1 /** @file
2   EFI Network Interface Identifier Protocol.
3 
4 Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
5 SPDX-License-Identifier: BSD-2-Clause-Patent
6 
7   @par Revision Reference:
8   This Protocol is introduced in EFI Specification 1.10.
9 
10 **/
11 
12 #ifndef __EFI_NETWORK_INTERFACE_IDENTIFER_H__
13 #define __EFI_NETWORK_INTERFACE_IDENTIFER_H__
14 
15 //
16 // GUID retired from UEFI Specification 2.1b
17 //
18 #define EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL_GUID \
19   { \
20     0xE18541CD, 0xF755, 0x4f73, {0x92, 0x8D, 0x64, 0x3C, 0x8A, 0x79, 0xB2, 0x29 } \
21   }
22 
23 //
24 // GUID intruduced in UEFI Specification 2.1b
25 //
26 #define EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL_GUID_31 \
27   { \
28     0x1ACED566, 0x76ED, 0x4218, {0xBC, 0x81, 0x76, 0x7F, 0x1F, 0x97, 0x7A, 0x89 } \
29   }
30 
31 //
32 // Revision defined in UEFI Specification 2.4
33 //
34 #define EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL_REVISION  0x00020000
35 
36 ///
37 /// Revision defined in EFI1.1.
38 ///
39 #define EFI_NETWORK_INTERFACE_IDENTIFIER_INTERFACE_REVISION  EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL_REVISION
40 
41 ///
42 /// Forward reference for pure ANSI compatability.
43 ///
44 typedef struct _EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL;
45 
46 ///
47 /// Protocol defined in EFI1.1.
48 ///
49 typedef EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL EFI_NETWORK_INTERFACE_IDENTIFIER_INTERFACE;
50 
51 ///
52 /// An optional protocol that is used to describe details about the software
53 /// layer that is used to produce the Simple Network Protocol.
54 ///
55 struct _EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL {
56   UINT64     Revision;      ///< The revision of the EFI_NETWORK_INTERFACE_IDENTIFIER protocol.
57   UINT64     Id;            ///< The address of the first byte of the identifying structure for this network
58                             ///< interface. This is only valid when the network interface is started
59                             ///< (see Start()). When the network interface is not started, this field is set to zero.
60   UINT64     ImageAddr;     ///< The address of the first byte of the identifying structure for this
61                             ///< network interface.  This is set to zero if there is no structure.
62   UINT32     ImageSize;     ///< The size of unrelocated network interface image.
63   CHAR8      StringId[4];   ///< A four-character ASCII string that is sent in the class identifier field of
64                             ///< option 60 in DHCP. For a Type of EfiNetworkInterfaceUndi, this field is UNDI.
65   UINT8      Type;          ///< Network interface type. This will be set to one of the values
66                             ///< in EFI_NETWORK_INTERFACE_TYPE.
67   UINT8      MajorVer;      ///< Major version number.
68   UINT8      MinorVer;      ///< Minor version number.
69   BOOLEAN    Ipv6Supported; ///< TRUE if the network interface supports IPv6; otherwise FALSE.
70   UINT16     IfNum;         ///< The network interface number that is being identified by this Network
71                             ///< Interface Identifier Protocol. This field must be less than or
72                             ///< equal to the (IFcnt | IFcntExt <<8 ) fields in the !PXE structure.
73 };
74 
75 ///
76 /// *******************************************************
77 /// EFI_NETWORK_INTERFACE_TYPE
78 /// *******************************************************
79 ///
80 typedef enum {
81   EfiNetworkInterfaceUndi = 1
82 } EFI_NETWORK_INTERFACE_TYPE;
83 
84 ///
85 /// Forward reference for pure ANSI compatability.
86 ///
87 typedef struct undiconfig_table UNDI_CONFIG_TABLE;
88 
89 ///
90 /// The format of the configuration table for UNDI
91 ///
92 struct undiconfig_table {
93   UINT32               NumberOfInterfaces;  ///< The number of NIC devices
94                                             ///< that this UNDI controls.
95   UINT32               reserved;
96   UNDI_CONFIG_TABLE    *nextlink;           ///< A pointer to the next UNDI
97                                             ///< configuration table.
98   ///
99   /// The length of this array is given in the NumberOfInterfaces field.
100   ///
101   struct {
102     VOID    *NII_InterfacePointer;          ///< Pointer to the NII interface structure.
103     VOID    *DevicePathPointer;             ///< Pointer to the device path for this NIC.
104   } NII_entry[1];
105 };
106 
107 extern EFI_GUID  gEfiNetworkInterfaceIdentifierProtocolGuid;
108 extern EFI_GUID  gEfiNetworkInterfaceIdentifierProtocolGuid_31;
109 
110 #endif
111