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 $
36 #include "irc_string.h"
37 #include "sprintf_irc.h"
45 #include "s_newconf.h"
61 #include "blacklist.h"
64 #include "irc_dictionary.h"
66 #define DEBUG_EXITED_CLIENTS
68 static void check_pings_list(dlink_list
* list
);
69 static void check_unknowns_list(dlink_list
* list
);
70 static void free_exited_clients(void *unused
);
71 static void exit_aborted_clients(void *unused
);
73 static int exit_remote_client(struct Client
*, struct Client
*, struct Client
*,const char *);
74 static int exit_remote_server(struct Client
*, struct Client
*, struct Client
*,const char *);
75 static int exit_local_client(struct Client
*, struct Client
*, struct Client
*,const char *);
76 static int exit_unknown_client(struct Client
*, struct Client
*, struct Client
*,const char *);
77 static int exit_local_server(struct Client
*, struct Client
*, struct Client
*,const char *);
78 static int qs_server(struct Client
*, struct Client
*, struct Client
*, const char *comment
);
80 static EVH check_pings
;
82 extern BlockHeap
*client_heap
;
83 extern BlockHeap
*lclient_heap
;
84 extern BlockHeap
*pclient_heap
;
86 extern char current_uid
[IDLEN
];
88 struct Dictionary
*nd_dict
= NULL
;
98 #ifdef DEBUG_EXITED_CLIENTS
99 static dlink_list dead_remote_list
;
105 struct Client
*client
;
106 char notice
[REASONLEN
];
109 static dlink_list abort_list
;
117 * side effects - initialize client free memory
123 * start off the check ping event .. -- adrian
124 * Every 30 seconds is plenty -- db
126 client_heap
= BlockHeapCreate(sizeof(struct Client
), CLIENT_HEAP_SIZE
);
127 lclient_heap
= BlockHeapCreate(sizeof(struct LocalUser
), LCLIENT_HEAP_SIZE
);
128 pclient_heap
= BlockHeapCreate(sizeof(struct PreClient
), PCLIENT_HEAP_SIZE
);
129 eventAddIsh("check_pings", check_pings
, NULL
, 30);
130 eventAddIsh("free_exited_clients", &free_exited_clients
, NULL
, 4);
131 eventAddIsh("exit_aborted_clients", exit_aborted_clients
, NULL
, 1);
133 nd_dict
= irc_dictionary_create(irccmp
);
138 * make_client - create a new Client struct and set it to initial state.
140 * from == NULL, create local client (a client connected
143 * from, create remote client (behind a socket
144 * associated with the client defined by
145 * 'from'). ('from' is a local client!!).
148 make_client(struct Client
*from
)
150 struct Client
*client_p
= NULL
;
151 struct LocalUser
*localClient
;
153 client_p
= BlockHeapAlloc(client_heap
);
157 client_p
->from
= client_p
; /* 'from' of local client is self! */
159 localClient
= (struct LocalUser
*) BlockHeapAlloc(lclient_heap
);
160 SetMyConnect(client_p
);
161 client_p
->localClient
= localClient
;
163 client_p
->localClient
->lasttime
= client_p
->localClient
->firsttime
= CurrentTime
;
165 client_p
->localClient
->fd
= -1;
166 client_p
->localClient
->ctrlfd
= -1;
168 client_p
->preClient
= (struct PreClient
*) BlockHeapAlloc(pclient_heap
);
170 /* as good a place as any... */
171 dlinkAdd(client_p
, &client_p
->localClient
->tnode
, &unknown_list
);
174 { /* from is not NULL */
175 client_p
->localClient
= NULL
;
176 client_p
->preClient
= NULL
;
177 client_p
->from
= from
; /* 'from' of local client is self! */
180 SetUnknown(client_p
);
181 strcpy(client_p
->username
, "unknown");
187 free_pre_client(struct Client
*client_p
)
189 struct Blacklist
*blptr
;
191 s_assert(NULL
!= client_p
);
193 if(client_p
->preClient
== NULL
)
196 blptr
= client_p
->preClient
->dnsbl_listed
;
198 unref_blacklist(blptr
);
199 abort_blacklist_queries(client_p
);
200 BlockHeapFree(pclient_heap
, client_p
->preClient
);
201 client_p
->preClient
= NULL
;
205 free_local_client(struct Client
*client_p
)
207 s_assert(NULL
!= client_p
);
208 s_assert(&me
!= client_p
);
210 if(client_p
->localClient
== NULL
)
214 * clean up extra sockets from P-lines which have been discarded.
216 if(client_p
->localClient
->listener
)
218 s_assert(0 < client_p
->localClient
->listener
->ref_count
);
219 if(0 == --client_p
->localClient
->listener
->ref_count
220 && !client_p
->localClient
->listener
->active
)
221 free_listener(client_p
->localClient
->listener
);
222 client_p
->localClient
->listener
= 0;
225 if(client_p
->localClient
->fd
>= 0)
226 comm_close(client_p
->localClient
->fd
);
228 if(client_p
->localClient
->passwd
)
230 memset(client_p
->localClient
->passwd
, 0,
231 strlen(client_p
->localClient
->passwd
));
232 MyFree(client_p
->localClient
->passwd
);
235 MyFree(client_p
->localClient
->challenge
);
236 MyFree(client_p
->localClient
->fullcaps
);
237 MyFree(client_p
->localClient
->opername
);
238 MyFree(client_p
->localClient
->mangledhost
);
240 BlockHeapFree(lclient_heap
, client_p
->localClient
);
241 client_p
->localClient
= NULL
;
245 free_client(struct Client
*client_p
)
247 s_assert(NULL
!= client_p
);
248 s_assert(&me
!= client_p
);
249 free_local_client(client_p
);
250 free_pre_client(client_p
);
251 BlockHeapFree(client_heap
, client_p
);
255 * check_pings - go through the local client list and check activity
256 * kill off stuff that should die
258 * inputs - NOT USED (from event)
259 * output - next time_t when check_pings() should be called again
263 * A PING can be sent to clients as necessary.
265 * Client/Server ping outs are handled.
269 * Addon from adrian. We used to call this after nextping seconds,
270 * however I've changed it to run once a second. This is only for
271 * PING timeouts, not K/etc-line checks (thanks dianora!). Having it
272 * run once a second makes life a lot easier - when a new client connects
273 * and they need a ping in 4 seconds, if nextping was set to 20 seconds
274 * we end up waiting 20 seconds. This is stupid. :-)
275 * I will optimise (hah!) check_pings() once I've finished working on
276 * tidying up other network IO evilnesses.
