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@255.255.255.255]",
933 target_p
->name
, target_p
->username
);
936 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
937 target_p
->username
, target_p
->host
);
943 return target_p
->name
;
946 /* is_remote_connect - Returns whether a server was /connect'ed by a remote
947 * oper (send notices netwide) */
949 is_remote_connect(struct Client
*client_p
)
953 if (client_p
->serv
== NULL
)
955 oper
= find_named_person(client_p
->serv
->by
);
956 return oper
!= NULL
&& IsOper(oper
) && !MyConnect(oper
);
960 free_exited_clients(void *unused
)
962 rb_dlink_node
*ptr
, *next
;
963 struct Client
*target_p
;
965 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_list
.head
)
967 target_p
= ptr
->data
;
969 #ifdef DEBUG_EXITED_CLIENTS
971 struct abort_client
*abt
;
975 RB_DLINK_FOREACH(aptr
, abort_list
.head
)
978 if(abt
->client
== target_p
)
981 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
982 "On abort_list: %s stat: %u flags: %u/%u handler: %c",
983 target_p
->name
, (unsigned int) target_p
->status
,
984 target_p
->flags
, target_p
->flags2
, target_p
->handler
);
985 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
986 "Please report this to the charybdis developers!");
993 rb_dlinkDestroy(ptr
, &dead_list
);
999 if(ptr
->data
== NULL
)
1001 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1002 "Warning: null client on dead_list!");
1003 rb_dlinkDestroy(ptr
, &dead_list
);
1006 release_client_state(target_p
);
1007 free_client(target_p
);
1008 rb_dlinkDestroy(ptr
, &dead_list
);
1011 #ifdef DEBUG_EXITED_CLIENTS
1012 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_remote_list
.head
)
1014 target_p
= ptr
->data
;
1016 if(ptr
->data
== NULL
)
1018 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1019 "Warning: null client on dead_list!");
1020 rb_dlinkDestroy(ptr
, &dead_list
);
1023 release_client_state(target_p
);
1024 free_client(target_p
);
1025 rb_dlinkDestroy(ptr
, &dead_remote_list
);
1032 ** Remove all clients that depend on source_p; assumes all (S)QUITs have
1033 ** already been sent. we make sure to exit a server's dependent clients
1034 ** and servers before the server itself; exit_one_client takes care of
1035 ** actually removing things off llists. tweaked from +CSr31 -orabidoo
1038 * added sanity test code.... source_p->serv might be NULL...
1041 recurse_remove_clients(struct Client
*source_p
, const char *comment
)
1043 struct Client
*target_p
;
1044 rb_dlink_node
*ptr
, *ptr_next
;
1049 if(source_p
->serv
== NULL
) /* oooops. uh this is actually a major bug */
1052 /* this is very ugly, but it saves cpu :P */
1053 if(ConfigFileEntry
.nick_delay
> 0)
1055 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1057 target_p
= ptr
->data
;
1058 target_p
->flags
|= FLAGS_KILLED
;
1059 add_nd_entry(target_p
->name
);
1061 if(!IsDead(target_p
) && !IsClosing(target_p
))
1062 exit_remote_client(NULL
, target_p
, &me
, comment
);
1067 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1069 target_p
= ptr
->data
;
1070 target_p
->flags
|= FLAGS_KILLED
;
1072 if(!IsDead(target_p
) && !IsClosing(target_p
))
1073 exit_remote_client(NULL
, target_p
, &me
, comment
);
1077 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1079 target_p
= ptr
->data
;
1080 recurse_remove_clients(target_p
, comment
);
1081 qs_server(NULL
, target_p
, &me
, comment
);
1086 ** Remove *everything* that depends on source_p, from all lists, and sending
1087 ** all necessary SQUITs. source_p itself is still on the lists,
1088 ** and its SQUITs have been sent except for the upstream one -orabidoo
1091 remove_dependents(struct Client
*client_p
,
1092 struct Client
*source_p
,
1093 struct Client
*from
, const char *comment
