1 /* $NetBSD: t_sysv.c,v 1.4 2014/03/02 20:13:12 jmmv Exp $ */
4 * Copyright (c) 1999, 2007 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center, and by Andrew Doran.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
34 * Test the SVID-compatible Message Queue facility.
51 #include <sys/param.h>
56 volatile int did_sigsys, did_sigchild;
57 volatile int child_status, child_count;
59 void sigsys_handler(int);
60 void sigchld_handler(int);
64 void print_msqid_ds(struct msqid_ds *, mode_t);
67 void print_semid_ds(struct semid_ds *, mode_t);
70 void print_shmid_ds(struct shmid_ds *, mode_t);
73 #define MESSAGE_TEXT_LEN 256
77 char mtext[MESSAGE_TEXT_LEN];
80 const char *m1_str = "California is overrated.";
81 const char *m2_str = "The quick brown fox jumped over the lazy dog.";
93 key_t msgkey, semkey, shmkey;
98 int val; /* value for SETVAL */
99 struct semid_ds *buf; /* buffer for IPC_{STAT,SET} */
100 u_short *array; /* array for GETALL & SETALL */
104 /* Writes an integer to a file. To be used from the body of the test
105 * cases below to pass any global identifiers to the cleanup routine. */
107 write_int(const char *path, const int value)
111 output = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0600);
112 ATF_REQUIRE_MSG(output != -1, "Failed to create %s", path);
113 write(output, &value, sizeof(value));
118 /* Reads an integer from a file. To be used from the cleanup routines
119 * of the test cases below. */
121 read_int(const char *path)
125 input = open(path, O_RDONLY);
130 read(input, &value, sizeof(value));
137 sigsys_handler(int signo)
144 sigchld_handler(int signo)
150 * Reap the child and return its status
152 if (wait(&c_status) == -1)
153 child_status = -errno;
155 child_status = c_status;
160 key_t get_ftok(int id)
163 char token_key[64], token_dir[64];
167 strlcpy(token_key, "/tmp/t_sysv.XXXXXX", sizeof(token_key));
168 tmpdir = mkdtemp(token_key);
169 ATF_REQUIRE_MSG(tmpdir != NULL, "mkdtemp() failed: %d", errno);
171 strlcpy(token_dir, tmpdir, sizeof(token_dir));
172 strlcpy(token_key, tmpdir, sizeof(token_key));
173 strlcat(token_key, "/token_key", sizeof(token_key));
175 /* Create the file, since ftok() requires it to exist! */
177 fd = open(token_key, O_RDWR | O_CREAT | O_EXCL);
180 atf_tc_fail("open() of temp file failed: %d", errno);
185 key = ftok(token_key, id);
187 ATF_REQUIRE_MSG(unlink(token_key) != -1, "unlink() failed: %d", errno);
188 ATF_REQUIRE_MSG(rmdir(token_dir) != -1, "rmdir() failed: %d", errno);
193 ATF_TC_WITH_CLEANUP(msg);
197 atf_tc_set_md_var(tc, "timeout", "3");
198 atf_tc_set_md_var(tc, "descr", "Checks sysvmsg passing");
204 struct msqid_ds m_ds;
212 * Install a SIGSYS handler so that we can exit gracefully if
213 * System V Message Queue support isn't in the kernel.
216 sa.sa_handler = sigsys_handler;
217 sigemptyset(&sa.sa_mask);
219 ATF_REQUIRE_MSG(sigaction(SIGSYS, &sa, NULL) != -1,
220 "sigaction SIGSYS: %d", errno);
223 * Install a SIGCHLD handler to deal with all possible exit
224 * conditions of the receiver.
