]>
Commit | Line | Data |
---|---|---|
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 | |
212380e3 AC |
23 | */ |
24 | ||
25 | #include "stdinc.h" | |
212380e3 AC |
26 | #include "channel.h" |
27 | #include "class.h" | |
28 | #include "client.h" | |
29 | #include "common.h" | |
4562c604 | 30 | #include "match.h" |
212380e3 AC |
31 | #include "ircd.h" |
32 | #include "hostmask.h" | |
33 | #include "numeric.h" | |
212380e3 AC |
34 | #include "s_conf.h" |
35 | #include "s_newconf.h" | |
4016731b | 36 | #include "logger.h" |
212380e3 AC |
37 | #include "send.h" |
38 | #include "hash.h" | |
39 | #include "s_serv.h" | |
40 | #include "msg.h" | |
41 | #include "parse.h" | |
42 | #include "modules.h" | |
8bbeb278 | 43 | #include "bandbi.h" |
27f616dd | 44 | #include "operhash.h" |
212380e3 | 45 | |
eeabf33a EM |
46 | static const char dline_desc[] = "Provides the DLINE facility to ban users via IP address"; |
47 | ||
3c7d6fcc EM |
48 | static void mo_dline(struct MsgBuf *, struct Client *, struct Client *, int, const char **); |
49 | static void me_dline(struct MsgBuf *, struct Client *, struct Client *, int, const char **); | |
50 | static void mo_undline(struct MsgBuf *, struct Client *, struct Client *, int, const char **); | |
51 | static void me_undline(struct MsgBuf *, struct Client *, struct Client *, int, const char **); | |
212380e3 AC |
52 | |
53 | struct Message dline_msgtab = { | |
7baa37a9 | 54 | "DLINE", 0, 0, 0, 0, |
b647efa0 | 55 | {mg_unreg, mg_not_oper, mg_ignore, mg_ignore, {me_dline, 4}, {mo_dline, 2}} |
212380e3 | 56 | }; |
8bbeb278 | 57 | |
212380e3 | 58 | struct Message undline_msgtab = { |
7baa37a9 | 59 | "UNDLINE", 0, 0, 0, 0, |
b647efa0 | 60 | {mg_unreg, mg_not_oper, mg_ignore, mg_ignore, {me_undline, 2}, {mo_undline, 2}} |
212380e3 AC |
61 | }; |
62 | ||
63 | mapi_clist_av1 dline_clist[] = { &dline_msgtab, &undline_msgtab, NULL }; | |
8bbeb278 | 64 | |
9fd8e7cb | 65 | DECLARE_MODULE_AV2(dline, NULL, NULL, dline_clist, NULL, NULL, NULL, NULL, dline_desc); |
212380e3 | 66 | |
3c7d6fcc EM |
67 | static bool remove_temp_dline(struct ConfItem *); |
68 | static void apply_dline(struct Client *, const char *, int, char *); | |
69 | static void apply_undline(struct Client *, const char *); | |
212380e3 AC |
70 | |
71 | /* mo_dline() | |
55abcbb2 | 72 | * |
212380e3 AC |
73 | * parv[1] - dline to add |
74 | * parv[2] - reason | |
75 | */ | |
3c7d6fcc | 76 | static void |
428ca87b | 77 | mo_dline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 AC |
78 | { |
79 | char def[] = "No Reason"; | |
80 | const char *dlhost; | |
212380e3 | 81 | char *reason = def; |
212380e3 | 82 | char cidr_form_host[HOSTLEN + 1]; |
212380e3 | 83 | int tdline_time = 0; |
f5cb68d5 | 84 | const char *target_server = NULL; |
212380e3 AC |
85 | int loc = 1; |
86 | ||
87 | if(!IsOperK(source_p)) | |
88 | { | |
8bbeb278 | 89 | sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "kline"); |
3c7d6fcc | 90 | return; |
212380e3 AC |
91 | } |
92 | ||
