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Commit | Line | Data |
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1298001e KS |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2008-2012 Kay Sievers <kay@vrfy.org> | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU Lesser General Public License as published by | |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public License | |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
18 | ***/ | |
33a5cc29 | 19 | |
33a5cc29 KS |
20 | #include <stdio.h> |
21 | #include <stdarg.h> | |
64ccdf82 | 22 | #include <stdlib.h> |
ba6929f6 KS |
23 | #include <unistd.h> |
24 | #include <errno.h> | |
25 | #include <string.h> | |
b2d9e4f2 KS |
26 | #include <getopt.h> |
27 | #include <syslog.h> | |
4c9dff47 | 28 | #include <fcntl.h> |
f2fd4d27 | 29 | #include <sys/epoll.h> |
ba6929f6 | 30 | |
33a5cc29 | 31 | #include "libudev.h" |
33502ffe | 32 | #include "util.h" |
33a5cc29 | 33 | |
f2fd4d27 KS |
34 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
35 | ||
33a5cc29 | 36 | static void log_fn(struct udev *udev, |
912541b0 KS |
37 | int priority, const char *file, int line, const char *fn, |
38 | const char *format, va_list args) | |
33a5cc29 | 39 | { |
912541b0 KS |
40 | printf("test-libudev: %s %s:%d ", fn, file, line); |
41 | vprintf(format, args); | |
33a5cc29 KS |
42 | } |
43 | ||
ba6929f6 KS |
44 | static void print_device(struct udev_device *device) |
45 | { | |
912541b0 KS |
46 | const char *str; |
47 | dev_t devnum; | |
48 | int count; | |
49 | struct udev_list_entry *list_entry; | |
50 | ||
51 | printf("*** device: %p ***\n", device); | |
52 | str = udev_device_get_action(device); | |
53 | if (str != NULL) | |
54 | printf("action: '%s'\n", str); | |
55 | ||
56 | str = udev_device_get_syspath(device); | |
57 | printf("syspath: '%s'\n", str); | |
58 | ||
59 | str = udev_device_get_sysname(device); | |
60 | printf("sysname: '%s'\n", str); | |
61 | ||
62 | str = udev_device_get_sysnum(device); | |
63 | if (str != NULL) | |
64 | printf("sysnum: '%s'\n", str); | |
65 | ||
66 | str = udev_device_get_devpath(device); | |
67 | printf("devpath: '%s'\n", str); | |
68 | ||
69 | str = udev_device_get_subsystem(device); | |
70 | if (str != NULL) | |
71 | printf("subsystem: '%s'\n", str); | |
72 | ||
73 | str = udev_device_get_devtype(device); | |
74 | if (str != NULL) | |
75 | printf("devtype: '%s'\n", str); | |
76 | ||
77 | str = udev_device_get_driver(device); | |
78 | if (str != NULL) | |
79 | printf("driver: '%s'\n", str); | |
80 | ||
81 | str = udev_device_get_devnode(device); | |
82 | if (str != NULL) | |
83 | printf("devname: '%s'\n", str); | |
84 | ||
85 | devnum = udev_device_get_devnum(device); | |
86 | if (major(devnum) > 0) | |
87 | printf("devnum: %u:%u\n", major(devnum), minor(devnum)); | |
88 | ||
89 | count = 0; | |
90 | udev_list_entry_foreach(list_entry, udev_device_get_devlinks_list_entry(device)) { | |
91 | printf("link: '%s'\n", udev_list_entry_get_name(list_entry)); | |
92 | count++; | |
93 | } | |
94 | if (count > 0) | |
95 | printf("found %i links\n", count); | |
96 | ||
97 | count = 0; | |
98 | udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(device)) { | |
