config SECURITY_SELINUX
bool "NSA SELinux Support"
- depends on SECURITY
+ depends on SECURITY_NETWORK && AUDIT && NET && INET
+ select NETWORK_SECMARK
default n
help
This selects NSA Security-Enhanced Linux (SELinux).
If you are unsure how to answer this question, answer N.
+config SECURITY_SELINUX_BOOTPARAM_VALUE
+ int "NSA SELinux boot parameter default value"
+ depends on SECURITY_SELINUX_BOOTPARAM
+ range 0 1
+ default 1
+ help
+ This option sets the default value for the kernel parameter
+ 'selinux', which allows SELinux to be disabled at boot. If this
+ option is set to 0 (zero), the SELinux kernel parameter will
+ default to 0, disabling SELinux at bootup. If this option is
+ set to 1 (one), the SELinux kernel parameter will default to 1,
+ enabling SELinux at bootup.
+
+ If you are unsure how to answer this question, answer 1.
+
config SECURITY_SELINUX_DISABLE
bool "NSA SELinux runtime disable"
depends on SECURITY_SELINUX
can interactively toggle the kernel between enforcing mode and
permissive mode (if permitted by the policy) via /selinux/enforce.
-config SECURITY_SELINUX_MLS
- bool "NSA SELinux MLS policy (EXPERIMENTAL)"
- depends on SECURITY_SELINUX && EXPERIMENTAL
+config SECURITY_SELINUX_AVC_STATS
+ bool "NSA SELinux AVC Statistics"
+ depends on SECURITY_SELINUX
+ default y
+ help
+ This option collects access vector cache statistics to
+ /selinux/avc/cache_stats, which may be monitored via
+ tools such as avcstat.
+
+config SECURITY_SELINUX_CHECKREQPROT_VALUE
+ int "NSA SELinux checkreqprot default value"
+ depends on SECURITY_SELINUX
+ range 0 1
+ default 1
+ help
+ This option sets the default value for the 'checkreqprot' flag
+ that determines whether SELinux checks the protection requested
+ by the application or the protection that will be applied by the
+ kernel (including any implied execute for read-implies-exec) for
+ mmap and mprotect calls. If this option is set to 0 (zero),
+ SELinux will default to checking the protection that will be applied
+ by the kernel. If this option is set to 1 (one), SELinux will
+ default to checking the protection requested by the application.
+ The checkreqprot flag may be changed from the default via the
+ 'checkreqprot=' boot parameter. It may also be changed at runtime
+ via /selinux/checkreqprot if authorized by policy.
+
+ If you are unsure how to answer this question, answer 1.
+
+config SECURITY_SELINUX_ENABLE_SECMARK_DEFAULT
+ bool "NSA SELinux enable new secmark network controls by default"
+ depends on SECURITY_SELINUX
+ default n
+ help
+ This option determines whether the new secmark-based network
+ controls will be enabled by default. If not, the old internal
+ per-packet controls will be enabled by default, preserving
+ old behavior.
+
+ If you enable the new controls, you will need updated
+ SELinux userspace libraries, tools and policy. Typically,
+ your distribution will provide these and enable the new controls
+ in the kernel they also distribute.
+
+ Note that this option can be overridden at boot with the
+ selinux_compat_net parameter, and after boot via
+ /selinux/compat_net. See Documentation/kernel-parameters.txt
+ for details on this parameter.
+
+ If you enable the new network controls, you will likely
+ also require the SECMARK and CONNSECMARK targets, as
+ well as any conntrack helpers for protocols which you
+ wish to control.
+
+ If you are unsure what to do here, select N.
+
+config SECURITY_SELINUX_POLICYDB_VERSION_MAX
+ bool "NSA SELinux maximum supported policy format version"
+ depends on SECURITY_SELINUX
default n
help
- This enables the NSA SELinux Multi-Level Security (MLS) policy in
- addition to the default RBAC/TE policy. This policy is
- experimental and has not been configured for use. Unless you
- specifically want to experiment with MLS, say N.
+ This option enables the maximum policy format version supported
+ by SELinux to be set to a particular value. This value is reported
+ to userspace via /selinux/policyvers and used at policy load time.
+ It can be adjusted downward to support legacy userland (init) that
+ does not correctly handle kernels that support newer policy versions.
+
+ Examples:
+ For the Fedora Core 3 or 4 Linux distributions, enable this option
+ and set the value via the next option. For Fedore Core 5 and later,
+ do not enable this option.
+
+ If you are unsure how to answer this question, answer N.
+
+config SECURITY_SELINUX_POLICYDB_VERSION_MAX_VALUE
+ int "NSA SELinux maximum supported policy format version value"
+ depends on SECURITY_SELINUX_POLICYDB_VERSION_MAX
+ range 15 21
+ default 19
+ help
+ This option sets the value for the maximum policy format version
+ supported by SELinux.
+
+ Examples:
+ For Fedora Core 3, use 18.
+ For Fedora Core 4, use 19.
+
+ If you are unsure how to answer this question, look for the
+ policy format version supported by your policy toolchain, by
+ running 'checkpolicy -V'. Or look at what policy you have
+ installed under /etc/selinux/$SELINUXTYPE/policy, where
+ SELINUXTYPE is defined in your /etc/selinux/config.
+