/*
- * Copyright 2014 Facebook, Inc.
+ * Copyright 2017 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <folly/IPAddress.h>
#include <folly/IPAddressV4.h>
#include <folly/MacAddress.h>
+#include <folly/detail/IPAddressSource.h>
+
+#if !_WIN32
+#include <net/if.h>
+#else
+// Because of the massive pain that is libnl, this can't go into the socket
+// portability header as you can't include <linux/if.h> and <net/if.h> in
+// the same translation unit without getting errors -_-...
+#include <iphlpapi.h> // @manual
+#include <ntddndis.h> // @manual
+
+// Alias the max size of an interface name to what posix expects.
+#define IFNAMSIZ IF_NAMESIZE
+#endif
using std::ostream;
using std::string;
result->append(addr.str());
}
-// public default constructor
-IPAddressV6::IPAddressV6() {
+bool IPAddressV6::validate(StringPiece ip) noexcept {
+ return tryFromString(ip).hasValue();
}
+// public default constructor
+IPAddressV6::IPAddressV6() {}
+
// public string constructor
IPAddressV6::IPAddressV6(StringPiece addr) {
- auto ip = addr.str();
+ auto maybeIp = tryFromString(addr);
+ if (maybeIp.hasError()) {
+ throw IPAddressFormatException(
+ to<std::string>("Invalid IPv6 address '", addr, "'"));
+ }
+ *this = std::move(maybeIp.value());
+}
+
+Expected<IPAddressV6, IPAddressFormatError> IPAddressV6::tryFromString(
+ StringPiece str) noexcept {
+ auto ip = str.str();
// Allow addresses surrounded in brackets
if (ip.size() < 2) {
- throw IPAddressFormatException("Invalid IPv6 address '", ip,
- "': address too short");
+ return makeUnexpected(IPAddressFormatError::INVALID_IP);
}
if (ip.front() == '[' && ip.back() == ']') {
ip = ip.substr(1, ip.size() - 2);
hints.ai_family = AF_INET6;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_NUMERICHOST;
- if (!getaddrinfo(ip.c_str(), nullptr, &hints, &result)) {
- struct sockaddr_in6* ipAddr = (struct sockaddr_in6*)result->ai_addr;
- addr_.in6Addr_ = ipAddr->sin6_addr;
- scope_ = ipAddr->sin6_scope_id;
- freeaddrinfo(result);
- } else {
- throw IPAddressFormatException("Invalid IPv6 address '", ip, "'");
+ if (::getaddrinfo(ip.c_str(), nullptr, &hints, &result) == 0) {
+ SCOPE_EXIT {
+ ::freeaddrinfo(result);
+ };
+ const struct sockaddr_in6* sa =
+ reinterpret_cast<struct sockaddr_in6*>(result->ai_addr);
+ return IPAddressV6(*sa);
}
+ return makeUnexpected(IPAddressFormatError::INVALID_IP);
}
// in6_addr constructor
-IPAddressV6::IPAddressV6(const in6_addr& src)
- : addr_(src)
-{
-}
+IPAddressV6::IPAddressV6(const in6_addr& src) noexcept : addr_(src) {}
// sockaddr_in6 constructor
-IPAddressV6::IPAddressV6(const sockaddr_in6& src)
- : addr_(src.sin6_addr)
- , scope_(src.sin6_scope_id)
-{
-}
+IPAddressV6::IPAddressV6(const sockaddr_in6& src) noexcept
+ : addr_(src.sin6_addr), scope_(uint16_t(src.sin6_scope_id)) {}
// ByteArray16 constructor
-IPAddressV6::IPAddressV6(const ByteArray16& src)
- : addr_(src)
-{
-}
+IPAddressV6::IPAddressV6(const ByteArray16& src) noexcept : addr_(src) {}
// link-local constructor
-IPAddressV6::IPAddressV6(LinkLocalTag, MacAddress mac)
- : addr_(mac) {
-}
+IPAddressV6::IPAddressV6(LinkLocalTag, MacAddress mac) : addr_(mac) {}
IPAddressV6::AddressStorage::AddressStorage(MacAddress mac) {
// The link-local address uses modified EUI-64 format,
// See RFC 4291 sections 2.5.1, 2.5.6, and Appendix A
const auto* macBytes = mac.bytes();
memcpy(&bytes_.front(), "\xfe\x80\x00\x00\x00\x00\x00\x00", 8);
- bytes_[8] = macBytes[0] ^ 0x02;
+ bytes_[8] = uint8_t(macBytes[0] ^ 0x02);
bytes_[9] = macBytes[1];
bytes_[10] = macBytes[2];
bytes_[11] = 0xff;
bytes_[15] = macBytes[5];
}
-void IPAddressV6::setFromBinary(ByteRange bytes) {
+Optional<MacAddress> IPAddressV6::getMacAddressFromLinkLocal() const {
+ // Returned MacAddress must be constructed from a link-local IPv6 address.
