2 * ircd-ratbox: A slightly useful 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
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
24 * $Id: client.c 3514 2007-06-06 16:25:21Z nenolod $
35 #include "irc_string.h"
36 #include "sprintf_irc.h"
44 #include "s_newconf.h"
60 #include "blacklist.h"
63 #define DEBUG_EXITED_CLIENTS
65 static void check_pings_list(dlink_list
* list
);
66 static void check_unknowns_list(dlink_list
* list
);
67 static void free_exited_clients(void *unused
);
68 static void exit_aborted_clients(void *unused
);
70 static int exit_remote_client(struct Client
*, struct Client
*, struct Client
*,const char *);
71 static int exit_remote_server(struct Client
*, struct Client
*, struct Client
*,const char *);
72 static int exit_local_client(struct Client
*, struct Client
*, struct Client
*,const char *);
73 static int exit_unknown_client(struct Client
*, struct Client
*, struct Client
*,const char *);
74 static int exit_local_server(struct Client
*, struct Client
*, struct Client
*,const char *);
75 static int qs_server(struct Client
*, struct Client
*, struct Client
*, const char *comment
);
77 static EVH check_pings
;
79 extern BlockHeap
*client_heap
;
80 extern BlockHeap
*lclient_heap
;
81 extern BlockHeap
*pclient_heap
;
83 extern char current_uid
[IDLEN
];
93 #ifdef DEBUG_EXITED_CLIENTS
94 static dlink_list dead_remote_list
;
100 struct Client
*client
;
101 char notice
[REASONLEN
];
104 static dlink_list abort_list
;
112 * side effects - initialize client free memory
118 * start off the check ping event .. -- adrian
119 * Every 30 seconds is plenty -- db
121 client_heap
= BlockHeapCreate(sizeof(struct Client
), CLIENT_HEAP_SIZE
);
122 lclient_heap
= BlockHeapCreate(sizeof(struct LocalUser
), LCLIENT_HEAP_SIZE
);
123 pclient_heap
= BlockHeapCreate(sizeof(struct PreClient
), PCLIENT_HEAP_SIZE
);
124 eventAddIsh("check_pings", check_pings
, NULL
, 30);
125 eventAddIsh("free_exited_clients", &free_exited_clients
, NULL
, 4);
126 eventAddIsh("exit_aborted_clients", exit_aborted_clients
, NULL
, 1);
131 * make_client - create a new Client struct and set it to initial state.
133 * from == NULL, create local client (a client connected
136 * from, create remote client (behind a socket
137 * associated with the client defined by
138 * 'from'). ('from' is a local client!!).
141 make_client(struct Client
*from
)
143 struct Client
*client_p
= NULL
;
144 struct LocalUser
*localClient
;
146 client_p
= BlockHeapAlloc(client_heap
);
150 client_p
->from
= client_p
; /* 'from' of local client is self! */
152 localClient
= (struct LocalUser
*) BlockHeapAlloc(lclient_heap
);
153 SetMyConnect(client_p
);
154 client_p
->localClient
= localClient
;
156 client_p
->localClient
->lasttime
= client_p
->localClient
->firsttime
= CurrentTime
;
158 client_p
->localClient
->fd
= -1;
159 client_p
->localClient
->ctrlfd
= -1;
161 client_p
->preClient
= (struct PreClient
*) BlockHeapAlloc(pclient_heap
);
163 /* as good a place as any... */
164 dlinkAdd(client_p
, &client_p
->localClient
->tnode
, &unknown_list
);
167 { /* from is not NULL */
168 client_p
->localClient
= NULL
;
169 client_p
->preClient
= NULL
;
170 client_p
->from
= from
; /* 'from' of local client is self! */
173 SetUnknown(client_p
);
174 strcpy(client_p
->username
, "unknown");
180 free_pre_client(struct Client
*client_p
)
182 struct Blacklist
*blptr
;
184 s_assert(NULL
!= client_p
);
186 if(client_p
->preClient
== NULL
)
189 blptr
= client_p
->preClient
->dnsbl_listed
;
191 unref_blacklist(blptr
);
192 abort_blacklist_queries(client_p
);
193 BlockHeapFree(pclient_heap
, client_p
->preClient
);
194 client_p
->preClient
= NULL
;
198 free_local_client(struct Client
*client_p
)
200 s_assert(NULL
!= client_p
);
201 s_assert(&me
!= client_p
);
203 if(client_p
->localClient
== NULL
)
207 * clean up extra sockets from P-lines which have been discarded.
209 if(client_p
->localClient
->listener
)
211 s_assert(0 < client_p
->localClient
->listener
->ref_count
);
212 if(0 == --client_p
->localClient
->listener
->ref_count
213 && !client_p
->localClient
->listener
->active
)
214 free_listener(client_p
->localClient
->listener
);
215 client_p
->localClient
->listener
= 0;
218 if(client_p
->localClient
->fd
>= 0)
219 comm_close(client_p
->localClient
->fd
);
221 if(client_p
->localClient
->passwd
)
223 memset(client_p
->localClient
->passwd
, 0,
224 strlen(client_p
->localClient
->passwd
));
225 MyFree(client_p
->localClient
->passwd
);
228 MyFree(client_p
->localClient
->challenge
);
229 MyFree(client_p
->localClient
->fullcaps
);
230 MyFree(client_p
->localClient
->opername
);
231 MyFree(client_p
->localClient
->mangledhost
);
233 BlockHeapFree(lclient_heap
, client_p
->localClient
);
234 client_p
->localClient
= NULL
;
238 free_client(struct Client
*client_p
)
240 s_assert(NULL
!= client_p
);
241 s_assert(&me
!= client_p
);
242 free_local_client(client_p
);
243 free_pre_client(client_p
);
244 BlockHeapFree(client_heap
, client_p
);
248 * check_pings - go through the local client list and check activity
249 * kill off stuff that should die
251 * inputs - NOT USED (from event)
252 * output - next time_t when check_pings() should be called again
256 * A PING can be sent to clients as necessary.
258 * Client/Server ping outs are handled.
262 * Addon from adrian. We used to call this after nextping seconds,
263 * however I've changed it to run once a second. This is only for
264 * PING timeouts, not K/etc-line checks (thanks dianora!). Having it
265 * run once a second makes life a lot easier - when a new client connects
266 * and they need a ping in 4 seconds, if nextping was set to 20 seconds
267 * we end up waiting 20 seconds. This is stupid. :-)
268 * I will optimise (hah!) check_pings() once I've finished working on
269 * tidying up other network IO evilnesses.
