openct broken by ubuntu udev setup

[Andreas Jellinghaus]

Binary package hint: openct

see bug #125052 for details how ubuntu udev setup broke openct.
this can be worked around by using the latest openct_usb.in file from
openct trunk or 0.6.12 release (out soon). this was fixed in openct svn
repository revision 984 and the fix can be downloaded from:
http://www.opensc-project.org/svn/openct/trunk/etc/openct_usb.in

this was tested on feisty, but I believe gutsy is affected as well and maybe also earlier
versions of ubuntu. please fix this issue in all versions affected (any please: soon!)

[Andreas Jellinghaus (tolonuga)]

this patch updates etc/openct_usb to the latest version from openct/trunk. this file was tested and works well on feisty,
and also should work well on gutsy (same openct package IIRC). please apply to both! (and edgy if that one has /dev/bus/usb bind-mounted to /proc/bus/usb too).

[Andreas Jellinghaus (tolonuga)]

please update openct to 0.6.14 for gutsy, so it will work.
0.6.14 contains all recent fixes for udev and hal setup.

note: if you run 2.6.22, make sure it is 2.6.22.6+ (fix for
drivers/usb/core/message.c included) before testing.
a kernel bug for this has been filed as well.

[Andreas Jellinghaus (tolonuga)]

I could finally test ubuntu gutsy and found out: it is broken,
hotplugging usb smart card reader does not work.

the problem is simple: /dev/bus/usb/* has device files in ubuntu gutsy,
but /proc/bus/usb is an empty directory. the kernel event gives us a file
name in /proc/bus/usb :(

the proper fix is to ask udev "which device file did you create for the parent event"
and then use that file name. this was implemented in openct 0.6.14 and works fine
and has been tested by a several people on several distribution.

so beside a changelog entry I replaced etc/openct_usb.in with the openct 0.6.14 file
and now it works fine. attached is a diff. could someone please compile/upload a new
openct package with this fix?

[Andreas Jellinghaus (tolonuga)]

this latest patch works on top of the current openct version in universe.
it is as small as it can get.
with it: plug in a usb smart card reader, works.
without it: plug in a usb smart card reader, does not work. you can work around with "sudo /etc/init.d/openct restart" but that
is very ugly, and not a good idea, if you want to login with smart cards (e.g. pam_p11 login module with opensc and openct).

the only file changed is the /lib/udev/openct_usb file used by the hotplug mechanism, only called for usb smart card readers,
so other packages cannot be affected by this fix.

the fix was necessary, because ubuntu dropped /proc/bus/usb which is historically mounted with usbfs.

diffstat:
 debian/changelog | 11 +++++++++++
 etc/openct_usb.in | 53 ++++++++++++++++++++++++++++++++++-------------------
 2 files changed, 45 insertions(+), 19 deletions(-)

the changed package builds, installs and upgrades fine, does not break packages depending on it (such as opensc).

[Daniel Holbach (dholbach)]

Needs motu-uvf ACK.

[Scott Kitterman (kitterman)]

If it does, ack, but it's just adding a patch. I'd say go for it dholbach as long as it's tested before upload.

[Andreas Jellinghaus (tolonuga)]

my self-build packages with this patch applied (and nothing else) work fine.
if you want to do more testing, I can help (without some usb smart card reader
or usb crypto token supported by openct there is not much you can test yourself).

[Scott Kitterman (kitterman)]

Subscribed UUS/Unsubbed motu-uvf as it's not an upstream version.

[Scott Kitterman (kitterman)]

Uploaded.

[Scott Kitterman (kitterman)]

openct (0.6.11-3ubuntu1) gutsy; urgency=low

  [ Andreas Jellinghaus ]
  * Fix openct_udev script for Ubuntu (LP: #125054)

  [ Scott Kitterman ]
  * Correct Ubuntu revision number
  * Clean up debian/changelog entry
  * Change maintainer to MOTU

 -- Scott Kitterman <email address hidden> Sun, 14 Oct 2007 00:53:28 -0400

[Andreas Jellinghaus (tolonuga)]

thanks a lot scott, I tested the new package and it works fine.

Regards, Andreas