1 /*-
2  * Copyright (c) 2014 Spectra Logic Corporation. All rights reserved.
3  * Redistribution and use in source and binary forms, with or without
4  * modification, are permitted provided that the following conditions
5  * are met:
6  * 1. Redistributions of source code must retain the above copyright
7  *    notice, this list of conditions and the following disclaimer.
8  * 2. Redistributions in binary form must reproduce the above copyright
9  *    notice, this list of conditions and the following disclaimer in the
10  *    documentation and/or other materials provided with the distribution.
11  *
12  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
13  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
14  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
15  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
16  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
17  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
18  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
19  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
20  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
21  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
22  * SUCH DAMAGE.
23  */
24 
25 #include <sys/cdefs.h>
26 __FBSDID("$FreeBSD$");
27 
28 #include <errno.h>
29 #include <fcntl.h>
30 #include <pthread.h>
31 #include <signal.h>
32 #include <sys/socket.h>
33 #include <sys/un.h>
34 
35 #include <stdio.h>
36 
37 #include <atf-c.h>
38 
39 /*
40  * Helper functions
41  */
42 
43 #define MIN(x, y)	((x) < (y) ? (x) : (y))
44 #define MAX(x, y)	((x) > (y) ? (x) : (y))
45 
46 static void
47 do_socketpair(int *sv)
48 {
49 	int s;
50 
51 	s = socketpair(PF_LOCAL, SOCK_SEQPACKET, 0, sv);
52 	ATF_REQUIRE_EQ(0, s);
53 	ATF_REQUIRE(sv[0] >= 0);
54 	ATF_REQUIRE(sv[1] >= 0);
55 	ATF_REQUIRE(sv[0] != sv[1]);
56 }
57 
58 static void
59 do_socketpair_nonblocking(int *sv)
60 {
61 	int s;
62 
63 	s = socketpair(PF_LOCAL, SOCK_SEQPACKET, 0, sv);
64 	ATF_REQUIRE_EQ(0, s);
65 	ATF_REQUIRE(sv[0] >= 0);
66 	ATF_REQUIRE(sv[1] >= 0);
67 	ATF_REQUIRE(sv[0] != sv[1]);
68 	ATF_REQUIRE(-1 != fcntl(sv[0], F_SETFL, O_NONBLOCK));
69 	ATF_REQUIRE(-1 != fcntl(sv[1], F_SETFL, O_NONBLOCK));
70 }
71 
72 /*
73  * Returns a pair of sockets made the hard way: bind, listen, connect & accept
74  * @return	const char* The path to the socket
75  */
76 static const char*
77 mk_pair_of_sockets(int *sv)
78 {
79 	struct sockaddr_un sun;
80 	/* ATF's isolation mechanisms will guarantee uniqueness of this file */
81 	const char *path = "sock";
82 	int s, err, s2, s1;
83 
84 	s = socket(PF_LOCAL, SOCK_SEQPACKET, 0);
85 	ATF_REQUIRE(s >= 0);
86 
87 	bzero(&sun, sizeof(sun));
88 	sun.sun_family = AF_LOCAL;
89 	sun.sun_len = sizeof(sun);
90 	strlcpy(sun.sun_path, path, sizeof(sun.sun_path));
91 	err = bind(s, (struct sockaddr *)&sun, sizeof(sun));
92 	err = listen(s, -1);
93 	ATF_CHECK_EQ(0, err);
94 
95 	/* Create the other socket */
96 	s2 = socket(PF_LOCAL, SOCK_SEQPACKET, 0);
97 	ATF_REQUIRE(s2 >= 0);
98 	err = connect(s2, (struct sockaddr*)&sun, sizeof(sun));
99 	if (err != 0) {
100 		perror("connect");
101 		atf_tc_fail("connect(2) failed");
102 	}
103 
104 	/* Accept it */
105 	s1 = accept(s, NULL, NULL);
106 	if (s1 == -1) {
107 		perror("accept");
108 		atf_tc_fail("accept(2) failed");
109 	}
110 
111 	sv[0] = s1;
112 	sv[1] = s2;
113 
114 	close(s);
115 
116 	return (path);
117 }
118 
119 static volatile sig_atomic_t got_sigpipe = 0;
120 static void
121 shutdown_send_sigpipe_handler(int __unused x)
122 {
123 	got_sigpipe = 1;
124 }
125 
126 /*
127  * Parameterized test function bodies
128  */
129 static void
130 test_eagain(size_t sndbufsize, size_t rcvbufsize)
131 {
132 	int i;
133 	int sv[2];
134 	const size_t totalsize = (sndbufsize + rcvbufsize) * 2;
135 	const size_t pktsize = MIN(sndbufsize, rcvbufsize) / 4;
136 	const int numpkts = totalsize / pktsize;
137 	char sndbuf[pktsize];
138 	ssize_t ssize;
139 
140 	/* setup the socket pair */
141 	do_socketpair_nonblocking(sv);
142 	/* Setup the buffers */
143 	ATF_REQUIRE_EQ(0, setsockopt(sv[0], SOL_SOCKET, SO_SNDBUF, &sndbufsize,
144 	    sizeof(sndbufsize)));
145 	ATF_REQUIRE_EQ(0, setsockopt(sv[1], SOL_SOCKET, SO_RCVBUF, &rcvbufsize,
146 	    sizeof(rcvbufsize)));
147 
148 	bzero(sndbuf, pktsize);
149 	/* Send data until we get EAGAIN */
150 	for(i=0; i < numpkts; i++) {
151 		ssize = send(sv[0], sndbuf, pktsize, MSG_EOR);
152 		if (ssize == -1) {
153 			if (errno == EAGAIN) {
154 				close(sv[0]);
155 				close(sv[1]);
156 				atf_tc_pass();
