2 * charybdis: an advanced ircd.
3 * client.c: Controls clients.
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2005 ircd-ratbox development team
8 * Copyright (C) 2007 William Pitcock
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
25 * $Id: client.c 3514 2007-06-06 16:25:21Z nenolod $
40 #include "s_newconf.h"
53 #include "blacklist.h"
56 #include "irc_dictionary.h"
59 #define DEBUG_EXITED_CLIENTS
61 static void check_pings_list(rb_dlink_list
* list
);
62 static void check_unknowns_list(rb_dlink_list
* list
);
63 static void free_exited_clients(void *unused
);
64 static void exit_aborted_clients(void *unused
);
66 static int exit_remote_client(struct Client
*, struct Client
*, struct Client
*,const char *);
67 static int exit_remote_server(struct Client
*, struct Client
*, struct Client
*,const char *);
68 static int exit_local_client(struct Client
*, struct Client
*, struct Client
*,const char *);
69 static int exit_unknown_client(struct Client
*, struct Client
*, struct Client
*,const char *);
70 static int exit_local_server(struct Client
*, struct Client
*, struct Client
*,const char *);
71 static int qs_server(struct Client
*, struct Client
*, struct Client
*, const char *comment
);
73 static EVH check_pings
;
75 static rb_bh
*client_heap
= NULL
;
76 static rb_bh
*lclient_heap
= NULL
;
77 static rb_bh
*pclient_heap
= NULL
;
78 static rb_bh
*user_heap
= NULL
;
79 static rb_bh
*away_heap
= NULL
;
80 static char current_uid
[IDLEN
];
82 struct Dictionary
*nd_dict
= NULL
;
90 rb_dlink_list dead_list
;
91 #ifdef DEBUG_EXITED_CLIENTS
92 static rb_dlink_list dead_remote_list
;
98 struct Client
*client
;
99 char notice
[REASONLEN
];
102 static rb_dlink_list abort_list
;
110 * side effects - initialize client free memory
116 * start off the check ping event .. -- adrian
117 * Every 30 seconds is plenty -- db
119 client_heap
= rb_bh_create(sizeof(struct Client
), CLIENT_HEAP_SIZE
, "client_heap");
120 lclient_heap
= rb_bh_create(sizeof(struct LocalUser
), LCLIENT_HEAP_SIZE
, "lclient_heap");
121 pclient_heap
= rb_bh_create(sizeof(struct PreClient
), PCLIENT_HEAP_SIZE
, "pclient_heap");
122 user_heap
= rb_bh_create(sizeof(struct User
), USER_HEAP_SIZE
, "user_heap");
123 away_heap
= rb_bh_create(AWAYLEN
, AWAY_HEAP_SIZE
, "away_heap");
125 rb_event_addish("check_pings", check_pings
, NULL
, 30);
126 rb_event_addish("free_exited_clients", &free_exited_clients
, NULL
, 4);
127 rb_event_addish("exit_aborted_clients", exit_aborted_clients
, NULL
, 1);
128 rb_event_add("flood_recalc", flood_recalc
, NULL
, 1);
130 nd_dict
= irc_dictionary_create(irccmp
);
135 * make_client - create a new Client struct and set it to initial state.
137 * from == NULL, create local client (a client connected
140 * from, create remote client (behind a socket
141 * associated with the client defined by
142 * 'from'). ('from' is a local client!!).
145 make_client(struct Client
*from
)
147 struct Client
*client_p
= NULL
;
148 struct LocalUser
*localClient
;
150 client_p
= rb_bh_alloc(client_heap
);
154 client_p
->from
= client_p
; /* 'from' of local client is self! */
156 localClient
= rb_bh_alloc(lclient_heap
);
157 SetMyConnect(client_p
);
158 client_p
->localClient
= localClient
;
160 client_p
->localClient
->lasttime
= client_p
->localClient
->firsttime
= rb_current_time();
162 client_p
->localClient
->F
= NULL
;
164 client_p
->preClient
= rb_bh_alloc(pclient_heap
);;
166 /* as good a place as any... */
167 rb_dlinkAdd(client_p
, &client_p
->localClient
->tnode
, &unknown_list
);
170 { /* from is not NULL */
171 client_p
->localClient
= NULL
;
172 client_p
->preClient
= NULL
;
173 client_p
->from
= from
; /* 'from' of local client is self! */
176 SetUnknown(client_p
);
177 strcpy(client_p
->username
, "unknown");
183 free_pre_client(struct Client
*client_p
)
185 struct Blacklist
*blptr
;
187 s_assert(NULL
!= client_p
);
189 if(client_p
->preClient
== NULL
)
192 blptr
= client_p
->preClient
->dnsbl_listed
;
194 unref_blacklist(blptr
);
195 abort_blacklist_queries(client_p
);
196 rb_bh_free(pclient_heap
, client_p
->preClient
);
197 client_p
->preClient
= NULL
;
201 free_local_client(struct Client
*client_p
)
203 s_assert(NULL
!= client_p
);
204 s_assert(&me
!= client_p
);
206 if(client_p
->localClient
== NULL
)
210 * clean up extra sockets from P-lines which have been discarded.
212 if(client_p
->localClient
->listener
)
214 s_assert(0 < client_p
->localClient
->listener
->ref_count
);
215 if(0 == --client_p
->localClient
->listener
->ref_count
216 && !client_p
->localClient
->listener
->active
)
217 free_listener(client_p
->localClient
->listener
);
218 client_p
->localClient
->listener
= 0;
221 if(client_p
->localClient
->F
!= NULL
)
223 del_from_cli_fd_hash(client_p
);
224 rb_close(client_p
->localClient
->F
);
227 if(client_p
->localClient
->passwd
)
229 memset(client_p
->localClient
->passwd
, 0,
230 strlen(client_p
->localClient
->passwd
));
231 rb_free(client_p
->localClient
->passwd
);
234 rb_free(client_p
->localClient
->auth_user
);
236 if(client_p
->localClient
->override_timeout_event
)
238 rb_event_delete(client_p
->localClient
->override_timeout_event
);
241 rb_free(client_p
->localClient
->challenge
);
242 rb_free(client_p
->localClient
->fullcaps
);
243 rb_free(client_p
->localClient
->opername
);
244 rb_free(client_p
->localClient
->mangledhost
);
245 if (client_p
->localClient
->privset
)
246 privilegeset_unref(client_p
->localClient
->privset
);
249 ssld_decrement_clicount(client_p
->localClient
->ssl_ctl
);
251 if(IsCapable(client_p
, CAP_ZIP
))
252 ssld_decrement_clicount(client_p
->localClient
->z_ctl
);
254 rb_bh_free(lclient_heap
, client_p
->localClient
);
255 client_p
->localClient
= NULL
;
259 free_client(struct Client
*client_p
)
261 s_assert(NULL
!= client_p
);
262 s_assert(&me
!= client_p
);
263 free_local_client(client_p
);
264 free_pre_client(client_p
);
265 rb_free(client_p
->certfp
);
266 rb_bh_free(client_heap
, client_p
);
270 * check_pings - go through the local client list and check activity
271 * kill off stuff that should die
273 * inputs - NOT USED (from event)
274 * output - next time_t when check_pings() should be called again
278 * A PING can be sent to clients as necessary.