281 check_pings(void *notused
)
283 check_pings_list(&lclient_list
);
284 check_pings_list(&serv_list
);
285 check_unknowns_list(&unknown_list
);
291 * inputs - pointer to list to check
296 check_pings_list(dlink_list
* list
)
298 char scratch
[32]; /* way too generous but... */
299 struct Client
*client_p
; /* current local client_p being examined */
300 int ping
= 0; /* ping time value from client */
301 dlink_node
*ptr
, *next_ptr
;
303 DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
305 client_p
= ptr
->data
;
308 ** Note: No need to notify opers here. It's
309 ** already done when "FLAGS_DEADSOCKET" is set.
311 if(!MyConnect(client_p
) || IsDead(client_p
))
314 if(IsPerson(client_p
))
316 if(!IsExemptKline(client_p
) &&
317 GlobalSetOptions
.idletime
&&
319 !IsIdlelined(client_p
) &&
320 ((CurrentTime
- client_p
->localClient
->last
) > GlobalSetOptions
.idletime
))
322 struct ConfItem
*aconf
;
325 aconf
->status
= CONF_KILL
;
327 DupString(aconf
->host
, client_p
->host
);
328 DupString(aconf
->passwd
, "idle exceeder");
329 DupString(aconf
->user
, client_p
->username
);
331 aconf
->hold
= CurrentTime
+ 60;
332 add_temp_kline(aconf
);
333 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
334 "Idle time limit exceeded for %s - temp k-lining",
335 get_client_name(client_p
, HIDE_IP
));
337 exit_client(client_p
, client_p
, &me
, aconf
->passwd
);
342 if(!IsRegistered(client_p
))
343 ping
= ConfigFileEntry
.connect_timeout
;
345 ping
= get_client_ping(client_p
);
347 if(ping
< (CurrentTime
- client_p
->localClient
->lasttime
))
350 * If the client/server hasnt talked to us in 2*ping seconds
351 * and it has a ping time, then close its connection.
353 if(((CurrentTime
- client_p
->localClient
->lasttime
) >= (2 * ping
)
354 && (client_p
->flags
& FLAGS_PINGSENT
)))
356 if(IsAnyServer(client_p
))
358 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
359 "No response from %s, closing link",
360 get_server_name(client_p
, HIDE_IP
));
362 "No response from %s, closing link",
363 log_client_name(client_p
, HIDE_IP
));
365 (void) ircsnprintf(scratch
, sizeof(scratch
),
366 "Ping timeout: %d seconds",
367 (int) (CurrentTime
- client_p
->localClient
->lasttime
));
369 exit_client(client_p
, client_p
, &me
, scratch
);
372 else if((client_p
->flags
& FLAGS_PINGSENT
) == 0)
375 * if we havent PINGed the connection and we havent
376 * heard from it in a while, PING it to make sure
379 client_p
->flags
|= FLAGS_PINGSENT
;
380 /* not nice but does the job */
381 client_p
->localClient
->lasttime
= CurrentTime
- ping
;
382 sendto_one(client_p
, "PING :%s", me
.name
);
391 * check_unknowns_list
393 * inputs - pointer to list of unknown clients
395 * side effects - unknown clients get marked for termination after n seconds
398 check_unknowns_list(dlink_list
* list
)
400 dlink_node
*ptr
, *next_ptr
;
401 struct Client
*client_p
;
403 DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
405 client_p
= ptr
->data
;
407 if(IsDead(client_p
) || IsClosing(client_p
))
411 * Check UNKNOWN connections - if they have been in this state
412 * for > 30s, close them.
415 if((CurrentTime
- client_p
->localClient
->firsttime
) > 30)
416 exit_client(client_p
, client_p
, &me
, "Connection timed out");
421 notify_banned_client(struct Client
*client_p
, struct ConfItem
*aconf
, int ban
)
423 static const char conn_closed
[] = "Connection closed";
424 static const char d_lined
[] = "D-lined";
425 static const char k_lined
[] = "K-lined";
426 static const char g_lined
[] = "G-lined";
427 const char *reason
= NULL
;
428 const char *exit_reason
= conn_closed
;
430 if(ConfigFileEntry
.kline_with_reason
&& !EmptyString(aconf
->passwd
))
432 reason
= aconf
->passwd
;
433 exit_reason
= aconf
->passwd
;
437 switch (aconf
->status
)
451 if(ban
== D_LINED
&& !IsPerson(client_p
))
452 sendto_one(client_p
, "NOTICE DLINE :*** You have been D-lined");
454 sendto_one(client_p
, form_str(ERR_YOUREBANNEDCREEP
),
455 me
.name
, client_p
->name
, reason
);
457 exit_client(client_p
, client_p
, &me
,
458 EmptyString(ConfigFileEntry
.kline_reason
) ? exit_reason
:
459 ConfigFileEntry
.kline_reason
);
466 * side effects - Check all connections for a pending k/d/gline against the
467 * client, exit the client if found.
470 check_banned_lines(void)
472 struct Client
*client_p
; /* current local client_p being examined */
473 struct ConfItem
*aconf
= NULL
;
474 dlink_node
*ptr
, *next_ptr
;
476 DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
478 client_p
= ptr
->data
;
483 /* if there is a returned struct ConfItem then kill it */
484 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
, client_p
->localClient
->ip
.ss_family
)))
486 if(aconf
->status
& CONF_EXEMPTDLINE
)
489 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
490 "DLINE active for %s",
491 get_client_name(client_p
, HIDE_IP
));
493 notify_banned_client(client_p
, aconf
, D_LINED
);
494 continue; /* and go examine next fd/client_p */
497 if(!IsPerson(client_p
))
500 if((aconf
= find_kline(client_p
)) != NULL
)
502 if(IsExemptKline(client_p
))
504 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
505 "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
506 get_client_name(client_p
, HIDE_IP
),
507 aconf
->user
, aconf
->host
);
511 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
512 "KLINE active for %s",
513 get_client_name(client_p
, HIDE_IP
));
514 notify_banned_client(client_p
, aconf
, K_LINED
);
517 else if((aconf
= find_gline(client_p
)) != NULL
)
519 if(IsExemptKline(client_p
))
521 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
522 "GLINE over-ruled for %s, client is kline_exempt [%s@%s]",
523 get_client_name(client_p
, HIDE_IP
),
524 aconf
->user
, aconf
->host
);
528 if(IsExemptGline(client_p
))
530 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
531 "GLINE over-ruled for %s, client is gline_exempt [%s@%s]",
532 get_client_name(client_p
, HIDE_IP
),
533 aconf
->user
, aconf
->host
);
537 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
538 "GLINE active for %s",
539 get_client_name(client_p
, HIDE_IP
));
541 notify_banned_client(client_p
, aconf
, G_LINED
);
544 else if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
546 if(IsExemptKline(client_p
))
548 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
549 "XLINE over-ruled for %s, client is kline_exempt [%s]",
550 get_client_name(client_p
, HIDE_IP
),
555 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
556 get_client_name(client_p
, HIDE_IP
));
558 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
563 /* also check the unknowns list for new dlines */
564 DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
