# Task Integrity Verifier

config FIVE
	bool "File Based Task Integrity Verifier (FIVE)(based on IMA)"
	depends on INTEGRITY && DM_VERITY && BLK_DEV_LOOP
	select CRYPTO
	select CRYPTO_SHA1
	select CRYPTO_SHA1_ARM64_CE if ARM64_CRYPTO && KERNEL_MODE_NEON
	select CRYPTO_HASH_INFO
	select INTEGRITY_SIGNATURE
	select INTEGRITY_ASYMMETRIC_KEYS
	default n
	help
	  File Based Task Integrity Verifier (FIVE) maintains
	  signatures 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.

config FIVE_DEBUG
	bool "FIVE Debug mode"
	depends on FIVE
	default n
	help
	 Enable the debug mode in the FIVE

config FIVE_CERT_ENG
    string "FIVE certificate to verify signatures for eng binary"
    depends on FIVE_DEBUG
    default "x509_five_eng.der"
    help
      Path to CERT which will be built-in to eng binary

config FIVE_CERT_USER
    string "FIVE certificate to verify signatures for user binary"
    depends on FIVE
    default "x509_five_user.der"
    help
      Path to CERT which will be built-in to user binary

choice
	prompt "Default integrity hash algorithm"
	depends on FIVE
	default FIVE_DEFAULT_HASH_SHA1
	help
	   Select the default hash algorithm used for the measurement
	   list, integrity appraisal and audit log.

	config FIVE_DEFAULT_HASH_SHA1
		bool "SHA1 (default)"
		depends on CRYPTO_SHA1

	config FIVE_DEFAULT_HASH_SHA256
		bool "SHA256"
		depends on CRYPTO_SHA256

	config FIVE_DEFAULT_HASH_SHA512
		bool "SHA512"
		depends on CRYPTO_SHA512

	config FIVE_DEFAULT_HASH_WP512
		bool "WP512"
		depends on CRYPTO_WP512
endchoice

config FIVE_DEFAULT_HASH
	string
	depends on FIVE
	default "sha1" if FIVE_DEFAULT_HASH_SHA1
	default "sha256" if FIVE_DEFAULT_HASH_SHA256
	default "sha512" if FIVE_DEFAULT_HASH_SHA512
	default "wp512" if FIVE_DEFAULT_HASH_WP512

config FIVE_TRUSTED_KEYRING
	bool "Require all keys on the .five keyring be signed"
	depends on FIVE && SYSTEM_TRUSTED_KEYRING
	default y
	help
	   This option requires that all keys added to the .five
	   keyring be signed by a key on the system trusted keyring.

config FIVE_PA_FEATURE
	bool "Process authenticator"
	depends on FIVE && !PROCA
	default y
	help
	   Enable Process Authenticator related code

config FIVE_AUDIT_VERBOSE
	bool "FIVE verbose audit logs"
	depends on FIVE_DEBUG
	default n
	help
	   Enable verbose audit logs.