From 8f233431310b17b4c89ccf273360d0ee4eda5e3d Mon Sep 17 00:00:00 2001 From: Steve French Date: Sun, 15 Mar 2020 18:04:13 -0500 Subject: [PATCH] SMB3: Additional compression structures New transform header structures. See recent updates to MS-SMB2 adding section 2.2.42.1 and 2.2.42.2 Signed-off-by: Steve French Acked-by: Ronnie Sahlberg --- fs/cifs/smb2pdu.h | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h index 4a7d154fffae..8b9f546dd842 100644 --- a/fs/cifs/smb2pdu.h +++ b/fs/cifs/smb2pdu.h @@ -137,6 +137,21 @@ struct smb2_transform_hdr { __u64 SessionId; } __packed; +/* See MS-SMB2 2.2.42.1 */ +struct compression_playload_header { + __le16 AlgorithmId; + __le16 Reserved; + __le32 Length; +} __packed; + +/* See MS-SMB2 2.2.42.2 */ +struct compression_pattern_payload_v1 { + __le16 Pattern; + __le16 Reserved1; + __le16 Reserved2; + __le32 Repetitions; +} __packed; + /* * SMB2 flag definitions */ @@ -1186,7 +1201,7 @@ struct smb2_write_req { __le64 Offset; __u64 PersistentFileId; /* opaque endianness */ __u64 VolatileFileId; /* opaque endianness */ - __le32 Channel; /* Reserved MBZ */ + __le32 Channel; /* MBZ unless SMB3.02 or later */ __le32 RemainingBytes; __le16 WriteChannelInfoOffset; __le16 WriteChannelInfoLength;