5 Author: Pekka Riikonen <priikone@silcnet.org>
7 Copyright (C) 1997 - 2002 Pekka Riikonen
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
22 #include "serverincludes.h"
23 #include "server_internal.h"
25 static int silc_server_is_registered(SilcServer server,
26 SilcSocketConnection sock,
27 SilcServerCommandContext cmd,
30 silc_server_command_send_status_reply(SilcServerCommandContext cmd,
35 silc_server_command_send_status_data(SilcServerCommandContext cmd,
40 const unsigned char *arg,
43 silc_server_command_pending_error_check(SilcServerCommandContext cmd,
44 SilcServerCommandReplyContext cmdr,
46 SILC_TASK_CALLBACK(silc_server_command_process_timeout);
48 /* Server command list. */
49 SilcServerCommand silc_command_list[] =
51 SILC_SERVER_CMD(whois, WHOIS, SILC_CF_LAG | SILC_CF_REG),
52 SILC_SERVER_CMD(whowas, WHOWAS, SILC_CF_LAG | SILC_CF_REG),
53 SILC_SERVER_CMD(identify, IDENTIFY, SILC_CF_LAG | SILC_CF_REG),
54 SILC_SERVER_CMD(nick, NICK, SILC_CF_LAG_STRICT | SILC_CF_REG),
55 SILC_SERVER_CMD(list, LIST, SILC_CF_LAG_STRICT | SILC_CF_REG),
56 SILC_SERVER_CMD(topic, TOPIC, SILC_CF_LAG | SILC_CF_REG),
57 SILC_SERVER_CMD(invite, INVITE, SILC_CF_LAG | SILC_CF_REG),
58 SILC_SERVER_CMD(quit, QUIT, SILC_CF_LAG | SILC_CF_REG),
59 SILC_SERVER_CMD(kill, KILL, SILC_CF_LAG_STRICT | SILC_CF_REG | SILC_CF_OPER),
60 SILC_SERVER_CMD(info, INFO, SILC_CF_LAG | SILC_CF_REG),
61 SILC_SERVER_CMD(stats, STATS, SILC_CF_LAG | SILC_CF_REG),
62 SILC_SERVER_CMD(ping, PING, SILC_CF_LAG | SILC_CF_REG),
63 SILC_SERVER_CMD(oper, OPER, SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
64 SILC_SERVER_CMD(join, JOIN, SILC_CF_LAG_STRICT | SILC_CF_REG),
65 SILC_SERVER_CMD(motd, MOTD, SILC_CF_LAG | SILC_CF_REG),
66 SILC_SERVER_CMD(umode, UMODE, SILC_CF_LAG | SILC_CF_REG),
67 SILC_SERVER_CMD(cmode, CMODE, SILC_CF_LAG_STRICT | SILC_CF_REG),
68 SILC_SERVER_CMD(cumode, CUMODE, SILC_CF_LAG | SILC_CF_REG),
69 SILC_SERVER_CMD(kick, KICK, SILC_CF_LAG_STRICT | SILC_CF_REG),
70 SILC_SERVER_CMD(ban, BAN, SILC_CF_LAG_STRICT | SILC_CF_REG),
71 SILC_SERVER_CMD(detach, DETACH, SILC_CF_LAG_STRICT | SILC_CF_REG),
72 SILC_SERVER_CMD(watch, WATCH, SILC_CF_LAG | SILC_CF_REG),
73 SILC_SERVER_CMD(silcoper, SILCOPER,
74 SILC_CF_LAG | SILC_CF_REG | SILC_CF_SILC_OPER),
75 SILC_SERVER_CMD(leave, LEAVE, SILC_CF_LAG_STRICT | SILC_CF_REG),
76 SILC_SERVER_CMD(users, USERS, SILC_CF_LAG | SILC_CF_REG),
77 SILC_SERVER_CMD(getkey, GETKEY, SILC_CF_LAG | SILC_CF_REG),
79 SILC_SERVER_CMD(connect, PRIV_CONNECT,
80 SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
81 SILC_SERVER_CMD(close, PRIV_CLOSE,
82 SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
83 SILC_SERVER_CMD(shutdown, PRIV_SHUTDOWN, SILC_CF_LAG | SILC_CF_REG |
89 /* Performs several checks to the command. It first checks whether this
90 command was called as pending command callback. If it was then it checks
91 whether error occurred in the command reply where the pending command
94 It also checks that the requested command includes correct amount
96 #define SILC_SERVER_COMMAND_CHECK(command, context, min, max) \
100 SILC_LOG_DEBUG(("Start")); \
102 if (silc_server_command_pending_error_check(cmd, context2, command)) { \
103 silc_server_command_free(cmd); \
107 _argc = silc_argument_get_arg_num(cmd->args); \
109 silc_server_command_send_status_reply(cmd, command, \
110 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, \
112 silc_server_command_free(cmd); \
116 silc_server_command_send_status_reply(cmd, command, \
117 SILC_STATUS_ERR_TOO_MANY_PARAMS, \
119 silc_server_command_free(cmd); \
124 /* Returns TRUE if the connection is registered. Unregistered connections
125 usually cannot send commands hence the check. */
127 static int silc_server_is_registered(SilcServer server,
128 SilcSocketConnection sock,
129 SilcServerCommandContext cmd,
132 SilcIDListData idata = (SilcIDListData)sock->user_data;
137 if (idata->status & SILC_IDLIST_STATUS_REGISTERED)
140 silc_server_command_send_status_reply(cmd, command,
141 SILC_STATUS_ERR_NOT_REGISTERED, 0);
145 /* Internal context to hold data when executed command with timeout. */
147 SilcServerCommandContext ctx;
148 SilcServerCommand *cmd;
149 } *SilcServerCommandTimeout;
151 /* Timeout callback to process commands with timeout for client. Client's
152 commands are always executed with timeout. */
154 SILC_TASK_CALLBACK(silc_server_command_process_timeout)
156 SilcServerCommandTimeout timeout = (SilcServerCommandTimeout)context;
157 SilcClientEntry client = (SilcClientEntry)timeout->ctx->sock->user_data;
160 silc_server_command_free(timeout->ctx);
164 /* Update access time */
165 client->last_command = time(NULL);
167 if (!(timeout->cmd->flags & SILC_CF_REG))
168 timeout->cmd->cb(timeout->ctx, NULL);
169 else if (silc_server_is_registered(timeout->ctx->server,
173 timeout->cmd->cb(timeout->ctx, NULL);
175 silc_server_command_free(timeout->ctx);
180 /* Processes received command packet. */
182 void silc_server_command_process(SilcServer server,
183 SilcSocketConnection sock,
184 SilcPacketContext *packet)
186 SilcServerCommandContext ctx;
187 SilcServerCommand *cmd;
190 /* Allocate command context. This must be free'd by the
191 command routine receiving it. */
192 ctx = silc_server_command_alloc();
193 ctx->server = server;
194 ctx->sock = silc_socket_dup(sock);
195 ctx->packet = silc_packet_context_dup(packet); /* Save original packet */
197 /* Parse the command payload in the packet */
198 ctx->payload = silc_command_payload_parse(packet->buffer->data,
199 packet->buffer->len);
201 SILC_LOG_ERROR(("Bad command payload, packet dropped"));
202 silc_buffer_free(packet->buffer);
203 silc_packet_context_free(packet);
204 silc_socket_free(ctx->sock);
208 ctx->args = silc_command_get_args(ctx->payload);
210 /* Get the command */
211 command = silc_command_get(ctx->payload);
212 for (cmd = silc_command_list; cmd->cb; cmd++)
213 if (cmd->cmd == command)
216 if (!cmd || !cmd->cb) {
217 silc_server_command_send_status_reply(ctx, command,
218 SILC_STATUS_ERR_UNKNOWN_COMMAND, 0);
219 silc_server_command_free(ctx);
223 /* Execute client's commands always with timeout. Normally they are
224 executed with zero (0) timeout but if client is sending command more
225 frequently than once in 2 seconds, then the timeout may be 0 to 2
227 if (sock->type == SILC_SOCKET_TYPE_CLIENT) {
228 SilcClientEntry client = (SilcClientEntry)sock->user_data;
229 SilcServerCommandTimeout timeout = silc_calloc(1, sizeof(*timeout));
235 if (client->last_command && (time(NULL) - client->last_command) < 2) {
236 client->fast_command++;
239 if (client->fast_command - 2 <= 0)
240 client->fast_command = 0;
242 client->fast_command -= 2;
246 if (!fast && ((cmd->flags & SILC_CF_LAG_STRICT) ||
247 (client->fast_command > 5 && cmd->flags & SILC_CF_LAG)))
248 silc_schedule_task_add(server->schedule, sock->sock,
249 silc_server_command_process_timeout, timeout,
250 (client->fast_command < 3 ? 0 :
251 2 - (time(NULL) - client->last_command)),
252 (client->fast_command < 3 ? 200000 : 0),
253 SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
255 silc_schedule_task_add(server->schedule, sock->sock,
256 silc_server_command_process_timeout, timeout,
257 0, 1, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
261 /* Execute for server */
263 if (!(cmd->flags & SILC_CF_REG))
265 else if (silc_server_is_registered(server, sock, ctx, cmd->cmd))
268 silc_server_command_free(ctx);
271 /* Allocate Command Context */
273 SilcServerCommandContext silc_server_command_alloc()
275 SilcServerCommandContext ctx = silc_calloc(1, sizeof(*ctx));
280 /* Free's the command context allocated before executing the command */
282 void silc_server_command_free(SilcServerCommandContext ctx)
285 SILC_LOG_DEBUG(("Command context %p refcnt %d->%d", ctx, ctx->users + 1,
287 if (ctx->users < 1) {
289 silc_command_payload_free(ctx->payload);
291 silc_packet_context_free(ctx->packet);
293 silc_socket_free(ctx->sock); /* Decrease reference counter */
298 /* Duplicate Command Context by adding reference counter. The context won't
299 be free'd untill it hits zero. */
301 SilcServerCommandContext
302 silc_server_command_dup(SilcServerCommandContext ctx)
305 SILC_LOG_DEBUG(("Command context %p refcnt %d->%d", ctx, ctx->users - 1,
310 /* Add new pending command to be executed when reply to a command has been
311 received. The `reply_cmd' is the command that will call the `callback'
312 with `context' when reply has been received. It can be SILC_COMMAND_NONE
313 to match any command with the `ident'. If `ident' is non-zero
314 the `callback' will be executed when received reply with command
315 identifier `ident'. If there already exists pending command for the
316 specified command, ident, callback and context this function has no
319 bool silc_server_command_pending(SilcServer server,
320 SilcCommand reply_cmd,
322 SilcCommandCb callback,
325 SilcServerCommandPending *reply;
327 /* Check whether identical pending already exists for same command,
328 ident, callback and callback context. If it does then it would be
329 error to register it again. */
330 silc_dlist_start(server->pending_commands);
331 while ((reply = silc_dlist_get(server->pending_commands)) != SILC_LIST_END) {
332 if (reply->reply_cmd == reply_cmd && reply->ident == ident &&
333 reply->callback == callback && reply->context == context)
337 reply = silc_calloc(1, sizeof(*reply));
338 reply->reply_cmd = reply_cmd;
339 reply->ident = ident;
340 reply->context = context;
341 reply->callback = callback;
342 silc_dlist_add(server->pending_commands, reply);
347 /* Deletes pending command by reply command type. */
349 void silc_server_command_pending_del(SilcServer server,
350 SilcCommand reply_cmd,
353 SilcServerCommandPending *r;
355 silc_dlist_start(server->pending_commands);
356 while ((r = silc_dlist_get(server->pending_commands)) != SILC_LIST_END) {
357 if (r->reply_cmd == reply_cmd && r->ident == ident) {
358 silc_dlist_del(server->pending_commands, r);
364 /* Checks for pending commands and marks callbacks to be called from
365 the command reply function. Returns TRUE if there were pending command. */
367 SilcServerCommandPendingCallbacks
368 silc_server_command_pending_check(SilcServer server,
369 SilcServerCommandReplyContext ctx,
372 SilcUInt32 *callbacks_count)
374 SilcServerCommandPending *r;
375 SilcServerCommandPendingCallbacks callbacks = NULL;
378 silc_dlist_start(server->pending_commands);
379 while ((r = silc_dlist_get(server->pending_commands)) != SILC_LIST_END) {
380 if ((r->reply_cmd == command || r->reply_cmd == SILC_COMMAND_NONE)
381 && r->ident == ident) {
382 callbacks = silc_realloc(callbacks, sizeof(*callbacks) * (i + 1));
383 callbacks[i].context = r->context;
384 callbacks[i].callback = r->callback;
390 *callbacks_count = i;
394 /* Sends simple status message as command reply packet */
397 silc_server_command_send_status_reply(SilcServerCommandContext cmd,
404 SILC_LOG_DEBUG(("Sending command status %d", status));
407 silc_command_reply_payload_encode_va(command, status, error,
408 silc_command_get_ident(cmd->payload),
410 silc_server_packet_send(cmd->server, cmd->sock,
411 SILC_PACKET_COMMAND_REPLY, 0,
412 buffer->data, buffer->len, FALSE);
413 silc_buffer_free(buffer);
416 /* Sends command status reply with one extra argument. The argument
417 type must be sent as argument. */
420 silc_server_command_send_status_data(SilcServerCommandContext cmd,
425 const unsigned char *arg,
430 SILC_LOG_DEBUG(("Sending command status %d", status));
433 silc_command_reply_payload_encode_va(command, status, 0,
434 silc_command_get_ident(cmd->payload),
435 1, arg_type, arg, arg_len);
436 silc_server_packet_send(cmd->server, cmd->sock,
437 SILC_PACKET_COMMAND_REPLY, 0,
438 buffer->data, buffer->len, FALSE);
439 silc_buffer_free(buffer);
442 /* This function can be called to check whether in the command reply
443 an error occurred. This function has no effect if this is called
444 when the command function was not called as pending command callback.
445 This returns TRUE if error had occurred. */
448 silc_server_command_pending_error_check(SilcServerCommandContext cmd,
449 SilcServerCommandReplyContext cmdr,
452 if (!cmd->pending || !cmdr)
455 if (!silc_command_get_status(cmdr->payload, NULL, NULL)) {
458 /* Send the same command reply payload */
459 silc_command_set_ident(cmdr->payload,
460 silc_command_get_ident(cmd->payload));
461 buffer = silc_command_payload_encode_payload(cmdr->payload);
462 silc_server_packet_send(cmd->server, cmd->sock,
463 SILC_PACKET_COMMAND_REPLY, 0,
464 buffer->data, buffer->len, FALSE);
465 silc_buffer_free(buffer);
472 /******************************************************************************
476 ******************************************************************************/
485 #define ADD_ERROR(errptr, errptr_count, _id, _id_type, _index, _status) \
487 errptr = silc_realloc(errptr, sizeof(*errptr) * (errptr_count + 1)); \
490 errptr[errptr_count].id = _id; \
491 errptr[errptr_count].id_type = _id_type; \
492 errptr[errptr_count].index = _index; \
493 errptr[errptr_count].error = _status; \
498 silc_server_command_whois_parse(SilcServerCommandContext cmd,
499 SilcClientID ***client_id,
500 SilcUInt32 *client_id_count,
504 ResolveError *error_client,
505 SilcUInt32 *error_client_count)
509 SilcUInt32 argc = silc_argument_get_arg_num(cmd->args);
513 /* If client ID is in the command it must be used instead of nickname */
514 tmp = silc_argument_get_arg_type(cmd->args, 4, &len);
516 /* No ID, get the nickname@server string and parse it. */
517 tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
519 silc_parse_userfqdn(tmp, nickname, server_name);
521 silc_server_command_send_status_reply(cmd, SILC_COMMAND_WHOIS,
522 SILC_STATUS_ERR_BAD_NICKNAME, 0);
526 /* Command includes ID, we must use that. Take all ID's from the
528 for (k = 0, i = 0; i < argc; i++) {
529 tmp = silc_argument_get_arg_type(cmd->args, i + 4, &len);
532 id = silc_id_payload_parse_id(tmp, len, NULL);
534 *client_id = silc_realloc(*client_id, sizeof(**client_id) *
535 (*client_id_count + 1));
536 (*client_id)[k] = id;
537 (*client_id_count)++;
540 ADD_ERROR((*error_client), (*error_client_count), NULL, 0, i + 4,
541 SILC_STATUS_ERR_BAD_CLIENT_ID);
546 /* Get the max count of reply messages allowed */
547 tmp = silc_argument_get_arg_type(cmd->args, 2, NULL);
549 SILC_GET32_MSB(*count, tmp);
556 /* Resolve context used by both WHOIS and IDENTIFY commands */
558 SilcServerEntry router;
560 unsigned char **res_argv;
561 SilcUInt32 *res_argv_lens;
562 SilcUInt32 *res_argv_types;
564 } *SilcServerResolveContext;
567 silc_server_command_whois_check(SilcServerCommandContext cmd,
568 SilcClientEntry *clients,
569 SilcUInt32 clients_count)
571 SilcServer server = cmd->server;
572 SilcClientEntry entry;
573 SilcServerResolveContext resolve = NULL, r = NULL;
574 SilcUInt32 resolve_count = 0;
578 SILC_LOG_DEBUG(("Start"));
580 for (i = 0; i < clients_count; i++) {
585 if ((entry->nickname && entry->username && entry->userinfo) ||
586 !(entry->data.status & SILC_IDLIST_STATUS_REGISTERED)) {
590 /* If we are normal server, and we've not resolved this client from
591 router and it is global client, we'll check whether it is on some
592 channel. If not then we cannot be sure about its validity, and
593 we'll resolve it from router. */
594 if (cmd->server->server_type != SILC_SERVER || cmd->pending ||
595 entry->connection || silc_hash_table_count(entry->channels))
599 /* We need to resolve this entry since it is not complete */
601 if (!cmd->pending && entry->data.status & SILC_IDLIST_STATUS_RESOLVING) {
602 /* The entry is being resolved (and we are not the resolver) so attach
603 to the command reply and we're done with this one. */
604 silc_server_command_pending(server, SILC_COMMAND_NONE,
605 entry->resolve_cmd_ident,
606 silc_server_command_whois,
607 silc_server_command_dup(cmd));
610 if (entry->data.status & SILC_IDLIST_STATUS_RESOLVING) {
611 /* We've resolved this and it still is not ready. We'll return
612 and are that this will be handled again after it is resolved. */
613 for (i = 0; i < resolve_count; i++) {
614 for (k = 0; k < r->res_argc; k++)
615 silc_free(r->res_argv[k]);
616 silc_free(r->res_argv);
617 silc_free(r->res_argv_lens);
618 silc_free(r->res_argv_types);
623 /* We'll resolve this client */
627 for (k = 0; k < resolve_count; k++) {
628 if (resolve[k].router == entry->router) {
635 resolve = silc_realloc(resolve, sizeof(*resolve) *
636 (resolve_count + 1));
637 r = &resolve[resolve_count];
638 memset(r, 0, sizeof(*r));
639 r->router = entry->router;
640 r->ident = ++server->cmd_ident;
644 r->res_argv = silc_realloc(r->res_argv, sizeof(*r->res_argv) *
646 r->res_argv_lens = silc_realloc(r->res_argv_lens,
647 sizeof(*r->res_argv_lens) *
649 r->res_argv_types = silc_realloc(r->res_argv_types,
650 sizeof(*r->res_argv_types) *
652 idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
653 r->res_argv[r->res_argc] = silc_calloc(idp->len,
654 sizeof(**r->res_argv));
655 memcpy(r->res_argv[r->res_argc], idp->data, idp->len);
656 r->res_argv_lens[r->res_argc] = idp->len;
657 r->res_argv_types[r->res_argc] = r->res_argc + 4;
659 silc_buffer_free(idp);
661 entry->resolve_cmd_ident = r->ident;
662 entry->data.status |= SILC_IDLIST_STATUS_RESOLVING;
663 entry->data.status &= ~SILC_IDLIST_STATUS_RESOLVED;
668 /* Do the resolving */
669 for (i = 0; i < resolve_count; i++) {
674 /* Send WHOIS request. We send WHOIS since we're doing the requesting
675 now anyway so make it a good one. */
676 res_cmd = silc_command_payload_encode(SILC_COMMAND_WHOIS,
677 r->res_argc, r->res_argv,
681 silc_server_packet_send(server, r->router->connection,
682 SILC_PACKET_COMMAND, cmd->packet->flags,
683 res_cmd->data, res_cmd->len, FALSE);
685 /* Reprocess this packet after received reply */
686 silc_server_command_pending(server, SILC_COMMAND_WHOIS,
688 silc_server_command_whois,
689 silc_server_command_dup(cmd));
692 silc_buffer_free(res_cmd);
693 for (k = 0; k < r->res_argc; k++)
694 silc_free(r->res_argv[k]);
695 silc_free(r->res_argv);
696 silc_free(r->res_argv_lens);
697 silc_free(r->res_argv_types);
706 silc_server_command_whois_send_reply(SilcServerCommandContext cmd,
707 SilcClientEntry *clients,
708 SilcUInt32 clients_count,
710 SilcUInt32 errors_count,
711 int count, const char *nickname,
712 SilcClientID **client_ids)
714 SilcServer server = cmd->server;
716 int i, k, valid_count = clients_count;
718 SilcBuffer packet, idp, channels, umode_list = NULL;
719 SilcClientEntry entry;
721 SilcUInt16 ident = silc_command_get_ident(cmd->payload);
722 char nh[256], uh[256];
723 unsigned char idle[4], mode[4];
724 unsigned char *fingerprint;
725 SilcSocketConnection hsock;
728 /* Process only valid clients and ignore those that are not registered.
