1  /*
2   *   fs/cifs/smb2pdu.h
3   *
4   *   Copyright (c) International Business Machines  Corp., 2009, 2013
5   *                 Etersoft, 2012
6   *   Author(s): Steve French (sfrench@us.ibm.com)
7   *              Pavel Shilovsky (pshilovsky@samba.org) 2012
8   *
9   *   This library is free software; you can redistribute it and/or modify
10   *   it under the terms of the GNU Lesser General Public License as published
11   *   by the Free Software Foundation; either version 2.1 of the License, or
12   *   (at your option) any later version.
13   *
14   *   This library is distributed in the hope that it will be useful,
15   *   but WITHOUT ANY WARRANTY; without even the implied warranty of
16   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
17   *   the GNU Lesser General Public License for more details.
18   *
19   *   You should have received a copy of the GNU Lesser General Public License
20   *   along with this library; if not, write to the Free Software
21   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22   */
23  
24  #ifndef _SMB2PDU_H
25  #define _SMB2PDU_H
26  
27  #include <net/sock.h>
28  
29  /*
30   * Note that, due to trying to use names similar to the protocol specifications,
31   * there are many mixed case field names in the structures below.  Although
32   * this does not match typical Linux kernel style, it is necessary to be
33   * be able to match against the protocol specfication.
34   *
35   * SMB2 commands
36   * Some commands have minimal (wct=0,bcc=0), or uninteresting, responses
37   * (ie no useful data other than the SMB error code itself) and are marked such.
38   * Knowing this helps avoid response buffer allocations and copy in some cases.
39   */
40  
41  /* List of commands in host endian */
42  #define SMB2_NEGOTIATE_HE	0x0000
43  #define SMB2_SESSION_SETUP_HE	0x0001
44  #define SMB2_LOGOFF_HE		0x0002 /* trivial request/resp */
45  #define SMB2_TREE_CONNECT_HE	0x0003
46  #define SMB2_TREE_DISCONNECT_HE	0x0004 /* trivial req/resp */
47  #define SMB2_CREATE_HE		0x0005
48  #define SMB2_CLOSE_HE		0x0006
49  #define SMB2_FLUSH_HE		0x0007 /* trivial resp */
50  #define SMB2_READ_HE		0x0008
51  #define SMB2_WRITE_HE		0x0009
52  #define SMB2_LOCK_HE		0x000A
53  #define SMB2_IOCTL_HE		0x000B
54  #define SMB2_CANCEL_HE		0x000C
55  #define SMB2_ECHO_HE		0x000D
56  #define SMB2_QUERY_DIRECTORY_HE	0x000E
57  #define SMB2_CHANGE_NOTIFY_HE	0x000F
58  #define SMB2_QUERY_INFO_HE	0x0010
59  #define SMB2_SET_INFO_HE	0x0011
60  #define SMB2_OPLOCK_BREAK_HE	0x0012
61  
62  /* The same list in little endian */
63  #define SMB2_NEGOTIATE		cpu_to_le16(SMB2_NEGOTIATE_HE)
64  #define SMB2_SESSION_SETUP	cpu_to_le16(SMB2_SESSION_SETUP_HE)
65  #define SMB2_LOGOFF		cpu_to_le16(SMB2_LOGOFF_HE)
66  #define SMB2_TREE_CONNECT	cpu_to_le16(SMB2_TREE_CONNECT_HE)
67  #define SMB2_TREE_DISCONNECT	cpu_to_le16(SMB2_TREE_DISCONNECT_HE)
68  #define SMB2_CREATE		cpu_to_le16(SMB2_CREATE_HE)
69  #define SMB2_CLOSE		cpu_to_le16(SMB2_CLOSE_HE)
70  #define SMB2_FLUSH		cpu_to_le16(SMB2_FLUSH_HE)
71  #define SMB2_READ		cpu_to_le16(SMB2_READ_HE)
72  #define SMB2_WRITE		cpu_to_le16(SMB2_WRITE_HE)
73  #define SMB2_LOCK		cpu_to_le16(SMB2_LOCK_HE)
74  #define SMB2_IOCTL		cpu_to_le16(SMB2_IOCTL_HE)
75  #define SMB2_CANCEL		cpu_to_le16(SMB2_CANCEL_HE)
76  #define SMB2_ECHO		cpu_to_le16(SMB2_ECHO_HE)
77  #define SMB2_QUERY_DIRECTORY	cpu_to_le16(SMB2_QUERY_DIRECTORY_HE)
78  #define SMB2_CHANGE_NOTIFY	cpu_to_le16(SMB2_CHANGE_NOTIFY_HE)
79  #define SMB2_QUERY_INFO		cpu_to_le16(SMB2_QUERY_INFO_HE)
80  #define SMB2_SET_INFO		cpu_to_le16(SMB2_SET_INFO_HE)
81  #define SMB2_OPLOCK_BREAK	cpu_to_le16(SMB2_OPLOCK_BREAK_HE)
82  
83  #define SMB2_INTERNAL_CMD	cpu_to_le16(0xFFFF)
84  
85  #define NUMBER_OF_SMB2_COMMANDS	0x0013
86  
87  /* 52 transform hdr + 64 hdr + 88 create rsp */
88  #define SMB2_TRANSFORM_HEADER_SIZE 52
89  #define MAX_SMB2_HDR_SIZE 204
90  
91  #define SMB2_PROTO_NUMBER cpu_to_le32(0x424d53fe)
92  #define SMB2_TRANSFORM_PROTO_NUM cpu_to_le32(0x424d53fd)
93  
94  /*
95   * SMB2 Header Definition
96   *
97   * "MBZ" :  Must be Zero
98   * "BB"  :  BugBug, Something to check/review/analyze later
99   * "PDU" :  "Protocol Data Unit" (ie a network "frame")
100   *
101   */
102  
103  #define SMB2_HEADER_STRUCTURE_SIZE cpu_to_le16(64)
104  
105  struct smb2_sync_hdr {
106  	__le32 ProtocolId;	/* 0xFE 'S' 'M' 'B' */
107  	__le16 StructureSize;	/* 64 */
108  	__le16 CreditCharge;	/* MBZ */
109  	__le32 Status;		/* Error from server */
110  	__le16 Command;
111  	__le16 CreditRequest;  /* CreditResponse */
112  	__le32 Flags;
113  	__le32 NextCommand;
114  	__le64 MessageId;
115  	__le32 ProcessId;
116  	__u32  TreeId;		/* opaque - so do not make little endian */
117  	__u64  SessionId;	/* opaque - so do not make little endian */
118  	__u8   Signature[16];
119  } __packed;
120  
121  struct smb2_sync_pdu {
122  	struct smb2_sync_hdr sync_hdr;
123  	__le16 StructureSize2; /* size of wct area (varies, request specific) */
124  } __packed;
125  
126  #define SMB3_AES128CCM_NONCE 11
127  #define SMB3_AES128GCM_NONCE 12
128  
129  struct smb2_transform_hdr {
130  	__le32 ProtocolId;	/* 0xFD 'S' 'M' 'B' */
131  	__u8   Signature[16];
132  	__u8   Nonce[16];
133  	__le32 OriginalMessageSize;
134  	__u16  Reserved1;
135  	__le16 Flags; /* EncryptionAlgorithm */
136  	__u64  SessionId;
137  } __packed;
138  
139  /*
140   *	SMB2 flag definitions
141   */
142  #define SMB2_FLAGS_SERVER_TO_REDIR	cpu_to_le32(0x00000001)
143  #define SMB2_FLAGS_ASYNC_COMMAND	cpu_to_le32(0x00000002)
144  #define SMB2_FLAGS_RELATED_OPERATIONS	cpu_to_le32(0x00000004)
145  #define SMB2_FLAGS_SIGNED		cpu_to_le32(0x00000008)
146  #define SMB2_FLAGS_PRIORITY_MASK	cpu_to_le32(0x00000070) /* SMB3.1.1 */
147  #define SMB2_FLAGS_DFS_OPERATIONS	cpu_to_le32(0x10000000)
148  #define SMB2_FLAGS_REPLAY_OPERATION	cpu_to_le32(0x20000000) /* SMB3 & up */
149  
150  /*
151   *	Definitions for SMB2 Protocol Data Units (network frames)
152   *
153   *  See MS-SMB2.PDF specification for protocol details.
154   *  The Naming convention is the lower case version of the SMB2
155   *  command code name for the struct. Note that structures must be packed.
