xref: /illumos-gate/usr/src/uts/common/fs/smbsrv/smb_errno.c (revision dd72704bd9e794056c558153663c739e2012d721)
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  * Copyright 2021 RackTop Systems, Inc.
26  */
27 
28 /*
29  * Translate Unix errno values to NT status, and NT status to
30  * DOS-style error class+code (for SMB1)
31  */
32 
33 #include <smbsrv/smb_kproto.h>
34 #include <smbsrv/smb_kstat.h>
35 
36 #include "smbclnt/smb_status2winerr.h"
37 
38 
39 /*
40  * Map Unix errno values to NT status values.
41  */
42 
43 struct errno2status {
44 	int errnum;
45 	uint_t status;
46 };
47 
48 static const struct errno2status
49 smb_errno2status_map[] = {
50 	{ EPERM,	NT_STATUS_ACCESS_DENIED },
51 	{ ENOENT,	NT_STATUS_OBJECT_NAME_NOT_FOUND },
52 	/* NB: ESRCH is used in rename and stream ops. */
53 	{ ESRCH,	NT_STATUS_NO_SUCH_FILE },
54 	{ EINTR,	NT_STATUS_CANCELLED },
55 	{ EIO,		NT_STATUS_IO_DEVICE_ERROR },
56 	{ ENXIO,	NT_STATUS_BAD_DEVICE_TYPE },
57 	/* E2BIG, ENOEXEC */
58 	{ EBADF,	NT_STATUS_INVALID_HANDLE },
59 	/* ECHILD, EAGAIN */
60 	{ ENOMEM,	NT_STATUS_NO_MEMORY },
61 	{ EACCES,	NT_STATUS_ACCESS_DENIED },
62 	/* EFAULT, ENOTBLK, EBUSY */
63 	{ EEXIST,	NT_STATUS_OBJECT_NAME_COLLISION },
64 	{ EXDEV,	NT_STATUS_NOT_SAME_DEVICE },
65 	{ ENODEV,	NT_STATUS_NO_SUCH_DEVICE },
66 	{ ENOTDIR,	NT_STATUS_OBJECT_PATH_NOT_FOUND },
67 	{ EISDIR,	NT_STATUS_FILE_IS_A_DIRECTORY },
68 	{ EINVAL,	NT_STATUS_INVALID_PARAMETER },
69 	{ ENFILE,	NT_STATUS_TOO_MANY_OPENED_FILES },
70 	{ EMFILE,	NT_STATUS_TOO_MANY_OPENED_FILES },
71 	{ ENOTTY,	NT_STATUS_INVALID_DEVICE_REQUEST },
72 	/* ENOTTY, ETXTBSY, EFBIG */
73 	{ ENOSPC,	NT_STATUS_DISK_FULL },
74 	/* ESPIPE */
75 	{ EROFS,	NT_STATUS_ACCESS_DENIED },
76 	{ EMLINK,	NT_STATUS_TOO_MANY_LINKS },
77 	{ EPIPE,	NT_STATUS_PIPE_BROKEN },
78 	/* EDOM */
79 	/* NB: ERANGE is used to represent lock range I/O conflicts. */
80 	{ ERANGE,	NT_STATUS_FILE_LOCK_CONFLICT },
81 	/* ENOMSG, EIDRM, ... */
82 	{ ENOTSUP,	NT_STATUS_NOT_SUPPORTED },
83 	{ EDQUOT,	NT_STATUS_DISK_FULL },
84 	{ EREMOTE,	NT_STATUS_PATH_NOT_COVERED},
85 	{ ENAMETOOLONG,	NT_STATUS_NAME_TOO_LONG },
86 	{ EILSEQ,	NT_STATUS_OBJECT_NAME_INVALID },
87 	{ ENOTEMPTY,	NT_STATUS_DIRECTORY_NOT_EMPTY },
88 	{ ENOTSOCK,	NT_STATUS_INVALID_HANDLE },
89 	{ ESTALE,	NT_STATUS_INVALID_HANDLE },
90 	{ 0, 0 }
91 };
92 
93 uint_t
94 smb_errno2status(int errnum)
95 {
96 	const struct errno2status *es;
97 
98 	if (errnum == 0)
99 		return (0);
100 
101 	for (es = smb_errno2status_map; es->errnum != 0; es++)
102 		if (es->errnum == errnum)
103 			return (es->status);
104 
105 	return (NT_STATUS_INTERNAL_ERROR);
106 }
107 
108 /*
109  * Map NT Status codes to Win32 API error numbers.
110  * But note: we only want the ones below 0xFFFF,
111  * which can be returned in SMB with class=DOSERR.
112  */
113 uint16_t
114 smb_status2doserr(uint_t status)
115 {
116 	const struct status2winerr *sw;
117 
118 	if (status == 0)
119 		return (0);
120 
121 	for (sw = smb_status2winerr_map; sw->status != 0; sw++)
122 		if (sw->status == status && (sw->winerr < 0xFFFF))
123 			return ((uint16_t)sw->winerr);
124 
125 	return (ERROR_GEN_FAILURE);
126 }
127