2 * charybdis: an advanced ircd.
3 * client.c: Controls clients.
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2005 ircd-ratbox development team
8 * Copyright (C) 2007 William Pitcock
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
37 #include "s_newconf.h"
50 #include "blacklist.h"
53 #include "rb_dictionary.h"
57 #define DEBUG_EXITED_CLIENTS
59 static void check_pings_list(rb_dlink_list
* list
);
60 static void check_unknowns_list(rb_dlink_list
* list
);
61 static void free_exited_clients(void *unused
);
62 static void exit_aborted_clients(void *unused
);
64 static int exit_remote_client(struct Client
*, struct Client
*, struct Client
*,const char *);
65 static int exit_remote_server(struct Client
*, struct Client
*, struct Client
*,const char *);
66 static int exit_local_client(struct Client
*, struct Client
*, struct Client
*,const char *);
67 static int exit_unknown_client(struct Client
*, struct Client
*, struct Client
*,const char *);
68 static int exit_local_server(struct Client
*, struct Client
*, struct Client
*,const char *);
69 static int qs_server(struct Client
*, struct Client
*, struct Client
*, const char *comment
);
71 static EVH check_pings
;
73 static rb_bh
*client_heap
= NULL
;
74 static rb_bh
*lclient_heap
= NULL
;
75 static rb_bh
*pclient_heap
= NULL
;
76 static rb_bh
*user_heap
= NULL
;
77 static rb_bh
*away_heap
= NULL
;
78 static char current_uid
[IDLEN
];
79 static 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 struct Blacklist
*blptr
;
258 s_assert(NULL
!= client_p
);
260 if(client_p
->preClient
== NULL
)
263 blptr
= client_p
->preClient
->dnsbl_listed
;
265 unref_blacklist(blptr
);
266 s_assert(rb_dlink_list_length(&client_p
->preClient
->dnsbl_queries
) == 0);
268 rb_bh_free(pclient_heap
, client_p
->preClient
);
269 client_p
->preClient
= NULL
;
273 free_local_client(struct Client
*client_p
)
275 s_assert(NULL
!= client_p
);
276 s_assert(&me
!= client_p
);
278 if(client_p
->localClient
== NULL
)
282 * clean up extra sockets from P-lines which have been discarded.
284 if(client_p
->localClient
->listener
)
286 s_assert(0 < client_p
->localClient
->listener
->ref_count
);
287 if(0 == --client_p
->localClient
->listener
->ref_count
288 && !client_p
->localClient
->listener
->active
)
289 free_listener(client_p
->localClient
->listener
);
290 client_p
->localClient
->listener
= 0;
293 client_release_connids(client_p
);
294 if(client_p
->localClient
->F
!= NULL
)
296 rb_close(client_p
->localClient
->F
);
299 if(client_p
->localClient
->passwd
)
301 memset(client_p
->localClient
->passwd
, 0,
302 strlen(client_p
->localClient
->passwd
));
303 rb_free(client_p
->localClient
->passwd
);
306 rb_free(client_p
->localClient
->auth_user
);
307 rb_free(client_p
->localClient
->challenge
);
308 rb_free(client_p
->localClient
->fullcaps
);
309 rb_free(client_p
->localClient
->opername
);
310 rb_free(client_p
->localClient
->mangledhost
);
311 if (client_p
->localClient
->privset
)
312 privilegeset_unref(client_p
->localClient
->privset
);
315 ssld_decrement_clicount(client_p
->localClient
->ssl_ctl
);
317 if(IsCapable(client_p
, CAP_ZIP
))
318 ssld_decrement_clicount(client_p
->localClient
->z_ctl
);
320 rb_bh_free(lclient_heap
, client_p
->localClient
);
321 client_p
->localClient
= NULL
;
325 free_client(struct Client
*client_p
)
327 s_assert(NULL
!= client_p
);
328 s_assert(&me
!= client_p
);
329 free_local_client(client_p
);
330 free_pre_client(client_p
);
331 rb_free(client_p
->certfp
);
332 rb_bh_free(client_heap
, client_p
);
336 * check_pings - go through the local client list and check activity
337 * kill off stuff that should die
339 * inputs - NOT USED (from event)
340 * output - next time_t when check_pings() should be called again
344 * A PING can be sent to clients as necessary.