274 check_pings(void *notused
)
276 check_pings_list(&lclient_list
);
277 check_pings_list(&serv_list
);
278 check_unknowns_list(&unknown_list
);
284 * inputs - pointer to list to check
289 check_pings_list(dlink_list
* list
)
291 char scratch
[32]; /* way too generous but... */
292 struct Client
*client_p
; /* current local client_p being examined */
293 int ping
= 0; /* ping time value from client */
294 dlink_node
*ptr
, *next_ptr
;
296 DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
298 client_p
= ptr
->data
;
301 ** Note: No need to notify opers here. It's
302 ** already done when "FLAGS_DEADSOCKET" is set.
304 if(!MyConnect(client_p
) || IsDead(client_p
))
307 if(IsPerson(client_p
))
309 if(!IsExemptKline(client_p
) &&
310 GlobalSetOptions
.idletime
&&
312 !IsIdlelined(client_p
) &&
313 ((CurrentTime
- client_p
->localClient
->last
) > GlobalSetOptions
.idletime
))
315 struct ConfItem
*aconf
;
318 aconf
->status
= CONF_KILL
;
320 DupString(aconf
->host
, client_p
->host
);
321 DupString(aconf
->passwd
, "idle exceeder");
322 DupString(aconf
->user
, client_p
->username
);
324 aconf
->hold
= CurrentTime
+ 60;
325 add_temp_kline(aconf
);
326 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
327 "Idle time limit exceeded for %s - temp k-lining",
328 get_client_name(client_p
, HIDE_IP
));
330 exit_client(client_p
, client_p
, &me
, aconf
->passwd
);
335 if(!IsRegistered(client_p
))
336 ping
= ConfigFileEntry
.connect_timeout
;
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(IsAnyServer(client_p
))
351 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: 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
;
396 DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
398 client_p
= ptr
->data
;
400 if(IsDead(client_p
) || IsClosing(client_p
))
404 * Check UNKNOWN connections - if they have been in this state
405 * for > 30s, close them.
408 if((CurrentTime
- client_p
->localClient
->firsttime
) > 30)
409 exit_client(client_p
, client_p
, &me
, "Connection timed out");
414 notify_banned_client(struct Client
*client_p
, struct ConfItem
*aconf
, int ban
)
416 static const char conn_closed
[] = "Connection closed";
417 static const char d_lined
[] = "D-lined";
418 static const char k_lined
[] = "K-lined";
419 static const char g_lined
[] = "G-lined";
420 const char *reason
= NULL
;
421 const char *exit_reason
= conn_closed
;
423 if(ConfigFileEntry
.kline_with_reason
&& !EmptyString(aconf
->passwd
))
425 reason
= aconf
->passwd
;
426 exit_reason
= aconf
->passwd
;
430 switch (aconf
->status
)
444 if(ban
== D_LINED
&& !IsPerson(client_p
))
445 sendto_one(client_p
, "NOTICE DLINE :*** You have been D-lined");
447 sendto_one(client_p
, form_str(ERR_YOUREBANNEDCREEP
),
448 me
.name
, client_p
->name
, reason
);
450 exit_client(client_p
, client_p
, &me
,
451 EmptyString(ConfigFileEntry
.kline_reason
) ? exit_reason
:
452 ConfigFileEntry
.kline_reason
);
459 * side effects - Check all connections for a pending k/d/gline against the
460 * client, exit the client if found.
463 check_banned_lines(void)
465 struct Client
*client_p
; /* current local client_p being examined */
466 struct ConfItem
*aconf
= NULL
;
467 dlink_node
*ptr
, *next_ptr
;
469 DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
471 client_p
= ptr
->data
;
476 /* if there is a returned struct ConfItem then kill it */
477 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
, client_p
->localClient
->ip
.ss_family
)))
479 if(aconf
->status
& CONF_EXEMPTDLINE
)
482 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
483 "DLINE active for %s",
484 get_client_name(client_p
, HIDE_IP
));
486 notify_banned_client(client_p
, aconf
, D_LINED
);
487 continue; /* and go examine next fd/client_p */
490 if(!IsPerson(client_p
))
493 if((aconf
= find_kline(client_p
)) != NULL
)
495 if(IsExemptKline(client_p
))
497 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
498 "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
499 get_client_name(client_p
, HIDE_IP
),
500 aconf
->user
, aconf
->host
);
504 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
505 "KLINE active for %s",
506 get_client_name(client_p
, HIDE_IP
));
507 notify_banned_client(client_p
, aconf
, K_LINED
);
510 else if((aconf
= find_gline(client_p
)) != NULL
)
512 if(IsExemptKline(client_p
))
514 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
515 "GLINE over-ruled for %s, client is kline_exempt [%s@%s]",
516 get_client_name(client_p
, HIDE_IP
),
517 aconf
->user
, aconf
->host
);
521 if(IsExemptGline(client_p
))
523 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
524 "GLINE over-ruled for %s, client is gline_exempt [%s@%s]",
525 get_client_name(client_p
, HIDE_IP
),
526 aconf
->user
, aconf
->host
);
530 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
531 "GLINE active for %s",
532 get_client_name(client_p
, HIDE_IP
));
534 notify_banned_client(client_p
, aconf
, G_LINED
);
537 else if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
539 if(IsExemptKline(client_p
))
541 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
542 "XLINE over-ruled for %s, client is kline_exempt [%s]",
543 get_client_name(client_p
, HIDE_IP
),
548 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
549 get_client_name(client_p
, HIDE_IP
));
551 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
556 /* also check the unknowns list for new dlines */
557 DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
559 client_p
= ptr
->data
;
561 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)))
563 if(aconf
->status
& CONF_EXEMPTDLINE
)
566 notify_banned_client(client_p
, aconf
, D_LINED
);
572 /* check_klines_event()
576 * side effects - check_klines() is called, kline_queued unset
579 check_klines_event(void *unused
)
589 * side effects - all clients will be checked for klines
594 struct Client
*client_p
;
595 struct ConfItem
*aconf
;
597 dlink_node
*next_ptr
;
599 DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
601 client_p
= ptr
->data
;
603 if(IsMe(client_p
) || !IsPerson(client_p
))
606 if((aconf
= find_kline(client_p
)) != NULL
)
608 if(IsExemptKline(client_p
))
610 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
611 "KLINE over-ruled for %s, client is kline_exempt",
612 get_client_name(client_p
, HIDE_IP
));
616 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
617 "KLINE active for %s",
618 get_client_name(client_p
, HIDE_IP
));
620 notify_banned_client(client_p
, aconf
