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libi2pd: mark additional ipv6 addresses/nets as reserved

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This adds :: (undefined address), ::1 (loopback address) as well as
ff00::/8 (multicast prefix) to reservedIPv6Ranges.

A bunch of nodes seem to be publishing bogus addresses (mostly ::1)
in the netDB, resulting in unnecessary tunnel build failures.
This commit is contained in:
Simon Vetter 2021-07-30 21:23:27 +02:00
parent 1e01c30e63
commit 40ec4e8b59
1 changed files with 4 additions and 1 deletions
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5
libi2pd/util.cpp
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@ -555,7 +555,10 @@ namespace net
static const std::vector< std::pair<boost::asio::ip::address_v6::bytes_type, boost::asio::ip::address_v6::bytes_type> > reservedIPv6Ranges {
address_pair_v6("2001:db8::", "2001:db8:ffff:ffff:ffff:ffff:ffff:ffff"),
address_pair_v6("fc00::", "fdff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"),
address_pair_v6("fe80::", "febf:ffff:ffff:ffff:ffff:ffff:ffff:ffff")
address_pair_v6("fe80::", "febf:ffff:ffff:ffff:ffff:ffff:ffff:ffff"),
address_pair_v6("ff00::", "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"),
address_pair_v6("::", "::"),
address_pair_v6("::1", "::1")
};
boost::asio::ip::address_v6::bytes_type ipv6_address = host.to_v6 ().to_bytes ();