1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) Huawei Technologies Co., Ltd. 2021. All rights reserved.
4 * Author: Xie Ziyao <xieziyao@huawei.com>
5 */
6
7 /*\
8 * [Description]
9 *
10 * Verify that, epoll_pwait() and epoll_pwait2() return -1 and set errno to
11 * EFAULT with a sigmask points outside user's accessible address space.
12 */
13
14 #include <sys/epoll.h>
15
16 #include "tst_test.h"
17 #include "epoll_pwait_var.h"
18
19 static int efd, sfd[2];
20 static struct epoll_event e;
21 static void *bad_addr;
22
run(void)23 static void run(void)
24 {
25 TST_EXP_FAIL(do_epoll_pwait(efd, &e, 1, -1, bad_addr),
26 EFAULT, "with an invalid sigmask pointer");
27 }
28
setup(void)29 static void setup(void)
30 {
31 epoll_pwait_init();
32
33 SAFE_SOCKETPAIR(AF_UNIX, SOCK_STREAM, 0, sfd);
34
35 efd = epoll_create(1);
36 if (efd == -1)
37 tst_brk(TBROK | TERRNO, "epoll_create()");
38
39 e.events = EPOLLIN;
40 if (epoll_ctl(efd, EPOLL_CTL_ADD, sfd[0], &e))
41 tst_brk(TBROK | TERRNO, "epoll_ctl(..., EPOLL_CTL_ADD, ...)");
42 SAFE_WRITE(SAFE_WRITE_ALL, sfd[1], "w", 1);
43
44 bad_addr = tst_get_bad_addr(NULL);
45 }
46
cleanup(void)47 static void cleanup(void)
48 {
49 if (efd > 0)
50 SAFE_CLOSE(efd);
51
52 if (sfd[0] > 0)
53 SAFE_CLOSE(sfd[0]);
54
55 if (sfd[1] > 0)
56 SAFE_CLOSE(sfd[1]);
57 }
58
59 static struct tst_test test = {
60 .test_all = run,
61 .setup = setup,
62 .cleanup = cleanup,
63 .test_variants = TEST_VARIANTS,
64 };
65