, K_LINED
);
630 * side effects - all clients will be checked for glines
635 struct Client
*client_p
;
636 struct ConfItem
*aconf
;
638 dlink_node
*next_ptr
;
640 DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
642 client_p
= ptr
->data
;
644 if(IsMe(client_p
) || !IsPerson(client_p
))
647 if((aconf
= find_gline(client_p
)) != NULL
)
649 if(IsExemptKline(client_p
))
651 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
652 "GLINE over-ruled for %s, client is kline_exempt",
653 get_client_name(client_p
, HIDE_IP
));
657 if(IsExemptGline(client_p
))
659 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
660 "GLINE over-ruled for %s, client is gline_exempt",
661 get_client_name(client_p
, HIDE_IP
));
665 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
666 "GLINE active for %s",
667 get_client_name(client_p
, HIDE_IP
));
669 notify_banned_client(client_p
, aconf
, K_LINED
);
679 * side effects - all clients will be checked for dlines
684 struct Client
*client_p
;
685 struct ConfItem
*aconf
;
687 dlink_node
*next_ptr
;
689 DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
691 client_p
= ptr
->data
;
696 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
698 if(aconf
->status
& CONF_EXEMPTDLINE
)
701 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
702 "DLINE active for %s",
703 get_client_name(client_p
, HIDE_IP
));
705 notify_banned_client(client_p
, aconf
, D_LINED
);
710 /* dlines need to be checked against unknowns too */
711 DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
713 client_p
= ptr
->data
;
715 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
717 if(aconf
->status
& CONF_EXEMPTDLINE
)
720 notify_banned_client(client_p
, aconf
, D_LINED
);
729 * side effects - all clients will be checked for xlines
734 struct Client
*client_p
;
735 struct ConfItem
*aconf
;
737 dlink_node
*next_ptr
;
739 DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
741 client_p
= ptr
->data
;
743 if(IsMe(client_p
) || !IsPerson(client_p
))
746 if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
748 if(IsExemptKline(client_p
))
750 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
751 "XLINE over-ruled for %s, client is kline_exempt",
752 get_client_name(client_p
, HIDE_IP
));
756 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
757 get_client_name(client_p
, HIDE_IP
));
759 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
766 * update_client_exit_stats
768 * input - pointer to client
773 update_client_exit_stats(struct Client
*client_p
)
775 if(IsServer(client_p
))
777 sendto_realops_snomask(SNO_EXTERNAL
, L_ALL
,
778 "Server %s split from %s",
779 client_p
->name
, client_p
->servptr
->name
);
780 if(HasSentEob(client_p
))
783 else if(IsClient(client_p
))
788 if(IsInvisible(client_p
))
792 if(splitchecking
&& !splitmode
)
793 check_splitmode(NULL
);
797 * release_client_state
799 * input - pointer to client to release
804 release_client_state(struct Client
*client_p
)
806 if(client_p
->user
!= NULL
)
808 free_user(client_p
->user
, client_p
); /* try this here */
812 if(client_p
->serv
->user
!= NULL
)
813 free_user(client_p
->serv
->user
, client_p
);
814 if(client_p
->serv
->fullcaps
)
815 MyFree(client_p
->serv
->fullcaps
);
816 MyFree(client_p
->serv
);
821 * remove_client_from_list
822 * inputs - point to client to remove
824 * side effects - taken the code from ExitOneClient() for this
825 * and placed it here. - avalon
828 remove_client_from_list(struct Client
*client_p
)
830 s_assert(NULL
!= client_p
);
835 /* A client made with make_client()
836 * is on the unknown_list until removed.
837 * If it =does= happen to exit before its removed from that list
838 * and its =not= on the global_client_list, it will core here.
839 * short circuit that case now -db
841 if(client_p
->node
.prev
== NULL
&& client_p
->node
.next
== NULL
)
844 dlinkDelete(&client_p
->node
, &global_client_list
);
846 update_client_exit_stats(client_p
);
851 * find_person - find person by (nick)name.
852 * inputs - pointer to name
853 * output - return client pointer
857 find_person(const char *name
)
859 struct Client
*c2ptr
;
861 c2ptr
= find_client(name
);
863 if(c2ptr
&& IsPerson(c2ptr
))
869 find_named_person(const char *name
)
871 struct Client
*c2ptr
;
873 c2ptr
= find_named_client(name
);
875 if(c2ptr
&& IsPerson(c2ptr
))
882 * find_chasing - find the client structure for a nick name (user)
883 * using history mechanism if necessary. If the client is not found,
884 * an error message (NO SUCH NICK) is generated. If the client was found
885 * through the history, chasing will be 1 and otherwise 0.
888 find_chasing(struct Client
*source_p
, const char *user
, int *chasing
)
892 if(MyClient(source_p
))
893 who
= find_named_person(user
);
895 who
= find_person(user
);
900 if(who
|| IsDigit(*user
))
903 if(!(who
= get_history(user
, (long) KILLCHASETIMELIMIT
)))
905 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
906 form_str(ERR_NOSUCHNICK
), user
);
915 * get_client_name - Return the name of the client
916 * for various tracking and
917 * admin purposes. The main purpose of this function is to
918 * return the "socket host" name of the client, if that
919 * differs from the advertised name (other than case).
920 * But, this can be used to any client structure.
923 * Watch out the allocation of "nbuf", if either source_p->name
924 * or source_p->sockhost gets changed into pointers instead of
925 * directly allocated within the structure...
928 * Function return either a pointer to the structure (source_p) or
929 * to internal buffer (nbuf). *NEVER* use the returned pointer
930 * to modify what it points!!!
934 get_client_name(struct Client
*client
, int showip
)
936 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
938 s_assert(NULL
!= client
);
942 if(MyConnect(client
))
944 if(!irccmp(client
->name
, client
->host
))
947 if(ConfigFileEntry
.hide_spoof_ips
&&
948 showip
== SHOW_IP
&& IsIPSpoof(client
))
950 #ifdef HIDE_SERVERS_IPS
951 if(IsAnyServer(client
))
955 /* And finally, let's get the host information, ip or name */
959 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
960 client
->name
, client
->username
,
964 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
965 client
->name
, client
->username
);
968 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
969 client
->name
, client
->username
, client
->host
);
974 /* As pointed out by Adel Mezibra
975 * Neph|l|m@EFnet. Was missing a return here.
