8.2.x/modules/m_dline.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1997-2015 ircd-hybrid development team
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
 *  USA
 */

/*! \file m_dline.c
 * \brief Includes required functions for processing the DLINE command.
 * \version $Id$
 */

#include "stdinc.h"
#include "list.h"
#include "client.h"
#include "irc_string.h"
#include "conf.h"
#include "ircd.h"
#include "hostmask.h"
#include "numeric.h"
#include "log.h"
#include "misc.h"
#include "send.h"
#include "server.h"
#include "parse.h"
#include "modules.h"
#include "conf_db.h"
#include "memory.h"


static void
dline_check(struct AddressRec *arec)
{
  dlink_node *node = NULL, *node_next = NULL;

  DLINK_FOREACH_SAFE(node, node_next, local_client_list.head)
  {
    struct Client *client_p = node->data;

    if (IsDead(client_p))
      continue;

    switch (arec->masktype)
    {
      case HM_IPV4:
        if (client_p->connection->aftype == AF_INET)
          if (match_ipv4(&client_p->connection->ip, &arec->Mask.ipa.addr, arec->Mask.ipa.bits))
            conf_try_ban(client_p, arec->conf);
        break;
      case HM_IPV6:
        if (client_p->connection->aftype == AF_INET6)
          if (match_ipv6(&client_p->connection->ip, &arec->Mask.ipa.addr, arec->Mask.ipa.bits))
            conf_try_ban(client_p, arec->conf);
        break;
      default: break;
    }
  }

  DLINK_FOREACH_SAFE(node, node_next, unknown_list.head)
  {
    struct Client *client_p = node->data;

    if (IsDead(client_p))
      continue;

    switch (arec->masktype)
    {
      case HM_IPV4:
        if (client_p->connection->aftype == AF_INET)
          if (match_ipv4(&client_p->connection->ip, &arec->Mask.ipa.addr, arec->Mask.ipa.bits))
            conf_try_ban(client_p, arec->conf);
        break;
      case HM_IPV6:
        if (client_p->connection->aftype == AF_INET6)
          if (match_ipv6(&client_p->connection->ip, &arec->Mask.ipa.addr, arec->Mask.ipa.bits))
            conf_try_ban(client_p, arec->conf);
        break;
      default: break;
    }
  }
}


/* dline_add()
 *
 * inputs       -
 * output       - NONE
 * side effects - dline as given is placed
 */
static void
dline_add(struct Client *source_p, const char *addr, const char *reason,
          time_t tdline_time)
{
  char buf[IRCD_BUFSIZE];
  struct MaskItem *conf;

  if (tdline_time)
    snprintf(buf, sizeof(buf), "Temporary D-line %d min. - %.*s (%s)",
             (int)(tdline_time/60), REASONLEN, reason, smalldate(0));
  else
    snprintf(buf, sizeof(buf), "%.*s (%s)", REASONLEN, reason, smalldate(0));

  conf = conf_make(CONF_DLINE);
  conf->host = xstrdup(addr);
  conf->reason = xstrdup(buf);
  conf->setat = CurrentTime;
  SetConfDatabase(conf);

  if (tdline_time)
  {
    conf->until = CurrentTime + tdline_time;

    if (IsClient(source_p))
      sendto_one_notice(source_p, &me, ":Added temporary %d min. D-Line [%s]",
                        tdline_time/60, conf->host);

    sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
                         "%s added temporary %d min. D-Line for [%s] [%s]",
                         get_oper_name(source_p), tdline_time/60,
                         conf->host, conf->reason);
    ilog(LOG_TYPE_DLINE, "%s added temporary %d min. D-Line for [%s] [%s]",
         get_oper_name(source_p), tdline_time/60, conf->host, conf->reason);
  }
  else
  {
    if (IsClient(source_p))
      sendto_one_notice(source_p, &me, ":Added D-Line [%s]", conf->host);

    sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
                         "%s added D-Line for [%s] [%s]",
                         get_oper_name(source_p), conf->host, conf->reason);
    ilog(LOG_TYPE_DLINE, "%s added D-Line for [%s] [%s]",
         get_oper_name(source_p), conf->host, conf->reason);
  }

