From: Stefan Schweizer <sschweizer@gmail.com>
To: linux-hotplug@vger.kernel.org
Subject: Re: udev and cdrom permissions
Date: Wed, 10 Nov 2004 23:25:26 +0000 [thread overview]
Message-ID: <e796392204111015256dec966a@mail.gmail.com> (raw)
In-Reply-To: <e796392204111014024814f58@mail.gmail.com>
On Wed, 10 Nov 2004 23:10:49 +0100, Marco d'Itri <md@linux.it> wrote:
> md@wonderland:~$cat /etc/udev/simple-cd-aliases.rules
> # grouping of optical drives from multiple kernel subsystems
> KERNEL="sr*", NAME="%k", SYMLINK="cdrom%e"
> KERNEL="scd*", NAME="%k", SYMLINK="cdrom%e"
> KERNEL="pcd*", NAME="%k", SYMLINK="cdrom%e"
> KERNEL="hd[a-z]", NAME="%k", SYMLINK="cdrom%e", PROGRAM="/bin/cat /proc/ide/%k/media", RESULT="cdrom"
>
> md@wonderland:~$
>
> Just add GROUP statements.
This is a very good idea. ide-devfs.sh should be modified to also
produce GROUP= output.
And of course the default rule to also contain the GROUP= statement,
calculated by ide-devfs.sh.
Change needed to make this work:
--- namedev.c.orig 2004-11-11 00:22:11.646609480 +0100
+++ namedev.c 2004-11-11 00:23:24.228575344 +0100
@@ -785,6 +785,11 @@
goto done;
udev->partitions = dev->partitions;
+ if (dev->group[0] != '\0') {
+ strfieldcpy(udev->group, dev->group);
+ apply_format(udev, udev->group, sizeof(udev->group),
class_dev, sysfs_device);
+
+ }
/* get permissions given in rule */
set_empty_perms(udev, dev->mode,
in /etc/udev/rules.d/udev.rules:
BUS="ide", KERNEL="hd*", PROGRAM="/etc/udev/scripts/ide-devfs.sh %k %b
%n", NAME="%k", SYMLINK="%c{1} %c{2}", GROUP="%c{3}"
in /etc/udev/scripts/ide-devfs.sh:
echo ide/host${HOST}/bus${BUS}/target${TARGET}/lun0/cd
cdroms/cdrom`get_dev_number $1 cdrom` cdrom
elif [ "${MEDIA}" = "floppy" ]; then
echo
ide/host${HOST}/bus${BUS}/target${TARGET}/lun0/disc
floppies/floppy`get_dev_number $1 floppy`/disc floppy
elif [ "${MEDIA}" = "disk" ]; then
echo
ide/host${HOST}/bus${BUS}/target${TARGET}/lun0/disc
discs/disc`get_dev_number $1 disk`/disc disk
(add the type again at the end)
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next prev parent reply other threads:[~2004-11-10 23:25 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-10 22:02 udev and cdrom permissions Stefan Schweizer
2004-11-10 22:10 ` Marco d'Itri
2004-11-10 23:25 ` Stefan Schweizer [this message]
2004-11-11 18:52 ` Stefan Schweizer
2004-11-17 21:26 ` Stefan Schweizer
2004-12-02 22:26 ` Greg KH
2004-12-05 21:59 ` Stefan Schweizer
2004-12-06 23:03 ` Greg KH
2004-12-07 14:34 ` Kay Sievers
2004-12-07 17:51 ` Greg KH
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