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
37 #include "s_newconf.h"
50 #include "blacklist.h"
53 #include "rb_dictionary.h"
57 #define DEBUG_EXITED_CLIENTS
59 static void check_pings_list(rb_dlink_list
* list
);
60 static void check_unknowns_list(rb_dlink_list
* list
);
61 static void free_exited_clients(void *unused
);
62 static void exit_aborted_clients(void *unused
);
64 static int exit_remote_client(struct Client
*, struct Client
*, struct Client
*,const char *);
65 static int exit_remote_server(struct Client
*, struct Client
*, struct Client
*,const char *);
66 static int exit_local_client(struct Client
*, struct Client
*, struct Client
*,const char *);
67 static int exit_unknown_client(struct Client
*, struct Client
*, struct Client
*,const char *);
68 static int exit_local_server(struct Client
*, struct Client
*, struct Client
*,const char *);
69 static int qs_server(struct Client
*, struct Client
*, struct Client
*, const char *comment
);
71 static EVH check_pings
;
73 static rb_bh
*client_heap
= NULL
;
74 static rb_bh
*lclient_heap
= NULL
;
75 static rb_bh
*pclient_heap
= NULL
;
76 static rb_bh
*user_heap
= NULL
;
77 static rb_bh
*away_heap
= NULL
;
78 static char current_uid
[IDLEN
];
79 static int32_t current_connid
= 0;
81 rb_dictionary
*nd_dict
= NULL
;
89 rb_dlink_list dead_list
;
90 #ifdef DEBUG_EXITED_CLIENTS
91 static rb_dlink_list dead_remote_list
;
97 struct Client
*client
;
98 char notice
[REASONLEN
];
101 static rb_dlink_list abort_list
;
109 * side effects - initialize client free memory
115 * start off the check ping event .. -- adrian
116 * Every 30 seconds is plenty -- db
118 client_heap
= rb_bh_create(sizeof(struct Client
), CLIENT_HEAP_SIZE
, "client_heap");
119 lclient_heap
= rb_bh_create(sizeof(struct LocalUser
), LCLIENT_HEAP_SIZE
, "lclient_heap");
120 pclient_heap
= rb_bh_create(sizeof(struct PreClient
), PCLIENT_HEAP_SIZE
, "pclient_heap");
121 user_heap
= rb_bh_create(sizeof(struct User
), USER_HEAP_SIZE
, "user_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
= rb_dictionary_create("nickdelay", 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
= 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 if(current_connid
+1 == 0)
166 client_p
->localClient
->connid
= ++current_connid
;
168 if(current_connid
+1 == 0)
171 client_p
->localClient
->zconnid
= ++current_connid
;
172 add_to_cli_connid_hash(client_p
);
174 client_p
->preClient
= rb_bh_alloc(pclient_heap
);
176 /* as good a place as any... */
177 rb_dlinkAdd(client_p
, &client_p
->localClient
->tnode
, &unknown_list
);
180 { /* from is not NULL */
181 client_p
->localClient
= NULL
;
182 client_p
->preClient
= NULL
;
183 client_p
->from
= from
; /* 'from' of local client is self! */
186 SetUnknown(client_p
);
187 strcpy(client_p
->username
, "unknown");
193 free_pre_client(struct Client
*client_p
)
195 struct Blacklist
*blptr
;
197 s_assert(NULL
!= client_p
);
199 if(client_p
->preClient
== NULL
)
202 blptr
= client_p
->preClient
->dnsbl_listed
;
204 unref_blacklist(blptr
);
205 s_assert(rb_dlink_list_length(&client_p
->preClient
->dnsbl_queries
) == 0);
207 rb_bh_free(pclient_heap
, client_p
->preClient
);
208 client_p
->preClient
= NULL
;
212 free_local_client(struct Client
*client_p
)
214 s_assert(NULL
!= client_p
);
215 s_assert(&me
!= client_p
);
217 if(client_p
->localClient
== NULL
)
221 * clean up extra sockets from P-lines which have been discarded.
223 if(client_p
->localClient
->listener
)
225 s_assert(0 < client_p
->localClient
->listener
->ref_count
);
226 if(0 == --client_p
->localClient
->listener
->ref_count
227 && !client_p
->localClient
->listener
->active
)
228 free_listener(client_p
->localClient
->listener
);
229 client_p
->localClient
->listener
= 0;
232 del_from_cli_connid_hash(client_p
);
233 if(client_p
->localClient
->F
!= NULL
)
235 rb_close(client_p
->localClient
->F
);
238 if(client_p
->localClient
->passwd
)
240 memset(client_p
->localClient
->passwd
, 0,
241 strlen(client_p
->localClient
->passwd
));
242 rb_free(client_p
->localClient
->passwd
);
245 rb_free(client_p
->localClient
->auth_user
);
246 rb_free(client_p
->localClient
->challenge
);
247 rb_free(client_p
->localClient
->fullcaps
);
248 rb_free(client_p
->localClient
->opername
);
249 rb_free(client_p
->localClient
->mangledhost
);
250 if (client_p
->localClient
->privset
)
251 privilegeset_unref(client_p
->localClient
->privset
);
254 ssld_decrement_clicount(client_p
->localClient
->ssl_ctl
);
256 if(IsCapable(client_p
, CAP_ZIP
))
257 ssld_decrement_clicount(client_p
->localClient
->z_ctl
);
259 rb_bh_free(lclient_heap
, client_p
->localClient
);
260 client_p
->localClient
= NULL
;
264 free_client(struct Client
*client_p
)
266 s_assert(NULL
!= client_p
);
267 s_assert(&me
!= client_p
);
268 free_local_client(client_p
);
269 free_pre_client(client_p
);
270 rb_free(client_p
->certfp
);
271 rb_bh_free(client_heap
, client_p
);
275 * check_pings - go through the local client list and check activity
276 * kill off stuff that should die
278 * inputs - NOT USED (from event)
279 * output - next time_t when check_pings() should be called again
283 * A PING can be sent to clients as necessary.
285 * Client/Server ping outs are handled.
