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Commit | Line | Data |
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33a5cc29 KS |
1 | /* |
2 | * test-libudev | |
3 | * | |
4 | * Copyright (C) 2008 Kay Sievers <kay.sievers@vrfy.org> | |
5 | * | |
4061ab9f KS |
6 | * This library is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2.1 of the License, or (at your option) any later version. | |
33a5cc29 KS |
10 | */ |
11 | ||
33a5cc29 KS |
12 | #include <stdio.h> |
13 | #include <stdarg.h> | |
64ccdf82 | 14 | #include <stdlib.h> |
ba6929f6 KS |
15 | #include <unistd.h> |
16 | #include <errno.h> | |
17 | #include <string.h> | |
b2d9e4f2 KS |
18 | #include <getopt.h> |
19 | #include <syslog.h> | |
4c9dff47 | 20 | #include <fcntl.h> |
f2fd4d27 | 21 | #include <sys/epoll.h> |
ba6929f6 | 22 | |
33a5cc29 KS |
23 | #include "libudev.h" |
24 | ||
f2fd4d27 KS |
25 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
26 | ||
33a5cc29 | 27 | static void log_fn(struct udev *udev, |
912541b0 KS |
28 | int priority, const char *file, int line, const char *fn, |
29 | const char *format, va_list args) | |
33a5cc29 | 30 | { |
912541b0 KS |
31 | printf("test-libudev: %s %s:%d ", fn, file, line); |
32 | vprintf(format, args); | |
33a5cc29 KS |
33 | } |
34 | ||
ba6929f6 KS |
35 | static void print_device(struct udev_device *device) |
36 | { | |
912541b0 KS |
37 | const char *str; |
38 | dev_t devnum; | |
39 | int count; | |
40 | struct udev_list_entry *list_entry; | |
41 | ||
42 | printf("*** device: %p ***\n", device); | |
43 | str = udev_device_get_action(device); | |
44 | if (str != NULL) | |
45 | printf("action: '%s'\n", str); | |
46 | ||
47 | str = udev_device_get_syspath(device); | |
48 | printf("syspath: '%s'\n", str); | |
49 | ||
50 | str = udev_device_get_sysname(device); | |
51 | printf("sysname: '%s'\n", str); | |
52 | ||
53 | str = udev_device_get_sysnum(device); | |
54 | if (str != NULL) | |
55 | printf("sysnum: '%s'\n", str); | |
56 | ||
57 | str = udev_device_get_devpath(device); | |
58 | printf("devpath: '%s'\n", str); | |
59 | ||
60 | str = udev_device_get_subsystem(device); | |
61 | if (str != NULL) | |
62 | printf("subsystem: '%s'\n", str); | |
63 | ||
64 | str = udev_device_get_devtype(device); | |
65 | if (str != NULL) | |
66 | printf("devtype: '%s'\n", str); | |
67 | ||
68 | str = udev_device_get_driver(device); | |
69 | if (str != NULL) | |
70 | printf("driver: '%s'\n", str); | |
71 | ||
72 | str = udev_device_get_devnode(device); | |
73 | if (str != NULL) | |
74 | printf("devname: '%s'\n", str); | |
75 | ||
76 | devnum = udev_device_get_devnum(device); | |
77 | if (major(devnum) > 0) | |
78 | printf("devnum: %u:%u\n", major(devnum), minor(devnum)); | |
79 | ||
80 | count = 0; | |
81 | udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(device)) { | |
82 | printf("link: '%s'\n", udev_list_entry_get_name(list_entry)); | |
83 | count++; | |
84 | } | |
85 | if (count > 0) | |
86 | printf("found %i links\n", count); | |
87 | ||
88 | count = 0; | |
89 | udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(device)) { | |
90 | printf("property: '%s=%s'\n", | |
91 | udev_list_entry_get_name(list_entry), | |
92 | udev_list_entry_get_value(list_entry)); | |
93 | count++; | |
94 | } | |
95 | if (count > 0) | |
96 | printf("found %i properties\n", count); | |
97 | ||
98 | str = udev_device_get_property_value(device, "MAJOR"); | |
99 | if (str != NULL) | |
100 | printf("MAJOR: '%s'\n", str); | |
101 | ||
102 | str = udev_device_get_sysattr_value(device, "dev"); | |
103 | if (str != NULL) | |
104 | printf("attr{dev}: '%s'\n", str); | |
105 | ||
106 | printf("\n"); | |
ba6929f6 KS |
107 | } |
108 | ||
8753fadf | 109 | static int test_device(struct udev *udev, const char *syspath) |
