compat.h revision 2a1486981c1317dc4f4aad568f2cc6e49dfb8c82
1#ifndef _LINUX_COMPAT_H 2#define _LINUX_COMPAT_H 3/* 4 * These are the type definitions for the architecture specific 5 * syscall compatibility layer. 6 */ 7 8#ifdef CONFIG_COMPAT 9 10#include <linux/stat.h> 11#include <linux/param.h> /* for HZ */ 12#include <linux/sem.h> 13#include <linux/socket.h> 14#include <linux/if.h> 15#include <linux/fs.h> 16#include <linux/aio_abi.h> /* for aio_context_t */ 17 18#include <asm/compat.h> 19#include <asm/siginfo.h> 20#include <asm/signal.h> 21 22#ifndef COMPAT_USE_64BIT_TIME 23#define COMPAT_USE_64BIT_TIME 0 24#endif 25 26#ifndef __SC_DELOUSE 27#define __SC_DELOUSE(t,v) ((t)(unsigned long)(v)) 28#endif 29 30#define __SC_CCAST1(t1, a1) __SC_DELOUSE(t1,a1) 31#define __SC_CCAST2(t2, a2, ...) __SC_DELOUSE(t2,a2), __SC_CCAST1(__VA_ARGS__) 32#define __SC_CCAST3(t3, a3, ...) __SC_DELOUSE(t3,a3), __SC_CCAST2(__VA_ARGS__) 33#define __SC_CCAST4(t4, a4, ...) __SC_DELOUSE(t4,a4), __SC_CCAST3(__VA_ARGS__) 34#define __SC_CCAST5(t5, a5, ...) __SC_DELOUSE(t5,a5), __SC_CCAST4(__VA_ARGS__) 35#define __SC_CCAST6(t6, a6, ...) __SC_DELOUSE(t6,a6), __SC_CCAST5(__VA_ARGS__) 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__) 48 49#ifdef CONFIG_HAVE_SYSCALL_WRAPPERS 50 51#define COMPAT_SYSCALL_DEFINEx(x, name, ...) \ 52 asmlinkage long compat_sys##name(__SC_DECL##x(__VA_ARGS__)); \ 53 static inline long C_SYSC##name(__SC_DECL##x(__VA_ARGS__)); \ 54 asmlinkage long compat_SyS##name(__SC_LONG##x(__VA_ARGS__)) \ 55 { \ 56 return (long) C_SYSC##name(__SC_CCAST##x(__VA_ARGS__)); \ 57 } \ 58 SYSCALL_ALIAS(compat_sys##name, compat_SyS##name); \ 59 static inline long C_SYSC##name(__SC_DECL##x(__VA_ARGS__)) 60 61#else /* CONFIG_HAVE_SYSCALL_WRAPPERS */ 62 63#define COMPAT_SYSCALL_DEFINEx(x, name, ...) \ 64 asmlinkage long compat_sys##name(__SC_DECL##x(__VA_ARGS__)) 65 66#endif /* CONFIG_HAVE_SYSCALL_WRAPPERS */ 67 68#ifndef compat_user_stack_pointer 69#define compat_user_stack_pointer() current_user_stack_pointer() 70#endif 71#ifndef compat_sigaltstack /* we'll need that for MIPS */ 72typedef struct compat_sigaltstack { 73 compat_uptr_t ss_sp; 74 int ss_flags; 75 compat_size_t ss_size; 76} compat_stack_t; 77#endif 78 79#define compat_jiffies_to_clock_t(x) \ 80 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ) 81 82typedef __compat_uid32_t compat_uid_t; 83typedef __compat_gid32_t compat_gid_t; 84 85struct compat_sel_arg_struct; 86struct rusage; 87 88struct compat_itimerspec { 89 struct compat_timespec it_interval; 90 struct compat_timespec it_value; 91}; 92 93struct compat_utimbuf { 94 compat_time_t actime; 95 compat_time_t modtime; 96}; 97 98struct compat_itimerval { 99 struct compat_timeval it_interval; 100 struct compat_timeval it_value; 101}; 102 103struct compat_tms { 104 compat_clock_t tms_utime; 105 compat_clock_t tms_stime; 106 compat_clock_t tms_cutime; 107 compat_clock_t tms_cstime; 108}; 109 110struct compat_timex { 111 compat_uint_t modes; 112 compat_long_t offset; 113 compat_long_t freq; 114 compat_long_t maxerror; 115 compat_long_t esterror; 116 compat_int_t status; 117 compat_long_t constant; 118 compat_long_t precision; 119 compat_long_t tolerance; 120 struct compat_timeval time; 121 compat_long_t tick; 122 compat_long_t ppsfreq; 123 compat_long_t jitter; 124 compat_int_t shift; 125 compat_long_t stabil; 126 compat_long_t jitcnt; 127 compat_long_t calcnt; 128 compat_long_t errcnt; 129 compat_long_t stbcnt; 130 compat_int_t tai; 131 132 compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32; 133 compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32; 134 