diff options
Diffstat (limited to 'security/integrity/ima/Kconfig')
| -rw-r--r-- | security/integrity/ima/Kconfig | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig index df303346029b..e54a8a8dae94 100644 --- a/security/integrity/ima/Kconfig +++ b/security/integrity/ima/Kconfig @@ -107,6 +107,27 @@ config IMA_DEFAULT_HASH default "sha512" if IMA_DEFAULT_HASH_SHA512 default "wp512" if IMA_DEFAULT_HASH_WP512 +config IMA_WRITE_POLICY + bool "Enable multiple writes to the IMA policy" + depends on IMA + default n + help + IMA policy can now be updated multiple times. The new rules get + appended to the original policy. Have in mind that the rules are + scanned in FIFO order so be careful when you design and add new ones. + + If unsure, say N. + +config IMA_READ_POLICY + bool "Enable reading back the current IMA policy" + depends on IMA + default y if IMA_WRITE_POLICY + default n if !IMA_WRITE_POLICY + help + It is often useful to be able to read back the IMA policy. It is + even more important after introducing CONFIG_IMA_WRITE_POLICY. + This option allows the root user to see the current policy rules. + config IMA_APPRAISE bool "Appraise integrity measurements" depends on IMA @@ -123,14 +144,35 @@ config IMA_APPRAISE If unsure, say N. config IMA_TRUSTED_KEYRING - bool "Require all keys on the .ima keyring be signed" + bool "Require all keys on the .ima keyring be signed (deprecated)" depends on IMA_APPRAISE && SYSTEM_TRUSTED_KEYRING depends on INTEGRITY_ASYMMETRIC_KEYS + select INTEGRITY_TRUSTED_KEYRING default y help This option requires that all keys added to the .ima keyring be signed by a key on the system trusted keyring. + This option is deprecated in favor of INTEGRITY_TRUSTED_KEYRING + +config IMA_MOK_KEYRING + bool "Create IMA machine owner keys (MOK) and blacklist keyrings" + depends on SYSTEM_TRUSTED_KEYRING + depends on IMA_TRUSTED_KEYRING + default n + help + This option creates IMA MOK and blacklist keyrings. IMA MOK is an + intermediate keyring that sits between .system and .ima keyrings, + effectively forming a simple CA hierarchy. To successfully import a + key into .ima_mok it must be signed by a key which CA is in .system + keyring. On turn any key that needs to go in .ima keyring must be + signed by CA in either .system or .ima_mok keyrings. IMA MOK is empty + at kernel boot. + + IMA blacklist keyring contains all revoked IMA keys. It is consulted + before any other keyring. If the search is successful the requested + operation is rejected and error is returned to the caller. + config IMA_LOAD_X509 bool "Load X509 certificate onto the '.ima' trusted keyring" depends on IMA_TRUSTED_KEYRING |