/*      $NetBSD: t_unmount.c,v 1.4 2024/10/02 17:16:32 bad Exp $        */

/*-
* Copyright (c) 2024 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/cdefs.h>
__COPYRIGHT("@(#) Copyright (c) 2024\
The NetBSD Foundation, inc. All rights reserved.");
__RCSID("$NetBSD: t_unmount.c,v 1.4 2024/10/02 17:16:32 bad Exp $");

#include <sys/types.h>
#include <sys/mount.h>
#include <sys/vnode.h>

#include <rump/rump.h>
#include <rump/rumpvnode_if.h>
#include <rump/rump_syscalls.h>

#include <fs/tmpfs/tmpfs_args.h>

#include <atf-c.h>
#include <errno.h>
#include <stdio.h>

#include "h_macros.h"

ATF_TC(async);
ATF_TC_HEAD(async, tc)
{
       atf_tc_set_md_var(tc,
           "descr", "failed unmount of async fs should stay async");
}

#define MP "/mnt"

ATF_TC_BODY(async, tc)
{
       struct tmpfs_args args;
       struct vnode *vp;
       extern struct vnode *rumpns_rootvnode;

       RZ(rump_init());

       memset(&args, 0, sizeof(args));
       args.ta_version = TMPFS_ARGS_VERSION;
       args.ta_root_mode = 0777;

       /* create mount point and mount a tmpfs on it */
       RL(rump_sys_mkdir(MP, 0777));
       RL(rump_sys_mount(MOUNT_TMPFS, MP, MNT_ASYNC, &args, sizeof(args)));

       /* make sure the tmpfs is busy */
       RL(rump_sys_chdir(MP));

       /* need a stable lwp for componentname */
       RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));

       /* get vnode of MP, unlocked */
       RZ(rump_pub_namei(RUMP_NAMEI_LOOKUP, 0, MP, NULL, &vp, NULL));

       /* make sure we didn't just get the root vnode */
       ATF_REQUIRE_MSG((rumpns_rootvnode != vp), "drat! got the root vnode");

       printf("mnt_iflag & IMNT_ONWORKLIST == %d\n",
           (vp->v_mount->mnt_iflag & IMNT_ONWORKLIST) != 0);

       /* can't unmount a busy file system */
       ATF_REQUIRE_ERRNO(EBUSY, rump_sys_unmount(MP, 0) == -1);

       printf("mnt_iflag & IMNT_ONWORKLIST == %d\n",
           (vp->v_mount->mnt_iflag & IMNT_ONWORKLIST) != 0);


       ATF_REQUIRE_MSG(((vp->v_mount->mnt_iflag & IMNT_ONWORKLIST) == 0),
           "mount point on syncer work list");
}

ATF_TP_ADD_TCS(tp)
{
       ATF_TP_ADD_TC(tp, async);

       return atf_no_error();
}