xref: /illumos-gate/usr/src/uts/common/smbsrv/ntifs.h (revision c5f48fa536d16d8fe59d1bb62faa7eb8e891610c)
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  * Copyright 2016 Nexenta Systems, Inc.  All rights reserved.
26  * Copyright (c) 2016 by Delphix. All rights reserved.
27  */
28 
29 #ifndef _SMBSRV_NTIFS_H
30 #define	_SMBSRV_NTIFS_H
31 
32 /*
33  * This file provides definitions compatible with the NT Installable
34  * File System (IFS) interface. This header file also defines the Security
35  * Descriptor module from Windows.
36  */
37 
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
41 
42 #include <sys/acl.h>
43 #include <sys/list.h>
44 #include <smbsrv/smb_sid.h>
45 
46 /*
47  * The Volume and Directory bits are for SMB rather than NT.
48  * NT has an explicit Normal bit; this bit is implied in SMB
49  * when the Hidden, System and Directory bits are not set.
50  *
51  * File attributes and creation flags share the same 32-bit
52  * space.
53  */
54 #define	FILE_ATTRIBUTE_READONLY			0x00000001
55 #define	FILE_ATTRIBUTE_HIDDEN			0x00000002
56 #define	FILE_ATTRIBUTE_SYSTEM			0x00000004
57 #define	FILE_ATTRIBUTE_VOLUME			0x00000008
58 #define	FILE_ATTRIBUTE_DIRECTORY		0x00000010
59 #define	FILE_ATTRIBUTE_ARCHIVE			0x00000020
60 #define	FILE_ATTRIBUTE_DEVICE			0x00000040
61 #define	FILE_ATTRIBUTE_NORMAL			0x00000080
62 #define	FILE_ATTRIBUTE_TEMPORARY		0x00000100
63 #define	FILE_ATTRIBUTE_SPARSE_FILE		0x00000200
64 #define	FILE_ATTRIBUTE_REPARSE_POINT		0x00000400
65 #define	FILE_ATTRIBUTE_COMPRESSED		0x00000800
66 #define	FILE_ATTRIBUTE_OFFLINE			0x00001000
67 #define	FILE_ATTRIBUTE_NOT_CONTENT_INDEXED	0x00002000
68 #define	FILE_ATTRIBUTE_ENCRYPTED		0x00004000
69 #define	FILE_ATTRIBUTE_VIRTUAL			0x00010000
70 #define	FILE_FLAG_OPEN_NO_RECALL		0x00100000
71 #define	FILE_FLAG_OPEN_REPARSE_POINT		0x00200000
72 #define	FILE_FLAG_POSIX_SEMANTICS		0x01000000
73 #define	FILE_FLAG_BACKUP_SEMANTICS		0x02000000
74 #define	FILE_FLAG_DELETE_ON_CLOSE		0x04000000
75 #define	FILE_FLAG_SEQUENTIAL_SCAN		0x08000000
76 #define	FILE_FLAG_RANDOM_ACCESS			0x10000000
77 #define	FILE_FLAG_NO_BUFFERING			0x20000000
78 #define	FILE_FLAG_OVERLAPPED			0x40000000
79 #define	FILE_FLAG_WRITE_THROUGH			0x80000000
80 
81 #define	FILE_ATTRIBUTE_VALID_FLAGS		0x00001fb7
82 #define	FILE_ATTRIBUTE_VALID_SET_FLAGS		0x00001fa7
83 #define	FILE_ATTRIBUTE_MASK			0x00003FFF
84 
85 /*
86  * The create/open option flags: used in NtCreateAndx and NtTransactCreate
87  * SMB requests.