156   *
157   */
158  
159  #define COMPOUND_FID 0xFFFFFFFFFFFFFFFFULL
160  
161  #define SMB2_ERROR_STRUCTURE_SIZE2 cpu_to_le16(9)
162  
163  struct smb2_err_rsp {
164  	struct smb2_sync_hdr sync_hdr;
165  	__le16 StructureSize;
166  	__le16 Reserved; /* MBZ */
167  	__le32 ByteCount;  /* even if zero, at least one byte follows */
168  	__u8   ErrorData[1];  /* variable length */
169  } __packed;
170  
171  #define SYMLINK_ERROR_TAG 0x4c4d5953
172  
173  struct smb2_symlink_err_rsp {
174  	__le32 SymLinkLength;
175  	__le32 SymLinkErrorTag;
176  	__le32 ReparseTag;
177  	__le16 ReparseDataLength;
178  	__le16 UnparsedPathLength;
179  	__le16 SubstituteNameOffset;
180  	__le16 SubstituteNameLength;
181  	__le16 PrintNameOffset;
182  	__le16 PrintNameLength;
183  	__le32 Flags;
184  	__u8  PathBuffer[0];
185  } __packed;
186  
187  /* SMB 3.1.1 and later dialects. See MS-SMB2 section 2.2.2.1 */
188  struct smb2_error_context_rsp {
189  	__le32 ErrorDataLength;
190  	__le32 ErrorId;
191  	__u8  ErrorContextData; /* ErrorDataLength long array */
192  } __packed;
193  
194  /* Defines for Type field below (see MS-SMB2 2.2.2.2.2.1) */
195  #define MOVE_DST_IPADDR_V4	cpu_to_le32(0x00000001)
196  #define MOVE_DST_IPADDR_V6	cpu_to_le32(0x00000002)
197  
198  struct move_dst_ipaddr {
199  	__le32 Type;
200  	__u32  Reserved;
201  	__u8   address[16]; /* IPv4 followed by 12 bytes rsvd or IPv6 address */
202  } __packed;
203  
204  struct share_redirect_error_context_rsp {
205  	__le32 StructureSize;
206  	__le32 NotificationType;
207  	__le32 ResourceNameOffset;
208  	__le32 ResourceNameLength;
209  	__le16 Flags;
210  	__le16 TargetType;
211  	__le32 IPAddrCount;
212  	struct move_dst_ipaddr IpAddrMoveList[0];
213  	/* __u8 ResourceName[] */ /* Name of share as counted Unicode string */
214  } __packed;
215  
216  #define SMB2_CLIENT_GUID_SIZE 16
217  
218  struct smb2_negotiate_req {
219  	struct smb2_sync_hdr sync_hdr;
220  	__le16 StructureSize; /* Must be 36 */
221  	__le16 DialectCount;
222  	__le16 SecurityMode;
223  	__le16 Reserved;	/* MBZ */
224  	__le32 Capabilities;
225  	__u8   ClientGUID[SMB2_CLIENT_GUID_SIZE];
226  	/* In SMB3.02 and earlier next three were MBZ le64 ClientStartTime */
227  	__le32 NegotiateContextOffset; /* SMB3.1.1 only. MBZ earlier */
228  	__le16 NegotiateContextCount;  /* SMB3.1.1 only. MBZ earlier */
229  	__le16 Reserved2;
230  	__le16 Dialects[1]; /* One dialect (vers=) at a time for now */
231  } __packed;
232  
233  /* Dialects */
234  #define SMB10_PROT_ID 0x0000 /* local only, not sent on wire w/CIFS negprot */
235  #define SMB20_PROT_ID 0x0202
236  #define SMB21_PROT_ID 0x0210
237  #define SMB30_PROT_ID 0x0300
238  #define SMB302_PROT_ID 0x0302
239  #define SMB311_PROT_ID 0x0311
240  #define BAD_PROT_ID   0xFFFF
241  
242  /* SecurityMode flags */
243  #define	SMB2_NEGOTIATE_SIGNING_ENABLED	0x0001
244  #define SMB2_NEGOTIATE_SIGNING_REQUIRED	0x0002
245  #define SMB2_SEC_MODE_FLAGS_ALL		0x0003
246  
247  /* Capabilities flags */
248  #define SMB2_GLOBAL_CAP_DFS		0x00000001
249  #define SMB2_GLOBAL_CAP_LEASING		0x00000002 /* Resp only New to SMB2.1 */
250  #define SMB2_GLOBAL_CAP_LARGE_MTU	0X00000004 /* Resp only New to SMB2.1 */
251  #define SMB2_GLOBAL_CAP_MULTI_CHANNEL	0x00000008 /* New to SMB3 */
252  #define SMB2_GLOBAL_CAP_PERSISTENT_HANDLES 0x00000010 /* New to SMB3 */
253  #define SMB2_GLOBAL_CAP_DIRECTORY_LEASING  0x00000020 /* New to SMB3 */
254  #define SMB2_GLOBAL_CAP_ENCRYPTION	0x00000040 /* New to SMB3 */
255  /* Internal types */
256  #define SMB2_NT_FIND			0x00100000
257  #define SMB2_LARGE_FILES		0x00200000
258  
259  
260  /* Negotiate Contexts - ContextTypes. See MS-SMB2 section 2.2.3.1 for details */
261  #define SMB2_PREAUTH_INTEGRITY_CAPABILITIES	cpu_to_le16(1)
262  #define SMB2_ENCRYPTION_CAPABILITIES		cpu_to_le16(2)
263  #define SMB2_COMPRESSION_CAPABILITIES		cpu_to_le16(3)
264  #define SMB2_NETNAME_NEGOTIATE_CONTEXT_ID	cpu_to_le16(5)
265  #define SMB2_POSIX_EXTENSIONS_AVAILABLE		cpu_to_le16(0x100)
266  
267  struct smb2_neg_context {
268  	__le16	ContextType;
269  	__le16	DataLength;
270  	__le32	Reserved;
271  	/* Followed by array of data */
272  } __packed;
273  
274  #define SMB311_SALT_SIZE			32
275  /* Hash Algorithm Types */
276  #define SMB2_PREAUTH_INTEGRITY_SHA512	cpu_to_le16(0x0001)
277  #define SMB2_PREAUTH_HASH_SIZE 64
278  
279  #define MIN_PREAUTH_CTXT_DATA_LEN	(SMB311_SALT_SIZE + 6)
280  struct smb2_preauth_neg_context {
281  	__le16	ContextType; /* 1 */
282  	__le16	DataLength;
283  	__le32	Reserved;
284  	__le16	HashAlgorithmCount; /* 1 */
285  	__le16	SaltLength;
286  	__le16	HashAlgorithms; /* HashAlgorithms[0] since only one defined */
287  	__u8	Salt[SMB311_SALT_SIZE];
288  } __packed;
289  
290  /* Encryption Algorithms Ciphers */
291  #define SMB2_ENCRYPTION_AES128_CCM	cpu_to_le16(0x0001)
292  #define SMB2_ENCRYPTION_AES128_GCM	cpu_to_le16(0x0002)
293  
294  /* Min encrypt context data is one cipher so 2 bytes + 2 byte count field */
295  #define MIN_ENCRYPT_CTXT_DATA_LEN	4
296  struct smb2_encryption_neg_context {
297  	__le16	ContextType; /* 2 */
298  	__le16	DataLength;
299  	__le32	Reserved;
300  	__le16	CipherCount; /* AES-128-GCM and AES-128-CCM */
301  	__le16	Ciphers[2];
302  } __packed;
303  
304  /* See MS-SMB2 2.2.3.1.3 */
305  #define SMB3_COMPRESS_NONE	cpu_to_le16(0x0000)
306  #define SMB3_COMPRESS_LZNT1	cpu_to_le16(0x0001)
307  #define SMB3_COMPRESS_LZ77	cpu_to_le16(0x0002)
308  #define SMB3_COMPRESS_LZ77_HUFF	cpu_to_le16(0x0003)
309  
310  struct smb2_compression_capabilities_context {
311  	__le16	ContextType; /* 3 */
312  	__le16  DataLength;
313  	__u32	Reserved;
314  	__le16	CompressionAlgorithmCount;
315  	__u16	Padding;
316  	__u32	Reserved1;
317  	__le16	CompressionAlgorithms[3];
318  } __packed;
319  
320  /*
321   * For smb2_netname_negotiate_context_id See MS-SMB2 2.2.3.1.4.
