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 *, const struct compat_timespec __user *);
86 extern int put_compat_timespec(const struct timespec *, struct compat_timespec __user *);
89 compat_uptr_t iov_base;
90 compat_size_t iov_len;
93 struct compat_rlimit {
94 compat_ulong_t rlim_cur;
95 compat_ulong_t rlim_max;
98 struct compat_rusage {
99 struct compat_timeval ru_utime;
100 struct compat_timeval ru_stime;
101 compat_long_t ru_maxrss;
102 compat_long_t ru_ixrss;
103 compat_long_t ru_idrss;
104 compat_long_t ru_isrss;
105 compat_long_t ru_minflt;
106 compat_long_t ru_majflt;
107 compat_long_t ru_nswap;
108 compat_long_t ru_inblock;
109 compat_long_t ru_oublock;
110 compat_long_t ru_msgsnd;
111 compat_long_t ru_msgrcv;
112 compat_long_t ru_nsignals;
113 compat_long_t ru_nvcsw;
114 compat_long_t ru_nivcsw;
117 extern int put_compat_rusage(const struct rusage *, struct compat_rusage __user *);
119 struct compat_siginfo;
121 extern asmlinkage long compat_sys_waitid(int, compat_pid_t,
122 struct compat_siginfo __user *, int,
123 struct compat_rusage __user *);
125 struct compat_dirent {
132 struct compat_ustat {
133 compat_daddr_t f_tfree;
134 compat_ino_t f_tinode;
139 typedef union compat_sigval {
140 compat_int_t sival_int;
141 compat_uptr_t sival_ptr;
144 #define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
146 typedef struct compat_sigevent {
147 compat_sigval_t sigev_value;
148 compat_int_t sigev_signo;
149 compat_int_t sigev_notify;
151 compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE];
155 compat_uptr_t _function;
156 compat_uptr_t _attribute;
161 struct compat_ifmap {
162 compat_ulong_t mem_start;
163 compat_ulong_t mem_end;
164 unsigned short base_addr;
170 struct compat_if_settings
172 unsigned int type; /* Type of physical device or protocol */
173 unsigned int size; /* Size of the data allocated by the caller */
174 compat_uptr_t ifs_ifsu; /* union of pointers */
177 struct compat_ifreq {
179 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */
182 struct sockaddr ifru_addr;
183 struct sockaddr ifru_dstaddr;
184 struct sockaddr ifru_broadaddr;
185 struct sockaddr ifru_netmask;
186 struct sockaddr ifru_hwaddr;
188 compat_int_t ifru_ivalue;
189 compat_int_t ifru_mtu;
190 struct compat_ifmap ifru_map;
191 char ifru_slave[IFNAMSIZ]; /* Just fits the size */
192 char ifru_newname[IFNAMSIZ];
193 compat_caddr_t ifru_data;
194 struct compat_if_settings ifru_settings;
198 struct compat_ifconf {
199 compat_int_t ifc_len; /* size of buffer */
200 compat_caddr_t ifcbuf;
203 struct compat_robust_list {
207 struct compat_robust_list_head {
208 struct compat_robust_list list;
209 compat_long_t futex_offset;
210 compat_uptr_t list_op_pending;
213 struct compat_statfs;
214 struct compat_statfs64;
215 struct compat_old_linux_dirent;
216 struct compat_linux_dirent;
217 struct linux_dirent64;
218 struct compat_msghdr;
219 struct compat_mmsghdr;
220 struct compat_sysinfo;
221 struct compat_sysctl_args;
222 struct compat_kexec_segment;
223 struct compat_mq_attr;
225 extern void compat_exit_robust_list(struct task_struct *curr);
228 compat_sys_set_robust_list(struct compat_robust_list_head __user *head,
231 compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr,
232 compat_size_t __user *len_ptr);
234 long compat_sys_semctl(int first, int second, int third, void __user *uptr);
235 long compat_sys_msgsnd(int first, int second, int third, void __user *uptr);
236 long compat_sys_msgrcv(int first, int second, int msgtyp, int third,
237 int version, void __user *uptr);
238 long compat_sys_msgctl(int first, int second, void __user *uptr);
239 long compat_sys_shmat(int first, int second, compat_uptr_t third, int version,