, const char *comment1
)
1096 rb_dlink_node
*ptr
, *next
;
1098 RB_DLINK_FOREACH_SAFE(ptr
, next
, serv_list
.head
)
1102 if(IsMe(to
) || to
== source_p
->from
|| to
== client_p
)
1105 sendto_one(to
, "SQUIT %s :%s", get_id(source_p
, to
), comment
);
1108 recurse_remove_clients(source_p
, comment1
);
1112 exit_aborted_clients(void *unused
)
1114 struct abort_client
*abt
;
1115 rb_dlink_node
*ptr
, *next
;
1116 RB_DLINK_FOREACH_SAFE(ptr
, next
, abort_list
.head
)
1120 #ifdef DEBUG_EXITED_CLIENTS
1122 if(rb_dlinkFind(abt
->client
, &dead_list
))
1125 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1126 "On dead_list: %s stat: %u flags: %u/%u handler: %c",
1127 abt
->client
->name
, (unsigned int) abt
->client
->status
,
1128 abt
->client
->flags
, abt
->client
->flags2
, abt
->client
->handler
);
1129 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1130 "Please report this to the charybdis developers!");
1136 s_assert(*((unsigned long*)abt
->client
) != 0xdeadbeef); /* This is lame but its a debug thing */
1137 rb_dlinkDelete(ptr
, &abort_list
);
1139 if(IsAnyServer(abt
->client
))
1140 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1141 "Closing link to %s: %s",
1142 abt
->client
->name
, abt
->notice
);
1144 /* its no longer on abort list - we *must* remove
1145 * FLAGS_CLOSING otherwise exit_client() will not run --fl
1147 abt
->client
->flags
&= ~FLAGS_CLOSING
;
1148 exit_client(abt
->client
, abt
->client
, &me
, abt
->notice
);
1155 * dead_link - Adds client to a list of clients that need an exit_client()
1159 dead_link(struct Client
*client_p
, int sendqex
)
1161 struct abort_client
*abt
;
1163 s_assert(!IsMe(client_p
));
1164 if(IsDead(client_p
) || IsClosing(client_p
) || IsMe(client_p
))
1167 abt
= (struct abort_client
*) rb_malloc(sizeof(struct abort_client
));
1170 rb_strlcpy(abt
->notice
, "Max SendQ exceeded", sizeof(abt
->notice
));
1172 rb_snprintf(abt
->notice
, sizeof(abt
->notice
), "Write error: %s", strerror(errno
));
1174 abt
->client
= client_p
;
1175 SetIOError(client_p
);
1177 SetClosing(client_p
);
1178 rb_dlinkAdd(abt
, &abt
->node
, &abort_list
);
1182 /* This does the remove of the user from channels..local or remote */
1184 exit_generic_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1185 const char *comment
)
1187 rb_dlink_node
*ptr
, *next_ptr
;
1189 if(IsOper(source_p
))
1190 rb_dlinkFindDestroy(source_p
, &oper_list
);
1192 sendto_common_channels_local(source_p
, NOCAPS
, ":%s!%s@%s QUIT :%s",
1194 source_p
->username
, source_p
->host
, comment
);
1196 remove_user_from_channels(source_p
);
1198 /* Should not be in any channels now */
1199 s_assert(source_p
->user
->channel
.head
== NULL
);
1201 /* Clean up invitefield */
1202 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, source_p
->user
->invited
.head
)
1204 del_invite(ptr
->data
, source_p
);
1207 /* Clean up allow lists */
1208 del_all_accepts(source_p
);
1210 add_history(source_p
, 0);
1211 off_history(source_p
);
1213 monitor_signoff(source_p
);
1215 if(has_id(source_p
))
1216 del_from_id_hash(source_p
->id
, source_p
);
1218 del_from_hostname_hash(source_p
->orighost
, source_p
);
1219 del_from_client_hash(source_p
->name
, source_p
);
1220 remove_client_from_list(source_p
);
1224 * Assumes IsPerson(source_p) && !MyConnect(source_p)
1228 exit_remote_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1229 const char *comment
)
1231 exit_generic_client(client_p
, source_p
, from
, comment
);
1233 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1235 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->users
);
1238 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1240 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1241 ":%s QUIT :%s", use_id(source_p
