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 $
34 #include "irc_string.h"
35 #include "sprintf_irc.h"
41 #include "s_newconf.h"
54 #include "blacklist.h"
57 #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 extern rb_bh
*client_heap
;
77 extern rb_bh
*lclient_heap
;
78 extern rb_bh
*pclient_heap
;
79 static rb_bh
*away_heap
= NULL
;
81 extern 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 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
= (struct LocalUser
*) 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
= (struct 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
->challenge
);
235 rb_free(client_p
->localClient
->fullcaps
);
236 rb_free(client_p
->localClient
->opername
);
237 rb_free(client_p
->localClient
->mangledhost
);
239 ssld_decrement_clicount(client_p
->localClient
->ssl_ctl
);
241 rb_bh_free(lclient_heap
, client_p
->localClient
);
242 client_p
->localClient
= NULL
;
246 free_client(struct Client
*client_p
)
248 s_assert(NULL
!= client_p
);
249 s_assert(&me
!= client_p
);
250 free_local_client(client_p
);
251 free_pre_client(client_p
);
252 rb_bh_free(client_heap
, client_p
);
256 * check_pings - go through the local client list and check activity
257 * kill off stuff that should die
259 * inputs - NOT USED (from event)
260 * output - next time_t when check_pings() should be called again
264 * A PING can be sent to clients as necessary.
266 * Client/Server ping outs are handled.
270 * Addon from adrian. We used to call this after nextping seconds,
271 * however I've changed it to run once a second. This is only for
272 * PING timeouts, not K/etc-line checks (thanks dianora!). Having it
273 * run once a second makes life a lot easier - when a new client connects
274 * and they need a ping in 4 seconds, if nextping was set to 20 seconds
275 * we end up waiting 20 seconds. This is stupid. :-)
276 * I will optimise (hah!) check_pings() once I've finished working on
277 * tidying up other network IO evilnesses.
282 check_pings(void *notused
)
284 check_pings_list(&lclient_list
);
285 check_pings_list(&serv_list
);
286 check_unknowns_list(&unknown_list
);
292 * inputs - pointer to list to check
297 check_pings_list(rb_dlink_list
* list
)
299 char scratch
[32]; /* way too generous but... */
300 struct Client
*client_p
; /* current local client_p being examined */
301 int ping
= 0; /* ping time value from client */
302 rb_dlink_node
*ptr
, *next_ptr
;
304 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
306 client_p
= ptr
->data
;
308 if(!MyConnect(client_p
) || IsDead(client_p
))
311 ping
= get_client_ping(client_p
);
313 if(ping
< (rb_current_time() - client_p
->localClient
->lasttime
))
316 * If the client/server hasnt talked to us in 2*ping seconds
317 * and it has a ping time, then close its connection.
319 if(((rb_current_time() - client_p
->localClient
->lasttime
) >= (2 * ping
)
320 && (client_p
->flags
& FLAGS_PINGSENT
)))
322 if(IsServer(client_p
))
324 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
325 "No response from %s, closing link",
326 get_server_name(client_p
, HIDE_IP
));
328 "No response from %s, closing link",
329 log_client_name(client_p
, HIDE_IP
));
331 (void) rb_snprintf(scratch
, sizeof(scratch
),
332 "Ping timeout: %d seconds",
333 (int) (rb_current_time() - client_p
->localClient
->lasttime
));
335 exit_client(client_p
, client_p
, &me
, scratch
);
338 else if((client_p
->flags
& FLAGS_PINGSENT
) == 0)
341 * if we havent PINGed the connection and we havent
342 * heard from it in a while, PING it to make sure
345 client_p
->flags
|= FLAGS_PINGSENT
;
346 /* not nice but does the job */
347 client_p
->localClient
->lasttime
= rb_current_time() - ping
;
348 sendto_one(client_p
, "PING :%s", me
.name
);
357 * check_unknowns_list
359 * inputs - pointer to list of unknown clients
361 * side effects - unknown clients get marked for termination after n seconds
364 check_unknowns_list(rb_dlink_list
* list
)
366 rb_dlink_node
*ptr
, *next_ptr
;
367 struct Client
*client_p
;
370 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
372 client_p
= ptr
->data
;
374 if(IsDead(client_p
) || IsClosing(client_p
))
378 * Check UNKNOWN connections - if they have been in this state
379 * for > 30s, close them.
382 timeout
= IsAnyServer(client_p
) ? ConfigFileEntry
.connect_timeout
: 30;
383 if((rb_current_time() - client_p
->localClient
->firsttime
) > timeout
)
385 if(IsAnyServer(client_p
))
387 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
388 "No response from %s, closing link",
389 get_server_name(client_p
, HIDE_IP
));
391 "No response from %s, closing link",
392 log_client_name(client_p
, HIDE_IP
));
394 exit_client(client_p
, client_p
, &me
, "Connection timed out");
400 notify_banned_client(struct Client
*client_p
, struct ConfItem
*aconf
, int ban
)
402 static const char conn_closed
[] = "Connection closed";
403 static const char d_lined
[] = "D-lined";
404 static const char k_lined
[] = "K-lined";
405 const char *reason
= NULL
;
406 const char *exit_reason
= conn_closed
;
408 if(ConfigFileEntry
.kline_with_reason
&& !EmptyString(aconf
->passwd
))
410 reason
= aconf
->passwd
;
411 exit_reason
= aconf
->passwd
;
415 switch (aconf
->status
)
426 if(ban
== D_LINED
&& !IsPerson(client_p
))
427 sendto_one(client_p
, "NOTICE DLINE :*** You have been D-lined");
429 sendto_one(client_p
, form_str(ERR_YOUREBANNEDCREEP
),
430 me
.name
, client_p
->name
, reason
);
432 exit_client(client_p
, client_p
, &me
,
433 EmptyString(ConfigFileEntry
.kline_reason
) ? exit_reason
:
434 ConfigFileEntry
.kline_reason
);
441 * side effects - Check all connections for a pending k/dline against the
442 * client, exit the client if found.
