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"
60 #define DEBUG_EXITED_CLIENTS
62 static void check_pings_list(rb_dlink_list
* list
);
63 static void check_unknowns_list(rb_dlink_list
* list
);
64 static void free_exited_clients(void *unused
);
65 static void exit_aborted_clients(void *unused
);
67 static int exit_remote_client(struct Client
*, struct Client
*, struct Client
*,const char *);
68 static int exit_remote_server(struct Client
*, struct Client
*, struct Client
*,const char *);
69 static int exit_local_client(struct Client
*, struct Client
*, struct Client
*,const char *);
70 static int exit_unknown_client(struct Client
*, struct Client
*, struct Client
*,const char *);
71 static int exit_local_server(struct Client
*, struct Client
*, struct Client
*,const char *);
72 static int qs_server(struct Client
*, struct Client
*, struct Client
*, const char *comment
);
74 static EVH check_pings
;
76 static rb_bh
*client_heap
= NULL
;
77 static rb_bh
*lclient_heap
= NULL
;
78 static rb_bh
*pclient_heap
= NULL
;
79 static rb_bh
*user_heap
= NULL
;
80 static rb_bh
*away_heap
= NULL
;
81 static char current_uid
[IDLEN
];
83 struct Dictionary
*nd_dict
= NULL
;
91 rb_dlink_list dead_list
;
92 #ifdef DEBUG_EXITED_CLIENTS
93 static rb_dlink_list dead_remote_list
;
99 struct Client
*client
;
100 char notice
[REASONLEN
];
103 static rb_dlink_list abort_list
;
111 * side effects - initialize client free memory
117 * start off the check ping event .. -- adrian
118 * Every 30 seconds is plenty -- db
120 client_heap
= rb_bh_create(sizeof(struct Client
), CLIENT_HEAP_SIZE
, "client_heap");
121 lclient_heap
= rb_bh_create(sizeof(struct LocalUser
), LCLIENT_HEAP_SIZE
, "lclient_heap");
122 pclient_heap
= rb_bh_create(sizeof(struct PreClient
), PCLIENT_HEAP_SIZE
, "pclient_heap");
123 user_heap
= rb_bh_create(sizeof(struct User
), USER_HEAP_SIZE
, "user_heap");
124 away_heap
= rb_bh_create(AWAYLEN
, AWAY_HEAP_SIZE
, "away_heap");
126 rb_event_addish("check_pings", check_pings
, NULL
, 30);
127 rb_event_addish("free_exited_clients", &free_exited_clients
, NULL
, 4);
128 rb_event_addish("exit_aborted_clients", exit_aborted_clients
, NULL
, 1);
129 rb_event_add("flood_recalc", flood_recalc
, NULL
, 1);
131 nd_dict
= irc_dictionary_create(irccmp
);
136 * make_client - create a new Client struct and set it to initial state.
138 * from == NULL, create local client (a client connected
141 * from, create remote client (behind a socket
142 * associated with the client defined by
143 * 'from'). ('from' is a local client!!).
146 make_client(struct Client
*from
)
148 struct Client
*client_p
= NULL
;
149 struct LocalUser
*localClient
;
151 client_p
= rb_bh_alloc(client_heap
);
155 client_p
->from
= client_p
; /* 'from' of local client is self! */
157 localClient
= rb_bh_alloc(lclient_heap
);
158 SetMyConnect(client_p
);
159 client_p
->localClient
= localClient
;
161 client_p
->localClient
->lasttime
= client_p
->localClient
->firsttime
= rb_current_time();
163 client_p
->localClient
->F
= NULL
;
165 client_p
->preClient
= rb_bh_alloc(pclient_heap
);
167 /* as good a place as any... */
168 rb_dlinkAdd(client_p
, &client_p
->localClient
->tnode
, &unknown_list
);
171 { /* from is not NULL */
172 client_p
->localClient
= NULL
;
173 client_p
->preClient
= NULL
;
174 client_p
->from
= from
; /* 'from' of local client is self! */
177 SetUnknown(client_p
);
178 strcpy(client_p
->username
, "unknown");
184 free_pre_client(struct Client
*client_p
)
186 struct Blacklist
*blptr
;
188 s_assert(NULL
!= client_p
);
190 if(client_p
->preClient
== NULL
)
193 blptr
= client_p
->preClient
->dnsbl_listed
;
195 unref_blacklist(blptr
);
196 s_assert(rb_dlink_list_length(&client_p
->preClient
->dnsbl_queries
) == 0);
198 rb_bh_free(pclient_heap
, client_p
->preClient
);
199 client_p
->preClient
= NULL
;
203 free_local_client(struct Client
*client_p
)
205 s_assert(NULL
!= client_p
);
206 s_assert(&me
!= client_p
);
208 if(client_p
->localClient
== NULL
)
212 * clean up extra sockets from P-lines which have been discarded.
214 if(client_p
->localClient
->listener
)
216 s_assert(0 < client_p
->localClient
->listener
->ref_count
);
217 if(0 == --client_p
->localClient
->listener
->ref_count
218 && !client_p
->localClient
->listener
->active
)
219 free_listener(client_p
->localClient
->listener
);
220 client_p
->localClient
->listener
= 0;
223 if(client_p
->localClient
->F
!= NULL
)
225 del_from_cli_fd_hash(client_p
);
226 rb_close(client_p
->localClient
->F
);
229 if(client_p
->localClient
->passwd
)
231 memset(client_p
->localClient
->passwd
, 0,
232 strlen(client_p
->localClient
->passwd
));
233 rb_free(client_p
->localClient
->passwd
);
236 rb_free(client_p
->localClient
->auth_user
);
237 rb_free(client_p
->localClient
->challenge
);
238 rb_free(client_p
->localClient
->fullcaps
);
239 rb_free(client_p
->localClient
->opername
);
240 rb_free(client_p
->localClient
->mangledhost
);
241 if (client_p
->localClient
->privset
)
242 privilegeset_unref(client_p
->localClient
->privset
);
245 ssld_decrement_clicount(client_p
->localClient
->ssl_ctl
);
247 if(IsCapable(client_p
, CAP_ZIP
))
248 ssld_decrement_clicount(client_p
->localClient
->z_ctl
);
250 rb_bh_free(lclient_heap
, client_p
->localClient
);
251 client_p
->localClient
= NULL
;
255 free_client(struct Client
*client_p
)
257 s_assert(NULL
!= client_p
);
258 s_assert(&me
!= client_p
);
259 free_local_client(client_p
);
260 free_pre_client(client_p
);
261 rb_free(client_p
->certfp
);
262 rb_bh_free(client_heap
, client_p
);
266 * check_pings - go through the local client list and check activity
267 * kill off stuff that should die
269 * inputs - NOT USED (from event)
270 * output - next time_t when check_pings() should be called again
274 * A PING can be sent to clients as necessary.
