This source file includes following definitions.
- old_timeval32_compare
- old_timespec32_compare
- put_compat_sigset
- in_compat_syscall
- ns_to_old_timeval32
- in_compat_syscall
1
2 #ifndef _LINUX_COMPAT_H
3 #define _LINUX_COMPAT_H
4
5
6
7
8
9 #include <linux/types.h>
10 #include <linux/time.h>
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/uaccess.h>
20 #include <linux/unistd.h>
21
22 #include <asm/compat.h>
23
24 #ifdef CONFIG_COMPAT
25 #include <asm/siginfo.h>
26 #include <asm/signal.h>
27 #endif
28
29 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
30
31
32
33
34
35
36
37 #include <asm/syscall_wrapper.h>
38 #endif
39
40 #ifndef COMPAT_USE_64BIT_TIME
41 #define COMPAT_USE_64BIT_TIME 0
42 #endif
43
44 #ifndef __SC_DELOUSE
45 #define __SC_DELOUSE(t,v) ((__force t)(unsigned long)(v))
46 #endif
47
48 #ifndef COMPAT_SYSCALL_DEFINE0
49 #define COMPAT_SYSCALL_DEFINE0(name) \
50 asmlinkage long compat_sys_##name(void); \
51 ALLOW_ERROR_INJECTION(compat_sys_##name, ERRNO); \
52 asmlinkage long compat_sys_##name(void)
53 #endif
54
55 #define COMPAT_SYSCALL_DEFINE1(name, ...) \
56 COMPAT_SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
57 #define COMPAT_SYSCALL_DEFINE2(name, ...) \
58 COMPAT_SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
59 #define COMPAT_SYSCALL_DEFINE3(name, ...) \
60 COMPAT_SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
61 #define COMPAT_SYSCALL_DEFINE4(name, ...) \
62 COMPAT_SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
63 #define COMPAT_SYSCALL_DEFINE5(name, ...) \
64 COMPAT_SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
65 #define COMPAT_SYSCALL_DEFINE6(name, ...) \
66 COMPAT_SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
67
68
69
70
71
72
73 #ifndef COMPAT_SYSCALL_DEFINEx
74 #define COMPAT_SYSCALL_DEFINEx(x, name, ...) \
75 __diag_push(); \
76 __diag_ignore(GCC, 8, "-Wattribute-alias", \
77 "Type aliasing is used to sanitize syscall arguments");\
78 asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \
79 asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
80 __attribute__((alias(__stringify(__se_compat_sys##name)))); \
81 ALLOW_ERROR_INJECTION(compat_sys##name, ERRNO); \
82 static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
83 asmlinkage long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
84 asmlinkage long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
85 { \
86 long ret = __do_compat_sys##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__));\
87 __MAP(x,__SC_TEST,__VA_ARGS__); \
88 return ret; \
89 } \
90 __diag_pop(); \
91 static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
92 #endif
93
94 #ifdef CONFIG_COMPAT
95
96 #ifndef compat_user_stack_pointer
97 #define compat_user_stack_pointer() current_user_stack_pointer()
98 #endif
99 #ifndef compat_sigaltstack
100 typedef struct compat_sigaltstack {
101 compat_uptr_t ss_sp;
102 int ss_flags;
103 compat_size_t ss_size;
104 } compat_stack_t;
105 #endif
106 #ifndef COMPAT_MINSIGSTKSZ
107 #define COMPAT_MINSIGSTKSZ MINSIGSTKSZ
108 #endif
109
110 #define compat_jiffies_to_clock_t(x) \
111 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
112
113 typedef __compat_uid32_t compat_uid_t;
114 typedef __compat_gid32_t compat_gid_t;
115
116 struct compat_sel_arg_struct;
117 struct rusage;
118
119 struct compat_itimerval {
120 struct old_timeval32 it_interval;
121 struct old_timeval32 it_value;
122 };
123
124 struct itimerval;
125 int get_compat_itimerval(struct itimerval *, const struct compat_itimerval __user *);
