xref: /freebsd/sys/i386/linux/linux.h (revision c37420b0d5b3b6ef875fbf0b84a13f6f09be56d6)
1 /*-
2  * Copyright (c) 1994-1996 S�ren 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_LINUX_H_
32 #define	_I386_LINUX_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 
46 #ifdef MALLOC_DECLARE
47 MALLOC_DECLARE(M_LINUX);
48 #endif
49 
50 #define	PTRIN(v)	(void *)(v)
51 #define	PTROUT(v)	(l_uintptr_t)(v)
52 
53 /*
54  * Provide a separate set of types for the Linux types.
55  */
56 typedef int		l_int;
57 typedef int32_t		l_long;
58 typedef int64_t		l_longlong;
59 typedef short		l_short;
60 typedef unsigned int	l_uint;
61 typedef uint32_t	l_ulong;
62 typedef uint64_t	l_ulonglong;
63 typedef unsigned short	l_ushort;
64 
65 typedef char		*l_caddr_t;
66 typedef l_ulong		l_uintptr_t;
67 typedef l_long		l_clock_t;
68 typedef l_int		l_daddr_t;
69 typedef l_ushort	l_dev_t;
70 typedef l_uint		l_gid_t;
71 typedef l_ushort	l_gid16_t;
72 typedef l_ulong		l_ino_t;
73 typedef l_int		l_key_t;
74 typedef l_longlong	l_loff_t;
75 typedef l_ushort	l_mode_t;
76 typedef l_long		l_off_t;
77 typedef l_int		l_pid_t;
78 typedef l_uint		l_size_t;
79 typedef l_long		l_suseconds_t;
80 typedef l_long		l_time_t;
81 typedef l_uint		l_uid_t;
82 typedef l_ushort	l_uid16_t;
83 
84 typedef struct {
85 	l_int		val[2];
86 } l_fsid_t;
87 
88 typedef struct {
89 	l_time_t	tv_sec;
90 	l_suseconds_t	tv_usec;
91 } l_timeval;
92 
93 #define	l_fd_set	fd_set
94 
95 /*
96  * Miscellaneous
97  */
98 #define	LINUX_NAME_MAX		255
99 #define	LINUX_MAX_UTSNAME	65
100 
101 #define	LINUX_CTL_MAXNAME	10
102 
103 struct l___sysctl_args
104 {
105 	l_int		*name;
106 	l_int		nlen;
107 	void		*oldval;
108 	l_size_t	*oldlenp;
109 	void		*newval;
110 	l_size_t	newlen;
111 	l_ulong		__spare[4];
112 };
113 
114 /* Scheduling policies */
115 #define	LINUX_SCHED_OTHER	0
116 #define	LINUX_SCHED_FIFO	1
117 #define	LINUX_SCHED_RR		2
118 
119 /* Resource limits */
120 #define	LINUX_RLIMIT_CPU	0
121 #define	LINUX_RLIMIT_FSIZE	1
122 #define	LINUX_RLIMIT_DATA	2
123 #define	LINUX_RLIMIT_STACK	3
124 #define	LINUX_RLIMIT_CORE	4
125 #define	LINUX_RLIMIT_RSS	5
126 #define	LINUX_RLIMIT_NPROC	6
127 #define	LINUX_RLIMIT_NOFILE	7
128 #define	LINUX_RLIMIT_MEMLOCK	8
129 #define	LINUX_RLIMIT_AS		9       /* address space limit */
130 
131 #define	LINUX_RLIM_NLIMITS	10
132 
133 struct l_rlimit {
134 	l_ulong rlim_cur;
135 	l_ulong rlim_max;
136 };
137 
138 /* mmap options */
139 #define	LINUX_MAP_SHARED	0x0001
140 #define	LINUX_MAP_PRIVATE	0x0002
141 #define	LINUX_MAP_FIXED		0x0010
142 #define	LINUX_MAP_ANON		0x0020
143 #define	LINUX_MAP_GROWSDOWN	0x0100
144 
145 /*
146  * stat family of syscalls
147  */
148 struct l_timespec {
149 	l_ulong		tv_sec;
150 	l_ulong		tv_nsec;
151 };
152 
153 struct l_newstat {
154 	l_ushort	st_dev;
155 	l_ushort	__pad1;
