Bug#524665: Order of rules file processing broken?
Hi, Am Dienstag, den 21.04.2009, 02:25 +0200 schrieb Marco d'Itri: > On Apr 20, Joachim Breitner wrote: > > What is the relation > > between /sys/bus/usb/devices/2-2/usb_device/usbdev2.2/ > > and /sys/bus/usb/devices/2-2? > They represent different levels of the USB protocol. > Fix your rules to only match the real device. > Look at the libgphoto2 and libsane packages for examples. thanks for the clarification. But I’m wondering: Is it correct that for both devices, the same file in /dev is created resp. reused? $ udevadm test /sys/bus/usb/devices/2-2/usb_device/usbdev2.2/ 2>&1 | fgrep NAME udev_rules_apply_to_event: NAME 'bus/usb/002/002' /lib/udev/rules.d/50-udev.rules:39 $ udevadm test /sys/bus/usb/devices/2-2 2>&1 | fgrep NAME udev_rules_apply_to_event: NAME 'bus/usb/002/002' /lib/udev/rules.d/50-udev.rules:35 I’d expect that only one level of the USB protocol should get this NAME. Thanks, Joachim -- Joachim "nomeata" Breitner Debian Developer nome...@debian.org | ICQ# 74513189 | GPG-Keyid: 4743206C JID: nome...@joachim-breitner.de | http://people.debian.org/~nomeata signature.asc Description: Dies ist ein digital signierter Nachrichtenteil
Bug#524665: Order of rules file processing broken?
On Apr 20, Joachim Breitner wrote: > What is the relation > between /sys/bus/usb/devices/2-2/usb_device/usbdev2.2/ > and /sys/bus/usb/devices/2-2? They represent different levels of the USB protocol. Fix your rules to only match the real device. Look at the libgphoto2 and libsane packages for examples. -- ciao, Marco signature.asc Description: Digital signature
Bug#524665: Order of rules file processing broken?
Hi, Am Montag, den 20.04.2009, 12:19 +0200 schrieb Marco d'Itri: > On Apr 20, Micha Lenk wrote: > > > In opposite to this Joachim experienced something different: The rules > > in /lib/udev/rules.d/91-permissions.rules get applied after the rules > > in /etc/udev/rules.d/z60_libchipcard-tools.rules. So the rules from > > z60_libchipcard-tools.rules get overwritten by those from > > 91-permessions.rules even though "91-..." comes before "z60_..." in > > lexical order. > Please reproduce this using udevadm test. Here is the output, with does not show what’s happening $ udevadm test /sys/bus/usb/devices/2-2 run_command: calling: test udevadm_test: version 141 parse_file: reading '/etc/udev/rules.d/025_libgphoto2.rules' as rules file parse_file: reading '/lib/udev/rules.d/50-udev.rules' as rules file parse_file: reading '/lib/udev/rules.d/60-persistent-input.rules' as rules file parse_file: reading '/lib/udev/rules.d/60-persistent-serial.rules' as rules file parse_file: reading '/lib/udev/rules.d/60-persistent-storage-tape.rules' as rules file parse_file: reading '/lib/udev/rules.d/60-persistent-storage.rules' as rules file parse_file: reading '/lib/udev/rules.d/60-persistent-v4l.rules' as rules file parse_file: reading '/dev/.udev/rules.d/61-dev-root-link.rules' as rules file parse_file: reading '/etc/udev/rules.d/65_dmsetup.rules' as rules file parse_file: reading '/etc/udev/rules.d/70-persistent-cd.rules' as rules file parse_file: reading '/etc/udev/rules.d/70-persistent-net.rules' as rules file parse_file: reading '/lib/udev/rules.d/75-cd-aliases-generator.rules' as rules file parse_file: reading '/lib/udev/rules.d/75-persistent-net-generator.rules' as