8.2.x/src/conf_resv.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 2001-2019 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 conf_resv.c
 * \brief Functions to reserve(jupe) a nick/channel.
 * \version $Id$
 */

#include "stdinc.h"
#include "list.h"
#include "send.h"
#include "client.h"
#include "memory.h"
#include "ircd.h"
#include "irc_string.h"
#include "ircd_defs.h"
#include "misc.h"
#include "conf.h"
#include "conf_resv.h"
#include "hostmask.h"


static dlink_list resv_chan_list;
static dlink_list resv_nick_list;


const dlink_list *
resv_chan_get_list(void)
{
  return &resv_chan_list;
}

const dlink_list *
resv_nick_get_list(void)
{
  return &resv_nick_list;
}

void
resv_delete(struct ResvItem *resv)
{
  while (resv->exempt_list.head)
  {
    struct ResvExemptItem *exempt = resv->exempt_list.head->data;

    dlinkDelete(&exempt->node, &resv->exempt_list);
    xfree(exempt->name);
    xfree(exempt->user);
    xfree(exempt->host);
    xfree(exempt);
  }

  dlinkDelete(&resv->node, resv->list);
  xfree(resv->mask);
  xfree(resv->reason);
  xfree(resv);
}

/* 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 ResvItem *
resv_make(const char *mask, const char *reason, const dlink_list *elist)
{
  dlink_list *list;

  if (IsChanPrefix(*mask))
    list = &resv_chan_list;
  else
    list = &resv_nick_list;

  struct ResvItem *resv = xcalloc(sizeof(*resv));
  resv->list = list;
  resv->mask = xstrdup(mask);
  resv->reason = xstrndup(reason, IRCD_MIN(strlen(reason), REASONLEN));
  dlinkAdd(resv, &resv->node, resv->list);

  if (elist)
  {
    dlink_node *node;

    DLINK_FOREACH(node, elist->head)
    {
      char nick[NICKLEN + 1];
      char user[USERLEN + 1];
      char host[HOSTLEN + 1];
      struct split_nuh_item nuh;
      char *s = node->data;

      nuh.nuhmask  = s;
      nuh.nickptr  = nick;
      nuh.userptr  = user;
      nuh.hostptr  = host;

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

      split_nuh(&nuh);

      struct ResvExemptItem *exempt = xcalloc(sizeof(*exempt));
      exempt->name = xstrdup(nick);
      exempt->user = xstrdup(user);
      exempt->host = xstrdup(host);
      exempt->type = parse_netmask(host, &exempt->addr, &exempt->bits);
      dlinkAdd(exempt, &exempt->node, &resv->exempt_list);
    }
  }

  return resv;
}

struct ResvItem *
resv_find(const char *name, int (*compare)(const char *, const char *))
{
  dlink_node *node;
  dlink_list *list;

  if (IsChanPrefix(*name))
    list = &resv_chan_list;
  else
    list = &resv_nick_list;

  DLINK_FOREACH(node, list->head)
  {
    struct ResvItem *resv = node->data;

    if (compare(resv->mask, name) == 0)
      return resv;
  }

  return NULL;
}

bool
resv_exempt_find(const struct Client *client_p, const struct ResvItem *resv)
{
  dlink_node *node;

  DLINK_FOREACH(node, resv->exempt_list.head)
  {
    const struct ResvExemptItem *exempt = node->data;

    if (match(exempt->name, client_p->name) == 0 && match(exempt->user, client_p->username) == 0)
    {
      switch (exempt->type)
      {
        case HM_HOST:
          if (match(exempt->host, client_p->host) == 0 || match(exempt->host, client_p->sockhost) == 0)
            return true;
          break;
        case HM_IPV4:
          if (client_p->ip.ss.ss_family == AF_INET)
            if (match_ipv4(&client_p->ip, &exempt->addr, exempt->bits))
              return true;
          break;
        case HM_IPV6:
          if (client_p->ip.ss.ss_family == AF_INET6)
            if (match_ipv6(&client_p->ip, &exempt->addr, exempt->bits))
              return true;
          break;
        default:
          assert(0);
      }
    }
  }

  return false;
}

void
resv_clear(void)
{
  dlink_list *tab[] = { &resv_chan_list, &resv_nick_list, NULL };

  for (dlink_list **list = tab; *list; ++list)
  {
    dlink_node *node, *node_next;