445 check_banned_lines(void)
447 struct Client
*client_p
; /* current local client_p being examined */
448 struct ConfItem
*aconf
= NULL
;
449 rb_dlink_node
*ptr
, *next_ptr
;
451 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
453 client_p
= ptr
->data
;
458 /* if there is a returned struct ConfItem then kill it */
459 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
, client_p
->localClient
->ip
.ss_family
)))
461 if(aconf
->status
& CONF_EXEMPTDLINE
)
464 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
465 "DLINE active for %s",
466 get_client_name(client_p
, HIDE_IP
));
468 notify_banned_client(client_p
, aconf
, D_LINED
);
469 continue; /* and go examine next fd/client_p */
472 if(!IsPerson(client_p
))
475 if((aconf
= find_kline(client_p
)) != NULL
)
477 if(IsExemptKline(client_p
))
479 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
480 "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
481 get_client_name(client_p
, HIDE_IP
),
482 aconf
->user
, aconf
->host
);
486 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
487 "KLINE active for %s",
488 get_client_name(client_p
, HIDE_IP
));
489 notify_banned_client(client_p
, aconf
, K_LINED
);
492 else if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
494 if(IsExemptKline(client_p
))
496 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
497 "XLINE over-ruled for %s, client is kline_exempt [%s]",
498 get_client_name(client_p
, HIDE_IP
),
503 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
504 get_client_name(client_p
, HIDE_IP
));
506 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
511 /* also check the unknowns list for new dlines */
512 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
514 client_p
= ptr
->data
;
516 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)))
518 if(aconf
->status
& CONF_EXEMPTDLINE
)
521 notify_banned_client(client_p
, aconf
, D_LINED
);
527 /* check_klines_event()
531 * side effects - check_klines() is called, kline_queued unset
534 check_klines_event(void *unused
)
544 * side effects - all clients will be checked for klines
549 struct Client
*client_p
;
550 struct ConfItem
*aconf
;
552 rb_dlink_node
*next_ptr
;
554 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
556 client_p
= ptr
->data
;
558 if(IsMe(client_p
) || !IsPerson(client_p
))
561 if((aconf
= find_kline(client_p
)) != NULL
)
563 if(IsExemptKline(client_p
))
565 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
566 "KLINE over-ruled for %s, client is kline_exempt",
567 get_client_name(client_p
, HIDE_IP
));
571 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
572 "KLINE active for %s",
573 get_client_name(client_p
, HIDE_IP
));
575 notify_banned_client(client_p
, aconf
, K_LINED
);
585 * side effects - all clients will be checked for dlines
590 struct Client
*client_p
;
591 struct ConfItem
*aconf
;
593 rb_dlink_node
*next_ptr
;
595 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
597 client_p
= ptr
->data
;
602 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
604 if(aconf
->status
& CONF_EXEMPTDLINE
)
607 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
608 "DLINE active for %s",
609 get_client_name(client_p
, HIDE_IP
));
611 notify_banned_client(client_p
, aconf
, D_LINED
);
616 /* dlines need to be checked against unknowns too */
617 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
619 client_p
= ptr
->data
;
621 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
623 if(aconf
->status
& CONF_EXEMPTDLINE
)
626 notify_banned_client(client_p
, aconf
, D_LINED
);
635 * side effects - all clients will be checked for xlines
640 struct Client
*client_p
;
641 struct ConfItem
*aconf
;
643 rb_dlink_node
*next_ptr
;
645 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
647 client_p
= ptr
->data
;
649 if(IsMe(client_p
) || !IsPerson(client_p
))
652 if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
654 if(IsExemptKline(client_p
))
656 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
657 "XLINE over-ruled for %s, client is kline_exempt",
658 get_client_name(client_p
, HIDE_IP
));
662 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
663 get_client_name(client_p
, HIDE_IP
));
665 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
672 * update_client_exit_stats
674 * input - pointer to client
679 update_client_exit_stats(struct Client
*client_p
)
681 if(IsServer(client_p
))
683 sendto_realops_snomask(SNO_EXTERNAL
, L_ALL
,
684 "Server %s split from %s",
685 client_p
->name
, client_p
->servptr
->name
);
686 if(HasSentEob(client_p
))
689 else if(IsClient(client_p
))
694 if(IsInvisible(client_p
))
698 if(splitchecking
&& !splitmode
)
699 check_splitmode(NULL
);
703 * release_client_state
705 * input - pointer to client to release
710 release_client_state(struct Client
*client_p
)
712 if(client_p
->user
!= NULL
)
714 free_user(client_p
->user
, client_p
); /* try this here */
718 if(client_p
->serv
->user
!= NULL
)
719 free_user(client_p
->serv
->user
, client_p
);
720 if(client_p
->serv
->fullcaps
)
721 rb_free(client_p
->serv
->fullcaps
);
722 rb_free(client_p
->serv
);
727 * remove_client_from_list
728 * inputs - point to client to remove
730 * side effects - taken the code from ExitOneClient() for this
731 * and placed it here. - avalon
734 remove_client_from_list(struct Client
*client_p
)
736 s_assert(NULL
!= client_p
);
741 /* A client made with make_client()
742 * is on the unknown_list until removed.
743 * If it =does= happen to exit before its removed from that list
744 * and its =not= on the global_client_list, it will core here.
