diff options
Diffstat (limited to 'EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4.c')
| -rw-r--r-- | EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4.c | 342 |
1 files changed, 342 insertions, 0 deletions
diff --git a/EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4.c b/EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4.c new file mode 100644 index 0000000000..57a44a02b4 --- /dev/null +++ b/EdkModulePkg/Universal/Network/PxeDhcp4/Dxe/PxeDhcp4.c @@ -0,0 +1,342 @@ +/*++
+
+Copyright (c) 2006, Intel Corporation
+All rights reserved. This program and the accompanying materials
+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
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+Module Name:
+ PxeDhcp4.c
+
+Abstract:
+
+--*/
+
+
+#include "PxeDhcp4.h"
+
+/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+//
+// Prototypes
+// Driver model protocol interface
+//
+EFI_STATUS
+EFIAPI
+PxeDhcp4DriverEntryPoint (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ );
+
+EFI_STATUS
+EFIAPI
+PxeDhcp4DriverBindingSupported (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ );
+
+EFI_STATUS
+EFIAPI
+PxeDhcp4DriverBindingStart (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ );
+
+EFI_STATUS
+EFIAPI
+PxeDhcp4DriverBindingStop (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE ControllerHandle,
+ IN UINTN NumberOfChildren,
+ IN EFI_HANDLE *ChildHandleBuffer
+ );
+
+/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+
+//
+// PXE DHCP Protocol Interface
+//
+EFI_DRIVER_BINDING_PROTOCOL gPxeDhcp4DriverBinding = {
+ PxeDhcp4DriverBindingSupported,
+ PxeDhcp4DriverBindingStart,
+ PxeDhcp4DriverBindingStop,
+ 0x10,
+ NULL,
+ NULL
+};
+
+/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+EFI_STATUS
+EFIAPI
+PxeDhcp4DriverBindingSupported (
+ IN EFI_DRIVER_BINDING_PROTOCOL * This,
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_DEVICE_PATH_PROTOCOL * RemainingDevicePath OPTIONAL
+ )
+/*++
+
+ Routine Description:
+ Test to see if this driver supports ControllerHandle. Any
+ ControllerHandle that contains a PxeBaseCode protocol can be
+ supported.
+
+ Arguments:
+ This - Protocol instance pointer.
+ ControllerHandle - Handle of device to test.
+ RemainingDevicePath - Not used.
+
+ Returns:
+ EFI_SUCCESS - This driver supports this device.
+ EFI_ALREADY_STARTED - This driver is already running on this
+ device.
+ other - This driver does not support this device.
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;
+
+ //
+ // Open the IO Abstraction(s) needed to perform the supported test.
+ //
+ Status = gBS->OpenProtocol (
+ ControllerHandle,
+ &gEfiPxeBaseCodeProtocolGuid,
+ (VOID **) &PxeBc,
+ This->DriverBindingHandle,
+ ControllerHandle,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ //
+ // Close the I/O Abstraction(s) used to perform the supported test.
+ //
+ return gBS->CloseProtocol (
+ ControllerHandle,
+ &gEfiPxeBaseCodeProtocolGuid,
+ This->DriverBindingHandle,
+ ControllerHandle
+ );
+}
+
+/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+EFI_STATUS
+EFIAPI
+PxeDhcp4DriverBindingStart (
+ IN EFI_DRIVER_BINDING_PROTOCOL * This,
+ IN EFI_HANDLE ControllerHandle,
+ IN EFI_DEVICE_PATH_PROTOCOL * RemainingDevicePath OPTIONAL
+ )
+/*++
+
+ Routine Description:
+ Start this driver on ControllerHandle by opening a PxeBaseCode
+ protocol and installing a PxeDhcp4 protocol on ControllerHandle.
+
+ Arguments:
+ This - Protocol instance pointer.
+ ControllerHandle - Handle of device to bind driver to.
+ RemainingDevicePath - Not used, always produce all possible
+ children.
+
+ Returns:
+ EFI_SUCCESS - This driver is added to ControllerHandle.
+ EFI_ALREADY_STARTED - This driver is already running on
+ ControllerHandle.
+ other - This driver does not support this device.
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_PXE_BASE_CODE_PROTOCOL *PxeBc;
+ EFI_SIMPLE_NETWORK_PROTOCOL *Snp;
+ PXE_DHCP4_PRIVATE_DATA *Private;
+
+ //
+ // Connect to the PxeBaseCode interface on ControllerHandle.
+ //
+ Status = gBS->OpenProtocol (
+ ControllerHandle,
+ &gEfiPxeBaseCodeProtocolGuid,
+ (VOID **) &PxeBc,
+ This->DriverBindingHandle,
+ ControllerHandle,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ //
+ // BaseCode has already grabbed the SimpleNetwork interface
+ // so just do a HandleProtocol() to get it.
