Commit e687a58f authored by Committed by Juliusz Chroboczek
Fix bug allowing the comparison of v4 and v6 prefixes.
When the v6 prefix is ::/0, then it is considered as less specific than any v4-mapped prefix. Remark that "no source prefix" is encoded by "src_plen == 0". This might be an issue, since "src_plen == 0" means ::/0, a v6 prefix. So the route (220.127.116.11/32 from 0.0.0.0/0) is internally represented by (18.104.22.168/32 from ::/0). When compared with (::/0 from 2001:db8::/32), the two source prefixes are comparable. This is not a problem in practice, since 2 pairs of prefixes are disjoint whether the dst prefixes or the src prefixes are disjoint.
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