93 | if((tdline_time = valid_temp_time(parv[loc])) >= 0) | |
94 | loc++; | |
95 | ||
212380e3 | 96 | dlhost = parv[loc]; |
f427c8b0 | 97 | rb_strlcpy(cidr_form_host, dlhost, sizeof(cidr_form_host)); |
f5cb68d5 VY |
98 | loc++; |
99 | ||
2b843a5b JT |
100 | /* would break the protocol */ |
101 | if (*dlhost == ':') | |
102 | { | |
103 | sendto_one_notice(source_p, ":Invalid D-Line"); | |
3c7d6fcc | 104 | return; |
2b843a5b JT |
105 | } |
106 | ||
8bbeb278 AC |
107 | if(parc >= loc + 2 && !irccmp(parv[loc], "ON")) |
108 | { | |
2cfb7214 JT |
109 | if(!IsOperRemoteBan(source_p)) |
110 | { | |
111 | sendto_one(source_p, form_str(ERR_NOPRIVS), | |
8bbeb278 | 112 | me.name, source_p->name, "remoteban"); |
3c7d6fcc | 113 | return; |
2cfb7214 JT |
114 | } |
115 | ||
8bbeb278 | 116 | target_server = parv[loc + 1]; |
f5cb68d5 VY |
117 | loc += 2; |
118 | } | |
119 | ||
120 | if(parc >= loc + 1 && !EmptyString(parv[loc])) | |
121 | reason = LOCAL_COPY(parv[loc]); | |
122 | ||
123 | if(target_server != NULL) | |
212380e3 | 124 | { |
f5cb68d5 | 125 | sendto_match_servs(source_p, target_server, |
8bbeb278 AC |
126 | CAP_ENCAP, NOCAPS, |
127 | "ENCAP %s DLINE %d %s :%s", | |
128 | target_server, tdline_time, dlhost, reason); | |
f5cb68d5 VY |
129 | |
130 | if(!match(target_server, me.name)) | |
3c7d6fcc | 131 | return; |
212380e3 AC |
132 | } |
133 | ||
f5cb68d5 VY |
134 | apply_dline(source_p, dlhost, tdline_time, reason); |
135 | ||
136 | check_dlines(); | |
f5cb68d5 | 137 | } |
212380e3 | 138 | |
f5cb68d5 VY |
139 | /* mo_undline() |
140 | * | |
141 | * parv[1] = dline to remove | |
142 | */ | |
3c7d6fcc | 143 | static void |
428ca87b | 144 | mo_undline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
f5cb68d5 VY |
145 | { |
146 | const char *cidr; | |
147 | const char *target_server = NULL; | |
148 | ||
149 | if(!IsOperK(source_p)) | |
150 | { | |
8bbeb278 | 151 | sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "unkline"); |
3c7d6fcc | 152 | return; |
8bbeb278 AC |
153 | } |
154 | ||
f5cb68d5 VY |
155 | cidr = parv[1]; |
156 | ||
157 | if(parc >= 4 && !irccmp(parv[2], "ON")) | |
212380e3 | 158 | { |
2cfb7214 JT |
159 | if(!IsOperRemoteBan(source_p)) |
160 | { | |
161 | sendto_one(source_p, form_str(ERR_NOPRIVS), | |
8bbeb278 | 162 | me.name, source_p->name, "remoteban"); |
3c7d6fcc | 163 | return; |
2cfb7214 JT |
164 | } |
165 | ||
f5cb68d5 VY |
166 | target_server = parv[3]; |
167 | sendto_match_servs(source_p, target_server, | |
8bbeb278 | 168 | CAP_ENCAP, NOCAPS, "ENCAP %s UNDLINE %s", target_server, cidr); |
212380e3 | 169 | |
f5cb68d5 | 170 | if(!match(target_server, me.name)) |
3c7d6fcc | 171 | return; |
212380e3 AC |
172 | } |
173 | ||
f5cb68d5 | 174 | apply_undline(source_p, cidr); |
f5cb68d5 VY |
175 | } |
176 | ||
3c7d6fcc | 177 | static void |
428ca87b | 178 | me_dline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char **parv) |
5f7a6a3d JT |
179 | { |
180 | int tdline_time = atoi(parv[1]); | |
181 | /* Since this is coming over a server link, assume that the originating | |
