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10#include <getopt.h>
11#include <stdio.h>
12#include <stdlib.h>
13#include <string.h>
14#include <errno.h>
15#include <unistd.h>
16#include <linux/kernel.h>
17#include <sys/types.h>
18#include <sys/socket.h>
19
20#include "timeout.h"
21#include "control.h"
22#include "util.h"
23
24static void test_stream_connection_reset(const struct test_opts *opts)
25{
26 union {
27 struct sockaddr sa;
28 struct sockaddr_vm svm;
29 } addr = {
30 .svm = {
31 .svm_family = AF_VSOCK,
32 .svm_port = 1234,
33 .svm_cid = opts->peer_cid,
34 },
35 };
36 int ret;
37 int fd;
38
39 fd = socket(AF_VSOCK, SOCK_STREAM, 0);
40
41 timeout_begin(TIMEOUT);
42 do {
43 ret = connect(fd, &addr.sa, sizeof(addr.svm));
44 timeout_check("connect");
45 } while (ret < 0 && errno == EINTR);
46 timeout_end();
47
48 if (ret != -1) {
49 fprintf(stderr, "expected connect(2) failure, got %d\n", ret);
50 exit(EXIT_FAILURE);
51 }
52 if (errno != ECONNRESET) {
53 fprintf(stderr, "unexpected connect(2) errno %d\n", errno);
54 exit(EXIT_FAILURE);
55 }
56
57 close(fd);
58}
59
60static void test_stream_bind_only_client(const struct test_opts *opts)
61{
62 union {
63 struct sockaddr sa;
64 struct sockaddr_vm svm;
65 } addr = {
66 .svm = {
67 .svm_family = AF_VSOCK,
68 .svm_port = 1234,
69 .svm_cid = opts->peer_cid,
70 },
71 };
72 int ret;
73 int fd;
74
75
76 control_expectln("BIND");
77
78 fd = socket(AF_VSOCK, SOCK_STREAM, 0);
79
80 timeout_begin(TIMEOUT);
81 do {
82 ret = connect(fd, &addr.sa, sizeof(addr.svm));
83 timeout_check("connect");
84 } while (ret < 0 && errno == EINTR);
85 timeout_end();
86
87 if (ret != -1) {
88 fprintf(stderr, "expected connect(2) failure, got %d\n", ret);
89 exit(EXIT_FAILURE);
90 }
91 if (errno != ECONNRESET) {
92 fprintf(stderr, "unexpected connect(2) errno %d\n", errno);
93 exit(EXIT_FAILURE);
94 }
95
96
97 control_writeln("DONE");
98
99 close(fd);
100}
101
102static void test_stream_bind_only_server(const struct test_opts *opts)
103{
104 union {
105 struct sockaddr sa;
106 struct sockaddr_vm svm;
107 } addr = {
108 .svm = {
109 .svm_family = AF_VSOCK,
110 .svm_port = 1234,
111 .svm_cid = VMADDR_CID_ANY,
112 },
113 };
114 int fd;
115
116 fd = socket(AF_VSOCK, SOCK_STREAM, 0);
117
118 if (bind(fd, &addr.sa, sizeof(addr.svm)) < 0) {
119 perror("bind");
120 exit(EXIT_FAILURE);
121 }
122
123
124 control_writeln("BIND");
125
126
127 control_expectln("DONE");
128
129 close(fd);
130}
131
132static void test_stream_client_close_client(const struct test_opts *opts)
133{
134 int fd;
135
136 fd = vsock_stream_connect(opts->peer_cid, 1234);
137 if (fd < 0) {
138 perror("connect");
139 exit(EXIT_FAILURE);
140 }
141
142 send_byte(fd, 1, 0);
143 close(fd);
144}
145
146static void test_stream_client_close_server(const struct test_opts *opts)
147{
148 int fd;
149
150 fd = vsock_stream_accept(VMADDR_CID_ANY, 1234, NULL);
151 if (fd < 0) {
152 perror("accept");
153 exit(EXIT_FAILURE);
154 }
155
156
157
158
159 vsock_wait_remote_close(fd);
160
161 send_byte(fd, -EPIPE, 0);
162 recv_byte(fd, 1, 0);
163 recv_byte(fd, 0, 0);
164 close(fd);
165}
