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 struct rseq; 70 union bpf_attr; 71 72 #include <linux/types.h> 73 #include <linux/aio_abi.h> 74 #include <linux/capability.h> 75 #include <linux/signal.h> 76 #include <linux/list.h> 77 #include <linux/bug.h> 78 #include <linux/sem.h> 79 #include <asm/siginfo.h> 80 #include <linux/unistd.h> 81 #include <linux/quota.h> 82 #include <linux/key.h> 83 #include <trace/syscall.h> 84 85 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 86 /* 87 * It may be useful for an architecture to override the definitions of the 88 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a 89 * different calling convention for syscalls. To allow for that, the prototypes 90 * for the sys_*() functions below will *not* be included if 91 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 92 */ 93 #include <asm/syscall_wrapper.h> 94 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 95 96 /* 97 * __MAP - apply a macro to syscall arguments 98 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to 99 * m(t1, a1), m(t2, a2), ..., m(tn, an) 100 * The first argument must be equal to the amount of type/name 101 * pairs given. Note that this list of pairs (i.e. the arguments 102 * of __MAP starting at the third one) is in the same format as 103 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n> 104 */ 105 #define __MAP0(m,...) 106 #define __MAP1(m,t,a,...) m(t,a) 107 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__) 108 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__) 109 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__) 110 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__) 111 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__) 112 #define __MAP(n,...) __MAP##n(__VA_ARGS__) 113 114 #define __SC_DECL(t, a) t a 115 #define __TYPE_AS(t, v) __same_type((__force t)0, v) 116 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L)) 117 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL)) 118 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL)) 119 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a 120 #define __SC_CAST(t, a) (__force t) a 121 #define __SC_ARGS(t, a) a 122 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long)) 123 124 #ifdef CONFIG_FTRACE_SYSCALLS 125 #define __SC_STR_ADECL(t, a) #a 126 #define __SC_STR_TDECL(t, a) #t 127 128 extern struct trace_event_class event_class_syscall_enter; 129 extern struct trace_event_class event_class_syscall_exit; 130 extern struct trace_event_functions enter_syscall_print_funcs; 131 extern struct trace_event_functions exit_syscall_print_funcs; 132 133 #define SYSCALL_TRACE_ENTER_EVENT(sname) \ 134 static struct syscall_metadata __syscall_meta_##sname; \ 135 static struct trace_event_call __used \ 136 event_enter_##sname = { \ 137 .class = &event_class_syscall_enter, \ 138 { \ 139 .name = "sys_enter"#sname, \ 140 }, \ 141 .event.funcs = &enter_syscall_print_funcs, \ 142 .data = (void *)&__syscall_meta_##sname,\ 143 .flags = TRACE_EVENT_FL_CAP_ANY, \ 144 }; \ 145 static struct trace_event_call __used \ 146 __attribute__((section("_ftrace_events"))) \ 147 *__event_enter_##sname = &event_enter_##sname; 148 149 #define SYSCALL_TRACE_EXIT_EVENT(sname) \ 150 static struct syscall_metadata __syscall_meta_##sname; \ 151 static struct trace_event_call __used \ 152 event_exit_##sname = { \ 153 .class = &event_class_syscall_exit, \ 154 { \ 155 .name = "sys_exit"#sname, \ 156 }, \ 157 .event.funcs = &exit_syscall_print_funcs, \ 158 .data = (void *)&__syscall_meta_##sname,\ 159 .flags = TRACE_EVENT_FL_CAP_ANY, \ 160 }; \ 161 static struct trace_event_call __used \ 162 __attribute__((section("_ftrace_events"))) \ 163 *__event_exit_##sname = &event_exit_##sname; 164 165 #define SYSCALL_METADATA(sname, nb, ...) \ 166 static const char *types_##sname[] = { \ 167 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \ 168 }; \ 169 static const char *args_##sname[] = { \ 170 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \ 171 }; \ 172 SYSCALL_TRACE_ENTER_EVENT(sname); \ 173 SYSCALL_TRACE_EXIT_EVENT(sname); \ 174 static struct syscall_metadata __used \ 175 __syscall_meta_##sname = { \ 176 .name = "sys"#sname, \ 177 .syscall_nr = -1, /* Filled in at boot */ \ 178 .nb_args = nb, \ 179 .types = nb ? types_##sname : NULL, \ 180 .args = nb ? args_##sname : NULL, \ 181 .enter_event = &event_enter_##sname, \ 182 .exit_event = &event_exit_##sname, \ 183 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \ 184 }; \ 185 static struct syscall_metadata __used \ 186 __attribute__((section("__syscalls_metadata"))) \ 187 *__p_syscall_meta_##sname = &__syscall_meta_##sname; 188 189 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 190 { 191 return tp_event->class == &event_class_syscall_enter || 192 tp_event->class == &event_class_syscall_exit; 193 } 194 195 #else 196 #define SYSCALL_METADATA(sname, nb, ...) 197 198 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 199 { 200 return 0; 201 } 202 #endif 203 204 #ifndef SYSCALL_DEFINE0 205 #define SYSCALL_DEFINE0(sname) \ 206 SYSCALL_METADATA(_##sname, 0); \ 207 asmlinkage long sys_##sname(void); \ 208 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \ 209 asmlinkage long sys_##sname(void) 210 #endif /* SYSCALL_DEFINE0 */ 211 212 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__) 213 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__) 214 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) 215 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__) 216 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) 217 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) 218 219 #define SYSCALL_DEFINE_MAXARGS 6 220 221 #define SYSCALL_DEFINEx(x, sname, ...) \ 222 SYSCALL_METADATA(sname, x, __VA_ARGS__) \ 223 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) 224 225 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__) 226 227 /* 228 * The asmlinkage stub is aliased to a function named __se_sys_*() which 229 * sign-extends 32-bit ints to longs whenever needed. The actual work is 230 * done within __do_sys_*(). 