745 * short circuit that case now -db
747 if(client_p
->node
.prev
== NULL
&& client_p
->node
.next
== NULL
)
750 rb_dlinkDelete(&client_p
->node
, &global_client_list
);
752 update_client_exit_stats(client_p
);
757 * find_person - find person by (nick)name.
758 * inputs - pointer to name
759 * output - return client pointer
763 find_person(const char *name
)
765 struct Client
*c2ptr
;
767 c2ptr
= find_client(name
);
769 if(c2ptr
&& IsPerson(c2ptr
))
775 find_named_person(const char *name
)
777 struct Client
*c2ptr
;
779 c2ptr
= find_named_client(name
);
781 if(c2ptr
&& IsPerson(c2ptr
))
788 * find_chasing - find the client structure for a nick name (user)
789 * using history mechanism if necessary. If the client is not found,
790 * an error message (NO SUCH NICK) is generated. If the client was found
791 * through the history, chasing will be 1 and otherwise 0.
794 find_chasing(struct Client
*source_p
, const char *user
, int *chasing
)
798 if(MyClient(source_p
))
799 who
= find_named_person(user
);
801 who
= find_person(user
);
806 if(who
|| IsDigit(*user
))
809 if(!(who
= get_history(user
, (long) KILLCHASETIMELIMIT
)))
811 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
812 form_str(ERR_NOSUCHNICK
), user
);
821 * get_client_name - Return the name of the client
822 * for various tracking and
823 * admin purposes. The main purpose of this function is to
824 * return the "socket host" name of the client, if that
825 * differs from the advertised name (other than case).
826 * But, this can be used to any client structure.
829 * Watch out the allocation of "nbuf", if either source_p->name
830 * or source_p->sockhost gets changed into pointers instead of
831 * directly allocated within the structure...
834 * Function return either a pointer to the structure (source_p) or
835 * to internal buffer (nbuf). *NEVER* use the returned pointer
836 * to modify what it points!!!
840 get_client_name(struct Client
*client
, int showip
)
842 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
844 s_assert(NULL
!= client
);
848 if(MyConnect(client
))
850 if(!irccmp(client
->name
, client
->host
))
853 if(ConfigFileEntry
.hide_spoof_ips
&&
854 showip
== SHOW_IP
&& IsIPSpoof(client
))
856 #ifdef HIDE_SERVERS_IPS
857 if(IsAnyServer(client
))
861 /* And finally, let's get the host information, ip or name */
865 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
866 client
->name
, client
->username
,
870 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
871 client
->name
, client
->username
);
874 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
875 client
->name
, client
->username
, client
->host
);
880 /* As pointed out by Adel Mezibra
881 * Neph|l|m@EFnet. Was missing a return here.
887 get_server_name(struct Client
*target_p
, int showip
)
889 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
894 if(!MyConnect(target_p
) || !irccmp(target_p
->name
, target_p
->host
))
895 return target_p
->name
;
897 #ifdef HIDE_SERVERS_IPS
898 if(EmptyString(target_p
->name
))
900 rb_snprintf(nbuf
, sizeof(nbuf
), "[%s@255.255.255.255]",
905 return target_p
->name
;
911 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
912 target_p
->name
, target_p
->username
,
917 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
918 target_p
->name
, target_p
->username
);
921 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
922 target_p
->name
, target_p
->username
,
931 * This version is the same as get_client_name, but doesnt contain the
932 * code that will hide IPs always. This should be used for logfiles.
935 log_client_name(struct Client
*target_p
, int showip
)
937 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
942 if(MyConnect(target_p
))
944 if(irccmp(target_p
->name
, target_p
->host
) == 0)
945 return target_p
->name
;
950 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
951 target_p
->username
, target_p
->sockhost
);
955 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
956 target_p
->name
, target_p
->username
);
959 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
960 target_p
->username
, target_p
->host
);
966 return target_p
->name
;
969 /* is_remote_connect - Returns whether a server was /connect'ed by a remote
970 * oper (send notices netwide) */
972 is_remote_connect(struct Client
*client_p
)
976 if (client_p
->serv
== NULL
)
978 oper
= find_named_person(client_p
->serv
->by
);
979 return oper
!= NULL
&& IsOper(oper
) && !MyConnect(oper
);
983 free_exited_clients(void *unused
)
985 rb_dlink_node
*ptr
, *next
;
986 struct Client
*target_p
;
988 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_list
.head
)
990 target_p
= ptr
->data
;
992 #ifdef DEBUG_EXITED_CLIENTS
994 struct abort_client
*abt
;
998 RB_DLINK_FOREACH(aptr
, abort_list
.head
)
1001 if(abt
->client
== target_p
)
1004 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1005 "On abort_list: %s stat: %u flags: %u/%u handler: %c",
1006 target_p
->name
, (unsigned int) target_p
->status
,
1007 target_p
->flags
, target_p
->flags2
, target_p
->handler
);
1008 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1009 "Please report this to the charybdis developers!");
