From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
To: SE-Linux <selinux@tycho.nsa.gov>
Subject: Re: policy patch for tunable "/dev/hdc is removable drive"
Date: Tue, 24 Aug 2004 01:22:44 +0100 [thread overview]
Message-ID: <20040824002244.GA25356@lkcl.net> (raw)
In-Reply-To: <20040823214228.GA13677@lkcl.net>
my apologies for the length of the patch which i had not correctly
observed: the /.?u?dev is there to deal with /.dev which on debian
linux with udev is the "real" /dev remounted (--bind?) to a different
point.
if you then run a make relabel WITHOUT the /[.u]dev, ALL devices in
/.dev get marked as oh, i dunno, default_t or something: consequently,
your next reboot will catastrophically fail as /sbin/init or something
fairly major tries to access the "real" i.e. non-udev /dev.
of course this problem would be avoided if udev was available in initrd's.
in amongst this lot are two lines that say /dev/hdc something here
we go:
> +/.?u?dev/hdc -b system_u:object_r:tunably_defined_disk_t
> +/.?u?dev/[h]d[^/^c]* -b system_u:object_r:fixed_disk_device_t
i added the ^c in order to exclude /dev/hdc, i must warn you i am CRAP
at regular expressions so please do observe sufficient caution.
anyway, as russell describes, this in combination with the tunable
for users to access non-xattr drives e.g. floppy and cd, you should
be able to run kaffeine, xine etc. and possibly even k3b / cdrecord.
but i decided to go for a separate policy file for k3b + cdrecord,
which i will macro-it-ise like mozilla is and release later.
l.
On Mon, Aug 23, 2004 at 10:42:28PM +0100, Luke Kenneth Casson Leighton wrote:
> after russell's excellent suggestion of making /dev/hdc a
> removable_device_t because i happened to have an IDE CD-RW,
> i decided to add this as a tunable because i sure don't want
> to keep on merging / patching stuff and i am sure that not
> everyone has an IDE CD-RW on their second primary ide interface.
>
> l.
>
> --
> --
> Truth, honesty and respect are rare commodities that all spring from
> the same well: Love. If you love yourself and everyone and everything
> around you, funnily and coincidentally enough, life gets a lot better.
> --
> <a href="http://lkcl.net"> lkcl.net </a> <br />
> <a href="mailto:lkcl@lkcl.net"> lkcl@lkcl.net </a> <br />
>
> diff -Naur
> --- default.1.14/file_contexts/types.fc 2004-08-02 08:28:37.000000000 +0100
> +++ current/file_contexts/types.fc 2004-08-23 10:35:18.000000000 +0100
> @@ -112,109 +117,111 @@
> #
> # /dev
> #
> -/u?dev(/.*)? system_u:object_r:device_t
> -/u?dev/pts(/.*)? <<none>>
> -/u?dev/cpu/.* -c system_u:object_r:cpu_device_t
> -/u?dev/microcode -c system_u:object_r:cpu_device_t
> -/u?dev/MAKEDEV -- system_u:object_r:sbin_t
> -/u?dev/null -c system_u:object_r:null_device_t
> -/u?dev/full -c system_u:object_r:null_device_t
> -/u?dev/zero -c system_u:object_r:zero_device_t
> -/u?dev/console -c system_u:object_r:console_device_t
> -/u?dev/(kmem|mem|port) -c system_u:object_r:memory_device_t
> -/u?dev/nvram -c system_u:object_r:memory_device_t
> -/u?dev/random -c system_u:object_r:random_device_t
> -/u?dev/urandom -c system_u:object_r:urandom_device_t
> -/u?dev/.*tty[^/]* -c system_u:object_r:tty_device_t
> -/u?dev/cu.* -c system_u:object_r:tty_device_t
> -/u?dev/vcs[^/]* -c system_u:object_r:tty_device_t
> -/u?dev/ip2[^/]* -c system_u:object_r:tty_device_t
> -/u?dev/tty -c system_u:object_r:devtty_t
> -/u?dev/[shmx]d[^/]* -b system_u:object_r:fixed_disk_device_t
> -/u?dev/sg[0-9]+ -c system_u:object_r:scsi_generic_device_t
