]>
Commit | Line | Data |
---|---|---|
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" |
1ca208fb | 32 | #include "udev-util.h" |
33502ffe | 33 | #include "util.h" |
33a5cc29 | 34 | |
f2fd4d27 KS |
35 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) |
36 | ||
9091e686 | 37 | _printf_(6,0) |
33a5cc29 | 38 | static void log_fn(struct udev *udev, |
912541b0 | 39 | int priority, const char *file, int line, const char *fn, |
f168c273 | 40 | const char *format, va_list args) { |
912541b0 KS |
41 | printf("test-libudev: %s %s:%d ", fn, file, line); |
42 | vprintf(format, args); | |
33a5cc29 KS |
43 | } |
44 | ||
f168c273 | 45 | static void print_device(struct udev_device *device) { |
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 | ||
f168c273 | 118 | static int test_device(struct udev *udev, const char *syspath) { |
1ca208fb | 119 | _cleanup_udev_device_unref_ struct udev_device *device; |
912541b0 KS |
120 | |
121 | printf("looking at device: %s\n", syspath); | |
122 | device = udev_device_new_from_syspath(udev, syspath); | |
123 | if (device == NULL) { | |
124 | printf("no device found\n"); | |
125 | return -1; | |
126 | } | |
127 | print_device(device); | |
1ca208fb | 128 | |
912541b0 | 129 | return 0; |
33a5cc29 KS |
130 | } |
131 | ||
f168c273 | 132 | static int test_device_parents(struct udev *udev, const char *syspath) { |
1ca208fb | 133 | _cleanup_udev_device_unref_ struct udev_device *device; |
912541b0 KS |
134 | struct udev_device *device_parent; |
135 | ||
136 | printf("looking at device: %s\n", syspath); | |
137 | device = udev_device_new_from_syspath(udev, syspath); | |
138 | if (device == NULL) | |
139 | return -1; | |
140 | ||
141 | printf("looking at parents\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 | ||
148 | printf("looking at parents again\n"); | |
149 | device_parent = device; | |
150 | do { | |
151 | print_device(device_parent); | |
152 | device_parent = udev_device_get_parent(device_parent); | |
153 | } while (device_parent != NULL); | |
912541b0 KS |
154 | |
155 | return 0; | |
4ad3a37f KS |
156 | } |
157 | ||
f168c273 | 158 | static int test_device_devnum(struct udev *udev) { |
912541b0 KS |
159 | dev_t devnum = makedev(1, 3); |
160 | struct udev_device *device; | |
161 | ||
162 | printf("looking up device: %u:%u\n", major(devnum), minor(devnum)); | |
163 | device = udev_device_new_from_devnum(udev, 'c', devnum); | |
164 | if (device == NULL) | |
165 | return -1; | |
166 | print_device(device); | |
167 | udev_device_unref(device); | |
168 | return 0; | |
4c9dff47 KS |
169 | } |
170 | ||
f168c273 | 171 | static int test_device_subsys_name(struct udev *udev) { |
912541b0 KS |
172 | struct udev_device *device; |
173 | ||
174 | printf("looking up device: 'block':'sda'\n"); | |
175 | device = udev_device_new_from_subsystem_sysname(udev, "block", "sda"); | |
176 | if (device == NULL) | |
177 | return -1; | |
178 | print_device(device); | |
179 | udev_device_unref(device); | |
180 | ||
181 | printf("looking up device: 'subsystem':'pci'\n"); | |
182 | device = udev_device_new_from_subsystem_sysname(udev, "subsystem", "pci"); | |
183 | if (device == NULL) | |
184 | return -1; | |
185 | print_device(device); | |
186 | udev_device_unref(device); | |
187 | ||
188 | printf("looking up device: 'drivers':'scsi:sd'\n"); | |
189 | device = udev_device_new_from_subsystem_sysname(udev, "drivers", "scsi:sd"); | |
190 | if (device == NULL) | |
191 | return -1; | |
192 | print_device(device); | |
193 | udev_device_unref(device); | |
194 | ||
195 | printf("looking up device: 'module':'printk'\n"); | |
196 | device = udev_device_new_from_subsystem_sysname(udev, "module", "printk"); | |
197 | if (device == NULL) | |
198 | return -1; | |
199 | print_device(device); | |
200 | udev_device_unref(device); | |
201 | return 0; | |
90d80c2e KS |
202 | } |
203 | ||
f168c273 | 204 | static int test_enumerate_print_list(struct udev_enumerate *enumerate) { |
912541b0 KS |
205 | struct udev_list_entry *list_entry; |
206 | int count = 0; | |
207 | ||