346 * Client/Server ping outs are handled.
350 * Addon from adrian. We used to call this after nextping seconds,
351 * however I've changed it to run once a second. This is only for
352 * PING timeouts, not K/etc-line checks (thanks dianora!). Having it
353 * run once a second makes life a lot easier - when a new client connects
354 * and they need a ping in 4 seconds, if nextping was set to 20 seconds
355 * we end up waiting 20 seconds. This is stupid. :-)
356 * I will optimise (hah!) check_pings() once I've finished working on
357 * tidying up other network IO evilnesses.
362 check_pings(void *notused
)
364 check_pings_list(&lclient_list
);
365 check_pings_list(&serv_list
);
366 check_unknowns_list(&unknown_list
);
372 * inputs - pointer to list to check
377 check_pings_list(rb_dlink_list
* list
)
379 char scratch
[32]; /* way too generous but... */
380 struct Client
*client_p
; /* current local client_p being examined */
381 int ping
= 0; /* ping time value from client */
382 rb_dlink_node
*ptr
, *next_ptr
;
384 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
386 client_p
= ptr
->data
;
388 if(!MyConnect(client_p
) || IsDead(client_p
))
391 ping
= get_client_ping(client_p
);
393 if(ping
< (rb_current_time() - client_p
->localClient
->lasttime
))
396 * If the client/server hasnt talked to us in 2*ping seconds
397 * and it has a ping time, then close its connection.
399 if(((rb_current_time() - client_p
->localClient
->lasttime
) >= (2 * ping
)
400 && (client_p
->flags
& FLAGS_PINGSENT
)))
402 if(IsServer(client_p
))
404 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
405 "No response from %s, closing link",
408 "No response from %s, closing link",
409 log_client_name(client_p
, HIDE_IP
));
411 (void) snprintf(scratch
, sizeof(scratch
),
412 "Ping timeout: %d seconds",
413 (int) (rb_current_time() - client_p
->localClient
->lasttime
));
415 exit_client(client_p
, client_p
, &me
, scratch
);
418 else if((client_p
->flags
& FLAGS_PINGSENT
) == 0)
421 * if we havent PINGed the connection and we havent
422 * heard from it in a while, PING it to make sure
425 client_p
->flags
|= FLAGS_PINGSENT
;
426 /* not nice but does the job */
427 client_p
->localClient
->lasttime
= rb_current_time() - ping
;
428 sendto_one(client_p
, "PING :%s", me
.name
);
437 * check_unknowns_list
439 * inputs - pointer to list of unknown clients
441 * side effects - unknown clients get marked for termination after n seconds
444 check_unknowns_list(rb_dlink_list
* list
)
446 rb_dlink_node
*ptr
, *next_ptr
;
447 struct Client
*client_p
;
450 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, list
->head
)
452 client_p
= ptr
->data
;
454 if(IsDead(client_p
) || IsClosing(client_p
))
457 /* still has DNSbls to validate against */
458 if(client_p
->preClient
!= NULL
&&
459 rb_dlink_list_length(&client_p
->preClient
->dnsbl_queries
) > 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 delete_auth_queries(source_p
);
1359 abort_blacklist_queries(source_p
);
1360 rb_dlinkDelete(&source_p
->localClient
->tnode
, &unknown_list
);
1362 if(!IsIOError(source_p
))
1363 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)",
1364 source_p
->user
!= NULL
? source_p
->host
: "127.0.0.1",
1367 close_connection(source_p
);
1369 if(has_id(source_p
))
1370 del_from_id_hash(source_p
->id
, source_p
);
