2 * charybdis: an advanced ircd.
3 * client.c: Controls clients.
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2005 ircd-ratbox development team
8 * Copyright (C) 2007 William Pitcock
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
25 * $Id: client.c 3514 2007-06-06 16:25:21Z nenolod $
40 #include "s_newconf.h"
53 #include "blacklist.h"
56 #include "irc_dictionary.h"
59 #define DEBUG_EXITED_CLIENTS
61 static void check_pings_list(rb_dlink_list
* list
);
62 static void check_unknowns_list(rb_dlink_list
* list
);
63 static void free_exited_clients(void *unused
);
64 static void exit_aborted_clients(void *unused
);
66 static int exit_remote_client(struct Client
*, struct Client
*, struct Client
*,const char *);
67 static int exit_remote_server(struct Client
*, struct Client
*, struct Client
*,const char *);
68 static int exit_local_client(struct Client
*, struct Client
*, struct Client
*,const char *);
69 static int exit_unknown_client(struct Client
*, struct Client
*, struct Client
*,const char *);
70 static int exit_local_server(struct Client
*, struct Client
*, struct Client
*,const char *);
71 static int qs_server(struct Client
*, struct Client
*, struct Client
*, const char *comment
);
73 static EVH check_pings
;
75 static rb_bh
*client_heap
= NULL
;
76 static rb_bh
*lclient_heap
= NULL
;
77 static rb_bh
*pclient_heap
= NULL
;
78 static rb_bh
*user_heap
= NULL
;
79 static rb_bh
*away_heap
= NULL
;
80 static char current_uid
[IDLEN
];
82 struct Dictionary
*nd_dict
= NULL
;
90 rb_dlink_list dead_list
;
91 #ifdef DEBUG_EXITED_CLIENTS
92 static rb_dlink_list dead_remote_list
;
98 struct Client
*client
;
99 char notice
[REASONLEN
];
102 static rb_dlink_list abort_list
;
110 * side effects - initialize client free memory
116 * start off the check ping event .. -- adrian
117 * Every 30 seconds is plenty -- db
119 client_heap
= rb_bh_create(sizeof(struct Client
), CLIENT_HEAP_SIZE
, "client_heap");
120 lclient_heap
= rb_bh_create(sizeof(struct LocalUser
), LCLIENT_HEAP_SIZE
, "lclient_heap");
121 pclient_heap
= rb_bh_create(sizeof(struct PreClient
), PCLIENT_HEAP_SIZE
, "pclient_heap");
122 user_heap
= rb_bh_create(sizeof(struct User
), USER_HEAP_SIZE
, "user_heap");
123 away_heap
= rb_bh_create(AWAYLEN
, AWAY_HEAP_SIZE
, "away_heap");
125 rb_event_addish("check_pings", check_pings
, NULL
, 30);
126 rb_event_addish("free_exited_clients", &free_exited_clients
, NULL
, 4);
127 rb_event_addish("exit_aborted_clients", exit_aborted_clients
, NULL
, 1);
128 rb_event_add("flood_recalc", flood_recalc
, NULL
, 1);
130 nd_dict
= irc_dictionary_create(irccmp
);
135 * make_client - create a new Client struct and set it to initial state.
137 * from == NULL, create local client (a client connected
140 * from, create remote client (behind a socket
141 * associated with the client defined by
142 * 'from'). ('from' is a local client!!).
145 make_client(struct Client
*from
)
147 struct Client
*client_p
= NULL
;
148 struct LocalUser
*localClient
;
150 client_p
= rb_bh_alloc(client_heap
);
154 client_p
->from
= client_p
; /* 'from' of local client is self! */
156 localClient
= rb_bh_alloc(lclient_heap
);
157 SetMyConnect(client_p
);
158 client_p
->localClient
= localClient
;
160 client_p
->localClient
->lasttime
= client_p
->localClient
->firsttime
= rb_current_time();
162 client_p
->localClient
->F
= NULL
;
164 client_p
->preClient
= rb_bh_alloc(pclient_heap
);;
166 /* as good a place as any... */
167 rb_dlinkAdd(client_p
, &client_p
->localClient
->tnode
, &unknown_list
);
170 { /* from is not NULL */
171 client_p
->localClient
= NULL
;
172 client_p
->preClient
= NULL
;
173 client_p
->from
= from
; /* 'from' of local client is self! */
176 SetUnknown(client_p
);
177 strcpy(client_p
->username
, "unknown");
183 free_pre_client(struct Client
*client_p
)
185 struct Blacklist
*blptr
;
187 s_assert(NULL
!= client_p
);
189 if(client_p
->preClient
== NULL
)
192 blptr
= client_p
->preClient
->dnsbl_listed
;
194 unref_blacklist(blptr
);
195 abort_blacklist_queries(client_p
);
196 rb_bh_free(pclient_heap
, client_p
->preClient
);
197 client_p
->preClient
= NULL
;
201 free_local_client(struct Client
*client_p
)
203 s_assert(NULL
!= client_p
);
204 s_assert(&me
!= client_p
);
206 if(client_p
->localClient
== NULL
)
210 * clean up extra sockets from P-lines which have been discarded.
