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177 lines
7.6 KiB
C
177 lines
7.6 KiB
C
/** @file
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This file provides a definition of the EFI IPv4 Configuration
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Protocol.
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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@par Revision Reference:
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This Protocol is introduced in UEFI Specification 2.0.
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**/
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#ifndef __EFI_IP4CONFIG_PROTOCOL_H__
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#define __EFI_IP4CONFIG_PROTOCOL_H__
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#include <Protocol/Ip4.h>
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#define EFI_IP4_CONFIG_PROTOCOL_GUID \
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{ \
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0x3b95aa31, 0x3793, 0x434b, {0x86, 0x67, 0xc8, 0x07, 0x08, 0x92, 0xe0, 0x5e } \
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}
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typedef struct _EFI_IP4_CONFIG_PROTOCOL EFI_IP4_CONFIG_PROTOCOL;
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#define IP4_CONFIG_VARIABLE_ATTRIBUTES \
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(EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS)
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///
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/// EFI_IP4_IPCONFIG_DATA contains the minimum IPv4 configuration data
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/// that is needed to start basic network communication. The StationAddress
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/// and SubnetMask must be a valid unicast IP address and subnet mask.
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/// If RouteTableSize is not zero, then RouteTable contains a properly
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/// formatted routing table for the StationAddress/SubnetMask, with the
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/// last entry in the table being the default route.
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///
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typedef struct {
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///
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/// Default station IP address, stored in network byte order.
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///
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EFI_IPv4_ADDRESS StationAddress;
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///
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/// Default subnet mask, stored in network byte order.
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///
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EFI_IPv4_ADDRESS SubnetMask;
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///
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/// Number of entries in the following RouteTable. May be zero.
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///
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UINT32 RouteTableSize;
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///
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/// Default routing table data (stored in network byte order).
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/// Ignored if RouteTableSize is zero.
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///
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EFI_IP4_ROUTE_TABLE *RouteTable;
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} EFI_IP4_IPCONFIG_DATA;
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/**
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Starts running the configuration policy for the EFI IPv4 Protocol driver.
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The Start() function is called to determine and to begin the platform
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configuration policy by the EFI IPv4 Protocol driver. This determination may
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be as simple as returning EFI_UNSUPPORTED if there is no EFI IPv4 Protocol
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driver configuration policy. It may be as involved as loading some defaults
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from nonvolatile storage, downloading dynamic data from a DHCP server, and
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checking permissions with a site policy server.
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Starting the configuration policy is just the beginning. It may finish almost
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instantly or it may take several minutes before it fails to retrieve configuration
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information from one or more servers. Once the policy is started, drivers
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should use the DoneEvent parameter to determine when the configuration policy
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has completed. EFI_IP4_CONFIG_PROTOCOL.GetData() must then be called to
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determine if the configuration succeeded or failed.
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Until the configuration completes successfully, EFI IPv4 Protocol driver instances
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that are attempting to use default configurations must return EFI_NO_MAPPING.
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Once the configuration is complete, the EFI IPv4 Configuration Protocol driver
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signals DoneEvent. The configuration may need to be updated in the future.
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Note that in this case the EFI IPv4 Configuration Protocol driver must signal
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ReconfigEvent, and all EFI IPv4 Protocol driver instances that are using default
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configurations must return EFI_NO_MAPPING until the configuration policy has
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been rerun.
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@param This The pointer to the EFI_IP4_CONFIG_PROTOCOL instance.
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@param DoneEvent Event that will be signaled when the EFI IPv4
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Protocol driver configuration policy completes
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execution. This event must be of type EVT_NOTIFY_SIGNAL.
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@param ReconfigEvent Event that will be signaled when the EFI IPv4
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Protocol driver configuration needs to be updated.
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This event must be of type EVT_NOTIFY_SIGNAL.
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@retval EFI_SUCCESS The configuration policy for the EFI IPv4 Protocol
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driver is now running.
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@retval EFI_INVALID_PARAMETER One or more of the following parameters is NULL:
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This
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DoneEvent
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ReconfigEvent
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@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
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@retval EFI_ALREADY_STARTED The configuration policy for the EFI IPv4 Protocol
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driver was already started.
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@retval EFI_DEVICE_ERROR An unexpected system error or network error occurred.
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@retval EFI_UNSUPPORTED This interface does not support the EFI IPv4 Protocol
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driver configuration.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_IP4_CONFIG_START)(
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IN EFI_IP4_CONFIG_PROTOCOL *This,
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IN EFI_EVENT DoneEvent,
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IN EFI_EVENT ReconfigEvent
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);
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/**
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Stops running the configuration policy for the EFI IPv4 Protocol driver.
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The Stop() function stops the configuration policy for the EFI IPv4 Protocol driver.
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All configuration data will be lost after calling Stop().
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@param This The pointer to the EFI_IP4_CONFIG_PROTOCOL instance.
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@retval EFI_SUCCESS The configuration policy for the EFI IPv4 Protocol
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driver has been stopped.
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@retval EFI_INVALID_PARAMETER This is NULL.
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@retval EFI_NOT_STARTED The configuration policy for the EFI IPv4 Protocol
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driver was not started.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_IP4_CONFIG_STOP)(
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IN EFI_IP4_CONFIG_PROTOCOL *This
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);
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/**
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Returns the default configuration data (if any) for the EFI IPv4 Protocol driver.
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The GetData() function returns the current configuration data for the EFI IPv4
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Protocol driver after the configuration policy has completed.
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@param This The pointer to the EFI_IP4_CONFIG_PROTOCOL instance.
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@param IpConfigDataSize On input, the size of the IpConfigData buffer.
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On output, the count of bytes that were written
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into the IpConfigData buffer.
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@param IpConfigData The pointer to the EFI IPv4 Configuration Protocol
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driver configuration data structure.
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Type EFI_IP4_IPCONFIG_DATA is defined in
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"Related Definitions" below.
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@retval EFI_SUCCESS The EFI IPv4 Protocol driver configuration has been returned.
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@retval EFI_INVALID_PARAMETER This is NULL.
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@retval EFI_NOT_STARTED The configuration policy for the EFI IPv4 Protocol
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driver is not running.
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@retval EFI_NOT_READY EFI IPv4 Protocol driver configuration is still running.
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@retval EFI_ABORTED EFI IPv4 Protocol driver configuration could not complete.
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@retval EFI_BUFFER_TOO_SMALL *IpConfigDataSize is smaller than the configuration
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data buffer or IpConfigData is NULL.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_IP4_CONFIG_GET_DATA)(
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IN EFI_IP4_CONFIG_PROTOCOL *This,
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IN OUT UINTN *IpConfigDataSize,
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OUT EFI_IP4_IPCONFIG_DATA *IpConfigData OPTIONAL
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);
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///
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/// The EFI_IP4_CONFIG_PROTOCOL driver performs platform-dependent and policy-dependent
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/// configurations for the EFI IPv4 Protocol driver.
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///
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struct _EFI_IP4_CONFIG_PROTOCOL {
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EFI_IP4_CONFIG_START Start;
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EFI_IP4_CONFIG_STOP Stop;
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EFI_IP4_CONFIG_GET_DATA GetData;
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};
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extern EFI_GUID gEfiIp4ConfigProtocolGuid;
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#endif
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