166
167static void test_stream_server_close_client(const struct test_opts *opts)
168{
169 int fd;
170
171 fd = vsock_stream_connect(opts->peer_cid, 1234);
172 if (fd < 0) {
173 perror("connect");
174 exit(EXIT_FAILURE);
175 }
176
177
178
179
180 vsock_wait_remote_close(fd);
181
182 send_byte(fd, -EPIPE, 0);
183 recv_byte(fd, 1, 0);
184 recv_byte(fd, 0, 0);
185 close(fd);
186}
187
188static void test_stream_server_close_server(const struct test_opts *opts)
189{
190 int fd;
191
192 fd = vsock_stream_accept(VMADDR_CID_ANY, 1234, NULL);
193 if (fd < 0) {
194 perror("accept");
195 exit(EXIT_FAILURE);
196 }
197
198 send_byte(fd, 1, 0);
199 close(fd);
200}
201
202
203
204
205#define MULTICONN_NFDS 100
206
207static void test_stream_multiconn_client(const struct test_opts *opts)
208{
209 int fds[MULTICONN_NFDS];
210 int i;
211
212 for (i = 0; i < MULTICONN_NFDS; i++) {
213 fds[i] = vsock_stream_connect(opts->peer_cid, 1234);
214 if (fds[i] < 0) {
215 perror("connect");
216 exit(EXIT_FAILURE);
217 }
218 }
219
220 for (i = 0; i < MULTICONN_NFDS; i++) {
221 if (i % 2)
222 recv_byte(fds[i], 1, 0);
223 else
224 send_byte(fds[i], 1, 0);
225 }
226
227 for (i = 0; i < MULTICONN_NFDS; i++)
228 close(fds[i]);
229}
230
231static void test_stream_multiconn_server(const struct test_opts *opts)
232{
233 int fds[MULTICONN_NFDS];
234 int i;
235
236 for (i = 0; i < MULTICONN_NFDS; i++) {
237 fds[i] = vsock_stream_accept(VMADDR_CID_ANY, 1234, NULL);
238 if (fds[i] < 0) {
239 perror("accept");
240 exit(EXIT_FAILURE);
241 }
242 }
243
244 for (i = 0; i < MULTICONN_NFDS; i++) {
245 if (i % 2)
246 send_byte(fds[i], 1, 0);
247 else
248 recv_byte(fds[i], 1, 0);
249 }
250
251 for (i = 0; i < MULTICONN_NFDS; i++)
252 close(fds[i]);
253}
254
255static void test_stream_msg_peek_client(const struct test_opts *opts)
256{
257 int fd;
258
259 fd = vsock_stream_connect(opts->peer_cid, 1234);
260 if (fd < 0) {
261 perror("connect");
262 exit(EXIT_FAILURE);
263 }
264
265 send_byte(fd, 1, 0);
266 close(fd);
267}
268
269static void test_stream_msg_peek_server(const struct test_opts *opts)
270{
271 int fd;
272
273 fd = vsock_stream_accept(VMADDR_CID_ANY, 1234, NULL);
274 if (fd < 0) {
275 perror("accept");
276 exit(EXIT_FAILURE);
277 }
278
279 recv_byte(fd, 1, MSG_PEEK);
280 recv_byte(fd, 1, 0);
281 close(fd);
282}
283
284#define MESSAGES_CNT 7
285static void test_seqpacket_msg_bounds_client(const struct test_opts *opts)
286{
287 int fd;
288
289 fd = vsock_seqpacket_connect(opts->peer_cid, 1234);
290 if (fd < 0) {
291 perror("connect");
292 exit(EXIT_FAILURE);
293 }
294
295
296 for (int i = 0; i < MESSAGES_CNT; i++)
297 send_byte(fd, 1, 0);
298
299 control_writeln("SENDDONE");
300 close(fd);
301}
302
303static void test_seqpacket_msg_bounds_server(const struct test_opts *opts)
304{
305 int fd;
306 char buf[16];
307 struct msghdr msg = {0};
308 struct iovec iov = {0};
309
310 fd = vsock_seqpacket_accept(VMADDR_CID_ANY, 1234, NULL);
311 if (fd < 0) {
312 perror("accept");
313 exit(EXIT_FAILURE);
314 }
315
316 control_expectln("SENDDONE");
317 iov.iov_base = buf;
318 iov.iov_len = sizeof(buf);
