[linux-2.6-block.git] / security / integrity / Kconfig

#
config INTEGRITY
	bool "Integrity subsystem"
	depends on SECURITY
	default y
	help
	  This option enables the integrity subsystem, which is comprised
	  of a number of different components including the Integrity
	  Measurement Architecture (IMA), Extended Verification Module
	  (EVM), IMA-appraisal extension, digital signature verification
	  extension and audit measurement log support.

	  Each of these components can be enabled/disabled separately.
	  Refer to the individual components for additional details.

if INTEGRITY

config INTEGRITY_SIGNATURE
	bool "Digital signature verification using multiple keyrings"
	depends on KEYS
	default n
	select SIGNATURE
	help
	  This option enables digital signature verification support
	  using multiple keyrings. It defines separate keyrings for each
	  of the different use cases - evm, ima, and modules.
	  Different keyrings improves search performance, but also allow
	  to "lock" certain keyring to prevent adding new keys.
	  This is useful for evm and module keyrings, when keys are
	  usually only added from initramfs.

config INTEGRITY_ASYMMETRIC_KEYS
	bool "Enable asymmetric keys support"
	depends on INTEGRITY_SIGNATURE
	default n
        select ASYMMETRIC_KEY_TYPE
        select ASYMMETRIC_PUBLIC_KEY_SUBTYPE
        select PUBLIC_KEY_ALGO_RSA
        select CRYPTO_RSA
        select X509_CERTIFICATE_PARSER
	help
	  This option enables digital signature verification using
	  asymmetric keys.

config INTEGRITY_TRUSTED_KEYRING
	bool "Require all keys on the integrity keyrings be signed"
	depends on SYSTEM_TRUSTED_KEYRING
	depends on INTEGRITY_ASYMMETRIC_KEYS
	default y
	help
	   This option requires that all keys added to the .ima and
	   .evm keyrings be signed by a key on the system trusted
	   keyring.

config INTEGRITY_AUDIT
	bool "Enables integrity auditing support "
	depends on AUDIT
	default y
	help
	  In addition to enabling integrity auditing support, this
	  option adds a kernel parameter 'integrity_audit', which
	  controls the level of integrity auditing messages.
	  0 - basic integrity auditing messages (default)
	  1 - additional integrity auditing messages

	  Additional informational integrity auditing messages would
	  be enabled by specifying 'integrity_audit=1' on the kernel
	  command line.

source security/integrity/ima/Kconfig
source security/integrity/evm/Kconfig

endif   # if INTEGRITY
Commit	Line	Data
f381c272 MZ	1	#
f381c272 MZ	2	config INTEGRITY
7ef84e65 DK	3	bool "Integrity subsystem"
	4	depends on SECURITY
	5	default y
	6	help
	7	This option enables the integrity subsystem, which is comprised
	8	of a number of different components including the Integrity
	9	Measurement Architecture (IMA), Extended Verification Module
	10	(EVM), IMA-appraisal extension, digital signature verification
	11	extension and audit measurement log support.
	12
	13	Each of these components can be enabled/disabled separately.
	14	Refer to the individual components for additional details.
	15
	16	if INTEGRITY
f381c272	17
f1be242c	18	config INTEGRITY_SIGNATURE
6341e62b	19	bool "Digital signature verification using multiple keyrings"
7ef84e65	20	depends on KEYS
8607c501	21	default n
5e8898e9	22	select SIGNATURE
8607c501 DK	23	help
	24	This option enables digital signature verification support
	25	using multiple keyrings. It defines separate keyrings for each
	26	of the different use cases - evm, ima, and modules.
	27	Different keyrings improves search performance, but also allow
	28	to "lock" certain keyring to prevent adding new keys.
	29	This is useful for evm and module keyrings, when keys are
	30	usually only added from initramfs.
	31
1ae8f41c	32	config INTEGRITY_ASYMMETRIC_KEYS
6341e62b	33	bool "Enable asymmetric keys support"
1ae8f41c DK	34	depends on INTEGRITY_SIGNATURE
	35	default n
	36	select ASYMMETRIC_KEY_TYPE
	37	select ASYMMETRIC_PUBLIC_KEY_SUBTYPE
	38	select PUBLIC_KEY_ALGO_RSA
eb5798f2	39	select CRYPTO_RSA
1ae8f41c DK	40	select X509_CERTIFICATE_PARSER
	41	help
	42	This option enables digital signature verification using
	43	asymmetric keys.
	44
f4dc3778 DK	45	config INTEGRITY_TRUSTED_KEYRING
	46	bool "Require all keys on the integrity keyrings be signed"
	47	depends on SYSTEM_TRUSTED_KEYRING
	48	depends on INTEGRITY_ASYMMETRIC_KEYS
f4dc3778 DK	49	default y
	50	help
	51	This option requires that all keys added to the .ima and
	52	.evm keyrings be signed by a key on the system trusted
	53	keyring.
	54
d726d8d7 MZ	55	config INTEGRITY_AUDIT
d726d8d7 MZ	56	bool "Enables integrity auditing support "
7ef84e65	57	depends on AUDIT
d726d8d7 MZ	58	default y
	59	help
	60	In addition to enabling integrity auditing support, this
	61	option adds a kernel parameter 'integrity_audit', which
	62	controls the level of integrity auditing messages.
	63	0 - basic integrity auditing messages (default)
	64	1 - additional integrity auditing messages
	65
	66	Additional informational integrity auditing messages would
	67	be enabled by specifying 'integrity_audit=1' on the kernel
	68	command line.
	69
f381c272	70	source security/integrity/ima/Kconfig
66dbc325	71	source security/integrity/evm/Kconfig
7ef84e65 DK	72
7ef84e65 DK	73	endif # if INTEGRITY