t_kevent.c revision 1.2.2.4
1 1.2.2.4 yamt /* $NetBSD: t_kevent.c,v 1.2.2.4 2013/01/16 05:34:00 yamt Exp $ */ 2 1.2.2.2 yamt 3 1.2.2.2 yamt /*- 4 1.2.2.2 yamt * Copyright (c) 2011 The NetBSD Foundation, Inc. 5 1.2.2.2 yamt * All rights reserved. 6 1.2.2.2 yamt * 7 1.2.2.2 yamt * This code is derived from software contributed to The NetBSD Foundatiom 8 1.2.2.2 yamt * by Christos Zoulas. 9 1.2.2.2 yamt * 10 1.2.2.2 yamt * Redistribution and use in source and binary forms, with or without 11 1.2.2.2 yamt * modification, are permitted provided that the following conditions 12 1.2.2.2 yamt * are met: 13 1.2.2.2 yamt * 1. Redistributions of source code must retain the above copyright 14 1.2.2.2 yamt * notice, this list of conditions and the following disclaimer. 15 1.2.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.2.2 yamt * notice, this list of conditions and the following disclaimer in the 17 1.2.2.2 yamt * documentation and/or other materials provided with the distribution. 18 1.2.2.2 yamt * 19 1.2.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2.2.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2.2.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2.2.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2.2.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2.2.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2.2.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2.2.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2.2.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2.2.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2.2.2 yamt * POSSIBILITY OF SUCH DAMAGE. 30 1.2.2.2 yamt */ 31 1.2.2.2 yamt #include <sys/cdefs.h> 32 1.2.2.4 yamt __RCSID("$NetBSD: t_kevent.c,v 1.2.2.4 2013/01/16 05:34:00 yamt Exp $"); 33 1.2.2.2 yamt 34 1.2.2.2 yamt #include <sys/types.h> 35 1.2.2.2 yamt #include <sys/event.h> 36 1.2.2.2 yamt 37 1.2.2.2 yamt #include <atf-c.h> 38 1.2.2.3 yamt #include <errno.h> 39 1.2.2.2 yamt #include <time.h> 40 1.2.2.2 yamt #include <stdio.h> 41 1.2.2.3 yamt #include <stdlib.h> 42 1.2.2.3 yamt #include <string.h> 43 1.2.2.3 yamt #include <unistd.h> 44 1.2.2.4 yamt #include <fcntl.h> 45 1.2.2.3 yamt #include <err.h> 46 1.2.2.4 yamt #include <sys/drvctlio.h> 47 1.2.2.3 yamt #include <sys/event.h> 48 1.2.2.3 yamt #include <sys/time.h> 49 1.2.2.3 yamt #include <sys/socket.h> 50 1.2.2.3 yamt #include <sys/wait.h> 51 1.2.2.2 yamt 52 1.2.2.2 yamt ATF_TC(kevent_zerotimer); 53 1.2.2.2 yamt ATF_TC_HEAD(kevent_zerotimer, tc) 54 