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LLC_CONTIGUOUS_BUFFER Overview  Group

The LLC_CONTIGUOUS_BUFFER structure represents a buffer for received data. Specify this structure in the LLC_BUFFER structure.

typedef struct {

    PLLC_BUFFER pNextBuffer; 

    USHORT cbFrame; 

    USHORT cbBuffer; 

    USHORT offUserData; 

    USHORT cbUserData; 

    USHORT usStationId; 

    UCHAR uchOptions; 

    UCHAR uchMsgType; 

    USHORT cBuffersLeft; 

    UCHAR uchRcvFS; 

    UCHAR uchAdapterNumber; 

    PLLC_BUFFER pNextFrame; 

} LLC_CONTIGUOUS_BUFFER;

Members

pNextBuffer
Specifies the address of an LLC_BUFFER structure representing the next buffer in the frame.
cbFrame
Length of the entire frame.
cbBuffer
Length of this buffer.
offUserData
User data in this structure.
cbUserData
Length of user data.
usStationId
Station identifier.
uchOptions
Defines how the frame is received. Specify one of the following values.

Option

Description

LLC_CONTIGUOUS_MAC

The received data includes a LAN header.

LLC_CONTIGUOUS_DATA

The received data includes a LAN header and a DLC header.

LLC_NOT_CONTIGUOUS_DATA

The received data does not include the DLC header, but begins with the portion of the LAN frame that follows the DLC header.

uchMsgType
Specifies an LLC_FRAME_TYPES value representing the message type. LLC_FRAME_TYPES is an enumerated type. The following values are defined.

Value

Meaning

LLC_DIRECT_MAC

MAC frame (direct station on IBM Token-Ring network only).

LLC_I_FRAME

Information frame (link stations only).

LLC_UI_FRAME

UI frame.

LLC_XID_COMMAND_POLL

XID command (poll bit).

LLC_XID_COMMAND_NOT_POLL

XID command (not poll bit).

LLC_XID_RESPONSE_FINAL

XID response (final bit).

LLC_XID_RESPONSE_NO_FINAL

XID response (not final bit).

LLC_TEST_RESPONSE_FINAL

TEST response (final bit).

LLC_TEST_RESPONSE_NOT_FINAL

TEST response (not final bit).

LLC_DIRECT_8022

802.2 frame (direct station only).

LLC_DIRECT_ETHERNET_TYPE

Ethernet frame (direct station only).

cBuffersLeft
The number of basic buffer units left.
uchRcvFS
The received frame status.
uchAdapaterNumber
Adapter number.
pNextFrame
Specifies the address of an LLC_BUFFER structure representing the next frame.

See Also

AcsLan, LLC_BUFFER

See also:


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