+++ /dev/null
-/*
- * Copyright (C) 2008-2009 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 <stddef.h>
-#include <string.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <getopt.h>
-#include <errno.h>
-#include <dirent.h>
-#include <fcntl.h>
-#include <syslog.h>
-#include <fnmatch.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-
-#include "udev.h"
-
-static int verbose;
-static int dry_run;
-
-static void exec_list(struct udev_enumerate *udev_enumerate, const char *action)
-{
- struct udev *udev = udev_enumerate_get_udev(udev_enumerate);
- struct udev_list_entry *entry;
-
- udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(udev_enumerate)) {
- char filename[UTIL_PATH_SIZE];
- int fd;
-
- if (verbose)
- printf("%s\n", udev_list_entry_get_name(entry));
- if (dry_run)
- continue;
- util_strscpyl(filename, sizeof(filename), udev_list_entry_get_name(entry), "/uevent", NULL);
- fd = open(filename, O_WRONLY);
- if (fd < 0) {
- dbg(udev, "error on opening %s: %m\n", filename);
- continue;
- }
- if (write(fd, action, strlen(action)) < 0)
- info(udev, "error writing '%s' to '%s': %m\n", action, filename);
- close(fd);
- }
-}
-
-static const char *keyval(const char *str, const char **val, char *buf, size_t size)
-{
- char *pos;
-
- util_strscpy(buf, size,str);
- pos = strchr(buf, '=');
- if (pos != NULL) {
- pos[0] = 0;
- pos++;
- }
- *val = pos;
- return buf;
-}
-
-static int adm_trigger(struct udev *udev, int argc, char *argv[])
-{
- static const struct option options[] = {
- { "verbose", no_argument, NULL, 'v' },
- { "dry-run", no_argument, NULL, 'n' },
- { "type", required_argument, NULL, 't' },
- { "action", required_argument, NULL, 'c' },
- { "subsystem-match", required_argument, NULL, 's' },
- { "subsystem-nomatch", required_argument, NULL, 'S' },
- { "attr-match", required_argument, NULL, 'a' },
- { "attr-nomatch", required_argument, NULL, 'A' },
- { "property-match", required_argument, NULL, 'p' },
- { "tag-match", required_argument, NULL, 'g' },
- { "sysname-match", required_argument, NULL, 'y' },
- { "parent-match", required_argument, NULL, 'b' },
- { "help", no_argument, NULL, 'h' },
- {}
- };
- enum {
- TYPE_DEVICES,
- TYPE_SUBSYSTEMS,
- } device_type = TYPE_DEVICES;
- const char *action = "change";
- struct udev_enumerate *udev_enumerate;
- int rc = 0;
-
- dbg(udev, "version %s\n", VERSION);
- udev_enumerate = udev_enumerate_new(udev);
- if (udev_enumerate == NULL) {
- rc = 1;
- goto exit;
- }
-
- for (;;) {
- int option;
- const char *key;
- const char *val;
- char buf[UTIL_PATH_SIZE];
-
- option = getopt_long(argc, argv, "vng:o:t:hc:p:s:S:a:A:y:b:", options, NULL);
- if (option == -1)
- break;
-
- switch (option) {
- case 'v':
- verbose = 1;
- break;
- case 'n':
- dry_run = 1;
- break;
- case 't':
- if (strcmp(optarg, "devices") == 0) {
- device_type = TYPE_DEVICES;
- } else if (strcmp(optarg, "subsystems") == 0) {
- device_type = TYPE_SUBSYSTEMS;
- } else {
- err(udev, "unknown type --type=%s\n", optarg);
- rc = 2;
- goto exit;
- }
- break;
- case 'c':
- action = optarg;
- break;
- case 's':
- udev_enumerate_add_match_subsystem(udev_enumerate, optarg);
- break;
- case 'S':
- udev_enumerate_add_nomatch_subsystem(udev_enumerate, optarg);
- break;
- case 'a':
- key = keyval(optarg, &val, buf, sizeof(buf));
- udev_enumerate_add_match_sysattr(udev_enumerate, key, val);
- break;
- case 'A':
- key = keyval(optarg, &val, buf, sizeof(buf));
- udev_enumerate_add_nomatch_sysattr(udev_enumerate, key, val);
- break;
- case 'p':
- key = keyval(optarg, &val, buf, sizeof(buf));
- udev_enumerate_add_match_property(udev_enumerate, key, val);
- break;
- case 'g':
- udev_enumerate_add_match_tag(udev_enumerate, optarg);
- break;
- case 'y':
- udev_enumerate_add_match_sysname(udev_enumerate, optarg);
- break;
- case 'b': {
- char path[UTIL_PATH_SIZE];
- struct udev_device *dev;
-
- /* add sys dir if needed */
- if (strncmp(optarg, udev_get_sys_path(udev), strlen(udev_get_sys_path(udev))) != 0)
- util_strscpyl(path, sizeof(path), udev_get_sys_path(udev), optarg, NULL);
- else
- util_strscpy(path, sizeof(path), optarg);
- util_remove_trailing_chars(path, '/');
- dev = udev_device_new_from_syspath(udev, path);
- if (dev == NULL) {
- err(udev, "unable to open the device '%s'\n", optarg);
- rc = 2;
- goto exit;
- }
- udev_enumerate_add_match_parent(udev_enumerate, dev);
- /* drop reference immediately, enumerate pins the device as long as needed */
- udev_device_unref(dev);
- break;
- }
- case 'h':
- printf("Usage: udevadm trigger OPTIONS\n"
- " --verbose print the list of devices while running\n"
- " --dry-run do not actually trigger the events\n"
- " --type= type of events to trigger\n"
- " devices sys devices (default)\n"
- " subsystems sys subsystems and drivers\n"
- " --action=<action> event action value, default is \"change\"\n"
- " --subsystem-match=<subsystem> trigger devices from a matching subsystem\n"
- " --subsystem-nomatch=<subsystem> exclude devices from a matching subsystem\n"
- " --attr-match=<file[=<value>]> trigger devices with a matching attribute\n"
- " --attr-nomatch=<file[=<value>]> exclude devices with a matching attribute\n"
- " --property-match=<key>=<value> trigger devices with a matching property\n"
- " --tag-match=<key>=<value> trigger devices with a matching property\n"
- " --sysname-match=<name> trigger devices with a matching name\n"
- " --parent-match=<name> trigger devices with that parent device\n"
- " --help\n\n");
- goto exit;
- default:
- rc = 1;
- goto exit;
- }
- }
-
- switch (device_type) {
- case TYPE_SUBSYSTEMS:
- udev_enumerate_scan_subsystems(udev_enumerate);
- exec_list(udev_enumerate, action);
- goto exit;
- case TYPE_DEVICES:
- udev_enumerate_scan_devices(udev_enumerate);
- exec_list(udev_enumerate, action);
- goto exit;
- default:
- goto exit;
- }
-exit:
- udev_enumerate_unref(udev_enumerate);
- return rc;
-}
-
-const struct udevadm_cmd udevadm_trigger = {
- .name = "trigger",
- .cmd = adm_trigger,
- .help = "request events from the kernel",
-};
~ianmdlvl / elogind.git / blobdiff