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-rw-r--r--tests/sys/aio/aio_test.c658
1 files changed, 658 insertions, 0 deletions
diff --git a/tests/sys/aio/aio_test.c b/tests/sys/aio/aio_test.c
new file mode 100644
index 0000000..4134e78
--- /dev/null
+++ b/tests/sys/aio/aio_test.c
@@ -0,0 +1,658 @@
+/*-
+ * Copyright (c) 2004 Robert N. M. Watson
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Regression test to do some very basic AIO exercising on several types of
+ * file descriptors. Currently, the tests consist of initializing a fixed
+ * size buffer with pseudo-random data, writing it to one fd using AIO, then
+ * reading it from a second descriptor using AIO. For some targets, the same
+ * fd is used for write and read (i.e., file, md device), but for others the
+ * operation is performed on a peer (pty, socket, fifo, etc). A timeout is
+ * initiated to detect undo blocking. This test does not attempt to exercise
+ * error cases or more subtle asynchronous behavior, just make sure that the
+ * basic operations work on some basic object types.
+ */
+
+#include <sys/param.h>
+#include <sys/module.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/mdioctl.h>
+
+#include <aio.h>
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <libutil.h>
+#include <limits.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <termios.h>
+#include <unistd.h>
+
+#include <atf-c.h>
+
+#include "freebsd_test_suite/macros.h"
+
+#define PATH_TEMPLATE "aio.XXXXXXXXXX"
+
+/*
+ * GLOBAL_MAX sets the largest usable buffer size to be read and written, as
+ * it sizes ac_buffer in the aio_context structure. It is also the default
+ * size for file I/O. For other types, we use smaller blocks or we risk
+ * blocking (and we run in a single process/thread so that would be bad).
+ */
+#define GLOBAL_MAX 16384
+
+#define BUFFER_MAX GLOBAL_MAX
+struct aio_context {
+ int ac_read_fd, ac_write_fd;
+ long ac_seed;
+ char ac_buffer[GLOBAL_MAX];
+ int ac_buflen;
+ int ac_seconds;
+ void (*ac_cleanup)(void *arg);
+ void *ac_cleanup_arg;
+};
+
+static int aio_timedout;
+
+/*
+ * Each test run specifies a timeout in seconds. Use the somewhat obsoleted
+ * signal(3) and alarm(3) APIs to set this up.
+ */
+static void
+aio_timeout_signal(int sig __unused)
+{
+
+ aio_timedout = 1;
+}
+
+static void
+aio_timeout_start(int seconds)
+{
+
+ aio_timedout = 0;
+ ATF_REQUIRE_MSG(signal(SIGALRM, aio_timeout_signal) != SIG_ERR,
+ "failed to set SIGALRM handler: %s", strerror(errno));
+ alarm(seconds);
+}
+
+static void
+aio_timeout_stop(void)
+{
+
+ ATF_REQUIRE_MSG(signal(SIGALRM, NULL) != SIG_ERR,
+ "failed to reset SIGALRM handler to default: %s", strerror(errno));
+ alarm(0);
+}
+
+/*
+ * Fill a buffer given a seed that can be fed into srandom() to initialize
+ * the PRNG in a repeatable manner.
+ */
+static void
+aio_fill_buffer(char *buffer, int len, long seed)
+{
+ char ch;
+ int i;
+
+ srandom(seed);
+ for (i = 0; i < len; i++) {
+ ch = random() & 0xff;
+ buffer[i] = ch;
+ }
+}
+
+/*
+ * Test that a buffer matches a given seed. See aio_fill_buffer(). Return
+ * (1) on a match, (0) on a mismatch.
+ */
+static int
+aio_test_buffer(char *buffer, int len, long seed)
+{
+ char ch;
+ int i;
+
+ srandom(seed);
+ for (i = 0; i < len; i++) {
+ ch = random() & 0xff;
+ if (buffer[i] != ch)
+ return (0);
+ }
+ return (1);
+}
+
+/*
+ * Initialize a testing context given the file descriptors provided by the
+ * test setup.
