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| author | Adam Ierymenko <adam.ierymenko@gmail.com> | 2016-02-10 11:06:26 -0800 |
|---|---|---|
| committer | Adam Ierymenko <adam.ierymenko@gmail.com> | 2016-02-10 11:06:26 -0800 |
| commit | 82348e1537442f9f167e4365f3e3024cf70b2b8d (patch) | |
| tree | ece1e798eea8f553ad00f516b6dac68f0765897b /node | |
| parent | 10bb9919f15a7777905f3d43ca01325a229203c7 (diff) | |
| download | infinitytier-82348e1537442f9f167e4365f3e3024cf70b2b8d.tar.gz infinitytier-82348e1537442f9f167e4365f3e3024cf70b2b8d.zip | |
Temporarily blacklist he.net IPv6 tunnel addresses for paths: these usually have a very low MTU which causes packet loss and other issues.
Diffstat (limited to 'node')
| -rw-r--r-- | node/Path.hpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/node/Path.hpp b/node/Path.hpp index be64f334..cb7622d3 100644 --- a/node/Path.hpp +++ b/node/Path.hpp @@ -243,6 +243,14 @@ public: case InetAddress::IP_SCOPE_PSEUDOPRIVATE: case InetAddress::IP_SCOPE_SHARED: case InetAddress::IP_SCOPE_GLOBAL: + if (a.ss_family == AF_INET6) { + // TEMPORARY HACK: for now, we are going to blacklist he.net IPv6 + // tunnels due to very spotty performance and low MTU issues over + // these IPv6 tunnel links. + const uint8_t *ipd = reinterpret_cast<const uint8_t *>(reinterpret_cast<const struct sockaddr_in6 *>(&a)->sin6_addr.s6_addr); + if ((ipd[0] == 0x20)&&(ipd[1] == 0x01)&&(ipd[2] == 0x04)&&(ipd[3] == 0x70)) + return false; + } return true; default: return false; |