164 строки
6.3 KiB
Plaintext
164 строки
6.3 KiB
Plaintext
config SECURITY_SELINUX
|
|
bool "NSA SELinux Support"
|
|
depends on SECURITY_NETWORK && AUDIT && NET && INET
|
|
select NETWORK_SECMARK
|
|
default n
|
|
help
|
|
This selects NSA Security-Enhanced Linux (SELinux).
|
|
You will also need a policy configuration and a labeled filesystem.
|
|
You can obtain the policy compiler (checkpolicy), the utility for
|
|
labeling filesystems (setfiles), and an example policy configuration
|
|
from <http://www.nsa.gov/selinux/>.
|
|
If you are unsure how to answer this question, answer N.
|
|
|
|
config SECURITY_SELINUX_BOOTPARAM
|
|
bool "NSA SELinux boot parameter"
|
|
depends on SECURITY_SELINUX
|
|
default n
|
|
help
|
|
This option adds a kernel parameter 'selinux', which allows SELinux
|
|
to be disabled at boot. If this option is selected, SELinux
|
|
functionality can be disabled with selinux=0 on the kernel
|
|
command line. The purpose of this option is to allow a single
|
|
kernel image to be distributed with SELinux built in, but not
|
|
necessarily enabled.
|
|
|
|
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
|
|
default n
|
|
help
|
|
This option enables writing to a selinuxfs node 'disable', which
|
|
allows SELinux to be disabled at runtime prior to the policy load.
|
|
SELinux will then remain disabled until the next boot.
|
|
This option is similar to the selinux=0 boot parameter, but is to
|
|
support runtime disabling of SELinux, e.g. from /sbin/init, for
|
|
portability across platforms where boot parameters are difficult
|
|
to employ.
|
|
|
|
If you are unsure how to answer this question, answer N.
|
|
|
|
config SECURITY_SELINUX_DEVELOP
|
|
bool "NSA SELinux Development Support"
|
|
depends on SECURITY_SELINUX
|
|
default y
|
|
help
|
|
This enables the development support option of NSA SELinux,
|
|
which is useful for experimenting with SELinux and developing
|
|
policies. If unsure, say Y. With this option enabled, the
|
|
kernel will start in permissive mode (log everything, deny nothing)
|
|
unless you specify enforcing=1 on the kernel command line. You
|
|
can interactively toggle the kernel between enforcing mode and
|
|
permissive mode (if permitted by the policy) via /selinux/enforce.
|
|
|
|
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 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 Fedora 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.
|
|
|