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/* |
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* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
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* m_dline.c: Bans a user. |
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* |
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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" |
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#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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|
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|
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static void mo_dline(struct Client *, struct Client *, int, char *[]); |
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static void mo_undline(struct Client *, struct Client *, int, char *[]); |
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|
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static int remove_tdline_match(const char *); |
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|
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struct Message dline_msgtab = { |
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"DLINE", 0, 0, 2, 0, MFLG_SLOW, 0, |
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{m_unregistered, m_not_oper, rfc1459_command_send_error, m_ignore, mo_dline, m_ignore} |
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}; |
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|
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struct Message undline_msgtab = { |
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"UNDLINE", 0, 0, 2, 0, MFLG_SLOW, 0, |
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{m_unregistered, m_not_oper, rfc1459_command_send_error, m_ignore, mo_undline, 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(&dline_msgtab); |
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mod_add_cmd(&undline_msgtab); |
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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(&dline_msgtab); |
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mod_del_cmd(&undline_msgtab); |
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} |
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|
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const char *_version = "$Revision$"; |
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|
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static char buffer[IRCD_BUFSIZE]; |
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|
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|
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/* apply_tdline() |
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* |
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* inputs - |
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* output - NONE |
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* side effects - tkline as given is placed |
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*/ |
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static void |
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apply_tdline(struct Client *source_p, struct ConfItem *conf, |
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const char *current_date, int tkline_time) |
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{ |
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struct AccessItem *aconf; |
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|
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aconf = map_to_conf(conf); |
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aconf->hold = CurrentTime + tkline_time; |
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|
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add_temp_line(conf); |
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sendto_realops_flags(UMODE_ALL, L_ALL, |
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"%s added temporary %d min. D-Line for [%s] [%s]", |
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get_oper_name(source_p), tkline_time/60, |
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aconf->host, aconf->reason); |
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|
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sendto_one(source_p, ":%s NOTICE %s :Added temporary %d min. D-Line [%s]", |
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MyConnect(source_p) ? me.name : ID_or_name(&me, source_p->from), |
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source_p->name, tkline_time/60, aconf->host); |
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ilog(L_TRACE, "%s added temporary %d min. D-Line for [%s] [%s]", |
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source_p->name, tkline_time/60, aconf->host, aconf->reason); |
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log_oper_action(LOG_TEMP_DLINE_TYPE, source_p, "[%s@%s] [%s]\n", |
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aconf->user, aconf->host, aconf->reason); |
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rehashed_klines = 1; |
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} |
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|
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/* mo_dline() |
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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 - D line is added |
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* |
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*/ |
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static void |
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mo_dline(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 def_reason[] = "No reason"; |
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char *dlhost, *oper_reason, *reason; |
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const char *creason; |
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const struct Client *target_p = NULL; |
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struct irc_ssaddr daddr; |
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struct ConfItem *conf=NULL; |
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struct AccessItem *aconf=NULL; |
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time_t tkline_time=0; |
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int bits, t; |
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const char *current_date = NULL; |
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time_t cur_time; |
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char hostip[HOSTIPLEN]; |
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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("DLINE", source_p, parc, parv, AWILD, &dlhost, |
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NULL, &tkline_time, NULL, &reason) < 0) |
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return; |
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|
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if ((t = parse_netmask(dlhost, NULL, &bits)) == HM_HOST) |
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{ |
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if ((target_p = find_chasing(client_p, source_p, dlhost, NULL)) == NULL) |
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return; |
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|
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if (!MyConnect(target_p)) |
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{ |
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sendto_one(source_p, |
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":%s NOTICE %s :Can't DLINE nick on another server", |
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me.name, source_p->name); |
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return; |
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} |
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|
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if (IsExemptKline(target_p)) |
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{ |
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sendto_one(source_p, |
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":%s NOTICE %s :%s is E-lined", me.name, |
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source_p->name, target_p->name); |
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return; |
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} |
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|
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getnameinfo((struct sockaddr *)&target_p->localClient->ip, |
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target_p->localClient->ip.ss_len, hostip, |
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sizeof(hostip), NULL, 0, NI_NUMERICHOST); |
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dlhost = hostip; |
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t = parse_netmask(dlhost, NULL, &bits); |
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assert(t == HM_IPV4 || t == HM_IPV6); |
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} |
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|
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if (bits < 8) |
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{ |
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sendto_one(source_p, |
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":%s NOTICE %s :For safety, bitmasks less than 8 require conf access.", |
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me.name, source_p->name); |
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return; |
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} |
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|
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#ifdef IPV6 |
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if (t == HM_IPV6) |
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t = AF_INET6; |
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else |
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#endif |
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t = AF_INET; |
