REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3737 Apply uncrustify changes to .c/.h files in the MdePkg package Cc: Andrew Fish <afish@apple.com> Cc: Leif Lindholm <leif@nuviainc.com> Cc: Michael D Kinney <michael.d.kinney@intel.com> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
		
			
				
	
	
		
			603 lines
		
	
	
		
			25 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			603 lines
		
	
	
		
			25 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /** @file
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|   This file defines the EFI IPv4 (Internet Protocol version 4)
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|   Protocol interface. It is split into the following three main
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|   sections:
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|   - EFI IPv4 Service Binding Protocol
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|   - EFI IPv4 Variable (deprecated in UEFI 2.4B)
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|   - EFI IPv4 Protocol.
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|   The EFI IPv4 Protocol provides basic network IPv4 packet I/O services,
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|   which includes support foR a subset of the Internet Control Message
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|   Protocol (ICMP) and may include support for the Internet Group Management
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|   Protocol (IGMP).
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| 
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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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| 
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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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| **/
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| 
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| #ifndef __EFI_IP4_PROTOCOL_H__
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| #define __EFI_IP4_PROTOCOL_H__
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| 
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| #include <Protocol/ManagedNetwork.h>
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| 
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| #define EFI_IP4_SERVICE_BINDING_PROTOCOL_GUID \
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|   { \
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|     0xc51711e7, 0xb4bf, 0x404a, {0xbf, 0xb8, 0x0a, 0x04, 0x8e, 0xf1, 0xff, 0xe4 } \
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|   }
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| 
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| #define EFI_IP4_PROTOCOL_GUID \
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|   { \
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|     0x41d94cd2, 0x35b6, 0x455a, {0x82, 0x58, 0xd4, 0xe5, 0x13, 0x34, 0xaa, 0xdd } \
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|   }
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| 
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| typedef struct _EFI_IP4_PROTOCOL EFI_IP4_PROTOCOL;
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| 
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| ///
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| /// EFI_IP4_ADDRESS_PAIR is deprecated in the UEFI 2.4B and should not be used any more.
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| /// The definition in here is only present to provide backwards compatability.
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| ///
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| typedef struct {
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|   EFI_HANDLE          InstanceHandle;
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|   EFI_IPv4_ADDRESS    Ip4Address;
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|   EFI_IPv4_ADDRESS    SubnetMask;
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| } EFI_IP4_ADDRESS_PAIR;
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| 
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| ///
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| /// EFI_IP4_VARIABLE_DATA is deprecated in the UEFI 2.4B and should not be used any more.
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| /// The definition in here is only present to provide backwards compatability.
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| ///
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| typedef struct {
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|   EFI_HANDLE              DriverHandle;
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|   UINT32                  AddressCount;
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|   EFI_IP4_ADDRESS_PAIR    AddressPairs[1];
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| } EFI_IP4_VARIABLE_DATA;
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| 
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| typedef struct {
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|   ///
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|   /// The default IPv4 protocol packets to send and receive. Ignored
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|   /// when AcceptPromiscuous is TRUE.
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|   ///
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|   UINT8               DefaultProtocol;
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|   ///
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|   /// Set to TRUE to receive all IPv4 packets that get through the receive filters.
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|   /// Set to FALSE to receive only the DefaultProtocol IPv4
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|   /// packets that get through the receive filters.
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|   ///
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|   BOOLEAN             AcceptAnyProtocol;
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|   ///
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|   /// Set to TRUE to receive ICMP error report packets. Ignored when
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|   /// AcceptPromiscuous or AcceptAnyProtocol is TRUE.
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|   ///
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|   BOOLEAN             AcceptIcmpErrors;
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|   ///
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|   /// Set to TRUE to receive broadcast IPv4 packets. Ignored when
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|   /// AcceptPromiscuous is TRUE.
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|   /// Set to FALSE to stop receiving broadcast IPv4 packets.