228 sa.sa_handler = sigchld_handler;
229 sigemptyset(&sa.sa_mask);
231 ATF_REQUIRE_MSG(sigaction(SIGCHLD, &sa, NULL) != -1,
232 "sigaction SIGCHLD: %d", errno);
234 msgkey = get_ftok(4160);
235 ATF_REQUIRE_MSG(msgkey != (key_t)-1, "get_ftok failed");
237 sender_msqid = msgget(msgkey, IPC_CREAT | 0640);
238 ATF_REQUIRE_MSG(sender_msqid != -1, "msgget: %d", errno);
239 write_int("sender_msqid", sender_msqid);
242 atf_tc_skip("SYSV Message Queue not supported");
246 ATF_REQUIRE_MSG(msgctl(sender_msqid, IPC_STAT, &m_ds) != -1,
247 "msgctl IPC_STAT 1: %d", errno);
249 print_msqid_ds(&m_ds, 0640);
251 m_ds.msg_perm.mode = (m_ds.msg_perm.mode & ~0777) | 0600;
253 ATF_REQUIRE_MSG(msgctl(sender_msqid, IPC_SET, &m_ds) != -1,
254 "msgctl IPC_SET: %d", errno);
256 memset(&m_ds, 0, sizeof(m_ds));
258 ATF_REQUIRE_MSG(msgctl(sender_msqid, IPC_STAT, &m_ds) != -1,
259 "msgctl IPC_STAT 2: %d", errno);
261 ATF_REQUIRE_MSG((m_ds.msg_perm.mode & 0777) == 0600,
262 "IPC_SET of mode didn't hold");
264 print_msqid_ds(&m_ds, 0600);
266 switch ((child_pid = fork())) {
268 atf_tc_fail("fork: %d", errno);
280 for (loop = 0; loop < maxloop; loop++) {
282 * Send the first message to the receiver and wait for the ACK.
285 strcpy(m.mtext, m1_str);
286 ATF_REQUIRE_MSG(msgsnd(sender_msqid, &m, MESSAGE_TEXT_LEN,
287 0) != -1, "sender: msgsnd 1: %d", errno);
289 ATF_REQUIRE_MSG(msgrcv(sender_msqid, &m, MESSAGE_TEXT_LEN,
290 MTYPE_1_ACK, 0) == MESSAGE_TEXT_LEN,
291 "sender: msgrcv 1 ack: %d", errno);
293 print_msqid_ds(&m_ds, 0600);
296 * Send the second message to the receiver and wait for the ACK.
299 strcpy(m.mtext, m2_str);
300 ATF_REQUIRE_MSG(msgsnd(sender_msqid, &m, MESSAGE_TEXT_LEN, 0) != -1,
301 "sender: msgsnd 2: %d", errno);
303 ATF_REQUIRE_MSG(msgrcv(sender_msqid, &m, MESSAGE_TEXT_LEN,
304 MTYPE_2_ACK, 0) == MESSAGE_TEXT_LEN,
305 "sender: msgrcv 2 ack: %d", errno);
309 * Wait for child to finish
311 sigemptyset(&sigmask);
312 (void) sigsuspend(&sigmask);
315 * ...and any other signal is an unexpected error.
318 c_status = child_status;
320 atf_tc_fail("waitpid: %d", -c_status);
321 else if (WIFEXITED(c_status) == 0)
322 atf_tc_fail("child abnormal exit: %d", c_status);
323 else if (WEXITSTATUS(c_status) != 0)
324 atf_tc_fail("c status: %d", WEXITSTATUS(c_status));
326 ATF_REQUIRE_MSG(msgctl(sender_msqid, IPC_STAT, &m_ds)
327 != -1, "msgctl IPC_STAT: %d", errno);
329 print_msqid_ds(&m_ds, 0600);
333 atf_tc_fail("sender: received unexpected signal");
336 ATF_TC_CLEANUP(msg, tc)
341 * Remove the message queue if it exists.
343 sender_msqid = read_int("sender_msqid");
344 if (sender_msqid != -1)
345 if (msgctl(sender_msqid, IPC_RMID, NULL) == -1)
346 err(1, "msgctl IPC_RMID");
350 print_msqid_ds(mp, mode)
354 uid_t uid = geteuid();
355 gid_t gid = getegid();
357 printf("PERM: uid %d, gid %d, cuid %d, cgid %d, mode 0%o\n",
358 mp->msg_perm.uid, mp->msg_perm.gid,
359 mp->msg_perm.cuid, mp->msg_perm.cgid,
360 mp->msg_perm.mode & 0777);
362 printf("qnum %lu, qbytes %lu, lspid %d, lrpid %d\n",
363 mp->msg_qnum, (u_long)mp->msg_qbytes, mp->msg_lspid,
366 printf("stime: %s", ctime(&mp->msg_stime));
367 printf("rtime: %s", ctime(&mp->msg_rtime));
368 printf("ctime: %s", ctime(&mp->msg_ctime));
371 * Sanity check a few things.
