1 /* 2 * syscalls.h - Linux syscall interfaces (non-arch-specific) 3 * 4 * Copyright (c) 2004 Randy Dunlap 5 * Copyright (c) 2004 Open Source Development Labs 6 * 7 * This file is released under the GPLv2. 8 * See the file COPYING for more details. 9 */ 10 11 #ifndef _LINUX_SYSCALLS_H 12 #define _LINUX_SYSCALLS_H 13 14 struct epoll_event; 15 struct iattr; 16 struct inode; 17 struct iocb; 18 struct io_event; 19 struct iovec; 20 struct itimerspec; 21 struct itimerval; 22 struct kexec_segment; 23 struct linux_dirent; 24 struct linux_dirent64; 25 struct list_head; 26 struct mmap_arg_struct; 27 struct msgbuf; 28 struct user_msghdr; 29 struct mmsghdr; 30 struct msqid_ds; 31 struct new_utsname; 32 struct nfsctl_arg; 33 struct __old_kernel_stat; 34 struct oldold_utsname; 35 struct old_utsname; 36 struct pollfd; 37 struct rlimit; 38 struct rlimit64; 39 struct rusage; 40 struct sched_param; 41 struct sched_attr; 42 struct sel_arg_struct; 43 struct semaphore; 44 struct sembuf; 45 struct shmid_ds; 46 struct sockaddr; 47 struct stat; 48 struct stat64; 49 struct statfs; 50 struct statfs64; 51 struct statx; 52 struct __sysctl_args; 53 struct sysinfo; 54 struct timespec; 55 struct timeval; 56 struct timex; 57 struct timezone; 58 struct tms; 59 struct utimbuf; 60 struct mq_attr; 61 struct compat_stat; 62 struct compat_timeval; 63 struct robust_list_head; 64 struct getcpu_cache; 65 struct old_linux_dirent; 66 struct perf_event_attr; 67 struct file_handle; 68 struct sigaltstack; 69 union bpf_attr; 70 71 #include <linux/types.h> 72 #include <linux/aio_abi.h> 73 #include <linux/capability.h> 74 #include <linux/signal.h> 75 #include <linux/list.h> 76 #include <linux/bug.h> 77 #include <linux/sem.h> 78 #include <asm/siginfo.h> 79 #include <linux/unistd.h> 80 #include <linux/quota.h> 81 #include <linux/key.h> 82 #include <trace/syscall.h> 83 84 /* 85 * __MAP - apply a macro to syscall arguments 86 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to 87 * m(t1, a1), m(t2, a2), ..., m(tn, an) 88 * The first argument must be equal to the amount of type/name 89 * pairs given. Note that this list of pairs (i.e. the arguments 90 * of __MAP starting at the third one) is in the same format as 91 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n> 92 */ 93 #define __MAP0(m,...) 94 #define __MAP1(m,t,a) m(t,a) 95 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__) 96 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__) 97 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__) 98 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__) 99 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__) 100 #define __MAP(n,...) __MAP##n(__VA_ARGS__) 101 102 #define __SC_DECL(t, a) t a 103 #define __TYPE_AS(t, v) __same_type((__force t)0, v) 104 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L)) 105 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL)) 106 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL)) 107 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a 108 #define __SC_CAST(t, a) (__force t) a 109 #define __SC_ARGS(t, a) a 110 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long)) 111 112 #ifdef CONFIG_FTRACE_SYSCALLS 113 #define __SC_STR_ADECL(t, a) #a 114 #define __SC_STR_TDECL(t, a) #t 115 116 extern struct trace_event_class event_class_syscall_enter; 117 extern struct trace_event_class event_class_syscall_exit; 118 extern struct trace_event_functions enter_syscall_print_funcs; 119 extern struct trace_event_functions exit_syscall_print_funcs; 120 121 #define SYSCALL_TRACE_ENTER_EVENT(sname) \ 122 static struct syscall_metadata __syscall_meta_##sname; \ 123 static struct trace_event_call __used \ 124 event_enter_##sname = { \ 125 .class = &event_class_syscall_enter, \ 126 { \ 127 .name = "sys_enter"#sname, \ 128 }, \ 129 .event.funcs = &enter_syscall_print_funcs, \ 130 .data = (void *)&__syscall_meta_##sname,\ 131 .flags = TRACE_EVENT_FL_CAP_ANY, \ 132 }; \ 133 static struct trace_event_call __used \ 134 __attribute__((section("_ftrace_events"))) \ 135 *__event_enter_##sname = &event_enter_##sname; 136 137 #define SYSCALL_TRACE_EXIT_EVENT(sname) \ 138 static struct syscall_metadata __syscall_meta_##sname; \ 139 static struct trace_event_call __used \ 140 event_exit_##sname = { \ 141 .class = &event_class_syscall_exit, \ 142 { \ 143 .name = "sys_exit"#sname, \ 144 }, \ 145 .event.funcs = &exit_syscall_print_funcs, \ 146 .data = (void *)&__syscall_meta_##sname,\ 147 .flags = TRACE_EVENT_FL_CAP_ANY, \ 148 }; \ 149 static struct trace_event_call __used \ 150 __attribute__((section("_ftrace_events"))) \ 151 *__event_exit_##sname = &event_exit_##sname; 152 153 #define SYSCALL_METADATA(sname, nb, ...) \ 154 static const char *types_##sname[] = { \ 155 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \ 156 }; \ 157 static const char *args_##sname[] = { \ 158 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \ 159 }; \ 160 SYSCALL_TRACE_ENTER_EVENT(sname); \ 161 SYSCALL_TRACE_EXIT_EVENT(sname); \ 162 static struct syscall_metadata __used \ 163 __syscall_meta_##sname = { \ 164 .name = "sys"#sname, \ 165 .syscall_nr = -1, /* Filled in at boot */ \ 166 .nb_args = nb, \ 167 .types = nb ? types_##sname : NULL, \ 168 .args = nb ? args_##sname : NULL, \ 169 .enter_event = &event_enter_##sname, \ 170 .exit_event = &event_exit_##sname, \ 171 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \ 172 }; \ 173 static struct syscall_metadata __used \ 174 __attribute__((section("__syscalls_metadata"))) \ 175 *__p_syscall_meta_##sname = &__syscall_meta_##sname; 176 177 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 178 { 179 return tp_event->class == &event_class_syscall_enter || 180 tp_event->class == &event_class_syscall_exit; 181 } 182 183 #else 184 #define SYSCALL_METADATA(sname, nb, ...) 