5 Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
7 Copyright (C) 1997 - 2001 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,
32 SilcCommandStatus status);
34 silc_server_command_send_status_data(SilcServerCommandContext cmd,
36 SilcCommandStatus status,
41 silc_server_command_pending_error_check(SilcServerCommandContext cmd,
42 SilcServerCommandReplyContext cmdr,
44 SILC_TASK_CALLBACK(silc_server_command_process_timeout);
46 /* Server command list. */
47 SilcServerCommand silc_command_list[] =
49 SILC_SERVER_CMD(whois, WHOIS, SILC_CF_LAG | SILC_CF_REG),
50 SILC_SERVER_CMD(whowas, WHOWAS, SILC_CF_LAG | SILC_CF_REG),
51 SILC_SERVER_CMD(identify, IDENTIFY, SILC_CF_LAG | SILC_CF_REG),
52 SILC_SERVER_CMD(nick, NICK, SILC_CF_LAG_STRICT | SILC_CF_REG),
53 SILC_SERVER_CMD(list, LIST, SILC_CF_LAG_STRICT | SILC_CF_REG),
54 SILC_SERVER_CMD(topic, TOPIC, SILC_CF_LAG | SILC_CF_REG),
55 SILC_SERVER_CMD(invite, INVITE, SILC_CF_LAG | SILC_CF_REG),
56 SILC_SERVER_CMD(quit, QUIT, SILC_CF_LAG | SILC_CF_REG),
57 SILC_SERVER_CMD(kill, KILL, SILC_CF_LAG_STRICT | SILC_CF_REG | SILC_CF_OPER),
58 SILC_SERVER_CMD(info, INFO, SILC_CF_LAG | SILC_CF_REG),
59 SILC_SERVER_CMD(connect, CONNECT,
60 SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
61 SILC_SERVER_CMD(ping, PING, SILC_CF_LAG | SILC_CF_REG),
62 SILC_SERVER_CMD(oper, OPER, SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
63 SILC_SERVER_CMD(join, JOIN, SILC_CF_LAG_STRICT | SILC_CF_REG),
64 SILC_SERVER_CMD(motd, MOTD, SILC_CF_LAG | SILC_CF_REG),
65 SILC_SERVER_CMD(umode, UMODE, SILC_CF_LAG | SILC_CF_REG),
66 SILC_SERVER_CMD(cmode, CMODE, SILC_CF_LAG_STRICT | SILC_CF_REG),
67 SILC_SERVER_CMD(cumode, CUMODE, SILC_CF_LAG | SILC_CF_REG),
68 SILC_SERVER_CMD(kick, KICK, SILC_CF_LAG_STRICT | SILC_CF_REG),
69 SILC_SERVER_CMD(ban, BAN, SILC_CF_LAG_STRICT | SILC_CF_REG),
70 SILC_SERVER_CMD(close, CLOSE,
71 SILC_CF_LAG | SILC_CF_REG | SILC_CF_OPER),
72 SILC_SERVER_CMD(shutdown, SHUTDOWN, SILC_CF_LAG | SILC_CF_REG |
74 SILC_SERVER_CMD(silcoper, SILCOPER,
75 SILC_CF_LAG | SILC_CF_REG | SILC_CF_SILC_OPER),
76 SILC_SERVER_CMD(leave, LEAVE, SILC_CF_LAG_STRICT | SILC_CF_REG),
77 SILC_SERVER_CMD(users, USERS, SILC_CF_LAG | SILC_CF_REG),
78 SILC_SERVER_CMD(getkey, GETKEY, SILC_CF_LAG | SILC_CF_REG),
83 /* Performs several checks to the command. It first checks whether this
84 command was called as pending command callback. If it was then it checks
85 whether error occurred in the command reply where the pending command
88 It also checks that the requested command includes correct amount
90 #define SILC_SERVER_COMMAND_CHECK(command, context, min, max) \
94 SILC_LOG_DEBUG(("Start")); \
96 if (silc_server_command_pending_error_check(cmd, context2, command)) { \
97 silc_server_command_free(cmd); \
101 _argc = silc_argument_get_arg_num(cmd->args); \
103 silc_server_command_send_status_reply(cmd, command, \
104 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS); \
105 silc_server_command_free(cmd); \
109 silc_server_command_send_status_reply(cmd, command, \
110 SILC_STATUS_ERR_TOO_MANY_PARAMS); \
111 silc_server_command_free(cmd); \
116 /* Returns TRUE if the connection is registered. Unregistered connections
117 usually cannot send commands hence the check. */
119 static int silc_server_is_registered(SilcServer server,
120 SilcSocketConnection sock,
121 SilcServerCommandContext cmd,
124 SilcIDListData idata = (SilcIDListData)sock->user_data;
129 if (idata->status & SILC_IDLIST_STATUS_REGISTERED)
132 silc_server_command_send_status_reply(cmd, command,
133 SILC_STATUS_ERR_NOT_REGISTERED);
134 silc_server_command_free(cmd);
138 /* Internal context to hold data when executed command with timeout. */
140 SilcServerCommandContext ctx;
141 SilcServerCommand *cmd;
142 } *SilcServerCommandTimeout;
144 /* Timeout callback to process commands with timeout for client. Client's
145 commands are always executed with timeout. */
147 SILC_TASK_CALLBACK(silc_server_command_process_timeout)
149 SilcServerCommandTimeout timeout = (SilcServerCommandTimeout)context;
150 SilcClientEntry client = (SilcClientEntry)timeout->ctx->sock->user_data;
152 /* Update access time */
153 client->last_command = time(NULL);
155 if (!(timeout->cmd->flags & SILC_CF_REG))
156 timeout->cmd->cb(timeout->ctx, NULL);
157 else if (silc_server_is_registered(timeout->ctx->server,
161 timeout->cmd->cb(timeout->ctx, NULL);
166 /* Processes received command packet. */
168 void silc_server_command_process(SilcServer server,
169 SilcSocketConnection sock,
170 SilcPacketContext *packet)
172 SilcServerCommandContext ctx;
173 SilcServerCommand *cmd;
176 /* Allocate command context. This must be free'd by the
177 command routine receiving it. */
178 ctx = silc_server_command_alloc();
179 ctx->server = server;
180 ctx->sock = silc_socket_dup(sock);
181 ctx->packet = silc_packet_context_dup(packet); /* Save original packet */
183 /* Parse the command payload in the packet */
184 ctx->payload = silc_command_payload_parse(packet->buffer);
186 SILC_LOG_ERROR(("Bad command payload, packet dropped"));
187 silc_buffer_free(packet->buffer);
188 silc_packet_context_free(packet);
189 silc_socket_free(ctx->sock);
193 ctx->args = silc_command_get_args(ctx->payload);
195 /* Get the command */
196 command = silc_command_get(ctx->payload);
197 for (cmd = silc_command_list; cmd->cb; cmd++)
198 if (cmd->cmd == command)
202 silc_server_command_send_status_reply(ctx, command,
203 SILC_STATUS_ERR_UNKNOWN_COMMAND);
204 silc_server_command_free(ctx);
208 /* Execute client's commands always with timeout. Normally they are
209 executed with zero (0) timeout but if client is sending command more
210 frequently than once in 2 seconds, then the timeout may be 0 to 2
212 if (sock->type == SILC_SOCKET_TYPE_CLIENT) {
213 SilcClientEntry client = (SilcClientEntry)sock->user_data;
214 SilcServerCommandTimeout timeout = silc_calloc(1, sizeof(*timeout));
220 if (client->last_command && (time(NULL) - client->last_command) < 2) {
221 client->fast_command++;
224 client->fast_command = ((client->fast_command - 1) <= 0 ? 0 :
225 client->fast_command--);
229 if (!fast && ((cmd->flags & SILC_CF_LAG_STRICT) ||
230 (client->fast_command > 5 && cmd->flags & SILC_CF_LAG)))
231 silc_schedule_task_add(server->schedule, sock->sock,
232 silc_server_command_process_timeout,
234 2 - (time(NULL) - client->last_command), 0,
236 SILC_TASK_PRI_NORMAL);
238 silc_schedule_task_add(server->schedule, sock->sock,
239 silc_server_command_process_timeout,
243 SILC_TASK_PRI_NORMAL);
247 /* Execute for server */
249 if (!(cmd->flags & SILC_CF_REG))
251 else if (silc_server_is_registered(server, sock, ctx, cmd->cmd))
255 /* Allocate Command Context */
257 SilcServerCommandContext silc_server_command_alloc()
259 SilcServerCommandContext ctx = silc_calloc(1, sizeof(*ctx));
264 /* Free's the command context allocated before executing the command */
266 void silc_server_command_free(SilcServerCommandContext ctx)
269 SILC_LOG_DEBUG(("Command context %p refcnt %d->%d", ctx, ctx->users + 1,
271 if (ctx->users < 1) {
273 silc_command_payload_free(ctx->payload);
275 silc_packet_context_free(ctx->packet);
277 silc_socket_free(ctx->sock); /* Decrease reference counter */
282 /* Duplicate Command Context by adding reference counter. The context won't
283 be free'd untill it hits zero. */
285 SilcServerCommandContext
286 silc_server_command_dup(SilcServerCommandContext ctx)
289 SILC_LOG_DEBUG(("Command context %p refcnt %d->%d", ctx, ctx->users - 1,
294 /* Add new pending command to be executed when reply to a command has been
295 received. The `reply_cmd' is the command that will call the `callback'
296 with `context' when reply has been received. It can be SILC_COMMAND_NONE
297 to match any command with the `ident'. If `ident' is non-zero
298 the `callback' will be executed when received reply with command
299 identifier `ident'. */
301 void silc_server_command_pending(SilcServer server,
302 SilcCommand reply_cmd,
304 SilcServerPendingDestructor destructor,
305 SilcCommandCb callback,
308 SilcServerCommandPending *reply;
310 reply = silc_calloc(1, sizeof(*reply));
311 reply->reply_cmd = reply_cmd;
312 reply->ident = ident;
313 reply->context = context;
314 reply->callback = callback;
315 reply->destructor = destructor;
316 silc_dlist_add(server->pending_commands, reply);
319 /* Deletes pending command by reply command type. */
321 void silc_server_command_pending_del(SilcServer server,
322 SilcCommand reply_cmd,
325 SilcServerCommandPending *r;
327 silc_dlist_start(server->pending_commands);
328 while ((r = silc_dlist_get(server->pending_commands)) != SILC_LIST_END) {
329 if (r->reply_cmd == reply_cmd && r->ident == ident) {
330 silc_dlist_del(server->pending_commands, r);
336 /* Checks for pending commands and marks callbacks to be called from
337 the command reply function. Returns TRUE if there were pending command. */
339 SilcServerCommandPendingCallbacks
340 silc_server_command_pending_check(SilcServer server,
341 SilcServerCommandReplyContext ctx,
344 uint32 *callbacks_count)
346 SilcServerCommandPending *r;
347 SilcServerCommandPendingCallbacks callbacks = NULL;
350 silc_dlist_start(server->pending_commands);
351 while ((r = silc_dlist_get(server->pending_commands)) != SILC_LIST_END) {
352 if ((r->reply_cmd == command || r->reply_cmd == SILC_COMMAND_NONE)
353 && r->ident == ident) {
354 callbacks = silc_realloc(callbacks, sizeof(*callbacks) * (i + 1));
355 callbacks[i].context = r->context;
356 callbacks[i].callback = r->callback;
357 callbacks[i].destructor = r->destructor;
363 *callbacks_count = i;
367 /* Destructor function for pending callbacks. This is called when using
368 pending commands to free the context given for the pending command. */
370 static void silc_server_command_destructor(void *context)
372 silc_server_command_free((SilcServerCommandContext)context);
375 /* Sends simple status message as command reply packet */
378 silc_server_command_send_status_reply(SilcServerCommandContext cmd,
380 SilcCommandStatus status)
384 SILC_LOG_DEBUG(("Sending command status %d", status));
387 silc_command_reply_payload_encode_va(command, status,
388 silc_command_get_ident(cmd->payload),
390 silc_server_packet_send(cmd->server, cmd->sock,
391 SILC_PACKET_COMMAND_REPLY, 0,
392 buffer->data, buffer->len, FALSE);
393 silc_buffer_free(buffer);
396 /* Sends command status reply with one extra argument. The argument
397 type must be sent as argument. */
400 silc_server_command_send_status_data(SilcServerCommandContext cmd,
402 SilcCommandStatus status,
409 SILC_LOG_DEBUG(("Sending command status %d", status));
412 silc_command_reply_payload_encode_va(command, status,
413 silc_command_get_ident(cmd->payload),
414 1, arg_type, arg, arg_len);
415 silc_server_packet_send(cmd->server, cmd->sock,
416 SILC_PACKET_COMMAND_REPLY, 0,
417 buffer->data, buffer->len, FALSE);
418 silc_buffer_free(buffer);
421 /* This function can be called to check whether in the command reply
422 an error occurred. This function has no effect if this is called
423 when the command function was not called as pending command callback.
