llarp/net/ip.hpp

Namespaces

Name
llarp [crypto.hpp]
llarp::net
llarp::net::detail

Source code

#pragma once
#include "net_int.hpp"
#include <cstdint>

namespace llarp::net
{
  huint128_t
  In6ToHUInt(in6_addr addr);

  in6_addr
  HUIntToIn6(huint128_t x);

  namespace detail
  {

    constexpr huint128_t
    ExpandV4(huint32_t x)
    {
      return huint128_t{0x0000'ffff'0000'0000UL} | huint128_t{x.h};
    }

    constexpr huint128_t
    ExpandV4Lan(huint32_t x)
    {
      return huint128_t{uint128_t{0xfd00'0000'0000'0000UL, 0UL}} | huint128_t{x.h};
    }

    constexpr huint32_t
    TruncateV6(huint128_t x)
    {
      huint32_t ret = {0};
      ret.h = (uint32_t)(x.h & 0x0000'0000'ffff'ffffUL);
      return ret;
    }
  }  // namespace detail

  inline ipv6addr_t
  ExpandV4(ipv4addr_t x)
  {
    return ToNet(detail::ExpandV4(ToHost(x)));
  }

  inline ipv6addr_t
  ExpandV4Lan(ipv4addr_t x)
  {
    return ToNet(detail::ExpandV4Lan(ToHost(x)));
  }

  inline ipv4addr_t
  TruncateV6(ipv6addr_t x)
  {
    return ToNet(detail::TruncateV6(ToHost(x)));
  }

}  // namespace llarp::net

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Updated on 2026-01-10 at 22:49:45 +0000