185 186 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 187 { 188 return 0; 189 } 190 #endif 191 192 #define SYSCALL_DEFINE0(sname) \ 193 SYSCALL_METADATA(_##sname, 0); \ 194 asmlinkage long sys_##sname(void); \ 195 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \ 196 asmlinkage long sys_##sname(void) 197 198 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__) 199 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__) 200 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) 201 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__) 202 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) 203 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) 204 205 #define SYSCALL_DEFINE_MAXARGS 6 206 207 #define SYSCALL_DEFINEx(x, sname, ...) \ 208 SYSCALL_METADATA(sname, x, __VA_ARGS__) \ 209 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) 210 211 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__) 212 #define __SYSCALL_DEFINEx(x, name, ...) \ 213 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ 214 __attribute__((alias(__stringify(SyS##name)))); \ 215 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \ 216 static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \ 217 asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ 218 asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ 219 { \ 220 long ret = SYSC##name(__MAP(x,__SC_CAST,__VA_ARGS__)); \ 221 __MAP(x,__SC_TEST,__VA_ARGS__); \ 222 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \ 223 return ret; \ 224 } \ 225 static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__)) 226 227 /* 228 * Called before coming back to user-mode. Returning to user-mode with an 229 * address limit different than USER_DS can allow to overwrite kernel memory. 230 */ 231 static inline void addr_limit_user_check(void) 232 { 233 #ifdef TIF_FSCHECK 234 if (!test_thread_flag(TIF_FSCHECK)) 235 return; 236 #endif 237 238 if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS), 239 "Invalid address limit on user-mode return")) 240 force_sig(SIGKILL, current); 241 242 #ifdef TIF_FSCHECK 243 clear_thread_flag(TIF_FSCHECK); 244 #endif 245 } 246 247 /* 248 * These syscall function prototypes are kept in the same order as 249 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below, 250 * followed by deprecated or obsolete system calls. 251 * 252 * Please note that these prototypes here are only provided for information 253 * purposes, for static analysis, and for linking from the syscall table. 254 * These functions should not be called elsewhere from kernel code. 255 */ 256 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx); 257 asmlinkage long sys_io_destroy(aio_context_t ctx); 258 asmlinkage long sys_io_submit(aio_context_t, long, 259 struct iocb __user * __user *); 260 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb, 261 struct io_event __user *result); 262 asmlinkage long sys_io_getevents(aio_context_t ctx_id, 263 long min_nr, 264 long nr, 265 struct io_event __user *events, 266 struct timespec __user *timeout); 267 268 /* fs/xattr.c */ 269 asmlinkage long sys_setxattr(const char __user *path, const char __user *name, 270 const void __user *value, size_t size, int flags); 271 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name, 272 const void __user *value, size_t size, int flags); 273 asmlinkage long sys_fsetxattr(int fd, const char __user *name, 274 const void __user *value, size_t size, int flags); 275 asmlinkage long sys_getxattr(const char __user *path, const char __user *name, 276 void __user *value, size_t size); 277 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name, 278 void __user *value, size_t size); 279 asmlinkage long sys_fgetxattr(int fd, const char __user *name, 280 void __user *value, size_t size); 281 asmlinkage long sys_listxattr(const char __user *path, char __user *list, 282 size_t size); 283 asmlinkage long sys_llistxattr(const char __user *path, char __user *list, 284 size_t size); 285 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size); 286 asmlinkage long sys_removexattr(const char __user *path, 287 const char __user *name); 288 asmlinkage long sys_lremovexattr(const char __user *path, 289 const char __user *name); 290 asmlinkage long sys_fremovexattr(int fd, const char __user *name); 291 292 /* fs/dcache.c */ 293 asmlinkage long sys_getcwd(char __user *buf, unsigned long size); 294 295 /* fs/cookies.c */ 296 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len); 297 298 /* fs/eventfd.c */ 299 asmlinkage long sys_eventfd2(unsigned int count, int flags); 300 301 /* fs/eventpoll.c */ 302 asmlinkage long sys_epoll_create1(int flags); 303 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, 304 struct epoll_event __user *event); 305 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events, 306 int maxevents, int timeout, 307 const sigset_t __user *sigmask, 308 size_t sigsetsize); 309 310 /* fs/fcntl.c */ 311 asmlinkage long sys_dup(unsigned int fildes); 312 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags); 313 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); 314 #if BITS_PER_LONG == 32 315 asmlinkage long sys_fcntl64(unsigned int fd, 316 unsigned int cmd, unsigned long arg); 317 #endif 318 319 /* fs/inotify_user.c */ 320 asmlinkage long sys_inotify_init1(int flags); 321 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, 322 u32 mask); 323 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd); 324 325 /* fs/ioctl.c */ 326 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, 327 unsigned long arg); 328 329 /* fs/ioprio.c */ 330 asmlinkage long sys_ioprio_set(int which, int who, int ioprio); 331 asmlinkage long sys_ioprio_get(int which, int who); 332 333 /* fs/locks.c */ 334 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd); 335 336 /* fs/namei.c */ 337 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode, 338 unsigned dev); 339 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode); 340 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag); 341 asmlinkage long sys_symlinkat(const char __user * oldname, 342 int newdfd, const char __user * newname); 343 asmlinkage long sys_linkat(int olddfd, const char __user *oldname, 344 int newdfd, const char __user *newname, int flags); 345 asmlinkage long sys_renameat(int olddfd, const char __user * oldname, 346 int newdfd, const char __user * newname); 347 348 /* fs/namespace.c */ 349 asmlinkage long sys_umount(char __user *name, int flags); 350 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name, 351 char __user *type, unsigned long flags, 352 void __user *data); 353 asmlinkage long sys_pivot_root(const char __user *new_root, 354 const char __user *put_old); 355 356 /* fs/nfsctl.c */ 357 358 /* fs/open.c */ 359 asmlinkage long sys_statfs(const char __user * path, 360 struct statfs __user *buf); 361 asmlinkage long sys_statfs64(const char __user *path, size_t sz, 362 struct statfs64 __user *buf); 363 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf); 364 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz, 365 struct statfs64 __user *buf); 366 asmlinkage long sys_truncate(const char __user *path, long length); 367 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length); 368 #if BITS_PER_LONG == 32 369 asmlinkage long sys_truncate64(const char __user *path, loff_t length); 370 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length); 371 #endif 372 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len); 373 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode); 374 asmlinkage long sys_chdir(const char __user *filename); 375 asmlinkage long sys_fchdir(unsigned int fd); 376 asmlinkage long sys_chroot(const char __user *filename); 377 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode); 378 asmlinkage long sys_fchmodat(int dfd, const char __user * filename, 379 umode_t mode); 380 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user, 381 gid_t group, int flag); 382 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group); 383 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags, 384 umode_t mode); 385 asmlinkage long sys_close(unsigned int fd); 386 asmlinkage long sys_vhangup(void); 387 388 /* fs/pipe.c */ 389 asmlinkage long sys_pipe2(int __user *fildes, int flags); 390 391 /* fs/quota.c */ 392 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special, 393 qid_t id, void __user *addr); 394 395 /* fs/readdir.c */ 396 asmlinkage long sys_getdents64(unsigned int fd, 397 struct linux_dirent64 __user *dirent, 398 unsigned int count); 399 400 /* fs/read_write.c */ 401 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high, 402 unsigned long offset_low, loff_t __user *result, 403 unsigned int whence); 404 asmlinkage long sys_lseek(unsigned int fd, off_t offset, 405 unsigned int whence); 406 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count); 407 asmlinkage long sys_write(unsigned int fd, const char __user *buf, 408 size_t count); 409 asmlinkage long sys_readv(unsigned long fd, 410 const struct iovec __user *vec, 411 unsigned long vlen); 412 asmlinkage long sys_writev(unsigned long fd, 413 const struct iovec __user *vec, 414 unsigned long vlen); 415 asmlinkage long sys_pread64(unsigned int fd, char __user *buf, 416 size_t count, loff_t pos); 417 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf, 418 size_t count, loff_t pos); 419 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec, 420 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 421 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec, 422 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 423 424 /* fs/sendfile.c */ 425 asmlinkage long sys_sendfile64(int out_fd, int in_fd, 426 loff_t __user *offset, size_t count); 427 428 /* fs/select.c */ 429 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *, 430 fd_set __user *, struct timespec __user *, 431 void __user *); 432 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int, 433 struct timespec __user *, const sigset_t __user *, 434 size_t); 435 436 /* fs/signalfd.c */ 437 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags); 438 439 /* fs/splice.c */ 440 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov, 441 unsigned long nr_segs, unsigned int flags); 442 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in, 443 int fd_out, loff_t __user *off_out, 444 size_t len, unsigned int flags); 445 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags); 446 447 /* fs/stat.c */ 448 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf, 449 int bufsiz); 450 asmlinkage long sys_newfstatat(int dfd, const char __user *filename, 451 struct stat __user *statbuf, int flag); 452 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf); 453 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 454 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf); 455 asmlinkage long sys_fstatat64(int dfd, const char __user *filename, 456 struct stat64 __user *statbuf, int flag); 457 #endif 458 459 /* fs/sync.c */ 460 asmlinkage long sys_sync(void); 461 asmlinkage long sys_fsync(unsigned int fd); 462 asmlinkage long sys_fdatasync(unsigned int fd); 463 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags, 464 loff_t offset, loff_t nbytes); 465 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 466 unsigned int flags); 467 468 /* fs/timerfd.c */ 469 asmlinkage long sys_timerfd_create(int clockid, int flags); 470 asmlinkage long sys_timerfd_settime(int ufd, int flags, 471 const struct itimerspec __user *utmr, 472 struct itimerspec __user *otmr); 473 asmlinkage long sys_timerfd_gettime(int ufd, struct itimerspec __user *otmr); 474 475 /* fs/utimes.c */ 476 asmlinkage long sys_utimensat(int dfd, const char __user *filename, 477 struct timespec __user *utimes, int flags); 478 479 /* kernel/acct.c */ 480 asmlinkage long sys_acct(const char __user *name); 481 482 /* kernel/capability.c */ 483 asmlinkage long sys_capget(cap_user_header_t header, 484 cap_user_data_t dataptr); 485 asmlinkage long sys_capset(cap_user_header_t header, 486 const cap_user_data_t data); 487 488 /* kernel/exec_domain.c */ 489 asmlinkage long sys_personality(unsigned int personality); 490 491 /* kernel/exit.c */ 492 asmlinkage long sys_exit(int error_code); 493 asmlinkage long sys_exit_group(int error_code); 494 asmlinkage long sys_waitid(int which, pid_t pid, 495 struct siginfo __user *infop, 496 int options, struct rusage __user *ru); 497 498 /* kernel/fork.c */ 499 asmlinkage long sys_set_tid_address(int __user *tidptr); 500 asmlinkage long sys_unshare(unsigned long unshare_flags); 501 502 /* kernel/futex.c */ 503 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val, 504 struct timespec __user *utime, u32 __user *uaddr2, 505 u32 val3); 506 asmlinkage long sys_get_robust_list(int pid, 507 struct robust_list_head __user * __user *head_ptr, 508 size_t __user *len_ptr); 509 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, 510 size_t len); 511 512 /* kernel/hrtimer.c */ 513 asmlinkage long sys_nanosleep(struct timespec __user *rqtp, struct timespec __user *rmtp); 514 515 /* kernel/itimer.c */ 516 asmlinkage long sys_getitimer(int which, struct itimerval __user *value); 517 asmlinkage long sys_setitimer(int which, 518 struct itimerval __user *value, 519 struct itimerval __user *ovalue); 520 521 /* kernel/kexec.c */ 522 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments, 523 struct kexec_segment __user *segments, 524 unsigned long flags); 525 526 /* kernel/module.c */ 527 asmlinkage long sys_init_module(void __user *umod, unsigned long len, 528 const char __user *uargs); 529 asmlinkage long sys_delete_module(const char __user *name_user, 530 unsigned int flags); 531 532 /* kernel/posix-timers.c */ 533 asmlinkage long sys_timer_create(clockid_t which_clock, 534 struct sigevent __user *timer_event_spec, 535 timer_t __user * created_timer_id); 536 asmlinkage long sys_timer_gettime(timer_t timer_id, 537 struct itimerspec __user *setting); 538 asmlinkage long sys_timer_getoverrun(timer_t timer_id); 539 asmlinkage long sys_timer_settime(timer_t timer_id, int flags, 540 const struct itimerspec __user *new_setting, 541 struct itimerspec __user *old_setting); 542 asmlinkage long sys_timer_delete(timer_t timer_id); 543 asmlinkage long sys_clock_settime(clockid_t which_clock, 544 const struct timespec __user *tp); 545 asmlinkage long sys_clock_gettime(clockid_t which_clock, 546 struct timespec __user *tp); 547 asmlinkage long sys_clock_getres(clockid_t which_clock, 548 struct timespec __user *tp); 549 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags, 550 const struct timespec __user *rqtp, 551 struct timespec __user *rmtp); 552 553 /* kernel/printk.c */ 554 asmlinkage long sys_syslog(int type, char __user *buf, int len); 555 556 /* kernel/ptrace.c */ 557 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, 558 unsigned long data); 559 /* kernel/sched/core.c */ 560 561 asmlinkage long sys_sched_setparam(pid_t pid, 562 struct sched_param __user *param); 563 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy, 564 struct sched_param __user *param); 565 asmlinkage long sys_sched_getscheduler(pid_t pid); 566 asmlinkage long sys_sched_getparam(pid_t pid, 567 struct sched_param __user *param); 568 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len, 569 unsigned long __user *user_mask_ptr); 570 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len, 571 unsigned long __user *user_mask_ptr); 572 asmlinkage long sys_sched_yield(void); 573 asmlinkage long sys_sched_get_priority_max(int policy); 574 asmlinkage long sys_sched_get_priority_min(int policy); 575 asmlinkage long sys_sched_rr_get_interval(pid_t pid, 576 struct timespec __user *interval); 577 578 /* kernel/signal.c */ 579 asmlinkage long sys_restart_syscall(void); 580 asmlinkage long sys_kill(pid_t pid, int sig); 581 asmlinkage long sys_tkill(pid_t pid, int sig); 582 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig); 583 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss, 584 struct sigaltstack __user *uoss); 585 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize); 586 #ifndef CONFIG_ODD_RT_SIGACTION 587 asmlinkage long sys_rt_sigaction(int, 588 const struct sigaction __user *, 589 struct sigaction __user *, 590 size_t); 591 #endif 592 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set, 593 sigset_t __user *oset, size_t sigsetsize); 594 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize); 595 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese, 596 siginfo_t __user *uinfo, 597 const struct timespec __user *uts, 598 size_t sigsetsize); 599 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo); 600 601 /* kernel/sys.c */ 602 asmlinkage long sys_setpriority(int which, int who, int niceval); 603 asmlinkage long sys_getpriority(int which, int who); 604 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, 605 void __user *arg); 606 asmlinkage long sys_setregid(gid_t rgid, gid_t egid); 607 asmlinkage long sys_setgid(gid_t gid); 608 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid); 609 asmlinkage long sys_setuid(uid_t uid); 610 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid); 611 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid); 612 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid); 613 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid); 614 asmlinkage long sys_setfsuid(uid_t uid); 615 asmlinkage long sys_setfsgid(gid_t gid); 616 asmlinkage long sys_times(struct tms __user *tbuf); 617 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid); 618 asmlinkage long sys_getpgid(pid_t pid); 619 asmlinkage long sys_getsid(pid_t pid); 620 asmlinkage long sys_setsid(void); 621 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist); 622 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist); 623 asmlinkage long sys_newuname(struct new_utsname __user *name); 624 asmlinkage long sys_sethostname(char __user *name, int len); 625 asmlinkage long sys_setdomainname(char __user *name, int len); 626 asmlinkage long sys_getrlimit(unsigned int resource, 627 struct rlimit __user *rlim); 628 asmlinkage long sys_setrlimit(unsigned int resource, 629 struct rlimit __user *rlim); 630 asmlinkage long sys_getrusage(int who, struct rusage __user *ru); 631 asmlinkage long sys_umask(int mask); 632 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, 633 unsigned long arg4, unsigned long arg5); 634 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache); 635 636 /* kernel/time.c */ 637 asmlinkage long sys_gettimeofday(struct timeval __user *tv, 638 struct timezone __user *tz); 639 