424 This returns TRUE if error had occurred. */
427 silc_server_command_pending_error_check(SilcServerCommandContext cmd,
428 SilcServerCommandReplyContext cmdr,
431 SilcCommandStatus status;
433 if (!cmd->pending || !cmdr)
436 SILC_GET16_MSB(status, silc_argument_get_arg_type(cmdr->args, 1, NULL));
437 if (status != SILC_STATUS_OK &&
438 status != SILC_STATUS_LIST_START &&
439 status != SILC_STATUS_LIST_ITEM &&
440 status != SILC_STATUS_LIST_END) {
441 /* Send the error message */
442 silc_server_command_send_status_reply(cmd, command, status);
449 /******************************************************************************
453 ******************************************************************************/
456 silc_server_command_whois_parse(SilcServerCommandContext cmd,
457 SilcClientID ***client_id,
458 uint32 *client_id_count,
466 uint32 argc = silc_argument_get_arg_num(cmd->args);
469 /* If client ID is in the command it must be used instead of nickname */
470 tmp = silc_argument_get_arg_type(cmd->args, 3, &len);
472 /* No ID, get the nickname@server string and parse it. */
473 tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
475 silc_parse_userfqdn(tmp, nickname, server_name);
477 silc_server_command_send_status_reply(cmd, command,
478 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
482 /* Command includes ID, we must use that. Also check whether the command
483 has more than one ID set - take them all. */
485 *client_id = silc_calloc(1, sizeof(**client_id));
486 (*client_id)[0] = silc_id_payload_parse_id(tmp, len);
487 if ((*client_id)[0] == NULL) {
488 silc_free(*client_id);
491 *client_id_count = 1;
493 /* Take all ID's from the command packet */
495 for (k = 1, i = 1; i < argc; i++) {
496 tmp = silc_argument_get_arg_type(cmd->args, i + 3, &len);
498 *client_id = silc_realloc(*client_id, sizeof(**client_id) *
499 (*client_id_count + 1));
500 (*client_id)[k] = silc_id_payload_parse_id(tmp, len);
501 if ((*client_id)[k] == NULL) {
502 /* Cleanup all and fail */
503 for (i = 0; i < *client_id_count; i++)
504 silc_free((*client_id)[i]);
505 silc_free(*client_id);
508 (*client_id_count)++;
515 /* Get the max count of reply messages allowed */
516 tmp = silc_argument_get_arg_type(cmd->args, 2, NULL);
525 /* Resolve context used by both WHOIS and IDENTIFY commands */
527 SilcServerEntry router;
529 unsigned char **res_argv;
530 uint32 *res_argv_lens;
531 uint32 *res_argv_types;
533 } *SilcServerResolveContext;
536 silc_server_command_whois_check(SilcServerCommandContext cmd,
537 SilcClientEntry *clients,
538 uint32 clients_count)
540 SilcServer server = cmd->server;
541 SilcClientEntry entry;
542 SilcServerResolveContext resolve = NULL, r = NULL;
543 uint32 resolve_count = 0;
547 for (i = 0; i < clients_count; i++) {
550 if (!entry || (entry->nickname && entry->username && entry->userinfo) ||
551 !(entry->data.status & SILC_IDLIST_STATUS_REGISTERED) ||
555 /* We need to resolve this entry since it is not complete */
557 if (!cmd->pending && entry->data.status & SILC_IDLIST_STATUS_RESOLVING) {
558 /* The entry is being resolved (and we are not the resolver) so attach
559 to the command reply and we're done with this one. */
560 silc_server_command_pending(server, SILC_COMMAND_NONE,
561 entry->resolve_cmd_ident,
562 silc_server_command_destructor,
563 silc_server_command_whois,
564 silc_server_command_dup(cmd));
567 if (entry->data.status & SILC_IDLIST_STATUS_RESOLVING) {
568 /* We've resolved this and it still is not ready. We'll return
569 and are that this will be handled again after it is resolved. */
570 for (i = 0; i < resolve_count; i++) {
571 for (k = 0; k < r->res_argc; k++)
572 silc_free(r->res_argv[k]);
573 silc_free(r->res_argv);
574 silc_free(r->res_argv_lens);
575 silc_free(r->res_argv_types);
580 /* We'll resolve this client */
584 for (k = 0; k < resolve_count; k++) {
585 if (resolve[k].router == entry->router) {
592 resolve = silc_realloc(resolve, sizeof(*resolve) *
593 (resolve_count + 1));
594 r = &resolve[resolve_count];
595 memset(r, 0, sizeof(*r));
596 r->router = entry->router;
597 r->ident = ++server->cmd_ident;
601 r->res_argv = silc_realloc(r->res_argv, sizeof(*r->res_argv) *
603 r->res_argv_lens = silc_realloc(r->res_argv_lens,
604 sizeof(*r->res_argv_lens) *
606 r->res_argv_types = silc_realloc(r->res_argv_types,
607 sizeof(*r->res_argv_types) *
609 idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
610 r->res_argv[r->res_argc] = silc_calloc(idp->len,
611 sizeof(**r->res_argv));
612 memcpy(r->res_argv[r->res_argc], idp->data, idp->len);
613 r->res_argv_lens[r->res_argc] = idp->len;
614 r->res_argv_types[r->res_argc] = r->res_argc + 3;
616 silc_buffer_free(idp);
618 entry->resolve_cmd_ident = r->ident;
619 entry->data.status |= SILC_IDLIST_STATUS_RESOLVING;
620 entry->data.status &= ~SILC_IDLIST_STATUS_RESOLVED;
625 /* Do the resolving */
626 for (i = 0; i < resolve_count; i++) {
631 /* Send WHOIS request. We send WHOIS since we're doing the requesting
632 now anyway so make it a good one. */
633 res_cmd = silc_command_payload_encode(SILC_COMMAND_WHOIS,
634 r->res_argc, r->res_argv,
638 silc_server_packet_send(server, r->router->connection,
639 SILC_PACKET_COMMAND, cmd->packet->flags,
640 res_cmd->data, res_cmd->len, FALSE);
642 /* Reprocess this packet after received reply */
643 silc_server_command_pending(server, SILC_COMMAND_WHOIS,
645 silc_server_command_destructor,
646 silc_server_command_whois,
647 silc_server_command_dup(cmd));
650 silc_buffer_free(res_cmd);
651 for (k = 0; k < r->res_argc; k++)
652 silc_free(r->res_argv[k]);
653 silc_free(r->res_argv);
654 silc_free(r->res_argv_lens);
655 silc_free(r->res_argv_types);
664 silc_server_command_whois_send_reply(SilcServerCommandContext cmd,
665 SilcClientEntry *clients,
666 uint32 clients_count,
669 SilcServer server = cmd->server;
672 SilcBuffer packet, idp, channels;
673 SilcClientEntry entry;
674 SilcCommandStatus status;
675 uint16 ident = silc_command_get_ident(cmd->payload);
676 char nh[256], uh[256];
677 unsigned char idle[4], mode[4];
678 SilcSocketConnection hsock;
681 for (i = 0; i < clients_count; i++)
682 if (clients[i]->data.status & SILC_IDLIST_STATUS_REGISTERED)
685 if (len == 0 && clients_count) {
687 if (entry->nickname) {
688 silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
689 SILC_STATUS_ERR_NO_SUCH_NICK,
691 strlen(entry->nickname));
693 SilcBuffer idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
694 silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
695 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
696 2, idp->data, idp->len);
697 silc_buffer_free(idp);
703 status = SILC_STATUS_OK;
705 status = SILC_STATUS_LIST_START;
707 for (i = 0, k = 0; i < clients_count; i++) {
710 if (!(entry->data.status & SILC_IDLIST_STATUS_REGISTERED)) {
711 if (clients_count == 1) {
712 if (entry->nickname) {
713 silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
714 SILC_STATUS_ERR_NO_SUCH_NICK,
716 strlen(entry->nickname));
718 SilcBuffer idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
719 silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
720 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
721 2, idp->data, idp->len);
722 silc_buffer_free(idp);
729 status = SILC_STATUS_LIST_ITEM;
731 if (clients_count > 1 && k == clients_count - 1)
732 status = SILC_STATUS_LIST_END;
734 if (count && k - 1 == count)
735 status = SILC_STATUS_LIST_END;
737 if (count && k - 1 > count)
740 /* Sanity check, however these should never fail. However, as
741 this sanity check has been added here they have failed. */
742 if (!entry->nickname || !entry->username || !entry->userinfo)
745 /* Send WHOIS reply */
746 idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
747 tmp = silc_argument_get_first_arg(cmd->args, NULL);
749 memset(uh, 0, sizeof(uh));
750 memset(nh, 0, sizeof(nh));
751 memset(idle, 0, sizeof(idle));
753 strncat(nh, entry->nickname, strlen(entry->nickname));
754 if (!strchr(entry->nickname, '@')) {
756 if (entry->servername) {
757 strncat(nh, entry->servername, strlen(entry->servername));
759 len = entry->router ? strlen(entry->router->server_name) :
760 strlen(server->server_name);
761 strncat(nh, entry->router ? entry->router->server_name :
762 server->server_name, len);
766 strncat(uh, entry->username, strlen(entry->username));
767 if (!strchr(entry->username, '@')) {
769 hsock = (SilcSocketConnection)entry->connection;
770 len = strlen(hsock->hostname);
771 strncat(uh, hsock->hostname, len);
774 channels = silc_server_get_client_channel_list(server, entry);
776 SILC_PUT32_MSB(entry->mode, mode);
778 if (entry->connection) {
779 SILC_PUT32_MSB((time(NULL) - entry->data.last_receive), idle);
783 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_WHOIS,
785 2, idp->data, idp->len,
789 strlen(entry->userinfo),
795 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_WHOIS,
797 2, idp->data, idp->len,
801 strlen(entry->userinfo),
805 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
806 0, packet->data, packet->len, FALSE);
808 silc_buffer_free(packet);
809 silc_buffer_free(idp);
811 silc_buffer_free(channels);
818 silc_server_command_whois_process(SilcServerCommandContext cmd)
820 SilcServer server = cmd->server;
821 char *nick = NULL, *server_name = NULL;
823 SilcClientEntry *clients = NULL, entry;
824 SilcClientID **client_id = NULL;
825 uint32 client_id_count = 0, clients_count = 0;
827 bool check_global = FALSE;
829 /* Protocol dictates that we must always send the received WHOIS request
830 to our router if we are normal server, so let's do it now unless we
831 are standalone. We will not send any replies to the client until we
832 have received reply from the router. */
833 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT &&
834 server->server_type == SILC_SERVER && !cmd->pending &&
835 !server->standalone) {
839 old_ident = silc_command_get_ident(cmd->payload);
840 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
841 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
843 /* Send WHOIS command to our router */
844 silc_server_packet_send(server, (SilcSocketConnection)
845 server->router->connection,
846 SILC_PACKET_COMMAND, cmd->packet->flags,
847 tmpbuf->data, tmpbuf->len, TRUE);
849 /* Reprocess this packet after received reply from router */
850 silc_server_command_pending(server, SILC_COMMAND_WHOIS,
851 silc_command_get_ident(cmd->payload),
852 silc_server_command_destructor,
853 silc_server_command_whois,
854 silc_server_command_dup(cmd));
857 silc_command_set_ident(cmd->payload, old_ident);
859 silc_buffer_free(tmpbuf);
864 /* We are ready to process the command request. Let's search for the
865 requested client and send reply to the requesting client. */
867 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT)
869 else if (server->server_type != SILC_SERVER)
872 /* Parse the whois request */
873 if (!silc_server_command_whois_parse(cmd, &client_id, &client_id_count,
874 &nick, &server_name, &count,
878 /* Get all clients matching that ID or nickname from local list */
879 if (client_id_count) {
880 /* Check all Client ID's received in the command packet */
881 for (i = 0; i < client_id_count; i++) {
882 entry = silc_idlist_find_client_by_id(server->local_list,
883 client_id[i], TRUE, NULL);
884 if (!entry && check_global)
885 entry = silc_idlist_find_client_by_id(server->global_list,
886 client_id[i], TRUE, NULL);
888 clients = silc_realloc(clients, sizeof(*clients) *
889 (clients_count + 1));
890 clients[clients_count++] = entry;
894 if (!silc_idlist_get_clients_by_hash(server->local_list,
895 nick, server->md5hash,
896 &clients, &clients_count))
897 silc_idlist_get_clients_by_nickname(server->local_list,
899 &clients, &clients_count);
901 if (!silc_idlist_get_clients_by_hash(server->global_list,
902 nick, server->md5hash,
903 &clients, &clients_count))
904 silc_idlist_get_clients_by_nickname(server->global_list,
906 &clients, &clients_count);
911 /* Such client(s) really does not exist in the SILC network. */
912 if (!client_id_count) {
913 silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
914 SILC_STATUS_ERR_NO_SUCH_NICK,
915 3, nick, strlen(nick));
917 SilcBuffer idp = silc_id_payload_encode(client_id[0], SILC_ID_CLIENT);
918 silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOIS,
919 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
920 2, idp->data, idp->len);
921 silc_buffer_free(idp);
926 /* Router always finds the client entry if it exists in the SILC network.
927 However, it might be incomplete entry and does not include all the
928 mandatory fields that WHOIS command reply requires. Check for these and
929 make query from the server who owns the client if some fields are
931 if (!silc_server_command_whois_check(cmd, clients, clients_count)) {
936 /* Send the command reply */
937 silc_server_command_whois_send_reply(cmd, clients, clients_count,
941 if (client_id_count) {
942 for (i = 0; i < client_id_count; i++)
943 silc_free(client_id[i]);
944 silc_free(client_id);
948 silc_free(server_name);
953 /* Server side of command WHOIS. Processes user's query and sends found
954 results as command replies back to the client. */
956 SILC_SERVER_CMD_FUNC(whois)
958 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
961 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_WHOIS, cmd, 1, 3328);
963 ret = silc_server_command_whois_process(cmd);
966 silc_server_command_free(cmd);
969 /******************************************************************************
973 ******************************************************************************/
976 silc_server_command_whowas_parse(SilcServerCommandContext cmd,
984 tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
986 silc_server_command_send_status_reply(cmd, SILC_COMMAND_WHOWAS,
987 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
991 /* Get the nickname@server string and parse it. */
992 silc_parse_userfqdn(tmp, nickname, server_name);
994 /* Get the max count of reply messages allowed */
995 tmp = silc_argument_get_arg_type(cmd->args, 2, NULL);
1005 silc_server_command_whowas_check(SilcServerCommandContext cmd,
1006 SilcClientEntry *clients,
1007 uint32 clients_count)
1009 SilcServer server = cmd->server;
1011 SilcClientEntry entry;
1013 for (i = 0; i < clients_count; i++) {
1016 if (!entry->nickname || !entry->username) {
1023 old_ident = silc_command_get_ident(cmd->payload);
1024 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
1025 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
1027 /* Send WHOWAS command */
1028 silc_server_packet_send(server, entry->router->connection,
1029 SILC_PACKET_COMMAND, cmd->packet->flags,
1030 tmpbuf->data, tmpbuf->len, TRUE);
1032 /* Reprocess this packet after received reply */
1033 silc_server_command_pending(server, SILC_COMMAND_WHOWAS,
1034 silc_command_get_ident(cmd->payload),
1035 silc_server_command_destructor,
1036 silc_server_command_whowas,
1037 silc_server_command_dup(cmd));
1038 cmd->pending = TRUE;
1040 silc_command_set_ident(cmd->payload, old_ident);
1042 silc_buffer_free(tmpbuf);
1051 silc_server_command_whowas_send_reply(SilcServerCommandContext cmd,
1052 SilcClientEntry *clients,
1053 uint32 clients_count)
1055 SilcServer server = cmd->server;
1057 int i, count = 0, len;
1058 SilcBuffer packet, idp;
1059 SilcClientEntry entry = NULL;
1060 SilcCommandStatus status;
1061 uint16 ident = silc_command_get_ident(cmd->payload);
1063 char nh[256], uh[256];
1065 status = SILC_STATUS_OK;
1066 if (clients_count > 1)
1067 status = SILC_STATUS_LIST_START;
1069 for (i = 0; i < clients_count; i++) {
1072 /* We will take only clients that are not valid anymore. They are the
1073 ones that are not registered anymore but still have a ID. They
1074 have disconnected us, and thus valid for WHOWAS. */
1075 if (entry->data.status & SILC_IDLIST_STATUS_REGISTERED)
1077 if (entry->id == NULL)
1080 if (count && i - 1 == count)
1085 if (clients_count > 2)
1086 status = SILC_STATUS_LIST_ITEM;
1088 if (clients_count > 1 && i == clients_count - 1)
1089 status = SILC_STATUS_LIST_END;
1091 /* Sanity check, however these should never fail. However, as
1092 this sanity check has been added here they have failed. */
1093 if (!entry->nickname || !entry->username)
1096 /* Send WHOWAS reply */
1097 idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
1098 tmp = silc_argument_get_first_arg(cmd->args, NULL);
1100 memset(uh, 0, sizeof(uh));
1101 memset(nh, 0, sizeof(nh));
1103 strncat(nh, entry->nickname, strlen(entry->nickname));
1104 if (!strchr(entry->nickname, '@')) {
1105 strncat(nh, "@", 1);
1106 if (entry->servername) {
1107 strncat(nh, entry->servername, strlen(entry->servername));
1109 len = entry->router ? strlen(entry->router->server_name) :
1110 strlen(server->server_name);
1111 strncat(nh, entry->router ? entry->router->server_name :
1112 server->server_name, len);
1116 strncat(uh, entry->username, strlen(entry->username));
1117 if (!strchr(entry->username, '@')) {
1118 strncat(uh, "@", 1);
1119 strcat(uh, "*private*");
1122 if (entry->userinfo)
1124 silc_command_reply_payload_encode_va(SILC_COMMAND_WHOWAS,
1126 2, idp->data, idp->len,
1130 strlen(entry->userinfo));
1133 silc_command_reply_payload_encode_va(SILC_COMMAND_WHOWAS,
1135 2, idp->data, idp->len,
1139 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
1140 0, packet->data, packet->len, FALSE);
1142 silc_buffer_free(packet);
1143 silc_buffer_free(idp);
1146 if (found == FALSE && entry)
1147 silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOWAS,
1148 SILC_STATUS_ERR_NO_SUCH_NICK,
1150 strlen(entry->nickname));
1154 silc_server_command_whowas_process(SilcServerCommandContext cmd)
1156 SilcServer server = cmd->server;
1157 char *nick = NULL, *server_name = NULL;
1159 SilcClientEntry *clients = NULL;
1160 uint32 clients_count = 0;
1162 bool check_global = FALSE;
1164 /* Protocol dictates that we must always send the received WHOWAS request
1165 to our router if we are normal server, so let's do it now unless we
1166 are standalone. We will not send any replies to the client until we
1167 have received reply from the router. */
1168 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT &&
1169 server->server_type == SILC_SERVER && !cmd->pending &&
1170 !server->standalone) {
1174 old_ident = silc_command_get_ident(cmd->payload);
1175 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
1176 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
1178 /* Send WHOWAS command to our router */
1179 silc_server_packet_send(server, (SilcSocketConnection)
1180 server->router->connection,
1181 SILC_PACKET_COMMAND, cmd->packet->flags,
1182 tmpbuf->data, tmpbuf->len, TRUE);
1184 /* Reprocess this packet after received reply from router */
1185 silc_server_command_pending(server, SILC_COMMAND_WHOWAS,
1186 silc_command_get_ident(cmd->payload),
1187 silc_server_command_destructor,
1188 silc_server_command_whowas,
1189 silc_server_command_dup(cmd));
1190 cmd->pending = TRUE;
1192 silc_command_set_ident(cmd->payload, old_ident);
1194 silc_buffer_free(tmpbuf);
1199 /* We are ready to process the command request. Let's search for the
1200 requested client and send reply to the requesting client. */
1202 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT)
1203 check_global = TRUE;
1204 else if (server->server_type != SILC_SERVER)
1205 check_global = TRUE;
1207 /* Parse the whowas request */
