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root/svn/ircd-hybrid/trunk/modules/m_dline.c
Revision: 2810
Committed: Sun Jan 12 18:30:44 2014 UTC (12 years, 7 months ago) by michael
Content type: text/x-csrc
File size: 14894 byte(s)
Log Message:
- m_dline.c, m_kline.c: fixed indentation, style cleanups, reformatting

File Contents

# Content
1 /*
2 * ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3 *
4 * Copyright (c) 2002-2014 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
19 * USA
20 */
21
22 /*! \file m_dline.c
23 * \brief Includes required functions for processing the DLINE/UNDLINE command.
24 * \version $Id$
25 */
26
27 #include "stdinc.h"
28 #include "list.h"
29 #include "channel.h"
30 #include "client.h"
31 #include "irc_string.h"
32 #include "conf.h"
33 #include "ircd.h"
34 #include "hostmask.h"
35 #include "numeric.h"
36 #include "fdlist.h"
37 #include "s_bsd.h"
38 #include "log.h"
39 #include "s_misc.h"
40 #include "send.h"
41 #include "hash.h"
42 #include "s_serv.h"
43 #include "parse.h"
44 #include "modules.h"
45 #include "conf_db.h"
46 #include "memory.h"
47
48
49 /* apply_tdline()
50 *
51 * inputs -
52 * output - NONE
53 * side effects - tkline as given is placed
54 */
55 static void
56 apply_dline(struct Client *source_p, struct MaskItem *conf,
57 time_t tkline_time)
58 {
59 if (tkline_time)
60 {
61 conf->until = CurrentTime + tkline_time;
62 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
63 "%s added temporary %d min. D-Line for [%s] [%s]",
64 get_oper_name(source_p), tkline_time/60,
65 conf->host, conf->reason);
66 sendto_one(source_p, ":%s NOTICE %s :Added temporary %d min. D-Line [%s]",
67 MyConnect(source_p) ? me.name : ID_or_name(&me, source_p->from),
68 source_p->name, tkline_time/60, conf->host);
69 ilog(LOG_TYPE_DLINE, "%s added temporary %d min. D-Line for [%s] [%s]",
70 get_oper_name(source_p), tkline_time/60, conf->host, conf->reason);
71 }
72 else
73 {
74 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
75 "%s added D-Line for [%s] [%s]",
76 get_oper_name(source_p), conf->host, conf->reason);
77 sendto_one(source_p, ":%s NOTICE %s :Added D-Line [%s]",
78 MyConnect(source_p) ? me.name : ID_or_name(&me, source_p->from),
79 source_p->name, conf->host);
80 ilog(LOG_TYPE_DLINE, "%s added D-Line for [%s] [%s]",
81 get_oper_name(source_p), conf->host, conf->reason);
82
83 }
84
85 SetConfDatabase(conf);
86 conf->setat = CurrentTime;
87 add_conf_by_address(CONF_DLINE, conf);
88 rehashed_klines = 1;
89 }
90
91 /* static int remove_tdline_match(const char *host, const char *user)
92 * Input: An ip to undline.
93 * Output: returns YES on success, NO if no tdline removed.
94 * Side effects: Any matching tdlines are removed.
