mirror of
https://github.com/openharmony/third_party_liburing.git
synced 2026-07-20 22:58:41 -04:00
fangzhiyi18
119 lines
2.2 KiB
C
119 lines
2.2 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Description: test fsnotify access off O_DIRECT read
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*/
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#include "helpers.h"
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#ifdef CONFIG_HAVE_FANOTIFY
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/fanotify.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include "liburing.h"
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int main(int argc, char *argv[])
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{
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struct io_uring_sqe *sqe;
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struct io_uring_cqe *cqe;
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struct io_uring ring;
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int fan, ret, fd, err;
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char fname[64], *f;
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struct stat sb;
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void *buf;
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fan = fanotify_init(FAN_CLASS_NOTIF|FAN_CLASS_CONTENT, 0);
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if (fan < 0) {
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if (errno == ENOSYS)
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return T_EXIT_SKIP;
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if (geteuid())
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return T_EXIT_SKIP;
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perror("fanotify_init");
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return T_EXIT_FAIL;
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}
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err = T_EXIT_FAIL;
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if (argc > 1) {
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f = argv[1];
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fd = open(argv[1], O_RDONLY | O_DIRECT);
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if (fd < 0 && errno == EINVAL)
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return T_EXIT_SKIP;
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} else {
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sprintf(fname, ".fsnotify.%d", getpid());
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f = fname;
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t_create_file(fname, 8192);
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fd = open(fname, O_RDONLY | O_DIRECT);
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if (fd < 0 && errno == EINVAL) {
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unlink(fname);
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return T_EXIT_SKIP;
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}
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}
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if (fd < 0) {
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perror("open");
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goto out;
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}
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if (fstat(fd, &sb) < 0) {
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perror("fstat");
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goto out;
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}
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if ((sb.st_mode & S_IFMT) != S_IFREG) {
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err = T_EXIT_SKIP;
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close(fd);
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goto out;
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}
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ret = fanotify_mark(fan, FAN_MARK_ADD, FAN_ACCESS|FAN_MODIFY, fd, NULL);
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if (ret < 0) {
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perror("fanotify_mark");
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goto out;
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}
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if (fork()) {
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int wstat;
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io_uring_queue_init(1, &ring, 0);
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if (posix_memalign(&buf, 4096, 4096))
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goto out;
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sqe = io_uring_get_sqe(&ring);
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io_uring_prep_read(sqe, fd, buf, 4096, 0);
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io_uring_submit(&ring);
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ret = io_uring_wait_cqe(&ring, &cqe);
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if (ret) {
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fprintf(stderr, "wait_ret=%d\n", ret);
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goto out;
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}
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wait(&wstat);
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if (!WEXITSTATUS(wstat))
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err = T_EXIT_PASS;
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} else {
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struct fanotify_event_metadata m;
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int fret;
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fret = read(fan, &m, sizeof(m));
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if (fret < 0)
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perror("fanotify read");
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/* fail if mask isn't right or pid indicates non-task context */
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else if (!(m.mask & 1) || !m.pid)
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exit(1);
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exit(0);
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}
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out:
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if (f == fname)
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unlink(fname);
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return err;
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}
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#else /* #ifdef CONFIG_HAVE_FANOTIFY */
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int main(void)
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{
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return T_EXIT_SKIP;
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}
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#endif /* #ifdef CONFIG_HAVE_FANOTIFY */
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