289 * Addon from adrian. We used to call this after nextping seconds,
290 * however I've changed it to run once a second. This is only for
291 * PING timeouts, not K/etc-line checks (thanks dianora!). Having it
292 * run once a second makes life a lot easier - when a new client connects
293 * and they need a ping in 4 seconds, if nextping was set to 20 seconds
294 * we end up waiting 20 seconds. This is stupid. :-)
295 * I will optimise (hah!) check_pings() once I've finished working on
296 * tidying up other network IO evilnesses.
301 check_pings(void *notused
)
303 check_pings_list(&lclient_list
);
304 check_pings_list(&serv_list
);
305 check_unknowns_list(&unknown_list
);
311 * inputs - pointer to list to check
316 check_pings_list(rb_dlink_list
* list
)
318 char scratch
[32]; /* way too generous but... */
319 struct Client
*client_p
; /* current local client_p being examined */
320 int ping
= 0; /* ping time value from client */
321 rb_dlink_node
*ptr
, *next_ptr
;
323 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
325 client_p
= ptr
->data
;
327 if(!MyConnect(client_p
) || IsDead(client_p
))
330 ping
= get_client_ping(client_p
);
332 if(ping
< (rb_current_time() - client_p
->localClient
->lasttime
))
335 * If the client/server hasnt talked to us in 2*ping seconds
336 * and it has a ping time, then close its connection.
338 if(((rb_current_time() - client_p
->localClient
->lasttime
) >= (2 * ping
)
339 && (client_p
->flags
& FLAGS_PINGSENT
)))
341 if(IsServer(client_p
))
343 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
344 "No response from %s, closing link",
347 "No response from %s, closing link",
348 log_client_name(client_p
, HIDE_IP
));
350 (void) snprintf(scratch
, sizeof(scratch
),
351 "Ping timeout: %d seconds",
352 (int) (rb_current_time() - client_p
->localClient
->lasttime
));
354 exit_client(client_p
, client_p
, &me
, scratch
);
357 else if((client_p
->flags
& FLAGS_PINGSENT
) == 0)
360 * if we havent PINGed the connection and we havent
361 * heard from it in a while, PING it to make sure
364 client_p
->flags
|= FLAGS_PINGSENT
;
365 /* not nice but does the job */
366 client_p
->localClient
->lasttime
= rb_current_time() - ping
;
367 sendto_one(client_p
, "PING :%s", me
.name
);
376 * check_unknowns_list
378 * inputs - pointer to list of unknown clients
380 * side effects - unknown clients get marked for termination after n seconds
383 check_unknowns_list(rb_dlink_list
* list
)
385 rb_dlink_node
*ptr
, *next_ptr
;
386 struct Client
*client_p
;
389 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
391 client_p
= ptr
->data
;
393 if(IsDead(client_p
) || IsClosing(client_p
))
396 /* still has DNSbls to validate against */
397 if(client_p
->preClient
!= NULL
&&
398 rb_dlink_list_length(&client_p
->preClient
->dnsbl_queries
) > 0)
402 * Check UNKNOWN connections - if they have been in this state
403 * for > 30s, close them.
406 timeout
= IsAnyServer(client_p
) ? ConfigFileEntry
.connect_timeout
: 30;
407 if((rb_current_time() - client_p
->localClient
->firsttime
) > timeout
)
409 if(IsAnyServer(client_p
))
411 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
412 "No response from %s, closing link",
415 "No response from %s, closing link",
416 log_client_name(client_p
, HIDE_IP
));
418 exit_client(client_p
, client_p
, &me
, "Connection timed out");
424 notify_banned_client(struct Client
*client_p
, struct ConfItem
*aconf
, int ban
)
426 static const char conn_closed
[] = "Connection closed";
427 static const char d_lined
[] = "D-lined";
428 static const char k_lined
[] = "K-lined";
429 const char *reason
= NULL
;
430 const char *exit_reason
= conn_closed
;
432 if(ConfigFileEntry
.kline_with_reason
)
434 reason
= get_user_ban_reason(aconf
);
435 exit_reason
= reason
;
439 reason
= aconf
->status
== D_LINED
? d_lined
: k_lined
;
442 if(ban
== D_LINED
&& !IsPerson(client_p
))
443 sendto_one(client_p
, "NOTICE DLINE :*** You have been D-lined");
445 sendto_one(client_p
, form_str(ERR_YOUREBANNEDCREEP
),
446 me
.name
, client_p
->name
, reason
);
448 exit_client(client_p
, client_p
, &me
,
449 EmptyString(ConfigFileEntry
.kline_reason
) ? exit_reason
:
450 ConfigFileEntry
.kline_reason
);
457 * side effects - Check all connections for a pending k/dline against the
458 * client, exit the client if found.
