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212380e3 AC |
1 | /* |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * s_serv.c: Server related functions. | |
4 | * | |
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 | * | |
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. | |
13 | * | |
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. | |
18 | * | |
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 | |
22 | * USA | |
23 | * | |
cda8e9b8 | 24 | * $Id: s_serv.c 3550 2007-08-09 06:47:26Z nenolod $ |
212380e3 AC |
25 | */ |
26 | ||
27 | #include "stdinc.h" | |
28 | ||
29 | #ifdef HAVE_LIBCRYPTO | |
30 | #include <openssl/rsa.h> | |
31 | #endif | |
32 | ||
212380e3 AC |
33 | #include "s_serv.h" |
34 | #include "class.h" | |
35 | #include "client.h" | |
36 | #include "common.h" | |
212380e3 | 37 | #include "hash.h" |
4562c604 | 38 | #include "match.h" |
212380e3 AC |
39 | #include "ircd.h" |
40 | #include "ircd_defs.h" | |
41 | #include "numeric.h" | |
42 | #include "packet.h" | |
212380e3 AC |
43 | #include "s_conf.h" |
44 | #include "s_newconf.h" | |
4016731b | 45 | #include "logger.h" |
212380e3 AC |
46 | #include "s_stats.h" |
47 | #include "s_user.h" | |
48 | #include "scache.h" | |
49 | #include "send.h" | |
50 | #include "client.h" | |
212380e3 AC |
51 | #include "channel.h" /* chcap_usage_counts stuff... */ |
52 | #include "hook.h" | |
53 | #include "msg.h" | |
54015b5f | 54 | #include "reject.h" |
c6d72037 | 55 | #include "sslproc.h" |
346fba92 | 56 | #include "capability.h" |
77d3d2db | 57 | #include "s_assert.h" |
212380e3 | 58 | |
212380e3 AC |
59 | #ifndef INADDR_NONE |
60 | #define INADDR_NONE ((unsigned int) 0xffffffff) | |
61 | #endif | |
62 | ||
212380e3 AC |
63 | int MaxConnectionCount = 1; |
64 | int MaxClientCount = 1; | |
65 | int refresh_user_links = 0; | |
66 | ||
67 | static char buf[BUFSIZE]; | |
68 | ||
212380e3 AC |
69 | /* |
70 | * list of recognized server capabilities. "TS" is not on the list | |
71 | * because all servers that we talk to already do TS, and the kludged | |
72 | * extra argument to "PASS" takes care of checking that. -orabidoo | |
73 | */ | |
346fba92 AC |
74 | struct CapabilityIndex *serv_capindex = NULL; |
75 | ||
76 | unsigned int CAP_CAP; | |
77 | unsigned int CAP_QS; | |
78 | unsigned int CAP_EX; | |
79 | unsigned int CAP_CHW; | |
80 | unsigned int CAP_IE; | |
81 | unsigned int CAP_KLN; | |
82 | unsigned int CAP_ZIP; | |
83 | unsigned int CAP_KNOCK; | |
84 | unsigned int CAP_TB; | |
85 | unsigned int CAP_UNKLN; | |
86 | unsigned int CAP_CLUSTER; | |
87 | unsigned int CAP_ENCAP; | |
88 | unsigned int CAP_TS6; | |
89 | unsigned int CAP_SERVICE; | |
90 | unsigned int CAP_RSFNC; | |
91 | unsigned int CAP_SAVE; | |
92 | unsigned int CAP_EUID; | |
93 | unsigned int CAP_EOPMOD; | |
94 | unsigned int CAP_BAN; | |
95 | unsigned int CAP_MLOCK; | |
96 | ||
97 | /* | |
98 | * initialize our builtin capability table. --nenolod | |
99 | */ | |
100 | void | |
101 | init_builtin_capabs(void) | |
102 | { | |
885cd603 | 103 | serv_capindex = capability_index_create("server capabilities"); |
346fba92 | 104 | |
22cae20f JT |
105 | /* These two are not set via CAPAB/GCAP keywords. */ |
106 | CAP_CAP = capability_put_anonymous(serv_capindex); | |
107 | CAP_TS6 = capability_put_anonymous(serv_capindex); | |
108 | ||
346fba92 AC |
109 | CAP_QS = capability_put(serv_capindex, "QS"); |
110 | CAP_EX = capability_put(serv_capindex, "EX"); | |
111 | CAP_CHW = capability_put(serv_capindex, "CHW"); | |
112 | CAP_IE = capability_put(serv_capindex, "IE"); | |
113 | CAP_KLN = capability_put(serv_capindex, "KLN"); | |
114 | CAP_KNOCK = capability_put(serv_capindex, "KNOCK"); | |
115 | CAP_ZIP = capability_put(serv_capindex, "ZIP"); | |
116 | CAP_TB = capability_put(serv_capindex, "TB"); | |
117 | CAP_UNKLN = capability_put(serv_capindex, "UNKLN"); | |
118 | CAP_CLUSTER = capability_put(serv_capindex, "CLUSTER"); | |
119 | CAP_ENCAP = capability_put(serv_capindex, "ENCAP"); | |
120 | CAP_SERVICE = capability_put(serv_capindex, "SERVICES"); | |
121 | CAP_RSFNC = capability_put(serv_capindex, "RSFNC"); | |
122 | CAP_SAVE = capability_put(serv_capindex, "SAVE"); | |
123 | CAP_EUID = capability_put(serv_capindex, "EUID"); | |
124 | CAP_EOPMOD = capability_put(serv_capindex, "EOPMOD"); | |
125 | CAP_BAN = capability_put(serv_capindex, "BAN"); | |
126 | CAP_MLOCK = capability_put(serv_capindex, "MLOCK"); | |
58b60c20 JT |
127 | |
128 | capability_require(serv_capindex, "QS"); | |
d0c2fc82 JT |
129 | capability_require(serv_capindex, "EX"); |
130 | capability_require(serv_capindex, "IE"); | |
58b60c20 | 131 | capability_require(serv_capindex, "ENCAP"); |
346fba92 | 132 | } |
212380e3 | 133 | |
212380e3 | 134 | static CNCB serv_connect_callback; |
c6d72037 | 135 | static CNCB serv_connect_ssl_callback; |
212380e3 AC |
136 | |
137 | /* | |
138 | * hunt_server - Do the basic thing in delivering the message (command) | |
139 | * across the relays to the specific server (server) for | |
140 | * actions. | |
141 | * | |
142 | * Note: The command is a format string and *MUST* be | |
143 | * of prefixed style (e.g. ":%s COMMAND %s ..."). | |
144 | * Command can have only max 8 parameters. | |
145 | * | |
146 | * server parv[server] is the parameter identifying the | |
147 | * target server. | |
148 | * | |
149 | * *WARNING* | |
150 | * parv[server] is replaced with the pointer to the | |
151 | * real servername from the matched client (I'm lazy | |
152 | * now --msa). | |
153 | * | |
154 | * returns: (see #defines) | |
155 | */ | |
156 | int | |
157 | hunt_server(struct Client *client_p, struct Client *source_p, | |
158 | const char *command, int server, int parc, const char *parv[]) | |
159 | { | |
160 | struct Client *target_p; | |
161 | int wilds; | |
330fc5c1 | 162 | rb_dlink_node *ptr; |
212380e3 AC |
163 | const char *old; |
164 | char *new; | |
165 | ||
166 | /* | |
167 | * Assume it's me, if no server | |
168 | */ | |
169 | if(parc <= server || EmptyString(parv[server]) || | |
