || !client)
+ goto out;
+
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_BAN, cmd, 0, 3);
+
+ /* Get Channel ID */
+ id = silc_argument_get_arg_type(cmd->args, 1, &id_len);
+ if (id) {
+ channel_id = silc_id_payload_parse_id(id, id_len, NULL);
+ if (!channel_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
+ SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
+ goto out;
+ }
+ }
+
+ /* Get channel entry. The server must know about the channel since the
+ client is expected to be on the channel. */
+ channel = silc_idlist_find_channel_by_id(server->local_list,
+ channel_id, NULL);
+ if (!channel) {
+ channel = silc_idlist_find_channel_by_id(server->global_list,
+ channel_id, NULL);
+ if (!channel) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL,
+ 0);
+ goto out;
+ }
+ }
+
+ /* Check whether this client is on the channel */
+ if (!silc_server_client_on_channel(client, channel, &chl)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
+ SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
+ goto out;
+ }
+
+ /* The client must be at least channel operator. */
+ if (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
+ SILC_STATUS_ERR_NO_CHANNEL_PRIV, 0);
+ goto out;
+ }
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_SHUTDOWN, cmd, 0, 0);
+ /* Get the ban information */
+ tmp = silc_argument_get_arg_type(cmd->args, 3, &len);
+ if (tmp && len > 2) {
+ /* Parse the arguments to see they are constructed correctly */
+ SILC_GET16_MSB(argc, tmp);
+ args = silc_argument_payload_parse(tmp + 2, len - 2, argc);
+ if (!args) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
+ goto out;
+ }
- if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
- goto out;
+ /* Get the type of action */
+ tmp = silc_argument_get_arg_type(cmd->args, 2, &len);
+ if (tmp && len == 1) {
+ if (tmp[0] == 0x00) {
+ /* Allocate hash table for ban list if it doesn't exist yet */
+ if (!channel->ban_list)
+ channel->ban_list =
+ silc_hash_table_alloc(0, silc_hash_ptr,
+ NULL, NULL, NULL,
+ silc_server_inviteban_destruct, channel,
+ TRUE);
+
+ /* Check for resource limit */
+ if (silc_hash_table_count(channel->ban_list) > 64) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
+ SILC_STATUS_ERR_RESOURCE_LIMIT,
+ 0);
+ goto out;
+ }
+ }
- /* Check whether client has the permission. */
- if (client->mode == SILC_UMODE_NONE) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_SHUTDOWN,
- SILC_STATUS_ERR_NO_SERVER_PRIV);
- goto out;
+ /* Now add or delete the information. */
+ silc_server_inviteban_process(server, channel->ban_list,
+ (SilcUInt8)tmp[0], args);
+ }
+ silc_argument_payload_free(args);
}
- /* Then, gracefully, or not, bring the server down. */
- silc_server_stop(server);
+ /* Encode ban list */
+ list = NULL;
+ if (channel->ban_list && silc_hash_table_count(channel->ban_list)) {
+ list = silc_buffer_alloc_size(2);
+ silc_buffer_format(list,
+ SILC_STR_UI_SHORT(silc_hash_table_count(
+ channel->ban_list)),
+ SILC_STR_END);
+ silc_hash_table_list(channel->ban_list, &htl);
+ while (silc_hash_table_get(&htl, (void **)&type, (void **)&tmp2)) {
+ if (type == 1)
+ list = silc_argument_payload_encode_one(list, (char *)tmp2,
+ strlen((char *)tmp2), type);
+ else
+ list = silc_argument_payload_encode_one(list, tmp2->data, tmp2->len,
+ type);
+ }
+ silc_hash_table_list_reset(&htl);
+ }
- /* Send reply to the sender */
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_SHUTDOWN,
- SILC_STATUS_OK);
+ /* Send the BAN notify type to our primary router. */
+ if (list)
+ silc_server_send_notify_ban(server, SILC_PRIMARY_ROUTE(server),
+ SILC_BROADCAST(server), channel,
+ silc_argument_get_arg_type(cmd->args, 2, NULL),
+ list);
+
+ /* Send the reply back to the client */
+ packet =
+ silc_command_reply_payload_encode_va(SILC_COMMAND_BAN,
+ SILC_STATUS_OK, 0, ident, 2,
+ 2, id, id_len,
