Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
- Copyright (C) 1997 - 2000 Pekka Riikonen
+ Copyright (C) 1997 - 2001 Pekka Riikonen
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
silc_server_command_send_status_data(SilcServerCommandContext cmd,
SilcCommand command,
SilcCommandStatus status,
- unsigned int arg_type,
+ uint32 arg_type,
unsigned char *arg,
- unsigned int arg_len);
-static void silc_server_command_free(SilcServerCommandContext cmd);
+ uint32 arg_len);
+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(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(kick, KICK, SILC_CF_LAG_STRICT | SILC_CF_REG),
+ SILC_SERVER_CMD(ban, BAN, SILC_CF_LAG_STRICT | SILC_CF_REG),
SILC_SERVER_CMD(close, CLOSE,
SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
- SILC_SERVER_CMD(die, DIE, 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(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(names, NAMES, 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),
{ NULL, 0 },
};
-/* List of pending commands. */
-SilcServerCommandPending *silc_command_pending = NULL;
+#define SILC_SERVER_COMMAND_CHECK_ARGC(command, context, min, max) \
+do { \
+ uint32 _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; \
+ } \
+} while(0)
/* Returns TRUE if the connection is registered. Unregistered connections
usually cannot send commands hence the check. */
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;
+
+ /* Update access time */
+ client->last_command = time(NULL);
+
+ if (!(timeout->cmd->flags & SILC_CF_REG))
+ timeout->cmd->cb(timeout->ctx);
+ else if (silc_server_is_registered(timeout->ctx->server,
+ timeout->ctx->sock,
+ timeout->ctx,
+ timeout->cmd->cmd))
+ timeout->cmd->cb(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)
- goto out;
-
- /* Allow only one command executed in 2 seconds. */
- curtime = time(NULL);
- if (client->last_command && (curtime - client->last_command) < 2)
- goto out;
-
- /* Update access time */
- client->last_command = curtime;
- }
-#endif
-
/* Allocate command context. This must be free'd by the
command routine receiving it. */
- ctx = silc_calloc(1, sizeof(*ctx));
+ ctx = silc_server_command_alloc();
ctx->server = server;
- ctx->sock = sock;
- ctx->packet = packet; /* Save original packet */
+ ctx->sock = silc_socket_dup(sock);
+ 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);
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 == NULL) {
+ silc_server_command_send_status_reply(ctx, command,
+ SILC_STATUS_ERR_UNKNOWN_COMMAND);
+ 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 = silc_calloc(1, sizeof(*timeout));
+ int fast;
+
+ timeout->ctx = ctx;
+ timeout->cmd = cmd;
+
+ if (client->last_command && (time(NULL) - client->last_command) < 2) {
+ client->fast_command++;
+ fast = FALSE;
+ } else {
+ client->fast_command = ((client->fast_command - 1) <= 0 ? 0 :
+ client->fast_command--);
+ fast = TRUE;
}
- if (cmd == NULL) {
- SILC_LOG_ERROR(("Unknown command, packet dropped"));
- silc_free(ctx);
- goto out;
+ if (!fast && ((cmd->flags & SILC_CF_LAG_STRICT) ||
+ (client->fast_command > 5 && cmd->flags & SILC_CF_LAG)))
+ silc_task_register(server->timeout_queue, sock->sock,
+ silc_server_command_process_timeout,
+ (void *)timeout,
+ 2 - (time(NULL) - client->last_command), 0,
+ SILC_TASK_TIMEOUT,
+ SILC_TASK_PRI_NORMAL);
+ else
+ silc_task_register(server->timeout_queue, sock->sock,
+ silc_server_command_process_timeout,
+ (void *)timeout,
+ 0, 1,
+ SILC_TASK_TIMEOUT,
+ SILC_TASK_PRI_NORMAL);
+ return;
}
- out:
- silc_buffer_free(packet->buffer);
+ /* Execute for server */
+
+ if (!(cmd->flags & SILC_CF_REG))
+ cmd->cb(ctx);
+ else if (silc_server_is_registered(server, sock, ctx, cmd->cmd))
+ cmd->cb(ctx);
+}
+
+/* Allocate Command Context */
+
+SilcServerCommandContext silc_server_command_alloc()
+{
+ SilcServerCommandContext ctx = silc_calloc(1, sizeof(*ctx));
+ ctx->users++;
+ return ctx;
+}
+
+/* Free's the command context allocated before executing the command */
+
+void silc_server_command_free(SilcServerCommandContext ctx)
+{
+ ctx->users--;
+ SILC_LOG_DEBUG(("Command context %p refcnt %d->%d", ctx, ctx->users + 1,
+ ctx->users));
+ if (ctx->users < 1) {
+ if (ctx->payload)
+ silc_command_free_payload(ctx->payload);
+ if (ctx->packet)
+ silc_packet_context_free(ctx->packet);
+ if (ctx->sock)
+ silc_socket_free(ctx->sock); /* Decrease reference counter */
+ silc_free(ctx);
+ }
}
-/* Add new pending command to the list of pending commands. Currently
- pending commands are executed from command replies, thus we can
- execute any command after receiving some specific command reply.
+/* Duplicate Command Context by adding reference counter. The context won't
+ be free'd untill it hits zero. */
+
+SilcServerCommandContext
+silc_server_command_dup(SilcServerCommandContext ctx)
+{
+ ctx->users++;
+ SILC_LOG_DEBUG(("Command context %p refcnt %d->%d", ctx, ctx->users - 1,
+ ctx->users));
+ return ctx;
+}
- The argument `reply_cmd' is the command reply from where the callback
- function is to be called, thus, it IS NOT the command to be executed. */
+/* 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
+ the `callback' will be executed when received reply with command
+ identifier `ident'. */
-void silc_server_command_pending(SilcCommand reply_cmd,
+void silc_server_command_pending(SilcServer server,
+ SilcCommand reply_cmd,
+ uint16 ident,
+ SilcServerPendingDestructor destructor,
SilcCommandCb callback,
void *context)
{
- SilcServerCommandPending *reply, *r;
+ SilcServerCommandPending *reply;
reply = silc_calloc(1, sizeof(*reply));
reply->reply_cmd = reply_cmd;
+ reply->ident = ident;
reply->context = context;
reply->callback = callback;
+ reply->destructor = destructor;
+ silc_dlist_add(server->pending_commands, reply);
+}
- if (silc_command_pending == NULL) {
- silc_command_pending = reply;
- return;
- }
+/* Deletes pending command by reply command type. */
+
+void silc_server_command_pending_del(SilcServer server,
+ SilcCommand reply_cmd,
+ uint16 ident)
+{
+ SilcServerCommandPending *r;
- for (r = silc_command_pending; r; r = r->next) {
- if (r->next == NULL) {
- r->next = reply;
+ 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) {
+ silc_dlist_del(server->pending_commands, r);
break;
}
}
}
-/* Deletes pending command by reply command type. */
+/* Checks for pending commands and marks callbacks to be called from
+ the command reply function. Returns TRUE if there were pending command. */
-void silc_server_command_pending_del(SilcCommand reply_cmd)
+int silc_server_command_pending_check(SilcServer server,
+ SilcServerCommandReplyContext ctx,
+ SilcCommand command,
+ uint16 ident)
{
- SilcServerCommandPending *r, *tmp;
-
- if (silc_command_pending) {
- if (silc_command_pending->reply_cmd == reply_cmd) {
- silc_free(silc_command_pending);
- silc_command_pending = NULL;
- return;
- }
-
- for (r = silc_command_pending; r; r = r->next) {
- if (r->next && r->next->reply_cmd == reply_cmd) {
- tmp = r->next;
- r->next = r->next->next;
- silc_free(tmp);
- break;
- }
+ SilcServerCommandPending *r;
+
+ 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;
}
}
+
+ return FALSE;
}
-/* Free's the command context allocated before executing the command */
+/* 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_free(SilcServerCommandContext cmd)
+static void silc_server_command_destructor(void *context)
{
- if (cmd) {
- silc_command_free_payload(cmd->payload);
- silc_free(cmd);
- }
+ silc_server_command_free((SilcServerCommandContext)context);
}
/* Sends simple status message as command reply packet */
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,
+ 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);
silc_server_command_send_status_data(SilcServerCommandContext cmd,
SilcCommand command,
SilcCommandStatus status,
- unsigned int arg_type,
+ uint32 arg_type,
unsigned char *arg,
- unsigned int arg_len)
+ uint32 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,
+ 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);
}
-/* 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;
- SilcServer server = cmd->server;
- char *tmp, *nick = NULL, *server_name = NULL;
- unsigned int i, argc, count = 0, len, clients_count;
- int use_id = FALSE;
- SilcClientID *client_id = NULL;
- SilcBuffer packet, idp;
- SilcClientEntry *clients = NULL, entry;
- SilcCommandStatus status;
+ WHOIS Functions
- SILC_LOG_DEBUG(("Start"));
+******************************************************************************/
- argc = silc_argument_get_arg_num(cmd->args);
- if (argc < 1) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_WHOIS,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- goto out;
- }
- if (argc > 3) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_WHOIS,
- SILC_STATUS_ERR_TOO_MANY_PARAMS);
- goto out;
- }
+static int
+silc_server_command_whois_parse(SilcServerCommandContext cmd,
+ SilcClientID ***client_id,
+ uint32 *client_id_count,
+ char **nickname,
+ char **server_name,
+ int *count,
+ SilcCommand command)
+{
+ unsigned char *tmp;
+ uint32 len;
+ uint32 argc = silc_argument_get_arg_num(cmd->args);
+ int i, k;
/* If client ID is in the command it must be used instead of nickname */
- tmp = silc_argument_get_arg_type(cmd->args, 2, &len);
+ 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, "@");
- nick = silc_calloc(len + 1, sizeof(char));
- memcpy(nick, tmp, len);
- server_name = silc_calloc(strlen(tmp) - len, sizeof(char));
- memcpy(server_name, tmp + len + 1, strlen(tmp) - len - 1);
+ *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 {
- nick = strdup(tmp);
+ *nickname = strdup(tmp);
}
} else {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_WHOIS,
+ silc_server_command_send_status_reply(cmd, command,
SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- goto out;
+ return FALSE;
}
} else {
+ /* Command includes ID, we must use that. Also check whether the command
+ has more than one ID set - take them all. */
+
+ *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 > 1) {
+ for (k = 1, i = 1; i < argc; i++) {
+ tmp = silc_argument_get_arg_type(cmd->args, i + 3, &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++;
+ }
+ }
+ }
+
/* Command includes ID, use that */
- client_id = silc_id_payload_parse_id(tmp, len);
- use_id = TRUE;
}
/* Get the max count of reply messages allowed */
- if (argc == 3) {
- tmp = silc_argument_get_arg_type(cmd->args, 3, NULL);
- if (!tmp) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_WHOIS,
- SILC_STATUS_ERR_TOO_MANY_PARAMS);
- if (nick)
- silc_free(nick);
- if (server_name)
- silc_free(server_name);
- goto out;
- }
- count = atoi(tmp);
- }
+ tmp = silc_argument_get_arg_type(cmd->args, 2, NULL);
+ if (tmp)
+ *count = atoi(tmp);
+ else
+ *count = 0;
- /* Get all clients matching that nickname */
- if (!use_id) {
- clients = silc_idlist_get_clients_by_nickname(server->local_list,
- nick, server_name,
- &clients_count);
- } else {
- entry = silc_idlist_find_client_by_id(server->local_list, client_id);
- if (entry) {
- clients = silc_calloc(1, sizeof(*clients));
- clients[0] = entry;
- clients_count = 1;
- }
- }
+ return TRUE;
+}
- if (!clients) {
-
- /* If we are normal server and are connected to a router we will
- make global query from the router. */
- if (server->server_type == SILC_SERVER && !server->standalone) {
+static char
+silc_server_command_whois_check(SilcServerCommandContext cmd,
+ SilcClientEntry *clients,
+ uint32 clients_count)
+{
+ SilcServer server = cmd->server;
+ int i;
+ SilcClientEntry entry;
- goto ok;
- }
-
- /* If we are router then we will check our global list as well. */
- if (server->server_type == SILC_ROUTER) {
- entry =
- silc_idlist_find_client_by_nickname(server->global_list,
- nick, server_name);
- if (!entry) {
- silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
- SILC_STATUS_ERR_NO_SUCH_NICK,
- 3, tmp, strlen(tmp));
- goto out;
- }
- goto ok;
- }
+ for (i = 0; i < clients_count; i++) {
+ entry = clients[i];
- silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
- SILC_STATUS_ERR_NO_SUCH_NICK,
- 3, tmp, strlen(tmp));
- goto out;
+ if (!entry || entry->data.registered == FALSE)
+ continue;
+
+ if (!entry->nickname || !entry->username || !entry->userinfo) {
+ SilcBuffer tmpbuf;
+ uint16 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));
+ tmpbuf = silc_command_payload_encode_payload(cmd->payload);
+
+ /* 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);
+
+ silc_buffer_free(tmpbuf);
+ return FALSE;
+ }
}
- ok:
+ return TRUE;
+}
+
+static void
+silc_server_command_whois_send_reply(SilcServerCommandContext cmd,
+ SilcClientEntry *clients,
+ uint32 clients_count,
+ int count)
+{
+ SilcServer server = cmd->server;
+ char *tmp;
+ int i, k, len;
+ SilcBuffer packet, idp, channels;
+ SilcClientEntry entry;
+ SilcCommandStatus status;
+ uint16 ident = silc_command_get_ident(cmd->payload);
+ char nh[128], uh[128];
+ unsigned char idle[4], mode[4];
+ SilcSocketConnection hsock;
- /* XXX, works only for local server info */
+ len = 0;
+ for (i = 0; i < clients_count; i++)
+ if (clients[i]->data.registered)
+ len++;
status = SILC_STATUS_OK;
- if (clients_count > 1)
+ if (len > 1)
status = SILC_STATUS_LIST_START;
- for (i = 0; i < clients_count; i++) {
+ for (i = 0, k = 0; i < clients_count; i++) {
entry = clients[i];
- if (count && i - 1 == count)
- break;
+ if (entry->data.registered == FALSE) {
+ if (clients_count == 1) {
+ SilcBuffer idp = silc_id_payload_encode(entry->id, 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);
+ }
+ continue;
+ }
- if (clients_count > 2)
+ if (k >= 1)
status = SILC_STATUS_LIST_ITEM;
- if (clients_count > 1 && i == clients_count - 1)
+ if (clients_count > 1 && k == clients_count - 1)
status = SILC_STATUS_LIST_END;
+ if (count && k - 1 == count)
+ status = SILC_STATUS_LIST_END;
+
+ if (count && k - 1 > count)
+ break;
+
+ /* Sanity check, however these should never fail. However, as
+ this sanity check has been added here they have failed. */
+ if (!entry->nickname || !entry->username || !entry->userinfo)
+ continue;
+
/* Send WHOIS reply */
idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
tmp = silc_argument_get_first_arg(cmd->args, NULL);
- /* XXX */
- if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
- 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));
+ memset(uh, 0, sizeof(uh));
+ memset(nh, 0, sizeof(nh));
+ memset(idle, 0, sizeof(idle));
+
+ 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->servername) {
+ strncat(nh, entry->servername, strlen(entry->servername));
+ } else {
+ 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));
+ strncat(uh, entry->username, strlen(entry->username));
+ if (!strchr(entry->username, '@')) {
strncat(uh, "@", 1);
hsock = (SilcSocketConnection)entry->connection;
- len = hsock->hostname ? strlen(hsock->hostname) : strlen(hsock->ip);
- strncat(uh, hsock->hostname ? hsock->hostname : hsock->ip, len);
+ len = strlen(hsock->hostname);
+ strncat(uh, hsock->hostname, len);
+ }
+
+ channels = silc_server_get_client_channel_list(server, entry);
+ SILC_PUT32_MSB(entry->mode, mode);
+
+ if (entry->connection) {
SILC_PUT32_MSB((time(NULL) - entry->data.last_receive), idle);
-
- /* XXX */
- if (entry->userinfo)
- packet =
- silc_command_reply_payload_encode_va(SILC_COMMAND_WHOIS,
- status, 0, 5,
- 2, idp->data, idp->len,
- 3, nh, strlen(nh),
- 4, uh, strlen(uh),
- 5, entry->userinfo,
- strlen(entry->userinfo),
- 7, idle, 4);
- else
- packet =
- silc_command_reply_payload_encode_va(SILC_COMMAND_WHOIS,
- status, 0, 4,
- 2, idp->data, idp->len,
- 3, nh, strlen(nh),
- 4, uh, strlen(uh),
- 7, idle, 4);
-
- } else {
- /* XXX */
- packet =
- silc_command_reply_payload_encode_va(SILC_COMMAND_WHOIS,
- status, 0, 3,
- 2, idp->data, idp->len,
- 3, entry->nickname,
- strlen(entry->nickname),
- 4, tmp, strlen(tmp)); /* XXX */
