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

# SPDX-License-Identifier: GPL-2.0-only
#
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"
	default n
	select KEYS
	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 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_PLATFORM_KEYRING
        bool "Provide keyring for platform/firmware trusted keys"
        depends on INTEGRITY_ASYMMETRIC_KEYS
        depends on SYSTEM_BLACKLIST_KEYRING
        help
         Provide a separate, distinct keyring for platform trusted keys, which
         the kernel automatically populates during initialization from values
         provided by the platform for verifying the kexec'ed kerned image
         and, possibly, the initramfs signature.

config LOAD_UEFI_KEYS
       depends on INTEGRITY_PLATFORM_KEYRING
       depends on EFI
       def_bool y

config LOAD_IPL_KEYS
       depends on INTEGRITY_PLATFORM_KEYRING
       depends on S390
       def_bool y

config LOAD_PPC_KEYS
	bool "Enable loading of platform and blacklisted keys for POWER"
	depends on INTEGRITY_PLATFORM_KEYRING
	depends on PPC_SECURE_BOOT
	default y
	help
	  Enable loading of keys to the .platform keyring and blacklisted
	  hashes to the .blacklist keyring for powerpc based platforms.

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
ec8f24b7	1	# SPDX-License-Identifier: GPL-2.0-only
f381c272 MZ	2	#
f381c272 MZ	3	config INTEGRITY
7ef84e65 DK	4	bool "Integrity subsystem"
	5	depends on SECURITY
	6	default y
	7	help
	8	This option enables the integrity subsystem, which is comprised
	9	of a number of different components including the Integrity
	10	Measurement Architecture (IMA), Extended Verification Module
	11	(EVM), IMA-appraisal extension, digital signature verification
	12	extension and audit measurement log support.
	13
	14	Each of these components can be enabled/disabled separately.
	15	Refer to the individual components for additional details.
	16
	17	if INTEGRITY
f381c272	18
f1be242c	19	config INTEGRITY_SIGNATURE
6341e62b	20	bool "Digital signature verification using multiple keyrings"
8607c501	21	default n
cf38fed1	22	select KEYS
5e8898e9	23	select SIGNATURE
8607c501 DK	24	help
	25	This option enables digital signature verification support
	26	using multiple keyrings. It defines separate keyrings for each
	27	of the different use cases - evm, ima, and modules.
	28	Different keyrings improves search performance, but also allow
	29	to "lock" certain keyring to prevent adding new keys.
	30	This is useful for evm and module keyrings, when keys are
	31	usually only added from initramfs.
	32
1ae8f41c	33	config INTEGRITY_ASYMMETRIC_KEYS
6341e62b	34	bool "Enable asymmetric keys support"
1ae8f41c DK	35	depends on INTEGRITY_SIGNATURE
	36	default n
	37	select ASYMMETRIC_KEY_TYPE
	38	select ASYMMETRIC_PUBLIC_KEY_SUBTYPE
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
9dc92c45 NJ	55	config INTEGRITY_PLATFORM_KEYRING
	56	bool "Provide keyring for platform/firmware trusted keys"
	57	depends on INTEGRITY_ASYMMETRIC_KEYS
	58	depends on SYSTEM_BLACKLIST_KEYRING
9dc92c45 NJ	59	help
	60	Provide a separate, distinct keyring for platform trusted keys, which
	61	the kernel automatically populates during initialization from values
	62	provided by the platform for verifying the kexec'ed kerned image
	63	and, possibly, the initramfs signature.
	64
9641b8cc MS	65	config LOAD_UEFI_KEYS
	66	depends on INTEGRITY_PLATFORM_KEYRING
	67	depends on EFI
	68	def_bool y
	69
	70	config LOAD_IPL_KEYS
	71	depends on INTEGRITY_PLATFORM_KEYRING
	72	depends on S390
	73	def_bool y
	74
8220e22d NJ	75	config LOAD_PPC_KEYS
	76	bool "Enable loading of platform and blacklisted keys for POWER"
	77	depends on INTEGRITY_PLATFORM_KEYRING
	78	depends on PPC_SECURE_BOOT
	79	default y
	80	help
	81	Enable loading of keys to the .platform keyring and blacklisted
	82	hashes to the .blacklist keyring for powerpc based platforms.
	83
d726d8d7 MZ	84	config INTEGRITY_AUDIT
d726d8d7 MZ	85	bool "Enables integrity auditing support "
7ef84e65	86	depends on AUDIT
d726d8d7 MZ	87	default y
	88	help
	89	In addition to enabling integrity auditing support, this
	90	option adds a kernel parameter 'integrity_audit', which
	91	controls the level of integrity auditing messages.
	92	0 - basic integrity auditing messages (default)
	93	1 - additional integrity auditing messages
	94
	95	Additional informational integrity auditing messages would
	96	be enabled by specifying 'integrity_audit=1' on the kernel
	97	command line.
	98
8636a1f9 MY	99	source "security/integrity/ima/Kconfig"
8636a1f9 MY	100	source "security/integrity/evm/Kconfig"
7ef84e65 DK	101
7ef84e65 DK	102	endif # if INTEGRITY