static void verify_pwritev2(unsigned int n)
{
int i;
char preadbuf[CHUNK];
struct tcase *tc = &tcases[n];
SAFE_PWRITE(1, fd, initbuf, sizeof(initbuf), 0);
SAFE_LSEEK(fd, tc->seek_off, SEEK_SET);
TEST(pwritev2(fd, wr_iovec, tc->count, tc->write_off, 0));
if (TST_RET < 0) {
tst_res(TFAIL | TTERRNO, "pwritev2() failed");
return;
}
if (TST_RET != tc->size) {
tst_res(TFAIL, "pwritev2() wrote %li bytes, expected %zi",
TST_RET, tc->size);
return;
}
if (SAFE_LSEEK(fd, 0, SEEK_CUR) != tc->exp_off) {
tst_res(TFAIL, "pwritev2() had changed file offset");
return;
}
memset(preadbuf, 0, CHUNK);
if (tc->write_off != -1)
SAFE_PREAD(1, fd, preadbuf, tc->size, tc->write_off);
else
SAFE_PREAD(1, fd, preadbuf, tc->size, tc->seek_off);
for (i = 0; i < tc->size; i++) {
if (preadbuf[i] != 0x61)
break;
}
if (i != tc->size) {
tst_res(TFAIL, "buffer wrong at %i have %c expected 'a'",
i, preadbuf[i]);
return;
}
tst_res(TPASS, "pwritev2() wrote %zi bytes successfully "
"with content 'a' expectedly ", tc->size);
}
void verify_preadv(unsigned int n)
{
int i;
char *vec;
struct tcase *tc = &tcases[n];
vec = rd_iovec[0].iov_base;
memset(vec, 0x00, CHUNK);
SAFE_LSEEK(fd, 0, SEEK_SET);
TEST(preadv(fd, rd_iovec, tc->count, tc->offset));
if (TST_RET < 0) {
tst_res(TFAIL | TTERRNO, "Preadv(2) failed");
return;
}
if (TST_RET != tc->size) {
tst_res(TFAIL, "Preadv(2) read %li bytes, expected %zi",
TST_RET, tc->size);
return;
}
for (i = 0; i < tc->size; i++) {
if (vec[i] != tc->content)
break;
}
if (i < tc->size) {
tst_res(TFAIL, "Buffer wrong at %i have %02x expected %02x",
i, vec[i], tc->content);
return;
}
if (SAFE_LSEEK(fd, 0, SEEK_CUR) != 0) {
tst_res(TFAIL, "Preadv(2) has changed file offset");
return;
}
tst_res(TPASS, "Preadv(2) read %zi bytes successfully "
"with content '%c' expectedly", tc->size, tc->content);
}
static void verify_read(void)
{
SAFE_LSEEK(fd, 0, SEEK_SET);
TEST(read(fd, buf, SIZE));
if (TEST_RETURN == -1)
tst_res(TFAIL | TTERRNO, "read(2) failed");
else
tst_res(TPASS, "read(2) returned %ld", TEST_RETURN);
}
static void test_append(void)
{
off_t len1, len2;
TEST(open(TEST_FILE, O_RDWR | O_APPEND, 0777));
if (TEST_RETURN == -1) {
tst_resm(TFAIL | TTERRNO, "open failed");
return;
}
len1 = SAFE_LSEEK(cleanup, TEST_RETURN, 0, SEEK_CUR);
SAFE_WRITE(cleanup, 1, TEST_RETURN, TEST_FILE, sizeof(TEST_FILE));
len2 = SAFE_LSEEK(cleanup, TEST_RETURN, 0, SEEK_CUR);
SAFE_CLOSE(cleanup, TEST_RETURN);
if (len2 > len1)
tst_resm(TPASS, "test O_APPEND for open success");
else
tst_resm(TFAIL, "test O_APPEND for open failed");
}
int main(void)
{
int fd, stdout_fd;
char msg[4096], *pos;
FILE *f;
setup();
/* redirect stdout to file */
stdout_fd = dup(fileno(stdout));
fd = SAFE_OPEN(NULL, OUTPUT_FNAME, O_RDWR | O_CREAT, 0666);
TEST(dup2(fd, fileno(stdout)));
if (TEST_RETURN == -1)
tst_brkm(TBROK | TTERRNO, cleanup, "dup2");
errno = EPERM;
TEST_ERRNO = EPERM;
TEST_RETURN = EINVAL;
tst_resm(TINFO | TRERRNO, "test");
tst_old_flush();
/* restore stdout */
TEST(dup2(stdout_fd, fileno(stdout)));
if (TEST_RETURN == -1)
tst_brkm(TBROK | TTERRNO, cleanup, "dup2");
/* read file and verify that output is as expected */