99 | printf("property: '%s=%s'\n", | |
100 | udev_list_entry_get_name(list_entry), | |
101 | udev_list_entry_get_value(list_entry)); | |
102 | count++; | |
103 | } | |
104 | if (count > 0) | |
105 | printf("found %i properties\n", count); | |
106 | ||
107 | str = udev_device_get_property_value(device, "MAJOR"); | |
108 | if (str != NULL) | |
109 | printf("MAJOR: '%s'\n", str); | |
110 | ||
111 | str = udev_device_get_sysattr_value(device, "dev"); | |
112 | if (str != NULL) | |
113 | printf("attr{dev}: '%s'\n", str); | |
114 | ||
115 | printf("\n"); | |
ba6929f6 KS |
116 | } |
117 | ||
8753fadf | 118 | static int test_device(struct udev *udev, const char *syspath) |
ba6929f6 | 119 | { |
912541b0 KS |
120 | struct udev_device *device; |
121 | ||
122 | printf("looking at device: %s\n", syspath); | |
123 | device = udev_device_new_from_syspath(udev, syspath); | |
124 | if (device == NULL) { | |
125 | printf("no device found\n"); | |
126 | return -1; | |
127 | } | |
128 | print_device(device); | |
129 | udev_device_unref(device); | |
130 | return 0; | |
33a5cc29 KS |
131 | } |
132 | ||
8753fadf | 133 | static int test_device_parents(struct udev *udev, const char *syspath) |
4ad3a37f | 134 | { |
912541b0 KS |
135 | struct udev_device *device; |
136 | struct udev_device *device_parent; | |
137 | ||
138 | printf("looking at device: %s\n", syspath); | |
139 | device = udev_device_new_from_syspath(udev, syspath); | |
140 | if (device == NULL) | |
141 | return -1; | |
142 | ||
143 | printf("looking at parents\n"); | |
144 | device_parent = device; | |
145 | do { | |
146 | print_device(device_parent); | |
147 | device_parent = udev_device_get_parent(device_parent); | |
148 | } while (device_parent != NULL); | |
149 | ||
150 | printf("looking at parents again\n"); | |
151 | device_parent = device; | |
152 | do { | |
153 | print_device(device_parent); | |
154 | device_parent = udev_device_get_parent(device_parent); | |
155 | } while (device_parent != NULL); | |
156 | udev_device_unref(device); | |
157 | ||
158 | return 0; | |
4ad3a37f KS |
159 | } |
160 | ||
4c9dff47 KS |
161 | static int test_device_devnum(struct udev *udev) |
162 | { | |
912541b0 KS |
163 | dev_t devnum = makedev(1, 3); |
164 | struct udev_device *device; | |
165 | ||
166 | printf("looking up device: %u:%u\n", major(devnum), minor(devnum)); | |
167 | device = udev_device_new_from_devnum(udev, 'c', devnum); | |
168 | if (device == NULL) | |
169 | return -1; | |
170 | print_device(device); | |
171 | udev_device_unref(device); | |
172 | return 0; | |
4c9dff47 KS |
173 | } |
174 | ||
90d80c2e KS |
175 | static int test_device_subsys_name(struct udev *udev) |
176 | { | |
912541b0 KS |
177 | struct udev_device *device; |
178 | ||
179 | printf("looking up device: 'block':'sda'\n"); | |
180 | device = udev_device_new_from_subsystem_sysname(udev, "block", "sda"); | |
181 | if (device == NULL) | |
182 | return -1; | |
183 | print_device(device); | |
184 | udev_device_unref(device); | |
185 | ||
186 | printf("looking up device: 'subsystem':'pci'\n"); | |
187 | device = udev_device_new_from_subsystem_sysname(udev, "subsystem", "pci"); | |
188 | if (device == NULL) | |
189 | return -1; | |
190 | print_device(device); | |
