xref: /freebsd/sys/amd64/linux/linux.h (revision 7453645f2a9411a3f9d982b768bcc323f41cf906)
1 /*-
2  * Copyright (c) 2013 Dmitry Chagin
3  * Copyright (c) 1994-1996 Søren Schmidt
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer
11  *    in this position and unchanged.
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  * 3. The name of the author may not be used to endorse or promote products
16  *    derived from this software without specific prior written permission
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  *
29  * $FreeBSD$
30  */
31 
32 #ifndef _AMD64_LINUX_H_
33 #define	_AMD64_LINUX_H_
34 
35 #include <compat/linux/linux.h>
36 #include <amd64/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/%ld): "#nm"("fmt")\n",			\
44 			(long)td->td_proc->p_pid, (long)td->td_tid
45 #define	LMSG(fmt)	"linux(%ld/%ld): "fmt"\n",				\
46 			(long)td->td_proc->p_pid, (long)td->td_tid
47 #define	LINUX_DTRACE	linuxulator
48 
49 #define	PTRIN(v)	(void *)(v)
50 #define	PTROUT(v)	(uintptr_t)(v)
51 
52 #define	CP(src,dst,fld) do { (dst).fld = (src).fld; } while (0)
53 #define	CP2(src,dst,sfld,dfld) do { (dst).dfld = (src).sfld; } while (0)
54 #define	PTRIN_CP(src,dst,fld) \
55 	do { (dst).fld = PTRIN((src).fld); } while (0)
56 
57 /*
58  * Provide a separate set of types for the Linux types.
59  */
60 typedef int32_t		l_int;
61 typedef int64_t		l_long;
62 typedef int16_t		l_short;
63 typedef uint32_t	l_uint;
64 typedef uint64_t	l_ulong;
65 typedef uint16_t	l_ushort;
66 
67 typedef l_ulong		l_uintptr_t;
68 typedef l_long		l_clock_t;
69 typedef l_int		l_daddr_t;
70 typedef l_ulong		l_dev_t;
71 typedef l_uint		l_gid_t;
72 typedef l_uint		l_uid_t;
73 typedef l_ulong		l_ino_t;
74 typedef l_int		l_key_t;
75 typedef l_long		l_loff_t;
76 typedef l_uint		l_mode_t;
77 typedef l_long		l_off_t;
78 typedef l_int		l_pid_t;
79 typedef l_ulong		l_size_t;
80 typedef l_long		l_ssize_t;
81 typedef l_long		l_suseconds_t;
82 typedef l_long		l_time_t;
83 typedef l_int		l_timer_t;
84 typedef l_int		l_mqd_t;
85 typedef l_size_t	l_socklen_t;
86 typedef	l_ulong		l_fd_mask;
87 
88 typedef struct {
89 	l_int		val[2];
90 } l_fsid_t;
91 
92 typedef struct {
93 	l_time_t	tv_sec;
94 	l_suseconds_t	tv_usec;
95 } l_timeval;
96 
97 #define	l_fd_set	fd_set
98 
99 /*
100  * Miscellaneous
101  */
102 #define	LINUX_NAME_MAX		255
103 #define	LINUX_CTL_MAXNAME	10
104 
105 #define LINUX_AT_COUNT		19	/* Count of used aux entry types. */
106 
107 struct l___sysctl_args
108 {
109 	l_uintptr_t	name;
110 	l_int		nlen;
111 	l_uintptr_t	oldval;
112 	l_uintptr_t	oldlenp;
113 	l_uintptr_t	newval;
114 	l_size_t	newlen;
115 	l_ulong		__spare[4];
116 };
117 
118 /* Scheduling policies */
119 #define	LINUX_SCHED_OTHER	0
120 #define	LINUX_SCHED_FIFO	1
