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) ((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
);
175 * This function convert a timespec if necessary and returns a *user
176 * space* pointer. If no conversion is necessary, it returns the
177 * initial pointer. NULL is a legitimate argument and will always
180 extern int compat_convert_timespec(struct timespec __user
**,
181 const void __user
*);
183 struct compat_iovec
{
184 compat_uptr_t iov_base
;
185 compat_size_t iov_len
;
188 struct compat_rlimit
{
189 compat_ulong_t rlim_cur
;
190 compat_ulong_t rlim_max
;
193 struct 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
;
212 extern int put_compat_rusage(const struct rusage
*,
213 struct compat_rusage __user
*);
215 struct compat_siginfo
;
217 extern asmlinkage
long compat_sys_waitid(int, compat_pid_t
,
218 struct compat_siginfo __user
*, int,
219 struct compat_rusage __user
*);
221 struct compat_dirent
{
228 struct compat_ustat
{
229 compat_daddr_t f_tfree
;
230 compat_ino_t f_tinode
;
235 #define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
237 typedef struct compat_sigevent
{
238 compat_sigval_t sigev_value
;
239 compat_int_t sigev_signo
;
240 compat_int_t sigev_notify
;
242 compat_int_t _pad
[COMPAT_SIGEV_PAD_SIZE
];
246 compat_uptr_t _function
;
247 compat_uptr_t _attribute
;
252 struct compat_ifmap
{
253 compat_ulong_t mem_start
;
254 compat_ulong_t mem_end
;
255 unsigned short base_addr
;
261 struct compat_if_settings
{
262 unsigned int type
; /* Type of physical device or protocol */
263 unsigned int size
; /* Size of the data allocated by the caller */
264 compat_uptr_t ifs_ifsu
; /* union of pointers */
267 struct compat_ifreq
{
269 char ifrn_name
[IFNAMSIZ
]; /* if name, e.g. "en0" */
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
;
278 compat_int_t ifru_ivalue
;
279 compat_int_t ifru_mtu
;
280 struct compat_ifmap ifru_map
;
281 char ifru_slave
[IFNAMSIZ
]; /* Just fits the size */
282 char ifru_newname
[IFNAMSIZ
];
283 compat_caddr_t ifru_data
;
284 struct compat_if_settings ifru_settings
;
288 struct compat_ifconf
{
289 compat_int_t ifc_len
; /* size of buffer */
290 compat_caddr_t ifcbuf
;
293 struct compat_robust_list
{
297 struct compat_robust_list_head
{
298 struct compat_robust_list list
;
299 compat_long_t futex_offset
;
300 compat_uptr_t list_op_pending
;
303 #ifdef CONFIG_COMPAT_OLD_SIGACTION
304 struct 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
;
312 struct compat_keyctl_kdf_params
{
313 compat_uptr_t hashname
;
314 compat_uptr_t otherinfo
;
319 struct compat_statfs
;
320 struct compat_statfs64
;
321 struct compat_old_linux_dirent
;
322 struct compat_linux_dirent
;
323 struct linux_dirent64
;
324 struct compat_msghdr
;
325 struct compat_mmsghdr
;
326 struct compat_sysinfo
;
327 struct compat_sysctl_args
;
328 struct compat_kexec_segment
;
329 struct compat_mq_attr
;
330 struct compat_msgbuf
;
332 extern void compat_exit_robust_list(struct task_struct
*curr
);
335 compat_sys_set_robust_list(struct compat_robust_list_head __user
*head
,
338 compat_sys_get_robust_list(int pid
, compat_uptr_t __user
*head_ptr
,
339 compat_size_t __user
*len_ptr
);
341 asmlinkage
long compat_sys_ipc(u32
, int, int, u32
, compat_uptr_t
, u32
);