), comment
);
1245 #ifdef DEBUG_EXITED_CLIENTS
1246 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1248 rb_dlinkAddAlloc(source_p
, &dead_list
);
1250 return(CLIENT_EXITED
);
1254 * This assumes IsUnknown(source_p) == TRUE and MyConnect(source_p) == TRUE
1258 exit_unknown_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1259 const char *comment
)
1261 delete_auth_queries(source_p
);
1262 abort_blacklist_queries(source_p
);
1263 if (source_p
->localClient
->dnsquery
)
1265 delete_resolver_queries(source_p
->localClient
->dnsquery
);
1266 rb_free(source_p
->localClient
->dnsquery
);
1268 rb_dlinkDelete(&source_p
->localClient
->tnode
, &unknown_list
);
1270 if(!IsIOError(source_p
))
1271 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)",
1272 source_p
->user
!= NULL
? source_p
->host
: "127.0.0.1",
1275 close_connection(source_p
);
1277 if(has_id(source_p
))
1278 del_from_id_hash(source_p
->id
, source_p
);
1280 del_from_hostname_hash(source_p
->host
, source_p
);
1281 del_from_client_hash(source_p
->name
, source_p
);
1282 remove_client_from_list(source_p
);
1284 rb_dlinkAddAlloc(source_p
, &dead_list
);
1286 /* Note that we don't need to add unknowns to the dead_list */
1287 return(CLIENT_EXITED
);
1291 exit_remote_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1292 const char *comment
)
1294 static char comment1
[(HOSTLEN
*2)+2];
1295 static char newcomment
[BUFSIZE
];
1296 struct Client
*target_p
;
1298 if(ConfigServerHide
.flatten_links
)
1299 strcpy(comment1
, "*.net *.split");
1302 strcpy(comment1
, source_p
->servptr
->name
);
1303 strcat(comment1
, " ");
1304 strcat(comment1
, source_p
->name
);
1307 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1308 from
->name
, comment
);
1310 if(source_p
->serv
!= NULL
)
1311 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1313 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1314 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1318 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1319 target_p
= source_p
->from
;
1321 if(target_p
!= NULL
&& IsServer(target_p
) && target_p
!= client_p
&&
1322 !IsMe(target_p
) && (source_p
->flags
& FLAGS_KILLED
) == 0)
1324 sendto_one(target_p
, ":%s SQUIT %s :%s",
1325 get_id(from
, target_p
), get_id(source_p
, target_p
),
1329 if(has_id(source_p
))
1330 del_from_id_hash(source_p
->id
, source_p
);
1332 del_from_client_hash(source_p
->name
, source_p
);
1333 remove_client_from_list(source_p
);
1334 scache_split(source_p
->serv
->nameinfo
);
1337 #ifdef DEBUG_EXITED_CLIENTS
1338 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1340 rb_dlinkAddAlloc(source_p
, &dead_list
);
1346 qs_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1347 const char *comment
)
1349 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1350 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1354 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1356 if(has_id(source_p
))
1357 del_from_id_hash(source_p
->id
, source_p
);
1359 del_from_client_hash(source_p
->name
, source_p
);
1360 remove_client_from_list(source_p
);
1361 scache_split(source_p
->serv
->nameinfo
);
1364 rb_dlinkAddAlloc(source_p
, &dead_list
);
1369 exit_local_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1370 const char *comment
)
1372 static char comment1
[(HOSTLEN
*2)+2];
1373 static char newcomment
[BUFSIZE
];
1374 unsigned int sendk
, recvk
;
1376 rb_dlinkDelete(&source_p
->localClient
->tnode
, &serv_list
);
1377 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1379 sendk
= source_p
->localClient
->sendK
;
1380 recvk
= source_p
->localClient
->receiveK
;
1382 /* Always show source here, so the server notices show
1383 * which side initiated the split -- jilles
