From c7c8bb237fdbff932b5e431aebee5ce862ea07d1 Mon Sep 17 00:00:00 2001 From: Dmitry Kasatkin Date: Thu, 25 Apr 2013 10:43:56 +0300 Subject: ima: provide support for arbitrary hash algorithms In preparation of supporting more hash algorithms with larger hash sizes needed for signature verification, this patch replaces the 20 byte sized digest, with a more flexible structure. The new structure includes the hash algorithm, digest size, and digest. Changelog: - recalculate filedata hash for the measurement list, if the signature hash digest size is greater than 20 bytes. - use generic HASH_ALGO_ - make ima_calc_file_hash static - scripts lindent and checkpatch fixes Signed-off-by: Dmitry Kasatkin Signed-off-by: Mimi Zohar --- security/integrity/ima/ima_main.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'security/integrity/ima/ima_main.c') diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c index 0f359df6344c..7708c2120d9c 100644 --- a/security/integrity/ima/ima_main.c +++ b/security/integrity/ima/ima_main.c @@ -24,6 +24,7 @@ #include #include #include +#include #include "ima.h" @@ -35,11 +36,12 @@ int ima_appraise = IMA_APPRAISE_ENFORCE; int ima_appraise; #endif -char *ima_hash = "sha1"; +int ima_hash_algo = HASH_ALGO_SHA1; + static int __init hash_setup(char *str) { if (strncmp(str, "md5", 3) == 0) - ima_hash = "md5"; + ima_hash_algo = HASH_ALGO_MD5; return 1; } __setup("ima_hash=", hash_setup); -- cgit v1.2.1