461 check_banned_lines(void)
468 /* check_klines_event()
472 * side effects - check_klines() is called, kline_queued unset
475 check_klines_event(void *unused
)
477 kline_queued
= false;
485 * side effects - all clients will be checked for klines
490 struct Client
*client_p
;
491 struct ConfItem
*aconf
;
493 rb_dlink_node
*next_ptr
;
495 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
497 client_p
= ptr
->data
;
499 if(IsMe(client_p
) || !IsPerson(client_p
))
502 if((aconf
= find_kline(client_p
)) != NULL
)
504 if(IsExemptKline(client_p
))
506 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
507 "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
508 get_client_name(client_p
, HIDE_IP
),
509 aconf
->user
, aconf
->host
);
513 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
514 "KLINE active for %s",
515 get_client_name(client_p
, HIDE_IP
));
517 notify_banned_client(client_p
, aconf
, K_LINED
);
527 * side effects - all clients will be checked for dlines
532 struct Client
*client_p
;
533 struct ConfItem
*aconf
;
535 rb_dlink_node
*next_ptr
;
537 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
539 client_p
= ptr
->data
;
544 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
, GET_SS_FAMILY(&client_p
->localClient
->ip
))) != NULL
)
546 if(aconf
->status
& CONF_EXEMPTDLINE
)
549 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
550 "DLINE active for %s",
551 get_client_name(client_p
, HIDE_IP
));
553 notify_banned_client(client_p
, aconf
, D_LINED
);
558 /* dlines need to be checked against unknowns too */
559 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
561 client_p
= ptr
->data
;
563 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
, GET_SS_FAMILY(&client_p
->localClient
->ip
))) != NULL
)
565 if(aconf
->status
& CONF_EXEMPTDLINE
)
568 notify_banned_client(client_p
, aconf
, D_LINED
);
577 * side effects - all clients will be checked for xlines
582 struct Client
*client_p
;
583 struct ConfItem
*aconf
;
585 rb_dlink_node
*next_ptr
;
587 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
589 client_p
= ptr
->data
;
591 if(IsMe(client_p
) || !IsPerson(client_p
))
594 if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
596 if(IsExemptKline(client_p
))
598 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
599 "XLINE over-ruled for %s, client is kline_exempt [%s]",
600 get_client_name(client_p
, HIDE_IP
),
605 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
606 get_client_name(client_p
, HIDE_IP
));
608 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
616 * inputs - resv, reason, time
618 * side effects - all local clients matching resv will be FNC'd
621 resv_nick_fnc(const char *mask
, const char *reason
, int temp_time
)
623 struct Client
*client_p
, *target_p
;
625 rb_dlink_node
*next_ptr
;
627 char note
[NICKLEN
+10];
629 if (!ConfigFileEntry
.resv_fnc
)
632 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
634 client_p
= ptr
->data
;
636 if(IsMe(client_p
) || !IsPerson(client_p
) || IsExemptResv(client_p
))
639 /* Skip users that already have UID nicks. */
640 if(IsDigit(client_p
->name
[0]))
643 if(match_esc(mask
, client_p
->name
))
648 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
649 "RESV forced nick change for %s!%s@%s to %s; nick matched [%s] (%s)",
650 client_p
->name
, client_p
->username
, client_p
->host
, nick
, mask
, reason
);
652 sendto_realops_snomask(SNO_NCHANGE
, L_ALL
,
653 "Nick change: From %s to %s [%s@%s]",
654 client_p
->name
, nick
, client_p
->username
, client_p
->host
);
659 sendto_one_notice(client_p
,
660 ":*** Nick %s is temporarily unavailable on this server.",
665 sendto_one_notice(client_p
,
666 ":*** Nick %s is no longer available on this server.",
670 /* Do all of the nick-changing gymnastics. */
671 client_p
->tsinfo
= rb_current_time();
672 whowas_add_history(client_p
, 1);
674 monitor_signoff(client_p
);
676 invalidate_bancache_user(client_p
);
678 sendto_common_channels_local(client_p
, NOCAPS
, NOCAPS
, ":%s!%s@%s NICK :%s",
679 client_p
->name
, client_p
->username
, client_p
->host
, nick
);
680 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
, ":%s NICK %s :%ld",
681 use_id(client_p
), nick
, (long) client_p
->tsinfo
);
683 del_from_client_hash(client_p
->name
, client_p
);
684 rb_strlcpy(client_p
->name
, nick
, sizeof(client_p
->name
));
685 add_to_client_hash(nick
, client_p
);
687 monitor_signon(client_p
);
689 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
691 target_p
= ptr
->data
;
692 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
693 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
696 snprintf(note
, sizeof(note
), "Nick: %s", nick
);
697 rb_note(client_p
->localClient
->F
, note
);
703 * update_client_exit_stats
705 * input - pointer to client
710 update_client_exit_stats(struct Client
*client_p
)
712 if(IsServer(client_p
))
714 sendto_realops_snomask(SNO_EXTERNAL
, L_ALL
,
715 "Server %s split from %s",
716 client_p
->name
, client_p
->servptr
->name
);
717 if(HasSentEob(client_p
))
720 else if(IsClient(client_p
))
725 if(IsInvisible(client_p
))
729 if(splitchecking
&& !splitmode
)
730 check_splitmode(NULL
);
734 * release_client_state
736 * input - pointer to client to release
741 release_client_state(struct Client
*client_p
)
743 if(client_p
->user
!= NULL
)
745 free_user(client_p
->user
, client_p
); /* try this here */
749 if(client_p
->serv
->user
!= NULL
)
750 free_user(client_p
->serv
->user
, client_p
);
751 if(client_p
->serv
->fullcaps
)
752 rb_free(client_p
->serv
->fullcaps
);
753 rb_free(client_p
->serv
);
758 * remove_client_from_list
759 * inputs - point to client to remove
761 * side effects - taken the code from ExitOneClient() for this
762 * and placed it here. - avalon
765 remove_client_from_list(struct Client
*client_p
)
767 s_assert(NULL
!= client_p
);
772 /* A client made with make_client()
773 * is on the unknown_list until removed.
774 * If it =does= happen to exit before its removed from that list
775 * and its =not= on the global_client_list, it will core here.
776 * short circuit that case now -db
778 if(client_p
->node
.prev
== NULL
&& client_p
->node
.next
== NULL
)
781 rb_dlinkDelete(&client_p
->node
, &global_client_list
);
783 update_client_exit_stats(client_p
);
789 * input - nickname to check, flag for nick from local client
790 * output - 0 if erroneous, else 1
794 clean_nick(const char *nick
, int loc_client
)
798 /* nicks cant start with a digit or -, and must have a length */
799 if(*nick
== '-' || *nick
== '\0')
802 if(loc_client
&& IsDigit(*nick
))
808 if(!IsNickChar(*nick
))
813 if(len
>= NICKLEN
&& (unsigned int)len
>= ConfigFileEntry
.nicklen
)
820 * find_person - find person by (nick)name.
821 * inputs - pointer to name
822 * output - return client pointer
826 find_person(const char *name
)
828 struct Client
*c2ptr
;
830 c2ptr
= find_client(name
);
832 if(c2ptr
&& IsPerson(c2ptr
))
838 find_named_person(const char *name
)
840 struct Client
*c2ptr
;
842 c2ptr
= find_named_client(name
);
844 if(c2ptr
&& IsPerson(c2ptr
))
851 * find_chasing - find the client structure for a nick name (user)
852 * using history mechanism if necessary. If the client is not found,
853 * an error message (NO SUCH NICK) is generated. If the client was found
854 * through the history, chasing will be 1 and otherwise 0.
