1#ifndef _LINUX_COMPAT_H
2#define _LINUX_COMPAT_H
3
4
5
6
7
8#include <linux/types.h>
9
10#ifdef CONFIG_COMPAT
11
12#include <linux/stat.h>
13#include <linux/param.h>
14#include <linux/sem.h>
15#include <linux/socket.h>
16#include <linux/if.h>
17#include <linux/fs.h>
18#include <linux/aio_abi.h>
19#include <linux/unistd.h>
20
21#include <asm/compat.h>
22#include <asm/siginfo.h>
23#include <asm/signal.h>
24
25#ifndef COMPAT_USE_64BIT_TIME
26#define COMPAT_USE_64BIT_TIME 0
27#endif
28
29#ifndef __SC_DELOUSE
30#define __SC_DELOUSE(t,v) ((t)(unsigned long)(v))
31#endif
32
33#define COMPAT_SYSCALL_DEFINE0(name) \
34 asmlinkage long compat_sys_##name(void)
35
36#define COMPAT_SYSCALL_DEFINE1(name, ...) \
37 COMPAT_SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
38#define COMPAT_SYSCALL_DEFINE2(name, ...) \
39 COMPAT_SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
40#define COMPAT_SYSCALL_DEFINE3(name, ...) \
41 COMPAT_SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
42#define COMPAT_SYSCALL_DEFINE4(name, ...) \
43 COMPAT_SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
44#define COMPAT_SYSCALL_DEFINE5(name, ...) \
45 COMPAT_SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
46#define COMPAT_SYSCALL_DEFINE6(name, ...) \
47 COMPAT_SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
48
49#define COMPAT_SYSCALL_DEFINEx(x, name, ...) \
50 asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))\
51 __attribute__((alias(__stringify(compat_SyS##name)))); \
52 static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
53 asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));\
54 asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))\
55 { \
56 return C_SYSC##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__)); \
57 } \
58 static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
59
60#ifndef compat_user_stack_pointer
61#define compat_user_stack_pointer() current_user_stack_pointer()
62#endif
63#ifndef compat_sigaltstack
64typedef struct compat_sigaltstack {
65 compat_uptr_t ss_sp;
66 int ss_flags;
67 compat_size_t ss_size;
68} compat_stack_t;
69#endif
70
71#define compat_jiffies_to_clock_t(x) \
72 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
73
74typedef __compat_uid32_t compat_uid_t;
75typedef __compat_gid32_t compat_gid_t;
76
77typedef compat_ulong_t compat_aio_context_t;
78
79struct compat_sel_arg_struct;
80struct rusage;
81
82struct compat_itimerspec {
83 struct compat_timespec it_interval;
84 struct compat_timespec it_value;
85};
86
87struct compat_utimbuf {
88 compat_time_t actime;
89 compat_time_t modtime;
90};
91
92struct compat_itimerval {
93 struct compat_timeval it_interval;
94 struct compat_timeval it_value;
95};
96
97struct itimerval;
98int get_compat_itimerval(struct itimerval *, const struct compat_itimerval __user *);
99int put_compat_itimerval(struct compat_itimerval __user *, const struct itimerval *);
100
101struct compat_tms {
102 compat_clock_t tms_utime;
103 compat_clock_t tms_stime;
104 compat_clock_t tms_cutime;
105 compat_clock_t tms_cstime;
106};
107
108struct compat_timex {
109 compat_uint_t modes;
110 compat_long_t offset;
111 compat_long_t freq;
112 compat_long_t maxerror;
113 compat_long_t esterror;
114 compat_int_t status;
115 compat_long_t constant;
116 compat_long_t precision;
117 compat_long_t tolerance;
118 struct compat_timeval time;
119 compat_long_t tick;
120 compat_long_t ppsfreq;
121 compat_long_t jitter;
122 compat_int_t shift;
123 compat_long_t stabil;
124 compat_long_t jitcnt;
125 compat_long_t calcnt;
126 compat_long_t errcnt;
127 compat_long_t stbcnt;
128 compat_int_t tai;
129
130 compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
131 compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
132 compat_int_t:32; compat_int_t:32; compat_int_t:32;
133};
134
135struct timex;
136int compat_get_timex(struct timex *, const struct compat_timex __user *);
