mirror of
https://github.com/oxen-io/lokinet.git
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0f21eeccb0
* rework net code for ip ranges to be cleaner * clean up endpoint auth code * refactor config to validate network configs before setting up endpoints * remove buildone from path/pathbuilder.cpp so we don't spam connection attempts
100 lines
2.4 KiB
C++
100 lines
2.4 KiB
C++
#pragma once
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#include <ostream>
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#include <net/ip.hpp>
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#include <net/net_bits.hpp>
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#include <util/bits.hpp>
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#include <util/types.hpp>
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#include <string>
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namespace llarp
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{
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struct IPRange
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{
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using Addr_t = huint128_t;
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huint128_t addr = {0};
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huint128_t netmask_bits = {0};
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static constexpr IPRange
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FromIPv4(byte_t a, byte_t b, byte_t c, byte_t d, byte_t mask)
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{
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return IPRange{net::ExpandV4(ipaddr_ipv4_bits(a, b, c, d)), netmask_ipv6_bits(mask + 96)};
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}
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/// return true if this iprange is in the SIIT range for containing ipv4 addresses
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constexpr bool
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IsV4() const
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{
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constexpr auto siit = IPRange{huint128_t{0x0000'ffff'0000'0000UL}, netmask_ipv6_bits(96)};
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return siit.Contains(addr);
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}
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/// return the number of bits set in the hostmask
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constexpr int
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HostmaskBits() const
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{
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if (IsV4())
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{
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return bits::count_bits(net::TruncateV6(netmask_bits));
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}
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return bits::count_bits(netmask_bits);
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}
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/// return true if the other range is inside our range
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constexpr bool
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Contains(const IPRange& other) const
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{
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return Contains(other.addr) and Contains(other.HighestAddr());
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}
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/// return true if ip is contained in this ip range
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constexpr bool
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Contains(const Addr_t& ip) const
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{
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return (addr & netmask_bits) == (ip & netmask_bits);
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}
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/// return true if we are a ipv4 range and contains this ip
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constexpr bool
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Contains(const huint32_t& ip) const
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{
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if (not IsV4())
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return false;
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return Contains(net::ExpandV4(ip));
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}
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friend std::ostream&
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operator<<(std::ostream& out, const IPRange& a)
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{
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return out << a.ToString();
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}
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/// get the highest address on this range
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constexpr huint128_t
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HighestAddr() const
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{
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return (addr & netmask_bits) + (huint128_t{1} << (128 - bits::count_bits_128(netmask_bits.h)))
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- huint128_t{1};
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}
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bool
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operator<(const IPRange& other) const
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{
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return (this->addr & this->netmask_bits) < (other.addr & other.netmask_bits)
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|| this->netmask_bits < other.netmask_bits;
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}
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std::string
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ToString() const
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{
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return BaseAddressString() + "/" + std::to_string(HostmaskBits());
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}
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std::string
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BaseAddressString() const;
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bool
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FromString(std::string str);
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};
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} // namespace llarp
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