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|   ///
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|   BOOLEAN             AcceptBroadcast;
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|   ///
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|   /// Set to TRUE to receive all IPv4 packets that are sent to any
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|   /// hardware address or any protocol address.
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|   /// Set to FALSE to stop receiving all promiscuous IPv4 packets
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|   ///
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|   BOOLEAN             AcceptPromiscuous;
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|   ///
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|   /// Set to TRUE to use the default IPv4 address and default routing table.
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|   ///
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|   BOOLEAN             UseDefaultAddress;
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|   ///
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|   /// The station IPv4 address that will be assigned to this EFI IPv4Protocol instance.
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|   ///
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|   EFI_IPv4_ADDRESS    StationAddress;
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|   ///
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|   /// The subnet address mask that is associated with the station address.
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|   ///
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|   EFI_IPv4_ADDRESS    SubnetMask;
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|   ///
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|   /// TypeOfService field in transmitted IPv4 packets.
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|   ///
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|   UINT8               TypeOfService;
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|   ///
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|   /// TimeToLive field in transmitted IPv4 packets.
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|   ///
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|   UINT8               TimeToLive;
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|   ///
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|   /// State of the DoNotFragment bit in transmitted IPv4 packets.
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|   ///
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|   BOOLEAN             DoNotFragment;
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|   ///
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|   /// Set to TRUE to send and receive unformatted packets. The other
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|   /// IPv4 receive filters are still applied. Fragmentation is disabled for RawData mode.
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|   ///
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|   BOOLEAN             RawData;
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|   ///
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|   /// The timer timeout value (number of microseconds) for the
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|   /// receive timeout event to be associated with each assembled
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|   /// packet. Zero means do not drop assembled packets.
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|   ///
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|   UINT32              ReceiveTimeout;
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|   ///
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|   /// The timer timeout value (number of microseconds) for the
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|   /// transmit timeout event to be associated with each outgoing
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|   /// packet. Zero means do not drop outgoing packets.
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|   ///
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|   UINT32              TransmitTimeout;
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| } EFI_IP4_CONFIG_DATA;
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| 
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| typedef struct {
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|   EFI_IPv4_ADDRESS    SubnetAddress;
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|   EFI_IPv4_ADDRESS    SubnetMask;
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|   EFI_IPv4_ADDRESS    GatewayAddress;
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| } EFI_IP4_ROUTE_TABLE;
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| 
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| typedef struct {
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|   UINT8    Type;
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|   UINT8    Code;
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| } EFI_IP4_ICMP_TYPE;
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| 
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| typedef struct {
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|   ///
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|   /// Set to TRUE after this EFI IPv4 Protocol instance has been successfully configured.
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|   ///
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|   BOOLEAN                IsStarted;
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|   ///
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|   /// The maximum packet size, in bytes, of the packet which the upper layer driver could feed.
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|   ///
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|   UINT32                 MaxPacketSize;
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|   ///
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|   /// Current configuration settings.
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|   ///
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|   EFI_IP4_CONFIG_DATA    ConfigData;
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|   ///
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|   /// Set to TRUE when the EFI IPv4 Protocol instance has a station address and subnet mask.
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|   ///
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|   BOOLEAN                IsConfigured;
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|   ///
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|   /// Number of joined multicast groups.
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|   ///
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|   UINT32                 GroupCount;
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|   ///
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|   /// List of joined multicast group addresses.
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|   ///
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|   EFI_IPv4_ADDRESS       *GroupTable;
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|   ///
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|   /// Number of entries in the routing table.
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|   ///
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|   UINT32                 RouteCount;
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|   ///
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|   /// Routing table entries.
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|   ///
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|   EFI_IP4_ROUTE_TABLE    *RouteTable;
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|   ///
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|   /// Number of entries in the supported ICMP types list.