}
+
+ if (channels)
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_WHOIS,
+ status, ident, 7,
+ 2, idp->data, idp->len,
+ 3, nh, strlen(nh),
+ 4, uh, strlen(uh),
+ 5, entry->userinfo,
+ strlen(entry->userinfo),
+ 6, channels->data,
+ channels->len,
+ 7, mode, 4,
+ 8, idle, 4);
+ else
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_WHOIS,
+ status, ident, 6,
+ 2, idp->data, idp->len,
+ 3, nh, strlen(nh),
+ 4, uh, strlen(uh),
+ 5, entry->userinfo,
+ strlen(entry->userinfo),
+ 7, mode, 4,
+ 8, idle, 4);
+
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);
- }
-
- silc_free(clients);
-
- if (client_id)
- silc_free(client_id);
+ if (channels)
+ silc_buffer_free(channels);
- out:
- silc_server_command_free(cmd);
-}
-
-SILC_SERVER_CMD_FUNC(whowas)
-{
+ k++;
+ }
}
-SILC_SERVER_CMD_FUNC(identify)
+static int
+silc_server_command_whois_from_client(SilcServerCommandContext cmd)
{
- SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
- char *tmp, *nick = NULL, *server_name = NULL;
- unsigned int argc, count = 0, len;
- int use_id = FALSE;
- SilcClientID *client_id = NULL;
- SilcClientEntry entry;
- SilcBuffer packet, idp;
-
- SILC_LOG_DEBUG(("Start"));
-
- argc = silc_argument_get_arg_num(cmd->args);
- if (argc < 1) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_IDENTIFY,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- goto out;
- }
- if (argc > 3) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_IDENTIFY,
- SILC_STATUS_ERR_TOO_MANY_PARAMS);
+ char *nick = NULL, *server_name = NULL;
+ int count = 0;
+ SilcClientEntry *clients = NULL, entry;
+ SilcClientID **client_id = NULL;
+ uint32 client_id_count = 0, clients_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;
+ uint16 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 WHOIS 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_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);
+
+ silc_buffer_free(tmpbuf);
+ ret = -1;
goto out;
}
- /* If client ID is in the command it must be used instead of nickname */
- tmp = silc_argument_get_arg_type(cmd->args, 2, &len);
- if (!tmp) {
-
- /* 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, "@");
- nick = silc_calloc(len + 1, sizeof(char));
- memcpy(nick, tmp, len);
- server_name = silc_calloc(strlen(tmp) - len, sizeof(char));
- memcpy(server_name, tmp + len + 1, strlen(tmp) - len - 1);
- } else {
- nick = strdup(tmp);
+ /* 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;
}
- } else {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_IDENTIFY,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- goto out;
}
} else {
- /* Command includes ID, use that */
- client_id = silc_id_payload_parse_id(tmp, len);
- use_id = TRUE;
+ if (!silc_idlist_get_clients_by_hash(server->local_list,
+ nick, server->md5hash,
+ &clients, &clients_count))
+ silc_idlist_get_clients_by_nickname(server->local_list,
+ nick, server_name,
+ &clients, &clients_count);
}
-
- /* Get the max count of reply messages allowed */
- if (argc == 3) {
- tmp = silc_argument_get_arg_type(cmd->args, 3, NULL);
- if (!tmp) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_IDENTIFY,
- SILC_STATUS_ERR_TOO_MANY_PARAMS);
- goto out;
+
+ /* Check global list as well */
+ 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;
+ }
}
- count = atoi(tmp);
- }
-
- /* Find client */
- if (!use_id) {
- entry = silc_idlist_find_client_by_nickname(server->local_list,
- nick, NULL);
- if (!entry)
- entry = silc_idlist_find_client_by_hash(server->global_list,
- nick, server->md5hash);
} else {
- entry = silc_idlist_find_client_by_id(server->local_list, client_id);
+ if (!silc_idlist_get_clients_by_hash(server->global_list,
+ nick, server->md5hash,
+ &clients, &clients_count))
+ silc_idlist_get_clients_by_nickname(server->global_list,
+ nick, server_name,
+ &clients, &clients_count);
}
-
- /* If client was not found and if we are normal server and are connected
- to a router we will make global query from the router. */
- if (!entry && server->server_type == SILC_SERVER && !server->standalone &&
- !cmd->pending) {
- SilcBuffer buffer = cmd->packet->buffer;
-
- SILC_LOG_DEBUG(("Requesting identify from router"));
-
- /* Send IDENTIFY command to our router */
- silc_buffer_push(buffer, buffer->data - buffer->head);
- silc_server_packet_forward(server, (SilcSocketConnection)
- server->id_entry->router->connection,
- buffer->data, buffer->len, TRUE);
- return;
+
+ 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;
}
- /* If we are router we have checked our local list by nickname and our
- global list by hash so far. It is possible that the client is still not
- found and we'll check it from local list by hash. */
- if (!entry && server->server_type == SILC_ROUTER)
- entry = silc_idlist_find_client_by_hash(server->local_list,
- nick, server->md5hash);
-
- if (!entry) {
- /* The client definitely does not exist */
- silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
- SILC_STATUS_ERR_NO_SUCH_NICK,
- 3, tmp, strlen(tmp));
- goto out;
- }
-
- /* Send IDENTIFY reply */
- idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
- tmp = silc_argument_get_first_arg(cmd->args, NULL);
- packet = silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
- SILC_STATUS_OK, 0, 2,
- 2, idp->data, idp->len,
- 3, nick, strlen(nick));
- if (cmd->packet->flags & SILC_PACKET_FLAG_FORWARDED) {
- void *id = silc_id_str2id(cmd->packet->src_id, cmd->packet->src_id_type);
- silc_server_packet_send_dest(server, cmd->sock,
- SILC_PACKET_COMMAND_REPLY, 0,
- id, cmd->packet->src_id_type,
- packet->data, packet->len, FALSE);
- silc_free(id);
- } else {
- silc_server_packet_send(server, cmd->sock,
- SILC_PACKET_COMMAND_REPLY, 0,
- packet->data, packet->len, FALSE);
+ /* 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;
}
- silc_buffer_free(packet);
- silc_buffer_free(idp);
- if (client_id)
- silc_free(client_id);
+ /* Send the command reply to the client */
+ silc_server_command_whois_send_reply(cmd, clients, clients_count,
+ count);
out:
- if (nick)
+ 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);
- silc_server_command_free(cmd);
+
+ 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;
+ SilcClientEntry *clients = NULL, entry;
+ SilcClientID **client_id = NULL;
+ uint32 client_id_count = 0, clients_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 {
+ if (!silc_idlist_get_clients_by_hash(server->local_list,
+ nick, server->md5hash,
+ &clients, &clients_count))
+ silc_idlist_get_clients_by_nickname(server->local_list,
+ nick, server_name,
+ &clients, &clients_count);
+ }
+
+ /* If we are router we will check our global list as well. */
+ if (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 {
+ if (!silc_idlist_get_clients_by_hash(server->global_list,
+ nick, server->md5hash,
+ &clients, &clients_count))
+ silc_idlist_get_clients_by_nickname(server->global_list,
+ nick, server_name,
+ &clients, &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;
+ }
+
+ /* 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,
+ 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;
+}
+
+/* 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);
+}
+
+/******************************************************************************
+
+ WHOWAS Functions
+
+******************************************************************************/
+
+static int
+silc_server_command_whowas_parse(SilcServerCommandContext cmd,
+ char **nickname,
+ char **server_name,
+ int *count)
+{
+ unsigned char *tmp;
+ uint32 len;
+
+ tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
+ if (!tmp) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_WHOWAS,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ return FALSE;
+ }
+
+ /* Get the nickname@server string and parse it. */
+ 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);
+ }
+ /* 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;
+
+ return TRUE;
+}
+
+static char
+silc_server_command_whowas_check(SilcServerCommandContext cmd,
+ SilcClientEntry *clients,
+ uint32 clients_count)
+{
+ SilcServer server = cmd->server;
+ int i;
+ SilcClientEntry entry;
+
+ for (i = 0; i < clients_count; i++) {
+ entry = clients[i];
+
+ if (!entry->nickname || !entry->username) {
+ SilcBuffer tmpbuf;
+ uint16 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));
+ tmpbuf = silc_command_payload_encode_payload(cmd->payload);
+
+ /* Send WHOWAS 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_WHOWAS,
+ silc_command_get_ident(cmd->payload),
+ silc_server_command_destructor,
+ silc_server_command_whowas,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+
+ silc_command_set_ident(cmd->payload, old_ident);
+
+ silc_buffer_free(tmpbuf);
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+static void
+silc_server_command_whowas_send_reply(SilcServerCommandContext cmd,
+ SilcClientEntry *clients,
+ uint32 clients_count)
+{
+ SilcServer server = cmd->server;
+ char *tmp;
+ int i, count = 0, len;
+ SilcBuffer packet, idp;
+ SilcClientEntry entry = NULL;
+ SilcCommandStatus status;
+ uint16 ident = silc_command_get_ident(cmd->payload);
+ char found = FALSE;
+ char nh[256], uh[256];
+
+ status = SILC_STATUS_OK;
+ if (clients_count > 1)
+ status = SILC_STATUS_LIST_START;
+
+ for (i = 0; i < clients_count; i++) {
+ entry = clients[i];
+
+ /* We will take only clients that are not valid anymore. They are the
+ ones that are not registered anymore but still have a ID. They
+ have disconnected us, and thus valid for WHOWAS. */
+ if (entry->data.registered == TRUE)
+ continue;
+ if (entry->id == NULL)
+ continue;
+
+ if (count && i - 1 == count)
+ break;
+
+ found = TRUE;
+
+ if (clients_count > 2)
+ status = SILC_STATUS_LIST_ITEM;
+
+ if (clients_count > 1 && i == clients_count - 1)
+ 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)
+ continue;
+
+ /* Send WHOWAS reply */
+ idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
+ tmp = silc_argument_get_first_arg(cmd->args, NULL);
+
+ memset(uh, 0, sizeof(uh));
+ memset(nh, 0, sizeof(nh));
+
+ strncat(nh, entry->nickname, strlen(entry->nickname));
+ if (!strchr(entry->nickname, '@')) {
+ strncat(nh, "@", 1);
+ if (entry->servername) {
+ strncat(nh, entry->servername, strlen(entry->servername));
+ } else {
+ 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);
+ strcat(uh, "*private*");
+ }
+
+ if (entry->userinfo)
+ packet =
+ silc_command_reply_payload_encode_va(SILC_COMMAND_WHOWAS,
+ status, ident, 4,
+ 2, idp->data, idp->len,
+ 3, nh, strlen(nh),
+ 4, uh, strlen(uh),
+ 5, entry->userinfo,
+ strlen(entry->userinfo));
+ else
+ packet =
+ silc_command_reply_payload_encode_va(SILC_COMMAND_WHOWAS,
+ status, 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);
+ }
+
+ if (found == FALSE && entry)
+ silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOWAS,
+ SILC_STATUS_ERR_NO_SUCH_NICK,
+ 3, entry->nickname,
+ strlen(entry->nickname));
+}
+
+static int
+silc_server_command_whowas_from_client(SilcServerCommandContext cmd)
+{
+ SilcServer server = cmd->server;
+ char *nick = NULL, *server_name = NULL;
+ int count = 0;
+ SilcClientEntry *clients = NULL;
+ uint32 clients_count = 0;
+ int ret = 0;
+
+ /* Protocol dictates that we must always send the received WHOWAS 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;
+ uint16 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 WHOWAS 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_WHOWAS,
+ silc_command_get_ident(cmd->payload),
+ silc_server_command_destructor,
+ silc_server_command_whowas,
+ 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 whowas request */
+ if (!silc_server_command_whowas_parse(cmd, &nick, &server_name, &count))
+ return 0;
+
+ /* Get all clients matching that nickname from local list */
+ if (!silc_idlist_get_clients_by_nickname(server->local_list,
+ nick, server_name,
+ &clients, &clients_count))
+ silc_idlist_get_clients_by_hash(server->local_list,
+ nick, server->md5hash,
+ &clients, &clients_count);
+
+ /* Check global list as well */
+ if (!silc_idlist_get_clients_by_nickname(server->global_list,
+ nick, server_name,
+ &clients, &clients_count))
+ silc_idlist_get_clients_by_hash(server->global_list,
+ nick, server->md5hash,
+ &clients, &clients_count);
+
+ if (!silc_server_command_whowas_check(cmd, clients, clients_count)) {
+ ret = -1;
+ goto out;
+ }
+
+ /* Send the command reply to the client */
+ silc_server_command_whowas_send_reply(cmd, clients, clients_count);
+
+ out:
+ if (clients)
+ silc_free(clients);
+ if (nick)
+ silc_free(nick);
+ if (server_name)
+ silc_free(server_name);
+
+ return ret;
+}
+
+static int
+silc_server_command_whowas_from_server(SilcServerCommandContext cmd)
+{
+ SilcServer server = cmd->server;
+ char *nick = NULL, *server_name = NULL;
+ int count = 0;
+ SilcClientEntry *clients = NULL;
+ uint32 clients_count = 0;
+ int ret = 0;
+
+ /* Parse the whowas request */
+ if (!silc_server_command_whowas_parse(cmd, &nick, &server_name, &count))
+ return 0;
+
+ /* Process the command request. Let's search for the requested client and
+ send reply to the requesting server. */
+
+ if (!silc_idlist_get_clients_by_nickname(server->local_list,
+ nick, server_name,
+ &clients, &clients_count))
+ silc_idlist_get_clients_by_hash(server->local_list,
+ nick, server->md5hash,
+ &clients, &clients_count);
+
+ /* If we are router we will check our global list as well. */
+ if (server->server_type == SILC_ROUTER) {
+ if (!silc_idlist_get_clients_by_nickname(server->global_list,
+ nick, server_name,
+ &clients, &clients_count))
+ silc_idlist_get_clients_by_hash(server->global_list,
+ nick, server->md5hash,
+ &clients, &clients_count);
+ }
+
+ if (!clients) {
+ /* Such a client really does not exist in the SILC network. */
+ silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOWAS,
+ SILC_STATUS_ERR_NO_SUCH_NICK,
+ 3, nick, strlen(nick));
+ goto out;
+ }
+
+ /* Send the command reply to the client */
+ silc_server_command_whowas_send_reply(cmd, clients, clients_count);
+
+ out:
+ if (clients)
+ silc_free(clients);
+ if (nick)
+ silc_free(nick);
+ if (server_name)
+ silc_free(server_name);
+
+ return ret;
+}
+
+/* Server side of command WHOWAS. */
+
+SILC_SERVER_CMD_FUNC(whowas)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ int ret = 0;
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_WHOWAS, cmd, 1, 2);
+
+ if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT)
+ ret = silc_server_command_whowas_from_client(cmd);
+ else if ((cmd->sock->type == SILC_SOCKET_TYPE_SERVER) ||
+ (cmd->sock->type == SILC_SOCKET_TYPE_ROUTER))
+ ret = silc_server_command_whowas_from_server(cmd);
+
+ if (!ret)
+ silc_server_command_free(cmd);
+}
+
+/******************************************************************************
+
+ 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,
+ uint32 clients_count)
+{
+ SilcServer server = cmd->server;
+ int i;
+ SilcClientEntry entry;
+
+ for (i = 0; i < clients_count; i++) {
+ entry = clients[i];
+
+ if (!entry || entry->data.registered == FALSE)
+ continue;
+
+ if (!entry->nickname) {
+ SilcBuffer tmpbuf;
+ uint16 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,
+ uint32 clients_count,
+ int count)
+{
+ SilcServer server = cmd->server;
+ char *tmp;
+ int i, k, len;
+ SilcBuffer packet, idp;
+ SilcClientEntry entry;
+ SilcCommandStatus status;
+ uint16 ident = silc_command_get_ident(cmd->payload);
+ char nh[256], uh[256];
+ SilcSocketConnection hsock;
+
+ len = 0;
+ for (i = 0; i < clients_count; i++)
+ if (clients[i]->data.registered)
+ len++;
+
+ status = SILC_STATUS_OK;
+ if (len > 1)
+ status = SILC_STATUS_LIST_START;
+
+ for (i = 0, k = 0; i < clients_count; i++) {
+ entry = clients[i];
+
+ if (entry->data.registered == FALSE) {
+ if (clients_count == 1) {
+ SilcBuffer idp = silc_id_payload_encode(entry->id, 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);
+ }
+ continue;
+ }