212 if(client_p
->localClient
->listener
)
214 s_assert(0 < client_p
->localClient
->listener
->ref_count
);
215 if(0 == --client_p
->localClient
->listener
->ref_count
216 && !client_p
->localClient
->listener
->active
)
217 free_listener(client_p
->localClient
->listener
);
218 client_p
->localClient
->listener
= 0;
221 if(client_p
->localClient
->F
!= NULL
)
223 del_from_cli_fd_hash(client_p
);
224 rb_close(client_p
->localClient
->F
);
227 if(client_p
->localClient
->passwd
)
229 memset(client_p
->localClient
->passwd
, 0,
230 strlen(client_p
->localClient
->passwd
));
231 rb_free(client_p
->localClient
->passwd
);
234 rb_free(client_p
->localClient
->auth_user
);
235 rb_free(client_p
->localClient
->challenge
);
236 rb_free(client_p
->localClient
->fullcaps
);
237 rb_free(client_p
->localClient
->opername
);
238 rb_free(client_p
->localClient
->mangledhost
);
239 if (client_p
->localClient
->privset
)
240 privilegeset_unref(client_p
->localClient
->privset
);
243 ssld_decrement_clicount(client_p
->localClient
->ssl_ctl
);
245 if(IsCapable(client_p
, CAP_ZIP
))
246 ssld_decrement_clicount(client_p
->localClient
->z_ctl
);
248 rb_bh_free(lclient_heap
, client_p
->localClient
);
249 client_p
->localClient
= NULL
;
253 free_client(struct Client
*client_p
)
255 s_assert(NULL
!= client_p
);
256 s_assert(&me
!= client_p
);
257 free_local_client(client_p
);
258 free_pre_client(client_p
);
259 rb_free(client_p
->certfp
);
260 rb_bh_free(client_heap
, client_p
);
264 * check_pings - go through the local client list and check activity
265 * kill off stuff that should die
267 * inputs - NOT USED (from event)
268 * output - next time_t when check_pings() should be called again
272 * A PING can be sent to clients as necessary.
274 * Client/Server ping outs are handled.
278 * Addon from adrian. We used to call this after nextping seconds,
279 * however I've changed it to run once a second. This is only for
280 * PING timeouts, not K/etc-line checks (thanks dianora!). Having it
281 * run once a second makes life a lot easier - when a new client connects
282 * and they need a ping in 4 seconds, if nextping was set to 20 seconds
283 * we end up waiting 20 seconds. This is stupid. :-)
284 * I will optimise (hah!) check_pings() once I've finished working on
285 * tidying up other network IO evilnesses.
290 check_pings(void *notused
)
292 check_pings_list(&lclient_list
);
293 check_pings_list(&serv_list
);
294 check_unknowns_list(&unknown_list
);
300 * inputs - pointer to list to check
305 check_pings_list(rb_dlink_list
* list
)
307 char scratch
[32]; /* way too generous but... */
308 struct Client
*client_p
; /* current local client_p being examined */
309 int ping
= 0; /* ping time value from client */
310 rb_dlink_node
*ptr
, *next_ptr
;
312 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
314 client_p
= ptr
->data
;
316 if(!MyConnect(client_p
) || IsDead(client_p
))
319 ping
= get_client_ping(client_p
);
321 if(ping
< (rb_current_time() - client_p
->localClient
->lasttime
))
324 * If the client/server hasnt talked to us in 2*ping seconds
325 * and it has a ping time, then close its connection.
327 if(((rb_current_time() - client_p
->localClient
->lasttime
) >= (2 * ping
)
328 && (client_p
->flags
& FLAGS_PINGSENT
)))
330 if(IsServer(client_p
))
332 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
333 "No response from %s, closing link",
336 "No response from %s, closing link",
337 log_client_name(client_p
, HIDE_IP
));
339 (void) rb_snprintf(scratch
, sizeof(scratch
),
340 "Ping timeout: %d seconds",
341 (int) (rb_current_time() - client_p
->localClient
->lasttime
));
343 exit_client(client_p
, client_p
, &me
, scratch
);
346 else if((client_p
->flags
& FLAGS_PINGSENT
) == 0)
349 * if we havent PINGed the connection and we havent
350 * heard from it in a while, PING it to make sure
353 client_p
->flags
|= FLAGS_PINGSENT
;
354 /* not nice but does the job */
355 client_p
->localClient
->lasttime
= rb_current_time() - ping
;
356 sendto_one(client_p
, "PING :%s", me
.name
);
365 * check_unknowns_list
367 * inputs - pointer to list of unknown clients
369 * side effects - unknown clients get marked for termination after n seconds
372 check_unknowns_list(rb_dlink_list
* list
)
374 rb_dlink_node
*ptr
, *next_ptr
;
375 struct Client
*client_p
;
378 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
380 client_p
= ptr
->data
;
382 if(IsDead(client_p
) || IsClosing(client_p
))
385 /* still has DNSbls to validate against */
386 if(client_p
->preClient
!= NULL
&&
387 rb_dlink_list_length(&client_p
->preClient
->dnsbl_queries
) > 0)
391 * Check UNKNOWN connections - if they have been in this state
392 * for > 30s, close them.
395 timeout
= IsAnyServer(client_p
) ? ConfigFileEntry
.connect_timeout
: 30;
396 if((rb_current_time() - client_p
->localClient
->firsttime
) > timeout
)
398 if(IsAnyServer(client_p
))
400 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
401 "No response from %s, closing link",
404 "No response from %s, closing link",
405 log_client_name(client_p
, HIDE_IP
));
407 exit_client(client_p
, client_p
, &me
, "Connection timed out");
413 notify_banned_client(struct Client
*client_p
, struct ConfItem
*aconf
, int ban
)
415 static const char conn_closed
[] = "Connection closed";
416 static const char d_lined
[] = "D-lined";
417 static const char k_lined
[] = "K-lined";
418 const char *reason
= NULL
;
419 const char *exit_reason
= conn_closed
;
421 if(ConfigFileEntry
.kline_with_reason
)
423 reason
= get_user_ban_reason(aconf
);
424 exit_reason
= reason
;
428 reason
= aconf
->status
== D_LINED
? d_lined
: k_lined
;
431 if(ban
== D_LINED
&& !IsPerson(client_p
))
432 sendto_one(client_p
, "NOTICE DLINE :*** You have been D-lined");
434 sendto_one(client_p
, form_str(ERR_YOUREBANNEDCREEP
),
435 me
.name
, client_p
->name
, reason
);
437 exit_client(client_p
, client_p
, &me
,
438 EmptyString(ConfigFileEntry
.kline_reason
) ? exit_reason
:
439 ConfigFileEntry
.kline_reason
);
446 * side effects - Check all connections for a pending k/dline against the
447 * client, exit the client if found.
