Line data Source code
1 : /* SPDX-License-Identifier: LGPL-2.1+ */
2 :
3 : #include <fcntl.h>
4 : #include <pthread.h>
5 : #include <stdlib.h>
6 : #include <unistd.h>
7 :
8 : #include "sd-bus.h"
9 :
10 : #include "alloc-util.h"
11 : #include "bus-error.h"
12 : #include "bus-internal.h"
13 : #include "bus-match.h"
14 : #include "bus-util.h"
15 : #include "errno-util.h"
16 : #include "fd-util.h"
17 : #include "format-util.h"
18 : #include "log.h"
19 : #include "macro.h"
20 : #include "tests.h"
21 : #include "util.h"
22 :
23 18 : static int match_callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
24 18 : log_info("Match triggered! interface=%s member=%s", strna(sd_bus_message_get_interface(m)), strna(sd_bus_message_get_member(m)));
25 18 : return 0;
26 : }
27 :
28 1 : static int object_callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
29 : int r;
30 :
31 1 : if (sd_bus_message_is_method_error(m, NULL))
32 0 : return 0;
33 :
34 1 : if (sd_bus_message_is_method_call(m, "org.object.test", "Foobar")) {
35 1 : log_info("Invoked Foobar() on %s", sd_bus_message_get_path(m));
36 :
37 1 : r = sd_bus_reply_method_return(m, NULL);
38 1 : if (r < 0)
39 0 : return log_error_errno(r, "Failed to send reply: %m");
40 :
41 1 : return 1;
42 : }
43 :
44 0 : return 0;
45 : }
46 :
47 1 : static int server_init(sd_bus **_bus) {
48 1 : sd_bus *bus = NULL;
49 : sd_id128_t id;
50 : int r;
51 : const char *unique, *desc;
52 :
53 1 : assert_se(_bus);
54 :
55 1 : r = sd_bus_open_user_with_description(&bus, "my bus!");
56 1 : if (r < 0) {
57 0 : log_error_errno(r, "Failed to connect to user bus: %m");
58 0 : goto fail;
59 : }
60 :
61 1 : r = sd_bus_get_bus_id(bus, &id);
62 1 : if (r < 0) {
63 0 : log_error_errno(r, "Failed to get server ID: %m");
64 0 : goto fail;
65 : }
66 :
67 1 : r = sd_bus_get_unique_name(bus, &unique);
68 1 : if (r < 0) {
69 0 : log_error_errno(r, "Failed to get unique name: %m");
70 0 : goto fail;
71 : }
72 :
73 1 : r = sd_bus_get_description(bus, &desc);
74 1 : assert_se(streq(desc, "my bus!"));
75 :
76 1 : log_info("Peer ID is " SD_ID128_FORMAT_STR ".", SD_ID128_FORMAT_VAL(id));
77 1 : log_info("Unique ID: %s", unique);
78 1 : log_info("Can send file handles: %i", sd_bus_can_send(bus, 'h'));
79 :
80 1 : r = sd_bus_request_name(bus, "org.freedesktop.systemd.test", 0);
81 1 : if (r < 0) {
82 0 : log_error_errno(r, "Failed to acquire name: %m");
83 0 : goto fail;
84 : }
85 :
86 1 : r = sd_bus_add_fallback(bus, NULL, "/foo/bar", object_callback, NULL);
87 1 : if (r < 0) {
88 0 : log_error_errno(r, "Failed to add object: %m");
89 0 : goto fail;
90 : }
91 :
92 1 : r = sd_bus_match_signal(bus, NULL, NULL, NULL, "foo.bar", "Notify", match_callback, NULL);
93 1 : if (r < 0) {
94 0 : log_error_errno(r, "Failed to request match: %m");
95 0 : goto fail;
96 : }
97 :
98 1 : r = sd_bus_add_match(bus, NULL, "type='signal',interface='org.freedesktop.DBus',member='NameOwnerChanged'", match_callback, NULL);
99 1 : if (r < 0) {
100 0 : log_error_errno(r, "Failed to add match: %m");
101 0 : goto fail;
102 : }
103 :
104 1 : bus_match_dump(&bus->match_callbacks, 0);
105 :
106 1 : *_bus = bus;
107 1 : return 0;
108 :
109 0 : fail:
110 0 : sd_bus_unref(bus);
111 0 : return r;
112 : }
113 :
114 1 : static int server(sd_bus *bus) {
115 : int r;
116 1 : bool client1_gone = false, client2_gone = false;
117 :
118 34 : while (!client1_gone || !client2_gone) {
119 33 : _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
120 33 : pid_t pid = 0;
121 33 : const char *label = NULL;
122 :
123 33 : r = sd_bus_process(bus, &m);
124 33 : if (r < 0) {
125 0 : log_error_errno(r, "Failed to process requests: %m");
