2 * ircd-ratbox: A slightly useful ircd.
3 * s_serv.c: Server related functions.
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
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
24 * $Id: s_serv.c 3550 2007-08-09 06:47:26Z nenolod $
30 #include <openssl/rsa.h>
38 #include "irc_string.h"
39 #include "sprintf_irc.h"
41 #include "ircd_defs.h"
46 #include "s_newconf.h"
53 #include "channel.h" /* chcap_usage_counts stuff... */
61 #define INADDR_NONE ((unsigned int) 0xffffffff)
64 #ifndef HAVE_SOCKETPAIR
65 static int inet_socketpair(int d
, int type
, int protocol
, int sv
[2]);
68 int MaxConnectionCount
= 1;
69 int MaxClientCount
= 1;
70 int refresh_user_links
= 0;
72 static char buf
[BUFSIZE
];
74 static void start_io(struct Client
*server
);
76 static SlinkRplHnd slink_error
;
77 static SlinkRplHnd slink_zipstats
;
79 * list of recognized server capabilities. "TS" is not on the list
80 * because all servers that we talk to already do TS, and the kludged
81 * extra argument to "PASS" takes care of checking that. -orabidoo
83 struct Capability captab
[] = {
91 { "KNOCK", CAP_KNOCK
},
94 { "UNKLN", CAP_UNKLN
},
95 { "CLUSTER", CAP_CLUSTER
},
96 { "ENCAP", CAP_ENCAP
},
97 { "SERVICES", CAP_SERVICE
},
98 { "RSFNC", CAP_RSFNC
},
100 { "EUID", CAP_EUID
},
104 struct SlinkRplDef slinkrpltab
[] = {
105 {SLINKRPL_ERROR
, slink_error
, SLINKRPL_FLAG_DATA
},
106 {SLINKRPL_ZIPSTATS
, slink_zipstats
, SLINKRPL_FLAG_DATA
},
110 static int fork_server(struct Client
*client_p
);
112 static CNCB serv_connect_callback
;
115 slink_error(unsigned int rpl
, unsigned int len
, unsigned char *data
, struct Client
*server_p
)
117 char squitreason
[256];
119 s_assert(rpl
== SLINKRPL_ERROR
);
122 data
[len
- 1] = '\0';
124 sendto_realops_snomask(SNO_GENERAL
, L_ALL
, "SlinkError for %s: %s", server_p
->name
, data
);
125 snprintf(squitreason
, sizeof squitreason
, "servlink error: %s", data
);
126 exit_client(server_p
, server_p
, &me
, squitreason
);
130 slink_zipstats(unsigned int rpl
, unsigned int len
, unsigned char *data
, struct Client
*server_p
)
132 struct ZipStats zipstats
;
133 u_int32_t in
= 0, in_wire
= 0, out
= 0, out_wire
= 0;
136 s_assert(rpl
== SLINKRPL_ZIPSTATS
);
138 s_assert(IsCapable(server_p
, CAP_ZIP
));
140 /* Yes, it needs to be done this way, no we cannot let the compiler
141 * work with the pointer to the structure. This works around a GCC
142 * bug on SPARC that affects all versions at the time of this writing.
143 * I will feed you to the creatures living in RMS's beard if you do
144 * not leave this as is, without being sure that you are not causing
145 * regression for most of our installed SPARC base.
146 * -jmallett, 04/27/2002
148 memcpy(&zipstats
, &server_p
->localClient
->zipstats
, sizeof(struct ZipStats
));
150 in
|= (data
[i
++] << 24);
151 in
|= (data
[i
++] << 16);
152 in
|= (data
[i
++] << 8);
155 in_wire
|= (data
[i
++] << 24);
156 in_wire
|= (data
[i
++] << 16);
157 in_wire
|= (data
[i
++] << 8);
158 in_wire
|= (data
[i
++]);
160 out
|= (data
[i
++] << 24);
161 out
|= (data
[i
++] << 16);
162 out
|= (data
[i
++] << 8);
165 out_wire
|= (data
[i
++] << 24);
166 out_wire
|= (data
[i
++] << 16);
167 out_wire
|= (data
[i
++] << 8);
168 out_wire
|= (data
[i
++]);
171 zipstats
.inK
+= zipstats
.in
>> 10;
172 zipstats
.in
&= 0x03ff;
174 zipstats
.in_wire
+= in_wire
;
175 zipstats
.inK_wire
+= zipstats
.in_wire
>> 10;
176 zipstats
.in_wire
&= 0x03ff;
179 zipstats
.outK
+= zipstats
.out
>> 10;
180 zipstats
.out
&= 0x03ff;
182 zipstats
.out_wire
+= out_wire
;
183 zipstats
.outK_wire
+= zipstats
.out_wire
>> 10;
184 zipstats
.out_wire
&= 0x03ff;
188 (((double) (zipstats
.inK
- zipstats
.inK_wire
) /
189 (double) zipstats
.inK
) * 100.00);
191 zipstats
.in_ratio
= 0;
193 if(zipstats
.outK
> 0)
195 (((double) (zipstats
.outK
- zipstats
.outK_wire
) /
196 (double) zipstats
.outK
) * 100.00);
198 zipstats
.out_ratio
= 0;
200 memcpy(&server_p
->localClient
->zipstats
, &zipstats
, sizeof(struct ZipStats
));
204 collect_zipstats(void *unused
)
207 struct Client
*target_p
;
209 RB_DLINK_FOREACH(ptr
, serv_list
.head
)
211 target_p
= ptr
->data
;
212 if(IsCapable(target_p
, CAP_ZIP
))
214 /* only bother if we haven't already got something queued... */
215 if(!target_p
->localClient
->slinkq
)
217 target_p
->localClient
->slinkq
= rb_malloc(1); /* sigh.. */
218 target_p
->localClient
->slinkq
[0] = SLINKCMD_ZIPSTATS
;
219 target_p
->localClient
->slinkq_ofs
= 0;
220 target_p
->localClient
->slinkq_len
= 1;
221 // send_queued_slink_write(target_p->localClient->ctrlfd, target_p);
228 * hunt_server - Do the basic thing in delivering the message (command)
229 * across the relays to the specific server (server) for
232 * Note: The command is a format string and *MUST* be
233 * of prefixed style (e.g. ":%s COMMAND %s ...").
234 * Command can have only max 8 parameters.