231 */ 232 #ifndef __SYSCALL_DEFINEx 233 #define __SYSCALL_DEFINEx(x, name, ...) \ 234 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ 235 __attribute__((alias(__stringify(__se_sys##name)))); \ 236 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \ 237 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ 238 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ 239 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ 240 { \ 241 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\ 242 __MAP(x,__SC_TEST,__VA_ARGS__); \ 243 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \ 244 return ret; \ 245 } \ 246 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) 247 #endif /* __SYSCALL_DEFINEx */ 248 249 /* 250 * Called before coming back to user-mode. Returning to user-mode with an 251 * address limit different than USER_DS can allow to overwrite kernel memory. 252 */ 253 static inline void addr_limit_user_check(void) 254 { 255 #ifdef TIF_FSCHECK 256 if (!test_thread_flag(TIF_FSCHECK)) 257 return; 258 #endif 259 260 if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS), 261 "Invalid address limit on user-mode return")) 262 force_sig(SIGKILL, current); 263 264 #ifdef TIF_FSCHECK 265 clear_thread_flag(TIF_FSCHECK); 266 #endif 267 } 268 269 /* 270 * These syscall function prototypes are kept in the same order as 271 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below, 272 * followed by deprecated or obsolete system calls. 273 * 274 * Please note that these prototypes here are only provided for information 275 * purposes, for static analysis, and for linking from the syscall table. 276 * These functions should not be called elsewhere from kernel code. 277 * 278 * As the syscall calling convention may be different from the default 279 * for architectures overriding the syscall calling convention, do not 280 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 281 */ 282 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 283 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx); 284 asmlinkage long sys_io_destroy(aio_context_t ctx); 285 asmlinkage long sys_io_submit(aio_context_t, long, 286 struct iocb __user * __user *); 287 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb, 288 struct io_event __user *result); 289 asmlinkage long sys_io_getevents(aio_context_t ctx_id, 290 long min_nr, 291 long nr, 292 struct io_event __user *events, 293 struct timespec __user *timeout); 294 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id, 295 long min_nr, 296 long nr, 297 struct io_event __user *events, 298 struct timespec __user *timeout, 299 const struct __aio_sigset *sig); 300 301 /* fs/xattr.c */ 302 asmlinkage long sys_setxattr(const char __user *path, const char __user *name, 303 const void __user *value, size_t size, int flags); 304 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name, 305 const void __user *value, size_t size, int flags); 306 asmlinkage long sys_fsetxattr(int fd, const char __user *name, 307 const void __user *value, size_t size, int flags); 308 asmlinkage long sys_getxattr(const char __user *path, const char __user *name, 309 void __user *value, size_t size); 310 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name, 311 void __user *value, size_t size); 312 asmlinkage long sys_fgetxattr(int fd, const char __user *name, 313 void __user *value, size_t size); 314 asmlinkage long sys_listxattr(const char __user *path, char __user *list, 315 size_t size); 316 asmlinkage long sys_llistxattr(const char __user *path, char __user *list, 317 size_t size); 318 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size); 319 asmlinkage long sys_removexattr(const char __user *path, 320 const char __user *name); 321 asmlinkage long sys_lremovexattr(const char __user *path, 322 const char __user *name); 323 asmlinkage long sys_fremovexattr(int fd, const char __user *name); 324 325 /* fs/dcache.c */ 326 asmlinkage long sys_getcwd(char __user *buf, unsigned long size); 327 328 /* fs/cookies.c */ 329 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len); 330 331 /* fs/eventfd.c */ 332 asmlinkage long sys_eventfd2(unsigned int count, int flags); 333 334 /* fs/eventpoll.c */ 335 asmlinkage long sys_epoll_create1(int flags); 336 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, 337 struct epoll_event __user *event); 338 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events, 339 int maxevents, int timeout, 340 const sigset_t __user *sigmask, 341 size_t sigsetsize); 342 343 /* fs/fcntl.c */ 344 asmlinkage long sys_dup(unsigned int fildes); 345 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags); 346 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); 347 #if BITS_PER_LONG == 32 348 asmlinkage long sys_fcntl64(unsigned int fd, 349 unsigned int cmd, unsigned long arg); 350 #endif 351 352 /* fs/inotify_user.c */ 353 asmlinkage long sys_inotify_init1(int flags); 354 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, 355 u32 mask); 356 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd); 357 358 /* fs/ioctl.c */ 359 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, 360 unsigned long arg); 361 362 /* fs/ioprio.c */ 363 asmlinkage long sys_ioprio_set(int which, int who, int ioprio); 364 asmlinkage long sys_ioprio_get(int which, int who); 365 366 /* fs/locks.c */ 367 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd); 368 369 /* fs/namei.c */ 370 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode, 371 unsigned dev); 372 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode); 373 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag); 374 asmlinkage long sys_symlinkat(const char __user * oldname, 375 int newdfd, const char __user * newname); 376 asmlinkage long sys_linkat(int olddfd, const char __user *oldname, 377 int newdfd, const char __user *newname, int flags); 378 asmlinkage long sys_renameat(int olddfd, const char __user * oldname, 379 int newdfd, const char __user * newname); 380 381 /* fs/namespace.c */ 382 asmlinkage long sys_umount(char __user *name, int flags); 383 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name, 384 char __user *type, unsigned long flags, 385 void __user *data); 386 asmlinkage long sys_pivot_root(const char __user *new_root, 387 const char __user *put_old); 388 389 /* fs/nfsctl.c */ 390 391 /* fs/open.c */ 392 asmlinkage long sys_statfs(const char __user * path, 393 struct statfs __user *buf); 394 asmlinkage long sys_statfs64(const char __user *path, size_t sz, 395 struct statfs64 __user *buf); 396 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf); 397 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz, 398 struct statfs64 __user *buf); 399 asmlinkage long sys_truncate(const char __user *path, long length); 400 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length); 401 #if BITS_PER_LONG == 32 402 asmlinkage long sys_truncate64(const char __user *path, loff_t length); 403 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length); 404 #endif 405 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len); 406 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode); 407 asmlinkage long sys_chdir(const char __user *filename); 408 asmlinkage long sys_fchdir(unsigned int fd); 409 asmlinkage long sys_chroot(const char __user *filename); 410 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode); 411 asmlinkage long sys_fchmodat(int dfd, const char __user * filename, 412 umode_t mode); 413 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user, 414 gid_t group, int flag); 415 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group); 416 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags, 417 umode_t mode); 418 asmlinkage long sys_close(unsigned int fd); 419 asmlinkage long sys_vhangup(void); 420 421 /* fs/pipe.c */ 422 asmlinkage long sys_pipe2(int __user *fildes, int flags); 423 424 /* fs/quota.c */ 425 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special, 426 qid_t id, void __user *addr); 427 428 /* fs/readdir.c */ 429 asmlinkage long sys_getdents64(unsigned int fd, 430 struct linux_dirent64 __user *dirent, 431 unsigned int count); 432 433 /* fs/read_write.c */ 434 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high, 435 unsigned long offset_low, loff_t __user *result, 436 unsigned int whence); 437 asmlinkage long sys_lseek(unsigned int fd, off_t offset, 438 unsigned int whence); 439 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count); 440 asmlinkage long sys_write(unsigned int fd, const char __user *buf, 441 size_t count); 442 asmlinkage long sys_readv(unsigned long fd, 443 const struct iovec __user *vec, 444 unsigned long vlen); 445 asmlinkage long sys_writev(unsigned long fd, 446 const struct iovec __user *vec, 447 unsigned long vlen); 448 asmlinkage long sys_pread64(unsigned int fd, char __user *buf, 449 size_t count, loff_t pos); 450 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf, 451 size_t count, loff_t pos); 452 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec, 453 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 454 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec, 455 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 456 457 /* fs/sendfile.c */ 458 asmlinkage long sys_sendfile64(int out_fd, int in_fd, 459 loff_t __user *offset, size_t count); 460 461 /* fs/select.c */ 462 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *, 463 fd_set __user *, struct timespec __user *, 464 void __user *); 465 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int, 466 struct timespec __user *, const sigset_t __user *, 467 size_t); 468 469 /* fs/signalfd.c */ 470 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags); 471 472 /* fs/splice.c */ 473 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov, 474 unsigned long nr_segs, unsigned int flags); 475 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in, 476 int fd_out, loff_t __user *off_out, 477 size_t len, unsigned int flags); 478 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags); 479 480 /* fs/stat.c */ 481 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf, 482 int bufsiz); 483 asmlinkage long sys_newfstatat(int dfd, const char __user *filename, 484 struct stat __user *statbuf, int flag); 485 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf); 486 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 487 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf); 488 asmlinkage long sys_fstatat64(int dfd, const char __user *filename, 489 struct stat64 __user *statbuf, int flag); 490 #endif 491 492 /* fs/sync.c */ 493 asmlinkage long sys_sync(void); 494 asmlinkage long sys_fsync(unsigned int fd); 495 asmlinkage long sys_fdatasync(unsigned int fd); 496 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags, 497 loff_t offset, loff_t nbytes); 498 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 499 unsigned int flags); 500 501 /* fs/timerfd.c */ 502 asmlinkage long sys_timerfd_create(int clockid, int flags); 503 asmlinkage long sys_timerfd_settime(int ufd, int flags, 504 const struct itimerspec __user *utmr, 505 struct itimerspec __user *otmr); 506 asmlinkage long sys_timerfd_gettime(int ufd, struct itimerspec __user *otmr); 507 508 /* fs/utimes.c */ 509 asmlinkage long sys_utimensat(int dfd, const char __user *filename, 510 struct timespec __user *utimes, int flags); 511 512 /* kernel/acct.c */ 513 asmlinkage long sys_acct(const char __user *name); 514 515 /* kernel/capability.c */ 516 asmlinkage long sys_capget(cap_user_header_t header, 517 cap_user_data_t dataptr); 518 asmlinkage long sys_capset(cap_user_header_t header, 519 const cap_user_data_t data); 520 521 /* kernel/exec_domain.c */ 522 asmlinkage long sys_personality(unsigned int personality); 523 524 /* kernel/exit.c */ 525 asmlinkage long sys_exit(int error_code); 526 asmlinkage long sys_exit_group(int error_code); 527 asmlinkage long sys_waitid(int which, pid_t pid, 528 struct siginfo __user *infop, 529 int options, struct rusage __user *ru); 530 531 /* kernel/fork.c */ 532 asmlinkage long sys_set_tid_address(int __user *tidptr); 533 asmlinkage long sys_unshare(unsigned long unshare_flags); 534 535 /* kernel/futex.c */ 536 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val, 537 struct