1208 if (!silc_server_command_whowas_parse(cmd, &nick, &server_name, &count))
1211 /* Get all clients matching that nickname from local list */
1212 if (!silc_idlist_get_clients_by_nickname(server->local_list,
1214 &clients, &clients_count))
1215 silc_idlist_get_clients_by_hash(server->local_list,
1216 nick, server->md5hash,
1217 &clients, &clients_count);
1219 /* Check global list as well */
1221 if (!silc_idlist_get_clients_by_nickname(server->global_list,
1223 &clients, &clients_count))
1224 silc_idlist_get_clients_by_hash(server->global_list,
1225 nick, server->md5hash,
1226 &clients, &clients_count);
1230 /* Such a client really does not exist in the SILC network. */
1231 silc_server_command_send_status_data(cmd, SILC_COMMAND_WHOWAS,
1232 SILC_STATUS_ERR_NO_SUCH_NICK,
1233 3, nick, strlen(nick));
1237 if (!silc_server_command_whowas_check(cmd, clients, clients_count)) {
1242 /* Send the command reply to the client */
1243 silc_server_command_whowas_send_reply(cmd, clients, clients_count);
1248 silc_free(server_name);
1253 /* Server side of command WHOWAS. */
1255 SILC_SERVER_CMD_FUNC(whowas)
1257 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
1260 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_WHOWAS, cmd, 1, 2);
1262 ret = silc_server_command_whowas_process(cmd);
1265 silc_server_command_free(cmd);
1268 /******************************************************************************
1272 ******************************************************************************/
1275 silc_server_command_identify_parse(SilcServerCommandContext cmd,
1276 SilcClientEntry **clients,
1277 uint32 *clients_count,
1278 SilcServerEntry **servers,
1279 uint32 *servers_count,
1280 SilcChannelEntry **channels,
1281 uint32 *channels_count,
1284 SilcServer server = cmd->server;
1287 uint32 argc = silc_argument_get_arg_num(cmd->args);
1289 bool check_global = FALSE;
1294 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT)
1295 check_global = TRUE;
1296 else if (server->server_type != SILC_SERVER)
1297 check_global = TRUE;
1299 /* If ID Payload is in the command it must be used instead of names */
1300 tmp = silc_argument_get_arg_type(cmd->args, 5, &len);
1302 /* No ID, get the names. */
1304 /* Try to get nickname@server. */
1305 tmp = silc_argument_get_arg_type(cmd->args, 1, NULL);
1308 char *nick_server = NULL;
1310 silc_parse_userfqdn(tmp, &nick, &nick_server);
1312 if (!silc_idlist_get_clients_by_hash(server->local_list,
1313 nick, server->md5hash,
1314 clients, clients_count))
1315 silc_idlist_get_clients_by_nickname(server->local_list,
1317 clients, clients_count);
1319 if (!silc_idlist_get_clients_by_hash(server->global_list,
1320 nick, server->md5hash,
1321 clients, clients_count))
1322 silc_idlist_get_clients_by_nickname(server->global_list,
1324 clients, clients_count);
1328 silc_free(nick_server);
1331 silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
1332 SILC_STATUS_ERR_NO_SUCH_NICK,
1333 3, tmp, strlen(tmp));
1338 /* Try to get server name */
1339 tmp = silc_argument_get_arg_type(cmd->args, 2, NULL);
1341 entry = silc_idlist_find_server_by_name(server->local_list,
1343 if (!entry && check_global)
1344 entry = silc_idlist_find_server_by_name(server->local_list,
1347 *servers = silc_realloc(*servers, sizeof(**servers) *
1348 (*servers_count + 1));
1349 (*servers)[(*servers_count)++] = entry;
1353 silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
1354 SILC_STATUS_ERR_NO_SUCH_SERVER,
1355 3, tmp, strlen(tmp));
1360 /* Try to get channel name */
1361 tmp = silc_argument_get_arg_type(cmd->args, 3, NULL);
1363 entry = silc_idlist_find_channel_by_name(server->local_list,
1365 if (!entry && check_global)
1366 entry = silc_idlist_find_channel_by_name(server->local_list,
1369 *channels = silc_realloc(*channels, sizeof(**channels) *
1370 (*channels_count + 1));
1371 (*channels)[(*channels_count)++] = entry;
1375 silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
1376 SILC_STATUS_ERR_NO_SUCH_CHANNEL,
1377 3, tmp, strlen(tmp));
1382 if (!(*clients) && !(*servers) && !(*channels)) {
1383 silc_server_command_send_status_reply(cmd, SILC_COMMAND_IDENTIFY,
1384 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
1388 /* Command includes ID, we must use that. Also check whether the command
1389 has more than one ID set - take them all. */
1391 /* Take all ID's from the command packet */
1392 for (i = 0; i < argc; i++) {
1395 tmp = silc_argument_get_arg_type(cmd->args, i + 5, &len);
1399 idp = silc_id_payload_parse_data(tmp, len);
1401 silc_free(*clients);
1402 silc_free(*servers);
1403 silc_free(*channels);
1404 silc_server_command_send_status_reply(cmd, SILC_COMMAND_IDENTIFY,
1405 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
1409 id = silc_id_payload_get_id(idp);
1411 switch (silc_id_payload_get_type(idp)) {
1413 case SILC_ID_CLIENT:
1414 entry = (void *)silc_idlist_find_client_by_id(server->local_list,
1416 if (!entry && check_global)
1417 entry = (void *)silc_idlist_find_client_by_id(server->global_list,
1420 *clients = silc_realloc(*clients, sizeof(**clients) *
1421 (*clients_count + 1));
1422 (*clients)[(*clients_count)++] = (SilcClientEntry)entry;
1424 silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
1425 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
1432 case SILC_ID_SERVER:
1433 entry = (void *)silc_idlist_find_server_by_id(server->local_list,
1435 if (!entry && check_global)
1436 entry = (void *)silc_idlist_find_server_by_id(server->global_list,
1439 *servers = silc_realloc(*servers, sizeof(**servers) *
1440 (*servers_count + 1));
1441 (*servers)[(*servers_count)++] = (SilcServerEntry)entry;
1443 silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
1444 SILC_STATUS_ERR_NO_SUCH_SERVER_ID,
1450 case SILC_ID_CHANNEL:
1451 entry = (void *)silc_idlist_find_channel_by_id(server->local_list,
1453 if (!entry && check_global)
1454 entry = (void *)silc_idlist_find_channel_by_id(server->global_list,
1457 *channels = silc_realloc(*channels, sizeof(**channels) *
1458 (*channels_count + 1));
1459 (*channels)[(*channels_count)++] = (SilcChannelEntry)entry;
1461 silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
1462 SILC_STATUS_ERR_NO_SUCH_CHANNEL_ID,
1474 silc_free(*clients);
1475 silc_free(*servers);
1476 silc_free(*channels);
1480 /* Get the max count of reply messages allowed */
1481 tmp = silc_argument_get_arg_type(cmd->args, 4, NULL);
1490 /* Checks that all mandatory fields in client entry are present. If not
1491 then send WHOIS request to the server who owns the client. We use
1492 WHOIS because we want to get as much information as possible at once. */
1495 silc_server_command_identify_check_client(SilcServerCommandContext cmd,
1496 SilcClientEntry *clients,
1497 uint32 clients_count)
1499 SilcServer server = cmd->server;
1500 SilcClientEntry entry;
1501 SilcServerResolveContext resolve = NULL, r = NULL;
1502 uint32 resolve_count = 0;
1506 for (i = 0; i < clients_count; i++) {
1509 if (!entry || entry->nickname ||
1510 !(entry->data.status & SILC_IDLIST_STATUS_REGISTERED) ||
1514 /* We need to resolve this entry since it is not complete */
1516 if (!cmd->pending && entry->data.status & SILC_IDLIST_STATUS_RESOLVING) {
1517 /* The entry is being resolved (and we are not the resolver) so attach
1518 to the command reply and we're done with this one. */
1519 silc_server_command_pending(server, SILC_COMMAND_NONE,
1520 entry->resolve_cmd_ident,
1521 silc_server_command_destructor,
1522 silc_server_command_identify,
1523 silc_server_command_dup(cmd));
1526 if (entry->data.status & SILC_IDLIST_STATUS_RESOLVING) {
1527 /* We've resolved this and it still is not ready. We'll return
1528 and are that this will be handled again after it is resolved. */
1529 for (i = 0; i < resolve_count; i++) {
1530 for (k = 0; k < r->res_argc; k++)
1531 silc_free(r->res_argv[k]);
1532 silc_free(r->res_argv);
1533 silc_free(r->res_argv_lens);
1534 silc_free(r->res_argv_types);
1539 /* We'll resolve this client */
1543 for (k = 0; k < resolve_count; k++) {
1544 if (resolve[k].router == entry->router) {
1551 resolve = silc_realloc(resolve, sizeof(*resolve) *
1552 (resolve_count + 1));
1553 r = &resolve[resolve_count];
1554 memset(r, 0, sizeof(*r));
1555 r->router = entry->router;
1556 r->ident = ++server->cmd_ident;
1560 r->res_argv = silc_realloc(r->res_argv, sizeof(*r->res_argv) *
1562 r->res_argv_lens = silc_realloc(r->res_argv_lens,
1563 sizeof(*r->res_argv_lens) *
1565 r->res_argv_types = silc_realloc(r->res_argv_types,
1566 sizeof(*r->res_argv_types) *
1568 idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
1569 r->res_argv[r->res_argc] = silc_calloc(idp->len,
1570 sizeof(**r->res_argv));
1571 memcpy(r->res_argv[r->res_argc], idp->data, idp->len);
1572 r->res_argv_lens[r->res_argc] = idp->len;
1573 r->res_argv_types[r->res_argc] = r->res_argc + 3;
1575 silc_buffer_free(idp);
1577 entry->resolve_cmd_ident = r->ident;
1578 entry->data.status |= SILC_IDLIST_STATUS_RESOLVING;
1579 entry->data.status &= ~SILC_IDLIST_STATUS_RESOLVED;
1584 /* Do the resolving */
1585 for (i = 0; i < resolve_count; i++) {
1590 /* Send WHOIS request. We send WHOIS since we're doing the requesting
1591 now anyway so make it a good one. */
1592 res_cmd = silc_command_payload_encode(SILC_COMMAND_WHOIS,
1593 r->res_argc, r->res_argv,
1597 silc_server_packet_send(server, r->router->connection,
1598 SILC_PACKET_COMMAND, cmd->packet->flags,
1599 res_cmd->data, res_cmd->len, FALSE);
1601 /* Reprocess this packet after received reply */
1602 silc_server_command_pending(server, SILC_COMMAND_WHOIS,
1604 silc_server_command_destructor,
1605 silc_server_command_identify,
1606 silc_server_command_dup(cmd));
1607 cmd->pending = TRUE;
1609 silc_buffer_free(res_cmd);
1610 for (k = 0; k < r->res_argc; k++)
1611 silc_free(r->res_argv[k]);
1612 silc_free(r->res_argv);
1613 silc_free(r->res_argv_lens);
1614 silc_free(r->res_argv_types);
1623 silc_server_command_identify_send_reply(SilcServerCommandContext cmd,
1624 SilcClientEntry *clients,
1625 uint32 clients_count,
1626 SilcServerEntry *servers,
1627 uint32 servers_count,
1628 SilcChannelEntry *channels,
1629 uint32 channels_count,
1632 SilcServer server = cmd->server;
1634 SilcBuffer packet, idp;
1635 SilcCommandStatus status;
1636 uint16 ident = silc_command_get_ident(cmd->payload);
1637 char nh[256], uh[256];
1638 SilcSocketConnection hsock;
1640 status = SILC_STATUS_OK;
1643 SilcClientEntry entry;
1646 for (i = 0; i < clients_count; i++)
1647 if (clients[i]->data.status & SILC_IDLIST_STATUS_REGISTERED)
1650 if (len == 0 && clients_count) {
1652 if (entry->nickname) {
1653 silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
1654 SILC_STATUS_ERR_NO_SUCH_NICK,
1656 strlen(entry->nickname));
1658 SilcBuffer idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
1659 silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
1660 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
1661 2, idp->data, idp->len);
1662 silc_buffer_free(idp);
1669 status = SILC_STATUS_LIST_START;
1671 for (i = 0, k = 0; i < clients_count; i++) {
1674 if (!(entry->data.status & SILC_IDLIST_STATUS_REGISTERED)) {
1675 if (clients_count == 1) {
1676 SilcBuffer idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
1677 silc_server_command_send_status_data(cmd, SILC_COMMAND_IDENTIFY,
1678 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID,
1679 2, idp->data, idp->len);
1680 silc_buffer_free(idp);
1686 status = SILC_STATUS_LIST_ITEM;
1687 if (clients_count > 1 && k == clients_count - 1
1688 && !servers_count && !channels_count)
1689 status = SILC_STATUS_LIST_END;
1690 if (count && k - 1 == count)
1691 status = SILC_STATUS_LIST_END;
1692 if (count && k - 1 > count)
1695 /* Send IDENTIFY reply */
1696 idp = silc_id_payload_encode(entry->id, SILC_ID_CLIENT);
1698 memset(uh, 0, sizeof(uh));
1699 memset(nh, 0, sizeof(nh));
1701 strncat(nh, entry->nickname, strlen(entry->nickname));
1702 if (!strchr(entry->nickname, '@')) {
1703 strncat(nh, "@", 1);
1704 if (entry->servername) {
1705 strncat(nh, entry->servername, strlen(entry->servername));
1707 len = entry->router ? strlen(entry->router->server_name) :
1708 strlen(server->server_name);
1709 strncat(nh, entry->router ? entry->router->server_name :
1710 server->server_name, len);
1714 if (!entry->username) {
1715 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
1717 2, idp->data, idp->len,
1720 strncat(uh, entry->username, strlen(entry->username));
1721 if (!strchr(entry->username, '@')) {
1722 strncat(uh, "@", 1);
1723 hsock = (SilcSocketConnection)entry->connection;
1724 len = strlen(hsock->hostname);
1725 strncat(uh, hsock->hostname, len);
1728 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
1730 2, idp->data, idp->len,
1735 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
1736 0, packet->data, packet->len, FALSE);
1738 silc_buffer_free(packet);
1739 silc_buffer_free(idp);
1745 status = (status == SILC_STATUS_LIST_ITEM ?
1746 SILC_STATUS_LIST_ITEM : SILC_STATUS_OK);
1749 SilcServerEntry entry;
1751 if (status == SILC_STATUS_OK && servers_count > 1)
1752 status = SILC_STATUS_LIST_START;
1754 for (i = 0, k = 0; i < servers_count; i++) {
1758 status = SILC_STATUS_LIST_ITEM;
1759 if (servers_count > 1 && k == servers_count - 1 && !channels_count)
1760 status = SILC_STATUS_LIST_END;
1761 if (count && k - 1 == count)
1762 status = SILC_STATUS_LIST_END;
1763 if (count && k - 1 > count)
1766 /* Send IDENTIFY reply */
1767 idp = silc_id_payload_encode(entry->id, SILC_ID_SERVER);
1768 if (entry->server_name) {
1770 silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
1772 2, idp->data, idp->len,
1773 3, entry->server_name,
1774 strlen(entry->server_name));
1776 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
1778 2, idp->data, idp->len);
1781 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
1782 0, packet->data, packet->len, FALSE);
1784 silc_buffer_free(packet);
1785 silc_buffer_free(idp);
1791 status = (status == SILC_STATUS_LIST_ITEM ?
1792 SILC_STATUS_LIST_ITEM : SILC_STATUS_OK);
1795 SilcChannelEntry entry;
1797 if (status == SILC_STATUS_OK && channels_count > 1)
1798 status = SILC_STATUS_LIST_START;
1800 for (i = 0, k = 0; i < channels_count; i++) {
1801 entry = channels[i];
1804 status = SILC_STATUS_LIST_ITEM;
1805 if (channels_count > 1 && k == channels_count - 1)
1806 status = SILC_STATUS_LIST_END;
1807 if (count && k - 1 == count)
1808 status = SILC_STATUS_LIST_END;
1809 if (count && k - 1 > count)
1812 /* Send IDENTIFY reply */
1813 idp = silc_id_payload_encode(entry->id, SILC_ID_CHANNEL);
1814 if (entry->channel_name) {
1816 silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
1818 2, idp->data, idp->len,
1819 3, entry->channel_name,
1820 strlen(entry->channel_name));
1822 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_IDENTIFY,
1824 2, idp->data, idp->len);
1827 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
1828 0, packet->data, packet->len, FALSE);
1830 silc_buffer_free(packet);
1831 silc_buffer_free(idp);
1839 silc_server_command_identify_process(SilcServerCommandContext cmd)
1841 SilcServer server = cmd->server;
1844 SilcClientEntry *clients = NULL;
1845 SilcServerEntry *servers = NULL;
1846 SilcChannelEntry *channels = NULL;
1847 uint32 clients_count = 0, servers_count = 0, channels_count = 0;
1849 /* Protocol dictates that we must always send the received IDENTIFY request
1850 to our router if we are normal server, so let's do it now unless we
1851 are standalone. We will not send any replies to the client until we
1852 have received reply from the router. */
1853 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT &&
1854 server->server_type == SILC_SERVER && !cmd->pending &&
1855 !server->standalone) {
1859 old_ident = silc_command_get_ident(cmd->payload);
1860 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
1861 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
1863 /* Send IDENTIFY command to our router */
1864 silc_server_packet_send(server, (SilcSocketConnection)
1865 server->router->connection,
1866 SILC_PACKET_COMMAND, cmd->packet->flags,
1867 tmpbuf->data, tmpbuf->len, TRUE);
1869 /* Reprocess this packet after received reply from router */
1870 silc_server_command_pending(server, SILC_COMMAND_IDENTIFY,
1871 silc_command_get_ident(cmd->payload),
1872 silc_server_command_destructor,
1873 silc_server_command_identify,
1874 silc_server_command_dup(cmd));
1875 cmd->pending = TRUE;
1877 silc_command_set_ident(cmd->payload, old_ident);
1879 silc_buffer_free(tmpbuf);
1884 /* We are ready to process the command request. Let's search for the
1885 requested client and send reply to the requesting client. */
1887 /* Parse the IDENTIFY request */
1888 if (!silc_server_command_identify_parse(cmd,
1889 &clients, &clients_count,
1890 &servers, &servers_count,
1891 &channels, &channels_count,
1895 /* Check that all mandatory fields are present and request those data
1896 from the server who owns the client if necessary. */
1897 if (clients && !silc_server_command_identify_check_client(cmd, clients,
1903 /* Send the command reply to the client */
1904 silc_server_command_identify_send_reply(cmd,
1905 clients, clients_count,
1906 servers, servers_count,
1907 channels, channels_count,
1913 silc_free(channels);
1918 SILC_SERVER_CMD_FUNC(identify)
1920 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
1923 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_IDENTIFY, cmd, 1, 3328);
1925 ret = silc_server_command_identify_process(cmd);
1928 silc_server_command_free(cmd);
1931 /* Checks string for bad characters and returns TRUE if they are found. */
1933 static int silc_server_command_bad_chars(char *nick)
1937 for (i = 0; i < strlen(nick); i++) {
1938 if (!isascii(nick[i]))
1940 if (nick[i] == ' ') return TRUE;
1941 if (nick[i] == '\\') return TRUE;
1942 if (nick[i] == '\"') return TRUE;
1943 if (nick[i] == '*') return TRUE;
1944 if (nick[i] == '?') return TRUE;
1945 if (nick[i] == ',') return TRUE;
1946 if (nick[i] == '@') return TRUE;
1952 /* Server side of command NICK. Sets nickname for user. Setting
1953 nickname causes generation of a new client ID for the client. The
1954 new client ID is sent to the client after changing the nickname. */
1956 SILC_SERVER_CMD_FUNC(nick)
1958 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
1959 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
1960 SilcServer server = cmd->server;
1961 SilcBuffer packet, nidp, oidp;
1962 SilcClientID *new_id;
1964 uint16 ident = silc_command_get_ident(cmd->payload);
1967 if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
1970 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_NICK, cmd, 1, 1);
1972 /* Check nickname */
1973 nick = silc_argument_get_arg_type(cmd->args, 1, NULL);
1974 if (silc_server_command_bad_chars(nick) == TRUE) {
1975 silc_server_command_send_status_reply(cmd, SILC_COMMAND_NICK,
1976 SILC_STATUS_ERR_BAD_NICKNAME);
1980 if (strlen(nick) > 128)
1983 /* Create new Client ID */
1984 while (!silc_id_create_client_id(cmd->server, cmd->server->id,
1986 cmd->server->md5hash, nick,
1989 snprintf(&nick[strlen(nick) - 1], 1, "%d", nickfail);
1992 /* Send notify about nickname change to our router. We send the new
1993 ID and ask to replace it with the old one. If we are router the
1994 packet is broadcasted. Send NICK_CHANGE notify. */
1995 if (!server->standalone)
1996 silc_server_send_notify_nick_change(server, server->router->connection,
1997 server->server_type == SILC_SERVER ?
