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[PATCH 3/4] ima: define Kconfig IMA_APPRAISE_BOOTPARAM option

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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>
---
 security/integrity/ima/Kconfig        | 8 ++++++++
 security/integrity/ima/ima_appraise.c | 2 ++
 2 files changed, 10 insertions(+)

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;
 }
 
-- 
2.7.4

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[PATCH 0/4] ima: builtin policy requiring file signatures Mimi Zohar <zohar@linux.vnet.ibm.com> - 2017-05-02 20:50 +0200
  [PATCH 3/4] ima: define Kconfig IMA_APPRAISE_BOOTPARAM option Mimi Zohar <zohar@linux.vnet.ibm.com> - 2017-05-02 20:50 +0200
  [PATCH 2/4] ima: define a set of appraisal rules requiring file signatures Mimi Zohar <zohar@linux.vnet.ibm.com> - 2017-05-02 20:50 +0200

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