freebsd_file.c revision 1.27 
1/*	$NetBSD: freebsd_file.c,v 1.27 2007/07/13 20:48:39 dsl Exp $	*/
2
3/*
4 * Copyright (c) 1995 Frank van der Linden
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *      This product includes software developed for the NetBSD Project
18 *      by Frank van der Linden
19 * 4. The name of the author may not be used to endorse or promote products
20 *    derived from this software without specific prior written permission
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 *
33 *	from: linux_file.c,v 1.3 1995/04/04 04:21:30 mycroft Exp
34 */
35
36#include <sys/cdefs.h>
37__KERNEL_RCSID(0, "$NetBSD: freebsd_file.c,v 1.27 2007/07/13 20:48:39 dsl Exp $");
38
39#if defined(_KERNEL_OPT)
40#include "fs_nfs.h"
41#endif
42
43#include <sys/param.h>
44#include <sys/systm.h>
45#include <sys/namei.h>
46#include <sys/proc.h>
47#include <sys/file.h>
48#include <sys/stat.h>
49#include <sys/filedesc.h>
50#include <sys/ioctl.h>
51#include <sys/kernel.h>
52#include <sys/mount.h>
53#include <sys/malloc.h>
54
55#include <sys/syscallargs.h>
56
57#include <compat/freebsd/freebsd_syscallargs.h>
58#include <compat/common/compat_util.h>
59
60#define	ARRAY_LENGTH(array)	(sizeof(array)/sizeof(array[0]))
61
62static const char * convert_from_freebsd_mount_type __P((int));
63
64static const char *
65convert_from_freebsd_mount_type(type)
66	int type;
67{
68	static const char * const netbsd_mount_type[] = {
69		NULL,     /*  0 = MOUNT_NONE */
70		"ffs",	  /*  1 = "Fast" Filesystem */
71		"nfs",	  /*  2 = Network Filesystem */
72		"mfs",	  /*  3 = Memory Filesystem */
73		"msdos",  /*  4 = MSDOS Filesystem */
74		"lfs",	  /*  5 = Log-based Filesystem */
75		"lofs",	  /*  6 = Loopback filesystem */
76		"fdesc",  /*  7 = File Descriptor Filesystem */
77		"portal", /*  8 = Portal Filesystem */
78		"null",	  /*  9 = Minimal Filesystem Layer */
79		"umap",	  /* 10 = User/Group Identifier Remapping Filesystem */
80		"kernfs", /* 11 = Kernel Information Filesystem */
81		"procfs", /* 12 = /proc Filesystem */
82		"afs",	  /* 13 = Andrew Filesystem */
83		"cd9660", /* 14 = ISO9660 (aka CDROM) Filesystem */
84		"union",  /* 15 = Union (translucent) Filesystem */
85		NULL,     /* 16 = "devfs" - existing device Filesystem */
86#if 0 /* These filesystems don't exist in FreeBSD */
87		"adosfs", /* ?? = AmigaDOS Filesystem */
88#endif
89	};
90
91	if (type < 0 || type >= ARRAY_LENGTH(netbsd_mount_type))
92		return (NULL);
93	return (netbsd_mount_type[type]);
94}
95
96int
97freebsd_sys_mount(l, v, retval)
98	struct lwp *l;
99	void *v;
100	register_t *retval;
101{
102	struct freebsd_sys_mount_args /* {
103		syscallarg(int) type;
104		syscallarg(char *) path;
105		syscallarg(int) flags;
106		syscallarg(void *) data;
107	} */ *uap = v;
108	const char *type;
109	struct vfsops *vfsops;
110	register_t dummy;
111
112	if ((type = convert_from_freebsd_mount_type(SCARG(uap, type))) == NULL)
113		return ENODEV;
114	vfsops = vfs_getopsbyname(type);
115	if (vfsops == NULL)
116		return ENODEV;
117
118	return do_sys_mount(l, vfsops, NULL, SCARG(uap, path),
119	    SCARG(uap, flags), SCARG(uap, data), UIO_USERSPACE, 0, &dummy);
120}
121
122/* XXX - UNIX domain: int freebsd_sys_bind(int s, void *name, int namelen); */
123/* XXX - UNIX domain: int freebsd_sys_connect(int s, void *name, int namelen); */
124