1385 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1386 from
== source_p
? me
.name
: from
->name
, comment
);
1387 if (!IsIOError(source_p
))
1388 sendto_one(source_p
, "SQUIT %s :%s", use_id(source_p
),
1390 if(client_p
!= NULL
&& source_p
!= client_p
&& !IsIOError(source_p
))
1392 sendto_one(source_p
, "ERROR :Closing Link: 127.0.0.1 %s (%s)",
1393 source_p
->name
, comment
);
1396 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1397 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1402 close_connection(source_p
);
1404 if(ConfigServerHide
.flatten_links
)
1405 strcpy(comment1
, "*.net *.split");
1408 strcpy(comment1
, source_p
->servptr
->name
);
1409 strcat(comment1
, " ");
1410 strcat(comment1
, source_p
->name
);
1413 if(source_p
->serv
!= NULL
)
1414 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1416 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "%s was connected"
1417 " for %ld seconds. %d/%d sendK/recvK.",
1418 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1420 ilog(L_SERVER
, "%s was connected for %ld seconds. %d/%d sendK/recvK.",
1421 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1423 if(has_id(source_p
))
1424 del_from_id_hash(source_p
->id
, source_p
);
1426 del_from_client_hash(source_p
->name
, source_p
);
1427 remove_client_from_list(source_p
);
1428 scache_split(source_p
->serv
->nameinfo
);
1431 rb_dlinkAddAlloc(source_p
, &dead_list
);
1437 * This assumes IsPerson(source_p) == TRUE && MyConnect(source_p) == TRUE
1441 exit_local_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1442 const char *comment
)
1444 unsigned long on_for
;
1447 exit_generic_client(client_p
, source_p
, from
, comment
);
1448 clear_monitor(source_p
);
1450 s_assert(IsPerson(source_p
));
1451 rb_dlinkDelete(&source_p
->localClient
->tnode
, &lclient_list
);
1452 rb_dlinkDelete(&source_p
->lnode
, &me
.serv
->users
);
1454 if(IsOper(source_p
))
1455 rb_dlinkFindDestroy(source_p
, &local_oper_list
);
1457 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
1458 "Client exiting: %s (%s@%s) [%s] [%s]",
1460 source_p
->username
, source_p
->host
, comment
,
1461 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255");
1463 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
1464 "CLIEXIT %s %s %s %s 0 %s",
1465 source_p
->name
, source_p
->username
, source_p
->host
,
1466 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255",
1469 on_for
= rb_current_time() - source_p
->localClient
->firsttime
;
1471 ilog(L_USER
, "%s (%3lu:%02lu:%02lu): %s!%s@%s %s %d/%d",
1472 rb_ctime(rb_current_time(), tbuf
, sizeof(tbuf
)), on_for
/ 3600,
1473 (on_for
% 3600) / 60, on_for
% 60,
1474 source_p
->name
, source_p
->username
, source_p
->host
,
1476 source_p
->localClient
->sendK
, source_p
->localClient
->receiveK
);
1478 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)", source_p
->host
, comment
);
1479 close_connection(source_p
);
1481 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1483 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1484 ":%s QUIT :%s", use_id(source_p
), comment
);
1488 rb_dlinkAddAlloc(source_p
, &dead_list
);
1489 return(CLIENT_EXITED
);
1494 ** exit_client - This is old "m_bye". Name changed, because this is not a
1495 ** protocol function, but a general server utility function.
1497 ** This function exits a client of *any* type (user, server, etc)
1498 ** from this server. Also, this generates all necessary prototol
1499 ** messages that this exit may cause.
1501 ** 1) If the client is a local client, then this implicitly
1502 ** exits all other clients depending on this connection (e.g.
1503 ** remote clients having 'from'-field that points to this.
1505 ** 2) If the client is a remote client, then only this is exited.