+ if (!isLinkLocal()) {
+ return folly::none;
+ }
+ return getMacAddressFromEUI64();
+}
+
+Optional<MacAddress> IPAddressV6::getMacAddressFromEUI64() const {
+ if (!(addr_.bytes_[11] == 0xff && addr_.bytes_[12] == 0xfe)) {
+ return folly::none;
+ }
+ // The auto configured address uses modified EUI-64 format,
+ // See RFC 4291 sections 2.5.1, 2.5.6, and Appendix A
+ std::array<uint8_t, MacAddress::SIZE> bytes;
+ // Step 1: first 8 bytes are network prefix, and can be stripped
+ // Step 2: invert the universal/local (U/L) flag (bit 7)
+ bytes[0] = addr_.bytes_[8] ^ 0x02;
+ // Step 3: copy these bytes as they are
+ bytes[1] = addr_.bytes_[9];
+ bytes[2] = addr_.bytes_[10];
+ // Step 4: strip bytes (0xfffe), which are bytes_[11] and bytes_[12]
+ // Step 5: copy the rest.
+ bytes[3] = addr_.bytes_[13];
+ bytes[4] = addr_.bytes_[14];
+ bytes[5] = addr_.bytes_[15];
+ return Optional<MacAddress>(MacAddress::fromBinary(range(bytes)));
+}
+
+IPAddressV6 IPAddressV6::fromBinary(ByteRange bytes) {
+ auto maybeIp = tryFromBinary(bytes);
+ if (maybeIp.hasError()) {
+ throw IPAddressFormatException(to<std::string>(
+ "Invalid IPv6 binary data: length must be 16 bytes, got ",
+ bytes.size()));
+ }
+ return maybeIp.value();
+}
+
+Expected<IPAddressV6, IPAddressFormatError> IPAddressV6::tryFromBinary(
+ ByteRange bytes) noexcept {
+ IPAddressV6 addr;
+ auto setResult = addr.trySetFromBinary(bytes);
+ if (setResult.hasError()) {
+ return makeUnexpected(std::move(setResult.error()));
+ }
+ return addr;
+}
+
+Expected<Unit, IPAddressFormatError> IPAddressV6::trySetFromBinary(
+ ByteRange bytes) noexcept {
if (bytes.size() != 16) {
- throw IPAddressFormatException("Invalid IPv6 binary data: length must "
- "be 16 bytes, got ", bytes.size());
+ return makeUnexpected(IPAddressFormatError::INVALID_IP);
}
memcpy(&addr_.in6Addr_.s6_addr, bytes.data(), sizeof(in6_addr));
scope_ = 0;
+ return unit;
+}
+
+// static
+IPAddressV6 IPAddressV6::fromInverseArpaName(const std::string& arpaname) {
+ auto piece = StringPiece(arpaname);
+ if (!piece.removeSuffix(".ip6.arpa")) {
+ throw IPAddressFormatException(sformat(
+ "Invalid input. Should end with 'ip6.arpa'. Got '{}'", arpaname));
+ }
+ std::vector<StringPiece> pieces;
+ split(".", piece, pieces);
+ if (pieces.size() != 32) {
+ throw IPAddressFormatException(sformat("Invalid input. Got '{}'", piece));
+ }
+ std::array<char, IPAddressV6::kToFullyQualifiedSize> ip;
+ size_t pos = 0;
+ int count = 0;
+ for (size_t i = 1; i <= pieces.size(); i++) {
+ ip[pos] = pieces[pieces.size() - i][0];
+ pos++;
+ count++;
+ // add ':' every 4 chars
+ if (count == 4 && pos < ip.size()) {
+ ip[pos++] = ':';
+ count = 0;
+ }
+ }
+ return IPAddressV6(folly::range(ip));
}
// public
// convert two uint8_t bytes into a uint16_t as hibyte.lobyte
static inline uint16_t unpack(uint8_t lobyte, uint8_t hibyte) {
- return ((uint16_t)hibyte << 8) | (uint16_t)lobyte;
+ return uint16_t((uint16_t(hibyte) << 8) | lobyte);
}
// given a src string, unpack count*2 bytes into dest
// dest must have as much storage as count
-static inline void unpackInto(const unsigned char* src,
- uint16_t* dest,
- size_t count) {
+static inline void
+unpackInto(const unsigned char* src, uint16_t* dest, size_t count) {
for (size_t i = 0, hi = 1, lo = 0; i < count; i++) {
dest[i] = unpack(src[hi], src[lo]);
hi += 2;
// public
IPAddressV4 IPAddressV6::getIPv4For6To4() const {
if (!is6To4()) {
- throw IPAddressV6::TypeError(format(
- "Invalid IP '{}': not a 6to4 address", str()).str());
+ throw IPAddressV6::TypeError(
+ sformat("Invalid IP '{}': not a 6to4 address", str()));
}
// convert 16x8 bytes into first 4x16 bytes
- uint16_t ints[4] = {0,0,0,0};
+ uint16_t ints[4] = {0, 0, 0, 0};
unpackInto(bytes(), ints, 4);
// repack into 4x8
union {
// public
IPAddressV6::Type IPAddressV6::type() const {
// convert 16x8 bytes into first 2x16 bytes
- uint16_t ints[2] = {0,0};
+ uint16_t ints[2] = {0, 0};
unpackInto(bytes(), ints, 2);
if ((((uint32_t)ints[0] << 16) | ints[1]) == IPAddressV6::PREFIX_TEREDO) {
// public
string IPAddressV6::toJson() const {
- return format(
- "{{family:'AF_INET6', addr:'{}', hash:{}}}", str(), hash()).str();
+ return sformat("{{family:'AF_INET6', addr:'{}', hash:{}}}", str(), hash());
}
// public
auto subnetInfo = IPAddress::createNetwork(cidrNetwork);
auto addr = subnetInfo.first;
if (!addr.isV6()) {
- throw IPAddressFormatException("Address '", addr.toJson(), "' ",
- "is not a V6 address");
