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Commit | Line | Data |
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212380e3 AC |
1 | /* |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * m_dline.c: Bans/unbans a user. | |
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 | * | |
8bbeb278 | 24 | * $Id$ |
212380e3 AC |
25 | */ |
26 | ||
27 | #include "stdinc.h" | |
212380e3 AC |
28 | #include "channel.h" |
29 | #include "class.h" | |
30 | #include "client.h" | |
31 | #include "common.h" | |
4562c604 | 32 | #include "match.h" |
212380e3 AC |
33 | #include "ircd.h" |
34 | #include "hostmask.h" | |
35 | #include "numeric.h" | |
212380e3 AC |
36 | #include "s_conf.h" |
37 | #include "s_newconf.h" | |
4016731b | 38 | #include "logger.h" |
212380e3 AC |
39 | #include "send.h" |
40 | #include "hash.h" | |
41 | #include "s_serv.h" | |
42 | #include "msg.h" | |
43 | #include "parse.h" | |
44 | #include "modules.h" | |
8bbeb278 | 45 | #include "bandbi.h" |
27f616dd | 46 | #include "operhash.h" |
212380e3 AC |
47 | |
48 | static int mo_dline(struct Client *, struct Client *, int, const char **); | |
f5cb68d5 | 49 | static int me_dline(struct Client *, struct Client *, int, const char **); |
212380e3 | 50 | static int mo_undline(struct Client *, struct Client *, int, const char **); |
f5cb68d5 | 51 | static int me_undline(struct Client *, struct Client *, int, const char **); |
212380e3 AC |
52 | |
53 | struct Message dline_msgtab = { | |
54 | "DLINE", 0, 0, 0, MFLG_SLOW, | |
f5cb68d5 | 55 | {mg_unreg, mg_not_oper, mg_ignore, mg_ignore, {me_dline, 3}, {mo_dline, 2}} |
212380e3 | 56 | }; |
8bbeb278 | 57 | |
212380e3 AC |
58 | struct Message undline_msgtab = { |
59 | "UNDLINE", 0, 0, 0, MFLG_SLOW, | |
f5cb68d5 | 60 | {mg_unreg, mg_not_oper, mg_ignore, mg_ignore, {me_undline, 1}, {mo_undline, 2}} |
212380e3 AC |
61 | }; |
62 | ||
63 | mapi_clist_av1 dline_clist[] = { &dline_msgtab, &undline_msgtab, NULL }; | |
8bbeb278 AC |
64 | |
65 | DECLARE_MODULE_AV1(dline, NULL, NULL, dline_clist, NULL, NULL, "$Revision$"); | |
212380e3 AC |
66 | |
67 | static int valid_comment(char *comment); | |
6f3a09ff | 68 | static int remove_temp_dline(struct ConfItem *); |
5f7a6a3d | 69 | static int apply_dline(struct Client *, const char *, int, char *); |
f5cb68d5 | 70 | static int apply_undline(struct Client *, const char *); |
212380e3 AC |
71 | |
72 | /* mo_dline() | |
73 | * | |
74 | * parv[1] - dline to add | |
75 | * parv[2] - reason | |
76 | */ | |
77 | static int | |
8bbeb278 | 78 | mo_dline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 AC |
79 | { |
80 | char def[] = "No Reason"; | |
81 | const char *dlhost; | |
212380e3 | 82 | char *reason = def; |
212380e3 | 83 | char cidr_form_host[HOSTLEN + 1]; |
212380e3 | 84 | int tdline_time = 0; |
f5cb68d5 | 85 | const char *target_server = NULL; |
212380e3 AC |
86 | int loc = 1; |
87 | ||
88 | if(!IsOperK(source_p)) | |
89 | { | |
8bbeb278 | 90 | sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "kline"); |
212380e3 AC |
91 | return 0; |
92 | } | |
93 | ||
