Date: Mon, 10 Nov 2003 13:14:59 -0500 (EST) From: Robert Watson <rwatson@freebsd.org> To: Bruce M Simpson <bms@spc.org> Cc: freebsd-net@freebsd.org Subject: Re: Viewing multicast group membership? Message-ID: <Pine.NEB.3.96L.1031110131422.59199A-100000@fledge.watson.org> In-Reply-To: <20031110073822.GA20611@saboteur.dek.spc.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Mon, 10 Nov 2003, Bruce M Simpson wrote: > Pardon me if this is an FAQ or answered somewhere else. > > I've had a quick skim through the man pages and the source, and can't > seem to find a means of listing which IPv4 multicast groups a host is > currently a member of. > > The net.igmp.stats sysctl only seems to maintain general protocol level > statistics; it doesn't contain group information. This is the sysctl > reported by 'netstat -g'. > > I guess I need to write some code to open /dev/kmem and walk > ifmultihead. Or does someone have a hack lying around for this I can > clean up and commit? I can't speak to existing code for this, but I can say I have a preference for having a sysctl version of the code available in the vague hopes that someday we can drop the setgid kmem bit from netstat... Robert N M Watson FreeBSD Core Team, TrustedBSD Projects robert@fledge.watson.org Network Associates Laboratories
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.NEB.3.96L.1031110131422.59199A-100000>