1 # SPDX-License-Identifier: GPL-2.0-only
8 select CRYPTO_HASH_INFO
11 EVM protects a file's security extended attributes against
14 If you are unsure how to answer this question, answer N.
16 config EVM_ATTR_FSUUID
17 bool "FSUUID (version 2)"
21 Include filesystem UUID for HMAC calculation.
23 Default value is 'selected', which is former version 2.
24 if 'not selected', it is former version 1
26 WARNING: changing the HMAC calculation method or adding
27 additional info to the calculation, requires existing EVM
28 labeled file systems to be relabeled.
30 config EVM_EXTRA_SMACK_XATTRS
31 bool "Additional SMACK xattrs"
32 depends on EVM && SECURITY_SMACK
35 Include additional SMACK xattrs for HMAC calculation.
37 In addition to the original security xattrs (eg. security.selinux,
38 security.SMACK64, security.capability, and security.ima) included
39 in the HMAC calculation, enabling this option includes newly defined
40 Smack xattrs: security.SMACK64EXEC, security.SMACK64TRANSMUTE and
43 WARNING: changing the HMAC calculation method or adding
44 additional info to the calculation, requires existing EVM
45 labeled file systems to be relabeled.
48 bool "Add additional EVM extended attributes at runtime"
52 Allow userland to provide additional xattrs for HMAC calculation.
54 When this option is enabled, root can add additional xattrs to the
55 list used by EVM by writing them into
56 /sys/kernel/security/integrity/evm/evm_xattrs.
59 bool "Load an X509 certificate onto the '.evm' trusted keyring"
60 depends on EVM && INTEGRITY_TRUSTED_KEYRING
63 Load an X509 certificate onto the '.evm' trusted keyring.
65 This option enables X509 certificate loading from the kernel
66 onto the '.evm' trusted keyring. A public key can be used to
67 verify EVM integrity starting from the 'init' process.
70 string "EVM X509 certificate path"
71 depends on EVM_LOAD_X509
72 default "/etc/keys/x509_evm.der"
74 This option defines X509 certificate path.