compat_int_t:32; compat_int_t:32; compat_int_t:32; 135}; 136 137#define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW) 138 139typedef struct { 140 compat_sigset_word sig[_COMPAT_NSIG_WORDS]; 141} compat_sigset_t; 142 143struct compat_sigaction { 144#ifndef __ARCH_HAS_IRIX_SIGACTION 145 compat_uptr_t sa_handler; 146 compat_ulong_t sa_flags; 147#else 148 compat_uint_t sa_flags; 149 compat_uptr_t sa_handler; 150#endif 151#ifdef __ARCH_HAS_SA_RESTORER 152 compat_uptr_t sa_restorer; 153#endif 154 compat_sigset_t sa_mask __packed; 155}; 156 157/* 158 * These functions operate strictly on struct compat_time* 159 */ 160extern int get_compat_timespec(struct timespec *, 161 const struct compat_timespec __user *); 162extern int put_compat_timespec(const struct timespec *, 163 struct compat_timespec __user *); 164extern int get_compat_timeval(struct timeval *, 165 const struct compat_timeval __user *); 166extern int put_compat_timeval(const struct timeval *, 167 struct compat_timeval __user *); 168/* 169 * These functions operate on 32- or 64-bit specs depending on 170 * COMPAT_USE_64BIT_TIME, hence the void user pointer arguments and the 171 * naming as compat_get/put_ rather than get/put_compat_. 172 */ 173extern int compat_get_timespec(struct timespec *, const void __user *); 174extern int compat_put_timespec(const struct timespec *, void __user *); 175extern int compat_get_timeval(struct timeval *, const void __user *); 176extern int compat_put_timeval(const struct timeval *, void __user *); 177 178struct compat_iovec { 179 compat_uptr_t iov_base; 180 compat_size_t iov_len; 181}; 182 183struct compat_rlimit { 184 compat_ulong_t rlim_cur; 185 compat_ulong_t rlim_max; 186}; 187 188struct compat_rusage { 189 struct compat_timeval ru_utime; 190 struct compat_timeval ru_stime; 191 compat_long_t ru_maxrss; 192 compat_long_t ru_ixrss; 193 compat_long_t ru_idrss; 194 compat_long_t ru_isrss; 195 compat_long_t ru_minflt; 196 compat_long_t ru_majflt; 197 compat_long_t ru_nswap; 198 compat_long_t ru_inblock; 199 compat_long_t ru_oublock; 200 compat_long_t ru_msgsnd; 201 compat_long_t ru_msgrcv; 202 compat_long_t ru_nsignals; 203 compat_long_t ru_nvcsw; 204 compat_long_t ru_nivcsw; 205}; 206 207extern int put_compat_rusage(const struct rusage *, 208 struct compat_rusage __user *); 209 210struct compat_siginfo; 211 212extern asmlinkage long compat_sys_waitid(int, compat_pid_t, 213 struct compat_siginfo __user *, int, 214 struct compat_rusage __user *); 215 216struct compat_dirent { 217 u32 d_ino; 218 compat_off_t d_off; 219 u16 d_reclen; 220 char d_name[256]; 221}; 222 223struct compat_ustat { 224 compat_daddr_t f_tfree; 225 compat_ino_t f_tinode; 226 char f_fname[6]; 227 char f_fpack[6]; 228}; 229 230#define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3) 231 232typedef struct compat_sigevent { 233 compat_sigval_t sigev_value; 234 compat_int_t sigev_signo; 235 compat_int_t sigev_notify; 236 union { 237 compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE]; 238 compat_int_t _tid; 239 240 struct { 241 compat_uptr_t _function; 242 compat_uptr_t _attribute; 243 } _sigev_thread; 244 } _sigev_un; 245} compat_sigevent_t; 246 247struct compat_ifmap { 248 compat_ulong_t mem_start; 249 compat_ulong_t mem_end; 250 unsigned short base_addr; 251 unsigned char irq; 252 unsigned char dma; 253 unsigned char port; 254}; 255 256struct compat_if_settings { 257 unsigned int type; /* Type of physical device or protocol */ 258 unsigned int size; /* Size of the data allocated by the caller */ 259 compat_uptr_t ifs_ifsu; /* union of pointers */ 260}; 261 262struct compat_ifreq { 263 union { 264 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 265 } ifr_ifrn; 266 union { 267 struct sockaddr ifru_addr; 268 struct sockaddr ifru_dstaddr; 269 struct sockaddr ifru_broadaddr; 270 struct sockaddr ifru_netmask; 271 struct sockaddr ifru_hwaddr; 272 short ifru_flags; 273 compat_int_t ifru_ivalue; 274 compat_int_t ifru_mtu; 275 struct compat_ifmap ifru_map; 276 char ifru_slave[IFNAMSIZ]; /* Just fits the size */ 277 char ifru_newname[IFNAMSIZ]; 278 compat_caddr_t ifru_data; 279 struct compat_if_settings ifru_settings; 280 } ifr_ifru; 281}; 282 283struct compat_ifconf { 284 compat_int_t ifc_len; /* size of buffer */ 285 compat_caddr_t ifcbuf; 286}; 287 288struct compat_robust_list { 289 compat_uptr_t next; 290}; 291 292struct compat_robust_list_head { 293 struct compat_robust_list list; 294 compat_long_t futex_offset; 295 compat_uptr_t list_op_pending; 296}; 297 298#ifdef CONFIG_COMPAT_OLD_SIGACTION 299struct compat_old_sigaction { 300 compat_uptr_t sa_handler; 301 compat_old_sigset_t sa_mask; 302 compat_ulong_t sa_flags; 303 compat_uptr_t sa_restorer; 304}; 305#endif 306 307struct compat_statfs; 308struct compat_statfs64; 309struct compat_old_linux_dirent; 310struct compat_linux_dirent; 311struct linux_dirent64; 312struct compat_msghdr; 313struct compat_mmsghdr; 314struct compat_sysinfo; 315struct compat_sysctl_args; 316struct compat_kexec_segment; 317struct compat_mq_attr; 318struct compat_msgbuf; 319 320extern void compat_exit_robust_list(struct task_struct *curr); 321 322asmlinkage long 323compat_sys_set_robust_list(struct compat_robust_list_head __user *head, 324 compat_size_t len); 325asmlinkage long 326compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr, 327 compat_size_t __user *len_ptr); 328 329#ifdef CONFIG_ARCH_WANT_OLD_COMPAT_IPC 330long compat_sys_semctl(int first, int second, int third, void __user *uptr); 331long compat_sys_msgsnd(int first, int second, int third, void __user *uptr); 332long compat_sys_msgrcv(int first, int second, int msgtyp, int third, 333 int version, void __user *uptr); 334long compat_sys_shmat(int first, int second, compat_uptr_t third, int version, 335 void __user *uptr); 336#else 337long compat_sys_semctl(int semid, int semnum, int cmd, int arg); 338long compat_sys_msgsnd(int msqid, struct compat_msgbuf __user *msgp, 339 compat_ssize_t msgsz, int msgflg); 340long compat_sys_msgrcv(int msqid, struct compat_msgbuf __user *msgp, 341 compat_ssize_t msgsz, long msgtyp, int msgflg); 342long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg); 343#endif 344long compat_sys_msgctl(int first, int second, void __user *uptr); 345long compat_sys_shmctl(int first, int second, void __user *uptr); 346long compat_sys_semtimedop(int semid, struct sembuf __user *tsems, 347 unsigned nsems, const struct compat_timespec __user *timeout); 348asmlinkage long compat_sys_keyctl(u32 option, 349 u32 arg2, u32 arg3, u32 arg4, u32 arg5); 350asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32); 351 352asmlinkage ssize_t compat_sys_readv(unsigned long fd, 353 const struct compat_iovec __user *vec, unsigned long vlen); 354asmlinkage ssize_t compat_sys_writev(unsigned long fd, 355 const struct compat_iovec __user *vec, unsigned long vlen); 356asmlinkage ssize_t compat_sys_preadv(unsigned long fd, 357 const struct compat_iovec __user *vec, 358 unsigned long vlen, u32 pos_low, u32 pos_high); 359asmlinkage ssize_t compat_sys_pwritev(unsigned long fd, 360 const struct compat_iovec __user *vec, 361 unsigned long vlen, u32 pos_low, u32 pos_high); 362asmlinkage long comat_sys_lseek(unsigned int, compat_off_t, unsigned int); 363 364asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv, 365 const compat_uptr_t __user *envp); 366 367asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp, 368 compat_ulong_t __user *outp, compat_ulong_t __user *exp, 369 struct compat_timeval __user *tvp); 370 371asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg); 372 373asmlinkage long compat_sys_wait4(compat_pid_t pid, 374 compat_uint_t __user *stat_addr, int options, 375 struct compat_rusage __user *ru); 376 377#define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t)) 378 379#define BITS_TO_COMPAT_LONGS(bits) \ 380 (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG) 381 382long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask, 383 unsigned long bitmap_size); 384long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask, 385 unsigned long bitmap_size); 386int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from); 387int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from); 388int get_compat_sigevent(struct sigevent *event, 389 const struct compat_sigevent __user *u_event); 390long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig, 391 struct compat_siginfo __user *uinfo); 392#ifdef CONFIG_COMPAT_OLD_SIGACTION 393asmlinkage long compat_sys_sigaction(int sig, 394 const struct compat_old_sigaction __user *act, 395 struct compat_old_sigaction __user *oact); 396#endif 397 398static inline int compat_timeval_compare(struct compat_timeval *lhs, 399 struct compat_timeval *rhs) 400{ 401 if (lhs->tv_sec < rhs->tv_sec) 402 return -1; 403 if (lhs->tv_sec > rhs->tv_sec) 404 return 1; 405 return lhs->tv_usec - rhs->tv_usec; 406} 407 408static inline int compat_timespec_compare(struct compat_timespec *lhs, 409 struct compat_timespec *rhs) 410{ 411 if (lhs->tv_sec < rhs->tv_sec) 412 return -1; 413 if (lhs->tv_sec > rhs->tv_sec) 414 return 1; 415 return lhs->tv_nsec - rhs->tv_nsec; 416} 417 418extern int get_compat_itimerspec(struct itimerspec *dst, 419 const struct compat_itimerspec __user *src); 420extern int put_compat_itimerspec(struct compat_itimerspec __user *dst, 421 const struct itimerspec *src); 422 423asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv, 424 struct timezone __user *tz); 425asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv, 426 struct timezone __user *tz); 427 428asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp); 429 430extern int compat_printk(const char *fmt, ...); 431extern void sigset_from_compat(sigset_t *set, const compat_sigset_t *compat); 432extern void sigset_to_compat(compat_sigset_t *compat, const sigset_t *set); 433 434asmlinkage long compat_sys_migrate_pages(compat_pid_t pid, 435 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes, 436 const compat_ulong_t __user *new_nodes); 437 438extern int compat_ptrace_request(struct task_struct *child, 439 compat_long_t request, 440 compat_ulong_t addr, compat_ulong_t data); 441 442extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request, 443 compat_ulong_t addr, compat_ulong_t data); 444asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid, 445 compat_long_t addr, compat_long_t data); 446 447/* 448 * epoll (fs/eventpoll.c) compat bits follow ... 