1998 FALSE : TRUE, client->id,
2001 oidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
2003 /* Remove old cache entry */
2004 silc_idcache_del_by_context(server->local_list->clients, client);
2007 silc_free(client->id);
2009 /* Save the nickname as this client is our local client */
2010 silc_free(client->nickname);
2012 client->nickname = strdup(nick);
2013 client->id = new_id;
2015 /* Update client cache */
2016 silc_idcache_add(server->local_list->clients, client->nickname,
2017 client->id, (void *)client, FALSE);
2019 nidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
2021 /* Send NICK_CHANGE notify to the client's channels */
2022 silc_server_send_notify_on_channels(server, NULL, client,
2023 SILC_NOTIFY_TYPE_NICK_CHANGE, 2,
2024 oidp->data, oidp->len,
2025 nidp->data, nidp->len);
2027 /* Send the new Client ID as reply command back to client */
2028 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_NICK,
2029 SILC_STATUS_OK, ident, 1,
2030 2, nidp->data, nidp->len);
2031 silc_server_packet_send(cmd->server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
2032 0, packet->data, packet->len, FALSE);
2034 silc_buffer_free(packet);
2035 silc_buffer_free(nidp);
2036 silc_buffer_free(oidp);
2039 silc_server_command_free(cmd);
2042 /* Sends the LIST command reply */
2045 silc_server_command_list_send_reply(SilcServerCommandContext cmd,
2046 SilcChannelEntry *lch,
2048 SilcChannelEntry *gch,
2052 SilcBuffer packet, idp;
2053 SilcChannelEntry entry;
2054 SilcCommandStatus status;
2055 uint16 ident = silc_command_get_ident(cmd->payload);
2057 unsigned char usercount[4];
2060 for (i = 0; i < lch_count; i++)
2061 if (lch[i]->mode & SILC_CHANNEL_MODE_SECRET)
2063 for (i = 0; i < gch_count; i++)
2064 if (gch[i]->mode & SILC_CHANNEL_MODE_SECRET)
2067 status = SILC_STATUS_OK;
2068 if ((lch_count + gch_count) > 1)
2069 status = SILC_STATUS_LIST_START;
2072 for (i = 0; i < lch_count; i++) {
2079 status = SILC_STATUS_LIST_ITEM;
2081 if (i == lch_count - 1 && gch_count)
2083 if (lch_count > 1 && i == lch_count - 1)
2084 status = SILC_STATUS_LIST_END;
2086 idp = silc_id_payload_encode(entry->id, SILC_ID_CHANNEL);
2088 if (entry->mode & SILC_CHANNEL_MODE_PRIVATE) {
2089 topic = "*private*";
2090 memset(usercount, 0, sizeof(usercount));
2092 topic = entry->topic;
2093 users = silc_hash_table_count(entry->user_list);
2094 SILC_PUT32_MSB(users, usercount);
2097 /* Send the reply */
2100 silc_command_reply_payload_encode_va(SILC_COMMAND_LIST,
2102 2, idp->data, idp->len,
2103 3, entry->channel_name,
2104 strlen(entry->channel_name),
2105 4, topic, strlen(topic),
2109 silc_command_reply_payload_encode_va(SILC_COMMAND_LIST,
2111 2, idp->data, idp->len,
2112 3, entry->channel_name,
2113 strlen(entry->channel_name),
2115 silc_server_packet_send(cmd->server, cmd->sock,
2116 SILC_PACKET_COMMAND_REPLY, 0, packet->data,
2117 packet->len, FALSE);
2118 silc_buffer_free(packet);
2119 silc_buffer_free(idp);
2122 status = i ? SILC_STATUS_LIST_ITEM : SILC_STATUS_OK;
2125 for (i = 0; i < gch_count; i++) {
2132 status = SILC_STATUS_LIST_ITEM;
2134 if (gch_count > 1 && i == lch_count - 1)
2135 status = SILC_STATUS_LIST_END;
2137 idp = silc_id_payload_encode(entry->id, SILC_ID_CHANNEL);
2139 if (entry->mode & SILC_CHANNEL_MODE_PRIVATE) {
2140 topic = "*private*";
2141 memset(usercount, 0, sizeof(usercount));
2143 topic = entry->topic;
2144 users = silc_hash_table_count(entry->user_list);
2145 SILC_PUT32_MSB(users, usercount);
2148 /* Send the reply */
2151 silc_command_reply_payload_encode_va(SILC_COMMAND_LIST,
2153 2, idp->data, idp->len,
2154 3, entry->channel_name,
2155 strlen(entry->channel_name),
2156 4, topic, strlen(topic),
2160 silc_command_reply_payload_encode_va(SILC_COMMAND_LIST,
2162 2, idp->data, idp->len,
2163 3, entry->channel_name,
2164 strlen(entry->channel_name),
2166 silc_server_packet_send(cmd->server, cmd->sock,
2167 SILC_PACKET_COMMAND_REPLY, 0, packet->data,
2168 packet->len, FALSE);
2169 silc_buffer_free(packet);
2170 silc_buffer_free(idp);
2174 /* Server side of LIST command. This lists the channel of the requested
2175 server. Secret channels are not listed. */
2177 SILC_SERVER_CMD_FUNC(list)
2179 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
2180 SilcServer server = cmd->server;
2181 SilcChannelID *channel_id = NULL;
2184 SilcChannelEntry *lchannels = NULL, *gchannels = NULL;
2185 uint32 lch_count = 0, gch_count = 0;
2187 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_LIST, cmd, 0, 2);
2189 /* Get Channel ID */
2190 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
2192 channel_id = silc_id_payload_parse_id(tmp, tmp_len);
2194 silc_server_command_send_status_reply(cmd, SILC_COMMAND_LIST,
2195 SILC_STATUS_ERR_NO_CHANNEL_ID);
2200 /* Get the channels from local list */
2201 lchannels = silc_idlist_get_channels(server->local_list, channel_id,
2204 /* Get the channels from global list if we are router */
2205 if (server->server_type != SILC_SERVER)
2206 gchannels = silc_idlist_get_channels(server->global_list, channel_id,
2209 /* Send the reply */
2210 silc_server_command_list_send_reply(cmd, lchannels, lch_count,
2211 gchannels, gch_count);
2214 silc_server_command_free(cmd);
2217 /* Server side of TOPIC command. Sets topic for channel and/or returns
2218 current topic to client. */
2220 SILC_SERVER_CMD_FUNC(topic)
2222 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
2223 SilcServer server = cmd->server;
2224 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
2225 SilcChannelID *channel_id;
2226 SilcChannelEntry channel;
2227 SilcChannelClientEntry chl;
2228 SilcBuffer packet, idp;
2230 uint32 argc, tmp_len;
2231 uint16 ident = silc_command_get_ident(cmd->payload);
2233 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_TOPIC, cmd, 1, 2);
2235 argc = silc_argument_get_arg_num(cmd->args);
2237 /* Get Channel ID */
2238 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
2240 silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
2241 SILC_STATUS_ERR_NO_CHANNEL_ID);
2244 channel_id = silc_id_payload_parse_id(tmp, tmp_len);
2246 silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
2247 SILC_STATUS_ERR_NO_CHANNEL_ID);
2251 /* Check whether the channel exists */
2252 channel = silc_idlist_find_channel_by_id(server->local_list,
2255 channel = silc_idlist_find_channel_by_id(server->global_list,
2258 silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
2259 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
2266 tmp = silc_argument_get_arg_type(cmd->args, 2, NULL);
2268 silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
2269 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
2273 if (strlen(tmp) > 256) {
2274 silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
2275 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
2279 /* See whether the client is on channel and has rights to change topic */
2280 if (!silc_hash_table_find(channel->user_list, client, NULL,
2282 silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
2283 SILC_STATUS_ERR_NOT_ON_CHANNEL);
2287 if (chl->mode == SILC_CHANNEL_UMODE_NONE) {
2288 if (channel->mode & SILC_CHANNEL_MODE_TOPIC) {
2289 silc_server_command_send_status_reply(cmd, SILC_COMMAND_TOPIC,
2290 SILC_STATUS_ERR_NO_CHANNEL_PRIV);
2295 /* Set the topic for channel */
2296 silc_free(channel->topic);
2297 channel->topic = strdup(tmp);
2299 /* Send TOPIC_SET notify type to the network */
2300 if (!server->standalone)
2301 silc_server_send_notify_topic_set(server, server->router->connection,
2302 server->server_type == SILC_ROUTER ?
2303 TRUE : FALSE, channel, client->id,
2306 idp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
2308 /* Send notify about topic change to all clients on the channel */
2309 silc_server_send_notify_to_channel(server, NULL, channel, TRUE,
2310 SILC_NOTIFY_TYPE_TOPIC_SET, 2,
2311 idp->data, idp->len,
2312 channel->topic, strlen(channel->topic));
2313 silc_buffer_free(idp);
2316 /* Send the topic to client as reply packet */
2317 idp = silc_id_payload_encode(channel_id, SILC_ID_CHANNEL);
2319 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_TOPIC,
2320 SILC_STATUS_OK, ident, 2,
2321 2, idp->data, idp->len,
2323 strlen(channel->topic));
2325 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_TOPIC,
2326 SILC_STATUS_OK, ident, 1,
2327 2, idp->data, idp->len);
2328 silc_server_packet_send(cmd->server, cmd->sock, SILC_PACKET_COMMAND_REPLY,
2329 0, packet->data, packet->len, FALSE);
2331 silc_buffer_free(packet);
2332 silc_buffer_free(idp);
2333 silc_free(channel_id);
2336 silc_server_command_free(cmd);
2339 /* Server side of INVITE command. Invites some client to join some channel.
2340 This command is also used to manage the invite list of the channel. */
2342 SILC_SERVER_CMD_FUNC(invite)
2344 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
2345 SilcServer server = cmd->server;
2346 SilcSocketConnection sock = cmd->sock, dest_sock;
2347 SilcChannelClientEntry chl;
2348 SilcClientEntry sender, dest;
2349 SilcClientID *dest_id = NULL;
2350 SilcChannelEntry channel;
2351 SilcChannelID *channel_id = NULL;
2352 SilcIDListData idata;
2353 SilcBuffer idp, idp2, packet;
2354 unsigned char *tmp, *add, *del;
2356 uint16 ident = silc_command_get_ident(cmd->payload);
2358 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_INVITE, cmd, 1, 4);
2360 /* Get Channel ID */
2361 tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
2363 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
2364 SILC_STATUS_ERR_NO_CHANNEL_ID);
2367 channel_id = silc_id_payload_parse_id(tmp, len);
2369 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
2370 SILC_STATUS_ERR_NO_CHANNEL_ID);
2374 /* Get the channel entry */
2375 channel = silc_idlist_find_channel_by_id(server->local_list,
2378 channel = silc_idlist_find_channel_by_id(server->global_list,
2381 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
2382 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
2387 /* Check whether the sender of this command is on the channel. */
2388 sender = (SilcClientEntry)sock->user_data;
2389 if (!silc_server_client_on_channel(sender, channel)) {
2390 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
2391 SILC_STATUS_ERR_NOT_ON_CHANNEL);
2395 /* Check whether the channel is invite-only channel. If yes then the
2396 sender of this command must be at least channel operator. */
2397 if (channel->mode & SILC_CHANNEL_MODE_INVITE) {
2398 silc_hash_table_find(channel->user_list, sender, NULL, (void *)&chl);
2399 if (chl->mode == SILC_CHANNEL_UMODE_NONE) {
2400 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
2401 SILC_STATUS_ERR_NO_CHANNEL_PRIV);
2406 /* Get destination client ID */
2407 tmp = silc_argument_get_arg_type(cmd->args, 2, &len);
2411 dest_id = silc_id_payload_parse_id(tmp, len);
2413 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
2414 SILC_STATUS_ERR_NO_CLIENT_ID);
2418 /* Get the client entry */
2419 dest = silc_server_get_client_resolve(server, dest_id);
2421 if (server->server_type != SILC_SERVER) {
2422 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
2423 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID);
2427 /* The client info is being resolved. Reprocess this packet after
2428 receiving the reply to the query. */
2429 silc_server_command_pending(server, SILC_COMMAND_WHOIS,
2431 silc_server_command_destructor,
2432 silc_server_command_invite,
2433 silc_server_command_dup(cmd));
2434 cmd->pending = TRUE;
2435 silc_free(channel_id);
2440 /* Check whether the requested client is already on the channel. */
2441 if (silc_server_client_on_channel(dest, channel)) {
2442 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
2443 SILC_STATUS_ERR_USER_ON_CHANNEL);
2447 /* Get route to the client */
2448 dest_sock = silc_server_get_client_route(server, NULL, 0, dest_id, &idata);
2450 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INVITE,
2451 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID);
2455 memset(invite, 0, sizeof(invite));
2456 strncat(invite, dest->nickname, strlen(dest->nickname));
2457 strncat(invite, "!", 1);
2458 strncat(invite, dest->username, strlen(dest->username));
2459 if (!strchr(dest->username, '@')) {
2460 strncat(invite, "@", 1);
2461 strncat(invite, cmd->sock->hostname, strlen(cmd->sock->hostname));
2464 len = strlen(invite);
2465 if (!channel->invite_list)
2466 channel->invite_list = silc_calloc(len + 2,
2467 sizeof(*channel->invite_list));
2469 channel->invite_list = silc_realloc(channel->invite_list,
2470 sizeof(*channel->invite_list) *
2472 strlen(channel->invite_list) + 2));
2473 strncat(channel->invite_list, invite, len);
2474 strncat(channel->invite_list, ",", 1);
2476 /* Send notify to the client that is invited to the channel */
2477 idp = silc_id_payload_encode(channel_id, SILC_ID_CHANNEL);
2478 idp2 = silc_id_payload_encode(sender->id, SILC_ID_CLIENT);
2479 silc_server_send_notify_dest(server, dest_sock, FALSE, dest_id,
2481 SILC_NOTIFY_TYPE_INVITE, 3,
2482 idp->data, idp->len,
2483 channel->channel_name,
2484 strlen(channel->channel_name),
2485 idp2->data, idp2->len);
2486 silc_buffer_free(idp);
2487 silc_buffer_free(idp2);
2490 /* Add the client to the invite list of the channel */
2491 add = silc_argument_get_arg_type(cmd->args, 3, &len);
2493 if (!channel->invite_list)
2494 channel->invite_list = silc_calloc(len + 2,
2495 sizeof(*channel->invite_list));
2497 channel->invite_list = silc_realloc(channel->invite_list,
2498 sizeof(*channel->invite_list) *
2500 strlen(channel->invite_list) + 2));
2501 if (add[len - 1] == ',')
2502 add[len - 1] = '\0';
2504 strncat(channel->invite_list, add, len);
2505 strncat(channel->invite_list, ",", 1);
2508 /* Get the invite to be removed and remove it from the list */
2509 del = silc_argument_get_arg_type(cmd->args, 4, &len);
2510 if (del && channel->invite_list) {
2511 char *start, *end, *n;
2513 if (!strncmp(channel->invite_list, del,
2514 strlen(channel->invite_list) - 1)) {
2515 silc_free(channel->invite_list);
2516 channel->invite_list = NULL;
2518 start = strstr(channel->invite_list, del);
2519 if (start && strlen(start) >= len) {
2521 n = silc_calloc(strlen(channel->invite_list) - len, sizeof(*n));
2522 strncat(n, channel->invite_list, start - channel->invite_list);
2523 strncat(n, end + 1, ((channel->invite_list +
2524 strlen(channel->invite_list)) - end) - 1);
2525 silc_free(channel->invite_list);
2526 channel->invite_list = n;
2531 /* Send notify to the primary router */
2532 if (!server->standalone)
2533 silc_server_send_notify_invite(server, server->router->connection,
2534 server->server_type == SILC_ROUTER ?
2535 TRUE : FALSE, channel,
2536 sender->id, add, del);
2538 /* Send command reply */
2539 tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
2543 silc_command_reply_payload_encode_va(SILC_COMMAND_INVITE,
2544 SILC_STATUS_OK, ident, 2,
2546 3, channel->invite_list,
2547 channel->invite_list ?
2548 strlen(channel->invite_list) : 0);
2551 silc_command_reply_payload_encode_va(SILC_COMMAND_INVITE,
2552 SILC_STATUS_OK, ident, 1,
2554 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
2555 packet->data, packet->len, FALSE);
2556 silc_buffer_free(packet);
2560 silc_free(channel_id);
2561 silc_server_command_free(cmd);
2566 SilcSocketConnection sock;
2570 /* Quits connection to client. This gets called if client won't
2571 close the connection even when it has issued QUIT command. */
2573 SILC_TASK_CALLBACK(silc_server_command_quit_cb)
2575 QuitInternal q = (QuitInternal)context;
2577 /* Free all client specific data, such as client entry and entires
2578 on channels this client may be on. */
2579 silc_server_free_client_data(q->server, q->sock, q->sock->user_data,
2581 q->sock->user_data = NULL;
2583 /* Close the connection on our side */
2584 silc_server_close_connection(q->server, q->sock);
2586 silc_free(q->signoff);
2590 /* Quits SILC session. This is the normal way to disconnect client. */
2592 SILC_SERVER_CMD_FUNC(quit)
2594 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
2595 SilcServer server = cmd->server;
2596 SilcSocketConnection sock = cmd->sock;
2598 unsigned char *tmp = NULL;
2601 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_QUIT, cmd, 0, 1);
2603 if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
2606 /* Get destination ID */
2607 tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
2611 q = silc_calloc(1, sizeof(*q));
2614 q->signoff = tmp ? strdup(tmp) : NULL;
2616 /* We quit the connection with little timeout */
2617 silc_schedule_task_add(server->schedule, sock->sock,
2618 silc_server_command_quit_cb, (void *)q,
2619 0, 200000, SILC_TASK_TIMEOUT, SILC_TASK_PRI_LOW);
2622 silc_server_command_free(cmd);
2625 /* Server side of command KILL. This command is used by router operator
2626 to remove an client from the SILC Network temporarily. */
2628 SILC_SERVER_CMD_FUNC(kill)
2630 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
2631 SilcServer server = cmd->server;
2632 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
2633 SilcClientEntry remote_client;
2634 SilcClientID *client_id;
2635 unsigned char *tmp, *comment;
2636 uint32 tmp_len, tmp_len2;
2638 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_KILL, cmd, 1, 2);
2640 if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
2643 /* KILL command works only on router */
2644 if (server->server_type != SILC_ROUTER) {
2645 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
2646 SILC_STATUS_ERR_NO_ROUTER_PRIV);
2650 /* Check whether client has the permissions. */
2651 if (!(client->mode & SILC_UMODE_ROUTER_OPERATOR)) {
2652 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
2653 SILC_STATUS_ERR_NO_ROUTER_PRIV);
2657 /* Get the client ID */
2658 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
2660 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
2661 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
2664 client_id = silc_id_payload_parse_id(tmp, tmp_len);
2666 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
2667 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID);
2671 /* Get the client entry */
2672 remote_client = silc_idlist_find_client_by_id(server->local_list,
2673 client_id, TRUE, NULL);
2674 if (!remote_client) {
2675 remote_client = silc_idlist_find_client_by_id(server->global_list,
2676 client_id, TRUE, NULL);
2677 if (!remote_client) {
2678 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
2679 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID);
2685 comment = silc_argument_get_arg_type(cmd->args, 2, &tmp_len2);
2689 /* Send reply to the sender */
2690 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KILL,
2693 /* Send the KILL notify packets. First send it to the channel, then
2694 to our primary router and then directly to the client who is being
2695 killed right now. */
2697 /* Send KILLED notify to the channels. It is not sent to the client
2698 as it will be sent differently destined directly to the client and not
2700 silc_server_send_notify_on_channels(server, remote_client,
2701 remote_client, SILC_NOTIFY_TYPE_KILLED,
2704 comment, comment ? tmp_len2 : 0);
2706 /* Send KILLED notify to primary route */
2707 if (!server->standalone)
2708 silc_server_send_notify_killed(server, server->router->connection, TRUE,
2709 remote_client->id, comment);
2711 /* Send KILLED notify to the client directly */
2712 silc_server_send_notify_killed(server, remote_client->connection ?
