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Diffstat (limited to 'fs/cifs/smb2pdu.h')
-rw-r--r--fs/cifs/smb2pdu.h294
1 files changed, 287 insertions, 7 deletions
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index f37a1b41b402..4cb4ced258cb 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -87,10 +87,6 @@
#define SMB2_PROTO_NUMBER __constant_cpu_to_le32(0x424d53fe)
-#define SMB2_HEADER_SIZE __constant_le16_to_cpu(64)
-
-#define SMB2_ERROR_STRUCTURE_SIZE2 __constant_le16_to_cpu(9)
-
/*
* SMB2 Header Definition
*
@@ -99,6 +95,9 @@
* "PDU" : "Protocol Data Unit" (ie a network "frame")
*
*/
+
+#define SMB2_HEADER_STRUCTURE_SIZE __constant_cpu_to_le16(64)
+
struct smb2_hdr {
__be32 smb2_buf_length; /* big endian on wire */
/* length is only two or three bytes - with
@@ -140,6 +139,9 @@ struct smb2_pdu {
* command code name for the struct. Note that structures must be packed.
*
*/
+
+#define SMB2_ERROR_STRUCTURE_SIZE2 __constant_cpu_to_le16(9)
+
struct smb2_err_rsp {
struct smb2_hdr hdr;
__le16 StructureSize;
@@ -148,6 +150,10 @@ struct smb2_err_rsp {
__u8 ErrorData[1]; /* variable length */
} __packed;
+#define SMB2_CLIENT_GUID_SIZE 16
+
+extern __u8 cifs_client_guid[SMB2_CLIENT_GUID_SIZE];
+
struct smb2_negotiate_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 36 */
@@ -155,11 +161,17 @@ struct smb2_negotiate_req {
__le16 SecurityMode;
__le16 Reserved; /* MBZ */
__le32 Capabilities;
- __u8 ClientGUID[16]; /* MBZ */
+ __u8 ClientGUID[SMB2_CLIENT_GUID_SIZE];
__le64 ClientStartTime; /* MBZ */
- __le16 Dialects[2]; /* variable length */
+ __le16 Dialects[1]; /* One dialect (vers=) at a time for now */
} __packed;
+/* Dialects */
+#define SMB20_PROT_ID 0x0202
+#define SMB21_PROT_ID 0x0210
+#define SMB30_PROT_ID 0x0300
+#define BAD_PROT_ID 0xFFFF
+
/* SecurityMode flags */
#define SMB2_NEGOTIATE_SIGNING_ENABLED 0x0001
#define SMB2_NEGOTIATE_SIGNING_REQUIRED 0x0002
@@ -167,6 +179,10 @@ struct smb2_negotiate_req {
#define SMB2_GLOBAL_CAP_DFS 0x00000001
#define SMB2_GLOBAL_CAP_LEASING 0x00000002 /* Resp only New to SMB2.1 */
#define SMB2_GLOBAL_CAP_LARGE_MTU 0X00000004 /* Resp only New to SMB2.1 */
+#define SMB2_GLOBAL_CAP_MULTI_CHANNEL 0x00000008 /* New to SMB3 */
+#define SMB2_GLOBAL_CAP_PERSISTENT_HANDLES 0x00000010 /* New to SMB3 */
+#define SMB2_GLOBAL_CAP_DIRECTORY_LEASING 0x00000020 /* New to SMB3 */
+#define SMB2_GLOBAL_CAP_ENCRYPTION 0x00000040 /* New to SMB3 */
/* Internal types */
#define SMB2_NT_FIND 0x00100000
#define SMB2_LARGE_FILES 0x00200000
@@ -305,6 +321,8 @@ struct smb2_tree_disconnect_rsp {
#define SMB2_OPLOCK_LEVEL_EXCLUSIVE 0x08
#define SMB2_OPLOCK_LEVEL_BATCH 0x09
#define SMB2_OPLOCK_LEVEL_LEASE 0xFF
+/* Non-spec internal type */
+#define SMB2_OPLOCK_LEVEL_NOCHANGE 0x99
/* Desired Access Flags */
#define FILE_READ_DATA_LE cpu_to_le32(0x00000001)
@@ -402,7 +420,7 @@ struct smb2_create_req {
__le16 NameLength;
__le32 CreateContextsOffset;
__le32 CreateContextsLength;
- __u8 Buffer[1];
+ __u8 Buffer[8];
} __packed;
struct smb2_create_rsp {
@@ -426,6 +444,39 @@ struct smb2_create_rsp {
__u8 Buffer[1];
} __packed;
+struct create_context {
+ __le32 Next;
+ __le16 NameOffset;
+ __le16 NameLength;
+ __le16 Reserved;
+ __le16 DataOffset;
+ __le32 DataLength;
+ __u8 Buffer[0];
+} __packed;
+
+#define SMB2_LEASE_NONE __constant_cpu_to_le32(0x00)
+#define SMB2_LEASE_READ_CACHING __constant_cpu_to_le32(0x01)
+#define SMB2_LEASE_HANDLE_CACHING __constant_cpu_to_le32(0x02)
+#define SMB2_LEASE_WRITE_CACHING __constant_cpu_to_le32(0x04)
+
+#define SMB2_LEASE_FLAG_BREAK_IN_PROGRESS __constant_cpu_to_le32(0x02)
+
+#define SMB2_LEASE_KEY_SIZE 16
+
+struct lease_context {
+ __le64 LeaseKeyLow;
+ __le64 LeaseKeyHigh;
+ __le32 LeaseState;
+ __le32 LeaseFlags;
+ __le64 LeaseDuration;
+} __packed;
+
+struct create_lease {