280 * Client/Server ping outs are handled.
284 * Addon from adrian. We used to call this after nextping seconds,
285 * however I've changed it to run once a second. This is only for
286 * PING timeouts, not K/etc-line checks (thanks dianora!). Having it
287 * run once a second makes life a lot easier - when a new client connects
288 * and they need a ping in 4 seconds, if nextping was set to 20 seconds
289 * we end up waiting 20 seconds. This is stupid. :-)
290 * I will optimise (hah!) check_pings() once I've finished working on
291 * tidying up other network IO evilnesses.
296 check_pings(void *notused
)
298 check_pings_list(&lclient_list
);
299 check_pings_list(&serv_list
);
300 check_unknowns_list(&unknown_list
);
306 * inputs - pointer to list to check
311 check_pings_list(rb_dlink_list
* list
)
313 char scratch
[32]; /* way too generous but... */
314 struct Client
*client_p
; /* current local client_p being examined */
315 int ping
= 0; /* ping time value from client */
316 rb_dlink_node
*ptr
, *next_ptr
;
318 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
320 client_p
= ptr
->data
;
322 if(!MyConnect(client_p
) || IsDead(client_p
))
325 ping
= get_client_ping(client_p
);
327 if(ping
< (rb_current_time() - client_p
->localClient
->lasttime
))
330 * If the client/server hasnt talked to us in 2*ping seconds
331 * and it has a ping time, then close its connection.
333 if(((rb_current_time() - client_p
->localClient
->lasttime
) >= (2 * ping
)
334 && (client_p
->flags
& FLAGS_PINGSENT
)))
336 if(IsServer(client_p
))
338 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
339 "No response from %s, closing link",
342 "No response from %s, closing link",
343 log_client_name(client_p
, HIDE_IP
));
345 (void) rb_snprintf(scratch
, sizeof(scratch
),
346 "Ping timeout: %d seconds",
347 (int) (rb_current_time() - client_p
->localClient
->lasttime
));
349 exit_client(client_p
, client_p
, &me
, scratch
);
352 else if((client_p
->flags
& FLAGS_PINGSENT
) == 0)
355 * if we havent PINGed the connection and we havent
356 * heard from it in a while, PING it to make sure
359 client_p
->flags
|= FLAGS_PINGSENT
;
360 /* not nice but does the job */
361 client_p
->localClient
->lasttime
= rb_current_time() - ping
;
362 sendto_one(client_p
, "PING :%s", me
.name
);
371 * check_unknowns_list
373 * inputs - pointer to list of unknown clients
375 * side effects - unknown clients get marked for termination after n seconds
378 check_unknowns_list(rb_dlink_list
* list
)
380 rb_dlink_node
*ptr
, *next_ptr
;
381 struct Client
*client_p
;
384 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
386 client_p
= ptr
->data
;
388 if(IsDead(client_p
) || IsClosing(client_p
))
391 /* still has DNSbls to validate against */
392 if(client_p
->preClient
!= NULL
&&
393 rb_dlink_list_length(&client_p
->preClient
->dnsbl_queries
) > 0)
397 * Check UNKNOWN connections - if they have been in this state
398 * for > 30s, close them.
401 timeout
= IsAnyServer(client_p
) ? ConfigFileEntry
.connect_timeout
: 30;
402 if((rb_current_time() - client_p
->localClient
->firsttime
) > timeout
)
404 if(IsAnyServer(client_p
))
406 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
407 "No response from %s, closing link",
410 "No response from %s, closing link",
411 log_client_name(client_p
, HIDE_IP
));
413 exit_client(client_p
, client_p
, &me
, "Connection timed out");
419 notify_banned_client(struct Client
*client_p
, struct ConfItem
*aconf
, int ban
)
421 static const char conn_closed
[] = "Connection closed";
422 static const char d_lined
[] = "D-lined";
423 static const char k_lined
[] = "K-lined";
424 const char *reason
= NULL
;
425 const char *exit_reason
= conn_closed
;
427 if(ConfigFileEntry
.kline_with_reason
&& !EmptyString(aconf
->passwd
))
429 reason
= aconf
->passwd
;
430 exit_reason
= aconf
->passwd
;
434 reason
= aconf
->status
== D_LINED
? d_lined
: k_lined
;
437 if(ban
== D_LINED
&& !IsPerson(client_p
))
438 sendto_one(client_p
, "NOTICE DLINE :*** You have been D-lined");
440 sendto_one(client_p
, form_str(ERR_YOUREBANNEDCREEP
),
441 me
.name
, client_p
->name
, reason
);
443 exit_client(client_p
, client_p
, &me
,
444 EmptyString(ConfigFileEntry
.kline_reason
) ? exit_reason
:
445 ConfigFileEntry
.kline_reason
);
452 * side effects - Check all connections for a pending k/dline against the
453 * client, exit the client if found.
