2 * charybdis: an advanced ircd.
3 * client.c: Controls clients.
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2005 ircd-ratbox development team
8 * Copyright (C) 2007 William Pitcock
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
25 * $Id: client.c 3514 2007-06-06 16:25:21Z nenolod $
40 #include "s_newconf.h"
53 #include "blacklist.h"
56 #include "irc_dictionary.h"
59 #define DEBUG_EXITED_CLIENTS
61 static void check_pings_list(rb_dlink_list
* list
);
62 static void check_unknowns_list(rb_dlink_list
* list
);
63 static void free_exited_clients(void *unused
);
64 static void exit_aborted_clients(void *unused
);
66 static int exit_remote_client(struct Client
*, struct Client
*, struct Client
*,const char *);
67 static int exit_remote_server(struct Client
*, struct Client
*, struct Client
*,const char *);
68 static int exit_local_client(struct Client
*, struct Client
*, struct Client
*,const char *);
69 static int exit_unknown_client(struct Client
*, struct Client
*, struct Client
*,const char *);
70 static int exit_local_server(struct Client
*, struct Client
*, struct Client
*,const char *);
71 static int qs_server(struct Client
*, struct Client
*, struct Client
*, const char *comment
);
73 static EVH check_pings
;
75 extern rb_bh
*client_heap
;
76 extern rb_bh
*lclient_heap
;
77 extern rb_bh
*pclient_heap
;
78 static rb_bh
*away_heap
= NULL
;
80 extern char current_uid
[IDLEN
];
82 struct Dictionary
*nd_dict
= NULL
;
90 rb_dlink_list dead_list
;
91 #ifdef DEBUG_EXITED_CLIENTS
92 static rb_dlink_list dead_remote_list
;
98 struct Client
*client
;
99 char notice
[REASONLEN
];
102 static rb_dlink_list abort_list
;
110 * side effects - initialize client free memory
116 * start off the check ping event .. -- adrian
117 * Every 30 seconds is plenty -- db
119 client_heap
= rb_bh_create(sizeof(struct Client
), CLIENT_HEAP_SIZE
, "client_heap");
120 lclient_heap
= rb_bh_create(sizeof(struct LocalUser
), LCLIENT_HEAP_SIZE
, "lclient_heap");
121 pclient_heap
= rb_bh_create(sizeof(struct PreClient
), PCLIENT_HEAP_SIZE
, "pclient_heap");
122 away_heap
= rb_bh_create(AWAYLEN
, AWAY_HEAP_SIZE
, "away_heap");
124 rb_event_addish("check_pings", check_pings
, NULL
, 30);
125 rb_event_addish("free_exited_clients", &free_exited_clients
, NULL
, 4);
126 rb_event_addish("exit_aborted_clients", exit_aborted_clients
, NULL
, 1);
127 rb_event_add("flood_recalc", flood_recalc
, NULL
, 1);
129 nd_dict
= irc_dictionary_create(irccmp
);
134 * make_client - create a new Client struct and set it to initial state.
136 * from == NULL, create local client (a client connected
139 * from, create remote client (behind a socket
140 * associated with the client defined by
141 * 'from'). ('from' is a local client!!).
144 make_client(struct Client
*from
)
146 struct Client
*client_p
= NULL
;
147 struct LocalUser
*localClient
;
149 client_p
= rb_bh_alloc(client_heap
);
153 client_p
->from
= client_p
; /* 'from' of local client is self! */
155 localClient
= (struct LocalUser
*) rb_bh_alloc(lclient_heap
);
156 SetMyConnect(client_p
);
157 client_p
->localClient
= localClient
;
159 client_p
->localClient
->lasttime
= client_p
->localClient
->firsttime
= rb_current_time();
161 client_p
->localClient
->F
= NULL
;
163 client_p
->preClient
= (struct PreClient
*) rb_bh_alloc(pclient_heap
);
165 /* as good a place as any... */
166 rb_dlinkAdd(client_p
, &client_p
->localClient
->tnode
, &unknown_list
);
169 { /* from is not NULL */
170 client_p
->localClient
= NULL
;
171 client_p
->preClient
= NULL
;
172 client_p
->from
= from
; /* 'from' of local client is self! */
175 SetUnknown(client_p
);
176 strcpy(client_p
->username
, "unknown");
182 free_pre_client(struct Client
*client_p
)
184 struct Blacklist
*blptr
;
186 s_assert(NULL
!= client_p
);
188 if(client_p
->preClient
== NULL
)
191 blptr
= client_p
->preClient
->dnsbl_listed
;
193 unref_blacklist(blptr
);
194 abort_blacklist_queries(client_p
);
195 rb_bh_free(pclient_heap
, client_p
->preClient
);
196 client_p
->preClient
= NULL
;
200 free_local_client(struct Client
*client_p
)
202 s_assert(NULL
!= client_p
);
203 s_assert(&me
!= client_p
);
205 if(client_p
->localClient
== NULL
)
209 * clean up extra sockets from P-lines which have been discarded.
211 if(client_p
->localClient
->listener
)
213 s_assert(0 < client_p
->localClient
->listener
->ref_count
);
214 if(0 == --client_p
->localClient
->listener
->ref_count
215 && !client_p
->localClient
->listener
->active
)
216 free_listener(client_p
->localClient
->listener
);
217 client_p
->localClient
->listener
= 0;
220 if(client_p
->localClient
->F
!= NULL
)
222 del_from_cli_fd_hash(client_p
);
223 rb_close(client_p
->localClient
->F
);
226 if(client_p
->localClient
->passwd
)
228 memset(client_p
->localClient
->passwd
, 0,
229 strlen(client_p
->localClient
->passwd
));
230 rb_free(client_p
->localClient
->passwd
);
233 rb_free(client_p
->localClient
->challenge
);
234 rb_free(client_p
->localClient
->fullcaps
);
235 rb_free(client_p
->localClient
->opername
);
236 rb_free(client_p
->localClient
->mangledhost
);
238 ssld_decrement_clicount(client_p
->localClient
->ssl_ctl
);
240 rb_bh_free(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 rb_bh_free(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(rb_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 rb_dlink_node
*ptr
, *next_ptr
;
303 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
305 client_p
= ptr
->data
;
307 if(!MyConnect(client_p
) || IsDead(client_p
))
310 ping
= get_client_ping(client_p
);
312 if(ping
< (rb_current_time() - client_p
->localClient
->lasttime
))
315 * If the client/server hasnt talked to us in 2*ping seconds
316 * and it has a ping time, then close its connection.
