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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]); | |
5a3e9982 JP |
168 | if(strlen(reason) > BANREASONLEN) |
169 | { | |
170 | sendto_one_notice(source_p, ":K-Line reason exceeds %d characters", BANREASONLEN); | |
171 | return; | |
172 | } | |
212380e3 | 173 | |
7d9e8e9d EK |
174 | if(parse_netmask_strict(host, NULL, NULL) == HM_ERROR) |
175 | { | |
176 | sendto_one_notice(source_p, | |
177 | ":[%s@%s] looks like an ill-formed IP K-line, refusing to set it", | |
178 | user, host); | |
179 | return; | |
180 | } | |
181 | ||
212380e3 AC |
182 | if(target_server != NULL) |
183 | { | |
a9227555 | 184 | if (tkline_time) |
185 | sendto_realops_snomask(SNO_GENERAL, L_NETWIDE, | |
186 | "%s is adding a temporary %d min. K-Line for [%s@%s] on %s [%s]", | |
187 | get_oper_name(source_p), tkline_time / 60, user, host, target_server, reason); | |
188 | else | |
189 | sendto_realops_snomask(SNO_GENERAL, L_NETWIDE, | |
190 | "%s is adding a K-Line for [%s@%s] on %s [%s]", | |
191 | get_oper_name(source_p), user, host, target_server, reason); | |
192 | ||
212380e3 | 193 | propagate_generic(source_p, "KLINE", target_server, CAP_KLN, |
8bbeb278 | 194 | "%d %s %s :%s", tkline_time, user, host, reason); |
212380e3 AC |
195 | |
196 | /* If we are sending it somewhere that doesnt include us, stop */ | |
197 | if(!match(target_server, me.name)) | |
3c7d6fcc | 198 | return; |
431a1a27 JT |
199 | |
200 | /* Set as local-only. */ | |
f66f0baa | 201 | propagated = false; |
212380e3 AC |
202 | } |
203 | /* if we have cluster servers, send it to them.. */ | |
431a1a27 | 204 | else if(!propagated && rb_dlink_list_length(&cluster_conf_list) > 0) |
8bbeb278 | 205 | cluster_generic(source_p, "KLINE", |
212380e3 | 206 | (tkline_time > 0) ? SHARED_TKLINE : SHARED_PKLINE, CAP_KLN, |
8bbeb278 | 207 | "%lu %s %s :%s", tkline_time, user, host, reason); |
212380e3 | 208 | |
9319a2e2 | 209 | if(!valid_user_host(source_p, user, host)) |
3c7d6fcc | 210 | return; |
212380e3 | 211 | |
5c2b9eaf JT |
212 | if(!valid_wild_card(user, host)) |
213 | { | |
214 | sendto_one_notice(source_p, | |
215 | ":Please include at least %d non-wildcard " | |
216 | "characters with the user@host", | |
217 | ConfigFileEntry.min_nonwildcard); | |
3c7d6fcc | 218 | return; |
5c2b9eaf JT |
219 | } |
220 | ||
431a1a27 JT |
221 | if(propagated && tkline_time == 0) |
222 | { | |
223 | sendto_one_notice(source_p, ":Cannot set a permanent global ban"); | |
3c7d6fcc | 224 | return; |
431a1a27 JT |
225 | } |
226 | ||
212380e3 | 227 | if(already_placed_kline(source_p, user, host, tkline_time)) |
3c7d6fcc | 228 | return; |
212380e3 | 229 | |
3ff5a12e EK |
230 | if (!propagated) |
231 | remove_superseded_klines(user, host); | |
232 | ||
7df5fcfb | 233 | rb_set_time(); |
212380e3 AC |
234 | aconf = make_conf(); |
235 | aconf->status = CONF_KILL; | |
b52c2949 | 236 | aconf->created = rb_current_time(); |
47a03750 VY |
237 | aconf->host = rb_strdup(host); |
238 | aconf->user = rb_strdup(user); | |
212380e3 | 239 | aconf->port = 0; |
27f616dd | 240 | aconf->info.oper = operhash_add(get_oper_name(source_p)); |
212380e3 AC |
241 | |
242 | /* Look for an oper reason */ | |
243 | if((oper_reason = strchr(reason, '|')) != NULL) | |
244 | { | |
245 | *oper_reason = '\0'; | |
246 | oper_reason++; | |
247 | ||
248 | if(!EmptyString(oper_reason)) | |