+ 3, list ? list->data : NULL,
+ list ? list->len : 0);
+ silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
+ packet->data, packet->len, FALSE);
+
+ silc_buffer_free(packet);
+ silc_buffer_free(list);
out:
+ silc_free(channel_id);
silc_server_command_free(cmd);
}
-
+
/* Server side command of LEAVE. Removes client from a channel. */
SILC_SERVER_CMD_FUNC(leave)
SilcServer server = cmd->server;
SilcSocketConnection sock = cmd->sock;
SilcClientEntry id_entry = (SilcClientEntry)cmd->sock->user_data;
- SilcChannelID *id;
+ SilcChannelID *id = NULL;
SilcChannelEntry channel;
- SilcBuffer packet;
- unsigned int i, len;
+ SilcUInt32 len;
unsigned char *tmp;
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_LEAVE, cmd, 1, 2);
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT || !id_entry)
+ goto out;
+
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_LEAVE, cmd, 1, 2);
/* Get Channel ID */
tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
if (!tmp) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
+ SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
goto out;
}
- id = silc_id_payload_parse_id(tmp, len);
+ id = silc_id_payload_parse_id(tmp, len, NULL);
if (!id) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
+ SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
goto out;
}
channel = silc_idlist_find_channel_by_id(server->global_list, id, NULL);
if (!channel) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
- SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL,
+ 0);
goto out;
}
}
/* Check whether this client is on the channel */
- if (!silc_server_client_on_channel(id_entry, channel)) {
+ if (!silc_server_client_on_channel(id_entry, channel, NULL)) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
- SILC_STATUS_ERR_NOT_ON_CHANNEL);
+ SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
goto out;
}
/* Notify routers that they should remove this client from their list
of clients on the channel. Send LEAVE notify type. */
- if (!server->standalone)
- silc_server_send_notify_leave(server, server->router->connection,
- server->server_type == SILC_ROUTER ?
- TRUE : FALSE, channel, id_entry->id,
- SILC_ID_CLIENT_LEN);
+ silc_server_send_notify_leave(server, SILC_PRIMARY_ROUTE(server),
+ SILC_BROADCAST(server), channel, id_entry->id);
- /* Remove client from channel */
- i = silc_server_remove_from_one_channel(server, sock, channel, id_entry,
- TRUE);
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
- SILC_STATUS_OK);
+ silc_server_command_send_status_data(cmd, SILC_COMMAND_LEAVE,
+ SILC_STATUS_OK, 0, 2, tmp, len);
- /* If the channel does not exist anymore we won't send anything */
- if (!i)
+ /* Remove client from channel */
+ if (!silc_server_remove_from_one_channel(server, sock, channel, id_entry,
+ TRUE))
+ /* If the channel does not exist anymore we won't send anything */
goto out;
- /* Re-generate channel key */
- silc_server_create_channel_key(server, channel, 0);
-
- /* Encode channel key payload to be distributed on the channel */
- packet =
- silc_channel_key_payload_encode(len, tmp,
- strlen(channel->channel_key->cipher->name),
- channel->channel_key->cipher->name,
- channel->key_len / 8, channel->key);
-
- /* If we are normal server then we will send it to our router. If we
- are router we will send it to all local servers that has clients on
- the channel */
- if (server->server_type == SILC_SERVER) {
- if (!server->standalone)
- silc_server_packet_send(server,
- cmd->server->router->connection,
- SILC_PACKET_CHANNEL_KEY, 0, packet->data,
- packet->len, FALSE);
- } else {
+ if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
+ /* Re-generate channel key */
+ if (!silc_server_create_channel_key(server, channel, 0))
+ goto out;
+ /* Send the channel key */
+ silc_server_send_channel_key(server, NULL, channel,
+ server->server_type == SILC_ROUTER ?