456 check_banned_lines(void)
463 /* check_klines_event()
467 * side effects - check_klines() is called, kline_queued unset
470 check_klines_event(void *unused
)
480 * side effects - all clients will be checked for klines
485 struct Client
*client_p
;
486 struct ConfItem
*aconf
;
488 rb_dlink_node
*next_ptr
;
490 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
492 client_p
= ptr
->data
;
494 if(IsMe(client_p
) || !IsPerson(client_p
))
497 if((aconf
= find_kline(client_p
)) != NULL
)
499 if(IsExemptKline(client_p
))
501 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
502 "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
503 get_client_name(client_p
, HIDE_IP
),
504 aconf
->user
, aconf
->host
);
508 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
509 "KLINE active for %s",
510 get_client_name(client_p
, HIDE_IP
));
512 notify_banned_client(client_p
, aconf
, K_LINED
);
522 * side effects - all clients will be checked for dlines
527 struct Client
*client_p
;
528 struct ConfItem
*aconf
;
530 rb_dlink_node
*next_ptr
;
532 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
534 client_p
= ptr
->data
;
539 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
541 if(aconf
->status
& CONF_EXEMPTDLINE
)
544 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
545 "DLINE active for %s",
546 get_client_name(client_p
, HIDE_IP
));
548 notify_banned_client(client_p
, aconf
, D_LINED
);
553 /* dlines need to be checked against unknowns too */
554 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
556 client_p
= ptr
->data
;
558 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
560 if(aconf
->status
& CONF_EXEMPTDLINE
)
563 notify_banned_client(client_p
, aconf
, D_LINED
);
572 * side effects - all clients will be checked for xlines
577 struct Client
*client_p
;
578 struct ConfItem
*aconf
;
580 rb_dlink_node
*next_ptr
;
582 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
584 client_p
= ptr
->data
;
586 if(IsMe(client_p
) || !IsPerson(client_p
))
589 if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
591 if(IsExemptKline(client_p
))
593 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
594 "XLINE over-ruled for %s, client is kline_exempt [%s]",
595 get_client_name(client_p
, HIDE_IP
),
600 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
601 get_client_name(client_p
, HIDE_IP
));
603 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
610 * update_client_exit_stats
612 * input - pointer to client
617 update_client_exit_stats(struct Client
*client_p
)
619 if(IsServer(client_p
))
621 sendto_realops_snomask(SNO_EXTERNAL
, L_ALL
,
622 "Server %s split from %s",
623 client_p
->name
, client_p
->servptr
->name
);
624 if(HasSentEob(client_p
))
627 else if(IsClient(client_p
))
632 if(IsInvisible(client_p
))
636 if(splitchecking
&& !splitmode
)
637 check_splitmode(NULL
);
641 * release_client_state
643 * input - pointer to client to release
648 release_client_state(struct Client
*client_p
)
650 if(client_p
->user
!= NULL
)
652 free_user(client_p
->user
, client_p
); /* try this here */
656 if(client_p
->serv
->user
!= NULL
)
657 free_user(client_p
->serv
->user
, client_p
);
658 if(client_p
->serv
->fullcaps
)
659 rb_free(client_p
->serv
->fullcaps
);
660 rb_free(client_p
->serv
);
665 * remove_client_from_list
666 * inputs - point to client to remove
668 * side effects - taken the code from ExitOneClient() for this
669 * and placed it here. - avalon
672 remove_client_from_list(struct Client
*client_p
)
674 s_assert(NULL
!= client_p
);
679 /* A client made with make_client()
680 * is on the unknown_list until removed.
681 * If it =does= happen to exit before its removed from that list
682 * and its =not= on the global_client_list, it will core here.
683 * short circuit that case now -db
685 if(client_p
->node
.prev
== NULL
&& client_p
->node
.next
== NULL
)
688 rb_dlinkDelete(&client_p
->node
, &global_client_list
);
690 update_client_exit_stats(client_p
);
695 * find_person - find person by (nick)name.
696 * inputs - pointer to name
697 * output - return client pointer
701 find_person(const char *name
)
703 struct Client
*c2ptr
;
705 c2ptr
= find_client(name
);
707 if(c2ptr
&& IsPerson(c2ptr
))
713 find_named_person(const char *name
)
715 struct Client
*c2ptr
;
717 c2ptr
= find_named_client(name
);
719 if(c2ptr
&& IsPerson(c2ptr
))
726 * find_chasing - find the client structure for a nick name (user)
727 * using history mechanism if necessary. If the client is not found,
728 * an error message (NO SUCH NICK) is generated. If the client was found
729 * through the history, chasing will be 1 and otherwise 0.
732 find_chasing(struct Client
*source_p
, const char *user
, int *chasing
)
736 if(MyClient(source_p
))
737 who
= find_named_person(user
);
739 who
= find_person(user
);
744 if(who
|| IsDigit(*user
))
747 if(!(who
= get_history(user
, (long) KILLCHASETIMELIMIT
)))
749 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
750 form_str(ERR_NOSUCHNICK
), user
);
759 * get_client_name - Return the name of the client
760 * for various tracking and
761 * admin purposes. The main purpose of this function is to
762 * return the "socket host" name of the client, if that
763 * differs from the advertised name (other than case).
764 * But, this can be used to any client structure.
767 * Watch out the allocation of "nbuf", if either source_p->name
768 * or source_p->sockhost gets changed into pointers instead of
769 * directly allocated within the structure...
772 * Function return either a pointer to the structure (source_p) or
773 * to internal buffer (nbuf). *NEVER* use the returned pointer
774 * to modify what it points!!!
778 get_client_name(struct Client
*client
, int showip
)
780 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
782 s_assert(NULL
!= client
);
786 if(MyConnect(client
))
788 if(!irccmp(client
->name
, client
->host
))
791 if(ConfigFileEntry
.hide_spoof_ips
&&
792 showip
== SHOW_IP
&& IsIPSpoof(client
))
794 if(IsAnyServer(client
))
797 /* And finally, let's get the host information, ip or name */
801 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
802 client
->name
, client
->username
,
806 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
807 client
->name
, client
->username
);
810 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
811 client
->name
, client
->username
, client
->host
);
816 /* As pointed out by Adel Mezibra
817 * Neph|l|m@EFnet. Was missing a return here.
824 * This version is the same as get_client_name, but doesnt contain the
825 * code that will hide IPs always. This should be used for logfiles.