47a03750 | 249 | aconf->spasswd = rb_strdup(oper_reason); |
212380e3 | 250 | } |
c935336b | 251 | aconf->passwd = rb_strdup(reason); |
212380e3 | 252 | |
431a1a27 JT |
253 | if(propagated) |
254 | apply_prop_kline(source_p, aconf, reason, oper_reason, tkline_time); | |
255 | else if(tkline_time > 0) | |
b52c2949 | 256 | apply_tkline(source_p, aconf, reason, oper_reason, tkline_time); |
212380e3 | 257 | else |
b52c2949 | 258 | apply_kline(source_p, aconf, reason, oper_reason); |
212380e3 | 259 | |
b068a4b5 | 260 | check_one_kline(aconf); |
212380e3 AC |
261 | } |
262 | ||
263 | /* ms_kline() | |
264 | * | |
265 | * parv[1] - server targeted at | |
266 | * parv[2] - tkline time (0 if perm) | |
267 | * parv[3] - user | |
268 | * parv[4] - host | |
269 | * parv[5] - reason | |
270 | */ | |
3c7d6fcc | 271 | static void |
428ca87b | 272 | ms_kline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 AC |
273 | { |
274 | int tkline_time = atoi(parv[2]); | |
275 | ||
276 | /* 1.5-3 and earlier contains a bug that allows remote klines to be | |
277 | * sent with an empty reason field. This is a protocol violation, | |
278 | * but its not worth dropping the link over.. --anfl | |
279 | */ | |
280 | if(parc < 6 || EmptyString(parv[5])) | |
3c7d6fcc | 281 | return; |
212380e3 AC |
282 | |
283 | propagate_generic(source_p, "KLINE", parv[1], CAP_KLN, | |
8bbeb278 | 284 | "%d %s %s :%s", tkline_time, parv[3], parv[4], parv[5]); |
212380e3 AC |
285 | |
286 | if(!match(parv[1], me.name)) | |
3c7d6fcc | 287 | return; |
212380e3 AC |
288 | |
289 | if(!IsPerson(source_p)) | |
3c7d6fcc | 290 | return; |
212380e3 AC |
291 | |
292 | handle_remote_kline(source_p, tkline_time, parv[3], parv[4], parv[5]); | |
212380e3 AC |
293 | } |
294 | ||
3c7d6fcc | 295 | static void |
428ca87b | 296 | me_kline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 AC |
297 | { |
298 | /* <tkline_time> <user> <host> :<reason> */ | |
299 | if(!IsPerson(source_p)) | |
3c7d6fcc | 300 | return; |
212380e3 AC |
301 | |
302 | handle_remote_kline(source_p, atoi(parv[1]), parv[2], parv[3], parv[4]); | |
212380e3 AC |
303 | } |
304 | ||
305 | static void | |
306 | handle_remote_kline(struct Client *source_p, int tkline_time, | |
8bbeb278 | 307 | const char *user, const char *host, const char *kreason) |
212380e3 | 308 | { |
212380e3 AC |
309 | char *reason = LOCAL_COPY(kreason); |
310 | struct ConfItem *aconf = NULL; | |
311 | char *oper_reason; | |
312 | ||
9319a2e2 | 313 | if(!valid_user_host(source_p, user, host)) |
212380e3 AC |
314 | return; |
315 | ||
5c2b9eaf JT |
316 | if(!valid_wild_card(user, host)) |
317 | { | |
318 | sendto_one_notice(source_p, | |
319 | ":Please include at least %d non-wildcard " | |
320 | "characters with the user@host", | |
321 | ConfigFileEntry.min_nonwildcard); | |
803ce385 | 322 | return; |
5c2b9eaf JT |
323 | } |
324 | ||
212380e3 AC |
325 | if(already_placed_kline(source_p, user, host, tkline_time)) |
326 | return; | |
327 | ||
3ff5a12e EK |
328 | remove_superseded_klines(user, host); |
329 | ||
212380e3 AC |
330 | aconf = make_conf(); |
331 | ||
332 | aconf->status = CONF_KILL; | |
b52c2949 | 333 | aconf->created = rb_current_time(); |
47a03750 VY |
334 | aconf->user = rb_strdup(user); |
335 | aconf->host = rb_strdup(host); | |
27f616dd | 336 | aconf->info.oper = operhash_add(get_oper_name(source_p)); |
212380e3 | 337 | |
9319a2e2 KB |
338 | if(strlen(reason) > BANREASONLEN) |