236 * server parv[server] is the parameter identifying the
240 * parv[server] is replaced with the pointer to the
241 * real servername from the matched client (I'm lazy
244 * returns: (see #defines)
247 hunt_server(struct Client
*client_p
, struct Client
*source_p
,
248 const char *command
, int server
, int parc
, const char *parv
[])
250 struct Client
*target_p
;
257 * Assume it's me, if no server
259 if(parc
<= server
|| EmptyString(parv
[server
]) ||
260 match(parv
[server
], me
.name
) || (strcmp(parv
[server
], me
.id
) == 0))
261 return (HUNTED_ISME
);
263 new = LOCAL_COPY(parv
[server
]);
266 * These are to pickup matches that would cause the following
267 * message to go in the wrong direction while doing quick fast
268 * non-matching lookups.
270 if(MyClient(source_p
))
271 target_p
= find_named_client(new);
273 target_p
= find_client(new);
276 if(target_p
->from
== source_p
->from
&& !MyConnect(target_p
))
280 wilds
= (strchr(new, '?') || strchr(new, '*'));
283 * Again, if there are no wild cards involved in the server
284 * name, use the hash lookup
290 if(MyClient(source_p
) || !IsDigit(parv
[server
][0]))
291 sendto_one_numeric(source_p
, ERR_NOSUCHSERVER
,
292 form_str(ERR_NOSUCHSERVER
),
294 return (HUNTED_NOSUCH
);
300 RB_DLINK_FOREACH(ptr
, global_client_list
.head
)
302 if(match(new, ((struct Client
*) (ptr
->data
))->name
))
304 target_p
= ptr
->data
;
313 if(!IsRegistered(target_p
))
315 sendto_one_numeric(source_p
, ERR_NOSUCHSERVER
,
316 form_str(ERR_NOSUCHSERVER
),
318 return HUNTED_NOSUCH
;
321 if(IsMe(target_p
) || MyClient(target_p
))
325 parv
[server
] = get_id(target_p
, target_p
);
327 sendto_one(target_p
, command
, get_id(source_p
, target_p
),
328 parv
[1], parv
[2], parv
[3], parv
[4], parv
[5], parv
[6], parv
[7], parv
[8]);
330 return (HUNTED_PASS
);
333 if(MyClient(source_p
) || !IsDigit(parv
[server
][0]))
334 sendto_one_numeric(source_p
, ERR_NOSUCHSERVER
,
335 form_str(ERR_NOSUCHSERVER
), parv
[server
]);
336 return (HUNTED_NOSUCH
);
340 * try_connections - scan through configuration and try new connections.
341 * Returns the calendar time when the next call to this
342 * function should be made latest. (No harm done if this
343 * is called earlier or later...)
346 try_connections(void *unused
)
348 struct Client
*client_p
;
349 struct server_conf
*server_p
= NULL
;
350 struct server_conf
*tmp_p
;
353 int connecting
= FALSE
;
357 RB_DLINK_FOREACH(ptr
, server_conf_list
.head
)
361 if(ServerConfIllegal(tmp_p
) || !ServerConfAutoconn(tmp_p
))
364 cltmp
= tmp_p
->class;
367 * Skip this entry if the use of it is still on hold until
368 * future. Otherwise handle this entry (and set it on hold
369 * until next time). Will reset only hold times, if already
370 * made one successfull connection... [this algorithm is
371 * a bit fuzzy... -- msa >;) ]
373 if(tmp_p
->hold
> rb_current_time())
375 if(next
> tmp_p
->hold
|| next
== 0)
380 confrq
= get_con_freq(cltmp
);
381 tmp_p
->hold
= rb_current_time() + confrq
;
384 * Found a CONNECT config with port specified, scan clients
385 * and see if this server is already connected?
387 client_p
= find_server(NULL
, tmp_p
->name
);
389 if(!client_p
&& (CurrUsers(cltmp
) < MaxUsers(cltmp
)) && !connecting
)
393 /* We connect only one at time... */
397 if((next
> tmp_p
->hold
) || (next
== 0))
401 /* TODO: change this to set active flag to 0 when added to event! --Habeeb */
402 if(GlobalSetOptions
.autoconn
== 0)
408 /* move this connect entry to end.. */
409 rb_dlinkDelete(&server_p
->node
, &server_conf_list
);
410 rb_dlinkAddTail(server_p
, &server_p
->node
, &server_conf_list
);
413 * We used to only print this if serv_connect() actually
414 * suceeded, but since rb_tcp_connect() can call the callback
415 * immediately if there is an error, we were getting error messages
416 * in the wrong order. SO, we just print out the activated line,
417 * and let serv_connect() / serv_connect_callback() print an
418 * error afterwards if it fails.
421 #ifndef HIDE_SERVERS_IPS
422 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
423 "Connection to %s[%s] activated.",
424 server_p
->name
, server_p
->host
);
426 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
427 "Connection to %s activated",
431 serv_connect(server_p
, 0);
435 check_server(const char *name
, struct Client
*client_p
)
437 struct server_conf
*server_p
= NULL
;
438 struct server_conf
*tmp_p
;
442 s_assert(NULL
!= client_p
);
446 if(!(client_p
->localClient
->passwd
))
449 if(strlen(name
) > HOSTLEN
)
452 RB_DLINK_FOREACH(ptr
, server_conf_list
.head
)
456 if(ServerConfIllegal(tmp_p
))
459 if(!match(tmp_p
->name
, name
))
464 /* XXX: Fix me for IPv6 */
465 /* XXX sockhost is the IPv4 ip as a string */
466 if(match(tmp_p
->host
, client_p
->host
) ||
467 match(tmp_p
->host
, client_p
->sockhost
))
471 if(ServerConfEncrypted(tmp_p
))
473 if(!strcmp(tmp_p
->passwd
, crypt(client_p
->localClient
->passwd
,
480 else if(!strcmp(tmp_p
->passwd
, client_p
->localClient
->passwd
))
491 attach_server_conf(client_p
, server_p
);
493 /* clear ZIP/TB if they support but we dont want them */
495 if(!ServerConfCompressed(server_p
))
497 ClearCap(client_p
, CAP_ZIP
);
499 if(!ServerConfTb(server_p
))
500 ClearCap(client_p
, CAP_TB
);
508 * inputs - Client pointer to send to
509 * - int flag of capabilities that this server has
511 * side effects - send the CAPAB line to a server -orabidoo
515 send_capabilities(struct Client
*client_p
, int cap_can_send
)
517 struct Capability
*cap
;
518 char msgbuf
[BUFSIZE
];
524 for (cap
= captab
; cap
->name
; ++cap
)
526 if(cap
->cap
& cap_can_send
)
528 tl
= rb_sprintf(t
, "%s ", cap
->name
);
536 sendto_one(client_p
, "CAPAB :%s", msgbuf
);
541 * input - client to burst to, channel name, list to burst, mode flag
543 * side effects - client is sent a list of +b, or +e, or +I modes
546 burst_modes_TS5(struct Client
*client_p
, char *chname
, rb_dlink_list
*list
, char flag
)
550 char mbuf
[MODEBUFLEN
];
559 mlen
= rb_sprintf(buf
, ":%s MODE %s +", me
.name
, chname
);
565 RB_DLINK_FOREACH(ptr
, list
->head
)
568 tlen
= strlen(banptr
->banstr
) + 3;
571 if(tlen
> MODEBUFLEN
)
574 if((count
>= MAXMODEPARAMS
) || ((cur_len
+ tlen
+ 2) > (BUFSIZE
- 3)))
576 sendto_one(client_p
, "%s%s %s", buf
, mbuf
, pbuf
);
586 pp
+= rb_sprintf(pp
, "%s ", banptr
->banstr
);
592 sendto_one(client_p
, "%s%s %s", buf
, mbuf
, pbuf
);
597 * input - client to burst to, channel name, list to burst, mode flag
599 * side effects - client is sent a list of +b, +e, or +I modes
602 burst_modes_TS6(struct Client
*client_p
, struct Channel
*chptr
,
603 rb_dlink_list
*list
, char flag
)
612 cur_len
= mlen
= rb_sprintf(buf
, ":%s BMASK %ld %s %c :",
613 me
.id
, (long) chptr
->channelts
, chptr
->chname
, flag
);
616 RB_DLINK_FOREACH(ptr
, list
->head
)
620 tlen
= strlen(banptr
->banstr
) + 1;
623 if(cur_len
+ tlen
> BUFSIZE
- 3)
625 /* the one we're trying to send doesnt fit at all! */
632 /* chop off trailing space and send.. */
634 sendto_one(client_p
, "%s", buf
);
639 rb_sprintf(t
, "%s ", banptr
->banstr
);
644 /* cant ever exit the loop above without having modified buf,
645 * chop off trailing space and send.