374 ATF_REQUIRE_MSG(mp->msg_perm.uid == uid && mp->msg_perm.cuid == uid,
377 ATF_REQUIRE_MSG(mp->msg_perm.gid == gid && mp->msg_perm.cgid == gid,
380 ATF_REQUIRE_MSG((mp->msg_perm.mode & 0777) == mode, "mode mismatch");
389 if ((msqid = msgget(msgkey, 0)) == -1)
390 err(1, "receiver: msgget");
392 for (loop = 0; loop < maxloop; loop++) {
394 * Receive the first message, print it, and send an ACK.
396 if (msgrcv(msqid, &m, MESSAGE_TEXT_LEN, MTYPE_1, 0) != MESSAGE_TEXT_LEN)
397 err(1, "receiver: msgrcv 1");
399 printf("%s\n", m.mtext);
400 if (strcmp(m.mtext, m1_str) != 0)
401 err(1, "receiver: message 1 data isn't correct");
403 m.mtype = MTYPE_1_ACK;
405 if (msgsnd(msqid, &m, MESSAGE_TEXT_LEN, 0) == -1)
406 err(1, "receiver: msgsnd ack 1");
409 * Receive the second message, print it, and send an ACK.
412 if (msgrcv(msqid, &m, MESSAGE_TEXT_LEN, MTYPE_2, 0) != MESSAGE_TEXT_LEN)
413 err(1, "receiver: msgrcv 2");
415 printf("%s\n", m.mtext);
416 if (strcmp(m.mtext, m2_str) != 0)
417 err(1, "receiver: message 2 data isn't correct");
419 m.mtype = MTYPE_2_ACK;
421 if (msgsnd(msqid, &m, MESSAGE_TEXT_LEN, 0) == -1)
422 err(1, "receiver: msgsnd ack 2");
429 * Test the SVID-compatible Semaphore facility.
432 ATF_TC_WITH_CLEANUP(sem);
436 atf_tc_set_md_var(tc, "timeout", "3");
437 atf_tc_set_md_var(tc, "descr", "Checks sysvmsg passing");
444 struct semid_ds s_ds;
451 * Install a SIGSYS handler so that we can exit gracefully if
452 * System V Semaphore support isn't in the kernel.
455 sa.sa_handler = sigsys_handler;
456 sigemptyset(&sa.sa_mask);
458 ATF_REQUIRE_MSG(sigaction(SIGSYS, &sa, NULL) != -1,
459 "sigaction SIGSYS: %d", errno);
462 * Install a SIGCHLD handler to deal with all possible exit
463 * conditions of the receiver.
467 sa.sa_handler = sigchld_handler;
468 sigemptyset(&sa.sa_mask);
470 ATF_REQUIRE_MSG(sigaction(SIGCHLD, &sa, NULL) != -1,
471 "sigaction SIGCHLD: %d", errno);
473 semkey = get_ftok(4160);
474 ATF_REQUIRE_MSG(semkey != (key_t)-1, "get_ftok failed");
476 sender_semid = semget(semkey, 1, IPC_CREAT | 0640);
477 ATF_REQUIRE_MSG(sender_semid != -1, "semget: %d", errno);
478 write_int("sender_semid", sender_semid);
481 atf_tc_skip("SYSV Semaphore not supported");
486 ATF_REQUIRE_MSG(semctl(sender_semid, 0, IPC_STAT, sun) != -1,
487 "semctl IPC_STAT: %d", errno);
489 print_semid_ds(&s_ds, 0640);
491 s_ds.sem_perm.mode = (s_ds.sem_perm.mode & ~0777) | 0600;
494 ATF_REQUIRE_MSG(semctl(sender_semid, 0, IPC_SET, sun) != -1,
495 "semctl IPC_SET: %d", errno);
497 memset(&s_ds, 0, sizeof(s_ds));
500 ATF_REQUIRE_MSG(semctl(sender_semid, 0, IPC_STAT, sun) != -1,
501 "semctl IPC_STAT: %d", errno);
503 ATF_REQUIRE_MSG((s_ds.sem_perm.mode & 0777) == 0600,
504 "IPC_SET of mode didn't hold");
506 print_semid_ds(&s_ds, 0600);
508 for (child_count = 0; child_count < 5; child_count++) {
509 switch ((child_pid = fork())) {
511 atf_tc_fail("fork: %d", errno);
524 * Wait for all of the waiters to be attempting to acquire the
528 i = semctl(sender_semid, 0, GETNCNT);
530 atf_tc_fail("semctl GETNCNT: %d", i);
536 * Now set the thundering herd in motion by initializing the
537 * semaphore to the value 1.
