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"
52 #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 uint32_t current_connid
= 0;
81 rb_dictionary
*nd_dict
= NULL
;
83 rb_dlink_list dead_list
;
84 #ifdef DEBUG_EXITED_CLIENTS
85 static rb_dlink_list dead_remote_list
;
91 struct Client
*client
;
92 char notice
[REASONLEN
];
95 static rb_dlink_list abort_list
;
103 * side effects - initialize client free memory
109 * start off the check ping event .. -- adrian
110 * Every 30 seconds is plenty -- db
112 client_heap
= rb_bh_create(sizeof(struct Client
), CLIENT_HEAP_SIZE
, "client_heap");
113 lclient_heap
= rb_bh_create(sizeof(struct LocalUser
), LCLIENT_HEAP_SIZE
, "lclient_heap");
114 pclient_heap
= rb_bh_create(sizeof(struct PreClient
), PCLIENT_HEAP_SIZE
, "pclient_heap");
115 user_heap
= rb_bh_create(sizeof(struct User
), USER_HEAP_SIZE
, "user_heap");
116 away_heap
= rb_bh_create(AWAYLEN
, AWAY_HEAP_SIZE
, "away_heap");
118 rb_event_addish("check_pings", check_pings
, NULL
, 30);
119 rb_event_addish("free_exited_clients", &free_exited_clients
, NULL
, 4);
120 rb_event_addish("exit_aborted_clients", exit_aborted_clients
, NULL
, 1);
121 rb_event_add("flood_recalc", flood_recalc
, NULL
, 1);
123 nd_dict
= rb_dictionary_create("nickdelay", irccmp
);
127 * connid_get - allocate a connid
130 * outputs - a connid token which is used to represent a logical circuit
131 * side effects - current_connid is incremented, possibly multiple times.
132 * the association of the connid to it's client is committed.
135 connid_get(struct Client
*client_p
)
137 s_assert(MyConnect(client_p
));
138 if (!MyConnect(client_p
))
141 /* find a connid that is available */
142 while (find_cli_connid_hash(++current_connid
) != NULL
)
144 /* handle wraparound, current_connid must NEVER be 0 */
145 if (current_connid
== 0)
149 add_to_cli_connid_hash(client_p
, current_connid
);
150 rb_dlinkAddAlloc(RB_UINT_TO_POINTER(current_connid
), &client_p
->localClient
->connids
);
152 return current_connid
;
156 * connid_put - free a connid
158 * inputs - connid to free
160 * side effects - connid bookkeeping structures are freed
163 connid_put(uint32_t id
)
165 struct Client
*client_p
;
171 client_p
= find_cli_connid_hash(id
);
172 if (client_p
== NULL
)
175 del_from_cli_connid_hash(id
);
176 rb_dlinkFindDestroy(RB_UINT_TO_POINTER(id
), &client_p
->localClient
->connids
);
180 * client_release_connids - release any connids still attached to a client
182 * inputs - client to garbage collect
184 * side effects - client's connids are garbage collected
187 client_release_connids(struct Client
*client_p
)
189 rb_dlink_node
*ptr
, *ptr2
;
191 if (client_p
->localClient
->connids
.head
)
192 s_assert(MyConnect(client_p
));
194 if (!MyConnect(client_p
))
197 RB_DLINK_FOREACH_SAFE(ptr
, ptr2
, client_p
->localClient
->connids
.head
)
198 connid_put(RB_POINTER_TO_UINT(ptr
->data
));
202 * make_client - create a new Client struct and set it to initial state.
204 * from == NULL, create local client (a client connected
207 * from, create remote client (behind a socket
208 * associated with the client defined by
209 * 'from'). ('from' is a local client!!).
212 make_client(struct Client
*from
)
214 struct Client
*client_p
= NULL
;
215 struct LocalUser
*localClient
;
217 client_p
= rb_bh_alloc(client_heap
);
221 client_p
->from
= client_p
; /* 'from' of local client is self! */
223 localClient
= rb_bh_alloc(lclient_heap
);
224 SetMyConnect(client_p
);
225 client_p
->localClient
= localClient
;
227 client_p
->localClient
->lasttime
= client_p
->localClient
->firsttime
= rb_current_time();
229 client_p
->localClient
->F
= NULL
;
231 client_p
->preClient
= rb_bh_alloc(pclient_heap
);
233 /* as good a place as any... */
234 rb_dlinkAdd(client_p
, &client_p
->localClient
->tnode
, &unknown_list
);
237 { /* from is not NULL */
238 client_p
->localClient
= NULL
;
239 client_p
->preClient
= NULL
;
240 client_p
->from
= from
; /* 'from' of local client is self! */
243 SetUnknown(client_p
);
244 rb_strlcpy(client_p
->username
, "unknown", sizeof(client_p
->username
));
250 free_pre_client(struct Client
*client_p
)
252 s_assert(NULL
!= client_p
);
254 if(client_p
->preClient
== NULL
)
257 s_assert(client_p
->preClient
->auth
.cid
== 0);
259 rb_free(client_p
->preClient
->auth
.data
);
260 rb_free(client_p
->preClient
->auth
.reason
);
262 rb_bh_free(pclient_heap
, client_p
->preClient
);
263 client_p
->preClient
= NULL
;
267 free_local_client(struct Client
*client_p
)
269 s_assert(NULL
!= client_p
);
270 s_assert(&me
!= client_p
);
272 if(client_p
->localClient
== NULL
)
276 * clean up extra sockets from P-lines which have been discarded.
278 if(client_p
->localClient
->listener
)
280 s_assert(0 < client_p
->localClient
->listener
->ref_count
);
281 if(0 == --client_p
->localClient
->listener
->ref_count
282 && !client_p
->localClient
->listener
->active
)
283 free_listener(client_p
->localClient
->listener
);
284 client_p
->localClient
->listener
= 0;
287 client_release_connids(client_p
);
288 if(client_p
->localClient
->F
!= NULL
)
290 rb_close(client_p
->localClient
->F
);
293 if(client_p
->localClient
->passwd
)
295 memset(client_p
->localClient
->passwd
, 0,
296 strlen(client_p
->localClient
->passwd
));
297 rb_free(client_p
->localClient
->passwd
);
300 rb_free(client_p
->localClient
->auth_user
);
301 rb_free(client_p
->localClient
->challenge
);
302 rb_free(client_p
->localClient
->fullcaps
);
303 rb_free(client_p
->localClient
->mangledhost
);
306 ssld_decrement_clicount(client_p
->localClient
->ssl_ctl
);
308 rb_free(client_p
->localClient
->cipher_string
);
310 if (IsCapable(client_p
, CAP_ZIP
))
311 ssld_decrement_clicount(client_p
->localClient
->z_ctl
);
313 rb_free(client_p
->localClient
->zipstats
);
315 if (client_p
->localClient
->ws_ctl
!= NULL
)
316 wsockd_decrement_clicount(client_p
->localClient
->ws_ctl
);
318 rb_bh_free(lclient_heap
, client_p
->localClient
);
319 client_p
->localClient
= NULL
;
323 free_client(struct Client
*client_p
)
325 s_assert(NULL
!= client_p
);
326 s_assert(&me
!= client_p
);
327 free_local_client(client_p
);
328 free_pre_client(client_p
);
329 rb_free(client_p
->certfp
);
330 rb_bh_free(client_heap
, client_p
);
334 * check_pings - go through the local client list and check activity
335 * kill off stuff that should die
337 * inputs - NOT USED (from event)
338 * output - next time_t when check_pings() should be called again
342 * A PING can be sent to clients as necessary.
