xref: /freebsd/sys/i386/linux/linux.h (revision fb709557)
1 /*-
2  * Copyright (c) 1994-1996 Søren Schmidt
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer
10  *    in this position and unchanged.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. The name of the author may not be used to endorse or promote products
15  *    derived from this software without specific prior written permission
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 #ifndef _I386_LINUX_H_
32 #define	_I386_LINUX_H_
33 
34 #include <sys/signal.h>	/* for sigval union */
35 
36 #include <i386/linux/linux_syscall.h>
37 
38 /*
39  * debugging support
40  */
41 extern u_char linux_debug_map[];
42 #define	ldebug(name)	isclr(linux_debug_map, LINUX_SYS_linux_ ## name)
43 #define	ARGS(nm, fmt)	"linux(%ld): "#nm"("fmt")\n", (long)td->td_proc->p_pid
44 #define	LMSG(fmt)	"linux(%ld): "fmt"\n", (long)td->td_proc->p_pid
45 #define	LINUX_DTRACE	linuxulator
46 
47 #ifdef MALLOC_DECLARE
48 MALLOC_DECLARE(M_LINUX);
49 #endif
50 
51 #define	LINUX_SHAREDPAGE	(VM_MAXUSER_ADDRESS - PAGE_SIZE)
52 #define	LINUX_USRSTACK		LINUX_SHAREDPAGE
53 
54 #define	PTRIN(v)	(void *)(v)
55 #define	PTROUT(v)	(l_uintptr_t)(v)
56 
57 /*
58  * Provide a separate set of types for the Linux types.
59  */
60 typedef int		l_int;
61 typedef int32_t		l_long;
62 typedef int64_t		l_longlong;
63 typedef short		l_short;
64 typedef unsigned int	l_uint;
65 typedef uint32_t	l_ulong;
66 typedef uint64_t	l_ulonglong;
67 typedef unsigned short	l_ushort;
68 
69 typedef char		*l_caddr_t;
70 typedef l_ulong		l_uintptr_t;
71 typedef l_long		l_clock_t;
72 typedef l_int		l_daddr_t;
73 typedef l_ushort	l_dev_t;
74 typedef l_uint		l_gid_t;
75 typedef l_ushort	l_gid16_t;
76 typedef l_ulong		l_ino_t;
77 typedef l_int		l_key_t;
78 typedef l_longlong	l_loff_t;
79 typedef l_ushort	l_mode_t;
80 typedef l_long		l_off_t;
81 typedef l_int		l_pid_t;
82 typedef l_uint		l_size_t;
83 typedef l_long		l_suseconds_t;
84 typedef l_long		l_time_t;
85 typedef l_uint		l_uid_t;
86 typedef l_ushort	l_uid16_t;
87 typedef l_int		l_timer_t;
88 typedef l_int		l_mqd_t;
89 
90 typedef struct {
91 	l_int		val[2];
92 } l_fsid_t;
93 
94 typedef struct {
95 	l_time_t	tv_sec;
96 	l_suseconds_t	tv_usec;
97 } l_timeval;
98 
99 #define	l_fd_set	fd_set
100 
101 /*
102  * Miscellaneous
103  */
104 #define	LINUX_NAME_MAX		255
105 #define	LINUX_MAX_UTSNAME	65
106 
107 #define	LINUX_CTL_MAXNAME	10
108 
109 #define LINUX_AT_COUNT		16	/* Count of used aux entry types.
110 					 * Keep this synchronized with
111 					 * elf_linux_fixup() code.