  dline_check(add_conf_by_address(CONF_DLINE, conf));
}

/* mo_dline()
 *
 * inputs       - pointer to server
 *              - pointer to client
 *              - parameter count
 *              - parameter list
 * output       -
 * side effects - D line is added
 *
 */
static int
mo_dline(struct Client *source_p, int parc, char *parv[])
{
  char *dlhost = NULL, *reason = NULL;
  char *target_server = NULL;
  const struct Client *target_p = NULL;
  struct irc_ssaddr daddr;
  struct MaskItem *conf = NULL;
  time_t tdline_time = 0;
  int bits = 0, aftype = 0, t = 0;
  char hostip[HOSTIPLEN + 1];

  if (!HasOFlag(source_p, OPER_FLAG_DLINE))
  {
    sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "dline");
    return 0;
  }

  if (!parse_aline("DLINE", source_p, parc, parv, AWILD, &dlhost,
                   NULL, &tdline_time, &target_server, &reason))
    return 0;

  if (target_server)
  {
    sendto_match_servs(source_p, target_server, CAP_DLN, "DLINE %s %lu %s :%s",
                       target_server, (unsigned long)tdline_time,
                       dlhost, reason);

    /* Allow ON to apply local kline as well if it matches */
    if (match(target_server, me.name))
      return 0;
  }
  else
    cluster_a_line(source_p, "DLINE", CAP_DLN, SHARED_DLINE,
                   "%d %s :%s", tdline_time, dlhost, reason);

  if ((t = parse_netmask(dlhost, NULL, NULL)) == HM_HOST)
  {
    if ((target_p = find_chasing(source_p, dlhost)) == NULL)
      return 0;  /* find_chasing sends ERR_NOSUCHNICK */

    if (!MyConnect(target_p))
    {
      sendto_one_notice(source_p, &me, ":Cannot DLINE nick on another server");
      return 0;
    }

    if (IsExemptKline(target_p))
    {
      sendto_one_notice(source_p, &me, ":%s is E-lined", target_p->name);
      return 0;
    }

    getnameinfo((const struct sockaddr *)&target_p->connection->ip,
                target_p->connection->ip.ss_len, hostip,
                sizeof(hostip), NULL, 0, NI_NUMERICHOST);
    dlhost = hostip;
  }

  switch (parse_netmask(dlhost, &daddr, &bits))
  {
    case HM_IPV4:
      if ((unsigned int)bits < ConfigGeneral.dline_min_cidr)
      {
        sendto_one_notice(source_p, &me, ":For safety, bitmasks less than %u require conf access.",
                          ConfigGeneral.dline_min_cidr);
        return 0;
      }

      aftype = AF_INET;
      break;
    case HM_IPV6:
      if ((unsigned int)bits < ConfigGeneral.dline_min_cidr6)
      {
        sendto_one_notice(source_p, &me, ":For safety, bitmasks less than %u require conf access.",
                          ConfigGeneral.dline_min_cidr6);
        return 0;
      }

      aftype = AF_INET6;
      break;
    default:  /* HM_HOST */
     return 0;
  }

  if ((conf = find_conf_by_address(NULL, &daddr, CONF_DLINE, aftype, NULL, NULL, 1)))
  {
    sendto_one_notice(source_p, &me, ":[%s] already D-lined by [%s] - %s",
                      dlhost, conf->host, conf->reason);
    return 0;
  }

  dline_add(source_p, dlhost, reason, tdline_time);
  return 0;
}

static int
ms_dline(struct Client *source_p, int parc, char *parv[])
{
  const char *dlhost, *reason;
  struct irc_ssaddr daddr;
  struct MaskItem *conf = NULL;
  time_t tdline_time = 0;
  int bits = 0, aftype = 0;

  if (parc != 5 || EmptyString(parv[4]))
    return 0;