344 * Client/Server ping outs are handled.
348 * Addon from adrian. We used to call this after nextping seconds,
349 * however I've changed it to run once a second. This is only for
350 * PING timeouts, not K/etc-line checks (thanks dianora!). Having it
351 * run once a second makes life a lot easier - when a new client connects
352 * and they need a ping in 4 seconds, if nextping was set to 20 seconds
353 * we end up waiting 20 seconds. This is stupid. :-)
354 * I will optimise (hah!) check_pings() once I've finished working on
355 * tidying up other network IO evilnesses.
360 check_pings(void *notused
)
362 check_pings_list(&lclient_list
);
363 check_pings_list(&serv_list
);
364 check_unknowns_list(&unknown_list
);
370 * inputs - pointer to list to check
375 check_pings_list(rb_dlink_list
* list
)
377 char scratch
[32]; /* way too generous but... */
378 struct Client
*client_p
; /* current local client_p being examined */
379 int ping
= 0; /* ping time value from client */
380 rb_dlink_node
*ptr
, *next_ptr
;
382 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
384 client_p
= ptr
->data
;
386 if(!MyConnect(client_p
) || IsDead(client_p
))
389 ping
= get_client_ping(client_p
);
391 if(ping
< (rb_current_time() - client_p
->localClient
->lasttime
))
394 * If the client/server hasnt talked to us in 2*ping seconds
395 * and it has a ping time, then close its connection.
397 if(((rb_current_time() - client_p
->localClient
->lasttime
) >= (2 * ping
)
398 && (client_p
->flags
& FLAGS_PINGSENT
)))
400 if(IsServer(client_p
))
402 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
403 "No response from %s, closing link",
406 "No response from %s, closing link",
407 log_client_name(client_p
, HIDE_IP
));
409 (void) snprintf(scratch
, sizeof(scratch
),
410 "Ping timeout: %d seconds",
411 (int) (rb_current_time() - client_p
->localClient
->lasttime
));
413 exit_client(client_p
, client_p
, &me
, scratch
);
416 else if((client_p
->flags
& FLAGS_PINGSENT
) == 0)
419 * if we havent PINGed the connection and we havent
420 * heard from it in a while, PING it to make sure
423 client_p
->flags
|= FLAGS_PINGSENT
;
424 /* not nice but does the job */
425 client_p
->localClient
->lasttime
= rb_current_time() - ping
;
426 sendto_one(client_p
, "PING :%s", me
.name
);
435 * check_unknowns_list
437 * inputs - pointer to list of unknown clients
439 * side effects - unknown clients get marked for termination after n seconds
442 check_unknowns_list(rb_dlink_list
* list
)
444 rb_dlink_node
*ptr
, *next_ptr
;
445 struct Client
*client_p
;
448 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
450 client_p
= ptr
->data
;
452 if(IsDead(client_p
) || IsClosing(client_p
))
455 /* Still querying with authd */
456 if(client_p
->preClient
!= NULL
&& client_p
->preClient
->auth
.cid
!= 0)
460 * Check UNKNOWN connections - if they have been in this state
461 * for > 30s, close them.
464 timeout
= IsAnyServer(client_p
) ? ConfigFileEntry
.connect_timeout
: 30;
465 if((rb_current_time() - client_p
->localClient
->firsttime
) > timeout
)
467 if(IsAnyServer(client_p
))
469 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
470 "No response from %s, closing link",
473 "No response from %s, closing link",
474 log_client_name(client_p
, HIDE_IP
));
476 exit_client(client_p
, client_p
, &me
, "Connection timed out");
482 notify_banned_client(struct Client
*client_p
, struct ConfItem
*aconf
, int ban
)
484 static const char conn_closed
[] = "Connection closed";
485 static const char d_lined
[] = "D-lined";
486 static const char k_lined
[] = "K-lined";
487 const char *reason
= NULL
;
488 const char *exit_reason
= conn_closed
;
490 if(ConfigFileEntry
.kline_with_reason
)
492 reason
= get_user_ban_reason(aconf
);
493 exit_reason
= reason
;
497 reason
= aconf
->status
== D_LINED
? d_lined
: k_lined
;
500 if(ban
== D_LINED
&& !IsPerson(client_p
))
501 sendto_one(client_p
, "NOTICE DLINE :*** You have been D-lined");
503 sendto_one(client_p
, form_str(ERR_YOUREBANNEDCREEP
),
504 me
.name
, client_p
->name
, reason
);
506 exit_client(client_p
, client_p
, &me
,
507 EmptyString(ConfigFileEntry
.kline_reason
) ? exit_reason
:
508 ConfigFileEntry
.kline_reason
);
515 * side effects - Check all connections for a pending k/dline against the
516 * client, exit the client if found.
519 check_banned_lines(void)
530 * side effects - all clients will be checked for klines
535 struct Client
*client_p
;
536 struct ConfItem
*aconf
;
538 rb_dlink_node
*next_ptr
;
540 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
542 client_p
= ptr
->data
;
544 if(IsMe(client_p
) || !IsPerson(client_p
))
547 if((aconf
= find_kline(client_p
)) != NULL
)
549 if(IsExemptKline(client_p
))
551 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
552 "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
553 get_client_name(client_p
, HIDE_IP
),
554 aconf
->user
, aconf
->host
);
558 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
559 "KLINE active for %s",
560 get_client_name(client_p
, HIDE_IP
));
562 notify_banned_client(client_p
, aconf
, K_LINED
);
571 * This process needs to be kept in sync with find_kline() aka find_conf_by_address().