857 find_chasing(struct Client
*source_p
, const char *user
, int *chasing
)
861 if(MyClient(source_p
))
862 who
= find_named_person(user
);
864 who
= find_person(user
);
869 if(who
|| IsDigit(*user
))
872 if(!(who
= whowas_get_history(user
, (long) KILLCHASETIMELIMIT
)))
874 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
875 form_str(ERR_NOSUCHNICK
), user
);
884 * get_client_name - Return the name of the client
885 * for various tracking and
886 * admin purposes. The main purpose of this function is to
887 * return the "socket host" name of the client, if that
888 * differs from the advertised name (other than case).
889 * But, this can be used to any client structure.
892 * Watch out the allocation of "nbuf", if either source_p->name
893 * or source_p->sockhost gets changed into pointers instead of
894 * directly allocated within the structure...
897 * Function return either a pointer to the structure (source_p) or
898 * to internal buffer (nbuf). *NEVER* use the returned pointer
899 * to modify what it points!!!
903 get_client_name(struct Client
*client
, int showip
)
905 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
907 s_assert(NULL
!= client
);
911 if(MyConnect(client
))
913 if(!irccmp(client
->name
, client
->host
))
916 if(ConfigFileEntry
.hide_spoof_ips
&&
917 showip
== SHOW_IP
&& IsIPSpoof(client
))
919 if(IsAnyServer(client
))
922 /* And finally, let's get the host information, ip or name */
926 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
927 client
->name
, client
->username
,
931 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
932 client
->name
, client
->username
);
935 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
936 client
->name
, client
->username
, client
->host
);
941 /* As pointed out by Adel Mezibra
942 * Neph|l|m@EFnet. Was missing a return here.
949 * This version is the same as get_client_name, but doesnt contain the
950 * code that will hide IPs always. This should be used for logfiles.
953 log_client_name(struct Client
*target_p
, int showip
)
955 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
960 if(MyConnect(target_p
))
962 if(irccmp(target_p
->name
, target_p
->host
) == 0)
963 return target_p
->name
;
968 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
969 target_p
->username
, target_p
->sockhost
);
973 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
974 target_p
->username
, target_p
->host
);
980 return target_p
->name
;
983 /* is_remote_connect - Returns whether a server was /connect'ed by a remote
984 * oper (send notices netwide) */
986 is_remote_connect(struct Client
*client_p
)
990 if (client_p
->serv
== NULL
)
992 oper
= find_named_person(client_p
->serv
->by
);
993 return oper
!= NULL
&& IsOper(oper
) && !MyConnect(oper
);
997 free_exited_clients(void *unused
)
999 rb_dlink_node
*ptr
, *next
;
1000 struct Client
*target_p
;
1002 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_list
.head
)
1004 target_p
= ptr
->data
;
1006 #ifdef DEBUG_EXITED_CLIENTS
1008 struct abort_client
*abt
;
1009 rb_dlink_node
*aptr
;
1012 RB_DLINK_FOREACH(aptr
, abort_list
.head
)
1015 if(abt
->client
== target_p
)
1018 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1019 "On abort_list: %s stat: %u flags: %u/%u handler: %c",
1020 target_p
->name
, (unsigned int) target_p
->status
,
1021 target_p
->flags
, target_p
->flags2
, target_p
->handler
);
1022 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1023 "Please report this to the charybdis developers!");
1030 rb_dlinkDestroy(ptr
, &dead_list
);
1036 if(ptr
->data
== NULL
)
1038 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1039 "Warning: null client on dead_list!");
1040 rb_dlinkDestroy(ptr
, &dead_list
);
1043 release_client_state(target_p
);
1044 free_client(target_p
);
1045 rb_dlinkDestroy(ptr
, &dead_list
);
1048 #ifdef DEBUG_EXITED_CLIENTS
1049 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_remote_list
.head
)
1051 target_p
= ptr
->data
;
1053 if(ptr
->data
== NULL
)
1055 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1056 "Warning: null client on dead_list!");
1057 rb_dlinkDestroy(ptr
, &dead_list
);
1060 release_client_state(target_p
);
1061 free_client(target_p
);
1062 rb_dlinkDestroy(ptr
, &dead_remote_list
);
1069 ** Remove all clients that depend on source_p; assumes all (S)QUITs have
1070 ** already been sent. we make sure to exit a server's dependent clients
1071 ** and servers before the server itself; exit_one_client takes care of
1072 ** actually removing things off llists. tweaked from +CSr31 -orabidoo
1075 * added sanity test code.... source_p->serv might be NULL...
