2020-01-18 11:38:21 +03:00
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/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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2021-04-22 11:24:48 +03:00
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* SPDX-License-Identifier: BSD-2-Clause
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2020-01-18 11:38:21 +03:00
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*/
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2019-03-12 06:11:20 +03:00
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#pragma once
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2020-04-04 14:18:28 +03:00
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#include <AK/MACAddress.h>
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2019-04-02 20:54:38 +03:00
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#include <Kernel/Net/IPv4.h>
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2019-03-12 06:11:20 +03:00
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struct ICMPType {
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2019-06-07 18:13:23 +03:00
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enum {
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2019-05-28 12:53:16 +03:00
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EchoReply = 0,
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EchoRequest = 8,
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};
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2019-03-12 06:11:20 +03:00
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};
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2020-12-31 00:44:54 +03:00
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class [[gnu::packed]] ICMPHeader {
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2019-03-12 06:11:20 +03:00
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public:
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2021-02-28 16:42:08 +03:00
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ICMPHeader() = default;
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~ICMPHeader() = default;
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2019-03-12 06:11:20 +03:00
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2019-07-03 22:17:35 +03:00
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u8 type() const { return m_type; }
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void set_type(u8 b) { m_type = b; }
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2019-03-12 06:11:20 +03:00
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2019-07-03 22:17:35 +03:00
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u8 code() const { return m_code; }
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void set_code(u8 b) { m_code = b; }
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2019-03-12 06:11:20 +03:00
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2019-07-03 22:17:35 +03:00
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u16 checksum() const { return m_checksum; }
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void set_checksum(u16 w) { m_checksum = w; }
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2019-03-12 06:11:20 +03:00
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2022-04-01 20:58:27 +03:00
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void const* payload() const { return this + 1; }
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2019-03-12 06:39:50 +03:00
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void* payload() { return this + 1; }
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2019-03-12 06:11:20 +03:00
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private:
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2019-07-03 22:17:35 +03:00
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u8 m_type { 0 };
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u8 m_code { 0 };
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NetworkOrdered<u16> m_checksum { 0 };
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2019-03-12 06:39:50 +03:00
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// NOTE: The rest of the header is 4 bytes
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2019-03-12 06:11:20 +03:00
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};
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2021-09-05 10:57:53 +03:00
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static_assert(AssertSize<ICMPHeader, 4>());
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2019-03-12 06:11:20 +03:00
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2020-12-31 00:44:54 +03:00
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struct [[gnu::packed]] ICMPEchoPacket {
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2019-03-12 06:11:20 +03:00
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ICMPHeader header;
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2019-07-03 22:17:35 +03:00
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NetworkOrdered<u16> identifier;
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NetworkOrdered<u16> sequence_number;
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2019-03-12 06:39:50 +03:00
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void* payload() { return this + 1; }
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2022-04-01 20:58:27 +03:00
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void const* payload() const { return this + 1; }
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2019-03-12 06:11:20 +03:00
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};
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