182 | * server did the relevant permission/sanity checks... | |
183 | */ | |
184 | ||
185 | if(!IsPerson(source_p)) | |
3c7d6fcc | 186 | return; |
5f7a6a3d JT |
187 | |
188 | if(!find_shared_conf(source_p->username, source_p->host, | |
8bbeb278 AC |
189 | source_p->servptr->name, |
190 | tdline_time > 0 ? SHARED_TDLINE : SHARED_PDLINE)) | |
3c7d6fcc | 191 | return; |
5f7a6a3d JT |
192 | |
193 | apply_dline(source_p, parv[2], tdline_time, LOCAL_COPY(parv[3])); | |
194 | ||
195 | check_dlines(); | |
5f7a6a3d JT |
196 | } |
197 | ||
3c7d6fcc | 198 | static void |
428ca87b | 199 | me_undline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char **parv) |
5f7a6a3d JT |
200 | { |
201 | if(!IsPerson(source_p)) | |
3c7d6fcc | 202 | return; |
5f7a6a3d JT |
203 | |
204 | if(!find_shared_conf(source_p->username, source_p->host, | |
8bbeb278 | 205 | source_p->servptr->name, SHARED_UNDLINE)) |
3c7d6fcc | 206 | return; |
5f7a6a3d JT |
207 | |
208 | apply_undline(source_p, parv[1]); | |
f5cb68d5 VY |
209 | } |
210 | ||
3c7d6fcc | 211 | static void |
f5cb68d5 VY |
212 | apply_dline(struct Client *source_p, const char *dlhost, int tdline_time, char *reason) |
213 | { | |
214 | struct ConfItem *aconf; | |
215 | char *oper_reason; | |
f5cb68d5 VY |
216 | struct rb_sockaddr_storage daddr; |
217 | int t = AF_INET, ty, b; | |
218 | const char *creason; | |
219 | ||
29c92cf9 | 220 | ty = parse_netmask(dlhost, &daddr, &b); |
f5cb68d5 VY |
221 | if(ty == HM_HOST) |
222 | { | |
8bbeb278 | 223 | sendto_one(source_p, ":%s NOTICE %s :Invalid D-Line", me.name, source_p->name); |
3c7d6fcc | 224 | return; |
f5cb68d5 VY |
225 | } |
226 | #ifdef RB_IPV6 | |
227 | if(ty == HM_IPV6) | |
228 | t = AF_INET6; | |
229 | else | |
230 | #endif | |
231 | t = AF_INET; | |
232 | ||
233 | /* This means dlines wider than /16 cannot be set remotely */ | |
212380e3 AC |
234 | if(IsOperAdmin(source_p)) |
235 | { | |
f5cb68d5 | 236 | if(b < 8) |
212380e3 | 237 | { |
f5cb68d5 | 238 | sendto_one_notice(source_p, |
8bbeb278 | 239 | ":For safety, bitmasks less than 8 require conf access."); |
3c7d6fcc | 240 | return; |
212380e3 AC |
241 | } |
242 | } | |
243 | else | |
244 | { | |
f5cb68d5 | 245 | if(b < 16) |
212380e3 | 246 | { |
f5cb68d5 | 247 | sendto_one_notice(source_p, |
8bbeb278 | 248 | ":Dline bitmasks less than 16 are for admins only."); |
3c7d6fcc | 249 | return; |
212380e3 AC |
250 | } |
251 | } | |
252 | ||
54ac8b60 VY |
253 | if(ConfigFileEntry.non_redundant_klines) |
254 | { | |
8bbeb278 | 255 | if((aconf = find_dline((struct sockaddr *) &daddr, t)) != NULL) |
54ac8b60 VY |
256 | { |
257 | int bx; | |
258 | parse_netmask(aconf->host, NULL, &bx); | |
259 | if(b >= bx) | |
260 | { | |
261 | creason = aconf->passwd ? aconf->passwd : "<No Reason>"; | |
262 | if(IsConfExemptKline(aconf)) | |
263 | sendto_one(source_p, | |
264 | ":%s NOTICE %s :[%s] is (E)d-lined by [%s] - %s", | |
8bbeb278 AC |
265 | me.name, source_p->name, dlhost, aconf->host, |
266 | creason); | |
54ac8b60 VY |
267 | else |
