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
77
78
79
80
81
82
| #include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/sysctl.h>
#include <linux/timer.h>
int value;
static struct ctl_table debug_table[] = {
{
.ctl_name = CTL_UNNUMBERED,
.procname = "value",
.data = &value,
.maxlen = sizeof(value),
.mode = 0644,
.proc_handler = &proc_dointvec, },
{ },
};
static struct ctl_table ws_dir_table[] = {
{
.ctl_name = CTL_UNNUMBERED,
.procname = "debug",
.mode = 0555,
.child = debug_table, },
{ },
};
static struct ctl_table ipv4_dir_table[] = {
{
.ctl_name = NET_IPV4,
.procname = "ipv4",
.mode = 0555,
.child = ws_dir_table, },
{ },
};
static ctl_table net_dir_table[] = {
{
.ctl_name = CTL_NET,
.procname = "net",
.mode = 0555,
.child = ipv4_dir_table, },
{ },
};
struct timer_list timer_last_stat;
static void output_value(unsigned long data)
{
printk("value = %d\n", value);
mod_timer(&timer_last_stat, jiffies+HZ*5);
}
struct ctl_table_header *ctl_header = NULL;
static int __init file_test_init(void)
{
printk("sysctl test init\n");
value = 111;
ctl_header= register_sysctl_table (net_dir_table, 0);
if(!ctl_header){
printk(KERN_ERR"SYNPROXY: sp_sysctl_init() calls failed.");
return -1;
}
setup_timer(&timer_last_stat, output_value, 0);
mod_timer(&timer_last_stat, jiffies+HZ*5);
return 0;
}
static void __exit file_test_exit(void)
{
if (ctl_header)
unregister_sysctl_table(ctl_header);
del_timer(&timer_last_stat);
printk("sysctl test exit\n");
}
module_init(file_test_init);
module_exit(file_test_exit);
MODULE_LICENSE("GPL");
|