241 long compat_sys_shmctl(int first, int second, void __user *uptr);
242 long compat_sys_semtimedop(int semid, struct sembuf __user *tsems,
243 unsigned nsems, const struct compat_timespec __user *timeout);
244 asmlinkage long compat_sys_keyctl(u32 option,
245 u32 arg2, u32 arg3, u32 arg4, u32 arg5);
246 asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32);
248 asmlinkage ssize_t compat_sys_readv(unsigned long fd,
249 const struct compat_iovec __user *vec, unsigned long vlen);
250 asmlinkage ssize_t compat_sys_writev(unsigned long fd,
251 const struct compat_iovec __user *vec, unsigned long vlen);
252 asmlinkage ssize_t compat_sys_preadv(unsigned long fd,
253 const struct compat_iovec __user *vec,
254 unsigned long vlen, u32 pos_low, u32 pos_high);
255 asmlinkage ssize_t compat_sys_pwritev(unsigned long fd,
256 const struct compat_iovec __user *vec,
257 unsigned long vlen, u32 pos_low, u32 pos_high);
259 int compat_do_execve(char * filename, compat_uptr_t __user *argv,
260 compat_uptr_t __user *envp, struct pt_regs * regs);
262 asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp,
263 compat_ulong_t __user *outp, compat_ulong_t __user *exp,
264 struct compat_timeval __user *tvp);
266 asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg);
268 asmlinkage long compat_sys_wait4(compat_pid_t pid,
269 compat_uint_t __user *stat_addr, int options,
270 struct compat_rusage __user *ru);
272 #define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t))
274 #define BITS_TO_COMPAT_LONGS(bits) \
275 (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)
277 long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
278 unsigned long bitmap_size);
279 long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
280 unsigned long bitmap_size);
281 int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
282 int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from);
283 int get_compat_sigevent(struct sigevent *event,
284 const struct compat_sigevent __user *u_event);
285 long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,
286 struct compat_siginfo __user *uinfo);
288 static inline int compat_timeval_compare(struct compat_timeval *lhs,
289 struct compat_timeval *rhs)
291 if (lhs->tv_sec < rhs->tv_sec)
293 if (lhs->tv_sec > rhs->tv_sec)
295 return lhs->tv_usec - rhs->tv_usec;
298 static inline int compat_timespec_compare(struct compat_timespec *lhs,
299 struct compat_timespec *rhs)
301 if (lhs->tv_sec < rhs->tv_sec)
303 if (lhs->tv_sec > rhs->tv_sec)
305 return lhs->tv_nsec - rhs->tv_nsec;
308 extern int get_compat_itimerspec(struct itimerspec *dst,
309 const struct compat_itimerspec __user *src);
310 extern int put_compat_itimerspec(struct compat_itimerspec __user *dst,
311 const struct itimerspec *src);
313 asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv,
314 struct timezone __user *tz);
315 asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv,
316 struct timezone __user *tz);
318 asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp);
320 extern int compat_printk(const char *fmt, ...);
321 extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
323 asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
324 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
325 const compat_ulong_t __user *new_nodes);
327 extern int compat_ptrace_request(struct task_struct *child,
328 compat_long_t request,
329 compat_ulong_t addr, compat_ulong_t data);
331 extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
332 compat_ulong_t addr, compat_ulong_t data);
333 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
334 compat_long_t addr, compat_long_t data);
337 * epoll (fs/eventpoll.c) compat bits follow ...
