ima: define Kconfig IMA_APPRAISE_BOOTPARAM option

Permit enabling the different "ima_appraise=" modes (eg. log, fix)
from the boot command line.

Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>

2 files changed, 10 insertions, 0 deletions

diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig
index 370eb2f4dd37..8b688a26033d 100644
--- a/security/integrity/ima/Kconfig
+++ b/security/integrity/ima/Kconfig
@@ -155,6 +155,14 @@ config IMA_APPRAISE
           <http://linux-ima.sourceforge.net>
           If unsure, say N.
 
+config IMA_APPRAISE_BOOTPARAM
+        bool "ima_appraise boot parameter"
+        depends on IMA_APPRAISE
+        default y
+        help
+          This option enables the different "ima_appraise=" modes
+          (eg. fix, log) from the boot command line.
+
 config IMA_TRUSTED_KEYRING
         bool "Require all keys on the .ima keyring be signed (deprecated)"
         depends on IMA_APPRAISE && SYSTEM_TRUSTED_KEYRING
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index 5d0785cfe063..ac546df73afc 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -20,12 +20,14 @@
 
 static int __init default_appraise_setup(char *str)
 {
+#ifdef CONFIG_IMA_APPRAISE_BOOTPARAM
         if (strncmp(str, "off", 3) == 0)
                 ima_appraise = 0;
         else if (strncmp(str, "log", 3) == 0)
                 ima_appraise = IMA_APPRAISE_LOG;
         else if (strncmp(str, "fix", 3) == 0)
                 ima_appraise = IMA_APPRAISE_FIX;
+#endif
         return 1;
 }