157 			}
158 			else {
159 				perror("send");
160 				atf_tc_fail("send returned < 0 but not EAGAIN");
161 			}
162 		}
163 	}
164 	atf_tc_fail("Never got EAGAIN");
165 }
166 
167 static void
168 test_sendrecv_symmetric_buffers(size_t bufsize, int blocking) {
169 	int s;
170 	int sv[2];
171 	const ssize_t pktsize = bufsize / 2;
172 	char sndbuf[pktsize];
173 	char recv_buf[pktsize];
174 	ssize_t ssize, rsize;
175 
176 	/* setup the socket pair */
177 	if (blocking)
178 		do_socketpair(sv);
179 	else
180 		do_socketpair_nonblocking(sv);
181 
182 	/* Setup the buffers */
183 	s = setsockopt(sv[0], SOL_SOCKET, SO_SNDBUF, &bufsize, sizeof(bufsize));
184 	ATF_REQUIRE_EQ(0, s);
185 	s = setsockopt(sv[1], SOL_SOCKET, SO_RCVBUF, &bufsize, sizeof(bufsize));
186 	ATF_REQUIRE_EQ(0, s);
187 
188 	/* Fill the send buffer */
189 	bzero(sndbuf, pktsize);
190 
191 	/* send and receive the packet */
192 	ssize = send(sv[0], sndbuf, pktsize, MSG_EOR);
193 	if (ssize < 0) {
194 		perror("send");
195 		atf_tc_fail("send returned < 0");
196 	}
197 	ATF_CHECK_EQ_MSG(pktsize, ssize, "expected %zd=send(...) but got %zd",
198 	    pktsize, ssize);
199 
200 	rsize = recv(sv[1], recv_buf, pktsize, MSG_WAITALL);
201 	if (rsize < 0) {
202 		perror("recv");
203 		atf_tc_fail("recv returned < 0");
204 	}
205 	ATF_CHECK_EQ_MSG(pktsize, rsize, "expected %zd=send(...) but got %zd",
206 	    pktsize, rsize);
207 	close(sv[0]);
208 	close(sv[1]);
209 }
210 
211 static void
212 test_pipe_simulator(size_t sndbufsize, size_t rcvbufsize)
213 {
214 	int num_sent, num_received;
215 	int sv[2];
216 	const ssize_t pktsize = MIN(sndbufsize, rcvbufsize) / 4;
217 	int numpkts;
218 	char sndbuf[pktsize];
219 	char rcvbuf[pktsize];
220 	char comparebuf[pktsize];
221 	ssize_t ssize, rsize;
222 	bool currently_sending = true;
223 
224 	/* setup the socket pair */
225 	do_socketpair_nonblocking(sv);
226 	/* Setup the buffers */
227 	ATF_REQUIRE_EQ(0, setsockopt(sv[0], SOL_SOCKET, SO_SNDBUF, &sndbufsize,
228 	    sizeof(sndbufsize)));
229 	ATF_REQUIRE_EQ(0, setsockopt(sv[1], SOL_SOCKET, SO_RCVBUF, &rcvbufsize,
230 	    sizeof(rcvbufsize)));
231 
232 	/* Send a total amount of data comfortably greater than the buffers */
233 	numpkts = MAX(sndbufsize, rcvbufsize) * 8 / pktsize;
234 	for (num_sent=0, num_received=0;
235 	     num_sent < numpkts || num_received < numpkts; ) {
236 		if (currently_sending && num_sent < numpkts) {
237 			/* The simulated sending process */
238 			/* fill the buffer */
239 			memset(sndbuf, num_sent, pktsize);
240 			ssize = send(sv[0], sndbuf, pktsize, MSG_EOR);
241 			if (ssize < 0) {
242 				/*
243 				 * XXX: This is bug-compatible with the kernel.
244 				 * The kernel returns EMSGSIZE when it should
245 				 * return EAGAIN
246 				 */
247 				if (errno == EAGAIN || errno == EMSGSIZE)
248 					currently_sending = false;
249 				else {
250 					perror("send");
251 					atf_tc_fail("send failed");
252 				}
253 			} else  {
254 				ATF_CHECK_EQ_MSG(pktsize, ssize,
255 				    "expected %zd=send(...) but got %zd",
256 				    pktsize, ssize);
257 				num_sent++;
258 			}
259 		} else {
260 			/* The simulated receiving process */
261 			rsize = recv(sv[1], rcvbuf, pktsize, MSG_WAITALL);
262 			if (rsize < 0) {
263 				if (errno == EAGAIN) {
264 					currently_sending = true;
265 					ATF_REQUIRE_MSG(num_sent < numpkts,
266 					    "Packets were lost!");
267 				}
268 				else {
269 					perror("recv");
270 					atf_tc_fail("recv failed");
271 				}
272 			} else  {
273 				ATF_CHECK_EQ_MSG(pktsize, rsize,
274 				    "expected %zd=recv(...) but got %zd",
275 				    pktsize, rsize);
276 				memset(comparebuf, num_received, pktsize);
277 				ATF_CHECK_EQ_MSG(0, memcmp(comparebuf, rcvbuf,
278 				    			   pktsize),
279 				    "Received data miscompare");
280 				num_received++;
281 			}
282 		}
283 	}
284 	close(sv[0]);
285 	close(sv[1]);
286 }
287 
288 typedef struct {
289 	ssize_t	pktsize;
290 	int	numpkts;
291 	int	so;
292 } test_pipe_thread_data_t;
293 
294 static void*
295 test_pipe_writer(void* args)
296 {
297 	test_pipe_thread_data_t* td = args;
298 	char sndbuf[td->pktsize];
299 	ssize_t ssize;
300 	int i;
301 
302 	for(i=0; i < td->numpkts; i++) {
303 			memset(sndbuf, i, td->pktsize);
304 			ssize = send(td->so, sndbuf, td->pktsize, MSG_EOR);
305 			if (ssize < 0) {
306 				perror("send");
307 				atf_tc_fail("send returned < 0");
308 			}
309 			ATF_CHECK_EQ_MSG(td->pktsize, ssize,
310 			    		 "expected %zd=send(...) but got %zd",
311 			    		  td->pktsize, ssize);