1016 rb_dlinkDestroy(ptr
, &dead_list
);
1022 if(ptr
->data
== NULL
)
1024 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1025 "Warning: null client on dead_list!");
1026 rb_dlinkDestroy(ptr
, &dead_list
);
1029 release_client_state(target_p
);
1030 free_client(target_p
);
1031 rb_dlinkDestroy(ptr
, &dead_list
);
1034 #ifdef DEBUG_EXITED_CLIENTS
1035 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_remote_list
.head
)
1037 target_p
= ptr
->data
;
1039 if(ptr
->data
== NULL
)
1041 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1042 "Warning: null client on dead_list!");
1043 rb_dlinkDestroy(ptr
, &dead_list
);
1046 release_client_state(target_p
);
1047 free_client(target_p
);
1048 rb_dlinkDestroy(ptr
, &dead_remote_list
);
1055 ** Recursively send QUITs and SQUITs for source_p and all its dependent clients
1056 ** and servers to those servers that need them. A server needs the client
1057 ** QUITs if it can't figure them out from the SQUIT (ie pre-TS4) or if it
1058 ** isn't getting the SQUIT because of @#(*&@)# hostmasking. With TS4, once
1059 ** a link gets a SQUIT, it doesn't need any QUIT/SQUITs for clients depending
1060 ** on that one -orabidoo
1063 recurse_send_quits(struct Client
*client_p
, struct Client
*source_p
,
1064 struct Client
*to
, const char *comment1
,
1065 const char *comment
)
1067 struct Client
*target_p
;
1068 rb_dlink_node
*ptr
, *ptr_next
;
1069 /* If this server can handle quit storm (QS) removal
1070 * of dependents, just send the SQUIT
1073 if(IsCapable(to
, CAP_QS
))
1075 sendto_one(to
, "SQUIT %s :%s",
1076 get_id(source_p
, to
), comment
);
1080 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1082 target_p
= ptr
->data
;
1083 sendto_one(to
, ":%s QUIT :%s", target_p
->name
, comment1
);
1085 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1087 target_p
= ptr
->data
;
1088 recurse_send_quits(client_p
, target_p
, to
, comment1
, comment
);
1090 sendto_one(to
, "SQUIT %s :%s", source_p
->name
, comment
);
1095 ** Remove all clients that depend on source_p; assumes all (S)QUITs have
1096 ** already been sent. we make sure to exit a server's dependent clients
1097 ** and servers before the server itself; exit_one_client takes care of
1098 ** actually removing things off llists. tweaked from +CSr31 -orabidoo
1101 * added sanity test code.... source_p->serv might be NULL...
1104 recurse_remove_clients(struct Client
*source_p
, const char *comment
)
1106 struct Client
*target_p
;
1107 rb_dlink_node
*ptr
, *ptr_next
;
1112 if(source_p
->serv
== NULL
) /* oooops. uh this is actually a major bug */
1115 /* this is very ugly, but it saves cpu :P */
1116 if(ConfigFileEntry
.nick_delay
> 0)
1118 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1120 target_p
= ptr
->data
;
1121 target_p
->flags
|= FLAGS_KILLED
;
1122 add_nd_entry(target_p
->name
);
1124 if(!IsDead(target_p
) && !IsClosing(target_p
))
1125 exit_remote_client(NULL
, target_p
, &me
, comment
);
1130 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1132 target_p
= ptr
->data
;
1133 target_p
->flags
|= FLAGS_KILLED
;
1135 if(!IsDead(target_p
) && !IsClosing(target_p
))
1136 exit_remote_client(NULL
, target_p
, &me
, comment
);
1140 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1142 target_p
= ptr
->data
;
1143 recurse_remove_clients(target_p
, comment
);
1144 qs_server(NULL
, target_p
, &me
, comment
);
1149 ** Remove *everything* that depends on source_p, from all lists, and sending
1150 ** all necessary QUITs and SQUITs. source_p itself is still on the lists,
1151 ** and its SQUITs have been sent except for the upstream one -orabidoo
1154 remove_dependents(struct Client
*client_p
,
1155 struct Client
*source_p
,
1156 struct Client
*from
, const char *comment
, const char *comment1
)
1159 rb_dlink_node
*ptr
, *next
;
1161 RB_DLINK_FOREACH_SAFE(ptr
, next
, serv_list
.head
)
1165 if(IsMe(to
) || to
== source_p
->from
||
1166 (to
== client_p
&& IsCapable(to
, CAP_QS
)))
1169 recurse_send_quits(client_p
, source_p
, to
, comment1
, comment
);
1172 recurse_remove_clients(source_p
, comment1
);
1176 exit_aborted_clients(void *unused
)
1178 struct abort_client
*abt
;
1179 rb_dlink_node
*ptr
, *next
;
1180 RB_DLINK_FOREACH_SAFE(ptr
, next
, abort_list
.head
)
1184 #ifdef DEBUG_EXITED_CLIENTS
1186 if(rb_dlinkFind(abt
->client
, &dead_list
))
1189 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1190 "On dead_list: %s stat: %u flags: %u/%u handler: %c",
1191 abt
->client
->name
, (unsigned int) abt
->client
->status
,
1192 abt
->client
->flags
, abt
->client
->flags2
, abt
->client
->handler
);
1193 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1194 "Please report this to the charybdis developers!");
1200 s_assert(*((unsigned long*)abt
->client
) != 0xdeadbeef); /* This is lame but its a debug thing */
1201 rb_dlinkDelete(ptr
, &abort_list
);
1203 if(IsAnyServer(abt
->client
))
1204 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1205 "Closing link to %s: %s",
1206 get_server_name(abt
->client
, HIDE_IP
), abt
->notice
);
1208 /* its no longer on abort list - we *must* remove