540 ATF_REQUIRE_MSG(semctl(sender_semid, 0, SETVAL, sun) != -1,
541 "sender: semctl SETVAL to 1: %d", errno);
544 * Wait for all children to finish
546 sigemptyset(&sigmask);
548 (void) sigsuspend(&sigmask);
550 c_status = child_status;
552 atf_tc_fail("waitpid: %d", -c_status);
553 else if (WIFEXITED(c_status) == 0)
554 atf_tc_fail("c abnormal exit: %d", c_status);
555 else if (WEXITSTATUS(c_status) != 0)
556 atf_tc_fail("c status: %d",
557 WEXITSTATUS(c_status));
560 ATF_REQUIRE_MSG(semctl(sender_semid, 0,
561 IPC_STAT, sun) != -1,
562 "semctl IPC_STAT: %d", errno);
564 print_semid_ds(&s_ds, 0600);
567 if (child_count <= 0)
571 atf_tc_fail("sender: received unexpected signal");
577 ATF_TC_CLEANUP(sem, tc)
582 * Remove the semaphore if it exists
584 sender_semid = read_int("sender_semid");
585 if (sender_semid != -1)
586 if (semctl(sender_semid, 0, IPC_RMID) == -1)
587 err(1, "semctl IPC_RMID");
591 print_semid_ds(sp, mode)
595 uid_t uid = geteuid();
596 gid_t gid = getegid();
598 printf("PERM: uid %d, gid %d, cuid %d, cgid %d, mode 0%o\n",
599 sp->sem_perm.uid, sp->sem_perm.gid,
600 sp->sem_perm.cuid, sp->sem_perm.cgid,
601 sp->sem_perm.mode & 0777);
603 printf("nsems %u\n", sp->sem_nsems);
605 printf("otime: %s", ctime(&sp->sem_otime));
606 printf("ctime: %s", ctime(&sp->sem_ctime));
609 * Sanity check a few things.
612 ATF_REQUIRE_MSG(sp->sem_perm.uid == uid && sp->sem_perm.cuid == uid,
615 ATF_REQUIRE_MSG(sp->sem_perm.gid == gid && sp->sem_perm.cgid == gid,
618 ATF_REQUIRE_MSG((sp->sem_perm.mode & 0777) == mode,
619 "mode mismatch %o != %o", (sp->sem_perm.mode & 0777), mode);
628 if ((semid = semget(semkey, 1, 0)) == -1)
629 err(1, "waiter: semget");
632 * Attempt to acquire the semaphore.
636 s.sem_flg = SEM_UNDO;
638 if (semop(semid, &s, 1) == -1)
639 err(1, "waiter: semop -1");
641 printf("WOO! GOT THE SEMAPHORE!\n");
645 * Release the semaphore and exit.
649 s.sem_flg = SEM_UNDO;
651 if (semop(semid, &s, 1) == -1)
652 err(1, "waiter: semop +1");
658 * Test the SVID-compatible Shared Memory facility.
661 ATF_TC_WITH_CLEANUP(shm);
665 atf_tc_set_md_var(tc, "timeout", "3");
666 atf_tc_set_md_var(tc, "descr", "Checks sysv shared memory");
672 struct shmid_ds s_ds;
679 * Install a SIGSYS handler so that we can exit gracefully if
680 * System V Shared Memory support isn't in the kernel.
683 sa.sa_handler = sigsys_handler;
684 sigemptyset(&sa.sa_mask);
686 ATF_REQUIRE_MSG(sigaction(SIGSYS, &sa, NULL) != -1,
687 "sigaction SIGSYS: %d", errno);
690 * Install a SIGCHLD handler to deal with all possible exit
691 * conditions of the sharer.