318 if(((rb_current_time() - client_p
->localClient
->lasttime
) >= (2 * ping
)
319 && (client_p
->flags
& FLAGS_PINGSENT
)))
321 if(IsServer(client_p
))
323 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
324 "No response from %s, closing link",
325 get_server_name(client_p
, HIDE_IP
));
327 "No response from %s, closing link",
328 log_client_name(client_p
, HIDE_IP
));
330 (void) rb_snprintf(scratch
, sizeof(scratch
),
331 "Ping timeout: %d seconds",
332 (int) (rb_current_time() - client_p
->localClient
->lasttime
));
334 exit_client(client_p
, client_p
, &me
, scratch
);
337 else if((client_p
->flags
& FLAGS_PINGSENT
) == 0)
340 * if we havent PINGed the connection and we havent
341 * heard from it in a while, PING it to make sure
344 client_p
->flags
|= FLAGS_PINGSENT
;
345 /* not nice but does the job */
346 client_p
->localClient
->lasttime
= rb_current_time() - ping
;
347 sendto_one(client_p
, "PING :%s", me
.name
);
356 * check_unknowns_list
358 * inputs - pointer to list of unknown clients
360 * side effects - unknown clients get marked for termination after n seconds
363 check_unknowns_list(rb_dlink_list
* list
)
365 rb_dlink_node
*ptr
, *next_ptr
;
366 struct Client
*client_p
;
369 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
371 client_p
= ptr
->data
;
373 if(IsDead(client_p
) || IsClosing(client_p
))
376 /* still has DNSbls to validate against */
377 if(client_p
->preClient
!= NULL
&&
378 rb_dlink_list_length(&client_p
->preClient
->dnsbl_queries
) > 0)
382 * Check UNKNOWN connections - if they have been in this state
383 * for > 30s, close them.
386 timeout
= IsAnyServer(client_p
) ? ConfigFileEntry
.connect_timeout
: 30;
387 if((rb_current_time() - client_p
->localClient
->firsttime
) > timeout
)
389 if(IsAnyServer(client_p
))
391 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
392 "No response from %s, closing link",
393 get_server_name(client_p
, HIDE_IP
));
395 "No response from %s, closing link",
396 log_client_name(client_p
, HIDE_IP
));
398 exit_client(client_p
, client_p
, &me
, "Connection timed out");
404 notify_banned_client(struct Client
*client_p
, struct ConfItem
*aconf
, int ban
)
406 static const char conn_closed
[] = "Connection closed";
407 static const char d_lined
[] = "D-lined";
408 static const char k_lined
[] = "K-lined";
409 const char *reason
= NULL
;
410 const char *exit_reason
= conn_closed
;
412 if(ConfigFileEntry
.kline_with_reason
&& !EmptyString(aconf
->passwd
))
414 reason
= aconf
->passwd
;
415 exit_reason
= aconf
->passwd
;
419 switch (aconf
->status
)
430 if(ban
== D_LINED
&& !IsPerson(client_p
))
431 sendto_one(client_p
, "NOTICE DLINE :*** You have been D-lined");
433 sendto_one(client_p
, form_str(ERR_YOUREBANNEDCREEP
),
434 me
.name
, client_p
->name
, reason
);
436 exit_client(client_p
, client_p
, &me
,
437 EmptyString(ConfigFileEntry
.kline_reason
) ? exit_reason
:
438 ConfigFileEntry
.kline_reason
);
445 * side effects - Check all connections for a pending k/dline against the
446 * client, exit the client if found.
449 check_banned_lines(void)
451 struct Client
*client_p
; /* current local client_p being examined */
452 struct ConfItem
*aconf
= NULL
;
453 rb_dlink_node
*ptr
, *next_ptr
;
455 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
457 client_p
= ptr
->data
;
462 /* if there is a returned struct ConfItem then kill it */
463 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
, client_p
->localClient
->ip
.ss_family
)))
465 if(aconf
->status
& CONF_EXEMPTDLINE
)
468 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
469 "DLINE active for %s",
470 get_client_name(client_p
, HIDE_IP
));
472 notify_banned_client(client_p
, aconf
, D_LINED
);
473 continue; /* and go examine next fd/client_p */
476 if(!IsPerson(client_p
))
479 if((aconf
= find_kline(client_p
)) != NULL
)
481 if(IsExemptKline(client_p
))
483 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
484 "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
485 get_client_name(client_p
, HIDE_IP
),
486 aconf
->user
, aconf
->host
);
490 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
491 "KLINE active for %s",
492 get_client_name(client_p
, HIDE_IP
));
493 notify_banned_client(client_p
, aconf
, K_LINED
);
496 else if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
498 if(IsExemptKline(client_p
))
500 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
501 "XLINE over-ruled for %s, client is kline_exempt [%s]",
502 get_client_name(client_p
, HIDE_IP
),
507 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
508 get_client_name(client_p
, HIDE_IP
));
510 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
515 /* also check the unknowns list for new dlines */
516 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
518 client_p
= ptr
->data
;
520 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)))
522 if(aconf
->status
& CONF_EXEMPTDLINE
)
525 notify_banned_client(client_p
, aconf
, D_LINED
);
531 /* check_klines_event()
535 * side effects - check_klines() is called, kline_queued unset
538 check_klines_event(void *unused
)
548 * side effects - all clients will be checked for klines
553 struct Client
*client_p
;
554 struct ConfItem
*aconf
;
556 rb_dlink_node
*next_ptr
;
558 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
560 client_p
= ptr
->data
;
562 if(IsMe(client_p
) || !IsPerson(client_p
))
565 if((aconf
= find_kline(client_p
)) != NULL
)
567 if(IsExemptKline(client_p
))
569 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
570 "KLINE over-ruled for %s, client is kline_exempt",
571 get_client_name(client_p
, HIDE_IP
));
575 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
576 "KLINE active for %s",
