MdePkg/Include/Protocol/NetworkInterfaceIdentifier.h

/** @file
  EFI Network Interface Identifier Protocol.

Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent

  @par Revision Reference:
  This Protocol is introduced in EFI Specification 1.10.

**/

#ifndef __EFI_NETWORK_INTERFACE_IDENTIFER_H__
#define __EFI_NETWORK_INTERFACE_IDENTIFER_H__

//
// GUID retired from UEFI Specification 2.1b
//
#define EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL_GUID \
  { \
    0xE18541CD, 0xF755, 0x4f73, {0x92, 0x8D, 0x64, 0x3C, 0x8A, 0x79, 0xB2, 0x29 } \
  }

//
// GUID intruduced in UEFI Specification 2.1b
//
#define EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL_GUID_31 \
  { \
    0x1ACED566, 0x76ED, 0x4218, {0xBC, 0x81, 0x76, 0x7F, 0x1F, 0x97, 0x7A, 0x89 } \
  }

//
// Revision defined in UEFI Specification 2.4
//
#define EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL_REVISION  0x00020000

///
/// Revision defined in EFI1.1.
///
#define EFI_NETWORK_INTERFACE_IDENTIFIER_INTERFACE_REVISION  EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL_REVISION

///
/// Forward reference for pure ANSI compatability.
///
typedef struct _EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL;

///
/// Protocol defined in EFI1.1.
///
typedef EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL EFI_NETWORK_INTERFACE_IDENTIFIER_INTERFACE;

///
/// An optional protocol that is used to describe details about the software
/// layer that is used to produce the Simple Network Protocol.
///
struct _EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL {
  UINT64     Revision;      ///< The revision of the EFI_NETWORK_INTERFACE_IDENTIFIER protocol.
  UINT64     Id;            ///< The address of the first byte of the identifying structure for this network
                            ///< interface. This is only valid when the network interface is started
                            ///< (see Start()). When the network interface is not started, this field is set to zero.
  UINT64     ImageAddr;     ///< The address of the first byte of the identifying structure for this
                            ///< network interface.  This is set to zero if there is no structure.
  UINT32     ImageSize;     ///< The size of unrelocated network interface image.
  CHAR8      StringId[4];   ///< A four-character ASCII string that is sent in the class identifier field of
                            ///< option 60 in DHCP. For a Type of EfiNetworkInterfaceUndi, this field is UNDI.
  UINT8      Type;          ///< Network interface type. This will be set to one of the values
                            ///< in EFI_NETWORK_INTERFACE_TYPE.
  UINT8      MajorVer;      ///< Major version number.
  UINT8      MinorVer;      ///< Minor version number.
  BOOLEAN    Ipv6Supported; ///< TRUE if the network interface supports IPv6; otherwise FALSE.
  UINT16     IfNum;         ///< The network interface number that is being identified by this Network
                            ///< Interface Identifier Protocol. This field must be less than or
                            ///< equal to the (IFcnt | IFcntExt <<8 ) fields in the !PXE structure.
};

///
/// *******************************************************
/// EFI_NETWORK_INTERFACE_TYPE
/// *******************************************************
///
typedef enum {
  EfiNetworkInterfaceUndi = 1
} EFI_NETWORK_INTERFACE_TYPE;

///
/// Forward reference for pure ANSI compatability.
///
typedef struct undiconfig_table UNDI_CONFIG_TABLE;

///
/// The format of the configuration table for UNDI
///
struct undiconfig_table {
  UINT32               NumberOfInterfaces;  ///< The number of NIC devices
                                            ///< that this UNDI controls.
  UINT32               reserved;
  UNDI_CONFIG_TABLE    *nextlink;           ///< A pointer to the next UNDI
                                            ///< configuration table.
  ///
  /// The length of this array is given in the NumberOfInterfaces field.
  ///
  struct {
    VOID    *NII_InterfacePointer;          ///< Pointer to the NII interface structure.
    VOID    *DevicePathPointer;             ///< Pointer to the device path for this NIC.
  } NII_entry[1];
};

extern EFI_GUID  gEfiNetworkInterfaceIdentifierProtocolGuid;
extern EFI_GUID  gEfiNetworkInterfaceIdentifierProtocolGuid_31;

#endif