1 #ifndef _LINUX_COMPAT_H
2 #define _LINUX_COMPAT_H
4 * These are the type definitions for the architecture specific
5 * syscall compatibility layer.
8 #include <linux/types.h>
12 #include <linux/stat.h>
13 #include <linux/param.h> /* for HZ */
14 #include <linux/sem.h>
15 #include <linux/socket.h>
18 #include <linux/aio_abi.h> /* for aio_context_t */
19 #include <linux/unistd.h>
21 #include <asm/compat.h>
22 #include <asm/siginfo.h>
23 #include <asm/signal.h>
25 #ifndef COMPAT_USE_64BIT_TIME
26 #define COMPAT_USE_64BIT_TIME 0
30 #define __SC_DELOUSE(t,v) ((__force t)(unsigned long)(v))
33 #define COMPAT_SYSCALL_DEFINE0(name) \
34 asmlinkage long compat_sys_##name(void)
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__)
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__))\
56 return C_SYSC##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__)); \
58 static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
60 #ifndef compat_user_stack_pointer
61 #define compat_user_stack_pointer() current_user_stack_pointer()
63 #ifndef compat_sigaltstack /* we'll need that for MIPS */
64 typedef struct compat_sigaltstack
{
67 compat_size_t ss_size
;
71 #define compat_jiffies_to_clock_t(x) \
72 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
74 typedef __compat_uid32_t compat_uid_t
;
75 typedef __compat_gid32_t compat_gid_t
;
77 typedef compat_ulong_t compat_aio_context_t
;
79 struct compat_sel_arg_struct
;
82 struct compat_itimerspec
{
83 struct compat_timespec it_interval
;
84 struct compat_timespec it_value
;
87 struct compat_utimbuf
{
89 compat_time_t modtime
;
92 struct compat_itimerval
{
93 struct compat_timeval it_interval
;
94 struct compat_timeval it_value
;
98 int get_compat_itimerval(struct itimerval
*, const struct compat_itimerval __user
*);
99 int put_compat_itimerval(struct compat_itimerval __user
*, const struct itimerval
*);
102 compat_clock_t tms_utime
;
103 compat_clock_t tms_stime
;
104 compat_clock_t tms_cutime
;
105 compat_clock_t tms_cstime
;
108 struct compat_timex
{
110 compat_long_t offset
;
112 compat_long_t maxerror
;
113 compat_long_t esterror
;
115 compat_long_t constant
;
116 compat_long_t precision
;
117 compat_long_t tolerance
;
118 struct compat_timeval time
;
120 compat_long_t ppsfreq
;
121 compat_long_t jitter
;
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
;
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;
136 int compat_get_timex(struct timex
*, const struct compat_timex __user
*);
137 int compat_put_timex(struct compat_timex __user
*, const struct timex
*);
139 #define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
142 compat_sigset_word sig
[_COMPAT_NSIG_WORDS
];
145 struct compat_sigaction
{
146 #ifndef __ARCH_HAS_IRIX_SIGACTION
147 compat_uptr_t sa_handler
;
148 compat_ulong_t sa_flags
;
150 compat_uint_t sa_flags
;
151 compat_uptr_t sa_handler
;
153 #ifdef __ARCH_HAS_SA_RESTORER
154 compat_uptr_t sa_restorer
;
156 compat_sigset_t sa_mask __packed
;
160 * These functions operate on 32- or 64-bit specs depending on
161 * COMPAT_USE_64BIT_TIME, hence the void user pointer arguments.