156 	l_ulong		st_ino;
157 	l_ushort	st_mode;
158 	l_ushort	st_nlink;
159 	l_ushort	st_uid;
160 	l_ushort	st_gid;
161 	l_ushort	st_rdev;
162 	l_ushort	__pad2;
163 	l_ulong		st_size;
164 	l_ulong		st_blksize;
165 	l_ulong		st_blocks;
166 	struct l_timespec	st_atimespec;
167 	struct l_timespec	st_mtimespec;
168 	struct l_timespec	st_ctimespec;
169 	l_ulong		__unused4;
170 	l_ulong		__unused5;
171 };
172 
173 struct l_stat64 {
174 	l_ushort	st_dev;
175 	u_char		__pad0[10];
176 	l_ulong		__st_ino;
177 	l_uint		st_mode;
178 	l_uint		st_nlink;
179 	l_ulong		st_uid;
180 	l_ulong		st_gid;
181 	l_ushort	st_rdev;
182 	u_char		__pad3[10];
183 	l_longlong	st_size;
184 	l_ulong		st_blksize;
185 	l_ulong		st_blocks;
186 	l_ulong		__pad4;
187 	struct l_timespec	st_atimespec;
188 	struct l_timespec	st_mtimespec;
189 	struct l_timespec	st_ctimespec;
190 	l_ulonglong	st_ino;
191 };
192 
193 struct l_new_utsname {
194 	char	sysname[LINUX_MAX_UTSNAME];
195 	char	nodename[LINUX_MAX_UTSNAME];
196 	char	release[LINUX_MAX_UTSNAME];
197 	char	version[LINUX_MAX_UTSNAME];
198 	char	machine[LINUX_MAX_UTSNAME];
199 	char	domainname[LINUX_MAX_UTSNAME];
200 };
201 
202 /*
203  * Signalling
204  */
205 #define	LINUX_SIGHUP		1
206 #define	LINUX_SIGINT		2
207 #define	LINUX_SIGQUIT		3
208 #define	LINUX_SIGILL		4
209 #define	LINUX_SIGTRAP		5
210 #define	LINUX_SIGABRT		6
211 #define	LINUX_SIGIOT		LINUX_SIGABRT
212 #define	LINUX_SIGBUS		7
213 #define	LINUX_SIGFPE		8
214 #define	LINUX_SIGKILL		9
215 #define	LINUX_SIGUSR1		10
216 #define	LINUX_SIGSEGV		11
217 #define	LINUX_SIGUSR2		12
218 #define	LINUX_SIGPIPE		13
219 #define	LINUX_SIGALRM		14
220 #define	LINUX_SIGTERM		15
221 #define	LINUX_SIGSTKFLT		16
222 #define	LINUX_SIGCHLD		17
223 #define	LINUX_SIGCONT		18
224 #define	LINUX_SIGSTOP		19
225 #define	LINUX_SIGTSTP		20
226 #define	LINUX_SIGTTIN		21
227 #define	LINUX_SIGTTOU		22
228 #define	LINUX_SIGURG		23
229 #define	LINUX_SIGXCPU		24
230 #define	LINUX_SIGXFSZ		25
231 #define	LINUX_SIGVTALRM		26
232 #define	LINUX_SIGPROF		27
233 #define	LINUX_SIGWINCH		28
234 #define	LINUX_SIGIO		29
235 #define	LINUX_SIGPOLL		LINUX_SIGIO
236 #define	LINUX_SIGPWR		30
237 #define	LINUX_SIGSYS		31
238 
239 #define	LINUX_SIGTBLSZ		31
240 #define	LINUX_NSIG_WORDS	2
241 #define	LINUX_NBPW		32
242 #define	LINUX_NSIG		(LINUX_NBPW * LINUX_NSIG_WORDS)
243 
244 /* sigaction flags */
245 #define	LINUX_SA_NOCLDSTOP	0x00000001
246 #define	LINUX_SA_NOCLDWAIT	0x00000002
247 #define	LINUX_SA_SIGINFO	0x00000004
248 #define	LINUX_SA_RESTORER	0x04000000
249 #define	LINUX_SA_ONSTACK	0x08000000
250 #define	LINUX_SA_RESTART	0x10000000
251 #define	LINUX_SA_INTERRUPT	0x20000000
252 #define	LINUX_SA_NOMASK		0x40000000
253 #define	LINUX_SA_ONESHOT	0x80000000
254 
255 /* sigprocmask actions */
256 #define	LINUX_SIG_BLOCK		0
