2 This file provides a definition of the EFI IPv4 Configuration
5 Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
6 This program and the accompanying materials are licensed and made available under
7 the terms and conditions of the BSD License that accompanies this distribution.
8 The full text of the license may be found at
9 http://opensource.org/licenses/bsd-license.php.
11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
14 @par Revision Reference:
15 This Protocol is introduced in UEFI Specification 2.0.
18 #ifndef __EFI_IP4CONFIG_PROTOCOL_H__
19 #define __EFI_IP4CONFIG_PROTOCOL_H__
21 FILE_LICENCE ( BSD3 );
23 #include <ipxe/efi/Protocol/Ip4.h>
25 #define EFI_IP4_CONFIG_PROTOCOL_GUID \
27 0x3b95aa31, 0x3793, 0x434b, {0x86, 0x67, 0xc8, 0x07, 0x08, 0x92, 0xe0, 0x5e } \
30 typedef struct _EFI_IP4_CONFIG_PROTOCOL EFI_IP4_CONFIG_PROTOCOL;
32 #define IP4_CONFIG_VARIABLE_ATTRIBUTES \
33 (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS)
36 /// EFI_IP4_IPCONFIG_DATA contains the minimum IPv4 configuration data
37 /// that is needed to start basic network communication. The StationAddress
38 /// and SubnetMask must be a valid unicast IP address and subnet mask.
39 /// If RouteTableSize is not zero, then RouteTable contains a properly
40 /// formatted routing table for the StationAddress/SubnetMask, with the
41 /// last entry in the table being the default route.
45 /// Default station IP address, stored in network byte order.
47 EFI_IPv4_ADDRESS StationAddress;
49 /// Default subnet mask, stored in network byte order.
51 EFI_IPv4_ADDRESS SubnetMask;
53 /// Number of entries in the following RouteTable. May be zero.
55 UINT32 RouteTableSize;
57 /// Default routing table data (stored in network byte order).
58 /// Ignored if RouteTableSize is zero.
60 EFI_IP4_ROUTE_TABLE *RouteTable;
61 } EFI_IP4_IPCONFIG_DATA;
65 Starts running the configuration policy for the EFI IPv4 Protocol driver.
67 The Start() function is called to determine and to begin the platform
68 configuration policy by the EFI IPv4 Protocol driver. This determination may
69 be as simple as returning EFI_UNSUPPORTED if there is no EFI IPv4 Protocol
70 driver configuration policy. It may be as involved as loading some defaults
71 from nonvolatile storage, downloading dynamic data from a DHCP server, and
72 checking permissions with a site policy server.
73 Starting the configuration policy is just the beginning. It may finish almost
74 instantly or it may take several minutes before it fails to retrieve configuration
75 information from one or more servers. Once the policy is started, drivers
76 should use the DoneEvent parameter to determine when the configuration policy
77 has completed. EFI_IP4_CONFIG_PROTOCOL.GetData() must then be called to
78 determine if the configuration succeeded or failed.
79 Until the configuration completes successfully, EFI IPv4 Protocol driver instances
80 that are attempting to use default configurations must return EFI_NO_MAPPING.
81 Once the configuration is complete, the EFI IPv4 Configuration Protocol driver
82 signals DoneEvent. The configuration may need to be updated in the future.
83 Note that in this case the EFI IPv4 Configuration Protocol driver must signal
84 ReconfigEvent, and all EFI IPv4 Protocol driver instances that are using default
85 configurations must return EFI_NO_MAPPING until the configuration policy has
88 @param This The pointer to the EFI_IP4_CONFIG_PROTOCOL instance.
89 @param DoneEvent Event that will be signaled when the EFI IPv4
90 Protocol driver configuration policy completes
91 execution. This event must be of type EVT_NOTIFY_SIGNAL.
92 @param ReconfigEvent Event that will be signaled when the EFI IPv4
93 Protocol driver configuration needs to be updated.
94 This event must be of type EVT_NOTIFY_SIGNAL.
96 @retval EFI_SUCCESS The configuration policy for the EFI IPv4 Protocol
97 driver is now running.
98 @retval EFI_INVALID_PARAMETER One or more of the following parameters is NULL:
102 @retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
103 @retval EFI_ALREADY_STARTED The configuration policy for the EFI IPv4 Protocol
104 driver was already started.
105 @retval EFI_DEVICE_ERROR An unexpected system error or network error occurred.
106 @retval EFI_UNSUPPORTED This interface does not support the EFI IPv4 Protocol
107 driver configuration.
112 (EFIAPI *EFI_IP4_CONFIG_START)(
113 IN EFI_IP4_CONFIG_PROTOCOL *This,
114 IN EFI_EVENT DoneEvent,
115 IN EFI_EVENT ReconfigEvent
119 Stops running the configuration policy for the EFI IPv4 Protocol driver.
121 The Stop() function stops the configuration policy for the EFI IPv4 Protocol driver.
122 All configuration data will be lost after calling Stop().
124 @param This The pointer to the EFI_IP4_CONFIG_PROTOCOL instance.
126 @retval EFI_SUCCESS The configuration policy for the EFI IPv4 Protocol
127 driver has been stopped.
128 @retval EFI_INVALID_PARAMETER This is NULL.
129 @retval EFI_NOT_STARTED The configuration policy for the EFI IPv4 Protocol
130 driver was not started.
135 (EFIAPI *EFI_IP4_CONFIG_STOP)(
136 IN EFI_IP4_CONFIG_PROTOCOL *This
140 Returns the default configuration data (if any) for the EFI IPv4 Protocol driver.
142 The GetData() function returns the current configuration data for the EFI IPv4
143 Protocol driver after the configuration policy has completed.
145 @param This The pointer to the EFI_IP4_CONFIG_PROTOCOL instance.
146 @param IpConfigDataSize On input, the size of the IpConfigData buffer.
147 On output, the count of bytes that were written
148 into the IpConfigData buffer.
149 @param IpConfigData The pointer to the EFI IPv4 Configuration Protocol
150 driver configuration data structure.
151 Type EFI_IP4_IPCONFIG_DATA is defined in
152 "Related Definitions" below.
154 @retval EFI_SUCCESS The EFI IPv4 Protocol driver configuration has been returned.
155 @retval EFI_INVALID_PARAMETER This is NULL.
156 @retval EFI_NOT_STARTED The configuration policy for the EFI IPv4 Protocol
157 driver is not running.
158 @retval EFI_NOT_READY EFI IPv4 Protocol driver configuration is still running.
159 @retval EFI_ABORTED EFI IPv4 Protocol driver configuration could not complete.
160 @retval EFI_BUFFER_TOO_SMALL *IpConfigDataSize is smaller than the configuration
161 data buffer or IpConfigData is NULL.
166 (EFIAPI *EFI_IP4_CONFIG_GET_DATA)(
167 IN EFI_IP4_CONFIG_PROTOCOL *This,
168 IN OUT UINTN *IpConfigDataSize,
169 OUT EFI_IP4_IPCONFIG_DATA *IpConfigData OPTIONAL
173 /// The EFI_IP4_CONFIG_PROTOCOL driver performs platform-dependent and policy-dependent
174 /// configurations for the EFI IPv4 Protocol driver.
176 struct _EFI_IP4_CONFIG_PROTOCOL {
177 EFI_IP4_CONFIG_START Start;
178 EFI_IP4_CONFIG_STOP Stop;
179 EFI_IP4_CONFIG_GET_DATA GetData;
182 extern EFI_GUID gEfiIp4ConfigProtocolGuid;