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 extern rb_bh
*client_heap
;
76 extern rb_bh
*lclient_heap
;
77 extern rb_bh
*pclient_heap
;
78 static rb_bh
*away_heap
= NULL
;
80 extern 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 away_heap
= rb_bh_create(AWAYLEN
, AWAY_HEAP_SIZE
, "away_heap");
124 rb_event_addish("check_pings", check_pings
, NULL
, 30);
125 rb_event_addish("free_exited_clients", &free_exited_clients
, NULL
, 4);
126 rb_event_addish("exit_aborted_clients", exit_aborted_clients
, NULL
, 1);
127 rb_event_add("flood_recalc", flood_recalc
, NULL
, 1);
129 nd_dict
= irc_dictionary_create(irccmp
);
134 * make_client - create a new Client struct and set it to initial state.
136 * from == NULL, create local client (a client connected
139 * from, create remote client (behind a socket
140 * associated with the client defined by
141 * 'from'). ('from' is a local client!!).
144 make_client(struct Client
*from
)
146 struct Client
*client_p
= NULL
;
147 struct LocalUser
*localClient
;
149 client_p
= rb_bh_alloc(client_heap
);
153 client_p
->from
= client_p
; /* 'from' of local client is self! */
155 localClient
= (struct LocalUser
*) rb_bh_alloc(lclient_heap
);
156 SetMyConnect(client_p
);
157 client_p
->localClient
= localClient
;
159 client_p
->localClient
->lasttime
= client_p
->localClient
->firsttime
= rb_current_time();
161 client_p
->localClient
->F
= NULL
;
163 client_p
->preClient
= (struct PreClient
*) rb_bh_alloc(pclient_heap
);
165 /* as good a place as any... */
166 rb_dlinkAdd(client_p
, &client_p
->localClient
->tnode
, &unknown_list
);
169 { /* from is not NULL */
170 client_p
->localClient
= NULL
;
171 client_p
->preClient
= NULL
;
172 client_p
->from
= from
; /* 'from' of local client is self! */
175 SetUnknown(client_p
);
176 strcpy(client_p
->username
, "unknown");
182 free_pre_client(struct Client
*client_p
)
184 struct Blacklist
*blptr
;
186 s_assert(NULL
!= client_p
);
188 if(client_p
->preClient
== NULL
)
191 blptr
= client_p
->preClient
->dnsbl_listed
;
193 unref_blacklist(blptr
);
194 abort_blacklist_queries(client_p
);
195 rb_bh_free(pclient_heap
, client_p
->preClient
);
196 client_p
->preClient
= NULL
;
200 free_local_client(struct Client
*client_p
)
202 s_assert(NULL
!= client_p
);
203 s_assert(&me
!= client_p
);
205 if(client_p
->localClient
== NULL
)
209 * clean up extra sockets from P-lines which have been discarded.
211 if(client_p
->localClient
->listener
)
213 s_assert(0 < client_p
->localClient
->listener
->ref_count
);
214 if(0 == --client_p
->localClient
->listener
->ref_count
215 && !client_p
->localClient
->listener
->active
)
216 free_listener(client_p
->localClient
->listener
);
217 client_p
->localClient
->listener
= 0;
220 if(client_p
->localClient
->F
!= NULL
)
222 del_from_cli_fd_hash(client_p
);
223 rb_close(client_p
->localClient
->F
);
226 if(client_p
->localClient
->passwd
)
228 memset(client_p
->localClient
->passwd
, 0,
229 strlen(client_p
->localClient
->passwd
));
230 rb_free(client_p
->localClient
->passwd
);
233 rb_free(client_p
->localClient
->challenge
);
234 rb_free(client_p
->localClient
->fullcaps
);
235 rb_free(client_p
->localClient
->opername
);
236 rb_free(client_p
->localClient
->mangledhost
);
238 ssld_decrement_clicount(client_p
->localClient
->ssl_ctl
);
240 rb_bh_free(lclient_heap
, client_p
->localClient
);
241 client_p
->localClient
= NULL
;
245 free_client(struct Client
*client_p
)
247 s_assert(NULL
!= client_p
);
248 s_assert(&me
!= client_p
);
249 free_local_client(client_p
);
250 free_pre_client(client_p
);
251 rb_bh_free(client_heap
, client_p
);
255 * check_pings - go through the local client list and check activity
256 * kill off stuff that should die
258 * inputs - NOT USED (from event)
259 * output - next time_t when check_pings() should be called again
263 * A PING can be sent to clients as necessary.
265 * Client/Server ping outs are handled.
269 * Addon from adrian. We used to call this after nextping seconds,
270 * however I've changed it to run once a second. This is only for
271 * PING timeouts, not K/etc-line checks (thanks dianora!). Having it
272 * run once a second makes life a lot easier - when a new client connects
273 * and they need a ping in 4 seconds, if nextping was set to 20 seconds
274 * we end up waiting 20 seconds. This is stupid. :-)
275 * I will optimise (hah!) check_pings() once I've finished working on
276 * tidying up other network IO evilnesses.
281 check_pings(void *notused
)
283 check_pings_list(&lclient_list
);
284 check_pings_list(&serv_list
);
285 check_unknowns_list(&unknown_list
);
291 * inputs - pointer to list to check
296 check_pings_list(rb_dlink_list
* list
)
298 char scratch
[32]; /* way too generous but... */
299 struct Client
*client_p
; /* current local client_p being examined */
300 int ping
= 0; /* ping time value from client */
301 rb_dlink_node
*ptr
, *next_ptr
;
303 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
305 client_p
= ptr
->data
;
307 if(!MyConnect(client_p
) || IsDead(client_p
))
310 ping
= get_client_ping(client_p
);
312 if(ping
< (rb_current_time() - client_p
->localClient
->lasttime
))
315 * If the client/server hasnt talked to us in 2*ping seconds
316 * and it has a ping time, then close its connection.
