VlanConfigDxe

Function Table

Address	Name
	VlanConfigInitPrivateData
	VlanConfigCleanupPrivateData
	VlanConfigValidateConfigHeader
	VlanConfigCompareConfigStrings
	VlanConfigUpdateForm
	VlanConfigFreePool
	VlanConfigDxeEntryPoint
	VlanConfigDriverBindingSupported
	VlanConfigDriverBindingStart
	VlanConfigDriverBindingStop
	VlanConfigDxeUnload
	VlanConfigSet
	VlanConfigFind
	VlanConfigRemove
	VlanConfigExtractConfig
	VlanConfigRouteConfig
	VlanConfigCallback
	VlanConfigComponentName2GetDriverName
	VlanConfigComponentName2GetControllerName
GUID	Definitions
VLAN	Config Protocol GUID: { B3276D32-41FC-4260-7469-D90FAA23DC4C }
Matches	the data at 0x7208 in .rdata
EFI_GUID	gEfiVlanConfigProtocolGuid = {
Managed	Network Protocol GUID: { C1539892-9836-5822-AB31-A01843B41A4D }
EFI_GUID	gEfiManagedNetworkProtocolGuid = {
Device	Path Protocol GUID: { 09576E91-6D3F-11D2-8E39-00A0C969723B }
EFI_GUID	gEfiDevicePathProtocolGuid = {
Simple	Network Protocol GUID: { A19832B9-AC25-11D3-9A2D-0090273FC14D }
EFI_GUID	gEfiSimpleNetworkProtocolGuid = {
HII	Protocol GUIDS (standard UEFI)
EFI_GUID	gEfiHiiStringProtocolGuid = {
Global	Variables
Image	handle (global)
EFI_HANDLE	gImageHandle = NULL;
HII	Config Routing Protocol handle
EFI_HII_CONFIG_ROUTING_PROTOCOL	*gHiiConfigRouting = NULL;
HII	Database Protocol handle
EFI_HII_DATABASE_PROTOCOL	*gHiiDatabase = NULL;
HII	String Protocol handle
EFI_HII_STRING_PROTOCOL	*gHiiString = NULL;
HII	Config Access Protocol handle (lazy init)
EFI_HII_CONFIG_ACCESS_PROTOCOL	*gHiiConfigAccess = NULL;
Default	zero MAC address (6 bytes)
UINT8	mZeroMacAddress[6] = { 0, 0, 0, 0, 0, 0 };
Driver	Binding Protocol instance
EFI_DRIVER_BINDING_PROTOCOL	gVlanConfigDriverBinding = {
Version	NULL, // ImageHandle (filled at entry)
DriverBindingHandle	(filled at entry)
Component	Name 2 Protocol table
EFI_COMPONENT_NAME2_PROTOCOL	gVlanConfigComponentName2 = {
HII	Config Access Protocol instance
EFI_HII_CONFIG_ACCESS_PROTOCOL	gVlanConfigHiiConfigAccess = {
VFR	binary and string package references (defined in auto-generated files)
extern	UINT8 mVlanConfigVfrBin[];
Function	Prototypes for Local Functions
EFI_STATUS	VlanConfigInitPrivateData (
Library	Wrappers
Module	Entry Point
Initialize	global service pointer tables
gImageHandle	= ImageHandle;
Locate	HII protocol interfaces (LocateProtocol with 0 registration)
Status	= gBS->LocateProtocol (
Locate	HII Config Access Protocol (for NV data storage, optional)
Set	up driver binding protocol handles
Install	the Driver Binding and Component Name 2 protocols
Status	= gBS->InstallMultipleProtocolInterfaces (
Driver	Binding Protocol
Check	if VLAN Config Protocol already exists on this controller.
If	so, report ACCESS_DENIED to avoid duplicate binding.
Status	= gBS->OpenProtocol (
The	controller must have Managed Network Protocol
Check	if VLAN Config Protocol already exists on this controller
Open	Simple Network Protocol on the controller (GET_PROTOCOL)
Open	Managed Network Protocol on the controller (BY_DRIVER)
Open	Device Path Protocol on the controller (BY_DRIVER)
Allocate	and initialize private data structure (0x130 bytes)
Private	*= (VLAN_CONFIG_PRIVATE_DATA )VlanConfigAllocateZeroPool (sizeof (VLAN_CONFIG_PRIVATE_DATA));**
Initialize	private data fields
Initialize	VLAN Config Protocol interface
Initialize	the driver instance and create HII resources
Status	= VlanConfigInitPrivateData (Private);
Install	the VLAN Config Protocol on the controller handle
Status	= gBS->InstallProtocolInterface (
Validate	signature and get the private data
Clean	up HII resources
VlanConfigCleanupPrivateData	(Private);
Uninstall	the VLAN Config Protocol
Status	= gBS->UninstallProtocolInterface (
Close	protocols opened by this driver
Driver	Unload / Image Unload Handler
Locate	all handles with VLAN Config Protocol