342 asmlinkage
long compat_sys_shmat(int shmid
, compat_uptr_t shmaddr
, int shmflg
);
343 asmlinkage
long compat_sys_semctl(int semid
, int semnum
, int cmd
, int arg
);
344 asmlinkage
long compat_sys_msgsnd(int msqid
, compat_uptr_t msgp
,
345 compat_ssize_t msgsz
, int msgflg
);
346 asmlinkage
long compat_sys_msgrcv(int msqid
, compat_uptr_t msgp
,
347 compat_ssize_t msgsz
, compat_long_t msgtyp
, int msgflg
);
348 long compat_sys_msgctl(int first
, int second
, void __user
*uptr
);
349 long compat_sys_shmctl(int first
, int second
, void __user
*uptr
);
350 long compat_sys_semtimedop(int semid
, struct sembuf __user
*tsems
,
351 unsigned nsems
, const struct compat_timespec __user
*timeout
);
352 asmlinkage
long compat_sys_keyctl(u32 option
,
353 u32 arg2
, u32 arg3
, u32 arg4
, u32 arg5
);
354 asmlinkage
long compat_sys_ustat(unsigned dev
, struct compat_ustat __user
*u32
);
356 asmlinkage ssize_t
compat_sys_readv(compat_ulong_t fd
,
357 const struct compat_iovec __user
*vec
, compat_ulong_t vlen
);
358 asmlinkage ssize_t
compat_sys_writev(compat_ulong_t fd
,
359 const struct compat_iovec __user
*vec
, compat_ulong_t vlen
);
360 asmlinkage 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
);
363 asmlinkage 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
);
366 asmlinkage 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
);
369 asmlinkage 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
);
373 #ifdef __ARCH_WANT_COMPAT_SYS_PREADV64
374 asmlinkage
long compat_sys_preadv64(unsigned long fd
,
375 const struct compat_iovec __user
*vec
,
376 unsigned long vlen
, loff_t pos
);
379 #ifdef __ARCH_WANT_COMPAT_SYS_PWRITEV64
380 asmlinkage
long compat_sys_pwritev64(unsigned long fd
,
381 const struct compat_iovec __user
*vec
,
382 unsigned long vlen
, loff_t pos
);
385 asmlinkage
long compat_sys_lseek(unsigned int, compat_off_t
, unsigned int);
387 asmlinkage
long compat_sys_execve(const char __user
*filename
, const compat_uptr_t __user
*argv
,
388 const compat_uptr_t __user
*envp
);
389 asmlinkage
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
);
393 asmlinkage
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
);
397 asmlinkage
long compat_sys_old_select(struct compat_sel_arg_struct __user
*arg
);
399 asmlinkage
long compat_sys_wait4(compat_pid_t pid
,
400 compat_uint_t __user
*stat_addr
, int options
,
401 struct compat_rusage __user
*ru
);
403 #define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t))
405 #define BITS_TO_COMPAT_LONGS(bits) DIV_ROUND_UP(bits, BITS_PER_COMPAT_LONG)
407 long compat_get_bitmap(unsigned long *mask
, const compat_ulong_t __user
*umask
,
408 unsigned long bitmap_size
);
409 long compat_put_bitmap(compat_ulong_t __user
*umask
, unsigned long *mask
,
410 unsigned long bitmap_size
);
411 int copy_siginfo_from_user32(siginfo_t
*to
, struct compat_siginfo __user
*from
);
412 int copy_siginfo_to_user32(struct compat_siginfo __user
*to
, const siginfo_t
*from
);
413 int get_compat_sigevent(struct sigevent
*event
,
414 const struct compat_sigevent __user
*u_event
);
415 long 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
418 asmlinkage
long compat_sys_sigaction(int sig
,
419 const struct compat_old_sigaction __user
*act
,
420 struct compat_old_sigaction __user