566 client_p
= ptr
->data
;
568 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)))
570 if(aconf
->status
& CONF_EXEMPTDLINE
)
573 notify_banned_client(client_p
, aconf
, D_LINED
);
579 /* check_klines_event()
583 * side effects - check_klines() is called, kline_queued unset
586 check_klines_event(void *unused
)
596 * side effects - all clients will be checked for klines
601 struct Client
*client_p
;
602 struct ConfItem
*aconf
;
604 dlink_node
*next_ptr
;
606 DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
608 client_p
= ptr
->data
;
610 if(IsMe(client_p
) || !IsPerson(client_p
))
613 if((aconf
= find_kline(client_p
)) != NULL
)
615 if(IsExemptKline(client_p
))
617 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
618 "KLINE over-ruled for %s, client is kline_exempt",
619 get_client_name(client_p
, HIDE_IP
));
623 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
624 "KLINE active for %s",
625 get_client_name(client_p
, HIDE_IP
));
627 notify_banned_client(client_p
, aconf
, K_LINED
);
637 * side effects - all clients will be checked for glines
642 struct Client
*client_p
;
643 struct ConfItem
*aconf
;
645 dlink_node
*next_ptr
;
647 DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
649 client_p
= ptr
->data
;
651 if(IsMe(client_p
) || !IsPerson(client_p
))
654 if((aconf
= find_gline(client_p
)) != NULL
)
656 if(IsExemptKline(client_p
))
658 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
659 "GLINE over-ruled for %s, client is kline_exempt",
660 get_client_name(client_p
, HIDE_IP
));
664 if(IsExemptGline(client_p
))
666 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
667 "GLINE over-ruled for %s, client is gline_exempt",
668 get_client_name(client_p
, HIDE_IP
));
672 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
673 "GLINE active for %s",
674 get_client_name(client_p
, HIDE_IP
));
676 notify_banned_client(client_p
, aconf
, K_LINED
);
686 * side effects - all clients will be checked for dlines
691 struct Client
*client_p
;
692 struct ConfItem
*aconf
;
694 dlink_node
*next_ptr
;
696 DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
698 client_p
= ptr
->data
;
703 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
705 if(aconf
->status
& CONF_EXEMPTDLINE
)
708 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
709 "DLINE active for %s",
710 get_client_name(client_p
, HIDE_IP
));
712 notify_banned_client(client_p
, aconf
, D_LINED
);
717 /* dlines need to be checked against unknowns too */
718 DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
720 client_p
= ptr
->data
;
722 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
724 if(aconf
->status
& CONF_EXEMPTDLINE
)
727 notify_banned_client(client_p
, aconf
, D_LINED
);
736 * side effects - all clients will be checked for xlines
741 struct Client
*client_p
;
742 struct ConfItem
*aconf
;
744 dlink_node
*next_ptr
;
746 DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
748 client_p
= ptr
->data
;
750 if(IsMe(client_p
) || !IsPerson(client_p
))
753 if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
755 if(IsExemptKline(client_p
))
757 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
758 "XLINE over-ruled for %s, client is kline_exempt",
759 get_client_name(client_p
, HIDE_IP
));
763 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
764 get_client_name(client_p
, HIDE_IP
));
766 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
773 * update_client_exit_stats
775 * input - pointer to client
780 update_client_exit_stats(struct Client
*client_p
)
782 if(IsServer(client_p
))
784 sendto_realops_snomask(SNO_EXTERNAL
, L_ALL
,
785 "Server %s split from %s",
786 client_p
->name
, client_p
->servptr
->name
);
787 if(HasSentEob(client_p
))
790 else if(IsClient(client_p
))
795 if(IsInvisible(client_p
))
799 if(splitchecking
&& !splitmode
)
800 check_splitmode(NULL
);
804 * release_client_state
806 * input - pointer to client to release
811 release_client_state(struct Client
*client_p
)
813 if(client_p
->user
!= NULL
)
815 free_user(client_p
->user
, client_p
); /* try this here */
819 if(client_p
->serv
->user
!= NULL
)
820 free_user(client_p
->serv
->user
, client_p
);
821 if(client_p
->serv
->fullcaps
)
822 MyFree(client_p
->serv
->fullcaps
);
823 MyFree(client_p
->serv
);
828 * remove_client_from_list
829 * inputs - point to client to remove
831 * side effects - taken the code from ExitOneClient() for this
832 * and placed it here. - avalon
835 remove_client_from_list(struct Client
*client_p
)
837 s_assert(NULL
!= client_p
);
842 /* A client made with make_client()
843 * is on the unknown_list until removed.
844 * If it =does= happen to exit before its removed from that list
845 * and its =not= on the global_client_list, it will core here.
846 * short circuit that case now -db
848 if(client_p
->node
.prev
== NULL
&& client_p
->node
.next
== NULL
)
851 dlinkDelete(&client_p
->node
, &global_client_list
);
853 update_client_exit_stats(client_p
);
858 * find_person - find person by (nick)name.
859 * inputs - pointer to name
860 * output - return client pointer
864 find_person(const char *name
)
866 struct Client
*c2ptr
;
868 c2ptr
= find_client(name
);
870 if(c2ptr
&& IsPerson(c2ptr
))
876 find_named_person(const char *name
)
878 struct Client
*c2ptr
;
880 c2ptr
= find_named_client(name
);
882 if(c2ptr
&& IsPerson(c2ptr
))
889 * find_chasing - find the client structure for a nick name (user)
890 * using history mechanism if necessary. If the client is not found,
891 * an error message (NO SUCH NICK) is generated. If the client was found
892 * through the history, chasing will be 1 and otherwise 0.
895 find_chasing(struct Client
*source_p
, const char *user
, int *chasing
)
899 if(MyClient(source_p
))
900 who
= find_named_person(user
);
902 who
= find_person(user
);
907 if(who
|| IsDigit(*user
))
910 if(!(who
= get_history(user
, (long) KILLCHASETIMELIMIT
)))
912 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
913 form_str(ERR_NOSUCHNICK
), user
);
922 * get_client_name - Return the name of the client
923 * for various tracking and
924 * admin purposes. The main purpose of this function is to
925 * return the "socket host" name of the client, if that
926 * differs from the advertised name (other than case).
927 * But, this can be used to any client structure.
930 * Watch out the allocation of "nbuf", if either source_p->name
931 * or source_p->sockhost gets changed into pointers instead of
932 * directly allocated within the structure...
935 * Function return either a pointer to the structure (source_p) or
936 * to internal buffer (nbuf). *NEVER* use the returned pointer
937 * to modify what it points!!!