339 | reason[BANREASONLEN] = '\0'; | |
340 | ||
212380e3 AC |
341 | /* Look for an oper reason */ |
342 | if((oper_reason = strchr(reason, '|')) != NULL) | |
343 | { | |
344 | *oper_reason = '\0'; | |
345 | oper_reason++; | |
346 | ||
347 | if(!EmptyString(oper_reason)) | |
47a03750 | 348 | aconf->spasswd = rb_strdup(oper_reason); |
212380e3 | 349 | } |
c935336b | 350 | aconf->passwd = rb_strdup(reason); |
212380e3 | 351 | |
212380e3 | 352 | if(tkline_time > 0) |
b52c2949 | 353 | apply_tkline(source_p, aconf, reason, oper_reason, tkline_time); |
212380e3 | 354 | else |
b52c2949 | 355 | apply_kline(source_p, aconf, reason, oper_reason); |
212380e3 | 356 | |
b068a4b5 | 357 | check_one_kline(aconf); |
212380e3 AC |
358 | } |
359 | ||
360 | /* mo_unkline() | |
361 | * | |
362 | * parv[1] - kline to remove | |
363 | * parv[2] - optional "ON" | |
364 | * parv[3] - optional target server | |
365 | */ | |
3c7d6fcc | 366 | static void |
428ca87b | 367 | mo_unkline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 AC |
368 | { |
369 | const char *user; | |
370 | char *host; | |
371 | char splat[] = "*"; | |
372 | char *h = LOCAL_COPY(parv[1]); | |
40a1d446 | 373 | struct ConfItem *aconf; |
f66f0baa | 374 | bool propagated = true; |
212380e3 AC |
375 | |
376 | if(!IsOperUnkline(source_p)) | |
377 | { | |
8bbeb278 | 378 | sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "unkline"); |
3c7d6fcc | 379 | return; |
212380e3 AC |
380 | } |
381 | ||
382 | if((host = strchr(h, '@')) || *h == '*' || strchr(h, '.') || strchr(h, ':')) | |
383 | { | |
384 | /* Explicit user@host mask given */ | |
385 | ||
386 | if(host) /* Found user@host */ | |
387 | { | |
388 | *host++ = '\0'; | |
389 | ||
390 | /* check for @host */ | |
391 | if(*h) | |
392 | user = h; | |
393 | else | |
394 | user = splat; | |
395 | ||
396 | /* check for user@ */ | |
397 | if(!*host) | |
398 | host = splat; | |
399 | } | |
400 | else | |
401 | { | |
402 | user = splat; /* no @ found, assume its *@somehost */ | |
403 | host = h; | |
404 | } | |
405 | } | |
406 | else | |
407 | { | |
5366977b | 408 | sendto_one_notice(source_p, ":Invalid parameters"); |
3c7d6fcc | 409 | return; |
212380e3 AC |
410 | } |
411 | ||
412 | /* possible remote kline.. */ | |
413 | if((parc > 3) && (irccmp(parv[2], "ON") == 0)) | |
414 | { | |
415 | if(!IsOperRemoteBan(source_p)) | |
416 | { | |
417 | sendto_one(source_p, form_str(ERR_NOPRIVS), | |
8bbeb278 | 418 | me.name, source_p->name, "remoteban"); |
3c7d6fcc | 419 | return; |
212380e3 AC |
420 | } |
421 | ||
a9227555 | 422 | sendto_realops_snomask(SNO_GENERAL, L_NETWIDE, "%s is removing the K-Line for [%s@%s] on %s", |
423 | get_oper_name(source_p), user, host, parv[3]); | |
424 | ||
8bbeb278 | 425 | propagate_generic(source_p, "UNKLINE", parv[3], CAP_UNKLN, "%s %s", user, host); |
212380e3 AC |
426 | |
427 | if(match(parv[3], me.name) == 0) | |
3c7d6fcc | 428 | return; |
431a1a27 | 429 | |
f66f0baa | 430 | propagated = false; |
212380e3 | 431 | } |
431a1a27 JT |
432 | |
433 | aconf = find_exact_conf_by_address(host, CONF_KILL, user); | |
434 | ||
435 | /* No clustering for removing a propagated kline */ | |
436 | if(propagated && (aconf == NULL || !aconf->lifetime) && | |
437 | rb_dlink_list_length(&cluster_conf_list) > 0) | |
212380e3 AC |
438 | cluster_generic(source_p, "UNKLINE", SHARED_UNKLINE, CAP_UNKLN, |
439 | "%s %s", user, host); | |
