Import ArpDxe, Dhcp4Dxe, Ip4Dxe, Mtftp4Dxe, PxeBcDxe and PxeDhcp4Dxe.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3492 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff
665
MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Driver.c
Normal file
665
MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Driver.c
Normal file
@@ -0,0 +1,665 @@
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/** @file
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Copyright (c) 2006 - 2007, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
|
||||
which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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Dhcp4Driver.c
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Abstract:
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**/
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#include "Dhcp4Impl.h"
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#include "Dhcp4Driver.h"
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EFI_DRIVER_BINDING_PROTOCOL gDhcp4DriverBinding = {
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Dhcp4DriverBindingSupported,
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Dhcp4DriverBindingStart,
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Dhcp4DriverBindingStop,
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0xa,
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NULL,
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NULL
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};
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EFI_SERVICE_BINDING_PROTOCOL mDhcp4ServiceBindingTemplete = {
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Dhcp4ServiceBindingCreateChild,
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Dhcp4ServiceBindingDestroyChild
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};
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//@MT: EFI_DRIVER_ENTRY_POINT (Dhcp4DriverEntryPoint)
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EFI_STATUS
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EFIAPI
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Dhcp4DriverEntryPoint (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
|
||||
)
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/*++
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Routine Description:
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Entry point of the DHCP driver to install various protocols.
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Arguments:
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ImageHandle - The driver's image handle
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SystemTable - The system table
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Returns:
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EFI_SUCCESS - All the related protocols are installed.
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Others - Failed to install the protocols.
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--*/
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{
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return NetLibInstallAllDriverProtocols (
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ImageHandle,
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SystemTable,
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&gDhcp4DriverBinding,
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ImageHandle,
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&gDhcp4ComponentName,
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NULL,
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NULL
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);
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}
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/**
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Test to see if DHCP driver supports the ControllerHandle.
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@param This Protocol instance pointer.
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@param ControllerHandle Handle of device to test
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@param RemainingDevicePath Optional parameter use to pick a specific child
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device to start.
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@retval EFI_SUCCES This driver supports this device
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@retval other This driver does not support this device
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**/
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EFI_STATUS
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EFIAPI
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Dhcp4DriverBindingSupported (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
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)
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{
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EFI_STATUS Status;
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Status = gBS->OpenProtocol (
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ControllerHandle,
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&gEfiUdp4ServiceBindingProtocolGuid,
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NULL,
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This->DriverBindingHandle,
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ControllerHandle,
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EFI_OPEN_PROTOCOL_TEST_PROTOCOL
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);
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return Status;
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}
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/**
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Configure the default UDP child to receive all the DHCP traffics
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on this network interface.
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@param UdpIo The UDP IO port to configure
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@param Context The context to the function
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@retval EFI_SUCCESS The UDP IO port is successfully configured.
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@retval Others Failed to configure the UDP child.
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**/
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EFI_STATUS
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DhcpConfigUdpIo (
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IN UDP_IO_PORT *UdpIo,
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IN VOID *Context
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)
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{
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EFI_UDP4_CONFIG_DATA UdpConfigData;
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UdpConfigData.AcceptBroadcast = TRUE;
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UdpConfigData.AcceptPromiscuous = FALSE;
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UdpConfigData.AcceptAnyPort = FALSE;
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UdpConfigData.AllowDuplicatePort = TRUE;
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UdpConfigData.TypeOfService = 0;
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UdpConfigData.TimeToLive = 64;
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UdpConfigData.DoNotFragment = FALSE;
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UdpConfigData.ReceiveTimeout = 0;
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UdpConfigData.TransmitTimeout = 0;
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UdpConfigData.UseDefaultAddress = FALSE;
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UdpConfigData.StationPort = DHCP_CLIENT_PORT;
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UdpConfigData.RemotePort = DHCP_SERVER_PORT;
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NetZeroMem (&UdpConfigData.StationAddress, sizeof (EFI_IPv4_ADDRESS));
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NetZeroMem (&UdpConfigData.SubnetMask, sizeof (EFI_IPv4_ADDRESS));
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NetZeroMem (&UdpConfigData.RemoteAddress, sizeof (EFI_IPv4_ADDRESS));
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return UdpIo->Udp->Configure (UdpIo->Udp, &UdpConfigData);;
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}
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/**
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Destory the DHCP service. The Dhcp4 service may be partly initialized,
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or partly destoried. If a resource is destoried, it is marked as so in
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case the destory failed and being called again later.
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@param DhcpSb The DHCP service instance to destory.
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@retval EFI_SUCCESS The DHCP service is successfully closed.