450 check_banned_lines(void)
457 /* check_klines_event()
461 * side effects - check_klines() is called, kline_queued unset
464 check_klines_event(void *unused
)
474 * side effects - all clients will be checked for klines
479 struct Client
*client_p
;
480 struct ConfItem
*aconf
;
482 rb_dlink_node
*next_ptr
;
484 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
486 client_p
= ptr
->data
;
488 if(IsMe(client_p
) || !IsPerson(client_p
))
491 if((aconf
= find_kline(client_p
)) != NULL
)
493 if(IsExemptKline(client_p
))
495 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
496 "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
497 get_client_name(client_p
, HIDE_IP
),
498 aconf
->user
, aconf
->host
);
502 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
503 "KLINE active for %s",
504 get_client_name(client_p
, HIDE_IP
));
506 notify_banned_client(client_p
, aconf
, K_LINED
);
516 * side effects - all clients will be checked for dlines
521 struct Client
*client_p
;
522 struct ConfItem
*aconf
;
524 rb_dlink_node
*next_ptr
;
526 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
528 client_p
= ptr
->data
;
533 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
535 if(aconf
->status
& CONF_EXEMPTDLINE
)
538 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
539 "DLINE active for %s",
540 get_client_name(client_p
, HIDE_IP
));
542 notify_banned_client(client_p
, aconf
, D_LINED
);
547 /* dlines need to be checked against unknowns too */
548 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
550 client_p
= ptr
->data
;
552 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
554 if(aconf
->status
& CONF_EXEMPTDLINE
)
557 notify_banned_client(client_p
, aconf
, D_LINED
);
566 * side effects - all clients will be checked for xlines
571 struct Client
*client_p
;
572 struct ConfItem
*aconf
;
574 rb_dlink_node
*next_ptr
;
576 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
578 client_p
= ptr
->data
;
580 if(IsMe(client_p
) || !IsPerson(client_p
))
583 if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
585 if(IsExemptKline(client_p
))
587 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
588 "XLINE over-ruled for %s, client is kline_exempt [%s]",
589 get_client_name(client_p
, HIDE_IP
),
594 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
595 get_client_name(client_p
, HIDE_IP
));
597 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
604 * update_client_exit_stats
606 * input - pointer to client
611 update_client_exit_stats(struct Client
*client_p
)
613 if(IsServer(client_p
))
615 sendto_realops_snomask(SNO_EXTERNAL
, L_ALL
,
616 "Server %s split from %s",
617 client_p
->name
, client_p
->servptr
->name
);
618 if(HasSentEob(client_p
))
621 else if(IsClient(client_p
))
626 if(IsInvisible(client_p
))
630 if(splitchecking
&& !splitmode
)
631 check_splitmode(NULL
);
635 * release_client_state
637 * input - pointer to client to release
642 release_client_state(struct Client
*client_p
)
644 if(client_p
->user
!= NULL
)
646 free_user(client_p
->user
, client_p
); /* try this here */
650 if(client_p
->serv
->user
!= NULL
)
651 free_user(client_p
->serv
->user
, client_p
);
652 if(client_p
->serv
->fullcaps
)
653 rb_free(client_p
->serv
->fullcaps
);
654 rb_free(client_p
->serv
);
659 * remove_client_from_list
660 * inputs - point to client to remove
662 * side effects - taken the code from ExitOneClient() for this
663 * and placed it here. - avalon
666 remove_client_from_list(struct Client
*client_p
)
668 s_assert(NULL
!= client_p
);
673 /* A client made with make_client()
674 * is on the unknown_list until removed.
675 * If it =does= happen to exit before its removed from that list
676 * and its =not= on the global_client_list, it will core here.
677 * short circuit that case now -db
679 if(client_p
->node
.prev
== NULL
&& client_p
->node
.next
== NULL
)
682 rb_dlinkDelete(&client_p
->node
, &global_client_list
);
684 update_client_exit_stats(client_p
);
689 * find_person - find person by (nick)name.
690 * inputs - pointer to name
691 * output - return client pointer
695 find_person(const char *name
)
697 struct Client
*c2ptr
;
699 c2ptr
= find_client(name
);
701 if(c2ptr
&& IsPerson(c2ptr
))
707 find_named_person(const char *name
)
709 struct Client
*c2ptr
;
711 c2ptr
= find_named_client(name
);
713 if(c2ptr
&& IsPerson(c2ptr
))
720 * find_chasing - find the client structure for a nick name (user)
721 * using history mechanism if necessary. If the client is not found,
722 * an error message (NO SUCH NICK) is generated. If the client was found
723 * through the history, chasing will be 1 and otherwise 0.
726 find_chasing(struct Client
*source_p
, const char *user
, int *chasing
)
730 if(MyClient(source_p
))
731 who
= find_named_person(user
);
733 who
= find_person(user
);
738 if(who
|| IsDigit(*user
))
741 if(!(who
= get_history(user
, (long) KILLCHASETIMELIMIT
)))
743 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
744 form_str(ERR_NOSUCHNICK
), user
);
753 * get_client_name - Return the name of the client
754 * for various tracking and
755 * admin purposes. The main purpose of this function is to
756 * return the "socket host" name of the client, if that
757 * differs from the advertised name (other than case).
758 * But, this can be used to any client structure.
761 * Watch out the allocation of "nbuf", if either source_p->name
762 * or source_p->sockhost gets changed into pointers instead of
763 * directly allocated within the structure...
766 * Function return either a pointer to the structure (source_p) or
767 * to internal buffer (nbuf). *NEVER* use the returned pointer
768 * to modify what it points!!!