941 get_client_name(struct Client
*client
, int showip
)
943 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
945 s_assert(NULL
!= client
);
949 if(MyConnect(client
))
951 if(!irccmp(client
->name
, client
->host
))
954 if(ConfigFileEntry
.hide_spoof_ips
&&
955 showip
== SHOW_IP
&& IsIPSpoof(client
))
957 #ifdef HIDE_SERVERS_IPS
958 if(IsAnyServer(client
))
962 /* And finally, let's get the host information, ip or name */
966 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
967 client
->name
, client
->username
,
971 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
972 client
->name
, client
->username
);
975 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
976 client
->name
, client
->username
, client
->host
);
981 /* As pointed out by Adel Mezibra
982 * Neph|l|m@EFnet. Was missing a return here.
988 get_server_name(struct Client
*target_p
, int showip
)
990 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
995 if(!MyConnect(target_p
) || !irccmp(target_p
->name
, target_p
->host
))
996 return target_p
->name
;
998 #ifdef HIDE_SERVERS_IPS
999 if(EmptyString(target_p
->name
))
1001 ircsnprintf(nbuf
, sizeof(nbuf
), "[%s@255.255.255.255]",
1002 target_p
->username
);
1006 return target_p
->name
;
1012 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
1013 target_p
->name
, target_p
->username
,
1014 target_p
->sockhost
);
1018 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
1019 target_p
->name
, target_p
->username
);
1022 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
1023 target_p
->name
, target_p
->username
,
1030 /* log_client_name()
1032 * This version is the same as get_client_name, but doesnt contain the
1033 * code that will hide IPs always. This should be used for logfiles.
1036 log_client_name(struct Client
*target_p
, int showip
)
1038 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
1040 if(target_p
== NULL
)
1043 if(MyConnect(target_p
))
1045 if(irccmp(target_p
->name
, target_p
->host
) == 0)
1046 return target_p
->name
;
1051 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
1052 target_p
->username
, target_p
->sockhost
);
1056 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
1057 target_p
->name
, target_p
->username
);
1060 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
1061 target_p
->username
, target_p
->host
);
1067 return target_p
->name
;
1070 /* is_remote_connect - Returns whether a server was /connect'ed by a remote
1071 * oper (send notices netwide) */
1073 is_remote_connect(struct Client
*client_p
)
1075 struct Client
*oper
;
1077 if (client_p
->serv
== NULL
)
1079 oper
= find_named_person(client_p
->serv
->by
);
1080 return oper
!= NULL
&& IsOper(oper
) && !MyConnect(oper
);
1084 free_exited_clients(void *unused
)
1086 dlink_node
*ptr
, *next
;
1087 struct Client
*target_p
;
1089 DLINK_FOREACH_SAFE(ptr
, next
, dead_list
.head
)
1091 target_p
= ptr
->data
;
1093 #ifdef DEBUG_EXITED_CLIENTS
1095 struct abort_client
*abt
;
1099 DLINK_FOREACH(aptr
, abort_list
.head
)
1102 if(abt
->client
== target_p
)
1105 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1106 "On abort_list: %s stat: %u flags: %u/%u handler: %c",
1107 target_p
->name
, (unsigned int) target_p
->status
,
1108 target_p
->flags
, target_p
->flags2
, target_p
->handler
);
1109 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1110 "Please report this to the charybdis developers!");
1117 dlinkDestroy(ptr
, &dead_list
);
1123 if(ptr
->data
== NULL
)
1125 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1126 "Warning: null client on dead_list!");
1127 dlinkDestroy(ptr
, &dead_list
);
1130 release_client_state(target_p
);
1131 free_client(target_p
);
1132 dlinkDestroy(ptr
, &dead_list
);
1135 #ifdef DEBUG_EXITED_CLIENTS
1136 DLINK_FOREACH_SAFE(ptr
, next
, dead_remote_list
.head
)
1138 target_p
= ptr
->data
;
1140 if(ptr
->data
== NULL
)
1142 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1143 "Warning: null client on dead_list!");
1144 dlinkDestroy(ptr
, &dead_list
);
1147 release_client_state(target_p
);
1148 free_client(target_p
);
1149 dlinkDestroy(ptr
, &dead_remote_list
);
1156 ** Recursively send QUITs and SQUITs for source_p and all its dependent clients
1157 ** and servers to those servers that need them. A server needs the client
1158 ** QUITs if it can't figure them out from the SQUIT (ie pre-TS4) or if it
1159 ** isn't getting the SQUIT because of @#(*&@)# hostmasking. With TS4, once
1160 ** a link gets a SQUIT, it doesn't need any QUIT/SQUITs for clients depending
1161 ** on that one -orabidoo
1164 recurse_send_quits(struct Client
*client_p
, struct Client
*source_p
,
1165 struct Client
*to
, const char *comment1
,
1166 const char *comment
)
1168 struct Client
*target_p
;
1169 dlink_node
*ptr
, *ptr_next
;
1170 /* If this server can handle quit storm (QS) removal
1171 * of dependents, just send the SQUIT
1174 if(IsCapable(to
, CAP_QS
))
1176 sendto_one(to
, "SQUIT %s :%s",
1177 get_id(source_p
, to
), comment
);
1181 DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1183 target_p
= ptr
->data
;
1184 sendto_one(to
, ":%s QUIT :%s", target_p
->name
, comment1
);
1186 DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1188 target_p
= ptr
->data
;
1189 recurse_send_quits(client_p
, target_p
, to
, comment1
, comment
);
1191 sendto_one(to
, "SQUIT %s :%s", source_p
->name
, comment
);
1196 ** Remove all clients that depend on source_p; assumes all (S)QUITs have
1197 ** already been sent. we make sure to exit a server's dependent clients
1198 ** and servers before the server itself; exit_one_client takes care of
1199 ** actually removing things off llists. tweaked from +CSr31 -orabidoo
1202 * added sanity test code.... source_p->serv might be NULL...