timespec __user *utime, u32 __user *uaddr2, 538 u32 val3); 539 asmlinkage long sys_get_robust_list(int pid, 540 struct robust_list_head __user * __user *head_ptr, 541 size_t __user *len_ptr); 542 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, 543 size_t len); 544 545 /* kernel/hrtimer.c */ 546 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp, 547 struct __kernel_timespec __user *rmtp); 548 549 /* kernel/itimer.c */ 550 asmlinkage long sys_getitimer(int which, struct itimerval __user *value); 551 asmlinkage long sys_setitimer(int which, 552 struct itimerval __user *value, 553 struct itimerval __user *ovalue); 554 555 /* kernel/kexec.c */ 556 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments, 557 struct kexec_segment __user *segments, 558 unsigned long flags); 559 560 /* kernel/module.c */ 561 asmlinkage long sys_init_module(void __user *umod, unsigned long len, 562 const char __user *uargs); 563 asmlinkage long sys_delete_module(const char __user *name_user, 564 unsigned int flags); 565 566 /* kernel/posix-timers.c */ 567 asmlinkage long sys_timer_create(clockid_t which_clock, 568 struct sigevent __user *timer_event_spec, 569 timer_t __user * created_timer_id); 570 asmlinkage long sys_timer_gettime(timer_t timer_id, 571 struct itimerspec __user *setting); 572 asmlinkage long sys_timer_getoverrun(timer_t timer_id); 573 asmlinkage long sys_timer_settime(timer_t timer_id, int flags, 574 const struct itimerspec __user *new_setting, 575 struct itimerspec __user *old_setting); 576 asmlinkage long sys_timer_delete(timer_t timer_id); 577 asmlinkage long sys_clock_settime(clockid_t which_clock, 578 const struct __kernel_timespec __user *tp); 579 asmlinkage long sys_clock_gettime(clockid_t which_clock, 580 struct __kernel_timespec __user *tp); 581 asmlinkage long sys_clock_getres(clockid_t which_clock, 582 struct __kernel_timespec __user *tp); 583 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags, 584 const struct __kernel_timespec __user *rqtp, 585 struct __kernel_timespec __user *rmtp); 586 587 /* kernel/printk.c */ 588 asmlinkage long sys_syslog(int type, char __user *buf, int len); 589 590 /* kernel/ptrace.c */ 591 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, 592 unsigned long data); 593 /* kernel/sched/core.c */ 594 595 asmlinkage long sys_sched_setparam(pid_t pid, 596 struct sched_param __user *param); 597 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy, 598 struct sched_param __user *param); 599 asmlinkage long sys_sched_getscheduler(pid_t pid); 600 asmlinkage long sys_sched_getparam(pid_t pid, 601 struct sched_param __user *param); 602 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len, 603 unsigned long __user *user_mask_ptr); 604 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len, 605 unsigned long __user *user_mask_ptr); 606 asmlinkage long sys_sched_yield(void); 607 asmlinkage long sys_sched_get_priority_max(int policy); 608 asmlinkage long sys_sched_get_priority_min(int policy); 609 asmlinkage long sys_sched_rr_get_interval(pid_t pid, 610 struct timespec __user *interval); 611 612 /* kernel/signal.c */ 613 asmlinkage long sys_restart_syscall(void); 614 asmlinkage long sys_kill(pid_t pid, int sig); 615 asmlinkage long sys_tkill(pid_t pid, int sig); 616 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig); 617 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss, 618 struct sigaltstack __user *uoss); 619 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize); 620 #ifndef CONFIG_ODD_RT_SIGACTION 621 asmlinkage long sys_rt_sigaction(int, 622 const struct sigaction __user *, 623 struct sigaction __user *, 624 size_t); 625 #endif 626 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set, 627 sigset_t __user *oset, size_t sigsetsize); 628 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize); 629 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese, 630 siginfo_t __user *uinfo, 631 const struct timespec __user *uts, 632 size_t sigsetsize); 633 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo); 634 635 /* kernel/sys.c */ 636 asmlinkage long sys_setpriority(int which, int who, int niceval); 637 asmlinkage long sys_getpriority(int which, int who); 638 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, 639 void __user *arg); 640 asmlinkage long sys_setregid(gid_t rgid, gid_t egid); 641 asmlinkage long sys_setgid(gid_t gid); 642 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid); 643 asmlinkage long sys_setuid(uid_t uid); 644 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid); 645 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid); 646 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid); 647 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid); 648 asmlinkage long sys_setfsuid(uid_t uid); 649 asmlinkage long sys_setfsgid(gid_t gid); 650 asmlinkage long sys_times(struct tms __user *tbuf); 651 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid); 652 asmlinkage long sys_getpgid(pid_t pid); 653 asmlinkage long sys_getsid(pid_t pid); 654 asmlinkage long sys_setsid(void); 655 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist); 656 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist); 657 asmlinkage long sys_newuname(struct new_utsname __user *name); 658 asmlinkage long sys_sethostname(char __user *name, int len); 659 asmlinkage long sys_setdomainname(char __user *name, int len); 660 asmlinkage long sys_getrlimit(unsigned int resource, 661 struct rlimit __user *rlim); 662 asmlinkage long sys_setrlimit(unsigned int resource, 663 struct rlimit __user *rlim); 664 asmlinkage long sys_getrusage(int who, struct rusage __user *ru); 665 asmlinkage long sys_umask(int mask); 666 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, 667 unsigned long arg4, unsigned long arg5); 668 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache); 669 670 /* kernel/time.c */ 671 asmlinkage long sys_gettimeofday(struct timeval __user *tv, 672 struct timezone __user *tz); 673 asmlinkage long sys_settimeofday(struct timeval __user *tv, 674 struct timezone __user *tz); 675 asmlinkage long sys_adjtimex(struct timex __user *txc_p); 676 677 /* kernel/timer.c */ 678 asmlinkage long sys_getpid(void); 679 asmlinkage long sys_getppid(void); 680 asmlinkage long sys_getuid(void); 681 asmlinkage long sys_geteuid(void); 682 asmlinkage long sys_getgid(void); 683 asmlinkage long sys_getegid(void); 684 asmlinkage long sys_gettid(void); 685 asmlinkage long sys_sysinfo(struct sysinfo __user *info); 686 687 /* ipc/mqueue.c */ 688 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr); 689 asmlinkage long sys_mq_unlink(const char __user *name); 690 asmlinkage long sys_mq_timedsend(mqd_t mqdes, const char __user *msg_ptr, size_t msg_len, unsigned int msg_prio, const struct __kernel_timespec __user *abs_timeout); 691 asmlinkage long sys_mq_timedreceive(mqd_t mqdes, char __user *msg_ptr, size_t msg_len, unsigned int __user *msg_prio, const struct __kernel_timespec __user *abs_timeout); 692 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification); 693 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat); 694 695 /* ipc/msg.c */ 696 asmlinkage long sys_msgget(key_t key, int msgflg); 697 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 698 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp, 699 size_t msgsz, long msgtyp, int msgflg); 700 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp, 701 size_t msgsz, int msgflg); 702 703 /* ipc/sem.c */ 704 asmlinkage long sys_semget(key_t key, int nsems, int semflg); 705 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg); 706 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops, 707 unsigned nsops, 708 const struct __kernel_timespec __user *timeout); 709 asmlinkage long sys_semop(int semid, struct sembuf __user *sops, 710 unsigned nsops); 711 712 /* ipc/shm.c */ 713 asmlinkage long sys_shmget(key_t key, size_t size, int flag); 714 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 715 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg); 716 asmlinkage long sys_shmdt(char __user *shmaddr); 717 718 /* net/socket.c */ 719 asmlinkage long sys_socket(int, int, int); 720 asmlinkage long sys_socketpair(int, int, int, int __user *); 721 asmlinkage long sys_bind(int, struct sockaddr __user *, int); 722 asmlinkage long sys_listen(int, int); 723 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *); 724 asmlinkage long sys_connect(int, struct sockaddr __user *, int); 725 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *); 726 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *); 727 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned, 728 struct sockaddr __user *, int); 729 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned, 730 struct sockaddr __user *, int __user *); 731 asmlinkage long sys_setsockopt(int fd, int level, int optname, 732 char __user *optval, int optlen); 733 asmlinkage long sys_getsockopt(int fd, int level, int optname, 734 char __user *optval, int __user *optlen); 735 asmlinkage long sys_shutdown(int, int); 736 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 737 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 738 739 /* mm/filemap.c */ 740 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count); 741 742 /* mm/nommu.c, also with MMU */ 743 asmlinkage long sys_brk(unsigned long brk); 744 asmlinkage long sys_munmap(unsigned long addr, size_t len); 745 asmlinkage long sys_mremap(unsigned long addr, 746 unsigned long old_len, unsigned long new_len, 747 unsigned long flags, unsigned long new_addr); 748 749 /* security/keys/keyctl.c */ 750 asmlinkage long sys_add_key(const char __user *_type, 751 const char __user *_description, 752 const void __user *_payload, 753 size_t plen, 754 key_serial_t destringid); 755 asmlinkage long sys_request_key(const char __user *_type, 756 const char __user *_description, 757 const char __user *_callout_info, 758 key_serial_t destringid); 759 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3, 760 unsigned long arg4, unsigned long arg5); 761 762 /* arch/example/kernel/sys_example.c */ 763 #ifdef CONFIG_CLONE_BACKWARDS 764 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long, 765 int __user *); 766 #else 767 #ifdef CONFIG_CLONE_BACKWARDS3 768 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *, 769 int __user *, unsigned long); 770 #else 771 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, 772 int __user *, unsigned long); 773 #endif 774 #endif 775 asmlinkage long sys_execve(const char __user *filename, 776 const char __user *const __user *argv, 777 const char __user *const __user *envp); 778 779 /* mm/fadvise.c */ 780 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 781 782 /* mm/, CONFIG_MMU only */ 783 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags); 784 asmlinkage long sys_swapoff(const char __user *specialfile); 785 asmlinkage long sys_mprotect(unsigned long start, size_t len, 786 unsigned long prot); 787 asmlinkage long sys_msync(unsigned long start, size_t len, int flags); 788 asmlinkage long sys_mlock(unsigned long start, size_t len); 789 asmlinkage long sys_munlock(unsigned long start, size_t len); 790 asmlinkage long sys_mlockall(int flags); 791 asmlinkage long sys_munlockall(void); 792 asmlinkage long sys_mincore(unsigned long start, size_t len, 793 unsigned char __user * vec); 794 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior); 795 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, 796 unsigned long prot, unsigned long pgoff, 797 unsigned long flags); 798 asmlinkage long sys_mbind(unsigned long start, unsigned long len, 799 unsigned long mode, 800 const unsigned long __user *nmask, 801 unsigned long maxnode, 802 unsigned flags); 803 asmlinkage long sys_get_mempolicy(int __user *policy, 804 unsigned long __user *nmask, 805 unsigned long maxnode, 806 unsigned long addr, unsigned long flags); 807 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask, 808 unsigned long maxnode); 809 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode, 810 const unsigned long __user *from, 811 const unsigned long __user *to); 812 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages, 813 const void __user * __user *pages, 814 const int __user *nodes, 815 int __user *status, 816 int flags); 817 818 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, 819 siginfo_t __user *uinfo); 820 asmlinkage long sys_perf_event_open( 821 struct perf_event_attr __user *attr_uptr, 822 pid_t pid, int cpu, int group_fd, unsigned long flags); 823 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int); 824 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg, 825 unsigned int vlen, unsigned flags, 826 struct timespec __user *timeout); 827 828 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr, 829 int options, struct rusage __user *ru); 830 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource, 831 const struct rlimit64 __user *new_rlim, 832 struct rlimit64 __user *old_rlim); 833 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags); 834 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags, 835 u64 mask, int fd, 836 const char __user *pathname); 837 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name, 838 struct file_handle __user *handle, 839 int __user *mnt_id, int flag); 840 asmlinkage long sys_open_by_handle_at(int mountdirfd, 841 struct file_handle __user *handle, 842 int flags); 843 asmlinkage long sys_clock_adjtime(clockid_t which_clock, 844 struct timex __user *tx); 845 asmlinkage long sys_syncfs(int fd); 846 asmlinkage long sys_setns(int fd, int nstype); 847 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg, 848 unsigned int vlen, unsigned flags); 849 asmlinkage long sys_process_vm_readv(pid_t pid, 850 const struct iovec __user *lvec, 851 unsigned long liovcnt, 852 const struct iovec __user *rvec, 853 unsigned long riovcnt, 854 unsigned long flags); 855 asmlinkage long sys_process_vm_writev(pid_t pid, 856 const struct iovec __user *lvec, 857 unsigned long liovcnt, 858 const struct iovec __user *rvec, 859 unsigned long riovcnt, 860 unsigned long flags); 861 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type, 862 unsigned long idx1, unsigned long idx2); 863 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags); 864 asmlinkage long sys_sched_setattr(pid_t pid, 865 struct sched_attr __user *attr, 866 unsigned int flags); 867 asmlinkage long sys_sched_getattr(pid_t pid, 868 struct sched_attr __user *attr, 869 unsigned int size, 870 unsigned int flags); 871 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname, 872 int newdfd, const char __user *newname, 873 unsigned int flags); 874 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, 875 const char __user *uargs); 876 asmlinkage long sys_getrandom(char __user *buf, size_t count, 877 unsigned int flags); 878 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags); 879 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size); 880 asmlinkage long sys_execveat(int dfd, const char __user *filename, 881 const char __user *const __user *argv, 882 const char __user *const __user *envp, int flags); 883 asmlinkage long sys_userfaultfd(int flags); 884 asmlinkage long sys_membarrier(int cmd, int flags); 885 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags); 886 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in, 887 int fd_out, loff_t __user *off_out, 888 size_t len, unsigned int flags); 889 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec, 890 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 891 rwf_t flags); 892 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec, 893 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 894 rwf_t flags); 895 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len, 896 unsigned long prot, int pkey); 897 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val); 898 asmlinkage long sys_pkey_free(int pkey); 899 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags, 900 unsigned mask, struct statx __user *buffer); 901 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len, 902 int flags, uint32_t sig); 903 904 /* 905 * Architecture-specific system calls 906 */ 907 908 /* arch/x86/kernel/ioport.c */ 909 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); 910 911 /* pciconfig: alpha, arm, arm64, ia64, sparc */ 912 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn, 913 unsigned long off, unsigned long len, 914 void __user *buf); 915 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn, 916 unsigned long off, unsigned long len, 917 void __user *buf); 918 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn); 919 920 /* powerpc */ 921 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc, 922 __u32 __user *ustatus); 923 asmlinkage long sys_spu_create(const char __user *name, 924 unsigned int flags, umode_t mode, int fd); 925 926 927 /* 928 * Deprecated system calls which are still defined in 929 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch 930 */ 931 932 /* __ARCH_WANT_SYSCALL_NO_AT */ 933 asmlinkage long sys_open(const char __user *filename, 934 int flags, umode_t mode); 935 asmlinkage long sys_link(const char __user *oldname, 936 const char __user *newname); 937 asmlinkage long sys_unlink(const char __user *pathname); 938 asmlinkage long sys_mknod(const char __user *filename, umode_t mode, 939 unsigned dev); 940 asmlinkage long sys_chmod(const char __user *filename, umode_t mode); 941 asmlinkage long sys_chown(const char __user *filename, 942 uid_t user, gid_t group); 943 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode); 944 asmlinkage long sys_rmdir(const char __user *pathname); 945 asmlinkage long sys_lchown(const char __user *filename, 946 uid_t user, gid_t group); 947 asmlinkage long sys_access(const char __user *filename, int mode); 948 asmlinkage long sys_rename(const char __user *oldname, 949 const char __user *newname); 950 asmlinkage long sys_symlink(const char __user *old, const char __user *new); 951 asmlinkage long sys_utimes(char __user *filename, 952 struct timeval __user *utimes); 953 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 954 asmlinkage long sys_stat64(const char __user *filename, 955 struct stat64 __user *statbuf); 956 asmlinkage long sys_lstat64(const char __user *filename, 957 struct stat64 __user *statbuf); 958 #endif 959 960 /* __ARCH_WANT_SYSCALL_NO_FLAGS */ 961 asmlinkage long sys_pipe(int __user *fildes); 962 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd); 963 asmlinkage long sys_epoll_create(int size); 964 asmlinkage long sys_inotify_init(void); 965 asmlinkage long sys_eventfd(unsigned int count); 966 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask); 967 968 /* __ARCH_WANT_SYSCALL_OFF_T */ 969 asmlinkage long sys_sendfile(int out_fd, int in_fd, 970 off_t __user *offset, size_t count); 971 asmlinkage long sys_newstat(const char __user *filename, 972 struct stat __user *statbuf); 973 asmlinkage long sys_newlstat(const char __user *filename, 974 struct stat __user *statbuf); 975 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice); 976 977 /* __ARCH_WANT_SYSCALL_DEPRECATED */ 978 asmlinkage long sys_alarm(unsigned int seconds); 979 asmlinkage long sys_getpgrp(void); 980 asmlinkage long sys_pause(void); 981 asmlinkage long sys_time(time_t __user *tloc); 982 asmlinkage long sys_utime(char __user *filename, 983 struct utimbuf __user *times); 984 asmlinkage long sys_creat(const char __user *pathname, umode_t mode); 985 asmlinkage long sys_getdents(unsigned int fd, 986 struct linux_dirent __user *dirent, 987 unsigned int count); 988 asmlinkage long sys_futimesat(int dfd, const char __user *filename, 989 struct timeval __user *utimes); 990 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp, 991 fd_set __user *exp, struct timeval __user *tvp); 992 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds, 993 int timeout); 994 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, 995 int maxevents, int timeout); 996 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf); 997 asmlinkage long sys_vfork(void); 998 asmlinkage long sys_recv(int, void __user *, size_t, unsigned); 999 asmlinkage long sys_send(int, void __user *, size_t, unsigned); 1000 asmlinkage long sys_bdflush(int func, long data); 1001 asmlinkage long sys_oldumount(char __user *name); 1002 asmlinkage long sys_uselib(const char __user *library); 1003 asmlinkage long sys_sysctl(struct __sysctl_args __user *args); 1004 asmlinkage long sys_sysfs(int option, 1005 unsigned long arg1, unsigned long arg2); 1006 asmlinkage long sys_fork(void); 1007 1008 /* obsolete: kernel/time/time.c */ 1009 asmlinkage long sys_stime(time_t __user *tptr); 1010 1011 /* obsolete: kernel/signal.c */ 1012 asmlinkage long sys_sigpending(old_sigset_t __user *uset); 1013 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set, 1014 old_sigset_t __user *oset); 1015 #ifdef CONFIG_OLD_SIGSUSPEND 1016 asmlinkage long sys_sigsuspend(old_sigset_t mask); 1017 #endif 1018 1019 #ifdef CONFIG_OLD_SIGSUSPEND3 1020 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask); 1021 #endif 1022 1023 #ifdef CONFIG_OLD_SIGACTION 1024 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *, 1025 struct old_sigaction __user *); 1026 #endif 1027 asmlinkage long sys_sgetmask(void); 1028 asmlinkage long sys_ssetmask(int newmask); 1029 asmlinkage long sys_signal(int sig, __sighandler_t handler); 1030 1031 /* obsolete: kernel/sched/core.c */ 1032 asmlinkage long sys_nice(int increment); 1033 1034 /* obsolete: kernel/kexec_file.c */ 1035 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd, 1036 unsigned long cmdline_len, 1037 const char __user *cmdline_ptr, 1038 unsigned long flags); 1039 1040 /* obsolete: kernel/exit.c */ 1041 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options); 1042 1043 /* obsolete: kernel/uid16.c */ 1044 #ifdef CONFIG_HAVE_UID16 1045 asmlinkage long sys_chown16(const char __user *filename, 1046 old_uid_t user, old_gid_t group); 1047 asmlinkage long sys_lchown16(const char __user *filename, 1048 old_uid_t user, old_gid_t group); 1049 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group); 1050 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid); 1051 asmlinkage long sys_setgid16(old_gid_t gid); 1052 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid); 1053 asmlinkage long sys_setuid16(old_uid_t uid); 1054 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid); 1055 asmlinkage long sys_getresuid16(old_uid_t __user *ruid, 1056 old_uid_t __user *euid, old_uid_t __user *suid); 1057 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid); 1058 asmlinkage long sys_getresgid16(old_gid_t __user *rgid, 1059 old_gid_t __user *egid, old_gid_t __user *sgid); 1060 asmlinkage long sys_setfsuid16(old_uid_t uid); 1061 asmlinkage long sys_setfsgid16(old_gid_t gid); 1062 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist); 1063 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist); 1064 asmlinkage long sys_getuid16(void); 1065 asmlinkage long sys_geteuid16(void); 1066 asmlinkage long sys_getgid16(void); 1067 asmlinkage long sys_getegid16(void); 1068 #endif 1069 1070 /* obsolete: net/socket.c */ 1071 asmlinkage long sys_socketcall(int call, unsigned long __user *args); 1072 1073 /* obsolete: fs/stat.c */ 1074 asmlinkage long sys_stat(const char __user *filename, 1075 struct __old_kernel_stat __user *statbuf); 1076 asmlinkage long sys_lstat(const char __user *filename, 1077 struct __old_kernel_stat __user *statbuf); 1078 asmlinkage long sys_fstat(unsigned int fd, 1079 struct __old_kernel_stat __user *statbuf); 1080 asmlinkage long sys_readlink(const char __user *path, 1081 char __user *buf, int bufsiz); 1082 1083 /* obsolete: fs/select.c */ 1084 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg); 1085 1086 /* obsolete: fs/readdir.c */ 1087 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int); 1088 1089 /* obsolete: kernel/sys.c */ 1090 asmlinkage long sys_gethostname(char __user *name, int len); 1091 asmlinkage long sys_uname(struct old_utsname __user *); 1092 asmlinkage long sys_olduname(struct oldold_utsname __user *); 1093 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT 1094 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim); 1095 #endif 1096 1097 /* obsolete: ipc */ 1098 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second, 1099 unsigned long third, void __user *ptr, long fifth); 1100 1101 /* obsolete: mm/ */ 1102 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len, 1103 unsigned long prot, unsigned long flags, 1104 unsigned long fd, unsigned long pgoff); 1105 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg); 1106 1107 1108 /* 1109 * Not a real system call, but a placeholder for syscalls which are 1110 * not implemented -- see kernel/sys_ni.c 1111 */ 1112 asmlinkage long sys_ni_syscall(void); 1113 1114 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 1115 1116 1117 /* 1118 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly. 1119 * Instead, use one of the functions which work equivalently, such as 1120 * the ksys_xyzyyz() functions prototyped below. 