linux_misc.h revision 1.31 1 /* $NetBSD: linux_misc.h,v 1.31 2024/05/12 19:50:42 christos 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() and waitid() system calls.
37 */
38 #define LINUX_WNOHANG 0x00000001
39 #define LINUX_WUNTRACED 0x00000002
40 #define LINUX_WEXITED 0x00000004
41 #define LINUX_WCONTINUED 0x00000008
42 #define LINUX_WNOWAIT 0x01000000
43 #define LINUX_WNOTHREAD 0x20000000
44 #define LINUX_WALL 0x40000000
45 #define LINUX_WCLONE 0x80000000
46
47 #define LINUX_WAIT4_KNOWNFLAGS (LINUX_WNOHANG | \
48 LINUX_WUNTRACED | \
49 LINUX_WCONTINUED | \
50 LINUX_WNOTHREAD | \
51 LINUX_WALL | \
52 LINUX_WCLONE)
53
54 #define LINUX_WAITID_KNOWNFLAGS (LINUX_WNOHANG | \
55 LINUX_WEXITED | \
56 LINUX_WUNTRACED | \
57 LINUX_WCONTINUED | \
58 LINUX_WNOWAIT)
59
60 /*
61 * Passed as the first argument of waitid(2).
62 */
63 #define LINUX_P_ALL 0
64 #define LINUX_P_PID 1
65 #define LINUX_P_PGID 2
66 #define LINUX_P_PIDFD 3
67
68 /* This looks very unportable to me, but this is how Linux defines it. */
69 struct linux_sysinfo {
70 long uptime;
71 unsigned long loads[3];
72 #define LINUX_SYSINFO_LOADS_SCALE 65536
73 unsigned long totalram;
74 unsigned long freeram;
75 unsigned long sharedram;
76 unsigned long bufferram;
77 unsigned long totalswap;
78 unsigned long freeswap;
79 unsigned short procs;
80 unsigned long totalbig;
81 unsigned long freebig;
82 unsigned int mem_unit;
83 char _f[20-2*sizeof(long)-sizeof(int)];
84 };
85
86 #define LINUX_RLIMIT_CPU 0
87 #define LINUX_RLIMIT_FSIZE 1
88 #define LINUX_RLIMIT_DATA 2
89 #define LINUX_RLIMIT_STACK 3
90 #define LINUX_RLIMIT_CORE 4
91 #define LINUX_RLIMIT_RSS 5
92 #define LINUX_RLIMIT_NPROC 6
93 #define LINUX_RLIMIT_NOFILE 7
94 #define LINUX_RLIMIT_MEMLOCK 8
95 #define LINUX_RLIMIT_AS 9
96 #define LINUX_RLIMIT_LOCKS 10
97 #define LINUX_RLIMIT_SIGPENDING 11
98 #define LINUX_RLIMIT_MSGQUEUE 12
99 #define LINUX_RLIMIT_NICE 13
100 #define LINUX_RLIMIT_RTPRIO 14
101 #define LINUX_RLIMIT_RTTIME 15
102 #ifdef __mips__ /* XXX only mips32. On mips64, it's ~0ul */
103 #define LINUX_RLIM_INFINITY 0x7fffffffUL
104 #define LINUX32_RLIM_INFINITY 0x7fffffffU
105 #else
106 #define LINUX_RLIM_INFINITY ~0ul
107 #define LINUX32_RLIM_INFINITY ~0u
108 #endif
109
110
111 /* When we don't know what to do, let it believe it is local */
112 #define LINUX_DEFAULT_SUPER_MAGIC LINUX_EXT2_SUPER_MAGIC
113
114 #define LINUX_ADFS_SUPER_MAGIC 0x0000adf5
115 #define LINUX_AFFS_SUPER_MAGIC 0x0000adff
116 #define LINUX_CODA_SUPER_MAGIC 0x73757245