137int compat_put_timex(struct compat_timex __user *, const struct timex *);
138
139#define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
140
141typedef struct {
142 compat_sigset_word sig[_COMPAT_NSIG_WORDS];
143} compat_sigset_t;
144
145struct compat_sigaction {
146#ifndef __ARCH_HAS_IRIX_SIGACTION
147 compat_uptr_t sa_handler;
148 compat_ulong_t sa_flags;
149#else
150 compat_uint_t sa_flags;
151 compat_uptr_t sa_handler;
152#endif
153#ifdef __ARCH_HAS_SA_RESTORER
154 compat_uptr_t sa_restorer;
155#endif
156 compat_sigset_t sa_mask __packed;
157};
158
159
160
161
162
163extern int compat_get_timespec(struct timespec *, const void __user *);
164extern int compat_put_timespec(const struct timespec *, void __user *);
165extern int compat_get_timeval(struct timeval *, const void __user *);
166extern int compat_put_timeval(const struct timeval *, void __user *);
167extern int compat_get_timespec64(struct timespec64 *, const void __user *);
168extern int compat_put_timespec64(const struct timespec64 *, void __user *);
169extern int get_compat_itimerspec64(struct itimerspec64 *its,
170 const struct compat_itimerspec __user *uits);
171extern int put_compat_itimerspec64(const struct itimerspec64 *its,
172 struct compat_itimerspec __user *uits);
173
174
175
176
177
178
179
180extern int compat_convert_timespec(struct timespec __user **,
181 const void __user *);
182
183struct compat_iovec {
184 compat_uptr_t iov_base;
185 compat_size_t iov_len;
186};
187
188struct compat_rlimit {
189 compat_ulong_t rlim_cur;
190 compat_ulong_t rlim_max;
191};
192
193struct compat_rusage {
194 struct compat_timeval ru_utime;
195 struct compat_timeval ru_stime;
196 compat_long_t ru_maxrss;
197 compat_long_t ru_ixrss;
198 compat_long_t ru_idrss;
199 compat_long_t ru_isrss;
200 compat_long_t ru_minflt;
201 compat_long_t ru_majflt;
202 compat_long_t ru_nswap;
203 compat_long_t ru_inblock;
204 compat_long_t ru_oublock;
205 compat_long_t ru_msgsnd;
206 compat_long_t ru_msgrcv;
207 compat_long_t ru_nsignals;
208 compat_long_t ru_nvcsw;
209 compat_long_t ru_nivcsw;
210};
211
212extern int put_compat_rusage(const struct rusage *,
213 struct compat_rusage __user *);
214
215struct compat_siginfo;
216
217extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
218 struct compat_siginfo __user *, int,
219 struct compat_rusage __user *);
220
221struct compat_dirent {
222 u32 d_ino;
223 compat_off_t d_off;
224 u16 d_reclen;
225 char d_name[256];
226};
227
228struct compat_ustat {
229 compat_daddr_t f_tfree;
230 compat_ino_t f_tinode;
231 char f_fname[6];
232 char f_fpack[6];
233};
234
235#define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
236
237typedef struct compat_sigevent {
238 compat_sigval_t sigev_value;
239 compat_int_t sigev_signo;
240 compat_int_t sigev_notify;
241 union {
242 compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
243 compat_int_t _tid;
244
245 struct {
246 compat_uptr_t _function;
247 compat_uptr_t _attribute;
248 } _sigev_thread;
249 } _sigev_un;
250} compat_sigevent_t;
251
252struct compat_ifmap {
253 compat_ulong_t mem_start;
254 compat_ulong_t mem_end;
255 unsigned short base_addr;
256 unsigned char irq;
257 unsigned char dma;
258 unsigned char port;
259};
260
261struct compat_if_settings {
262 unsigned int type;
263 unsigned int size;
264 compat_uptr_t ifs_ifsu;
265};
266
267struct compat_ifreq {
268 union {
269 char ifrn_name[IFNAMSIZ];
270 } ifr_ifrn;
271 union {
272 struct sockaddr ifru_addr;
273 struct sockaddr ifru_dstaddr;
274 struct sockaddr ifru_broadaddr;
275 struct sockaddr ifru_netmask;
276 struct sockaddr ifru_hwaddr;
277 short ifru_flags;
278 compat_int_t ifru_ivalue;
279 compat_int_t ifru_mtu;
280 struct compat_ifmap ifru_map;
281 char ifru_slave[IFNAMSIZ];
282 char ifru_newname[IFNAMSIZ];
283 compat_caddr_t ifru_data;
284 struct compat_if_settings ifru_settings;