112 					 */
113 struct l___sysctl_args
114 {
115 	l_int		*name;
116 	l_int		nlen;
117 	void		*oldval;
118 	l_size_t	*oldlenp;
119 	void		*newval;
120 	l_size_t	newlen;
121 	l_ulong		__spare[4];
122 };
123 
124 /* Scheduling policies */
125 #define	LINUX_SCHED_OTHER	0
126 #define	LINUX_SCHED_FIFO	1
127 #define	LINUX_SCHED_RR		2
128 
129 /* Resource limits */
130 #define	LINUX_RLIMIT_CPU	0
131 #define	LINUX_RLIMIT_FSIZE	1
132 #define	LINUX_RLIMIT_DATA	2
133 #define	LINUX_RLIMIT_STACK	3
134 #define	LINUX_RLIMIT_CORE	4
135 #define	LINUX_RLIMIT_RSS	5
136 #define	LINUX_RLIMIT_NPROC	6
137 #define	LINUX_RLIMIT_NOFILE	7
138 #define	LINUX_RLIMIT_MEMLOCK	8
139 #define	LINUX_RLIMIT_AS		9	/* Address space limit */
140 
141 #define	LINUX_RLIM_NLIMITS	10
142 
143 struct l_rlimit {
144 	l_ulong rlim_cur;
145 	l_ulong rlim_max;
146 };
147 
148 /* mmap options */
149 #define	LINUX_MAP_SHARED	0x0001
150 #define	LINUX_MAP_PRIVATE	0x0002
151 #define	LINUX_MAP_FIXED		0x0010
152 #define	LINUX_MAP_ANON		0x0020
153 #define	LINUX_MAP_GROWSDOWN	0x0100
154 
155 struct l_mmap_argv {
156 	l_uintptr_t	addr;
157 	l_size_t	len;
158 	l_int		prot;
159 	l_int		flags;
160 	l_int		fd;
161 	l_off_t		pgoff;
162 } __packed;
163 
164 /*
165  * stat family of syscalls
166  */
167 struct l_timespec {
168 	l_time_t	tv_sec;
169 	l_long		tv_nsec;
170 };
171 
172 struct l_newstat {
173 	l_ushort	st_dev;
174 	l_ushort	__pad1;
175 	l_ulong		st_ino;
176 	l_ushort	st_mode;
177 	l_ushort	st_nlink;
178 	l_ushort	st_uid;
179 	l_ushort	st_gid;
180 	l_ushort	st_rdev;
181 	l_ushort	__pad2;
182 	l_ulong		st_size;
183 	l_ulong		st_blksize;
184 	l_ulong		st_blocks;
185 	struct l_timespec	st_atim;
186 	struct l_timespec	st_mtim;
187 	struct l_timespec	st_ctim;
188 	l_ulong		__unused4;
189 	l_ulong		__unused5;
190 };
191 
192 struct l_stat {
193 	l_ushort	st_dev;
194 	l_ulong		st_ino;
195 	l_ushort	st_mode;
196 	l_ushort	st_nlink;
197 	l_ushort	st_uid;
198 	l_ushort	st_gid;
199 	l_ushort	st_rdev;
200 	l_long		st_size;
201 	struct l_timespec	st_atim;
202 	struct l_timespec	st_mtim;
203 	struct l_timespec	st_ctim;
204 	l_long		st_blksize;
205 	l_long		st_blocks;
206 	l_ulong		st_flags;
207 	l_ulong		st_gen;
208 };
209 
210 struct l_stat64 {
211 	l_ushort	st_dev;
212 	u_char		__pad0[10];
213 	l_ulong		__st_ino;
214 	l_uint		st_mode;
215 	l_uint		st_nlink;
216 	l_ulong		st_uid;
217 	l_ulong		st_gid;
218 	l_ushort	st_rdev;
219 	u_char		__pad3[10];
220 	l_longlong	st_size;
221 	l_ulong		st_blksize;
222 	l_ulong		st_blocks;
223 	l_ulong		__pad4;
224 	struct l_timespec	st_atim;
225 	struct l_timespec	st_mtim;
226 	struct l_timespec	st_ctim;
227 	l_ulonglong	st_ino;
228 };
229 
230 struct l_statfs64 {
231         l_int           f_type;
232         l_int           f_bsize;
233         uint64_t        f_blocks;
234         uint64_t        f_bfree;
235         uint64_t        f_bavail;
236         uint64_t        f_files;
237         uint64_t        f_ffree;
238         l_fsid_t        f_fsid;
239         l_int           f_namelen;
240         l_int           f_spare[6];
241 };
242 
243 struct l_new_utsname {
244 	char	sysname[LINUX_MAX_UTSNAME];
245 	char	nodename[LINUX_MAX_UTSNAME];
246 	char	release[LINUX_MAX_UTSNAME];
247 	char	version[LINUX_MAX_UTSNAME];