94 | if((tdline_time = valid_temp_time(parv[loc])) >= 0) | |
95 | loc++; | |
96 | ||
212380e3 | 97 | dlhost = parv[loc]; |
f427c8b0 | 98 | rb_strlcpy(cidr_form_host, dlhost, sizeof(cidr_form_host)); |
212380e3 | 99 | |
f5cb68d5 VY |
100 | loc++; |
101 | ||
8bbeb278 AC |
102 | if(parc >= loc + 2 && !irccmp(parv[loc], "ON")) |
103 | { | |
2cfb7214 JT |
104 | if(!IsOperRemoteBan(source_p)) |
105 | { | |
106 | sendto_one(source_p, form_str(ERR_NOPRIVS), | |
8bbeb278 | 107 | me.name, source_p->name, "remoteban"); |
2cfb7214 JT |
108 | return 0; |
109 | } | |
110 | ||
8bbeb278 | 111 | target_server = parv[loc + 1]; |
f5cb68d5 VY |
112 | loc += 2; |
113 | } | |
114 | ||
115 | if(parc >= loc + 1 && !EmptyString(parv[loc])) | |
116 | reason = LOCAL_COPY(parv[loc]); | |
117 | ||
118 | if(target_server != NULL) | |
212380e3 | 119 | { |
f5cb68d5 | 120 | sendto_match_servs(source_p, target_server, |
8bbeb278 AC |
121 | CAP_ENCAP, NOCAPS, |
122 | "ENCAP %s DLINE %d %s :%s", | |
123 | target_server, tdline_time, dlhost, reason); | |
f5cb68d5 VY |
124 | |
125 | if(!match(target_server, me.name)) | |
126 | return 0; | |
212380e3 AC |
127 | } |
128 | ||
f5cb68d5 VY |
129 | apply_dline(source_p, dlhost, tdline_time, reason); |
130 | ||
131 | check_dlines(); | |
132 | return 0; | |
133 | } | |
212380e3 | 134 | |
f5cb68d5 VY |
135 | /* mo_undline() |
136 | * | |
137 | * parv[1] = dline to remove | |
138 | */ | |
139 | static int | |
140 | mo_undline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) | |
141 | { | |
142 | const char *cidr; | |
143 | const char *target_server = NULL; | |
144 | ||
145 | if(!IsOperK(source_p)) | |
146 | { | |
8bbeb278 AC |
147 | sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "unkline"); |
148 | return 0; | |
149 | } | |
150 | ||
f5cb68d5 VY |
151 | cidr = parv[1]; |
152 | ||
153 | if(parc >= 4 && !irccmp(parv[2], "ON")) | |
212380e3 | 154 | { |
2cfb7214 JT |
155 | if(!IsOperRemoteBan(source_p)) |
156 | { | |
157 | sendto_one(source_p, form_str(ERR_NOPRIVS), | |
8bbeb278 | 158 | me.name, source_p->name, "remoteban"); |
2cfb7214 JT |
159 | return 0; |
160 | } | |
161 | ||
f5cb68d5 VY |
162 | target_server = parv[3]; |
163 | sendto_match_servs(source_p, target_server, | |
8bbeb278 | 164 | CAP_ENCAP, NOCAPS, "ENCAP %s UNDLINE %s", target_server, cidr); |
212380e3 | 165 | |
f5cb68d5 | 166 | if(!match(target_server, me.name)) |
212380e3 | 167 | return 0; |
212380e3 AC |
168 | } |
169 | ||
f5cb68d5 VY |
170 | apply_undline(source_p, cidr); |
171 | ||
172 | return 0; | |
173 | } | |
174 | ||
5f7a6a3d JT |
175 | static int |
176 | me_dline(struct Client *client_p, struct Client *source_p, int parc, const char **parv) | |
177 | { | |
178 | int tdline_time = atoi(parv[1]); | |
179 | /* Since this is coming over a server link, assume that the originating | |
180 | * server did the relevant permission/sanity checks... | |
181 | */ | |
182 | ||
183 | if(!IsPerson(source_p)) | |
184 | return 0; | |
185 | ||
186 | if(!find_shared_conf(source_p->username, source_p->host, | |
8bbeb278 AC |
187 | source_p->servptr->name, |
188 | tdline_time > 0 ? SHARED_TDLINE : SHARED_PDLINE)) | |