163 extern int compat_get_timespec(struct timespec
*, const void __user
*);
164 extern int compat_put_timespec(const struct timespec
*, void __user
*);
165 extern int compat_get_timeval(struct timeval
*, const void __user
*);
166 extern int compat_put_timeval(const struct timeval
*, void __user
*);
167 extern int compat_get_timespec64(struct timespec64
*, const void __user
*);
168 extern int compat_put_timespec64(const struct timespec64
*, void __user
*);
169 extern int get_compat_itimerspec64(struct itimerspec64
*its
,
170 const struct compat_itimerspec __user
*uits
);
171 extern int put_compat_itimerspec64(const struct itimerspec64
*its
,
172 struct compat_itimerspec __user
*uits
);
174 struct compat_iovec
{
175 compat_uptr_t iov_base
;
176 compat_size_t iov_len
;
179 struct compat_rlimit
{
180 compat_ulong_t rlim_cur
;
181 compat_ulong_t rlim_max
;
184 struct compat_rusage
{
185 struct compat_timeval ru_utime
;
186 struct compat_timeval ru_stime
;
187 compat_long_t ru_maxrss
;
188 compat_long_t ru_ixrss
;
189 compat_long_t ru_idrss
;
190 compat_long_t ru_isrss
;
191 compat_long_t ru_minflt
;
192 compat_long_t ru_majflt
;
193 compat_long_t ru_nswap
;
194 compat_long_t ru_inblock
;
195 compat_long_t ru_oublock
;
196 compat_long_t ru_msgsnd
;
197 compat_long_t ru_msgrcv
;
198 compat_long_t ru_nsignals
;
199 compat_long_t ru_nvcsw
;
200 compat_long_t ru_nivcsw
;
203 extern int put_compat_rusage(const struct rusage
*,
204 struct compat_rusage __user
*);
206 struct compat_siginfo
;
208 extern asmlinkage
long compat_sys_waitid(int, compat_pid_t
,
209 struct compat_siginfo __user
*, int,
210 struct compat_rusage __user
*);
212 struct compat_dirent
{
219 struct compat_ustat
{
220 compat_daddr_t f_tfree
;
221 compat_ino_t f_tinode
;
226 #define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
228 typedef struct compat_sigevent
{
229 compat_sigval_t sigev_value
;
230 compat_int_t sigev_signo
;
231 compat_int_t sigev_notify
;
233 compat_int_t _pad
[COMPAT_SIGEV_PAD_SIZE
];
237 compat_uptr_t _function
;
238 compat_uptr_t _attribute
;
243 struct compat_ifmap
{
244 compat_ulong_t mem_start
;
245 compat_ulong_t mem_end
;
246 unsigned short base_addr
;
252 struct compat_if_settings
{
253 unsigned int type
; /* Type of physical device or protocol */
254 unsigned int size
; /* Size of the data allocated by the caller */
255 compat_uptr_t ifs_ifsu
; /* union of pointers */
258 struct compat_ifreq
{
260 char ifrn_name
[IFNAMSIZ
]; /* if name, e.g. "en0" */
263 struct sockaddr ifru_addr
;
264 struct sockaddr ifru_dstaddr
;
265 struct sockaddr ifru_broadaddr
;
266 struct sockaddr ifru_netmask
;
267 struct sockaddr ifru_hwaddr
;
269 compat_int_t ifru_ivalue
;
270 compat_int_t ifru_mtu
;
271 struct compat_ifmap ifru_map
;
272 char ifru_slave
[IFNAMSIZ
]; /* Just fits the size */
273 char ifru_newname
[IFNAMSIZ
];
274 compat_caddr_t ifru_data
;
275 struct compat_if_settings ifru_settings
;
279 struct compat_ifconf
{
280 compat_int_t ifc_len
; /* size of buffer */
281 compat_caddr_t ifcbuf
;
284 struct compat_robust_list
{
288 struct compat_robust_list_head
{
289 struct compat_robust_list list
;
290 compat_long_t futex_offset
;
291 compat_uptr_t list_op_pending
;
294 #ifdef CONFIG_COMPAT_OLD_SIGACTION
295 struct compat_old_sigaction
{
296 compat_uptr_t sa_handler
;
297 compat_old_sigset_t sa_mask
;
298 compat_ulong_t sa_flags
;
299 compat_uptr_t sa_restorer
;
303 struct compat_keyctl_kdf_params
{
304 compat_uptr_t hashname
;
305 compat_uptr_t otherinfo