312 	}
313 	return (0);
314 }
315 
316 static void*
317 test_pipe_reader(void* args)
318 {
319 	test_pipe_thread_data_t* td = args;
320 	char rcvbuf[td->pktsize];
321 	char comparebuf[td->pktsize];
322 	ssize_t rsize;
323 	int i, d;
324 
325 	for(i=0; i < td->numpkts; i++) {
326 		memset(comparebuf, i, td->pktsize);
327 		rsize = recv(td->so, rcvbuf, td->pktsize, MSG_WAITALL);
328 		if (rsize < 0) {
329 			perror("recv");
330 			atf_tc_fail("recv returned < 0");
331 		}
332 		ATF_CHECK_EQ_MSG(td->pktsize, rsize,
333 		    		 "expected %zd=send(...) but got %zd",
334 				 td->pktsize, rsize);
335 		d = memcmp(comparebuf, rcvbuf, td->pktsize);
336 		ATF_CHECK_EQ_MSG(0, d,
337 		    		 "Received data miscompare on packet %d", i);
338 	}
339 	return (0);
340 }
341 
342 
343 static void
344 test_pipe(size_t sndbufsize, size_t rcvbufsize)
345 {
346 	test_pipe_thread_data_t writer_data, reader_data;
347 	pthread_t writer, reader;
348 	int sv[2];
349 	const size_t pktsize = MIN(sndbufsize, rcvbufsize) / 4;
350 	int numpkts;
351 
352 	/* setup the socket pair */
353 	do_socketpair(sv);
354 	/* Setup the buffers */
355 	ATF_REQUIRE_EQ(0, setsockopt(sv[0], SOL_SOCKET, SO_SNDBUF, &sndbufsize,
356 	    sizeof(sndbufsize)));
357 	ATF_REQUIRE_EQ(0, setsockopt(sv[1], SOL_SOCKET, SO_RCVBUF, &rcvbufsize,
358 	    sizeof(rcvbufsize)));
359 
360 	/* Send a total amount of data comfortably greater than the buffers */
361 	numpkts = MAX(sndbufsize, rcvbufsize) * 8 / pktsize;
362 
363 	/* Start the child threads */
364 	writer_data.pktsize = pktsize;
365 	writer_data.numpkts = numpkts;
366 	writer_data.so = sv[0];
367 	reader_data.pktsize = pktsize;
368 	reader_data.numpkts = numpkts;
369 	reader_data.so = sv[1];
370 	ATF_REQUIRE_EQ(0, pthread_create(&writer, NULL, test_pipe_writer,
371 	    				 (void*)&writer_data));
372 	/*
373 	 * Give the writer time to start writing, and hopefully block, before
374 	 * starting the reader.  This increases the likelihood of the test case
375 	 * failing due to PR kern/185812
376 	 */
377 	usleep(1000);
378 	ATF_REQUIRE_EQ(0, pthread_create(&reader, NULL, test_pipe_reader,
379 	    				 (void*)&reader_data));
380 
381 	/* Join the children */
382 	ATF_REQUIRE_EQ(0, pthread_join(writer, NULL));
383 	ATF_REQUIRE_EQ(0, pthread_join(reader, NULL));
384 	close(sv[0]);
385 	close(sv[1]);
386 }
387 
388 
389 /*
390  * Test Cases
391  */
392 
393 /* Create a SEQPACKET socket */
394 ATF_TC_WITHOUT_HEAD(create_socket);
395 ATF_TC_BODY(create_socket, tc)
396 {
397 	int s;
398 
399 	s = socket(PF_LOCAL, SOCK_SEQPACKET, 0);
400 	ATF_REQUIRE(s >= 0);
401 	close(s);
402 }
403 
404 /* Create SEQPACKET sockets using socketpair(2) */
405 ATF_TC_WITHOUT_HEAD(create_socketpair);
406 ATF_TC_BODY(create_socketpair, tc)
407 {
408 	int sv[2];
409 	int s;
410 
411 	s = socketpair(PF_LOCAL, SOCK_SEQPACKET, 0, sv);
412 	ATF_CHECK_EQ(0, s);
413 	ATF_CHECK(sv[0] >= 0);
414 	ATF_CHECK(sv[1] >= 0);
415 	ATF_CHECK(sv[0] != sv[1]);
416 	close(sv[0]);
417 	close(sv[1]);
418 }
419 
420 /* Call listen(2) without first calling bind(2).  It should fail */
421 ATF_TC_WITHOUT_HEAD(listen_unbound);
422 ATF_TC_BODY(listen_unbound, tc)
423 {
424 	int s, r;
425 
426 	s = socket(PF_LOCAL, SOCK_SEQPACKET, 0);
427 	ATF_REQUIRE(s > 0);
428 	r = listen(s, -1);
429 	/* expect listen to fail since we haven't called bind(2) */
430 	ATF_CHECK(r != 0);
431 	close(s);
432 }
433 
434 /* Bind the socket to a file */
435 ATF_TC_WITHOUT_HEAD(bind);
436 ATF_TC_BODY(bind, tc)
437 {
438 	struct sockaddr_un sun;
439 	/* ATF's isolation mechanisms will guarantee uniqueness of this file */
440 	const char *path = "sock";
441 	int s, r;
442 
443 	s = socket(PF_LOCAL, SOCK_SEQPACKET, 0);
444 	ATF_REQUIRE(s >= 0);
445 
446 	bzero(&sun, sizeof(sun));
447 	sun.sun_family = AF_LOCAL;
448 	sun.sun_len = sizeof(sun);
449 	strlcpy(sun.sun_path, path, sizeof(sun.sun_path));
450 	r = bind(s, (struct sockaddr *)&sun, sizeof(sun));
451 	ATF_CHECK_EQ(0, r);
452 	close(s);
453 }
454 
455 /* listen(2) a socket that is already bound(2) should succeed */
456 ATF_TC_WITHOUT_HEAD(listen_bound);
457 ATF_TC_BODY(listen_bound, tc)
458 {
459 	struct sockaddr_un sun;
460 	/* ATF's isolation mechanisms will guarantee uniqueness of this file */
461 	const char *path = "sock";
462 	int s, r, l;
463 
464 	s = socket(PF_LOCAL, SOCK_SEQPACKET, 0);
465 	ATF_REQUIRE(s >= 0);
466 
467 	bzero(&sun, sizeof(sun));
468 	sun.sun_family = AF_LOCAL;
469 	sun.sun_len = sizeof(sun);
470 	strlcpy(sun.sun_path, path, sizeof(sun.sun_path));
