3.1.4.42 RRPC_FWEnumNetworks (Opnum 42)

The RRPC_FWEnumNetworks (Opnum 42) method requests the server to return all the networks to which the host with the firewall and advanced security component is connected. The only method supported is binary version 0x020A.

 unsigned long RRPC_FWEnumNetworks(
   [in] FW_CONN_HANDLE rpcConnHandle,
   [in] FW_POLICY_STORE_HANDLE hPolicy,
   [out] unsigned long pdwNumNetworks,
   [out, size_is(,*pdwNumNetworks)] 
     PFW_NETWORK* ppNetworks
 );

rpcConnHandle: This parameter is an RPC binding handle that connects to the RPC interface of the Firewall and Advanced Security Protocol.

hPolicy: This input parameter is an FW_POLICY_STORE_HANDLE data type. The data type MUST contain an opened policy store handle, successfully opened with the RRPC_FWOpenPolicyStore (Opnum 0) method. This handle MUST be of the FW_STORE_TYPE_DYNAMIC store.

pdwNumNetworks: This is an output parameter that, on success, MUST be equal to the number of networks returned.

ppNetworks: This is an output parameter that, on success, contains an array of FW_NETWORK data types.

Return Values: The method returns 0 if successful; if it fails, it returns a nonzero error code. The field can take any specific error code value, as specified in [MS-ERREF]. The following return values are common.

Return value/code	Description
0x00000005 ERROR_ACCESS_DENIED	The client does not have the required credentials to call the method.
0x00000057 ERROR_INVALID_PARAMETER	A parameter contains invalid profiles.

Exceptions Thrown: No exceptions are thrown beyond those thrown by the underlying RPC protocol, as specified in [MS-RPCE]. If any lower-layer errors are reported by RPC exception, this exception is converted to an error code and reported to higher-layer protocols via the return value.

The server MUST validate that the client is authorized to perform the requested operation (as defined in section 3.1.4) before executing this method.