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 #define compat_jiffies_to_clock_t(x) \ 27 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ) 28 29 typedef __compat_uid32_t compat_uid_t; 30 typedef __compat_gid32_t compat_gid_t; 31 32 struct compat_sel_arg_struct; 33 struct rusage; 34 35 struct compat_itimerspec { 36 struct compat_timespec it_interval; 37 struct compat_timespec it_value; 38 }; 39 40 struct compat_utimbuf { 41 compat_time_t actime; 42 compat_time_t modtime; 43 }; 44 45 struct compat_itimerval { 46 struct compat_timeval it_interval; 47 struct compat_timeval it_value; 48 }; 49 50 struct compat_tms { 51 compat_clock_t tms_utime; 52 compat_clock_t tms_stime; 53 compat_clock_t tms_cutime; 54 compat_clock_t tms_cstime; 55 }; 56 57 struct compat_timex { 58 compat_uint_t modes; 59 compat_long_t offset; 60 compat_long_t freq; 61 compat_long_t maxerror; 62 compat_long_t esterror; 63 compat_int_t status; 64 compat_long_t constant; 65 compat_long_t precision; 66 compat_long_t tolerance; 67 struct compat_timeval time; 68 compat_long_t tick; 69 compat_long_t ppsfreq; 70 compat_long_t jitter; 71 compat_int_t shift; 72 compat_long_t stabil; 73 compat_long_t jitcnt; 74 compat_long_t calcnt; 75 compat_long_t errcnt; 76 compat_long_t stbcnt; 77 compat_int_t tai; 78 79 compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32; 80 compat_int_t:32; compat_int_t:32; compat_int_t:32; compat_int_t:32; 81 compat_int_t:32; compat_int_t:32; compat_int_t:32; 82 }; 83 84 #define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW) 85 86 typedef struct { 87 compat_sigset_word sig[_COMPAT_NSIG_WORDS]; 88 } compat_sigset_t; 89 90 /* 91 * These functions operate strictly on struct compat_time* 92 */ 93 extern int get_compat_timespec(struct timespec *, 94 const struct compat_timespec __user *); 95 extern int put_compat_timespec(const struct timespec *, 96 struct compat_timespec __user *); 97 extern int get_compat_timeval(struct timeval *, 98 const struct compat_timeval __user *); 99 extern int put_compat_timeval(const struct timeval *, 100 struct compat_timeval __user *); 101 /* 102 * These functions operate on 32- or 64-bit specs depending on 103 * COMPAT_USE_64BIT_TIME, hence the void user pointer arguments and the 104 * naming as compat_get/put_ rather than get/put_compat_. 105 */ 106 extern int compat_get_timespec(struct timespec *, const void __user *); 107 extern int compat_put_timespec(const struct timespec *, void __user *); 108 extern int compat_get_timeval(struct timeval *, const void __user *); 109 extern int compat_put_timeval(const struct timeval *, void __user *); 110 111 struct compat_iovec { 112 compat_uptr_t iov_base; 113 compat_size_t iov_len; 114 }; 115 116 struct compat_rlimit { 117 compat_ulong_t rlim_cur; 118 compat_ulong_t rlim_max; 119 }; 120 121 struct compat_rusage { 122 struct compat_timeval ru_utime; 123 struct compat_timeval ru_stime; 124 compat_long_t ru_maxrss; 125 compat_long_t ru_ixrss; 126 compat_long_t ru_idrss; 127 compat_long_t ru_isrss; 128 compat_long_t ru_minflt; 129 compat_long_t ru_majflt; 130 compat_long_t ru_nswap; 131 compat_long_t ru_inblock; 132 compat_long_t ru_oublock; 133 compat_long_t ru_msgsnd; 134 compat_long_t ru_msgrcv; 135 compat_long_t ru_nsignals; 136 compat_long_t ru_nvcsw; 137 compat_long_t ru_nivcsw; 138 }; 139 140 extern int put_compat_rusage(const struct rusage *, 141 struct compat_rusage __user *); 142 143 struct compat_siginfo; 144 145 extern asmlinkage long compat_sys_waitid(int, compat_pid_t, 146 struct compat_siginfo __user *, int, 147 struct compat_rusage __user *); 148 