471 	r = bind(s, (struct sockaddr *)&sun, sizeof(sun));
472 	l = listen(s, -1);
473 	ATF_CHECK_EQ(0, r);
474 	ATF_CHECK_EQ(0, l);
475 	close(s);
476 }
477 
478 /* connect(2) can make a connection */
479 ATF_TC_WITHOUT_HEAD(connect);
480 ATF_TC_BODY(connect, tc)
481 {
482 	struct sockaddr_un sun;
483 	/* ATF's isolation mechanisms will guarantee uniqueness of this file */
484 	const char *path = "sock";
485 	int s, r, err, l, s2;
486 
487 	s = socket(PF_LOCAL, SOCK_SEQPACKET, 0);
488 	ATF_REQUIRE(s >= 0);
489 
490 	bzero(&sun, sizeof(sun));
491 	sun.sun_family = AF_LOCAL;
492 	sun.sun_len = sizeof(sun);
493 	strlcpy(sun.sun_path, path, sizeof(sun.sun_path));
494 	r = bind(s, (struct sockaddr *)&sun, sizeof(sun));
495 	l = listen(s, -1);
496 	ATF_CHECK_EQ(0, r);
497 	ATF_CHECK_EQ(0, l);
498 
499 	/* Create the other socket */
500 	s2 = socket(PF_LOCAL, SOCK_SEQPACKET, 0);
501 	ATF_REQUIRE(s2 >= 0);
502 	err = connect(s2, (struct sockaddr*)&sun, sizeof(sun));
503 	if (err != 0) {
504 		perror("connect");
505 		atf_tc_fail("connect(2) failed");
506 	}
507 	close(s);
508 	close(s2);
509 }
510 
511 /* accept(2) can receive a connection */
512 ATF_TC_WITHOUT_HEAD(accept);
513 ATF_TC_BODY(accept, tc)
514 {
515 	int sv[2];
516 
517 	mk_pair_of_sockets(sv);
518 	close(sv[0]);
519 	close(sv[1]);
520 }
521 
522 
523 /* Set O_NONBLOCK on the socket */
524 ATF_TC_WITHOUT_HEAD(fcntl_nonblock);
525 ATF_TC_BODY(fcntl_nonblock, tc)
526 {
527 	int s;
528 
529 	s = socket(PF_LOCAL, SOCK_SEQPACKET, 0);
530 	ATF_REQUIRE(s >= 0);
531 	if (fcntl(s, F_SETFL, O_NONBLOCK) == -1) {
532 		perror("fcntl");
533 		atf_tc_fail("fcntl failed");
534 	}
535 	close(s);
536 }
537 
538 /* Resize the send and receive buffers */
539 ATF_TC_WITHOUT_HEAD(resize_buffers);
540 ATF_TC_BODY(resize_buffers, tc)
541 {
542 	int s;
543 	int sndbuf = 12345;
544 	int rcvbuf = 23456;
545 	int xs, xr;
546 	socklen_t sl = sizeof(xs);
547 
548 	s = socket(PF_LOCAL, SOCK_SEQPACKET, 0);
549 	ATF_REQUIRE(s >= 0);
550 
551 	printf("                       Socket Buffer Sizes\n");
552 	printf("                              | SNDBUF  | RCVBUF  |\n");
553 	ATF_CHECK_EQ(0, getsockopt(s, SOL_SOCKET, SO_SNDBUF, &xs, &sl));
554 	ATF_CHECK_EQ(0, getsockopt(s, SOL_SOCKET, SO_RCVBUF, &xr, &sl));
555 	printf("Default                       | %7d | %7d |\n", xs, xr);
556 
557 	if (setsockopt(s, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf)) != 0){
558 		perror("setsockopt");
559 		atf_tc_fail("setsockopt(SO_SNDBUF) failed");
560 	}
561 	ATF_CHECK_EQ(0, getsockopt(s, SOL_SOCKET, SO_SNDBUF, &xs, &sl));
562 	ATF_CHECK_EQ(0, getsockopt(s, SOL_SOCKET, SO_RCVBUF, &xr, &sl));
563 	printf("After changing SNDBUF         | %7d | %7d |\n", xs, xr);
564 
565 	if (setsockopt(s, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf)) != 0){
566 		perror("setsockopt");
567 		atf_tc_fail("setsockopt(SO_RCVBUF) failed");
568 	}
569 	ATF_CHECK_EQ(0, getsockopt(s, SOL_SOCKET, SO_SNDBUF, &xs, &sl));
570 	ATF_CHECK_EQ(0, getsockopt(s, SOL_SOCKET, SO_RCVBUF, &xr, &sl));
571 	printf("After changing RCVBUF         | %7d | %7d |\n", xs, xr);
572 	close(s);
573 }
574 
575 /*
576  * Resize the send and receive buffers of a connected socketpair
577  * Print some useful debugging info too
578  */
579 ATF_TC_WITHOUT_HEAD(resize_connected_buffers);
580 ATF_TC_BODY(resize_connected_buffers, tc)
581 {
582 	int sv[2];
583 	int sndbuf = 12345;
584 	int rcvbuf = 23456;
585 	int err;
586 	int ls, lr, rs, rr;
587 	socklen_t sl = sizeof(ls);
588 
589 	/* setup the socket pair */
590 	do_socketpair(sv);
591 
592 	printf("                       Socket Buffer Sizes\n");
593 	printf("                              | Left Socket       | Right Socket      |\n");
594 	printf("                              | SNDBUF  | RCVBUF  | SNDBUF  | RCVBUF  |\n");
595 	ATF_CHECK_EQ(0, getsockopt(sv[0], SOL_SOCKET, SO_SNDBUF, &ls, &sl));
596 	ATF_CHECK_EQ(0, getsockopt(sv[0], SOL_SOCKET, SO_RCVBUF, &lr, &sl));
597 	ATF_CHECK_EQ(0, getsockopt(sv[1], SOL_SOCKET, SO_SNDBUF, &rs, &sl));
598 	ATF_CHECK_EQ(0, getsockopt(sv[1], SOL_SOCKET, SO_RCVBUF, &rr, &sl));
599 	printf("Default                       | %7d | %7d | %7d | %7d |\n",
600 	    ls, lr, rs, rr);
601 
602 	/* Update one side's send buffer */
603 	err = setsockopt(sv[0], SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof(sndbuf));
604 	if (err != 0){
605 		perror("setsockopt");
606 		atf_tc_fail("setsockopt(SO_SNDBUF) failed");
607 	}
608 
609 	ATF_CHECK_EQ(0, getsockopt(sv[0], SOL_SOCKET, SO_SNDBUF, &ls, &sl));