126 int put_compat_itimerval(struct compat_itimerval __user *, const struct itimerval *);
127
128 struct compat_tms {
129 compat_clock_t tms_utime;
130 compat_clock_t tms_stime;
131 compat_clock_t tms_cutime;
132 compat_clock_t tms_cstime;
133 };
134
135 #define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
136
137 typedef struct {
138 compat_sigset_word sig[_COMPAT_NSIG_WORDS];
139 } compat_sigset_t;
140
141 int set_compat_user_sigmask(const compat_sigset_t __user *umask,
142 size_t sigsetsize);
143
144 struct compat_sigaction {
145 #ifndef __ARCH_HAS_IRIX_SIGACTION
146 compat_uptr_t sa_handler;
147 compat_ulong_t sa_flags;
148 #else
149 compat_uint_t sa_flags;
150 compat_uptr_t sa_handler;
151 #endif
152 #ifdef __ARCH_HAS_SA_RESTORER
153 compat_uptr_t sa_restorer;
154 #endif
155 compat_sigset_t sa_mask __packed;
156 };
157
158 typedef union compat_sigval {
159 compat_int_t sival_int;
160 compat_uptr_t sival_ptr;
161 } compat_sigval_t;
162
163 typedef struct compat_siginfo {
164 int si_signo;
165 #ifndef __ARCH_HAS_SWAPPED_SIGINFO
166 int si_errno;
167 int si_code;
168 #else
169 int si_code;
170 int si_errno;
171 #endif
172
173 union {
174 int _pad[128/sizeof(int) - 3];
175
176
177 struct {
178 compat_pid_t _pid;
179 __compat_uid32_t _uid;
180 } _kill;
181
182
183 struct {
184 compat_timer_t _tid;
185 int _overrun;
186 compat_sigval_t _sigval;
187 } _timer;
188
189
190 struct {
191 compat_pid_t _pid;
192 __compat_uid32_t _uid;
193 compat_sigval_t _sigval;
194 } _rt;
195
196
197 struct {
198 compat_pid_t _pid;
199 __compat_uid32_t _uid;
200 int _status;
201 compat_clock_t _utime;
202 compat_clock_t _stime;
203 } _sigchld;
204
205 #ifdef CONFIG_X86_X32_ABI
206
207 struct {
208 compat_pid_t _pid;
209 __compat_uid32_t _uid;
210 int _status;
211 compat_s64 _utime;
212 compat_s64 _stime;
213 } _sigchld_x32;
214 #endif
215
216
217 struct {
218 compat_uptr_t _addr;
219 #ifdef __ARCH_SI_TRAPNO
220 int _trapno;
221 #endif
222 #define __COMPAT_ADDR_BND_PKEY_PAD (__alignof__(compat_uptr_t) < sizeof(short) ? \
223 sizeof(short) : __alignof__(compat_uptr_t))
224 union {
225
226
227
228
229 short int _addr_lsb;
230
231 struct {
232 char _dummy_bnd[__COMPAT_ADDR_BND_PKEY_PAD];
233 compat_uptr_t _lower;
234 compat_uptr_t _upper;
235 } _addr_bnd;
236
237 struct {
238 char _dummy_pkey[__COMPAT_ADDR_BND_PKEY_PAD];
239 u32 _pkey;
240 } _addr_pkey;
241 };
242 } _sigfault;
243
244
245 struct {
246 compat_long_t _band;
247 int _fd;
248 } _sigpoll;
249
250 struct {
251 compat_uptr_t _call_addr;
252 int _syscall;
253 unsigned int _arch;
254 } _sigsys;
255 } _sifields;
256 } compat_siginfo_t;
257
258
259
260
261
262 extern int compat_get_timespec(struct timespec *, const void __user *);
263 extern int compat_put_timespec(const struct timespec *, void __user *);
264 extern int compat_get_timeval(struct timeval *, const void __user *);
265 extern int compat_put_timeval(const struct timeval *, void __user *);
266
267 struct compat_iovec {
268 compat_uptr_t iov_base;
269 compat_size_t iov_len;
270 };
271
272 struct compat_rlimit {
273 compat_ulong_t rlim_cur;
274 compat_ulong_t rlim_max;
275 };
276
277 struct compat_rusage {
278 struct old_timeval32 ru_utime;
279 struct old_timeval32 ru_stime;
280 compat_long_t ru_maxrss;
281 compat_long_t ru_ixrss;
282 compat_long_t ru_idrss;
283 compat_long_t ru_isrss;
284 compat_long_t ru_minflt;
285 compat_long_t ru_majflt;
286 compat_long_t ru_nswap;
287 compat_long_t ru_inblock;
288 compat_long_t ru_oublock;
289 compat_long_t ru_msgsnd;
290 compat_long_t ru_msgrcv;
291 compat_long_t ru_nsignals;
292 compat_long_t ru_nvcsw;
293 compat_long_t ru_nivcsw;