asmlinkage long sys_settimeofday(struct timeval __user *tv, 640 struct timezone __user *tz); 641 asmlinkage long sys_adjtimex(struct timex __user *txc_p); 642 643 /* kernel/timer.c */ 644 asmlinkage long sys_getpid(void); 645 asmlinkage long sys_getppid(void); 646 asmlinkage long sys_getuid(void); 647 asmlinkage long sys_geteuid(void); 648 asmlinkage long sys_getgid(void); 649 asmlinkage long sys_getegid(void); 650 asmlinkage long sys_gettid(void); 651 asmlinkage long sys_sysinfo(struct sysinfo __user *info); 652 653 /* ipc/mqueue.c */ 654 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr); 655 asmlinkage long sys_mq_unlink(const char __user *name); 656 asmlinkage long sys_mq_timedsend(mqd_t mqdes, const char __user *msg_ptr, size_t msg_len, unsigned int msg_prio, const struct timespec __user *abs_timeout); 657 asmlinkage long sys_mq_timedreceive(mqd_t mqdes, char __user *msg_ptr, size_t msg_len, unsigned int __user *msg_prio, const struct timespec __user *abs_timeout); 658 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification); 659 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat); 660 661 /* ipc/msg.c */ 662 asmlinkage long sys_msgget(key_t key, int msgflg); 663 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 664 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp, 665 size_t msgsz, long msgtyp, int msgflg); 666 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp, 667 size_t msgsz, int msgflg); 668 669 /* ipc/sem.c */ 670 asmlinkage long sys_semget(key_t key, int nsems, int semflg); 671 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg); 672 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops, 673 unsigned nsops, 674 const struct timespec __user *timeout); 675 asmlinkage long sys_semop(int semid, struct sembuf __user *sops, 676 unsigned nsops); 677 678 /* ipc/shm.c */ 679 asmlinkage long sys_shmget(key_t key, size_t size, int flag); 680 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 681 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg); 682 asmlinkage long sys_shmdt(char __user *shmaddr); 683 684 /* net/socket.c */ 685 asmlinkage long sys_socket(int, int, int); 686 asmlinkage long sys_socketpair(int, int, int, int __user *); 687 asmlinkage long sys_bind(int, struct sockaddr __user *, int); 688 asmlinkage long sys_listen(int, int); 689 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *); 690 asmlinkage long sys_connect(int, struct sockaddr __user *, int); 691 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *); 692 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *); 693 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned, 694 struct sockaddr __user *, int); 695 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned, 696 struct sockaddr __user *, int __user *); 697 asmlinkage long sys_setsockopt(int fd, int level, int optname, 698 char __user *optval, int optlen); 699 asmlinkage long sys_getsockopt(int fd, int level, int optname, 700 char __user *optval, int __user *optlen); 701 asmlinkage long sys_shutdown(int, int); 702 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 703 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 704 705 /* mm/filemap.c */ 706 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count); 707 708 /* mm/nommu.c, also with MMU */ 709 asmlinkage long sys_brk(unsigned long brk); 710 asmlinkage long sys_munmap(unsigned long addr, size_t len); 711 asmlinkage long sys_mremap(unsigned long addr, 712 unsigned long old_len, unsigned long new_len, 713 unsigned long flags, unsigned long new_addr); 714 715 /* security/keys/keyctl.c */ 716 asmlinkage long sys_add_key(const char __user *_type, 717 const char __user *_description, 718 const void __user *_payload, 719 size_t plen, 720 key_serial_t destringid); 721 asmlinkage long sys_request_key(const char __user *_type, 722 const char __user *_description, 723 const char __user *_callout_info, 724 key_serial_t destringid); 725 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3, 726 unsigned long arg4, unsigned long arg5); 727 728 /* arch/example/kernel/sys_example.c */ 729 #ifdef CONFIG_CLONE_BACKWARDS 730 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long, 731 int __user *); 732 #else 733 #ifdef CONFIG_CLONE_BACKWARDS3 734 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *, 735 int __user *, unsigned long); 736 #else 737 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, 738 int __user *, unsigned long); 739 #endif 740 #endif 741 asmlinkage long sys_execve(const char __user *filename, 742 const char __user *const __user *argv, 743 const char __user *const __user *envp); 744 745 /* mm/fadvise.c */ 746 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 747 748 /* mm/, CONFIG_MMU only */ 749 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags); 750 asmlinkage long sys_swapoff(const char __user *specialfile); 751 asmlinkage long sys_mprotect(unsigned long start, size_t len, 752 unsigned long prot); 753 asmlinkage long sys_msync(unsigned long start, size_t len, int flags); 754 asmlinkage long sys_mlock(unsigned long start, size_t len); 755 asmlinkage long sys_munlock(unsigned long start, size_t len); 756 asmlinkage long sys_mlockall(int flags); 757 asmlinkage long sys_munlockall(void); 758 asmlinkage long sys_mincore(unsigned long start, size_t len, 759 unsigned char __user * vec); 760 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior); 761 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, 762 unsigned long prot, unsigned long pgoff, 763 unsigned long flags); 764 asmlinkage long sys_mbind(unsigned long start, unsigned long len, 765 unsigned long mode, 766 const unsigned long __user *nmask, 767 unsigned long maxnode, 768 unsigned flags); 769 asmlinkage long sys_get_mempolicy(int __user *policy, 770 unsigned long __user *nmask, 771 unsigned long maxnode, 772 unsigned long addr, unsigned long flags); 773 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask, 774 unsigned long maxnode); 775 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode, 776 const unsigned long __user *from, 777 const unsigned long __user *to); 778 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages, 779 const void __user * __user *pages, 780 const int __user *nodes, 781 int __user *status, 782 int flags); 783 784 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, 785 siginfo_t __user *uinfo); 786 asmlinkage long sys_perf_event_open( 787 struct perf_event_attr __user *attr_uptr, 788 pid_t pid, int cpu, int group_fd, unsigned long flags); 789 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int); 790 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg, 791 unsigned int vlen, unsigned flags, 792 struct timespec __user *timeout); 793 794 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr, 795 int options, struct rusage __user *ru); 796 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource, 797 const struct rlimit64 __user *new_rlim, 798 struct rlimit64 __user *old_rlim); 799 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags); 800 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags, 801 u64 mask, int fd, 802 const char __user *pathname); 803 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name, 804 struct file_handle __user *handle, 805 int __user *mnt_id, int flag); 806 asmlinkage long sys_open_by_handle_at(int mountdirfd, 807 struct file_handle __user *handle, 808 int flags); 809 asmlinkage long sys_clock_adjtime(clockid_t which_clock, 810 struct timex __user *tx); 811 asmlinkage long sys_syncfs(int fd); 812 asmlinkage long sys_setns(int fd, int nstype); 813 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg, 814 unsigned int vlen, unsigned flags); 815 asmlinkage long sys_process_vm_readv(pid_t pid, 816 const struct iovec __user *lvec, 817 unsigned long liovcnt, 818 const struct iovec __user *rvec, 819 unsigned long riovcnt, 820 unsigned long flags); 821 asmlinkage long sys_process_vm_writev(pid_t pid, 822 const struct iovec __user *lvec, 823 unsigned long liovcnt, 824 const struct iovec __user *rvec, 825 unsigned long riovcnt, 826 unsigned long flags); 827 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type, 828 unsigned long idx1, unsigned long idx2); 829 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags); 830 asmlinkage long sys_sched_setattr(pid_t pid, 831 struct sched_attr __user *attr, 832 unsigned int flags); 833 asmlinkage long sys_sched_getattr(pid_t pid, 834 struct sched_attr __user *attr, 835 unsigned int size, 836 unsigned int flags); 837 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname, 838 int newdfd, const char __user *newname, 839 unsigned int flags); 840 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, 841 const char __user *uargs); 842 asmlinkage long sys_getrandom(char __user *buf, size_t count, 843 unsigned int flags); 844 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags); 845 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size); 846 asmlinkage long sys_execveat(int dfd, const char __user *filename, 847 const char __user *const __user *argv, 848 const char __user *const __user *envp, int flags); 849 asmlinkage long sys_userfaultfd(int flags); 850 asmlinkage long sys_membarrier(int cmd, int flags); 851 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags); 852 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in, 853 int fd_out, loff_t __user *off_out, 854 size_t len, unsigned int flags); 855 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec, 856 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 857 rwf_t flags); 858 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec, 859 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 860 rwf_t flags); 861 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len, 862 unsigned long prot, int pkey); 863 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val); 864 asmlinkage long sys_pkey_free(int pkey); 865 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags, 866 unsigned mask, struct statx __user *buffer); 867 868 869 /* 870 * Architecture-specific system calls 871 */ 872 873 /* arch/x86/kernel/ioport.c */ 874 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); 875 876 /* pciconfig: alpha, arm, arm64, ia64, sparc */ 877 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn, 878 unsigned long off, unsigned long len, 879 void __user *buf); 880 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn, 881 unsigned long off, unsigned long len, 882 void __user *buf); 883 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn); 884 885 /* powerpc */ 886 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc, 887 __u32 __user *ustatus); 888 asmlinkage long sys_spu_create(const char __user *name, 889 unsigned int flags, umode_t mode, int fd); 890 891 892 /* 893 * Deprecated system calls which are still defined in 894 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch 895 */ 896 897 /* __ARCH_WANT_SYSCALL_NO_AT */ 898 asmlinkage long sys_open(const char __user *filename, 899 int flags, umode_t mode); 900 asmlinkage long sys_link(const char __user *oldname, 901 const char __user *newname); 902 asmlinkage long sys_unlink(const char __user *pathname); 903 asmlinkage long sys_mknod(const char __user *filename, umode_t mode, 904 unsigned dev); 905 asmlinkage long sys_chmod(const char __user *filename, umode_t mode); 906 asmlinkage long sys_chown(const char __user *filename, 907 uid_t user, gid_t group); 908 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode); 909 asmlinkage long sys_rmdir(const char __user *pathname); 910 asmlinkage long sys_lchown(const char __user *filename, 911 uid_t user, gid_t group); 912 asmlinkage long sys_access(const char __user *filename, int mode); 913 asmlinkage long sys_rename(const char __user *oldname, 914 const char __user *newname); 915 asmlinkage long sys_symlink(const char __user *old, const char __user *new); 916 asmlinkage long sys_utimes(char __user *filename, 917 struct timeval __user *utimes); 918 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 919 asmlinkage long sys_stat64(const char __user *filename, 920 struct stat64 __user *statbuf); 921 asmlinkage long sys_lstat64(const char __user *filename, 922 