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
;
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
);
133 * connid_get - allocate a connid
136 * outputs - a connid token which is used to represent a logical circuit
137 * side effects - current_connid is incremented, possibly multiple times.
138 * the association of the connid to it's client is committed.
141 connid_get(struct Client
*client_p
)
143 s_assert(MyClient(client_p
));
144 if (!MyClient(client_p
))
147 /* find a connid that is available */
148 while (find_cli_connid_hash(++current_connid
) != NULL
)
150 /* handle wraparound, current_connid must NEVER be 0 */
151 if (current_connid
== 0)
155 add_to_cli_connid_hash(client_p
, current_connid
);
156 rb_dlinkAddAlloc(RB_UINT_TO_POINTER(current_connid
), &client_p
->localClient
->connids
);
158 return current_connid
;
162 * connid_put - free a connid
164 * inputs - connid to free
166 * side effects - connid bookkeeping structures are freed
169 connid_put(uint32_t id
)
171 struct Client
*client_p
;
177 client_p
= find_cli_connid_hash(id
);
178 if (client_p
== NULL
)
181 del_from_cli_connid_hash(id
);
182 rb_dlinkFindDestroy(RB_UINT_TO_POINTER(id
), &client_p
->localClient
->connids
);
186 * client_release_connids - release any connids still attached to a client
188 * inputs - client to garbage collect
190 * side effects - client's connids are garbage collected
193 client_release_connids(struct Client
*client_p
)
195 rb_dlink_node
*ptr
, *ptr2
;
197 s_assert(MyClient(client_p
));
198 if (!MyClient(client_p
))
201 RB_DLINK_FOREACH_SAFE(ptr
, ptr2
, client_p
->localClient
->connids
.head
)
202 connid_put(RB_POINTER_TO_UINT(ptr
->data
));
206 * make_client - create a new Client struct and set it to initial state.
208 * from == NULL, create local client (a client connected
211 * from, create remote client (behind a socket
212 * associated with the client defined by
213 * 'from'). ('from' is a local client!!).
216 make_client(struct Client
*from
)
218 struct Client
*client_p
= NULL
;
219 struct LocalUser
*localClient
;
221 client_p
= rb_bh_alloc(client_heap
);
225 client_p
->from
= client_p
; /* 'from' of local client is self! */
227 localClient
= rb_bh_alloc(lclient_heap
);
228 SetMyConnect(client_p
);
229 client_p
->localClient
= localClient
;
231 client_p
->localClient
->lasttime
= client_p
->localClient
->firsttime
= rb_current_time();
233 client_p
->localClient
->F
= NULL
;
235 client_p
->preClient
= rb_bh_alloc(pclient_heap
);
237 /* as good a place as any... */
238 rb_dlinkAdd(client_p
, &client_p
->localClient
->tnode
, &unknown_list
);
241 { /* from is not NULL */
242 client_p
->localClient
= NULL
;
243 client_p
->preClient
= NULL
;
244 client_p
->from
= from
; /* 'from' of local client is self! */
247 SetUnknown(client_p
);
248 strcpy(client_p
->username
, "unknown");
254 free_pre_client(struct Client
*client_p
)
256 s_assert(NULL
!= client_p
);
258 if(client_p
->preClient
== NULL
)
261 s_assert(client_p
->preClient
->authd_cid
== 0);
263 rb_free(client_p
->preClient
->authd_data
);
264 rb_free(client_p
->preClient
->authd_reason
);
266 rb_bh_free(pclient_heap
, client_p
->preClient
);
267 client_p
->preClient
= NULL
;
271 free_local_client(struct Client
*client_p
)
273 s_assert(NULL
!= client_p
);
274 s_assert(&me
!= client_p
);
276 if(client_p
->localClient
== NULL
)
280 * clean up extra sockets from P-lines which have been discarded.
282 if(client_p
->localClient
->listener
)
284 s_assert(0 < client_p
->localClient
->listener
->ref_count
);
285 if(0 == --client_p
->localClient
->listener
->ref_count
286 && !client_p
->localClient
->listener
->active
)
287 free_listener(client_p
->localClient
->listener
);
288 client_p
->localClient
->listener
= 0;
291 client_release_connids(client_p
);
292 if(client_p
->localClient
->F
!= NULL
)
294 rb_close(client_p
->localClient
->F
);
297 if(client_p
->localClient
->passwd
)
299 memset(client_p
->localClient
->passwd
, 0,
300 strlen(client_p
->localClient
->passwd
));
301 rb_free(client_p
->localClient
->passwd
);
304 rb_free(client_p
->localClient
->auth_user
);
305 rb_free(client_p
->localClient
->challenge
);
306 rb_free(client_p
->localClient
->fullcaps
);
307 rb_free(client_p
->localClient
->opername
);
308 rb_free(client_p
->localClient
->mangledhost
);
309 if (client_p
->localClient
->privset
)
310 privilegeset_unref(client_p
->localClient
->privset
);
313 ssld_decrement_clicount(client_p
->localClient
->ssl_ctl
);
315 if (IsCapable(client_p
, CAP_ZIP
))
316 ssld_decrement_clicount(client_p
->localClient
->z_ctl
);
318 if (client_p
->localClient
->ws_ctl
!= NULL
)
319 wsockd_decrement_clicount(client_p
->localClient
->ws_ctl
);
321 rb_bh_free(lclient_heap
, client_p
->localClient
);
322 client_p
->localClient
= NULL
;
326 free_client(struct Client
*client_p
)
328 s_assert(NULL
!= client_p
);
329 s_assert(&me
!= client_p
);
330 free_local_client(client_p
);
331 free_pre_client(client_p
);
332 rb_free(client_p
->certfp
);
333 rb_bh_free(client_heap
, client_p
);
337 * check_pings - go through the local client list and check activity
338 * kill off stuff that should die
340 * inputs - NOT USED (from event)
341 * output - next time_t when check_pings() should be called again
345 * A PING can be sent to clients as necessary.
347 * Client/Server ping outs are handled.