248 	char	machine[LINUX_MAX_UTSNAME];
249 	char	domainname[LINUX_MAX_UTSNAME];
250 };
251 
252 /*
253  * Signalling
254  */
255 #define	LINUX_SIGHUP		1
256 #define	LINUX_SIGINT		2
257 #define	LINUX_SIGQUIT		3
258 #define	LINUX_SIGILL		4
259 #define	LINUX_SIGTRAP		5
260 #define	LINUX_SIGABRT		6
261 #define	LINUX_SIGIOT		LINUX_SIGABRT
262 #define	LINUX_SIGBUS		7
263 #define	LINUX_SIGFPE		8
264 #define	LINUX_SIGKILL		9
265 #define	LINUX_SIGUSR1		10
266 #define	LINUX_SIGSEGV		11
267 #define	LINUX_SIGUSR2		12
268 #define	LINUX_SIGPIPE		13
269 #define	LINUX_SIGALRM		14
270 #define	LINUX_SIGTERM		15
271 #define	LINUX_SIGSTKFLT		16
272 #define	LINUX_SIGCHLD		17
273 #define	LINUX_SIGCONT		18
274 #define	LINUX_SIGSTOP		19
275 #define	LINUX_SIGTSTP		20
276 #define	LINUX_SIGTTIN		21
277 #define	LINUX_SIGTTOU		22
278 #define	LINUX_SIGURG		23
279 #define	LINUX_SIGXCPU		24
280 #define	LINUX_SIGXFSZ		25
281 #define	LINUX_SIGVTALRM		26
282 #define	LINUX_SIGPROF		27
283 #define	LINUX_SIGWINCH		28
284 #define	LINUX_SIGIO		29
285 #define	LINUX_SIGPOLL		LINUX_SIGIO
286 #define	LINUX_SIGPWR		30
287 #define	LINUX_SIGSYS		31
288 #define	LINUX_SIGRTMIN		32
289 
290 #define	LINUX_SIGTBLSZ		31
291 #define	LINUX_NSIG_WORDS	2
292 #define	LINUX_NBPW		32
293 #define	LINUX_NSIG		(LINUX_NBPW * LINUX_NSIG_WORDS)
294 
295 /* sigaction flags */
296 #define	LINUX_SA_NOCLDSTOP	0x00000001
297 #define	LINUX_SA_NOCLDWAIT	0x00000002
298 #define	LINUX_SA_SIGINFO	0x00000004
299 #define	LINUX_SA_RESTORER	0x04000000
300 #define	LINUX_SA_ONSTACK	0x08000000
301 #define	LINUX_SA_RESTART	0x10000000
302 #define	LINUX_SA_INTERRUPT	0x20000000
303 #define	LINUX_SA_NOMASK		0x40000000
304 #define	LINUX_SA_ONESHOT	0x80000000
305 
306 /* sigprocmask actions */
307 #define	LINUX_SIG_BLOCK		0
308 #define	LINUX_SIG_UNBLOCK	1
309 #define	LINUX_SIG_SETMASK	2
310 
311 /* sigset_t macros */
312 #define	LINUX_SIGEMPTYSET(set)		(set).__bits[0] = (set).__bits[1] = 0
313 #define	LINUX_SIGISMEMBER(set, sig)	SIGISMEMBER(set, sig)
314 #define	LINUX_SIGADDSET(set, sig)	SIGADDSET(set, sig)
315 
316 /* sigaltstack */
317 #define	LINUX_MINSIGSTKSZ	2048
318 #define	LINUX_SS_ONSTACK	1
319 #define	LINUX_SS_DISABLE	2
320 
321 int linux_to_bsd_sigaltstack(int lsa);
322 int bsd_to_linux_sigaltstack(int bsa);
323 
324 typedef void	(*l_handler_t)(l_int);
325 typedef l_ulong	l_osigset_t;
326 
327 typedef struct {
328 	l_uint	__bits[LINUX_NSIG_WORDS];
329 } l_sigset_t;
330 
331 typedef struct {
332 	l_handler_t	lsa_handler;
333 	l_osigset_t	lsa_mask;
334 	l_ulong		lsa_flags;
335 	void	(*lsa_restorer)(void);
336 } l_osigaction_t;
337 
338 typedef struct {
339 	l_handler_t	lsa_handler;
340 	l_ulong		lsa_flags;
341 	void	(*lsa_restorer)(void);
342 	l_sigset_t	lsa_mask;
343 } l_sigaction_t;
344 
345 typedef struct {
346 	void		*ss_sp;
347 	l_int		ss_flags;
348 	l_size_t	ss_size;
349 } l_stack_t;
350 
351 /* The Linux sigcontext, pretty much a standard 386 trapframe. */
352 struct l_sigcontext {
353 	l_int		sc_gs;
354 	l_int		sc_fs;
355 	l_int		sc_es;
356 	l_int		sc_ds;
357 	l_int		sc_edi;
358 	l_int		sc_esi;
359 	l_int		sc_ebp;
360 	l_int		sc_esp;
361 	l_int		sc_ebx;
362 	l_int		sc_edx;
363 	l_int		sc_ecx;
364 	l_int		sc_eax;
365 	l_int		sc_trapno;
366 	l_int		sc_err;
367 	l_int		sc_eip;
368 	l_int		sc_cs;