276 * Client/Server ping outs are handled.
280 * Addon from adrian. We used to call this after nextping seconds,
281 * however I've changed it to run once a second. This is only for
282 * PING timeouts, not K/etc-line checks (thanks dianora!). Having it
283 * run once a second makes life a lot easier - when a new client connects
284 * and they need a ping in 4 seconds, if nextping was set to 20 seconds
285 * we end up waiting 20 seconds. This is stupid. :-)
286 * I will optimise (hah!) check_pings() once I've finished working on
287 * tidying up other network IO evilnesses.
292 check_pings(void *notused
)
294 check_pings_list(&lclient_list
);
295 check_pings_list(&serv_list
);
296 check_unknowns_list(&unknown_list
);
302 * inputs - pointer to list to check
307 check_pings_list(rb_dlink_list
* list
)
309 char scratch
[32]; /* way too generous but... */
310 struct Client
*client_p
; /* current local client_p being examined */
311 int ping
= 0; /* ping time value from client */
312 rb_dlink_node
*ptr
, *next_ptr
;
314 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
316 client_p
= ptr
->data
;
318 if(!MyConnect(client_p
) || IsDead(client_p
))
321 ping
= get_client_ping(client_p
);
323 if(ping
< (rb_current_time() - client_p
->localClient
->lasttime
))
326 * If the client/server hasnt talked to us in 2*ping seconds
327 * and it has a ping time, then close its connection.
329 if(((rb_current_time() - client_p
->localClient
->lasttime
) >= (2 * ping
)
330 && (client_p
->flags
& FLAGS_PINGSENT
)))
332 if(IsServer(client_p
))
334 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
335 "No response from %s, closing link",
338 "No response from %s, closing link",
339 log_client_name(client_p
, HIDE_IP
));
341 (void) rb_snprintf(scratch
, sizeof(scratch
),
342 "Ping timeout: %d seconds",
343 (int) (rb_current_time() - client_p
->localClient
->lasttime
));
345 exit_client(client_p
, client_p
, &me
, scratch
);
348 else if((client_p
->flags
& FLAGS_PINGSENT
) == 0)
351 * if we havent PINGed the connection and we havent
352 * heard from it in a while, PING it to make sure
355 client_p
->flags
|= FLAGS_PINGSENT
;
356 /* not nice but does the job */
357 client_p
->localClient
->lasttime
= rb_current_time() - ping
;
358 sendto_one(client_p
, "PING :%s", me
.name
);
367 * check_unknowns_list
369 * inputs - pointer to list of unknown clients
371 * side effects - unknown clients get marked for termination after n seconds
374 check_unknowns_list(rb_dlink_list
* list
)
376 rb_dlink_node
*ptr
, *next_ptr
;
377 struct Client
*client_p
;
380 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
382 client_p
= ptr
->data
;
384 if(IsDead(client_p
) || IsClosing(client_p
))
387 /* still has DNSbls to validate against */
388 if(client_p
->preClient
!= NULL
&&
389 rb_dlink_list_length(&client_p
->preClient
->dnsbl_queries
) > 0)
393 * Check UNKNOWN connections - if they have been in this state
394 * for > 30s, close them.
397 timeout
= IsAnyServer(client_p
) ? ConfigFileEntry
.connect_timeout
: 30;
398 if((rb_current_time() - client_p
->localClient
->firsttime
) > timeout
)
400 if(IsAnyServer(client_p
))
402 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
403 "No response from %s, closing link",
406 "No response from %s, closing link",
407 log_client_name(client_p
, HIDE_IP
));
409 exit_client(client_p
, client_p
, &me
, "Connection timed out");
415 notify_banned_client(struct Client
*client_p
, struct ConfItem
*aconf
, int ban
)
417 static const char conn_closed
[] = "Connection closed";
418 static const char d_lined
[] = "D-lined";
419 static const char k_lined
[] = "K-lined";
420 const char *reason
= NULL
;
421 const char *exit_reason
= conn_closed
;
423 if(ConfigFileEntry
.kline_with_reason
)
425 reason
= get_user_ban_reason(aconf
);
426 exit_reason
= reason
;
430 reason
= aconf
->status
== D_LINED
? d_lined
: k_lined
;
433 if(ban
== D_LINED
&& !IsPerson(client_p
))
434 sendto_one(client_p
, "NOTICE DLINE :*** You have been D-lined");
436 sendto_one(client_p
, form_str(ERR_YOUREBANNEDCREEP
),
437 me
.name
, client_p
->name
, reason
);
439 exit_client(client_p
, client_p
, &me
,
440 EmptyString(ConfigFileEntry
.kline_reason
) ? exit_reason
:
441 ConfigFileEntry
.kline_reason
);
448 * side effects - Check all connections for a pending k/dline against the
449 * client, exit the client if found.
