1 #ifndef _LINUX_COMPAT_H
2 #define _LINUX_COMPAT_H
4 * These are the type definitions for the architecture specific
5 * syscall compatibility layer.
10 #include <linux/stat.h>
11 #include <linux/param.h> /* for HZ */
12 #include <linux/sem.h>
13 #include <linux/socket.h>
17 #include <asm/compat.h>
18 #include <asm/siginfo.h>
19 #include <asm/signal.h>
21 #define compat_jiffies_to_clock_t(x) \
22 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
24 typedef __compat_uid32_t compat_uid_t;
25 typedef __compat_gid32_t compat_gid_t;
27 struct compat_sel_arg_struct;
30 struct compat_itimerspec {
31 struct compat_timespec it_interval;
32 struct compat_timespec it_value;
35 struct compat_utimbuf {
37 compat_time_t modtime;
40 struct compat_itimerval {
41 struct compat_timeval it_interval;
42 struct compat_timeval it_value;
46 compat_clock_t tms_utime;
47 compat_clock_t tms_stime;
48 compat_clock_t tms_cutime;
49 compat_clock_t tms_cstime;
56 compat_long_t maxerror;
57 compat_long_t esterror;
59 compat_long_t constant;
60 compat_long_t precision;
61 compat_long_t tolerance;
62 struct compat_timeval time;
64 compat_long_t ppsfreq;
74 compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
75 compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32;
76 compat_int_t:32; compat_int_t:32; compat_int_t:32;
79 #define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
82 compat_sigset_word sig[_COMPAT_NSIG_WORDS];
85 extern int get_compat_timespec(struct timespec *,
86 const struct compat_timespec __user *);
87 extern int put_compat_timespec(const struct timespec *,
88 struct compat_timespec __user *);
91 compat_uptr_t iov_base;
92 compat_size_t iov_len;
95 struct compat_rlimit {
96 compat_ulong_t rlim_cur;
97 compat_ulong_t rlim_max;
100 struct compat_rusage {
101 struct compat_timeval ru_utime;
102 struct compat_timeval ru_stime;
103 compat_long_t ru_maxrss;
104 compat_long_t ru_ixrss;
105 compat_long_t ru_idrss;
106 compat_long_t ru_isrss;
107 compat_long_t ru_minflt;
108 compat_long_t ru_majflt;
109 compat_long_t ru_nswap;
110 compat_long_t ru_inblock;
111 compat_long_t ru_oublock;
112 compat_long_t ru_msgsnd;
113 compat_long_t ru_msgrcv;
114 compat_long_t ru_nsignals;
115 compat_long_t ru_nvcsw;
116 compat_long_t ru_nivcsw;
119 extern int put_compat_rusage(const struct rusage *,
120 struct compat_rusage __user *);
122 struct compat_siginfo;
124 extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
125 struct compat_siginfo __user *, int,
126 struct compat_rusage __user *);
128 struct compat_dirent {
135 struct compat_ustat {
136 compat_daddr_t f_tfree;
137 compat_ino_t f_tinode;
142 typedef union compat_sigval {
143 compat_int_t sival_int;
144 compat_uptr_t sival_ptr;
147 #define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
149 typedef struct compat_sigevent {
150 compat_sigval_t sigev_value;
151 compat_int_t sigev_signo;
152 compat_int_t sigev_notify;
154 compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
158 compat_uptr_t _function;
159 compat_uptr_t _attribute;
164 struct compat_ifmap {
165 compat_ulong_t mem_start;
166 compat_ulong_t mem_end;
167 unsigned short base_addr;
173 struct compat_if_settings {
174 unsigned int type; /* Type of physical device or protocol */
175 unsigned int size; /* Size of the data allocated by the caller */
176 compat_uptr_t ifs_ifsu; /* union of pointers */
179 struct compat_ifreq {
181 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */
184 struct sockaddr ifru_addr;
185 struct sockaddr ifru_dstaddr;
186 struct sockaddr ifru_broadaddr;
187 struct sockaddr ifru_netmask;
188 struct sockaddr ifru_hwaddr;
190 compat_int_t ifru_ivalue;
191 compat_int_t ifru_mtu;
192 struct compat_ifmap ifru_map;
193 char ifru_slave[IFNAMSIZ]; /* Just fits the size */
194 char ifru_newname[IFNAMSIZ];
195 compat_caddr_t ifru_data;
196 struct compat_if_settings ifru_settings;
200 struct compat_ifconf {
201 compat_int_t ifc_len; /* size of buffer */
202 compat_caddr_t ifcbuf;
205 struct compat_robust_list {
209 struct compat_robust_list_head {
210 struct compat_robust_list list;
211 compat_long_t futex_offset;
212 compat_uptr_t list_op_pending;
215 struct compat_statfs;
216 struct compat_statfs64;
217 struct compat_old_linux_dirent;
218 struct compat_linux_dirent;
219 struct linux_dirent64;
220 struct compat_msghdr;
221 struct compat_mmsghdr;
