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Commit | Line | Data |
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212380e3 AC |
1 | /* |
2 | * ircd-ratbox: A slightly useful ircd. | |
3 | * m_kline.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" | |
4562c604 | 29 | #include "match.h" |
212380e3 AC |
30 | #include "ircd.h" |
31 | #include "hostmask.h" | |
32 | #include "numeric.h" | |
212380e3 AC |
33 | #include "s_conf.h" |
34 | #include "s_newconf.h" | |
4016731b | 35 | #include "logger.h" |
212380e3 AC |
36 | #include "send.h" |
37 | #include "hash.h" | |
38 | #include "s_serv.h" | |
39 | #include "msg.h" | |
40 | #include "parse.h" | |
41 | #include "modules.h" | |
35f6f850 | 42 | #include "reject.h" |
8bbeb278 | 43 | #include "bandbi.h" |
27f616dd | 44 | #include "operhash.h" |
212380e3 | 45 | |
eeabf33a EM |
46 | static const char kline_desc[] = "Provides the KLINE facility to ban users via hostmask"; |
47 | ||
3c7d6fcc EM |
48 | static void mo_kline(struct MsgBuf *, struct Client *, struct Client *, int, const char **); |
49 | static void ms_kline(struct MsgBuf *, struct Client *, struct Client *, int, const char **); | |
50 | static void me_kline(struct MsgBuf *, struct Client *, struct Client *, int, const char **); | |
51 | static void mo_unkline(struct MsgBuf *, struct Client *, struct Client *, int, const char **); | |
52 | static void ms_unkline(struct MsgBuf *, struct Client *, struct Client *, int, const char **); | |
53 | static void me_unkline(struct MsgBuf *, struct Client *, struct Client *, int, const char **); | |
212380e3 AC |
54 | |
55 | struct Message kline_msgtab = { | |
7baa37a9 | 56 | "KLINE", 0, 0, 0, 0, |
212380e3 AC |
57 | {mg_unreg, mg_not_oper, {ms_kline, 5}, {ms_kline, 5}, {me_kline, 5}, {mo_kline, 3}} |
58 | }; | |
59 | ||
60 | struct Message unkline_msgtab = { | |
7baa37a9 | 61 | "UNKLINE", 0, 0, 0, 0, |
212380e3 AC |
62 | {mg_unreg, mg_not_oper, {ms_unkline, 4}, {ms_unkline, 4}, {me_unkline, 3}, {mo_unkline, 2}} |
63 | }; | |
64 | ||
65 | mapi_clist_av1 kline_clist[] = { &kline_msgtab, &unkline_msgtab, NULL }; | |
8bbeb278 | 66 | |
f1156bf0 | 67 | DECLARE_MODULE_AV2(kline, NULL, NULL, kline_clist, NULL, NULL, NULL, NULL, kline_desc); |
212380e3 AC |
68 | |
69 | /* Local function prototypes */ | |
3c7d6fcc EM |
70 | static bool find_user_host(struct Client *source_p, const char *userhost, char *user, char *host); |
71 | static bool valid_user_host(struct Client *source_p, const char *user, const char *host); | |
212380e3 AC |
72 | |
73 | static void handle_remote_kline(struct Client *source_p, int tkline_time, | |
8bbeb278 | 74 | const char *user, const char *host, const char *reason); |
212380e3 | 75 | static void apply_kline(struct Client *source_p, struct ConfItem *aconf, |
b52c2949 | 76 | const char *reason, const char *oper_reason); |
212380e3 | 77 | static void apply_tkline(struct Client *source_p, struct ConfItem *aconf, |
b52c2949 | 78 | const char *, const char *, int); |
431a1a27 JT |
79 | static void apply_prop_kline(struct Client *source_p, struct ConfItem *aconf, |
80 | const char *, const char *, int); | |
3c7d6fcc | 81 | static bool already_placed_kline(struct Client *, const char *, const char *, int); |
212380e3 | 82 | |
8bbeb278 | 83 | static void handle_remote_unkline(struct Client *source_p, const char *user, const char *host); |
3ff5a12e | 84 | static void remove_superseded_klines(const char *user, const char *host); |
40a1d446 | 85 | static void remove_permkline_match(struct Client *, struct ConfItem *); |
3c7d6fcc | 86 | static bool remove_temp_kline(struct Client *, struct ConfItem *); |
431a1a27 | 87 | static void remove_prop_kline(struct Client *, struct ConfItem *); |
212380e3 | 88 | |
3ff5a12e EK |
89 | static bool |
90 | is_local_kline(struct ConfItem *aconf) | |
91 | { | |
92 | return aconf->lifetime == 0; | |
93 | } | |
94 | ||
95 | static bool | |
96 | is_temporary_kline(struct ConfItem *aconf) | |
97 | { | |
98 | return aconf->lifetime == 0 && (aconf->flags & CONF_FLAGS_TEMPORARY); | |
99 | } | |
100 | ||
b068a4b5 | 101 | |
212380e3 AC |
102 | /* mo_kline() |
103 | * | |
104 | * parv[1] - temp time or user@host | |
105 | * parv[2] - user@host, "ON", or reason | |
106 | * parv[3] - "ON", reason, or server to target | |