+ FALSE : !server->standalone);
}
- /* Send to locally connected clients on the channel */
- silc_server_packet_send_local_channel(server, channel,
- SILC_PACKET_CHANNEL_KEY, 0,
- packet->data, packet->len, FALSE);
-
- silc_buffer_free(packet);
- silc_free(id);
-
out:
+ silc_free(id);
silc_server_command_free(cmd);
}
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
SilcChannelEntry channel;
- SilcChannelID *id;
- SilcBuffer packet;
+ SilcChannelID *id = NULL;
+ SilcBuffer packet, idp;
unsigned char *channel_id;
- unsigned int channel_id_len;
+ SilcUInt32 channel_id_len;
SilcBuffer client_id_list;
SilcBuffer client_mode_list;
unsigned char lc[4];
- unsigned int list_count = 0;
- unsigned short ident = silc_command_get_ident(cmd->payload);
+ SilcUInt32 list_count = 0;
+ SilcUInt16 ident = silc_command_get_ident(cmd->payload);
+ char *channel_name;
- SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_USERS, cmd, 1, 1);
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_USERS, cmd, 1, 2);
/* Get Channel ID */
channel_id = silc_argument_get_arg_type(cmd->args, 1, &channel_id_len);
- if (!channel_id) {
+
+ /* Get channel name */
+ channel_name = silc_argument_get_arg_type(cmd->args, 2, NULL);
+
+ if (!channel_id && !channel_name) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
+ SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
goto out;
}
- id = silc_id_payload_parse_id(channel_id, channel_id_len);
- if (!id) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
- SILC_STATUS_ERR_NO_CHANNEL_ID);
- goto out;
+
+ if (channel_id) {
+ id = silc_id_payload_parse_id(channel_id, channel_id_len, NULL);
+ if (!id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
+ SILC_STATUS_ERR_BAD_CHANNEL_ID, 0);
+ goto out;
+ }
}
/* If we are server and we don't know about this channel we will send
the command to our router. If we know about the channel then we also
have the list of users already. */
- channel = silc_idlist_find_channel_by_id(server->local_list, id, NULL);
- if (!channel) {
- if (server->server_type == SILC_SERVER && !server->standalone &&
+ if (id)
+ channel = silc_idlist_find_channel_by_id(server->local_list, id, NULL);
+ else
+ channel = silc_idlist_find_channel_by_name(server->local_list,
+ channel_name, NULL);
+
+ if (!channel || (!server->standalone && (channel->disabled ||
+ !channel->users_resolved))) {
+ if (server->server_type != SILC_ROUTER && !server->standalone &&
!cmd->pending) {
SilcBuffer tmpbuf;
- silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
+ silc_command_set_ident(cmd->payload, ++server->cmd_ident);
tmpbuf = silc_command_payload_encode_payload(cmd->payload);
/* Send USERS command */
- silc_server_packet_send(server, server->router->connection,
+ silc_server_packet_send(server, SILC_PRIMARY_ROUTE(server),
SILC_PACKET_COMMAND, cmd->packet->flags,
tmpbuf->data, tmpbuf->len, TRUE);
/* Reprocess this packet after received reply */
silc_server_command_pending(server, SILC_COMMAND_USERS,
silc_command_get_ident(cmd->payload),
- silc_server_command_destructor,
silc_server_command_users,
silc_server_command_dup(cmd));
cmd->pending = TRUE;
silc_command_set_ident(cmd->payload, ident);
-
silc_buffer_free(tmpbuf);
silc_free(id);
- return;
+ goto out;
}
- /* We are router and we will check the global list as well. */
- channel = silc_idlist_find_channel_by_id(server->global_list, id, NULL);
+ /* Check the global list as well. */
+ if (id)
+ channel = silc_idlist_find_channel_by_id(server->global_list, id, NULL);
+ else
+ channel = silc_idlist_find_channel_by_name(server->global_list,
+ channel_name, NULL);
if (!channel) {
/* Channel really does not exist */
silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
- SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL,
+ 0);
+ goto out;
+ }
+ }
+
+ /* If the channel is private or secret do not send anything, unless the
+ user requesting this command is on the channel or is server */
+ if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
+ if (channel->mode & (SILC_CHANNEL_MODE_PRIVATE | SILC_CHANNEL_MODE_SECRET)
+ && !silc_server_client_on_channel(cmd->sock->user_data, channel,
+ NULL)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL,
+ 0);
goto out;
}
}
/* Get the users list */
- silc_server_get_users_on_channel(server, channel, &client_id_list,
- &client_mode_list, &list_count);
+ if (!silc_server_get_users_on_channel(server, channel, &client_id_list,
+ &client_mode_list, &list_count)) {
+ list_count = 0;
+ client_id_list = NULL;
+ client_mode_list = NULL;
+ }
/* List count */
SILC_PUT32_MSB(list_count, lc);
/* Send reply */
+ idp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
packet = silc_command_reply_payload_encode_va(SILC_COMMAND_USERS,
- SILC_STATUS_OK, 0, 4,
- 2, channel_id, channel_id_len,
+ SILC_STATUS_OK, 0, ident, 4,
+ 2, idp->data, idp->len,
3, lc, 4,
- 4, client_id_list->data,
- client_id_list->len,
- 5, client_mode_list->data,
- client_mode_list->len);
+ 4, client_id_list ?
