1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) 2019 Federico Bonfiglio <[email protected]>
4 * Copyright (c) Linux Test Project, 2022
5 */
6
7 /*\
8 * [Description]
9 *
10 * Test ioctl_ns with NS_GET_* request for file descriptors
11 * that aren't namespaces.
12 *
13 * Calling ioctl with test directory's file descriptor
14 * should make the call fail with ENOTTY.
15 */
16
17 #define _GNU_SOURCE
18
19 #include <errno.h>
20 #include "tst_test.h"
21 #include "lapi/ioctl_ns.h"
22
23 static int requests[] = {NS_GET_PARENT, NS_GET_USERNS,
24 NS_GET_OWNER_UID, NS_GET_NSTYPE};
25
test_request(unsigned int n)26 static void test_request(unsigned int n)
27 {
28 int request = requests[n];
29 int fd, ns_fd;
30
31 fd = SAFE_OPEN(".", O_RDONLY);
32 ns_fd = ioctl(fd, request);
33 if (ns_fd == -1) {
34 if (errno == ENOTTY)
35 tst_res(TPASS, "request failed with ENOTTY");
36 else
37 tst_res(TFAIL | TERRNO, "unexpected ioctl error");
38 } else {
39 tst_res(TFAIL, "request success for invalid fd");
40 SAFE_CLOSE(ns_fd);
41 }
42 SAFE_CLOSE(fd);
43 }
44
45 static struct tst_test test = {
46 .tcnt = ARRAY_SIZE(requests),
47 .test = test_request,
48 .needs_tmpdir = 1,
49 .min_kver = "4.11"
50 };
51