294 };
295
296 extern int put_compat_rusage(const struct rusage *,
297 struct compat_rusage __user *);
298
299 struct compat_siginfo;
300 struct __compat_aio_sigset;
301
302 struct compat_dirent {
303 u32 d_ino;
304 compat_off_t d_off;
305 u16 d_reclen;
306 char d_name[256];
307 };
308
309 struct compat_ustat {
310 compat_daddr_t f_tfree;
311 compat_ino_t f_tinode;
312 char f_fname[6];
313 char f_fpack[6];
314 };
315
316 #define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
317
318 typedef struct compat_sigevent {
319 compat_sigval_t sigev_value;
320 compat_int_t sigev_signo;
321 compat_int_t sigev_notify;
322 union {
323 compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
324 compat_int_t _tid;
325
326 struct {
327 compat_uptr_t _function;
328 compat_uptr_t _attribute;
329 } _sigev_thread;
330 } _sigev_un;
331 } compat_sigevent_t;
332
333 struct compat_ifmap {
334 compat_ulong_t mem_start;
335 compat_ulong_t mem_end;
336 unsigned short base_addr;
337 unsigned char irq;
338 unsigned char dma;
339 unsigned char port;
340 };
341
342 struct compat_if_settings {
343 unsigned int type;
344 unsigned int size;
345 compat_uptr_t ifs_ifsu;
346 };
347
348 struct compat_ifreq {
349 union {
350 char ifrn_name[IFNAMSIZ];
351 } ifr_ifrn;
352 union {
353 struct sockaddr ifru_addr;
354 struct sockaddr ifru_dstaddr;
355 struct sockaddr ifru_broadaddr;
356 struct sockaddr ifru_netmask;
357 struct sockaddr ifru_hwaddr;
358 short ifru_flags;
359 compat_int_t ifru_ivalue;
360 compat_int_t ifru_mtu;
361 struct compat_ifmap ifru_map;
362 char ifru_slave[IFNAMSIZ];
363 char ifru_newname[IFNAMSIZ];
364 compat_caddr_t ifru_data;
365 struct compat_if_settings ifru_settings;
366 } ifr_ifru;
367 };
368
369 struct compat_ifconf {
370 compat_int_t ifc_len;
371 compat_caddr_t ifcbuf;
372 };
373
374 struct compat_robust_list {
375 compat_uptr_t next;
376 };
377
378 struct compat_robust_list_head {
379 struct compat_robust_list list;
380 compat_long_t futex_offset;
381 compat_uptr_t list_op_pending;
382 };
383
384 #ifdef CONFIG_COMPAT_OLD_SIGACTION
385 struct compat_old_sigaction {
386 compat_uptr_t sa_handler;
387 compat_old_sigset_t sa_mask;
388 compat_ulong_t sa_flags;
389 compat_uptr_t sa_restorer;
390 };
391 #endif
392
393 struct compat_keyctl_kdf_params {
394 compat_uptr_t hashname;
395 compat_uptr_t otherinfo;
396 __u32 otherinfolen;
397 __u32 __spare[8];
398 };
399
400 struct compat_statfs;
401 struct compat_statfs64;
402 struct compat_old_linux_dirent;
403 struct compat_linux_dirent;
404 struct linux_dirent64;
405 struct compat_msghdr;
406 struct compat_mmsghdr;
407 struct compat_sysinfo;
408 struct compat_sysctl_args;
409 struct compat_kexec_segment;
410 struct compat_mq_attr;
411 struct compat_msgbuf;
412
413 #define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t))
414
415 #define BITS_TO_COMPAT_LONGS(bits) DIV_ROUND_UP(bits, BITS_PER_COMPAT_LONG)
416
417 long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
418 unsigned long bitmap_size);
419 long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
420 unsigned long bitmap_size);
421 int copy_siginfo_from_user32(kernel_siginfo_t *to, const struct compat_siginfo __user *from);
422 int copy_siginfo_to_user32(struct compat_siginfo __user *to, const kernel_siginfo_t *from);
423 int get_compat_sigevent(struct sigevent *event,
424 const struct compat_sigevent __user *u_event);
425
426 static inline int old_timeval32_compare(struct old_timeval32 *lhs,
427 struct old_timeval32 *rhs)
428 {
429 if (lhs->tv_sec < rhs->tv_sec)
430 return -1;
431 if (lhs->tv_sec > rhs->tv_sec)