322   * Its struct simply contains NetName, an array of Unicode characters
323   */
324  struct smb2_netname_neg_context {
325  	__le16	ContextType; /* 0x100 */
326  	__le16	DataLength;
327  	__le32	Reserved;
328  	__le16	NetName[0]; /* hostname of target converted to UCS-2 */
329  } __packed;
330  
331  #define POSIX_CTXT_DATA_LEN	16
332  struct smb2_posix_neg_context {
333  	__le16	ContextType; /* 0x100 */
334  	__le16	DataLength;
335  	__le32	Reserved;
336  	__u8	Name[16]; /* POSIX ctxt GUID 93AD25509CB411E7B42383DE968BCD7C */
337  } __packed;
338  
339  struct smb2_negotiate_rsp {
340  	struct smb2_sync_hdr sync_hdr;
341  	__le16 StructureSize;	/* Must be 65 */
342  	__le16 SecurityMode;
343  	__le16 DialectRevision;
344  	__le16 NegotiateContextCount;	/* Prior to SMB3.1.1 was Reserved & MBZ */
345  	__u8   ServerGUID[16];
346  	__le32 Capabilities;
347  	__le32 MaxTransactSize;
348  	__le32 MaxReadSize;
349  	__le32 MaxWriteSize;
350  	__le64 SystemTime;	/* MBZ */
351  	__le64 ServerStartTime;
352  	__le16 SecurityBufferOffset;
353  	__le16 SecurityBufferLength;
354  	__le32 NegotiateContextOffset;	/* Pre:SMB3.1.1 was reserved/ignored */
355  	__u8   Buffer[1];	/* variable length GSS security buffer */
356  } __packed;
357  
358  /* Flags */
359  #define SMB2_SESSION_REQ_FLAG_BINDING		0x01
360  #define SMB2_SESSION_REQ_FLAG_ENCRYPT_DATA	0x04
361  
362  struct smb2_sess_setup_req {
363  	struct smb2_sync_hdr sync_hdr;
364  	__le16 StructureSize; /* Must be 25 */
365  	__u8   Flags;
366  	__u8   SecurityMode;
367  	__le32 Capabilities;
368  	__le32 Channel;
369  	__le16 SecurityBufferOffset;
370  	__le16 SecurityBufferLength;
371  	__u64 PreviousSessionId;
372  	__u8   Buffer[1];	/* variable length GSS security buffer */
373  } __packed;
374  
375  /* Currently defined SessionFlags */
376  #define SMB2_SESSION_FLAG_IS_GUEST	0x0001
377  #define SMB2_SESSION_FLAG_IS_NULL	0x0002
378  #define SMB2_SESSION_FLAG_ENCRYPT_DATA	0x0004
379  struct smb2_sess_setup_rsp {
380  	struct smb2_sync_hdr sync_hdr;
381  	__le16 StructureSize; /* Must be 9 */
382  	__le16 SessionFlags;
383  	__le16 SecurityBufferOffset;
384  	__le16 SecurityBufferLength;
385  	__u8   Buffer[1];	/* variable length GSS security buffer */
386  } __packed;
387  
388  struct smb2_logoff_req {
389  	struct smb2_sync_hdr sync_hdr;
390  	__le16 StructureSize;	/* Must be 4 */
391  	__le16 Reserved;
392  } __packed;
393  
394  struct smb2_logoff_rsp {
395  	struct smb2_sync_hdr sync_hdr;
396  	__le16 StructureSize;	/* Must be 4 */
397  	__le16 Reserved;
398  } __packed;
399  
400  /* Flags/Reserved for SMB3.1.1 */
401  #define SMB2_TREE_CONNECT_FLAG_CLUSTER_RECONNECT cpu_to_le16(0x0001)
402  #define SMB2_TREE_CONNECT_FLAG_REDIRECT_TO_OWNER cpu_to_le16(0x0002)
403  #define SMB2_TREE_CONNECT_FLAG_EXTENSION_PRESENT cpu_to_le16(0x0004)
404  
405  struct smb2_tree_connect_req {
406  	struct smb2_sync_hdr sync_hdr;
407  	__le16 StructureSize;	/* Must be 9 */
408  	__le16 Reserved; /* Flags in SMB3.1.1 */
409  	__le16 PathOffset;
410  	__le16 PathLength;
411  	__u8   Buffer[1];	/* variable length */
412  } __packed;
413  
414  /* See MS-SMB2 section 2.2.9.2 */
415  /* Context Types */
416  #define SMB2_RESERVED_TREE_CONNECT_CONTEXT_ID 0x0000
417  #define SMB2_REMOTED_IDENTITY_TREE_CONNECT_CONTEXT_ID cpu_to_le16(0x0001)
418  
419  struct tree_connect_contexts {
420  	__le16 ContextType;
421  	__le16 DataLength;
422  	__le32 Reserved;
423  	__u8   Data[0];
424  } __packed;
425  
426  /* Remoted identity tree connect context structures - see MS-SMB2 2.2.9.2.1 */
427  struct smb3_blob_data {
428  	__le16 BlobSize;
429  	__u8   BlobData[0];
430  } __packed;
431  
432  /* Valid values for Attr */
433  #define SE_GROUP_MANDATORY		0x00000001
434  #define SE_GROUP_ENABLED_BY_DEFAULT	0x00000002
435  #define SE_GROUP_ENABLED		0x00000004
436  #define SE_GROUP_OWNER			0x00000008
437  #define SE_GROUP_USE_FOR_DENY_ONLY	0x00000010
438  #define SE_GROUP_INTEGRITY		0x00000020
439  #define SE_GROUP_INTEGRITY_ENABLED	0x00000040
440  #define SE_GROUP_RESOURCE		0x20000000
441  #define SE_GROUP_LOGON_ID		0xC0000000
442  
443  /* struct sid_attr_data is SidData array in BlobData format then le32 Attr */
444  
445  struct sid_array_data {
446  	__le16 SidAttrCount;
447  	/* SidAttrList - array of sid_attr_data structs */
448  } __packed;
449  
450  struct luid_attr_data {
451  
452  } __packed;
453  
454  /*
455   * struct privilege_data is the same as BLOB_DATA - see MS-SMB2 2.2.9.2.1.5
456   * but with size of LUID_ATTR_DATA struct and BlobData set to LUID_ATTR DATA
457   */
458  
459  struct privilege_array_data {
460  	__le16 PrivilegeCount;
461  	/* array of privilege_data structs */
462  } __packed;
463  
464  struct remoted_identity_tcon_context {
465  	__le16 TicketType; /* must be 0x0001 */
466  	__le16 TicketSize; /* total size of this struct */
467  	__le16 User; /* offset to SID_ATTR_DATA struct with user info */
468  	__le16 UserName; /* offset to null terminated Unicode username string */
469  	__le16 Domain; /* offset to null terminated Unicode domain name */
470  	__le16 Groups; /* offset to SID_ARRAY_DATA struct with group info */
471  	__le16 RestrictedGroups; /* similar to above */
472  	__le16 Privileges; /* offset to PRIVILEGE_ARRAY_DATA struct */
473  	__le16 PrimaryGroup; /* offset to SID_ARRAY_DATA struct */
474  	__le16 Owner; /* offset to BLOB_DATA struct */
475  	__le16 DefaultDacl; /* offset to BLOB_DATA struct */
476  	__le16 DeviceGroups; /* offset to SID_ARRAY_DATA struct */
477  	__le16 UserClaims; /* offset to BLOB_DATA struct */
478  	__le16 DeviceClaims; /* offset to BLOB_DATA struct */
479  	__u8   TicketInfo[0]; /* variable length buf - remoted identity data */
480  } __packed;
481  
482  struct smb2_tree_connect_req_extension {
483  	__le32 TreeConnectContextOffset;
484  	__le16 TreeConnectContextCount;
485  	__u8  Reserved[10];
486  	__u8  PathName[0]; /* variable sized array */
487  	/* followed by array of TreeConnectContexts */
488  } __packed;
489  
490  struct smb2_tree_connect_rsp {
491  	struct smb2_sync_hdr sync_hdr;
492  	__le16 StructureSize;	/* Must be 16 */
493  	__u8   ShareType;  /* see below */
494  	__u8   Reserved;
495  	__le32 ShareFlags; /* see below */
496  	__le32 Capabilities; /* see below */
497  	__le32 MaximalAccess;
498  } __packed;
499  
500  /* Possible ShareType values */
501  #define SMB2_SHARE_TYPE_DISK	0x01
502  #define SMB2_SHARE_TYPE_PIPE	0x02
503  #define	SMB2_SHARE_TYPE_PRINT	0x03
504  
505  /*
506   * Possible ShareFlags - exactly one and only one of the first 4 caching flags
507   * must be set (any of the remaining, SHI1005, flags may be set individually
508   * or in combination.
509   */
510  #define SMB2_SHAREFLAG_MANUAL_CACHING			0x00000000
511  #define SMB2_SHAREFLAG_AUTO_CACHING			0x00000010
512  #define SMB2_SHAREFLAG_VDO_CACHING			0x00000020
513  #define SMB2_SHAREFLAG_NO_CACHING			0x00000030
514  #define SHI1005_FLAGS_DFS				0x00000001
515  #define SHI1005_FLAGS_DFS_ROOT				0x00000002
516  #define SHI1005_FLAGS_RESTRICT_EXCLUSIVE_OPENS		0x00000100
517  #define SHI1005_FLAGS_FORCE_SHARED_DELETE		0x00000200
518  #define SHI1005_FLAGS_ALLOW_NAMESPACE_CACHING		0x00000400
519  #define SHI1005_FLAGS_ACCESS_BASED_DIRECTORY_ENUM	0x00000800
520  #define SHI1005_FLAGS_FORCE_LEVELII_OPLOCK		0x00001000
521  #define SHI1005_FLAGS_ENABLE_HASH_V1			0x00002000
522  #define SHI1005_FLAGS_ENABLE_HASH_V2			0x00004000
523  #define SHI1005_FLAGS_ENCRYPT_DATA			0x00008000
524  #define SMB2_SHAREFLAG_IDENTITY_REMOTING		0x00040000 /* 3.1.1 */
525  #define SHI1005_FLAGS_ALL				0x0004FF33
526  
527  /* Possible share capabilities */
528  #define SMB2_SHARE_CAP_DFS	cpu_to_le32(0x00000008) /* all dialects */
