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cf3b58fbe8
It didn't feel right to have a "DHCPClient" in a "Servers" directory. Rename this to Services to better reflect the type of programs we'll be putting in there.
116 lines
4.3 KiB
C++
116 lines
4.3 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/NetworkOrdered.h>
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#include <AK/Types.h>
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class [[gnu::packed]] DNSPacket
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{
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public:
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DNSPacket()
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: m_recursion_desired(false)
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, m_truncated(false)
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, m_authoritative_answer(false)
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, m_opcode(0)
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, m_query_or_response(false)
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, m_response_code(0)
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, m_checking_disabled(false)
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, m_authenticated_data(false)
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, m_zero(false)
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, m_recursion_available(false)
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{
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}
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u16 id() const { return m_id; }
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void set_id(u16 w) { m_id = w; }
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bool recursion_desired() const { return m_recursion_desired; }
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void set_recursion_desired(bool b) { m_recursion_desired = b; }
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bool is_truncated() const { return m_truncated; }
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void set_truncated(bool b) { m_truncated = b; }
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bool is_authoritative_answer() const { return m_authoritative_answer; }
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void set_authoritative_answer(bool b) { m_authoritative_answer = b; }
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u8 opcode() const { return m_opcode; }
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void set_opcode(u8 b) { m_opcode = b; }
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bool is_query() const { return !m_query_or_response; }
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bool is_response() const { return m_query_or_response; }
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void set_is_query() { m_query_or_response = false; }
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void set_is_response() { m_query_or_response = true; }
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u8 response_code() const { return m_response_code; }
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void set_response_code(u8 b) { m_response_code = b; }
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bool checking_disabled() const { return m_checking_disabled; }
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void set_checking_disabled(bool b) { m_checking_disabled = b; }
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bool is_authenticated_data() const { return m_authenticated_data; }
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void set_authenticated_data(bool b) { m_authenticated_data = b; }
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bool is_recursion_available() const { return m_recursion_available; }
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void set_recursion_available(bool b) { m_recursion_available = b; }
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u16 question_count() const { return m_question_count; }
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void set_question_count(u16 w) { m_question_count = w; }
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u16 answer_count() const { return m_answer_count; }
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void set_answer_count(u16 w) { m_answer_count = w; }
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u16 authority_count() const { return m_authority_count; }
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void set_authority_count(u16 w) { m_authority_count = w; }
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u16 additional_count() const { return m_additional_count; }
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void set_additional_count(u16 w) { m_additional_count = w; }
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void* payload() { return this + 1; }
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const void* payload() const { return this + 1; }
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private:
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NetworkOrdered<u16> m_id;
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bool m_recursion_desired : 1;
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bool m_truncated : 1;
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bool m_authoritative_answer : 1;
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u8 m_opcode : 4;
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bool m_query_or_response : 1;
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u8 m_response_code : 4;
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bool m_checking_disabled : 1;
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bool m_authenticated_data : 1;
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bool m_zero : 1;
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bool m_recursion_available : 1;
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NetworkOrdered<u16> m_question_count;
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NetworkOrdered<u16> m_answer_count;
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NetworkOrdered<u16> m_authority_count;
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NetworkOrdered<u16> m_additional_count;
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};
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static_assert(sizeof(DNSPacket) == 12);
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