1205 recurse_remove_clients(struct Client
*source_p
, const char *comment
)
1207 struct Client
*target_p
;
1208 dlink_node
*ptr
, *ptr_next
;
1213 if(source_p
->serv
== NULL
) /* oooops. uh this is actually a major bug */
1216 /* this is very ugly, but it saves cpu :P */
1217 if(ConfigFileEntry
.nick_delay
> 0)
1219 DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1221 target_p
= ptr
->data
;
1222 target_p
->flags
|= FLAGS_KILLED
;
1223 add_nd_entry(target_p
->name
);
1225 if(!IsDead(target_p
) && !IsClosing(target_p
))
1226 exit_remote_client(NULL
, target_p
, &me
, comment
);
1231 DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1233 target_p
= ptr
->data
;
1234 target_p
->flags
|= FLAGS_KILLED
;
1236 if(!IsDead(target_p
) && !IsClosing(target_p
))
1237 exit_remote_client(NULL
, target_p
, &me
, comment
);
1241 DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1243 target_p
= ptr
->data
;
1244 recurse_remove_clients(target_p
, comment
);
1245 qs_server(NULL
, target_p
, &me
, comment
);
1250 ** Remove *everything* that depends on source_p, from all lists, and sending
1251 ** all necessary QUITs and SQUITs. source_p itself is still on the lists,
1252 ** and its SQUITs have been sent except for the upstream one -orabidoo
1255 remove_dependents(struct Client
*client_p
,
1256 struct Client
*source_p
,
1257 struct Client
*from
, const char *comment
, const char *comment1
)
1260 dlink_node
*ptr
, *next
;
1262 DLINK_FOREACH_SAFE(ptr
, next
, serv_list
.head
)
1266 if(IsMe(to
) || to
== source_p
->from
||
1267 (to
== client_p
&& IsCapable(to
, CAP_QS
)))
1270 recurse_send_quits(client_p
, source_p
, to
, comment1
, comment
);
1273 recurse_remove_clients(source_p
, comment1
);
1277 exit_aborted_clients(void *unused
)
1279 struct abort_client
*abt
;
1280 dlink_node
*ptr
, *next
;
1281 DLINK_FOREACH_SAFE(ptr
, next
, abort_list
.head
)
1285 #ifdef DEBUG_EXITED_CLIENTS
1287 if(dlinkFind(abt
->client
, &dead_list
))
1290 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1291 "On dead_list: %s stat: %u flags: %u/%u handler: %c",
1292 abt
->client
->name
, (unsigned int) abt
->client
->status
,
1293 abt
->client
->flags
, abt
->client
->flags2
, abt
->client
->handler
);
1294 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1295 "Please report this to the charybdis developers!");
1301 s_assert(*((unsigned long*)abt
->client
) != 0xdeadbeef); /* This is lame but its a debug thing */
1302 dlinkDelete(ptr
, &abort_list
);
1304 if(IsAnyServer(abt
->client
))
1305 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1306 "Closing link to %s: %s",
1307 get_server_name(abt
->client
, HIDE_IP
), abt
->notice
);
1309 /* its no longer on abort list - we *must* remove
1310 * FLAGS_CLOSING otherwise exit_client() will not run --fl
1312 abt
->client
->flags
&= ~FLAGS_CLOSING
;
1313 exit_client(abt
->client
, abt
->client
, &me
, abt
->notice
);
1320 * dead_link - Adds client to a list of clients that need an exit_client()
1324 dead_link(struct Client
*client_p
)
1326 struct abort_client
*abt
;
1328 s_assert(!IsMe(client_p
));
1329 if(IsDead(client_p
) || IsClosing(client_p
) || IsMe(client_p
))
1332 abt
= (struct abort_client
*) MyMalloc(sizeof(struct abort_client
));
1334 if(client_p
->flags
& FLAGS_SENDQEX
)
1335 strlcpy(abt
->notice
, "Max SendQ exceeded", sizeof(abt
->notice
));
1337 ircsnprintf(abt
->notice
, sizeof(abt
->notice
), "Write error: %s", strerror(errno
));
1339 abt
->client
= client_p
;
1340 SetIOError(client_p
);
1342 SetClosing(client_p
);
1343 dlinkAdd(abt
, &abt
->node
, &abort_list
);
1347 /* This does the remove of the user from channels..local or remote */
1349 exit_generic_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1350 const char *comment
)
1352 dlink_node
*ptr
, *next_ptr
;
1354 if(IsOper(source_p
))
1355 dlinkFindDestroy(source_p
, &oper_list
);
1357 sendto_common_channels_local(source_p
, ":%s!%s@%s QUIT :%s",
1359 source_p
->username
, source_p
->host
, comment
);
1361 remove_user_from_channels(source_p
);
1363 /* Should not be in any channels now */
1364 s_assert(source_p
->user
->channel
.head
== NULL
);
1366 /* Clean up invitefield */
1367 DLINK_FOREACH_SAFE(ptr
, next_ptr
, source_p
->user
->invited
.head
)
1369 del_invite(ptr
->data
, source_p
);
1372 /* Clean up allow lists */
1373 del_all_accepts(source_p
);
1375 add_history(source_p
, 0);
1376 off_history(source_p
);
1378 monitor_signoff(source_p
);
1380 if(has_id(source_p
))
1381 del_from_id_hash(source_p
->id
, source_p
);
1383 del_from_hostname_hash(source_p
->orighost
, source_p
);
1384 del_from_client_hash(source_p
->name
, source_p
);
1385 remove_client_from_list(source_p
);
1389 * Assumes IsPerson(source_p) && !MyConnect(source_p)
1393 exit_remote_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1394 const char *comment
)
1396 exit_generic_client(client_p
, source_p
, from
, comment
);
1398 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1400 dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->users
);
1403 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1405 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1406 ":%s QUIT :%s", use_id(source_p
), comment
);
1407 sendto_server(client_p
, NULL
, NOCAPS
, CAP_TS6
,
1408 ":%s QUIT :%s", source_p
->name
, comment
);
1412 #ifdef DEBUG_EXITED_CLIENTS
1413 dlinkAddAlloc(source_p
, &dead_remote_list
);
1415 dlinkAddAlloc(source_p
, &dead_list
);
1417 return(CLIENT_EXITED
);
1421 * This assumes IsUnknown(source_p) == TRUE and MyConnect(source_p) == TRUE
1425 exit_unknown_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1426 const char *comment
)
1428 delete_auth_queries(source_p
);
1429 client_flush_input(source_p
);
1430 del_unknown_ip(source_p
);
1431 dlinkDelete(&source_p
->localClient
->tnode
, &unknown_list
);
1433 if(!IsIOError(source_p
))
1434 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)",
1435 source_p
->user
!= NULL
? source_p
->host
: "127.0.0.1",
1438 close_connection(source_p
);
1440 if(has_id(source_p
))
1441 del_from_id_hash(source_p
->id
, source_p
);
1443 del_from_hostname_hash(source_p
->host
, source_p
);
1444 del_from_client_hash(source_p
->name
, source_p
);
1445 remove_client_from_list(source_p
);
1447 dlinkAddAlloc(source_p
, &dead_list
);
1449 /* Note that we don't need to add unknowns to the dead_list */
1450 return(CLIENT_EXITED
);
1454 exit_remote_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1455 const char *comment