4d7a1ee5 | 170 | match(parv[server], me.name) || (strcmp(parv[server], me.id) == 0)) |
212380e3 | 171 | return (HUNTED_ISME); |
346fba92 | 172 | |
212380e3 AC |
173 | new = LOCAL_COPY(parv[server]); |
174 | ||
175 | /* | |
176 | * These are to pickup matches that would cause the following | |
177 | * message to go in the wrong direction while doing quick fast | |
178 | * non-matching lookups. | |
179 | */ | |
180 | if(MyClient(source_p)) | |
181 | target_p = find_named_client(new); | |
182 | else | |
183 | target_p = find_client(new); | |
184 | ||
185 | if(target_p) | |
186 | if(target_p->from == source_p->from && !MyConnect(target_p)) | |
187 | target_p = NULL; | |
188 | ||
212380e3 AC |
189 | collapse(new); |
190 | wilds = (strchr(new, '?') || strchr(new, '*')); | |
191 | ||
192 | /* | |
193 | * Again, if there are no wild cards involved in the server | |
194 | * name, use the hash lookup | |
195 | */ | |
cd300c1b | 196 | if(!target_p && wilds) |
212380e3 | 197 | { |
2fb07961 | 198 | RB_DLINK_FOREACH(ptr, global_serv_list.head) |
212380e3 | 199 | { |
cd300c1b | 200 | if(match(new, ((struct Client *) (ptr->data))->name)) |
212380e3 | 201 | { |
cd300c1b JT |
202 | target_p = ptr->data; |
203 | break; | |
212380e3 AC |
204 | } |
205 | } | |
206 | } | |
207 | ||
cd300c1b JT |
208 | if(target_p && !IsRegistered(target_p)) |
209 | target_p = NULL; | |
210 | ||
212380e3 AC |
211 | if(target_p) |
212 | { | |
212380e3 AC |
213 | if(IsMe(target_p) || MyClient(target_p)) |
214 | return HUNTED_ISME; | |
215 | ||
216 | old = parv[server]; | |
217 | parv[server] = get_id(target_p, target_p); | |
218 | ||
219 | sendto_one(target_p, command, get_id(source_p, target_p), | |
220 | parv[1], parv[2], parv[3], parv[4], parv[5], parv[6], parv[7], parv[8]); | |
221 | parv[server] = old; | |
222 | return (HUNTED_PASS); | |
223 | } | |
224 | ||
95d36ef5 | 225 | if(MyClient(source_p) || !IsDigit(parv[server][0])) |
212380e3 AC |
226 | sendto_one_numeric(source_p, ERR_NOSUCHSERVER, |
227 | form_str(ERR_NOSUCHSERVER), parv[server]); | |
228 | return (HUNTED_NOSUCH); | |
229 | } | |
230 | ||
231 | /* | |
232 | * try_connections - scan through configuration and try new connections. | |
233 | * Returns the calendar time when the next call to this | |
234 | * function should be made latest. (No harm done if this | |
235 | * is called earlier or later...) | |
236 | */ | |
237 | void | |
238 | try_connections(void *unused) | |
239 | { | |
240 | struct Client *client_p; | |
241 | struct server_conf *server_p = NULL; | |
242 | struct server_conf *tmp_p; | |
243 | struct Class *cltmp; | |
330fc5c1 | 244 | rb_dlink_node *ptr; |
212380e3 AC |
245 | int connecting = FALSE; |
246 | int confrq = 0; | |
247 | time_t next = 0; | |
248 | ||
5cefa1d6 | 249 | RB_DLINK_FOREACH(ptr, server_conf_list.head) |
212380e3 AC |
250 | { |
251 | tmp_p = ptr->data; | |
252 | ||
253 | if(ServerConfIllegal(tmp_p) || !ServerConfAutoconn(tmp_p)) | |
254 | continue; | |
255 | ||
f4a759c5 VY |
256 | /* don't allow ssl connections if ssl isn't setup */ |
257 | if(ServerConfSSL(tmp_p) && (!ssl_ok || !get_ssld_count())) | |
c6d72037 VY |
258 | continue; |
259 | ||
212380e3 AC |
260 | cltmp = tmp_p->class; |
261 | ||
262 | /* | |
263 | * Skip this entry if the use of it is still on hold until | |
264 | * future. Otherwise handle this entry (and set it on hold | |
265 | * until next time). Will reset only hold times, if already | |
266 | * made one successfull connection... [this algorithm is | |
267 | * a bit fuzzy... -- msa >;) ] | |
268 | */ | |
e3354945 | 269 | if(tmp_p->hold > rb_current_time()) |
212380e3 AC |
270 | { |
271 | if(next > tmp_p->hold || next == 0) | |
272 | next = tmp_p->hold; | |
273 | continue; | |
274 | } | |
275 | ||
276 | confrq = get_con_freq(cltmp); | |
e3354945 | 277 | tmp_p->hold = rb_current_time() + confrq; |
212380e3 AC |
278 | |
279 | /* | |
280 | * Found a CONNECT config with port specified, scan clients | |
281 | * and see if this server is already connected? | |
282 | */ | |
283 | client_p = find_server(NULL, tmp_p->name); | |
284 | ||
285 | if(!client_p && (CurrUsers(cltmp) < MaxUsers(cltmp)) && !connecting) | |
286 | { | |
287 | server_p = tmp_p; | |
288 | ||
289 | /* We connect only one at time... */ | |
290 | connecting = TRUE; | |
291 | } | |
292 | ||
293 | if((next > tmp_p->hold) || (next == 0)) | |
294 | next = tmp_p->hold; | |
295 | } | |
296 | ||
297 | /* TODO: change this to set active flag to 0 when added to event! --Habeeb */ | |
298 | if(GlobalSetOptions.autoconn == 0) | |
299 | return; | |
300 | ||
301 | if(!connecting) | |
302 | return; | |
303 | ||
304 | /* move this connect entry to end.. */ | |
330fc5c1 AC |
305 | rb_dlinkDelete(&server_p->node, &server_conf_list); |
306 | rb_dlinkAddTail(server_p, &server_p->node, &server_conf_list); | |
212380e3 AC |
307 | |
308 | /* | |
309 | * We used to only print this if serv_connect() actually | |
b2f0da88 | 310 | * suceeded, but since rb_tcp_connect() can call the callback |
212380e3 AC |
311 | * immediately if there is an error, we were getting error messages |
312 | * in the wrong order. SO, we just print out the activated line, | |
313 | * and let serv_connect() / serv_connect_callback() print an | |
314 | * error afterwards if it fails. | |
315 | * -- adrian | |
316 | */ | |
212380e3 AC |
317 | sendto_realops_snomask(SNO_GENERAL, L_ALL, |
318 | "Connection to %s activated", | |
319 | server_p->name); | |
212380e3 AC |
320 | |
321 | serv_connect(server_p, 0); | |
322 | } | |
323 | ||
324 | int | |
325 | check_server(const char *name, struct Client *client_p) | |
326 | { | |
327 | struct server_conf *server_p = NULL; | |
328 | struct server_conf *tmp_p; | |
330fc5c1 | 329 | rb_dlink_node *ptr; |
212380e3 | 330 | int error = -1; |
e69375f3 | 331 | const char *encr; |
212380e3 AC |
332 | |
333 | s_assert(NULL != client_p); | |
334 | if(client_p == NULL) | |
335 | return error; | |
336 | ||
337 | if(!(client_p->localClient->passwd)) | |
338 | return -2; | |
339 | ||
340 | if(strlen(name) > HOSTLEN) | |
341 | return -4; | |
342 | ||
