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
->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",
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
))
377 /* still has DNSbls to validate against */
378 if(client_p
->preClient
!= NULL
&&
379 rb_dlink_list_length(&client_p
->preClient
->dnsbl_queries
) > 0)
383 * Check UNKNOWN connections - if they have been in this state
384 * for > 30s, close them.
387 timeout
= IsAnyServer(client_p
) ? ConfigFileEntry
.connect_timeout
: 30;
388 if((rb_current_time() - client_p
->localClient
->firsttime
) > timeout
)
390 if(IsAnyServer(client_p
))
392 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
393 "No response from %s, closing link",
396 "No response from %s, closing link",
397 log_client_name(client_p
, HIDE_IP
));
399 exit_client(client_p
, client_p
, &me
, "Connection timed out");
405 notify_banned_client(struct Client
*client_p
, struct ConfItem
*aconf
, int ban
)
407 static const char conn_closed
[] = "Connection closed";
408 static const char d_lined
[] = "D-lined";
409 static const char k_lined
[] = "K-lined";
410 const char *reason
= NULL
;
411 const char *exit_reason
= conn_closed
;
413 if(ConfigFileEntry
.kline_with_reason
&& !EmptyString(aconf
->passwd
))
415 reason
= aconf
->passwd
;
416 exit_reason
= aconf
->passwd
;
420 reason
= aconf
->status
== D_LINED
? d_lined
: k_lined
;
423 if(ban
== D_LINED
&& !IsPerson(client_p
))
424 sendto_one(client_p
, "NOTICE DLINE :*** You have been D-lined");
426 sendto_one(client_p
, form_str(ERR_YOUREBANNEDCREEP
),
427 me
.name
, client_p
->name
, reason
);
429 exit_client(client_p
, client_p
, &me
,
430 EmptyString(ConfigFileEntry
.kline_reason
) ? exit_reason
:
431 ConfigFileEntry
.kline_reason
);
438 * side effects - Check all connections for a pending k/dline against the
439 * client, exit the client if found.
442 check_banned_lines(void)
444 struct Client
*client_p
; /* current local client_p being examined */
445 struct ConfItem
*aconf
= NULL
;
446 rb_dlink_node
*ptr
, *next_ptr
;
448 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
450 client_p
= ptr
->data
;
455 /* if there is a returned struct ConfItem then kill it */
456 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
, client_p
->localClient
->ip
.ss_family
)))
458 if(aconf
->status
& CONF_EXEMPTDLINE
)
461 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
462 "DLINE active for %s",
463 get_client_name(client_p
, HIDE_IP
));
465 notify_banned_client(client_p
, aconf
, D_LINED
);
466 continue; /* and go examine next fd/client_p */
469 if(!IsPerson(client_p
))
472 if((aconf
= find_kline(client_p
)) != NULL
)
474 if(IsExemptKline(client_p
))
476 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
477 "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
478 get_client_name(client_p
, HIDE_IP
),
479 aconf
->user
, aconf
->host
);
483 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
484 "KLINE active for %s",
485 get_client_name(client_p
, HIDE_IP
));
486 notify_banned_client(client_p
, aconf
, K_LINED
);
489 else if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
491 if(IsExemptKline(client_p
))
493 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
494 "XLINE over-ruled for %s, client is kline_exempt [%s]",
495 get_client_name(client_p
, HIDE_IP
),
500 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
501 get_client_name(client_p
, HIDE_IP
));
503 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
508 /* also check the unknowns list for new dlines */
509 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
511 client_p
= ptr
->data
;
513 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)))
515 if(aconf
->status
& CONF_EXEMPTDLINE
)
518 notify_banned_client(client_p
, aconf
, D_LINED
);
524 /* check_klines_event()
528 * side effects - check_klines() is called, kline_queued unset
531 check_klines_event(void *unused
)
541 * side effects - all clients will be checked for klines
546 struct Client
*client_p
;
547 struct ConfItem
*aconf
;
549 rb_dlink_node
*next_ptr
;
551 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
553 client_p
= ptr
->data
;
555 if(IsMe(client_p
) || !IsPerson(client_p
))
558 if((aconf
= find_kline(client_p
)) != NULL
)
560 if(IsExemptKline(client_p
))
562 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
563 "KLINE over-ruled for %s, client is kline_exempt",
564 get_client_name(client_p
, HIDE_IP
));
568 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
569 "KLINE active for %s",
570 get_client_name(client_p
, HIDE_IP
));
572 notify_banned_client(client_p
, aconf
, K_LINED
);
582 * side effects - all clients will be checked for dlines
587 struct Client
*client_p
;
588 struct ConfItem
*aconf
;
590 rb_dlink_node
*next_ptr
;
592 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
594 client_p
= ptr
->data
;
599 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
601 if(aconf
->status
& CONF_EXEMPTDLINE
)
604 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
605 "DLINE active for %s",
606 get_client_name(client_p
, HIDE_IP
));