452 check_banned_lines(void)
459 /* check_klines_event()
463 * side effects - check_klines() is called, kline_queued unset
466 check_klines_event(void *unused
)
476 * side effects - all clients will be checked for klines
481 struct Client
*client_p
;
482 struct ConfItem
*aconf
;
484 rb_dlink_node
*next_ptr
;
486 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
488 client_p
= ptr
->data
;
490 if(IsMe(client_p
) || !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
));
508 notify_banned_client(client_p
, aconf
, K_LINED
);
518 * side effects - all clients will be checked for dlines
523 struct Client
*client_p
;
524 struct ConfItem
*aconf
;
526 rb_dlink_node
*next_ptr
;
528 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
530 client_p
= ptr
->data
;
535 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
537 if(aconf
->status
& CONF_EXEMPTDLINE
)
540 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
541 "DLINE active for %s",
542 get_client_name(client_p
, HIDE_IP
));
544 notify_banned_client(client_p
, aconf
, D_LINED
);
549 /* dlines need to be checked against unknowns too */
550 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
552 client_p
= ptr
->data
;
554 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
556 if(aconf
->status
& CONF_EXEMPTDLINE
)
559 notify_banned_client(client_p
, aconf
, D_LINED
);
568 * side effects - all clients will be checked for xlines
573 struct Client
*client_p
;
574 struct ConfItem
*aconf
;
576 rb_dlink_node
*next_ptr
;
578 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
580 client_p
= ptr
->data
;
582 if(IsMe(client_p
) || !IsPerson(client_p
))
585 if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
587 if(IsExemptKline(client_p
))
589 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
590 "XLINE over-ruled for %s, client is kline_exempt [%s]",
591 get_client_name(client_p
, HIDE_IP
),
596 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
597 get_client_name(client_p
, HIDE_IP
));
599 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
607 * inputs - resv, reason, time
609 * side effects - all local clients matching resv will be FNC'd
612 resv_nick_fnc(const char *mask
, const char *reason
, int temp_time
)
614 struct Client
*client_p
, *target_p
;
616 rb_dlink_node
*next_ptr
;
618 char note
[NICKLEN
+10];
620 if (!ConfigFileEntry
.resv_fnc
)
623 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
625 client_p
= ptr
->data
;
627 if(IsMe(client_p
) || !IsPerson(client_p
) || IsExemptResv(client_p
))
630 /* Skip users that already have UID nicks. */
631 if(IsDigit(client_p
->name
[0]))
634 if(match_esc(mask
, client_p
->name
))
639 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
640 "RESV forced nick change for %s!%s@%s to %s; nick matched [%s] (%s)",
641 client_p
->name
, client_p
->username
, client_p
->host
, nick
, mask
, reason
);
643 sendto_realops_snomask(SNO_NCHANGE
, L_ALL
,
644 "Nick change: From %s to %s [%s@%s]",
645 client_p
->name
, nick
, client_p
->username
, client_p
->host
);
650 sendto_one_notice(client_p
,
651 ":*** Nick %s is temporarily unavailable on this server.",
656 sendto_one_notice(client_p
,
657 ":*** Nick %s is no longer available on this server.",
661 /* Do all of the nick-changing gymnastics. */
662 client_p
->tsinfo
= rb_current_time();
663 add_history(client_p
, 1);
665 monitor_signoff(client_p
);
667 invalidate_bancache_user(client_p
);
669 sendto_common_channels_local(client_p
, NOCAPS
, ":%s!%s@%s NICK :%s",
670 client_p
->name
, client_p
->username
, client_p
->host
, nick
);
671 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
, ":%s NICK %s :%ld",
672 use_id(client_p
), nick
, (long) client_p
->tsinfo
);
674 del_from_client_hash(client_p
->name
, client_p
);
675 rb_strlcpy(client_p
->name
, nick
, sizeof(client_p
->name
));
676 add_to_client_hash(nick
, client_p
);
678 monitor_signon(client_p
);
680 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
682 target_p
= ptr
->data
;
683 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
684 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
687 rb_snprintf(note
, sizeof(note
), "Nick: %s", nick
);
688 rb_note(client_p
->localClient
->F
, note
);
694 * update_client_exit_stats
696 * input - pointer to client
701 update_client_exit_stats(struct Client
*client_p
)
703 if(IsServer(client_p
))
705 sendto_realops_snomask(SNO_EXTERNAL
, L_ALL
,
706 "Server %s split from %s",
707 client_p
->name
, client_p
->servptr
->name
);
708 if(HasSentEob(client_p
))
711 else if(IsClient(client_p
))
716 if(IsInvisible(client_p
))
720 if(splitchecking
&& !splitmode
)
721 check_splitmode(NULL
);
725 * release_client_state
727 * input - pointer to client to release
732 release_client_state(struct Client
*client_p
)
734 if(client_p
->user
!= NULL
)
736 free_user(client_p
->user
, client_p
); /* try this here */
740 if(client_p
->serv
->user
!= NULL
)
741 free_user(client_p
->serv
->user
, client_p
);
742 if(client_p
->serv
->fullcaps
)
743 rb_free(client_p
->serv
->fullcaps
);
744 rb_free(client_p
->serv
);
749 * remove_client_from_list
750 * inputs - point to client to remove
752 * side effects - taken the code from ExitOneClient() for this
753 * and placed it here. - avalon
756 remove_client_from_list(struct Client
*client_p
)
758 s_assert(NULL
!= client_p
);
763 /* A client made with make_client()
764 * is on the unknown_list until removed.
765 * If it =does= happen to exit before its removed from that list
766 * and its =not= on the global_client_list, it will core here.
767 * short circuit that case now -db
769 if(client_p
->node
.prev
== NULL
&& client_p
->node
.next
== NULL
)
772 rb_dlinkDelete(&client_p
->node
, &global_client_list
);
774 update_client_exit_stats(client_p
);
779 * find_person - find person by (nick)name.
780 * inputs - pointer to name
781 * output - return client pointer
785 find_person(const char *name
)
787 struct Client
*c2ptr
;
789 c2ptr
= find_client(name
);
791 if(c2ptr
&& IsPerson(c2ptr
))
797 find_named_person(const char *name
)
799 struct Client
*c2ptr
;
801 c2ptr
= find_named_client(name
);
803 if(c2ptr
&& IsPerson(c2ptr
))
810 * find_chasing - find the client structure for a nick name (user)
811 * using history mechanism if necessary. If the client is not found,
812 * an error message (NO SUCH NICK) is generated. If the client was found
813 * through the history, chasing will be 1 and otherwise 0.