1507 ** For convenience, this function returns a suitable value for
1508 ** m_function return value:
1510 ** CLIENT_EXITED if (client_p == source_p)
1511 ** 0 if (client_p != source_p)
1514 exit_client(struct Client
*client_p
, /* The local client originating the
1515 * exit or NULL, if this exit is
1516 * generated by this server for
1518 * This will not get any of the
1519 * generated messages. */
1520 struct Client
*source_p
, /* Client exiting */
1521 struct Client
*from
, /* Client firing off this Exit,
1523 const char *comment
/* Reason for the exit */
1526 hook_data_client_exit hdata
;
1527 if(IsClosing(source_p
))
1530 /* note, this HAS to be here, when we exit a client we attempt to
1531 * send them data, if this generates a write error we must *not* add
1532 * them to the abort list --fl
1534 SetClosing(source_p
);
1536 hdata
.local_link
= client_p
;
1537 hdata
.target
= source_p
;
1539 hdata
.comment
= comment
;
1540 call_hook(h_client_exit
, &hdata
);
1542 if(MyConnect(source_p
))
1544 /* Local clients of various types */
1545 if(IsPerson(source_p
))
1546 return exit_local_client(client_p
, source_p
, from
, comment
);
1547 else if(IsServer(source_p
))
1548 return exit_local_server(client_p
, source_p
, from
, comment
);
1549 /* IsUnknown || IsConnecting || IsHandShake */
1550 else if(!IsReject(source_p
))
1551 return exit_unknown_client(client_p
, source_p
, from
, comment
);
1556 if(IsPerson(source_p
))
1557 return exit_remote_client(client_p
, source_p
, from
, comment
);
1558 else if(IsServer(source_p
))
1559 return exit_remote_server(client_p
, source_p
, from
, comment
);
1566 * Count up local client memory
1569 /* XXX one common Client list now */
1571 count_local_client_memory(size_t * count
, size_t * local_client_memory_used
)
1574 rb_bh_usage(lclient_heap
, count
, NULL
, &lusage
, NULL
);
1575 *local_client_memory_used
= lusage
+ (*count
* (sizeof(void *) + sizeof(struct Client
)));
1579 * Count up remote client memory
1582 count_remote_client_memory(size_t * count
, size_t * remote_client_memory_used
)
1584 size_t lcount
, rcount
;
1585 rb_bh_usage(lclient_heap
, &lcount
, NULL
, NULL
, NULL
);
1586 rb_bh_usage(client_heap
, &rcount
, NULL
, NULL
, NULL
);
1587 *count
= rcount
- lcount
;
1588 *remote_client_memory_used
= *count
* (sizeof(void *) + sizeof(struct Client
));
1593 * accept processing, this adds a form of "caller ID" to ircd
1595 * If a client puts themselves into "caller ID only" mode,
1596 * only clients that match a client pointer they have put on
1597 * the accept list will be allowed to message them.
1599 * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1601 * [target.allow_list] -> [ source1 ] -> [source2 ]
1603 * i.e. a target will have a link list of source pointers it will allow
1604 * each source client then has a back pointer pointing back
1605 * to the client that has it on its accept list.
1606 * This allows for exit_one_client to remove these now bogus entries
1607 * from any client having an accept on them.
