rump_lfs.c revision 1.12 
1/*	$NetBSD: rump_lfs.c,v 1.12 2009/11/05 14:17:07 pooka Exp $	*/
2
3/*
4 * Copyright (c) 2008 Antti Kantee.  All Rights Reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#include <sys/types.h>
29#include <sys/mount.h>
30
31#include <ufs/ufs/ufsmount.h>
32
33#include <err.h>
34#include <pthread.h>
35#include <stdio.h>
36#include <stdlib.h>
37#include <unistd.h>
38
39#include <rump/rump.h>
40#include <rump/p2k.h>
41#include <rump/ukfs.h>
42
43#include "mount_lfs.h"
44
45static void *
46cleaner(void *arg)
47{
48	const char *the_argv[7];
49
50	the_argv[0] = "megamaid";
51	the_argv[1] = "-D"; /* don't fork() & detach */
52	the_argv[2] = arg;
53
54	lfs_cleaner_main(3, __UNCONST(the_argv));
55
56	return NULL;
57}
58
59int
60main(int argc, char *argv[])
61{
62	struct ufs_args args;
63	char canon_dev[UKFS_PARTITION_MAXPATHLEN], canon_dir[MAXPATHLEN];
64	char rawdev[MAXPATHLEN];
65	struct p2k_mount *p2m;
66	pthread_t cleanerthread;
67	int mntflags, part;
68	int rv;
69
70	setprogname(argv[0]);
71
72	UKFS_PARTITION_ARGVPROBE(part);
73	if (part != UKFS_PARTITION_NONE) {
74		errx(1, "lfs does not currently support embedded partitions");
75	}
76	mount_lfs_parseargs(argc, argv, &args, &mntflags, canon_dev, canon_dir);
77
78	p2m = p2k_init(0);
79	if (!p2m)
80		err(1, "init p2k");
81	/*
82	 * XXX: this particular piece inspired by the cleaner code.
83	 * obviously FIXXXME along with the cleaner.
84	 */
85	sprintf(rawdev, "/dev/r%s", canon_dev+5);
86	rump_pub_etfs_register(rawdev, canon_dev, RUMP_ETFS_CHR);
87
88	/*
89	 * We basically have two choices:
90	 *  1) run the cleaner in another process and do rump ipc syscalls
91	 *  2) run it off a thread in this process and do rump syscalls
92	 *     as function calls.
93	 *
94	 * opt for "2" for now
95	 */
96#ifdef CLEANER_TESTING
97	ukfs_mount(MOUNT_LFS, canon_dev, canon_dir, mntflags,
98	    &args, sizeof(args));
99	cleaner(canon_dir);
100#endif
101	if (p2k_setup_diskfs(p2m, MOUNT_LFS, canon_dev, part, canon_dir,
102	    mntflags, &args, sizeof(args)) == -1)
103		err(1, "mount");
104
105#ifndef CLEANER_TESTING
106	if ((mntflags & MNT_RDONLY) == 0) {
107		if (pthread_create(&cleanerthread, NULL,
108		    cleaner, canon_dir) == -1)
109			err(1, "cannot start cleaner");
110	}
111#endif
112
113	rv = p2k_mainloop(p2m);
114	if (rv == -1)
115		err(1, "fs service");
116
117	return 0;
118}
119