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File: [cvs.NetBSD.org] / src / tests / kernel / kqueue / t_proc2.c (download)

Revision 1.1, Fri Feb 20 21:39:57 2009 UTC (13 years, 3 months ago) by jmmv
Branch: MAIN
CVS Tags: yamt-pagecache-tag8, yamt-pagecache-base9, yamt-pagecache-base8, yamt-pagecache-base7, yamt-pagecache-base6, yamt-pagecache-base5, yamt-pagecache-base4, yamt-pagecache-base3, yamt-pagecache-base2, yamt-pagecache-base, yamt-pagecache, tls-maxphys-base, tls-maxphys, tls-earlyentropy-base, tls-earlyentropy, riastradh-xf86-video-intel-2-7-1-pre-2-21-15, riastradh-drm2-base3, riastradh-drm2-base2, riastradh-drm2-base1, riastradh-drm2-base, riastradh-drm2, netbsd-7-nhusb-base-20170116, netbsd-7-nhusb-base, netbsd-7-nhusb, netbsd-7-base, netbsd-7-2-RELEASE, netbsd-7-1-RELEASE, netbsd-7-1-RC2, netbsd-7-1-RC1, netbsd-7-1-2-RELEASE, netbsd-7-1-1-RELEASE, netbsd-7-1, netbsd-7-0-RELEASE, netbsd-7-0-RC3, netbsd-7-0-RC2, netbsd-7-0-RC1, netbsd-7-0-2-RELEASE, netbsd-7-0-1-RELEASE, netbsd-7-0, netbsd-7, netbsd-6-base, netbsd-6-1-RELEASE, netbsd-6-1-RC4, netbsd-6-1-RC3, netbsd-6-1-RC2, netbsd-6-1-RC1, netbsd-6-1-5-RELEASE, netbsd-6-1-4-RELEASE, netbsd-6-1-3-RELEASE, netbsd-6-1-2-RELEASE, netbsd-6-1-1-RELEASE, netbsd-6-1, netbsd-6-0-RELEASE, netbsd-6-0-RC2, netbsd-6-0-RC1, netbsd-6-0-6-RELEASE, netbsd-6-0-5-RELEASE, netbsd-6-0-4-RELEASE, netbsd-6-0-3-RELEASE, netbsd-6-0-2-RELEASE, netbsd-6-0-1-RELEASE, netbsd-6-0, netbsd-6, matt-premerge-20091211, matt-nb6-plus-nbase, matt-nb6-plus-base, matt-nb6-plus, matt-mips64-premerge-20101231, jym-xensuspend-nbase, jym-xensuspend-base, cherry-xenmp-base, cherry-xenmp, bouyer-quota2-nbase, bouyer-quota2-base, bouyer-quota2, agc-symver-base, agc-symver
Branch point for: jym-xensuspend

Add the kernel-level tests developed by Lukasz Strzygowski as part of the
atfify GSoC 2008 project.

/* $NetBSD: t_proc2.c,v 1.1 2009/02/20 21:39:57 jmmv 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 1.1 2009/02/20 21:39:57 jmmv 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, 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();
}