729 This is checked with nickname only because when resolved client IDs
730 we check that they are registered earlier. */
732 for (i = 0; i < clients_count; i++)
733 if (clients[i]->data.status & SILC_IDLIST_STATUS_REGISTERED)
739 silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
740 SILC_STATUS_ERR_NO_SUCH_NICK, 0,
741 3, nickname, strlen(nickname));
746 /* Start processing found clients. */
747 status = SILC_STATUS_OK;
749 status = SILC_STATUS_LIST_START;
751 for (i = 0, k = 0; i < clients_count; i++) {
757 status = SILC_STATUS_LIST_ITEM;
758 if (valid_count > 1 && k == valid_count - 1 && !errors_count)
759 status = SILC_STATUS_LIST_END;
760 if (count && k - 1 == count)
761 status = SILC_STATUS_LIST_END;
763 /* Send WHOIS reply */
764 idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
765 tmp = silc_argument_get_first_arg(cmd->args, NULL);
767 memset(uh, 0, sizeof(uh));
768 memset(nh, 0, sizeof(nh));
769 memset(idle, 0, sizeof(idle));
771 strncat(nh, entry->nickname, strlen(entry->nickname));
772 if (!strchr(entry->nickname, '@')) {
774 if (entry->servername) {
775 strncat(nh, entry->servername, strlen(entry->servername));
777 len = entry->router ? strlen(entry->router->server_name) :
778 strlen(server->server_name);
779 strncat(nh, entry->router ? entry->router->server_name :
780 server->server_name, len);
784 strncat(uh, entry->username, strlen(entry->username));
785 if (!strchr(entry->username, '@') && entry->connection) {
787 hsock = (SilcSocketConnection)entry->connection;
788 len = strlen(hsock->hostname);
789 strncat(uh, hsock->hostname, len);
792 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT)
793 channels = silc_server_get_client_channel_list(server, entry, FALSE,
796 channels = silc_server_get_client_channel_list(server, entry, TRUE,
799 if (entry->data.fingerprint[0] != 0 && entry->data.fingerprint[1] != 0)
800 fingerprint = entry->data.fingerprint;
804 SILC_PUT32_MSB(entry->mode, mode);
805 if (entry->connection)
806 SILC_PUT32_MSB((time(NULL) - entry->data.last_receive), idle);
809 silc_command_reply_payload_encode_va(SILC_COMMAND_WHOIS,
811 2, idp->data, idp->len,
815 strlen(entry->userinfo),
816 6, channels ? channels->data : NULL,
817 channels ? channels->len : 0,
821 fingerprint ? 20 : 0,
822 10, umode_list ? umode_list->data :
823 NULL, umode_list ? umode_list->len :
826 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
827 0, packet->data, packet->len, FALSE);
829 silc_buffer_free(packet);
830 silc_buffer_free(idp);
832 silc_buffer_free(channels);
834 silc_buffer_free(umode_list);
838 if (status == SILC_STATUS_LIST_END)
843 /* Send error replies */
844 if (status == SILC_STATUS_OK && errors_count > 1)
845 status = SILC_STATUS_LIST_START;
848 for (i = 0, k = 0; i < errors_count; i++) {
850 idp = silc_id_payload_encode(errors[i].id, SILC_ID_CLIENT);
854 tmp = silc_argument_get_arg_type(cmd->args, errors[i].index, &len);
858 status = SILC_STATUS_LIST_ITEM;
859 if (errors_count > 1 && k == errors_count - 1)
860 status = SILC_STATUS_LIST_END;
861 if (count && k - 1 == count)
862 status = SILC_STATUS_LIST_END;
865 silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
866 (status == SILC_STATUS_OK ?
867 errors[i].error : status),
868 (status == SILC_STATUS_OK ?
869 0 : errors[i].error),
871 silc_buffer_free(idp);
874 if (status == SILC_STATUS_LIST_END)
881 silc_server_command_whois_send_router(SilcServerCommandContext cmd)
883 SilcServer server = cmd->server;
885 SilcUInt16 old_ident;
887 old_ident = silc_command_get_ident(cmd->payload);
888 silc_command_set_ident(cmd->payload, ++server->cmd_ident);
889 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
891 /* Send WHOIS command to our router */
892 silc_server_packet_send(server, (SilcSocketConnection)
893 server->router->connection,
894 SILC_PACKET_COMMAND, cmd->packet->flags,
895 tmpbuf->data, tmpbuf->len, TRUE);
897 /* Reprocess this packet after received reply from router */
898 silc_server_command_pending(server, SILC_COMMAND_WHOIS,
899 silc_command_get_ident(cmd->payload),
900 silc_server_command_whois,
901 silc_server_command_dup(cmd));
903 silc_command_set_ident(cmd->payload, old_ident);
904 silc_buffer_free(tmpbuf);
908 silc_server_command_whois_process(SilcServerCommandContext cmd)
910 SilcServer server = cmd->server;
911 char *nick = NULL, *server_name = NULL;
913 SilcClientEntry *clients = NULL, entry;
914 SilcClientID **client_id = NULL;
915 SilcUInt32 client_id_count = 0, clients_count = 0, error_client_count = 0;
916 ResolveError error_client = NULL;
918 bool check_global = FALSE;
920 /* Parse the whois request */
921 if (!silc_server_command_whois_parse(cmd, &client_id, &client_id_count,
922 &nick, &server_name, &count,
923 &error_client, &error_client_count))
926 /* Send the WHOIS request to the router only if it included nickname.
927 Since nicknames can be expanded into many clients we need to send it
928 to router. If the WHOIS included only client ID's we will check them
929 first locally since we just might have them. */
930 if (nick && !client_id_count && cmd->sock->type == SILC_SOCKET_TYPE_CLIENT &&
931 server->server_type == SILC_SERVER && !cmd->pending &&
932 !server->standalone) {
933 silc_server_command_whois_send_router(cmd);
938 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT)
940 else if (server->server_type != SILC_SERVER)
943 /* Get all clients matching that ID or nickname from local list */
944 if (client_id_count) {
945 /* Check all Client ID's received in the command packet */
946 for (i = 0; i < client_id_count; i++) {
947 entry = silc_idlist_find_client_by_id(server->local_list,
948 client_id[i], TRUE, NULL);
949 if (!entry && check_global)
950 entry = silc_idlist_find_client_by_id(server->global_list,
951 client_id[i], TRUE, NULL);
953 clients = silc_realloc(clients, sizeof(*clients) *
954 (clients_count + 1));
955 clients[clients_count++] = entry;
957 /* If we are normal server and did not send the request first to router
958 do it now, since we do not have the Client ID information. */
959 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT &&
960 server->server_type == SILC_SERVER && !cmd->pending &&
961 !server->standalone) {
962 silc_server_command_whois_send_router(cmd);
967 ADD_ERROR(error_client, error_client_count, client_id[i],
968 SILC_ID_CLIENT, 0, SILC_STATUS_ERR_NO_SUCH_CLIENT_ID);
972 /* Find by nickname */
973 if (!silc_idlist_get_clients_by_hash(server->local_list,
974 nick, server->md5hash,
975 &clients, &clients_count))
976 silc_idlist_get_clients_by_nickname(server->local_list,
978 &clients, &clients_count);
980 if (!silc_idlist_get_clients_by_hash(server->global_list,
981 nick, server->md5hash,
982 &clients, &clients_count))
983 silc_idlist_get_clients_by_nickname(server->global_list,
985 &clients, &clients_count);
989 if (!clients && (client_id_count || nick)) {
990 /* If we are normal server and did not send the request first to router
991 do it now, since we do not have the information. */
992 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT &&
993 server->server_type == SILC_SERVER && !cmd->pending &&
994 !server->standalone) {
995 silc_server_command_whois_send_router(cmd);
1000 /* Such client(s) really does not exist in the SILC network. */
1001 if (!client_id_count)
1002 silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
1003 SILC_STATUS_ERR_NO_SUCH_NICK, 0,
1004 3, nick, strlen(nick));
1006 silc_server_command_whois_send_reply(cmd, NULL, 0,
1007 error_client, error_client_count,
1012 /* Router always finds the client entry if it exists in the SILC network.
1013 However, it might be incomplete entry and does not include all the
1014 mandatory fields that WHOIS command reply requires. Check for these and
1015 make query from the server who owns the client if some fields are
1017 if (!silc_server_command_whois_check(cmd, clients, clients_count)) {
1022 /* Send the command reply */
1023 silc_server_command_whois_send_reply(cmd, clients, clients_count,
1024 error_client, error_client_count,
1025 count, nick, client_id);
1028 if (client_id_count) {
1029 for (i = 0; i < client_id_count; i++)
1030 silc_free(client_id[i]);
1031 silc_free(client_id);
1034 silc_free(error_client);
1036 silc_free(server_name);
1041 /* Server side of command WHOIS. Processes user's query and sends found
1042 results as command replies back to the client. */
1044 SILC_SERVER_CMD_FUNC(whois)
1046 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
1049 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_WHOIS, cmd, 1, 3328);
1051 ret = silc_server_command_whois_process(cmd);
1052 silc_server_command_free(cmd);
1055 /******************************************************************************
1059 ******************************************************************************/
1062 silc_server_command_whowas_parse(SilcServerCommandContext cmd,
1070 tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
1072 silc_server_command_send_status_reply(cmd, SILC_COMMAND_WHOWAS,
1073 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
1078 /* Get the nickname@server string and parse it. */
1079 silc_parse_userfqdn(tmp, nickname, server_name);
1081 /* Get the max count of reply messages allowed */
1082 tmp = silc_argument_get_arg_type(cmd->args, 2, NULL);
1084 SILC_GET32_MSB(*count, tmp);
1092 silc_server_command_whowas_check(SilcServerCommandContext cmd,
1093 SilcClientEntry *clients,
1094 SilcUInt32 clients_count)
1096 SilcServer server = cmd->server;
1098 SilcClientEntry entry;
1100 for (i = 0; i < clients_count; i++) {
1103 if (!entry->nickname || !entry->username) {
1105 SilcUInt16 old_ident;
1110 old_ident = silc_command_get_ident(cmd->payload);
1111 silc_command_set_ident(cmd->payload, ++server->cmd_ident);
1112 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
1114 /* Send WHOWAS command */
1115 silc_server_packet_send(server, entry->router->connection,
1116 SILC_PACKET_COMMAND, cmd->packet->flags,
1117 tmpbuf->data, tmpbuf->len, TRUE);
1119 /* Reprocess this packet after received reply */
1120 silc_server_command_pending(server, SILC_COMMAND_WHOWAS,
1121 silc_command_get_ident(cmd->payload),
1122 silc_server_command_whowas,
1123 silc_server_command_dup(cmd));
1124 cmd->pending = TRUE;
1125 silc_command_set_ident(cmd->payload, old_ident);
1127 silc_buffer_free(tmpbuf);
1136 silc_server_command_whowas_send_reply(SilcServerCommandContext cmd,
1137 SilcClientEntry *clients,
1138 SilcUInt32 clients_count)
1140 SilcServer server = cmd->server;
1142 int i, k, count = 0, len;
1143 SilcBuffer packet, idp;
1144 SilcClientEntry entry = NULL;
1146 SilcUInt16 ident = silc_command_get_ident(cmd->payload);
1147 char nh[256], uh[256];
1150 status = SILC_STATUS_OK;
1152 /* Process only entries that are not registered anymore. */
1154 for (i = 0; i < clients_count; i++) {
1155 if (clients[i]->data.status & SILC_IDLIST_STATUS_REGISTERED)
1162 /* No valid entries found at all, just send error */
1163 tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
1164 silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOWAS,
1165 SILC_STATUS_ERR_NO_SUCH_NICK, 0,
1166 3, tmp, tmp ? strlen(tmp) : 0);
1170 if (valid_count > 1)
1171 status = SILC_STATUS_LIST_START;
1173 for (i = 0, k = 0; i < clients_count; i++) {
1179 status = SILC_STATUS_LIST_ITEM;
1180 if (valid_count > 1 && k == valid_count - 1)
1181 status = SILC_STATUS_LIST_END;
1182 if (count && k - 1 == count)
1183 status = SILC_STATUS_LIST_END;
1185 /* Send WHOWAS reply */
1186 idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
1187 tmp = silc_argument_get_first_arg(cmd->args, NULL);
1188 memset(uh, 0, sizeof(uh));
1189 memset(nh, 0, sizeof(nh));
1191 strncat(nh, entry->nickname, strlen(entry->nickname));
1192 if (!strchr(entry->nickname, '@')) {
1193 strncat(nh, "@", 1);
1194 if (entry->servername) {
1195 strncat(nh, entry->servername, strlen(entry->servername));
1197 len = entry->router ? strlen(entry->router->server_name) :
1198 strlen(server->server_name);
1199 strncat(nh, entry->router ? entry->router->server_name :
1200 server->server_name, len);
1204 strncat(uh, entry->username, strlen(entry->username));
1205 if (!strchr(entry->username, '@')) {
1206 strncat(uh, "@", 1);
1207 strcat(uh, "*private*");
1211 silc_command_reply_payload_encode_va(SILC_COMMAND_WHOWAS,
1212 status, 0, ident, 4,
1213 2, idp->data, idp->len,
1218 strlen(entry->userinfo) : 0);
1219 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
1220 0, packet->data, packet->len, FALSE);
1222 silc_buffer_free(packet);
1223 silc_buffer_free(idp);
1225 if (status == SILC_STATUS_LIST_END)
1232 silc_server_command_whowas_process(SilcServerCommandContext cmd)
1234 SilcServer server = cmd->server;
1235 char *nick = NULL, *server_name = NULL;
1237 SilcClientEntry *clients = NULL;
1238 SilcUInt32 clients_count = 0;
1240 bool check_global = FALSE;
1242 /* Protocol dictates that we must always send the received WHOWAS request
1243 to our router if we are normal server, so let's do it now unless we
1244 are standalone. We will not send any replies to the client until we
1245 have received reply from the router. */
1246 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT &&
1247 server->server_type == SILC_SERVER && !cmd->pending &&
1248 !server->standalone) {
1250 SilcUInt16 old_ident;
1252 old_ident = silc_command_get_ident(cmd->payload);
1253 silc_command_set_ident(cmd->payload, ++server->cmd_ident);
1254 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
1256 /* Send WHOWAS command to our router */
1257 silc_server_packet_send(server, (SilcSocketConnection)
1258 server->router->connection,
1259 SILC_PACKET_COMMAND, cmd->packet->flags,
1260 tmpbuf->data, tmpbuf->len, TRUE);
1262 /* Reprocess this packet after received reply from router */
1263 silc_server_command_pending(server, SILC_COMMAND_WHOWAS,
1264 silc_command_get_ident(cmd->payload),
1265 silc_server_command_whowas,
1266 silc_server_command_dup(cmd));
1267 cmd->pending = TRUE;
1268 silc_command_set_ident(cmd->payload, old_ident);
1270 silc_buffer_free(tmpbuf);
1275 /* We are ready to process the command request. Let's search for the
1276 requested client and send reply to the requesting client. */
1278 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT)
1279 check_global = TRUE;
1280 else if (server->server_type != SILC_SERVER)
1281 check_global = TRUE;
1283 /* Parse the whowas request */
1284 if (!silc_server_command_whowas_parse(cmd, &nick, &server_name, &count))
1287 /* Get all clients matching that nickname from local list */
1288 if (!silc_idlist_get_clients_by_nickname(server->local_list,
1290 &clients, &clients_count))
1291 silc_idlist_get_clients_by_hash(server->local_list,
1292 nick, server->md5hash,
1293 &clients, &clients_count);
1295 /* Check global list as well */
1297 if (!silc_idlist_get_clients_by_nickname(server->global_list,
1299 &clients, &clients_count))
1300 silc_idlist_get_clients_by_hash(server->global_list,
1301 nick, server->md5hash,
1302 &clients, &clients_count);
1306 /* Such a client really does not exist in the SILC network. */
1307 silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOWAS,
1308 SILC_STATUS_ERR_NO_SUCH_NICK, 0,
1309 3, nick, strlen(nick));
1313 if (!silc_server_command_whowas_check(cmd, clients, clients_count)) {
1318 /* Send the command reply to the client */
1319 silc_server_command_whowas_send_reply(cmd, clients, clients_count);
1324 silc_free(server_name);
1328 /* Server side of command WHOWAS. */
1330 SILC_SERVER_CMD_FUNC(whowas)
1332 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
1335 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_WHOWAS, cmd, 1, 2);
1337 ret = silc_server_command_whowas_process(cmd);
1338 silc_server_command_free(cmd);
1341 /******************************************************************************
1345 ******************************************************************************/
1348 silc_server_command_identify_send_router(SilcServerCommandContext cmd)
1350 SilcServer server = cmd->server;
1352 SilcUInt16 old_ident;
1354 old_ident = silc_command_get_ident(cmd->payload);
1355 silc_command_set_ident(cmd->payload, ++server->cmd_ident);
1356 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
1358 /* Send IDENTIFY command to our router */
1359 silc_server_packet_send(server, (SilcSocketConnection)
1360 server->router->connection,
1361 SILC_PACKET_COMMAND, cmd->packet->flags,
1362 tmpbuf->data, tmpbuf->len, TRUE);
1364 /* Reprocess this packet after received reply from router */
1365 silc_server_command_pending(server, SILC_COMMAND_IDENTIFY,
1366 silc_command_get_ident(cmd->payload),
1367 silc_server_command_identify,
1368 silc_server_command_dup(cmd));
1369 cmd->pending = TRUE;
1370 silc_command_set_ident(cmd->payload, old_ident);
1371 silc_buffer_free(tmpbuf);
1375 silc_server_command_identify_parse(SilcServerCommandContext cmd,
1376 SilcClientEntry **clients,
1377 SilcUInt32 *clients_count,
1378 SilcServerEntry **servers,
1379 SilcUInt32 *servers_count,
1380 SilcChannelEntry **channels,
1381 SilcUInt32 *channels_count,
1383 ResolveError *error_id,
1384 SilcUInt32 *error_id_count)
1386 SilcServer server = cmd->server;
1389 SilcUInt32 argc = silc_argument_get_arg_num(cmd->args);
1391 bool check_global = FALSE;
1395 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT)
1396 check_global = TRUE;
1397 else if (server->server_type != SILC_SERVER)
1398 check_global = TRUE;
1400 /* If ID Payload is in the command it must be used instead of names */
1401 tmp = silc_argument_get_arg_type(cmd->args, 5, &len);
1403 /* No ID, get the names. */
1405 /* If we are normal server and have not resolved information from
1406 router yet, do so now. */
1407 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT &&
1408 server->server_type == SILC_SERVER && !cmd->pending &&
1409 !server->standalone) {
1410 silc_server_command_identify_send_router(cmd);