107 | * parv[4] - server to target, or reason | |
108 | * parv[5] - reason | |
109 | */ | |
3c7d6fcc | 110 | static void |
428ca87b | 111 | mo_kline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char **parv) |
212380e3 | 112 | { |
8bbeb278 | 113 | char def[] = "No Reason"; |
212380e3 | 114 | char user[USERLEN + 2]; |
8e1e48e1 | 115 | char host_buf[HOSTLEN + 3], *host = host_buf + 1; |
8bbeb278 | 116 | char *reason = def; |
212380e3 | 117 | char *oper_reason; |
212380e3 AC |
118 | const char *target_server = NULL; |
119 | struct ConfItem *aconf; | |
120 | int tkline_time = 0; | |
121 | int loc = 1; | |
f66f0baa | 122 | bool propagated = ConfigFileEntry.use_propagated_bans; |
212380e3 AC |
123 | |
124 | if(!IsOperK(source_p)) | |
125 | { | |
8bbeb278 | 126 | sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "kline"); |
3c7d6fcc | 127 | return; |
212380e3 AC |
128 | } |
129 | ||
130 | if((tkline_time = valid_temp_time(parv[loc])) >= 0) | |
131 | loc++; | |
132 | /* we just set tkline_time to -1! */ | |
133 | else | |
134 | tkline_time = 0; | |
135 | ||
136 | if(find_user_host(source_p, parv[loc], user, host) == 0) | |
3c7d6fcc | 137 | return; |
212380e3 | 138 | |
8e1e48e1 EK |
139 | if (*host == ':') |
140 | { | |
141 | host--; | |
142 | *host = '0'; | |
143 | } | |
144 | ||
212380e3 AC |
145 | loc++; |
146 | ||
8bbeb278 | 147 | if(parc >= loc + 2 && !irccmp(parv[loc], "ON")) |
212380e3 AC |
148 | { |
149 | if(!IsOperRemoteBan(source_p)) | |
150 | { | |
151 | sendto_one(source_p, form_str(ERR_NOPRIVS), | |
8bbeb278 | 152 | me.name, source_p->name, "remoteban"); |
3c7d6fcc | 153 | return; |
212380e3 AC |
154 | } |
155 | ||
8bbeb278 | 156 | target_server = parv[loc + 1]; |
212380e3 AC |
157 | loc += 2; |
158 | } | |
159 | ||
160 | if(parc <= loc || EmptyString(parv[loc])) | |
161 | { | |
162 | sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS), | |
163 | me.name, source_p->name, "KLINE"); | |
3c7d6fcc | 164 | return; |
212380e3 AC |
165 | } |
166 | ||
167 | reason = LOCAL_COPY(parv[loc]); | |
168 | ||
7d9e8e9d EK |
169 | if(parse_netmask_strict(host, NULL, NULL) == HM_ERROR) |
170 | { | |
171 | sendto_one_notice(source_p, | |
172 | ":[%s@%s] looks like an ill-formed IP K-line, refusing to set it", | |
173 | user, host); | |
174 | return; | |
175 | } | |
176 | ||
212380e3 AC |
177 | if(target_server != NULL) |
178 | { | |
a9227555 | 179 | if (tkline_time) |
180 | sendto_realops_snomask(SNO_GENERAL, L_NETWIDE, | |
181 | "%s is adding a temporary %d min. K-Line for [%s@%s] on %s [%s]", | |
182 | get_oper_name(source_p), tkline_time / 60, user, host, target_server, reason); | |
183 | else | |
184 | sendto_realops_snomask(SNO_GENERAL, L_NETWIDE, | |
185 | "%s is adding a K-Line for [%s@%s] on %s [%s]", | |
186 | get_oper_name(source_p), user, host, target_server, reason); | |
187 | ||
212380e3 | 188 | propagate_generic(source_p, "KLINE", target_server, CAP_KLN, |
8bbeb278 | 189 | "%d %s %s :%s", tkline_time, user, host, reason); |
212380e3 AC |
190 | |
191 | /* If we are sending it somewhere that doesnt include us, stop */ | |
192 | if(!match(target_server, me.name)) | |
3c7d6fcc | 193 | return; |
431a1a27 JT |
194 | |
195 | /* Set as local-only. */ | |
f66f0baa | 196 | propagated = false; |
212380e3 AC |
197 | } |
198 | /* if we have cluster servers, send it to them.. */ | |
431a1a27 | 199 | else if(!propagated && rb_dlink_list_length(&cluster_conf_list) > 0) |
8bbeb278 | 200 | cluster_generic(source_p, "KLINE", |
212380e3 | 201 | (tkline_time > 0) ? SHARED_TKLINE : SHARED_PKLINE, CAP_KLN, |
8bbeb278 | 202 | "%lu %s %s :%s", tkline_time, user, host, reason); |
212380e3 | 203 | |
9319a2e2 | 204 | if(!valid_user_host(source_p, user, host)) |
3c7d6fcc | 205 | return; |
212380e3 | 206 | |
5c2b9eaf JT |
207 | if(!valid_wild_card(user, host)) |
208 | { | |
209 | sendto_one_notice(source_p, | |
210 | ":Please include at least %d non-wildcard " | |
211 | "characters with the user@host", | |
212 | ConfigFileEntry.min_nonwildcard); | |
3c7d6fcc | 213 | return; |
5c2b9eaf JT |
214 | } |
215 | ||
431a1a27 JT |
216 | if(propagated && tkline_time == 0) |
217 | { | |
218 | sendto_one_notice(source_p, ":Cannot set a permanent global ban"); | |
3c7d6fcc | 219 | return; |
431a1a27 JT |
220 | } |
221 | ||
212380e3 | 222 | if(already_placed_kline(source_p, user, host, tkline_time)) |
