1 |
/* |
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* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
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* m_kline.c: Bans a user. |
4 |
* |
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* Copyright (C) 2002 by the past and present ircd coders, and others. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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* USA |
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* |
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* $Id$ |
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*/ |
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|
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#include "stdinc.h" |
26 |
#include "list.h" |
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#include "channel.h" |
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#include "client.h" |
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#include "common.h" |
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#include "irc_string.h" |
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#include "sprintf_irc.h" |
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#include "ircd.h" |
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#include "hostmask.h" |
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#include "numeric.h" |
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#include "fdlist.h" |
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#include "s_bsd.h" |
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#include "s_conf.h" |
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#include "s_log.h" |
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#include "s_misc.h" |
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#include "send.h" |
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#include "hash.h" |
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#include "handlers.h" |
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#include "s_serv.h" |
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#include "msg.h" |
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#include "s_gline.h" |
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#include "parse.h" |
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#include "modules.h" |
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#include "irc_getnameinfo.h" |
49 |
|
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|
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static void me_kline(struct Client *, struct Client *, int, char **); |
52 |
static void mo_kline(struct Client *, struct Client *, int, char **); |
53 |
static void ms_kline(struct Client *, struct Client *, int, char **); |
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static void me_unkline(struct Client *, struct Client *, int, char **); |
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static void mo_unkline(struct Client *, struct Client *, int, char **); |
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static void ms_unkline(struct Client *, struct Client *, int, char **); |
57 |
|
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static int already_placed_kline(struct Client *, const char *, const char *, int); |
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static void apply_kline(struct Client *, struct ConfItem *, const char *, time_t); |
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static void apply_tkline(struct Client *, struct ConfItem *, int); |
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|
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static char buffer[IRCD_BUFSIZE]; |
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static int remove_tkline_match(const char *, const char *); |
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|
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struct Message kline_msgtab = { |
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"KLINE", 0, 0, 2, 0, MFLG_SLOW, 0, |
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{m_unregistered, m_not_oper, ms_kline, me_kline, mo_kline, m_ignore} |
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}; |
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|
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struct Message unkline_msgtab = { |
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"UNKLINE", 0, 0, 2, 0, MFLG_SLOW, 0, |
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{m_unregistered, m_not_oper, ms_unkline, me_unkline, mo_unkline, m_ignore} |
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}; |
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|
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void |
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_modinit(void) |
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{ |
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mod_add_cmd(&kline_msgtab); |
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mod_add_cmd(&unkline_msgtab); |
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add_capability("KLN", CAP_KLN, 1); |
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add_capability("UNKLN", CAP_UNKLN, 1); |
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} |
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|
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void |
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_moddeinit(void) |
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{ |
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mod_del_cmd(&kline_msgtab); |
