From patchwork Mon Mar 19 22:50:00 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ronnie Sahlberg X-Patchwork-Id: 10295763 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 E0D88602C2 for ; Mon, 19 Mar 2018 22:51:20 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D38A829297 for ; Mon, 19 Mar 2018 22:51:20 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C84FF294A0; Mon, 19 Mar 2018 22:51:20 +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=-6.9 required=2.0 tests=BAYES_00,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 62B6D29297 for ; Mon, 19 Mar 2018 22:51:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755513AbeCSWvT (ORCPT ); Mon, 19 Mar 2018 18:51:19 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:39526 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754668AbeCSWvT (ORCPT ); Mon, 19 Mar 2018 18:51:19 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E101B40214E2; Mon, 19 Mar 2018 22:51:18 +0000 (UTC) Received: from test1190.test.redhat.com (vpn2-54-41.bne.redhat.com [10.64.54.41]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6B5BD10AF9F2; Mon, 19 Mar 2018 22:51:17 +0000 (UTC) From: Ronnie Sahlberg To: linux-cifs Cc: Steve French Subject: [PATCH 13/15] cifs: add SMB2_query_info_[init|free]() Date: Tue, 20 Mar 2018 09:50:00 +1100 Message-Id: <20180319225002.7451-14-lsahlber@redhat.com> In-Reply-To: <20180319225002.7451-1-lsahlber@redhat.com> References: <20180319225002.7451-1-lsahlber@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.3 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.7]); Mon, 19 Mar 2018 22:51:18 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.7]); Mon, 19 Mar 2018 22:51:18 +0000 (UTC) for IP:'10.11.54.3' DOMAIN:'int-mx03.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 8fa9d63c61a2..cfd861a5982b 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -2210,36 +2210,23 @@ 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; @@ -2250,19 +2237,55 @@ 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) { @@ -2289,6 +2312,7 @@ 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 9d161a3d3a4b..53f2f369d384 100644 --- a/fs/cifs/smb2proto.h +++ b/fs/cifs/smb2proto.h @@ -146,6 +146,11 @@ 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);