1372 del_from_hostname_hash(source_p
->host
, source_p
);
1373 del_from_client_hash(source_p
->name
, source_p
);
1374 remove_client_from_list(source_p
);
1376 rb_dlinkAddAlloc(source_p
, &dead_list
);
1378 /* Note that we don't need to add unknowns to the dead_list */
1379 return(CLIENT_EXITED
);
1383 exit_remote_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1384 const char *comment
)
1386 static char comment1
[(HOSTLEN
*2)+2];
1387 static char newcomment
[BUFSIZE
];
1388 struct Client
*target_p
;
1390 if(ConfigServerHide
.flatten_links
)
1391 strcpy(comment1
, "*.net *.split");
1394 strcpy(comment1
, source_p
->servptr
->name
);
1395 strcat(comment1
, " ");
1396 strcat(comment1
, source_p
->name
);
1399 snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1400 from
->name
, comment
);
1402 if(source_p
->serv
!= NULL
)
1403 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1405 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1406 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1410 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1411 target_p
= source_p
->from
;
1413 if(target_p
!= NULL
&& IsServer(target_p
) && target_p
!= client_p
&&
1414 !IsMe(target_p
) && (source_p
->flags
& FLAGS_KILLED
) == 0)
1416 sendto_one(target_p
, ":%s SQUIT %s :%s",
1417 get_id(from
, target_p
), get_id(source_p
, target_p
),
1421 if(has_id(source_p
))
1422 del_from_id_hash(source_p
->id
, source_p
);
1424 del_from_client_hash(source_p
->name
, source_p
);
1425 remove_client_from_list(source_p
);
1426 scache_split(source_p
->serv
->nameinfo
);
1429 #ifdef DEBUG_EXITED_CLIENTS
1430 rb_dlinkAddAlloc(source_p
, &dead_remote_list
);
1432 rb_dlinkAddAlloc(source_p
, &dead_list
);
1438 qs_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1439 const char *comment
)
1441 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1442 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1446 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1448 if(has_id(source_p
))
1449 del_from_id_hash(source_p
->id
, source_p
);
1451 del_from_client_hash(source_p
->name
, source_p
);
1452 remove_client_from_list(source_p
);
1453 scache_split(source_p
->serv
->nameinfo
);
1456 rb_dlinkAddAlloc(source_p
, &dead_list
);
1461 exit_local_server(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1462 const char *comment
)
1464 static char comment1
[(HOSTLEN
*2)+2];
1465 static char newcomment
[BUFSIZE
];
1466 unsigned int sendk
, recvk
;
1468 rb_dlinkDelete(&source_p
->localClient
->tnode
, &serv_list
);
1469 rb_dlinkFindDestroy(source_p
, &global_serv_list
);
1471 sendk
= source_p
->localClient
->sendK
;
1472 recvk
= source_p
->localClient
->receiveK
;
1474 /* Always show source here, so the server notices show
1475 * which side initiated the split -- jilles
1477 snprintf(newcomment
, sizeof(newcomment
), "by %s: %s",
1478 from
== source_p
? me
.name
: from
->name
, comment
);
1479 if (!IsIOError(source_p
))
1480 sendto_one(source_p
, "SQUIT %s :%s", use_id(source_p
),
1482 if(client_p
!= NULL
&& source_p
!= client_p
&& !IsIOError(source_p
))
1484 sendto_one(source_p
, "ERROR :Closing Link: 127.0.0.1 %s (%s)",
1485 source_p
->name
, comment
);
1488 if(source_p
->servptr
&& source_p
->servptr
->serv
)
1489 rb_dlinkDelete(&source_p
->lnode
, &source_p
->servptr
->serv
->servers
);
1494 close_connection(source_p