351 * Addon from adrian. We used to call this after nextping seconds,
352 * however I've changed it to run once a second. This is only for
353 * PING timeouts, not K/etc-line checks (thanks dianora!). Having it
354 * run once a second makes life a lot easier - when a new client connects
355 * and they need a ping in 4 seconds, if nextping was set to 20 seconds
356 * we end up waiting 20 seconds. This is stupid. :-)
357 * I will optimise (hah!) check_pings() once I've finished working on
358 * tidying up other network IO evilnesses.
363 check_pings(void *notused
)
365 check_pings_list(&lclient_list
);
366 check_pings_list(&serv_list
);
367 check_unknowns_list(&unknown_list
);
373 * inputs - pointer to list to check
378 check_pings_list(rb_dlink_list
* list
)
380 char scratch
[32]; /* way too generous but... */
381 struct Client
*client_p
; /* current local client_p being examined */
382 int ping
= 0; /* ping time value from client */
383 rb_dlink_node
*ptr
, *next_ptr
;
385 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
387 client_p
= ptr
->data
;
389 if(!MyConnect(client_p
) || IsDead(client_p
))
392 ping
= get_client_ping(client_p
);
394 if(ping
< (rb_current_time() - client_p
->localClient
->lasttime
))
397 * If the client/server hasnt talked to us in 2*ping seconds
398 * and it has a ping time, then close its connection.
400 if(((rb_current_time() - client_p
->localClient
->lasttime
) >= (2 * ping
)
401 && (client_p
->flags
& FLAGS_PINGSENT
)))
403 if(IsServer(client_p
))
405 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
406 "No response from %s, closing link",
409 "No response from %s, closing link",
410 log_client_name(client_p
, HIDE_IP
));
412 (void) snprintf(scratch
, sizeof(scratch
),
413 "Ping timeout: %d seconds",
414 (int) (rb_current_time() - client_p
->localClient
->lasttime
));
416 exit_client(client_p
, client_p
, &me
, scratch
);
419 else if((client_p
->flags
& FLAGS_PINGSENT
) == 0)
422 * if we havent PINGed the connection and we havent
423 * heard from it in a while, PING it to make sure
426 client_p
->flags
|= FLAGS_PINGSENT
;
427 /* not nice but does the job */
428 client_p
->localClient
->lasttime
= rb_current_time() - ping
;
429 sendto_one(client_p
, "PING :%s", me
.name
);
438 * check_unknowns_list
440 * inputs - pointer to list of unknown clients
442 * side effects - unknown clients get marked for termination after n seconds
445 check_unknowns_list(rb_dlink_list
* list
)
447 rb_dlink_node
*ptr
, *next_ptr
;
448 struct Client
*client_p
;
451 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
453 client_p
= ptr
->data
;
455 if(IsDead(client_p
) || IsClosing(client_p
))
458 /* Still querying with authd */
459 if(client_p
->preClient
!= NULL
&& client_p
->preClient
->authd_cid
!= 0)
463 * Check UNKNOWN connections - if they have been in this state
464 * for > 30s, close them.
467 timeout
= IsAnyServer(client_p
) ? ConfigFileEntry
.connect_timeout
: 30;
468 if((rb_current_time() - client_p
->localClient
->firsttime
) > timeout
)
470 if(IsAnyServer(client_p
))
472 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
473 "No response from %s, closing link",
476 "No response from %s, closing link",
477 log_client_name(client_p
, HIDE_IP
));
479 exit_client(client_p
, client_p
, &me
, "Connection timed out");
485 notify_banned_client(struct Client
*client_p
, struct ConfItem
*aconf
, int ban
)
487 static const char conn_closed
[] = "Connection closed";
488 static const char d_lined
[] = "D-lined";
489 static const char k_lined
[] = "K-lined";
490 const char *reason
= NULL
;
491 const char *exit_reason
= conn_closed
;
493 if(ConfigFileEntry
.kline_with_reason
)
495 reason
= get_user_ban_reason(aconf
);
496 exit_reason
= reason
;
500 reason
= aconf
->status
== D_LINED
? d_lined
: k_lined
;
503 if(ban
== D_LINED
&& !IsPerson(client_p
))
504 sendto_one(client_p
, "NOTICE DLINE :*** You have been D-lined");
506 sendto_one(client_p
, form_str(ERR_YOUREBANNEDCREEP
),
507 me
.name
, client_p
->name
, reason
);
509 exit_client(client_p
, client_p
, &me
,
510 EmptyString(ConfigFileEntry
.kline_reason
) ? exit_reason
:
511 ConfigFileEntry
.kline_reason
);
518 * side effects - Check all connections for a pending k/dline against the
519 * client, exit the client if found.