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mod_del_cmd(&unkline_msgtab); |
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delete_capability("UNKLN"); |
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delete_capability("KLN"); |
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} |
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|
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const char *_version = "$Revision$"; |
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|
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/* mo_kline() |
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* |
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* inputs - pointer to server |
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* - pointer to client |
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* - parameter count |
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* - parameter list |
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* output - |
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* side effects - k line is added |
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*/ |
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static void |
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mo_kline(struct Client *client_p, struct Client *source_p, |
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int parc, char **parv) |
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{ |
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char *reason = NULL; |
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char *oper_reason; |
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char *user = NULL; |
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char *host = NULL; |
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const char *current_date; |
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char *target_server = NULL; |
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struct ConfItem *conf; |
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struct AccessItem *aconf; |
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time_t tkline_time = 0; |
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time_t cur_time; |
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|
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if (!IsOperK(source_p)) |
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{ |
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sendto_one(source_p, form_str(ERR_NOPRIVS), |
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me.name, source_p->name, "kline"); |
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return; |
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} |
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|
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if (parse_aline("KLINE", source_p, parc, parv, |
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AWILD, &user, &host, &tkline_time, &target_server, &reason) < 0) |
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return; |
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|
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if (target_server != NULL) |
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{ |
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if (HasID(source_p)) |
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{ |
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sendto_server(NULL, NULL, CAP_KLN|CAP_TS6, NOCAPS, |
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":%s KLINE %s %lu %s %s :%s", |
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source_p->id, target_server, (unsigned long)tkline_time, |
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user, host, reason); |
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sendto_server(NULL, NULL, CAP_KLN, CAP_TS6, |
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":%s KLINE %s %lu %s %s :%s", |
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source_p->name, target_server, (unsigned long)tkline_time, |
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user, host, reason); |
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} |
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else |
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sendto_server(NULL, NULL, CAP_KLN, NOCAPS, |
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":%s KLINE %s %lu %s %s :%s", |
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source_p->name, target_server, (unsigned long)tkline_time, |
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user, host, reason); |
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|
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/* Allow ON to apply local kline as well if it matches */ |
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if (!match(target_server, me.name)) |
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return; |
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} |
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else |
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cluster_a_line(source_p, "KLINE", CAP_KLN, SHARED_KLINE, |
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"%d %s %s :%s", tkline_time, user, host, reason); |
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|
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if (already_placed_kline(source_p, user, host, YES)) |
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return; |
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|
