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
->F
= NULL
;
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
->F
->fd
>= 0)
226 comm_close(client_p
->localClient
->F
->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
;
307 if(!MyConnect(client_p
) || IsDead(client_p
))
310 if(IsPerson(client_p
))
312 if(!IsExemptKline(client_p
) &&
313 GlobalSetOptions
.idletime
&&
315 !IsIdlelined(client_p
) &&
316 ((CurrentTime
- client_p
->localClient
->last
) > GlobalSetOptions
.idletime
))
318 struct ConfItem
*aconf
;
321 aconf
->status
= CONF_KILL
;
323 DupString(aconf
->host
, client_p
->host
);
324 DupString(aconf
->passwd
, "idle exceeder");
325 DupString(aconf
->user
, client_p
->username
);
327 aconf
->hold
= CurrentTime
+ 60;
328 add_temp_kline(aconf
);
329 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
330 "Idle time limit exceeded for %s - temp k-lining",
331 get_client_name(client_p
, HIDE_IP
));
333 exit_client(client_p
, client_p
, &me
, aconf
->passwd
);
338 ping
= get_client_ping(client_p
);
340 if(ping
< (CurrentTime
- client_p
->localClient
->lasttime
))
343 * If the client/server hasnt talked to us in 2*ping seconds
344 * and it has a ping time, then close its connection.
346 if(((CurrentTime
- client_p
->localClient
->lasttime
) >= (2 * ping
)
347 && (client_p
->flags
& FLAGS_PINGSENT
)))
349 if(IsServer(client_p
))
351 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
352 "No response from %s, closing link",
353 get_server_name(client_p
, HIDE_IP
));
355 "No response from %s, closing link",
356 log_client_name(client_p
, HIDE_IP
));
358 (void) ircsnprintf(scratch
, sizeof(scratch
),
359 "Ping timeout: %d seconds",
360 (int) (CurrentTime
- client_p
->localClient
->lasttime
));
362 exit_client(client_p
, client_p
, &me
, scratch
);
365 else if((client_p
->flags
& FLAGS_PINGSENT
) == 0)
368 * if we havent PINGed the connection and we havent
369 * heard from it in a while, PING it to make sure
372 client_p
->flags
|= FLAGS_PINGSENT
;
373 /* not nice but does the job */
374 client_p
->localClient
->lasttime
= CurrentTime
- ping
;
375 sendto_one(client_p
, "PING :%s", me
.name
);
384 * check_unknowns_list
386 * inputs - pointer to list of unknown clients
388 * side effects - unknown clients get marked for termination after n seconds
391 check_unknowns_list(dlink_list
* list
)
393 dlink_node
*ptr
, *next_ptr
;
394 struct Client
*client_p
;
397 DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
399 client_p
= ptr
->data
;
401 if(IsDead(client_p
) || IsClosing(client_p
))
405 * Check UNKNOWN connections - if they have been in this state
406 * for > 30s, close them.
409 timeout
= IsAnyServer(client_p
) ? ConfigFileEntry
.connect_timeout
: 30;
410 if((CurrentTime
- client_p
->localClient
->firsttime
) > timeout
)
412 if(IsAnyServer(client_p
))
414 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
415 "No response from %s, closing link",
416 get_server_name(client_p
, HIDE_IP
));
418 "No response from %s, closing link",
419 log_client_name(client_p
, HIDE_IP
));
421 exit_client(client_p
, client_p
, &me
, "Connection timed out");
427 notify_banned_client(struct Client
*client_p
, struct ConfItem
*aconf
, int ban
)
429 static const char conn_closed
[] = "Connection closed";
430 static const char d_lined
[] = "D-lined";
431 static const char k_lined
[] = "K-lined";
432 static const char g_lined
[] = "G-lined";
433 const char *reason
= NULL
;
434 const char *exit_reason
= conn_closed
;
436 if(ConfigFileEntry
.kline_with_reason
&& !EmptyString(aconf
->passwd
))
438 reason
= aconf
->passwd
;
439 exit_reason
= aconf
->passwd
;
443 switch (aconf
->status
)
457 if(ban
== D_LINED
&& !IsPerson(client_p
))
458 sendto_one(client_p
, "NOTICE DLINE :*** You have been D-lined");
460 sendto_one(client_p
, form_str(ERR_YOUREBANNEDCREEP
),
461 me
.name
, client_p
->name
, reason
);
463 exit_client(client_p
, client_p
, &me
,
464 EmptyString(ConfigFileEntry
.kline_reason
) ? exit_reason
:
465 ConfigFileEntry
.kline_reason
);
472 * side effects - Check all connections for a pending k/d/gline against the
473 * client, exit the client if found.