1121 */ 1122 1123 int ksys_mount(char __user *dev_name, char __user *dir_name, char __user *type, 1124 unsigned long flags, void __user *data); 1125 int ksys_umount(char __user *name, int flags); 1126 int ksys_dup(unsigned int fildes); 1127 int ksys_chroot(const char __user *filename); 1128 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count); 1129 int ksys_chdir(const char __user *filename); 1130 int ksys_fchmod(unsigned int fd, umode_t mode); 1131 int ksys_fchown(unsigned int fd, uid_t user, gid_t group); 1132 int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent, 1133 unsigned int count); 1134 int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg); 1135 off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence); 1136 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count); 1137 void ksys_sync(void); 1138 int ksys_unshare(unsigned long unshare_flags); 1139 int ksys_setsid(void); 1140 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 1141 unsigned int flags); 1142 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count, 1143 loff_t pos); 1144 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf, 1145 size_t count, loff_t pos); 1146 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len); 1147 #ifdef CONFIG_ADVISE_SYSCALLS 1148 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 1149 #else 1150 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, 1151 int advice) 1152 { 1153 return -EINVAL; 1154 } 1155 #endif 1156 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len, 1157 unsigned long prot, unsigned long flags, 1158 unsigned long fd, unsigned long pgoff); 1159 ssize_t ksys_readahead(int fd, loff_t offset, size_t count); 1160 1161 /* 1162 * The following kernel syscall equivalents are just wrappers to fs-internal 1163 * functions. Therefore, provide stubs to be inlined at the callsites. 1164 */ 1165 extern long do_unlinkat(int dfd, struct filename *name); 1166 1167 static inline long ksys_unlink(const char __user *pathname) 1168 { 1169 return do_unlinkat(AT_FDCWD, getname(pathname)); 1170 } 1171 1172 extern long do_rmdir(int dfd, const char __user *pathname); 1173 1174 static inline long ksys_rmdir(const char __user *pathname) 1175 { 1176 return do_rmdir(AT_FDCWD, pathname); 1177 } 1178 1179 extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode); 1180 1181 static inline long ksys_mkdir(const char __user *pathname, umode_t mode) 1182 { 1183 return do_mkdirat(AT_FDCWD, pathname, mode); 1184 } 1185 1186 extern long do_symlinkat(const char __user *oldname, int newdfd, 1187 const char __user *newname); 1188 1189 static inline long ksys_symlink(const char __user *oldname, 1190 const char __user *newname) 1191 { 1192 return do_symlinkat(oldname, AT_FDCWD, newname); 1193 } 1194 1195 extern long do_mknodat(int dfd, const char __user *filename, umode_t mode, 1196 unsigned int dev); 1197 1198 static inline long ksys_mknod(const char __user *filename, umode_t mode, 1199 unsigned int dev) 1200 { 1201 return do_mknodat(AT_FDCWD, filename, mode, dev); 1202 } 1203 1204 extern int do_linkat(int olddfd, const char __user *oldname, int newdfd, 1205 const char __user *newname, int flags); 1206 1207 static inline long ksys_link(const char __user *oldname, 1208 const char __user *newname) 1209 { 1210 return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0); 1211 } 1212 1213 extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode); 1214 1215 static inline int ksys_chmod(const char __user *filename, umode_t mode) 1216 { 1217 return do_fchmodat(AT_FDCWD, filename, mode); 1218 } 1219 1220 extern long do_faccessat(int dfd, const char __user *filename, int mode); 1221 1222 static inline long ksys_access(const char __user *filename, int mode) 1223 { 1224 return do_faccessat(AT_FDCWD, filename, mode); 1225 } 1226 1227 extern int do_fchownat(int dfd, const char __user *filename, uid_t user, 1228 gid_t group, int flag); 1229 1230 static inline long ksys_chown(const char __user *filename, uid_t user, 1231 gid_t group) 1232 { 1233 return do_fchownat(AT_FDCWD, filename, user, group, 0); 1234 } 1235 1236 static inline long ksys_lchown(const char __user *filename, uid_t user, 1237 gid_t group) 1238 { 1239 return do_fchownat(AT_FDCWD, filename, user, group, 1240 AT_SYMLINK_NOFOLLOW); 1241 } 1242 1243 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small); 1244 1245 static inline long ksys_ftruncate(unsigned int fd, unsigned long length) 1246 { 1247 return do_sys_ftruncate(fd, length, 1); 1248 } 1249 1250 extern int __close_fd(struct files_struct *files, unsigned int fd); 1251 1252 /* 1253 * In contrast to sys_close(), this stub does not check whether the syscall 1254 * should or should not be restarted, but returns the raw error codes from 1255 * __close_fd(). 1256 */ 1257 static inline int ksys_close(unsigned int fd) 1258 { 1259 return __close_fd(current->files, fd); 1260 } 1261 1262 extern long do_sys_open(int dfd, const char __user *filename, int flags, 1263 umode_t mode); 1264 1265 static inline long ksys_open(const char __user *filename, int flags, 1266 umode_t mode) 1267 { 1268 if (force_o_largefile()) 1269 flags |= O_LARGEFILE; 1270 return do_sys_open(AT_FDCWD, filename, flags, mode); 1271 } 1272 1273 extern long do_sys_truncate(const char __user *pathname, loff_t length); 1274 1275 static inline long ksys_truncate(const char __user *pathname, loff_t length) 1276 { 1277 return do_sys_truncate(pathname, length); 1278 } 1279 1280 #endif 1281