mirror of
https://github.com/systemd/systemd-stable.git
synced 2024-10-30 23:21:08 +03:00
9b28a52a0a
Here we change the DEVPATH for netdev's in the environment of the dev.d/ scripts to the name the device is renamed to. The original name doesn't exist in the kernel after rename.
93 lines
2.0 KiB
C
93 lines
2.0 KiB
C
/*
|
|
* dev_d.c - dev.d/ multiplexer
|
|
*
|
|
* Copyright (C) 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 essentially emulates the following shell script logic in C:
|
|
* DIR="/etc/dev.d"
|
|
* export DEVNODE="whatever_dev_name_udev_just_gave"
|
|
* for I in "${DIR}/$DEVNODE/"*.dev "${DIR}/$1/"*.dev "${DIR}/default/"*.dev ; do
|
|
* if [ -f $I ]; then $I $1 ; fi
|
|
* done
|
|
* exit 1;
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
#include <unistd.h>
|
|
#include "udev.h"
|
|
#include "udev_lib.h"
|
|
#include "logging.h"
|
|
|
|
#define DEVD_DIR "/etc/dev.d/"
|
|
#define DEVD_SUFFIX ".dev"
|
|
|
|
static int run_program(char *name)
|
|
{
|
|
pid_t pid;
|
|
|
|
dbg("running %s", name);
|
|
|
|
pid = fork();
|
|
switch (pid) {
|
|
case 0:
|
|
/* child */
|
|
execv(name, main_argv);
|
|
dbg("exec of child failed");
|
|
exit(1);
|
|
case -1:
|
|
dbg("fork of child failed");
|
|
break;
|
|
return -1;
|
|
default:
|
|
wait(NULL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* runs files in these directories in order:
|
|
* <node name given by udev>/
|
|
* subsystem/
|
|
* default/
|
|
*/
|
|
void dev_d_send(struct udevice *dev, char *subsystem, char *devpath)
|
|
{
|
|
char dirname[256];
|
|
char devname[NAME_SIZE];
|
|
|
|
if (udev_dev_d == 0)
|
|
return;
|
|
|
|
if (dev->type == 'b' || dev->type == 'c') {
|
|
strfieldcpy(devname, udev_root);
|
|
strfieldcat(devname, dev->name);
|
|
} else if (dev->type == 'n') {
|
|
strfieldcpy(devname, dev->name);
|
|
setenv("DEVPATH", devpath, 1);
|
|
}
|
|
setenv("DEVNAME", devname, 1);
|
|
dbg("DEVNAME='%s'", devname);
|
|
|
|
strcpy(dirname, DEVD_DIR);
|
|
strfieldcat(dirname, dev->name);
|
|
call_foreach_file(run_program, dirname, DEVD_SUFFIX);
|
|
|
|
strcpy(dirname, DEVD_DIR);
|
|
strfieldcat(dirname, subsystem);
|
|
call_foreach_file(run_program, dirname, DEVD_SUFFIX);
|
|
|
|
strcpy(dirname, DEVD_DIR "default");
|
|
call_foreach_file(run_program, dirname, DEVD_SUFFIX);
|
|
}
|