608 notify_banned_client(client_p
, aconf
, D_LINED
);
613 /* dlines need to be checked against unknowns too */
614 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
616 client_p
= ptr
->data
;
618 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
620 if(aconf
->status
& CONF_EXEMPTDLINE
)
623 notify_banned_client(client_p
, aconf
, D_LINED
);
632 * side effects - all clients will be checked for xlines
637 struct Client
*client_p
;
638 struct ConfItem
*aconf
;
640 rb_dlink_node
*next_ptr
;
642 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
644 client_p
= ptr
->data
;
646 if(IsMe(client_p
) || !IsPerson(client_p
))
649 if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
651 if(IsExemptKline(client_p
))
653 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
654 "XLINE over-ruled for %s, client is kline_exempt",
655 get_client_name(client_p
, HIDE_IP
));
659 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
660 get_client_name(client_p
, HIDE_IP
));
662 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
669 * update_client_exit_stats
671 * input - pointer to client
676 update_client_exit_stats(struct Client
*client_p
)
678 if(IsServer(client_p
))
680 sendto_realops_snomask(SNO_EXTERNAL
, L_ALL
,
681 "Server %s split from %s",
682 client_p
->name
, client_p
->servptr
->name
);
683 if(HasSentEob(client_p
))
686 else if(IsClient(client_p
))
691 if(IsInvisible(client_p
))
695 if(splitchecking
&& !splitmode
)
696 check_splitmode(NULL
);
700 * release_client_state
702 * input - pointer to client to release
707 release_client_state(struct Client
*client_p
)
709 if(client_p
->user
!= NULL
)
711 free_user(client_p
->user
, client_p
); /* try this here */
715 if(client_p
->serv
->user
!= NULL
)
716 free_user(client_p
->serv
->user
, client_p
);
717 if(client_p
->serv
->fullcaps
)
718 rb_free(client_p
->serv
->fullcaps
);
719 rb_free(client_p
->serv
);
724 * remove_client_from_list
725 * inputs - point to client to remove
727 * side effects - taken the code from ExitOneClient() for this
728 * and placed it here. - avalon
731 remove_client_from_list(struct Client
*client_p
)
733 s_assert(NULL
!= client_p
);
738 /* A client made with make_client()
739 * is on the unknown_list until removed.
740 * If it =does= happen to exit before its removed from that list
741 * and its =not= on the global_client_list, it will core here.
742 * short circuit that case now -db
744 if(client_p
->node
.prev
== NULL
&& client_p
->node
.next
== NULL
)
747 rb_dlinkDelete(&client_p
->node
, &global_client_list
);
749 update_client_exit_stats(client_p
);
754 * find_person - find person by (nick)name.
755 * inputs - pointer to name
756 * output - return client pointer
760 find_person(const char *name
)
762 struct Client
*c2ptr
;
764 c2ptr
= find_client(name
);
766 if(c2ptr
&& IsPerson(c2ptr
))
772 find_named_person(const char *name
)
774 struct Client
*c2ptr
;
776 c2ptr
= find_named_client(name
);
778 if(c2ptr
&& IsPerson(c2ptr
))
785 * find_chasing - find the client structure for a nick name (user)
786 * using history mechanism if necessary. If the client is not found,
787 * an error message (NO SUCH NICK) is generated. If the client was found
788 * through the history, chasing will be 1 and otherwise 0.
791 find_chasing(struct Client
*source_p
, const char *user
, int *chasing
)
795 if(MyClient(source_p
))
796 who
= find_named_person(user
);
798 who
= find_person(user
);
803 if(who
|| IsDigit(*user
))
806 if(!(who
= get_history(user
, (long) KILLCHASETIMELIMIT
)))
808 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
809 form_str(ERR_NOSUCHNICK
), user
);
818 * get_client_name - Return the name of the client
819 * for various tracking and
820 * admin purposes. The main purpose of this function is to
821 * return the "socket host" name of the client, if that
822 * differs from the advertised name (other than case).
823 * But, this can be used to any client structure.
826 * Watch out the allocation of "nbuf", if either source_p->name
827 * or source_p->sockhost gets changed into pointers instead of
828 * directly allocated within the structure...
831 * Function return either a pointer to the structure (source_p) or
832 * to internal buffer (nbuf). *NEVER* use the returned pointer
833 * to modify what it points!!!
837 get_client_name(struct Client
*client
, int showip
)
839 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
841 s_assert(NULL
!= client
);
845 if(MyConnect(client
))
847 if(!irccmp(client
->name
, client
->host
))
850 if(ConfigFileEntry
.hide_spoof_ips
&&
851 showip
== SHOW_IP
&& IsIPSpoof(client
))
853 if(IsAnyServer(client
))
856 /* And finally, let's get the host information, ip or name */
860 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
861 client
->name
, client
->username
,
865 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
866 client
->name
, client
->username
);
869 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
870 client
->name
, client
->username
, client
->host
);
875 /* As pointed out by Adel Mezibra
876 * Neph|l|m@EFnet. Was missing a return here.
