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      1 /*	$NetBSD: fstest_zfs.c,v 1.3 2020/06/17 00:16:21 kamil Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2010, 2011  The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Nicolas Joly.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/mount.h>
     33 #include <sys/stat.h>
     34 
     35 #include <atf-c.h>
     36 #include <stdio.h>
     37 #include <stdlib.h>
     38 #include <string.h>
     39 #include <unistd.h>
     40 
     41 #include <rump/rump.h>
     42 #include <rump/rump_syscallshotgun.h>
     43 #include <rump/rump_syscalls.h>
     44 
     45 #include "h_fsmacros.h"
     46 
     47 #define SRVPATH "zfssurvo"
     48 #define SRVURL "unix://" SRVPATH
     49 #define ZFSDEV "/zfsdev"
     50 
     51 int
     52 zfs_fstest_newfs(const atf_tc_t *tc, void **buf, const char *image,
     53 	off_t size, void *fspriv)
     54 {
     55 	int res;
     56 	int fd;
     57 
     58 	/* XXX: hardcoded zfs minimum size */
     59 	size = MAX(64*1024*1024, size);
     60 
     61 	res = rump_init();
     62 	if (res != 0) {
     63 		errno = res;
     64 		return -1;
     65 	}
     66 
     67 	/* create backing image, sparse file is enough */
     68 	if ((fd = open(image, O_RDWR | O_CREAT, 0777)) == -1)
     69 		return -1;
     70 	if (ftruncate(fd, size) == -1) {
     71 		close(fd);
     72 		return -1;
     73 	}
     74 	close(fd);
     75 
     76 	res = rump_pub_etfs_register(ZFSDEV, image, RUMP_ETFS_BLK);
     77 	if (res != 0) {
     78 		errno = res;
     79 		return -1;
     80 	}
     81 
     82 	res = rump_init_server(SRVURL);
     83 	if (res != 0) {
     84 		errno = res;
     85 		return -1;
     86 	}
     87 	*buf = NULL;
     88 
     89 	return 0;
     90 }
     91 
     92 int
     93 zfs_fstest_delfs(const atf_tc_t *tc, void *buf)
     94 {
     95 
     96 	unlink(SRVPATH);
     97 	return 0;
     98 }
     99 
    100 int
    101 zfs_fstest_mount(const atf_tc_t *tc, void *buf, const char *path, int flags)
    102 {
    103 	char tmpbuf[128];
    104 	int error;
    105 
    106 	/* set up the hijack env for running zpool */
    107 	setenv("RUMP_SERVER", SRVURL, 1);
    108 	snprintf(tmpbuf, sizeof(tmpbuf)-1,
    109 	    "blanket=/dev/zfs:%s:%s,sysctl=yes,modctl=yes", ZFSDEV, path);
    110 	setenv("RUMPHIJACK", tmpbuf, 1);
    111 	setenv("LD_PRELOAD", "/usr/lib/librumphijack.so", 1);
    112 
    113 	while (*path == '/')
    114 		path++;
    115 
    116 	/* run zpool create */
    117 	snprintf(tmpbuf, sizeof(tmpbuf)-1, "zpool create %s %s",
    118 	    path, ZFSDEV);
    119 	if ((error = system(tmpbuf)) != 0) {
    120 		errno = error;
    121 		return -1;
    122 	}
    123 
    124 	return 0;
    125 }
    126 
    127 int
    128 zfs_fstest_unmount(const atf_tc_t *tc, const char *path, int flags)
    129 {
    130 
    131 	unmount(path, flags);
    132 	unlink(SRVPATH);
    133 
    134 	return 0;
    135 }
    136