1078 recurse_remove_clients(struct Client
*source_p
, const char *comment
)
1080 struct Client
*target_p
;
1081 rb_dlink_node
*ptr
, *ptr_next
;
1086 if(source_p
->serv
== NULL
) /* oooops. uh this is actually a major bug */
1089 /* this is very ugly, but it saves cpu :P */
1090 if(ConfigFileEntry
.nick_delay
> 0)
1092 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1094 target_p
= ptr
->data
;
1095 target_p
->flags
|= FLAGS_KILLED
;
1096 add_nd_entry(target_p
->name
);
1098 if(!IsDead(target_p
) && !IsClosing(target_p
))
1099 exit_remote_client(NULL
, target_p
, &me
, comment
);
1104 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1106 target_p
= ptr
->data
;
1107 target_p
->flags
|= FLAGS_KILLED
;
1109 if(!IsDead(target_p
) && !IsClosing(target_p
))
1110 exit_remote_client(NULL
, target_p
, &me
, comment
);
1114 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1116 target_p
= ptr
->data
;
1117 recurse_remove_clients(target_p
, comment
);
1118 qs_server(NULL
, target_p
, &me
, comment
);
1123 ** Remove *everything* that depends on source_p, from all lists, and sending
1124 ** all necessary SQUITs. source_p itself is still on the lists,
1125 ** and its SQUITs have been sent except for the upstream one -orabidoo
1128 remove_dependents(struct Client
*client_p
,
1129 struct Client
*source_p
,
1130 struct Client
*from
, const char *comment
, const char *comment1
)
1133 rb_dlink_node
*ptr
, *next
;
1135 RB_DLINK_FOREACH_SAFE(ptr
, next
, serv_list
.head
)
1139 if(IsMe(to
) || to
== source_p
->from
|| to
== client_p
)
1142 sendto_one(to
, "SQUIT %s :%s", get_id(source_p
, to
), comment
);
1145 recurse_remove_clients(source_p
, comment1
);
1149 exit_aborted_clients(void *unused
)
1151 struct abort_client
*abt
;
1152 rb_dlink_node
*ptr
, *next
;
1153 RB_DLINK_FOREACH_SAFE(ptr
, next
, abort_list
.head
)
1157 #ifdef DEBUG_EXITED_CLIENTS
1159 if(rb_dlinkFind(abt
->client
, &dead_list
))
1162 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1163 "On dead_list: %s stat: %u flags: %u/%u handler: %c",
1164 abt
->client
->name
, (unsigned int) abt
->client
->status
,
1165 abt
->client
->flags
, abt
->client
->flags2
, abt
->client
->handler
);
1166 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1167 "Please report this to the charybdis developers!");
1173 s_assert(*((unsigned long*)abt
->client
) != 0xdeadbeef); /* This is lame but its a debug thing */
1174 rb_dlinkDelete(ptr
, &abort_list
);
1176 if(IsAnyServer(abt
->client
))
1177 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1178 "Closing link to %s: %s",
1179 abt
->client
->name
, abt
->notice
);
1181 /* its no longer on abort list - we *must* remove
1182 * FLAGS_CLOSING otherwise exit_client() will not run --fl
1184 abt
->client
->flags
&= ~FLAGS_CLOSING
;
1185 exit_client(abt
->client
, abt
->client
, &me
, abt
->notice
);
1192 * dead_link - Adds client to a list of clients that need an exit_client()
1195 dead_link(struct Client
*client_p
, int sendqex
)
1197 struct abort_client
*abt
;
1199 s_assert(!IsMe(client_p
));
1200 if(IsDead(client_p
) || IsClosing(client_p
) || IsMe(client_p
))
1203 abt
= (struct abort_client
*) rb_malloc(sizeof(struct abort_client
));
1206 rb_strlcpy(abt
->notice
, "Max SendQ exceeded", sizeof(abt
->notice
));
1208 snprintf(abt
->notice
, sizeof(abt
->notice
), "Write error: %s", strerror(errno
));
1210 abt
->client
= client_p
;
1211 SetIOError(client_p
);
1213 SetClosing(client_p
);
1214 rb_dlinkAdd(abt
, &abt
->node
, &abort_list
);
1218 /* This does the remove of the user from channels..local or remote */
1220 exit_generic_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1221 const char *comment
)
1223 rb_dlink_node
*ptr
, *next_ptr
;
1225 if(IsOper(source_p
))
1226 rb_dlinkFindDestroy(source_p
, &oper_list
);
1228 sendto_common_channels_local(source_p
, NOCAPS
, NOCAPS
, ":%s!%s@%s QUIT :%s",
1230 source_p
->username
, source_p
->host
, comment
);
1232 remove_user_from_channels(source_p
);
1234 /* Should not be in any channels now */
1235 s_assert(source_p
->user
->channel
.head
== NULL
);
1237 /* Clean up invitefield */
1238 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, source_p
->user
->invited
.head
)
1240 del_invite(ptr
->data
, source_p
);
1243 /* Clean up allow lists */
1244 del_all_accepts(source_p
);
1246 whowas_add_history(source_p
, 0);
1247 whowas_off_history(source_p
);
1249 monitor_signoff(source_p
);
1251 if(has_id(source_p
))
1252 del_from_id_hash(source_p
->id
, source_p
);
1254 del_from_hostname_hash(source_p
->orighost
, source_p
);
1255 del_from_client_hash(source_p
->name
, source_p
);
1256 remove_client_from_list(source_p
);
1260 * Assumes IsPerson(source_p) && !MyConnect(source_p)
1264 exit_remote_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1265 const char *comment
)
1267 exit_generic_client(client_p
, source_p
, from
, comment
);
1269 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1271 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->users
);
1274 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1276 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1277 ":%s QUIT :%s", use_id(source_p
), comment
);
1281 #ifdef DEBUG_EXITED_CLIENTS
1282 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1284 rb_dlinkAddAlloc(source_p
, &dead_list
);
1286 return(CLIENT_EXITED
);
1290 * This assumes IsUnknown(source_p) == true and MyConnect(source_p) == true
1294 exit_unknown_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1295 const char *comment
)
1297 delete_auth_queries(source_p
);
1298 abort_blacklist_queries(source_p
);
1299 rb_dlinkDelete(&source_p
->localClient
->tnode
, &unknown_list
);
1301 if(!IsIOError(source_p
))
1302 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)",
1303 source_p
->user
!= NULL
? source_p
->host
: "127.0.0.1",
1306 close_connection(source_p
);
1308 if(has_id(source_p
))
1309 del_from_id_hash(source_p
->id
, source_p
);
1311 del_from_hostname_hash(source_p
->host
, source_p
);
1312 del_from_client_hash(source_p
->name
, source_p
);
1313 remove_client_from_list(source_p
);
1315 rb_dlinkAddAlloc(source_p
, &dead_list
);
1317 /* Note that we don't need to add unknowns to the dead_list */
1318 return(CLIENT_EXITED
);