208 | udev_list_entry_foreach(list_entry, udev_enumerate_get_list_entry(enumerate)) { | |
209 | struct udev_device *device; | |
210 | ||
211 | device = udev_device_new_from_syspath(udev_enumerate_get_udev(enumerate), | |
212 | udev_list_entry_get_name(list_entry)); | |
213 | if (device != NULL) { | |
214 | printf("device: '%s' (%s)\n", | |
215 | udev_device_get_syspath(device), | |
216 | udev_device_get_subsystem(device)); | |
217 | udev_device_unref(device); | |
218 | count++; | |
219 | } | |
220 | } | |
221 | printf("found %i devices\n\n", count); | |
222 | return count; | |
ba6929f6 KS |
223 | } |
224 | ||
f168c273 | 225 | static int test_monitor(struct udev *udev) { |
912541b0 KS |
226 | struct udev_monitor *udev_monitor = NULL; |
227 | int fd_ep; | |
228 | int fd_udev = -1; | |
229 | struct epoll_event ep_udev, ep_stdin; | |
230 | ||
231 | fd_ep = epoll_create1(EPOLL_CLOEXEC); | |
232 | if (fd_ep < 0) { | |
233 | printf("error creating epoll fd: %m\n"); | |
234 | goto out; | |
235 | } | |
236 | ||
237 | udev_monitor = udev_monitor_new_from_netlink(udev, "udev"); | |
238 | if (udev_monitor == NULL) { | |
239 | printf("no socket\n"); | |
240 | goto out; | |
241 | } | |
242 | fd_udev = udev_monitor_get_fd(udev_monitor); | |
243 | ||
244 | if (udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "block", NULL) < 0 || | |
245 | udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "tty", NULL) < 0 || | |
246 | udev_monitor_filter_add_match_subsystem_devtype(udev_monitor, "usb", "usb_device") < 0) { | |
247 | printf("filter failed\n"); | |
248 | goto out; | |
249 | } | |
250 | ||
251 | if (udev_monitor_enable_receiving(udev_monitor) < 0) { | |
252 | printf("bind failed\n"); | |
253 | goto out; | |
254 | } | |
255 | ||
256 | memset(&ep_udev, 0, sizeof(struct epoll_event)); | |
257 | ep_udev.events = EPOLLIN; | |
258 | ep_udev.data.fd = fd_udev; | |
259 | if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_udev, &ep_udev) < 0) { | |
260 | printf("fail to add fd to epoll: %m\n"); | |
261 | goto out; | |
262 | } | |
263 | ||
264 | memset(&ep_stdin, 0, sizeof(struct epoll_event)); | |
265 | ep_stdin.events = EPOLLIN; | |
266 | ep_stdin.data.fd = STDIN_FILENO; | |
267 | if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, STDIN_FILENO, &ep_stdin) < 0) { | |
268 | printf("fail to add fd to epoll: %m\n"); | |
269 | goto out; | |
270 | } | |
271 | ||
272 | for (;;) { | |
273 | int fdcount; | |
274 | struct epoll_event ev[4]; | |
275 | struct udev_device *device; | |
276 | int i; | |
277 | ||
278 | printf("waiting for events from udev, press ENTER to exit\n"); | |
279 | fdcount = epoll_wait(fd_ep, ev, ARRAY_SIZE(ev), -1); | |
280 | printf("epoll fd count: %i\n", fdcount); | |
281 | ||
282 | for (i = 0; i < fdcount; i++) { | |
283 | if (ev[i].data.fd == fd_udev && ev[i].events & EPOLLIN) { | |
284 | device = udev_monitor_receive_device(udev_monitor); | |
285 | if (device == NULL) { | |
286 | printf("no device from socket\n"); | |
287 | continue; | |
288 | } | |
289 | print_device(device); | |
290 | udev_device_unref(device); | |
291 | } else if (ev[i].data.fd == STDIN_FILENO && ev[i].events & EPOLLIN) { | |
292 | printf("exiting loop\n"); | |
293 | goto out; | |
294 | } | |
295 | } | |
296 | } | |
f2fd4d27 | 297 | out: |
912541b0 KS |
298 | if (fd_ep >= 0) |
299 | close(fd_ep); | |
300 | udev_monitor_unref(udev_monitor); | |
301 | return 0; | |
33a5cc29 KS |
302 | } |
303 | ||
f168c273 | 304 | static int test_queue(struct udev *udev) { |
912541b0 KS |
305 | struct udev_queue *udev_queue; |
306 | unsigned long long int seqnum; | |
307 | struct udev_list_entry *list_entry; | |
308 | ||
309 | udev_queue = udev_queue_new(udev); | |
310 | if (udev_queue == NULL) | |
311 | return -1; | |
312 | seqnum = udev_queue_get_kernel_seqnum(udev_queue); | |
313 | printf("seqnum kernel: %llu\n", seqnum); | |
314 | seqnum = udev_queue_get_udev_seqnum(udev_queue); | |
315 | printf("seqnum udev : %llu\n", seqnum); | |
316 | ||
317 | if (udev_queue_get_queue_is_empty(udev_queue)) | |
318 | printf("queue is empty\n"); | |
319 | printf("get queue list\n"); | |