);
1496 if(ConfigServerHide
.flatten_links
)
1497 strcpy(comment1
, "*.net *.split");
1500 strcpy(comment1
, source_p
->servptr
->name
);
1501 strcat(comment1
, " ");
1502 strcat(comment1
, source_p
->name
);
1505 if(source_p
->serv
!= NULL
)
1506 remove_dependents(client_p
, source_p
, from
, IsPerson(from
) ? newcomment
: comment
, comment1
);
1508 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "%s was connected"
1509 " for %ld seconds. %d/%d sendK/recvK.",
1510 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1512 ilog(L_SERVER
, "%s was connected for %ld seconds. %d/%d sendK/recvK.",
1513 source_p
->name
, (long) rb_current_time() - source_p
->localClient
->firsttime
, sendk
, recvk
);
1515 if(has_id(source_p
))
1516 del_from_id_hash(source_p
->id
, source_p
);
1518 del_from_client_hash(source_p
->name
, source_p
);
1519 remove_client_from_list(source_p
);
1520 scache_split(source_p
->serv
->nameinfo
);
1523 rb_dlinkAddAlloc(source_p
, &dead_list
);
1529 * This assumes IsPerson(source_p) == true && MyConnect(source_p) == true
1533 exit_local_client(struct Client
*client_p
, struct Client
*source_p
, struct Client
*from
,
1534 const char *comment
)
1536 unsigned long on_for
;
1539 exit_generic_client(client_p
, source_p
, from
, comment
);
1540 clear_monitor(source_p
);
1542 s_assert(IsPerson(source_p
));
1543 rb_dlinkDelete(&source_p
->localClient
->tnode
, &lclient_list
);
1544 rb_dlinkDelete(&source_p
->lnode
, &me
.serv
->users
);
1546 if(IsOper(source_p
))
1547 rb_dlinkFindDestroy(source_p
, &local_oper_list
);
1549 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
1550 "Client exiting: %s (%s@%s) [%s] [%s]",
1552 source_p
->username
, source_p
->host
, comment
,
1553 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255");
1555 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
1556 "CLIEXIT %s %s %s %s 0 %s",
1557 source_p
->name
, source_p
->username
, source_p
->host
,
1558 show_ip(NULL
, source_p
) ? source_p
->sockhost
: "255.255.255.255",
1561 on_for
= rb_current_time() - source_p
->localClient
->firsttime
;
1563 ilog(L_USER
, "%s (%3lu:%02lu:%02lu): %s!%s@%s %s %d/%d",
1564 rb_ctime(rb_current_time(), tbuf
, sizeof(tbuf
)), on_for
/ 3600,
1565 (on_for
% 3600) / 60, on_for
% 60,
1566 source_p
->name
, source_p
->username
, source_p
->host
,
1568 source_p
->localClient
->sendK
, source_p
->localClient
->receiveK
);
1570 sendto_one(source_p
, "ERROR :Closing Link: %s (%s)", source_p
->host
, comment
);
1571 close_connection(source_p
);
1573 if((source_p
->flags
& FLAGS_KILLED
) == 0)
1575 sendto_server(client_p
, NULL
, CAP_TS6
, NOCAPS
,
1576 ":%s QUIT :%s", use_id(source_p
), comment
);
1580 rb_dlinkAddAlloc(source_p
, &dead_list
);
1581 return(CLIENT_EXITED
);
1586 ** exit_client - This is old "m_bye". Name changed, because this is not a
1587 ** protocol function, but a general server utility function.
1589 ** This function exits a client of *any* type (user, server, etc)
1590 ** from this server. Also, this generates all necessary prototol
1591 ** messages that this exit may cause.
1593 ** 1) If the client is a local client, then this implicitly
1594 ** exits all other clients depending on this connection (e.g.
1595 ** remote clients having 'from'-field that points to this.
1597 ** 2) If the client is a remote client, then only this is exited.
