On Tue, May 15, 2007 at 01:53:47PM -0400, Jim Stapleton wrote: > I have my /etc/devfs.conf file set to make some of my files > mountable/readable directly for normal users (specifically CD/DVD > devices). However, the original permissions are being retained. Am I > doing something wrong in the setup? (I have rebooted the machine since > these entries were created) > devfs.conf: > ======================================== > link acd0 cdrom > link acd0 dvd > > link acd0 dvd0 > link acd1 dvd1 > > link acd0 cdrom0 > link acd1 cdrom1 > > own acd0 root:operator > own acd1 root:operator > own dvd root:operator > own cdrom root:operator > own dvd0 root:operator > own dvd1 root:operator > own cdrom0 root:operator > own cdrom1 root:operator > > perm acd0 0770 > perm acd1 0770 > perm dvd 0770 > perm cdrom 0770 > perm dvd0 0770 > perm dvd1 0770 > perm cdrom0 0770 > perm cdrom0 0770 <snip> > the majority of the relevant files look like this: > ======================================== > [EMAIL PROTECTED] 13:51:03 (0) /etc > ls -l /dev | grep cd > crwxrwx--- 1 root operator 0, 89 May 10 05:31 acd0 > crwxrwx--- 1 root operator 0, 90 May 10 05:31 acd1 > lrwxr-xr-x 1 root wheel 4 May 10 05:32 cdrom -> acd0 > lrwxr-xr-x 1 root wheel 4 May 10 05:32 cdrom0 -> acd0 > lrwxr-xr-x 1 root wheel 4 May 10 05:32 cdrom1 -> acd1 > lrwxr-xr-x 1 root wheel 4 May 10 05:32 dvd -> acd0 > lrwxr-xr-x 1 root wheel 4 May 10 05:32 dvd0 -> acd0 > lrwxr-xr-x 1 root wheel 4 May 10 05:32 dvd1 -> acd1 > ======================================== > > > Their permssions are not correct at all, except for acd0/acd1. Any > suggestions on what would cause this one?
You cannot set permissions on symbolic links. Check out the relevant code in /etc/rc.d/devfs: p*) for device in ${devicelist}; do if [ -c ${device} ]; then chmod ${parameter} ${device} fi done ;; Without the '-h' argument to chmod, it changes the permissions on the device, not on the link! Changing permissions on a symbolic link doesn't seem to accomplish anything, btw. If I create a link to a regular file and chmod it to 000, I can still read/write the linked file. If you want all users to have access to the cdrom, use this: own cd0 root:cdrom perm cd0 0666 A bit less open would be: own cd0 root:cdrom perm cd0 0660 which restricts access to the cdrom to members of the cdrom group. AFAIK, you don't need to set execute bits on devices. Roland -- R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725)
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