From 36649663402c712126e0f64a1d6fc0ba4faf1ad1 Mon Sep 17 00:00:00 2001 From: Adam Ierymenko Date: Thu, 17 Sep 2015 21:30:32 -0700 Subject: Generate local IPv6 addresses from network IDs and addresses. --- node/InetAddress.cpp | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'node/InetAddress.cpp') diff --git a/node/InetAddress.cpp b/node/InetAddress.cpp index 1942c4cd..e542f0d4 100644 --- a/node/InetAddress.cpp +++ b/node/InetAddress.cpp @@ -399,4 +399,30 @@ InetAddress InetAddress::makeIpv6LinkLocal(const MAC &mac) return InetAddress(sin6); } +InetAddress InetAddress::makeIpv6rfc4193(uint64_t nwid,uint64_t zeroTierAddress) + throw() +{ + InetAddress r; + struct sockaddr_in6 *const sin6 = reinterpret_cast(&r); + sin6->sin6_family = AF_INET6; + sin6->sin6_addr.s6_addr[0] = 0xfd; + sin6->sin6_addr.s6_addr[1] = (uint8_t)(nwid >> 56); + sin6->sin6_addr.s6_addr[2] = (uint8_t)(nwid >> 48); + sin6->sin6_addr.s6_addr[3] = (uint8_t)(nwid >> 40); + sin6->sin6_addr.s6_addr[4] = (uint8_t)(nwid >> 32); + sin6->sin6_addr.s6_addr[5] = (uint8_t)(nwid >> 24); + sin6->sin6_addr.s6_addr[6] = (uint8_t)(nwid >> 16); + sin6->sin6_addr.s6_addr[7] = (uint8_t)(nwid >> 8); + sin6->sin6_addr.s6_addr[8] = (uint8_t)nwid; + sin6->sin6_addr.s6_addr[9] = 0x99; + sin6->sin6_addr.s6_addr[10] = 0x93; + sin6->sin6_addr.s6_addr[11] = (uint8_t)(zeroTierAddress >> 32); + sin6->sin6_addr.s6_addr[12] = (uint8_t)(zeroTierAddress >> 24); + sin6->sin6_addr.s6_addr[13] = (uint8_t)(zeroTierAddress >> 16); + sin6->sin6_addr.s6_addr[14] = (uint8_t)(zeroTierAddress >> 8); + sin6->sin6_addr.s6_addr[15] = (uint8_t)zeroTierAddress; + sin6->sin6_port = Utils::hton((uint16_t)88); // /88 includes 0xfd + network ID, discriminating by device ID below that + return r; +} + } // namespace ZeroTier -- cgit v1.2.3