1322 exit_remote_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1323 const char *comment
)
1325 static char comment1
[(HOSTLEN
*2)+2];
1326 static char newcomment
[BUFSIZE
];
1327 struct Client
*target_p
;
1329 if(ConfigServerHide
.flatten_links
)
1330 strcpy(comment1
, "*.net *.split");
1333 strcpy(comment1
, source_p
->servptr
->name
);
1334 strcat(comment1
, " ");
1335 strcat(comment1
, source_p
->name
);
1338 snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1339 from
->name
, comment
);
1341 if(source_p
->serv
!= NULL
)
1342 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1344 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1345 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1349 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1350 target_p
= source_p
->from
;
1352 if(target_p
!= NULL
&& IsServer(target_p
) && target_p
!= client_p
&&
1353 !IsMe(target_p
) && (source_p
->flags
& FLAGS_KILLED
) == 0)
1355 sendto_one(target_p
, ":%s SQUIT %s :%s",
1356 get_id(from
, target_p
), get_id(source_p
, target_p
),
1360 if(has_id(source_p
))
1361 del_from_id_hash(source_p
->id
, source_p
);
1363 del_from_client_hash(source_p
->name
, source_p
);
1364 remove_client_from_list(source_p
);
1365 scache_split(source_p
->serv
->nameinfo
);
1368 #ifdef DEBUG_EXITED_CLIENTS
1369 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1371 rb_dlinkAddAlloc(source_p
, &dead_list
);
1377 qs_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1378 const char *comment
)
1380 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1381 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1385 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1387 if(has_id(source_p
))
1388 del_from_id_hash(source_p
->id
, source_p
);
1390 del_from_client_hash(source_p
->name
, source_p
);
1391 remove_client_from_list(source_p
);
1392 scache_split(source_p
->serv
->nameinfo
);
1395 rb_dlinkAddAlloc(source_p
, &dead_list
);
1400 exit_local_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1401 const char *comment
)
1403 static char comment1
[(HOSTLEN
*2)+2];
1404 static char newcomment
[BUFSIZE
];
1405 unsigned int sendk
, recvk
;
1407 rb_dlinkDelete(&source_p
->localClient
->tnode
, &serv_list
);
1408 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1410 sendk
= source_p
->localClient
->sendK
;
1411 recvk
= source_p
->localClient
->receiveK
;
1413 /* Always show source here, so the server notices show
1414 * which side initiated the split -- jilles
1416 snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1417 from
== source_p
? me
.name
: from
->name
, comment
);
1418 if (!IsIOError(source_p
))
1419 sendto_one(source_p
, "SQUIT %s :%s", use_id(source_p
),
1421 if(client_p
!= NULL
&& source_p
!= client_p
&& !IsIOError(source_p
))
1423 sendto_one(source_p
, "ERROR :Closing Link: 127.0.0.1 %s (%s)",
1424 source_p
->name
, comment
);
1427 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1428 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1433 close_connection(source_p
);
1435 if(ConfigServerHide
.flatten_links
)
1436 strcpy(comment1
, "*.net *.split");
1439 strcpy(comment1
, source_p
->servptr
->name
);
1440 strcat(comment1
, " ");
1441 strcat(comment1
, source_p
->name
);
1444 if(source_p
->serv
!= NULL
)
1445 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1447 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "%s was connected"
1448 " for %ld seconds. %d/%d sendK/recvK.",
1449 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1451 ilog(L_SERVER
, "%s was connected for %ld seconds. %d/%d sendK/recvK.",
1452 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1454 if(has_id(source_p
))
1455 del_from_id_hash(source_p
->id
, source_p
);
1457 del_from_client_hash(source_p
->name
, source_p
);
1458 remove_client_from_list(source_p
);
1459 scache_split(source_p
->serv
->nameinfo
);
1462 rb_dlinkAddAlloc(source_p
, &dead_list
);
1468 * This assumes IsPerson(source_p) == true && MyConnect(source_p) == true
1472 exit_local_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1473 const char *comment
)
1475 unsigned long on_for
;
1478 exit_generic_client(client_p
, source_p
, from
, comment
);
1479 clear_monitor(source_p
);
1481 s_assert(IsPerson(source_p
));
1482 rb_dlinkDelete(&source_p
->localClient
->tnode
, &lclient_list
);
1483 rb_dlinkDelete(&source_p
->lnode
, &me
.serv
->users
);
1485 if(IsOper(source_p
))
1486 rb_dlinkFindDestroy(source_p
, &local_oper_list
);
1488 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
1489 "Client exiting: %s (%s@%s) [%s] [%s]",
1491 source_p
->username
, source_p
->host
, comment
,
1492 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255");
1494 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
1495 "CLIEXIT %s %s %s %s 0 %s",
1496 source_p
->name
, source_p
->username
, source_p
->host
,
1497 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255",
1500 on_for
= rb_current_time() - source_p
->localClient
->firsttime
;
1502 ilog(L_USER
, "%s (%3lu:%02lu:%02lu): %s!%s@%s %s %d/%d",
1503 rb_ctime(rb_current_time(), tbuf
, sizeof(tbuf
)), on_for
/ 3600,
1504 (on_for
% 3600) / 60, on_for
% 60,
1505 source_p
->name
, source_p
->username
, source_p
->host
,
1507 source_p
->localClient
->sendK
, source_p
->localClient
->receiveK
);
1509 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)", source_p
->host
, comment
);
1510 close_connection(source_p
);
1512 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1514 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1515 ":%s QUIT :%s", use_id(source_p
), comment
);
1519 rb_dlinkAddAlloc(source_p
, &dead_list
);
1520 return(CLIENT_EXITED
);
1525 ** exit_client - This is old "m_bye". Name changed, because this is not a
1526 ** protocol function, but a general server utility function.
1528 ** This function exits a client of *any* type (user, server, etc)
1529 ** from this server. Also, this generates all necessary prototol
1530 ** messages that this exit may cause.
1532 ** 1) If the client is a local client, then this implicitly
1533 ** exits all other clients depending on this connection (e.g.
1534 ** remote clients having 'from'-field that points to this.
1536 ** 2) If the client is a remote client, then only this is exited.