981 get_server_name(struct Client
*target_p
, int showip
)
983 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
988 if(!MyConnect(target_p
) || !irccmp(target_p
->name
, target_p
->host
))
989 return target_p
->name
;
991 #ifdef HIDE_SERVERS_IPS
992 if(EmptyString(target_p
->name
))
994 ircsnprintf(nbuf
, sizeof(nbuf
), "[%s@255.255.255.255]",
999 return target_p
->name
;
1005 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
1006 target_p
->name
, target_p
->username
,
1007 target_p
->sockhost
);
1011 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
1012 target_p
->name
, target_p
->username
);
1015 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
1016 target_p
->name
, target_p
->username
,
1023 /* log_client_name()
1025 * This version is the same as get_client_name, but doesnt contain the
1026 * code that will hide IPs always. This should be used for logfiles.
1029 log_client_name(struct Client
*target_p
, int showip
)
1031 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
1033 if(target_p
== NULL
)
1036 if(MyConnect(target_p
))
1038 if(irccmp(target_p
->name
, target_p
->host
) == 0)
1039 return target_p
->name
;
1044 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
1045 target_p
->username
, target_p
->sockhost
);
1049 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
1050 target_p
->name
, target_p
->username
);
1053 ircsnprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
1054 target_p
->username
, target_p
->host
);
1060 return target_p
->name
;
1063 /* is_remote_connect - Returns whether a server was /connect'ed by a remote
1064 * oper (send notices netwide) */
1066 is_remote_connect(struct Client
*client_p
)
1068 struct Client
*oper
;
1070 if (client_p
->serv
== NULL
)
1072 oper
= find_named_person(client_p
->serv
->by
);
1073 return oper
!= NULL
&& IsOper(oper
) && !MyConnect(oper
);
1077 free_exited_clients(void *unused
)
1079 dlink_node
*ptr
, *next
;
1080 struct Client
*target_p
;
1082 DLINK_FOREACH_SAFE(ptr
, next
, dead_list
.head
)
1084 target_p
= ptr
->data
;
1086 #ifdef DEBUG_EXITED_CLIENTS
1088 struct abort_client
*abt
;
1092 DLINK_FOREACH(aptr
, abort_list
.head
)
1095 if(abt
->client
== target_p
)
1098 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1099 "On abort_list: %s stat: %u flags: %u/%u handler: %c",
1100 target_p
->name
, (unsigned int) target_p
->status
,
1101 target_p
->flags
, target_p
->flags2
, target_p
->handler
);
1102 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1103 "Please report this to the charybdis developers!");
1110 dlinkDestroy(ptr
, &dead_list
);
1116 if(ptr
->data
== NULL
)
1118 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1119 "Warning: null client on dead_list!");
1120 dlinkDestroy(ptr
, &dead_list
);
1123 release_client_state(target_p
);
1124 free_client(target_p
);
1125 dlinkDestroy(ptr
, &dead_list
);
1128 #ifdef DEBUG_EXITED_CLIENTS
1129 DLINK_FOREACH_SAFE(ptr
, next
, dead_remote_list
.head
)
1131 target_p
= ptr
->data
;
1133 if(ptr
->data
== NULL
)
1135 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1136 "Warning: null client on dead_list!");
1137 dlinkDestroy(ptr
, &dead_list
);
1140 release_client_state(target_p
);
1141 free_client(target_p
);
1142 dlinkDestroy(ptr
, &dead_remote_list
);
1149 ** Recursively send QUITs and SQUITs for source_p and all its dependent clients
1150 ** and servers to those servers that need them. A server needs the client
1151 ** QUITs if it can't figure them out from the SQUIT (ie pre-TS4) or if it
1152 ** isn't getting the SQUIT because of @#(*&@)# hostmasking. With TS4, once
1153 ** a link gets a SQUIT, it doesn't need any QUIT/SQUITs for clients depending
1154 ** on that one -orabidoo
1157 recurse_send_quits(struct Client
*client_p
, struct Client
*source_p
,
1158 struct Client
*to
, const char *comment1
,
1159 const char *comment
)
1161 struct Client
*target_p
;
1162 dlink_node
*ptr
, *ptr_next
;
1163 /* If this server can handle quit storm (QS) removal
1164 * of dependents, just send the SQUIT
1167 if(IsCapable(to
, CAP_QS
))
1169 sendto_one(to
, "SQUIT %s :%s",
1170 get_id(source_p
, to
), comment
);
1174 DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1176 target_p
= ptr
->data
;
1177 sendto_one(to
, ":%s QUIT :%s", target_p
->name
, comment1
);
1179 DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1181 target_p
= ptr
->data
;
1182 recurse_send_quits(client_p
, target_p
, to
, comment1
, comment
);
1184 sendto_one(to
, "SQUIT %s :%s", source_p
->name
, comment
);
1189 ** Remove all clients that depend on source_p; assumes all (S)QUITs have
1190 ** already been sent. we make sure to exit a server's dependent clients
1191 ** and servers before the server itself; exit_one_client takes care of
1192 ** actually removing things off llists. tweaked from +CSr31 -orabidoo
1195 * added sanity test code.... source_p->serv might be NULL...
