trunk/src/resv.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  resv.c: Functions to reserve(jupe) a nick/channel.
 *
 *  Copyright (C) 2001-2002 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  USA
 *
 *  $Id$
 */

#include "stdinc.h"
#include "list.h"
#include "ircd.h"
#include "send.h"
#include "client.h"   
#include "memory.h"
#include "numeric.h"
#include "resv.h"
#include "hash.h"
#include "irc_string.h"
#include "ircd_defs.h"
#include "s_misc.h"
#include "conf.h"
#include "conf_db.h"
#include "channel.h"
#include "hostmask.h"

dlink_list resv_channel_list = { NULL, NULL, 0 };


/* create_resv()
 *
 * inputs       - name of nick to create resv for
 *              - reason for resv
 *              - 1 if from ircd.conf, 0 if from elsewhere
 * output       - pointer to struct ResvNick
 * side effects -
 */
struct MaskItem *
create_resv(const char *name, const char *reason, const dlink_list *list)
{
  struct MaskItem *conf = NULL;
  enum maskitem_type type;

  if (name == NULL || reason == NULL)
    return NULL;

  if (IsChanPrefix(*name))
    type = CONF_CRESV;
  else
    type = CONF_NRESV;

  if (find_exact_name_conf(type, NULL, name, NULL, NULL))
    return NULL;

  conf = conf_make(type);
  conf->name = xstrdup(name);
  conf->reason = xstrndup(reason, IRCD_MIN(strlen(reason), REASONLEN));

  if (list)
  {
    if (strlen(name) == 2 && IsAlpha(*(name + 1) && IsAlpha(*(name + 2))))
    {
      struct exempt *exptr = MyMalloc(sizeof(*exptr));

      exptr->name = xstrdup(name);
      exptr->coid = GeoIP_id_by_code(name);
      dlinkAdd(exptr, &exptr->node, &conf->exempt_list);
    }
    else
    {
      dlink_node *ptr = NULL;

      DLINK_FOREACH(ptr, list->head)
      {
        char nick[NICKLEN + 1];
        char user[USERLEN + 1];
        char host[HOSTLEN + 1];
        struct split_nuh_item nuh;
        struct exempt *exptr = NULL;

        nuh.nuhmask  = ptr->data;
        nuh.nickptr  = nick;
        nuh.userptr  = user;
        nuh.hostptr  = host;

        nuh.nicksize = sizeof(name);
        nuh.usersize = sizeof(user);
        nuh.hostsize = sizeof(host);

        split_nuh(&nuh);

        exptr = MyMalloc(sizeof(*exptr));
        exptr->name = xstrdup(name);
        exptr->user = xstrdup(user);
        exptr->host = xstrdup(host);
        exptr->type = parse_netmask(host, &exptr->addr, &exptr->bits);
        dlinkAdd(exptr, &exptr->node, &conf->exempt_list);
      }
    }
  }

  return conf;
}

int
resv_find_exempt(const struct Client *who, const struct MaskItem *conf)
{
  const dlink_node *ptr = NULL;

  DLINK_FOREACH(ptr, conf->exempt_list.head)
  {
    const struct exempt *exptr = ptr->data;

    if (exptr->coid)
    {
      if (exptr->coid == who->localClient->country_id)
        return 1;
    }
    else if (!match(exptr->name, who->name) && !match(exptr->user, who->username))
    {
      switch (exptr->type)
      {
        case HM_HOST:
          if (!match(exptr->host, who->host) || !match(exptr->host, who->sockhost))
            return 1;
          break;
        case HM_IPV4:
          if (who->localClient->aftype == AF_INET)
            if (match_ipv4(&who->localClient->ip, &exptr->addr, exptr->bits))
              return 1;
          break;
#ifdef IPV6
        case HM_IPV6:
          if (who->localClient->aftype == AF_INET6)
            if (match_ipv6(&who->localClient->ip, &exptr->addr, exptr->bits))
              return 1;
          break;
#endif
        default:
          assert(0);
      }
    }
  }

  return 0;
}

/* match_find_resv()
 *
 * inputs       - pointer to name
 * output       - pointer to a struct ResvChannel
 * side effects - Finds a reserved channel whose name matches 'name',
 *                if can't find one returns NULL.
 */
struct MaskItem *
match_find_resv(const char *name)
{
  dlink_node *ptr = NULL;

  if (EmptyString(name))
    return NULL;

  DLINK_FOREACH(ptr, resv_channel_list.head)
  {
    struct MaskItem *conf = ptr->data;

    if (!match(conf->name, name))
      return conf;
  }

  return NULL;
}

/* report_resv()
 *
 * inputs       - pointer to client pointer to report to.
 * output       - NONE
 * side effects - report all resvs to client.
 */
void
report_resv(struct Client *source_p)
{
  dlink_node *ptr = NULL;
  struct MaskItem *conf = NULL;