ba6929f6 | 110 | { |
912541b0 KS |
111 | struct udev_device *device; |
112 | ||
113 | printf("looking at device: %s\n", syspath); | |
114 | device = udev_device_new_from_syspath(udev, syspath); | |
115 | if (device == NULL) { | |
116 | printf("no device found\n"); | |
117 | return -1; | |
118 | } | |
119 | print_device(device); | |
120 | udev_device_unref(device); | |
121 | return 0; | |
33a5cc29 KS |
122 | } |
123 | ||
8753fadf | 124 | static int test_device_parents(struct udev *udev, const char *syspath) |
4ad3a37f | 125 | { |
912541b0 KS |
126 | struct udev_device *device; |
127 | struct udev_device *device_parent; | |
128 | ||
129 | printf("looking at device: %s\n", syspath); | |
130 | device = udev_device_new_from_syspath(udev, syspath); | |
131 | if (device == NULL) | |
132 | return -1; | |
133 | ||
134 | printf("looking at parents\n"); | |
135 | device_parent = device; | |
136 | do { | |
137 | print_device(device_parent); | |
138 | device_parent = udev_device_get_parent(device_parent); | |
139 | } while (device_parent != NULL); | |
140 | ||
141 | printf("looking at parents again\n"); | |
142 | device_parent = device; | |
143 | do { | |
144 | print_device(device_parent); | |
145 | device_parent = udev_device_get_parent(device_parent); | |
146 | } while (device_parent != NULL); | |
147 | udev_device_unref(device); | |
148 | ||
149 | return 0; | |
4ad3a37f KS |
150 | } |
151 | ||
4c9dff47 KS |
152 | static int test_device_devnum(struct udev *udev) |
153 | { | |
912541b0 KS |
154 | dev_t devnum = makedev(1, 3); |
155 | struct udev_device *device; | |
156 | ||
157 | printf("looking up device: %u:%u\n", major(devnum), minor(devnum)); | |
158 | device = udev_device_new_from_devnum(udev, 'c', devnum); | |
159 | if (device == NULL) | |
160 | return -1; | |
161 | print_device(device); | |
162 | udev_device_unref(device); | |
163 | return 0; | |
4c9dff47 KS |
164 | } |
165 | ||
90d80c2e KS |
166 | static int test_device_subsys_name(struct udev *udev) |
167 | { | |
912541b0 KS |
168 | struct udev_device *device; |
169 | ||
170 | printf("looking up device: 'block':'sda'\n"); | |
171 | device = udev_device_new_from_subsystem_sysname(udev, "block", "sda"); | |
172 | if (device == NULL) | |
173 | return -1; | |
174 | print_device(device); | |
175 | udev_device_unref(device); | |
176 | ||
177 | printf("looking up device: 'subsystem':'pci'\n"); | |
178 | device = udev_device_new_from_subsystem_sysname(udev, "subsystem", "pci"); | |
179 | if (device == NULL) | |
180 | return -1; | |
181 | print_device(device); | |
182 | udev_device_unref(device); | |
183 | ||
184 | printf("looking up device: 'drivers':'scsi:sd'\n"); | |
185 | device = udev_device_new_from_subsystem_sysname(udev, "drivers", "scsi:sd"); | |
186 | if (device == NULL) | |
187 | return -1; | |
188 | print_device(device); | |
189 | udev_device_unref(device); | |
190 | ||
191 | printf("looking up device: 'module':'printk'\n"); | |
192 | device = udev_device_new_from_subsystem_sysname(udev, "module", "printk"); | |
193 | if (device == NULL) | |
194 | return -1; | |
195 | print_device(device); | |
196 | udev_device_unref(device); | |
197 | return 0; | |
90d80c2e KS |
198 | } |
199 | ||
bc8184ed | 200 | static int test_enumerate_print_list(struct udev_enumerate *enumerate) |
33a5cc29 | 201 | { |
912541b0 KS |
202 | struct udev_list_entry *list_entry; |
203 | int count = 0; | |
204 | ||
205 | udev_list_entry_foreach(list_entry, udev_enumerate_get_list_entry(enumerate)) { | |
206 | struct udev_device *device; | |
207 | ||
208 | device = udev_device_new_from_syspath(udev_enumerate_get_udev(enumerate), | |
209 | udev_list_entry_get_name(list_entry)); | |
210 | if (device != NULL) { | |
211 | printf("device: '%s' (%s)\n", | |