1209 * FLAGS_CLOSING otherwise exit_client() will not run --fl
1211 abt
->client
->flags
&= ~FLAGS_CLOSING
;
1212 exit_client(abt
->client
, abt
->client
, &me
, abt
->notice
);
1219 * dead_link - Adds client to a list of clients that need an exit_client()
1223 dead_link(struct Client
*client_p
)
1225 struct abort_client
*abt
;
1227 s_assert(!IsMe(client_p
));
1228 if(IsDead(client_p
) || IsClosing(client_p
) || IsMe(client_p
))
1231 abt
= (struct abort_client
*) rb_malloc(sizeof(struct abort_client
));
1233 if(client_p
->flags
& FLAGS_SENDQEX
)
1234 strlcpy(abt
->notice
, "Max SendQ exceeded", sizeof(abt
->notice
));
1236 rb_snprintf(abt
->notice
, sizeof(abt
->notice
), "Write error: %s", strerror(errno
));
1238 abt
->client
= client_p
;
1239 SetIOError(client_p
);
1241 SetClosing(client_p
);
1242 rb_dlinkAdd(abt
, &abt
->node
, &abort_list
);
1246 /* This does the remove of the user from channels..local or remote */
1248 exit_generic_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1249 const char *comment
)
1251 rb_dlink_node
*ptr
, *next_ptr
;
1253 if(IsOper(source_p
))
1254 rb_dlinkFindDestroy(source_p
, &oper_list
);
1256 sendto_common_channels_local(source_p
, ":%s!%s@%s QUIT :%s",
1258 source_p
->username
, source_p
->host
, comment
);
1260 remove_user_from_channels(source_p
);
1262 /* Should not be in any channels now */
1263 s_assert(source_p
->user
->channel
.head
== NULL
);
1265 /* Clean up invitefield */
1266 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, source_p
->user
->invited
.head
)
1268 del_invite(ptr
->data
, source_p
);
1271 /* Clean up allow lists */
1272 del_all_accepts(source_p
);
1274 add_history(source_p
, 0);
1275 off_history(source_p
);
1277 monitor_signoff(source_p
);
1279 if(has_id(source_p
))
1280 del_from_id_hash(source_p
->id
, source_p
);
1282 del_from_hostname_hash(source_p
->orighost
, source_p
);
1283 del_from_client_hash(source_p
->name
, source_p
);
1284 remove_client_from_list(source_p
);
1288 * Assumes IsPerson(source_p) && !MyConnect(source_p)
1292 exit_remote_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1293 const char *comment
)
1295 exit_generic_client(client_p
, source_p
, from
, comment
);
1297 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1299 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->users
);
1302 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1304 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1305 ":%s QUIT :%s", use_id(source_p
), comment
);
1306 sendto_server(client_p
, NULL
, NOCAPS
, CAP_TS6
,
1307 ":%s QUIT :%s", source_p
->name
, comment
);
1311 #ifdef DEBUG_EXITED_CLIENTS
1312 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1314 rb_dlinkAddAlloc(source_p
, &dead_list
);
1316 return(CLIENT_EXITED
);
1320 * This assumes IsUnknown(source_p) == TRUE and MyConnect(source_p) == TRUE
1324 exit_unknown_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1325 const char *comment
)
1327 delete_auth_queries(source_p
);
1328 if (source_p
->localClient
->dnsquery
)
1330 delete_resolver_queries(source_p
->localClient
->dnsquery
);
1331 rb_free(source_p
->localClient
->dnsquery
);
1333 del_unknown_ip(source_p
);
1334 rb_dlinkDelete(&source_p
->localClient
->tnode
, &unknown_list
);
1336 if(!IsIOError(source_p
))
1337 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)",
1338 source_p
->user
!= NULL
? source_p
->host
: "127.0.0.1",
1341 close_connection(source_p
);
1343 if(has_id(source_p
))
1344 del_from_id_hash(source_p
->id
, source_p
);
1346 del_from_hostname_hash(source_p
->host
, source_p
);
1347 del_from_client_hash(source_p
->name
, source_p
);
1348 remove_client_from_list(source_p
);
1350 rb_dlinkAddAlloc(source_p
, &dead_list
);
1352 /* Note that we don't need to add unknowns to the dead_list */
1353 return(CLIENT_EXITED
);
1357 exit_remote_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1358 const char *comment
)
1360 static char comment1
[(HOSTLEN
*2)+2];
1361 static char newcomment
[BUFSIZE
];
1362 struct Client
*target_p
;
1364 if(ConfigServerHide
.flatten_links
)
1365 strcpy(comment1
, "*.net *.split");
1368 strcpy(comment1
, source_p
->servptr
->name
);
1369 strcat(comment1
, " ");
1370 strcat(comment1
, source_p
->name
);
1373 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1374 from
->name
, comment
);
1376 if(source_p
->serv
!= NULL
)
1377 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1379 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1380 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1384 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1385 target_p
= source_p
->from
;
1387 if(target_p
!= NULL
&& IsServer(target_p
) && target_p
!= client_p
&&
1388 !IsMe(target_p
) && (source_p
->flags
& FLAGS_KILLED
) == 0)
1390 sendto_one(target_p
, ":%s SQUIT %s :%s",
1391 get_id(from
, target_p
), get_id(source_p
, target_p
),
1395 if(has_id(source_p
))
1396 del_from_id_hash(source_p
->id
, source_p
);
1398 del_from_client_hash(source_p
->name
, source_p
);
1399 remove_client_from_list(source_p
);
1400 scache_split(source_p
->serv
->nameinfo
);
1403 #ifdef DEBUG_EXITED_CLIENTS
