--- /dev/null
+/** @file
+ This file provides a definition of the EFI IPv4 Configuration
+ Protocol.
+
+Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials are licensed and made available under
+the terms and conditions of the BSD License that 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.
+
+ @par Revision Reference:
+ This Protocol is introduced in UEFI Specification 2.0.
+
+**/
+#ifndef __EFI_IP4CONFIG_PROTOCOL_H__
+#define __EFI_IP4CONFIG_PROTOCOL_H__
+
+FILE_LICENCE ( BSD3 );
+
+#include <ipxe/efi/Protocol/Ip4.h>
+
+#define EFI_IP4_CONFIG_PROTOCOL_GUID \
+ { \
+ 0x3b95aa31, 0x3793, 0x434b, {0x86, 0x67, 0xc8, 0x07, 0x08, 0x92, 0xe0, 0x5e } \
+ }
+
+typedef struct _EFI_IP4_CONFIG_PROTOCOL EFI_IP4_CONFIG_PROTOCOL;
+
+#define IP4_CONFIG_VARIABLE_ATTRIBUTES \
+ (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS)
+
+///
+/// EFI_IP4_IPCONFIG_DATA contains the minimum IPv4 configuration data
+/// that is needed to start basic network communication. The StationAddress
+/// and SubnetMask must be a valid unicast IP address and subnet mask.
+/// If RouteTableSize is not zero, then RouteTable contains a properly
+/// formatted routing table for the StationAddress/SubnetMask, with the
+/// last entry in the table being the default route.
+///
+typedef struct {
+ ///
+ /// Default station IP address, stored in network byte order.
+ ///
+ EFI_IPv4_ADDRESS StationAddress;
+ ///
+ /// Default subnet mask, stored in network byte order.
+ ///
+ EFI_IPv4_ADDRESS SubnetMask;
+ ///
+ /// Number of entries in the following RouteTable. May be zero.
+ ///
+ UINT32 RouteTableSize;
+ ///
+ /// Default routing table data (stored in network byte order).
+ /// Ignored if RouteTableSize is zero.
+ ///
+ EFI_IP4_ROUTE_TABLE *RouteTable;
+} EFI_IP4_IPCONFIG_DATA;
+
+
+/**
+ Starts running the configuration policy for the EFI IPv4 Protocol driver.
+
+ The Start() function is called to determine and to begin the platform
+ configuration policy by the EFI IPv4 Protocol driver. This determination may
+ be as simple as returning EFI_UNSUPPORTED if there is no EFI IPv4 Protocol
+ driver configuration policy. It may be as involved as loading some defaults
+ from nonvolatile storage, downloading dynamic data from a DHCP server, and
+ checking permissions with a site policy server.
+ Starting the configuration policy is just the beginning. It may finish almost
+ instantly or it may take several minutes before it fails to retrieve configuration
+ information from one or more servers. Once the policy is started, drivers
+ should use the DoneEvent parameter to determine when the configuration policy
+ has completed. EFI_IP4_CONFIG_PROTOCOL.GetData() must then be called to
+ determine if the configuration succeeded or failed.
+ Until the configuration completes successfully, EFI IPv4 Protocol driver instances
+ that are attempting to use default configurations must return EFI_NO_MAPPING.
+ Once the configuration is complete, the EFI IPv4 Configuration Protocol driver
+ signals DoneEvent. The configuration may need to be updated in the future.
+ Note that in this case the EFI IPv4 Configuration Protocol driver must signal
+ ReconfigEvent, and all EFI IPv4 Protocol driver instances that are using default
+ configurations must return EFI_NO_MAPPING until the configuration policy has
+ been rerun.
+
+ @param This The pointer to the EFI_IP4_CONFIG_PROTOCOL instance.
+ @param DoneEvent Event that will be signaled when the EFI IPv4
+ Protocol driver configuration policy completes
+ execution. This event must be of type EVT_NOTIFY_SIGNAL.
