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/* SPDX-License-Identifier: MIT */
/*
* Description: run various statx(2) tests
*
*/
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/syscall.h>
#include <sys/stat.h>
#include "helpers.h"
#include "liburing.h"
#ifdef __NR_statx
static int do_statx(int dfd, const char *path, int flags, unsigned mask,
struct statx *statxbuf)
{
return syscall(__NR_statx, dfd, path, flags, mask, statxbuf);
}
#else
static int do_statx(int dfd, const char *path, int flags, unsigned mask,
struct statx *statxbuf)
{
errno = ENOSYS;
return -1;
}
#endif
static int statx_syscall_supported(void)
{
return errno == ENOSYS ? 0 : -1;
}
static int test_statx_invalid_buf(struct io_uring *ring, const char *path)
{
struct io_uring_cqe *cqe;
struct io_uring_sqe *sqe;
struct statx *x = (struct statx *) (uintptr_t) 0x1234;
int ret;
sqe = io_uring_get_sqe(ring);
if (!sqe) {
fprintf(stderr, "get sqe failed\n");
goto err;
}
io_uring_prep_statx(sqe, -1, path, 0, STATX_ALL, x);
ret = io_uring_submit(ring);
if (ret <= 0) {
fprintf(stderr, "sqe submit failed: %d\n", ret);
goto err;
}
ret = io_uring_wait_cqe(ring, &cqe);
if (ret < 0) {
fprintf(stderr, "wait completion %d\n", ret);
goto err;
}
ret = cqe->res;
io_uring_cqe_seen(ring, cqe);
if (ret != -EFAULT) {
fprintf(stderr, "Invalid address didn't fail\n");
goto err;
}
return 0;
err:
return -1;
}
static int test_statx_invalid_path(struct io_uring *ring)
{
const char *path = (const char *) (uintptr_t) 0x1234;
struct io_uring_cqe *cqe;
struct io_uring_sqe *sqe;
struct statx x1 = { };
int ret;
sqe = io_uring_get_sqe(ring);
if (!sqe) {
fprintf(stderr, "get sqe failed\n");
goto err;
}
io_uring_prep_statx(sqe, -1, path, 0, STATX_ALL, &x1);
ret = io_uring_submit(ring);
if (ret <= 0) {
fprintf(stderr, "sqe submit failed: %d\n", ret);
goto err;
}
ret = io_uring_wait_cqe(ring, &cqe);
if (ret < 0) {
fprintf(stderr, "wait completion %d\n", ret);
goto err;
}
ret = cqe->res;
io_uring_cqe_seen(ring, cqe);
if (ret != -EFAULT) {
fprintf(stderr, "Invalid address didn't fail\n");
goto err;
}
return 0;
err:
return -1;
}
static int test_statx(struct io_uring *ring, const char *path)
{
struct io_uring_cqe *cqe;
struct io_uring_sqe *sqe;
struct statx x1 = { }, x2 = { };
int ret;
sqe = io_uring_get_sqe(ring);
if (!sqe) {
fprintf(stderr, "get sqe failed\n");
goto err;
}
io_uring_prep_statx(sqe, -1, path, 0, STATX_ALL, &x1);
ret = io_uring_submit(ring);
if (ret <= 0) {
fprintf(stderr, "sqe submit failed: %d\n", ret);
goto err;
}
ret = io_uring_wait_cqe(ring, &cqe);
if (ret < 0) {
fprintf(stderr, "wait completion %d\n", ret);
goto err;
}
ret = cqe->res;
io_uring_cqe_seen(ring, cqe);
if (ret)
return ret;
ret = do_statx(-1, path, 0, STATX_ALL, &x2);
if (ret < 0)
return statx_syscall_supported();
if (memcmp(&x1, &x2, sizeof(x1))) {
fprintf(stderr, "Miscompare between io_uring and statx\n");
goto err;
}
return 0;
err:
return -1;
}
static int test_statx_fd(struct io_uring *ring, const char *path)
{
struct io_uring_cqe *cqe;
struct io_uring_sqe *sqe;
struct statx x1, x2;
int ret, fd;
fd = open(path, O_RDONLY);
if (fd < 0) {
if (errno == EPERM || errno == EACCES)
return 0;
perror("open");
return 1;
}
memset(&x1, 0, sizeof(x1));
sqe = io_uring_get_sqe(ring);
if (!sqe) {
fprintf(stderr, "get sqe failed\n");
goto err;
}
io_uring_prep_statx(sqe, fd, "", AT_EMPTY_PATH, STATX_ALL, &x1);
ret = io_uring_submit(ring);
if (ret <= 0) {
fprintf(stderr, "sqe submit failed: %d\n", ret);
goto err;
}
ret = io_uring_wait_cqe(ring, &cqe);
if (ret < 0) {
fprintf(stderr, "wait completion %d\n", ret);
goto err;
}
ret = cqe->res;
io_uring_cqe_seen(ring, cqe);
if (ret)
return ret;
memset(&x2, 0, sizeof(x2));
ret = do_statx(fd, "", AT_EMPTY_PATH, STATX_ALL, &x2);
if (ret < 0)
return statx_syscall_supported();
if (memcmp(&x1, &x2, sizeof(x1))) {
fprintf(stderr, "Miscompare between io_uring and statx\n");
goto err;
}
return 0;
err:
return -1;
}
int main(int argc, char *argv[])
{
struct io_uring ring;
const char *fname;
int ret;
ret = io_uring_queue_init(8, &ring, 0);
if (ret) {
fprintf(stderr, "ring setup failed\n");
return 1;
}
if (argc > 1) {
fname = argv[1];
} else {
fname = "/tmp/.statx";
t_create_file(fname, 4096);
}
ret = test_statx(&ring, fname);
if (ret) {
if (ret == -EINVAL) {
fprintf(stdout, "statx not supported, skipping\n");
goto done;
}
fprintf(stderr, "test_statx failed: %d\n", ret);
goto err;
}
ret = test_statx_invalid_path(&ring);
if (ret) {
fprintf(stderr, "test_statx_invalid_path failed: %d\n", ret);
goto err;
}
ret = test_statx_invalid_buf(&ring, fname);
if (ret) {
fprintf(stderr, "test_statx_invalid_buf failed: %d\n", ret);
goto err;
}
ret = test_statx_fd(&ring, fname);
if (ret) {
fprintf(stderr, "test_statx_fd failed: %d\n", ret);
goto err;
}
done:
if (fname != argv[1])
unlink(fname);
return 0;
err:
if (fname != argv[1])
unlink(fname);
return 1;
}
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