Ejemplo n.º 1
0
// public
bool operator==(const IPAddress& addr1, const IPAddress& addr2) {
  if (addr1.family() == addr2.family()) {
    if (addr1.isV6()) {
      return (addr1.asV6() == addr2.asV6());
    } else if (addr1.isV4()) {
      return (addr1.asV4() == addr2.asV4());
    } else {
      CHECK_EQ(addr1.family(), AF_UNSPEC);
      // Two default initialized AF_UNSPEC addresses should be considered equal.
      // AF_UNSPEC is the only other value for which an IPAddress can be
      // created, in the default constructor case.
      return true;
    }
  }
  // addr1 is v4 mapped v6 address, addr2 is v4
  if (addr1.isIPv4Mapped() && addr2.isV4()) {
    if (IPAddress::createIPv4(addr1) == addr2.asV4()) {
      return true;
    }
  }
  // addr2 is v4 mapped v6 address, addr1 is v4
  if (addr2.isIPv4Mapped() && addr1.isV4()) {
    if (IPAddress::createIPv4(addr2) == addr1.asV4()) {
      return true;
    }
  }
  // we only compare IPv4 and IPv6 addresses
  return false;
}
Ejemplo n.º 2
0
// public
bool IPAddress::inSubnetWithMask(const IPAddress& subnet, ByteRange mask)
    const {
  auto mkByteArray4 = [&]() -> ByteArray4 {
    ByteArray4 ba{{0}};
    std::memcpy(ba.data(), mask.begin(), std::min<size_t>(mask.size(), 4));
    return ba;
  };

  if (bitCount() == subnet.bitCount()) {
    if (isV4()) {
      return asV4().inSubnetWithMask(subnet.asV4(), mkByteArray4());
    } else {
      ByteArray16 ba{{0}};
      std::memcpy(ba.data(), mask.begin(), std::min<size_t>(mask.size(), 16));
      return asV6().inSubnetWithMask(subnet.asV6(), ba);
    }
  }

  // an IPv4 address can never belong in a IPv6 subnet unless the IPv6 is a 6to4
  // address and vice-versa
  if (isV6()) {
    const IPAddressV6& v6addr = asV6();
    const IPAddressV4& v4subnet = subnet.asV4();
    if (v6addr.is6To4()) {
      return v6addr.getIPv4For6To4().inSubnetWithMask(v4subnet, mkByteArray4());
    }
  } else if (subnet.isV6()) {
    const IPAddressV6& v6subnet = subnet.asV6();
    const IPAddressV4& v4addr = asV4();
    if (v6subnet.is6To4()) {
      return v4addr.inSubnetWithMask(v6subnet.getIPv4For6To4(), mkByteArray4());
    }
  }
  return false;
}
Ejemplo n.º 3
0
// public
bool IPAddress::inSubnet(const IPAddress& subnet, uint8_t cidr) const {
  if (bitCount() == subnet.bitCount()) {
    if (isV4()) {
      return asV4().inSubnet(subnet.asV4(), cidr);
    } else {
      return asV6().inSubnet(subnet.asV6(), cidr);
    }
  }
  // an IPv4 address can never belong in a IPv6 subnet unless the IPv6 is a 6to4
  // address and vice-versa
  if (isV6()) {
    const IPAddressV6& v6addr = asV6();
    const IPAddressV4& v4subnet = subnet.asV4();
    if (v6addr.is6To4()) {
      return v6addr.getIPv4For6To4().inSubnet(v4subnet, cidr);
    }
  } else if (subnet.isV6()) {
    const IPAddressV6& v6subnet = subnet.asV6();
    const IPAddressV4& v4addr = asV4();
    if (v6subnet.is6To4()) {
      return v4addr.inSubnet(v6subnet.getIPv4For6To4(), cidr);
    }
  }
  return false;
}
Ejemplo n.º 4
0
TEST(IPAddress, fromBinaryV4) {
  for (auto& tc : provideToLong) {
    SCOPED_TRACE(tc.first);
    union {
      uint8_t u8[4];
      uint32_t u32;
    } data;
    data.u32 = Endian::big(tc.second);
    ByteRange bytes(data.u8, 4);

    auto fromBin = IPAddressV4::fromBinary(bytes);
    IPAddressV4 fromStr(tc.first);
    EXPECT_EQ(fromStr, fromBin);

    IPAddressV4 addr2("0.0.0.0");
    addr2 = IPAddressV4::fromBinary(bytes);
    EXPECT_EQ(fromStr, addr2);

    IPAddress genericAddr = IPAddress::fromBinary(bytes);
    ASSERT_TRUE(genericAddr.isV4());
    EXPECT_EQ(fromStr, genericAddr.asV4());
    EXPECT_EQ(ByteRange(genericAddr.bytes(), genericAddr.byteCount()), bytes);
  }

  uint8_t data[20];
  EXPECT_THROW(IPAddressV4::fromBinary(ByteRange(data, 3)),
               IPAddressFormatException);
  EXPECT_THROW(IPAddressV4::fromBinary(ByteRange(data, 16)),
               IPAddressFormatException);
  EXPECT_THROW(IPAddressV4::fromBinary(ByteRange(data, 20)),
               IPAddressFormatException);
}
Ejemplo n.º 5
0
// public static
IPAddressV6 IPAddress::createIPv6(const IPAddress& addr) {
  if (addr.isV6()) {
    return addr.asV6();
  } else {
    return addr.asV4().createIPv6();
  }
}
Ejemplo n.º 6
0
// expects the cachesMutex_ to be held
bool NeighborUpdater::flushEntryImpl(VlanID vlan, IPAddress ip) {
  if (ip.isV4()) {
    auto cache = getArpCacheInternal(vlan);
    return cache->flushEntryBlocking(ip.asV4());
  }
  auto cache = getNdpCacheInternal(vlan);
  return cache->flushEntryBlocking(ip.asV6());
}
Ejemplo n.º 7
0
bool operator<(const IPAddress& addr1, const IPAddress& addr2) {
  if (addr1.family() == addr2.family()) {
    if (addr1.isV6()) {
      return (addr1.asV6() < addr2.asV6());
    } else if (addr1.isV4()) {
      return (addr1.asV4() < addr2.asV4());
    } else {
      CHECK_EQ(addr1.family(), AF_UNSPEC);
      // Two default initialized AF_UNSPEC addresses can not be less than each
      // other. AF_UNSPEC is the only other value for which an IPAddress can be
      // created, in the default constructor case.
      return false;
    }
  }
  if (addr1.isV6()) {
    // means addr2 is v4, convert it to a mapped v6 address and compare
    return addr1.asV6() < addr2.asV4().createIPv6();
  }
  if (addr2.isV6()) {
    // means addr2 is v6, convert addr1 to v4 mapped and compare
    return addr1.asV4().createIPv6() < addr2.asV6();
  }
  return false;
}
Ejemplo n.º 8
0
TEST(IPAddress, InvalidAddressFamilyExceptions) {
  // asV4
  {
    IPAddress addr;
    EXPECT_THROW(addr.asV4(), InvalidAddressFamilyException);
  }
  // asV6
  {
    IPAddress addr;
    EXPECT_THROW(addr.asV6(), InvalidAddressFamilyException);
  }
  // sockaddr ctor
  {
    // setup
    sockaddr_in addr;
    addr.sin_family = AF_UNSPEC;

    EXPECT_THROW(IPAddress((sockaddr *)&addr), InvalidAddressFamilyException);
  }
}