1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 /* 29 * SMB: nt_cancel 30 * 31 * This SMB allows a client to cancel a request currently pending at the 32 * server. 33 * 34 * Client Request Description 35 * ================================== ================================= 36 * 37 * UCHAR WordCount; No words are sent (== 0) 38 * USHORT ByteCount; No bytes (==0) 39 * 40 * The Sid, Uid, Pid, Tid, and Mid fields of the SMB are used to locate an 41 * pending server request from this session. If a pending request is 42 * found, it is "hurried along" which may result in success or failure of 43 * the original request. No other response is generated for this SMB. 44 */ 45 46 #include <smbsrv/smb_incl.h> 47 48 int 49 smb_com_nt_cancel(struct smb_request *sr) 50 { 51 struct smb_request *req; 52 struct smb_session *session; 53 54 session = sr->session; 55 56 smb_slist_enter(&session->s_req_list); 57 req = smb_slist_head(&session->s_req_list); 58 while (req) { 59 ASSERT(req->sr_magic == SMB_REQ_MAGIC); 60 if ((req != sr) && 61 (req->smb_sid == sr->smb_sid) && 62 (req->smb_uid == sr->smb_uid) && 63 (req->smb_pid == sr->smb_pid) && 64 (req->smb_tid == sr->smb_tid) && 65 (req->smb_mid == sr->smb_mid)) { 66 smb_request_cancel(req); 67 } 68 req = smb_slist_next(&session->s_req_list, req); 69 } 70 smb_slist_exit(&session->s_req_list); 71 72 /* Now, search the notify change queue to find the request */ 73 74 smb_reply_specific_cancel_request(sr); 75 76 return (SDRC_NO_REPLY); 77 } 78