573 * inputs - pointer to kline to check
575 * side effects - all clients will be checked against given kline
578 check_one_kline(struct ConfItem
*kline
)
580 struct Client
*client_p
;
582 rb_dlink_node
*next_ptr
;
585 struct rb_sockaddr_storage sockaddr
;
586 struct sockaddr_in ip4
;
588 masktype
= parse_netmask(kline
->host
, (struct sockaddr_storage
*)&sockaddr
, &bits
);
590 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
594 client_p
= ptr
->data
;
596 if(IsMe(client_p
) || !IsPerson(client_p
))
599 if(!match(kline
->user
, client_p
->username
))
602 /* match one kline */
606 if (IsConfDoSpoofIp(client_p
->localClient
->att_conf
) &&
607 IsConfKlineSpoof(client_p
->localClient
->att_conf
))
609 if (client_p
->localClient
->ip
.ss_family
== AF_INET6
&& sockaddr
.ss_family
== AF_INET
&&
610 rb_ipv4_from_ipv6((struct sockaddr_in6
*)&client_p
->localClient
->ip
, &ip4
)
611 && comp_with_mask_sock((struct sockaddr
*)&ip4
, (struct sockaddr
*)&sockaddr
, bits
))
613 else if (client_p
->localClient
->ip
.ss_family
== sockaddr
.ss_family
&&
614 comp_with_mask_sock((struct sockaddr
*)&client_p
->localClient
->ip
,
615 (struct sockaddr
*)&sockaddr
, bits
))
619 if (match(kline
->host
, client_p
->orighost
))
621 if (IsConfDoSpoofIp(client_p
->localClient
->att_conf
) &&
622 IsConfKlineSpoof(client_p
->localClient
->att_conf
))
624 if (match(kline
->host
, client_p
->sockhost
))
632 if(IsExemptKline(client_p
))
634 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
,
635 "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
636 get_client_name(client_p
, HIDE_IP
),
637 kline
->user
, kline
->host
);
641 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
642 "KLINE active for %s",
643 get_client_name(client_p
, HIDE_IP
));
645 notify_banned_client(client_p
, kline
, K_LINED
);
654 * side effects - all clients will be checked for dlines
659 struct Client
*client_p
;
660 struct ConfItem
*aconf
;
662 rb_dlink_node
*next_ptr
;
664 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
666 client_p
= ptr
->data
;
671 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
, GET_SS_FAMILY(&client_p
->localClient
->ip
))) != NULL
)
673 if(aconf
->status
& CONF_EXEMPTDLINE
)
676 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
677 "DLINE active for %s",
678 get_client_name(client_p
, HIDE_IP
));
680 notify_banned_client(client_p
, aconf
, D_LINED
);
685 /* dlines need to be checked against unknowns too */
686 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
688 client_p
= ptr
->data
;
690 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
, GET_SS_FAMILY(&client_p
->localClient
->ip
))) != NULL
)
692 if(aconf
->status
& CONF_EXEMPTDLINE
)
695 notify_banned_client(client_p
, aconf
, D_LINED
);
704 * side effects - all clients will be checked for xlines
709 struct Client
*client_p
;
710 struct ConfItem
*aconf
;
712 rb_dlink_node
*next_ptr
;
714 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
716 client_p
= ptr
->data
;
718 if(IsMe(client_p
) || !IsPerson(client_p
))
721 if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
723 if(IsExemptKline(client_p
))
725 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
726 "XLINE over-ruled for %s, client is kline_exempt [%s]",
727 get_client_name(client_p
, HIDE_IP
),
732 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
733 get_client_name(client_p
, HIDE_IP
));
735 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
743 * inputs - resv, reason, time
745 * side effects - all local clients matching resv will be FNC'd
748 resv_nick_fnc(const char *mask
, const char *reason
, int temp_time
)
750 struct Client
*client_p
, *target_p
;
752 rb_dlink_node
*next_ptr
;
754 char note
[NICKLEN
+10];
756 if (!ConfigFileEntry
.resv_fnc
)
759 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
761 client_p
= ptr
->data
;
763 if(IsMe(client_p
) || !IsPerson(client_p
) || IsExemptResv(client_p
))
766 /* Skip users that already have UID nicks. */
767 if(IsDigit(client_p
->name
[0]))
770 if(match_esc(mask
, client_p
->name
))
775 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
776 "RESV forced nick change for %s!%s@%s to %s; nick matched [%s] (%s)",
777 client_p
->name
, client_p
->username
, client_p
->host
, nick
, mask
, reason
);
779 sendto_realops_snomask(SNO_NCHANGE
, L_ALL
,
780 "Nick change: From %s to %s [%s@%s]",
781 client_p
->name
, nick
, client_p
->username
, client_p
->host
);
786 sendto_one_notice(client_p
,
787 ":*** Nick %s is temporarily unavailable on this server.",
792 sendto_one_notice(client_p
,
793 ":*** Nick %s is no longer available on this server.",
797 /* Do all of the nick-changing gymnastics. */
798 client_p
->tsinfo
= rb_current_time();
799 whowas_add_history(client_p
, 1);
801 monitor_signoff(client_p
);
803 invalidate_bancache_user(client_p
);
805 sendto_common_channels_local(client_p
, NOCAPS
, NOCAPS
, ":%s!%s@%s NICK :%s",
806 client_p
->name
, client_p
->username
, client_p
->host
, nick
);
807 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
, ":%s NICK %s :%ld",
808 use_id(client_p
), nick
, (long) client_p
->tsinfo
);
810 del_from_client_hash(client_p
->name
, client_p
);
811 rb_strlcpy(client_p
->name
, nick
, sizeof(client_p
->name
));
812 add_to_client_hash(nick
, client_p
);
814 monitor_signon(client_p
);
816 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
818 target_p
= ptr
->data
;
819 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
820 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
823 snprintf(note
, sizeof(note
), "Nick: %s", nick
);
824 rb_note(client_p
->localClient
->F
, note
);
830 * update_client_exit_stats
832 * input - pointer to client
837 update_client_exit_stats(struct Client
*client_p
)
839 if(IsServer(client_p
))
841 sendto_realops_snomask(SNO_EXTERNAL
, L_ALL
,
842 "Server %s split from %s",
843 client_p
->name
, client_p
->servptr
->name
);
844 if(HasSentEob(client_p
))
847 else if(IsClient(client_p
))
852 if(IsInvisible(client_p
))
856 if(splitchecking
&& !splitmode
)
857 check_splitmode(NULL
);
861 * release_client_state
863 * input - pointer to client to release
868 release_client_state(struct Client
*client_p
)
870 if(client_p
->user
!= NULL
)
872 free_user(client_p
->user
, client_p
); /* try this here */
876 if(client_p
->serv
->user
!= NULL
)
877 free_user(client_p
->serv
->user
, client_p
);
878 if(client_p
->serv
->fullcaps
)
879 rb_free(client_p
->serv
->fullcaps
);
880 rb_free(client_p
->serv
);
885 * remove_client_from_list
886 * inputs - point to client to remove
888 * side effects - taken the code from ExitOneClient() for this
889 * and placed it here. - avalon
892 remove_client_from_list(struct Client
*client_p
)
894 s_assert(NULL
!= client_p
);
899 /* A client made with make_client()
900 * is on the unknown_list until removed.
