[mirror_ubuntu-bionic-kernel.git] / security / integrity / ima / Kconfig

# 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.
Commit	Line	Data
3323eec9 MZ	1	# IBM Integrity Measurement Architecture
	2	#
	3	config IMA
	4	bool "Integrity Measurement Architecture(IMA)"
6c21a7fb	5	depends on SECURITY
f381c272	6	select INTEGRITY
3323eec9 MZ	7	select SECURITYFS
	8	select CRYPTO
	9	select CRYPTO_HMAC
	10	select CRYPTO_MD5
	11	select CRYPTO_SHA1
3369465e	12	select TCG_TPM if !S390 && !UML
ba0c1709	13	select TCG_TIS if TCG_TPM
3323eec9 MZ	14	help
	15	The Trusted Computing Group(TCG) runtime Integrity
	16	Measurement Architecture(IMA) maintains a list of hash
	17	values of executables and other sensitive system files,
	18	as they are read or executed. If an attacker manages
	19	to change the contents of an important system file
	20	being measured, we can tell.
	21
	22	If your system has a TPM chip, then IMA also maintains
	23	an aggregate integrity value over this list inside the
	24	TPM hardware, so that the TPM can prove to a third party
	25	whether or not critical system files have been modified.
	26	Read <http://www.usenix.org/events/sec04/tech/sailer.html>
	27	to learn more about IMA.
	28	If unsure, say N.
	29
	30	config IMA_MEASURE_PCR_IDX
	31	int
	32	depends on IMA
	33	range 8 14
	34	default 10
	35	help
	36	IMA_MEASURE_PCR_IDX determines the TPM PCR register index
	37	that IMA uses to maintain the integrity aggregate of the
	38	measurement list. If unsure, use the default 10.
	39
	40	config IMA_AUDIT
	41	bool
	42	depends on IMA
	43	default y
	44	help
	45	This option adds a kernel parameter 'ima_audit', which
	46	allows informational auditing messages to be enabled
	47	at boot. If this option is selected, informational integrity
	48	auditing messages can be enabled with 'ima_audit=1' on
	49	the kernel command line.
	50
4af4662f MZ	51	config IMA_LSM_RULES
4af4662f MZ	52	bool
b53fab9d	53	depends on IMA && AUDIT && (SECURITY_SELINUX \|\| SECURITY_SMACK)
4af4662f MZ	54	default y
4af4662f MZ	55	help
b53fab9d	56	Disabling this option will disregard LSM based policy rules.