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|   ///
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|   UINT32                 IcmpTypeCount;
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|   ///
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|   /// Array of ICMP types and codes that are supported by this EFI IPv4 Protocol driver
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|   ///
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|   EFI_IP4_ICMP_TYPE      *IcmpTypeList;
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| } EFI_IP4_MODE_DATA;
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| 
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| #pragma pack(1)
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| 
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| typedef struct {
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|   UINT8               HeaderLength : 4;
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|   UINT8               Version      : 4;
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|   UINT8               TypeOfService;
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|   UINT16              TotalLength;
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|   UINT16              Identification;
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|   UINT16              Fragmentation;
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|   UINT8               TimeToLive;
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|   UINT8               Protocol;
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|   UINT16              Checksum;
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|   EFI_IPv4_ADDRESS    SourceAddress;
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|   EFI_IPv4_ADDRESS    DestinationAddress;
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| } EFI_IP4_HEADER;
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| #pragma pack()
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| 
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| typedef struct {
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|   UINT32    FragmentLength;
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|   VOID      *FragmentBuffer;
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| } EFI_IP4_FRAGMENT_DATA;
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| 
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| typedef struct {
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|   EFI_TIME                 TimeStamp;
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|   EFI_EVENT                RecycleSignal;
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|   UINT32                   HeaderLength;
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|   EFI_IP4_HEADER           *Header;
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|   UINT32                   OptionsLength;
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|   VOID                     *Options;
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|   UINT32                   DataLength;
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|   UINT32                   FragmentCount;
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|   EFI_IP4_FRAGMENT_DATA    FragmentTable[1];
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| } EFI_IP4_RECEIVE_DATA;
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| 
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| typedef struct {
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|   EFI_IPv4_ADDRESS    SourceAddress;
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|   EFI_IPv4_ADDRESS    GatewayAddress;
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|   UINT8               Protocol;
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|   UINT8               TypeOfService;
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|   UINT8               TimeToLive;
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|   BOOLEAN             DoNotFragment;
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| } EFI_IP4_OVERRIDE_DATA;
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| 
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| typedef struct {
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|   EFI_IPv4_ADDRESS         DestinationAddress;
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|   EFI_IP4_OVERRIDE_DATA    *OverrideData;    // OPTIONAL
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|   UINT32                   OptionsLength;    // OPTIONAL
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|   VOID                     *OptionsBuffer;   // OPTIONAL
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|   UINT32                   TotalDataLength;
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|   UINT32                   FragmentCount;
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|   EFI_IP4_FRAGMENT_DATA    FragmentTable[1];
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| } EFI_IP4_TRANSMIT_DATA;
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| 
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| typedef struct {
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|   ///
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|   /// This Event will be signaled after the Status field is updated
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|   /// by the EFI IPv4 Protocol driver. The type of Event must be
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|   /// EFI_NOTIFY_SIGNAL. The Task Priority Level (TPL) of
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|   /// Event must be lower than or equal to TPL_CALLBACK.
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|   ///
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|   EFI_EVENT     Event;
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|   ///
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|   /// The status that is returned to the caller at the end of the operation
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|   /// to indicate whether this operation completed successfully.
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|   ///
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|   EFI_STATUS    Status;
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|   union {
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|     ///
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|     /// When this token is used for receiving, RxData is a pointer to the EFI_IP4_RECEIVE_DATA.
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|     ///
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|     EFI_IP4_RECEIVE_DATA     *RxData;
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|     ///
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|     /// When this token is used for transmitting, TxData is a pointer to the EFI_IP4_TRANSMIT_DATA.
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|     ///
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|     EFI_IP4_TRANSMIT_DATA    *TxData;
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|   } Packet;
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| } EFI_IP4_COMPLETION_TOKEN;
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| 
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| /**
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|   Gets the current operational settings for this instance of the EFI IPv4 Protocol driver.