1612 * inputs - pointer to exiting client
1614 * side effects - Walk through given clients allow_list and on_allow_list
1615 * remove all references to this client
1618 del_all_accepts(struct Client
*client_p
)
1621 rb_dlink_node
*next_ptr
;
1622 struct Client
*target_p
;
1624 if(MyClient(client_p
) && client_p
->localClient
->allow_list
.head
)
1626 /* clear this clients accept list, and remove them from
1627 * everyones on_accept_list
1629 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->localClient
->allow_list
.head
)
1631 target_p
= ptr
->data
;
1632 rb_dlinkFindDestroy(client_p
, &target_p
->on_allow_list
);
1633 rb_dlinkDestroy(ptr
, &client_p
->localClient
->allow_list
);
1637 /* remove this client from everyones accept list */
1638 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
1640 target_p
= ptr
->data
;
1641 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
1642 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
1647 * show_ip() - asks if the true IP should be shown when source is
1648 * asking for info about target
1650 * Inputs - source_p who is asking
1651 * - target_p who do we want the info on
1652 * Output - returns 1 if clear IP can be shown, otherwise 0
1653 * Side Effects - none
1657 show_ip(struct Client
*source_p
, struct Client
*target_p
)
1659 if(IsAnyServer(target_p
))
1663 else if(IsIPSpoof(target_p
))
1665 /* source == NULL indicates message is being sent
1668 if(!ConfigFileEntry
.hide_spoof_ips
&&
1669 (source_p
== NULL
|| MyOper(source_p
)))
1673 else if(IsDynSpoof(target_p
) && (source_p
!= NULL
&& !IsOper(source_p
)))
1680 show_ip_conf(struct ConfItem
*aconf
, struct Client
*source_p
)
1682 if(IsConfDoSpoofIp(aconf
))
1684 if(!ConfigFileEntry
.hide_spoof_ips
&& MyOper(source_p
))
1694 show_ip_whowas(struct Whowas
*whowas
, struct Client
*source_p
)
1696 if(whowas
->flags
& WHOWAS_IP_SPOOFING
)
1697 if(ConfigFileEntry
.hide_spoof_ips
|| !MyOper(source_p
))
1699 if(whowas
->flags
& WHOWAS_DYNSPOOF
)
1700 if(!IsOper(source_p
))
1708 * inputs - pointer to client struct
1709 * output - pointer to struct User
1710 * side effects - add's an User information block to a client
1711 * if it was not previously allocated.
1714 make_user(struct Client
*client_p
)
1718 user
= client_p
->user
;
1721 user
= (struct User
*) rb_bh_alloc(user_heap
);
1723 client_p
->user
= user
;
1731 * inputs - pointer to client struct
1732 * output - pointer to server_t
1733 * side effects - add's an Server information block to a client
1734 * if it was not previously allocated.
1737 make_server(struct Client
*client_p
)
1739 struct Server
*serv
= client_p
->serv
;
1743 serv
= (struct Server
*) rb_malloc(sizeof(struct Server
));
1744 client_p
->serv
= serv
;
1746 return client_p
->serv
;
1752 * inputs - pointer to user struct
1753 * - pointer to client struct
1755 * side effects - Decrease user reference count by one and release block,
1756 * if count reaches 0
1759 free_user(struct User
*user
, struct Client
*client_p
)
1761 free_away(client_p
);
1763 if(--user
->refcnt
<= 0)
1766 rb_free((char *) user
->away
);
1770 if(user
->refcnt
< 0 || user
->invited
.head
|| user
->channel
.head
)
1772 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1773 "* %#lx user (%s!%s@%s) %#lx %#lx %#lx %lu %d *",
1774 (unsigned long) client_p
,
1775 client_p
? client_p
->
1779 (unsigned long) user
,
1780 (unsigned long) user
->invited
.head
,
1781 (unsigned long) user
->channel
.head
,
1782 rb_dlink_list_length(&user
->channel
),
1784 s_assert(!user
->refcnt
);
1785 s_assert(!user
->invited
.head
);
1786 s_assert(!user
->channel
.head
);
1789 rb_bh_free(user_heap
, user
);
1794 allocate_away(struct Client
*client_p
)
1796 if(client_p
->user
->away
== NULL
)
1797 client_p
->user
->away
= rb_bh_alloc(away_heap
);
1802 free_away(struct Client
*client_p
)
1804 if(client_p
->user
!= NULL
&& client_p
->user
->away
!= NULL
) {
1805 rb_bh_free(away_heap
, client_p
->user
->away
);
1806 client_p
->user
->away
= NULL
;
1815 for(i
= 0; i
< 3; i
++)
1816 current_uid
[i
] = me
.id
[i
];
1818 for(i
= 3; i
< 9; i
++)
1819 current_uid
[i
] = 'A';
1821 current_uid
[9] = '\0';
1830 for(i
= 8; i
> 3; i
--)
1832 if(current_uid
[i
] == 'Z')
1834 current_uid
[i
] = '0';
1837 else if(current_uid
[i
] != '9')
1843 current_uid
[i
] = 'A';
1846 /* if this next if() triggers, we're fucked. */
1847 if(current_uid
[3] == 'Z')
1849 current_uid
[i
] = 'A';
1860 * Close the physical connection. This function must make
1861 * MyConnect(client_p) == FALSE, and set client_p->from == NULL.