529  #define SMB2_SHARE_CAP_CONTINUOUS_AVAILABILITY cpu_to_le32(0x00000010) /* 3.0 */
530  #define SMB2_SHARE_CAP_SCALEOUT	cpu_to_le32(0x00000020) /* 3.0 */
531  #define SMB2_SHARE_CAP_CLUSTER	cpu_to_le32(0x00000040) /* 3.0 */
532  #define SMB2_SHARE_CAP_ASYMMETRIC cpu_to_le32(0x00000080) /* 3.02 */
533  #define SMB2_SHARE_CAP_REDIRECT_TO_OWNER cpu_to_le32(0x00000100) /* 3.1.1 */
534  
535  struct smb2_tree_disconnect_req {
536  	struct smb2_sync_hdr sync_hdr;
537  	__le16 StructureSize;	/* Must be 4 */
538  	__le16 Reserved;
539  } __packed;
540  
541  struct smb2_tree_disconnect_rsp {
542  	struct smb2_sync_hdr sync_hdr;
543  	__le16 StructureSize;	/* Must be 4 */
544  	__le16 Reserved;
545  } __packed;
546  
547  /* File Attrubutes */
548  #define FILE_ATTRIBUTE_READONLY			0x00000001
549  #define FILE_ATTRIBUTE_HIDDEN			0x00000002
550  #define FILE_ATTRIBUTE_SYSTEM			0x00000004
551  #define FILE_ATTRIBUTE_DIRECTORY		0x00000010
552  #define FILE_ATTRIBUTE_ARCHIVE			0x00000020
553  #define FILE_ATTRIBUTE_NORMAL			0x00000080
554  #define FILE_ATTRIBUTE_TEMPORARY		0x00000100
555  #define FILE_ATTRIBUTE_SPARSE_FILE		0x00000200
556  #define FILE_ATTRIBUTE_REPARSE_POINT		0x00000400
557  #define FILE_ATTRIBUTE_COMPRESSED		0x00000800
558  #define FILE_ATTRIBUTE_OFFLINE			0x00001000
559  #define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED	0x00002000
560  #define FILE_ATTRIBUTE_ENCRYPTED		0x00004000
561  #define FILE_ATTRIBUTE_INTEGRITY_STREAM		0x00008000
562  #define FILE_ATTRIBUTE_NO_SCRUB_DATA		0x00020000
563  
564  /* Oplock levels */
565  #define SMB2_OPLOCK_LEVEL_NONE		0x00
566  #define SMB2_OPLOCK_LEVEL_II		0x01
567  #define SMB2_OPLOCK_LEVEL_EXCLUSIVE	0x08
568  #define SMB2_OPLOCK_LEVEL_BATCH		0x09
569  #define SMB2_OPLOCK_LEVEL_LEASE		0xFF
570  /* Non-spec internal type */
571  #define SMB2_OPLOCK_LEVEL_NOCHANGE	0x99
572  
573  /* Desired Access Flags */
574  #define FILE_READ_DATA_LE		cpu_to_le32(0x00000001)
575  #define FILE_WRITE_DATA_LE		cpu_to_le32(0x00000002)
576  #define FILE_APPEND_DATA_LE		cpu_to_le32(0x00000004)
577  #define FILE_READ_EA_LE			cpu_to_le32(0x00000008)
578  #define FILE_WRITE_EA_LE		cpu_to_le32(0x00000010)
579  #define FILE_EXECUTE_LE			cpu_to_le32(0x00000020)
580  #define FILE_READ_ATTRIBUTES_LE		cpu_to_le32(0x00000080)
581  #define FILE_WRITE_ATTRIBUTES_LE	cpu_to_le32(0x00000100)
582  #define FILE_DELETE_LE			cpu_to_le32(0x00010000)
583  #define FILE_READ_CONTROL_LE		cpu_to_le32(0x00020000)
584  #define FILE_WRITE_DAC_LE		cpu_to_le32(0x00040000)
585  #define FILE_WRITE_OWNER_LE		cpu_to_le32(0x00080000)
586  #define FILE_SYNCHRONIZE_LE		cpu_to_le32(0x00100000)
587  #define FILE_ACCESS_SYSTEM_SECURITY_LE	cpu_to_le32(0x01000000)
588  #define FILE_MAXIMAL_ACCESS_LE		cpu_to_le32(0x02000000)
589  #define FILE_GENERIC_ALL_LE		cpu_to_le32(0x10000000)
590  #define FILE_GENERIC_EXECUTE_LE		cpu_to_le32(0x20000000)
591  #define FILE_GENERIC_WRITE_LE		cpu_to_le32(0x40000000)
592  #define FILE_GENERIC_READ_LE		cpu_to_le32(0x80000000)
593  
594  /* ShareAccess Flags */
595  #define FILE_SHARE_READ_LE		cpu_to_le32(0x00000001)
596  #define FILE_SHARE_WRITE_LE		cpu_to_le32(0x00000002)
597  #define FILE_SHARE_DELETE_LE		cpu_to_le32(0x00000004)
598  #define FILE_SHARE_ALL_LE		cpu_to_le32(0x00000007)
599  
600  /* CreateDisposition Flags */
601  #define FILE_SUPERSEDE_LE		cpu_to_le32(0x00000000)
602  #define FILE_OPEN_LE			cpu_to_le32(0x00000001)
603  #define FILE_CREATE_LE			cpu_to_le32(0x00000002)
604  #define	FILE_OPEN_IF_LE			cpu_to_le32(0x00000003)
605  #define FILE_OVERWRITE_LE		cpu_to_le32(0x00000004)
606  #define FILE_OVERWRITE_IF_LE		cpu_to_le32(0x00000005)
607  
608  /* CreateOptions Flags */
609  #define FILE_DIRECTORY_FILE_LE		cpu_to_le32(0x00000001)
610  /* same as #define CREATE_NOT_FILE_LE	cpu_to_le32(0x00000001) */
611  #define FILE_WRITE_THROUGH_LE		cpu_to_le32(0x00000002)
612  #define FILE_SEQUENTIAL_ONLY_LE		cpu_to_le32(0x00000004)
613  #define FILE_NO_INTERMEDIATE_BUFFERRING_LE cpu_to_le32(0x00000008)
614  #define FILE_SYNCHRONOUS_IO_ALERT_LE	cpu_to_le32(0x00000010)
615  #define FILE_SYNCHRONOUS_IO_NON_ALERT_LE	cpu_to_le32(0x00000020)
616  #define FILE_NON_DIRECTORY_FILE_LE	cpu_to_le32(0x00000040)
617  #define FILE_COMPLETE_IF_OPLOCKED_LE	cpu_to_le32(0x00000100)
618  #define FILE_NO_EA_KNOWLEDGE_LE		cpu_to_le32(0x00000200)
619  #define FILE_RANDOM_ACCESS_LE		cpu_to_le32(0x00000800)
620  #define FILE_DELETE_ON_CLOSE_LE		cpu_to_le32(0x00001000)
621  #define FILE_OPEN_BY_FILE_ID_LE		cpu_to_le32(0x00002000)
622  #define FILE_OPEN_FOR_BACKUP_INTENT_LE	cpu_to_le32(0x00004000)
623  #define FILE_NO_COMPRESSION_LE		cpu_to_le32(0x00008000)
624  #define FILE_RESERVE_OPFILTER_LE	cpu_to_le32(0x00100000)
625  #define FILE_OPEN_REPARSE_POINT_LE	cpu_to_le32(0x00200000)
626  #define FILE_OPEN_NO_RECALL_LE		cpu_to_le32(0x00400000)
627  #define FILE_OPEN_FOR_FREE_SPACE_QUERY_LE cpu_to_le32(0x00800000)
628  
629  #define FILE_READ_RIGHTS_LE (FILE_READ_DATA_LE | FILE_READ_EA_LE \
630  			| FILE_READ_ATTRIBUTES_LE)
631  #define FILE_WRITE_RIGHTS_LE (FILE_WRITE_DATA_LE | FILE_APPEND_DATA_LE \
632  			| FILE_WRITE_EA_LE | FILE_WRITE_ATTRIBUTES_LE)
633  #define FILE_EXEC_RIGHTS_LE (FILE_EXECUTE_LE)
634  
635  /* Impersonation Levels */
636  #define IL_ANONYMOUS		cpu_to_le32(0x00000000)
637  #define IL_IDENTIFICATION	cpu_to_le32(0x00000001)
638  #define IL_IMPERSONATION	cpu_to_le32(0x00000002)
639  #define IL_DELEGATE		cpu_to_le32(0x00000003)
640  
641  /* Create Context Values */
642  #define SMB2_CREATE_EA_BUFFER			"ExtA" /* extended attributes */
643  #define SMB2_CREATE_SD_BUFFER			"SecD" /* security descriptor */
644  #define SMB2_CREATE_DURABLE_HANDLE_REQUEST	"DHnQ"
645  #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT	"DHnC"
646  #define SMB2_CREATE_ALLOCATION_SIZE		"AISi"
647  #define SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST "MxAc"
648  #define SMB2_CREATE_TIMEWARP_REQUEST		"TWrp"
649  #define SMB2_CREATE_QUERY_ON_DISK_ID		"QFid"
650  #define SMB2_CREATE_REQUEST_LEASE		"RqLs"
651  #define SMB2_CREATE_DURABLE_HANDLE_REQUEST_V2	"DH2Q"
652  #define SMB2_CREATE_DURABLE_HANDLE_RECONNECT_V2	"DH2C"
653  #define SMB2_CREATE_APP_INSTANCE_ID	0x45BCA66AEFA7F74A9008FA462E144D74
654  #define SMB2_CREATE_APP_INSTANCE_VERSION 0xB982D0B73B56074FA07B524A8116A010
655  #define SVHDX_OPEN_DEVICE_CONTEX	0x9CCBCF9E04C1E643980E158DA1F6EC83
656  #define SMB2_CREATE_TAG_POSIX		0x93AD25509CB411E7B42383DE968BCD7C
657  
658  /* Flag (SMB3 open response) values */
659  #define SMB2_CREATE_FLAG_REPARSEPOINT 0x01
660  
661  /*
662   * Maximum number of iovs we need for an open/create request.
663   * [0] : struct smb2_create_req
664   * [1] : path
665   * [2] : lease context
666   * [3] : durable context
667   * [4] : posix context
668   * [5] : time warp context
669   * [6] : query id context
670   * [7] : compound padding
671   */
672  #define SMB2_CREATE_IOV_SIZE 8
673  
674  struct smb2_create_req {
675  	struct smb2_sync_hdr sync_hdr;
676  	__le16 StructureSize;	/* Must be 57 */
677  	__u8   SecurityFlags;
678  	__u8   RequestedOplockLevel;
679  	__le32 ImpersonationLevel;
680  	__le64 SmbCreateFlags;
681  	__le64 Reserved;
682  	__le32 DesiredAccess;
683  	__le32 FileAttributes;
684  	__le32 ShareAccess;
685  	__le32 CreateDisposition;
686  	__le32 CreateOptions;
687  	__le16 NameOffset;
688  	__le16 NameLength;
689  	__le32 CreateContextsOffset;
690  	__le32 CreateContextsLength;
691  	__u8   Buffer[0];
692  } __packed;
693  
694  /*
695   * Maximum size of a SMB2_CREATE response is 64 (smb2 header) +
696   * 88 (fixed part of create response) + 520 (path) + 208 (contexts) +
697   * 2 bytes of padding.