2713 remote_client->connection :
2714 remote_client->router->connection, FALSE,
2715 remote_client->id, comment);
2717 /* Remove the client from all channels. This generates new keys to the
2718 channels as well. */
2719 silc_server_remove_from_channels(server, NULL, remote_client, FALSE,
2722 /* Remove the client entry, If it is locally connected then we will also
2723 disconnect the client here */
2724 if (remote_client->connection) {
2725 /* Remove locally conneted client */
2726 SilcSocketConnection sock = remote_client->connection;
2727 silc_server_free_client_data(server, sock, remote_client, FALSE, NULL);
2728 silc_server_close_connection(server, sock);
2730 /* Remove remote client */
2731 if (!silc_idlist_del_client(server->global_list, remote_client))
2732 silc_idlist_del_client(server->local_list, remote_client);
2736 silc_server_command_free(cmd);
2739 /* Server side of command INFO. This sends information about us to
2740 the client. If client requested specific server we will send the
2741 command to that server. */
2743 SILC_SERVER_CMD_FUNC(info)
2745 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
2746 SilcServer server = cmd->server;
2747 SilcBuffer packet, idp;
2750 char *dest_server, *server_info = NULL, *server_name;
2751 uint16 ident = silc_command_get_ident(cmd->payload);
2752 SilcServerEntry entry = NULL;
2753 SilcServerID *server_id = NULL;
2755 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_INFO, cmd, 0, 2);
2757 /* Get server name */
2758 dest_server = silc_argument_get_arg_type(cmd->args, 1, NULL);
2761 tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
2763 server_id = silc_id_payload_parse_id(tmp, tmp_len);
2765 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
2766 SILC_STATUS_ERR_NO_SERVER_ID);
2772 /* Check whether we have this server cached */
2773 entry = silc_idlist_find_server_by_id(server->local_list,
2774 server_id, TRUE, NULL);
2776 entry = silc_idlist_find_server_by_id(server->global_list,
2777 server_id, TRUE, NULL);
2778 if (!entry && server->server_type != SILC_SERVER) {
2779 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
2780 SILC_STATUS_ERR_NO_SUCH_SERVER);
2786 /* Some buggy servers has sent request to router about themselves. */
2787 if (server->server_type != SILC_SERVER && cmd->sock->user_data == entry)
2790 if ((!dest_server && !server_id && !entry) || (entry &&
2791 entry == server->id_entry) ||
2792 (dest_server && !cmd->pending &&
2793 !strncasecmp(dest_server, server->server_name, strlen(dest_server)))) {
2794 /* Send our reply */
2795 char info_string[256];
2797 memset(info_string, 0, sizeof(info_string));
2798 snprintf(info_string, sizeof(info_string),
2799 "location: %s server: %s admin: %s <%s>",
2800 server->config->admin_info->location,
2801 server->config->admin_info->server_type,
2802 server->config->admin_info->admin_name,
2803 server->config->admin_info->admin_email);
2805 server_info = info_string;
2806 entry = server->id_entry;
2808 /* Check whether we have this server cached */
2809 if (!entry && dest_server) {
2810 entry = silc_idlist_find_server_by_name(server->global_list,
2811 dest_server, TRUE, NULL);
2813 entry = silc_idlist_find_server_by_name(server->local_list,
2814 dest_server, TRUE, NULL);
2818 if (!cmd->pending &&
2819 server->server_type != SILC_SERVER && entry && !entry->server_info) {
2820 /* Send to the server */
2824 old_ident = silc_command_get_ident(cmd->payload);
2825 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
2826 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
2828 silc_server_packet_send(server, entry->connection,
2829 SILC_PACKET_COMMAND, cmd->packet->flags,
2830 tmpbuf->data, tmpbuf->len, TRUE);
2832 /* Reprocess this packet after received reply from router */
2833 silc_server_command_pending(server, SILC_COMMAND_INFO,
2834 silc_command_get_ident(cmd->payload),
2835 silc_server_command_destructor,
2836 silc_server_command_info,
2837 silc_server_command_dup(cmd));
2838 cmd->pending = TRUE;
2839 silc_command_set_ident(cmd->payload, old_ident);
2840 silc_buffer_free(tmpbuf);
2844 if (!entry && !cmd->pending && !server->standalone) {
2845 /* Send to the primary router */
2849 old_ident = silc_command_get_ident(cmd->payload);
2850 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
2851 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
2853 silc_server_packet_send(server, server->router->connection,
2854 SILC_PACKET_COMMAND, cmd->packet->flags,
2855 tmpbuf->data, tmpbuf->len, TRUE);
2857 /* Reprocess this packet after received reply from router */
2858 silc_server_command_pending(server, SILC_COMMAND_INFO,
2859 silc_command_get_ident(cmd->payload),
2860 silc_server_command_destructor,
2861 silc_server_command_info,
2862 silc_server_command_dup(cmd));
2863 cmd->pending = TRUE;
2864 silc_command_set_ident(cmd->payload, old_ident);
2865 silc_buffer_free(tmpbuf);
2870 silc_free(server_id);
2873 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
2874 SILC_STATUS_ERR_NO_SUCH_SERVER);
2878 idp = silc_id_payload_encode(entry->id, SILC_ID_SERVER);
2880 server_info = entry->server_info;
2881 server_name = entry->server_name;
2883 /* Send the reply */
2885 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_INFO,
2886 SILC_STATUS_OK, ident, 3,
2887 2, idp->data, idp->len,
2889 strlen(server_name),
2891 strlen(server_info));
2893 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_INFO,
2894 SILC_STATUS_OK, ident, 2,
2895 2, idp->data, idp->len,
2897 strlen(server_name));
2898 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
2899 packet->data, packet->len, FALSE);
2901 silc_buffer_free(packet);
2902 silc_buffer_free(idp);
2905 silc_server_command_free(cmd);
2908 /* Server side of command PING. This just replies to the ping. */
2910 SILC_SERVER_CMD_FUNC(ping)
2912 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
2913 SilcServer server = cmd->server;
2918 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_INFO, cmd, 1, 2);
2921 tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
2923 silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
2924 SILC_STATUS_ERR_NO_SERVER_ID);
2927 id = silc_id_str2id(tmp, len, SILC_ID_SERVER);
2931 if (SILC_ID_SERVER_COMPARE(id, server->id)) {
2932 /* Send our reply */
2933 silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
2936 silc_server_command_send_status_reply(cmd, SILC_COMMAND_PING,
2937 SILC_STATUS_ERR_NO_SUCH_SERVER);
2944 silc_server_command_free(cmd);
2947 /* Internal routine to join channel. The channel sent to this function
2948 has been either created or resolved from ID lists. This joins the sent
2949 client to the channel. */
2951 static void silc_server_command_join_channel(SilcServer server,
2952 SilcServerCommandContext cmd,
2953 SilcChannelEntry channel,
2954 SilcClientID *client_id,
2958 SilcSocketConnection sock = cmd->sock;
2960 uint32 tmp_len, user_count;
2961 unsigned char *passphrase = NULL, mode[4], tmp2[4], tmp3[4];
2962 SilcClientEntry client;
2963 SilcChannelClientEntry chl;
2964 SilcBuffer reply, chidp, clidp, keyp = NULL, user_list, mode_list;
2965 uint16 ident = silc_command_get_ident(cmd->payload);
2966 char check[512], check2[512];
2968 SILC_LOG_DEBUG(("Start"));
2973 /* Get the client entry */
2974 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
2975 client = (SilcClientEntry)sock->user_data;
2977 client = silc_server_get_client_resolve(server, client_id);
2982 /* The client info is being resolved. Reprocess this packet after
2983 receiving the reply to the query. */
2984 silc_server_command_pending(server, SILC_COMMAND_WHOIS,
2985 server->cmd_ident, NULL,
2986 silc_server_command_join,
2987 silc_server_command_dup(cmd));
2988 cmd->pending = TRUE;
2992 cmd->pending = FALSE;
2996 * Check channel modes
2999 memset(check, 0, sizeof(check));
3000 memset(check2, 0, sizeof(check2));
3001 strncat(check, client->nickname, strlen(client->nickname));
3002 strncat(check, "!", 1);
3003 strncat(check, client->username, strlen(client->username));
3004 if (!strchr(client->username, '@')) {
3005 strncat(check, "@", 1);
3006 strncat(check, cmd->sock->hostname, strlen(cmd->sock->hostname));
3009 strncat(check2, client->nickname, strlen(client->nickname));
3010 if (!strchr(client->nickname, '@')) {
3011 strncat(check2, "@", 1);
3012 strncat(check2, server->server_name, strlen(server->server_name));
3014 strncat(check2, "!", 1);
3015 strncat(check2, client->username, strlen(client->username));
3016 if (!strchr(client->username, '@')) {
3017 strncat(check2, "@", 1);
3018 strncat(check2, cmd->sock->hostname, strlen(cmd->sock->hostname));
3021 /* Check invite list if channel is invite-only channel */
3022 if (channel->mode & SILC_CHANNEL_MODE_INVITE) {
3023 if (!channel->invite_list ||
3024 (!silc_string_match(channel->invite_list, check) &&
3025 !silc_string_match(channel->invite_list, check2))) {
3026 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3027 SILC_STATUS_ERR_NOT_INVITED);
3032 /* Check ban list if it exists. If the client's nickname, server,
3033 username and/or hostname is in the ban list the access to the
3034 channel is denied. */
3035 if (channel->ban_list) {
3036 if (silc_string_match(channel->ban_list, check) ||
3037 silc_string_match(channel->ban_list, check2)) {
3038 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3039 SILC_STATUS_ERR_BANNED_FROM_CHANNEL);
3044 /* Get passphrase */
3045 tmp = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
3047 passphrase = silc_calloc(tmp_len, sizeof(*passphrase));
3048 memcpy(passphrase, tmp, tmp_len);
3051 /* Check the channel passphrase if set. */
3052 if (channel->mode & SILC_CHANNEL_MODE_PASSPHRASE) {
3053 if (!passphrase || memcmp(channel->passphrase, passphrase,
3054 strlen(channel->passphrase))) {
3055 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3056 SILC_STATUS_ERR_BAD_PASSWORD);
3061 /* Check user count limit if set. */
3062 if (channel->mode & SILC_CHANNEL_MODE_ULIMIT) {
3063 if (silc_hash_table_count(channel->user_list) + 1 >
3064 channel->user_limit) {
3065 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3066 SILC_STATUS_ERR_CHANNEL_IS_FULL);
3072 * Client is allowed to join to the channel. Make it happen.
3075 /* Check whether the client already is on the channel */
3076 if (silc_server_client_on_channel(client, channel)) {
3077 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3078 SILC_STATUS_ERR_USER_ON_CHANNEL);
3082 /* Generate new channel key as protocol dictates */
3083 if ((!created && silc_hash_table_count(channel->user_list) > 0) ||
3084 !channel->channel_key)
3085 if (!silc_server_create_channel_key(server, channel, 0))
3088 /* Send the channel key. This is broadcasted to the channel but is not
3089 sent to the client who is joining to the channel. */
3090 if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY))
3091 silc_server_send_channel_key(server, NULL, channel,
3092 server->server_type == SILC_ROUTER ?
3093 FALSE : !server->standalone);
3095 /* Join the client to the channel by adding it to channel's user list.
3096 Add also the channel to client entry's channels list for fast cross-
3098 chl = silc_calloc(1, sizeof(*chl));
3100 chl->client = client;
3101 chl->channel = channel;
3102 silc_hash_table_add(channel->user_list, client, chl);
3103 silc_hash_table_add(client->channels, channel, chl);
3105 /* Get users on the channel */
3106 silc_server_get_users_on_channel(server, channel, &user_list, &mode_list,
3109 /* Encode Client ID Payload of the original client who wants to join */
3110 clidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
3112 /* Encode command reply packet */
3113 chidp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
3114 SILC_PUT32_MSB(channel->mode, mode);
3115 SILC_PUT32_MSB(created, tmp2);
3116 SILC_PUT32_MSB(user_count, tmp3);
3118 if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
3119 tmp = silc_id_id2str(channel->id, SILC_ID_CHANNEL);
3120 keyp = silc_channel_key_payload_encode(SILC_ID_CHANNEL_LEN, tmp,
3121 strlen(channel->channel_key->
3123 channel->channel_key->cipher->name,
3124 channel->key_len / 8, channel->key);
3129 silc_command_reply_payload_encode_va(SILC_COMMAND_JOIN,
3130 SILC_STATUS_OK, ident, 13,
3131 2, channel->channel_name,
3132 strlen(channel->channel_name),
3133 3, chidp->data, chidp->len,
3134 4, clidp->data, clidp->len,
3137 7, keyp ? keyp->data : NULL,
3138 keyp ? keyp->len : 0,
3139 8, channel->ban_list,
3141 strlen(channel->ban_list) : 0,
3142 9, channel->invite_list,
3143 channel->invite_list ?
3144 strlen(channel->invite_list) : 0,
3147 strlen(channel->topic) : 0,
3148 11, channel->hmac->hmac->name,
3149 strlen(channel->hmac->hmac->name),
3151 13, user_list->data, user_list->len,
3152 14, mode_list->data,
3155 /* Send command reply */
3156 silc_server_packet_send(server, sock, SILC_PACKET_COMMAND_REPLY, 0,
3157 reply->data, reply->len, FALSE);
3159 /* Send JOIN notify to locally connected clients on the channel. If
3160 we are normal server then router will send or have sent JOIN notify
3161 already. However since we've added the client already to our channel
3162 we'll ignore it (in packet_receive.c) so we must send it here. If
3163 we are router then this will send it to local clients and local
3165 silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
3166 SILC_NOTIFY_TYPE_JOIN, 2,
3167 clidp->data, clidp->len,
3168 chidp->data, chidp->len);
3170 if (!cmd->pending) {
3171 /* Send JOIN notify packet to our primary router */
3172 if (!server->standalone)
3173 silc_server_send_notify_join(server, server->router->connection,
3174 server->server_type == SILC_ROUTER ?
3175 TRUE : FALSE, channel, client->id);
3178 /* Distribute the channel key to all backup routers. */
3179 silc_server_backup_send(server, NULL, SILC_PACKET_CHANNEL_KEY, 0,
3180 keyp->data, keyp->len, FALSE, TRUE);
3183 silc_buffer_free(reply);
3184 silc_buffer_free(clidp);
3185 silc_buffer_free(chidp);
3186 silc_buffer_free(keyp);
3187 silc_buffer_free(user_list);
3188 silc_buffer_free(mode_list);
3191 silc_free(passphrase);
3194 /* Server side of command JOIN. Joins client into requested channel. If
3195 the channel does not exist it will be created. */
3197 SILC_SERVER_CMD_FUNC(join)
3199 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
3200 SilcServer server = cmd->server;
3202 char *tmp, *channel_name = NULL, *cipher, *hmac;
3203 SilcChannelEntry channel;
3205 int created = FALSE;
3206 SilcClientID *client_id;
3208 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_JOIN, cmd, 1, 4);
3210 /* Get channel name */
3211 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
3213 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3214 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3219 if (strlen(channel_name) > 256)
3220 channel_name[255] = '\0';
3222 if (silc_server_command_bad_chars(channel_name) == TRUE) {
3223 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3224 SILC_STATUS_ERR_BAD_CHANNEL);
3228 /* Get Client ID of the client who is joining to the channel */
3229 tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
3231 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3232 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3235 client_id = silc_id_payload_parse_id(tmp, tmp_len);
3237 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3238 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3242 /* Get cipher and hmac name */
3243 cipher = silc_argument_get_arg_type(cmd->args, 4, NULL);
3244 hmac = silc_argument_get_arg_type(cmd->args, 5, NULL);
3246 /* See if the channel exists */
3247 channel = silc_idlist_find_channel_by_name(server->local_list,
3248 channel_name, NULL);
3250 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
3251 /* If this is coming from client the Client ID in the command packet must
3252 be same as the client's ID. */
3253 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
3254 SilcClientEntry entry = (SilcClientEntry)cmd->sock->user_data;
3255 if (!SILC_ID_CLIENT_COMPARE(entry->id, client_id)) {
3256 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3257 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3262 if (!channel || !channel->id) {
3263 /* Channel not found */
3265 /* If we are standalone server we don't have a router, we just create
3266 the channel by ourselves. */
3267 if (server->standalone) {
3268 channel = silc_server_create_new_channel(server, server->id, cipher,
3269 hmac, channel_name, TRUE);
3271 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3272 SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
3276 umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
3281 /* The channel does not exist on our server. If we are normal server
3282 we will send JOIN command to our router which will handle the
3283 joining procedure (either creates the channel if it doesn't exist
3284 or joins the client to it). */
3285 if (server->server_type != SILC_ROUTER) {
3289 /* If this is pending command callback then we've resolved
3290 it and it didn't work, return since we've notified the
3291 client already in the command reply callback. */
3295 old_ident = silc_command_get_ident(cmd->payload);
3296 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
3297 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
3299 /* Send JOIN command to our router */
3300 silc_server_packet_send(server, (SilcSocketConnection)
3301 server->router->connection,
3302 SILC_PACKET_COMMAND, cmd->packet->flags,
3303 tmpbuf->data, tmpbuf->len, TRUE);
3305 /* Reprocess this packet after received reply from router */
3306 silc_server_command_pending(server, SILC_COMMAND_JOIN,
3307 silc_command_get_ident(cmd->payload),
3308 silc_server_command_destructor,
3309 silc_server_command_join,
3310 silc_server_command_dup(cmd));
3311 cmd->pending = TRUE;
3315 /* We are router and the channel does not seem exist so we will check
3316 our global list as well for the channel. */
3317 channel = silc_idlist_find_channel_by_name(server->global_list,
3318 channel_name, NULL);
3320 /* Channel really does not exist, create it */
3321 channel = silc_server_create_new_channel(server, server->id, cipher,
3322 hmac, channel_name, TRUE);
3324 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3325 SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
3329 umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
3336 /* Channel not found */
3338 /* If the command came from router and we are normal server then
3339 something went wrong with the joining as the channel was not found.
