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,
2959 SilcSocketConnection sock = cmd->sock;
2961 uint32 tmp_len, user_count;
2962 unsigned char *passphrase = NULL, mode[4], tmp2[4], tmp3[4];
2963 SilcClientEntry client;
2964 SilcChannelClientEntry chl;
2965 SilcBuffer reply, chidp, clidp, keyp = NULL, user_list, mode_list;
2966 uint16 ident = silc_command_get_ident(cmd->payload);
2967 char check[512], check2[512];
2969 SILC_LOG_DEBUG(("Start"));
2974 /* Get the client entry */
2975 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
2976 client = (SilcClientEntry)sock->user_data;
2978 client = silc_server_get_client_resolve(server, client_id);
2983 /* The client info is being resolved. Reprocess this packet after
2984 receiving the reply to the query. */
2985 silc_server_command_pending(server, SILC_COMMAND_WHOIS,
2986 server->cmd_ident, NULL,
2987 silc_server_command_join,
2988 silc_server_command_dup(cmd));
2989 cmd->pending = TRUE;
2993 cmd->pending = FALSE;
2997 * Check channel modes
3000 memset(check, 0, sizeof(check));
3001 memset(check2, 0, sizeof(check2));
3002 strncat(check, client->nickname, strlen(client->nickname));
3003 strncat(check, "!", 1);
3004 strncat(check, client->username, strlen(client->username));
3005 if (!strchr(client->username, '@')) {
3006 strncat(check, "@", 1);
3007 strncat(check, cmd->sock->hostname, strlen(cmd->sock->hostname));
3010 strncat(check2, client->nickname, strlen(client->nickname));
3011 if (!strchr(client->nickname, '@')) {
3012 strncat(check2, "@", 1);
3013 strncat(check2, server->server_name, strlen(server->server_name));
3015 strncat(check2, "!", 1);
3016 strncat(check2, client->username, strlen(client->username));
3017 if (!strchr(client->username, '@')) {
3018 strncat(check2, "@", 1);
3019 strncat(check2, cmd->sock->hostname, strlen(cmd->sock->hostname));
3022 /* Check invite list if channel is invite-only channel */
3023 if (channel->mode & SILC_CHANNEL_MODE_INVITE) {
3024 if (!channel->invite_list ||
3025 (!silc_string_match(channel->invite_list, check) &&
3026 !silc_string_match(channel->invite_list, check2))) {
3027 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3028 SILC_STATUS_ERR_NOT_INVITED);
3033 /* Check ban list if it exists. If the client's nickname, server,
3034 username and/or hostname is in the ban list the access to the
3035 channel is denied. */
3036 if (channel->ban_list) {
3037 if (silc_string_match(channel->ban_list, check) ||
3038 silc_string_match(channel->ban_list, check2)) {
3039 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3040 SILC_STATUS_ERR_BANNED_FROM_CHANNEL);
3045 /* Get passphrase */
3046 tmp = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
3048 passphrase = silc_calloc(tmp_len, sizeof(*passphrase));
3049 memcpy(passphrase, tmp, tmp_len);
3052 /* Check the channel passphrase if set. */
3053 if (channel->mode & SILC_CHANNEL_MODE_PASSPHRASE) {
3054 if (!passphrase || memcmp(channel->passphrase, passphrase,
3055 strlen(channel->passphrase))) {
3056 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3057 SILC_STATUS_ERR_BAD_PASSWORD);
3062 /* Check user count limit if set. */
3063 if (channel->mode & SILC_CHANNEL_MODE_ULIMIT) {
3064 if (silc_hash_table_count(channel->user_list) + 1 >
3065 channel->user_limit) {
3066 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3067 SILC_STATUS_ERR_CHANNEL_IS_FULL);
3073 * Client is allowed to join to the channel. Make it happen.
3076 /* Check whether the client already is on the channel */
3077 if (silc_server_client_on_channel(client, channel)) {
3078 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3079 SILC_STATUS_ERR_USER_ON_CHANNEL);
3083 /* Generate new channel key as protocol dictates */
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);
3096 /* Join the client to the channel by adding it to channel's user list.
3097 Add also the channel to client entry's channels list for fast cross-
3099 chl = silc_calloc(1, sizeof(*chl));
3101 chl->client = client;
3102 chl->channel = channel;
3103 silc_hash_table_add(channel->user_list, client, chl);
3104 silc_hash_table_add(client->channels, channel, chl);
3106 /* Get users on the channel */
3107 silc_server_get_users_on_channel(server, channel, &user_list, &mode_list,
3110 /* Encode Client ID Payload of the original client who wants to join */
3111 clidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
3113 /* Encode command reply packet */
3114 chidp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
3115 SILC_PUT32_MSB(channel->mode, mode);
3116 SILC_PUT32_MSB(created, tmp2);
3117 SILC_PUT32_MSB(user_count, tmp3);
3119 if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
3120 tmp = silc_id_id2str(channel->id, SILC_ID_CHANNEL);
3121 keyp = silc_channel_key_payload_encode(SILC_ID_CHANNEL_LEN, tmp,
3122 strlen(channel->channel_key->
3124 channel->channel_key->cipher->name,
3125 channel->key_len / 8, channel->key);
3130 silc_command_reply_payload_encode_va(SILC_COMMAND_JOIN,
3131 SILC_STATUS_OK, ident, 13,
3132 2, channel->channel_name,
3133 strlen(channel->channel_name),
3134 3, chidp->data, chidp->len,
3135 4, clidp->data, clidp->len,
3138 7, keyp ? keyp->data : NULL,
3139 keyp ? keyp->len : 0,
3140 8, channel->ban_list,
3142 strlen(channel->ban_list) : 0,
3143 9, channel->invite_list,
3144 channel->invite_list ?
3145 strlen(channel->invite_list) : 0,
3148 strlen(channel->topic) : 0,
3149 11, channel->hmac->hmac->name,
3150 strlen(channel->hmac->hmac->name),
3152 13, user_list->data, user_list->len,
3153 14, mode_list->data,
3156 /* Send command reply */
3157 silc_server_packet_send(server, sock, SILC_PACKET_COMMAND_REPLY, 0,
3158 reply->data, reply->len, FALSE);
3160 /* Send JOIN notify to locally connected clients on the channel. If
3161 we are normal server then router will send or have sent JOIN notify
3162 already. However since we've added the client already to our channel
3163 we'll ignore it (in packet_receive.c) so we must send it here. If
3164 we are router then this will send it to local clients and local
3166 silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
3167 SILC_NOTIFY_TYPE_JOIN, 2,
3168 clidp->data, clidp->len,
3169 chidp->data, chidp->len);
3171 if (!cmd->pending) {
3172 /* Send JOIN notify packet to our primary router */
3173 if (!server->standalone)
3174 silc_server_send_notify_join(server, server->router->connection,
3175 server->server_type == SILC_ROUTER ?