577 get_client_name(client_p
, HIDE_IP
));
579 notify_banned_client(client_p
, aconf
, K_LINED
);
589 * side effects - all clients will be checked for dlines
594 struct Client
*client_p
;
595 struct ConfItem
*aconf
;
597 rb_dlink_node
*next_ptr
;
599 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
601 client_p
= ptr
->data
;
606 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
608 if(aconf
->status
& CONF_EXEMPTDLINE
)
611 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
612 "DLINE active for %s",
613 get_client_name(client_p
, HIDE_IP
));
615 notify_banned_client(client_p
, aconf
, D_LINED
);
620 /* dlines need to be checked against unknowns too */
621 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
623 client_p
= ptr
->data
;
625 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
627 if(aconf
->status
& CONF_EXEMPTDLINE
)
630 notify_banned_client(client_p
, aconf
, D_LINED
);
639 * side effects - all clients will be checked for xlines
644 struct Client
*client_p
;
645 struct ConfItem
*aconf
;
647 rb_dlink_node
*next_ptr
;
649 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
651 client_p
= ptr
->data
;
653 if(IsMe(client_p
) || !IsPerson(client_p
))
656 if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
658 if(IsExemptKline(client_p
))
660 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
661 "XLINE over-ruled for %s, client is kline_exempt",
662 get_client_name(client_p
, HIDE_IP
));
666 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
667 get_client_name(client_p
, HIDE_IP
));
669 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
676 * update_client_exit_stats
678 * input - pointer to client
683 update_client_exit_stats(struct Client
*client_p
)
685 if(IsServer(client_p
))
687 sendto_realops_snomask(SNO_EXTERNAL
, L_ALL
,
688 "Server %s split from %s",
689 client_p
->name
, client_p
->servptr
->name
);
690 if(HasSentEob(client_p
))
693 else if(IsClient(client_p
))
698 if(IsInvisible(client_p
))
702 if(splitchecking
&& !splitmode
)
703 check_splitmode(NULL
);
707 * release_client_state
709 * input - pointer to client to release
714 release_client_state(struct Client
*client_p
)
716 if(client_p
->user
!= NULL
)
718 free_user(client_p
->user
, client_p
); /* try this here */
722 if(client_p
->serv
->user
!= NULL
)
723 free_user(client_p
->serv
->user
, client_p
);
724 if(client_p
->serv
->fullcaps
)
725 rb_free(client_p
->serv
->fullcaps
);
726 rb_free(client_p
->serv
);
731 * remove_client_from_list
732 * inputs - point to client to remove
734 * side effects - taken the code from ExitOneClient() for this
735 * and placed it here. - avalon
738 remove_client_from_list(struct Client
*client_p
)
740 s_assert(NULL
!= client_p
);
745 /* A client made with make_client()
746 * is on the unknown_list until removed.
747 * If it =does= happen to exit before its removed from that list
748 * and its =not= on the global_client_list, it will core here.
749 * short circuit that case now -db
751 if(client_p
->node
.prev
== NULL
&& client_p
->node
.next
== NULL
)
754 rb_dlinkDelete(&client_p
->node
, &global_client_list
);
756 update_client_exit_stats(client_p
);
761 * find_person - find person by (nick)name.
762 * inputs - pointer to name
763 * output - return client pointer
767 find_person(const char *name
)
769 struct Client
*c2ptr
;
771 c2ptr
= find_client(name
);
773 if(c2ptr
&& IsPerson(c2ptr
))
779 find_named_person(const char *name
)
781 struct Client
*c2ptr
;
783 c2ptr
= find_named_client(name
);
785 if(c2ptr
&& IsPerson(c2ptr
))
792 * find_chasing - find the client structure for a nick name (user)
793 * using history mechanism if necessary. If the client is not found,
794 * an error message (NO SUCH NICK) is generated. If the client was found
795 * through the history, chasing will be 1 and otherwise 0.
798 find_chasing(struct Client
*source_p
, const char *user
, int *chasing
)
802 if(MyClient(source_p
))
803 who
= find_named_person(user
);
805 who
= find_person(user
);
810 if(who
|| IsDigit(*user
))
813 if(!(who
= get_history(user
, (long) KILLCHASETIMELIMIT
)))
815 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
816 form_str(ERR_NOSUCHNICK
), user
);
825 * get_client_name - Return the name of the client
826 * for various tracking and
827 * admin purposes. The main purpose of this function is to
828 * return the "socket host" name of the client, if that
829 * differs from the advertised name (other than case).
830 * But, this can be used to any client structure.
833 * Watch out the allocation of "nbuf", if either source_p->name
834 * or source_p->sockhost gets changed into pointers instead of
835 * directly allocated within the structure...
838 * Function return either a pointer to the structure (source_p) or
839 * to internal buffer (nbuf). *NEVER* use the returned pointer
840 * to modify what it points!!!
844 get_client_name(struct Client
*client
, int showip
)
846 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
848 s_assert(NULL
!= client
);
852 if(MyConnect(client
))
854 if(!irccmp(client
->name
, client
->host
))
857 if(ConfigFileEntry
.hide_spoof_ips
&&
858 showip
== SHOW_IP
&& IsIPSpoof(client
))
860 #ifdef HIDE_SERVERS_IPS
861 if(IsAnyServer(client
))
865 /* And finally, let's get the host information, ip or name */
869 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
870 client
->name
, client
->username
,
874 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
875 client
->name
, client
->username
);
878 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
879 client
->name
, client
->username
, client
->host
);
884 /* As pointed out by Adel Mezibra
885 * Neph|l|m@EFnet. Was missing a return here.