476 check_banned_lines(void)
478 struct Client
*client_p
; /* current local client_p being examined */
479 struct ConfItem
*aconf
= NULL
;
480 dlink_node
*ptr
, *next_ptr
;
482 DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
484 client_p
= ptr
->data
;
489 /* if there is a returned struct ConfItem then kill it */
490 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
, client_p
->localClient
->ip
.ss_family
)))
492 if(aconf
->status
& CONF_EXEMPTDLINE
)
495 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
496 "DLINE active for %s",
497 get_client_name(client_p
, HIDE_IP
));
499 notify_banned_client(client_p
, aconf
, D_LINED
);
500 continue; /* and go examine next fd/client_p */
503 if(!IsPerson(client_p
))
506 if((aconf
= find_kline(client_p
)) != NULL
)
508 if(IsExemptKline(client_p
))
510 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
511 "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
512 get_client_name(client_p
, HIDE_IP
),
513 aconf
->user
, aconf
->host
);
517 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
518 "KLINE active for %s",
519 get_client_name(client_p
, HIDE_IP
));
520 notify_banned_client(client_p
, aconf
, K_LINED
);
523 else if((aconf
= find_gline(client_p
)) != NULL
)
525 if(IsExemptKline(client_p
))
527 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
528 "GLINE over-ruled for %s, client is kline_exempt [%s@%s]",
529 get_client_name(client_p
, HIDE_IP
),
530 aconf
->user
, aconf
->host
);
534 if(IsExemptGline(client_p
))
536 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
537 "GLINE over-ruled for %s, client is gline_exempt [%s@%s]",
538 get_client_name(client_p
, HIDE_IP
),
539 aconf
->user
, aconf
->host
);
543 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
544 "GLINE active for %s",
545 get_client_name(client_p
, HIDE_IP
));
547 notify_banned_client(client_p
, aconf
, G_LINED
);
550 else if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
552 if(IsExemptKline(client_p
))
554 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
555 "XLINE over-ruled for %s, client is kline_exempt [%s]",
556 get_client_name(client_p
, HIDE_IP
),
561 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
562 get_client_name(client_p
, HIDE_IP
));
564 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
569 /* also check the unknowns list for new dlines */
570 DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
572 client_p
= ptr
->data
;
574 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)))
576 if(aconf
->status
& CONF_EXEMPTDLINE
)
579 notify_banned_client(client_p
, aconf
, D_LINED
);
585 /* check_klines_event()
589 * side effects - check_klines() is called, kline_queued unset
592 check_klines_event(void *unused
)
602 * side effects - all clients will be checked for klines
607 struct Client
*client_p
;
608 struct ConfItem
*aconf
;
610 dlink_node
*next_ptr
;
612 DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
614 client_p
= ptr
->data
;
616 if(IsMe(client_p
) || !IsPerson(client_p
))
619 if((aconf
= find_kline(client_p
)) != NULL
)
621 if(IsExemptKline(client_p
))
623 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
624 "KLINE over-ruled for %s, client is kline_exempt",
625 get_client_name(client_p
, HIDE_IP
));
629 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
630 "KLINE active for %s",
631 get_client_name(client_p
, HIDE_IP
));
633 notify_banned_client(client_p
, aconf
, K_LINED
);
643 * side effects - all clients will be checked for glines
648 struct Client
*client_p
;
649 struct ConfItem
*aconf
;
651 dlink_node
*next_ptr
;
653 DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
655 client_p
= ptr
->data
;
657 if(IsMe(client_p
) || !IsPerson(client_p
))
660 if((aconf
= find_gline(client_p
)) != NULL
)
662 if(IsExemptKline(client_p
))
664 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
665 "GLINE over-ruled for %s, client is kline_exempt",
666 get_client_name(client_p
, HIDE_IP
));
670 if(IsExemptGline(client_p
))
672 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
673 "GLINE over-ruled for %s, client is gline_exempt",
674 get_client_name(client_p
, HIDE_IP
));
678 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
679 "GLINE active for %s",
680 get_client_name(client_p
, HIDE_IP
));
682 notify_banned_client(client_p
, aconf
, K_LINED
);
692 * side effects - all clients will be checked for dlines
697 struct Client
*client_p
;
698 struct ConfItem
*aconf
;
700 dlink_node
*next_ptr
;
702 DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
704 client_p
= ptr
->data
;
709 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
711 if(aconf
->status
& CONF_EXEMPTDLINE
)
714 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
715 "DLINE active for %s",
716 get_client_name(client_p
, HIDE_IP
));
718 notify_banned_client(client_p
, aconf
, D_LINED
);
723 /* dlines need to be checked against unknowns too */
724 DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
726 client_p
= ptr
->data
;
728 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
730 if(aconf
->status
& CONF_EXEMPTDLINE
)
733 notify_banned_client(client_p
, aconf
, D_LINED
);
742 * side effects - all clients will be checked for xlines
747 struct Client
*client_p
;
748 struct ConfItem
*aconf
;
750 dlink_node
*next_ptr
;
752 DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
754 client_p
= ptr
->data
;
756 if(IsMe(client_p
) || !IsPerson(client_p
))
759 if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
761 if(IsExemptKline(client_p
))
763 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
764 "XLINE over-ruled for %s, client is kline_exempt",
765 get_client_name(client_p
, HIDE_IP
));
769 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
770 get_client_name(client_p
, HIDE_IP
));
772 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
779 * update_client_exit_stats
781 * input - pointer to client
786 update_client_exit_stats(struct Client
*client_p
)
788 if(IsServer(client_p
))
790 sendto_realops_snomask(SNO_EXTERNAL
, L_ALL
,
791 "Server %s split from %s",
792 client_p
->name
, client_p
->servptr
->name
);
793 if(HasSentEob(client_p
))
796 else if(IsClient(client_p
))
801 if(IsInvisible(client_p
))
805 if(splitchecking
&& !splitmode
)
806 check_splitmode(NULL
);
810 * release_client_state
812 * input - pointer to client to release
817 release_client_state(struct Client
*client_p
)
819 if(client_p
->user
!= NULL
)
821 free_user(client_p
->user
, client_p
); /* try this here */
825 if(client_p
->serv
->user
!= NULL
)
826 free_user(client_p
->serv
->user
, client_p
);
827 if(client_p
->serv
->fullcaps
)
828 MyFree(client_p
->serv
->fullcaps
);
829 MyFree(client_p
->serv
);
834 * remove_client_from_list
835 * inputs - point to client to remove
837 * side effects - taken the code from ExitOneClient() for this
838 * and placed it here. - avalon
841 remove_client_from_list(struct Client
*client_p
)
843 s_assert(NULL
!= client_p
);
848 /* A client made with make_client()
849 * is on the unknown_list until removed.
850 * If it =does= happen to exit before its removed from that list
851 * and its =not= on the global_client_list, it will core here.
852 * short circuit that case now -db
854 if(client_p
->node
.prev
== NULL
&& client_p
->node
.next
== NULL
)
857 dlinkDelete(&client_p
->node
, &global_client_list
);
859 update_client_exit_stats(client_p
);
864 * find_person - find person by (nick)name.