1414 /* Try to get nickname@server. */
1415 tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
1418 char *nick_server = NULL;
1420 silc_parse_userfqdn(tmp, &nick, &nick_server);
1422 if (!silc_idlist_get_clients_by_hash(server->local_list,
1423 nick, server->md5hash,
1424 clients, clients_count))
1425 silc_idlist_get_clients_by_nickname(server->local_list,
1427 clients, clients_count);
1429 if (!silc_idlist_get_clients_by_hash(server->global_list,
1430 nick, server->md5hash,
1431 clients, clients_count))
1432 silc_idlist_get_clients_by_nickname(server->global_list,
1434 clients, clients_count);
1438 silc_free(nick_server);
1441 /* the nickname does not exist, send error reply */
1442 silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
1443 SILC_STATUS_ERR_NO_SUCH_NICK, 0,
1444 3, tmp, strlen(tmp));
1449 /* Try to get server name */
1450 tmp = silc_argument_get_arg_type(cmd->args, 2, NULL);
1452 entry = silc_idlist_find_server_by_name(server->local_list,
1454 if (!entry && check_global)
1455 entry = silc_idlist_find_server_by_name(server->global_list,
1458 *servers = silc_realloc(*servers, sizeof(**servers) *
1459 (*servers_count + 1));
1460 (*servers)[(*servers_count)++] = entry;
1464 /* the server does not exist, send error reply */
1465 silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
1466 SILC_STATUS_ERR_NO_SUCH_SERVER,
1467 0, 3, tmp, strlen(tmp));
1472 /* Try to get channel name */
1473 tmp = silc_argument_get_arg_type(cmd->args, 3, NULL);
1475 entry = silc_idlist_find_channel_by_name(server->local_list,
1477 if (!entry && check_global)
1478 entry = silc_idlist_find_channel_by_name(server->global_list,
1481 *channels = silc_realloc(*channels, sizeof(**channels) *
1482 (*channels_count + 1));
1483 (*channels)[(*channels_count)++] = entry;
1487 /* The channel does not exist, send error reply */
1488 silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
1489 SILC_STATUS_ERR_NO_SUCH_CHANNEL,
1490 0, 3, tmp, strlen(tmp));
1495 if (!(*clients) && !(*servers) && !(*channels)) {
1496 silc_server_command_send_status_reply(cmd, SILC_COMMAND_IDENTIFY,
1497 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
1502 /* Command includes ID, we must use that. Also check whether the command
1503 has more than one ID set - take them all. */
1505 /* Take all ID's from the command packet */
1506 for (i = 0; i < argc; i++) {
1509 tmp = silc_argument_get_arg_type(cmd->args, i + 5, &len);
1513 idp = silc_id_payload_parse(tmp, len);
1515 ADD_ERROR((*error_id), (*error_id_count), NULL, 0, i + 5,
1516 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
1518 id = silc_id_payload_get_id(idp);
1519 switch (silc_id_payload_get_type(idp)) {
1521 case SILC_ID_CLIENT:
1522 entry = silc_idlist_find_client_by_id(server->local_list,
1524 if (!entry && check_global)
1525 entry = silc_idlist_find_client_by_id(server->global_list,
1528 *clients = silc_realloc(*clients, sizeof(**clients) *
1529 (*clients_count + 1));
1530 (*clients)[(*clients_count)++] = (SilcClientEntry)entry;
1532 /* If we are normal server and have not resolved information from
1533 router yet, do so now. */
1534 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT &&
1535 server->server_type == SILC_SERVER && !cmd->pending &&
1536 !server->standalone) {
1537 silc_server_command_identify_send_router(cmd);
1538 silc_free(*clients);
1539 silc_free(*servers);
1540 silc_free(*channels);
1541 silc_free(*error_id);
1545 ADD_ERROR((*error_id), (*error_id_count), NULL, 0, i + 5,
1546 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID);
1551 case SILC_ID_SERVER:
1552 entry = silc_idlist_find_server_by_id(server->local_list,
1554 if (!entry && check_global)
1555 entry = silc_idlist_find_server_by_id(server->global_list,
1558 *servers = silc_realloc(*servers, sizeof(**servers) *
1559 (*servers_count + 1));
1560 (*servers)[(*servers_count)++] = (SilcServerEntry)entry;
1562 /* If we are normal server and have not resolved information from
1563 router yet, do so now. */
1564 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT &&
1565 server->server_type == SILC_SERVER && !cmd->pending &&
1566 !server->standalone) {
1567 silc_server_command_identify_send_router(cmd);
1568 silc_free(*clients);
1569 silc_free(*servers);
1570 silc_free(*channels);
1571 silc_free(*error_id);
1575 ADD_ERROR((*error_id), (*error_id_count), NULL, 0, i + 5,
1576 SILC_STATUS_ERR_NO_SUCH_SERVER_ID);
1580 case SILC_ID_CHANNEL:
1581 entry = silc_idlist_find_channel_by_id(server->local_list, id, NULL);
1582 if (!entry && check_global)
1583 entry = silc_idlist_find_channel_by_id(server->global_list, id,
1586 *channels = silc_realloc(*channels, sizeof(**channels) *
1587 (*channels_count + 1));
1588 (*channels)[(*channels_count)++] = (SilcChannelEntry)entry;
1590 /* If we are normal server and have not resolved information from
1591 router yet, do so now. */
1592 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT &&
1593 server->server_type == SILC_SERVER && !cmd->pending &&
1594 !server->standalone) {
1595 silc_server_command_identify_send_router(cmd);
1596 silc_free(*clients);
1597 silc_free(*servers);
1598 silc_free(*channels);
1599 silc_free(*error_id);
1603 ADD_ERROR((*error_id), (*error_id_count), NULL, 0, i + 5,
1604 SILC_STATUS_ERR_NO_SUCH_CHANNEL_ID);
1613 /* Get the max count of reply messages allowed */
1614 tmp = silc_argument_get_arg_type(cmd->args, 4, NULL);
1616 SILC_GET32_MSB(*count, tmp);
1623 /* Checks that all mandatory fields in client entry are present. If not
1624 then send WHOIS request to the server who owns the client. We use
1625 WHOIS because we want to get as much information as possible at once. */
1628 silc_server_command_identify_check_client(SilcServerCommandContext cmd,
1629 SilcClientEntry *clients,
1630 SilcUInt32 clients_count)
1632 SilcServer server = cmd->server;
1633 SilcClientEntry entry;
1634 SilcServerResolveContext resolve = NULL, r = NULL;
1635 SilcUInt32 resolve_count = 0;
1639 for (i = 0; i < clients_count; i++) {
1644 if (entry->nickname ||
1645 !(entry->data.status & SILC_IDLIST_STATUS_REGISTERED)) {
1649 /* If we are normal server, and we've not resolved this client from
1650 router and it is global client, we'll check whether it is on some
1651 channel. If not then we cannot be sure about its validity, and
1652 we'll resolve it from router. */
1653 if (cmd->server->server_type != SILC_SERVER || cmd->pending ||
1654 entry->connection || silc_hash_table_count(entry->channels))
1658 /* We need to resolve this entry since it is not complete */
1660 if (!cmd->pending && entry->data.status & SILC_IDLIST_STATUS_RESOLVING) {
1661 /* The entry is being resolved (and we are not the resolver) so attach
1662 to the command reply and we're done with this one. */
1663 silc_server_command_pending(server, SILC_COMMAND_NONE,
1664 entry->resolve_cmd_ident,
1665 silc_server_command_identify,
1666 silc_server_command_dup(cmd));
1669 if (entry->data.status & SILC_IDLIST_STATUS_RESOLVING) {
1670 /* We've resolved this and it still is not ready. We'll return
1671 and are that this will be handled again after it is resolved. */
1672 for (i = 0; i < resolve_count; i++) {
1673 for (k = 0; k < r->res_argc; k++)
1674 silc_free(r->res_argv[k]);
1675 silc_free(r->res_argv);
1676 silc_free(r->res_argv_lens);
1677 silc_free(r->res_argv_types);
1682 /* We'll resolve this client */
1686 for (k = 0; k < resolve_count; k++) {
1687 if (resolve[k].router == entry->router) {
1694 resolve = silc_realloc(resolve, sizeof(*resolve) *
1695 (resolve_count + 1));
1696 r = &resolve[resolve_count];
1697 memset(r, 0, sizeof(*r));
1698 r->router = entry->router;
1699 r->ident = ++server->cmd_ident;
1703 r->res_argv = silc_realloc(r->res_argv, sizeof(*r->res_argv) *
1705 r->res_argv_lens = silc_realloc(r->res_argv_lens,
1706 sizeof(*r->res_argv_lens) *
1708 r->res_argv_types = silc_realloc(r->res_argv_types,
1709 sizeof(*r->res_argv_types) *
1711 idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
1712 r->res_argv[r->res_argc] = silc_calloc(idp->len,
1713 sizeof(**r->res_argv));
1714 memcpy(r->res_argv[r->res_argc], idp->data, idp->len);
1715 r->res_argv_lens[r->res_argc] = idp->len;
1716 r->res_argv_types[r->res_argc] = r->res_argc + 4;
1718 silc_buffer_free(idp);
1720 entry->resolve_cmd_ident = r->ident;
1721 entry->data.status |= SILC_IDLIST_STATUS_RESOLVING;
1722 entry->data.status &= ~SILC_IDLIST_STATUS_RESOLVED;
1727 /* Do the resolving */
1728 for (i = 0; i < resolve_count; i++) {
1733 /* Send WHOIS request. We send WHOIS since we're doing the requesting
1734 now anyway so make it a good one. */
1735 res_cmd = silc_command_payload_encode(SILC_COMMAND_WHOIS,
1736 r->res_argc, r->res_argv,
1740 silc_server_packet_send(server, r->router->connection,
1741 SILC_PACKET_COMMAND, cmd->packet->flags,
1742 res_cmd->data, res_cmd->len, FALSE);
1744 /* Reprocess this packet after received reply */
1745 silc_server_command_pending(server, SILC_COMMAND_WHOIS,
1747 silc_server_command_identify,
1748 silc_server_command_dup(cmd));
1749 cmd->pending = TRUE;
1751 silc_buffer_free(res_cmd);
1752 for (k = 0; k < r->res_argc; k++)
1753 silc_free(r->res_argv[k]);
1754 silc_free(r->res_argv);
1755 silc_free(r->res_argv_lens);
1756 silc_free(r->res_argv_types);
1765 silc_server_command_identify_send_reply(SilcServerCommandContext cmd,
1766 SilcClientEntry *clients,
1767 SilcUInt32 clients_count,
1768 SilcServerEntry *servers,
1769 SilcUInt32 servers_count,
1770 SilcChannelEntry *channels,
1771 SilcUInt32 channels_count,
1772 ResolveError errors,
1773 SilcUInt32 errors_count,
1776 SilcServer server = cmd->server;
1777 int i, k, valid_count;
1779 SilcBuffer packet, idp;
1781 SilcUInt16 ident = silc_command_get_ident(cmd->payload);
1782 char nh[256], uh[256];
1783 SilcSocketConnection hsock;
1786 status = SILC_STATUS_OK;
1789 SilcClientEntry entry;
1790 valid_count = clients_count;
1792 if (silc_argument_get_arg_type(cmd->args, 1, NULL)) {
1793 /* Process only valid clients and ignore those that are not registered.
1794 This is checked with nickname only because when resolved client IDs
1795 we check that they are registered earlier. */
1797 for (i = 0; i < clients_count; i++) {
1798 if (clients[i]->data.status & SILC_IDLIST_STATUS_REGISTERED)
1805 /* No valid entries found at all, just send error */
1806 tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
1807 silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
1808 SILC_STATUS_ERR_NO_SUCH_NICK, 0,
1809 3, tmp, tmp ? strlen(tmp) : 0);
1814 /* Process all valid client entries and send command replies */
1816 if (valid_count > 1)
1817 status = SILC_STATUS_LIST_START;
1819 for (i = 0, k = 0; i < clients_count; i++) {
1825 status = SILC_STATUS_LIST_ITEM;
1826 if (valid_count > 1 && k == valid_count - 1
1827 && !servers_count && !channels_count && !errors_count)
1828 status = SILC_STATUS_LIST_END;
1829 if (count && k - 1 == count)
1830 status = SILC_STATUS_LIST_END;
1832 /* Send IDENTIFY reply */
1834 idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
1835 memset(uh, 0, sizeof(uh));
1836 memset(nh, 0, sizeof(nh));
1837 strncat(nh, entry->nickname, strlen(entry->nickname));
1838 if (!strchr(entry->nickname, '@')) {
1839 strncat(nh, "@", 1);
1840 if (entry->servername) {
1841 strncat(nh, entry->servername, strlen(entry->servername));
1843 len = entry->router ? strlen(entry->router->server_name) :
1844 strlen(server->server_name);
1845 strncat(nh, entry->router ? entry->router->server_name :
1846 server->server_name, len);
1850 if (!entry->username) {
1851 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
1852 status, 0, ident, 2,
1853 2, idp->data, idp->len,
1856 strncat(uh, entry->username, strlen(entry->username));
1857 if (!strchr(entry->username, '@') && entry->connection) {
1858 strncat(uh, "@", 1);
1859 hsock = (SilcSocketConnection)entry->connection;
1860 len = strlen(hsock->hostname);
1861 strncat(uh, hsock->hostname, len);
1864 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
1865 status, 0, ident, 3,
1866 2, idp->data, idp->len,
1871 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
1872 0, packet->data, packet->len, FALSE);
1874 silc_buffer_free(packet);
1875 silc_buffer_free(idp);
1877 if (status == SILC_STATUS_LIST_END)
1884 SilcServerEntry entry;
1886 if (status == SILC_STATUS_OK && servers_count > 1)
1887 status = SILC_STATUS_LIST_START;
1889 for (i = 0, k = 0; i < servers_count; i++) {
1893 status = SILC_STATUS_LIST_ITEM;
1894 if (servers_count > 1 && k == servers_count - 1 && !channels_count &&
1896 status = SILC_STATUS_LIST_END;
1897 if (count && k - 1 == count)
1898 status = SILC_STATUS_LIST_END;
1900 /* Send IDENTIFY reply */
1901 idp = silc_id_payload_encode(entry->id, SILC_ID_SERVER);
1903 silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
1904 status, 0, ident, 2,
1905 2, idp->data, idp->len,
1906 3, entry->server_name,
1907 entry->server_name ?
1908 strlen(entry->server_name) : 0);
1909 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
1910 0, packet->data, packet->len, FALSE);
1912 silc_buffer_free(packet);
1913 silc_buffer_free(idp);
1915 if (status == SILC_STATUS_LIST_END)
1922 SilcChannelEntry entry;
1924 if (status == SILC_STATUS_OK && channels_count > 1)
1925 status = SILC_STATUS_LIST_START;
1927 for (i = 0, k = 0; i < channels_count; i++) {
1928 entry = channels[i];
1931 status = SILC_STATUS_LIST_ITEM;
1932 if (channels_count > 1 && k == channels_count - 1 && !errors_count)
1933 status = SILC_STATUS_LIST_END;
1934 if (count && k - 1 == count)
1935 status = SILC_STATUS_LIST_END;
1937 /* Send IDENTIFY reply */
1938 idp = silc_id_payload_encode(entry->id, SILC_ID_CHANNEL);
1940 silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
1941 status, 0, ident, 2,
1942 2, idp->data, idp->len,
1943 3, entry->channel_name,
1944 entry->channel_name ?
1945 strlen(entry->channel_name): 0);
1946 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
1947 0, packet->data, packet->len, FALSE);
1949 silc_buffer_free(packet);
1950 silc_buffer_free(idp);
1952 if (status == SILC_STATUS_LIST_END)
1958 /* Send error replies */
1960 if (status == SILC_STATUS_OK && errors_count > 1)
1961 status = SILC_STATUS_LIST_START;
1964 for (i = 0, k = 0; i < errors_count; i++) {
1966 idp = silc_id_payload_encode(errors[i].id, SILC_ID_CLIENT);
1970 tmp = silc_argument_get_arg_type(cmd->args, errors[i].index, &len);
1974 status = SILC_STATUS_LIST_ITEM;
1975 if (errors_count > 1 && k == errors_count - 1)
1976 status = SILC_STATUS_LIST_END;
1977 if (count && k - 1 == count)
1978 status = SILC_STATUS_LIST_END;
1981 silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
1982 (status == SILC_STATUS_OK ?
1983 errors[i].error : status),
1984 (status == SILC_STATUS_OK ?
1985 0 : errors[i].error),
1987 silc_buffer_free(idp);
1990 if (status == SILC_STATUS_LIST_END)
1998 silc_server_command_identify_process(SilcServerCommandContext cmd)
2000 SilcUInt32 count = 0;
2002 SilcClientEntry *clients = NULL;
2003 SilcServerEntry *servers = NULL;
2004 SilcChannelEntry *channels = NULL;
2005 SilcUInt32 clients_count = 0, servers_count = 0, channels_count = 0;
2006 SilcUInt32 errors_count = 0;
2007 ResolveError errors = NULL;
2009 /* Parse the IDENTIFY request */
2010 ret = silc_server_command_identify_parse(cmd,
2011 &clients, &clients_count,
2012 &servers, &servers_count,
2013 &channels, &channels_count,
2014 &count, &errors, &errors_count);
2019 /* Check that all mandatory fields are present and request those data
2020 from the server who owns the client if necessary. */
2021 if (!silc_server_command_identify_check_client(cmd, clients,
2027 /* Send the command reply to the client */
2028 silc_server_command_identify_send_reply(cmd,
2029 clients, clients_count,
2030 servers, servers_count,
2031 channels, channels_count,
2032 errors, errors_count,
2038 silc_free(channels);
2043 SILC_SERVER_CMD_FUNC(identify)
2045 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
2048 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_IDENTIFY, cmd, 1, 3328);
2050 ret = silc_server_command_identify_process(cmd);
2051 silc_server_command_free(cmd);
2054 /* Server side of command NICK. Sets nickname for user. Setting
2055 nickname causes generation of a new client ID for the client. The
2056 new client ID is sent to the client after changing the nickname. */
2058 SILC_SERVER_CMD_FUNC(nick)
2060 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
2061 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
2062 SilcServer server = cmd->server;
2063 SilcBuffer packet, nidp, oidp = NULL;
2064 SilcClientID *new_id;
2065 SilcUInt32 nick_len;
2067 SilcUInt16 ident = silc_command_get_ident(cmd->payload);
2070 if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
2073 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_NICK, cmd, 1, 1);
2075 /* Check nickname */
2076 nick = silc_argument_get_arg_type(cmd->args, 1, &nick_len);
2079 if (silc_server_name_bad_chars(nick, nick_len) == TRUE) {
2080 silc_server_command_send_status_reply(cmd, SILC_COMMAND_NICK,
2081 SILC_STATUS_ERR_BAD_NICKNAME, 0);
2085 /* Check for same nickname */
2086 if (!strcmp(client->nickname, nick)) {
2087 nidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
2091 /* Create new Client ID */
2092 while (!silc_id_create_client_id(cmd->server, cmd->server->id,
2094 cmd->server->md5hash, nick,
2098 silc_server_command_send_status_reply(cmd, SILC_COMMAND_NICK,
2099 SILC_STATUS_ERR_BAD_NICKNAME, 0);
2102 snprintf(&nick[strlen(nick) - 1], 1, "%d", nickfail);
2105 /* Send notify about nickname change to our router. We send the new
2106 ID and ask to replace it with the old one. If we are router the
2107 packet is broadcasted. Send NICK_CHANGE notify. */
2108 if (!server->standalone)
2109 silc_server_send_notify_nick_change(server, server->router->connection,
2110 server->server_type == SILC_SERVER ?
