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1 | /* | |
2 | * charybdis: an advanced internet relay chat daemon (ircd). | |
3 | * hostmask.c: Code to efficiently find IP & hostmask based configs. | |
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 | * Copyright (C) 2005-2008 charybdis development team | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
23 | * USA | |
24 | * | |
25 | * $Id: hostmask.c 2757 2006-11-10 22:58:15Z jilles $ | |
26 | */ | |
27 | ||
28 | #include "stdinc.h" | |
29 | #include "ircd_defs.h" | |
30 | #include "s_conf.h" | |
31 | #include "hostmask.h" | |
32 | #include "numeric.h" | |
33 | #include "send.h" | |
34 | #include "irc_string.h" | |
35 | ||
36 | #ifdef IPV6 | |
37 | static unsigned long hash_ipv6(struct sockaddr *, int); | |
38 | #endif | |
39 | static unsigned long hash_ipv4(struct sockaddr *, int); | |
40 | ||
41 | ||
42 | /* int parse_netmask(const char *, struct irc_sockaddr_storage *, int *); | |
43 | * Input: A hostmask, or an IPV4/6 address. | |
44 | * Output: An integer describing whether it is an IPV4, IPV6 address or a | |
45 | * hostmask, an address(if it is an IP mask), | |
46 | * a bitlength(if it is IP mask). | |
47 | * Side effects: None | |
48 | */ | |
49 | int | |
50 | parse_netmask(const char *text, struct sockaddr *naddr, int *nb) | |
51 | { | |
52 | char *ip = LOCAL_COPY(text); | |
53 | char *ptr; | |
54 | struct irc_sockaddr_storage *addr, xaddr; | |
55 | int *b, xb; | |
56 | if(nb == NULL) | |
57 | b = &xb; | |
58 | else | |
59 | b = nb; | |
60 | ||
61 | if(naddr == NULL) | |
62 | addr = (struct irc_sockaddr_storage *)&xaddr; | |
63 | else | |
64 | addr = (struct irc_sockaddr_storage *)naddr; | |
65 | ||
66 | #ifdef IPV6 | |
67 | if(strchr(ip, ':')) | |
68 | { | |
69 | if((ptr = strchr(ip, '/'))) | |
70 | { | |
71 | *ptr = '\0'; | |
72 | ptr++; | |
73 | *b = atoi(ptr); | |
74 | if(*b > 128) | |
75 | *b = 128; | |
76 | } else | |
77 | *b = 128; | |
78 | if(inetpton_sock(ip, (struct sockaddr *)addr) > 0) | |
79 | return HM_IPV6; | |
80 | else | |
81 | return HM_HOST; | |
82 | } else | |
83 | #endif | |
84 | if(strchr(text, '.')) | |
85 | { | |
86 | if((ptr = strchr(ip, '/'))) | |
87 | { | |
88 | *ptr = '\0'; | |
89 | ptr++; | |
90 | *b = atoi(ptr); | |
91 | if(*b > 32) | |
92 | *b = 32; | |
93 | } else | |
94 | *b = 32; | |
95 | if(inetpton_sock(ip, (struct sockaddr *)addr) > 0) | |
96 | return HM_IPV4; | |
97 | else | |
98 | return HM_HOST; | |
99 | } | |
100 | return HM_HOST; | |
101 | } | |
102 | ||
103 | /* Hashtable stuff...now external as its used in m_stats.c */ | |
104 | struct AddressRec *atable[ATABLE_SIZE]; | |
105 | ||
106 | void | |
107 | init_host_hash(void) | |
108 | { | |
109 | memset(&atable, 0, sizeof(atable)); | |
110 | } | |
111 | ||
112 | /* unsigned long hash_ipv4(struct irc_sockaddr_storage*) | |
113 | * Input: An IP address. | |
114 | * Output: A hash value of the IP address. | |
115 | * Side effects: None | |
116 | */ | |
117 | static unsigned long | |
118 | hash_ipv4(struct sockaddr *saddr, int bits) | |
119 | { | |