5cefa1d6 | 343 | RB_DLINK_FOREACH(ptr, server_conf_list.head) |
212380e3 AC |
344 | { |
345 | tmp_p = ptr->data; | |
346 | ||
347 | if(ServerConfIllegal(tmp_p)) | |
348 | continue; | |
349 | ||
350 | if(!match(tmp_p->name, name)) | |
351 | continue; | |
352 | ||
353 | error = -3; | |
354 | ||
355 | /* XXX: Fix me for IPv6 */ | |
356 | /* XXX sockhost is the IPv4 ip as a string */ | |
357 | if(match(tmp_p->host, client_p->host) || | |
358 | match(tmp_p->host, client_p->sockhost)) | |
359 | { | |
360 | error = -2; | |
361 | ||
ff0cc1e6 | 362 | if(tmp_p->passwd) |
212380e3 | 363 | { |
ff0cc1e6 | 364 | if(ServerConfEncrypted(tmp_p)) |
212380e3 | 365 | { |
e69375f3 JT |
366 | encr = rb_crypt(client_p->localClient->passwd, |
367 | tmp_p->passwd); | |
368 | if(encr != NULL && !strcmp(tmp_p->passwd, encr)) | |
ff0cc1e6 AC |
369 | { |
370 | server_p = tmp_p; | |
371 | break; | |
372 | } | |
373 | else | |
374 | continue; | |
212380e3 | 375 | } |
ff0cc1e6 AC |
376 | else if(strcmp(tmp_p->passwd, client_p->localClient->passwd)) |
377 | continue; | |
212380e3 | 378 | } |
ff0cc1e6 AC |
379 | |
380 | if(tmp_p->certfp) | |
212380e3 | 381 | { |
ff0cc1e6 AC |
382 | if(!client_p->certfp || strcasecmp(tmp_p->certfp, client_p->certfp) != 0) |
383 | continue; | |
212380e3 | 384 | } |
ff0cc1e6 AC |
385 | |
386 | server_p = tmp_p; | |
387 | break; | |
212380e3 AC |
388 | } |
389 | } | |
390 | ||
391 | if(server_p == NULL) | |
392 | return error; | |
393 | ||
f4a759c5 VY |
394 | if(ServerConfSSL(server_p) && client_p->localClient->ssl_ctl == NULL) |
395 | { | |
396 | return -5; | |
c6d72037 VY |
397 | } |
398 | ||
212380e3 AC |
399 | attach_server_conf(client_p, server_p); |
400 | ||
401 | /* clear ZIP/TB if they support but we dont want them */ | |
402 | #ifdef HAVE_LIBZ | |
403 | if(!ServerConfCompressed(server_p)) | |
404 | #endif | |
405 | ClearCap(client_p, CAP_ZIP); | |
406 | ||
407 | if(!ServerConfTb(server_p)) | |
408 | ClearCap(client_p, CAP_TB); | |
409 | ||
410 | return 0; | |
411 | } | |
412 | ||
413 | /* | |
414 | * send_capabilities | |
415 | * | |
416 | * inputs - Client pointer to send to | |
417 | * - int flag of capabilities that this server has | |
418 | * output - NONE | |
419 | * side effects - send the CAPAB line to a server -orabidoo | |
420 | * | |
421 | */ | |
422 | void | |
346fba92 | 423 | send_capabilities(struct Client *client_p, unsigned int cap_can_send) |
212380e3 | 424 | { |
346fba92 | 425 | sendto_one(client_p, "CAPAB :%s", capability_index_list(serv_capindex, cap_can_send)); |
212380e3 AC |
426 | } |
427 | ||
431a1a27 JT |
428 | static void |
429 | burst_ban(struct Client *client_p) | |
430 | { | |
431 | rb_dlink_node *ptr; | |
432 | struct ConfItem *aconf; | |
433 | const char *type, *oper; | |
434 | /* +5 for !,@,{,} and null */ | |
435 | char operbuf[NICKLEN + USERLEN + HOSTLEN + HOSTLEN + 5]; | |
436 | char *p; | |
437 | size_t melen; | |
438 | ||
439 | melen = strlen(me.name); | |
440 | RB_DLINK_FOREACH(ptr, prop_bans.head) | |
441 | { | |
442 | aconf = ptr->data; | |
443 | ||
444 | /* Skip expired stuff. */ | |
445 | if(aconf->lifetime < rb_current_time()) | |
446 | continue; | |
447 | switch(aconf->status & ~CONF_ILLEGAL) | |
448 | { | |
449 | case CONF_KILL: type = "K"; break; | |
450 | case CONF_DLINE: type = "D"; break; | |
451 | case CONF_XLINE: type = "X"; break; | |
452 | case CONF_RESV_NICK: type = "R"; break; | |
453 | case CONF_RESV_CHANNEL: type = "R"; break; | |
454 | default: | |
455 | continue; | |
456 | } | |
457 | oper = aconf->info.oper; | |
458 | if(aconf->flags & CONF_FLAGS_MYOPER) | |
459 | { | |
460 | /* Our operator{} names may not be meaningful | |
461 | * to other servers, so rewrite to our server | |
462 | * name. | |
463 | */ | |
464 | rb_strlcpy(operbuf, aconf->info.oper, sizeof buf); | |
465 | p = strrchr(operbuf, '{'); | |
ee6da53d JT |
466 | if (p != NULL && |
467 | operbuf + sizeof operbuf - p > (ptrdiff_t)(melen + 2)) | |
431a1a27 JT |
468 | { |
469 | memcpy(p + 1, me.name, melen); | |
470 | p[melen + 1] = '}'; | |
471 | p[melen + 2] = '\0'; | |
472 | oper = operbuf; | |
473 | } | |
474 | } | |
cedb7d05 | 475 | sendto_one(client_p, ":%s BAN %s %s %s %lu %d %d %s :%s%s%s", |
431a1a27 | 476 | me.id, |
431a1a27 JT |
477 | type, |
478 | aconf->user ? aconf->user : "*", aconf->host, | |
479 | (unsigned long)aconf->created, | |
480 | (int)(aconf->hold - aconf->created), | |
481 | (int)(aconf->lifetime - aconf->created), | |
482 | oper, | |
483 | aconf->passwd, | |
484 | aconf->spasswd ? "|" : "", | |
485 | aconf->spasswd ? aconf->spasswd : ""); | |
486 | } | |
487 | } | |
488 | ||
212380e3 AC |
489 | /* burst_modes_TS6() |
490 | * | |
491 | * input - client to burst to, channel name, list to burst, mode flag | |
492 | * output - | |
493 | * side effects - client is sent a list of +b, +e, or +I modes | |
494 | */ | |
495 | static void | |
55abcbb2 | 496 | burst_modes_TS6(struct Client *client_p, struct Channel *chptr, |
330fc5c1 | 497 | rb_dlink_list *list, char flag) |
212380e3 | 498 | { |
330fc5c1 | 499 | rb_dlink_node *ptr; |
212380e3 AC |
500 | struct Ban *banptr; |
501 | char *t; | |
502 | int tlen; | |
503 | int mlen; | |
504 | int cur_len; | |
505 | ||
b2f0da88 | 506 | cur_len = mlen = rb_sprintf(buf, ":%s BMASK %ld %s %c :", |
212380e3 AC |
507 | me.id, (long) chptr->channelts, chptr->chname, flag); |
508 | t = buf + mlen; | |
509 | ||
5cefa1d6 | 510 | RB_DLINK_FOREACH(ptr, list->head) |
212380e3 AC |
511 | { |
512 | banptr = ptr->data; | |
513 | ||
7f0fc87d | 514 | tlen = strlen(banptr->banstr) + (banptr->forward ? strlen(banptr->forward) + 1 : 0) + 1; |
212380e3 AC |
515 | |
516 | /* uh oh */ | |
517 | if(cur_len + tlen > BUFSIZE - 3) | |
518 | { | |
519 | /* the one we're trying to send doesnt fit at all! */ | |
520 | if(cur_len == mlen) | |
521 | { | |
522 | s_assert(0); | |
523 | continue; | |
524 | } | |
525 | ||
526 | /* chop off trailing space and send.. */ | |
527 | *(t-1) = '\0'; | |
528 | sendto_one(client_p, "%s", buf); | |
529 | cur_len = mlen; | |
530 | t = buf + mlen; | |
531 | } | |
532 | ||
7f0fc87d JT |
