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📄 t_access.c(5.03 KB)
📄 t_bind.c(2.37 KB)
📄 t_chroot.c(6.75 KB)
📄 t_clock_gettime.c(6.4 KB)
📄 t_clock_nanosleep.c(2.38 KB)
📄 t_clone.c(5.97 KB)
📄 t_connect.c(3.88 KB)
📄 t_dup.c(8.19 KB)
📄 t_fsync.c(3.05 KB)
📄 t_getcontext.c(4.02 KB)
📄 t_getgroups.c(4.17 KB)
📄 t_getitimer.c(5.41 KB)
📄 t_getlogin.c(5.03 KB)
📄 t_getpid.c(3.13 KB)
📄 t_getrusage.c(4.92 KB)
📄 t_getsid.c(2.96 KB)
📄 t_getsockname.c(2.56 KB)
📄 t_gettimeofday.c(2.64 KB)
📄 t_issetugid.c(3.73 KB)
📄 t_kevent.c(5.15 KB)
📄 t_kill.c(6.3 KB)
📄 t_link.c(5.49 KB)
📄 t_listen.c(3.84 KB)
📄 t_lwp_create.c(7.14 KB)
📄 t_lwp_ctl.c(2.34 KB)
📄 t_mincore.c(9.69 KB)
📄 t_minherit.c(4.68 KB)
📄 t_mkdir.c(5.12 KB)
📄 t_mkfifo.c(5.8 KB)
📄 t_mknod.c(4.95 KB)
📄 t_mlock.c(10.41 KB)
📄 t_mmap.c(14.12 KB)
📄 t_mprotect.c(8.41 KB)
📄 t_msgctl.c(8.06 KB)
📄 t_msgget.c(6.71 KB)
📄 t_msgrcv.c(7.68 KB)
📄 t_msgsnd.c(7.64 KB)
📄 t_msync.c(5.11 KB)
📄 t_nanosleep.c(6.24 KB)
📄 t_pipe.c(4.37 KB)
📄 t_pipe2.c(5.45 KB)
📄 t_poll.c(9.35 KB)
📄 t_posix_fadvise.c(5.82 KB)
📄 t_posix_fallocate.c(2.3 KB)
📄 t_recvmmsg.c(4.88 KB)
📄 t_revoke.c(4.55 KB)
📄 t_select.c(4.88 KB)
📄 t_setrlimit.c(11.54 KB)
📄 t_setuid.c(3.08 KB)
📄 t_sigaction.c(3.91 KB)
📄 t_sigqueue.c(6.02 KB)
📄 t_sigtimedwait.c(3.57 KB)
📄 t_socketpair.c(5.18 KB)
📄 t_stat.c(9.39 KB)
📄 t_swapcontext.c(3.44 KB)
📄 t_timer_create.c(7.47 KB)
📄 t_truncate.c(4.51 KB)
📄 t_ucontext.c(2.17 KB)
📄 t_umask.c(4.18 KB)
📄 t_unlink.c(3.95 KB)
📄 t_wait.c(8.99 KB)
📄 t_wait_noproc.c(7.43 KB)
📄 t_wait_noproc_wnohang.c(1.49 KB)
📄 t_write.c(5.22 KB)

Editing: t_clone.c

/* $NetBSD: t_clone.c,v 1.3 2011/12/12 20:55:44 joerg Exp $ */

/*-
 * Copyright (c) 2008 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Jason R. Thorpe.
 *
 * 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_clone.c,v 1.3 2011/12/12 20:55:44 joerg Exp $");

#include <sys/mman.h>
#include <sys/resource.h>
#include <sys/types.h>
#include <sys/wait.h>

#include <errno.h>
#include <sched.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include <atf-c.h>

#define	STACKSIZE	(8 * 1024)
#define	FROBVAL		41973
#define	CHILDEXIT	0xa5

static int
dummy(void *arg)
{

return 0;
}

static int
clone_func(void *arg)
{
	long *frobp = arg, diff;

printf("child: stack ~= %p, frobme = %p\n", &frobp, frobp);
	fflush(stdout);

if (frobp[0] != getppid())
		return 1;

if (frobp[0] == getpid())
		return 2;

diff = labs(frobp[1] - (long) &frobp);

if (diff > 1024)
		return 3;

frobp[1] = FROBVAL;

return (CHILDEXIT);
}

ATF_TC(clone_basic);
ATF_TC_HEAD(clone_basic, tc)
{

atf_tc_set_md_var(tc, "descr", "Checks clone(2)");
}

ATF_TC_BODY(clone_basic, tc)
{
	sigset_t mask;
	void *allocstack, *stack;
	pid_t pid;
	volatile long frobme[2];
	int stat;

allocstack = mmap(NULL, STACKSIZE, PROT_READ|PROT_WRITE|PROT_EXEC,
	    MAP_PRIVATE|MAP_ANON, -1, (off_t) 0);

