CIFS: Handle SMB2 lock flags

[cascardo/linux.git] / fs / cifs / smb2pdu.h

diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index d775941..d2d132e 100644 (file)
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -526,6 +526,11 @@ struct smb2_write_rsp {
        __u8   Buffer[1];
 } __packed;
 
+#define SMB2_LOCKFLAG_SHARED_LOCK      0x0001
+#define SMB2_LOCKFLAG_EXCLUSIVE_LOCK   0x0002
+#define SMB2_LOCKFLAG_UNLOCK           0x0004
+#define SMB2_LOCKFLAG_FAIL_IMMEDIATELY 0x0010
+
 struct smb2_echo_req {
        struct smb2_hdr hdr;
        __le16 StructureSize;   /* Must be 4 */
@@ -538,6 +543,34 @@ struct smb2_echo_rsp {
        __u16  Reserved;
 } __packed;
 
+/* search (query_directory) Flags field */
+#define SMB2_RESTART_SCANS             0x01
+#define SMB2_RETURN_SINGLE_ENTRY       0x02
+#define SMB2_INDEX_SPECIFIED           0x04
+#define SMB2_REOPEN                    0x10
+
+struct smb2_query_directory_req {
+       struct smb2_hdr hdr;
+       __le16 StructureSize; /* Must be 33 */
+       __u8   FileInformationClass;
+       __u8   Flags;
+       __le32 FileIndex;
+       __u64  PersistentFileId; /* opaque endianness */
+       __u64  VolatileFileId; /* opaque endianness */
+       __le16 FileNameOffset;
+       __le16 FileNameLength;
+       __le32 OutputBufferLength;
+       __u8   Buffer[1];
+} __packed;
+
+struct smb2_query_directory_rsp {
+       struct smb2_hdr hdr;
+       __le16 StructureSize; /* Must be 9 */
+       __le16 OutputBufferOffset;
+       __le32 OutputBufferLength;
+       __u8   Buffer[1];
+} __packed;
+
 /* Possible InfoType values */
 #define SMB2_O_INFO_FILE       0x01
 #define SMB2_O_INFO_FILESYSTEM 0x02
@@ -587,11 +620,40 @@ struct smb2_set_info_rsp {
        __le16 StructureSize; /* Must be 2 */
 } __packed;
 
+struct smb2_oplock_break {
+       struct smb2_hdr hdr;
+       __le16 StructureSize; /* Must be 24 */
+       __u8   OplockLevel;
+       __u8   Reserved;
+       __le32 Reserved2;
+       __u64  PersistentFid;
+       __u64  VolatileFid;
+} __packed;
+
 /*
  *     PDU infolevel structure definitions
  *     BB consider moving to a different header
  */
 
+/* File System Information Classes */
+#define FS_VOLUME_INFORMATION          1 /* Query */
+#define FS_LABEL_INFORMATION           2 /* Set */
+#define FS_SIZE_INFORMATION            3 /* Query */
+#define FS_DEVICE_INFORMATION          4 /* Query */
+#define FS_ATTRIBUTE_INFORMATION       5 /* Query */
+#define FS_CONTROL_INFORMATION         6 /* Query, Set */
+#define FS_FULL_SIZE_INFORMATION       7 /* Query */
+#define FS_OBJECT_ID_INFORMATION       8 /* Query, Set */
+#define FS_DRIVER_PATH_INFORMATION     9 /* Query */
+
+struct smb2_fs_full_size_info {
+       __le64 TotalAllocationUnits;
+       __le64 CallerAvailableAllocationUnits;
+       __le64 ActualAvailableAllocationUnits;
+       __le32 SectorsPerAllocationUnit;
+       __le32 BytesPerSector;
+} __packed;
+
 /* partial list of QUERY INFO levels */
 #define FILE_DIRECTORY_INFORMATION     1
 #define FILE_FULL_DIRECTORY_INFORMATION 2