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 2010 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 *
25 * Copyright 2017 Nexenta Systems, Inc.  All rights reserved.
26 */
27
28/*
29 * SMB: process_exit
30 *
31 * This command informs the server that a client process has terminated.
32 * The server must close all files opened by Pid in the SMB header.  This
33 * must automatically release all locks the process holds.
34 *
35 * Client Request                     Description
36 * ================================== =================================
37 *
38 * UCHAR WordCount;                   Count of parameter words = 0
39 * USHORT ByteCount;                  Count of data bytes = 0
40 *
41 * Server Response                    Description
42 * ================================== =================================
43 *
44 * UCHAR WordCount;                   Count of parameter words = 0
45 *  USHORT ByteCount;                 Count of data bytes = 0
46 *
47 * This SMB should not generate any errors from the server, unless the
48 * server is a user mode server and Uid in the SMB header is invalid.
49 *
50 * Clients are not required to send this SMB, they can do all cleanup
51 * necessary by sending close SMBs to the server to release resources.  In
52 * fact, clients who have negotiated LANMAN 1.0 and later probably do not
53 * send this message at all.
54 */
55
56#include <smbsrv/smb_kproto.h>
57
58smb_sdrc_t
59smb_pre_process_exit(smb_request_t *sr)
60{
61	DTRACE_SMB_START(op__ProcessExit, smb_request_t *, sr);
62	return (SDRC_SUCCESS);
63}
64
65void
66smb_post_process_exit(smb_request_t *sr)
67{
68	DTRACE_SMB_DONE(op__ProcessExit, smb_request_t *, sr);
69}
70
71smb_sdrc_t
72smb_com_process_exit(smb_request_t *sr)
73{
74	int rc;
75
76	sr->uid_user = smb_session_lookup_uid(sr->session, sr->smb_uid);
77	if (sr->uid_user == NULL) {
78		rc = smbsr_encode_empty_result(sr);
79		return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
80	}
81
82	sr->user_cr = smb_user_getcred(sr->uid_user);
83
84	/*
85	 * If request has a valid tree ID, only look for the PID within
86	 * that tree.  Otherwise look in all the trees.  smbtorture seems
87	 * to be the only thing that sends this request these days and
88	 * it doesn't provide a TID.
89	 */
90	sr->tid_tree = smb_session_lookup_tree(sr->session, sr->smb_tid);
91	if (sr->tid_tree != NULL)
92		smb_tree_close_pid(sr->tid_tree, sr->smb_pid);
93	else
94		smb_session_close_pid(sr->session, sr->smb_pid);
95
96	rc = smbsr_encode_empty_result(sr);
97	return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
98}
99