3176 TRUE : FALSE, channel, client->id);
3179 /* Distribute the channel key to all backup routers. */
3180 silc_server_backup_send(server, NULL, SILC_PACKET_CHANNEL_KEY, 0,
3181 keyp->data, keyp->len, FALSE, TRUE);
3184 silc_buffer_free(reply);
3185 silc_buffer_free(clidp);
3186 silc_buffer_free(chidp);
3187 silc_buffer_free(keyp);
3188 silc_buffer_free(user_list);
3189 silc_buffer_free(mode_list);
3192 silc_free(passphrase);
3195 /* Server side of command JOIN. Joins client into requested channel. If
3196 the channel does not exist it will be created. */
3198 SILC_SERVER_CMD_FUNC(join)
3200 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
3201 SilcServer server = cmd->server;
3203 char *tmp, *channel_name = NULL, *cipher, *hmac;
3204 SilcChannelEntry channel;
3206 bool created = FALSE, create_key = TRUE;
3207 SilcClientID *client_id;
3209 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_JOIN, cmd, 1, 4);
3211 /* Get channel name */
3212 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
3214 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3215 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3220 if (strlen(channel_name) > 256)
3221 channel_name[255] = '\0';
3223 if (silc_server_command_bad_chars(channel_name) == TRUE) {
3224 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3225 SILC_STATUS_ERR_BAD_CHANNEL);
3229 /* Get Client ID of the client who is joining to the channel */
3230 tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
3232 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3233 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3236 client_id = silc_id_payload_parse_id(tmp, tmp_len);
3238 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3239 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3243 /* Get cipher and hmac name */
3244 cipher = silc_argument_get_arg_type(cmd->args, 4, NULL);
3245 hmac = silc_argument_get_arg_type(cmd->args, 5, NULL);
3247 /* See if the channel exists */
3248 channel = silc_idlist_find_channel_by_name(server->local_list,
3249 channel_name, NULL);
3251 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
3252 /* If this is coming from client the Client ID in the command packet must
3253 be same as the client's ID. */
3254 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
3255 SilcClientEntry entry = (SilcClientEntry)cmd->sock->user_data;
3256 if (!SILC_ID_CLIENT_COMPARE(entry->id, client_id)) {
3257 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3258 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3263 if (!channel || !channel->id) {
3264 /* Channel not found */
3266 /* If we are standalone server we don't have a router, we just create
3267 the channel by ourselves. */
3268 if (server->standalone) {
3269 channel = silc_server_create_new_channel(server, server->id, cipher,
3270 hmac, channel_name, TRUE);
3272 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3273 SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
3277 umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
3283 /* The channel does not exist on our server. If we are normal server
3284 we will send JOIN command to our router which will handle the
3285 joining procedure (either creates the channel if it doesn't exist
3286 or joins the client to it). */
3287 if (server->server_type != SILC_ROUTER) {
3291 /* If this is pending command callback then we've resolved
3292 it and it didn't work, return since we've notified the
3293 client already in the command reply callback. */
3297 old_ident = silc_command_get_ident(cmd->payload);
3298 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
3299 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
3301 /* Send JOIN command to our router */
3302 silc_server_packet_send(server, (SilcSocketConnection)
3303 server->router->connection,
3304 SILC_PACKET_COMMAND, cmd->packet->flags,
3305 tmpbuf->data, tmpbuf->len, TRUE);
3307 /* Reprocess this packet after received reply from router */
3308 silc_server_command_pending(server, SILC_COMMAND_JOIN,
3309 silc_command_get_ident(cmd->payload),
3310 silc_server_command_destructor,
3311 silc_server_command_join,
3312 silc_server_command_dup(cmd));
3313 cmd->pending = TRUE;
3317 /* We are router and the channel does not seem exist so we will check
3318 our global list as well for the channel. */
3319 channel = silc_idlist_find_channel_by_name(server->global_list,
3320 channel_name, NULL);
3322 /* Channel really does not exist, create it */
3323 channel = silc_server_create_new_channel(server, server->id, cipher,
3324 hmac, channel_name, TRUE);
3326 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3327 SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
3331 umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
3339 /* Channel not found */
3341 /* If the command came from router and we are normal server then
3342 something went wrong with the joining as the channel was not found.
3343 We can't do anything else but ignore this. */
3344 if (cmd->sock->type == SILC_SOCKET_TYPE_ROUTER ||
3345 server->server_type != SILC_ROUTER)
3348 /* We are router and the channel does not seem exist so we will check
3349 our global list as well for the channel. */
3350 channel = silc_idlist_find_channel_by_name(server->global_list,
3351 channel_name, NULL);
3353 /* Channel really does not exist, create it */
3354 channel = silc_server_create_new_channel(server, server->id, cipher,
3355 hmac, channel_name, TRUE);
3357 silc_server_command_send_status_reply(cmd, SILC_COMMAND_JOIN,
3358 SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
3362 umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
3369 /* Check whether the channel was created by our router */
3370 if (cmd->pending && context2) {
3371 SilcServerCommandReplyContext reply =
3372 (SilcServerCommandReplyContext)context2;
3373 if (silc_command_get(reply->payload) == SILC_COMMAND_JOIN) {
3374 tmp = silc_argument_get_arg_type(reply->args, 6, NULL);
3375 SILC_GET32_MSB(created, tmp);
3376 create_key = FALSE; /* Router returned the key already */
3380 /* If the channel does not have global users and is also empty the client
3381 will be the channel founder and operator. */
3382 if (!channel->global_users && !silc_hash_table_count(channel->user_list))
3383 umode = (SILC_CHANNEL_UMODE_CHANOP | SILC_CHANNEL_UMODE_CHANFO);
3385 /* Join to the channel */
3386 silc_server_command_join_channel(server, cmd, channel, client_id,
3387 created, create_key, umode);
3389 silc_free(client_id);
3392 silc_server_command_free(cmd);
3395 /* Server side of command MOTD. Sends server's current "message of the
3396 day" to the client. */
3398 SILC_SERVER_CMD_FUNC(motd)
3400 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
3401 SilcServer server = cmd->server;
3402 SilcBuffer packet, idp;
3403 char *motd, *dest_server;
3405 uint16 ident = silc_command_get_ident(cmd->payload);
3407 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_MOTD, cmd, 1, 1);
3409 /* Get server name */
3410 dest_server = silc_argument_get_arg_type(cmd->args, 1, NULL);
3412 silc_server_command_send_status_reply(cmd, SILC_COMMAND_MOTD,
3413 SILC_STATUS_ERR_NO_SUCH_SERVER);
3417 if (!strncasecmp(dest_server, server->server_name, strlen(dest_server))) {
3420 idp = silc_id_payload_encode(server->id_entry->id, SILC_ID_SERVER);
3422 if (server->config && server->config->motd &&
3423 server->config->motd->motd_file) {
3425 motd = silc_file_read(server->config->motd->motd_file, &motd_len);
3430 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
3431 SILC_STATUS_OK, ident, 2,
3437 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
3438 SILC_STATUS_OK, ident, 1,
3442 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
3443 packet->data, packet->len, FALSE);
3444 silc_buffer_free(packet);
3445 silc_buffer_free(idp);
3447 SilcServerEntry entry;
3449 /* Check whether we have this server cached */
3450 entry = silc_idlist_find_server_by_name(server->global_list,
3451 dest_server, TRUE, NULL);
3453 entry = silc_idlist_find_server_by_name(server->local_list,
3454 dest_server, TRUE, NULL);
3457 if (server->server_type != SILC_SERVER && !cmd->pending &&
3458 entry && !entry->motd) {
3459 /* Send to the server */
3463 old_ident = silc_command_get_ident(cmd->payload);
3464 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
3465 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
3467 silc_server_packet_send(server, entry->connection,
3468 SILC_PACKET_COMMAND, cmd->packet->flags,
3469 tmpbuf->data, tmpbuf->len, TRUE);
3471 /* Reprocess this packet after received reply from router */
3472 silc_server_command_pending(server, SILC_COMMAND_MOTD,
3473 silc_command_get_ident(cmd->payload),
3474 silc_server_command_destructor,
3475 silc_server_command_motd,
3476 silc_server_command_dup(cmd));
3477 cmd->pending = TRUE;
3478 silc_command_set_ident(cmd->payload, old_ident);
3479 silc_buffer_free(tmpbuf);
3483 if (!entry && !cmd->pending && !server->standalone) {
3484 /* Send to the primary router */
3488 old_ident = silc_command_get_ident(cmd->payload);
3489 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
3490 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
3492 silc_server_packet_send(server, server->router->connection,
3493 SILC_PACKET_COMMAND, cmd->packet->flags,
3494 tmpbuf->data, tmpbuf->len, TRUE);
3496 /* Reprocess this packet after received reply from router */
3497 silc_server_command_pending(server, SILC_COMMAND_MOTD,
3498 silc_command_get_ident(cmd->payload),
3499 silc_server_command_destructor,
3500 silc_server_command_motd,
3501 silc_server_command_dup(cmd));
3502 cmd->pending = TRUE;