3340 We can't do anything else but ignore this. */
3341 if (cmd->sock->type == SILC_SOCKET_TYPE_ROUTER ||
3342 server->server_type != SILC_ROUTER)
3345 /* We are router and the channel does not seem exist so we will check
3346 our global list as well for the channel. */
3347 channel = silc_idlist_find_channel_by_name(server->global_list,
3348 channel_name, NULL);
3350 /* Channel really does not exist, create it */
3351 channel = silc_server_create_new_channel(server, server->id, cipher,
3352 hmac, channel_name, TRUE);
3354 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3355 SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
3359 umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
3365 /* If the channel does not have global users and is also empty it means the
3366 channel was created globally (by our router) and the client will be the
3367 channel founder and operator. */
3368 if (!channel->global_users && !silc_hash_table_count(channel->user_list)) {
3369 umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
3370 created = TRUE; /* Created globally by our router */
3373 /* Join to the channel */
3374 silc_server_command_join_channel(server, cmd, channel, client_id,
3377 silc_free(client_id);
3380 silc_server_command_free(cmd);
3383 /* Server side of command MOTD. Sends server's current "message of the
3384 day" to the client. */
3386 SILC_SERVER_CMD_FUNC(motd)
3388 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
3389 SilcServer server = cmd->server;
3390 SilcBuffer packet, idp;
3391 char *motd, *dest_server;
3393 uint16 ident = silc_command_get_ident(cmd->payload);
3395 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_MOTD, cmd, 1, 1);
3397 /* Get server name */
3398 dest_server = silc_argument_get_arg_type(cmd->args, 1, NULL);
3400 silc_server_command_send_status_reply(cmd, SILC_COMMAND_MOTD,
3401 SILC_STATUS_ERR_NO_SUCH_SERVER);
3405 if (!strncasecmp(dest_server, server->server_name, strlen(dest_server))) {
3408 idp = silc_id_payload_encode(server->id_entry->id, SILC_ID_SERVER);
3410 if (server->config && server->config->motd &&
3411 server->config->motd->motd_file) {
3413 motd = silc_file_read(server->config->motd->motd_file, &motd_len);
3418 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
3419 SILC_STATUS_OK, ident, 2,
3425 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
3426 SILC_STATUS_OK, ident, 1,
3430 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
3431 packet->data, packet->len, FALSE);
3432 silc_buffer_free(packet);
3433 silc_buffer_free(idp);
3435 SilcServerEntry entry;
3437 /* Check whether we have this server cached */
3438 entry = silc_idlist_find_server_by_name(server->global_list,
3439 dest_server, TRUE, NULL);
3441 entry = silc_idlist_find_server_by_name(server->local_list,
3442 dest_server, TRUE, NULL);
3445 if (server->server_type != SILC_SERVER && !cmd->pending &&
3446 entry && !entry->motd) {
3447 /* Send to the server */
3451 old_ident = silc_command_get_ident(cmd->payload);
3452 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
3453 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
3455 silc_server_packet_send(server, entry->connection,
3456 SILC_PACKET_COMMAND, cmd->packet->flags,
3457 tmpbuf->data, tmpbuf->len, TRUE);
3459 /* Reprocess this packet after received reply from router */
3460 silc_server_command_pending(server, SILC_COMMAND_MOTD,
3461 silc_command_get_ident(cmd->payload),
3462 silc_server_command_destructor,
3463 silc_server_command_motd,
3464 silc_server_command_dup(cmd));
3465 cmd->pending = TRUE;
3466 silc_command_set_ident(cmd->payload, old_ident);
3467 silc_buffer_free(tmpbuf);
3471 if (!entry && !cmd->pending && !server->standalone) {
3472 /* Send to the primary router */
3476 old_ident = silc_command_get_ident(cmd->payload);
3477 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
3478 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
3480 silc_server_packet_send(server, server->router->connection,
3481 SILC_PACKET_COMMAND, cmd->packet->flags,
3482 tmpbuf->data, tmpbuf->len, TRUE);
3484 /* Reprocess this packet after received reply from router */
3485 silc_server_command_pending(server, SILC_COMMAND_MOTD,
3486 silc_command_get_ident(cmd->payload),
3487 silc_server_command_destructor,
3488 silc_server_command_motd,
3489 silc_server_command_dup(cmd));
3490 cmd->pending = TRUE;
3491 silc_command_set_ident(cmd->payload, old_ident);
3492 silc_buffer_free(tmpbuf);
3497 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
3498 SILC_STATUS_ERR_NO_SUCH_SERVER);
3502 idp = silc_id_payload_encode(server->id_entry->id, SILC_ID_SERVER);
3505 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
3506 SILC_STATUS_OK, ident, 2,
3509 strlen(entry->motd));
3511 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
3512 SILC_STATUS_OK, ident, 1,
3515 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
3516 packet->data, packet->len, FALSE);
3517 silc_buffer_free(packet);
3518 silc_buffer_free(idp);
3522 silc_server_command_free(cmd);
3525 /* Server side of command UMODE. Client can use this command to set/unset
3526 user mode. Client actually cannot set itself to be as server/router
3527 operator so this can be used only to unset the modes. */
3529 SILC_SERVER_CMD_FUNC(umode)
3531 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
3532 SilcServer server = cmd->server;
3533 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
3535 unsigned char *tmp_mask;
3537 uint16 ident = silc_command_get_ident(cmd->payload);
3539 if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
3542 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_UMODE, cmd, 2, 2);
3544 /* Get the client's mode mask */
3545 tmp_mask = silc_argument_get_arg_type(cmd->args, 2, NULL);
3547 silc_server_command_send_status_reply(cmd, SILC_COMMAND_UMODE,
3548 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3551 SILC_GET32_MSB(mask, tmp_mask);
3557 if (mask & SILC_UMODE_SERVER_OPERATOR) {
3558 if (!(client->mode & SILC_UMODE_SERVER_OPERATOR)) {
3559 /* Cannot operator mode */
3560 silc_server_command_send_status_reply(cmd, SILC_COMMAND_UMODE,
3561 SILC_STATUS_ERR_PERM_DENIED);
3565 if (client->mode & SILC_UMODE_SERVER_OPERATOR)
3566 /* Remove the server operator rights */
3567 client->mode &= ~SILC_UMODE_SERVER_OPERATOR;
3570 if (mask & SILC_UMODE_ROUTER_OPERATOR) {
3571 if (!(client->mode & SILC_UMODE_ROUTER_OPERATOR)) {
3572 /* Cannot operator mode */
3573 silc_server_command_send_status_reply(cmd, SILC_COMMAND_UMODE,
3574 SILC_STATUS_ERR_PERM_DENIED);
3578 if (client->mode & SILC_UMODE_ROUTER_OPERATOR)
3579 /* Remove the router operator rights */
3580 client->mode &= ~SILC_UMODE_ROUTER_OPERATOR;
3583 if (mask & SILC_UMODE_GONE) {
3584 client->mode |= SILC_UMODE_GONE;
3586 if (client->mode & SILC_UMODE_GONE)
3587 /* Remove the gone status */
3588 client->mode &= ~SILC_UMODE_GONE;
3591 /* Send UMODE change to primary router */
3592 if (!server->standalone)
3593 silc_server_send_notify_umode(server, server->router->connection, TRUE,
3594 client->id, client->mode);
3596 /* Send command reply to sender */
3597 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_UMODE,
3598 SILC_STATUS_OK, ident, 1,
3600 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
3601 packet->data, packet->len, FALSE);
3602 silc_buffer_free(packet);
3605 silc_server_command_free(cmd);
3608 /* Checks that client has rights to add or remove channel modes. If any
3609 of the checks fails FALSE is returned. */
3611 int silc_server_check_cmode_rights(SilcChannelEntry channel,
3612 SilcChannelClientEntry client,
3615 int is_op = client->mode & SILC_CHANNEL_UMODE_CHANOP;
3616 int is_fo = client->mode & SILC_CHANNEL_UMODE_CHANFO;
3618 /* Check whether has rights to change anything */
3619 if (!is_op && !is_fo)
3622 /* Check whether has rights to change everything */
3626 /* We know that client is channel operator, check that they are not
3627 changing anything that requires channel founder rights. Rest of the
3628 modes are available automatically for channel operator. */
3630 if (mode & SILC_CHANNEL_MODE_PRIVKEY) {
3631 if (is_op && !is_fo)
3634 if (channel->mode & SILC_CHANNEL_MODE_PRIVKEY) {
3635 if (is_op && !is_fo)
3640 if (mode & SILC_CHANNEL_MODE_PASSPHRASE) {
3641 if (is_op && !is_fo)
3644 if (channel->mode & SILC_CHANNEL_MODE_PASSPHRASE) {
3645 if (is_op && !is_fo)
3650 if (mode & SILC_CHANNEL_MODE_CIPHER) {
3651 if (is_op && !is_fo)
3654 if (channel->mode & SILC_CHANNEL_MODE_CIPHER) {
3655 if (is_op && !is_fo)
3660 if (mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
3661 if (is_op && !is_fo)
3664 if (channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
3665 if (is_op && !is_fo)
3673 /* Server side command of CMODE. Changes channel mode */
3675 SILC_SERVER_CMD_FUNC(cmode)
3677 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
3678 SilcServer server = cmd->server;
3679 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
3680 SilcIDListData idata = (SilcIDListData)client;
3681 SilcChannelID *channel_id;
3682 SilcChannelEntry channel;
3683 SilcChannelClientEntry chl;
3684 SilcBuffer packet, cidp;
3685 unsigned char *tmp, *tmp_id, *tmp_mask;
3686 char *cipher = NULL, *hmac = NULL;
3687 uint32 mode_mask, tmp_len, tmp_len2;
3688 uint16 ident = silc_command_get_ident(cmd->payload);
3690 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_CMODE, cmd, 2, 7);
3692 /* Get Channel ID */
3693 tmp_id = silc_argument_get_arg_type(cmd->args, 1, &tmp_len2);
3695 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3696 SILC_STATUS_ERR_NO_CHANNEL_ID);
3699 channel_id = silc_id_payload_parse_id(tmp_id, tmp_len2);
3701 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3702 SILC_STATUS_ERR_NO_CHANNEL_ID);
3706 /* Get the channel mode mask */
3707 tmp_mask = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
3709 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3710 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3713 SILC_GET32_MSB(mode_mask, tmp_mask);
3715 /* Get channel entry */
3716 channel = silc_idlist_find_channel_by_id(server->local_list,
3719 channel = silc_idlist_find_channel_by_id(server->global_list,
3722 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3723 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
3728 /* Check whether this client is on the channel */
3729 if (!silc_server_client_on_channel(client, channel)) {
3730 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3731 SILC_STATUS_ERR_NOT_ON_CHANNEL);
3735 /* Get entry to the channel user list */
3736 silc_hash_table_find(channel->user_list, client, NULL, (void *)&chl);
3738 /* Check that client has rights to change any requested channel modes */
3739 if (!silc_server_check_cmode_rights(channel, chl, mode_mask)) {
3740 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3741 SILC_STATUS_ERR_NO_CHANNEL_PRIV);
3746 * Check the modes. Modes that requires nothing special operation are
3750 if (mode_mask & SILC_CHANNEL_MODE_PRIVKEY) {
3751 /* Channel uses private keys to protect traffic. Client(s) has set the
3752 key locally they want to use, server does not know that key. */
3753 /* Nothing interesting to do here */
3755 if (channel->mode & SILC_CHANNEL_MODE_PRIVKEY) {
3756 /* The mode is removed and we need to generate and distribute
3757 new channel key. Clients are not using private channel keys
3758 anymore after this. */
3760 /* Re-generate channel key */
3761 if (!silc_server_create_channel_key(server, channel, 0))
3764 /* Send the channel key. This sends it to our local clients and if
3765 we are normal server to our router as well. */
3766 silc_server_send_channel_key(server, NULL, channel,
3767 server->server_type == SILC_ROUTER ?
3768 FALSE : !server->standalone);
3770 cipher = channel->channel_key->cipher->name;
3771 hmac = channel->hmac->hmac->name;
3775 if (mode_mask & SILC_CHANNEL_MODE_ULIMIT) {
3776 /* User limit is set on channel */
3779 /* Get user limit */
3780 tmp = silc_argument_get_arg_type(cmd->args, 3, NULL);
3782 if (!(channel->mode & SILC_CHANNEL_MODE_ULIMIT)) {
3783 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3784 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3788 SILC_GET32_MSB(user_limit, tmp);
3789 channel->user_limit = user_limit;
3792 if (channel->mode & SILC_CHANNEL_MODE_ULIMIT)
3793 /* User limit mode is unset. Remove user limit */
3794 channel->user_limit = 0;
3797 if (mode_mask & SILC_CHANNEL_MODE_PASSPHRASE) {
3798 if (!(channel->mode & SILC_CHANNEL_MODE_PASSPHRASE)) {
3799 /* Passphrase has been set to channel */
3801 /* Get the passphrase */
3802 tmp = silc_argument_get_arg_type(cmd->args, 4, NULL);
3804 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3805 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3809 /* Save the passphrase */
3810 channel->passphrase = strdup(tmp);
3813 if (channel->mode & SILC_CHANNEL_MODE_PASSPHRASE) {
3814 /* Passphrase mode is unset. remove the passphrase */
3815 if (channel->passphrase) {
3816 silc_free(channel->passphrase);
3817 channel->passphrase = NULL;
3822 if (mode_mask & SILC_CHANNEL_MODE_CIPHER) {
3823 if (!(channel->mode & SILC_CHANNEL_MODE_CIPHER)) {
3824 /* Cipher to use protect the traffic */
3827 cipher = silc_argument_get_arg_type(cmd->args, 5, NULL);
3829 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3830 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3834 /* Delete old cipher and allocate the new one */
3835 silc_cipher_free(channel->channel_key);
3836 if (!silc_cipher_alloc(cipher, &channel->channel_key)) {
3837 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3838 SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
3842 /* Re-generate channel key */
3843 if (!silc_server_create_channel_key(server, channel, 0))
3846 /* Send the channel key. This sends it to our local clients and if
3847 we are normal server to our router as well. */
3848 silc_server_send_channel_key(server, NULL, channel,
3849 server->server_type == SILC_ROUTER ?
3850 FALSE : !server->standalone);
3853 if (channel->mode & SILC_CHANNEL_MODE_CIPHER) {
3854 /* Cipher mode is unset. Remove the cipher and revert back to
3856 cipher = channel->cipher;
3858 /* Delete old cipher and allocate default one */
3859 silc_cipher_free(channel->channel_key);
3860 if (!silc_cipher_alloc(cipher ? cipher : SILC_DEFAULT_CIPHER,
3861 &channel->channel_key)) {
3862 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3863 SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
3867 /* Re-generate channel key */
3868 if (!silc_server_create_channel_key(server, channel, 0))
3871 /* Send the channel key. This sends it to our local clients and if
3872 we are normal server to our router as well. */
3873 silc_server_send_channel_key(server, NULL, channel,
3874 server->server_type == SILC_ROUTER ?
