diff options
| author | Steve French <stfrench@microsoft.com> | 2020-05-31 00:10:16 +0200 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2020-06-02 16:58:17 +0200 |
| commit | 3563a6f4683eb08f9a437e028dd027ac31092381 (patch) | |
| tree | ae09c183702f387a9c6bd783ac03bf968c5a9f5b /fs/cifs/smb2pdu.h | |
| parent | cifs: minor fix to two debug messages (diff) | |
| download | linux-3563a6f4683eb08f9a437e028dd027ac31092381.tar.xz linux-3563a6f4683eb08f9a437e028dd027ac31092381.zip | |
smb3: minor update to compression header definitions
MS-SMB2 specification was updated in March. Make minor additions
and corrections to compression related definitions in smb2pdu.h
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Diffstat (limited to 'fs/cifs/smb2pdu.h')
| -rw-r--r-- | fs/cifs/smb2pdu.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h index 10acf90f858d..3b0e6acf9d7d 100644 --- a/fs/cifs/smb2pdu.h +++ b/fs/cifs/smb2pdu.h @@ -143,8 +143,17 @@ struct smb2_transform_hdr { __u64 SessionId; } __packed; +/* See MS-SMB2 2.2.42 */ +struct smb2_compression_transform_hdr { + __le32 ProtocolId; /* 0xFC 'S' 'M' 'B' */ + __le32 OriginalCompressedSegmentSize; + __le16 CompressionAlgorithm; + __le16 Flags; + __le16 Length; /* if chained it is length, else offset */ +} __packed; + /* See MS-SMB2 2.2.42.1 */ -struct compression_playload_header { +struct compression_payload_header { __le16 AlgorithmId; __le16 Reserved; __le32 Length; @@ -333,7 +342,7 @@ struct smb2_encryption_neg_context { #define SMB3_COMPRESS_LZ77 cpu_to_le16(0x0002) #define SMB3_COMPRESS_LZ77_HUFF cpu_to_le16(0x0003) /* Pattern scanning algorithm See MS-SMB2 3.1.4.4.1 */ -#define SMB3_COMPRESS_PATTERN cpu_to_le16(0x0004) +#define SMB3_COMPRESS_PATTERN cpu_to_le16(0x0004) /* Pattern_V1 */ /* Compression Flags */ #define SMB2_COMPRESSION_CAPABILITIES_FLAG_NONE cpu_to_le32(0x00000000) |