[Bug 453605] Re: Make default mount umasks configurable

[Alkis Georgopoulos]

AFAIK, the showexec mount parameter that you're already using handles
the executable files just fine, and it won't be affected by the dmask
change.

Output from a patched udisks2 with dmask dropped:

alkisg@pc ~ $ grep vfat /proc/self/mountinfo
35 22 8:33 / /media/alkisg/usbstick rw,nosuid,nodev,relatime - vfat /dev/sdc1 
rw,uid=1000,gid=1000,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,showexec,utf8,flush,errors=remount-ro
alkisg@pc ~ $ cd /media/alkisg/usbstick/
alkisg@pc /media/alkisg/usbstick $ touch test.exe test.com test.bat test.txt
alkisg@pc /media/alkisg/usbstick $ ls -lha test.*
-rwxr-xr-x 1 alkisg alkisg 0 Jan  20 19:21 test.bat
-rwxr-xr-x 1 alkisg alkisg 0 Jan  20 19:21 test.com
-rwxr-xr-x 1 alkisg alkisg 0 Jan  20 19:21 test.exe
-rw-r--r-- 1 alkisg alkisg 0 Jan  20 19:21 test.txt

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Title:
  Make default mount umasks configurable

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[Bug 453605] Re: Make default mount umasks configurable

[Martin Pitt]

udisks 1 is ancient and unmaintained, I won't fix it there.

For udisks 2 this seems to make sense at first sight. I'll look into
this more closely; we need to retain a sensible behaviour for executable
files.

** Changed in: udisks (Ubuntu)
   Status: Confirmed => Won't Fix

** Changed in: udisks2 (Ubuntu)
 Assignee: (unassigned) => Martin Pitt (pitti)

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Title:
  Make default mount umasks configurable

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[Bug 453605] Re: Make default mount umasks configurable

[Alkis Georgopoulos]

P.S. completely removing dmask from the mount options and letting 
/media/username "cover" the permission issues,
couples well with UDISKS_FILESYSTEM_SHARED,
so that people that want USB drives to be shared across users,
can just specify UDISKS_FILESYSTEM_SHARED="1" in udev for those drives.

Then /media/mountpoint will be world-readable for vfat/ntfs, as expected
(as opposed to /media/username/mountpoint which is protected with the default 
UDISKS_FILESYSTEM_SHARED="0"). 

** No longer affects: nautilus (Ubuntu)

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[Bug 453605] Re: Make default mount umasks configurable

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: udisks2 (Ubuntu)
   Status: New => Confirmed

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[Bug 453605] Re: Make default mount umasks configurable

[Alkis Georgopoulos]

Quotting pitti from comment #2:
> We won't change the behaviour in udisks, there needs to be some default after 
> all.

Please completely remove dmask from the vfat/ntfs mount options, like fmask 
already is (absent).
Patch available at LP #482501.

I assume that dmask=0077 was added at some point in order to protect the 
contents of the mountpoint?
Nowadays, all user-mounted media is protected by the attributes of the parent 
directory, /media/username.
guest@pc:~$ ls /media/alkisg
ls: cannot open directory /media/alkisg: Permission denied

Inside /media/username/mountpoint, directories and files should be 
world-readable to behave better when copied elsewhere (LP #592748), e.g. in 
~/Documents, which is supposed to be world-readable by default.
For example, ~/.local is drwx-- but ~/.local/share is drwxr-xr-x,
similarly, /media/username should be drwx-- and 
/media/username/mountpoint/folders should be drwxr-xr-x.


For people needing a quick workaround, and since none exists yet, here's a 
really bad one that nevertheless does work for me:
# For the newer udisks2:
sudo sed 's/dmask=[0-9]\{4\}/dmask=0022/' -i /usr/lib/udisks2/udisksd
# For the older udisks:
sudo sed 's/dmask=[0-9]\{4\}/dmask=0022/' -i /usr/lib/udisks/udisks-daemon
# And reboot.

If udisks/udisks2 don't get fixed in some reasonable time, I'll upload
patches packages for the LTS Ubuntu releases in the Greek Schools PPA.
Unfortunately that'll be a pain, especially for udisks updates.

About configurability in nautilus, I don't think it will be needed if
dmask gets removed. And in any case configurability belongs in udisks,
not in packages that use udisks, because then every package that uses
udisks should provide such an option.