95 */
96 static int
97 remove_dline_match(const char *host)
98 {
99 struct irc_ssaddr iphost, *piphost;
100 struct MaskItem *conf;
101 int t = 0;
102 int aftype = 0;
103
104 if ((t = parse_netmask(host, &iphost, NULL)) != HM_HOST)
105 {
106 #ifdef IPV6
107 if (t == HM_IPV6)
108 aftype = AF_INET6;
109 else
110 #endif
111 aftype = AF_INET;
112 piphost = &iphost;
113 }
114 else
115 piphost = NULL;
116
117 if ((conf = find_conf_by_address(host, piphost, CONF_DLINE | 1, aftype, NULL, NULL, 0)))
118 {
119 if (IsConfDatabase(conf))
120 {
121 delete_one_address_conf(host, conf);
122 return 1;
123 }
124 }
125
126 return 0;
127 }
128
129 /* mo_dline()
130 *
131 * inputs - pointer to server
132 * - pointer to client
133 * - parameter count
134 * - parameter list
135 * output -
136 * side effects - D line is added
137 *
138 */
139 static void
140 mo_dline(struct Client *client_p, struct Client *source_p,
141 int parc, char *parv[])
142 {
143 char def_reason[] = CONF_NOREASON;
144 char *dlhost = NULL, *reason = NULL;
145 char *target_server = NULL;
146 const char *creason;
147 const struct Client *target_p = NULL;
148 struct irc_ssaddr daddr;
149 struct MaskItem *conf=NULL;
150 time_t tkline_time=0;
151 int bits = 0, aftype = 0, t = 0;
152 const char *current_date = NULL;
153 time_t cur_time;
154 char hostip[HOSTIPLEN + 1];
155 char buffer[IRCD_BUFSIZE];
156
157 if (!HasOFlag(source_p, OPER_FLAG_DLINE))
158 {
159 sendto_one(source_p, form_str(ERR_NOPRIVS), me.name,
160 source_p->name, "dline");
161 return;
162 }
163
164 if (parse_aline("DLINE", source_p, parc, parv, AWILD, &dlhost,
165 NULL, &tkline_time, &target_server, &reason) < 0)
166 return;
167
168 if (target_server != NULL)
169 {
170 sendto_match_servs(source_p, target_server, CAP_DLN, "DLINE %s %lu %s :%s",
171 target_server, (unsigned long)tkline_time,
172 dlhost, reason);
173
174 /* Allow ON to apply local kline as well if it matches */
175 if (match(target_server, me.name))
176 return;
177 }
178 else
179 cluster_a_line(source_p, "DLINE", CAP_DLN, SHARED_DLINE,
180 "%d %s :%s", tkline_time, dlhost, reason);
181
182 if ((t = parse_netmask(dlhost, NULL, &bits)) == HM_HOST)
183 {
184 if ((target_p = find_chasing(source_p, dlhost, NULL)) == NULL)
185 return;
186
187 if (!MyConnect(target_p))
188 {
189 sendto_one(source_p,
190 ":%s NOTICE %s :Can't DLINE nick on another server",
191 me.name, source_p->name);
192 return;
193 }
194
195 if (IsExemptKline(target_p))
196 {
197 sendto_one(source_p, ":%s NOTICE %s :%s is E-lined",
198 me.name, source_p->name, target_p->name);
199 return;
200 }
201
202 getnameinfo((struct sockaddr *)&target_p->localClient->ip,
203 target_p->localClient->ip.ss_len, hostip,
204 sizeof(hostip), NULL, 0, NI_NUMERICHOST);
205 dlhost = hostip;
206 t = parse_netmask(dlhost, NULL, &bits);
207 assert(t == HM_IPV4 || t == HM_IPV6);
208 }
209
210 if (bits < 8)
211 {
212 sendto_one(source_p,
213 ":%s NOTICE %s :For safety, bitmasks less than 8 require conf access.",
214 me.name, source_p->name);
215 return;
216 }
217
218 #ifdef IPV6
219 if (t == HM_IPV6)
220 aftype = AF_INET6;
221 else
222 #endif
223 aftype = AF_INET;
224
225 parse_netmask(dlhost, &daddr, NULL);
226
227 if ((conf = find_dline_conf(&daddr, aftype)) != NULL)
228 {
229 creason = conf->reason ? conf->reason : def_reason;
230
231 if (IsConfExemptKline(conf))
232 sendto_one(source_p, ":%s NOTICE %s :[%s] is (E)d-lined by [%s] - %s",
233 me.name, source_p->name, dlhost, conf->host, creason);
234 else
235 sendto_one(source_p, ":%s NOTICE %s :[%s] already D-lined by [%s] - %s",
236 me.name, source_p->name, dlhost, conf->host, creason);
237 return;
238 }
239
240 cur_time = CurrentTime;
241 current_date = smalldate(cur_time);
242
243 if (!valid_comment(source_p, reason, 1))
244 return;
245
246 conf = conf_make(CONF_DLINE);
247 conf->host = xstrdup(dlhost);
248
249 if (tkline_time != 0)