698   */
699  #define MAX_SMB2_CREATE_RESPONSE_SIZE 880
700  
701  struct smb2_create_rsp {
702  	struct smb2_sync_hdr sync_hdr;
703  	__le16 StructureSize;	/* Must be 89 */
704  	__u8   OplockLevel;
705  	__u8   Flag;  /* 0x01 if reparse point */
706  	__le32 CreateAction;
707  	__le64 CreationTime;
708  	__le64 LastAccessTime;
709  	__le64 LastWriteTime;
710  	__le64 ChangeTime;
711  	__le64 AllocationSize;
712  	__le64 EndofFile;
713  	__le32 FileAttributes;
714  	__le32 Reserved2;
715  	__u64  PersistentFileId; /* opaque endianness */
716  	__u64  VolatileFileId; /* opaque endianness */
717  	__le32 CreateContextsOffset;
718  	__le32 CreateContextsLength;
719  	__u8   Buffer[1];
720  } __packed;
721  
722  struct create_context {
723  	__le32 Next;
724  	__le16 NameOffset;
725  	__le16 NameLength;
726  	__le16 Reserved;
727  	__le16 DataOffset;
728  	__le32 DataLength;
729  	__u8 Buffer[0];
730  } __packed;
731  
732  #define SMB2_LEASE_READ_CACHING_HE	0x01
733  #define SMB2_LEASE_HANDLE_CACHING_HE	0x02
734  #define SMB2_LEASE_WRITE_CACHING_HE	0x04
735  
736  #define SMB2_LEASE_NONE			cpu_to_le32(0x00)
737  #define SMB2_LEASE_READ_CACHING		cpu_to_le32(0x01)
738  #define SMB2_LEASE_HANDLE_CACHING	cpu_to_le32(0x02)
739  #define SMB2_LEASE_WRITE_CACHING	cpu_to_le32(0x04)
740  
741  #define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS cpu_to_le32(0x02)
742  #define SMB2_LEASE_FLAG_PARENT_LEASE_KEY_SET cpu_to_le32(0x00000004)
743  
744  #define SMB2_LEASE_KEY_SIZE 16
745  
746  struct lease_context {
747  	u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
748  	__le32 LeaseState;
749  	__le32 LeaseFlags;
750  	__le64 LeaseDuration;
751  } __packed;
752  
753  struct lease_context_v2 {
754  	u8 LeaseKey[SMB2_LEASE_KEY_SIZE];
755  	__le32 LeaseState;
756  	__le32 LeaseFlags;
757  	__le64 LeaseDuration;
758  	__le64 ParentLeaseKeyLow;
759  	__le64 ParentLeaseKeyHigh;
760  	__le16 Epoch;
761  	__le16 Reserved;
762  } __packed;
763  
764  struct create_lease {
765  	struct create_context ccontext;
766  	__u8   Name[8];
767  	struct lease_context lcontext;
768  } __packed;
769  
770  struct create_lease_v2 {
771  	struct create_context ccontext;
772  	__u8   Name[8];
773  	struct lease_context_v2 lcontext;
774  	__u8   Pad[4];
775  } __packed;
776  
777  struct create_durable {
778  	struct create_context ccontext;
779  	__u8   Name[8];
780  	union {
781  		__u8  Reserved[16];
782  		struct {
783  			__u64 PersistentFileId;
784  			__u64 VolatileFileId;
785  		} Fid;
786  	} Data;
787  } __packed;
788  
789  struct create_posix {
790  	struct create_context ccontext;
791  	__u8	Name[16];
792  	__le32  Mode;
793  	__u32	Reserved;
794  } __packed;
795  
796  /* See MS-SMB2 2.2.13.2.11 */
797  /* Flags */
798  #define SMB2_DHANDLE_FLAG_PERSISTENT	0x00000002
799  struct durable_context_v2 {
800  	__le32 Timeout;
801  	__le32 Flags;
802  	__u64 Reserved;
803  	__u8 CreateGuid[16];
804  } __packed;
805  
806  struct create_durable_v2 {
807  	struct create_context ccontext;
808  	__u8   Name[8];
809  	struct durable_context_v2 dcontext;
810  } __packed;
811  
812  /* See MS-SMB2 2.2.13.2.12 */
813  struct durable_reconnect_context_v2 {
814  	struct {
815  		__u64 PersistentFileId;
816  		__u64 VolatileFileId;
817  	} Fid;
818  	__u8 CreateGuid[16];
819  	__le32 Flags; /* see above DHANDLE_FLAG_PERSISTENT */
820  } __packed;
821  
822  /* See MS-SMB2 2.2.14.2.9 */
823  struct create_on_disk_id {
824  	struct create_context ccontext;
825  	__u8   Name[8];
826  	__le64 DiskFileId;
827  	__le64 VolumeId;
828  	__u32  Reserved[4];
829  } __packed;
830  
831  /* See MS-SMB2 2.2.14.2.12 */
832  struct durable_reconnect_context_v2_rsp {
833  	__le32 Timeout;
834  	__le32 Flags; /* see above DHANDLE_FLAG_PERSISTENT */
835  } __packed;
836  
837  struct create_durable_handle_reconnect_v2 {
838  	struct create_context ccontext;
839  	__u8   Name[8];
840  	struct durable_reconnect_context_v2 dcontext;
841  	__u8   Pad[4];
842  } __packed;
843  
844  /* See MS-SMB2 2.2.13.2.5 */
845  struct crt_twarp_ctxt {
846  	struct create_context ccontext;
847  	__u8	Name[8];
848  	__le64	Timestamp;
849  
850  } __packed;
851  
852  /* See MS-SMB2 2.2.13.2.9 */
853  struct crt_query_id_ctxt {
854  	struct create_context ccontext;
855  	__u8	Name[8];
856  } __packed;
857  
858  #define COPY_CHUNK_RES_KEY_SIZE	24
859  struct resume_key_req {
860  	char ResumeKey[COPY_CHUNK_RES_KEY_SIZE];
861  	__le32	ContextLength;	/* MBZ */
862  	char	Context[0];	/* ignored, Windows sets to 4 bytes of zero */
863  } __packed;
864  
865  /* this goes in the ioctl buffer when doing a copychunk request */
866  struct copychunk_ioctl {
867  	char SourceKey[COPY_CHUNK_RES_KEY_SIZE];
868  	__le32 ChunkCount; /* we are only sending 1 */
869  	__le32 Reserved;
870  	/* array will only be one chunk long for us */
871  	__le64 SourceOffset;
872  	__le64 TargetOffset;
873  	__le32 Length; /* how many bytes to copy */
874  	__u32 Reserved2;
875  } __packed;
876  
877  /* this goes in the ioctl buffer when doing FSCTL_SET_ZERO_DATA */
878  struct file_zero_data_information {
879  	__le64	FileOffset;
880  	__le64	BeyondFinalZero;
881  } __packed;
882  
883  struct copychunk_ioctl_rsp {
884  	__le32 ChunksWritten;
885  	__le32 ChunkBytesWritten;
886  	__le32 TotalBytesWritten;
887  } __packed;
888  
889  struct fsctl_set_integrity_information_req {
890  	__le16	ChecksumAlgorithm;
891  	__le16	Reserved;
892  	__le32	Flags;
893  } __packed;
894  
895  struct fsctl_get_integrity_information_rsp {
896  	__le16	ChecksumAlgorithm;
897  	__le16	Reserved;
898  	__le32	Flags;
899  	__le32	ChecksumChunkSizeInBytes;
900  	__le32	ClusterSizeInBytes;
901  } __packed;
902  
903  struct file_allocated_range_buffer {
904  	__le64	file_offset;
905  	__le64	length;
906  } __packed;
907  
908  /* Integrity ChecksumAlgorithm choices for above */
909  #define	CHECKSUM_TYPE_NONE	0x0000
910  #define	CHECKSUM_TYPE_CRC64	0x0002
911  #define CHECKSUM_TYPE_UNCHANGED	0xFFFF	/* set only */
912  
913  /* Integrity flags for above */
914  #define FSCTL_INTEGRITY_FLAG_CHECKSUM_ENFORCEMENT_OFF	0x00000001
915  
916  /* Reparse structures - see MS-FSCC 2.1.2 */
917  
918  /* struct fsctl_reparse_info_req is empty, only response structs (see below) */
919  
920  struct reparse_data_buffer {
921  	__le32	ReparseTag;
922  	__le16	ReparseDataLength;
923  	__u16	Reserved;
924  	__u8	DataBuffer[0]; /* Variable Length */
925  } __packed;
926  
927  struct reparse_guid_data_buffer {
928  	__le32	ReparseTag;
929  	__le16	ReparseDataLength;
930  	__u16	Reserved;
931  	__u8	ReparseGuid[16];
932  	__u8	DataBuffer[0]; /* Variable Length */
933  } __packed;
934  
935  struct reparse_mount_point_data_buffer {
936  	__le32	ReparseTag;
937  	__le16	ReparseDataLength;
938  	__u16	Reserved;