3c7d6fcc | 223 | return; |
212380e3 | 224 | |
3ff5a12e EK |
225 | if (!propagated) |
226 | remove_superseded_klines(user, host); | |
227 | ||
7df5fcfb | 228 | rb_set_time(); |
212380e3 AC |
229 | aconf = make_conf(); |
230 | aconf->status = CONF_KILL; | |
b52c2949 | 231 | aconf->created = rb_current_time(); |
47a03750 VY |
232 | aconf->host = rb_strdup(host); |
233 | aconf->user = rb_strdup(user); | |
212380e3 | 234 | aconf->port = 0; |
27f616dd | 235 | aconf->info.oper = operhash_add(get_oper_name(source_p)); |
212380e3 | 236 | |
9319a2e2 KB |
237 | if(strlen(reason) > BANREASONLEN) |
238 | reason[BANREASONLEN] = '\0'; | |
239 | ||
212380e3 AC |
240 | /* Look for an oper reason */ |
241 | if((oper_reason = strchr(reason, '|')) != NULL) | |
242 | { | |
243 | *oper_reason = '\0'; | |
244 | oper_reason++; | |
245 | ||
246 | if(!EmptyString(oper_reason)) | |
47a03750 | 247 | aconf->spasswd = rb_strdup(oper_reason); |
212380e3 | 248 | } |
c935336b | 249 | aconf->passwd = rb_strdup(reason); |
212380e3 | 250 | |
431a1a27 JT |
251 | if(propagated) |
252 | apply_prop_kline(source_p, aconf, reason, oper_reason, tkline_time); | |
253 | else if(tkline_time > 0) | |
b52c2949 | 254 | apply_tkline(source_p, aconf, reason, oper_reason, tkline_time); |
212380e3 | 255 | else |
b52c2949 | 256 | apply_kline(source_p, aconf, reason, oper_reason); |
212380e3 | 257 | |
b068a4b5 | 258 | check_one_kline(aconf); |
212380e3 AC |
259 | } |
260 | ||
261 | /* ms_kline() | |
262 | * | |
263 | * parv[1] - server targeted at | |
264 | * parv[2] - tkline time (0 if perm) | |
265 | * parv[3] - user | |
266 | * parv[4] - host | |
267 | * parv[5] - reason | |
268 | */ | |
3c7d6fcc | 269 | static void |
428ca87b | 270 | ms_kline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 AC |
271 | { |
272 | int tkline_time = atoi(parv[2]); | |
273 | ||
274 | /* 1.5-3 and earlier contains a bug that allows remote klines to be | |
275 | * sent with an empty reason field. This is a protocol violation, | |
276 | * but its not worth dropping the link over.. --anfl | |
277 | */ | |
278 | if(parc < 6 || EmptyString(parv[5])) | |
3c7d6fcc | 279 | return; |
212380e3 AC |
280 | |
281 | propagate_generic(source_p, "KLINE", parv[1], CAP_KLN, | |
8bbeb278 | 282 | "%d %s %s :%s", tkline_time, parv[3], parv[4], parv[5]); |
212380e3 AC |
283 | |
284 | if(!match(parv[1], me.name)) | |
3c7d6fcc | 285 | return; |
212380e3 AC |
286 | |
287 | if(!IsPerson(source_p)) | |
3c7d6fcc | 288 | return; |
212380e3 AC |
289 | |
290 | handle_remote_kline(source_p, tkline_time, parv[3], parv[4], parv[5]); | |
212380e3 AC |
291 | } |
292 | ||
3c7d6fcc | 293 | static void |
428ca87b | 294 | me_kline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 AC |
295 | { |
296 | /* <tkline_time> <user> <host> :<reason> */ | |
297 | if(!IsPerson(source_p)) | |
3c7d6fcc | 298 | return; |
212380e3 AC |
299 | |
300 | handle_remote_kline(source_p, atoi(parv[1]), parv[2], parv[3], parv[4]); | |
212380e3 AC |
301 | } |
302 | ||
303 | static void | |
304 | handle_remote_kline(struct Client *source_p, int tkline_time, | |
8bbeb278 | 305 | const char *user, const char *host, const char *kreason) |
212380e3 | 306 | { |
212380e3 AC |
307 | char *reason = LOCAL_COPY(kreason); |
308 | struct ConfItem *aconf = NULL; | |
309 | char *oper_reason; | |
310 | ||
9319a2e2 | 311 | if(!valid_user_host(source_p, user, host)) |
212380e3 AC |
312 | return; |
313 | ||
5c2b9eaf JT |
314 | if(!valid_wild_card(user, host)) |
315 | { | |
316 | sendto_one_notice(source_p, | |
317 | ":Please include at least %d non-wildcard " | |
318 | "characters with the user@host", | |
319 | ConfigFileEntry.min_nonwildcard); | |
803ce385 | 320 | return; |
5c2b9eaf JT |
321 | } |
322 | ||
212380e3 AC |
323 | if(already_placed_kline(source_p, user, host, tkline_time)) |
324 | return; | |
325 | ||
3ff5a12e EK |
326 | remove_superseded_klines(user, host); |
327 | ||
212380e3 AC |
328 | aconf = make_conf(); |
329 | ||
330 | aconf->status = CONF_KILL; | |
b52c2949 | 331 | aconf->created = rb_current_time(); |
47a03750 VY |
332 | aconf->user = rb_strdup(user); |
333 | aconf->host = rb_strdup(host); | |
27f616dd | 334 | aconf->info.oper = operhash_add(get_oper_name(source_p)); |
212380e3 | 335 | |
9319a2e2 KB |
336 | if(strlen(reason) > BANREASONLEN) |
