42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
/*
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* This file is open source software, licensed to you under the terms
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* of the Apache License, Version 2.0 (the "License"). See the NOTICE file
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* distributed with this work for additional information regarding copyright
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* ownership. You may not use this file except in compliance with the License.
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*
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/*
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* Copyright (C) 2014 Cloudius Systems, Ltd.
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*/
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#ifndef CONST_HH_
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#define CONST_HH_
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namespace net {
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enum class ip_protocol_num : uint8_t {
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icmp = 1, tcp = 6, udp = 17, unused = 255
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};
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enum class eth_protocol_num : uint16_t {
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ipv4 = 0x0800, arp = 0x0806, ipv6 = 0x86dd
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};
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const uint8_t eth_hdr_len = 14;
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const uint8_t tcp_hdr_len_min = 20;
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const uint8_t ipv4_hdr_len_min = 20;
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const uint8_t ipv6_hdr_len_min = 40;
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const uint16_t ip_packet_len_max = 65535;
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}
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#endif
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