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/* Look for an oper reason */ |
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if ((oper_reason = strchr(reason, '|')) != NULL) |
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*oper_reason++ = '\0'; |
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|
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cur_time = CurrentTime; |
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current_date = smalldate(cur_time); |
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conf = make_conf_item(KLINE_TYPE); |
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aconf = map_to_conf(conf); |
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|
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DupString(aconf->host, host); |
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DupString(aconf->user, user); |
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|
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if (tkline_time != 0) |
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{ |
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ircsprintf(buffer, "Temporary K-line %d min. - %s (%s)", |
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(int)(tkline_time/60), reason, current_date); |
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DupString(aconf->reason, buffer); |
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|
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if (oper_reason != NULL) |
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DupString(aconf->oper_reason, oper_reason); |
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apply_tkline(source_p, conf, tkline_time); |
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} |
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else |
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{ |
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ircsprintf(buffer, "%s (%s)", reason, current_date); |
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DupString(aconf->reason, buffer); |
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|
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if (oper_reason != NULL) |
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DupString(aconf->oper_reason, oper_reason); |
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apply_kline(source_p, conf, current_date, cur_time); |
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} |
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} |
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|
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/* me_kline - handle remote kline. no propagation */ |
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static void |
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me_kline(struct Client *client_p, struct Client *source_p, |
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int parc, char *parv[]) |
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{ |
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struct ConfItem *conf=NULL; |
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struct AccessItem *aconf=NULL; |
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int tkline_time; |
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const char* current_date; |
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time_t cur_time; |
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char *kuser, *khost, *kreason, *oper_reason; |
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|
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if (parc != 6 || EmptyString(parv[5])) |
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return; |
207 |
|
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if (!match(parv[1], me.name)) |
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return; |
210 |
|
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tkline_time = valid_tkline(parv[2], TK_SECONDS); |
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kuser = parv[3]; |
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khost = parv[4]; |
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kreason = parv[5]; |
215 |
|
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if ((oper_reason = strchr(kreason, '|')) != NULL) |
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*oper_reason++ = '\0'; |
218 |
|
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cur_time = CurrentTime; |
220 |
current_date = smalldate(cur_time); |
221 |
|
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if (find_matching_name_conf(ULINE_TYPE, source_p->servptr->name, |
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source_p->username, source_p->host, |
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SHARED_KLINE)) |
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{ |
226 |
if (!IsClient(source_p) || |
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already_placed_kline(source_p, kuser, khost, YES)) |
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return; |
229 |
|
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conf = make_conf_item(KLINE_TYPE); |
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aconf = map_to_conf(conf); |
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DupString(aconf->host, khost); |
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DupString(aconf->user, kuser); |
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|
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if (tkline_time != 0) |
236 |
{ |