816 find_chasing(struct Client
*source_p
, const char *user
, int *chasing
)
820 if(MyClient(source_p
))
821 who
= find_named_person(user
);
823 who
= find_person(user
);
828 if(who
|| IsDigit(*user
))
831 if(!(who
= get_history(user
, (long) KILLCHASETIMELIMIT
)))
833 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
834 form_str(ERR_NOSUCHNICK
), user
);
843 * get_client_name - Return the name of the client
844 * for various tracking and
845 * admin purposes. The main purpose of this function is to
846 * return the "socket host" name of the client, if that
847 * differs from the advertised name (other than case).
848 * But, this can be used to any client structure.
851 * Watch out the allocation of "nbuf", if either source_p->name
852 * or source_p->sockhost gets changed into pointers instead of
853 * directly allocated within the structure...
856 * Function return either a pointer to the structure (source_p) or
857 * to internal buffer (nbuf). *NEVER* use the returned pointer
858 * to modify what it points!!!
862 get_client_name(struct Client
*client
, int showip
)
864 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
866 s_assert(NULL
!= client
);
870 if(MyConnect(client
))
872 if(!irccmp(client
->name
, client
->host
))
875 if(ConfigFileEntry
.hide_spoof_ips
&&
876 showip
== SHOW_IP
&& IsIPSpoof(client
))
878 if(IsAnyServer(client
))
881 /* And finally, let's get the host information, ip or name */
885 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
886 client
->name
, client
->username
,
890 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
891 client
->name
, client
->username
);
894 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
895 client
->name
, client
->username
, client
->host
);
900 /* As pointed out by Adel Mezibra
901 * Neph|l|m@EFnet. Was missing a return here.
908 * This version is the same as get_client_name, but doesnt contain the
909 * code that will hide IPs always. This should be used for logfiles.
912 log_client_name(struct Client
*target_p
, int showip
)
914 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
919 if(MyConnect(target_p
))
921 if(irccmp(target_p
->name
, target_p
->host
) == 0)
922 return target_p
->name
;
927 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
928 target_p
->username
, target_p
->sockhost
);
932 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
933 target_p
->username
, target_p
->host
);
939 return target_p
->name
;
942 /* is_remote_connect - Returns whether a server was /connect'ed by a remote
943 * oper (send notices netwide) */
945 is_remote_connect(struct Client
*client_p
)
949 if (client_p
->serv
== NULL
)
951 oper
= find_named_person(client_p
->serv
->by
);
952 return oper
!= NULL
&& IsOper(oper
) && !MyConnect(oper
);
956 free_exited_clients(void *unused
)
958 rb_dlink_node
*ptr
, *next
;
959 struct Client
*target_p
;
961 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_list
.head
)
963 target_p
= ptr
->data
;
965 #ifdef DEBUG_EXITED_CLIENTS
967 struct abort_client
*abt
;
971 RB_DLINK_FOREACH(aptr
, abort_list
.head
)
974 if(abt
->client
== target_p
)
977 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
978 "On abort_list: %s stat: %u flags: %u/%u handler: %c",
979 target_p
->name
, (unsigned int) target_p
->status
,
980 target_p
->flags
, target_p
->flags2
, target_p
->handler
);
981 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
982 "Please report this to the charybdis developers!");
989 rb_dlinkDestroy(ptr
, &dead_list
);
995 if(ptr
->data
== NULL
)
997 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
998 "Warning: null client on dead_list!");
999 rb_dlinkDestroy(ptr
, &dead_list
);
1002 release_client_state(target_p
);
1003 free_client(target_p
);
1004 rb_dlinkDestroy(ptr
, &dead_list
);
1007 #ifdef DEBUG_EXITED_CLIENTS
1008 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_remote_list
.head
)
1010 target_p
= ptr
->data
;
1012 if(ptr
->data
== NULL
)
1014 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1015 "Warning: null client on dead_list!");
1016 rb_dlinkDestroy(ptr
, &dead_list
);
1019 release_client_state(target_p
);
1020 free_client(target_p
);
1021 rb_dlinkDestroy(ptr
, &dead_remote_list
);
1028 ** Remove all clients that depend on source_p; assumes all (S)QUITs have
1029 ** already been sent. we make sure to exit a server's dependent clients
1030 ** and servers before the server itself; exit_one_client takes care of
1031 ** actually removing things off llists. tweaked from +CSr31 -orabidoo
1034 * added sanity test code.... source_p->serv might be NULL...
