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/*
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 * Translate Unix errno values to NT status, and NT status to
29 * DOS-style error class+code (for SMB1)
30 */
31
32#include <smbsrv/smb_kproto.h>
33#include <smbsrv/smb_kstat.h>
34
35#include "smbclnt/smb_status2winerr.h"
36
37
38/*
39 * Map Unix errno values to NT status values.
40 */
41
42struct errno2status {
43	int errnum;
44	uint_t status;
45};
46
47static const struct errno2status
48smb_errno2status_map[] = {
49	{ EPERM,	NT_STATUS_ACCESS_DENIED },
50	{ ENOENT,	NT_STATUS_OBJECT_NAME_NOT_FOUND },
51	/* NB: ESRCH is used in rename and stream ops. */
52	{ ESRCH,	NT_STATUS_NO_SUCH_FILE },
53	{ EINTR,	NT_STATUS_CANCELLED },
54	{ EIO,		NT_STATUS_IO_DEVICE_ERROR },
55	{ ENXIO,	NT_STATUS_BAD_DEVICE_TYPE },
56	/* E2BIG, ENOEXEC */
57	{ EBADF,	NT_STATUS_INVALID_HANDLE },
58	/* ECHILD, EAGAIN */
59	{ ENOMEM,	NT_STATUS_NO_MEMORY },
60	{ EACCES,	NT_STATUS_ACCESS_DENIED },
61	/* EFAULT, ENOTBLK, EBUSY */
62	{ EEXIST,	NT_STATUS_OBJECT_NAME_COLLISION },
63	{ EXDEV,	NT_STATUS_NOT_SAME_DEVICE },
64	{ ENODEV,	NT_STATUS_NO_SUCH_DEVICE },
65	{ ENOTDIR,	NT_STATUS_OBJECT_PATH_NOT_FOUND },
66	{ EISDIR,	NT_STATUS_FILE_IS_A_DIRECTORY },
67	{ EINVAL,	NT_STATUS_INVALID_PARAMETER },
68	{ ENFILE,	NT_STATUS_TOO_MANY_OPENED_FILES },
69	{ EMFILE,	NT_STATUS_TOO_MANY_OPENED_FILES },
70	{ ENOTTY,	NT_STATUS_INVALID_DEVICE_REQUEST },
71	/* ENOTTY, ETXTBSY, EFBIG */
72	{ ENOSPC,	NT_STATUS_DISK_FULL },
73	/* ESPIPE */
74	{ EROFS,	NT_STATUS_ACCESS_DENIED },
75	{ EMLINK,	NT_STATUS_TOO_MANY_LINKS },
76	{ EPIPE,	NT_STATUS_PIPE_BROKEN },
77	/* EDOM */
78	/* NB: ERANGE is used to represent lock range I/O conflicts. */
79	{ ERANGE,	NT_STATUS_FILE_LOCK_CONFLICT },
80	/* ENOMSG, EIDRM, ... */
81	{ ENOTSUP,	NT_STATUS_NOT_SUPPORTED },
82	{ EDQUOT,	NT_STATUS_DISK_FULL },
83	{ EREMOTE,	NT_STATUS_PATH_NOT_COVERED},
84	{ ENAMETOOLONG,	NT_STATUS_OBJECT_NAME_INVALID },
85	{ EILSEQ,	NT_STATUS_OBJECT_NAME_INVALID },
86	{ ENOTEMPTY,	NT_STATUS_DIRECTORY_NOT_EMPTY },
87	{ ENOTSOCK,	NT_STATUS_INVALID_HANDLE },
88	{ ESTALE,	NT_STATUS_INVALID_HANDLE },
89	{ 0, 0 }
90};
91
92uint_t
93smb_errno2status(int errnum)
94{
95	const struct errno2status *es;
96
97	if (errnum == 0)
98		return (0);
99
100	for (es = smb_errno2status_map; es->errnum != 0; es++)
101		if (es->errnum == errnum)
102			return (es->status);
103
104	return (NT_STATUS_INTERNAL_ERROR);
105}
106
107/*
108 * Map NT Status codes to Win32 API error numbers.
109 * But note: we only want the ones below 0xFFFF,
110 * which can be returned in SMB with class=DOSERR.
111 */
112uint16_t
113smb_status2doserr(uint_t status)
114{
115	const struct status2winerr *sw;
116
117	if (status == 0)
118		return (0);
119
120	for (sw = smb_status2winerr_map; sw->status != 0; sw++)
121		if (sw->status == status && (sw->winerr < 0xFFFF))
122			return ((uint16_t)sw->winerr);
123
124	return (ERROR_GEN_FAILURE);
125}
126