1 |
/* |
2 |
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
3 |
* |
4 |
* Copyright (c) 1997-2020 ircd-hybrid development team |
5 |
* |
6 |
* This program is free software; you can redistribute it and/or modify |
7 |
* it under the terms of the GNU General Public License as published by |
8 |
* the Free Software Foundation; either version 2 of the License, or |
9 |
* (at your option) any later version. |
10 |
* |
11 |
* This program is distributed in the hope that it will be useful, |
12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 |
* GNU General Public License for more details. |
15 |
* |
16 |
* You should have received a copy of the GNU General Public License |
17 |
* along with this program; if not, write to the Free Software |
18 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 |
19 |
* USA |
20 |
*/ |
21 |
|
22 |
/*! \file conf.c |
23 |
* \brief Configuration file functions. |
24 |
* \version $Id$ |
25 |
*/ |
26 |
|
27 |
#include "stdinc.h" |
28 |
#include "list.h" |
29 |
#include "ircd_defs.h" |
30 |
#include "parse.h" |
31 |
#include "conf.h" |
32 |
#include "conf_cluster.h" |
33 |
#include "conf_gecos.h" |
34 |
#include "conf_pseudo.h" |
35 |
#include "conf_resv.h" |
36 |
#include "conf_service.h" |
37 |
#include "conf_shared.h" |
38 |
#include "server.h" |
39 |
#include "channel.h" |
40 |
#include "client.h" |
41 |
#include "event.h" |
42 |
#include "irc_string.h" |
43 |
#include "s_bsd.h" |
44 |
#include "ircd.h" |
45 |
#include "listener.h" |
46 |
#include "hostmask.h" |
47 |
#include "modules.h" |
48 |
#include "numeric.h" |
49 |
#include "fdlist.h" |
50 |
#include "log.h" |
51 |
#include "send.h" |
52 |
#include "memory.h" |
53 |
#include "res.h" |
54 |
#include "user.h" |
55 |
#include "channel_mode.h" |
56 |
#include "misc.h" |
57 |
#include "conf_db.h" |
58 |
#include "conf_class.h" |
59 |
#include "motd.h" |
60 |
#include "ipcache.h" |
61 |
#include "isupport.h" |
62 |
#include "whowas.h" |
63 |
|
64 |
|
65 |
struct config_channel_entry ConfigChannel; |
66 |
struct config_serverhide_entry ConfigServerHide; |
67 |
struct config_general_entry ConfigGeneral; |
68 |
struct config_log_entry ConfigLog = { .use_logging = 1 }; |
69 |
struct config_serverinfo_entry ConfigServerInfo; |
70 |
struct config_admin_entry ConfigAdminInfo; |
71 |
struct conf_parser_context conf_parser_ctx; |
72 |
|
73 |
/* general conf items link list root, other than k lines etc. */ |
74 |
dlink_list connect_items; |
75 |
dlink_list operator_items; |
76 |
|
77 |
extern unsigned int lineno; |
78 |
extern char linebuf[]; |
79 |
extern char conffilebuf[IRCD_BUFSIZE]; |
80 |
extern int yyparse(); /* defined in y.tab.c */ |
81 |
|
82 |
|
83 |
/* conf_dns_callback() |
84 |
* |
85 |
* inputs - pointer to struct MaskItem |
86 |
* - pointer to DNSReply reply |
87 |
* output - none |
88 |
* side effects - called when resolver query finishes |
89 |
* if the query resulted in a successful search, hp will contain |
90 |
* a non-null pointer, otherwise hp will be null. |
91 |
* if successful save hp in the conf item it was called with |
92 |
*/ |
93 |
static void |
94 |
conf_dns_callback(void *vptr, const struct irc_ssaddr *addr, const char *name, size_t namelength) |
95 |
{ |
96 |
struct MaskItem *const conf = vptr; |
97 |
|
98 |
conf->dns_pending = false; |
99 |
|
100 |
if (addr) |
101 |
*conf->addr = *addr; |
102 |
else |
103 |
conf->dns_failed = true; |
104 |
} |
105 |
|
106 |
/* conf_resolve_host() |
107 |
* |
108 |
* start DNS lookups of all hostnames in the conf |
109 |
* line and convert an IP addresses in a.b.c.d number for to IP#s. |
110 |
*/ |
111 |
void |
112 |
conf_dns_lookup(struct MaskItem *conf) |
113 |
{ |
114 |
struct addrinfo hints, *res; |
115 |
|
116 |
/* |
117 |
* Do name lookup now on hostnames given and store the |
118 |
* ip numbers in conf structure. |
119 |
*/ |
120 |
memset(&hints, 0, sizeof(hints)); |
121 |
|
122 |
hints.ai_family = AF_UNSPEC; |
123 |
hints.ai_socktype = SOCK_STREAM; |
124 |
|
125 |
/* Get us ready for a bind() and don't bother doing dns lookup */ |
126 |
hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST; |
127 |
|
128 |
if (getaddrinfo(conf->host, NULL, &hints, &res)) |
129 |
{ |
130 |
/* |
131 |
* By this point conf->host possibly is not a numerical network address. Do a nameserver |
132 |
* lookup of the conf host. If the conf entry is currently doing a ns lookup do nothing. |
133 |
*/ |
134 |
if (conf->dns_pending == true) |
135 |
return; |
136 |
|
137 |
conf->dns_pending = true; |
138 |
|
139 |
if (conf->aftype == AF_INET) |
140 |
gethost_byname_type(conf_dns_callback, conf, conf->host, T_A); |
141 |
else |
142 |
gethost_byname_type(conf_dns_callback, conf, conf->host, T_AAAA); |
143 |
return; |
144 |
} |
145 |
|
146 |
assert(res); |
147 |
|
148 |
memcpy(conf->addr, res->ai_addr, res->ai_addrlen); |
149 |
conf->addr->ss_len = res->ai_addrlen; |
150 |
|
151 |
freeaddrinfo(res); |
152 |
} |
153 |
|
154 |
/* map_to_list() |
155 |
* |
156 |
* inputs - ConfType conf |
157 |
* output - pointer to dlink_list to use |
158 |
* side effects - none |
159 |
*/ |
160 |
static dlink_list * |
161 |
map_to_list(enum maskitem_type type) |
162 |
{ |
163 |
switch (type) |
164 |
{ |
165 |
case CONF_OPER: |
166 |
return &operator_items; |
167 |
break; |
168 |
case CONF_SERVER: |
169 |
return &connect_items; |
170 |
break; |
171 |
default: |
172 |
return NULL; |
173 |
} |
174 |
} |
175 |
|
176 |
struct MaskItem * |
177 |
conf_make(enum maskitem_type type) |
178 |
{ |
179 |
struct MaskItem *const conf = xcalloc(sizeof(*conf)); |
180 |
dlink_list *list = NULL; |
181 |
|
182 |
conf->type = type; |
183 |