1037 recurse_remove_clients(struct Client
*source_p
, const char *comment
)
1039 struct Client
*target_p
;
1040 rb_dlink_node
*ptr
, *ptr_next
;
1045 if(source_p
->serv
== NULL
) /* oooops. uh this is actually a major bug */
1048 /* this is very ugly, but it saves cpu :P */
1049 if(ConfigFileEntry
.nick_delay
> 0)
1051 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1053 target_p
= ptr
->data
;
1054 target_p
->flags
|= FLAGS_KILLED
;
1055 add_nd_entry(target_p
->name
);
1057 if(!IsDead(target_p
) && !IsClosing(target_p
))
1058 exit_remote_client(NULL
, target_p
, &me
, comment
);
1063 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1065 target_p
= ptr
->data
;
1066 target_p
->flags
|= FLAGS_KILLED
;
1068 if(!IsDead(target_p
) && !IsClosing(target_p
))
1069 exit_remote_client(NULL
, target_p
, &me
, comment
);
1073 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1075 target_p
= ptr
->data
;
1076 recurse_remove_clients(target_p
, comment
);
1077 qs_server(NULL
, target_p
, &me
, comment
);
1082 ** Remove *everything* that depends on source_p, from all lists, and sending
1083 ** all necessary SQUITs. source_p itself is still on the lists,
1084 ** and its SQUITs have been sent except for the upstream one -orabidoo
1087 remove_dependents(struct Client
*client_p
,
1088 struct Client
*source_p
,
1089 struct Client
*from
, const char *comment
, const char *comment1
)
1092 rb_dlink_node
*ptr
, *next
;
1094 RB_DLINK_FOREACH_SAFE(ptr
, next
, serv_list
.head
)
1098 if(IsMe(to
) || to
== source_p
->from
|| to
== client_p
)
1101 sendto_one(to
, "SQUIT %s :%s", get_id(source_p
, to
), comment
);
1104 recurse_remove_clients(source_p
, comment1
);
1108 exit_aborted_clients(void *unused
)
1110 struct abort_client
*abt
;
1111 rb_dlink_node
*ptr
, *next
;
1112 RB_DLINK_FOREACH_SAFE(ptr
, next
, abort_list
.head
)
1116 #ifdef DEBUG_EXITED_CLIENTS
1118 if(rb_dlinkFind(abt
->client
, &dead_list
))
1121 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1122 "On dead_list: %s stat: %u flags: %u/%u handler: %c",
1123 abt
->client
->name
, (unsigned int) abt
->client
->status
,
1124 abt
->client
->flags
, abt
->client
->flags2
, abt
->client
->handler
);
1125 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1126 "Please report this to the charybdis developers!");
1132 s_assert(*((unsigned long*)abt
->client
) != 0xdeadbeef); /* This is lame but its a debug thing */
1133 rb_dlinkDelete(ptr
, &abort_list
);
1135 if(IsAnyServer(abt
->client
))
1136 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1137 "Closing link to %s: %s",
1138 abt
->client
->name
, abt
->notice
);
1140 /* its no longer on abort list - we *must* remove
1141 * FLAGS_CLOSING otherwise exit_client() will not run --fl
1143 abt
->client
->flags
&= ~FLAGS_CLOSING
;
1144 exit_client(abt
->client
, abt
->client
, &me
, abt
->notice
);
1151 * dead_link - Adds client to a list of clients that need an exit_client()
1155 dead_link(struct Client
*client_p
, int sendqex
)
1157 struct abort_client
*abt
;
1159 s_assert(!IsMe(client_p
));
1160 if(IsDead(client_p
) || IsClosing(client_p
) || IsMe(client_p
))
1163 abt
= (struct abort_client
*) rb_malloc(sizeof(struct abort_client
));
1166 rb_strlcpy(abt
->notice
, "Max SendQ exceeded", sizeof(abt
->notice
));
1168 rb_snprintf(abt
->notice
, sizeof(abt
->notice
), "Write error: %s", strerror(errno
));
1170 abt
->client
= client_p
;
1171 SetIOError(client_p
);
1173 SetClosing(client_p
);
1174 rb_dlinkAdd(abt
, &abt
->node
, &abort_list
);
1178 /* This does the remove of the user from channels..local or remote */
1180 exit_generic_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1181 const char *comment
)
1183 rb_dlink_node
*ptr
, *next_ptr
;
1185 if(IsOper(source_p
))
1186 rb_dlinkFindDestroy(source_p
, &oper_list
);
1188 sendto_common_channels_local(source_p
, NOCAPS
, ":%s!%s@%s QUIT :%s",
1190 source_p
->username
, source_p
->host
, comment
);
1192 remove_user_from_channels(source_p
);
1194 /* Should not be in any channels now */
1195 s_assert(source_p
->user
->channel
.head
== NULL
);
1197 /* Clean up invitefield */
1198 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, source_p
->user
->invited
.head
)
1200 del_invite(ptr
->data
, source_p
);
1203 /* Clean up allow lists */
1204 del_all_accepts(source_p
);
1206 add_history(source_p
, 0);
1207 off_history(source_p
);
1209 monitor_signoff(source_p
);
1211 if(has_id(source_p
))
1212 del_from_id_hash(source_p
->id
, source_p
);
1214 del_from_hostname_hash(source_p
->orighost
, source_p
);
1215 del_from_client_hash(source_p
->name
, source_p
);
1216 remove_client_from_list(source_p
);
1220 * Assumes IsPerson(source_p) && !MyConnect(source_p)
1224 exit_remote_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1225 const char *comment
)
1227 exit_generic_client(client_p
, source_p
, from
, comment
);
1229 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1231 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->users
);
1234 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1236 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1237 ":%s QUIT :%s", use_id(source_p
), comment
);
1241 #ifdef DEBUG_EXITED_CLIENTS
1242 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1244 rb_dlinkAddAlloc(source_p
, &dead_list
);
1246 return(CLIENT_EXITED
);
1250 * This assumes IsUnknown(source_p) == TRUE and MyConnect(source_p) == TRUE
1254 exit_unknown_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1255 const char *comment
)
1257 delete_auth_queries(source_p
);
1258 abort_blacklist_queries(source_p
);
1259 if (source_p
->localClient
->dnsquery
)
1261 delete_resolver_queries(source_p
->localClient
->dnsquery
);
1262 rb_free(source_p
->localClient
->dnsquery
);
1264 rb_dlinkDelete(&source_p
->localClient
->tnode
, &unknown_list
);
1266 if(!IsIOError(source_p
))
1267 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)",
1268 source_p
->user
!= NULL
? source_p
->host
: "127.0.0.1",
1271 close_connection(source_p
);
1273 if(has_id(source_p
))
1274 del_from_id_hash(source_p
->id
, source_p
);
1276 del_from_hostname_hash(source_p
->host
, source_p
);
1277 del_from_client_hash(source_p
->name
, source_p
);
1278 remove_client_from_list(source_p
);
1280 rb_dlinkAddAlloc(source_p
, &dead_list
);
1282 /* Note that we don't need to add unknowns to the dead_list */
