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here is a patch for inserting the callout output into NAME=.
ID= supports the usual wildcard to compare with the output.
I've moved all wildcard matching to a function cause this was the third occurrence.
Also attached is the last whitespace cleanup and debug text corrections.
The callout patch depends on the whitespace patch.
CALLOUT, BUS="usb", PROGRAM="/bin/echo -n return", ID="ret*", NAME="webcam-%c-"
results in:
Nov 21 17:33:51 pim udev[20399]: get_major_minor: found major = 81, minor = 0
Nov 21 17:33:51 pim udev[20399]: exec_callout: callout to '/bin/echo -n return'
Nov 21 17:33:51 pim udev[20399]: exec_callout: callout returned 'return'
Nov 21 17:33:51 pim udev[20399]: get_attr: substitute callout output 'return'
Nov 21 17:33:51 pim udev[20399]: udev_add_device: name = webcam-return-
Nov 21 17:33:51 pim udev[20399]: create_node: mknod(/udev/webcam-return-, 020660, 81, 0)
On Wed, Nov 19, Greg KH wrote:
> > I did 'make KLIBC=true' in the current bk tree.
>
> try 'make -f Makefile.klibc' in the current tree. For some reason I
> couldn't figure out how to have Makefile work for both KLIBC=true and
> KLIBC=false. But I didn't try too hard :)
I dont understand that.
please do rm -f Makefile.klibc; apply this patch and tell me what fails.
works for me.
here is argument support for CALLOUT exec:
CALLOUT, PROGRAM="/bin/echo -n xxx", BUS="usb", ID="xxx", NAME="webcam%n"
results in:
Nov 20 02:35:20 pim udev[30422]: get_major_minor: found major = 81, minor = 0
Nov 20 02:35:20 pim udev[30422]: exec_callout: callout to /bin/echo -n xxx
Nov 20 02:35:20 pim udev[30422]: exec_callout: callout returned 'xxx'
Nov 20 02:35:20 pim udev[30422]: get_attr: kernel number appended: 0
The feature is really nice, but the maximum argument count is hard coded to 8.
I want to bring the CALLOUT field ordering in line with the other
methods, cause the current parsing relies on the ordering it's good
to have it like the others. The BUS= is now the first expected field.
Also made the last two remaining field names to uppercase and the man page
callout example is updated.
here is mainly a whitespace cleanup for namedev.c. I changed the
dbg_parse() output a bit for better readability:
current:
Nov 19 19:00:59 pim udev[25582]: do_number: NUMBER path='/sys/devices/pci0000:00/0000:00:1d.1/usb2/2-1/2-1.1'
Nov 19 19:00:59 pim udev[25582]: do_number: NUMBER temp='/2-1.1' id='00:07.1'
Nov 19 19:00:59 pim udev[25582]: do_number: NUMBER temp='/2-1' id='00:07.1'
Nov 19 19:00:59 pim udev[25582]: do_number: NUMBER path='/sys/devices/pci0000:00/0000:00:1d.1/usb2/2-1/2-1.1'
Nov 19 19:00:59 pim udev[25582]: do_number: NUMBER temp='/2-1.1' id='00:0b.0'
Nov 19 19:00:59 pim udev[25582]: do_number: NUMBER temp='/2-1' id='00:0b.0'
Nov 19 19:00:59 pim udev[25582]: do_number: NUMBER path='/sys/devices/pci0000:00/0000:00:1d.1/usb2/2-1/2-1.1'
Nov 19 19:00:59 pim udev[25582]: do_number: NUMBER temp='/2-1.1' id='2-1.1'
Nov 19 19:00:59 pim udev[25582]: do_number: device id '2-1.1' becomes 'webcam%n' - owner='', group ='', mode=0
becomes:
Nov 19 19:23:40 pim udev[26091]: do_number: search '00:07.1' in '/2-1.1', path='/sys/devices/pci0000:00/0000:00:1d.1/usb2/2-1/2-1.1'
Nov 19 19:23:40 pim udev[26091]: do_number: search '00:07.1' in '/2-1', path='/sys/devices/pci0000:00/0000:00:1d.1/usb2/2-1'
Nov 19 19:23:40 pim udev[26091]: do_number: search '00:0b.0' in '/2-1.1', path='/sys/devices/pci0000:00/0000:00:1d.1/usb2/2-1/2-1.1'
Nov 19 19:23:40 pim udev[26091]: do_number: search '00:0b.0' in '/2-1', path='/sys/devices/pci0000:00/0000:00:1d.1/usb2/2-1'
Nov 19 19:23:40 pim udev[26091]: do_number: search '2-1.1' in '/2-1.1', path='/sys/devices/pci0000:00/0000:00:1d.1/usb2/2-1/2-1.1'
Nov 19 19:23:40 pim udev[26091]: do_number: found id '2-1.1', 'video0' becomes 'webcam%n' - owner='', group ='', mode=0
Permissions given in udev.permissions are not applied if no METHOD from
udev.config is found. I've added do_kernelname() to scan for known
permissions if we only use the default method.
Simple support for wildcards is also added:
#name:user:group:mode
hdb*:2702:2702:0660
results in:
drwxr-xr-x 2 root root 240 Nov 19 03:45 .
drwxr-xr-x 23 root root 528 Nov 17 03:36 ..
brw-r--r-- 1 root root 3, 0 Nov 19 03:45 hda
brw-r--r-- 1 root root 3, 1 Nov 19 03:45 hda1
brw-r--r-- 1 root root 3, 2 Nov 19 03:45 hda2
brw-r--r-- 1 root root 3, 4 Nov 19 03:45 hda4
brw-r----- 1 kay kay 3, 64 Nov 19 03:45 hdb
brw-r----- 1 kay kay 3, 65 Nov 19 03:45 hdb1
brw-r--r-- 1 root root 22, 0 Nov 19 03:45 hdc
crw-r--r-- 1 root root 81, 0 Nov 19 03:34 webcam0
I've attached a patch against 005 for both the block and tty scripts. I
didn't bother running udev backgrounded, since as you say, the new code
runs a lot faster.
After getting a number of different crashes for udev reading broken
udev.config files, I decided to try to make the parser a little
more robust.
The behaviour is changed to stop reading the configuration file
and logging the broken entry instead of silently ignoring it (is
that good? It's easy to just print and continue).
All strcpy()'s to a fixed length string are now implicitly limited
to the bounds of the target string.
I kept the -ENODEV return code for now, not sure if there should be
different ones.
On Tuesday 18 November 2003 02:14, Greg KH wrote:
> On Mon, Nov 17, 2003 at 06:33:32PM +0100, Arnd Bergmann wrote:
> > That would at least be part of the solution I'm looking for. How about
> > extra format characters for bus_id and for the result of a callout
> > program?
>
> Sure, I can see the use for that. Want to send a patch? :)
> Take a look at the current bk tree (which has moved to
> bk://linuxusb.bkbits.net/udev/ ) I've made finding that device a lot
> easier now, and it works for all rule types.
Great, just what I was missing. I didn't see the any link to the bk
repository. Here's the patch for the bus_id. I'll need to think about
the handling of callout results a bit more.
