summaryrefslogtreecommitdiffstats
path: root/include/linux/compat.h
blob: e94184834b711b8765f82ddd661975ef28233878 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
#ifndef _LINUX_COMPAT_H
#define _LINUX_COMPAT_H
/*
 * These are the type definitions for the architecture specific
 * syscall compatibility layer.
 */

#ifdef CONFIG_COMPAT

#include <linux/stat.h>
#include <linux/param.h>	/* for HZ */
#include <linux/sem.h>
#include <linux/socket.h>
#include <linux/if.h>
#include <linux/fs.h>

#include <asm/compat.h>
#include <asm/siginfo.h>
#include <asm/signal.h>

#define compat_jiffies_to_clock_t(x)	\
		(((unsigned long)(x) * COMPAT_USER_HZ) / HZ)

typedef __compat_uid32_t	compat_uid_t;
typedef __compat_gid32_t	compat_gid_t;

struct compat_sel_arg_struct;
struct rusage;

struct compat_itimerspec { 
	struct compat_timespec it_interval;
	struct compat_timespec it_value;
};

struct compat_utimbuf {
	compat_time_t		actime;
	compat_time_t		modtime;
};

struct compat_itimerval {
	struct compat_timeval	it_interval;
	struct compat_timeval	it_value;
};

struct compat_tms {
	compat_clock_t		tms_utime;
	compat_clock_t		tms_stime;
	compat_clock_t		tms_cutime;
	compat_clock_t		tms_cstime;
};

struct compat_timex {
	compat_uint_t modes;
	compat_long_t offset;
	compat_long_t freq;
	compat_long_t maxerror;
	compat_long_t esterror;
	compat_int_t status;
	compat_long_t constant;
	compat_long_t precision;
	compat_long_t tolerance;
	struct compat_timeval time;
	compat_long_t tick;
	compat_long_t ppsfreq;
	compat_long_t jitter;
	compat_int_t shift;
	compat_long_t stabil;
	compat_long_t jitcnt;
	compat_long_t calcnt;
	compat_long_t errcnt;
	compat_long_t stbcnt;
	compat_int_t tai;

	compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;
	compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32;
	compat_int_t :32; compat_int_t :32; compat_int_t :32;
};

#define _COMPAT_NSIG_WORDS	(_COMPAT_NSIG / _COMPAT_NSIG_BPW)

typedef struct {
	compat_sigset_word	sig[_COMPAT_NSIG_WORDS];
} compat_sigset_t;

extern int get_compat_timespec(struct timespec *, const struct compat_timespec __user *);
extern int put_compat_timespec(const struct timespec *, struct compat_timespec __user *);

struct compat_iovec {
	compat_uptr_t	iov_base;
	compat_size_t	iov_len;
};

struct compat_rlimit {
	compat_ulong_t	rlim_cur;
	compat_ulong_t	rlim_max;
};

struct compat_rusage {
	struct compat_timeval ru_utime;
	struct compat_timeval ru_stime;
	compat_long_t	ru_maxrss;
	compat_long_t	ru_ixrss;
	compat_long_t	ru_idrss;
	compat_long_t	ru_isrss;
	compat_long_t	ru_minflt;
	compat_long_t	ru_majflt;
	compat_long_t	ru_nswap;
	compat_long_t	ru_inblock;
	compat_long_t	ru_oublock;
	compat_long_t	ru_msgsnd;
	compat_long_t	ru_msgrcv;
	compat_long_t	ru_nsignals;
	compat_long_t	ru_nvcsw;
	compat_long_t	ru_nivcsw;
};

extern int put_compat_rusage(const struct rusage *, struct compat_rusage __user *);

struct compat_siginfo;

extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
		struct compat_siginfo __user *, int,
		struct compat_rusage __user *);

struct compat_dirent {
	u32		d_ino;
	compat_off_t	d_off;
	u16		d_reclen;
	char		d_name[256];
};

struct compat_ustat {
	compat_daddr_t		f_tfree;
	compat_ino_t		f_tinode;
	char			f_fname[6];
	char			f_fpack[6];
};

typedef union compat_sigval {
	compat_int_t	sival_int;
	compat_uptr_t	sival_ptr;
} compat_sigval_t;

