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-rw-r--r--security/integrity/ima/Kconfig36
1 files changed, 23 insertions, 13 deletions
diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig
index e54a8a8dae94..5487827fa86c 100644
--- a/security/integrity/ima/Kconfig
+++ b/security/integrity/ima/Kconfig
@@ -155,23 +155,33 @@ config IMA_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"
+config IMA_KEYRINGS_PERMIT_SIGNED_BY_BUILTIN_OR_SECONDARY
+ bool "Permit keys validly signed by a built-in or secondary CA cert (EXPERIMENTAL)"
+ depends on SYSTEM_TRUSTED_KEYRING
+ depends on SECONDARY_TRUSTED_KEYRING
+ depends on INTEGRITY_ASYMMETRIC_KEYS
+ select INTEGRITY_TRUSTED_KEYRING
+ default n
+ help
+ Keys may be added to the IMA or IMA blacklist keyrings, if the
+ key is validly signed by a CA cert in the system built-in or
+ secondary trusted keyrings.
+
+ Intermediate keys between those the kernel has compiled in and the
+ IMA keys to be added may be added to the system secondary keyring,
+ provided they are validly signed by a key already resident in the
+ built-in or secondary trusted keyrings.
+
+config IMA_BLACKLIST_KEYRING
+ bool "Create IMA machine owner blacklist keyrings (EXPERIMENTAL)"
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.
+ This option creates an IMA blacklist keyring, which contains all
+ revoked IMA keys. It is consulted before any other keyring. If
+ the search is successful the requested operation is rejected and
+ an error is returned to the caller.
config IMA_LOAD_X509
bool "Load X509 certificate onto the '.ima' trusted keyring"