From owner-freebsd-current@FreeBSD.ORG Wed Jul 29 12:20:09 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1F901106566C; Wed, 29 Jul 2009 12:20:09 +0000 (UTC) (envelope-from bz@FreeBSD.org) Received: from mail.cksoft.de (mail.cksoft.de [195.88.108.3]) by mx1.freebsd.org (Postfix) with ESMTP id 900B68FC14; Wed, 29 Jul 2009 12:20:08 +0000 (UTC) (envelope-from bz@FreeBSD.org) Received: from localhost (amavis.fra.cksoft.de [192.168.74.71]) by mail.cksoft.de (Postfix) with ESMTP id 43E2F41C70A; Wed, 29 Jul 2009 14:20:07 +0200 (CEST) X-Virus-Scanned: amavisd-new at cksoft.de Received: from mail.cksoft.de ([195.88.108.3]) by localhost (amavis.fra.cksoft.de [192.168.74.71]) (amavisd-new, port 10024) with ESMTP id DVMjxMaSXb0e; Wed, 29 Jul 2009 14:20:06 +0200 (CEST) Received: by mail.cksoft.de (Postfix, from userid 66) id 4333141C705; Wed, 29 Jul 2009 14:20:06 +0200 (CEST) Received: from maildrop.int.zabbadoz.net (maildrop.int.zabbadoz.net [10.111.66.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.int.zabbadoz.net (Postfix) with ESMTP id 3F1164448E6; Wed, 29 Jul 2009 12:19:35 +0000 (UTC) Date: Wed, 29 Jul 2009 12:19:35 +0000 (UTC) From: "Bjoern A. Zeeb" X-X-Sender: bz@maildrop.int.zabbadoz.net To: Mykola Dzham In-Reply-To: <20090729113638.GC20855@expo.ukrweb.net> Message-ID: <20090729121834.B245@maildrop.int.zabbadoz.net> References: <20090725163207.GP39538@expo.ukrweb.net> <20090727141808.R245@maildrop.int.zabbadoz.net> <20090729113638.GC20855@expo.ukrweb.net> X-OpenPGP-Key: 0x14003F198FEFA3E77207EE8D2B58B8F83CCF1842 MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-jail@freebsd.org, freebsd-current@freebsd.org, Jamie Gritton Subject: Re: 8.0 still allow creating ipv6 udp socket in jail without ipv6 ip X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 29 Jul 2009 12:20:09 -0000 On Wed, 29 Jul 2009, Mykola Dzham wrote: Hi, > Bjoern A. Zeeb wrote: >> On Sat, 25 Jul 2009, Mykola Dzham wrote: >> >> Hi, >> >>> After r188146 creating tcp ipv6 socket in jail without ipv6 ip is not >>> allowed, but udp socket is allowed. >> >> I cannot really follow what you are trying to say as wrt IPv4 and IPv6 >> sockets and what about UDP. >> >> Your sample further down is trying to use an IPv4 address on an IPv6 >> Datagram socket which is an error either way. > > Some java programms attempt to use ipv6 sockets, then use ipv4 if > socket(AF_INET6,...) fail. My sample imitate this > >> Prior to FreeBSD 7.2 IPv6 hadn't been supported at all for jails. >> >> With 7.2 it was possible to create IPv6 sockets (but only shortly and >> then fail on bind/connect/...). With the commit you reference the >> "Protocol not supported" came back in case there was no address of >> that address family for a given jail. >> >> With 8 the primary syntax for jails has changed and the "backward >> compat mode" again allows you to create a socket on a jail even if >> no address of the same family was configured for the jail. >> >> This should be addressed by the following patch: >> http://people.freebsd.org/~bz/20090727-01-jail8-legacy.diff >> >> Can you give it a try and report if that fixes your problem? > > Patch aplied cleanly on r195820 , but jail can not start after patching: > > # jail -l -U root -i /usr/home/d/guests/tap2 tap2.my.domain.com 10.112.0.151 /bin/sh /etc/rc > jail: ip6: unknown boolean value "disable" r195820 is too old; but Jamie has a better solution; I would suggest to backout the jail(8) patch and wait for the next two commits of Jamie to HEAD and then update the machine again. /bz -- Bjoern A. Zeeb The greatest risk is not taking one.