772 get_client_name(struct Client
*client
, int showip
)
774 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
776 s_assert(NULL
!= client
);
780 if(MyConnect(client
))
782 if(!irccmp(client
->name
, client
->host
))
785 if(ConfigFileEntry
.hide_spoof_ips
&&
786 showip
== SHOW_IP
&& IsIPSpoof(client
))
788 if(IsAnyServer(client
))
791 /* And finally, let's get the host information, ip or name */
795 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
796 client
->name
, client
->username
,
800 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
801 client
->name
, client
->username
);
804 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
805 client
->name
, client
->username
, client
->host
);
810 /* As pointed out by Adel Mezibra
811 * Neph|l|m@EFnet. Was missing a return here.
818 * This version is the same as get_client_name, but doesnt contain the
819 * code that will hide IPs always. This should be used for logfiles.
822 log_client_name(struct Client
*target_p
, int showip
)
824 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
829 if(MyConnect(target_p
))
831 if(irccmp(target_p
->name
, target_p
->host
) == 0)
832 return target_p
->name
;
837 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
838 target_p
->username
, target_p
->sockhost
);
842 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
843 target_p
->name
, target_p
->username
);
846 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
847 target_p
->username
, target_p
->host
);
853 return target_p
->name
;
856 /* is_remote_connect - Returns whether a server was /connect'ed by a remote
857 * oper (send notices netwide) */
859 is_remote_connect(struct Client
*client_p
)
863 if (client_p
->serv
== NULL
)
865 oper
= find_named_person(client_p
->serv
->by
);
866 return oper
!= NULL
&& IsOper(oper
) && !MyConnect(oper
);
870 free_exited_clients(void *unused
)
872 rb_dlink_node
*ptr
, *next
;
873 struct Client
*target_p
;
875 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_list
.head
)
877 target_p
= ptr
->data
;
879 #ifdef DEBUG_EXITED_CLIENTS
881 struct abort_client
*abt
;
885 RB_DLINK_FOREACH(aptr
, abort_list
.head
)
888 if(abt
->client
== target_p
)
891 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
892 "On abort_list: %s stat: %u flags: %u/%u handler: %c",
893 target_p
->name
, (unsigned int) target_p
->status
,
894 target_p
->flags
, target_p
->flags2
, target_p
->handler
);
895 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
896 "Please report this to the charybdis developers!");
903 rb_dlinkDestroy(ptr
, &dead_list
);
909 if(ptr
->data
== NULL
)
911 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
912 "Warning: null client on dead_list!");
913 rb_dlinkDestroy(ptr
, &dead_list
);
916 release_client_state(target_p
);
917 free_client(target_p
);
918 rb_dlinkDestroy(ptr
, &dead_list
);
921 #ifdef DEBUG_EXITED_CLIENTS
922 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_remote_list
.head
)
924 target_p
= ptr
->data
;
926 if(ptr
->data
== NULL
)
928 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
929 "Warning: null client on dead_list!");
930 rb_dlinkDestroy(ptr
, &dead_list
);
933 release_client_state(target_p
);
934 free_client(target_p
);
935 rb_dlinkDestroy(ptr
, &dead_remote_list
);
942 ** Recursively send QUITs and SQUITs for source_p and all its dependent clients
943 ** and servers to those servers that need them. A server needs the client
944 ** QUITs if it can't figure them out from the SQUIT (ie pre-TS4) or if it
945 ** isn't getting the SQUIT because of @#(*&@)# hostmasking. With TS4, once
946 ** a link gets a SQUIT, it doesn't need any QUIT/SQUITs for clients depending
947 ** on that one -orabidoo
950 recurse_send_quits(struct Client
*client_p
, struct Client
*source_p
,
951 struct Client
*to
, const char *comment1
,
954 struct Client
*target_p
;
955 rb_dlink_node
*ptr
, *ptr_next
;
956 /* If this server can handle quit storm (QS) removal
957 * of dependents, just send the SQUIT
960 if(IsCapable(to
, CAP_QS
))
962 sendto_one(to
, "SQUIT %s :%s",
963 get_id(source_p
, to
), comment
);
967 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
969 target_p
= ptr
->data
;
970 sendto_one(to
, ":%s QUIT :%s", target_p
->name
, comment1
);
972 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
974 target_p
= ptr
->data
;
975 recurse_send_quits(client_p
, target_p
, to
, comment1
, comment
);
977 sendto_one(to
, "SQUIT %s :%s", source_p
->name
, comment
);
982 ** Remove all clients that depend on source_p; assumes all (S)QUITs have
983 ** already been sent. we make sure to exit a server's dependent clients
984 ** and servers before the server itself; exit_one_client takes care of
985 ** actually removing things off llists. tweaked from +CSr31 -orabidoo
988 * added sanity test code.... source_p->serv might be NULL...