222 struct compat_sysinfo;
223 struct compat_sysctl_args;
224 struct compat_kexec_segment;
225 struct compat_mq_attr;
227 extern void compat_exit_robust_list(struct task_struct *curr);
230 compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
233 compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
234 compat_size_t __user *len_ptr);
236 long compat_sys_semctl(int first, int second, int third, void __user *uptr);
237 long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);
238 long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
239 int version, void __user *uptr);
240 long compat_sys_msgctl(int first, int second, void __user *uptr);
241 long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,
243 long compat_sys_shmctl(int first, int second, void __user *uptr);
244 long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
245 unsigned nsems, const struct compat_timespec __user *timeout);
246 asmlinkage long compat_sys_keyctl(u32 option,
247 u32 arg2, u32 arg3, u32 arg4, u32 arg5);
248 asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
250 asmlinkage ssize_t compat_sys_readv(unsigned long fd,
251 const struct compat_iovec __user *vec, unsigned long vlen);
252 asmlinkage ssize_t compat_sys_writev(unsigned long fd,
253 const struct compat_iovec __user *vec, unsigned long vlen);
254 asmlinkage ssize_t compat_sys_preadv(unsigned long fd,
255 const struct compat_iovec __user *vec,
256 unsigned long vlen, u32 pos_low, u32 pos_high);
257 asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,
258 const struct compat_iovec __user *vec,
259 unsigned long vlen, u32 pos_low, u32 pos_high);
261 int compat_do_execve(char *filename, compat_uptr_t __user *argv,
262 compat_uptr_t __user *envp, struct pt_regs *regs);
264 asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
265 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
266 struct compat_timeval __user *tvp);
268 asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg);
270 asmlinkage long compat_sys_wait4(compat_pid_t pid,
271 compat_uint_t __user *stat_addr, int options,
272 struct compat_rusage __user *ru);
274 #define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t))
276 #define BITS_TO_COMPAT_LONGS(bits) \
277 (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)
279 long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
280 unsigned long bitmap_size);
281 long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
282 unsigned long bitmap_size);
283 int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
284 int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from);
285 int get_compat_sigevent(struct sigevent *event,
286 const struct compat_sigevent __user *u_event);
287 long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,
288 struct compat_siginfo __user *uinfo);
290 static inline int compat_timeval_compare(struct compat_timeval *lhs,
291 struct compat_timeval *rhs)
293 if (lhs->tv_sec < rhs->tv_sec)
295 if (lhs->tv_sec > rhs->tv_sec)
297 return lhs->tv_usec - rhs->tv_usec;
300 static inline int compat_timespec_compare(struct compat_timespec *lhs,
301 struct compat_timespec *rhs)
303 if (lhs->tv_sec < rhs->tv_sec)
305 if (lhs->tv_sec > rhs->tv_sec)
307 return lhs->tv_nsec - rhs->tv_nsec;
310 extern int get_compat_itimerspec(struct itimerspec *dst,
311 const struct compat_itimerspec __user *src);
312 extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,
313 const struct itimerspec *src);
315 asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
316 struct timezone __user *tz);
317 asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
318 struct timezone __user *tz);
320 asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
322 extern int compat_printk(const char *fmt, ...);
323 extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
325 asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
326 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
327 const compat_ulong_t __user *new_nodes);
329 extern int compat_ptrace_request(struct task_struct *child,
330 compat_long_t request,
331 compat_ulong_t addr, compat_ulong_t data);
333 extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
334 compat_ulong_t addr, compat_ulong_t data);
335 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
336 compat_long_t addr, compat_long_t data);
339 * epoll (fs/eventpoll.c) compat bits follow ...