891 get_server_name(struct Client
*target_p
, int showip
)
893 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
898 if(!MyConnect(target_p
) || !irccmp(target_p
->name
, target_p
->host
))
899 return target_p
->name
;
901 #ifdef HIDE_SERVERS_IPS
902 if(EmptyString(target_p
->name
))
904 rb_snprintf(nbuf
, sizeof(nbuf
), "[%s@255.255.255.255]",
909 return target_p
->name
;
915 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
916 target_p
->name
, target_p
->username
,
921 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
922 target_p
->name
, target_p
->username
);
925 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
926 target_p
->name
, target_p
->username
,
935 * This version is the same as get_client_name, but doesnt contain the
936 * code that will hide IPs always. This should be used for logfiles.
939 log_client_name(struct Client
*target_p
, int showip
)
941 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
946 if(MyConnect(target_p
))
948 if(irccmp(target_p
->name
, target_p
->host
) == 0)
949 return target_p
->name
;
954 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
955 target_p
->username
, target_p
->sockhost
);
959 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
960 target_p
->name
, target_p
->username
);
963 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
964 target_p
->username
, target_p
->host
);
970 return target_p
->name
;
973 /* is_remote_connect - Returns whether a server was /connect'ed by a remote
974 * oper (send notices netwide) */
976 is_remote_connect(struct Client
*client_p
)
980 if (client_p
->serv
== NULL
)
982 oper
= find_named_person(client_p
->serv
->by
);
983 return oper
!= NULL
&& IsOper(oper
) && !MyConnect(oper
);
987 free_exited_clients(void *unused
)
989 rb_dlink_node
*ptr
, *next
;
990 struct Client
*target_p
;
992 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_list
.head
)
994 target_p
= ptr
->data
;
996 #ifdef DEBUG_EXITED_CLIENTS
998 struct abort_client
*abt
;
1002 RB_DLINK_FOREACH(aptr
, abort_list
.head
)
1005 if(abt
->client
== target_p
)
1008 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1009 "On abort_list: %s stat: %u flags: %u/%u handler: %c",
1010 target_p
->name
, (unsigned int) target_p
->status
,
1011 target_p
->flags
, target_p
->flags2
, target_p
->handler
);
1012 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1013 "Please report this to the charybdis developers!");
1020 rb_dlinkDestroy(ptr
, &dead_list
);
1026 if(ptr
->data
== NULL
)
1028 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1029 "Warning: null client on dead_list!");
1030 rb_dlinkDestroy(ptr
, &dead_list
);
1033 release_client_state(target_p
);
1034 free_client(target_p
);
1035 rb_dlinkDestroy(ptr
, &dead_list
);
1038 #ifdef DEBUG_EXITED_CLIENTS
1039 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_remote_list
.head
)
1041 target_p
= ptr
->data
;
1043 if(ptr
->data
== NULL
)
1045 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1046 "Warning: null client on dead_list!");
1047 rb_dlinkDestroy(ptr
, &dead_list
);
1050 release_client_state(target_p
);
1051 free_client(target_p
);
1052 rb_dlinkDestroy(ptr
, &dead_remote_list
);
1059 ** Recursively send QUITs and SQUITs for source_p and all its dependent clients
1060 ** and servers to those servers that need them. A server needs the client
1061 ** QUITs if it can't figure them out from the SQUIT (ie pre-TS4) or if it
1062 ** isn't getting the SQUIT because of @#(*&@)# hostmasking. With TS4, once
1063 ** a link gets a SQUIT, it doesn't need any QUIT/SQUITs for clients depending
1064 ** on that one -orabidoo
1067 recurse_send_quits(struct Client
*client_p
, struct Client
*source_p
,
1068 struct Client
*to
, const char *comment1
,
1069 const char *comment
)
1071 struct Client
*target_p
;
1072 rb_dlink_node
*ptr
, *ptr_next
;
1073 /* If this server can handle quit storm (QS) removal
1074 * of dependents, just send the SQUIT
1077 if(IsCapable(to
, CAP_QS
))
1079 sendto_one(to
, "SQUIT %s :%s",
1080 get_id(source_p
, to
), comment
);
1084 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1086 target_p
= ptr
->data
;
1087 sendto_one(to
, ":%s QUIT :%s", target_p
->name
, comment1
);
1089 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1091 target_p
= ptr
->data
;
1092 recurse_send_quits(client_p
, target_p
, to
, comment1
, comment
);
1094 sendto_one(to
, "SQUIT %s :%s", source_p
->name
, comment
);
1099 ** Remove all clients that depend on source_p; assumes all (S)QUITs have
1100 ** already been sent. we make sure to exit a server's dependent clients
1101 ** and servers before the server itself; exit_one_client takes care of
1102 ** actually removing things off llists. tweaked from +CSr31 -orabidoo
1105 * added sanity test code.... source_p->serv might be NULL...