337 | reason[BANREASONLEN] = '\0'; | |
338 | ||
212380e3 AC |
339 | /* Look for an oper reason */ |
340 | if((oper_reason = strchr(reason, '|')) != NULL) | |
341 | { | |
342 | *oper_reason = '\0'; | |
343 | oper_reason++; | |
344 | ||
345 | if(!EmptyString(oper_reason)) | |
47a03750 | 346 | aconf->spasswd = rb_strdup(oper_reason); |
212380e3 | 347 | } |
c935336b | 348 | aconf->passwd = rb_strdup(reason); |
212380e3 | 349 | |
212380e3 | 350 | if(tkline_time > 0) |
b52c2949 | 351 | apply_tkline(source_p, aconf, reason, oper_reason, tkline_time); |
212380e3 | 352 | else |
b52c2949 | 353 | apply_kline(source_p, aconf, reason, oper_reason); |
212380e3 | 354 | |
b068a4b5 | 355 | check_one_kline(aconf); |
212380e3 AC |
356 | } |
357 | ||
358 | /* mo_unkline() | |
359 | * | |
360 | * parv[1] - kline to remove | |
361 | * parv[2] - optional "ON" | |
362 | * parv[3] - optional target server | |
363 | */ | |
3c7d6fcc | 364 | static void |
428ca87b | 365 | mo_unkline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 AC |
366 | { |
367 | const char *user; | |
368 | char *host; | |
369 | char splat[] = "*"; | |
370 | char *h = LOCAL_COPY(parv[1]); | |
40a1d446 | 371 | struct ConfItem *aconf; |
f66f0baa | 372 | bool propagated = true; |
212380e3 AC |
373 | |
374 | if(!IsOperUnkline(source_p)) | |
375 | { | |
8bbeb278 | 376 | sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "unkline"); |
3c7d6fcc | 377 | return; |
212380e3 AC |
378 | } |
379 | ||
380 | if((host = strchr(h, '@')) || *h == '*' || strchr(h, '.') || strchr(h, ':')) | |
381 | { | |
382 | /* Explicit user@host mask given */ | |
383 | ||
384 | if(host) /* Found user@host */ | |
385 | { | |
386 | *host++ = '\0'; | |
387 | ||
388 | /* check for @host */ | |
389 | if(*h) | |
390 | user = h; | |
391 | else | |
392 | user = splat; | |
393 | ||
394 | /* check for user@ */ | |
395 | if(!*host) | |
396 | host = splat; | |
397 | } | |
398 | else | |
399 | { | |
400 | user = splat; /* no @ found, assume its *@somehost */ | |
401 | host = h; | |
402 | } | |
403 | } | |
404 | else | |
405 | { | |
5366977b | 406 | sendto_one_notice(source_p, ":Invalid parameters"); |
3c7d6fcc | 407 | return; |
212380e3 AC |
408 | } |
409 | ||
410 | /* possible remote kline.. */ | |
411 | if((parc > 3) && (irccmp(parv[2], "ON") == 0)) | |
412 | { | |
413 | if(!IsOperRemoteBan(source_p)) | |
414 | { | |
415 | sendto_one(source_p, form_str(ERR_NOPRIVS), | |
8bbeb278 | 416 | me.name, source_p->name, "remoteban"); |
3c7d6fcc | 417 | return; |
212380e3 AC |
418 | } |
419 | ||
a9227555 | 420 | sendto_realops_snomask(SNO_GENERAL, L_NETWIDE, "%s is removing the K-Line for [%s@%s] on %s", |
421 | get_oper_name(source_p), user, host, parv[3]); | |
422 | ||
8bbeb278 | 423 | propagate_generic(source_p, "UNKLINE", parv[3], CAP_UNKLN, "%s %s", user, host); |
212380e3 AC |
424 | |
425 | if(match(parv[3], me.name) == 0) | |
3c7d6fcc | 426 | return; |
431a1a27 | 427 | |
f66f0baa | 428 | propagated = false; |
212380e3 | 429 | } |
431a1a27 JT |
430 | |
431 | aconf = find_exact_conf_by_address(host, CONF_KILL, user); | |
432 | ||
433 | /* No clustering for removing a propagated kline */ | |
434 | if(propagated && (aconf == NULL || !aconf->lifetime) && | |
435 | rb_dlink_list_length(&cluster_conf_list) > 0) | |
212380e3 AC |
436 | cluster_generic(source_p, "UNKLINE", SHARED_UNKLINE, CAP_UNKLN, |
437 | "%s %s", user, host); | |
438 | ||
3ff5a12e EK |
439 | bool removed_kline = false; |
440 | ||
441 | while (aconf = find_exact_conf_by_address_filtered(host, CONF_KILL, user, is_local_kline), aconf != NULL) | |
40a1d446 | 442 | { |
3ff5a12e EK |
443 | removed_kline = true; |
444 | ||
445 | if(remove_temp_kline(source_p, aconf)) | |
446 | continue; | |
447 | ||
448 | remove_permkline_match(source_p, aconf); | |
40a1d446 | 449 | } |
55abcbb2 | 450 | |
3ff5a12e EK |
451 | aconf = find_exact_conf_by_address(host, CONF_KILL, user); |
452 | if (aconf) | |
431a1a27 | 453 | { |
3ff5a12e | 454 | if (propagated) |
431a1a27 JT |
455 | remove_prop_kline(source_p, aconf); |
456 | else | |
457 | sendto_one_notice(source_p, ":Cannot remove global K-Line %s@%s on specific servers", user, host); | |
431a1a27 | 458 | } |
3ff5a12e EK |
459 | else if (!removed_kline) |
460 | { | |
461 | sendto_one_notice(source_p, ":No K-Line for %s@%s", user, host); | |