121 #define	LINUX_SCHED_RR		2
122 
123 /* Resource limits */
124 #define	LINUX_RLIMIT_CPU	0
125 #define	LINUX_RLIMIT_FSIZE	1
126 #define	LINUX_RLIMIT_DATA	2
127 #define	LINUX_RLIMIT_STACK	3
128 #define	LINUX_RLIMIT_CORE	4
129 #define	LINUX_RLIMIT_RSS	5
130 #define	LINUX_RLIMIT_NPROC	6
131 #define	LINUX_RLIMIT_NOFILE	7
132 #define	LINUX_RLIMIT_MEMLOCK	8
133 #define	LINUX_RLIMIT_AS		9	/* Address space limit */
134 
135 #define	LINUX_RLIM_NLIMITS	10
136 
137 struct l_rlimit {
138 	l_ulong		rlim_cur;
139 	l_ulong		rlim_max;
140 };
141 
142 /*
143  * stat family of syscalls
144  */
145 struct l_timespec {
146 	l_time_t	tv_sec;
147 	l_long		tv_nsec;
148 };
149 
150 struct l_newstat {
151 	l_dev_t		st_dev;
152 	l_ino_t		st_ino;
153 	l_ulong		st_nlink;
154 	l_uint		st_mode;
155 	l_uid_t		st_uid;
156 	l_gid_t		st_gid;
157 	l_uint		__st_pad1;
158 	l_dev_t		st_rdev;
159 	l_off_t		st_size;
160 	l_long		st_blksize;
161 	l_long		st_blocks;
162 	struct l_timespec	st_atim;
163 	struct l_timespec	st_mtim;
164 	struct l_timespec	st_ctim;
165 	l_long		__unused1;
166 	l_long		__unused2;
167 	l_long		__unused3;
168 };
169 
170 /* sigaction flags */
171 #define	LINUX_SA_NOCLDSTOP	0x00000001
172 #define	LINUX_SA_NOCLDWAIT	0x00000002
173 #define	LINUX_SA_SIGINFO	0x00000004
174 #define	LINUX_SA_RESTORER	0x04000000
175 #define	LINUX_SA_ONSTACK	0x08000000
176 #define	LINUX_SA_RESTART	0x10000000
177 #define	LINUX_SA_INTERRUPT	0x20000000
178 #define	LINUX_SA_NOMASK		0x40000000
179 #define	LINUX_SA_ONESHOT	0x80000000
180 
181 /* sigprocmask actions */
182 #define	LINUX_SIG_BLOCK		0
183 #define	LINUX_SIG_UNBLOCK	1
184 #define	LINUX_SIG_SETMASK	2
185 
186 /* sigaltstack */
187 #define	LINUX_MINSIGSTKSZ	2048
188 
189 typedef void	(*l_handler_t)(l_int);
190 
191 typedef struct {
192 	l_handler_t	lsa_handler;
193 	l_ulong		lsa_flags;
194 	l_uintptr_t	lsa_restorer;
195 	l_sigset_t	lsa_mask;
196 } l_sigaction_t;
197 
198 typedef struct {
199 	l_uintptr_t	ss_sp;
200 	l_int		ss_flags;
201 	l_size_t	ss_size;
202 } l_stack_t;
203 
204 struct l_fpstate {
205 	u_int16_t cwd;
206 	u_int16_t swd;
207 	u_int16_t twd;
208 	u_int16_t fop;
209 	u_int64_t rip;
210 	u_int64_t rdp;
211 	u_int32_t mxcsr;
212 	u_int32_t mxcsr_mask;
213 	u_int32_t st_space[32];
214 	u_int32_t xmm_space[64];
215 	u_int32_t reserved2[24];
216 };
217 
218 struct l_sigcontext {
219 	l_ulong		sc_r8;
220 	l_ulong		sc_r9;
221 	l_ulong		sc_r10;
222 	l_ulong		sc_r11;
223 	l_ulong		sc_r12;
224 	l_ulong		sc_r13;
225 	l_ulong		sc_r14;
226 	l_ulong		sc_r15;
227 	l_ulong		sc_rdi;
228 	l_ulong		sc_rsi;
229 	l_ulong		sc_rbp;
230 	l_ulong		sc_rbx;
231 	l_ulong		sc_rdx;
232 	l_ulong		sc_rax;
233 	l_ulong		sc_rcx;
234 	l_ulong		sc_rsp;
235 	l_ulong		sc_rip;
236 	l_ulong		sc_rflags;