> -/u?dev/rd.* -b system_u:object_r:fixed_disk_device_t
> -/u?dev/i2o/hd[^/]* -b system_u:object_r:fixed_disk_device_t
> -/u?dev/ubd[^/]* -b system_u:object_r:fixed_disk_device_t
> -/u?dev/cciss/[^/]* -b system_u:object_r:fixed_disk_device_t
> -/u?dev/ida/[^/]* -b system_u:object_r:fixed_disk_device_t
> -/u?dev/dasd[^/]* -b system_u:object_r:fixed_disk_device_t
> -/u?dev/flash[^/]* -b system_u:object_r:fixed_disk_device_t
> -/u?dev/nb[^/]+ -b system_u:object_r:fixed_disk_device_t
> -/u?dev/ataraid/.* -b system_u:object_r:fixed_disk_device_t
> -/u?dev/loop.* -b system_u:object_r:fixed_disk_device_t
> -/u?dev/net/.* -c system_u:object_r:tun_tap_device_t
> -/u?dev/ram.* -b system_u:object_r:fixed_disk_device_t
> -/u?dev/rawctl -c system_u:object_r:fixed_disk_device_t
> -/u?dev/raw/raw[0-9]+ -c system_u:object_r:fixed_disk_device_t
> -/u?dev/initrd -b system_u:object_r:fixed_disk_device_t
> -/u?dev/jsfd -b system_u:object_r:fixed_disk_device_t
> -/u?dev/s(cd|r)[^/]* -b system_u:object_r:removable_device_t
> -/u?dev/usb/rio500 -c system_u:object_r:removable_device_t
> -/u?dev/fd[^/]+ -b system_u:object_r:removable_device_t
> +/.?u?dev(/.*)? system_u:object_r:device_t
> +/.?u?dev/pts(/.*)? <<none>>
> +/.?u?dev/cpu/.* -c system_u:object_r:cpu_device_t
> +/.?u?dev/microcode -c system_u:object_r:cpu_device_t
> +/.?u?dev/MAKEDEV -- system_u:object_r:sbin_t
> +/.?u?dev/null -c system_u:object_r:null_device_t
> +/.?u?dev/full -c system_u:object_r:null_device_t
> +/.?u?dev/zero -c system_u:object_r:zero_device_t
> +/.?u?dev/console -c system_u:object_r:console_device_t
> +/.?u?dev/(kmem|mem|port) -c system_u:object_r:memory_device_t
> +/.?u?dev/nvram -c system_u:object_r:memory_device_t
> +/.?u?dev/random -c system_u:object_r:random_device_t
> +/.?u?dev/urandom -c system_u:object_r:urandom_device_t
> +/.?u?dev/.*tty[^/]* -c system_u:object_r:tty_device_t
> +/.?u?dev/cu.* -c system_u:object_r:tty_device_t
> +/.?u?dev/vcs[^/]* -c system_u:object_r:tty_device_t
> +/.?u?dev/ip2[^/]* -c system_u:object_r:tty_device_t
> +/.?u?dev/tty -c system_u:object_r:devtty_t
> +/.?u?dev/hdc -b system_u:object_r:tunably_defined_disk_t
> +/.?u?dev/[h]d[^/^c]* -b system_u:object_r:fixed_disk_device_t
> +/.?u?dev/[smx]d[^/]* -b system_u:object_r:fixed_disk_device_t
> +/.?u?dev/sg[0-9]+ -c system_u:object_r:scsi_generic_device_t
> +/.?u?dev/rd.* -b system_u:object_r:fixed_disk_device_t
> +/.?u?dev/i2o/hd[^/]* -b system_u:object_r:fixed_disk_device_t
> +/.?u?dev/ubd[^/]* -b system_u:object_r:fixed_disk_device_t
> +/.?u?dev/cciss/[^/]* -b system_u:object_r:fixed_disk_device_t
> +/.?u?dev/ida/[^/]* -b system_u:object_r:fixed_disk_device_t
> +/.?u?dev/dasd[^/]* -b system_u:object_r:fixed_disk_device_t
> +/.?u?dev/flash[^/]* -b system_u:object_r:fixed_disk_device_t
> +/.?u?dev/nb[^/]+ -b system_u:object_r:fixed_disk_device_t
> +/.?u?dev/ataraid/.* -b system_u:object_r:fixed_disk_device_t
> +/.?u?dev/loop.* -b system_u:object_r:fixed_disk_device_t
> +/.?u?dev/net/.* -c system_u:object_r:tun_tap_device_t
> +/.?u?dev/ram.* -b system_u:object_r:fixed_disk_device_t
> +/.?u?dev/rawctl -c system_u:object_r:fixed_disk_device_t
> +/.?u?dev/raw/raw[0-9]+ -c system_u:object_r:fixed_disk_device_t
> +/.?u?dev/initrd -b system_u:object_r:fixed_disk_device_t
> +/.?u?dev/jsfd -b system_u:object_r:fixed_disk_device_t
> +/.?u?dev/s(cd|r)[^/]* -b system_u:object_r:removable_device_t
> +/.?u?dev/usb/rio500 -c system_u:object_r:removable_device_t
> +/.?u?dev/fd[^/]+ -b system_u:object_r:removable_device_t
> # I think a parallel port disk is a removable device...