120 | struct sockaddr_in *addr = (struct sockaddr_in *) saddr; | |
121 | ||
122 | if(bits != 0) | |
123 | { | |
124 | unsigned long av = ntohl(addr->sin_addr.s_addr) & ~((1 << (32 - bits)) - 1); | |
125 | return (av ^ (av >> 12) ^ (av >> 24)) & (ATABLE_SIZE - 1); | |
126 | } | |
127 | ||
128 | return 0; | |
129 | } | |
130 | ||
131 | /* unsigned long hash_ipv6(struct irc_sockaddr_storage*) | |
132 | * Input: An IP address. | |
133 | * Output: A hash value of the IP address. | |
134 | * Side effects: None | |
135 | */ | |
136 | #ifdef IPV6 | |
137 | static unsigned long | |
138 | hash_ipv6(struct sockaddr *saddr, int bits) | |
139 | { | |
140 | struct sockaddr_in6 *addr = (struct sockaddr_in6 *) saddr; | |
141 | unsigned long v = 0, n; | |
142 | for (n = 0; n < 16; n++) | |
143 | { | |
144 | if(bits >= 8) | |
145 | { | |
146 | v ^= addr->sin6_addr.s6_addr[n]; | |
147 | bits -= 8; | |
148 | } | |
149 | else if(bits) | |
150 | { | |
151 | v ^= addr->sin6_addr.s6_addr[n] & ~((1 << (8 - bits)) - 1); | |
152 | return v & (ATABLE_SIZE - 1); | |
153 | } | |
154 | else | |
155 | return v & (ATABLE_SIZE - 1); | |
156 | } | |
157 | return v & (ATABLE_SIZE - 1); | |
158 | } | |
159 | #endif | |
160 | ||
161 | /* int hash_text(const char *start) | |
162 | * Input: The start of the text to hash. | |
163 | * Output: The hash of the string between 1 and (TH_MAX-1) | |
164 | * Side-effects: None. | |
165 | */ | |
166 | static int | |
167 | hash_text(const char *start) | |
168 | { | |
169 | const char *p = start; | |
170 | unsigned long h = 0; | |
171 | ||
172 | while(*p) | |
173 | { | |
174 | h = (h << 4) - (h + (unsigned char) ToLower(*p++)); | |
175 | } | |
176 | ||
177 | return (h & (ATABLE_SIZE - 1)); | |
178 | } | |
179 | ||
180 | /* unsigned long get_hash_mask(const char *) | |
181 | * Input: The text to hash. | |
182 | * Output: The hash of the string right of the first '.' past the last | |
183 | * wildcard in the string. | |
184 | * Side-effects: None. | |
185 | */ | |
186 | static unsigned long | |
187 | get_mask_hash(const char *text) | |
188 | { | |
189 | const char *hp = "", *p; | |
190 | ||
191 | for (p = text + strlen(text) - 1; p >= text; p--) | |
192 | if(*p == '*' || *p == '?') | |
193 | return hash_text(hp); | |
194 | else if(*p == '.') | |
195 | hp = p + 1; | |
196 | return hash_text(text); | |
197 | } | |
198 | ||
199 | /* struct ConfItem* find_conf_by_address(const char*, struct irc_sockaddr_storage*, | |
200 | * int type, int fam, const char *username) | |
201 | * Input: The hostname, the address, the type of mask to find, the address | |
202 | * family, the username. | |
203 | * Output: The matching value with the highest precedence. | |
204 | * Side-effects: None | |
205 | * Note: Setting bit 0 of the type means that the username is ignored. | |
206 | */ | |
207 | struct ConfItem * | |
208 | find_conf_by_address(const char *name, const char *sockhost, | |
209 | const char *orighost, | |
210 | struct sockaddr *addr, int type, int fam, | |
211 | const char *username) | |
212 | { | |
