Date: Wed, 9 Apr 2014 09:13:48 +0200 From: Natanael Copa <ncopa@...inelinux.org> To: musl@...ts.openwall.com Cc: dalias@...ifal.cx Subject: Re: if_nameindex/getifaddrs and dhcpcd issue On Tue, 8 Apr 2014 11:38:41 -0400 Rich Felker <dalias@...ifal.cx> wrote: > On Tue, Apr 08, 2014 at 03:16:10PM +0100, Justin Cormack wrote: > > I was under the impression that the ioctl-based interface for ipv6 is > > incomplete under Linux. > > Probably "incomplete" in a sense that it can't do some special-purpose > stuff that most users don't need. You cannot get the configured ipv6 addresses via SIOCGIFCONF. That is why musl needs to parse /proc for that. ioctl-based interface for ipv4 is also "incomplete". You cannot get anything else than the primary address so current musl getifaddrs will not give you all configured ipv4 addresses. > Busybox entirely avoids netlink, as > far as I can tell, Not entirely. the iproute implementation in bb uses netlink, but you can of course disable that during configuration. A quick grep also indicate that busybox ifplugd uses netlink. > and it's perfectly acceptable for setting up ipv6, > at least in simple setups. You don't even need busybox's iproute2 > workalikes; ifconfig and route work fine. And if you do that, then you cannot assign more than one ip addr on each interface. (you'll have to use alias, eth0:1 for that), but yes, thats no longer a simple setup. -nc
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