1864 close_connection(struct Client
*client_p
)
1866 s_assert(client_p
!= NULL
);
1867 if(client_p
== NULL
)
1870 s_assert(MyConnect(client_p
));
1871 if(!MyConnect(client_p
))
1874 if(IsServer(client_p
))
1876 struct server_conf
*server_p
;
1878 ServerStats
.is_sv
++;
1879 ServerStats
.is_sbs
+= client_p
->localClient
->sendB
;
1880 ServerStats
.is_sbr
+= client_p
->localClient
->receiveB
;
1881 ServerStats
.is_sti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
1884 * If the connection has been up for a long amount of time, schedule
1885 * a 'quick' reconnect, else reset the next-connect cycle.
1887 if((server_p
= find_server_conf(client_p
->name
)) != NULL
)
1890 * Reschedule a faster reconnect, if this was a automatically
1891 * connected configuration entry. (Note that if we have had
1892 * a rehash in between, the status has been changed to
1893 * CONF_ILLEGAL). But only do this if it was a "good" link.
1895 server_p
->hold
= time(NULL
);
1897 (server_p
->hold
- client_p
->localClient
->lasttime
>
1898 HANGONGOODLINK
) ? HANGONRETRYDELAY
: ConFreq(server_p
->class);
1902 else if(IsClient(client_p
))
1904 ServerStats
.is_cl
++;
1905 ServerStats
.is_cbs
+= client_p
->localClient
->sendB
;
1906 ServerStats
.is_cbr
+= client_p
->localClient
->receiveB
;
1907 ServerStats
.is_cti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
1910 ServerStats
.is_ni
++;
1912 if(client_p
->localClient
->F
!= NULL
)
1914 /* attempt to flush any pending dbufs. Evil, but .. -- adrian */
1915 if(!IsIOError(client_p
))
1916 send_queued(client_p
);
1918 del_from_cli_fd_hash(client_p
);
1919 rb_close(client_p
->localClient
->F
);
1920 client_p
->localClient
->F
= NULL
;
1923 rb_linebuf_donebuf(&client_p
->localClient
->buf_sendq
);
1924 rb_linebuf_donebuf(&client_p
->localClient
->buf_recvq
);
1925 detach_conf(client_p
);
1927 /* XXX shouldnt really be done here. */
1928 detach_server_conf(client_p
);
1930 client_p
->from
= NULL
; /* ...this should catch them! >:) --msa */
1931 ClearMyConnect(client_p
);
1932 SetIOError(client_p
);
1938 error_exit_client(struct Client
*client_p
, int error
)
1941 * ...hmm, with non-blocking sockets we might get
1942 * here from quite valid reasons, although.. why
1943 * would select report "data available" when there
1944 * wasn't... so, this must be an error anyway... --msa
1945 * actually, EOF occurs when read() returns 0 and
1946 * in due course, select() returns that fd as ready
1947 * for reading even though it ends up being an EOF. -avalon
1950 int current_error
= rb_get_sockerr(client_p
->localClient
->F
);
1952 SetIOError(client_p
);
1954 if(IsServer(client_p
) || IsHandshake(client_p
))
1958 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
1959 "Server %s closed the connection",
1962 ilog(L_SERVER
, "Server %s closed the connection",
1963 log_client_name(client_p
, SHOW_IP
));
1967 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
1968 "Lost connection to %s: %s",
1969 client_p
->name
, strerror(current_error
));
1970 ilog(L_SERVER
, "Lost connection to %s: %s",
1971 log_client_name(client_p
, SHOW_IP
), strerror(current_error
));
1976 rb_strlcpy(errmsg
, "Remote host closed the connection", sizeof(errmsg
));
1978 rb_snprintf(errmsg
, sizeof(errmsg
), "Read error: %s", strerror(current_error
));
1980 exit_client(client_p
, client_p
, &me
, errmsg
);