2111 FALSE : TRUE, client->id,
2114 /* Check if anyone is watching the old nickname */
2115 if (server->server_type == SILC_ROUTER)
2116 silc_server_check_watcher_list(server, client, nick,
2117 SILC_NOTIFY_TYPE_NICK_CHANGE);
2119 oidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
2121 /* Remove old cache entry */
2122 silc_idcache_del_by_context(server->local_list->clients, client);
2124 silc_free(client->id);
2125 client->id = new_id;
2127 silc_free(client->nickname);
2128 client->nickname = strdup(nick);
2130 /* Update client cache */
2131 silc_idcache_add(server->local_list->clients, client->nickname,
2132 client->id, (void *)client, 0, NULL);
2134 nidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
2136 /* Send NICK_CHANGE notify to the client's channels */
2137 silc_server_send_notify_on_channels(server, NULL, client,
2138 SILC_NOTIFY_TYPE_NICK_CHANGE, 3,
2139 oidp->data, oidp->len,
2140 nidp->data, nidp->len,
2142 strlen(client->nickname));
2144 /* Check if anyone is watching the new nickname */
2145 if (server->server_type == SILC_ROUTER)
2146 silc_server_check_watcher_list(server, client, NULL,
2147 SILC_NOTIFY_TYPE_NICK_CHANGE);
2150 /* Send the new Client ID as reply command back to client */
2151 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_NICK,
2152 SILC_STATUS_OK, 0, ident, 2,
2153 2, nidp->data, nidp->len,
2154 3, nick, strlen(nick));
2155 silc_server_packet_send(cmd->server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
2156 0, packet->data, packet->len, FALSE);
2158 silc_buffer_free(packet);
2159 silc_buffer_free(nidp);
2161 silc_buffer_free(oidp);
2164 silc_server_command_free(cmd);
2167 /* Sends the LIST command reply */
2170 silc_server_command_list_send_reply(SilcServerCommandContext cmd,
2171 SilcChannelEntry *lch,
2172 SilcUInt32 lch_count,
2173 SilcChannelEntry *gch,
2174 SilcUInt32 gch_count)
2177 SilcBuffer packet, idp;
2178 SilcChannelEntry entry;
2180 SilcUInt16 ident = silc_command_get_ident(cmd->payload);
2182 unsigned char usercount[4];
2184 int valid_lcount = 0, valid_rcount = 0;
2186 for (i = 0; i < lch_count; i++) {
2187 if (lch[i]->mode & SILC_CHANNEL_MODE_SECRET)
2192 for (i = 0; i < gch_count; i++) {
2193 if (gch[i]->mode & SILC_CHANNEL_MODE_SECRET)
2199 status = SILC_STATUS_OK;
2200 if ((lch_count + gch_count) > 1)
2201 status = SILC_STATUS_LIST_START;
2204 for (i = 0, k = 0; i < lch_count; i++) {
2210 status = SILC_STATUS_LIST_ITEM;
2211 if (valid_lcount > 1 && k == valid_lcount - 1 && !valid_rcount)
2212 status = SILC_STATUS_LIST_END;
2214 idp = silc_id_payload_encode(entry->id, SILC_ID_CHANNEL);
2216 if (entry->mode & SILC_CHANNEL_MODE_PRIVATE) {
2217 topic = "*private*";
2218 memset(usercount, 0, sizeof(usercount));
2220 topic = entry->topic;
2221 users = silc_hash_table_count(entry->user_list);
2222 SILC_PUT32_MSB(users, usercount);
2225 /* Send the reply */
2227 silc_command_reply_payload_encode_va(SILC_COMMAND_LIST,
2228 status, 0, ident, 4,
2229 2, idp->data, idp->len,
2230 3, entry->channel_name,
2231 strlen(entry->channel_name),
2232 4, topic, topic ? strlen(topic) : 0,
2234 silc_server_packet_send(cmd->server, cmd->sock,
2235 SILC_PACKET_COMMAND_REPLY, 0, packet->data,
2236 packet->len, FALSE);
2237 silc_buffer_free(packet);
2238 silc_buffer_free(idp);
2243 for (i = 0, k = 0; i < gch_count; i++) {
2249 status = SILC_STATUS_LIST_ITEM;
2250 if (valid_rcount > 1 && k == valid_rcount - 1)
2251 status = SILC_STATUS_LIST_END;
2253 idp = silc_id_payload_encode(entry->id, SILC_ID_CHANNEL);
2255 if (entry->mode & SILC_CHANNEL_MODE_PRIVATE) {
2256 topic = "*private*";
2257 memset(usercount, 0, sizeof(usercount));
2259 topic = entry->topic;
2260 users = entry->user_count;
2261 SILC_PUT32_MSB(users, usercount);
2264 /* Send the reply */
2266 silc_command_reply_payload_encode_va(SILC_COMMAND_LIST,
2267 status, 0, ident, 4,
2268 2, idp->data, idp->len,
2269 3, entry->channel_name,
2270 strlen(entry->channel_name),
2271 4, topic, topic ? strlen(topic) : 0,
2273 silc_server_packet_send(cmd->server, cmd->sock,
2274 SILC_PACKET_COMMAND_REPLY, 0, packet->data,
2275 packet->len, FALSE);
2276 silc_buffer_free(packet);
2277 silc_buffer_free(idp);
2282 /* Server side of LIST command. This lists the channel of the requested
2283 server. Secret channels are not listed. */
2285 SILC_SERVER_CMD_FUNC(list)
2287 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
2288 SilcServer server = cmd->server;
2289 SilcChannelID *channel_id = NULL;
2292 SilcChannelEntry *lchannels = NULL, *gchannels = NULL;
2293 SilcUInt32 lch_count = 0, gch_count = 0;
2295 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_LIST, cmd, 0, 1);
2297 /* If we are normal server, send the command to router, since we
2298 want to know all channels in the network. */
2299 if (!cmd->pending && server->server_type == SILC_SERVER &&
2300 !server->standalone) {
2302 SilcUInt16 old_ident;
2304 old_ident = silc_command_get_ident(cmd->payload);
2305 silc_command_set_ident(cmd->payload, ++server->cmd_ident);
2306 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
2307 silc_server_packet_send(server, server->router->connection,
2308 SILC_PACKET_COMMAND, cmd->packet->flags,
2309 tmpbuf->data, tmpbuf->len, TRUE);
2311 /* Reprocess this packet after received reply from router */
2312 silc_server_command_pending(server, SILC_COMMAND_LIST,
2313 silc_command_get_ident(cmd->payload),
2314 silc_server_command_list,
2315 silc_server_command_dup(cmd));
2316 cmd->pending = TRUE;
2317 silc_command_set_ident(cmd->payload, old_ident);
2318 silc_buffer_free(tmpbuf);
2322 /* Get Channel ID */
2323 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
2325 channel_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
2327 silc_server_command_send_status_reply(cmd, SILC_COMMAND_LIST,
2328 SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
2333 /* Get the channels from local list */
2334 lchannels = silc_idlist_get_channels(server->local_list, channel_id,
2337 /* Get the channels from global list */
2338 gchannels = silc_idlist_get_channels(server->global_list, channel_id,
2341 /* Send the reply */
2342 silc_server_command_list_send_reply(cmd, lchannels, lch_count,
2343 gchannels, gch_count);
2345 silc_free(lchannels);
2346 silc_free(gchannels);
2349 silc_server_command_free(cmd);
2352 /* Server side of TOPIC command. Sets topic for channel and/or returns
2353 current topic to client. */
2355 SILC_SERVER_CMD_FUNC(topic)
2357 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
2358 SilcServer server = cmd->server;
2359 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
2360 SilcChannelID *channel_id;
2361 SilcChannelEntry channel;
2362 SilcChannelClientEntry chl;
2363 SilcBuffer packet, idp;
2365 SilcUInt32 argc, tmp_len;
2366 SilcUInt16 ident = silc_command_get_ident(cmd->payload);
2368 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_TOPIC, cmd, 1, 2);
2370 argc = silc_argument_get_arg_num(cmd->args);
2372 /* Get Channel ID */
2373 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
2375 silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
2376 SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
2379 channel_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
2381 silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
2382 SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
2386 /* Check whether the channel exists */
2387 channel = silc_idlist_find_channel_by_id(server->local_list,
2390 channel = silc_idlist_find_channel_by_id(server->global_list,
2393 silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
2394 SILC_STATUS_ERR_NO_SUCH_CHANNEL,
2402 tmp = silc_argument_get_arg_type(cmd->args, 2, NULL);
2404 silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
2405 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
2410 if (strlen(tmp) > 256) {
2411 silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
2412 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
2417 /* See whether the client is on channel and has rights to change topic */
2418 if (!silc_server_client_on_channel(client, channel, &chl)) {
2419 silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
2420 SILC_STATUS_ERR_NOT_ON_CHANNEL,
2425 if (channel->mode & SILC_CHANNEL_MODE_TOPIC &&
2426 !(chl->mode & SILC_CHANNEL_UMODE_CHANOP) &&
2427 !(chl->mode & SILC_CHANNEL_UMODE_CHANFO)) {
2428 silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
2429 SILC_STATUS_ERR_NO_CHANNEL_PRIV,
2434 /* Set the topic for channel */
2435 silc_free(channel->topic);
2436 channel->topic = strdup(tmp);
2438 /* Send TOPIC_SET notify type to the network */
2439 if (!server->standalone)
2440 silc_server_send_notify_topic_set(server, server->router->connection,
2441 server->server_type == SILC_ROUTER ?
2442 TRUE : FALSE, channel,
2443 client->id, SILC_ID_CLIENT,
2446 idp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
2448 /* Send notify about topic change to all clients on the channel */
2449 silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
2450 SILC_NOTIFY_TYPE_TOPIC_SET, 2,
2451 idp->data, idp->len,
2452 channel->topic, strlen(channel->topic));
2453 silc_buffer_free(idp);
2456 /* Send the topic to client as reply packet */
2457 idp = silc_id_payload_encode(channel_id, SILC_ID_CHANNEL);
2458 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_TOPIC,
2459 SILC_STATUS_OK, 0, ident, 2,
2460 2, idp->data, idp->len,
2463 strlen(channel->topic) : 0);
2464 silc_server_packet_send(cmd->server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
2465 0, packet->data, packet->len, FALSE);
2467 silc_buffer_free(packet);
2468 silc_buffer_free(idp);
2469 silc_free(channel_id);
2472 silc_server_command_free(cmd);
2475 /* Server side of INVITE command. Invites some client to join some channel.
2476 This command is also used to manage the invite list of the channel. */
2478 SILC_SERVER_CMD_FUNC(invite)
2480 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
2481 SilcServer server = cmd->server;
2482 SilcSocketConnection sock = cmd->sock, dest_sock;
2483 SilcChannelClientEntry chl;
2484 SilcClientEntry sender, dest;
2485 SilcClientID *dest_id = NULL;
2486 SilcChannelEntry channel;
2487 SilcChannelID *channel_id = NULL;
2488 SilcIDListData idata;
2489 SilcBuffer idp, idp2, packet;
2490 unsigned char *tmp, *add, *del;
2492 SilcUInt16 ident = silc_command_get_ident(cmd->payload);
2494 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_INVITE, cmd, 1, 4);
2496 /* Get Channel ID */
2497 tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
2499 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
2500 SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
2503 channel_id = silc_id_payload_parse_id(tmp, len, NULL);
2505 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
2506 SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
2510 /* Get the channel entry */
2511 channel = silc_idlist_find_channel_by_id(server->local_list,
2514 channel = silc_idlist_find_channel_by_id(server->global_list,
2517 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
2518 SILC_STATUS_ERR_NO_SUCH_CHANNEL,
2524 /* Check whether the sender of this command is on the channel. */
2525 sender = (SilcClientEntry)sock->user_data;
2526 if (!silc_server_client_on_channel(sender, channel, &chl)) {
2527 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
2528 SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
2532 /* Check whether the channel is invite-only channel. If yes then the
2533 sender of this command must be at least channel operator. */
2534 if (channel->mode & SILC_CHANNEL_MODE_INVITE &&
2535 !(chl->mode & SILC_CHANNEL_UMODE_CHANOP) &&
2536 !(chl->mode & SILC_CHANNEL_UMODE_CHANFO)) {
2537 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
2538 SILC_STATUS_ERR_NO_CHANNEL_PRIV,
2543 /* Get destination client ID */
2544 tmp = silc_argument_get_arg_type(cmd->args, 2, &len);
2549 dest_id = silc_id_payload_parse_id(tmp, len, NULL);
2551 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
2552 SILC_STATUS_ERR_NO_CLIENT_ID, 0);
2556 /* Get the client entry */
2557 dest = silc_server_get_client_resolve(server, dest_id, FALSE, &resolve);
2559 if (server->server_type != SILC_SERVER || !resolve) {
2560 silc_server_command_send_status_reply(
2561 cmd, SILC_COMMAND_INVITE,
2562 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID, 0);
2566 /* The client info is being resolved. Reprocess this packet after
2567 receiving the reply to the query. */
2568 silc_server_command_pending(server, SILC_COMMAND_WHOIS,
2570 silc_server_command_invite,
2571 silc_server_command_dup(cmd));
2572 cmd->pending = TRUE;
2573 silc_free(channel_id);
2578 /* Check whether the requested client is already on the channel. */
2579 if (silc_server_client_on_channel(dest, channel, NULL)) {
2580 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
2581 SILC_STATUS_ERR_USER_ON_CHANNEL,
2586 /* Get route to the client */
2587 dest_sock = silc_server_get_client_route(server, NULL, 0, dest_id,
2590 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
2591 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
2596 memset(invite, 0, sizeof(invite));
2597 strncat(invite, dest->nickname, strlen(dest->nickname));
2598 strncat(invite, "!", 1);
2599 strncat(invite, dest->username, strlen(dest->username));
2600 if (!strchr(dest->username, '@')) {
2601 strncat(invite, "@", 1);
2602 strncat(invite, cmd->sock->hostname, strlen(cmd->sock->hostname));
2605 len = strlen(invite);
2606 if (!channel->invite_list)
2607 channel->invite_list = silc_calloc(len + 2,
2608 sizeof(*channel->invite_list));
2610 channel->invite_list = silc_realloc(channel->invite_list,
2611 sizeof(*channel->invite_list) *
2613 strlen(channel->invite_list) + 2));
2614 strncat(channel->invite_list, invite, len);
2615 strncat(channel->invite_list, ",", 1);
2617 if (!(dest->mode & SILC_UMODE_BLOCK_INVITE)) {
2618 /* Send notify to the client that is invited to the channel */
2619 idp = silc_id_payload_encode(channel_id, SILC_ID_CHANNEL);
2620 idp2 = silc_id_payload_encode(sender->id, SILC_ID_CLIENT);
2621 silc_server_send_notify_dest(server, dest_sock, FALSE, dest_id,
2623 SILC_NOTIFY_TYPE_INVITE, 3,
2624 idp->data, idp->len,
2625 channel->channel_name,
2626 strlen(channel->channel_name),
2627 idp2->data, idp2->len);
2628 silc_buffer_free(idp);
2629 silc_buffer_free(idp2);
2633 /* Add the client to the invite list of the channel */
2634 add = silc_argument_get_arg_type(cmd->args, 3, &len);
2636 if (!channel->invite_list)
2637 channel->invite_list = silc_calloc(len + 2,
2638 sizeof(*channel->invite_list));
2640 channel->invite_list = silc_realloc(channel->invite_list,
2641 sizeof(*channel->invite_list) *
2643 strlen(channel->invite_list) + 2));
2644 if (add[len - 1] == ',')
2645 add[len - 1] = '\0';
2647 strncat(channel->invite_list, add, len);
2648 strncat(channel->invite_list, ",", 1);
2651 /* Get the invite to be removed and remove it from the list */
2652 del = silc_argument_get_arg_type(cmd->args, 4, &len);
2653 if (del && channel->invite_list) {
2654 char *start, *end, *n;
2656 if (!strncmp(channel->invite_list, del,
2657 strlen(channel->invite_list) - 1)) {
2658 silc_free(channel->invite_list);
2659 channel->invite_list = NULL;
2661 start = strstr(channel->invite_list, del);
2662 if (start && strlen(start) >= len) {
2664 n = silc_calloc(strlen(channel->invite_list) - len, sizeof(*n));
2665 strncat(n, channel->invite_list, start - channel->invite_list);
2666 strncat(n, end + 1, ((channel->invite_list +
2667 strlen(channel->invite_list)) - end) - 1);
2668 silc_free(channel->invite_list);
2669 channel->invite_list = n;
2674 /* Send notify to the primary router */
2675 if (!server->standalone)
2676 silc_server_send_notify_invite(server, server->router->connection,
2677 server->server_type == SILC_ROUTER ?
2678 TRUE : FALSE, channel,
2679 sender->id, add, del);
2681 /* Send command reply */
2682 tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
2686 silc_command_reply_payload_encode_va(SILC_COMMAND_INVITE,
2687 SILC_STATUS_OK, 0, ident, 2,
2689 3, channel->invite_list,
2690 channel->invite_list ?
2691 strlen(channel->invite_list) : 0);
2694 silc_command_reply_payload_encode_va(SILC_COMMAND_INVITE,
2695 SILC_STATUS_OK, 0, ident, 1,
2697 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
2698 packet->data, packet->len, FALSE);
2699 silc_buffer_free(packet);
2703 silc_free(channel_id);
2704 silc_server_command_free(cmd);
2709 SilcSocketConnection sock;
2713 /* Quits connection to client. This gets called if client won't
2714 close the connection even when it has issued QUIT command. */
2716 SILC_TASK_CALLBACK(silc_server_command_quit_cb)
2718 QuitInternal q = (QuitInternal)context;
2720 /* Free all client specific data, such as client entry and entires
2721 on channels this client may be on. */
2722 silc_server_free_client_data(q->server, q->sock, q->sock->user_data,
2724 q->sock->user_data = NULL;
2726 /* Close the connection on our side */
2727 silc_server_close_connection(q->server, q->sock);
2729 silc_free(q->signoff);
2733 /* Quits SILC session. This is the normal way to disconnect client. */
2735 SILC_SERVER_CMD_FUNC(quit)
2737 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
2738 SilcServer server = cmd->server;
2739 SilcSocketConnection sock = cmd->sock;
2741 unsigned char *tmp = NULL;
2744 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_QUIT, cmd, 0, 1);
2746 if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
2750 tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
2754 q = silc_calloc(1, sizeof(*q));
2757 q->signoff = tmp ? strdup(tmp) : NULL;
2759 /* We quit the connection with little timeout */
2760 silc_schedule_task_add(server->schedule, sock->sock,
2761 silc_server_command_quit_cb, (void *)q,
2762 0, 200000, SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
2765 silc_server_command_free(cmd);
2768 /* Server side of command KILL. This command is used by router operator
2769 to remove an client from the SILC Network temporarily. */
2771 SILC_SERVER_CMD_FUNC(kill)
2773 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
2774 SilcServer server = cmd->server;
2775 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
2776 SilcClientEntry remote_client;
2777 SilcClientID *client_id;
2778 unsigned char *tmp, *comment;
2779 SilcUInt32 tmp_len, tmp_len2;
2782 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_KILL, cmd, 1, 2);
2784 if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
2787 /* KILL command works only on router */
2788 if (server->server_type != SILC_ROUTER) {
2789 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
2790 SILC_STATUS_ERR_NO_ROUTER_PRIV, 0);
2794 /* Check whether client has the permissions. */
2795 if (!(client->mode & SILC_UMODE_ROUTER_OPERATOR)) {
2796 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
2797 SILC_STATUS_ERR_NO_ROUTER_PRIV, 0);
2801 /* Get the client ID */
2802 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
2804 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
2805 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
2809 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
2811 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
2812 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
2817 /* Get the client entry */
2818 remote_client = silc_idlist_find_client_by_id(server->local_list,
2819 client_id, TRUE, NULL);
2821 if (!remote_client) {
2822 remote_client = silc_idlist_find_client_by_id(server->global_list,
2823 client_id, TRUE, NULL);
2825 if (!remote_client) {
2826 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
2827 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
2834 comment = silc_argument_get_arg_type(cmd->args, 2, &tmp_len2);
2838 /* Send reply to the sender */
2839 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
2842 /* Check if anyone is watching this nickname */
2843 if (server->server_type == SILC_ROUTER)
2844 silc_server_check_watcher_list(server, client, NULL,
2845 SILC_NOTIFY_TYPE_KILLED);
2847 /* Now do the killing */
2848 silc_server_kill_client(server, remote_client, comment, client->id,
2852 silc_server_command_free(cmd);
2855 /* Server side of command INFO. This sends information about us to
2856 the client. If client requested specific server we will send the
2857 command to that server. */
2859 SILC_SERVER_CMD_FUNC(info)
2861 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
2862 SilcServer server = cmd->server;
2863 SilcBuffer packet, idp;
2866 char *dest_server, *server_info = NULL, *server_name;
2867 SilcUInt16 ident = silc_command_get_ident(cmd->payload);
2868 SilcServerEntry entry = NULL;
2869 SilcServerID *server_id = NULL;
2871 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_INFO, cmd, 0, 2);
2873 /* Get server name */
2874 dest_server = silc_argument_get_arg_type(cmd->args, 1, NULL);
2877 tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
2879 server_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
2881 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
2882 SILC_STATUS_ERR_NO_SERVER_ID, 0);
2888 /* Check whether we have this server cached */
2889 entry = silc_idlist_find_server_by_id(server->local_list,