1404 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1406 rb_dlinkAddAlloc(source_p
, &dead_list
);
1412 qs_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1413 const char *comment
)
1415 struct Client
*target_p
;
1417 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1418 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1422 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1423 target_p
= source_p
->from
;
1425 if(has_id(source_p
))
1426 del_from_id_hash(source_p
->id
, source_p
);
1428 del_from_client_hash(source_p
->name
, source_p
);
1429 remove_client_from_list(source_p
);
1430 scache_split(source_p
->serv
->nameinfo
);
1433 rb_dlinkAddAlloc(source_p
, &dead_list
);
1438 exit_local_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1439 const char *comment
)
1441 static char comment1
[(HOSTLEN
*2)+2];
1442 static char newcomment
[BUFSIZE
];
1443 unsigned int sendk
, recvk
;
1445 rb_dlinkDelete(&source_p
->localClient
->tnode
, &serv_list
);
1446 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1448 unset_chcap_usage_counts(source_p
);
1449 sendk
= source_p
->localClient
->sendK
;
1450 recvk
= source_p
->localClient
->receiveK
;
1452 /* Always show source here, so the server notices show
1453 * which side initiated the split -- jilles
1455 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1456 from
== source_p
? me
.name
: from
->name
, comment
);
1457 if (!IsIOError(source_p
))
1458 sendto_one(source_p
, "SQUIT %s :%s", use_id(source_p
),
1460 if(client_p
!= NULL
&& source_p
!= client_p
&& !IsIOError(source_p
))
1462 sendto_one(source_p
, "ERROR :Closing Link: 127.0.0.1 %s (%s)",
1463 source_p
->name
, comment
);
1466 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1467 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1472 close_connection(source_p
);
1474 if(ConfigServerHide
.flatten_links
)
1475 strcpy(comment1
, "*.net *.split");
1478 strcpy(comment1
, source_p
->servptr
->name
);
1479 strcat(comment1
, " ");
1480 strcat(comment1
, source_p
->name
);
1483 if(source_p
->serv
!= NULL
)
1484 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1486 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "%s was connected"
1487 " for %ld seconds. %d/%d sendK/recvK.",
1488 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1490 ilog(L_SERVER
, "%s was connected for %ld seconds. %d/%d sendK/recvK.",
1491 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1493 if(has_id(source_p
))
1494 del_from_id_hash(source_p
->id
, source_p
);
1496 del_from_client_hash(source_p
->name
, source_p
);
1497 remove_client_from_list(source_p
);
1498 scache_split(source_p
->serv
->nameinfo
);
1501 rb_dlinkAddAlloc(source_p
, &dead_list
);
1507 * This assumes IsPerson(source_p) == TRUE && MyConnect(source_p) == TRUE
1511 exit_local_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1512 const char *comment
)
1514 unsigned long on_for
;
1516 exit_generic_client(client_p
, source_p
, from
, comment
);
1517 clear_monitor(source_p
);
1519 s_assert(IsPerson(source_p
));
1520 rb_dlinkDelete(&source_p
->localClient
->tnode
, &lclient_list
);
1521 rb_dlinkDelete(&source_p
->lnode
, &me
.serv
->users
);
1523 if(IsOper(source_p
))
1524 rb_dlinkFindDestroy(source_p
, &local_oper_list
);
1526 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
1527 "Client exiting: %s (%s@%s) [%s] [%s]",
1529 source_p
->username
, source_p
->host
, comment
,
1530 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255");
1532 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
1533 "CLIEXIT %s %s %s %s 0 %s",
1534 source_p
->name
, source_p
->username
, source_p
->host
,
1535 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255",
1538 on_for
= rb_current_time() - source_p
->localClient
->firsttime
;
1540 ilog(L_USER
, "%s (%3lu:%02lu:%02lu): %s!%s@%s %d/%d",
1541 myctime(rb_current_time()), on_for
/ 3600,
1542 (on_for
% 3600) / 60, on_for
% 60,
1543 source_p
->name
, source_p
->username
, source_p
->host
,
1544 source_p
->localClient
->sendK
, source_p
->localClient
->receiveK
);
1546 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)", source_p
->host
, comment
);
1547 close_connection(source_p
);
1549 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1551 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1552 ":%s QUIT :%s", use_id(source_p
), comment
);
1553 sendto_server(client_p
, NULL
, NOCAPS
, CAP_TS6
,
1554 ":%s QUIT :%s", source_p
->name
, comment
);
1558 rb_dlinkAddAlloc(source_p
, &dead_list
);
1559 return(CLIENT_EXITED
);
1564 ** exit_client - This is old "m_bye". Name changed, because this is not a
1565 ** protocol function, but a general server utility function.
1567 ** This function exits a client of *any* type (user, server, etc)
1568 ** from this server. Also, this generates all necessary prototol
1569 ** messages that this exit may cause.
1571 ** 1) If the client is a local client, then this implicitly
1572 ** exits all other clients depending on this connection (e.g.
1573 ** remote clients having 'from'-field that points to this.
1575 ** 2) If the client is a remote client, then only this is exited.
