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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: Steve French <stfrench@microsoft.com>
This commit is contained in:
Steve French 2021-04-09 20:16:41 -05:00
parent ec4e4862a9
commit b9335f6210
1 changed files with 9 additions and 2 deletions
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11
fs/cifs/smb2pdu.h
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@ -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;