901 * If it =does= happen to exit before its removed from that list
902 * and its =not= on the global_client_list, it will core here.
903 * short circuit that case now -db
905 if(client_p
->node
.prev
== NULL
&& client_p
->node
.next
== NULL
)
908 rb_dlinkDelete(&client_p
->node
, &global_client_list
);
910 update_client_exit_stats(client_p
);
916 * input - nickname to check, flag for nick from local client
917 * output - 0 if erroneous, else 1
921 clean_nick(const char *nick
, int loc_client
)
925 /* nicks cant start with a digit or -, and must have a length */
926 if(*nick
== '-' || *nick
== '\0')
929 if(loc_client
&& IsDigit(*nick
))
935 if(!IsNickChar(*nick
))
940 if(len
>= NICKLEN
&& (unsigned int)len
>= ConfigFileEntry
.nicklen
)
947 * find_person - find person by (nick)name.
948 * inputs - pointer to name
949 * output - return client pointer
953 find_person(const char *name
)
955 struct Client
*c2ptr
;
957 c2ptr
= find_client(name
);
959 if(c2ptr
&& IsPerson(c2ptr
))
965 find_named_person(const char *name
)
967 struct Client
*c2ptr
;
969 c2ptr
= find_named_client(name
);
971 if(c2ptr
&& IsPerson(c2ptr
))
978 * find_chasing - find the client structure for a nick name (user)
979 * using history mechanism if necessary. If the client is not found,
980 * an error message (NO SUCH NICK) is generated. If the client was found
981 * through the history, chasing will be 1 and otherwise 0.
984 find_chasing(struct Client
*source_p
, const char *user
, int *chasing
)
988 if(MyClient(source_p
))
989 who
= find_named_person(user
);
991 who
= find_person(user
);
996 if(who
|| IsDigit(*user
))
999 if(!(who
= whowas_get_history(user
, (long) KILLCHASETIMELIMIT
)))
1001 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
1002 form_str(ERR_NOSUCHNICK
), user
);
1011 * get_client_name - Return the name of the client
1012 * for various tracking and
1013 * admin purposes. The main purpose of this function is to
1014 * return the "socket host" name of the client, if that
1015 * differs from the advertised name (other than case).
1016 * But, this can be used to any client structure.
1019 * Watch out the allocation of "nbuf", if either source_p->name
1020 * or source_p->sockhost gets changed into pointers instead of
1021 * directly allocated within the structure...
1024 * Function return either a pointer to the structure (source_p) or
1025 * to internal buffer (nbuf). *NEVER* use the returned pointer
1026 * to modify what it points!!!
1030 get_client_name(struct Client
*client
, int showip
)
1032 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
1034 s_assert(NULL
!= client
);
1038 if(MyConnect(client
))
1040 if(!irccmp(client
->name
, client
->host
))
1041 return client
->name
;
1043 if(ConfigFileEntry
.hide_spoof_ips
&&
1044 showip
== SHOW_IP
&& IsIPSpoof(client
))
1046 if(IsAnyServer(client
))
1049 /* And finally, let's get the host information, ip or name */
1053 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
1054 client
->name
, client
->username
,
1058 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
1059 client
->name
, client
->username
);
1062 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
1063 client
->name
, client
->username
, client
->host
);
1068 /* As pointed out by Adel Mezibra
1069 * Neph|l|m@EFnet. Was missing a return here.
1071 return client
->name
;
1074 /* log_client_name()
1076 * This version is the same as get_client_name, but doesnt contain the
1077 * code that will hide IPs always. This should be used for logfiles.
1080 log_client_name(struct Client
*target_p
, int showip
)
1082 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
1084 if(target_p
== NULL
)
1087 if(MyConnect(target_p
))
1089 if(irccmp(target_p
->name
, target_p
->host
) == 0)
1090 return target_p
->name
;
1095 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
1096 target_p
->username
, target_p
->sockhost
);
1100 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
1101 target_p
->username
, target_p
->host
);
1107 return target_p
->name
;
1110 /* is_remote_connect - Returns whether a server was /connect'ed by a remote
1111 * oper (send notices netwide) */
1113 is_remote_connect(struct Client
*client_p
)
1115 struct Client
*oper
;
1117 if (client_p
->serv
== NULL
)
1119 oper
= find_named_person(client_p
->serv
->by
);
1120 return oper
!= NULL
&& IsOper(oper
) && !MyConnect(oper
);
1124 free_exited_clients(void *unused
)
1126 rb_dlink_node
*ptr
, *next
;
1127 struct Client
*target_p
;
1129 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_list
.head
)
1131 target_p
= ptr
->data
;
1133 #ifdef DEBUG_EXITED_CLIENTS
1135 struct abort_client
*abt
;
1136 rb_dlink_node
*aptr
;
1139 RB_DLINK_FOREACH(aptr
, abort_list
.head
)
1142 if(abt
->client
== target_p
)
1145 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1146 "On abort_list: %s stat: %u flags: %llu handler: %c",
1147 target_p
->name
, (unsigned int) target_p
->status
,
1148 (unsigned long long)target_p
->flags
, target_p
->handler
);
1149 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1150 "Please report this to the charybdis developers!");
1157 rb_dlinkDestroy(ptr
, &dead_list
);
1163 if(ptr
->data
== NULL
)
1165 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1166 "Warning: null client on dead_list!");
1167 rb_dlinkDestroy(ptr
, &dead_list
);
1170 release_client_state(target_p
);
1171 free_client(target_p
);
1172 rb_dlinkDestroy(ptr
, &dead_list
);
1175 #ifdef DEBUG_EXITED_CLIENTS
1176 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_remote_list
.head
)
1178 target_p
= ptr
->data
;
1180 if(ptr
->data
== NULL
)
1182 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1183 "Warning: null client on dead_list!");
1184 rb_dlinkDestroy(ptr
, &dead_list
);
1187 release_client_state(target_p
);
1188 free_client(target_p
);
1189 rb_dlinkDestroy(ptr
, &dead_remote_list
);
1196 ** Remove all clients that depend on source_p; assumes all (S)QUITs have
1197 ** already been sent. we make sure to exit a server's dependent clients
1198 ** and servers before the server itself; exit_one_client takes care of
1199 ** actually removing things off llists. tweaked from +CSr31 -orabidoo
1202 * added sanity test code.... source_p->serv might be NULL...