ATF_REQUIRE_ERRNO(errno, allocstack != MAP_FAILED);

stack = allocstack;
#ifndef __MACHINE_STACK_GROWS_UP
	stack = (char *)stack + STACKSIZE;
#endif

printf("parent: stack = %p, frobme = %p\n", stack, frobme);
	fflush(stdout);

frobme[0] = (long)getpid();
	frobme[1] = (long)stack;

sigemptyset(&mask);
	sigaddset(&mask, SIGUSR1);

ATF_REQUIRE_ERRNO(errno, sigprocmask(SIG_BLOCK, &mask, NULL) != -1);

switch (pid = __clone(clone_func, stack,
	    CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|SIGUSR1,
	    __UNVOLATILE(frobme))) {
	case 0:
		atf_tc_fail("clone() returned 0");
		/*NOTREACHED*/
	case -1:
		atf_tc_fail("clone() failed: %s", strerror(errno));
		/*NOTREACHED*/
	default:
		while (waitpid(pid, &stat, __WCLONE) != pid)
			continue;
	}

ATF_REQUIRE_MSG(WIFEXITED(stat) != 0, "child didn't exit");

printf("parent: childexit = 0x%x, frobme = %ld\n",
	    WEXITSTATUS(stat), frobme[1]);

switch (WEXITSTATUS(stat)) {
	case CHILDEXIT:
		ATF_REQUIRE_EQ(frobme[1], FROBVAL);
		break;
	case 1:
		atf_tc_fail("child: argument does not contain parent's pid");
		/*NOTREACHED*/
	case 2:
		atf_tc_fail("child: called in parent's pid");
		/*NOTREACHED*/
	case 3:
		atf_tc_fail("child: called with bad stack");
		/*NOTREACHED*/
	default:
		atf_tc_fail("child returned unknown code: %d",
		    WEXITSTATUS(stat));
		/*NOTREACHED*/
	}

ATF_REQUIRE_ERRNO(errno, munmap(allocstack, STACKSIZE) != -1);
}

ATF_TC(clone_null_stack);
ATF_TC_HEAD(clone_null_stack, tc)
{

atf_tc_set_md_var(tc, "descr",
	    "Checks that clone(2) fails when stack pointer is NULL");
}

ATF_TC_BODY(clone_null_stack, tc)
{
	int rv;

rv = __clone(dummy, NULL,
	    CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|SIGCHLD, NULL);

ATF_REQUIRE_EQ(rv, -1);
	ATF_REQUIRE_EQ(errno, EINVAL);
}

ATF_TC(clone_null_func);
ATF_TC_HEAD(clone_null_func, tc)
{

atf_tc_set_md_var(tc, "descr",
	    "Checks that clone(2) fails when function pointer is NULL");
}

ATF_TC_BODY(clone_null_func, tc)
{
	void *allocstack, *stack;
	int rv;

allocstack = mmap(NULL, STACKSIZE, PROT_READ|PROT_WRITE|PROT_EXEC,
	    MAP_PRIVATE|MAP_ANON, -1, (off_t) 0);
	ATF_REQUIRE_ERRNO(errno, allocstack != MAP_FAILED);
	stack = allocstack;
#ifndef __MACHINE_STACK_GROWS_UP
	stack = (char *)stack + STACKSIZE;
#endif

errno = 0;
	rv = __clone(0, stack,
	    CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|SIGCHLD, NULL);

ATF_REQUIRE_EQ(rv, -1);
	ATF_REQUIRE_EQ(errno, EINVAL);

ATF_REQUIRE_ERRNO(errno, munmap(allocstack, STACKSIZE) != -1);
}

ATF_TC(clone_out_of_proc);
ATF_TC_HEAD(clone_out_of_proc, tc)
{

atf_tc_set_md_var(tc, "descr",
		"Checks that clone(2) fails when running out of processes");
	atf_tc_set_md_var(tc, "require.user", "unprivileged");
}

ATF_TC_BODY(clone_out_of_proc, tc)
{
	struct rlimit rl;
	int rv;

ATF_REQUIRE_ERRNO(errno, getrlimit(RLIMIT_NPROC, &rl) != -1);

rl.rlim_cur = 0;
	rl.rlim_max = 0;

ATF_REQUIRE_ERRNO(errno, setrlimit(RLIMIT_NPROC, &rl) != -1);

errno = 0;
	rv = __clone(dummy, malloc(10240),
	    CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|SIGCHLD, (void *)&rl);

ATF_REQUIRE_EQ(rv, -1);
	ATF_REQUIRE_EQ(errno, EAGAIN);
}

ATF_TP_ADD_TCS(tp)
{

ATF_TP_ADD_TC(tp, clone_basic);
	ATF_TP_ADD_TC(tp, clone_null_stack);
	ATF_TP_ADD_TC(tp, clone_null_func);
	ATF_TP_ADD_TC(tp, clone_out_of_proc);

return atf_no_error();
}

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Editing: t_clone.c

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