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 __aio_sigset; 15 struct epoll_event; 16 struct iattr; 17 struct inode; 18 struct iocb; 19 struct io_event; 20 struct iovec; 21 struct itimerspec; 22 struct itimerval; 23 struct kexec_segment; 24 struct linux_dirent; 25 struct linux_dirent64; 26 struct list_head; 27 struct mmap_arg_struct; 28 struct msgbuf; 29 struct user_msghdr; 30 struct mmsghdr; 31 struct msqid_ds; 32 struct new_utsname; 33 struct nfsctl_arg; 34 struct __old_kernel_stat; 35 struct oldold_utsname; 36 struct old_utsname; 37 struct pollfd; 38 struct rlimit; 39 struct rlimit64; 40 struct rusage; 41 struct sched_param; 42 struct sched_attr; 43 struct sel_arg_struct; 44 struct semaphore; 45 struct sembuf; 46 struct shmid_ds; 47 struct sockaddr; 48 struct stat; 49 struct stat64; 50 struct statfs; 51 struct statfs64; 52 struct statx; 53 struct __sysctl_args; 54 struct sysinfo; 55 struct timespec; 56 struct timeval; 57 struct __kernel_timex; 58 struct timezone; 59 struct tms; 60 struct utimbuf; 61 struct mq_attr; 62 struct compat_stat; 63 struct old_timeval32; 64 struct robust_list_head; 65 struct getcpu_cache; 66 struct old_linux_dirent; 67 struct perf_event_attr; 68 struct file_handle; 69 struct sigaltstack; 70 struct rseq; 71 union bpf_attr; 72 struct io_uring_params; 73 74 #include <linux/types.h> 75 #include <linux/aio_abi.h> 76 #include <linux/capability.h> 77 #include <linux/signal.h> 78 #include <linux/list.h> 79 #include <linux/bug.h> 80 #include <linux/sem.h> 81 #include <asm/siginfo.h> 82 #include <linux/unistd.h> 83 #include <linux/quota.h> 84 #include <linux/key.h> 85 #include <linux/personality.h> 86 #include <trace/syscall.h> 87 88 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 89 /* 90 * It may be useful for an architecture to override the definitions of the 91 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a 92 * different calling convention for syscalls. To allow for that, the prototypes 93 * for the sys_*() functions below will *not* be included if 94 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 95 */ 96 #include <asm/syscall_wrapper.h> 97 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 98 99 /* 100 * __MAP - apply a macro to syscall arguments 101 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to 102 * m(t1, a1), m(t2, a2), ..., m(tn, an) 103 * The first argument must be equal to the amount of type/name 104 * pairs given. Note that this list of pairs (i.e. the arguments 105 * of __MAP starting at the third one) is in the same format as 106 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n> 107 */ 108 #define __MAP0(m,...) 109 #define __MAP1(m,t,a,...) m(t,a) 110 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__) 111 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__) 112 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__) 113 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__) 114 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__) 115 #define __MAP(n,...) __MAP##n(__VA_ARGS__) 116 117 #define __SC_DECL(t, a) t a 118 #define __TYPE_AS(t, v) __same_type((__force t)0, v) 119 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L)) 120 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL)) 121 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL)) 122 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a 123 #define __SC_CAST(t, a) (__force t) a 124 #define __SC_ARGS(t, a) a 125 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long)) 126 127 #ifdef CONFIG_FTRACE_SYSCALLS 128 #define __SC_STR_ADECL(t, a) #a 129 #define __SC_STR_TDECL(t, a) #t 130 131 extern struct trace_event_class event_class_syscall_enter; 132 extern struct trace_event_class event_class_syscall_exit; 133 extern struct trace_event_functions enter_syscall_print_funcs; 134 extern struct trace_event_functions exit_syscall_print_funcs; 135 136 #define SYSCALL_TRACE_ENTER_EVENT(sname) \ 137 static struct syscall_metadata __syscall_meta_##sname; \ 138 static struct trace_event_call __used \ 139 event_enter_##sname = { \ 140 .class = &event_class_syscall_enter, \ 141 { \ 142 .name = "sys_enter"#sname, \ 143 }, \ 144 .event.funcs = &enter_syscall_print_funcs, \ 145 .data = (void *)&__syscall_meta_##sname,\ 146 .flags = TRACE_EVENT_FL_CAP_ANY, \ 147 }; \ 148 static struct trace_event_call __used \ 149 __attribute__((section("_ftrace_events"))) \ 150 *__event_enter_##sname = &event_enter_##sname; 151 152 #define SYSCALL_TRACE_EXIT_EVENT(sname) \ 153 static struct syscall_metadata __syscall_meta_##sname; \ 154 static struct trace_event_call __used \ 155 event_exit_##sname = { \ 156 .class = &event_class_syscall_exit, \ 157 { \ 158 .name = "sys_exit"#sname, \ 159 }, \ 160 .event.funcs = &exit_syscall_print_funcs, \ 161 .data = (void *)&__syscall_meta_##sname,\ 162 .flags = TRACE_EVENT_FL_CAP_ANY, \ 163 }; \ 164 static struct trace_event_call __used \ 165 __attribute__((section("_ftrace_events"))) \ 166 *__event_exit_##sname = &event_exit_##sname; 167 168 #define SYSCALL_METADATA(sname, nb, ...) \ 169 static const char *types_##sname[] = { \ 170 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \ 171 }; \ 172 static const char *args_##sname[] = { \ 173 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \ 174 }; \ 175 SYSCALL_TRACE_ENTER_EVENT(sname); \ 176 