462 | } | |
212380e3 AC |
463 | } |
464 | ||
465 | /* ms_unkline() | |
466 | * | |
467 | * parv[1] - target server | |
468 | * parv[2] - user to unkline | |
469 | * parv[3] - host to unkline | |
470 | */ | |
3c7d6fcc | 471 | static void |
428ca87b | 472 | ms_unkline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 | 473 | { |
8bbeb278 AC |
474 | /* parv[0] parv[1] parv[2] parv[3] |
475 | * oper target server user host */ | |
476 | propagate_generic(source_p, "UNKLINE", parv[1], CAP_UNKLN, "%s %s", parv[2], parv[3]); | |
212380e3 AC |
477 | |
478 | if(!match(parv[1], me.name)) | |
3c7d6fcc | 479 | return; |
212380e3 AC |
480 | |
481 | if(!IsPerson(source_p)) | |
3c7d6fcc | 482 | return; |
212380e3 AC |
483 | |
484 | handle_remote_unkline(source_p, parv[2], parv[3]); | |
212380e3 AC |
485 | } |
486 | ||
3c7d6fcc | 487 | static void |
428ca87b | 488 | me_unkline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 AC |
489 | { |
490 | /* user host */ | |
491 | if(!IsPerson(source_p)) | |
3c7d6fcc | 492 | return; |
212380e3 AC |
493 | |
494 | handle_remote_unkline(source_p, parv[1], parv[2]); | |
212380e3 AC |
495 | } |
496 | ||
497 | static void | |
498 | handle_remote_unkline(struct Client *source_p, const char *user, const char *host) | |
499 | { | |
40a1d446 | 500 | struct ConfItem *aconf; |
3ff5a12e | 501 | bool removed_kline = false; |
40a1d446 | 502 | |
3ff5a12e | 503 | while (aconf = find_exact_conf_by_address_filtered(host, CONF_KILL, user, is_local_kline), aconf != NULL) |
431a1a27 | 504 | { |
3ff5a12e | 505 | removed_kline = true; |
40a1d446 | 506 | |
3ff5a12e EK |
507 | if(remove_temp_kline(source_p, aconf)) |
508 | continue; | |
212380e3 | 509 | |
3ff5a12e EK |
510 | remove_permkline_match(source_p, aconf); |
511 | } | |
512 | ||
513 | if (find_exact_conf_by_address(host, CONF_KILL, user)) | |
514 | sendto_one_notice(source_p, ":Cannot remove global K-Line %s@%s on specific servers", user, host); | |
515 | else if (!removed_kline) | |
516 | sendto_one_notice(source_p, ":No K-Line for %s@%s", user, host); | |
212380e3 AC |
517 | } |
518 | ||
519 | /* apply_kline() | |
520 | * | |
55abcbb2 | 521 | * inputs - |
212380e3 AC |
522 | * output - NONE |
523 | * side effects - kline as given, is added to the hashtable | |
524 | * and conf file | |
525 | */ | |
526 | static void | |
527 | apply_kline(struct Client *source_p, struct ConfItem *aconf, | |
b52c2949 | 528 | const char *reason, const char *oper_reason) |
212380e3 | 529 | { |
40c1fd47 | 530 | add_conf_by_address(aconf->host, CONF_KILL, aconf->user, NULL, aconf); |
8bbeb278 AC |
531 | bandb_add(BANDB_KLINE, source_p, aconf->user, aconf->host, |
532 | reason, EmptyString(oper_reason) ? NULL : oper_reason, 0); | |
9964e935 AC |
533 | |
534 | /* no oper reason.. */ | |
535 | if(EmptyString(oper_reason)) | |
536 | { | |
537 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
538 | "%s added K-Line for [%s@%s] [%s]", | |
539 | get_oper_name(source_p), aconf->user, aconf->host, reason); | |
540 | ilog(L_KLINE, "K %s 0 %s %s %s", | |
541 | get_oper_name(source_p), aconf->user, aconf->host, reason); | |
542 | } | |
543 | else | |
544 | { | |
545 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
546 | "%s added K-Line for [%s@%s] [%s|%s]", | |
547 | get_oper_name(source_p), aconf->user, aconf->host, | |
548 | reason, oper_reason); | |
549 | ilog(L_KLINE, "K %s 0 %s %s %s|%s", | |
550 | get_oper_name(source_p), aconf->user, aconf->host, reason, oper_reason); | |
551 | } | |
552 | ||
553 | sendto_one_notice(source_p, ":Added K-Line [%s@%s]", | |
554 | aconf->user, aconf->host); | |
212380e3 AC |
555 | } |
556 | ||
557 | /* apply_tkline() | |
558 | * | |
559 | * inputs - | |
560 | * output - NONE | |
561 | * side effects - tkline as given is placed | |
562 | */ | |
563 | static void | |
564 | apply_tkline(struct Client *source_p, struct ConfItem *aconf, | |
b52c2949 | 565 | const char *reason, const char *oper_reason, int tkline_time) |
212380e3 | 566 | { |
e3354945 | 567 | aconf->hold = rb_current_time() + tkline_time; |
212380e3 AC |
568 | add_temp_kline(aconf); |
569 | ||
570 | /* no oper reason.. */ | |
571 | if(EmptyString(oper_reason)) | |
572 | { | |
573 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
8bbeb278 AC |
574 | "%s added temporary %d min. K-Line for [%s@%s] [%s]", |