1198 recurse_remove_clients(struct Client
*source_p
, const char *comment
)
1200 struct Client
*target_p
;
1201 dlink_node
*ptr
, *ptr_next
;
1206 if(source_p
->serv
== NULL
) /* oooops. uh this is actually a major bug */
1209 /* this is very ugly, but it saves cpu :P */
1210 if(ConfigFileEntry
.nick_delay
> 0)
1212 DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1214 target_p
= ptr
->data
;
1215 target_p
->flags
|= FLAGS_KILLED
;
1216 add_nd_entry(target_p
->name
);
1218 if(!IsDead(target_p
) && !IsClosing(target_p
))
1219 exit_remote_client(NULL
, target_p
, &me
, comment
);
1224 DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1226 target_p
= ptr
->data
;
1227 target_p
->flags
|= FLAGS_KILLED
;
1229 if(!IsDead(target_p
) && !IsClosing(target_p
))
1230 exit_remote_client(NULL
, target_p
, &me
, comment
);
1234 DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1236 target_p
= ptr
->data
;
1237 recurse_remove_clients(target_p
, comment
);
1238 qs_server(NULL
, target_p
, &me
, comment
);
1243 ** Remove *everything* that depends on source_p, from all lists, and sending
1244 ** all necessary QUITs and SQUITs. source_p itself is still on the lists,
1245 ** and its SQUITs have been sent except for the upstream one -orabidoo
1248 remove_dependents(struct Client
*client_p
,
1249 struct Client
*source_p
,
1250 struct Client
*from
, const char *comment
, const char *comment1
)
1253 dlink_node
*ptr
, *next
;
1255 DLINK_FOREACH_SAFE(ptr
, next
, serv_list
.head
)
1259 if(IsMe(to
) || to
== source_p
->from
||
1260 (to
== client_p
&& IsCapable(to
, CAP_QS
)))
1263 recurse_send_quits(client_p
, source_p
, to
, comment1
, comment
);
1266 recurse_remove_clients(source_p
, comment1
);
1270 exit_aborted_clients(void *unused
)
1272 struct abort_client
*abt
;
1273 dlink_node
*ptr
, *next
;
1274 DLINK_FOREACH_SAFE(ptr
, next
, abort_list
.head
)
1278 #ifdef DEBUG_EXITED_CLIENTS
1280 if(dlinkFind(abt
->client
, &dead_list
))
1283 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1284 "On dead_list: %s stat: %u flags: %u/%u handler: %c",
1285 abt
->client
->name
, (unsigned int) abt
->client
->status
,
1286 abt
->client
->flags
, abt
->client
->flags2
, abt
->client
->handler
);
1287 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1288 "Please report this to the charybdis developers!");
1294 s_assert(*((unsigned long*)abt
->client
) != 0xdeadbeef); /* This is lame but its a debug thing */
1295 dlinkDelete(ptr
, &abort_list
);
1297 if(IsAnyServer(abt
->client
))
1298 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1299 "Closing link to %s: %s",
1300 get_server_name(abt
->client
, HIDE_IP
), abt
->notice
);
1302 /* its no longer on abort list - we *must* remove
1303 * FLAGS_CLOSING otherwise exit_client() will not run --fl
1305 abt
->client
->flags
&= ~FLAGS_CLOSING
;
1306 exit_client(abt
->client
, abt
->client
, &me
, abt
->notice
);
1313 * dead_link - Adds client to a list of clients that need an exit_client()
1317 dead_link(struct Client
*client_p
)
1319 struct abort_client
*abt
;
1321 s_assert(!IsMe(client_p
));
1322 if(IsDead(client_p
) || IsClosing(client_p
) || IsMe(client_p
))
1325 abt
= (struct abort_client
*) MyMalloc(sizeof(struct abort_client
));
1327 if(client_p
->flags
& FLAGS_SENDQEX
)
1328 strlcpy(abt
->notice
, "Max SendQ exceeded", sizeof(abt
->notice
));
1330 ircsnprintf(abt
->notice
, sizeof(abt
->notice
), "Write error: %s", strerror(errno
));
1332 abt
->client
= client_p
;
1333 SetIOError(client_p
);
1335 SetClosing(client_p
);
1336 dlinkAdd(abt
, &abt
->node
, &abort_list
);
1340 /* This does the remove of the user from channels..local or remote */
1342 exit_generic_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1343 const char *comment
)
1345 dlink_node
*ptr
, *next_ptr
;
1347 if(IsOper(source_p
))
1348 dlinkFindDestroy(source_p
, &oper_list
);
1350 sendto_common_channels_local(source_p
, ":%s!%s@%s QUIT :%s",
1352 source_p
->username
, source_p
->host
, comment
);
1354 remove_user_from_channels(source_p
);
1356 /* Should not be in any channels now */
1357 s_assert(source_p
->user
->channel
.head
== NULL
);
1359 /* Clean up invitefield */
1360 DLINK_FOREACH_SAFE(ptr
, next_ptr
, source_p
->user
->invited
.head
)
1362 del_invite(ptr
->data
, source_p
);
1365 /* Clean up allow lists */
1366 del_all_accepts(source_p
);
1368 add_history(source_p
, 0);
1369 off_history(source_p
);
1371 monitor_signoff(source_p
);
1373 if(has_id(source_p
))
1374 del_from_id_hash(source_p
->id
, source_p
);
1376 del_from_hostname_hash(source_p
->orighost
, source_p
);
1377 del_from_client_hash(source_p
->name
, source_p
);
1378 remove_client_from_list(source_p
);
1382 * Assumes IsPerson(source_p) && !MyConnect(source_p)
1386 exit_remote_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1387 const char *comment
)
1389 exit_generic_client(client_p
, source_p
, from
, comment
);
1391 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1393 dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->users
);
1396 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1398 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1399 ":%s QUIT :%s", use_id(source_p
), comment
);
1400 sendto_server(client_p
, NULL
, NOCAPS
, CAP_TS6
,
1401 ":%s QUIT :%s", source_p
->name
, comment
);
1405 #ifdef DEBUG_EXITED_CLIENTS
1406 dlinkAddAlloc(source_p
, &dead_remote_list
);
1408 dlinkAddAlloc(source_p
, &dead_list
);
1410 return(CLIENT_EXITED
);
1414 * This assumes IsUnknown(source_p) == TRUE and MyConnect(source_p) == TRUE
1418 exit_unknown_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1419 const char *comment
)
1421 delete_auth_queries(source_p
);
1422 client_flush_input(source_p
);
1423 del_unknown_ip(source_p
);
1424 dlinkDelete(&source_p
->localClient
->tnode
, &unknown_list
);
1426 if(!IsIOError(source_p
))
1427 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)",
1428 source_p
->user
!= NULL
? source_p
->host
: "127.0.0.1",
1431 close_connection(source_p
);
1433 if(has_id(source_p
))
1434 del_from_id_hash(source_p
->id
, source_p
);
1436 del_from_hostname_hash(source_p
->host
, source_p
