On 10/24/19 12:35 PM, Lakshmi Ramasubramanian wrote:
On 10/23/2019 8:47 PM, Nayna Jain wrote:
+/*
+ * The "secure_rules" are enabled only on "secureboot" enabled systems.
+ * These rules verify the file signatures against known good values.
+ * The "appraise_type=imasig|modsig" option allows the known good
signature
+ * to be stored as an xattr or as an appended signature.
+ *
+ * To avoid duplicate signature verification as much as possible,
the IMA
+ * policy rule for module appraisal is added only if
CONFIG_MODULE_SIG_FORCE
+ * is not enabled.
+ */
+static const char *const secure_rules[] = {
+ "appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig|modsig",
+#ifndef CONFIG_MODULE_SIG_FORCE
+ "appraise func=MODULE_CHECK appraise_type=imasig|modsig",
+#endif
+ NULL
+};
Is there any way to not use conditional compilation in the above array
definition? Maybe define different functions to get "secure_rules" for
when CONFIG_MODULE_SIG_FORCE is defined and when it is not defined.
How will you decide which function to be called ?
Thanks & Regards,
- Nayna