610 	ATF_CHECK_EQ(0, getsockopt(sv[0], SOL_SOCKET, SO_RCVBUF, &lr, &sl));
611 	ATF_CHECK_EQ(0, getsockopt(sv[1], SOL_SOCKET, SO_SNDBUF, &rs, &sl));
612 	ATF_CHECK_EQ(0, getsockopt(sv[1], SOL_SOCKET, SO_RCVBUF, &rr, &sl));
613 	printf("After changing Left's SNDBUF  | %7d | %7d | %7d | %7d |\n",
614 	    ls, lr, rs, rr);
615 
616 	/* Update the same side's receive buffer */
617 	err = setsockopt(sv[0], SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf));
618 	if (err != 0){
619 		perror("setsockopt");
620 		atf_tc_fail("setsockopt(SO_RCVBUF) failed");
621 	}
622 
623 	ATF_CHECK_EQ(0, getsockopt(sv[0], SOL_SOCKET, SO_SNDBUF, &ls, &sl));
624 	ATF_CHECK_EQ(0, getsockopt(sv[0], SOL_SOCKET, SO_RCVBUF, &lr, &sl));
625 	ATF_CHECK_EQ(0, getsockopt(sv[1], SOL_SOCKET, SO_SNDBUF, &rs, &sl));
626 	ATF_CHECK_EQ(0, getsockopt(sv[1], SOL_SOCKET, SO_RCVBUF, &rr, &sl));
627 	printf("After changing Left's RCVBUF  | %7d | %7d | %7d | %7d |\n",
628 	    ls, lr, rs, rr);
629 	close(sv[0]);
630 	close(sv[1]);
631 }
632 
633 
634 /* send(2) and recv(2) a single short record */
635 ATF_TC_WITHOUT_HEAD(send_recv);
636 ATF_TC_BODY(send_recv, tc)
637 {
638 	int sv[2];
639 	const int bufsize = 64;
640 	const char *data = "data";
641 	char recv_buf[bufsize];
642 	ssize_t datalen;
643 	ssize_t ssize, rsize;
644 
645 	/* setup the socket pair */
646 	do_socketpair(sv);
647 
648 	/* send and receive a small packet */
649 	datalen = strlen(data) + 1;	/* +1 for the null */
650 	ssize = send(sv[0], data, datalen, MSG_EOR);
651 	if (ssize < 0) {
652 		perror("send");
653 		atf_tc_fail("send returned < 0");
654 	}
655 	ATF_CHECK_EQ_MSG(datalen, ssize, "expected %zd=send(...) but got %zd",
656 	    datalen, ssize);
657 
658 	rsize = recv(sv[1], recv_buf, bufsize, MSG_WAITALL);
659 	ATF_CHECK_EQ(datalen, rsize);
660 	close(sv[0]);
661 	close(sv[1]);
662 }
663 
664 /* sendto(2) and recvfrom(2) a single short record
665  * According to The Open Group Base Specifications Issue 6 IEEE Std 1003.1, 2004
666  * Edition, sendto(2) is exactly the same as send(2) on a connection-mode socket
667  *
668  * According to the same spec, not all protocols are required to provide the
669  * source addres in recvfrom(2).
670  */
671 ATF_TC_WITHOUT_HEAD(sendto_recvfrom);
672 ATF_TC_BODY(sendto_recvfrom, tc)
673 {
674 	const char* path;
675 	struct sockaddr_storage from;
676 	int sv[2];
677 	const int bufsize = 64;
678 	const char *data = "data";
679 	char recv_buf[bufsize];
680 	ssize_t datalen;
681 	ssize_t ssize, rsize;
682 	socklen_t fromlen;
683 
684 	/* setup the socket pair */
685 	path = mk_pair_of_sockets(sv);
686 
687 	/* send and receive a small packet */
688 	datalen = strlen(data) + 1;	/* +1 for the null */
689 	ssize = sendto(sv[0], data, datalen, MSG_EOR, NULL, 0);
690 	if (ssize < 0) {
691 		perror("send");
692 		atf_tc_fail("send returned < 0");
693 	}
694 	ATF_CHECK_EQ_MSG(datalen, ssize, "expected %zd=send(...) but got %zd",
695 	    datalen, ssize);
696 
697 	fromlen = sizeof(from);
698 	rsize = recvfrom(sv[1], recv_buf, bufsize, MSG_WAITALL,
699 	    (struct sockaddr*)&from, &fromlen);
700 	if (ssize < 0) {
701 		perror("recvfrom");
702 		atf_tc_fail("recvfrom returned < 0");
703 	}
704 	ATF_CHECK_EQ(datalen, rsize);
705 
706 	/*
707 	 * FreeBSD does not currently provide the source address for SEQ_PACKET
708 	 * AF_UNIX sockets, and POSIX does not require it, so these two checks
709 	 * are disabled.  If FreeBSD gains that feature in the future, then
710 	 * these checks may be reenabled
711 	 */
712 	/* ATF_CHECK_EQ(PF_LOCAL, from.ss_family); */
713 	/* ATF_CHECK_STREQ(path, ((struct sockaddr_un*)&from)->sun_path); */
714 	close(sv[0]);
715 	close(sv[1]);
716 }
717 
718 /*
719  * send(2) and recv(2) a single short record with sockets created the
720  * traditional way, involving bind, listen, connect, and accept
721  */
722 ATF_TC_WITHOUT_HEAD(send_recv_with_connect);
723 ATF_TC_BODY(send_recv_with_connect, tc)
724 {
725 	int sv[2];
726 	const int bufsize = 64;
727 	const char *data = "data";
728 	char recv_buf[bufsize];
729 	ssize_t datalen;
730 	ssize_t ssize, rsize;
731 
732 	mk_pair_of_sockets(sv);
733 
734 	/* send and receive a small packet */
735 	datalen = strlen(data) + 1;	/* +1 for the null */
736 	ssize = send(sv[0], data, datalen, MSG_EOR);
737 	if (ssize < 0) {
738 		perror("send");
739 		atf_tc_fail("send returned < 0");
740 	}
741 	ATF_CHECK_EQ_MSG(datalen, ssize, "expected %zd=send(...) but got %zd",
742 	    datalen, ssize);
743 
744 	rsize = recv(sv[1], recv_buf, bufsize, MSG_WAITALL);