1205 recurse_remove_clients(struct Client
*source_p
, const char *comment
)
1207 struct Client
*target_p
;
1208 rb_dlink_node
*ptr
, *ptr_next
;
1213 if(source_p
->serv
== NULL
) /* oooops. uh this is actually a major bug */
1216 /* this is very ugly, but it saves cpu :P */
1217 if(ConfigFileEntry
.nick_delay
> 0)
1219 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1221 target_p
= ptr
->data
;
1222 target_p
->flags
|= FLAGS_KILLED
;
1223 add_nd_entry(target_p
->name
);
1225 if(!IsDead(target_p
) && !IsClosing(target_p
))
1226 exit_remote_client(NULL
, target_p
, &me
, comment
);
1231 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1233 target_p
= ptr
->data
;
1234 target_p
->flags
|= FLAGS_KILLED
;
1236 if(!IsDead(target_p
) && !IsClosing(target_p
))
1237 exit_remote_client(NULL
, target_p
, &me
, comment
);
1241 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1243 target_p
= ptr
->data
;
1244 recurse_remove_clients(target_p
, comment
);
1245 qs_server(NULL
, target_p
, &me
, comment
);
1250 ** Remove *everything* that depends on source_p, from all lists, and sending
1251 ** all necessary SQUITs. source_p itself is still on the lists,
1252 ** and its SQUITs have been sent except for the upstream one -orabidoo
1255 remove_dependents(struct Client
*client_p
,
1256 struct Client
*source_p
,
1257 struct Client
*from
, const char *comment
, const char *comment1
)
1260 rb_dlink_node
*ptr
, *next
;
1262 RB_DLINK_FOREACH_SAFE(ptr
, next
, serv_list
.head
)
1266 if(IsMe(to
) || to
== source_p
->from
|| to
== client_p
)
1269 sendto_one(to
, "SQUIT %s :%s", get_id(source_p
, to
), comment
);
1272 recurse_remove_clients(source_p
, comment1
);
1276 exit_aborted_clients(void *unused
)
1278 struct abort_client
*abt
;
1279 rb_dlink_node
*ptr
, *next
;
1280 RB_DLINK_FOREACH_SAFE(ptr
, next
, abort_list
.head
)
1284 #ifdef DEBUG_EXITED_CLIENTS
1286 if(rb_dlinkFind(abt
->client
, &dead_list
))
1289 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1290 "On dead_list: %s stat: %u flags: %llu handler: %c",
1291 abt
->client
->name
, (unsigned int) abt
->client
->status
,
1292 (unsigned long long)abt
->client
->flags
, abt
->client
->handler
);
1293 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1294 "Please report this to the charybdis developers!");
1300 s_assert(*((unsigned long*)abt
->client
) != 0xdeadbeef); /* This is lame but its a debug thing */
1301 rb_dlinkDelete(ptr
, &abort_list
);
1303 if(IsAnyServer(abt
->client
))
1304 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1305 "Closing link to %s: %s",
1306 abt
->client
->name
, abt
->notice
);
1308 /* its no longer on abort list - we *must* remove
1309 * FLAGS_CLOSING otherwise exit_client() will not run --fl
1311 abt
->client
->flags
&= ~FLAGS_CLOSING
;
1312 exit_client(abt
->client
, abt
->client
, &me
, abt
->notice
);
1319 * dead_link - Adds client to a list of clients that need an exit_client()
1322 dead_link(struct Client
*client_p
, int sendqex
)
1324 struct abort_client
*abt
;
1326 s_assert(!IsMe(client_p
));
1327 if(IsDead(client_p
) || IsClosing(client_p
) || IsMe(client_p
))
1330 abt
= (struct abort_client
*) rb_malloc(sizeof(struct abort_client
));
1333 rb_strlcpy(abt
->notice
, "Max SendQ exceeded", sizeof(abt
->notice
));
1335 snprintf(abt
->notice
, sizeof(abt
->notice
), "Write error: %s", strerror(errno
));
1337 abt
->client
= client_p
;
1338 SetIOError(client_p
);
1340 SetClosing(client_p
);
1341 rb_dlinkAdd(abt
, &abt
->node
, &abort_list
);
1345 /* This does the remove of the user from channels..local or remote */
1347 exit_generic_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1348 const char *comment
)
1350 rb_dlink_node
*ptr
, *next_ptr
;
1352 if(IsOper(source_p
))
1353 rb_dlinkFindDestroy(source_p
, &oper_list
);
1355 sendto_common_channels_local(source_p
, NOCAPS
, NOCAPS
, ":%s!%s@%s QUIT :%s",
1357 source_p
->username
, source_p
->host
, comment
);
1359 remove_user_from_channels(source_p
);
1361 /* Should not be in any channels now */
1362 s_assert(source_p
->user
->channel
.head
== NULL
);
1364 /* Clean up invitefield */
1365 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, source_p
->user
->invited
.head
)
1367 del_invite(ptr
->data
, source_p
);
1370 /* Clean up allow lists */
1371 del_all_accepts(source_p
);
1373 whowas_add_history(source_p
, 0);
1374 whowas_off_history(source_p
);
1376 monitor_signoff(source_p
);
1378 if(has_id(source_p
))
1379 del_from_id_hash(source_p
->id
, source_p
);
1381 del_from_hostname_hash(source_p
->orighost
, source_p
);
1382 del_from_client_hash(source_p
->name
, source_p
);
1383 remove_client_from_list(source_p
);
1387 * Assumes IsPerson(source_p) && !MyConnect(source_p)
1391 exit_remote_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1392 const char *comment
)
1394 exit_generic_client(client_p
, source_p
, from
, comment
);
1396 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1398 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->users
);
1401 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1403 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1404 ":%s QUIT :%s", use_id(source_p
), comment
);
1408 #ifdef DEBUG_EXITED_CLIENTS
1409 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1411 rb_dlinkAddAlloc(source_p
, &dead_list
);
1413 return(CLIENT_EXITED
);
1417 * This assumes IsUnknown(source_p) == true and MyConnect(source_p) == true
1421 exit_unknown_client(struct Client
*client_p
, /* The local client originating the
1422 * exit or NULL, if this exit is
1423 * generated by this server for
1425 * This will not get any of the
1426 * generated messages. */
1427 struct Client
*source_p
, /* Client exiting */
1428 struct Client
*from
, /* Client firing off this Exit,
1430 const char *comment
)
1432 authd_abort_client(source_p
);
1433 rb_dlinkDelete(&source_p
->localClient
->tnode
, &unknown_list
);
1435 if(!IsIOError(source_p
))
1436 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)",
1437 source_p
->user
!= NULL
? source_p
->host
: "127.0.0.1",
1440 close_connection(source_p
);
1442 if(has_id(source_p
))