648 sendto_one(client_p
, "%s", buf
);
654 * inputs - client (server) to send nick towards
655 * - client to send nick for
657 * side effects - NICK message is sent towards given client_p
660 burst_TS5(struct Client
*client_p
)
662 static char ubuf
[12];
663 struct Client
*target_p
;
664 struct Channel
*chptr
;
665 struct membership
*msptr
;
666 hook_data_client hclientinfo
;
667 hook_data_channel hchaninfo
;
674 hclientinfo
.client
= hchaninfo
.client
= client_p
;
676 RB_DLINK_FOREACH(ptr
, global_client_list
.head
)
678 target_p
= ptr
->data
;
680 if(!IsPerson(target_p
))
683 send_umode(NULL
, target_p
, 0, 0, ubuf
);
690 sendto_one(client_p
, "NICK %s %d %ld %s %s %s %s :%s",
691 target_p
->name
, target_p
->hopcount
+ 1,
692 (long) target_p
->tsinfo
, ubuf
,
693 target_p
->username
, target_p
->host
,
694 target_p
->servptr
->name
, target_p
->info
);
696 if(IsDynSpoof(target_p
))
697 sendto_one(client_p
, ":%s ENCAP * REALHOST %s",
698 target_p
->name
, target_p
->orighost
);
699 if(!EmptyString(target_p
->user
->suser
))
700 sendto_one(client_p
, ":%s ENCAP * LOGIN %s",
701 target_p
->name
, target_p
->user
->suser
);
703 if(ConfigFileEntry
.burst_away
&& !EmptyString(target_p
->user
->away
))
704 sendto_one(client_p
, ":%s AWAY :%s",
705 target_p
->name
, target_p
->user
->away
);
707 hclientinfo
.target
= target_p
;
708 call_hook(h_burst_client
, &hclientinfo
);
711 RB_DLINK_FOREACH(ptr
, global_channel_list
.head
)
715 if(*chptr
->chname
!= '#')
718 cur_len
= mlen
= rb_sprintf(buf
, ":%s SJOIN %ld %s %s :", me
.name
,
719 (long) chptr
->channelts
, chptr
->chname
,
720 channel_modes(chptr
, client_p
));
724 RB_DLINK_FOREACH(uptr
, chptr
->members
.head
)
728 tlen
= strlen(msptr
->client_p
->name
) + 1;
734 if(cur_len
+ tlen
>= BUFSIZE
- 3)
738 sendto_one(client_p
, "%s", buf
);
743 rb_sprintf(t
, "%s%s ", find_channel_status(msptr
, 1),
744 msptr
->client_p
->name
);
750 if (rb_dlink_list_length(&chptr
->members
) > 0)
752 /* remove trailing space */
756 sendto_one(client_p
, "%s", buf
);
758 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->banlist
, 'b');
760 if(IsCapable(client_p
, CAP_EX
))
761 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->exceptlist
, 'e');
763 if(IsCapable(client_p
, CAP_IE
))
764 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->invexlist
, 'I');
766 burst_modes_TS5(client_p
, chptr
->chname
, &chptr
->quietlist
, 'q');
768 if(IsCapable(client_p
, CAP_TB
) && chptr
->topic
!= NULL
)
769 sendto_one(client_p
, ":%s TB %s %ld %s%s:%s",
770 me
.name
, chptr
->chname
, (long) chptr
->topic_time
,
771 ConfigChannel
.burst_topicwho
? chptr
->topic_info
: "",
772 ConfigChannel
.burst_topicwho
? " " : "",
775 hchaninfo
.chptr
= chptr
;
776 call_hook(h_burst_channel
, &hchaninfo
);
779 hclientinfo
.target
= NULL
;
780 call_hook(h_burst_finished
, &hclientinfo
);
786 * inputs - client (server) to send nick towards
787 * - client to send nick for
789 * side effects - NICK message is sent towards given client_p
792 burst_TS6(struct Client
*client_p
)
794 static char ubuf
[12];
795 struct Client
*target_p
;
796 struct Channel
*chptr
;
797 struct membership
*msptr
;
798 hook_data_client hclientinfo
;
799 hook_data_channel hchaninfo
;
806 hclientinfo
.client
= hchaninfo
.client
= client_p
;
808 RB_DLINK_FOREACH(ptr
, global_client_list
.head
)
810 target_p
= ptr
->data
;
812 if(!IsPerson(target_p
))
815 send_umode(NULL
, target_p
, 0, 0, ubuf
);
822 if(has_id(target_p
) && IsCapable(client_p
, CAP_EUID
))
823 sendto_one(client_p
, ":%s EUID %s %d %ld %s %s %s %s %s %s %s :%s",
824 target_p
->servptr
->id
, target_p
->name
,
825 target_p
->hopcount
+ 1,
826 (long) target_p
->tsinfo
, ubuf
,
827 target_p
->username
, target_p
->host
,
828 IsIPSpoof(target_p
) ? "0" : target_p
->sockhost
,
830 IsDynSpoof(target_p
) ? target_p
->orighost
: "*",
831 EmptyString(target_p
->user
->suser
) ? "*" : target_p
->user
->suser
,
833 else if(has_id(target_p
))
834 sendto_one(client_p
, ":%s UID %s %d %ld %s %s %s %s %s :%s",
835 target_p
->servptr
->id
, target_p
->name
,
836 target_p
->hopcount
+ 1,
837 (long) target_p
->tsinfo
, ubuf
,
838 target_p
->username
, target_p
->host
,
839 IsIPSpoof(target_p
) ? "0" : target_p
->sockhost
,
840 target_p
->id
, target_p
->info
);
842 sendto_one(client_p
, "NICK %s %d %ld %s %s %s %s :%s",
844 target_p
->hopcount
+ 1,
845 (long) target_p
->tsinfo
,
847 target_p
