CIFS: Add brlock support for SMB2

Signed-off-by: Pavel Shilovsky <pshilovsky@etersoft.ru>

1 files changed, 24 insertions, 0 deletions

diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index d2d132e94155..889ee5e193d9 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -531,6 +531,30 @@ struct smb2_write_rsp {
 #define SMB2_LOCKFLAG_UNLOCK            0x0004
 #define SMB2_LOCKFLAG_FAIL_IMMEDIATELY  0x0010
 
+struct smb2_lock_element {
+        __le64 Offset;
+        __le64 Length;
+        __le32 Flags;
+        __le32 Reserved;
+} __packed;
+
+struct smb2_lock_req {
+        struct smb2_hdr hdr;
+        __le16 StructureSize; /* Must be 48 */
+        __le16 LockCount;
+        __le32 Reserved;
+        __u64  PersistentFileId; /* opaque endianness */
+        __u64  VolatileFileId; /* opaque endianness */
+        /* Followed by at least one */
+        struct smb2_lock_element locks[1];
+} __packed;
+
+struct smb2_lock_rsp {
+        struct smb2_hdr hdr;
+        __le16 StructureSize; /* Must be 4 */
+        __le16 Reserved;
+} __packed;
+
 struct smb2_echo_req {
         struct smb2_hdr hdr;
         __le16 StructureSize;   /* Must be 4 */