745 	ATF_CHECK_EQ(datalen, rsize);
746 	close(sv[0]);
747 	close(sv[1]);
748 }
749 
750 /* send(2) should fail on a shutdown socket */
751 ATF_TC_WITHOUT_HEAD(shutdown_send);
752 ATF_TC_BODY(shutdown_send, tc)
753 {
754 	struct sockaddr_un sun;
755 	/* ATF's isolation mechanisms will guarantee uniqueness of this file */
756 	const char *path = "sock";
757 	const char *data = "data";
758 	ssize_t ssize;
759 	int s, err, s2;
760 
761 	s = socket(PF_LOCAL, SOCK_SEQPACKET, 0);
762 	ATF_REQUIRE(s >= 0);
763 
764 	bzero(&sun, sizeof(sun));
765 	sun.sun_family = AF_LOCAL;
766 	sun.sun_len = sizeof(sun);
767 	strlcpy(sun.sun_path, path, sizeof(sun.sun_path));
768 	err = bind(s, (struct sockaddr *)&sun, sizeof(sun));
769 	err = listen(s, -1);
770 	ATF_CHECK_EQ(0, err);
771 
772 	/* Create the other socket */
773 	s2 = socket(PF_LOCAL, SOCK_SEQPACKET, 0);
774 	ATF_REQUIRE(s2 >= 0);
775 	err = connect(s2, (struct sockaddr*)&sun, sizeof(sun));
776 	if (err != 0) {
777 		perror("connect");
778 		atf_tc_fail("connect(2) failed");
779 	}
780 
781 	ATF_CHECK_EQ(0, shutdown(s2, SHUT_RDWR));
782 	/* USE MSG_NOSIGNAL so we don't get SIGPIPE */
783 	ssize = send(s2, data, sizeof(data), MSG_EOR | MSG_NOSIGNAL);
784 	ATF_CHECK_EQ(EPIPE, errno);
785 	ATF_CHECK_EQ(-1, ssize);
786 	close(s);
787 	close(s2);
788 }
789 
790 /* send(2) should cause SIGPIPE on a shutdown socket */
791 ATF_TC_WITHOUT_HEAD(shutdown_send_sigpipe);
792 ATF_TC_BODY(shutdown_send_sigpipe, tc)
793 {
794 	struct sockaddr_un sun;
795 	/* ATF's isolation mechanisms will guarantee uniqueness of this file */
796 	const char *path = "sock";
797 	const char *data = "data";
798 	ssize_t ssize;
799 	int s, err, s2;
800 
801 	s = socket(PF_LOCAL, SOCK_SEQPACKET, 0);
802 	ATF_REQUIRE(s >= 0);
803 
804 	bzero(&sun, sizeof(sun));
805 	sun.sun_family = AF_LOCAL;
806 	sun.sun_len = sizeof(sun);
807 	strlcpy(sun.sun_path, path, sizeof(sun.sun_path));
808 	err = bind(s, (struct sockaddr *)&sun, sizeof(sun));
809 	err = listen(s, -1);
810 	ATF_CHECK_EQ(0, err);
811 
812 	/* Create the other socket */
813 	s2 = socket(PF_LOCAL, SOCK_SEQPACKET, 0);
814 	ATF_REQUIRE(s2 >= 0);
815 	err = connect(s2, (struct sockaddr*)&sun, sizeof(sun));
816 	if (err != 0) {
817 		perror("connect");
818 		atf_tc_fail("connect(2) failed");
819 	}
820 
821 	ATF_CHECK_EQ(0, shutdown(s2, SHUT_RDWR));
822 	ATF_REQUIRE(SIG_ERR != signal(SIGPIPE, shutdown_send_sigpipe_handler));
823 	ssize = send(s2, data, sizeof(data), MSG_EOR);
824 	ATF_CHECK_EQ(1, got_sigpipe);
825 	close(s);
826 	close(s2);
827 }
828 
829 /* nonblocking send(2) and recv(2) a single short record */
830 ATF_TC_WITHOUT_HEAD(send_recv_nonblocking);
831 ATF_TC_BODY(send_recv_nonblocking, tc)
832 {
833 	int sv[2];
834 	const int bufsize = 64;
835 	const char *data = "data";
836 	char recv_buf[bufsize];
837 	ssize_t datalen;
838 	ssize_t ssize, rsize;
839 
840 	/* setup the socket pair */
841 	do_socketpair_nonblocking(sv);
842 
843 	/* Verify that there is nothing to receive */
844 	rsize = recv(sv[1], recv_buf, bufsize, MSG_WAITALL);
845 	ATF_CHECK_EQ(EAGAIN, errno);
846 	ATF_CHECK_EQ(-1, rsize);
847 
848 	/* send and receive a small packet */
849 	datalen = strlen(data) + 1;	/* +1 for the null */
850 	ssize = send(sv[0], data, datalen, MSG_EOR);
851 	if (ssize < 0) {
852 		perror("send");
853 		atf_tc_fail("send returned < 0");
854 	}
855 	ATF_CHECK_EQ_MSG(datalen, ssize, "expected %zd=send(...) but got %zd",
856 	    datalen, ssize);
857 
858 	rsize = recv(sv[1], recv_buf, bufsize, MSG_WAITALL);
859 	ATF_CHECK_EQ(datalen, rsize);
860 	close(sv[0]);
861 	close(sv[1]);
862 }
863 
864 /*
865  * We should get EMSGSIZE if we try to send a message larger than the socket
866  * buffer, with blocking sockets
867  */
868 ATF_TC_WITHOUT_HEAD(emsgsize);
869 ATF_TC_BODY(emsgsize, tc)
870 {
871 	int sv[2];
872 	const size_t sndbufsize = 8192;
873 	const size_t rcvbufsize = 8192;
874 	const size_t pktsize = (sndbufsize + rcvbufsize) * 2;
875 	char sndbuf[pktsize];
876 	ssize_t ssize;
877 
878 	/* setup the socket pair */
879 	do_socketpair(sv);
880 	/* Setup the buffers */
881 	ATF_REQUIRE_EQ(0, setsockopt(sv[0], SOL_SOCKET, SO_SNDBUF, &sndbufsize,
882 	    sizeof(sndbufsize)));
883 	ATF_REQUIRE_EQ(0, setsockopt(sv[1], SOL_SOCKET, SO_RCVBUF, &rcvbufsize,
884 	    sizeof(rcvbufsize)));
885 
886 	ssize = send(sv[0], sndbuf, pktsize, MSG_EOR);
887 	ATF_CHECK_EQ(EMSGSIZE, errno);
888 	ATF_CHECK_EQ(-1, ssize);
889 	close(sv[0]);
890 	close(sv[1]);
891 }
892 
893 /*