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**/
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EFI_STATUS
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Dhcp4CloseService (
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IN DHCP_SERVICE *DhcpSb
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)
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{
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DhcpCleanLease (DhcpSb);
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if (DhcpSb->UdpIo != NULL) {
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UdpIoFreePort (DhcpSb->UdpIo);
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DhcpSb->UdpIo = NULL;
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}
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if (DhcpSb->Timer != NULL) {
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gBS->SetTimer (DhcpSb->Timer, TimerCancel, 0);
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gBS->CloseEvent (DhcpSb->Timer);
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DhcpSb->Timer = NULL;
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}
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return EFI_SUCCESS;
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}
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/**
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Create a new DHCP service binding instance for the controller.
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@param Controller The controller to install DHCP service binding
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protocol onto
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@param ImageHandle The driver's image handle
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@param Service The variable to receive the created DHCP service
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instance.
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@retval EFI_OUT_OF_RESOURCES Failed to allocate resource .
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@retval EFI_SUCCESS The DHCP service instance is created.
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**/
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EFI_STATUS
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Dhcp4CreateService (
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IN EFI_HANDLE Controller,
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IN EFI_HANDLE ImageHandle,
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OUT DHCP_SERVICE **Service
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)
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{
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DHCP_SERVICE *DhcpSb;
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EFI_STATUS Status;
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*Service = NULL;
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DhcpSb = NetAllocateZeroPool (sizeof (DHCP_SERVICE));
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if (DhcpSb == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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DhcpSb->Signature = DHCP_SERVICE_SIGNATURE;
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DhcpSb->ServiceBinding = mDhcp4ServiceBindingTemplete;
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DhcpSb->ServiceState = DHCP_UNCONFIGED;
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DhcpSb->InDestory = FALSE;
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DhcpSb->Controller = Controller;
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DhcpSb->Image = ImageHandle;
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NetListInit (&DhcpSb->Children);
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DhcpSb->DhcpState = Dhcp4Stopped;
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DhcpSb->Xid = NET_RANDOM (NetRandomInitSeed ());
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//
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// Create various resources, UdpIo, Timer, and get Mac address
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//
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Status = gBS->CreateEvent (
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EVT_NOTIFY_SIGNAL | EVT_TIMER,
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TPL_CALLBACK,
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DhcpOnTimerTick,
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DhcpSb,
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&DhcpSb->Timer
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);
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if (EFI_ERROR (Status)) {
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goto ON_ERROR;
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}
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DhcpSb->UdpIo = UdpIoCreatePort (Controller, ImageHandle, DhcpConfigUdpIo, NULL);
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if (DhcpSb->UdpIo == NULL) {
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Status = EFI_OUT_OF_RESOURCES;
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goto ON_ERROR;
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}
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DhcpSb->HwLen = (UINT8) DhcpSb->UdpIo->SnpMode.HwAddressSize;
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DhcpSb->HwType = DhcpSb->UdpIo->SnpMode.IfType;
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CopyMem (&DhcpSb->Mac, &DhcpSb->UdpIo->SnpMode.CurrentAddress, sizeof (EFI_MAC_ADDRESS));
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*Service = DhcpSb;
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return EFI_SUCCESS;
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ON_ERROR:
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Dhcp4CloseService (DhcpSb);
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NetFreePool (DhcpSb);
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return Status;
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}
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/**
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Start this driver on ControllerHandle.
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@param This Protocol instance pointer.
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@param ControllerHandle Handle of device to bind driver to
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@param RemainingDevicePath Optional parameter use to pick a specific child
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device to start.
