Puppet Class: selinux::config

Defined in:
manifests/config.pp

Summary

Configure the system to use SELinux on the system.

Overview

It is included in the main class ‘selinux`

Parameters:

  • mode (Optional[Enum['enforcing', 'permissive', 'disabled']]) (defaults to: undef)

    See main class

  • type (Optional[Enum['targeted', 'minimum', 'mls']]) (defaults to: undef)

    See main class



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
83
84
85
86
# File 'manifests/config.pp', line 10

class selinux::config (
  Optional[Enum['enforcing', 'permissive', 'disabled']] $mode = undef,
  Optional[Enum['targeted', 'minimum', 'mls']] $type          = undef,
) {
  assert_private()

  if ($mode == 'enforcing' and !$facts['os']['selinux']['enabled']) {
    # lint:ignore:140chars
    notice('SELinux is disabled. Forcing configuration to permissive to avoid problems. To disable this warning, explicitly set selinux::mode to permissive or disabled.')
    # lint:endignore
    $_real_mode = 'permissive'
  } else {
    $_real_mode = $mode
  }

  if $_real_mode {
    if $facts['os']['family'] == 'Debian' and !$facts['os']['selinux']['enabled'] {
      # Debian-based OSes also need to change the kernel boot parameters in the
      # appropriate version of GRUB.
      # See: https://wiki.debian.org/SELinux/Setup.
      exec { 'activate-selinux':
        command  => '/usr/sbin/selinux-activate',
        unless   => shell_join(['/usr/bin/grep', '-q', '^GRUB_CMDLINE_LINUX=.*security=selinux', '/etc/default/grub']),
        provider => 'shell',
      }
    }

    file_line { "set-selinux-config-to-${_real_mode}":
      path  => '/etc/selinux/config',
      line  => "SELINUX=${_real_mode}",
      match => '^SELINUX=\w+',
    }

    case $_real_mode {
      'permissive', 'disabled': {
        $sestatus = 'permissive'
        if $_real_mode == 'disabled' and $facts['os']['selinux']['current_mode'] == 'permissive' {
          notice('A reboot is required to fully disable SELinux. SELinux will operate in Permissive mode until a reboot')
        }
      }
      'enforcing': {
        $sestatus = 'enforcing'
      }
      default : {
        fail('You must specify a mode (enforced, permissive, or disabled) for selinux operation')
      }
    }

    # a complete relabeling is required when switching from disabled to
    # permissive or enforcing. Ensure the autorelabel trigger file is created.
    if $_real_mode in ['enforcing','permissive'] and !$facts['os']['selinux']['enabled'] {
      file { '/.autorelabel':
        ensure  => 'file',
        owner   => 'root',
        group   => 'root',
        # The contents of the file are interpreted on most OSes (at least EL7
        # and Debian 10) as extra options for fixfiles. Anything else causes an
        # argument error and a failure to relabel.
        content => '',
      }
    }

    exec { "change-selinux-status-to-${_real_mode}":
      command => "setenforce ${sestatus}",
      unless  => "getenforce | grep -Eqi '${sestatus}|disabled'",
      path    => '/bin:/sbin:/usr/bin:/usr/sbin',
    }
  }

  if $type {
    file_line { "set-selinux-config-type-to-${type}":
      path  => '/etc/selinux/config',
      line  => "SELINUXTYPE=${type}",
      match => '^SELINUXTYPE=\w+',
    }
  }
}