533 | if (banptr->forward) |
534 | rb_sprintf(t, "%s$%s ", banptr->banstr, banptr->forward); | |
535 | else | |
536 | rb_sprintf(t, "%s ", banptr->banstr); | |
212380e3 AC |
537 | t += tlen; |
538 | cur_len += tlen; | |
539 | } | |
540 | ||
541 | /* cant ever exit the loop above without having modified buf, | |
542 | * chop off trailing space and send. | |
543 | */ | |
544 | *(t-1) = '\0'; | |
545 | sendto_one(client_p, "%s", buf); | |
546 | } | |
547 | ||
212380e3 AC |
548 | /* |
549 | * burst_TS6 | |
55abcbb2 | 550 | * |
212380e3 AC |
551 | * inputs - client (server) to send nick towards |
552 | * - client to send nick for | |
553 | * output - NONE | |
554 | * side effects - NICK message is sent towards given client_p | |
555 | */ | |
556 | static void | |
557 | burst_TS6(struct Client *client_p) | |
558 | { | |
9744d53e | 559 | char ubuf[BUFSIZE]; |
212380e3 AC |
560 | struct Client *target_p; |
561 | struct Channel *chptr; | |
562 | struct membership *msptr; | |
563 | hook_data_client hclientinfo; | |
564 | hook_data_channel hchaninfo; | |
330fc5c1 AC |
565 | rb_dlink_node *ptr; |
566 | rb_dlink_node *uptr; | |
212380e3 AC |
567 | char *t; |
568 | int tlen, mlen; | |
569 | int cur_len = 0; | |
570 | ||
571 | hclientinfo.client = hchaninfo.client = client_p; | |
572 | ||
5cefa1d6 | 573 | RB_DLINK_FOREACH(ptr, global_client_list.head) |
212380e3 AC |
574 | { |
575 | target_p = ptr->data; | |
576 | ||
577 | if(!IsPerson(target_p)) | |
578 | continue; | |
579 | ||
29c92cf9 | 580 | send_umode(NULL, target_p, 0, ubuf); |
212380e3 AC |
581 | if(!*ubuf) |
582 | { | |
583 | ubuf[0] = '+'; | |
584 | ubuf[1] = '\0'; | |
585 | } | |
586 | ||
bea2295f | 587 | if(IsCapable(client_p, CAP_EUID)) |
212380e3 AC |
588 | sendto_one(client_p, ":%s EUID %s %d %ld %s %s %s %s %s %s %s :%s", |
589 | target_p->servptr->id, target_p->name, | |
55abcbb2 | 590 | target_p->hopcount + 1, |
212380e3 AC |
591 | (long) target_p->tsinfo, ubuf, |
592 | target_p->username, target_p->host, | |
593 | IsIPSpoof(target_p) ? "0" : target_p->sockhost, | |
594 | target_p->id, | |
595 | IsDynSpoof(target_p) ? target_p->orighost : "*", | |
596 | EmptyString(target_p->user->suser) ? "*" : target_p->user->suser, | |
597 | target_p->info); | |
bea2295f | 598 | else |
212380e3 AC |
599 | sendto_one(client_p, ":%s UID %s %d %ld %s %s %s %s %s :%s", |
600 | target_p->servptr->id, target_p->name, | |
55abcbb2 | 601 | target_p->hopcount + 1, |
212380e3 AC |
602 | (long) target_p->tsinfo, ubuf, |
603 | target_p->username, target_p->host, | |
604 | IsIPSpoof(target_p) ? "0" : target_p->sockhost, | |
605 | target_p->id, target_p->info); | |
bea2295f | 606 | |
8eda114a JT |
607 | if(!EmptyString(target_p->certfp)) |
608 | sendto_one(client_p, ":%s ENCAP * CERTFP :%s", | |
609 | use_id(target_p), target_p->certfp); | |
610 | ||
bea2295f | 611 | if(!IsCapable(client_p, CAP_EUID)) |
212380e3 AC |
612 | { |
613 | if(IsDynSpoof(target_p)) | |
614 | sendto_one(client_p, ":%s ENCAP * REALHOST %s", | |
615 | use_id(target_p), target_p->orighost); | |
616 | if(!EmptyString(target_p->user->suser)) | |
617 | sendto_one(client_p, ":%s ENCAP * LOGIN %s", | |
618 | use_id(target_p), target_p->user->suser); | |
619 | } | |
620 | ||
c127b45b | 621 | if(ConfigFileEntry.burst_away && !EmptyString(target_p->user->away)) |
212380e3 AC |
622 | sendto_one(client_p, ":%s AWAY :%s", |
623 | use_id(target_p), | |
c127b45b | 624 | target_p->user->away); |
212380e3 AC |
625 | |
626 | hclientinfo.target = target_p; | |
627 | call_hook(h_burst_client, &hclientinfo); | |
628 | } | |
629 | ||
5cefa1d6 | 630 | RB_DLINK_FOREACH(ptr, global_channel_list.head) |
212380e3 AC |
631 | { |
632 | chptr = ptr->data; | |
633 | ||
634 | if(*chptr->chname != '#') | |
635 | continue; | |
636 | ||
b2f0da88 | 637 | cur_len = mlen = rb_sprintf(buf, ":%s SJOIN %ld %s %s :", me.id, |
212380e3 AC |
638 | (long) chptr->channelts, chptr->chname, |
639 | channel_modes(chptr, client_p)); | |
640 | ||
641 | t = buf + mlen; | |
642 | ||
5cefa1d6 | 643 | RB_DLINK_FOREACH(uptr, chptr->members.head) |
212380e3 AC |
644 | { |
645 | msptr = uptr->data; | |
646 | ||
647 | tlen = strlen(use_id(msptr->client_p)) + 1; | |
648 | if(is_chanop(msptr)) | |
649 | tlen++; | |
650 | if(is_voiced(msptr)) | |
651 | tlen++; | |
652 | ||
653 | if(cur_len + tlen >= BUFSIZE - 3) | |
654 | { | |
655 | *(t-1) = '\0'; | |
656 | sendto_one(client_p, "%s", buf); | |
657 | cur_len = mlen; | |
658 | t = buf + mlen; | |
659 | } | |
660 | ||
55abcbb2 | 661 | rb_sprintf(t, "%s%s ", find_channel_status(msptr, 1), |
212380e3 AC |
662 | use_id(msptr->client_p)); |
663 | ||
664 | cur_len += tlen; | |
665 | t += tlen; | |
666 | } | |
667 | ||
330fc5c1 | 668 | if (rb_dlink_list_length(&chptr->members) > 0) |
212380e3 AC |
669 | { |
670 | /* remove trailing space */ | |
671 | *(t-1) = '\0'; | |
672 | } | |
673 | sendto_one(client_p, "%s", buf); | |
674 | ||
330fc5c1 | 675 | if(rb_dlink_list_length(&chptr->banlist) > 0) |
212380e3 AC |
676 | burst_modes_TS6(client_p, chptr, &chptr->banlist, 'b'); |
677 | ||
678 | if(IsCapable(client_p, CAP_EX) && | |
330fc5c1 | 679 | rb_dlink_list_length(&chptr->exceptlist) > 0) |
212380e3 AC |
680 | burst_modes_TS6(client_p, chptr, &chptr->exceptlist, 'e'); |
681 | ||
682 | if(IsCapable(client_p, CAP_IE) && | |
330fc5c1 | 683 | rb_dlink_list_length(&chptr->invexlist) > 0) |
212380e3 AC |
684 | burst_modes_TS6(client_p, chptr, &chptr->invexlist, 'I'); |
685 | ||
330fc5c1 | 686 | if(rb_dlink_list_length(&chptr->quietlist) > 0) |
212380e3 AC |
687 | burst_modes_TS6(client_p, chptr, &chptr->quietlist, 'q'); |
688 | ||
689 | if(IsCapable(client_p, CAP_TB) && chptr->topic != NULL) | |
690 | sendto_one(client_p, ":%s TB %s %ld %s%s:%s", | |
691 | me.id, chptr->chname, (long) chptr->topic_time, | |
692 | ConfigChannel.burst_topicwho ? chptr->topic_info : "", | |
693 | ConfigChannel.burst_topicwho ? " " : "", | |
694 | chptr->topic); | |
695 | ||
084ecbe0 | 696 | if(IsCapable(client_p, CAP_MLOCK)) |
6b8db2da | 697 | sendto_one(client_p, ":%s MLOCK %ld %s :%s", |
