The optional UserRolePermissions Attribute specifies the Permissions that apply to a Node for all Roles granted to current Session. The value of the Attribute is an array of RolePermissionType Structures (see Table 8).
Clients may determine their effective Permissions by logically ORing the Permissions for each Role in the array.
The value of this Attribute is derived from the rules used by the Server to map Sessions to Roles. This mapping may be vendor specific or it may use the standard Role model defined in 4.8.
This Attribute shall not be writeable.
If not specified, the value of DefaultUserRolePermissions Property from the Namespace Metadata Object associated with the Node is used instead. If the NamespaceMetadata Object does not define the Property or does not exist, then the Server does not publish any information about Roles mapped to the current Session.