342 #define compat_epoll_event epoll_event
343 asmlinkage long compat_sys_epoll_pwait(int epfd,
344 struct compat_epoll_event __user *events,
345 int maxevents, int timeout,
346 const compat_sigset_t __user *sigmask,
347 compat_size_t sigsetsize);
349 asmlinkage long compat_sys_utime(const char __user *filename,
350 struct compat_utimbuf __user *t);
351 asmlinkage long compat_sys_utimensat(unsigned int dfd,
352 const char __user *filename,
353 struct compat_timespec __user *t,
356 asmlinkage long compat_sys_time(compat_time_t __user *tloc);
357 asmlinkage long compat_sys_stime(compat_time_t __user *tptr);
358 asmlinkage long compat_sys_signalfd(int ufd,
359 const compat_sigset_t __user *sigmask,
360 compat_size_t sigsetsize);
361 asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
362 const struct compat_itimerspec __user *utmr,
363 struct compat_itimerspec __user *otmr);
364 asmlinkage long compat_sys_timerfd_gettime(int ufd,
365 struct compat_itimerspec __user *otmr);
367 asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_page,
369 const int __user *nodes,
372 asmlinkage long compat_sys_futimesat(unsigned int dfd,
373 const char __user *filename,
374 struct compat_timeval __user *t);
375 asmlinkage long compat_sys_utimes(const char __user *filename,
376 struct compat_timeval __user *t);
377 asmlinkage long compat_sys_newstat(const char __user *filename,
378 struct compat_stat __user *statbuf);
379 asmlinkage long compat_sys_newlstat(const char __user *filename,
380 struct compat_stat __user *statbuf);
381 asmlinkage long compat_sys_newfstatat(unsigned int dfd,
382 const char __user *filename,
383 struct compat_stat __user *statbuf,
385 asmlinkage long compat_sys_newfstat(unsigned int fd,
386 struct compat_stat __user *statbuf);
387 asmlinkage long compat_sys_statfs(const char __user *pathname,
388 struct compat_statfs __user *buf);
389 asmlinkage long compat_sys_fstatfs(unsigned int fd,
390 struct compat_statfs __user *buf);
391 asmlinkage long compat_sys_statfs64(const char __user *pathname,
393 struct compat_statfs64 __user *buf);
394 asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz,
395 struct compat_statfs64 __user *buf);
396 asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd,
398 asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd,
400 asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p);
401 asmlinkage long compat_sys_io_getevents(aio_context_t ctx_id,
402 unsigned long min_nr,
404 struct io_event __user *events,
405 struct compat_timespec __user *timeout);
406 asmlinkage long compat_sys_io_submit(aio_context_t ctx_id, int nr,
408 asmlinkage long compat_sys_mount(const char __user *dev_name,
409 const char __user *dir_name,
410 const char __user *type, unsigned long flags,
411 const void __user *data);
412 asmlinkage long compat_sys_old_readdir(unsigned int fd,
413 struct compat_old_linux_dirent __user *,
415 asmlinkage long compat_sys_getdents(unsigned int fd,
416 struct compat_linux_dirent __user *dirent,
418 asmlinkage long compat_sys_getdents64(unsigned int fd,
419 struct linux_dirent64 __user *dirent,
421 asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *,
422 unsigned int nr_segs, unsigned int flags);
423 asmlinkage long compat_sys_open(const char __user *filename, int flags,
425 asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename,
426 int flags, int mode);
427 asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,
428 struct file_handle __user *handle,
430 asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp,
431 compat_ulong_t __user *outp,
432 compat_ulong_t __user *exp,
433 struct compat_timespec __user *tsp,
435 asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,
437 struct compat_timespec __user *tsp,
438 const compat_sigset_t __user *sigmask,
439 compat_size_t sigsetsize);
440 #if (defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE)) && \
441 !defined(CONFIG_NFSD_DEPRECATED)
442 union compat_nfsctl_res;
443 struct compat_nfsctl_arg;
444 asmlinkage long compat_sys_nfsservctl(int cmd,
445 struct compat_nfsctl_arg __user *arg,
446 union compat_nfsctl_res __user *res);
448 asmlinkage long compat_sys_nfsservctl(int cmd, void *notused, void *notused2);
450 asmlinkage long compat_sys_signalfd4(int ufd,
451 const compat_sigset_t __user *sigmask,
452 compat_size_t sigsetsize, int flags);
453 asmlinkage long compat_sys_get_mempolicy(int __user *policy,
454 compat_ulong_t __user *nmask,
455 compat_ulong_t maxnode,
457 compat_ulong_t flags);
458 asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,
459 compat_ulong_t maxnode);
460 asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,