212 | udev_device_get_syspath(device), | |
213 | udev_device_get_subsystem(device)); | |
214 | udev_device_unref(device); | |
215 | count++; | |
216 | } | |
217 | } | |
218 | printf("found %i devices\n\n", count); | |
219 | return count; | |
ba6929f6 KS |
220 | } |
221 | ||
f1986e09 | 222 | static int test_monitor(struct udev *udev) |
ba6929f6 | 223 | { |
912541b0 KS |
224 | struct udev_monitor *udev_monitor = NULL; |
225 | int fd_ep; | |
226 | int fd_udev = -1; | |
227 | struct epoll_event ep_udev, ep_stdin; | |
228 | ||
229 | fd_ep = epoll_create1(EPOLL_CLOEXEC); | |
230 | if (fd_ep < 0) { | |
231 | printf("error creating epoll fd: %m\n"); | |
232 | goto out; | |
233 | } | |
234 | ||
235 | udev_monitor = udev_monitor_new_from_netlink(udev, "udev"); | |
236 | if (udev_monitor == NULL) { | |
237 | printf("no socket\n"); | |
238 | goto out; | |
239 | } | |
240 | fd_udev = udev_monitor_get_fd(udev_monitor); | |
241 | ||
242 | if (udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "block", NULL) < 0 || | |
243 | udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "tty", NULL) < 0 || | |
244 | udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "usb", "usb_device") < 0) { | |
245 | printf("filter failed\n"); | |
246 | goto out; | |
247 | } | |
248 | ||
249 | if (udev_monitor_enable_receiving(udev_monitor) < 0) { | |
250 | printf("bind failed\n"); | |
251 | goto out; | |
252 | } | |
253 | ||
254 | memset(&ep_udev, 0, sizeof(struct epoll_event)); | |
255 | ep_udev.events = EPOLLIN; | |
256 | ep_udev.data.fd = fd_udev; | |
257 | if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_udev, &ep_udev) < 0) { | |
258 | printf("fail to add fd to epoll: %m\n"); | |
259 | goto out; | |
260 | } | |
261 | ||
262 | memset(&ep_stdin, 0, sizeof(struct epoll_event)); | |
263 | ep_stdin.events = EPOLLIN; | |
264 | ep_stdin.data.fd = STDIN_FILENO; | |
265 | if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, STDIN_FILENO, &ep_stdin) < 0) { | |
266 | printf("fail to add fd to epoll: %m\n"); | |
267 | goto out; | |
268 | } | |
269 | ||
270 | for (;;) { | |
271 | int fdcount; | |
272 | struct epoll_event ev[4]; | |
273 | struct udev_device *device; | |
274 | int i; | |
275 | ||
276 | printf("waiting for events from udev, press ENTER to exit\n"); | |
277 | fdcount = epoll_wait(fd_ep, ev, ARRAY_SIZE(ev), -1); | |
278 | printf("epoll fd count: %i\n", fdcount); | |
279 | ||
280 | for (i = 0; i < fdcount; i++) { | |
281 | if (ev[i].data.fd == fd_udev && ev[i].events & EPOLLIN) { | |
282 | device = udev_monitor_receive_device(udev_monitor); | |
283 | if (device == NULL) { | |
284 | printf("no device from socket\n"); | |
285 | continue; | |
286 | } | |
287 | print_device(device); | |
288 | udev_device_unref(device); | |
289 | } else if (ev[i].data.fd == STDIN_FILENO && ev[i].events & EPOLLIN) { | |
290 | printf("exiting loop\n"); | |
291 | goto out; | |
292 | } | |
293 | } | |
294 | } | |
f2fd4d27 | 295 | out: |
912541b0 KS |
296 | if (fd_ep >= 0) |
297 | close(fd_ep); | |
298 | udev_monitor_unref(udev_monitor); | |
299 | return 0; | |
33a5cc29 KS |
300 | } |
301 | ||
64ccdf82 KS |
302 | static int test_queue(struct udev *udev) |
303 | { | |
912541b0 KS |
304 | struct udev_queue *udev_queue; |
305 | unsigned long long int seqnum; | |
306 | struct udev_list_entry *list_entry; | |
307 | ||
308 | udev_queue = udev_queue_new(udev); | |
309 | if (udev_queue == NULL) | |
310 | return -1; | |
311 | seqnum = udev_queue_get_kernel_seqnum(udev_queue); | |
312 | printf("seqnum kernel: %llu\n", seqnum); | |
313 | seqnum = udev_queue_get_udev_seqnum(udev_queue); | |
314 | printf("seqnum udev : %llu\n", seqnum); | |
315 | ||
316 | if (udev_queue_get_queue_is_empty(udev_queue)) | |
317 | printf("queue is empty\n"); | |
