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/*
* Copyright (C) 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
* Copyright (C) 2004-2008 Kay Sievers <kay.sievers@vrfy.org>
*
* 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, either version 2 of the License, or
* (at your option) any later version.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stddef.h>
#include <unistd.h>
#include <errno.h>
#include <ctype.h>
#include <fcntl.h>
#include <signal.h>
#include <syslog.h>
#include <getopt.h>
#include "udev.h"
int udevadm_test(struct udev *udev, int argc, char *argv[])
{
char filename[UTIL_PATH_SIZE];
int force = 0;
const char *action = "add";
const char *syspath = NULL;
struct udev_event *event;
struct udev_device *dev;
struct udev_rules *rules = NULL;
int err;
int rc = 0;
static const struct option options[] = {
{ "action", required_argument, NULL, 'a' },
{ "force", no_argument, NULL, 'f' },
{ "help", no_argument, NULL, 'h' },
{}
};
info(udev, "version %s\n", VERSION);
while (1) {
int option;
option = getopt_long(argc, argv, "a:s:fh", options, NULL);
if (option == -1)
break;
dbg(udev, "option '%c'\n", option);
switch (option) {
case 'a':
action = optarg;
break;
case 'f':
force = 1;
break;
case 'h':
printf("Usage: udevadm test OPTIONS <syspath>\n"
" --action=<string> set action string\n"
" --force don't skip node/link creation\n"
" --help print this help text\n\n");
exit(0);
default:
exit(1);
}
}
syspath = argv[optind];
if (syspath == NULL) {
fprintf(stderr, "syspath parameter missing\n");
rc = 1;
goto exit;
}
printf("This program is for debugging only, it does not run any program,\n"
"specified by a RUN key. It may show incorrect results, because\n"
"some values may be different, or not available at a simulation run.\n"
"\n");
rules = udev_rules_new(udev, 1);
if (rules == NULL) {
fprintf(stderr, "error reading rules\n");
rc = 1;
goto exit;
}
/* add /sys if needed */
if (strncmp(syspath, udev_get_sys_path(udev), strlen(udev_get_sys_path(udev))) != 0) {
util_strlcpy(filename, udev_get_sys_path(udev), sizeof(filename));
util_strlcat(filename, syspath, sizeof(filename));
syspath = filename;
}
dev = udev_device_new_from_syspath(udev, syspath);
if (dev == NULL) {
fprintf(stderr, "unable to open device '%s'\n", syspath);
rc = 2;
goto exit;
}
/* skip reading of db, but read kernel parameters */
udev_device_set_info_loaded(dev);
udev_device_read_uevent_file(dev);
udev_device_set_action(dev, action);
event = udev_event_new(dev);
/* simulate node creation with test flag */
if (!force)
event->test = 1;
err = udev_event_execute_rules(event, rules);
if (udev_device_get_event_timeout(dev) >= 0)
info(udev, "custom event timeout: %i\n", udev_device_get_event_timeout(dev));
if (err == 0 && !event->ignore_device && udev_get_run(udev)) {
struct udev_list_entry *entry;
udev_list_entry_foreach(entry, udev_list_get_entry(&event->run_list)) {
char program[UTIL_PATH_SIZE];
util_strlcpy(program, udev_list_entry_get_name(entry), sizeof(program));
udev_event_apply_format(event, program, sizeof(program));
info(udev, "run: '%s'\n", program);
}
}
udev_event_unref(event);
udev_device_unref(dev);
exit:
udev_rules_unref(rules);
return rc;
}
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