126 0 : goto fail;
127 : }
128 :
129 33 : if (r == 0) {
130 5 : r = sd_bus_wait(bus, (uint64_t) -1);
131 5 : if (r < 0) {
132 0 : log_error_errno(r, "Failed to wait: %m");
133 0 : goto fail;
134 : }
135 :
136 5 : continue;
137 : }
138 :
139 28 : if (!m)
140 2 : continue;
141 :
142 26 : sd_bus_creds_get_pid(sd_bus_message_get_creds(m), &pid);
143 26 : sd_bus_creds_get_selinux_context(sd_bus_message_get_creds(m), &label);
144 26 : log_info("Got message! member=%s pid="PID_FMT" label=%s",
145 : strna(sd_bus_message_get_member(m)),
146 : pid,
147 : strna(label));
148 : /* bus_message_dump(m); */
149 : /* sd_bus_message_rewind(m, true); */
150 :
151 26 : if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "LowerCase")) {
152 : const char *hello;
153 1 : _cleanup_free_ char *lowercase = NULL;
154 :
155 1 : r = sd_bus_message_read(m, "s", &hello);
156 1 : if (r < 0) {
157 0 : log_error_errno(r, "Failed to get parameter: %m");
158 0 : goto fail;
159 : }
160 :
161 1 : lowercase = strdup(hello);
162 1 : if (!lowercase) {
163 0 : r = log_oom();
164 0 : goto fail;
165 : }
166 :
167 1 : ascii_strlower(lowercase);
168 :
169 1 : r = sd_bus_reply_method_return(m, "s", lowercase);
170 1 : if (r < 0) {
171 0 : log_error_errno(r, "Failed to send reply: %m");
172 0 : goto fail;
173 : }
174 25 : } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "ExitClient1")) {
175 :
176 1 : r = sd_bus_reply_method_return(m, NULL);
177 1 : if (r < 0) {
178 0 : log_error_errno(r, "Failed to send reply: %m");
179 0 : goto fail;
180 : }
181 :
182 1 : client1_gone = true;
183 24 : } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "ExitClient2")) {
184 :
185 1 : r = sd_bus_reply_method_return(m, NULL);
186 1 : if (r < 0) {
187 0 : log_error_errno(r, "Failed to send reply: %m");
188 0 : goto fail;
189 : }
190 :
191 1 : client2_gone = true;
192 23 : } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "Slow")) {
193 :
194 2 : sleep(1);
195 :
196 2 : r = sd_bus_reply_method_return(m, NULL);
197 2 : if (r < 0) {
198 0 : log_error_errno(r, "Failed to send reply: %m");
199 0 : goto fail;
200 : }
201 :
202 21 : } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "FileDescriptor")) {
203 : int fd;
204 : static const char x = 'X';
205 :
206 1 : r = sd_bus_message_read(m, "h", &fd);
207 1 : if (r < 0) {
208 0 : log_error_errno(r, "Failed to get parameter: %m");
209 0 : goto fail;
210 : }
211 :
212 1 : log_info("Received fd=%d", fd);
213 :
214 1 : if (write(fd, &x, 1) < 0) {
215 0 : log_error_errno(errno, "Failed to write to fd: %m");
216 0 : safe_close(fd);
217 0 : goto fail;
218 : }
219 :
220 1 : r = sd_bus_reply_method_return(m, NULL);
221 1 : if (r < 0) {
222 0 : log_error_errno(r, "Failed to send reply: %m");
223 0 : goto fail;
224 : }
225 :
226 20 : } else if (sd_bus_message_is_method_call(m, NULL, NULL)) {
227 :
228 0 : r = sd_bus_reply_method_error(
229 : m,
230 0 : &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_UNKNOWN_METHOD, "Unknown method."));
231 0 : if (r < 0) {
232 0 : log_error_errno(r, "Failed to send reply: %m");
233 0 : goto fail;
234 : }
235 : }
236 : }
237 :
238 1 : r = 0;
239 :
240 1 : fail:
241 1 : if (bus) {
242 1 : sd_bus_flush(bus);
243 1 : sd_bus_unref(bus);
244 : }
245 :
246 1 : return r;
247 : }
248 :
249 1 : static void* client1(void *p) {
250 1 : _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
251 1 : _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
252 1 : _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
253 : const char *hello;
254 : int r;
255 2 : _cleanup_close_pair_ int pp[2] = { -1, -1 };
256 : char x;
257 :
258 1 : r = sd_bus_open_user(&bus);
259 1 : if (r < 0) {