939  	__le16	SubstituteNameOffset;
940  	__le16	SubstituteNameLength;
941  	__le16	PrintNameOffset;
942  	__le16	PrintNameLength;
943  	__u8	PathBuffer[0]; /* Variable Length */
944  } __packed;
945  
946  #define SYMLINK_FLAG_RELATIVE 0x00000001
947  
948  struct reparse_symlink_data_buffer {
949  	__le32	ReparseTag;
950  	__le16	ReparseDataLength;
951  	__u16	Reserved;
952  	__le16	SubstituteNameOffset;
953  	__le16	SubstituteNameLength;
954  	__le16	PrintNameOffset;
955  	__le16	PrintNameLength;
956  	__le32	Flags;
957  	__u8	PathBuffer[0]; /* Variable Length */
958  } __packed;
959  
960  /* See MS-FSCC 2.1.2.6 and cifspdu.h for struct reparse_posix_data */
961  
962  
963  /* See MS-DFSC 2.2.2 */
964  struct fsctl_get_dfs_referral_req {
965  	__le16 MaxReferralLevel;
966  	__u8 RequestFileName[];
967  } __packed;
968  
969  /* DFS response is struct get_dfs_refer_rsp */
970  
971  /* See MS-SMB2 2.2.31.3 */
972  struct network_resiliency_req {
973  	__le32 Timeout;
974  	__le32 Reserved;
975  } __packed;
976  /* There is no buffer for the response ie no struct network_resiliency_rsp */
977  
978  
979  struct validate_negotiate_info_req {
980  	__le32 Capabilities;
981  	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
982  	__le16 SecurityMode;
983  	__le16 DialectCount;
984  	__le16 Dialects[4]; /* BB expand this if autonegotiate > 4 dialects */
985  } __packed;
986  
987  struct validate_negotiate_info_rsp {
988  	__le32 Capabilities;
989  	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
990  	__le16 SecurityMode;
991  	__le16 Dialect; /* Dialect in use for the connection */
992  } __packed;
993  
994  #define RSS_CAPABLE	cpu_to_le32(0x00000001)
995  #define RDMA_CAPABLE	cpu_to_le32(0x00000002)
996  
997  #define INTERNETWORK	cpu_to_le16(0x0002)
998  #define INTERNETWORKV6	cpu_to_le16(0x0017)
999  
1000  struct network_interface_info_ioctl_rsp {
1001  	__le32 Next; /* next interface. zero if this is last one */
1002  	__le32 IfIndex;
1003  	__le32 Capability; /* RSS or RDMA Capable */
1004  	__le32 Reserved;
1005  	__le64 LinkSpeed;
1006  	__le16 Family;
1007  	__u8 Buffer[126];
1008  } __packed;
1009  
1010  struct iface_info_ipv4 {
1011  	__be16 Port;
1012  	__be32 IPv4Address;
1013  	__be64 Reserved;
1014  } __packed;
1015  
1016  struct iface_info_ipv6 {
1017  	__be16 Port;
1018  	__be32 FlowInfo;
1019  	__u8   IPv6Address[16];
1020  	__be32 ScopeId;
1021  } __packed;
1022  
1023  #define NO_FILE_ID 0xFFFFFFFFFFFFFFFFULL /* general ioctls to srv not to file */
1024  
1025  struct compress_ioctl {
1026  	__le16 CompressionState; /* See cifspdu.h for possible flag values */
1027  } __packed;
1028  
1029  struct duplicate_extents_to_file {
1030  	__u64 PersistentFileHandle; /* source file handle, opaque endianness */
1031  	__u64 VolatileFileHandle;
1032  	__le64 SourceFileOffset;
1033  	__le64 TargetFileOffset;
1034  	__le64 ByteCount;  /* Bytes to be copied */
1035  } __packed;
1036  
1037  /*
1038   * Maximum number of iovs we need for an ioctl request.
1039   * [0] : struct smb2_ioctl_req
1040   * [1] : in_data
1041   */
1042  #define SMB2_IOCTL_IOV_SIZE 2
1043  
1044  struct smb2_ioctl_req {
1045  	struct smb2_sync_hdr sync_hdr;
1046  	__le16 StructureSize;	/* Must be 57 */
1047  	__u16 Reserved;
1048  	__le32 CtlCode;
1049  	__u64  PersistentFileId; /* opaque endianness */
1050  	__u64  VolatileFileId; /* opaque endianness */
1051  	__le32 InputOffset;
1052  	__le32 InputCount;
1053  	__le32 MaxInputResponse;
1054  	__le32 OutputOffset;
1055  	__le32 OutputCount;
1056  	__le32 MaxOutputResponse;
1057  	__le32 Flags;
1058  	__u32  Reserved2;
1059  	__u8   Buffer[0];
1060  } __packed;
1061  
1062  struct smb2_ioctl_rsp {
1063  	struct smb2_sync_hdr sync_hdr;
1064  	__le16 StructureSize;	/* Must be 57 */
1065  	__u16 Reserved;
1066  	__le32 CtlCode;
1067  	__u64  PersistentFileId; /* opaque endianness */
1068  	__u64  VolatileFileId; /* opaque endianness */
1069  	__le32 InputOffset;
1070  	__le32 InputCount;
1071  	__le32 OutputOffset;
1072  	__le32 OutputCount;
1073  	__le32 Flags;
1074  	__u32  Reserved2;
1075  	/* char * buffer[] */
1076  } __packed;
1077  
1078  /* Currently defined values for close flags */
1079  #define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB	cpu_to_le16(0x0001)
1080  struct smb2_close_req {
1081  	struct smb2_sync_hdr sync_hdr;
1082  	__le16 StructureSize;	/* Must be 24 */
1083  	__le16 Flags;
1084  	__le32 Reserved;
1085  	__u64  PersistentFileId; /* opaque endianness */
1086  	__u64  VolatileFileId; /* opaque endianness */
1087  } __packed;
1088  
1089  /*
1090   * Maximum size of a SMB2_CLOSE response is 64 (smb2 header) + 60 (data)
1091   */
1092  #define MAX_SMB2_CLOSE_RESPONSE_SIZE 124
1093  
1094  struct smb2_close_rsp {
1095  	struct smb2_sync_hdr sync_hdr;
1096  	__le16 StructureSize; /* 60 */
1097  	__le16 Flags;
1098  	__le32 Reserved;
1099  	__le64 CreationTime;
1100  	__le64 LastAccessTime;
1101  	__le64 LastWriteTime;
1102  	__le64 ChangeTime;
1103  	__le64 AllocationSize;	/* Beginning of FILE_STANDARD_INFO equivalent */
1104  	__le64 EndOfFile;
1105  	__le32 Attributes;
1106  } __packed;
1107  
1108  struct smb2_flush_req {
1109  	struct smb2_sync_hdr sync_hdr;
1110  	__le16 StructureSize;	/* Must be 24 */
1111  	__le16 Reserved1;
1112  	__le32 Reserved2;
1113  	__u64  PersistentFileId; /* opaque endianness */
1114  	__u64  VolatileFileId; /* opaque endianness */
1115  } __packed;
1116  
1117  struct smb2_flush_rsp {
1118  	struct smb2_sync_hdr sync_hdr;
1119  	__le16 StructureSize;
1120  	__le16 Reserved;
1121  } __packed;
1122  
1123  /* For read request Flags field below, following flag is defined for SMB3.02 */
1124  #define SMB2_READFLAG_READ_UNBUFFERED	0x01
1125  #define SMB2_READFLAG_REQUEST_COMPRESSED 0x02 /* See MS-SMB2 2.2.19 */
1126  
1127  /* Channel field for read and write: exactly one of following flags can be set*/
1128  #define SMB2_CHANNEL_NONE	cpu_to_le32(0x00000000)
1129  #define SMB2_CHANNEL_RDMA_V1	cpu_to_le32(0x00000001) /* SMB3 or later */
1130  #define SMB2_CHANNEL_RDMA_V1_INVALIDATE cpu_to_le32(0x00000002) /* >= SMB3.02 */
1131  
1132  /* SMB2 read request without RFC1001 length at the beginning */
1133  struct smb2_read_plain_req {
1134  	struct smb2_sync_hdr sync_hdr;
1135  	__le16 StructureSize; /* Must be 49 */
1136  	__u8   Padding; /* offset from start of SMB2 header to place read */
1137  	__u8   Flags; /* MBZ unless SMB3.02 or later */
1138  	__le32 Length;
1139  	__le64 Offset;
1140  	__u64  PersistentFileId; /* opaque endianness */
1141  	__u64  VolatileFileId; /* opaque endianness */
1142  	__le32 MinimumCount;
1143  	__le32 Channel; /* MBZ except for SMB3 or later */
1144  	__le32 RemainingBytes;
1145  	__le16 ReadChannelInfoOffset;
1146  	__le16 ReadChannelInfoLength;
1147  	__u8   Buffer[1];