  DLINK_FOREACH(ptr, resv_channel_list.head)
  {
    conf = ptr->data;
    sendto_one(source_p, form_str(RPL_STATSQLINE),
               me.name, source_p->name,
               conf->until ? 'q' : 'Q', conf->count,
               conf->name, conf->reason);
  }

  DLINK_FOREACH(ptr, nresv_items.head)
  {
    conf = ptr->data;
    sendto_one(source_p, form_str(RPL_STATSQLINE),
               me.name, source_p->name,
               conf->until ? 'q' : 'Q', conf->count,
               conf->name, conf->reason);
  }
}

/* valid_wild_card_simple()
 *
 * inputs       - data to check for sufficient non-wildcard characters
 * outputs      - 1 if valid, else 0
 * side effects - none
 */
int
valid_wild_card_simple(const char *data)
{
  const unsigned char *p = (const unsigned char *)data;
  int nonwild = 0;

  while (*p != '\0')
  {
    if ((*p == '\\' && *++p) || (*p && !IsMWildChar(*p)))
      if (++nonwild == ConfigFileEntry.min_nonwildcard_simple)
        return 1;
    if (*p != '\0')
      ++p;
  }

  return 0;
}
Revision:	1858
Committed:	Thu Apr 25 15:00:52 2013 UTC (12 years, 4 months ago) by michael
Content type:	text/x-csrc
File size:	5927 byte(s)
Log Message:	- Added basic support for libGeoIP - Added exempt configuration option to resv{} blocks
#	User	Rev	Content
1	adx	30	/*
2			* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3			* resv.c: Functions to reserve(jupe) a nick/channel.
4			*
5			* Copyright (C) 2001-2002 Hybrid Development Team
6			*
7			* This program is free software; you can redistribute it and/or modify
8			* it under the terms of the GNU General Public License as published by
9			* the Free Software Foundation; either version 2 of the License, or
10			* (at your option) any later version.
11			*
12			* This program is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			* GNU General Public License for more details.
16			*
17			* You should have received a copy of the GNU General Public License
18			* along with this program; if not, write to the Free Software
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20			* USA
21			*
22	knight	31	* $Id$
23	adx	30	*/
24
25			#include "stdinc.h"
26	michael	1011	#include "list.h"
27	adx	30	#include "ircd.h"
28			#include "send.h"
29			#include "client.h"
30			#include "memory.h"
31			#include "numeric.h"
32			#include "resv.h"
33			#include "hash.h"
34			#include "irc_string.h"
35			#include "ircd_defs.h"
36	michael	1646	#include "s_misc.h"
37	michael	1309	#include "conf.h"
38	michael	1622	#include "conf_db.h"
39	michael	1858	#include "channel.h"
40			#include "hostmask.h"
41	adx	30
42			dlink_list resv_channel_list = { NULL, NULL, 0 };
43
44
45	michael	1858	/* create_resv()
46	adx	30	*
47	michael	1858	* inputs - name of nick to create resv for
48	adx	30	* - reason for resv
49	michael	1858	* - 1 if from ircd.conf, 0 if from elsewhere
50			* output - pointer to struct ResvNick
51	adx	30	* side effects -
52			*/
53	michael	1632	struct MaskItem *
54	michael	1858	create_resv(const char name, const char reason, const dlink_list *list)
55	adx	30	{
56	michael	1632	struct MaskItem *conf = NULL;
57	michael	1858	enum maskitem_type type;
58	adx	30
59			if (name == NULL \|\| reason == NULL)
60			return NULL;
61
62	michael	1858	if (IsChanPrefix(*name))
63			type = CONF_CRESV;
64			else
65			type = CONF_NRESV;
66
67			if (find_exact_name_conf(type, NULL, name, NULL, NULL))
68	adx	30	return NULL;
69
70	michael	1858	conf = conf_make(type);
71	michael	1646	conf->name = xstrdup(name);
72			conf->reason = xstrndup(reason, IRCD_MIN(strlen(reason), REASONLEN));
73	adx	30
74	michael	1858	if (list)
75			{
76			if (strlen(name) == 2 && IsAlpha((name + 1) && IsAlpha((name + 2))))
77			{
78			struct exempt exptr = MyMalloc(sizeof(exptr));
79
80			exptr->name = xstrdup(name);
81			exptr->coid = GeoIP_id_by_code(name);
82			dlinkAdd(exptr, &exptr->node, &conf->exempt_list);
83			}
84			else
85			{
86			dlink_node *ptr = NULL;
87
88			DLINK_FOREACH(ptr, list->head)
89			{
90			char nick[NICKLEN + 1];