319 msg.msg_iov = &iov;
320 msg.msg_iovlen = 1;
321
322 for (int i = 0; i < MESSAGES_CNT; i++) {
323 if (recvmsg(fd, &msg, 0) != 1) {
324 perror("message bound violated");
325 exit(EXIT_FAILURE);
326 }
327 }
328
329 close(fd);
330}
331
332#define MESSAGE_TRUNC_SZ 32
333static void test_seqpacket_msg_trunc_client(const struct test_opts *opts)
334{
335 int fd;
336 char buf[MESSAGE_TRUNC_SZ];
337
338 fd = vsock_seqpacket_connect(opts->peer_cid, 1234);
339 if (fd < 0) {
340 perror("connect");
341 exit(EXIT_FAILURE);
342 }
343
344 if (send(fd, buf, sizeof(buf), 0) != sizeof(buf)) {
345 perror("send failed");
346 exit(EXIT_FAILURE);
347 }
348
349 control_writeln("SENDDONE");
350 close(fd);
351}
352
353static void test_seqpacket_msg_trunc_server(const struct test_opts *opts)
354{
355 int fd;
356 char buf[MESSAGE_TRUNC_SZ / 2];
357 struct msghdr msg = {0};
358 struct iovec iov = {0};
359
360 fd = vsock_seqpacket_accept(VMADDR_CID_ANY, 1234, NULL);
361 if (fd < 0) {
362 perror("accept");
363 exit(EXIT_FAILURE);
364 }
365
366 control_expectln("SENDDONE");
367 iov.iov_base = buf;
368 iov.iov_len = sizeof(buf);
369 msg.msg_iov = &iov;
370 msg.msg_iovlen = 1;
371
372 ssize_t ret = recvmsg(fd, &msg, MSG_TRUNC);
373
374 if (ret != MESSAGE_TRUNC_SZ) {
375 printf("%zi\n", ret);
376 perror("MSG_TRUNC doesn't work");
377 exit(EXIT_FAILURE);
378 }
379
380 if (!(msg.msg_flags & MSG_TRUNC)) {
381 fprintf(stderr, "MSG_TRUNC expected\n");
382 exit(EXIT_FAILURE);
383 }
384
385 close(fd);
386}
387
388static struct test_case test_cases[] = {
389 {
390 .name = "SOCK_STREAM connection reset",
391 .run_client = test_stream_connection_reset,
392 },
393 {
394 .name = "SOCK_STREAM bind only",
395 .run_client = test_stream_bind_only_client,
396 .run_server = test_stream_bind_only_server,
397 },
398 {
399 .name = "SOCK_STREAM client close",
400 .run_client = test_stream_client_close_client,
401 .run_server = test_stream_client_close_server,
402 },
403 {
404 .name = "SOCK_STREAM server close",
405 .run_client = test_stream_server_close_client,
406 .run_server = test_stream_server_close_server,
407 },
408 {
409 .name = "SOCK_STREAM multiple connections",
410 .run_client = test_stream_multiconn_client,
411 .run_server = test_stream_multiconn_server,
412 },
413 {
414 .name = "SOCK_STREAM MSG_PEEK",
415 .run_client = test_stream_msg_peek_client,
416 .run_server = test_stream_msg_peek_server,
417 },
418 {
419 .name = "SOCK_SEQPACKET msg bounds",
420 .run_client = test_seqpacket_msg_bounds_client,
421 .run_server = test_seqpacket_msg_bounds_server,
422 },
423 {
424 .name = "SOCK_SEQPACKET MSG_TRUNC flag",
425 .run_client = test_seqpacket_msg_trunc_client,
426 .run_server = test_seqpacket_msg_trunc_server,
427 },
428 {},
429};
430
431static const char optstring[] = "";
432static const struct option longopts[] = {
433 {
434 .name = "control-host",
435 .has_arg = required_argument,
436 .val = 'H',
437 },
438 {
439 .name = "control-port",
440 .has_arg = required_argument,
441 .val = 'P',
442 },
443 {
444 .name = "mode",
445 .has_arg = required_argument,
446 .val = 'm',
447 },
448 {
449 .name = "peer-cid",