575 | get_oper_name(source_p), tkline_time / 60, | |
576 | aconf->user, aconf->host, reason); | |
212380e3 | 577 | ilog(L_KLINE, "K %s %d %s %s %s", |
8bbeb278 | 578 | get_oper_name(source_p), tkline_time / 60, aconf->user, aconf->host, reason); |
212380e3 AC |
579 | } |
580 | else | |
581 | { | |
582 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
8bbeb278 AC |
583 | "%s added temporary %d min. K-Line for [%s@%s] [%s|%s]", |
584 | get_oper_name(source_p), tkline_time / 60, | |
585 | aconf->user, aconf->host, reason, oper_reason); | |
212380e3 | 586 | ilog(L_KLINE, "K %s %d %s %s %s|%s", |
8bbeb278 AC |
587 | get_oper_name(source_p), tkline_time / 60, |
588 | aconf->user, aconf->host, reason, oper_reason); | |
212380e3 AC |
589 | } |
590 | ||
591 | sendto_one_notice(source_p, ":Added temporary %d min. K-Line [%s@%s]", | |
592 | tkline_time / 60, aconf->user, aconf->host); | |
593 | } | |
594 | ||
431a1a27 JT |
595 | static void |
596 | apply_prop_kline(struct Client *source_p, struct ConfItem *aconf, | |
597 | const char *reason, const char *oper_reason, int tkline_time) | |
598 | { | |
431a1a27 JT |
599 | aconf->flags |= CONF_FLAGS_MYOPER | CONF_FLAGS_TEMPORARY; |
600 | aconf->hold = rb_current_time() + tkline_time; | |
601 | aconf->lifetime = aconf->hold; | |
602 | ||
3cbbfb25 | 603 | replace_old_ban(aconf); |
431a1a27 JT |
604 | |
605 | rb_dlinkAddAlloc(aconf, &prop_bans); | |
606 | add_conf_by_address(aconf->host, CONF_KILL, aconf->user, NULL, aconf); | |
607 | ||
608 | /* no oper reason.. */ | |
609 | if(EmptyString(oper_reason)) | |
610 | { | |
611 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
612 | "%s added global %d min. K-Line for [%s@%s] [%s]", | |
613 | get_oper_name(source_p), tkline_time / 60, | |
614 | aconf->user, aconf->host, reason); | |
615 | ilog(L_KLINE, "K %s %d %s %s %s", | |
616 | get_oper_name(source_p), tkline_time / 60, aconf->user, aconf->host, reason); | |
617 | } | |
618 | else | |
619 | { | |
620 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
621 | "%s added global %d min. K-Line for [%s@%s] [%s|%s]", | |
622 | get_oper_name(source_p), tkline_time / 60, | |
623 | aconf->user, aconf->host, reason, oper_reason); | |
624 | ilog(L_KLINE, "K %s %d %s %s %s|%s", | |
625 | get_oper_name(source_p), tkline_time / 60, | |
626 | aconf->user, aconf->host, reason, oper_reason); | |
627 | } | |
628 | ||
629 | sendto_one_notice(source_p, ":Added global %d min. K-Line [%s@%s]", | |
630 | tkline_time / 60, aconf->user, aconf->host); | |
631 | ||
632 | sendto_server(NULL, NULL, CAP_BAN|CAP_TS6, NOCAPS, | |
cedb7d05 | 633 | ":%s BAN K %s %s %lu %d %d * :%s%s%s", |
431a1a27 JT |
634 | source_p->id, aconf->user, aconf->host, |
635 | (unsigned long)aconf->created, | |
636 | (int)(aconf->hold - aconf->created), | |
637 | (int)(aconf->lifetime - aconf->created), | |
638 | reason, | |
639 | oper_reason ? "|" : "", | |
640 | oper_reason ? oper_reason : ""); | |
641 | } | |
642 | ||
212380e3 | 643 | /* find_user_host() |
55abcbb2 | 644 | * |
212380e3 | 645 | * inputs - client placing kline, user@host, user buffer, host buffer |
3c7d6fcc | 646 | * output - false if not ok to kline, true to kline i.e. if valid user host |
212380e3 AC |
647 | * side effects - |
648 | */ | |
3c7d6fcc | 649 | static bool |
212380e3 AC |
650 | find_user_host(struct Client *source_p, const char *userhost, char *luser, char *lhost) |
651 | { | |
652 | char *hostp; | |
653 | ||
654 | hostp = strchr(userhost, '@'); | |
8bbeb278 | 655 | |
212380e3 AC |
656 | if(hostp != NULL) /* I'm a little user@host */ |
657 | { | |
658 | *(hostp++) = '\0'; /* short and squat */ | |
659 | if(*userhost) | |
f427c8b0 | 660 | rb_strlcpy(luser, userhost, USERLEN + 1); /* here is my user */ |
212380e3 AC |
661 | else |
662 | strcpy(luser, "*"); | |
663 | if(*hostp) | |
f427c8b0 | 664 | rb_strlcpy(lhost, hostp, HOSTLEN + 1); /* here is my host */ |
212380e3 AC |
665 | else |
666 | strcpy(lhost, "*"); | |
8bbeb278 | 667 | } |
212380e3 AC |
668 | else |
669 | { | |
670 | /* no '@', no '.', so its not a user@host or host, therefore | |
671 | * its a nick, which support was removed for. | |
672 | */ | |
673 | if(strchr(userhost, '.') == NULL && strchr(userhost, ':') == NULL) | |
af0ba24b JT |
674 | { |