conf->active = true; |
184 |
conf->aftype = AF_INET; |
185 |
|
186 |
if ((list = map_to_list(type))) |
187 |
dlinkAdd(conf, &conf->node, list); |
188 |
return conf; |
189 |
} |
190 |
|
191 |
void |
192 |
conf_free(struct MaskItem *conf) |
193 |
{ |
194 |
dlink_node *node = NULL, *node_next = NULL; |
195 |
dlink_list *list = NULL; |
196 |
|
197 |
if ((list = map_to_list(conf->type))) |
198 |
dlinkFindDelete(list, conf); |
199 |
|
200 |
xfree(conf->name); |
201 |
|
202 |
if (conf->dns_pending == true) |
203 |
delete_resolver_queries(conf); |
204 |
if (conf->passwd) |
205 |
memset(conf->passwd, 0, strlen(conf->passwd)); |
206 |
if (conf->spasswd) |
207 |
memset(conf->spasswd, 0, strlen(conf->spasswd)); |
208 |
|
209 |
conf->class = NULL; |
210 |
|
211 |
xfree(conf->passwd); |
212 |
xfree(conf->spasswd); |
213 |
xfree(conf->reason); |
214 |
xfree(conf->certfp); |
215 |
xfree(conf->whois); |
216 |
xfree(conf->user); |
217 |
xfree(conf->host); |
218 |
xfree(conf->addr); |
219 |
xfree(conf->bind); |
220 |
xfree(conf->cipher_list); |
221 |
|
222 |
DLINK_FOREACH_SAFE(node, node_next, conf->hub_list.head) |
223 |
{ |
224 |
xfree(node->data); |
225 |
dlinkDelete(node, &conf->hub_list); |
226 |
free_dlink_node(node); |
227 |
} |
228 |
|
229 |
DLINK_FOREACH_SAFE(node, node_next, conf->leaf_list.head) |
230 |
{ |
231 |
xfree(node->data); |
232 |
dlinkDelete(node, &conf->leaf_list); |
233 |
free_dlink_node(node); |
234 |
} |
235 |
|
236 |
xfree(conf); |
237 |
} |
238 |
|
239 |
/* attach_iline() |
240 |
* |
241 |
* inputs - client pointer |
242 |
* - conf pointer |
243 |
* output - |
244 |
* side effects - do actual attach |
245 |
*/ |
246 |
static int |
247 |
attach_iline(struct Client *client, struct MaskItem *conf) |
248 |
{ |
249 |
const struct ClassItem *const class = conf->class; |
250 |
bool a_limit_reached = false; |
251 |
|
252 |
struct ip_entry *ipcache = ipcache_record_find_or_add(&client->ip); |
253 |
++ipcache->count_local; |
254 |
AddFlag(client, FLAGS_IPHASH); |
255 |
|
256 |
if (class->max_total && class->ref_count >= class->max_total) |
257 |
a_limit_reached = true; |
258 |
else if (class->max_perip_local && ipcache->count_local > class->max_perip_local) |
259 |
a_limit_reached = true; |
260 |
else if (class->max_perip_global && |
261 |
(ipcache->count_local + ipcache->count_remote) > class->max_perip_global) |
262 |
a_limit_reached = true; |
263 |
|
264 |
if (a_limit_reached == true) |
265 |
{ |
266 |
if (!IsConfExemptLimits(conf)) |
267 |
return TOO_MANY; /* Already at maximum allowed */ |
268 |
|
269 |
sendto_one_notice(client, &me, ":*** Your connection class is full, " |
270 |
"but you have exceed_limit = yes;"); |
271 |
} |
272 |
|
273 |
return conf_attach(client, conf); |
274 |
} |
275 |
|
276 |
/* verify_access() |
277 |
* |
278 |
* inputs - pointer to client to verify |
279 |
* output - 0 if success -'ve if not |
280 |
* side effect - find the first (best) I line to attach. |
281 |
*/ |
282 |
static int |
283 |
verify_access(struct Client *client) |
284 |
{ |
285 |
struct MaskItem *conf; |
286 |
|
287 |
if (HasFlag(client, FLAGS_GOTID)) |
288 |
conf = find_address_conf(client->host, client->username, &client->ip, |
289 |
client->connection->password); |
290 |
else |
291 |
{ |
292 |
char non_ident[USERLEN + 1] = "~"; |
293 |
|
294 |
strlcpy(non_ident + 1, client->username, sizeof(non_ident) - 1); |
295 |
conf = find_address_conf(client->host, non_ident, &client->ip, |
296 |
client->connection->password); |
297 |
} |
298 |
|
299 |
if (conf == NULL) |
300 |
return NOT_AUTHORIZED; |
301 |
|
302 |
assert(IsConfClient(conf) || IsConfKill(conf)); |
303 |
|
304 |
if (IsConfKill(conf)) |
305 |
{ |
306 |
sendto_one_notice(client, &me, ":*** Banned: %s", conf->reason); |
307 |
return BANNED_CLIENT; |
308 |
} |
309 |
|
310 |
if (IsConfRedir(conf)) |
311 |
{ |
312 |
sendto_one_numeric(client, &me, RPL_REDIR, |
313 |
conf->name ? conf->name : "", |
314 |
conf->port); |
315 |
return NOT_AUTHORIZED; |
316 |
} |
317 |
|
318 |
/* Preserve x->host in x->realhost before it gets overwritten. */ |
319 |
strlcpy(client->realhost, client->host, sizeof(client->realhost)); |
320 |
|
321 |
if (IsConfDoSpoofIp(conf)) |
322 |
strlcpy(client->host, conf->name, sizeof(client->host)); |
323 |
|
324 |
return attach_iline(client, conf); |
325 |
} |
326 |
|
327 |
/* check_client() |
328 |
* |
329 |
* inputs - pointer to client |
330 |
* output - 0 = Success |
331 |
* NOT_AUTHORIZED (-1) = Access denied (no I line match) |
332 |
* IRCD_SOCKET_ERROR (-2) = Bad socket. |
333 |
* I_LINE_FULL (-3) = I-line is full |
334 |
* TOO_MANY (-4) = Too many connections from hostname |
335 |
* BANNED_CLIENT (-5) = K-lined |
336 |
* side effects - Ordinary client access check. |
337 |
* Look for conf lines which have the same |
338 |
* status as the flags passed. |
339 |
*/ |
340 |
bool |
341 |
conf_check_client(struct Client *client) |
342 |
{ |
343 |
int i; |
344 |
|
345 |
if ((i = verify_access(client))) |
346 |
ilog(LOG_TYPE_IRCD, "Access denied: %s[%s]", |
347 |
client->name, client->sockhost); |
348 |
|
349 |
switch (i) |
350 |
{ |
351 |
case TOO_MANY: |
352 |
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
353 |
"Too many on IP for %s (%s).", |
354 |
client_get_name(client, SHOW_IP), |
355 |
client->sockhost); |
356 |
ilog(LOG_TYPE_IRCD, "Too many connections on IP from %s.", |
357 |
client_get_name(client, SHOW_IP)); |
358 |
++ServerStats.is_ref; |
359 |
exit_client(client, "No more connections allowed on that IP"); |
360 |
break; |
361 |
|
362 |
case I_LINE_FULL: |
363 |
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
364 |
"auth {} block is full for %s (%s).", |