285 } ifr_ifru;
286};
287
288struct compat_ifconf {
289 compat_int_t ifc_len;
290 compat_caddr_t ifcbuf;
291};
292
293struct compat_robust_list {
294 compat_uptr_t next;
295};
296
297struct compat_robust_list_head {
298 struct compat_robust_list list;
299 compat_long_t futex_offset;
300 compat_uptr_t list_op_pending;
301};
302
303#ifdef CONFIG_COMPAT_OLD_SIGACTION
304struct compat_old_sigaction {
305 compat_uptr_t sa_handler;
306 compat_old_sigset_t sa_mask;
307 compat_ulong_t sa_flags;
308 compat_uptr_t sa_restorer;
309};
310#endif
311
312struct compat_keyctl_kdf_params {
313 compat_uptr_t hashname;
314 compat_uptr_t otherinfo;
315 __u32 otherinfolen;
316 __u32 __spare[8];
317};
318
319struct compat_statfs;
320struct compat_statfs64;
321struct compat_old_linux_dirent;
322struct compat_linux_dirent;
323struct linux_dirent64;
324struct compat_msghdr;
325struct compat_mmsghdr;
326struct compat_sysinfo;
327struct compat_sysctl_args;
328struct compat_kexec_segment;
329struct compat_mq_attr;
330struct compat_msgbuf;
331
332extern void compat_exit_robust_list(struct task_struct *curr);
333
334asmlinkage long
335compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
336 compat_size_t len);
337asmlinkage long
338compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
339 compat_size_t __user *len_ptr);
340
341asmlinkage long compat_sys_ipc(u32, int, int, u32, compat_uptr_t, u32);
342asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
343asmlinkage long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
344asmlinkage long compat_sys_msgsnd(int msqid, compat_uptr_t msgp,
345 compat_ssize_t msgsz, int msgflg);
346asmlinkage long compat_sys_msgrcv(int msqid, compat_uptr_t msgp,
347 compat_ssize_t msgsz, compat_long_t msgtyp, int msgflg);
348long compat_sys_msgctl(int first, int second, void __user *uptr);
349long compat_sys_shmctl(int first, int second, void __user *uptr);
350long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
351 unsigned nsems, const struct compat_timespec __user *timeout);
352asmlinkage long compat_sys_keyctl(u32 option,
353 u32 arg2, u32 arg3, u32 arg4, u32 arg5);
354asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
355
356asmlinkage ssize_t compat_sys_readv(compat_ulong_t fd,
357 const struct compat_iovec __user *vec, compat_ulong_t vlen);
358asmlinkage ssize_t compat_sys_writev(compat_ulong_t fd,
359 const struct compat_iovec __user *vec, compat_ulong_t vlen);
360asmlinkage ssize_t compat_sys_preadv(compat_ulong_t fd,
361 const struct compat_iovec __user *vec,
362 compat_ulong_t vlen, u32 pos_low, u32 pos_high);
363asmlinkage ssize_t compat_sys_pwritev(compat_ulong_t fd,
364 const struct compat_iovec __user *vec,
365 compat_ulong_t vlen, u32 pos_low, u32 pos_high);
366asmlinkage ssize_t compat_sys_preadv2(compat_ulong_t fd,
367 const struct compat_iovec __user *vec,
368 compat_ulong_t vlen, u32 pos_low, u32 pos_high, int flags);
369asmlinkage ssize_t compat_sys_pwritev2(compat_ulong_t fd,
370 const struct compat_iovec __user *vec,
371 compat_ulong_t vlen, u32 pos_low, u32 pos_high, int flags);
372
373#ifdef __ARCH_WANT_COMPAT_SYS_PREADV64
374asmlinkage long compat_sys_preadv64(unsigned long fd,
375 const struct compat_iovec __user *vec,
376 unsigned long vlen, loff_t pos);
377#endif
378
379#ifdef __ARCH_WANT_COMPAT_SYS_PWRITEV64
380asmlinkage long compat_sys_pwritev64(unsigned long fd,
381 const struct compat_iovec __user *vec,
382 unsigned long vlen, loff_t pos);
383#endif
384
385asmlinkage long compat_sys_lseek(unsigned int, compat_off_t, unsigned int);
386
387asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv,
388 const compat_uptr_t __user *envp);
389asmlinkage long compat_sys_execveat(int dfd, const char __user *filename,
390 const compat_uptr_t __user *argv,
391 const compat_uptr_t __user *envp, int flags);
392
393asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
