2.2.4.14.1 Request
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SMB_Parameters { UCHAR WordCount; Words { SHORT FID; ULONG CountOfBytesToUnlock; ULONG UnlockOffsetInBytes; } } SMB_Data { USHORT ByteCount; }
SMB_Header:
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TID (2 bytes): This field MUST contain a valid TID, and the TID MUST be the same TID used in the SMB Header (section 2.2.3.1) when the block range was locked.
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UID (2 bytes): This field MUST contain a valid UID, and the UID MUST be the same UID used in the SMB Header when the block range was locked.
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PID (2 bytes): This field MUST contain a valid PID, and the PID MUST be the same PID used in the SMB Header when the block range was locked.
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SMB_Parameters |
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SMB_Data |
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SMB_Parameters (11 bytes):
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91
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92
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93
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1WordCount
Words
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WordCount (1 byte): This field MUST be 0x05.
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Words (10 bytes):
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91
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92
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93
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1FID
CountOfBytesToUnlock
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UnlockOffsetInBytes
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FID (2 bytes): This field MUST be a valid 16-bit signed integer indicating the file from which the data MUST be read.
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CountOfBytesToUnlock (4 bytes): This field is a 32-bit unsigned integer indicating the number of contiguous bytes to be unlocked.
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UnlockOffsetInBytes (4 bytes): This field is a 32-bit unsigned integer indicating the offset, in number of bytes, from which to begin the unlock. Because this field is limited to 32-bits, this command is inappropriate for files that have 64-bit offsets.
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SMB_Data (2 bytes):
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91
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92
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93
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1ByteCount
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ByteCount (2 bytes): This field MUST be 0x0000. No data is sent by this message.