Line data Source code
1 : /* SPDX-License-Identifier: GPL-2.0+ */
2 : /*
3 : * Copyright © 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
4 : */
5 :
6 : #include <errno.h>
7 : #include <getopt.h>
8 : #include <signal.h>
9 : #include <stddef.h>
10 : #include <stdio.h>
11 : #include <stdlib.h>
12 : #include <sys/signalfd.h>
13 : #include <unistd.h>
14 :
15 : #include "sd-device.h"
16 :
17 : #include "device-private.h"
18 : #include "device-util.h"
19 : #include "libudev-util.h"
20 : #include "string-util.h"
21 : #include "strxcpyx.h"
22 : #include "udev-builtin.h"
23 : #include "udev-event.h"
24 : #include "udevadm.h"
25 :
26 : static const char *arg_action = "add";
27 : static ResolveNameTiming arg_resolve_name_timing = RESOLVE_NAME_EARLY;
28 : static char arg_syspath[UTIL_PATH_SIZE] = {};
29 :
30 0 : static int help(void) {
31 :
32 0 : printf("%s test [OPTIONS] DEVPATH\n\n"
33 : "Test an event run.\n\n"
34 : " -h --help Show this help\n"
35 : " -V --version Show package version\n"
36 : " -a --action=ACTION|help Set action string\n"
37 : " -N --resolve-names=early|late|never When to resolve names\n"
38 : , program_invocation_short_name);
39 :
40 0 : return 0;
41 : }
42 :
43 0 : static int parse_argv(int argc, char *argv[]) {
44 : static const struct option options[] = {
45 : { "action", required_argument, NULL, 'a' },
46 : { "resolve-names", required_argument, NULL, 'N' },
47 : { "version", no_argument, NULL, 'V' },
48 : { "help", no_argument, NULL, 'h' },
49 : {}
50 : };
51 :
52 : int c;
53 :
54 0 : while ((c = getopt_long(argc, argv, "a:N:Vh", options, NULL)) >= 0)
55 0 : switch (c) {
56 0 : case 'a': {
57 : DeviceAction a;
58 :
59 0 : if (streq(optarg, "help")) {
60 0 : dump_device_action_table();
61 0 : return 0;
62 : }
63 :
64 0 : a = device_action_from_string(optarg);
65 0 : if (a < 0)
66 0 : return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
67 : "Invalid action '%s'", optarg);
68 :
69 0 : arg_action = optarg;
70 0 : break;
71 : }
72 0 : case 'N':
73 0 : arg_resolve_name_timing = resolve_name_timing_from_string(optarg);
74 0 : if (arg_resolve_name_timing < 0)
75 0 : return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
76 : "--resolve-names= must be early, late or never");
77 0 : break;
78 0 : case 'V':
79 0 : return print_version();
80 0 : case 'h':
81 0 : return help();
82 0 : case '?':
83 0 : return -EINVAL;
84 0 : default:
85 0 : assert_not_reached("Unknown option");
86 : }
87 :
88 0 : if (!argv[optind])
89 0 : return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
90 : "syspath parameter missing.");
91 :
92 : /* add /sys if needed */
93 0 : if (!startswith(argv[optind], "/sys"))
94 0 : strscpyl(arg_syspath, sizeof(arg_syspath), "/sys", argv[optind], NULL);
95 : else
96 0 : strscpy(arg_syspath, sizeof(arg_syspath), argv[optind]);
97 :
98 0 : return 1;
99 : }
100 :
101 0 : int test_main(int argc, char *argv[], void *userdata) {
102 0 : _cleanup_(udev_rules_freep) UdevRules *rules = NULL;
103 0 : _cleanup_(udev_event_freep) UdevEvent *event = NULL;
104 0 : _cleanup_(sd_device_unrefp) sd_device *dev = NULL;
105 : const char *cmd, *key, *value;
106 : sigset_t mask, sigmask_orig;
107 : Iterator i;
108 : void *val;
109 : int r;
110 :
111 0 : log_set_max_level(LOG_DEBUG);
112 :
113 0 : r = parse_argv(argc, argv);
114 0 : if (r <= 0)
115 0 : return r;
116 :
117 0 : printf("This program is for debugging only, it does not run any program\n"
118 : "specified by a RUN key. It may show incorrect results, because\n"
119 : "some values may be different, or not available at a simulation run.\n"
120 : "\n");
121 :
122 0 : assert_se(sigprocmask(SIG_SETMASK, NULL, &sigmask_orig) >= 0);
123 :
124 0 : udev_builtin_init();
125 :
126 0 : r = udev_rules_new(&rules, arg_resolve_name_timing);
127 0 : if (r < 0) {
128 0 : log_error_errno(r, "Failed to read udev rules: %m");
129 0 : goto out;
130 : }
131 :
132 0 : r = device_new_from_synthetic_event(&dev, arg_syspath, arg_action);
133 0 : if (r < 0) {
134 0 : log_error_errno(r, "Failed to open device '%s': %m", arg_syspath);
135 0 : goto out;
136 : }
137 :
138 : /* don't read info from the db */
139 0 : device_seal(dev);
140 :
141 0 : event = udev_event_new(dev, 0, NULL);
142 :
143 0 : assert_se(sigfillset(&mask) >= 0);
144 0 : assert_se(sigprocmask(SIG_SETMASK, &mask, &sigmask_orig) >= 0);
145 :
146 0 : udev_event_execute_rules(event, 60 * USEC_PER_SEC, NULL, rules);
147 :
148 0 : FOREACH_DEVICE_PROPERTY(dev, key, value)
149 0 : printf("%s=%s\n", key, value);
150 :
151 0 : ORDERED_HASHMAP_FOREACH_KEY(val, cmd, event->run_list, i) {
152 : char program[UTIL_PATH_SIZE];
153 :
154 0 : udev_event_apply_format(event, cmd, program, sizeof(program), false);
155 0 : printf("run: '%s'\n", program);
156 : }
157 :
158 0 : r = 0;
159 0 : out:
160 0 : udev_builtin_exit();
161 0 : return r;
162 : }
|