432 return 1;
433 return lhs->tv_usec - rhs->tv_usec;
434 }
435
436 static inline int old_timespec32_compare(struct old_timespec32 *lhs,
437 struct old_timespec32 *rhs)
438 {
439 if (lhs->tv_sec < rhs->tv_sec)
440 return -1;
441 if (lhs->tv_sec > rhs->tv_sec)
442 return 1;
443 return lhs->tv_nsec - rhs->tv_nsec;
444 }
445
446 extern int get_compat_sigset(sigset_t *set, const compat_sigset_t __user *compat);
447
448
449
450
451
452 static inline int
453 put_compat_sigset(compat_sigset_t __user *compat, const sigset_t *set,
454 unsigned int size)
455 {
456
457 #ifdef __BIG_ENDIAN
458 compat_sigset_t v;
459 switch (_NSIG_WORDS) {
460 case 4: v.sig[7] = (set->sig[3] >> 32); v.sig[6] = set->sig[3];
461
462 case 3: v.sig[5] = (set->sig[2] >> 32); v.sig[4] = set->sig[2];
463
464 case 2: v.sig[3] = (set->sig[1] >> 32); v.sig[2] = set->sig[1];
465
466 case 1: v.sig[1] = (set->sig[0] >> 32); v.sig[0] = set->sig[0];
467 }
468 return copy_to_user(compat, &v, size) ? -EFAULT : 0;
469 #else
470 return copy_to_user(compat, set, size) ? -EFAULT : 0;
471 #endif
472 }
473
474 extern int compat_ptrace_request(struct task_struct *child,
475 compat_long_t request,
476 compat_ulong_t addr, compat_ulong_t data);
477
478 extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
479 compat_ulong_t addr, compat_ulong_t data);
480
481 struct epoll_event;
482
483 extern ssize_t compat_rw_copy_check_uvector(int type,
484 const struct compat_iovec __user *uvector,
485 unsigned long nr_segs,
486 unsigned long fast_segs, struct iovec *fast_pointer,
487 struct iovec **ret_pointer);
488
489 extern void __user *compat_alloc_user_space(unsigned long len);
490
491 int compat_restore_altstack(const compat_stack_t __user *uss);
492 int __compat_save_altstack(compat_stack_t __user *, unsigned long);
493 #define compat_save_altstack_ex(uss, sp) do { \
494 compat_stack_t __user *__uss = uss; \
495 struct task_struct *t = current; \
496 put_user_ex(ptr_to_compat((void __user *)t->sas_ss_sp), &__uss->ss_sp); \
497 put_user_ex(t->sas_ss_flags, &__uss->ss_flags); \
498 put_user_ex(t->sas_ss_size, &__uss->ss_size); \
499 if (t->sas_ss_flags & SS_AUTODISARM) \
500 sas_ss_reset(t); \
501 } while (0);
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
517 asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p);
518 asmlinkage long compat_sys_io_submit(compat_aio_context_t ctx_id, int nr,
519 u32 __user *iocb);
520 asmlinkage long compat_sys_io_pgetevents(compat_aio_context_t ctx_id,
521 compat_long_t min_nr,
522 compat_long_t nr,
523 struct io_event __user *events,
524 struct old_timespec32 __user *timeout,
525 const struct __compat_aio_sigset __user *usig);
526 asmlinkage long compat_sys_io_pgetevents_time64(compat_aio_context_t ctx_id,
527 compat_long_t min_nr,
528 compat_long_t nr,
529 struct io_event __user *events,
530 struct __kernel_timespec __user *timeout,
531 const struct __compat_aio_sigset __user *usig);
532
533
534 asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, compat_size_t);
535
536
537 asmlinkage long compat_sys_epoll_pwait(int epfd,
538 struct epoll_event __user *events,
539 int maxevents, int timeout,
540 const compat_sigset_t __user *sigmask,
541 compat_size_t sigsetsize);
542
543
544 asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd,
545 compat_ulong_t arg);
546 asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd,
547 compat_ulong_t arg);
548
549
550 asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
551 compat_ulong_t arg);
552
553
554 asmlinkage long compat_sys_mount(const char __user *dev_name,
