| 1 |
/* |
| 2 |
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd) |
| 3 |
* |
| 4 |
* Copyright (c) 2003-2014 ircd-hybrid development team |
| 5 |
* |
| 6 |
* This program is free software; you can redistribute it and/or modify |
| 7 |
* it under the terms of the GNU General Public License as published by |
| 8 |
* the Free Software Foundation; either version 2 of the License, or |
| 9 |
* (at your option) any later version. |
| 10 |
* |
| 11 |
* This program is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
* GNU General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
| 19 |
* USA |
| 20 |
*/ |
| 21 |
|
| 22 |
/*! \file m_xline.c |
| 23 |
* \brief Includes required functions for processing the XLINE/UNXLINE command. |
| 24 |
* \version $Id$ |
| 25 |
*/ |
| 26 |
|
| 27 |
#include "stdinc.h" |
| 28 |
#include "list.h" |
| 29 |
#include "channel.h" |
| 30 |
#include "client.h" |
| 31 |
#include "irc_string.h" |
| 32 |
#include "ircd.h" |
| 33 |
#include "conf.h" |
| 34 |
#include "hostmask.h" |
| 35 |
#include "numeric.h" |
| 36 |
#include "fdlist.h" |
| 37 |
#include "s_bsd.h" |
| 38 |
#include "log.h" |
| 39 |
#include "s_misc.h" |
| 40 |
#include "send.h" |
| 41 |
#include "hash.h" |
| 42 |
#include "s_serv.h" |
| 43 |
#include "parse.h" |
| 44 |
#include "modules.h" |
| 45 |
#include "resv.h" |
| 46 |
#include "conf_db.h" |
| 47 |
#include "memory.h" |
| 48 |
|
| 49 |
|
| 50 |
static int valid_xline(struct Client *, char *, char *, int); |
| 51 |
static void write_xline(struct Client *, char *, char *, time_t); |
| 52 |
static void remove_xline(struct Client *, char *); |
| 53 |
static int remove_xline_match(const char *); |
| 54 |
|
| 55 |
static void relay_xline(struct Client *, char *[]); |
| 56 |
|
| 57 |
static void |
| 58 |
check_xline(struct MaskItem *conf) |
| 59 |
{ |
| 60 |
dlink_node *ptr = NULL, *ptr_next = NULL; |
| 61 |
|
| 62 |
DLINK_FOREACH_SAFE(ptr, ptr_next, local_client_list.head) |
| 63 |
{ |
| 64 |
struct Client *client_p = ptr->data; |
| 65 |
|
| 66 |
if (IsDead(client_p)) |
| 67 |
continue; |
| 68 |
|
| 69 |
if (!match(conf->name, client_p->username)) |
| 70 |
conf_try_ban(client_p, conf); |
| 71 |
} |
| 72 |
} |
| 73 |
|
| 74 |
/* mo_xline() |
| 75 |
* |
| 76 |
* inputs - pointer to server |
| 77 |
* - pointer to client |
| 78 |
* - parameter count |
| 79 |
* - parameter list |
| 80 |
* output - |
| 81 |
* side effects - x line is added |
| 82 |
* |
| 83 |
*/ |
| 84 |
static int |
| 85 |
mo_xline(struct Client *client_p, struct Client *source_p, |
| 86 |
int parc, char *parv[]) |
| 87 |
{ |
| 88 |
char *reason = NULL; |
| 89 |
char *gecos = NULL; |
| 90 |
struct MaskItem *conf = NULL; |
| 91 |
char *target_server = NULL; |
| 92 |
time_t tkline_time = 0; |
| 93 |
|
| 94 |
if (!HasOFlag(source_p, OPER_FLAG_XLINE)) |
| 95 |
{ |
| 96 |
sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, |
| 97 |
source_p->name, "xline"); |
| 98 |
return 0; |
| 99 |
} |
| 100 |
|
| 101 |