1.2.2.2 yamt { 55 1.2.2.2 yamt atf_tc_set_md_var(tc, "descr", "Checks that kevent with a 0 timer " 56 1.2.2.2 yamt "does not crash the system (PR lib/45618)"); 57 1.2.2.2 yamt } 58 1.2.2.2 yamt 59 1.2.2.2 yamt ATF_TC_BODY(kevent_zerotimer, tc) 60 1.2.2.2 yamt { 61 1.2.2.2 yamt struct kevent ev; 62 1.2.2.2 yamt int kq; 63 1.2.2.2 yamt 64 1.2.2.2 yamt ATF_REQUIRE((kq = kqueue()) != -1); 65 1.2.2.2 yamt EV_SET(&ev, 1, EVFILT_TIMER, EV_ADD|EV_ENABLE, 0, 1, 0); 66 1.2.2.2 yamt ATF_REQUIRE(kevent(kq, &ev, 1, NULL, 0, NULL) != -1); 67 1.2.2.2 yamt ATF_REQUIRE(kevent(kq, NULL, 0, &ev, 1, NULL) == 1); 68 1.2.2.2 yamt } 69 1.2.2.2 yamt 70 1.2.2.3 yamt ATF_TC(kqueue_desc_passing); 71 1.2.2.3 yamt ATF_TC_HEAD(kqueue_desc_passing, tc) 72 1.2.2.3 yamt { 73 1.2.2.3 yamt atf_tc_set_md_var(tc, "descr", "Checks that passing a kqueue to " 74 1.2.2.3 yamt "another process does not crash the kernel (PR 46463)"); 75 1.2.2.3 yamt } 76 1.2.2.3 yamt 77 1.2.2.3 yamt ATF_TC_BODY(kqueue_desc_passing, tc) 78 1.2.2.3 yamt { 79 1.2.2.3 yamt pid_t child; 80 1.2.2.3 yamt int s[2], storage, status, kq; 81 1.2.2.3 yamt struct cmsghdr *msg; 82 1.2.2.3 yamt struct iovec iov; 83 1.2.2.3 yamt struct msghdr m; 84 1.2.2.3 yamt struct kevent ev; 85 1.2.2.3 yamt 86 1.2.2.3 yamt ATF_REQUIRE((kq = kqueue()) != -1); 87 1.2.2.3 yamt 88 1.2.2.3 yamt // atf_tc_skip("crashes kernel (PR 46463)"); 89 1.2.2.3 yamt 90 1.2.2.3 yamt ATF_REQUIRE(socketpair(AF_LOCAL, SOCK_STREAM, 0, s) != -1); 91 1.2.2.3 yamt msg = malloc(CMSG_SPACE(sizeof(int))); 92 1.2.2.3 yamt m.msg_iov = &iov; 93 1.2.2.3 yamt m.msg_iovlen = 1; 94 1.2.2.3 yamt m.msg_name = NULL; 95 1.2.2.3 yamt m.msg_namelen = 0; 96 1.2.2.3 yamt m.msg_control = msg; 97 1.2.2.3 yamt m.msg_controllen = CMSG_SPACE(sizeof(int)); 98 1.2.2.3 yamt 99 1.2.2.3 yamt child = fork(); 100 1.2.2.3 yamt if (child == 0) { 101 1.2.2.3 yamt close(s[0]); 102 1.2.2.3 yamt 103 1.2.2.3 yamt iov.iov_base = &storage; 104 1.2.2.3 yamt iov.iov_len = sizeof(int); 105 1.2.2.3 yamt m.msg_iov = &iov; 106 1.2.2.3 yamt m.msg_iovlen = 1; 107 1.2.2.3 yamt 108 1.2.2.3 yamt if (recvmsg(s[1], &m, 0) == -1) 109 1.2.2.3 yamt err(1, "child: could not recvmsg"); 110 1.2.2.3 yamt 111 1.2.2.3 yamt kq = *(int *)CMSG_DATA(msg); 112 1.2.2.3 yamt printf("child (pid %d): received kq fd %d\n", getpid(), kq); 113 1.2.2.3 yamt exit(0); 114 1.2.2.3 yamt } 115 1.2.2.3 yamt 116 1.2.2.3 yamt close(s[1]); 117 1.2.2.3 yamt 118 1.2.2.3 yamt iov.iov_base = &storage; 119 1.2.2.3 yamt iov.iov_len = sizeof(int); 120 1.2.2.3 yamt 