+ throw IPAddressFormatException(
+ sformat("Address '{}' is not a V6 address", addr.toJson()));
}
return inSubnetWithMask(addr.asV6(), fetchMask(subnetInfo.second));
}
// public
-bool IPAddressV6::inSubnetWithMask(const IPAddressV6& subnet,
- const ByteArray16& cidrMask) const {
- const ByteArray16 mask = detail::Bytes::mask(toByteArray(), cidrMask);
- const ByteArray16 subMask = detail::Bytes::mask(subnet.toByteArray(),
- cidrMask);
+bool IPAddressV6::inSubnetWithMask(
+ const IPAddressV6& subnet,
+ const ByteArray16& cidrMask) const {
+ const auto mask = detail::Bytes::mask(toByteArray(), cidrMask);
+ const auto subMask = detail::Bytes::mask(subnet.toByteArray(), cidrMask);
return (mask == subMask);
}
bool IPAddressV6::isRoutable() const {
return
- // 2000::/3 is the only assigned global unicast block
- inBinarySubnet({{0x20, 0x00}}, 3) ||
- // ffxe::/16 are global scope multicast addresses,
- // which are eligible to be routed over the internet
- (isMulticast() && getMulticastScope() == 0xe);
+ // 2000::/3 is the only assigned global unicast block
+ inBinarySubnet({{0x20, 0x00}}, 3) ||
+ // ffxe::/16 are global scope multicast addresses,
+ // which are eligible to be routed over the internet
+ (isMulticast() && getMulticastScope() == 0xe);
}
bool IPAddressV6::isLinkLocalBroadcast() const {
uint8_t IPAddressV6::getMulticastFlags() const {
DCHECK(isMulticast());
- return ((addr_.bytes_[1] >> 4) & 0xf);
+ return uint8_t((addr_.bytes_[1] >> 4) & 0xf);
}
uint8_t IPAddressV6::getMulticastScope() const {
DCHECK(isMulticast());
- return (addr_.bytes_[1] & 0xf);
+ return uint8_t(addr_.bytes_[1] & 0xf);
}
IPAddressV6 IPAddressV6::getSolicitedNodeAddress() const {
// addresses
DCHECK(!isMulticast());
- uint8_t bytes[16] = { 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x01, 0xff, 0x00, 0x00, 0x00 };
- bytes[13] = addr_.bytes_[13];
- bytes[14] = addr_.bytes_[14];
- bytes[15] = addr_.bytes_[15];
+ uint8_t bytes[16] = {
+ 0xff,
+ 0x02,
+ 0x00,
+ 0x00,
+ 0x00,
+ 0x00,
+ 0x00,
+ 0x00,
+ 0x00,
+ 0x00,
+ 0x00,
+ 0x01,
+ 0xff,
+ addr_.bytes_[13],
+ addr_.bytes_[14],
+ addr_.bytes_[15],
+ };
return IPAddressV6::fromBinary(ByteRange(bytes, 16));
}
IPAddressV6 IPAddressV6::mask(size_t numBits) const {
static const auto bits = bitCount();
if (numBits > bits) {
- throw IPAddressFormatException("numBits(", numBits, ") > bitCount(",
- bits, ")");
+ throw IPAddressFormatException(
+ sformat("numBits({}) > bitCount({})", numBits, bits));
}
ByteArray16 ba = detail::Bytes::mask(fetchMask(numBits), addr_.bytes_);
return IPAddressV6(ba);
// public
string IPAddressV6::str() const {
- char buffer[INET6_ADDRSTRLEN] = {0};
- sockaddr_in6 sock = toSockAddr();
- if (!getnameinfo(
- (sockaddr*)&sock, sizeof(sock),
- buffer, INET6_ADDRSTRLEN,
- nullptr, 0, NI_NUMERICHOST)) {
- string ip(buffer);
- return std::move(ip);
- } else {
- throw IPAddressFormatException("Invalid address with hex ",
- "'", detail::Bytes::toHex(bytes(), 16), "'");
+ char buffer[INET6_ADDRSTRLEN + IFNAMSIZ + 1];
+
+ if (!inet_ntop(AF_INET6, toAddr().s6_addr, buffer, INET6_ADDRSTRLEN)) {
+ throw IPAddressFormatException(sformat(
+ "Invalid address with hex '{}' with error {}",
+ detail::Bytes::toHex(bytes(), 16),
+ strerror(errno)));
+ }
+
+ auto scopeId = getScopeId();
+ if (scopeId != 0) {
+ auto len = strlen(buffer);
+ buffer[len] = '%';
+
+ auto errsv = errno;
+ if (!if_indextoname(scopeId, buffer + len + 1)) {
+ // if we can't map the if because eg. it no longer exists,
+ // append the if index instead
+ snprintf(buffer + len + 1, IFNAMSIZ, "%u", scopeId);
+ }
+ errno = errsv;
}
+
+ return string(buffer);
}
// public
return detail::fastIpv6ToString(addr_.in6Addr_);
}
+// public
+void IPAddressV6::toFullyQualifiedAppend(std::string& out) const {
+ detail::fastIpv6AppendToString(addr_.in6Addr_, out);
+}
+
+// public
+string IPAddressV6::toInverseArpaName() const {
+ constexpr folly::StringPiece lut = "0123456789abcdef";
+ std::array<char, 32> a;
+ int j = 0;
+ for (int i = 15; i >= 0; i--) {
+ a[j] = (lut[bytes()[i] & 0xf]);
+ a[j + 1] = (lut[bytes()[i] >> 4]);
+ j += 2;
+ }
+ return sformat("{}.ip6.arpa", join(".", a));
+}
+
// public
uint8_t IPAddressV6::getNthMSByte(size_t byteIndex) const {
const auto highestIndex = byteCount() - 1;
if (byteIndex > highestIndex) {
- throw std::invalid_argument(to<string>("Byte index must be <= ",
- to<string>(highestIndex), " for addresses of type :",
+ throw std::invalid_argument(sformat(
+ "Byte index must be <= {} for addresses of type: {}",