213 | unsigned long hprecv = 0; | |
214 | struct ConfItem *hprec = NULL; | |
215 | struct AddressRec *arec; | |
216 | int b; | |
217 | ||
218 | if(username == NULL) | |
219 | username = ""; | |
220 | ||
221 | if(addr) | |
222 | { | |
223 | /* Check for IPV6 matches... */ | |
224 | #ifdef IPV6 | |
225 | if(fam == AF_INET6) | |
226 | { | |
227 | ||
228 | for (b = 128; b >= 0; b -= 16) | |
229 | { | |
230 | for (arec = atable[hash_ipv6(addr, b)]; arec; arec = arec->next) | |
231 | if(arec->type == (type & ~0x1) && | |
232 | arec->masktype == HM_IPV6 && | |
233 | comp_with_mask_sock(addr, (struct sockaddr *)&arec->Mask.ipa.addr, | |
234 | arec->Mask.ipa.bits) && (type & 0x1 | |
235 | || | |
236 | match(arec-> | |
237 | username, | |
238 | username)) | |
239 | && arec->precedence > hprecv) | |
240 | { | |
241 | hprecv = arec->precedence; | |
242 | hprec = arec->aconf; | |
243 | } | |
244 | } | |
245 | } | |
246 | else | |
247 | #endif | |
248 | if(fam == AF_INET) | |
249 | { | |
250 | for (b = 32; b >= 0; b -= 8) | |
251 | { | |
252 | for (arec = atable[hash_ipv4(addr, b)]; arec; arec = arec->next) | |
253 | if(arec->type == (type & ~0x1) && | |
254 | arec->masktype == HM_IPV4 && | |
255 | arec->precedence > hprecv && | |
256 | comp_with_mask_sock(addr, (struct sockaddr *)&arec->Mask.ipa.addr, | |
257 | arec->Mask.ipa.bits) && | |
258 | (type & 0x1 || match(arec->username, username))) | |
259 | { | |
260 | hprecv = arec->precedence; | |
261 | hprec = arec->aconf; | |
262 | } | |
263 | } | |
264 | } | |
265 | } | |
266 | ||
267 | if(orighost != NULL) | |
268 | { | |
269 | const char *p; | |
270 | ||
271 | for (p = orighost; p != NULL;) | |
272 | { | |
273 | for (arec = atable[hash_text(p)]; arec; arec = arec->next) | |
274 | ||
275 | if((arec->type == (type & ~0x1)) && | |
276 | (arec->masktype == HM_HOST) && | |
277 | arec->precedence > hprecv && | |
278 | match(arec->Mask.hostname, orighost) && | |
279 | (type & 0x1 || match(arec->username, username))) | |
280 | { | |
281 | hprecv = arec->precedence; | |
282 | hprec = arec->aconf; | |
283 | } | |
284 | p = strchr(p, '.'); | |
285 | if(p != NULL) | |
286 | p++; | |
287 | else | |
288 | break; | |
289 | } | |
290 | for (arec = atable[0]; arec; arec = arec->next) | |
291 | { | |
292 | if(arec->type == (type & ~0x1) && | |
293 | arec->masktype == HM_HOST && | |
294 | arec->precedence > hprecv && | |
295 | (match(arec->Mask.hostname, orighost) || | |
296 | (sockhost && match(arec->Mask.hostname, sockhost))) && | |
297 | (type & 0x1 || match(arec->username, username))) | |
298 | { | |
299 | hprecv = arec->precedence; | |
300 | hprec = arec->aconf; | |
301 | } | |
302 | } | |
303 | } | |
304 | ||
305 | if(name != NULL) | |
306 | { | |
307 | const char *p; | |
308 | /* And yes - we have to check p after strchr and p after increment for | |
309 | * NULL -kre */ | |
310 | for (p = name; p != NULL;) | |
311 | { | |
312 | for (arec = atable[hash_text(p)]; arec; arec = arec->next) | |
313 | if((arec->type == (type & ~0x1)) && | |
314 | (arec->masktype == HM_HOST) && | |
