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
  16 static const int zero, one = 1, max = INT_MAX;
  17
  18 ctl_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 };