+ client_id_list->data : NULL,
+ client_id_list ?
+ client_id_list->len : 0,
+ 5, client_mode_list ?
+ client_mode_list->data : NULL,
+ client_mode_list ?
+ client_mode_list->len : 0);
silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
packet->data, packet->len, FALSE);
+ silc_buffer_free(idp);
silc_buffer_free(packet);
- silc_buffer_free(client_id_list);
- silc_buffer_free(client_mode_list);
+ if (client_id_list)
+ silc_buffer_free(client_id_list);
+ if (client_mode_list)
+ silc_buffer_free(client_mode_list);
silc_free(id);
out:
silc_server_command_free(cmd);
}
+
+/* Server side of command GETKEY. This fetches the client's public key
+ from the server where to the client is connected. */
+
+SILC_SERVER_CMD_FUNC(getkey)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcBuffer packet;
+ SilcClientEntry client;
+ SilcServerEntry server_entry;
+ SilcClientID *client_id = NULL;
+ SilcServerID *server_id = NULL;
+ SilcIDPayload idp = NULL;
+ SilcUInt16 ident = silc_command_get_ident(cmd->payload);
+ unsigned char *tmp;
+ SilcUInt32 tmp_len;
+ SilcBuffer pk = NULL;
+ SilcIdType id_type;
+ SilcPublicKey public_key;
+
+ tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+ if (!tmp) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
+ goto out;
+ }
+ idp = silc_id_payload_parse(tmp, tmp_len);
+ if (!idp) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
+ goto out;
+ }
+
+ id_type = silc_id_payload_get_type(idp);
+ if (id_type == SILC_ID_CLIENT) {
+ client_id = silc_id_payload_get_id(idp);
+
+ /* If the client is not found from local list there is no chance it
+ would be locally connected client so send the command further. */
+ client = silc_idlist_find_client_by_id(server->local_list,
+ client_id, TRUE, NULL);
+ if (!client)
+ client = silc_idlist_find_client_by_id(server->global_list,
+ client_id, TRUE, NULL);
+
+ if ((!client && !cmd->pending && !server->standalone) ||
+ (client && !client->connection && !cmd->pending &&
+ !(client->mode & SILC_UMODE_DETACHED)) ||
+ (client && !client->data.public_key && !cmd->pending)) {
+ SilcBuffer tmpbuf;
+ SilcUInt16 old_ident;
+ SilcSocketConnection dest_sock;
+
+ dest_sock = silc_server_get_client_route(server, NULL, 0,
+ client_id, NULL, NULL);
+ if (!dest_sock)
+ goto out;
+
+ old_ident = silc_command_get_ident(cmd->payload);
+ silc_command_set_ident(cmd->payload, ++server->cmd_ident);
+ tmpbuf = silc_command_payload_encode_payload(cmd->payload);
+
+ silc_server_packet_send(server, dest_sock,
+ SILC_PACKET_COMMAND, cmd->packet->flags,
+ tmpbuf->data, tmpbuf->len, TRUE);
+
+ /* Reprocess this packet after received reply from router */
+ silc_server_command_pending(server, SILC_COMMAND_GETKEY,
+ silc_command_get_ident(cmd->payload),
+ silc_server_command_getkey,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+ silc_command_set_ident(cmd->payload, old_ident);
+ silc_buffer_free(tmpbuf);
+ goto out;
+ }
+
+ if (!client) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
+ SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
+ 0);
+ goto out;
+ }
+
+ /* The client is locally connected, just get the public key and
+ send it back. If they key does not exist then do not send it,
+ send just OK reply */
+ public_key = client->data.public_key;
+ if (public_key)
+ pk = silc_pkcs_public_key_payload_encode(public_key);
+ } else if (id_type == SILC_ID_SERVER) {
+ server_id = silc_id_payload_get_id(idp);
+