695 sa.sa_handler = sigchld_handler;
696 sigemptyset(&sa.sa_mask);
698 ATF_REQUIRE_MSG(sigaction(SIGCHLD, &sa, NULL) != -1,
699 "sigaction SIGCHLD: %d", errno);
701 pgsize = sysconf(_SC_PAGESIZE);
703 shmkey = get_ftok(4160);
704 ATF_REQUIRE_MSG(shmkey != (key_t)-1, "get_ftok failed");
706 ATF_REQUIRE_MSG((sender_shmid = shmget(shmkey, pgsize,
707 IPC_CREAT | 0640)) != -1,
708 "shmget: %d", errno);
709 write_int("sender_shmid", sender_shmid);
711 ATF_REQUIRE_MSG(shmctl(sender_shmid, IPC_STAT, &s_ds) != -1,
712 "shmctl IPC_STAT: %d", errno);
714 print_shmid_ds(&s_ds, 0640);
716 s_ds.shm_perm.mode = (s_ds.shm_perm.mode & ~0777) | 0600;
718 ATF_REQUIRE_MSG(shmctl(sender_shmid, IPC_SET, &s_ds) != -1,
719 "shmctl IPC_SET: %d", errno);
721 memset(&s_ds, 0, sizeof(s_ds));
723 ATF_REQUIRE_MSG(shmctl(sender_shmid, IPC_STAT, &s_ds) != -1,
724 "shmctl IPC_STAT: %d", errno);
726 ATF_REQUIRE_MSG((s_ds.shm_perm.mode & 0777) == 0600,
727 "IPC_SET of mode didn't hold");
729 print_shmid_ds(&s_ds, 0600);
731 shm_buf = shmat(sender_shmid, NULL, 0);
732 ATF_REQUIRE_MSG(shm_buf != (void *) -1, "sender: shmat: %d", errno);
735 * Write the test pattern into the shared memory buffer.
737 strcpy(shm_buf, m2_str);
739 switch ((child_pid = fork())) {
741 atf_tc_fail("fork: %d", errno);
753 * Wait for child to finish
755 sigemptyset(&sigmask);
756 (void) sigsuspend(&sigmask);
759 c_status = child_status;
761 atf_tc_fail("waitpid: %d", -c_status);
762 else if (WIFEXITED(c_status) == 0)
763 atf_tc_fail("c abnormal exit: %d", c_status);
764 else if (WEXITSTATUS(c_status) != 0)
765 atf_tc_fail("c status: %d", WEXITSTATUS(c_status));
767 ATF_REQUIRE_MSG(shmctl(sender_shmid, IPC_STAT,
769 "shmctl IPC_STAT: %d", errno);
771 print_shmid_ds(&s_ds, 0600);
775 atf_tc_fail("sender: received unexpected signal");
778 ATF_TC_CLEANUP(shm, tc)
783 * Remove the shared memory area if it exists.
785 sender_shmid = read_int("sender_shmid");
786 if (sender_shmid != -1)
787 if (shmctl(sender_shmid, IPC_RMID, NULL) == -1)
788 err(1, "shmctl IPC_RMID");
792 print_shmid_ds(sp, mode)
796 uid_t uid = geteuid();
797 gid_t gid = getegid();
799 printf("PERM: uid %d, gid %d, cuid %d, cgid %d, mode 0%o\n",
800 sp->shm_perm.uid, sp->shm_perm.gid,
801 sp->shm_perm.cuid, sp->shm_perm.cgid,
802 sp->shm_perm.mode & 0777);
804 printf("segsz %lu, lpid %d, cpid %d, nattch %u\n",
805 (u_long)sp->shm_segsz, sp->shm_lpid, sp->shm_cpid,
808 printf("atime: %s", ctime(&sp->shm_atime));
809 printf("dtime: %s", ctime(&sp->shm_dtime));
810 printf("ctime: %s", ctime(&sp->shm_ctime));
813 * Sanity check a few things.
816 ATF_REQUIRE_MSG(sp->shm_perm.uid == uid && sp->shm_perm.cuid == uid,
819 ATF_REQUIRE_MSG(sp->shm_perm.gid == gid && sp->shm_perm.cgid == gid,
822 ATF_REQUIRE_MSG((sp->shm_perm.mode & 0777) == mode, "mode mismatch");
831 shmid = shmget(shmkey, pgsize, 0);
832 ATF_REQUIRE_MSG(shmid != -1, "receiver: shmget:%d", errno);
834 shm_buf = shmat(shmid, NULL, 0);
835 ATF_REQUIRE_MSG(shm_buf != (void *) -1, "receiver: shmat: %d", errno);
837 printf("%s\n", (const char *)shm_buf);
839 ATF_REQUIRE_MSG(strcmp((const char *)shm_buf, m2_str) == 0,
840 "receiver: data isn't correct");
848 ATF_TP_ADD_TC(tp, msg);
849 ATF_TP_ADD_TC(tp, sem);
850 ATF_TP_ADD_TC(tp, shm);
852 return atf_no_error();