1108 recurse_remove_clients(struct Client
*source_p
, const char *comment
)
1110 struct Client
*target_p
;
1111 rb_dlink_node
*ptr
, *ptr_next
;
1116 if(source_p
->serv
== NULL
) /* oooops. uh this is actually a major bug */
1119 /* this is very ugly, but it saves cpu :P */
1120 if(ConfigFileEntry
.nick_delay
> 0)
1122 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1124 target_p
= ptr
->data
;
1125 target_p
->flags
|= FLAGS_KILLED
;
1126 add_nd_entry(target_p
->name
);
1128 if(!IsDead(target_p
) && !IsClosing(target_p
))
1129 exit_remote_client(NULL
, target_p
, &me
, comment
);
1134 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1136 target_p
= ptr
->data
;
1137 target_p
->flags
|= FLAGS_KILLED
;
1139 if(!IsDead(target_p
) && !IsClosing(target_p
))
1140 exit_remote_client(NULL
, target_p
, &me
, comment
);
1144 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1146 target_p
= ptr
->data
;
1147 recurse_remove_clients(target_p
, comment
);
1148 qs_server(NULL
, target_p
, &me
, comment
);
1153 ** Remove *everything* that depends on source_p, from all lists, and sending
1154 ** all necessary QUITs and SQUITs. source_p itself is still on the lists,
1155 ** and its SQUITs have been sent except for the upstream one -orabidoo
1158 remove_dependents(struct Client
*client_p
,
1159 struct Client
*source_p
,
1160 struct Client
*from
, const char *comment
, const char *comment1
)
1163 rb_dlink_node
*ptr
, *next
;
1165 RB_DLINK_FOREACH_SAFE(ptr
, next
, serv_list
.head
)
1169 if(IsMe(to
) || to
== source_p
->from
||
1170 (to
== client_p
&& IsCapable(to
, CAP_QS
)))
1173 recurse_send_quits(client_p
, source_p
, to
, comment1
, comment
);
1176 recurse_remove_clients(source_p
, comment1
);
1180 exit_aborted_clients(void *unused
)
1182 struct abort_client
*abt
;
1183 rb_dlink_node
*ptr
, *next
;
1184 RB_DLINK_FOREACH_SAFE(ptr
, next
, abort_list
.head
)
1188 #ifdef DEBUG_EXITED_CLIENTS
1190 if(rb_dlinkFind(abt
->client
, &dead_list
))
1193 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1194 "On dead_list: %s stat: %u flags: %u/%u handler: %c",
1195 abt
->client
->name
, (unsigned int) abt
->client
->status
,
1196 abt
->client
->flags
, abt
->client
->flags2
, abt
->client
->handler
);
1197 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1198 "Please report this to the charybdis developers!");
1204 s_assert(*((unsigned long*)abt
->client
) != 0xdeadbeef); /* This is lame but its a debug thing */
1205 rb_dlinkDelete(ptr
, &abort_list
);
1207 if(IsAnyServer(abt
->client
))
1208 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1209 "Closing link to %s: %s",
1210 get_server_name(abt
->client
, HIDE_IP
), abt
->notice
);
1212 /* its no longer on abort list - we *must* remove
1213 * FLAGS_CLOSING otherwise exit_client() will not run --fl
1215 abt
->client
->flags
&= ~FLAGS_CLOSING
;
1216 exit_client(abt
->client
, abt
->client
, &me
, abt
->notice
);
1223 * dead_link - Adds client to a list of clients that need an exit_client()
1227 dead_link(struct Client
*client_p
)
1229 struct abort_client
*abt
;
1231 s_assert(!IsMe(client_p
));
1232 if(IsDead(client_p
) || IsClosing(client_p
) || IsMe(client_p
))
1235 abt
= (struct abort_client
*) rb_malloc(sizeof(struct abort_client
));
1237 if(client_p
->flags
& FLAGS_SENDQEX
)
1238 rb_strlcpy(abt
->notice
, "Max SendQ exceeded", sizeof(abt
->notice
));
1240 rb_snprintf(abt
->notice
, sizeof(abt
->notice
), "Write error: %s", strerror(errno
));
1242 abt
->client
= client_p
;
1243 SetIOError(client_p
);
1245 SetClosing(client_p
);
1246 rb_dlinkAdd(abt
, &abt
->node
, &abort_list
);
1250 /* This does the remove of the user from channels..local or remote */
1252 exit_generic_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1253 const char *comment
)
1255 rb_dlink_node
*ptr
, *next_ptr
;
1257 if(IsOper(source_p
))
1258 rb_dlinkFindDestroy(source_p
, &oper_list
);
1260 sendto_common_channels_local(source_p
, ":%s!%s@%s QUIT :%s",
1262 source_p
->username
, source_p
->host
, comment
);
1264 remove_user_from_channels(source_p
);
1266 /* Should not be in any channels now */
1267 s_assert(source_p
->user
->channel
.head
== NULL
);
1269 /* Clean up invitefield */
1270 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, source_p
->user
->invited
.head
)
1272 del_invite(ptr
->data
, source_p
);
1275 /* Clean up allow lists */
1276 del_all_accepts(source_p
);
1278 add_history(source_p
, 0);
1279 off_history(source_p
);
1281 monitor_signoff(source_p
);
1283 if(has_id(source_p
))
1284 del_from_id_hash(source_p
->id
, source_p
);
1286 del_from_hostname_hash(source_p
->orighost
, source_p
);
1287 del_from_client_hash(source_p
->name
, source_p
);
1288 remove_client_from_list(source_p
);
1292 * Assumes IsPerson(source_p) && !MyConnect(source_p)
1296 exit_remote_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1297 const char *comment
)
1299 exit_generic_client(client_p
, source_p
, from
, comment
);
1301 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1303 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->users
);
1306 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1308 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1309 ":%s QUIT :%s", use_id(source_p
), comment
);
1313 #ifdef DEBUG_EXITED_CLIENTS
1314 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1316 rb_dlinkAddAlloc(source_p
, &dead_list
);
1318 return(CLIENT_EXITED
);
1322 * This assumes IsUnknown(source_p) == TRUE and MyConnect(source_p) == TRUE
1326 exit_unknown_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1327 const char *comment
)
1329 delete_auth_queries(source_p
);
1330 if (source_p
->localClient
->dnsquery
)
1332 delete_resolver_queries(source_p
->localClient
->dnsquery
);
1333 rb_free(source_p
->localClient
->dnsquery
);
1335 del_unknown_ip(source_p
);
1336 rb_dlinkDelete(&source_p
->localClient
->tnode
, &unknown_list
);
1338 if(!IsIOError(source_p
))
1339 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)",
1340 source_p
->user
!= NULL
? source_p
->host
: "127.0.0.1",
1343 close_connection(source_p
);
1345 if(has_id(source_p
))
1346 del_from_id_hash(source_p
->id
, source_p
);
1348 del_from_hostname_hash(source_p
->host
, source_p
);
1349 del_from_client_hash(source_p
->name
, source_p
);
1350 remove_client_from_list(source_p
);
1352 rb_dlinkAddAlloc(source_p
, &dead_list
);
1354 /* Note that we don't need to add unknowns to the dead_list */
