security/selinux/Kconfig

   1 config SECURITY_SELINUX
   2         bool "NSA SELinux Support"
   3         depends on SECURITY_NETWORK && AUDIT && NET && INET
   4         select NETWORK_SECMARK
   5         default n
   6         help
   7           This selects NSA Security-Enhanced Linux (SELinux).
   8           You will also need a policy configuration and a labeled filesystem.
   9           If you are unsure how to answer this question, answer N.
  10
  11 config SECURITY_SELINUX_BOOTPARAM
  12         bool "NSA SELinux boot parameter"
  13         depends on SECURITY_SELINUX
  14         default n
  15         help
  16           This option adds a kernel parameter 'selinux', which allows SELinux
  17           to be disabled at boot.  If this option is selected, SELinux
  18           functionality can be disabled with selinux=0 on the kernel
  19           command line.  The purpose of this option is to allow a single
  20           kernel image to be distributed with SELinux built in, but not
  21           necessarily enabled.
  22
  23           If you are unsure how to answer this question, answer N.
  24
  25 config SECURITY_SELINUX_BOOTPARAM_VALUE
  26         int "NSA SELinux boot parameter default value"
  27         depends on SECURITY_SELINUX_BOOTPARAM
  28         range 0 1
  29         default 1
  30         help
  31           This option sets the default value for the kernel parameter
  32           'selinux', which allows SELinux to be disabled at boot.  If this
  33           option is set to 0 (zero), the SELinux kernel parameter will
  34           default to 0, disabling SELinux at bootup.  If this option is
  35           set to 1 (one), the SELinux kernel parameter will default to 1,
  36           enabling SELinux at bootup.
  37
  38           If you are unsure how to answer this question, answer 1.
  39
  40 config SECURITY_SELINUX_DISABLE
  41         bool "NSA SELinux runtime disable"
  42         depends on SECURITY_SELINUX
  43         default n
  44         help
  45           This option enables writing to a selinuxfs node 'disable', which
  46           allows SELinux to be disabled at runtime prior to the policy load.
  47           SELinux will then remain disabled until the next boot.
  48           This option is similar to the selinux=0 boot parameter, but is to
  49           support runtime disabling of SELinux, e.g. from /sbin/init, for
  50           portability across platforms where boot parameters are difficult
  51           to employ.
  52
  53           If you are unsure how to answer this question, answer N.
  54
  55 config SECURITY_SELINUX_DEVELOP
  56         bool "NSA SELinux Development Support"
  57         depends on SECURITY_SELINUX
  58         default y
  59         help
  60           This enables the development support option of NSA SELinux,
  61           which is useful for experimenting with SELinux and developing
  62           policies.  If unsure, say Y.  With this option enabled, the
  63           kernel will start in permissive mode (log everything, deny nothing)
  64           unless you specify enforcing=1 on the kernel command line.  You
  65           can interactively toggle the kernel between enforcing mode and
  66           permissive mode (if permitted by the policy) via /selinux/enforce.
  67
  68 config SECURITY_SELINUX_AVC_STATS
  69         bool "NSA SELinux AVC Statistics"
  70         depends on SECURITY_SELINUX
  71         default y
  72         help
  73           This option collects access vector cache statistics to
  74           /selinux/avc/cache_stats, which may be monitored via
  75           tools such as avcstat.
  76
  77 config SECURITY_SELINUX_CHECKREQPROT_VALUE
  78         int "NSA SELinux checkreqprot default value"
  79         depends on SECURITY_SELINUX
  80         range 0 1
  81         default 0
  82         help
  83           This option sets the default value for the 'checkreqprot' flag
  84           that determines whether SELinux checks the protection requested
  85           by the application or the protection that will be applied by the
  86           kernel (including any implied execute for read-implies-exec) for
  87           mmap and mprotect calls.  If this option is set to 0 (zero),
  88           SELinux will default to checking the protection that will be applied
  89           by the kernel.  If this option is set to 1 (one), SELinux will
  90           default to checking the protection requested by the application.
  91           The checkreqprot flag may be changed from the default via the
  92           'checkreqprot=' boot parameter.  It may also be changed at runtime
  93           via /selinux/checkreqprot if authorized by policy.
  94
  95           If you are unsure how to answer this question, answer 0.