);
1437 del_from_client_hash(source_p
->name
, source_p
);
1438 remove_client_from_list(source_p
);
1440 dlinkAddAlloc(source_p
, &dead_list
);
1442 /* Note that we don't need to add unknowns to the dead_list */
1443 return(CLIENT_EXITED
);
1447 exit_remote_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1448 const char *comment
)
1450 static char comment1
[(HOSTLEN
*2)+2];
1451 static char newcomment
[BUFSIZE
];
1452 struct Client
*target_p
;
1454 if(ConfigServerHide
.flatten_links
)
1455 strcpy(comment1
, "*.net *.split");
1458 if((source_p
->serv
) && (source_p
->serv
->up
))
1459 strcpy(comment1
, source_p
->serv
->up
);
1461 strcpy(comment1
, "<Unknown>");
1463 strcat(comment1
, " ");
1464 strcat(comment1
, source_p
->name
);
1467 ircsnprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1468 from
->name
, comment
);
1470 if(source_p
->serv
!= NULL
)
1471 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1473 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1474 dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1478 dlinkFindDestroy(source_p
, &global_serv_list
);
1479 target_p
= source_p
->from
;
1481 if(target_p
!= NULL
&& IsServer(target_p
) && target_p
!= client_p
&&
1482 !IsMe(target_p
) && (source_p
->flags
& FLAGS_KILLED
) == 0)
1484 sendto_one(target_p
, ":%s SQUIT %s :%s",
1485 get_id(from
, target_p
), get_id(source_p
, target_p
),
1489 if(has_id(source_p
))
1490 del_from_id_hash(source_p
->id
, source_p
);
1492 del_from_client_hash(source_p
->name
, source_p
);
1493 remove_client_from_list(source_p
);
1496 #ifdef DEBUG_EXITED_CLIENTS
1497 dlinkAddAlloc(source_p
, &dead_remote_list
);
1499 dlinkAddAlloc(source_p
, &dead_list
);
1505 qs_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1506 const char *comment
)
1508 struct Client
*target_p
;
1510 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1511 dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1515 dlinkFindDestroy(source_p
, &global_serv_list
);
1516 target_p
= source_p
->from
;
1518 if(has_id(source_p
))
1519 del_from_id_hash(source_p
->id
, source_p
);
1521 del_from_client_hash(source_p
->name
, source_p
);
1522 remove_client_from_list(source_p
);
1525 dlinkAddAlloc(source_p
, &dead_list
);
1530 exit_local_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1531 const char *comment
)
1533 static char comment1
[(HOSTLEN
*2)+2];
1534 static char newcomment
[BUFSIZE
];
1535 unsigned int sendk
, recvk
;
1537 dlinkDelete(&source_p
->localClient
->tnode
, &serv_list
);
1538 dlinkFindDestroy(source_p
, &global_serv_list
);
1540 unset_chcap_usage_counts(source_p
);
1541 sendk
= source_p
->localClient
->sendK
;
1542 recvk
= source_p
->localClient
->receiveK
;
1544 /* Always show source here, so the server notices show
1545 * which side initiated the split -- jilles
1547 ircsnprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1548 from
== source_p
? me
.name
: from
->name
, comment
);
1549 if (!IsIOError(source_p
))
1550 sendto_one(source_p
, "SQUIT %s :%s", use_id(source_p
),
1552 if(client_p
!= NULL
&& source_p
!= client_p
&& !IsIOError(source_p
))
1554 sendto_one(source_p
, "ERROR :Closing Link: 127.0.0.1 %s (%s)",
1555 source_p
->name
, comment
);
1558 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1559 dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1564 close_connection(source_p
);
1566 if(ConfigServerHide
.flatten_links
)
1567 strcpy(comment1
, "*.net *.split");
1570 if((source_p
->serv
) && (source_p
->serv
->up
))
1571 strcpy(comment1
, source_p
->serv
->up
);
1573 strcpy(comment1
, "<Unknown>");
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
);
1596 dlinkAddAlloc(source_p
, &dead_list
);
1602 * This assumes IsPerson(source_p) == TRUE && MyConnect(source_p) == TRUE
1606 exit_local_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1607 const char *comment
)
1609 unsigned long on_for
;
1611 exit_generic_client(client_p
, source_p
, from
, comment
);
1612 clear_monitor(source_p
);
1614 s_assert(IsPerson(source_p
));
1615 client_flush_input(source_p
);
1616 dlinkDelete(&source_p
->localClient
->tnode
, &lclient_list
);
1617 dlinkDelete(&source_p
->lnode
, &me
.serv
->users
);
1619 if(IsOper(source_p
))
1620 dlinkFindDestroy(source_p
, &local_oper_list
);
1622 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
1623 "Client exiting: %s (%s@%s) [%s] [%s]",
1625 source_p
->username
, source_p
->host
, comment
,
1626 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255");
1628 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
1629 "CLIEXIT %s %s %s %s 0 %s",
1630 source_p
->name
, source_p
->username
, source_p
->host
,
1631 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255",
1634 on_for
= CurrentTime
- source_p
->localClient
->firsttime
;
1636 ilog(L_USER
, "%s (%3lu:%02lu:%02lu): %s!%s@%s %d/%d",
1637 myctime(CurrentTime
), on_for
/ 3600,
1638 (on_for
% 3600) / 60, on_for
% 60,
1639 source_p
->name
, source_p
->username
, source_p
->host
,
1640 source_p
->localClient
->sendK
, source_p
->localClient
->receiveK
);
1642 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)", source_p
->host
, comment
);
1643 close_connection(source_p
);
1645 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1647 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1648 ":%s QUIT :%s", use_id(source_p
), comment
);
1649 sendto_server(client_p
, NULL
, NOCAPS
, CAP_TS6
,
1650 ":%s QUIT :%s", source_p
->name
, comment
);
1654 dlinkAddAlloc(source_p
, &dead_list
);
1655 return(CLIENT_EXITED
);
1660 ** exit_client - This is old "m_bye". Name changed, because this is not a
1661 ** protocol function, but a general server utility function.
1663 ** This function exits a client of *any* type (user, server, etc)
1664 ** from this server. Also, this generates all necessary prototol
1665 ** messages that this exit may cause.
1667 ** 1) If the client is a local client, then this implicitly
1668 ** exits all other clients depending on this connection (e.g.
1669 ** remote clients having 'from'-field that points to this.
1671 ** 2) If the client is a remote client, then only this is exited.