191 | udev_device_unref(device); | |
192 | ||
193 | printf("looking up device: 'drivers':'scsi:sd'\n"); | |
194 | device = udev_device_new_from_subsystem_sysname(udev, "drivers", "scsi:sd"); | |
195 | if (device == NULL) | |
196 | return -1; | |
197 | print_device(device); | |
198 | udev_device_unref(device); | |
199 | ||
200 | printf("looking up device: 'module':'printk'\n"); | |
201 | device = udev_device_new_from_subsystem_sysname(udev, "module", "printk"); | |
202 | if (device == NULL) | |
203 | return -1; | |
204 | print_device(device); | |
205 | udev_device_unref(device); | |
206 | return 0; | |
90d80c2e KS |
207 | } |
208 | ||
bc8184ed | 209 | static int test_enumerate_print_list(struct udev_enumerate *enumerate) |
33a5cc29 | 210 | { |
912541b0 KS |
211 | struct udev_list_entry *list_entry; |
212 | int count = 0; | |
213 | ||
214 | udev_list_entry_foreach(list_entry, udev_enumerate_get_list_entry(enumerate)) { | |
215 | struct udev_device *device; | |
216 | ||
217 | device = udev_device_new_from_syspath(udev_enumerate_get_udev(enumerate), | |
218 | udev_list_entry_get_name(list_entry)); | |
219 | if (device != NULL) { | |
220 | printf("device: '%s' (%s)\n", | |
221 | udev_device_get_syspath(device), | |
222 | udev_device_get_subsystem(device)); | |
223 | udev_device_unref(device); | |
224 | count++; | |
225 | } | |
226 | } | |
227 | printf("found %i devices\n\n", count); | |
228 | return count; | |
ba6929f6 KS |
229 | } |
230 | ||
f1986e09 | 231 | static int test_monitor(struct udev *udev) |
ba6929f6 | 232 | { |
912541b0 KS |
233 | struct udev_monitor *udev_monitor = NULL; |
234 | int fd_ep; | |
235 | int fd_udev = -1; | |
236 | struct epoll_event ep_udev, ep_stdin; | |
237 | ||
238 | fd_ep = epoll_create1(EPOLL_CLOEXEC); | |
239 | if (fd_ep < 0) { | |
240 | printf("error creating epoll fd: %m\n"); | |
241 | goto out; | |
242 | } | |
243 | ||
244 | udev_monitor = udev_monitor_new_from_netlink(udev, "udev"); | |
245 | if (udev_monitor == NULL) { | |
246 | printf("no socket\n"); | |
247 | goto out; | |
248 | } | |
249 | fd_udev = udev_monitor_get_fd(udev_monitor); | |
250 | ||
251 | if (udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "block", NULL) < 0 || | |
252 | udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "tty", NULL) < 0 || | |
253 | udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "usb", "usb_device") < 0) { | |
254 | printf("filter failed\n"); | |
255 | goto out; | |
256 | } | |
257 | ||
258 | if (udev_monitor_enable_receiving(udev_monitor) < 0) { | |
259 | printf("bind failed\n"); | |
260 | goto out; | |
261 | } | |
262 | ||
263 | memset(&ep_udev, 0, sizeof(struct epoll_event)); | |
264 | ep_udev.events = EPOLLIN; | |
265 | ep_udev.data.fd = fd_udev; | |
266 | if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_udev, &ep_udev) < 0) { | |
267 | printf("fail to add fd to epoll: %m\n"); | |
268 | goto out; | |
269 | } | |
270 | ||
271 | memset(&ep_stdin, 0, sizeof(struct epoll_event)); | |
272 | ep_stdin.events = EPOLLIN; | |
273 | ep_stdin.data.fd = STDIN_FILENO; | |
274 | if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, STDIN_FILENO, &ep_stdin) < 0) { | |
275 | printf("fail to add fd to epoll: %m\n"); | |
