Date: Thu, 10 Apr 2014 03:52:30 -0400 From: Rich Felker <dalias@...ifal.cx> To: musl@...ts.openwall.com Subject: Re: if_nameindex/getifaddrs and dhcpcd issue On Thu, Apr 10, 2014 at 09:40:22AM +0200, u-igbb@...ey.se wrote: > On Wed, Apr 09, 2014 at 06:20:41PM -0400, Rich Felker wrote: > > Does if_nameindex "work" (modulo the issues with it) on BSD linux > > emulation now, and would it fail if we switched to netlink or /proc > > based? This is not necessarily a show-stopper but it would be nice if > > we had a workaround, and it's something where we should have input > > from users running musl binaries on BSD. > > I'm not aware of which of the binaries may be calling if_nameindex. The > ones which are being used continuously are Samba and Coda servers running > on FreeBSD (for the sake of ZFS), their current production versions are > still linked to uclibc. > > Occationally I run "everything" i.e. a whole user environment in the > form of Linux binaries on NetBSD but it will take some time before this > happens and I test if_nameindex there. I think these functions are mainly useful for network-configuration utilities, not general user-facing apps. But I do want to make things work for users who want to run a complete userspace of musl-linked linux binaries on a BSD kernel. At the moment I'm leaning towards a netlink-based approach despite my moderate disgust with the netlink API simply because the alternative (/proc) does not seem as possible as I thought it was; I can't see any way to get a good parsable list of devices, including unconfigured devices and aliases/multi-addresses, from /proc. If somebody knows how and has a proposal for how it could be done, please speak up. Rich
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