865 * inputs - pointer to name
866 * output - return client pointer
870 find_person(const char *name
)
872 struct Client
*c2ptr
;
874 c2ptr
= find_client(name
);
876 if(c2ptr
&& IsPerson(c2ptr
))
882 find_named_person(const char *name
)
884 struct Client
*c2ptr
;
886 c2ptr
= find_named_client(name
);
888 if(c2ptr
&& IsPerson(c2ptr
))
895 * find_chasing - find the client structure for a nick name (user)
896 * using history mechanism if necessary. If the client is not found,
897 * an error message (NO SUCH NICK) is generated. If the client was found
898 * through the history, chasing will be 1 and otherwise 0.
901 find_chasing(struct Client
*source_p
, const char *user
, int *chasing
)
905 if(MyClient(source_p
))
906 who
= find_named_person(user
);
908 who
= find_person(user
);
913 if(who
|| IsDigit(*user
))
916 if(!(who
= get_history(user
, (long) KILLCHASETIMELIMIT
)))
918 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
919 form_str(ERR_NOSUCHNICK
), user
);
928 * get_client_name - Return the name of the client
929 * for various tracking and
930 * admin purposes. The main purpose of this function is to
931 * return the "socket host" name of the client, if that
932 * differs from the advertised name (other than case).
933 * But, this can be used to any client structure.
936 * Watch out the allocation of "nbuf", if either source_p->name
937 * or source_p->sockhost gets changed into pointers instead of
938 * directly allocated within the structure...
941 * Function return either a pointer to the structure (source_p) or
942 * to internal buffer (nbuf). *NEVER* use the returned pointer
943 * to modify what it points!!!
947 get_client_name(struct Client
*client
, int showip
)
949 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
951 s_assert(NULL
!= client
);
955 if(MyConnect(client
))
957 if(!irccmp(client
->name
, client
->host
))
960 if(ConfigFileEntry
.hide_spoof_ips
&&
961 showip
== SHOW_IP
&& IsIPSpoof(client
))
963 #ifdef HIDE_SERVERS_IPS
964 if(IsAnyServer(client
))
968 /* And finally, let's get the host information, ip or name */
972 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
973 client
->name
, client
->username
,
977 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
978 client
->name
, client
->username
);
981 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
982 client
->name
, client
->username
, client
->host
);
987 /* As pointed out by Adel Mezibra
988 * Neph|l|m@EFnet. Was missing a return here.
994 get_server_name(struct Client
*target_p
, int showip
)
996 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
1001 if(!MyConnect(target_p
) || !irccmp(target_p
->name
, target_p
->host
))
1002 return target_p
->name
;
1004 #ifdef HIDE_SERVERS_IPS
1005 if(EmptyString(target_p
->name
))
1007 ircsnprintf(nbuf
, sizeof(nbuf
), "[%s@255.255.255.255]",
1008 target_p
->username
);
1012 return target_p
->name
;
1018 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
1019 target_p
->name
, target_p
->username
,
1020 target_p
->sockhost
);
1024 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
1025 target_p
->name
, target_p
->username
);
1028 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
1029 target_p
->name
, target_p
->username
,
1036 /* log_client_name()
1038 * This version is the same as get_client_name, but doesnt contain the
1039 * code that will hide IPs always. This should be used for logfiles.
1042 log_client_name(struct Client
*target_p
, int showip
)
1044 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
1046 if(target_p
== NULL
)
1049 if(MyConnect(target_p
))
1051 if(irccmp(target_p
->name
, target_p
->host
) == 0)
1052 return target_p
->name
;
1057 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
1058 target_p
->username
, target_p
->sockhost
);
1062 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
1063 target_p
->name
, target_p
->username
);
1066 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
1067 target_p
->username
, target_p
->host
);
1073 return target_p
->name
;
1076 /* is_remote_connect - Returns whether a server was /connect'ed by a remote
1077 * oper (send notices netwide) */
1079 is_remote_connect(struct Client
*client_p
)
1081 struct Client
*oper
;
1083 if (client_p
->serv
== NULL
)
1085 oper
= find_named_person(client_p
->serv
->by
);
1086 return oper
!= NULL
&& IsOper(oper
) && !MyConnect(oper
);
1090 free_exited_clients(void *unused
)
1092 dlink_node
*ptr
, *next
;
1093 struct Client
*target_p
;
1095 DLINK_FOREACH_SAFE(ptr
, next
, dead_list
.head
)
1097 target_p
= ptr
->data
;
1099 #ifdef DEBUG_EXITED_CLIENTS
1101 struct abort_client
*abt
;
1105 DLINK_FOREACH(aptr
, abort_list
.head
)
1108 if(abt
->client
== target_p
)
1111 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1112 "On abort_list: %s stat: %u flags: %u/%u handler: %c",
1113 target_p
->name
, (unsigned int) target_p
->status
,
1114 target_p
->flags
, target_p
->flags2
, target_p
->handler
);
1115 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1116 "Please report this to the charybdis developers!");
1123 dlinkDestroy(ptr
, &dead_list
);
1129 if(ptr
->data
== NULL
)
1131 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1132 "Warning: null client on dead_list!");
1133 dlinkDestroy(ptr
, &dead_list
);
1136 release_client_state(target_p
);
1137 free_client(target_p
);
1138 dlinkDestroy(ptr
, &dead_list
);
1141 #ifdef DEBUG_EXITED_CLIENTS
1142 DLINK_FOREACH_SAFE(ptr
, next
, dead_remote_list
.head
)
1144 target_p
= ptr
->data
;
1146 if(ptr
->data
== NULL
)
1148 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1149 "Warning: null client on dead_list!");
1150 dlinkDestroy(ptr
, &dead_list
);
1153 release_client_state(target_p
