162 lines
5.3 KiB
C
162 lines
5.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright © 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
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*/
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#include <errno.h>
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#include <getopt.h>
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#include <signal.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/signalfd.h>
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#include <unistd.h>
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#include "sd-device.h"
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#include "device-private.h"
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#include "device-util.h"
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#include "path-util.h"
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#include "string-util.h"
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#include "strxcpyx.h"
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#include "udev-builtin.h"
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#include "udev-event.h"
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#include "udevadm.h"
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static const char *arg_action = "add";
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static ResolveNameTiming arg_resolve_name_timing = RESOLVE_NAME_EARLY;
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static char arg_syspath[UDEV_PATH_SIZE] = {};
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static int help(void) {
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printf("%s test [OPTIONS] DEVPATH\n\n"
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"Test an event run.\n\n"
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" -h --help Show this help\n"
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" -V --version Show package version\n"
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" -a --action=ACTION|help Set action string\n"
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" -N --resolve-names=early|late|never When to resolve names\n"
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, program_invocation_short_name);
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return 0;
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}
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static int parse_argv(int argc, char *argv[]) {
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static const struct option options[] = {
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{ "action", required_argument, NULL, 'a' },
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{ "resolve-names", required_argument, NULL, 'N' },
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{ "version", no_argument, NULL, 'V' },
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{ "help", no_argument, NULL, 'h' },
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{}
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};
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int c;
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while ((c = getopt_long(argc, argv, "a:N:Vh", options, NULL)) >= 0)
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switch (c) {
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case 'a': {
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DeviceAction a;
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if (streq(optarg, "help")) {
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dump_device_action_table();
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return 0;
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}
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a = device_action_from_string(optarg);
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if (a < 0)
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return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
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"Invalid action '%s'", optarg);
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arg_action = optarg;
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break;
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}
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case 'N':
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arg_resolve_name_timing = resolve_name_timing_from_string(optarg);
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if (arg_resolve_name_timing < 0)
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return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
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"--resolve-names= must be early, late or never");
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break;
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case 'V':
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return print_version();
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case 'h':
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return help();
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case '?':
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return -EINVAL;
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default:
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assert_not_reached("Unknown option");
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}
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if (!argv[optind])
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return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
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"syspath parameter missing.");
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/* add /sys if needed */
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if (!path_startswith(argv[optind], "/sys"))
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strscpyl(arg_syspath, sizeof(arg_syspath), "/sys", argv[optind], NULL);
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else
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strscpy(arg_syspath, sizeof(arg_syspath), argv[optind]);
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return 1;
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}
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int test_main(int argc, char *argv[], void *userdata) {
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_cleanup_(udev_rules_freep) UdevRules *rules = NULL;
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_cleanup_(udev_event_freep) UdevEvent *event = NULL;
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_cleanup_(sd_device_unrefp) sd_device *dev = NULL;
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const char *cmd, *key, *value;
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sigset_t mask, sigmask_orig;
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void *val;
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int r;
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log_set_max_level(LOG_DEBUG);
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r = parse_argv(argc, argv);
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if (r <= 0)
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return r;
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printf("This program is for debugging only, it does not run any program\n"
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"specified by a RUN key. It may show incorrect results, because\n"
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"some values may be different, or not available at a simulation run.\n"
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"\n");
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assert_se(sigprocmask(SIG_SETMASK, NULL, &sigmask_orig) >= 0);
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udev_builtin_init();
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r = udev_rules_load(&rules, arg_resolve_name_timing);
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if (r < 0) {
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log_error_errno(r, "Failed to read udev rules: %m");
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goto out;
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}
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r = device_new_from_synthetic_event(&dev, arg_syspath, arg_action);
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if (r < 0) {
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log_error_errno(r, "Failed to open device '%s': %m", arg_syspath);
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goto out;
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}
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/* don't read info from the db */
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device_seal(dev);
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event = udev_event_new(dev, 0, NULL, LOG_DEBUG);
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assert_se(sigfillset(&mask) >= 0);
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assert_se(sigprocmask(SIG_SETMASK, &mask, &sigmask_orig) >= 0);
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udev_event_execute_rules(event, 60 * USEC_PER_SEC, SIGKILL, NULL, rules);
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FOREACH_DEVICE_PROPERTY(dev, key, value)
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printf("%s=%s\n", key, value);
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ORDERED_HASHMAP_FOREACH_KEY(val, cmd, event->run_list) {
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char program[UDEV_PATH_SIZE];
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(void) udev_event_apply_format(event, cmd, program, sizeof(program), false);
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printf("run: '%s'\n", program);
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}
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r = 0;
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out:
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udev_builtin_exit();
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return r;
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}
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