121 1.2.2.3 yamt msg->cmsg_level = SOL_SOCKET; 122 1.2.2.3 yamt msg->cmsg_type = SCM_RIGHTS; 123 1.2.2.3 yamt msg->cmsg_len = CMSG_LEN(sizeof(int)); 124 1.2.2.3 yamt 125 1.2.2.3 yamt *(int *)CMSG_DATA(msg) = kq; 126 1.2.2.3 yamt 127 1.2.2.3 yamt EV_SET(&ev, 1, EVFILT_TIMER, EV_ADD|EV_ENABLE, 0, 1, 0); 128 1.2.2.3 yamt ATF_CHECK(kevent(kq, &ev, 1, NULL, 0, NULL) != -1); 129 1.2.2.3 yamt 130 1.2.2.3 yamt printf("parent (pid %d): sending kq fd %d\n", getpid(), kq); 131 1.2.2.3 yamt if (sendmsg(s[0], &m, 0) == -1) { 132 1.2.2.3 yamt ATF_REQUIRE_EQ_MSG(errno, EBADF, "errno is %d", errno); 133 1.2.2.3 yamt atf_tc_skip("PR kern/46523"); 134 1.2.2.3 yamt } 135 1.2.2.3 yamt 136 1.2.2.3 yamt close(kq); 137 1.2.2.3 yamt 138 1.2.2.3 yamt waitpid(child, &status, 0); 139 1.2.2.3 yamt ATF_CHECK(WIFEXITED(status) && WEXITSTATUS(status)==0); 140 1.2.2.3 yamt } 141 1.2.2.3 yamt 142 1.2.2.4 yamt ATF_TC(kqueue_unsupported_fd); 143 1.2.2.4 yamt ATF_TC_HEAD(kqueue_unsupported_fd, tc) 144 1.2.2.4 yamt { 145 1.2.2.4 yamt atf_tc_set_md_var(tc, "descr", "Checks that watching an fd whose" 146 1.2.2.4 yamt " type is not supported does not crash the kernel"); 147 1.2.2.4 yamt } 148 1.2.2.4 yamt 149 1.2.2.4 yamt ATF_TC_BODY(kqueue_unsupported_fd, tc) 150 1.2.2.4 yamt { 151 1.2.2.4 yamt /* mqueue and semaphore use fnullop_kqueue also */ 152 1.2.2.4 yamt int fd, kq; 153 1.2.2.4 yamt struct kevent ev; 154 1.2.2.4 yamt 155 1.2.2.4 yamt fd = open(DRVCTLDEV, O_RDONLY); 156 1.2.2.4 yamt if (fd == -1 && errno == ENOENT) 157 1.2.2.4 yamt atf_tc_skip("no " DRVCTLDEV " available for testing"); 158 1.2.2.4 yamt ATF_REQUIRE(fd != -1); 159 1.2.2.4 yamt ATF_REQUIRE((kq = kqueue()) != -1); 160 1.2.2.4 yamt 161 1.2.2.4 yamt EV_SET(&ev, fd, EVFILT_VNODE, EV_ADD | EV_ENABLE | EV_CLEAR, 162 1.2.2.4 yamt NOTE_DELETE|NOTE_WRITE|NOTE_EXTEND|NOTE_ATTRIB|NOTE_LINK| 163 1.2.2.4 yamt NOTE_RENAME|NOTE_REVOKE, 0, 0); 164 1.2.2.4 yamt 165 1.2.2.4 yamt ATF_REQUIRE(kevent(kq, &ev, 1, NULL, 0, NULL) == -1); 166 1.2.2.4 yamt ATF_REQUIRE_ERRNO(EOPNOTSUPP, true); 167 1.2.2.4 yamt 168 1.2.2.4 yamt (void)close(fd); 169 1.2.2.4 yamt } 170 1.2.2.4 yamt 171 1.2.2.4 yamt 172 1.2.2.2 yamt ATF_TP_ADD_TCS(tp) 173 1.2.2.2 yamt { 174 1.2.2.2 yamt 175 1.2.2.2 yamt ATF_TP_ADD_TC(tp, kevent_zerotimer); 176 1.2.2.3 yamt ATF_TP_ADD_TC(tp, kqueue_desc_passing); 177 1.2.2.4 yamt ATF_TP_ADD_TC(tp, kqueue_unsupported_fd); 178 1.2.2.2 yamt 179 1.2.2.2 yamt return atf_no_error(); 180 1.2.2.2 yamt } 181
Indexes created Tue Sep 30 07:10:03 GMT 2025