/* SPDX-License-Identifier: GPL-2.0+ */ /* * Copyright © 2003-2004 Greg Kroah-Hartman * */ #include #include #include #include #include #include #include #include #include "string-util.h" #include "udev-util.h" #include "udev.h" #include "udevadm-util.h" static void help(void) { printf("%s test [OPTIONS] DEVPATH\n\n" "Test an event run.\n\n" " -h --help Show this help\n" " -V --version Show package version\n" " -a --action=ACTION Set action string\n" " -N --resolve-names=early|late|never When to resolve names\n" , program_invocation_short_name); } static int adm_test(struct udev *udev, int argc, char *argv[]) { int resolve_names = 1; char filename[UTIL_PATH_SIZE]; const char *action = "add"; const char *syspath = NULL; struct udev_list_entry *entry; _cleanup_(udev_rules_unrefp) struct udev_rules *rules = NULL; _cleanup_(udev_device_unrefp) struct udev_device *dev = NULL; _cleanup_(udev_event_unrefp) struct udev_event *event = NULL; sigset_t mask, sigmask_orig; int rc = 0, c; static const struct option options[] = { { "action", required_argument, NULL, 'a' }, { "resolve-names", required_argument, NULL, 'N' }, { "version", no_argument, NULL, 'V' }, { "help", no_argument, NULL, 'h' }, {} }; log_debug("version %s", PACKAGE_VERSION); while ((c = getopt_long(argc, argv, "a:N:Vh", options, NULL)) >= 0) switch (c) { case 'a': action = optarg; break; case 'N': if (streq (optarg, "early")) { resolve_names = 1; } else if (streq (optarg, "late")) { resolve_names = 0; } else if (streq (optarg, "never")) { resolve_names = -1; } else { fprintf(stderr, "resolve-names must be early, late or never\n"); log_error("resolve-names must be early, late or never"); exit(EXIT_FAILURE); } break; case 'V': print_version(); exit(EXIT_SUCCESS); case 'h': help(); exit(EXIT_SUCCESS); case '?': exit(EXIT_FAILURE); default: assert_not_reached("Unknown option"); } syspath = argv[optind]; if (syspath == NULL) { fprintf(stderr, "syspath parameter missing\n"); rc = 2; goto out; } 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"); sigprocmask(SIG_SETMASK, NULL, &sigmask_orig); udev_builtin_init(udev); rules = udev_rules_new(udev, resolve_names); if (rules == NULL) { fprintf(stderr, "error reading rules\n"); rc = 3; goto out; } /* add /sys if needed */ if (!startswith(syspath, "/sys")) strscpyl(filename, sizeof(filename), "/sys", syspath, NULL); else strscpy(filename, sizeof(filename), syspath); delete_trailing_chars(filename, "/"); dev = udev_device_new_from_synthetic_event(udev, filename, action); if (dev == NULL) { fprintf(stderr, "unable to open device '%s'\n", filename); rc = 4; goto out; } /* don't read info from the db */ udev_device_set_info_loaded(dev); event = udev_event_new(dev); sigfillset(&mask); sigprocmask(SIG_SETMASK, &mask, &sigmask_orig); udev_event_execute_rules(event, 60 * USEC_PER_SEC, 20 * USEC_PER_SEC, NULL, rules); udev_list_entry_foreach(entry, udev_device_get_properties_list_entry(dev)) printf("%s=%s\n", udev_list_entry_get_name(entry), udev_list_entry_get_value(entry)); udev_list_entry_foreach(entry, udev_list_get_entry(&event->run_list)) { char program[UTIL_PATH_SIZE]; udev_event_apply_format(event, udev_list_entry_get_name(entry), program, sizeof(program), false); printf("run: '%s'\n", program); } out: udev_builtin_exit(udev); return rc; } const struct udevadm_cmd udevadm_test = { .name = "test", .cmd = adm_test, .help = "Test an event run", .debug = true, };