ACTION_HEADER
The ACTION_HEADER
structure contains information about an action. This action is an extension to
the standard transport interface.
typedef struct _ACTION_HEADER {
ULONG transport_id;
USHORT action_code;
USHORT reserved;
} ACTION_HEADER;
Members
transport_id
Specifies the
transport provider. This member can be used to check the validity of the
request by the transport.
This member
is always a four-character string. All strings starting with the letter M are
reserved, as shown in the following example:
|
String |
Meaning |
|
M000 |
All
transports |
|
MNBF |
NBF |
|
MABF |
AsyBEUI |
|
MXNS |
XNS |
action_code
Specifies the
action.
reserved
Reserved.
Remarks
The scope of
the action is determined by the ncb_lsn and ncb_num members of
the NCB structure, as follows:
|
|
ncb_lsn
= 0 |
ncb_lsn
!= 0 |
|
ncb_num
= 0 |
Action
applies to control channel associated with the valid LAN adapter. |
Action
applies to connection identifier associated with the valid local session
number. |
|
ncb_num
!= 0 |
Action
applies to address associated with the valid LAN adapter. |
Illegal
combination. |
See Also