1538 ** For convenience, this function returns a suitable value for
1539 ** m_function return value:
1541 ** CLIENT_EXITED if (client_p == source_p)
1542 ** 0 if (client_p != source_p)
1545 exit_client(struct Client
*client_p
, /* The local client originating the
1546 * exit or NULL, if this exit is
1547 * generated by this server for
1549 * This will not get any of the
1550 * generated messages. */
1551 struct Client
*source_p
, /* Client exiting */
1552 struct Client
*from
, /* Client firing off this Exit,
1554 const char *comment
/* Reason for the exit */
1557 hook_data_client_exit hdata
;
1558 if(IsClosing(source_p
))
1561 /* note, this HAS to be here, when we exit a client we attempt to
1562 * send them data, if this generates a write error we must *not* add
1563 * them to the abort list --fl
1565 SetClosing(source_p
);
1567 hdata
.local_link
= client_p
;
1568 hdata
.target
= source_p
;
1570 hdata
.comment
= comment
;
1571 call_hook(h_client_exit
, &hdata
);
1573 if(MyConnect(source_p
))
1575 /* Local clients of various types */
1576 if(IsPerson(source_p
))
1577 return exit_local_client(client_p
, source_p
, from
, comment
);
1578 else if(IsServer(source_p
))
1579 return exit_local_server(client_p
, source_p
, from
, comment
);
1580 /* IsUnknown || IsConnecting || IsHandShake */
1581 else if(!IsReject(source_p
))
1582 return exit_unknown_client(client_p
, source_p
, from
, comment
);
1587 if(IsPerson(source_p
))
1588 return exit_remote_client(client_p
, source_p
, from
, comment
);
1589 else if(IsServer(source_p
))
1590 return exit_remote_server(client_p
, source_p
, from
, comment
);
1597 * Count up local client memory
1600 /* XXX one common Client list now */
1602 count_local_client_memory(size_t * count
, size_t * local_client_memory_used
)
1605 rb_bh_usage(lclient_heap
, count
, NULL
, &lusage
, NULL
);
1606 *local_client_memory_used
= lusage
+ (*count
* (sizeof(void *) + sizeof(struct Client
)));
1610 * Count up remote client memory
1613 count_remote_client_memory(size_t * count
, size_t * remote_client_memory_used
)
1615 size_t lcount
, rcount
;
1616 rb_bh_usage(lclient_heap
, &lcount
, NULL
, NULL
, NULL
);
1617 rb_bh_usage(client_heap
, &rcount
, NULL
, NULL
, NULL
);
1618 *count
= rcount
- lcount
;
1619 *remote_client_memory_used
= *count
* (sizeof(void *) + sizeof(struct Client
));
1624 * accept processing, this adds a form of "caller ID" to ircd
1626 * If a client puts themselves into "caller ID only" mode,
1627 * only clients that match a client pointer they have put on
1628 * the accept list will be allowed to message them.
1630 * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1632 * [target.allow_list] -> [ source1 ] -> [source2 ]
1634 * i.e. a target will have a link list of source pointers it will allow
1635 * each source client then has a back pointer pointing back
1636 * to the client that has it on its accept list.
1637 * This allows for exit_one_client to remove these now bogus entries
1638 * from any client having an accept on them.
1643 * inputs - pointer to exiting client
1645 * side effects - Walk through given clients allow_list and on_allow_list
1646 * remove all references to this client
1649 del_all_accepts(struct Client
*client_p
)
1652 rb_dlink_node
*next_ptr
;
1653 struct Client
*target_p
;
1655 if(MyClient(client_p
) && client_p
->localClient
->allow_list
.head
)
1657 /* clear this clients accept list, and remove them from
1658 * everyones on_accept_list
1660 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->localClient
->allow_list
.head
)
1662 target_p
= ptr
->data
;
1663 rb_dlinkFindDestroy(client_p
, &target_p
->on_allow_list
);
1664 rb_dlinkDestroy(ptr
, &client_p
->localClient
->allow_list
);
1668 /* remove this client from everyones accept list */
1669 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
1671 target_p
= ptr
->data
;
1672 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
1673 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
1678 * show_ip() - asks if the true IP should be shown when source is
1679 * asking for info about target
1681 * Inputs - source_p who is asking
1682 * - target_p who do we want the info on
1683 * Output - returns 1 if clear IP can be shown, otherwise 0
1684 * Side Effects - none
1688 show_ip(struct Client
*source_p
, struct Client
*target_p
)
1690 if(IsAnyServer(target_p
))
1694 else if(IsIPSpoof(target_p
))
1696 /* source == NULL indicates message is being sent
1699 if(!ConfigFileEntry
.hide_spoof_ips
&&
1700 (source_p
== NULL
|| MyOper(source_p
)))
1704 else if(IsDynSpoof(target_p
) && (source_p
!= NULL
&& !IsOper(source_p
)))
1711 show_ip_conf(struct ConfItem
*aconf
, struct Client
*source_p
)
1713 if(IsConfDoSpoofIp(aconf
))
1715 if(!ConfigFileEntry
.hide_spoof_ips
&& MyOper(source_p
))
1725 show_ip_whowas(struct Whowas
*whowas
, struct Client
*source_p
)
1727 if(whowas
->flags
& WHOWAS_IP_SPOOFING
)
1728 if(ConfigFileEntry
.hide_spoof_ips
|| !MyOper(source_p
))
1730 if(whowas
->flags
& WHOWAS_DYNSPOOF
)
1731 if(!IsOper(source_p
))
1739 * inputs - pointer to client struct
1740 * output - pointer to struct User
1741 * side effects - add's an User information block to a client
1742 * if it was not previously allocated.
1745 make_user(struct Client
*client_p
)
1749 user
= client_p
->user
;
1752 user
= (struct User
*) rb_bh_alloc(user_heap
);
1754 client_p
->user
= user
;
1762 * inputs - pointer to client struct
1763 * output - pointer to server_t
1764 * side effects - add's an Server information block to a client
1765 * if it was not previously allocated.
