From 5a9196d715607f76d6b7d96a0970d6065335e62b Mon Sep 17 00:00:00 2001 From: Mimi Zohar Date: Tue, 22 Jul 2014 10:39:48 -0400 Subject: ima: add support for measuring and appraising firmware The "security: introduce kernel_fw_from_file hook" patch defined a new security hook to evaluate any loaded firmware that wasn't built into the kernel. This patch defines ima_fw_from_file(), which is called from the new security hook, to measure and/or appraise the loaded firmware's integrity. Signed-off-by: Mimi Zohar Signed-off-by: Kees Cook --- security/integrity/integrity.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'security/integrity/integrity.h') diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h index 09c440d..19b8e31 100644 --- a/security/integrity/integrity.h +++ b/security/integrity/integrity.h @@ -46,10 +46,14 @@ #define IMA_BPRM_APPRAISED 0x00002000 #define IMA_MODULE_APPRAISE 0x00004000 #define IMA_MODULE_APPRAISED 0x00008000 +#define IMA_FIRMWARE_APPRAISE 0x00010000 +#define IMA_FIRMWARE_APPRAISED 0x00020000 #define IMA_APPRAISE_SUBMASK (IMA_FILE_APPRAISE | IMA_MMAP_APPRAISE | \ - IMA_BPRM_APPRAISE | IMA_MODULE_APPRAISE) + IMA_BPRM_APPRAISE | IMA_MODULE_APPRAISE | \ + IMA_FIRMWARE_APPRAISE) #define IMA_APPRAISED_SUBMASK (IMA_FILE_APPRAISED | IMA_MMAP_APPRAISED | \ - IMA_BPRM_APPRAISED | IMA_MODULE_APPRAISED) + IMA_BPRM_APPRAISED | IMA_MODULE_APPRAISED | \ + IMA_FIRMWARE_APPRAISED) enum evm_ima_xattr_type { IMA_XATTR_DIGEST = 0x01, @@ -104,6 +108,7 @@ struct integrity_iint_cache { enum integrity_status ima_mmap_status:4; enum integrity_status ima_bprm_status:4; enum integrity_status ima_module_status:4; + enum integrity_status ima_firmware_status:4; enum integrity_status evm_status:4; struct ima_digest_data *ima_hash; }; -- cgit v1.1