1148  } __packed;
1149  
1150  struct smb2_read_rsp {
1151  	struct smb2_sync_hdr sync_hdr;
1152  	__le16 StructureSize; /* Must be 17 */
1153  	__u8   DataOffset;
1154  	__u8   Reserved;
1155  	__le32 DataLength;
1156  	__le32 DataRemaining;
1157  	__u32  Reserved2;
1158  	__u8   Buffer[1];
1159  } __packed;
1160  
1161  /* For write request Flags field below the following flags are defined: */
1162  #define SMB2_WRITEFLAG_WRITE_THROUGH	0x00000001	/* SMB2.1 or later */
1163  #define SMB2_WRITEFLAG_WRITE_UNBUFFERED	0x00000002	/* SMB3.02 or later */
1164  
1165  struct smb2_write_req {
1166  	struct smb2_sync_hdr sync_hdr;
1167  	__le16 StructureSize; /* Must be 49 */
1168  	__le16 DataOffset; /* offset from start of SMB2 header to write data */
1169  	__le32 Length;
1170  	__le64 Offset;
1171  	__u64  PersistentFileId; /* opaque endianness */
1172  	__u64  VolatileFileId; /* opaque endianness */
1173  	__le32 Channel; /* Reserved MBZ */
1174  	__le32 RemainingBytes;
1175  	__le16 WriteChannelInfoOffset;
1176  	__le16 WriteChannelInfoLength;
1177  	__le32 Flags;
1178  	__u8   Buffer[1];
1179  } __packed;
1180  
1181  struct smb2_write_rsp {
1182  	struct smb2_sync_hdr sync_hdr;
1183  	__le16 StructureSize; /* Must be 17 */
1184  	__u8   DataOffset;
1185  	__u8   Reserved;
1186  	__le32 DataLength;
1187  	__le32 DataRemaining;
1188  	__u32  Reserved2;
1189  	__u8   Buffer[1];
1190  } __packed;
1191  
1192  /* notify flags */
1193  #define SMB2_WATCH_TREE			0x0001
1194  
1195  /* notify completion filter flags. See MS-FSCC 2.6 and MS-SMB2 2.2.35 */
1196  #define FILE_NOTIFY_CHANGE_FILE_NAME		0x00000001
1197  #define FILE_NOTIFY_CHANGE_DIR_NAME		0x00000002
1198  #define FILE_NOTIFY_CHANGE_ATTRIBUTES		0x00000004
1199  #define FILE_NOTIFY_CHANGE_SIZE			0x00000008
1200  #define FILE_NOTIFY_CHANGE_LAST_WRITE		0x00000010
1201  #define FILE_NOTIFY_CHANGE_LAST_ACCESS		0x00000020
1202  #define FILE_NOTIFY_CHANGE_CREATION		0x00000040
1203  #define FILE_NOTIFY_CHANGE_EA			0x00000080
1204  #define FILE_NOTIFY_CHANGE_SECURITY		0x00000100
1205  #define FILE_NOTIFY_CHANGE_STREAM_NAME		0x00000200
1206  #define FILE_NOTIFY_CHANGE_STREAM_SIZE		0x00000400
1207  #define FILE_NOTIFY_CHANGE_STREAM_WRITE		0x00000800
1208  
1209  struct smb2_change_notify_req {
1210  	struct smb2_sync_hdr sync_hdr;
1211  	__le16	StructureSize;
1212  	__le16	Flags;
1213  	__le32	OutputBufferLength;
1214  	__u64	PersistentFileId; /* opaque endianness */
1215  	__u64	VolatileFileId; /* opaque endianness */
1216  	__le32	CompletionFilter;
1217  	__u32	Reserved;
1218  } __packed;
1219  
1220  struct smb2_change_notify_rsp {
1221  	struct smb2_sync_hdr sync_hdr;
1222  	__le16	StructureSize;  /* Must be 9 */
1223  	__le16	OutputBufferOffset;
1224  	__le32	OutputBufferLength;
1225  	__u8	Buffer[1]; /* array of file notify structs */
1226  } __packed;
1227  
1228  #define SMB2_LOCKFLAG_SHARED_LOCK	0x0001
1229  #define SMB2_LOCKFLAG_EXCLUSIVE_LOCK	0x0002
1230  #define SMB2_LOCKFLAG_UNLOCK		0x0004
1231  #define SMB2_LOCKFLAG_FAIL_IMMEDIATELY	0x0010
1232  
1233  struct smb2_lock_element {
1234  	__le64 Offset;
1235  	__le64 Length;
1236  	__le32 Flags;
1237  	__le32 Reserved;
1238  } __packed;
1239  
1240  struct smb2_lock_req {
1241  	struct smb2_sync_hdr sync_hdr;
1242  	__le16 StructureSize; /* Must be 48 */
1243  	__le16 LockCount;
1244  	__le32 Reserved;
1245  	__u64  PersistentFileId; /* opaque endianness */
1246  	__u64  VolatileFileId; /* opaque endianness */
1247  	/* Followed by at least one */
1248  	struct smb2_lock_element locks[1];
1249  } __packed;
1250  
1251  struct smb2_lock_rsp {
1252  	struct smb2_sync_hdr sync_hdr;
1253  	__le16 StructureSize; /* Must be 4 */
1254  	__le16 Reserved;
1255  } __packed;
1256  
1257  struct smb2_echo_req {
1258  	struct smb2_sync_hdr sync_hdr;
1259  	__le16 StructureSize;	/* Must be 4 */
1260  	__u16  Reserved;
1261  } __packed;
1262  
1263  struct smb2_echo_rsp {
1264  	struct smb2_sync_hdr sync_hdr;
1265  	__le16 StructureSize;	/* Must be 4 */
1266  	__u16  Reserved;
1267  } __packed;
1268  
1269  /* search (query_directory) Flags field */
1270  #define SMB2_RESTART_SCANS		0x01
1271  #define SMB2_RETURN_SINGLE_ENTRY	0x02
1272  #define SMB2_INDEX_SPECIFIED		0x04
1273  #define SMB2_REOPEN			0x10
1274  
1275  struct smb2_query_directory_req {
1276  	struct smb2_sync_hdr sync_hdr;
1277  	__le16 StructureSize; /* Must be 33 */
1278  	__u8   FileInformationClass;
1279  	__u8   Flags;
1280  	__le32 FileIndex;
1281  	__u64  PersistentFileId; /* opaque endianness */
1282  	__u64  VolatileFileId; /* opaque endianness */
1283  	__le16 FileNameOffset;
1284  	__le16 FileNameLength;
1285  	__le32 OutputBufferLength;
1286  	__u8   Buffer[1];
1287  } __packed;
1288  
1289  struct smb2_query_directory_rsp {
1290  	struct smb2_sync_hdr sync_hdr;
1291  	__le16 StructureSize; /* Must be 9 */
1292  	__le16 OutputBufferOffset;
1293  	__le32 OutputBufferLength;
1294  	__u8   Buffer[1];
1295  } __packed;
1296  
1297  /* Possible InfoType values */
1298  #define SMB2_O_INFO_FILE	0x01
1299  #define SMB2_O_INFO_FILESYSTEM	0x02
1300  #define SMB2_O_INFO_SECURITY	0x03
1301  #define SMB2_O_INFO_QUOTA	0x04
1302  
1303  /* Security info type additionalinfo flags. See MS-SMB2 (2.2.37) or MS-DTYP */
1304  #define OWNER_SECINFO   0x00000001
1305  #define GROUP_SECINFO   0x00000002
1306  #define DACL_SECINFO   0x00000004
1307  #define SACL_SECINFO   0x00000008
1308  #define LABEL_SECINFO   0x00000010
1309  #define ATTRIBUTE_SECINFO   0x00000020
1310  #define SCOPE_SECINFO   0x00000040
1311  #define BACKUP_SECINFO   0x00010000
1312  #define UNPROTECTED_SACL_SECINFO   0x10000000
1313  #define UNPROTECTED_DACL_SECINFO   0x20000000
1314  #define PROTECTED_SACL_SECINFO   0x40000000
1315  #define PROTECTED_DACL_SECINFO   0x80000000
1316  
1317  /* Flags used for FileFullEAinfo */
1318  #define SL_RESTART_SCAN		0x00000001
1319  #define SL_RETURN_SINGLE_ENTRY	0x00000002
1320  #define SL_INDEX_SPECIFIED	0x00000004
1321  
1322  struct smb2_query_info_req {
1323  	struct smb2_sync_hdr sync_hdr;
1324  	__le16 StructureSize; /* Must be 41 */
1325  	__u8   InfoType;
1326  	__u8   FileInfoClass;
1327  	__le32 OutputBufferLength;
1328  	__le16 InputBufferOffset;
1329  	__u16  Reserved;
1330  	__le32 InputBufferLength;
1331  	__le32 AdditionalInformation;
1332  	__le32 Flags;
1333  	__u64  PersistentFileId; /* opaque endianness */
1334  	__u64  VolatileFileId; /* opaque endianness */
1335  	__u8   Buffer[1];
1336  } __packed;
1337  
1338  struct smb2_query_info_rsp {
1339  	struct smb2_sync_hdr sync_hdr;
1340  	__le16 StructureSize; /* Must be 9 */
1341  	__le16 OutputBufferOffset;
1342  	__le32 OutputBufferLength;
1343  	__u8   Buffer[1];
1344  } __packed;
1345  
1346  /*
1347   * Maximum number of iovs we need for a set-info request.