315 | arec->precedence > hprecv && | |
316 | match(arec->Mask.hostname, name) && | |
317 | (type & 0x1 || match(arec->username, username))) | |
318 | { | |
319 | hprecv = arec->precedence; | |
320 | hprec = arec->aconf; | |
321 | } | |
322 | p = strchr(p, '.'); | |
323 | if(p != NULL) | |
324 | p++; | |
325 | else | |
326 | break; | |
327 | } | |
328 | for (arec = atable[0]; arec; arec = arec->next) | |
329 | { | |
330 | if(arec->type == (type & ~0x1) && | |
331 | arec->masktype == HM_HOST && | |
332 | arec->precedence > hprecv && | |
333 | (match(arec->Mask.hostname, name) || | |
334 | (sockhost && match(arec->Mask.hostname, sockhost))) && | |
335 | (type & 0x1 || match(arec->username, username))) | |
336 | { | |
337 | hprecv = arec->precedence; | |
338 | hprec = arec->aconf; | |
339 | } | |
340 | } | |
341 | } | |
342 | return hprec; | |
343 | } | |
344 | ||
345 | /* struct ConfItem* find_address_conf(const char*, const char*, | |
346 | * struct irc_sockaddr_storage*, int); | |
347 | * Input: The hostname, username, address, address family. | |
348 | * Output: The applicable ConfItem. | |
349 | * Side-effects: None | |
350 | */ | |
351 | struct ConfItem * | |
352 | find_address_conf(const char *host, const char *sockhost, const char *user, | |
353 | const char *notildeuser, struct sockaddr *ip, int aftype) | |
354 | { | |
355 | struct ConfItem *iconf, *kconf; | |
356 | const char *vuser; | |
357 | ||
358 | /* Find the best I-line... If none, return NULL -A1kmm */ | |
359 | if(!(iconf = find_conf_by_address(host, sockhost, NULL, ip, CONF_CLIENT, aftype, user))) | |
360 | return NULL; | |
361 | /* Find what their visible username will be. | |
362 | * Note that the username without tilde may contain one char more. | |
363 | * -- jilles */ | |
364 | vuser = IsNoTilde(iconf) ? notildeuser : user; | |
365 | ||
366 | /* If they are exempt from K-lines, return the best I-line. -A1kmm */ | |
367 | if(IsConfExemptKline(iconf)) | |
368 | return iconf; | |
369 | ||
370 | /* Find the best K-line... -A1kmm */ | |
371 | kconf = find_conf_by_address(host, sockhost, NULL, ip, CONF_KILL, aftype, user); | |
372 | ||
373 | /* If they are K-lined, return the K-line */ | |
374 | if(kconf) | |
375 | return kconf; | |
376 | ||
377 | /* if theres a spoof, check it against klines.. */ | |
378 | if(IsConfDoSpoofIp(iconf)) | |
379 | { | |
380 | char *p = strchr(iconf->name, '@'); | |
381 | ||
382 | /* note, we dont need to pass sockhost here, as its | |
383 | * guaranteed to not match by whats above.. --anfl | |
384 | */ | |
385 | if(p) | |
386 | { | |
387 | *p = '\0'; | |
388 | kconf = find_conf_by_address(p+1, NULL, NULL, ip, CONF_KILL, aftype, iconf->name); | |
389 | *p = '@'; | |
390 | } | |
391 | else | |
392 | kconf = find_conf_by_address(iconf->name, NULL, NULL, ip, CONF_KILL, aftype, vuser); | |
393 | ||
394 | if(kconf) | |
395 | return kconf; | |
396 | } | |
397 | ||
398 | /* if no_tilde, check the username without tilde against klines too | |
399 | * -- jilles */ | |
400 | if(user != vuser) | |
401 | { | |
