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authorSteve French <stfrench@microsoft.com>2020-03-15 18:04:13 -0500
committerSteve French <stfrench@microsoft.com>2020-03-22 22:49:10 -0500
commit8f233431310b17b4c89ccf273360d0ee4eda5e3d (patch)
tree4a308d77a90503a4dc2d00179830f6530d378c45 /fs/cifs/smb2pdu.h
parent2fe4f62de4892b88c16fee7c2832eb37f1d3c4a0 (diff)
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 <stfrench@microsoft.com> Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Diffstat (limited to 'fs/cifs/smb2pdu.h')
-rw-r--r--fs/cifs/smb2pdu.h17
1 files changed, 16 insertions, 1 deletions
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;