365 |
client_get_name(client, SHOW_IP), |
366 |
client->sockhost); |
367 |
ilog(LOG_TYPE_IRCD, "Too many connections from %s.", |
368 |
client_get_name(client, SHOW_IP)); |
369 |
++ServerStats.is_ref; |
370 |
exit_client(client, "No more connections allowed in your connection class"); |
371 |
break; |
372 |
|
373 |
case NOT_AUTHORIZED: |
374 |
sendto_realops_flags(UMODE_REJ, L_ALL, SEND_NOTICE, |
375 |
"Unauthorized client connection from %s.", |
376 |
client_get_name(client, SHOW_IP)); |
377 |
ilog(LOG_TYPE_IRCD, "Unauthorized client connection from %s.", |
378 |
client_get_name(client, SHOW_IP)); |
379 |
++ServerStats.is_ref; |
380 |
exit_client(client, "You are not authorized to use this server"); |
381 |
break; |
382 |
|
383 |
case BANNED_CLIENT: |
384 |
++ServerStats.is_ref; |
385 |
exit_client(client, "Banned"); |
386 |
break; |
387 |
|
388 |
case 0: |
389 |
default: |
390 |
break; |
391 |
} |
392 |
|
393 |
if (i < 0) |
394 |
return false; |
395 |
return true; |
396 |
} |
397 |
|
398 |
/*! \brief Disassociate configuration from the client. Also removes a class |
399 |
* from the list if marked for deleting. |
400 |
* \param client Client to operate on |
401 |
* \param type Type of conf to detach |
402 |
*/ |
403 |
void |
404 |
conf_detach(struct Client *client, enum maskitem_type type) |
405 |
{ |
406 |
dlink_node *node, *node_next; |
407 |
|
408 |
DLINK_FOREACH_SAFE(node, node_next, client->connection->confs.head) |
409 |
{ |
410 |
struct MaskItem *conf = node->data; |
411 |
|
412 |
assert(conf->type & (CONF_CLIENT | CONF_OPER | CONF_SERVER)); |
413 |
assert(conf->ref_count > 0); |
414 |
assert(conf->class->ref_count > 0); |
415 |
|
416 |
if (!(conf->type & type)) |
417 |
continue; |
418 |
|
419 |
dlinkDelete(node, &client->connection->confs); |
420 |
free_dlink_node(node); |
421 |
|
422 |
if (conf->type == CONF_CLIENT) |
423 |
class_ip_limit_remove(conf->class, &client->ip); |
424 |
|
425 |
if (--conf->class->ref_count == 0 && conf->class->active == false) |
426 |
{ |
427 |
class_free(conf->class); |
428 |
conf->class = NULL; |
429 |
} |
430 |
|
431 |
if (--conf->ref_count == 0 && conf->active == false) |
432 |
conf_free(conf); |
433 |
} |
434 |
} |
435 |
|
436 |
/*! \brief Associate a specific configuration entry to a *local* client (this |
437 |
* is the one which used in accepting the connection). Note, that this |
438 |
* automatically changes the attachment if there was an old one. |
439 |
* \param client Client to attach the conf to |
440 |
* \param conf Configuration record to attach |
441 |
*/ |
442 |
int |
443 |
conf_attach(struct Client *client, struct MaskItem *conf) |
444 |
{ |
445 |
if (dlinkFind(&client->connection->confs, conf)) |
446 |
return 1; |
447 |
|
448 |
if (conf->type == CONF_CLIENT) |
449 |
if (class_ip_limit_add(conf->class, &client->ip, IsConfExemptLimits(conf)) == true) |
450 |
return TOO_MANY; /* Already at maximum allowed */ |
451 |
|
452 |
conf->class->ref_count++; |
453 |
conf->ref_count++; |
454 |
|
455 |
dlinkAdd(conf, make_dlink_node(), &client->connection->confs); |
456 |
|
457 |
return 0; |
458 |
} |
459 |
|
460 |
/* find_conf_name() |
461 |
* |
462 |
* inputs - pointer to conf link list to search |
463 |
* - pointer to name to find |
464 |
* - int mask of type of conf to find |
465 |
* output - NULL or pointer to conf found |
466 |
* side effects - find a conf entry which matches the name |
467 |
* and has the given mask. |
468 |
*/ |
469 |
struct MaskItem * |
470 |
find_conf_name(dlink_list *list, const char *name, enum maskitem_type type) |
471 |
{ |
472 |
dlink_node *node = NULL; |
473 |
|
474 |
DLINK_FOREACH(node, list->head) |
475 |
{ |
476 |
struct MaskItem *conf = node->data; |
477 |
|
478 |
if (conf->type == type) |
479 |
{ |
480 |
if (conf->name && !irccmp(conf->name, name)) |
481 |
return conf; |
482 |
} |
483 |
} |
484 |
|
485 |
return NULL; |
486 |
} |
487 |
|
488 |
/*! \brief Find a connect {} conf that has a name that matches \a name. |
489 |
* \param name Name to match |
490 |
* \param compare Pointer to function to be used for string matching |
491 |
*/ |
492 |
struct MaskItem * |
493 |
connect_find(const char *name, int (*compare)(const char *, const char *)) |
494 |
{ |
495 |
dlink_node *node; |
496 |
|
497 |
DLINK_FOREACH(node, connect_items.head) |
498 |
{ |
499 |
struct MaskItem *conf = node->data; |
500 |
|
501 |
if (compare(name, conf->name) == 0) |
502 |
return conf; |
503 |
} |
504 |
|
505 |
return NULL; |
506 |
} |
507 |
|
508 |
/* find_exact_name_conf() |
509 |
* |
510 |
* inputs - type of link list to look in |
511 |
* - pointer to name string to find |
512 |
* - pointer to user |
513 |
* - pointer to host |
514 |
* output - NULL or pointer to found struct MaskItem |
515 |
* side effects - looks for an exact match on name field |
516 |
*/ |
517 |
struct MaskItem * |
518 |
operator_find(const struct Client *client, const char *name) |
519 |
{ |
520 |
dlink_node *node; |
521 |
|
522 |
DLINK_FOREACH(node, operator_items.head) |
523 |
{ |
524 |
struct MaskItem *conf = node->data; |
525 |
|
526 |
if (irccmp(conf->name, name) == 0) |
527 |
{ |
528 |
if (client == NULL) |
529 |
return conf; |
530 |
|
531 |
if (conf->class->max_total && |
532 |
conf->class->max_total <= conf->class->ref_count) |
533 |
continue; |
534 |
|
535 |
if (match(conf->user, client->username) == 0) |
536 |
{ |
537 |
switch (conf->htype) |
538 |
{ |
539 |
case HM_HOST: |
540 |
if (match(conf->host, client->realhost) == 0 || |
541 |
match(conf->host, client->sockhost) == 0 || match(conf->host, client->host) == 0) |
542 |
return conf; |
543 |
break; |
544 |
case HM_IPV6: |
545 |
case HM_IPV4: |
546 |