149 struct compat_dirent { 150 u32 d_ino; 151 compat_off_t d_off; 152 u16 d_reclen; 153 char d_name[256]; 154 }; 155 156 struct compat_ustat { 157 compat_daddr_t f_tfree; 158 compat_ino_t f_tinode; 159 char f_fname[6]; 160 char f_fpack[6]; 161 }; 162 163 typedef union compat_sigval { 164 compat_int_t sival_int; 165 compat_uptr_t sival_ptr; 166 } compat_sigval_t; 167 168 #define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3) 169 170 typedef struct compat_sigevent { 171 compat_sigval_t sigev_value; 172 compat_int_t sigev_signo; 173 compat_int_t sigev_notify; 174 union { 175 compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE]; 176 compat_int_t _tid; 177 178 struct { 179 compat_uptr_t _function; 180 compat_uptr_t _attribute; 181 } _sigev_thread; 182 } _sigev_un; 183 } compat_sigevent_t; 184 185 struct compat_ifmap { 186 compat_ulong_t mem_start; 187 compat_ulong_t mem_end; 188 unsigned short base_addr; 189 unsigned char irq; 190 unsigned char dma; 191 unsigned char port; 192 }; 193 194 struct compat_if_settings { 195 unsigned int type; /* Type of physical device or protocol */ 196 unsigned int size; /* Size of the data allocated by the caller */ 197 compat_uptr_t ifs_ifsu; /* union of pointers */ 198 }; 199 200 struct compat_ifreq { 201 union { 202 char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ 203 } ifr_ifrn; 204 union { 205 struct sockaddr ifru_addr; 206 struct sockaddr ifru_dstaddr; 207 struct sockaddr ifru_broadaddr; 208 struct sockaddr ifru_netmask; 209 struct sockaddr ifru_hwaddr; 210 short ifru_flags; 211 compat_int_t ifru_ivalue; 212 compat_int_t ifru_mtu; 213 struct compat_ifmap ifru_map; 214 char ifru_slave[IFNAMSIZ]; /* Just fits the size */ 215 char ifru_newname[IFNAMSIZ]; 216 compat_caddr_t ifru_data; 217 struct compat_if_settings ifru_settings; 218 } ifr_ifru; 219 }; 220 221 struct compat_ifconf { 222 compat_int_t ifc_len; /* size of buffer */ 223 compat_caddr_t ifcbuf; 224 }; 225 226 struct compat_robust_list { 227 compat_uptr_t next; 228 }; 229 230 struct compat_robust_list_head { 231 struct compat_robust_list list; 232 compat_long_t futex_offset; 233 compat_uptr_t list_op_pending; 234 }; 235 236 struct compat_statfs; 237 struct compat_statfs64; 238 struct compat_old_linux_dirent; 239 struct compat_linux_dirent; 240 struct linux_dirent64; 241 struct compat_msghdr; 242 struct compat_mmsghdr; 243 struct compat_sysinfo; 244 struct compat_sysctl_args; 245 struct compat_kexec_segment; 246 struct compat_mq_attr; 247 struct compat_msgbuf; 248 249 extern void compat_exit_robust_list(struct task_struct *curr); 250 251 asmlinkage long 252 compat_sys_set_robust_list(struct compat_robust_list_head __user *head, 253 compat_size_t len); 254 asmlinkage long 255 compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr, 256 compat_size_t __user *len_ptr); 257 258 #ifdef CONFIG_ARCH_WANT_OLD_COMPAT_IPC 259 long compat_sys_semctl(int first, int second, int third, void __user *uptr); 260 long compat_sys_msgsnd(int first, int second, int third, void __user *uptr); 261 long compat_sys_msgrcv(int first, int second, int msgtyp, int third, 262 int version, void __user *uptr); 263 long compat_sys_shmat(int first, int second, compat_uptr_t third, int version, 264 void __user *uptr); 265 #else 266 long compat_sys_semctl(int semid, int semnum, int cmd, int arg); 267 long compat_sys_msgsnd(int msqid, struct compat_msgbuf __user *msgp, 268 compat_ssize_t msgsz, int msgflg); 269 long compat_sys_msgrcv(int msqid, struct compat_msgbuf __user *msgp, 270 compat_ssize_t msgsz, long msgtyp, int msgflg); 271 