5f7a6a3d | 189 | return 0; |
5f7a6a3d JT |
190 | |
191 | apply_dline(source_p, parv[2], tdline_time, LOCAL_COPY(parv[3])); | |
192 | ||
193 | check_dlines(); | |
194 | return 0; | |
195 | } | |
196 | ||
197 | static int | |
198 | me_undline(struct Client *client_p, struct Client *source_p, int parc, const char **parv) | |
199 | { | |
200 | if(!IsPerson(source_p)) | |
201 | return 0; | |
202 | ||
203 | if(!find_shared_conf(source_p->username, source_p->host, | |
8bbeb278 | 204 | source_p->servptr->name, SHARED_UNDLINE)) |
5f7a6a3d JT |
205 | return 0; |
206 | ||
207 | apply_undline(source_p, parv[1]); | |
208 | ||
209 | return 0; | |
f5cb68d5 VY |
210 | } |
211 | ||
212 | static int | |
213 | apply_dline(struct Client *source_p, const char *dlhost, int tdline_time, char *reason) | |
214 | { | |
215 | struct ConfItem *aconf; | |
216 | char *oper_reason; | |
f5cb68d5 VY |
217 | struct rb_sockaddr_storage daddr; |
218 | int t = AF_INET, ty, b; | |
219 | const char *creason; | |
220 | ||
8bbeb278 | 221 | ty = parse_netmask(dlhost, (struct sockaddr *) &daddr, &b); |
f5cb68d5 VY |
222 | if(ty == HM_HOST) |
223 | { | |
8bbeb278 | 224 | sendto_one(source_p, ":%s NOTICE %s :Invalid D-Line", me.name, source_p->name); |
f5cb68d5 VY |
225 | return 0; |
226 | } | |
227 | #ifdef RB_IPV6 | |
228 | if(ty == HM_IPV6) | |
229 | t = AF_INET6; | |
230 | else | |
231 | #endif | |
232 | t = AF_INET; | |
233 | ||
234 | /* This means dlines wider than /16 cannot be set remotely */ | |
212380e3 AC |
235 | if(IsOperAdmin(source_p)) |
236 | { | |
f5cb68d5 | 237 | if(b < 8) |
212380e3 | 238 | { |
f5cb68d5 | 239 | sendto_one_notice(source_p, |
8bbeb278 | 240 | ":For safety, bitmasks less than 8 require conf access."); |
212380e3 AC |
241 | return 0; |
242 | } | |
243 | } | |
244 | else | |
245 | { | |
f5cb68d5 | 246 | if(b < 16) |
212380e3 | 247 | { |
f5cb68d5 | 248 | sendto_one_notice(source_p, |
8bbeb278 | 249 | ":Dline bitmasks less than 16 are for admins only."); |
212380e3 AC |
250 | return 0; |
251 | } | |
252 | } | |
253 | ||
f5cb68d5 VY |
254 | if(!valid_comment(reason)) |
255 | { | |
256 | sendto_one(source_p, | |
257 | ":%s NOTICE %s :Invalid character '\"' in comment", | |
258 | me.name, source_p->name); | |
259 | return 0; | |
260 | } | |
261 | ||
54ac8b60 VY |
262 | if(ConfigFileEntry.non_redundant_klines) |
263 | { | |
8bbeb278 | 264 | if((aconf = find_dline((struct sockaddr *) &daddr, t)) != NULL) |
54ac8b60 VY |
265 | { |
266 | int bx; | |
267 | parse_netmask(aconf->host, NULL, &bx); | |
268 | if(b >= bx) | |
269 | { | |
270 | creason = aconf->passwd ? aconf->passwd : "<No Reason>"; | |
271 | if(IsConfExemptKline(aconf)) | |
272 | sendto_one(source_p, | |
273 | ":%s NOTICE %s :[%s] is (E)d-lined by [%s] - %s", | |
8bbeb278 AC |
274 | me.name, source_p->name, dlhost, aconf->host, |
275 | creason); | |
54ac8b60 VY |
276 | else |
277 | sendto_one(source_p, | |
278 | ":%s NOTICE %s :[%s] already D-lined by [%s] - %s", | |
8bbeb278 AC |
279 | me.name, source_p->name, dlhost, aconf->host, |
280 | creason); | |
54ac8b60 VY |