555 const char __user *dir_name,
556 const char __user *type, compat_ulong_t flags,
557 const void __user *data);
558
559
560 asmlinkage long compat_sys_statfs(const char __user *pathname,
561 struct compat_statfs __user *buf);
562 asmlinkage long compat_sys_statfs64(const char __user *pathname,
563 compat_size_t sz,
564 struct compat_statfs64 __user *buf);
565 asmlinkage long compat_sys_fstatfs(unsigned int fd,
566 struct compat_statfs __user *buf);
567 asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz,
568 struct compat_statfs64 __user *buf);
569 asmlinkage long compat_sys_truncate(const char __user *, compat_off_t);
570 asmlinkage long compat_sys_ftruncate(unsigned int, compat_ulong_t);
571
572 asmlinkage long compat_sys_openat(int dfd, const char __user *filename,
573 int flags, umode_t mode);
574
575
576 asmlinkage long compat_sys_getdents(unsigned int fd,
577 struct compat_linux_dirent __user *dirent,
578 unsigned int count);
579
580
581 asmlinkage long compat_sys_lseek(unsigned int, compat_off_t, unsigned int);
582 asmlinkage ssize_t compat_sys_readv(compat_ulong_t fd,
583 const struct compat_iovec __user *vec, compat_ulong_t vlen);
584 asmlinkage ssize_t compat_sys_writev(compat_ulong_t fd,
585 const struct compat_iovec __user *vec, compat_ulong_t vlen);
586
587 asmlinkage ssize_t compat_sys_preadv(compat_ulong_t fd,
588 const struct compat_iovec __user *vec,
589 compat_ulong_t vlen, u32 pos_low, u32 pos_high);
590 asmlinkage ssize_t compat_sys_pwritev(compat_ulong_t fd,
591 const struct compat_iovec __user *vec,
592 compat_ulong_t vlen, u32 pos_low, u32 pos_high);
593 #ifdef __ARCH_WANT_COMPAT_SYS_PREADV64
594 asmlinkage long compat_sys_preadv64(unsigned long fd,
595 const struct compat_iovec __user *vec,
596 unsigned long vlen, loff_t pos);
597 #endif
598
599 #ifdef __ARCH_WANT_COMPAT_SYS_PWRITEV64
600 asmlinkage long compat_sys_pwritev64(unsigned long fd,
601 const struct compat_iovec __user *vec,
602 unsigned long vlen, loff_t pos);
603 #endif
604
605
606 asmlinkage long compat_sys_sendfile(int out_fd, int in_fd,
607 compat_off_t __user *offset, compat_size_t count);
608 asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd,
609 compat_loff_t __user *offset, compat_size_t count);
610
611
612 asmlinkage long compat_sys_pselect6_time32(int n, compat_ulong_t __user *inp,
613 compat_ulong_t __user *outp,
614 compat_ulong_t __user *exp,
615 struct old_timespec32 __user *tsp,
616 void __user *sig);
617 asmlinkage long compat_sys_pselect6_time64(int n, compat_ulong_t __user *inp,
618 compat_ulong_t __user *outp,
619 compat_ulong_t __user *exp,
620 struct __kernel_timespec __user *tsp,
621 void __user *sig);
622 asmlinkage long compat_sys_ppoll_time32(struct pollfd __user *ufds,
623 unsigned int nfds,
624 struct old_timespec32 __user *tsp,
625 const compat_sigset_t __user *sigmask,
626 compat_size_t sigsetsize);
627 asmlinkage long compat_sys_ppoll_time64(struct pollfd __user *ufds,
628 unsigned int nfds,
629 struct __kernel_timespec __user *tsp,
630 const compat_sigset_t __user *sigmask,
631 compat_size_t sigsetsize);
632
633
634 asmlinkage long compat_sys_signalfd4(int ufd,
635 const compat_sigset_t __user *sigmask,
636 compat_size_t sigsetsize, int flags);
637
638
639 asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *,
640 unsigned int nr_segs, unsigned int flags);
641
642
643 asmlinkage long compat_sys_newfstatat(unsigned int dfd,
644 const char __user *filename,
645 struct compat_stat __user *statbuf,
646 int flag);
647 asmlinkage long compat_sys_newfstat(unsigned int fd,
648 struct compat_stat __user *statbuf);