> -/u?dev/pd[a-d][^/]* -b system_u:object_r:removable_device_t
> -/u?dev/p[fg][0-3] -b system_u:object_r:removable_device_t
> -/u?dev/aztcd -b system_u:object_r:removable_device_t
> -/u?dev/bpcd -b system_u:object_r:removable_device_t
> -/u?dev/gscd -b system_u:object_r:removable_device_t
> -/u?dev/hitcd -b system_u:object_r:removable_device_t
> -/u?dev/pcd[0-3] -b system_u:object_r:removable_device_t
> -/u?dev/mcdx? -b system_u:object_r:removable_device_t
> -/u?dev/cdu.* -b system_u:object_r:removable_device_t
> -/u?dev/cm20.* -b system_u:object_r:removable_device_t
> -/u?dev/optcd -b system_u:object_r:removable_device_t
> -/u?dev/sbpcd.* -b system_u:object_r:removable_device_t
> -/u?dev/sjcd -b system_u:object_r:removable_device_t
> -/u?dev/sonycd -b system_u:object_r:removable_device_t
> +/.?u?dev/pd[a-d][^/]* -b system_u:object_r:removable_device_t
> +/.?u?dev/p[fg][0-3] -b system_u:object_r:removable_device_t
> +/.?u?dev/aztcd -b system_u:object_r:removable_device_t
> +/.?u?dev/bpcd -b system_u:object_r:removable_device_t
> +/.?u?dev/gscd -b system_u:object_r:removable_device_t
> +/.?u?dev/hitcd -b system_u:object_r:removable_device_t
> +/.?u?dev/pcd[0-3] -b system_u:object_r:removable_device_t
> +/.?u?dev/mcdx? -b system_u:object_r:removable_device_t
> +/.?u?dev/cdu.* -b system_u:object_r:removable_device_t
> +/.?u?dev/cm20.* -b system_u:object_r:removable_device_t
> +/.?u?dev/optcd -b system_u:object_r:removable_device_t
> +/.?u?dev/sbpcd.* -b system_u:object_r:removable_device_t
> +/.?u?dev/sjcd -b system_u:object_r:removable_device_t
> +/.?u?dev/sonycd -b system_u:object_r:removable_device_t
> # parallel port ATAPI generic device
> -/u?dev/pg[0-3] -c system_u:object_r:removable_device_t
> -/u?dev/rtc -c system_u:object_r:clock_device_t
> -/u?dev/psaux -c system_u:object_r:mouse_device_t
> -/u?dev/atibm -c system_u:object_r:mouse_device_t
> -/u?dev/logibm -c system_u:object_r:mouse_device_t
> -/u?dev/.*mouse.* -c system_u:object_r:mouse_device_t
> -/u?dev/input/.*mouse.* -c system_u:object_r:mouse_device_t
> -/u?dev/input/event.* -c system_u:object_r:event_device_t
> -/u?dev/input/mice -c system_u:object_r:mouse_device_t
> -/u?dev/input/js.* -c system_u:object_r:mouse_device_t
> -/u?dev/js.* -c system_u:object_r:mouse_device_t
> -/u?dev/jsflash -c system_u:object_r:fixed_disk_device_t
> -/u?dev/ptmx -c system_u:object_r:ptmx_t
> -/u?dev/sequencer -c system_u:object_r:misc_device_t
> -/u?dev/fb[0-9]* -c system_u:object_r:framebuf_device_t
> -/u?dev/apm_bios -c system_u:object_r:apm_bios_t
> -/u?dev/cpu/mtrr -c system_u:object_r:mtrr_device_t
> -/u?dev/(radio|video|vbi|vtx).* -c system_u:object_r:v4l_device_t
> -/u?dev/winradio. -c system_u:object_r:v4l_device_t
> -/u?dev/vttuner -c system_u:object_r:v4l_device_t
> -/u?dev/tlk[0-3] -c system_u:object_r:v4l_device_t
> -/u?dev/mixer.* -c system_u:object_r:sound_device_t
> -/u?dev/dsp.* -c system_u:object_r:sound_device_t
> -/u?dev/audio.* -c system_u:object_r:sound_device_t
> -/u?dev/r?midi.* -c system_u:object_r:sound_device_t
> -/u?dev/smpte.* -c system_u:object_r:sound_device_t
> -/u?dev/sndstat -c system_u:object_r:sound_device_t
> -/u?dev/beep -c system_u:object_r:sound_device_t
> -/u?dev/patmgr[01] -c system_u:object_r:sound_device_t