3503 silc_command_set_ident(cmd->payload, old_ident);
3504 silc_buffer_free(tmpbuf);
3509 silc_server_command_send_status_reply(cmd, SILC_COMMAND_INFO,
3510 SILC_STATUS_ERR_NO_SUCH_SERVER);
3514 idp = silc_id_payload_encode(server->id_entry->id, SILC_ID_SERVER);
3517 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
3518 SILC_STATUS_OK, ident, 2,
3521 strlen(entry->motd));
3523 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_MOTD,
3524 SILC_STATUS_OK, ident, 1,
3527 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
3528 packet->data, packet->len, FALSE);
3529 silc_buffer_free(packet);
3530 silc_buffer_free(idp);
3534 silc_server_command_free(cmd);
3537 /* Server side of command UMODE. Client can use this command to set/unset
3538 user mode. Client actually cannot set itself to be as server/router
3539 operator so this can be used only to unset the modes. */
3541 SILC_SERVER_CMD_FUNC(umode)
3543 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
3544 SilcServer server = cmd->server;
3545 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
3547 unsigned char *tmp_mask;
3549 uint16 ident = silc_command_get_ident(cmd->payload);
3551 if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
3554 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_UMODE, cmd, 2, 2);
3556 /* Get the client's mode mask */
3557 tmp_mask = silc_argument_get_arg_type(cmd->args, 2, NULL);
3559 silc_server_command_send_status_reply(cmd, SILC_COMMAND_UMODE,
3560 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3563 SILC_GET32_MSB(mask, tmp_mask);
3569 if (mask & SILC_UMODE_SERVER_OPERATOR) {
3570 if (!(client->mode & SILC_UMODE_SERVER_OPERATOR)) {
3571 /* Cannot operator mode */
3572 silc_server_command_send_status_reply(cmd, SILC_COMMAND_UMODE,
3573 SILC_STATUS_ERR_PERM_DENIED);
3577 if (client->mode & SILC_UMODE_SERVER_OPERATOR)
3578 /* Remove the server operator rights */
3579 client->mode &= ~SILC_UMODE_SERVER_OPERATOR;
3582 if (mask & SILC_UMODE_ROUTER_OPERATOR) {
3583 if (!(client->mode & SILC_UMODE_ROUTER_OPERATOR)) {
3584 /* Cannot operator mode */
3585 silc_server_command_send_status_reply(cmd, SILC_COMMAND_UMODE,
3586 SILC_STATUS_ERR_PERM_DENIED);
3590 if (client->mode & SILC_UMODE_ROUTER_OPERATOR)
3591 /* Remove the router operator rights */
3592 client->mode &= ~SILC_UMODE_ROUTER_OPERATOR;
3595 if (mask & SILC_UMODE_GONE) {
3596 client->mode |= SILC_UMODE_GONE;
3598 if (client->mode & SILC_UMODE_GONE)
3599 /* Remove the gone status */
3600 client->mode &= ~SILC_UMODE_GONE;
3603 /* Send UMODE change to primary router */
3604 if (!server->standalone)
3605 silc_server_send_notify_umode(server, server->router->connection, TRUE,
3606 client->id, client->mode);
3608 /* Send command reply to sender */
3609 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_UMODE,
3610 SILC_STATUS_OK, ident, 1,
3612 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
3613 packet->data, packet->len, FALSE);
3614 silc_buffer_free(packet);
3617 silc_server_command_free(cmd);
3620 /* Checks that client has rights to add or remove channel modes. If any
3621 of the checks fails FALSE is returned. */
3623 int silc_server_check_cmode_rights(SilcChannelEntry channel,
3624 SilcChannelClientEntry client,
3627 int is_op = client->mode & SILC_CHANNEL_UMODE_CHANOP;
3628 int is_fo = client->mode & SILC_CHANNEL_UMODE_CHANFO;
3630 /* Check whether has rights to change anything */
3631 if (!is_op && !is_fo)
3634 /* Check whether has rights to change everything */
3638 /* We know that client is channel operator, check that they are not
3639 changing anything that requires channel founder rights. Rest of the
3640 modes are available automatically for channel operator. */
3642 if (mode & SILC_CHANNEL_MODE_PRIVKEY) {
3643 if (is_op && !is_fo)
3646 if (channel->mode & SILC_CHANNEL_MODE_PRIVKEY) {
3647 if (is_op && !is_fo)
3652 if (mode & SILC_CHANNEL_MODE_PASSPHRASE) {
3653 if (is_op && !is_fo)
3656 if (channel->mode & SILC_CHANNEL_MODE_PASSPHRASE) {
3657 if (is_op && !is_fo)
3662 if (mode & SILC_CHANNEL_MODE_CIPHER) {
3663 if (is_op && !is_fo)
3666 if (channel->mode & SILC_CHANNEL_MODE_CIPHER) {
3667 if (is_op && !is_fo)
3672 if (mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
3673 if (is_op && !is_fo)
3676 if (channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
3677 if (is_op && !is_fo)
3685 /* Server side command of CMODE. Changes channel mode */
3687 SILC_SERVER_CMD_FUNC(cmode)
3689 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
3690 SilcServer server = cmd->server;
3691 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
3692 SilcIDListData idata = (SilcIDListData)client;
3693 SilcChannelID *channel_id;
3694 SilcChannelEntry channel;
3695 SilcChannelClientEntry chl;
3696 SilcBuffer packet, cidp;
3697 unsigned char *tmp, *tmp_id, *tmp_mask;
3698 char *cipher = NULL, *hmac = NULL;
3699 uint32 mode_mask, tmp_len, tmp_len2;
3700 uint16 ident = silc_command_get_ident(cmd->payload);
3702 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_CMODE, cmd, 2, 7);
3704 /* Get Channel ID */
3705 tmp_id = silc_argument_get_arg_type(cmd->args, 1, &tmp_len2);
3707 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3708 SILC_STATUS_ERR_NO_CHANNEL_ID);
3711 channel_id = silc_id_payload_parse_id(tmp_id, tmp_len2);
3713 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3714 SILC_STATUS_ERR_NO_CHANNEL_ID);
3718 /* Get the channel mode mask */
3719 tmp_mask = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
3721 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3722 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3725 SILC_GET32_MSB(mode_mask, tmp_mask);
3727 /* Get channel entry */
3728 channel = silc_idlist_find_channel_by_id(server->local_list,
3731 channel = silc_idlist_find_channel_by_id(server->global_list,
3734 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3735 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
3740 /* Check whether this client is on the channel */
3741 if (!silc_server_client_on_channel(client, channel)) {
3742 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3743 SILC_STATUS_ERR_NOT_ON_CHANNEL);
3747 /* Get entry to the channel user list */
3748 silc_hash_table_find(channel->user_list, client, NULL, (void *)&chl);
3750 /* Check that client has rights to change any requested channel modes */
3751 if (!silc_server_check_cmode_rights(channel, chl, mode_mask)) {
3752 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3753 SILC_STATUS_ERR_NO_CHANNEL_PRIV);
3758 * Check the modes. Modes that requires nothing special operation are
3762 if (mode_mask & SILC_CHANNEL_MODE_PRIVKEY) {
3763 /* Channel uses private keys to protect traffic. Client(s) has set the
3764 key locally they want to use, server does not know that key. */
3765 /* Nothing interesting to do here */
3767 if (channel->mode & SILC_CHANNEL_MODE_PRIVKEY) {
3768 /* The mode is removed and we need to generate and distribute
3769 new channel key. Clients are not using private channel keys
3770 anymore after this. */
3772 /* Re-generate channel key */
3773 if (!silc_server_create_channel_key(server, channel, 0))
3776 /* Send the channel key. This sends it to our local clients and if
3777 we are normal server to our router as well. */
3778 silc_server_send_channel_key(server, NULL, channel,
3779 server->server_type == SILC_ROUTER ?
3780 FALSE : !server->standalone);
3782 cipher = channel->channel_key->cipher->name;
3783 hmac = channel->hmac->hmac->name;
3787 if (mode_mask & SILC_CHANNEL_MODE_ULIMIT) {
3788 /* User limit is set on channel */
3791 /* Get user limit */
3792 tmp = silc_argument_get_arg_type(cmd->args, 3, NULL);
3794 if (!(channel->mode & SILC_CHANNEL_MODE_ULIMIT)) {
3795 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3796 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3800 SILC_GET32_MSB(user_limit, tmp);
3801 channel->user_limit = user_limit;
3804 if (channel->mode & SILC_CHANNEL_MODE_ULIMIT)
3805 /* User limit mode is unset. Remove user limit */
3806 channel->user_limit = 0;
3809 if (mode_mask & SILC_CHANNEL_MODE_PASSPHRASE) {
3810 if (!(channel->mode & SILC_CHANNEL_MODE_PASSPHRASE)) {
3811 /* Passphrase has been set to channel */
3813 /* Get the passphrase */
3814 tmp = silc_argument_get_arg_type(cmd->args, 4, NULL);
3816 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3817 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3821 /* Save the passphrase */
3822 channel->passphrase = strdup(tmp);
3825 if (channel->mode & SILC_CHANNEL_MODE_PASSPHRASE) {
3826 /* Passphrase mode is unset. remove the passphrase */
3827 if (channel->passphrase) {
3828 silc_free(channel->passphrase);
3829 channel->passphrase = NULL;
3834 if (mode_mask & SILC_CHANNEL_MODE_CIPHER) {
3835 if (!(channel->mode & SILC_CHANNEL_MODE_CIPHER)) {
3836 /* Cipher to use protect the traffic */
3839 cipher = silc_argument_get_arg_type(cmd->args, 5, NULL);
3841 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3842 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3846 /* Delete old cipher and allocate the new one */
3847 silc_cipher_free(channel->channel_key);
3848 if (!silc_cipher_alloc(cipher, &channel->channel_key)) {
3849 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3850 SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
3854 /* Re-generate channel key */
3855 if (!silc_server_create_channel_key(server, channel, 0))
3858 /* Send the channel key. This sends it to our local clients and if
3859 we are normal server to our router as well. */
3860 silc_server_send_channel_key(server, NULL, channel,
3861 server->server_type == SILC_ROUTER ?