449 */ 450struct epoll_event; 451#define compat_epoll_event epoll_event 452asmlinkage long compat_sys_epoll_pwait(int epfd, 453 struct compat_epoll_event __user *events, 454 int maxevents, int timeout, 455 const compat_sigset_t __user *sigmask, 456 compat_size_t sigsetsize); 457 458asmlinkage long compat_sys_utime(const char __user *filename, 459 struct compat_utimbuf __user *t); 460asmlinkage long compat_sys_utimensat(unsigned int dfd, 461 const char __user *filename, 462 struct compat_timespec __user *t, 463 int flags); 464 465asmlinkage long compat_sys_time(compat_time_t __user *tloc); 466asmlinkage long compat_sys_stime(compat_time_t __user *tptr); 467asmlinkage long compat_sys_signalfd(int ufd, 468 const compat_sigset_t __user *sigmask, 469 compat_size_t sigsetsize); 470asmlinkage long compat_sys_timerfd_settime(int ufd, int flags, 471 const struct compat_itimerspec __user *utmr, 472 struct compat_itimerspec __user *otmr); 473asmlinkage long compat_sys_timerfd_gettime(int ufd, 474 struct compat_itimerspec __user *otmr); 475 476asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_page, 477 __u32 __user *pages, 478 const int __user *nodes, 479 int __user *status, 480 int flags); 481asmlinkage long compat_sys_futimesat(unsigned int dfd, 482 const char __user *filename, 483 struct compat_timeval __user *t); 484asmlinkage long compat_sys_utimes(const char __user *filename, 485 struct compat_timeval __user *t); 486asmlinkage long compat_sys_newstat(const char __user *filename, 487 struct compat_stat __user *statbuf); 488asmlinkage long compat_sys_newlstat(const char __user *filename, 489 struct compat_stat __user *statbuf); 490asmlinkage long compat_sys_newfstatat(unsigned int dfd, 491 const char __user *filename, 492 struct compat_stat __user *statbuf, 493 int flag); 494asmlinkage long compat_sys_newfstat(unsigned int fd, 495 struct compat_stat __user *statbuf); 496asmlinkage long compat_sys_statfs(const char __user *pathname, 497 struct compat_statfs __user *buf); 498asmlinkage long compat_sys_fstatfs(unsigned int fd, 499 struct compat_statfs __user *buf); 500asmlinkage long compat_sys_statfs64(const char __user *pathname, 501 compat_size_t sz, 502 struct compat_statfs64 __user *buf); 503asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz, 504 struct compat_statfs64 __user *buf); 505asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd, 506 unsigned long arg); 507asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd, 508 unsigned long arg); 509asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p); 510asmlinkage long compat_sys_io_getevents(aio_context_t ctx_id, 511 unsigned long min_nr, 512 unsigned long nr, 513 struct io_event __user *events, 514 struct compat_timespec __user *timeout); 515asmlinkage long compat_sys_io_submit(aio_context_t ctx_id, int nr, 516 u32 __user *iocb); 517asmlinkage long compat_sys_mount(const char __user *dev_name, 518 const char __user *dir_name, 519 const char __user *type, unsigned long flags, 520 const void __user *data); 521asmlinkage long compat_sys_old_readdir(unsigned int fd, 522 struct compat_old_linux_dirent __user *, 523 unsigned int count); 524asmlinkage long compat_sys_getdents(unsigned int fd, 525 struct compat_linux_dirent __user *dirent, 526 unsigned int count); 527asmlinkage long compat_sys_getdents64(unsigned int fd, 528 struct linux_dirent64 __user *dirent, 529 unsigned int count); 530asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *, 531 unsigned int nr_segs, unsigned int flags); 532asmlinkage long compat_sys_open(const char __user *filename, int flags, 533 umode_t mode); 534asmlinkage long compat_sys_openat(int dfd, const char __user *filename, 535 int flags, umode_t mode); 536asmlinkage long compat_sys_open_by_handle_at(int mountdirfd, 537 struct file_handle __user *handle, 538 int flags); 539asmlinkage long compat_sys_truncate(const char __user *, compat_off_t); 540asmlinkage long compat_sys_ftruncate(unsigned int, compat_ulong_t); 541asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp, 542 compat_ulong_t __user *outp, 543 compat_ulong_t __user *exp, 544 struct compat_timespec __user *tsp, 545 void __user *sig); 546asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds, 547 unsigned int nfds, 548 struct compat_timespec __user *tsp, 549 const compat_sigset_t __user *sigmask, 550 compat_size_t sigsetsize); 551asmlinkage long compat_sys_signalfd4(int ufd, 552 const compat_sigset_t __user *sigmask, 553 compat_size_t sigsetsize, int flags); 554asmlinkage long compat_sys_get_mempolicy(int __user *policy, 555 compat_ulong_t __user *nmask, 556 compat_ulong_t maxnode, 557 compat_ulong_t addr, 558 compat_ulong_t flags); 559asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask, 560 compat_ulong_t maxnode); 561asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len, 562 compat_ulong_t mode, 563 compat_ulong_t __user *nmask, 564 compat_ulong_t maxnode, compat_ulong_t flags); 565 566asmlinkage long compat_sys_setsockopt(int fd, int level, int optname, 567 char __user *optval, unsigned int optlen); 568asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, 569 unsigned flags); 570asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg, 571 unsigned vlen, unsigned int flags); 572asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg, 573 unsigned int flags); 574asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len, 575 unsigned flags); 576asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len, 577 unsigned flags, struct sockaddr __user *addr, 578 int __user *addrlen); 579asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg, 580 unsigned vlen, unsigned int flags, 581 struct compat_timespec __user *timeout); 582asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp, 583 struct compat_timespec __user *rmtp); 584asmlinkage long compat_sys_getitimer(int which, 585 struct compat_itimerval __user *it); 586asmlinkage long compat_sys_setitimer(int which, 587 struct compat_itimerval __user *in, 588 struct compat_itimerval __user *out); 589asmlinkage long compat_sys_times(struct compat_tms __user *tbuf); 590asmlinkage long compat_sys_setrlimit(unsigned int resource, 591 struct compat_rlimit __user *rlim); 592asmlinkage long compat_sys_getrlimit(unsigned int resource, 593 struct compat_rlimit __user *rlim); 594asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru); 595asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid, 596 unsigned int len, 597 compat_ulong_t __user *user_mask_ptr); 598asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid, 599 unsigned int len, 600 compat_ulong_t __user *user_mask_ptr); 601asmlinkage long compat_sys_timer_create(clockid_t which_clock, 602 struct compat_sigevent __user *timer_event_spec, 603 timer_t __user *created_timer_id); 604asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags, 605 struct compat_itimerspec __user *new, 606 struct compat_itimerspec __user *old); 607asmlinkage long compat_sys_timer_gettime(timer_t timer_id, 608 struct compat_itimerspec __user *setting); 609asmlinkage long compat_sys_clock_settime(clockid_t which_clock, 610 struct compat_timespec __user *tp); 611asmlinkage long compat_sys_clock_gettime(clockid_t which_clock, 612 struct compat_timespec __user *tp); 613asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock, 614 struct compat_timex __user *tp); 615asmlinkage long compat_sys_clock_getres(clockid_t which_clock, 616 struct compat_timespec __user *tp); 617asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags, 618 struct compat_timespec __user *rqtp, 619 struct compat_timespec __user *rmtp); 620asmlinkage long compat_sys_rt_sigtimedwait(compat_sigset_t __user *uthese, 621 