SAFE_LSEEK(cleanup, fd, 0, SEEK_SET);
f = fdopen(fd, "r");
if (!f)
tst_brkm(TBROK | TERRNO, cleanup, "fdopen");
if (!fgets(msg, sizeof(msg), f))
tst_brkm(TBROK, cleanup, "fgets");
fclose(f);
pos = strchr(msg, '\n');
if (pos != NULL)
*pos = '\0';
tst_resm(TINFO, "%s", msg);
if (strstr(msg, "EPERM"))
tst_resm(TFAIL, "EPERM shouldn't be in TRERRNO output");
if (strstr(msg, "EINVAL"))
tst_resm(TPASS, "EINVAL should be in TRERRNO output");
else
tst_resm(TFAIL, "EINVAL not found in TRERRNO output");
cleanup();
tst_exit();
}
static void check_file_data(const char exp_buf[], size_t size)
{
char rbuf[size];
tst_resm(TINFO, "reading the file, compare with expected buffer");
SAFE_LSEEK(cleanup, fd, 0, SEEK_SET);
SAFE_READ(cleanup, 1, fd, rbuf, size);
if (memcmp(exp_buf, rbuf, size)) {
if (verbose) {
tst_resm_hexd(TINFO, exp_buf, size, "expected:");
tst_resm_hexd(TINFO, rbuf, size, "but read:");
}
tst_brkm(TFAIL, cleanup, "not expected file data");
}
}
int main(int ac, char **av)
{
int lc, i, fail;
char *msg, *vec;
if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL)
tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
setup();
for (lc = 0; TEST_LOOPING(lc); lc++) {
tst_count = 0;
SAFE_LSEEK(cleanup, fd, 0, SEEK_SET);
if (readv(fd, rd_iovec, 0) == -1)
tst_resm(TFAIL | TERRNO, "readv failed unexpectedly");
else
tst_resm(TPASS, "readv read 0 io vectors");
memset(rd_iovec[0].iov_base, 0x00, CHUNK);
if (readv(fd, rd_iovec, 3) != CHUNK) {
tst_resm(TFAIL, "readv failed reading %d bytes, "
"followed by two NULL vectors", CHUNK);
} else {
fail = 0;
vec = rd_iovec[0].iov_base;
for (i = 0; i < CHUNK; i++) {
if (vec[i] != 0x42)
fail++;
}
if (fail)
tst_resm(TFAIL, "Wrong buffer content");
else
tst_resm(TPASS, "readv passed reading %d bytes "
"followed by two NULL vectors", CHUNK);
}
}
cleanup();
tst_exit();
}
void testfunc_append(void)
{
off_t file_offset;
SAFE_FILE_PRINTF(cleanup, TEST_FILE, "test file");
TEST(openat(AT_FDCWD, TEST_FILE, O_APPEND | O_RDWR, 0777));
if (TEST_RETURN == -1) {
tst_resm(TFAIL | TTERRNO, "openat failed");
return;
}
SAFE_WRITE(cleanup, 1, TEST_RETURN, STR, sizeof(STR) - 1);
file_offset = SAFE_LSEEK(cleanup, TEST_RETURN, 0, SEEK_CUR);
if (file_offset > (off_t)(sizeof(STR) - 1))
tst_resm(TPASS, "test O_APPEND for openat success");
else
tst_resm(TFAIL, "test O_APPEND for openat failed");
SAFE_CLOSE(cleanup, TEST_RETURN);
}
int main(int ac, char **av)
{
int lc, i;
int len, stop;
tst_parse_opts(ac, av, NULL, NULL);
setup();
for (lc = 0; TEST_LOOPING(lc); lc++) {
/*
* generate events
*/
fd = SAFE_OPEN(cleanup, fname, O_RDWR);
for (i = 0; i < max_events; i++) {
SAFE_LSEEK(cleanup, fd, 0, SEEK_SET);
SAFE_READ(cleanup, 1, fd, buf, BUF_SIZE);
SAFE_LSEEK(cleanup, fd, 0, SEEK_SET);
SAFE_WRITE(cleanup, 1, fd, buf, BUF_SIZE);
}
SAFE_CLOSE(cleanup, fd);
stop = 0;
while (!stop) {
/*
* get list on events
*/
len = read(fd_notify, event_buf, EVENT_BUF_LEN);
if (len < 0) {
tst_brkm(TBROK | TERRNO, cleanup,
"read(%d, buf, %zu) failed",
fd_notify, EVENT_BUF_LEN);
}
/*
* check events
*/
i = 0;
while (i < len) {
struct inotify_event *event;
event = (struct inotify_event *)&event_buf[i];
if (event->mask != IN_ACCESS &&