2890 server_id, TRUE, NULL);
2892 entry = silc_idlist_find_server_by_id(server->global_list,
2893 server_id, TRUE, NULL);
2894 if (!entry && server->server_type != SILC_SERVER) {
2895 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
2896 SILC_STATUS_ERR_NO_SUCH_SERVER,
2903 /* Some buggy servers has sent request to router about themselves. */
2904 if (server->server_type != SILC_SERVER && cmd->sock->user_data == entry)
2907 if ((!dest_server && !server_id && !entry) || (entry &&
2908 entry == server->id_entry) ||
2909 (dest_server && !cmd->pending &&
2910 !strncasecmp(dest_server, server->server_name, strlen(dest_server)))) {
2911 /* Send our reply */
2912 char info_string[256];
2914 memset(info_string, 0, sizeof(info_string));
2915 snprintf(info_string, sizeof(info_string),
2916 "location: %s server: %s admin: %s <%s>",
2917 server->config->server_info->location,
2918 server->config->server_info->server_type,
2919 server->config->server_info->admin,
2920 server->config->server_info->email);
2922 server_info = info_string;
2923 entry = server->id_entry;
2925 /* Check whether we have this server cached */
2926 if (!entry && dest_server) {
2927 entry = silc_idlist_find_server_by_name(server->global_list,
2928 dest_server, TRUE, NULL);
2930 entry = silc_idlist_find_server_by_name(server->local_list,
2931 dest_server, TRUE, NULL);
2935 if (!cmd->pending &&
2936 server->server_type != SILC_SERVER && entry && !entry->server_info) {
2937 /* Send to the server */
2939 SilcUInt16 old_ident;
2941 old_ident = silc_command_get_ident(cmd->payload);
2942 silc_command_set_ident(cmd->payload, ++server->cmd_ident);
2943 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
2945 silc_server_packet_send(server, entry->connection,
2946 SILC_PACKET_COMMAND, cmd->packet->flags,
2947 tmpbuf->data, tmpbuf->len, TRUE);
2949 /* Reprocess this packet after received reply from router */
2950 silc_server_command_pending(server, SILC_COMMAND_INFO,
2951 silc_command_get_ident(cmd->payload),
2952 silc_server_command_info,
2953 silc_server_command_dup(cmd));
2954 cmd->pending = TRUE;
2955 silc_command_set_ident(cmd->payload, old_ident);
2956 silc_buffer_free(tmpbuf);
2960 if (!entry && !cmd->pending && !server->standalone) {
2961 /* Send to the primary router */
2963 SilcUInt16 old_ident;
2965 old_ident = silc_command_get_ident(cmd->payload);
2966 silc_command_set_ident(cmd->payload, ++server->cmd_ident);
2967 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
2969 silc_server_packet_send(server, server->router->connection,
2970 SILC_PACKET_COMMAND, cmd->packet->flags,
2971 tmpbuf->data, tmpbuf->len, TRUE);
2973 /* Reprocess this packet after received reply from router */
2974 silc_server_command_pending(server, SILC_COMMAND_INFO,
2975 silc_command_get_ident(cmd->payload),
2976 silc_server_command_info,
2977 silc_server_command_dup(cmd));
2978 cmd->pending = TRUE;
2979 silc_command_set_ident(cmd->payload, old_ident);
2980 silc_buffer_free(tmpbuf);
2985 silc_free(server_id);
2988 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
2989 SILC_STATUS_ERR_NO_SUCH_SERVER, 0);
2993 idp = silc_id_payload_encode(entry->id, SILC_ID_SERVER);
2995 server_info = entry->server_info;
2996 server_name = entry->server_name;
2998 /* Send the reply */
2999 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_INFO,
3000 SILC_STATUS_OK, 0, ident, 3,
3001 2, idp->data, idp->len,
3003 strlen(server_name),
3006 strlen(server_info) : 0);
3007 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
3008 packet->data, packet->len, FALSE);
3010 silc_buffer_free(packet);
3011 silc_buffer_free(idp);
3014 silc_server_command_free(cmd);
3017 /* Server side of command PING. This just replies to the ping. */
3019 SILC_SERVER_CMD_FUNC(ping)
3021 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
3022 SilcServer server = cmd->server;
3027 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_INFO, cmd, 1, 2);
3030 tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
3032 silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
3033 SILC_STATUS_ERR_NO_SERVER_ID, 0);
3036 id = silc_id_str2id(tmp, len, SILC_ID_SERVER);
3040 if (SILC_ID_SERVER_COMPARE(id, server->id)) {
3041 /* Send our reply */
3042 silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
3045 silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
3046 SILC_STATUS_ERR_NO_SUCH_SERVER, 0);
3053 silc_server_command_free(cmd);
3056 /* Server side of command STATS. */
3058 SILC_SERVER_CMD_FUNC(stats)
3060 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
3061 SilcServer server = cmd->server;
3062 SilcServerID *server_id;
3065 SilcBuffer packet, stats;
3066 SilcUInt16 ident = silc_command_get_ident(cmd->payload);
3069 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_STATS, cmd, 1, 1);
3072 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
3074 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
3075 SILC_STATUS_ERR_NO_SERVER_ID, 0);
3078 server_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
3082 /* The ID must be ours */
3083 if (!SILC_ID_SERVER_COMPARE(server->id, server_id)) {
3084 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
3085 SILC_STATUS_ERR_NO_SUCH_SERVER, 0);
3086 silc_free(server_id);
3089 silc_free(server_id);
3091 /* If we are router then just send everything we got. If we are normal
3092 server then we'll send this to our router to get all the latest
3093 statistical information. */
3094 if (!cmd->pending && server->server_type != SILC_ROUTER &&
3095 !server->standalone) {
3096 /* Send request to our router */
3097 SilcBuffer idp = silc_id_payload_encode(server->router->id,
3099 packet = silc_command_payload_encode_va(SILC_COMMAND_STATS,
3100 ++server->cmd_ident, 1,
3101 1, idp->data, idp->len);
3102 silc_server_packet_send(server, server->router->connection,
3103 SILC_PACKET_COMMAND, 0, packet->data,
3104 packet->len, FALSE);
3106 /* Reprocess this packet after received reply from router */
3107 silc_server_command_pending(server, SILC_COMMAND_STATS,
3109 silc_server_command_stats,
3110 silc_server_command_dup(cmd));
3111 cmd->pending = TRUE;
3112 silc_buffer_free(packet);
3113 silc_buffer_free(idp);
3117 /* Send our reply to sender */
3118 uptime = time(NULL) - server->starttime;
3120 stats = silc_buffer_alloc_size(60);
3121 silc_buffer_format(stats,
3122 SILC_STR_UI_INT(server->starttime),
3123 SILC_STR_UI_INT(uptime),
3124 SILC_STR_UI_INT(server->stat.my_clients),
3125 SILC_STR_UI_INT(server->stat.my_channels),
3126 SILC_STR_UI_INT(server->stat.my_server_ops),
3127 SILC_STR_UI_INT(server->stat.my_router_ops),
3128 SILC_STR_UI_INT(server->stat.cell_clients),
3129 SILC_STR_UI_INT(server->stat.cell_channels),
3130 SILC_STR_UI_INT(server->stat.cell_servers),
3131 SILC_STR_UI_INT(server->stat.clients),
3132 SILC_STR_UI_INT(server->stat.channels),
3133 SILC_STR_UI_INT(server->stat.servers),
3134 SILC_STR_UI_INT(server->stat.routers),
3135 SILC_STR_UI_INT(server->stat.server_ops),
3136 SILC_STR_UI_INT(server->stat.router_ops),
3139 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_STATS,
3140 SILC_STATUS_OK, 0, ident, 2,
3142 3, stats->data, stats->len);
3143 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
3144 0, packet->data, packet->len, FALSE);
3145 silc_buffer_free(packet);
3146 silc_buffer_free(stats);
3149 silc_server_command_free(cmd);
3152 /* Internal routine to join channel. The channel sent to this function
3153 has been either created or resolved from ID lists. This joins the sent
3154 client to the channel. */
3156 static void silc_server_command_join_channel(SilcServer server,
3157 SilcServerCommandContext cmd,
3158 SilcChannelEntry channel,
3159 SilcClientID *client_id,
3163 const unsigned char *auth,
3164 SilcUInt32 auth_len)
3166 SilcSocketConnection sock = cmd->sock;
3168 SilcUInt32 tmp_len, user_count;
3169 unsigned char *passphrase = NULL, mode[4], tmp2[4], tmp3[4];
3170 SilcClientEntry client;
3171 SilcChannelClientEntry chl;
3172 SilcBuffer reply, chidp, clidp, keyp = NULL, user_list, mode_list;
3173 SilcUInt16 ident = silc_command_get_ident(cmd->payload);
3174 char check[512], check2[512];
3175 bool founder = FALSE;
3177 unsigned char *fkey = NULL;
3178 SilcUInt32 fkey_len = 0;
3180 SILC_LOG_DEBUG(("Start"));
3185 /* Get the client entry */
3186 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
3187 client = (SilcClientEntry)sock->user_data;
3189 client = silc_server_get_client_resolve(server, client_id, FALSE,
3196 silc_server_command_send_status_reply(
3197 cmd, SILC_COMMAND_JOIN,
3198 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
3202 /* The client info is being resolved. Reprocess this packet after
3203 receiving the reply to the query. */
3204 silc_server_command_pending(server, SILC_COMMAND_WHOIS,
3206 silc_server_command_join,
3207 silc_server_command_dup(cmd));
3208 cmd->pending = TRUE;
3212 cmd->pending = FALSE;
3216 * Check founder auth payload if provided. If client can gain founder
3217 * privileges it can override various conditions on joining the channel,
3218 * and can have directly the founder mode set on the channel.
3220 if (auth && auth_len && channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
3221 SilcIDListData idata = (SilcIDListData)client;
3223 if (channel->founder_key && idata->public_key &&
3224 silc_pkcs_public_key_compare(channel->founder_key,
3225 idata->public_key)) {
3226 /* Check whether the client is to become founder */
3227 if (silc_auth_verify_data(auth, auth_len, SILC_AUTH_PUBLIC_KEY,
3228 channel->founder_key, 0, server->sha1hash,
3229 client->id, SILC_ID_CLIENT)) {
3230 umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
3237 * Check channel modes
3241 memset(check, 0, sizeof(check));
3242 memset(check2, 0, sizeof(check2));
3243 strncat(check, client->nickname, strlen(client->nickname));
3244 strncat(check, "!", 1);
3245 strncat(check, client->username, strlen(client->username));
3246 if (!strchr(client->username, '@')) {
3247 strncat(check, "@", 1);
3248 strncat(check, cmd->sock->hostname, strlen(cmd->sock->hostname));
3251 strncat(check2, client->nickname, strlen(client->nickname));
3252 if (!strchr(client->nickname, '@')) {
3253 strncat(check2, "@", 1);
3254 strncat(check2, server->server_name, strlen(server->server_name));
3256 strncat(check2, "!", 1);
3257 strncat(check2, client->username, strlen(client->username));
3258 if (!strchr(client->username, '@')) {
3259 strncat(check2, "@", 1);
3260 strncat(check2, cmd->sock->hostname, strlen(cmd->sock->hostname));
3263 /* Check invite list if channel is invite-only channel */
3264 if (channel->mode & SILC_CHANNEL_MODE_INVITE) {
3265 if (!channel->invite_list ||
3266 (!silc_string_match(channel->invite_list, check) &&
3267 !silc_string_match(channel->invite_list, check2))) {
3268 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3269 SILC_STATUS_ERR_NOT_INVITED, 0);
3274 /* Check ban list if it exists. If the client's nickname, server,
3275 username and/or hostname is in the ban list the access to the
3276 channel is denied. */
3277 if (channel->ban_list) {
3278 if (silc_string_match(channel->ban_list, check) ||
3279 silc_string_match(channel->ban_list, check2)) {
3280 silc_server_command_send_status_reply(
3281 cmd, SILC_COMMAND_JOIN,
3282 SILC_STATUS_ERR_BANNED_FROM_CHANNEL, 0);
3287 /* Check user count limit if set. */
3288 if (channel->mode & SILC_CHANNEL_MODE_ULIMIT) {
3289 if (silc_hash_table_count(channel->user_list) + 1 >
3290 channel->user_limit) {
3291 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3292 SILC_STATUS_ERR_CHANNEL_IS_FULL,
3299 /* Check the channel passphrase if set. */
3300 if (channel->mode & SILC_CHANNEL_MODE_PASSPHRASE) {
3301 /* Get passphrase */
3302 tmp = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
3304 passphrase = silc_memdup(tmp, tmp_len);
3306 if (!passphrase || !channel->passphrase ||
3307 memcmp(passphrase, channel->passphrase, strlen(channel->passphrase))) {
3308 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3309 SILC_STATUS_ERR_BAD_PASSWORD, 0);
3315 * Client is allowed to join to the channel. Make it happen.
3318 /* Check whether the client already is on the channel */
3319 if (silc_server_client_on_channel(client, channel, NULL)) {
3320 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3321 SILC_STATUS_ERR_USER_ON_CHANNEL, 0);
3325 /* Generate new channel key as protocol dictates */
3327 if (!silc_server_create_channel_key(server, channel, 0))
3330 /* Send the channel key. This is broadcasted to the channel but is not
3331 sent to the client who is joining to the channel. */
3332 if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY))
3333 silc_server_send_channel_key(server, NULL, channel,
3334 server->server_type == SILC_ROUTER ?
3335 FALSE : !server->standalone);
3338 /* Join the client to the channel by adding it to channel's user list.
3339 Add also the channel to client entry's channels list for fast cross-
3341 chl = silc_calloc(1, sizeof(*chl));
3343 chl->client = client;
3344 chl->channel = channel;
3345 silc_hash_table_add(channel->user_list, client, chl);
3346 silc_hash_table_add(client->channels, channel, chl);
3347 channel->user_count++;
3348 channel->disabled = FALSE;
3350 /* Get users on the channel */
3351 silc_server_get_users_on_channel(server, channel, &user_list, &mode_list,
3354 /* Encode Client ID Payload of the original client who wants to join */
3355 clidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
3357 /* Encode command reply packet */
3358 chidp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
3359 SILC_PUT32_MSB(channel->mode, mode);
3360 SILC_PUT32_MSB(created, tmp2);
3361 SILC_PUT32_MSB(user_count, tmp3);
3363 if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
3364 tmp = silc_id_id2str(channel->id, SILC_ID_CHANNEL);
3365 keyp = silc_channel_key_payload_encode(silc_id_get_len(channel->id,
3368 strlen(channel->channel_key->
3370 channel->channel_key->cipher->name,
3371 channel->key_len / 8, channel->key);
3375 if (channel->founder_key)
3376 fkey = silc_pkcs_public_key_encode(channel->founder_key, &fkey_len);
3379 silc_command_reply_payload_encode_va(SILC_COMMAND_JOIN,
3380 SILC_STATUS_OK, 0, ident, 14,
3381 2, channel->channel_name,
3382 strlen(channel->channel_name),
3383 3, chidp->data, chidp->len,
3384 4, clidp->data, clidp->len,
3387 7, keyp ? keyp->data : NULL,
3388 keyp ? keyp->len : 0,
3389 8, channel->ban_list,
3391 strlen(channel->ban_list) : 0,
3392 9, channel->invite_list,
3393 channel->invite_list ?
3394 strlen(channel->invite_list) : 0,
3397 strlen(channel->topic) : 0,
3398 11, silc_hmac_get_name(channel->hmac),
3399 strlen(silc_hmac_get_name(channel->
3402 13, user_list->data, user_list->len,
3403 14, mode_list->data,
3405 15, fkey, fkey_len);
3407 /* Send command reply */
3408 silc_server_packet_send(server, sock, SILC_PACKET_COMMAND_REPLY, 0,
3409 reply->data, reply->len, FALSE);
3411 /* Send JOIN notify to locally connected clients on the channel. If
3412 we are normal server then router will send or have sent JOIN notify
3413 already. However since we've added the client already to our channel
3414 we'll ignore it (in packet_receive.c) so we must send it here. If
3415 we are router then this will send it to local clients and local
3417 silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
3418 SILC_NOTIFY_TYPE_JOIN, 2,
3419 clidp->data, clidp->len,
3420 chidp->data, chidp->len);
3422 if (!cmd->pending) {
3423 /* Send JOIN notify packet to our primary router */
3424 if (!server->standalone)
3425 silc_server_send_notify_join(server, server->router->connection,
3426 server->server_type == SILC_ROUTER ?
3427 TRUE : FALSE, channel, client->id);
3430 /* Distribute the channel key to all backup routers. */
3431 silc_server_backup_send(server, NULL, SILC_PACKET_CHANNEL_KEY, 0,
3432 keyp->data, keyp->len, FALSE, TRUE);
3434 /* If client became founder by providing correct founder auth data
3435 notify the mode change to the channel. */
3437 SILC_PUT32_MSB(chl->mode, mode);
3438 silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
3439 SILC_NOTIFY_TYPE_CUMODE_CHANGE, 4,
3440 clidp->data, clidp->len,
3441 mode, 4, clidp->data, clidp->len,
3444 /* Set CUMODE notify type to network */
3445 if (!server->standalone)
3446 silc_server_send_notify_cumode(server, server->router->connection,
3447 server->server_type == SILC_ROUTER ?
3448 TRUE : FALSE, channel,
3449 chl->mode, client->id, SILC_ID_CLIENT,
3450 client->id, channel->founder_key);
3454 silc_buffer_free(reply);
3455 silc_buffer_free(clidp);
3456 silc_buffer_free(chidp);
3457 silc_buffer_free(keyp);
3458 silc_buffer_free(user_list);
3459 silc_buffer_free(mode_list);
3463 silc_free(passphrase);
3466 /* Server side of command JOIN. Joins client into requested channel. If
3467 the channel does not exist it will be created. */
3469 SILC_SERVER_CMD_FUNC(join)
3471 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
3472 SilcServer server = cmd->server;
3473 unsigned char *auth;
3474 SilcUInt32 tmp_len, auth_len;
3475 char *tmp, *channel_name = NULL, *cipher, *hmac;
3476 SilcChannelEntry channel;
3477 SilcUInt32 umode = 0;
3478 bool created = FALSE, create_key = TRUE;
3479 SilcClientID *client_id;
3481 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_JOIN, cmd, 2, 6);
3483 /* Get channel name */
3484 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
3486 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3487 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
3494 channel_name[255] = '\0';
3496 if (silc_server_name_bad_chars(channel_name, tmp_len) == TRUE) {
3497 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3498 SILC_STATUS_ERR_BAD_CHANNEL, 0);
3502 /* Get Client ID of the client who is joining to the channel */
3503 tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
3505 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3506 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
3510 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
3512 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3513 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
3518 /* Get cipher, hmac name and auth payload */
3519 cipher = silc_argument_get_arg_type(cmd->args, 4, NULL);
3520 hmac = silc_argument_get_arg_type(cmd->args, 5, NULL);
3521 auth = silc_argument_get_arg_type(cmd->args, 6, &auth_len);
3523 /* See if the channel exists */
3524 channel = silc_idlist_find_channel_by_name(server->local_list,
3525 channel_name, NULL);
3527 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
3528 SilcClientEntry entry = (SilcClientEntry)cmd->sock->user_data;
3529 client_id = silc_id_dup(entry->id, SILC_ID_CLIENT);
3532 (channel->disabled && server->server_type != SILC_ROUTER)) {
3533 /* Channel not found */
3535 /* If we are standalone server we don't have a router, we just create
3536 the channel by ourselves. */
3537 if (server->standalone) {
3538 channel = silc_server_create_new_channel(server, server->id, cipher,
3539 hmac, channel_name, TRUE);
3541 silc_server_command_send_status_reply(
3542 cmd, SILC_COMMAND_JOIN,
3543 SILC_STATUS_ERR_UNKNOWN_ALGORITHM,
3548 umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
3554 /* The channel does not exist on our server. If we are normal server
3555 we will send JOIN command to our router which will handle the
3556 joining procedure (either creates the channel if it doesn't exist
3557 or joins the client to it). */
3558 if (server->server_type != SILC_ROUTER) {
3560 SilcUInt16 old_ident;
3562 /* If this is pending command callback then we've resolved
3563 it and it didn't work, return since we've notified the
3564 client already in the command reply callback. */
3568 old_ident = silc_command_get_ident(cmd->payload);
3569 silc_command_set_ident(cmd->payload, ++server->cmd_ident);
3570 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
3572 /* Send JOIN command to our router */
3573 silc_server_packet_send(server, (SilcSocketConnection)
3574 server->router->connection,
3575 SILC_PACKET_COMMAND, cmd->packet->flags,
3576 tmpbuf->data, tmpbuf->len, TRUE);
3578 /* Reprocess this packet after received reply from router */
3579 silc_server_command_pending(server, SILC_COMMAND_JOIN,
3580 silc_command_get_ident(cmd->payload),
3581 silc_server_command_join,
3582 silc_server_command_dup(cmd));
3583 cmd->pending = TRUE;
3584 silc_command_set_ident(cmd->payload, old_ident);
3585 silc_buffer_free(tmpbuf);
3589 /* We are router and the channel does not seem exist so we will check
3590 our global list as well for the channel. */
3591 channel = silc_idlist_find_channel_by_name(server->global_list,
3592 channel_name, NULL);
3594 /* Channel really does not exist, create it */
3595 channel = silc_server_create_new_channel(server, server->id, cipher,
3596 hmac, channel_name, TRUE);
3598 silc_server_command_send_status_reply(
3599 cmd, SILC_COMMAND_JOIN,
3600 SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
3604 umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
3612 /* Channel not found */
3614 /* If the command came from router and we are normal server then
3615 something went wrong with the joining as the channel was not found.