1283 return(CLIENT_EXITED
);
1287 exit_remote_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1288 const char *comment
)
1290 static char comment1
[(HOSTLEN
*2)+2];
1291 static char newcomment
[BUFSIZE
];
1292 struct Client
*target_p
;
1294 if(ConfigServerHide
.flatten_links
)
1295 strcpy(comment1
, "*.net *.split");
1298 strcpy(comment1
, source_p
->servptr
->name
);
1299 strcat(comment1
, " ");
1300 strcat(comment1
, source_p
->name
);
1303 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1304 from
->name
, comment
);
1306 if(source_p
->serv
!= NULL
)
1307 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1309 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1310 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1314 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1315 target_p
= source_p
->from
;
1317 if(target_p
!= NULL
&& IsServer(target_p
) && target_p
!= client_p
&&
1318 !IsMe(target_p
) && (source_p
->flags
& FLAGS_KILLED
) == 0)
1320 sendto_one(target_p
, ":%s SQUIT %s :%s",
1321 get_id(from
, target_p
), get_id(source_p
, target_p
),
1325 if(has_id(source_p
))
1326 del_from_id_hash(source_p
->id
, source_p
);
1328 del_from_client_hash(source_p
->name
, source_p
);
1329 remove_client_from_list(source_p
);
1330 scache_split(source_p
->serv
->nameinfo
);
1333 #ifdef DEBUG_EXITED_CLIENTS
1334 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1336 rb_dlinkAddAlloc(source_p
, &dead_list
);
1342 qs_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1343 const char *comment
)
1345 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1346 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1350 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1352 if(has_id(source_p
))
1353 del_from_id_hash(source_p
->id
, source_p
);
1355 del_from_client_hash(source_p
->name
, source_p
);
1356 remove_client_from_list(source_p
);
1357 scache_split(source_p
->serv
->nameinfo
);
1360 rb_dlinkAddAlloc(source_p
, &dead_list
);
1365 exit_local_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1366 const char *comment
)
1368 static char comment1
[(HOSTLEN
*2)+2];
1369 static char newcomment
[BUFSIZE
];
1370 unsigned int sendk
, recvk
;
1372 rb_dlinkDelete(&source_p
->localClient
->tnode
, &serv_list
);
1373 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1375 sendk
= source_p
->localClient
->sendK
;
1376 recvk
= source_p
->localClient
->receiveK
;
1378 /* Always show source here, so the server notices show
1379 * which side initiated the split -- jilles
1381 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1382 from
== source_p
? me
.name
: from
->name
, comment
);
1383 if (!IsIOError(source_p
))
1384 sendto_one(source_p
, "SQUIT %s :%s", use_id(source_p
),
1386 if(client_p
!= NULL
&& source_p
!= client_p
&& !IsIOError(source_p
))
1388 sendto_one(source_p
, "ERROR :Closing Link: 127.0.0.1 %s (%s)",
1389 source_p
->name
, comment
);
1392 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1393 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1398 close_connection(source_p
);
1400 if(ConfigServerHide
.flatten_links
)
1401 strcpy(comment1
, "*.net *.split");
1404 strcpy(comment1
, source_p
->servptr
->name
);
1405 strcat(comment1
, " ");
1406 strcat(comment1
, source_p
->name
);
1409 if(source_p
->serv
!= NULL
)
1410 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1412 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "%s was connected"
1413 " for %ld seconds. %d/%d sendK/recvK.",
1414 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1416 ilog(L_SERVER
, "%s was connected for %ld seconds. %d/%d sendK/recvK.",
1417 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1419 if(has_id(source_p
))
1420 del_from_id_hash(source_p
->id
, source_p
);
1422 del_from_client_hash(source_p
->name
, source_p
);
1423 remove_client_from_list(source_p
);
1424 scache_split(source_p
->serv
->nameinfo
);
1427 rb_dlinkAddAlloc(source_p
, &dead_list
);
1433 * This assumes IsPerson(source_p) == TRUE && MyConnect(source_p) == TRUE
1437 exit_local_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1438 const char *comment
)
1440 unsigned long on_for
;
1443 exit_generic_client(client_p
, source_p
, from
, comment
);
1444 clear_monitor(source_p
);
1446 s_assert(IsPerson(source_p
));
1447 rb_dlinkDelete(&source_p
->localClient
->tnode
, &lclient_list
);
1448 rb_dlinkDelete(&source_p
->lnode
, &me
.serv
->users
);
1450 if(IsOper(source_p
))
1451 rb_dlinkFindDestroy(source_p
, &local_oper_list
);
1453 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
1454 "Client exiting: %s (%s@%s) [%s] [%s]",
1456 source_p
->username
, source_p
->host
, comment
,
1457 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255");
1459 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
1460 "CLIEXIT %s %s %s %s 0 %s",
1461 source_p
->name
, source_p
->username
, source_p
->host
,
1462 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255",
1465 on_for
= rb_current_time() - source_p
->localClient
->firsttime
;
1467 ilog(L_USER
, "%s (%3lu:%02lu:%02lu): %s!%s@%s %s %d/%d",
1468 rb_ctime(rb_current_time(), tbuf
, sizeof(tbuf
)), on_for
/ 3600,
1469 (on_for
% 3600) / 60, on_for
% 60,
1470 source_p
->name
, source_p
->username
, source_p
->host
,
1472 source_p
->localClient
->sendK
, source_p
->localClient
->receiveK
);
1474 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)", source_p
->host
, comment
);
1475 close_connection(source_p
);
1477 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1479 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1480 ":%s QUIT :%s", use_id(source_p
), comment
);
1484 rb_dlinkAddAlloc(source_p
, &dead_list
);
1485 return(CLIENT_EXITED
);
1490 ** exit_client - This is old "m_bye". Name changed, because this is not a
1491 ** protocol function, but a general server utility function.
1493 ** This function exits a client of *any* type (user, server, etc)
1494 ** from this server. Also, this generates all necessary prototol
1495 ** messages that this exit may cause.
1497 ** 1) If the client is a local client, then this implicitly
1498 ** exits all other clients depending on this connection (e.g.
1499 ** remote clients having 'from'-field that points to this.
1501 ** 2) If the client is a remote client, then only this is exited.