894  * We should get EMSGSIZE if we try to send a message larger than the socket
895  * buffer, with nonblocking sockets
896  */
897 ATF_TC_WITHOUT_HEAD(emsgsize_nonblocking);
898 ATF_TC_BODY(emsgsize_nonblocking, tc)
899 {
900 	int sv[2];
901 	const size_t sndbufsize = 8192;
902 	const size_t rcvbufsize = 8192;
903 	const size_t pktsize = (sndbufsize + rcvbufsize) * 2;
904 	char sndbuf[pktsize];
905 	ssize_t ssize;
906 
907 	/* setup the socket pair */
908 	do_socketpair_nonblocking(sv);
909 	/* Setup the buffers */
910 	ATF_REQUIRE_EQ(0, setsockopt(sv[0], SOL_SOCKET, SO_SNDBUF, &sndbufsize,
911 	    sizeof(sndbufsize)));
912 	ATF_REQUIRE_EQ(0, setsockopt(sv[1], SOL_SOCKET, SO_RCVBUF, &rcvbufsize,
913 	    sizeof(rcvbufsize)));
914 
915 	ssize = send(sv[0], sndbuf, pktsize, MSG_EOR);
916 	ATF_CHECK_EQ(EMSGSIZE, errno);
917 	ATF_CHECK_EQ(-1, ssize);
918 	close(sv[0]);
919 	close(sv[1]);
920 }
921 
922 
923 /*
924  * We should get EAGAIN if we try to send a message larger than the socket
925  * buffer, with nonblocking sockets.  Test with several different sockbuf sizes
926  */
927 ATF_TC_WITHOUT_HEAD(eagain_8k_8k);
928 ATF_TC_BODY(eagain_8k_8k, tc)
929 {
930 	test_eagain(8192, 8192);
931 }
932 ATF_TC_WITHOUT_HEAD(eagain_8k_128k);
933 ATF_TC_BODY(eagain_8k_128k, tc)
934 {
935 	test_eagain(8192, 131072);
936 }
937 ATF_TC_WITHOUT_HEAD(eagain_128k_8k);
938 ATF_TC_BODY(eagain_128k_8k, tc)
939 {
940 	test_eagain(131072, 8192);
941 }
942 ATF_TC_WITHOUT_HEAD(eagain_128k_128k);
943 ATF_TC_BODY(eagain_128k_128k, tc)
944 {
945 	test_eagain(131072, 131072);
946 }
947 
948 
949 /*
950  * nonblocking send(2) and recv(2) of several records, which should collectively
951  * fill up the send buffer but not the receive buffer
952  */
953 ATF_TC_WITHOUT_HEAD(rcvbuf_oversized);
954 ATF_TC_BODY(rcvbuf_oversized, tc)
955 {
956 	int i;
957 	int sv[2];
958 	const ssize_t pktsize = 1024;
959 	const size_t sndbufsize = 8192;
960 	const size_t rcvbufsize = 131072;
961 	const size_t geometric_mean_bufsize = 32768;
962 	const int numpkts = geometric_mean_bufsize / pktsize;
963 	char sndbuf[pktsize];
964 	char recv_buf[pktsize];
965 	ssize_t ssize, rsize;
966 
967 	/* setup the socket pair */
968 	do_socketpair_nonblocking(sv);
969 	ATF_REQUIRE_EQ(0, setsockopt(sv[0], SOL_SOCKET, SO_SNDBUF, &sndbufsize,
970 	    sizeof(sndbufsize)));
971 	ATF_REQUIRE_EQ(0, setsockopt(sv[1], SOL_SOCKET, SO_RCVBUF, &rcvbufsize,
972 	    sizeof(rcvbufsize)));
973 
974 	/*
975 	 * Send and receive packets that are collectively greater than the send
976 	 * buffer, but less than the receive buffer
977 	 */
978 	for (i=0; i < numpkts; i++) {
979 		/* Fill the buffer */
980 		memset(sndbuf, i, pktsize);
981 
982 		/* send the packet */
983 		ssize = send(sv[0], sndbuf, pktsize, MSG_EOR);
984 		if (ssize < 0) {
985 			perror("send");
986 			atf_tc_fail("send returned < 0");
987 		}
988 		ATF_CHECK_EQ_MSG(pktsize, ssize,
989 		    "expected %zd=send(...) but got %zd", pktsize, ssize);
990 
991 		/* Receive it */
992 
993 		rsize = recv(sv[1], recv_buf, pktsize, MSG_WAITALL);
994 		if (rsize < 0) {
995 			perror("recv");
996 			atf_tc_fail("recv returned < 0");
997 		}
998 		ATF_CHECK_EQ_MSG(pktsize, rsize,
999 		    "expected %zd=send(...) but got %zd", pktsize, rsize);
1000 
1001 		/* Verify the contents */
1002 		ATF_CHECK_EQ_MSG(0, memcmp(sndbuf, recv_buf, pktsize),
1003 		    "Received data miscompare");
1004 	}
1005 
1006 	/* Trying to receive again should return EAGAIN */
1007 	rsize = recv(sv[1], recv_buf, pktsize, MSG_WAITALL);
1008 	ATF_CHECK_EQ(EAGAIN, errno);
1009 	ATF_CHECK_EQ(-1, rsize);
1010 	close(sv[0]);
1011 	close(sv[1]);
1012 }
1013 
1014 /*
1015  * Simulate the behavior of a blocking pipe.  The sender will send until his
1016  * buffer fills up, then we'll simulate a scheduler switch that will allow the
1017  * receiver to read until his buffer empties.  Repeat the process until the
1018  * transfer is complete.
1019  * Repeat the test with multiple send and receive buffer sizes
1020  */
1021 ATF_TC_WITHOUT_HEAD(pipe_simulator_8k_8k);
1022 ATF_TC_BODY(pipe_simulator_8k_8k, tc)
1023 {
1024 	test_pipe_simulator(8192, 8192);
1025 }
1026 
1027 ATF_TC_WITHOUT_HEAD(pipe_simulator_8k_128k);
1028 ATF_TC_BODY(pipe_simulator_8k_128k, tc)
1029 {
1030 	test_pipe_simulator(8192, 131072);
1031 }
1032 
1033 ATF_TC_WITHOUT_HEAD(pipe_simulator_128k_8k);
1034 ATF_TC_BODY(pipe_simulator_128k_8k, tc)
1035 {
1036 	test_pipe_simulator(131072, 8192);
1037 }
1038 
1039 ATF_TC_WITHOUT_HEAD(pipe_simulator_128k_128k);
1040 ATF_TC_BODY(pipe_simulator_128k_128k, tc)