if (address_compare(&client->ip, conf->addr, false, false, conf->bits) == true) |
547 |
return conf; |
548 |
break; |
549 |
default: |
550 |
assert(0); |
551 |
} |
552 |
} |
553 |
} |
554 |
} |
555 |
|
556 |
return NULL; |
557 |
} |
558 |
|
559 |
/* conf_set_defaults() |
560 |
* |
561 |
* inputs - NONE |
562 |
* output - NONE |
563 |
* side effects - Set default values here. |
564 |
* This is called **PRIOR** to parsing the |
565 |
* configuration file. If you want to do some validation |
566 |
* of values later, put them in validate_conf(). |
567 |
*/ |
568 |
static void |
569 |
conf_set_defaults(void) |
570 |
{ |
571 |
/* |
572 |
* Verify init_class() ran, this should be an unnecessary check |
573 |
* but it's not much work. |
574 |
*/ |
575 |
assert(class_default == class_get_list()->tail->data); |
576 |
|
577 |
ConfigServerInfo.network_name = xstrdup(NETWORK_NAME_DEFAULT); |
578 |
ConfigServerInfo.network_description = xstrdup(NETWORK_DESCRIPTION_DEFAULT); |
579 |
ConfigServerInfo.default_max_clients = MAXCLIENTS_MAX; |
580 |
ConfigServerInfo.max_nick_length = 9; |
581 |
ConfigServerInfo.max_topic_length = 80; |
582 |
ConfigServerInfo.hub = 0; |
583 |
|
584 |
log_iterate(log_free); |
585 |
|
586 |
ConfigLog.use_logging = 1; |
587 |
|
588 |
ConfigChannel.enable_extbans = 0; |
589 |
ConfigChannel.disable_fake_channels = 0; |
590 |
ConfigChannel.invite_client_count = 10; |
591 |
ConfigChannel.invite_client_time = 300; |
592 |
ConfigChannel.invite_delay_channel = 5; |
593 |
ConfigChannel.invite_expire_time = 1800; |
594 |
ConfigChannel.knock_client_count = 1; |
595 |
ConfigChannel.knock_client_time = 300; |
596 |
ConfigChannel.knock_delay_channel = 60; |
597 |
ConfigChannel.max_channels = 25; |
598 |
ConfigChannel.max_invites = 20; |
599 |
ConfigChannel.max_bans = 100; |
600 |
ConfigChannel.max_bans_large = 500; |
601 |
ConfigChannel.default_join_flood_count = 18; |
602 |
ConfigChannel.default_join_flood_time = 6; |
603 |
|
604 |
ConfigServerHide.flatten_links = 0; |
605 |
ConfigServerHide.flatten_links_delay = 300; |
606 |
ConfigServerHide.hidden = 0; |
607 |
ConfigServerHide.hide_servers = 0; |
608 |
ConfigServerHide.hide_services = 0; |
609 |
ConfigServerHide.hidden_name = xstrdup(NETWORK_NAME_DEFAULT); |
610 |
ConfigServerHide.hide_server_ips = 0; |
611 |
ConfigServerHide.disable_remote_commands = 0; |
612 |
|
613 |
ConfigGeneral.away_count = 2; |
614 |
ConfigGeneral.away_time = 10; |
615 |
ConfigGeneral.max_monitor = 50; |
616 |
ConfigGeneral.whowas_history_length = 15000; |
617 |
ConfigGeneral.cycle_on_host_change = 1; |
618 |
ConfigGeneral.dline_min_cidr = 16; |
619 |
ConfigGeneral.dline_min_cidr6 = 48; |
620 |
ConfigGeneral.kline_min_cidr = 16; |
621 |
ConfigGeneral.kline_min_cidr6 = 48; |
622 |
ConfigGeneral.invisible_on_connect = 1; |
623 |
ConfigGeneral.disable_auth = 0; |
624 |
ConfigGeneral.kill_chase_time_limit = 90; |
625 |
ConfigGeneral.default_floodcount = 8; |
626 |
ConfigGeneral.default_floodtime = 1; |
627 |
ConfigGeneral.failed_oper_notice = 1; |
628 |
ConfigGeneral.dots_in_ident = 0; |
629 |
ConfigGeneral.min_nonwildcard = 4; |
630 |
ConfigGeneral.min_nonwildcard_simple = 3; |
631 |
ConfigGeneral.max_accept = 50; |
632 |
ConfigGeneral.anti_nick_flood = 0; |
633 |
ConfigGeneral.max_nick_time = 20; |
634 |
ConfigGeneral.max_nick_changes = 5; |
635 |
ConfigGeneral.anti_spam_exit_message_time = 0; |
636 |
ConfigGeneral.ts_warn_delta = 30; |
637 |
ConfigGeneral.ts_max_delta = 600; |
638 |
ConfigGeneral.warn_no_connect_block = 1; |
639 |
ConfigGeneral.stats_e_disabled = 0; |
640 |
ConfigGeneral.stats_i_oper_only = 1; /* 1 = masked */ |
641 |
ConfigGeneral.stats_k_oper_only = 1; /* 1 = masked */ |
642 |
ConfigGeneral.stats_o_oper_only = 1; |
643 |
ConfigGeneral.stats_m_oper_only = 1; |
644 |
ConfigGeneral.stats_P_oper_only = 0; |
645 |
ConfigGeneral.stats_u_oper_only = 0; |
646 |
ConfigGeneral.caller_id_wait = 60; |
647 |
ConfigGeneral.opers_bypass_callerid = 1; |
648 |
ConfigGeneral.pace_wait = 10; |
649 |
ConfigGeneral.pace_wait_simple = 1; |
650 |
ConfigGeneral.short_motd = 0; |
651 |
ConfigGeneral.ping_cookie = 0; |
652 |
ConfigGeneral.no_oper_flood = 0; |
653 |
ConfigGeneral.max_targets = MAX_TARGETS_DEFAULT; |
654 |
ConfigGeneral.oper_only_umodes = UMODE_DEBUG | UMODE_LOCOPS | UMODE_HIDDEN | UMODE_FARCONNECT | |
655 |
UMODE_EXTERNAL | UMODE_FLOOD | UMODE_NCHANGE | |
656 |
UMODE_SPY | UMODE_SKILL | UMODE_REJ | UMODE_CCONN; |
657 |
ConfigGeneral.oper_umodes = UMODE_FLOOD | UMODE_LOCOPS | UMODE_SERVNOTICE | UMODE_WALLOP; |
658 |
ConfigGeneral.throttle_count = 1; |
659 |
ConfigGeneral.throttle_time = 1; |
660 |
} |
661 |
|
662 |
static void |
663 |
conf_validate(void) |
664 |
{ |
665 |
if (EmptyString(ConfigServerInfo.network_name)) |
666 |
ConfigServerInfo.network_name = xstrdup(NETWORK_NAME_DEFAULT); |
667 |
|
668 |
if (EmptyString(ConfigServerInfo.network_description)) |
669 |
ConfigServerInfo.network_description = xstrdup(NETWORK_DESCRIPTION_DEFAULT); |
670 |
} |
671 |
|
672 |
/* conf_read() |
673 |
* |
674 |
* inputs - file descriptor pointing to config file to use |
675 |
* output - None |
676 |
* side effects - Read configuration file. |
677 |
*/ |
678 |
static void |
679 |
conf_read(FILE *file) |
680 |
{ |
681 |
lineno = 1; |
682 |
|
683 |
conf_set_defaults(); /* Set default values prior to conf parsing */ |
684 |
conf_parser_ctx.pass = 1; |
685 |
yyparse(); /* Pick up the classes first */ |
686 |
|
687 |
rewind(file); |
688 |
|
689 |
conf_parser_ctx.pass = 2; |
690 |
yyparse(); /* Load the values from the conf */ |
691 |
conf_validate(); /* Check to make sure some values are still okay. */ |
692 |