+ /* If the server is not found from local list there is no chance it
+ would be locally connected server so send the command further. */
+ server_entry = silc_idlist_find_server_by_id(server->local_list,
+ server_id, TRUE, NULL);
+ if (!server_entry)
+ server_entry = silc_idlist_find_server_by_id(server->global_list,
+ server_id, TRUE, NULL);
+
+ if (server_entry != server->id_entry &&
+ ((!server_entry && !cmd->pending && !server->standalone) ||
+ (server_entry && !server_entry->connection && !cmd->pending &&
+ !server->standalone) ||
+ (server_entry && !server_entry->data.public_key && !cmd->pending &&
+ !server->standalone))) {
+ SilcBuffer tmpbuf;
+ SilcUInt16 old_ident;
+
+ old_ident = silc_command_get_ident(cmd->payload);
+ silc_command_set_ident(cmd->payload, ++server->cmd_ident);
+ tmpbuf = silc_command_payload_encode_payload(cmd->payload);
+
+ silc_server_packet_send(server, SILC_PRIMARY_ROUTE(server),
+ SILC_PACKET_COMMAND, cmd->packet->flags,
+ tmpbuf->data, tmpbuf->len, TRUE);
+
+ /* Reprocess this packet after received reply from router */
+ silc_server_command_pending(server, SILC_COMMAND_GETKEY,
+ silc_command_get_ident(cmd->payload),
+ silc_server_command_getkey,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+ silc_command_set_ident(cmd->payload, old_ident);
+ silc_buffer_free(tmpbuf);
+ goto out;
+ }
+
+ if (!server_entry) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
+ SILC_STATUS_ERR_NO_SUCH_SERVER_ID,
+ 0);
+ goto out;
+ }
+
+ /* If they key does not exist then do not send it, send just OK reply */
+ public_key = (!server_entry->data.public_key ?
+ (server_entry == server->id_entry ? server->public_key :
+ NULL) : server_entry->data.public_key);
+ if (public_key)
+ pk = silc_pkcs_public_key_payload_encode(public_key);
+ } else {
+ goto out;
+ }
+
+ tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_GETKEY,
+ SILC_STATUS_OK, 0, ident, 2,
+ 2, tmp, tmp_len,
+ 3, pk ? pk->data : NULL,
+ pk ? pk->len : 0);
+ silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
+ packet->data, packet->len, FALSE);
+ silc_buffer_free(packet);
+
+ out:
+ if (idp)
+ silc_id_payload_free(idp);
+ silc_buffer_free(pk);
+ silc_free(client_id);
+ silc_free(server_id);
+ silc_server_command_free(cmd);
+}
+
+
+/* Private range commands, specific to this implementation */
+
+/* Server side command of CONNECT. Connects us to the specified remote
+ server or router. */
+
+SILC_SERVER_CMD_FUNC(connect)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ unsigned char *tmp, *host;
+ SilcUInt32 tmp_len;
+ SilcUInt32 port = SILC_PORT;
+
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT || !client)
+ goto out;
+
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_PRIV_CONNECT, cmd, 1, 2);
+
+ /* Check whether client has the permissions. */
+ if (!(client->mode & SILC_UMODE_SERVER_OPERATOR) &&
+ !(client->mode & SILC_UMODE_ROUTER_OPERATOR)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CONNECT,
+ SILC_STATUS_ERR_NO_SERVER_PRIV, 0);
+ goto out;
+ }
+
+ if (server->server_type == SILC_ROUTER && !server->backup_router &&
+ client->mode & SILC_UMODE_SERVER_OPERATOR) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CONNECT,
+ SILC_STATUS_ERR_NO_ROUTER_PRIV, 0);
+ goto out;
+ }
+
+ /* Get the remote server */
+ host = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+ if (!host) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CONNECT,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
+ goto out;