rules file parse_file: reading '/lib/udev/rules.d/80-drivers.rules' as rules file parse_file: reading '/etc/udev/rules.d/85-pcmcia.rules' as rules file parse_file: reading '/lib/udev/rules.d/90-hal.rules' as rules file parse_file: reading '/lib/udev/rules.d/91-permissions.rules' as rules file util_lookup_user: specified user 'tss' unknown util_lookup_group: specified group 'tss' unknown util_lookup_group: specified group 'kvm' unknown util_lookup_group: specified group 'rdma' unknown parse_file: reading '/lib/udev/rules.d/95-late.rules' as rules file parse_file: reading '/etc/udev/rules.d/libmtp8.rules' as rules file parse_file: reading '/etc/udev/rules.d/plextor.rules' as rules file parse_file: reading '/etc/udev/rules.d/z60_alsa-utils.rules' as rules file parse_file: reading '/etc/udev/rules.d/z60_hdparm.rules' as rules file parse_file: reading '/etc/udev/rules.d/z60_hplip.rules' as rules file parse_file: reading '/etc/udev/rules.d/z60_ifplugd.rules' as rules file parse_file: reading '/etc/udev/rules.d/z60_libchipcard-tools.rules' as rules file parse_file: reading '/etc/udev/rules.d/z60_libpisock9.rules' as rules file parse_file: reading '/etc/udev/rules.d/z60_libsane-extras.rules' as rules file parse_file: reading '/etc/udev/rules.d/z60_libsane.rules' as rules file parse_file: reading '/etc/udev/rules.d/z60_virtualbox-ose.rules' as rules file parse_file: reading '/etc/udev/rules.d/z60_xserver-xorg-input-wacom.rules' as rules file udev_rules_new: rules use 149688 bytes tokens (12474 * 12 bytes), 16512 bytes buffer udev_rules_new: temporary index used 36360 bytes (1818 * 20 bytes) udev_device_new_from_syspath: device 0x1efb430 has devpath '/devices/pci:00/:00:1a.0/usb2/2-2' udev_device_new_from_syspath: device 0x1efadb0 has devpath '/devices/pci:00/:00:1a.0/usb2/2-2' udev_device_read_db: device 0x1efadb0 filled with db symlink data '/dev/bus/usb/002/002' udev_device_new_from_syspath: device 0x1ef4a90 has devpath '/devices/pci:00/:00:1a.0/usb2' udev_device_new_from_syspath: device 0x1ef4d40 has devpath '/devices/pci:00/:00:1a.0' udev_device_new_from_syspath: device 0x1ef4ff0 has devpath '/devices/pci:00' udev_rules_apply_to_event: PROGRAM 'check-ptp-camera 06/01/01' /etc/udev/rules.d/025_libgphoto2.rules:939 util_run_program: 'check-ptp-camera 06/01/01' util_run_program: '/lib/udev/check-ptp-camera' returned with status 1 udev_rules_apply_to_event: LINK 'char/189:129' /lib/udev/rules.d/50-udev.rules:2 udev_rules_apply_to_event: NAME 'bus/usb/002/002' /lib/udev/rules.d/50-udev.rules:35 udev_rules_apply_to_event: RUN 'socket:@/org/freedesktop/hal/udev_event' /lib/udev/rules.d/90-hal.rules:2 udev_rules_apply_to_event: MODE 0664 /lib/udev/rules.d/91-permissions.rules:40 udev_rules_apply_to_event: GROUP 117 /etc/udev/rules.d/z60_libchipcard-tools.rules:8 udev_rules_apply_to_event: RUN '/usr/lib/chipcard/trigger_chipcardreader_scan.sh' /etc/udev/rules.d/z60_libchipcard-tools.rules:8 udev_device_update_db: create db link (bus/usb/002/002 char/189:129) udev_node_add: creating device node '/dev/bus/usb/002/002', devnum=189:129, mode=0664, uid=0, gid=117 udev_node_mknod: preserve file '/dev/bus/usb/002/002', because it has correct dev_t update_link: found 2 devices with name '/dev/char/189:129' udev_device_n
Bug#524665: Order of rules file processing broken?