522 check_banned_lines(void)
529 /* check_klines_event()
533 * side effects - check_klines() is called, kline_queued unset
536 check_klines_event(void *unused
)
538 kline_queued
= false;
546 * side effects - all clients will be checked for klines
551 struct Client
*client_p
;
552 struct ConfItem
*aconf
;
554 rb_dlink_node
*next_ptr
;
556 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
558 client_p
= ptr
->data
;
560 if(IsMe(client_p
) || !IsPerson(client_p
))
563 if((aconf
= find_kline(client_p
)) != NULL
)
565 if(IsExemptKline(client_p
))
567 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
568 "KLINE over-ruled for %s, client is kline_exempt [%s@%s]",
569 get_client_name(client_p
, HIDE_IP
),
570 aconf
->user
, aconf
->host
);
574 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
575 "KLINE active for %s",
576 get_client_name(client_p
, HIDE_IP
));
578 notify_banned_client(client_p
, aconf
, K_LINED
);
588 * side effects - all clients will be checked for dlines
593 struct Client
*client_p
;
594 struct ConfItem
*aconf
;
596 rb_dlink_node
*next_ptr
;
598 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
600 client_p
= ptr
->data
;
605 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
, GET_SS_FAMILY(&client_p
->localClient
->ip
))) != NULL
)
607 if(aconf
->status
& CONF_EXEMPTDLINE
)
610 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
611 "DLINE active for %s",
612 get_client_name(client_p
, HIDE_IP
));
614 notify_banned_client(client_p
, aconf
, D_LINED
);
619 /* dlines need to be checked against unknowns too */
620 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, unknown_list
.head
)
622 client_p
= ptr
->data
;
624 if((aconf
= find_dline((struct sockaddr
*)&client_p
->localClient
->ip
, GET_SS_FAMILY(&client_p
->localClient
->ip
))) != NULL
)
626 if(aconf
->status
& CONF_EXEMPTDLINE
)
629 notify_banned_client(client_p
, aconf
, D_LINED
);
638 * side effects - all clients will be checked for xlines
643 struct Client
*client_p
;
644 struct ConfItem
*aconf
;
646 rb_dlink_node
*next_ptr
;
648 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
650 client_p
= ptr
->data
;
652 if(IsMe(client_p
) || !IsPerson(client_p
))
655 if((aconf
= find_xline(client_p
->info
, 1)) != NULL
)
657 if(IsExemptKline(client_p
))
659 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
660 "XLINE over-ruled for %s, client is kline_exempt [%s]",
661 get_client_name(client_p
, HIDE_IP
),
666 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "XLINE active for %s",
667 get_client_name(client_p
, HIDE_IP
));
669 (void) exit_client(client_p
, client_p
, &me
, "Bad user info");
677 * inputs - resv, reason, time
679 * side effects - all local clients matching resv will be FNC'd
682 resv_nick_fnc(const char *mask
, const char *reason
, int temp_time
)
684 struct Client
*client_p
, *target_p
;
686 rb_dlink_node
*next_ptr
;
688 char note
[NICKLEN
+10];
690 if (!ConfigFileEntry
.resv_fnc
)
693 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, lclient_list
.head
)
695 client_p
= ptr
->data
;
697 if(IsMe(client_p
) || !IsPerson(client_p
) || IsExemptResv(client_p
))
700 /* Skip users that already have UID nicks. */
701 if(IsDigit(client_p
->name
[0]))
704 if(match_esc(mask
, client_p
->name
))
709 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
710 "RESV forced nick change for %s!%s@%s to %s; nick matched [%s] (%s)",
711 client_p
->name
, client_p
->username
, client_p
->host
, nick
, mask
, reason
);
713 sendto_realops_snomask(SNO_NCHANGE
, L_ALL
,
714 "Nick change: From %s to %s [%s@%s]",
715 client_p
->name
, nick
, client_p
->username
, client_p
->host
);
720 sendto_one_notice(client_p
,
721 ":*** Nick %s is temporarily unavailable on this server.",
726 sendto_one_notice(client_p
,
727 ":*** Nick %s is no longer available on this server.",
731 /* Do all of the nick-changing gymnastics. */
732 client_p
->tsinfo
= rb_current_time();
733 whowas_add_history(client_p
, 1);
735 monitor_signoff(client_p
);
737 invalidate_bancache_user(client_p
);
739 sendto_common_channels_local(client_p
, NOCAPS
, NOCAPS
, ":%s!%s@%s NICK :%s",
740 client_p
->name
, client_p
->username
, client_p
->host
, nick
);
741 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
, ":%s NICK %s :%ld",
742 use_id(client_p
), nick
, (long) client_p
->tsinfo
);
744 del_from_client_hash(client_p
->name
, client_p
);
745 rb_strlcpy(client_p
->name
, nick
, sizeof(client_p
->name
));
746 add_to_client_hash(nick
, client_p
);
748 monitor_signon(client_p
);
750 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
752 target_p
= ptr
->data
;
753 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
754 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
757 snprintf(note
, sizeof(note
), "Nick: %s", nick
);
758 rb_note(client_p
->localClient
->F
, note
);
764 * update_client_exit_stats
766 * input - pointer to client
771 update_client_exit_stats(struct Client
*client_p
)
773 if(IsServer(client_p
))
775 sendto_realops_snomask(SNO_EXTERNAL
, L_ALL
,
776 "Server %s split from %s",
777 client_p
->name
, client_p
->servptr
->name
);
778 if(HasSentEob(client_p
))
781 else if(IsClient(client_p
))
786 if(IsInvisible(client_p
))
790 if(splitchecking
&& !splitmode
)
791 check_splitmode(NULL
);
795 * release_client_state
797 * input - pointer to client to release
802 release_client_state(struct Client
*client_p
)
804 if(client_p
->user
!= NULL
)
806 free_user(client_p
->user
, client_p
); /* try this here */
810 if(client_p
->serv
->user
!= NULL
)
811 free_user(client_p
->serv
->user
, client_p
);
812 if(client_p
->serv
->fullcaps
)
813 rb_free(client_p
->serv
->fullcaps
);
814 rb_free(client_p
->serv
);
819 * remove_client_from_list
820 * inputs - point to client to remove
822 * side effects - taken the code from ExitOneClient() for this
823 * and placed it here. - avalon
826 remove_client_from_list(struct Client
*client_p
)
828 s_assert(NULL
!= client_p
);
833 /* A client made with make_client()
834 * is on the unknown_list until removed.
835 * If it =does= happen to exit before its removed from that list
836 * and its =not= on the global_client_list, it will core here.
837 * short circuit that case now -db
839 if(client_p
->node
.prev
== NULL
&& client_p
->node
.next
== NULL
)
842 rb_dlinkDelete(&client_p
->node
, &global_client_list
);
844 update_client_exit_stats(client_p
);
850 * input - nickname to check, flag for nick from local client
851 * output - 0 if erroneous, else 1
855 clean_nick(const char *nick
, int loc_client
)
859 /* nicks cant start with a digit or -, and must have a length */
860 if(*nick
== '-' || *nick
== '\0')
863 if(loc_client
&& IsDigit(*nick
))
869 if(!IsNickChar(*nick
))
874 if(len
>= NICKLEN
&& (unsigned int)len
>= ConfigFileEntry
.nicklen
)
881 * find_person - find person by (nick)name.
882 * inputs - pointer to name
883 * output - return client pointer
887 find_person(const char *name
)
889 struct Client
*c2ptr
;
891 c2ptr
= find_client(name
);
893 if(c2ptr
&& IsPerson(c2ptr
))
899 find_named_person(const char *name
)
901 struct Client
*c2ptr
;
903 c2ptr
= find_named_client(name
);
905 if(c2ptr
&& IsPerson(c2ptr
))
912 * find_chasing - find the client structure for a nick name (user)
913 * using history mechanism if necessary. If the client is not found,
914 * an error message (NO SUCH NICK) is generated. If the client was found
915 * through the history, chasing will be 1 and otherwise 0.