394 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
395 struct compat_timeval __user *tvp);
396
397asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg);
398
399asmlinkage long compat_sys_wait4(compat_pid_t pid,
400 compat_uint_t __user *stat_addr, int options,
401 struct compat_rusage __user *ru);
402
403#define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t))
404
405#define BITS_TO_COMPAT_LONGS(bits) DIV_ROUND_UP(bits, BITS_PER_COMPAT_LONG)
406
407long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
408 unsigned long bitmap_size);
409long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
410 unsigned long bitmap_size);
411int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
412int copy_siginfo_to_user32(struct compat_siginfo __user *to, const siginfo_t *from);
413int get_compat_sigevent(struct sigevent *event,
414 const struct compat_sigevent __user *u_event);
415long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,
416 struct compat_siginfo __user *uinfo);
417#ifdef CONFIG_COMPAT_OLD_SIGACTION
418asmlinkage long compat_sys_sigaction(int sig,
419 const struct compat_old_sigaction __user *act,
420 struct compat_old_sigaction __user *oact);
421#endif
422
423static inline int compat_timeval_compare(struct compat_timeval *lhs,
424 struct compat_timeval *rhs)
425{
426 if (lhs->tv_sec < rhs->tv_sec)
427 return -1;
428 if (lhs->tv_sec > rhs->tv_sec)
429 return 1;
430 return lhs->tv_usec - rhs->tv_usec;
431}
432
433static inline int compat_timespec_compare(struct compat_timespec *lhs,
434 struct compat_timespec *rhs)
435{
436 if (lhs->tv_sec < rhs->tv_sec)
437 return -1;
438 if (lhs->tv_sec > rhs->tv_sec)
439 return 1;
440 return lhs->tv_nsec - rhs->tv_nsec;
441}
442
443extern int get_compat_itimerspec(struct itimerspec *dst,
444 const struct compat_itimerspec __user *src);
445extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,
446 const struct itimerspec *src);
447
448asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
449 struct timezone __user *tz);
450asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
451 struct timezone __user *tz);
452
453asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
454
455extern void sigset_from_compat(sigset_t *set, const compat_sigset_t *compat);
456extern void sigset_to_compat(compat_sigset_t *compat, const sigset_t *set);
457
458asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
459 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
460 const compat_ulong_t __user *new_nodes);
461
462extern int compat_ptrace_request(struct task_struct *child,
463 compat_long_t request,
464 compat_ulong_t addr, compat_ulong_t data);
465
466extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
467 compat_ulong_t addr, compat_ulong_t data);
468asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
469 compat_long_t addr, compat_long_t data);
470
471asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, compat_size_t);
472
473
474
475struct epoll_event;
476asmlinkage long compat_sys_epoll_pwait(int epfd,
477 struct epoll_event __user *events,
478 int maxevents, int timeout,
479 const compat_sigset_t __user *sigmask,
480 compat_size_t sigsetsize);
481
482asmlinkage long compat_sys_utime(const char __user *filename,
483 struct compat_utimbuf __user *t);
484asmlinkage long compat_sys_utimensat(unsigned int dfd,
485 const char __user *filename,
486 struct compat_timespec __user *t,
487 int flags);
488
489asmlinkage long compat_sys_time(compat_time_t __user *tloc);
490asmlinkage long compat_sys_stime(compat_time_t __user *tptr);
491asmlinkage long compat_sys_signalfd(int ufd,
492 const compat_sigset_t __user *sigmask,
493 compat_size_t sigsetsize);
494asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
495 const struct compat_itimerspec __user *utmr,
496 struct compat_itimerspec __user *otmr);
497asmlinkage long compat_sys_timerfd_gettime(int ufd,