318 | printf("get queue list\n"); | |
319 | udev_list_entry_foreach(list_entry, udev_queue_get_queued_list_entry(udev_queue)) | |
320 | printf("queued: '%s' [%s]\n", udev_list_entry_get_name(list_entry), udev_list_entry_get_value(list_entry)); | |
321 | printf("\n"); | |
322 | printf("get queue list again\n"); | |
323 | udev_list_entry_foreach(list_entry, udev_queue_get_queued_list_entry(udev_queue)) | |
324 | printf("queued: '%s' [%s]\n", udev_list_entry_get_name(list_entry), udev_list_entry_get_value(list_entry)); | |
325 | printf("\n"); | |
326 | ||
327 | list_entry = udev_queue_get_queued_list_entry(udev_queue); | |
328 | if (list_entry != NULL) { | |
329 | printf("event [%llu] is queued\n", seqnum); | |
330 | seqnum = strtoull(udev_list_entry_get_value(list_entry), NULL, 10); | |
331 | if (udev_queue_get_seqnum_is_finished(udev_queue, seqnum)) | |
332 | printf("event [%llu] is not finished\n", seqnum); | |
333 | else | |
334 | printf("event [%llu] is finished\n", seqnum); | |
335 | } | |
336 | printf("\n"); | |
337 | udev_queue_unref(udev_queue); | |
338 | return 0; | |
64ccdf82 KS |
339 | } |
340 | ||
90d80c2e KS |
341 | static int test_enumerate(struct udev *udev, const char *subsystem) |
342 | { | |
912541b0 KS |
343 | struct udev_enumerate *udev_enumerate; |
344 | ||
345 | printf("enumerate '%s'\n", subsystem == NULL ? "<all>" : subsystem); | |
346 | udev_enumerate = udev_enumerate_new(udev); | |
347 | if (udev_enumerate == NULL) | |
348 | return -1; | |
349 | udev_enumerate_add_match_subsystem(udev_enumerate, subsystem); | |
350 | udev_enumerate_scan_devices(udev_enumerate); | |
351 | test_enumerate_print_list(udev_enumerate); | |
352 | udev_enumerate_unref(udev_enumerate); | |
353 | ||
354 | printf("enumerate 'net' + duplicated scan + null + zero\n"); | |
355 | udev_enumerate = udev_enumerate_new(udev); | |
356 | if (udev_enumerate == NULL) | |
357 | return -1; | |
358 | udev_enumerate_add_match_subsystem(udev_enumerate, "net"); | |
359 | udev_enumerate_scan_devices(udev_enumerate); | |
360 | udev_enumerate_scan_devices(udev_enumerate); | |
361 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero"); | |
362 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/null"); | |
363 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero"); | |
364 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/null"); | |
365 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero"); | |
366 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/null"); | |
367 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/null"); | |
368 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero"); | |
369 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero"); | |
370 | udev_enumerate_scan_devices(udev_enumerate); | |
371 | test_enumerate_print_list(udev_enumerate); | |
372 | udev_enumerate_unref(udev_enumerate); | |
373 | ||
374 | printf("enumerate 'block'\n"); | |
375 | udev_enumerate = udev_enumerate_new(udev); | |
376 | if (udev_enumerate == NULL) | |
377 | return -1; | |
378 | udev_enumerate_add_match_subsystem(udev_enumerate,"block"); | |
379 | udev_enumerate_add_match_is_initialized(udev_enumerate); | |
380 | udev_enumerate_scan_devices(udev_enumerate); | |
381 | test_enumerate_print_list(udev_enumerate); | |
382 | udev_enumerate_unref(udev_enumerate); | |
383 | ||
384 | printf("enumerate 'not block'\n"); | |
385 | udev_enumerate = udev_enumerate_new(udev); | |
386 | if (udev_enumerate == NULL) | |
387 | return -1; | |
388 | udev_enumerate_add_nomatch_subsystem(udev_enumerate, "block"); | |
389 | udev_enumerate_scan_devices(udev_enumerate); | |
390 | test_enumerate_print_list(udev_enumerate); | |
391 | udev_enumerate_unref(udev_enumerate); | |
392 | ||