440 | ||
3ff5a12e EK |
441 | bool removed_kline = false; |
442 | ||
443 | while (aconf = find_exact_conf_by_address_filtered(host, CONF_KILL, user, is_local_kline), aconf != NULL) | |
40a1d446 | 444 | { |
3ff5a12e EK |
445 | removed_kline = true; |
446 | ||
447 | if(remove_temp_kline(source_p, aconf)) | |
448 | continue; | |
449 | ||
450 | remove_permkline_match(source_p, aconf); | |
40a1d446 | 451 | } |
55abcbb2 | 452 | |
3ff5a12e EK |
453 | aconf = find_exact_conf_by_address(host, CONF_KILL, user); |
454 | if (aconf) | |
431a1a27 | 455 | { |
3ff5a12e | 456 | if (propagated) |
431a1a27 JT |
457 | remove_prop_kline(source_p, aconf); |
458 | else | |
459 | sendto_one_notice(source_p, ":Cannot remove global K-Line %s@%s on specific servers", user, host); | |
431a1a27 | 460 | } |
3ff5a12e EK |
461 | else if (!removed_kline) |
462 | { | |
463 | sendto_one_notice(source_p, ":No K-Line for %s@%s", user, host); | |
464 | } | |
212380e3 AC |
465 | } |
466 | ||
467 | /* ms_unkline() | |
468 | * | |
469 | * parv[1] - target server | |
470 | * parv[2] - user to unkline | |
471 | * parv[3] - host to unkline | |
472 | */ | |
3c7d6fcc | 473 | static void |
428ca87b | 474 | ms_unkline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 | 475 | { |
8bbeb278 AC |
476 | /* parv[0] parv[1] parv[2] parv[3] |
477 | * oper target server user host */ | |
478 | propagate_generic(source_p, "UNKLINE", parv[1], CAP_UNKLN, "%s %s", parv[2], parv[3]); | |
212380e3 AC |
479 | |
480 | if(!match(parv[1], me.name)) | |
3c7d6fcc | 481 | return; |
212380e3 AC |
482 | |
483 | if(!IsPerson(source_p)) | |
3c7d6fcc | 484 | return; |
212380e3 AC |
485 | |
486 | handle_remote_unkline(source_p, parv[2], parv[3]); | |
212380e3 AC |
487 | } |
488 | ||
3c7d6fcc | 489 | static void |
428ca87b | 490 | me_unkline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]) |
212380e3 AC |
491 | { |
492 | /* user host */ | |
493 | if(!IsPerson(source_p)) | |
3c7d6fcc | 494 | return; |
212380e3 AC |
495 | |
496 | handle_remote_unkline(source_p, parv[1], parv[2]); | |
212380e3 AC |
497 | } |
498 | ||
499 | static void | |
500 | handle_remote_unkline(struct Client *source_p, const char *user, const char *host) | |
501 | { | |
40a1d446 | 502 | struct ConfItem *aconf; |
3ff5a12e | 503 | bool removed_kline = false; |
40a1d446 | 504 | |
3ff5a12e | 505 | while (aconf = find_exact_conf_by_address_filtered(host, CONF_KILL, user, is_local_kline), aconf != NULL) |
431a1a27 | 506 | { |
3ff5a12e | 507 | removed_kline = true; |
40a1d446 | 508 | |
3ff5a12e EK |
509 | if(remove_temp_kline(source_p, aconf)) |
510 | continue; | |
212380e3 | 511 | |
3ff5a12e EK |
512 | remove_permkline_match(source_p, aconf); |
513 | } | |
514 | ||
515 | if (find_exact_conf_by_address(host, CONF_KILL, user)) | |
516 | sendto_one_notice(source_p, ":Cannot remove global K-Line %s@%s on specific servers", user, host); | |
517 | else if (!removed_kline) | |
518 | sendto_one_notice(source_p, ":No K-Line for %s@%s", user, host); | |
212380e3 AC |
519 | } |
520 | ||
521 | /* apply_kline() | |
522 | * | |
55abcbb2 | 523 | * inputs - |
212380e3 AC |
524 | * output - NONE |
525 | * side effects - kline as given, is added to the hashtable | |
526 | * and conf file | |
527 | */ | |
528 | static void | |
529 | apply_kline(struct Client *source_p, struct ConfItem *aconf, | |
b52c2949 | 530 | const char *reason, const char *oper_reason) |