91			char user[USERLEN + 1];
92			char host[HOSTLEN + 1];
93			struct split_nuh_item nuh;
94			struct exempt *exptr = NULL;
95
96			nuh.nuhmask = ptr->data;
97			nuh.nickptr = nick;
98			nuh.userptr = user;
99			nuh.hostptr = host;
100
101			nuh.nicksize = sizeof(name);
102			nuh.usersize = sizeof(user);
103			nuh.hostsize = sizeof(host);
104
105			split_nuh(&nuh);
106
107			exptr = MyMalloc(sizeof(*exptr));
108			exptr->name = xstrdup(name);
109			exptr->user = xstrdup(user);
110			exptr->host = xstrdup(host);
111			exptr->type = parse_netmask(host, &exptr->addr, &exptr->bits);
112			dlinkAdd(exptr, &exptr->node, &conf->exempt_list);
113			}
114			}
115			}
116
117	adx	30	return conf;
118			}
119
120	michael	1858	int
121			resv_find_exempt(const struct Client who, const struct MaskItem conf)
122	adx	30	{
123	michael	1858	const dlink_node *ptr = NULL;
124	adx	30
125	michael	1858	DLINK_FOREACH(ptr, conf->exempt_list.head)
126			{
127			const struct exempt *exptr = ptr->data;
128	adx	30
129	michael	1858	if (exptr->coid)
130			{
131			if (exptr->coid == who->localClient->country_id)
132			return 1;
133			}
134			else if (!match(exptr->name, who->name) && !match(exptr->user, who->username))
135			{
136			switch (exptr->type)
137			{
138			case HM_HOST:
139			if (!match(exptr->host, who->host) \|\| !match(exptr->host, who->sockhost))
140			return 1;
141			break;
142			case HM_IPV4:
143			if (who->localClient->aftype == AF_INET)
144			if (match_ipv4(&who->localClient->ip, &exptr->addr, exptr->bits))
145			return 1;
146			break;
147			#ifdef IPV6
148			case HM_IPV6:
149			if (who->localClient->aftype == AF_INET6)
150			if (match_ipv6(&who->localClient->ip, &exptr->addr, exptr->bits))
151			return 1;
152			break;
153			#endif
154			default:
155			assert(0);
156			}
157			}
158			}
159	adx	30
160	michael	1858	return 0;
161	adx	30	}
162
163			/* match_find_resv()
164			*
165			* inputs - pointer to name
166			* output - pointer to a struct ResvChannel
167			* side effects - Finds a reserved channel whose name matches 'name',
168			* if can't find one returns NULL.
169			*/
170	michael	1632	struct MaskItem *
171	adx	30	match_find_resv(const char *name)
172			{
173			dlink_node *ptr = NULL;
174
175			if (EmptyString(name))
176			return NULL;
177
178			DLINK_FOREACH(ptr, resv_channel_list.head)
179			{
180	michael	1632	struct MaskItem *conf = ptr->data;
181	adx	30
182	michael	1825	if (!match(conf->name, name))
183	michael	1632	return conf;
184	adx	30	}
185
186			return NULL;
187			}
188
189			/* report_resv()
190			*
191			* inputs - pointer to client pointer to report to.
192			* output - NONE
193			* side effects - report all resvs to client.
194			*/
195			void
196			report_resv(struct Client *source_p)
197			{
198	michael	1632	dlink_node *ptr = NULL;
199			struct MaskItem *conf = NULL;
200	adx	30
201			DLINK_FOREACH(ptr, resv_channel_list.head)
202			{
203	michael	1632	conf = ptr->data;
204	michael	1834	sendto_one(source_p, form_str(RPL_STATSQLINE),
205	adx	30	me.name, source_p->name,
206	michael	1687	conf->until ? 'q' : 'Q', conf->count,
207	michael	1632	conf->name, conf->reason);
208	adx	30	}
209
210			DLINK_FOREACH(ptr, nresv_items.head)
211			{
212	michael	1649	conf = ptr->data;
213	michael	1834	sendto_one(source_p, form_str(RPL_STATSQLINE),
214	adx	30	me.name, source_p->name,
215	michael	1687	conf->until ? 'q' : 'Q', conf->count,
216	michael	1632	conf->name, conf->reason);
217	adx	30	}
218			}
219
220			/* valid_wild_card_simple()
221			*
222			* inputs - data to check for sufficient non-wildcard characters
223			* outputs - 1 if valid, else 0
224			* side effects - none
225			*/
226			int
227			valid_wild_card_simple(const char *data)
228			{
229			const unsigned char p = (const unsigned char )data;
230			int nonwild = 0;
231
232			while (*p != '\0')
233			{
234			if ((p == '\\' && ++p) \|\| (p && !IsMWildChar(p)))
235			if (++nonwild == ConfigFileEntry.min_nonwildcard_simple)
236			return 1;
237			if (*p != '\0')
238			++p;
239			}
240
241			return 0;
242			}