/* Some global values are also loaded here. */ |
693 |
whowas_trim(); /* Attempt to trim whowas list if necessary */ |
694 |
class_delete_marked(); /* Delete unused classes that are marked for deletion */ |
695 |
} |
696 |
|
697 |
/* conf_rehash() |
698 |
* |
699 |
* Actual REHASH service routine. Called with sig == 0 if it has been called |
700 |
* as a result of an operator issuing this command, else assume it has been |
701 |
* called as a result of the server receiving a HUP signal. |
702 |
*/ |
703 |
void |
704 |
conf_rehash(bool sig) |
705 |
{ |
706 |
if (sig == true) |
707 |
{ |
708 |
sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE, |
709 |
"Got signal SIGHUP, reloading configuration file(s)"); |
710 |
ilog(LOG_TYPE_IRCD, "Got signal SIGHUP, reloading configuration file(s)"); |
711 |
} |
712 |
|
713 |
restart_resolver(); |
714 |
|
715 |
/* don't close listeners until we know we can go ahead with the rehash */ |
716 |
|
717 |
conf_read_files(false); |
718 |
|
719 |
load_conf_modules(); |
720 |
check_conf_klines(); |
721 |
} |
722 |
|
723 |
/* conf_connect_allowed() |
724 |
* |
725 |
* inputs - pointer to inaddr |
726 |
* - int type ipv4 or ipv6 |
727 |
* output - BANNED or accepted |
728 |
* side effects - none |
729 |
*/ |
730 |
int |
731 |
conf_connect_allowed(struct irc_ssaddr *addr) |
732 |
{ |
733 |
const struct MaskItem *conf = find_dline_conf(addr); |
734 |
|
735 |
if (conf) |
736 |
{ |
737 |
/* DLINE exempt also gets you out of static limits/pacing... */ |
738 |
if (conf->type == CONF_EXEMPT) |
739 |
return 0; |
740 |
return BANNED_CLIENT; |
741 |
} |
742 |
|
743 |
struct ip_entry *ip_found = ipcache_record_find_or_add(addr); |
744 |
if ((event_base->time.sec_monotonic - ip_found->last_attempt) < ConfigGeneral.throttle_time) |
745 |
{ |
746 |
if (ip_found->connection_count >= ConfigGeneral.throttle_count) |
747 |
return TOO_FAST; |
748 |
|
749 |
++ip_found->connection_count; |
750 |
} |
751 |
else |
752 |
ip_found->connection_count = 1; |
753 |
|
754 |
ip_found->last_attempt = event_base->time.sec_monotonic; |
755 |
return 0; |
756 |
} |
757 |
|
758 |
/* cleanup_tklines() |
759 |
* |
760 |
* inputs - NONE |
761 |
* output - NONE |
762 |
* side effects - call function to expire temporary k/d lines |
763 |
* This is an event started off in ircd.c |
764 |
*/ |
765 |
void |
766 |
cleanup_tklines(void *unused) |
767 |
{ |
768 |
hostmask_expire_temporary(); |
769 |
gecos_expire(); |
770 |
resv_expire(); |
771 |
} |
772 |
|
773 |
/* |
774 |
* Input: A client to find the active operator {} name for. |
775 |
* Output: The nick!user@host{oper} of the oper. |
776 |
* "oper" is server name for remote opers |
777 |
* Side effects: None. |
778 |
*/ |
779 |
const char * |
780 |
get_oper_name(const struct Client *client) |
781 |
{ |
782 |
static char buffer[IRCD_BUFSIZE]; |
783 |
|
784 |
if (IsServer(client)) |
785 |
return client->name; |
786 |
|
787 |
if (MyConnect(client)) |
788 |
{ |
789 |
const dlink_node *const node = client->connection->confs.head; |
790 |
|
791 |
if (node) |
792 |
{ |
793 |
const struct MaskItem *const conf = node->data; |
794 |
|
795 |
if (conf->type == CONF_OPER) |
796 |
{ |
797 |
snprintf(buffer, sizeof(buffer), "%s!%s@%s{%s}", client->name, |
798 |
client->username, client->host, conf->name); |
799 |
return buffer; |
800 |
} |
801 |
} |
802 |
|
803 |
/* |
804 |
* Probably should assert here for now. If there is an oper out there |
805 |
* with no operator {} conf attached, it would be good for us to know... |
806 |
*/ |
807 |
assert(0); /* Oper without oper conf! */ |
808 |
} |
809 |
|
810 |
snprintf(buffer, sizeof(buffer), "%s!%s@%s{%s}", client->name, |
811 |
client->username, client->host, client->servptr->name); |
812 |
return buffer; |
813 |
} |
814 |
|
815 |
/* conf_clear() |
816 |
* |
817 |
* inputs - none |
818 |
* output - none |
819 |
* side effects - Clear out the old configuration |
820 |
*/ |
821 |
static void |
822 |
conf_clear(void) |
823 |
{ |
824 |
dlink_node *node = NULL, *node_next = NULL; |
825 |
dlink_list *free_items [] = { |
826 |
&connect_items, &operator_items, NULL |
827 |
}; |
828 |
|
829 |
dlink_list ** iterator = free_items; /* C is dumb */ |
830 |
|
831 |
/* We only need to free anything allocated by yyparse() here. |
832 |
* Resetting structs, etc, is taken care of by conf_set_defaults(). |
833 |
*/ |
834 |
|
835 |
for (; *iterator; iterator++) |
836 |
{ |
837 |
DLINK_FOREACH_SAFE(node, node_next, (*iterator)->head) |
838 |
{ |
839 |
struct MaskItem *conf = node->data; |
840 |
|
841 |
conf->active = false; |
842 |
dlinkDelete(&conf->node, *iterator); |
843 |
|
844 |
if (!conf->ref_count) |
845 |
conf_free(conf); |
846 |
} |
847 |
} |
848 |
|
849 |
/* |
850 |
* Don't delete the class table, rather mark all entries for deletion. |
851 |
* The table is cleaned up by class_delete_marked. - avalon |
852 |
*/ |
853 |
class_mark_for_deletion(); |
854 |
|
855 |
clear_out_address_conf(); |
856 |
|
857 |
modules_conf_clear(); /* Clear modules {} items */ |
858 |
|
859 |
motd_clear(); /* Clear motd {} items and re-cache default motd */ |
860 |
|
861 |
cluster_clear(); /* Clear cluster {} items */ |
862 |
|
863 |
gecos_clear(); /* Clear gecos {} items */ |
864 |
|
865 |
resv_clear(); /* Clear resv {} items */ |
866 |
|
867 |
service_clear(); /* Clear service {} items */ |
868 |
|
869 |
shared_clear(); /* Clear shared {} items */ |
870 |
|
871 |
pseudo_clear(); /* Clear pseudo {} items */ |
872 |
|
873 |
/* Clean out ConfigServerInfo */ |
874 |
xfree(ConfigServerInfo.description); |
875 |
ConfigServerInfo.description = NULL; |
876 |
xfree(ConfigServerInfo.network_name); |
877 |