    DLINK_FOREACH_SAFE(node, node_next, (*list)->head)
    {
      struct ResvItem *resv = node->data;

      if (resv->in_database == false)
        resv_delete(resv);
    }
  }
}

void
resv_expire(void)
{
  dlink_list *tab[] = { &resv_chan_list, &resv_nick_list, NULL };

  for (dlink_list **list = tab; *list; ++list)
  {
    dlink_node *node, *node_next;

    DLINK_FOREACH_SAFE(node, node_next, (*list)->head)
    {
      struct ResvItem *resv = node->data;

      if (resv->expire == 0 || resv->expire > event_base->time.sec_real)
        continue;

      if (ConfigGeneral.tkline_expire_notices)
        sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE, "Temporary RESV for [%s] expired",
                             resv->mask);
      resv_delete(resv);
    }
  }
}
Revision:	8927
Committed:	Mon Apr 22 11:08:47 2019 UTC (4 years, 11 months ago) by michael
Content type:	text/x-csrc
File size:	5578 byte(s)
Log Message:	- Killed CurrentTime
#	Content
1	/*
2	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	*
4	* Copyright (c) 2001-2019 ircd-hybrid development team
5	*
6	* This program is free software; you can redistribute it and/or modify
7	* it under the terms of the GNU General Public License as published by
8	* the Free Software Foundation; either version 2 of the License, or
9	* (at your option) any later version.
10	*
11	* This program is distributed in the hope that it will be useful,
12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	* GNU General Public License for more details.
15	*
16	* You should have received a copy of the GNU General Public License
17	* along with this program; if not, write to the Free Software
18	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19	* USA
20	*/
21
22	/*! \file conf_resv.c
23	* \brief Functions to reserve(jupe) a nick/channel.
24	* \version $Id$
25	*/
26
27	#include "stdinc.h"
28	#include "list.h"
29	#include "send.h"
30	#include "client.h"
31	#include "memory.h"
32	#include "ircd.h"
33	#include "irc_string.h"
34	#include "ircd_defs.h"
35	#include "misc.h"
36	#include "conf.h"
37	#include "conf_resv.h"
38	#include "hostmask.h"
39
40
41	static dlink_list resv_chan_list;
42	static dlink_list resv_nick_list;
43
44
45	const dlink_list *
46	resv_chan_get_list(void)
47	{
48	return &resv_chan_list;
49	}
50
51	const dlink_list *
52	resv_nick_get_list(void)
53	{
54	return &resv_nick_list;
55	}
56
57	void
58	resv_delete(struct ResvItem *resv)
59	{
60	while (resv->exempt_list.head)
61	{
62	struct ResvExemptItem *exempt = resv->exempt_list.head->data;
63
64	dlinkDelete(&exempt->node, &resv->exempt_list);
65	xfree(exempt->name);
66	xfree(exempt->user);
67	xfree(exempt->host);
68	xfree(exempt);
69	}
70
71	dlinkDelete(&resv->node, resv->list);
72	xfree(resv->mask);
73	xfree(resv->reason);
74	xfree(resv);
75	}
76
77	/* create_resv()
78	*
79	* inputs - name of nick to create resv for
80	* - reason for resv
81	* - 1 if from ircd.conf, 0 if from elsewhere
82	* output - pointer to struct ResvNick
83	* side effects -
84	*/
85	struct ResvItem *
86	resv_make(const char mask, const char reason, const dlink_list *elist)
87	{
88	dlink_list *list;
89
90	if (IsChanPrefix(*mask))
91	list = &resv_chan_list;
92	else
93	list = &resv_nick_list;
94
95	struct ResvItem resv = xcalloc(sizeof(resv));
