1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
/*
* (C) 2006 by Pablo Neira Ayuso <pablo@netfilter.org>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdio.h>
#include <sys/time.h>
#include "conntrackd.h"
#include "us-conntrack.h"
#include "cache.h"
#include "alarm.h"
static void timeout(struct alarm_list *a, void *data)
{
struct us_conntrack *u = data;
debug_ct(u->ct, "expired timeout");
cache_del(u->cache, u->ct);
}
static void timer_add(struct us_conntrack *u, void *data)
{
struct alarm_list *alarm = data;
init_alarm(alarm);
set_alarm_expiration_secs(alarm, CONFIG(cache_timeout));
set_alarm_data(alarm, u);
set_alarm_function(alarm, timeout);
add_alarm(alarm);
}
static void timer_update(struct us_conntrack *u, void *data)
{
struct alarm_list *alarm = data;
mod_alarm(alarm, CONFIG(cache_timeout));
}
static void timer_destroy(struct us_conntrack *u, void *data)
{
struct alarm_list *alarm = data;
del_alarm(alarm);
}
static int timer_dump(struct us_conntrack *u, void *data, char *buf, int type)
{
struct timeval tv, tmp;
struct alarm_list *alarm = data;
if (type == NFCT_O_XML)
return 0;
gettimeofday(&tv, NULL);
timersub(&tv, &alarm->tv, &tmp);
return sprintf(buf, " [expires in %ds]", tmp.tv_sec);
}
struct cache_feature timer_feature = {
.size = sizeof(struct alarm_list),
.add = timer_add,
.update = timer_update,
.destroy = timer_destroy,
.dump = timer_dump
};
|