212380e3 | 531 | { |
40c1fd47 | 532 | add_conf_by_address(aconf->host, CONF_KILL, aconf->user, NULL, aconf); |
8bbeb278 AC |
533 | bandb_add(BANDB_KLINE, source_p, aconf->user, aconf->host, |
534 | reason, EmptyString(oper_reason) ? NULL : oper_reason, 0); | |
9964e935 AC |
535 | |
536 | /* no oper reason.. */ | |
537 | if(EmptyString(oper_reason)) | |
538 | { | |
539 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
540 | "%s added K-Line for [%s@%s] [%s]", | |
541 | get_oper_name(source_p), aconf->user, aconf->host, reason); | |
542 | ilog(L_KLINE, "K %s 0 %s %s %s", | |
543 | get_oper_name(source_p), aconf->user, aconf->host, reason); | |
544 | } | |
545 | else | |
546 | { | |
547 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
548 | "%s added K-Line for [%s@%s] [%s|%s]", | |
549 | get_oper_name(source_p), aconf->user, aconf->host, | |
550 | reason, oper_reason); | |
551 | ilog(L_KLINE, "K %s 0 %s %s %s|%s", | |
552 | get_oper_name(source_p), aconf->user, aconf->host, reason, oper_reason); | |
553 | } | |
554 | ||
555 | sendto_one_notice(source_p, ":Added K-Line [%s@%s]", | |
556 | aconf->user, aconf->host); | |
212380e3 AC |
557 | } |
558 | ||
559 | /* apply_tkline() | |
560 | * | |
561 | * inputs - | |
562 | * output - NONE | |
563 | * side effects - tkline as given is placed | |
564 | */ | |
565 | static void | |
566 | apply_tkline(struct Client *source_p, struct ConfItem *aconf, | |
b52c2949 | 567 | const char *reason, const char *oper_reason, int tkline_time) |
212380e3 | 568 | { |
e3354945 | 569 | aconf->hold = rb_current_time() + tkline_time; |
212380e3 AC |
570 | add_temp_kline(aconf); |
571 | ||
572 | /* no oper reason.. */ | |
573 | if(EmptyString(oper_reason)) | |
574 | { | |
575 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
8bbeb278 AC |
576 | "%s added temporary %d min. K-Line for [%s@%s] [%s]", |
577 | get_oper_name(source_p), tkline_time / 60, | |
578 | aconf->user, aconf->host, reason); | |
212380e3 | 579 | ilog(L_KLINE, "K %s %d %s %s %s", |
8bbeb278 | 580 | get_oper_name(source_p), tkline_time / 60, aconf->user, aconf->host, reason); |
212380e3 AC |
581 | } |
582 | else | |
583 | { | |
584 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
8bbeb278 AC |
585 | "%s added temporary %d min. K-Line for [%s@%s] [%s|%s]", |
586 | get_oper_name(source_p), tkline_time / 60, | |
587 | aconf->user, aconf->host, reason, oper_reason); | |
212380e3 | 588 | ilog(L_KLINE, "K %s %d %s %s %s|%s", |
8bbeb278 AC |
589 | get_oper_name(source_p), tkline_time / 60, |
590 | aconf->user, aconf->host, reason, oper_reason); | |
212380e3 AC |
591 | } |
592 | ||
593 | sendto_one_notice(source_p, ":Added temporary %d min. K-Line [%s@%s]", | |
594 | tkline_time / 60, aconf->user, aconf->host); | |
595 | } | |
596 | ||
431a1a27 JT |
597 | static void |
598 | apply_prop_kline(struct Client *source_p, struct ConfItem *aconf, | |
599 | const char *reason, const char *oper_reason, int tkline_time) | |
600 | { | |
431a1a27 JT |
601 | aconf->flags |= CONF_FLAGS_MYOPER | CONF_FLAGS_TEMPORARY; |
602 | aconf->hold = rb_current_time() + tkline_time; | |
603 | aconf->lifetime = aconf->hold; | |
604 | ||
3cbbfb25 | 605 | replace_old_ban(aconf); |
431a1a27 | 606 | |
ce376a21 | 607 | add_prop_ban(aconf); |
431a1a27 JT |
608 | add_conf_by_address(aconf->host, CONF_KILL, aconf->user, NULL, aconf); |
609 | ||
610 | /* no oper reason.. */ | |