1599 ** For convenience, this function returns a suitable value for
1600 ** m_function return value:
1602 ** CLIENT_EXITED if (client_p == source_p)
1603 ** 0 if (client_p != source_p)
1606 exit_client(struct Client
*client_p
, /* The local client originating the
1607 * exit or NULL, if this exit is
1608 * generated by this server for
1610 * This will not get any of the
1611 * generated messages. */
1612 struct Client
*source_p
, /* Client exiting */
1613 struct Client
*from
, /* Client firing off this Exit,
1615 const char *comment
/* Reason for the exit */
1618 hook_data_client_exit hdata
;
1619 if(IsClosing(source_p
))
1622 /* note, this HAS to be here, when we exit a client we attempt to
1623 * send them data, if this generates a write error we must *not* add
1624 * them to the abort list --fl
1626 SetClosing(source_p
);
1628 hdata
.local_link
= client_p
;
1629 hdata
.target
= source_p
;
1631 hdata
.comment
= comment
;
1632 call_hook(h_client_exit
, &hdata
);
1634 if(MyConnect(source_p
))
1636 /* Local clients of various types */
1637 if(IsPerson(source_p
))
1638 return exit_local_client(client_p
, source_p
, from
, comment
);
1639 else if(IsServer(source_p
))
1640 return exit_local_server(client_p
, source_p
, from
, comment
);
1641 /* IsUnknown || IsConnecting || IsHandShake */
1642 else if(!IsReject(source_p
))
1643 return exit_unknown_client(client_p
, source_p
, from
, comment
);
1648 if(IsPerson(source_p
))
1649 return exit_remote_client(client_p
, source_p
, from
, comment
);
1650 else if(IsServer(source_p
))
1651 return exit_remote_server(client_p
, source_p
, from
, comment
);
1658 * Count up local client memory
1661 /* XXX one common Client list now */
1663 count_local_client_memory(size_t * count
, size_t * local_client_memory_used
)
1666 rb_bh_usage(lclient_heap
, count
, NULL
, &lusage
, NULL
);
1667 *local_client_memory_used
= lusage
+ (*count
* (sizeof(void *) + sizeof(struct Client
)));
1671 * Count up remote client memory
1674 count_remote_client_memory(size_t * count
, size_t * remote_client_memory_used
)
1676 size_t lcount
, rcount
;
1677 rb_bh_usage(lclient_heap
, &lcount
, NULL
, NULL
, NULL
);
1678 rb_bh_usage(client_heap
, &rcount
, NULL
, NULL
, NULL
);
1679 *count
= rcount
- lcount
;
1680 *remote_client_memory_used
= *count
* (sizeof(void *) + sizeof(struct Client
));
1685 * accept processing, this adds a form of "caller ID" to ircd
1687 * If a client puts themselves into "caller ID only" mode,
1688 * only clients that match a client pointer they have put on
1689 * the accept list will be allowed to message them.
1691 * [ source.on_allow_list ] -> [ target1 ] -> [ target2 ]
1693 * [target.allow_list] -> [ source1 ] -> [source2 ]
1695 * i.e. a target will have a link list of source pointers it will allow
1696 * each source client then has a back pointer pointing back
1697 * to the client that has it on its accept list.
1698 * This allows for exit_one_client to remove these now bogus entries
1699 * from any client having an accept on them.
1704 * inputs - pointer to exiting client
1706 * side effects - Walk through given clients allow_list and on_allow_list
1707 * remove all references to this client
1710 del_all_accepts(struct Client
*client_p
)
1713 rb_dlink_node
*next_ptr
;
1714 struct Client
*target_p
;
1716 if(MyClient(client_p
) && client_p
->localClient
->allow_list
.head
)
1718 /* clear this clients accept list, and remove them from
1719 * everyones on_accept_list
1721 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->localClient
->allow_list
.head
)
1723 target_p
= ptr
->data
;
1724 rb_dlinkFindDestroy(client_p
, &target_p
->on_allow_list
);
1725 rb_dlinkDestroy(ptr
, &client_p
->localClient
->allow_list
);
1729 /* remove this client from everyones accept list */
1730 RB_DLINK_FOREACH_SAFE(ptr
, next_ptr
, client_p
->on_allow_list
.head
)
1732 target_p
= ptr
->data
;
1733 rb_dlinkFindDestroy(client_p
, &target_p
->localClient
->allow_list
);
1734 rb_dlinkDestroy(ptr
, &client_p
->on_allow_list
);
1739 * show_ip() - asks if the true IP should be shown when source is
1740 * asking for info about target
1742 * Inputs - source_p who is asking
1743 * - target_p who do we want the info on
1744 * Output - returns 1 if clear IP can be shown, otherwise 0
1745 * Side Effects - none
1749 show_ip(struct Client
*source_p
, struct Client
*target_p
)
1751 if(IsAnyServer(target_p
))
1755 else if(IsIPSpoof(target_p
))
1757 /* source == NULL indicates message is being sent
1760 if(!ConfigFileEntry
.hide_spoof_ips
&&
1761 (source_p
== NULL
|| MyOper(source_p
)))
1765 else if(IsDynSpoof(target_p
) && (source_p
!= NULL
&& !IsOper(source_p
)))
1772 show_ip_conf(struct ConfItem
*aconf
, struct Client
*source_p
)
1774 if(IsConfDoSpoofIp(aconf
))
1776 if(!ConfigFileEntry
.hide_spoof_ips
&& MyOper(source_p
))
1786 show_ip_whowas(struct Whowas
*whowas
, struct Client
*source_p
)
1788 if(whowas
->flags
& WHOWAS_IP_SPOOFING
)
1789 if(ConfigFileEntry
.hide_spoof_ips
|| !MyOper(source_p
))
1791 if(whowas
->flags
& WHOWAS_DYNSPOOF
)
1792 if(!IsOper(source_p
))
1800 * inputs - pointer to client struct
1801 * output - pointer to struct User
1802 * side effects - add's an User information block to a client
1803 * if it was not previously allocated.
