de0a5345a5
* 'for-linus' of git://github.com/richardweinberger/linux: (90 commits)
um: fix ubd cow size
um: Fix kmalloc argument order in um/vdso/vma.c
um: switch to use of drivers/Kconfig
UserModeLinux-HOWTO.txt: fix a typo
UserModeLinux-HOWTO.txt: remove ^H characters
um: we need sys/user.h only on i386
um: merge delay_{32,64}.c
um: distribute exports to where exported stuff is defined
um: kill system-um.h
um: generic ftrace.h will do...
um: segment.h is x86-only and needed only there
um: asm/pda.h is not needed anymore
um: hw_irq.h can go generic as well
um: switch to generic-y
um: clean Kconfig up a bit
um: a couple of missing dependencies...
um: kill useless argument of free_chan() and free_one_chan()
um: unify ptrace_user.h
um: unify KSTK_...
um: fix gcov build breakage
...
57 lines
1.7 KiB
Plaintext
57 lines
1.7 KiB
Plaintext
# IBM Integrity Measurement Architecture
|
|
#
|
|
config IMA
|
|
bool "Integrity Measurement Architecture(IMA)"
|
|
depends on SECURITY
|
|
select INTEGRITY
|
|
select SECURITYFS
|
|
select CRYPTO
|
|
select CRYPTO_HMAC
|
|
select CRYPTO_MD5
|
|
select CRYPTO_SHA1
|
|
select TCG_TPM if !S390 && !UML
|
|
select TCG_TIS if TCG_TPM
|
|
help
|
|
The Trusted Computing Group(TCG) runtime Integrity
|
|
Measurement Architecture(IMA) maintains a list of hash
|
|
values of executables and other sensitive system files,
|
|
as they are read or executed. If an attacker manages
|
|
to change the contents of an important system file
|
|
being measured, we can tell.
|
|
|
|
If your system has a TPM chip, then IMA also maintains
|
|
an aggregate integrity value over this list inside the
|
|
TPM hardware, so that the TPM can prove to a third party
|
|
whether or not critical system files have been modified.
|
|
Read <http://www.usenix.org/events/sec04/tech/sailer.html>
|
|
to learn more about IMA.
|
|
If unsure, say N.
|
|
|
|
config IMA_MEASURE_PCR_IDX
|
|
int
|
|
depends on IMA
|
|
range 8 14
|
|
default 10
|
|
help
|
|
IMA_MEASURE_PCR_IDX determines the TPM PCR register index
|
|
that IMA uses to maintain the integrity aggregate of the
|
|
measurement list. If unsure, use the default 10.
|
|
|
|
config IMA_AUDIT
|
|
bool
|
|
depends on IMA
|
|
default y
|
|
help
|
|
This option adds a kernel parameter 'ima_audit', which
|
|
allows informational auditing messages to be enabled
|
|
at boot. If this option is selected, informational integrity
|
|
auditing messages can be enabled with 'ima_audit=1' on
|
|
the kernel command line.
|
|
|
|
config IMA_LSM_RULES
|
|
bool
|
|
depends on IMA && AUDIT && (SECURITY_SELINUX || SECURITY_SMACK)
|
|
default y
|
|
help
|
|
Disabling this option will disregard LSM based policy rules.
|