+ //
+ Status = gBS->HandleProtocol (
+ ControllerHandle,
+ &gEfiSimpleNetworkProtocolGuid,
+ (VOID **) &Snp
+ );
+
+ if (EFI_ERROR (Status)) {
+ goto error_exit;
+ }
+
+ ASSERT (Snp);
+
+ //
+ // Initialize the PXE DHCP device instance.
+ //
+ Status = gBS->AllocatePool (
+ EfiBootServicesData,
+ sizeof (PXE_DHCP4_PRIVATE_DATA),
+ (VOID **) &Private
+ );
+
+ if (EFI_ERROR (Status)) {
+ goto error_exit;
+ }
+ //
+ //
+ //
+ ZeroMem (Private, sizeof (PXE_DHCP4_PRIVATE_DATA));
+
+ Private->Signature = PXE_DHCP4_PRIVATE_DATA_SIGNATURE;
+ Private->PxeBc = PxeBc;
+ Private->Snp = Snp;
+ Private->Handle = ControllerHandle;
+ Private->PxeDhcp4.Revision = EFI_PXE_DHCP4_PROTOCOL_REVISION;
+ Private->PxeDhcp4.Run = PxeDhcp4Run;
+ Private->PxeDhcp4.Setup = PxeDhcp4Setup;
+ Private->PxeDhcp4.Init = PxeDhcp4Init;
+ Private->PxeDhcp4.Select = PxeDhcp4Select;
+ Private->PxeDhcp4.Renew = PxeDhcp4Renew;
+ Private->PxeDhcp4.Rebind = PxeDhcp4Rebind;
+ Private->PxeDhcp4.Release = PxeDhcp4Release;
+ Private->PxeDhcp4.Data = NULL;
+
+ //
+ // Install protocol interfaces for the PXE DHCP device.
+ //
+ Status = gBS->InstallProtocolInterface (
+ &ControllerHandle,
+ &gEfiPxeDhcp4ProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ &Private->PxeDhcp4
+ );
+
+ if (!EFI_ERROR (Status)) {
+ return Status;
+ }
+
+error_exit: ;
+ gBS->CloseProtocol (
+ ControllerHandle,
+ &gEfiPxeBaseCodeProtocolGuid,
+ This->DriverBindingHandle,
+ ControllerHandle
+ );
+
+ return Status;
+}
+
+/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
+EFI_STATUS
+EFIAPI
+PxeDhcp4DriverBindingStop (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE ControllerHandle,
+ IN UINTN NumberOfChildren,
+ IN EFI_HANDLE *ChildHandleBuffer
+ )
+/*++
+
+ Routine Description:
+ Stop this driver on ControllerHandle by removing PXE DHCP
+ protocol and closing the PXE Base Code protocol on
+ ControllerHandle.
+
+ Arguments:
+ This - Protocol instance pointer.
+ ControllerHandle - Handle of device to stop driver on.
+ NumberOfChildren - Not used.
+ ChildHandleBuffer - Not used.
+
+ Returns:
+ EFI_SUCCESS - This driver is removed ControllerHandle.
+ other - This driver was not removed from this
+ device.
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_PXE_DHCP4_PROTOCOL *PxeDhcp4;
+ PXE_DHCP4_PRIVATE_DATA *Private;
+
+ //
+ // Get our context back.
+ //
+ Status = gBS->OpenProtocol (
+ ControllerHandle,
+ &gEfiPxeDhcp4ProtocolGuid,
+ (VOID **) &PxeDhcp4,
+ This->DriverBindingHandle,
+ ControllerHandle,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
+ );
+
+ if (EFI_ERROR (Status)) {
+ return EFI_UNSUPPORTED;
+ }
+
+ Private = PXE_DHCP4_PRIVATE_DATA_FROM_THIS (PxeDhcp4);
+
+ //
+ // Release allocated resources
+ //
+ if (Private->PxeDhcp4.Data) {
+ gBS->FreePool (Private->PxeDhcp4.Data);
+ Private->PxeDhcp4.Data = NULL;
+ }
+ //
+ // Uninstall our protocol
+ //
+ Status = gBS->UninstallProtocolInterface (
+ ControllerHandle,
+ &gEfiPxeDhcp4ProtocolGuid,
+ &Private->PxeDhcp4
+ );
+
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ //
+ // Close any consumed protocols
+ //
+ Status = gBS->CloseProtocol (
+ ControllerHandle,
+ &gEfiPxeBaseCodeProtocolGuid,
+ This->DriverBindingHandle,
+ ControllerHandle
+ );
+
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ //
+ // Release our private data
+ //
+ gBS->FreePool (Private);
+
+ return Status;
+}
+
+/* EOF - PxeDhcp4.c */
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