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| 
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|   The GetModeData() function returns the current operational mode data for this
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|   driver instance. The data fields in EFI_IP4_MODE_DATA are read only. This
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|   function is used optionally to retrieve the operational mode data of underlying
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|   networks or drivers.
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| 
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|   @param  This          The pointer to the EFI_IP4_PROTOCOL instance.
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|   @param  Ip4ModeData   The pointer to the EFI IPv4 Protocol mode data structure.
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|   @param  MnpConfigData The pointer to the managed network configuration data structure.
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|   @param  SnpModeData   The pointer to the simple network mode data structure.
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| 
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|   @retval EFI_SUCCESS           The operation completed successfully.
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|   @retval EFI_INVALID_PARAMETER This is NULL.
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|   @retval EFI_OUT_OF_RESOURCES  The required mode data could not be allocated.
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| 
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| **/
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| typedef
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| EFI_STATUS
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| (EFIAPI *EFI_IP4_GET_MODE_DATA)(
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|   IN CONST  EFI_IP4_PROTOCOL                *This,
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|   OUT       EFI_IP4_MODE_DATA               *Ip4ModeData     OPTIONAL,
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|   OUT       EFI_MANAGED_NETWORK_CONFIG_DATA *MnpConfigData   OPTIONAL,
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|   OUT       EFI_SIMPLE_NETWORK_MODE         *SnpModeData     OPTIONAL
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|   );
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| 
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| /**
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|   Assigns an IPv4 address and subnet mask to this EFI IPv4 Protocol driver instance.
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| 
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|   The Configure() function is used to set, change, or reset the operational
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|   parameters and filter settings for this EFI IPv4 Protocol instance. Until these
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|   parameters have been set, no network traffic can be sent or received by this
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|   instance. Once the parameters have been reset (by calling this function with
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|   IpConfigData set to NULL), no more traffic can be sent or received until these
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|   parameters have been set again. Each EFI IPv4 Protocol instance can be started
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|   and stopped independently of each other by enabling or disabling their receive
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|   filter settings with the Configure() function.
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| 
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|   When IpConfigData.UseDefaultAddress is set to FALSE, the new station address will
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|   be appended as an alias address into the addresses list in the EFI IPv4 Protocol
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|   driver. While set to TRUE, Configure() will trigger the EFI_IP4_CONFIG_PROTOCOL
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|   to retrieve the default IPv4 address if it is not available yet. Clients could
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|   frequently call GetModeData() to check the status to ensure that the default IPv4
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|   address is ready.
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| 
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|   If operational parameters are reset or changed, any pending transmit and receive
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|   requests will be cancelled. Their completion token status will be set to EFI_ABORTED
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|   and their events will be signaled.
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| 
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|   @param  This         The pointer to the EFI_IP4_PROTOCOL instance.
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|   @param  IpConfigData The pointer to the EFI IPv4 Protocol configuration data structure.
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| 
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|   @retval EFI_SUCCESS           The driver instance was successfully opened.
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|   @retval EFI_NO_MAPPING        When using the default address, configuration (DHCP, BOOTP,
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|                                 RARP, etc.) is not finished yet.
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|   @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
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|                                 This is NULL.
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|                                 IpConfigData.StationAddress is not a unicast IPv4 address.
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|                                 IpConfigData.SubnetMask is not a valid IPv4 subnet
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|   @retval EFI_UNSUPPORTED       One or more of the following conditions is TRUE:
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|                                 A configuration protocol (DHCP, BOOTP, RARP, etc.) could
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|                                 not be located when clients choose to use the default IPv4
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|                                 address. This EFI IPv4 Protocol implementation does not
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|                                 support this requested filter or timeout setting.
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|   @retval EFI_OUT_OF_RESOURCES  The EFI IPv4 Protocol driver instance data could not be allocated.
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|   @retval EFI_ALREADY_STARTED   The interface is already open and must be stopped before the
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|                                 IPv4 address or subnet mask can be changed. The interface must
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|                                 also be stopped when switching to/from raw packet mode.