3862 FALSE : !server->standalone);
3865 if (channel->mode & SILC_CHANNEL_MODE_CIPHER) {
3866 /* Cipher mode is unset. Remove the cipher and revert back to
3868 cipher = channel->cipher;
3870 /* Delete old cipher and allocate default one */
3871 silc_cipher_free(channel->channel_key);
3872 if (!silc_cipher_alloc(cipher ? cipher : SILC_DEFAULT_CIPHER,
3873 &channel->channel_key)) {
3874 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3875 SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
3879 /* Re-generate channel key */
3880 if (!silc_server_create_channel_key(server, channel, 0))
3883 /* Send the channel key. This sends it to our local clients and if
3884 we are normal server to our router as well. */
3885 silc_server_send_channel_key(server, NULL, channel,
3886 server->server_type == SILC_ROUTER ?
3887 FALSE : !server->standalone);
3891 if (mode_mask & SILC_CHANNEL_MODE_HMAC) {
3892 if (!(channel->mode & SILC_CHANNEL_MODE_HMAC)) {
3893 /* HMAC to use protect the traffic */
3894 unsigned char hash[32];
3897 hmac = silc_argument_get_arg_type(cmd->args, 6, NULL);
3899 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3900 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3904 /* Delete old hmac and allocate the new one */
3905 silc_hmac_free(channel->hmac);
3906 if (!silc_hmac_alloc(hmac, NULL, &channel->hmac)) {
3907 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3908 SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
3912 /* Set the HMAC key out of current channel key. The client must do
3914 silc_hash_make(channel->hmac->hash, channel->key, channel->key_len / 8,
3916 silc_hmac_set_key(channel->hmac, hash,
3917 silc_hash_len(channel->hmac->hash));
3918 memset(hash, 0, sizeof(hash));
3921 if (channel->mode & SILC_CHANNEL_MODE_HMAC) {
3922 /* Hmac mode is unset. Remove the hmac and revert back to
3924 unsigned char hash[32];
3925 hmac = channel->hmac_name;
3927 /* Delete old hmac and allocate default one */
3928 silc_hmac_free(channel->hmac);
3929 if (!silc_hmac_alloc(hmac ? hmac : SILC_DEFAULT_HMAC, NULL,
3931 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3932 SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
3936 /* Set the HMAC key out of current channel key. The client must do
3938 silc_hash_make(channel->hmac->hash, channel->key, channel->key_len / 8,
3940 silc_hmac_set_key(channel->hmac, hash,
3941 silc_hash_len(channel->hmac->hash));
3942 memset(hash, 0, sizeof(hash));
3946 if (mode_mask & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
3947 if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
3948 if (!(channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH)) {
3949 /* Set the founder authentication */
3950 SilcAuthPayload auth;
3952 tmp = silc_argument_get_arg_type(cmd->args, 7, &tmp_len);
3954 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3955 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3959 auth = silc_auth_payload_parse(tmp, tmp_len);
3961 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3962 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
3966 /* Save the public key */
3967 tmp = silc_pkcs_public_key_encode(idata->public_key, &tmp_len);
3968 silc_pkcs_public_key_decode(tmp, tmp_len, &channel->founder_key);
3971 channel->founder_method = silc_auth_get_method(auth);
3973 if (channel->founder_method == SILC_AUTH_PASSWORD) {
3974 tmp = silc_auth_get_data(auth, &tmp_len);
3975 channel->founder_passwd =
3976 silc_calloc(tmp_len + 1, sizeof(*channel->founder_passwd));
3977 memcpy(channel->founder_passwd, tmp, tmp_len);
3978 channel->founder_passwd_len = tmp_len;
3980 /* Verify the payload before setting the mode */
3981 if (!silc_auth_verify(auth, channel->founder_method,
3982 channel->founder_key, 0, idata->hash,
3983 client->id, SILC_ID_CLIENT)) {
3984 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CMODE,
3985 SILC_STATUS_ERR_AUTH_FAILED);
3990 silc_auth_payload_free(auth);
3994 if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
3995 if (channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) {
3996 if (channel->founder_key)
3997 silc_pkcs_public_key_free(channel->founder_key);
3998 if (channel->founder_passwd) {
3999 silc_free(channel->founder_passwd);
4000 channel->founder_passwd = NULL;
4006 /* Finally, set the mode */
4007 channel->mode = mode_mask;
4009 /* Send CMODE_CHANGE notify */
4010 cidp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
4011 silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
4012 SILC_NOTIFY_TYPE_CMODE_CHANGE, 4,
4013 cidp->data, cidp->len,
4015 cipher, cipher ? strlen(cipher) : 0,
4016 hmac, hmac ? strlen(hmac) : 0);
4018 /* Set CMODE notify type to network */
4019 if (!server->standalone)
4020 silc_server_send_notify_cmode(server, server->router->connection,
4021 server->server_type == SILC_ROUTER ?
4022 TRUE : FALSE, channel,
4023 mode_mask, client->id, SILC_ID_CLIENT,
4026 /* Send command reply to sender */
4027 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CMODE,
4028 SILC_STATUS_OK, ident, 2,
4029 2, tmp_id, tmp_len2,
4031 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
4032 packet->data, packet->len, FALSE);
4034 silc_buffer_free(packet);
4035 silc_free(channel_id);
4039 silc_server_command_free(cmd);
4042 /* Server side of CUMODE command. Changes client's mode on a channel. */
4044 SILC_SERVER_CMD_FUNC(cumode)
4046 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4047 SilcServer server = cmd->server;
4048 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4049 SilcIDListData idata = (SilcIDListData)client;
4050 SilcChannelID *channel_id;
4051 SilcClientID *client_id;
4052 SilcChannelEntry channel;
4053 SilcClientEntry target_client;
4054 SilcChannelClientEntry chl;
4055 SilcBuffer packet, idp;
4056 unsigned char *tmp_id, *tmp_ch_id, *tmp_mask;
4057 uint32 target_mask, sender_mask = 0, tmp_len, tmp_ch_len;
4059 uint16 ident = silc_command_get_ident(cmd->payload);
4061 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_CUMODE, cmd, 3, 4);
4063 /* Get Channel ID */
4064 tmp_ch_id = silc_argument_get_arg_type(cmd->args, 1, &tmp_ch_len);
4066 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4067 SILC_STATUS_ERR_NO_CHANNEL_ID);
4070 channel_id = silc_id_payload_parse_id(tmp_ch_id, tmp_ch_len);
4072 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4073 SILC_STATUS_ERR_NO_CHANNEL_ID);
4077 /* Get channel entry */
4078 channel = silc_idlist_find_channel_by_id(server->local_list,
4081 channel = silc_idlist_find_channel_by_id(server->global_list,
4084 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4085 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
4090 /* Check whether sender is on the channel */
4091 if (!silc_server_client_on_channel(client, channel)) {
4092 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4093 SILC_STATUS_ERR_NOT_ON_CHANNEL);
4097 /* Check that client has rights to change other's rights */
4098 silc_hash_table_find(channel->user_list, client, NULL, (void *)&chl);
4099 sender_mask = chl->mode;
4101 /* Get the target client's channel mode mask */
4102 tmp_mask = silc_argument_get_arg_type(cmd->args, 2, NULL);
4104 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4105 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
4108 SILC_GET32_MSB(target_mask, tmp_mask);
4110 /* Get target Client ID */
4111 tmp_id = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
4113 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4114 SILC_STATUS_ERR_NO_CLIENT_ID);
4117 client_id = silc_id_payload_parse_id(tmp_id, tmp_len);
4119 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4120 SILC_STATUS_ERR_NO_CLIENT_ID);
4124 /* Get target client's entry */
4125 target_client = silc_idlist_find_client_by_id(server->local_list,
4126 client_id, TRUE, NULL);
4127 if (!target_client) {
4128 target_client = silc_idlist_find_client_by_id(server->global_list,
4129 client_id, TRUE, NULL);
4132 if (target_client != client &&
4133 !(sender_mask & SILC_CHANNEL_UMODE_CHANFO) &&
4134 !(sender_mask & SILC_CHANNEL_UMODE_CHANOP)) {
4135 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4136 SILC_STATUS_ERR_NO_CHANNEL_PRIV);
4140 /* Check whether target client is on the channel */
4141 if (target_client != client) {
4142 if (!silc_server_client_on_channel(target_client, channel)) {
4143 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4144 SILC_STATUS_ERR_USER_NOT_ON_CHANNEL);
4148 /* Get entry to the channel user list */
4149 silc_hash_table_find(channel->user_list, target_client, NULL,
4157 /* If the target client is founder, no one else can change their mode
4159 if (chl->mode & SILC_CHANNEL_UMODE_CHANFO && chl->client != target_client) {
4160 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4161 SILC_STATUS_ERR_NOT_YOU);
4165 if (target_mask & SILC_CHANNEL_UMODE_CHANFO) {
4166 if (!(chl->mode & SILC_CHANNEL_UMODE_CHANFO)) {
4167 /* The client tries to claim the founder rights. */
4168 unsigned char *tmp_auth;
4169 uint32 tmp_auth_len, auth_len;
4172 if (target_client != client) {
4173 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4174 SILC_STATUS_ERR_NOT_YOU);
4178 if (!(channel->mode & SILC_CHANNEL_MODE_FOUNDER_AUTH) ||
4179 !channel->founder_key) {
4180 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4181 SILC_STATUS_ERR_NOT_YOU);
4185 tmp_auth = silc_argument_get_arg_type(cmd->args, 4, &tmp_auth_len);
4187 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4188 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
4192 auth = (channel->founder_method == SILC_AUTH_PASSWORD ?