->username
, target_p
->host
,
848 target_p
->servptr
->name
, target_p
->info
);
850 if(!has_id(target_p
) || !IsCapable(client_p
, CAP_EUID
))
852 if(IsDynSpoof(target_p
))
853 sendto_one(client_p
, ":%s ENCAP * REALHOST %s",
854 use_id(target_p
), target_p
->orighost
);
855 if(!EmptyString(target_p
->user
->suser
))
856 sendto_one(client_p
, ":%s ENCAP * LOGIN %s",
857 use_id(target_p
), target_p
->user
->suser
);
860 if(ConfigFileEntry
.burst_away
&& !EmptyString(target_p
->user
->away
))
861 sendto_one(client_p
, ":%s AWAY :%s",
863 target_p
->user
->away
);
865 hclientinfo
.target
= target_p
;
866 call_hook(h_burst_client
, &hclientinfo
);
869 RB_DLINK_FOREACH(ptr
, global_channel_list
.head
)
873 if(*chptr
->chname
!= '#')
876 cur_len
= mlen
= rb_sprintf(buf
, ":%s SJOIN %ld %s %s :", me
.id
,
877 (long) chptr
->channelts
, chptr
->chname
,
878 channel_modes(chptr
, client_p
));
882 RB_DLINK_FOREACH(uptr
, chptr
->members
.head
)
886 tlen
= strlen(use_id(msptr
->client_p
)) + 1;
892 if(cur_len
+ tlen
>= BUFSIZE
- 3)
895 sendto_one(client_p
, "%s", buf
);
900 rb_sprintf(t
, "%s%s ", find_channel_status(msptr
, 1),
901 use_id(msptr
->client_p
));
907 if (rb_dlink_list_length(&chptr
->members
) > 0)
909 /* remove trailing space */
912 sendto_one(client_p
, "%s", buf
);
914 if(rb_dlink_list_length(&chptr
->banlist
) > 0)
915 burst_modes_TS6(client_p
, chptr
, &chptr
->banlist
, 'b');
917 if(IsCapable(client_p
, CAP_EX
) &&
918 rb_dlink_list_length(&chptr
->exceptlist
) > 0)
919 burst_modes_TS6(client_p
, chptr
, &chptr
->exceptlist
, 'e');
921 if(IsCapable(client_p
, CAP_IE
) &&
922 rb_dlink_list_length(&chptr
->invexlist
) > 0)
923 burst_modes_TS6(client_p
, chptr
, &chptr
->invexlist
, 'I');
925 if(rb_dlink_list_length(&chptr
->quietlist
) > 0)
926 burst_modes_TS6(client_p
, chptr
, &chptr
->quietlist
, 'q');
928 if(IsCapable(client_p
, CAP_TB
) && chptr
->topic
!= NULL
)
929 sendto_one(client_p
, ":%s TB %s %ld %s%s:%s",
930 me
.id
, chptr
->chname
, (long) chptr
->topic_time
,
931 ConfigChannel
.burst_topicwho
? chptr
->topic_info
: "",
932 ConfigChannel
.burst_topicwho
? " " : "",
935 hchaninfo
.chptr
= chptr
;
936 call_hook(h_burst_channel
, &hchaninfo
);
939 hclientinfo
.target
= NULL
;
940 call_hook(h_burst_finished
, &hclientinfo
);
944 * show_capabilities - show current server capabilities
946 * inputs - pointer to an struct Client
947 * output - pointer to static string
948 * side effects - build up string representing capabilities of server listed
951 show_capabilities(struct Client
*target_p
)
953 static char msgbuf
[BUFSIZE
];
954 struct Capability
*cap
;
959 tl
= rb_sprintf(msgbuf
, "TS ");
962 if(!IsServer(target_p
) || !target_p
->serv
->caps
) /* short circuit if no caps */
968 for (cap
= captab
; cap
->cap
; ++cap
)
970 if(cap
->cap
& target_p
->serv
->caps
)
972 tl
= rb_sprintf(t
, "%s ", cap
->name
);
986 * inputs - pointer to a struct Client
991 server_estab(struct Client
*client_p
)
993 struct Client
*target_p
;
994 struct server_conf
*server_p
;
995 hook_data_client hdata
;
998 char note
[HOSTLEN
+ 15];
1000 s_assert(NULL
!= client_p
);
1001 if(client_p
== NULL
)
1004 host
= client_p
->name
;
1006 if((server_p
= client_p
->localClient
->att_sconf
) == NULL
)
1008 /* This shouldn't happen, better tell the ops... -A1kmm */
1009 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1010 "Warning: Lost connect{} block for server %s!", host
);
1011 return exit_client(client_p
, client_p
, client_p
, "Lost connect{} block!");
1014 /* We shouldn't have to check this, it should already done before
1015 * server_estab is called. -A1kmm
1017 if(client_p
->localClient
->passwd
)
1019 memset(client_p
->localClient
->passwd
, 0, strlen(client_p
->localClient
->passwd
));
1020 rb_free(client_p
->localClient
->passwd
);
1021 client_p
->localClient
->passwd
= NULL
;
1024 /* Its got identd , since its a server */
1027 /* If there is something in the serv_list, it might be this
1028 * connecting server..
1030 if(!ServerInfo
.hub
&& serv_list
.head
)
1032 if(client_p
!= serv_list
.head
->data
|| serv_list
.head
->next
)
1034 ServerStats
->is_ref
++;
1035 sendto_one(client_p
, "ERROR :I'm a leaf not a hub");
1036 return exit_client(client_p
, client_p
, client_p
, "I'm a leaf");
1040 if(IsUnknown(client_p
))
1043 * jdc -- 1. Use EmptyString(), not [0] index reference.
1044 * 2. Check ->spasswd, not ->passwd.
