From patchwork Thu Jun 3 20:51:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuck Lever X-Patchwork-Id: 12297957 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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 44D4BC47096 for ; Thu, 3 Jun 2021 20:51:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 28A14613BF for ; Thu, 3 Jun 2021 20:51:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229999AbhFCUw4 (ORCPT ); Thu, 3 Jun 2021 16:52:56 -0400 Received: from mail.kernel.org ([198.145.29.99]:44704 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229576AbhFCUw4 (ORCPT ); Thu, 3 Jun 2021 16:52:56 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id F0060613E7; Thu, 3 Jun 2021 20:51:10 +0000 (UTC) Subject: [PATCH 06/29] lockd: Update the NLMv1 LOCK arguments decoder to use struct xdr_stream From: Chuck Lever To: bfields@fieldses.org Cc: linux-nfs@vger.kernel.org Date: Thu, 03 Jun 2021 16:51:10 -0400 Message-ID: <162275347027.32691.10525129577222265648.stgit@klimt.1015granger.net> In-Reply-To: <162275337584.32691.3943139351165347555.stgit@klimt.1015granger.net> References: <162275337584.32691.3943139351165347555.stgit@klimt.1015granger.net> User-Agent: StGit/1.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Signed-off-by: Chuck Lever --- fs/lockd/xdr.c | 41 +++++++++++++++++++++++------------------ 1 file changed, 23 insertions(+), 18 deletions(-) diff --git a/fs/lockd/xdr.c b/fs/lockd/xdr.c index 56982edd4766..8a9f02e45df2 100644 --- a/fs/lockd/xdr.c +++ b/fs/lockd/xdr.c @@ -267,35 +267,40 @@ nlmsvc_decode_testargs(struct svc_rqst *rqstp, __be32 *p) return 1; } -int -nlmsvc_encode_testres(struct svc_rqst *rqstp, __be32 *p) -{ - struct nlm_res *resp = rqstp->rq_resp; - - if (!(p = nlm_encode_testres(p, resp))) - return 0; - return xdr_ressize_check(rqstp, p); -} - int nlmsvc_decode_lockargs(struct svc_rqst *rqstp, __be32 *p) { + struct xdr_stream *xdr = &rqstp->rq_arg_stream; struct nlm_args *argp = rqstp->rq_argp; - u32 exclusive; + u32 exclusive; - if (!(p = nlm_decode_cookie(p, &argp->cookie))) + if (!svcxdr_decode_cookie(xdr, &argp->cookie)) return 0; - argp->block = ntohl(*p++); - exclusive = ntohl(*p++); - if (!(p = nlm_decode_lock(p, &argp->lock))) + if (xdr_stream_decode_bool(xdr, &argp->block) < 0) + return 0; + if (xdr_stream_decode_bool(xdr, &exclusive) < 0) + return 0; + if (!svcxdr_decode_lock(xdr, &argp->lock)) return 0; if (exclusive) argp->lock.fl.fl_type = F_WRLCK; - argp->reclaim = ntohl(*p++); - argp->state = ntohl(*p++); + if (xdr_stream_decode_bool(xdr, &argp->reclaim) < 0) + return 0; + if (xdr_stream_decode_u32(xdr, &argp->state) < 0) + return 0; argp->monitor = 1; /* monitor client by default */ - return xdr_argsize_check(rqstp, p); + return 1; +} + +int +nlmsvc_encode_testres(struct svc_rqst *rqstp, __be32 *p) +{ + struct nlm_res *resp = rqstp->rq_resp; + + if (!(p = nlm_encode_testres(p, resp))) + return 0; + return xdr_ressize_check(rqstp, p); } int