4193 (void *)channel->founder_passwd : (void *)channel->founder_key);
4194 auth_len = (channel->founder_method == SILC_AUTH_PASSWORD ?
4195 channel->founder_passwd_len : 0);
4197 if (!silc_auth_verify_data(tmp_auth, tmp_auth_len,
4198 channel->founder_method, auth, auth_len,
4199 idata->hash, client->id, SILC_ID_CLIENT)) {
4200 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4201 SILC_STATUS_ERR_AUTH_FAILED);
4205 sender_mask = chl->mode |= SILC_CHANNEL_UMODE_CHANFO;
4209 if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
4210 if (target_client == client) {
4211 /* Remove channel founder rights from itself */
4212 chl->mode &= ~SILC_CHANNEL_UMODE_CHANFO;
4215 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4216 SILC_STATUS_ERR_NOT_YOU);
4222 if (target_mask & SILC_CHANNEL_UMODE_CHANOP) {
4223 /* Promote to operator */
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 chl->mode |= SILC_CHANNEL_UMODE_CHANOP;
4236 if (chl->mode & SILC_CHANNEL_UMODE_CHANOP) {
4237 if (!(sender_mask & SILC_CHANNEL_UMODE_CHANOP) &&
4238 !(sender_mask & SILC_CHANNEL_UMODE_CHANFO)) {
4239 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CUMODE,
4240 SILC_STATUS_ERR_NO_CHANNEL_PRIV);
4244 /* Demote to normal user */
4245 chl->mode &= ~SILC_CHANNEL_UMODE_CHANOP;
4250 idp = silc_id_payload_encode(client->id, SILC_ID_CLIENT);
4251 tmp_id = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
4253 /* Send notify to channel, notify only if mode was actually changed. */
4255 silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
4256 SILC_NOTIFY_TYPE_CUMODE_CHANGE, 3,
4257 idp->data, idp->len,
4261 /* Set CUMODE notify type to network */
4262 if (!server->standalone)
4263 silc_server_send_notify_cumode(server, server->router->connection,
4264 server->server_type == SILC_ROUTER ?
4265 TRUE : FALSE, channel,
4266 target_mask, client->id,
4271 /* Send command reply to sender */
4272 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_CUMODE,
4273 SILC_STATUS_OK, ident, 3,
4275 3, tmp_ch_id, tmp_ch_len,
4276 4, tmp_id, tmp_len);
4277 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
4278 packet->data, packet->len, FALSE);
4280 silc_buffer_free(packet);
4281 silc_free(channel_id);
4282 silc_free(client_id);
4283 silc_buffer_free(idp);
4286 silc_server_command_free(cmd);
4289 /* Server side of KICK command. Kicks client out of channel. */
4291 SILC_SERVER_CMD_FUNC(kick)
4293 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4294 SilcServer server = cmd->server;
4295 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4296 SilcClientEntry target_client;
4297 SilcChannelID *channel_id;
4298 SilcClientID *client_id;
4299 SilcChannelEntry channel;
4300 SilcChannelClientEntry chl;
4303 unsigned char *tmp, *comment;
4305 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_LEAVE, cmd, 1, 3);
4307 /* Get Channel ID */
4308 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
4310 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4311 SILC_STATUS_ERR_NO_CHANNEL_ID);
4314 channel_id = silc_id_payload_parse_id(tmp, tmp_len);
4316 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4317 SILC_STATUS_ERR_NO_CHANNEL_ID);
4321 /* Get channel entry */
4322 channel = silc_idlist_find_channel_by_id(server->local_list,
4325 channel = silc_idlist_find_channel_by_id(server->local_list,
4328 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4329 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
4334 /* Check whether sender is on the channel */
4335 if (!silc_server_client_on_channel(client, channel)) {
4336 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4337 SILC_STATUS_ERR_NOT_ON_CHANNEL);
4341 /* Check that the kicker is channel operator or channel founder */
4342 silc_hash_table_find(channel->user_list, client, NULL, (void *)&chl);
4343 if (chl->mode == SILC_CHANNEL_UMODE_NONE) {
4344 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4345 SILC_STATUS_ERR_NO_CHANNEL_PRIV);
4349 /* Get target Client ID */
4350 tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
4352 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4353 SILC_STATUS_ERR_NO_CLIENT_ID);
4356 client_id = silc_id_payload_parse_id(tmp, tmp_len);
4358 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4359 SILC_STATUS_ERR_NO_CLIENT_ID);
4363 /* Get target client's entry */
4364 target_client = silc_idlist_find_client_by_id(server->local_list,
4365 client_id, TRUE, NULL);
4366 if (!target_client) {
4367 target_client = silc_idlist_find_client_by_id(server->global_list,
4368 client_id, TRUE, NULL);
4371 /* Check that the target client is not channel founder. Channel founder
4372 cannot be kicked from the channel. */
4373 silc_hash_table_find(channel->user_list, target_client, NULL, (void *)&chl);
4374 if (chl->mode & SILC_CHANNEL_UMODE_CHANFO) {
4375 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4376 SILC_STATUS_ERR_NO_CHANNEL_FOPRIV);
4380 /* Check whether target client is on the channel */
4381 if (!silc_server_client_on_channel(target_client, channel)) {
4382 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4383 SILC_STATUS_ERR_USER_NOT_ON_CHANNEL);
4389 comment = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
4393 /* Send command reply to sender */
4394 silc_server_command_send_status_reply(cmd, SILC_COMMAND_KICK,
4397 /* Send KICKED notify to local clients on the channel */
4398 idp = silc_id_payload_encode(target_client->id, SILC_ID_CLIENT);
4399 silc_server_send_notify_to_channel(server, NULL, channel, FALSE,
4400 SILC_NOTIFY_TYPE_KICKED,
4402 idp->data, idp->len,
4403 comment, comment ? strlen(comment) : 0);
4404 silc_buffer_free(idp);
4406 /* Remove the client from the channel. If the channel does not exist
4407 after removing the client then the client kicked itself off the channel
4408 and we don't have to send anything after that. */
4409 if (!silc_server_remove_from_one_channel(server, NULL, channel,
4410 target_client, FALSE))
4413 /* Send KICKED notify to primary route */
4414 if (!server->standalone)
4415 silc_server_send_notify_kicked(server, server->router->connection,
4416 server->server_type == SILC_ROUTER ?
