diff options
Diffstat (limited to 'contrib/netbsd-tests/kernel/kqueue/t_proc2.c')
| -rw-r--r-- | contrib/netbsd-tests/kernel/kqueue/t_proc2.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/kernel/kqueue/t_proc2.c b/contrib/netbsd-tests/kernel/kqueue/t_proc2.c new file mode 100644 index 000000000000..2d905ed740d9 --- /dev/null +++ b/contrib/netbsd-tests/kernel/kqueue/t_proc2.c @@ -0,0 +1,139 @@ +/* $NetBSD: t_proc2.c,v 1.3 2017/01/13 21:30:41 christos Exp $ */ + +/*- + * Copyright (c) 2008 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Peter Werner <Peter.Werner@wgsn.com>. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__COPYRIGHT("@(#) Copyright (c) 2008\ + The NetBSD Foundation, inc. All rights reserved."); +__RCSID("$NetBSD: t_proc2.c,v 1.3 2017/01/13 21:30:41 christos Exp $"); + +#include <sys/event.h> +#include <sys/time.h> +#include <sys/types.h> +#include <sys/wait.h> + +#include <err.h> +#include <pwd.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#include <atf-c.h> + +#include "h_macros.h" + +static void +child_two(void) +{ + _exit(EXIT_SUCCESS); +} + +static void +child_one(void) +{ + pid_t pid; + struct passwd *pwd; + const char *nam = "nobody"; + + pwd = getpwnam(nam); + if (pwd == NULL) + err(EXIT_FAILURE, "getpwnam(\"%s\")", nam); + + if ((setuid(pwd->pw_uid)) == -1) + err(EXIT_FAILURE, "setuid(%d)", pwd->pw_uid); + + pid = fork(); + if (pid == -1) + err(EXIT_FAILURE, "fork()"); + + if (pid == 0) + child_two(); + + _exit(EXIT_SUCCESS); +} + +ATF_TC(proc2); +ATF_TC_HEAD(proc2, tc) +{ + atf_tc_set_md_var(tc, "require.user", "root"); + atf_tc_set_md_var(tc, "descr", + "Checks EVFILT_PROC for NOTE_FORK|NOTE_TRACK error path problem " + "fixed in rev. 1.1.1.1.2.17 of sys/kern/kern_event.c"); +} +ATF_TC_BODY(proc2, tc) +{ + pid_t pid = 0; + int kq, status; + struct kevent ke; + struct timespec timeout; + + RL(kq = kqueue()); + + timeout.tv_sec = 0; + timeout.tv_nsec = 0; + + RL(pid = fork()); + if (pid == 0) { + (void)sleep(1); /* let parent set kevent */ + child_one(); + /* NOTREACHED */ + } + + EV_SET(&ke, (uintptr_t)pid, EVFILT_PROC, EV_ADD, NOTE_FORK|NOTE_TRACK, + 0, 0); + + RL(kevent(kq, &ke, 1, NULL, 0, &timeout)); + + (void)sleep(2); + + ke.ident = 0; + ke.fflags = 0; + ke.flags = EV_ENABLE; + + RL(kevent(kq, NULL, 0, &ke, 1, &timeout)); + RL(close(kq)); + + RL(waitpid(pid, &status, 0)); + ATF_REQUIRE(WIFEXITED(status)); + ATF_REQUIRE_EQ(WEXITSTATUS(status), EXIT_SUCCESS); + + /* + * we are expecting an error here as we should not have + * been able to add a knote to child 2. + */ + ATF_REQUIRE(ke.fflags & NOTE_TRACKERR); +} + +ATF_TP_ADD_TCS(tp) +{ + ATF_TP_ADD_TC(tp, proc2); + + return atf_no_error(); +} |