88  *
89  * The CreateOptions specify the options to be applied when creating or
90  * opening the file, as a compatible combination of the following flags:
91  *
92  * FILE_DIRECTORY_FILE
93  *	The file being created or opened is a directory file. With this
94  *	flag, the Disposition parameter must be set to one of FILE_CREATE,
95  *	FILE_OPEN, or FILE_OPEN_IF. With this flag, other compatible
96  *	CreateOptions flags include only the following:
97  *			FILE_SYNCHRONOUS_IO_ALERT
98  *			FILE_SYNCHRONOUS_IO_NONALERT
99  *			FILE_WRITE_THROUGH
100  *			FILE_OPEN_FOR_BACKUP_INTENT
101  *			FILE_OPEN_BY_FILE_ID
102  *
103  * FILE_NON_DIRECTORY_FILE
104  *	The file being opened must not be a directory file or this call
105  *	will fail. The file object being opened can represent a data file,
106  *	a logical, virtual, or physical device, or a volume.
107  *
108  * FILE_WRITE_THROUGH
109  *	System services, FSDs, and drivers that write data to the file must
110  *	actually transfer the data into the file before any requested write
111  *	operation is considered complete. This flag is automatically set if
112  *	the CreateOptions flag FILE_NO_INTERMEDIATE _BUFFERING is set.
113  *
114  * FILE_SEQUENTIAL_ONLY
115  *	All accesses to the file will be sequential.
116  *
117  * FILE_RANDOM_ACCESS
118  *	Accesses to the file can be random, so no sequential read-ahead
119  *	operations should be performed on the file by FSDs or the system.
120  *	FILE_NO_INTERMEDIATE _BUFFERING	The file cannot be cached or
121  *	buffered in a driver's internal buffers. This flag is incompatible
122  *	with the DesiredAccess FILE_APPEND_DATA flag.
123  *
124  * FILE_SYNCHRONOUS_IO_ALERT
125  *	All operations on the file are performed synchronously. Any wait
126  *	on behalf of the caller is subject to premature termination from
127  *	alerts. This flag also causes the I/O system to maintain the file
128  *	position context. If this flag is set, the DesiredAccess
129  *	SYNCHRONIZE flag also must be set.
130  *
131  * FILE_SYNCHRONOUS_IO _NONALERT
132  *	All operations on the file are performed synchronously. Waits in
133  *	the system to synchronize I/O queuing and completion are not subject
134  *	to alerts. This flag also causes the I/O system to maintain the file
135  *	position context. If this flag is set, the DesiredAccess SYNCHRONIZE
136  *	flag also must be set.
137  *
138  * FILE_CREATE_TREE _CONNECTION
139  *	Create a tree connection for this file in order to open it over the
140  *	network. This flag is irrelevant to device and intermediate drivers.
141  *
142  * FILE_COMPLETE_IF_OPLOCKED
143  *	Complete this operation immediately with an alternate success code
144  *	if the target file is oplocked, rather than blocking the caller's
145  *	thread. If the file is oplocked, another caller already has access
146  *	to the file over the network. This flag is irrelevant to device and
147  *	intermediate drivers.
148  *
149  * FILE_NO_EA_KNOWLEDGE
150  *	If the extended attributes on an existing file being opened indicate
151  *	that the caller must understand EAs to properly interpret the file,
152  *	fail this request because the caller does not understand how to deal
153  *	with EAs. Device and intermediate drivers can ignore this flag.
154  *
155  * FILE_DELETE_ON_CLOSE
156  *	Delete the file when the last reference to it is passed to close.
157  *
158  * FILE_OPEN_BY_FILE_ID
159  *	The file name contains the name of a device and a 64-bit ID to
160  *	be used to open the file. This flag is irrelevant to device and
161  *	intermediate drivers.
162  *
163  * FILE_OPEN_FOR_BACKUP _INTENT
164  *	The file is being opened for backup intent, hence, the system should
165  *	check for certain access rights and grant the caller the appropriate
166  *	accesses to the file before checking the input DesiredAccess against
167  *	the file's security descriptor. This flag is irrelevant to device
168  *	and intermediate drivers.
