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Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#pragma once
28
29#include <Kernel/Net/IPv4.h>
30
31namespace Kernel {
32
33class [[gnu::packed]] UDPPacket
34{
35public:
36 UDPPacket() {}
37 ~UDPPacket() {}
38
39 u16 source_port() const { return m_source_port; }
40 void set_source_port(u16 port) { m_source_port = port; }
41
42 u16 destination_port() const { return m_destination_port; }
43 void set_destination_port(u16 port) { m_destination_port = port; }
44
45 u16 length() const { return m_length; }
46 void set_length(u16 length) { m_length = length; }
47
48 u16 checksum() const { return m_checksum; }
49 void set_checksum(u16 checksum) { m_checksum = checksum; }
50
51 const void* payload() const { return this + 1; }
52 void* payload() { return this + 1; }
53
54private:
55 NetworkOrdered<u16> m_source_port;
56 NetworkOrdered<u16> m_destination_port;
57 NetworkOrdered<u16> m_length;
58 NetworkOrdered<u16> m_checksum;
59};
60
61static_assert(sizeof(UDPPacket) == 8);
62
63}