260 0 : log_error_errno(r, "Failed to connect to user bus: %m");
261 0 : goto finish;
262 : }
263 :
264 1 : r = sd_bus_call_method(
265 : bus,
266 : "org.freedesktop.systemd.test",
267 : "/",
268 : "org.freedesktop.systemd.test",
269 : "LowerCase",
270 : &error,
271 : &reply,
272 : "s",
273 : "HELLO");
274 1 : if (r < 0) {
275 0 : log_error_errno(r, "Failed to issue method call: %m");
276 0 : goto finish;
277 : }
278 :
279 1 : r = sd_bus_message_read(reply, "s", &hello);
280 1 : if (r < 0) {
281 0 : log_error_errno(r, "Failed to get string: %m");
282 0 : goto finish;
283 : }
284 :
285 1 : assert_se(streq(hello, "hello"));
286 :
287 1 : if (pipe2(pp, O_CLOEXEC|O_NONBLOCK) < 0) {
288 0 : log_error_errno(errno, "Failed to allocate pipe: %m");
289 0 : r = -errno;
290 0 : goto finish;
291 : }
292 :
293 1 : log_info("Sending fd=%d", pp[1]);
294 :
295 1 : r = sd_bus_call_method(
296 : bus,
297 : "org.freedesktop.systemd.test",
298 : "/",
299 : "org.freedesktop.systemd.test",
300 : "FileDescriptor",
301 : &error,
302 : NULL,
303 : "h",
304 : pp[1]);
305 1 : if (r < 0) {
306 0 : log_error_errno(r, "Failed to issue method call: %m");
307 0 : goto finish;
308 : }
309 :
310 1 : errno = 0;
311 1 : if (read(pp[0], &x, 1) <= 0) {
312 0 : log_error("Failed to read from pipe: %s", errno != 0 ? strerror_safe(errno) : "early read");
313 0 : goto finish;
314 : }
315 :
316 1 : r = 0;
317 :
318 1 : finish:
319 1 : if (bus) {
320 1 : _cleanup_(sd_bus_message_unrefp) sd_bus_message *q;
321 :
322 1 : r = sd_bus_message_new_method_call(
323 : bus,
324 : &q,
325 : "org.freedesktop.systemd.test",
326 : "/",
327 : "org.freedesktop.systemd.test",
328 : "ExitClient1");
329 1 : if (r < 0)
330 0 : log_error_errno(r, "Failed to allocate method call: %m");
331 : else
332 1 : sd_bus_send(bus, q, NULL);
333 :
334 : }
335 :
336 1 : return INT_TO_PTR(r);
337 : }
338 :
339 1 : static int quit_callback(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
340 1 : bool *x = userdata;
341 :
342 1 : log_error_errno(sd_bus_message_get_errno(m), "Quit callback: %m");
343 :
344 1 : *x = 1;
345 1 : return 1;
346 : }
347 :
348 1 : static void* client2(void *p) {
349 1 : _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
350 1 : _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
351 2 : _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
352 1 : bool quit = false;
353 : const char *mid;
354 : int r;
355 :
356 1 : r = sd_bus_open_user(&bus);
357 1 : if (r < 0) {
358 0 : log_error_errno(r, "Failed to connect to user bus: %m");
359 0 : goto finish;
360 : }
361 :
362 1 : r = sd_bus_message_new_method_call(
363 : bus,
364 : &m,
365 : "org.freedesktop.systemd.test",
366 : "/foo/bar/waldo/piep",
367 : "org.object.test",
368 : "Foobar");
369 1 : if (r < 0) {
370 0 : log_error_errno(r, "Failed to allocate method call: %m");
371 0 : goto finish;
372 : }
373 :
374 1 : r = sd_bus_send(bus, m, NULL);
375 1 : if (r < 0) {
376 0 : log_error("Failed to issue method call: %s", bus_error_message(&error, -r));
377 0 : goto finish;
378 : }
379 :
380 1 : m = sd_bus_message_unref(m);
381 :
382 1 : r = sd_bus_message_new_signal(
383 : bus,
384 : &m,
385 : "/foobar",
386 : "foo.bar",
387 : "Notify");
388 1 : if (r < 0) {
389 0 : log_error_errno(r, "Failed to allocate signal: %m");
390 0 : goto finish;
391 : }
392 :
393 1 : r = sd_bus_send(bus, m, NULL);
394 1 : if (r < 0) {
395 0 : log_error("Failed to issue signal: %s", bus_error_message(&error, -r));
396 0 : goto finish;
397 : }
398 :
399 1 : m = sd_bus_message_unref(m);
400 :
401 1 : r = sd_bus_message_new_method_call(
402 : bus,
403 : &m,
404 : "org.freedesktop.systemd.test",
405 : "/",