369 	l_int		sc_eflags;
370 	l_int		sc_esp_at_signal;
371 	l_int		sc_ss;
372 	l_int		sc_387;
373 	l_int		sc_mask;
374 	l_int		sc_cr2;
375 };
376 
377 struct l_ucontext {
378 	l_ulong		uc_flags;
379 	void		*uc_link;
380 	l_stack_t	uc_stack;
381 	struct l_sigcontext	uc_mcontext;
382 	l_sigset_t	uc_sigmask;
383 };
384 
385 #define	LINUX_SI_MAX_SIZE	128
386 #define	LINUX_SI_PAD_SIZE	((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3)
387 
388 typedef union l_sigval {
389 	l_int		sival_int;
390 	l_uintptr_t	sival_ptr;
391 } l_sigval_t;
392 
393 typedef struct l_siginfo {
394 	l_int		lsi_signo;
395 	l_int		lsi_errno;
396 	l_int		lsi_code;
397 	union {
398 		l_int	_pad[LINUX_SI_PAD_SIZE];
399 
400 		struct {
401 			l_pid_t		_pid;
402 			l_uid_t		_uid;
403 		} _kill;
404 
405 		struct {
406 			l_timer_t	_tid;
407 			l_int		_overrun;
408 			char		_pad[sizeof(l_uid_t) - sizeof(l_int)];
409 			l_sigval_t	_sigval;
410 			l_int		_sys_private;
411 		} _timer;
412 
413 		struct {
414 			l_pid_t		_pid;		/* sender's pid */
415 			l_uid_t		_uid;		/* sender's uid */
416 			l_sigval_t	_sigval;
417 		} _rt;
418 
419 		struct {
420 			l_pid_t		_pid;		/* which child */
421 			l_uid_t		_uid;		/* sender's uid */
422 			l_int		_status;	/* exit code */
423 			l_clock_t	_utime;
424 			l_clock_t	_stime;
425 		} _sigchld;
426 
427 		struct {
428 			l_uintptr_t	_addr;	/* Faulting insn/memory ref. */
429 		} _sigfault;
430 
431 		struct {
432 			l_long		_band;	/* POLL_IN,POLL_OUT,POLL_MSG */
433 			l_int		_fd;
434 		} _sigpoll;
435 	} _sifields;
436 } l_siginfo_t;
437 
438 #define	lsi_pid		_sifields._kill._pid
439 #define	lsi_uid		_sifields._kill._uid
440 #define	lsi_tid		_sifields._timer._tid
441 #define	lsi_overrun	_sifields._timer._overrun
442 #define	lsi_sys_private	_sifields._timer._sys_private
443 #define	lsi_status	_sifields._sigchld._status
444 #define	lsi_utime	_sifields._sigchld._utime
445 #define	lsi_stime	_sifields._sigchld._stime
446 #define	lsi_value	_sifields._rt._sigval
447 #define	lsi_int		_sifields._rt._sigval.sival_int
448 #define	lsi_ptr		_sifields._rt._sigval.sival_ptr
449 #define	lsi_addr	_sifields._sigfault._addr
450 #define	lsi_band	_sifields._sigpoll._band
451 #define	lsi_fd		_sifields._sigpoll._fd
452 
453 struct l_fpreg {
454 	u_int16_t	significand[4];
455 	u_int16_t	exponent;
456 };
457 
458 struct l_fpxreg {
459 	u_int16_t	significand[4];
460 	u_int16_t	exponent;
461 	u_int16_t	padding[3];
462 };
463 
464 struct l_xmmreg {
465 	u_int32_t	element[4];
466 };
467 
468 struct l_fpstate {
469 	/* Regular FPU environment */
470 	u_int32_t		cw;
471 	u_int32_t		sw;
472 	u_int32_t		tag;
473 	u_int32_t		ipoff;
474 	u_int32_t		cssel;
475 	u_int32_t		dataoff;
476 	u_int32_t		datasel;
477 	struct l_fpreg		_st[8];
478 	u_int16_t		status;
479 	u_int16_t		magic;		/* 0xffff = regular FPU data */
480 
481 	/* FXSR FPU environment */
482 	u_int32_t		_fxsr_env[6];	/* env is ignored. */
483 	u_int32_t		mxcsr;
484 	u_int32_t		reserved;
485 	struct l_fpxreg		_fxsr_st[8];	/* reg data is ignored. */
486 	struct l_xmmreg		_xmm[8];
487 	u_int32_t		padding[56];
488 };
489 
490 /*
491  * We make the stack look like Linux expects it when calling a signal
492  * handler, but use the BSD way of calling the handler and sigreturn().