883 * This version is the same as get_client_name, but doesnt contain the
884 * code that will hide IPs always. This should be used for logfiles.
887 log_client_name(struct Client
*target_p
, int showip
)
889 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
894 if(MyConnect(target_p
))
896 if(irccmp(target_p
->name
, target_p
->host
) == 0)
897 return target_p
->name
;
902 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
903 target_p
->username
, target_p
->sockhost
);
907 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
908 target_p
->name
, target_p
->username
);
911 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
912 target_p
->username
, target_p
->host
);
918 return target_p
->name
;
921 /* is_remote_connect - Returns whether a server was /connect'ed by a remote
922 * oper (send notices netwide) */
924 is_remote_connect(struct Client
*client_p
)
928 if (client_p
->serv
== NULL
)
930 oper
= find_named_person(client_p
->serv
->by
);
931 return oper
!= NULL
&& IsOper(oper
) && !MyConnect(oper
);
935 free_exited_clients(void *unused
)
937 rb_dlink_node
*ptr
, *next
;
938 struct Client
*target_p
;
940 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_list
.head
)
942 target_p
= ptr
->data
;
944 #ifdef DEBUG_EXITED_CLIENTS
946 struct abort_client
*abt
;
950 RB_DLINK_FOREACH(aptr
, abort_list
.head
)
953 if(abt
->client
== target_p
)
956 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
957 "On abort_list: %s stat: %u flags: %u/%u handler: %c",
958 target_p
->name
, (unsigned int) target_p
->status
,
959 target_p
->flags
, target_p
->flags2
, target_p
->handler
);
960 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
961 "Please report this to the charybdis developers!");
968 rb_dlinkDestroy(ptr
, &dead_list
);
974 if(ptr
->data
== NULL
)
976 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
977 "Warning: null client on dead_list!");
978 rb_dlinkDestroy(ptr
, &dead_list
);
981 release_client_state(target_p
);
982 free_client(target_p
);
983 rb_dlinkDestroy(ptr
, &dead_list
);
986 #ifdef DEBUG_EXITED_CLIENTS
987 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_remote_list
.head
)
989 target_p
= ptr
->data
;
991 if(ptr
->data
== NULL
)
993 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
994 "Warning: null client on dead_list!");
995 rb_dlinkDestroy(ptr
, &dead_list
);
998 release_client_state(target_p
);
999 free_client(target_p
);
1000 rb_dlinkDestroy(ptr
, &dead_remote_list
);
1007 ** Recursively send QUITs and SQUITs for source_p and all its dependent clients
1008 ** and servers to those servers that need them. A server needs the client
1009 ** QUITs if it can't figure them out from the SQUIT (ie pre-TS4) or if it
1010 ** isn't getting the SQUIT because of @#(*&@)# hostmasking. With TS4, once
1011 ** a link gets a SQUIT, it doesn't need any QUIT/SQUITs for clients depending
1012 ** on that one -orabidoo
1015 recurse_send_quits(struct Client
*client_p
, struct Client
*source_p
,
1016 struct Client
*to
, const char *comment1
,
1017 const char *comment
)
1019 struct Client
*target_p
;
1020 rb_dlink_node
*ptr
, *ptr_next
;
1021 /* If this server can handle quit storm (QS) removal
1022 * of dependents, just send the SQUIT
1025 if(IsCapable(to
, CAP_QS
))
1027 sendto_one(to
, "SQUIT %s :%s",
1028 get_id(source_p
, to
), comment
);
1032 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1034 target_p
= ptr
->data
;
1035 sendto_one(to
, ":%s QUIT :%s", target_p
->name
, comment1
);
1037 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1039 target_p
= ptr
->data
;
1040 recurse_send_quits(client_p
, target_p
, to
, comment1
, comment
);
1042 sendto_one(to
, "SQUIT %s :%s", source_p
->name
, comment
);
1047 ** Remove all clients that depend on source_p; assumes all (S)QUITs have
1048 ** already been sent. we make sure to exit a server's dependent clients
1049 ** and servers before the server itself; exit_one_client takes care of
1050 ** actually removing things off llists. tweaked from +CSr31 -orabidoo
1053 * added sanity test code.... source_p->serv might be NULL...