276 | goto out; | |
277 | } | |
278 | ||
279 | for (;;) { | |
280 | int fdcount; | |
281 | struct epoll_event ev[4]; | |
282 | struct udev_device *device; | |
283 | int i; | |
284 | ||
285 | printf("waiting for events from udev, press ENTER to exit\n"); | |
286 | fdcount = epoll_wait(fd_ep, ev, ARRAY_SIZE(ev), -1); | |
287 | printf("epoll fd count: %i\n", fdcount); | |
288 | ||
289 | for (i = 0; i < fdcount; i++) { | |
290 | if (ev[i].data.fd == fd_udev && ev[i].events & EPOLLIN) { | |
291 | device = udev_monitor_receive_device(udev_monitor); | |
292 | if (device == NULL) { | |
293 | printf("no device from socket\n"); | |
294 | continue; | |
295 | } | |
296 | print_device(device); | |
297 | udev_device_unref(device); | |
298 | } else if (ev[i].data.fd == STDIN_FILENO && ev[i].events & EPOLLIN) { | |
299 | printf("exiting loop\n"); | |
300 | goto out; | |
301 | } | |
302 | } | |
303 | } | |
f2fd4d27 | 304 | out: |
912541b0 KS |
305 | if (fd_ep >= 0) |
306 | close(fd_ep); | |
307 | udev_monitor_unref(udev_monitor); | |
308 | return 0; | |
33a5cc29 KS |
309 | } |
310 | ||
64ccdf82 KS |
311 | static int test_queue(struct udev *udev) |
312 | { | |
912541b0 KS |
313 | struct udev_queue *udev_queue; |
314 | unsigned long long int seqnum; | |
315 | struct udev_list_entry *list_entry; | |
316 | ||
317 | udev_queue = udev_queue_new(udev); | |
318 | if (udev_queue == NULL) | |
319 | return -1; | |
320 | seqnum = udev_queue_get_kernel_seqnum(udev_queue); | |
321 | printf("seqnum kernel: %llu\n", seqnum); | |
322 | seqnum = udev_queue_get_udev_seqnum(udev_queue); | |
323 | printf("seqnum udev : %llu\n", seqnum); | |
324 | ||
325 | if (udev_queue_get_queue_is_empty(udev_queue)) | |
326 | printf("queue is empty\n"); | |
327 | printf("get queue list\n"); | |
328 | udev_list_entry_foreach(list_entry, udev_queue_get_queued_list_entry(udev_queue)) | |
329 | printf("queued: '%s' [%s]\n", udev_list_entry_get_name(list_entry), udev_list_entry_get_value(list_entry)); | |
330 | printf("\n"); | |
331 | printf("get queue list again\n"); | |
332 | udev_list_entry_foreach(list_entry, udev_queue_get_queued_list_entry(udev_queue)) | |
333 | printf("queued: '%s' [%s]\n", udev_list_entry_get_name(list_entry), udev_list_entry_get_value(list_entry)); | |
334 | printf("\n"); | |
335 | ||
336 | list_entry = udev_queue_get_queued_list_entry(udev_queue); | |
337 | if (list_entry != NULL) { | |
338 | printf("event [%llu] is queued\n", seqnum); | |
339 | seqnum = strtoull(udev_list_entry_get_value(list_entry), NULL, 10); | |
340 | if (udev_queue_get_seqnum_is_finished(udev_queue, seqnum)) | |
341 | printf("event [%llu] is not finished\n", seqnum); | |
342 | else | |
343 | printf("event [%llu] is finished\n", seqnum); | |
344 | } | |
345 | printf("\n"); | |
346 | udev_queue_unref(udev_queue); | |
347 | return 0; | |
64ccdf82 KS |
348 | } |
349 | ||
90d80c2e KS |
350 | static int test_enumerate(struct udev *udev, const char *subsystem) |
351 | { | |
912541b0 KS |
352 | struct udev_enumerate *udev_enumerate; |
353 | ||
354 | printf("enumerate '%s'\n", subsystem == NULL ? "<all>" : subsystem); | |
355 | udev_enumerate = udev_enumerate_new(udev); | |
356 | if (udev_enumerate == NULL) | |