084ecbe0 | 698 | me.id, (long) chptr->channelts, chptr->chname, |
6b8db2da | 699 | EmptyString(chptr->mode_lock) ? "" : chptr->mode_lock); |
084ecbe0 | 700 | |
212380e3 AC |
701 | hchaninfo.chptr = chptr; |
702 | call_hook(h_burst_channel, &hchaninfo); | |
703 | } | |
704 | ||
705 | hclientinfo.target = NULL; | |
706 | call_hook(h_burst_finished, &hclientinfo); | |
707 | } | |
708 | ||
709 | /* | |
710 | * show_capabilities - show current server capabilities | |
711 | * | |
712 | * inputs - pointer to an struct Client | |
713 | * output - pointer to static string | |
714 | * side effects - build up string representing capabilities of server listed | |
715 | */ | |
716 | const char * | |
717 | show_capabilities(struct Client *target_p) | |
718 | { | |
719 | static char msgbuf[BUFSIZE]; | |
346fba92 AC |
720 | |
721 | *msgbuf = '\0'; | |
212380e3 | 722 | |
f4a759c5 VY |
723 | if(has_id(target_p)) |
724 | rb_strlcpy(msgbuf, " TS6", sizeof(msgbuf)); | |
f4a759c5 VY |
725 | |
726 | if(IsSSL(target_p)) | |
727 | rb_strlcat(msgbuf, " SSL", sizeof(msgbuf)); | |
212380e3 AC |
728 | |
729 | if(!IsServer(target_p) || !target_p->serv->caps) /* short circuit if no caps */ | |
f4a759c5 | 730 | return msgbuf + 1; |
212380e3 | 731 | |
89fd463e | 732 | rb_strlcat(msgbuf, " ", sizeof(msgbuf)); |
346fba92 | 733 | rb_strlcat(msgbuf, capability_index_list(serv_capindex, target_p->serv->caps), sizeof(msgbuf)); |
212380e3 | 734 | |
f4a759c5 | 735 | return msgbuf + 1; |
212380e3 AC |
736 | } |
737 | ||
738 | /* | |
739 | * server_estab | |
740 | * | |
741 | * inputs - pointer to a struct Client | |
742 | * output - | |
743 | * side effects - | |
744 | */ | |
745 | int | |
746 | server_estab(struct Client *client_p) | |
747 | { | |
748 | struct Client *target_p; | |
749 | struct server_conf *server_p; | |
750 | hook_data_client hdata; | |
751 | char *host; | |
330fc5c1 | 752 | rb_dlink_node *ptr; |
6c528b8e | 753 | char note[HOSTLEN + 15]; |
212380e3 AC |
754 | |
755 | s_assert(NULL != client_p); | |
756 | if(client_p == NULL) | |
757 | return -1; | |
212380e3 AC |
758 | |
759 | host = client_p->name; | |
760 | ||
761 | if((server_p = client_p->localClient->att_sconf) == NULL) | |
762 | { | |
763 | /* This shouldn't happen, better tell the ops... -A1kmm */ | |
764 | sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) ? L_NETWIDE : L_ALL, | |
765 | "Warning: Lost connect{} block for server %s!", host); | |
766 | return exit_client(client_p, client_p, client_p, "Lost connect{} block!"); | |
767 | } | |
768 | ||
769 | /* We shouldn't have to check this, it should already done before | |
770 | * server_estab is called. -A1kmm | |
771 | */ | |
772 | if(client_p->localClient->passwd) | |
773 | { | |
774 | memset(client_p->localClient->passwd, 0, strlen(client_p->localClient->passwd)); | |
637c4932 | 775 | rb_free(client_p->localClient->passwd); |
212380e3 AC |
776 | client_p->localClient->passwd = NULL; |
777 | } | |
778 | ||
779 | /* Its got identd , since its a server */ | |
780 | SetGotId(client_p); | |
781 | ||
782 | /* If there is something in the serv_list, it might be this | |
783 | * connecting server.. | |
784 | */ | |
785 | if(!ServerInfo.hub && serv_list.head) | |
786 | { | |
787 | if(client_p != serv_list.head->data || serv_list.head->next) | |
788 | { | |
47adde3d | 789 | ServerStats.is_ref++; |
212380e3 AC |
790 | sendto_one(client_p, "ERROR :I'm a leaf not a hub"); |
791 | return exit_client(client_p, client_p, client_p, "I'm a leaf"); | |
792 | } | |
793 | } | |
794 | ||
795 | if(IsUnknown(client_p)) | |
796 | { | |
ff0cc1e6 | 797 | /* the server may be linking based on certificate fingerprint now. --nenolod */ |
55abcbb2 | 798 | sendto_one(client_p, "PASS %s TS %d :%s", |
ff0cc1e6 | 799 | EmptyString(server_p->spasswd) ? "*" : server_p->spasswd, TS_CURRENT, me.id); |
212380e3 AC |
800 | |
801 | /* pass info to new server */ | |
802 | send_capabilities(client_p, default_server_capabs | |
803 | | (ServerConfCompressed(server_p) ? CAP_ZIP_SUPPORTED : 0) | |
804 | | (ServerConfTb(server_p) ? CAP_TB : 0)); | |
805 | ||
806 | sendto_one(client_p, "SERVER %s 1 :%s%s", | |
807 | me.name, | |
808 | ConfigServerHide.hidden ? "(H) " : "", | |
809 | (me.info[0]) ? (me.info) : "IRCers United"); | |
810 | } | |
811 | ||
6c528b8e | 812 | if(!rb_set_buffers(client_p->localClient->F, READBUF_SIZE)) |
825ddf13 | 813 | ilog_error("rb_set_buffers failed for server"); |
212380e3 | 814 | |
c6d72037 | 815 | /* Enable compression now */ |
f4a759c5 VY |
816 | if(IsCapable(client_p, CAP_ZIP)) |
817 | { | |
818 | start_zlib_session(client_p); | |
819 | } | |
8982edb0 | 820 | sendto_one(client_p, "SVINFO %d %d 0 :%ld", TS_CURRENT, TS_MIN, (long int)rb_current_time()); |
212380e3 AC |
821 | |
822 | client_p->servptr = &me; | |
823 | ||
824 | if(IsAnyDead(client_p)) | |
825 | return CLIENT_EXITED; | |
826 | ||
827 | SetServer(client_p); | |
828 | ||
330fc5c1 | 829 | rb_dlinkAdd(client_p, &client_p->lnode, &me.serv->servers); |
330fc5c1 AC |
830 | rb_dlinkMoveNode(&client_p->localClient->tnode, &unknown_list, &serv_list); |
831 | rb_dlinkAddTailAlloc(client_p, &global_serv_list); | |
212380e3 AC |
832 | |
833 | if(has_id(client_p)) | |
834 | add_to_id_hash(client_p->id, client_p); | |
835 | ||
836 | add_to_client_hash(client_p->name, client_p); | |
837 | /* doesnt duplicate client_p->serv if allocated this struct already */ | |
838 | make_server(client_p); | |
212380e3 AC |
839 | |
840 | client_p->serv->caps = client_p->localClient->caps; | |
841 | ||
842 | if(client_p->localClient->fullcaps) | |
843 | { | |
47a03750 | 844 | client_p->serv->fullcaps = rb_strdup(client_p->localClient->fullcaps); |
637c4932 | 845 | rb_free(client_p->localClient->fullcaps); |
212380e3 AC |
846 | client_p->localClient->fullcaps = NULL; |
847 | } | |
848 | ||
994544c2 | 849 | client_p->serv->nameinfo = scache_connect(client_p->name, client_p->info, IsHidden(client_p)); |
e3354945 | 850 | client_p->localClient->firsttime = rb_current_time(); |
212380e3 AC |
851 | /* fixing eob timings.. -gnp */ |
852 | ||
