From patchwork Fri Aug 26 10:39:26 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhang Xiaoxu X-Patchwork-Id: 12955762 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6A4F1ECAAA3 for ; Fri, 26 Aug 2022 09:40:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234010AbiHZJk1 (ORCPT ); Fri, 26 Aug 2022 05:40:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35460 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344091AbiHZJkY (ORCPT ); Fri, 26 Aug 2022 05:40:24 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0D94817E38 for ; Fri, 26 Aug 2022 02:40:22 -0700 (PDT) Received: from dggpeml500023.china.huawei.com (unknown [172.30.72.57]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4MDZV828JZz19Tyb; Fri, 26 Aug 2022 17:36:48 +0800 (CST) Received: from fedora.huawei.com (10.175.101.6) by dggpeml500023.china.huawei.com (7.185.36.114) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Fri, 26 Aug 2022 17:40:20 +0800 From: Zhang Xiaoxu To: , , , , , , Subject: [PATCH -next 1/2] cifs: Use helper macro SMB2_CREATE_TAG_POSIX Date: Fri, 26 Aug 2022 18:39:26 +0800 Message-ID: <20220826103927.2802716-2-zhangxiaoxu5@huawei.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220826103927.2802716-1-zhangxiaoxu5@huawei.com> References: <20220826103927.2802716-1-zhangxiaoxu5@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpeml500023.china.huawei.com (7.185.36.114) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org Posix tag already defined in fs/smbfs_common/smb2pdu.h, use the helper macro SMB2_CREATE_TAG_POSIX here. Signed-off-by: Zhang Xiaoxu --- fs/cifs/smb2pdu.c | 43 +++---------------------------------------- 1 file changed, 3 insertions(+), 40 deletions(-) diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 128e44e57528..0b0a30b8a114 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -520,23 +520,7 @@ build_posix_ctxt(struct smb2_posix_neg_context *pneg_ctxt) { pneg_ctxt->ContextType = SMB2_POSIX_EXTENSIONS_AVAILABLE; pneg_ctxt->DataLength = cpu_to_le16(POSIX_CTXT_DATA_LEN); - /* SMB2_CREATE_TAG_POSIX is "0x93AD25509CB411E7B42383DE968BCD7C" */ - pneg_ctxt->Name[0] = 0x93; - pneg_ctxt->Name[1] = 0xAD; - pneg_ctxt->Name[2] = 0x25; - pneg_ctxt->Name[3] = 0x50; - pneg_ctxt->Name[4] = 0x9C; - pneg_ctxt->Name[5] = 0xB4; - pneg_ctxt->Name[6] = 0x11; - pneg_ctxt->Name[7] = 0xE7; - pneg_ctxt->Name[8] = 0xB4; - pneg_ctxt->Name[9] = 0x23; - pneg_ctxt->Name[10] = 0x83; - pneg_ctxt->Name[11] = 0xDE; - pneg_ctxt->Name[12] = 0x96; - pneg_ctxt->Name[13] = 0x8B; - pneg_ctxt->Name[14] = 0xCD; - pneg_ctxt->Name[15] = 0x7C; + memcpy(pneg_ctxt->Name, SMB2_CREATE_TAG_POSIX, 16); } static void @@ -804,23 +788,7 @@ create_posix_buf(umode_t mode) cpu_to_le16(offsetof(struct create_posix, Name)); buf->ccontext.NameLength = cpu_to_le16(16); - /* SMB2_CREATE_TAG_POSIX is "0x93AD25509CB411E7B42383DE968BCD7C" */ - buf->Name[0] = 0x93; - buf->Name[1] = 0xAD; - buf->Name[2] = 0x25; - buf->Name[3] = 0x50; - buf->Name[4] = 0x9C; - buf->Name[5] = 0xB4; - buf->Name[6] = 0x11; - buf->Name[7] = 0xE7; - buf->Name[8] = 0xB4; - buf->Name[9] = 0x23; - buf->Name[10] = 0x83; - buf->Name[11] = 0xDE; - buf->Name[12] = 0x96; - buf->Name[13] = 0x8B; - buf->Name[14] = 0xCD; - buf->Name[15] = 0x7C; + memcpy(buf->Name, SMB2_CREATE_TAG_POSIX, 16); buf->Mode = cpu_to_le32(mode); cifs_dbg(FYI, "mode on posix create 0%o\n", mode); return buf; @@ -2114,11 +2082,6 @@ smb2_parse_contexts(struct TCP_Server_Info *server, unsigned int next; unsigned int remaining; char *name; - static const char smb3_create_tag_posix[] = { - 0x93, 0xAD, 0x25, 0x50, 0x9C, - 0xB4, 0x11, 0xE7, 0xB4, 0x23, 0x83, - 0xDE, 0x96, 0x8B, 0xCD, 0x7C - }; *oplock = 0; data_offset = (char *)rsp + le32_to_cpu(rsp->CreateContextsOffset); @@ -2140,7 +2103,7 @@ smb2_parse_contexts(struct TCP_Server_Info *server, parse_query_id_ctxt(cc, buf); else if ((le16_to_cpu(cc->NameLength) == 16)) { if (posix && - memcmp(name, smb3_create_tag_posix, 16) == 0) + memcmp(name, SMB2_CREATE_TAG_POSIX, 16) == 0) parse_posix_ctxt(cc, buf, posix); } /* else {