From patchwork Sat Oct 2 13:12:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ralph Boehme X-Patchwork-Id: 12532177 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 61529C433F5 for ; Sat, 2 Oct 2021 13:25:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4B85061AF7 for ; Sat, 2 Oct 2021 13:25:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233254AbhJBN1R (ORCPT ); Sat, 2 Oct 2021 09:27:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51274 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230089AbhJBN1Q (ORCPT ); Sat, 2 Oct 2021 09:27:16 -0400 Received: from hr2.samba.org (hr2.samba.org [IPv6:2a01:4f8:192:486::2:0]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0AB77C0613EC for ; Sat, 2 Oct 2021 06:25:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=samba.org; s=42; h=Message-Id:Date:Cc:To:From; bh=YnmZ4rBj6/U25JQdxacF0yp+BjlyrxXq7IN5+KtPqds=; b=mZi2Q8x4DDgyyuZ8eaWQxNEqbp 6ka2v90Gh/Qjhl8vUQpT/OSUs/68wh9dAkp9BoD05l4tZjJlfQxq+WECFuocqFiNgcp/vm1rXTd45 rP9GhsCii8tyPQSFGvg+2mOFKP3fo2Efk9CiXHHPxoQHbv4Kok4NFCNjrNHf7JUqL4H0iWngqFvJw fxZiYo/Wol+PxjsLZjkLk78GGv9to/WAi6WFnHn4aBNOhFnMSup+d9OUh9OBGmMAGHtutBSwPe6Jp +l2Ogg7ws92hJTnS9wgf9TgohZ6ueVOba4SUjAY0C6P1LgL1D/g3hwou1N4Ms5xRNETxRfI15M2gC GrJ3KJkQAHzUNPXsSz2HbEv70F12r6jQ+tUwr+UfwavcN3DifqPmuJQ2S3SIhZXAyCOhNVJBho4nH tWJqPFlyI5qoERt2uixAAHgHFB6dI6Xm/+d9IvQdfzuw9tH906ImQejpzCvAFe7MIdjUOfhswHnmy OsinaUKf/B02S58QtKnT+gSY; Received: from [127.0.0.2] (localhost [127.0.0.1]) by hr2.samba.org with esmtpsa (TLS1.3:ECDHE_SECP256R1__ECDSA_SECP256R1_SHA256__CHACHA20_POLY1305:256) (Exim) id 1mWeoR-001DcY-HS; Sat, 02 Oct 2021 13:12:23 +0000 From: Ralph Boehme To: linux-cifs@vger.kernel.org Cc: Ralph Boehme , Namjae Jeon , Tom Talpey , Ronnie Sahlberg , Steve French , Hyunchul Lee Subject: [PATCH v6 08/14] ksmbd: use ksmbd_smb2_cur_pdu_buflen() in ksmbd_smb2_check_message() Date: Sat, 2 Oct 2021 15:12:06 +0200 Message-Id: <20211002131212.130629-9-slow@samba.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20211002131212.130629-1-slow@samba.org> References: <20211002131212.130629-1-slow@samba.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org No change in behaviour. Cc: Namjae Jeon Cc: Tom Talpey Cc: Ronnie Sahlberg Cc: Steve French Cc: Hyunchul Lee Signed-off-by: Ralph Boehme --- fs/ksmbd/smb2misc.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) diff --git a/fs/ksmbd/smb2misc.c b/fs/ksmbd/smb2misc.c index 76f53db7db8d..7ed266eb6c5e 100644 --- a/fs/ksmbd/smb2misc.c +++ b/fs/ksmbd/smb2misc.c @@ -333,14 +333,7 @@ int ksmbd_smb2_check_message(struct ksmbd_work *work) struct smb2_hdr *hdr = &pdu->hdr; int command; __u32 clc_len; /* calculated length */ - __u32 len = get_rfc1002_len(pdu); - - if (le32_to_cpu(hdr->NextCommand) > 0) { - len = le32_to_cpu(hdr->NextCommand); - } else if (work->next_smb2_rcv_hdr_off) { - len -= work->next_smb2_rcv_hdr_off; - len = round_up(len, 8); - } + __u32 len = ksmbd_smb2_cur_pdu_buflen(work); if (check_smb2_hdr(hdr)) return 1; @@ -395,7 +388,7 @@ int ksmbd_smb2_check_message(struct ksmbd_work *work) * Some windows servers (win2016) will pad also the final * PDU in a compound to 8 bytes. */ - if (ALIGN(clc_len, 8) == len) + if (ALIGN(clc_len, 8) == ALIGN(len, 8)) return 0; /*