675 | sendto_one_notice(source_p, ":K-Line must be a user@host or host"); | |
3c7d6fcc | 676 | return false; |
af0ba24b | 677 | } |
212380e3 AC |
678 | |
679 | luser[0] = '*'; /* no @ found, assume its *@somehost */ | |
680 | luser[1] = '\0'; | |
f427c8b0 | 681 | rb_strlcpy(lhost, userhost, HOSTLEN + 1); |
212380e3 AC |
682 | } |
683 | ||
2b843a5b JT |
684 | /* would break the protocol */ |
685 | if (*luser == ':' || *lhost == ':') | |
686 | { | |
687 | sendto_one_notice(source_p, ":Invalid K-Line"); | |
3c7d6fcc | 688 | return false; |
2b843a5b JT |
689 | } |
690 | ||
3c7d6fcc | 691 | return true; |
212380e3 AC |
692 | } |
693 | ||
694 | /* valid_user_host() | |
695 | * | |
696 | * inputs - user buffer, host buffer | |
3c7d6fcc | 697 | * output - false if invalid, true if valid |
212380e3 AC |
698 | * side effects - |
699 | */ | |
3c7d6fcc | 700 | static bool |
212380e3 AC |
701 | valid_user_host(struct Client *source_p, const char *luser, const char *lhost) |
702 | { | |
8bbeb278 AC |
703 | /* # is invalid, as are '!' (n!u@h kline) and '@' (u@@h kline) */ |
704 | if(strchr(lhost, '#') || strchr(luser, '#') || strchr(luser, '!') || strchr(lhost, '@')) | |
212380e3 AC |
705 | { |
706 | sendto_one_notice(source_p, ":Invalid K-Line"); | |
3c7d6fcc | 707 | return false; |
212380e3 AC |
708 | } |
709 | ||
3c7d6fcc | 710 | return true; |
212380e3 AC |
711 | } |
712 | ||
212380e3 AC |
713 | /* already_placed_kline() |
714 | * | |
715 | * inputs - source to notify, user@host to check, tkline time | |
3c7d6fcc EM |
716 | * outputs - true if a perm kline or a tkline when a tkline is being |
717 | * set exists, else false | |
212380e3 AC |
718 | * side effects - notifies source_p kline exists |
719 | */ | |
720 | /* Note: This currently works if the new K-line is a special case of an | |
721 | * existing K-line, but not the other way round. To do that we would | |
722 | * have to walk the hash and check every existing K-line. -A1kmm. | |
723 | */ | |
3c7d6fcc | 724 | static bool |
212380e3 AC |
725 | already_placed_kline(struct Client *source_p, const char *luser, const char *lhost, int tkline) |
726 | { | |
7f27e316 | 727 | const char *reason, *p; |
e7046ee5 | 728 | struct rb_sockaddr_storage iphost, *piphost; |
212380e3 | 729 | struct ConfItem *aconf; |
8bbeb278 | 730 | int t, bits; |
7f27e316 JT |
731 | |
732 | aconf = find_exact_conf_by_address(lhost, CONF_KILL, luser); | |
8bbeb278 | 733 | if(aconf == NULL && ConfigFileEntry.non_redundant_klines) |
212380e3 | 734 | { |
7f27e316 | 735 | bits = 0; |
7d9e8e9d EK |
736 | t = parse_netmask_strict(lhost, &iphost, &bits); |
737 | piphost = &iphost; | |
738 | if (t == HM_IPV4) | |
739 | t = AF_INET; | |
740 | else if (t == HM_IPV6) | |
741 | t = AF_INET6; | |
212380e3 AC |
742 | else |
743 | piphost = NULL; | |
744 | ||
8bbeb278 AC |
745 | aconf = find_conf_by_address(lhost, NULL, NULL, (struct sockaddr *) piphost, |
746 | CONF_KILL, t, luser, NULL); | |
747 | if(aconf != NULL) | |
212380e3 | 748 | { |
7f27e316 JT |
749 | /* The above was really a lookup of a single IP, |
750 | * so check if the new kline is wider than the | |
751 | * existing one. | |
752 | * -- jilles | |
753 | */ | |
754 | p = strchr(aconf->host, '/'); | |
8bbeb278 | 755 | if(bits > 0 && (p == NULL || bits < atoi(p + 1))) |
7f27e316 JT |
756 | aconf = NULL; |
757 | } | |
758 | } | |
3ff5a12e EK |
759 | |
760 | if (aconf == NULL) | |
761 | return false; | |
762 | ||
763 | /* allow klines to be duplicated by longer ones */ | |
764 | if ((aconf->flags & CONF_FLAGS_TEMPORARY) && | |
765 | (tkline == 0 || tkline > aconf->hold - rb_current_time())) | |
766 | return false; | |
767 | ||
768 | reason = aconf->passwd ? aconf->passwd : "<No Reason>"; | |
769 | ||
770 | sendto_one_notice(source_p, | |
771 | ":[%s@%s] already K-Lined by [%s@%s] - %s", | |
772 | luser, lhost, aconf->user, aconf->host, reason); | |
773 | return true; | |
774 | } | |
775 | ||
776 | static void | |
777 | remove_superseded_klines(const char *user, const char *host) | |
778 | { | |
779 | struct ConfItem *aconf; | |
780 | ||
781 | while (aconf = find_exact_conf_by_address_filtered(host, CONF_KILL, user, is_temporary_kline), aconf != NULL) | |
7f27e316 | 782 | { |
3ff5a12e EK |
783 | rb_dlink_node *ptr; |
784 | int i; | |
7f27e316 | 785 | |
3ff5a12e EK |
786 | for (i = 0; i < LAST_TEMP_TYPE; i++) |