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ircsprintf(buffer, "Temporary K-line %d min. - %s (%s)", |
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(int)(tkline_time/60), kreason, current_date); |
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DupString(aconf->reason, buffer); |
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|
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if (oper_reason != NULL) |
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DupString(aconf->oper_reason, oper_reason); |
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apply_tkline(source_p, conf, tkline_time); |
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} |
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else |
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{ |
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ircsprintf(buffer, "%s (%s)", kreason, current_date); |
248 |
DupString(aconf->reason, buffer); |
249 |
|
250 |
if (oper_reason != NULL) |
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DupString(aconf->oper_reason, oper_reason); |
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apply_kline(source_p, conf, current_date, cur_time); |
253 |
} |
254 |
} |
255 |
} |
256 |
|
257 |
static void |
258 |
ms_kline(struct Client *client_p, struct Client *source_p, |
259 |
int parc, char *parv[]) |
260 |
{ |
261 |
if (parc != 6 || EmptyString(parv[5])) |
262 |
return; |
263 |
|
264 |
/* parv[0] parv[1] parv[2] parv[3] parv[4] parv[5] */ |
265 |
/* oper target_server tkline_time user host reason */ |
266 |
sendto_match_servs(source_p, parv[1], CAP_KLN, |
267 |
"KLINE %s %s %s %s :%s", |
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parv[1], parv[2], parv[3], parv[4], parv[5]); |
269 |
|
270 |
me_kline(client_p, source_p, parc, parv); |
271 |
} |
272 |
|
273 |
/* apply_kline() |
274 |
* |
275 |
* inputs - |
276 |
* output - NONE |
277 |
* side effects - kline as given, is added to the hashtable |
278 |
* and conf file |
279 |
*/ |
280 |
static void |
281 |
apply_kline(struct Client *source_p, struct ConfItem *conf, |
282 |
const char *current_date, time_t cur_time) |
283 |
{ |
284 |
struct AccessItem *aconf = map_to_conf(conf); |
285 |
|
286 |
add_conf_by_address(CONF_KILL, aconf); |
287 |
write_conf_line(source_p, conf, current_date, cur_time); |
288 |
/* Now, activate kline against current online clients */ |
289 |
rehashed_klines = 1; |
290 |
} |
291 |
|
292 |
/* apply_tkline() |
293 |
* |
294 |
* inputs - |
295 |
* output - NONE |
296 |
* side effects - tkline as given is placed |
297 |
*/ |
298 |
static void |
299 |
apply_tkline(struct Client *source_p, struct ConfItem *conf, |
300 |
int tkline_time) |
301 |
{ |
302 |
struct AccessItem *aconf; |
303 |
|
304 |
aconf = (struct AccessItem *)map_to_conf(conf); |
305 |
aconf->hold = CurrentTime + tkline_time; |
306 |
add_temp_line(conf); |
307 |
sendto_realops_flags(UMODE_ALL, L_ALL, |
308 |
"%s added temporary %d min. K-Line for [%s@%s] [%s]", |
309 |
get_oper_name(source_p), tkline_time/60, |
310 |
aconf->user, aconf->host, |
311 |
aconf->reason); |
312 |
sendto_one(source_p, ":%s NOTICE %s :Added temporary %d min. K-Line [%s@%s]", |
313 |
MyConnect(source_p) ? me.name : ID_or_name(&me, source_p->from), |
314 |
source_p->name, tkline_time/60, aconf->user, aconf->host); |
315 |
ilog(L_TRACE, "%s added temporary %d min. K-Line for [%s@%s] [%s]", |
316 |
source_p->name, tkline_time/60, |
317 |
aconf->user, aconf->host, aconf->reason); |
318 |
log_oper_action(LOG_TEMP_KLINE_TYPE, source_p, "[%s@%s] [%s]\n", |
319 |
aconf->user, aconf->host, aconf->reason); |
320 |
rehashed_klines = 1; |
321 |
} |
322 |
|
323 |
/* already_placed_kline() |
324 |
* inputs - user to complain to, username & host to check for |
325 |
* outputs - returns 1 on existing K-line, 0 if doesn't exist |
326 |
* side effects - notifies source_p if the K-line already exists |
327 |
*/ |
328 |
/* |
329 |
* Note: This currently works if the new K-line is a special case of an |
330 |
* existing K-line, but not the other way round. To do that we would |
331 |
* have to walk the hash and check every existing K-line. -A1kmm. |
332 |
*/ |
333 |
static int |
334 |
already_placed_kline(struct Client *source_p, const char *luser, const char *lhost, int warn) |
335 |
{ |
336 |
const char *reason; |
337 |
struct irc_ssaddr iphost, *piphost; |
338 |
struct AccessItem *aconf; |
339 |
int t; |
340 |
|
341 |
if ((t = parse_netmask(lhost, &iphost, &t)) != HM_HOST) |
342 |
{ |
343 |
#ifdef IPV6 |
344 |
if (t == HM_IPV6) |
345 |
t = AF_INET6; |
346 |
else |
347 |
#endif |
348 |
t = AF_INET; |
349 |
piphost = &iphost; |
350 |
} |
351 |
else |
352 |
{ |
353 |
t = 0; |
354 |
piphost = NULL; |
355 |
} |
356 |
|
357 |
if ((aconf = find_conf_by_address(lhost, piphost, CONF_KILL, t, luser, NULL))) |
358 |
{ |
359 |
if (warn) |
360 |
{ |
361 |
reason = aconf->reason ? aconf->reason : "No reason"; |
362 |
sendto_one(source_p, |
363 |
":%s NOTICE %s :[%s@%s] already K-Lined by [%s@%s] - %s", |
364 |
me.name, source_p->name, luser, lhost, aconf->user, |
365 |
aconf->host, reason); |
366 |
} |
367 |
return(1); |
368 |
} |
369 |
|
370 |
return(0); |
371 |
} |
372 |
|
373 |
/* |
374 |
** mo_unkline |
375 |
** Added Aug 31, 1997 |
376 |
** common (Keith Fralick) fralick@gate.net |
377 |
** |
378 |
** parv[0] = sender |
379 |
** parv[1] = address to remove |
380 |
* |
381 |
* |
382 |
*/ |
383 |
static void |
384 |
mo_unkline(struct Client *client_p,struct Client *source_p, |
385 |
int parc, char *parv[]) |
386 |
{ |
387 |
char *target_server = NULL; |
388 |
char *user, *host; |
389 |
|
390 |