struct stat64 __user *statbuf); 923 #endif 924 925 /* __ARCH_WANT_SYSCALL_NO_FLAGS */ 926 asmlinkage long sys_pipe(int __user *fildes); 927 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd); 928 asmlinkage long sys_epoll_create(int size); 929 asmlinkage long sys_inotify_init(void); 930 asmlinkage long sys_eventfd(unsigned int count); 931 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask); 932 933 /* __ARCH_WANT_SYSCALL_OFF_T */ 934 asmlinkage long sys_sendfile(int out_fd, int in_fd, 935 off_t __user *offset, size_t count); 936 asmlinkage long sys_newstat(const char __user *filename, 937 struct stat __user *statbuf); 938 asmlinkage long sys_newlstat(const char __user *filename, 939 struct stat __user *statbuf); 940 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice); 941 942 /* __ARCH_WANT_SYSCALL_DEPRECATED */ 943 asmlinkage long sys_alarm(unsigned int seconds); 944 asmlinkage long sys_getpgrp(void); 945 asmlinkage long sys_pause(void); 946 asmlinkage long sys_time(time_t __user *tloc); 947 asmlinkage long sys_utime(char __user *filename, 948 struct utimbuf __user *times); 949 asmlinkage long sys_creat(const char __user *pathname, umode_t mode); 950 asmlinkage long sys_getdents(unsigned int fd, 951 struct linux_dirent __user *dirent, 952 unsigned int count); 953 asmlinkage long sys_futimesat(int dfd, const char __user *filename, 954 struct timeval __user *utimes); 955 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp, 956 fd_set __user *exp, struct timeval __user *tvp); 957 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds, 958 int timeout); 959 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, 960 int maxevents, int timeout); 961 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf); 962 asmlinkage long sys_vfork(void); 963 asmlinkage long sys_recv(int, void __user *, size_t, unsigned); 964 asmlinkage long sys_send(int, void __user *, size_t, unsigned); 965 asmlinkage long sys_bdflush(int func, long data); 966 asmlinkage long sys_oldumount(char __user *name); 967 asmlinkage long sys_uselib(const char __user *library); 968 asmlinkage long sys_sysctl(struct __sysctl_args __user *args); 969 asmlinkage long sys_sysfs(int option, 970 unsigned long arg1, unsigned long arg2); 971 asmlinkage long sys_fork(void); 972 973 /* obsolete: kernel/time/time.c */ 974 asmlinkage long sys_stime(time_t __user *tptr); 975 976 /* obsolete: kernel/signal.c */ 977 asmlinkage long sys_sigpending(old_sigset_t __user *uset); 978 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set, 979 old_sigset_t __user *oset); 980 #ifdef CONFIG_OLD_SIGSUSPEND 981 asmlinkage long sys_sigsuspend(old_sigset_t mask); 982 #endif 983 984 #ifdef CONFIG_OLD_SIGSUSPEND3 985 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask); 986 #endif 987 988 #ifdef CONFIG_OLD_SIGACTION 989 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *, 990 struct old_sigaction __user *); 991 #endif 992 asmlinkage long sys_sgetmask(void); 993 asmlinkage long sys_ssetmask(int newmask); 994 asmlinkage long sys_signal(int sig, __sighandler_t handler); 995 996 /* obsolete: kernel/sched/core.c */ 997 asmlinkage long sys_nice(int increment); 998 999 /* obsolete: kernel/kexec_file.c */ 1000 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd, 1001 unsigned long cmdline_len, 1002 const char __user *cmdline_ptr, 1003 unsigned long flags); 1004 1005 /* obsolete: kernel/exit.c */ 1006 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options); 1007 1008 /* obsolete: kernel/uid16.c */ 1009 #ifdef CONFIG_HAVE_UID16 1010 asmlinkage long sys_chown16(const char __user *filename, 1011 old_uid_t user, old_gid_t group); 1012 asmlinkage long sys_lchown16(const char __user *filename, 1013 old_uid_t user, old_gid_t group); 1014 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group); 1015 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid); 1016 asmlinkage long sys_setgid16(old_gid_t gid); 1017 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid); 1018 asmlinkage long sys_setuid16(old_uid_t uid); 1019 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid); 1020 asmlinkage long sys_getresuid16(old_uid_t __user *ruid, 1021 old_uid_t __user *euid, old_uid_t __user *suid); 1022 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid); 1023 asmlinkage long sys_getresgid16(old_gid_t __user *rgid, 1024 old_gid_t __user *egid, old_gid_t __user *sgid); 1025 asmlinkage long sys_setfsuid16(old_uid_t uid); 1026 asmlinkage long sys_setfsgid16(old_gid_t gid); 1027 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist); 1028 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist); 1029 asmlinkage long sys_getuid16(void); 1030 asmlinkage long sys_geteuid16(void); 1031 asmlinkage long sys_getgid16(void); 1032 asmlinkage long sys_getegid16(void); 1033 #endif 1034 1035 /* obsolete: net/socket.c */ 1036 asmlinkage long sys_socketcall(int call, unsigned long __user *args); 1037 1038 /* obsolete: fs/stat.c */ 1039 asmlinkage long sys_stat(const char __user *filename, 1040 struct __old_kernel_stat __user *statbuf); 1041 asmlinkage long sys_lstat(const char __user *filename, 1042 struct __old_kernel_stat __user *statbuf); 1043 asmlinkage long sys_fstat(unsigned int fd, 1044 struct __old_kernel_stat __user *statbuf); 1045 asmlinkage long sys_readlink(const char __user *path, 1046 char __user *buf, int bufsiz); 1047 1048 /* obsolete: fs/select.c */ 1049 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg); 1050 1051 /* obsolete: fs/readdir.c */ 1052 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int); 1053 1054 /* obsolete: kernel/sys.c */ 1055 asmlinkage long sys_gethostname(char __user *name, int len); 1056 asmlinkage long sys_uname(struct old_utsname __user *); 1057 asmlinkage long sys_olduname(struct oldold_utsname __user *); 1058 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT 1059 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim); 1060 #endif 1061 1062 /* obsolete: ipc */ 1063 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second, 1064 unsigned long third, void __user *ptr, long fifth); 1065 1066 /* obsolete: mm/ */ 1067 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len, 1068 unsigned long prot, unsigned long flags, 1069 unsigned long fd, unsigned long pgoff); 1070 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg); 1071 1072 1073 /* 1074 * Not a real system call, but a placeholder for syscalls which are 1075 * not implemented -- see kernel/sys_ni.c 1076 */ 1077 asmlinkage long sys_ni_syscall(void); 1078 1079 1080 /* 1081 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly. 1082 * Instead, use one of the functions which work equivalently, such as 1083 * the ksys_xyzyyz() functions prototyped below. 