787 | { | |
788 | RB_DLINK_FOREACH(ptr, temp_klines[i].head) | |
789 | { | |
790 | if (aconf == ptr->data) | |
791 | { | |
792 | rb_dlinkDestroy(ptr, &temp_klines[i]); | |
793 | delete_one_address_conf(aconf->host, aconf); | |
794 | break; | |
795 | } | |
796 | } | |
212380e3 AC |
797 | } |
798 | } | |
212380e3 AC |
799 | } |
800 | ||
801 | /* remove_permkline_match() | |
802 | * | |
803 | * hunts for a permanent kline, and removes it. | |
804 | */ | |
805 | static void | |
40a1d446 | 806 | remove_permkline_match(struct Client *source_p, struct ConfItem *aconf) |
212380e3 | 807 | { |
8bbeb278 | 808 | sendto_one_notice(source_p, ":K-Line for [%s@%s] is removed", aconf->user, aconf->host); |
212380e3 AC |
809 | |
810 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
8bbeb278 AC |
811 | "%s has removed the K-Line for: [%s@%s]", |
812 | get_oper_name(source_p), aconf->user, aconf->host); | |
212380e3 | 813 | |
8bbeb278 | 814 | ilog(L_KLINE, "UK %s %s %s", get_oper_name(source_p), aconf->user, aconf->host); |
40a1d446 | 815 | |
54ac8b60 | 816 | remove_reject_mask(aconf->user, aconf->host); |
8bbeb278 | 817 | bandb_del(BANDB_KLINE, aconf->user, aconf->host); |
40a1d446 | 818 | delete_one_address_conf(aconf->host, aconf); |
212380e3 AC |
819 | } |
820 | ||
212380e3 AC |
821 | /* remove_temp_kline() |
822 | * | |
823 | * inputs - username, hostname to unkline | |
824 | * outputs - | |
825 | * side effects - tries to unkline anything that matches | |
826 | */ | |
3c7d6fcc | 827 | static bool |
d922dded | 828 | remove_temp_kline(struct Client *source_p, struct ConfItem *aconf) |
212380e3 | 829 | { |
5b96d9a6 | 830 | rb_dlink_node *ptr; |
212380e3 AC |
831 | int i; |
832 | ||
8bbeb278 | 833 | for(i = 0; i < LAST_TEMP_TYPE; i++) |
212380e3 | 834 | { |
5b96d9a6 | 835 | RB_DLINK_FOREACH(ptr, temp_klines[i].head) |
212380e3 | 836 | { |
8bbeb278 | 837 | if(aconf == ptr->data) |
212380e3 | 838 | { |
d922dded | 839 | sendto_one_notice(source_p, |
8bbeb278 AC |
840 | ":Un-klined [%s@%s] from temporary k-lines", |
841 | aconf->user, aconf->host); | |
d922dded | 842 | sendto_realops_snomask(SNO_GENERAL, L_ALL, |
8bbeb278 AC |
843 | "%s has removed the temporary K-Line for: [%s@%s]", |
844 | get_oper_name(source_p), aconf->user, | |
845 | aconf->host); | |
d922dded JT |
846 | |
847 | ilog(L_KLINE, "UK %s %s %s", | |
8bbeb278 | 848 | get_oper_name(source_p), aconf->user, aconf->host); |
555ac41f | 849 | rb_dlinkDestroy(ptr, &temp_klines[i]); |
54ac8b60 | 850 | remove_reject_mask(aconf->user, aconf->host); |
40a1d446 | 851 | delete_one_address_conf(aconf->host, aconf); |
3c7d6fcc | 852 | return true; |
212380e3 | 853 | } |
212380e3 AC |
854 | } |
855 | } | |
856 | ||
3c7d6fcc | 857 | return false; |
212380e3 | 858 | } |
431a1a27 JT |
859 | |
860 | static void | |
861 | remove_prop_kline(struct Client *source_p, struct ConfItem *aconf) | |
862 | { | |
863 | rb_dlink_node *ptr; | |
483987a4 | 864 | time_t now; |
431a1a27 JT |
865 | |
866 | ptr = rb_dlinkFind(aconf, &prop_bans); | |
867 | if (!ptr) | |
868 | return; | |
869 | sendto_one_notice(source_p, | |
870 | ":Un-klined [%s@%s] from global k-lines", | |
871 | aconf->user, aconf->host); | |
872 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
873 | "%s has removed the global K-Line for: [%s@%s]", | |
874 | get_oper_name(source_p), aconf->user, | |
875 | aconf->host); | |
876 | ||
877 | ilog(L_KLINE, "UK %s %s %s", | |
878 | get_oper_name(source_p), aconf->user, aconf->host); | |
483987a4 JT |
879 | now = rb_current_time(); |
880 | if(aconf->created < now) | |
881 | aconf->created = now; | |
431a1a27 JT |
882 | else |
883 | aconf->created++; | |
cedb7d05 | 884 | aconf->hold = aconf->created; |
431a1a27 JT |
885 | operhash_delete(aconf->info.oper); |
886 | aconf->info.oper = operhash_add(get_oper_name(source_p)); | |
887 | aconf->flags |= CONF_FLAGS_MYOPER | CONF_FLAGS_TEMPORARY; | |
888 | sendto_server(NULL, NULL, CAP_BAN|CAP_TS6, NOCAPS, | |
cedb7d05 | 889 | ":%s BAN K %s %s %lu %d %d * :*", |
431a1a27 JT |
890 | source_p->id, aconf->user, aconf->host, |
891 | (unsigned long)aconf->created, | |
892 | 0, | |
893 | (int)(aconf->lifetime - aconf->created)); | |
894 | remove_reject_mask(aconf->user, aconf->host); | |
483987a4 | 895 | deactivate_conf(aconf, ptr, now); |
431a1a27 | 896 | } |