318 if(((rb_current_time() - client_p
->localClient
->lasttime
) >= (2 * ping
)
319 && (client_p
->flags
& FLAGS_PINGSENT
)))
321 if(IsServer(client_p
))
323 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
324 "No response from %s, closing link",
325 get_server_name(client_p
, HIDE_IP
));
327 "No response from %s, closing link",
328 log_client_name(client_p
, HIDE_IP
));
330 (void) rb_snprintf(scratch
, sizeof(scratch
),
331 "Ping timeout: %d seconds",
332 (int) (rb_current_time() - client_p
->localClient
->lasttime
));
334 exit_client(client_p
, client_p
, &me
, scratch
);
337 else if((client_p
->flags
& FLAGS_PINGSENT
) == 0)
340 * if we havent PINGed the connection and we havent
341 * heard from it in a while, PING it to make sure
344 client_p
->flags
|= FLAGS_PINGSENT
;
345 /* not nice but does the job */
346 client_p
->localClient
->lasttime
= rb_current_time() - ping
;
347 sendto_one(client_p
, "PING :%s", me
.name
);
356 * check_unknowns_list
358 * inputs - pointer to list of unknown clients
360 * side effects - unknown clients get marked for termination after n seconds
363 check_unknowns_list(rb_dlink_list
* list
)
365 rb_dlink_node
*ptr
, *next_ptr
;
366 struct Client
*client_p
;
369 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
371 client_p
= ptr
->data
;
373 if(IsDead(client_p
) || IsClosing(client_p
))
377 * Check UNKNOWN connections - if they have been in this state
378 * for > 30s, close them.
381 timeout
= IsAnyServer(client_p
) ? ConfigFileEntry
.connect_timeout
: 30;
382 if((rb_current_time() - client_p
->localClient
->firsttime
) > timeout
)
384 if(IsAnyServer(client_p
))
386 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
387 "No response from %s, closing link",
388 get_server_name(client_p
, HIDE_IP
));
390 "No response from %s, closing link",
391 log_client_name(client_p
, HIDE_IP
));
393 exit_client(client_p
, client_p
, &me
, "Connection timed out");
399 notify_banned_client(struct Client
*client_p
, struct ConfItem
*aconf
, int ban
)
401 static const char conn_closed
[] = "Connection closed";
402 static const char d_lined
[] = "D-lined";
403 static const char k_lined
[] = "K-lined";
404 const char *reason
= NULL
;
405 const char *exit_reason
= conn_closed
;
407 if(ConfigFileEntry
.kline_with_reason
&& !EmptyString(aconf
->passwd
))
409 reason
= aconf
->passwd
;
410 exit_reason
= aconf
->passwd
;
414 switch (aconf
->status
)
425 if(ban
== D_LINED
&& !IsPerson(client_p
))
426 sendto_one(client_p
, "NOTICE DLINE :*** You have been D-lined");
428 sendto_one(client_p
, form_str(ERR_YOUREBANNEDCREEP
),
429 me
.name
, client_p
->name
, reason
);
431 exit_client(client_p
, client_p
, &me
,
432 EmptyString(ConfigFileEntry
.kline_reason
) ? exit_reason
:
433 ConfigFileEntry
.kline_reason
);
440 * side effects - Check all connections for a pending k/dline against the
441 * client, exit the client if found.
444 check_banned_lines(void)
446 struct Client
*client_p
; /* current local client_p being examined */
447 struct ConfItem
*aconf
= NULL
;
448 rb_dlink_node
*ptr
, *next_ptr
;
450 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
452 client_p
= ptr
->data
;
457 /* if there is a returned struct ConfItem then kill it */
458 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
, client_p
->localClient
->ip
.ss_family
)))
460 if(aconf
->status
& CONF_EXEMPTDLINE
)
463 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
464 "DLINE active for %s",
465 get_client_name(client_p
, HIDE_IP
));
467 notify_banned_client(client_p
, aconf
, D_LINED
);
468 continue; /* and go examine next fd/client_p */
471 if(!IsPerson(client_p
))
474 if((aconf
= find_kline(client_p
)) != NULL
)
476 if(IsExemptKline(client_p
))
478 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
479 "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
480 get_client_name(client_p
, HIDE_IP
),
481 aconf
->user
, aconf
->host
);
485 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
486 "KLINE active for %s",
487 get_client_name(client_p
, HIDE_IP
));
488 notify_banned_client(client_p
, aconf
, K_LINED
);
491 else if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
493 if(IsExemptKline(client_p
))
495 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
496 "XLINE over-ruled for %s, client is kline_exempt [%s]",
497 get_client_name(client_p
, HIDE_IP
),
502 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
503 get_client_name(client_p
, HIDE_IP
));
505 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
510 /* also check the unknowns list for new dlines */
511 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
513 client_p
= ptr
->data
;
515 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)))
517 if(aconf
->status
& CONF_EXEMPTDLINE
)
520 notify_banned_client(client_p
, aconf
, D_LINED
);
526 /* check_klines_event()
530 * side effects - check_klines() is called, kline_queued unset
533 check_klines_event(void *unused
)
543 * side effects - all clients will be checked for klines
548 struct Client
*client_p
;
549 struct ConfItem
*aconf
;
551 rb_dlink_node
*next_ptr
;
553 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
555 client_p
= ptr
->data
;
557 if(IsMe(client_p
) || !IsPerson(client_p
))
560 if((aconf
= find_kline(client_p
)) != NULL
)
562 if(IsExemptKline(client_p
))
564 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
565 "KLINE over-ruled for %s, client is kline_exempt",
566 get_client_name(client_p
, HIDE_IP
));
570 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
571 "KLINE active for %s",
572 get_client_name(client_p
, HIDE_IP
));
574 notify_banned_client(client_p
, aconf
, K_LINED
);
584 * side effects - all clients will be checked for dlines
589 struct Client
*client_p
;
590 struct ConfItem
*aconf
;
592 rb_dlink_node
*next_ptr
;
594 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
596 client_p
= ptr
->data
;
601 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
603 if(aconf
->status
& CONF_EXEMPTDLINE
)
606 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
607 "DLINE active for %s",