918 find_chasing(struct Client
*source_p
, const char *user
, int *chasing
)
922 if(MyClient(source_p
))
923 who
= find_named_person(user
);
925 who
= find_person(user
);
930 if(who
|| IsDigit(*user
))
933 if(!(who
= whowas_get_history(user
, (long) KILLCHASETIMELIMIT
)))
935 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
936 form_str(ERR_NOSUCHNICK
), user
);
945 * get_client_name - Return the name of the client
946 * for various tracking and
947 * admin purposes. The main purpose of this function is to
948 * return the "socket host" name of the client, if that
949 * differs from the advertised name (other than case).
950 * But, this can be used to any client structure.
953 * Watch out the allocation of "nbuf", if either source_p->name
954 * or source_p->sockhost gets changed into pointers instead of
955 * directly allocated within the structure...
958 * Function return either a pointer to the structure (source_p) or
959 * to internal buffer (nbuf). *NEVER* use the returned pointer
960 * to modify what it points!!!
964 get_client_name(struct Client
*client
, int showip
)
966 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
968 s_assert(NULL
!= client
);
972 if(MyConnect(client
))
974 if(!irccmp(client
->name
, client
->host
))
977 if(ConfigFileEntry
.hide_spoof_ips
&&
978 showip
== SHOW_IP
&& IsIPSpoof(client
))
980 if(IsAnyServer(client
))
983 /* And finally, let's get the host information, ip or name */
987 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
988 client
->name
, client
->username
,
992 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@255.255.255.255]",
993 client
->name
, client
->username
);
996 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]",
997 client
->name
, client
->username
, client
->host
);
1002 /* As pointed out by Adel Mezibra
1003 * Neph|l|m@EFnet. Was missing a return here.
1005 return client
->name
;
1008 /* log_client_name()
1010 * This version is the same as get_client_name, but doesnt contain the
1011 * code that will hide IPs always. This should be used for logfiles.
1014 log_client_name(struct Client
*target_p
, int showip
)
1016 static char nbuf
[HOSTLEN
* 2 + USERLEN
+ 5];
1018 if(target_p
== NULL
)
1021 if(MyConnect(target_p
))
1023 if(irccmp(target_p
->name
, target_p
->host
) == 0)
1024 return target_p
->name
;
1029 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
1030 target_p
->username
, target_p
->sockhost
);
1034 snprintf(nbuf
, sizeof(nbuf
), "%s[%s@%s]", target_p
->name
,
1035 target_p
->username
, target_p
->host
);
1041 return target_p
->name
;
1044 /* is_remote_connect - Returns whether a server was /connect'ed by a remote
1045 * oper (send notices netwide) */
1047 is_remote_connect(struct Client
*client_p
)
1049 struct Client
*oper
;
1051 if (client_p
->serv
== NULL
)
1053 oper
= find_named_person(client_p
->serv
->by
);
1054 return oper
!= NULL
&& IsOper(oper
) && !MyConnect(oper
);
1058 free_exited_clients(void *unused
)
1060 rb_dlink_node
*ptr
, *next
;
1061 struct Client
*target_p
;
1063 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_list
.head
)
1065 target_p
= ptr
->data
;
1067 #ifdef DEBUG_EXITED_CLIENTS
1069 struct abort_client
*abt
;
1070 rb_dlink_node
*aptr
;
1073 RB_DLINK_FOREACH(aptr
, abort_list
.head
)
1076 if(abt
->client
== target_p
)
1079 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1080 "On abort_list: %s stat: %u flags: %u/%u handler: %c",
1081 target_p
->name
, (unsigned int) target_p
->status
,
1082 target_p
->flags
, target_p
->flags2
, target_p
->handler
);
1083 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1084 "Please report this to the charybdis developers!");
1091 rb_dlinkDestroy(ptr
, &dead_list
);
1097 if(ptr
->data
== NULL
)
1099 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1100 "Warning: null client on dead_list!");
1101 rb_dlinkDestroy(ptr
, &dead_list
);
1104 release_client_state(target_p
);
1105 free_client(target_p
);
1106 rb_dlinkDestroy(ptr
, &dead_list
);
1109 #ifdef DEBUG_EXITED_CLIENTS
1110 RB_DLINK_FOREACH_SAFE(ptr
, next
, dead_remote_list
.head
)
1112 target_p
= ptr
->data
;
1114 if(ptr
->data
== NULL
)
1116 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1117 "Warning: null client on dead_list!");
1118 rb_dlinkDestroy(ptr
, &dead_list
);
1121 release_client_state(target_p
);
1122 free_client(target_p
);
1123 rb_dlinkDestroy(ptr
, &dead_remote_list
);
1130 ** Remove all clients that depend on source_p; assumes all (S)QUITs have
1131 ** already been sent. we make sure to exit a server's dependent clients
1132 ** and servers before the server itself; exit_one_client takes care of
1133 ** actually removing things off llists. tweaked from +CSr31 -orabidoo
1136 * added sanity test code.... source_p->serv might be NULL...