493  * This means that we need to pass the pointer to the handler too.
494  * It is appended to the frame to not interfere with the rest of it.
495  */
496 struct l_sigframe {
497 	l_int			sf_sig;
498 	struct l_sigcontext	sf_sc;
499 	struct l_fpstate	sf_fpstate;
500 	l_uint			sf_extramask[LINUX_NSIG_WORDS-1];
501 	l_handler_t		sf_handler;
502 };
503 
504 struct l_rt_sigframe {
505 	l_int			sf_sig;
506 	l_siginfo_t 		*sf_siginfo;
507 	struct l_ucontext	*sf_ucontext;
508 	l_siginfo_t		sf_si;
509 	struct l_ucontext 	sf_sc;
510 	l_handler_t 		sf_handler;
511 };
512 
513 extern int bsd_to_linux_signal[];
514 extern int linux_to_bsd_signal[];
515 extern struct sysentvec linux_sysvec;
516 extern struct sysentvec elf_linux_sysvec;
517 
518 /*
519  * Pluggable ioctl handlers
520  */
521 struct linux_ioctl_args;
522 struct thread;
523 
524 typedef int linux_ioctl_function_t(struct thread *, struct linux_ioctl_args *);
525 
526 struct linux_ioctl_handler {
527 	linux_ioctl_function_t *func;
528 	int	low, high;
529 };
530 
531 int	linux_ioctl_register_handler(struct linux_ioctl_handler *h);
532 int	linux_ioctl_unregister_handler(struct linux_ioctl_handler *h);
533 
534 /*
535  * open/fcntl flags
536  */
537 #define	LINUX_O_RDONLY		00000000
538 #define	LINUX_O_WRONLY		00000001
539 #define	LINUX_O_RDWR		00000002
540 #define	LINUX_O_ACCMODE		00000003
541 #define	LINUX_O_CREAT		00000100
542 #define	LINUX_O_EXCL		00000200
543 #define	LINUX_O_NOCTTY		00000400
544 #define	LINUX_O_TRUNC		00001000
545 #define	LINUX_O_APPEND		00002000
546 #define	LINUX_O_NONBLOCK	00004000
547 #define	LINUX_O_NDELAY		LINUX_O_NONBLOCK
548 #define	LINUX_O_SYNC		00010000
549 #define	LINUX_FASYNC		00020000
550 #define	LINUX_O_DIRECT		00040000	/* Direct disk access hint */
551 #define	LINUX_O_LARGEFILE	00100000
552 #define	LINUX_O_DIRECTORY	00200000	/* Must be a directory */
553 #define	LINUX_O_NOFOLLOW	00400000	/* Do not follow links */
554 #define	LINUX_O_NOATIME		01000000
555 #define	LINUX_O_CLOEXEC		02000000
556 
557 #define	LINUX_F_DUPFD		0
558 #define	LINUX_F_GETFD		1
559 #define	LINUX_F_SETFD		2
560 #define	LINUX_F_GETFL		3
561 #define	LINUX_F_SETFL		4
562 #define	LINUX_F_GETLK		5
563 #define	LINUX_F_SETLK		6
564 #define	LINUX_F_SETLKW		7
565 #define	LINUX_F_SETOWN		8
566 #define	LINUX_F_GETOWN		9
567 
568 #define	LINUX_F_GETLK64		12
569 #define	LINUX_F_SETLK64		13
570 #define	LINUX_F_SETLKW64	14
571 
572 #define	LINUX_F_RDLCK		0
573 #define	LINUX_F_WRLCK		1
574 #define	LINUX_F_UNLCK		2
575 
576 /*
577  * posix_fadvise advice
578  */
579 #define	LINUX_POSIX_FADV_NORMAL		0
580 #define	LINUX_POSIX_FADV_RANDOM		1
581 #define	LINUX_POSIX_FADV_SEQUENTIAL    	2
582 #define	LINUX_POSIX_FADV_WILLNEED      	3
583 #define	LINUX_POSIX_FADV_DONTNEED      	4
584 #define	LINUX_POSIX_FADV_NOREUSE       	5
585 
586 /*