608 get_client_name(client_p
, HIDE_IP
));
610 notify_banned_client(client_p
, aconf
, D_LINED
);
615 /* dlines need to be checked against unknowns too */
616 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
618 client_p
= ptr
->data
;
620 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
,client_p
->localClient
->ip
.ss_family
)) != NULL
)
622 if(aconf
->status
& CONF_EXEMPTDLINE
)
625 notify_banned_client(client_p
, aconf
, D_LINED
);
634 * side effects - all clients will be checked for xlines
639 struct Client
*client_p
;
640 struct ConfItem
*aconf
;
642 rb_dlink_node
*next_ptr
;
644 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
646 client_p
= ptr
->data
;
648 if(IsMe(client_p
) || !IsPerson(client_p
))
651 if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
653 if(IsExemptKline(client_p
))
655 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
656 "XLINE over-ruled for %s, client is kline_exempt",
657 get_client_name(client_p
, HIDE_IP
));
661 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
662 get_client_name(client_p
, HIDE_IP
));
664 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
671 * update_client_exit_stats
673 * input - pointer to client
678 update_client_exit_stats(struct Client
*client_p
)
680 if(IsServer(client_p
))
682 sendto_realops_snomask(SNO_EXTERNAL
, L_ALL
,
683 "Server %s split from %s",
684 client_p
->name
, client_p
->servptr
->name
);
685 if(HasSentEob(client_p
))
688 else if(IsClient(client_p
))
693 if(IsInvisible(client_p
))
697 if(splitchecking
&& !splitmode
)
698 check_splitmode(NULL
);
702 * release_client_state
704 * input - pointer to client to release
709 release_client_state(struct Client
*client_p
)
711 if(client_p
->user
!= NULL
)
713 free_user(client_p
->user
, client_p
); /* try this here */
717 if(client_p
->serv
->user
!= NULL
)
718 free_user(client_p
->serv
->user
, client_p
);
719 if(client_p
->serv
->fullcaps
)
720 rb_free(client_p
->serv
->fullcaps
);
721 rb_free(client_p
->serv
);
726 * remove_client_from_list
727 * inputs - point to client to remove
729 * side effects - taken the code from ExitOneClient() for this
730 * and placed it here. - avalon
733 remove_client_from_list(struct Client
*client_p
)
735 s_assert(NULL
!= client_p
);
740 /* A client made with make_client()
741 * is on the unknown_list until removed.
742 * If it =does= happen to exit before its removed from that list
743 * and its =not= on the global_client_list, it will core here.
744 * short circuit that case now -db
746 if(client_p
->node
.prev
== NULL
&& client_p
->node
.next
== NULL
)
749 rb_dlinkDelete(&client_p
->node
, &global_client_list
);
751 update_client_exit_stats(client_p
);
756 * find_person - find person by (nick)name.
757 * inputs - pointer to name
758 * output - return client pointer
762 find_person(const char *name
)
764 struct Client
*c2ptr
;
766 c2ptr
= find_client(name
);
768 if(c2ptr
&& IsPerson(c2ptr
))
774 find_named_person(const char *name
)
776 struct Client
*c2ptr
;
778 c2ptr
= find_named_client(name
);
780 if(c2ptr
&& IsPerson(c2ptr
))
787 * find_chasing - find the client structure for a nick name (user)
788 * using history mechanism if necessary. If the client is not found,
789 * an error message (NO SUCH NICK) is generated. If the client was found
790 * through the history, chasing will be 1 and otherwise 0.
793 find_chasing(struct Client
*source_p
, const char *user
, int *chasing
)
797 if(MyClient(source_p
))
798 who
= find_named_person(user
);
800 who
= find_person(user
);
805 if(who
|| IsDigit(*user
))
808 if(!(who
= get_history(user
, (long) KILLCHASETIMELIMIT
)))
810 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
811 form_str(ERR_NOSUCHNICK
), user
);
820 * get_client_name - Return the name of the client
821 * for various tracking and
822 * admin purposes. The main purpose of this function is to
823 * return the "socket host" name of the client, if that
824 * differs from the advertised name (other than case).
825 * But, this can be used to any client structure.
828 * Watch out the allocation of "nbuf", if either source_p->name
829 * or source_p->sockhost gets changed into pointers instead of
830 * directly allocated within the structure...
833 * Function return either a pointer to the structure (source_p) or
834 * to internal buffer (nbuf). *NEVER* use the returned pointer
835 * to modify what it points!!!
839 get_client_name(struct Client
*client
, int showip
)
841 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
843 s_assert(NULL
!= client
);
847 if(MyConnect(client
))
849 if(!irccmp(client
->name
, client
->host
))
852 if(ConfigFileEntry
.hide_spoof_ips
&&
853 showip
== SHOW_IP
&& IsIPSpoof(client
))
855 #ifdef HIDE_SERVERS_IPS
856 if(IsAnyServer(client
))
860 /* And finally, let's get the host information, ip or name */
864 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
865 client
->name
, client
->username
,
869 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
870 client
->name
, client
->username
);
873 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
874 client
->name
, client
->username
, client
->host
);
879 /* As pointed out by Adel Mezibra
880 * Neph|l|m@EFnet. Was missing a return here.
886 get_server_name(struct Client
*target_p
, int showip
)
888 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
893 if(!MyConnect(target_p
) || !irccmp(target_p
->name
, target_p
->host
))
894 return target_p
->name
;
896 #ifdef HIDE_SERVERS_IPS
897 if(EmptyString(target_p
->name
))
899 rb_snprintf(nbuf
, sizeof(nbuf
), "[%s@255.255.255.255]",
904 return target_p
->name
;
910 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
911 target_p
->name
, target_p
->username
,
916 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
917 target_p
->name
, target_p
->username
);
920 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
921 target_p
->name
, target_p
->username
,
930 * This version is the same as get_client_name, but doesnt contain the
931 * code that will hide IPs always. This should be used for logfiles.