991 recurse_remove_clients(struct Client
*source_p
, const char *comment
)
993 struct Client
*target_p
;
994 rb_dlink_node
*ptr
, *ptr_next
;
999 if(source_p
->serv
== NULL
) /* oooops. uh this is actually a major bug */
1002 /* this is very ugly, but it saves cpu :P */
1003 if(ConfigFileEntry
.nick_delay
> 0)
1005 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1007 target_p
= ptr
->data
;
1008 target_p
->flags
|= FLAGS_KILLED
;
1009 add_nd_entry(target_p
->name
);
1011 if(!IsDead(target_p
) && !IsClosing(target_p
))
1012 exit_remote_client(NULL
, target_p
, &me
, comment
);
1017 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1019 target_p
= ptr
->data
;
1020 target_p
->flags
|= FLAGS_KILLED
;
1022 if(!IsDead(target_p
) && !IsClosing(target_p
))
1023 exit_remote_client(NULL
, target_p
, &me
, comment
);
1027 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1029 target_p
= ptr
->data
;
1030 recurse_remove_clients(target_p
, comment
);
1031 qs_server(NULL
, target_p
, &me
, comment
);
1036 ** Remove *everything* that depends on source_p, from all lists, and sending
1037 ** all necessary QUITs and SQUITs. source_p itself is still on the lists,
1038 ** and its SQUITs have been sent except for the upstream one -orabidoo
1041 remove_dependents(struct Client
*client_p
,
1042 struct Client
*source_p
,
1043 struct Client
*from
, const char *comment
, const char *comment1
)
1046 rb_dlink_node
*ptr
, *next
;
1048 RB_DLINK_FOREACH_SAFE(ptr
, next
, serv_list
.head
)
1052 if(IsMe(to
) || to
== source_p
->from
||
1053 (to
== client_p
&& IsCapable(to
, CAP_QS
)))
1056 recurse_send_quits(client_p
, source_p
, to
, comment1
, comment
);
1059 recurse_remove_clients(source_p
, comment1
);
1063 exit_aborted_clients(void *unused
)
1065 struct abort_client
*abt
;
1066 rb_dlink_node
*ptr
, *next
;
1067 RB_DLINK_FOREACH_SAFE(ptr
, next
, abort_list
.head
)
1071 #ifdef DEBUG_EXITED_CLIENTS
1073 if(rb_dlinkFind(abt
->client
, &dead_list
))
1076 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1077 "On dead_list: %s stat: %u flags: %u/%u handler: %c",
1078 abt
->client
->name
, (unsigned int) abt
->client
->status
,
1079 abt
->client
->flags
, abt
->client
->flags2
, abt
->client
->handler
);
1080 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1081 "Please report this to the charybdis developers!");
1087 s_assert(*((unsigned long*)abt
->client
) != 0xdeadbeef); /* This is lame but its a debug thing */
1088 rb_dlinkDelete(ptr
, &abort_list
);
1090 if(IsAnyServer(abt
->client
))
1091 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1092 "Closing link to %s: %s",
1093 abt
->client
->name
, abt
->notice
);
1095 /* its no longer on abort list - we *must* remove
1096 * FLAGS_CLOSING otherwise exit_client() will not run --fl
1098 abt
->client
->flags
&= ~FLAGS_CLOSING
;
1099 exit_client(abt
->client
, abt
->client
, &me
, abt
->notice
);
1106 * dead_link - Adds client to a list of clients that need an exit_client()
1110 dead_link(struct Client
*client_p
, int sendqex
)
1112 struct abort_client
*abt
;
1114 s_assert(!IsMe(client_p
));
1115 if(IsDead(client_p
) || IsClosing(client_p
) || IsMe(client_p
))
1118 abt
= (struct abort_client
*) rb_malloc(sizeof(struct abort_client
));
1121 rb_strlcpy(abt
->notice
, "Max SendQ exceeded", sizeof(abt
->notice
));
1123 rb_snprintf(abt
->notice
, sizeof(abt
->notice
), "Write error: %s", strerror(errno
));
1125 abt
->client
= client_p
;
1126 SetIOError(client_p
);
1128 SetClosing(client_p
);
1129 rb_dlinkAdd(abt
, &abt
->node
, &abort_list
);
1133 /* This does the remove of the user from channels..local or remote */
1135 exit_generic_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1136 const char *comment
)
1138 rb_dlink_node
*ptr
, *next_ptr
;
1140 if(IsOper(source_p
))
1141 rb_dlinkFindDestroy(source_p
, &oper_list
);
1143 sendto_common_channels_local(source_p
, NOCAPS
, ":%s!%s@%s QUIT :%s",
1145 source_p
->username
, source_p
->host
, comment
);
1147 remove_user_from_channels(source_p
);
1149 /* Should not be in any channels now */
1150 s_assert(source_p
->user
->channel
.head
== NULL
);
1152 /* Clean up invitefield */
1153 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, source_p
->user
->invited
.head
)
1155 del_invite(ptr
->data
, source_p
);
1158 /* Clean up allow lists */
1159 del_all_accepts(source_p
);
1161 add_history(source_p
, 0);
1162 off_history(source_p
);
1164 monitor_signoff(source_p
);
1166 if(has_id(source_p
))
1167 del_from_id_hash(source_p
->id
, source_p
);
1169 del_from_hostname_hash(source_p
->orighost
, source_p
);
1170 del_from_client_hash(source_p
->name
, source_p
);
1171 remove_client_from_list(source_p
);
1175 * Assumes IsPerson(source_p) && !MyConnect(source_p)
1179 exit_remote_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1180 const char *comment
)
1182 exit_generic_client(client_p
, source_p
, from
, comment
);
1184 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1186 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->users
);
1189 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1191 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1192 ":%s QUIT :%s", use_id(source_p
), comment
);
1196 #ifdef DEBUG_EXITED_CLIENTS
1197 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1199 rb_dlinkAddAlloc(source_p
, &dead_list
);
1201 return(CLIENT_EXITED
);
1205 * This assumes IsUnknown(source_p) == TRUE and MyConnect(source_p) == TRUE
1209 exit_unknown_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1210 const char *comment
)
1212 delete_auth_queries(source_p
);
1213 if (source_p
->localClient
->dnsquery
)
1215 delete_resolver_queries(source_p
->localClient
->dnsquery
);
1216 rb_free(source_p
->localClient
->dnsquery
);
1218 rb_dlinkDelete(&source_p
->localClient
->tnode
, &unknown_list
);
1220 if(!IsIOError(source_p
))
1221 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)",
1222 source_p
->user
!= NULL
? source_p
->host
: "127.0.0.1",
1225 close_connection(source_p
);
1227 if(has_id(source_p
))
1228 del_from_id_hash(source_p
->id
, source_p
);
1230 del_from_hostname_hash(source_p
->host
, source_p
);
1231 del_from_client_hash(source_p
->name
, source_p
);
1232 remove_client_from_list(source_p
);
1234 rb_dlinkAddAlloc(source_p
, &dead_list
);
1236 /* Note that we don't need to add unknowns to the dead_list */