169  */
170 #define	FILE_DIRECTORY_FILE			0x00000001
171 #define	FILE_WRITE_THROUGH			0x00000002
172 #define	FILE_SEQUENTIAL_ONLY			0x00000004
173 #define	FILE_NO_INTERMEDIATE_BUFFERING		0x00000008
174 
175 #define	FILE_SYNCHRONOUS_IO_ALERT		0x00000010
176 #define	FILE_SYNCHRONOUS_IO_NONALERT		0x00000020
177 #define	FILE_NON_DIRECTORY_FILE			0x00000040
178 #define	FILE_CREATE_TREE_CONNECTION		0x00000080
179 
180 #define	FILE_COMPLETE_IF_OPLOCKED		0x00000100
181 #define	FILE_NO_EA_KNOWLEDGE			0x00000200
182 /* UNUSED					0x00000400 */
183 #define	FILE_RANDOM_ACCESS			0x00000800
184 
185 #define	FILE_DELETE_ON_CLOSE			0x00001000
186 #define	FILE_OPEN_BY_FILE_ID			0x00002000
187 #define	FILE_OPEN_FOR_BACKUP_INTENT		0x00004000
188 #define	FILE_NO_COMPRESSION			0x00008000
189 
190 #define	FILE_RESERVE_OPFILTER			0x00100000
191 #define	FILE_RESERVED0				0x00200000
192 #define	FILE_RESERVED1				0x00400000
193 #define	FILE_RESERVED2				0x00800000
194 
195 #define	FILE_VALID_OPTION_FLAGS			0x00ffffff
196 #define	FILE_VALID_PIPE_OPTION_FLAGS		0x00000032
197 #define	FILE_VALID_MAILSLOT_OPTION_FLAGS	0x00000032
198 #define	FILE_VALID_SET_FLAGS			0x00000036
199 
200 /*
201  * Define the file information class values used by the NT DDK and HAL.
202  */
203 typedef enum _FILE_INFORMATION_CLASS {
204 	FileDirectoryInformation		= 1,
205 	FileFullDirectoryInformation,		/* 2 */
206 	FileBothDirectoryInformation,		/* 3 */
207 	FileBasicInformation,			/* 4 */
208 	FileStandardInformation,		/* 5 */
209 	FileInternalInformation,		/* 6 */
210 	FileEaInformation,			/* 7 */
211 	FileAccessInformation,			/* 8 */
212 	FileNameInformation,			/* 9 */
213 	FileRenameInformation,			/* 10 */
214 	FileLinkInformation,			/* 11 */
215 	FileNamesInformation,			/* 12 */
216 	FileDispositionInformation,		/* 13 */
217 	FilePositionInformation,		/* 14 */
218 	FileFullEaInformation,			/* 15 */
219 	FileModeInformation,			/* 16 */
220 	FileAlignmentInformation,		/* 17 */
221 	FileAllInformation,			/* 18 */
222 	FileAllocationInformation,		/* 19 */
223 	FileEndOfFileInformation,		/* 20 */
224 	FileAlternateNameInformation,		/* 21 */
225 	FileStreamInformation,			/* 22 */
226 	FilePipeInformation,			/* 23 */
227 	FilePipeLocalInformation,		/* 24 */
228 	FilePipeRemoteInformation,		/* 25 */
229 	FileMailslotQueryInformation,		/* 26 */
230 	FileMailslotSetInformation,		/* 27 */
231 	FileCompressionInformation,		/* 28 */
232 	FileObjectIdInformation,		/* 29 */
233 	FileCompletionInformation,		/* 30 */
234 	FileMoveClusterInformation,		/* 31 */
235 	FileQuotaInformation,			/* 32 */
236 	FileReparsePointInformation,		/* 33 */
237 	FileNetworkOpenInformation,		/* 34 */
238 	FileAttributeTagInformation,		/* 35 */
239 	FileTrackingInformation,		/* 36 */
240 	FileIdBothDirectoryInformation,		/* 37 */
241 	FileIdFullDirectoryInformation,		/* 38 */
242 	FileValidDataLengthInformation,		/* 39 */
243 	FileShortNameInformation,		/* 40 */
244 	FileInformationReserved41,		/* 41 */
245 	FileInformationReserved42,		/* 42 */
246 	FileInformationReserved43,		/* 43 */
247 	FileSfioReserveInformation,		/* 44 */
248 	FileSfioVolumeInformation,		/* 45 */
249 	FileHardLinkInformation,		/* 46 */
250 	FileInformationReserved47,		/* 47 */
251 	FileNormalizedNameInformation,		/* 48 */
252 	FileInformationReserved49,		/* 49 */
253 	FileIdGlobalTxDirectoryInformation,	/* 50 */
254 	FileInformationReserved51,		/* 51 */
255 	FileInformationReserved52,		/* 52 */
256 	FileInformationReserved53,		/* 53 */
257 	FileStandardLinkInformation,		/* 54 */
258 	FileMaximumInformation
259 } FILE_INFORMATION_CLASS;
260 
261 /*
262  * Define the file system information class values.