ConfigServerInfo.network_name = NULL; |
878 |
xfree(ConfigServerInfo.network_description); |
879 |
ConfigServerInfo.network_description = NULL; |
880 |
xfree(ConfigServerInfo.rsa_private_key_file); |
881 |
ConfigServerInfo.rsa_private_key_file = NULL; |
882 |
xfree(ConfigServerInfo.tls_certificate_file); |
883 |
ConfigServerInfo.tls_certificate_file = NULL; |
884 |
xfree(ConfigServerInfo.tls_dh_param_file); |
885 |
ConfigServerInfo.tls_dh_param_file = NULL; |
886 |
xfree(ConfigServerInfo.tls_supported_groups); |
887 |
ConfigServerInfo.tls_supported_groups = NULL; |
888 |
xfree(ConfigServerInfo.tls_cipher_list); |
889 |
ConfigServerInfo.tls_cipher_list = NULL; |
890 |
xfree(ConfigServerInfo.tls_cipher_suites); |
891 |
ConfigServerInfo.tls_cipher_suites = NULL; |
892 |
xfree(ConfigServerInfo.tls_message_digest_algorithm); |
893 |
ConfigServerInfo.tls_message_digest_algorithm = NULL; |
894 |
|
895 |
/* Clean out ConfigAdminInfo */ |
896 |
xfree(ConfigAdminInfo.name); |
897 |
ConfigAdminInfo.name = NULL; |
898 |
xfree(ConfigAdminInfo.email); |
899 |
ConfigAdminInfo.email = NULL; |
900 |
xfree(ConfigAdminInfo.description); |
901 |
ConfigAdminInfo.description = NULL; |
902 |
|
903 |
/* Clean out ConfigServerHide */ |
904 |
xfree(ConfigServerHide.flatten_links_file); |
905 |
ConfigServerHide.flatten_links_file = NULL; |
906 |
xfree(ConfigServerHide.hidden_name); |
907 |
ConfigServerHide.hidden_name = NULL; |
908 |
|
909 |
/* Clean out listeners */ |
910 |
listener_close_marked(); |
911 |
} |
912 |
|
913 |
static void |
914 |
conf_handle_tls(bool cold) |
915 |
{ |
916 |
if (tls_new_credentials() == false) |
917 |
{ |
918 |
if (cold == true) |
919 |
{ |
920 |
ilog(LOG_TYPE_IRCD, "Error while initializing TLS"); |
921 |
exit(EXIT_FAILURE); |
922 |
} |
923 |
else |
924 |
{ |
925 |
/* Failed to load new settings/certs, old ones remain active */ |
926 |
sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE, |
927 |
"Error reloading TLS settings, check the ircd log"); // report_crypto_errors logs this |
928 |
} |
929 |
} |
930 |
} |
931 |
|
932 |
/* read_conf_files() |
933 |
* |
934 |
* inputs - cold start YES or NO |
935 |
* output - none |
936 |
* side effects - read all conf files needed, ircd.conf kline.conf etc. |
937 |
*/ |
938 |
void |
939 |
conf_read_files(bool cold) |
940 |
{ |
941 |
char buf[IRCD_BUFSIZE]; |
942 |
|
943 |
conf_parser_ctx.boot = cold; |
944 |
conf_parser_ctx.conf_file = fopen(ConfigGeneral.configfile, "r"); |
945 |
|
946 |
if (conf_parser_ctx.conf_file == NULL) |
947 |
{ |
948 |
if (cold == true) |
949 |
{ |
950 |
ilog(LOG_TYPE_IRCD, "Unable to read configuration file '%s': %s", |
951 |
ConfigGeneral.configfile, strerror(errno)); |
952 |
exit(EXIT_FAILURE); |
953 |
} |
954 |
else |
955 |
{ |
956 |
sendto_realops_flags(UMODE_SERVNOTICE, L_ADMIN, SEND_NOTICE, |
957 |
"Unable to read configuration file '%s': %s", |
958 |
ConfigGeneral.configfile, strerror(errno)); |
959 |
return; |
960 |
} |
961 |
} |
962 |
|
963 |
/* |
964 |
* We need to know the initial filename for the yyerror() to report |
965 |
* |
966 |
* FIXME: The full path is in conffilenamebuf first time since we |
967 |
* don't know anything else |
968 |
* |
969 |
* - Gozem 2002-07-21 |
970 |
*/ |
971 |
strlcpy(conffilebuf, ConfigGeneral.configfile, sizeof(conffilebuf)); |
972 |
|
973 |
if (cold == false) |
974 |
conf_clear(); |
975 |
|
976 |
conf_read(conf_parser_ctx.conf_file); |
977 |
fclose(conf_parser_ctx.conf_file); |
978 |
|
979 |
log_iterate(log_reopen); |
980 |
conf_handle_tls(cold); |
981 |
|
982 |
isupport_add("NICKLEN", NULL, ConfigServerInfo.max_nick_length); |
983 |
isupport_add("NETWORK", ConfigServerInfo.network_name, -1); |
984 |
|
985 |
snprintf(buf, sizeof(buf), "beI:%u", ConfigChannel.max_bans); |
986 |
isupport_add("MAXLIST", buf, -1); |
987 |
|
988 |
isupport_add("MAXTARGETS", NULL, ConfigGeneral.max_targets); |
989 |
isupport_add("CHANTYPES", "#", -1); |
990 |
|
991 |
snprintf(buf, sizeof(buf), "#:%u", ConfigChannel.max_channels); |
992 |
isupport_add("CHANLIMIT", buf, -1); |
993 |
|
994 |
isupport_add("CHANNELLEN", NULL, CHANNELLEN); |
995 |
isupport_add("TOPICLEN", NULL, ConfigServerInfo.max_topic_length); |
996 |
|
997 |
snprintf(buf, sizeof(buf), "%s", "beI,k,l,cimnprstuCKLMNORST"); |
998 |
isupport_add("CHANMODES", buf, -1); |
999 |
} |
1000 |
|
1001 |
/* conf_add_class_to_conf() |
1002 |
* |
1003 |
* inputs - pointer to config item |
1004 |
* output - NONE |
1005 |
* side effects - Add a class pointer to a conf |
1006 |
*/ |
1007 |
void |
1008 |
conf_add_class_to_conf(struct MaskItem *conf, const char *name) |
1009 |
{ |
1010 |
if (EmptyString(name) || (conf->class = class_find(name, true)) == NULL) |
1011 |
{ |
1012 |
conf->class = class_default; |
1013 |
|
1014 |
if (conf->type == CONF_CLIENT || conf->type == CONF_OPER) |
1015 |
sendto_realops_flags(UMODE_SERVNOTICE, L_ADMIN, SEND_NOTICE, |
1016 |
"Warning *** Defaulting to default class for %s@%s", |
1017 |
conf->user, conf->host); |
1018 |
else |
1019 |
sendto_realops_flags(UMODE_SERVNOTICE, L_ADMIN, SEND_NOTICE, |
1020 |
"Warning *** Defaulting to default class for %s", |
1021 |
conf->name); |
1022 |
} |
1023 |
} |
1024 |
|
1025 |
/* yyerror() |
1026 |
* |
1027 |
* inputs - message from parser |
1028 |
* output - NONE |
1029 |
* side effects - message to opers and log file entry is made |
1030 |
*/ |
1031 |
void |
1032 |
yyerror(const char *msg) |
1033 |
{ |
1034 |
if (conf_parser_ctx.pass != 1) |
1035 |
return; |
1036 |
|
1037 |
const char *p = stripws(linebuf); |
1038 |
sendto_realops_flags(UMODE_SERVNOTICE, L_ADMIN, SEND_NOTICE, |
1039 |
"\"%s\", line %u: %s: %s", |
1040 |
conffilebuf, lineno, msg, p); |
