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99f6d61bda
Make SELinux depend on AUDIT as it requires the basic audit support to log permission denials at all. Note that AUDITSYSCALL remains optional for SELinux, although it can be useful in providing further information upon denials. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: James Morris <jmorris@namei.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
98 lines
3.9 KiB
Plaintext
98 lines
3.9 KiB
Plaintext
config SECURITY_SELINUX
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bool "NSA SELinux Support"
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depends on SECURITY_NETWORK && AUDIT && NET && INET
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default n
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help
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This selects NSA Security-Enhanced Linux (SELinux).
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You will also need a policy configuration and a labeled filesystem.
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You can obtain the policy compiler (checkpolicy), the utility for
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labeling filesystems (setfiles), and an example policy configuration
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from <http://www.nsa.gov/selinux/>.
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If you are unsure how to answer this question, answer N.
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config SECURITY_SELINUX_BOOTPARAM
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bool "NSA SELinux boot parameter"
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depends on SECURITY_SELINUX
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default n
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help
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This option adds a kernel parameter 'selinux', which allows SELinux
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to be disabled at boot. If this option is selected, SELinux
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functionality can be disabled with selinux=0 on the kernel
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command line. The purpose of this option is to allow a single
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kernel image to be distributed with SELinux built in, but not
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necessarily enabled.
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If you are unsure how to answer this question, answer N.
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config SECURITY_SELINUX_BOOTPARAM_VALUE
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int "NSA SELinux boot parameter default value"
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depends on SECURITY_SELINUX_BOOTPARAM
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range 0 1
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default 1
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help
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This option sets the default value for the kernel parameter
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'selinux', which allows SELinux to be disabled at boot. If this
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option is set to 0 (zero), the SELinux kernel parameter will
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default to 0, disabling SELinux at bootup. If this option is
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set to 1 (one), the SELinux kernel parameter will default to 1,
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enabling SELinux at bootup.
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If you are unsure how to answer this question, answer 1.
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config SECURITY_SELINUX_DISABLE
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bool "NSA SELinux runtime disable"
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depends on SECURITY_SELINUX
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default n
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help
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This option enables writing to a selinuxfs node 'disable', which
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allows SELinux to be disabled at runtime prior to the policy load.
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SELinux will then remain disabled until the next boot.
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This option is similar to the selinux=0 boot parameter, but is to
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support runtime disabling of SELinux, e.g. from /sbin/init, for
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portability across platforms where boot parameters are difficult
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to employ.
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If you are unsure how to answer this question, answer N.
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config SECURITY_SELINUX_DEVELOP
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bool "NSA SELinux Development Support"
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depends on SECURITY_SELINUX
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default y
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help
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This enables the development support option of NSA SELinux,
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which is useful for experimenting with SELinux and developing
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policies. If unsure, say Y. With this option enabled, the
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kernel will start in permissive mode (log everything, deny nothing)
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unless you specify enforcing=1 on the kernel command line. You
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can interactively toggle the kernel between enforcing mode and
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permissive mode (if permitted by the policy) via /selinux/enforce.
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config SECURITY_SELINUX_AVC_STATS
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bool "NSA SELinux AVC Statistics"
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depends on SECURITY_SELINUX
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default y
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help
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This option collects access vector cache statistics to
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/selinux/avc/cache_stats, which may be monitored via
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tools such as avcstat.
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config SECURITY_SELINUX_CHECKREQPROT_VALUE
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int "NSA SELinux checkreqprot default value"
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depends on SECURITY_SELINUX
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range 0 1
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default 1
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help
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This option sets the default value for the 'checkreqprot' flag
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that determines whether SELinux checks the protection requested
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by the application or the protection that will be applied by the
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kernel (including any implied execute for read-implies-exec) for
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mmap and mprotect calls. If this option is set to 0 (zero),
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SELinux will default to checking the protection that will be applied
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by the kernel. If this option is set to 1 (one), SELinux will
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default to checking the protection requested by the application.
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The checkreqprot flag may be changed from the default via the
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'checkreqprot=' boot parameter. It may also be changed at runtime
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via /selinux/checkreqprot if authorized by policy.
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If you are unsure how to answer this question, answer 1.
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