1046 if(!EmptyString(server_p
->spasswd
))
1048 sendto_one(client_p
, "PASS %s TS %d :%s",
1049 server_p
->spasswd
, TS_CURRENT
, me
.id
);
1052 /* pass info to new server */
1053 send_capabilities(client_p
, default_server_capabs
1054 | (ServerConfCompressed(server_p
) ? CAP_ZIP_SUPPORTED
: 0)
1055 | (ServerConfTb(server_p
) ? CAP_TB
: 0));
1057 sendto_one(client_p
, "SERVER %s 1 :%s%s",
1059 ConfigServerHide
.hidden
? "(H) " : "",
1060 (me
.info
[0]) ? (me
.info
) : "IRCers United");
1063 if(!rb_set_buffers(client_p
->localClient
->F
, READBUF_SIZE
))
1064 report_error("rb_set_buffers failed for server %s:%s",
1065 get_server_name(client_p
, SHOW_IP
),
1066 log_client_name(client_p
, SHOW_IP
), errno
);
1068 /* Hand the server off to servlink now */
1069 if(IsCapable(client_p
, CAP_ZIP
))
1071 if(fork_server(client_p
) < 0)
1073 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1074 "Warning: fork failed for server %s -- check servlink_path (%s)",
1075 get_server_name(client_p
, HIDE_IP
),
1076 ConfigFileEntry
.servlink_path
);
1077 return exit_client(client_p
, client_p
, client_p
, "Fork failed");
1080 SetServlink(client_p
);
1083 sendto_one(client_p
, "SVINFO %d %d 0 :%ld", TS_CURRENT
, TS_MIN
, rb_current_time());
1085 client_p
->servptr
= &me
;
1087 if(IsAnyDead(client_p
))
1088 return CLIENT_EXITED
;
1090 SetServer(client_p
);
1092 /* Update the capability combination usage counts */
1093 set_chcap_usage_counts(client_p
);
1095 rb_dlinkAdd(client_p
, &client_p
->lnode
, &me
.serv
->servers
);
1096 del_unknown_ip(client_p
);
1097 rb_dlinkMoveNode(&client_p
->localClient
->tnode
, &unknown_list
, &serv_list
);
1098 rb_dlinkAddTailAlloc(client_p
, &global_serv_list
);
1100 if(has_id(client_p
))
1101 add_to_id_hash(client_p
->id
, client_p
);
1103 add_to_client_hash(client_p
->name
, client_p
);
1104 /* doesnt duplicate client_p->serv if allocated this struct already */
1105 make_server(client_p
);
1107 client_p
->serv
->caps
= client_p
->localClient
->caps
;
1109 if(client_p
->localClient
->fullcaps
)
1111 client_p
->serv
->fullcaps
= rb_strdup(client_p
->localClient
->fullcaps
);
1112 rb_free(client_p
->localClient
->fullcaps
);
1113 client_p
->localClient
->fullcaps
= NULL
;
1116 client_p
->serv
->nameinfo
= scache_connect(client_p
->name
, client_p
->info
, IsHidden(client_p
));
1117 client_p
->localClient
->firsttime
= rb_current_time();
1118 /* fixing eob timings.. -gnp */
1120 if((rb_dlink_list_length(&lclient_list
) + rb_dlink_list_length(&serv_list
)) >
1121 (unsigned long)MaxConnectionCount
)
1122 MaxConnectionCount
= rb_dlink_list_length(&lclient_list
) +
1123 rb_dlink_list_length(&serv_list
);
1125 /* Show the real host/IP to admins */
1126 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1127 "Link with %s established: (%s) link",
1128 get_server_name(client_p
, SHOW_IP
),
1129 show_capabilities(client_p
));
1131 ilog(L_SERVER
, "Link with %s established: (%s) link",
1132 log_client_name(client_p
, SHOW_IP
), show_capabilities(client_p
));
1135 hdata
.target
= client_p
;
1136 call_hook(h_server_introduced
, &hdata
);
1138 if(HasServlink(client_p
))
1140 /* we won't overflow FD_DESC_SZ here, as it can hold
1141 * client_p->name + 64
1143 rb_snprintf(note
, sizeof note
, "slink data: %s", client_p
->name
);
1144 rb_note(client_p
->localClient
->F
, note
);
1145 // rb_note(client_p->localClient->ctrlfd, "slink ctrl: %s", client_p->name);
1149 rb_snprintf(note
, sizeof note
, "Server: %s", client_p
->name
);
1150 rb_note(client_p
->localClient
->F
, note
);
1154 ** Old sendto_serv_but_one() call removed because we now
1155 ** need to send different names to different servers
1156 ** (domain name matching) Send new server to other servers.
1158 RB_DLINK_FOREACH(ptr
, serv_list
.head
)
1160 target_p
= ptr
->data
;
1162 if(target_p
== client_p
)
1165 if(has_id(target_p
) && has_id(client_p
))
1167 sendto_one(target_p
, ":%s SID %s 2 %s :%s%s",
1168 me
.id
, client_p
->name
, client_p
->id
,
1169 IsHidden(client_p
) ? "(H) " : "", client_p
->info
);
1171 if(IsCapable(target_p
, CAP_ENCAP
) &&
1172 !EmptyString(client_p
->serv
->fullcaps
))
1173 sendto_one(target_p
, ":%s ENCAP * GCAP :%s",
1174 client_p
->id
, client_p
->serv
->fullcaps
);
1178 sendto_one(target_p
, ":%s SERVER %s 2 :%s%s",
1179 me
.name
, client_p
->name
,
1180 IsHidden(client_p
) ? "(H) " : "", client_p
->info
);
1182 if(IsCapable(target_p
, CAP_ENCAP
) &&
1183 !EmptyString(client_p
->serv
->fullcaps
))
1184 sendto_one(target_p
, ":%s ENCAP * GCAP :%s",
1185 client_p
->name
, client_p
->serv
->fullcaps
);
1190 ** Pass on my client information to the new server
1192 ** First, pass only servers (idea is that if the link gets
1193 ** cancelled beacause the server was already there,
1194 ** there are no NICK's to be cancelled...). Of course,
1195 ** if cancellation occurs, all this info is sent anyway,
1196 ** and I guess the link dies when a read is attempted...? --msa
1198 ** Note: Link cancellation to occur at this point means
1199 ** that at least two servers from my fragment are building
1200 ** up connection this other fragment at the same time, it's
1201 ** a race condition, not the normal way of operation...