611 | if(EmptyString(oper_reason)) | |
612 | { | |
613 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
614 | "%s added global %d min. K-Line for [%s@%s] [%s]", | |
615 | get_oper_name(source_p), tkline_time / 60, | |
616 | aconf->user, aconf->host, reason); | |
617 | ilog(L_KLINE, "K %s %d %s %s %s", | |
618 | get_oper_name(source_p), tkline_time / 60, aconf->user, aconf->host, reason); | |
619 | } | |
620 | else | |
621 | { | |
622 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
623 | "%s added global %d min. K-Line for [%s@%s] [%s|%s]", | |
624 | get_oper_name(source_p), tkline_time / 60, | |
625 | aconf->user, aconf->host, reason, oper_reason); | |
626 | ilog(L_KLINE, "K %s %d %s %s %s|%s", | |
627 | get_oper_name(source_p), tkline_time / 60, | |
628 | aconf->user, aconf->host, reason, oper_reason); | |
629 | } | |
630 | ||
631 | sendto_one_notice(source_p, ":Added global %d min. K-Line [%s@%s]", | |
632 | tkline_time / 60, aconf->user, aconf->host); | |
633 | ||
634 | sendto_server(NULL, NULL, CAP_BAN|CAP_TS6, NOCAPS, | |
cedb7d05 | 635 | ":%s BAN K %s %s %lu %d %d * :%s%s%s", |
431a1a27 JT |
636 | source_p->id, aconf->user, aconf->host, |
637 | (unsigned long)aconf->created, | |
638 | (int)(aconf->hold - aconf->created), | |
639 | (int)(aconf->lifetime - aconf->created), | |
640 | reason, | |
641 | oper_reason ? "|" : "", | |
642 | oper_reason ? oper_reason : ""); | |
643 | } | |
644 | ||
212380e3 | 645 | /* find_user_host() |
55abcbb2 | 646 | * |
212380e3 | 647 | * inputs - client placing kline, user@host, user buffer, host buffer |
3c7d6fcc | 648 | * output - false if not ok to kline, true to kline i.e. if valid user host |
212380e3 AC |
649 | * side effects - |
650 | */ | |
3c7d6fcc | 651 | static bool |
212380e3 AC |
652 | find_user_host(struct Client *source_p, const char *userhost, char *luser, char *lhost) |
653 | { | |
654 | char *hostp; | |
655 | ||
656 | hostp = strchr(userhost, '@'); | |
8bbeb278 | 657 | |
212380e3 AC |
658 | if(hostp != NULL) /* I'm a little user@host */ |
659 | { | |
660 | *(hostp++) = '\0'; /* short and squat */ | |
661 | if(*userhost) | |
f427c8b0 | 662 | rb_strlcpy(luser, userhost, USERLEN + 1); /* here is my user */ |
212380e3 AC |
663 | else |
664 | strcpy(luser, "*"); | |
665 | if(*hostp) | |
f427c8b0 | 666 | rb_strlcpy(lhost, hostp, HOSTLEN + 1); /* here is my host */ |
212380e3 AC |
667 | else |
668 | strcpy(lhost, "*"); | |
8bbeb278 | 669 | } |
212380e3 AC |
670 | else |
671 | { | |
672 | /* no '@', no '.', so its not a user@host or host, therefore | |
673 | * its a nick, which support was removed for. | |
674 | */ | |
675 | if(strchr(userhost, '.') == NULL && strchr(userhost, ':') == NULL) | |
af0ba24b JT |
676 | { |
677 | sendto_one_notice(source_p, ":K-Line must be a user@host or host"); | |
3c7d6fcc | 678 | return false; |
af0ba24b | 679 | } |
212380e3 AC |
680 | |
681 | luser[0] = '*'; /* no @ found, assume its *@somehost */ | |
682 | luser[1] = '\0'; | |
f427c8b0 | 683 | rb_strlcpy(lhost, userhost, HOSTLEN + 1); |
212380e3 AC |
684 | } |
685 | ||
2b843a5b JT |
686 | /* would break the protocol */ |
687 | if (*luser == ':' || *lhost == ':') | |
688 | { | |
689 | sendto_one_notice(source_p, ":Invalid K-Line"); | |
3c7d6fcc | 690 | return false; |
2b843a5b JT |
691 | } |
692 | ||
3c7d6fcc | 693 | return true; |
212380e3 AC |
694 | } |
695 | ||
696 | /* valid_user_host() | |