3875 FALSE : !server->standalone);
3879 if (mode_mask & SILC_CHANNEL_MODE_HMAC) {
3880 if (!(channel->mode & SILC_CHANNEL_MODE_HMAC)) {
3881 /* HMAC to use protect the traffic */
3882 unsigned char hash[32];
3885 hmac = silc_argument_get_arg_type(cmd->args, 6, NULL);
3887 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3888 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3892 /* Delete old hmac and allocate the new one */
3893 silc_hmac_free(channel->hmac);
3894 if (!silc_hmac_alloc(hmac, NULL, &channel->hmac)) {
3895 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3896 SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
3900 /* Set the HMAC key out of current channel key. The client must do
3902 silc_hash_make(channel->hmac->hash, channel->key, channel->key_len / 8,
3904 silc_hmac_set_key(channel->hmac, hash,
3905 silc_hash_len(channel->hmac->hash));
3906 memset(hash, 0, sizeof(hash));
3909 if (channel->mode & SILC_CHANNEL_MODE_HMAC) {
3910 /* Hmac mode is unset. Remove the hmac and revert back to
3912 unsigned char hash[32];
3913 hmac = channel->hmac_name;
3915 /* Delete old hmac and allocate default one */
3916 silc_hmac_free(channel->hmac);
3917 if (!silc_hmac_alloc(hmac ? hmac : SILC_DEFAULT_HMAC, NULL,
3919 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3920 SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
3924 /* Set the HMAC key out of current channel key. The client must do
3926 silc_hash_make(channel->hmac->hash, channel->key, channel->key_len / 8,
3928 silc_hmac_set_key(channel->hmac, hash,
3929 silc_hash_len(channel->hmac->hash));
3930 memset(hash, 0, sizeof(hash));
3934 if (mode_mask & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
3935 if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
3936 if (!(channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH)) {
3937 /* Set the founder authentication */
3938 SilcAuthPayload auth;
3940 tmp = silc_argument_get_arg_type(cmd->args, 7, &tmp_len);
3942 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3943 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3947 auth = silc_auth_payload_parse(tmp, tmp_len);
3949 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3950 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3954 /* Save the public key */
3955 tmp = silc_pkcs_public_key_encode(idata->public_key, &tmp_len);
3956 silc_pkcs_public_key_decode(tmp, tmp_len, &channel->founder_key);
3959 channel->founder_method = silc_auth_get_method(auth);
3961 if (channel->founder_method == SILC_AUTH_PASSWORD) {
3962 tmp = silc_auth_get_data(auth, &tmp_len);
3963 channel->founder_passwd =
3964 silc_calloc(tmp_len + 1, sizeof(*channel->founder_passwd));
3965 memcpy(channel->founder_passwd, tmp, tmp_len);
3966 channel->founder_passwd_len = tmp_len;
3968 /* Verify the payload before setting the mode */
3969 if (!silc_auth_verify(auth, channel->founder_method,
3970 channel->founder_key, 0, idata->hash,
3971 client->id, SILC_ID_CLIENT)) {
3972 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3973 SILC_STATUS_ERR_AUTH_FAILED);
3978 silc_auth_payload_free(auth);
3982 if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
3983 if (channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
3984 if (channel->founder_key)
3985 silc_pkcs_public_key_free(channel->founder_key);
3986 if (channel->founder_passwd) {
3987 silc_free(channel->founder_passwd);
3988 channel->founder_passwd = NULL;
3994 /* Finally, set the mode */
3995 channel->mode = mode_mask;
3997 /* Send CMODE_CHANGE notify */
3998 cidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
3999 silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
4000 SILC_NOTIFY_TYPE_CMODE_CHANGE, 4,
4001 cidp->data, cidp->len,
4003 cipher, cipher ? strlen(cipher) : 0,
4004 hmac, hmac ? strlen(hmac) : 0);
4006 /* Set CMODE notify type to network */
4007 if (!server->standalone)
4008 silc_server_send_notify_cmode(server, server->router->connection,
4009 server->server_type == SILC_ROUTER ?
4010 TRUE : FALSE, channel,
4011 mode_mask, client->id, SILC_ID_CLIENT,
4014 /* Send command reply to sender */
4015 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CMODE,
4016 SILC_STATUS_OK, ident, 2,
4017 2, tmp_id, tmp_len2,
4019 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
4020 packet->data, packet->len, FALSE);
4022 silc_buffer_free(packet);
4023 silc_free(channel_id);
4027 silc_server_command_free(cmd);
4030 /* Server side of CUMODE command. Changes client's mode on a channel. */
4032 SILC_SERVER_CMD_FUNC(cumode)
4034 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4035 SilcServer server = cmd->server;
4036 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4037 SilcIDListData idata = (SilcIDListData)client;
4038 SilcChannelID *channel_id;
4039 SilcClientID *client_id;
4040 SilcChannelEntry channel;
4041 SilcClientEntry target_client;
4042 SilcChannelClientEntry chl;
4043 SilcBuffer packet, idp;
4044 unsigned char *tmp_id, *tmp_ch_id, *tmp_mask;
4045 uint32 target_mask, sender_mask = 0, tmp_len, tmp_ch_len;
4047 uint16 ident = silc_command_get_ident(cmd->payload);
4049 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_CUMODE, cmd, 3, 4);
4051 /* Get Channel ID */
4052 tmp_ch_id = silc_argument_get_arg_type(cmd->args, 1, &tmp_ch_len);
4054 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4055 SILC_STATUS_ERR_NO_CHANNEL_ID);
4058 channel_id = silc_id_payload_parse_id(tmp_ch_id, tmp_ch_len);
4060 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4061 SILC_STATUS_ERR_NO_CHANNEL_ID);
4065 /* Get channel entry */
4066 channel = silc_idlist_find_channel_by_id(server->local_list,
4069 channel = silc_idlist_find_channel_by_id(server->global_list,
4072 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4073 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
4078 /* Check whether sender is on the channel */
4079 if (!silc_server_client_on_channel(client, channel)) {
4080 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4081 SILC_STATUS_ERR_NOT_ON_CHANNEL);
4085 /* Check that client has rights to change other's rights */
4086 silc_hash_table_find(channel->user_list, client, NULL, (void *)&chl);
4087 sender_mask = chl->mode;
4089 /* Get the target client's channel mode mask */
4090 tmp_mask = silc_argument_get_arg_type(cmd->args, 2, NULL);
4092 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4093 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
4096 SILC_GET32_MSB(target_mask, tmp_mask);
4098 /* Get target Client ID */
4099 tmp_id = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
4101 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4102 SILC_STATUS_ERR_NO_CLIENT_ID);
4105 client_id = silc_id_payload_parse_id(tmp_id, tmp_len);
4107 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4108 SILC_STATUS_ERR_NO_CLIENT_ID);
4112 /* Get target client's entry */
4113 target_client = silc_idlist_find_client_by_id(server->local_list,
4114 client_id, TRUE, NULL);
4115 if (!target_client) {
4116 target_client = silc_idlist_find_client_by_id(server->global_list,
4117 client_id, TRUE, NULL);
4120 if (target_client != client &&
4121 !(sender_mask & SILC_CHANNEL_UMODE_CHANFO) &&
4122 !(sender_mask & SILC_CHANNEL_UMODE_CHANOP)) {
4123 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4124 SILC_STATUS_ERR_NO_CHANNEL_PRIV);
4128 /* Check whether target client is on the channel */
4129 if (target_client != client) {
4130 if (!silc_server_client_on_channel(target_client, channel)) {
4131 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4132 SILC_STATUS_ERR_USER_NOT_ON_CHANNEL);
4136 /* Get entry to the channel user list */
4137 silc_hash_table_find(channel->user_list, target_client, NULL,
4145 /* If the target client is founder, no one else can change their mode
4147 if (chl->mode & SILC_CHANNEL_UMODE_CHANFO && chl->client != target_client) {
4148 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4149 SILC_STATUS_ERR_NOT_YOU);
4153 if (target_mask & SILC_CHANNEL_UMODE_CHANFO) {
4154 if (!(chl->mode & SILC_CHANNEL_UMODE_CHANFO)) {
4155 /* The client tries to claim the founder rights. */
4156 unsigned char *tmp_auth;
4157 uint32 tmp_auth_len, auth_len;
4160 if (target_client != client) {
4161 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4162 SILC_STATUS_ERR_NOT_YOU);
4166 if (!(channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) ||
4167 !channel->founder_key) {
4168 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4169 SILC_STATUS_ERR_NOT_YOU);
4173 tmp_auth = silc_argument_get_arg_type(cmd->args, 4, &tmp_auth_len);
4175 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4176 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
4180 auth = (channel->founder_method == SILC_AUTH_PASSWORD ?
4181 (void *)channel->founder_passwd : (void *)channel->founder_key);
4182 auth_len = (channel->founder_method == SILC_AUTH_PASSWORD ?
4183 channel->founder_passwd_len : 0);
4185 if (!silc_auth_verify_data(tmp_auth, tmp_auth_len,
4186 channel->founder_method, auth, auth_len,
4187 idata->hash, client->id, SILC_ID_CLIENT)) {
4188 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4189 SILC_STATUS_ERR_AUTH_FAILED);
4193 sender_mask = chl->mode |= SILC_CHANNEL_UMODE_CHANFO;
4197 if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
4198 if (target_client == client) {
4199 /* Remove channel founder rights from itself */
4200 chl->mode &= ~SILC_CHANNEL_UMODE_CHANFO;
4203 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4204 SILC_STATUS_ERR_NOT_YOU);
4210 if (target_mask & SILC_CHANNEL_UMODE_CHANOP) {
4211 /* Promote to operator */
4212 if (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP)) {
4213 if (!(sender_mask & SILC_CHANNEL_UMODE_CHANOP) &&
4214 !(sender_mask & SILC_CHANNEL_UMODE_CHANFO)) {
4215 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4216 SILC_STATUS_ERR_NO_CHANNEL_PRIV);
4220 chl->mode |= SILC_CHANNEL_UMODE_CHANOP;
4224 if (chl->mode & SILC_CHANNEL_UMODE_CHANOP) {
4225 if (!(sender_mask & SILC_CHANNEL_UMODE_CHANOP) &&
4226 !(sender_mask & SILC_CHANNEL_UMODE_CHANFO)) {
4227 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4228 SILC_STATUS_ERR_NO_CHANNEL_PRIV);
4232 /* Demote to normal user */
4233 chl->mode &= ~SILC_CHANNEL_UMODE_CHANOP;
4238 idp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
4239 tmp_id = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
4241 /* Send notify to channel, notify only if mode was actually changed. */
4243 silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
4244 SILC_NOTIFY_TYPE_CUMODE_CHANGE, 3,
4245 idp->data, idp->len,
4249 /* Set CUMODE notify type to network */
4250 if (!server->standalone)
4251 silc_server_send_notify_cumode(server, server->router->connection,
4252 server->server_type == SILC_ROUTER ?
4253 TRUE : FALSE, channel,
4254 target_mask, client->id,
4259 /* Send command reply to sender */
4260 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CUMODE,
4261 SILC_STATUS_OK, ident, 3,
4263 3, tmp_ch_id, tmp_ch_len,
4264 4, tmp_id, tmp_len);
4265 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
4266 packet->data, packet->len, FALSE);
4268 silc_buffer_free(packet);
4269 silc_free(channel_id);
4270 silc_free(client_id);
4271 silc_buffer_free(idp);
4274 silc_server_command_free(cmd);
4277 /* Server side of KICK command. Kicks client out of channel. */
4279 SILC_SERVER_CMD_FUNC(kick)
4281 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4282 SilcServer server = cmd->server;
4283 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4284 SilcClientEntry target_client;
4285 SilcChannelID *channel_id;
4286 SilcClientID *client_id;
4287 SilcChannelEntry channel;
4288 SilcChannelClientEntry chl;
4291 unsigned char *tmp, *comment;
4293 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_LEAVE, cmd, 1, 3);
4295 /* Get Channel ID */
4296 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
4298 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4299 SILC_STATUS_ERR_NO_CHANNEL_ID);
4302 channel_id = silc_id_payload_parse_id(tmp, tmp_len);
4304 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4305 SILC_STATUS_ERR_NO_CHANNEL_ID);
4309 /* Get channel entry */
4310 channel = silc_idlist_find_channel_by_id(server->local_list,
4313 channel = silc_idlist_find_channel_by_id(server->local_list,
4316 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4317 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
4322 /* Check whether sender is on the channel */
4323 if (!silc_server_client_on_channel(client, channel)) {
4324 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4325 SILC_STATUS_ERR_NOT_ON_CHANNEL);
4329 /* Check that the kicker is channel operator or channel founder */
4330 silc_hash_table_find(channel->user_list, client, NULL, (void *)&chl);
4331 if (chl->mode == SILC_CHANNEL_UMODE_NONE) {
4332 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4333 SILC_STATUS_ERR_NO_CHANNEL_PRIV);
4337 /* Get target Client ID */
4338 tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
4340 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4341 SILC_STATUS_ERR_NO_CLIENT_ID);
4344 client_id = silc_id_payload_parse_id(tmp, tmp_len);
4346 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4347 SILC_STATUS_ERR_NO_CLIENT_ID);
4351 /* Get target client's entry */
4352 target_client = silc_idlist_find_client_by_id(server->local_list,
4353 client_id, TRUE, NULL);
4354 if (!target_client) {
4355 target_client = silc_idlist_find_client_by_id(server->global_list,
4356 client_id, TRUE, NULL);
4359 /* Check that the target client is not channel founder. Channel founder
4360 cannot be kicked from the channel. */
4361 silc_hash_table_find(channel->user_list, target_client, NULL, (void *)&chl);
4362 if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
4363 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4364 SILC_STATUS_ERR_NO_CHANNEL_FOPRIV);
4368 /* Check whether target client is on the channel */
4369 if (!silc_server_client_on_channel(target_client, channel)) {
4370 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4371 SILC_STATUS_ERR_USER_NOT_ON_CHANNEL);
4377 comment = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
4381 /* Send command reply to sender */
4382 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4385 /* Send KICKED notify to local clients on the channel */
4386 idp = silc_id_payload_encode(target_client->id, SILC_ID_CLIENT);
4387 silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
4388 SILC_NOTIFY_TYPE_KICKED,
4390 idp->data, idp->len,
4391 comment, comment ? strlen(comment) : 0);
4392 silc_buffer_free(idp);
4394 /* Remove the client from the channel. If the channel does not exist
4395 after removing the client then the client kicked itself off the channel
4396 and we don't have to send anything after that. */
4397 if (!silc_server_remove_from_one_channel(server, NULL, channel,
4398 target_client, FALSE))
4401 /* Send KICKED notify to primary route */
4402 if (!server->standalone)
4403 silc_server_send_notify_kicked(server, server->router->connection,
4404 server->server_type == SILC_ROUTER ?
4405 TRUE : FALSE, channel,
4406 target_client->id, comment);
4408 if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
4409 /* Re-generate channel key */
4410 if (!silc_server_create_channel_key(server, channel, 0))
4413 /* Send the channel key to the channel. The key of course is not sent
4414 to the client who was kicked off the channel. */
4415 silc_server_send_channel_key(server, target_client->connection, channel,
4416 server->server_type == SILC_ROUTER ?
4417 FALSE : !server->standalone);
4421 silc_server_command_free(cmd);
4424 /* Server side of OPER command. Client uses this comand to obtain server
4425 operator privileges to this server/router. */
4427 SILC_SERVER_CMD_FUNC(oper)
4429 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4430 SilcServer server = cmd->server;
4431 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4432 unsigned char *username, *auth;
4434 SilcServerConfigSectionAdminConnection *admin;
4435 SilcIDListData idata = (SilcIDListData)client;
4437 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_OPER, cmd, 1, 2);
4439 if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
4442 /* Get the username */
4443 username = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
4445 silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
4446 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
4450 /* Get the admin configuration */
4451 admin = silc_server_config_find_admin(server->config, cmd->sock->ip,
4452 username, client->nickname);
4454 admin = silc_server_config_find_admin(server->config, cmd->sock->hostname,
4455 username, client->nickname);
4457 silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
4458 SILC_STATUS_ERR_AUTH_FAILED);
4463 /* Get the authentication payload */
4464 auth = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
4466 silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
4467 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
4471 /* Verify the authentication data */
4472 if (!silc_auth_verify_data(auth, tmp_len, admin->auth_meth,
4473 admin->auth_data, admin->auth_data_len,
4474 idata->hash, client->id, SILC_ID_CLIENT)) {
4475 silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
4476 SILC_STATUS_ERR_AUTH_FAILED);
4480 /* Client is now server operator */
4481 client->mode |= SILC_UMODE_SERVER_OPERATOR;
4483 /* Send UMODE change to primary router */
4484 if (!server->standalone)
4485 silc_server_send_notify_umode(server, server->router->connection, TRUE,
4486 client->id, client->mode);
4488 /* Send reply to the sender */
4489 silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
4493 silc_server_command_free(cmd);
4496 /* Server side of SILCOPER command. Client uses this comand to obtain router
4497 operator privileges to this router. */
4499 SILC_SERVER_CMD_FUNC(silcoper)
4501 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4502 SilcServer server = cmd->server;
4503 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4504 unsigned char *username, *auth;
4506 SilcServerConfigSectionAdminConnection *admin;
4507 SilcIDListData idata = (SilcIDListData)client;
4509 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_SILCOPER, cmd, 1, 2);
4511 if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
4514 if (server->server_type != SILC_ROUTER) {
4515 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
4516 SILC_STATUS_ERR_AUTH_FAILED);
4520 /* Get the username */
4521 username = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
4523 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
4524 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
4528 /* Get the admin configuration */
4529 admin = silc_server_config_find_admin(server->config, cmd->sock->ip,
4530 username, client->nickname);
4532 admin = silc_server_config_find_admin(server->config, cmd->sock->hostname,
4533 username, client->nickname);
4535 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
4536 SILC_STATUS_ERR_AUTH_FAILED);
4541 /* Get the authentication payload */
4542 auth = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
4544 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
4545 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
4549 /* Verify the authentication data */
4550 if (!silc_auth_verify_data(auth, tmp_len, admin->auth_meth,
4551 admin->auth_data, admin->auth_data_len,
4552 idata->hash, client->id, SILC_ID_CLIENT)) {
4553 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
4554 SILC_STATUS_ERR_AUTH_FAILED);
4558 /* Client is now router operator */
4559 client->mode |= SILC_UMODE_ROUTER_OPERATOR;
4561 /* Send UMODE change to primary router */
4562 if (!server->standalone)
4563 silc_server_send_notify_umode(server, server->router->connection, TRUE,
4564 client->id, client->mode);
4566 /* Send reply to the sender */
4567 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
4571 silc_server_command_free(cmd);
4574 /* Server side command of CONNECT. Connects us to the specified remote
4575 server or router. */
4577 SILC_SERVER_CMD_FUNC(connect)
4579 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4580 SilcServer server = cmd->server;
4581 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4582 unsigned char *tmp, *host;
4584 uint32 port = SILC_PORT;
4586 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_CONNECT, cmd, 1, 2);
4588 if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
4591 /* Check whether client has the permissions. */
4592 if (client->mode == SILC_UMODE_NONE) {
4593 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CONNECT,
4594 SILC_STATUS_ERR_NO_SERVER_PRIV);
4598 if (server->server_type == SILC_ROUTER &&
4599 client->mode & SILC_UMODE_SERVER_OPERATOR) {
4600 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CONNECT,
4601 SILC_STATUS_ERR_NO_ROUTER_PRIV);
4605 /* Get the remote server */
4606 host = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
4608 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CONNECT,
4609 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
4614 tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
4616 SILC_GET32_MSB(port, tmp);
4618 /* Create the connection. It is done with timeout and is async. */
4619 silc_server_create_connection(server, host, port);
4621 /* Send reply to the sender */
4622 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CONNECT,
4626 silc_server_command_free(cmd);
4629 /* Server side of command BAN. This is used to manage the ban list of the
4630 channel. To add clients and remove clients from the ban list. */
4632 SILC_SERVER_CMD_FUNC(ban)
4634 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4635 SilcServer server = cmd->server;
4636 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4638 SilcChannelEntry channel;
4639 SilcChannelClientEntry chl;
4640 SilcChannelID *channel_id = NULL;
4641 unsigned char *id, *add, *del;
4642 uint32 id_len, tmp_len;
4643 uint16 ident = silc_command_get_ident(cmd->payload);
4645 if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
4648 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_BAN, cmd, 0, 3);
4650 /* Get Channel ID */
4651 id = silc_argument_get_arg_type(cmd->args, 1, &id_len);
4653 channel_id = silc_id_payload_parse_id(id, id_len);
4655 silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
4656 SILC_STATUS_ERR_NO_CHANNEL_ID);
4661 /* Get channel entry. The server must know about the channel since the
4662 client is expected to be on the channel. */
4663 channel = silc_idlist_find_channel_by_id(server->local_list,
4666 channel = silc_idlist_find_channel_by_id(server->global_list,
4669 silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
4670 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
4675 /* Check whether this client is on the channel */
4676 if (!silc_server_client_on_channel(client, channel)) {
4677 silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
4678 SILC_STATUS_ERR_NOT_ON_CHANNEL);
4682 /* Get entry to the channel user list */
4683 silc_hash_table_find(channel->user_list, client, NULL, (void *)&chl);
4685 /* The client must be at least channel operator. */
4686 if (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP)) {
4687 silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
4688 SILC_STATUS_ERR_NO_CHANNEL_PRIV);
4692 /* Get the new ban and add it to the ban list */
4693 add = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
4695 if (!channel->ban_list)
4696 channel->ban_list = silc_calloc(tmp_len + 2, sizeof(*channel->ban_list));
4698 channel->ban_list = silc_realloc(channel->ban_list,
4699 sizeof(*channel->ban_list) *
4701 strlen(channel->ban_list) + 2));
4702 if (add[tmp_len - 1] == ',')
4703 add[tmp_len - 1] = '\0';
4705 strncat(channel->ban_list, add, tmp_len);
4706 strncat(channel->ban_list, ",", 1);
4709 /* Get the ban to be removed and remove it from the list */
4710 del = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
4711 if (del && channel->ban_list) {
4712 char *start, *end, *n;
4714 if (!strncmp(channel->ban_list, del, strlen(channel->ban_list) - 1)) {
4715 silc_free(channel->ban_list);
4716 channel->ban_list = NULL;
4718 start = strstr(channel->ban_list, del);
4719 if (start && strlen(start) >= tmp_len) {
4720 end = start + tmp_len;
4721 n = silc_calloc(strlen(channel->ban_list) - tmp_len, sizeof(*n));
4722 strncat(n, channel->ban_list, start - channel->ban_list);
4723 strncat(n, end + 1, ((channel->ban_list + strlen(channel->ban_list)) -
4725 silc_free(channel->ban_list);
4726 channel->ban_list = n;
4731 /* Send the BAN notify type to our primary router. */
4732 if (!server->standalone && (add || del))
4733 silc_server_send_notify_ban(server, server->router->connection,
4734 server->server_type == SILC_ROUTER ?
