From patchwork Thu Jul 8 17:30:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marek_Beh=C3=BAn?= X-Patchwork-Id: 1502605 X-Patchwork-Delegate: sr@denx.de Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; secure) header.d=nic.cz header.i=@nic.cz header.a=rsa-sha256 header.s=default header.b=HwojiVoV; dkim-atps=neutral Received: from phobos.denx.de (phobos.denx.de [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4GLNmj5D5vz9sWc for ; Fri, 9 Jul 2021 03:38:13 +1000 (AEST) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 4BDA283291; Thu, 8 Jul 2021 19:36:47 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=nic.cz Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (1024-bit key; secure) header.d=nic.cz header.i=@nic.cz header.b="HwojiVoV"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 111A18321D; Thu, 8 Jul 2021 19:36:36 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,SPF_HELO_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from mail.nic.cz (mail.nic.cz [217.31.204.67]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 0B806831E3 for ; Thu, 8 Jul 2021 19:30:39 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=nic.cz Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=marek.behun@nic.cz Received: from dellmb.labs.office.nic.cz (unknown [IPv6:2001:1488:fffe:6:8747:7254:5571:3010]) by mail.nic.cz (Postfix) with ESMTPSA id 927D21427E1; Thu, 8 Jul 2021 19:30:38 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=nic.cz; s=default; t=1625765438; bh=Go2V8oGidS1bSx9j1T5CvNjhXKeUNMxiYOYQhJgSmSs=; h=From:To:Date; b=HwojiVoViNOCO9lB7WcHwdlB7hC7hfvUa1NCYRmcnkHn4YLl3k4ZJamO5xTf/7nfM Nwfk47I/Rt3cDEhEwk4LXd9EbBlaNCRsYN2930Waf8m+fChGnRjmmRhH7+ewEcyc++ O0hGeKMisfXodMrhvv4pUOiNBcxGrysWnQUa2uz8= From: =?utf-8?q?Marek_Beh=C3=BAn?= To: u-boot@lists.denx.de, Chris Packham , Stefan Roese , Baruch Siach , Dirk Eibach , Chris Packham Cc: Dennis Gilmore , Mario Six , Jon Nettleton , =?utf-8?q?Pali_Roh=C3=A1r?= , =?utf-8?q?Marek_Beh=C3=BAn?= Subject: [PATCH u-boot-mvebu 07/31] tools: kwbimage: Fix check for v0 extended header checksum Date: Thu, 8 Jul 2021 19:30:08 +0200 Message-Id: <20210708173032.27999-8-marek.behun@nic.cz> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210708173032.27999-1-marek.behun@nic.cz> References: <20210708173032.27999-1-marek.behun@nic.cz> MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.2 at phobos.denx.de X-Virus-Status: Clean From: Pali Rohár Extended header checksum for v0 image is present only in the case when extended header is present. Skip checksum validation if extended header is not present. Signed-off-by: Pali Rohár Reviewed-by: Marek Behún Reviewed-by: Stefan Roese --- tools/kwbimage.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/tools/kwbimage.c b/tools/kwbimage.c index c08fb678d4..5192edb330 100644 --- a/tools/kwbimage.c +++ b/tools/kwbimage.c @@ -1653,15 +1653,19 @@ static int kwbimage_verify_header(unsigned char *ptr, int image_size, /* Only version 0 extended header has checksum */ if (image_version((void *)ptr) == 0) { - struct ext_hdr_v0 *ext_hdr; + struct main_hdr_v0 *mhdr = (struct main_hdr_v0 *)ptr; - ext_hdr = (struct ext_hdr_v0 *) + if (mhdr->ext & 0x1) { + struct ext_hdr_v0 *ext_hdr; + + ext_hdr = (struct ext_hdr_v0 *) (ptr + sizeof(struct main_hdr_v0)); - checksum = image_checksum8(ext_hdr, - sizeof(struct ext_hdr_v0) - - sizeof(uint8_t)); - if (checksum != ext_hdr->checksum) - return -FDT_ERR_BADSTRUCTURE; + checksum = image_checksum8(ext_hdr, + sizeof(struct ext_hdr_v0) + - sizeof(uint8_t)); + if (checksum != ext_hdr->checksum) + return -FDT_ERR_BADSTRUCTURE; + } } return 0;