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/* $NetBSD: t_builtin.c,v 1.2 2010/11/03 16:10:23 christos Exp $ */
/*-
* Copyright (c) 2010 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/module.h>
#include <sys/mount.h>
#include <atf-c.h>
#include <fcntl.h>
#include <stdbool.h>
#include <miscfs/kernfs/kernfs.h>
#include <rump/rump.h>
#include <rump/rump_syscalls.h>
#include "../h_macros.h"
#define MYMP "/mnt"
#define HZFILE MYMP "/hz"
static char kernfs[] = "kernfs";
static bool
check_kernfs(void)
{
char buf[16];
bool rv = true;
int fd;
fd = rump_sys_open(HZFILE, O_RDONLY);
if (fd == -1)
return false;
if (rump_sys_read(fd, buf, sizeof(buf)) < 1)
rv = false;
RL(rump_sys_close(fd));
return rv;
}
ATF_TC(disable);
ATF_TC_HEAD(disable, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests that builtin modules can "
"be disabled");
}
ATF_TC_BODY(disable, tc)
{
rump_init();
RL(rump_sys_mkdir(MYMP, 0777));
RL(rump_sys_mount(MOUNT_KERNFS, MYMP, 0, NULL, 0));
ATF_REQUIRE(check_kernfs());
RL(rump_sys_unmount(MYMP, 0));
RL(rump_sys_modctl(MODCTL_UNLOAD, kernfs));
}
ATF_TC(noauto);
ATF_TC_HEAD(noauto, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests that disabled builtin modules "
"will not autoload");
}
ATF_TC_BODY(noauto, tc)
{
rump_init();
RL(rump_sys_mkdir(MYMP, 0777));
RL(rump_sys_modctl(MODCTL_UNLOAD, kernfs));
ATF_REQUIRE_ERRNO(ENODEV,
rump_sys_mount(MOUNT_KERNFS, MYMP, 0, NULL, 0) == -1);
}
ATF_TC(forcereload);
ATF_TC_HEAD(forcereload, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests that disabled builtin modules "
"can be force-reloaded");
}
ATF_TC_BODY(forcereload, tc)
{
struct modctl_load mod;
rump_init();
RL(rump_sys_mkdir(MYMP, 0777));
RL(rump_sys_modctl(MODCTL_UNLOAD, kernfs));
ATF_REQUIRE_ERRNO(ENODEV,
rump_sys_mount(MOUNT_KERNFS, MYMP, 0, NULL, 0) == -1);
memset(&mod, 0, sizeof(mod));
mod.ml_filename = kernfs;
mod.ml_flags = MODCTL_LOAD_FORCE;
RL(rump_sys_modctl(MODCTL_LOAD, &mod));
RL(rump_sys_mount(MOUNT_KERNFS, MYMP, 0, NULL, 0));
ATF_REQUIRE(check_kernfs());
RL(rump_sys_unmount(MYMP, 0));
}
ATF_TC(disabledstat);
ATF_TC_HEAD(disabledstat, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests that disabled builtin modules "
"show up in modstat with refcount -1");
}
ATF_TC_BODY(disabledstat, tc)
{
struct modstat ms[128];
struct iovec iov;
size_t i;
bool found = false;
rump_init();
RL(rump_sys_mkdir(MYMP, 0777));
RL(rump_sys_modctl(MODCTL_UNLOAD, kernfs));
iov.iov_base = ms;
iov.iov_len = sizeof(ms);
RL(rump_sys_modctl(MODCTL_STAT, &iov));
for (i = 0; i < __arraycount(ms); i++) {
if (strcmp(ms[i].ms_name, kernfs) == 0) {
ATF_REQUIRE_EQ(ms[i].ms_refcnt, (u_int)-1);
found = 1;
break;
}
}
ATF_REQUIRE(found);
}
ATF_TC(busydisable);
ATF_TC_HEAD(busydisable, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests that busy builtin modules "
"cannot be disabled");
}
ATF_TC_BODY(busydisable, tc)
{
rump_init();
RL(rump_sys_mkdir(MYMP, 0777));
RL(rump_sys_mount(MOUNT_KERNFS, MYMP, 0, NULL, 0));
ATF_REQUIRE(check_kernfs());
ATF_REQUIRE_ERRNO(EBUSY,
rump_sys_modctl(MODCTL_UNLOAD, kernfs) == -1);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, disable);
ATF_TP_ADD_TC(tp, noauto);
ATF_TP_ADD_TC(tp, forcereload);
ATF_TP_ADD_TC(tp, disabledstat);
ATF_TP_ADD_TC(tp, busydisable);
return atf_no_error();
}
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