828 log_client_name(struct Client
*target_p
, int showip
)
830 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
835 if(MyConnect(target_p
))
837 if(irccmp(target_p
->name
, target_p
->host
) == 0)
838 return target_p
->name
;
843 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
844 target_p
->username
, target_p
->sockhost
);
848 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
849 target_p
->name
, target_p
->username
);
852 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
853 target_p
->username
, target_p
->host
);
859 return target_p
->name
;
862 /* is_remote_connect - Returns whether a server was /connect'ed by a remote
863 * oper (send notices netwide) */
865 is_remote_connect(struct Client
*client_p
)
869 if (client_p
->serv
== NULL
)
871 oper
= find_named_person(client_p
->serv
->by
);
872 return oper
!= NULL
&& IsOper(oper
) && !MyConnect(oper
);
876 free_exited_clients(void *unused
)
878 rb_dlink_node
*ptr
, *next
;
879 struct Client
*target_p
;
881 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_list
.head
)
883 target_p
= ptr
->data
;
885 #ifdef DEBUG_EXITED_CLIENTS
887 struct abort_client
*abt
;
891 RB_DLINK_FOREACH(aptr
, abort_list
.head
)
894 if(abt
->client
== target_p
)
897 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
898 "On abort_list: %s stat: %u flags: %u/%u handler: %c",
899 target_p
->name
, (unsigned int) target_p
->status
,
900 target_p
->flags
, target_p
->flags2
, target_p
->handler
);
901 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
902 "Please report this to the charybdis developers!");
909 rb_dlinkDestroy(ptr
, &dead_list
);
915 if(ptr
->data
== NULL
)
917 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
918 "Warning: null client on dead_list!");
919 rb_dlinkDestroy(ptr
, &dead_list
);
922 release_client_state(target_p
);
923 free_client(target_p
);
924 rb_dlinkDestroy(ptr
, &dead_list
);
927 #ifdef DEBUG_EXITED_CLIENTS
928 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_remote_list
.head
)
930 target_p
= ptr
->data
;
932 if(ptr
->data
== NULL
)
934 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
935 "Warning: null client on dead_list!");
936 rb_dlinkDestroy(ptr
, &dead_list
);
939 release_client_state(target_p
);
940 free_client(target_p
);
941 rb_dlinkDestroy(ptr
, &dead_remote_list
);
948 ** Recursively send QUITs and SQUITs for source_p and all its dependent clients
949 ** and servers to those servers that need them. A server needs the client
950 ** QUITs if it can't figure them out from the SQUIT (ie pre-TS4) or if it
951 ** isn't getting the SQUIT because of @#(*&@)# hostmasking. With TS4, once
952 ** a link gets a SQUIT, it doesn't need any QUIT/SQUITs for clients depending
953 ** on that one -orabidoo
956 recurse_send_quits(struct Client
*client_p
, struct Client
*source_p
,
957 struct Client
*to
, const char *comment1
,
960 struct Client
*target_p
;
961 rb_dlink_node
*ptr
, *ptr_next
;
962 /* If this server can handle quit storm (QS) removal
963 * of dependents, just send the SQUIT
966 if(IsCapable(to
, CAP_QS
))
968 sendto_one(to
, "SQUIT %s :%s",
969 get_id(source_p
, to
), comment
);
973 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
975 target_p
= ptr
->data
;
976 sendto_one(to
, ":%s QUIT :%s", target_p
->name
, comment1
);
978 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
980 target_p
= ptr
->data
;
981 recurse_send_quits(client_p
, target_p
, to
, comment1
, comment
);
983 sendto_one(to
, "SQUIT %s :%s", source_p
->name
, comment
);
988 ** Remove all clients that depend on source_p; assumes all (S)QUITs have
989 ** already been sent. we make sure to exit a server's dependent clients
990 ** and servers before the server itself; exit_one_client takes care of
991 ** actually removing things off llists. tweaked from +CSr31 -orabidoo
994 * added sanity test code.... source_p->serv might be NULL...
997 recurse_remove_clients(struct Client
*source_p
, const char *comment
)
999 struct Client
*target_p
;
1000 rb_dlink_node
*ptr
, *ptr_next
;
1005 if(source_p
->serv
== NULL
) /* oooops. uh this is actually a major bug */
1008 /* this is very ugly, but it saves cpu :P */
1009 if(ConfigFileEntry
.nick_delay
> 0)
1011 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1013 target_p
= ptr
->data
;
1014 target_p
->flags
|= FLAGS_KILLED
;
1015 add_nd_entry(target_p
->name
);
1017 if(!IsDead(target_p
) && !IsClosing(target_p
))
1018 exit_remote_client(NULL
, target_p
, &me
, comment
);
1023 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1025 target_p
= ptr
->data
;
1026 target_p
->flags
|= FLAGS_KILLED
;
1028 if(!IsDead(target_p
) && !IsClosing(target_p
))
1029 exit_remote_client(NULL
, target_p
, &me
, comment
);
1033 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1035 target_p
= ptr
->data
;
1036 recurse_remove_clients(target_p
, comment
);
1037 qs_server(NULL
, target_p
, &me
, comment
);
1042 ** Remove *everything* that depends on source_p, from all lists, and sending
1043 ** all necessary QUITs and SQUITs. source_p itself is still on the lists,
1044 ** and its SQUITs have been sent except for the upstream one -orabidoo
1047 remove_dependents(struct Client
*client_p
,
1048 struct Client
*source_p
,
1049 struct Client
*from
, const char *comment
, const char *comment1
)
1052 rb_dlink_node
*ptr
, *next
;
1054 RB_DLINK_FOREACH_SAFE(ptr
, next
, serv_list
.head
)
1058 if(IsMe(to
) || to
== source_p
->from
||
1059 (to
== client_p
&& IsCapable(to
, CAP_QS
)))
1062 recurse_send_quits(client_p
, source_p
, to
, comment1
, comment
);
1065 recurse_remove_clients(source_p
, comment1
);
1069 exit_aborted_clients(void *unused
)
1071 struct abort_client
*abt
;
1072 rb_dlink_node
*ptr
, *next
;
1073 RB_DLINK_FOREACH_SAFE(ptr
, next
, abort_list
.head
)
1077 #ifdef DEBUG_EXITED_CLIENTS
1079 if(rb_dlinkFind(abt
->client
, &dead_list
))
1082 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1083 "On dead_list: %s stat: %u flags: %u/%u handler: %c",
1084 abt
->client
->name
, (unsigned int) abt
->client
->status
,
1085 abt
->client
->flags
, abt
->client
->flags2
, abt
->client
->handler
);
1086 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1087 "Please report this to the charybdis developers!");
1093 s_assert(*((unsigned long*)abt
->client
) != 0xdeadbeef); /* This is lame but its a debug thing */
1094 rb_dlinkDelete(ptr
, &abort_list
);
