1 /* SPDX-License-Identifier: LGPL-2.1 */
4 * Copyright (c) International Business Machines Corp., 2009, 2013
6 * Author(s): Steve French (sfrench@us.ibm.com)
7 * Pavel Shilovsky (pshilovsky@samba.org) 2012
17 /* 52 transform hdr + 64 hdr + 88 create rsp */
18 #define SMB2_TRANSFORM_HEADER_SIZE 52
19 #define MAX_SMB2_HDR_SIZE 204
21 /* The total header size for SMB2 read and write */
22 #define SMB2_READWRITE_PDU_HEADER_SIZE (48 + sizeof(struct smb2_hdr))
24 /* See MS-SMB2 2.2.43 */
25 struct smb2_rdma_transform {
26 __le16 RdmaDescriptorOffset;
27 __le16 RdmaDescriptorLength;
28 __le32 Channel; /* for values see channel description in smb2 read above */
29 __le16 TransformCount;
35 #define SMB2_RDMA_TRANSFORM_TYPE_ENCRYPTION 0x0001
36 #define SMB2_RDMA_TRANSFORM_TYPE_SIGNING 0x0002
38 struct smb2_rdma_crypto_transform {
40 __le16 SignatureLength;
43 __u8 Signature[]; /* variable length */
45 /* followed by padding */
49 * Definitions for SMB2 Protocol Data Units (network frames)
51 * See MS-SMB2.PDF specification for protocol details.
52 * The Naming convention is the lower case version of the SMB2
53 * command code name for the struct. Note that structures must be packed.
57 #define COMPOUND_FID 0xFFFFFFFFFFFFFFFFULL
59 #define SMB2_SYMLINK_STRUCT_SIZE \
60 (sizeof(struct smb2_err_rsp) + sizeof(struct smb2_symlink_err_rsp))
62 #define SYMLINK_ERROR_TAG 0x4c4d5953
64 struct smb2_symlink_err_rsp {
66 __le32 SymLinkErrorTag;
68 __le16 ReparseDataLength;
69 __le16 UnparsedPathLength;
70 __le16 SubstituteNameOffset;
71 __le16 SubstituteNameLength;
72 __le16 PrintNameOffset;
73 __le16 PrintNameLength;
78 /* SMB 3.1.1 and later dialects. See MS-SMB2 section 2.2.2.1 */
79 struct smb2_error_context_rsp {
80 __le32 ErrorDataLength;
82 __u8 ErrorContextData; /* ErrorDataLength long array */
86 #define SMB2_ERROR_ID_DEFAULT 0x00000000
87 #define SMB2_ERROR_ID_SHARE_REDIRECT cpu_to_le32(0x72645253) /* "rdRS" */
89 /* Defines for Type field below (see MS-SMB2 2.2.2.2.2.1) */
90 #define MOVE_DST_IPADDR_V4 cpu_to_le32(0x00000001)
91 #define MOVE_DST_IPADDR_V6 cpu_to_le32(0x00000002)
93 struct move_dst_ipaddr {
96 __u8 address[16]; /* IPv4 followed by 12 bytes rsvd or IPv6 address */
99 struct share_redirect_error_context_rsp {
100 __le32 StructureSize;
101 __le32 NotificationType;
102 __le32 ResourceNameOffset;
103 __le32 ResourceNameLength;
107 struct move_dst_ipaddr IpAddrMoveList[];
108 /* __u8 ResourceName[] */ /* Name of share as counted Unicode string */
112 * Maximum number of iovs we need for an open/create request.
113 * [0] : struct smb2_create_req
115 * [2] : lease context
116 * [3] : durable context
117 * [4] : posix context
118 * [5] : time warp context
119 * [6] : query id context
120 * [7] : compound padding
122 #define SMB2_CREATE_IOV_SIZE 8
125 * Maximum size of a SMB2_CREATE response is 64 (smb2 header) +
126 * 88 (fixed part of create response) + 520 (path) + 208 (contexts) +
127 * 2 bytes of padding.