Status	= gBS->LocateHandleBuffer (
Stop	the driver on each controller
for	(Index = 0; Index < HandleCount; Index++) {
Uninstall	the driver binding and component name protocols
Status	= gBS->UninstallMultipleProtocolInterfaces (
Private	Data Initialization and Cleanup
Extract	current MAC address from SNP's mode data
MacSize	= sizeof (EFI_MAC_ADDRESS);
Register	the formset with HII database
Install	the HII Config Access Protocol on the controller handle
Build	the form title: "VLAN Configuration (MAC:...)"
if	(MacStr != NULL) {
Populate	the VLAN list on the form
Status	= VlanConfigUpdateForm (Private);
Remove	HII Config Access Protocol from the controller
if	(Private->ControllerHandle != NULL) {
Remove	HII packages (strings and forms)
if	(Private->HiiHandle != NULL) {
VLAN	Config Protocol Implementation
HII	Form Population
Query	VLAN list from Managed Network
Get	current VLAN count and list
VlanListCount	= 0;
Create	op-code handles for the form
StartOpCodeHandle	= HiiAllocateOpCodeHandle ();
Create	start label
StartLabel	*= (EFI_IFR_GUID_LABEL )HiiCreateGuidOpCode (**
Create	end label
Cap	VLAN count for form display (max 100)
VlanCount	= PrivateData->NumberOfVlan;
Build	form entries for each existing VLAN
if	(VlanCount > 0) {
Build	string: " VLAN ID: %d"
UnicodeSPrint	(
Pad	to align priority text
PaddingLen	*= 2 (4 - (StrLen (VlanString) - 6));**
spaces	//
Build	priority sub-string
Priority	not stored per-VLAN in min implementation
Create	new string in HII database
StringId	= HiiSetString (PrivateData->HiiHandle, 0, VlanString, NULL);
Create	the text op-code for this VLAN entry
Update	the form
Clean	up op-code handles
if	(StartOpCodeHandle != NULL) {
HII	Config Access Protocol
Validate	the config request string if provided
if	(Request != NULL && !VlanConfigValidateConfigHeader (Request)) {
If	no request string, build a complete request for VLAN_CONFIGURATION_SIZE
if	**(Request == NULL	!StrStr (Request, L"OFFSET")) {**
Ensure	HII Config Routing protocol is loaded
if	(gHiiConfigRouting == NULL) {
Extract	configuration via ConfigRouting
Private	= CR (This, VLAN_CONFIG_PRIVATE_DATA, VlanConfigProtocol
Validate	the config header
if	(!VlanConfigValidateConfigHeader (Configuration)) {
Route	to end for progress reporting
Refresh	data for the form
if	**((QuestionId == 0)	(Action - 3 <= 1)) {**
Process	the form submission
Configuration	*= (VLAN_CONFIGURATION )Private->VlanConfigProtocol;**
Add	a new VLAN - Value contains VLAN ID (u16) and Priority (u8 at +2)
if	(Value != NULL) {
Clear	the form's VLAN ID/Priority fields
ZeroMem	(&Configuration->VlanId, 4);
Reset	the network interface to apply the change
Delete	VLANs that are marked (checkbox set)
VlanCount	= Private->NumberOfVlan;
Delete	VLAN by ID
Config	String Helpers
Check	GUID= section (between start and L"&NAME=")
Result	= VlanConfigCompareConfigStrings (
Check	&NAME= section (between L"&NAME=" and L"&PATH=")
Build	the config string header components:
Walk	the device path to calculate its total size
if	(Private != NULL && Private->DevicePath != NULL) {
Allocate	the maximum possible header size:
GUID	(32 hex) + &NAME= + VlanNvData (8 chars as hex) + &PATH= + device path hex
BufferSize	*= 2 (32 + 8 + 2 + 2* DevicePathSize) + 66;**
Build	the GUID= portion from the protocol GUID
Append	"&NAME="
StrCpyS	(ConfigString, (BufferSize - (ConfigString - Buffer)) / 2, L"&NAME=");
Append	"VlanNvData" as hex chars
for	(Index = 0; Index < sizeof (L"VlanNvData") / 2 - 1; Index++) {
Append	"&PATH="
StrCpyS	(ConfigString, (BufferSize - (ConfigString - Buffer)) / 2, L"&PATH=");
Append	PATH as hex bytes of device path (or empty if none)
Convert	uppercase hex to lowercase in PATH/NAME sections
InValue	= FALSE;
Component	Name Protocol

Generated by HR650X BIOS Decompilation Project