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|
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parse_netmask(dlhost, &daddr, NULL); |
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|
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if ((aconf = find_dline_conf(&daddr, t)) != NULL) |
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{ |
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creason = aconf->reason ? aconf->reason : def_reason; |
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if (IsConfExemptKline(aconf)) |
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sendto_one(source_p, |
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":%s NOTICE %s :[%s] is (E)d-lined by [%s] - %s", |
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me.name, source_p->name, dlhost, aconf->host, creason); |
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else |
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sendto_one(source_p, |
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":%s NOTICE %s :[%s] already D-lined by [%s] - %s", |
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me.name, source_p->name, dlhost, aconf->host, creason); |
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return; |
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} |
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|
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cur_time = CurrentTime; |
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current_date = smalldate(cur_time); |
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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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if (!valid_comment(source_p, reason, YES)) |
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return; |
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|
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conf = make_conf_item(DLINE_TYPE); |
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aconf = map_to_conf(conf); |
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DupString(aconf->host, dlhost); |
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|
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if (tkline_time != 0) |
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{ |
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ircsprintf(buffer, "Temporary D-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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if (oper_reason != NULL) |
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DupString(aconf->oper_reason, oper_reason); |
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apply_tdline(source_p, conf, current_date, 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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if (oper_reason != NULL) |
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DupString(aconf->oper_reason, oper_reason); |
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add_conf_by_address(CONF_DLINE, aconf); |
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write_conf_line(source_p, conf, current_date, cur_time); |
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} |
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|
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rehashed_klines = 1; |
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} |
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|
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/* static int remove_tdline_match(const char *host, const char *user) |
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* Input: An ip to undline. |
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* Output: returns YES on success, NO if no tdline removed. |
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* Side effects: Any matching tdlines are removed. |
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*/ |
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static int |
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remove_tdline_match(const char *cidr) |
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{ |
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struct AccessItem *td_conf; |
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dlink_node *td_node; |
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struct irc_ssaddr addr, caddr; |
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int nm_t, cnm_t, bits, cbits; |
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nm_t = parse_netmask(cidr, &addr, &bits); |
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|
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DLINK_FOREACH(td_node, temporary_dlines.head) |
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{ |
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td_conf = map_to_conf(td_node->data); |
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cnm_t = parse_netmask(td_conf->host, &caddr, &cbits); |
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|
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if (cnm_t != nm_t) |
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continue; |
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|
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if((nm_t==HM_HOST && !irccmp(td_conf->host, cidr)) || |
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(nm_t==HM_IPV4 && bits==cbits && match_ipv4(&addr, &caddr, bits)) |
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#ifdef IPV6 |
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|| (nm_t==HM_IPV6 && bits==cbits && match_ipv6(&addr, &caddr, bits)) |
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#endif |
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) |
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{ |
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dlinkDelete(td_node, &temporary_dlines); |
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delete_one_address_conf(td_conf->host, td_conf); |
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return 1; |
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} |
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} |
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|
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return 0; |
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} |
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|
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/* |
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** m_undline |
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** added May 28th 2000 by Toby Verrall <toot@melnet.co.uk> |
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** based totally on m_unkline |
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** added to hybrid-7 7/11/2000 --is |
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** |
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** parv[0] = sender nick |
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** parv[1] = dline to remove |
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*/ |
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static void |
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mo_undline(struct Client *client_p, struct Client *source_p, |
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int parc, char *parv[]) |
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{ |
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const char *cidr = NULL; |
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|
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if (!IsOperUnkline(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, "undline"); |
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return; |
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} |
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|
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cidr = parv[1]; |
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|
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if (remove_tdline_match(cidr)) |
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{ |
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sendto_one(source_p, |
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":%s NOTICE %s :Un-Dlined [%s] from temporary D-Lines", |
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me.name, source_p->name, cidr); |
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sendto_realops_flags(UMODE_ALL, L_ALL, |
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"%s has removed the temporary D-Line for: [%s]", |
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get_oper_name(source_p), cidr); |
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ilog(L_NOTICE, "%s removed temporary D-Line for [%s]", source_p->name, cidr); |
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return; |
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} |
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|
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if (remove_conf_line(DLINE_TYPE, source_p, cidr, NULL) > 0) |
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{ |
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sendto_one(source_p, ":%s NOTICE %s :D-Line for [%s] is removed", |
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me.name, source_p->name, cidr); |
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sendto_realops_flags(UMODE_ALL, L_ALL, |
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"%s has removed the D-Line for: [%s]", |
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get_oper_name(source_p), cidr); |
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ilog(L_NOTICE, "%s removed D-Line for [%s]", |
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get_oper_name(source_p), cidr); |
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} |
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else |
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sendto_one(source_p, ":%s NOTICE %s :No D-Line for [%s] found", |
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me.name, source_p->name, cidr); |
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} |