+ highestIndex,
detail::familyNameStr(AF_INET6)));
}
return bytes()[byteIndex];
// protected
const ByteArray16 IPAddressV6::fetchMask(size_t numBits) {
- static const uint8_t bits = bitCount();
+ static const size_t bits = bitCount();
if (numBits > bits) {
throw IPAddressFormatException("IPv6 addresses are 128 bits.");
}
- // masks_ is backed by an array so is zero indexed
- return masks_[numBits];
+ if (numBits == 0) {
+ return {{0}};
+ }
+ constexpr auto _0s = uint64_t(0);
+ constexpr auto _1s = ~_0s;
+ auto const fragment = Endian::big(_1s << ((128 - numBits) % 64));
+ auto const hi = numBits <= 64 ? fragment : _1s;
+ auto const lo = numBits <= 64 ? _0s : fragment;
+ uint64_t const parts[] = {hi, lo};
+ ByteArray16 arr;
+ std::memcpy(arr.data(), parts, sizeof(parts));
+ return arr;
+}
+
+// public static
+CIDRNetworkV6 IPAddressV6::longestCommonPrefix(
+ const CIDRNetworkV6& one,
+ const CIDRNetworkV6& two) {
+ auto prefix = detail::Bytes::longestCommonPrefix(
+ one.first.addr_.bytes_, one.second, two.first.addr_.bytes_, two.second);
+ return {IPAddressV6(prefix.first), prefix.second};
}
// protected
-bool IPAddressV6::inBinarySubnet(const std::array<uint8_t, 2> addr,
- size_t numBits) const {
- const unsigned char* subbytes = mask(numBits).bytes();
- return (std::memcmp(addr.data(), subbytes, 2) == 0);
-}
-
-// static private
-const std::array<ByteArray16, 129> IPAddressV6::masks_ = {{
-/* /0 */ {{ 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /1 */ {{ 0x80,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /2 */ {{ 0xc0,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /3 */ {{ 0xe0,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /4 */ {{ 0xf0,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /5 */ {{ 0xf8,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /6 */ {{ 0xfc,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /7 */ {{ 0xfe,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /8 */ {{ 0xff,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /9 */ {{ 0xff,0x80,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /10 */ {{ 0xff,0xc0,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /11 */ {{ 0xff,0xe0,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /12 */ {{ 0xff,0xf0,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /13 */ {{ 0xff,0xf8,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /14 */ {{ 0xff,0xfc,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /15 */ {{ 0xff,0xfe,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /16 */ {{ 0xff,0xff,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /17 */ {{ 0xff,0xff,0x80,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /18 */ {{ 0xff,0xff,0xc0,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /19 */ {{ 0xff,0xff,0xe0,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /20 */ {{ 0xff,0xff,0xf0,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /21 */ {{ 0xff,0xff,0xf8,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /22 */ {{ 0xff,0xff,0xfc,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /23 */ {{ 0xff,0xff,0xfe,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /24 */ {{ 0xff,0xff,0xff,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /25 */ {{ 0xff,0xff,0xff,0x80,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /26 */ {{ 0xff,0xff,0xff,0xc0,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /27 */ {{ 0xff,0xff,0xff,0xe0,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /28 */ {{ 0xff,0xff,0xff,0xf0,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /29 */ {{ 0xff,0xff,0xff,0xf8,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /30 */ {{ 0xff,0xff,0xff,0xfc,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /31 */ {{ 0xff,0xff,0xff,0xfe,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /32 */ {{ 0xff,0xff,0xff,0xff,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /33 */ {{ 0xff,0xff,0xff,0xff,
- 0x80,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /34 */ {{ 0xff,0xff,0xff,0xff,
- 0xc0,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /35 */ {{ 0xff,0xff,0xff,0xff,
- 0xe0,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /36 */ {{ 0xff,0xff,0xff,0xff,
- 0xf0,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /37 */ {{ 0xff,0xff,0xff,0xff,
- 0xf8,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /38 */ {{ 0xff,0xff,0xff,0xff,
- 0xfc,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /39 */ {{ 0xff,0xff,0xff,0xff,