4735 TRUE : FALSE, channel, add, del);
4737 /* Send the reply back to the client */
4738 if (channel->ban_list)
4740 silc_command_reply_payload_encode_va(SILC_COMMAND_BAN,
4741 SILC_STATUS_OK, ident, 2,
4743 3, channel->ban_list,
4744 strlen(channel->ban_list) - 1);
4747 silc_command_reply_payload_encode_va(SILC_COMMAND_BAN,
4748 SILC_STATUS_OK, ident, 1,
4751 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
4752 packet->data, packet->len, FALSE);
4754 silc_buffer_free(packet);
4757 silc_free(channel_id);
4758 silc_server_command_free(cmd);
4761 /* Server side command of CLOSE. Closes connection to a specified server. */
4763 SILC_SERVER_CMD_FUNC(close)
4765 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4766 SilcServer server = cmd->server;
4767 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4768 SilcServerEntry server_entry;
4769 SilcSocketConnection sock;
4772 unsigned char *name;
4773 uint32 port = SILC_PORT;
4775 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_CLOSE, cmd, 1, 2);
4777 if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
4780 /* Check whether client has the permissions. */
4781 if (client->mode == SILC_UMODE_NONE) {
4782 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
4783 SILC_STATUS_ERR_NO_SERVER_PRIV);
4787 /* Get the remote server */
4788 name = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
4790 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
4791 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
4796 tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
4798 SILC_GET32_MSB(port, tmp);
4800 server_entry = silc_idlist_find_server_by_conn(server->local_list,
4801 name, port, FALSE, NULL);
4802 if (!server_entry) {
4803 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
4804 SILC_STATUS_ERR_NO_SERVER_ID);
4808 /* Send reply to the sender */
4809 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
4812 /* Close the connection to the server */
4813 sock = (SilcSocketConnection)server_entry->connection;
4815 /* If we shutdown primary router connection manually then don't trigger
4816 any reconnect or backup router connections, by setting the router
4818 if (server->router == server_entry) {
4819 server->id_entry->router = NULL;
4820 server->router = NULL;
4821 server->standalone = TRUE;
4823 silc_server_free_sock_user_data(server, sock);
4824 silc_server_close_connection(server, sock);
4827 silc_server_command_free(cmd);
4830 /* Server side command of SHUTDOWN. Shutdowns the server and closes all
4831 active connections. */
4833 SILC_SERVER_CMD_FUNC(shutdown)
4835 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4836 SilcServer server = cmd->server;
4837 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4839 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_SHUTDOWN, cmd, 0, 0);
4841 if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
4844 /* Check whether client has the permission. */
4845 if (client->mode == SILC_UMODE_NONE) {
4846 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SHUTDOWN,
4847 SILC_STATUS_ERR_NO_SERVER_PRIV);
4851 /* Send reply to the sender */
4852 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SHUTDOWN,
4855 /* Then, gracefully, or not, bring the server down. */
4856 silc_server_stop(server);
4860 silc_server_command_free(cmd);
4863 /* Server side command of LEAVE. Removes client from a channel. */
4865 SILC_SERVER_CMD_FUNC(leave)
4867 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4868 SilcServer server = cmd->server;
4869 SilcSocketConnection sock = cmd->sock;
4870 SilcClientEntry id_entry = (SilcClientEntry)cmd->sock->user_data;
4871 SilcChannelID *id = NULL;
4872 SilcChannelEntry channel;
4876 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_LEAVE, cmd, 1, 2);
4878 /* Get Channel ID */
4879 tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
4881 silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
4882 SILC_STATUS_ERR_NO_CHANNEL_ID);
4885 id = silc_id_payload_parse_id(tmp, len);
4887 silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
4888 SILC_STATUS_ERR_NO_CHANNEL_ID);
4892 /* Get channel entry */
4893 channel = silc_idlist_find_channel_by_id(server->local_list, id, NULL);
4895 channel = silc_idlist_find_channel_by_id(server->global_list, id, NULL);
4897 silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
4898 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
4903 /* Check whether this client is on the channel */
4904 if (!silc_server_client_on_channel(id_entry, channel)) {
4905 silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
4906 SILC_STATUS_ERR_NOT_ON_CHANNEL);
4910 /* Notify routers that they should remove this client from their list
4911 of clients on the channel. Send LEAVE notify type. */
4912 if (!server->standalone)
4913 silc_server_send_notify_leave(server, server->router->connection,
4914 server->server_type == SILC_ROUTER ?
4915 TRUE : FALSE, channel, id_entry->id);
4917 silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
4920 /* Remove client from channel */
4921 if (!silc_server_remove_from_one_channel(server, sock, channel, id_entry,
4923 /* If the channel does not exist anymore we won't send anything */
4926 if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
4927 /* Re-generate channel key */
4928 if (!silc_server_create_channel_key(server, channel, 0))
4931 /* Send the channel key */
4932 silc_server_send_channel_key(server, NULL, channel,
4933 server->server_type == SILC_ROUTER ?
4934 FALSE : !server->standalone);
4939 silc_server_command_free(cmd);
4942 /* Server side of command USERS. Resolves clients and their USERS currently
4943 joined on the requested channel. The list of Client ID's and their modes
4944 on the channel is sent back. */
4946 SILC_SERVER_CMD_FUNC(users)
4948 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4949 SilcServer server = cmd->server;
4950 SilcChannelEntry channel;
4951 SilcChannelID *id = NULL;
4952 SilcBuffer packet, idp;
4953 unsigned char *channel_id;
4954 uint32 channel_id_len;
4955 SilcBuffer client_id_list;
4956 SilcBuffer client_mode_list;
4957 unsigned char lc[4];
4958 uint32 list_count = 0;
4959 uint16 ident = silc_command_get_ident(cmd->payload);
4962 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_USERS, cmd, 1, 2);
4964 /* Get Channel ID */
4965 channel_id = silc_argument_get_arg_type(cmd->args, 1, &channel_id_len);
4967 /* Get channel name */
4968 channel_name = silc_argument_get_arg_type(cmd->args, 2, NULL);
4970 if (!channel_id && !channel_name) {
4971 silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
4972 SILC_STATUS_ERR_NO_CHANNEL_ID);
4977 id = silc_id_payload_parse_id(channel_id, channel_id_len);
4979 silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
4980 SILC_STATUS_ERR_NO_CHANNEL_ID);
4985 /* If we are server and we don't know about this channel we will send
4986 the command to our router. If we know about the channel then we also
4987 have the list of users already. */
4989 channel = silc_idlist_find_channel_by_id(server->local_list, id, NULL);
4991 channel = silc_idlist_find_channel_by_name(server->local_list,
4992 channel_name, NULL);
4995 if (server->server_type != SILC_ROUTER && !server->standalone &&
4999 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
5000 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
5002 /* Send USERS command */
5003 silc_server_packet_send(server, server->router->connection,
5004 SILC_PACKET_COMMAND, cmd->packet->flags,
5005 tmpbuf->data, tmpbuf->len, TRUE);
5007 /* Reprocess this packet after received reply */
5008 silc_server_command_pending(server, SILC_COMMAND_USERS,
5009 silc_command_get_ident(cmd->payload),
5010 silc_server_command_destructor,
5011 silc_server_command_users,
5012 silc_server_command_dup(cmd));
5013 cmd->pending = TRUE;
5014 silc_command_set_ident(cmd->payload, ident);
5016 silc_buffer_free(tmpbuf);
5021 /* Check the global list as well. */
5023 channel = silc_idlist_find_channel_by_id(server->global_list, id, NULL);
5025 channel = silc_idlist_find_channel_by_name(server->global_list,
5026 channel_name, NULL);
5028 /* Channel really does not exist */
5029 silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
5030 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
5035 /* If the channel is private or secret do not send anything, unless the
5036 user requesting this command is on the channel. */
5037 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
5038 if (channel->mode & (SILC_CHANNEL_MODE_PRIVATE | SILC_CHANNEL_MODE_SECRET)
5039 && !silc_server_client_on_channel(cmd->sock->user_data, channel)) {
5040 silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
5041 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
5046 (SILC_CHANNEL_MODE_PRIVATE | SILC_CHANNEL_MODE_SECRET)) {
5047 silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
5048 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
5053 /* Get the users list */
5054 silc_server_get_users_on_channel(server, channel, &client_id_list,
5055 &client_mode_list, &list_count);
5058 SILC_PUT32_MSB(list_count, lc);
5061 idp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
5062 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_USERS,
5063 SILC_STATUS_OK, ident, 4,
5064 2, idp->data, idp->len,
5066 4, client_id_list->data,
5067 client_id_list->len,
5068 5, client_mode_list->data,
5069 client_mode_list->len);
5070 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
5071 packet->data, packet->len, FALSE);
5073 silc_buffer_free(idp);
5074 silc_buffer_free(packet);
5075 silc_buffer_free(client_id_list);
5076 silc_buffer_free(client_mode_list);
5080 silc_server_command_free(cmd);
5083 /* Server side of command GETKEY. This fetches the client's public key
5084 from the server where to the client is connected. */
5086 SILC_SERVER_CMD_FUNC(getkey)
5088 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
5089 SilcServer server = cmd->server;
5091 SilcClientEntry client;
5092 SilcServerEntry server_entry;
5093 SilcClientID *client_id = NULL;
5094 SilcServerID *server_id = NULL;
5095 SilcIDPayload idp = NULL;
5096 uint16 ident = silc_command_get_ident(cmd->payload);
5097 unsigned char *tmp, *pkdata;
5098 uint32 tmp_len, pklen;
5099 SilcBuffer pk = NULL;
5102 SILC_LOG_DEBUG(("Start"));
5104 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
5106 silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
5107 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
5110 idp = silc_id_payload_parse_data(tmp, tmp_len);
5112 silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
5113 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
5117 id_type = silc_id_payload_get_type(idp);
5118 if (id_type == SILC_ID_CLIENT) {
5119 client_id = silc_id_payload_get_id(idp);
5121 /* If the client is not found from local list there is no chance it
5122 would be locally connected client so send the command further. */
5123 client = silc_idlist_find_client_by_id(server->local_list,
5124 client_id, TRUE, NULL);
5126 client = silc_idlist_find_client_by_id(server->global_list,
5127 client_id, TRUE, NULL);
5129 if ((!client && !cmd->pending && !server->standalone) ||
5130 (client && !client->connection && !cmd->pending) ||
5131 (client && !client->data.public_key && !cmd->pending)) {
5134 SilcSocketConnection dest_sock;
5136 dest_sock = silc_server_get_client_route(server, NULL, 0,
5141 old_ident = silc_command_get_ident(cmd->payload);
5142 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
5143 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
5145 silc_server_packet_send(server, dest_sock,
5146 SILC_PACKET_COMMAND, cmd->packet->flags,
5147 tmpbuf->data, tmpbuf->len, TRUE);
5149 /* Reprocess this packet after received reply from router */
5150 silc_server_command_pending(server, SILC_COMMAND_GETKEY,
5151 silc_command_get_ident(cmd->payload),
5152 silc_server_command_destructor,
5153 silc_server_command_getkey,
5154 silc_server_command_dup(cmd));
5155 cmd->pending = TRUE;
5157 silc_command_set_ident(cmd->payload, old_ident);
5158 silc_buffer_free(tmpbuf);
5163 silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
5164 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID);
5168 /* The client is locally connected, just get the public key and
5169 send it back. If they key does not exist then do not send it,
5170 send just OK reply */
5171 if (!client->data.public_key) {
5175 tmp = silc_pkcs_public_key_encode(client->data.public_key, &tmp_len);
5176 pk = silc_buffer_alloc(4 + tmp_len);
5177 silc_buffer_pull_tail(pk, SILC_BUFFER_END(pk));
5178 silc_buffer_format(pk,
5179 SILC_STR_UI_SHORT(tmp_len),
5180 SILC_STR_UI_SHORT(SILC_SKE_PK_TYPE_SILC),
5181 SILC_STR_UI_XNSTRING(tmp, tmp_len),
5187 } else if (id_type == SILC_ID_SERVER) {
5188 server_id = silc_id_payload_get_id(idp);
5190 /* If the server is not found from local list there is no chance it
5191 would be locally connected server so send the command further. */
5192 server_entry = silc_idlist_find_server_by_id(server->local_list,
5193 server_id, TRUE, NULL);
5195 server_entry = silc_idlist_find_server_by_id(server->global_list,
5196 server_id, TRUE, NULL);
5198 if (server_entry != server->id_entry &&
5199 ((!server_entry && !cmd->pending && !server->standalone) ||
5200 (server_entry && !server_entry->connection && !cmd->pending &&
5201 !server->standalone) ||
5202 (server_entry && !server_entry->data.public_key && !cmd->pending &&
5203 !server->standalone))) {
5207 old_ident = silc_command_get_ident(cmd->payload);
5208 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
5209 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
5211 silc_server_packet_send(server, server->router->connection,
5212 SILC_PACKET_COMMAND, cmd->packet->flags,
5213 tmpbuf->data, tmpbuf->len, TRUE);
5215 /* Reprocess this packet after received reply from router */
5216 silc_server_command_pending(server, SILC_COMMAND_GETKEY,
5217 silc_command_get_ident(cmd->payload),
5218 silc_server_command_destructor,
5219 silc_server_command_getkey,
5220 silc_server_command_dup(cmd));
5221 cmd->pending = TRUE;
5223 silc_command_set_ident(cmd->payload, old_ident);
5224 silc_buffer_free(tmpbuf);
5228 if (!server_entry) {
5229 silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
5230 SILC_STATUS_ERR_NO_SUCH_SERVER_ID);
5234 /* If they key does not exist then do not send it, send just OK reply */
5235 if (!server_entry->data.public_key) {
5239 tmp = silc_pkcs_public_key_encode(server_entry->data.public_key,
5241 pk = silc_buffer_alloc(4 + tmp_len);
5242 silc_buffer_pull_tail(pk, SILC_BUFFER_END(pk));
5243 silc_buffer_format(pk,
5244 SILC_STR_UI_SHORT(tmp_len),
5245 SILC_STR_UI_SHORT(SILC_SKE_PK_TYPE_SILC),
5246 SILC_STR_UI_XNSTRING(tmp, tmp_len),
5256 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
5257 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_GETKEY,
5258 SILC_STATUS_OK, ident,
5262 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
5263 packet->data, packet->len, FALSE);
5264 silc_buffer_free(packet);
5267 silc_buffer_free(pk);
5271 silc_id_payload_free(idp);
5272 silc_free(client_id);
5273 silc_free(server_id);
5274 silc_server_command_free(cmd);