340 #define compat_epoll_event epoll_event
341 asmlinkage long compat_sys_epoll_pwait(int epfd,
342 struct compat_epoll_event __user *events,
343 int maxevents, int timeout,
344 const compat_sigset_t __user *sigmask,
345 compat_size_t sigsetsize);
347 asmlinkage long compat_sys_utime(const char __user *filename,
348 struct compat_utimbuf __user *t);
349 asmlinkage long compat_sys_utimensat(unsigned int dfd, const char __user *filename,
350 struct compat_timespec __user *t, int flags);
352 asmlinkage long compat_sys_time(compat_time_t __user *tloc);
353 asmlinkage long compat_sys_stime(compat_time_t __user *tptr);
354 asmlinkage long compat_sys_signalfd(int ufd,
355 const compat_sigset_t __user *sigmask,
356 compat_size_t sigsetsize);
357 asmlinkage long compat_sys_timerfd_settime(int ufd, int flags,
358 const struct compat_itimerspec __user *utmr,
359 struct compat_itimerspec __user *otmr);
360 asmlinkage long compat_sys_timerfd_gettime(int ufd,
361 struct compat_itimerspec __user *otmr);
363 asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_page,
365 const int __user *nodes,
368 asmlinkage long compat_sys_futimesat(unsigned int dfd, const char __user *filename,
369 struct compat_timeval __user *t);
370 asmlinkage long compat_sys_utimes(const char __user *filename,
371 struct compat_timeval __user *t);
372 asmlinkage long compat_sys_newstat(const char __user * filename,
373 struct compat_stat __user *statbuf);
374 asmlinkage long compat_sys_newlstat(const char __user * filename,
375 struct compat_stat __user *statbuf);
376 asmlinkage long compat_sys_newfstatat(unsigned int dfd, const char __user * filename,
377 struct compat_stat __user *statbuf,
379 asmlinkage long compat_sys_newfstat(unsigned int fd,
380 struct compat_stat __user * statbuf);
381 asmlinkage long compat_sys_statfs(const char __user *pathname,
382 struct compat_statfs __user *buf);
383 asmlinkage long compat_sys_fstatfs(unsigned int fd,
384 struct compat_statfs __user *buf);
385 asmlinkage long compat_sys_statfs64(const char __user *pathname,
387 struct compat_statfs64 __user *buf);
388 asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz,
389 struct compat_statfs64 __user *buf);
390 asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd,
392 asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd,
394 asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p);
395 asmlinkage long compat_sys_io_getevents(aio_context_t ctx_id,
396 unsigned long min_nr,
398 struct io_event __user *events,
399 struct compat_timespec __user *timeout);
400 asmlinkage long compat_sys_io_submit(aio_context_t ctx_id, int nr,
402 asmlinkage long compat_sys_mount(const char __user * dev_name,
403 const char __user * dir_name,
404 const char __user * type, unsigned long flags,
405 const void __user * data);
406 asmlinkage long compat_sys_old_readdir(unsigned int fd,
407 struct compat_old_linux_dirent __user *,
409 asmlinkage long compat_sys_getdents(unsigned int fd,
410 struct compat_linux_dirent __user *dirent,
412 asmlinkage long compat_sys_getdents64(unsigned int fd,
413 struct linux_dirent64 __user * dirent,
415 asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *,
416 unsigned int nr_segs, unsigned int flags);
417 asmlinkage long compat_sys_open(const char __user *filename, int flags,
419 asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename,
420 int flags, int mode);
421 asmlinkage long compat_sys_open_by_handle_at(int mountdirfd,
422 struct file_handle __user *handle,
424 asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp,
425 compat_ulong_t __user *outp,
426 compat_ulong_t __user *exp,
427 struct compat_timespec __user *tsp,
429 asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,
431 struct compat_timespec __user *tsp,
432 const compat_sigset_t __user *sigmask,
433 compat_size_t sigsetsize);
434 #if (defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE)) && !defined(CONFIG_NFSD_DEPRECATED)
435 union compat_nfsctl_res;
436 struct compat_nfsctl_arg;
437 asmlinkage long compat_sys_nfsservctl(int cmd,
438 struct compat_nfsctl_arg __user *arg,
439 union compat_nfsctl_res __user *res);
441 long asmlinkage compat_sys_nfsservctl(int cmd, void *notused, void *notused2);
443 asmlinkage long compat_sys_signalfd4(int ufd,
444 const compat_sigset_t __user *sigmask,
445 compat_size_t sigsetsize, int flags);
446 asmlinkage long compat_sys_get_mempolicy(int __user *policy,
447 compat_ulong_t __user *nmask,
448 compat_ulong_t maxnode,
450 compat_ulong_t flags);
451 asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,
452 compat_ulong_t maxnode);
453 asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,