587  * mount flags
588  */
589 #define	LINUX_MS_RDONLY		0x0001
590 #define	LINUX_MS_NOSUID		0x0002
591 #define	LINUX_MS_NODEV		0x0004
592 #define	LINUX_MS_NOEXEC		0x0008
593 #define	LINUX_MS_REMOUNT	0x0020
594 
595 /*
596  * SystemV IPC defines
597  */
598 #define	LINUX_SEMOP		1
599 #define	LINUX_SEMGET		2
600 #define	LINUX_SEMCTL		3
601 #define	LINUX_MSGSND		11
602 #define	LINUX_MSGRCV		12
603 #define	LINUX_MSGGET		13
604 #define	LINUX_MSGCTL		14
605 #define	LINUX_SHMAT		21
606 #define	LINUX_SHMDT		22
607 #define	LINUX_SHMGET		23
608 #define	LINUX_SHMCTL		24
609 
610 #define	LINUX_IPC_RMID		0
611 #define	LINUX_IPC_SET		1
612 #define	LINUX_IPC_STAT		2
613 #define	LINUX_IPC_INFO		3
614 
615 #define	LINUX_SHM_LOCK		11
616 #define	LINUX_SHM_UNLOCK	12
617 #define	LINUX_SHM_STAT		13
618 #define	LINUX_SHM_INFO		14
619 
620 #define	LINUX_SHM_RDONLY	0x1000
621 #define	LINUX_SHM_RND		0x2000
622 #define	LINUX_SHM_REMAP		0x4000
623 
624 /* semctl commands */
625 #define	LINUX_GETPID		11
626 #define	LINUX_GETVAL		12
627 #define	LINUX_GETALL		13
628 #define	LINUX_GETNCNT		14
629 #define	LINUX_GETZCNT		15
630 #define	LINUX_SETVAL		16
631 #define	LINUX_SETALL		17
632 #define	LINUX_SEM_STAT		18
633 #define	LINUX_SEM_INFO		19
634 
635 union l_semun {
636 	l_int		val;
637 	struct l_semid_ds	*buf;
638 	l_ushort	*array;
639 	struct l_seminfo	*__buf;
640 	void		*__pad;
641 };
642 
643 /*
644  * Socket defines
645  */
646 #define	LINUX_SOCKET 		1
647 #define	LINUX_BIND		2
648 #define	LINUX_CONNECT 		3
649 #define	LINUX_LISTEN 		4
650 #define	LINUX_ACCEPT 		5
651 #define	LINUX_GETSOCKNAME	6
652 #define	LINUX_GETPEERNAME	7
653 #define	LINUX_SOCKETPAIR	8
654 #define	LINUX_SEND		9
655 #define	LINUX_RECV		10
656 #define	LINUX_SENDTO 		11
657 #define	LINUX_RECVFROM 		12
658 #define	LINUX_SHUTDOWN 		13
659 #define	LINUX_SETSOCKOPT	14
660 #define	LINUX_GETSOCKOPT	15
661 #define	LINUX_SENDMSG		16
662 #define	LINUX_RECVMSG		17
663 #define	LINUX_ACCEPT4		18
664 
665 #define	LINUX_SOL_SOCKET	1
666 #define	LINUX_SOL_IP		0
667 #define	LINUX_SOL_IPX		256
668 #define	LINUX_SOL_AX25		257
669 #define	LINUX_SOL_TCP		6
670 #define	LINUX_SOL_UDP		17
671 
672 #define	LINUX_SO_DEBUG		1
673 #define	LINUX_SO_REUSEADDR	2
674 #define	LINUX_SO_TYPE		3
675 #define	LINUX_SO_ERROR		4
676 #define	LINUX_SO_DONTROUTE	5
677 #define	LINUX_SO_BROADCAST	6
678 #define	LINUX_SO_SNDBUF		7
679 #define	LINUX_SO_RCVBUF		8
680 #define	LINUX_SO_KEEPALIVE	9
681 #define	LINUX_SO_OOBINLINE	10
682 #define	LINUX_SO_NO_CHECK	11
683 #define	LINUX_SO_PRIORITY	12
684 #define	LINUX_SO_LINGER		13
685 #define	LINUX_SO_PEERCRED	17
686 #define	LINUX_SO_RCVLOWAT	18
687 #define	LINUX_SO_SNDLOWAT	19
688 #define	LINUX_SO_RCVTIMEO	20
689 #define	LINUX_SO_SNDTIMEO	21
690 #define	LINUX_SO_TIMESTAMP	29
691 #define	LINUX_SO_ACCEPTCONN	30
692 