1443 del_from_id_hash(source_p
->id
, source_p
);
1445 del_from_hostname_hash(source_p
->host
, source_p
);
1446 if (!IsAnyServer(source_p
))
1447 del_from_client_hash(source_p
->name
, source_p
);
1448 remove_client_from_list(source_p
);
1450 rb_dlinkAddAlloc(source_p
, &dead_list
);
1452 /* Note that we don't need to add unknowns to the dead_list */
1453 return(CLIENT_EXITED
);
1457 exit_remote_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1458 const char *comment
)
1460 static char comment1
[(HOSTLEN
*2)+2];
1461 static char newcomment
[BUFSIZE
];
1462 struct Client
*target_p
;
1464 if(ConfigServerHide
.flatten_links
)
1465 strcpy(comment1
, "*.net *.split");
1468 strcpy(comment1
, source_p
->servptr
->name
);
1469 strcat(comment1
, " ");
1470 strcat(comment1
, source_p
->name
);
1473 snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1474 from
->name
, comment
);
1476 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1478 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1480 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1481 target_p
= source_p
->from
;
1483 if(target_p
!= NULL
&& IsServer(target_p
) && target_p
!= client_p
&&
1484 !IsMe(target_p
) && (source_p
->flags
& FLAGS_KILLED
) == 0)
1486 sendto_one(target_p
, ":%s SQUIT %s :%s",
1487 get_id(from
, target_p
), get_id(source_p
, target_p
),
1491 if(has_id(source_p
))
1492 del_from_id_hash(source_p
->id
, source_p
);
1494 del_from_client_hash(source_p
->name
, source_p
);
1495 remove_client_from_list(source_p
);
1497 scache_split(source_p
->serv
->nameinfo
);
1500 #ifdef DEBUG_EXITED_CLIENTS
1501 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1503 rb_dlinkAddAlloc(source_p
, &dead_list
);
1509 qs_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1510 const char *comment
)
1512 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1513 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1517 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1519 if(has_id(source_p
))
1520 del_from_id_hash(source_p
->id
, source_p
);
1522 del_from_client_hash(source_p
->name
, source_p
);
1523 remove_client_from_list(source_p
);
1524 scache_split(source_p
->serv
->nameinfo
);
1527 rb_dlinkAddAlloc(source_p
, &dead_list
);
1532 exit_local_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1533 const char *comment
)
1535 static char comment1
[(HOSTLEN
*2)+2];
1536 static char newcomment
[BUFSIZE
];
1537 unsigned int sendk
, recvk
;
1539 rb_dlinkDelete(&source_p
->localClient
->tnode
, &serv_list
);
1540 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1542 sendk
= source_p
->localClient
->sendK
;
1543 recvk
= source_p
->localClient
->receiveK
;
1545 /* Always show source here, so the server notices show
1546 * which side initiated the split -- jilles
1548 snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1549 from
== source_p
? me
.name
: from
->name
, comment
);
1550 if (!IsIOError(source_p
))
1551 sendto_one(source_p
, "SQUIT %s :%s", use_id(source_p
),
1553 if(client_p
!= NULL
&& source_p
!= client_p
&& !IsIOError(source_p
))
1555 sendto_one(source_p
, "ERROR :Closing Link: 127.0.0.1 %s (%s)",
1556 source_p
->name
, comment
);
1559 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1560 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1565 close_connection(source_p
);
1567 if(ConfigServerHide
.flatten_links
)
1568 strcpy(comment1
, "*.net *.split");
1571 strcpy(comment1
, source_p
->servptr
->name
);
1572 strcat(comment1
, " ");
1573 strcat(comment1
, source_p
->name
);
1576 if(source_p
->serv
!= NULL
)
1577 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1579 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "%s was connected"
1580 " for %ld seconds. %d/%d sendK/recvK.",
1581 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1583 ilog(L_SERVER
, "%s was connected for %ld seconds. %d/%d sendK/recvK.",
1584 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1586 if(has_id(source_p
))
1587 del_from_id_hash(source_p
->id
, source_p
);
1589 del_from_client_hash(source_p
->name
, source_p
);
1590 remove_client_from_list(source_p
);
1591 scache_split(source_p
->serv
->nameinfo
);
1594 rb_dlinkAddAlloc(source_p
, &dead_list
);
1600 * This assumes IsPerson(source_p) == true && MyConnect(source_p) == true
1604 exit_local_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1605 const char *comment
)
1607 unsigned long on_for
;
1610 exit_generic_client(client_p
, source_p
, from
, comment
);
1611 clear_monitor(source_p
);
1613 s_assert(IsPerson(source_p
));
1614 rb_dlinkDelete(&source_p
->localClient
->tnode
, &lclient_list
);
1615 rb_dlinkDelete(&source_p
->lnode
, &me
.serv
->users
);
1617 if(IsOper(source_p
))
1618 rb_dlinkFindDestroy(source_p
, &local_oper_list
);
1620 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
1621 "Client exiting: %s (%s@%s) [%s] [%s]",
1623 source_p
->username
, source_p
->host
, comment
,
1624 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255");
1626 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
1627 "CLIEXIT %s %s %s %s 0 %s",
1628 source_p
->name
, source_p
->username
, source_p
->host
,
1629 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255",
1632 on_for
= rb_current_time() - source_p
->localClient
->firsttime
;
1634 ilog(L_USER
, "%s (%3lu:%02lu:%02lu): %s!%s@%s %s %d/%d",
1635 rb_ctime(rb_current_time(), tbuf
, sizeof(tbuf
)), on_for
/ 3600,
1636 (on_for
% 3600) / 60, on_for
% 60,
1637 source_p
->name
, source_p
->username
, source_p
->host
,
1639 source_p
->localClient
->sendK
, source_p
->localClient
->receiveK
);
1641 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)", source_p
->host
, comment
);
1642 close_connection(source_p
);
1644 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1646 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1647 ":%s QUIT :%s", use_id(source_p
), comment
);
1651 rb_dlinkAddAlloc(source_p
, &dead_list
);
1652 return(CLIENT_EXITED
);
1657 ** exit_client - This is old "m_bye". Name changed, because this is not a
1658 ** protocol function, but a general server utility function.