+ */
+static void
+aio_context_init(struct aio_context *ac, int read_fd,
+ int write_fd, int buflen, int seconds, void (*cleanup)(void *),
+ void *cleanup_arg)
+{
+
+ ATF_REQUIRE_MSG(buflen <= BUFFER_MAX,
+ "aio_context_init: buffer too large (%d > %d)",
+ buflen, BUFFER_MAX);
+ bzero(ac, sizeof(*ac));
+ ac->ac_read_fd = read_fd;
+ ac->ac_write_fd = write_fd;
+ ac->ac_buflen = buflen;
+ srandomdev();
+ ac->ac_seed = random();
+ aio_fill_buffer(ac->ac_buffer, buflen, ac->ac_seed);
+ ATF_REQUIRE_MSG(aio_test_buffer(ac->ac_buffer, buflen,
+ ac->ac_seed) != 0, "aio_test_buffer: internal error");
+ ac->ac_seconds = seconds;
+ ac->ac_cleanup = cleanup;
+ ac->ac_cleanup_arg = cleanup_arg;
+}
+
+/*
+ * Each tester can register a callback to clean up in the event the test
+ * fails. Preserve the value of errno so that subsequent calls to errx()
+ * work properly.
+ */
+static void
+aio_cleanup(struct aio_context *ac)
+{
+ int error;
+
+ if (ac->ac_cleanup == NULL)
+ return;
+ error = errno;
+ (ac->ac_cleanup)(ac->ac_cleanup_arg);
+ errno = error;
+}
+
+/*
+ * Perform a simple write test of our initialized data buffer to the provided
+ * file descriptor.
+ */
+static void
+aio_write_test(struct aio_context *ac)
+{
+ struct aiocb aio, *aiop;
+ ssize_t len;
+
+ ATF_REQUIRE_KERNEL_MODULE("aio");
+
+ bzero(&aio, sizeof(aio));
+ aio.aio_buf = ac->ac_buffer;
+ aio.aio_nbytes = ac->ac_buflen;
+ aio.aio_fildes = ac->ac_write_fd;
+ aio.aio_offset = 0;
+
+ aio_timeout_start(ac->ac_seconds);
+
+ if (aio_write(&aio) < 0) {
+ if (errno == EINTR) {
+ if (aio_timedout) {
+ aio_cleanup(ac);
+ atf_tc_fail("aio_write timed out");
+ }
+ }
+ aio_cleanup(ac);
+ atf_tc_fail("aio_write failed: %s", strerror(errno));
+ }
+
+ len = aio_waitcomplete(&aiop, NULL);
+ if (len < 0) {
+ if (errno == EINTR) {
+ if (aio_timedout) {
+ aio_cleanup(ac);
+ atf_tc_fail("aio_waitcomplete timed out");
+ }
+ }
+ aio_cleanup(ac);
+ atf_tc_fail("aio_waitcomplete failed: %s", strerror(errno));
+ }
+
+ aio_timeout_stop();
+
+ if (len != ac->ac_buflen) {
+ aio_cleanup(ac);
+ atf_tc_fail("aio_waitcomplete short write (%jd)",
+ (intmax_t)len);
+ }
+}
+
+/*
+ * Perform a simple read test of our initialized data buffer from the
+ * provided file descriptor.
+ */
+static void
+aio_read_test(struct aio_context *ac)
+{
+ struct aiocb aio, *aiop;
+ ssize_t len;
+
+ ATF_REQUIRE_KERNEL_MODULE("aio");
+
+ bzero(ac->ac_buffer, ac->ac_buflen);
+ bzero(&aio, sizeof(aio));
+ aio.aio_buf = ac->ac_buffer;
+ aio.aio_nbytes = ac->ac_buflen;
+ aio.aio_fildes = ac->ac_read_fd;
+ aio.aio_offset = 0;
+
+ aio_timeout_start(ac->ac_seconds);
+
+ if (aio_read(&aio) < 0) {
+ if (errno == EINTR) {
+ if (aio_timedout) {
+ aio_cleanup(ac);
+ atf_tc_fail("aio_write timed out");
+ }
+ }
+ aio_cleanup(ac);
+ atf_tc_fail("aio_read failed: %s", strerror(errno));
+ }
+
+ len = aio_waitcomplete(&aiop, NULL);
+ if (len < 0) {
+ if (errno == EINTR) {
+ if (aio_timedout) {
+ aio_cleanup(ac);
+ atf_tc_fail("aio_waitcomplete timed out");
+ }
+ }
+ aio_cleanup(ac);
+ atf_tc_fail("aio_waitcomplete failed: %s", strerror(errno));
+ }
+
+ aio_timeout_stop();
+
+ if (len != ac->ac_buflen) {
+ aio_cleanup(ac);
+ atf_tc_fail("aio_waitcomplete short read (%jd)",
+ (intmax_t)len);
+ }
+
+ if (aio_test_buffer(ac->ac_buffer, ac->ac_buflen, ac->ac_seed) == 0) {
+ aio_cleanup(ac);
+ atf_tc_fail("buffer mismatched");
+ }
+}
+
+/*
+ * Series of type-specific tests for AIO. For now, we just make sure we can
+ * issue a write and then a read to each type. We assume that once a write
+ * is issued, a read can follow.