+
+ if (k >= 1)
+ status = SILC_STATUS_LIST_ITEM;
+
+ if (clients_count > 1 && k == clients_count - 1)
+ status = SILC_STATUS_LIST_END;
+
+ if (count && k - 1 == count)
+ status = SILC_STATUS_LIST_END;
+
+ if (count && k - 1 > count)
+ break;
+
+ /* Send IDENTIFY reply */
+ idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
+ tmp = silc_argument_get_first_arg(cmd->args, NULL);
+
+ memset(uh, 0, sizeof(uh));
+ memset(nh, 0, sizeof(nh));
+
+ strncat(nh, entry->nickname, strlen(entry->nickname));
+ if (!strchr(entry->nickname, '@')) {
+ strncat(nh, "@", 1);
+ if (entry->servername) {
+ strncat(nh, entry->servername, strlen(entry->servername));
+ } else {
+ 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,
+ status, 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,
+ status, 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);
+
+ k++;
+ }
+}
+
+static int
+silc_server_command_identify_from_client(SilcServerCommandContext cmd)
+{
+ SilcServer server = cmd->server;
+ char *nick = NULL, *server_name = NULL;
+ int count = 0;
+ SilcClientEntry *clients = NULL, entry;
+ SilcClientID **client_id = NULL;
+ uint32 client_id_count = 0, clients_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;
+ uint16 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 {
+ if (!silc_idlist_get_clients_by_hash(server->local_list,
+ nick, server->md5hash,
+ &clients, &clients_count))
+ silc_idlist_get_clients_by_nickname(server->local_list,
+ nick, server_name,
+ &clients, &clients_count);
+ }
+
+ /* Check global list as well */
+ 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 {
+ if (!silc_idlist_get_clients_by_hash(server->global_list,
+ nick, server->md5hash,
+ &clients, &clients_count))
+ silc_idlist_get_clients_by_nickname(server->global_list,
+ nick, server_name,
+ &clients, &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,
+ 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;
+ SilcClientEntry *clients = NULL, entry;
+ SilcClientID **client_id = NULL;
+ uint32 client_id_count = 0, clients_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 {
+ if (!silc_idlist_get_clients_by_hash(server->local_list,
+ nick, server->md5hash,
+ &clients, &clients_count))
+ silc_idlist_get_clients_by_nickname(server->local_list,
+ nick, server_name,
+ &clients, &clients_count);
+ }
+
+ /* If we are router we will check our global list as well. */
+ if (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 {
+ if (!silc_idlist_get_clients_by_hash(server->global_list,
+ nick, server->md5hash,
+ &clients, &clients_count))
+ silc_idlist_get_clients_by_nickname(server->global_list,
+ nick, server_name,
+ &clients, &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, 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. */
SilcBuffer packet, nidp, oidp;
SilcClientID *new_id;
char *nick;
+ uint16 ident = silc_command_get_ident(cmd->payload);
- SILC_LOG_DEBUG(("Start"));
-
- /* Check number of arguments */
- if (silc_argument_get_arg_num(cmd->args) < 1) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_NICK,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
goto out;
- }
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_NICK, cmd, 1, 1);
/* Check nickname */
nick = silc_argument_get_arg_type(cmd->args, 1, NULL);
goto out;
}
+ if (strlen(nick) > 128)
+ nick[127] = '\0';
+
/* 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 (cmd->server->server_type == SILC_SERVER && !cmd->server->standalone)
- silc_server_send_replace_id(server, server->id_entry->router->connection,
- FALSE, client->id,
- SILC_ID_CLIENT, SILC_ID_CLIENT_LEN,
- new_id, SILC_ID_CLIENT, SILC_ID_CLIENT_LEN);
-
- /* If we are router we have to distribute the new Client ID to all
- routers in SILC. */
- if (cmd->server->server_type == SILC_ROUTER && !cmd->server->standalone)
- silc_server_send_replace_id(server, server->id_entry->router->connection,
- TRUE, client->id,
- SILC_ID_CLIENT, SILC_ID_CLIENT_LEN,
- new_id, SILC_ID_CLIENT, SILC_ID_CLIENT_LEN);
+ 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,
/* Update client cache */
silc_idcache_add(server->local_list->clients, client->nickname,
- SILC_ID_CLIENT, client->id, (void *)client, TRUE);
+ strlen(client->nickname), SILC_ID_CLIENT, client->id,
+ (void *)client, TRUE, FALSE);
nidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
- /* Send NICK_CHANGE notify */
- silc_server_send_notify_on_channels(server, client,
+ /* Send NICK_CHANGE notify to the client's channels */
+ silc_server_send_notify_on_channels(server, NULL, 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,
+ SILC_STATUS_OK, ident, 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_server_command_free(cmd);
}
+/* Sends the LIST command reply */
+
+static void
+silc_server_command_list_send_reply(SilcServerCommandContext cmd,
+ SilcChannelEntry *lch,
+ uint32 lch_count,
+ SilcChannelEntry *gch,
+ uint32 gch_count)
+{
+ int i;
+ SilcBuffer packet, idp;
+ SilcChannelEntry entry;
+ SilcCommandStatus status;
+ uint16 ident = silc_command_get_ident(cmd->payload);
+ char *topic;
+ unsigned char usercount[4];
+ uint32 users;
+
+ for (i = 0; i < lch_count; i++)
+ if (lch[i]->mode & SILC_CHANNEL_MODE_SECRET)
+ lch[i] = NULL;
+ for (i = 0; i < gch_count; i++)
+ if (gch[i]->mode & SILC_CHANNEL_MODE_SECRET)
+ gch[i] = NULL;
+
+ status = SILC_STATUS_OK;
+ if ((lch_count + gch_count) > 1)
+ status = SILC_STATUS_LIST_START;
+
+ /* Local list */
+ for (i = 0; i < lch_count; i++) {
+ entry = lch[i];
+
+ if (!entry)
+ continue;
+
+ if (i >= 1)
+ status = SILC_STATUS_LIST_ITEM;
+
+ if (i == lch_count - 1 && gch_count)
+ break;
+ if (lch_count > 1 && i == lch_count - 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 = silc_list_count(entry->user_list);
+ SILC_PUT32_MSB(users, usercount);
+ }
+
+ /* Send the reply */
+ if (topic)
+ packet =
+ silc_command_reply_payload_encode_va(SILC_COMMAND_LIST,
+ status, ident, 4,
+ 2, idp->data, idp->len,
+ 3, entry->channel_name,
+ strlen(entry->channel_name),
+ 4, topic, strlen(topic),
+ 5, usercount, 4);
+ else
+ packet =
+ silc_command_reply_payload_encode_va(SILC_COMMAND_LIST,
+ status, ident, 3,
+ 2, idp->data, idp->len,
+ 3, entry->channel_name,
+ strlen(entry->channel_name),
+ 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);
+ }
+
+ status = i ? SILC_STATUS_LIST_ITEM : SILC_STATUS_OK;
+
+ /* Global list */
+ for (i = 0; i < gch_count; i++) {
+ entry = gch[i];
+
+ if (!entry)
+ continue;
+
+ if (i >= 1)
+ status = SILC_STATUS_LIST_ITEM;
+
+ if (gch_count > 1 && i == lch_count - 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 = silc_list_count(entry->user_list);
+ SILC_PUT32_MSB(users, usercount);
+ }
+
+ /* Send the reply */
+ if (topic)
+ packet =
+ silc_command_reply_payload_encode_va(SILC_COMMAND_LIST,
+ status, ident, 4,
+ 2, idp->data, idp->len,
+ 3, entry->channel_name,
+ strlen(entry->channel_name),
+ 4, topic, strlen(topic),
+ 5, usercount, 4);
+ else
+ packet =
+ silc_command_reply_payload_encode_va(SILC_COMMAND_LIST,
+ status, ident, 3,
+ 2, idp->data, idp->len,
+ 3, entry->channel_name,
+ strlen(entry->channel_name),
+ 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);
+ }
+}
+
+/* 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;
+ SilcChannelID *channel_id = NULL;
+ unsigned char *tmp;
+ uint32 tmp_len;
+ SilcChannelEntry *lchannels = NULL, *gchannels = NULL;
+ uint32 lch_count = 0, gch_count = 0;
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_LIST, cmd, 0, 2);
+
+ /* 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);
+ if (!channel_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_LIST,
+ SILC_STATUS_ERR_NO_CHANNEL_ID);
+ goto out;
+ }
+ }
+
+ /* Get the channels from local list */
+ lchannels = silc_idlist_get_channels(server->local_list, channel_id,
+ &lch_count);
+
+ /* Get the channels from global list if we are router */
+ if (server->server_type == SILC_ROUTER)
+ gchannels = silc_idlist_get_channels(server->global_list, channel_id,
+ &gch_count);
+
+ /* Send the reply */
+ silc_server_command_list_send_reply(cmd, lchannels, lch_count,
+ gchannels, gch_count);
+
+ out:
+ silc_server_command_free(cmd);
}
/* Server side of TOPIC command. Sets topic for channel and/or returns
SilcChannelClientEntry chl;
SilcBuffer packet, idp;
unsigned char *tmp;
- unsigned int argc, tmp_len;
+ uint32 argc, tmp_len;
+ uint16 ident = silc_command_get_ident(cmd->payload);
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_TOPIC, cmd, 1, 2);
- /* Check number of arguments */
argc = silc_argument_get_arg_num(cmd->args);
- if (argc < 1) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- goto out;
- }
- if (argc > 2) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
- SILC_STATUS_ERR_TOO_MANY_PARAMS);
- goto out;
- }
/* Get Channel ID */
tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
goto out;
}
channel_id = silc_id_payload_parse_id(tmp, tmp_len);
-
- /* Check whether the channel exists */
- channel = silc_idlist_find_channel_by_id(server->local_list, channel_id);
- if (!channel) {
+ if (!channel_id) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
- SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ SILC_STATUS_ERR_NO_CHANNEL_ID);
goto out;
}
+ /* Check whether the channel exists */
+ 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_TOPIC,
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ goto out;
+ }
+ }
+
if (argc > 1) {
/* Get the topic */
tmp = silc_argument_get_arg_type(cmd->args, 2, NULL);
/* 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) {
- if (chl->mode == SILC_CHANNEL_UMODE_NONE) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
- SILC_STATUS_ERR_NO_CHANNEL_PRIV);
- goto out;
- } else {
- break;
- }
+ while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END)
+ if (chl->client == client)
+ break;
+
+ 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;
}
}
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, 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));
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,
+ SILC_STATUS_OK, ident, 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,
+ SILC_STATUS_OK, ident, 1,
2, idp->data, idp->len);
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;
- unsigned char *tmp;
- unsigned int argc, len;
+ SilcChannelID *channel_id = NULL;
+ SilcIDListData idata;
+ SilcBuffer idp, idp2, packet;
+ unsigned char *tmp, *add, *del;
+ uint32 len;
+ uint16 ident = silc_command_get_ident(cmd->payload);
- /* Check number of arguments */
- argc = silc_argument_get_arg_num(cmd->args);
- if (argc < 1) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- goto out;
- }
- if (argc > 2) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
- SILC_STATUS_ERR_TOO_MANY_PARAMS);
- goto out;
- }
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_INVITE, cmd, 1, 4);
- /* Get destination ID */
+ /* Get Channel 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);
+ SILC_STATUS_ERR_NO_CHANNEL_ID);
goto out;
}
- dest_id = silc_id_payload_parse_id(tmp, len);
-
- /* Get Channel ID */
- tmp = silc_argument_get_arg_type(cmd->args, 2, &len);
- if (!tmp) {
+ channel_id = silc_id_payload_parse_id(tmp, len);
+ if (!channel_id) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
SILC_STATUS_ERR_NO_CHANNEL_ID);
goto out;
}
- channel_id = silc_id_payload_parse_id(tmp, len);
- /* Check whether the channel exists */
- channel = silc_idlist_find_channel_by_id(server->local_list, channel_id);
+ /* Get the 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_INVITE,
- SILC_STATUS_ERR_NO_SUCH_CHANNEL);
- goto out;
+ channel = silc_idlist_find_channel_by_id(server->global_list,
+ channel_id, NULL);
+ if (!channel) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ goto out;
+ }
}
/* Check whether the sender of this command is on the channel. */
/* 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;
-
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) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
- SILC_STATUS_ERR_NO_CHANNEL_PRIV);
+ SILC_STATUS_ERR_NO_CHANNEL_PRIV);
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);
- if (dest)
- dest_sock = (SilcSocketConnection)dest->connection;
- else
- dest_sock = silc_server_get_route(server, dest_id, SILC_ID_CLIENT);
+ /* Get destination client ID */
+ tmp = silc_argument_get_arg_type(cmd->args, 2, &len);
+ if (tmp) {
+ char invite[512];
- /* 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 (NAMES 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;
+ 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;
+ }
+
+ /* Get the client entry */
+ dest = silc_server_get_client_resolve(server, dest_id);
+ if (!dest) {
+ if (server->server_type == SILC_ROUTER) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
+ SILC_STATUS_ERR_NO_SUCH_CLIENT_ID);
+ 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_destructor,
+ silc_server_command_invite,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+ silc_free(channel_id);
+ silc_free(dest_id);
+ return;
+ }
+
+ /* Check whether the requested client is already on the channel. */
+ 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;
+ }
+
+ /* Get route to the client */
+ dest_sock = silc_server_get_client_route(server, NULL, 0, dest_id, &idata);
+
+ memset(invite, 0, sizeof(invite));
+ strncat(invite, dest->nickname, strlen(dest->nickname));
+ strncat(invite, "!", 1);
+ strncat(invite, dest->username, strlen(dest->username));
+ if (!strchr(dest->username, '@')) {
+ strncat(invite, "@", 1);
+ strncat(invite, cmd->sock->hostname, strlen(cmd->sock->hostname));
+ }
+
+ len = strlen(invite);
+ if (!channel->invite_list)
+ channel->invite_list = silc_calloc(len + 2,
+ sizeof(*channel->invite_list));
+ else
+ channel->invite_list = silc_realloc(channel->invite_list,
+ sizeof(*channel->invite_list) *
+ (len +
+ strlen(channel->invite_list) + 2));
+ strncat(channel->invite_list, invite, len);
+ strncat(channel->invite_list, ",", 1);
+
+ /* Send notify to the client that is invited to the channel */
+ 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);
}
- sidp = silc_id_payload_encode(sender->id, SILC_ID_CLIENT);
+ /* Add the client to the invite list of the channel */
+ add = silc_argument_get_arg_type(cmd->args, 3, &len);
+ if (add) {
+ if (!channel->invite_list)
+ channel->invite_list = silc_calloc(len + 2,
+ sizeof(*channel->invite_list));
+ else
+ channel->invite_list = silc_realloc(channel->invite_list,
+ sizeof(*channel->invite_list) *
+ (len +
+ strlen(channel->invite_list) + 2));
+ if (add[len - 1] == ',')
+ add[len - 1] = '\0';
+
+ strncat(channel->invite_list, add, len);
+ strncat(channel->invite_list, ",", 1);
+ }
- /* Send notify to the client that is invited to the channel */
- silc_server_send_notify_dest(server, dest_sock, dest_id, SILC_ID_CLIENT,
- SILC_NOTIFY_TYPE_INVITE, 2,
- sidp->data, sidp->len, tmp, len);
+ /* Get the invite to be removed and remove it from the list */
+ del = silc_argument_get_arg_type(cmd->args, 4, &len);
+ if (del && channel->invite_list) {
+ char *start, *end, *n;
- /* Send command reply */
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
- SILC_STATUS_OK);
+ if (!strncmp(channel->invite_list, del,
+ strlen(channel->invite_list) - 1)) {
+ silc_free(channel->invite_list);
+ channel->invite_list = NULL;
+ } else {
+ start = strstr(channel->invite_list, del);
+ if (start && strlen(start) >= len) {
+ end = start + len;
+ n = silc_calloc(strlen(channel->invite_list) - len, sizeof(*n));
+ strncat(n, channel->invite_list, start - channel->invite_list);
+ strncat(n, end + 1, ((channel->invite_list +
+ strlen(channel->invite_list)) - end) - 1);
+ silc_free(channel->invite_list);
+ channel->invite_list = n;
+ }
+ }
+ }
+
+ /* Send notify to the primary router */
+ if (!server->standalone)
+ silc_server_send_notify_invite(server, server->router->connection,
+ server->server_type == SILC_ROUTER ?