/* |
| 102 |
* XLINE <gecos> <time> ON <mask> :<reason> |
| 103 |
* XLINE <gecos> ON <mask> :<reason> |
| 104 |
*/ |
| 105 |
if (parse_aline("XLINE", source_p, parc, parv, AWILD, &gecos, NULL, |
| 106 |
&tkline_time, &target_server, &reason) < 0) |
| 107 |
return 0; |
| 108 |
|
| 109 |
if (target_server != NULL) |
| 110 |
{ |
| 111 |
/* if a given expire time is given, ENCAP it */ |
| 112 |
if (tkline_time != 0) |
| 113 |
sendto_match_servs(source_p, target_server, CAP_ENCAP, |
| 114 |
"ENCAP %s XLINE %d %s 0 :%s", |
| 115 |
target_server, (int)tkline_time, gecos, reason); |
| 116 |
else |
| 117 |
sendto_match_servs(source_p, target_server, CAP_CLUSTER, |
| 118 |
"XLINE %s %s %d :%s", |
| 119 |
target_server, gecos, (int)tkline_time, reason); |
| 120 |
|
| 121 |
/* Allow ON to apply local xline as well if it matches */ |
| 122 |
if (match(target_server, me.name)) |
| 123 |
return 0; |
| 124 |
} |
| 125 |
else |
| 126 |
{ |
| 127 |
if (tkline_time != 0) |
| 128 |
cluster_a_line(source_p, "ENCAP", CAP_ENCAP, SHARED_XLINE, |
| 129 |
"XLINE %d %s 0 :%s", (int)tkline_time, gecos, reason); |
| 130 |
else |
| 131 |
cluster_a_line(source_p, "XLINE", CAP_KLN, SHARED_XLINE, |
| 132 |
"%s 0 :%s", gecos, reason); |
| 133 |
} |
| 134 |
|
| 135 |
if (!valid_xline(source_p, gecos, reason, 0)) |
| 136 |
return 0; |
| 137 |
|
| 138 |
if ((conf = find_matching_name_conf(CONF_XLINE, gecos, NULL, NULL, 0))) |
| 139 |
{ |
| 140 |
sendto_one(source_p, ":%s NOTICE %s :[%s] already X-Lined by [%s] - %s", |
| 141 |
me.name, source_p->name, gecos, |
| 142 |
conf->name, conf->reason); |
| 143 |
return 0; |
| 144 |
} |
| 145 |
|
| 146 |
write_xline(source_p, gecos, reason, tkline_time); |
| 147 |
return 0; |
| 148 |
} |
| 149 |
|
| 150 |
/* ms_xline() |
| 151 |
* |
| 152 |
* inputs - oper, target server, xline, {type}, reason |
| 153 |
* |
| 154 |
* outputs - none |
| 155 |
* side effects - propagates xline, applies it if we are a target |
| 156 |
*/ |
| 157 |
static int |
| 158 |
ms_xline(struct Client *client_p, struct Client *source_p, |
| 159 |
int parc, char *parv[]) |
| 160 |
{ |
| 161 |
if (parc != 5 || EmptyString(parv[4])) |
| 162 |
return 0; |
| 163 |
|
| 164 |
if (!IsClient(source_p)) |
| 165 |
return 0; |
| 166 |
|
| 167 |
if (!valid_xline(source_p, parv[2], parv[4], 0)) |
| 168 |
return 0; |
| 169 |
|
| 170 |
relay_xline(source_p, parv); |
| 171 |
return 0; |
| 172 |
} |
| 173 |
|
| 174 |
/* me_xline() |
| 175 |
* |
| 176 |
* inputs - server |
| 177 |
* - client (oper) |
| 178 |
* - parc number of arguments |
| 179 |
* - parv list of arguments |
| 180 |
* via parv[] |
| 181 |
* parv[1] = target server |
| 182 |
* parv[2] = xline |
| 183 |
* parv[3] = time |
| 184 |
* parv[4] = reason |
| 185 |
* |
| 186 |
* outputs - none |
| 187 |
* side effects - |
| 188 |
*/ |
| 189 |
static int |
| 190 |
me_xline(struct Client *client_p, struct Client *source_p, |
| 191 |
int parc, char *parv[]) |
| 192 |
{ |
| 193 |
if (!IsClient(source_p) || parc != 5) |