257 #define	LINUX_SIG_UNBLOCK	1
258 #define	LINUX_SIG_SETMASK	2
259 
260 /* sigset_t macros */
261 #define	LINUX_SIGEMPTYSET(set)		(set).__bits[0] = (set).__bits[1] = 0
262 #define	LINUX_SIGISMEMBER(set, sig)	SIGISMEMBER(set, sig)
263 #define	LINUX_SIGADDSET(set, sig)	SIGADDSET(set, sig)
264 
265 /* sigaltstack */
266 #define LINUX_MINSIGSTKSZ	2048
267 #define LINUX_SS_ONSTACK	1
268 #define LINUX_SS_DISABLE	2
269 
270 int linux_to_bsd_sigaltstack(int lsa);
271 int bsd_to_linux_sigaltstack(int bsa);
272 
273 typedef void	(*l_handler_t)(l_int);
274 typedef l_ulong	l_osigset_t;
275 
276 typedef struct {
277 	l_uint	__bits[LINUX_NSIG_WORDS];
278 } l_sigset_t;
279 
280 typedef struct {
281 	l_handler_t	lsa_handler;
282 	l_osigset_t	lsa_mask;
283 	l_ulong		lsa_flags;
284 	void	(*lsa_restorer)(void);
285 } l_osigaction_t;
286 
287 typedef struct {
288 	l_handler_t	lsa_handler;
289 	l_ulong		lsa_flags;
290 	void	(*lsa_restorer)(void);
291 	l_sigset_t	lsa_mask;
292 } l_sigaction_t;
293 
294 typedef struct {
295 	void		*ss_sp;
296 	l_int		ss_flags;
297 	l_size_t	ss_size;
298 } l_stack_t;
299 
300 /* The Linux sigcontext, pretty much a standard 386 trapframe. */
301 struct l_sigcontext {
302 	l_int		sc_gs;
303 	l_int		sc_fs;
304 	l_int		sc_es;
305 	l_int		sc_ds;
306 	l_int		sc_edi;
307 	l_int		sc_esi;
308 	l_int		sc_ebp;
309 	l_int		sc_esp;
310 	l_int		sc_ebx;
311 	l_int		sc_edx;
312 	l_int		sc_ecx;
313 	l_int		sc_eax;
314 	l_int		sc_trapno;
315 	l_int		sc_err;
316 	l_int		sc_eip;
317 	l_int		sc_cs;
318 	l_int		sc_eflags;
319 	l_int		sc_esp_at_signal;
320 	l_int		sc_ss;
321 	l_int		sc_387;
322 	l_int		sc_mask;
323 	l_int		sc_cr2;
324 };
325 
326 struct l_ucontext {
327 	l_ulong		uc_flags;
328 	void		*uc_link;
329 	l_stack_t	uc_stack;
330 	struct l_sigcontext	uc_mcontext;
331         l_sigset_t	uc_sigmask;
332 };
333 
334 #define LINUX_SI_MAX_SIZE     128
335 #define LINUX_SI_PAD_SIZE     ((LINUX_SI_MAX_SIZE/sizeof(l_int)) - 3)
336 
337 typedef struct l_siginfo {
338 	l_int		lsi_signo;
339 	l_int		lsi_errno;
340 	l_int		lsi_code;
341 	union {
342 		l_int	_pad[LINUX_SI_PAD_SIZE];
343 
344 		struct {
345 			l_pid_t		_pid;
346 			l_uid16_t	_uid;
347 		} _kill;
348 
349 		struct {
350 			l_uint		_timer1;
351 			l_uint		_timer2;
352 		} _timer;
353 
354 		struct {
355 			l_pid_t		_pid;		/* sender's pid */
356 			l_uid16_t	_uid;		/* sender's uid */
357 			union sigval _sigval;
358 		} _rt;
359 
360 		struct {
361 			l_pid_t		_pid;		/* which child */
362 			l_uid16_t	_uid;		/* sender's uid */
363 			l_int		_status;	/* exit code */
364 			l_clock_t	_utime;
365 			l_clock_t	_stime;
366 		} _sigchld;
367 
368 		struct {
369 			void		*_addr; /* faulting insn/memory ref. */
370 		} _sigfault;
371 
372 		struct {
373 			l_int		_band;  /* POLL_IN,POLL_OUT,POLL_MSG */
374 			l_int		_fd;