1056 recurse_remove_clients(struct Client
*source_p
, const char *comment
)
1058 struct Client
*target_p
;
1059 rb_dlink_node
*ptr
, *ptr_next
;
1064 if(source_p
->serv
== NULL
) /* oooops. uh this is actually a major bug */
1067 /* this is very ugly, but it saves cpu :P */
1068 if(ConfigFileEntry
.nick_delay
> 0)
1070 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1072 target_p
= ptr
->data
;
1073 target_p
->flags
|= FLAGS_KILLED
;
1074 add_nd_entry(target_p
->name
);
1076 if(!IsDead(target_p
) && !IsClosing(target_p
))
1077 exit_remote_client(NULL
, target_p
, &me
, comment
);
1082 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1084 target_p
= ptr
->data
;
1085 target_p
->flags
|= FLAGS_KILLED
;
1087 if(!IsDead(target_p
) && !IsClosing(target_p
))
1088 exit_remote_client(NULL
, target_p
, &me
, comment
);
1092 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1094 target_p
= ptr
->data
;
1095 recurse_remove_clients(target_p
, comment
);
1096 qs_server(NULL
, target_p
, &me
, comment
);
1101 ** Remove *everything* that depends on source_p, from all lists, and sending
1102 ** all necessary QUITs and SQUITs. source_p itself is still on the lists,
1103 ** and its SQUITs have been sent except for the upstream one -orabidoo
1106 remove_dependents(struct Client
*client_p
,
1107 struct Client
*source_p
,
1108 struct Client
*from
, const char *comment
, const char *comment1
)
1111 rb_dlink_node
*ptr
, *next
;
1113 RB_DLINK_FOREACH_SAFE(ptr
, next
, serv_list
.head
)
1117 if(IsMe(to
) || to
== source_p
->from
||
1118 (to
== client_p
&& IsCapable(to
, CAP_QS
)))
1121 recurse_send_quits(client_p
, source_p
, to
, comment1
, comment
);
1124 recurse_remove_clients(source_p
, comment1
);
1128 exit_aborted_clients(void *unused
)
1130 struct abort_client
*abt
;
1131 rb_dlink_node
*ptr
, *next
;
1132 RB_DLINK_FOREACH_SAFE(ptr
, next
, abort_list
.head
)
1136 #ifdef DEBUG_EXITED_CLIENTS
1138 if(rb_dlinkFind(abt
->client
, &dead_list
))
1141 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1142 "On dead_list: %s stat: %u flags: %u/%u handler: %c",
1143 abt
->client
->name
, (unsigned int) abt
->client
->status
,
1144 abt
->client
->flags
, abt
->client
->flags2
, abt
->client
->handler
);
1145 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1146 "Please report this to the charybdis developers!");
1152 s_assert(*((unsigned long*)abt
->client
) != 0xdeadbeef); /* This is lame but its a debug thing */
1153 rb_dlinkDelete(ptr
, &abort_list
);
1155 if(IsAnyServer(abt
->client
))
1156 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1157 "Closing link to %s: %s",
1158 abt
->client
->name
, abt
->notice
);
1160 /* its no longer on abort list - we *must* remove
1161 * FLAGS_CLOSING otherwise exit_client() will not run --fl
1163 abt
->client
->flags
&= ~FLAGS_CLOSING
;
1164 exit_client(abt
->client
, abt
->client
, &me
, abt
->notice
);
1171 * dead_link - Adds client to a list of clients that need an exit_client()
1175 dead_link(struct Client
*client_p
)
1177 struct abort_client
*abt
;
1179 s_assert(!IsMe(client_p
));
1180 if(IsDead(client_p
) || IsClosing(client_p
) || IsMe(client_p
))
1183 abt
= (struct abort_client
*) rb_malloc(sizeof(struct abort_client
));
1185 if(client_p
->flags
& FLAGS_SENDQEX
)
1186 rb_strlcpy(abt
->notice
, "Max SendQ exceeded", sizeof(abt
->notice
));
1188 rb_snprintf(abt
->notice
, sizeof(abt
->notice
), "Write error: %s", strerror(errno
));
1190 abt
->client
= client_p
;
1191 SetIOError(client_p
);
1193 SetClosing(client_p
);
1194 rb_dlinkAdd(abt
, &abt
->node
, &abort_list
);
1198 /* This does the remove of the user from channels..local or remote */
1200 exit_generic_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1201 const char *comment
)
1203 rb_dlink_node
*ptr
, *next_ptr
;
1205 if(IsOper(source_p
))
1206 rb_dlinkFindDestroy(source_p
, &oper_list
);
1208 sendto_common_channels_local(source_p
, ":%s!%s@%s QUIT :%s",
1210 source_p
->username
, source_p
->host
, comment
);
1212 remove_user_from_channels(source_p
);
1214 /* Should not be in any channels now */
1215 s_assert(source_p
->user
->channel
.head
== NULL
);
1217 /* Clean up invitefield */
1218 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, source_p
->user
->invited
.head
)
1220 del_invite(ptr
->data
, source_p
);
1223 /* Clean up allow lists */
1224 del_all_accepts(source_p
);
1226 add_history(source_p
, 0);
1227 off_history(source_p
);
1229 monitor_signoff(source_p
);
1231 if(has_id(source_p
))
1232 del_from_id_hash(source_p
->id
, source_p
);
1234 del_from_hostname_hash(source_p
->orighost
, source_p
);
1235 del_from_client_hash(source_p
->name
, source_p
);
1236 remove_client_from_list(source_p
);
1240 * Assumes IsPerson(source_p) && !MyConnect(source_p)
1244 exit_remote_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1245 const char *comment
)
1247 exit_generic_client(client_p
, source_p
, from
, comment
);
1249 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1251 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->users
);
1254 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1256 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1257 ":%s QUIT :%s", use_id(source_p