268 | sendto_one(source_p, | |
269 | ":%s NOTICE %s :[%s] already D-lined by [%s] - %s", | |
8bbeb278 AC |
270 | me.name, source_p->name, dlhost, aconf->host, |
271 | creason); | |
3c7d6fcc | 272 | return; |
54ac8b60 VY |
273 | } |
274 | } | |
212380e3 AC |
275 | } |
276 | ||
7df5fcfb | 277 | rb_set_time(); |
212380e3 AC |
278 | |
279 | aconf = make_conf(); | |
280 | aconf->status = CONF_DLINE; | |
b52c2949 | 281 | aconf->created = rb_current_time(); |
47a03750 | 282 | aconf->host = rb_strdup(dlhost); |
a12ad044 | 283 | aconf->passwd = rb_strdup(reason); |
27f616dd | 284 | aconf->info.oper = operhash_add(get_oper_name(source_p)); |
212380e3 | 285 | |
9319a2e2 KB |
286 | if(strlen(reason) > BANREASONLEN) |
287 | reason[BANREASONLEN] = '\0'; | |
288 | ||
08e8aa7a VY |
289 | /* Look for an oper reason */ |
290 | if((oper_reason = strchr(reason, '|')) != NULL) | |
291 | { | |
292 | *oper_reason = '\0'; | |
293 | oper_reason++; | |
294 | ||
295 | if(!EmptyString(oper_reason)) | |
296 | aconf->spasswd = rb_strdup(oper_reason); | |
297 | } | |
298 | ||
212380e3 AC |
299 | if(tdline_time > 0) |
300 | { | |
e3354945 | 301 | aconf->hold = rb_current_time() + tdline_time; |
212380e3 AC |
302 | add_temp_dline(aconf); |
303 | ||
304 | if(EmptyString(oper_reason)) | |
305 | { | |
61c096aa | 306 | sendto_realops_snomask(SNO_GENERAL, L_ALL, |
8bbeb278 AC |
307 | "%s added temporary %d min. D-Line for [%s] [%s]", |
308 | get_oper_name(source_p), tdline_time / 60, | |
309 | aconf->host, reason); | |
212380e3 | 310 | ilog(L_KLINE, "D %s %d %s %s", |
8bbeb278 | 311 | get_oper_name(source_p), tdline_time / 60, aconf->host, reason); |
212380e3 AC |
312 | } |
313 | else | |
314 | { | |
61c096aa | 315 | sendto_realops_snomask(SNO_GENERAL, L_ALL, |
8bbeb278 AC |
316 | "%s added temporary %d min. D-Line for [%s] [%s|%s]", |
317 | get_oper_name(source_p), tdline_time / 60, | |
318 | aconf->host, reason, oper_reason); | |
212380e3 | 319 | ilog(L_KLINE, "D %s %d %s %s|%s", |
8bbeb278 AC |
320 | get_oper_name(source_p), tdline_time / 60, |
321 | aconf->host, reason, oper_reason); | |
212380e3 AC |
322 | } |
323 | ||
324 | sendto_one(source_p, ":%s NOTICE %s :Added temporary %d min. D-Line for [%s]", | |
325 | me.name, source_p->name, tdline_time / 60, aconf->host); | |
326 | } | |
327 | else | |
328 | { | |
40c1fd47 | 329 | add_conf_by_address(aconf->host, CONF_DLINE, NULL, NULL, aconf); |
8bbeb278 AC |
330 | |
331 | bandb_add(BANDB_DLINE, source_p, aconf->host, NULL, | |
332 | reason, EmptyString(aconf->spasswd) ? NULL : aconf->spasswd, 0); | |
9964e935 AC |
333 | |
334 | if(EmptyString(oper_reason)) | |
335 | { | |
336 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
337 | "%s added D-Line for [%s] [%s]", | |
338 | get_oper_name(source_p), aconf->host, reason); | |
339 | ilog(L_KLINE, "D %s 0 %s %s", | |
340 | get_oper_name(source_p), aconf->host, reason); | |
341 | } | |
342 | else | |
343 | { | |
344 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
345 | "%s added D-Line for [%s] [%s|%s]", | |