Thanks!

** Also affects: udisks (Ubuntu)
   Importance: Undecided
   Status: New

** Also affects: udisks2 (Ubuntu)
   Importance: Undecided
   Status: New

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Title:
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[Bug 453605] Re: Make default mount umasks configurable

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: udisks (Ubuntu)
   Status: New => Confirmed

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[Bug 453605] Re: Make default mount umasks configurable

[Vetinari]

and a few months later,   nothing...

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[Bug 453605] Re: Make default mount umasks configurable

[Jan]

Really nothing changed for another year? Thats poor.

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[Bug 453605] Re: Make default mount umasks configurable

[Harry Sufehmi]

Amazing that this old bug manages to exist through 2011.

Anyway - I've googled around, and the only fix seems to be the one described on 
this post :
https://bugs.launchpad.net/ubuntu/+source/devicekit-disks/+bug/482501/comments/13

However, when I tried to install the source for devicekit-disks, I got
error message : "Unable to find a source package for devicekit-disks"

I looked on the repository server, and the only source I could find is 
devicekit-disks_007.orig.tar.gz
(example: 
http://kambing.ui.ac.id/ubuntu/pool/main/d/devicekit-disks/devicekit-disks_007.orig.tar.gz)

So I downloaded it - then I found out that the content is different than the 
explanation in the post above.
(https://bugs.launchpad.net/ubuntu/+source/devicekit-disks/+bug/482501/comments/13)

Here I'm stuck with 2 years old bug, with a workaround which doesn't
work anymore.

Any hints would be much appreciated.

Thanks !

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[Bug 453605] Re: Make default mount umasks configurable

[Ivan Razumov]

Any chance of this to be fixed in the non-geek way? It's 10.10 already,
and this bug is still here!

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[Bug 453605] Re: Make default mount umasks configurable

[Bug Watch Updater]

** Changed in: gvfs
   Importance: Unknown => Wishlist

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[Bug 453605] Re: Make default mount umasks configurable

[Bug Watch Updater]

** Changed in: gvfs
   Status: Unknown => New

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[Bug 453605] Re: Make default mount umasks configurable

[Dana Goyette]

Also, I tried to change "Nautilus" (linked to upstream bug tracker) to "gvfs", 
and got:
Internal Server Error
NotImplementedError

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[Bug 453605] Re: Make default mount umasks configurable

[Dana Goyette]

I'm marking this regression-release, because as commented on in the
duplicate, we went from Jaunty (HAL) offering NTFS drives as 777 by
default (I believe), with gconf options to change permissions, to Karmic
(devkit-disks / udisks) offering no way to change permissions from 700
-- and thus no way to share an NTFS USB drive with Samba.

** Tags added: regression-release

** Bug watch added: GNOME Bug Tracker #586708
   https://bugzilla.gnome.org/show_bug.cgi?id=586708

** Also affects: nautilus via
   https://bugzilla.gnome.org/show_bug.cgi?id=586708
   Importance: Unknown
   Status: Unknown

** Project changed: nautilus => gvfs

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Re: [Bug 453605] Re: Make default mount umasks configurable

[Adrian Roman]

I've tried the solution suggested above but when I stick the NTFS USB drive
in, it says it can't mount it and point to this bit of documentation:

Unprivileged block device mounts work only if all the below requirements are
met:

   1. ntfs-3g is compiled with integrated FUSE support
   2. the ntfs-3g binary is at least version 1.2506
   3. the ntfs-3g binary is set to setuid-root
   4. the user has access right to the volume
   5. the user has access right to the mount point

http://www.tuxera.com/community/ntfs-3g-faq/#unprivileged


But the default ntfs-3g version shipped with Lucid is not compiled with
integrated FUSE support:

u...@host:~$ ntfs-3g --version
ntfs-3g 2010.3.6 external FUSE 28
u...@host:~$

So maybe that works only for FAT drives? Anybody have a workaround for NTFS
drives in that case? :)


On Fri, May 7, 2010 at 1:15 PM, X-Ander  wrote:

> I have added the following lines to my /etc/fstab:
>
> /dev/sdb1 /media/usbd1 auto
> noauto,rw,user,shortname=mixed,dmask=02,fmask=0113,utf8=1,flush 0 2
> /dev/sdc1 /media/usbd2 auto
> noauto,rw,user,shortname=mixed,dmask=02,fmask=0113,utf8=1,flush 0 2
>
> Now two USB flash drives are mounted as I want. I don't need more
> because I have only two USB connectors free at my netbook.
>
> The idea was suggested by http://hal.freedesktop.org/docs/DeviceKit-
> disks/Device.html#Device.FilesystemMount
>
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> Make default mount umasks configurable
> https://bugs.launchpad.net/bugs/453605
> You received this bug notification because you are a direct subscriber
> of a duplicate bug.
>

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[Bug 453605] Re: Make default mount umasks configurable

[X-Ander]

I have added the following lines to my /etc/fstab:

/dev/sdb1 /media/usbd1 auto 
noauto,rw,user,shortname=mixed,dmask=02,fmask=0113,utf8=1,flush 0 2
/dev/sdc1 /media/usbd2 auto 
noauto,rw,user,shortname=mixed,dmask=02,fmask=0113,utf8=1,flush 0 2

Now two USB flash drives are mounted as I want. I don't need more
because I have only two USB connectors free at my netbook.

The idea was suggested by http://hal.freedesktop.org/docs/DeviceKit-
disks/Device.html#Device.FilesystemMount

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[Bug 453605] Re: Make default mount umasks configurable

[Ryan Tucker]

A configuration option would be excellent.

Thanks for looking into this!  :-)

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[Bug 453605] Re: Make default mount umasks configurable

[Martin Pitt]

BTW, in lucid, VFAT drives are mounted with umask 077 again, as in
Jaunty.

** Description changed:

- Binary package hint: devicekit-disks
- 
- Greetings!
- 
- After upgrading from 9.04 to 9.10, mounting removable USB media (e.g. a
- thumbdrive) from Nautilus defaults the umask/fmask such that all of the
- files are 0755 (world readable/executable).  While the dmask is set such
- that directories themselves are 0700, this does trip out software that
- is paranoid about security (e.g. ssh-add, for a private key stored on a
- thumbdrive).
- 
- Ideally, the umask should set the files to 0600 or 0700 by default.
- Even better, there should be an easy way to configure this (perhaps
- through the existing gconf system, which has
- /system/storage/default_options/vfat/mount_options ?).
- 
- $ lsb_release -rd
- Description:  Ubuntu karmic (development branch)
- Release:  9.10
- $ apt-cache policy devicekit-disks
- devicekit-disks:
-   Installed: 007-2ubuntu2
-   Candidate: 007-2ubuntu2
-   Version table:
-  *** 007-2ubuntu2 0
- 500 http://us.archive.ubuntu.com karmic/main Packages
- 100 /var/lib/dpkg/status
- 
- ProblemType: Bug
- Architecture: i386
- CustomUdevRuleFiles: 85-brltty.rules 025_libticables.rules 
025_libchipcard.rules
- Date: Fri Oct 16 19:51:34 2009
- DistroRelease: Ubuntu 9.10
- MachineType: VIA Technologies, Inc. FX43
- NonfreeKernelModules: nvidia
- Package: devicekit-disks 007-2ubuntu2
- ProcCmdLine: root=UUID=db0ef1e1-3015-4cd9-b92a-012fdf82bbbf ro 
ROOTFLAGS=syncio quiet splash  crashkernel=384M-2G:6...@16m,2G-:1...@16m
- ProcEnviron:
-  PATH=(custom, user)
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
- ProcVersionSignature: Ubuntu 2.6.31-14.47-generic
- SourcePackage: devicekit-disks
- Uname: Linux 2.6.31-14-generic i686
- dmi.bios.date: 12/30/2003
- dmi.bios.vendor: Phoenix Technologies, LTD
- dmi.bios.version: 6.00 PG
- dmi.board.name: FX43
- dmi.board.vendor: SHUTTLE INC
- dmi.chassis.type: 3
- dmi.modalias: 
dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd12/30/2003:svnVIATechnologies,Inc.:pnFX43:pvr:rvnSHUTTLEINC:rnFX43:rvr:cvn:ct3:cvr:
- dmi.product.name: FX43
- dmi.sys.vendor: VIA Technologies, Inc.
+ There should be an easy way to configure the default umask for
+ VFAT/NTFS/similar file systems (perhaps through the existing gconf
+ system, which has /system/storage/default_options/vfat/mount_options ?).

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