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@retval EFI_SUCCES This driver is added to ControllerHandle
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@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
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@retval other This driver does not support this device
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**/
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EFI_STATUS
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EFIAPI
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Dhcp4DriverBindingStart (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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||||
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
|
||||
)
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{
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DHCP_SERVICE *DhcpSb;
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EFI_STATUS Status;
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//
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// First: test for the DHCP4 Protocol
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//
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Status = gBS->OpenProtocol (
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||||
ControllerHandle,
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||||
&gEfiDhcp4ServiceBindingProtocolGuid,
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NULL,
|
||||
This->DriverBindingHandle,
|
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ControllerHandle,
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EFI_OPEN_PROTOCOL_TEST_PROTOCOL
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||||
);
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if (Status == EFI_SUCCESS) {
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return EFI_ALREADY_STARTED;
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}
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Status = Dhcp4CreateService (ControllerHandle, This->DriverBindingHandle, &DhcpSb);
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if (EFI_ERROR (Status)) {
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return Status;
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||||
}
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||||
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||||
Status = gBS->SetTimer (DhcpSb->Timer, TimerPeriodic, TICKS_PER_SECOND);
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if (EFI_ERROR (Status)) {
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||||
goto ON_ERROR;
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||||
}
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||||
//
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||||
// Install the Dhcp4ServiceBinding Protocol onto ControlerHandle
|
||||
//
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Status = gBS->InstallMultipleProtocolInterfaces (
|
||||
&ControllerHandle,
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||||
&gEfiDhcp4ServiceBindingProtocolGuid,
|
||||
&DhcpSb->ServiceBinding,
|
||||
NULL
|
||||
);
|
||||
|
||||
if (EFI_ERROR (Status)) {
|
||||
goto ON_ERROR;
|
||||
}
|
||||
|
||||
return Status;
|
||||
|
||||
ON_ERROR:
|
||||
Dhcp4CloseService (DhcpSb);
|
||||
NetFreePool (DhcpSb);
|
||||
return Status;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
Stop this driver on ControllerHandle.
|
||||
|
||||
@param This Protocol instance pointer.
|
||||
@param ControllerHandle Handle of device to stop driver on
|
||||
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number
|
||||
of children is zero stop the entire bus driver.
|
||||
@param ChildHandleBuffer List of Child Handles to Stop.
|
||||
|
||||
@retval EFI_SUCCES This driver is removed ControllerHandle
|
||||
@retval other This driver was not removed from this device
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
Dhcp4DriverBindingStop (
|
||||
IN EFI_DRIVER_BINDING_PROTOCOL *This,
|
||||
IN EFI_HANDLE ControllerHandle,
|
||||
IN UINTN NumberOfChildren,
|
||||
IN EFI_HANDLE *ChildHandleBuffer
|
||||
)
|
||||
{
|
||||
EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding;
|
||||
DHCP_SERVICE *DhcpSb;
|
||||
DHCP_PROTOCOL *Instance;
|
||||
EFI_HANDLE NicHandle;
|
||||
EFI_STATUS Status;
|
||||
EFI_TPL OldTpl;
|
||||
|
||||
//
|
||||
// DHCP driver opens UDP child, So, the ControllerHandle is the
|
||||
// UDP child handle. locate the Nic handle first.
|
||||
//
|
||||
NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiUdp4ProtocolGuid);
|
||||
|
||||
if (NicHandle == NULL) {
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
Status = gBS->OpenProtocol (
|
||||
NicHandle,
|
||||
&gEfiDhcp4ServiceBindingProtocolGuid,
|
||||
(VOID **) &ServiceBinding,
|
||||
This->DriverBindingHandle,
|
||||
NicHandle,
|
||||
EFI_OPEN_PROTOCOL_GET_PROTOCOL
|
||||
);
|
||||
|
||||
if (EFI_ERROR (Status)) {
|
||||
return EFI_DEVICE_ERROR;
|
||||
}
|
||||
|
||||
DhcpSb = DHCP_SERVICE_FROM_THIS (ServiceBinding);
|
||||
|
||||
if (DhcpSb->InDestory) {
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
OldTpl = NET_RAISE_TPL (NET_TPL_LOCK);
|
||||
DhcpSb->InDestory = TRUE;
|
||||
|
||||
//
|
||||
// Don't use NET_LIST_FOR_EACH_SAFE here, Dhcp4ServiceBindingDestoryChild
|
||||
// may cause other child to be deleted.