1203 ** ALSO NOTE: using the get_client_name for server names--
1204 ** see previous *WARNING*!!! (Also, original inpath
1207 RB_DLINK_FOREACH(ptr
, global_serv_list
.head
)
1209 target_p
= ptr
->data
;
1211 /* target_p->from == target_p for target_p == client_p */
1212 if(IsMe(target_p
) || target_p
->from
== client_p
)
1215 /* presumption, if target has an id, so does its uplink */
1216 if(has_id(client_p
) && has_id(target_p
))
1217 sendto_one(client_p
, ":%s SID %s %d %s :%s%s",
1218 target_p
->servptr
->id
, target_p
->name
,
1219 target_p
->hopcount
+ 1, target_p
->id
,
1220 IsHidden(target_p
) ? "(H) " : "", target_p
->info
);
1222 sendto_one(client_p
, ":%s SERVER %s %d :%s%s",
1223 target_p
->servptr
->name
,
1224 target_p
->name
, target_p
->hopcount
+ 1,
1225 IsHidden(target_p
) ? "(H) " : "", target_p
->info
);
1227 if(IsCapable(client_p
, CAP_ENCAP
) &&
1228 !EmptyString(target_p
->serv
->fullcaps
))
1229 sendto_one(client_p
, ":%s ENCAP * GCAP :%s",
1230 get_id(target_p
, client_p
),
1231 target_p
->serv
->fullcaps
);
1234 if(has_id(client_p
))
1235 burst_TS6(client_p
);
1237 burst_TS5(client_p
);
1239 /* Always send a PING after connect burst is done */
1240 sendto_one(client_p
, "PING :%s", get_id(&me
, client_p
));
1242 free_pre_client(client_p
);
1248 start_io(struct Client
*server
)
1250 unsigned char *iobuf
;
1255 iobuf
= rb_malloc(256); /* XXX: This seems arbitrary. Perhaps make it IRCD_BUFSIZE? --nenolod */
1257 if(IsCapable(server
, CAP_ZIP
))
1260 iobuf
[c
++] = SLINKCMD_SET_ZIP_OUT_LEVEL
;
1261 iobuf
[c
++] = 0; /* | */
1262 iobuf
[c
++] = 1; /* \ len is 1 */
1263 iobuf
[c
++] = ConfigFileEntry
.compression_level
;
1264 iobuf
[c
++] = SLINKCMD_START_ZIP_IN
;
1265 iobuf
[c
++] = SLINKCMD_START_ZIP_OUT
;
1268 while (MyConnect(server
))
1272 iobuf
= rb_realloc(iobuf
, (c
+ READBUF_SIZE
+ 64));
1274 /* store data in c+3 to allow for SLINKCMD_INJECT_RECVQ and len u16 */
1275 linelen
= rb_linebuf_get(&server
->localClient
->buf_recvq
, (char *) (iobuf
+ c
+ 3), READBUF_SIZE
, LINEBUF_PARTIAL
, LINEBUF_RAW
); /* include partial lines */
1279 iobuf
[c
++] = SLINKCMD_INJECT_RECVQ
;
1280 iobuf
[c
++] = (linelen
>> 8);
1281 iobuf
[c
++] = (linelen
& 0xff);
1288 while (MyConnect(server
))
1292 iobuf
= rb_realloc(iobuf
, (c
+ BUF_DATA_SIZE
+ 64));
1294 /* store data in c+3 to allow for SLINKCMD_INJECT_RECVQ and len u16 */
1295 linelen
= rb_linebuf_get(&server
->localClient
->buf_sendq
,
1296 (char *) (iobuf
+ c
+ 3), READBUF_SIZE
,
1297 LINEBUF_PARTIAL
, LINEBUF_PARSED
); /* include partial lines */
1301 iobuf
[c
++] = SLINKCMD_INJECT_SENDQ
;
1302 iobuf
[c
++] = (linelen
>> 8);
1303 iobuf
[c
++] = (linelen
& 0xff);
1311 iobuf
[c
++] = SLINKCMD_INIT
;
1313 server
->localClient
->slinkq
= iobuf
;
1314 server
->localClient
->slinkq_ofs
= 0;
1315 server
->localClient
->slinkq_len
= c
;
1317 /* schedule a write */
1318 //XXX send_queued_slink_write(server->localClient->ctrlF, server);
1324 * inputs - struct Client *server
1325 * output - success: 0 / failure: -1
1326 * side effect - fork, and exec SERVLINK to handle this connection
1329 fork_server(struct Client
*server
)
1338 char slink
[] = "-slink";
1342 #ifdef HAVE_SOCKETPAIR
1343 if(socketpair(AF_UNIX
, SOCK_STREAM
, 0, ctrl_fds
) < 0)
1345 if(inet_socketpair(AF_INET
,SOCK_STREAM
, 0, ctrl_fds
) < 0)
1352 #ifdef HAVE_SOCKETPAIR
1353 if(socketpair(AF_UNIX
, SOCK_STREAM
, 0, data_fds
) < 0)
1355 if(inet_socketpair(AF_INET
,SOCK_STREAM
, 0, data_fds
) < 0)
1361 if((ret
= vfork()) < 0)
1363 if((ret
= fork()) < 0)
1368 int maxconn
= maxconnections
;
1370 /* set our fds as non blocking and close everything else */
1371 for (i
= 0; i
< maxconn
; i
++)
1375 if((i
== ctrl_fds
[1]) || (i
== data_fds
[1]) || (i
== rb_get_fd(server
->localClient
->F
)))
1377 // XXX rb_set_nb(i);
1382 if(i
> 2) /* don't close std* */
1388 rb_snprintf(fd_str
[0], sizeof(fd_str
[0]), "%d", ctrl_fds
[1]);
1389 rb_snprintf(fd_str
[1], sizeof(fd_str
[1]), "%d", data_fds
[1]);
1390 rb_snprintf(fd_str
[2], sizeof(fd_str
[2]), "%d", rb_get_fd(server
->localClient
->F
));
1391 kid_argv
[0] = slink
;
1392 kid_argv
[1] = fd_str
[0];
1393 kid_argv
[2] = fd_str
[1];
1394 kid_argv
[3] = fd_str
[2];
1397 /* exec servlink program */
1398 execv(ConfigFileEntry
.servlink_path
, kid_argv
);
1400 /* We're still here, abort. */
1405 rb_close(server
->localClient
->F
);
1407 /* close the childs end of the pipes */
1411 s_assert(server
->localClient
);
1412 // server->localClient->ctrlfd = ctrl_fds[0];
1413 server
->localClient
->F
= rb_open(data_fds
[0], RB_FD_PIPE
, "servlink data");
1415 if(!rb_set_nb(server
->localClient
->F
))
1417 report_error("Cannot set slink fd nonblocking for server %s:%s",
1418 get_server_name(server
, SHOW_IP
),
1419 log_client_name(server
, SHOW_IP
),
1423 /* if(!rb_set_nb(server->localClient->ctrlfd))
1425 report_error("Cannot set slink fd nonblocking for server %s:%s",
1426 get_server_name(server, SHOW_IP),
1427 log_client_name(server, SHOW_IP),
1431 rb_open(server->localClient->ctrlfd, FD_SOCKET, NULL);
1434 read_packet(server
->localClient
->F
, server
);
1440 /* this is ugly, but nicer than repeating
1441 * about 50 close() statements everywhre... */
1450 * New server connection code
1451 * Based upon the stuff floating about in s_bsd.c
1456 * serv_connect() - initiate a server connection
1458 * inputs - pointer to conf
1459 * - pointer to client doing the connet
1463 * This code initiates a connection to a server. It first checks to make
1464 * sure the given server exists. If this is the case, it creates a socket,
1465 * creates a client, saves the socket information in the client, and
1466 * initiates a connection to the server through rb_connect_tcp(). The
1467 * completion of this goes through serv_completed_connection().
