summaryrefslogtreecommitdiffstats
path: root/kernel/security/integrity/evm/Kconfig
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/security/integrity/evm/Kconfig')
-rw-r--r--kernel/security/integrity/evm/Kconfig44
1 files changed, 44 insertions, 0 deletions
diff --git a/kernel/security/integrity/evm/Kconfig b/kernel/security/integrity/evm/Kconfig
new file mode 100644
index 000000000..bf19723cf
--- /dev/null
+++ b/kernel/security/integrity/evm/Kconfig
@@ -0,0 +1,44 @@
+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.
+