#define COMPAT_SIGEV_PAD_SIZE	((SIGEV_MAX_SIZE/sizeof(int)) - 3)

typedef struct compat_sigevent {
	compat_sigval_t sigev_value;
	compat_int_t sigev_signo;
	compat_int_t sigev_notify;
	union {
		compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
		compat_int_t _tid;

		struct {
			compat_uptr_t _function;
			compat_uptr_t _attribute;
		} _sigev_thread;
	} _sigev_un;
} compat_sigevent_t;

struct compat_ifmap {
	compat_ulong_t mem_start;
	compat_ulong_t mem_end;
	unsigned short base_addr;
	unsigned char irq;
	unsigned char dma;
	unsigned char port;
};

struct compat_if_settings
{
	unsigned int type;	/* Type of physical device or protocol */
	unsigned int size;	/* Size of the data allocated by the caller */
	compat_uptr_t ifs_ifsu;	/* union of pointers */
};

struct compat_ifreq {
	union {
		char	ifrn_name[IFNAMSIZ];    /* if name, e.g. "en0" */
	} ifr_ifrn;
	union {
		struct	sockaddr ifru_addr;
		struct	sockaddr ifru_dstaddr;
		struct	sockaddr ifru_broadaddr;
		struct	sockaddr ifru_netmask;
		struct	sockaddr ifru_hwaddr;
		short	ifru_flags;
		compat_int_t	ifru_ivalue;
		compat_int_t	ifru_mtu;
		struct	compat_ifmap ifru_map;
		char	ifru_slave[IFNAMSIZ];   /* Just fits the size */
		char	ifru_newname[IFNAMSIZ];
		compat_caddr_t	ifru_data;
		struct	compat_if_settings ifru_settings;
	} ifr_ifru;
};

struct compat_ifconf {
        compat_int_t	ifc_len;                        /* size of buffer       */
        compat_caddr_t  ifcbuf;
};

struct compat_robust_list {
	compat_uptr_t			next;
};

struct compat_robust_list_head {
	struct compat_robust_list	list;
	compat_long_t			futex_offset;
	compat_uptr_t			list_op_pending;
};

struct compat_statfs;
struct compat_statfs64;
struct compat_old_linux_dirent;
struct compat_linux_dirent;
struct linux_dirent64;
struct compat_msghdr;
struct compat_mmsghdr;
struct compat_sysinfo;
struct compat_sysctl_args;
struct compat_kexec_segment;
struct compat_mq_attr;

extern void compat_exit_robust_list(struct task_struct *curr);

asmlinkage long
compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
			   compat_size_t len);
asmlinkage long
compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
			   compat_size_t __user *len_ptr);

long compat_sys_semctl(int first, int second, int third, void __user *uptr);
long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);
long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
		int version, void __user *uptr);
long compat_sys_msgctl(int first, int second, void __user *uptr);
long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,
		void __user *uptr);
long compat_sys_shmctl(int first, int second, void __user *uptr);
long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
		unsigned nsems, const struct compat_timespec __user *timeout);
asmlinkage long compat_sys_keyctl(u32 option,
			      u32 arg2, u32 arg3, u32 arg4, u32 arg5);
asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);

asmlinkage ssize_t compat_sys_readv(unsigned long fd,
		const struct compat_iovec __user *vec, unsigned long vlen);
asmlinkage ssize_t compat_sys_writev(unsigned long fd,
		const struct compat_iovec __user *vec, unsigned long vlen);
asmlinkage ssize_t compat_sys_preadv(unsigned long fd,
		const struct compat_iovec __user *vec,
		unsigned long vlen, u32 pos_low, u32 pos_high);
asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,
		const struct compat_iovec __user *vec,
		unsigned long vlen, u32 pos_low, u32 pos_high);

int compat_do_execve(char * filename, compat_uptr_t __user *argv,
	        compat_uptr_t __user *envp, struct pt_regs * regs);

asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
		compat_ulong_t __user *outp, compat_ulong_t __user *exp,
		struct compat_timeval __user *tvp);

asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg);

asmlinkage long compat_sys_wait4(compat_pid_t pid,
				 compat_uint_t __user *stat_addr, int options,
				 struct compat_rusage __user *ru);

#define BITS_PER_COMPAT_LONG    (8*sizeof(compat_long_t))

#define BITS_TO_COMPAT_LONGS(bits) \
	(((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)

long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
		       unsigned long bitmap_size);
long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
		       unsigned long bitmap_size);
int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from);
int get_compat_sigevent(struct sigevent *event,
		const struct compat_sigevent __user *u_event);
long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,
				  struct compat_siginfo __user *uinfo);

static inline int compat_timeval_compare(struct compat_timeval *lhs,
					struct compat_timeval *rhs)
{
	if (lhs->tv_sec < rhs->tv_sec)
		return -1;
	if (lhs->tv_sec > rhs->tv_sec)
		return 1;
	return lhs->tv_usec - rhs->tv_usec;
}

static inline int compat_timespec_compare(struct compat_timespec *lhs,
					struct compat_timespec *rhs)
{
	if (lhs->tv_sec < rhs->tv_sec)
		return -1;
	if (lhs->tv_sec > rhs->tv_sec)
		return 1;
	return lhs->tv_nsec - rhs->tv_nsec;
}

extern int get_compat_itimerspec(struct itimerspec *dst,
				 const struct compat_itimerspec __user *src);
extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,
				 const struct itimerspec *src);

asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
		struct timezone __user *tz);
asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
		struct timezone __user *tz);

asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);

extern int compat_printk(const char *fmt, ...);
extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);

asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
		compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
		const compat_ulong_t __user *new_nodes);

extern int compat_ptrace_request(struct task_struct *child,
				 compat_long_t request,
				 compat_ulong_t addr, compat_ulong_t data);

extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
			       compat_ulong_t addr, compat_ulong_t data);
asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
				  compat_long_t addr, compat_long_t data);