1096 if(IsAnyServer(abt
->client
))
1097 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1098 "Closing link to %s: %s",
1099 abt
->client
->name
, abt
->notice
);
1101 /* its no longer on abort list - we *must* remove
1102 * FLAGS_CLOSING otherwise exit_client() will not run --fl
1104 abt
->client
->flags
&= ~FLAGS_CLOSING
;
1105 exit_client(abt
->client
, abt
->client
, &me
, abt
->notice
);
1112 * dead_link - Adds client to a list of clients that need an exit_client()
1116 dead_link(struct Client
*client_p
, int sendqex
)
1118 struct abort_client
*abt
;
1120 s_assert(!IsMe(client_p
));
1121 if(IsDead(client_p
) || IsClosing(client_p
) || IsMe(client_p
))
1124 abt
= (struct abort_client
*) rb_malloc(sizeof(struct abort_client
));
1127 rb_strlcpy(abt
->notice
, "Max SendQ exceeded", sizeof(abt
->notice
));
1129 rb_snprintf(abt
->notice
, sizeof(abt
->notice
), "Write error: %s", strerror(errno
));
1131 abt
->client
= client_p
;
1132 SetIOError(client_p
);
1134 SetClosing(client_p
);
1135 rb_dlinkAdd(abt
, &abt
->node
, &abort_list
);
1139 /* This does the remove of the user from channels..local or remote */
1141 exit_generic_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1142 const char *comment
)
1144 rb_dlink_node
*ptr
, *next_ptr
;
1146 if(IsOper(source_p
))
1147 rb_dlinkFindDestroy(source_p
, &oper_list
);
1149 sendto_common_channels_local(source_p
, ":%s!%s@%s QUIT :%s",
1151 source_p
->username
, source_p
->host
, comment
);
1153 remove_user_from_channels(source_p
);
1155 /* Should not be in any channels now */
1156 s_assert(source_p
->user
->channel
.head
== NULL
);
1158 /* Clean up invitefield */
1159 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, source_p
->user
->invited
.head
)
1161 del_invite(ptr
->data
, source_p
);
1164 /* Clean up allow lists */
1165 del_all_accepts(source_p
);
1167 add_history(source_p
, 0);
1168 off_history(source_p
);
1170 monitor_signoff(source_p
);
1172 if(has_id(source_p
))
1173 del_from_id_hash(source_p
->id
, source_p
);
1175 del_from_hostname_hash(source_p
->orighost
, source_p
);
1176 del_from_client_hash(source_p
->name
, source_p
);
1177 remove_client_from_list(source_p
);
1181 * Assumes IsPerson(source_p) && !MyConnect(source_p)
1185 exit_remote_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1186 const char *comment
)
1188 exit_generic_client(client_p
, source_p
, from
, comment
);
1190 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1192 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->users
);
1195 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1197 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1198 ":%s QUIT :%s", use_id(source_p
), comment
);
1202 #ifdef DEBUG_EXITED_CLIENTS
1203 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1205 rb_dlinkAddAlloc(source_p
, &dead_list
);
1207 return(CLIENT_EXITED
);
1211 * This assumes IsUnknown(source_p) == TRUE and MyConnect(source_p) == TRUE
1215 exit_unknown_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1216 const char *comment
)
1218 delete_auth_queries(source_p
);
1219 if (source_p
->localClient
->dnsquery
)
1221 delete_resolver_queries(source_p
->localClient
->dnsquery
);
1222 rb_free(source_p
->localClient
->dnsquery
);
1224 rb_dlinkDelete(&source_p
->localClient
->tnode
, &unknown_list
);
1226 if(!IsIOError(source_p
))
1227 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)",
1228 source_p
->user
!= NULL
? source_p
->host
: "127.0.0.1",
1231 close_connection(source_p
);
1233 if(has_id(source_p
))
1234 del_from_id_hash(source_p
->id
, source_p
);
1236 del_from_hostname_hash(source_p
->host
, source_p
);
1237 del_from_client_hash(source_p
->name
, source_p
);
1238 remove_client_from_list(source_p
);
1240 rb_dlinkAddAlloc(source_p
, &dead_list
);
1242 /* Note that we don't need to add unknowns to the dead_list */
1243 return(CLIENT_EXITED
);
1247 exit_remote_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1248 const char *comment
)
1250 static char comment1
[(HOSTLEN
*2)+2];
1251 static char newcomment
[BUFSIZE
];
1252 struct Client
*target_p
;
1254 if(ConfigServerHide
.flatten_links
)
1255 strcpy(comment1
, "*.net *.split");
1258 strcpy(comment1
, source_p
->servptr
->name
);
1259 strcat(comment1
, " ");
1260 strcat(comment1
, source_p
->name
);
1263 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1264 from
->name
, comment
);
1266 if(source_p
->serv
!= NULL
)
1267 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1269 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1270 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1274 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1275 target_p
= source_p
->from
;
1277 if(target_p
!= NULL
&& IsServer(target_p
) && target_p
!= client_p
&&
1278 !IsMe(target_p
) && (source_p
->flags
& FLAGS_KILLED
) == 0)
1280 sendto_one(target_p
, ":%s SQUIT %s :%s",
1281 get_id(from
, target_p
), get_id(source_p
, target_p
),
1285 if(has_id(source_p
))
1286 del_from_id_hash(source_p
->id
, source_p
);
1288 del_from_client_hash(source_p
->name
, source_p
);
1289 remove_client_from_list(source_p
);
1290 scache_split(source_p
->serv
->nameinfo
);
1293 #ifdef DEBUG_EXITED_CLIENTS
1294 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1296 rb_dlinkAddAlloc(source_p
, &dead_list
);
1302 qs_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1303 const char *comment
)
1305 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1306 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1310 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1312 if(has_id(source_p
))
1313 del_from_id_hash(source_p
->id
, source_p
);
1315 del_from_client_hash(source_p
->name
, source_p
);
1316 remove_client_from_list(source_p
);
1317 scache_split(source_p
->serv
->nameinfo
);
1320 rb_dlinkAddAlloc(source_p
, &dead_list
);
1325 exit_local_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1326 const char *comment
)
1328 static char comment1
[(HOSTLEN
*2)+2];
1329 static char newcomment
[BUFSIZE
];
1330 unsigned int sendk
, recvk
;
1332 rb_dlinkDelete(&source_p
->localClient
->tnode
, &serv_list
);
1333 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1335 unset_chcap_usage_counts(source_p
);
1336 sendk
= source_p
->localClient
->sendK
;
1337 recvk
= source_p
->localClient
->receiveK
;
1339 /* Always show source here, so the server notices show
1340 * which side initiated the split -- jilles