1355 return(CLIENT_EXITED
);
1359 exit_remote_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1360 const char *comment
)
1362 static char comment1
[(HOSTLEN
*2)+2];
1363 static char newcomment
[BUFSIZE
];
1364 struct Client
*target_p
;
1366 if(ConfigServerHide
.flatten_links
)
1367 strcpy(comment1
, "*.net *.split");
1370 strcpy(comment1
, source_p
->servptr
->name
);
1371 strcat(comment1
, " ");
1372 strcat(comment1
, source_p
->name
);
1375 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1376 from
->name
, comment
);
1378 if(source_p
->serv
!= NULL
)
1379 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1381 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1382 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1386 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1387 target_p
= source_p
->from
;
1389 if(target_p
!= NULL
&& IsServer(target_p
) && target_p
!= client_p
&&
1390 !IsMe(target_p
) && (source_p
->flags
& FLAGS_KILLED
) == 0)
1392 sendto_one(target_p
, ":%s SQUIT %s :%s",
1393 get_id(from
, target_p
), get_id(source_p
, target_p
),
1397 if(has_id(source_p
))
1398 del_from_id_hash(source_p
->id
, source_p
);
1400 del_from_client_hash(source_p
->name
, source_p
);
1401 remove_client_from_list(source_p
);
1402 scache_split(source_p
->serv
->nameinfo
);
1405 #ifdef DEBUG_EXITED_CLIENTS
1406 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1408 rb_dlinkAddAlloc(source_p
, &dead_list
);
1414 qs_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1415 const char *comment
)
1417 struct Client
*target_p
;
1419 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1420 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1424 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1425 target_p
= source_p
->from
;
1427 if(has_id(source_p
))
1428 del_from_id_hash(source_p
->id
, source_p
);
1430 del_from_client_hash(source_p
->name
, source_p
);
1431 remove_client_from_list(source_p
);
1432 scache_split(source_p
->serv
->nameinfo
);
1435 rb_dlinkAddAlloc(source_p
, &dead_list
);
1440 exit_local_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1441 const char *comment
)
1443 static char comment1
[(HOSTLEN
*2)+2];
1444 static char newcomment
[BUFSIZE
];
1445 unsigned int sendk
, recvk
;
1447 rb_dlinkDelete(&source_p
->localClient
->tnode
, &serv_list
);
1448 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1450 unset_chcap_usage_counts(source_p
);
1451 sendk
= source_p
->localClient
->sendK
;
1452 recvk
= source_p
->localClient
->receiveK
;
1454 /* Always show source here, so the server notices show
1455 * which side initiated the split -- jilles
1457 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1458 from
== source_p
? me
.name
: from
->name
, comment
);
1459 if (!IsIOError(source_p
))
1460 sendto_one(source_p
, "SQUIT %s :%s", use_id(source_p
),
1462 if(client_p
!= NULL
&& source_p
!= client_p
&& !IsIOError(source_p
))
1464 sendto_one(source_p
, "ERROR :Closing Link: 127.0.0.1 %s (%s)",
1465 source_p
->name
, comment
);
1468 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1469 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1474 close_connection(source_p
);
1476 if(ConfigServerHide
.flatten_links
)
1477 strcpy(comment1
, "*.net *.split");
1480 strcpy(comment1
, source_p
->servptr
->name
);
1481 strcat(comment1
, " ");
1482 strcat(comment1
, source_p
->name
);
1485 if(source_p
->serv
!= NULL
)
1486 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1488 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "%s was connected"
1489 " for %ld seconds. %d/%d sendK/recvK.",
1490 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1492 ilog(L_SERVER
, "%s was connected for %ld seconds. %d/%d sendK/recvK.",
1493 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1495 if(has_id(source_p
))
1496 del_from_id_hash(source_p
->id
, source_p
);
1498 del_from_client_hash(source_p
->name
, source_p
);
1499 remove_client_from_list(source_p
);
1500 scache_split(source_p
->serv
->nameinfo
);
1503 rb_dlinkAddAlloc(source_p
, &dead_list
);
1509 * This assumes IsPerson(source_p) == TRUE && MyConnect(source_p) == TRUE
1513 exit_local_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1514 const char *comment
)
1516 unsigned long on_for
;
1519 exit_generic_client(client_p
, source_p
, from
, comment
);
1520 clear_monitor(source_p
);
1522 s_assert(IsPerson(source_p
));
1523 rb_dlinkDelete(&source_p
->localClient
->tnode
, &lclient_list
);
1524 rb_dlinkDelete(&source_p
->lnode
, &me
.serv
->users
);
1526 if(IsOper(source_p
))
1527 rb_dlinkFindDestroy(source_p
, &local_oper_list
);
1529 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
1530 "Client exiting: %s (%s@%s) [%s] [%s]",
1532 source_p
->username
, source_p
->host
, comment
,
1533 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255");
1535 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
1536 "CLIEXIT %s %s %s %s 0 %s",
1537 source_p
->name
, source_p
->username
, source_p
->host
,
1538 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255",
1541 on_for
= rb_current_time() - source_p
->localClient
->firsttime
;
1543 ilog(L_USER
, "%s (%3lu:%02lu:%02lu): %s!%s@%s %d/%d",
1544 rb_ctime(rb_current_time(), tbuf
, sizeof(tbuf
)), on_for
/ 3600,
1545 (on_for
% 3600) / 60, on_for
% 60,
1546 source_p
->name
, source_p
->username
, source_p
->host
,
1547 source_p
->localClient
->sendK
, source_p
->localClient
->receiveK
);
1549 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)", source_p
->host
, comment
);
1550 close_connection(source_p
);
1552 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1554 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1555 ":%s QUIT :%s", use_id(source_p
), comment
);
1559 rb_dlinkAddAlloc(source_p
, &dead_list
);
1560 return(CLIENT_EXITED
);
1565 ** exit_client - This is old "m_bye". Name changed, because this is not a
1566 ** protocol function, but a general server utility function.
1568 ** This function exits a client of *any* type (user, server, etc)
1569 ** from this server. Also, this generates all necessary prototol
1570 ** messages that this exit may cause.
1572 ** 1) If the client is a local client, then this implicitly
1573 ** exits all other clients depending on this connection (e.g.
1574 ** remote clients having 'from'-field that points to this.
1576 ** 2) If the client is a remote client, then only this is exited.