/*
 * epoll (fs/eventpoll.c) compat bits follow ...
 */
struct epoll_event;
#define compat_epoll_event	epoll_event
asmlinkage long compat_sys_epoll_pwait(int epfd,
			struct compat_epoll_event __user *events,
			int maxevents, int timeout,
			const compat_sigset_t __user *sigmask,
			compat_size_t sigsetsize);

asmlinkage long compat_sys_utime(const char __user *filename,
				 struct compat_utimbuf __user *t);
asmlinkage long compat_sys_utimensat(unsigned int dfd, const char __user *filename,
				struct compat_timespec __user *t, int flags);

asmlinkage long compat_sys_time(compat_time_t __user *tloc);
asmlinkage long compat_sys_stime(compat_time_t __user *tptr);
asmlinkage long compat_sys_signalfd(int ufd,
				const compat_sigset_t __user *sigmask,
                                compat_size_t sigsetsize);
asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
				   const struct compat_itimerspec __user *utmr,
				   struct compat_itimerspec __user *otmr);
asmlinkage long compat_sys_timerfd_gettime(int ufd,
				   struct compat_itimerspec __user *otmr);

asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_page,
				      __u32 __user *pages,
				      const int __user *nodes,
				      int __user *status,
				      int flags);
asmlinkage long compat_sys_futimesat(unsigned int dfd, const char __user *filename,
				     struct compat_timeval __user *t);
asmlinkage long compat_sys_utimes(const char __user *filename,
				  struct compat_timeval __user *t);
asmlinkage long compat_sys_newstat(const char __user * filename,
				   struct compat_stat __user *statbuf);
asmlinkage long compat_sys_newlstat(const char __user * filename,
				    struct compat_stat __user *statbuf);
asmlinkage long compat_sys_newfstatat(unsigned int dfd, const char __user * filename,
				      struct compat_stat __user *statbuf,
				      int flag);
asmlinkage long compat_sys_newfstat(unsigned int fd,
				    struct compat_stat __user * statbuf);
asmlinkage long compat_sys_statfs(const char __user *pathname,
				  struct compat_statfs __user *buf);
asmlinkage long compat_sys_fstatfs(unsigned int fd,
				   struct compat_statfs __user *buf);
asmlinkage long compat_sys_statfs64(const char __user *pathname,
				    compat_size_t sz,
				    struct compat_statfs64 __user *buf);
asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz,
				     struct compat_statfs64 __user *buf);
asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd,
				   unsigned long arg);
asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd,
				 unsigned long arg);
asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p);
asmlinkage long compat_sys_io_getevents(aio_context_t ctx_id,
					unsigned long min_nr,
					unsigned long nr,
					struct io_event __user *events,
					struct compat_timespec __user *timeout);
asmlinkage long compat_sys_io_submit(aio_context_t ctx_id, int nr,
				     u32 __user *iocb);
asmlinkage long compat_sys_mount(const char __user * dev_name,
				 const char __user * dir_name,
				 const char __user * type, unsigned long flags,
				 const void __user * data);
asmlinkage long compat_sys_old_readdir(unsigned int fd,
				       struct compat_old_linux_dirent __user *,
				       unsigned int count);
asmlinkage long compat_sys_getdents(unsigned int fd,
				    struct compat_linux_dirent __user *dirent,
				    unsigned int count);
asmlinkage long compat_sys_getdents64(unsigned int fd,
				      struct linux_dirent64 __user * dirent,
				      unsigned int count);
asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *,
				    unsigned int nr_segs, unsigned int flags);
asmlinkage long compat_sys_open(const char __user *filename, int flags,
				int mode);
asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename,
				  int flags, int mode);
asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,
					     struct file_handle __user *handle,
					     int flags);
asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp,
				    compat_ulong_t __user *outp,
				    compat_ulong_t __user *exp,
				    struct compat_timespec __user *tsp,
				    void __user *sig);
asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,
				 unsigned int nfds,
				 struct compat_timespec __user *tsp,
				 const compat_sigset_t __user *sigmask,
				 compat_size_t sigsetsize);
#if (defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE)) && !defined(CONFIG_NFSD_DEPRECATED)
union compat_nfsctl_res;
struct compat_nfsctl_arg;
asmlinkage long compat_sys_nfsservctl(int cmd,
				      struct compat_nfsctl_arg __user *arg,
				      union compat_nfsctl_res __user *res);
#else
long asmlinkage compat_sys_nfsservctl(int cmd, void *notused, void *notused2);
#endif
asmlinkage long compat_sys_signalfd4(int ufd,
				     const compat_sigset_t __user *sigmask,
				     compat_size_t sigsetsize, int flags);
asmlinkage long compat_sys_get_mempolicy(int __user *policy,
					 compat_ulong_t __user *nmask,
					 compat_ulong_t maxnode,
					 compat_ulong_t addr,
					 compat_ulong_t flags);
asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,
					 compat_ulong_t maxnode);
asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,
				 compat_ulong_t mode,
				 compat_ulong_t __user *nmask,
				 compat_ulong_t maxnode, compat_ulong_t flags);

asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
				      char __user *optval, unsigned int optlen);
asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg,
				   unsigned flags);
asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg,
				   unsigned int flags);
asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len,
				unsigned flags);
asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len,
			    unsigned flags, struct sockaddr __user *addr,
			    int __user *addrlen);
asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
				    unsigned vlen, unsigned int flags,
				    struct compat_timespec __user *timeout);
asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
				     struct compat_timespec __user *rmtp);
asmlinkage long compat_sys_getitimer(int which,
				     struct compat_itimerval __user *it);
asmlinkage long compat_sys_setitimer(int which,
				     struct compat_itimerval __user *in,
				     struct compat_itimerval __user *out);
asmlinkage long compat_sys_times(struct compat_tms __user *tbuf);
asmlinkage long compat_sys_setrlimit(unsigned int resource,
				     struct compat_rlimit __user *rlim);
asmlinkage long compat_sys_getrlimit (unsigned int resource,
				      struct compat_rlimit __user *rlim);
asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru);
asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid,
				     unsigned int len,
				     compat_ulong_t __user *user_mask_ptr);
asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid,
				     unsigned int len,
				     compat_ulong_t __user *user_mask_ptr);
asmlinkage long compat_sys_timer_create(clockid_t which_clock,
			struct compat_sigevent __user *timer_event_spec,
			timer_t __user *created_timer_id);
asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags,
					 struct compat_itimerspec __user *new,
					 struct compat_itimerspec __user *old);
asmlinkage long compat_sys_timer_gettime(timer_t timer_id,
				 struct compat_itimerspec __user *setting);
asmlinkage long compat_sys_clock_settime(clockid_t which_clock,
					 struct compat_timespec __user *tp);
asmlinkage long compat_sys_clock_gettime(clockid_t which_clock,
					 struct compat_timespec __user *tp);
asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock,
					 struct compat_timex __user *tp);
asmlinkage long compat_sys_clock_getres(clockid_t which_clock,
					struct compat_timespec __user *tp);
asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
					   struct compat_timespec __user *rqtp,
					   struct compat_timespec __user *rmtp);
asmlinkage long compat_sys_rt_sigtimedwait (compat_sigset_t __user *uthese,
		struct compat_siginfo __user *uinfo,
		struct compat_timespec __user *uts, compat_size_t sigsetsize);
asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset,
					 compat_size_t sigsetsize);
asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info);
asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
				 unsigned long arg);
asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val,
		struct compat_timespec __user *utime, u32 __user *uaddr2,
		u32 val3);
asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
				      char __user *optval, int __user *optlen);
asmlinkage long compat_sys_kexec_load(unsigned long entry,
				      unsigned long nr_segments,
				      struct compat_kexec_segment __user *,
				      unsigned long flags);
asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes,
			const struct compat_mq_attr __user *u_mqstat,
			struct compat_mq_attr __user *u_omqstat);
asmlinkage long compat_sys_mq_notify(mqd_t mqdes,
			const struct compat_sigevent __user *u_notification);
asmlinkage long compat_sys_mq_open(const char __user *u_name,
			int oflag, compat_mode_t mode,
			struct compat_mq_attr __user *u_attr);
asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes,
			const char __user *u_msg_ptr,
			size_t msg_len, unsigned int msg_prio,
			const struct compat_timespec __user *u_abs_timeout);
asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes,
			char __user *u_msg_ptr,
			size_t msg_len, unsigned int __user *u_msg_prio,
			const struct compat_timespec __user *u_abs_timeout);
asmlinkage long compat_sys_socketcall(int call, u32 __user *args);
asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args);

extern ssize_t compat_rw_copy_check_uvector(int type,
		const struct compat_iovec __user *uvector, unsigned long nr_segs,
		unsigned long fast_segs, struct iovec *fast_pointer,
		struct iovec **ret_pointer);

extern void __user *compat_alloc_user_space(unsigned long len);

#endif /* CONFIG_COMPAT */
#endif /* _LINUX_COMPAT_H */