1342 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1343 from
== source_p
? me
.name
: from
->name
, comment
);
1344 if (!IsIOError(source_p
))
1345 sendto_one(source_p
, "SQUIT %s :%s", use_id(source_p
),
1347 if(client_p
!= NULL
&& source_p
!= client_p
&& !IsIOError(source_p
))
1349 sendto_one(source_p
, "ERROR :Closing Link: 127.0.0.1 %s (%s)",
1350 source_p
->name
, comment
);
1353 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1354 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1359 close_connection(source_p
);
1361 if(ConfigServerHide
.flatten_links
)
1362 strcpy(comment1
, "*.net *.split");
1365 strcpy(comment1
, source_p
->servptr
->name
);
1366 strcat(comment1
, " ");
1367 strcat(comment1
, source_p
->name
);
1370 if(source_p
->serv
!= NULL
)
1371 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1373 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "%s was connected"
1374 " for %ld seconds. %d/%d sendK/recvK.",
1375 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1377 ilog(L_SERVER
, "%s was connected for %ld seconds. %d/%d sendK/recvK.",
1378 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1380 if(has_id(source_p
))
1381 del_from_id_hash(source_p
->id
, source_p
);
1383 del_from_client_hash(source_p
->name
, source_p
);
1384 remove_client_from_list(source_p
);
1385 scache_split(source_p
->serv
->nameinfo
);
1388 rb_dlinkAddAlloc(source_p
, &dead_list
);
1394 * This assumes IsPerson(source_p) == TRUE && MyConnect(source_p) == TRUE
1398 exit_local_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1399 const char *comment
)
1401 unsigned long on_for
;
1404 exit_generic_client(client_p
, source_p
, from
, comment
);
1405 clear_monitor(source_p
);
1407 s_assert(IsPerson(source_p
));
1408 rb_dlinkDelete(&source_p
->localClient
->tnode
, &lclient_list
);
1409 rb_dlinkDelete(&source_p
->lnode
, &me
.serv
->users
);
1411 if(IsOper(source_p
))
1412 rb_dlinkFindDestroy(source_p
, &local_oper_list
);
1414 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
1415 "Client exiting: %s (%s@%s) [%s] [%s]",
1417 source_p
->username
, source_p
->host
, comment
,
1418 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255");
1420 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
1421 "CLIEXIT %s %s %s %s 0 %s",
1422 source_p
->name
, source_p
->username
, source_p
->host
,
1423 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255",
1426 on_for
= rb_current_time() - source_p
->localClient
->firsttime
;
1428 ilog(L_USER
, "%s (%3lu:%02lu:%02lu): %s!%s@%s %s %d/%d",
1429 rb_ctime(rb_current_time(), tbuf
, sizeof(tbuf
)), on_for
/ 3600,
1430 (on_for
% 3600) / 60, on_for
% 60,
1431 source_p
->name
, source_p
->username
, source_p
->host
,
1433 source_p
->localClient
->sendK
, source_p
->localClient
->receiveK
);
1435 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)", source_p
->host
, comment
);
1436 close_connection(source_p
);
1438 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1440 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1441 ":%s QUIT :%s", use_id(source_p
), comment
);
1445 rb_dlinkAddAlloc(source_p
, &dead_list
);
1446 return(CLIENT_EXITED
);
1451 ** exit_client - This is old "m_bye". Name changed, because this is not a
1452 ** protocol function, but a general server utility function.
1454 ** This function exits a client of *any* type (user, server, etc)
1455 ** from this server. Also, this generates all necessary prototol
1456 ** messages that this exit may cause.
1458 ** 1) If the client is a local client, then this implicitly
1459 ** exits all other clients depending on this connection (e.g.
1460 ** remote clients having 'from'-field that points to this.
1462 ** 2) If the client is a remote client, then only this is exited.
1464 ** For convenience, this function returns a suitable value for
1465 ** m_function return value:
1467 ** CLIENT_EXITED if (client_p == source_p)
1468 ** 0 if (client_p != source_p)
1471 exit_client(struct Client
*client_p
, /* The local client originating the
1472 * exit or NULL, if this exit is
1473 * generated by this server for
1475 * This will not get any of the
1476 * generated messages. */
1477 struct Client
*source_p
, /* Client exiting */
1478 struct Client
*from
, /* Client firing off this Exit,
1480 const char *comment
/* Reason for the exit */
1483 hook_data_client_exit hdata
;
1484 if(IsClosing(source_p
))
1487 /* note, this HAS to be here, when we exit a client we attempt to
1488 * send them data, if this generates a write error we must *not* add
1489 * them to the abort list --fl
1491 SetClosing(source_p
);
1493 hdata
.local_link
= client_p
;
1494 hdata
.target
= source_p
;
1496 hdata
.comment
= comment
;
1497 call_hook(h_client_exit
, &hdata
);
1499 if(MyConnect(source_p
))
1501 /* Local clients of various types */
1502 if(IsPerson(source_p
))
1503 return exit_local_client(client_p
, source_p
, from
, comment
);
1504 else if(IsServer(source_p
))
1505 return exit_local_server(client_p
, source_p
, from
, comment
);
1506 /* IsUnknown || IsConnecting || IsHandShake */
1507 else if(!IsReject(source_p
))
1508 return exit_unknown_client(client_p
, source_p
, from
, comment
);
1513 if(IsPerson(source_p
))
1514 return exit_remote_client(client_p
, source_p
, from
, comment
);
1515 else if(IsServer(source_p
))
1516 return exit_remote_server(client_p
, source_p
, from
, comment
);
1523 * Count up local client memory
1526 /* XXX one common Client list now */
1528 count_local_client_memory(size_t * count
, size_t * local_client_memory_used
)
1531 rb_bh_usage(lclient_heap
, count
, NULL
, &lusage
, NULL
);
1532 *local_client_memory_used
= lusage
+ (*count
* (sizeof(void *) + sizeof(struct Client
)));
1536 * Count up remote client memory
1539 count_remote_client_memory(size_t * count
, size_t * remote_client_memory_used
)
1541 size_t lcount
, rcount
;
1542 rb_bh_usage(lclient_heap
, &lcount
, NULL
, NULL
, NULL
);
1543 rb_bh_usage(client_heap
, &rcount
, NULL
, NULL
, NULL
);
1544 *count
= rcount
- lcount
;
1545 *remote_client_memory_used
= *count
* (sizeof(void *) + sizeof(struct Client
));
1550 * accept processing, this adds a form of "caller ID" to ircd
1552 * If a client puts themselves into "caller ID only" mode,
1553 * only clients that match a client pointer they have put on
1554 * the accept list will be allowed to message them.