;
310 struct compat_statfs
;
311 struct compat_statfs64
;
312 struct compat_old_linux_dirent
;
313 struct compat_linux_dirent
;
314 struct linux_dirent64
;
315 struct compat_msghdr
;
316 struct compat_mmsghdr
;
317 struct compat_sysinfo
;
318 struct compat_sysctl_args
;
319 struct compat_kexec_segment
;
320 struct compat_mq_attr
;
321 struct compat_msgbuf
;
323 extern void compat_exit_robust_list(struct task_struct
*curr
);
326 compat_sys_set_robust_list(struct compat_robust_list_head __user
*head
,
329 compat_sys_get_robust_list(int pid
, compat_uptr_t __user
*head_ptr
,
330 compat_size_t __user
*len_ptr
);
332 asmlinkage
long compat_sys_ipc(u32
, int, int, u32
, compat_uptr_t
, u32
);
333 asmlinkage
long compat_sys_shmat(int shmid
, compat_uptr_t shmaddr
, int shmflg
);
334 asmlinkage
long compat_sys_semctl(int semid
, int semnum
, int cmd
, int arg
);
335 asmlinkage
long compat_sys_msgsnd(int msqid
, compat_uptr_t msgp
,
336 compat_ssize_t msgsz
, int msgflg
);
337 asmlinkage
long compat_sys_msgrcv(int msqid
, compat_uptr_t msgp
,
338 compat_ssize_t msgsz
, compat_long_t msgtyp
, int msgflg
);
339 long compat_sys_msgctl(int first
, int second
, void __user
*uptr
);
340 long compat_sys_shmctl(int first
, int second
, void __user
*uptr
);
341 long compat_sys_semtimedop(int semid
, struct sembuf __user
*tsems
,
342 unsigned nsems
, const struct compat_timespec __user
*timeout
);
343 asmlinkage
long compat_sys_keyctl(u32 option
,
344 u32 arg2
, u32 arg3
, u32 arg4
, u32 arg5
);
345 asmlinkage
long compat_sys_ustat(unsigned dev
, struct compat_ustat __user
*u32
);
347 asmlinkage ssize_t
compat_sys_readv(compat_ulong_t fd
,
348 const struct compat_iovec __user
*vec
, compat_ulong_t vlen
);
349 asmlinkage ssize_t
compat_sys_writev(compat_ulong_t fd
,
350 const struct compat_iovec __user
*vec
, compat_ulong_t vlen
);
351 asmlinkage ssize_t
compat_sys_preadv(compat_ulong_t fd
,
352 const struct compat_iovec __user
*vec
,
353 compat_ulong_t vlen
, u32 pos_low
, u32 pos_high
);
354 asmlinkage ssize_t
compat_sys_pwritev(compat_ulong_t fd
,
355 const struct compat_iovec __user
*vec
,
356 compat_ulong_t vlen
, u32 pos_low
, u32 pos_high
);
357 asmlinkage ssize_t
compat_sys_preadv2(compat_ulong_t fd
,
358 const struct compat_iovec __user
*vec
,
359 compat_ulong_t vlen
, u32 pos_low
, u32 pos_high
, rwf_t flags
);
360 asmlinkage ssize_t
compat_sys_pwritev2(compat_ulong_t fd
,
361 const struct compat_iovec __user
*vec
,
362 compat_ulong_t vlen
, u32 pos_low
, u32 pos_high
, rwf_t flags
);
364 #ifdef __ARCH_WANT_COMPAT_SYS_PREADV64
365 asmlinkage
long compat_sys_preadv64(unsigned long fd
,
366 const struct compat_iovec __user
*vec
,
367 unsigned long vlen
, loff_t pos
);
370 #ifdef __ARCH_WANT_COMPAT_SYS_PWRITEV64
371 asmlinkage
long compat_sys_pwritev64(unsigned long fd
,
372 const struct compat_iovec __user
*vec
,
373 unsigned long vlen
, loff_t pos
);
376 #ifdef __ARCH_WANT_COMPAT_SYS_PREADV64V2
377 asmlinkage
long compat_sys_readv64v2(unsigned long fd
,
378 const struct compat_iovec __user
*vec
,
379 unsigned long vlen
, loff_t pos
, rwf_t flags
);
382 #ifdef __ARCH_WANT_COMPAT_SYS_PWRITEV64V2
383 asmlinkage
long compat_sys_pwritev64v2(unsigned long fd
,
384 const struct compat_iovec __user
*vec
,
385 unsigned long vlen
, loff_t pos
, rwf_t flags
);
388 asmlinkage
long compat_sys_lseek(unsigned int, compat_off_t
, unsigned int);
390 asmlinkage
long compat_sys_execve(const char __user
*filename
, const compat_uptr_t __user
*argv
,