450 .has_arg = required_argument,
451 .val = 'p',
452 },
453 {
454 .name = "list",
455 .has_arg = no_argument,
456 .val = 'l',
457 },
458 {
459 .name = "skip",
460 .has_arg = required_argument,
461 .val = 's',
462 },
463 {
464 .name = "help",
465 .has_arg = no_argument,
466 .val = '?',
467 },
468 {},
469};
470
471static void usage(void)
472{
473 fprintf(stderr, "Usage: vsock_test [--help] [--control-host=<host>] --control-port=<port> --mode=client|server --peer-cid=<cid> [--list] [--skip=<test_id>]\n"
474 "\n"
475 " Server: vsock_test --control-port=1234 --mode=server --peer-cid=3\n"
476 " Client: vsock_test --control-host=192.168.0.1 --control-port=1234 --mode=client --peer-cid=2\n"
477 "\n"
478 "Run vsock.ko tests. Must be launched in both guest\n"
479 "and host. One side must use --mode=client and\n"
480 "the other side must use --mode=server.\n"
481 "\n"
482 "A TCP control socket connection is used to coordinate tests\n"
483 "between the client and the server. The server requires a\n"
484 "listen address and the client requires an address to\n"
485 "connect to.\n"
486 "\n"
487 "The CID of the other side must be given with --peer-cid=<cid>.\n"
488 "\n"
489 "Options:\n"
490 " --help This help message\n"
491 " --control-host <host> Server IP address to connect to\n"
492 " --control-port <port> Server port to listen on/connect to\n"
493 " --mode client|server Server or client mode\n"
494 " --peer-cid <cid> CID of the other side\n"
495 " --list List of tests that will be executed\n"
496 " --skip <test_id> Test ID to skip;\n"
497 " use multiple --skip options to skip more tests\n"
498 );
499 exit(EXIT_FAILURE);
500}
501
502int main(int argc, char **argv)
503{
504 const char *control_host = NULL;
505 const char *control_port = NULL;
506 struct test_opts opts = {
507 .mode = TEST_MODE_UNSET,
508 .peer_cid = VMADDR_CID_ANY,
509 };
510
511 init_signals();
512
513 for (;;) {
514 int opt = getopt_long(argc, argv, optstring, longopts, NULL);
515
516 if (opt == -1)
517 break;
518
519 switch (opt) {
520 case 'H':
521 control_host = optarg;
522 break;
523 case 'm':
524 if (strcmp(optarg, "client") == 0)
525 opts.mode = TEST_MODE_CLIENT;
526 else if (strcmp(optarg, "server") == 0)
527 opts.mode = TEST_MODE_SERVER;
528 else {
529 fprintf(stderr, "--mode must be \"client\" or \"server\"\n");
530 return EXIT_FAILURE;
531 }
532 break;
533 case 'p':
534 opts.peer_cid = parse_cid(optarg);
535 break;
536 case 'P':
537 control_port = optarg;
538 break;
539 case 'l':
540 list_tests(test_cases);
541 break;
542 case 's':
543 skip_test(test_cases, ARRAY_SIZE(test_cases) - 1,
544 optarg);
545 break;
546 case '?':
547 default:
548 usage();
549 }
550 }
551
552 if (!control_port)
553 usage();
554 if (opts.mode == TEST_MODE_UNSET)
555 usage();
556 if (opts.peer_cid == VMADDR_CID_ANY)
557 usage();
558
559 if (!control_host) {
560 if (opts.mode != TEST_MODE_SERVER)
561 usage();
562 control_host = "0.0.0.0";
563 }
564
565 control_init(control_host, control_port,
566 opts.mode == TEST_MODE_SERVER);
567
568 run_tests(test_cases, &opts);
569
570 control_cleanup();
571 return EXIT_SUCCESS;
572}
573