+ }
+
+ /* Get port */
+ tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+ if (tmp)
+ SILC_GET32_MSB(port, tmp);
+
+ /* Create the connection. It is done with timeout and is async. */
+ silc_server_create_connection(server, host, port);
+
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CONNECT,
+ SILC_STATUS_OK, 0);
+
+ out:
+ silc_server_command_free(cmd);
+}
+
+/* Server side command of CLOSE. Closes connection to a specified server. */
+
+SILC_SERVER_CMD_FUNC(close)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ SilcServerEntry server_entry;
+ SilcSocketConnection sock;
+ unsigned char *tmp;
+ SilcUInt32 tmp_len;
+ unsigned char *name;
+ SilcUInt32 port = SILC_PORT;
+
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT || !client)
+ goto out;
+
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_PRIV_CLOSE, cmd, 1, 2);
+
+ /* Check whether client has the permissions. */
+ if (!(client->mode & SILC_UMODE_SERVER_OPERATOR) &&
+ !(client->mode & SILC_UMODE_ROUTER_OPERATOR)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CLOSE,
+ SILC_STATUS_ERR_NO_SERVER_PRIV,
+ 0);
+ goto out;
+ }
+
+ /* Get the remote server */
+ name = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
+ if (!name) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CLOSE,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
+ 0);
+ goto out;
+ }
+
+ /* Get port */
+ tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+ if (tmp)
+ SILC_GET32_MSB(port, tmp);
+
+ server_entry = silc_idlist_find_server_by_conn(server->local_list,
+ name, port, FALSE, NULL);
+ if (!server_entry)
+ server_entry = silc_idlist_find_server_by_conn(server->global_list,
+ name, port, FALSE, NULL);
+ if (!server_entry) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CLOSE,
+ SILC_STATUS_ERR_NO_SERVER_ID, 0);
+ goto out;
+ }
+
+ if (server_entry == server->id_entry) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CLOSE,
+ SILC_STATUS_ERR_NO_SERVER_ID, 0);
+ goto out;
+ }
+
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CLOSE,
+ SILC_STATUS_OK, 0);
+
+ /* Close the connection to the server */
+ sock = (SilcSocketConnection)server_entry->connection;
+
+ /* If we shutdown primary router connection manually then don't trigger
+ any reconnect or backup router connections, by setting the router
+ to NULL here. */
+ if (server->router == server_entry) {
+ server->id_entry->router = NULL;
+ server->router = NULL;
+ server->standalone = TRUE;
+ }
+ silc_server_free_sock_user_data(server, sock, NULL);
+ silc_server_close_connection(server, sock);
+
+ out:
+ silc_server_command_free(cmd);
+}
+
+/* Server side command of SHUTDOWN. Shutdowns the server and closes all
+ active connections. */
+
+SILC_SERVER_CMD_FUNC(shutdown)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT || !client)
+ goto out;
+
+ SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_PRIV_SHUTDOWN, cmd, 0, 0);
+
+ /* Check whether client has the permission. */
+ if (!(client->mode & SILC_UMODE_SERVER_OPERATOR) &&
+ !(client->mode & SILC_UMODE_ROUTER_OPERATOR)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_SHUTDOWN,
+ SILC_STATUS_ERR_NO_SERVER_PRIV,
+ 0);
+ goto out;
+ }
+
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_SHUTDOWN,
+ SILC_STATUS_OK, 0);
+
+ /* Then, gracefully, or not, bring the server down. */
+ silc_server_stop(server);
+ exit(0);
+
+ out:
+ silc_server_command_free(cmd);
+}
projects / silc.git / blobdiff