330fc5c1 | 853 | if((rb_dlink_list_length(&lclient_list) + rb_dlink_list_length(&serv_list)) > |
2f15f871 | 854 | (unsigned long)MaxConnectionCount) |
55abcbb2 | 855 | MaxConnectionCount = rb_dlink_list_length(&lclient_list) + |
330fc5c1 | 856 | rb_dlink_list_length(&serv_list); |
2f15f871 | 857 | |
212380e3 AC |
858 | /* Show the real host/IP to admins */ |
859 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
860 | "Link with %s established: (%s) link", | |
b3ebc7ab | 861 | client_p->name, |
212380e3 AC |
862 | show_capabilities(client_p)); |
863 | ||
864 | ilog(L_SERVER, "Link with %s established: (%s) link", | |
865 | log_client_name(client_p, SHOW_IP), show_capabilities(client_p)); | |
866 | ||
867 | hdata.client = &me; | |
868 | hdata.target = client_p; | |
869 | call_hook(h_server_introduced, &hdata); | |
870 | ||
f4a759c5 | 871 | rb_snprintf(note, sizeof(note), "Server: %s", client_p->name); |
c6d72037 | 872 | rb_note(client_p->localClient->F, note); |
212380e3 AC |
873 | |
874 | /* | |
875 | ** Old sendto_serv_but_one() call removed because we now | |
876 | ** need to send different names to different servers | |
877 | ** (domain name matching) Send new server to other servers. | |
878 | */ | |
5cefa1d6 | 879 | RB_DLINK_FOREACH(ptr, serv_list.head) |
212380e3 AC |
880 | { |
881 | target_p = ptr->data; | |
882 | ||
883 | if(target_p == client_p) | |
884 | continue; | |
885 | ||
886 | if(has_id(target_p) && has_id(client_p)) | |
887 | { | |
888 | sendto_one(target_p, ":%s SID %s 2 %s :%s%s", | |
889 | me.id, client_p->name, client_p->id, | |
890 | IsHidden(client_p) ? "(H) " : "", client_p->info); | |
891 | ||
ce4fa447 | 892 | if(!EmptyString(client_p->serv->fullcaps)) |
212380e3 AC |
893 | sendto_one(target_p, ":%s ENCAP * GCAP :%s", |
894 | client_p->id, client_p->serv->fullcaps); | |
895 | } | |
896 | else | |
897 | { | |
898 | sendto_one(target_p, ":%s SERVER %s 2 :%s%s", | |
899 | me.name, client_p->name, | |
900 | IsHidden(client_p) ? "(H) " : "", client_p->info); | |
901 | ||
ce4fa447 | 902 | if(!EmptyString(client_p->serv->fullcaps)) |
212380e3 AC |
903 | sendto_one(target_p, ":%s ENCAP * GCAP :%s", |
904 | client_p->name, client_p->serv->fullcaps); | |
905 | } | |
906 | } | |
907 | ||
908 | /* | |
909 | ** Pass on my client information to the new server | |
910 | ** | |
911 | ** First, pass only servers (idea is that if the link gets | |
912 | ** cancelled beacause the server was already there, | |
913 | ** there are no NICK's to be cancelled...). Of course, | |
914 | ** if cancellation occurs, all this info is sent anyway, | |
915 | ** and I guess the link dies when a read is attempted...? --msa | |
55abcbb2 | 916 | ** |
212380e3 AC |
917 | ** Note: Link cancellation to occur at this point means |
918 | ** that at least two servers from my fragment are building | |
919 | ** up connection this other fragment at the same time, it's | |
920 | ** a race condition, not the normal way of operation... | |
921 | ** | |
922 | ** ALSO NOTE: using the get_client_name for server names-- | |
923 | ** see previous *WARNING*!!! (Also, original inpath | |
924 | ** is destroyed...) | |
925 | */ | |
5cefa1d6 | 926 | RB_DLINK_FOREACH(ptr, global_serv_list.head) |
212380e3 AC |
927 | { |
928 | target_p = ptr->data; | |
929 | ||
930 | /* target_p->from == target_p for target_p == client_p */ | |
931 | if(IsMe(target_p) || target_p->from == client_p) | |
932 | continue; | |
933 | ||
934 | /* presumption, if target has an id, so does its uplink */ | |
935 | if(has_id(client_p) && has_id(target_p)) | |
936 | sendto_one(client_p, ":%s SID %s %d %s :%s%s", | |
66c8fdd2 | 937 | target_p->servptr->id, target_p->name, |
212380e3 AC |
938 | target_p->hopcount + 1, target_p->id, |
939 | IsHidden(target_p) ? "(H) " : "", target_p->info); | |
940 | else | |
941 | sendto_one(client_p, ":%s SERVER %s %d :%s%s", | |
66c8fdd2 | 942 | target_p->servptr->name, |
212380e3 AC |
943 | target_p->name, target_p->hopcount + 1, |
944 | IsHidden(target_p) ? "(H) " : "", target_p->info); | |
945 | ||
ce4fa447 | 946 | if(!EmptyString(target_p->serv->fullcaps)) |
212380e3 AC |
947 | sendto_one(client_p, ":%s ENCAP * GCAP :%s", |
948 | get_id(target_p, client_p), | |
949 | target_p->serv->fullcaps); | |
950 | } | |
951 | ||
431a1a27 JT |
952 | if(IsCapable(client_p, CAP_BAN)) |
953 | burst_ban(client_p); | |
954 | ||
7bb8c655 | 955 | burst_TS6(client_p); |
212380e3 AC |
956 | |
957 | /* Always send a PING after connect burst is done */ | |
958 | sendto_one(client_p, "PING :%s", get_id(&me, client_p)); | |
959 | ||
960 | free_pre_client(client_p); | |
961 | ||
0bd120ed | 962 | send_pop_queue(client_p); |
212380e3 AC |
963 | |
964 | return 0; | |
212380e3 AC |
965 | } |
966 | ||
967 | /* | |
968 | * New server connection code | |
969 | * Based upon the stuff floating about in s_bsd.c | |
970 | * -- adrian | |
971 | */ | |
972 | ||
973 | /* | |
974 | * serv_connect() - initiate a server connection | |
975 | * | |
1d02144f | 976 | * inputs - pointer to conf |
212380e3 AC |
977 | * - pointer to client doing the connet |
978 | * output - | |
979 | * side effects - | |
980 | * | |
981 | * This code initiates a connection to a server. It first checks to make | |
982 | * sure the given server exists. If this is the case, it creates a socket, | |
983 | * creates a client, saves the socket information in the client, and | |
b2f0da88 | 984 | * initiates a connection to the server through rb_connect_tcp(). The |
212380e3 AC |
985 | * completion of this goes through serv_completed_connection(). |
986 | * | |
987 | * We return 1 if the connection is attempted, since we don't know whether | |
988 | * it suceeded or not, and 0 if it fails in here somewhere. | |
989 | */ | |
990 | int | |
991 | serv_connect(struct server_conf *server_p, struct Client *by) | |
992 | { | |
993 | struct Client *client_p; | |
1d02144f | 994 | struct rb_sockaddr_storage myipnum; |
6c528b8e | 995 | char note[HOSTLEN + 10]; |
1d02144f | 996 | rb_fde_t *F; |
212380e3 AC |
997 | |
998 | s_assert(server_p != NULL); | |