);
1154 free_client(target_p
);
1155 dlinkDestroy(ptr
, &dead_remote_list
);
1162 ** Recursively send QUITs and SQUITs for source_p and all its dependent clients
1163 ** and servers to those servers that need them. A server needs the client
1164 ** QUITs if it can't figure them out from the SQUIT (ie pre-TS4) or if it
1165 ** isn't getting the SQUIT because of @#(*&@)# hostmasking. With TS4, once
1166 ** a link gets a SQUIT, it doesn't need any QUIT/SQUITs for clients depending
1167 ** on that one -orabidoo
1170 recurse_send_quits(struct Client
*client_p
, struct Client
*source_p
,
1171 struct Client
*to
, const char *comment1
,
1172 const char *comment
)
1174 struct Client
*target_p
;
1175 dlink_node
*ptr
, *ptr_next
;
1176 /* If this server can handle quit storm (QS) removal
1177 * of dependents, just send the SQUIT
1180 if(IsCapable(to
, CAP_QS
))
1182 sendto_one(to
, "SQUIT %s :%s",
1183 get_id(source_p
, to
), comment
);
1187 DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1189 target_p
= ptr
->data
;
1190 sendto_one(to
, ":%s QUIT :%s", target_p
->name
, comment1
);
1192 DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1194 target_p
= ptr
->data
;
1195 recurse_send_quits(client_p
, target_p
, to
, comment1
, comment
);
1197 sendto_one(to
, "SQUIT %s :%s", source_p
->name
, comment
);
1202 ** Remove all clients that depend on source_p; assumes all (S)QUITs have
1203 ** already been sent. we make sure to exit a server's dependent clients
1204 ** and servers before the server itself; exit_one_client takes care of
1205 ** actually removing things off llists. tweaked from +CSr31 -orabidoo
1208 * added sanity test code.... source_p->serv might be NULL...
1211 recurse_remove_clients(struct Client
*source_p
, const char *comment
)
1213 struct Client
*target_p
;
1214 dlink_node
*ptr
, *ptr_next
;
1219 if(source_p
->serv
== NULL
) /* oooops. uh this is actually a major bug */
1222 /* this is very ugly, but it saves cpu :P */
1223 if(ConfigFileEntry
.nick_delay
> 0)
1225 DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1227 target_p
= ptr
->data
;
1228 target_p
->flags
|= FLAGS_KILLED
;
1229 add_nd_entry(target_p
->name
);
1231 if(!IsDead(target_p
) && !IsClosing(target_p
))
1232 exit_remote_client(NULL
, target_p
, &me
, comment
);
1237 DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1239 target_p
= ptr
->data
;
1240 target_p
->flags
|= FLAGS_KILLED
;
1242 if(!IsDead(target_p
) && !IsClosing(target_p
))
1243 exit_remote_client(NULL
, target_p
, &me
, comment
);
1247 DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1249 target_p
= ptr
->data
;
1250 recurse_remove_clients(target_p
, comment
);
1251 qs_server(NULL
, target_p
, &me
, comment
);
1256 ** Remove *everything* that depends on source_p, from all lists, and sending
1257 ** all necessary QUITs and SQUITs. source_p itself is still on the lists,
1258 ** and its SQUITs have been sent except for the upstream one -orabidoo
1261 remove_dependents(struct Client
*client_p
,
1262 struct Client
*source_p
,
1263 struct Client
*from
, const char *comment
, const char *comment1
)
1266 dlink_node
*ptr
, *next
;
1268 DLINK_FOREACH_SAFE(ptr
, next
, serv_list
.head
)
1272 if(IsMe(to
) || to
== source_p
->from
||
1273 (to
== client_p
&& IsCapable(to
, CAP_QS
)))
1276 recurse_send_quits(client_p
, source_p
, to
, comment1
, comment
);
1279 recurse_remove_clients(source_p
, comment1
);
1283 exit_aborted_clients(void *unused
)
1285 struct abort_client
*abt
;
1286 dlink_node
*ptr
, *next
;
1287 DLINK_FOREACH_SAFE(ptr
, next
, abort_list
.head
)
1291 #ifdef DEBUG_EXITED_CLIENTS
1293 if(dlinkFind(abt
->client
, &dead_list
))
1296 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1297 "On dead_list: %s stat: %u flags: %u/%u handler: %c",
1298 abt
->client
->name
, (unsigned int) abt
->client
->status
,
1299 abt
->client
->flags
, abt
->client
->flags2
, abt
->client
->handler
);
1300 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1301 "Please report this to the charybdis developers!");
1307 s_assert(*((unsigned long*)abt
->client
) != 0xdeadbeef); /* This is lame but its a debug thing */
1308 dlinkDelete(ptr
, &abort_list
);
1310 if(IsAnyServer(abt
->client
))
1311 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1312 "Closing link to %s: %s",
1313 get_server_name(abt
->client
, HIDE_IP
), abt
->notice
);
1315 /* its no longer on abort list - we *must* remove
1316 * FLAGS_CLOSING otherwise exit_client() will not run --fl
1318 abt
->client
->flags
&= ~FLAGS_CLOSING
;
1319 exit_client(abt
->client
, abt
->client
, &me
, abt
->notice
);
1326 * dead_link - Adds client to a list of clients that need an exit_client()
1330 dead_link(struct Client
*client_p
)
1332 struct abort_client
*abt
;
1334 s_assert(!IsMe(client_p
));
1335 if(IsDead(client_p
) || IsClosing(client_p
) || IsMe(client_p
))
1338 abt
= (struct abort_client
*) MyMalloc(sizeof(struct abort_client
));
1340 if(client_p
->flags
& FLAGS_SENDQEX
)
1341 strlcpy(abt
->notice
, "Max SendQ exceeded", sizeof(abt
->notice
));
1343 ircsnprintf(abt
->notice
, sizeof(abt
->notice
), "Write error: %s", strerror(errno
));
1345 abt
->client
= client_p
;
1346 SetIOError(client_p
);
1348 SetClosing(client_p
);
1349 dlinkAdd(abt
, &abt
->node
, &abort_list
);
1353 /* This does the remove of the user from channels..local or remote */
1355 exit_generic_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1356 const char *comment
)
1358 dlink_node
*ptr
, *next_ptr
;
1360 if(IsOper(source_p
))
1361 dlinkFindDestroy(source_p
, &oper_list
);
1363 sendto_common_channels_local(source_p
, ":%s!%s@%s QUIT :%s",
1365 source_p
->username
, source_p
->host
, comment
);
1367 remove_user_from_channels(source_p
