2.2.1.1 MESSAGE_PACKET
The MESSAGE_PACKET structure defines the initial message fields that are contained by all MTAGs in this protocol, as specified in [MS-CMP] section 2.2.2.
|
|
|
|
|
|
|
|
|
|
1 |
|
|
|
|
|
|
|
|
|
2 |
|
|
|
|
|
|
|
|
|
3 |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
MsgTag |
|||||||||||||||||||||||||||||||
|
fIsMaster |
|||||||||||||||||||||||||||||||
|
dwConnectionId |
|||||||||||||||||||||||||||||||
|
dwUserMsgType |
|||||||||||||||||||||||||||||||
|
dwcbVarLenData |
|||||||||||||||||||||||||||||||
|
dwReserved1 |
|||||||||||||||||||||||||||||||
MsgTag (4 bytes): A 4-byte integer value that describes the OLE transaction message type. For all uses in this document, this value MUST be MTAG_USER_MESSAGE, as specified in [MS-CMP] section 2.2.8.
fIsMaster (4 bytes): A 4-byte value that indicates the direction of the message in the conversation.
-
This value MUST be one of the following values.
-
Value
Meaning
0x00000000
The message is sent by the party that accepted the connection.
0x00000001
The message is sent by the party that initiated the connection.
dwConnectionId (4 bytes): A 4-byte integer value that MUST contain the unique identifier for the associated connection.
dwUserMsgType (4 bytes): This field contains the message type identifier. Each MTAG that is defined in this section MUST specify a distinct value for this field for a specified connection type.
dwcbVarLenData (4 bytes): An unsigned 4-byte integer value that MUST contain the size, in bytes, of the message buffer that contains the MESSAGE_HEADER structure, minus the size, in bytes, of the MESSAGE_HEADER structure itself.
dwReserved1 (4 bytes): Reserved. This value MUST be set to an implementation-specific value and MUST be ignored on receipt.