1660 ** This function exits a client of *any* type (user, server, etc)
1661 ** from this server. Also, this generates all necessary prototol
1662 ** messages that this exit may cause.
1664 ** 1) If the client is a local client, then this implicitly
1665 ** exits all other clients depending on this connection (e.g.
1666 ** remote clients having 'from'-field that points to this.
1668 ** 2) If the client is a remote client, then only this is exited.
1670 ** For convenience, this function returns a suitable value for
1671 ** m_function return value:
1673 ** CLIENT_EXITED if (client_p == source_p)
1674 ** 0 if (client_p != source_p)
1677 exit_client(struct Client
*client_p
, /* The local client originating the
1678 * exit or NULL, if this exit is
1679 * generated by this server for
1681 * This will not get any of the
1682 * generated messages. */
1683 struct Client
*source_p
, /* Client exiting */
1684 struct Client
*from
, /* Client firing off this Exit,
1686 const char *comment
/* Reason for the exit */
1691 hook_data_client_exit hdata
;
1692 if(IsClosing(source_p
))
1695 /* note, this HAS to be here, when we exit a client we attempt to
1696 * send them data, if this generates a write error we must *not* add
1697 * them to the abort list --fl
1699 SetClosing(source_p
);
1701 hdata
.local_link
= client_p
;
1702 hdata
.target
= source_p
;
1704 hdata
.comment
= comment
;
1705 call_hook(h_client_exit
, &hdata
);
1707 if(MyConnect(source_p
))
1709 /* Local clients of various types */
1710 if(IsPerson(source_p
))
1711 ret
= exit_local_client(client_p
, source_p
, from
, comment
);
1712 else if(IsServer(source_p
))
1713 ret
= exit_local_server(client_p
, source_p
, from
, comment
);
1714 /* IsUnknown || IsConnecting || IsHandShake */
1715 else if(!IsReject(source_p
))
1716 ret
= exit_unknown_client(client_p
, source_p
, from
, comment
);
1721 if(IsPerson(source_p
))
1722 ret
= exit_remote_client(client_p
, source_p
, from
, comment
);
1723 else if(IsServer(source_p
))
1724 ret
= exit_remote_server(client_p
, source_p
, from
, comment
);
1727 call_hook(h_after_client_exit
, NULL
);
1733 * Count up local client memory
1736 /* XXX one common Client list now */
1738 count_local_client_memory(size_t * count
, size_t * local_client_memory_used
)
1741 rb_bh_usage(lclient_heap
, count
, NULL
, &lusage
, NULL
);
1742 *local_client_memory_used
= lusage
+ (*count
* (sizeof(void *) + sizeof(struct Client
)));
1746 * Count up remote client memory
1749 count_remote_client_memory(size_t * count
, size_t * remote_client_memory_used
)
1751 size_t lcount
, rcount
;
1752 rb_bh_usage(lclient_heap
, &lcount
, NULL
, NULL
, NULL
);
1753 rb_bh_usage(client_heap
, &rcount
, NULL
, NULL
, NULL
);
1754 *count
= rcount
- lcount
;
1755 *remote_client_memory_used
= *count
* (sizeof(void *) + sizeof(struct Client
));
1760 * accept processing, this adds a form of "caller ID" to ircd
1762 * If a client puts themselves into "caller ID only" mode,
1763 * only clients that match a client pointer they have put on
1764 * the accept list will be allowed to message them.
1766 * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1768 * [target.allow_list] -> [ source1 ] -> [source2 ]
1770 * i.e. a target will have a link list of source pointers it will allow
1771 * each source client then has a back pointer pointing back
1772 * to the client that has it on its accept list.
1773 * This allows for exit_one_client to remove these now bogus entries
1774 * from any client having an accept on them.
1779 * inputs - pointer to exiting client
1781 * side effects - Walk through given clients allow_list and on_allow_list
1782 * remove all references to this client
1785 del_all_accepts(struct Client
*client_p
)
1788 rb_dlink_node
*next_ptr
;
1789 struct Client
*target_p
;
1791 if(MyClient(client_p
) && client_p
->localClient
->allow_list
.head
)
1793 /* clear this clients accept list, and remove them from
1794 * everyones on_accept_list
1796 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->localClient
->allow_list
.head
)
1798 target_p
= ptr
->data
;
1799 rb_dlinkFindDestroy(client_p
, &target_p
->on_allow_list
);
1800 rb_dlinkDestroy(ptr
, &client_p
->localClient
->allow_list
);
1804 /* remove this client from everyones accept list */
1805 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
1807 target_p
= ptr
->data
;
1808 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
1809 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
1814 * show_ip() - asks if the true IP should be shown when source is
1815 * asking for info about target
1817 * Inputs - source_p who is asking
1818 * - target_p who do we want the info on
1819 * Output - returns 1 if clear IP can be shown, otherwise 0
1820 * Side Effects - none
1824 show_ip(struct Client
*source_p
, struct Client
*target_p
)
1826 if(IsAnyServer(target_p
))
1830 else if(IsIPSpoof(target_p
))
1832 /* source == NULL indicates message is being sent
1835 if(!ConfigFileEntry
.hide_spoof_ips
&&
1836 (source_p
== NULL
|| MyOper(source_p
)))
1840 else if(IsDynSpoof(target_p
) && (source_p
!= NULL
&& !IsOper(source_p
)))
1847 show_ip_conf(struct ConfItem
*aconf
, struct Client
*source_p
)
1849 if(IsConfDoSpoofIp(aconf
))
1851 if(!ConfigFileEntry
.hide_spoof_ips
&& MyOper(source_p
))
1861 show_ip_whowas(struct Whowas
*whowas
, struct Client
*source_p
)
1863 if(whowas
->flags
& WHOWAS_IP_SPOOFING
)
1864 if(ConfigFileEntry
.hide_spoof_ips
|| !MyOper(source_p
))
1866 if(whowas
->flags
& WHOWAS_DYNSPOOF
)
1867 if(!IsOper(source_p
))
1875 * inputs - pointer to client struct
1876 * output - pointer to struct User
1877 * side effects - add's an User information block to a client
1878 * if it was not previously allocated.
1881 make_user(struct Client
*client_p
)
1885 user
= client_p
->user
;
1888 user
= (struct User
*) rb_bh_alloc(user_heap
);
1890 client_p
->user
= user
;
1898 * inputs - pointer to client struct
1899 * output - pointer to server_t
1900 * side effects - add's an Server information block to a client
1901 * if it was not previously allocated.
