ip-address: Add ipv6_ip_matches #6
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legionus
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Aug 23, 2025
This function takes two arguments, an IPv6 address and a prefix with length, and checks that this address is in this prefix. We also add a hopefully decently complete set of tests. Signed-off-by: Arseny Maslennikov <ar@cs.msu.ru>
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This function takes two arguments, an IPv6 address and a prefix with length, and checks that this address is, in fact, in this prefix.
We also add a hopefully complete enough set of tests.
It has analogous semantics to
ipv4_ip_subnet; the name is different because the word "subnet" does not really fit to universally describe an address range with common leading bits; many prefixes can be used to number a single subnet, a prefix might not correspond to a particular subnet at all (esp. with DHCP Prefix Delegation), etc. There's a short note on that in the doc page.