From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,UNPARSEABLE_RELAY, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 060E5C43387 for ; Wed, 16 Jan 2019 02:59:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C858120675 for ; Wed, 16 Jan 2019 02:59:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726863AbfAPC72 (ORCPT ); Tue, 15 Jan 2019 21:59:28 -0500 Received: from out30-130.freemail.mail.aliyun.com ([115.124.30.130]:42473 "EHLO out30-130.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729852AbfAPC72 (ORCPT ); Tue, 15 Jan 2019 21:59:28 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R141e4;CH=green;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04426;MF=zhang.jia@linux.alibaba.com;NM=1;PH=DS;RN=5;SR=0;TI=SMTPD_---0TIKYZgF_1547607465; Received: from localhost(mailfrom:zhang.jia@linux.alibaba.com fp:SMTPD_---0TIKYZgF_1547607465) by smtp.aliyun-inc.com(127.0.0.1); Wed, 16 Jan 2019 10:57:45 +0800 From: Jia Zhang To: pvorel@suse.cz, zohar@linux.ibm.com Cc: linux-integrity@vger.kernel.org, ltp@lists.linux.it, zhang.jia@linux.alibaba.com Subject: [PATCH v3 2/6] ima/ima_boot_aggregate: Don't hard code the length of sha1 hash Date: Wed, 16 Jan 2019 10:57:37 +0800 Message-Id: <1547607461-11233-3-git-send-email-zhang.jia@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1547607461-11233-1-git-send-email-zhang.jia@linux.alibaba.com> References: <1547607461-11233-1-git-send-email-zhang.jia@linux.alibaba.com> Sender: linux-integrity-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org Instead, use SHA_DIGEST_LENGTH. Signed-off-by: Jia Zhang Reviewed-by: Mimi Zohar --- testcases/kernel/security/integrity/ima/src/ima_boot_aggregate.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/testcases/kernel/security/integrity/ima/src/ima_boot_aggregate.c b/testcases/kernel/security/integrity/ima/src/ima_boot_aggregate.c index d85d222..67be6a7 100644 --- a/testcases/kernel/security/integrity/ima/src/ima_boot_aggregate.c +++ b/testcases/kernel/security/integrity/ima/src/ima_boot_aggregate.c @@ -42,7 +42,7 @@ static void display_sha1_digest(unsigned char *pcr) { int i; - for (i = 0; i < 20; i++) + for (i = 0; i < SHA_DIGEST_LENGTH; i++) printf("%02x", *(pcr + i) & 0xff); printf("\n"); } @@ -94,8 +94,9 @@ int main(int argc, char *argv[]) display_sha1_digest(event.header.digest); } SHA1_Init(&c); - SHA1_Update(&c, pcr[event.header.pcr].digest, 20); - SHA1_Update(&c, event.header.digest, 20); + SHA1_Update(&c, pcr[event.header.pcr].digest, + SHA_DIGEST_LENGTH); + SHA1_Update(&c, event.header.digest, SHA_DIGEST_LENGTH); SHA1_Final(pcr[event.header.pcr].digest, &c); #if MAX_EVENT_DATA_SIZE < USHRT_MAX if (event.header.len > MAX_EVENT_DATA_SIZE) { @@ -116,7 +117,7 @@ int main(int argc, char *argv[]) printf("PCR-%2.2x: ", i); display_sha1_digest(pcr[i].digest); } - SHA1_Update(&c, pcr[i].digest, 20); + SHA1_Update(&c, pcr[i].digest, SHA_DIGEST_LENGTH); } SHA1_Final(boot_aggregate, &c); -- 1.8.3.1