129 #define MAX_SMB2_CREATE_RESPONSE_SIZE 880
131 #define SMB2_LEASE_READ_CACHING_HE 0x01
132 #define SMB2_LEASE_HANDLE_CACHING_HE 0x02
133 #define SMB2_LEASE_WRITE_CACHING_HE 0x04
136 /* See MS-SMB2 2.2.13.2.11 */
138 #define SMB2_DHANDLE_FLAG_PERSISTENT 0x00000002
139 struct durable_context_v2 {
146 struct create_durable_v2 {
147 struct create_context ccontext;
149 struct durable_context_v2 dcontext;
152 /* See MS-SMB2 2.2.13.2.12 */
153 struct durable_reconnect_context_v2 {
155 __u64 PersistentFileId;
156 __u64 VolatileFileId;
159 __le32 Flags; /* see above DHANDLE_FLAG_PERSISTENT */
162 /* See MS-SMB2 2.2.14.2.12 */
163 struct durable_reconnect_context_v2_rsp {
165 __le32 Flags; /* see above DHANDLE_FLAG_PERSISTENT */
168 struct create_durable_handle_reconnect_v2 {
169 struct create_context ccontext;
171 struct durable_reconnect_context_v2 dcontext;
175 /* See MS-SMB2 2.2.13.2.5 */
176 struct crt_twarp_ctxt {
177 struct create_context ccontext;
183 /* See MS-SMB2 2.2.13.2.9 */
184 struct crt_query_id_ctxt {
185 struct create_context ccontext;
190 struct create_context ccontext;
196 #define COPY_CHUNK_RES_KEY_SIZE 24
197 struct resume_key_req {
198 char ResumeKey[COPY_CHUNK_RES_KEY_SIZE];
199 __le32 ContextLength; /* MBZ */
200 char Context[]; /* ignored, Windows sets to 4 bytes of zero */
203 /* this goes in the ioctl buffer when doing a copychunk request */
204 struct copychunk_ioctl {
205 char SourceKey[COPY_CHUNK_RES_KEY_SIZE];
206 __le32 ChunkCount; /* we are only sending 1 */
208 /* array will only be one chunk long for us */
211 __le32 Length; /* how many bytes to copy */
215 struct copychunk_ioctl_rsp {
216 __le32 ChunksWritten;
217 __le32 ChunkBytesWritten;
218 __le32 TotalBytesWritten;
221 /* See MS-FSCC 2.3.29 and 2.3.30 */
222 struct get_retrieval_pointer_count_req {
223 __le64 StartingVcn; /* virtual cluster number (signed) */
226 struct get_retrieval_pointer_count_rsp {
231 * See MS-FSCC 2.3.33 and 2.3.34
232 * request is the same as get_retrieval_point_count_req struct above
234 struct smb3_extents {
236 __le64 Lcn; /* logical cluster number */
239 struct get_retrieval_pointers_refcount_rsp {
243 struct smb3_extents extents[];
246 /* See MS-DFSC 2.2.2 */
247 struct fsctl_get_dfs_referral_req {
248 __le16 MaxReferralLevel;
249 __u8 RequestFileName[];
252 /* DFS response is struct get_dfs_refer_rsp */
254 /* See MS-SMB2 2.2.31.3 */
255 struct network_resiliency_req {
259 /* There is no buffer for the response ie no struct network_resiliency_rsp */
261 #define RSS_CAPABLE cpu_to_le32(0x00000001)
262 #define RDMA_CAPABLE cpu_to_le32(0x00000002)
264 #define INTERNETWORK cpu_to_le16(0x0002)
265 #define INTERNETWORKV6 cpu_to_le16(0x0017)
267 struct network_interface_info_ioctl_rsp {
268 __le32 Next; /* next interface. zero if this is last one */
270 __le32 Capability; /* RSS or RDMA Capable */
277 struct iface_info_ipv4 {
283 struct iface_info_ipv6 {
286 __u8 IPv6Address[16];
290 #define NO_FILE_ID 0xFFFFFFFFFFFFFFFFULL /* general ioctls to srv not to file */
292 struct compress_ioctl {
293 __le16 CompressionState; /* See cifspdu.h for possible flag values */
297 * Maximum number of iovs we need for an ioctl request.
298 * [0] : struct smb2_ioctl_req
301 #define SMB2_IOCTL_IOV_SIZE 2
304 * PDU query infolevel structure definitions
305 * BB consider moving to a different header
308 struct smb2_file_full_ea_info { /* encoding of response for level 15 */
309 __le32 next_entry_offset;
312 __le16 ea_value_length;
313 char ea_data[]; /* \0 terminated name plus value */
314 } __packed; /* level 15 Set */
316 struct smb2_file_reparse_point_info {
321 struct smb2_file_network_open_info {
323 __le64 LastAccessTime;
324 __le64 LastWriteTime;
326 __le64 AllocationSize;
330 } __packed; /* level 34 Query also similar returned in close rsp and open rsp */
332 /* See MS-FSCC 2.4.21 */
333 struct smb2_file_id_information {
334 __le64 VolumeSerialNumber;
335 __u64 PersistentFileId; /* opaque endianness */
336 __u64 VolatileFileId; /* opaque endianness */
337 } __packed; /* level 59 */
339 /* See MS-FSCC 2.4.18 */
340 struct smb2_file_id_extd_directory_info {
341 __le32 NextEntryOffset;
344 __le64 LastAccessTime;
345 __le64 LastWriteTime;
348 __le64 AllocationSize;
349 __le32 FileAttributes;
350 __le32 FileNameLength;
351 __le32 EaSize; /* EA size */
352 __le32 ReparsePointTag; /* valid if FILE_ATTR_REPARSE_POINT set in FileAttributes */
353 __le64 UniqueId; /* inode num - le since Samba puts ino in low 32 bit */
355 } __packed; /* level 60 */
357 extern char smb2_padding[7];
359 /* equivalent of the contents of SMB3.1.1 POSIX open context response */
360 struct create_posix_rsp {
364 struct cifs_sid owner; /* var-sized on the wire */
365 struct cifs_sid group; /* var-sized on the wire */
368 #define SMB2_QUERY_DIRECTORY_IOV_SIZE 2
371 * SMB2-only POSIX info level for query dir
373 * See posix_info_sid_size(), posix_info_extra_size() and
374 * posix_info_parse() to help with the handling of this struct.
376 struct smb2_posix_info {
377 __le32 NextEntryOffset;
380 __le64 LastAccessTime;
381 __le64 LastWriteTime;
384 __le64 AllocationSize;
385 __le32 DosAttributes;
389 /* beginning of POSIX Create Context Response */
394 * var sized owner SID
395 * var sized group SID
396 * le32 filenamelength
402 * Parsed version of the above struct. Allows direct access to the
403 * variable length fields
405 struct smb2_posix_info_parsed {
406 const struct smb2_posix_info *base;
408 struct cifs_sid owner;
409 struct cifs_sid group;
414 #endif /* _SMB2PDU_H */