237 	l_ushort	sc_cs;
238 	l_ushort	sc_gs;
239 	l_ushort	sc_fs;
240 	l_ushort	sc___pad0;
241 	l_ulong		sc_err;
242 	l_ulong		sc_trapno;
243 	l_sigset_t	sc_mask;
244 	l_ulong		sc_cr2;
245 	struct l_fpstate *sc_fpstate;
246 	l_ulong		sc_reserved1[8];
247 };
248 
249 struct l_ucontext {
250 	l_ulong		uc_flags;
251 	l_uintptr_t	uc_link;
252 	l_stack_t	uc_stack;
253 	struct l_sigcontext	uc_mcontext;
254 	l_sigset_t	uc_sigmask;
255 };
256 
257 #define LINUX_SI_PREAMBLE_SIZE	(4 * sizeof(int))
258 #define	LINUX_SI_MAX_SIZE	128
259 #define	LINUX_SI_PAD_SIZE	((LINUX_SI_MAX_SIZE - \
260 				    LINUX_SI_PREAMBLE_SIZE) / sizeof(l_int))
261 typedef union l_sigval {
262 	l_int		sival_int;
263 	l_uintptr_t	sival_ptr;
264 } l_sigval_t;
265 
266 typedef struct l_siginfo {
267 	l_int		lsi_signo;
268 	l_int		lsi_errno;
269 	l_int		lsi_code;
270 	union {
271 		l_int	_pad[LINUX_SI_PAD_SIZE];
272 
273 		struct {
274 			l_pid_t		_pid;
275 			l_uid_t		_uid;
276 		} _kill;
277 
278 		struct {
279 			l_timer_t	_tid;
280 			l_int		_overrun;
281 			char		_pad[sizeof(l_uid_t) - sizeof(int)];
282 			union l_sigval	_sigval;
283 			l_uint		_sys_private;
284 		} _timer;
285 
286 		struct {
287 			l_pid_t		_pid;		/* sender's pid */
288 			l_uid_t		_uid;		/* sender's uid */
289 			union l_sigval	_sigval;
290 		} _rt;
291 
292 		struct {
293 			l_pid_t		_pid;		/* which child */
294 			l_uid_t		_uid;		/* sender's uid */
295 			l_int		_status;	/* exit code */
296 			l_clock_t	_utime;
297 			l_clock_t	_stime;
298 		} _sigchld;
299 
300 		struct {
301 			l_uintptr_t	_addr;	/* Faulting insn/memory ref. */
302 		} _sigfault;
303 
304 		struct {
305 			l_long		_band;	/* POLL_IN,POLL_OUT,POLL_MSG */
306 			l_int		_fd;
307 		} _sigpoll;
308 	} _sifields;
309 } l_siginfo_t;
310 
311 #define	lsi_pid		_sifields._kill._pid
312 #define	lsi_uid		_sifields._kill._uid
313 #define	lsi_tid		_sifields._timer._tid
314 #define	lsi_overrun	_sifields._timer._overrun
315 #define	lsi_sys_private	_sifields._timer._sys_private
316 #define	lsi_status	_sifields._sigchld._status
317 #define	lsi_utime	_sifields._sigchld._utime
318 #define	lsi_stime	_sifields._sigchld._stime
319 #define	lsi_value	_sifields._rt._sigval
320 #define	lsi_int		_sifields._rt._sigval.sival_int
321 #define	lsi_ptr		_sifields._rt._sigval.sival_ptr
322 #define	lsi_addr	_sifields._sigfault._addr
323 #define	lsi_band	_sifields._sigpoll._band
324 #define	lsi_fd		_sifields._sigpoll._fd
325 
326 /*
327  * We make the stack look like Linux expects it when calling a signal
328  * handler, but use the BSD way of calling the handler and sigreturn().
329  * This means that we need to pass the pointer to the handler too.
330  * It is appended to the frame to not interfere with the rest of it.