1578 ** For convenience, this function returns a suitable value for
1579 ** m_function return value:
1581 ** CLIENT_EXITED if (client_p == source_p)
1582 ** 0 if (client_p != source_p)
1585 exit_client(struct Client
*client_p
, /* The local client originating the
1586 * exit or NULL, if this exit is
1587 * generated by this server for
1589 * This will not get any of the
1590 * generated messages. */
1591 struct Client
*source_p
, /* Client exiting */
1592 struct Client
*from
, /* Client firing off this Exit,
1594 const char *comment
/* Reason for the exit */
1597 hook_data_client_exit hdata
;
1598 if(IsClosing(source_p
))
1601 /* note, this HAS to be here, when we exit a client we attempt to
1602 * send them data, if this generates a write error we must *not* add
1603 * them to the abort list --fl
1605 SetClosing(source_p
);
1607 hdata
.local_link
= client_p
;
1608 hdata
.target
= source_p
;
1610 hdata
.comment
= comment
;
1611 call_hook(h_client_exit
, &hdata
);
1613 if(MyConnect(source_p
))
1615 /* Local clients of various types */
1616 if(IsPerson(source_p
))
1617 return exit_local_client(client_p
, source_p
, from
, comment
);
1618 else if(IsServer(source_p
))
1619 return exit_local_server(client_p
, source_p
, from
, comment
);
1620 /* IsUnknown || IsConnecting || IsHandShake */
1621 else if(!IsReject(source_p
))
1622 return exit_unknown_client(client_p
, source_p
, from
, comment
);
1627 if(IsPerson(source_p
))
1628 return exit_remote_client(client_p
, source_p
, from
, comment
);
1629 else if(IsServer(source_p
))
1630 return exit_remote_server(client_p
, source_p
, from
, comment
);
1637 * Count up local client memory
1640 /* XXX one common Client list now */
1642 count_local_client_memory(size_t * count
, size_t * local_client_memory_used
)
1645 rb_bh_usage(lclient_heap
, count
, NULL
, &lusage
, NULL
);
1646 *local_client_memory_used
= lusage
+ (*count
* (sizeof(void *) + sizeof(struct Client
)));
1650 * Count up remote client memory
1653 count_remote_client_memory(size_t * count
, size_t * remote_client_memory_used
)
1655 size_t lcount
, rcount
;
1656 rb_bh_usage(lclient_heap
, &lcount
, NULL
, NULL
, NULL
);
1657 rb_bh_usage(client_heap
, &rcount
, NULL
, NULL
, NULL
);
1658 *count
= rcount
- lcount
;
1659 *remote_client_memory_used
= *count
* (sizeof(void *) + sizeof(struct Client
));
1664 * accept processing, this adds a form of "caller ID" to ircd
1666 * If a client puts themselves into "caller ID only" mode,
1667 * only clients that match a client pointer they have put on
1668 * the accept list will be allowed to message them.
1670 * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1672 * [target.allow_list] -> [ source1 ] -> [source2 ]
1674 * i.e. a target will have a link list of source pointers it will allow
1675 * each source client then has a back pointer pointing back
1676 * to the client that has it on its accept list.
1677 * This allows for exit_one_client to remove these now bogus entries
1678 * from any client having an accept on them.
1683 * inputs - pointer to exiting client
1685 * side effects - Walk through given clients allow_list and on_allow_list
1686 * remove all references to this client
1689 del_all_accepts(struct Client
*client_p
)
1692 rb_dlink_node
*next_ptr
;
1693 struct Client
*target_p
;
1695 if(MyClient(client_p
) && client_p
->localClient
->allow_list
.head
)
1697 /* clear this clients accept list, and remove them from
1698 * everyones on_accept_list
1700 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->localClient
->allow_list
.head
)
1702 target_p
= ptr
->data
;
1703 rb_dlinkFindDestroy(client_p
, &target_p
->on_allow_list
);
1704 rb_dlinkDestroy(ptr
, &client_p
->localClient
->allow_list
);
1708 /* remove this client from everyones accept list */
1709 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
1711 target_p
= ptr
->data
;
1712 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
1713 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
1718 * show_ip() - asks if the true IP shoudl be shown when source is
1719 * askin for info about target
1721 * Inputs - source_p who is asking
1722 * - target_p who do we want the info on
1723 * Output - returns 1 if clear IP can be showed, otherwise 0
1724 * Side Effects - none
1728 show_ip(struct Client
*source_p
, struct Client
*target_p
)
1730 if(IsAnyServer(target_p
))
1732 #ifndef HIDE_SERVERS_IPS
1733 if(source_p
== NULL
|| IsOper(source_p
))
1738 else if(IsIPSpoof(target_p
))
1740 /* source == NULL indicates message is being sent
1743 if(!ConfigFileEntry
.hide_spoof_ips
&&
1744 (source_p
== NULL
|| MyOper(source_p
)))
1748 else if(IsDynSpoof(target_p
) && (source_p
!= NULL
&& !IsOper(source_p
)))
1755 show_ip_conf(struct ConfItem
*aconf
, struct Client
*source_p
)
1757 if(IsConfDoSpoofIp(aconf
))
1759 if(!ConfigFileEntry
.hide_spoof_ips
&& MyOper(source_p
))
1774 * side effects - Creates a block heap for struct Users
1777 static rb_bh
*user_heap
;
1781 user_heap
= rb_bh_create(sizeof(struct User
), USER_HEAP_SIZE
, "user_heap");
1789 * inputs - pointer to client struct
1790 * output - pointer to struct User
1791 * side effects - add's an User information block to a client
1792 * if it was not previously allocated.
1795 make_user(struct Client
*client_p
)
1799 user
= client_p
->user
;
1802 user
= (struct User
*) rb_bh_alloc(user_heap
);
1804 client_p
->user
= user
;
1812 * inputs - pointer to client struct
1813 * output - pointer to server_t
1814 * side effects - add's an Server information block to a client
1815 * if it was not previously allocated.