*oact
);
423 static inline int compat_timeval_compare(struct compat_timeval
*lhs
,
424 struct compat_timeval
*rhs
)
426 if (lhs
->tv_sec
< rhs
->tv_sec
)
428 if (lhs
->tv_sec
> rhs
->tv_sec
)
430 return lhs
->tv_usec
- rhs
->tv_usec
;
433 static inline int compat_timespec_compare(struct compat_timespec
*lhs
,
434 struct compat_timespec
*rhs
)
436 if (lhs
->tv_sec
< rhs
->tv_sec
)
438 if (lhs
->tv_sec
> rhs
->tv_sec
)
440 return lhs
->tv_nsec
- rhs
->tv_nsec
;
443 extern int get_compat_itimerspec(struct itimerspec
*dst
,
444 const struct compat_itimerspec __user
*src
);
445 extern int put_compat_itimerspec(struct compat_itimerspec __user
*dst
,
446 const struct itimerspec
*src
);
448 asmlinkage
long compat_sys_gettimeofday(struct compat_timeval __user
*tv
,
449 struct timezone __user
*tz
);
450 asmlinkage
long compat_sys_settimeofday(struct compat_timeval __user
*tv
,
451 struct timezone __user
*tz
);
453 asmlinkage
long compat_sys_adjtimex(struct compat_timex __user
*utp
);
455 extern void sigset_from_compat(sigset_t
*set
, const compat_sigset_t
*compat
);
456 extern void sigset_to_compat(compat_sigset_t
*compat
, const sigset_t
*set
);
458 asmlinkage
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
);
462 extern int compat_ptrace_request(struct task_struct
*child
,
463 compat_long_t request
,
464 compat_ulong_t addr
, compat_ulong_t data
);
466 extern long compat_arch_ptrace(struct task_struct
*child
, compat_long_t request
,
467 compat_ulong_t addr
, compat_ulong_t data
);
468 asmlinkage
long compat_sys_ptrace(compat_long_t request
, compat_long_t pid
,
469 compat_long_t addr
, compat_long_t data
);
471 asmlinkage
long compat_sys_lookup_dcookie(u32
, u32
, char __user
*, compat_size_t
);
473 * epoll (fs/eventpoll.c) compat bits follow ...
475 struct epoll_event
; /* fortunately, this one is fixed-layout */
476 asmlinkage
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
);
482 asmlinkage
long compat_sys_utime(const char __user
*filename
,
483 struct compat_utimbuf __user
*t
);
484 asmlinkage
long compat_sys_utimensat(unsigned int dfd
,
485 const char __user
*filename
,
486 struct compat_timespec __user
*t
,
489 asmlinkage
long compat_sys_time(compat_time_t __user
*tloc
);
490 asmlinkage
long compat_sys_stime(compat_time_t __user
*tptr
);
491 asmlinkage
long compat_sys_signalfd(int ufd
,
492 const compat_sigset_t __user
*sigmask
,
493 compat_size_t sigsetsize
);
494 asmlinkage
long compat_sys_timerfd_settime(int ufd
, int flags
,
495 const struct compat_itimerspec __user
*utmr
,
496 struct compat_itimerspec __user
*otmr
);
497 asmlinkage
long compat_sys_timerfd_gettime(int ufd
,
498 struct compat_itimerspec __user
*otmr
);
500 asmlinkage
long compat_sys_move_pages(pid_t pid
, compat_ulong_t nr_pages
,
502 const int __user
*nodes
,
505 asmlinkage
long compat_sys_futimesat(unsigned int dfd
,
506 const char __user
*filename
,
507 struct compat_timeval __user
*t
);
508 asmlinkage
long compat_sys_utimes(const char __user
*filename
,
509 struct compat_timeval __user
*t
);
510 asmlinkage
long compat_sys_newstat(const char __user
*filename
,
511 struct compat_stat __user
*statbuf
);
512 asmlinkage
long compat_sys_newlstat(const char __user
*filename
,
513 struct compat_stat __user
