Date: Tue, 7 Jul 2009 11:08:46 +0000 (UTC) From: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net> To: Alexander Leidinger <Alexander@Leidinger.net> Cc: freebsd-jail@freebsd.org Subject: Re: Multicast in jail? Message-ID: <20090707110601.U245@maildrop.int.zabbadoz.net> In-Reply-To: <20090707110149.93723i84ufre1vco@webmail.leidinger.net> References: <10880739.281246929242603.JavaMail.root@mail> <20090707110149.93723i84ufre1vco@webmail.leidinger.net>
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On Tue, 7 Jul 2009, Alexander Leidinger wrote: > Quoting Bill Marquette <bill.marquette@ucsecurity.com> (from Mon, 6 Jul 2009 > 20:14:02 -0500 (CDT)): > >> I'm trying to run Avahi in a jail, much the same as Alexander Leidinger in >> this email from late last year >> http://www.mail-archive.com/freebsd-jail@freebsd.org/msg00587.html. I >> couldn't find any replies to that thread and it seems that I'm running into >> the same issues - the service announcements make it on the wire and the >> other devices in the network see them. > > So far I have nothing working. > > I assume that the mcast traffic is not arriving at all IPs. <wild > guess>Either because on overly restrictive jail check, and/or just because > there's no code which is distributing the traffic to all IPs.</wild guess> > > It seems kern_jail.c is a place to check if there's some code which handles No, in_pcb.c in6_pcb.c in_m*.[ch] in6_m*.[ch] are the files you need as a starting point; there's more and more and more. > this. Maybe prison_check_ip[46] if mcast is on top of this, or something new > to write if mcast is a different "AF". Again, this is a wild guess, I don't > have enough understanding of the network code in the kernel to even make > educated guesses about the real reason. But you first will have to understand all implications, that need a proper design plan and after that thoughtout implementation. Alternatively I wouldn't wonder if enabling raw sockets would give what you want or you'll wait for virtualization to be ready. /bz -- Bjoern A. Zeeb The greatest risk is not taking one.
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