320 | udev_list_entry_foreach(list_entry, udev_queue_get_queued_list_entry(udev_queue)) | |
321 | printf("queued: '%s' [%s]\n", udev_list_entry_get_name(list_entry), udev_list_entry_get_value(list_entry)); | |
322 | printf("\n"); | |
323 | printf("get queue list again\n"); | |
324 | udev_list_entry_foreach(list_entry, udev_queue_get_queued_list_entry(udev_queue)) | |
325 | printf("queued: '%s' [%s]\n", udev_list_entry_get_name(list_entry), udev_list_entry_get_value(list_entry)); | |
326 | printf("\n"); | |
327 | ||
328 | list_entry = udev_queue_get_queued_list_entry(udev_queue); | |
329 | if (list_entry != NULL) { | |
330 | printf("event [%llu] is queued\n", seqnum); | |
331 | seqnum = strtoull(udev_list_entry_get_value(list_entry), NULL, 10); | |
332 | if (udev_queue_get_seqnum_is_finished(udev_queue, seqnum)) | |
333 | printf("event [%llu] is not finished\n", seqnum); | |
334 | else | |
335 | printf("event [%llu] is finished\n", seqnum); | |
336 | } | |
337 | printf("\n"); | |
338 | udev_queue_unref(udev_queue); | |
339 | return 0; | |
64ccdf82 KS |
340 | } |
341 | ||
f168c273 | 342 | static int test_enumerate(struct udev *udev, const char *subsystem) { |
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 | ||
872c8faa | 423 | static void test_hwdb(struct udev *udev, const char *modalias) { |
960787ae | 424 | struct udev_hwdb *hwdb; |
2001208c KS |
425 | struct udev_list_entry *entry; |
426 | ||
427 | hwdb = udev_hwdb_new(udev); | |
428 | ||
429 | udev_list_entry_foreach(entry, udev_hwdb_get_properties_list_entry(hwdb, modalias, 0)) | |
430 | printf("'%s'='%s'\n", udev_list_entry_get_name(entry), udev_list_entry_get_value(entry)); | |
431 | printf("\n"); | |
432 | ||
433 | hwdb = udev_hwdb_unref(hwdb); | |
872c8faa | 434 | assert(hwdb == NULL); |
2001208c KS |
435 | } |
436 | ||
f168c273 | 437 | int main(int argc, char *argv[]) { |
912541b0 KS |
438 | struct udev *udev = NULL; |
439 | static const struct option options[] = { | |
440 | { "syspath", required_argument, NULL, 'p' }, | |
441 | { "subsystem", required_argument, NULL, 's' }, | |
442 | { "debug", no_argument, NULL, 'd' }, | |
443 | { "help", no_argument, NULL, 'h' }, | |
444 | { "version", no_argument, NULL, 'V' }, | |
445 | {} | |
446 | }; | |
447 | const char *syspath = "/devices/virtual/mem/null"; | |
448 | const char *subsystem = NULL; | |
449 | char path[1024]; | |
912541b0 KS |
450 | |
451 | udev = udev_new(); | |
452 | printf("context: %p\n", udev); | |
453 | if (udev == NULL) { | |
454 | printf("no context\n"); | |
455 | return 1; | |
456 | } | |
457 | udev_set_log_fn(udev, log_fn); | |
458 | printf("set log: %p\n", log_fn); | |
459 | ||
460 | for (;;) { | |
461 | int option; | |
462 | ||
463 | option = getopt_long(argc, argv, "+p:s:dhV", options, NULL); | |
464 | if (option == -1) | |
465 | break; | |
466 | ||
467 | switch (option) { | |
468 | case 'p': | |
469 | syspath = optarg; | |
470 | break; | |
471 | case 's': | |
472 | subsystem = optarg; | |
473 | break; | |
474 | case 'd': | |
475 | if (udev_get_log_priority(udev) < LOG_INFO) | |
476 | udev_set_log_priority(udev, LOG_INFO); | |
477 | break; | |
478 | case 'h': | |
479 | printf("--debug --syspath= --subsystem= --help\n"); | |
480 | goto out; | |
481 | case 'V': | |
482 | printf("%s\n", VERSION); | |
483 | goto out; | |
484 | default: | |
485 | goto out; | |
486 | } | |
487 | } | |
488 | ||
912541b0 | 489 | /* add sys path if needed */ |
33502ffe | 490 | if (!startswith(syspath, "/sys")) { |
6ada823a | 491 | snprintf(path, sizeof(path), "/sys/%s", syspath); |
912541b0 KS |
492 | syspath = path; |
493 | } | |
494 | ||
495 | test_device(udev, syspath); | |
496 | test_device_devnum(udev); | |
497 | test_device_subsys_name(udev); | |
498 | test_device_parents(udev, syspath); | |
499 | ||
500 | test_enumerate(udev, subsystem); | |
501 | ||
502 | test_queue(udev); | |
503 | ||
2001208c KS |
504 | test_hwdb(udev, "usb:v0D50p0011*"); |
505 | ||
912541b0 | 506 | test_monitor(udev); |
b2d9e4f2 | 507 | out: |
912541b0 KS |
508 | udev_unref(udev); |
509 | return 0; | |
33a5cc29 | 510 | } |