event->mask != IN_MODIFY &&
event->mask != IN_OPEN &&
event->mask != IN_Q_OVERFLOW) {
tst_resm(TFAIL,
"get event: wd=%d mask=%x "
"cookie=%u (expected 0) len=%u",
event->wd, event->mask,
event->cookie, event->len);
stop = 1;
break;
}
if (event->mask == IN_Q_OVERFLOW) {
if (event->len != 0 ||
event->cookie != 0 ||
event->wd != -1) {
tst_resm(TFAIL,
"invalid overflow event: "
"wd=%d mask=%x "
"cookie=%u len=%u",
event->wd, event->mask,
event->cookie,
event->len);
stop = 1;
break;
}
if ((int)(i + EVENT_SIZE) != len) {
tst_resm(TFAIL,
"overflow event is not last");
stop = 1;
break;
}
tst_resm(TPASS, "get event: wd=%d "
"mask=%x cookie=%u len=%u",
event->wd, event->mask,
event->cookie, event->len);
stop = 1;
break;
}
i += EVENT_SIZE + event->len;
}
}
}
cleanup();
tst_exit();
}
void *thread_fn_01(void *arg)
{
int i;
unsigned char buf[write_size];
int fd = SAFE_OPEN(fname, O_RDWR);
memset(buf, (intptr_t)arg, write_size);
struct flock64 lck = {
.l_whence = SEEK_SET,
.l_start = 0,
.l_len = 1,
};
for (i = 0; i < writes_num; ++i) {
lck.l_type = F_WRLCK;
my_fcntl(fd, F_OFD_SETLKW, &lck);
SAFE_LSEEK(fd, 0, SEEK_END);
SAFE_WRITE(1, fd, buf, write_size);
lck.l_type = F_UNLCK;
my_fcntl(fd, F_OFD_SETLKW, &lck);
sched_yield();
}
SAFE_CLOSE(fd);
return NULL;
}
static void test01(void)
{
intptr_t i;
int k;
pthread_t id[thread_cnt];
int res[thread_cnt];
unsigned char buf[write_size];
tst_res(TINFO, "write to a file inside threads with OFD locks");
int fd = SAFE_OPEN(fname, O_CREAT | O_TRUNC | O_RDWR, 0600);
memset(res, 0, sizeof(res));
spawn_threads(id, thread_fn_01);
wait_threads(id);
tst_res(TINFO, "verifying file's data");
SAFE_LSEEK(fd, 0, SEEK_SET);
for (i = 0; i < writes_num * thread_cnt; ++i) {
SAFE_READ(1, fd, buf, write_size);
if (buf[0] >= thread_cnt) {
tst_res(TFAIL, "unexpected data read");
return;
}
++res[buf[0]];
for (k = 1; k < write_size; ++k) {
if (buf[0] != buf[k]) {
tst_res(TFAIL, "unexpected data read");
return;
}
}
}
for (i = 0; i < thread_cnt; ++i) {
if (res[i] != writes_num) {
tst_res(TFAIL, "corrupted data found");
return;
}
}
SAFE_CLOSE(fd);
tst_res(TPASS, "OFD locks synchronized access between threads");
}
static void test_partially_valid_iovec(int initial_file_offset)
{
int i, fd;
unsigned char buffer[BUFSIZE], fpattern[BUFSIZE], tmp[BUFSIZE];
long off_after;
struct iovec wr_iovec[] = {
{ buffer, CHUNK },
{ bad_addr, CHUNK },
{ buffer + CHUNK, CHUNK },
{ buffer + CHUNK * 2, CHUNK },
};
tst_res(TINFO, "starting test with initial file offset: %d ",
initial_file_offset);
for (i = 0; i < BUFSIZE; i++)
buffer[i] = i % (CHUNK - 1);
memset(fpattern, 0xff, BUFSIZE);
tst_fill_file(TESTFILE, 0xff, CHUNK, BUFSIZE / CHUNK);
fd = SAFE_OPEN(TESTFILE, O_RDWR, 0644);
SAFE_LSEEK(fd, initial_file_offset, SEEK_SET);
TEST(writev(fd, wr_iovec, ARRAY_SIZE(wr_iovec)));
off_after = (long) SAFE_LSEEK(fd, 0, SEEK_CUR);
/* bad errno */
if (TEST_RETURN == -1 && TEST_ERRNO != EFAULT) {
tst_res(TFAIL | TTERRNO, "unexpected errno");
SAFE_CLOSE(fd);
return;
}
/* nothing has been written */
if (TEST_RETURN == -1 && TEST_ERRNO == EFAULT) {
tst_res(TINFO, "got EFAULT");
/* initial file content remains untouched */