357 | return -1; | |
358 | udev_enumerate_add_match_subsystem(udev_enumerate, subsystem); | |
359 | udev_enumerate_scan_devices(udev_enumerate); | |
360 | test_enumerate_print_list(udev_enumerate); | |
361 | udev_enumerate_unref(udev_enumerate); | |
362 | ||
363 | printf("enumerate 'net' + duplicated scan + null + zero\n"); | |
364 | udev_enumerate = udev_enumerate_new(udev); | |
365 | if (udev_enumerate == NULL) | |
366 | return -1; | |
367 | udev_enumerate_add_match_subsystem(udev_enumerate, "net"); | |
368 | udev_enumerate_scan_devices(udev_enumerate); | |
369 | udev_enumerate_scan_devices(udev_enumerate); | |
370 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero"); | |
371 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/null"); | |
372 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero"); | |
373 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/null"); | |
374 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero"); | |
375 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/null"); | |
376 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/null"); | |
377 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero"); | |
378 | udev_enumerate_add_syspath(udev_enumerate, "/sys/class/mem/zero"); | |
379 | udev_enumerate_scan_devices(udev_enumerate); | |
380 | test_enumerate_print_list(udev_enumerate); | |
381 | udev_enumerate_unref(udev_enumerate); | |
382 | ||
383 | printf("enumerate 'block'\n"); | |
384 | udev_enumerate = udev_enumerate_new(udev); | |
385 | if (udev_enumerate == NULL) | |
386 | return -1; | |
387 | udev_enumerate_add_match_subsystem(udev_enumerate,"block"); | |
388 | udev_enumerate_add_match_is_initialized(udev_enumerate); | |
389 | udev_enumerate_scan_devices(udev_enumerate); | |
390 | test_enumerate_print_list(udev_enumerate); | |
391 | udev_enumerate_unref(udev_enumerate); | |
392 | ||
393 | printf("enumerate 'not block'\n"); | |
394 | udev_enumerate = udev_enumerate_new(udev); | |
395 | if (udev_enumerate == NULL) | |
396 | return -1; | |
397 | udev_enumerate_add_nomatch_subsystem(udev_enumerate, "block"); | |
398 | udev_enumerate_scan_devices(udev_enumerate); | |
399 | test_enumerate_print_list(udev_enumerate); | |
400 | udev_enumerate_unref(udev_enumerate); | |
401 | ||
402 | printf("enumerate 'pci, mem, vc'\n"); | |
403 | udev_enumerate = udev_enumerate_new(udev); | |
404 | if (udev_enumerate == NULL) | |
405 | return -1; | |
406 | udev_enumerate_add_match_subsystem(udev_enumerate, "pci"); | |
407 | udev_enumerate_add_match_subsystem(udev_enumerate, "mem"); | |
408 | udev_enumerate_add_match_subsystem(udev_enumerate, "vc"); | |
409 | udev_enumerate_scan_devices(udev_enumerate); | |
410 | test_enumerate_print_list(udev_enumerate); | |
411 | udev_enumerate_unref(udev_enumerate); | |
412 | ||
413 | printf("enumerate 'subsystem'\n"); | |
414 | udev_enumerate = udev_enumerate_new(udev); | |
415 | if (udev_enumerate == NULL) | |
416 | return -1; | |
417 | udev_enumerate_scan_subsystems(udev_enumerate); | |
418 | test_enumerate_print_list(udev_enumerate); | |
419 | udev_enumerate_unref(udev_enumerate); | |
420 | ||
421 | printf("enumerate 'property IF_FS_*=filesystem'\n"); | |
