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103 lines
3.6 KiB
C
103 lines
3.6 KiB
C
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/** @file
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Header file for ICMPv6 protocol.
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Copyright (c) 2009 - 2010, 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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#ifndef __EFI_IP6_ICMP_H__
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#define __EFI_IP6_ICMP_H__
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#define ICMP_V6_DEFAULT_CODE 0
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#define ICMP_V6_ERROR_MAX 127
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//
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// ICMPv6 message classes, each class of ICMPv6 message shares
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// a common message format. INVALID_MESSAGE is only a flag.
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//
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#define ICMP_V6_INVALID_MESSAGE 0
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#define ICMP_V6_ERROR_MESSAGE 1
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#define ICMP_V6_INFORMATION_MESSAGE 2
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extern EFI_IP6_ICMP_TYPE mIp6SupportedIcmp[];
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/**
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Handle the ICMPv6 packet. First validate the message format,
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then, according to the message types, process it as an informational packet or
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an error packet.
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@param[in] IpSb The IP service that received the packet.
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@param[in] Head The IP head of the ICMPv6 packet.
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@param[in] Packet The content of the ICMPv6 packet with IP head
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removed.
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@retval EFI_INVALID_PARAMETER The packet is malformated.
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@retval EFI_SUCCESS The ICMPv6 message successfully processed.
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@retval Others Failed to handle the ICMPv6 packet.
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**/
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EFI_STATUS
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Ip6IcmpHandle (
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IN IP6_SERVICE *IpSb,
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IN EFI_IP6_HEADER *Head,
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IN NET_BUF *Packet
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);
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/**
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Check whether the DestinationAddress is an anycast address.
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@param[in] IpSb The IP service that received the packet.
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@param[in] DestinationAddress Points to the Destination Address of the packet.
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@retval TRUE The DestinationAddress is anycast address.
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@retval FALSE The DestinationAddress is not anycast address.
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**/
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BOOLEAN
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Ip6IsAnycast (
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IN IP6_SERVICE *IpSb,
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IN EFI_IPv6_ADDRESS *DestinationAddress
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);
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/**
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Generate ICMPv6 error message and send it out to DestinationAddress. Currently
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Destination Unreachable message, Time Exceeded message and Parameter Problem
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message are supported.
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@param[in] IpSb The IP service that received the packet.
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@param[in] Packet The packet which invoking ICMPv6 error.
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@param[in] SourceAddress If not NULL, points to the SourceAddress.
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Otherwise, the IP layer will select a source address
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according to the DestinationAddress.
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@param[in] DestinationAddress Points to the Destination Address of the ICMPv6
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error message.
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@param[in] Type The type of the ICMPv6 message.
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@param[in] Code The additional level of the ICMPv6 message.
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@param[in] Pointer If not NULL, identifies the octet offset within
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the invoking packet where the error was detected.
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@retval EFI_INVALID_PARAMETER The packet is malformated.
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@retval EFI_OUT_OF_RESOURCES There is no sufficient resource to complete the
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operation.
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@retval EFI_SUCCESS The ICMPv6 message was successfully sent out.
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@retval Others Failed to generate the ICMPv6 packet.
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**/
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EFI_STATUS
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Ip6SendIcmpError (
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IN IP6_SERVICE *IpSb,
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IN NET_BUF *Packet,
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IN EFI_IPv6_ADDRESS *SourceAddress OPTIONAL,
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IN EFI_IPv6_ADDRESS *DestinationAddress,
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IN UINT8 Type,
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IN UINT8 Code,
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IN UINT32 *Pointer OPTIONAL
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);
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#endif
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