Date: Wed, 29 Jul 2009 14:36:38 +0300 From: Mykola Dzham <freebsd@levsha.org.ua> To: "Bjoern A. Zeeb" <bz@FreeBSD.org> Cc: freebsd-jail@freebsd.org, freebsd-current@freebsd.org, Jamie Gritton <jamie@freebsd.org> Subject: Re: 8.0 still allow creating ipv6 udp socket in jail without ipv6 ip Message-ID: <20090729113638.GC20855@expo.ukrweb.net> In-Reply-To: <20090727141808.R245@maildrop.int.zabbadoz.net> References: <20090725163207.GP39538@expo.ukrweb.net> <20090727141808.R245@maildrop.int.zabbadoz.net>
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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" -- LEFT-(UANIC|RIPE) JID: levsha@jabber.net.ua PGP fingerprint: 2A0B 7423 51AF B19B 74D5 31CA 2BFF 42F1 8094 7652
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