+ */
+
+/*
+ * Test with a classic file. Assumes we can create a moderate size temporary
+ * file.
+ */
+struct aio_file_arg {
+ int afa_fd;
+ char *afa_pathname;
+};
+
+static void
+aio_file_cleanup(void *arg)
+{
+ struct aio_file_arg *afa;
+
+ afa = arg;
+ close(afa->afa_fd);
+ unlink(afa->afa_pathname);
+}
+
+#define FILE_LEN GLOBAL_MAX
+#define FILE_TIMEOUT 30
+ATF_TC_WITHOUT_HEAD(aio_file_test);
+ATF_TC_BODY(aio_file_test, tc)
+{
+ char pathname[PATH_MAX];
+ struct aio_file_arg arg;
+ struct aio_context ac;
+ int fd;
+
+ ATF_REQUIRE_KERNEL_MODULE("aio");
+
+ strcpy(pathname, PATH_TEMPLATE);
+ fd = mkstemp(pathname);
+ ATF_REQUIRE_MSG(fd != -1, "mkstemp failed: %s", strerror(errno));
+
+ arg.afa_fd = fd;
+ arg.afa_pathname = pathname;
+
+ aio_context_init(&ac, fd, fd, FILE_LEN,
+ FILE_TIMEOUT, aio_file_cleanup, &arg);
+ aio_write_test(&ac);
+ aio_read_test(&ac);
+
+ aio_file_cleanup(&arg);
+}
+
+struct aio_fifo_arg {
+ int afa_read_fd;
+ int afa_write_fd;
+ char *afa_pathname;
+};
+
+static void
+aio_fifo_cleanup(void *arg)
+{
+ struct aio_fifo_arg *afa;
+
+ afa = arg;
+ if (afa->afa_read_fd != -1)
+ close(afa->afa_read_fd);
+ if (afa->afa_write_fd != -1)
+ close(afa->afa_write_fd);
+ unlink(afa->afa_pathname);
+}
+
+#define FIFO_LEN 256
+#define FIFO_TIMEOUT 30
+ATF_TC_WITHOUT_HEAD(aio_fifo_test);
+ATF_TC_BODY(aio_fifo_test, tc)
+{
+ int error, read_fd = -1, write_fd = -1;
+ struct aio_fifo_arg arg;
+ char pathname[PATH_MAX];
+ struct aio_context ac;
+
+ ATF_REQUIRE_KERNEL_MODULE("aio");
+
+ /*
+ * In theory, mkstemp() can return a name that is then collided with.
+ * Because this is a regression test, we treat that as a test failure
+ * rather than retrying.