), comment
);
1261 #ifdef DEBUG_EXITED_CLIENTS
1262 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1264 rb_dlinkAddAlloc(source_p
, &dead_list
);
1266 return(CLIENT_EXITED
);
1270 * This assumes IsUnknown(source_p) == TRUE and MyConnect(source_p) == TRUE
1274 exit_unknown_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1275 const char *comment
)
1277 delete_auth_queries(source_p
);
1278 if (source_p
->localClient
->dnsquery
)
1280 delete_resolver_queries(source_p
->localClient
->dnsquery
);
1281 rb_free(source_p
->localClient
->dnsquery
);
1283 del_unknown_ip(source_p
);
1284 rb_dlinkDelete(&source_p
->localClient
->tnode
, &unknown_list
);
1286 if(!IsIOError(source_p
))
1287 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)",
1288 source_p
->user
!= NULL
? source_p
->host
: "127.0.0.1",
1291 close_connection(source_p
);
1293 if(has_id(source_p
))
1294 del_from_id_hash(source_p
->id
, source_p
);
1296 del_from_hostname_hash(source_p
->host
, source_p
);
1297 del_from_client_hash(source_p
->name
, source_p
);
1298 remove_client_from_list(source_p
);
1300 rb_dlinkAddAlloc(source_p
, &dead_list
);
1302 /* Note that we don't need to add unknowns to the dead_list */
1303 return(CLIENT_EXITED
);
1307 exit_remote_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1308 const char *comment
)
1310 static char comment1
[(HOSTLEN
*2)+2];
1311 static char newcomment
[BUFSIZE
];
1312 struct Client
*target_p
;
1314 if(ConfigServerHide
.flatten_links
)
1315 strcpy(comment1
, "*.net *.split");
1318 strcpy(comment1
, source_p
->servptr
->name
);
1319 strcat(comment1
, " ");
1320 strcat(comment1
, source_p
->name
);
1323 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1324 from
->name
, comment
);
1326 if(source_p
->serv
!= NULL
)
1327 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1329 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1330 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1334 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1335 target_p
= source_p
->from
;
1337 if(target_p
!= NULL
&& IsServer(target_p
) && target_p
!= client_p
&&
1338 !IsMe(target_p
) && (source_p
->flags
& FLAGS_KILLED
) == 0)
1340 sendto_one(target_p
, ":%s SQUIT %s :%s",
1341 get_id(from
, target_p
), get_id(source_p
, target_p
),
1345 if(has_id(source_p
))
1346 del_from_id_hash(source_p
->id
, source_p
);
1348 del_from_client_hash(source_p
->name
, source_p
);
1349 remove_client_from_list(source_p
);
1350 scache_split(source_p
->serv
->nameinfo
);
1353 #ifdef DEBUG_EXITED_CLIENTS
1354 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1356 rb_dlinkAddAlloc(source_p
, &dead_list
);
1362 qs_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1363 const char *comment
)
1365 struct Client
*target_p
;
1367 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1368 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1372 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1373 target_p
= source_p
->from
;
1375 if(has_id(source_p
))
1376 del_from_id_hash(source_p
->id
, source_p
);
1378 del_from_client_hash(source_p
->name
, source_p
);
1379 remove_client_from_list(source_p
);
1380 scache_split(source_p
->serv
->nameinfo
);
1383 rb_dlinkAddAlloc(source_p
, &dead_list
);
1388 exit_local_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1389 const char *comment
)
1391 static char comment1
[(HOSTLEN
*2)+2];
1392 static char newcomment
[BUFSIZE
];
1393 unsigned int sendk
, recvk
;
1395 rb_dlinkDelete(&source_p
->localClient
->tnode
, &serv_list
);
1396 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1398 unset_chcap_usage_counts(source_p
);
1399 sendk
= source_p
->localClient
->sendK
;
1400 recvk
= source_p
->localClient
->receiveK
;
1402 /* Always show source here, so the server notices show
1403 * which side initiated the split -- jilles
1405 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1406 from
== source_p
? me
.name
: from
->name
, comment
);
1407 if (!IsIOError(source_p
))
1408 sendto_one(source_p
, "SQUIT %s :%s", use_id(source_p
),
1410 if(client_p
!= NULL
&& source_p
!= client_p
&& !IsIOError(source_p
))
1412 sendto_one(source_p
, "ERROR :Closing Link: 127.0.0.1 %s (%s)",
1413 source_p
->name
, comment
);
1416 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1417 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1422 close_connection(source_p
);
1424 if(ConfigServerHide
.flatten_links
)
1425 strcpy(comment1
, "*.net *.split");
1428 strcpy(comment1
, source_p
->servptr
->name
);
1429 strcat(comment1
, " ");
1430 strcat(comment1
, source_p
->name
);
1433 if(source_p
->serv
!= NULL
)
1434 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1436 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "%s was connected"
1437 " for %ld seconds. %d/%d sendK/recvK.",
1438 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1440 ilog(L_SERVER
, "%s was connected for %ld seconds. %d/%d sendK/recvK.",
1441 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1443 if(has_id(source_p
))
1444 del_from_id_hash(source_p
->id
, source_p
