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 
26 /*
27  * SMB: process_exit
28  *
29  * This command informs the server that a client process has terminated.
30  * The server must close all files opened by Pid in the SMB header.  This
31  * must automatically release all locks the process holds.
32  *
33  * Client Request                     Description
34  * ================================== =================================
35  *
36  * UCHAR WordCount;                   Count of parameter words = 0
37  * USHORT ByteCount;                  Count of data bytes = 0
38  *
39  * Server Response                    Description
40  * ================================== =================================
41  *
42  * UCHAR WordCount;                   Count of parameter words = 0
43  *  USHORT ByteCount;                 Count of data bytes = 0
44  *
45  * This SMB should not generate any errors from the server, unless the
46  * server is a user mode server and Uid in the SMB header is invalid.
47  *
48  * Clients are not required to send this SMB, they can do all cleanup
49  * necessary by sending close SMBs to the server to release resources.  In
50  * fact, clients who have negotiated LANMAN 1.0 and later probably do not
51  * send this message at all.
52  */
53 
54 #include <smbsrv/smb_kproto.h>
55 
56 smb_sdrc_t
57 smb_pre_process_exit(smb_request_t *sr)
58 {
59 	DTRACE_SMB_1(op__ProcessExit__start, smb_request_t *, sr);
60 	return (SDRC_SUCCESS);
61 }
62 
63 void
64 smb_post_process_exit(smb_request_t *sr)
65 {
66 	DTRACE_SMB_1(op__ProcessExit__done, smb_request_t *, sr);
67 }
68 
69 smb_sdrc_t
70 smb_com_process_exit(smb_request_t *sr)
71 {
72 	int rc;
73 
74 	sr->uid_user = smb_session_lookup_uid(sr->session, sr->smb_uid);
75 	if (sr->uid_user == NULL) {
76 		rc = smbsr_encode_empty_result(sr);
77 		return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
78 	}
79 
80 	sr->user_cr = smb_user_getcred(sr->uid_user);
81 
82 	/*
83 	 * If request has a valid tree ID, only look for the PID within
84 	 * that tree.  Otherwise look in all the trees.  smbtorture seems
85 	 * to be the only thing that sends this request these days and
86 	 * it doesn't provide a TID.
87 	 */
88 	sr->tid_tree = smb_user_lookup_tree(sr->uid_user, sr->smb_tid);
89 	if (sr->tid_tree != NULL)
90 		smb_tree_close_pid(sr->tid_tree, sr->smb_pid);
91 	else
92 		smb_user_close_pid(sr->uid_user, sr->smb_pid);
93 
94 	rc = smbsr_encode_empty_result(sr);
95 	return ((rc == 0) ? SDRC_SUCCESS : SDRC_ERROR);
96 }
97