)
1457 static char comment1
[(HOSTLEN
*2)+2];
1458 static char newcomment
[BUFSIZE
];
1459 struct Client
*target_p
;
1461 if(ConfigServerHide
.flatten_links
)
1462 strcpy(comment1
, "*.net *.split");
1465 strcpy(comment1
, source_p
->servptr
->name
);
1466 strcat(comment1
, " ");
1467 strcat(comment1
, source_p
->name
);
1470 ircsnprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1471 from
->name
, comment
);
1473 if(source_p
->serv
!= NULL
)
1474 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1476 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1477 dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1481 dlinkFindDestroy(source_p
, &global_serv_list
);
1482 target_p
= source_p
->from
;
1484 if(target_p
!= NULL
&& IsServer(target_p
) && target_p
!= client_p
&&
1485 !IsMe(target_p
) && (source_p
->flags
& FLAGS_KILLED
) == 0)
1487 sendto_one(target_p
, ":%s SQUIT %s :%s",
1488 get_id(from
, target_p
), get_id(source_p
, target_p
),
1492 if(has_id(source_p
))
1493 del_from_id_hash(source_p
->id
, source_p
);
1495 del_from_client_hash(source_p
->name
, source_p
);
1496 remove_client_from_list(source_p
);
1497 scache_split(source_p
->serv
->nameinfo
);
1500 #ifdef DEBUG_EXITED_CLIENTS
1501 dlinkAddAlloc(source_p
, &dead_remote_list
);
1503 dlinkAddAlloc(source_p
, &dead_list
);
1509 qs_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1510 const char *comment
)
1512 struct Client
*target_p
;
1514 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1515 dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1519 dlinkFindDestroy(source_p
, &global_serv_list
);
1520 target_p
= source_p
->from
;
1522 if(has_id(source_p
))
1523 del_from_id_hash(source_p
->id
, source_p
);
1525 del_from_client_hash(source_p
->name
, source_p
);
1526 remove_client_from_list(source_p
);
1529 dlinkAddAlloc(source_p
, &dead_list
);
1534 exit_local_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1535 const char *comment
)
1537 static char comment1
[(HOSTLEN
*2)+2];
1538 static char newcomment
[BUFSIZE
];
1539 unsigned int sendk
, recvk
;
1541 dlinkDelete(&source_p
->localClient
->tnode
, &serv_list
);
1542 dlinkFindDestroy(source_p
, &global_serv_list
);
1544 unset_chcap_usage_counts(source_p
);
1545 sendk
= source_p
->localClient
->sendK
;
1546 recvk
= source_p
->localClient
->receiveK
;
1548 /* Always show source here, so the server notices show
1549 * which side initiated the split -- jilles
1551 ircsnprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1552 from
== source_p
? me
.name
: from
->name
, comment
);
1553 if (!IsIOError(source_p
))
1554 sendto_one(source_p
, "SQUIT %s :%s", use_id(source_p
),
1556 if(client_p
!= NULL
&& source_p
!= client_p
&& !IsIOError(source_p
))
1558 sendto_one(source_p
, "ERROR :Closing Link: 127.0.0.1 %s (%s)",
1559 source_p
->name
, comment
);
1562 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1563 dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1568 close_connection(source_p
);
1570 if(ConfigServerHide
.flatten_links
)
1571 strcpy(comment1
, "*.net *.split");
1574 strcpy(comment1
, source_p
->servptr
->name
);
1575 strcat(comment1
, " ");
1576 strcat(comment1
, source_p
->name
);
1579 if(source_p
->serv
!= NULL
)
1580 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1582 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "%s was connected"
1583 " for %ld seconds. %d/%d sendK/recvK.",
1584 source_p
->name
, CurrentTime
- source_p
->localClient
->firsttime
, sendk
, recvk
);
1586 ilog(L_SERVER
, "%s was connected for %ld seconds. %d/%d sendK/recvK.",
1587 source_p
->name
, CurrentTime
- source_p
->localClient
->firsttime
, sendk
, recvk
);
1589 if(has_id(source_p
))
1590 del_from_id_hash(source_p
->id
, source_p
);
1592 del_from_client_hash(source_p
->name
, source_p
);
1593 remove_client_from_list(source_p
);
1594 scache_split(source_p
->serv
->nameinfo
);
1597 dlinkAddAlloc(source_p
, &dead_list
);
1603 * This assumes IsPerson(source_p) == TRUE && MyConnect(source_p) == TRUE
1607 exit_local_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1608 const char *comment
)
1610 unsigned long on_for
;
1612 exit_generic_client(client_p
, source_p
, from
, comment
);
1613 clear_monitor(source_p
);
1615 s_assert(IsPerson(source_p
));
1616 client_flush_input(source_p
);
1617 dlinkDelete(&source_p
->localClient
->tnode
, &lclient_list
);
1618 dlinkDelete(&source_p
->lnode
, &me
.serv
->users
);
1620 if(IsOper(source_p
))
1621 dlinkFindDestroy(source_p
, &local_oper_list
);
1623 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
1624 "Client exiting: %s (%s@%s) [%s] [%s]",
1626 source_p
->username
, source_p
->host
, comment
,
1627 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255");
1629 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
1630 "CLIEXIT %s %s %s %s 0 %s",
1631 source_p
->name
, source_p
->username
, source_p
->host
,
1632 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255",
1635 on_for
= CurrentTime
- source_p
->localClient
->firsttime
;
1637 ilog(L_USER
, "%s (%3lu:%02lu:%02lu): %s!%s@%s %d/%d",
1638 myctime(CurrentTime
), on_for
/ 3600,
1639 (on_for
% 3600) / 60, on_for
% 60,
1640 source_p
->name
, source_p
->username
, source_p
->host
,
1641 source_p
->localClient
->sendK
, source_p
->localClient
->receiveK
);
1643 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)", source_p
->host
, comment
);
1644 close_connection(source_p
);
1646 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1648 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1649 ":%s QUIT :%s", use_id(source_p
), comment
);
1650 sendto_server(client_p
, NULL
, NOCAPS
, CAP_TS6
,
1651 ":%s QUIT :%s", source_p
->name
, comment
);
1655 dlinkAddAlloc(source_p
, &dead_list
);
1656 return(CLIENT_EXITED
);
1661 ** exit_client - This is old "m_bye". Name changed, because this is not a
1662 ** protocol function, but a general server utility function.
1664 ** This function exits a client of *any* type (user, server, etc)
1665 ** from this server. Also, this generates all necessary prototol
1666 ** messages that this exit may cause.
1668 ** 1) If the client is a local client, then this implicitly
1669 ** exits all other clients depending on this connection (e.g.
1670 ** remote clients having 'from'-field that points to this.
1672 ** 2) If the client is a remote client, then only this is exited.