| 194 |
return 0; |
| 195 |
|
| 196 |
relay_xline(source_p, parv); |
| 197 |
return 0; |
| 198 |
} |
| 199 |
|
| 200 |
static void |
| 201 |
relay_xline(struct Client *source_p, char *parv[]) |
| 202 |
{ |
| 203 |
struct MaskItem *conf = NULL; |
| 204 |
int t_sec; |
| 205 |
|
| 206 |
t_sec = atoi(parv[3]); |
| 207 |
|
| 208 |
sendto_match_servs(source_p, parv[1], CAP_CLUSTER, |
| 209 |
"XLINE %s %s %s :%s", |
| 210 |
parv[1], parv[2], parv[3], parv[4]); |
| 211 |
|
| 212 |
if (match(parv[1], me.name)) |
| 213 |
return; |
| 214 |
|
| 215 |
if (HasFlag(source_p, FLAGS_SERVICE) || find_matching_name_conf(CONF_ULINE, source_p->servptr->name, |
| 216 |
source_p->username, source_p->host, |
| 217 |
SHARED_XLINE)) |
| 218 |
{ |
| 219 |
if ((conf = find_matching_name_conf(CONF_XLINE, parv[2], NULL, NULL, 0))) |
| 220 |
{ |
| 221 |
sendto_one(source_p, ":%s NOTICE %s :[%s] already X-Lined by [%s] - %s", |
| 222 |
ID_or_name(&me, source_p), |
| 223 |
ID_or_name(source_p, source_p), |
| 224 |
parv[2], conf->name, conf->reason); |
| 225 |
return; |
| 226 |
} |
| 227 |
|
| 228 |
write_xline(source_p, parv[2], parv[4], t_sec); |
| 229 |
} |
| 230 |
} |
| 231 |
|
| 232 |
/* mo_unxline() |
| 233 |
* |
| 234 |
* inputs - pointer to server |
| 235 |
* - pointer to client |
| 236 |
* - parameter count |
| 237 |
* - parameter list |
| 238 |
* output - |
| 239 |
* side effects - removes a xline |
| 240 |
*/ |
| 241 |
static int |
| 242 |
mo_unxline(struct Client *client_p, struct Client *source_p, |
| 243 |
int parc, char *parv[]) |
| 244 |
{ |
| 245 |
char *gecos = NULL; |
| 246 |
char *target_server = NULL; |
| 247 |
|
| 248 |
if (!HasOFlag(source_p, OPER_FLAG_UNXLINE)) |
| 249 |
{ |
| 250 |
sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, |
| 251 |
source_p->name, "unxline"); |
| 252 |
return 0; |
| 253 |
} |
| 254 |
|
| 255 |
/* UNXLINE bill ON irc.server.com */ |
| 256 |
if (parse_aline("UNXLINE", source_p, parc, parv, 0, &gecos, |
| 257 |
NULL, NULL, &target_server, NULL) < 0) |
| 258 |
return 0; |
| 259 |
|
| 260 |
if (target_server != NULL) |
| 261 |
{ |
| 262 |
sendto_match_servs(source_p, target_server, CAP_CLUSTER, |
| 263 |
"UNXLINE %s %s", target_server, gecos); |
| 264 |
|
| 265 |
/* Allow ON to apply local unxline as well if it matches */ |
| 266 |
if (match(target_server, me.name)) |
| 267 |
return 0; |
| 268 |
} |
| 269 |
else |
| 270 |
cluster_a_line(source_p, "UNXLINE", CAP_CLUSTER, SHARED_UNXLINE, |
| 271 |
"%s", gecos); |
| 272 |
|
| 273 |
remove_xline(source_p, gecos); |
| 274 |
return 0; |
| 275 |
} |
| 276 |
|
| 277 |
/* ms_unxline() |
| 278 |
* |
| 279 |
* inputs - oper, target server, gecos |
| 280 |
* outputs - none |
| 281 |
* side effects - propagates unxline, applies it if we are a target |
| 282 |
*/ |
| 283 |
static int |
| 284 |
ms_unxline(struct Client *client_p, struct Client *source_p, |
| 285 |
int parc, char *parv[]) |
| 286 |
{ |
| 287 |
if (parc != 3) |
| 288 |
return 0; |