1237 return(CLIENT_EXITED
);
1241 exit_remote_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1242 const char *comment
)
1244 static char comment1
[(HOSTLEN
*2)+2];
1245 static char newcomment
[BUFSIZE
];
1246 struct Client
*target_p
;
1248 if(ConfigServerHide
.flatten_links
)
1249 strcpy(comment1
, "*.net *.split");
1252 strcpy(comment1
, source_p
->servptr
->name
);
1253 strcat(comment1
, " ");
1254 strcat(comment1
, source_p
->name
);
1257 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1258 from
->name
, comment
);
1260 if(source_p
->serv
!= NULL
)
1261 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1263 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1264 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1268 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1269 target_p
= source_p
->from
;
1271 if(target_p
!= NULL
&& IsServer(target_p
) && target_p
!= client_p
&&
1272 !IsMe(target_p
) && (source_p
->flags
& FLAGS_KILLED
) == 0)
1274 sendto_one(target_p
, ":%s SQUIT %s :%s",
1275 get_id(from
, target_p
), get_id(source_p
, target_p
),
1279 if(has_id(source_p
))
1280 del_from_id_hash(source_p
->id
, source_p
);
1282 del_from_client_hash(source_p
->name
, source_p
);
1283 remove_client_from_list(source_p
);
1284 scache_split(source_p
->serv
->nameinfo
);
1287 #ifdef DEBUG_EXITED_CLIENTS
1288 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1290 rb_dlinkAddAlloc(source_p
, &dead_list
);
1296 qs_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1297 const char *comment
)
1299 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1300 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1304 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1306 if(has_id(source_p
))
1307 del_from_id_hash(source_p
->id
, source_p
);
1309 del_from_client_hash(source_p
->name
, source_p
);
1310 remove_client_from_list(source_p
);
1311 scache_split(source_p
->serv
->nameinfo
);
1314 rb_dlinkAddAlloc(source_p
, &dead_list
);
1319 exit_local_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1320 const char *comment
)
1322 static char comment1
[(HOSTLEN
*2)+2];
1323 static char newcomment
[BUFSIZE
];
1324 unsigned int sendk
, recvk
;
1326 rb_dlinkDelete(&source_p
->localClient
->tnode
, &serv_list
);
1327 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1329 sendk
= source_p
->localClient
->sendK
;
1330 recvk
= source_p
->localClient
->receiveK
;
1332 /* Always show source here, so the server notices show
1333 * which side initiated the split -- jilles
1335 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1336 from
== source_p
? me
.name
: from
->name
, comment
);
1337 if (!IsIOError(source_p
))
1338 sendto_one(source_p
, "SQUIT %s :%s", use_id(source_p
),
1340 if(client_p
!= NULL
&& source_p
!= client_p
&& !IsIOError(source_p
))
1342 sendto_one(source_p
, "ERROR :Closing Link: 127.0.0.1 %s (%s)",
1343 source_p
->name
, comment
);
1346 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1347 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1352 close_connection(source_p
);
1354 if(ConfigServerHide
.flatten_links
)
1355 strcpy(comment1
, "*.net *.split");
1358 strcpy(comment1
, source_p
->servptr
->name
);
1359 strcat(comment1
, " ");
1360 strcat(comment1
, source_p
->name
);
1363 if(source_p
->serv
!= NULL
)
1364 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1366 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "%s was connected"
1367 " for %ld seconds. %d/%d sendK/recvK.",
1368 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1370 ilog(L_SERVER
, "%s was connected for %ld seconds. %d/%d sendK/recvK.",
1371 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1373 if(has_id(source_p
))
1374 del_from_id_hash(source_p
->id
, source_p
);
1376 del_from_client_hash(source_p
->name
, source_p
);
1377 remove_client_from_list(source_p
);
1378 scache_split(source_p
->serv
->nameinfo
);
1381 rb_dlinkAddAlloc(source_p
, &dead_list
);
1387 * This assumes IsPerson(source_p) == TRUE && MyConnect(source_p) == TRUE
1391 exit_local_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1392 const char *comment
)
1394 unsigned long on_for
;
1397 exit_generic_client(client_p
, source_p
, from
, comment
);
1398 clear_monitor(source_p
);
1400 s_assert(IsPerson(source_p
));
1401 rb_dlinkDelete(&source_p
->localClient
->tnode
, &lclient_list
);
1402 rb_dlinkDelete(&source_p
->lnode
, &me
.serv
->users
);
1404 if(IsOper(source_p
))
1405 rb_dlinkFindDestroy(source_p
, &local_oper_list
);
1407 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
1408 "Client exiting: %s (%s@%s) [%s] [%s]",
1410 source_p
->username
, source_p
->host
, comment
,
1411 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255");
1413 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
1414 "CLIEXIT %s %s %s %s 0 %s",
1415 source_p
->name
, source_p
->username
, source_p
->host
,
1416 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255",
1419 on_for
= rb_current_time() - source_p
->localClient
->firsttime
;
1421 ilog(L_USER
, "%s (%3lu:%02lu:%02lu): %s!%s@%s %s %d/%d",
1422 rb_ctime(rb_current_time(), tbuf
, sizeof(tbuf
)), on_for
/ 3600,
1423 (on_for
% 3600) / 60, on_for
% 60,
1424 source_p
->name
, source_p
->username
, source_p
->host
,
1426 source_p
->localClient
->sendK
, source_p
->localClient
->receiveK
);
1428 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)", source_p
->host
, comment
);
1429 close_connection(source_p
);
1431 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1433 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1434 ":%s QUIT :%s", use_id(source_p
), comment
);
1438 rb_dlinkAddAlloc(source_p
, &dead_list
);
1439 return(CLIENT_EXITED
);
1444 ** exit_client - This is old "m_bye". Name changed, because this is not a
1445 ** protocol function, but a general server utility function.
1447 ** This function exits a client of *any* type (user, server, etc)
1448 ** from this server. Also, this generates all necessary prototol
1449 ** messages that this exit may cause.
1451 ** 1) If the client is a local client, then this implicitly
1452 ** exits all other clients depending on this connection (e.g.
1453 ** remote clients having 'from'-field that points to this.
1455 ** 2) If the client is a remote client, then only this is exited.