*statbuf
);
514 asmlinkage
long compat_sys_newfstatat(unsigned int dfd
,
515 const char __user
*filename
,
516 struct compat_stat __user
*statbuf
,
518 asmlinkage
long compat_sys_newfstat(unsigned int fd
,
519 struct compat_stat __user
*statbuf
);
520 asmlinkage
long compat_sys_statfs(const char __user
*pathname
,
521 struct compat_statfs __user
*buf
);
522 asmlinkage
long compat_sys_fstatfs(unsigned int fd
,
523 struct compat_statfs __user
*buf
);
524 asmlinkage
long compat_sys_statfs64(const char __user
*pathname
,
526 struct compat_statfs64 __user
*buf
);
527 asmlinkage
long compat_sys_fstatfs64(unsigned int fd
, compat_size_t sz
,
528 struct compat_statfs64 __user
*buf
);
529 asmlinkage
long compat_sys_fcntl64(unsigned int fd
, unsigned int cmd
,
531 asmlinkage
long compat_sys_fcntl(unsigned int fd
, unsigned int cmd
,
533 asmlinkage
long compat_sys_io_setup(unsigned nr_reqs
, u32 __user
*ctx32p
);
534 asmlinkage
long compat_sys_io_getevents(compat_aio_context_t ctx_id
,
535 compat_long_t min_nr
,
537 struct io_event __user
*events
,
538 struct compat_timespec __user
*timeout
);
539 asmlinkage
long compat_sys_io_submit(compat_aio_context_t ctx_id
, int nr
,
541 asmlinkage
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
);
545 asmlinkage
long compat_sys_old_readdir(unsigned int fd
,
546 struct compat_old_linux_dirent __user
*,
548 asmlinkage
long compat_sys_getdents(unsigned int fd
,
549 struct compat_linux_dirent __user
*dirent
,
551 asmlinkage
long compat_sys_vmsplice(int fd
, const struct compat_iovec __user
*,
552 unsigned int nr_segs
, unsigned int flags
);
553 asmlinkage
long compat_sys_open(const char __user
*filename
, int flags
,
555 asmlinkage
long compat_sys_openat(int dfd
, const char __user
*filename
,
556 int flags
, umode_t mode
);
557 asmlinkage
long compat_sys_open_by_handle_at(int mountdirfd
,
558 struct file_handle __user
*handle
,
560 asmlinkage
long compat_sys_truncate(const char __user
*, compat_off_t
);
561 asmlinkage
long compat_sys_ftruncate(unsigned int, compat_ulong_t
);
562 asmlinkage
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
,
567 asmlinkage
long compat_sys_ppoll(struct pollfd __user
*ufds
,
569 struct compat_timespec __user
*tsp
,
570 const compat_sigset_t __user
*sigmask
,
571 compat_size_t sigsetsize
);
572 asmlinkage
long compat_sys_signalfd4(int ufd
,
573 const compat_sigset_t __user
*sigmask
,
574 compat_size_t sigsetsize
, int flags
);
575 asmlinkage
long compat_sys_get_mempolicy(int __user
*policy
,
576 compat_ulong_t __user
*nmask
,
577 compat_ulong_t maxnode
,
579 compat_ulong_t flags
);
580 asmlinkage
long compat_sys_set_mempolicy(int mode
, compat_ulong_t __user
*nmask
,
581 compat_ulong_t maxnode
);
582 asmlinkage
long compat_sys_mbind(compat_ulong_t start
, compat_ulong_t len
,
584 compat_ulong_t __user
*nmask
,
585 compat_ulong_t maxnode
, compat_ulong_t flags
);
587 asmlinkage
long compat_sys_setsockopt(int fd
, int level
, int optname
,
588 char __user
*optval
, unsigned int optlen
);
589 asmlinkage
long compat_sys_sendmsg(int fd
, struct compat_msghdr __user
*msg
,
591 asmlinkage
long compat_sys_sendmmsg(int fd
, struct compat_mmsghdr __user
*mmsg
,
592 unsigned vlen
, unsigned int flags
);
593 asmlinkage
long compat_sys_recvmsg(int fd