375 		} _sigpoll;
376 	} _sifields;
377 } l_siginfo_t;
378 
379 #define lsi_pid          _sifields._kill._pid
380 #define lsi_uid          _sifields._kill._uid
381 #define lsi_status       _sifields._sigchld._status
382 #define lsi_utime        _sifields._sigchld._utime
383 #define lsi_stime        _sifields._sigchld._stime
384 #define lsi_value        _sifields._rt._sigval
385 #define lsi_int          _sifields._rt._sigval.sival_int
386 #define lsi_ptr          _sifields._rt._sigval.sival_ptr
387 #define lsi_addr         _sifields._sigfault._addr
388 #define lsi_band         _sifields._sigpoll._band
389 #define lsi_fd           _sifields._sigpoll._fd
390 
391 struct l_fpreg {
392 	u_int16_t significand[4];
393 	u_int16_t exponent;
394 };
395 
396 struct l_fpxreg {
397 	u_int16_t significand[4];
398 	u_int16_t exponent;
399 	u_int16_t padding[3];
400 };
401 
402 struct l_xmmreg {
403 	u_int32_t element[4];
404 };
405 
406 struct l_fpstate {
407 	/* Regular FPU environment */
408 	u_int32_t		cw;
409 	u_int32_t		sw;
410 	u_int32_t		tag;
411 	u_int32_t		ipoff;
412 	u_int32_t		cssel;
413 	u_int32_t		dataoff;
414 	u_int32_t		datasel;
415 	struct l_fpreg		_st[8];
416 	u_int16_t		status;
417 	u_int16_t		magic;  /* 0xffff = regular FPU data */
418 
419 	/* FXSR FPU environment */
420 	u_int32_t		_fxsr_env[6]; /* env is ignored */
421 	u_int32_t		mxcsr;
422 	u_int32_t		reserved;
423 	struct l_fpxreg		_fxsr_st[8];  /* reg data is ignored */
424 	struct l_xmmreg		_xmm[8];
425 	u_int32_t		padding[56];
426 };
427 
428 /*
429  * We make the stack look like Linux expects it when calling a signal
430  * handler, but use the BSD way of calling the handler and sigreturn().
431  * This means that we need to pass the pointer to the handler too.
432  * It is appended to the frame to not interfere with the rest of it.
433  */
434 struct l_sigframe {
435 	l_int			sf_sig;
436 	struct l_sigcontext	sf_sc;
437 	struct l_fpstate	sf_fpstate;
438 	l_uint			sf_extramask[LINUX_NSIG_WORDS-1];
439 	l_handler_t		sf_handler;
440 };
441 
442 struct l_rt_sigframe {
443 	l_int			sf_sig;
444 	l_siginfo_t 		*sf_siginfo;
445 	struct l_ucontext	*sf_ucontext;
446 	l_siginfo_t		sf_si;
447 	struct l_ucontext 	sf_sc;
448 	l_handler_t 		sf_handler;
449 };
450 
451 extern int bsd_to_linux_signal[];
452 extern int linux_to_bsd_signal[];
453 extern struct sysentvec linux_sysvec;
454 extern struct sysentvec elf_linux_sysvec;
455 
456 /*
457  * Pluggable ioctl handlers
458  */
459 struct linux_ioctl_args;
460 struct thread;
461 
462 typedef int linux_ioctl_function_t(struct thread *, struct linux_ioctl_args *);
463 
464 struct linux_ioctl_handler {
465 	linux_ioctl_function_t *func;
466 	int	low, high;
467 };
468 
469 int	linux_ioctl_register_handler(struct linux_ioctl_handler *h);