1139 recurse_remove_clients(struct Client
*source_p
, const char *comment
)
1141 struct Client
*target_p
;
1142 rb_dlink_node
*ptr
, *ptr_next
;
1147 if(source_p
->serv
== NULL
) /* oooops. uh this is actually a major bug */
1150 /* this is very ugly, but it saves cpu :P */
1151 if(ConfigFileEntry
.nick_delay
> 0)
1153 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1155 target_p
= ptr
->data
;
1156 target_p
->flags
|= FLAGS_KILLED
;
1157 add_nd_entry(target_p
->name
);
1159 if(!IsDead(target_p
) && !IsClosing(target_p
))
1160 exit_remote_client(NULL
, target_p
, &me
, comment
);
1165 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->users
.head
)
1167 target_p
= ptr
->data
;
1168 target_p
->flags
|= FLAGS_KILLED
;
1170 if(!IsDead(target_p
) && !IsClosing(target_p
))
1171 exit_remote_client(NULL
, target_p
, &me
, comment
);
1175 RB_DLINK_FOREACH_SAFE(ptr
, ptr_next
, source_p
->serv
->servers
.head
)
1177 target_p
= ptr
->data
;
1178 recurse_remove_clients(target_p
, comment
);
1179 qs_server(NULL
, target_p
, &me
, comment
);
1184 ** Remove *everything* that depends on source_p, from all lists, and sending
1185 ** all necessary SQUITs. source_p itself is still on the lists,
1186 ** and its SQUITs have been sent except for the upstream one -orabidoo
1189 remove_dependents(struct Client
*client_p
,
1190 struct Client
*source_p
,
1191 struct Client
*from
, const char *comment
, const char *comment1
)
1194 rb_dlink_node
*ptr
, *next
;
1196 RB_DLINK_FOREACH_SAFE(ptr
, next
, serv_list
.head
)
1200 if(IsMe(to
) || to
== source_p
->from
|| to
== client_p
)
1203 sendto_one(to
, "SQUIT %s :%s", get_id(source_p
, to
), comment
);
1206 recurse_remove_clients(source_p
, comment1
);
1210 exit_aborted_clients(void *unused
)
1212 struct abort_client
*abt
;
1213 rb_dlink_node
*ptr
, *next
;
1214 RB_DLINK_FOREACH_SAFE(ptr
, next
, abort_list
.head
)
1218 #ifdef DEBUG_EXITED_CLIENTS
1220 if(rb_dlinkFind(abt
->client
, &dead_list
))
1223 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1224 "On dead_list: %s stat: %u flags: %u/%u handler: %c",
1225 abt
->client
->name
, (unsigned int) abt
->client
->status
,
1226 abt
->client
->flags
, abt
->client
->flags2
, abt
->client
->handler
);
1227 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1228 "Please report this to the charybdis developers!");
1234 s_assert(*((unsigned long*)abt
->client
) != 0xdeadbeef); /* This is lame but its a debug thing */
1235 rb_dlinkDelete(ptr
, &abort_list
);
1237 if(IsAnyServer(abt
->client
))
1238 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1239 "Closing link to %s: %s",
1240 abt
->client
->name
, abt
->notice
);
1242 /* its no longer on abort list - we *must* remove
1243 * FLAGS_CLOSING otherwise exit_client() will not run --fl
1245 abt
->client
->flags
&= ~FLAGS_CLOSING
;
1246 exit_client(abt
->client
, abt
->client
, &me
, abt
->notice
);
1253 * dead_link - Adds client to a list of clients that need an exit_client()
1256 dead_link(struct Client
*client_p
, int sendqex
)
1258 struct abort_client
*abt
;
1260 s_assert(!IsMe(client_p
));
1261 if(IsDead(client_p
) || IsClosing(client_p
) || IsMe(client_p
))
1264 abt
= (struct abort_client
*) rb_malloc(sizeof(struct abort_client
));
1267 rb_strlcpy(abt
->notice
, "Max SendQ exceeded", sizeof(abt
->notice
));
1269 snprintf(abt
->notice
, sizeof(abt
->notice
), "Write error: %s", strerror(errno
));
1271 abt
->client
= client_p
;
1272 SetIOError(client_p
);
1274 SetClosing(client_p
);
1275 rb_dlinkAdd(abt
, &abt
->node
, &abort_list
);
1279 /* This does the remove of the user from channels..local or remote */
1281 exit_generic_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1282 const char *comment
)
1284 rb_dlink_node
*ptr
, *next_ptr
;
1286 if(IsOper(source_p
))
1287 rb_dlinkFindDestroy(source_p
, &oper_list
);
1289 sendto_common_channels_local(source_p
, NOCAPS
, NOCAPS
, ":%s!%s@%s QUIT :%s",
1291 source_p
->username
, source_p
->host
, comment
);
1293 remove_user_from_channels(source_p
);
1295 /* Should not be in any channels now */
1296 s_assert(source_p
->user
->channel
.head
== NULL
);
1298 /* Clean up invitefield */
1299 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, source_p
->user
->invited
.head
)
1301 del_invite(ptr
->data
, source_p
);
1304 /* Clean up allow lists */
1305 del_all_accepts(source_p
);
1307 whowas_add_history(source_p
, 0);
1308 whowas_off_history(source_p
);
1310 monitor_signoff(source_p
);
1312 if(has_id(source_p
))
1313 del_from_id_hash(source_p
->id
, source_p
);
1315 del_from_hostname_hash(source_p
->orighost
, source_p
);
1316 del_from_client_hash(source_p
->name
, source_p
);
1317 remove_client_from_list(source_p
);
1321 * Assumes IsPerson(source_p) && !MyConnect(source_p)
1325 exit_remote_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1326 const char *comment
)
1328 exit_generic_client(client_p
, source_p
, from
, comment
);
1330 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1332 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->users
);
1335 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1337 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1338 ":%s QUIT :%s", use_id(source_p
), comment
);
1342 #ifdef DEBUG_EXITED_CLIENTS
1343 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1345 rb_dlinkAddAlloc(source_p
, &dead_list
);
1347 return(CLIENT_EXITED
);
1351 * This assumes IsUnknown(source_p) == true and MyConnect(source_p) == true
1355 exit_unknown_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1356 const char *comment
)
1358 authd_abort_client(client_p
);
1359 rb_dlinkDelete(&source_p
->localClient
->tnode
, &unknown_list
);
1361 if(!IsIOError(source_p
))
1362 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)",
1363 source_p
->user
!= NULL
? source_p
->host
: "127.0.0.1",
1366 close_connection(source_p
);
1368 if(has_id(source_p
))
1369 del_from_id_hash(source_p
->id
, source_p
);
1371 del_from_hostname_hash(source_p
->host
, source_p
);
1372 del_from_client_hash(source_p
->name
, source_p
);
1373 remove_client_from_list(source_p
);
1375 rb_dlinkAddAlloc(source_p
, &dead_list
);
1377 /* Note that we don't need to add unknowns to the dead_list */
1378 return(CLIENT_EXITED
);
