1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2006 Roman Divacky
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 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31#ifndef _LINUX_MISC_H_
32#define	_LINUX_MISC_H_
33
34#include <sys/sysctl.h>
35
36				/* bits per mask */
37#define	LINUX_NFDBITS		sizeof(l_fd_mask) * 8
38
39/*
40 * Miscellaneous
41 */
42#define	LINUX_NAME_MAX		255
43#define	LINUX_MAX_UTSNAME	65
44
45#define	LINUX_CTL_MAXNAME	10
46
47/* defines for prctl */
48#define	LINUX_PR_SET_PDEATHSIG  1	/* Second arg is a signal. */
49#define	LINUX_PR_GET_PDEATHSIG  2	/*
50					 * Second arg is a ptr to return the
51					 * signal.
52					 */
53#define	LINUX_PR_GET_KEEPCAPS	7	/* Get drop capabilities on setuid */
54#define	LINUX_PR_SET_KEEPCAPS	8	/* Set drop capabilities on setuid */
55#define	LINUX_PR_SET_NAME	15	/* Set process name. */
56#define	LINUX_PR_GET_NAME	16	/* Get process name. */
57
58#define	LINUX_MAX_COMM_LEN	16	/* Maximum length of the process name. */
59
60#define	LINUX_MREMAP_MAYMOVE	1
61#define	LINUX_MREMAP_FIXED	2
62
63#define	LINUX_PATH_MAX		4096
64
65extern const char *linux_kplatform;
66
67/*
68 * Non-standard aux entry types used in Linux ELF binaries.
69 */
70
71#define	LINUX_AT_PLATFORM	15	/* String identifying CPU */
72#define	LINUX_AT_HWCAP		16	/* CPU capabilities */
73#define	LINUX_AT_CLKTCK		17	/* frequency at which times() increments */
74#define	LINUX_AT_SECURE		23	/* secure mode boolean */
75#define	LINUX_AT_BASE_PLATFORM	24	/* string identifying real platform, may
76					 * differ from AT_PLATFORM.
77					 */
78#define	LINUX_AT_RANDOM		25	/* address of random bytes */
79#define	LINUX_AT_EXECFN		31	/* filename of program */
80#define	LINUX_AT_SYSINFO	32	/* vsyscall */
81#define	LINUX_AT_SYSINFO_EHDR	33	/* vdso header */
82
83#define	LINUX_AT_RANDOM_LEN	16	/* size of random bytes */
84
85/* Linux sets the i387 to extended precision. */
86#if defined(__i386__) || defined(__amd64__)
87#define	__LINUX_NPXCW__		0x37f
88#endif
89
90#define	LINUX_CLONE_VM			0x00000100
91#define	LINUX_CLONE_FS			0x00000200
92#define	LINUX_CLONE_FILES		0x00000400
93#define	LINUX_CLONE_SIGHAND		0x00000800
94#define	LINUX_CLONE_PID			0x00001000	/* No longer exist in Linux */
95#define	LINUX_CLONE_VFORK		0x00004000
96#define	LINUX_CLONE_PARENT		0x00008000
97#define	LINUX_CLONE_THREAD		0x00010000
98#define	LINUX_CLONE_SETTLS		0x00080000
99#define	LINUX_CLONE_PARENT_SETTID	0x00100000
100#define	LINUX_CLONE_CHILD_CLEARTID	0x00200000
101#define	LINUX_CLONE_CHILD_SETTID	0x01000000
102
103/* Scheduling policies */
104#define	LINUX_SCHED_OTHER	0
105#define	LINUX_SCHED_FIFO	1
106#define	LINUX_SCHED_RR		2
107
108#define	LINUX_MAX_RT_PRIO	100
109
110struct l_new_utsname {
111	char	sysname[LINUX_MAX_UTSNAME];
112	char	nodename[LINUX_MAX_UTSNAME];
113	char	release[LINUX_MAX_UTSNAME];
114	char	version[LINUX_MAX_UTSNAME];
115	char	machine[LINUX_MAX_UTSNAME];
116	char	domainname[LINUX_MAX_UTSNAME];
117};
118
119#define LINUX_UTIME_NOW			0x3FFFFFFF
120#define LINUX_UTIME_OMIT		0x3FFFFFFE
121
122extern int stclohz;
123
124#define	LINUX_WNOHANG		0x00000001
125#define	LINUX_WUNTRACED		0x00000002
126#define	LINUX_WSTOPPED		LINUX_WUNTRACED
127#define	LINUX_WEXITED		0x00000004
128#define	LINUX_WCONTINUED	0x00000008
129#define	LINUX_WNOWAIT		0x01000000
130
131
132#define	__WNOTHREAD		0x20000000
133#define	__WALL			0x40000000
134#define	__WCLONE		0x80000000
135
136/* Linux waitid idtype  */
137#define	LINUX_P_ALL		0
138#define	LINUX_P_PID		1
139#define	LINUX_P_PGID		2
140
141#define	LINUX_RLIMIT_LOCKS	RLIM_NLIMITS + 1
142#define	LINUX_RLIMIT_SIGPENDING	RLIM_NLIMITS + 2
143#define	LINUX_RLIMIT_MSGQUEUE	RLIM_NLIMITS + 3
144#define	LINUX_RLIMIT_NICE	RLIM_NLIMITS + 4
145#define	LINUX_RLIMIT_RTPRIO	RLIM_NLIMITS + 5
146#define	LINUX_RLIMIT_RTTIME	RLIM_NLIMITS + 6
147
148#define	LINUX_RLIM_INFINITY	(~0UL)
149
150/* Linux getrandom flags */
151#define	LINUX_GRND_NONBLOCK	0x0001
152#define	LINUX_GRND_RANDOM	0x0002
153
154/* Linux syslog flags */
155#define	LINUX_SYSLOG_ACTION_READ_ALL	3
156
157#if defined(__amd64__) && !defined(COMPAT_LINUX32)
158int linux_ptrace_status(struct thread *td, int pid, int status);
159#endif
160void linux_to_bsd_waitopts(int options, int *bsdopts);
161int linux_set_upcall_kse(struct thread *td, register_t stack);
162int linux_set_cloned_tls(struct thread *td, void *desc);
163struct thread	*linux_tdfind(struct thread *, lwpid_t, pid_t);
164
165#endif	/* _LINUX_MISC_H_ */
166