140 lines
3.5 KiB
C
140 lines
3.5 KiB
C
/* $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();
|
|
}
|