697 | * | |
698 | * inputs - user buffer, host buffer | |
3c7d6fcc | 699 | * output - false if invalid, true if valid |
212380e3 AC |
700 | * side effects - |
701 | */ | |
3c7d6fcc | 702 | static bool |
212380e3 AC |
703 | valid_user_host(struct Client *source_p, const char *luser, const char *lhost) |
704 | { | |
8bbeb278 AC |
705 | /* # is invalid, as are '!' (n!u@h kline) and '@' (u@@h kline) */ |
706 | if(strchr(lhost, '#') || strchr(luser, '#') || strchr(luser, '!') || strchr(lhost, '@')) | |
212380e3 AC |
707 | { |
708 | sendto_one_notice(source_p, ":Invalid K-Line"); | |
3c7d6fcc | 709 | return false; |
212380e3 AC |
710 | } |
711 | ||
3c7d6fcc | 712 | return true; |
212380e3 AC |
713 | } |
714 | ||
212380e3 AC |
715 | /* already_placed_kline() |
716 | * | |
717 | * inputs - source to notify, user@host to check, tkline time | |
3c7d6fcc EM |
718 | * outputs - true if a perm kline or a tkline when a tkline is being |
719 | * set exists, else false | |
212380e3 AC |
720 | * side effects - notifies source_p kline exists |
721 | */ | |
722 | /* Note: This currently works if the new K-line is a special case of an | |
723 | * existing K-line, but not the other way round. To do that we would | |
724 | * have to walk the hash and check every existing K-line. -A1kmm. | |
725 | */ | |
3c7d6fcc | 726 | static bool |
212380e3 AC |
727 | already_placed_kline(struct Client *source_p, const char *luser, const char *lhost, int tkline) |
728 | { | |
7f27e316 | 729 | const char *reason, *p; |
e7046ee5 | 730 | struct rb_sockaddr_storage iphost, *piphost; |
212380e3 | 731 | struct ConfItem *aconf; |
8bbeb278 | 732 | int t, bits; |
7f27e316 JT |
733 | |
734 | aconf = find_exact_conf_by_address(lhost, CONF_KILL, luser); | |
8bbeb278 | 735 | if(aconf == NULL && ConfigFileEntry.non_redundant_klines) |
212380e3 | 736 | { |
7f27e316 | 737 | bits = 0; |
7d9e8e9d EK |
738 | t = parse_netmask_strict(lhost, &iphost, &bits); |
739 | piphost = &iphost; | |
740 | if (t == HM_IPV4) | |
741 | t = AF_INET; | |
742 | else if (t == HM_IPV6) | |
743 | t = AF_INET6; | |
212380e3 AC |
744 | else |
745 | piphost = NULL; | |
746 | ||
8bbeb278 AC |
747 | aconf = find_conf_by_address(lhost, NULL, NULL, (struct sockaddr *) piphost, |
748 | CONF_KILL, t, luser, NULL); | |
749 | if(aconf != NULL) | |
212380e3 | 750 | { |
7f27e316 JT |
751 | /* The above was really a lookup of a single IP, |
752 | * so check if the new kline is wider than the | |
753 | * existing one. | |
754 | * -- jilles | |
755 | */ | |
756 | p = strchr(aconf->host, '/'); | |
8bbeb278 | 757 | if(bits > 0 && (p == NULL || bits < atoi(p + 1))) |
7f27e316 JT |
758 | aconf = NULL; |
759 | } | |
760 | } | |
3ff5a12e EK |
761 | |
762 | if (aconf == NULL) | |
763 | return false; | |
764 | ||
765 | /* allow klines to be duplicated by longer ones */ | |
766 | if ((aconf->flags & CONF_FLAGS_TEMPORARY) && | |
767 | (tkline == 0 || tkline > aconf->hold - rb_current_time())) | |
768 | return false; | |
769 | ||
770 | reason = aconf->passwd ? aconf->passwd : "<No Reason>"; | |
771 | ||
772 | sendto_one_notice(source_p, | |
773 | ":[%s@%s] already K-Lined by [%s@%s] - %s", | |
774 | luser, lhost, aconf->user, aconf->host, reason); | |
775 | return true; | |
776 | } | |
777 | ||
778 | static void | |
779 | remove_superseded_klines(const char *user, const char *host) | |
780 | { | |
781 | struct ConfItem *aconf; | |
782 | ||