+ @param ReconfigEvent Event that will be signaled when the EFI IPv4
+ Protocol driver configuration needs to be updated.
+ This event must be of type EVT_NOTIFY_SIGNAL.
+
+ @retval EFI_SUCCESS The configuration policy for the EFI IPv4 Protocol
+ driver is now running.
+ @retval EFI_INVALID_PARAMETER One or more of the following parameters is NULL:
+ This
+ DoneEvent
+ ReconfigEvent
+ @retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
+ @retval EFI_ALREADY_STARTED The configuration policy for the EFI IPv4 Protocol
+ driver was already started.
+ @retval EFI_DEVICE_ERROR An unexpected system error or network error occurred.
+ @retval EFI_UNSUPPORTED This interface does not support the EFI IPv4 Protocol
+ driver configuration.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_IP4_CONFIG_START)(
+ IN EFI_IP4_CONFIG_PROTOCOL *This,
+ IN EFI_EVENT DoneEvent,
+ IN EFI_EVENT ReconfigEvent
+ );
+
+/**
+ Stops running the configuration policy for the EFI IPv4 Protocol driver.
+
+ The Stop() function stops the configuration policy for the EFI IPv4 Protocol driver.
+ All configuration data will be lost after calling Stop().
+
+ @param This The pointer to the EFI_IP4_CONFIG_PROTOCOL instance.
+
+ @retval EFI_SUCCESS The configuration policy for the EFI IPv4 Protocol
+ driver has been stopped.
+ @retval EFI_INVALID_PARAMETER This is NULL.
+ @retval EFI_NOT_STARTED The configuration policy for the EFI IPv4 Protocol
+ driver was not started.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_IP4_CONFIG_STOP)(
+ IN EFI_IP4_CONFIG_PROTOCOL *This
+ );
+
+/**
+ Returns the default configuration data (if any) for the EFI IPv4 Protocol driver.
+
+ The GetData() function returns the current configuration data for the EFI IPv4
+ Protocol driver after the configuration policy has completed.
+
+ @param This The pointer to the EFI_IP4_CONFIG_PROTOCOL instance.
+ @param IpConfigDataSize On input, the size of the IpConfigData buffer.
+ On output, the count of bytes that were written
+ into the IpConfigData buffer.
+ @param IpConfigData The pointer to the EFI IPv4 Configuration Protocol
+ driver configuration data structure.
+ Type EFI_IP4_IPCONFIG_DATA is defined in
+ "Related Definitions" below.
+
+ @retval EFI_SUCCESS The EFI IPv4 Protocol driver configuration has been returned.
+ @retval EFI_INVALID_PARAMETER This is NULL.
+ @retval EFI_NOT_STARTED The configuration policy for the EFI IPv4 Protocol
+ driver is not running.
+ @retval EFI_NOT_READY EFI IPv4 Protocol driver configuration is still running.
+ @retval EFI_ABORTED EFI IPv4 Protocol driver configuration could not complete.
+ @retval EFI_BUFFER_TOO_SMALL *IpConfigDataSize is smaller than the configuration
+ data buffer or IpConfigData is NULL.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_IP4_CONFIG_GET_DATA)(
+ IN EFI_IP4_CONFIG_PROTOCOL *This,
+ IN OUT UINTN *IpConfigDataSize,
+ OUT EFI_IP4_IPCONFIG_DATA *IpConfigData OPTIONAL
+ );
+
+///
+/// The EFI_IP4_CONFIG_PROTOCOL driver performs platform-dependent and policy-dependent
+/// configurations for the EFI IPv4 Protocol driver.
+///
+struct _EFI_IP4_CONFIG_PROTOCOL {
+ EFI_IP4_CONFIG_START Start;
+ EFI_IP4_CONFIG_STOP Stop;
+ EFI_IP4_CONFIG_GET_DATA GetData;
+};
+
+extern EFI_GUID gEfiIp4ConfigProtocolGuid;
+
+#endif
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