402 | kconf = find_conf_by_address(host, sockhost, NULL, ip, CONF_KILL, aftype, vuser); | |
403 | if(kconf) | |
404 | return kconf; | |
405 | } | |
406 | ||
407 | /* hunt for a gline */ | |
408 | if(ConfigFileEntry.glines) | |
409 | { | |
410 | kconf = find_conf_by_address(host, sockhost, NULL, ip, CONF_GLINE, aftype, user); | |
411 | ||
412 | if((kconf != NULL) && !IsConfExemptGline(iconf)) | |
413 | return kconf; | |
414 | } | |
415 | ||
416 | return iconf; | |
417 | } | |
418 | ||
419 | /* struct ConfItem* find_dline(struct irc_sockaddr_storage*, int) | |
420 | * Input: An address, an address family. | |
421 | * Output: The best matching D-line or exempt line. | |
422 | * Side effects: None. | |
423 | */ | |
424 | struct ConfItem * | |
425 | find_dline(struct sockaddr *addr, int aftype) | |
426 | { | |
427 | struct ConfItem *eline; | |
428 | eline = find_conf_by_address(NULL, NULL, NULL, addr, CONF_EXEMPTDLINE | 1, aftype, NULL); | |
429 | if(eline) | |
430 | return eline; | |
431 | return find_conf_by_address(NULL, NULL, NULL, addr, CONF_DLINE | 1, aftype, NULL); | |
432 | } | |
433 | ||
434 | /* void find_exact_conf_by_address(const char*, int, const char *) | |
435 | * Input: | |
436 | * Output: ConfItem if found | |
437 | * Side-effects: None | |
438 | */ | |
439 | struct ConfItem * | |
440 | find_exact_conf_by_address(const char *address, int type, const char *username) | |
441 | { | |
442 | int masktype, bits; | |
443 | unsigned long hv; | |
444 | struct AddressRec *arec; | |
445 | struct irc_sockaddr_storage addr; | |
446 | ||
447 | if(address == NULL) | |
448 | address = "/NOMATCH!/"; | |
449 | arec = MyMalloc(sizeof(struct AddressRec)); | |
450 | masktype = parse_netmask(address, (struct sockaddr *)&addr, &bits); | |
451 | #ifdef IPV6 | |
452 | if(masktype == HM_IPV6) | |
453 | { | |
454 | /* We have to do this, since we do not re-hash for every bit -A1kmm. */ | |
455 | hv = hash_ipv6((struct sockaddr *)&addr, bits - bits % 16); | |
456 | } | |
457 | else | |
458 | #endif | |
459 | if(masktype == HM_IPV4) | |
460 | { | |
461 | /* We have to do this, since we do not re-hash for every bit -A1kmm. */ | |
462 | hv = hash_ipv4((struct sockaddr *)&addr, bits - bits % 8); | |
463 | } | |
464 | else | |
465 | { | |
466 | hv = get_mask_hash(address); | |
467 | } | |
468 | for (arec = atable[hv]; arec; arec = arec->next) | |
469 | { | |
470 | if (arec->type == type && | |
471 | arec->masktype == masktype && | |
472 | (arec->username == NULL || username == NULL ? arec->username == username : !irccmp(arec->username, username))) | |
473 | { | |
474 | if (masktype == HM_HOST) | |
475 | { | |
476 | if (!irccmp(arec->Mask.hostname, address)) | |
477 | return arec->aconf; | |
478 | } | |
479 | else | |
480 | { | |
481 | if (arec->Mask.ipa.bits == bits && | |
482 | comp_with_mask_sock((struct sockaddr *)&arec->Mask.ipa.addr, (struct sockaddr *)&addr, bits)) | |
483 | return arec->aconf; | |
484 | } | |
485 | } | |
486 | } | |
487 | return NULL; | |
488 | } | |
489 | ||
490 | /* void add_conf_by_address(const char*, int, const char *, | |
