CIFS: Add SMB2.1 lease break support

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index e818a5cc5bd8..da099225b1a9 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -693,6 +693,31 @@ struct smb2_oplock_break {
         __u64  VolatileFid;
 } __packed;
 
+#define SMB2_NOTIFY_BREAK_LEASE_FLAG_ACK_REQUIRED cpu_to_le32(0x01)
+
+struct smb2_lease_break {
+        struct smb2_hdr hdr;
+        __le16 StructureSize; /* Must be 44 */
+        __le16 Reserved;
+        __le32 Flags;
+        __u8   LeaseKey[16];
+        __le32 CurrentLeaseState;
+        __le32 NewLeaseState;
+        __le32 BreakReason;
+        __le32 AccessMaskHint;
+        __le32 ShareMaskHint;
+} __packed;
+
+struct smb2_lease_ack {
+        struct smb2_hdr hdr;
+        __le16 StructureSize; /* Must be 36 */
+        __le16 Reserved;
+        __le32 Flags;
+        __u8   LeaseKey[16];
+        __le32 LeaseState;
+        __le64 LeaseDuration;
+} __packed;
+
 /*
  *      PDU infolevel structure definitions
  *      BB consider moving to a different header