1806 make_user(struct Client
*client_p
)
1810 user
= client_p
->user
;
1813 user
= (struct User
*) rb_bh_alloc(user_heap
);
1815 client_p
->user
= user
;
1823 * inputs - pointer to client struct
1824 * output - pointer to server_t
1825 * side effects - add's an Server information block to a client
1826 * if it was not previously allocated.
1829 make_server(struct Client
*client_p
)
1831 struct Server
*serv
= client_p
->serv
;
1835 serv
= (struct Server
*) rb_malloc(sizeof(struct Server
));
1836 client_p
->serv
= serv
;
1838 return client_p
->serv
;
1844 * inputs - pointer to user struct
1845 * - pointer to client struct
1847 * side effects - Decrease user reference count by one and release block,
1848 * if count reaches 0
1851 free_user(struct User
*user
, struct Client
*client_p
)
1853 free_away(client_p
);
1855 if(--user
->refcnt
<= 0)
1858 rb_free((char *) user
->away
);
1862 if(user
->refcnt
< 0 || user
->invited
.head
|| user
->channel
.head
)
1864 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1865 "* %p user (%s!%s@%s) %p %p %p %lu %d *",
1867 client_p
? client_p
->
1874 rb_dlink_list_length(&user
->channel
),
1876 s_assert(!user
->refcnt
);
1877 s_assert(!user
->invited
.head
);
1878 s_assert(!user
->channel
.head
);
1881 rb_bh_free(user_heap
, user
);
1886 allocate_away(struct Client
*client_p
)
1888 if(client_p
->user
->away
== NULL
)
1889 client_p
->user
->away
= rb_bh_alloc(away_heap
);
1894 free_away(struct Client
*client_p
)
1896 if(client_p
->user
!= NULL
&& client_p
->user
->away
!= NULL
) {
1897 rb_bh_free(away_heap
, client_p
->user
->away
);
1898 client_p
->user
->away
= NULL
;
1907 for(i
= 0; i
< 3; i
++)
1908 current_uid
[i
] = me
.id
[i
];
1910 for(i
= 3; i
< 9; i
++)
1911 current_uid
[i
] = 'A';
1913 current_uid
[9] = '\0';
1920 static int flipped
= 0;
1924 for(i
= 8; i
> 3; i
--)
1926 if(current_uid
[i
] == 'Z')
1928 current_uid
[i
] = '0';
1931 else if(current_uid
[i
] != '9')
1937 current_uid
[i
] = 'A';
1940 /* if this next if() triggers, we're fucked. */
1941 if(current_uid
[3] == 'Z')
1943 current_uid
[i
] = 'A';
1949 /* if this happens..well, i'm not sure what to say, but lets handle it correctly */
1950 if(rb_unlikely(flipped
))
1952 /* this slows down uid generation a bit... */
1953 if(find_id(current_uid
) != NULL
)
1961 * Close the physical connection. This function must make
1962 * MyConnect(client_p) == FALSE, and set client_p->from == NULL.