491 | * struct ConfItem *aconf) | |
492 | * Input: | |
493 | * Output: None | |
494 | * Side-effects: Adds this entry to the hash table. | |
495 | */ | |
496 | void | |
497 | add_conf_by_address(const char *address, int type, const char *username, struct ConfItem *aconf) | |
498 | { | |
499 | static unsigned long prec_value = 0xFFFFFFFF; | |
500 | int masktype, bits; | |
501 | unsigned long hv; | |
502 | struct AddressRec *arec; | |
503 | ||
504 | if(address == NULL) | |
505 | address = "/NOMATCH!/"; | |
506 | arec = MyMalloc(sizeof(struct AddressRec)); | |
507 | masktype = parse_netmask(address, (struct sockaddr *)&arec->Mask.ipa.addr, &bits); | |
508 | arec->Mask.ipa.bits = bits; | |
509 | arec->masktype = masktype; | |
510 | #ifdef IPV6 | |
511 | if(masktype == HM_IPV6) | |
512 | { | |
513 | /* We have to do this, since we do not re-hash for every bit -A1kmm. */ | |
514 | bits -= bits % 16; | |
515 | arec->next = atable[(hv = hash_ipv6((struct sockaddr *)&arec->Mask.ipa.addr, bits))]; | |
516 | atable[hv] = arec; | |
517 | } | |
518 | else | |
519 | #endif | |
520 | if(masktype == HM_IPV4) | |
521 | { | |
522 | /* We have to do this, since we do not re-hash for every bit -A1kmm. */ | |
523 | bits -= bits % 8; | |
524 | arec->next = atable[(hv = hash_ipv4((struct sockaddr *)&arec->Mask.ipa.addr, bits))]; | |
525 | atable[hv] = arec; | |
526 | } | |
527 | else | |
528 | { | |
529 | arec->Mask.hostname = address; | |
530 | arec->next = atable[(hv = get_mask_hash(address))]; | |
531 | atable[hv] = arec; | |
532 | } | |
533 | arec->username = username; | |
534 | arec->aconf = aconf; | |
535 | arec->precedence = prec_value--; | |
536 | arec->type = type; | |
537 | } | |
538 | ||
539 | /* void delete_one_address(const char*, struct ConfItem*) | |
540 | * Input: An address string, the associated ConfItem. | |
541 | * Output: None | |
542 | * Side effects: Deletes an address record. Frees the ConfItem if there | |
543 | * is nothing referencing it, sets it as illegal otherwise. | |
544 | */ | |
545 | void | |
546 | delete_one_address_conf(const char *address, struct ConfItem *aconf) | |
547 | { | |
548 | int masktype, bits; | |
549 | unsigned long hv; | |
550 | struct AddressRec *arec, *arecl = NULL; | |
551 | struct irc_sockaddr_storage addr; | |
552 | masktype = parse_netmask(address, (struct sockaddr *)&addr, &bits); | |
553 | #ifdef IPV6 | |
554 | if(masktype == HM_IPV6) | |
555 | { | |
556 | /* We have to do this, since we do not re-hash for every bit -A1kmm. */ | |
557 | bits -= bits % 16; | |
558 | hv = hash_ipv6((struct sockaddr *)&addr, bits); | |
559 | } | |
560 | else | |
561 | #endif | |
562 | if(masktype == HM_IPV4) | |
563 | { | |
564 | /* We have to do this, since we do not re-hash for every bit -A1kmm. */ | |
565 | bits -= bits % 8; | |
566 | hv = hash_ipv4((struct sockaddr *)&addr, bits); | |
567 | } | |
568 | else | |
569 | hv = get_mask_hash(address); | |
570 | for (arec = atable[hv]; arec; arec = arec->next) | |
571 | { | |
572 | if(arec->aconf == aconf) | |
573 | { | |
574 | if(arecl) | |
