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SMB3: Add new compression flags

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Additional compression capabilities can now be negotiated and a
new compression algorithm.  Add the flags for these.

See newly updated MS-SMB2 sections 3.1.4.4.1 and 2.2.3.1.3

Signed-off-by: Steve French <stfrench@microsoft.com>
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
This commit is contained in:
Steve French 2020-03-15 17:42:41 -05:00
parent cff2def598
commit 2fe4f62de4
1 changed files with 7 additions and 1 deletions
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8
fs/cifs/smb2pdu.h
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@ -307,11 +307,17 @@ struct smb2_encryption_neg_context {
#define SMB3_COMPRESS_LZNT1 cpu_to_le16(0x0001)
#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)
/* Compression Flags */
#define SMB2_COMPRESSION_CAPABILITIES_FLAG_NONE cpu_to_le32(0x00000000)
#define SMB2_COMPRESSION_CAPABILITIES_FLAG_CHAINED cpu_to_le32(0x00000001)
struct smb2_compression_capabilities_context {
__le16 ContextType; /* 3 */
__le16 DataLength;
__u32 Reserved;
__u32 Flags;
__le16 CompressionAlgorithmCount;
__u16 Padding;
__u32 Reserved1;