long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg); 272 #endif 273 long compat_sys_msgctl(int first, int second, void __user *uptr); 274 long compat_sys_shmctl(int first, int second, void __user *uptr); 275 long compat_sys_semtimedop(int semid, struct sembuf __user *tsems, 276 unsigned nsems, const struct compat_timespec __user *timeout); 277 asmlinkage long compat_sys_keyctl(u32 option, 278 u32 arg2, u32 arg3, u32 arg4, u32 arg5); 279 asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32); 280 281 asmlinkage ssize_t compat_sys_readv(unsigned long fd, 282 const struct compat_iovec __user *vec, unsigned long vlen); 283 asmlinkage ssize_t compat_sys_writev(unsigned long fd, 284 const struct compat_iovec __user *vec, unsigned long vlen); 285 asmlinkage ssize_t compat_sys_preadv(unsigned long fd, 286 const struct compat_iovec __user *vec, 287 unsigned long vlen, u32 pos_low, u32 pos_high); 288 asmlinkage ssize_t compat_sys_pwritev(unsigned long fd, 289 const struct compat_iovec __user *vec, 290 unsigned long vlen, u32 pos_low, u32 pos_high); 291 292 int compat_do_execve(char *filename, compat_uptr_t __user *argv, 293 compat_uptr_t __user *envp, struct pt_regs *regs); 294 295 asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp, 296 compat_ulong_t __user *outp, compat_ulong_t __user *exp, 297 struct compat_timeval __user *tvp); 298 299 asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg); 300 301 asmlinkage long compat_sys_wait4(compat_pid_t pid, 302 compat_uint_t __user *stat_addr, int options, 303 struct compat_rusage __user *ru); 304 305 #define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t)) 306 307 #define BITS_TO_COMPAT_LONGS(bits) \ 308 (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG) 309 310 long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask, 311 unsigned long bitmap_size); 312 long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask, 313 unsigned long bitmap_size); 314 int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from); 315 int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from); 316 int get_compat_sigevent(struct sigevent *event, 317 const struct compat_sigevent __user *u_event); 318 long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig, 319 struct compat_siginfo __user *uinfo); 320 321 static inline int compat_timeval_compare(struct compat_timeval *lhs, 322 struct compat_timeval *rhs) 323 { 324 if (lhs->tv_sec < rhs->tv_sec) 325 return -1; 326 if (lhs->tv_sec > rhs->tv_sec) 327 return 1; 328 return lhs->tv_usec - rhs->tv_usec; 329 } 330 331 static inline int compat_timespec_compare(struct compat_timespec *lhs, 332 struct compat_timespec *rhs) 333 { 334 if (lhs->tv_sec < rhs->tv_sec) 335 return -1; 336 if (lhs->tv_sec > rhs->tv_sec) 337 return 1; 338 return lhs->tv_nsec - rhs->tv_nsec; 339 } 340 341 extern int get_compat_itimerspec(struct itimerspec *dst, 342 const struct compat_itimerspec __user *src); 343 extern int put_compat_itimerspec(struct compat_itimerspec __user *dst, 344 const struct itimerspec *src); 345 346 asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv, 347 struct timezone __user *tz); 348 asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv, 349 struct timezone __user *tz); 350 351 asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp); 352 353 extern int compat_printk(const char *fmt, ...); 354 extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat); 355 356 asmlinkage long compat_sys_migrate_pages(compat_pid_t pid, 357 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes, 358 const compat_ulong_t __user *new_nodes); 359 360 extern int compat_ptrace_request(struct task_struct *child, 361 compat_long_t request, 362 compat_ulong_t addr, compat_ulong_t data); 363 364 extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request, 365 compat_ulong_t addr, compat_ulong_t data); 366 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid, 367 compat_long_t addr, compat_long_t data); 368 369 /* 370 * epoll (fs/eventpoll.c) compat bits follow ... 