331  */
332 
333 struct l_rt_sigframe {
334 	struct l_ucontext	sf_sc;
335 	struct l_siginfo	sf_si;
336 	l_handler_t		sf_handler;
337 };
338 
339 /*
340  * mount flags
341  */
342 #define	LINUX_MS_RDONLY		0x0001
343 #define	LINUX_MS_NOSUID		0x0002
344 #define	LINUX_MS_NODEV		0x0004
345 #define	LINUX_MS_NOEXEC		0x0008
346 #define	LINUX_MS_REMOUNT	0x0020
347 
348 /*
349  * SystemV IPC defines
350  */
351 #define	LINUX_IPC_RMID		0
352 #define	LINUX_IPC_SET		1
353 #define	LINUX_IPC_STAT		2
354 #define	LINUX_IPC_INFO		3
355 
356 #define	LINUX_SHM_LOCK		11
357 #define	LINUX_SHM_UNLOCK	12
358 #define	LINUX_SHM_STAT		13
359 #define	LINUX_SHM_INFO		14
360 
361 #define	LINUX_SHM_RDONLY	0x1000
362 #define	LINUX_SHM_RND		0x2000
363 #define	LINUX_SHM_REMAP		0x4000
364 
365 /* semctl commands */
366 #define	LINUX_GETPID		11
367 #define	LINUX_GETVAL		12
368 #define	LINUX_GETALL		13
369 #define	LINUX_GETNCNT		14
370 #define	LINUX_GETZCNT		15
371 #define	LINUX_SETVAL		16
372 #define	LINUX_SETALL		17
373 #define	LINUX_SEM_STAT		18
374 #define	LINUX_SEM_INFO		19
375 
376 union l_semun {
377 	l_int		val;
378 	l_uintptr_t	buf;
379 	l_uintptr_t	array;
380 	l_uintptr_t	__buf;
381 	l_uintptr_t	__pad;
382 };
383 
384 struct l_ipc_perm {
385 	l_key_t		key;
386 	l_uid_t		uid;
387 	l_gid_t		gid;
388 	l_uid_t		cuid;
389 	l_gid_t		cgid;
390 	l_ushort	mode;
391 	l_ushort	seq;
392 };
393 
394 /*
395  * Socket defines
396  */
397 
398 #define	LINUX_SOL_SOCKET	1
399 #define	LINUX_SOL_IP		0
400 #define	LINUX_SOL_IPX		256
401 #define	LINUX_SOL_AX25		257
402 #define	LINUX_SOL_TCP		6
403 #define	LINUX_SOL_UDP		17
404 
405 #define	LINUX_SO_DEBUG		1
406 #define	LINUX_SO_REUSEADDR	2
407 #define	LINUX_SO_TYPE		3
408 #define	LINUX_SO_ERROR		4
409 #define	LINUX_SO_DONTROUTE	5
410 #define	LINUX_SO_BROADCAST	6
411 #define	LINUX_SO_SNDBUF		7
412 #define	LINUX_SO_RCVBUF		8
413 #define	LINUX_SO_KEEPALIVE	9
414 #define	LINUX_SO_OOBINLINE	10
415 #define	LINUX_SO_NO_CHECK	11
416 #define	LINUX_SO_PRIORITY	12
417 #define	LINUX_SO_LINGER		13
418 #define	LINUX_SO_PASSCRED	16
419 #define	LINUX_SO_PEERCRED	17
420 #define	LINUX_SO_RCVLOWAT	18
421 #define	LINUX_SO_SNDLOWAT	19
422 #define	LINUX_SO_RCVTIMEO	20
423 #define	LINUX_SO_SNDTIMEO	21
424 #define	LINUX_SO_TIMESTAMP	29
425 #define	LINUX_SO_ACCEPTCONN	30
426 
427 #define	LINUX_IP_TOS		1
428 #define	LINUX_IP_TTL		2
429 #define	LINUX_IP_HDRINCL	3
430 #define	LINUX_IP_OPTIONS	4
431 
432 #define	LINUX_IP_MULTICAST_IF		32
433 #define	LINUX_IP_MULTICAST_TTL		33
434 #define	LINUX_IP_MULTICAST_LOOP		34
435 #define	LINUX_IP_ADD_MEMBERSHIP		35
436 #define	LINUX_IP_DROP_MEMBERSHIP	36
437 
438 struct l_sockaddr {
439 	l_ushort	sa_family;
440 	char		sa_data[14];