1457 ** For convenience, this function returns a suitable value for
1458 ** m_function return value:
1460 ** CLIENT_EXITED if (client_p == source_p)
1461 ** 0 if (client_p != source_p)
1464 exit_client(struct Client
*client_p
, /* The local client originating the
1465 * exit or NULL, if this exit is
1466 * generated by this server for
1468 * This will not get any of the
1469 * generated messages. */
1470 struct Client
*source_p
, /* Client exiting */
1471 struct Client
*from
, /* Client firing off this Exit,
1473 const char *comment
/* Reason for the exit */
1476 hook_data_client_exit hdata
;
1477 if(IsClosing(source_p
))
1480 /* note, this HAS to be here, when we exit a client we attempt to
1481 * send them data, if this generates a write error we must *not* add
1482 * them to the abort list --fl
1484 SetClosing(source_p
);
1486 hdata
.local_link
= client_p
;
1487 hdata
.target
= source_p
;
1489 hdata
.comment
= comment
;
1490 call_hook(h_client_exit
, &hdata
);
1492 if(MyConnect(source_p
))
1494 /* Local clients of various types */
1495 if(IsPerson(source_p
))
1496 return exit_local_client(client_p
, source_p
, from
, comment
);
1497 else if(IsServer(source_p
))
1498 return exit_local_server(client_p
, source_p
, from
, comment
);
1499 /* IsUnknown || IsConnecting || IsHandShake */
1500 else if(!IsReject(source_p
))
1501 return exit_unknown_client(client_p
, source_p
, from
, comment
);
1506 if(IsPerson(source_p
))
1507 return exit_remote_client(client_p
, source_p
, from
, comment
);
1508 else if(IsServer(source_p
))
1509 return exit_remote_server(client_p
, source_p
, from
, comment
);
1516 * Count up local client memory
1519 /* XXX one common Client list now */
1521 count_local_client_memory(size_t * count
, size_t * local_client_memory_used
)
1524 rb_bh_usage(lclient_heap
, count
, NULL
, &lusage
, NULL
);
1525 *local_client_memory_used
= lusage
+ (*count
* (sizeof(void *) + sizeof(struct Client
)));
1529 * Count up remote client memory
1532 count_remote_client_memory(size_t * count
, size_t * remote_client_memory_used
)
1534 size_t lcount
, rcount
;
1535 rb_bh_usage(lclient_heap
, &lcount
, NULL
, NULL
, NULL
);
1536 rb_bh_usage(client_heap
, &rcount
, NULL
, NULL
, NULL
);
1537 *count
= rcount
- lcount
;
1538 *remote_client_memory_used
= *count
* (sizeof(void *) + sizeof(struct Client
));
1543 * accept processing, this adds a form of "caller ID" to ircd
1545 * If a client puts themselves into "caller ID only" mode,
1546 * only clients that match a client pointer they have put on
1547 * the accept list will be allowed to message them.
1549 * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1551 * [target.allow_list] -> [ source1 ] -> [source2 ]
1553 * i.e. a target will have a link list of source pointers it will allow
1554 * each source client then has a back pointer pointing back
1555 * to the client that has it on its accept list.
1556 * This allows for exit_one_client to remove these now bogus entries
1557 * from any client having an accept on them.
1562 * inputs - pointer to exiting client
1564 * side effects - Walk through given clients allow_list and on_allow_list
1565 * remove all references to this client
1568 del_all_accepts(struct Client
*client_p
)
1571 rb_dlink_node
*next_ptr
;
1572 struct Client
*target_p
;
1574 if(MyClient(client_p
) && client_p
->localClient
->allow_list
.head
)
1576 /* clear this clients accept list, and remove them from
1577 * everyones on_accept_list
1579 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->localClient
->allow_list
.head
)
1581 target_p
= ptr
->data
;
1582 rb_dlinkFindDestroy(client_p
, &target_p
->on_allow_list
);
1583 rb_dlinkDestroy(ptr
, &client_p
->localClient
->allow_list
);
1587 /* remove this client from everyones accept list */
1588 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
1590 target_p
= ptr
->data
;
1591 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
1592 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
1597 * show_ip() - asks if the true IP shoudl be shown when source is
1598 * askin for info about target
1600 * Inputs - source_p who is asking
1601 * - target_p who do we want the info on
1602 * Output - returns 1 if clear IP can be showed, otherwise 0
1603 * Side Effects - none
1607 show_ip(struct Client
*source_p
, struct Client
*target_p
)
1609 if(IsAnyServer(target_p
))
1613 else if(IsIPSpoof(target_p
))
1615 /* source == NULL indicates message is being sent
1618 if(!ConfigFileEntry
.hide_spoof_ips
&&
1619 (source_p
== NULL
|| MyOper(source_p
)))
1623 else if(IsDynSpoof(target_p
) && (source_p
!= NULL
&& !IsOper(source_p
)))
1630 show_ip_conf(struct ConfItem
*aconf
, struct Client
*source_p
)
1632 if(IsConfDoSpoofIp(aconf
))
1634 if(!ConfigFileEntry
.hide_spoof_ips
&& MyOper(source_p
))
1646 * inputs - pointer to client struct
1647 * output - pointer to struct User
1648 * side effects - add's an User information block to a client
1649 * if it was not previously allocated.
1652 make_user(struct Client
*client_p
)
1656 user
= client_p
->user
;
1659 user
= (struct User
*) rb_bh_alloc(user_heap
);
1661 client_p
->user
= user
;
1669 * inputs - pointer to client struct
1670 * output - pointer to server_t
1671 * side effects - add's an Server information block to a client
1672 * if it was not previously allocated.