  /* parv[0]  parv[1]        parv[2]      parv[3]  parv[4] */
  /* command  target_server  tdline_time  host     reason  */
  sendto_match_servs(source_p, parv[1], CAP_DLN, "DLINE %s %s %s :%s",
                     parv[1], parv[2], parv[3], parv[4]);

  if (match(parv[1], me.name))
    return 0;

  tdline_time = valid_tkline(parv[2], TK_SECONDS);
  dlhost = parv[3];
  reason = parv[4];

  if (HasFlag(source_p, FLAGS_SERVICE) ||
      find_matching_name_conf(CONF_ULINE, source_p->servptr->name,
                              source_p->username, source_p->host,
                              SHARED_DLINE))
  {
    switch (parse_netmask(dlhost, &daddr, &bits))
    {
      case HM_IPV4:
        if ((unsigned int)bits < ConfigGeneral.dline_min_cidr)
        {
          if (IsClient(source_p))
            sendto_one_notice(source_p, &me, ":For safety, bitmasks less than %u require conf access.",
                              ConfigGeneral.dline_min_cidr);
          return 0;
        }

        aftype = AF_INET;
        break;
      case HM_IPV6:
        if ((unsigned int)bits < ConfigGeneral.dline_min_cidr6)
        {
          if (IsClient(source_p))
            sendto_one_notice(source_p, &me, ":For safety, bitmasks less than %u require conf access.",
                              ConfigGeneral.dline_min_cidr6);
          return 0;
        }

        aftype = AF_INET6;
        break;
      default:  /* HM_HOST */
       return 0;
    }

    if ((conf = find_conf_by_address(NULL, &daddr, CONF_DLINE, aftype, NULL, NULL, 1)))
    {
      if (IsClient(source_p))
        sendto_one_notice(source_p, &me, ":[%s] already D-lined by [%s] - %s",
                          dlhost, conf->host, conf->reason);
      return 0;
    }

    dline_add(source_p, dlhost, reason, tdline_time);
  }

  return 0;
}

static struct Message dline_msgtab =
{
  .cmd = "DLINE",
  .args_min = 2,
  .args_max = MAXPARA,
  .handlers[UNREGISTERED_HANDLER] = m_unregistered,
  .handlers[CLIENT_HANDLER] = m_not_oper,
  .handlers[SERVER_HANDLER] = ms_dline,
  .handlers[ENCAP_HANDLER] = m_ignore,
  .handlers[OPER_HANDLER] = mo_dline
};

static void
module_init(void)
{
  mod_add_cmd(&dline_msgtab);
  add_capability("DLN", CAP_DLN);
}

static void
module_exit(void)
{
  mod_del_cmd(&dline_msgtab);
  delete_capability("DLN");
}