391 const compat_uptr_t __user
*envp
);
392 asmlinkage
long compat_sys_execveat(int dfd
, const char __user
*filename
,
393 const compat_uptr_t __user
*argv
,
394 const compat_uptr_t __user
*envp
, int flags
);
396 asmlinkage
long compat_sys_select(int n
, compat_ulong_t __user
*inp
,
397 compat_ulong_t __user
*outp
, compat_ulong_t __user
*exp
,
398 struct compat_timeval __user
*tvp
);
400 asmlinkage
long compat_sys_old_select(struct compat_sel_arg_struct __user
*arg
);
402 asmlinkage
long compat_sys_wait4(compat_pid_t pid
,
403 compat_uint_t __user
*stat_addr
, int options
,
404 struct compat_rusage __user
*ru
);
406 #define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t))
408 #define BITS_TO_COMPAT_LONGS(bits) DIV_ROUND_UP(bits, BITS_PER_COMPAT_LONG)
410 long compat_get_bitmap(unsigned long *mask
, const compat_ulong_t __user
*umask
,
411 unsigned long bitmap_size
);
412 long compat_put_bitmap(compat_ulong_t __user
*umask
, unsigned long *mask
,
413 unsigned long bitmap_size
);
414 int copy_siginfo_from_user32(siginfo_t
*to
, struct compat_siginfo __user
*from
);
415 int copy_siginfo_to_user32(struct compat_siginfo __user
*to
, const siginfo_t
*from
);
416 int get_compat_sigevent(struct sigevent
*event
,
417 const struct compat_sigevent __user
*u_event
);
418 long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid
, compat_pid_t pid
, int sig
,
419 struct compat_siginfo __user
*uinfo
);
420 #ifdef CONFIG_COMPAT_OLD_SIGACTION
421 asmlinkage
long compat_sys_sigaction(int sig
,
422 const struct compat_old_sigaction __user
*act
,
423 struct compat_old_sigaction __user
*oact
);
426 static inline int compat_timeval_compare(struct compat_timeval
*lhs
,
427 struct compat_timeval
*rhs
)
429 if (lhs
->tv_sec
< rhs
->tv_sec
)
431 if (lhs
->tv_sec
> rhs
->tv_sec
)
433 return lhs
->tv_usec
- rhs
->tv_usec
;
436 static inline int compat_timespec_compare(struct compat_timespec
*lhs
,
437 struct compat_timespec
*rhs
)
439 if (lhs
->tv_sec
< rhs
->tv_sec
)
441 if (lhs
->tv_sec
> rhs
->tv_sec
)
443 return lhs
->tv_nsec
- rhs
->tv_nsec
;
446 extern int get_compat_itimerspec(struct itimerspec
*dst
,
447 const struct compat_itimerspec __user
*src
);
448 extern int put_compat_itimerspec(struct compat_itimerspec __user
*dst
,
449 const struct itimerspec
*src
);
451 asmlinkage
long compat_sys_gettimeofday(struct compat_timeval __user
*tv
,
452 struct timezone __user
*tz
);
453 asmlinkage
long compat_sys_settimeofday(struct compat_timeval __user
*tv
,
454 struct timezone __user
*tz
);
456 asmlinkage
long compat_sys_adjtimex(struct compat_timex __user
*utp
);
458 extern void sigset_from_compat(sigset_t
*set
, const compat_sigset_t
*compat
);
459 extern void sigset_to_compat(compat_sigset_t
*compat
, const sigset_t
*set
);
461 asmlinkage
long compat_sys_migrate_pages(compat_pid_t pid
,
462 compat_ulong_t maxnode
, const compat_ulong_t __user
*old_nodes
,
463 const compat_ulong_t __user
*new_nodes
);
465 extern int compat_ptrace_request(struct task_struct
*child
,
466 compat_long_t request
,
467 compat_ulong_t addr
, compat_ulong_t data
);
469 extern long compat_arch_ptrace(struct task_struct
*child
, compat_long_t request
,
470 compat_ulong_t addr
, compat_ulong_t data
);
471 asmlinkage
long compat_sys_ptrace(compat_long_t request
, compat_long_t pid
,
472 compat_long_t addr
, compat_long_t data
);
474 asmlinkage
long compat_sys_lookup_dcookie(u32
, u32
, char __user
*, compat_size_t
);
476 * epoll (fs/eventpoll.c) compat bits follow ...