+ struct create_context ccontext;
+ __u8 Name[8];
+ struct lease_context lcontext;
+} __packed;
+
/* Currently defined values for close flags */
#define SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB cpu_to_le16(0x0001)
struct smb2_close_req {
@@ -451,6 +502,108 @@ struct smb2_close_rsp {
__le32 Attributes;
} __packed;
+struct smb2_flush_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 24 */
+ __le16 Reserved1;
+ __le32 Reserved2;
+ __u64 PersistentFileId; /* opaque endianness */
+ __u64 VolatileFileId; /* opaque endianness */
+} __packed;
+
+struct smb2_flush_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize;
+ __le16 Reserved;
+} __packed;
+
+struct smb2_read_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 49 */
+ __u8 Padding; /* offset from start of SMB2 header to place read */
+ __u8 Reserved;
+ __le32 Length;
+ __le64 Offset;
+ __u64 PersistentFileId; /* opaque endianness */
+ __u64 VolatileFileId; /* opaque endianness */
+ __le32 MinimumCount;
+ __le32 Channel; /* Reserved MBZ */
+ __le32 RemainingBytes;
+ __le16 ReadChannelInfoOffset; /* Reserved MBZ */
+ __le16 ReadChannelInfoLength; /* Reserved MBZ */
+ __u8 Buffer[1];
+} __packed;
+
+struct smb2_read_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 17 */
+ __u8 DataOffset;
+ __u8 Reserved;
+ __le32 DataLength;
+ __le32 DataRemaining;
+ __u32 Reserved2;
+ __u8 Buffer[1];
+} __packed;
+
+/* For write request Flags field below the following flag is defined: */
+#define SMB2_WRITEFLAG_WRITE_THROUGH 0x00000001
+
+struct smb2_write_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 49 */
+ __le16 DataOffset; /* offset from start of SMB2 header to write data */
+ __le32 Length;
+ __le64 Offset;
+ __u64 PersistentFileId; /* opaque endianness */
+ __u64 VolatileFileId; /* opaque endianness */
+ __le32 Channel; /* Reserved MBZ */
+ __le32 RemainingBytes;
+ __le16 WriteChannelInfoOffset; /* Reserved MBZ */
+ __le16 WriteChannelInfoLength; /* Reserved MBZ */
+ __le32 Flags;
+ __u8 Buffer[1];
+} __packed;
+
+struct smb2_write_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 17 */
+ __u8 DataOffset;
+ __u8 Reserved;
+ __le32 DataLength;
+ __le32 DataRemaining;
+ __u32 Reserved2;
+ __u8 Buffer[1];
+} __packed;
+
+#define SMB2_LOCKFLAG_SHARED_LOCK 0x0001
+#define SMB2_LOCKFLAG_EXCLUSIVE_LOCK 0x0002
+#define SMB2_LOCKFLAG_UNLOCK 0x0004
+#define SMB2_LOCKFLAG_FAIL_IMMEDIATELY 0x0010
+
+struct smb2_lock_element {
+ __le64 Offset;
+ __le64 Length;
+ __le32 Flags;
+ __le32 Reserved;
+} __packed;
+
+struct smb2_lock_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 48 */
+ __le16 LockCount;
+ __le32 Reserved;
+ __u64 PersistentFileId; /* opaque endianness */
+ __u64 VolatileFileId; /* opaque endianness */
+ /* Followed by at least one */
+ struct smb2_lock_element locks[1];
+} __packed;
+
+struct smb2_lock_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 4 */
+ __le16 Reserved;
+} __packed;
+
struct smb2_echo_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 4 */
@@ -463,6 +616,34 @@ struct smb2_echo_rsp {
__u16 Reserved;
} __packed;
+/* search (query_directory) Flags field */
+#define SMB2_RESTART_SCANS 0x01
+#define SMB2_RETURN_SINGLE_ENTRY 0x02
+#define SMB2_INDEX_SPECIFIED 0x04
+#define SMB2_REOPEN 0x10
+
+struct smb2_query_directory_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 33 */
+ __u8 FileInformationClass;
+ __u8 Flags;
+ __le32 FileIndex;
+ __u64 PersistentFileId; /* opaque endianness */
+ __u64 VolatileFileId; /* opaque endianness */
+ __le16 FileNameOffset;
+ __le16 FileNameLength;
+ __le32 OutputBufferLength;
+ __u8 Buffer[1];
+} __packed;
+
+struct smb2_query_directory_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 9 */
+ __le16 OutputBufferOffset;
+ __le32 OutputBufferLength;
+ __u8 Buffer[1];
+} __packed;
+
/* Possible InfoType values */