250 snprintf(buffer, sizeof(buffer), "Temporary D-line %d min. - %s (%s)",
251 (int)(tkline_time/60), reason, current_date);
252 else
253 snprintf(buffer, sizeof(buffer), "%s (%s)", reason, current_date);
254
255 conf->reason = xstrdup(buffer);
256 apply_dline(source_p, conf, tkline_time);
257 rehashed_klines = 1;
258 }
259
260 static void
261 ms_dline(struct Client *client_p, struct Client *source_p,
262 int parc, char *parv[])
263 {
264 char def_reason[] = CONF_NOREASON;
265 char *dlhost, *reason;
266 const char *creason;
267 const struct Client *target_p = NULL;
268 struct irc_ssaddr daddr;
269 struct MaskItem *conf=NULL;
270 time_t tkline_time=0;
271 int bits = 0, aftype = 0, t = 0;
272 const char *current_date = NULL;
273 time_t cur_time;
274 char hostip[HOSTIPLEN + 1];
275 char buffer[IRCD_BUFSIZE];
276
277 if (parc != 5 || EmptyString(parv[4]))
278 return;
279
280 /* parv[0] parv[1] parv[2] parv[3] parv[4] */
281 /* oper target_server tkline_time host reason */
282 sendto_match_servs(source_p, parv[1], CAP_DLN,
283 "DLINE %s %s %s :%s",
284 parv[1], parv[2], parv[3], parv[4]);
285
286 if (match(parv[1], me.name))
287 return;
288
289 tkline_time = valid_tkline(parv[2], TK_SECONDS);
290 dlhost = parv[3];
291 reason = parv[4];
292
293 if (HasFlag(source_p, FLAGS_SERVICE) ||
294 find_matching_name_conf(CONF_ULINE, source_p->servptr->name,
295 source_p->username, source_p->host,
296 SHARED_DLINE))
297 {
298 if (!IsClient(source_p))
299 return;
300 if ((t = parse_netmask(dlhost, NULL, &bits)) == HM_HOST)
301 {
302 if ((target_p = find_chasing(source_p, dlhost, NULL)) == NULL)
303 return;
304
305 if (!MyConnect(target_p))
306 {
307 sendto_one(source_p,
308 ":%s NOTICE %s :Can't DLINE nick on another server",
309 me.name, source_p->name);
310 return;
311 }
312
313 if (IsExemptKline(target_p))
314 {
315 sendto_one(source_p,
316 ":%s NOTICE %s :%s is E-lined", me.name,
317 source_p->name, target_p->name);
318 return;
319 }
320
321 getnameinfo((struct sockaddr *)&target_p->localClient->ip,
322 target_p->localClient->ip.ss_len, hostip,
323 sizeof(hostip), NULL, 0, NI_NUMERICHOST);
324 dlhost = hostip;
325 t = parse_netmask(dlhost, NULL, &bits);
326 assert(t == HM_IPV4 || t == HM_IPV6);
327 }
328
329 if (bits < 8)
330 {
331 sendto_one(source_p,
332 ":%s NOTICE %s :For safety, bitmasks less than 8 require conf access.",
333 me.name, source_p->name);
334 return;
335 }
336
337 #ifdef IPV6
338 if (t == HM_IPV6)
339 aftype= AF_INET6;
340 else
341 #endif
342 aftype = AF_INET;
343
344 parse_netmask(dlhost, &daddr, NULL);
345
346 if ((conf = find_dline_conf(&daddr, aftype)) != NULL)
347 {
348 creason = conf->reason ? conf->reason : def_reason;
349 if (IsConfExemptKline(conf))
350 sendto_one(source_p,
351 ":%s NOTICE %s :[%s] is (E)d-lined by [%s] - %s",
352 me.name, source_p->name, dlhost, conf->host, creason);
353 else
354 sendto_one(source_p,
355 ":%s NOTICE %s :[%s] already D-lined by [%s] - %s",
356 me.name, source_p->name, dlhost, conf->host, creason);
357 return;
358 }
359
360 cur_time = CurrentTime;
361 current_date = smalldate(cur_time);
362
363 if (!valid_comment(source_p, reason, 1))
364 return;
365
366 conf = conf_make(CONF_DLINE);
367 conf->host = xstrdup(dlhost);
368
369 if (tkline_time != 0)
370 snprintf(buffer, sizeof(buffer), "Temporary D-line %d min. - %s (%s)",
371 (int)(tkline_time/60), reason, current_date);
372 else
373 snprintf(buffer, sizeof(buffer), "%s (%s)", reason, current_date);
374
375 conf->reason = xstrdup(buffer);
376 apply_dline(source_p, conf, tkline_time);
377 rehashed_klines = 1;
378 }
379 }
380
381 /*
382 ** m_undline
383 ** added May 28th 2000 by Toby Verrall <toot@melnet.co.uk>
384 ** based totally on m_unkline
385 ** added to hybrid-7 7/11/2000 --is
386 **
387 ** parv[0] = sender nick
388 ** parv[1] = dline to remove
389 */
390 static void