263  */
264 typedef enum _FILE_FS_INFORMATION_CLASS {
265 	FileFsVolumeInformation		= 1,
266 	FileFsLabelInformation,		/* 2 */
267 	FileFsSizeInformation,		/* 3 */
268 	FileFsDeviceInformation,	/* 4 */
269 	FileFsAttributeInformation,	/* 5 */
270 	FileFsControlInformation,	/* 6 */
271 	FileFsFullSizeInformation,	/* 7 */
272 	FileFsObjectIdInformation,	/* 8 */
273 	FileFsDriverPathInformation	/* 9 */
274 } FILE_FS_INFORMATION_CLASS;
275 
276 /*
277  * Discretionary Access Control List (DACL)
278  *
279  * A Discretionary Access Control List (DACL), often abbreviated to
280  * ACL, is a list of access controls which either allow or deny access
281  * for users or groups to a resource. There is a list header followed
282  * by a list of access control entries (ACE). Each ACE specifies the
283  * access allowed or denied to a single user or group (identified by
284  * a SID).
285  *
286  * There is another access control list object called a System Access
287  * Control List (SACL), which is used to control auditing, but no
288  * support is provideed for SACLs at this time.
289  *
290  * ACL header format:
291  *
292  *    3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
293  *    1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
294  *   +-------------------------------+---------------+---------------+
295  *   |            AclSize            |      Sbz1     |  AclRevision  |
296  *   +-------------------------------+---------------+---------------+
297  *   |              Sbz2             |           AceCount            |
298  *   +-------------------------------+-------------------------------+
299  *
300  * AclRevision specifies the revision level of the ACL. This value should
301  * be ACL_REVISION, unless the ACL contains an object-specific ACE, in which
302  * case this value must be ACL_REVISION_DS. All ACEs in an ACL must be at the
303  * same revision level.
304  *
305  * ACE header format:
306  *
307  *    3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
308  *    1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
309  *   +---------------+-------+-------+---------------+---------------+
310  *   |            AceSize            |    AceFlags   |     AceType   |
311  *   +---------------+-------+-------+---------------+---------------+
312  *
313  * Access mask format:
314  *
315  *    3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
316  *    1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
317  *   +---------------+---------------+-------------------------------+
318  *   |G|G|G|G|Res'd|A| StandardRights|         SpecificRights        |
319  *   |R|W|E|A|     |S|               |                               |
320  *   +-+-------------+---------------+-------------------------------+
321  *
322  *   typedef struct ACCESS_MASK {
323  *       WORD SpecificRights;
324  *       BYTE StandardRights;
325  *       BYTE AccessSystemAcl : 1;
326  *       BYTE Reserved : 3;
327  *       BYTE GenericAll : 1;
328  *       BYTE GenericExecute : 1;
329  *       BYTE GenericWrite : 1;
330  *       BYTE GenericRead : 1;
331  *   } ACCESS_MASK;
332  *
333  */
334 
335 #define	ACL_REVISION1			1
336 #define	ACL_REVISION2			2
337 #define	MIN_ACL_REVISION2		ACL_REVISION2
338 #define	ACL_REVISION3			3
339 #define	ACL_REVISION4			4
340 #define	MAX_ACL_REVISION		ACL_REVISION4
341 
342 /*
343  * Current ACE and ACL revision Levels
344  */
345 #define	ACE_REVISION			1
346 #define	ACL_REVISION			ACL_REVISION2
347 #define	ACL_REVISION_DS			ACL_REVISION4
348 
349 
350 #define	ACCESS_ALLOWED_ACE_TYPE		0
351 #define	ACCESS_DENIED_ACE_TYPE		1
352 #define	SYSTEM_AUDIT_ACE_TYPE		2
353 #define	SYSTEM_ALARM_ACE_TYPE		3
354 
355 /*
356  *  se_flags
357  * ----------
358  * Specifies a set of ACE type-specific control flags. This member can be a
359  * combination of the following values.