999 | if(server_p == NULL) | |
1000 | return 0; | |
1001 | ||
1d02144f AC |
1002 | /* log */ |
1003 | rb_inet_ntop_sock((struct sockaddr *)&server_p->my_ipnum, buf, sizeof(buf)); | |
1004 | ilog(L_SERVER, "Connect to *[%s] @%s", server_p->name, buf); | |
1005 | ||
212380e3 AC |
1006 | /* |
1007 | * Make sure this server isn't already connected | |
1008 | */ | |
1009 | if((client_p = find_server(NULL, server_p->name))) | |
1010 | { | |
1011 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
1012 | "Server %s already present from %s", | |
b3ebc7ab | 1013 | server_p->name, client_p->name); |
212380e3 AC |
1014 | if(by && IsPerson(by) && !MyClient(by)) |
1015 | sendto_one_notice(by, ":Server %s already present from %s", | |
b3ebc7ab | 1016 | server_p->name, client_p->name); |
212380e3 AC |
1017 | return 0; |
1018 | } | |
1019 | ||
1020 | /* create a socket for the server connection */ | |
1d02144f | 1021 | if((F = rb_socket(GET_SS_FAMILY(&server_p->my_ipnum), SOCK_STREAM, 0, NULL)) == NULL) |
212380e3 | 1022 | { |
825ddf13 | 1023 | ilog_error("opening a stream socket"); |
212380e3 AC |
1024 | return 0; |
1025 | } | |
1026 | ||
1d02144f AC |
1027 | /* servernames are always guaranteed under HOSTLEN chars */ |
1028 | rb_snprintf(note, sizeof(note), "Server: %s", server_p->name); | |
6c528b8e | 1029 | rb_note(F, note); |
212380e3 AC |
1030 | |
1031 | /* Create a local client */ | |
1032 | client_p = make_client(NULL); | |
1033 | ||
1d02144f | 1034 | /* Copy in the server, hostname, fd */ |
f427c8b0 VY |
1035 | rb_strlcpy(client_p->name, server_p->name, sizeof(client_p->name)); |
1036 | rb_strlcpy(client_p->host, server_p->host, sizeof(client_p->host)); | |
1d02144f | 1037 | rb_strlcpy(client_p->sockhost, buf, sizeof(client_p->sockhost)); |
6c528b8e | 1038 | client_p->localClient->F = F; |
b5b4a0e7 | 1039 | add_to_cli_connid_hash(client_p); |
1d02144f AC |
1040 | /* shove the port number into the sockaddr */ |
1041 | #ifdef RB_IPV6 | |
1042 | if(GET_SS_FAMILY(&server_p->my_ipnum) == AF_INET6) | |
1043 | ((struct sockaddr_in6 *)&server_p->my_ipnum)->sin6_port = htons(server_p->port); | |
1044 | else | |
1045 | #endif | |
1046 | ((struct sockaddr_in *)&server_p->my_ipnum)->sin_port = htons(server_p->port); | |
212380e3 AC |
1047 | |
1048 | /* | |
1049 | * Set up the initial server evilness, ripped straight from | |
1050 | * connect_server(), so don't blame me for it being evil. | |
1051 | * -- adrian | |
1052 | */ | |
1053 | ||
6c528b8e | 1054 | if(!rb_set_buffers(client_p->localClient->F, READBUF_SIZE)) |
212380e3 | 1055 | { |
825ddf13 | 1056 | ilog_error("setting the buffer size for a server connection"); |
212380e3 AC |
1057 | } |
1058 | ||
1059 | /* | |
1060 | * Attach config entries to client here rather than in | |
1061 | * serv_connect_callback(). This to avoid null pointer references. | |
1062 | */ | |
1063 | attach_server_conf(client_p, server_p); | |
1064 | ||
1065 | /* | |
1066 | * at this point we have a connection in progress and C/N lines | |
1067 | * attached to the client, the socket info should be saved in the | |
1068 | * client and it should either be resolved or have a valid address. | |
1069 | * | |
1070 | * The socket has been connected or connect is in progress. | |
1071 | */ | |
1072 | make_server(client_p); | |
1d02144f AC |
1073 | if(by && IsClient(by)) |
1074 | strcpy(client_p->serv->by, by->name); | |
212380e3 | 1075 | else |
1d02144f AC |
1076 | strcpy(client_p->serv->by, "AutoConn."); |
1077 | ||
212380e3 | 1078 | SetConnecting(client_p); |
330fc5c1 | 1079 | rb_dlinkAddTail(client_p, &client_p->node, &global_client_list); |
212380e3 | 1080 | |
1d02144f | 1081 | if(ServerConfVhosted(server_p)) |
212380e3 | 1082 | { |
1d02144f AC |
1083 | memcpy(&myipnum, &server_p->my_ipnum, sizeof(myipnum)); |
1084 | ((struct sockaddr_in *)&myipnum)->sin_port = 0; | |
1085 | SET_SS_FAMILY(&myipnum, GET_SS_FAMILY(&server_p->my_ipnum)); | |
abe5dd20 | 1086 | |
abe5dd20 | 1087 | } |
1d02144f | 1088 | else if(GET_SS_FAMILY(&server_p->my_ipnum) == AF_INET && ServerInfo.specific_ipv4_vhost) |
212380e3 | 1089 | { |
1d02144f AC |
1090 | memcpy(&myipnum, &ServerInfo.ip, sizeof(myipnum)); |
1091 | ((struct sockaddr_in *)&myipnum)->sin_port = 0; | |
1092 | SET_SS_FAMILY(&myipnum, AF_INET); | |
1093 | SET_SS_LEN(&myipnum, sizeof(struct sockaddr_in)); | |
1094 | } | |
17648928 | 1095 | |
ccda6e3f | 1096 | #ifdef RB_IPV6 |
1d02144f AC |
1097 | else if((GET_SS_FAMILY(&server_p->my_ipnum) == AF_INET6) && ServerInfo.specific_ipv6_vhost) |
1098 | { | |
1099 | memcpy(&myipnum, &ServerInfo.ip6, sizeof(myipnum)); | |
1100 | ((struct sockaddr_in6 *)&myipnum)->sin6_port = 0; | |
1101 | SET_SS_FAMILY(&myipnum, AF_INET6); | |
1102 | SET_SS_LEN(&myipnum, sizeof(struct sockaddr_in6)); | |
1103 | } | |
17648928 | 1104 | #endif |
1d02144f AC |
1105 | else |
1106 | { | |
1107 | if(ServerConfSSL(server_p)) | |
1108 | { | |
1109 | rb_connect_tcp(client_p->localClient->F, | |
1110 | (struct sockaddr *)&server_p->my_ipnum, NULL, 0, | |
1111 | serv_connect_ssl_callback, client_p, | |
1112 | ConfigFileEntry.connect_timeout); | |
1113 | } | |
1114 | else | |
1115 | rb_connect_tcp(client_p->localClient->F, | |
1116 | (struct sockaddr *)&server_p->my_ipnum, NULL, 0, | |
1117 | serv_connect_callback, client_p, | |
1118 | ConfigFileEntry.connect_timeout); | |
1119 | ||
abe5dd20 JT |
1120 | return 1; |
1121 | } | |
1d02144f AC |
1122 | if(ServerConfSSL(server_p)) |
1123 | rb_connect_tcp(client_p->localClient->F, (struct sockaddr *)&server_p->my_ipnum, | |
1124 | (struct sockaddr *)&myipnum, | |
1125 | GET_SS_LEN(&myipnum), serv_connect_ssl_callback, client_p, | |
1126 | ConfigFileEntry.connect_timeout); | |
1127 | else | |
1128 | rb_connect_tcp(client_p->localClient->F, (struct sockaddr *)&server_p->my_ipnum, | |
1129 | (struct sockaddr *)&myipnum, | |
1130 | GET_SS_LEN(&myipnum), serv_connect_callback, client_p, | |
1131 | ConfigFileEntry.connect_timeout); | |
1132 | ||
1133 | return 1; | |
212380e3 AC |
1134 | } |
1135 | ||
f4a759c5 VY |
1136 | static void |
1137 | serv_connect_ssl_callback(rb_fde_t *F, int status, void *data) | |
