1 /*	$NetBSD: linux_misc.h,v 1.24 2013/11/18 01:32:52 chs Exp $	*/
2 
3 /*-
4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Eric Haszlakiewicz.
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 #ifndef _LINUX_MISC_H
33 #define _LINUX_MISC_H
34 
35 /*
36  * Options passed to the Linux wait4() system call.
37  */
38 #define LINUX_WAIT4_WNOHANG   0x00000001
39 #define LINUX_WAIT4_WUNTRACED 0x00000002
40 #define LINUX_WAIT4_WNOTHREAD 0x20000000
41 #define LINUX_WAIT4_WALL      0x40000000
42 #define LINUX_WAIT4_WCLONE    0x80000000
43 
44 #define LINUX_WAIT4_KNOWNFLAGS (LINUX_WAIT4_WNOHANG | \
45                                 LINUX_WAIT4_WUNTRACED | \
46                                 LINUX_WAIT4_WNOTHREAD | \
47                                 LINUX_WAIT4_WALL | \
48                                 LINUX_WAIT4_WCLONE)
49 
50 /* This looks very unportable to me, but this is how Linux defines it. */
51 struct linux_sysinfo {
52 	long uptime;
53 	unsigned long loads[3];
54 #define LINUX_SYSINFO_LOADS_SCALE 65536
55 	unsigned long totalram;
56 	unsigned long freeram;
57 	unsigned long sharedram;
58 	unsigned long bufferram;
59 	unsigned long totalswap;
60 	unsigned long freeswap;
61 	unsigned short procs;
62 	unsigned long totalbig;
63 	unsigned long freebig;
64 	unsigned int mem_unit;
65 	char _f[20-2*sizeof(long)-sizeof(int)];
66 };
67 
68 #define	LINUX_RLIMIT_CPU	0
69 #define	LINUX_RLIMIT_FSIZE	1
70 #define	LINUX_RLIMIT_DATA	2
71 #define	LINUX_RLIMIT_STACK	3
72 #define	LINUX_RLIMIT_CORE	4
73 #define	LINUX_RLIMIT_RSS	5
74 #define	LINUX_RLIMIT_NPROC	6
75 #define	LINUX_RLIMIT_NOFILE	7
76 #define	LINUX_RLIMIT_MEMLOCK	8
77 #define	LINUX_RLIMIT_AS		9
78 #define	LINUX_RLIMIT_LOCKS	10
79 #ifdef __mips__  /* XXX only mips32. On mips64, it's ~0ul */
80 #define	LINUX_RLIM_INFINITY	0x7fffffffUL
81 #define	LINUX32_RLIM_INFINITY	0x7fffffffU
82 #else
83 #define	LINUX_RLIM_INFINITY	~0ul
84 #define	LINUX32_RLIM_INFINITY	~0u
85 #endif
86 
87 
88 /* When we don't know what to do, let it believe it is local */
89 #define	LINUX_DEFAULT_SUPER_MAGIC	LINUX_EXT2_SUPER_MAGIC
90 
91 #define	LINUX_ADFS_SUPER_MAGIC		0x0000adf5
92 #define	LINUX_AFFS_SUPER_MAGIC		0x0000adff
93 #define	LINUX_CODA_SUPER_MAGIC		0x73757245
94 #define	LINUX_COH_SUPER_MAGIC		(LINUX_SYSV_MAGIC_BASE + 4)
95 #define	LINUX_DEVFS_SUPER_MAGIC		0x00001373
96 #define	LINUX_EFS_SUPER_MAGIC		0x00414A53
97 #define	LINUX_EXT2_SUPER_MAGIC		0x0000EF53
98 #define	LINUX_HPFS_SUPER_MAGIC		0xf995e849
99 #define	LINUX_ISOFS_SUPER_MAGIC		0x00009660
100 #define	LINUX_MINIX2_SUPER_MAGIC	0x00002468
101 #define	LINUX_MINIX2_SUPER_MAGIC2	0x00002478
102 #define	LINUX_MINIX_SUPER_MAGIC		0x0000137F
103 #define	LINUX_MINIX_SUPER_MAGIC2	0x0000138F
104 #define	LINUX_MSDOS_SUPER_MAGIC		0x00004d44
105 #define	LINUX_NCP_SUPER_MAGIC		0x0000564c
106 #define	LINUX_NFS_SUPER_MAGIC		0x00006969
107 #define	LINUX_OPENPROM_SUPER_MAGIC	0x00009fa1
108 #define	LINUX_PROC_SUPER_MAGIC		0x00009fa0
109 #define	LINUX_QNX4_SUPER_MAGIC		0x0000002f
110 #define	LINUX_REISERFS_SUPER_MAGIC	0x52654973
111 #define	LINUX_SMB_SUPER_MAGIC		0x0000517B
112 #define	LINUX_SYSV2_SUPER_MAGIC		(LINUX_SYSV_MAGIC_BASE + 3)
113 #define	LINUX_SYSV4_SUPER_MAGIC		(LINUX_SYSV_MAGIC_BASE + 2)
114 #define	LINUX_SYSV_MAGIC_BASE		0x012FF7B3
115 #define	LINUX_TMPFS_SUPER_MAGIC		0x01021994
116 #define	LINUX_USBDEVICE_SUPER_MAGIC	0x00009fa2
117 #define	LINUX_DEVPTS_SUPER_MAGIC	0x00001cd1
118 #define	LINUX_XENIX_SUPER_MAGIC		(LINUX_SYSV_MAGIC_BASE + 1)
119 
120 struct linux_mnttypes {
121 	const char *mty_bsd;
122 	int mty_linux;
123 };
124 extern const struct linux_mnttypes linux_fstypes[];
125 extern const int linux_fstypes_cnt;
126 
127 /* Personality types. */
128 #define LINUX_PER_QUERY		0xffffffff
129 #define LINUX_PER_LINUX		0x00
130 #define LINUX_PER_LINUX32	0x08
131 #define LINUX_PER_MASK		0xff
132 
133 /* Personality flags. */
134 #define LINUX_PER_ADDR_NO_RANDOMIZE	0x00040000
135 
136 /*
137  * Convert POSIX_FADV_* constants from Linux to NetBSD
138  * (it's f(x)=x everywhere except S390)
139  */
140 #define linux_to_bsd_posix_fadv(advice) (advice)
141 
142 #ifdef _KERNEL
143 __BEGIN_DECLS
144 int bsd_to_linux_wstat(int);
145 int linux_select1(struct lwp *, register_t *, int, fd_set *, fd_set *,
146 		       fd_set *, struct linux_timeval *);
147 int linux_do_sys_utimensat(struct lwp *, int, const char *,
148     struct timespec *, int, register_t *);
149 __END_DECLS
150 #endif /* !_KERNEL */
151 
152 #endif /* !_LINUX_MISC_H */
153