1503 ** For convenience, this function returns a suitable value for
1504 ** m_function return value:
1506 ** CLIENT_EXITED if (client_p == source_p)
1507 ** 0 if (client_p != source_p)
1510 exit_client(struct Client
*client_p
, /* The local client originating the
1511 * exit or NULL, if this exit is
1512 * generated by this server for
1514 * This will not get any of the
1515 * generated messages. */
1516 struct Client
*source_p
, /* Client exiting */
1517 struct Client
*from
, /* Client firing off this Exit,
1519 const char *comment
/* Reason for the exit */
1522 hook_data_client_exit hdata
;
1523 if(IsClosing(source_p
))
1526 /* note, this HAS to be here, when we exit a client we attempt to
1527 * send them data, if this generates a write error we must *not* add
1528 * them to the abort list --fl
1530 SetClosing(source_p
);
1532 hdata
.local_link
= client_p
;
1533 hdata
.target
= source_p
;
1535 hdata
.comment
= comment
;
1536 call_hook(h_client_exit
, &hdata
);
1538 if(MyConnect(source_p
))
1540 /* Local clients of various types */
1541 if(IsPerson(source_p
))
1542 return exit_local_client(client_p
, source_p
, from
, comment
);
1543 else if(IsServer(source_p
))
1544 return exit_local_server(client_p
, source_p
, from
, comment
);
1545 /* IsUnknown || IsConnecting || IsHandShake */
1546 else if(!IsReject(source_p
))
1547 return exit_unknown_client(client_p
, source_p
, from
, comment
);
1552 if(IsPerson(source_p
))
1553 return exit_remote_client(client_p
, source_p
, from
, comment
);
1554 else if(IsServer(source_p
))
1555 return exit_remote_server(client_p
, source_p
, from
, comment
);
1562 * Count up local client memory
1565 /* XXX one common Client list now */
1567 count_local_client_memory(size_t * count
, size_t * local_client_memory_used
)
1570 rb_bh_usage(lclient_heap
, count
, NULL
, &lusage
, NULL
);
1571 *local_client_memory_used
= lusage
+ (*count
* (sizeof(void *) + sizeof(struct Client
)));
1575 * Count up remote client memory
1578 count_remote_client_memory(size_t * count
, size_t * remote_client_memory_used
)
1580 size_t lcount
, rcount
;
1581 rb_bh_usage(lclient_heap
, &lcount
, NULL
, NULL
, NULL
);
1582 rb_bh_usage(client_heap
, &rcount
, NULL
, NULL
, NULL
);
1583 *count
= rcount
- lcount
;
1584 *remote_client_memory_used
= *count
* (sizeof(void *) + sizeof(struct Client
));
1589 * accept processing, this adds a form of "caller ID" to ircd
1591 * If a client puts themselves into "caller ID only" mode,
1592 * only clients that match a client pointer they have put on
1593 * the accept list will be allowed to message them.
1595 * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1597 * [target.allow_list] -> [ source1 ] -> [source2 ]
1599 * i.e. a target will have a link list of source pointers it will allow
1600 * each source client then has a back pointer pointing back
1601 * to the client that has it on its accept list.
1602 * This allows for exit_one_client to remove these now bogus entries
1603 * from any client having an accept on them.
1608 * inputs - pointer to exiting client
1610 * side effects - Walk through given clients allow_list and on_allow_list
1611 * remove all references to this client
1614 del_all_accepts(struct Client
*client_p
)
1617 rb_dlink_node
*next_ptr
;
1618 struct Client
*target_p
;
1620 if(MyClient(client_p
) && client_p
->localClient
->allow_list
.head
)
1622 /* clear this clients accept list, and remove them from
1623 * everyones on_accept_list
1625 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->localClient
->allow_list
.head
)
1627 target_p
= ptr
->data
;
1628 rb_dlinkFindDestroy(client_p
, &target_p
->on_allow_list
);
1629 rb_dlinkDestroy(ptr
, &client_p
->localClient
->allow_list
);
1633 /* remove this client from everyones accept list */
1634 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
1636 target_p
= ptr
->data
;
1637 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
1638 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
1643 * show_ip() - asks if the true IP should be shown when source is
1644 * asking for info about target
1646 * Inputs - source_p who is asking
1647 * - target_p who do we want the info on
1648 * Output - returns 1 if clear IP can be shown, otherwise 0
1649 * Side Effects - none
1653 show_ip(struct Client
*source_p
, struct Client
*target_p
)
1655 if(IsAnyServer(target_p
))
1659 else if(IsIPSpoof(target_p
))
1661 /* source == NULL indicates message is being sent
1664 if(!ConfigFileEntry
.hide_spoof_ips
&&
1665 (source_p
== NULL
|| MyOper(source_p
)))
1669 else if(IsDynSpoof(target_p
) && (source_p
!= NULL
&& !IsOper(source_p
)))
1676 show_ip_conf(struct ConfItem
*aconf
, struct Client
*source_p
)
1678 if(IsConfDoSpoofIp(aconf
))
1680 if(!ConfigFileEntry
.hide_spoof_ips
&& MyOper(source_p
))
1690 show_ip_whowas(struct Whowas
*whowas
, struct Client
*source_p
)
1692 if(whowas
->flags
& WHOWAS_IP_SPOOFING
)
1693 if(ConfigFileEntry
.hide_spoof_ips
|| !MyOper(source_p
))
1695 if(whowas
->flags
& WHOWAS_DYNSPOOF
)
1696 if(!IsOper(source_p
))
1704 * inputs - pointer to client struct
1705 * output - pointer to struct User
1706 * side effects - add's an User information block to a client
1707 * if it was not previously allocated.
1710 make_user(struct Client
*client_p
)
1714 user
= client_p
->user
;
1717 user
= (struct User
*) rb_bh_alloc(user_heap
);
1719 client_p
->user
= user
;
1727 * inputs - pointer to client struct
1728 * output - pointer to server_t
1729 * side effects - add's an Server information block to a client
1730 * if it was not previously allocated.