, struct compat_msghdr __user
*msg
,
595 asmlinkage
long compat_sys_recv(int fd
, void __user
*buf
, compat_size_t len
,
597 asmlinkage
long compat_sys_recvfrom(int fd
, void __user
*buf
, compat_size_t len
,
598 unsigned flags
, struct sockaddr __user
*addr
,
599 int __user
*addrlen
);
600 asmlinkage
long compat_sys_recvmmsg(int fd
, struct compat_mmsghdr __user
*mmsg
,
601 unsigned vlen
, unsigned int flags
,
602 struct compat_timespec __user
*timeout
);
603 asmlinkage
long compat_sys_nanosleep(struct compat_timespec __user
*rqtp
,
604 struct compat_timespec __user
*rmtp
);
605 asmlinkage
long compat_sys_getitimer(int which
,
606 struct compat_itimerval __user
*it
);
607 asmlinkage
long compat_sys_setitimer(int which
,
608 struct compat_itimerval __user
*in
,
609 struct compat_itimerval __user
*out
);
610 asmlinkage
long compat_sys_times(struct compat_tms __user
*tbuf
);
611 asmlinkage
long compat_sys_setrlimit(unsigned int resource
,
612 struct compat_rlimit __user
*rlim
);
613 asmlinkage
long compat_sys_getrlimit(unsigned int resource
,
614 struct compat_rlimit __user
*rlim
);
615 asmlinkage
long compat_sys_getrusage(int who
, struct compat_rusage __user
*ru
);
616 asmlinkage
long compat_sys_sched_setaffinity(compat_pid_t pid
,
618 compat_ulong_t __user
*user_mask_ptr
);
619 asmlinkage
long compat_sys_sched_getaffinity(compat_pid_t pid
,
621 compat_ulong_t __user
*user_mask_ptr
);
622 asmlinkage
long compat_sys_timer_create(clockid_t which_clock
,
623 struct compat_sigevent __user
*timer_event_spec
,
624 timer_t __user
*created_timer_id
);
625 asmlinkage
long compat_sys_timer_settime(timer_t timer_id
, int flags
,
626 struct compat_itimerspec __user
*new,
627 struct compat_itimerspec __user
*old
);
628 asmlinkage
long compat_sys_timer_gettime(timer_t timer_id
,
629 struct compat_itimerspec __user
*setting
);
630 asmlinkage
long compat_sys_clock_settime(clockid_t which_clock
,
631 struct compat_timespec __user
*tp
);
632 asmlinkage
long compat_sys_clock_gettime(clockid_t which_clock
,
633 struct compat_timespec __user
*tp
);
634 asmlinkage
long compat_sys_clock_adjtime(clockid_t which_clock
,
635 struct compat_timex __user
*tp
);
636 asmlinkage
long compat_sys_clock_getres(clockid_t which_clock
,
637 struct compat_timespec __user
*tp
);
638 asmlinkage
long compat_sys_clock_nanosleep(clockid_t which_clock
, int flags
,
639 struct compat_timespec __user
*rqtp
,
640 struct compat_timespec __user
*rmtp
);
641 asmlinkage
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
);
644 asmlinkage
long compat_sys_rt_sigsuspend(compat_sigset_t __user
*unewset
,
645 compat_size_t sigsetsize
);
646 asmlinkage
long compat_sys_rt_sigprocmask(int how
, compat_sigset_t __user
*set
,
647 compat_sigset_t __user
*oset
,
648 compat_size_t sigsetsize
);
649 asmlinkage
long compat_sys_rt_sigpending(compat_sigset_t __user
*uset
,
650 compat_size_t sigsetsize
);
651 #ifndef CONFIG_ODD_RT_SIGACTION
652 asmlinkage
long compat_sys_rt_sigaction(int,
653 const struct compat_sigaction __user
*,
654 struct compat_sigaction __user
*,
657 asmlinkage
long compat_sys_rt_sigqueueinfo(compat_pid_t pid
, int sig
,
658 struct compat_siginfo __user
*uinfo
);
659 asmlinkage
long compat_sys_sysinfo(struct compat_sysinfo __user