);
1369 /* Should not be in any channels now */
1370 s_assert(source_p
->user
->channel
.head
== NULL
);
1372 /* Clean up invitefield */
1373 DLINK_FOREACH_SAFE(ptr
, next_ptr
, source_p
->user
->invited
.head
)
1375 del_invite(ptr
->data
, source_p
);
1378 /* Clean up allow lists */
1379 del_all_accepts(source_p
);
1381 add_history(source_p
, 0);
1382 off_history(source_p
);
1384 monitor_signoff(source_p
);
1386 if(has_id(source_p
))
1387 del_from_id_hash(source_p
->id
, source_p
);
1389 del_from_hostname_hash(source_p
->orighost
, source_p
);
1390 del_from_client_hash(source_p
->name
, source_p
);
1391 remove_client_from_list(source_p
);
1395 * Assumes IsPerson(source_p) && !MyConnect(source_p)
1399 exit_remote_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1400 const char *comment
)
1402 exit_generic_client(client_p
, source_p
, from
, comment
);
1404 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1406 dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->users
);
1409 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1411 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1412 ":%s QUIT :%s", use_id(source_p
), comment
);
1413 sendto_server(client_p
, NULL
, NOCAPS
, CAP_TS6
,
1414 ":%s QUIT :%s", source_p
->name
, comment
);
1418 #ifdef DEBUG_EXITED_CLIENTS
1419 dlinkAddAlloc(source_p
, &dead_remote_list
);
1421 dlinkAddAlloc(source_p
, &dead_list
);
1423 return(CLIENT_EXITED
);
1427 * This assumes IsUnknown(source_p) == TRUE and MyConnect(source_p) == TRUE
1431 exit_unknown_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1432 const char *comment
)
1434 delete_auth_queries(source_p
);
1435 client_flush_input(source_p
);
1436 del_unknown_ip(source_p
);
1437 dlinkDelete(&source_p
->localClient
->tnode
, &unknown_list
);
1439 if(!IsIOError(source_p
))
1440 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)",
1441 source_p
->user
!= NULL
? source_p
->host
: "127.0.0.1",
1444 close_connection(source_p
);
1446 if(has_id(source_p
))
1447 del_from_id_hash(source_p
->id
, source_p
);
1449 del_from_hostname_hash(source_p
->host
, source_p
);
1450 del_from_client_hash(source_p
->name
, source_p
);
1451 remove_client_from_list(source_p
);
1453 dlinkAddAlloc(source_p
, &dead_list
);
1455 /* Note that we don't need to add unknowns to the dead_list */
1456 return(CLIENT_EXITED
);
1460 exit_remote_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1461 const char *comment
)
1463 static char comment1
[(HOSTLEN
*2)+2];
1464 static char newcomment
[BUFSIZE
];
1465 struct Client
*target_p
;
1467 if(ConfigServerHide
.flatten_links
)
1468 strcpy(comment1
, "*.net *.split");
1471 strcpy(comment1
, source_p
->servptr
->name
);
1472 strcat(comment1
, " ");
1473 strcat(comment1
, source_p
->name
);
1476 ircsnprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1477 from
->name
, comment
);
1479 if(source_p
->serv
!= NULL
)
1480 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1482 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1483 dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1487 dlinkFindDestroy(source_p
, &global_serv_list
);
1488 target_p
= source_p
->from
;
1490 if(target_p
!= NULL
&& IsServer(target_p
) && target_p
!= client_p
&&
1491 !IsMe(target_p
) && (source_p
->flags
& FLAGS_KILLED
) == 0)
1493 sendto_one(target_p
, ":%s SQUIT %s :%s",
1494 get_id(from
, target_p
), get_id(source_p
, target_p
),
1498 if(has_id(source_p
))
1499 del_from_id_hash(source_p
->id
, source_p
);
1501 del_from_client_hash(source_p
->name
, source_p
);
1502 remove_client_from_list(source_p
);
1503 scache_split(source_p
->serv
->nameinfo
);
1506 #ifdef DEBUG_EXITED_CLIENTS
1507 dlinkAddAlloc(source_p
, &dead_remote_list
);
1509 dlinkAddAlloc(source_p
, &dead_list
);
1515 qs_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1516 const char *comment
)
1518 struct Client
*target_p
;
1520 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1521 dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1525 dlinkFindDestroy(source_p
, &global_serv_list
);
1526 target_p
= source_p
->from
;
1528 if(has_id(source_p
))
1529 del_from_id_hash(source_p
->id
, source_p
);
1531 del_from_client_hash(source_p
->name
, source_p
);
1532 remove_client_from_list(source_p
);
1535 dlinkAddAlloc(source_p
, &dead_list
);
1540 exit_local_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1541 const char *comment
)
1543 static char comment1
[(HOSTLEN
*2)+2];
1544 static char newcomment
[BUFSIZE
];
1545 unsigned int sendk
, recvk
;
1547 dlinkDelete(&source_p
->localClient
->tnode
, &serv_list
);
1548 dlinkFindDestroy(source_p
, &global_serv_list
);
1550 unset_chcap_usage_counts(source_p
);
1551 sendk
= source_p
->localClient
->sendK
;
1552 recvk
= source_p
->localClient
->receiveK
;
1554 /* Always show source here, so the server notices show
1555 * which side initiated the split -- jilles
1557 ircsnprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1558 from
== source_p
? me
.name
: from
->name
, comment
);
1559 if (!IsIOError(source_p
))
1560 sendto_one(source_p
, "SQUIT %s :%s", use_id(source_p
),
1562 if(client_p
!= NULL
&& source_p
!= client_p
&& !IsIOError(source_p
))
1564 sendto_one(source_p
, "ERROR :Closing Link: 127.0.0.1 %s (%s)",
1565 source_p
->name
, comment
);
1568 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1569 dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1574 close_connection(source_p
);
1576 if(ConfigServerHide
.flatten_links
)
1577 strcpy(comment1
, "*.net *.split");
1580 strcpy(comment1
, source_p
->servptr
->name
);
1581 strcat(comment1
, " ");
1582 strcat(comment1
, source_p
->name
);
1585 if(source_p
->serv
!= NULL
)