1674 ** For convenience, this function returns a suitable value for
1675 ** m_function return value:
1677 ** CLIENT_EXITED if (client_p == source_p)
1678 ** 0 if (client_p != source_p)
1681 exit_client(struct Client
*client_p
, /* The local client originating the
1682 * exit or NULL, if this exit is
1683 * generated by this server for
1685 * This will not get any of the
1686 * generated messages. */
1687 struct Client
*source_p
, /* Client exiting */
1688 struct Client
*from
, /* Client firing off this Exit,
1690 const char *comment
/* Reason for the exit */
1693 hook_data_client_exit hdata
;
1694 if(IsClosing(source_p
))
1697 /* note, this HAS to be here, when we exit a client we attempt to
1698 * send them data, if this generates a write error we must *not* add
1699 * them to the abort list --fl
1701 SetClosing(source_p
);
1703 hdata
.local_link
= client_p
;
1704 hdata
.target
= source_p
;
1706 hdata
.comment
= comment
;
1707 call_hook(h_client_exit
, &hdata
);
1709 if(MyConnect(source_p
))
1711 /* Local clients of various types */
1712 if(IsPerson(source_p
))
1713 return exit_local_client(client_p
, source_p
, from
, comment
);
1714 else if(IsServer(source_p
))
1715 return exit_local_server(client_p
, source_p
, from
, comment
);
1716 /* IsUnknown || IsConnecting || IsHandShake */
1717 else if(!IsReject(source_p
))
1718 return exit_unknown_client(client_p
, source_p
, from
, comment
);
1723 if(IsPerson(source_p
))
1724 return exit_remote_client(client_p
, source_p
, from
, comment
);
1725 else if(IsServer(source_p
))
1726 return exit_remote_server(client_p
, source_p
, from
, comment
);
1733 * Count up local client memory
1736 /* XXX one common Client list now */
1738 count_local_client_memory(size_t * count
, size_t * local_client_memory_used
)
1741 BlockHeapUsage(lclient_heap
, count
, NULL
, &lusage
);
1742 *local_client_memory_used
= lusage
+ (*count
* (sizeof(MemBlock
) + sizeof(struct Client
)));
1746 * Count up remote client memory
1749 count_remote_client_memory(size_t * count
, size_t * remote_client_memory_used
)
1751 size_t lcount
, rcount
;
1752 BlockHeapUsage(lclient_heap
, &lcount
, NULL
, NULL
);
1753 BlockHeapUsage(client_heap
, &rcount
, NULL
, NULL
);
1754 *count
= rcount
- lcount
;
1755 *remote_client_memory_used
= *count
* (sizeof(MemBlock
) + sizeof(struct Client
));
1760 * accept processing, this adds a form of "caller ID" to ircd
1762 * If a client puts themselves into "caller ID only" mode,
1763 * only clients that match a client pointer they have put on
1764 * the accept list will be allowed to message them.
1766 * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1768 * [target.allow_list] -> [ source1 ] -> [source2 ]
1770 * i.e. a target will have a link list of source pointers it will allow
1771 * each source client then has a back pointer pointing back
1772 * to the client that has it on its accept list.
1773 * This allows for exit_one_client to remove these now bogus entries
1774 * from any client having an accept on them.
1779 * inputs - pointer to exiting client
1781 * side effects - Walk through given clients allow_list and on_allow_list
1782 * remove all references to this client
1785 del_all_accepts(struct Client
*client_p
)
1788 dlink_node
*next_ptr
;
1789 struct Client
*target_p
;
1791 if(MyClient(client_p
) && client_p
->localClient
->allow_list
.head
)
1793 /* clear this clients accept list, and remove them from
1794 * everyones on_accept_list
1796 DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->localClient
->allow_list
.head
)
1798 target_p
= ptr
->data
;
1799 dlinkFindDestroy(client_p
, &target_p
->on_allow_list
);
1800 dlinkDestroy(ptr
, &client_p
->localClient
->allow_list
);
1804 /* remove this client from everyones accept list */
1805 DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
1807 target_p
= ptr
->data
;
1808 dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
1809 dlinkDestroy(ptr
, &client_p
->on_allow_list
);
1814 * show_ip() - asks if the true IP shoudl be shown when source is
1815 * askin for info about target
1817 * Inputs - source_p who is asking
1818 * - target_p who do we want the info on
1819 * Output - returns 1 if clear IP can be showed, otherwise 0
1820 * Side Effects - none
1824 show_ip(struct Client
*source_p
, struct Client
*target_p
)
1826 if(IsAnyServer(target_p
))
1828 #ifndef HIDE_SERVERS_IPS
1829 if(source_p
== NULL
|| IsOper(source_p
))
1834 else if(IsIPSpoof(target_p
))
1836 /* source == NULL indicates message is being sent
1839 if(!ConfigFileEntry
.hide_spoof_ips
&&
1840 (source_p
== NULL
|| MyOper(source_p
)))
1844 else if(IsDynSpoof(target_p
) && (source_p
!= NULL
&& !IsOper(source_p
)))
1851 show_ip_conf(struct ConfItem
*aconf
, struct Client
*source_p
)
1853 if(IsConfDoSpoofIp(aconf
))
1855 if(!ConfigFileEntry
.hide_spoof_ips
&& MyOper(source_p
))
1870 * side effects - Creates a block heap for struct Users
1873 static BlockHeap
*user_heap
;
1877 user_heap
= BlockHeapCreate(sizeof(struct User
), USER_HEAP_SIZE
);
1885 * inputs - pointer to client struct
1886 * output - pointer to struct User
1887 * side effects - add's an User information block to a client
1888 * if it was not previously allocated.
1891 make_user(struct Client
*client_p
)
1895 user
= client_p
->user
;
1898 user
= (struct User
*) BlockHeapAlloc(user_heap
);
1900 client_p
->user
= user
;
1908 * inputs - pointer to client struct
1909 * output - pointer to server_t
1910 * side effects - add's an Server information block to a client
1911 * if it was not previously allocated.
1914 make_server(struct Client
*client_p
)
1916 server_t
*serv
= client_p
->serv
;
1920 serv
= (server_t
*) MyMalloc(sizeof(server_t
));
1921 client_p
->serv
= serv
;
1923 return client_p
->serv
;
1929 * inputs - pointer to user struct
1930 * - pointer to client struct
1932 * side effects - Decrease user reference count by one and release block,
1933 * if count reaches 0
1936 free_user(struct User
*user
, struct Client
*client_p
)
1938 if(--user
->refcnt
<= 0)
1941 MyFree((char *) user
->away
);
1945 if(user
->refcnt
< 0 || user
->invited
.head
|| user
->channel
.head
)
1947 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1948 "* %#lx user (%s!%s@%s) %#lx %#lx %#lx %lu %d *",
1949 (unsigned long) client_p
,
1950 client_p
? client_p
->
1954 (unsigned long) user
,
1955 (unsigned long) user
->invited
.head
,
1956 (unsigned long) user
->channel
.head
,
1957 dlink_list_length(&user
->channel
),
1959 s_assert(!user
->refcnt
);
1960 s_assert(!user
->invited
.head
);
1961 s_assert(!user
->channel
.head
);
1964 BlockHeapFree(user_heap
, user
);
1973 for(i
= 0; i
< 3; i
++)
1974 current_uid
[i
] = me
.id
[i
];
1976 for(i
= 3; i
< 9; i
++)
1977 current_uid
[i
] = 'A';
1979 current_uid
[9] = '\0';
1988 for(i
= 8; i
> 3; i
--)
1990 if(current_uid
[i
] == 'Z')
1992 current_uid
[i
] = '0';
1995 else if(current_uid
[i
] != '9')
2001 current_uid
[i
] = 'A';
2004 /* if this next if() triggers, we're fucked. */
2005 if(current_uid
[3] == 'Z')
2007 current_uid
[i
] = 'A';
2018 * Close the physical connection. This function must make
2019 * MyConnect(client_p) == FALSE, and set client_p->from == NULL.