4417 TRUE : FALSE, channel,
4418 target_client->id, comment);
4420 if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
4421 /* Re-generate channel key */
4422 if (!silc_server_create_channel_key(server, channel, 0))
4425 /* Send the channel key to the channel. The key of course is not sent
4426 to the client who was kicked off the channel. */
4427 silc_server_send_channel_key(server, target_client->connection, channel,
4428 server->server_type == SILC_ROUTER ?
4429 FALSE : !server->standalone);
4433 silc_server_command_free(cmd);
4436 /* Server side of OPER command. Client uses this comand to obtain server
4437 operator privileges to this server/router. */
4439 SILC_SERVER_CMD_FUNC(oper)
4441 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4442 SilcServer server = cmd->server;
4443 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4444 unsigned char *username, *auth;
4446 SilcServerConfigSectionAdminConnection *admin;
4447 SilcIDListData idata = (SilcIDListData)client;
4449 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_OPER, cmd, 1, 2);
4451 if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
4454 /* Get the username */
4455 username = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
4457 silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
4458 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
4462 /* Get the admin configuration */
4463 admin = silc_server_config_find_admin(server->config, cmd->sock->ip,
4464 username, client->nickname);
4466 admin = silc_server_config_find_admin(server->config, cmd->sock->hostname,
4467 username, client->nickname);
4469 silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
4470 SILC_STATUS_ERR_AUTH_FAILED);
4475 /* Get the authentication payload */
4476 auth = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
4478 silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
4479 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
4483 /* Verify the authentication data */
4484 if (!silc_auth_verify_data(auth, tmp_len, admin->auth_meth,
4485 admin->auth_data, admin->auth_data_len,
4486 idata->hash, client->id, SILC_ID_CLIENT)) {
4487 silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
4488 SILC_STATUS_ERR_AUTH_FAILED);
4492 /* Client is now server operator */
4493 client->mode |= SILC_UMODE_SERVER_OPERATOR;
4495 /* Send UMODE change to primary router */
4496 if (!server->standalone)
4497 silc_server_send_notify_umode(server, server->router->connection, TRUE,
4498 client->id, client->mode);
4500 /* Send reply to the sender */
4501 silc_server_command_send_status_reply(cmd, SILC_COMMAND_OPER,
4505 silc_server_command_free(cmd);
4508 /* Server side of SILCOPER command. Client uses this comand to obtain router
4509 operator privileges to this router. */
4511 SILC_SERVER_CMD_FUNC(silcoper)
4513 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4514 SilcServer server = cmd->server;
4515 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4516 unsigned char *username, *auth;
4518 SilcServerConfigSectionAdminConnection *admin;
4519 SilcIDListData idata = (SilcIDListData)client;
4521 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_SILCOPER, cmd, 1, 2);
4523 if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
4526 if (server->server_type != SILC_ROUTER) {
4527 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
4528 SILC_STATUS_ERR_AUTH_FAILED);
4532 /* Get the username */
4533 username = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
4535 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
4536 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
4540 /* Get the admin configuration */
4541 admin = silc_server_config_find_admin(server->config, cmd->sock->ip,
4542 username, client->nickname);
4544 admin = silc_server_config_find_admin(server->config, cmd->sock->hostname,
4545 username, client->nickname);
4547 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
4548 SILC_STATUS_ERR_AUTH_FAILED);
4553 /* Get the authentication payload */
4554 auth = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
4556 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
4557 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
4561 /* Verify the authentication data */
4562 if (!silc_auth_verify_data(auth, tmp_len, admin->auth_meth,
4563 admin->auth_data, admin->auth_data_len,
4564 idata->hash, client->id, SILC_ID_CLIENT)) {
4565 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
4566 SILC_STATUS_ERR_AUTH_FAILED);
4570 /* Client is now router operator */
4571 client->mode |= SILC_UMODE_ROUTER_OPERATOR;
4573 /* Send UMODE change to primary router */
4574 if (!server->standalone)
4575 silc_server_send_notify_umode(server, server->router->connection, TRUE,
4576 client->id, client->mode);
4578 /* Send reply to the sender */
4579 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SILCOPER,
4583 silc_server_command_free(cmd);
4586 /* Server side command of CONNECT. Connects us to the specified remote
4587 server or router. */
4589 SILC_SERVER_CMD_FUNC(connect)
4591 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4592 SilcServer server = cmd->server;
4593 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4594 unsigned char *tmp, *host;
4596 uint32 port = SILC_PORT;
4598 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_CONNECT, cmd, 1, 2);
4600 if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
4603 /* Check whether client has the permissions. */
4604 if (client->mode == SILC_UMODE_NONE) {
4605 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CONNECT,
4606 SILC_STATUS_ERR_NO_SERVER_PRIV);
4610 if (server->server_type == SILC_ROUTER &&
4611 client->mode & SILC_UMODE_SERVER_OPERATOR) {
4612 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CONNECT,
4613 SILC_STATUS_ERR_NO_ROUTER_PRIV);
4617 /* Get the remote server */
4618 host = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
4620 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CONNECT,
4621 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
4626 tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
4628 SILC_GET32_MSB(port, tmp);
4630 /* Create the connection. It is done with timeout and is async. */
4631 silc_server_create_connection(server, host, port);
4633 /* Send reply to the sender */
4634 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CONNECT,
4638 silc_server_command_free(cmd);
4641 /* Server side of command BAN. This is used to manage the ban list of the
4642 channel. To add clients and remove clients from the ban list. */
4644 SILC_SERVER_CMD_FUNC(ban)
4646 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4647 SilcServer server = cmd->server;
4648 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4650 SilcChannelEntry channel;
4651 SilcChannelClientEntry chl;
4652 SilcChannelID *channel_id = NULL;
4653 unsigned char *id, *add, *del;
4654 uint32 id_len, tmp_len;
4655 uint16 ident = silc_command_get_ident(cmd->payload);
4657 if (cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
4660 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_BAN, cmd, 0, 3);
4662 /* Get Channel ID */
4663 id = silc_argument_get_arg_type(cmd->args, 1, &id_len);
4665 channel_id = silc_id_payload_parse_id(id, id_len);
4667 silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
4668 SILC_STATUS_ERR_NO_CHANNEL_ID);
4673 /* Get channel entry. The server must know about the channel since the
4674 client is expected to be on the channel. */
4675 channel = silc_idlist_find_channel_by_id(server->local_list,
4678 channel = silc_idlist_find_channel_by_id(server->global_list,
4681 silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
4682 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
4687 /* Check whether this client is on the channel */
4688 if (!silc_server_client_on_channel(client, channel)) {
4689 silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
4690 SILC_STATUS_ERR_NOT_ON_CHANNEL);
4694 /* Get entry to the channel user list */
4695 silc_hash_table_find(channel->user_list, client, NULL, (void *)&chl);
4697 /* The client must be at least channel operator. */
4698 if (!(chl->mode & SILC_CHANNEL_UMODE_CHANOP)) {
4699 silc_server_command_send_status_reply(cmd, SILC_COMMAND_BAN,
4700 SILC_STATUS_ERR_NO_CHANNEL_PRIV);
4704 /* Get the new ban and add it to the ban list */
4705 add = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
4707 if (!channel->ban_list)
4708 channel->ban_list = silc_calloc(tmp_len + 2, sizeof(*channel->ban_list));
4710 channel->ban_list = silc_realloc(channel->ban_list,
4711 sizeof(*channel->ban_list) *
4713 strlen(channel->ban_list) + 2));
4714 if (add[tmp_len - 1] == ',')
4715 add[tmp_len - 1] = '\0';
4717 strncat(channel->ban_list, add, tmp_len);
4718 strncat(channel->ban_list, ",", 1);
4721 /* Get the ban to be removed and remove it from the list */
4722 del = silc_argument_get_arg_type(cmd->args, 3, &tmp_len);
4723 if (del && channel->ban_list) {
4724 char *start, *end, *n;
4726 if (!strncmp(channel->ban_list, del, strlen(channel->ban_list) - 1)) {
4727 silc_free(channel->ban_list);
4728 channel->ban_list = NULL;
4730 start = strstr(channel->ban_list, del);
4731 if (start && strlen(start) >= tmp_len) {
4732 end = start + tmp_len;
4733 n = silc_calloc(strlen(channel->ban_list) - tmp_len, sizeof(*n));
4734 strncat(n, channel->ban_list, start - channel->ban_list);
4735 strncat(n, end + 1, ((channel->ban_list + strlen(channel->ban_list)) -
4737 silc_free(channel->ban_list);
4738 channel->ban_list = n;
4743 /* Send the BAN notify type to our primary router. */
4744 if (!server->standalone && (add || del))
4745 silc_server_send_notify_ban(server, server->router->connection,
4746 server->server_type == SILC_ROUTER ?