1041 |
ilog(LOG_TYPE_IRCD, "\"%s\", line %u: %s: %s", |
1042 |
conffilebuf, lineno, msg, p); |
1043 |
} |
1044 |
|
1045 |
void |
1046 |
conf_error_report(const char *msg) |
1047 |
{ |
1048 |
const char *p = stripws(linebuf); |
1049 |
sendto_realops_flags(UMODE_SERVNOTICE, L_ADMIN, SEND_NOTICE, |
1050 |
"\"%s\", line %u: %s: %s", |
1051 |
conffilebuf, lineno, msg, p); |
1052 |
ilog(LOG_TYPE_IRCD, "\"%s\", line %u: %s: %s", |
1053 |
conffilebuf, lineno, msg, p); |
1054 |
} |
1055 |
|
1056 |
/* |
1057 |
* valid_tkline() |
1058 |
* |
1059 |
* inputs - pointer to ascii string to check |
1060 |
* - whether the specified time is in seconds or minutes |
1061 |
* output - -1 not enough parameters |
1062 |
* - 0 if not an integer number, else the number |
1063 |
* side effects - none |
1064 |
* Originally written by Dianora (Diane, db@db.net) |
1065 |
*/ |
1066 |
uintmax_t |
1067 |
valid_tkline(const char *data, const int minutes) |
1068 |
{ |
1069 |
const unsigned char *p = (const unsigned char *)data; |
1070 |
unsigned char tmpch = '\0'; |
1071 |
uintmax_t result = 0; |
1072 |
|
1073 |
while ((tmpch = *p++)) |
1074 |
{ |
1075 |
if (!IsDigit(tmpch)) |
1076 |
return 0; |
1077 |
|
1078 |
result *= 10; |
1079 |
result += (tmpch & 0xF); |
1080 |
} |
1081 |
|
1082 |
/* |
1083 |
* In the degenerate case where oper does a /quote kline 0 user@host :reason |
1084 |
* i.e. they specifically use 0, I am going to return 1 instead as a return |
1085 |
* value of non-zero is used to flag it as a temporary kline |
1086 |
*/ |
1087 |
if (result == 0) |
1088 |
result = 1; |
1089 |
|
1090 |
/* |
1091 |
* If the incoming time is in seconds convert it to minutes for the purpose |
1092 |
* of this calculation |
1093 |
*/ |
1094 |
if (minutes == 0) |
1095 |
result = result / 60; |
1096 |
|
1097 |
if (result > MAX_TDKLINE_TIME) |
1098 |
result = MAX_TDKLINE_TIME; |
1099 |
|
1100 |
result = result * 60; /* Turn it into seconds */ |
1101 |
|
1102 |
return result; |
1103 |
} |
1104 |
|
1105 |
/* valid_wild_card_simple() |
1106 |
* |
1107 |
* inputs - data to check for sufficient non-wildcard characters |
1108 |
* outputs - 1 if valid, else 0 |
1109 |
* side effects - none |
1110 |
*/ |
1111 |
bool |
1112 |
valid_wild_card_simple(const char *data) |
1113 |
{ |
1114 |
const unsigned char *p = (const unsigned char *)data; |
1115 |
unsigned char tmpch = '\0'; |
1116 |
unsigned int nonwild = 0, wild = 0; |
1117 |
|
1118 |
while ((tmpch = *p++)) |
1119 |
{ |
1120 |
if (tmpch == '\\' && *p) |
1121 |
{ |
1122 |
++p; |
1123 |
if (++nonwild >= ConfigGeneral.min_nonwildcard_simple) |
1124 |
return true; |
1125 |
} |
1126 |
else if (!IsMWildChar(tmpch)) |
1127 |
{ |
1128 |
if (++nonwild >= ConfigGeneral.min_nonwildcard_simple) |
1129 |
return true; |
1130 |
} |
1131 |
else |
1132 |
++wild; |
1133 |
} |
1134 |
|
1135 |
return wild == 0; |
1136 |
} |
1137 |
|
1138 |
/* valid_wild_card() |
1139 |
* |
1140 |
* input - pointer to client |
1141 |
* - int flag, 0 for no warning oper 1 for warning oper |
1142 |
* - count of following varargs to check |
1143 |
* output - 0 if not valid, 1 if valid |
1144 |
* side effects - NOTICE is given to client if warn is 1 |
1145 |
*/ |
1146 |
bool |
1147 |
valid_wild_card(int count, ...) |
1148 |
{ |
1149 |
unsigned char tmpch = '\0'; |
1150 |
unsigned int nonwild = 0; |
1151 |
va_list args; |
1152 |
|
1153 |
/* |
1154 |
* Now we must check the user and host to make sure there |
1155 |
* are at least NONWILDCHARS non-wildcard characters in |
1156 |
* them, otherwise assume they are attempting to kline |
1157 |
* *@* or some variant of that. This code will also catch |
1158 |
* people attempting to kline *@*.tld, as long as NONWILDCHARS |
1159 |
* is greater than 3. In that case, there are only 3 non-wild |
1160 |
* characters (tld), so if NONWILDCHARS is 4, the kline will |
1161 |
* be disallowed. |
1162 |
* -wnder |
1163 |
*/ |
1164 |
|
1165 |
va_start(args, count); |
1166 |
|
1167 |
while (count--) |
1168 |
{ |
1169 |
const unsigned char *p = va_arg(args, const unsigned char *); |
1170 |
if (p == NULL) |
1171 |
continue; |
1172 |
|
1173 |
while ((tmpch = *p++)) |
1174 |
{ |
1175 |
if (!IsKWildChar(tmpch)) |
1176 |
{ |
1177 |
/* |
1178 |
* If we find enough non-wild characters, we can |
1179 |
* break - no point in searching further. |
1180 |
*/ |
1181 |
if (++nonwild >= ConfigGeneral.min_nonwildcard) |
1182 |
{ |
1183 |
va_end(args); |
1184 |
return true; |
1185 |
} |
1186 |
} |
1187 |
} |
1188 |
} |
1189 |
|
1190 |
va_end(args); |
1191 |
return false; |
1192 |
} |
1193 |
|
1194 |
/* XXX should this go into a separate file ? -Dianora */ |
1195 |
/* parse_aline |
1196 |
* |
1197 |
* input - pointer to cmd name being used |
1198 |
* - pointer to client using cmd |
1199 |
* - parc parameter count |
1200 |
* - parv[] list of parameters to parse |
1201 |
* - parse_flags bit map of things to test |
1202 |
* - pointer to user or string to parse into |
1203 |
* - pointer to host or NULL to parse into if non NULL |
1204 |
* - pointer to optional tkline time or NULL |
1205 |
* - pointer to target_server to parse into if non NULL |
1206 |
* - pointer to reason to parse into |
1207 |
* |
1208 |
* output - 1 if valid, 0 if not valid |
1209 |
* side effects - A generalised k/d/x etc. line parser, |
1210 |
* "ALINE [time] user@host|string [ON] target :reason" |
1211 |
* will parse returning a parsed user, host if |
1212 |
* h_p pointer is non NULL, string otherwise. |
1213 |
* if tkline_time pointer is non NULL a tk line will be set |
1214 |
* to non zero if found. |
1215 |
* if tkline_time pointer is NULL and tk line is found, |
1216 |
* error is reported. |
