1 /* $NetBSD: t_kevent.c,v 1.6 2012/11/29 09:13:44 martin Exp $ */
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundatiom
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
31 #include <sys/cdefs.h>
32 __RCSID("$NetBSD: t_kevent.c,v 1.6 2012/11/29 09:13:44 martin Exp $");
34 #include <sys/types.h>
35 #include <sys/event.h>
47 #include <sys/drvctlio.h>
49 #include <sys/event.h>
51 #include <sys/socket.h>
55 #define DRVCTLDEV "/nonexistent"
58 ATF_TC(kevent_zerotimer);
59 ATF_TC_HEAD(kevent_zerotimer, tc)
61 atf_tc_set_md_var(tc, "descr", "Checks that kevent with a 0 timer "
62 "does not crash the system (PR lib/45618)");
65 ATF_TC_BODY(kevent_zerotimer, tc)
70 ATF_REQUIRE((kq = kqueue()) != -1);
71 EV_SET(&ev, 1, EVFILT_TIMER, EV_ADD|EV_ENABLE, 0, 1, 0);
72 ATF_REQUIRE(kevent(kq, &ev, 1, NULL, 0, NULL) != -1);
73 ATF_REQUIRE(kevent(kq, NULL, 0, &ev, 1, NULL) == 1);
76 ATF_TC(kqueue_desc_passing);
77 ATF_TC_HEAD(kqueue_desc_passing, tc)
79 atf_tc_set_md_var(tc, "descr", "Checks that passing a kqueue to "
80 "another process does not crash the kernel (PR 46463)");
83 ATF_TC_BODY(kqueue_desc_passing, tc)
86 int s[2], storage, status, kq;
92 ATF_REQUIRE((kq = kqueue()) != -1);
94 // atf_tc_skip("crashes kernel (PR 46463)");
96 ATF_REQUIRE(socketpair(AF_LOCAL, SOCK_STREAM, 0, s) != -1);
97 msg = malloc(CMSG_SPACE(sizeof(int)));
103 m.msg_controllen = CMSG_SPACE(sizeof(int));
109 iov.iov_base = &storage;
110 iov.iov_len = sizeof(int);
114 if (recvmsg(s[1], &m, 0) == -1)
115 err(1, "child: could not recvmsg");
118 bcopy(CMSG_DATA(msg), &kq, sizeof(kq));
119 printf("child (pid %d): received kq fd %d\n", getpid(), kq);
122 kq = *(int *)CMSG_DATA(msg);
123 printf("child (pid %d): received kq fd %d\n", getpid(), kq);
130 iov.iov_base = &storage;
131 iov.iov_len = sizeof(int);
133 msg->cmsg_level = SOL_SOCKET;
134 msg->cmsg_type = SCM_RIGHTS;
135 msg->cmsg_len = CMSG_LEN(sizeof(int));
139 * What is should have been
140 * bcopy(&s[0], CMSG_DATA(msg), sizeof(kq));
142 bcopy(&kq, CMSG_DATA(msg), sizeof(kq));
144 *(int *)CMSG_DATA(msg) = kq;
147 EV_SET(&ev, 1, EVFILT_TIMER, EV_ADD|EV_ENABLE, 0, 1, 0);
148 ATF_CHECK(kevent(kq, &ev, 1, NULL, 0, NULL) != -1);
150 printf("parent (pid %d): sending kq fd %d\n", getpid(), kq);
151 if (sendmsg(s[0], &m, 0) == -1) {
153 ATF_REQUIRE_EQ_MSG(errno, EBADF, "errno is %d", errno);
154 atf_tc_skip("PR kern/46523");
157 ATF_REQUIRE_EQ_MSG(errno, EOPNOTSUPP, "errno is %d", errno);
164 waitpid(child, &status, 0);
165 ATF_CHECK(WIFEXITED(status) && WEXITSTATUS(status)==0);
168 ATF_TC(kqueue_unsupported_fd);
169 ATF_TC_HEAD(kqueue_unsupported_fd, tc)
171 atf_tc_set_md_var(tc, "descr", "Checks that watching an fd whose"
172 " type is not supported does not crash the kernel");
175 ATF_TC_BODY(kqueue_unsupported_fd, tc)
177 /* mqueue and semaphore use fnullop_kqueue also */
181 fd = open(DRVCTLDEV, O_RDONLY);
182 if (fd == -1 && errno == ENOENT)
183 atf_tc_skip("no " DRVCTLDEV " available for testing");
184 ATF_REQUIRE(fd != -1);
185 ATF_REQUIRE((kq = kqueue()) != -1);
187 EV_SET(&ev, fd, EVFILT_VNODE, EV_ADD | EV_ENABLE | EV_CLEAR,
188 NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND|NOTE_ATTRIB|NOTE_LINK|
189 NOTE_RENAME|NOTE_REVOKE, 0, 0);
191 ATF_REQUIRE(kevent(kq, &ev, 1, NULL, 0, NULL) == -1);
192 ATF_REQUIRE_ERRNO(EOPNOTSUPP, true);
201 ATF_TP_ADD_TC(tp, kevent_zerotimer);
202 ATF_TP_ADD_TC(tp, kqueue_desc_passing);
203 ATF_TP_ADD_TC(tp, kqueue_unsupported_fd);
205 return atf_no_error();