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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 760F9C282C3 for ; Thu, 24 Jan 2019 19:56:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 47102217D7 for ; Thu, 24 Jan 2019 19:56:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548359792; bh=GiX/CDUocU0jWULkqWBYKTSP+wwSmdKGKNUnuXz1wi8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=XT4BPd/S7AneclLJlcN+kpY+08MN3mK9YZdzTQvXn+yRr9/d6trgIHK1/sk1ucYHg 3eF0nS8Y11kZBLJ8Gepeutpxfch8uiTPYc15Nkmm/fr+hQ306k5xJ1k7NjMrpF2LSV kQ7Bx8Ue/Me5ksbwZSU3VghtQuApM9qCxnOSJ33Y= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732448AbfAXTgC (ORCPT ); Thu, 24 Jan 2019 14:36:02 -0500 Received: from mail.kernel.org ([198.145.29.99]:36036 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732439AbfAXTgB (ORCPT ); Thu, 24 Jan 2019 14:36:01 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BAC5C218FC; Thu, 24 Jan 2019 19:35:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1548358560; bh=GiX/CDUocU0jWULkqWBYKTSP+wwSmdKGKNUnuXz1wi8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tzsaX5Sm2etqdEyeCMtcPqwnkSt5G13u+JTgBN2FM7nshIlscf7zjnDDal4jgGJcS Sgk3ahTfsybfvFNE/hY3sQivnpysekhQNHj9GWMPY5Gw1RtAhspGpBQychL4CfpJmY DfJuF4VP6r5l94ISlr++t/a6+61BDSwLMuCgjwzM= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, David Disseldorp , Christoph Hellwig , "Bryant G. Ly" , Lee Duncan , Hannes Reinecke , Roman Bolshakov , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 4.19 050/106] scsi: target: use consistent left-aligned ASCII INQUIRY data Date: Thu, 24 Jan 2019 20:20:07 +0100 Message-Id: <20190124190209.608113141@linuxfoundation.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190124190206.342411005@linuxfoundation.org> References: <20190124190206.342411005@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ [ Upstream commit 0de263577de5d5e052be5f4f93334e63cc8a7f0b ] spc5r17.pdf specifies: 4.3.1 ASCII data field requirements ASCII data fields shall contain only ASCII printable characters (i.e., code values 20h to 7Eh) and may be terminated with one or more ASCII null (00h) characters. ASCII data fields described as being left-aligned shall have any unused bytes at the end of the field (i.e., highest offset) and the unused bytes shall be filled with ASCII space characters (20h). LIO currently space-pads the T10 VENDOR IDENTIFICATION and PRODUCT IDENTIFICATION fields in the standard INQUIRY data. However, the PRODUCT REVISION LEVEL field in the standard INQUIRY data as well as the T10 VENDOR IDENTIFICATION field in the INQUIRY Device Identification VPD Page are zero-terminated/zero-padded. Fix this inconsistency by using space-padding for all of the above fields. Signed-off-by: David Disseldorp Reviewed-by: Christoph Hellwig Reviewed-by: Bryant G. Ly Reviewed-by: Lee Duncan Reviewed-by: Hannes Reinecke Reviewed-by: Roman Bolshakov Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/target/target_core_spc.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index cb0461a10808..93424db5f002 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -108,12 +108,17 @@ spc_emulate_inquiry_std(struct se_cmd *cmd, unsigned char *buf) buf[7] = 0x2; /* CmdQue=1 */ - memcpy(&buf[8], "LIO-ORG ", 8); - memset(&buf[16], 0x20, 16); + /* + * ASCII data fields described as being left-aligned shall have any + * unused bytes at the end of the field (i.e., highest offset) and the + * unused bytes shall be filled with ASCII space characters (20h). + */ + memset(&buf[8], 0x20, 8 + 16 + 4); + memcpy(&buf[8], "LIO-ORG", sizeof("LIO-ORG") - 1); memcpy(&buf[16], dev->t10_wwn.model, - min_t(size_t, strlen(dev->t10_wwn.model), 16)); + strnlen(dev->t10_wwn.model, 16)); memcpy(&buf[32], dev->t10_wwn.revision, - min_t(size_t, strlen(dev->t10_wwn.revision), 4)); + strnlen(dev->t10_wwn.revision, 4)); buf[4] = 31; /* Set additional length to 31 */ return 0; @@ -251,7 +256,9 @@ check_t10_vend_desc: buf[off] = 0x2; /* ASCII */ buf[off+1] = 0x1; /* T10 Vendor ID */ buf[off+2] = 0x0; - memcpy(&buf[off+4], "LIO-ORG", 8); + /* left align Vendor ID and pad with spaces */ + memset(&buf[off+4], 0x20, 8); + memcpy(&buf[off+4], "LIO-ORG", sizeof("LIO-ORG") - 1); /* Extra Byte for NULL Terminator */ id_len++; /* Identifier Length */ -- 2.19.1