+ TRUE : FALSE, channel,
+ sender->id, SILC_ID_CLIENT_LEN,
+ add, del);
- silc_buffer_free(sidp);
+ /* Send command reply */
+ tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_INVITE,
+ SILC_STATUS_OK, ident, 2,
+ 2, tmp, len,
+ 3, channel->invite_list,
+ channel->invite_list ?
+ strlen(channel->invite_list) :
+ 0);
+ silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
+ packet->data, packet->len, FALSE);
+ silc_buffer_free(packet);
out:
+ if (dest_id)
+ silc_free(dest_id);
+ if (channel_id)
+ silc_free(channel_id);
silc_server_command_free(cmd);
}
+typedef struct {
+ SilcServer server;
+ SilcSocketConnection sock;
+ char *signoff;
+} *QuitInternal;
+
/* Quits connection to client. This gets called if client won't
close the connection even when it has issued QUIT command. */
SILC_TASK_CALLBACK(silc_server_command_quit_cb)
{
- SilcServer server = (SilcServer)context;
- SilcSocketConnection sock = server->sockets[fd];
+ 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_sock_user_data(server, sock);
+ silc_server_free_client_data(q->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(server, sock);
+ silc_server_close_connection(q->server, q->sock);
+
+ silc_free(q->signoff);
+ silc_free(q);
}
/* Quits SILC session. This is the normal way to disconnect client. */
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
SilcSocketConnection sock = cmd->sock;
+ QuitInternal q;
+ unsigned char *tmp = NULL;
+ uint32 len = 0;
- SILC_LOG_DEBUG(("Start"));
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_QUIT, cmd, 0, 1);
+
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
+ goto out;
+
+ /* Get destination ID */
+ 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->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, server,
- 0, 300000, SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
+ 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;
+ unsigned char *tmp, *comment;
+ uint32 tmp_len, tmp_len2;
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_KILL, cmd, 1, 2);
+
+ if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
+ goto out;
+
+ /* 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);
+ 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);
+ 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);
+ goto out;
+ }
+ client_id = silc_id_payload_parse_id(tmp, tmp_len);
+ if (!client_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+ SILC_STATUS_ERR_NO_SUCH_CLIENT_ID);
+ goto out;
+ }
+
+ /* Get the client entry */
+ remote_client = silc_idlist_find_client_by_id(server->local_list,
+ client_id, NULL);
+ if (!remote_client) {
+ remote_client = silc_idlist_find_client_by_id(server->global_list,
+ client_id, NULL);
+ if (!remote_client) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+ SILC_STATUS_ERR_NO_SUCH_CLIENT_ID);
+ goto out;
+ }
+ }
+
+ /* Get comment */
+ comment = silc_argument_get_arg_type(cmd->args, 2, &tmp_len2);
+ if (tmp_len2 > 128)
+ comment = NULL;
+
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
+ SILC_STATUS_OK);
+
+ /* Send the KILL notify packets. First send it to the channel, then
+ to our primary router and then directly to the client who is being
+ killed right now. */
+
+ /* Send KILLED notify to the channels. It is not sent to the client
+ as it will be sent differently destined directly to the client and not
+ to the channel. */
+ silc_server_send_notify_on_channels(server, remote_client,
+ remote_client, SILC_NOTIFY_TYPE_KILLED,
+ comment ? 2 : 1,
+ tmp, tmp_len,
+ comment, comment ? tmp_len2 : 0);
+
+ /* Send KILLED notify to primary route */
+ if (!server->standalone)
+ silc_server_send_notify_killed(server, server->router->connection, TRUE,
+ remote_client->id, SILC_ID_CLIENT_LEN,
+ comment);
+
+ /* Send KILLED notify to the client directly */
+ silc_server_send_notify_killed(server, remote_client->connection ?
+ remote_client->connection :
+ remote_client->router->connection, FALSE,
+ remote_client->id, SILC_ID_CLIENT_LEN,
+ comment);
+
+ /* Remove the client from all channels. This generates new keys to the
+ channels as well. */
+ silc_server_remove_from_channels(server, NULL, remote_client, FALSE,
+ NULL, TRUE);
+
+ /* Remove the client entry, If it is locally connected then we will also
+ disconnect the client here */
+ if (remote_client->data.registered && remote_client->connection) {
+ /* Remove locally conneted client */
+ SilcSocketConnection sock = remote_client->connection;
+ silc_server_free_client_data(server, sock, remote_client, FALSE, NULL);
+ silc_server_close_connection(server, sock);
+ } else {
+ /* Remove remote client */
+ if (!silc_idlist_del_client(server->global_list, remote_client))
+ silc_idlist_del_client(server->local_list, remote_client);
+ }
+
+ out:
+ 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;
- unsigned int argc;
- char info_string[256], *dest_server;
+ unsigned char *tmp;
+ uint32 tmp_len;
+ char *dest_server, *server_info = NULL, *server_name;
+ uint16 ident = silc_command_get_ident(cmd->payload);
+ SilcServerEntry entry = NULL;
+ SilcServerID *server_id = NULL;
- argc = silc_argument_get_arg_num(cmd->args);
- if (argc < 1) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- goto out;
- }
- if (argc > 1) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
- SILC_STATUS_ERR_TOO_MANY_PARAMS);
- goto out;
- }
+ SILC_SERVER_COMMAND_CHECK_ARGC(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);
+ if (!server_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
+ SILC_STATUS_ERR_NO_SERVER_ID);
+ 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, NULL);
+ if (!entry) {
+ entry = silc_idlist_find_server_by_id(server->global_list,
+ server_id, NULL);
+ if (!entry && server->server_type == SILC_ROUTER) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
+ SILC_STATUS_ERR_NO_SUCH_SERVER);
+ goto out;
+ }
+ }
+ }
+
+ if ((!dest_server && !server_id) ||
+ (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->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_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, NULL);
+ if (!entry) {
+ entry = silc_idlist_find_server_by_name(server->local_list,
+ dest_server, NULL);
+ }
+ }
- if (server->server_type == SILC_SERVER && !server->standalone) {
+ if (!cmd->pending &&
+ server->server_type == SILC_ROUTER && entry && !entry->server_info) {
+ /* Send to the server */
+ SilcBuffer tmpbuf;
+ uint16 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);
+
+ 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_destructor,
+ silc_server_command_info,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+ silc_command_set_ident(cmd->payload, old_ident);
+ silc_buffer_free(tmpbuf);
+ return;
+ }
+ if (!entry && !cmd->pending && !server->standalone) {
+ /* Send to the primary router */
+ SilcBuffer tmpbuf;
+ uint16 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);
+
+ silc_server_packet_send(server, 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_INFO,
+ silc_command_get_ident(cmd->payload),
+ silc_server_command_destructor,
+ silc_server_command_info,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+ silc_command_set_ident(cmd->payload, old_ident);
+ silc_buffer_free(tmpbuf);
+ return;
}
+ }
- if (server->server_type == SILC_ROUTER) {
+ if (server_id)
+ silc_free(server_id);
- }
+ if (!entry) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
+ SILC_STATUS_ERR_NO_SUCH_SERVER);
+ 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, ident, 3,
+ 2, idp->data, idp->len,
+ 3, server_name,
+ strlen(server_name),
+ 4, server_info,
+ strlen(server_info));
+ 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(connect)
-{
-}
-
/* Server side of command PING. This just replies to the ping. */
SILC_SERVER_CMD_FUNC(ping)
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
SilcServerID *id;
- unsigned int argc, len;
+ uint32 len;
unsigned char *tmp;
- argc = silc_argument_get_arg_num(cmd->args);
- if (argc < 1) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- goto out;
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_INFO, cmd, 1, 2);
+
+ /* Get Server ID */
+ tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
+ if (!tmp) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
+ SILC_STATUS_ERR_NO_SERVER_ID);
+ goto out;
+ }
+ id = silc_id_str2id(tmp, len, SILC_ID_SERVER);
+ if (!id)
+ goto out;
+
+ if (!SILC_ID_SERVER_COMPARE(id, server->id)) {
+ /* Send our reply */
+ 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);
+ goto out;
+ }
+
+ silc_free(id);
+
+ out:
+ silc_server_command_free(cmd);
+}
+
+/* Internal routine to join channel. The channel sent to this function
+ has been either created or resolved from ID lists. This joins the sent
+ client to the channel. */
+
+static void silc_server_command_join_channel(SilcServer server,
+ SilcServerCommandContext cmd,
+ SilcChannelEntry channel,
+ SilcClientID *client_id,
+ int created,
+ uint32 umode)
+{
+ SilcSocketConnection sock = cmd->sock;
+ unsigned char *tmp;
+ uint32 tmp_len, user_count;
+ unsigned char *passphrase = NULL, mode[4], tmp2[4], tmp3[4];
+ SilcClientEntry client;
+ SilcChannelClientEntry chl;
+ SilcBuffer reply, chidp, clidp, keyp = NULL, user_list, mode_list;
+ uint16 ident = silc_command_get_ident(cmd->payload);
+ char check[512];
+
+ SILC_LOG_DEBUG(("Start"));
+
+ if (!channel)
+ return;
+
+ /* 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)
+ goto out;
+ }
+
+ /*
+ * Check channel modes
+ */
+
+ if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
+ strncat(check, client->nickname, strlen(client->nickname));
+ if (!strchr(client->nickname, '@')) {
+ strncat(check, "@", 1);
+ strncat(check, server->server_name, strlen(server->server_name));
+ }
+ strncat(check, "!", 1);
+ strncat(check, client->username, strlen(client->username));
+ if (!strchr(client->username, '@')) {
+ strncat(check, "@", 1);
+ strncat(check, cmd->sock->hostname, strlen(cmd->sock->hostname));
+ }
+ }
+
+ /* Check invite list if channel is invite-only channel */
+ if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT &&
+ channel->mode & SILC_CHANNEL_MODE_INVITE) {
+ if (!channel->invite_list) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
+ SILC_STATUS_ERR_NOT_INVITED);
+ goto out;
+ }
+
+ if (!silc_string_match(channel->invite_list, check)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
+ SILC_STATUS_ERR_NOT_INVITED);
+ 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 (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT && channel->ban_list) {
+ if (silc_string_match(channel->ban_list, check)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
+ SILC_STATUS_ERR_BANNED_FROM_CHANNEL);
+ goto out;
+ }
+ }
+
+ /* 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);
}
- if (argc > 2) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
- SILC_STATUS_ERR_TOO_MANY_PARAMS);
- goto out;
+
+ /* Check the channel passphrase if set. */
+ if (channel->mode & SILC_CHANNEL_MODE_PASSPHRASE) {
+ if (!passphrase || memcmp(channel->passphrase, passphrase,
+ strlen(channel->passphrase))) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
+ SILC_STATUS_ERR_BAD_PASSWORD);
+ goto out;
+ }
}
- /* Get Server ID */
- tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
- if (!tmp) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
- SILC_STATUS_ERR_NO_SERVER_ID);
- goto out;
+ /* Check user count limit if set. */
+ if (channel->mode & SILC_CHANNEL_MODE_ULIMIT) {
+ if (silc_list_count(channel->user_list) + 1 >
+ channel->user_limit) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
+ SILC_STATUS_ERR_CHANNEL_IS_FULL);
+ goto out;
+ }
}
- id = silc_id_payload_parse_id(tmp, len);
- if (!SILC_ID_SERVER_COMPARE(id, server->id)) {
- /* Send our reply */
- 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);
+ /*
+ * Client is allowed to join to the channel. Make it happen.
