From patchwork Thu Jun 3 20:52:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuck Lever X-Patchwork-Id: 12297985 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 E8262C47096 for ; Thu, 3 Jun 2021 20:52:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CA4A661263 for ; Thu, 3 Jun 2021 20:52:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230039AbhFCUyO (ORCPT ); Thu, 3 Jun 2021 16:54:14 -0400 Received: from mail.kernel.org ([198.145.29.99]:44988 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230036AbhFCUyO (ORCPT ); Thu, 3 Jun 2021 16:54:14 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6E566613E4; Thu, 3 Jun 2021 20:52:29 +0000 (UTC) Subject: [PATCH 19/29] lockd: Update the NLMv4 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 16:52:28 -0400 Message-ID: <162275354874.32691.14207239978946311999.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/xdr4.c | 41 +++++++++++++++++++++++------------------ 1 file changed, 23 insertions(+), 18 deletions(-) diff --git a/fs/lockd/xdr4.c b/fs/lockd/xdr4.c index cf64794fdc1f..1d3e780c25fd 100644 --- a/fs/lockd/xdr4.c +++ b/fs/lockd/xdr4.c @@ -264,35 +264,40 @@ nlm4svc_decode_testargs(struct svc_rqst *rqstp, __be32 *p) return 1; } -int -nlm4svc_encode_testres(struct svc_rqst *rqstp, __be32 *p) -{ - struct nlm_res *resp = rqstp->rq_resp; - - if (!(p = nlm4_encode_testres(p, resp))) - return 0; - return xdr_ressize_check(rqstp, p); -} - int nlm4svc_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 = nlm4_decode_cookie(p, &argp->cookie))) + if (!svcxdr_decode_cookie(xdr, &argp->cookie)) return 0; - argp->block = ntohl(*p++); - exclusive = ntohl(*p++); - if (!(p = nlm4_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 +nlm4svc_encode_testres(struct svc_rqst *rqstp, __be32 *p) +{ + struct nlm_res *resp = rqstp->rq_resp; + + if (!(p = nlm4_encode_testres(p, resp))) + return 0; + return xdr_ressize_check(rqstp, p); } int