1586 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1588 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "%s was connected"
1589 " for %ld seconds. %d/%d sendK/recvK.",
1590 source_p
->name
, CurrentTime
- source_p
->localClient
->firsttime
, sendk
, recvk
);
1592 ilog(L_SERVER
, "%s was connected for %ld seconds. %d/%d sendK/recvK.",
1593 source_p
->name
, CurrentTime
- source_p
->localClient
->firsttime
, sendk
, recvk
);
1595 if(has_id(source_p
))
1596 del_from_id_hash(source_p
->id
, source_p
);
1598 del_from_client_hash(source_p
->name
, source_p
);
1599 remove_client_from_list(source_p
);
1600 scache_split(source_p
->serv
->nameinfo
);
1603 dlinkAddAlloc(source_p
, &dead_list
);
1609 * This assumes IsPerson(source_p) == TRUE && MyConnect(source_p) == TRUE
1613 exit_local_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1614 const char *comment
)
1616 unsigned long on_for
;
1618 exit_generic_client(client_p
, source_p
, from
, comment
);
1619 clear_monitor(source_p
);
1621 s_assert(IsPerson(source_p
));
1622 client_flush_input(source_p
);
1623 dlinkDelete(&source_p
->localClient
->tnode
, &lclient_list
);
1624 dlinkDelete(&source_p
->lnode
, &me
.serv
->users
);
1626 if(IsOper(source_p
))
1627 dlinkFindDestroy(source_p
, &local_oper_list
);
1629 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
1630 "Client exiting: %s (%s@%s) [%s] [%s]",
1632 source_p
->username
, source_p
->host
, comment
,
1633 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255");
1635 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
1636 "CLIEXIT %s %s %s %s 0 %s",
1637 source_p
->name
, source_p
->username
, source_p
->host
,
1638 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255",
1641 on_for
= CurrentTime
- source_p
->localClient
->firsttime
;
1643 ilog(L_USER
, "%s (%3lu:%02lu:%02lu): %s!%s@%s %d/%d",
1644 myctime(CurrentTime
), on_for
/ 3600,
1645 (on_for
% 3600) / 60, on_for
% 60,
1646 source_p
->name
, source_p
->username
, source_p
->host
,
1647 source_p
->localClient
->sendK
, source_p
->localClient
->receiveK
);
1649 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)", source_p
->host
, comment
);
1650 close_connection(source_p
);
1652 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1654 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1655 ":%s QUIT :%s", use_id(source_p
), comment
);
1656 sendto_server(client_p
, NULL
, NOCAPS
, CAP_TS6
,
1657 ":%s QUIT :%s", source_p
->name
, comment
);
1661 dlinkAddAlloc(source_p
, &dead_list
);
1662 return(CLIENT_EXITED
);
1667 ** exit_client - This is old "m_bye". Name changed, because this is not a
1668 ** protocol function, but a general server utility function.
1670 ** This function exits a client of *any* type (user, server, etc)
1671 ** from this server. Also, this generates all necessary prototol
1672 ** messages that this exit may cause.
1674 ** 1) If the client is a local client, then this implicitly
1675 ** exits all other clients depending on this connection (e.g.
1676 ** remote clients having 'from'-field that points to this.
1678 ** 2) If the client is a remote client, then only this is exited.
1680 ** For convenience, this function returns a suitable value for
1681 ** m_function return value:
1683 ** CLIENT_EXITED if (client_p == source_p)
1684 ** 0 if (client_p != source_p)
1687 exit_client(struct Client
*client_p
, /* The local client originating the
1688 * exit or NULL, if this exit is
1689 * generated by this server for
1691 * This will not get any of the
1692 * generated messages. */
1693 struct Client
*source_p
, /* Client exiting */
1694 struct Client
*from
, /* Client firing off this Exit,
1696 const char *comment
/* Reason for the exit */
1699 hook_data_client_exit hdata
;
1700 if(IsClosing(source_p
))
1703 /* note, this HAS to be here, when we exit a client we attempt to
1704 * send them data, if this generates a write error we must *not* add
1705 * them to the abort list --fl
1707 SetClosing(source_p
);
1709 hdata
.local_link
= client_p
;
1710 hdata
.target
= source_p
;
1712 hdata
.comment
= comment
;
1713 call_hook(h_client_exit
, &hdata
);
1715 if(MyConnect(source_p
))
1717 /* Local clients of various types */
1718 if(IsPerson(source_p
))
1719 return exit_local_client(client_p
, source_p
, from
, comment
);
1720 else if(IsServer(source_p
))
1721 return exit_local_server(client_p
, source_p
, from
, comment
);
1722 /* IsUnknown || IsConnecting || IsHandShake */
1723 else if(!IsReject(source_p
))
1724 return exit_unknown_client(client_p
, source_p
, from
, comment
);
1729 if(IsPerson(source_p
))
1730 return exit_remote_client(client_p
, source_p
, from
, comment
);
1731 else if(IsServer(source_p
))
1732 return exit_remote_server(client_p
, source_p
, from
, comment
);
1739 * Count up local client memory
1742 /* XXX one common Client list now */
1744 count_local_client_memory(size_t * count
, size_t * local_client_memory_used
)
1747 BlockHeapUsage(lclient_heap
, count
, NULL
, &lusage
);
1748 *local_client_memory_used
= lusage
+ (*count
* (sizeof(MemBlock
) + sizeof(struct Client
)));
1752 * Count up remote client memory
1755 count_remote_client_memory(size_t * count
, size_t * remote_client_memory_used
)
1757 size_t lcount
, rcount
;
1758 BlockHeapUsage(lclient_heap
, &lcount
, NULL
, NULL
);
1759 BlockHeapUsage(client_heap
, &rcount
, NULL
, NULL
);
1760 *count
= rcount
- lcount
;
1761 *remote_client_memory_used
= *count
* (sizeof(MemBlock
) + sizeof(struct Client
));
1766 * accept processing, this adds a form of "caller ID" to ircd
1768 * If a client puts themselves into "caller ID only" mode,
1769 * only clients that match a client pointer they have put on
1770 * the accept list will be allowed to message them.