struct module module_entry =
{
  .version = "$Revision$",
  .modinit = module_init,
  .modexit = module_exit,
};
Revision:	5880
Committed:	Sun May 3 16:01:42 2015 UTC (11 years, 2 months ago) by michael
Content type:	text/x-csrc
File size:	10187 byte(s)
Log Message:	- Use C99-style initializers in all struct Message items - Removed MFLG_SLOW - Removed DUMMY_HANDLER
#	User	Rev	Content
1	michael	1058	/*
2	michael	2810	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	michael	1058	*
4	michael	5346	* Copyright (c) 1997-2015 ircd-hybrid development team
5	michael	1058	*
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	michael	4564	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19	michael	1058	* USA
20			*/
21
22	michael	2810	/*! \file m_dline.c
23	michael	3348	* \brief Includes required functions for processing the DLINE command.
24	michael	2810	* \version $Id$
25			*/
26
27	michael	1058	#include "stdinc.h"
28			#include "list.h"
29			#include "client.h"
30			#include "irc_string.h"
31	michael	1632	#include "conf.h"
32	michael	1058	#include "ircd.h"
33			#include "hostmask.h"
34			#include "numeric.h"
35	michael	1309	#include "log.h"
36	michael	3347	#include "misc.h"
37	michael	1058	#include "send.h"
38	michael	3347	#include "server.h"
39	michael	1058	#include "parse.h"
40			#include "modules.h"
41	michael	1622	#include "conf_db.h"
42	michael	1666	#include "memory.h"
43	michael	1058
44
45	michael	3930	static void
46	michael	5831	dline_check(struct AddressRec *arec)
47	michael	3930	{
48	michael	4816	dlink_node node = NULL, node_next = NULL;
49	michael	3930
50	michael	4816	DLINK_FOREACH_SAFE(node, node_next, local_client_list.head)
51	michael	3930	{
52	michael	4816	struct Client *client_p = node->data;
53	michael	3930
54			if (IsDead(client_p))
55			continue;
56
57			switch (arec->masktype)
58			{
59			case HM_IPV4:
60	michael	4589	if (client_p->connection->aftype == AF_INET)
61			if (match_ipv4(&client_p->connection->ip, &arec->Mask.ipa.addr, arec->Mask.ipa.bits))
62	michael	3930	conf_try_ban(client_p, arec->conf);
63			break;
64			case HM_IPV6:
65	michael	4589	if (client_p->connection->aftype == AF_INET6)
66			if (match_ipv6(&client_p->connection->ip, &arec->Mask.ipa.addr, arec->Mask.ipa.bits))
67	michael	3930	conf_try_ban(client_p, arec->conf);
68			break;
69			default: break;
70			}
71			}
72
73	michael	4816	DLINK_FOREACH_SAFE(node, node_next, unknown_list.head)
74	michael	3930	{
75	michael	4816	struct Client *client_p = node->data;
76	michael	3930
77			if (IsDead(client_p))
78			continue;
79
80			switch (arec->masktype)
81			{
82			case HM_IPV4:
83	michael	4589	if (client_p->connection->aftype == AF_INET)
84			if (match_ipv4(&client_p->connection->ip, &arec->Mask.ipa.addr, arec->Mask.ipa.bits))
85	michael	3930	conf_try_ban(client_p, arec->conf);
86			break;
87			case HM_IPV6:
88	michael	4589	if (client_p->connection->aftype == AF_INET6)
89			if (match_ipv6(&client_p->connection->ip, &arec->Mask.ipa.addr, arec->Mask.ipa.bits))
90	michael	3930	conf_try_ban(client_p, arec->conf);
91			break;
92			default: break;
93			}
94			}
95			}
96
97
98	michael	5830	/* dline_add()
99	michael	1058	*
100			* inputs -
101			* output - NONE
102	michael	5830	* side effects - dline as given is placed
103	michael	1058	*/
104			static void
105	michael	5874	dline_add(struct Client source_p, const char addr, const char *reason,
106			time_t tdline_time)
107	michael	1058	{
108	michael	5830	char buf[IRCD_BUFSIZE];
109			struct MaskItem *conf;
110
111			if (tdline_time)
112			snprintf(buf, sizeof(buf), "Temporary D-line %d min. - %.*s (%s)",
113			(int)(tdline_time/60), REASONLEN, reason, smalldate(0));
114			else
115			snprintf(buf, sizeof(buf), "%.*s (%s)", REASONLEN, reason, smalldate(0));
116
117			conf = conf_make(CONF_DLINE);
118			conf->host = xstrdup(addr);
119			conf->reason = xstrdup(buf);
120			conf->setat = CurrentTime;
121			SetConfDatabase(conf);
122
123			if (tdline_time)
124	michael	1622	{
125	michael	5830	conf->until = CurrentTime + tdline_time;
126	michael	4640
127			if (IsClient(source_p))