1673 ** For convenience, this function returns a suitable value for
1674 ** m_function return value:
1676 ** CLIENT_EXITED if (client_p == source_p)
1677 ** 0 if (client_p != source_p)
1680 exit_client(struct Client
*client_p
, /* The local client originating the
1681 * exit or NULL, if this exit is
1682 * generated by this server for
1684 * This will not get any of the
1685 * generated messages. */
1686 struct Client
*source_p
, /* Client exiting */
1687 struct Client
*from
, /* Client firing off this Exit,
1689 const char *comment
/* Reason for the exit */
1692 hook_data_client_exit hdata
;
1693 if(IsClosing(source_p
))
1696 /* note, this HAS to be here, when we exit a client we attempt to
1697 * send them data, if this generates a write error we must *not* add
1698 * them to the abort list --fl
1700 SetClosing(source_p
);
1702 hdata
.local_link
= client_p
;
1703 hdata
.target
= source_p
;
1705 hdata
.comment
= comment
;
1706 call_hook(h_client_exit
, &hdata
);
1708 if(MyConnect(source_p
))
1710 /* Local clients of various types */
1711 if(IsPerson(source_p
))
1712 return exit_local_client(client_p
, source_p
, from
, comment
);
1713 else if(IsServer(source_p
))
1714 return exit_local_server(client_p
, source_p
, from
, comment
);
1715 /* IsUnknown || IsConnecting || IsHandShake */
1716 else if(!IsReject(source_p
))
1717 return exit_unknown_client(client_p
, source_p
, from
, comment
);
1722 if(IsPerson(source_p
))
1723 return exit_remote_client(client_p
, source_p
, from
, comment
);
1724 else if(IsServer(source_p
))
1725 return exit_remote_server(client_p
, source_p
, from
, comment
);
1732 * Count up local client memory
1735 /* XXX one common Client list now */
1737 count_local_client_memory(size_t * count
, size_t * local_client_memory_used
)
1740 BlockHeapUsage(lclient_heap
, count
, NULL
, &lusage
);
1741 *local_client_memory_used
= lusage
+ (*count
* (sizeof(MemBlock
) + sizeof(struct Client
)));
1745 * Count up remote client memory
1748 count_remote_client_memory(size_t * count
, size_t * remote_client_memory_used
)
1750 size_t lcount
, rcount
;
1751 BlockHeapUsage(lclient_heap
, &lcount
, NULL
, NULL
);
1752 BlockHeapUsage(client_heap
, &rcount
, NULL
, NULL
);
1753 *count
= rcount
- lcount
;
1754 *remote_client_memory_used
= *count
* (sizeof(MemBlock
) + sizeof(struct Client
));
1759 * accept processing, this adds a form of "caller ID" to ircd
1761 * If a client puts themselves into "caller ID only" mode,
1762 * only clients that match a client pointer they have put on
1763 * the accept list will be allowed to message them.
1765 * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1767 * [target.allow_list] -> [ source1 ] -> [source2 ]
1769 * i.e. a target will have a link list of source pointers it will allow
1770 * each source client then has a back pointer pointing back
1771 * to the client that has it on its accept list.
1772 * This allows for exit_one_client to remove these now bogus entries
1773 * from any client having an accept on them.
1778 * inputs - pointer to exiting client
1780 * side effects - Walk through given clients allow_list and on_allow_list
1781 * remove all references to this client
1784 del_all_accepts(struct Client
*client_p
)
1787 dlink_node
*next_ptr
;
1788 struct Client
*target_p
;
1790 if(MyClient(client_p
) && client_p
->localClient
->allow_list
.head
)
1792 /* clear this clients accept list, and remove them from
1793 * everyones on_accept_list
1795 DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->localClient
->allow_list
.head
)
1797 target_p
= ptr
->data
;
1798 dlinkFindDestroy(client_p
, &target_p
->on_allow_list
);
1799 dlinkDestroy(ptr
, &client_p
->localClient
->allow_list
);
1803 /* remove this client from everyones accept list */
1804 DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
1806 target_p
= ptr
->data
;
1807 dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
1808 dlinkDestroy(ptr
, &client_p
->on_allow_list
);
1813 * show_ip() - asks if the true IP shoudl be shown when source is
1814 * askin for info about target
1816 * Inputs - source_p who is asking
1817 * - target_p who do we want the info on
1818 * Output - returns 1 if clear IP can be showed, otherwise 0
1819 * Side Effects - none
1823 show_ip(struct Client
*source_p
, struct Client
*target_p
)
1825 if(IsAnyServer(target_p
))
1827 #ifndef HIDE_SERVERS_IPS
1828 if(source_p
== NULL
|| IsOper(source_p
))
1833 else if(IsIPSpoof(target_p
))
1835 /* source == NULL indicates message is being sent
1838 if(!ConfigFileEntry
.hide_spoof_ips
&&
1839 (source_p
== NULL
|| MyOper(source_p
)))
1843 else if(IsDynSpoof(target_p
) && (source_p
!= NULL
&& !IsOper(source_p
)))
1850 show_ip_conf(struct ConfItem
*aconf
, struct Client
*source_p
)
1852 if(IsConfDoSpoofIp(aconf
))
1854 if(!ConfigFileEntry
.hide_spoof_ips
&& MyOper(source_p
))
1869 * side effects - Creates a block heap for struct Users
1872 static BlockHeap
*user_heap
;
1876 user_heap
= BlockHeapCreate(sizeof(struct User
), USER_HEAP_SIZE
);
1884 * inputs - pointer to client struct
1885 * output - pointer to struct User
1886 * side effects - add's an User information block to a client
1887 * if it was not previously allocated.
1890 make_user(struct Client
*client_p
)
1894 user
= client_p
->user
;
1897 user
= (struct User
*) BlockHeapAlloc(user_heap
);
1899 client_p
->user
= user
;
1907 * inputs - pointer to client struct
1908 * output - pointer to server_t
1909 * side effects - add's an Server information block to a client
1910 * if it was not previously allocated.
1913 make_server(struct Client
*client_p
)
1915 server_t
*serv
= client_p
->serv
;
1919 serv
= (server_t
*) MyMalloc(sizeof(server_t
));
1920 client_p
->serv
= serv
;
1922 return client_p
->serv
;
1928 * inputs - pointer to user struct
1929 * - pointer to client struct
1931 * side effects - Decrease user reference count by one and release block,
1932 * if count reaches 0
1935 free_user(struct User
*user
, struct Client
*client_p
)
1937 if(--user
->refcnt
<= 0)
1940 MyFree((char *) user
->away
);
1944 if(user
->refcnt
< 0 || user
->invited
.head
|| user
->channel
.head
)
1946 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1947 "* %#lx user (%s!%s@%s) %#lx %#lx %#lx %lu %d *",
1948 (unsigned long) client_p
,
1949 client_p
? client_p
->
1953 (unsigned long) user
,
1954 (unsigned long) user
->invited
.head
,
1955 (unsigned long) user
->channel
.head
,
1956 dlink_list_length(&user
->channel
),
1958 s_assert(!user
->refcnt
);
1959 s_assert(!user
->invited
.head
);
1960 s_assert(!user
->channel
.head
);
1963 BlockHeapFree(user_heap
, user
);
1972 for(i
= 0; i
< 3; i
++)
1973 current_uid
[i
] = me
.id
[i
];
1975 for(i
= 3; i
< 9; i
++)
1976 current_uid
[i
] = 'A';
1978 current_uid
[9] = '\0';
1987 for(i
= 8; i
> 3; i
--)
1989 if(current_uid
[i
] == 'Z')
1991 current_uid
[i
] = '0';
1994 else if(current_uid
[i
] != '9')
2000 current_uid
[i
] = 'A';
2003 /* if this next if() triggers, we're fucked. */
2004 if(current_uid
[3] == 'Z')
2006 current_uid
[i
] = 'A';
2017 * Close the physical connection. This function must make
2018 * MyConnect(client_p) == FALSE, and set client_p->from == NULL.