1733 make_server(struct Client
*client_p
)
1735 struct Server
*serv
= client_p
->serv
;
1739 serv
= (struct Server
*) rb_malloc(sizeof(struct Server
));
1740 client_p
->serv
= serv
;
1742 return client_p
->serv
;
1748 * inputs - pointer to user struct
1749 * - pointer to client struct
1751 * side effects - Decrease user reference count by one and release block,
1752 * if count reaches 0
1755 free_user(struct User
*user
, struct Client
*client_p
)
1757 free_away(client_p
);
1759 if(--user
->refcnt
<= 0)
1762 rb_free((char *) user
->away
);
1766 if(user
->refcnt
< 0 || user
->invited
.head
|| user
->channel
.head
)
1768 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1769 "* %#lx user (%s!%s@%s) %#lx %#lx %#lx %lu %d *",
1770 (unsigned long) client_p
,
1771 client_p
? client_p
->
1775 (unsigned long) user
,
1776 (unsigned long) user
->invited
.head
,
1777 (unsigned long) user
->channel
.head
,
1778 rb_dlink_list_length(&user
->channel
),
1780 s_assert(!user
->refcnt
);
1781 s_assert(!user
->invited
.head
);
1782 s_assert(!user
->channel
.head
);
1785 rb_bh_free(user_heap
, user
);
1790 allocate_away(struct Client
*client_p
)
1792 if(client_p
->user
->away
== NULL
)
1793 client_p
->user
->away
= rb_bh_alloc(away_heap
);
1798 free_away(struct Client
*client_p
)
1800 if(client_p
->user
!= NULL
&& client_p
->user
->away
!= NULL
) {
1801 rb_bh_free(away_heap
, client_p
->user
->away
);
1802 client_p
->user
->away
= NULL
;
1811 for(i
= 0; i
< 3; i
++)
1812 current_uid
[i
] = me
.id
[i
];
1814 for(i
= 3; i
< 9; i
++)
1815 current_uid
[i
] = 'A';
1817 current_uid
[9] = '\0';
1826 for(i
= 8; i
> 3; i
--)
1828 if(current_uid
[i
] == 'Z')
1830 current_uid
[i
] = '0';
1833 else if(current_uid
[i
] != '9')
1839 current_uid
[i
] = 'A';
1842 /* if this next if() triggers, we're fucked. */
1843 if(current_uid
[3] == 'Z')
1845 current_uid
[i
] = 'A';
1856 * Close the physical connection. This function must make
1857 * MyConnect(client_p) == FALSE, and set client_p->from == NULL.
1860 close_connection(struct Client
*client_p
)
1862 s_assert(client_p
!= NULL
);
1863 if(client_p
== NULL
)
1866 s_assert(MyConnect(client_p
));
1867 if(!MyConnect(client_p
))
1870 if(IsServer(client_p
))
1872 struct server_conf
*server_p
;
1874 ServerStats
.is_sv
++;
1875 ServerStats
.is_sbs
+= client_p
->localClient
->sendB
;
1876 ServerStats
.is_sbr
+= client_p
->localClient
->receiveB
;
1877 ServerStats
.is_sti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
1880 * If the connection has been up for a long amount of time, schedule
1881 * a 'quick' reconnect, else reset the next-connect cycle.
1883 if((server_p
= find_server_conf(client_p
->name
)) != NULL
)
1886 * Reschedule a faster reconnect, if this was a automatically
1887 * connected configuration entry. (Note that if we have had
1888 * a rehash in between, the status has been changed to
1889 * CONF_ILLEGAL). But only do this if it was a "good" link.
1891 server_p
->hold
= time(NULL
);
1893 (server_p
->hold
- client_p
->localClient
->lasttime
>
1894 HANGONGOODLINK
) ? HANGONRETRYDELAY
: ConFreq(server_p
->class);
1898 else if(IsClient(client_p
))
1900 ServerStats
.is_cl
++;
1901 ServerStats
.is_cbs
+= client_p
->localClient
->sendB
;
1902 ServerStats
.is_cbr
+= client_p
->localClient
->receiveB
;
1903 ServerStats
.is_cti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
1906 ServerStats
.is_ni
++;
1908 if(client_p
->localClient
->F
!= NULL
)
1910 /* attempt to flush any pending dbufs. Evil, but .. -- adrian */
1911 if(!IsIOError(client_p
))
1912 send_queued(client_p
);
1914 del_from_cli_fd_hash(client_p
);
1915 rb_close(client_p
->localClient
->F
);
1916 client_p
->localClient
->F
= NULL
;
1919 rb_linebuf_donebuf(&client_p
->localClient
->buf_sendq
);
1920 rb_linebuf_donebuf(&client_p
->localClient
->buf_recvq
);
1921 detach_conf(client_p
);
1923 /* XXX shouldnt really be done here. */
1924 detach_server_conf(client_p
);
1926 client_p
->from
= NULL
; /* ...this should catch them! >:) --msa */
1927 ClearMyConnect(client_p
);
1928 SetIOError(client_p
);
1934 error_exit_client(struct Client
*client_p
, int error
)
1937 * ...hmm, with non-blocking sockets we might get
1938 * here from quite valid reasons, although.. why
1939 * would select report "data available" when there
1940 * wasn't... so, this must be an error anyway... --msa
1941 * actually, EOF occurs when read() returns 0 and
1942 * in due course, select() returns that fd as ready
1943 * for reading even though it ends up being an EOF. -avalon
1946 int current_error
= rb_get_sockerr(client_p
->localClient
->F
);
1948 SetIOError(client_p
);
1950 if(IsServer(client_p
) || IsHandshake(client_p
))
1954 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
1955 "Server %s closed the connection",
1958 ilog(L_SERVER
, "Server %s closed the connection",
1959 log_client_name(client_p
, SHOW_IP
));
1963 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
1964 "Lost connection to %s: %s",
1965 client_p
->name
, strerror(current_error
));
1966 ilog(L_SERVER
, "Lost connection to %s: %s",
1967 log_client_name(client_p
, SHOW_IP
), strerror(current_error
));
1972 rb_strlcpy(errmsg
, "Remote host closed the connection", sizeof(errmsg
));
1974 rb_snprintf(errmsg
, sizeof(errmsg
), "Read error: %s", strerror(current_error
));
1976 exit_client(client_p
, client_p
, &me
, errmsg
);