934 log_client_name(struct Client
*target_p
, int showip
)
936 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
941 if(MyConnect(target_p
))
943 if(irccmp(target_p
->name
, target_p
->host
) == 0)
944 return target_p
->name
;
949 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
950 target_p
->username
, target_p
->sockhost
);
954 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
955 target_p
->name
, target_p
->username
);
958 rb_snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
959 target_p
->username
, target_p
->host
);
965 return target_p
->name
;
968 /* is_remote_connect - Returns whether a server was /connect'ed by a remote
969 * oper (send notices netwide) */
971 is_remote_connect(struct Client
*client_p
)
975 if (client_p
->serv
== NULL
)
977 oper
= find_named_person(client_p
->serv
->by
);
978 return oper
!= NULL
&& IsOper(oper
) && !MyConnect(oper
);
982 free_exited_clients(void *unused
)
984 rb_dlink_node
*ptr
, *next
;
985 struct Client
*target_p
;
987 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_list
.head
)
989 target_p
= ptr
->data
;
991 #ifdef DEBUG_EXITED_CLIENTS
993 struct abort_client
*abt
;
997 RB_DLINK_FOREACH(aptr
, abort_list
.head
)
1000 if(abt
->client
== target_p
)
1003 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1004 "On abort_list: %s stat: %u flags: %u/%u handler: %c",
1005 target_p
->name
, (unsigned int) target_p
->status
,
1006 target_p
->flags
, target_p
->flags2
, target_p
->handler
);
1007 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1008 "Please report this to the charybdis developers!");
1015 rb_dlinkDestroy(ptr
, &dead_list
);
1021 if(ptr
->data
== NULL
)
1023 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1024 "Warning: null client on dead_list!");
1025 rb_dlinkDestroy(ptr
, &dead_list
);
1028 release_client_state(target_p
);
1029 free_client(target_p
);
1030 rb_dlinkDestroy(ptr
, &dead_list
);
1033 #ifdef DEBUG_EXITED_CLIENTS
1034 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_remote_list
.head
)
1036 target_p
= ptr
->data
;
1038 if(ptr
->data
== NULL
)
1040 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1041 "Warning: null client on dead_list!");
1042 rb_dlinkDestroy(ptr
, &dead_list
);
1045 release_client_state(target_p
);
1046 free_client(target_p
);
1047 rb_dlinkDestroy(ptr
, &dead_remote_list
);
1054 ** Recursively send QUITs and SQUITs for source_p and all its dependent clients
1055 ** and servers to those servers that need them. A server needs the client
1056 ** QUITs if it can't figure them out from the SQUIT (ie pre-TS4) or if it
1057 ** isn't getting the SQUIT because of @#(*&@)# hostmasking. With TS4, once
1058 ** a link gets a SQUIT, it doesn't need any QUIT/SQUITs for clients depending
1059 ** on that one -orabidoo
1062 recurse_send_quits(struct Client
*client_p
, struct Client
*source_p
,
1063 struct Client
*to
, const char *comment1
,
1064 const char *comment
)
1066 struct Client
*target_p
;
1067 rb_dlink_node
*ptr
, *ptr_next
;
1068 /* If this server can handle quit storm (QS) removal
1069 * of dependents, just send the SQUIT
1072 if(IsCapable(to
, CAP_QS
))
1074 sendto_one(to
, "SQUIT %s :%s",
1075 get_id(source_p
, to
), comment
);
1079 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1081 target_p
= ptr
->data
;
1082 sendto_one(to
, ":%s QUIT :%s", target_p
->name
, comment1
);
1084 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1086 target_p
= ptr
->data
;
1087 recurse_send_quits(client_p
, target_p
, to
, comment1
, comment
);
1089 sendto_one(to
, "SQUIT %s :%s", source_p
->name
, comment
);
1094 ** Remove all clients that depend on source_p; assumes all (S)QUITs have
1095 ** already been sent. we make sure to exit a server's dependent clients
1096 ** and servers before the server itself; exit_one_client takes care of
1097 ** actually removing things off llists. tweaked from +CSr31 -orabidoo
1100 * added sanity test code.... source_p->serv might be NULL...
1103 recurse_remove_clients(struct Client
*source_p
, const char *comment
)
1105 struct Client
*target_p
;
1106 rb_dlink_node
*ptr
, *ptr_next
;
1111 if(source_p
->serv
== NULL
) /* oooops. uh this is actually a major bug */
1114 /* this is very ugly, but it saves cpu :P */
1115 if(ConfigFileEntry
.nick_delay
> 0)
1117 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1119 target_p
= ptr
->data
;
1120 target_p
->flags
|= FLAGS_KILLED
;
1121 add_nd_entry(target_p
->name
);
1123 if(!IsDead(target_p
) && !IsClosing(target_p
))
1124 exit_remote_client(NULL
, target_p
, &me
, comment
);
1129 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1131 target_p
= ptr
->data
;
1132 target_p
->flags
|= FLAGS_KILLED
;
1134 if(!IsDead(target_p
) && !IsClosing(target_p
))
1135 exit_remote_client(NULL
, target_p
, &me
, comment
);
1139 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1141 target_p
= ptr
->data
;
1142 recurse_remove_clients(target_p
, comment
);
1143 qs_server(NULL
, target_p
, &me
, comment
);
1148 ** Remove *everything* that depends on source_p, from all lists, and sending
1149 ** all necessary QUITs and SQUITs. source_p itself is still on the lists,
1150 ** and its SQUITs have been sent except for the upstream one -orabidoo
1153 remove_dependents(struct Client
*client_p
,
1154 struct Client
*source_p
,
1155 struct Client
*from
, const char *comment
, const char *comment1
)
1158 rb_dlink_node
*ptr
, *next
;
1160 RB_DLINK_FOREACH_SAFE(ptr
, next
, serv_list
.head
)
1164 if(IsMe(to
) || to
== source_p
->from
||
1165 (to
== client_p
&& IsCapable(to
, CAP_QS
)))
1168 recurse_send_quits(client_p