|
||||
//
|
||||
while (!NetListIsEmpty (&DhcpSb->Children)) {
|
||||
Instance = NET_LIST_HEAD (&DhcpSb->Children, DHCP_PROTOCOL, Link);
|
||||
Dhcp4ServiceBindingDestroyChild (ServiceBinding, Instance->Handle);
|
||||
}
|
||||
|
||||
if (DhcpSb->NumChildren != 0) {
|
||||
Status = EFI_DEVICE_ERROR;
|
||||
goto ON_ERROR;
|
||||
}
|
||||
|
||||
DhcpSb->ServiceState = DHCP_DESTORY;
|
||||
|
||||
Status = gBS->UninstallProtocolInterface (
|
||||
NicHandle,
|
||||
&gEfiDhcp4ServiceBindingProtocolGuid,
|
||||
ServiceBinding
|
||||
);
|
||||
|
||||
if (EFI_ERROR (Status)) {
|
||||
goto ON_ERROR;
|
||||
}
|
||||
|
||||
Dhcp4CloseService (DhcpSb);
|
||||
NET_RESTORE_TPL (OldTpl);
|
||||
|
||||
NetFreePool (DhcpSb);
|
||||
return EFI_SUCCESS;
|
||||
|
||||
ON_ERROR:
|
||||
DhcpSb->InDestory = FALSE;
|
||||
NET_RESTORE_TPL (OldTpl);
|
||||
return Status;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
Initialize a new DHCP child
|
||||
|
||||
@param DhcpSb The dhcp service instance
|
||||
@param Instance The dhcp instance to initialize
|
||||
|
||||
@return None
|
||||
|
||||
**/
|
||||
VOID
|
||||
DhcpInitProtocol (
|
||||
IN DHCP_SERVICE *DhcpSb,
|
||||
IN DHCP_PROTOCOL *Instance
|
||||
)
|
||||
{
|
||||
Instance->Signature = DHCP_PROTOCOL_SIGNATURE;
|
||||
CopyMem (&Instance->Dhcp4Protocol, &mDhcp4ProtocolTemplate, sizeof (EFI_DHCP4_PROTOCOL));
|
||||
NetListInit (&Instance->Link);
|
||||
Instance->Handle = NULL;
|
||||
Instance->Service = DhcpSb;
|
||||
Instance->InDestory = FALSE;
|
||||
Instance->CompletionEvent = NULL;
|
||||
Instance->RenewRebindEvent = NULL;
|
||||
Instance->Token = NULL;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
Creates a child handle with a set of DHCP4 services.
|
||||
|
||||
@param This Protocol instance pointer.
|
||||
@param ChildHandle Pointer to the handle of the child to create. If
|
||||
it is NULL, then a new handle is created. If it
|
||||
is not NULL, then the DHCP4 services are added to
|
||||
the existing child handle.
|
||||
|
||||
@retval EFI_SUCCES The child handle was created with the DHCP4
|
||||
services
|
||||
@retval EFI_OUT_OF_RESOURCES There are not enough resources to create the child
|
||||
@retval other The child handle was not created
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
Dhcp4ServiceBindingCreateChild (
|
||||
IN EFI_SERVICE_BINDING_PROTOCOL *This,
|
||||
IN EFI_HANDLE *ChildHandle
|
||||
)
|
||||
{
|
||||
DHCP_SERVICE *DhcpSb;
|
||||
DHCP_PROTOCOL *Instance;
|
||||
EFI_STATUS Status;
|
||||
EFI_TPL OldTpl;
|
||||
VOID *Udp4;
|
||||
|
||||
if ((This == NULL) || (ChildHandle == NULL)) {
|
||||
return EFI_INVALID_PARAMETER;
|
||||
}
|
||||
|
||||
Instance = NetAllocatePool (sizeof (*Instance));
|
||||
|
||||
if (Instance == NULL) {
|
||||
return EFI_OUT_OF_RESOURCES;
|
||||
}
|
||||
|
||||
DhcpSb = DHCP_SERVICE_FROM_THIS (This);
|
||||
DhcpInitProtocol (DhcpSb, Instance);
|
||||
|
||||
//
|
||||
// Install DHCP4 onto ChildHandle
|
||||
//
|
||||
Status = gBS->InstallMultipleProtocolInterfaces (
|
||||
ChildHandle,
|
||||
&gEfiDhcp4ProtocolGuid,
|
||||
&Instance->Dhcp4Protocol,
|
||||
NULL
|
||||
);
|
||||
|
||||
if (EFI_ERROR (Status)) {
|
||||
NetFreePool (Instance);
|
||||
return Status;
|
||||
}
|
||||
|
||||
Instance->Handle = *ChildHandle;
|
||||
|
||||
//
|
||||
// Open the Udp4 protocol BY_CHILD.
|
||||
//
|
||||
Status = gBS->OpenProtocol (
|
||||
DhcpSb->UdpIo->UdpHandle,
|
||||
&gEfiUdp4ProtocolGuid,
|
||||
(VOID **) &Udp4,
|
||||
gDhcp4DriverBinding.DriverBindingHandle,
|
||||
Instance->Handle,
|
||||
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
|
||||
);
|
||||
if (EFI_ERROR (Status)) {
|
||||
gBS->UninstallMultipleProtocolInterfaces (
|
||||
Instance->Handle,
|
||||
&gEfiDhcp4ProtocolGuid,
|
||||
&Instance->Dhcp4Protocol,
|
||||
NULL
|
||||
);
|
||||
|
||||
NetFreePool (Instance);
|
||||
return Status;
|
||||
}
|
||||
|
||||
OldTpl = NET_RAISE_TPL (NET_TPL_LOCK);
|
||||
|
||||
NetListInsertTail (&DhcpSb->Children, &Instance->Link);
|
||||
DhcpSb->NumChildren++;
|
||||
|
||||
NET_RESTORE_TPL (OldTpl);
|
||||
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
Destroys a child handle with a set of DHCP4 services.
