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authorJens Axboe <axboe@kernel.dk>2020-06-09 19:50:30 -0600
committerJens Axboe <axboe@kernel.dk>2020-06-09 19:50:30 -0600
commit65c90e04ba67d2b19ec7bbb4d684a176fbb316c3 (patch)
tree003267c61f67d0bc7b710a378b43202252d09e33
parent929fedfcb25df9f2dba553c4df7ec2950ac62fc4 (diff)
downloadliburing-65c90e04ba67d2b19ec7bbb4d684a176fbb316c3.tar.gz
liburing-65c90e04ba67d2b19ec7bbb4d684a176fbb316c3.tar.bz2
Add test/close-opath.c
This tests whether we can close an O_PATH opened fd. Test program is an edited version of one from Clay Harris <bugs@claycon.org>, found here: https://claycon.org/software/io_uring/tests/close_opath.c Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--test/Makefile4
-rw-r--r--test/close-opath.c122
2 files changed, 124 insertions, 2 deletions
diff --git a/test/Makefile b/test/Makefile
index 7df550d..93e58f4 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -22,7 +22,7 @@ all_targets += poll poll-cancel ring-leak fsync io_uring_setup io_uring_register
short-read openat2 probe shared-wq personality eventfd \
send_recv eventfd-ring across-fork sq-poll-kthread splice \
lfs-openat lfs-openat-write iopoll d4ae271dfaae-test \
- eventfd-disable
+ eventfd-disable close-opath
include ../Makefile.quiet
@@ -55,7 +55,7 @@ test_srcs := poll.c poll-cancel.c ring-leak.c fsync.c io_uring_setup.c \
madvise.c short-read.c openat2.c probe.c shared-wq.c \
personality.c eventfd.c eventfd-ring.c across-fork.c sq-poll-kthread.c \
splice.c lfs-openat.c lfs-openat-write.c iopoll.c d4ae271dfaae-test.c \
- eventfd-disable.c
+ eventfd-disable.c close-opath.c
ifdef CONFIG_HAVE_STATX
test_srcs += statx.c
diff --git a/test/close-opath.c b/test/close-opath.c
new file mode 100644
index 0000000..884bda9
--- /dev/null
+++ b/test/close-opath.c
@@ -0,0 +1,122 @@
+// SPDX-License-Identifier: MIT
+
+#define _GNU_SOURCE 1
+#define _FILE_OFFSET_BITS 64
+
+// Test program for io_uring IORING_OP_CLOSE with O_PATH file.
+// Author: Clayton Harris <bugs@claycon.org>, 2020-06-07
+
+// linux 5.6.14-300.fc32.x86_64
+// gcc 10.1.1-1.fc32
+// liburing.x86_64 0.5-1.fc32
+
+// gcc -O2 -Wall -Wextra -std=c11 -o close_opath close_opath.c -luring
+// ./close_opath testfilepath
+
+#include <errno.h>
+#include <fcntl.h>
+#include <liburing.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+typedef struct
+{
+ const char *const flnames;
+ const int oflags;
+} oflgs_t;
+
+static int test_io_uring_close(struct io_uring *ring, int fd)
+{
+ struct io_uring_sqe *sqe;
+ struct io_uring_cqe *cqe;
+ int ret;
+
+ sqe = io_uring_get_sqe(ring);
+ if (!sqe) {
+ fprintf(stderr, "io_uring_get_sqe() failed\n");
+ return -ENOENT;
+ }
+
+ io_uring_prep_close(sqe, fd);
+
+ ret = io_uring_submit(ring);
+ if (ret < 0) {
+ fprintf(stderr, "io_uring_submit() failed, errno %d: %s\n",
+ -ret, strerror(-ret));
+ return ret;
+ }
+
+ ret = io_uring_wait_cqe(ring, &cqe);
+ if (ret < 0) {
+ fprintf(stderr, "io_uring_wait_cqe() failed, errno %d: %s\n",
+ -ret, strerror(-ret));
+ return ret;
+ }
+
+ ret = cqe->res;
+ io_uring_cqe_seen(ring, cqe);
+
+ if (ret < 0 && ret != -EOPNOTSUPP) {
+ fprintf(stderr, "io_uring close() failed, errno %d: %s\n",
+ -ret, strerror(-ret));
+ return ret;
+ }
+
+ return 0;
+}
+
+static int open_file(const char *path, const oflgs_t *oflgs)
+{
+ int fd;
+
+ fd = openat(AT_FDCWD, path, oflgs->oflags, 0);
+ if (fd < 0) {
+ int err = errno;
+ fprintf(stderr, "openat(%s, %s) failed, errno %d: %s\n",
+ path, oflgs->flnames, err, strerror(err));
+ return -err;
+ }
+
+ return fd;
+}
+
+int main(int argc, char *argv[])
+{
+ const char *fname = ".";
+ struct io_uring ring;
+ int ret, i;
+ static const oflgs_t oflgs[] = {
+ { "O_RDONLY", O_RDONLY },
+ { "O_PATH", O_PATH }
+ };
+
+ ret = io_uring_queue_init(2, &ring, 0);
+ if (ret < 0) {
+ fprintf(stderr, "io_uring_queue_init() failed, errno %d: %s\n",
+ -ret, strerror(-ret));
+ return 0x02;
+ }
+
+#define OFLGS_SIZE (sizeof(oflgs) / sizeof(oflgs[0]))
+
+ ret = 0;
+ for (i = 0; i < OFLGS_SIZE; i++) {
+ int fd;
+
+ fd = open_file(fname, &oflgs[i]);
+ if (fd < 0) {
+ ret |= 0x02;
+ break;
+ }
+
+ /* Should always succeed */
+ if (test_io_uring_close(&ring, fd) < 0)
+ ret |= 0x04 << i;
+ }
+#undef OFLGS_SIZE
+
+ io_uring_queue_exit(&ring);
+ return ret;
+}