1084 */ 1085 1086 int ksys_mount(char __user *dev_name, char __user *dir_name, char __user *type, 1087 unsigned long flags, void __user *data); 1088 int ksys_umount(char __user *name, int flags); 1089 int ksys_dup(unsigned int fildes); 1090 int ksys_chroot(const char __user *filename); 1091 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count); 1092 int ksys_chdir(const char __user *filename); 1093 int ksys_fchmod(unsigned int fd, umode_t mode); 1094 int ksys_fchown(unsigned int fd, uid_t user, gid_t group); 1095 int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent, 1096 unsigned int count); 1097 int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg); 1098 off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence); 1099 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count); 1100 void ksys_sync(void); 1101 int ksys_unshare(unsigned long unshare_flags); 1102 int ksys_setsid(void); 1103 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 1104 unsigned int flags); 1105 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count, 1106 loff_t pos); 1107 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf, 1108 size_t count, loff_t pos); 1109 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len); 1110 #ifdef CONFIG_ADVISE_SYSCALLS 1111 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 1112 #else 1113 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, 1114 int advice) 1115 { 1116 return -EINVAL; 1117 } 1118 #endif 1119 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len, 1120 unsigned long prot, unsigned long flags, 1121 unsigned long fd, unsigned long pgoff); 1122 ssize_t ksys_readahead(int fd, loff_t offset, size_t count); 1123 1124 /* 1125 * The following kernel syscall equivalents are just wrappers to fs-internal 1126 * functions. Therefore, provide stubs to be inlined at the callsites. 1127 */ 1128 extern long do_unlinkat(int dfd, struct filename *name); 1129 1130 static inline long ksys_unlink(const char __user *pathname) 1131 { 1132 return do_unlinkat(AT_FDCWD, getname(pathname)); 1133 } 1134 1135 extern long do_rmdir(int dfd, const char __user *pathname); 1136 1137 static inline long ksys_rmdir(const char __user *pathname) 1138 { 1139 return do_rmdir(AT_FDCWD, pathname); 1140 } 1141 1142 extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode); 1143 1144 static inline long ksys_mkdir(const char __user *pathname, umode_t mode) 1145 { 1146 return do_mkdirat(AT_FDCWD, pathname, mode); 1147 } 1148 1149 extern long do_symlinkat(const char __user *oldname, int newdfd, 1150 const char __user *newname); 1151 1152 static inline long ksys_symlink(const char __user *oldname, 1153 const char __user *newname) 1154 { 1155 return do_symlinkat(oldname, AT_FDCWD, newname); 1156 } 1157 1158 extern long do_mknodat(int dfd, const char __user *filename, umode_t mode, 1159 unsigned int dev); 1160 1161 static inline long ksys_mknod(const char __user *filename, umode_t mode, 1162 unsigned int dev) 1163 { 1164 return do_mknodat(AT_FDCWD, filename, mode, dev); 1165 } 1166 1167 extern int do_linkat(int olddfd, const char __user *oldname, int newdfd, 1168 const char __user *newname, int flags); 1169 1170 static inline long ksys_link(const char __user *oldname, 1171 const char __user *newname) 1172 { 1173 return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0); 1174 } 1175 1176 extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode); 1177 1178 static inline int ksys_chmod(const char __user *filename, umode_t mode) 1179 { 1180 return do_fchmodat(AT_FDCWD, filename, mode); 1181 } 1182 1183 extern long do_faccessat(int dfd, const char __user *filename, int mode); 1184 1185 static inline long ksys_access(const char __user *filename, int mode) 1186 { 1187 return do_faccessat(AT_FDCWD, filename, mode); 1188 } 1189 1190 extern int do_fchownat(int dfd, const char __user *filename, uid_t user, 1191 gid_t group, int flag); 1192 1193 static inline long ksys_chown(const char __user *filename, uid_t user, 1194 gid_t group) 1195 { 1196 return do_fchownat(AT_FDCWD, filename, user, group, 0); 1197 } 1198 1199 static inline long ksys_lchown(const char __user *filename, uid_t user, 1200 gid_t group) 1201 { 1202 return do_fchownat(AT_FDCWD, filename, user, group, 1203 AT_SYMLINK_NOFOLLOW); 1204 } 1205 1206 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small); 1207 1208 static inline long ksys_ftruncate(unsigned int fd, unsigned long length) 1209 { 1210 return do_sys_ftruncate(fd, length, 1); 1211 } 1212 1213 extern int __close_fd(struct files_struct *files, unsigned int fd); 1214 1215 /* 1216 * In contrast to sys_close(), this stub does not check whether the syscall 1217 * should or should not be restarted, but returns the raw error codes from 1218 * __close_fd(). 1219 */ 1220 static inline int ksys_close(unsigned int fd) 1221 { 1222 return __close_fd(current->files, fd); 1223 } 1224 1225 extern long do_sys_open(int dfd, const char __user *filename, int flags, 1226 umode_t mode); 1227 1228 static inline long ksys_open(const char __user *filename, int flags, 1229 umode_t mode) 1230 { 1231 if (force_o_largefile()) 1232 flags |= O_LARGEFILE; 1233 return do_sys_open(AT_FDCWD, filename, flags, mode); 1234 } 1235 1236 extern long do_sys_truncate(const char __user *pathname, loff_t length); 1237 1238 static inline long ksys_truncate(const char __user *pathname, loff_t length) 1239 { 1240 return do_sys_truncate(pathname, length); 1241 } 1242 1243 #endif 1244