struct compat_siginfo __user *uinfo, 622 struct compat_timespec __user *uts, compat_size_t sigsetsize); 623asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset, 624 compat_size_t sigsetsize); 625asmlinkage long compat_sys_rt_sigprocmask(int how, compat_sigset_t __user *set, 626 compat_sigset_t __user *oset, 627 compat_size_t sigsetsize); 628asmlinkage long compat_sys_rt_sigpending(compat_sigset_t __user *uset, 629 compat_size_t sigsetsize); 630#ifndef CONFIG_ODD_RT_SIGACTION 631asmlinkage long compat_sys_rt_sigaction(int, 632 const struct compat_sigaction __user *, 633 struct compat_sigaction __user *, 634 compat_size_t); 635#endif 636asmlinkage long compat_sys_rt_sigqueueinfo(compat_pid_t pid, int sig, 637 struct compat_siginfo __user *uinfo); 638asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info); 639asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd, 640 unsigned long arg); 641asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val, 642 struct compat_timespec __user *utime, u32 __user *uaddr2, 643 u32 val3); 644asmlinkage long compat_sys_getsockopt(int fd, int level, int optname, 645 char __user *optval, int __user *optlen); 646asmlinkage long compat_sys_kexec_load(unsigned long entry, 647 unsigned long nr_segments, 648 struct compat_kexec_segment __user *, 649 unsigned long flags); 650asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes, 651 const struct compat_mq_attr __user *u_mqstat, 652 struct compat_mq_attr __user *u_omqstat); 653asmlinkage long compat_sys_mq_notify(mqd_t mqdes, 654 const struct compat_sigevent __user *u_notification); 655asmlinkage long compat_sys_mq_open(const char __user *u_name, 656 int oflag, compat_mode_t mode, 657 struct compat_mq_attr __user *u_attr); 658asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes, 659 const char __user *u_msg_ptr, 660 size_t msg_len, unsigned int msg_prio, 661 const struct compat_timespec __user *u_abs_timeout); 662asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes, 663 char __user *u_msg_ptr, 664 size_t msg_len, unsigned int __user *u_msg_prio, 665 const struct compat_timespec __user *u_abs_timeout); 666asmlinkage long compat_sys_socketcall(int call, u32 __user *args); 667asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args); 668 669extern ssize_t compat_rw_copy_check_uvector(int type, 670 const struct compat_iovec __user *uvector, 671 unsigned long nr_segs, 672 unsigned long fast_segs, struct iovec *fast_pointer, 673 struct iovec **ret_pointer); 674 675extern void __user *compat_alloc_user_space(unsigned long len); 676 677asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid, 678 const struct compat_iovec __user *lvec, 679 unsigned long liovcnt, const struct compat_iovec __user *rvec, 680 unsigned long riovcnt, unsigned long flags); 681asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid, 682 const struct compat_iovec __user *lvec, 683 unsigned long liovcnt, const struct compat_iovec __user *rvec, 684 unsigned long riovcnt, unsigned long flags); 685 686asmlinkage long compat_sys_sendfile(int out_fd, int in_fd, 687 compat_off_t __user *offset, compat_size_t count); 688asmlinkage long compat_sys_sigaltstack(const compat_stack_t __user *uss_ptr, 689 compat_stack_t __user *uoss_ptr); 690 691int compat_restore_altstack(const compat_stack_t __user *uss); 692int __compat_save_altstack(compat_stack_t __user *, unsigned long); 693 694asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, 695 struct compat_timespec __user *interval); 696 697#else 698 699#define is_compat_task() (0) 700 701#endif /* CONFIG_COMPAT */ 702#endif /* _LINUX_COMPAT_H */ 703