498 struct compat_itimerspec __user *otmr);
499
500asmlinkage long compat_sys_move_pages(pid_t pid, compat_ulong_t nr_pages,
501 __u32 __user *pages,
502 const int __user *nodes,
503 int __user *status,
504 int flags);
505asmlinkage long compat_sys_futimesat(unsigned int dfd,
506 const char __user *filename,
507 struct compat_timeval __user *t);
508asmlinkage long compat_sys_utimes(const char __user *filename,
509 struct compat_timeval __user *t);
510asmlinkage long compat_sys_newstat(const char __user *filename,
511 struct compat_stat __user *statbuf);
512asmlinkage long compat_sys_newlstat(const char __user *filename,
513 struct compat_stat __user *statbuf);
514asmlinkage long compat_sys_newfstatat(unsigned int dfd,
515 const char __user *filename,
516 struct compat_stat __user *statbuf,
517 int flag);
518asmlinkage long compat_sys_newfstat(unsigned int fd,
519 struct compat_stat __user *statbuf);
520asmlinkage long compat_sys_statfs(const char __user *pathname,
521 struct compat_statfs __user *buf);
522asmlinkage long compat_sys_fstatfs(unsigned int fd,
523 struct compat_statfs __user *buf);
524asmlinkage long compat_sys_statfs64(const char __user *pathname,
525 compat_size_t sz,
526 struct compat_statfs64 __user *buf);
527asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz,
528 struct compat_statfs64 __user *buf);
529asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd,
530 compat_ulong_t arg);
531asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd,
532 compat_ulong_t arg);
533asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p);
534asmlinkage long compat_sys_io_getevents(compat_aio_context_t ctx_id,
535 compat_long_t min_nr,
536 compat_long_t nr,
537 struct io_event __user *events,
538 struct compat_timespec __user *timeout);
539asmlinkage long compat_sys_io_submit(compat_aio_context_t ctx_id, int nr,
540 u32 __user *iocb);
541asmlinkage long compat_sys_mount(const char __user *dev_name,
542 const char __user *dir_name,
543 const char __user *type, compat_ulong_t flags,
544 const void __user *data);
545asmlinkage long compat_sys_old_readdir(unsigned int fd,
546 struct compat_old_linux_dirent __user *,
547 unsigned int count);
548asmlinkage long compat_sys_getdents(unsigned int fd,
549 struct compat_linux_dirent __user *dirent,
550 unsigned int count);
551asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *,
552 unsigned int nr_segs, unsigned int flags);
553asmlinkage long compat_sys_open(const char __user *filename, int flags,
554 umode_t mode);
555asmlinkage long compat_sys_openat(int dfd, const char __user *filename,
556 int flags, umode_t mode);
557asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,
558 struct file_handle __user *handle,
559 int flags);
560asmlinkage long compat_sys_truncate(const char __user *, compat_off_t);
561asmlinkage long compat_sys_ftruncate(unsigned int, compat_ulong_t);
562asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp,
563 compat_ulong_t __user *outp,
564 compat_ulong_t __user *exp,
565 struct compat_timespec __user *tsp,
566 void __user *sig);
567asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,
568 unsigned int nfds,
569 struct compat_timespec __user *tsp,
570 const compat_sigset_t __user *sigmask,
571 compat_size_t sigsetsize);
572asmlinkage long compat_sys_signalfd4(int ufd,
573 const compat_sigset_t __user *sigmask,
574 compat_size_t sigsetsize, int flags);
575asmlinkage long compat_sys_get_mempolicy(int __user *policy,
576 compat_ulong_t __user *nmask,
577 compat_ulong_t maxnode,
578 compat_ulong_t addr,
579 compat_ulong_t flags);
580asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,
581 compat_ulong_t maxnode);
582asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,
583 compat_ulong_t mode,
584 compat_ulong_t __user *nmask,
585 compat_ulong_t maxnode, compat_ulong_t flags);
586
587asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
