On Wed, Jan 13, 2021, 4:21 AM Hal Murray via devel <devel@ntpsec.org> wrote:
> While looking for old mail tangled with #690, I stumbled into this, from > Eric. > Did we ever do anything with this? This seems like a wonderful > opportunity. > > The catch may be that ntpd needs to know which interface a packet arrived > on, > actually the destination IP address. > > ---------- > > You missed some interesting discussion on IRC last night (for after > release). While working on the CVEs Daniel has spotted that all the > iteration-over-interfaces stuff (which is 75% of ntp_io.c and almost > all of what's left of the ISC library) is unnecessary if we trust > IPv4/IPv6 wildcard addresses to work (which are POSIX). > > This is kind of a big deal not just because of the LOC reduction but > because it would let us sever a major and several minor platform > dependencies - not just getifaddrs but the routing-sockets stuff as > well. > My rat brain is whispering 'no'. Something about link-local addresses, people having retrograde configs, broadcast, and multicast. Two out of four is not too bad. I think this is the third(?) Time this has come up. The previous time seems to have been May/June 2018. [1][2] [1] https://lists.ntpsec.org/pipermail/devel/2018-May/thread.html [2] https://lists.ntpsec.org/pipermail/devel/2018-June/thread.html
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