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lib
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4.4.0-1128-aws
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security
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integrity
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evm
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Kconfig
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config EVM bool "EVM support" select KEYS select ENCRYPTED_KEYS select CRYPTO_HMAC select CRYPTO_SHA1 default n help EVM protects a file's security extended attributes against integrity attacks. If you are unsure how to answer this question, answer N. config EVM_ATTR_FSUUID bool "FSUUID (version 2)" default y depends on EVM help Include filesystem UUID for HMAC calculation. Default value is 'selected', which is former version 2. if 'not selected', it is former version 1 WARNING: changing the HMAC calculation method or adding additional info to the calculation, requires existing EVM labeled file systems to be relabeled. config EVM_EXTRA_SMACK_XATTRS bool "Additional SMACK xattrs" depends on EVM && SECURITY_SMACK default n help Include additional SMACK xattrs for HMAC calculation. In addition to the original security xattrs (eg. security.selinux, security.SMACK64, security.capability, and security.ima) included in the HMAC calculation, enabling this option includes newly defined Smack xattrs: security.SMACK64EXEC, security.SMACK64TRANSMUTE and security.SMACK64MMAP. WARNING: changing the HMAC calculation method or adding additional info to the calculation, requires existing EVM labeled file systems to be relabeled.