478 struct epoll_event
; /* fortunately, this one is fixed-layout */
479 asmlinkage
long compat_sys_epoll_pwait(int epfd
,
480 struct epoll_event __user
*events
,
481 int maxevents
, int timeout
,
482 const compat_sigset_t __user
*sigmask
,
483 compat_size_t sigsetsize
);
485 asmlinkage
long compat_sys_utime(const char __user
*filename
,
486 struct compat_utimbuf __user
*t
);
487 asmlinkage
long compat_sys_utimensat(unsigned int dfd
,
488 const char __user
*filename
,
489 struct compat_timespec __user
*t
,
492 asmlinkage
long compat_sys_time(compat_time_t __user
*tloc
);
493 asmlinkage
long compat_sys_stime(compat_time_t __user
*tptr
);
494 asmlinkage
long compat_sys_signalfd(int ufd
,
495 const compat_sigset_t __user
*sigmask
,
496 compat_size_t sigsetsize
);
497 asmlinkage
long compat_sys_timerfd_settime(int ufd
, int flags
,
498 const struct compat_itimerspec __user
*utmr
,
499 struct compat_itimerspec __user
*otmr
);
500 asmlinkage
long compat_sys_timerfd_gettime(int ufd
,
501 struct compat_itimerspec __user
*otmr
);
503 asmlinkage
long compat_sys_move_pages(pid_t pid
, compat_ulong_t nr_pages
,
505 const int __user
*nodes
,
508 asmlinkage
long compat_sys_futimesat(unsigned int dfd
,
509 const char __user
*filename
,
510 struct compat_timeval __user
*t
);
511 asmlinkage
long compat_sys_utimes(const char __user
*filename
,
512 struct compat_timeval __user
*t
);
513 asmlinkage
long compat_sys_newstat(const char __user
*filename
,
514 struct compat_stat __user
*statbuf
);
515 asmlinkage
long compat_sys_newlstat(const char __user
*filename
,
516 struct compat_stat __user
*statbuf
);
517 asmlinkage
long compat_sys_newfstatat(unsigned int dfd
,
518 const char __user
*filename
,
519 struct compat_stat __user
*statbuf
,
521 asmlinkage
long compat_sys_newfstat(unsigned int fd
,
522 struct compat_stat __user
*statbuf
);
523 asmlinkage
long compat_sys_statfs(const char __user
*pathname
,
524 struct compat_statfs __user
*buf
);
525 asmlinkage
long compat_sys_fstatfs(unsigned int fd
,
526 struct compat_statfs __user
*buf
);
527 asmlinkage
long compat_sys_statfs64(const char __user
*pathname
,
529 struct compat_statfs64 __user
*buf
);
530 asmlinkage
long compat_sys_fstatfs64(unsigned int fd
, compat_size_t sz
,
531 struct compat_statfs64 __user
*buf
);
532 asmlinkage
long compat_sys_fcntl64(unsigned int fd
, unsigned int cmd
,
534 asmlinkage
long compat_sys_fcntl(unsigned int fd
, unsigned int cmd
,
536 asmlinkage
long compat_sys_io_setup(unsigned nr_reqs
, u32 __user
*ctx32p
);
537 asmlinkage
long compat_sys_io_getevents(compat_aio_context_t ctx_id
,
538 compat_long_t min_nr
,
540 struct io_event __user
*events
,
541 struct compat_timespec __user
*timeout
);
542 asmlinkage
long compat_sys_io_submit(compat_aio_context_t ctx_id
, int nr
,
544 asmlinkage
long compat_sys_mount(const char __user
*dev_name
,
545 const char __user
*dir_name
,
546 const char __user
*type
, compat_ulong_t flags
,
547 const void __user
*data
);
548 asmlinkage
long compat_sys_old_readdir(unsigned int fd
,
549 struct compat_old_linux_dirent __user
*,
551 asmlinkage
long compat_sys_getdents(unsigned int fd
,
552 struct compat_linux_dirent __user
*dirent
,
554 asmlinkage
long compat_sys_vmsplice(int fd
, const struct compat_iovec __user
*,
555 unsigned int nr_segs