649
650
651
652
653 asmlinkage long compat_sys_waitid(int, compat_pid_t,
654 struct compat_siginfo __user *, int,
655 struct compat_rusage __user *);
656
657
658
659
660 asmlinkage long
661 compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
662 compat_size_t len);
663 asmlinkage long
664 compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
665 compat_size_t __user *len_ptr);
666
667
668 asmlinkage long compat_sys_getitimer(int which,
669 struct compat_itimerval __user *it);
670 asmlinkage long compat_sys_setitimer(int which,
671 struct compat_itimerval __user *in,
672 struct compat_itimerval __user *out);
673
674
675 asmlinkage long compat_sys_kexec_load(compat_ulong_t entry,
676 compat_ulong_t nr_segments,
677 struct compat_kexec_segment __user *,
678 compat_ulong_t flags);
679
680
681 asmlinkage long compat_sys_timer_create(clockid_t which_clock,
682 struct compat_sigevent __user *timer_event_spec,
683 timer_t __user *created_timer_id);
684
685
686 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
687 compat_long_t addr, compat_long_t data);
688
689
690 asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid,
691 unsigned int len,
692 compat_ulong_t __user *user_mask_ptr);
693 asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid,
694 unsigned int len,
695 compat_ulong_t __user *user_mask_ptr);
696
697
698 asmlinkage long compat_sys_sigaltstack(const compat_stack_t __user *uss_ptr,
699 compat_stack_t __user *uoss_ptr);
700 asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset,
701 compat_size_t sigsetsize);
702 #ifndef CONFIG_ODD_RT_SIGACTION
703 asmlinkage long compat_sys_rt_sigaction(int,
704 const struct compat_sigaction __user *,
705 struct compat_sigaction __user *,
706 compat_size_t);
707 #endif
708 asmlinkage long compat_sys_rt_sigprocmask(int how, compat_sigset_t __user *set,
709 compat_sigset_t __user *oset,
710 compat_size_t sigsetsize);
711 asmlinkage long compat_sys_rt_sigpending(compat_sigset_t __user *uset,
712 compat_size_t sigsetsize);
713 asmlinkage long compat_sys_rt_sigtimedwait_time32(compat_sigset_t __user *uthese,
714 struct compat_siginfo __user *uinfo,
715 struct old_timespec32 __user *uts, compat_size_t sigsetsize);
716 asmlinkage long compat_sys_rt_sigtimedwait_time64(compat_sigset_t __user *uthese,
717 struct compat_siginfo __user *uinfo,
718 struct __kernel_timespec __user *uts, compat_size_t sigsetsize);
719 asmlinkage long compat_sys_rt_sigqueueinfo(compat_pid_t pid, int sig,
720 struct compat_siginfo __user *uinfo);
721
722
723
724 asmlinkage long compat_sys_times(struct compat_tms __user *tbuf);
725 asmlinkage long compat_sys_getrlimit(unsigned int resource,
726 struct compat_rlimit __user *rlim);
727 asmlinkage long compat_sys_setrlimit(unsigned int resource,
728 struct compat_rlimit __user *rlim);
729 asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru);
730
731
732 asmlinkage long compat_sys_gettimeofday(struct old_timeval32 __user *tv,
733 struct timezone __user *tz);
734 asmlinkage long compat_sys_settimeofday(struct old_timeval32 __user *tv,
735 struct timezone __user *tz);
736
737
738 asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info);
739
740
741 asmlinkage long compat_sys_mq_open(const char __user *u_name,
742 int oflag, compat_mode_t mode,
743 struct compat_mq_attr __user *u_attr);
744 asmlinkage long compat_sys_mq_notify(mqd_t mqdes,
745 const struct compat_sigevent __user *u_notification);
746 asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes,
747 const struct compat_mq_attr __user *u_mqstat,