2021 close_connection(struct Client
*client_p
)
2023 s_assert(client_p
!= NULL
);
2024 if(client_p
== NULL
)
2027 s_assert(MyConnect(client_p
));
2028 if(!MyConnect(client_p
))
2031 if(IsServer(client_p
))
2033 struct server_conf
*server_p
;
2035 ServerStats
->is_sv
++;
2036 ServerStats
->is_sbs
+= client_p
->localClient
->sendB
;
2037 ServerStats
->is_sbr
+= client_p
->localClient
->receiveB
;
2038 ServerStats
->is_sks
+= client_p
->localClient
->sendK
;
2039 ServerStats
->is_skr
+= client_p
->localClient
->receiveK
;
2040 ServerStats
->is_sti
+= CurrentTime
- client_p
->localClient
->firsttime
;
2041 if(ServerStats
->is_sbs
> 2047)
2043 ServerStats
->is_sks
+= (ServerStats
->is_sbs
>> 10);
2044 ServerStats
->is_sbs
&= 0x3ff;
2046 if(ServerStats
->is_sbr
> 2047)
2048 ServerStats
->is_skr
+= (ServerStats
->is_sbr
>> 10);
2049 ServerStats
->is_sbr
&= 0x3ff;
2053 * If the connection has been up for a long amount of time, schedule
2054 * a 'quick' reconnect, else reset the next-connect cycle.
2056 if((server_p
= find_server_conf(client_p
->name
)) != NULL
)
2059 * Reschedule a faster reconnect, if this was a automatically
2060 * connected configuration entry. (Note that if we have had
2061 * a rehash in between, the status has been changed to
2062 * CONF_ILLEGAL). But only do this if it was a "good" link.
2064 server_p
->hold
= time(NULL
);
2066 (server_p
->hold
- client_p
->localClient
->lasttime
>
2067 HANGONGOODLINK
) ? HANGONRETRYDELAY
: ConFreq(server_p
->class);
2071 else if(IsClient(client_p
))
2073 ServerStats
->is_cl
++;
2074 ServerStats
->is_cbs
+= client_p
->localClient
->sendB
;
2075 ServerStats
->is_cbr
+= client_p
->localClient
->receiveB
;
2076 ServerStats
->is_cks
+= client_p
->localClient
->sendK
;
2077 ServerStats
->is_ckr
+= client_p
->localClient
->receiveK
;
2078 ServerStats
->is_cti
+= CurrentTime
- client_p
->localClient
->firsttime
;
2079 if(ServerStats
->is_cbs
> 2047)
2081 ServerStats
->is_cks
+= (ServerStats
->is_cbs
>> 10);
2082 ServerStats
->is_cbs
&= 0x3ff;
2084 if(ServerStats
->is_cbr
> 2047)
2086 ServerStats
->is_ckr
+= (ServerStats
->is_cbr
>> 10);
2087 ServerStats
->is_cbr
&= 0x3ff;
2091 ServerStats
->is_ni
++;
2093 if(-1 < client_p
->localClient
->fd
)
2095 /* attempt to flush any pending dbufs. Evil, but .. -- adrian */
2096 if(!IsIOError(client_p
))
2097 send_queued_write(client_p
->localClient
->fd
, client_p
);
2099 comm_close(client_p
->localClient
->fd
);
2100 client_p
->localClient
->fd
= -1;
2103 if(-1 < client_p
->localClient
->ctrlfd
)
2105 comm_close(client_p
->localClient
->ctrlfd
);
2106 client_p
->localClient
->ctrlfd
= -1;
2109 linebuf_donebuf(&client_p
->localClient
->buf_sendq
);
2110 linebuf_donebuf(&client_p
->localClient
->buf_recvq
);
2111 detach_conf(client_p
);
2113 /* XXX shouldnt really be done here. */
2114 detach_server_conf(client_p
);
2116 client_p
->from
= NULL
; /* ...this should catch them! >:) --msa */
2117 ClearMyConnect(client_p
);
2118 SetIOError(client_p
);
2124 error_exit_client(struct Client
*client_p
, int error
)
2127 * ...hmm, with non-blocking sockets we might get
2128 * here from quite valid reasons, although.. why
2129 * would select report "data available" when there
2130 * wasn't... so, this must be an error anyway... --msa
2131 * actually, EOF occurs when read() returns 0 and
2132 * in due course, select() returns that fd as ready
2133 * for reading even though it ends up being an EOF. -avalon
2136 int current_error
= comm_get_sockerr(client_p
->localClient
->fd
);
2138 SetIOError(client_p
);
2140 if(IsServer(client_p
) || IsHandshake(client_p
))
2142 int connected
= CurrentTime
- client_p
->localClient
->firsttime
;
2146 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2147 "Server %s closed the connection",
2148 get_server_name(client_p
, SHOW_IP
));
2150 ilog(L_SERVER
, "Server %s closed the connection",
2151 log_client_name(client_p
, SHOW_IP
));
2155 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2156 "Lost connection to %s: %s",
2157 client_p
->name
, strerror(current_error
));
2158 ilog(L_SERVER
, "Lost connection to %s: %s",
2159 log_client_name(client_p
, SHOW_IP
), strerror(current_error
));
2162 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
2163 "%s had been connected for %d day%s, %2d:%02d:%02d",
2164 client_p
->name
, connected
/ 86400,
2165 (connected
/ 86400 == 1) ? "" : "s",
2166 (connected
% 86400) / 3600,
2167 (connected
% 3600) / 60, connected
% 60);
2171 strlcpy(errmsg
, "Remote host closed the connection", sizeof(errmsg
));
2173 ircsnprintf(errmsg
, sizeof(errmsg
), "Read error: %s", strerror(current_error
));
2175 exit_client(client_p
, client_p
, &me
, errmsg
);