+EFI_STATUS\r
+Tcp4CreateSocketCallback (\r
+ IN SOCKET *This,\r
+ IN VOID *Context\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ TCP4_SERVICE_DATA *TcpServiceData;\r
+ EFI_IP4_PROTOCOL *Ip4;\r
+\r
+ TcpServiceData = ((TCP4_PROTO_DATA *) This->ProtoReserved)->TcpService;\r
+\r
+ //\r
+ // Open the default Ip4 protocol of IP_IO BY_DRIVER.\r
+ //\r
+ Status = gBS->OpenProtocol (\r
+ TcpServiceData->IpIo->ChildHandle,\r
+ &gEfiIp4ProtocolGuid,\r
+ (VOID **) &Ip4,\r
+ TcpServiceData->DriverBindingHandle,\r
+ This->SockHandle,\r
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Open the device path on the handle where service binding resides on.\r
+ //\r
+ Status = gBS->OpenProtocol (\r
+ TcpServiceData->ControllerHandle,\r
+ &gEfiDevicePathProtocolGuid,\r
+ (VOID **) &This->ParentDevicePath,\r
+ TcpServiceData->DriverBindingHandle,\r
+ This->SockHandle,\r
+ EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ gBS->CloseProtocol (\r
+ TcpServiceData->IpIo->ChildHandle,\r
+ &gEfiIp4ProtocolGuid,\r
+ TcpServiceData->DriverBindingHandle,\r
+ This->SockHandle\r
+ );\r
+ } else {\r
+ //\r
+ // Insert this socket into the SocketList.\r
+ //\r
+ NetListInsertTail (&TcpServiceData->SocketList, &This->Link);\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+VOID\r
+Tcp4DestroySocketCallback (\r
+ IN SOCKET *This,\r
+ IN VOID *Context\r
+ )\r
+{\r
+ TCP4_SERVICE_DATA *TcpServiceData;\r
+\r
+ TcpServiceData = ((TCP4_PROTO_DATA *) This->ProtoReserved)->TcpService;\r
+\r
+ //\r
+ // Remove this node from the list.\r
+ //\r
+ NetListRemoveEntry (&This->Link);\r
+\r
+ //\r
+ // Close the device path protocol\r
+ //\r
+ gBS->CloseProtocol (\r
+ TcpServiceData->ControllerHandle,\r
+ &gEfiDevicePathProtocolGuid,\r
+ TcpServiceData->DriverBindingHandle,\r
+ This->SockHandle\r
+ );\r
+\r
+ //\r
+ // Close the Ip4 protocol.\r
+ //\r
+ gBS->CloseProtocol (\r
+ TcpServiceData->IpIo->ChildHandle,\r
+ &gEfiIp4ProtocolGuid,\r
+ TcpServiceData->DriverBindingHandle,\r
+ This->SockHandle\r
+ );\r
+}\r
+\r