Commit b9335f62 authored by Steve French's avatar Steve French
Browse files

SMB3: update structures for new compression protocol definitions 



Protocol has been extended for additional compression headers.
See MS-SMB2 section 2.2.42

Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent ec4e4862

fs/cifs/smb2pdu.h

+9 −2
Original line number Diff line number Diff line
@@ -144,7 +144,7 @@ struct smb2_transform_hdr { 
} __packed;



/* See MS-SMB2 2.2.42 */

struct smb2_compression_transform_hdr {

struct smb2_compression_transform_hdr_unchained {

	__le32 ProtocolId;	/* 0xFC 'S' 'M' 'B' */

	__le32 OriginalCompressedSegmentSize;

	__le16 CompressionAlgorithm;
@@ -160,10 +160,17 @@ struct compression_payload_header { 
	__le16	CompressionAlgorithm;

	__le16	Flags;

	__le32	Length; /* length of compressed playload including field below if present */

	/* __le32 OriginalPayloadSize; */ /* optional */

	/* __le32 OriginalPayloadSize; */ /* optional, present when LZNT1, LZ77, LZ77+Huffman */

} __packed;



/* See MS-SMB2 2.2.42.2 */

struct smb2_compression_transform_hdr_chained {

	__le32 ProtocolId;	/* 0xFC 'S' 'M' 'B' */

	__le32 OriginalCompressedSegmentSize;

	/* struct compression_payload_header[] */

} __packed;



/* See MS-SMB2 2.2.42.2.2 */

struct compression_pattern_payload_v1 {

	__le16	Pattern;

	__le16	Reserved1;