1041 {
1042 	test_pipe_simulator(131072, 131072);
1043 }
1044 
1045 /*
1046  * Test blocking I/O by passing data between two threads.  The total amount of
1047  * data will be >> buffer size to force blocking.  Repeat the test with multiple
1048  * send and receive buffer sizes
1049  */
1050 ATF_TC_WITHOUT_HEAD(pipe_8k_8k);
1051 ATF_TC_BODY(pipe_8k_8k, tc)
1052 {
1053 	test_pipe(8192, 8192);
1054 }
1055 
1056 ATF_TC_WITHOUT_HEAD(pipe_8k_128k);
1057 ATF_TC_BODY(pipe_8k_128k, tc)
1058 {
1059 	test_pipe(8192, 131072);
1060 }
1061 
1062 ATF_TC_WITHOUT_HEAD(pipe_128k_8k);
1063 ATF_TC_BODY(pipe_128k_8k, tc)
1064 {
1065 	test_pipe(131072, 8192);
1066 }
1067 
1068 ATF_TC_WITHOUT_HEAD(pipe_128k_128k);
1069 ATF_TC_BODY(pipe_128k_128k, tc)
1070 {
1071 	test_pipe(131072, 131072);
1072 }
1073 
1074 
1075 /*
1076  * Test single-packet I/O with and without blocking, with symmetric buffers of
1077  * various sizes
1078  */
1079 ATF_TC_WITHOUT_HEAD(sendrecv_8k);
1080 ATF_TC_BODY(sendrecv_8k, tc)
1081 {
1082 	test_sendrecv_symmetric_buffers(8 * 1024, true);
1083 }
1084 ATF_TC_WITHOUT_HEAD(sendrecv_16k);
1085 ATF_TC_BODY(sendrecv_16k, tc)
1086 {
1087 	test_sendrecv_symmetric_buffers(16 * 1024, true);
1088 }
1089 ATF_TC_WITHOUT_HEAD(sendrecv_32k);
1090 ATF_TC_BODY(sendrecv_32k, tc)
1091 {
1092 	test_sendrecv_symmetric_buffers(32 * 1024, true);
1093 }
1094 ATF_TC_WITHOUT_HEAD(sendrecv_64k);
1095 ATF_TC_BODY(sendrecv_64k, tc)
1096 {
1097 	test_sendrecv_symmetric_buffers(64 * 1024, true);
1098 }
1099 ATF_TC_WITHOUT_HEAD(sendrecv_128k);
1100 ATF_TC_BODY(sendrecv_128k, tc)
1101 {
1102 	test_sendrecv_symmetric_buffers(128 * 1024, true);
1103 }
1104 ATF_TC_WITHOUT_HEAD(sendrecv_8k_nonblocking);
1105 ATF_TC_BODY(sendrecv_8k_nonblocking, tc)
1106 {
1107 	test_sendrecv_symmetric_buffers(8 * 1024, false);
1108 }
1109 ATF_TC_WITHOUT_HEAD(sendrecv_16k_nonblocking);
1110 ATF_TC_BODY(sendrecv_16k_nonblocking, tc)
1111 {
1112 	test_sendrecv_symmetric_buffers(16 * 1024, false);
1113 }
1114 ATF_TC_WITHOUT_HEAD(sendrecv_32k_nonblocking);
1115 ATF_TC_BODY(sendrecv_32k_nonblocking, tc)
1116 {
1117 	test_sendrecv_symmetric_buffers(32 * 1024, false);
1118 }
1119 ATF_TC_WITHOUT_HEAD(sendrecv_64k_nonblocking);
1120 ATF_TC_BODY(sendrecv_64k_nonblocking, tc)
1121 {
1122 	test_sendrecv_symmetric_buffers(64 * 1024, false);
1123 }
1124 ATF_TC_WITHOUT_HEAD(sendrecv_128k_nonblocking);
1125 ATF_TC_BODY(sendrecv_128k_nonblocking, tc)
1126 {
1127 	test_sendrecv_symmetric_buffers(128 * 1024, false);
1128 }
1129 
1130 
1131 /*
1132  * Main.
1133  */
1134 
1135 ATF_TP_ADD_TCS(tp)
1136 {
1137 	/* Basic creation and connection tests */
1138 	ATF_TP_ADD_TC(tp, create_socket);
1139 	ATF_TP_ADD_TC(tp, create_socketpair);
1140 	ATF_TP_ADD_TC(tp, listen_unbound);
1141 	ATF_TP_ADD_TC(tp, bind);
1142 	ATF_TP_ADD_TC(tp, listen_bound);
1143 	ATF_TP_ADD_TC(tp, connect);
1144 	ATF_TP_ADD_TC(tp, accept);
1145 	ATF_TP_ADD_TC(tp, fcntl_nonblock);
1146 	ATF_TP_ADD_TC(tp, resize_buffers);
1147 	ATF_TP_ADD_TC(tp, resize_connected_buffers);
1148 
1149 	/* Unthreaded I/O tests */
1150 	ATF_TP_ADD_TC(tp, send_recv);
1151 	ATF_TP_ADD_TC(tp, send_recv_nonblocking);
1152 	ATF_TP_ADD_TC(tp, send_recv_with_connect);
1153 	ATF_TP_ADD_TC(tp, sendto_recvfrom);
1154 	ATF_TP_ADD_TC(tp, shutdown_send);
1155 	ATF_TP_ADD_TC(tp, shutdown_send_sigpipe);
1156 	ATF_TP_ADD_TC(tp, emsgsize);
1157 	ATF_TP_ADD_TC(tp, emsgsize_nonblocking);
1158 	ATF_TP_ADD_TC(tp, eagain_8k_8k);
1159 	ATF_TP_ADD_TC(tp, eagain_8k_128k);
1160 	ATF_TP_ADD_TC(tp, eagain_128k_8k);
1161 	ATF_TP_ADD_TC(tp, eagain_128k_128k);
1162 	ATF_TP_ADD_TC(tp, sendrecv_8k);
1163 	ATF_TP_ADD_TC(tp, sendrecv_16k);
1164 	ATF_TP_ADD_TC(tp, sendrecv_32k);
1165 	ATF_TP_ADD_TC(tp, sendrecv_64k);
1166 	ATF_TP_ADD_TC(tp, sendrecv_128k);
1167 	ATF_TP_ADD_TC(tp, sendrecv_8k_nonblocking);
1168 	ATF_TP_ADD_TC(tp, sendrecv_16k_nonblocking);
1169 	ATF_TP_ADD_TC(tp, sendrecv_32k_nonblocking);
1170 	ATF_TP_ADD_TC(tp, sendrecv_64k_nonblocking);
1171 	ATF_TP_ADD_TC(tp, sendrecv_128k_nonblocking);
1172 	ATF_TP_ADD_TC(tp, rcvbuf_oversized);
1173 	ATF_TP_ADD_TC(tp, pipe_simulator_8k_8k);
1174 	ATF_TP_ADD_TC(tp, pipe_simulator_8k_128k);
1175 	ATF_TP_ADD_TC(tp, pipe_simulator_128k_8k);
1176 	ATF_TP_ADD_TC(tp, pipe_simulator_128k_128k);
1177 
1178 	/* Threaded I/O tests with blocking sockets */
1179 	ATF_TP_ADD_TC(tp, pipe_8k_8k);
1180 	ATF_TP_ADD_TC(tp, pipe_8k_128k);
1181 	ATF_TP_ADD_TC(tp, pipe_128k_8k);
1182 	ATF_TP_ADD_TC(tp, pipe_128k_128k);
1183 
1184 	return atf_no_error();
1185 }
1186