117 lines
3.2 KiB
C++
117 lines
3.2 KiB
C++
/*
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* Copyright 2022 Max Kellermann <max.kellermann@gmail.com>
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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
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "DscpParser.hxx"
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#include "util/StringAPI.hxx"
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#include <cstdlib>
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#ifdef _WIN32
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#include <ws2tcpip.h>
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#else
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#include <netinet/ip.h>
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#endif
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#ifndef IPTOS_DSCP_AF11
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#define IPTOS_DSCP_AF11 0x28
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#define IPTOS_DSCP_AF12 0x30
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#define IPTOS_DSCP_AF13 0x38
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#define IPTOS_DSCP_AF21 0x48
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#define IPTOS_DSCP_AF22 0x50
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#define IPTOS_DSCP_AF23 0x58
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#define IPTOS_DSCP_AF31 0x68
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#define IPTOS_DSCP_AF32 0x70
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#define IPTOS_DSCP_AF33 0x78
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#define IPTOS_DSCP_AF41 0x88
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#define IPTOS_DSCP_AF42 0x90
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#define IPTOS_DSCP_AF43 0x98
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#endif
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#ifndef IPTOS_DSCP_CS0
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#define IPTOS_DSCP_CS0 0x00
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#define IPTOS_DSCP_CS1 0x20
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#define IPTOS_DSCP_CS2 0x40
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#define IPTOS_DSCP_CS3 0x60
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#define IPTOS_DSCP_CS4 0x80
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#define IPTOS_DSCP_CS5 0xa0
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#define IPTOS_DSCP_CS6 0xc0
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#define IPTOS_DSCP_CS7 0xe0
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#endif
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#ifndef IPTOS_DSCP_EF
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#define IPTOS_DSCP_EF 0xb8
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#endif
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#ifndef IPTOS_DSCP_LE
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#define IPTOS_DSCP_LE 0x04
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#endif
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static constexpr struct {
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const char *name;
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int value;
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} dscp_classes[] = {
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{ "AF11", IPTOS_DSCP_AF11 },
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{ "AF12", IPTOS_DSCP_AF12 },
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{ "AF13", IPTOS_DSCP_AF13 },
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{ "AF21", IPTOS_DSCP_AF21 },
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{ "AF22", IPTOS_DSCP_AF22 },
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{ "AF23", IPTOS_DSCP_AF23 },
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{ "AF31", IPTOS_DSCP_AF31 },
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{ "AF32", IPTOS_DSCP_AF32 },
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{ "AF33", IPTOS_DSCP_AF33 },
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{ "AF41", IPTOS_DSCP_AF41 },
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{ "AF42", IPTOS_DSCP_AF42 },
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{ "AF43", IPTOS_DSCP_AF43 },
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{ "CS0", IPTOS_DSCP_CS0 },
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{ "CS1", IPTOS_DSCP_CS1 },
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{ "CS2", IPTOS_DSCP_CS2 },
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{ "CS3", IPTOS_DSCP_CS3 },
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{ "CS4", IPTOS_DSCP_CS4 },
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{ "CS5", IPTOS_DSCP_CS5 },
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{ "CS6", IPTOS_DSCP_CS6 },
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{ "CS7", IPTOS_DSCP_CS7 },
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{ "EF", IPTOS_DSCP_EF },
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{ "LE", IPTOS_DSCP_LE },
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};
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int
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ParseDscpClass(const char *s) noexcept
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{
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for (const auto &i : dscp_classes)
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if (StringIsEqualIgnoreCase(s, i.name))
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return i.value;
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char *endptr;
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unsigned long value = strtoul(s, &endptr, 0);
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if (endptr > s && *endptr == 0 && value <= 0xff)
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return value;
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return -1;
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}
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