4747 TRUE : FALSE, channel, add, del);
4749 /* Send the reply back to the client */
4750 if (channel->ban_list)
4752 silc_command_reply_payload_encode_va(SILC_COMMAND_BAN,
4753 SILC_STATUS_OK, ident, 2,
4755 3, channel->ban_list,
4756 strlen(channel->ban_list) - 1);
4759 silc_command_reply_payload_encode_va(SILC_COMMAND_BAN,
4760 SILC_STATUS_OK, ident, 1,
4763 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
4764 packet->data, packet->len, FALSE);
4766 silc_buffer_free(packet);
4769 silc_free(channel_id);
4770 silc_server_command_free(cmd);
4773 /* Server side command of CLOSE. Closes connection to a specified server. */
4775 SILC_SERVER_CMD_FUNC(close)
4777 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4778 SilcServer server = cmd->server;
4779 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4780 SilcServerEntry server_entry;
4781 SilcSocketConnection sock;
4784 unsigned char *name;
4785 uint32 port = SILC_PORT;
4787 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_CLOSE, cmd, 1, 2);
4789 if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
4792 /* Check whether client has the permissions. */
4793 if (client->mode == SILC_UMODE_NONE) {
4794 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
4795 SILC_STATUS_ERR_NO_SERVER_PRIV);
4799 /* Get the remote server */
4800 name = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
4802 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
4803 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
4808 tmp = silc_argument_get_arg_type(cmd->args, 2, &tmp_len);
4810 SILC_GET32_MSB(port, tmp);
4812 server_entry = silc_idlist_find_server_by_conn(server->local_list,
4813 name, port, FALSE, NULL);
4814 if (!server_entry) {
4815 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
4816 SILC_STATUS_ERR_NO_SERVER_ID);
4820 /* Send reply to the sender */
4821 silc_server_command_send_status_reply(cmd, SILC_COMMAND_CLOSE,
4824 /* Close the connection to the server */
4825 sock = (SilcSocketConnection)server_entry->connection;
4827 /* If we shutdown primary router connection manually then don't trigger
4828 any reconnect or backup router connections, by setting the router
4830 if (server->router == server_entry) {
4831 server->id_entry->router = NULL;
4832 server->router = NULL;
4833 server->standalone = TRUE;
4835 silc_server_free_sock_user_data(server, sock);
4836 silc_server_close_connection(server, sock);
4839 silc_server_command_free(cmd);
4842 /* Server side command of SHUTDOWN. Shutdowns the server and closes all
4843 active connections. */
4845 SILC_SERVER_CMD_FUNC(shutdown)
4847 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4848 SilcServer server = cmd->server;
4849 SilcClientEntry client = (SilcClientEntry)cmd->sock->user_data;
4851 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_SHUTDOWN, cmd, 0, 0);
4853 if (!client || cmd->sock->type != SILC_SOCKET_TYPE_CLIENT)
4856 /* Check whether client has the permission. */
4857 if (client->mode == SILC_UMODE_NONE) {
4858 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SHUTDOWN,
4859 SILC_STATUS_ERR_NO_SERVER_PRIV);
4863 /* Send reply to the sender */
4864 silc_server_command_send_status_reply(cmd, SILC_COMMAND_SHUTDOWN,
4867 /* Then, gracefully, or not, bring the server down. */
4868 silc_server_stop(server);
4872 silc_server_command_free(cmd);
4875 /* Server side command of LEAVE. Removes client from a channel. */
4877 SILC_SERVER_CMD_FUNC(leave)
4879 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4880 SilcServer server = cmd->server;
4881 SilcSocketConnection sock = cmd->sock;
4882 SilcClientEntry id_entry = (SilcClientEntry)cmd->sock->user_data;
4883 SilcChannelID *id = NULL;
4884 SilcChannelEntry channel;
4888 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_LEAVE, cmd, 1, 2);
4890 /* Get Channel ID */
4891 tmp = silc_argument_get_arg_type(cmd->args, 1, &len);
4893 silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
4894 SILC_STATUS_ERR_NO_CHANNEL_ID);
4897 id = silc_id_payload_parse_id(tmp, len);
4899 silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
4900 SILC_STATUS_ERR_NO_CHANNEL_ID);
4904 /* Get channel entry */
4905 channel = silc_idlist_find_channel_by_id(server->local_list, id, NULL);
4907 channel = silc_idlist_find_channel_by_id(server->global_list, id, NULL);
4909 silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
4910 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
4915 /* Check whether this client is on the channel */
4916 if (!silc_server_client_on_channel(id_entry, channel)) {
4917 silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
4918 SILC_STATUS_ERR_NOT_ON_CHANNEL);
4922 /* Notify routers that they should remove this client from their list
4923 of clients on the channel. Send LEAVE notify type. */
4924 if (!server->standalone)
4925 silc_server_send_notify_leave(server, server->router->connection,
4926 server->server_type == SILC_ROUTER ?
4927 TRUE : FALSE, channel, id_entry->id);
4929 silc_server_command_send_status_reply(cmd, SILC_COMMAND_LEAVE,
4932 /* Remove client from channel */
4933 if (!silc_server_remove_from_one_channel(server, sock, channel, id_entry,
4935 /* If the channel does not exist anymore we won't send anything */
4938 if (!(channel->mode & SILC_CHANNEL_MODE_PRIVKEY)) {
4939 /* Re-generate channel key */
4940 if (!silc_server_create_channel_key(server, channel, 0))
4943 /* Send the channel key */
4944 silc_server_send_channel_key(server, NULL, channel,
4945 server->server_type == SILC_ROUTER ?