, unsigned int flags
);
556 asmlinkage
long compat_sys_open(const char __user
*filename
, int flags
,
558 asmlinkage
long compat_sys_openat(int dfd
, const char __user
*filename
,
559 int flags
, umode_t mode
);
560 asmlinkage
long compat_sys_open_by_handle_at(int mountdirfd
,
561 struct file_handle __user
*handle
,
563 asmlinkage
long compat_sys_truncate(const char __user
*, compat_off_t
);
564 asmlinkage
long compat_sys_ftruncate(unsigned int, compat_ulong_t
);
565 asmlinkage
long compat_sys_pselect6(int n
, compat_ulong_t __user
*inp
,
566 compat_ulong_t __user
*outp
,
567 compat_ulong_t __user
*exp
,
568 struct compat_timespec __user
*tsp
,
570 asmlinkage
long compat_sys_ppoll(struct pollfd __user
*ufds
,
572 struct compat_timespec __user
*tsp
,
573 const compat_sigset_t __user
*sigmask
,
574 compat_size_t sigsetsize
);
575 asmlinkage
long compat_sys_signalfd4(int ufd
,
576 const compat_sigset_t __user
*sigmask
,
577 compat_size_t sigsetsize
, int flags
);
578 asmlinkage
long compat_sys_get_mempolicy(int __user
*policy
,
579 compat_ulong_t __user
*nmask
,
580 compat_ulong_t maxnode
,
582 compat_ulong_t flags
);
583 asmlinkage
long compat_sys_set_mempolicy(int mode
, compat_ulong_t __user
*nmask
,
584 compat_ulong_t maxnode
);
585 asmlinkage
long compat_sys_mbind(compat_ulong_t start
, compat_ulong_t len
,
587 compat_ulong_t __user
*nmask
,
588 compat_ulong_t maxnode
, compat_ulong_t flags
);
590 asmlinkage
long compat_sys_setsockopt(int fd
, int level
, int optname
,
591 char __user
*optval
, unsigned int optlen
);
592 asmlinkage
long compat_sys_sendmsg(int fd
, struct compat_msghdr __user
*msg
,
594 asmlinkage
long compat_sys_sendmmsg(int fd
, struct compat_mmsghdr __user
*mmsg
,
595 unsigned vlen
, unsigned int flags
);
596 asmlinkage
long compat_sys_recvmsg(int fd
, struct compat_msghdr __user
*msg
,
598 asmlinkage
long compat_sys_recv(int fd
, void __user
*buf
, compat_size_t len
,
600 asmlinkage
long compat_sys_recvfrom(int fd
, void __user
*buf
, compat_size_t len
,
601 unsigned flags
, struct sockaddr __user
*addr
,
602 int __user
*addrlen
);
603 asmlinkage
long compat_sys_recvmmsg(int fd
, struct compat_mmsghdr __user
*mmsg
,
604 unsigned vlen
, unsigned int flags
,
605 struct compat_timespec __user
*timeout
);
606 asmlinkage
long compat_sys_nanosleep(struct compat_timespec __user
*rqtp
,
607 struct compat_timespec __user
*rmtp
);
608 asmlinkage
long compat_sys_getitimer(int which
,
609 struct compat_itimerval __user
*it
);
610 asmlinkage
long compat_sys_setitimer(int which
,
611 struct compat_itimerval __user
*in
,
612 struct compat_itimerval __user
*out
);
613 asmlinkage
long compat_sys_times(struct compat_tms __user
*tbuf
);
614 asmlinkage
long compat_sys_setrlimit(unsigned int resource
,
615 struct compat_rlimit __user
*rlim
);
616 asmlinkage
long compat_sys_getrlimit(unsigned int resource
,
617 struct compat_rlimit __user
*rlim
);
618 asmlinkage
long compat_sys_getrusage(int who
, struct compat_rusage __user
*ru
);
619 asmlinkage
long compat_sys_sched_setaffinity(compat_pid_t pid
,
621 compat_ulong_t __user
*user_mask_ptr
);
622 asmlinkage
long compat_sys_sched_getaffinity(compat_pid_t pid
,
624 compat_ulong_t __user
*user_mask_ptr
);
625 asmlinkage
long compat_sys_timer_create(clockid_t which_clock