+ */
+
+ /* Check whether the client already is on the channel */
+ if (silc_server_client_on_channel(client, channel)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
+ SILC_STATUS_ERR_USER_ON_CHANNEL);
goto out;
}
- silc_free(id);
-
- out:
- silc_server_command_free(cmd);
-}
+ /* 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);
-SILC_SERVER_CMD_FUNC(oper)
-{
-}
+ /* 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);
-typedef struct {
- char *channel_name;
- char *nickname;
- char *username;
- char *hostname;
- SilcChannelEntry channel;
- SilcServer server;
- SilcClientEntry client;
-} JoinInternalContext;
+ /* 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-
+ referencing. */
+ chl = silc_calloc(1, sizeof(*chl));
+ chl->mode = umode;
+ chl->client = client;
+ chl->channel = channel;
+ silc_list_add(channel->user_list, chl);
+ silc_list_add(client->channels, chl);
-SILC_TASK_CALLBACK(silc_server_command_join_notify)
-{
- JoinInternalContext *ctx = (JoinInternalContext *)context;
+ /* Get users on the channel */
+ silc_server_get_users_on_channel(server, channel, &user_list, &mode_list,
+ &user_count);
+
+ /* Encode Client ID Payload of the original client who wants to join */
+ clidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
+
+ /* Encode command reply packet */
+ chidp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
+ SILC_PUT32_MSB(channel->mode, mode);
+ SILC_PUT32_MSB(created, tmp2);
+ SILC_PUT32_MSB(user_count, tmp3);
+
+ if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
+ 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 (ctx->channel->key && ctx->channel->key_len) {
- SilcBuffer clidp;
+ reply =
+ silc_command_reply_payload_encode_va(SILC_COMMAND_JOIN,
+ SILC_STATUS_OK, ident, 13,
+ 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, channel->ban_list,
+ channel->ban_list ?
+ strlen(channel->ban_list) : 0,
+ 9, channel->invite_list,
+ channel->invite_list ?
+ strlen(channel->invite_list) : 0,
+ 10, channel->topic,
+ channel->topic ?
+ strlen(channel->topic) : 0,
+ 11, channel->hmac->hmac->name,
+ strlen(channel->hmac->hmac->name),
+ 12, tmp3, 4,
+ 13, user_list->data, user_list->len,
+ 14, mode_list->data,
+ mode_list->len);
- clidp = silc_id_payload_encode(ctx->client->id, SILC_ID_CLIENT);
+ /* Send command reply */
+ silc_server_packet_send(server, sock, SILC_PACKET_COMMAND_REPLY, 0,
+ reply->data, reply->len, FALSE);
- silc_server_send_notify_to_channel(ctx->server, ctx->channel,
- SILC_NOTIFY_TYPE_JOIN, 1,
- clidp->data, clidp->len);
+ 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);
- silc_buffer_free(clidp);
- silc_free(ctx);
- } else {
- silc_task_register(ctx->server->timeout_queue, fd,
- silc_server_command_join_notify, context,
- 0, 300000, SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
+ /* 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);
}
-}
-/* Assembles NAMES command and executes it. This is called when client
- joins to a channel and we wan't to send NAMES command reply to the
- client. */
+ 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);
-void silc_server_command_send_names(SilcServer server,
- SilcSocketConnection sock,
- SilcChannelEntry channel)
-{
- SilcServerCommandContext cmd;
- SilcBuffer buffer, idp;
-
- idp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
- buffer = silc_command_payload_encode_va(SILC_COMMAND_NAMES, 0, 1,
- 1, idp->data, idp->len);
-
- cmd = silc_calloc(1, sizeof(*cmd));
- cmd->payload = silc_command_payload_parse(buffer);
- cmd->args = silc_command_get_args(cmd->payload);
- cmd->server = server;
- cmd->sock = sock;
- cmd->pending = FALSE;
-
- silc_server_command_names((void *)cmd);
- silc_free(buffer);
- silc_free(idp);
+ out:
+ if (passphrase)
+ silc_free(passphrase);
}
/* Server side of command JOIN. Joins client into requested channel. If
{
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
- SilcSocketConnection sock = cmd->sock;
- SilcBuffer buffer = cmd->packet->buffer;
- int argc, i, k, tmp_len;
- char *tmp, *channel_name = NULL, *cipher = NULL;
- unsigned char *passphrase = NULL, mode[4];
- unsigned int umode = 0;
+ uint32 tmp_len;
+ char *tmp, *channel_name = NULL, *cipher, *hmac;
SilcChannelEntry channel;
- SilcChannelClientEntry chl;
- SilcServerID *router_id;
- SilcBuffer packet, idp;
- SilcClientEntry client;
-
- SILC_LOG_DEBUG(("Start"));
+ uint32 umode = 0;
+ int created = FALSE;
+ SilcClientID *client_id;
- /* Check number of parameters */
- argc = silc_argument_get_arg_num(cmd->args);
- if (argc < 1) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- goto out;
- }
- if (argc > 3) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
- SILC_STATUS_ERR_TOO_MANY_PARAMS);
- goto out;
- }
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_JOIN, cmd, 1, 4);
/* Get channel name */
tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
}
channel_name = tmp;
+ if (strlen(channel_name) > 256)
+ channel_name[255] = '\0';
+
if (silc_server_command_bad_chars(channel_name) == TRUE) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
SILC_STATUS_ERR_BAD_CHANNEL);
goto out;
}
- /* Get passphrase */
+ /* Get Client ID of the client who is joining to the channel */
tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
- if (tmp) {
- passphrase = silc_calloc(tmp_len, sizeof(*passphrase));
- memcpy(passphrase, tmp, tmp_len);
+ if (!tmp) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ goto out;
+ }
+ client_id = silc_id_payload_parse_id(tmp, tmp_len);
+ if (!client_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ goto out;
}
-
- /* Get cipher name */
- cipher = silc_argument_get_arg_type(cmd->args, 3, NULL);
+
+ /* Get cipher and hmac name */
+ cipher = silc_argument_get_arg_type(cmd->args, 4, NULL);
+ hmac = silc_argument_get_arg_type(cmd->args, 5, NULL);
/* See if the channel exists */
- channel =
- silc_idlist_find_channel_by_name(server->local_list, channel_name);
- if (!channel) {
- /* Channel not found */
-
- /* If we are standalone server we don't have a router, we just create
- the channel by ourselves. */
- if (server->standalone) {
- router_id = server->id;
- channel = silc_server_new_channel(server, router_id, cipher,
- channel_name);
- umode |= SILC_CHANNEL_UMODE_CHANOP;
- umode |= SILC_CHANNEL_UMODE_CHANFO;
- if (!channel)
- goto out;
+ channel = silc_idlist_find_channel_by_name(server->local_list,
+ channel_name, NULL);
- goto join_channel;
+ 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;
+ }
}
- /* No channel ID found, the channel does not exist on our server.
- We 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 we are normal server. */
- if (server->server_type == SILC_SERVER) {
+ if (!channel || !channel->id) {
+ /* Channel not found */
+
+ /* If we are standalone server we don't have a router, we just create
+ the channel by ourselves. */
+ if (server->standalone) {
+ 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);
+ goto out;
+ }
- /* Forward the original JOIN command to the router */
- silc_buffer_push(buffer, buffer->data - buffer->head);
- silc_server_packet_forward(server, (SilcSocketConnection)
- server->id_entry->router->connection,
- buffer->data, buffer->len, TRUE);
-
- /* Add the command to be pending. It will be re-executed after
- router has replied back to us. */
- cmd->pending = TRUE;
- silc_server_command_pending(SILC_COMMAND_JOIN,
- silc_server_command_join, context);
- return;
- }
- }
+ umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
+ created = TRUE;
+
+ } else {
- /* If we are router and the channel does not exist we will check our
- global list for the channel. */
- if (!channel && server->server_type == SILC_ROUTER) {
+ /* 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) {
+ SilcBuffer tmpbuf;
+ uint16 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 JOIN 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_JOIN,
+ silc_command_get_ident(cmd->payload),
+ silc_server_command_destructor,
+ silc_server_command_join,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+ return;
+ }
+
+ /* We are router and the channel does not seem exist so we will check
+ our global list as well for the channel. */
+ channel = silc_idlist_find_channel_by_name(server->global_list,
+ channel_name, NULL);
+ if (!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);
+ goto out;
+ }
+
+ umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
+ created = TRUE;
+ }
+ }
+ }
+ } else {
+ if (!channel) {
+ /* Channel not found */
+
+ /* If the command came from router and/or 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)
+ 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 = silc_idlist_find_channel_by_name(server->global_list,
+ channel_name, NULL);
+ if (!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);
+ goto out;
+ }
- /* Notify all routers about the new channel in SILC network. */
- if (!server->standalone) {
-#if 0
- silc_server_send_new_id(server, server->id_entry->router->connection,
- TRUE,
- xxx, SILC_ID_CHANNEL, SILC_ID_CHANNEL_LEN);
-#endif
+ umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
+ created = TRUE;
+ }
}
+ }
+ /* 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 */
}
- join_channel:
+ /* Join to the channel */
+ silc_server_command_join_channel(server, cmd, channel, client_id,
+ created, umode);
- /*
- * Check channel modes
- */
+ silc_free(client_id);
- /* 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. */
+ out:
+ silc_server_command_free(cmd);
+}
- } else {
- /* XXX client must be invited to be able to join the channel */
- }
- }
+/* Server side of command MOTD. Sends server's current "message of the
+ day" to the client. */
- /* Check ban list if set */
- if (channel->mode & SILC_CHANNEL_MODE_BAN) {
+SILC_SERVER_CMD_FUNC(motd)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcBuffer packet, idp;
+ char *motd, *dest_server;
+ uint32 motd_len;
+ uint16 ident = silc_command_get_ident(cmd->payload);
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(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);
+ goto out;
}
- /* 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;
- }
- }
+ if (!strncasecmp(dest_server, server->server_name, strlen(dest_server))) {
+ /* Send our MOTD */
- /* 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) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
- SILC_STATUS_ERR_CHANNEL_IS_FULL);
+ idp = silc_id_payload_encode(server->id_entry->id, SILC_ID_SERVER);
+
+ if (server->config && server->config->motd &&
+ server->config->motd->motd_file) {
+ /* Send motd */
+ motd = silc_file_read(server->config->motd->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, ident, 2,
+ 2, idp, idp->len,
+ 3, motd, motd_len);
goto out;
+ } else {
+ /* No motd */
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
+ SILC_STATUS_OK, ident, 1,
+ 2, idp, idp->len);
}
- }
-
- /*
- * Client is allowed to join to the channel. Make it happen.
- */
- /* If the JOIN request was forwarded to us we will make a bit slower
- query to get the client pointer. Otherwise, we get the client pointer
- real easy. */
- if (!(cmd->packet->flags & SILC_PACKET_FLAG_FORWARDED)) {
- client = (SilcClientEntry)sock->user_data;
+ 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 {
- void *id = silc_id_str2id(cmd->packet->src_id, cmd->packet->src_id_type);
- client = silc_idlist_find_client_by_id(server->local_list, id);
- if (!client) {
- /* XXX */
- goto out;
+ SilcServerEntry entry;
+
+ /* Check whether we have this server cached */
+ entry = silc_idlist_find_server_by_name(server->global_list,
+ dest_server, NULL);
+ if (!entry) {
+ entry = silc_idlist_find_server_by_name(server->local_list,
+ dest_server, NULL);
}
- silc_free(id);
- }
-
- /* Check whether the client already is on the channel */
- if (silc_server_client_on_channel(client, channel)) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
- SILC_STATUS_ERR_USER_ON_CHANNEL);
- goto out;
- }
- /* 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-
- referencing. */
- chl = silc_calloc(1, sizeof(*chl));
- chl->mode = umode;
- chl->client = client;
- chl->channel = channel;
- silc_list_add(channel->user_list, chl);
- silc_list_add(client->channels, chl);
+ if (server->server_type == SILC_ROUTER && !cmd->pending &&
+ entry && !entry->motd) {
+ /* Send to the server */
+ SilcBuffer tmpbuf;
+ uint16 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);
+
+ 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_destructor,
+ silc_server_command_motd,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+ silc_command_set_ident(cmd->payload, old_ident);
+ silc_buffer_free(tmpbuf);
+ return;
+ }
- /* Notify router about new user on channel. If we are normal server
- we send it to our router, if we are router we send it to our
- primary route. */
- if (!server->standalone) {
+ if (!entry && !cmd->pending && !server->standalone) {
+ /* Send to the primary router */
+ SilcBuffer tmpbuf;
+ uint16 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);
+
+ silc_server_packet_send(server, 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_MOTD,
+ silc_command_get_ident(cmd->payload),
+ silc_server_command_destructor,
+ silc_server_command_motd,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+ silc_command_set_ident(cmd->payload, old_ident);
+ silc_buffer_free(tmpbuf);
+ return;
+ }
- }
+ if (!entry) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
+ SILC_STATUS_ERR_NO_SUCH_SERVER);
+ goto out;
+ }
- /* Send command reply to the client. Client receives the Channe ID,
- channel mode and possibly other information in this reply packet. */
- if (!cmd->pending) {
- idp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
- SILC_PUT32_MSB(channel->mode, mode);
+ idp = silc_id_payload_encode(server->id_entry->id, SILC_ID_SERVER);
- if (!channel->topic)
- packet =
- silc_command_reply_payload_encode_va(SILC_COMMAND_JOIN,
- SILC_STATUS_OK, 0, 3,
- 2, channel_name,
- strlen(channel_name),
- 3, idp->data, idp->len,
- 4, mode, 4);
+ if (entry->motd)
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
+ SILC_STATUS_OK, ident, 2,
+ 2, idp, idp->len,
+ 3, entry->motd,
+ strlen(entry->motd));
else
- packet =
- silc_command_reply_payload_encode_va(SILC_COMMAND_JOIN,
- SILC_STATUS_OK, 0, 4,
- 2, channel_name,
- strlen(channel_name),
- 3, idp->data, idp->len,
- 4, mode, 4,
- 5, channel->topic,
- strlen(channel->topic));
-
- if (cmd->packet->flags & SILC_PACKET_FLAG_FORWARDED) {
- void *id = silc_id_str2id(cmd->packet->src_id, cmd->packet->src_id_type);
- silc_server_packet_send_dest(cmd->server, cmd->sock,
- SILC_PACKET_COMMAND_REPLY, 0,
- id, cmd->packet->src_id_type,
- packet->data, packet->len, FALSE);
- silc_free(id);
- } else
- silc_server_packet_send(server, sock, SILC_PACKET_COMMAND_REPLY, 0,
- packet->data, packet->len, FALSE);
- silc_buffer_free(packet);
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
+ SILC_STATUS_OK, ident, 1,
+ 2, idp, idp->len);
- /* Send channel key to the client. Client cannot start transmitting
- to the channel until we have sent the key. */
- tmp_len = strlen(channel->channel_key->cipher->name);
- packet =
- silc_channel_key_payload_encode(idp->len, idp->data,
- strlen(channel->channel_key->
- cipher->name),
- channel->channel_key->cipher->name,
- channel->key_len / 8, channel->key);
-
- silc_server_packet_send(server, sock, SILC_PACKET_CHANNEL_KEY, 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);
}
- /* Finally, send notify message to all clients on the channel about
- new user on the channel. */
- if (!(cmd->packet->flags & SILC_PACKET_FLAG_FORWARDED)) {
- if (!cmd->pending) {
- SilcBuffer clidp;
-
- clidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
-
- silc_server_send_notify_to_channel(server, channel,
- SILC_NOTIFY_TYPE_JOIN, 1,
- clidp->data, clidp->len);
-
- silc_buffer_free(clidp);
- } else {
- /* This is pending command request. Send the notify after we have
- received the key for the channel from the router. */
- JoinInternalContext *ctx = silc_calloc(1, sizeof(*ctx));
- ctx->channel_name = channel_name;