On Apr 20, Micha Lenk wrote: > In opposite to this Joachim experienced something different: The rules > in /lib/udev/rules.d/91-permissions.rules get applied after the rules > in /etc/udev/rules.d/z60_libchipcard-tools.rules. So the rules from > z60_libchipcard-tools.rules get overwritten by those from > 91-permessions.rules even though "91-..." comes before "z60_..." in > lexical order. Please reproduce this using udevadm test. -- ciao, Marco signature.asc Description: Digital signature
Bug#524665: Order of rules file processing broken?
Package: udev
Version: 0.140-2
Hi udev maintainers,
when investigating the reasons for bug #524665 I discovered a
discrepancy between the udev man page and what apparently happens on
Joachim's system. The udev man page says in section "Rules files":
"The udev rules are read from the files located in the
default rules directory /lib/udev/rules.d/, the custom rules
directory /etc/udev/rules.d/ and the temporary rules directory
/dev/.udev/rules.d/. All rule files are sorted and processed in
lexical order, regardless in which of these directories they live."
In opposite to this Joachim experienced something different: The rules
in /lib/udev/rules.d/91-permissions.rules get applied after the rules
in /etc/udev/rules.d/z60_libchipcard-tools.rules. So the rules from
z60_libchipcard-tools.rules get overwritten by those from
91-permessions.rules even though "91-..." comes before "z60_..." in
lexical order.
Is this a bug in udev or did Joachim observe some weird special cases
(i.e. caused by a race condition)?
I definitely need your help. What do you suggest in order to fix the
bug?
Regards
Micha
- Forwarded message from Joachim Breitner -
Subject: Bug#524665: udev group setting does not work
From: Joachim Breitner
To: Debian Bug Tracking System
Date: Sat, 18 Apr 2009 23:13:23 +0200
Package: libchipcard-tools
Version: 4.2.7-2
Severity: important
File: /etc/udev/rules.d/z60_libchipcard-tools.rules
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Hi Micha,
for a while (probably since some udev upgrade), the file
/dev/bus/usb/003/006 (numbers vary, of course) do not have the proper
chipcard group setting any more.
I have attached a udev log with priority=info that shows what happens
when pluggin in my card reader. The settings from
/etc/udev/rules.d/z60_libchipcard-tools.rules do get applied, but are
later overridden by a line in /lib/udev/rules.d/91-permissions.rules:
SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", \
MODE="0664"
Which, as it seems, also resets the group.
I assume that you need to change your udev rule number, or move it to
/lib or something. I guess you should consult the udev maintainers for
that.
Greetings,
Joachim
- -- Package-specific info:
Available chipcard readers (output of "chipcard-tool list"):
- -- System Information:
Debian Release: squeeze/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.28-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages libchipcard-tools depends on:
ii adduser 3.110 add and remove users and groups
ii libc62.9-7 GNU C Library: Shared libraries
ii libchipcard- 4.2.7-2 configuration files for libchipcar
ii libchipcardc 4.2.7-2 library for accessing smartcards
ii libdbus-1-3 1.2.12-1simple interprocess messaging syst
ii libgcc1 1:4.3.3-8 GCC support library
ii libgwenhywfa 3.8.0-1 OS abstraction layer
ii libhal1 0.5.12~git20090406.46dc48-1 Hardware Abstraction Layer - share
ii libpcsclite1 1.5.2-2 Middleware to access a smart card
ii libstdc++6 4.3.3-8 The GNU Standard C++ Library v3
ii procps 1:3.2.7-11 /proc file system utilities
ii zlib1g 1:1.2.3.3.dfsg-13 compression library - runtime
Versions of packages libchipcard-tools recommends:
ii hal 0.5.12~git20090406.46dc48-1 Hardware Abstraction Layer
Versions of packages libchipcard-tools suggests:
ii libccid 1.3.10-1 PC/SC driver for USB CCID smart ca
pn libtowitoko2 (no description available)
- -- no debconf information
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Version: GnuPG v1.4.9 (GNU/Linux)
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//MAnjxUXm9wDnoj1yE5TUlluZ3imTY3
=K5/l
-END PGP SIGNATURE-
- End forwarded message -
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