281 | return 0; |
282 | } | |
283 | } | |
212380e3 AC |
284 | } |
285 | ||
7df5fcfb | 286 | rb_set_time(); |
212380e3 AC |
287 | |
288 | aconf = make_conf(); | |
289 | aconf->status = CONF_DLINE; | |
b52c2949 | 290 | aconf->created = rb_current_time(); |
47a03750 | 291 | aconf->host = rb_strdup(dlhost); |
a12ad044 | 292 | aconf->passwd = rb_strdup(reason); |
27f616dd | 293 | aconf->info.oper = operhash_add(get_oper_name(source_p)); |
212380e3 | 294 | |
08e8aa7a VY |
295 | /* Look for an oper reason */ |
296 | if((oper_reason = strchr(reason, '|')) != NULL) | |
297 | { | |
298 | *oper_reason = '\0'; | |
299 | oper_reason++; | |
300 | ||
301 | if(!EmptyString(oper_reason)) | |
302 | aconf->spasswd = rb_strdup(oper_reason); | |
303 | } | |
304 | ||
212380e3 AC |
305 | if(tdline_time > 0) |
306 | { | |
e3354945 | 307 | aconf->hold = rb_current_time() + tdline_time; |
212380e3 AC |
308 | add_temp_dline(aconf); |
309 | ||
310 | if(EmptyString(oper_reason)) | |
311 | { | |
61c096aa | 312 | sendto_realops_snomask(SNO_GENERAL, L_ALL, |
8bbeb278 AC |
313 | "%s added temporary %d min. D-Line for [%s] [%s]", |
314 | get_oper_name(source_p), tdline_time / 60, | |
315 | aconf->host, reason); | |
212380e3 | 316 | ilog(L_KLINE, "D %s %d %s %s", |
8bbeb278 | 317 | get_oper_name(source_p), tdline_time / 60, aconf->host, reason); |
212380e3 AC |
318 | } |
319 | else | |
320 | { | |
61c096aa | 321 | sendto_realops_snomask(SNO_GENERAL, L_ALL, |
8bbeb278 AC |
322 | "%s added temporary %d min. D-Line for [%s] [%s|%s]", |
323 | get_oper_name(source_p), tdline_time / 60, | |
324 | aconf->host, reason, oper_reason); | |
212380e3 | 325 | ilog(L_KLINE, "D %s %d %s %s|%s", |
8bbeb278 AC |
326 | get_oper_name(source_p), tdline_time / 60, |
327 | aconf->host, reason, oper_reason); | |
212380e3 AC |
328 | } |
329 | ||
330 | sendto_one(source_p, ":%s NOTICE %s :Added temporary %d min. D-Line for [%s]", | |
331 | me.name, source_p->name, tdline_time / 60, aconf->host); | |
332 | } | |
333 | else | |
334 | { | |
40c1fd47 | 335 | add_conf_by_address(aconf->host, CONF_DLINE, NULL, NULL, aconf); |
8bbeb278 AC |
336 | |
337 | bandb_add(BANDB_DLINE, source_p, aconf->host, NULL, | |
338 | reason, EmptyString(aconf->spasswd) ? NULL : aconf->spasswd, 0); | |
9964e935 AC |
339 | |
340 | if(EmptyString(oper_reason)) | |
341 | { | |
342 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
343 | "%s added D-Line for [%s] [%s]", | |
344 | get_oper_name(source_p), aconf->host, reason); | |
345 | ilog(L_KLINE, "D %s 0 %s %s", | |
346 | get_oper_name(source_p), aconf->host, reason); | |
347 | } | |
348 | else | |
349 | { | |
350 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
351 | "%s added D-Line for [%s] [%s|%s]", | |
352 | get_oper_name(source_p), aconf->host, reason, oper_reason); | |
353 | ilog(L_KLINE, "D %s 0 %s %s|%s", | |
354 | get_oper_name(source_p), | |
355 | aconf->host, reason, oper_reason); | |
356 | } | |
212380e3 AC |
357 | } |
358 | ||
212380e3 AC |
359 | return 0; |
360 | } | |
361 | ||
212380e3 | 362 | static int |