1469 * We return 1 if the connection is attempted, since we don't know whether
1470 * it suceeded or not, and 0 if it fails in here somewhere.
1473 serv_connect(struct server_conf
*server_p
, struct Client
*by
)
1475 struct Client
*client_p
;
1476 struct rb_sockaddr_storage myipnum
, theiripnum
;
1478 char vhoststr
[HOSTIPLEN
];
1479 char note
[HOSTLEN
+ 10];
1481 s_assert(server_p
!= NULL
);
1482 if(server_p
== NULL
)
1486 * Make sure this server isn't already connected
1488 if((client_p
= find_server(NULL
, server_p
->name
)))
1490 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1491 "Server %s already present from %s",
1492 server_p
->name
, get_server_name(client_p
, SHOW_IP
));
1493 if(by
&& IsPerson(by
) && !MyClient(by
))
1494 sendto_one_notice(by
, ":Server %s already present from %s",
1495 server_p
->name
, get_server_name(client_p
, SHOW_IP
));
1499 if (rb_inet_pton_sock(server_p
->host
, (struct sockaddr
*)&theiripnum
) <= 0)
1501 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1502 "Server %s host is a DNS name which is currently not implemented",
1504 if(by
&& IsPerson(by
) && !MyClient(by
))
1505 sendto_one_notice(by
, ":Server %s host is a DNS name which is currently not implemented",
1511 if(theiripnum
.ss_family
== AF_INET6
)
1512 ((struct sockaddr_in6
*)&theiripnum
)->sin6_port
= htons(server_p
->port
);
1515 ((struct sockaddr_in
*)&theiripnum
)->sin_port
= htons(server_p
->port
);
1517 /* create a socket for the server connection */
1518 if((F
= rb_socket(server_p
->aftype
, SOCK_STREAM
, 0, NULL
)) != NULL
)
1520 /* Eek, failure to create the socket */
1521 report_error("opening stream socket to %s: %s",
1522 server_p
->name
, server_p
->name
, errno
);
1526 rb_snprintf(note
, sizeof note
, "Server: %s", server_p
->name
);
1529 /* Create a local client */
1530 client_p
= make_client(NULL
);
1532 /* Copy in the server, hostname, fd
1533 * The sockhost may be a hostname, this will be corrected later
1536 strlcpy(client_p
->name
, server_p
->name
, sizeof(client_p
->name
));
1537 strlcpy(client_p
->host
, server_p
->host
, sizeof(client_p
->host
));
1538 strlcpy(client_p
->sockhost
, server_p
->host
, sizeof(client_p
->sockhost
));
1539 memcpy(&client_p
->localClient
->ip
, &theiripnum
, sizeof(client_p
->localClient
->ip
));
1540 client_p
->localClient
->F
= F
;
1543 * Set up the initial server evilness, ripped straight from
1544 * connect_server(), so don't blame me for it being evil.
1548 if(!rb_set_buffers(client_p
->localClient
->F
, READBUF_SIZE
))
1550 report_error("rb_set_buffers failed for server %s:%s",
1551 get_server_name(client_p
, SHOW_IP
),
1552 log_client_name(client_p
, SHOW_IP
),
1557 * Attach config entries to client here rather than in
1558 * serv_connect_callback(). This to avoid null pointer references.
1560 attach_server_conf(client_p
, server_p
);
1563 * at this point we have a connection in progress and C/N lines
1564 * attached to the client, the socket info should be saved in the
1565 * client and it should either be resolved or have a valid address.
1567 * The socket has been connected or connect is in progress.
1569 make_server(client_p
);
1570 if(by
&& IsPerson(by
))
1572 strcpy(client_p
->serv
->by
, by
->name
);
1573 if(client_p
->serv
->user
)
1574 free_user(client_p
->serv
->user
, NULL
);
1575 client_p
->serv
->user
= by
->user
;
1580 strcpy(client_p
->serv
->by
, "AutoConn.");
1581 if(client_p
->serv
->user
)
1582 free_user(client_p
->serv
->user
, NULL
);
1583 client_p
->serv
->user
= NULL
;
1585 SetConnecting(client_p
);
1586 rb_dlinkAddTail(client_p
, &client_p
->node
, &global_client_list
);
1588 if(ServerConfVhosted(server_p
))
1590 memcpy(&myipnum
, &server_p
->my_ipnum
, sizeof(myipnum
));
1591 ((struct sockaddr_in
*)&myipnum
)->sin_port
= 0;
1592 myipnum
.ss_family
= server_p
->aftype
;
1595 else if(server_p
->aftype
== AF_INET
&& ServerInfo
.specific_ipv4_vhost
)
1597 memcpy(&myipnum
, &ServerInfo
.ip
, sizeof(myipnum
));
1598 ((struct sockaddr_in
*)&myipnum
)->sin_port
= 0;
1599 myipnum
.ss_family
= AF_INET
;
1600 SET_SS_LEN(&myipnum
, sizeof(struct sockaddr_in
));
1604 else if((server_p
->aftype
== AF_INET6
) && ServerInfo
.specific_ipv6_vhost
)
1606 memcpy(&myipnum
, &ServerInfo
.ip6
, sizeof(myipnum
));
1607 ((struct sockaddr_in6
*)&myipnum
)->sin6_port
= 0;
1608 myipnum
.ss_family
= AF_INET6
;
1609 SET_SS_LEN(&myipnum
, sizeof(struct sockaddr_in6
));
1615 ilog(L_SERVER
, "Connecting to %s[%s] port %d (%s)", server_p
->name
, server_p
->host
, server_p
->port
,
1617 server_p
->aftype
== AF_INET6
? "IPv6" :
1619 (server_p
->aftype
== AF_INET
? "IPv4" : "?"));
1621 rb_connect_tcp(client_p
->localClient
->F
,
1622 (struct sockaddr
*) &theiripnum
,
1624 serv_connect_callback
, client_p
,
1625 ConfigFileEntry
.connect_timeout
);
1630 inetntop_sock((struct sockaddr
*)&myipnum
, vhoststr
, sizeof vhoststr
);
1631 ilog(L_SERVER
, "Connecting to %s[%s] port %d (%s) (vhost %s)", server_p
->name
, server_p
->host
, server_p
->port
,
1633 server_p
->aftype
== AF_INET6
? "IPv6" :
1635 (server_p
->aftype
== AF_INET
? "IPv4" : "?"), vhoststr
);
1638 rb_connect_tcp(client_p
->localClient
->F
,
1639 (struct sockaddr
*) &theiripnum
,
1640 (struct sockaddr
*) &myipnum
, GET_SS_LEN(&myipnum
),
1641 serv_connect_callback
, client_p
,
1642 ConfigFileEntry
.connect_timeout
);
1648 * serv_connect_callback() - complete a server connection.