, source_p
, to
, comment1
, comment
);
1171 recurse_remove_clients(source_p
, comment1
);
1175 exit_aborted_clients(void *unused
)
1177 struct abort_client
*abt
;
1178 rb_dlink_node
*ptr
, *next
;
1179 RB_DLINK_FOREACH_SAFE(ptr
, next
, abort_list
.head
)
1183 #ifdef DEBUG_EXITED_CLIENTS
1185 if(rb_dlinkFind(abt
->client
, &dead_list
))
1188 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1189 "On dead_list: %s stat: %u flags: %u/%u handler: %c",
1190 abt
->client
->name
, (unsigned int) abt
->client
->status
,
1191 abt
->client
->flags
, abt
->client
->flags2
, abt
->client
->handler
);
1192 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1193 "Please report this to the charybdis developers!");
1199 s_assert(*((unsigned long*)abt
->client
) != 0xdeadbeef); /* This is lame but its a debug thing */
1200 rb_dlinkDelete(ptr
, &abort_list
);
1202 if(IsAnyServer(abt
->client
))
1203 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1204 "Closing link to %s: %s",
1205 get_server_name(abt
->client
, HIDE_IP
), abt
->notice
);
1207 /* its no longer on abort list - we *must* remove
1208 * FLAGS_CLOSING otherwise exit_client() will not run --fl
1210 abt
->client
->flags
&= ~FLAGS_CLOSING
;
1211 exit_client(abt
->client
, abt
->client
, &me
, abt
->notice
);
1218 * dead_link - Adds client to a list of clients that need an exit_client()
1222 dead_link(struct Client
*client_p
)
1224 struct abort_client
*abt
;
1226 s_assert(!IsMe(client_p
));
1227 if(IsDead(client_p
) || IsClosing(client_p
) || IsMe(client_p
))
1230 abt
= (struct abort_client
*) rb_malloc(sizeof(struct abort_client
));
1232 if(client_p
->flags
& FLAGS_SENDQEX
)
1233 rb_strlcpy(abt
->notice
, "Max SendQ exceeded", sizeof(abt
->notice
));
1235 rb_snprintf(abt
->notice
, sizeof(abt
->notice
), "Write error: %s", strerror(errno
));
1237 abt
->client
= client_p
;
1238 SetIOError(client_p
);
1240 SetClosing(client_p
);
1241 rb_dlinkAdd(abt
, &abt
->node
, &abort_list
);
1245 /* This does the remove of the user from channels..local or remote */
1247 exit_generic_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1248 const char *comment
)
1250 rb_dlink_node
*ptr
, *next_ptr
;
1252 if(IsOper(source_p
))
1253 rb_dlinkFindDestroy(source_p
, &oper_list
);
1255 sendto_common_channels_local(source_p
, ":%s!%s@%s QUIT :%s",
1257 source_p
->username
, source_p
->host
, comment
);
1259 remove_user_from_channels(source_p
);
1261 /* Should not be in any channels now */
1262 s_assert(source_p
->user
->channel
.head
== NULL
);
1264 /* Clean up invitefield */
1265 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, source_p
->user
->invited
.head
)
1267 del_invite(ptr
->data
, source_p
);
1270 /* Clean up allow lists */
1271 del_all_accepts(source_p
);
1273 add_history(source_p
, 0);
1274 off_history(source_p
);
1276 monitor_signoff(source_p
);
1278 if(has_id(source_p
))
1279 del_from_id_hash(source_p
->id
, source_p
);
1281 del_from_hostname_hash(source_p
->orighost
, source_p
);
1282 del_from_client_hash(source_p
->name
, source_p
);
1283 remove_client_from_list(source_p
);
1287 * Assumes IsPerson(source_p) && !MyConnect(source_p)
1291 exit_remote_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1292 const char *comment
)
1294 exit_generic_client(client_p
, source_p
, from
, comment
);
1296 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1298 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->users
);
1301 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1303 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1304 ":%s QUIT :%s", use_id(source_p
), comment
);
1308 #ifdef DEBUG_EXITED_CLIENTS
1309 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1311 rb_dlinkAddAlloc(source_p
, &dead_list
);
1313 return(CLIENT_EXITED
);
1317 * This assumes IsUnknown(source_p) == TRUE and MyConnect(source_p) == TRUE
1321 exit_unknown_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1322 const char *comment
)
1324 delete_auth_queries(source_p
);
1325 if (source_p
->localClient
->dnsquery
)
1327 delete_resolver_queries(source_p
->localClient
->dnsquery
);
1328 rb_free(source_p
->localClient
->dnsquery
);
1330 del_unknown_ip(source_p
);
1331 rb_dlinkDelete(&source_p
->localClient
->tnode
, &unknown_list
);
1333 if(!IsIOError(source_p
))
1334 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)",
1335 source_p
->user
!= NULL
? source_p
->host
: "127.0.0.1",
1338 close_connection(source_p
);
1340 if(has_id(source_p
))
1341 del_from_id_hash(source_p
->id
, source_p
);
1343 del_from_hostname_hash(source_p
->host
, source_p
);
1344 del_from_client_hash(source_p
->name
, source_p
);
1345 remove_client_from_list(source_p
);
1347 rb_dlinkAddAlloc(source_p
, &dead_list
);
1349 /* Note that we don't need to add unknowns to the dead_list */
1350 return(CLIENT_EXITED
);
1354 exit_remote_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1355 const char *comment
)
1357 static char comment1
[(HOSTLEN
*2)+2];
1358 static char newcomment
[BUFSIZE
];
1359 struct Client
*target_p
;
1361 if(ConfigServerHide
.flatten_links
)
1362 strcpy(comment1
, "*.net *.split");
1365 strcpy(comment1
, source_p
->servptr
->name
);
1366 strcat(comment1
, " ");
1367 strcat(comment1
, source_p
->name
);
1370 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1371 from
->name
, comment
);
1373 if(source_p
->serv
!= NULL
)
1374 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1376 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1377 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1381 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1382 target_p
