1 /* $NetBSD: rumpvfs_compat50.c,v 1.2 2016/01/26 23:12:18 pooka Exp $ */
2
3 /*
4 * Copyright (c) 2009 Antti Kantee. All Rights Reserved.
5 *
6 * Development of this software was supported by the Nokia Foundation
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
18 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #include <sys/cdefs.h>
31 __KERNEL_RCSID(0, "$NetBSD: rumpvfs_compat50.c,v 1.2 2016/01/26 23:12:18 pooka Exp $");
32
33 #include <sys/param.h>
34 #include <sys/kmem.h>
35 #include <sys/sched.h>
36 #include <sys/syscallargs.h>
37 #include <sys/vnode.h>
38
39 #include <compat/sys/time.h>
40
41 #include <rump-sys/vfs.h>
42
43 #include <rump/rump.h>
44
45 /*
46 * XXX: these are handwritten for now. They provide compat for
47 * calling post-time_t file systems from a pre-time_t userland.
48 * (mknod is missing. I don't care very much)
49 *
50 * Doing remote system calls with these does not (obviously) work.
51 */
52 #if BYTE_ORDER == BIG_ENDIAN
53 #define SPARG(p,k) ((p)->k.be.datum)
54 #else /* LITTLE_ENDIAN, I hope dearly */
55 #define SPARG(p,k) ((p)->k.le.datum)
56 #endif
57
58 struct vattr50 {
59 enum vtype va_type; /* vnode type (for create) */
60 mode_t va_mode; /* files access mode and type */
61 nlink_t va_nlink; /* number of references to file */
62 uid_t va_uid; /* owner user id */
63 gid_t va_gid; /* owner group id */
64 u_long va_fsid; /* file system id (dev for now) */
65 ino_t va_fileid; /* file id */
66 u_quad_t va_size; /* file size in bytes */
67 long va_blocksize; /* blocksize preferred for i/o */
68 struct timespec50 va_atime; /* time of last access */
69 struct timespec50 va_mtime; /* time of last modification */
70 struct timespec50 va_ctime; /* time file changed */
71 struct timespec50 va_birthtime; /* time file created */
72 u_long va_gen; /* generation number of file */
73 u_long va_flags; /* flags defined for file */
74 uint32_t va_rdev; /* device the special file represents */
75 u_quad_t va_bytes; /* bytes of disk space held by file */
76 u_quad_t va_filerev; /* file modification number */
77 u_int va_vaflags; /* operations flags, see below */
78 long va_spare; /* remain quad aligned */
79 };
80
81 /*
82 * XXX: types. But I don't want to start playing compat games in
83 * the userspace namespace too
84 */
85 void
rump_vattr50_to_vattr(const struct vattr * _va50,struct vattr * va)86 rump_vattr50_to_vattr(const struct vattr *_va50, struct vattr *va)
87 {
88 const struct vattr50 *va50 = (const struct vattr50 *)_va50;
89
90 va->va_type = va50->va_type;
91 va->va_mode = va50->va_mode;
92 va->va_nlink = va50->va_nlink;
93 va->va_uid = va50->va_uid;
94 va->va_gid = va50->va_gid;
95 va->va_fsid = (long)va50->va_fsid;
96 va->va_fileid = va50->va_fileid;
97 va->va_size = va50->va_size;
98 va->va_blocksize = va50->va_blocksize;
99 timespec50_to_timespec(&va50->va_atime, &va->va_atime);
100 timespec50_to_timespec(&va50->va_ctime, &va->va_ctime);
101 timespec50_to_timespec(&va50->va_mtime, &va->va_mtime);
102 timespec50_to_timespec(&va50->va_birthtime, &va->va_birthtime);
103 va->va_gen = va50->va_gen;
104 va->va_flags = va50->va_flags;
105 va->va_rdev = (int32_t)va50->va_rdev;
106 va->va_bytes = va50->va_bytes;
107 va->va_filerev = va50->va_filerev;
108 va->va_vaflags = va50->va_flags;
109 }
110
111 void
rump_vattr_to_vattr50(const struct vattr * va,struct vattr * _va50)112 rump_vattr_to_vattr50(const struct vattr *va, struct vattr *_va50)
113 {
114 struct vattr50 *va50 = (struct vattr50 *)_va50;
115
116 va50->va_type = va->va_type;
117 va50->va_mode = va->va_mode;
118 va50->va_nlink = va->va_nlink;
119 va50->va_uid = va->va_uid;
120 va50->va_gid = va->va_gid;
121 va50->va_fsid = (u_long)va->va_fsid;
122 va50->va_fileid = va->va_fileid;
123 va50->va_size = va->va_size;
124 va50->va_blocksize = va->va_blocksize;
125 timespec_to_timespec50(&va->va_atime, &va50->va_atime);
126 timespec_to_timespec50(&va->va_ctime, &va50->va_ctime);
127 timespec_to_timespec50(&va->va_mtime, &va50->va_mtime);
128 timespec_to_timespec50(&va->va_birthtime, &va50->va_birthtime);
129 va50->va_gen = va->va_gen;
130 va50->va_flags = va->va_flags;
131 va50->va_rdev = (uint32_t)va->va_rdev;
132 va50->va_bytes = va->va_bytes;
133 va50->va_filerev = va->va_filerev;
134 va50->va_vaflags = va->va_flags;
135 }
136