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
|
// SPDX-License-Identifier: GPL-2.0-or-later
/* Key management controls
*
* Copyright (C) 2008 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*/
#include <linux/key.h>
#include <linux/sysctl.h>
#include "internal.h"
static struct ctl_table key_sysctls[] = {
{
.procname = "maxkeys",
.data = &key_quota_maxkeys,
.maxlen = sizeof(unsigned),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = (void *) SYSCTL_ONE,
.extra2 = (void *) SYSCTL_INT_MAX,
},
{
.procname = "maxbytes",
.data = &key_quota_maxbytes,
.maxlen = sizeof(unsigned),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = (void *) SYSCTL_ONE,
.extra2 = (void *) SYSCTL_INT_MAX,
},
{
.procname = "root_maxkeys",
.data = &key_quota_root_maxkeys,
.maxlen = sizeof(unsigned),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = (void *) SYSCTL_ONE,
.extra2 = (void *) SYSCTL_INT_MAX,
},
{
.procname = "root_maxbytes",
.data = &key_quota_root_maxbytes,
.maxlen = sizeof(unsigned),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = (void *) SYSCTL_ONE,
.extra2 = (void *) SYSCTL_INT_MAX,
},
{
.procname = "gc_delay",
.data = &key_gc_delay,
.maxlen = sizeof(unsigned),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = (void *) SYSCTL_ZERO,
.extra2 = (void *) SYSCTL_INT_MAX,
},
#ifdef CONFIG_PERSISTENT_KEYRINGS
{
.procname = "persistent_keyring_expiry",
.data = &persistent_keyring_expiry,
.maxlen = sizeof(unsigned),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = (void *) SYSCTL_ZERO,
.extra2 = (void *) SYSCTL_INT_MAX,
},
#endif
};
static int __init init_security_keys_sysctls(void)
{
register_sysctl_init("kernel/keys", key_sysctls);
return 0;
}
early_initcall(init_security_keys_sysctls);
|
