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-rw-r--r--src/udev/udevadm-test.c162
1 files changed, 162 insertions, 0 deletions
diff --git a/src/udev/udevadm-test.c b/src/udev/udevadm-test.c
new file mode 100644
index 0000000..a029622
--- /dev/null
+++ b/src/udev/udevadm-test.c
@@ -0,0 +1,162 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright © 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
+ */
+
+#include <errno.h>
+#include <getopt.h>
+#include <signal.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/signalfd.h>
+#include <unistd.h>
+
+#include "sd-device.h"
+
+#include "device-private.h"
+#include "device-util.h"
+#include "libudev-util.h"
+#include "path-util.h"
+#include "string-util.h"
+#include "strxcpyx.h"
+#include "udev-builtin.h"
+#include "udev-event.h"
+#include "udevadm.h"
+
+static const char *arg_action = "add";
+static ResolveNameTiming arg_resolve_name_timing = RESOLVE_NAME_EARLY;
+static char arg_syspath[UTIL_PATH_SIZE] = {};
+
+static int 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|help Set action string\n"
+ " -N --resolve-names=early|late|never When to resolve names\n"
+ , program_invocation_short_name);
+
+ return 0;
+}
+
+static int parse_argv(int argc, char *argv[]) {
+ 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' },
+ {}
+ };
+
+ int c;
+
+ while ((c = getopt_long(argc, argv, "a:N:Vh", options, NULL)) >= 0)
+ switch (c) {
+ case 'a': {
+ DeviceAction a;
+
+ if (streq(optarg, "help")) {
+ dump_device_action_table();
+ return 0;
+ }
+
+ a = device_action_from_string(optarg);
+ if (a < 0)
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "Invalid action '%s'", optarg);
+
+ arg_action = optarg;
+ break;
+ }
+ case 'N':
+ arg_resolve_name_timing = resolve_name_timing_from_string(optarg);
+ if (arg_resolve_name_timing < 0)
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "--resolve-names= must be early, late or never");
+ break;
+ case 'V':
+ return print_version();
+ case 'h':
+ return help();
+ case '?':
+ return -EINVAL;
+ default:
+ assert_not_reached("Unknown option");
+ }
+
+ if (!argv[optind])
+ return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+ "syspath parameter missing.");
+
+ /* add /sys if needed */
+ if (!path_startswith(argv[optind], "/sys"))
+ strscpyl(arg_syspath, sizeof(arg_syspath), "/sys", argv[optind], NULL);
+ else
+ strscpy(arg_syspath, sizeof(arg_syspath), argv[optind]);
+
+ return 1;
+}
+
+int test_main(int argc, char *argv[], void *userdata) {
+ _cleanup_(udev_rules_freep) UdevRules *rules = NULL;
+ _cleanup_(udev_event_freep) UdevEvent *event = NULL;
+ _cleanup_(sd_device_unrefp) sd_device *dev = NULL;
+ const char *cmd, *key, *value;
+ sigset_t mask, sigmask_orig;
+ void *val;
+ int r;
+
+ log_set_max_level(LOG_DEBUG);
+
+ r = parse_argv(argc, argv);
+ if (r <= 0)
+ return r;
+
+ 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");
+
+ assert_se(sigprocmask(SIG_SETMASK, NULL, &sigmask_orig) >= 0);
+
+ udev_builtin_init();
+
+ r = udev_rules_load(&rules, arg_resolve_name_timing);
+ if (r < 0) {
+ log_error_errno(r, "Failed to read udev rules: %m");
+ goto out;
+ }
+
+ r = device_new_from_synthetic_event(&dev, arg_syspath, arg_action);
+ if (r < 0) {
+ log_error_errno(r, "Failed to open device '%s': %m", arg_syspath);
+ goto out;
+ }
+
+ /* don't read info from the db */
+ device_seal(dev);
+
+ event = udev_event_new(dev, 0, NULL);
+
+ assert_se(sigfillset(&mask) >= 0);
+ assert_se(sigprocmask(SIG_SETMASK, &mask, &sigmask_orig) >= 0);
+
+ udev_event_execute_rules(event, 60 * USEC_PER_SEC, SIGKILL, NULL, rules);
+
+ FOREACH_DEVICE_PROPERTY(dev, key, value)
+ printf("%s=%s\n", key, value);
+
+ ORDERED_HASHMAP_FOREACH_KEY(val, cmd, event->run_list) {
+ char program[UTIL_PATH_SIZE];
+
+ (void) udev_event_apply_format(event, cmd, program, sizeof(program), false);
+ printf("run: '%s'\n", program);
+ }
+
+ r = 0;
+out:
+ udev_builtin_exit();
+ return r;
+}