- ctx->nickname = client->nickname;
- ctx->username = client->username;
- ctx->hostname = sock->hostname ? sock->hostname : sock->ip;
- ctx->channel = channel;
- ctx->server = server;
- ctx->client = client;
- silc_task_register(server->timeout_queue, sock->sock,
- silc_server_command_join_notify, ctx,
- 0, 10000, SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
- }
- }
-
- /* Send NAMES command reply to the joined channel so the user sees who
- is currently on the channel. */
- silc_server_command_send_names(server, sock, channel);
-
out:
silc_server_command_free(cmd);
}
-/* Server side of command MOTD. Sends server's current "message of the
- day" to the client. */
+/* 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. */
-SILC_SERVER_CMD_FUNC(motd)
+SILC_SERVER_CMD_FUNC(umode)
{
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
- unsigned int argc;
- char *motd;
- int motd_len;
-
- SILC_LOG_DEBUG(("Start"));
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ SilcBuffer packet;
+ unsigned char *tmp_mask;
+ uint32 mask;
+ uint16 ident = silc_command_get_ident(cmd->payload);
- argc = silc_argument_get_arg_num(cmd->args);
- if (argc < 1) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
goto out;
- }
- if (argc > 2) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
- SILC_STATUS_ERR_TOO_MANY_PARAMS);
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_UMODE, cmd, 2, 2);
+
+ /* Get the client's 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_UMODE,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
goto out;
}
+ SILC_GET32_MSB(mask, tmp_mask);
- /* XXX show currently only our motd */
+ /*
+ * Change the mode
+ */
- if (server->config && server->config->motd &&
- server->config->motd->motd_file) {
+ if (mask & SILC_UMODE_SERVER_OPERATOR) {
+ if (!(client->mode & SILC_UMODE_SERVER_OPERATOR)) {
+ /* Cannot operator mode */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_UMODE,
+ SILC_STATUS_ERR_PERM_DENIED);
+ goto out;
+ }
+ } else {
+ if (client->mode & SILC_UMODE_SERVER_OPERATOR)
+ /* Remove the server operator rights */
+ client->mode &= ~SILC_UMODE_SERVER_OPERATOR;
+ }
- /* Send motd */
- motd = silc_file_read(server->config->motd->motd_file, &motd_len);
- if (!motd)
+ if (mask & SILC_UMODE_ROUTER_OPERATOR) {
+ if (!(client->mode & SILC_UMODE_ROUTER_OPERATOR)) {
+ /* Cannot operator mode */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_UMODE,
+ SILC_STATUS_ERR_PERM_DENIED);
goto out;
+ }
+ } else {
+ if (client->mode & SILC_UMODE_ROUTER_OPERATOR)
+ /* Remove the router operator rights */
+ client->mode &= ~SILC_UMODE_ROUTER_OPERATOR;
+ }
- motd[motd_len] = 0;
- silc_server_command_send_status_data(cmd, SILC_COMMAND_MOTD,
- SILC_STATUS_OK,
- 2, motd, motd_len);
- goto out;
+ if (mask & SILC_UMODE_GONE) {
+ client->mode |= SILC_UMODE_GONE;
} else {
- /* No motd */
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_MOTD,
- SILC_STATUS_OK);
+ if (client->mode & SILC_UMODE_GONE)
+ /* Remove the gone status */
+ client->mode &= ~SILC_UMODE_GONE;
}
+ /* Send UMODE change to primary router */
+ if (!server->standalone)
+ silc_server_send_notify_umode(server, server->router->connection, TRUE,
+ client->id, SILC_ID_CLIENT_LEN,
+ client->mode);
+
+ /* Send command reply to sender */
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_UMODE,
+ SILC_STATUS_OK, ident, 1,
+ 2, tmp_mask, 4);
+ 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);
}
-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. */
int silc_server_check_cmode_rights(SilcChannelEntry channel,
SilcChannelClientEntry client,
- unsigned int mode)
+ uint32 mode)
{
int is_op = client->mode & SILC_CHANNEL_UMODE_CHANOP;
int is_fo = client->mode & SILC_CHANNEL_UMODE_CHANFO;
if (is_op && !is_fo)
return FALSE;
} else {
- if (channel->mode & SILC_CHANNEL_MODE_PRIVATE) {
+ if (channel->mode & SILC_CHANNEL_MODE_PRIVKEY) {
if (is_op && !is_fo)
return FALSE;
}
}
}
+ if (mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
+ if (is_op && !is_fo)
+ return FALSE;
+ } else {
+ if (channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
+ if (is_op && !is_fo)
+ return FALSE;
+ }
+ }
+
return TRUE;
}
{
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
- SilcSocketConnection sock = cmd->sock;
SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ SilcIDListData idata = (SilcIDListData)client;
SilcChannelID *channel_id;
- SilcClientID *client_id;
SilcChannelEntry channel;
SilcChannelClientEntry chl;
SilcBuffer packet, cidp;
unsigned char *tmp, *tmp_id, *tmp_mask;
- unsigned int argc, mode_mask, tmp_len, tmp_len2;
- int i;
-
- SILC_LOG_DEBUG(("Start"));
+ char *cipher = NULL, *hmac = NULL;
+ uint32 mode_mask, tmp_len, tmp_len2;
+ uint16 ident = silc_command_get_ident(cmd->payload);
- 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;
- }
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_CMODE, cmd, 2, 7);
/* Get Channel ID */
tmp_id = silc_argument_get_arg_type(cmd->args, 1, &tmp_len2);
goto out;
}
channel_id = silc_id_payload_parse_id(tmp_id, tmp_len2);
+ 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);
SILC_GET32_MSB(mode_mask, tmp_mask);
/* Get channel entry */
- channel = silc_idlist_find_channel_by_id(server->local_list, channel_id);
+ 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;
+ channel = silc_idlist_find_channel_by_id(server->global_list,
+ channel_id, NULL);
+ if (!channel) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ goto out;
+ }
}
/* Check whether this client is on the channel */
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. */
- unsigned int key_len;
- unsigned char channel_key[32];
-
- /* XXX Duplicated code, make own function for this!! LEAVE uses this
- as well */
/* Re-generate channel key */
- key_len = channel->key_len / 8;
- for (i = 0; i < key_len; i++)
- channel_key[i] = silc_rng_get_byte(server->rng);
- channel->channel_key->cipher->set_key(channel->channel_key->context,
- channel_key, key_len);
- memset(channel->key, 0, key_len);
- silc_free(channel->key);
- channel->key = silc_calloc(key_len, sizeof(*channel->key));
- memcpy(channel->key, channel_key, key_len);
- memset(channel_key, 0, sizeof(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,
- key_len, 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->id_entry->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);
+ /* 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 = channel->channel_key->cipher->name;
+ hmac = channel->hmac->hmac->name;
}
}
if (mode_mask & SILC_CHANNEL_MODE_ULIMIT) {
/* User limit is set on channel */
- unsigned int user_limit;
+ uint32 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);
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);
goto out;
}
/* Save the passphrase */
- channel->mode_data.passphrase = strdup(tmp);
+ channel->passphrase = strdup(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;
+ if (channel->passphrase) {
+ 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 */
- /* 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);
goto out;
}
- /* XXX check that channel founder is not banned */
+ /* Delete old cipher and allocate the new one */
+ silc_cipher_free(channel->channel_key);
+ if (!silc_cipher_alloc(cipher, &channel->channel_key)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
+ SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
+ goto out;
+ }
- /* Save the ban list */
- channel->mode_data.ban_list = strdup(tmp);
+ /* Re-generate channel key */
+ silc_server_create_channel_key(server, channel, 0);
+
+ /* 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_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;
+ if (channel->mode & SILC_CHANNEL_MODE_CIPHER) {
+ /* Cipher mode is unset. Remove the cipher and revert back to
+ default cipher */
+ cipher = channel->cipher;
+
+ /* Delete old cipher and allocate default one */
+ silc_cipher_free(channel->channel_key);
+ if (!silc_cipher_alloc(cipher ? cipher : "aes-256-cbc",
+ &channel->channel_key)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
+ SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
+ goto out;
}
+
+ /* Re-generate channel key */
+ silc_server_create_channel_key(server, channel, 0);
+
+ /* 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_INVITE_LIST) {
- if (!(channel->mode & SILC_CHANNEL_MODE_INVITE_LIST)) {
- /* Invite list is specified for channel */
+ if (mode_mask & SILC_CHANNEL_MODE_HMAC) {
+ if (!(channel->mode & SILC_CHANNEL_MODE_HMAC)) {
+ /* HMAC to use protect the traffic */
+ unsigned char hash[32];
- /* Get invite list */
- tmp = silc_argument_get_arg_type(cmd->args, 6, 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);
+ goto out;
+ }
+
+ /* Delete old hmac and allocate the new one */
+ silc_hmac_free(channel->hmac);
+ if (!silc_hmac_alloc(hmac, NULL, &channel->hmac)) {
silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
goto out;
}
- /* Save the invite linst */
- channel->mode_data.invite_list = strdup(tmp);
+ /* Set the HMAC key out of current channel key. The client must do
+ this locally. */
+ silc_hash_make(channel->hmac->hash, channel->key, channel->key_len / 8,
+ hash);
+ silc_hmac_set_key(channel->hmac, hash,
+ silc_hash_len(channel->hmac->hash));
+ memset(hash, 0, sizeof(hash));
}
} 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_HMAC) {
+ /* Hmac mode is unset. Remove the hmac and revert back to
+ default hmac */
+ 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 : "hmac-sha1-96", NULL,
+ &channel->hmac)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
+ SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
+ goto out;
}
+
+ /* Set the HMAC key out of current channel key. The client must do
+ this locally. */
+ silc_hash_make(channel->hmac->hash, channel->key, channel->key_len / 8,
+ hash);
+ silc_hmac_set_key(channel->hmac, hash,
+ silc_hash_len(channel->hmac->hash));
+ memset(hash, 0, sizeof(hash));
}
}
- if (mode_mask & SILC_CHANNEL_MODE_CIPHER) {
- if (!(channel->mode & SILC_CHANNEL_MODE_CIPHER)) {
- /* Cipher to use protect the traffic */
- unsigned int key_len = 128;
- unsigned char channel_key[32];
- char *cp;
+ if (mode_mask & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
+ if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
+ if (!(channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH)) {
+ /* Set the founder authentication */
+ SilcAuthPayload auth;
+
+ 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);
+ goto out;
+ }
- /* Get cipher */
- tmp = silc_argument_get_arg_type(cmd->args, 8, NULL);
- if (!tmp) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- goto out;
- }
+ auth = silc_auth_payload_parse(tmp, tmp_len);
+ if (!auth) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ goto out;
+ }
+
+ /* Save the public key */
+ tmp = silc_pkcs_public_key_encode(idata->public_key, &tmp_len);
+ silc_pkcs_public_key_decode(tmp, tmp_len, &channel->founder_key);
+ silc_free(tmp);
+
+ channel->founder_method = silc_auth_get_method(auth);
+
+ if (channel->founder_method == SILC_AUTH_PASSWORD) {
+ tmp = silc_auth_get_data(auth, &tmp_len);
+ channel->founder_passwd =
+ silc_calloc(tmp_len + 1, sizeof(*channel->founder_passwd));
+ memcpy(channel->founder_passwd, tmp, tmp_len);
+ channel->founder_passwd_len = tmp_len;
+ }
- cp = strchr(tmp, ':');
- if (cp) {
- key_len = atoi(cp);
- *cp = '\0';
+ silc_auth_payload_free(auth);
+ }
+ }
+ } 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);
+ if (channel->founder_passwd) {
+ silc_free(channel->founder_passwd);
+ channel->founder_passwd = NULL;
+ }
}
+ }
+ }
+
+ /* Finally, set the mode */
+ channel->mode = mode_mask;
+
+ /* 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, 4,
+ cidp->data, cidp->len,
+ tmp_mask, 4,
+ cipher, cipher ? strlen(cipher) : 0,
+ hmac, hmac ? strlen(hmac) : 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,
+ SILC_ID_CLIENT_LEN,
+ cipher, hmac);
- /* XXX Duplicated code, make own function for this!! */
+ /* Send command reply to sender */
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CMODE,
+ SILC_STATUS_OK, ident, 1,
+ 2, tmp_mask, 4);
+ silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
+ packet->data, packet->len, FALSE);
- /* Delete old cipher and allocate the new one */
- silc_cipher_free(channel->channel_key);
- silc_cipher_alloc(tmp, &channel->channel_key);
+ silc_buffer_free(packet);
+ silc_free(channel_id);
+ silc_free(cidp);
- /* Re-generate channel key */
- key_len /= 8;
- if (key_len > sizeof(channel_key))
- key_len = sizeof(channel_key);
-
- for (i = 0; i < key_len; i++)
- channel_key[i] = silc_rng_get_byte(server->rng);
- channel->channel_key->cipher->set_key(channel->channel_key->context,
- channel_key, key_len);
- memset(channel->key, 0, key_len);
- silc_free(channel->key);
- channel->key = silc_calloc(key_len, sizeof(*channel->key));
- memcpy(channel->key, channel_key, key_len);
- memset(channel_key, 0, sizeof(channel_key));
+ out:
+ silc_server_command_free(cmd);
+}
+
+/* Server side of CUMODE command. Changes client's mode on a channel. */
+
+SILC_SERVER_CMD_FUNC(cumode)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ SilcIDListData idata = (SilcIDListData)client;
+ SilcChannelID *channel_id;
+ SilcClientID *client_id;
+ SilcChannelEntry channel;
+ SilcClientEntry target_client;
+ SilcChannelClientEntry chl;
+ SilcBuffer packet, idp;
+ unsigned char *tmp_id, *tmp_ch_id, *tmp_mask;
+ uint32 target_mask, sender_mask = 0, tmp_len, tmp_ch_len;
+ int notify = FALSE;
+ uint16 ident = silc_command_get_ident(cmd->payload);
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(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);
+ goto out;
+ }
+ channel_id = silc_id_payload_parse_id(tmp_ch_id, tmp_ch_len);
+ if (!channel_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NO_CHANNEL_ID);
+ goto out;
+ }
+
+ /* Get channel entry */
+ 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_CUMODE,
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ goto out;
+ }
+ }
+
+ /* Check whether sender is on the channel */
+ if (!silc_server_client_on_channel(client, channel)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NOT_ON_CHANNEL);
+ 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) {
+ sender_mask = chl->mode;
+ break;
+ }
+ }
+
+ /* 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);
+ goto out;
+ }
+ SILC_GET32_MSB(target_mask, tmp_mask);
+
+ /* Get target Client ID */
+ 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);
+ goto out;
+ }
+ client_id = silc_id_payload_parse_id(tmp_id, tmp_len);
+ if (!client_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NO_CLIENT_ID);
+ goto out;
+ }
+
+ /* Get target client's entry */
+ target_client = silc_idlist_find_client_by_id(server->local_list,
+ client_id, NULL);
+ if (!target_client) {
+ target_client = silc_idlist_find_client_by_id(server->global_list,
+ client_id, NULL);
+ }
+
+ 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_NO_CHANNEL_PRIV);
+ goto out;
+ }
+
+ /* Check whether target client is on the channel */
+ if (target_client != client) {
+ if (!silc_server_client_on_channel(target_client, channel)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_USER_NOT_ON_CHANNEL);
+ 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;
+ }
+
+ /*
+ * 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) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NOT_YOU);
+ goto out;
+ }
+
+ if (target_mask & SILC_CHANNEL_UMODE_CHANFO) {
+ /* The client tries to claim the founder rights. */
+ unsigned char *tmp_auth;
+ uint32 tmp_auth_len, auth_len;
+ void *auth;
- /* 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,
- key_len, channel->key);
+ if (target_client != client) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NOT_YOU);
+ goto out;
+ }
+
+ if (!(channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) ||
+ !channel->founder_key) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NOT_YOU);
+ 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_NOT_ENOUGH_PARAMS);
+ goto out;
+ }
+
+ auth = (channel->founder_method == SILC_AUTH_PASSWORD ?