1675 make_server(struct Client
*client_p
)
1677 struct Server
*serv
= client_p
->serv
;
1681 serv
= (struct Server
*) rb_malloc(sizeof(struct Server
));
1682 client_p
->serv
= serv
;
1684 return client_p
->serv
;
1690 * inputs - pointer to user struct
1691 * - pointer to client struct
1693 * side effects - Decrease user reference count by one and release block,
1694 * if count reaches 0
1697 free_user(struct User
*user
, struct Client
*client_p
)
1699 free_away(client_p
);
1701 if(--user
->refcnt
<= 0)
1704 rb_free((char *) user
->away
);
1708 if(user
->refcnt
< 0 || user
->invited
.head
|| user
->channel
.head
)
1710 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1711 "* %#lx user (%s!%s@%s) %#lx %#lx %#lx %lu %d *",
1712 (unsigned long) client_p
,
1713 client_p
? client_p
->
1717 (unsigned long) user
,
1718 (unsigned long) user
->invited
.head
,
1719 (unsigned long) user
->channel
.head
,
1720 rb_dlink_list_length(&user
->channel
),
1722 s_assert(!user
->refcnt
);
1723 s_assert(!user
->invited
.head
);
1724 s_assert(!user
->channel
.head
);
1727 rb_bh_free(user_heap
, user
);
1732 allocate_away(struct Client
*client_p
)
1734 if(client_p
->user
->away
== NULL
)
1735 client_p
->user
->away
= rb_bh_alloc(away_heap
);
1740 free_away(struct Client
*client_p
)
1742 if(client_p
->user
!= NULL
&& client_p
->user
->away
!= NULL
) {
1743 rb_bh_free(away_heap
, client_p
->user
->away
);
1744 client_p
->user
->away
= NULL
;
1753 for(i
= 0; i
< 3; i
++)
1754 current_uid
[i
] = me
.id
[i
];
1756 for(i
= 3; i
< 9; i
++)
1757 current_uid
[i
] = 'A';
1759 current_uid
[9] = '\0';
1768 for(i
= 8; i
> 3; i
--)
1770 if(current_uid
[i
] == 'Z')
1772 current_uid
[i
] = '0';
1775 else if(current_uid
[i
] != '9')
1781 current_uid
[i
] = 'A';
1784 /* if this next if() triggers, we're fucked. */
1785 if(current_uid
[3] == 'Z')
1787 current_uid
[i
] = 'A';
1798 * Close the physical connection. This function must make
1799 * MyConnect(client_p) == FALSE, and set client_p->from == NULL.
1802 close_connection(struct Client
*client_p
)
1804 s_assert(client_p
!= NULL
);
1805 if(client_p
== NULL
)
1808 s_assert(MyConnect(client_p
));
1809 if(!MyConnect(client_p
))
1812 if(IsServer(client_p
))
1814 struct server_conf
*server_p
;
1816 ServerStats
.is_sv
++;
1817 ServerStats
.is_sbs
+= client_p
->localClient
->sendB
;
1818 ServerStats
.is_sbr
+= client_p
->localClient
->receiveB
;
1819 ServerStats
.is_sti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
1822 * If the connection has been up for a long amount of time, schedule
1823 * a 'quick' reconnect, else reset the next-connect cycle.
1825 if((server_p
= find_server_conf(client_p
->name
)) != NULL
)
1828 * Reschedule a faster reconnect, if this was a automatically
1829 * connected configuration entry. (Note that if we have had
1830 * a rehash in between, the status has been changed to
1831 * CONF_ILLEGAL). But only do this if it was a "good" link.
1833 server_p
->hold
= time(NULL
);
1835 (server_p
->hold
- client_p
->localClient
->lasttime
>
1836 HANGONGOODLINK
) ? HANGONRETRYDELAY
: ConFreq(server_p
->class);
1840 else if(IsClient(client_p
))
1842 ServerStats
.is_cl
++;
1843 ServerStats
.is_cbs
+= client_p
->localClient
->sendB
;
1844 ServerStats
.is_cbr
+= client_p
->localClient
->receiveB
;
1845 ServerStats
.is_cti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
1848 ServerStats
.is_ni
++;
1850 if(client_p
->localClient
->F
!= NULL
)
1852 /* attempt to flush any pending dbufs. Evil, but .. -- adrian */
1853 if(!IsIOError(client_p
))
1854 send_queued(client_p
);
1856 del_from_cli_fd_hash(client_p
);
1857 rb_close(client_p
->localClient
->F
);
1858 client_p
->localClient
->F
= NULL
;
1861 rb_linebuf_donebuf(&client_p
->localClient
->buf_sendq
);
1862 rb_linebuf_donebuf(&client_p
->localClient
->buf_recvq
);
1863 detach_conf(client_p
);
1865 /* XXX shouldnt really be done here. */
1866 detach_server_conf(client_p
);
1868 client_p
->from
= NULL
; /* ...this should catch them! >:) --msa */
1869 ClearMyConnect(client_p
);
1870 SetIOError(client_p
);
1876 error_exit_client(struct Client
*client_p
, int error
)
1879 * ...hmm, with non-blocking sockets we might get
1880 * here from quite valid reasons, although.. why
1881 * would select report "data available" when there
1882 * wasn't... so, this must be an error anyway... --msa
1883 * actually, EOF occurs when read() returns 0 and
1884 * in due course, select() returns that fd as ready
1885 * for reading even though it ends up being an EOF. -avalon
1888 int current_error
= rb_get_sockerr(client_p
->localClient
->F
);
1890 SetIOError(client_p
);
1892 if(IsServer(client_p
) || IsHandshake(client_p
))
1896 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
1897 "Server %s closed the connection",
1900 ilog(L_SERVER
, "Server %s closed the connection",
1901 log_client_name(client_p
, SHOW_IP
));
1905 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
1906 "Lost connection to %s: %s",
1907 client_p
->name
, strerror(current_error
));
1908 ilog(L_SERVER
, "Lost connection to %s: %s",
1909 log_client_name(client_p
, SHOW_IP
), strerror(current_error
));
1914 rb_strlcpy(errmsg
, "Remote host closed the connection", sizeof(errmsg
));
1916 rb_snprintf(errmsg
, sizeof(errmsg
), "Read error: %s", strerror(current_error
));
1918 exit_client(client_p
, client_p
, &me
, errmsg
);