);
1446 del_from_client_hash(source_p
->name
, source_p
);
1447 remove_client_from_list(source_p
);
1448 scache_split(source_p
->serv
->nameinfo
);
1451 rb_dlinkAddAlloc(source_p
, &dead_list
);
1457 * This assumes IsPerson(source_p) == TRUE && MyConnect(source_p) == TRUE
1461 exit_local_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1462 const char *comment
)
1464 unsigned long on_for
;
1467 exit_generic_client(client_p
, source_p
, from
, comment
);
1468 clear_monitor(source_p
);
1470 s_assert(IsPerson(source_p
));
1471 rb_dlinkDelete(&source_p
->localClient
->tnode
, &lclient_list
);
1472 rb_dlinkDelete(&source_p
->lnode
, &me
.serv
->users
);
1474 if(IsOper(source_p
))
1475 rb_dlinkFindDestroy(source_p
, &local_oper_list
);
1477 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
1478 "Client exiting: %s (%s@%s) [%s] [%s]",
1480 source_p
->username
, source_p
->host
, comment
,
1481 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255");
1483 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
1484 "CLIEXIT %s %s %s %s 0 %s",
1485 source_p
->name
, source_p
->username
, source_p
->host
,
1486 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255",
1489 on_for
= rb_current_time() - source_p
->localClient
->firsttime
;
1491 ilog(L_USER
, "%s (%3lu:%02lu:%02lu): %s!%s@%s %d/%d",
1492 rb_ctime(rb_current_time(), tbuf
, sizeof(tbuf
)), on_for
/ 3600,
1493 (on_for
% 3600) / 60, on_for
% 60,
1494 source_p
->name
, source_p
->username
, source_p
->host
,
1495 source_p
->localClient
->sendK
, source_p
->localClient
->receiveK
);
1497 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)", source_p
->host
, comment
);
1498 close_connection(source_p
);
1500 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1502 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1503 ":%s QUIT :%s", use_id(source_p
), comment
);
1507 rb_dlinkAddAlloc(source_p
, &dead_list
);
1508 return(CLIENT_EXITED
);
1513 ** exit_client - This is old "m_bye". Name changed, because this is not a
1514 ** protocol function, but a general server utility function.
1516 ** This function exits a client of *any* type (user, server, etc)
1517 ** from this server. Also, this generates all necessary prototol
1518 ** messages that this exit may cause.
1520 ** 1) If the client is a local client, then this implicitly
1521 ** exits all other clients depending on this connection (e.g.
1522 ** remote clients having 'from'-field that points to this.
1524 ** 2) If the client is a remote client, then only this is exited.
1526 ** For convenience, this function returns a suitable value for
1527 ** m_function return value:
1529 ** CLIENT_EXITED if (client_p == source_p)
1530 ** 0 if (client_p != source_p)
1533 exit_client(struct Client
*client_p
, /* The local client originating the
1534 * exit or NULL, if this exit is
1535 * generated by this server for
1537 * This will not get any of the
1538 * generated messages. */
1539 struct Client
*source_p
, /* Client exiting */
1540 struct Client
*from
, /* Client firing off this Exit,
1542 const char *comment
/* Reason for the exit */
1545 hook_data_client_exit hdata
;
1546 if(IsClosing(source_p
))
1549 /* note, this HAS to be here, when we exit a client we attempt to
1550 * send them data, if this generates a write error we must *not* add
1551 * them to the abort list --fl
1553 SetClosing(source_p
);
1555 hdata
.local_link
= client_p
;
1556 hdata
.target
= source_p
;
1558 hdata
.comment
= comment
;
1559 call_hook(h_client_exit
, &hdata
);
1561 if(MyConnect(source_p
))
1563 /* Local clients of various types */
1564 if(IsPerson(source_p
))
1565 return exit_local_client(client_p
, source_p
, from
, comment
);
1566 else if(IsServer(source_p
))
1567 return exit_local_server(client_p
, source_p
, from
, comment
);
1568 /* IsUnknown || IsConnecting || IsHandShake */
1569 else if(!IsReject(source_p
))
1570 return exit_unknown_client(client_p
, source_p
, from
, comment
);
1575 if(IsPerson(source_p
))
1576 return exit_remote_client(client_p
, source_p
, from
, comment
);
1577 else if(IsServer(source_p
))
1578 return exit_remote_server(client_p
, source_p
, from
, comment
);
1585 * Count up local client memory
1588 /* XXX one common Client list now */
1590 count_local_client_memory(size_t * count
, size_t * local_client_memory_used
)
1593 rb_bh_usage(lclient_heap
, count
, NULL
, &lusage
, NULL
);
1594 *local_client_memory_used
= lusage
+ (*count
* (sizeof(void *) + sizeof(struct Client
)));
1598 * Count up remote client memory
1601 count_remote_client_memory(size_t * count
, size_t * remote_client_memory_used
)
1603 size_t lcount
, rcount
;
1604 rb_bh_usage(lclient_heap
, &lcount
, NULL
, NULL
, NULL
);
1605 rb_bh_usage(client_heap
, &rcount
, NULL
, NULL
, NULL
);
1606 *count
= rcount
- lcount
;
1607 *remote_client_memory_used
= *count
* (sizeof(void *) + sizeof(struct Client
));
1612 * accept processing, this adds a form of "caller ID" to ircd
1614 * If a client puts themselves into "caller ID only" mode,
1615 * only clients that match a client pointer they have put on
1616 * the accept list will be allowed to message them.