+ (void *)channel->founder_passwd : (void *)channel->founder_key);
+ auth_len = (channel->founder_method == SILC_AUTH_PASSWORD ?
+ channel->founder_passwd_len : 0);
- /* 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->id_entry->router->connection,
- SILC_PACKET_CHANNEL_KEY, 0, packet->data,
- packet->len, TRUE);
+ if (!silc_auth_verify_data(tmp_auth, tmp_auth_len,
+ channel->founder_method, auth, auth_len,
+ idata->hash, client->id, SILC_ID_CLIENT)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_AUTH_FAILED);
+ goto out;
+ }
+
+ sender_mask = chl->mode |= SILC_CHANNEL_UMODE_CHANFO;
+ 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 {
-
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ SILC_STATUS_ERR_NOT_YOU);
+ 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);
}
- } else {
- if (channel->mode & SILC_CHANNEL_MODE_CIPHER) {
- /* Cipher mode is unset. Remove the cipher and revert back to
- default cipher */
- unsigned int key_len;
- unsigned char channel_key[32];
+ }
- if (channel->mode_data.cipher) {
- silc_free(channel->mode_data.cipher);
- channel->mode_data.cipher = NULL;
- channel->mode_data.key_len = 0;
+ 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);
+ goto out;
}
- /* Generate new cipher and key for the channel */
-
- /* XXX Duplicated code, make own function for this!! */
-
- /* Delete old cipher and allocate default one */
- silc_cipher_free(channel->channel_key);
- if (!channel->cipher)
- silc_cipher_alloc("twofish", &channel->channel_key);
- else
- silc_cipher_alloc(channel->cipher, &channel->channel_key);
-
- /* Re-generate channel key */
- key_len = channel->key_len / 8;
- for (i = 0; i < key_len; i++)
- channel_key[i] = silc_rng_get_byte(server->rng);
- channel->channel_key->cipher->set_key(channel->channel_key->context,
- channel_key, key_len);
- memset(channel->key, 0, key_len);
- silc_free(channel->key);
- channel->key = silc_calloc(key_len, sizeof(*channel->key));
- memcpy(channel->key, channel_key, key_len);
- memset(channel_key, 0, sizeof(channel_key));
-
- /* 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,
- key_len, 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->id_entry->router->connection,
- SILC_PACKET_CHANNEL_KEY, 0, packet->data,
- packet->len, TRUE);
- } else {
-
+ 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);
+ 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);
+
+ /* Demote to normal user */
+ chl->mode &= ~SILC_CHANNEL_UMODE_CHANOP;
+ notify = TRUE;
}
}
- /* Finally, set the mode */
- channel->mode = mode_mask;
+ idp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
+ tmp_id = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
- /* Send CMODE_CHANGE notify */
- cidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
- silc_server_send_notify_to_channel(server, channel,
- SILC_NOTIFY_TYPE_CMODE_CHANGE, 2,
- cidp->data, cidp->len,
- tmp_mask, tmp_len);
- silc_free(cidp);
+ /* 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,
+ idp->data, idp->len,
+ tmp_mask, 4,
+ tmp_id, tmp_len);
+
+ /* 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, SILC_ID_CLIENT_LEN,
+ target_client->id,
+ SILC_ID_CLIENT_LEN);
+ }
/* Send command reply to sender */
- packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CMODE,
- SILC_STATUS_OK, 0, 1,
- 2, tmp_mask, 4);
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CUMODE,
+ SILC_STATUS_OK, ident, 2,
+ 2, tmp_mask, 4,
+ 3, 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_server_command_free(cmd);
}
-/* Server side of CUMODE command. Changes client's mode on a channel. */
+/* Server side of KICK command. Kicks client out of channel. */
-SILC_SERVER_CMD_FUNC(cumode)
+SILC_SERVER_CMD_FUNC(kick)
{
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
- SilcSocketConnection sock = cmd->sock;
SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ SilcClientEntry target_client;
SilcChannelID *channel_id;
SilcClientID *client_id;
SilcChannelEntry channel;
- SilcClientEntry target_client;
SilcChannelClientEntry chl;
- SilcBuffer packet, idp;
- unsigned char *tmp, *tmp_id, *tmp_mask;
- unsigned int argc, target_mask, sender_mask, tmp_len;
- int i, notify = FALSE;
+ SilcBuffer idp;
+ uint32 tmp_len;
+ unsigned char *tmp, *comment;
- SILC_LOG_DEBUG(("Start"));
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_LEAVE, cmd, 1, 3);
- argc = silc_argument_get_arg_num(cmd->args);
- if (argc < 3) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- goto out;
- }
- if (argc > 3) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_TOO_MANY_PARAMS);
+ /* 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);
goto out;
}
-
- /* Get Channel ID */
- tmp_id = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
- if (!tmp_id) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ channel_id = silc_id_payload_parse_id(tmp, tmp_len);
+ if (!channel_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
SILC_STATUS_ERR_NO_CHANNEL_ID);
goto out;
}
- channel_id = silc_id_payload_parse_id(tmp_id, tmp_len);
/* Get channel entry */
- channel = silc_idlist_find_channel_by_id(server->local_list, channel_id);
+ channel = silc_idlist_find_channel_by_id(server->local_list,
+ channel_id, NULL);
if (!channel) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NO_SUCH_CHANNEL);
- goto out;
+ channel = silc_idlist_find_channel_by_id(server->local_list,
+ channel_id, NULL);
+ if (!channel) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ goto out;
+ }
}
/* Check whether sender is on the channel */
if (!silc_server_client_on_channel(client, channel)) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
SILC_STATUS_ERR_NOT_ON_CHANNEL);
goto out;
}
- /* Check that client has rights to change other's rights */
+ /* 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_CHANFO) &&
- !(chl->mode & SILC_CHANNEL_UMODE_CHANOP)) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ 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;
}
-
- sender_mask = chl->mode;
break;
}
}
- /* 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);
+ /* Get target Client ID */
+ tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+ if (!tmp) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
+ SILC_STATUS_ERR_NO_CLIENT_ID);
goto out;
}
- SILC_GET32_MSB(target_mask, tmp_mask);
-
- /* Get target Client ID */
- 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_CHANNEL_ID);
+ client_id = silc_id_payload_parse_id(tmp, tmp_len);
+ if (!client_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
+ SILC_STATUS_ERR_NO_CLIENT_ID);
goto out;
}
- client_id = silc_id_payload_parse_id(tmp_id, tmp_len);
/* Get target client's entry */
- target_client = silc_idlist_find_client_by_id(server->local_list, client_id);
- if (!client) {
- /* XXX If target client is not one of mine send to primary route */
+ target_client = silc_idlist_find_client_by_id(server->local_list,
+ client_id, NULL);
+ if (!target_client) {
+ target_client = silc_idlist_find_client_by_id(server->global_list,
+ client_id, 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)) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
SILC_STATUS_ERR_USER_NOT_ON_CHANNEL);
goto out;
}
+ /* Get comment */
+ tmp_len = 0;
+ comment = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
+ if (tmp_len > 128)
+ comment = NULL;
+
+ /* Send command reply to sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
+ SILC_STATUS_OK);
+
+ /* Send KICKED notify to local clients on the channel */
+ idp = silc_id_payload_encode(target_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_buffer_free(idp);
+
+ /* Remove the client from the channel. If the channel does not exist
+ 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);
+
+ if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
+ /* 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 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;
+ uint32 tmp_len;
+ SilcServerConfigSectionAdminConnection *admin;
+ SilcIDListData idata = (SilcIDListData)client;
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_OPER, cmd, 1, 2);
+
+ if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
+ goto out;
+
+ /* 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);
+ goto out;
+ }
+
+ /* Get the admin configuration */
+ admin = silc_server_config_find_admin(server->config, cmd->sock->ip,
+ username, client->nickname);
+ if (!admin) {
+ admin = silc_server_config_find_admin(server->config, cmd->sock->hostname,
+ username, client->nickname);
+ if (!admin) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
+ SILC_STATUS_ERR_AUTH_FAILED);
+ 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);
+ goto out;
+ }
+
+ /* Verify the authentication data */
+ if (!silc_auth_verify_data(auth, tmp_len, admin->auth_meth,
+ admin->auth_data, admin->auth_data_len,
+ idata->hash, client->id, SILC_ID_CLIENT)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
+ SILC_STATUS_ERR_AUTH_FAILED);
+ goto out;
+ }
+
+ /* Client is now server operator */
+ client->mode |= SILC_UMODE_SERVER_OPERATOR;
+
+ /* Send UMODE change to primary router */
+ if (!server->standalone)
+ silc_server_send_notify_umode(server, server->router->connection, TRUE,
+ client->id, SILC_ID_CLIENT_LEN,
+ client->mode);
+
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
+ SILC_STATUS_OK);
+
+ out:
+ silc_server_command_free(cmd);
+}
+
+/* Server side of SILCOPER command. Client uses this comand to obtain router
+ operator privileges to this router. */
+
+SILC_SERVER_CMD_FUNC(silcoper)
+{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ unsigned char *username, *auth;
+ uint32 tmp_len;
+ SilcServerConfigSectionAdminConnection *admin;
+ SilcIDListData idata = (SilcIDListData)client;
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_SILCOPER, cmd, 1, 2);
+
+ if (server->server_type == SILC_SERVER)
+ goto out;
+
+ if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
+ goto out;
+
+ /* 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);
+ goto out;
+ }
+
+ /* Get the admin configuration */
+ admin = silc_server_config_find_admin(server->config, cmd->sock->ip,
+ username, client->nickname);
+ if (!admin) {
+ admin = silc_server_config_find_admin(server->config, cmd->sock->hostname,
+ username, client->nickname);
+ if (!admin) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
+ SILC_STATUS_ERR_AUTH_FAILED);
+ 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_SILCOPER,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ goto out;
+ }
+
+ /* Verify the authentication data */
+ if (!silc_auth_verify_data(auth, tmp_len, admin->auth_meth,
+ admin->auth_data, admin->auth_data_len,
+ idata->hash, client->id, SILC_ID_CLIENT)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
+ SILC_STATUS_ERR_AUTH_FAILED);
+ goto out;
+ }
+
+ /* Client is now router operator */
+ client->mode |= SILC_UMODE_ROUTER_OPERATOR;
+
+ /* Send UMODE change to primary router */
+ if (!server->standalone)
+ silc_server_send_notify_umode(server, server->router->connection, TRUE,
+ client->id, SILC_ID_CLIENT_LEN,
+ client->mode);
+
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
+ SILC_STATUS_OK);
+
+ out:
+ silc_server_command_free(cmd);
+}
+
+/* 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;
+ uint32 tmp_len;
+ uint32 port = SILC_PORT;
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_CONNECT, cmd, 1, 2);
+
+ if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
+ 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);
+ goto out;
+ }
+
+ 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);
+ 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_CONNECT,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ 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_CONNECT,
+ SILC_STATUS_OK);
+
+ out:
+ silc_server_command_free(cmd);
+}
+
+/* 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;
+ SilcChannelEntry channel;
+ SilcChannelClientEntry chl;
+ SilcChannelID *channel_id = NULL;
+ unsigned char *id, *add, *del;
+ uint32 id_len, tmp_len;
+ uint16 ident = silc_command_get_ident(cmd->payload);
+
+ if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
+ goto out;
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(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);
+ if (!channel_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
+ SILC_STATUS_ERR_NO_CHANNEL_ID);
+ 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);
+ goto out;
+ }
+ }
+
+ /* Check whether this client is on the channel */
+ if (!silc_server_client_on_channel(client, channel)) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
+ SILC_STATUS_ERR_NOT_ON_CHANNEL);
+ 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)
+ if (chl->client == client)
break;
- /*
- * 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) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
- SILC_STATUS_ERR_NOT_YOU);
+ /* 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);
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;
- } 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);
- goto out;
- }
- }
+ /* Get the new ban and add it to the ban list */
+ add = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
+ if (add) {
+ if (!channel->ban_list)
+ channel->ban_list = silc_calloc(tmp_len + 2, sizeof(*channel->ban_list));
+ else
+ channel->ban_list = silc_realloc(channel->ban_list,
+ sizeof(*channel->ban_list) *
+ (tmp_len +
+ strlen(channel->ban_list) + 2));
+ if (add[tmp_len - 1] == ',')
+ add[tmp_len - 1] = '\0';
+
+ strncat(channel->ban_list, add, tmp_len);
+ strncat(channel->ban_list, ",", 1);
}
- if (target_mask & SILC_CHANNEL_UMODE_CHANOP) {
- /* Promote to operator */
- if (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP)) {
- chl->mode |= SILC_CHANNEL_UMODE_CHANOP;
- notify = TRUE;
- }
- } else {
- if (chl->mode & SILC_CHANNEL_UMODE_CHANOP) {
- /* Demote to normal user */
- chl->mode &= ~SILC_CHANNEL_UMODE_CHANOP;
- notify = TRUE;
+ /* Get the ban to be removed and remove it from the list */
+ del = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
+ if (del && channel->ban_list) {
+ char *start, *end, *n;
+
+ if (!strncmp(channel->ban_list, del, strlen(channel->ban_list) - 1)) {
+ silc_free(channel->ban_list);
+ channel->ban_list = NULL;
+ } else {
+ start = strstr(channel->ban_list, del);
+ if (start && strlen(start) >= tmp_len) {
+ end = start + tmp_len;
+ n = silc_calloc(strlen(channel->ban_list) - tmp_len, sizeof(*n));
+ strncat(n, channel->ban_list, start - channel->ban_list);
+ strncat(n, end + 1, ((channel->ban_list + strlen(channel->ban_list)) -
+ end) - 1);
+ silc_free(channel->ban_list);
+ channel->ban_list = n;
+ }
}
}
- /* Send notify to channel, notify only if mode was actually changed. */
- if (notify) {
- idp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
- silc_server_send_notify_to_channel(server, channel,
- SILC_NOTIFY_TYPE_CUMODE_CHANGE, 3,
- idp->data, idp->len,
- tmp_mask, 4, tmp_id, tmp_len);
- silc_buffer_free(idp);
- }
+ /* Send the BAN notify type to our primary router. */
+ if (!server->standalone && (add || del))
+ silc_server_send_notify_ban(server, server->router->connection,
+ server->server_type == SILC_ROUTER ?