3616 We can't do anything else but ignore this. */
3617 if (cmd->sock->type == SILC_SOCKET_TYPE_ROUTER ||
3618 server->server_type != SILC_ROUTER)
3621 /* We are router and the channel does not seem exist so we will check
3622 our global list as well for the channel. */
3623 channel = silc_idlist_find_channel_by_name(server->global_list,
3624 channel_name, NULL);
3626 /* Channel really does not exist, create it */
3627 channel = silc_server_create_new_channel(server, server->id, cipher,
3628 hmac, channel_name, TRUE);
3630 silc_server_command_send_status_reply(
3631 cmd, SILC_COMMAND_JOIN,
3632 SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
3636 umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
3643 /* Check whether the channel was created by our router */
3644 if (cmd->pending && context2) {
3645 SilcServerCommandReplyContext reply = context2;
3647 if (silc_command_get(reply->payload) == SILC_COMMAND_JOIN) {
3648 tmp = silc_argument_get_arg_type(reply->args, 6, NULL);
3649 SILC_GET32_MSB(created, tmp);
3650 if (silc_argument_get_arg_type(reply->args, 7, NULL))
3651 create_key = FALSE; /* Router returned the key already */
3654 if (silc_command_get(reply->payload) == SILC_COMMAND_WHOIS &&
3655 !channel->disabled && !silc_hash_table_count(channel->user_list))
3659 /* If the channel does not have global users and is also empty the client
3660 will be the channel founder and operator. */
3661 if (!channel->disabled &&
3662 !channel->global_users && !silc_hash_table_count(channel->user_list))
3663 umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
3665 /* Join to the channel */
3666 silc_server_command_join_channel(server, cmd, channel, client_id,
3667 created, create_key, umode,
3670 silc_free(client_id);
3673 silc_server_command_free(cmd);
3676 /* Server side of command MOTD. Sends server's current "message of the
3677 day" to the client. */
3679 SILC_SERVER_CMD_FUNC(motd)
3681 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
3682 SilcServer server = cmd->server;
3683 SilcBuffer packet, idp;
3684 char *motd, *dest_server;
3685 SilcUInt32 motd_len;
3686 SilcUInt16 ident = silc_command_get_ident(cmd->payload);
3688 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_MOTD, cmd, 1, 1);
3690 /* Get server name */
3691 dest_server = silc_argument_get_arg_type(cmd->args, 1, NULL);
3693 silc_server_command_send_status_reply(cmd, SILC_COMMAND_MOTD,
3694 SILC_STATUS_ERR_NO_SUCH_SERVER, 0);
3698 if (!strncasecmp(dest_server, server->server_name, strlen(dest_server))) {
3701 idp = silc_id_payload_encode(server->id_entry->id, SILC_ID_SERVER);
3703 if (server->config && server->config->server_info &&
3704 server->config->server_info->motd_file) {
3706 motd = silc_file_readfile(server->config->server_info->motd_file, &motd_len);
3711 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
3718 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
3724 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
3725 packet->data, packet->len, FALSE);
3726 silc_buffer_free(packet);
3727 silc_buffer_free(idp);
3729 SilcServerEntry entry;
3731 /* Check whether we have this server cached */
3732 entry = silc_idlist_find_server_by_name(server->global_list,
3733 dest_server, TRUE, NULL);
3735 entry = silc_idlist_find_server_by_name(server->local_list,
3736 dest_server, TRUE, NULL);
3739 if (server->server_type != SILC_SERVER && !cmd->pending &&
3740 entry && !entry->motd) {
3741 /* Send to the server */
3743 SilcUInt16 old_ident;
3745 old_ident = silc_command_get_ident(cmd->payload);
3746 silc_command_set_ident(cmd->payload, ++server->cmd_ident);
3747 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
3749 silc_server_packet_send(server, entry->connection,
3750 SILC_PACKET_COMMAND, cmd->packet->flags,
3751 tmpbuf->data, tmpbuf->len, TRUE);
3753 /* Reprocess this packet after received reply from router */
3754 silc_server_command_pending(server, SILC_COMMAND_MOTD,
3755 silc_command_get_ident(cmd->payload),
3756 silc_server_command_motd,
3757 silc_server_command_dup(cmd));
3758 cmd->pending = TRUE;
3759 silc_command_set_ident(cmd->payload, old_ident);
3760 silc_buffer_free(tmpbuf);
3764 if (!entry && !cmd->pending && !server->standalone) {
3765 /* Send to the primary router */
3767 SilcUInt16 old_ident;
3769 old_ident = silc_command_get_ident(cmd->payload);
3770 silc_command_set_ident(cmd->payload, ++server->cmd_ident);
3771 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
3773 silc_server_packet_send(server, server->router->connection,
3774 SILC_PACKET_COMMAND, cmd->packet->flags,
3775 tmpbuf->data, tmpbuf->len, TRUE);
3777 /* Reprocess this packet after received reply from router */
3778 silc_server_command_pending(server, SILC_COMMAND_MOTD,
3779 silc_command_get_ident(cmd->payload),
3780 silc_server_command_motd,
3781 silc_server_command_dup(cmd));
3782 cmd->pending = TRUE;
3783 silc_command_set_ident(cmd->payload, old_ident);
3784 silc_buffer_free(tmpbuf);
3789 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
3790 SILC_STATUS_ERR_NO_SUCH_SERVER, 0);
3794 idp = silc_id_payload_encode(server->id_entry->id, SILC_ID_SERVER);
3795 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
3796 SILC_STATUS_OK, 0, ident, 2,
3800 strlen(entry->motd) : 0);
3801 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
3802 packet->data, packet->len, FALSE);
3803 silc_buffer_free(packet);
3804 silc_buffer_free(idp);
3808 silc_server_command_free(cmd);
3811 /* Server side of command UMODE. Client can use this command to set/unset
3812 user mode. Client actually cannot set itself to be as server/router
3813 operator so this can be used only to unset the modes. */
3815 SILC_SERVER_CMD_FUNC(umode)
3817 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
3818 SilcServer server = cmd->server;
3819 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
3821 unsigned char *tmp_mask, m[4];
3822 SilcUInt32 mask = 0;
3823 SilcUInt16 ident = silc_command_get_ident(cmd->payload);
3824 bool set_mask = FALSE;
3826 if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
3829 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_UMODE, cmd, 1, 2);
3831 /* Get the client's mode mask */
3832 tmp_mask = silc_argument_get_arg_type(cmd->args, 2, NULL);
3834 SILC_GET32_MSB(mask, tmp_mask);
3839 /* Check that mode changing is allowed. */
3840 if (!silc_server_check_umode_rights(server, client, mask)) {
3841 silc_server_command_send_status_reply(cmd, SILC_COMMAND_UMODE,
3842 SILC_STATUS_ERR_PERM_DENIED, 0);
3846 /* Anonymous mode cannot be set by client */
3847 if (mask & SILC_UMODE_ANONYMOUS) {
3848 if (!(client->mode & SILC_UMODE_ANONYMOUS)) {
3849 silc_server_command_send_status_reply(cmd, SILC_COMMAND_UMODE,
3850 SILC_STATUS_ERR_PERM_DENIED, 0);
3854 if (client->mode & SILC_UMODE_ANONYMOUS) {
3855 silc_server_command_send_status_reply(cmd, SILC_COMMAND_UMODE,
3856 SILC_STATUS_ERR_PERM_DENIED, 0);
3861 /* Change the mode */
3862 client->mode = mask;
3864 /* Send UMODE change to primary router */
3865 if (!server->standalone)
3866 silc_server_send_notify_umode(server, server->router->connection, TRUE,
3867 client->id, client->mode);
3869 /* Check if anyone is watching this nickname */
3870 if (server->server_type == SILC_ROUTER)
3871 silc_server_check_watcher_list(server, client, NULL,
3872 SILC_NOTIFY_TYPE_UMODE_CHANGE);
3875 /* Send command reply to sender */
3876 SILC_PUT32_MSB(client->mode, m);
3877 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_UMODE,
3878 SILC_STATUS_OK, 0, ident, 1,
3880 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
3881 packet->data, packet->len, FALSE);
3882 silc_buffer_free(packet);
3885 silc_server_command_free(cmd);
3888 /* Server side command of CMODE. Changes channel mode */
3890 SILC_SERVER_CMD_FUNC(cmode)
3892 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
3893 SilcServer server = cmd->server;
3894 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
3895 SilcIDListData idata = (SilcIDListData)client;
3896 SilcChannelID *channel_id = NULL;
3897 SilcChannelEntry channel;
3898 SilcChannelClientEntry chl;
3899 SilcBuffer packet, cidp;
3900 unsigned char *tmp, *tmp_id, *tmp_mask;
3901 char *cipher = NULL, *hmac = NULL, *passphrase = NULL;
3902 SilcUInt32 mode_mask = 0, tmp_len, tmp_len2;
3903 SilcUInt16 ident = silc_command_get_ident(cmd->payload);
3904 bool set_mask = FALSE;
3905 SilcPublicKey founder_key = NULL;
3906 unsigned char *fkey = NULL;
3907 SilcUInt32 fkey_len = 0;
3909 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_CMODE, cmd, 1, 7);
3911 /* Get Channel ID */
3912 tmp_id = silc_argument_get_arg_type(cmd->args, 1, &tmp_len2);
3914 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3915 SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
3918 channel_id = silc_id_payload_parse_id(tmp_id, tmp_len2, NULL);
3920 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3921 SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
3925 /* Get the channel mode mask */
3926 tmp_mask = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
3928 SILC_GET32_MSB(mode_mask, tmp_mask);
3932 /* Get channel entry */
3933 channel = silc_idlist_find_channel_by_id(server->local_list,
3936 channel = silc_idlist_find_channel_by_id(server->global_list,
3939 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3940 SILC_STATUS_ERR_NO_SUCH_CHANNEL,
3946 /* Check whether this client is on the channel */
3947 if (!silc_server_client_on_channel(client, channel, &chl)) {
3948 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3949 SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
3953 /* Check that client has rights to change any requested channel modes */
3954 if (set_mask && !silc_server_check_cmode_rights(server, channel, chl,
3956 silc_server_command_send_status_reply(
3957 cmd, SILC_COMMAND_CMODE,
3958 (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP) ?
3959 SILC_STATUS_ERR_NO_CHANNEL_PRIV :
3960 SILC_STATUS_ERR_NO_CHANNEL_FOPRIV), 0);
3964 /* If mode mask was not sent as argument then merely return the current
3965 mode mask to the sender. */
3968 SILC_PUT32_MSB(channel->mode, m);
3969 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CMODE,
3970 SILC_STATUS_OK, 0, ident, 2,
3971 2, tmp_id, tmp_len2,
3973 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
3974 packet->data, packet->len, FALSE);
3975 silc_buffer_free(packet);
3980 * Check the modes. Modes that requires nothing special operation are
3984 if (mode_mask & SILC_CHANNEL_MODE_PRIVKEY) {
3985 /* Channel uses private keys to protect traffic. Client(s) has set the
3986 key locally they want to use, server does not know that key. */
3987 /* Nothing interesting to do here */
3989 if (channel->mode & SILC_CHANNEL_MODE_PRIVKEY) {
3990 /* The mode is removed and we need to generate and distribute
3991 new channel key. Clients are not using private channel keys
3992 anymore after this. */
3994 /* Re-generate channel key */
3995 if (!silc_server_create_channel_key(server, channel, 0))
3998 /* Send the channel key. This sends it to our local clients and if
3999 we are normal server to our router as well. */
4000 silc_server_send_channel_key(server, NULL, channel,
4001 server->server_type == SILC_ROUTER ?
4002 FALSE : !server->standalone);
4004 cipher = channel->channel_key->cipher->name;
4005 hmac = (char *)silc_hmac_get_name(channel->hmac);
4009 if (mode_mask & SILC_CHANNEL_MODE_ULIMIT) {
4010 /* User limit is set on channel */
4011 SilcUInt32 user_limit;
4013 /* Get user limit */
4014 tmp = silc_argument_get_arg_type(cmd->args, 3, NULL);
4016 if (!(channel->mode & SILC_CHANNEL_MODE_ULIMIT)) {
4017 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
4018 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
4022 SILC_GET32_MSB(user_limit, tmp);
4023 channel->user_limit = user_limit;
4026 if (channel->mode & SILC_CHANNEL_MODE_ULIMIT)
4027 /* User limit mode is unset. Remove user limit */
4028 channel->user_limit = 0;
4031 if (mode_mask & SILC_CHANNEL_MODE_PASSPHRASE) {
4032 if (!(channel->mode & SILC_CHANNEL_MODE_PASSPHRASE)) {
4033 /* Passphrase has been set to channel */
4035 /* Get the passphrase */
4036 tmp = silc_argument_get_arg_type(cmd->args, 4, NULL);
4038 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
4039 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
4043 /* Save the passphrase */
4044 passphrase = channel->passphrase = silc_memdup(tmp, strlen(tmp));
4047 if (channel->mode & SILC_CHANNEL_MODE_PASSPHRASE) {
4048 /* Passphrase mode is unset. remove the passphrase */
4049 silc_free(channel->passphrase);
4050 channel->passphrase = NULL;
4054 if (mode_mask & SILC_CHANNEL_MODE_CIPHER) {
4055 if (!(channel->mode & SILC_CHANNEL_MODE_CIPHER)) {
4056 /* Cipher to use protect the traffic */
4057 SilcCipher newkey, oldkey;
4060 cipher = silc_argument_get_arg_type(cmd->args, 5, NULL);
4062 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
4063 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
4067 /* Delete old cipher and allocate the new one */
4068 if (!silc_cipher_alloc(cipher, &newkey)) {
4069 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
4070 SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
4074 oldkey = channel->channel_key;
4075 channel->channel_key = newkey;
4077 /* Re-generate channel key */
4078 if (!silc_server_create_channel_key(server, channel, 0)) {
4079 /* We don't have new key, revert to old one */
4080 channel->channel_key = oldkey;
4084 /* Remove old channel key for good */
4085 silc_cipher_free(oldkey);
4087 /* Send the channel key. This sends it to our local clients and if
4088 we are normal server to our router as well. */
4089 silc_server_send_channel_key(server, NULL, channel,
4090 server->server_type == SILC_ROUTER ?
4091 FALSE : !server->standalone);
4094 if (channel->mode & SILC_CHANNEL_MODE_CIPHER) {
4095 /* Cipher mode is unset. Remove the cipher and revert back to
4097 SilcCipher newkey, oldkey;
4098 cipher = channel->cipher;
4100 /* Delete old cipher and allocate default one */
4101 if (!silc_cipher_alloc(cipher ? cipher : SILC_DEFAULT_CIPHER, &newkey)) {
4102 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
4103 SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
4107 oldkey = channel->channel_key;
4108 channel->channel_key = newkey;
4110 /* Re-generate channel key */
4111 if (!silc_server_create_channel_key(server, channel, 0)) {
4112 /* We don't have new key, revert to old one */
4113 channel->channel_key = oldkey;
4117 /* Remove old channel key for good */
4118 silc_cipher_free(oldkey);
4120 /* Send the channel key. This sends it to our local clients and if
4121 we are normal server to our router as well. */
4122 silc_server_send_channel_key(server, NULL, channel,
4123 server->server_type == SILC_ROUTER ?
4124 FALSE : !server->standalone);
4128 if (mode_mask & SILC_CHANNEL_MODE_HMAC) {
4129 if (!(channel->mode & SILC_CHANNEL_MODE_HMAC)) {
4130 /* HMAC to use protect the traffic */
4131 unsigned char hash[32];
4135 hmac = silc_argument_get_arg_type(cmd->args, 6, NULL);
4137 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
4138 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
4142 /* Delete old hmac and allocate the new one */
4143 if (!silc_hmac_alloc(hmac, NULL, &newhmac)) {
4144 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
4145 SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
4149 silc_hmac_free(channel->hmac);
4150 channel->hmac = newhmac;
4152 /* Set the HMAC key out of current channel key. The client must do
4154 silc_hash_make(silc_hmac_get_hash(channel->hmac), channel->key,
4155 channel->key_len / 8, hash);
4156 silc_hmac_set_key(channel->hmac, hash,
4157 silc_hash_len(silc_hmac_get_hash(channel->hmac)));
4158 memset(hash, 0, sizeof(hash));
4161 if (channel->mode & SILC_CHANNEL_MODE_HMAC) {
4162 /* Hmac mode is unset. Remove the hmac and revert back to
4165 unsigned char hash[32];
4166 hmac = channel->hmac_name;
4168 /* Delete old hmac and allocate default one */
4169 silc_hmac_free(channel->hmac);
4170 if (!silc_hmac_alloc(hmac ? hmac : SILC_DEFAULT_HMAC, NULL, &newhmac)) {
4171 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
4172 SILC_STATUS_ERR_UNKNOWN_ALGORITHM, 0);
4176 silc_hmac_free(channel->hmac);
4177 channel->hmac = newhmac;
4179 /* Set the HMAC key out of current channel key. The client must do
4181 silc_hash_make(silc_hmac_get_hash(channel->hmac), channel->key,
4182 channel->key_len / 8,
4184 silc_hmac_set_key(channel->hmac, hash,
4185 silc_hash_len(silc_hmac_get_hash(channel->hmac)));
4186 memset(hash, 0, sizeof(hash));
4190 if (mode_mask & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
4191 if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
4192 if (!(channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH)) {
4193 /* Set the founder authentication */
4194 tmp = silc_argument_get_arg_type(cmd->args, 7, &tmp_len);
4196 silc_server_command_send_status_reply(
4197 cmd, SILC_COMMAND_CMODE,
4198 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS, 0);
4202 /* Verify the payload before setting the mode */
4203 if (!silc_auth_verify_data(tmp, tmp_len, SILC_AUTH_PUBLIC_KEY,
4204 idata->public_key, 0, server->sha1hash,
4205 client->id, SILC_ID_CLIENT)) {
4206 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
4207 SILC_STATUS_ERR_AUTH_FAILED,
4212 /* Save the public key */
4213 channel->founder_key = silc_pkcs_public_key_copy(idata->public_key);
4214 if (!channel->founder_key) {
4215 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
4216 SILC_STATUS_ERR_AUTH_FAILED,
4221 founder_key = channel->founder_key;
4222 fkey = silc_pkcs_public_key_encode(founder_key, &fkey_len);
4224 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
4225 SILC_STATUS_ERR_AUTH_FAILED,
4232 if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
4233 if (channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
4234 if (channel->founder_key)
4235 silc_pkcs_public_key_free(channel->founder_key);
4236 channel->founder_key = NULL;
4241 /* Finally, set the mode */
4242 channel->mode = mode_mask;
4244 /* Send CMODE_CHANGE notify. */
4245 cidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
4246 silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
4247 SILC_NOTIFY_TYPE_CMODE_CHANGE, 6,
4248 cidp->data, cidp->len,
4250 cipher, cipher ? strlen(cipher) : 0,
4251 hmac, hmac ? strlen(hmac) : 0,
4252 passphrase, passphrase ?
4253 strlen(passphrase) : 0,
4256 /* Set CMODE notify type to network */
4257 if (!server->standalone)
4258 silc_server_send_notify_cmode(server, server->router->connection,
4259 server->server_type == SILC_ROUTER ?
