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List:       busybox
Subject:    [BusyBox] Busybox [PATCH] new devfsd applet.
From:       Tito <farmatito () tiscali ! it>
Date:       2003-09-30 14:42:34
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Hi to all,
following the thread  started by Matteo Croce and using some fo his work
and the advices from the list  I worked  out  a devfsd applet for busybox.
The size in the base config now is: 18936 bytes for  miscutils/devfsd.o
Busybox devfsd known limitations are:

UNSUPPORTED COMMANDLINE SWITCHES:

	-d     Run  devfsd  in  debug  mode. Used for debugging the kernel-side
              protocol implemented by devfs. This  also  prints  the  protocol
              version numbers. In this mode the daemon runs in the foreground.

	 -t num Set the trace level to num. If the level is greater than 0  then
              output  is sent to stderr rather than syslog(3). If the level is
              greater than 1 then devfsd will run in trace mode. Higher levels
              yield more trace information.

	 -D mask
              Set the debug mask for devfs.

UNSUPPORTED DEVFSD.CONF KEYWORDS:
MODLOAD
			Maybe as suggested on the mailing list this could be substituted
			with EXECUTE /sbin/modprobe <something>, but I've not tested it.

MFUNCTION	(substitute with EXECUTE <command>)
CFUNCTION	(substitute with EXECUTE <command>)
				#DELETE		.*		CFUNCTION GLOBAL unlink /lib/dev-state/$devname
				 DELETE		.*		EXECUTE /bin/rm	-f		/lib/dev-state/$devname
				#REGISTER	^cdroms/cdrom0$	CFUNCTION GLOBAL mksymlink $devname cdrom
				#UNREGISTER	^cdroms/cdrom0$	CFUNCTION GLOBAL unlink cdrom
				REGISTER    ^cdroms/cdrom0$    EXECUTE /bin/ln -sf $devname cdrom
				UNREGISTER  ^cdroms/cdrom0$    EXECUTE /bin/rm -f cdrom

OTHER:
Logging reduced to a minimum: most of the messages not linked with an exit() call are \
ignored. Set CONFIG_DEVFSD_VERBOSE to increase logging to stderr (!)and syslog ( and \
binary size: ~+1.5 kb ). Set CONFIG_DEVFSD_DEBUG   to to have also function names \
printed ( binary size: ~+1.5 kb ).

WARNING:
This is still very alfa, the only testing I've done was to substitute it to the \
original devfsd on my MDK 9.1 using  a customized devfsd.conf file (attached) and \
running it for the last two days. Until now everything worked as expected, \
but.....................

The patch is against todays CVS (30-09-2003).

Thanks in advance and please apply if you like it.

Ciao,
Tito
 


["devfsd.conf.gz" (application/x-gzip)]
["bb_devfsd_patch.txt.gz" (application/x-gzip)]

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