470 int	linux_ioctl_unregister_handler(struct linux_ioctl_handler *h);
471 
472 /*
473  * open/fcntl flags
474  */
475 #define	LINUX_O_RDONLY		00
476 #define	LINUX_O_WRONLY		01
477 #define	LINUX_O_RDWR		02
478 #define	LINUX_O_CREAT		0100
479 #define	LINUX_O_EXCL		0200
480 #define	LINUX_O_NOCTTY		0400
481 #define	LINUX_O_TRUNC		01000
482 #define	LINUX_O_APPEND		02000
483 #define	LINUX_O_NONBLOCK	04000
484 #define	LINUX_O_NDELAY		LINUX_O_NONBLOCK
485 #define	LINUX_O_SYNC		010000
486 #define	LINUX_FASYNC		020000
487 
488 #define	LINUX_F_DUPFD		0
489 #define	LINUX_F_GETFD		1
490 #define	LINUX_F_SETFD		2
491 #define	LINUX_F_GETFL		3
492 #define	LINUX_F_SETFL		4
493 #define	LINUX_F_GETLK		5
494 #define	LINUX_F_SETLK		6
495 #define	LINUX_F_SETLKW		7
496 #define	LINUX_F_SETOWN		8
497 #define	LINUX_F_GETOWN		9
498 
499 #define	LINUX_F_GETLK64		12
500 #define	LINUX_F_SETLK64		13
501 #define	LINUX_F_SETLKW64	14
502 
503 #define	LINUX_F_RDLCK		0
504 #define	LINUX_F_WRLCK		1
505 #define	LINUX_F_UNLCK		2
506 
507 /*
508  * mount flags
509  */
510 #define LINUX_MS_RDONLY         0x0001
511 #define LINUX_MS_NOSUID         0x0002
512 #define LINUX_MS_NODEV          0x0004
513 #define LINUX_MS_NOEXEC         0x0008
514 #define LINUX_MS_REMOUNT        0x0020
515 
516 /*
517  * SystemV IPC defines
518  */
519 #define	LINUX_SEMOP		1
520 #define	LINUX_SEMGET		2
521 #define	LINUX_SEMCTL		3
522 #define	LINUX_MSGSND		11
523 #define	LINUX_MSGRCV		12
524 #define	LINUX_MSGGET		13
525 #define	LINUX_MSGCTL		14
526 #define	LINUX_SHMAT		21
527 #define	LINUX_SHMDT		22
528 #define	LINUX_SHMGET		23
529 #define	LINUX_SHMCTL		24
530 
531 #define	LINUX_IPC_RMID		0
532 #define	LINUX_IPC_SET		1
533 #define	LINUX_IPC_STAT		2
534 #define	LINUX_IPC_INFO		3
535 
536 #define	LINUX_SHM_LOCK		11
537 #define	LINUX_SHM_UNLOCK	12
538 #define	LINUX_SHM_STAT		13
539 #define	LINUX_SHM_INFO		14
540 
541 #define	LINUX_SHM_RDONLY	0x1000
542 #define	LINUX_SHM_RND		0x2000
543 #define	LINUX_SHM_REMAP		0x4000
544 
545 /* semctl commands */
546 #define	LINUX_GETPID		11
547 #define	LINUX_GETVAL		12
548 #define	LINUX_GETALL		13
549 #define	LINUX_GETNCNT		14
550 #define	LINUX_GETZCNT		15
551 #define	LINUX_SETVAL		16
552 #define	LINUX_SETALL		17
553 #define	LINUX_SEM_STAT		18
554 #define	LINUX_SEM_INFO		19
555 
556 union l_semun {
557 	l_int		val;
558 	struct l_semid_ds	*buf;
559 	l_ushort	*array;
560 	struct l_seminfo	*__buf;
561 	void		*__pad;
562 };
563 
564 /*
565  * Socket defines
566  */
567 #define	LINUX_SOCKET 		1
568 #define	LINUX_BIND		2
569 #define	LINUX_CONNECT 		3
570 #define	LINUX_LISTEN 		4
571 #define	LINUX_ACCEPT 		5
572 #define	LINUX_GETSOCKNAME	6
573 #define	LINUX_GETPEERNAME	7
574 #define	LINUX_SOCKETPAIR	8
575 #define	LINUX_SEND		9
576 #define	LINUX_RECV		10
577 #define	LINUX_SENDTO 		11
578 #define	LINUX_RECVFROM 		12