96	resv->list = list;
97	resv->mask = xstrdup(mask);
98	resv->reason = xstrndup(reason, IRCD_MIN(strlen(reason), REASONLEN));
99	dlinkAdd(resv, &resv->node, resv->list);
100
101	if (elist)
102	{
103	dlink_node *node;
104
105	DLINK_FOREACH(node, elist->head)
106	{
107	char nick[NICKLEN + 1];
108	char user[USERLEN + 1];
109	char host[HOSTLEN + 1];
110	struct split_nuh_item nuh;
111	char *s = node->data;
112
113	nuh.nuhmask = s;
114	nuh.nickptr = nick;
115	nuh.userptr = user;
116	nuh.hostptr = host;
117
118	nuh.nicksize = sizeof(nick);
119	nuh.usersize = sizeof(user);
120	nuh.hostsize = sizeof(host);
121
122	split_nuh(&nuh);
123
124	struct ResvExemptItem exempt = xcalloc(sizeof(exempt));
125	exempt->name = xstrdup(nick);
126	exempt->user = xstrdup(user);
127	exempt->host = xstrdup(host);
128	exempt->type = parse_netmask(host, &exempt->addr, &exempt->bits);
129	dlinkAdd(exempt, &exempt->node, &resv->exempt_list);
130	}
131	}
132
133	return resv;
134	}
135
136	struct ResvItem *
137	resv_find(const char name, int (compare)(const char , const char ))
138	{
139	dlink_node *node;
140	dlink_list *list;
141
142	if (IsChanPrefix(*name))
143	list = &resv_chan_list;
144	else
145	list = &resv_nick_list;
146
147	DLINK_FOREACH(node, list->head)
148	{
149	struct ResvItem *resv = node->data;
150
151	if (compare(resv->mask, name) == 0)
152	return resv;
153	}
154
155	return NULL;
156	}
157
158	bool
159	resv_exempt_find(const struct Client client_p, const struct ResvItem resv)
160	{
161	dlink_node *node;
162
163	DLINK_FOREACH(node, resv->exempt_list.head)
164	{
165	const struct ResvExemptItem *exempt = node->data;
166
167	if (match(exempt->name, client_p->name) == 0 && match(exempt->user, client_p->username) == 0)
168	{
169	switch (exempt->type)
170	{
171	case HM_HOST:
172	if (match(exempt->host, client_p->host) == 0 \|\| match(exempt->host, client_p->sockhost) == 0)
173	return true;
174	break;
175	case HM_IPV4:
176	if (client_p->ip.ss.ss_family == AF_INET)
177	if (match_ipv4(&client_p->ip, &exempt->addr, exempt->bits))
178	return true;
179	break;
180	case HM_IPV6:
181	if (client_p->ip.ss.ss_family == AF_INET6)
182	if (match_ipv6(&client_p->ip, &exempt->addr, exempt->bits))
183	return true;
184	break;
185	default:
186	assert(0);
187	}
188	}
189	}
190
191	return false;
192	}
193
194	void
195	resv_clear(void)
196	{
197	dlink_list *tab[] = { &resv_chan_list, &resv_nick_list, NULL };
198
199	for (dlink_list *list = tab; list; ++list)
200	{
201	dlink_node node, node_next;
202
203	DLINK_FOREACH_SAFE(node, node_next, (*list)->head)
204	{
205	struct ResvItem *resv = node->data;
206
207	if (resv->in_database == false)
208	resv_delete(resv);
209	}
210	}
211	}
212
213	void
214	resv_expire(void)
215	{
216	dlink_list *tab[] = { &resv_chan_list, &resv_nick_list, NULL };
217
218	for (dlink_list *list = tab; list; ++list)
219	{
220	dlink_node node, node_next;
221
222	DLINK_FOREACH_SAFE(node, node_next, (*list)->head)
223	{
224	struct ResvItem *resv = node->data;
225
226	if (resv->expire == 0 \|\| resv->expire > event_base->time.sec_real)
227	continue;
228
229	if (ConfigGeneral.tkline_expire_notices)
230	sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE, "Temporary RESV for [%s] expired",
231	resv->mask);
232	resv_delete(resv);
233	}
234	}
235	}