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fstest_zfs.c revision 1.2 
      1 /*	$NetBSD: fstest_zfs.c,v 1.2 2018/12/16 14:04:14 hannken 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_syscalls.h>
     43 
     44 #include "h_fsmacros.h"
     45 
     46 #define SRVPATH "zfssurvo"
     47 #define SRVURL "unix://" SRVPATH
     48 #define ZFSDEV "/zfsdev"
     49 
     50 int
     51 zfs_fstest_newfs(const atf_tc_t *tc, void **buf, const char *image,
     52 	off_t size, void *fspriv)
     53 {
     54 	int res;
     55 	int fd;
     56 
     57 	/* XXX: hardcoded zfs minimum size */
     58 	size = MAX(64*1024*1024, size);
     59 
     60 	res = rump_init();
     61 	if (res != 0) {
     62 		errno = res;
     63 		return -1;
     64 	}
     65 
     66 	/* create backing image, sparse file is enough */
     67 	if ((fd = open(image, O_RDWR | O_CREAT, 0777)) == -1)
     68 		return -1;
     69 	if (ftruncate(fd, size) == -1) {
     70 		close(fd);
     71 		return -1;
     72 	}
     73 	close(fd);
     74 
     75 	res = rump_pub_etfs_register(ZFSDEV, image, RUMP_ETFS_BLK);
     76 	if (res != 0) {
     77 		errno = res;
     78 		return -1;
     79 	}
     80 
     81 	res = rump_init_server(SRVURL);
     82 	if (res != 0) {
     83 		errno = res;
     84 		return -1;
     85 	}
     86 	*buf = NULL;
     87 
     88 	return 0;
     89 }
     90 
     91 int
     92 zfs_fstest_delfs(const atf_tc_t *tc, void *buf)
     93 {
     94 
     95 	unlink(SRVPATH);
     96 	return 0;
     97 }
     98 
     99 int
    100 zfs_fstest_mount(const atf_tc_t *tc, void *buf, const char *path, int flags)
    101 {
    102 	char tmpbuf[128];
    103 	int error;
    104 
    105 	/* set up the hijack env for running zpool */
    106 	setenv("RUMP_SERVER", SRVURL, 1);
    107 	snprintf(tmpbuf, sizeof(tmpbuf)-1,
    108 	    "blanket=/dev/zfs:%s:%s,sysctl=yes,modctl=yes", ZFSDEV, path);
    109 	setenv("RUMPHIJACK", tmpbuf, 1);
    110 	setenv("LD_PRELOAD", "/usr/lib/librumphijack.so", 1);
    111 
    112 	while (*path == '/')
    113 		path++;
    114 
    115 	/* run zpool create */
    116 	snprintf(tmpbuf, sizeof(tmpbuf)-1, "zpool create %s %s",
    117 	    path, ZFSDEV);
    118 	if ((error = system(tmpbuf)) != 0) {
    119 		errno = error;
    120 		return -1;
    121 	}
    122 
    123 	return 0;
    124 }
    125 
    126 int
    127 zfs_fstest_unmount(const atf_tc_t *tc, const char *path, int flags)
    128 {
    129 
    130 	unmount(path, flags);
    131 	unlink(SRVPATH);
    132 
    133 	return 0;
    134 }
    135