406 : "org.freedesktop.DBus.Peer",
407 : "GetMachineId");
408 1 : if (r < 0) {
409 0 : log_error_errno(r, "Failed to allocate method call: %m");
410 0 : goto finish;
411 : }
412 :
413 1 : r = sd_bus_call(bus, m, 0, &error, &reply);
414 1 : if (r < 0) {
415 0 : log_error("Failed to issue method call: %s", bus_error_message(&error, -r));
416 0 : goto finish;
417 : }
418 :
419 1 : r = sd_bus_message_read(reply, "s", &mid);
420 1 : if (r < 0) {
421 0 : log_error_errno(r, "Failed to parse machine ID: %m");
422 0 : goto finish;
423 : }
424 :
425 1 : log_info("Machine ID is %s.", mid);
426 :
427 1 : m = sd_bus_message_unref(m);
428 :
429 1 : r = sd_bus_message_new_method_call(
430 : bus,
431 : &m,
432 : "org.freedesktop.systemd.test",
433 : "/",
434 : "org.freedesktop.systemd.test",
435 : "Slow");
436 1 : if (r < 0) {
437 0 : log_error_errno(r, "Failed to allocate method call: %m");
438 0 : goto finish;
439 : }
440 :
441 1 : reply = sd_bus_message_unref(reply);
442 :
443 1 : r = sd_bus_call(bus, m, 200 * USEC_PER_MSEC, &error, &reply);
444 1 : if (r < 0)
445 1 : log_info("Failed to issue method call: %s", bus_error_message(&error, -r));
446 : else
447 0 : log_info("Slow call succeed.");
448 :
449 1 : m = sd_bus_message_unref(m);
450 :
451 1 : r = sd_bus_message_new_method_call(
452 : bus,
453 : &m,
454 : "org.freedesktop.systemd.test",
455 : "/",
456 : "org.freedesktop.systemd.test",
457 : "Slow");
458 1 : if (r < 0) {
459 0 : log_error_errno(r, "Failed to allocate method call: %m");
460 0 : goto finish;
461 : }
462 :
463 1 : r = sd_bus_call_async(bus, NULL, m, quit_callback, &quit, 200 * USEC_PER_MSEC);
464 1 : if (r < 0) {
465 0 : log_info("Failed to issue method call: %s", bus_error_message(&error, -r));
466 0 : goto finish;
467 : }
468 :
469 4 : while (!quit) {
470 3 : r = sd_bus_process(bus, NULL);
471 3 : if (r < 0) {
472 0 : log_error_errno(r, "Failed to process requests: %m");
473 0 : goto finish;
474 : }
475 3 : if (r == 0) {
476 1 : r = sd_bus_wait(bus, (uint64_t) -1);
477 1 : if (r < 0) {
478 0 : log_error_errno(r, "Failed to wait: %m");
479 0 : goto finish;
480 : }
481 : }
482 : }
483 :
484 1 : r = 0;
485 :
486 1 : finish:
487 1 : if (bus) {
488 1 : _cleanup_(sd_bus_message_unrefp) sd_bus_message *q;
489 :
490 1 : r = sd_bus_message_new_method_call(
491 : bus,
492 : &q,
493 : "org.freedesktop.systemd.test",
494 : "/",
495 : "org.freedesktop.systemd.test",
496 : "ExitClient2");
497 1 : if (r < 0) {
498 0 : log_error_errno(r, "Failed to allocate method call: %m");
499 0 : goto finish;
500 : }
501 :
502 1 : (void) sd_bus_send(bus, q, NULL);
503 : }
504 :
505 1 : return INT_TO_PTR(r);
506 : }
507 :
508 1 : int main(int argc, char *argv[]) {
509 : pthread_t c1, c2;
510 : sd_bus *bus;
511 : void *p;
512 : int q, r;
513 :
514 1 : test_setup_logging(LOG_INFO);
515 :
516 1 : r = server_init(&bus);
517 1 : if (r < 0)
518 0 : return log_tests_skipped("Failed to connect to bus");
519 :
520 1 : log_info("Initialized...");
521 :
522 1 : r = pthread_create(&c1, NULL, client1, bus);
523 1 : if (r != 0)
524 0 : return EXIT_FAILURE;
525 :
526 1 : r = pthread_create(&c2, NULL, client2, bus);
527 1 : if (r != 0)
528 0 : return EXIT_FAILURE;
529 :
530 1 : r = server(bus);
531 :
532 1 : q = pthread_join(c1, &p);
533 1 : if (q != 0)
534 0 : return EXIT_FAILURE;
535 1 : if (PTR_TO_INT(p) < 0)
536 0 : return EXIT_FAILURE;
537 :
538 1 : q = pthread_join(c2, &p);
539 1 : if (q != 0)
540 0 : return EXIT_FAILURE;
541 1 : if (PTR_TO_INT(p) < 0)
542 0 : return EXIT_FAILURE;
543 :
544 1 : if (r < 0)
545 0 : return EXIT_FAILURE;
546 :
547 1 : return EXIT_SUCCESS;
548 : }
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