783 | while (aconf = find_exact_conf_by_address_filtered(host, CONF_KILL, user, is_temporary_kline), aconf != NULL) | |
7f27e316 | 784 | { |
3ff5a12e EK |
785 | rb_dlink_node *ptr; |
786 | int i; | |
7f27e316 | 787 | |
3ff5a12e EK |
788 | for (i = 0; i < LAST_TEMP_TYPE; i++) |
789 | { | |
790 | RB_DLINK_FOREACH(ptr, temp_klines[i].head) | |
791 | { | |
792 | if (aconf == ptr->data) | |
793 | { | |
794 | rb_dlinkDestroy(ptr, &temp_klines[i]); | |
795 | delete_one_address_conf(aconf->host, aconf); | |
796 | break; | |
797 | } | |
798 | } | |
212380e3 AC |
799 | } |
800 | } | |
212380e3 AC |
801 | } |
802 | ||
803 | /* remove_permkline_match() | |
804 | * | |
805 | * hunts for a permanent kline, and removes it. | |
806 | */ | |
807 | static void | |
40a1d446 | 808 | remove_permkline_match(struct Client *source_p, struct ConfItem *aconf) |
212380e3 | 809 | { |
8bbeb278 | 810 | sendto_one_notice(source_p, ":K-Line for [%s@%s] is removed", aconf->user, aconf->host); |
212380e3 AC |
811 | |
812 | sendto_realops_snomask(SNO_GENERAL, L_ALL, | |
8bbeb278 AC |
813 | "%s has removed the K-Line for: [%s@%s]", |
814 | get_oper_name(source_p), aconf->user, aconf->host); | |
212380e3 | 815 | |
8bbeb278 | 816 | ilog(L_KLINE, "UK %s %s %s", get_oper_name(source_p), aconf->user, aconf->host); |
40a1d446 | 817 | |
54ac8b60 | 818 | remove_reject_mask(aconf->user, aconf->host); |
8bbeb278 | 819 | bandb_del(BANDB_KLINE, aconf->user, aconf->host); |
40a1d446 | 820 | delete_one_address_conf(aconf->host, aconf); |
212380e3 AC |
821 | } |
822 | ||
212380e3 AC |
823 | /* remove_temp_kline() |
824 | * | |
825 | * inputs - username, hostname to unkline | |
826 | * outputs - | |
827 | * side effects - tries to unkline anything that matches | |
828 | */ | |
3c7d6fcc | 829 | static bool |
d922dded | 830 | remove_temp_kline(struct Client *source_p, struct ConfItem *aconf) |
212380e3 | 831 | { |
5b96d9a6 | 832 | rb_dlink_node *ptr; |
212380e3 AC |
833 | int i; |
834 | ||
8bbeb278 | 835 | for(i = 0; i < LAST_TEMP_TYPE; i++) |
212380e3 | 836 | { |
5b96d9a6 | 837 | RB_DLINK_FOREACH(ptr, temp_klines[i].head) |
212380e3 | 838 | { |
8bbeb278 | 839 | if(aconf == ptr->data) |
212380e3 | 840 | { |
d922dded | 841 | sendto_one_notice(source_p, |
8bbeb278 AC |
842 | ":Un-klined [%s@%s] from temporary k-lines", |
843 | aconf->user, aconf->host); | |
d922dded | 844 | sendto_realops_snomask(SNO_GENERAL, L_ALL, |
8bbeb278 AC |
845 | "%s has removed the temporary K-Line for: [%s@%s]", |
846 | get_oper_name(source_p), aconf->user, | |
847 | aconf->host); | |
d922dded JT |
848 | |
849 | ilog(L_KLINE, "UK %s %s %s", | |
8bbeb278 | 850 | get_oper_name(source_p), aconf->user, aconf->host); |
555ac41f | 851 | rb_dlinkDestroy(ptr, &temp_klines[i]); |
54ac8b60 | 852 | remove_reject_mask(aconf->user, aconf->host); |
40a1d446 | 853 | delete_one_address_conf(aconf->host, aconf); |
3c7d6fcc | 854 | return true; |
212380e3 | 855 | } |
212380e3 AC |
856 | } |
857 | } | |
858 | ||
3c7d6fcc | 859 | return false; |
212380e3 | 860 | } |
431a1a27 JT |
861 | |
862 | static void | |
863 | remove_prop_kline(struct Client *source_p, struct ConfItem *aconf) | |
864 | { | |
483987a4 | 865 | time_t now; |
431a1a27 | 866 | |
ce376a21 | 867 | if (!lookup_prop_ban(aconf)) |
431a1a27 JT |
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); | |
ce376a21 | 895 | deactivate_conf(aconf, now); |
431a1a27 | 896 | } |