1577 ** For convenience, this function returns a suitable value for
1578 ** m_function return value:
1580 ** CLIENT_EXITED if (client_p == source_p)
1581 ** 0 if (client_p != source_p)
1584 exit_client(struct Client
*client_p
, /* The local client originating the
1585 * exit or NULL, if this exit is
1586 * generated by this server for
1588 * This will not get any of the
1589 * generated messages. */
1590 struct Client
*source_p
, /* Client exiting */
1591 struct Client
*from
, /* Client firing off this Exit,
1593 const char *comment
/* Reason for the exit */
1596 hook_data_client_exit hdata
;
1597 if(IsClosing(source_p
))
1600 /* note, this HAS to be here, when we exit a client we attempt to
1601 * send them data, if this generates a write error we must *not* add
1602 * them to the abort list --fl
1604 SetClosing(source_p
);
1606 hdata
.local_link
= client_p
;
1607 hdata
.target
= source_p
;
1609 hdata
.comment
= comment
;
1610 call_hook(h_client_exit
, &hdata
);
1612 if(MyConnect(source_p
))
1614 /* Local clients of various types */
1615 if(IsPerson(source_p
))
1616 return exit_local_client(client_p
, source_p
, from
, comment
);
1617 else if(IsServer(source_p
))
1618 return exit_local_server(client_p
, source_p
, from
, comment
);
1619 /* IsUnknown || IsConnecting || IsHandShake */
1620 else if(!IsReject(source_p
))
1621 return exit_unknown_client(client_p
, source_p
, from
, comment
);
1626 if(IsPerson(source_p
))
1627 return exit_remote_client(client_p
, source_p
, from
, comment
);
1628 else if(IsServer(source_p
))
1629 return exit_remote_server(client_p
, source_p
, from
, comment
);
1636 * Count up local client memory
1639 /* XXX one common Client list now */
1641 count_local_client_memory(size_t * count
, size_t * local_client_memory_used
)
1644 rb_bh_usage(lclient_heap
, count
, NULL
, &lusage
, NULL
);
1645 *local_client_memory_used
= lusage
+ (*count
* (sizeof(void *) + sizeof(struct Client
)));
1649 * Count up remote client memory
1652 count_remote_client_memory(size_t * count
, size_t * remote_client_memory_used
)
1654 size_t lcount
, rcount
;
1655 rb_bh_usage(lclient_heap
, &lcount
, NULL
, NULL
, NULL
);
1656 rb_bh_usage(client_heap
, &rcount
, NULL
, NULL
, NULL
);
1657 *count
= rcount
- lcount
;
1658 *remote_client_memory_used
= *count
* (sizeof(void *) + sizeof(struct Client
));
1663 * accept processing, this adds a form of "caller ID" to ircd
1665 * If a client puts themselves into "caller ID only" mode,
1666 * only clients that match a client pointer they have put on
1667 * the accept list will be allowed to message them.
1669 * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1671 * [target.allow_list] -> [ source1 ] -> [source2 ]
1673 * i.e. a target will have a link list of source pointers it will allow
1674 * each source client then has a back pointer pointing back
1675 * to the client that has it on its accept list.
1676 * This allows for exit_one_client to remove these now bogus entries
1677 * from any client having an accept on them.
1682 * inputs - pointer to exiting client
1684 * side effects - Walk through given clients allow_list and on_allow_list
1685 * remove all references to this client
1688 del_all_accepts(struct Client
*client_p
)
1691 rb_dlink_node
*next_ptr
;
1692 struct Client
*target_p
;
1694 if(MyClient(client_p
) && client_p
->localClient
->allow_list
.head
)
1696 /* clear this clients accept list, and remove them from
1697 * everyones on_accept_list
1699 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->localClient
->allow_list
.head
)
1701 target_p
= ptr
->data
;
1702 rb_dlinkFindDestroy(client_p
, &target_p
->on_allow_list
);
1703 rb_dlinkDestroy(ptr
, &client_p
->localClient
->allow_list
);
1707 /* remove this client from everyones accept list */
1708 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
1710 target_p
= ptr
->data
;
1711 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
1712 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
1717 * show_ip() - asks if the true IP shoudl be shown when source is
1718 * askin for info about target
1720 * Inputs - source_p who is asking
1721 * - target_p who do we want the info on
1722 * Output - returns 1 if clear IP can be showed, otherwise 0
1723 * Side Effects - none
1727 show_ip(struct Client
*source_p
, struct Client
*target_p
)
1729 if(IsAnyServer(target_p
))
1731 #ifndef HIDE_SERVERS_IPS
1732 if(source_p
== NULL
|| IsOper(source_p
))
1737 else if(IsIPSpoof(target_p
))
1739 /* source == NULL indicates message is being sent
1742 if(!ConfigFileEntry
.hide_spoof_ips
&&
1743 (source_p
== NULL
|| MyOper(source_p
)))
1747 else if(IsDynSpoof(target_p
) && (source_p
!= NULL
&& !IsOper(source_p
)))
1754 show_ip_conf(struct ConfItem
*aconf
, struct Client
*source_p
)
1756 if(IsConfDoSpoofIp(aconf
))
1758 if(!ConfigFileEntry
.hide_spoof_ips
&& MyOper(source_p
))
1773 * side effects - Creates a block heap for struct Users
1776 static rb_bh
*user_heap
;
1780 user_heap
= rb_bh_create(sizeof(struct User
), USER_HEAP_SIZE
, "user_heap");
1788 * inputs - pointer to client struct
1789 * output - pointer to struct User
1790 * side effects - add's an User information block to a client
1791 * if it was not previously allocated.
1794 make_user(struct Client
*client_p
)
1798 user
= client_p
->user
;
1801 user
= (struct User
*) rb_bh_alloc(user_heap
);
1803 client_p
->user
= user
;
1811 * inputs - pointer to client struct
1812 * output - pointer to server_t
1813 * side effects - add's an Server information block to a client
1814 * if it was not previously allocated.