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|   @retval EFI_DEVICE_ERROR      An unexpected system or network error occurred. The EFI IPv4
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|                                 Protocol driver instance is not opened.
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| 
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| **/
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| typedef
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| EFI_STATUS
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| (EFIAPI *EFI_IP4_CONFIGURE)(
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|   IN EFI_IP4_PROTOCOL    *This,
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|   IN EFI_IP4_CONFIG_DATA *IpConfigData     OPTIONAL
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|   );
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| 
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| /**
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|   Joins and leaves multicast groups.
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| 
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|   The Groups() function is used to join and leave multicast group sessions. Joining
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|   a group will enable reception of matching multicast packets. Leaving a group will
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|   disable the multicast packet reception.
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| 
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|   If JoinFlag is FALSE and GroupAddress is NULL, all joined groups will be left.
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| 
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|   @param  This                  The pointer to the EFI_IP4_PROTOCOL instance.
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|   @param  JoinFlag              Set to TRUE to join the multicast group session and FALSE to leave.
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|   @param  GroupAddress          The pointer to the IPv4 multicast address.
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| 
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|   @retval EFI_SUCCESS           The operation completed successfully.
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|   @retval EFI_INVALID_PARAMETER One or more of the following is TRUE:
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|                                 - This is NULL.
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|                                 - JoinFlag is TRUE and GroupAddress is NULL.
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|                                 - GroupAddress is not NULL and *GroupAddress is
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|                                   not a multicast IPv4 address.
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|   @retval EFI_NOT_STARTED       This instance has not been started.
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|   @retval EFI_NO_MAPPING        When using the default address, configuration (DHCP, BOOTP,
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|                                 RARP, etc.) is not finished yet.
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|   @retval EFI_OUT_OF_RESOURCES  System resources could not be allocated.
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|   @retval EFI_UNSUPPORTED       This EFI IPv4 Protocol implementation does not support multicast groups.
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|   @retval EFI_ALREADY_STARTED   The group address is already in the group table (when
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|                                 JoinFlag is TRUE).
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|   @retval EFI_NOT_FOUND         The group address is not in the group table (when JoinFlag is FALSE).
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|   @retval EFI_DEVICE_ERROR      An unexpected system or network error occurred.
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| 
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| **/
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| typedef
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| EFI_STATUS
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| (EFIAPI *EFI_IP4_GROUPS)(
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|   IN EFI_IP4_PROTOCOL    *This,
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|   IN BOOLEAN             JoinFlag,
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|   IN EFI_IPv4_ADDRESS    *GroupAddress  OPTIONAL
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|   );
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| 
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| /**
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|   Adds and deletes routing table entries.
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| 
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|   The Routes() function adds a route to or deletes a route from the routing table.
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| 
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|   Routes are determined by comparing the SubnetAddress with the destination IPv4
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|   address arithmetically AND-ed with the SubnetMask. The gateway address must be
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|   on the same subnet as the configured station address.
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| 
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|   The default route is added with SubnetAddress and SubnetMask both set to 0.0.0.0.
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|   The default route matches all destination IPv4 addresses that do not match any
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|   other routes.
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| 
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|   A GatewayAddress that is zero is a nonroute. Packets are sent to the destination
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|   IP address if it can be found in the ARP cache or on the local subnet. One automatic
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|   nonroute entry will be inserted into the routing table for outgoing packets that
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|   are addressed to a local subnet (gateway address of 0.0.0.0).
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| 
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|   Each EFI IPv4 Protocol instance has its own independent routing table. Those EFI
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|   IPv4 Protocol instances that use the default IPv4 address will also have copies
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|   of the routing table that was provided by the EFI_IP4_CONFIG_PROTOCOL, and these
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|   copies will be updated whenever the EIF IPv4 Protocol driver reconfigures its
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|   instances. As a result, client modification to the routing table will be lost.