+ */
+ strcpy(pathname, PATH_TEMPLATE);
+ ATF_REQUIRE_MSG(mkstemp(pathname) != -1,
+ "mkstemp failed: %s", strerror(errno));
+ ATF_REQUIRE_MSG(unlink(pathname) == 0,
+ "unlink failed: %s", strerror(errno));
+ ATF_REQUIRE_MSG(mkfifo(pathname, 0600) != -1,
+ "mkfifo failed: %s", strerror(errno));
+ arg.afa_pathname = pathname;
+ arg.afa_read_fd = -1;
+ arg.afa_write_fd = -1;
+
+ read_fd = open(pathname, O_RDONLY | O_NONBLOCK);
+ if (read_fd == -1) {
+ error = errno;
+ aio_fifo_cleanup(&arg);
+ errno = error;
+ atf_tc_fail("read_fd open failed: %s",
+ strerror(errno));
+ }
+ arg.afa_read_fd = read_fd;
+
+ write_fd = open(pathname, O_WRONLY);
+ if (write_fd == -1) {
+ error = errno;
+ aio_fifo_cleanup(&arg);
+ errno = error;
+ atf_tc_fail("write_fd open failed: %s",
+ strerror(errno));
+ }
+ arg.afa_write_fd = write_fd;
+
+ aio_context_init(&ac, read_fd, write_fd, FIFO_LEN,
+ FIFO_TIMEOUT, aio_fifo_cleanup, &arg);
+ aio_write_test(&ac);
+ aio_read_test(&ac);
+
+ aio_fifo_cleanup(&arg);
+}
+
+struct aio_unix_socketpair_arg {
+ int asa_sockets[2];
+};
+
+static void
+aio_unix_socketpair_cleanup(void *arg)
+{
+ struct aio_unix_socketpair_arg *asa;
+
+ asa = arg;
+ close(asa->asa_sockets[0]);
+ close(asa->asa_sockets[1]);
+}
+
+#define UNIX_SOCKETPAIR_LEN 256
+#define UNIX_SOCKETPAIR_TIMEOUT 30
+ATF_TC_WITHOUT_HEAD(aio_unix_socketpair_test);
+ATF_TC_BODY(aio_unix_socketpair_test, tc)
+{
+ struct aio_unix_socketpair_arg arg;
+ struct aio_context ac;
+ int sockets[2];
+
+ ATF_REQUIRE_KERNEL_MODULE("aio");
+
+ ATF_REQUIRE_MSG(socketpair(PF_UNIX, SOCK_STREAM, 0, sockets) != -1,
+ "socketpair failed: %s", strerror(errno));
+
+ arg.asa_sockets[0] = sockets[0];
+ arg.asa_sockets[1] = sockets[1];
+ aio_context_init(&ac, sockets[0],
+ sockets[1], UNIX_SOCKETPAIR_LEN, UNIX_SOCKETPAIR_TIMEOUT,
+ aio_unix_socketpair_cleanup, &arg);
+ aio_write_test(&ac);
+ aio_read_test(&ac);
+
+ aio_unix_socketpair_cleanup(&arg);
+}
+
+struct aio_pty_arg {
+ int apa_read_fd;
+ int apa_write_fd;
+};
+
+static void
+aio_pty_cleanup(void *arg)
+{
+ struct aio_pty_arg *apa;
+
+ apa = arg;
+ close(apa->apa_read_fd);
+ close(apa->apa_write_fd);
+};
+
+#define PTY_LEN 256
+#define PTY_TIMEOUT 30
+ATF_TC_WITHOUT_HEAD(aio_pty_test);
+ATF_TC_BODY(aio_pty_test, tc)
+{
+ struct aio_pty_arg arg;
+ struct aio_context ac;
+ int read_fd, write_fd;
+ struct termios ts;
+ int error;
+
+ ATF_REQUIRE_KERNEL_MODULE("aio");
+
+ ATF_REQUIRE_MSG(openpty(&read_fd, &write_fd, NULL, NULL, NULL) == 0,
+ "openpty failed: %s", strerror(errno));
+
+ arg.apa_read_fd = read_fd;
+ arg.apa_write_fd = write_fd;
+
+ if (tcgetattr(write_fd, &ts) < 0) {
+ error = errno;
+ aio_pty_cleanup(&arg);
+ errno = error;
+ atf_tc_fail("tcgetattr failed: %s", strerror(errno));
+ }
+ cfmakeraw(&ts);
+ if (tcsetattr(write_fd, TCSANOW, &ts) < 0) {
+ error = errno;
+ aio_pty_cleanup(&arg);
+ errno = error;
+ atf_tc_fail("tcsetattr failed: %s", strerror(errno));
+ }
+ aio_context_init(&ac, read_fd, write_fd, PTY_LEN,