1382 exit_remote_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1383 const char *comment
)
1385 static char comment1
[(HOSTLEN
*2)+2];
1386 static char newcomment
[BUFSIZE
];
1387 struct Client
*target_p
;
1389 if(ConfigServerHide
.flatten_links
)
1390 strcpy(comment1
, "*.net *.split");
1393 strcpy(comment1
, source_p
->servptr
->name
);
1394 strcat(comment1
, " ");
1395 strcat(comment1
, source_p
->name
);
1398 snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1399 from
->name
, comment
);
1401 if(source_p
->serv
!= NULL
)
1402 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1404 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1405 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1409 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1410 target_p
= source_p
->from
;
1412 if(target_p
!= NULL
&& IsServer(target_p
) && target_p
!= client_p
&&
1413 !IsMe(target_p
) && (source_p
->flags
& FLAGS_KILLED
) == 0)
1415 sendto_one(target_p
, ":%s SQUIT %s :%s",
1416 get_id(from
, target_p
), get_id(source_p
, target_p
),
1420 if(has_id(source_p
))
1421 del_from_id_hash(source_p
->id
, source_p
);
1423 del_from_client_hash(source_p
->name
, source_p
);
1424 remove_client_from_list(source_p
);
1425 scache_split(source_p
->serv
->nameinfo
);
1428 #ifdef DEBUG_EXITED_CLIENTS
1429 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1431 rb_dlinkAddAlloc(source_p
, &dead_list
);
1437 qs_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1438 const char *comment
)
1440 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1441 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1445 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1447 if(has_id(source_p
))
1448 del_from_id_hash(source_p
->id
, source_p
);
1450 del_from_client_hash(source_p
->name
, source_p
);
1451 remove_client_from_list(source_p
);
1452 scache_split(source_p
->serv
->nameinfo
);
1455 rb_dlinkAddAlloc(source_p
, &dead_list
);
1460 exit_local_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1461 const char *comment
)
1463 static char comment1
[(HOSTLEN
*2)+2];
1464 static char newcomment
[BUFSIZE
];
1465 unsigned int sendk
, recvk
;
1467 rb_dlinkDelete(&source_p
->localClient
->tnode
, &serv_list
);
1468 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1470 sendk
= source_p
->localClient
->sendK
;
1471 recvk
= source_p
->localClient
->receiveK
;
1473 /* Always show source here, so the server notices show
1474 * which side initiated the split -- jilles
1476 snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1477 from
== source_p
? me
.name
: from
->name
, comment
);
1478 if (!IsIOError(source_p
))
1479 sendto_one(source_p
, "SQUIT %s :%s", use_id(source_p
),
1481 if(client_p
!= NULL
&& source_p
!= client_p
&& !IsIOError(source_p
))
1483 sendto_one(source_p
, "ERROR :Closing Link: 127.0.0.1 %s (%s)",
1484 source_p
->name
, comment
);
1487 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1488 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1493 close_connection(source_p
);
1495 if(ConfigServerHide
.flatten_links
)
1496 strcpy(comment1
, "*.net *.split");
1499 strcpy(comment1
, source_p
->servptr
->name
);
1500 strcat(comment1
, " ");
1501 strcat(comment1
, source_p
->name
);
1504 if(source_p
->serv
!= NULL
)
1505 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1507 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "%s was connected"
1508 " for %ld seconds. %d/%d sendK/recvK.",
1509 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1511 ilog(L_SERVER
, "%s was connected for %ld seconds. %d/%d sendK/recvK.",
1512 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1514 if(has_id(source_p
))
1515 del_from_id_hash(source_p
->id
, source_p
);
1517 del_from_client_hash(source_p
->name
, source_p
);
1518 remove_client_from_list(source_p
);
1519 scache_split(source_p
->serv
->nameinfo
);
1522 rb_dlinkAddAlloc(source_p
, &dead_list
);
1528 * This assumes IsPerson(source_p) == true && MyConnect(source_p) == true
1532 exit_local_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1533 const char *comment
)
1535 unsigned long on_for
;
1538 exit_generic_client(client_p
, source_p
, from
, comment
);
1539 clear_monitor(source_p
);
1541 s_assert(IsPerson(source_p
));
1542 rb_dlinkDelete(&source_p
->localClient
->tnode
, &lclient_list
);
1543 rb_dlinkDelete(&source_p
->lnode
, &me
.serv
->users
);
1545 if(IsOper(source_p
))
1546 rb_dlinkFindDestroy(source_p
, &local_oper_list
);
1548 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
1549 "Client exiting: %s (%s@%s) [%s] [%s]",
1551 source_p
->username
, source_p
->host
, comment
,
1552 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255");
1554 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
1555 "CLIEXIT %s %s %s %s 0 %s",
1556 source_p
->name
, source_p
->username
, source_p
->host
,
1557 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255",
1560 on_for
= rb_current_time() - source_p
->localClient
->firsttime
;
1562 ilog(L_USER
, "%s (%3lu:%02lu:%02lu): %s!%s@%s %s %d/%d",
1563 rb_ctime(rb_current_time(), tbuf
, sizeof(tbuf
)), on_for
/ 3600,
1564 (on_for
% 3600) / 60, on_for
% 60,
1565 source_p
->name
, source_p
->username
, source_p
->host
,
1567 source_p
->localClient
->sendK
, source_p
->localClient
->receiveK
);
1569 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)", source_p
->host
, comment
);
1570 close_connection(source_p
);
1572 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1574 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1575 ":%s QUIT :%s", use_id(source_p
), comment
);
1579 rb_dlinkAddAlloc(source_p
, &dead_list
);
1580 return(CLIENT_EXITED
);
1585 ** exit_client - This is old "m_bye". Name changed, because this is not a
1586 ** protocol function, but a general server utility function.
1588 ** This function exits a client of *any* type (user, server, etc)
1589 ** from this server. Also, this generates all necessary prototol
1590 ** messages that this exit may cause.
1592 ** 1) If the client is a local client, then this implicitly
1593 ** exits all other clients depending on this connection (e.g.
1594 ** remote clients having 'from'-field that points to this.
1596 ** 2) If the client is a remote client, then only this is exited.