462 compat_ulong_t __user *nmask,
463 compat_ulong_t maxnode, compat_ulong_t flags);
465 asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
466 char __user *optval, unsigned int optlen);
467 asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg,
469 asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg,
471 asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len,
473 asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len,
474 unsigned flags, struct sockaddr __user *addr,
475 int __user *addrlen);
476 asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
477 unsigned vlen, unsigned int flags,
478 struct compat_timespec __user *timeout);
479 asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
480 struct compat_timespec __user *rmtp);
481 asmlinkage long compat_sys_getitimer(int which,
482 struct compat_itimerval __user *it);
483 asmlinkage long compat_sys_setitimer(int which,
484 struct compat_itimerval __user *in,
485 struct compat_itimerval __user *out);
486 asmlinkage long compat_sys_times(struct compat_tms __user *tbuf);
487 asmlinkage long compat_sys_setrlimit(unsigned int resource,
488 struct compat_rlimit __user *rlim);
489 asmlinkage long compat_sys_getrlimit(unsigned int resource,
490 struct compat_rlimit __user *rlim);
491 asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru);
492 asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid,
494 compat_ulong_t __user *user_mask_ptr);
495 asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid,
497 compat_ulong_t __user *user_mask_ptr);
498 asmlinkage long compat_sys_timer_create(clockid_t which_clock,
499 struct compat_sigevent __user *timer_event_spec,
500 timer_t __user *created_timer_id);
501 asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags,
502 struct compat_itimerspec __user *new,
503 struct compat_itimerspec __user *old);
504 asmlinkage long compat_sys_timer_gettime(timer_t timer_id,
505 struct compat_itimerspec __user *setting);
506 asmlinkage long compat_sys_clock_settime(clockid_t which_clock,
507 struct compat_timespec __user *tp);
508 asmlinkage long compat_sys_clock_gettime(clockid_t which_clock,
509 struct compat_timespec __user *tp);
510 asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock,
511 struct compat_timex __user *tp);
512 asmlinkage long compat_sys_clock_getres(clockid_t which_clock,
513 struct compat_timespec __user *tp);
514 asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
515 struct compat_timespec __user *rqtp,
516 struct compat_timespec __user *rmtp);
517 asmlinkage long compat_sys_rt_sigtimedwait(compat_sigset_t __user *uthese,
518 struct compat_siginfo __user *uinfo,
519 struct compat_timespec __user *uts, compat_size_t sigsetsize);
520 asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset,
521 compat_size_t sigsetsize);
522 asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info);
523 asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
525 asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val,
526 struct compat_timespec __user *utime, u32 __user *uaddr2,
528 asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
529 char __user *optval, int __user *optlen);
530 asmlinkage long compat_sys_kexec_load(unsigned long entry,
531 unsigned long nr_segments,
532 struct compat_kexec_segment __user *,
533 unsigned long flags);
534 asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes,
535 const struct compat_mq_attr __user *u_mqstat,
536 struct compat_mq_attr __user *u_omqstat);
537 asmlinkage long compat_sys_mq_notify(mqd_t mqdes,
538 const struct compat_sigevent __user *u_notification);
539 asmlinkage long compat_sys_mq_open(const char __user *u_name,
540 int oflag, compat_mode_t mode,
541 struct compat_mq_attr __user *u_attr);
542 asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes,
543 const char __user *u_msg_ptr,
544 size_t msg_len, unsigned int msg_prio,
545 const struct compat_timespec __user *u_abs_timeout);
546 asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes,
547 char __user *u_msg_ptr,
548 size_t msg_len, unsigned int __user *u_msg_prio,
549 const struct compat_timespec __user *u_abs_timeout);
550 asmlinkage long compat_sys_socketcall(int call, u32 __user *args);
551 asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args);
553 extern ssize_t compat_rw_copy_check_uvector(int type,
554 const struct compat_iovec __user *uvector,
555 unsigned long nr_segs,
556 unsigned long fast_segs, struct iovec *fast_pointer,
557 struct iovec **ret_pointer);
559 extern void __user *compat_alloc_user_space(unsigned long len);
561 #endif /* CONFIG_COMPAT */
562 #endif /* _LINUX_COMPAT_H */