588 char __user *optval, unsigned int optlen);
589asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg,
590 unsigned flags);
591asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg,
592 unsigned vlen, unsigned int flags);
593asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg,
594 unsigned int flags);
595asmlinkage long compat_sys_recv(int fd, void __user *buf, compat_size_t len,
596 unsigned flags);
597asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, compat_size_t len,
598 unsigned flags, struct sockaddr __user *addr,
599 int __user *addrlen);
600asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
601 unsigned vlen, unsigned int flags,
602 struct compat_timespec __user *timeout);
603asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
604 struct compat_timespec __user *rmtp);
605asmlinkage long compat_sys_getitimer(int which,
606 struct compat_itimerval __user *it);
607asmlinkage long compat_sys_setitimer(int which,
608 struct compat_itimerval __user *in,
609 struct compat_itimerval __user *out);
610asmlinkage long compat_sys_times(struct compat_tms __user *tbuf);
611asmlinkage long compat_sys_setrlimit(unsigned int resource,
612 struct compat_rlimit __user *rlim);
613asmlinkage long compat_sys_getrlimit(unsigned int resource,
614 struct compat_rlimit __user *rlim);
615asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru);
616asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid,
617 unsigned int len,
618 compat_ulong_t __user *user_mask_ptr);
619asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid,
620 unsigned int len,
621 compat_ulong_t __user *user_mask_ptr);
622asmlinkage long compat_sys_timer_create(clockid_t which_clock,
623 struct compat_sigevent __user *timer_event_spec,
624 timer_t __user *created_timer_id);
625asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags,
626 struct compat_itimerspec __user *new,
627 struct compat_itimerspec __user *old);
628asmlinkage long compat_sys_timer_gettime(timer_t timer_id,
629 struct compat_itimerspec __user *setting);
630asmlinkage long compat_sys_clock_settime(clockid_t which_clock,
631 struct compat_timespec __user *tp);
632asmlinkage long compat_sys_clock_gettime(clockid_t which_clock,
633 struct compat_timespec __user *tp);
634asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock,
635 struct compat_timex __user *tp);
636asmlinkage long compat_sys_clock_getres(clockid_t which_clock,
637 struct compat_timespec __user *tp);
638asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
639 struct compat_timespec __user *rqtp,
640 struct compat_timespec __user *rmtp);
641asmlinkage long compat_sys_rt_sigtimedwait(compat_sigset_t __user *uthese,
642 struct compat_siginfo __user *uinfo,
643 struct compat_timespec __user *uts, compat_size_t sigsetsize);
644asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset,
645 compat_size_t sigsetsize);
646asmlinkage long compat_sys_rt_sigprocmask(int how, compat_sigset_t __user *set,
647 compat_sigset_t __user *oset,
648 compat_size_t sigsetsize);
649asmlinkage long compat_sys_rt_sigpending(compat_sigset_t __user *uset,
650 compat_size_t sigsetsize);
651#ifndef CONFIG_ODD_RT_SIGACTION
652asmlinkage long compat_sys_rt_sigaction(int,
653 const struct compat_sigaction __user *,
654 struct compat_sigaction __user *,
655 compat_size_t);
656#endif
657asmlinkage long compat_sys_rt_sigqueueinfo(compat_pid_t pid, int sig,
658 struct compat_siginfo __user *uinfo);
659asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info);
660asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
661 compat_ulong_t arg);
662asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val,
663 struct compat_timespec __user *utime, u32 __user *uaddr2,
664 u32 val3);
665asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
666 char __user *optval, int __user *optlen);
667asmlinkage long compat_sys_kexec_load(compat_ulong_t entry,