| 289 |
|
| 290 |
if (!IsClient(source_p) || EmptyString(parv[2])) |
| 291 |
return 0; |
| 292 |
|
| 293 |
sendto_match_servs(source_p, parv[1], CAP_CLUSTER, |
| 294 |
"UNXLINE %s %s", parv[1], parv[2]); |
| 295 |
|
| 296 |
if (match(parv[1], me.name)) |
| 297 |
return 0; |
| 298 |
|
| 299 |
if (HasFlag(source_p, FLAGS_SERVICE) || find_matching_name_conf(CONF_ULINE, source_p->servptr->name, |
| 300 |
source_p->username, source_p->host, |
| 301 |
SHARED_UNXLINE)) |
| 302 |
remove_xline(source_p, parv[2]); |
| 303 |
return 0; |
| 304 |
} |
| 305 |
|
| 306 |
/* valid_xline() |
| 307 |
* |
| 308 |
* inputs - client to complain to, gecos, reason, whether to complain |
| 309 |
* outputs - 1 for valid, else 0 |
| 310 |
* side effects - complains to client, when warn != 0 |
| 311 |
*/ |
| 312 |
static int |
| 313 |
valid_xline(struct Client *source_p, char *gecos, char *reason, int warn) |
| 314 |
{ |
| 315 |
if (EmptyString(reason)) |
| 316 |
{ |
| 317 |
if (warn) |
| 318 |
sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS), |
| 319 |
me.name, source_p->name, "XLINE"); |
| 320 |
return 0; |
| 321 |
} |
| 322 |
|
| 323 |
if (!valid_wild_card_simple(gecos)) |
| 324 |
{ |
| 325 |
if (warn) |
| 326 |
sendto_one(source_p, ":%s NOTICE %s :Please include at least %d non-wildcard characters with the xline", |
| 327 |
me.name, source_p->name, ConfigFileEntry.min_nonwildcard_simple); |
| 328 |
|
| 329 |
return 0; |
| 330 |
} |
| 331 |
|
| 332 |
return 1; |
| 333 |
} |
| 334 |
|
| 335 |
/* write_xline() |
| 336 |
* |
| 337 |
* inputs - client taking credit for xline, gecos, reason, xline type |
| 338 |
* outputs - none |
| 339 |
* side effects - when successful, adds an xline to the conf |
| 340 |
*/ |
| 341 |
static void |
| 342 |
write_xline(struct Client *source_p, char *gecos, char *reason, |
| 343 |
time_t tkline_time) |
| 344 |
{ |
| 345 |
struct MaskItem *conf = conf_make(CONF_XLINE); |
| 346 |
|
| 347 |
collapse(gecos); |
| 348 |
conf->name = xstrdup(gecos); |
| 349 |
conf->reason = xstrdup(reason); |
| 350 |
conf->setat = CurrentTime; |
| 351 |
|
| 352 |
SetConfDatabase(conf); |
| 353 |
|
| 354 |
if (tkline_time != 0) |
| 355 |
{ |
| 356 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
| 357 |
"%s added temporary %d min. X-Line for [%s] [%s]", |
| 358 |
get_oper_name(source_p), (int)tkline_time/60, |
| 359 |
conf->name, conf->reason); |
| 360 |
sendto_one(source_p, ":%s NOTICE %s :Added temporary %d min. X-Line [%s]", |
| 361 |
MyConnect(source_p) ? me.name : ID_or_name(&me, source_p), |
| 362 |
source_p->name, (int)tkline_time/60, conf->name); |
| 363 |
ilog(LOG_TYPE_XLINE, "%s added temporary %d min. X-Line for [%s] [%s]", |
| 364 |
source_p->name, (int)tkline_time/60, conf->name, conf->reason); |
| 365 |
conf->until = CurrentTime + tkline_time; |
| 366 |
} |
| 367 |
else |
| 368 |
{ |
| 369 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
| 370 |
"%s added X-Line for [%s] [%s]", |
| 371 |