f5cb68d5 | 363 | apply_undline(struct Client *source_p, const char *cidr) |
212380e3 | 364 | { |
8bbeb278 | 365 | char buf[BUFSIZE]; |
f5cb68d5 | 366 | struct ConfItem *aconf; |
212380e3 AC |
367 | |
368 | if(parse_netmask(cidr, NULL, NULL) == HM_HOST) | |
369 | { | |
5366977b | 370 | sendto_one_notice(source_p, ":Invalid D-Line"); |
212380e3 AC |
371 | return 0; |
372 | } | |
373 | ||
6f3a09ff JT |
374 | aconf = find_exact_conf_by_address(cidr, CONF_DLINE, NULL); |
375 | if(aconf == NULL) | |
376 | { | |
377 | sendto_one_notice(source_p, ":No D-Line for %s", cidr); | |
378 | return 0; | |
379 | } | |
380 | ||
f427c8b0 | 381 | rb_strlcpy(buf, aconf->host, sizeof buf); |
6f3a09ff | 382 | if(remove_temp_dline(aconf)) |
212380e3 AC |
383 | { |
384 | sendto_one(source_p, | |
385 | ":%s NOTICE %s :Un-dlined [%s] from temporary D-lines", | |
f5cb68d5 | 386 | me.name, source_p->name, buf); |
212380e3 | 387 | sendto_realops_snomask(SNO_GENERAL, L_ALL, |
8bbeb278 AC |
388 | "%s has removed the temporary D-Line for: [%s]", |
389 | get_oper_name(source_p), buf); | |
6f3a09ff | 390 | ilog(L_KLINE, "UD %s %s", get_oper_name(source_p), buf); |
212380e3 AC |
391 | return 0; |
392 | } | |
393 | ||
8bbeb278 | 394 | bandb_del(BANDB_DLINE, aconf->host, NULL); |
212380e3 | 395 | |
8bbeb278 AC |
396 | sendto_one(source_p, ":%s NOTICE %s :D-Line for [%s] is removed", me.name, source_p->name, |
397 | aconf->host); | |
398 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s has removed the D-Line for: [%s]", | |
399 | get_oper_name(source_p), aconf->host); | |
37f6cc05 JT |
400 | ilog(L_KLINE, "UD %s %s", get_oper_name(source_p), aconf->host); |
401 | delete_one_address_conf(aconf->host, aconf); | |
212380e3 AC |
402 | |
403 | return 0; | |
404 | } | |
405 | ||
406 | /* | |
407 | * valid_comment | |
408 | * inputs - pointer to client | |
409 | * - pointer to comment | |
410 | * output - 0 if no valid comment, 1 if valid | |
411 | * side effects - NONE | |
412 | */ | |
413 | static int | |
414 | valid_comment(char *comment) | |
415 | { | |
416 | if(strchr(comment, '"')) | |
417 | return 0; | |
418 | ||
61569b65 JT |
419 | if(strlen(comment) > BANREASONLEN) |
420 | comment[BANREASONLEN] = '\0'; | |
212380e3 AC |
421 | |
422 | return 1; | |
423 | } | |
424 | ||
212380e3 AC |
425 | /* remove_temp_dline() |
426 | * | |
6f3a09ff | 427 | * inputs - confitem to undline |
212380e3 AC |
428 | * outputs - |
429 | * side effects - tries to undline anything that matches | |
430 | */ | |
431 | static int | |
6f3a09ff | 432 | remove_temp_dline(struct ConfItem *aconf) |
212380e3 | 433 | { |
5b96d9a6 | 434 | rb_dlink_node *ptr; |
212380e3 AC |
435 | int i; |
436 | ||
8bbeb278 | 437 | for(i = 0; i < LAST_TEMP_TYPE; i++) |
212380e3 | 438 | { |
5b96d9a6 | 439 | RB_DLINK_FOREACH(ptr, temp_dlines[i].head) |
212380e3 | 440 | { |
8bbeb278 | 441 | if(aconf == ptr->data) |
212380e3 | 442 | { |
555ac41f | 443 | rb_dlinkDestroy(ptr, &temp_dlines[i]); |
212380e3 AC |
444 | delete_one_address_conf(aconf->host, aconf); |
445 | return YES; | |
446 | } | |
447 | } | |
448 | } | |
449 | ||
450 | return NO; | |
451 | } |