SMB3: Add new compression flags (2fe4f62d) · Commits · 戴 / test

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>

fs/cifs/smb2pdu.h

+7 −1

Original line number	Diff line number	Diff line
		@@ -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;

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