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| 
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|   @param  This                   The pointer to the EFI_IP4_PROTOCOL instance.
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|   @param  DeleteRoute            Set to TRUE to delete this route from the routing table. Set to
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|                                  FALSE to add this route to the routing table. SubnetAddress
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|                                  and SubnetMask are used as the key to each route entry.
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|   @param  SubnetAddress          The address of the subnet that needs to be routed.
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|   @param  SubnetMask             The subnet mask of SubnetAddress.
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|   @param  GatewayAddress         The unicast gateway IPv4 address for this route.
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| 
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|   @retval EFI_SUCCESS            The operation completed successfully.
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|   @retval EFI_NOT_STARTED        The driver instance has not been started.
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|   @retval EFI_NO_MAPPING         When using the default address, configuration (DHCP, BOOTP,
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|                                  RARP, etc.) is not finished yet.
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|   @retval EFI_INVALID_PARAMETER  One or more of the following conditions is TRUE:
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|                                  - This is NULL.
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|                                  - SubnetAddress is NULL.
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|                                  - SubnetMask is NULL.
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|                                  - GatewayAddress is NULL.
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|                                  - *SubnetAddress is not a valid subnet address.
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|                                  - *SubnetMask is not a valid subnet mask.
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|                                  - *GatewayAddress is not a valid unicast IPv4 address.
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|   @retval EFI_OUT_OF_RESOURCES   Could not add the entry to the routing table.
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|   @retval EFI_NOT_FOUND          This route is not in the routing table (when DeleteRoute is TRUE).
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|   @retval EFI_ACCESS_DENIED      The route is already defined in the routing table (when
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|                                  DeleteRoute is FALSE).
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| 
 | |
| **/
 | |
| typedef
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| EFI_STATUS
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| (EFIAPI *EFI_IP4_ROUTES)(
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|   IN EFI_IP4_PROTOCOL    *This,
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|   IN BOOLEAN             DeleteRoute,
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|   IN EFI_IPv4_ADDRESS    *SubnetAddress,
 | |
|   IN EFI_IPv4_ADDRESS    *SubnetMask,
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|   IN EFI_IPv4_ADDRESS    *GatewayAddress
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|   );
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| 
 | |
| /**
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|   Places outgoing data packets into the transmit queue.
 | |
| 
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|   The Transmit() function places a sending request in the transmit queue of this
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|   EFI IPv4 Protocol instance. Whenever the packet in the token is sent out or some
 | |
|   errors occur, the event in the token will be signaled and the status is updated.
 | |
| 
 | |
|   @param  This  The pointer to the EFI_IP4_PROTOCOL instance.
 | |
|   @param  Token The pointer to the transmit token.
 | |
| 
 | |
|   @retval  EFI_SUCCESS           The data has been queued for transmission.
 | |
|   @retval  EFI_NOT_STARTED       This instance has not been started.
 | |
|   @retval  EFI_NO_MAPPING        When using the default address, configuration (DHCP, BOOTP,
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|                                  RARP, etc.) is not finished yet.
 | |
|   @retval  EFI_INVALID_PARAMETER One or more pameters are invalid.
 | |
|   @retval  EFI_ACCESS_DENIED     The transmit completion token with the same Token.Event
 | |
|                                  was already in the transmit queue.
 | |
|   @retval  EFI_NOT_READY         The completion token could not be queued because the transmit
 | |
|                                  queue is full.
 | |
|   @retval  EFI_NOT_FOUND         Not route is found to destination address.
 | |
|   @retval  EFI_OUT_OF_RESOURCES  Could not queue the transmit data.
 | |
|   @retval  EFI_BUFFER_TOO_SMALL  Token.Packet.TxData.TotalDataLength is too
 | |
|                                  short to transmit.