SAFE_LSEEK(fd, 0, SEEK_SET);
SAFE_READ(1, fd, tmp, BUFSIZE);
if (memcmp(tmp, fpattern, BUFSIZE))
tst_res(TFAIL, "file was written to");
else
tst_res(TPASS, "file stayed untouched");
/* offset hasn't changed */
if (off_after == initial_file_offset)
tst_res(TPASS, "offset stayed unchanged");
else
tst_res(TFAIL, "offset changed to %ld",
off_after);
SAFE_CLOSE(fd);
return;
}
/* writev() wrote more bytes than bytes preceding invalid iovec */
tst_res(TINFO, "writev() has written %ld bytes", TEST_RETURN);
if (TEST_RETURN > (long) wr_iovec[0].iov_len) {
tst_res(TFAIL, "writev wrote more than expected");
SAFE_CLOSE(fd);
return;
}
/* file content matches written bytes */
SAFE_LSEEK(fd, initial_file_offset, SEEK_SET);
SAFE_READ(1, fd, tmp, TEST_RETURN);
if (memcmp(tmp, wr_iovec[0].iov_base, TEST_RETURN) == 0) {
tst_res(TPASS, "file has expected content");
} else {
tst_res(TFAIL, "file has unexpected content");
tst_res_hexd(TFAIL, wr_iovec[0].iov_base, TEST_RETURN,
"expected:");
tst_res_hexd(TFAIL, tmp, TEST_RETURN,
"actual file content:");
}
/* file offset has been updated according to written bytes */
if (off_after == initial_file_offset + TEST_RETURN)
tst_res(TPASS, "offset at %ld as expected", off_after);
else
tst_res(TFAIL, "offset unexpected %ld", off_after);
SAFE_CLOSE(fd);
}
/* read_testfile - mmap testfile and read every page.
* This functions measures how many I/O and time it takes to fully
* read contents of test file.
*
* @do_readahead: call readahead prior to reading file content?
* @fname: name of file to test
* @fsize: how many bytes to read/mmap
* @read_bytes: returns difference of bytes read, parsed from /proc/<pid>/io
* @usec: returns how many microsecond it took to go over fsize bytes
* @cached: returns cached kB from /proc/meminfo
*/
static int read_testfile(struct tcase *tc, int do_readahead,
const char *fname, size_t fsize,
unsigned long *read_bytes, long long *usec,
unsigned long *cached)
{
int fd;
size_t i = 0;
long read_bytes_start;
unsigned char *p, tmp;
off_t offset = 0;
fd = SAFE_OPEN(fname, O_RDONLY);
if (do_readahead) {
do {
TEST(tc->readahead(fd, offset, fsize - offset));
if (TST_RET != 0) {
SAFE_CLOSE(fd);
return TST_ERR;
}
i++;
offset += readahead_length;
} while ((size_t)offset < fsize);
tst_res(TINFO, "readahead calls made: %zu", i);
*cached = get_cached_size();
/* offset of file shouldn't change after readahead */
offset = SAFE_LSEEK(fd, 0, SEEK_CUR);
if (offset == 0)
tst_res(TPASS, "offset is still at 0 as expected");
else
tst_res(TFAIL, "offset has changed to: %lu", offset);
}
tst_timer_start(CLOCK_MONOTONIC);
read_bytes_start = get_bytes_read();
p = SAFE_MMAP(NULL, fsize, PROT_READ, MAP_SHARED | MAP_POPULATE, fd, 0);
/* for old kernels, where MAP_POPULATE doesn't work, touch each page */
tmp = 0;
for (i = 0; i < fsize; i += pagesize)
tmp = tmp ^ p[i];
/* prevent gcc from optimizing out loop above */
if (tmp != 0)
tst_brk(TBROK, "This line should not be reached");
if (!do_readahead)
*cached = get_cached_size();
SAFE_MUNMAP(p, fsize);
*read_bytes = get_bytes_read() - read_bytes_start;
tst_timer_stop();
*usec = tst_timer_elapsed_us();
SAFE_CLOSE(fd);
return 0;
}