[sane-devel] scanbd problem with dbus permission ?

[Michael Markusch]

Hi Wilhelm,

thanks for your answer.

I followed your notes but it still does not work.

- make distclean
- ./configure
- make
- set in /usr/local/sbin/scanbd/dll.confonly "genesys"
- sudo /usr/local/sbin/scanbd -d -f -c /usr/local/etc/scanbd/scanbd.conf

> /usr/local/sbin/scanbd: debug on: level: 7
> /usr/local/sbin/scanbd: dropping privs to uid saned
> /usr/local/sbin/scanbd: dropping privs to gid lp
> /usr/local/sbin/scanbd: drop privileges to gid: 7
> /usr/local/sbin/scanbd: Running as effective gid 7
> /usr/local/sbin/scanbd: drop privileges to uid: 112
> /usr/local/sbin/scanbd: Running as effective uid 112
> /usr/local/sbin/scanbd: dbus_init
> /usr/local/sbin/scanbd: dbus match
> type='signal',interface='org.freedesktop.Hal.Manager'
> /usr/local/sbin/scanbd: sane version 1.0
> /usr/local/sbin/scanbd: Scanning for local-only devices
> /usr/local/sbin/scanbd: start_sane_threads
> /usr/local/sbin/scanbd: start dbus thread
> /usr/local/sbin/scanbd: udev init
> /usr/local/sbin/scanbd: get udev monitor
> /usr/local/sbin/scanbd: timeout: 500 ms
> /usr/local/sbin/scanbd: udev fd is non-blocking, now setting to
> blocking mode
> /usr/local/sbin/scanbd: Iteration on dbus call
> /usr/local/sbin/scanbd: start udev thread
> /usr/local/sbin/scanbd: udev thread started
> /usr/local/sbin/scanbd: Iteration on dbus call
> /usr/local/sbin/scanbd: Iteration on dbus call
> /usr/local/sbin/scanbd: Iteration on dbus call
> /usr/local/sbin/scanbd: Iteration on dbus call
> ...

What else can I try?

