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 /*
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 */
25
26 /*
27 * SMB: unlock_byte_range
28 *
29 * This message is sent to unlock the given byte range. Offset, Count, and
30 * Pid must be identical to that specified in a prior successful lock. If
31 *
32 * an unlock references an address range that is not locked, no error is
33 * generated.
34 *
35 * Since Offset is a 32 bit quantity, this request is inappropriate for
36 * general locking within a very large file.
37 *
38 * Client Request Description
39 * ================================== =================================
40 *
41 * UCHAR WordCount; Count of parameter words = 5
42 * USHORT Fid; File handle
43 * ULONG Count; Count of bytes to unlock
44 * ULONG Offset; Offset from start of file
45 * USHORT ByteCount; Count of data bytes = 0
46 *
47 * Server Response Description
48 * ================================== =================================
49 *
50 * UCHAR WordCount; Count of parameter words = 0
51 * USHORT ByteCount; Count of data bytes = 0
52 */
53
54 #include <smbsrv/smb_kproto.h>
55
56 smb_sdrc_t
57 smb_pre_unlock_byte_range(smb_request_t *sr)
58 {
59 DTRACE_SMB_1(op__UnlockByteRange__start, smb_request_t *, sr);
60 return (SDRC_SUCCESS);
61 }
62
63 void
64 smb_post_unlock_byte_range(smb_request_t *sr)
65 {
66 DTRACE_SMB_1(op__UnlockByteRange__done, smb_request_t *, sr);
67 }
68
69 smb_sdrc_t
70 smb_com_unlock_byte_range(smb_request_t *sr)
71 {
72 uint32_t Length;
73 uint32_t Offset;
74 DWORD result;
75
76 if (smbsr_decode_vwv(sr, "wll", &sr->smb_fid, &Length, &Offset) != 0)
77 return (SDRC_ERROR);
78
79 smbsr_lookup_file(sr);
80 if (sr->fid_ofile == NULL) {
81 smbsr_error(sr, NT_STATUS_INVALID_HANDLE, ERRDOS, ERRbadfid);
82 return (SDRC_ERROR);
83 }
84
85 result = smb_unlock_range(sr, sr->fid_ofile->f_node,
86 (u_offset_t)Offset, (uint64_t)Length);
87 if (result != NT_STATUS_SUCCESS) {
88 smbsr_error(sr, NT_STATUS_RANGE_NOT_LOCKED,
89 ERRDOS, ERROR_NOT_LOCKED);
90 return (SDRC_ERROR);
91 }
92
93 if (smbsr_encode_empty_result(sr))
94 return (SDRC_ERROR);
95
96 return (SDRC_SUCCESS);
97 }
|
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 /*
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright 2017 Nexenta Systems, Inc. All rights reserved.
25 */
26
27 /*
28 * SMB: unlock_byte_range
29 *
30 * This message is sent to unlock the given byte range. Offset, Count, and
31 * Pid must be identical to that specified in a prior successful lock. If
32 *
33 * an unlock references an address range that is not locked, no error is
34 * generated.
35 *
36 * Since Offset is a 32 bit quantity, this request is inappropriate for
37 * general locking within a very large file.
38 *
39 * Client Request Description
40 * ================================== =================================
41 *
42 * UCHAR WordCount; Count of parameter words = 5
43 * USHORT Fid; File handle
44 * ULONG Count; Count of bytes to unlock
45 * ULONG Offset; Offset from start of file
46 * USHORT ByteCount; Count of data bytes = 0
47 *
48 * Server Response Description
49 * ================================== =================================
50 *
51 * UCHAR WordCount; Count of parameter words = 0
52 * USHORT ByteCount; Count of data bytes = 0
53 */
54
55 #include <smbsrv/smb_kproto.h>
56
57 smb_sdrc_t
58 smb_pre_unlock_byte_range(smb_request_t *sr)
59 {
60 DTRACE_SMB_START(op__UnlockByteRange, smb_request_t *, sr);
61 return (SDRC_SUCCESS);
62 }
63
64 void
65 smb_post_unlock_byte_range(smb_request_t *sr)
66 {
67 DTRACE_SMB_DONE(op__UnlockByteRange, smb_request_t *, sr);
68 }
69
70 smb_sdrc_t
71 smb_com_unlock_byte_range(smb_request_t *sr)
72 {
73 uint32_t Length;
74 uint32_t Offset;
75 uint32_t lk_pid;
76 DWORD result;
77
78 if (smbsr_decode_vwv(sr, "wll", &sr->smb_fid, &Length, &Offset) != 0)
79 return (SDRC_ERROR);
80
81 smbsr_lookup_file(sr);
82 if (sr->fid_ofile == NULL) {
83 smbsr_error(sr, NT_STATUS_INVALID_HANDLE, ERRDOS, ERRbadfid);
84 return (SDRC_ERROR);
85 }
86
87 /* Note: SMB1 locking uses 16-bit PIDs. */
88 lk_pid = sr->smb_pid & 0xFFFF;
89
90 result = smb_unlock_range(sr, (uint64_t)Offset, (uint64_t)Length,
91 lk_pid);
92 if (result != NT_STATUS_SUCCESS) {
93 smbsr_error(sr, NT_STATUS_RANGE_NOT_LOCKED,
94 ERRDOS, ERROR_NOT_LOCKED);
95 return (SDRC_ERROR);
96 }
97
98 if (smbsr_encode_empty_result(sr))
99 return (SDRC_ERROR);
100
101 return (SDRC_SUCCESS);
102 }
|