1772 * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1774 * [target.allow_list] -> [ source1 ] -> [source2 ]
1776 * i.e. a target will have a link list of source pointers it will allow
1777 * each source client then has a back pointer pointing back
1778 * to the client that has it on its accept list.
1779 * This allows for exit_one_client to remove these now bogus entries
1780 * from any client having an accept on them.
1785 * inputs - pointer to exiting client
1787 * side effects - Walk through given clients allow_list and on_allow_list
1788 * remove all references to this client
1791 del_all_accepts(struct Client
*client_p
)
1794 dlink_node
*next_ptr
;
1795 struct Client
*target_p
;
1797 if(MyClient(client_p
) && client_p
->localClient
->allow_list
.head
)
1799 /* clear this clients accept list, and remove them from
1800 * everyones on_accept_list
1802 DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->localClient
->allow_list
.head
)
1804 target_p
= ptr
->data
;
1805 dlinkFindDestroy(client_p
, &target_p
->on_allow_list
);
1806 dlinkDestroy(ptr
, &client_p
->localClient
->allow_list
);
1810 /* remove this client from everyones accept list */
1811 DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
1813 target_p
= ptr
->data
;
1814 dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
1815 dlinkDestroy(ptr
, &client_p
->on_allow_list
);
1820 * show_ip() - asks if the true IP shoudl be shown when source is
1821 * askin for info about target
1823 * Inputs - source_p who is asking
1824 * - target_p who do we want the info on
1825 * Output - returns 1 if clear IP can be showed, otherwise 0
1826 * Side Effects - none
1830 show_ip(struct Client
*source_p
, struct Client
*target_p
)
1832 if(IsAnyServer(target_p
))
1834 #ifndef HIDE_SERVERS_IPS
1835 if(source_p
== NULL
|| IsOper(source_p
))
1840 else if(IsIPSpoof(target_p
))
1842 /* source == NULL indicates message is being sent
1845 if(!ConfigFileEntry
.hide_spoof_ips
&&
1846 (source_p
== NULL
|| MyOper(source_p
)))
1850 else if(IsDynSpoof(target_p
) && (source_p
!= NULL
&& !IsOper(source_p
)))
1857 show_ip_conf(struct ConfItem
*aconf
, struct Client
*source_p
)
1859 if(IsConfDoSpoofIp(aconf
))
1861 if(!ConfigFileEntry
.hide_spoof_ips
&& MyOper(source_p
))
1876 * side effects - Creates a block heap for struct Users
1879 static BlockHeap
*user_heap
;
1883 user_heap
= BlockHeapCreate(sizeof(struct User
), USER_HEAP_SIZE
);
1891 * inputs - pointer to client struct
1892 * output - pointer to struct User
1893 * side effects - add's an User information block to a client
1894 * if it was not previously allocated.
1897 make_user(struct Client
*client_p
)
1901 user
= client_p
->user
;
1904 user
= (struct User
*) BlockHeapAlloc(user_heap
);
1906 client_p
->user
= user
;
1914 * inputs - pointer to client struct
1915 * output - pointer to server_t
1916 * side effects - add's an Server information block to a client
1917 * if it was not previously allocated.
1920 make_server(struct Client
*client_p
)
1922 server_t
*serv
= client_p
->serv
;
1926 serv
= (server_t
*) MyMalloc(sizeof(server_t
));
1927 client_p
->serv
= serv
;
1929 return client_p
->serv
;
1935 * inputs - pointer to user struct
1936 * - pointer to client struct
1938 * side effects - Decrease user reference count by one and release block,
1939 * if count reaches 0
1942 free_user(struct User
*user
, struct Client
*client_p
)
1944 if(--user
->refcnt
<= 0)
1947 MyFree((char *) user
->away
);
1951 if(user
->refcnt
< 0 || user
->invited
.head
|| user
->channel
.head
)
1953 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1954 "* %#lx user (%s!%s@%s) %#lx %#lx %#lx %lu %d *",
1955 (unsigned long) client_p
,
1956 client_p
? client_p
->
1960 (unsigned long) user
,
1961 (unsigned long) user
->invited
.head
,
1962 (unsigned long) user
->channel
.head
,
1963 dlink_list_length(&user
->channel
),
1965 s_assert(!user
->refcnt
);
1966 s_assert(!user
->invited
.head
);
1967 s_assert(!user
->channel
.head
);
1970 BlockHeapFree(user_heap
, user
);
1979 for(i
= 0; i
< 3; i
++)
1980 current_uid
[i
] = me
.id
[i
];
1982 for(i
= 3; i
< 9; i
++)
1983 current_uid
[i
] = 'A';
1985 current_uid
[9] = '\0';
1994 for(i
= 8; i
> 3; i
--)
1996 if(current_uid
[i
] == 'Z')
1998 current_uid
[i
] = '0';
2001 else if(current_uid
[i
] != '9')
2007 current_uid
[i
] = 'A';
2010 /* if this next if() triggers, we're fucked. */
2011 if(current_uid
[3] == 'Z')
2013 current_uid
[i
] = 'A';
2024 * Close the physical connection. This function must make
2025 * MyConnect(client_p) == FALSE, and set client_p->from == NULL.