|
||||
|
||||
@param This Protocol instance pointer.
|
||||
@param ChildHandle Handle of the child to destroy
|
||||
|
||||
@retval EFI_SUCCES The DHCP4 service is removed from the child handle
|
||||
@retval EFI_UNSUPPORTED The child handle does not support the DHCP4
|
||||
service
|
||||
@retval EFI_INVALID_PARAMETER Child handle is not a valid EFI Handle.
|
||||
@retval EFI_ACCESS_DENIED The child handle could not be destroyed because
|
||||
its DHCP4 services are being used.
|
||||
@retval other The child handle was not destroyed
|
||||
|
||||
**/
|
||||
EFI_STATUS
|
||||
EFIAPI
|
||||
Dhcp4ServiceBindingDestroyChild (
|
||||
IN EFI_SERVICE_BINDING_PROTOCOL *This,
|
||||
IN EFI_HANDLE ChildHandle
|
||||
)
|
||||
{
|
||||
DHCP_SERVICE *DhcpSb;
|
||||
DHCP_PROTOCOL *Instance;
|
||||
EFI_DHCP4_PROTOCOL *Dhcp;
|
||||
EFI_TPL OldTpl;
|
||||
EFI_STATUS Status;
|
||||
|
||||
if ((This == NULL) || (ChildHandle == NULL)) {
|
||||
return EFI_INVALID_PARAMETER;
|
||||
}
|
||||
|
||||
//
|
||||
// Retrieve the private context data structures
|
||||
//
|
||||
Status = gBS->OpenProtocol (
|
||||
ChildHandle,
|
||||
&gEfiDhcp4ProtocolGuid,
|
||||
(VOID **) &Dhcp,
|
||||
gDhcp4DriverBinding.DriverBindingHandle,
|
||||
ChildHandle,
|
||||
EFI_OPEN_PROTOCOL_GET_PROTOCOL
|
||||
);
|
||||
|
||||
if (EFI_ERROR (Status)) {
|
||||
return EFI_UNSUPPORTED;
|
||||
}
|
||||
|
||||
Instance = DHCP_INSTANCE_FROM_THIS (Dhcp);
|
||||
DhcpSb = DHCP_SERVICE_FROM_THIS (This);
|
||||
|
||||
if (Instance->Service != DhcpSb) {
|
||||
return EFI_INVALID_PARAMETER;
|
||||
}
|
||||
|
||||
//
|
||||
// A child can be destoried more than once. For example,
|
||||
// Dhcp4DriverBindingStop will destory all of its children.
|
||||
// when caller driver is being stopped, it will destory the
|
||||
// dhcp child it opens.
|
||||
//
|
||||
if (Instance->InDestory) {
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
|
||||
OldTpl = NET_RAISE_TPL (NET_TPL_LOCK);
|
||||
Instance->InDestory = TRUE;
|
||||
|
||||
//
|
||||
// Close the Udp4 protocol.
|
||||
//
|
||||
gBS->CloseProtocol (
|
||||
DhcpSb->UdpIo->UdpHandle,
|
||||
&gEfiUdp4ProtocolGuid,
|
||||
gDhcp4DriverBinding.DriverBindingHandle,
|
||||
ChildHandle
|
||||
);
|
||||
|
||||
//
|
||||
// Uninstall the DHCP4 protocol first to enable a top down destruction.
|
||||
//
|
||||
Status = gBS->UninstallProtocolInterface (
|
||||
ChildHandle,
|
||||
&gEfiDhcp4ProtocolGuid,
|
||||
Dhcp
|
||||
);
|
||||
|
||||
if (EFI_ERROR (Status)) {
|
||||
Instance->InDestory = FALSE;
|
||||
|
||||
NET_RESTORE_TPL (OldTpl);
|
||||
return Status;
|
||||
}
|
||||
|
||||
if (DhcpSb->ActiveChild == Instance) {
|
||||
DhcpYieldControl (DhcpSb);
|
||||
}
|
||||
|
||||
NetListRemoveEntry (&Instance->Link);
|
||||
DhcpSb->NumChildren--;
|
||||
|
||||
NET_RESTORE_TPL (OldTpl);
|
||||
|
||||
NetFreePool (Instance);
|
||||
return EFI_SUCCESS;
|
||||
}
|
||||
Reference in New Issue
Block a user