= source_p
->from
;
1384 if(target_p
!= NULL
&& IsServer(target_p
) && target_p
!= client_p
&&
1385 !IsMe(target_p
) && (source_p
->flags
& FLAGS_KILLED
) == 0)
1387 sendto_one(target_p
, ":%s SQUIT %s :%s",
1388 get_id(from
, target_p
), get_id(source_p
, target_p
),
1392 if(has_id(source_p
))
1393 del_from_id_hash(source_p
->id
, source_p
);
1395 del_from_client_hash(source_p
->name
, source_p
);
1396 remove_client_from_list(source_p
);
1397 scache_split(source_p
->serv
->nameinfo
);
1400 #ifdef DEBUG_EXITED_CLIENTS
1401 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1403 rb_dlinkAddAlloc(source_p
, &dead_list
);
1409 qs_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1410 const char *comment
)
1412 struct Client
*target_p
;
1414 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1415 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1419 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1420 target_p
= source_p
->from
;
1422 if(has_id(source_p
))
1423 del_from_id_hash(source_p
->id
, source_p
);
1425 del_from_client_hash(source_p
->name
, source_p
);
1426 remove_client_from_list(source_p
);
1427 scache_split(source_p
->serv
->nameinfo
);
1430 rb_dlinkAddAlloc(source_p
, &dead_list
);
1435 exit_local_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1436 const char *comment
)
1438 static char comment1
[(HOSTLEN
*2)+2];
1439 static char newcomment
[BUFSIZE
];
1440 unsigned int sendk
, recvk
;
1442 rb_dlinkDelete(&source_p
->localClient
->tnode
, &serv_list
);
1443 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1445 unset_chcap_usage_counts(source_p
);
1446 sendk
= source_p
->localClient
->sendK
;
1447 recvk
= source_p
->localClient
->receiveK
;
1449 /* Always show source here, so the server notices show
1450 * which side initiated the split -- jilles
1452 rb_snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1453 from
== source_p
? me
.name
: from
->name
, comment
);
1454 if (!IsIOError(source_p
))
1455 sendto_one(source_p
, "SQUIT %s :%s", use_id(source_p
),
1457 if(client_p
!= NULL
&& source_p
!= client_p
&& !IsIOError(source_p
))
1459 sendto_one(source_p
, "ERROR :Closing Link: 127.0.0.1 %s (%s)",
1460 source_p
->name
, comment
);
1463 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1464 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1469 close_connection(source_p
);
1471 if(ConfigServerHide
.flatten_links
)
1472 strcpy(comment1
, "*.net *.split");
1475 strcpy(comment1
, source_p
->servptr
->name
);
1476 strcat(comment1
, " ");
1477 strcat(comment1
, source_p
->name
);
1480 if(source_p
->serv
!= NULL
)
1481 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1483 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "%s was connected"
1484 " for %ld seconds. %d/%d sendK/recvK.",
1485 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1487 ilog(L_SERVER
, "%s was connected for %ld seconds. %d/%d sendK/recvK.",
1488 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1490 if(has_id(source_p
))
1491 del_from_id_hash(source_p
->id
, source_p
);
1493 del_from_client_hash(source_p
->name
, source_p
);
1494 remove_client_from_list(source_p
);
1495 scache_split(source_p
->serv
->nameinfo
);
1498 rb_dlinkAddAlloc(source_p
, &dead_list
);
1504 * This assumes IsPerson(source_p) == TRUE && MyConnect(source_p) == TRUE
1508 exit_local_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1509 const char *comment
)
1511 unsigned long on_for
;
1514 exit_generic_client(client_p
, source_p
, from
, comment
);
1515 clear_monitor(source_p
);
1517 s_assert(IsPerson(source_p
));
1518 rb_dlinkDelete(&source_p
->localClient
->tnode
, &lclient_list
);
1519 rb_dlinkDelete(&source_p
->lnode
, &me
.serv
->users
);
1521 if(IsOper(source_p
))
1522 rb_dlinkFindDestroy(source_p
, &local_oper_list
);
1524 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
1525 "Client exiting: %s (%s@%s) [%s] [%s]",
1527 source_p
->username
, source_p
->host
, comment
,
1528 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255");
1530 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
1531 "CLIEXIT %s %s %s %s 0 %s",
1532 source_p
->name
, source_p
->username
, source_p
->host
,
1533 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255",
1536 on_for
= rb_current_time() - source_p
->localClient
->firsttime
;
1538 ilog(L_USER
, "%s (%3lu:%02lu:%02lu): %s!%s@%s %d/%d",
1539 rb_ctime(rb_current_time(), tbuf
, sizeof(tbuf
)), on_for
/ 3600,
1540 (on_for
% 3600) / 60, on_for
% 60,
1541 source_p
->name
, source_p
->username
, source_p
->host
,
1542 source_p
->localClient
->sendK
, source_p
->localClient
->receiveK
);
1544 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)", source_p
->host
, comment
);
1545 close_connection(source_p
);
1547 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1549 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1550 ":%s QUIT :%s", use_id(source_p
), comment
);
1554 rb_dlinkAddAlloc(source_p
, &dead_list
);
1555 return(CLIENT_EXITED
);
1560 ** exit_client - This is old "m_bye". Name changed, because this is not a
1561 ** protocol function, but a general server utility function.
1563 ** This function exits a client of *any* type (user, server, etc)
1564 ** from this server. Also, this generates all necessary prototol
1565 ** messages that this exit may cause.
1567 ** 1) If the client is a local client, then this implicitly
1568 ** exits all other clients depending on this connection (e.g.
1569 ** remote clients having 'from'-field that points to this.
1571 ** 2) If the client is a remote client, then only this is exited.
