LXR linux/security/keys/sysctl.c

   1/* Key management controls
   2 *
   3 * Copyright (C) 2008 Red Hat, Inc. All Rights Reserved.
   4 * Written by David Howells (dhowells@redhat.com)
   5 *
   6 * This program is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU General Public Licence
   8 * as published by the Free Software Foundation; either version
   9 * 2 of the Licence, or (at your option) any later version.
  10 */
  11
  12#include <linux/key.h>
  13#include <linux/sysctl.h>
  14#include "internal.h"
  15
  16static const int zero, one = 1, max = INT_MAX;
  17
  18ctl_table key_sysctls[] = {
  19        {
  20                .ctl_name = CTL_UNNUMBERED,
  21                .procname = "maxkeys",
  22                .data = &key_quota_maxkeys,
  23                .maxlen = sizeof(unsigned),
  24                .mode = 0644,
  25                .proc_handler = &proc_dointvec_minmax,
  26                .extra1 = (void *) &one,
  27                .extra2 = (void *) &max,
  28        },
  29        {
  30                .ctl_name = CTL_UNNUMBERED,
  31                .procname = "maxbytes",
  32                .data = &key_quota_maxbytes,
  33                .maxlen = sizeof(unsigned),
  34                .mode = 0644,
  35                .proc_handler = &proc_dointvec_minmax,
  36                .extra1 = (void *) &one,
  37                .extra2 = (void *) &max,
  38        },
  39        {
  40                .ctl_name = CTL_UNNUMBERED,
  41                .procname = "root_maxkeys",
  42                .data = &key_quota_root_maxkeys,
  43                .maxlen = sizeof(unsigned),
  44                .mode = 0644,
  45                .proc_handler = &proc_dointvec_minmax,
  46                .extra1 = (void *) &one,
  47                .extra2 = (void *) &max,
  48        },
  49        {
  50                .ctl_name = CTL_UNNUMBERED,
  51                .procname = "root_maxbytes",
  52                .data = &key_quota_root_maxbytes,
  53                .maxlen = sizeof(unsigned),
  54                .mode = 0644,
  55                .proc_handler = &proc_dointvec_minmax,
  56                .extra1 = (void *) &one,
  57                .extra2 = (void *) &max,
  58        },
  59        {
  60                .ctl_name = CTL_UNNUMBERED,
  61                .procname = "gc_delay",
  62                .data = &key_gc_delay,
  63                .maxlen = sizeof(unsigned),
  64                .mode = 0644,
  65                .proc_handler = &proc_dointvec_minmax,
  66                .extra1 = (void *) &zero,
  67                .extra2 = (void *) &max,
  68        },
  69        { .ctl_name = 0 }
  70};
  71