1138 | { | |
1139 | struct Client *client_p = data; | |
1140 | rb_fde_t *xF[2]; | |
9ec51326 | 1141 | rb_connect_sockaddr(F, (struct sockaddr *)&client_p->localClient->ip, sizeof(client_p->localClient->ip)); |
f4a759c5 VY |
1142 | if(status != RB_OK) |
1143 | { | |
9ec51326 JT |
1144 | /* Print error message, just like non-SSL. */ |
1145 | serv_connect_callback(F, status, data); | |
f4a759c5 VY |
1146 | return; |
1147 | } | |
eda22d87 JT |
1148 | if(rb_socketpair(AF_UNIX, SOCK_STREAM, 0, &xF[0], &xF[1], "Outgoing ssld connection") == -1) |
1149 | { | |
1150 | ilog_error("rb_socketpair failed for server"); | |
1151 | serv_connect_callback(F, RB_ERROR, data); | |
1152 | return; | |
55abcbb2 | 1153 | |
eda22d87 | 1154 | } |
b5b4a0e7 | 1155 | del_from_cli_connid_hash(client_p); |
f4a759c5 | 1156 | client_p->localClient->F = xF[0]; |
b5b4a0e7 | 1157 | add_to_cli_connid_hash(client_p); |
f4a759c5 VY |
1158 | |
1159 | client_p->localClient->ssl_ctl = start_ssld_connect(F, xF[1], rb_get_fd(xF[0])); | |
1160 | SetSSL(client_p); | |
39452169 | 1161 | serv_connect_callback(client_p->localClient->F, RB_OK, client_p); |
c6d72037 VY |
1162 | } |
1163 | ||
212380e3 AC |
1164 | /* |
1165 | * serv_connect_callback() - complete a server connection. | |
55abcbb2 | 1166 | * |
212380e3 AC |
1167 | * This routine is called after the server connection attempt has |
1168 | * completed. If unsucessful, an error is sent to ops and the client | |
1169 | * is closed. If sucessful, it goes through the initialisation/check | |
1170 | * procedures, the capabilities are sent, and the socket is then | |
1171 | * marked for reading. | |
1172 | */ | |
1173 | static void | |
6c528b8e | 1174 | serv_connect_callback(rb_fde_t *F, int status, void *data) |
212380e3 AC |
1175 | { |
1176 | struct Client *client_p = data; | |
1177 | struct server_conf *server_p; | |
1178 | char *errstr; | |
1179 | ||
1180 | /* First, make sure its a real client! */ | |
1181 | s_assert(client_p != NULL); | |
6c528b8e | 1182 | s_assert(client_p->localClient->F == F); |
212380e3 AC |
1183 | |
1184 | if(client_p == NULL) | |
1185 | return; | |
1186 | ||
1187 | /* while we were waiting for the callback, its possible this already | |
1188 | * linked in.. --fl | |
1189 | */ | |
1190 | if(find_server(NULL, client_p->name) != NULL) | |
1191 | { | |
1192 | exit_client(client_p, client_p, &me, "Server Exists"); | |
1193 | return; | |
1194 | } | |
1195 | ||
f4a759c5 | 1196 | if(client_p->localClient->ssl_ctl == NULL) |
c6d72037 VY |
1197 | rb_connect_sockaddr(F, (struct sockaddr *)&client_p->localClient->ip, sizeof(client_p->localClient->ip)); |
1198 | ||
212380e3 | 1199 | /* Check the status */ |
6c528b8e | 1200 | if(status != RB_OK) |
212380e3 AC |
1201 | { |
1202 | /* COMM_ERR_TIMEOUT wont have an errno associated with it, | |
1203 | * the others will.. --fl | |
1204 | */ | |
6c528b8e | 1205 | if(status == RB_ERR_TIMEOUT) |
212380e3 AC |
1206 | { |
1207 | sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) ? L_NETWIDE : L_ALL, | |
1208 | "Error connecting to %s[%s]: %s", | |
55abcbb2 | 1209 | client_p->name, |
212380e3 | 1210 | "255.255.255.255", |
b2f0da88 | 1211 | rb_errstr(status)); |
212380e3 AC |
1212 | ilog(L_SERVER, "Error connecting to %s[%s]: %s", |
1213 | client_p->name, client_p->sockhost, | |
b2f0da88 | 1214 | rb_errstr(status)); |
212380e3 AC |
1215 | } |
1216 | else | |
1217 | { | |
6c528b8e | 1218 | errstr = strerror(rb_get_sockerr(F)); |
212380e3 AC |
1219 | sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) ? L_NETWIDE : L_ALL, |
1220 | "Error connecting to %s[%s]: %s (%s)", | |
1221 | client_p->name, | |
212380e3 | 1222 | "255.255.255.255", |
b2f0da88 | 1223 | rb_errstr(status), errstr); |
212380e3 AC |
1224 | ilog(L_SERVER, "Error connecting to %s[%s]: %s (%s)", |
1225 | client_p->name, client_p->sockhost, | |
b2f0da88 | 1226 | rb_errstr(status), errstr); |
212380e3 AC |
1227 | } |
1228 | ||
b2f0da88 | 1229 | exit_client(client_p, client_p, &me, rb_errstr(status)); |
212380e3 AC |
1230 | return; |
1231 | } | |
1232 | ||
1233 | /* COMM_OK, so continue the connection procedure */ | |
1234 | /* Get the C/N lines */ | |
1235 | if((server_p = client_p->localClient->att_sconf) == NULL) | |
1236 | { | |
1237 | sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) ? L_NETWIDE : L_ALL, "Lost connect{} block for %s", | |
b3ebc7ab | 1238 | client_p->name); |
212380e3 AC |
1239 | exit_client(client_p, client_p, &me, "Lost connect{} block"); |
1240 | return; | |
1241 | } | |
1242 | ||
1243 | /* Next, send the initial handshake */ | |
1244 | SetHandshake(client_p); | |
1245 | ||
ff0cc1e6 | 1246 | /* the server may be linking based on certificate fingerprint now. --nenolod */ |
55abcbb2 | 1247 | sendto_one(client_p, "PASS %s TS %d :%s", |
ff0cc1e6 | 1248 | EmptyString(server_p->spasswd) ? "*" : server_p->spasswd, TS_CURRENT, me.id); |
212380e3 AC |
1249 | |
1250 | /* pass my info to the new server */ | |
1251 | send_capabilities(client_p, default_server_capabs | |
1252 | | (ServerConfCompressed(server_p) ? CAP_ZIP_SUPPORTED : 0) | |
1253 | | (ServerConfTb(server_p) ? CAP_TB : 0)); | |
1254 | ||
1255 | sendto_one(client_p, "SERVER %s 1 :%s%s", | |
1256 | me.name, | |
1257 | ConfigServerHide.hidden ? "(H) " : "", me.info); | |
1258 | ||
55abcbb2 | 1259 | /* |
212380e3 AC |
1260 | * If we've been marked dead because a send failed, just exit |
1261 | * here now and save everyone the trouble of us ever existing. | |
1262 | */ | |
1263 | if(IsAnyDead(client_p)) | |
1264 | { | |
1265 | sendto_realops_snomask(SNO_GENERAL, is_remote_connect(client_p) ? L_NETWIDE : L_ALL, | |
1266 | "%s went dead during handshake", client_p->name); | |
1267 | exit_client(client_p, client_p, &me, "Went dead during handshake"); | |
1268 | return; | |
1269 | } | |
1270 | ||
1271 | /* don't move to serv_list yet -- we haven't sent a burst! */ | |
1272 | ||
1273 | /* If we get here, we're ok, so lets start reading some data */ | |
6c528b8e | 1274 | read_packet(F, client_p); |
212380e3 | 1275 | } |