1817 make_server(struct Client
*client_p
)
1819 server_t
*serv
= client_p
->serv
;
1823 serv
= (server_t
*) rb_malloc(sizeof(server_t
));
1824 client_p
->serv
= serv
;
1826 return client_p
->serv
;
1832 * inputs - pointer to user struct
1833 * - pointer to client struct
1835 * side effects - Decrease user reference count by one and release block,
1836 * if count reaches 0
1839 free_user(struct User
*user
, struct Client
*client_p
)
1841 free_away(client_p
);
1843 if(--user
->refcnt
<= 0)
1846 rb_free((char *) user
->away
);
1850 if(user
->refcnt
< 0 || user
->invited
.head
|| user
->channel
.head
)
1852 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1853 "* %#lx user (%s!%s@%s) %#lx %#lx %#lx %lu %d *",
1854 (unsigned long) client_p
,
1855 client_p
? client_p
->
1859 (unsigned long) user
,
1860 (unsigned long) user
->invited
.head
,
1861 (unsigned long) user
->channel
.head
,
1862 rb_dlink_list_length(&user
->channel
),
1864 s_assert(!user
->refcnt
);
1865 s_assert(!user
->invited
.head
);
1866 s_assert(!user
->channel
.head
);
1869 rb_bh_free(user_heap
, user
);
1874 allocate_away(struct Client
*client_p
)
1876 if(client_p
->user
->away
== NULL
)
1877 client_p
->user
->away
= rb_bh_alloc(away_heap
);
1882 free_away(struct Client
*client_p
)
1884 if(client_p
->user
!= NULL
&& client_p
->user
->away
!= NULL
) {
1885 rb_bh_free(away_heap
, client_p
->user
->away
);
1886 client_p
->user
->away
= NULL
;
1895 for(i
= 0; i
< 3; i
++)
1896 current_uid
[i
] = me
.id
[i
];
1898 for(i
= 3; i
< 9; i
++)
1899 current_uid
[i
] = 'A';
1901 current_uid
[9] = '\0';
1910 for(i
= 8; i
> 3; i
--)
1912 if(current_uid
[i
] == 'Z')
1914 current_uid
[i
] = '0';
1917 else if(current_uid
[i
] != '9')
1923 current_uid
[i
] = 'A';
1926 /* if this next if() triggers, we're fucked. */
1927 if(current_uid
[3] == 'Z')
1929 current_uid
[i
] = 'A';
1940 * Close the physical connection. This function must make
1941 * MyConnect(client_p) == FALSE, and set client_p->from == NULL.
1944 close_connection(struct Client
*client_p
)
1946 s_assert(client_p
!= NULL
);
1947 if(client_p
== NULL
)
1950 s_assert(MyConnect(client_p
));
1951 if(!MyConnect(client_p
))
1954 if(IsServer(client_p
))
1956 struct server_conf
*server_p
;
1958 ServerStats
.is_sv
++;
1959 ServerStats
.is_sbs
+= client_p
->localClient
->sendB
;
1960 ServerStats
.is_sbr
+= client_p
->localClient
->receiveB
;
1961 ServerStats
.is_sti
+= rb_current_time() - client_p
->localClient
->firsttime
;
1964 * If the connection has been up for a long amount of time, schedule
1965 * a 'quick' reconnect, else reset the next-connect cycle.
1967 if((server_p
= find_server_conf(client_p
->name
)) != NULL
)
1970 * Reschedule a faster reconnect, if this was a automatically
1971 * connected configuration entry. (Note that if we have had
1972 * a rehash in between, the status has been changed to
1973 * CONF_ILLEGAL). But only do this if it was a "good" link.
1975 server_p
->hold
= time(NULL
);
1977 (server_p
->hold
- client_p
->localClient
->lasttime
>
1978 HANGONGOODLINK
) ? HANGONRETRYDELAY
: ConFreq(server_p
->class);
1982 else if(IsClient(client_p
))
1984 ServerStats
.is_cl
++;
1985 ServerStats
.is_cbs
+= client_p
->localClient
->sendB
;
1986 ServerStats
.is_cbr
+= client_p
->localClient
->receiveB
;
1987 ServerStats
.is_cti
+= rb_current_time() - client_p
->localClient
->firsttime
;
1990 ServerStats
.is_ni
++;
1992 if(client_p
->localClient
->F
!= NULL
)
1994 /* attempt to flush any pending dbufs. Evil, but .. -- adrian */
1995 if(!IsIOError(client_p
))
1996 send_queued(client_p
);
1998 del_from_cli_fd_hash(client_p
);
1999 rb_close(client_p
->localClient
->F
);
2000 client_p
->localClient
->F
= NULL
;
2003 rb_linebuf_donebuf(&client_p
->localClient
->buf_sendq
);
2004 rb_linebuf_donebuf(&client_p
->localClient
->buf_recvq
);
2005 detach_conf(client_p
);
2007 /* XXX shouldnt really be done here. */
2008 detach_server_conf(client_p
);
2010 client_p
->from
= NULL
; /* ...this should catch them! >:) --msa */
2011 ClearMyConnect(client_p
);
2012 SetIOError(client_p
);
2018 error_exit_client(struct Client
*client_p
, int error
)
2021 * ...hmm, with non-blocking sockets we might get
2022 * here from quite valid reasons, although.. why
2023 * would select report "data available" when there
2024 * wasn't... so, this must be an error anyway... --msa
2025 * actually, EOF occurs when read() returns 0 and
2026 * in due course, select() returns that fd as ready
2027 * for reading even though it ends up being an EOF. -avalon
2030 int current_error
= rb_get_sockerr(client_p
->localClient
->F
);
2032 SetIOError(client_p
);
2034 if(IsServer(client_p
) || IsHandshake(client_p
))
2038 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2039 "Server %s closed the connection",
2040 get_server_name(client_p
, SHOW_IP
));
2042 ilog(L_SERVER
, "Server %s closed the connection",
2043 log_client_name(client_p
, SHOW_IP
));
2047 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2048 "Lost connection to %s: %s",
2049 client_p
->name
, strerror(current_error
));
2050 ilog(L_SERVER
, "Lost connection to %s: %s",
2051 log_client_name(client_p
, SHOW_IP
), strerror(current_error
));
2056 strlcpy(errmsg
, "Remote host closed the connection", sizeof(errmsg
));
2058 rb_snprintf(errmsg
, sizeof(errmsg
), "Read error: %s", strerror(current_error
));
2060 exit_client(client_p
, client_p
, &me
, errmsg
);