#define SMB2_O_INFO_FILE 0x01
#define SMB2_O_INFO_FILESYSTEM 0x02
@@ -493,11 +674,84 @@ struct smb2_query_info_rsp {
__u8 Buffer[1];
} __packed;
+struct smb2_set_info_req {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 33 */
+ __u8 InfoType;
+ __u8 FileInfoClass;
+ __le32 BufferLength;
+ __le16 BufferOffset;
+ __u16 Reserved;
+ __le32 AdditionalInformation;
+ __u64 PersistentFileId; /* opaque endianness */
+ __u64 VolatileFileId; /* opaque endianness */
+ __u8 Buffer[1];
+} __packed;
+
+struct smb2_set_info_rsp {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 2 */
+} __packed;
+
+struct smb2_oplock_break {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 24 */
+ __u8 OplockLevel;
+ __u8 Reserved;
+ __le32 Reserved2;
+ __u64 PersistentFid;
+ __u64 VolatileFid;
+} __packed;
+
+#define SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED cpu_to_le32(0x01)
+
+struct smb2_lease_break {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 44 */
+ __le16 Reserved;
+ __le32 Flags;
+ __u8 LeaseKey[16];
+ __le32 CurrentLeaseState;
+ __le32 NewLeaseState;
+ __le32 BreakReason;
+ __le32 AccessMaskHint;
+ __le32 ShareMaskHint;
+} __packed;
+
+struct smb2_lease_ack {
+ struct smb2_hdr hdr;
+ __le16 StructureSize; /* Must be 36 */
+ __le16 Reserved;
+ __le32 Flags;
+ __u8 LeaseKey[16];
+ __le32 LeaseState;
+ __le64 LeaseDuration;
+} __packed;
+
/*
* PDU infolevel structure definitions
* BB consider moving to a different header
*/
+/* File System Information Classes */
+#define FS_VOLUME_INFORMATION 1 /* Query */
+#define FS_LABEL_INFORMATION 2 /* Set */
+#define FS_SIZE_INFORMATION 3 /* Query */
+#define FS_DEVICE_INFORMATION 4 /* Query */
+#define FS_ATTRIBUTE_INFORMATION 5 /* Query */
+#define FS_CONTROL_INFORMATION 6 /* Query, Set */
+#define FS_FULL_SIZE_INFORMATION 7 /* Query */
+#define FS_OBJECT_ID_INFORMATION 8 /* Query, Set */
+#define FS_DRIVER_PATH_INFORMATION 9 /* Query */
+
+struct smb2_fs_full_size_info {
+ __le64 TotalAllocationUnits;
+ __le64 CallerAvailableAllocationUnits;
+ __le64 ActualAvailableAllocationUnits;
+ __le32 SectorsPerAllocationUnit;
+ __le32 BytesPerSector;
+} __packed;
+
/* partial list of QUERY INFO levels */
#define FILE_DIRECTORY_INFORMATION 1
#define FILE_FULL_DIRECTORY_INFORMATION 2
@@ -546,6 +800,28 @@ struct smb2_query_info_rsp {
#define FILEID_GLOBAL_TX_DIRECTORY_INFORMATION 50
#define FILE_STANDARD_LINK_INFORMATION 54
+struct smb2_file_internal_info {
+ __le64 IndexNumber;
+} __packed; /* level 6 Query */
+
+struct smb2_file_rename_info { /* encoding of request for level 10 */
+ __u8 ReplaceIfExists; /* 1 = replace existing target with new */
+ /* 0 = fail if target already exists */
+ __u8 Reserved[7];
+ __u64 RootDirectory; /* MBZ for network operations (why says spec?) */
+ __le32 FileNameLength;
+ char FileName[0]; /* New name to be assigned */
+} __packed; /* level 10 Set */
+
+struct smb2_file_link_info { /* encoding of request for level 11 */
+ __u8 ReplaceIfExists; /* 1 = replace existing link with new */
+ /* 0 = fail if link already exists */
+ __u8 Reserved[7];
+ __u64 RootDirectory; /* MBZ for network operations (why says spec?) */
+ __le32 FileNameLength;
+ char FileName[0]; /* Name to be assigned to new link */
+} __packed; /* level 11 Set */
+
/*
* This level 18, although with struct with same name is different from cifs
* level 0x107. Level 0x107 has an extra u64 between AccessFlags and
@@ -574,4 +850,8 @@ struct smb2_file_all_info { /* data block encoding of response to level 18 */
char FileName[1];
} __packed; /* level 18 Query */
+struct smb2_file_eof_info { /* encoding of request for level 10 */
+ __le64 EndOfFile; /* new end of file value */
+} __packed; /* level 20 Set */
+
#endif /* _SMB2PDU_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 16:57:42 +0000