748 struct compat_mq_attr __user *u_omqstat);
749
750
751 asmlinkage long compat_sys_msgctl(int first, int second, void __user *uptr);
752 asmlinkage long compat_sys_msgrcv(int msqid, compat_uptr_t msgp,
753 compat_ssize_t msgsz, compat_long_t msgtyp, int msgflg);
754 asmlinkage long compat_sys_msgsnd(int msqid, compat_uptr_t msgp,
755 compat_ssize_t msgsz, int msgflg);
756
757
758 asmlinkage long compat_sys_semctl(int semid, int semnum, int cmd, int arg);
759
760
761 asmlinkage long compat_sys_shmctl(int first, int second, void __user *uptr);
762 asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg);
763
764
765 asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, compat_size_t len,
766 unsigned flags, struct sockaddr __user *addr,
767 int __user *addrlen);
768 asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
769 char __user *optval, unsigned int optlen);
770 asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
771 char __user *optval, int __user *optlen);
772 asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg,
773 unsigned flags);
774 asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg,
775 unsigned int flags);
776
777
778
779
780 asmlinkage long compat_sys_keyctl(u32 option,
781 u32 arg2, u32 arg3, u32 arg4, u32 arg5);
782
783
784 asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv,
785 const compat_uptr_t __user *envp);
786
787
788
789
790 asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,
791 compat_ulong_t mode,
792 compat_ulong_t __user *nmask,
793 compat_ulong_t maxnode, compat_ulong_t flags);
794 asmlinkage long compat_sys_get_mempolicy(int __user *policy,
795 compat_ulong_t __user *nmask,
796 compat_ulong_t maxnode,
797 compat_ulong_t addr,
798 compat_ulong_t flags);
799 asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,
800 compat_ulong_t maxnode);
801 asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
802 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
803 const compat_ulong_t __user *new_nodes);
804 asmlinkage long compat_sys_move_pages(pid_t pid, compat_ulong_t nr_pages,
805 __u32 __user *pages,
806 const int __user *nodes,
807 int __user *status,
808 int flags);
809
810 asmlinkage long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid,
811 compat_pid_t pid, int sig,
812 struct compat_siginfo __user *uinfo);
813 asmlinkage long compat_sys_recvmmsg_time64(int fd, struct compat_mmsghdr __user *mmsg,
814 unsigned vlen, unsigned int flags,
815 struct __kernel_timespec __user *timeout);
816 asmlinkage long compat_sys_recvmmsg_time32(int fd, struct compat_mmsghdr __user *mmsg,
817 unsigned vlen, unsigned int flags,
818 struct old_timespec32 __user *timeout);
819 asmlinkage long compat_sys_wait4(compat_pid_t pid,
820 compat_uint_t __user *stat_addr, int options,
821 struct compat_rusage __user *ru);
822 asmlinkage long compat_sys_fanotify_mark(int, unsigned int, __u32, __u32,
823 int, const char __user *);
824 asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,
825 struct file_handle __user *handle,
826 int flags);
827 asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg,
828 unsigned vlen, unsigned int flags);
829 asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid,
830 const struct compat_iovec __user *lvec,
831 compat_ulong_t liovcnt, const struct compat_iovec __user *rvec,
832 compat_ulong_t riovcnt, compat_ulong_t flags);
833 asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid,
834 const struct compat_iovec __user *lvec,
835 compat_ulong_t liovcnt, const struct compat_iovec __user *rvec,
836 compat_ulong_t riovcnt, compat_ulong_t flags);
