Date: Wed, 29 Jul 2009 12:19:35 +0000 (UTC) From: "Bjoern A. Zeeb" <bz@FreeBSD.org> To: Mykola Dzham <freebsd@levsha.org.ua> 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: <20090729121834.B245@maildrop.int.zabbadoz.net> In-Reply-To: <20090729113638.GC20855@expo.ukrweb.net> References: <20090725163207.GP39538@expo.ukrweb.net> <20090727141808.R245@maildrop.int.zabbadoz.net> <20090729113638.GC20855@expo.ukrweb.net>
next in thread | previous in thread | raw e-mail | index | archive | help
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.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20090729121834.B245>