,
626 struct compat_sigevent __user
*timer_event_spec
,
627 timer_t __user
*created_timer_id
);
628 asmlinkage
long compat_sys_timer_settime(timer_t timer_id
, int flags
,
629 struct compat_itimerspec __user
*new,
630 struct compat_itimerspec __user
*old
);
631 asmlinkage
long compat_sys_timer_gettime(timer_t timer_id
,
632 struct compat_itimerspec __user
*setting
);
633 asmlinkage
long compat_sys_clock_settime(clockid_t which_clock
,
634 struct compat_timespec __user
*tp
);
635 asmlinkage
long compat_sys_clock_gettime(clockid_t which_clock
,
636 struct compat_timespec __user
*tp
);
637 asmlinkage
long compat_sys_clock_adjtime(clockid_t which_clock
,
638 struct compat_timex __user
*tp
);
639 asmlinkage
long compat_sys_clock_getres(clockid_t which_clock
,
640 struct compat_timespec __user
*tp
);
641 asmlinkage
long compat_sys_clock_nanosleep(clockid_t which_clock
, int flags
,
642 struct compat_timespec __user
*rqtp
,
643 struct compat_timespec __user
*rmtp
);
644 asmlinkage
long compat_sys_rt_sigtimedwait(compat_sigset_t __user
*uthese
,
645 struct compat_siginfo __user
*uinfo
,
646 struct compat_timespec __user
*uts
, compat_size_t sigsetsize
);
647 asmlinkage
long compat_sys_rt_sigsuspend(compat_sigset_t __user
*unewset
,
648 compat_size_t sigsetsize
);
649 asmlinkage
long compat_sys_rt_sigprocmask(int how
, compat_sigset_t __user
*set
,
650 compat_sigset_t __user
*oset
,
651 compat_size_t sigsetsize
);
652 asmlinkage
long compat_sys_rt_sigpending(compat_sigset_t __user
*uset
,
653 compat_size_t sigsetsize
);
654 #ifndef CONFIG_ODD_RT_SIGACTION
655 asmlinkage
long compat_sys_rt_sigaction(int,
656 const struct compat_sigaction __user
*,
657 struct compat_sigaction __user
*,
660 asmlinkage
long compat_sys_rt_sigqueueinfo(compat_pid_t pid
, int sig
,
661 struct compat_siginfo __user
*uinfo
);
662 asmlinkage
long compat_sys_sysinfo(struct compat_sysinfo __user
*info
);
663 asmlinkage
long compat_sys_ioctl(unsigned int fd
, unsigned int cmd
,
665 asmlinkage
long compat_sys_futex(u32 __user
*uaddr
, int op
, u32 val
,
666 struct compat_timespec __user
*utime
, u32 __user
*uaddr2
,
668 asmlinkage
long compat_sys_getsockopt(int fd
, int level
, int optname
,
669 char __user
*optval
, int __user
*optlen
);
670 asmlinkage
long compat_sys_kexec_load(compat_ulong_t entry
,
671 compat_ulong_t nr_segments
,
672 struct compat_kexec_segment __user
*,
673 compat_ulong_t flags
);
674 asmlinkage
long compat_sys_mq_getsetattr(mqd_t mqdes
,
675 const struct compat_mq_attr __user
*u_mqstat
,
676 struct compat_mq_attr __user
*u_omqstat
);
677 asmlinkage
long compat_sys_mq_notify(mqd_t mqdes
,
678 const struct compat_sigevent __user
*u_notification
);
679 asmlinkage
long compat_sys_mq_open(const char __user
*u_name
,
680 int oflag
, compat_mode_t mode
,
681 struct compat_mq_attr __user
*u_attr
);
682 asmlinkage
long compat_sys_mq_timedsend(mqd_t mqdes
,
683 const char __user
*u_msg_ptr
,
684 compat_size_t msg_len
, unsigned int msg_prio
,
685 const struct compat_timespec __user
*u_abs_timeout
);
686 asmlinkage ssize_t
compat_sys_mq_timedreceive(mqd_t mqdes
,
687 char __user
*u_msg_ptr
,
688 compat_size_t msg_len
, unsigned int __user
*u_msg_prio
,
689 const struct compat_timespec __user
*u_abs_timeout
);
690 asmlinkage