391 mo_undline(struct Client *client_p, struct Client *source_p,
392 int parc, char *parv[])
393 {
394 char *addr = NULL, *user = NULL;
395 char *target_server = NULL;
396
397 if (!HasOFlag(source_p, OPER_FLAG_UNDLINE))
398 {
399 sendto_one(source_p, form_str(ERR_NOPRIVS), me.name,
400 source_p->name, "undline");
401 return;
402 }
403
404 if (parc < 2 || EmptyString(parv[1]))
405 {
406 sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
407 me.name, source_p->name, "UNDLINE");
408 return;
409 }
410
411 if (parse_aline("UNDLINE", source_p, parc, parv, 0, &user,
412 &addr, NULL, &target_server, NULL) < 0)
413 return;
414
415 if (target_server != NULL)
416 {
417 sendto_match_servs(source_p, target_server, CAP_UNDLN,
418 "UNDLINE %s %s", target_server, addr);
419
420 /* Allow ON to apply local unkline as well if it matches */
421 if (match(target_server, me.name))
422 return;
423 }
424 else
425 cluster_a_line(source_p, "UNDLINE", CAP_UNDLN, SHARED_UNDLINE,
426 "%s", addr);
427
428 if (remove_dline_match(addr))
429 {
430 sendto_one(source_p, ":%s NOTICE %s :D-Line for [%s] is removed",
431 me.name, source_p->name, addr);
432 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
433 "%s has removed the D-Line for: [%s]",
434 get_oper_name(source_p), addr);
435 ilog(LOG_TYPE_DLINE, "%s removed D-Line for [%s]",
436 get_oper_name(source_p), addr);
437 }
438 else
439 sendto_one(source_p, ":%s NOTICE %s :No D-Line for [%s] found",
440 me.name, source_p->name, addr);
441 }
442
443 static void
444 me_undline(struct Client *client_p, struct Client *source_p,
445 int parc, char *parv[])
446 {
447 const char *addr = NULL;
448
449 if (parc != 3 || EmptyString(parv[2]))
450 return;
451
452 addr = parv[2];
453
454 if (!IsClient(source_p) || match(parv[1], me.name))
455 return;
456
457 if (HasFlag(source_p, FLAGS_SERVICE) ||
458 find_matching_name_conf(CONF_ULINE, source_p->servptr->name,
459 source_p->username, source_p->host,
460 SHARED_UNDLINE))
461 {
462 if (remove_dline_match(addr))
463 {
464 sendto_one(source_p, ":%s NOTICE %s :D-Line for [%s] is removed",
465 me.name, source_p->name, addr);
466 sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
467 "%s has removed the D-Line for: [%s]",
468 get_oper_name(source_p), addr);
469 ilog(LOG_TYPE_DLINE, "%s removed D-Line for [%s]",
470 get_oper_name(source_p), addr);
471 }
472 else
473 sendto_one(source_p, ":%s NOTICE %s :No D-Line for [%s] found",
474 me.name, source_p->name, addr);
475 }
476 }
477
478 static void
479 ms_undline(struct Client *client_p, struct Client *source_p,
480 int parc, char *parv[])
481 {
482 if (parc != 3 || EmptyString(parv[2]))
483 return;
484
485 sendto_match_servs(source_p, parv[1], CAP_UNDLN,
486 "UNDLINE %s %s",
487 parv[1], parv[2]);
488
489 me_undline(client_p, source_p, parc, parv);
490 }
491
492 static struct Message dline_msgtab =
493 {
494 "DLINE", 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
495 { m_unregistered, m_not_oper, ms_dline, m_ignore, mo_dline, m_ignore }
496 };
497
498 static struct Message undline_msgtab =
499 {
500 "UNDLINE", 0, 0, 2, MAXPARA, MFLG_SLOW, 0,
501 { m_unregistered, m_not_oper, ms_undline, m_ignore, mo_undline, m_ignore }
502 };
503
504 static void
505 module_init(void)
506 {
507 mod_add_cmd(&dline_msgtab);
508 mod_add_cmd(&undline_msgtab);
509 add_capability("DLN", CAP_DLN, 1);
510 add_capability("UNDLN", CAP_UNDLN, 1);
511 }
512
513 static void
514 module_exit(void)
515 {
516 mod_del_cmd(&dline_msgtab);
517 mod_del_cmd(&undline_msgtab);
518 delete_capability("UNDLN");
519 delete_capability("DLN");
520 }
521
522 struct module module_entry =
523 {
524 .node = { NULL, NULL, NULL },
525 .name = NULL,
526 .version = "$Revision$",
527 .handle = NULL,
528 .modinit = module_init,
529 .modexit = module_exit,
530 .flags = 0
531 };

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svn:keywords Id Revision