2022 close_connection(struct Client
*client_p
)
2024 s_assert(client_p
!= NULL
);
2025 if(client_p
== NULL
)
2028 s_assert(MyConnect(client_p
));
2029 if(!MyConnect(client_p
))
2032 if(IsServer(client_p
))
2034 struct server_conf
*server_p
;
2036 ServerStats
->is_sv
++;
2037 ServerStats
->is_sbs
+= client_p
->localClient
->sendB
;
2038 ServerStats
->is_sbr
+= client_p
->localClient
->receiveB
;
2039 ServerStats
->is_sks
+= client_p
->localClient
->sendK
;
2040 ServerStats
->is_skr
+= client_p
->localClient
->receiveK
;
2041 ServerStats
->is_sti
+= CurrentTime
- client_p
->localClient
->firsttime
;
2042 if(ServerStats
->is_sbs
> 2047)
2044 ServerStats
->is_sks
+= (ServerStats
->is_sbs
>> 10);
2045 ServerStats
->is_sbs
&= 0x3ff;
2047 if(ServerStats
->is_sbr
> 2047)
2049 ServerStats
->is_skr
+= (ServerStats
->is_sbr
>> 10);
2050 ServerStats
->is_sbr
&= 0x3ff;
2054 * If the connection has been up for a long amount of time, schedule
2055 * a 'quick' reconnect, else reset the next-connect cycle.
2057 if((server_p
= find_server_conf(client_p
->name
)) != NULL
)
2060 * Reschedule a faster reconnect, if this was a automatically
2061 * connected configuration entry. (Note that if we have had
2062 * a rehash in between, the status has been changed to
2063 * CONF_ILLEGAL). But only do this if it was a "good" link.
2065 server_p
->hold
= time(NULL
);
2067 (server_p
->hold
- client_p
->localClient
->lasttime
>
2068 HANGONGOODLINK
) ? HANGONRETRYDELAY
: ConFreq(server_p
->class);
2072 else if(IsClient(client_p
))
2074 ServerStats
->is_cl
++;
2075 ServerStats
->is_cbs
+= client_p
->localClient
->sendB
;
2076 ServerStats
->is_cbr
+= client_p
->localClient
->receiveB
;
2077 ServerStats
->is_cks
+= client_p
->localClient
->sendK
;
2078 ServerStats
->is_ckr
+= client_p
->localClient
->receiveK
;
2079 ServerStats
->is_cti
+= CurrentTime
- client_p
->localClient
->firsttime
;
2080 if(ServerStats
->is_cbs
> 2047)
2082 ServerStats
->is_cks
+= (ServerStats
->is_cbs
>> 10);
2083 ServerStats
->is_cbs
&= 0x3ff;
2085 if(ServerStats
->is_cbr
> 2047)
2087 ServerStats
->is_ckr
+= (ServerStats
->is_cbr
>> 10);
2088 ServerStats
->is_cbr
&= 0x3ff;
2092 ServerStats
->is_ni
++;
2094 if(-1 < client_p
->localClient
->fd
)
2096 /* attempt to flush any pending dbufs. Evil, but .. -- adrian */
2097 if(!IsIOError(client_p
))
2098 send_queued_write(client_p
->localClient
->fd
, client_p
);
2100 comm_close(client_p
->localClient
->fd
);
2101 client_p
->localClient
->fd
= -1;
2104 if(-1 < client_p
->localClient
->ctrlfd
)
2106 comm_close(client_p
->localClient
->ctrlfd
);
2107 client_p
->localClient
->ctrlfd
= -1;
2110 linebuf_donebuf(&client_p
->localClient
->buf_sendq
);
2111 linebuf_donebuf(&client_p
->localClient
->buf_recvq
);
2112 detach_conf(client_p
);
2114 /* XXX shouldnt really be done here. */
2115 detach_server_conf(client_p
);
2117 client_p
->from
= NULL
; /* ...this should catch them! >:) --msa */
2118 ClearMyConnect(client_p
);
2119 SetIOError(client_p
);
2125 error_exit_client(struct Client
*client_p
, int error
)
2128 * ...hmm, with non-blocking sockets we might get
2129 * here from quite valid reasons, although.. why
2130 * would select report "data available" when there
2131 * wasn't... so, this must be an error anyway... --msa
2132 * actually, EOF occurs when read() returns 0 and
2133 * in due course, select() returns that fd as ready
2134 * for reading even though it ends up being an EOF. -avalon
2137 int current_error
= comm_get_sockerr(client_p
->localClient
->fd
);
2139 SetIOError(client_p
);
2141 if(IsServer(client_p
) || IsHandshake(client_p
))
2143 int connected
= CurrentTime
- client_p
->localClient
->firsttime
;
2147 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2148 "Server %s closed the connection",
2149 get_server_name(client_p
, SHOW_IP
));
2151 ilog(L_SERVER
, "Server %s closed the connection",
2152 log_client_name(client_p
, SHOW_IP
));
2156 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2157 "Lost connection to %s: %s",
2158 client_p
->name
, strerror(current_error
));
2159 ilog(L_SERVER
, "Lost connection to %s: %s",
2160 log_client_name(client_p
, SHOW_IP
), strerror(current_error
));
2163 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
2164 "%s had been connected for %d day%s, %2d:%02d:%02d",
2165 client_p
->name
, connected
/ 86400,
2166 (connected
/ 86400 == 1) ? "" : "s",
2167 (connected
% 86400) / 3600,
2168 (connected
% 3600) / 60, connected
% 60);
2172 strlcpy(errmsg
, "Remote host closed the connection", sizeof(errmsg
));
2174 ircsnprintf(errmsg
, sizeof(errmsg
), "Read error: %s", strerror(current_error
));
2176 exit_client(client_p
, client_p
, &me
, errmsg
);