693 #define	LINUX_IP_TOS		1
694 #define	LINUX_IP_TTL		2
695 #define	LINUX_IP_HDRINCL	3
696 #define	LINUX_IP_OPTIONS	4
697 
698 #define	LINUX_IP_MULTICAST_IF		32
699 #define	LINUX_IP_MULTICAST_TTL		33
700 #define	LINUX_IP_MULTICAST_LOOP		34
701 #define	LINUX_IP_ADD_MEMBERSHIP		35
702 #define	LINUX_IP_DROP_MEMBERSHIP	36
703 
704 #define	LINUX_TCP_NODELAY	1
705 #define	LINUX_TCP_MAXSEG	2
706 #define	LINUX_TCP_KEEPIDLE	4
707 #define	LINUX_TCP_KEEPINTVL	5
708 #define	LINUX_TCP_KEEPCNT	6
709 #define	LINUX_TCP_MD5SIG	14
710 
711 struct l_sockaddr {
712 	l_ushort	sa_family;
713 	char		sa_data[14];
714 };
715 
716 struct l_msghdr {
717 	l_uintptr_t	msg_name;
718 	l_int		msg_namelen;
719 	l_uintptr_t	msg_iov;
720 	l_size_t	msg_iovlen;
721 	l_uintptr_t	msg_control;
722 	l_size_t	msg_controllen;
723 	l_uint		msg_flags;
724 };
725 
726 struct l_cmsghdr {
727 	l_size_t	cmsg_len;
728 	l_int		cmsg_level;
729 	l_int		cmsg_type;
730 };
731 
732 struct l_ifmap {
733 	l_ulong		mem_start;
734 	l_ulong		mem_end;
735 	l_ushort	base_addr;
736 	u_char		irq;
737 	u_char		dma;
738 	u_char		port;
739 };
740 
741 #define	LINUX_IFHWADDRLEN	6
742 #define	LINUX_IFNAMSIZ		16
743 
744 struct l_ifreq {
745 	union {
746 		char	ifrn_name[LINUX_IFNAMSIZ];
747 	} ifr_ifrn;
748 
749 	union {
750 		struct l_sockaddr	ifru_addr;
751 		struct l_sockaddr	ifru_dstaddr;
752 		struct l_sockaddr	ifru_broadaddr;
753 		struct l_sockaddr	ifru_netmask;
754 		struct l_sockaddr	ifru_hwaddr;
755 		l_short		ifru_flags[1];
756 		l_int		ifru_metric;
757 		l_int		ifru_mtu;
758 		struct l_ifmap	ifru_map;
759 		char		ifru_slave[LINUX_IFNAMSIZ];
760 		l_caddr_t	ifru_data;
761 	} ifr_ifru;
762 };
763 
764 #define	ifr_name	ifr_ifrn.ifrn_name	/* Interface name */
765 #define	ifr_hwaddr	ifr_ifru.ifru_hwaddr	/* MAC address */
766 
767 /*
768  * poll()
769  */
770 #define	LINUX_POLLIN		0x0001
771 #define	LINUX_POLLPRI		0x0002
772 #define	LINUX_POLLOUT		0x0004
773 #define	LINUX_POLLERR		0x0008
774 #define	LINUX_POLLHUP		0x0010
775 #define	LINUX_POLLNVAL		0x0020
776 #define	LINUX_POLLRDNORM	0x0040
777 #define	LINUX_POLLRDBAND	0x0080
778 #define	LINUX_POLLWRNORM	0x0100
779 #define	LINUX_POLLWRBAND	0x0200
780 #define	LINUX_POLLMSG		0x0400
781 
782 struct l_pollfd {
783 	l_int		fd;
784 	l_short		events;
785 	l_short		revents;
786 };
787 
788 struct l_user_desc {
789 	l_uint		entry_number;
790 	l_uint		base_addr;
791 	l_uint		limit;
792 	l_uint		seg_32bit:1;
793 	l_uint		contents:2;
794 	l_uint		read_exec_only:1;
795 	l_uint		limit_in_pages:1;
796 	l_uint		seg_not_present:1;
797 	l_uint		useable:1;
798 };
799 
800 struct l_desc_struct {
801 	unsigned long	a, b;
802 };
803 
804 
805 #define	LINUX_LOWERWORD	0x0000ffff
806 
807 /*
808  * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h.
809  * These convert Linux user space descriptor to machine one.