1650 * This routine is called after the server connection attempt has
1651 * completed. If unsucessful, an error is sent to ops and the client
1652 * is closed. If sucessful, it goes through the initialisation/check
1653 * procedures, the capabilities are sent, and the socket is then
1654 * marked for reading.
1657 serv_connect_callback(rb_fde_t
*F
, int status
, void *data
)
1659 struct Client
*client_p
= data
;
1660 struct server_conf
*server_p
;
1663 /* First, make sure its a real client! */
1664 s_assert(client_p
!= NULL
);
1665 s_assert(client_p
->localClient
->F
== F
);
1667 if(client_p
== NULL
)
1670 /* while we were waiting for the callback, its possible this already
1673 if(find_server(NULL
, client_p
->name
) != NULL
)
1675 exit_client(client_p
, client_p
, &me
, "Server Exists");
1680 /* Next, for backward purposes, record the ip of the server */
1681 memcpy(&client_p
->localClient
->ip
, &F
->connect
.hostaddr
, sizeof client_p
->localClient
->ip
);
1682 /* Set sockhost properly now -- jilles */
1683 inetntop_sock((struct sockaddr
*)&F
->connect
.hostaddr
,
1684 client_p
->sockhost
, sizeof client_p
->sockhost
);
1687 /* Check the status */
1690 /* COMM_ERR_TIMEOUT wont have an errno associated with it,
1691 * the others will.. --fl
1693 if(status
== RB_ERR_TIMEOUT
)
1695 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1696 "Error connecting to %s[%s]: %s",
1698 #ifdef HIDE_SERVERS_IPS
1704 ilog(L_SERVER
, "Error connecting to %s[%s]: %s",
1705 client_p
->name
, client_p
->sockhost
,
1710 errstr
= strerror(rb_get_sockerr(F
));
1711 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1712 "Error connecting to %s[%s]: %s (%s)",
1714 #ifdef HIDE_SERVERS_IPS
1719 rb_errstr(status
), errstr
);
1720 ilog(L_SERVER
, "Error connecting to %s[%s]: %s (%s)",
1721 client_p
->name
, client_p
->sockhost
,
1722 rb_errstr(status
), errstr
);
1725 exit_client(client_p
, client_p
, &me
, rb_errstr(status
));
1729 /* COMM_OK, so continue the connection procedure */
1730 /* Get the C/N lines */
1731 if((server_p
= client_p
->localClient
->att_sconf
) == NULL
)
1733 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
, "Lost connect{} block for %s",
1734 get_server_name(client_p
, HIDE_IP
));
1735 exit_client(client_p
, client_p
, &me
, "Lost connect{} block");
1739 /* Next, send the initial handshake */
1740 SetHandshake(client_p
);
1742 /* kludge, if we're not using TS6, dont ever send
1743 * ourselves as being TS6 capable.
1745 if(!EmptyString(server_p
->spasswd
))
1747 sendto_one(client_p
, "PASS %s TS %d :%s",
1748 server_p
->spasswd
, TS_CURRENT
, me
.id
);
1751 /* pass my info to the new server */
1752 send_capabilities(client_p
, default_server_capabs
1753 | (ServerConfCompressed(server_p
) ? CAP_ZIP_SUPPORTED
: 0)
1754 | (ServerConfTb(server_p
) ? CAP_TB
: 0));
1756 sendto_one(client_p
, "SERVER %s 1 :%s%s",
1758 ConfigServerHide
.hidden
? "(H) " : "", me
.info
);
1761 * If we've been marked dead because a send failed, just exit
1762 * here now and save everyone the trouble of us ever existing.
1764 if(IsAnyDead(client_p
))
1766 sendto_realops_snomask(SNO_GENERAL
, is_remote_connect(client_p
) ? L_NETWIDE
: L_ALL
,
1767 "%s went dead during handshake", client_p
->name
);
1768 exit_client(client_p
, client_p
, &me
, "Went dead during handshake");
1772 /* don't move to serv_list yet -- we haven't sent a burst! */
1774 /* If we get here, we're ok, so lets start reading some data */
1775 read_packet(F
, client_p
);
1778 #ifndef HAVE_SOCKETPAIR
1780 inet_socketpair(int d
, int type
, int protocol
, int sv
[2])
1782 struct sockaddr_in addr1
, addr2
, addr3
;
1783 int addr3_len
= sizeof(addr3
);
1785 int port_no
= 20000;
1787 if(d
!= AF_INET
|| type
!= SOCK_STREAM
|| protocol
)
1789 errno
= EAFNOSUPPORT
;
1792 if(((sv
[0] = socket(AF_INET
, SOCK_STREAM
, 0)) < 0) || ((sv
[1] = socket(AF_INET
, SOCK_STREAM
, 0)) < 0))
1795 addr1
.sin_port
= htons(port_no
);
1796 addr1
.sin_family
= AF_INET
;
1797 addr1
.sin_addr
.s_addr
= htonl(INADDR_LOOPBACK
);
1798 while ((rc
= bind (sv
[0], (struct sockaddr
*) &addr1
, sizeof (addr1
))) < 0 && errno
== EADDRINUSE
)
1799 addr1
.sin_port
= htons(++port_no
);
1804 if(listen(sv
[0], 1) < 0)
1811 addr2
.sin_port
= htons(port_no
);
1812 addr2
.sin_family
= AF_INET
;
1813 addr2
.sin_addr
.s_addr
= htonl(INADDR_LOOPBACK
);
1814 if(connect (sv
[1], (struct sockaddr
*) &addr2
, sizeof (addr2
)) < 0)
1821 if((fd
= accept(sv
[1], (struct sockaddr
*) &addr3
, &addr3_len
)) < 0)