1348   * The largest one is rename/hardlink
1349   * [0] : struct smb2_set_info_req + smb2_file_[rename|link]_info
1350   * [1] : path
1351   * [2] : compound padding
1352   */
1353  #define SMB2_SET_INFO_IOV_SIZE 3
1354  
1355  struct smb2_set_info_req {
1356  	struct smb2_sync_hdr sync_hdr;
1357  	__le16 StructureSize; /* Must be 33 */
1358  	__u8   InfoType;
1359  	__u8   FileInfoClass;
1360  	__le32 BufferLength;
1361  	__le16 BufferOffset;
1362  	__u16  Reserved;
1363  	__le32 AdditionalInformation;
1364  	__u64  PersistentFileId; /* opaque endianness */
1365  	__u64  VolatileFileId; /* opaque endianness */
1366  	__u8   Buffer[1];
1367  } __packed;
1368  
1369  struct smb2_set_info_rsp {
1370  	struct smb2_sync_hdr sync_hdr;
1371  	__le16 StructureSize; /* Must be 2 */
1372  } __packed;
1373  
1374  struct smb2_oplock_break {
1375  	struct smb2_sync_hdr sync_hdr;
1376  	__le16 StructureSize; /* Must be 24 */
1377  	__u8   OplockLevel;
1378  	__u8   Reserved;
1379  	__le32 Reserved2;
1380  	__u64  PersistentFid;
1381  	__u64  VolatileFid;
1382  } __packed;
1383  
1384  #define SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED cpu_to_le32(0x01)
1385  
1386  struct smb2_lease_break {
1387  	struct smb2_sync_hdr sync_hdr;
1388  	__le16 StructureSize; /* Must be 44 */
1389  	__le16 Reserved;
1390  	__le32 Flags;
1391  	__u8   LeaseKey[16];
1392  	__le32 CurrentLeaseState;
1393  	__le32 NewLeaseState;
1394  	__le32 BreakReason;
1395  	__le32 AccessMaskHint;
1396  	__le32 ShareMaskHint;
1397  } __packed;
1398  
1399  struct smb2_lease_ack {
1400  	struct smb2_sync_hdr sync_hdr;
1401  	__le16 StructureSize; /* Must be 36 */
1402  	__le16 Reserved;
1403  	__le32 Flags;
1404  	__u8   LeaseKey[16];
1405  	__le32 LeaseState;
1406  	__le64 LeaseDuration;
1407  } __packed;
1408  
1409  /*
1410   *	PDU infolevel structure definitions
1411   *	BB consider moving to a different header
1412   */
1413  
1414  /* File System Information Classes */
1415  #define FS_VOLUME_INFORMATION		1 /* Query */
1416  #define FS_LABEL_INFORMATION		2 /* Local only */
1417  #define FS_SIZE_INFORMATION		3 /* Query */
1418  #define FS_DEVICE_INFORMATION		4 /* Query */
1419  #define FS_ATTRIBUTE_INFORMATION	5 /* Query */
1420  #define FS_CONTROL_INFORMATION		6 /* Query, Set */
1421  #define FS_FULL_SIZE_INFORMATION	7 /* Query */
1422  #define FS_OBJECT_ID_INFORMATION	8 /* Query, Set */
1423  #define FS_DRIVER_PATH_INFORMATION	9 /* Local only */
1424  #define FS_VOLUME_FLAGS_INFORMATION	10 /* Local only */
1425  #define FS_SECTOR_SIZE_INFORMATION	11 /* SMB3 or later. Query */
1426  #define FS_POSIX_INFORMATION		100 /* SMB3.1.1 POSIX. Query */
1427  
1428  struct smb2_fs_full_size_info {
1429  	__le64 TotalAllocationUnits;
1430  	__le64 CallerAvailableAllocationUnits;
1431  	__le64 ActualAvailableAllocationUnits;
1432  	__le32 SectorsPerAllocationUnit;
1433  	__le32 BytesPerSector;
1434  } __packed;
1435  
1436  #define SSINFO_FLAGS_ALIGNED_DEVICE		0x00000001
1437  #define SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE 0x00000002
1438  #define SSINFO_FLAGS_NO_SEEK_PENALTY		0x00000004
1439  #define SSINFO_FLAGS_TRIM_ENABLED		0x00000008
1440  
1441  /* sector size info struct */
1442  struct smb3_fs_ss_info {
1443  	__le32 LogicalBytesPerSector;
1444  	__le32 PhysicalBytesPerSectorForAtomicity;
1445  	__le32 PhysicalBytesPerSectorForPerf;
1446  	__le32 FileSystemEffectivePhysicalBytesPerSectorForAtomicity;
1447  	__le32 Flags;
1448  	__le32 ByteOffsetForSectorAlignment;
1449  	__le32 ByteOffsetForPartitionAlignment;
1450  } __packed;
1451  
1452  /* volume info struct - see MS-FSCC 2.5.9 */
1453  #define MAX_VOL_LABEL_LEN	32
1454  struct smb3_fs_vol_info {
1455  	__le64	VolumeCreationTime;
1456  	__u32	VolumeSerialNumber;
1457  	__le32	VolumeLabelLength; /* includes trailing null */
1458  	__u8	SupportsObjects; /* True if eg like NTFS, supports objects */
1459  	__u8	Reserved;
1460  	__u8	VolumeLabel[0]; /* variable len */
1461  } __packed;
1462  
1463  /* partial list of QUERY INFO levels */
1464  #define FILE_DIRECTORY_INFORMATION	1
1465  #define FILE_FULL_DIRECTORY_INFORMATION 2
1466  #define FILE_BOTH_DIRECTORY_INFORMATION 3
1467  #define FILE_BASIC_INFORMATION		4
1468  #define FILE_STANDARD_INFORMATION	5
1469  #define FILE_INTERNAL_INFORMATION	6
1470  #define FILE_EA_INFORMATION	        7
1471  #define FILE_ACCESS_INFORMATION		8
1472  #define FILE_NAME_INFORMATION		9
1473  #define FILE_RENAME_INFORMATION		10
1474  #define FILE_LINK_INFORMATION		11
1475  #define FILE_NAMES_INFORMATION		12
1476  #define FILE_DISPOSITION_INFORMATION	13
1477  #define FILE_POSITION_INFORMATION	14
1478  #define FILE_FULL_EA_INFORMATION	15
1479  #define FILE_MODE_INFORMATION		16
1480  #define FILE_ALIGNMENT_INFORMATION	17
1481  #define FILE_ALL_INFORMATION		18
1482  #define FILE_ALLOCATION_INFORMATION	19
1483  #define FILE_END_OF_FILE_INFORMATION	20
1484  #define FILE_ALTERNATE_NAME_INFORMATION 21
1485  #define FILE_STREAM_INFORMATION		22
1486  #define FILE_PIPE_INFORMATION		23
1487  #define FILE_PIPE_LOCAL_INFORMATION	24
1488  #define FILE_PIPE_REMOTE_INFORMATION	25
1489  #define FILE_MAILSLOT_QUERY_INFORMATION 26
1490  #define FILE_MAILSLOT_SET_INFORMATION	27
1491  #define FILE_COMPRESSION_INFORMATION	28
1492  #define FILE_OBJECT_ID_INFORMATION	29
1493  /* Number 30 not defined in documents */
1494  #define FILE_MOVE_CLUSTER_INFORMATION	31
1495  #define FILE_QUOTA_INFORMATION		32
1496  #define FILE_REPARSE_POINT_INFORMATION	33
1497  #define FILE_NETWORK_OPEN_INFORMATION	34
1498  #define FILE_ATTRIBUTE_TAG_INFORMATION	35
1499  #define FILE_TRACKING_INFORMATION	36
1500  #define FILEID_BOTH_DIRECTORY_INFORMATION 37
1501  #define FILEID_FULL_DIRECTORY_INFORMATION 38
1502  #define FILE_VALID_DATA_LENGTH_INFORMATION 39
1503  #define FILE_SHORT_NAME_INFORMATION	40
1504  #define FILE_SFIO_RESERVE_INFORMATION	44
1505  #define FILE_SFIO_VOLUME_INFORMATION	45
1506  #define FILE_HARD_LINK_INFORMATION	46
1507  #define FILE_NORMALIZED_NAME_INFORMATION 48
1508  #define FILEID_GLOBAL_TX_DIRECTORY_INFORMATION 50
1509  #define FILE_STANDARD_LINK_INFORMATION	54
1510  
1511  struct smb2_file_internal_info {
1512  	__le64 IndexNumber;
1513  } __packed; /* level 6 Query */
1514  
1515  struct smb2_file_rename_info { /* encoding of request for level 10 */
1516  	__u8   ReplaceIfExists; /* 1 = replace existing target with new */
1517  				/* 0 = fail if target already exists */
1518  	__u8   Reserved[7];
1519  	__u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
1520  	__le32 FileNameLength;
1521  	char   FileName[0];     /* New name to be assigned */
1522  } __packed; /* level 10 Set */
1523  
1524  struct smb2_file_link_info { /* encoding of request for level 11 */
1525  	__u8   ReplaceIfExists; /* 1 = replace existing link with new */
1526  				/* 0 = fail if link already exists */
1527  	__u8   Reserved[7];
1528  	__u64  RootDirectory;  /* MBZ for network operations (why says spec?) */
1529  	__le32 FileNameLength;
1530  	char   FileName[0];     /* Name to be assigned to new link */
1531  } __packed; /* level 11 Set */
1532  
1533  struct smb2_file_full_ea_info { /* encoding of response for level 15 */
1534  	__le32 next_entry_offset;
1535  	__u8   flags;
1536  	__u8   ea_name_length;
1537  	__le16 ea_value_length;
1538  	char   ea_data[0]; /* \0 terminated name plus value */
1539  } __packed; /* level 15 Set */
1540  
1541  /*
1542   * This level 18, although with struct with same name is different from cifs
1543   * level 0x107. Level 0x107 has an extra u64 between AccessFlags and
1544   * CurrentByteOffset.
1545   */
1546  struct smb2_file_all_info { /* data block encoding of response to level 18 */
1547  	__le64 CreationTime;	/* Beginning of FILE_BASIC_INFO equivalent */
1548  	__le64 LastAccessTime;
1549  	__le64 LastWriteTime;
1550  	__le64 ChangeTime;
1551  	__le32 Attributes;
1552  	__u32  Pad1;		/* End of FILE_BASIC_INFO_INFO equivalent */
1553  	__le64 AllocationSize;	/* Beginning of FILE_STANDARD_INFO equivalent */
1554  	__le64 EndOfFile;	/* size ie offset to first free byte in file */
1555  	__le32 NumberOfLinks;	/* hard links */
1556  	__u8   DeletePending;
1557  	__u8   Directory;
1558  	__u16  Pad2;		/* End of FILE_STANDARD_INFO equivalent */
1559  	__le64 IndexNumber;
1560  	__le32 EASize;
1561  	__le32 AccessFlags;
1562  	__le64 CurrentByteOffset;
1563  	__le32 Mode;
1564  	__le32 AlignmentRequirement;
1565  	__le32 FileNameLength;
1566  	char   FileName[1];
1567  } __packed; /* level 18 Query */
1568  
1569  struct smb2_file_eof_info { /* encoding of request for level 10 */
1570  	__le64 EndOfFile; /* new end of file value */
1571  } __packed; /* level 20 Set */
1572  
1573  extern char smb2_padding[7];
1574  
1575  #endif				/* _SMB2PDU_H */
1576