From patchwork Tue May 8 23:55:35 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ronnie Sahlberg X-Patchwork-Id: 10387785 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 78AF360159 for ; Tue, 8 May 2018 23:56:49 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 88C6728ED2 for ; Tue, 8 May 2018 23:56:49 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7DC9028F5F; Tue, 8 May 2018 23:56:49 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 142BE28ED2 for ; Tue, 8 May 2018 23:56:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932812AbeEHX4s (ORCPT ); Tue, 8 May 2018 19:56:48 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:52214 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932500AbeEHX4s (ORCPT ); Tue, 8 May 2018 19:56:48 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id BF4AC406F8B0; Tue, 8 May 2018 23:56:47 +0000 (UTC) Received: from test1190.test.redhat.com (vpn2-54-81.bne.redhat.com [10.64.54.81]) by smtp.corp.redhat.com (Postfix) with ESMTP id 7EDD1215CDA7; Tue, 8 May 2018 23:56:46 +0000 (UTC) From: Ronnie Sahlberg To: linux-cifs Cc: Steve French Subject: [PATCH 18/20] cifs: add SMB2_query_info_[init|free]() Date: Wed, 9 May 2018 09:55:35 +1000 Message-Id: <20180508235537.31416-19-lsahlber@redhat.com> In-Reply-To: <20180508235537.31416-1-lsahlber@redhat.com> References: <20180508235537.31416-1-lsahlber@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.7]); Tue, 08 May 2018 23:56:47 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.7]); Tue, 08 May 2018 23:56:47 +0000 (UTC) for IP:'10.11.54.6' DOMAIN:'int-mx06.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'lsahlber@redhat.com' RCPT:'' Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Ronnie Sahlberg --- fs/cifs/smb2pdu.c | 70 +++++++++++++++++++++++++++++++++++------------------ fs/cifs/smb2proto.h | 5 ++++ 2 files changed, 52 insertions(+), 23 deletions(-) diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 37ab70048ba0..e04632ea751e 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -2329,36 +2329,23 @@ validate_and_copy_iov(unsigned int offset, unsigned int buffer_length, return 0; } -static int -query_info(const unsigned int xid, struct cifs_tcon *tcon, - u64 persistent_fid, u64 volatile_fid, u8 info_class, u8 info_type, - u32 additional_info, size_t output_len, size_t min_len, void **data, - u32 *dlen) + +int +SMB2_query_info_init(struct cifs_tcon *tcon, struct smb_rqst *rqst, + u64 persistent_fid, u64 volatile_fid, + u8 info_class, u8 info_type, u32 additional_info, + size_t output_len) { - struct smb_rqst rqst; struct smb2_query_info_req *req; - struct smb2_query_info_rsp *rsp = NULL; - struct kvec iov[2]; - struct kvec rsp_iov; - int rc = 0; - int resp_buftype; - struct cifs_ses *ses = tcon->ses; - int flags = 0; + struct kvec *iov = rqst->rq_iov; unsigned int total_len; - - cifs_dbg(FYI, "Query Info\n"); - - if (!ses || !(ses->server)) - return -EIO; + int rc; rc = smb2_plain_req_init(SMB2_QUERY_INFO, tcon, (void **) &req, &total_len); if (rc) return rc; - if (encryption_required(tcon)) - flags |= CIFS_TRANSFORM_REQ; - req->InfoType = info_type; req->FileInfoClass = info_class; req->PersistentFileId = persistent_fid; @@ -2369,19 +2356,55 @@ query_info(const unsigned int xid, struct cifs_tcon *tcon, * We do not use the input buffer (do not send extra byte) */ req->InputBufferOffset = 0; - req->OutputBufferLength = cpu_to_le32(output_len); iov[0].iov_base = (char *)req; /* 1 for Buffer */ iov[0].iov_len = total_len - 1; + return 0; +} + +void +SMB2_query_info_free(struct smb_rqst *rqst) { + cifs_small_buf_release(rqst->rq_iov[0].iov_base); /* request */ +} + +static int +query_info(const unsigned int xid, struct cifs_tcon *tcon, + u64 persistent_fid, u64 volatile_fid, u8 info_class, u8 info_type, + u32 additional_info, size_t output_len, size_t min_len, void **data, + u32 *dlen) +{ + struct smb_rqst rqst; + struct smb2_query_info_rsp *rsp = NULL; + struct kvec iov[1]; + struct kvec rsp_iov; + int rc = 0; + int resp_buftype; + struct cifs_ses *ses = tcon->ses; + int flags = 0; + + cifs_dbg(FYI, "Query Info\n"); + + if (!ses || !(ses->server)) + return -EIO; + + if (encryption_required(tcon)) + flags |= CIFS_TRANSFORM_REQ; + memset(&rqst, 0, sizeof(struct smb_rqst)); + memset(&iov, 0, sizeof(iov)); rqst.rq_iov = iov; rqst.rq_nvec = 1; + rc = SMB2_query_info_init(tcon, &rqst, persistent_fid, volatile_fid, + info_class, info_type, additional_info, + output_len); + if (rc) + goto qinf_exit; + rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov); - cifs_small_buf_release(req); rsp = (struct smb2_query_info_rsp *)rsp_iov.iov_base; if (rc) { @@ -2408,6 +2431,7 @@ query_info(const unsigned int xid, struct cifs_tcon *tcon, &rsp_iov, min_len, *data); qinf_exit: + SMB2_query_info_free(&rqst); free_rsp_buf(resp_buftype, rsp); return rc; } diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h index e78de5a3baca..1d119cdef62e 100644 --- a/fs/cifs/smb2proto.h +++ b/fs/cifs/smb2proto.h @@ -148,6 +148,11 @@ extern int SMB2_query_eas(const unsigned int xid, struct cifs_tcon *tcon, extern int SMB2_query_info(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_file_id, u64 volatile_file_id, struct smb2_file_all_info *data); +extern int SMB2_query_info_init(struct cifs_tcon *tcon, struct smb_rqst *rqst, + u64 persistent_fid, u64 volatile_fid, + u8 info_class, u8 info_type, + u32 additional_info, size_t output_len); +extern void SMB2_query_info_free(struct smb_rqst *rqst); extern int SMB2_query_acl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_file_id, u64 volatile_file_id, void **data, unsigned int *plen);