4946 FALSE : !server->standalone);
4951 silc_server_command_free(cmd);
4954 /* Server side of command USERS. Resolves clients and their USERS currently
4955 joined on the requested channel. The list of Client ID's and their modes
4956 on the channel is sent back. */
4958 SILC_SERVER_CMD_FUNC(users)
4960 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
4961 SilcServer server = cmd->server;
4962 SilcChannelEntry channel;
4963 SilcChannelID *id = NULL;
4964 SilcBuffer packet, idp;
4965 unsigned char *channel_id;
4966 uint32 channel_id_len;
4967 SilcBuffer client_id_list;
4968 SilcBuffer client_mode_list;
4969 unsigned char lc[4];
4970 uint32 list_count = 0;
4971 uint16 ident = silc_command_get_ident(cmd->payload);
4974 SILC_SERVER_COMMAND_CHECK(SILC_COMMAND_USERS, cmd, 1, 2);
4976 /* Get Channel ID */
4977 channel_id = silc_argument_get_arg_type(cmd->args, 1, &channel_id_len);
4979 /* Get channel name */
4980 channel_name = silc_argument_get_arg_type(cmd->args, 2, NULL);
4982 if (!channel_id && !channel_name) {
4983 silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
4984 SILC_STATUS_ERR_NO_CHANNEL_ID);
4989 id = silc_id_payload_parse_id(channel_id, channel_id_len);
4991 silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
4992 SILC_STATUS_ERR_NO_CHANNEL_ID);
4997 /* If we are server and we don't know about this channel we will send
4998 the command to our router. If we know about the channel then we also
4999 have the list of users already. */
5001 channel = silc_idlist_find_channel_by_id(server->local_list, id, NULL);
5003 channel = silc_idlist_find_channel_by_name(server->local_list,
5004 channel_name, NULL);
5007 if (server->server_type != SILC_ROUTER && !server->standalone &&
5011 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
5012 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
5014 /* Send USERS command */
5015 silc_server_packet_send(server, server->router->connection,
5016 SILC_PACKET_COMMAND, cmd->packet->flags,
5017 tmpbuf->data, tmpbuf->len, TRUE);
5019 /* Reprocess this packet after received reply */
5020 silc_server_command_pending(server, SILC_COMMAND_USERS,
5021 silc_command_get_ident(cmd->payload),
5022 silc_server_command_destructor,
5023 silc_server_command_users,
5024 silc_server_command_dup(cmd));
5025 cmd->pending = TRUE;
5026 silc_command_set_ident(cmd->payload, ident);
5028 silc_buffer_free(tmpbuf);
5033 /* Check the global list as well. */
5035 channel = silc_idlist_find_channel_by_id(server->global_list, id, NULL);
5037 channel = silc_idlist_find_channel_by_name(server->global_list,
5038 channel_name, NULL);
5040 /* Channel really does not exist */
5041 silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
5042 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
5047 /* If the channel is private or secret do not send anything, unless the
5048 user requesting this command is on the channel. */
5049 if (cmd->sock->type == SILC_SOCKET_TYPE_CLIENT) {
5050 if (channel->mode & (SILC_CHANNEL_MODE_PRIVATE | SILC_CHANNEL_MODE_SECRET)
5051 && !silc_server_client_on_channel(cmd->sock->user_data, channel)) {
5052 silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
5053 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
5058 (SILC_CHANNEL_MODE_PRIVATE | SILC_CHANNEL_MODE_SECRET)) {
5059 silc_server_command_send_status_reply(cmd, SILC_COMMAND_USERS,
5060 SILC_STATUS_ERR_NO_SUCH_CHANNEL);
5065 /* Get the users list */
5066 silc_server_get_users_on_channel(server, channel, &client_id_list,
5067 &client_mode_list, &list_count);
5070 SILC_PUT32_MSB(list_count, lc);
5073 idp = silc_id_payload_encode(channel->id, SILC_ID_CHANNEL);
5074 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_USERS,
5075 SILC_STATUS_OK, ident, 4,
5076 2, idp->data, idp->len,
5078 4, client_id_list->data,
5079 client_id_list->len,
5080 5, client_mode_list->data,
5081 client_mode_list->len);
5082 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
5083 packet->data, packet->len, FALSE);
5085 silc_buffer_free(idp);
5086 silc_buffer_free(packet);
5087 silc_buffer_free(client_id_list);
5088 silc_buffer_free(client_mode_list);
5092 silc_server_command_free(cmd);
5095 /* Server side of command GETKEY. This fetches the client's public key
5096 from the server where to the client is connected. */
5098 SILC_SERVER_CMD_FUNC(getkey)
5100 SilcServerCommandContext cmd = (SilcServerCommandContext)context;
5101 SilcServer server = cmd->server;
5103 SilcClientEntry client;
5104 SilcServerEntry server_entry;
5105 SilcClientID *client_id = NULL;
5106 SilcServerID *server_id = NULL;
5107 SilcIDPayload idp = NULL;
5108 uint16 ident = silc_command_get_ident(cmd->payload);
5109 unsigned char *tmp, *pkdata;
5110 uint32 tmp_len, pklen;
5111 SilcBuffer pk = NULL;
5114 SILC_LOG_DEBUG(("Start"));
5116 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
5118 silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
5119 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
5122 idp = silc_id_payload_parse_data(tmp, tmp_len);
5124 silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
5125 SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
5129 id_type = silc_id_payload_get_type(idp);
5130 if (id_type == SILC_ID_CLIENT) {
5131 client_id = silc_id_payload_get_id(idp);
5133 /* If the client is not found from local list there is no chance it
5134 would be locally connected client so send the command further. */
5135 client = silc_idlist_find_client_by_id(server->local_list,
5136 client_id, TRUE, NULL);
5138 client = silc_idlist_find_client_by_id(server->global_list,
5139 client_id, TRUE, NULL);
5141 if ((!client && !cmd->pending && !server->standalone) ||
5142 (client && !client->connection && !cmd->pending) ||
5143 (client && !client->data.public_key && !cmd->pending)) {
5146 SilcSocketConnection dest_sock;
5148 dest_sock = silc_server_get_client_route(server, NULL, 0,
5153 old_ident = silc_command_get_ident(cmd->payload);
5154 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
5155 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
5157 silc_server_packet_send(server, dest_sock,
5158 SILC_PACKET_COMMAND, cmd->packet->flags,
5159 tmpbuf->data, tmpbuf->len, TRUE);
5161 /* Reprocess this packet after received reply from router */
5162 silc_server_command_pending(server, SILC_COMMAND_GETKEY,
5163 silc_command_get_ident(cmd->payload),
5164 silc_server_command_destructor,
5165 silc_server_command_getkey,
5166 silc_server_command_dup(cmd));
5167 cmd->pending = TRUE;
5169 silc_command_set_ident(cmd->payload, old_ident);
5170 silc_buffer_free(tmpbuf);
5175 silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
5176 SILC_STATUS_ERR_NO_SUCH_CLIENT_ID);
5180 /* The client is locally connected, just get the public key and
5181 send it back. If they key does not exist then do not send it,
5182 send just OK reply */
5183 if (!client->data.public_key) {
5187 tmp = silc_pkcs_public_key_encode(client->data.public_key, &tmp_len);
5188 pk = silc_buffer_alloc(4 + tmp_len);
5189 silc_buffer_pull_tail(pk, SILC_BUFFER_END(pk));
5190 silc_buffer_format(pk,
5191 SILC_STR_UI_SHORT(tmp_len),
5192 SILC_STR_UI_SHORT(SILC_SKE_PK_TYPE_SILC),
5193 SILC_STR_UI_XNSTRING(tmp, tmp_len),
5199 } else if (id_type == SILC_ID_SERVER) {
5200 server_id = silc_id_payload_get_id(idp);
5202 /* If the server is not found from local list there is no chance it
5203 would be locally connected server so send the command further. */
5204 server_entry = silc_idlist_find_server_by_id(server->local_list,
5205 server_id, TRUE, NULL);
5207 server_entry = silc_idlist_find_server_by_id(server->global_list,
5208 server_id, TRUE, NULL);
5210 if (server_entry != server->id_entry &&
5211 ((!server_entry && !cmd->pending && !server->standalone) ||
5212 (server_entry && !server_entry->connection && !cmd->pending &&
5213 !server->standalone) ||
5214 (server_entry && !server_entry->data.public_key && !cmd->pending &&
5215 !server->standalone))) {
5219 old_ident = silc_command_get_ident(cmd->payload);
5220 silc_command_set_ident(cmd->payload, silc_rng_get_rn16(server->rng));
5221 tmpbuf = silc_command_payload_encode_payload(cmd->payload);
5223 silc_server_packet_send(server, server->router->connection,
5224 SILC_PACKET_COMMAND, cmd->packet->flags,
5225 tmpbuf->data, tmpbuf->len, TRUE);
5227 /* Reprocess this packet after received reply from router */
5228 silc_server_command_pending(server, SILC_COMMAND_GETKEY,
5229 silc_command_get_ident(cmd->payload),
5230 silc_server_command_destructor,
5231 silc_server_command_getkey,
5232 silc_server_command_dup(cmd));
5233 cmd->pending = TRUE;
5235 silc_command_set_ident(cmd->payload, old_ident);
5236 silc_buffer_free(tmpbuf);
5240 if (!server_entry) {
5241 silc_server_command_send_status_reply(cmd, SILC_COMMAND_GETKEY,
5242 SILC_STATUS_ERR_NO_SUCH_SERVER_ID);
5246 /* If they key does not exist then do not send it, send just OK reply */
5247 if (!server_entry->data.public_key) {
5251 tmp = silc_pkcs_public_key_encode(server_entry->data.public_key,
5253 pk = silc_buffer_alloc(4 + tmp_len);
5254 silc_buffer_pull_tail(pk, SILC_BUFFER_END(pk));
5255 silc_buffer_format(pk,
5256 SILC_STR_UI_SHORT(tmp_len),
5257 SILC_STR_UI_SHORT(SILC_SKE_PK_TYPE_SILC),
5258 SILC_STR_UI_XNSTRING(tmp, tmp_len),
5268 tmp = silc_argument_get_arg_type(cmd->args, 1, &tmp_len);
5269 packet = silc_command_reply_payload_encode_va(SILC_COMMAND_GETKEY,
5270 SILC_STATUS_OK, ident,
5274 silc_server_packet_send(server, cmd->sock, SILC_PACKET_COMMAND_REPLY, 0,
5275 packet->data, packet->len, FALSE);
5276 silc_buffer_free(packet);
5279 silc_buffer_free(pk);
5283 silc_id_payload_free(idp);
5284 silc_free(client_id);
5285 silc_free(server_id);
5286 silc_server_command_free(cmd);