1904 make_server(struct Client
*client_p
)
1906 struct Server
*serv
= client_p
->serv
;
1910 serv
= (struct Server
*) rb_malloc(sizeof(struct Server
));
1911 client_p
->serv
= serv
;
1913 return client_p
->serv
;
1919 * inputs - pointer to user struct
1920 * - pointer to client struct
1922 * side effects - Decrease user reference count by one and release block,
1923 * if count reaches 0
1926 free_user(struct User
*user
, struct Client
*client_p
)
1928 free_away(client_p
);
1930 if(--user
->refcnt
<= 0)
1933 rb_free((char *) user
->away
);
1934 rb_free(user
->opername
);
1936 privilegeset_unref(user
->privset
);
1940 if(user
->refcnt
< 0 || user
->invited
.head
|| user
->channel
.head
)
1942 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1943 "* %p user (%s!%s@%s) %p %p %p %lu %d *",
1945 client_p
? client_p
->
1952 rb_dlink_list_length(&user
->channel
),
1954 s_assert(!user
->refcnt
);
1955 s_assert(!user
->invited
.head
);
1956 s_assert(!user
->channel
.head
);
1959 rb_bh_free(user_heap
, user
);
1964 allocate_away(struct Client
*client_p
)
1966 if(client_p
->user
->away
== NULL
)
1967 client_p
->user
->away
= rb_bh_alloc(away_heap
);
1972 free_away(struct Client
*client_p
)
1974 if(client_p
->user
!= NULL
&& client_p
->user
->away
!= NULL
) {
1975 rb_bh_free(away_heap
, client_p
->user
->away
);
1976 client_p
->user
->away
= NULL
;
1985 for(i
= 0; i
< 3; i
++)
1986 current_uid
[i
] = me
.id
[i
];
1988 for(i
= 3; i
< 9; i
++)
1989 current_uid
[i
] = 'A';
1991 current_uid
[9] = '\0';
1998 static int flipped
= 0;
2002 for(i
= 8; i
> 3; i
--)
2004 if(current_uid
[i
] == 'Z')
2006 current_uid
[i
] = '0';
2009 else if(current_uid
[i
] != '9')
2015 current_uid
[i
] = 'A';
2018 /* if this next if() triggers, we're fucked. */
2019 if(current_uid
[3] == 'Z')
2021 current_uid
[i
] = 'A';
2027 /* if this happens..well, i'm not sure what to say, but lets handle it correctly */
2028 if(rb_unlikely(flipped
))
2030 /* this slows down uid generation a bit... */
2031 if(find_id(current_uid
) != NULL
)
2039 * Close the physical connection. This function must make
2040 * MyConnect(client_p) == FALSE, and set client_p->from == NULL.
2043 close_connection(struct Client
*client_p
)
2045 s_assert(client_p
!= NULL
);
2046 if(client_p
== NULL
)
2049 s_assert(MyConnect(client_p
));
2050 if(!MyConnect(client_p
))
2053 if(IsServer(client_p
))
2055 struct server_conf
*server_p
;
2057 ServerStats
.is_sv
++;
2058 ServerStats
.is_sbs
+= client_p
->localClient
->sendB
;
2059 ServerStats
.is_sbr
+= client_p
->localClient
->receiveB
;
2060 ServerStats
.is_sti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
2063 * If the connection has been up for a long amount of time, schedule
2064 * a 'quick' reconnect, else reset the next-connect cycle.
2066 if((server_p
= find_server_conf(client_p
->name
)) != NULL
)
2069 * Reschedule a faster reconnect, if this was a automatically
2070 * connected configuration entry. (Note that if we have had
2071 * a rehash in between, the status has been changed to
2072 * CONF_ILLEGAL). But only do this if it was a "good" link.
2074 server_p
->hold
= time(NULL
);
2076 (server_p
->hold
- client_p
->localClient
->lasttime
>
2077 HANGONGOODLINK
) ? HANGONRETRYDELAY
: ConFreq(server_p
->class);
2081 else if(IsClient(client_p
))
2083 ServerStats
.is_cl
++;
2084 ServerStats
.is_cbs
+= client_p
->localClient
->sendB
;
2085 ServerStats
.is_cbr
+= client_p
->localClient
->receiveB
;
2086 ServerStats
.is_cti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
2089 ServerStats
.is_ni
++;
2091 client_release_connids(client_p
);
2093 if(client_p
->localClient
->F
!= NULL
)
2095 /* attempt to flush any pending dbufs. Evil, but .. -- adrian */
2096 if(!IsIOError(client_p
))
2097 send_queued(client_p
);
2099 rb_close(client_p
->localClient
->F
);
2100 client_p
->localClient
->F
= NULL
;
2103 rb_linebuf_donebuf(&client_p
->localClient
->buf_sendq
);
2104 rb_linebuf_donebuf(&client_p
->localClient
->buf_recvq
);
2105 detach_conf(client_p
);
2107 /* XXX shouldnt really be done here. */
2108 detach_server_conf(client_p
);
2110 client_p
->from
= NULL
; /* ...this should catch them! >:) --msa */
2111 ClearMyConnect(client_p
);
2112 SetIOError(client_p
);
2118 error_exit_client(struct Client
*client_p
, int error
)
2121 * ...hmm, with non-blocking sockets we might get
2122 * here from quite valid reasons, although.. why
2123 * would select report "data available" when there
2124 * wasn't... so, this must be an error anyway... --msa
2125 * actually, EOF occurs when read() returns 0 and
2126 * in due course, select() returns that fd as ready
2127 * for reading even though it ends up being an EOF. -avalon
2130 int current_error
= rb_get_sockerr(client_p
->localClient
->F
);
2132 SetIOError(client_p
);
2134 if(IsServer(client_p
) || IsHandshake(client_p
))
2138 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2139 "Server %s closed the connection",
2142 ilog(L_SERVER
, "Server %s closed the connection",
2143 log_client_name(client_p
, SHOW_IP
));
2147 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2148 "Lost connection to %s: %s",
2149 client_p
->name
, strerror(current_error
));
2150 ilog(L_SERVER
, "Lost connection to %s: %s",
2151 log_client_name(client_p
, SHOW_IP
), strerror(current_error
));
2156 rb_strlcpy(errmsg
, "Remote host closed the connection", sizeof(errmsg
));
2158 snprintf(errmsg
, sizeof(errmsg
), "Read error: %s", strerror(current_error
));
2160 exit_client(client_p
, client_p
, &me
, errmsg
);