117 #define LINUX_COH_SUPER_MAGIC (LINUX_SYSV_MAGIC_BASE + 4)
118 #define LINUX_DEVFS_SUPER_MAGIC 0x00001373
119 #define LINUX_EFS_SUPER_MAGIC 0x00414A53
120 #define LINUX_EXT2_SUPER_MAGIC 0x0000EF53
121 #define LINUX_HPFS_SUPER_MAGIC 0xf995e849
122 #define LINUX_ISOFS_SUPER_MAGIC 0x00009660
123 #define LINUX_MINIX2_SUPER_MAGIC 0x00002468
124 #define LINUX_MINIX2_SUPER_MAGIC2 0x00002478
125 #define LINUX_MINIX_SUPER_MAGIC 0x0000137F
126 #define LINUX_MINIX_SUPER_MAGIC2 0x0000138F
127 #define LINUX_MSDOS_SUPER_MAGIC 0x00004d44
128 #define LINUX_NCP_SUPER_MAGIC 0x0000564c
129 #define LINUX_NFS_SUPER_MAGIC 0x00006969
130 #define LINUX_OPENPROM_SUPER_MAGIC 0x00009fa1
131 #define LINUX_PROC_SUPER_MAGIC 0x00009fa0
132 #define LINUX_QNX4_SUPER_MAGIC 0x0000002f
133 #define LINUX_REISERFS_SUPER_MAGIC 0x52654973
134 #define LINUX_SMB_SUPER_MAGIC 0x0000517B
135 #define LINUX_SYSV2_SUPER_MAGIC (LINUX_SYSV_MAGIC_BASE + 3)
136 #define LINUX_SYSV4_SUPER_MAGIC (LINUX_SYSV_MAGIC_BASE + 2)
137 #define LINUX_SYSV_MAGIC_BASE 0x012FF7B3
138 #define LINUX_TMPFS_SUPER_MAGIC 0x01021994
139 #define LINUX_USBDEVICE_SUPER_MAGIC 0x00009fa2
140 #define LINUX_DEVPTS_SUPER_MAGIC 0x00001cd1
141 #define LINUX_XENIX_SUPER_MAGIC (LINUX_SYSV_MAGIC_BASE + 1)
142
143 struct linux_mnttypes {
144 const char *mty_bsd;
145 int mty_linux;
146 };
147 extern const struct linux_mnttypes linux_fstypes[];
148 extern const int linux_fstypes_cnt;
149
150 /* Personality types. */
151 #define LINUX_PER_QUERY 0xffffffff
152 #define LINUX_PER_LINUX 0x00
153 #define LINUX_PER_LINUX32 0x08
154 #define LINUX_PER_MASK 0xff
155
156 /* Personality flags. */
157 #define LINUX_PER_ADDR_NO_RANDOMIZE 0x00040000
158
159 /*
160 * Convert POSIX_FADV_* constants from Linux to NetBSD
161 * (it's f(x)=x everywhere except S390)
162 */
163 #define linux_to_bsd_posix_fadv(advice) (advice)
164
165 struct linux_epoll_event {
166 uint32_t events;
167 uint64_t data;
168 }
169 #if defined(__amd64__)
170 /* Only for x86_64. See include/uapi/linux/eventpoll.h. */
171 __packed
172 #endif
173 ;
174
175 #ifdef _KERNEL
176 __BEGIN_DECLS
177 int bsd_to_linux_wstat(int);
178 int linux_select1(struct lwp *, register_t *, int, fd_set *, fd_set *,
179 fd_set *, struct linux_timeval *);
180 int linux_do_sys_utimensat(struct lwp *, int, const char *,
181 struct timespec *, int, register_t *);
182 int linux_do_futex(int *, int, int, struct timespec *, int *, int, int,
183 register_t *);
184 __END_DECLS
185 #endif /* !_KERNEL */
186
187 #endif /* !_LINUX_MISC_H */
188