1768 make_server(struct Client
*client_p
)
1770 struct Server
*serv
= client_p
->serv
;
1774 serv
= (struct Server
*) rb_malloc(sizeof(struct Server
));
1775 client_p
->serv
= serv
;
1777 return client_p
->serv
;
1783 * inputs - pointer to user struct
1784 * - pointer to client struct
1786 * side effects - Decrease user reference count by one and release block,
1787 * if count reaches 0
1790 free_user(struct User
*user
, struct Client
*client_p
)
1792 free_away(client_p
);
1794 if(--user
->refcnt
<= 0)
1797 rb_free((char *) user
->away
);
1801 if(user
->refcnt
< 0 || user
->invited
.head
|| user
->channel
.head
)
1803 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1804 "* %p user (%s!%s@%s) %p %p %p %lu %d *",
1806 client_p
? client_p
->
1813 rb_dlink_list_length(&user
->channel
),
1815 s_assert(!user
->refcnt
);
1816 s_assert(!user
->invited
.head
);
1817 s_assert(!user
->channel
.head
);
1820 rb_bh_free(user_heap
, user
);
1825 allocate_away(struct Client
*client_p
)
1827 if(client_p
->user
->away
== NULL
)
1828 client_p
->user
->away
= rb_bh_alloc(away_heap
);
1833 free_away(struct Client
*client_p
)
1835 if(client_p
->user
!= NULL
&& client_p
->user
->away
!= NULL
) {
1836 rb_bh_free(away_heap
, client_p
->user
->away
);
1837 client_p
->user
->away
= NULL
;
1846 for(i
= 0; i
< 3; i
++)
1847 current_uid
[i
] = me
.id
[i
];
1849 for(i
= 3; i
< 9; i
++)
1850 current_uid
[i
] = 'A';
1852 current_uid
[9] = '\0';
1859 static int flipped
= 0;
1863 for(i
= 8; i
> 3; i
--)
1865 if(current_uid
[i
] == 'Z')
1867 current_uid
[i
] = '0';
1870 else if(current_uid
[i
] != '9')
1876 current_uid
[i
] = 'A';
1879 /* if this next if() triggers, we're fucked. */
1880 if(current_uid
[3] == 'Z')
1882 current_uid
[i
] = 'A';
1888 /* if this happens..well, i'm not sure what to say, but lets handle it correctly */
1889 if(rb_unlikely(flipped
))
1891 /* this slows down uid generation a bit... */
1892 if(find_id(current_uid
) != NULL
)
1900 * Close the physical connection. This function must make
1901 * MyConnect(client_p) == FALSE, and set client_p->from == NULL.
1904 close_connection(struct Client
*client_p
)
1906 s_assert(client_p
!= NULL
);
1907 if(client_p
== NULL
)
1910 s_assert(MyConnect(client_p
));
1911 if(!MyConnect(client_p
))
1914 if(IsServer(client_p
))
1916 struct server_conf
*server_p
;
1918 ServerStats
.is_sv
++;
1919 ServerStats
.is_sbs
+= client_p
->localClient
->sendB
;
1920 ServerStats
.is_sbr
+= client_p
->localClient
->receiveB
;
1921 ServerStats
.is_sti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
1924 * If the connection has been up for a long amount of time, schedule
1925 * a 'quick' reconnect, else reset the next-connect cycle.
1927 if((server_p
= find_server_conf(client_p
->name
)) != NULL
)
1930 * Reschedule a faster reconnect, if this was a automatically
1931 * connected configuration entry. (Note that if we have had
1932 * a rehash in between, the status has been changed to
1933 * CONF_ILLEGAL). But only do this if it was a "good" link.
1935 server_p
->hold
= time(NULL
);
1937 (server_p
->hold
- client_p
->localClient
->lasttime
>
1938 HANGONGOODLINK
) ? HANGONRETRYDELAY
: ConFreq(server_p
->class);
1942 else if(IsClient(client_p
))
1944 ServerStats
.is_cl
++;
1945 ServerStats
.is_cbs
+= client_p
->localClient
->sendB
;
1946 ServerStats
.is_cbr
+= client_p
->localClient
->receiveB
;
1947 ServerStats
.is_cti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
1950 ServerStats
.is_ni
++;
1952 del_from_cli_connid_hash(client_p
);
1954 if(client_p
->localClient
->F
!= NULL
)
1956 /* attempt to flush any pending dbufs. Evil, but .. -- adrian */
1957 if(!IsIOError(client_p
))
1958 send_queued(client_p
);
1960 rb_close(client_p
->localClient
->F
);
1961 client_p
->localClient
->F
= NULL
;
1964 rb_linebuf_donebuf(&client_p
->localClient
->buf_sendq
);
1965 rb_linebuf_donebuf(&client_p
->localClient
->buf_recvq
);
1966 detach_conf(client_p
);
1968 /* XXX shouldnt really be done here. */
1969 detach_server_conf(client_p
);
1971 client_p
->from
= NULL
; /* ...this should catch them! >:) --msa */
1972 ClearMyConnect(client_p
);
1973 SetIOError(client_p
);
1979 error_exit_client(struct Client
*client_p
, int error
)
1982 * ...hmm, with non-blocking sockets we might get
1983 * here from quite valid reasons, although.. why
1984 * would select report "data available" when there
1985 * wasn't... so, this must be an error anyway... --msa
1986 * actually, EOF occurs when read() returns 0 and
1987 * in due course, select() returns that fd as ready
1988 * for reading even though it ends up being an EOF. -avalon
1991 int current_error
= rb_get_sockerr(client_p
->localClient
->F
);
1993 SetIOError(client_p
);
1995 if(IsServer(client_p
) || IsHandshake(client_p
))
1999 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2000 "Server %s closed the connection",
2003 ilog(L_SERVER
, "Server %s closed the connection",
2004 log_client_name(client_p
, SHOW_IP
));
2008 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2009 "Lost connection to %s: %s",
2010 client_p
->name
, strerror(current_error
));
2011 ilog(L_SERVER
, "Lost connection to %s: %s",
2012 log_client_name(client_p
, SHOW_IP
), strerror(current_error
));
2017 rb_strlcpy(errmsg
, "Remote host closed the connection", sizeof(errmsg
));
2019 snprintf(errmsg
, sizeof(errmsg
), "Read error: %s", strerror(current_error
));
2021 exit_client(client_p
, client_p
, &me
, errmsg
);