575 | arecl->next = arec->next; | |
576 | else | |
577 | atable[hv] = arec->next; | |
578 | aconf->status |= CONF_ILLEGAL; | |
579 | if(!aconf->clients) | |
580 | free_conf(aconf); | |
581 | rb_free(arec); | |
582 | return; | |
583 | } | |
584 | arecl = arec; | |
585 | } | |
586 | } | |
587 | ||
588 | /* void clear_out_address_conf(void) | |
589 | * Input: None | |
590 | * Output: None | |
591 | * Side effects: Clears out all address records in the hash table, | |
592 | * frees them, and frees the ConfItems if nothing references | |
593 | * them, otherwise sets them as illegal. | |
594 | */ | |
595 | void | |
596 | clear_out_address_conf(void) | |
597 | { | |
598 | int i; | |
599 | struct AddressRec **store_next; | |
600 | struct AddressRec *arec, *arecn; | |
601 | ||
602 | for (i = 0; i < ATABLE_SIZE; i++) | |
603 | { | |
604 | store_next = &atable[i]; | |
605 | for (arec = atable[i]; arec; arec = arecn) | |
606 | { | |
607 | arecn = arec->next; | |
608 | /* We keep the temporary K-lines and destroy the | |
609 | * permanent ones, just to be confusing :) -A1kmm */ | |
610 | if(arec->aconf->flags & CONF_FLAGS_TEMPORARY || | |
611 | (arec->type != CONF_CLIENT && arec->type != CONF_EXEMPTDLINE)) | |
612 | { | |
613 | *store_next = arec; | |
614 | store_next = &arec->next; | |
615 | } | |
616 | else | |
617 | { | |
618 | arec->aconf->status |= CONF_ILLEGAL; | |
619 | if(!arec->aconf->clients) | |
620 | free_conf(arec->aconf); | |
621 | rb_free(arec); | |
622 | } | |
623 | } | |
624 | *store_next = NULL; | |
625 | } | |
626 | } | |
627 | ||
628 | void | |
629 | clear_out_address_conf_bans(void) | |
630 | { | |
631 | int i; | |
632 | struct AddressRec **store_next; | |
633 | struct AddressRec *arec, *arecn; | |
634 | ||
635 | for (i = 0; i < ATABLE_SIZE; i++) | |
636 | { | |
637 | store_next = &atable[i]; | |
638 | for (arec = atable[i]; arec; arec = arecn) | |
639 | { | |
640 | arecn = arec->next; | |
641 | /* We keep the temporary K-lines and destroy the | |
642 | * permanent ones, just to be confusing :) -A1kmm */ | |
643 | if(arec->aconf->flags & CONF_FLAGS_TEMPORARY || | |
644 | (arec->type == CONF_CLIENT || arec->type == CONF_EXEMPTDLINE)) | |
645 | { | |
646 | *store_next = arec; | |
647 | store_next = &arec->next; | |
648 | } | |
649 | else | |
650 | { | |
651 | arec->aconf->status |= CONF_ILLEGAL; | |
652 | if(!arec->aconf->clients) | |
653 | free_conf(arec->aconf); | |
654 | rb_free(arec); | |
655 | } | |
656 | } | |
657 | *store_next = NULL; | |
658 | } | |
659 | } | |
660 | ||
661 | ||
662 | /* | |
663 | * show_iline_prefix() | |
664 | * | |
665 | * inputs - pointer to struct Client requesting output | |
666 | * - pointer to struct ConfItem | |
667 | * - name to which iline prefix will be prefixed to | |
668 | * output - pointer to static string with prefixes listed in ascii form | |
669 | * side effects - NONE | |
670 | */ | |
671 | char * | |
672 | show_iline_prefix(struct Client *sptr, struct ConfItem *aconf, char *name) | |
673 | { | |
674 | static char prefix_of_host[USERLEN + 15]; | |
675 | char *prefix_ptr; | |