> -/u?dev/mpu401.* -c system_u:object_r:sound_device_t
> -/u?dev/srnd[0-7] -c system_u:object_r:sound_device_t
> -/u?dev/aload.* -c system_u:object_r:sound_device_t
> -/u?dev/amidi.* -c system_u:object_r:sound_device_t
> -/u?dev/amixer.* -c system_u:object_r:sound_device_t
> -/u?dev/snd/.* -c system_u:object_r:sound_device_t
> -/u?dev/n?[hs]t[0-9].* -c system_u:object_r:tape_device_t
> -/u?dev/(n?raw)?qft[0-3] -c system_u:object_r:tape_device_t
> -/u?dev/n?z?qft[0-3] -c system_u:object_r:tape_device_t
> -/u?dev/n?tpqic[12].* -c system_u:object_r:tape_device_t
> -/u?dev/ht[0-1] -b system_u:object_r:tape_device_t
> -/u?dev/n?osst[0-3].* -c system_u:object_r:tape_device_t
> -/u?dev/n?pt[0-9]+ -c system_u:object_r:tape_device_t
> -/u?dev/usb/scanner.* -c system_u:object_r:scanner_device_t
> -/u?dev/usb/dc2xx.* -c system_u:object_r:scanner_device_t
> -/u?dev/usb/mdc800.* -c system_u:object_r:scanner_device_t
> -/u?dev/usb/tty.* -c system_u:object_r:usbtty_device_t
> -/u?dev/mmetfgrab -c system_u:object_r:scanner_device_t
> -/u?dev/nvidia.* -c system_u:object_r:xserver_misc_device_t
> +/.?u?dev/pg[0-3] -c system_u:object_r:removable_device_t
> +/.?u?dev/rtc -c system_u:object_r:clock_device_t
> +/.?u?dev/psaux -c system_u:object_r:mouse_device_t
> +/.?u?dev/atibm -c system_u:object_r:mouse_device_t
> +/.?u?dev/logibm -c system_u:object_r:mouse_device_t
> +/.?u?dev/.*mouse.* -c system_u:object_r:mouse_device_t
> +/.?u?dev/input/.*mouse.* -c system_u:object_r:mouse_device_t
> +/.?u?dev/input/event.* -c system_u:object_r:event_device_t
> +/.?u?dev/input/mice -c system_u:object_r:mouse_device_t
> +/.?u?dev/input/js.* -c system_u:object_r:mouse_device_t
> +/.?u?dev/js.* -c system_u:object_r:mouse_device_t
> +/.?u?dev/jsflash -c system_u:object_r:fixed_disk_device_t
> +/.?u?dev/ptmx -c system_u:object_r:ptmx_t
> +/.?u?dev/sequencer -c system_u:object_r:misc_device_t
> +/.?u?dev/fb[0-9]* -c system_u:object_r:framebuf_device_t
> +/.?u?dev/apm_bios -c system_u:object_r:apm_bios_t
> +/.?u?dev/cpu/mtrr -c system_u:object_r:mtrr_device_t
> +/.?u?dev/(radio|video|vbi|vtx).* -c system_u:object_r:v4l_device_t
> +/.?u?dev/winradio. -c system_u:object_r:v4l_device_t
> +/.?u?dev/vttuner -c system_u:object_r:v4l_device_t
> +/.?u?dev/tlk[0-3] -c system_u:object_r:v4l_device_t
> +/.?u?dev/mixer.* -c system_u:object_r:sound_device_t
> +/.?u?dev/dsp.* -c system_u:object_r:sound_device_t
> +/.?u?dev/audio.* -c system_u:object_r:sound_device_t
> +/.?u?dev/r?midi.* -c system_u:object_r:sound_device_t
> +/.?u?dev/smpte.* -c system_u:object_r:sound_device_t
> +/.?u?dev/sndstat -c system_u:object_r:sound_device_t
> +/.?u?dev/beep -c system_u:object_r:sound_device_t
> +/.?u?dev/patmgr[01] -c system_u:object_r:sound_device_t
> +/.?u?dev/mpu401.* -c system_u:object_r:sound_device_t
> +/.?u?dev/srnd[0-7] -c system_u:object_r:sound_device_t
> +/.?u?dev/aload.* -c system_u:object_r:sound_device_t
> +/.?u?dev/amidi.* -c system_u:object_r:sound_device_t
> +/.?u?dev/amixer.* -c system_u:object_r:sound_device_t
> +/.?u?dev/snd/.* -c system_u:object_r:sound_device_t
> +/.?u?dev/n?[hs]t[0-9].* -c system_u:object_r:tape_device_t
> +/.?u?dev/(n?raw)?qft[0-3] -c system_u:object_r:tape_device_t