422 | udev_enumerate = udev_enumerate_new(udev); | |
423 | if (udev_enumerate == NULL) | |
424 | return -1; | |
425 | udev_enumerate_add_match_property(udev_enumerate, "ID_FS*", "filesystem"); | |
426 | udev_enumerate_scan_devices(udev_enumerate); | |
427 | test_enumerate_print_list(udev_enumerate); | |
428 | udev_enumerate_unref(udev_enumerate); | |
429 | return 0; | |
90d80c2e KS |
430 | } |
431 | ||
2001208c KS |
432 | static int test_hwdb(struct udev *udev, const char *modalias) { |
433 | struct udev_hwdb * hwdb; | |
434 | struct udev_list_entry *entry; | |
435 | ||
436 | hwdb = udev_hwdb_new(udev); | |
437 | ||
438 | udev_list_entry_foreach(entry, udev_hwdb_get_properties_list_entry(hwdb, modalias, 0)) | |
439 | printf("'%s'='%s'\n", udev_list_entry_get_name(entry), udev_list_entry_get_value(entry)); | |
440 | printf("\n"); | |
441 | ||
442 | hwdb = udev_hwdb_unref(hwdb); | |
443 | return 0; | |
444 | } | |
445 | ||
90d80c2e | 446 | int main(int argc, char *argv[]) |
33a5cc29 | 447 | { |
912541b0 KS |
448 | struct udev *udev = NULL; |
449 | static const struct option options[] = { | |
450 | { "syspath", required_argument, NULL, 'p' }, | |
451 | { "subsystem", required_argument, NULL, 's' }, | |
452 | { "debug", no_argument, NULL, 'd' }, | |
453 | { "help", no_argument, NULL, 'h' }, | |
454 | { "version", no_argument, NULL, 'V' }, | |
455 | {} | |
456 | }; | |
457 | const char *syspath = "/devices/virtual/mem/null"; | |
458 | const char *subsystem = NULL; | |
459 | char path[1024]; | |
912541b0 KS |
460 | |
461 | udev = udev_new(); | |
462 | printf("context: %p\n", udev); | |
463 | if (udev == NULL) { | |
464 | printf("no context\n"); | |
465 | return 1; | |
466 | } | |
467 | udev_set_log_fn(udev, log_fn); | |
468 | printf("set log: %p\n", log_fn); | |
469 | ||
470 | for (;;) { | |
471 | int option; | |
472 | ||
473 | option = getopt_long(argc, argv, "+p:s:dhV", options, NULL); | |
474 | if (option == -1) | |
475 | break; | |
476 | ||
477 | switch (option) { | |
478 | case 'p': | |
479 | syspath = optarg; | |
480 | break; | |
481 | case 's': | |
482 | subsystem = optarg; | |
483 | break; | |
484 | case 'd': | |
485 | if (udev_get_log_priority(udev) < LOG_INFO) | |
486 | udev_set_log_priority(udev, LOG_INFO); | |
487 | break; | |
488 | case 'h': | |
489 | printf("--debug --syspath= --subsystem= --help\n"); | |
490 | goto out; | |
491 | case 'V': | |
492 | printf("%s\n", VERSION); | |
493 | goto out; | |
494 | default: | |
495 | goto out; | |
496 | } | |
497 | } | |
498 | ||
912541b0 | 499 | /* add sys path if needed */ |
33502ffe | 500 | if (!startswith(syspath, "/sys")) { |
6ada823a | 501 | snprintf(path, sizeof(path), "/sys/%s", syspath); |
912541b0 KS |
502 | syspath = path; |
503 | } | |
504 | ||
505 | test_device(udev, syspath); | |
506 | test_device_devnum(udev); | |
507 | test_device_subsys_name(udev); | |
508 | test_device_parents(udev, syspath); | |
509 | ||
510 | test_enumerate(udev, subsystem); | |
511 | ||
512 | test_queue(udev); | |
513 | ||
2001208c KS |
514 | test_hwdb(udev, "usb:v0D50p0011*"); |
515 | ||
912541b0 | 516 | test_monitor(udev); |
b2d9e4f2 | 517 | out: |
912541b0 KS |
518 | udev_unref(udev); |
519 | return 0; | |
33a5cc29 | 520 | } |