xref: /illumos-gate/usr/src/uts/common/fs/smbsrv/smb_errno.c (revision d2488fe8c5950495aef5404c8d98081be7d43487)
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 
42 struct errno2status {
43 	int errnum;
44 	uint_t status;
45 };
46 
47 static const struct errno2status
48 smb_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 
92 uint_t
93 smb_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  */
112 uint16_t
113 smb_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