 | |
|   @retval  EFI_BAD_BUFFER_SIZE   The length of the IPv4 header + option length + total data length is
 | |
|                                  greater than MTU (or greater than the maximum packet size if
 | |
|                                  Token.Packet.TxData.OverrideData.
 | |
|                                  DoNotFragment is TRUE.)
 | |
| 
 | |
| **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (EFIAPI *EFI_IP4_TRANSMIT)(
 | |
|   IN EFI_IP4_PROTOCOL          *This,
 | |
|   IN EFI_IP4_COMPLETION_TOKEN  *Token
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Places a receiving request into the receiving queue.
 | |
| 
 | |
|   The Receive() function places a completion token into the receive packet queue.
 | |
|   This function is always asynchronous.
 | |
| 
 | |
|   The Token.Event field in the completion token must be filled in by the caller
 | |
|   and cannot be NULL. When the receive operation completes, the EFI IPv4 Protocol
 | |
|   driver updates the Token.Status and Token.Packet.RxData fields and the Token.Event
 | |
|   is signaled.
 | |
| 
 | |
|   @param  This  The pointer to the EFI_IP4_PROTOCOL instance.
 | |
|   @param  Token The pointer to a token that is associated with the receive data descriptor.
 | |
| 
 | |
|   @retval EFI_SUCCESS           The receive completion token was cached.
 | |
|   @retval EFI_NOT_STARTED       This EFI IPv4 Protocol instance has not been started.
 | |
|   @retval EFI_NO_MAPPING        When using the default address, configuration (DHCP, BOOTP, RARP, etc.)
 | |
|                                 is not finished yet.
 | |
|   @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
 | |
|                                 - This is NULL.
 | |
|                                 - Token is NULL.
 | |
|                                 - Token.Event is NULL.
 | |
|   @retval EFI_OUT_OF_RESOURCES  The receive completion token could not be queued due to a lack of system
 | |
|                                 resources (usually memory).
 | |
|   @retval EFI_DEVICE_ERROR      An unexpected system or network error occurred.
 | |
|                                 The EFI IPv4 Protocol instance has been reset to startup defaults.
 | |
|   @retval EFI_ACCESS_DENIED     The receive completion token with the same Token.Event was already
 | |
|                                 in the receive queue.
 | |
|   @retval EFI_NOT_READY         The receive request could not be queued because the receive queue is full.
 | |
|   @retval EFI_ICMP_ERROR        An ICMP error packet was received.
 | |
| 
 | |
| **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (EFIAPI *EFI_IP4_RECEIVE)(
 | |
|   IN EFI_IP4_PROTOCOL          *This,
 | |
|   IN EFI_IP4_COMPLETION_TOKEN  *Token
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Abort an asynchronous transmit or receive request.
 | |
| 
 | |
|   The Cancel() function is used to abort a pending transmit or receive request.
 | |
|   If the token is in the transmit or receive request queues, after calling this
 | |
|   function, Token->Status will be set to EFI_ABORTED and then Token->Event will
 | |
|   be signaled. If the token is not in one of the queues, which usually means the
 | |
|   asynchronous operation has completed, this function will not signal the token
 | |
|   and EFI_NOT_FOUND is returned.
 | |
| 
 | |
|   @param  This  The pointer to the EFI_IP4_PROTOCOL instance.
 | |
|   @param  Token The pointer to a token that has been issued by
 | |
|                 EFI_IP4_PROTOCOL.Transmit() or
 | |
|                 EFI_IP4_PROTOCOL.Receive(). If NULL, all pending
 | |
|                 tokens are aborted. Type EFI_IP4_COMPLETION_TOKEN is
 | |
|                 defined in EFI_IP4_PROTOCOL.Transmit().
 | |
| 
 | |
|   @retval EFI_SUCCESS           The asynchronous I/O request was aborted and
 | |
|                                 Token->Event was signaled. When Token is NULL, all
 | |
|                                 pending requests were aborted and their events were signaled.