1818 make_server(struct Client
*client_p
)
1820 server_t
*serv
= client_p
->serv
;
1824 serv
= (server_t
*) rb_malloc(sizeof(server_t
));
1825 client_p
->serv
= serv
;
1827 return client_p
->serv
;
1833 * inputs - pointer to user struct
1834 * - pointer to client struct
1836 * side effects - Decrease user reference count by one and release block,
1837 * if count reaches 0
1840 free_user(struct User
*user
, struct Client
*client_p
)
1842 free_away(client_p
);
1844 if(--user
->refcnt
<= 0)
1847 rb_free((char *) user
->away
);
1851 if(user
->refcnt
< 0 || user
->invited
.head
|| user
->channel
.head
)
1853 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1854 "* %#lx user (%s!%s@%s) %#lx %#lx %#lx %lu %d *",
1855 (unsigned long) client_p
,
1856 client_p
? client_p
->
1860 (unsigned long) user
,
1861 (unsigned long) user
->invited
.head
,
1862 (unsigned long) user
->channel
.head
,
1863 rb_dlink_list_length(&user
->channel
),
1865 s_assert(!user
->refcnt
);
1866 s_assert(!user
->invited
.head
);
1867 s_assert(!user
->channel
.head
);
1870 rb_bh_free(user_heap
, user
);
1875 allocate_away(struct Client
*client_p
)
1877 if(client_p
->user
->away
== NULL
)
1878 client_p
->user
->away
= rb_bh_alloc(away_heap
);
1883 free_away(struct Client
*client_p
)
1885 if(client_p
->user
!= NULL
&& client_p
->user
->away
!= NULL
) {
1886 rb_bh_free(away_heap
, client_p
->user
->away
);
1887 client_p
->user
->away
= NULL
;
1896 for(i
= 0; i
< 3; i
++)
1897 current_uid
[i
] = me
.id
[i
];
1899 for(i
= 3; i
< 9; i
++)
1900 current_uid
[i
] = 'A';
1902 current_uid
[9] = '\0';
1911 for(i
= 8; i
> 3; i
--)
1913 if(current_uid
[i
] == 'Z')
1915 current_uid
[i
] = '0';
1918 else if(current_uid
[i
] != '9')
1924 current_uid
[i
] = 'A';
1927 /* if this next if() triggers, we're fucked. */
1928 if(current_uid
[3] == 'Z')
1930 current_uid
[i
] = 'A';
1941 * Close the physical connection. This function must make
1942 * MyConnect(client_p) == FALSE, and set client_p->from == NULL.
1945 close_connection(struct Client
*client_p
)
1947 s_assert(client_p
!= NULL
);
1948 if(client_p
== NULL
)
1951 s_assert(MyConnect(client_p
));
1952 if(!MyConnect(client_p
))
1955 if(IsServer(client_p
))
1957 struct server_conf
*server_p
;
1959 ServerStats
.is_sv
++;
1960 ServerStats
.is_sbs
+= client_p
->localClient
->sendB
;
1961 ServerStats
.is_sbr
+= client_p
->localClient
->receiveB
;
1962 ServerStats
.is_sti
+= rb_current_time() - client_p
->localClient
->firsttime
;
1965 * If the connection has been up for a long amount of time, schedule
1966 * a 'quick' reconnect, else reset the next-connect cycle.
1968 if((server_p
= find_server_conf(client_p
->name
)) != NULL
)
1971 * Reschedule a faster reconnect, if this was a automatically
1972 * connected configuration entry. (Note that if we have had
1973 * a rehash in between, the status has been changed to
1974 * CONF_ILLEGAL). But only do this if it was a "good" link.
1976 server_p
->hold
= time(NULL
);
1978 (server_p
->hold
- client_p
->localClient
->lasttime
>
1979 HANGONGOODLINK
) ? HANGONRETRYDELAY
: ConFreq(server_p
->class);
1983 else if(IsClient(client_p
))
1985 ServerStats
.is_cl
++;
1986 ServerStats
.is_cbs
+= client_p
->localClient
->sendB
;
1987 ServerStats
.is_cbr
+= client_p
->localClient
->receiveB
;
1988 ServerStats
.is_cti
+= rb_current_time() - client_p
->localClient
->firsttime
;
1991 ServerStats
.is_ni
++;
1993 if(client_p
->localClient
->F
!= NULL
)
1995 /* attempt to flush any pending dbufs. Evil, but .. -- adrian */
1996 if(!IsIOError(client_p
))
1997 send_queued(client_p
);
1999 del_from_cli_fd_hash(client_p
);
2000 rb_close(client_p
->localClient
->F
);
2001 client_p
->localClient
->F
= NULL
;
2004 rb_linebuf_donebuf(&client_p
->localClient
->buf_sendq
);
2005 rb_linebuf_donebuf(&client_p
->localClient
->buf_recvq
);
2006 detach_conf(client_p
);
2008 /* XXX shouldnt really be done here. */
2009 detach_server_conf(client_p
);
2011 client_p
->from
= NULL
; /* ...this should catch them! >:) --msa */
2012 ClearMyConnect(client_p
);
2013 SetIOError(client_p
);
2019 error_exit_client(struct Client
*client_p
, int error
)
2022 * ...hmm, with non-blocking sockets we might get
2023 * here from quite valid reasons, although.. why
2024 * would select report "data available" when there
2025 * wasn't... so, this must be an error anyway... --msa
2026 * actually, EOF occurs when read() returns 0 and
2027 * in due course, select() returns that fd as ready
2028 * for reading even though it ends up being an EOF. -avalon
2031 int current_error
= rb_get_sockerr(client_p
->localClient
->F
);
2033 SetIOError(client_p
);
2035 if(IsServer(client_p
) || IsHandshake(client_p
))
2039 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2040 "Server %s closed the connection",
2041 get_server_name(client_p
, SHOW_IP
));
2043 ilog(L_SERVER
, "Server %s closed the connection",
2044 log_client_name(client_p
, SHOW_IP
));
2048 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2049 "Lost connection to %s: %s",
2050 client_p
->name
, strerror(current_error
));
2051 ilog(L_SERVER
, "Lost connection to %s: %s",
2052 log_client_name(client_p
, SHOW_IP
), strerror(current_error
));
2057 rb_strlcpy(errmsg
, "Remote host closed the connection", sizeof(errmsg
));
2059 rb_snprintf(errmsg
, sizeof(errmsg
), "Read error: %s", strerror(current_error
));
2061 exit_client(client_p
, client_p
, &me
, errmsg
);