xref: /freebsd/sys/compat/linux/linux_misc.h (revision 3b57ddb029daf225a8385dade491019269da82e8)
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_DUMPABLE	3
54 #define	LINUX_PR_SET_DUMPABLE	4
55 #define	LINUX_PR_GET_KEEPCAPS	7	/* Get drop capabilities on setuid */
56 #define	LINUX_PR_SET_KEEPCAPS	8	/* Set drop capabilities on setuid */
57 #define	LINUX_PR_SET_NAME	15	/* Set process name. */
58 #define	LINUX_PR_GET_NAME	16	/* Get process name. */
59 #define	LINUX_PR_GET_SECCOMP	21
60 #define	LINUX_PR_SET_SECCOMP	22
61 #define	LINUX_PR_CAPBSET_READ	23
62 #define	LINUX_PR_SET_NO_NEW_PRIVS	38
63 #define	LINUX_PR_SET_PTRACER	1499557217
64 
65 #define	LINUX_MAX_COMM_LEN	16	/* Maximum length of the process name. */
66 
67 /* For GET/SET DUMPABLE */
68 #define	LINUX_SUID_DUMP_DISABLE	0	/* Don't coredump setuid processes. */
69 #define	LINUX_SUID_DUMP_USER	1	/* Dump as user of process. */
70 #define	LINUX_SUID_DUMP_ROOT	2	/* Dump as root. */
71 
72 #define	LINUX_MREMAP_MAYMOVE	1
73 #define	LINUX_MREMAP_FIXED	2
74 
75 #define	LINUX_PATH_MAX		4096
76 
77 extern const char *linux_kplatform;
78 
79 /*
80  * Non-standard aux entry types used in Linux ELF binaries.
81  */
82 
83 #define	LINUX_AT_PLATFORM	15	/* String identifying CPU */
84 #define	LINUX_AT_HWCAP		16	/* CPU capabilities */
85 #define	LINUX_AT_CLKTCK		17	/* frequency at which times() increments */
86 #define	LINUX_AT_SECURE		23	/* secure mode boolean */
87 #define	LINUX_AT_BASE_PLATFORM	24	/* string identifying real platform, may
88 					 * differ from AT_PLATFORM.
89 					 */
90 #define	LINUX_AT_RANDOM		25	/* address of random bytes */
91 #define	LINUX_AT_EXECFN		31	/* filename of program */
92 #define	LINUX_AT_SYSINFO	32	/* vsyscall */
93 #define	LINUX_AT_SYSINFO_EHDR	33	/* vdso header */
94 
95 #define	LINUX_AT_RANDOM_LEN	16	/* size of random bytes */
96 
97 /* Linux sets the i387 to extended precision. */
98 #if defined(__i386__) || defined(__amd64__)
99 #define	__LINUX_NPXCW__		0x37f
100 #endif
101 
102 #define	LINUX_CLONE_VM			0x00000100
103 #define	LINUX_CLONE_FS			0x00000200
104 #define	LINUX_CLONE_FILES		0x00000400
105 #define	LINUX_CLONE_SIGHAND		0x00000800
106 #define	LINUX_CLONE_PID			0x00001000	/* No longer exist in Linux */
107 #define	LINUX_CLONE_PTRACE		0x00002000
108 #define	LINUX_CLONE_VFORK		0x00004000
109 #define	LINUX_CLONE_PARENT		0x00008000
110 #define	LINUX_CLONE_THREAD		0x00010000
111 #define	LINUX_CLONE_NEWNS		0x00020000	/* New mount NS */
112 #define	LINUX_CLONE_SYSVSEM		0x00040000
113 #define	LINUX_CLONE_SETTLS		0x00080000
114 #define	LINUX_CLONE_PARENT_SETTID	0x00100000
115 #define	LINUX_CLONE_CHILD_CLEARTID	0x00200000
116 #define	LINUX_CLONE_DETACHED		0x00400000	/* Unused */
117 #define	LINUX_CLONE_UNTRACED		0x00800000
118 #define	LINUX_CLONE_CHILD_SETTID	0x01000000
119 #define	LINUX_CLONE_NEWCGROUP		0x02000000	/* New cgroup NS */
120 #define	LINUX_CLONE_NEWUTS		0x04000000
121 #define	LINUX_CLONE_NEWIPC		0x08000000
122 #define	LINUX_CLONE_NEWUSER		0x10000000
123 #define	LINUX_CLONE_NEWPID		0x20000000
124 #define	LINUX_CLONE_NEWNET		0x40000000
125 #define	LINUX_CLONE_IO			0x80000000
126 
127 /* Scheduling policies */
128 #define	LINUX_SCHED_OTHER	0
129 #define	LINUX_SCHED_FIFO	1
130 #define	LINUX_SCHED_RR		2
131 
132 #define	LINUX_MAX_RT_PRIO	100
133 
134 struct l_new_utsname {
135 	char	sysname[LINUX_MAX_UTSNAME];
136 	char	nodename[LINUX_MAX_UTSNAME];
137 	char	release[LINUX_MAX_UTSNAME];
138 	char	version[LINUX_MAX_UTSNAME];
139 	char	machine[LINUX_MAX_UTSNAME];
140 	char	domainname[LINUX_MAX_UTSNAME];
141 };
142 
143 #define LINUX_UTIME_NOW			0x3FFFFFFF
144 #define LINUX_UTIME_OMIT		0x3FFFFFFE
145 
146 extern int stclohz;
147 
148 #define	LINUX_WNOHANG		0x00000001
149 #define	LINUX_WUNTRACED		0x00000002
150 #define	LINUX_WSTOPPED		LINUX_WUNTRACED
151 #define	LINUX_WEXITED		0x00000004
152 #define	LINUX_WCONTINUED	0x00000008
153 #define	LINUX_WNOWAIT		0x01000000
154 
155 #define	__WNOTHREAD		0x20000000
156 #define	__WALL			0x40000000
157 #define	__WCLONE		0x80000000
158 
159 /* Linux waitid idtype  */
160 #define	LINUX_P_ALL		0
161 #define	LINUX_P_PID		1
162 #define	LINUX_P_PGID		2
163 
164 #define	LINUX_RLIMIT_LOCKS	10
165 #define	LINUX_RLIMIT_SIGPENDING	11
166 #define	LINUX_RLIMIT_MSGQUEUE	12
167 #define	LINUX_RLIMIT_NICE	13
168 #define	LINUX_RLIMIT_RTPRIO	14
169 #define	LINUX_RLIMIT_RTTIME	15
170 
171 #define	LINUX_RLIM_INFINITY	(~0UL)
172 
173 /* Linux getrandom flags */
174 #define	LINUX_GRND_NONBLOCK	0x0001
175 #define	LINUX_GRND_RANDOM	0x0002
176 
177 /* Linux syslog flags */
178 #define	LINUX_SYSLOG_ACTION_READ_ALL	3
179 
180 #if defined(__amd64__) && !defined(COMPAT_LINUX32)
181 int linux_ptrace_status(struct thread *td, int pid, int status);
182 #endif
183 void linux_to_bsd_waitopts(int options, int *bsdopts);
184 int linux_set_upcall(struct thread *td, register_t stack);
185 int linux_set_cloned_tls(struct thread *td, void *desc);
186 struct thread	*linux_tdfind(struct thread *, lwpid_t, pid_t);
187 
188 #endif	/* _LINUX_MISC_H_ */
189