*info
);
660 asmlinkage
long compat_sys_ioctl(unsigned int fd
, unsigned int cmd
,
662 asmlinkage
long compat_sys_futex(u32 __user
*uaddr
, int op
, u32 val
,
663 struct compat_timespec __user
*utime
, u32 __user
*uaddr2
,
665 asmlinkage
long compat_sys_getsockopt(int fd
, int level
, int optname
,
666 char __user
*optval
, int __user
*optlen
);
667 asmlinkage
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
);
671 asmlinkage
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
);
674 asmlinkage
long compat_sys_mq_notify(mqd_t mqdes
,
675 const struct compat_sigevent __user
*u_notification
);
676 asmlinkage
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
);
679 asmlinkage
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
);
683 asmlinkage 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
);
687 asmlinkage
long compat_sys_socketcall(int call
, u32 __user
*args
);
688 asmlinkage
long compat_sys_sysctl(struct compat_sysctl_args __user
*args
);
690 extern 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
);
696 extern void __user
*compat_alloc_user_space(unsigned long len
);
698 asmlinkage 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
);
702 asmlinkage 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
);
707 asmlinkage
long compat_sys_sendfile(int out_fd
, int in_fd
,
708 compat_off_t __user
*offset
, compat_size_t count
);
709 asmlinkage
long compat_sys_sendfile64(int out_fd
, int in_fd
,
710 compat_loff_t __user
*offset
, compat_size_t count
);
711 asmlinkage
long compat_sys_sigaltstack(const compat_stack_t __user
*uss_ptr
,
712 compat_stack_t __user
*uoss_ptr
);
714 #ifdef __ARCH_WANT_SYS_SIGPENDING
715 asmlinkage
long compat_sys_sigpending(compat_old_sigset_t __user
*set
);
718 #ifdef __ARCH_WANT_SYS_SIGPROCMASK
719 asmlinkage
long compat_sys_sigprocmask(int how
, compat_old_sigset_t __user
*nset
,
720 compat_old_sigset_t __user
*oset
);
723 int compat_restore_altstack(const compat_stack_t __user
*uss
);
724 int __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) \
735 asmlinkage
long compat_sys_sched_rr_get_interval(compat_pid_t pid
,
736 struct compat_timespec __user
*interval
);
738 asmlinkage
long compat_sys_fanotify_mark(int, unsigned int, __u32
, __u32
,
739 int, const char __user
*);
741 asmlinkage
long compat_sys_arch_prctl(int option
, unsigned long arg2
);
744 * For most but not all architectures, "am I in a compat syscall?" and
745 * "am I a compat task?" are the same question. For architectures on which
746 * they aren't the same question, arch code can override in_compat_syscall.
749 #ifndef in_compat_syscall
750 static inline bool in_compat_syscall(void) { return is_compat_task(); }
754 * ns_to_compat_timeval - Compat version of ns_to_timeval
755 * @nsec: the nanoseconds value to be converted
757 * Returns the compat_timeval representation of the nsec parameter.
759 static inline struct compat_timeval
ns_to_compat_timeval(s64 nsec
)
762 struct compat_timeval ctv
;
764 tv
= ns_to_timeval(nsec
);
765 ctv
.tv_sec
= tv
.tv_sec
;
766 ctv
.tv_usec
= tv
.tv_usec
;
771 #else /* !CONFIG_COMPAT */
773 #define is_compat_task() (0)
774 static inline bool in_compat_syscall(void) { return false; }
776 #endif /* CONFIG_COMPAT */
778 #endif /* _LINUX_COMPAT_H */