xref: /netbsd-src/sys/compat/linux32/common/linux32_misc.c (revision 2de962bd804263c16657f586aa00f1704045df8e)
1 /*	$NetBSD: linux32_misc.c,v 1.10 2008/04/28 20:23:44 martin Exp $	*/
2 
3 /*-
4  * Copyright (c) 1995, 1998, 1999 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Frank van der Linden and Eric Haszlakiewicz; by Jason R. Thorpe
9  * of the Numerical Aerospace Simulation Facility, NASA Ames Research Center;
10  * by Edgar Fu\ss, Mathematisches Institut der Uni Bonn.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31  * POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 #include <sys/cdefs.h>
35 __KERNEL_RCSID(0, "$NetBSD: linux32_misc.c,v 1.10 2008/04/28 20:23:44 martin Exp $");
36 
37 #include <sys/param.h>
38 #include <sys/proc.h>
39 #include <sys/time.h>
40 #include <sys/types.h>
41 #include <sys/malloc.h>
42 #include <sys/fstypes.h>
43 #include <sys/vfs_syscalls.h>
44 
45 #include <compat/netbsd32/netbsd32.h>
46 #include <compat/netbsd32/netbsd32_syscallargs.h>
47 
48 #include <compat/linux32/common/linux32_types.h>
49 #include <compat/linux32/common/linux32_signal.h>
50 #include <compat/linux32/linux32_syscallargs.h>
51 
52 #include <compat/linux/common/linux_types.h>
53 #include <compat/linux/common/linux_signal.h>
54 #include <compat/linux/common/linux_misc.h>
55 #include <compat/linux/common/linux_statfs.h>
56 #include <compat/linux/linux_syscallargs.h>
57 
58 extern const struct linux_mnttypes linux_fstypes[];
59 extern const int linux_fstypes_cnt;
60 
61 
62 /*
63  * Implement the fs stat functions. Straightforward.
64  */
65 int
66 linux32_sys_statfs(struct lwp *l, const struct linux32_sys_statfs_args *uap, register_t *retval)
67 {
68 	/* {
69 		syscallarg(const netbsd32_charp char) path;
70 		syscallarg(linux32_statfsp) sp;
71 	} */
72 	struct statvfs *sb;
73 	struct linux_statfs ltmp;
74 	int error;
75 
76 	sb = STATVFSBUF_GET();
77 	error = do_sys_pstatvfs(l, SCARG_P32(uap, path), ST_WAIT, sb);
78 	if (error == 0) {
79 		bsd_to_linux_statfs(sb, &ltmp);
80 		error = copyout(&ltmp, SCARG_P32(uap, sp), sizeof ltmp);
81 	}
82 
83 	STATVFSBUF_PUT(sb);
84 	return error;
85 }
86