1598 ** For convenience, this function returns a suitable value for
1599 ** m_function return value:
1601 ** CLIENT_EXITED if (client_p == source_p)
1602 ** 0 if (client_p != source_p)
1605 exit_client(struct Client
*client_p
, /* The local client originating the
1606 * exit or NULL, if this exit is
1607 * generated by this server for
1609 * This will not get any of the
1610 * generated messages. */
1611 struct Client
*source_p
, /* Client exiting */
1612 struct Client
*from
, /* Client firing off this Exit,
1614 const char *comment
/* Reason for the exit */
1617 hook_data_client_exit hdata
;
1618 if(IsClosing(source_p
))
1621 /* note, this HAS to be here, when we exit a client we attempt to
1622 * send them data, if this generates a write error we must *not* add
1623 * them to the abort list --fl
1625 SetClosing(source_p
);
1627 hdata
.local_link
= client_p
;
1628 hdata
.target
= source_p
;
1630 hdata
.comment
= comment
;
1631 call_hook(h_client_exit
, &hdata
);
1633 if(MyConnect(source_p
))
1635 /* Local clients of various types */
1636 if(IsPerson(source_p
))
1637 return exit_local_client(client_p
, source_p
, from
, comment
);
1638 else if(IsServer(source_p
))
1639 return exit_local_server(client_p
, source_p
, from
, comment
);
1640 /* IsUnknown || IsConnecting || IsHandShake */
1641 else if(!IsReject(source_p
))
1642 return exit_unknown_client(client_p
, source_p
, from
, comment
);
1647 if(IsPerson(source_p
))
1648 return exit_remote_client(client_p
, source_p
, from
, comment
);
1649 else if(IsServer(source_p
))
1650 return exit_remote_server(client_p
, source_p
, from
, comment
);
1657 * Count up local client memory
1660 /* XXX one common Client list now */
1662 count_local_client_memory(size_t * count
, size_t * local_client_memory_used
)
1665 rb_bh_usage(lclient_heap
, count
, NULL
, &lusage
, NULL
);
1666 *local_client_memory_used
= lusage
+ (*count
* (sizeof(void *) + sizeof(struct Client
)));
1670 * Count up remote client memory
1673 count_remote_client_memory(size_t * count
, size_t * remote_client_memory_used
)
1675 size_t lcount
, rcount
;
1676 rb_bh_usage(lclient_heap
, &lcount
, NULL
, NULL
, NULL
);
1677 rb_bh_usage(client_heap
, &rcount
, NULL
, NULL
, NULL
);
1678 *count
= rcount
- lcount
;
1679 *remote_client_memory_used
= *count
* (sizeof(void *) + sizeof(struct Client
));
1684 * accept processing, this adds a form of "caller ID" to ircd
1686 * If a client puts themselves into "caller ID only" mode,
1687 * only clients that match a client pointer they have put on
1688 * the accept list will be allowed to message them.
1690 * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1692 * [target.allow_list] -> [ source1 ] -> [source2 ]
1694 * i.e. a target will have a link list of source pointers it will allow
1695 * each source client then has a back pointer pointing back
1696 * to the client that has it on its accept list.
1697 * This allows for exit_one_client to remove these now bogus entries
1698 * from any client having an accept on them.
1703 * inputs - pointer to exiting client
1705 * side effects - Walk through given clients allow_list and on_allow_list
1706 * remove all references to this client
1709 del_all_accepts(struct Client
*client_p
)
1712 rb_dlink_node
*next_ptr
;
1713 struct Client
*target_p
;
1715 if(MyClient(client_p
) && client_p
->localClient
->allow_list
.head
)
1717 /* clear this clients accept list, and remove them from
1718 * everyones on_accept_list
1720 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->localClient
->allow_list
.head
)
1722 target_p
= ptr
->data
;
1723 rb_dlinkFindDestroy(client_p
, &target_p
->on_allow_list
);
1724 rb_dlinkDestroy(ptr
, &client_p
->localClient
->allow_list
);
1728 /* remove this client from everyones accept list */
1729 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
1731 target_p
= ptr
->data
;
1732 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
1733 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
1738 * show_ip() - asks if the true IP should be shown when source is
1739 * asking for info about target
1741 * Inputs - source_p who is asking
1742 * - target_p who do we want the info on
1743 * Output - returns 1 if clear IP can be shown, otherwise 0
1744 * Side Effects - none
1748 show_ip(struct Client
*source_p
, struct Client
*target_p
)
1750 if(IsAnyServer(target_p
))
1754 else if(IsIPSpoof(target_p
))
1756 /* source == NULL indicates message is being sent
1759 if(!ConfigFileEntry
.hide_spoof_ips
&&
1760 (source_p
== NULL
|| MyOper(source_p
)))
1764 else if(IsDynSpoof(target_p
) && (source_p
!= NULL
&& !IsOper(source_p
)))
1771 show_ip_conf(struct ConfItem
*aconf
, struct Client
*source_p
)
1773 if(IsConfDoSpoofIp(aconf
))
1775 if(!ConfigFileEntry
.hide_spoof_ips
&& MyOper(source_p
))
1785 show_ip_whowas(struct Whowas
*whowas
, struct Client
*source_p
)
1787 if(whowas
->flags
& WHOWAS_IP_SPOOFING
)
1788 if(ConfigFileEntry
.hide_spoof_ips
|| !MyOper(source_p
))
1790 if(whowas
->flags
& WHOWAS_DYNSPOOF
)
1791 if(!IsOper(source_p
))
1799 * inputs - pointer to client struct
1800 * output - pointer to struct User
1801 * side effects - add's an User information block to a client
1802 * if it was not previously allocated.
1805 make_user(struct Client
*client_p
)
1809 user
= client_p
->user
;
1812 user
= (struct User
*) rb_bh_alloc(user_heap
);
1814 client_p
->user
= user
;
1822 * inputs - pointer to client struct
1823 * output - pointer to server_t
1824 * side effects - add's an Server information block to a client
1825 * if it was not previously allocated.
