2 * Copyright (C) 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
3 * Copyright (C) 2004-2006 Kay Sievers <kay.sievers@vrfy.org>
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation version 2 of the License.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
33 #include "udev_rules.h"
35 static int import_uevent_var(struct udev *udev, const char *devpath)
38 static char value[4096]; /* must stay, used with putenv */
45 /* read uevent file */
46 strlcpy(path, udev_get_sys_path(udev), sizeof(path));
47 strlcat(path, devpath, sizeof(path));
48 strlcat(path, "/uevent", sizeof(path));
49 fd = open(path, O_RDONLY);
52 size = read(fd, value, sizeof(value));
58 /* import keys into environment */
60 while (key[0] != '\0') {
61 next = strchr(key, '\n');
65 info(udev, "import into environment: '%s'\n", key);
74 int udevadm_test(struct udev *udev, int argc, char *argv[])
77 const char *action = "add";
78 const char *subsystem = NULL;
79 const char *devpath = NULL;
80 struct udevice *udevice;
81 struct sysfs_device *dev;
82 struct udev_rules rules = {};
86 static const struct option options[] = {
87 { "action", 1, NULL, 'a' },
88 { "subsystem", 1, NULL, 's' },
89 { "force", 0, NULL, 'f' },
90 { "help", 0, NULL, 'h' },
94 info(udev, "version %s\n", VERSION);
96 /* export log priority to executed programs */
97 if (udev_get_log_priority(udev) > 0) {
100 sprintf(priority, "%i", udev_get_log_priority(udev));
101 setenv("UDEV_LOG", priority, 1);
107 option = getopt_long(argc, argv, "a:s:fh", options, NULL);
111 dbg(udev, "option '%c'\n", option);
123 printf("Usage: udevadm test OPTIONS <devpath>\n"
124 " --action=<string> set action string\n"
125 " --subsystem=<string> set subsystem string\n"
126 " --force don't skip node/link creation\n"
127 " --help print this help text\n\n");
133 devpath = argv[optind];
135 if (devpath == NULL) {
136 fprintf(stderr, "devpath parameter missing\n");
141 printf("This program is for debugging only, it does not run any program,\n"
142 "specified by a RUN key. It may show incorrect results, because\n"
143 "some values may be different, or not available at a simulation run.\n"
146 udev_rules_init(udev, &rules, 0);
148 /* remove /sys if given */
149 if (strncmp(devpath, udev_get_sys_path(udev), strlen(udev_get_sys_path(udev))) == 0)
150 devpath = &devpath[strlen(udev_get_sys_path(udev))];
152 dev = sysfs_device_get(udev, devpath);
154 fprintf(stderr, "unable to open device '%s'\n", devpath);
159 udevice = udev_device_init(udev);
160 if (udevice == NULL) {
161 fprintf(stderr, "error initializing device\n");
166 if (subsystem != NULL)
167 strlcpy(dev->subsystem, subsystem, sizeof(dev->subsystem));
169 /* override built-in sysfs device */
171 strlcpy(udevice->action, action, sizeof(udevice->action));
172 udevice->devt = udev_device_get_devt(udevice);
174 /* simulate node creation with test flag */
176 udevice->test_run = 1;
178 setenv("DEVPATH", udevice->dev->devpath, 1);
179 setenv("SUBSYSTEM", udevice->dev->subsystem, 1);
180 setenv("ACTION", udevice->action, 1);
181 import_uevent_var(udev, udevice->dev->devpath);
183 info(udev, "looking at device '%s' from subsystem '%s'\n", udevice->dev->devpath, udevice->dev->subsystem);
184 retval = udev_device_event(&rules, udevice);
186 if (udevice->event_timeout >= 0)
187 info(udev, "custom event timeout: %i\n", udevice->event_timeout);
189 if (retval == 0 && !udevice->ignore_device && udev_get_run(udev)) {
190 struct name_entry *name_loop;
192 list_for_each_entry(name_loop, &udevice->run_list, node) {
193 char program[PATH_SIZE];
195 strlcpy(program, name_loop->name, sizeof(program));
196 udev_rules_apply_format(udevice, program, sizeof(program));
197 info(udev, "run: '%s'\n", program);
200 udev_device_cleanup(udevice);
203 udev_rules_cleanup(&rules);