579 #define	LINUX_SHUTDOWN 		13
580 #define	LINUX_SETSOCKOPT	14
581 #define	LINUX_GETSOCKOPT	15
582 #define	LINUX_SENDMSG		16
583 #define	LINUX_RECVMSG		17
584 
585 #define	LINUX_AF_UNSPEC		0
586 #define	LINUX_AF_UNIX		1
587 #define	LINUX_AF_INET		2
588 #define	LINUX_AF_AX25		3
589 #define	LINUX_AF_IPX		4
590 #define	LINUX_AF_APPLETALK	5
591 #define	LINUX_AF_INET6		10
592 
593 #define	LINUX_SOL_SOCKET	1
594 #define	LINUX_SOL_IP		0
595 #define	LINUX_SOL_IPX		256
596 #define	LINUX_SOL_AX25		257
597 #define	LINUX_SOL_TCP		6
598 #define	LINUX_SOL_UDP		17
599 
600 #define	LINUX_SO_DEBUG		1
601 #define	LINUX_SO_REUSEADDR	2
602 #define	LINUX_SO_TYPE		3
603 #define	LINUX_SO_ERROR		4
604 #define	LINUX_SO_DONTROUTE	5
605 #define	LINUX_SO_BROADCAST	6
606 #define	LINUX_SO_SNDBUF		7
607 #define	LINUX_SO_RCVBUF		8
608 #define	LINUX_SO_KEEPALIVE	9
609 #define	LINUX_SO_OOBINLINE	10
610 #define	LINUX_SO_NO_CHECK	11
611 #define	LINUX_SO_PRIORITY	12
612 #define	LINUX_SO_LINGER		13
613 
614 #define	LINUX_IP_TOS		1
615 #define	LINUX_IP_TTL		2
616 #define	LINUX_IP_HDRINCL	3
617 #define	LINUX_IP_OPTIONS	4
618 
619 #define	LINUX_IP_MULTICAST_IF		32
620 #define	LINUX_IP_MULTICAST_TTL		33
621 #define	LINUX_IP_MULTICAST_LOOP		34
622 #define	LINUX_IP_ADD_MEMBERSHIP		35
623 #define	LINUX_IP_DROP_MEMBERSHIP	36
624 
625 struct l_sockaddr {
626 	l_ushort	sa_family;
627 	char		sa_data[14];
628 };
629 
630 struct l_ifmap {
631 	l_ulong		mem_start;
632 	l_ulong		mem_end;
633 	l_ushort	base_addr;
634 	u_char		irq;
635 	u_char		dma;
636 	u_char		port;
637 };
638 
639 #define	LINUX_IFHWADDRLEN	6
640 #define	LINUX_IFNAMSIZ		16
641 
642 struct l_ifreq {
643 	union {
644 		char	ifrn_name[LINUX_IFNAMSIZ];
645 	} ifr_ifrn;
646 
647 	union {
648 		struct l_sockaddr	ifru_addr;
649 		struct l_sockaddr	ifru_dstaddr;
650 		struct l_sockaddr	ifru_broadaddr;
651 		struct l_sockaddr	ifru_netmask;
652 		struct l_sockaddr	ifru_hwaddr;
653 		l_short		ifru_flags[1];
654 		l_int		ifru_metric;
655 		l_int		ifru_mtu;
656 		struct l_ifmap	ifru_map;
657 		char		ifru_slave[LINUX_IFNAMSIZ];
658 		l_caddr_t	ifru_data;
659 	} ifr_ifru;
660 };
661 
662 #define	ifr_name	ifr_ifrn.ifrn_name	/* interface name */
663 #define	ifr_hwaddr	ifr_ifru.ifru_hwaddr	/* MAC address */
664 
665 /*
666  * poll()
667  */
668 #define	LINUX_POLLIN		0x0001
669 #define	LINUX_POLLPRI		0x0002
670 #define	LINUX_POLLOUT		0x0004
671 #define	LINUX_POLLERR		0x0008
672 #define	LINUX_POLLHUP		0x0010
673 #define	LINUX_POLLNVAL		0x0020
674 #define	LINUX_POLLRDNORM	0x0040
675 #define	LINUX_POLLRDBAND	0x0080
676 #define	LINUX_POLLWRNORM	0x0100
677 #define	LINUX_POLLWRBAND	0x0200
678 #define	LINUX_POLLMSG		0x0400
679 
680 struct l_pollfd {
681 	l_int		fd;
682 	l_short		events;
683 	l_short		revents;
684 };
685 
686 #endif /* !_I386_LINUX_LINUX_H_ */
687