1573 ** For convenience, this function returns a suitable value for
1574 ** m_function return value:
1576 ** CLIENT_EXITED if (client_p == source_p)
1577 ** 0 if (client_p != source_p)
1580 exit_client(struct Client
*client_p
, /* The local client originating the
1581 * exit or NULL, if this exit is
1582 * generated by this server for
1584 * This will not get any of the
1585 * generated messages. */
1586 struct Client
*source_p
, /* Client exiting */
1587 struct Client
*from
, /* Client firing off this Exit,
1589 const char *comment
/* Reason for the exit */
1592 hook_data_client_exit hdata
;
1593 if(IsClosing(source_p
))
1596 /* note, this HAS to be here, when we exit a client we attempt to
1597 * send them data, if this generates a write error we must *not* add
1598 * them to the abort list --fl
1600 SetClosing(source_p
);
1602 hdata
.local_link
= client_p
;
1603 hdata
.target
= source_p
;
1605 hdata
.comment
= comment
;
1606 call_hook(h_client_exit
, &hdata
);
1608 if(MyConnect(source_p
))
1610 /* Local clients of various types */
1611 if(IsPerson(source_p
))
1612 return exit_local_client(client_p
, source_p
, from
, comment
);
1613 else if(IsServer(source_p
))
1614 return exit_local_server(client_p
, source_p
, from
, comment
);
1615 /* IsUnknown || IsConnecting || IsHandShake */
1616 else if(!IsReject(source_p
))
1617 return exit_unknown_client(client_p
, source_p
, from
, comment
);
1622 if(IsPerson(source_p
))
1623 return exit_remote_client(client_p
, source_p
, from
, comment
);
1624 else if(IsServer(source_p
))
1625 return exit_remote_server(client_p
, source_p
, from
, comment
);
1632 * Count up local client memory
1635 /* XXX one common Client list now */
1637 count_local_client_memory(size_t * count
, size_t * local_client_memory_used
)
1640 rb_bh_usage(lclient_heap
, count
, NULL
, &lusage
, NULL
);
1641 *local_client_memory_used
= lusage
+ (*count
* (sizeof(void *) + sizeof(struct Client
)));
1645 * Count up remote client memory
1648 count_remote_client_memory(size_t * count
, size_t * remote_client_memory_used
)
1650 size_t lcount
, rcount
;
1651 rb_bh_usage(lclient_heap
, &lcount
, NULL
, NULL
, NULL
);
1652 rb_bh_usage(client_heap
, &rcount
, NULL
, NULL
, NULL
);
1653 *count
= rcount
- lcount
;
1654 *remote_client_memory_used
= *count
* (sizeof(void *) + sizeof(struct Client
));
1659 * accept processing, this adds a form of "caller ID" to ircd
1661 * If a client puts themselves into "caller ID only" mode,
1662 * only clients that match a client pointer they have put on
1663 * the accept list will be allowed to message them.
1665 * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1667 * [target.allow_list] -> [ source1 ] -> [source2 ]
1669 * i.e. a target will have a link list of source pointers it will allow
1670 * each source client then has a back pointer pointing back
1671 * to the client that has it on its accept list.
1672 * This allows for exit_one_client to remove these now bogus entries
1673 * from any client having an accept on them.
1678 * inputs - pointer to exiting client
1680 * side effects - Walk through given clients allow_list and on_allow_list
1681 * remove all references to this client
1684 del_all_accepts(struct Client
*client_p
)
1687 rb_dlink_node
*next_ptr
;
1688 struct Client
*target_p
;
1690 if(MyClient(client_p
) && client_p
->localClient
->allow_list
.head
)
1692 /* clear this clients accept list, and remove them from
1693 * everyones on_accept_list
1695 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->localClient
->allow_list
.head
)
1697 target_p
= ptr
->data
;
1698 rb_dlinkFindDestroy(client_p
, &target_p
->on_allow_list
);
1699 rb_dlinkDestroy(ptr
, &client_p
->localClient
->allow_list
);
1703 /* remove this client from everyones accept list */
1704 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
1706 target_p
= ptr
->data
;
1707 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
1708 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
1713 * show_ip() - asks if the true IP shoudl be shown when source is
1714 * askin for info about target
1716 * Inputs - source_p who is asking
1717 * - target_p who do we want the info on
1718 * Output - returns 1 if clear IP can be showed, otherwise 0
1719 * Side Effects - none
1723 show_ip(struct Client
*source_p
, struct Client
*target_p
)
1725 if(IsAnyServer(target_p
))
1727 #ifndef HIDE_SERVERS_IPS
1728 if(source_p
== NULL
|| IsOper(source_p
))
1733 else if(IsIPSpoof(target_p
))
1735 /* source == NULL indicates message is being sent
1738 if(!ConfigFileEntry
.hide_spoof_ips
&&
1739 (source_p
== NULL
|| MyOper(source_p
)))
1743 else if(IsDynSpoof(target_p
) && (source_p
!= NULL
&& !IsOper(source_p
)))
1750 show_ip_conf(struct ConfItem
*aconf
, struct Client
*source_p
)
1752 if(IsConfDoSpoofIp(aconf
))
1754 if(!ConfigFileEntry
.hide_spoof_ips
&& MyOper(source_p
))
1769 * side effects - Creates a block heap for struct Users
1772 static rb_bh
*user_heap
;
1776 user_heap
= rb_bh_create(sizeof(struct User
), USER_HEAP_SIZE
, "user_heap");
1784 * inputs - pointer to client struct
1785 * output - pointer to struct User
1786 * side effects - add's an User information block to a client
1787 * if it was not previously allocated.
1790 make_user(struct Client
*client_p
)
1794 user
= client_p
->user
;
1797 user
= (struct User
*) rb_bh_alloc(user_heap
);
1799 client_p
->user
= user
;
1807 * inputs - pointer to client struct
1808 * output - pointer to server_t
1809 * side effects - add's an Server information block to a client
1810 * if it was not previously allocated.