441 };
442 
443 struct l_ifmap {
444 	l_ulong		mem_start;
445 	l_ulong		mem_end;
446 	l_ushort	base_addr;
447 	u_char		irq;
448 	u_char		dma;
449 	u_char		port;
450 } __packed;
451 
452 #define	LINUX_IFHWADDRLEN	6
453 #define	LINUX_IFNAMSIZ		16
454 
455 struct l_ifreq {
456 	union {
457 		char	ifrn_name[LINUX_IFNAMSIZ];
458 	} ifr_ifrn;
459 
460 	union {
461 		struct l_sockaddr	ifru_addr;
462 		struct l_sockaddr	ifru_dstaddr;
463 		struct l_sockaddr	ifru_broadaddr;
464 		struct l_sockaddr	ifru_netmask;
465 		struct l_sockaddr	ifru_hwaddr;
466 		l_short		ifru_flags[1];
467 		l_int		ifru_metric;
468 		l_int		ifru_mtu;
469 		struct l_ifmap	ifru_map;
470 		char		ifru_slave[LINUX_IFNAMSIZ];
471 		l_uintptr_t	ifru_data;
472 	} ifr_ifru;
473 } __packed;
474 
475 #define	ifr_name	ifr_ifrn.ifrn_name	/* Interface name */
476 #define	ifr_hwaddr	ifr_ifru.ifru_hwaddr	/* MAC address */
477 
478 struct l_ifconf {
479 	int	ifc_len;
480 	union {
481 		l_uintptr_t	ifcu_buf;
482 		l_uintptr_t	ifcu_req;
483 	} ifc_ifcu;
484 };
485 
486 #define	ifc_buf		ifc_ifcu.ifcu_buf
487 #define	ifc_req		ifc_ifcu.ifcu_req
488 
489 /*
490  * poll()
491  */
492 #define	LINUX_POLLIN		0x0001
493 #define	LINUX_POLLPRI		0x0002
494 #define	LINUX_POLLOUT		0x0004
495 #define	LINUX_POLLERR		0x0008
496 #define	LINUX_POLLHUP		0x0010
497 #define	LINUX_POLLNVAL		0x0020
498 #define	LINUX_POLLRDNORM	0x0040
499 #define	LINUX_POLLRDBAND	0x0080
500 #define	LINUX_POLLWRNORM	0x0100
501 #define	LINUX_POLLWRBAND	0x0200
502 #define	LINUX_POLLMSG		0x0400
503 
504 struct l_pollfd {
505 	l_int		fd;
506 	l_short		events;
507 	l_short		revents;
508 };
509 
510 
511 #define	LINUX_CLONE_VM			0x00000100
512 #define	LINUX_CLONE_FS			0x00000200
513 #define	LINUX_CLONE_FILES		0x00000400
514 #define	LINUX_CLONE_SIGHAND		0x00000800
515 #define	LINUX_CLONE_PID			0x00001000	/* No longer exist in Linux */
516 #define	LINUX_CLONE_VFORK		0x00004000
517 #define	LINUX_CLONE_PARENT		0x00008000
518 #define	LINUX_CLONE_THREAD		0x00010000
519 #define	LINUX_CLONE_SETTLS		0x00080000
520 #define	LINUX_CLONE_PARENT_SETTID	0x00100000
521 #define	LINUX_CLONE_CHILD_CLEARTID	0x00200000
522 #define	LINUX_CLONE_CHILD_SETTID	0x01000000
523 
524 #define LINUX_ARCH_SET_GS		0x1001
525 #define LINUX_ARCH_SET_FS		0x1002
526 #define LINUX_ARCH_GET_FS		0x1003
527 #define LINUX_ARCH_GET_GS		0x1004
528 
529 #define	linux_copyout_rusage(r, u)	copyout(r, u, sizeof(*r))
530 
531 /* robust futexes */
532 struct linux_robust_list {
533 	l_uintptr_t			next;
534 };
535 
536 struct linux_robust_list_head {
537 	struct linux_robust_list	list;
538 	l_long				futex_offset;
539 	l_uintptr_t			pending_list;
540 };
541 
542 #endif /* !_AMD64_LINUX_H_ */
543