4260 TRUE : FALSE, channel,
4261 mode_mask, client->id, SILC_ID_CLIENT,
4262 cipher, hmac, passphrase, founder_key);
4264 /* Send command reply to sender */
4265 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CMODE,
4266 SILC_STATUS_OK, 0, ident, 2,
4267 2, tmp_id, tmp_len2,
4269 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
4270 packet->data, packet->len, FALSE);
4272 silc_buffer_free(packet);
4273 silc_buffer_free(cidp);
4277 silc_free(channel_id);
4278 silc_server_command_free(cmd);
4281 /* Server side of CUMODE command. Changes client's mode on a channel. */
4283 SILC_SERVER_CMD_FUNC(cumode)
4285 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4286 SilcServer server = cmd->server;
4287 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4288 SilcIDListData idata = (SilcIDListData)client;
4289 SilcChannelID *channel_id;
4290 SilcClientID *client_id;
4291 SilcChannelEntry channel;
4292 SilcClientEntry target_client;
4293 SilcChannelClientEntry chl;
4294 SilcBuffer packet, idp;
4295 unsigned char *tmp_id, *tmp_ch_id, *tmp_mask;
4296 SilcUInt32 target_mask, sender_mask = 0, tmp_len, tmp_ch_len;
4298 SilcUInt16 ident = silc_command_get_ident(cmd->payload);
4299 SilcPublicKey founder_key = NULL;
4300 unsigned char *fkey = NULL;
4301 SilcUInt32 fkey_len = 0;
4303 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_CUMODE, cmd, 3, 4);
4305 /* Get Channel ID */
4306 tmp_ch_id = silc_argument_get_arg_type(cmd->args, 1, &tmp_ch_len);
4308 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4309 SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
4312 channel_id = silc_id_payload_parse_id(tmp_ch_id, tmp_ch_len, NULL);
4314 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4315 SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
4319 /* Get channel entry */
4320 channel = silc_idlist_find_channel_by_id(server->local_list,
4323 channel = silc_idlist_find_channel_by_id(server->global_list,
4326 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4327 SILC_STATUS_ERR_NO_SUCH_CHANNEL,
4333 /* Check whether sender is on the channel */
4334 if (!silc_server_client_on_channel(client, channel, &chl)) {
4335 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4336 SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
4339 sender_mask = chl->mode;
4341 /* Get the target client's channel mode mask */
4342 tmp_mask = silc_argument_get_arg_type(cmd->args, 2, NULL);
4344 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4345 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
4349 SILC_GET32_MSB(target_mask, tmp_mask);
4351 /* Get target Client ID */
4352 tmp_id = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
4354 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4355 SILC_STATUS_ERR_NO_CLIENT_ID, 0);
4358 client_id = silc_id_payload_parse_id(tmp_id, tmp_len, NULL);
4360 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4361 SILC_STATUS_ERR_NO_CLIENT_ID, 0);
4365 /* Get target client's entry */
4366 target_client = silc_idlist_find_client_by_id(server->local_list,
4367 client_id, TRUE, NULL);
4368 if (!target_client) {
4369 target_client = silc_idlist_find_client_by_id(server->global_list,
4370 client_id, TRUE, NULL);
4373 if (target_client != client &&
4374 !(sender_mask & SILC_CHANNEL_UMODE_CHANFO) &&
4375 !(sender_mask & SILC_CHANNEL_UMODE_CHANOP)) {
4376 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4377 SILC_STATUS_ERR_NO_CHANNEL_PRIV, 0);
4381 /* Check whether target client is on the channel */
4382 if (target_client != client) {
4383 if (!silc_server_client_on_channel(target_client, channel, &chl)) {
4384 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4385 SILC_STATUS_ERR_USER_NOT_ON_CHANNEL, 0);
4394 /* If the target client is founder, no one else can change their mode
4396 if (chl->mode & SILC_CHANNEL_UMODE_CHANFO && client != target_client) {
4397 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4398 SILC_STATUS_ERR_NO_CHANNEL_FOPRIV,
4403 if (target_mask & SILC_CHANNEL_UMODE_CHANFO) {
4404 if (target_client != client) {
4405 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4406 SILC_STATUS_ERR_NOT_YOU, 0);
4410 if (!(chl->mode & SILC_CHANNEL_UMODE_CHANFO)) {
4411 /* The client tries to claim the founder rights. */
4412 unsigned char *tmp_auth;
4413 SilcUInt32 tmp_auth_len;
4415 if (!(channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) ||
4416 !channel->founder_key || !idata->public_key ||
4417 !silc_pkcs_public_key_compare(channel->founder_key,
4418 idata->public_key)) {
4419 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4420 SILC_STATUS_ERR_AUTH_FAILED, 0);
4424 tmp_auth = silc_argument_get_arg_type(cmd->args, 4, &tmp_auth_len);
4426 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4427 SILC_STATUS_ERR_AUTH_FAILED, 0);
4431 /* Verify the authentication payload */
4432 if (!silc_auth_verify_data(tmp_auth, tmp_auth_len, SILC_AUTH_PUBLIC_KEY,
4433 channel->founder_key, 0, server->sha1hash,
4434 client->id, SILC_ID_CLIENT)) {
4435 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4436 SILC_STATUS_ERR_AUTH_FAILED, 0);
4440 sender_mask = chl->mode |= SILC_CHANNEL_UMODE_CHANFO;
4442 founder_key = channel->founder_key;
4443 fkey = silc_pkcs_public_key_encode(founder_key, &fkey_len);
4445 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4446 SILC_STATUS_ERR_AUTH_FAILED, 0);
4451 if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
4452 if (target_client == client) {
4453 /* Remove channel founder rights from itself */
4454 chl->mode &= ~SILC_CHANNEL_UMODE_CHANFO;
4457 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4458 SILC_STATUS_ERR_NOT_YOU, 0);
4464 if (target_mask & SILC_CHANNEL_UMODE_CHANOP) {
4465 /* Promote to operator */
4466 if (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP)) {
4467 if (!(sender_mask & SILC_CHANNEL_UMODE_CHANOP) &&
4468 !(sender_mask & SILC_CHANNEL_UMODE_CHANFO)) {
4469 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4470 SILC_STATUS_ERR_NO_CHANNEL_PRIV,
4475 chl->mode |= SILC_CHANNEL_UMODE_CHANOP;
4479 if (chl->mode & SILC_CHANNEL_UMODE_CHANOP) {
4480 if (!(sender_mask & SILC_CHANNEL_UMODE_CHANOP) &&
4481 !(sender_mask & SILC_CHANNEL_UMODE_CHANFO)) {
4482 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4483 SILC_STATUS_ERR_NO_CHANNEL_PRIV,
4488 /* Demote to normal user */
4489 chl->mode &= ~SILC_CHANNEL_UMODE_CHANOP;
4494 if (target_mask & SILC_CHANNEL_UMODE_BLOCK_MESSAGES) {
4495 if (target_client != client) {
4496 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4497 SILC_STATUS_ERR_NOT_YOU, 0);
4501 if (!(chl->mode & SILC_CHANNEL_UMODE_BLOCK_MESSAGES)) {
4502 chl->mode |= SILC_CHANNEL_UMODE_BLOCK_MESSAGES;
4506 if (chl->mode & SILC_CHANNEL_UMODE_BLOCK_MESSAGES) {
4507 if (target_client != client) {
4508 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4509 SILC_STATUS_ERR_NOT_YOU, 0);
4513 chl->mode &= ~SILC_CHANNEL_UMODE_BLOCK_MESSAGES;
4518 if (target_mask & SILC_CHANNEL_UMODE_BLOCK_MESSAGES_USERS) {
4519 if (target_client != client) {
4520 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4521 SILC_STATUS_ERR_NOT_YOU, 0);
4525 if (!(chl->mode & SILC_CHANNEL_UMODE_BLOCK_MESSAGES_USERS)) {
4526 chl->mode |= SILC_CHANNEL_UMODE_BLOCK_MESSAGES_USERS;
4530 if (chl->mode & SILC_CHANNEL_UMODE_BLOCK_MESSAGES_USERS) {
4531 if (target_client != client) {
4532 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4533 SILC_STATUS_ERR_NOT_YOU, 0);
4537 chl->mode &= ~SILC_CHANNEL_UMODE_BLOCK_MESSAGES_USERS;
4542 if (target_mask & SILC_CHANNEL_UMODE_BLOCK_MESSAGES_ROBOTS) {
4543 if (target_client != client) {
4544 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4545 SILC_STATUS_ERR_NOT_YOU, 0);
4549 if (!(chl->mode & SILC_CHANNEL_UMODE_BLOCK_MESSAGES_ROBOTS)) {
4550 chl->mode |= SILC_CHANNEL_UMODE_BLOCK_MESSAGES_ROBOTS;
4554 if (chl->mode & SILC_CHANNEL_UMODE_BLOCK_MESSAGES_ROBOTS) {
4555 if (target_client != client) {
4556 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4557 SILC_STATUS_ERR_NOT_YOU, 0);
4561 chl->mode &= ~SILC_CHANNEL_UMODE_BLOCK_MESSAGES_ROBOTS;
4566 idp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
4567 tmp_id = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
4569 /* Send notify to channel, notify only if mode was actually changed. */
4571 silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
4572 SILC_NOTIFY_TYPE_CUMODE_CHANGE, 4,
4573 idp->data, idp->len,
4578 /* Set CUMODE notify type to network */
4579 if (!server->standalone)
4580 silc_server_send_notify_cumode(server, server->router->connection,
4581 server->server_type == SILC_ROUTER ?
4582 TRUE : FALSE, channel,
4583 target_mask, client->id,
4585 target_client->id, founder_key);
4588 /* Send command reply to sender */
4589 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CUMODE,
4590 SILC_STATUS_OK, 0, ident, 3,
4592 3, tmp_ch_id, tmp_ch_len,
4593 4, tmp_id, tmp_len);
4594 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
4595 packet->data, packet->len, FALSE);
4597 silc_buffer_free(packet);
4598 silc_free(channel_id);
4599 silc_free(client_id);
4600 silc_buffer_free(idp);
4604 silc_server_command_free(cmd);
4607 /* Server side of KICK command. Kicks client out of channel. */
4609 SILC_SERVER_CMD_FUNC(kick)
4611 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4612 SilcServer server = cmd->server;
4613 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4614 SilcClientEntry target_client;
4615 SilcChannelID *channel_id;
4616 SilcClientID *client_id;
4617 SilcChannelEntry channel;
4618 SilcChannelClientEntry chl;
4620 SilcUInt32 tmp_len, target_idp_len;
4621 unsigned char *tmp, *comment, *target_idp;
4623 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_LEAVE, cmd, 1, 3);
4625 /* Get Channel ID */
4626 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
4628 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4629 SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
4632 channel_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
4634 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4635 SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
4639 /* Get channel entry */
4640 channel = silc_idlist_find_channel_by_id(server->local_list,
4643 channel = silc_idlist_find_channel_by_id(server->local_list,
4646 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4647 SILC_STATUS_ERR_NO_SUCH_CHANNEL,
4653 /* Check whether sender is on the channel */
4654 if (!silc_server_client_on_channel(client, channel, &chl)) {
4655 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4656 SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
4660 /* Check that the kicker is channel operator or channel founder */
4661 if (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP) &&
4662 !(chl->mode & SILC_CHANNEL_UMODE_CHANFO)) {
4663 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4664 SILC_STATUS_ERR_NO_CHANNEL_PRIV, 0);
4668 /* Get target Client ID */
4669 target_idp = silc_argument_get_arg_type(cmd->args, 2, &target_idp_len);
4671 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4672 SILC_STATUS_ERR_NO_CLIENT_ID, 0);
4675 client_id = silc_id_payload_parse_id(target_idp, target_idp_len, NULL);
4677 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4678 SILC_STATUS_ERR_NO_CLIENT_ID, 0);
4682 /* Get target client's entry */
4683 target_client = silc_idlist_find_client_by_id(server->local_list,
4684 client_id, TRUE, NULL);
4685 if (!target_client) {
4686 target_client = silc_idlist_find_client_by_id(server->global_list,
4687 client_id, TRUE, NULL);
4690 /* Check whether target client is on the channel */
4691 if (!silc_server_client_on_channel(target_client, channel, &chl)) {
4692 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4693 SILC_STATUS_ERR_USER_NOT_ON_CHANNEL,
4698 /* Check that the target client is not channel founder. Channel founder
4699 cannot be kicked from the channel. */
4700 if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
4701 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4702 SILC_STATUS_ERR_NO_CHANNEL_FOPRIV,
4709 comment = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
4713 /* Send command reply to sender */
4714 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4717 /* Send KICKED notify to local clients on the channel */
4718 idp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
4719 silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
4720 SILC_NOTIFY_TYPE_KICKED, 3,
4721 target_idp, target_idp_len,
4722 comment, comment ? strlen(comment) : 0,
4723 idp->data, idp->len);
4724 silc_buffer_free(idp);
4726 /* Remove the client from the channel. If the channel does not exist
4727 after removing the client then the client kicked itself off the channel
4728 and we don't have to send anything after that. */
4729 if (!silc_server_remove_from_one_channel(server, NULL, channel,
4730 target_client, FALSE))
4733 /* Send KICKED notify to primary route */
4734 if (!server->standalone)
4735 silc_server_send_notify_kicked(server, server->router->connection,
4736 server->server_type == SILC_ROUTER ?
4737 TRUE : FALSE, channel,
4738 target_client->id, client->id, comment);
4740 if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
4741 /* Re-generate channel key */
4742 if (!silc_server_create_channel_key(server, channel, 0))
4745 /* Send the channel key to the channel. The key of course is not sent
4746 to the client who was kicked off the channel. */
4747 silc_server_send_channel_key(server, target_client->connection, channel,
4748 server->server_type == SILC_ROUTER ?
4749 FALSE : !server->standalone);
4753 silc_server_command_free(cmd);
4756 /* Server side of OPER command. Client uses this comand to obtain server
4757 operator privileges to this server/router. */
4759 SILC_SERVER_CMD_FUNC(oper)
4761 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4762 SilcServer server = cmd->server;
4763 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4764 unsigned char *username, *auth;
4766 SilcServerConfigAdmin *admin;
4767 SilcIDListData idata = (SilcIDListData)client;
4768 bool result = FALSE;
4769 SilcPublicKey cached_key;
4771 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_OPER, cmd, 1, 2);
4773 if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
4776 /* Get the username */
4777 username = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
4779 silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
4780 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
4785 /* Get the admin configuration */
4786 admin = silc_server_config_find_admin(server, cmd->sock->ip,
4787 username, client->nickname);
4789 admin = silc_server_config_find_admin(server, cmd->sock->hostname,
4790 username, client->nickname);
4792 silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
4793 SILC_STATUS_ERR_AUTH_FAILED,
4799 /* Get the authentication payload */
4800 auth = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
4802 silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
4803 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
4808 /* Verify the authentication data. If both passphrase and public key
4809 is set then try both of them. */
4810 if (admin->passphrase)
4811 result = silc_auth_verify_data(auth, tmp_len, SILC_AUTH_PASSWORD,
4812 admin->passphrase, admin->passphrase_len,
4813 idata->hash, client->id, SILC_ID_CLIENT);
4814 if (!result && admin->publickeys) {
4815 cached_key = silc_server_get_public_key(server, admin->publickeys);
4818 result = silc_auth_verify_data(auth, tmp_len, SILC_AUTH_PUBLIC_KEY,
4819 cached_key, 0, idata->hash,
4820 client->id, SILC_ID_CLIENT);
4823 /* Authentication failed */
4824 silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
4825 SILC_STATUS_ERR_AUTH_FAILED,
4830 /* Client is now server operator */
4831 client->mode |= SILC_UMODE_SERVER_OPERATOR;
4833 /* Update statistics */
4834 if (client->connection)
4835 server->stat.my_server_ops++;
4836 if (server->server_type == SILC_ROUTER)
4837 server->stat.server_ops++;
4839 /* Send UMODE change to primary router */
4840 if (!server->standalone)
4841 silc_server_send_notify_umode(server, server->router->connection, TRUE,
4842 client->id, client->mode);
4844 /* Check if anyone is watching this nickname */
4845 if (server->server_type == SILC_ROUTER)
4846 silc_server_check_watcher_list(server, client, NULL,
4847 SILC_NOTIFY_TYPE_UMODE_CHANGE);
4849 /* Send reply to the sender */
4850 silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
4854 silc_server_command_free(cmd);
4857 SILC_TASK_CALLBACK(silc_server_command_detach_cb)
4859 QuitInternal q = (QuitInternal)context;
4860 SilcClientEntry client = (SilcClientEntry)q->sock->user_data;
4862 /* If there is pending outgoing data for the client then purge it
4863 to the network before closing connection. */
4864 silc_server_packet_queue_purge(q->server, q->sock);
4866 /* Close the connection on our side */
4867 client->router = NULL;
4868 client->connection = NULL;
4869 q->sock->user_data = NULL;
4870 silc_server_close_connection(q->server, q->sock);
4875 SILC_TASK_CALLBACK(silc_server_command_detach_timeout)
4877 QuitInternal q = (QuitInternal)context;
4878 SilcClientEntry client = (SilcClientEntry)q->sock;
4880 SILC_LOG_DEBUG(("Start"));
4882 if (client->mode & SILC_UMODE_DETACHED)
4883 silc_server_free_client_data(q->server, NULL, client, TRUE,
4888 /* Server side of DETACH command. Detached the client from the network
4889 by closing the connection but preserving the session. */
4891 SILC_SERVER_CMD_FUNC(detach)
4893 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4894 SilcServer server = cmd->server;
4895 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4898 if (server->config->detach_disabled) {
4899 silc_server_command_send_status_reply(cmd, SILC_COMMAND_DETACH,
4900 SILC_STATUS_ERR_UNKNOWN_COMMAND,
4905 if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
4908 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_DETACH, cmd, 0, 0);
4910 /* Send the user mode notify to notify that client is detached */
4911 client->mode |= SILC_UMODE_DETACHED;
4912 client->data.status &= ~SILC_IDLIST_STATUS_RESUMED;
4913 client->last_command = 0;
4914 client->fast_command = 0;
4915 if (!server->standalone)
4916 silc_server_send_notify_umode(server, server->router->connection,
4917 server->server_type == SILC_SERVER ?
4918 FALSE : TRUE, client->id, client->mode);
4920 /* Check if anyone is watching this nickname */
4921 if (server->server_type == SILC_ROUTER)
4922 silc_server_check_watcher_list(server, client, NULL,
4923 SILC_NOTIFY_TYPE_UMODE_CHANGE);
4925 q = silc_calloc(1, sizeof(*q));
4927 q->sock = cmd->sock;
4928 silc_schedule_task_add(server->schedule, 0, silc_server_command_detach_cb,
4929 q, 0, 200000, SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
4931 if (server->config->detach_timeout) {
4932 q = silc_calloc(1, sizeof(*q));
4934 q->sock = (void *)client;
4935 silc_schedule_task_add(server->schedule, 0,
4936 silc_server_command_detach_timeout,
4937 q, server->config->detach_timeout * 60,
4938 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
4941 /* Send reply to the sender */
4942 silc_server_command_send_status_reply(cmd, SILC_COMMAND_DETACH,
4946 silc_server_command_free(cmd);
4949 /* Server side of WATCH command. */
4951 SILC_SERVER_CMD_FUNC(watch)
4953 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4954 SilcServer server = cmd->server;
4955 char *add_nick, *del_nick;
4956 SilcUInt32 add_nick_len, del_nick_len, tmp_len;
4958 unsigned char hash[16], *tmp;
4959 SilcClientEntry client;
4960 SilcClientID *client_id = NULL;
4962 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_WATCH, cmd, 1, 3);
4964 if (server->server_type == SILC_SERVER && !server->standalone) {
4965 if (!cmd->pending) {
4966 /* Send the command to router */
4968 SilcUInt16 old_ident;
4970 old_ident = silc_command_get_ident(cmd->payload);
4971 silc_command_set_ident(cmd->payload, ++server->cmd_ident);
4972 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
4974 silc_server_packet_send(server, server->router->connection,
4975 SILC_PACKET_COMMAND, cmd->packet->flags,
4976 tmpbuf->data, tmpbuf->len, TRUE);
4978 /* Reprocess this packet after received reply from router */
4979 silc_server_command_pending(server, SILC_COMMAND_WATCH,
4980 silc_command_get_ident(cmd->payload),
4981 silc_server_command_watch,
4982 silc_server_command_dup(cmd));
4983 cmd->pending = TRUE;
4984 silc_command_set_ident(cmd->payload, old_ident);
4985 silc_buffer_free(tmpbuf);
4986 } else if (context2) {
4987 /* Received reply from router, just send same data to the client. */
4988 SilcServerCommandReplyContext reply = context2;
4990 silc_command_get_status(reply->payload, &status, NULL);
4991 silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH, status,
4998 /* We are router and keep the watch list for local cell */
5000 /* Get the client ID */
5001 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
5003 silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
5004 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
5008 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
5010 silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
5011 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
5016 /* Get the client entry which must be in local list */
5017 client = silc_idlist_find_client_by_id(server->local_list,
5018 client_id, TRUE, NULL);
5020 silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
5021 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
5027 add_nick = silc_argument_get_arg_type(cmd->args, 2, &add_nick_len);
5028 del_nick = silc_argument_get_arg_type(cmd->args, 3, &del_nick_len);
5029 if (!add_nick && !del_nick) {
5030 silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
5031 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
5036 if (add_nick && add_nick_len > 128)
5037 add_nick[128] = '\0';
5038 if (del_nick && del_nick_len > 128)
5039 del_nick[128] = '\0';
5041 memset(nick, 0, sizeof(nick));
5043 /* Add new nickname to be watched in our cell */
5045 if (silc_server_name_bad_chars(add_nick, strlen(add_nick)) == TRUE) {
5046 silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
5047 SILC_STATUS_ERR_BAD_NICKNAME, 0);
5051 /* Hash the nick, we have the hash saved, not nicks because we can
5052 do one to one mapping to the nick from Client ID hash this way. */
5053 silc_to_lower(add_nick, nick, sizeof(nick) - 1);
5054 silc_hash_make(server->md5hash, nick, strlen(nick), hash);
5056 /* Check whether this client is already watching this nickname */
5057 if (silc_hash_table_find_by_context(server->watcher_list, hash,
5059 /* Nickname is alredy being watched for this client */
5060 silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
5061 SILC_STATUS_ERR_NICKNAME_IN_USE,
5066 /* Get the nickname from the watcher list and use the same key in
5067 new entries as well. If key doesn't exist then create it. */
5068 if (!silc_hash_table_find(server->watcher_list, hash, (void **)&tmp, NULL))
5069 tmp = silc_memdup(hash, CLIENTID_HASH_LEN);
5071 /* Add the client to the watcher list with the specified nickname hash. */
5072 silc_hash_table_add(server->watcher_list, tmp, client);
5075 /* Delete nickname from watch list */
5077 if (silc_server_name_bad_chars(del_nick, strlen(del_nick)) == TRUE) {
5078 silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
5079 SILC_STATUS_ERR_BAD_NICKNAME, 0);
5083 /* Hash the nick, we have the hash saved, not nicks because we can
5084 do one to one mapping to the nick from Client ID hash this way. */
5085 silc_to_lower(del_nick, nick, sizeof(nick) - 1);
5086 silc_hash_make(server->md5hash, nick, strlen(nick), hash);
5088 /* Check that this client is watching for this nickname */
5089 if (!silc_hash_table_find_by_context(server->watcher_list, hash,
5090 client, (void **)&tmp)) {
5091 /* Nickname is alredy being watched for this client */
5092 silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
5093 SILC_STATUS_ERR_NO_SUCH_NICK, 0);
5097 /* Delete the nickname from the watcher list. */
5098 silc_hash_table_del_by_context(server->watcher_list, hash, client);
5100 /* Now check whether there still exists entries with this key, if not
5101 then free the key to not leak memory. */
5102 if (!silc_hash_table_find(server->watcher_list, hash, NULL, NULL))
5106 silc_server_command_send_status_reply(cmd, SILC_COMMAND_WATCH,
5110 silc_free(client_id);
5111 silc_server_command_free(cmd);
5114 /* Server side of SILCOPER command. Client uses this comand to obtain router
5115 operator privileges to this router. */
5117 SILC_SERVER_CMD_FUNC(silcoper)
5119 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
5120 SilcServer server = cmd->server;
5121 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
5122 unsigned char *username, *auth;
5124 SilcServerConfigAdmin *admin;
5125 SilcIDListData idata = (SilcIDListData)client;
5126 bool result = FALSE;
5127 SilcPublicKey cached_key;
5129 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_SILCOPER, cmd, 1, 2);
5131 if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
5134 if (server->server_type != SILC_ROUTER) {
5135 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
5136 SILC_STATUS_ERR_AUTH_FAILED, 0);
5140 /* Get the username */
5141 username = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
5143 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
5144 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
5149 /* Get the admin configuration */
5150 admin = silc_server_config_find_admin(server, cmd->sock->ip,
5151 username, client->nickname);
5153 admin = silc_server_config_find_admin(server, cmd->sock->hostname,
5154 username, client->nickname);
5156 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
5157 SILC_STATUS_ERR_AUTH_FAILED, 0);
5162 /* Get the authentication payload */
5163 auth = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
5165 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
5166 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
5171 /* Verify the authentication data. If both passphrase and public key
5172 is set then try both of them. */
5173 if (admin->passphrase)
5174 result = silc_auth_verify_data(auth, tmp_len, SILC_AUTH_PASSWORD,
5175 admin->passphrase, admin->passphrase_len,
5176 idata->hash, client->id, SILC_ID_CLIENT);
5177 if (!result && admin->publickeys) {
5178 cached_key = silc_server_get_public_key(server, admin->publickeys);
5181 result = silc_auth_verify_data(auth, tmp_len, SILC_AUTH_PUBLIC_KEY,
5182 cached_key, 0, idata->hash,
5183 client->id, SILC_ID_CLIENT);
5186 /* Authentication failed */
5187 silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
5188 SILC_STATUS_ERR_AUTH_FAILED, 0);
5192 /* Client is now router operator */
5193 client->mode |= SILC_UMODE_ROUTER_OPERATOR;
5195 /* Update statistics */
5196 if (client->connection)
5197 server->stat.my_router_ops++;
5198 if (server->server_type == SILC_ROUTER)
5199 server->stat.router_ops++;
5201 /* Send UMODE change to primary router */
5202 if (!server->standalone)
5203 silc_server_send_notify_umode(server, server->router->connection, TRUE,
5204 client->id, client->mode);
5206 /* Check if anyone is watching this nickname */
5207 if (server->server_type == SILC_ROUTER)
5208 silc_server_check_watcher_list(server, client, NULL,
5209 SILC_NOTIFY_TYPE_UMODE_CHANGE);
5211 /* Send reply to the sender */
5212 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
5216 silc_server_command_free(cmd);
5219 /* Server side of command BAN. This is used to manage the ban list of the
5220 channel. To add clients and remove clients from the ban list. */
5222 SILC_SERVER_CMD_FUNC(ban)
5224 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
5225 SilcServer server = cmd->server;
5226 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
5228 SilcChannelEntry channel;
5229 SilcChannelClientEntry chl;
5230 SilcChannelID *channel_id = NULL;
5231 unsigned char *id, *add, *del;
5232 SilcUInt32 id_len, tmp_len;
5233 SilcUInt16 ident = silc_command_get_ident(cmd->payload);
5235 if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
5238 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_BAN, cmd, 0, 3);
5240 /* Get Channel ID */
5241 id = silc_argument_get_arg_type(cmd->args, 1, &id_len);
5243 channel_id = silc_id_payload_parse_id(id, id_len, NULL);
5245 silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
5246 SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
5251 /* Get channel entry. The server must know about the channel since the
5252 client is expected to be on the channel. */
5253 channel = silc_idlist_find_channel_by_id(server->local_list,
5256 channel = silc_idlist_find_channel_by_id(server->global_list,
5259 silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
5260 SILC_STATUS_ERR_NO_SUCH_CHANNEL,
5266 /* Check whether this client is on the channel */
5267 if (!silc_server_client_on_channel(client, channel, &chl)) {
5268 silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
5269 SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
5273 /* The client must be at least channel operator. */
5274 if (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP)) {
5275 silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
5276 SILC_STATUS_ERR_NO_CHANNEL_PRIV, 0);
5280 /* Get the new ban and add it to the ban list */
5281 add = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
5283 if (!channel->ban_list)
5284 channel->ban_list = silc_calloc(tmp_len + 2, sizeof(*channel->ban_list));
5286 channel->ban_list = silc_realloc(channel->ban_list,
5287 sizeof(*channel->ban_list) *
5289 strlen(channel->ban_list) + 2));
5290 if (add[tmp_len - 1] == ',')
5291 add[tmp_len - 1] = '\0';
5293 strncat(channel->ban_list, add, tmp_len);
5294 strncat(channel->ban_list, ",", 1);
5297 /* Get the ban to be removed and remove it from the list */
5298 del = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
5299 if (del && channel->ban_list) {
5300 char *start, *end, *n;
5302 if (!strncmp(channel->ban_list, del, strlen(channel->ban_list) - 1)) {
5303 silc_free(channel->ban_list);
5304 channel->ban_list = NULL;
5306 start = strstr(channel->ban_list, del);
5307 if (start && strlen(start) >= tmp_len) {
5308 end = start + tmp_len;
5309 n = silc_calloc(strlen(channel->ban_list) - tmp_len, sizeof(*n));
5310 strncat(n, channel->ban_list, start - channel->ban_list);
5311 strncat(n, end + 1, ((channel->ban_list + strlen(channel->ban_list)) -
5313 silc_free(channel->ban_list);
5314 channel->ban_list = n;
5319 /* Send the BAN notify type to our primary router. */
5320 if (!server->standalone && (add || del))
5321 silc_server_send_notify_ban(server, server->router->connection,
5322 server->server_type == SILC_ROUTER ?
