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      1 /*	$NetBSD: fstest_lfs.c,v 1.8 2020/06/17 00:16:21 kamil Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2010 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 <pthread.h>
     37 #include <semaphore.h>
     38 #include <stdio.h>
     39 #include <stdlib.h>
     40 #include <string.h>
     41 #include <unistd.h>
     42 
     43 #include <ufs/ufs/ufsmount.h>
     44 
     45 #include <rump/rump.h>
     46 #include <rump/rump_syscallshotgun.h>
     47 #include <rump/rump_syscalls.h>
     48 
     49 #include "h_fsmacros.h"
     50 #include "mount_lfs.h"
     51 
     52 struct lfstestargs {
     53 	struct ufs_args ta_uargs;
     54 	pthread_t ta_cleanerthread;
     55 	sem_t ta_cleanerloop;
     56 	char ta_devpath[MAXPATHLEN];
     57 	char ta_imgpath[MAXPATHLEN];
     58 	char ta_mntpath[MAXPATHLEN];
     59 	char ta_hostpath[MAXPATHLEN];
     60 };
     61 
     62 int
     63 lfs_fstest_newfs(const atf_tc_t *tc, void **buf, const char *image, off_t size,
     64 	void *fspriv)
     65 {
     66 	char cmd[1024];
     67 	int res;
     68 	static unsigned int num = 0;
     69 	struct lfstestargs *args;
     70 
     71 	size /= 512;
     72 	snprintf(cmd, 1024, "newfs_lfs -D -F -s %"PRId64" ./%s >/dev/null",
     73 	    size, image);
     74 	res = system(cmd);
     75 	if (res != 0)
     76 		return res;
     77 
     78 	res = rump_init();
     79 	if (res != 0)
     80 		return res;
     81 
     82 	args = calloc(1, sizeof(*args));
     83 	if (args == NULL)
     84 		return -1;
     85 
     86 	strcpy(args->ta_hostpath, image);
     87 	snprintf(args->ta_devpath, MAXPATHLEN, "/dev/device%d.lfs", num);
     88 	snprintf(args->ta_imgpath, MAXPATHLEN, "%s", image);
     89 	args->ta_uargs.fspec = args->ta_devpath;
     90 	sem_init(&args->ta_cleanerloop, 0, 0);
     91 
     92 	res = rump_pub_etfs_register(args->ta_devpath, image, RUMP_ETFS_BLK);
     93 	if (res != 0) {
     94 		free(args);
     95 		return res;
     96 	}
     97 
     98 	*buf = args;
     99 	num++;
    100 
    101 	return 0;
    102 }
    103 
    104 int
    105 lfs_fstest_delfs(const atf_tc_t *tc, void *buf)
    106 {
    107 	int res;
    108 	struct lfstestargs *args = buf;
    109 
    110 	res = rump_pub_etfs_remove(args->ta_devpath);
    111 	if (res != 0)
    112 		return res;
    113 
    114 	res = unlink(args->ta_imgpath);
    115 	if (res != 0)
    116 		return res;
    117 
    118 	pthread_join(args->ta_cleanerthread, NULL);
    119 	free(args);
    120 
    121 	return 0;
    122 }
    123 
    124 static void *
    125 cleaner(void *arg)
    126 {
    127 	char thepath[MAXPATHLEN];
    128 	struct lfstestargs *args = arg;
    129 	const char *the_argv[9];
    130 	char buf[64];
    131 
    132 	rump_pub_lwproc_newlwp(rump_sys_getpid());
    133 
    134 	/* this inspired by the cleaner code.  fixme */
    135 	sprintf(thepath, "/dev/r%s", args->ta_devpath+5);
    136 	rump_pub_etfs_register(thepath, args->ta_hostpath, RUMP_ETFS_CHR);
    137 	sprintf(buf, "%p", &args->ta_cleanerloop);
    138 
    139 	the_argv[0] = "megamaid";
    140 	the_argv[1] = "-D"; /* don't fork() & detach */
    141 	the_argv[2] = "-S";
    142 	the_argv[3] = buf;
    143 	the_argv[4] = "-J";
    144 	the_argv[5] = thepath;
    145 	the_argv[6] = args->ta_mntpath;
    146 	the_argv[7] = NULL;
    147 
    148 	/* xxxatf */
    149 	optind = 1;
    150 	opterr = 1;
    151 
    152 	lfs_cleaner_main(7, __UNCONST(the_argv));
    153 
    154 	rump_pub_lwproc_releaselwp();
    155 
    156 	return NULL;
    157 }
    158 
    159 int
    160 lfs_fstest_mount(const atf_tc_t *tc, void *buf, const char *path, int flags)
    161 {
    162 	struct lfstestargs *args = buf;
    163 	int res;
    164 
    165 	res = rump_sys_mkdir(path, 0777);
    166 	if (res == -1)
    167 		return res;
    168 
    169 	res = rump_sys_mount(MOUNT_LFS, path, flags, &args->ta_uargs,
    170 	    sizeof(args->ta_uargs));
    171 	if (res == -1)
    172 		return res;
    173 
    174 	strcpy(args->ta_mntpath, path);
    175 	res = pthread_create(&args->ta_cleanerthread, NULL, cleaner, args);
    176 	if (res)
    177 		return res;
    178 
    179 	/* wait for cleaner to initialize */
    180 	sem_wait(&args->ta_cleanerloop);
    181 
    182 	return 0;
    183 }
    184 
    185 int
    186 lfs_fstest_unmount(const atf_tc_t *tc, const char *path, int flags)
    187 {
    188 	int res;
    189 
    190 	res = rump_sys_unmount(path, flags);
    191 	if (res == -1) {
    192 		return res;
    193 	}
    194 
    195 	res = rump_sys_rmdir(path);
    196 	return res;
    197 }
    198