[re-sending email with as non-html] Hey,
I would like to deprecate net.inet6.ip6.deembed_scopeid sysctl while leaving the current default behaviour. This sysctl controls whether IPv6 scope is embedded in the IPv6 address or not when reading or writing route/interface/ifaddr data via rtsock/sysctl. Embedding scope in the address is a hack, that overwrites some of the bits that can be used otherwise. It was probably implemented that way to simplify route table interactions, as rtable uses this hack to add link-local addresses to the same radix tree. The change to fix the userland api by filling in sin6_scopeid and avoid touching IPv6 address was added in r243187, 7 years ago. It provided the sysctl in question, allowing to preserve compatibility with older applications, by reverting to the old behavior. 7 years looks like enough timeframe for the applications to be adjusted. Unless any major objections arise, I'm going to remove the code and make de-embedded IPv6 addresses the only option on July 5 2020. /Alexander _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