837 asmlinkage long compat_sys_execveat(int dfd, const char __user *filename,
838 const compat_uptr_t __user *argv,
839 const compat_uptr_t __user *envp, int flags);
840 asmlinkage ssize_t compat_sys_preadv2(compat_ulong_t fd,
841 const struct compat_iovec __user *vec,
842 compat_ulong_t vlen, u32 pos_low, u32 pos_high, rwf_t flags);
843 asmlinkage ssize_t compat_sys_pwritev2(compat_ulong_t fd,
844 const struct compat_iovec __user *vec,
845 compat_ulong_t vlen, u32 pos_low, u32 pos_high, rwf_t flags);
846 #ifdef __ARCH_WANT_COMPAT_SYS_PREADV64V2
847 asmlinkage long compat_sys_readv64v2(unsigned long fd,
848 const struct compat_iovec __user *vec,
849 unsigned long vlen, loff_t pos, rwf_t flags);
850 #endif
851
852 #ifdef __ARCH_WANT_COMPAT_SYS_PWRITEV64V2
853 asmlinkage long compat_sys_pwritev64v2(unsigned long fd,
854 const struct compat_iovec __user *vec,
855 unsigned long vlen, loff_t pos, rwf_t flags);
856 #endif
857
858
859
860
861
862
863
864
865 asmlinkage long compat_sys_open(const char __user *filename, int flags,
866 umode_t mode);
867
868
869 asmlinkage long compat_sys_signalfd(int ufd,
870 const compat_sigset_t __user *sigmask,
871 compat_size_t sigsetsize);
872
873
874 asmlinkage long compat_sys_newstat(const char __user *filename,
875 struct compat_stat __user *statbuf);
876 asmlinkage long compat_sys_newlstat(const char __user *filename,
877 struct compat_stat __user *statbuf);
878
879
880 asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
881 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
882 struct old_timeval32 __user *tvp);
883 asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
884 asmlinkage long compat_sys_recv(int fd, void __user *buf, compat_size_t len,
885 unsigned flags);
886 asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args);
887
888
889 asmlinkage long compat_sys_old_readdir(unsigned int fd,
890 struct compat_old_linux_dirent __user *,
891 unsigned int count);
892
893
894 asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg);
895
896
897 asmlinkage long compat_sys_ipc(u32, int, int, u32, compat_uptr_t, u32);
898
899
900 #ifdef __ARCH_WANT_SYS_SIGPENDING
901 asmlinkage long compat_sys_sigpending(compat_old_sigset_t __user *set);
902 #endif
903
904 #ifdef __ARCH_WANT_SYS_SIGPROCMASK
905 asmlinkage long compat_sys_sigprocmask(int how, compat_old_sigset_t __user *nset,
906 compat_old_sigset_t __user *oset);
907 #endif
908 #ifdef CONFIG_COMPAT_OLD_SIGACTION
909 asmlinkage long compat_sys_sigaction(int sig,
910 const struct compat_old_sigaction __user *act,
911 struct compat_old_sigaction __user *oact);
912 #endif
913
914
915 asmlinkage long compat_sys_socketcall(int call, u32 __user *args);
916
917 #endif
918
919
920
921
922
923
924
925
926 #ifndef in_compat_syscall
927 static inline bool in_compat_syscall(void) { return is_compat_task(); }
928 #endif
929
930
931
932
933
934
935
936 static inline struct old_timeval32 ns_to_old_timeval32(s64 nsec)
937 {
938 struct timeval tv;
939 struct old_timeval32 ctv;
940
941 tv = ns_to_timeval(nsec);
942 ctv.tv_sec = tv.tv_sec;
943 ctv.tv_usec = tv.tv_usec;
944
945 return ctv;
946 }
947
948
949
950
951
952
953
954 int kcompat_sys_statfs64(const char __user * pathname, compat_size_t sz,
955 struct compat_statfs64 __user * buf);
956 int kcompat_sys_fstatfs64(unsigned int fd, compat_size_t sz,
957 struct compat_statfs64 __user * buf);
958
959 #else
960
961 #define is_compat_task() (0)
962
963 #define in_compat_syscall in_compat_syscall
964 static inline bool in_compat_syscall(void) { return false; }
965
966 #endif
967
968 #endif