2.2.20.1 PROPMARSHALHEADER
PROPMARSHALHEADER is the marshaled representation of a context property. It contains a context property identifier and a context property data buffer supplied by an application or higher-layer protocol. The data buffer contains either an OBJREF that can be of any valid OBJREF format representing a client or prototype context property, or it contains opaque data representing an envoy context property.
|
|
|
|
|
|
|
|
|
|
1 |
|
|
|
|
|
|
|
|
|
2 |
|
|
|
|
|
|
|
|
|
3 |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
clsid (16 bytes) |
|||||||||||||||||||||||||||||||
|
... |
|||||||||||||||||||||||||||||||
|
... |
|||||||||||||||||||||||||||||||
|
policyId (16 bytes) |
|||||||||||||||||||||||||||||||
|
... |
|||||||||||||||||||||||||||||||
|
... |
|||||||||||||||||||||||||||||||
|
flags |
|||||||||||||||||||||||||||||||
|
cb |
|||||||||||||||||||||||||||||||
|
ctxProperty (variable) |
|||||||||||||||||||||||||||||||
|
... |
|||||||||||||||||||||||||||||||
clsid (16 bytes): This field MUST be either GUID_NULL or a CLSID supplied by the application or higher-layer protocol identifying an object class associated with the data in the ctxProperty field. If this field is GUID_NULL, ctxProperty MUST contain an OBJREF representing the marshaled client or prototype context property; otherwise, ctxProperty MUST contain opaque data representing the marshaled envoy context property.
policyId (16 bytes): A GUID supplied by the application or higher-layer protocol containing a context property identifier for the marshaled context property in ctxProperty.
flags (4 bytes): This MUST be set to one of the following values.
-
Value
Meaning
CPFLAG_PROPAGATE
0x00000001
This context property is part of a prototype context.
CPFLAG_EXPOSE
0x00000002
This context property is part of a client context.
CPFLAG_ENVOY
0x00000004
This context property is part of an envoy context.
cb (4 bytes): The unsigned size, in bytes, of the ctxProperty field.
ctxProperty (variable): A buffer of cb bytes supplied by the application or higher-layer protocol. This buffer MUST contain an OBJREF representing the marshaled client or prototype context property if clsid is GUID_NULL; otherwise, it MUST contain opaque data representing the marshaled envoy context property.