1965 close_connection(struct Client
*client_p
)
1967 s_assert(client_p
!= NULL
);
1968 if(client_p
== NULL
)
1971 s_assert(MyConnect(client_p
));
1972 if(!MyConnect(client_p
))
1975 if(IsServer(client_p
))
1977 struct server_conf
*server_p
;
1979 ServerStats
.is_sv
++;
1980 ServerStats
.is_sbs
+= client_p
->localClient
->sendB
;
1981 ServerStats
.is_sbr
+= client_p
->localClient
->receiveB
;
1982 ServerStats
.is_sti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
1985 * If the connection has been up for a long amount of time, schedule
1986 * a 'quick' reconnect, else reset the next-connect cycle.
1988 if((server_p
= find_server_conf(client_p
->name
)) != NULL
)
1991 * Reschedule a faster reconnect, if this was a automatically
1992 * connected configuration entry. (Note that if we have had
1993 * a rehash in between, the status has been changed to
1994 * CONF_ILLEGAL). But only do this if it was a "good" link.
1996 server_p
->hold
= time(NULL
);
1998 (server_p
->hold
- client_p
->localClient
->lasttime
>
1999 HANGONGOODLINK
) ? HANGONRETRYDELAY
: ConFreq(server_p
->class);
2003 else if(IsClient(client_p
))
2005 ServerStats
.is_cl
++;
2006 ServerStats
.is_cbs
+= client_p
->localClient
->sendB
;
2007 ServerStats
.is_cbr
+= client_p
->localClient
->receiveB
;
2008 ServerStats
.is_cti
+= (unsigned long long)(rb_current_time() - client_p
->localClient
->firsttime
);
2011 ServerStats
.is_ni
++;
2013 client_release_connids(client_p
);
2015 if(client_p
->localClient
->F
!= NULL
)
2017 /* attempt to flush any pending dbufs. Evil, but .. -- adrian */
2018 if(!IsIOError(client_p
))
2019 send_queued(client_p
);
2021 rb_close(client_p
->localClient
->F
);
2022 client_p
->localClient
->F
= NULL
;
2025 rb_linebuf_donebuf(&client_p
->localClient
->buf_sendq
);
2026 rb_linebuf_donebuf(&client_p
->localClient
->buf_recvq
);
2027 detach_conf(client_p
);
2029 /* XXX shouldnt really be done here. */
2030 detach_server_conf(client_p
);
2032 client_p
->from
= NULL
; /* ...this should catch them! >:) --msa */
2033 ClearMyConnect(client_p
);
2034 SetIOError(client_p
);
2040 error_exit_client(struct Client
*client_p
, int error
)
2043 * ...hmm, with non-blocking sockets we might get
2044 * here from quite valid reasons, although.. why
2045 * would select report "data available" when there
2046 * wasn't... so, this must be an error anyway... --msa
2047 * actually, EOF occurs when read() returns 0 and
2048 * in due course, select() returns that fd as ready
2049 * for reading even though it ends up being an EOF. -avalon
2052 int current_error
= rb_get_sockerr(client_p
->localClient
->F
);
2054 SetIOError(client_p
);
2056 if(IsServer(client_p
) || IsHandshake(client_p
))
2060 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2061 "Server %s closed the connection",
2064 ilog(L_SERVER
, "Server %s closed the connection",
2065 log_client_name(client_p
, SHOW_IP
));
2069 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) && !IsServer(client_p
) ? L_NETWIDE
: L_ALL
,
2070 "Lost connection to %s: %s",
2071 client_p
->name
, strerror(current_error
));
2072 ilog(L_SERVER
, "Lost connection to %s: %s",
2073 log_client_name(client_p
, SHOW_IP
), strerror(current_error
));
2078 rb_strlcpy(errmsg
, "Remote host closed the connection", sizeof(errmsg
));
2080 snprintf(errmsg
, sizeof(errmsg
), "Read error: %s", strerror(current_error
));
2082 exit_client(client_p
, client_p
, &me
, errmsg
);