1828 make_server(struct Client
*client_p
)
1830 struct Server
*serv
= client_p
->serv
;
1834 serv
= (struct Server
*) rb_malloc(sizeof(struct Server
));
1835 client_p
->serv
= serv
;
1837 return client_p
->serv
;
1843 * inputs - pointer to user struct
1844 * - pointer to client struct
1846 * side effects - Decrease user reference count by one and release block,
1847 * if count reaches 0
1850 free_user(struct User
*user
, struct Client
*client_p
)
1852 free_away(client_p
);
1854 if(--user
->refcnt
<= 0)
1857 rb_free((char *) user
->away
);
1861 if(user
->refcnt
< 0 || user
->invited
.head
|| user
->channel
.head
)
1863 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1864 "* %p user (%s!%s@%s) %p %p %p %lu %d *",
1866 client_p
? client_p
->
1873 rb_dlink_list_length(&user
->channel
),
1875 s_assert(!user
->refcnt
);
1876 s_assert(!user
->invited
.head
);
1877 s_assert(!user
->channel
.head
);
1880 rb_bh_free(user_heap
, user
);
1885 allocate_away(struct Client
*client_p
)
1887 if(client_p
->user
->away
== NULL
)
1888 client_p
->user
->away
= rb_bh_alloc(away_heap
);
1893 free_away(struct Client
*client_p
)
1895 if(client_p
->user
!= NULL
&& client_p
->user
->away
!= NULL
) {
1896 rb_bh_free(away_heap
, client_p
->user
->away
);
1897 client_p
->user
->away
= NULL
;
1906 for(i
= 0; i
< 3; i
++)
1907 current_uid
[i
] = me
.id
[i
];
1909 for(i
= 3; i
< 9; i
++)
1910 current_uid
[i
] = 'A';
1912 current_uid
[9] = '\0';
1919 static int flipped
= 0;
1923 for(i
= 8; i
> 3; i
--)
1925 if(current_uid
[i
] == 'Z')
1927 current_uid
[i
] = '0';
1930 else if(current_uid
[i
] != '9')
1936 current_uid
[i
] = 'A';
1939 /* if this next if() triggers, we're fucked. */
1940 if(current_uid
[3] == 'Z')
1942 current_uid
[i
] = 'A';
1948 /* if this happens..well, i'm not sure what to say, but lets handle it correctly */
1949 if(rb_unlikely(flipped
))
1951 /* this slows down uid generation a bit... */
1952 if(find_id(current_uid
) != NULL
)
1960 * Close the physical connection. This function must make
1961 * MyConnect(client_p) == FALSE, and set client_p->from == NULL.
1964 close_connection(struct Client
*client_p
)
1966 s_assert(client_p
!= NULL
);
1967 if(client_p
== NULL
)
1970 s_assert(MyConnect(client_p
));
1971 if(!MyConnect(client_p
))
1974 if(IsServer(client_p
))
1976 struct server_conf
*server_p
;
1978 ServerStats
.is_sv
++;
1979 ServerStats
.is_sbs
+= client_p
->localClient
->sendB
;
1980 ServerStats
.is_sbr
+= client_p
->localClient
->receiveB
;
1981 ServerStats
.is_sti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
1984 * If the connection has been up for a long amount of time, schedule
1985 * a 'quick' reconnect, else reset the next-connect cycle.
1987 if((server_p
= find_server_conf(client_p
->name
)) != NULL
)
1990 * Reschedule a faster reconnect, if this was a automatically
1991 * connected configuration entry. (Note that if we have had
1992 * a rehash in between, the status has been changed to
1993 * CONF_ILLEGAL). But only do this if it was a "good" link.
1995 server_p
->hold
= time(NULL
);
1997 (server_p
->hold
- client_p
->localClient
->lasttime
>
1998 HANGONGOODLINK
) ? HANGONRETRYDELAY
: ConFreq(server_p
->class);
2002 else if(IsClient(client_p
))
2004 ServerStats
.is_cl
++;
2005 ServerStats
.is_cbs
+= client_p
->localClient
->sendB
;
2006 ServerStats
.is_cbr
+= client_p
->localClient
->receiveB
;
2007 ServerStats
.is_cti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
2010 ServerStats
.is_ni
++;
2012 client_release_connids(client_p
);
2014 if(client_p
->localClient
->F
!= NULL
)
2016 /* attempt to flush any pending dbufs. Evil, but .. -- adrian */
2017 if(!IsIOError(client_p
))
2018 send_queued(client_p
);
2020 rb_close(client_p
->localClient
->F
);
2021 client_p
->localClient
->F
= NULL
;
2024 rb_linebuf_donebuf(&client_p
->localClient
->buf_sendq
);
2025 rb_linebuf_donebuf(&client_p
->localClient
->buf_recvq
);
2026 detach_conf(client_p
);
2028 /* XXX shouldnt really be done here. */
2029 detach_server_conf(client_p
);
2031 client_p
->from
= NULL
; /* ...this should catch them! >:) --msa */
2032 ClearMyConnect(client_p
);
2033 SetIOError(client_p
);
2039 error_exit_client(struct Client
*client_p
, int error
)
2042 * ...hmm, with non-blocking sockets we might get
2043 * here from quite valid reasons, although.. why
2044 * would select report "data available" when there
2045 * wasn't... so, this must be an error anyway... --msa
2046 * actually, EOF occurs when read() returns 0 and
2047 * in due course, select() returns that fd as ready
2048 * for reading even though it ends up being an EOF. -avalon
2051 int current_error
= rb_get_sockerr(client_p
->localClient
->F
);
2053 SetIOError(client_p
);
2055 if(IsServer(client_p
) || IsHandshake(client_p
))
2059 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2060 "Server %s closed the connection",
2063 ilog(L_SERVER
, "Server %s closed the connection",
2064 log_client_name(client_p
, SHOW_IP
));
2068 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2069 "Lost connection to %s: %s",
2070 client_p
->name
, strerror(current_error
));
2071 ilog(L_SERVER
, "Lost connection to %s: %s",
2072 log_client_name(client_p
, SHOW_IP
), strerror(current_error
));
2077 rb_strlcpy(errmsg
, "Remote host closed the connection", sizeof(errmsg
));
2079 snprintf(errmsg
, sizeof(errmsg
), "Read error: %s", strerror(current_error
));
2081 exit_client(client_p
, client_p
, &me
, errmsg
);