5323 TRUE : FALSE, channel, add, del);
5325 /* Send the reply back to the client */
5327 silc_command_reply_payload_encode_va(SILC_COMMAND_BAN,
5328 SILC_STATUS_OK, 0, ident, 2,
5330 3, channel->ban_list,
5332 strlen(channel->ban_list) -1 : 0);
5333 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
5334 packet->data, packet->len, FALSE);
5336 silc_buffer_free(packet);
5339 silc_free(channel_id);
5340 silc_server_command_free(cmd);
5343 /* Server side command of LEAVE. Removes client from a channel. */
5345 SILC_SERVER_CMD_FUNC(leave)
5347 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
5348 SilcServer server = cmd->server;
5349 SilcSocketConnection sock = cmd->sock;
5350 SilcClientEntry id_entry = (SilcClientEntry)cmd->sock->user_data;
5351 SilcChannelID *id = NULL;
5352 SilcChannelEntry channel;
5356 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_LEAVE, cmd, 1, 2);
5358 /* Get Channel ID */
5359 tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
5361 silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
5362 SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
5365 id = silc_id_payload_parse_id(tmp, len, NULL);
5367 silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
5368 SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
5372 /* Get channel entry */
5373 channel = silc_idlist_find_channel_by_id(server->local_list, id, NULL);
5375 channel = silc_idlist_find_channel_by_id(server->global_list, id, NULL);
5377 silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
5378 SILC_STATUS_ERR_NO_SUCH_CHANNEL,
5384 /* Check whether this client is on the channel */
5385 if (!silc_server_client_on_channel(id_entry, channel, NULL)) {
5386 silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
5387 SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
5391 /* Notify routers that they should remove this client from their list
5392 of clients on the channel. Send LEAVE notify type. */
5393 if (!server->standalone)
5394 silc_server_send_notify_leave(server, server->router->connection,
5395 server->server_type == SILC_ROUTER ?
5396 TRUE : FALSE, channel, id_entry->id);
5398 silc_server_command_send_status_data(cmd, SILC_COMMAND_LEAVE,
5399 SILC_STATUS_OK, 0, 2, tmp, len);
5401 /* Remove client from channel */
5402 if (!silc_server_remove_from_one_channel(server, sock, channel, id_entry,
5404 /* If the channel does not exist anymore we won't send anything */
5407 if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
5408 /* Re-generate channel key */
5409 if (!silc_server_create_channel_key(server, channel, 0))
5412 /* Send the channel key */
5413 silc_server_send_channel_key(server, NULL, channel,
5414 server->server_type == SILC_ROUTER ?
5415 FALSE : !server->standalone);
5420 silc_server_command_free(cmd);
5423 /* Server side of command USERS. Resolves clients and their USERS currently
5424 joined on the requested channel. The list of Client ID's and their modes
5425 on the channel is sent back. */
5427 SILC_SERVER_CMD_FUNC(users)
5429 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
5430 SilcServer server = cmd->server;
5431 SilcChannelEntry channel;
5432 SilcChannelID *id = NULL;
5433 SilcBuffer packet, idp;
5434 unsigned char *channel_id;
5435 SilcUInt32 channel_id_len;
5436 SilcBuffer client_id_list;
5437 SilcBuffer client_mode_list;
5438 unsigned char lc[4];
5439 SilcUInt32 list_count = 0;
5440 SilcUInt16 ident = silc_command_get_ident(cmd->payload);
5443 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_USERS, cmd, 1, 2);
5445 /* Get Channel ID */
5446 channel_id = silc_argument_get_arg_type(cmd->args, 1, &channel_id_len);
5448 /* Get channel name */
5449 channel_name = silc_argument_get_arg_type(cmd->args, 2, NULL);
5451 if (!channel_id && !channel_name) {
5452 silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
5453 SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
5458 id = silc_id_payload_parse_id(channel_id, channel_id_len, NULL);
5460 silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
5461 SILC_STATUS_ERR_NO_CHANNEL_ID, 0);
5466 /* If we are server and we don't know about this channel we will send
5467 the command to our router. If we know about the channel then we also
5468 have the list of users already. */
5470 channel = silc_idlist_find_channel_by_id(server->local_list, id, NULL);
5472 channel = silc_idlist_find_channel_by_name(server->local_list,
5473 channel_name, NULL);
5475 if (!channel || channel->disabled || !channel->users_resolved) {
5476 if (server->server_type != SILC_ROUTER && !server->standalone &&
5480 silc_command_set_ident(cmd->payload, ++server->cmd_ident);
5481 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
5483 /* Send USERS command */
5484 silc_server_packet_send(server, server->router->connection,
5485 SILC_PACKET_COMMAND, cmd->packet->flags,
5486 tmpbuf->data, tmpbuf->len, TRUE);
5488 /* Reprocess this packet after received reply */
5489 silc_server_command_pending(server, SILC_COMMAND_USERS,
5490 silc_command_get_ident(cmd->payload),
5491 silc_server_command_users,
5492 silc_server_command_dup(cmd));
5493 cmd->pending = TRUE;
5494 silc_command_set_ident(cmd->payload, ident);
5495 silc_buffer_free(tmpbuf);
5500 /* Check the global list as well. */
5502 channel = silc_idlist_find_channel_by_id(server->global_list, id, NULL);
5504 channel = silc_idlist_find_channel_by_name(server->global_list,
5505 channel_name, NULL);
5507 /* Channel really does not exist */
5508 silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
5509 SILC_STATUS_ERR_NO_SUCH_CHANNEL,
5515 /* If the channel is private or secret do not send anything, unless the
5516 user requesting this command is on the channel or is server */
5517 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
5518 if (channel->mode & (SILC_CHANNEL_MODE_PRIVATE | SILC_CHANNEL_MODE_SECRET)
5519 && !silc_server_client_on_channel(cmd->sock->user_data, channel,
5521 silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
5522 SILC_STATUS_ERR_NOT_ON_CHANNEL, 0);
5527 /* Get the users list */
5528 silc_server_get_users_on_channel(server, channel, &client_id_list,
5529 &client_mode_list, &list_count);
5532 SILC_PUT32_MSB(list_count, lc);
5535 idp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
5536 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_USERS,
5537 SILC_STATUS_OK, 0, ident, 4,
5538 2, idp->data, idp->len,
5540 4, client_id_list->data,
5541 client_id_list->len,
5542 5, client_mode_list->data,
5543 client_mode_list->len);
5544 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
5545 packet->data, packet->len, FALSE);
5547 silc_buffer_free(idp);
5548 silc_buffer_free(packet);
5549 silc_buffer_free(client_id_list);
5550 silc_buffer_free(client_mode_list);
5554 silc_server_command_free(cmd);
5557 /* Server side of command GETKEY. This fetches the client's public key
5558 from the server where to the client is connected. */
5560 SILC_SERVER_CMD_FUNC(getkey)
5562 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
5563 SilcServer server = cmd->server;
5565 SilcClientEntry client;
5566 SilcServerEntry server_entry;
5567 SilcClientID *client_id = NULL;
5568 SilcServerID *server_id = NULL;
5569 SilcIDPayload idp = NULL;
5570 SilcUInt16 ident = silc_command_get_ident(cmd->payload);
5571 unsigned char *tmp, *pkdata;
5572 SilcUInt32 tmp_len, pklen;
5573 SilcBuffer pk = NULL;
5575 SilcPublicKey public_key;
5577 SILC_LOG_DEBUG(("Start"));
5579 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
5581 silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
5582 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
5586 idp = silc_id_payload_parse(tmp, tmp_len);
5588 silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
5589 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
5594 id_type = silc_id_payload_get_type(idp);
5595 if (id_type == SILC_ID_CLIENT) {
5596 client_id = silc_id_payload_get_id(idp);
5598 /* If the client is not found from local list there is no chance it
5599 would be locally connected client so send the command further. */
5600 client = silc_idlist_find_client_by_id(server->local_list,
5601 client_id, TRUE, NULL);
5603 client = silc_idlist_find_client_by_id(server->global_list,
5604 client_id, TRUE, NULL);
5606 if ((!client && !cmd->pending && !server->standalone) ||
5607 (client && !client->connection && !cmd->pending &&
5608 !(client->mode & SILC_UMODE_DETACHED)) ||
5609 (client && !client->data.public_key && !cmd->pending)) {
5611 SilcUInt16 old_ident;
5612 SilcSocketConnection dest_sock;
5614 dest_sock = silc_server_get_client_route(server, NULL, 0,
5615 client_id, NULL, NULL);
5619 old_ident = silc_command_get_ident(cmd->payload);
5620 silc_command_set_ident(cmd->payload, ++server->cmd_ident);
5621 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
5623 silc_server_packet_send(server, dest_sock,
5624 SILC_PACKET_COMMAND, cmd->packet->flags,
5625 tmpbuf->data, tmpbuf->len, TRUE);
5627 /* Reprocess this packet after received reply from router */
5628 silc_server_command_pending(server, SILC_COMMAND_GETKEY,
5629 silc_command_get_ident(cmd->payload),
5630 silc_server_command_getkey,
5631 silc_server_command_dup(cmd));
5632 cmd->pending = TRUE;
5633 silc_command_set_ident(cmd->payload, old_ident);
5634 silc_buffer_free(tmpbuf);
5639 silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
5640 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
5645 /* The client is locally connected, just get the public key and
5646 send it back. If they key does not exist then do not send it,
5647 send just OK reply */
5648 public_key = client->data.public_key;
5653 tmp = silc_pkcs_public_key_encode(public_key, &tmp_len);
5654 pk = silc_buffer_alloc(4 + tmp_len);
5655 silc_buffer_pull_tail(pk, SILC_BUFFER_END(pk));
5656 silc_buffer_format(pk,
5657 SILC_STR_UI_SHORT(tmp_len),
5658 SILC_STR_UI_SHORT(SILC_SKE_PK_TYPE_SILC),
5659 SILC_STR_UI_XNSTRING(tmp, tmp_len),
5665 } else if (id_type == SILC_ID_SERVER) {
5666 server_id = silc_id_payload_get_id(idp);
5668 /* If the server is not found from local list there is no chance it
5669 would be locally connected server so send the command further. */
5670 server_entry = silc_idlist_find_server_by_id(server->local_list,
5671 server_id, TRUE, NULL);
5673 server_entry = silc_idlist_find_server_by_id(server->global_list,
5674 server_id, TRUE, NULL);
5676 if (server_entry != server->id_entry &&
5677 ((!server_entry && !cmd->pending && !server->standalone) ||
5678 (server_entry && !server_entry->connection && !cmd->pending &&
5679 !server->standalone) ||
5680 (server_entry && !server_entry->data.public_key && !cmd->pending &&
5681 !server->standalone))) {
5683 SilcUInt16 old_ident;
5685 old_ident = silc_command_get_ident(cmd->payload);
5686 silc_command_set_ident(cmd->payload, ++server->cmd_ident);
5687 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
5689 silc_server_packet_send(server, server->router->connection,
5690 SILC_PACKET_COMMAND, cmd->packet->flags,
5691 tmpbuf->data, tmpbuf->len, TRUE);
5693 /* Reprocess this packet after received reply from router */
5694 silc_server_command_pending(server, SILC_COMMAND_GETKEY,
5695 silc_command_get_ident(cmd->payload),
5696 silc_server_command_getkey,
5697 silc_server_command_dup(cmd));
5698 cmd->pending = TRUE;
5699 silc_command_set_ident(cmd->payload, old_ident);
5700 silc_buffer_free(tmpbuf);
5704 if (!server_entry) {
5705 silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
5706 SILC_STATUS_ERR_NO_SUCH_SERVER_ID,
5711 /* If they key does not exist then do not send it, send just OK reply */
5712 public_key = (!server_entry->data.public_key ?
5713 (server_entry == server->id_entry ? server->public_key :
5714 NULL) : server_entry->data.public_key);
5719 tmp = silc_pkcs_public_key_encode(public_key, &tmp_len);
5720 pk = silc_buffer_alloc(4 + tmp_len);
5721 silc_buffer_pull_tail(pk, SILC_BUFFER_END(pk));
5722 silc_buffer_format(pk,
5723 SILC_STR_UI_SHORT(tmp_len),
5724 SILC_STR_UI_SHORT(SILC_SKE_PK_TYPE_SILC),
5725 SILC_STR_UI_XNSTRING(tmp, tmp_len),
5735 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
5736 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_GETKEY,
5737 SILC_STATUS_OK, 0, ident,
5741 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
5742 packet->data, packet->len, FALSE);
5743 silc_buffer_free(packet);
5746 silc_buffer_free(pk);
5750 silc_id_payload_free(idp);
5751 silc_free(client_id);
5752 silc_free(server_id);
5753 silc_server_command_free(cmd);
5757 /* Private range commands, specific to this implementation */
5759 /* Server side command of CONNECT. Connects us to the specified remote
5760 server or router. */
5762 SILC_SERVER_CMD_FUNC(connect)
5764 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
5765 SilcServer server = cmd->server;
5766 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
5767 unsigned char *tmp, *host;
5769 SilcUInt32 port = SILC_PORT;
5771 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_PRIV_CONNECT, cmd, 1, 2);
5773 if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
5776 /* Check whether client has the permissions. */
5777 if (!(client->mode & SILC_UMODE_SERVER_OPERATOR) &&
5778 !(client->mode & SILC_UMODE_ROUTER_OPERATOR)) {
5779 silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CONNECT,
5780 SILC_STATUS_ERR_NO_SERVER_PRIV, 0);
5784 if (server->server_type == SILC_ROUTER &&
5785 client->mode & SILC_UMODE_SERVER_OPERATOR) {
5786 silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CONNECT,
5787 SILC_STATUS_ERR_NO_ROUTER_PRIV, 0);
5791 /* Get the remote server */
5792 host = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
5794 silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CONNECT,
5795 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
5801 tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
5803 SILC_GET32_MSB(port, tmp);
5805 /* Create the connection. It is done with timeout and is async. */
5806 silc_server_create_connection(server, host, port);
5808 /* Send reply to the sender */
5809 silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CONNECT,
5813 silc_server_command_free(cmd);
5816 /* Server side command of CLOSE. Closes connection to a specified server. */
5818 SILC_SERVER_CMD_FUNC(close)
5820 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
5821 SilcServer server = cmd->server;
5822 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
5823 SilcServerEntry server_entry;
5824 SilcSocketConnection sock;
5827 unsigned char *name;
5828 SilcUInt32 port = SILC_PORT;
5830 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_PRIV_CLOSE, cmd, 1, 2);
5832 if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
5835 /* Check whether client has the permissions. */
5836 if (!(client->mode & SILC_UMODE_SERVER_OPERATOR) &&
5837 !(client->mode & SILC_UMODE_ROUTER_OPERATOR)) {
5838 silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CLOSE,
5839 SILC_STATUS_ERR_NO_SERVER_PRIV,
5844 /* Get the remote server */
5845 name = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
5847 silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CLOSE,
5848 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS,
5854 tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
5856 SILC_GET32_MSB(port, tmp);
5858 server_entry = silc_idlist_find_server_by_conn(server->local_list,
5859 name, port, FALSE, NULL);
5861 server_entry = silc_idlist_find_server_by_conn(server->global_list,
5862 name, port, FALSE, NULL);
5863 if (!server_entry) {
5864 silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CLOSE,
5865 SILC_STATUS_ERR_NO_SERVER_ID, 0);
5869 /* Send reply to the sender */
5870 silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_CLOSE,
5873 /* Close the connection to the server */
5874 sock = (SilcSocketConnection)server_entry->connection;
5876 /* If we shutdown primary router connection manually then don't trigger
5877 any reconnect or backup router connections, by setting the router
5879 if (server->router == server_entry) {
5880 server->id_entry->router = NULL;
5881 server->router = NULL;
5882 server->standalone = TRUE;
5884 silc_server_free_sock_user_data(server, sock, NULL);
5885 silc_server_close_connection(server, sock);
5888 silc_server_command_free(cmd);
5891 /* Server side command of SHUTDOWN. Shutdowns the server and closes all
5892 active connections. */
5894 SILC_SERVER_CMD_FUNC(shutdown)
5896 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
5897 SilcServer server = cmd->server;
5898 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
5900 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_PRIV_SHUTDOWN, cmd, 0, 0);
5902 if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
5905 /* Check whether client has the permission. */
5906 if (!(client->mode & SILC_UMODE_SERVER_OPERATOR) &&
5907 !(client->mode & SILC_UMODE_ROUTER_OPERATOR)) {
5908 silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_SHUTDOWN,
5909 SILC_STATUS_ERR_NO_SERVER_PRIV,
5914 /* Send reply to the sender */
5915 silc_server_command_send_status_reply(cmd, SILC_COMMAND_PRIV_SHUTDOWN,
5918 /* Then, gracefully, or not, bring the server down. */
5919 silc_server_stop(server);
5923 silc_server_command_free(cmd);