long compat_sys_socketcall(int call
, u32 __user
*args
);
691 asmlinkage
long compat_sys_sysctl(struct compat_sysctl_args __user
*args
);
693 extern ssize_t
compat_rw_copy_check_uvector(int type
,
694 const struct compat_iovec __user
*uvector
,
695 unsigned long nr_segs
,
696 unsigned long fast_segs
, struct iovec
*fast_pointer
,
697 struct iovec
**ret_pointer
);
699 extern void __user
*compat_alloc_user_space(unsigned long len
);
701 asmlinkage ssize_t
compat_sys_process_vm_readv(compat_pid_t pid
,
702 const struct compat_iovec __user
*lvec
,
703 compat_ulong_t liovcnt
, const struct compat_iovec __user
*rvec
,
704 compat_ulong_t riovcnt
, compat_ulong_t flags
);
705 asmlinkage ssize_t
compat_sys_process_vm_writev(compat_pid_t pid
,
706 const struct compat_iovec __user
*lvec
,
707 compat_ulong_t liovcnt
, const struct compat_iovec __user
*rvec
,
708 compat_ulong_t riovcnt
, compat_ulong_t flags
);
710 asmlinkage
long compat_sys_sendfile(int out_fd
, int in_fd
,
711 compat_off_t __user
*offset
, compat_size_t count
);
712 asmlinkage
long compat_sys_sendfile64(int out_fd
, int in_fd
,
713 compat_loff_t __user
*offset
, compat_size_t count
);
714 asmlinkage
long compat_sys_sigaltstack(const compat_stack_t __user
*uss_ptr
,
715 compat_stack_t __user
*uoss_ptr
);
717 #ifdef __ARCH_WANT_SYS_SIGPENDING
718 asmlinkage
long compat_sys_sigpending(compat_old_sigset_t __user
*set
);
721 #ifdef __ARCH_WANT_SYS_SIGPROCMASK
722 asmlinkage
long compat_sys_sigprocmask(int how
, compat_old_sigset_t __user
*nset
,
723 compat_old_sigset_t __user
*oset
);
726 int compat_restore_altstack(const compat_stack_t __user
*uss
);
727 int __compat_save_altstack(compat_stack_t __user
*, unsigned long);
728 #define compat_save_altstack_ex(uss, sp) do { \
729 compat_stack_t __user *__uss = uss; \
730 struct task_struct *t = current; \
731 put_user_ex(ptr_to_compat((void __user *)t->sas_ss_sp), &__uss->ss_sp); \
732 put_user_ex(t->sas_ss_flags, &__uss->ss_flags); \
733 put_user_ex(t->sas_ss_size, &__uss->ss_size); \
734 if (t->sas_ss_flags & SS_AUTODISARM) \
738 asmlinkage
long compat_sys_sched_rr_get_interval(compat_pid_t pid
,
739 struct compat_timespec __user
*interval
);
741 asmlinkage
long compat_sys_fanotify_mark(int, unsigned int, __u32
, __u32
,
742 int, const char __user
*);
744 asmlinkage
long compat_sys_arch_prctl(int option
, unsigned long arg2
);
747 * For most but not all architectures, "am I in a compat syscall?" and
748 * "am I a compat task?" are the same question. For architectures on which
749 * they aren't the same question, arch code can override in_compat_syscall.
752 #ifndef in_compat_syscall
753 static inline bool in_compat_syscall(void) { return is_compat_task(); }
757 * ns_to_compat_timeval - Compat version of ns_to_timeval
758 * @nsec: the nanoseconds value to be converted
760 * Returns the compat_timeval representation of the nsec parameter.
762 static inline struct compat_timeval
ns_to_compat_timeval(s64 nsec
)
765 struct compat_timeval ctv
;
767 tv
= ns_to_timeval(nsec
);
768 ctv
.tv_sec
= tv
.tv_sec
;
769 ctv
.tv_usec
= tv
.tv_usec
;
774 #else /* !CONFIG_COMPAT */
776 #define is_compat_task() (0)
777 static inline bool in_compat_syscall(void) { return false; }
779 #endif /* CONFIG_COMPAT */
781 #endif /* _LINUX_COMPAT_H */