668 compat_ulong_t nr_segments,
669 struct compat_kexec_segment __user *,
670 compat_ulong_t flags);
671asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes,
672 const struct compat_mq_attr __user *u_mqstat,
673 struct compat_mq_attr __user *u_omqstat);
674asmlinkage long compat_sys_mq_notify(mqd_t mqdes,
675 const struct compat_sigevent __user *u_notification);
676asmlinkage long compat_sys_mq_open(const char __user *u_name,
677 int oflag, compat_mode_t mode,
678 struct compat_mq_attr __user *u_attr);
679asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes,
680 const char __user *u_msg_ptr,
681 compat_size_t msg_len, unsigned int msg_prio,
682 const struct compat_timespec __user *u_abs_timeout);
683asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes,
684 char __user *u_msg_ptr,
685 compat_size_t msg_len, unsigned int __user *u_msg_prio,
686 const struct compat_timespec __user *u_abs_timeout);
687asmlinkage long compat_sys_socketcall(int call, u32 __user *args);
688asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args);
689
690extern ssize_t compat_rw_copy_check_uvector(int type,
691 const struct compat_iovec __user *uvector,
692 unsigned long nr_segs,
693 unsigned long fast_segs, struct iovec *fast_pointer,
694 struct iovec **ret_pointer);
695
696extern void __user *compat_alloc_user_space(unsigned long len);
697
698asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid,
699 const struct compat_iovec __user *lvec,
700 compat_ulong_t liovcnt, const struct compat_iovec __user *rvec,
701 compat_ulong_t riovcnt, compat_ulong_t flags);
702asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid,
703 const struct compat_iovec __user *lvec,
704 compat_ulong_t liovcnt, const struct compat_iovec __user *rvec,
705 compat_ulong_t riovcnt, compat_ulong_t flags);
706
707asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
708 compat_off_t __user *offset, compat_size_t count);
709asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd,
710 compat_loff_t __user *offset, compat_size_t count);
711asmlinkage long compat_sys_sigaltstack(const compat_stack_t __user *uss_ptr,
712 compat_stack_t __user *uoss_ptr);
713
714#ifdef __ARCH_WANT_SYS_SIGPENDING
715asmlinkage long compat_sys_sigpending(compat_old_sigset_t __user *set);
716#endif
717
718#ifdef __ARCH_WANT_SYS_SIGPROCMASK
719asmlinkage long compat_sys_sigprocmask(int how, compat_old_sigset_t __user *nset,
720 compat_old_sigset_t __user *oset);
721#endif
722
723int compat_restore_altstack(const compat_stack_t __user *uss);
724int __compat_save_altstack(compat_stack_t __user *, unsigned long);
725#define compat_save_altstack_ex(uss, sp) do { \
726 compat_stack_t __user *__uss = uss; \
727 struct task_struct *t = current; \
728 put_user_ex(ptr_to_compat((void __user *)t->sas_ss_sp), &__uss->ss_sp); \
729 put_user_ex(t->sas_ss_flags, &__uss->ss_flags); \
730 put_user_ex(t->sas_ss_size, &__uss->ss_size); \
731 if (t->sas_ss_flags & SS_AUTODISARM) \
732 sas_ss_reset(t); \
733} while (0);
734
735asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid,
736 struct compat_timespec __user *interval);
737
738asmlinkage long compat_sys_fanotify_mark(int, unsigned int, __u32, __u32,
739 int, const char __user *);
740
741asmlinkage long compat_sys_arch_prctl(int option, unsigned long arg2);
742
743
744
745
746
747
748
749#ifndef in_compat_syscall
750static inline bool in_compat_syscall(void) { return is_compat_task(); }
751#endif
752
753
754
755
756
757
758
759static inline struct compat_timeval ns_to_compat_timeval(s64 nsec)
760{
761 struct timeval tv;
762 struct compat_timeval ctv;
763
764 tv = ns_to_timeval(nsec);
765 ctv.tv_sec = tv.tv_sec;
766 ctv.tv_usec = tv.tv_usec;
767
768 return ctv;
769}
770
771#else
772
773#define is_compat_task() (0)
774static inline bool in_compat_syscall(void) { return false; }
775
776#endif
777
778#endif
779