Thanks,
Michael


Am 20.08.2013 07:50, schrieb Wilhelm:
> Hi Michael,
>
> Am 18.08.2013 14:33, schrieb Michael Markusch:
>> Hi,
>>
>> I tried to install scanbd and I guess that's very easy, but now I have a
>> permission problem. In the past I use my scanner with sane as scanserver
>> and everything worked.
>>
>> My system:
>> Debian Wheezy, Kernel 3.6.11 on Raspberry Pi
>>
>> Scanner:
>> Canon canoscan lide 35
>>
>>
>> Here my installation steps:
>>
>> - install libconfuse-dev libsane-dev libudev-dev libusb-dev
>> - I use scanbd from SVN
>> - ./configure --enable-scanbuttond (no problems)
>
> why did you enable scanbuttond-drivers. Your scanner should be fully
> supported by the sane-backends (and as you said, scanimage is working)
>
>> - make (no problems)
>> - make install (no problems)
>> - copy scanbd_dbus.conf to /etc/dbus-1/system.d/
>> - install xinetd
>> - generate /etc/xinetd.d/sane-port
>> - edit /etc/sane.d/dll.conf set only "net"
>> - edit /usr/local/etc/scanbd/dll.conf set "#net"
>
> be sure to include the backend for your scanner
>
>> - edit /etc/sane.d/net.conf set localhost and connect_timeout = 60
>> - copy backends /etc/sane.d/ to /usr/local/etc/scanbd/
>> - export SANE_CONFIG_DIR=/usr/local/etc/scanbd
>> - /usr/local/sbin/scanbd -d -f -c /usr/local/etc/scanbd/scanbd.conf
>> (with problems)
>>
>> Log:
>>
>>> /usr/local/sbin/scanbd: debug on: level: 7
>>> /usr/local/sbin/scanbd: dropping privs to uid saned
>>> /usr/local/sbin/scanbd: dropping privs to gid lp
>>> /usr/local/sbin/scanbd: drop privileges to gid: 7
>>> /usr/local/sbin/scanbd: Can't set the effective gid to 7
>>> /usr/local/sbin/scanbd: drop privileges to uid: 112
>>> /usr/local/sbin/scanbd: Can't set the effective uid to 112
>
> If you start scanbd as unprivileged user it isn't possible to changed
> the euid/egid. Start it as root and it will itself change the euid /
> egid to the ones in the config file.
>
>>> /usr/local/sbin/scanbd: dbus_init
>>> /usr/local/sbin/scanbd: dbus match
>>> type='signal',interface='org.freedesktop.Hal.Manager'
>>> /usr/local/sbin/scanbd: Loading
>>> /usr/local/lib/scanbd/scanbuttond/backends/meta.so
>>> /usr/local/sbin/scanbd: meta-backend: init
>>> /usr/local/sbin/scanbd: libusbi: initializing...
>>> /usr/local/sbin/scanbd: Loading
>>> /usr/local/lib/scanbd/scanbuttond/backends/hp3500.so
>>> /usr/local/sbin/scanbd: meta-backend: attaching backend: HP3500 USB
>>> /usr/local/sbin/scanbd: hp3500-backend: init
>>> /usr/local/sbin/scanbd: Loading
>>> /usr/local/lib/scanbd/scanbuttond/backends/snapscan.so
>>> /usr/local/sbin/scanbd: meta-backend: attaching backend: Snapscan USB
>>> /usr/local/sbin/scanbd: snapscan-backend: init
>>> /usr/local/sbin/scanbd: Loading
>>> /usr/local/lib/scanbd/scanbuttond/backends/niash.so
>>> /usr/local/sbin/scanbd: meta-backend: attaching backend: Niash USB
>>> /usr/local/sbin/scanbd: niash-backend: init
>>> /usr/local/sbin/scanbd: Loading
>>> /usr/local/lib/scanbd/scanbuttond/backends/epson_vphoto.so
>>> /usr/local/sbin/scanbd: meta-backend: attaching backend: Epson VX00
>>> Photo USB
>>> /usr/local/sbin/scanbd: epson-vphoto-backend: init
>>> /usr/local/sbin/scanbd: Scanning for local-only devices
>>> /usr/local/sbin/scanbd: Can't get the scbtn device list
>
> your scanner isn't recognized by the old scanbuttond-backends. As said
> above please use the sane-backends
>
>>> /usr/local/sbin/scanbd: device list null
>>> /usr/local/sbin/scanbd: start_scbtn_threads
>>> /usr/local/sbin/scanbd: start the threads (0)
>>> /usr/local/sbin/scanbd: start dbus thread
>>> /usr/local/sbin/scanbd: Not Primary Owner (-1)
>>> /usr/local/sbin/scanbd: Name Error (Connection ":1.48" is not allowed
>>> to own the service "de.kmux.scanbd.server" due to security policies in
>>> the configuration file)
>>
>> If I started scanbd as "sudo":
>>
>> Log:
>>
>>> ...
>>> /usr/local/sbin/scanbd: meta-backend: attaching backend: Epson VX00
>>> Photo USB
>>> /usr/local/sbin/scanbd: epson-vphoto-backend: init
>>> /usr/local/sbin/scanbd: Scanning for local-only devices
>>> /usr/local/sbin/scanbd: Can't get the scbtn device list
>>> /usr/local/sbin/scanbd: device list null
>>> /usr/local/sbin/scanbd: start_scbtn_threads
>>> /usr/local/sbin/scanbd: start the threads (0)
>>> /usr/local/sbin/scanbd: start dbus thread
>>> /usr/local/sbin/scanbd: timeout: 500 ms
>>> /usr/local/sbin/scanbd: Iteration on dbus call
>>> /usr/local/sbin/scanbd: Iteration on dbus call
>>> /usr/local/sbin/scanbd: Iteration on dbus call
>>> /usr/local/sbin/scanbd: Iteration on dbus call
>>> /usr/local/sbin/scanbd: Iteration on dbus call
>>> /usr/local/sbin/scanbd: Iteration on dbus call
>>
>> I tried also too:
>>
>> - SANE_CONFIG_DIR=/usr/local/etc/scanbd scanimage -L (with problems)
>> - copy 99-saned.rules to /lib/udev/rules.d
>> - udevadm trigger
>> - SANE_CONFIG_DIR=/usr/local/etc/scanbd scanimage -L (with problems)
>> - sudo SANE_CONFIG_DIR=/usr/local/etc/scanbd scanimage -L (no problems)
>>
>>
>> I'm not familiar with dbus and so on... Can someone help me please?
>
> Please do:
>
> make distclean
> ./configure
> make
>
> and install it as above.
> Then redo your tests.
>
>