From nobody Mon Feb 9 09:18:11 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1503324749489629.7724445591018; Mon, 21 Aug 2017 07:12:29 -0700 (PDT) Received: from localhost ([::1]:48348 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1djnRM-0004GJ-BG for importer@patchew.org; Mon, 21 Aug 2017 10:12:28 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:54832) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1djnPU-0002um-T1 for qemu-devel@nongnu.org; Mon, 21 Aug 2017 10:10:37 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1djnPQ-0001fq-6r for qemu-devel@nongnu.org; Mon, 21 Aug 2017 10:10:32 -0400 Received: from mx1.redhat.com ([209.132.183.28]:46514) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1djnPQ-0001dR-17 for qemu-devel@nongnu.org; Mon, 21 Aug 2017 10:10:28 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 17D26C047B82 for ; Mon, 21 Aug 2017 14:10:27 +0000 (UTC) Received: from lemon.redhat.com (ovpn-12-62.pek2.redhat.com [10.72.12.62]) by smtp.corp.redhat.com (Postfix) with ESMTP id 06CC26CDBA; Mon, 21 Aug 2017 14:10:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 17D26C047B82 Authentication-Results: ext-mx07.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx07.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=famz@redhat.com From: Fam Zheng To: qemu-devel@nongnu.org Date: Mon, 21 Aug 2017 22:10:07 +0800 Message-Id: <20170821141008.19383-4-famz@redhat.com> In-Reply-To: <20170821141008.19383-1-famz@redhat.com> References: <20170821141008.19383-1-famz@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Mon, 21 Aug 2017 14:10:27 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v4 3/4] scsi: Introduce scsi_sense_buf_to_errno X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paolo Bonzini Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" This recognizes the "fixed" and "descriptor" format sense data, extracts the sense key/asc/ascq fields then converts them to an errno. Signed-off-by: Fam Zheng --- include/scsi/scsi.h | 1 + util/scsi.c | 30 ++++++++++++++++++++++++++++++ 2 files changed, 31 insertions(+) diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h index f894ace4bf..fe330385d8 100644 --- a/include/scsi/scsi.h +++ b/include/scsi/scsi.h @@ -15,5 +15,6 @@ #define QEMU_SCSI_H =20 int scsi_sense_to_errno(int key, int asc, int ascq); +int scsi_sense_buf_to_errno(const uint8_t *sense, size_t sense_size); =20 #endif diff --git a/util/scsi.c b/util/scsi.c index 472eb5bea5..472293d59b 100644 --- a/util/scsi.c +++ b/util/scsi.c @@ -58,3 +58,33 @@ int scsi_sense_to_errno(int key, int asc, int ascq) return EIO; } } + +int scsi_sense_buf_to_errno(const uint8_t *sense, size_t sense_size) +{ + int key, asc, ascq; + if (sense_size < 1) { + return EIO; + } + switch (sense[0]) { + case 0x70: /* Fixed format sense data. */ + if (sense_size < 14) { + return EIO; + } + key =3D sense[2] & 0xF; + asc =3D sense[12]; + ascq =3D sense[13]; + break; + case 0x72: /* Descriptor format sense data. */ + if (sense_size < 4) { + return EIO; + } + key =3D sense[1] & 0xF; + asc =3D sense[2]; + ascq =3D sense[3]; + break; + default: + return EIO; + break; + } + return scsi_sense_to_errno(key, asc, ascq); +} --=20 2.13.5