> +/.?u?dev/n?z?qft[0-3] -c system_u:object_r:tape_device_t
> +/.?u?dev/n?tpqic[12].* -c system_u:object_r:tape_device_t
> +/.?u?dev/ht[0-1] -b system_u:object_r:tape_device_t
> +/.?u?dev/n?osst[0-3].* -c system_u:object_r:tape_device_t
> +/.?u?dev/n?pt[0-9]+ -c system_u:object_r:tape_device_t
> +/.?u?dev/usb/scanner.* -c system_u:object_r:scanner_device_t
> +/.?u?dev/usb/dc2xx.* -c system_u:object_r:scanner_device_t
> +/.?u?dev/usb/mdc800.* -c system_u:object_r:scanner_device_t
> +/.?u?dev/usb/tty.* -c system_u:object_r:usbtty_device_t
> +/.?u?dev/mmetfgrab -c system_u:object_r:scanner_device_t
> +/.?u?dev/nvidia.* -c system_u:object_r:xserver_misc_device_t
>
> /proc(/.*)? <<none>>
> /sys(/.*)? <<none>>
> diff -Naur
> --- default.1.14/tunables/tunable.te 2004-08-02 08:28:37.000000000 +0100
> +++ current/tunables/tunable.te 2004-08-23 10:34:30.000000000 +0100
> @@ -101,7 +101,11 @@
> dnl define(`user_net_control')
>
> # Allow user to rw usb devices
> -dnl define(`user_rw_usb')
> +dnl define(`user_rw_usb')
>
> # Allow user to connect to database server
> define(`user_db_connect')
> +
> +# Define whether hdc is an IDE CD(RW) DVD(RW)
> +define(`hdc_is_cd_dvd')
> +
> diff -Naur
> --- default.1.14/types/device.te 2004-08-02 08:28:37.000000000 +0100
> +++ current/types/device.te 2004-08-23 10:31:13.000000000 +0100
> @@ -73,6 +73,14 @@
> #
> type removable_device_t, device_type;
>
> +# /dev/hdc could be an IDE CD/RW or DVD/RW.
> +
> +ifdef(`hdc_is_cd_dvd', `
> +typealias removable_device_t alias tunably_defined_disk_t;
> +',`
> +typealias fixed_disk_device_t alias tunably_defined_disk_t;
> +')
> +
> #
> # clock_device_t is the type of
> # /dev/rtc.
--
--
Truth, honesty and respect are rare commodities that all spring from
the same well: Love. If you love yourself and everyone and everything
around you, funnily and coincidentally enough, life gets a lot better.
--
<a href="http://lkcl.net"> lkcl.net </a> <br />
<a href="mailto:lkcl@lkcl.net"> lkcl@lkcl.net </a> <br />
--
This message was distributed to subscribers of the selinux mailing list.
If you no longer wish to subscribe, send mail to majordomo@tycho.nsa.gov with
the words "unsubscribe selinux" without quotes as the message.
next prev parent reply other threads:[~2004-08-24 0:11 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-23 21:42 policy patch for tunable "/dev/hdc is removable drive" Luke Kenneth Casson Leighton
2004-08-24 0:22 ` Luke Kenneth Casson Leighton [this message]
2004-08-24 9:15 ` Thomas Bleher
2004-08-24 12:22 ` Valdis.Kletnieks
2004-08-25 11:38 ` Thomas Bleher
2004-08-24 14:22 ` Luke Kenneth Casson Leighton
2004-08-25 11:40 ` Russell Coker
2004-08-25 13:53 ` Luke Kenneth Casson Leighton
2004-08-25 13:57 ` Russell Coker
2004-08-25 16:20 ` Luke Kenneth Casson Leighton
2004-08-25 23:51 ` Russell Coker
2004-08-26 11:00 ` Luke Kenneth Casson Leighton
2004-08-25 17:07 ` Colin Walters
2004-08-28 13:54 ` Russell Coker
2004-08-29 13:17 ` Colin Walters
2004-09-01 6:19 ` Russell Coker
2004-08-24 11:06 ` Stephen Smalley
2004-08-24 14:58 ` Luke Kenneth Casson Leighton
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20040824002244.GA25356@lkcl.net \
--to=lkcl@lkcl.net \
--cc=selinux@tycho.nsa.gov \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.