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/*
* udev . c
*
* Userspace devfs
*
* Copyright ( C ) 2003 , 2004 Greg Kroah - Hartman < greg @ kroah . com >
*
* This program is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation version 2 of the License .
*
* This program is distributed in the hope that it will be useful , but
* WITHOUT ANY WARRANTY ; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE . See the GNU
* General Public License for more details .
*
* You should have received a copy of the GNU General Public License along
* with this program ; if not , write to the Free Software Foundation , Inc . ,
* 675 Mass Ave , Cambridge , MA 0213 9 , USA .
*
*/
# include <stdlib.h>
# include <string.h>
# include <stdio.h>
# include <errno.h>
# include <ctype.h>
# include <signal.h>
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# include "libsysfs/sysfs/libsysfs.h"
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# include "udev.h"
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# include "udev_lib.h"
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# include "udev_version.h"
# include "logging.h"
# include "namedev.h"
/* global variables */
char * * main_argv ;
char * * main_envp ;
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# ifdef LOG
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unsigned char logname [ LOGNAME_SIZE ] ;
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void log_message ( int level , const char * format , . . . )
{
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va_list args ;
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va_start ( args , format ) ;
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vprintf ( format , args ) ;
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va_end ( args ) ;
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if ( format [ strlen ( format ) - 1 ] ! = ' \n ' )
printf ( " \n " ) ;
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}
# endif
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int main ( int argc , char * argv [ ] , char * envp [ ] )
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{
char * devpath ;
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char temp [ NAME_SIZE ] ;
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char * subsystem = " " ;
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main_argv = argv ;
main_envp = envp ;
info ( " version %s " , UDEV_VERSION ) ;
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if ( argv [ 1 ] = = NULL ) {
info ( " udevinfo expects the DEVPATH of the sysfs device as a argument " ) ;
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goto exit ;
}
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/* initialize our configuration */
udev_init_config ( ) ;
/* remove sysfs_path if given */
if ( strncmp ( argv [ 1 ] , sysfs_path , strlen ( sysfs_path ) ) = = 0 )
devpath = argv [ 1 ] + strlen ( sysfs_path ) ;
else
if ( argv [ 1 ] [ 0 ] ! = ' / ' ) {
/* prepend '/' if missing */
strfieldcpy ( temp , " / " ) ;
strfieldcat ( temp , argv [ 1 ] ) ;
devpath = temp ;
} else {
devpath = argv [ 1 ] ;
}
info ( " looking at '%s' " , devpath ) ;
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/* we only care about class devices and block stuff */
if ( ! strstr ( devpath , " class " ) & &
! strstr ( devpath , " block " ) ) {
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info ( " not a block or class device " ) ;
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goto exit ;
}
/* initialize the naming deamon */
namedev_init ( ) ;
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if ( argv [ 2 ] ! = NULL )
subsystem = argv [ 2 ] ;
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/* simulate node creation with fake flag */
[PATCH] Fix naming ethernet devices in udevstart
On Tue, Sep 07, 2004 at 12:46:43PM +0200, Kay Sievers wrote:
> On Mon, 2004-09-06 at 20:18 -0700, Tom Rini wrote:
> > I noticed somewhat recently that my enet devices weren't being renamed
> > on boot anymore. I don't quite know when this got broken (or rather, if
> > it was supposed to be working. I swear it worked for me once..), but
> > the following seems to do it.
>
> I think it never worked in the udevstart case. It worked only with the
> hotplug-event-udev, I expect.
>
> > In udev_scan_class(), look for not just
> > %s/%s/dev (which everything with a dev node has), but %s/%s/dev* (both
> > of my enet devices, sis900 & 3c59x only have device) and if that
> > exists, pass this along to udev.
>
> Yeah, network devices don't have a devnode and therefore no "dev", but
> they are all in /sys/class/net/. We may just test if we are there
> instead of the "device" match.
How about something like this. It adds all the net devices without
looking at the attributes and keeps the remaining logic like it is.
It also removes certain levels of indirection and much simplifies the
udevstart process. We surely don't need to open and close the udevdb
for every node while iterating over the list. (We are about 5% faster on
my box)
It's not well tested, so it would be nice if someone can have a look
at it, before a broken udevstart renders any system unbootable.
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udev_add_device ( devpath , subsystem , FAKE ) ;
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exit :
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return 0 ;
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}