360  *
361  * CONTAINER_INHERIT_ACE: Child objects that are containers, such as
362  *		directories, inherit the ACE as an effective ACE. The inherited
363  *		ACE is inheritable unless the NO_PROPAGATE_INHERIT_ACE bit flag
364  *		is also set.
365  *
366  * INHERIT_ONLY_ACE: Indicates an inherit-only ACE which does not control
367  *		access to the object to which it is attached.
368  *		If this flag is not set,
369  *		the ACE is an effective ACE which controls access to the object
370  *		to which it is attached.
371  * 		Both effective and inherit-only ACEs can be inherited
372  *		depending on the state of the other inheritance flags.
373  *
374  * INHERITED_ACE: Windows 2000/XP: Indicates that the ACE was inherited.
375  *		The system sets this bit when it propagates an
376  *		inherited ACE to a child object.
377  *
378  * NO_PROPAGATE_INHERIT_ACE: If the ACE is inherited by a child object, the
379  *		system clears the OBJECT_INHERIT_ACE and CONTAINER_INHERIT_ACE
380  *		flags in the inherited ACE.
381  *		This prevents the ACE from being inherited by
382  *		subsequent generations of objects.
383  *
384  * OBJECT_INHERIT_ACE: Noncontainer child objects inherit the ACE as an
385  *		effective ACE.  For child objects that are containers,
386  *		the ACE is inherited as an inherit-only ACE unless the
387  *		NO_PROPAGATE_INHERIT_ACE bit flag is also set.
388  */
389 #define	OBJECT_INHERIT_ACE		0x01
390 #define	CONTAINER_INHERIT_ACE		0x02
391 #define	NO_PROPOGATE_INHERIT_ACE	0x04
392 #define	INHERIT_ONLY_ACE		0x08
393 #define	INHERITED_ACE			0x10
394 #define	INHERIT_MASK_ACE		0x1F
395 
396 
397 /*
398  * These flags are only used in system audit or alarm ACEs to
399  * indicate when an audit message should be generated, i.e.
400  * on successful access or on unsuccessful access.
401  */
402 #define	SUCCESSFUL_ACCESS_ACE_FLAG	0x40
403 #define	FAILED_ACCESS_ACE_FLAG		0x80
404 
405 /*
406  * se_bsize is the size, in bytes, of ACE as it appears on the wire.
407  * se_sln is used to sort the ACL when it's required.
408  */
409 typedef struct smb_acehdr {
410 	uint8_t		se_type;
411 	uint8_t		se_flags;
412 	uint16_t	se_bsize;
413 } smb_acehdr_t;
414 
415 typedef struct smb_ace {
416 	smb_acehdr_t	se_hdr;
417 	uint32_t	se_mask;
418 	list_node_t	se_sln;
419 	smb_sid_t	*se_sid;
420 } smb_ace_t;
421 
422 /*
423  * sl_bsize is the size of ACL in bytes as it appears on the wire.
424  */
425 typedef struct smb_acl {
426 	uint8_t		sl_revision;
427 	uint16_t	sl_bsize;
428 	uint16_t	sl_acecnt;
429 	smb_ace_t	*sl_aces;
430 	list_t		sl_sorted;
431 } smb_acl_t;
432 
433 /*
434  * ACE/ACL header size, in byte, as it appears on the wire
435  */
436 #define	SMB_ACE_HDRSIZE		4
437 #define	SMB_ACL_HDRSIZE		8
438 
439 /*
440  * Security Descriptor (SD)
441  *
442  * Security descriptors provide protection for objects, for example
443  * files and directories. It identifies the owner and primary group
444  * (SIDs) and contains an access control list. When a user tries to
445  * access an object their SID is compared to the permissions in the
446  * DACL to determine if access should be allowed or denied. Note that
447  * this is a simplification because there are other factors, such as
448  * default behavior and privileges to be taken into account (see also
449  * access tokens).