676 | ||
677 | prefix_ptr = prefix_of_host; | |
678 | if(IsNoTilde(aconf)) | |
679 | *prefix_ptr++ = '-'; | |
680 | if(IsNeedIdentd(aconf)) | |
681 | *prefix_ptr++ = '+'; | |
682 | if(IsConfDoSpoofIp(aconf)) | |
683 | *prefix_ptr++ = '='; | |
684 | if(IsOper(sptr) && IsConfExemptFlood(aconf)) | |
685 | *prefix_ptr++ = '|'; | |
686 | if(IsOper(sptr) && IsConfExemptGline(aconf) && !IsConfExemptKline(aconf)) | |
687 | *prefix_ptr++ = '_'; | |
688 | if(IsOper(sptr) && IsConfExemptDNSBL(aconf) && !IsConfExemptKline(aconf)) | |
689 | *prefix_ptr++ = '$'; | |
690 | if(IsOper(sptr) && IsConfExemptKline(aconf)) | |
691 | *prefix_ptr++ = '^'; | |
692 | if(IsOper(sptr) && IsConfExemptLimits(aconf)) | |
693 | *prefix_ptr++ = '>'; | |
694 | *prefix_ptr = '\0'; | |
695 | strncpy(prefix_ptr, name, USERLEN); | |
696 | return (prefix_of_host); | |
697 | } | |
698 | ||
699 | /* report_auth() | |
700 | * | |
701 | * Inputs: pointer to client to report to | |
702 | * Output: None | |
703 | * Side effects: Reports configured auth{} blocks to client_p | |
704 | */ | |
705 | void | |
706 | report_auth(struct Client *client_p) | |
707 | { | |
708 | char *name, *host, *pass, *user, *classname; | |
709 | struct AddressRec *arec; | |
710 | struct ConfItem *aconf; | |
711 | int i, port; | |
712 | ||
713 | for (i = 0; i < ATABLE_SIZE; i++) | |
714 | for (arec = atable[i]; arec; arec = arec->next) | |
715 | if(arec->type == CONF_CLIENT) | |
716 | { | |
717 | aconf = arec->aconf; | |
718 | ||
719 | if(!IsOper(client_p) && IsConfDoSpoofIp(aconf)) | |
720 | continue; | |
721 | ||
722 | get_printable_conf(aconf, &name, &host, &pass, &user, &port, | |
723 | &classname); | |
724 | ||
725 | sendto_one_numeric(client_p, RPL_STATSILINE, | |
726 | form_str(RPL_STATSILINE), | |
727 | name, show_iline_prefix(client_p, aconf, user), | |
728 | show_ip_conf(aconf, client_p) ? host : "255.255.255.255", | |
729 | port, classname); | |
730 | } | |
731 | } | |
732 | ||
733 | /* report_Klines() | |
734 | * | |
735 | * inputs - Client to report to, mask | |
736 | * outputs - | |
737 | * side effects - Reports configured K-lines to client_p. | |
738 | */ | |
739 | void | |
740 | report_Klines(struct Client *source_p) | |
741 | { | |
742 | char *host, *pass, *user, *oper_reason; | |
743 | struct AddressRec *arec; | |
744 | struct ConfItem *aconf = NULL; | |
745 | int i; | |
746 | ||
747 | for (i = 0; i < ATABLE_SIZE; i++) | |
748 | { | |
749 | for (arec = atable[i]; arec; arec = arec->next) | |
750 | { | |
751 | if(arec->type == CONF_KILL) | |
752 | { | |
753 | aconf = arec->aconf; | |
754 | ||
755 | /* its a tempkline, theyre reported elsewhere */ | |
756 | if(aconf->flags & CONF_FLAGS_TEMPORARY) | |
757 | continue; | |
758 | ||
759 | get_printable_kline(source_p, aconf, &host, &pass, &user, &oper_reason); | |
760 | sendto_one_numeric(source_p, RPL_STATSKLINE, | |
761 | form_str(RPL_STATSKLINE), | |
762 | 'K', host, user, pass, | |
763 | oper_reason ? "|" : "", | |
764 | oper_reason ? oper_reason : ""); | |
765 | } | |
766 | } | |
767 | } | |
768 | } |