1813 make_server(struct Client
*client_p
)
1815 server_t
*serv
= client_p
->serv
;
1819 serv
= (server_t
*) rb_malloc(sizeof(server_t
));
1820 client_p
->serv
= serv
;
1822 return client_p
->serv
;
1828 * inputs - pointer to user struct
1829 * - pointer to client struct
1831 * side effects - Decrease user reference count by one and release block,
1832 * if count reaches 0
1835 free_user(struct User
*user
, struct Client
*client_p
)
1837 free_away(client_p
);
1839 if(--user
->refcnt
<= 0)
1842 rb_free((char *) user
->away
);
1846 if(user
->refcnt
< 0 || user
->invited
.head
|| user
->channel
.head
)
1848 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1849 "* %#lx user (%s!%s@%s) %#lx %#lx %#lx %lu %d *",
1850 (unsigned long) client_p
,
1851 client_p
? client_p
->
1855 (unsigned long) user
,
1856 (unsigned long) user
->invited
.head
,
1857 (unsigned long) user
->channel
.head
,
1858 rb_dlink_list_length(&user
->channel
),
1860 s_assert(!user
->refcnt
);
1861 s_assert(!user
->invited
.head
);
1862 s_assert(!user
->channel
.head
);
1865 rb_bh_free(user_heap
, user
);
1870 allocate_away(struct Client
*client_p
)
1872 if(client_p
->user
->away
== NULL
)
1873 client_p
->user
->away
= rb_bh_alloc(away_heap
);
1878 free_away(struct Client
*client_p
)
1880 if(client_p
->user
!= NULL
&& client_p
->user
->away
!= NULL
) {
1881 rb_bh_free(away_heap
, client_p
->user
->away
);
1882 client_p
->user
->away
= NULL
;
1891 for(i
= 0; i
< 3; i
++)
1892 current_uid
[i
] = me
.id
[i
];
1894 for(i
= 3; i
< 9; i
++)
1895 current_uid
[i
] = 'A';
1897 current_uid
[9] = '\0';
1906 for(i
= 8; i
> 3; i
--)
1908 if(current_uid
[i
] == 'Z')
1910 current_uid
[i
] = '0';
1913 else if(current_uid
[i
] != '9')
1919 current_uid
[i
] = 'A';
1922 /* if this next if() triggers, we're fucked. */
1923 if(current_uid
[3] == 'Z')
1925 current_uid
[i
] = 'A';
1936 * Close the physical connection. This function must make
1937 * MyConnect(client_p) == FALSE, and set client_p->from == NULL.
1940 close_connection(struct Client
*client_p
)
1942 s_assert(client_p
!= NULL
);
1943 if(client_p
== NULL
)
1946 s_assert(MyConnect(client_p
));
1947 if(!MyConnect(client_p
))
1950 if(IsServer(client_p
))
1952 struct server_conf
*server_p
;
1954 ServerStats
.is_sv
++;
1955 ServerStats
.is_sbs
+= client_p
->localClient
->sendB
;
1956 ServerStats
.is_sbr
+= client_p
->localClient
->receiveB
;
1957 ServerStats
.is_sti
+= rb_current_time() - client_p
->localClient
->firsttime
;
1960 * If the connection has been up for a long amount of time, schedule
1961 * a 'quick' reconnect, else reset the next-connect cycle.
1963 if((server_p
= find_server_conf(client_p
->name
)) != NULL
)
1966 * Reschedule a faster reconnect, if this was a automatically
1967 * connected configuration entry. (Note that if we have had
1968 * a rehash in between, the status has been changed to
1969 * CONF_ILLEGAL). But only do this if it was a "good" link.
1971 server_p
->hold
= time(NULL
);
1973 (server_p
->hold
- client_p
->localClient
->lasttime
>
1974 HANGONGOODLINK
) ? HANGONRETRYDELAY
: ConFreq(server_p
->class);
1978 else if(IsClient(client_p
))
1980 ServerStats
.is_cl
++;
1981 ServerStats
.is_cbs
+= client_p
->localClient
->sendB
;
1982 ServerStats
.is_cbr
+= client_p
->localClient
->receiveB
;
1983 ServerStats
.is_cti
+= rb_current_time() - client_p
->localClient
->firsttime
;
1986 ServerStats
.is_ni
++;
1988 if(client_p
->localClient
->F
!= NULL
)
1990 /* attempt to flush any pending dbufs. Evil, but .. -- adrian */
1991 if(!IsIOError(client_p
))
1992 send_queued(client_p
);
1994 del_from_cli_fd_hash(client_p
);
1995 rb_close(client_p
->localClient
->F
);
1996 client_p
->localClient
->F
= NULL
;
1999 rb_linebuf_donebuf(&client_p
->localClient
->buf_sendq
);
2000 rb_linebuf_donebuf(&client_p
->localClient
->buf_recvq
);
2001 detach_conf(client_p
);
2003 /* XXX shouldnt really be done here. */
2004 detach_server_conf(client_p
);
2006 client_p
->from
= NULL
; /* ...this should catch them! >:) --msa */
2007 ClearMyConnect(client_p
);
2008 SetIOError(client_p
);
2014 error_exit_client(struct Client
*client_p
, int error
)
2017 * ...hmm, with non-blocking sockets we might get
2018 * here from quite valid reasons, although.. why
2019 * would select report "data available" when there
2020 * wasn't... so, this must be an error anyway... --msa
2021 * actually, EOF occurs when read() returns 0 and
2022 * in due course, select() returns that fd as ready
2023 * for reading even though it ends up being an EOF. -avalon
2026 int current_error
= rb_get_sockerr(client_p
->localClient
->F
);
2028 SetIOError(client_p
);
2030 if(IsServer(client_p
) || IsHandshake(client_p
))
2034 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2035 "Server %s closed the connection",
2036 get_server_name(client_p
, SHOW_IP
));
2038 ilog(L_SERVER
, "Server %s closed the connection",
2039 log_client_name(client_p
, SHOW_IP
));
2043 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2044 "Lost connection to %s: %s",
2045 client_p
->name
, strerror(current_error
));
2046 ilog(L_SERVER
, "Lost connection to %s: %s",
2047 log_client_name(client_p
, SHOW_IP
), strerror(current_error
));
2052 rb_strlcpy(errmsg
, "Remote host closed the connection", sizeof(errmsg
));
2054 rb_snprintf(errmsg
, sizeof(errmsg
), "Read error: %s", strerror(current_error
));
2056 exit_client(client_p
, client_p
, &me
, errmsg
);