From 2fe4f62de4892b88c16fee7c2832eb37f1d3c4a0 Mon Sep 17 00:00:00 2001 From: Steve French Date: Sun, 15 Mar 2020 17:42:41 -0500 Subject: SMB3: Add new compression flags 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 Acked-by: Ronnie Sahlberg --- fs/cifs/smb2pdu.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'fs/cifs/smb2pdu.h') diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h index 817bc0531536..4a7d154fffae 100644 --- a/fs/cifs/smb2pdu.h +++ b/fs/cifs/smb2pdu.h @@ -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; -- cgit v1.2.3-70-g09d2