Date: Tue, 24 Jul 2007 16:45:49 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Boris Samorodov <bsam@ipt.ru> Cc: freebsd-current@FreeBSD.org Subject: Re: mount_nullfs inside a jail Message-ID: <20070724144549.GA12473@garage.freebsd.pl> In-Reply-To: <78011660@srv.sem.ipt.ru> References: <97732929@srv.sem.ipt.ru> <20070723133333.GF5456@garage.freebsd.pl> <78011660@srv.sem.ipt.ru>
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--UugvWAfsgieZRqgk Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Jul 24, 2007 at 06:03:47PM +0400, Boris Samorodov wrote: > On Mon, 23 Jul 2007 15:33:33 +0200 Pawel Jakub Dawidek wrote: > > As you can see, nullfs doesn't have 'jail' flag. The only jail-friendly > > file system currently is ZFS. Nullfs is a good candidate for a > > jail-friendly file system, but is not marked as such yet. >=20 > Does somebody know if only a flag is missing or not? You may try changing the line in /sys/fs/nullfs/null_vfsops.c from: VFS_SET(null_vfsops, nullfs, VFCF_LOOPBACK); to: VFS_SET(null_vfsops, nullfs, VFCF_LOOPBACK | VFCF_JAIL); but I don't think anyone did any security analysis of this yet. --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --UugvWAfsgieZRqgk Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFGphCdForvXbEpPzQRAqw1AJ0Q6YoZ+ZKjfBvMTUSmncoCb2l9wACeL6sa VI3bbB7KqIrfICYfl3gfO2M= =+oDv -----END PGP SIGNATURE----- --UugvWAfsgieZRqgk--
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