 | |
|   @retval EFI_INVALID_PARAMETER This is NULL.
 | |
|   @retval EFI_NOT_STARTED       This instance has not been started.
 | |
|   @retval EFI_NO_MAPPING        When using the default address, configuration (DHCP, BOOTP,
 | |
|                                 RARP, etc.) is not finished yet.
 | |
|   @retval EFI_NOT_FOUND         When Token is not NULL, the asynchronous I/O request was
 | |
|                                 not found in the transmit or receive queue. It has either completed
 | |
|                                 or was not issued by Transmit() and Receive().
 | |
| 
 | |
| **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (EFIAPI *EFI_IP4_CANCEL)(
 | |
|   IN EFI_IP4_PROTOCOL          *This,
 | |
|   IN EFI_IP4_COMPLETION_TOKEN  *Token OPTIONAL
 | |
|   );
 | |
| 
 | |
| /**
 | |
|   Polls for incoming data packets and processes outgoing data packets.
 | |
| 
 | |
|   The Poll() function polls for incoming data packets and processes outgoing data
 | |
|   packets. Network drivers and applications can call the EFI_IP4_PROTOCOL.Poll()
 | |
|   function to increase the rate that data packets are moved between the communications
 | |
|   device and the transmit and receive queues.
 | |
| 
 | |
|   In some systems the periodic timer event may not poll the underlying communications
 | |
|   device fast enough to transmit and/or receive all data packets without missing
 | |
|   incoming packets or dropping outgoing packets. Drivers and applications that are
 | |
|   experiencing packet loss should try calling the EFI_IP4_PROTOCOL.Poll() function
 | |
|   more often.
 | |
| 
 | |
|   @param  This The pointer to the EFI_IP4_PROTOCOL instance.
 | |
| 
 | |
|   @retval  EFI_SUCCESS           Incoming or outgoing data was processed.
 | |
|   @retval  EFI_NOT_STARTED       This EFI IPv4 Protocol instance has not been started.
 | |
|   @retval  EFI_NO_MAPPING        When using the default address, configuration (DHCP, BOOTP,
 | |
|                                  RARP, etc.) is not finished yet.
 | |
|   @retval  EFI_INVALID_PARAMETER This is NULL.
 | |
|   @retval  EFI_DEVICE_ERROR      An unexpected system or network error occurred.
 | |
|   @retval  EFI_NOT_READY         No incoming or outgoing data is processed.
 | |
|   @retval  EFI_TIMEOUT           Data was dropped out of the transmit and/or receive queue.
 | |
|                                  Consider increasing the polling rate.
 | |
| 
 | |
| **/
 | |
| typedef
 | |
| EFI_STATUS
 | |
| (EFIAPI *EFI_IP4_POLL)(
 | |
|   IN EFI_IP4_PROTOCOL          *This
 | |
|   );
 | |
| 
 | |
| ///
 | |
| /// The EFI IPv4 Protocol implements a simple packet-oriented interface that can be
 | |
| /// used by drivers, daemons, and applications to transmit and receive network packets.
 | |
| ///
 | |
| struct _EFI_IP4_PROTOCOL {
 | |
|   EFI_IP4_GET_MODE_DATA    GetModeData;
 | |
|   EFI_IP4_CONFIGURE        Configure;
 | |
|   EFI_IP4_GROUPS           Groups;
 | |
|   EFI_IP4_ROUTES           Routes;
 | |
|   EFI_IP4_TRANSMIT         Transmit;
 | |
|   EFI_IP4_RECEIVE          Receive;
 | |
|   EFI_IP4_CANCEL           Cancel;
 | |
|   EFI_IP4_POLL             Poll;
 | |
| };
 | |
| 
 | |
| extern EFI_GUID  gEfiIp4ServiceBindingProtocolGuid;
 | |
| extern EFI_GUID  gEfiIp4ProtocolGuid;
 | |
| 
 | |
| #endif
 |