450  *
451  * The boolean flags have the following meanings when set:
452  *
453  * SE_OWNER_DEFAULTED indicates that the SID pointed to by the Owner
454  * field was provided by a defaulting mechanism rather than explicitly
455  * provided by the original provider of the security descriptor. This
456  * may affect the treatment of the SID with respect to inheritance of
457  * an owner.
458  *
459  * SE_GROUP_DEFAULTED indicates that the SID in the Group field was
460  * provided by a defaulting mechanism rather than explicitly provided
461  * by the original provider of the security descriptor.  This may
462  * affect the treatment of the SID with respect to inheritance of a
463  * primary group.
464  *
465  * SE_DACL_PRESENT indicates that the security descriptor contains a
466  * discretionary ACL. If this flag is set and the Dacl field of the
467  * SECURITY_DESCRIPTOR is null, then a null ACL is explicitly being
468  * specified.
469  *
470  * SE_DACL_DEFAULTED indicates that the ACL pointed to by the Dacl
471  * field was provided by a defaulting mechanism rather than explicitly
472  * provided by the original provider of the security descriptor. This
473  * may affect the treatment of the ACL with respect to inheritance of
474  * an ACL. This flag is ignored if the DaclPresent flag is not set.
475  *
476  * SE_SACL_PRESENT indicates that the security descriptor contains a
477  * system ACL pointed to by the Sacl field. If this flag is set and
478  * the Sacl field of the SECURITY_DESCRIPTOR is null, then an empty
479  * (but present) ACL is being specified.
480  *
481  * SE_SACL_DEFAULTED indicates that the ACL pointed to by the Sacl
482  * field was provided by a defaulting mechanism rather than explicitly
483  * provided by the original provider of the security descriptor. This
484  * may affect the treatment of the ACL with respect to inheritance of
485  * an ACL. This flag is ignored if the SaclPresent flag is not set.
486  *
487  * SE_DACL_PROTECTED Prevents ACEs set on the DACL of the parent container
488  * (and any objects above the parent container in the directory hierarchy)
489  * from being applied to the object's DACL.
490  *
491  * SE_SACL_PROTECTED Prevents ACEs set on the SACL of the parent container
492  * (and any objects above the parent container in the directory hierarchy)
493  * from being applied to the object's SACL.
494  *
495  * Note that the SE_DACL_PRESENT flag needs to be present to set
496  * SE_DACL_PROTECTED and SE_SACL_PRESENT needs to be present to set
497  * SE_SACL_PROTECTED.
498  *
499  * SE_SELF_RELATIVE indicates that the security descriptor is in self-
500  * relative form. In this form, all fields of the security descriptor
501  * are contiguous in memory and all pointer fields are expressed as
502  * offsets from the beginning of the security descriptor.
