NetBSD/tests/rump/rumpkern/t_modcmd.c

112 lines
3.5 KiB
C

/* $NetBSD: t_modcmd.c,v 1.4 2009/11/06 15:26:54 pooka Exp $ */
/*
* Copyright (c) 2009 The NetBSD Foundation, Inc.
* All rights reserved.
*
* 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/types.h>
#include <sys/mount.h>
#include <rump/rump.h>
#include <rump/rump_syscalls.h>
#include <fs/tmpfs/tmpfs_args.h>
#include <atf-c.h>
#include <dlfcn.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <util.h>
#include "../../h_macros.h"
/*
* We verify that modules can be loaded and unloaded.
* tmpfs was chosen because it does not depend on an image.
*/
ATF_TC(cmsg_modcmd);
ATF_TC_HEAD(cmsg_modcmd, tc)
{
atf_tc_set_md_var(tc, "descr", "Checks that loading and unloading "
"a module (vfs/tmpfs) is possible");
}
#define TMPFSMODULE "librumpfs_tmpfs.so"
ATF_TC_BODY(cmsg_modcmd, tc)
{
struct tmpfs_args args;
struct modinfo **mi;
void *handle;
int rv;
rump_init();
memset(&args, 0, sizeof(args));
args.ta_version = TMPFS_ARGS_VERSION;
args.ta_root_mode = 0777;
if (rump_sys_mkdir("/mp", 0777) == -1)
atf_tc_fail_errno("mkdir mountpoint");
if (rump_sys_mount(MOUNT_TMPFS, "/mp", 0, &args, sizeof(args)) != -1)
atf_tc_fail("mount unexpectedly succeeded");
handle = dlopen(TMPFSMODULE, RTLD_GLOBAL);
if (handle == NULL) {
const char *dlmsg = dlerror();
atf_tc_fail("cannot open %s: %s", TMPFSMODULE, dlmsg);
}
mi = dlsym(handle, "__start_link_set_modules");
if (mi == NULL)
atf_tc_fail("cannot find module info");
if ((rv = rump_pub_module_init(*mi, NULL)) != 0)
atf_tc_fail("module init failed: %d (%s)", rv, strerror(rv));
if (rump_sys_mount(MOUNT_TMPFS, "/mp", 0, &args, sizeof(args)) == -1)
atf_tc_fail_errno("still cannot mount");
if (rump_sys_unmount("/mp", 0) == -1)
atf_tc_fail("cannot unmount");
if ((rv = rump_pub_module_fini(*mi)) != 0)
atf_tc_fail("module fini failed: %d (%s)", rv, strerror(rv));
if (dlclose(handle)) {
const char *dlmsg = dlerror();
atf_tc_fail("cannot close %s: %s", TMPFSMODULE, dlmsg);
}
if (rump_sys_mount(MOUNT_TMPFS, "/mp", 0, &args, sizeof(args)) != -1)
atf_tc_fail("mount unexpectedly succeeded");
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, cmsg_modcmd);
return atf_no_error();
}