346 | get_oper_name(source_p), aconf->host, reason, oper_reason); | |
347 | ilog(L_KLINE, "D %s 0 %s %s|%s", | |
348 | get_oper_name(source_p), | |
349 | aconf->host, reason, oper_reason); | |
350 | } | |
212380e3 | 351 | } |
212380e3 AC |
352 | } |
353 | ||
3c7d6fcc | 354 | static void |
f5cb68d5 | 355 | apply_undline(struct Client *source_p, const char *cidr) |
212380e3 | 356 | { |
8bbeb278 | 357 | char buf[BUFSIZE]; |
f5cb68d5 | 358 | struct ConfItem *aconf; |
212380e3 AC |
359 | |
360 | if(parse_netmask(cidr, NULL, NULL) == HM_HOST) | |
361 | { | |
5366977b | 362 | sendto_one_notice(source_p, ":Invalid D-Line"); |
3c7d6fcc | 363 | return; |
212380e3 AC |
364 | } |
365 | ||
6f3a09ff JT |
366 | aconf = find_exact_conf_by_address(cidr, CONF_DLINE, NULL); |
367 | if(aconf == NULL) | |
368 | { | |
369 | sendto_one_notice(source_p, ":No D-Line for %s", cidr); | |
3c7d6fcc | 370 | return; |
6f3a09ff JT |
371 | } |
372 | ||
f427c8b0 | 373 | rb_strlcpy(buf, aconf->host, sizeof buf); |
6f3a09ff | 374 | if(remove_temp_dline(aconf)) |
212380e3 AC |
375 | { |
376 | sendto_one(source_p, | |
377 | ":%s NOTICE %s :Un-dlined [%s] from temporary D-lines", | |
f5cb68d5 | 378 | me.name, source_p->name, buf); |
212380e3 | 379 | sendto_realops_snomask(SNO_GENERAL, L_ALL, |
8bbeb278 AC |
380 | "%s has removed the temporary D-Line for: [%s]", |
381 | get_oper_name(source_p), buf); | |
6f3a09ff | 382 | ilog(L_KLINE, "UD %s %s", get_oper_name(source_p), buf); |
3c7d6fcc | 383 | return; |
212380e3 AC |
384 | } |
385 | ||
8bbeb278 | 386 | bandb_del(BANDB_DLINE, aconf->host, NULL); |
212380e3 | 387 | |
8bbeb278 AC |
388 | sendto_one(source_p, ":%s NOTICE %s :D-Line for [%s] is removed", me.name, source_p->name, |
389 | aconf->host); | |
390 | sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s has removed the D-Line for: [%s]", | |
391 | get_oper_name(source_p), aconf->host); | |
37f6cc05 JT |
392 | ilog(L_KLINE, "UD %s %s", get_oper_name(source_p), aconf->host); |
393 | delete_one_address_conf(aconf->host, aconf); | |
212380e3 AC |
394 | } |
395 | ||
212380e3 AC |
396 | /* remove_temp_dline() |
397 | * | |
6f3a09ff | 398 | * inputs - confitem to undline |
3c7d6fcc | 399 | * outputs - true if removed, false otherwise. |
212380e3 AC |
400 | * side effects - tries to undline anything that matches |
401 | */ | |
3c7d6fcc | 402 | static bool |
6f3a09ff | 403 | remove_temp_dline(struct ConfItem *aconf) |
212380e3 | 404 | { |
5b96d9a6 | 405 | rb_dlink_node *ptr; |
212380e3 AC |
406 | int i; |
407 | ||
8bbeb278 | 408 | for(i = 0; i < LAST_TEMP_TYPE; i++) |
212380e3 | 409 | { |
5b96d9a6 | 410 | RB_DLINK_FOREACH(ptr, temp_dlines[i].head) |
212380e3 | 411 | { |
8bbeb278 | 412 | if(aconf == ptr->data) |
212380e3 | 413 | { |
555ac41f | 414 | rb_dlinkDestroy(ptr, &temp_dlines[i]); |
212380e3 | 415 | delete_one_address_conf(aconf->host, aconf); |
3c7d6fcc | 416 | return true; |
212380e3 AC |
417 | } |
418 | } | |
419 | } | |
420 | ||
3c7d6fcc | 421 | return false; |
212380e3 | 422 | } |