503  *
504  *    3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
505  *    1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
506  *   +---------------------------------------------------------------+
507  *   |            Control            |Reserved1 (SBZ)|   Revision    |
508  *   +---------------------------------------------------------------+
509  *   |                            Owner                              |
510  *   +---------------------------------------------------------------+
511  *   |                            Group                              |
512  *   +---------------------------------------------------------------+
513  *   |                            Sacl                               |
514  *   +---------------------------------------------------------------+
515  *   |                            Dacl                               |
516  *   +---------------------------------------------------------------+
517  *
518  */
519 
520 #define	SMB_OWNER_SECINFO	0x0001
521 #define	SMB_GROUP_SECINFO	0x0002
522 #define	SMB_DACL_SECINFO	0x0004
523 #define	SMB_SACL_SECINFO	0x0008
524 #define	SMB_ALL_SECINFO		0x000F
525 #define	SMB_ACL_SECINFO		(SMB_DACL_SECINFO | SMB_SACL_SECINFO)
526 
527 #define	SECURITY_DESCRIPTOR_REVISION	1
528 
529 
530 #define	SE_OWNER_DEFAULTED		0x0001
531 #define	SE_GROUP_DEFAULTED		0x0002
532 #define	SE_DACL_PRESENT			0x0004
533 #define	SE_DACL_DEFAULTED		0x0008
534 #define	SE_SACL_PRESENT			0x0010
535 #define	SE_SACL_DEFAULTED		0x0020
536 #define	SE_DACL_AUTO_INHERIT_REQ	0x0100
537 #define	SE_SACL_AUTO_INHERIT_REQ	0x0200
538 #define	SE_DACL_AUTO_INHERITED		0x0400
539 #define	SE_SACL_AUTO_INHERITED		0x0800
540 #define	SE_DACL_PROTECTED		0x1000
541 #define	SE_SACL_PROTECTED		0x2000
542 #define	SE_SELF_RELATIVE		0x8000
543 
544 #define	SE_DACL_INHERITANCE_MASK	0x1500
545 #define	SE_SACL_INHERITANCE_MASK	0x2A00
546 
547 /*
548  * Security descriptor structures:
549  *
550  * smb_sd_t     SD in SMB pointer form
551  * smb_fssd_t   SD in filesystem form
552  *
553  * Filesystems (e.g. ZFS/UFS) don't have something equivalent
554  * to SD. The items comprising a SMB SD are kept separately in
555  * filesystem. smb_fssd_t is introduced as a helper to provide
556  * the required abstraction for CIFS code.
557  */
558 
559 typedef struct smb_sd {
560 	uint8_t		sd_revision;
561 	uint16_t	sd_control;
562 	smb_sid_t 	*sd_owner;	/* SID file owner */
563 	smb_sid_t 	*sd_group;	/* SID group (for POSIX) */
564 	smb_acl_t 	*sd_sacl;	/* ACL System (audits) */
565 	smb_acl_t 	*sd_dacl;	/* ACL Discretionary (perm) */
566 } smb_sd_t;
567 
568 /*
569  * SD header size as it appears on the wire
570  */
571 #define	SMB_SD_HDRSIZE	20
572 
573 /*
574  * values for smb_fssd.sd_flags
575  */
576 #define	SMB_FSSD_FLAGS_DIR	0x01
577 
578 typedef struct smb_fssd {
579 	uint32_t	sd_secinfo;
580 	uint32_t	sd_flags;
581 	uid_t		sd_uid;
582 	gid_t		sd_gid;
583 	acl_t		*sd_zdacl;
584 	acl_t		*sd_zsacl;
585 } smb_fssd_t;
586 
587 void smb_sd_init(smb_sd_t *, uint8_t);
588 void smb_sd_term(smb_sd_t *);
589 uint32_t smb_sd_get_secinfo(smb_sd_t *);
590 uint32_t smb_sd_len(smb_sd_t *, uint32_t);
591 uint32_t smb_sd_tofs(smb_sd_t *, smb_fssd_t *);
592 
593 void smb_fssd_init(smb_fssd_t *, uint32_t, uint32_t);
594 void smb_fssd_term(smb_fssd_t *);
595 
596 void smb_acl_sort(smb_acl_t *);
597 void smb_acl_free(smb_acl_t *);
598 smb_acl_t *smb_acl_alloc(uint8_t, uint16_t, uint16_t);
599 smb_acl_t *smb_acl_from_zfs(acl_t *);
600 uint32_t smb_acl_to_zfs(smb_acl_t *, uint32_t, int, acl_t **);
601 uint16_t smb_acl_len(smb_acl_t *);
602 boolean_t smb_acl_isvalid(smb_acl_t *, int);
603 
604 void smb_fsacl_free(acl_t *);
605 acl_t *smb_fsacl_alloc(int, int);
606 
607 #ifdef __cplusplus
608 }
609 #endif
610 
611 #endif /* _SMBSRV_NTIFS_H */
612