LXR linux/security/keys/sysctl.c

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/* Key management controls
   3 *
   4 * Copyright (C) 2008 Red Hat, Inc. All Rights Reserved.
   5 * Written by David Howells (dhowells@redhat.com)
   6 */
   7
   8#include <linux/key.h>
   9#include <linux/sysctl.h>
  10#include "internal.h"
  11
  12struct ctl_table key_sysctls[] = {
  13        {
  14                .procname = "maxkeys",
  15                .data = &key_quota_maxkeys,
  16                .maxlen = sizeof(unsigned),
  17                .mode = 0644,
  18                .proc_handler = proc_dointvec_minmax,
  19                .extra1 = (void *) SYSCTL_ONE,
  20                .extra2 = (void *) SYSCTL_INT_MAX,
  21        },
  22        {
  23                .procname = "maxbytes",
  24                .data = &key_quota_maxbytes,
  25                .maxlen = sizeof(unsigned),
  26                .mode = 0644,
  27                .proc_handler = proc_dointvec_minmax,
  28                .extra1 = (void *) SYSCTL_ONE,
  29                .extra2 = (void *) SYSCTL_INT_MAX,
  30        },
  31        {
  32                .procname = "root_maxkeys",
  33                .data = &key_quota_root_maxkeys,
  34                .maxlen = sizeof(unsigned),
  35                .mode = 0644,
  36                .proc_handler = proc_dointvec_minmax,
  37                .extra1 = (void *) SYSCTL_ONE,
  38                .extra2 = (void *) SYSCTL_INT_MAX,
  39        },
  40        {
  41                .procname = "root_maxbytes",
  42                .data = &key_quota_root_maxbytes,
  43                .maxlen = sizeof(unsigned),
  44                .mode = 0644,
  45                .proc_handler = proc_dointvec_minmax,
  46                .extra1 = (void *) SYSCTL_ONE,
  47                .extra2 = (void *) SYSCTL_INT_MAX,
  48        },
  49        {
  50                .procname = "gc_delay",
  51                .data = &key_gc_delay,
  52                .maxlen = sizeof(unsigned),
  53                .mode = 0644,
  54                .proc_handler = proc_dointvec_minmax,
  55                .extra1 = (void *) SYSCTL_ZERO,
  56                .extra2 = (void *) SYSCTL_INT_MAX,
  57        },
  58#ifdef CONFIG_PERSISTENT_KEYRINGS
  59        {
  60                .procname = "persistent_keyring_expiry",
  61                .data = &persistent_keyring_expiry,
  62                .maxlen = sizeof(unsigned),
  63                .mode = 0644,
  64                .proc_handler = proc_dointvec_minmax,
  65                .extra1 = (void *) SYSCTL_ZERO,
  66                .extra2 = (void *) SYSCTL_INT_MAX,
  67        },
  68#endif
  69        { }
  70};
  71