Re: getifaddrs() and IPv6 link-local addresses

Le 2012-08-31 03:34, Tomek Mrugalski a =E9crit :
> If you decide that for some reason you do not want to fix this,

I think it's pretty clear that something has to be fixed.

I'm wondering why FreeBSD doesn't have the same issues. Looking at the=20
code I can't figure it out.

> What's the recommended API a userland application (dhcpv6 client) shoul=
d
> use for adding/updating lifetimes/removing IPv6 addresses on an
> interface?

It's all ioctls.

add: SIOCAIFADDR_IN6
remove: SIOCDIFADDR_IN6
update lifetime: SIOCSIFALIFETIME_IN6

Check out ifconfig.c for examples.
http://www.openbsd.org/cgi-bin/cvsweb/src/sbin/ifconfig/ifconfig.c

> How about the same for configuring prefixes?

Not sure what you mean. The SIOCAIFADDR_IN6 ioctl takes a struct=20
in6_aliasreq argument, which has a prefix mask member.

Simon