Hello. Arjan van de Ven wrote: > when will you post this filesystem for inclusion into kernel.org kernel? > (and please really consider posting the patch together with that patch) > (also, if you can give a pointer to the source code of this filesystem > you might even get early code review) I have proposed this filesystem at http://lkml.org/lkml/2004/11/1/48 . In short, the filesystem I'm developing is a trivial device filesystem that provides protection mechanism against tampering. Reasons I don't use devfs/udev or fuse or LSM for /dev are: The devfs/udev don't provide protection mechanism against tampering. I don't know implementation that can enforce filename and it's attributes. Label based access control like SELinux doesn't distinguish /dev/sda1 and /dev/sda2, do they? If a process who is permitted to unlink and create /dev/sda1 and /dev/sda2 is cracked, who can ensure that /dev/sda1 is block-8-1 and /dev/sda2 is block-8-2? A situation /dev/sda1 is block-8-2 and /dev/sda2 is block-8-1 can happen. /dev has to be valid throughout the lifetime of system (i.e. from /sbin/init till power failure). Filesystems using fuse will freeze when a system starts /usr/bin/killall at shutdown script, where it is too early to stop working of /dev partition. LSM is used by SELinux, thus there is unlikely chance to call my module to validate a device file's filename and it's attributes. The latest snapshot (which is not following codingstyle) is at http://svn.sourceforge.jp/cgi-bin/viewcvs.cgi/*checkout*/trunk/1.5.x/ccs-patch/include/linux/syaoran.h?content-type=text%2Fplain&rev=588&root=tomoyo http://svn.sourceforge.jp/cgi-bin/viewcvs.cgi/*checkout*/trunk/1.5.x/ccs-patch/fs/syaoran_2.6.c?content-type=text%2Fplain&rev=614&root=tomoyo If there is a chance for inclusion into kernel.org kernel, I'm willing to fix codingstyle and submit immediately. Thank you. - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