393 | printf("enumerate 'pci, mem, vc'\n"); | |
394 | udev_enumerate = udev_enumerate_new(udev); | |
395 | if (udev_enumerate == NULL) | |
396 | return -1; | |
397 | udev_enumerate_add_match_subsystem(udev_enumerate, "pci"); | |
398 | udev_enumerate_add_match_subsystem(udev_enumerate, "mem"); | |
399 | udev_enumerate_add_match_subsystem(udev_enumerate, "vc"); | |
400 | udev_enumerate_scan_devices(udev_enumerate); | |
401 | test_enumerate_print_list(udev_enumerate); | |
402 | udev_enumerate_unref(udev_enumerate); | |
403 | ||
404 | printf("enumerate 'subsystem'\n"); | |
405 | udev_enumerate = udev_enumerate_new(udev); | |
406 | if (udev_enumerate == NULL) | |
407 | return -1; | |
408 | udev_enumerate_scan_subsystems(udev_enumerate); | |
409 | test_enumerate_print_list(udev_enumerate); | |
410 | udev_enumerate_unref(udev_enumerate); | |
411 | ||
412 | printf("enumerate 'property IF_FS_*=filesystem'\n"); | |
413 | udev_enumerate = udev_enumerate_new(udev); | |
414 | if (udev_enumerate == NULL) | |
415 | return -1; | |
416 | udev_enumerate_add_match_property(udev_enumerate, "ID_FS*", "filesystem"); | |
417 | udev_enumerate_scan_devices(udev_enumerate); | |
418 | test_enumerate_print_list(udev_enumerate); | |
419 | udev_enumerate_unref(udev_enumerate); | |
420 | return 0; | |
90d80c2e KS |
421 | } |
422 | ||
423 | int main(int argc, char *argv[]) | |
33a5cc29 | 424 | { |
912541b0 KS |
425 | struct udev *udev = NULL; |
426 | static const struct option options[] = { | |
427 | { "syspath", required_argument, NULL, 'p' }, | |
428 | { "subsystem", required_argument, NULL, 's' }, | |
429 | { "debug", no_argument, NULL, 'd' }, | |
430 | { "help", no_argument, NULL, 'h' }, | |
431 | { "version", no_argument, NULL, 'V' }, | |
432 | {} | |
433 | }; | |
434 | const char *syspath = "/devices/virtual/mem/null"; | |
435 | const char *subsystem = NULL; | |
436 | char path[1024]; | |
437 | const char *str; | |
438 | ||
439 | udev = udev_new(); | |
440 | printf("context: %p\n", udev); | |
441 | if (udev == NULL) { | |
442 | printf("no context\n"); | |
443 | return 1; | |
444 | } | |
445 | udev_set_log_fn(udev, log_fn); | |
446 | printf("set log: %p\n", log_fn); | |
447 | ||
448 | for (;;) { | |
449 | int option; | |
450 | ||
451 | option = getopt_long(argc, argv, "+p:s:dhV", options, NULL); | |
452 | if (option == -1) | |
453 | break; | |
454 | ||
455 | switch (option) { | |
456 | case 'p': | |
457 | syspath = optarg; | |
458 | break; | |
459 | case 's': | |
460 | subsystem = optarg; | |
461 | break; | |
462 | case 'd': | |
463 | if (udev_get_log_priority(udev) < LOG_INFO) | |
464 | udev_set_log_priority(udev, LOG_INFO); | |
465 | break; | |
466 | case 'h': | |
467 | printf("--debug --syspath= --subsystem= --help\n"); | |
468 | goto out; | |
469 | case 'V': | |
470 | printf("%s\n", VERSION); | |
471 | goto out; | |
472 | default: | |
473 | goto out; | |
474 | } | |
475 | } | |
476 | ||
477 | str = udev_get_sys_path(udev); | |
478 | printf("sys_path: '%s'\n", str); | |
479 | str = udev_get_dev_path(udev); | |
480 | printf("dev_path: '%s'\n", str); | |
481 | ||
482 | /* add sys path if needed */ | |
483 | if (strncmp(syspath, udev_get_sys_path(udev), strlen(udev_get_sys_path(udev))) != 0) { | |
484 | snprintf(path, sizeof(path), "%s%s", udev_get_sys_path(udev), syspath); | |
485 | syspath = path; | |
486 | } | |
487 | ||
488 | test_device(udev, syspath); | |
489 | test_device_devnum(udev); | |
490 | test_device_subsys_name(udev); | |
491 | test_device_parents(udev, syspath); | |
492 | ||
493 | test_enumerate(udev, subsystem); | |
494 | ||
495 | test_queue(udev); | |
496 | ||
497 | test_monitor(udev); | |
b2d9e4f2 | 498 | out: |
912541b0 KS |
499 | udev_unref(udev); |
500 | return 0; | |
33a5cc29 | 501 | } |