if (!IsOperUnkline(source_p)) |
391 |
{ |
392 |
sendto_one(source_p, form_str(ERR_NOPRIVS), |
393 |
me.name, source_p->name, "unkline"); |
394 |
return; |
395 |
} |
396 |
|
397 |
if (parc < 2 || EmptyString(parv[1])) |
398 |
{ |
399 |
sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS), |
400 |
me.name, source_p->name, "UNKLINE"); |
401 |
return; |
402 |
} |
403 |
|
404 |
if (parse_aline("UNKLINE", source_p, parc, parv, 0, &user, |
405 |
&host, NULL, &target_server, NULL) < 0) |
406 |
return; |
407 |
|
408 |
if (target_server != NULL) |
409 |
{ |
410 |
sendto_match_servs(source_p, target_server, CAP_UNKLN, |
411 |
"UNKLINE %s %s %s", |
412 |
target_server, user, host); |
413 |
|
414 |
/* Allow ON to apply local unkline as well if it matches */ |
415 |
if (!match(target_server, me.name)) |
416 |
return; |
417 |
} |
418 |
else |
419 |
cluster_a_line(source_p, "UNKLINE", CAP_UNKLN, SHARED_UNKLINE, |
420 |
"%s %s", user, host); |
421 |
|
422 |
if (remove_tkline_match(host, user)) |
423 |
{ |
424 |
sendto_one(source_p, |
425 |
":%s NOTICE %s :Un-klined [%s@%s] from temporary K-Lines", |
426 |
me.name, source_p->name, user, host); |
427 |
sendto_realops_flags(UMODE_ALL, L_ALL, |
428 |
"%s has removed the temporary K-Line for: [%s@%s]", |
429 |
get_oper_name(source_p), user, host); |
430 |
ilog(L_NOTICE, "%s removed temporary K-Line for [%s@%s]", |
431 |
source_p->name, user, host); |
432 |
return; |
433 |
} |
434 |
|
435 |
if (remove_conf_line(KLINE_TYPE, source_p, user, host) > 0) |
436 |
{ |
437 |
sendto_one(source_p, ":%s NOTICE %s :K-Line for [%s@%s] is removed", |
438 |
me.name, source_p->name, user,host); |
439 |
sendto_realops_flags(UMODE_ALL, L_ALL, |
440 |
"%s has removed the K-Line for: [%s@%s]", |
441 |
get_oper_name(source_p), user, host); |
442 |
ilog(L_NOTICE, "%s removed K-Line for [%s@%s]", |
443 |
source_p->name, user, host); |
444 |
} |
445 |
else |
446 |
sendto_one(source_p, ":%s NOTICE %s :No K-Line for [%s@%s] found", |
447 |
me.name, source_p->name, user, host); |
448 |
} |
449 |
|
450 |
/* me_unkline() |
451 |
* |
452 |
* inputs - server |
453 |
* - client |
454 |
* - parc |
455 |
* - parv |
456 |
* outputs - none |
457 |
* side effects - if server is authorized, kline is removed |
458 |
* does not propagate message |
459 |
*/ |
460 |
static void |
461 |
me_unkline(struct Client *client_p, struct Client *source_p, |
462 |
int parc, char *parv[]) |
463 |
{ |
464 |
const char *kuser, *khost; |
465 |
|
466 |
if (parc != 4) |
467 |
return; |
468 |
|
469 |
kuser = parv[2]; |
470 |
khost = parv[3]; |
471 |
|
472 |
if (!IsClient(source_p) || !match(parv[1], me.name)) |
473 |
return; |
474 |
|
475 |
if (find_matching_name_conf(ULINE_TYPE, |
476 |
source_p->servptr->name, |
477 |
source_p->username, source_p->host, |
478 |
SHARED_UNKLINE)) |
479 |
{ |
480 |
if (remove_tkline_match(khost, kuser)) |
481 |
{ |
482 |
sendto_one(source_p, |
483 |
":%s NOTICE %s :Un-klined [%s@%s] from temporary K-Lines", |
484 |
me.name, source_p->name, kuser, khost); |
485 |
sendto_realops_flags(UMODE_ALL, L_ALL, |
486 |
"%s has removed the temporary K-Line for: [%s@%s]", |
487 |
get_oper_name(source_p), kuser, khost); |
488 |
ilog(L_NOTICE, "%s removed temporary K-Line for [%s@%s]", |
489 |
source_p->name, kuser, khost); |
490 |
return; |
491 |
} |
492 |
|
493 |
if (remove_conf_line(KLINE_TYPE, source_p, kuser, khost) > 0) |
494 |
{ |
495 |
sendto_one(source_p, ":%s NOTICE %s :K-Line for [%s@%s] is removed", |
496 |
me.name, source_p->name, kuser, khost); |
497 |
sendto_realops_flags(UMODE_ALL, L_ALL, |
498 |
"%s has removed the K-Line for: [%s@%s]", |
499 |
get_oper_name(source_p), kuser, khost); |
500 |
|
501 |
ilog(L_NOTICE, "%s removed K-Line for [%s@%s]", |
502 |
source_p->name, kuser, khost); |
503 |
} |
504 |
else |
505 |
sendto_one(source_p, ":%s NOTICE %s :No K-Line for [%s@%s] found", |
506 |
me.name, source_p->name, kuser, khost); |
507 |
} |
508 |
} |
509 |
|
510 |
/* ms_unkline - propagates and handles a remote unkline message */ |
511 |
static void |
512 |
ms_unkline(struct Client *client_p, struct Client *source_p, |
513 |
int parc, char *parv[]) |
514 |
{ |
515 |
if (parc != 4) |
516 |
return; |
517 |
|
518 |
sendto_match_servs(source_p, parv[1], CAP_UNKLN, |
519 |
"UNKLINE %s %s %s", |
520 |
parv[1], parv[2], parv[3]); |
521 |
|
522 |
me_unkline(client_p, source_p, parc, parv); |
523 |
} |
524 |
|
525 |
/* static int remove_tkline_match(const char *host, const char *user) |
526 |
* Input: A hostname, a username to unkline. |
527 |
* Output: returns YES on success, NO if no tkline removed. |
528 |
* Side effects: Any matching tklines are removed. |
529 |
*/ |
530 |
static int |
531 |
remove_tkline_match(const char *host, const char *user) |
532 |
{ |
533 |
struct AccessItem *tk_c; |
534 |
dlink_node *tk_n; |
535 |
struct irc_ssaddr addr, caddr; |
536 |
int nm_t, cnm_t, bits, cbits; |
537 |
nm_t = parse_netmask(host, &addr, &bits); |
538 |
|
539 |
DLINK_FOREACH(tk_n, temporary_klines.head) |
540 |
{ |
541 |
tk_c = map_to_conf(tk_n->data); |
542 |
cnm_t = parse_netmask(tk_c->host, &caddr, &cbits); |
543 |
if (cnm_t != nm_t || irccmp(user, tk_c->user)) |
544 |
continue; |
545 |
if ((nm_t==HM_HOST && !irccmp(tk_c->host, host)) || |
546 |
(nm_t==HM_IPV4 && bits==cbits && match_ipv4(&addr, &caddr, bits)) |
547 |
#ifdef IPV6 |
548 |
|| (nm_t==HM_IPV6 && bits==cbits && match_ipv6(&addr, &caddr, bits)) |
549 |
#endif |
550 |
) |
551 |
{ |
552 |
dlinkDelete(tk_n, &temporary_klines); |
553 |
delete_one_address_conf(tk_c->host, tk_c); |
554 |
return 1; |
555 |
} |
556 |
} |
557 |
|
558 |
return 0; |
559 |
} |