1556 * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1558 * [target.allow_list] -> [ source1 ] -> [source2 ]
1560 * i.e. a target will have a link list of source pointers it will allow
1561 * each source client then has a back pointer pointing back
1562 * to the client that has it on its accept list.
1563 * This allows for exit_one_client to remove these now bogus entries
1564 * from any client having an accept on them.
1569 * inputs - pointer to exiting client
1571 * side effects - Walk through given clients allow_list and on_allow_list
1572 * remove all references to this client
1575 del_all_accepts(struct Client
*client_p
)
1578 rb_dlink_node
*next_ptr
;
1579 struct Client
*target_p
;
1581 if(MyClient(client_p
) && client_p
->localClient
->allow_list
.head
)
1583 /* clear this clients accept list, and remove them from
1584 * everyones on_accept_list
1586 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->localClient
->allow_list
.head
)
1588 target_p
= ptr
->data
;
1589 rb_dlinkFindDestroy(client_p
, &target_p
->on_allow_list
);
1590 rb_dlinkDestroy(ptr
, &client_p
->localClient
->allow_list
);
1594 /* remove this client from everyones accept list */
1595 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
1597 target_p
= ptr
->data
;
1598 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
1599 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
1604 * show_ip() - asks if the true IP shoudl be shown when source is
1605 * askin for info about target
1607 * Inputs - source_p who is asking
1608 * - target_p who do we want the info on
1609 * Output - returns 1 if clear IP can be showed, otherwise 0
1610 * Side Effects - none
1614 show_ip(struct Client
*source_p
, struct Client
*target_p
)
1616 if(IsAnyServer(target_p
))
1620 else if(IsIPSpoof(target_p
))
1622 /* source == NULL indicates message is being sent
1625 if(!ConfigFileEntry
.hide_spoof_ips
&&
1626 (source_p
== NULL
|| MyOper(source_p
)))
1630 else if(IsDynSpoof(target_p
) && (source_p
!= NULL
&& !IsOper(source_p
)))
1637 show_ip_conf(struct ConfItem
*aconf
, struct Client
*source_p
)
1639 if(IsConfDoSpoofIp(aconf
))
1641 if(!ConfigFileEntry
.hide_spoof_ips
&& MyOper(source_p
))
1653 * inputs - pointer to client struct
1654 * output - pointer to struct User
1655 * side effects - add's an User information block to a client
1656 * if it was not previously allocated.
1659 make_user(struct Client
*client_p
)
1662 struct Dictionary
*metadata
;
1664 user
= client_p
->user
;
1667 user
= (struct User
*) rb_bh_alloc(user_heap
);
1669 client_p
->user
= user
;
1671 metadata
= irc_dictionary_create(irccmp
);
1672 client_p
->user
->metadata
= metadata
;
1680 * inputs - pointer to client struct
1681 * output - pointer to server_t
1682 * side effects - add's an Server information block to a client
1683 * if it was not previously allocated.
1686 make_server(struct Client
*client_p
)
1688 struct Server
*serv
= client_p
->serv
;
1692 serv
= (struct Server
*) rb_malloc(sizeof(struct Server
));
1693 client_p
->serv
= serv
;
1695 return client_p
->serv
;
1701 * inputs - pointer to user struct
1702 * - pointer to client struct
1704 * side effects - Decrease user reference count by one and release block,
1705 * if count reaches 0
1708 free_user(struct User
*user
, struct Client
*client_p
)
1710 free_away(client_p
);
1712 /* get rid of any metadata the user may have */
1713 user_metadata_clear(client_p
);
1715 if(--user
->refcnt
<= 0)
1718 rb_free((char *) user
->away
);
1723 if(user
->refcnt
< 0 || user
->invited
.head
|| user
->channel
.head
)
1725 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1726 "* %#lx user (%s!%s@%s) %#lx %#lx %#lx %lu %d *",
1727 (unsigned long) client_p
,
1728 client_p
? client_p
->
1732 (unsigned long) user
,
1733 (unsigned long) user
->invited
.head
,
1734 (unsigned long) user
->channel
.head
,
1735 rb_dlink_list_length(&user
->channel
),
1737 s_assert(!user
->refcnt
);
1738 s_assert(!user
->invited
.head
);
1739 s_assert(!user
->channel
.head
);
1742 rb_bh_free(user_heap
, user
);
1747 allocate_away(struct Client
*client_p
)
1749 if(client_p
->user
->away
== NULL
)
1750 client_p
->user
->away
= rb_bh_alloc(away_heap
);
1755 free_away(struct Client
*client_p
)
1757 if(client_p
->user
!= NULL
&& client_p
->user
->away
!= NULL
) {
1758 rb_bh_free(away_heap
, client_p
->user
->away
);
1759 client_p
->user
->away
= NULL
;
1768 for(i
= 0; i
< 3; i
++)
1769 current_uid
[i
] = me
.id
[i
];
1771 for(i
= 3; i
< 9; i
++)
1772 current_uid
[i
] = 'A';
1774 current_uid
[9] = '\0';
1783 for(i
= 8; i
> 3; i
--)
1785 if(current_uid
[i
] == 'Z')
1787 current_uid
[i
] = '0';
1790 else if(current_uid
[i
] != '9')
1796 current_uid
[i
] = 'A';
1799 /* if this next if() triggers, we're fucked. */
1800 if(current_uid
[3] == 'Z')
1802 current_uid
[i
] = 'A';
1813 * Close the physical connection. This function must make
1814 * MyConnect(client_p) == FALSE, and set client_p->from == NULL.