371 */ 372 struct epoll_event; 373 #define compat_epoll_event epoll_event 374 asmlinkage long compat_sys_epoll_pwait(int epfd, 375 struct compat_epoll_event __user *events, 376 int maxevents, int timeout, 377 const compat_sigset_t __user *sigmask, 378 compat_size_t sigsetsize); 379 380 asmlinkage long compat_sys_utime(const char __user *filename, 381 struct compat_utimbuf __user *t); 382 asmlinkage long compat_sys_utimensat(unsigned int dfd, 383 const char __user *filename, 384 struct compat_timespec __user *t, 385 int flags); 386 387 asmlinkage long compat_sys_time(compat_time_t __user *tloc); 388 asmlinkage long compat_sys_stime(compat_time_t __user *tptr); 389 asmlinkage long compat_sys_signalfd(int ufd, 390 const compat_sigset_t __user *sigmask, 391 compat_size_t sigsetsize); 392 asmlinkage long compat_sys_timerfd_settime(int ufd, int flags, 393 const struct compat_itimerspec __user *utmr, 394 struct compat_itimerspec __user *otmr); 395 asmlinkage long compat_sys_timerfd_gettime(int ufd, 396 struct compat_itimerspec __user *otmr); 397 398 asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_page, 399 __u32 __user *pages, 400 const int __user *nodes, 401 int __user *status, 402 int flags); 403 asmlinkage long compat_sys_futimesat(unsigned int dfd, 404 const char __user *filename, 405 struct compat_timeval __user *t); 406 asmlinkage long compat_sys_utimes(const char __user *filename, 407 struct compat_timeval __user *t); 408 asmlinkage long compat_sys_newstat(const char __user *filename, 409 struct compat_stat __user *statbuf); 410 asmlinkage long compat_sys_newlstat(const char __user *filename, 411 struct compat_stat __user *statbuf); 412 asmlinkage long compat_sys_newfstatat(unsigned int dfd, 413 const char __user *filename, 414 struct compat_stat __user *statbuf, 415 int flag); 416 asmlinkage long compat_sys_newfstat(unsigned int fd, 417 struct compat_stat __user *statbuf); 418 asmlinkage long compat_sys_statfs(const char __user *pathname, 419 struct compat_statfs __user *buf); 420 asmlinkage long compat_sys_fstatfs(unsigned int fd, 421 struct compat_statfs __user *buf); 422 asmlinkage long compat_sys_statfs64(const char __user *pathname, 423 compat_size_t sz, 424 struct compat_statfs64 __user *buf); 425 asmlinkage long compat_sys_fstatfs64(unsigned int fd, compat_size_t sz, 426 struct compat_statfs64 __user *buf); 427 asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd, 428 unsigned long arg); 429 asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd, 430 unsigned long arg); 431 asmlinkage long compat_sys_io_setup(unsigned nr_reqs, u32 __user *ctx32p); 432 asmlinkage long compat_sys_io_getevents(aio_context_t ctx_id, 433 unsigned long min_nr, 434 unsigned long nr, 435 struct io_event __user *events, 436 struct compat_timespec __user *timeout); 437 asmlinkage long compat_sys_io_submit(aio_context_t ctx_id, int nr, 438 u32 __user *iocb); 439 asmlinkage long compat_sys_mount(const char __user *dev_name, 440 const char __user *dir_name, 441 const char __user *type, unsigned long flags, 442 const void __user *data); 443 asmlinkage long compat_sys_old_readdir(unsigned int fd, 444 struct compat_old_linux_dirent __user *, 445 unsigned int count); 446 asmlinkage long compat_sys_getdents(unsigned int fd, 447 struct compat_linux_dirent __user *dirent, 448 unsigned int count); 449 asmlinkage long compat_sys_getdents64(unsigned int fd, 450 struct linux_dirent64 __user *dirent, 451 unsigned int count); 452 asmlinkage long compat_sys_vmsplice(int fd, const struct compat_iovec __user *, 453 unsigned int nr_segs, unsigned int flags); 454 asmlinkage long compat_sys_open(const char __user *filename, int flags, 455 umode_t mode); 456 asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename, 457 int flags, umode_t mode); 458 asmlinkage long compat_sys_open_by_handle_at(int mountdirfd, 459 struct file_handle __user *handle, 460 int flags); 461 asmlinkage long compat_sys_pselect6(int n, compat_ulong_t __user *inp, 462 compat_ulong_t __user *outp, 463 compat_ulong_t __user *exp, 464 struct compat_timespec __user *tsp, 465 void __user *sig); 466 asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds, 467 unsigned int nfds, 468 struct compat_timespec __user *tsp, 469 const compat_sigset_t __user *sigmask, 470 compat_size_t sigsetsize); 471 asmlinkage long compat_sys_signalfd4(int ufd, 472 const compat_sigset_t __user *sigmask, 473 compat_size_t sigsetsize, int flags); 474 asmlinkage long compat_sys_get_mempolicy(int __user *policy, 475 compat_ulong_t __user *nmask, 476 compat_ulong_t maxnode, 477 compat_ulong_t addr, 478 compat_ulong_t flags); 479 asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask, 480 compat_ulong_t maxnode); 481 asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len, 482 compat_ulong_t mode, 483 compat_ulong_t __user *nmask, 484 compat_ulong_t maxnode, compat_ulong_t flags); 485 486 asmlinkage long compat_sys_setsockopt(int fd, int level, int optname, 487 char __user *optval, unsigned int optlen); 488 asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, 489 unsigned flags); 490 asmlinkage long compat_sys_sendmmsg(int fd, struct compat_mmsghdr __user *mmsg, 491 unsigned vlen, unsigned int flags); 492 asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg, 493 unsigned int flags); 494 asmlinkage long compat_sys_recv(int fd, void __user *buf, size_t len, 495 unsigned flags); 496 asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, size_t len, 497 unsigned flags, struct sockaddr __user *addr, 498 int __user *addrlen); 499 asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg, 500 unsigned vlen, unsigned int flags, 501 struct compat_timespec __user *timeout); 502 asmlinkage long compat_sys_nanosleep(struct compat_timespec __user *rqtp, 503 struct compat_timespec __user *rmtp); 504 asmlinkage long compat_sys_getitimer(int which, 505 struct compat_itimerval __user *it); 506 asmlinkage long compat_sys_setitimer(int which, 507 struct compat_itimerval __user *in, 508 struct compat_itimerval __user *out); 509 asmlinkage long compat_sys_times(struct compat_tms __user *tbuf); 510 asmlinkage long compat_sys_setrlimit(unsigned int resource, 511 struct compat_rlimit __user *rlim); 512 asmlinkage long compat_sys_getrlimit(unsigned int resource, 513 struct compat_rlimit __user *rlim); 514 asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru); 515 asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid, 516 unsigned int len, 517 compat_ulong_t __user *user_mask_ptr); 518 asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid, 519 unsigned int len, 520 compat_ulong_t __user *user_mask_ptr); 521 asmlinkage long compat_sys_timer_create(clockid_t which_clock, 522 struct compat_sigevent __user *timer_event_spec, 523 timer_t __user *created_timer_id); 524 asmlinkage long compat_sys_timer_settime(timer_t timer_id, int flags, 525 struct compat_itimerspec __user *new, 526 struct compat_itimerspec __user *old); 527 asmlinkage long compat_sys_timer_gettime(timer_t timer_id, 528 struct compat_itimerspec __user *setting); 529 asmlinkage long compat_sys_clock_settime(clockid_t which_clock, 530 struct compat_timespec __user *tp); 531 asmlinkage long compat_sys_clock_gettime(clockid_t which_clock, 532 struct compat_timespec __user *tp); 533 asmlinkage long compat_sys_clock_adjtime(clockid_t which_clock, 534 struct compat_timex __user *tp); 535 asmlinkage long compat_sys_clock_getres(clockid_t which_clock, 536 struct compat_timespec __user *tp); 537 asmlinkage long compat_sys_clock_nanosleep(clockid_t which_clock, int flags, 538 struct compat_timespec __user *rqtp, 539 struct compat_timespec __user *rmtp); 540 asmlinkage long compat_sys_rt_sigtimedwait(compat_sigset_t __user *uthese, 541 struct compat_siginfo __user *uinfo, 542 struct compat_timespec __user *uts, compat_size_t sigsetsize); 543 asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset, 544 compat_size_t sigsetsize); 545 asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info); 546 asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd, 547 unsigned long arg); 548 asmlinkage long compat_sys_futex(u32 __user *uaddr, int op, u32 val, 549 struct compat_timespec __user *utime, u32 __user *uaddr2, 550 u32 val3); 551 asmlinkage long compat_sys_getsockopt(int fd, int level, int optname, 552 char __user *optval, int __user *optlen); 553 asmlinkage long compat_sys_kexec_load(unsigned long entry, 554 unsigned long nr_segments, 555 struct compat_kexec_segment __user *, 556 unsigned long flags); 557 asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes, 558 const struct compat_mq_attr __user *u_mqstat, 559 struct compat_mq_attr __user *u_omqstat); 560 asmlinkage long compat_sys_mq_notify(mqd_t mqdes, 561 const struct compat_sigevent __user *u_notification); 562 asmlinkage long compat_sys_mq_open(const char __user *u_name, 563 int oflag, compat_mode_t mode, 564 struct compat_mq_attr __user *u_attr); 565 asmlinkage long compat_sys_mq_timedsend(mqd_t mqdes, 566 const char __user *u_msg_ptr, 567 size_t msg_len, unsigned int msg_prio, 568 const struct compat_timespec __user *u_abs_timeout); 569 asmlinkage ssize_t compat_sys_mq_timedreceive(mqd_t mqdes, 570 char __user *u_msg_ptr, 571 size_t msg_len, unsigned int __user *u_msg_prio, 572 const struct compat_timespec __user *u_abs_timeout); 573 asmlinkage long compat_sys_socketcall(int call, u32 __user *args); 574 asmlinkage long compat_sys_sysctl(struct compat_sysctl_args __user *args); 575 576 extern ssize_t compat_rw_copy_check_uvector(int type, 577 const struct compat_iovec __user *uvector, 578 unsigned long nr_segs, 579 unsigned long fast_segs, struct iovec *fast_pointer, 580 struct iovec **ret_pointer); 581 582 extern void __user *compat_alloc_user_space(unsigned long len); 583 584 asmlinkage ssize_t compat_sys_process_vm_readv(compat_pid_t pid, 585 const struct compat_iovec __user *lvec, 586 unsigned long liovcnt, const struct compat_iovec __user *rvec, 587 unsigned long riovcnt, unsigned long flags); 588 asmlinkage ssize_t compat_sys_process_vm_writev(compat_pid_t pid, 589 const struct compat_iovec __user *lvec, 590 unsigned long liovcnt, const struct compat_iovec __user *rvec, 591 unsigned long riovcnt, unsigned long flags); 592 593 #else 594 595 #define is_compat_task() (0) 596 597 #endif /* CONFIG_COMPAT */ 598 #endif /* _LINUX_COMPAT_H */ 599