+ PTY_TIMEOUT, aio_pty_cleanup, &arg);
+
+ aio_write_test(&ac);
+ aio_read_test(&ac);
+
+ aio_pty_cleanup(&arg);
+}
+
+static void
+aio_pipe_cleanup(void *arg)
+{
+ int *pipes = arg;
+
+ close(pipes[0]);
+ close(pipes[1]);
+}
+
+#define PIPE_LEN 256
+#define PIPE_TIMEOUT 30
+ATF_TC_WITHOUT_HEAD(aio_pipe_test);
+ATF_TC_BODY(aio_pipe_test, tc)
+{
+ struct aio_context ac;
+ int pipes[2];
+
+ ATF_REQUIRE_KERNEL_MODULE("aio");
+
+ ATF_REQUIRE_MSG(pipe(pipes) != -1,
+ "pipe failed: %s", strerror(errno));
+
+ aio_context_init(&ac, pipes[0], pipes[1], PIPE_LEN,
+ PIPE_TIMEOUT, aio_pipe_cleanup, pipes);
+ aio_write_test(&ac);
+ aio_read_test(&ac);
+
+ aio_pipe_cleanup(pipes);
+}
+
+struct aio_md_arg {
+ int ama_mdctl_fd;
+ int ama_unit;
+ int ama_fd;
+};
+
+static void
+aio_md_cleanup(void *arg)
+{
+ struct aio_md_arg *ama;
+ struct md_ioctl mdio;
+ int error;
+
+ ama = arg;
+
+ if (ama->ama_fd != -1)
+ close(ama->ama_fd);
+
+ if (ama->ama_unit != -1) {
+ bzero(&mdio, sizeof(mdio));
+ mdio.md_version = MDIOVERSION;
+ mdio.md_unit = ama->ama_unit;
+ if (ioctl(ama->ama_mdctl_fd, MDIOCDETACH, &mdio) == -1) {
+ error = errno;
+ close(ama->ama_mdctl_fd);
+ errno = error;
+ atf_tc_fail("ioctl MDIOCDETACH failed: %s",
+ strerror(errno));
+ }
+ }
+
+ close(ama->ama_mdctl_fd);
+}
+
+#define MD_LEN GLOBAL_MAX
+#define MD_TIMEOUT 30
+ATF_TC(aio_md_test);
+ATF_TC_HEAD(aio_md_test, tc)
+{
+
+ atf_tc_set_md_var(tc, "require.user", "root");
+}
+ATF_TC_BODY(aio_md_test, tc)
+{
+ int error, fd, mdctl_fd, unit;
+ char pathname[PATH_MAX];
+ struct aio_md_arg arg;
+ struct aio_context ac;
+ struct md_ioctl mdio;
+
+ ATF_REQUIRE_KERNEL_MODULE("aio");
+
+ mdctl_fd = open("/dev/" MDCTL_NAME, O_RDWR, 0);
+ ATF_REQUIRE_MSG(mdctl_fd != -1,
+ "opening /dev/%s failed: %s", MDCTL_NAME, strerror(errno));
+
+ bzero(&mdio, sizeof(mdio));
+ mdio.md_version = MDIOVERSION;
+ mdio.md_type = MD_MALLOC;
+ mdio.md_options = MD_AUTOUNIT | MD_COMPRESS;
+ mdio.md_mediasize = GLOBAL_MAX;
+ mdio.md_sectorsize = 512;
+
+ arg.ama_mdctl_fd = mdctl_fd;
+ arg.ama_unit = -1;
+ arg.ama_fd = -1;
+ if (ioctl(mdctl_fd, MDIOCATTACH, &mdio) < 0) {
+ error = errno;
+ aio_md_cleanup(&arg);
+ errno = error;
+ atf_tc_fail("ioctl MDIOCATTACH failed: %s", strerror(errno));
+ }
+
+ arg.ama_unit = unit = mdio.md_unit;
+ snprintf(pathname, PATH_MAX, "/dev/md%d", unit);
+ fd = open(pathname, O_RDWR);
+ ATF_REQUIRE_MSG(fd != -1,
+ "opening %s failed: %s", pathname, strerror(errno));
+ arg.ama_fd = fd;
+
+ aio_context_init(&ac, fd, fd, MD_LEN, MD_TIMEOUT,
+ aio_md_cleanup, &arg);
+ aio_write_test(&ac);
+ aio_read_test(&ac);
+
+ aio_md_cleanup(&arg);
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+ ATF_TP_ADD_TC(tp, aio_file_test);
+ ATF_TP_ADD_TC(tp, aio_fifo_test);
+ ATF_TP_ADD_TC(tp, aio_unix_socketpair_test);
+ ATF_TP_ADD_TC(tp, aio_pty_test);
+ ATF_TP_ADD_TC(tp, aio_pipe_test);
+ ATF_TP_ADD_TC(tp, aio_md_test);
+
+ return (atf_no_error());
+}
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