1817 close_connection(struct Client
*client_p
)
1819 s_assert(client_p
!= NULL
);
1820 if(client_p
== NULL
)
1823 s_assert(MyConnect(client_p
));
1824 if(!MyConnect(client_p
))
1827 if(IsServer(client_p
))
1829 struct server_conf
*server_p
;
1831 ServerStats
.is_sv
++;
1832 ServerStats
.is_sbs
+= client_p
->localClient
->sendB
;
1833 ServerStats
.is_sbr
+= client_p
->localClient
->receiveB
;
1834 ServerStats
.is_sti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
1837 * If the connection has been up for a long amount of time, schedule
1838 * a 'quick' reconnect, else reset the next-connect cycle.
1840 if((server_p
= find_server_conf(client_p
->name
)) != NULL
)
1843 * Reschedule a faster reconnect, if this was a automatically
1844 * connected configuration entry. (Note that if we have had
1845 * a rehash in between, the status has been changed to
1846 * CONF_ILLEGAL). But only do this if it was a "good" link.
1848 server_p
->hold
= time(NULL
);
1850 (server_p
->hold
- client_p
->localClient
->lasttime
>
1851 HANGONGOODLINK
) ? HANGONRETRYDELAY
: ConFreq(server_p
->class);
1855 else if(IsClient(client_p
))
1857 ServerStats
.is_cl
++;
1858 ServerStats
.is_cbs
+= client_p
->localClient
->sendB
;
1859 ServerStats
.is_cbr
+= client_p
->localClient
->receiveB
;
1860 ServerStats
.is_cti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
1863 ServerStats
.is_ni
++;
1865 if(client_p
->localClient
->F
!= NULL
)
1867 /* attempt to flush any pending dbufs. Evil, but .. -- adrian */
1868 if(!IsIOError(client_p
))
1869 send_queued(client_p
);
1871 del_from_cli_fd_hash(client_p
);
1872 rb_close(client_p
->localClient
->F
);
1873 client_p
->localClient
->F
= NULL
;
1876 rb_linebuf_donebuf(&client_p
->localClient
->buf_sendq
);
1877 rb_linebuf_donebuf(&client_p
->localClient
->buf_recvq
);
1878 detach_conf(client_p
);
1880 /* XXX shouldnt really be done here. */
1881 detach_server_conf(client_p
);
1883 client_p
->from
= NULL
; /* ...this should catch them! >:) --msa */
1884 ClearMyConnect(client_p
);
1885 SetIOError(client_p
);
1891 error_exit_client(struct Client
*client_p
, int error
)
1894 * ...hmm, with non-blocking sockets we might get
1895 * here from quite valid reasons, although.. why
1896 * would select report "data available" when there
1897 * wasn't... so, this must be an error anyway... --msa
1898 * actually, EOF occurs when read() returns 0 and
1899 * in due course, select() returns that fd as ready
1900 * for reading even though it ends up being an EOF. -avalon
1903 int current_error
= rb_get_sockerr(client_p
->localClient
->F
);
1905 SetIOError(client_p
);
1907 if(IsServer(client_p
) || IsHandshake(client_p
))
1911 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
1912 "Server %s closed the connection",
1915 ilog(L_SERVER
, "Server %s closed the connection",
1916 log_client_name(client_p
, SHOW_IP
));
1920 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
1921 "Lost connection to %s: %s",
1922 client_p
->name
, strerror(current_error
));
1923 ilog(L_SERVER
, "Lost connection to %s: %s",
1924 log_client_name(client_p
, SHOW_IP
), strerror(current_error
));
1929 rb_strlcpy(errmsg
, "Remote host closed the connection", sizeof(errmsg
));
1931 rb_snprintf(errmsg
, sizeof(errmsg
), "Read error: %s", strerror(current_error
));
1933 exit_client(client_p
, client_p
, &me
, errmsg
);
1939 * inputs - pointer to client struct
1940 * - name of metadata item you wish to add
1941 * - value of metadata item
1942 * - 1 if metadata should be propegated, 0 if not
1944 * side effects - metadata is added to the user in question
1945 * - metadata is propegated if propegate is set.
1948 user_metadata_add(struct Client
*target
, const char *name
, const char *value
, int propegate
)
1950 struct Metadata
*md
;
1952 md
= rb_malloc(sizeof(struct Metadata
));
1953 md
->name
= rb_strdup(name
);
1954 md
->value
= rb_strdup(value
);
1956 irc_dictionary_add(target
->user
->metadata
, md
->name
, md
);
1959 sendto_match_servs(&me
, "*", CAP_ENCAP
, NOCAPS
, "ENCAP * METADATA ADD %s %s :%s",
1960 target
->name
, name
, value
);
1966 * user_metadata_delete
1968 * inputs - pointer to client struct
1969 * - name of metadata item you wish to delete
1971 * side effects - metadata is deleted from the user in question
1972 * - deletion is propegated if propegate is set
1975 user_metadata_delete(struct Client
*target
, const char *name
, int propegate
)
1977 struct Metadata
*md
= user_metadata_find(target
, name
);
1982 irc_dictionary_delete(target
->user
->metadata
, md
->name
);
1987 sendto_match_servs(&me
, "*", CAP_ENCAP
, NOCAPS
, "ENCAP * METADATA DELETE %s %s",
1988 target
->name
, name
);
1992 * user_metadata_find
1994 * inputs - pointer to client struct
1995 * - name of metadata item you wish to read
1996 * output - the requested metadata, if it exists, elsewise null.
2000 user_metadata_find(struct Client
*target
, const char *name
)
2005 if(!target
->user
->metadata
)
2008 return irc_dictionary_retrieve(target
->user
->metadata
, name
);
2011 * user_metadata_clear
2013 * inputs - pointer to user struct
2015 * side effects - metadata is cleared from the user in question
2018 user_metadata_clear(struct Client
*target
)
2020 struct Metadata
*md
;
2021 struct DictionaryIter iter
;
2023 DICTIONARY_FOREACH(md
, &iter
, target
->user
->metadata
)
2025 user_metadata_delete(target
, md
->name
, 0);