1618 * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1620 * [target.allow_list] -> [ source1 ] -> [source2 ]
1622 * i.e. a target will have a link list of source pointers it will allow
1623 * each source client then has a back pointer pointing back
1624 * to the client that has it on its accept list.
1625 * This allows for exit_one_client to remove these now bogus entries
1626 * from any client having an accept on them.
1631 * inputs - pointer to exiting client
1633 * side effects - Walk through given clients allow_list and on_allow_list
1634 * remove all references to this client
1637 del_all_accepts(struct Client
*client_p
)
1640 rb_dlink_node
*next_ptr
;
1641 struct Client
*target_p
;
1643 if(MyClient(client_p
) && client_p
->localClient
->allow_list
.head
)
1645 /* clear this clients accept list, and remove them from
1646 * everyones on_accept_list
1648 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->localClient
->allow_list
.head
)
1650 target_p
= ptr
->data
;
1651 rb_dlinkFindDestroy(client_p
, &target_p
->on_allow_list
);
1652 rb_dlinkDestroy(ptr
, &client_p
->localClient
->allow_list
);
1656 /* remove this client from everyones accept list */
1657 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
1659 target_p
= ptr
->data
;
1660 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
1661 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
1666 * show_ip() - asks if the true IP shoudl be shown when source is
1667 * askin for info about target
1669 * Inputs - source_p who is asking
1670 * - target_p who do we want the info on
1671 * Output - returns 1 if clear IP can be showed, otherwise 0
1672 * Side Effects - none
1676 show_ip(struct Client
*source_p
, struct Client
*target_p
)
1678 if(IsAnyServer(target_p
))
1682 else if(IsIPSpoof(target_p
))
1684 /* source == NULL indicates message is being sent
1687 if(!ConfigFileEntry
.hide_spoof_ips
&&
1688 (source_p
== NULL
|| MyOper(source_p
)))
1692 else if(IsDynSpoof(target_p
) && (source_p
!= NULL
&& !IsOper(source_p
)))
1699 show_ip_conf(struct ConfItem
*aconf
, struct Client
*source_p
)
1701 if(IsConfDoSpoofIp(aconf
))
1703 if(!ConfigFileEntry
.hide_spoof_ips
&& MyOper(source_p
))
1715 * inputs - pointer to client struct
1716 * output - pointer to struct User
1717 * side effects - add's an User information block to a client
1718 * if it was not previously allocated.
1721 make_user(struct Client
*client_p
)
1725 user
= client_p
->user
;
1728 user
= (struct User
*) rb_bh_alloc(user_heap
);
1730 client_p
->user
= user
;
1738 * inputs - pointer to client struct
1739 * output - pointer to server_t
1740 * side effects - add's an Server information block to a client
1741 * if it was not previously allocated.
1744 make_server(struct Client
*client_p
)
1746 server_t
*serv
= client_p
->serv
;
1750 serv
= (server_t
*) rb_malloc(sizeof(server_t
));
1751 client_p
->serv
= serv
;
1753 return client_p
->serv
;
1759 * inputs - pointer to user struct
1760 * - pointer to client struct
1762 * side effects - Decrease user reference count by one and release block,
1763 * if count reaches 0
1766 free_user(struct User
*user
, struct Client
*client_p
)
1768 free_away(client_p
);
1770 if(--user
->refcnt
<= 0)
1773 rb_free((char *) user
->away
);
1777 if(user
->refcnt
< 0 || user
->invited
.head
|| user
->channel
.head
)
1779 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1780 "* %#lx user (%s!%s@%s) %#lx %#lx %#lx %lu %d *",
1781 (unsigned long) client_p
,
1782 client_p
? client_p
->
1786 (unsigned long) user
,
1787 (unsigned long) user
->invited
.head
,
1788 (unsigned long) user
->channel
.head
,
1789 rb_dlink_list_length(&user
->channel
),
1791 s_assert(!user
->refcnt
);
1792 s_assert(!user
->invited
.head
);
1793 s_assert(!user
->channel
.head
);
1796 rb_bh_free(user_heap
, user
);
1801 allocate_away(struct Client
*client_p
)
1803 if(client_p
->user
->away
== NULL
)
1804 client_p
->user
->away
= rb_bh_alloc(away_heap
);
1809 free_away(struct Client
*client_p
)
1811 if(client_p
->user
!= NULL
&& client_p
->user
->away
!= NULL
) {
1812 rb_bh_free(away_heap
, client_p
->user
->away
);
1813 client_p
->user
->away
= NULL
;
1822 for(i
= 0; i
< 3; i
++)
1823 current_uid
[i
] = me
.id
[i
];
1825 for(i
= 3; i
< 9; i
++)
1826 current_uid
[i
] = 'A';
1828 current_uid
[9] = '\0';
1837 for(i
= 8; i
> 3; i
--)
1839 if(current_uid
[i
] == 'Z')
1841 current_uid
[i
] = '0';
1844 else if(current_uid
[i
] != '9')
1850 current_uid
[i
] = 'A';
1853 /* if this next if() triggers, we're fucked. */
1854 if(current_uid
[3] == 'Z')
1856 current_uid
[i
] = 'A';
1867 * Close the physical connection. This function must make
1868 * MyConnect(client_p) == FALSE, and set client_p->from == NULL.