- 0xfe,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /40 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /41 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0x80,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /42 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xc0,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /43 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xe0,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /44 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xf0,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /45 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xf8,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /46 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xfc,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /47 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xfe,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /48 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0x00,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /49 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0x80,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /50 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xc0,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /51 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xe0,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /52 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xf0,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /53 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xf8,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /54 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xfc,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /55 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xfe,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /56 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0x00,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /57 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0x80,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /58 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xc0,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /59 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xe0,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /60 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xf0,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /61 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xf8,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /62 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xfc,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /63 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xfe,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /64 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /65 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0x80,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /66 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xc0,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /67 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xe0,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /68 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xf0,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /69 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xf8,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /70 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xfc,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /71 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xfe,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /72 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /73 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0x80,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /74 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xc0,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /75 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xe0,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /76 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xf0,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /77 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xf8,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /78 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xfc,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /79 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xfe,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /80 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0x00,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /81 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0x80,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /82 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xc0,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /83 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xe0,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /84 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xf0,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /85 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xf8,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /86 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xfc,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /87 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xfe,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /88 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0x00,
- 0x00,0x00,0x00,0x00 }},
-/* /89 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0x80,
- 0x00,0x00,0x00,0x00 }},
-/* /90 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xc0,
- 0x00,0x00,0x00,0x00 }},
-/* /91 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xe0,
- 0x00,0x00,0x00,0x00 }},
-/* /92 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xf0,
- 0x00,0x00,0x00,0x00 }},
-/* /93 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xf8,
- 0x00,0x00,0x00,0x00 }},
-/* /94 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xfc,
- 0x00,0x00,0x00,0x00 }},
-/* /95 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xfe,
- 0x00,0x00,0x00,0x00 }},
-/* /96 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0x00,0x00,0x00,0x00 }},
-/* /97 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0x80,0x00,0x00,0x00 }},
-/* /98 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xc0,0x00,0x00,0x00 }},
-/* /99 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xe0,0x00,0x00,0x00 }},
-/* /100 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xf0,0x00,0x00,0x00 }},
-/* /101 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xf8,0x00,0x00,0x00 }},
-/* /102 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xfc,0x00,0x00,0x00 }},
-/* /103 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xfe,0x00,0x00,0x00 }},
-/* /104 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0x00,0x00,0x00 }},
-/* /105 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0x80,0x00,0x00 }},
-/* /106 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xc0,0x00,0x00 }},
-/* /107 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xe0,0x00,0x00 }},
-/* /108 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xf0,0x00,0x00 }},
-/* /109 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xf8,0x00,0x00 }},
-/* /110 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xfc,0x00,0x00 }},
-/* /111 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xfe,0x00,0x00 }},
-/* /112 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0x00,0x00 }},
-/* /113 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0x80,0x00 }},
-/* /114 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xc0,0x00 }},
-/* /115 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xe0,0x00 }},
-/* /116 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xf0,0x00 }},
-/* /117 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xf8,0x00 }},
-/* /118 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xfc,0x00 }},
-/* /119 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xfe,0x00 }},
-/* /120 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0x00 }},
-/* /121 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0x80 }},
-/* /122 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xc0 }},
-/* /123 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xe0 }},
-/* /124 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xf0 }},
-/* /125 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xf8 }},
-/* /126 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xfc }},
-/* /127 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xfe }},
-/* /128 */ {{ 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff }},
-}};
-
-} // folly
+bool IPAddressV6::inBinarySubnet(
+ const std::array<uint8_t, 2> addr,
+ size_t numBits) const {
+ auto masked = mask(numBits);
+ return (std::memcmp(addr.data(), masked.bytes(), 2) == 0);
+}
+} // namespace folly
projects / folly.git / blobdiff