128			sendto_one_notice(source_p, &me, ":Added temporary %d min. D-Line [%s]",
129	michael	5830	tdline_time/60, conf->host);
130	michael	4889
131	michael	1622	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
132			"%s added temporary %d min. D-Line for [%s] [%s]",
133	michael	5830	get_oper_name(source_p), tdline_time/60,
134	michael	1632	conf->host, conf->reason);
135	michael	1622	ilog(LOG_TYPE_DLINE, "%s added temporary %d min. D-Line for [%s] [%s]",
136	michael	5830	get_oper_name(source_p), tdline_time/60, conf->host, conf->reason);
137	michael	1622	}
138			else
139			{
140	michael	4640	if (IsClient(source_p))
141			sendto_one_notice(source_p, &me, ":Added D-Line [%s]", conf->host);
142
143	michael	1622	sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
144			"%s added D-Line for [%s] [%s]",
145	michael	1632	get_oper_name(source_p), conf->host, conf->reason);
146	michael	1622	ilog(LOG_TYPE_DLINE, "%s added D-Line for [%s] [%s]",
147	michael	1632	get_oper_name(source_p), conf->host, conf->reason);
148	michael	1622	}
149
150	michael	5831	dline_check(add_conf_by_address(CONF_DLINE, conf));
151	michael	1058	}
152
153			/* mo_dline()
154			*
155			* inputs - pointer to server
156			* - pointer to client
157			* - parameter count
158			* - parameter list
159			* output -
160			* side effects - D line is added
161			*
162			*/
163	michael	2820	static int
164	michael	3156	mo_dline(struct Client source_p, int parc, char parv[])
165	michael	1058	{
166	michael	1622	char dlhost = NULL, reason = NULL;
167	michael	1301	char *target_server = NULL;
168	michael	1058	const struct Client *target_p = NULL;
169			struct irc_ssaddr daddr;
170	michael	4889	struct MaskItem *conf = NULL;
171	michael	5830	time_t tdline_time = 0;
172	michael	1644	int bits = 0, aftype = 0, t = 0;
173	michael	1398	char hostip[HOSTIPLEN + 1];
174	michael	1058
175	michael	1301	if (!HasOFlag(source_p, OPER_FLAG_DLINE))
176	michael	1058	{
177	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "dline");
178	michael	2820	return 0;
179	michael	1058	}
180
181	michael	5775	if (!parse_aline("DLINE", source_p, parc, parv, AWILD, &dlhost,
182	michael	5830	NULL, &tdline_time, &target_server, &reason))
183	michael	2820	return 0;
184	michael	1058
185	michael	3368	if (target_server)
186	michael	1301	{
187	michael	2807	sendto_match_servs(source_p, target_server, CAP_DLN, "DLINE %s %lu %s :%s",
188	michael	5830	target_server, (unsigned long)tdline_time,
189	michael	2807	dlhost, reason);
190	michael	1301
191			/* Allow ON to apply local kline as well if it matches */
192	michael	1652	if (match(target_server, me.name))
193	michael	2820	return 0;
194	michael	1301	}
195			else
196			cluster_a_line(source_p, "DLINE", CAP_DLN, SHARED_DLINE,
197	michael	5830	"%d %s :%s", tdline_time, dlhost, reason);
198	michael	1301
199	michael	5821	if ((t = parse_netmask(dlhost, NULL, NULL)) == HM_HOST)
200	michael	1058	{
201	michael	3192	if ((target_p = find_chasing(source_p, dlhost)) == NULL)
202	michael	3736	return 0; /* find_chasing sends ERR_NOSUCHNICK */
203	michael	1058
204			if (!MyConnect(target_p))
205			{
206	michael	3118	sendto_one_notice(source_p, &me, ":Cannot DLINE nick on another server");
207	michael	2820	return 0;
208	michael	1058	}
209
210			if (IsExemptKline(target_p))
211			{
212	michael	4935	sendto_one_notice(source_p, &me, ":%s is E-lined", target_p->name);
213	michael	2820	return 0;
214	michael	1058	}
215
216	michael	5050	getnameinfo((const struct sockaddr *)&target_p->connection->ip,
217	michael	4589	target_p->connection->ip.ss_len, hostip,
218	michael	1123	sizeof(hostip), NULL, 0, NI_NUMERICHOST);
219	michael	1058	dlhost = hostip;
220			}
221
222	michael	5820	switch (parse_netmask(dlhost, &daddr, &bits))
223	michael	1058	{
224	michael	5810	case HM_IPV4:
225			if ((unsigned int)bits < ConfigGeneral.dline_min_cidr)
226			{
227			sendto_one_notice(source_p, &me, ":For safety, bitmasks less than %u require conf access.",
228			ConfigGeneral.dline_min_cidr);
229			return 0;
230			}
231
232			aftype = AF_INET;
233			break;
234			case HM_IPV6:
235			if ((unsigned int)bits < ConfigGeneral.dline_min_cidr6)
236			{
237			sendto_one_notice(source_p, &me, ":For safety, bitmasks less than %u require conf access.",
238			ConfigGeneral.dline_min_cidr6);
239			return 0;
240			}
241
242			aftype = AF_INET6;
243			break;
244			default: /* HM_HOST */
245			return 0;
246	michael	1058	}
247
248	michael	5810	if ((conf = find_conf_by_address(NULL, &daddr, CONF_DLINE, aftype, NULL, NULL, 1)))
249	michael	1058	{
250	michael	5810	sendto_one_notice(source_p, &me, ":[%s] already D-lined by [%s] - %s",
251			dlhost, conf->host, conf->reason);
252	michael	2820	return 0;
253	michael	1058	}
254
255	michael	5830	dline_add(source_p, dlhost, reason, tdline_time);
256	michael	2820	return 0;
257	michael	1058	}
258
259	michael	2820	static int
260	michael	3156	ms_dline(struct Client source_p, int parc, char parv[])
261	michael	1301	{
262	michael	5830	const char dlhost, reason;
263	michael	1301	struct irc_ssaddr daddr;
264	michael	4889	struct MaskItem *conf = NULL;
265	michael	5874	time_t tdline_time = 0;
266	michael	5817	int bits = 0, aftype = 0;
267	michael	1301
268			if (parc != 5 \|\| EmptyString(parv[4]))
269	michael	2820	return 0;
270	michael	1301
271			/* parv[0] parv[1] parv[2] parv[3] parv[4] */
272	michael	5830	/* command target_server tdline_time host reason */
273	michael	4889	sendto_match_servs(source_p, parv[1], CAP_DLN, "DLINE %s %s %s :%s",
274	michael	1301	parv[1], parv[2], parv[3], parv[4]);
275
276	michael	1652	if (match(parv[1], me.name))
277	michael	2820	return 0;
278	michael	1301
279	michael	5830	tdline_time = valid_tkline(parv[2], TK_SECONDS);
280	michael	1301	dlhost = parv[3];
281			reason = parv[4];
282
283	michael	2810	if (HasFlag(source_p, FLAGS_SERVICE) \|\|
284			find_matching_name_conf(CONF_ULINE, source_p->servptr->name,
285	michael	1301	source_p->username, source_p->host,
286			SHARED_DLINE))
287			{
288	michael	5817	switch (parse_netmask(dlhost, &daddr, &bits))
289	michael	1301	{
290	michael	5810	case HM_IPV4:
291			if ((unsigned int)bits < ConfigGeneral.dline_min_cidr)
292			{
293			if (IsClient(source_p))
294			sendto_one_notice(source_p, &me, ":For safety, bitmasks less than %u require conf access.",
295			ConfigGeneral.dline_min_cidr);
296			return 0;
297			}
298
299			aftype = AF_INET;
300			break;
301			case HM_IPV6:
302			if ((unsigned int)bits < ConfigGeneral.dline_min_cidr6)
303			{
304			if (IsClient(source_p))
305			sendto_one_notice(source_p, &me, ":For safety, bitmasks less than %u require conf access.",
306			ConfigGeneral.dline_min_cidr6);
307			return 0;
308			}
309
310			aftype = AF_INET6;
311			break;
312			default: /* HM_HOST */
313			return 0;
314	michael	1301	}
315
316	michael	5810	if ((conf = find_conf_by_address(NULL, &daddr, CONF_DLINE, aftype, NULL, NULL, 1)))
317	michael	1301	{
318	michael	5810	if (IsClient(source_p))
319	michael	3110	sendto_one_notice(source_p, &me, ":[%s] already D-lined by [%s] - %s",
320	michael	5810	dlhost, conf->host, conf->reason);
321	michael	2820	return 0;
322	michael	1301	}
323
324	michael	5830	dline_add(source_p, dlhost, reason, tdline_time);
325	michael	1301	}
326	michael	2820
327			return 0;
328	michael	1301	}
329
330	michael	2810	static struct Message dline_msgtab =
331			{
332	michael	5880	.cmd = "DLINE",
333			.args_min = 2,
334			.args_max = MAXPARA,
335			.handlers[UNREGISTERED_HANDLER] = m_unregistered,
336			.handlers[CLIENT_HANDLER] = m_not_oper,
337			.handlers[SERVER_HANDLER] = ms_dline,
338			.handlers[ENCAP_HANDLER] = m_ignore,
339			.handlers[OPER_HANDLER] = mo_dline
340	michael	1230	};
341
342			static void
343			module_init(void)
344			{
345			mod_add_cmd(&dline_msgtab);
346	michael	5795	add_capability("DLN", CAP_DLN);
347	michael	1230	}
348
349			static void
350			module_exit(void)
351			{
352			mod_del_cmd(&dline_msgtab);
353	michael	1301	delete_capability("DLN");
354	michael	1230	}
355
356	michael	2810	struct module module_entry =
357			{
358	michael	1230	.version = "$Revision$",
359			.modinit = module_init,
360			.modexit = module_exit,
361			};