810  */
811 #define	LINUX_LDT_entry_a(info)					\
812 	((((info)->base_addr & LINUX_LOWERWORD) << 16) |	\
813 	((info)->limit & LINUX_LOWERWORD))
814 
815 #define	LINUX_ENTRY_B_READ_EXEC_ONLY	9
816 #define	LINUX_ENTRY_B_CONTENTS		10
817 #define	LINUX_ENTRY_B_SEG_NOT_PRESENT	15
818 #define	LINUX_ENTRY_B_BASE_ADDR		16
819 #define	LINUX_ENTRY_B_USEABLE		20
820 #define	LINUX_ENTRY_B_SEG32BIT		22
821 #define	LINUX_ENTRY_B_LIMIT		23
822 
823 #define	LINUX_LDT_entry_b(info)							\
824 	(((info)->base_addr & 0xff000000) |					\
825 	((info)->limit & 0xf0000) |						\
826 	((info)->contents << LINUX_ENTRY_B_CONTENTS) |				\
827 	(((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) |	\
828 	(((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) |		\
829 	(((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) |	\
830 	((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) |				\
831 	((info)->useable << LINUX_ENTRY_B_USEABLE) |				\
832 	((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000)
833 
834 #define	LINUX_LDT_empty(info)		\
835 	((info)->base_addr == 0 &&	\
836 	(info)->limit == 0 &&		\
837 	(info)->contents == 0 &&	\
838 	(info)->seg_not_present == 1 &&	\
839 	(info)->read_exec_only == 1 &&	\
840 	(info)->seg_32bit == 0 &&	\
841 	(info)->limit_in_pages == 0 &&	\
842 	(info)->useable == 0)
843 
844 /*
845  * Macros for converting segments.
846  * They do the same as those in arch/i386/kernel/process.c in Linux.
847  */
848 #define	LINUX_GET_BASE(desc)				\
849 	((((desc)->a >> 16) & LINUX_LOWERWORD) |	\
850 	(((desc)->b << 16) & 0x00ff0000) |		\
851 	((desc)->b & 0xff000000))
852 
853 #define	LINUX_GET_LIMIT(desc)			\
854 	(((desc)->a & LINUX_LOWERWORD) |	\
855 	((desc)->b & 0xf0000))
856 
857 #define	LINUX_GET_32BIT(desc)		\
858 	(((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1)
859 #define	LINUX_GET_CONTENTS(desc)	\
860 	(((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3)
861 #define	LINUX_GET_WRITABLE(desc)	\
862 	(((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1)
863 #define	LINUX_GET_LIMIT_PAGES(desc)	\
864 	(((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1)
865 #define	LINUX_GET_PRESENT(desc)		\
866 	(((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1)
867 #define	LINUX_GET_USEABLE(desc)		\
868 	(((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1)
869 
870 #define	LINUX_CLOCK_REALTIME		0
871 #define	LINUX_CLOCK_MONOTONIC		1
872 #define	LINUX_CLOCK_PROCESS_CPUTIME_ID	2
873 #define	LINUX_CLOCK_THREAD_CPUTIME_ID	3
874 #define	LINUX_CLOCK_REALTIME_HR		4
875 #define	LINUX_CLOCK_MONOTONIC_HR	5
876 
877 #define	LINUX_CLONE_VM			0x00000100
878 #define	LINUX_CLONE_FS			0x00000200
879 #define	LINUX_CLONE_FILES		0x00000400
880 #define	LINUX_CLONE_SIGHAND		0x00000800
881 #define	LINUX_CLONE_PID			0x00001000	/* No longer exist in Linux */
882 #define	LINUX_CLONE_VFORK		0x00004000
883 #define	LINUX_CLONE_PARENT		0x00008000
884 #define	LINUX_CLONE_THREAD		0x00010000
885 #define	LINUX_CLONE_SETTLS		0x00080000
886 #define	LINUX_CLONE_PARENT_SETTID	0x00100000
887 #define	LINUX_CLONE_CHILD_CLEARTID	0x00200000
888 #define	LINUX_CLONE_CHILD_SETTID	0x01000000
889 
890 #define	LINUX_THREADING_FLAGS					\
891 	(LINUX_CLONE_VM | LINUX_CLONE_FS | LINUX_CLONE_FILES |	\
892 	LINUX_CLONE_SIGHAND | LINUX_CLONE_THREAD)
893 
894 /* robust futexes */
895 struct linux_robust_list {
896 	struct linux_robust_list	*next;
897 };
898 
899 struct linux_robust_list_head {
900 	struct linux_robust_list	list;
901 	l_long				futex_offset;
902 	struct linux_robust_list	*pending_list;
903 };
904 
905 int linux_set_upcall_kse(struct thread *td, register_t stack);
906 int linux_set_cloned_tls(struct thread *td, void *desc);
907 
908 #endif /* !_I386_LINUX_H_ */
909