2028 close_connection(struct Client
*client_p
)
2030 s_assert(client_p
!= NULL
);
2031 if(client_p
== NULL
)
2034 s_assert(MyConnect(client_p
));
2035 if(!MyConnect(client_p
))
2038 if(IsServer(client_p
))
2040 struct server_conf
*server_p
;
2042 ServerStats
->is_sv
++;
2043 ServerStats
->is_sbs
+= client_p
->localClient
->sendB
;
2044 ServerStats
->is_sbr
+= client_p
->localClient
->receiveB
;
2045 ServerStats
->is_sks
+= client_p
->localClient
->sendK
;
2046 ServerStats
->is_skr
+= client_p
->localClient
->receiveK
;
2047 ServerStats
->is_sti
+= CurrentTime
- client_p
->localClient
->firsttime
;
2048 if(ServerStats
->is_sbs
> 2047)
2050 ServerStats
->is_sks
+= (ServerStats
->is_sbs
>> 10);
2051 ServerStats
->is_sbs
&= 0x3ff;
2053 if(ServerStats
->is_sbr
> 2047)
2055 ServerStats
->is_skr
+= (ServerStats
->is_sbr
>> 10);
2056 ServerStats
->is_sbr
&= 0x3ff;
2060 * If the connection has been up for a long amount of time, schedule
2061 * a 'quick' reconnect, else reset the next-connect cycle.
2063 if((server_p
= find_server_conf(client_p
->name
)) != NULL
)
2066 * Reschedule a faster reconnect, if this was a automatically
2067 * connected configuration entry. (Note that if we have had
2068 * a rehash in between, the status has been changed to
2069 * CONF_ILLEGAL). But only do this if it was a "good" link.
2071 server_p
->hold
= time(NULL
);
2073 (server_p
->hold
- client_p
->localClient
->lasttime
>
2074 HANGONGOODLINK
) ? HANGONRETRYDELAY
: ConFreq(server_p
->class);
2078 else if(IsClient(client_p
))
2080 ServerStats
->is_cl
++;
2081 ServerStats
->is_cbs
+= client_p
->localClient
->sendB
;
2082 ServerStats
->is_cbr
+= client_p
->localClient
->receiveB
;
2083 ServerStats
->is_cks
+= client_p
->localClient
->sendK
;
2084 ServerStats
->is_ckr
+= client_p
->localClient
->receiveK
;
2085 ServerStats
->is_cti
+= CurrentTime
- client_p
->localClient
->firsttime
;
2086 if(ServerStats
->is_cbs
> 2047)
2088 ServerStats
->is_cks
+= (ServerStats
->is_cbs
>> 10);
2089 ServerStats
->is_cbs
&= 0x3ff;
2091 if(ServerStats
->is_cbr
> 2047)
2093 ServerStats
->is_ckr
+= (ServerStats
->is_cbr
>> 10);
2094 ServerStats
->is_cbr
&= 0x3ff;
2098 ServerStats
->is_ni
++;
2100 if(client_p
->localClient
->F
)
2102 /* attempt to flush any pending dbufs. Evil, but .. -- adrian */
2103 if(!IsIOError(client_p
))
2104 send_queued_write(client_p
->localClient
->F
->fd
, client_p
);
2106 comm_close(client_p
->localClient
->F
->fd
);
2107 client_p
->localClient
->F
= NULL
;
2110 if(-1 < client_p
->localClient
->ctrlfd
)
2112 comm_close(client_p
->localClient
->ctrlfd
);
2113 client_p
->localClient
->ctrlfd
= -1;
2116 linebuf_donebuf(&client_p
->localClient
->buf_sendq
);
2117 linebuf_donebuf(&client_p
->localClient
->buf_recvq
);
2118 detach_conf(client_p
);
2120 /* XXX shouldnt really be done here. */
2121 detach_server_conf(client_p
);
2123 client_p
->from
= NULL
; /* ...this should catch them! >:) --msa */
2124 ClearMyConnect(client_p
);
2125 SetIOError(client_p
);
2131 error_exit_client(struct Client
*client_p
, int error
)
2134 * ...hmm, with non-blocking sockets we might get
2135 * here from quite valid reasons, although.. why
2136 * would select report "data available" when there
2137 * wasn't... so, this must be an error anyway... --msa
2138 * actually, EOF occurs when read() returns 0 and
2139 * in due course, select() returns that fd as ready
2140 * for reading even though it ends up being an EOF. -avalon
2143 int current_error
= comm_get_sockerr(client_p
->localClient
->F
->fd
);
2145 SetIOError(client_p
);
2147 if(IsServer(client_p
) || IsHandshake(client_p
))
2151 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2152 "Server %s closed the connection",
2153 get_server_name(client_p
, SHOW_IP
));
2155 ilog(L_SERVER
, "Server %s closed the connection",
2156 log_client_name(client_p
, SHOW_IP
));
2160 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2161 "Lost connection to %s: %s",
2162 client_p
->name
, strerror(current_error
));
2163 ilog(L_SERVER
, "Lost connection to %s: %s",
2164 log_client_name(client_p
, SHOW_IP
), strerror(current_error
));
2169 strlcpy(errmsg
, "Remote host closed the connection", sizeof(errmsg
));
2171 ircsnprintf(errmsg
, sizeof(errmsg
), "Read error: %s", strerror(current_error
));
2173 exit_client(client_p
, client_p
, &me
, errmsg
);