1871 close_connection(struct Client
*client_p
)
1873 s_assert(client_p
!= NULL
);
1874 if(client_p
== NULL
)
1877 s_assert(MyConnect(client_p
));
1878 if(!MyConnect(client_p
))
1881 if(IsServer(client_p
))
1883 struct server_conf
*server_p
;
1885 ServerStats
.is_sv
++;
1886 ServerStats
.is_sbs
+= client_p
->localClient
->sendB
;
1887 ServerStats
.is_sbr
+= client_p
->localClient
->receiveB
;
1888 ServerStats
.is_sti
+= rb_current_time() - client_p
->localClient
->firsttime
;
1891 * If the connection has been up for a long amount of time, schedule
1892 * a 'quick' reconnect, else reset the next-connect cycle.
1894 if((server_p
= find_server_conf(client_p
->name
)) != NULL
)
1897 * Reschedule a faster reconnect, if this was a automatically
1898 * connected configuration entry. (Note that if we have had
1899 * a rehash in between, the status has been changed to
1900 * CONF_ILLEGAL). But only do this if it was a "good" link.
1902 server_p
->hold
= time(NULL
);
1904 (server_p
->hold
- client_p
->localClient
->lasttime
>
1905 HANGONGOODLINK
) ? HANGONRETRYDELAY
: ConFreq(server_p
->class);
1909 else if(IsClient(client_p
))
1911 ServerStats
.is_cl
++;
1912 ServerStats
.is_cbs
+= client_p
->localClient
->sendB
;
1913 ServerStats
.is_cbr
+= client_p
->localClient
->receiveB
;
1914 ServerStats
.is_cti
+= rb_current_time() - client_p
->localClient
->firsttime
;
1917 ServerStats
.is_ni
++;
1919 if(client_p
->localClient
->F
!= NULL
)
1921 /* attempt to flush any pending dbufs. Evil, but .. -- adrian */
1922 if(!IsIOError(client_p
))
1923 send_queued(client_p
);
1925 del_from_cli_fd_hash(client_p
);
1926 rb_close(client_p
->localClient
->F
);
1927 client_p
->localClient
->F
= NULL
;
1930 rb_linebuf_donebuf(&client_p
->localClient
->buf_sendq
);
1931 rb_linebuf_donebuf(&client_p
->localClient
->buf_recvq
);
1932 detach_conf(client_p
);
1934 /* XXX shouldnt really be done here. */
1935 detach_server_conf(client_p
);
1937 client_p
->from
= NULL
; /* ...this should catch them! >:) --msa */
1938 ClearMyConnect(client_p
);
1939 SetIOError(client_p
);
1945 error_exit_client(struct Client
*client_p
, int error
)
1948 * ...hmm, with non-blocking sockets we might get
1949 * here from quite valid reasons, although.. why
1950 * would select report "data available" when there
1951 * wasn't... so, this must be an error anyway... --msa
1952 * actually, EOF occurs when read() returns 0 and
1953 * in due course, select() returns that fd as ready
1954 * for reading even though it ends up being an EOF. -avalon
1957 int current_error
= rb_get_sockerr(client_p
->localClient
->F
);
1959 SetIOError(client_p
);
1961 if(IsServer(client_p
) || IsHandshake(client_p
))
1965 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
1966 "Server %s closed the connection",
1969 ilog(L_SERVER
, "Server %s closed the connection",
1970 log_client_name(client_p
, SHOW_IP
));
1974 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
1975 "Lost connection to %s: %s",
1976 client_p
->name
, strerror(current_error
));
1977 ilog(L_SERVER
, "Lost connection to %s: %s",
1978 log_client_name(client_p
, SHOW_IP
), strerror(current_error
));
1983 rb_strlcpy(errmsg
, "Remote host closed the connection", sizeof(errmsg
));
1985 rb_snprintf(errmsg
, sizeof(errmsg
), "Read error: %s", strerror(current_error
));
1987 exit_client(client_p
, client_p
, &me
, errmsg
);