455 compat_ulong_t __user *nmask,
456 compat_ulong_t maxnode, compat_ulong_t flags);
458 asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
459 char __user *optval, unsigned int optlen);
460 asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg,
462 asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg,
464 asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len,
466 asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len,
467 unsigned flags, struct sockaddr __user *addr,
468 int __user *addrlen);
469 asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg,
470 unsigned vlen, unsigned int flags,
471 struct compat_timespec __user *timeout);
472 asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp,
473 struct compat_timespec __user *rmtp);
474 asmlinkage long compat_sys_getitimer(int which,
475 struct compat_itimerval __user *it);
476 asmlinkage long compat_sys_setitimer(int which,
477 struct compat_itimerval __user *in,
478 struct compat_itimerval __user *out);
479 asmlinkage long compat_sys_times(struct compat_tms __user *tbuf);
480 asmlinkage long compat_sys_setrlimit(unsigned int resource,
481 struct compat_rlimit __user *rlim);
482 asmlinkage long compat_sys_getrlimit (unsigned int resource,
483 struct compat_rlimit __user *rlim);
484 asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru);
485 asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid,
487 compat_ulong_t __user *user_mask_ptr);
488 asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid,
490 compat_ulong_t __user *user_mask_ptr);
491 asmlinkage long compat_sys_timer_create(clockid_t which_clock,
492 struct compat_sigevent __user *timer_event_spec,
493 timer_t __user *created_timer_id);
494 asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags,
495 struct compat_itimerspec __user *new,
496 struct compat_itimerspec __user *old);
497 asmlinkage long compat_sys_timer_gettime(timer_t timer_id,
498 struct compat_itimerspec __user *setting);
499 asmlinkage long compat_sys_clock_settime(clockid_t which_clock,
500 struct compat_timespec __user *tp);
501 asmlinkage long compat_sys_clock_gettime(clockid_t which_clock,
502 struct compat_timespec __user *tp);
503 asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock,
504 struct compat_timex __user *tp);
505 asmlinkage long compat_sys_clock_getres(clockid_t which_clock,
506 struct compat_timespec __user *tp);
507 asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags,
508 struct compat_timespec __user *rqtp,
509 struct compat_timespec __user *rmtp);
510 asmlinkage long compat_sys_rt_sigtimedwait (compat_sigset_t __user *uthese,
511 struct compat_siginfo __user *uinfo,
512 struct compat_timespec __user *uts, compat_size_t sigsetsize);
513 asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset,
514 compat_size_t sigsetsize);
515 asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info);
516 asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
518 asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val,
519 struct compat_timespec __user *utime, u32 __user *uaddr2,
521 asmlinkage long compat_sys_getsockopt(int fd, int level, int optname,
522 char __user *optval, int __user *optlen);
523 asmlinkage long compat_sys_kexec_load(unsigned long entry,
524 unsigned long nr_segments,
525 struct compat_kexec_segment __user *,
526 unsigned long flags);
527 asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes,
528 const struct compat_mq_attr __user *u_mqstat,
529 struct compat_mq_attr __user *u_omqstat);
530 asmlinkage long compat_sys_mq_notify(mqd_t mqdes,
531 const struct compat_sigevent __user *u_notification);
532 asmlinkage long compat_sys_mq_open(const char __user *u_name,
533 int oflag, compat_mode_t mode,
534 struct compat_mq_attr __user *u_attr);
535 asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes,
536 const char __user *u_msg_ptr,
537 size_t msg_len, unsigned int msg_prio,
538 const struct compat_timespec __user *u_abs_timeout);
539 asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes,
540 char __user *u_msg_ptr,
541 size_t msg_len, unsigned int __user *u_msg_prio,
542 const struct compat_timespec __user *u_abs_timeout);
543 asmlinkage long compat_sys_socketcall(int call, u32 __user *args);
544 asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args);
546 extern ssize_t compat_rw_copy_check_uvector(int type,
547 const struct compat_iovec __user *uvector, unsigned long nr_segs,
548 unsigned long fast_segs, struct iovec *fast_pointer,
549 struct iovec **ret_pointer);
551 extern void __user *compat_alloc_user_space(unsigned long len);
553 #endif /* CONFIG_COMPAT */
554 #endif /* _LINUX_COMPAT_H */