get_oper_name(source_p), conf->name, |
| 372 |
conf->reason); |
| 373 |
sendto_one(source_p, |
| 374 |
":%s NOTICE %s :Added X-Line [%s] [%s]", |
| 375 |
MyConnect(source_p) ? me.name : ID_or_name(&me, source_p), |
| 376 |
source_p->name, conf->name, conf->reason); |
| 377 |
ilog(LOG_TYPE_XLINE, "%s added X-Line for [%s] [%s]", |
| 378 |
get_oper_name(source_p), conf->name, conf->reason); |
| 379 |
} |
| 380 |
|
| 381 |
check_xline(conf); |
| 382 |
} |
| 383 |
|
| 384 |
static void |
| 385 |
remove_xline(struct Client *source_p, char *gecos) |
| 386 |
{ |
| 387 |
if (remove_xline_match(gecos)) |
| 388 |
{ |
| 389 |
sendto_one(source_p, |
| 390 |
":%s NOTICE %s :X-Line for [%s] is removed", |
| 391 |
me.name, source_p->name, gecos); |
| 392 |
sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE, |
| 393 |
"%s has removed the X-Line for: [%s]", |
| 394 |
get_oper_name(source_p), gecos); |
| 395 |
ilog(LOG_TYPE_XLINE, "%s removed X-Line for [%s]", |
| 396 |
get_oper_name(source_p), gecos); |
| 397 |
} |
| 398 |
else |
| 399 |
sendto_one(source_p, ":%s NOTICE %s :No X-Line for %s", |
| 400 |
me.name, source_p->name, gecos); |
| 401 |
} |
| 402 |
|
| 403 |
/* static int remove_tkline_match(const char *host, const char *user) |
| 404 |
* |
| 405 |
* Inputs: gecos |
| 406 |
* Output: returns YES on success, NO if no tkline removed. |
| 407 |
* Side effects: Any matching tklines are removed. |
| 408 |
*/ |
| 409 |
static int |
| 410 |
remove_xline_match(const char *gecos) |
| 411 |
{ |
| 412 |
dlink_node *ptr = NULL, *next_ptr = NULL; |
| 413 |
|
| 414 |
DLINK_FOREACH_SAFE(ptr, next_ptr, xconf_items.head) |
| 415 |
{ |
| 416 |
struct MaskItem *conf = ptr->data; |
| 417 |
|
| 418 |
if (!IsConfDatabase(conf)) |
| 419 |
continue; |
| 420 |
|
| 421 |
if (!irccmp(gecos, conf->name)) |
| 422 |
{ |
| 423 |
conf_free(conf); |
| 424 |
return 1; |
| 425 |
} |
| 426 |
} |
| 427 |
|
| 428 |
return 0; |
| 429 |
} |
| 430 |
|
| 431 |
static struct Message xline_msgtab = |
| 432 |
{ |
| 433 |
"XLINE", 0, 0, 2, MAXPARA, MFLG_SLOW, 0, |
| 434 |
{ m_unregistered, m_not_oper, ms_xline, me_xline, mo_xline, m_ignore } |
| 435 |
}; |
| 436 |
|
| 437 |
static struct Message unxline_msgtab = |
| 438 |
{ |
| 439 |
"UNXLINE", 0, 0, 2, MAXPARA, MFLG_SLOW, 0, |
| 440 |
{ m_unregistered, m_not_oper, ms_unxline, m_ignore, mo_unxline, m_ignore } |
| 441 |
}; |
| 442 |
|
| 443 |
static void |
| 444 |
module_init(void) |
| 445 |
{ |
| 446 |
mod_add_cmd(&xline_msgtab); |
| 447 |
mod_add_cmd(&unxline_msgtab); |
| 448 |
} |
| 449 |
|
| 450 |
static void |
| 451 |
module_exit(void) |
| 452 |
{ |
| 453 |
mod_del_cmd(&xline_msgtab); |
| 454 |
mod_del_cmd(&unxline_msgtab); |
| 455 |
} |
| 456 |
|
| 457 |
struct module module_entry = |
| 458 |
{ |
| 459 |
.node = { NULL, NULL, NULL }, |
| 460 |
.name = NULL, |
| 461 |
.version = "$Revision$", |
| 462 |
.handle = NULL, |
| 463 |
.modinit = module_init, |
| 464 |
.modexit = module_exit, |
| 465 |
.flags = 0 |
| 466 |
}; |