+ TRUE : FALSE, channel, add, del);
+
+ /* Send the reply back to the client */
+ if (channel->ban_list)
+ packet =
+ silc_command_reply_payload_encode_va(SILC_COMMAND_BAN,
+ SILC_STATUS_OK, ident, 2,
+ 2, id, id_len,
+ 3, channel->ban_list,
+ strlen(channel->ban_list) - 1);
+ else
+ packet =
+ silc_command_reply_payload_encode_va(SILC_COMMAND_BAN,
+ SILC_STATUS_OK, ident, 1,
+ 2, id, id_len);
- /* Send command reply to sender */
- packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CUMODE,
- SILC_STATUS_OK, 0, 2,
- 2, tmp_mask, 4,
- 3, 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);
out:
+ if (channel_id)
+ silc_free(channel_id);
silc_server_command_free(cmd);
}
-/* Server side of KICK command. Kicks client out of channel. */
-
-SILC_SERVER_CMD_FUNC(kick)
+/* Server side command of CLOSE. Closes connection to a specified server. */
+
+SILC_SERVER_CMD_FUNC(close)
{
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
- SilcSocketConnection sock = cmd->sock;
SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+ SilcServerEntry server_entry;
+ SilcSocketConnection sock;
+ unsigned char *tmp;
+ uint32 tmp_len;
+ unsigned char *name;
+ uint32 port = SILC_PORT;
-}
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_CLOSE, cmd, 1, 2);
-SILC_SERVER_CMD_FUNC(restart)
-{
-}
-
-SILC_SERVER_CMD_FUNC(close)
-{
+ if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
+ 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);
+ 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 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, NULL);
+ if (!server_entry) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
+ SILC_STATUS_ERR_NO_SERVER_ID);
+ goto out;
+ }
+
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
+ SILC_STATUS_OK);
+
+ /* Close the connection to the server */
+ sock = (SilcSocketConnection)server_entry->connection;
+ silc_server_free_sock_user_data(server, sock);
+ 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(die)
+SILC_SERVER_CMD_FUNC(shutdown)
{
+ SilcServerCommandContext cmd = (SilcServerCommandContext)context;
+ SilcServer server = cmd->server;
+ SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
+
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_SHUTDOWN, cmd, 0, 0);
+
+ if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
+ 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;
+ }
+
+ /* Send reply to the sender */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_SHUTDOWN,
+ SILC_STATUS_OK);
+
+ /* Then, gracefully, or not, bring the server down. */
+ silc_server_stop(server);
+ exit(0);
+
+ out:
+ silc_server_command_free(cmd);
}
-SILC_SERVER_CMD_FUNC(silcoper)
-{
-}
-
/* 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, argc, key_len, len;
- unsigned char *tmp, channel_key[32];
-
- SILC_LOG_DEBUG(("Start"));
+ uint32 len;
+ unsigned char *tmp;
- argc = silc_argument_get_arg_num(cmd->args);
- if (argc < 1) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- goto out;
- }
- if (argc > 2) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
- SILC_STATUS_ERR_TOO_MANY_PARAMS);
- goto out;
- }
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_LEAVE, cmd, 1, 2);
/* Get Channel ID */
tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
goto out;
}
id = silc_id_payload_parse_id(tmp, len);
+ if (!id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
+ SILC_STATUS_ERR_NO_CHANNEL_ID);
+ goto out;
+ }
/* Get channel entry */
- channel = silc_idlist_find_channel_by_id(server->local_list, id);
+ channel = silc_idlist_find_channel_by_id(server->local_list, id, NULL);
if (!channel) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
- SILC_STATUS_ERR_NO_SUCH_CHANNEL);
- 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);
+ goto out;
+ }
}
/* Check whether this client is on the channel */
}
/* Notify routers that they should remove this client from their list
- of clients on the channel. */
+ of clients on the channel. Send LEAVE notify type. */
if (!server->standalone)
- silc_server_send_remove_channel_user(server,
- server->id_entry->router->connection,
- server->server_type == SILC_ROUTER ?
- TRUE : FALSE, id_entry->id, id);
+ silc_server_send_notify_leave(server, server->router->connection,
+ server->server_type == SILC_ROUTER ?
+ TRUE : FALSE, channel, id_entry->id,
+ SILC_ID_CLIENT_LEN);
- /* 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);
- /* If the channel does not exist anymore we won't send anything */
- if (!i)
- goto out;
-
- /* Re-generate channel key */
- key_len = channel->key_len / 8;
- for (i = 0; i < key_len; i++)
- channel_key[i] = silc_rng_get_byte(server->rng);
- channel->channel_key->cipher->set_key(channel->channel_key->context,
- channel_key, key_len);
- memset(channel->key, 0, key_len);
- silc_free(channel->key);
- channel->key = silc_calloc(key_len, sizeof(*channel->key));
- memcpy(channel->key, channel_key, key_len);
- memset(channel_key, 0, sizeof(channel_key));
-
- /* 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,
- key_len, 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->id_entry->router->connection,
- SILC_PACKET_CHANNEL_KEY, 0, packet->data,
- packet->len, TRUE);
- } else {
-
- }
+ /* 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;
- /* 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);
+ if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
+ /* Re-generate channel key */
+ silc_server_create_channel_key(server, channel, 0);
- silc_buffer_free(packet);
- silc_free(id);
+ /* Send the channel key */
+ silc_server_send_channel_key(server, NULL, channel,
+ server->server_type == SILC_ROUTER ?
+ FALSE : !server->standalone);
+ }
out:
+ if (id)
+ silc_free(id);
silc_server_command_free(cmd);
}
-/* Server side of command NAMES. Resolves clients and their names currently
- joined on the requested channel. The name list is sent back to the
- client. */
+/* Server side of command USERS. Resolves clients and their USERS currently
+ joined on the requested channel. The list of Client ID's and their modes
+ on the channel is sent back. */
-SILC_SERVER_CMD_FUNC(names)
+SILC_SERVER_CMD_FUNC(users)
{
SilcServerCommandContext cmd = (SilcServerCommandContext)context;
SilcServer server = cmd->server;
SilcChannelEntry channel;
- SilcChannelClientEntry chl;
SilcChannelID *id;
SilcBuffer packet;
- unsigned int i, len, len2, tmp_len, argc;
- unsigned char *tmp;
- char *name_list = NULL, *n;
+ unsigned char *channel_id;
+ uint32 channel_id_len;
SilcBuffer client_id_list;
SilcBuffer client_mode_list;
+ unsigned char lc[4];
+ uint32 list_count = 0;
+ uint16 ident = silc_command_get_ident(cmd->payload);
- SILC_LOG_DEBUG(("Start"));
+ SILC_SERVER_COMMAND_CHECK_ARGC(SILC_COMMAND_USERS, cmd, 1, 1);
- argc = silc_argument_get_arg_num(cmd->args);
- if (argc < 1) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_NAMES,
- SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
- goto out;
- }
- if (argc > 2) {
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_NAMES,
- SILC_STATUS_ERR_TOO_MANY_PARAMS);
+ /* Get Channel ID */
+ channel_id = silc_argument_get_arg_type(cmd->args, 1, &channel_id_len);
+ if (!channel_id) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
+ SILC_STATUS_ERR_NO_CHANNEL_ID);
goto out;
}
-
- /* 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_LEAVE,
+ 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;
}
- id = silc_id_payload_parse_id(tmp, tmp_len);
- /* Check whether the channel exists. If we are normal server and the
- channel does not exist we will send this same command to our router
- which will know if the channel exists. */
- channel = silc_idlist_find_channel_by_id(server->local_list, id);
+ /* 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) {
- /* XXX Send names command */
-
+ if (server->server_type == SILC_SERVER && !server->standalone &&
+ !cmd->pending) {
+ SilcBuffer tmpbuf;
+
+ silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
+ tmpbuf = silc_command_payload_encode_payload(cmd->payload);
+
+ /* Send USERS command */
+ silc_server_packet_send(server, server->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_USERS,
+ silc_command_get_ident(cmd->payload),
+ silc_server_command_destructor,
+ silc_server_command_users,
+ silc_server_command_dup(cmd));
cmd->pending = TRUE;
- silc_server_command_pending(SILC_COMMAND_NAMES,
- silc_server_command_names, context);
+ silc_command_set_ident(cmd->payload, ident);
+
+ silc_buffer_free(tmpbuf);
+ silc_free(id);
return;
}
- silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
- SILC_STATUS_ERR_NO_SUCH_CHANNEL);
- goto out;
- }
-
- /* Assemble the name list now */
- name_list = NULL;
- len = 0;
- silc_list_start(channel->user_list);
- i = 0;
- while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END) {
- n = chl->client->nickname;
- if (n) {
- len2 = strlen(n);
- len += len2;
- name_list = silc_realloc(name_list, sizeof(*name_list) * (len + 1));
- memcpy(name_list + (len - len2), n, len2);
- name_list[len] = 0;
-
- if (i == silc_list_count(channel->user_list) - 1)
- break;
- memcpy(name_list + len, ",", 1);
- len++;
- i++;
+ /* We are router and we will check the global list as well. */
+ channel = silc_idlist_find_channel_by_id(server->global_list, id, NULL);
+ if (!channel) {
+ /* Channel really does not exist */
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
+ SILC_STATUS_ERR_NO_SUCH_CHANNEL);
+ goto out;
}
}
- if (!name_list)
- name_list = "";
-
- /* Assemble the Client ID list now */
- client_id_list = silc_buffer_alloc((SILC_ID_CLIENT_LEN + 4) *
- silc_list_count(channel->user_list));
- silc_buffer_pull_tail(client_id_list, SILC_BUFFER_END(client_id_list));
- silc_list_start(channel->user_list);
- while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END) {
- SilcBuffer idp;
- idp = silc_id_payload_encode(chl->client->id, SILC_ID_CLIENT);
- silc_buffer_format(client_id_list,
- SILC_STR_UI_XNSTRING(idp->data, idp->len),
- SILC_STR_END);
- silc_buffer_pull(client_id_list, idp->len);
- silc_buffer_free(idp);
- }
- silc_buffer_push(client_id_list,
- client_id_list->data - client_id_list->head);
+ /* Get the users list */
+ silc_server_get_users_on_channel(server, channel, &client_id_list,
+ &client_mode_list, &list_count);
- /* Assemble mode list */
- client_mode_list = silc_buffer_alloc(4 *
- silc_list_count(channel->user_list));
- silc_buffer_pull_tail(client_mode_list, SILC_BUFFER_END(client_mode_list));
- silc_list_start(channel->user_list);
- while ((chl = silc_list_get(channel->user_list)) != SILC_LIST_END) {
- SILC_PUT32_MSB(chl->mode, client_mode_list->data);
- silc_buffer_pull(client_mode_list, 4);
- }
- silc_buffer_push(client_mode_list,
- client_mode_list->data - client_mode_list->head);
+ /* List count */
+ SILC_PUT32_MSB(list_count, lc);
/* Send reply */
- packet = silc_command_reply_payload_encode_va(SILC_COMMAND_NAMES,
- SILC_STATUS_OK, 0, 4,
- 2, tmp, tmp_len,
- 3, name_list,
- strlen(name_list),
+ packet = silc_command_reply_payload_encode_va(SILC_COMMAND_USERS,
+ SILC_STATUS_OK, ident, 4,
+ 2, channel_id, channel_id_len,
+ 3, lc, 4,
4, client_id_list->data,
client_id_list->len,
5, client_mode_list->data,
packet->data, packet->len, FALSE);
silc_buffer_free(packet);
- silc_free(name_list);
silc_buffer_free(client_id_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;
+ uint16 ident = silc_command_get_ident(cmd->payload);
+ unsigned char *tmp;
+ uint32 tmp_len;
+ SilcBuffer pk;
+ SilcIdType id_type;
+
+ 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);
+ goto out;
+ }
+ idp = silc_id_payload_parse_data(tmp, tmp_len);
+ if (!idp) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
+ SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
+ 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, NULL);
+
+ if ((!client && !cmd->pending && !server->standalone) ||
+ (client && !client->connection)) {
+ SilcBuffer tmpbuf;
+ uint16 old_ident;
+ SilcSocketConnection dest_sock;
+
+ dest_sock = silc_server_get_client_route(server, NULL, 0,
+ client_id, NULL);
+ if (!dest_sock)
+ goto out;
+
+ 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);
+
+ 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_destructor,
+ silc_server_command_getkey,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+
+ silc_command_set_ident(cmd->payload, old_ident);
+ silc_buffer_free(tmpbuf);
+ return;
+ }
+
+ if (!client && cmd->pending) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
+ SILC_STATUS_ERR_NO_SUCH_CLIENT_ID);
+ goto out;
+ }
+
+ /* The client is locally connected, just get the public key and
+ send it back. */
+ tmp = silc_pkcs_public_key_encode(client->data.public_key, &tmp_len);
+ pk = silc_buffer_alloc(4 + tmp_len);
+ silc_buffer_pull_tail(pk, SILC_BUFFER_END(pk));
+ silc_buffer_format(pk,
+ SILC_STR_UI_SHORT(tmp_len),
+ SILC_STR_UI_SHORT(SILC_SKE_PK_TYPE_SILC),
+ SILC_STR_UI_XNSTRING(tmp, tmp_len),
+ SILC_STR_END);
+ silc_free(tmp);
+
+ } 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, NULL);
+
+ if ((!server_entry && !cmd->pending && !server->standalone) ||
+ (server_entry && !server_entry->connection)) {
+ SilcBuffer tmpbuf;
+ uint16 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);
+
+ silc_server_packet_send(server, 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_GETKEY,
+ silc_command_get_ident(cmd->payload),
+ silc_server_command_destructor,
+ silc_server_command_getkey,
+ silc_server_command_dup(cmd));
+ cmd->pending = TRUE;
+
+ silc_command_set_ident(cmd->payload, old_ident);
+ silc_buffer_free(tmpbuf);
+ return;
+ }
+
+ if (!server_entry && cmd->pending) {
+ silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
+ SILC_STATUS_ERR_NO_SUCH_SERVER_ID);
+ goto out;
+ }
+
+ /* The client is locally connected, just get the public key and
+ send it back. */
+ tmp = silc_pkcs_public_key_encode(server_entry->data.public_key, &tmp_len);
+ pk = silc_buffer_alloc(4 + tmp_len);
+ silc_buffer_pull_tail(pk, SILC_BUFFER_END(pk));
+ silc_buffer_format(pk,
+ SILC_STR_UI_SHORT(tmp_len),
+ SILC_STR_UI_SHORT(SILC_SKE_PK_TYPE_SILC),
+ SILC_STR_UI_XNSTRING(tmp, tmp_len),
+ SILC_STR_END);
+ silc_free(tmp);
+ } 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, ident, 2,
+ 2, tmp, tmp_len,
+ 3, pk->data, pk->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(pk);
+
+ out:
+ if (idp)
+ silc_id_payload_free(idp);
+ silc_free(client_id);
+ silc_free(server_id);
+ silc_server_command_free(cmd);
+}
projects / silc.git / blobdiff