1217 |
* if target_server is NULL and an "ON" is found error |
1218 |
* is reported. |
1219 |
* if reason pointer is NULL ignore pointer, |
1220 |
* this allows use of parse_a_line in unkline etc. |
1221 |
* |
1222 |
* - Dianora |
1223 |
*/ |
1224 |
bool |
1225 |
parse_aline(const char *cmd, struct Client *client, int parc, char **parv, struct aline_ctx *aline) |
1226 |
{ |
1227 |
static char default_reason[] = CONF_NOREASON; |
1228 |
static char user[USERLEN * 2 + 1]; |
1229 |
static char host[HOSTLEN * 2 + 1]; |
1230 |
|
1231 |
++parv; |
1232 |
--parc; |
1233 |
|
1234 |
if (aline->add == true && (aline->duration = valid_tkline(*parv, TK_MINUTES))) |
1235 |
{ |
1236 |
++parv; |
1237 |
--parc; |
1238 |
} |
1239 |
|
1240 |
if (parc == 0) |
1241 |
{ |
1242 |
sendto_one_numeric(client, &me, ERR_NEEDMOREPARAMS, cmd); |
1243 |
return false; |
1244 |
} |
1245 |
|
1246 |
if (aline->simple_mask == true) |
1247 |
{ |
1248 |
aline->mask = *parv; |
1249 |
aline->user = NULL; |
1250 |
aline->host = NULL; |
1251 |
} |
1252 |
else |
1253 |
{ |
1254 |
struct split_nuh_item nuh; |
1255 |
|
1256 |
nuh.nuhmask = *parv; |
1257 |
nuh.nickptr = NULL; |
1258 |
nuh.userptr = user; |
1259 |
nuh.hostptr = host; |
1260 |
|
1261 |
nuh.nicksize = 0; |
1262 |
nuh.usersize = sizeof(user); |
1263 |
nuh.hostsize = sizeof(host); |
1264 |
|
1265 |
split_nuh(&nuh); |
1266 |
|
1267 |
aline->mask = NULL; |
1268 |
aline->user = user; |
1269 |
aline->host = host; |
1270 |
} |
1271 |
|
1272 |
++parv; |
1273 |
--parc; |
1274 |
|
1275 |
if (parc) |
1276 |
{ |
1277 |
if (irccmp(*parv, "ON") == 0) |
1278 |
{ |
1279 |
++parv; |
1280 |
--parc; |
1281 |
|
1282 |
if (!HasOFlag(client, OPER_FLAG_REMOTEBAN)) |
1283 |
{ |
1284 |
sendto_one_numeric(client, &me, ERR_NOPRIVS, "remoteban"); |
1285 |
return false; |
1286 |
} |
1287 |
|
1288 |
if (parc == 0 || EmptyString(*parv)) |
1289 |
{ |
1290 |
sendto_one_numeric(client, &me, ERR_NEEDMOREPARAMS, cmd); |
1291 |
return false; |
1292 |
} |
1293 |
|
1294 |
aline->server = *parv; |
1295 |
++parv; |
1296 |
--parc; |
1297 |
} |
1298 |
else |
1299 |
aline->server = NULL; |
1300 |
} |
1301 |
|
1302 |
if (aline->add == true) |
1303 |
{ |
1304 |
if (parc == 0 || EmptyString(*parv)) |
1305 |
aline->reason = default_reason; |
1306 |
else |
1307 |
aline->reason = *parv; |
1308 |
} |
1309 |
|
1310 |
return true; |
1311 |
} |
1312 |
|
1313 |
/* match_conf_password() |
1314 |
* |
1315 |
* inputs - pointer to given password |
1316 |
* - pointer to Conf |
1317 |
* output - 1 or 0 if match |
1318 |
* side effects - none |
1319 |
*/ |
1320 |
bool |
1321 |
match_conf_password(const char *password, const struct MaskItem *conf) |
1322 |
{ |
1323 |
const char *encr = NULL; |
1324 |
|
1325 |
if (EmptyString(password) || EmptyString(conf->passwd)) |
1326 |
return false; |
1327 |
|
1328 |
if (conf->flags & CONF_FLAGS_ENCRYPTED) |
1329 |
encr = crypt(password, conf->passwd); |
1330 |
else |
1331 |
encr = password; |
1332 |
|
1333 |
return encr && strcmp(encr, conf->passwd) == 0; |
1334 |
} |
1335 |
|
1336 |
/* |
1337 |
* split_nuh |
1338 |
* |
1339 |
* inputs - pointer to original mask (modified in place) |
1340 |
* - pointer to pointer where nick should go |
1341 |
* - pointer to pointer where user should go |
1342 |
* - pointer to pointer where host should go |
1343 |
* output - NONE |
1344 |
* side effects - mask is modified in place |
1345 |
* If nick pointer is NULL, ignore writing to it |
1346 |
* this allows us to use this function elsewhere. |
1347 |
* |
1348 |
* mask nick user host |
1349 |
* ---------------------- ------- ------- ------ |
1350 |
* Dianora!db@db.net Dianora db db.net |
1351 |
* Dianora Dianora * * |
1352 |
* db.net * * db.net |
1353 |
* OR if nick pointer is NULL |
1354 |
* Dianora - * Dianora |
1355 |
* Dianora! Dianora * * |
1356 |
* Dianora!@ Dianora * * |
1357 |
* Dianora!db Dianora db * |
1358 |
* Dianora!@db.net Dianora * db.net |
1359 |
* db@db.net * db db.net |
1360 |
* !@ * * * |
1361 |
* @ * * * |
1362 |
* ! * * * |
1363 |
*/ |
1364 |
void |
1365 |
split_nuh(struct split_nuh_item *const iptr) |
1366 |
{ |
1367 |
char *p = NULL, *q = NULL; |
1368 |
|
1369 |
if (iptr->nickptr) |
1370 |
strlcpy(iptr->nickptr, "*", iptr->nicksize); |
1371 |
|
1372 |
if (iptr->userptr) |
1373 |
strlcpy(iptr->userptr, "*", iptr->usersize); |
1374 |
|
1375 |
if (iptr->hostptr) |
1376 |
strlcpy(iptr->hostptr, "*", iptr->hostsize); |
1377 |
|
1378 |
if ((p = strchr(iptr->nuhmask, '!'))) |
1379 |
{ |
1380 |
*p = '\0'; |
1381 |
|
1382 |
if (iptr->nickptr && *iptr->nuhmask) |
1383 |
strlcpy(iptr->nickptr, iptr->nuhmask, iptr->nicksize); |
1384 |
|
1385 |
if ((q = strchr(++p, '@'))) |
1386 |
{ |
1387 |
*q++ = '\0'; |
1388 |
|
1389 |
if (*p) |
1390 |
strlcpy(iptr->userptr, p, iptr->usersize); |
1391 |
|
1392 |
if (*q) |
1393 |
strlcpy(iptr->hostptr, q, iptr->hostsize); |
1394 |
} |
1395 |
else |
1396 |
{ |
1397 |
if (*p) |
1398 |
strlcpy(iptr->userptr, p, iptr->usersize); |
1399 |
} |
1400 |
} |
1401 |
else |
1402 |
{ |
1403 |
/* No ! found so lets look for a user@host */ |
1404 |
if ((p = strchr(iptr->nuhmask, '@'))) |
1405 |
{ |
1406 |
/* if found a @ */ |
1407 |
*p++ = '\0'; |
1408 |
|
1409 |
if (*iptr->nuhmask) |
1410 |
strlcpy(iptr->userptr, iptr->nuhmask, iptr->usersize); |
1411 |
|
1412 |
if (*p) |
1413 |
strlcpy(iptr->hostptr, p, iptr->hostsize); |
1414 |
} |
1415 |
else |
1416 |
{ |
1417 |
/* No @ found */ |
1418 |
if (iptr->nickptr == NULL || strpbrk(iptr->nuhmask, ".:")) |
1419 |
strlcpy(iptr->hostptr, iptr->nuhmask, iptr->hostsize); |
1420 |
else |
1421 |
strlcpy(iptr->nickptr, iptr->nuhmask, iptr->nicksize); |
1422 |
} |
1423 |
} |
1424 |
} |