Messages in this thread | | | Date | Thu, 4 Mar 2004 00:56:29 +0100 | From | Michael Weiser <> | Subject | Re: [ANNOUNCE] udev 021 release |
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On Wed, Mar 03, 2004 at 07:15:00AM -0800, Greg KH wrote: > > > Major changes from the 019 version: > > > - new variable $local for the udev.permission file allows > > > permissions to be set for the currently logged in user. > > Yay, just the other day I thought that might be a nice feature in > > concert with RedHat's/Fedora's pam_console module. Am I right in > > assuming that the current utmp based code will give the file to the user > > that most recently logged into the local console? This could cause some > > confusion with the pam_console-method which gives files to the user that > > logged in *first* on a local console. > I don't know, care to test it out? Aye. It's even worse. The user logged into the lowest-numbered console will get owner of the newly created file when using $local.
So if I log into tty2 and plug in my USB stick I will be owner of /dev/sda1. If another guy comes along, logs into tty1, unplugs my USB stick and replugs it, he'll be owner of /dev/sda1. But if I log out now, re-login on tty2 and replug the stick again, I won't get the owner of /dev/sda1 but the other guy again. This will certainly break things - at least on Fedora Core 1. Maybe it's different with other distributions/glibc/utmp variants/versions.
Would it be an option to check for /var/run/console.lock and use the username stored there by pam_console if present? -- Micha - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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