SYSCALL_TRACE_EXIT_EVENT(sname); \ 177 static struct syscall_metadata __used \ 178 __syscall_meta_##sname = { \ 179 .name = "sys"#sname, \ 180 .syscall_nr = -1, /* Filled in at boot */ \ 181 .nb_args = nb, \ 182 .types = nb ? types_##sname : NULL, \ 183 .args = nb ? args_##sname : NULL, \ 184 .enter_event = &event_enter_##sname, \ 185 .exit_event = &event_exit_##sname, \ 186 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \ 187 }; \ 188 static struct syscall_metadata __used \ 189 __attribute__((section("__syscalls_metadata"))) \ 190 *__p_syscall_meta_##sname = &__syscall_meta_##sname; 191 192 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 193 { 194 return tp_event->class == &event_class_syscall_enter || 195 tp_event->class == &event_class_syscall_exit; 196 } 197 198 #else 199 #define SYSCALL_METADATA(sname, nb, ...) 200 201 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 202 { 203 return 0; 204 } 205 #endif 206 207 #ifndef SYSCALL_DEFINE0 208 #define SYSCALL_DEFINE0(sname) \ 209 SYSCALL_METADATA(_##sname, 0); \ 210 asmlinkage long sys_##sname(void); \ 211 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \ 212 asmlinkage long sys_##sname(void) 213 #endif /* SYSCALL_DEFINE0 */ 214 215 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__) 216 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__) 217 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) 218 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__) 219 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) 220 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) 221 222 #define SYSCALL_DEFINE_MAXARGS 6 223 224 #define SYSCALL_DEFINEx(x, sname, ...) \ 225 SYSCALL_METADATA(sname, x, __VA_ARGS__) \ 226 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) 227 228 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__) 229 230 /* 231 * The asmlinkage stub is aliased to a function named __se_sys_*() which 232 * sign-extends 32-bit ints to longs whenever needed. The actual work is 233 * done within __do_sys_*(). 234 */ 235 #ifndef __SYSCALL_DEFINEx 236 #define __SYSCALL_DEFINEx(x, name, ...) \ 237 __diag_push(); \ 238 __diag_ignore(GCC, 8, "-Wattribute-alias", \ 239 "Type aliasing is used to sanitize syscall arguments");\ 240 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ 241 __attribute__((alias(__stringify(__se_sys##name)))); \ 242 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \ 243 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ 244 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ 245 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ 246 { \ 247 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\ 248 __MAP(x,__SC_TEST,__VA_ARGS__); \ 249 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \ 250 return ret; \ 251 } \ 252 __diag_pop(); \ 253 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) 254 #endif /* __SYSCALL_DEFINEx */ 255 256 /* 257 * Called before coming back to user-mode. Returning to user-mode with an 258 * address limit different than USER_DS can allow to overwrite kernel memory. 259 */ 260 static inline void addr_limit_user_check(void) 261 { 262 #ifdef TIF_FSCHECK 263 if (!test_thread_flag(TIF_FSCHECK)) 264 return; 265 #endif 266 267 if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS), 268 "Invalid address limit on user-mode return")) 269 force_sig(SIGKILL, current); 270 271 #ifdef TIF_FSCHECK 272 clear_thread_flag(TIF_FSCHECK); 273 #endif 274 } 275 276 /* 277 * These syscall function prototypes are kept in the same order as 278 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below, 279 * followed by deprecated or obsolete system calls. 280 * 281 * Please note that these prototypes here are only provided for information 282 * purposes, for static analysis, and for linking from the syscall table. 283 * These functions should not be called elsewhere from kernel code. 284 * 285 * As the syscall calling convention may be different from the default 286 * for architectures overriding the syscall calling convention, do not 287 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 288 */ 289 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 290 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx); 291 asmlinkage long sys_io_destroy(aio_context_t ctx); 292 asmlinkage long sys_io_submit(aio_context_t, long, 293 struct iocb __user * __user *); 294 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb, 295 struct io_event __user *result); 296 asmlinkage long sys_io_getevents(aio_context_t ctx_id, 297 long min_nr, 298 long nr, 299 struct io_event __user *events, 300 struct __kernel_timespec __user *timeout); 301 asmlinkage long sys_io_getevents_time32(__u32 ctx_id, 302 __s32 min_nr, 303 __s32 nr, 304 struct io_event __user *events, 305 struct old_timespec32 __user *timeout); 306 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id, 307 long min_nr, 308 long nr, 309 struct io_event __user *events, 310 struct __kernel_timespec __user *timeout, 311 const struct __aio_sigset *sig); 312 asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id, 313 long min_nr, 314 long nr, 315 struct io_event __user *events, 316 struct old_timespec32 __user *timeout, 317 const struct __aio_sigset *sig); 318 asmlinkage long sys_io_uring_setup(u32 entries, 319 struct io_uring_params __user *p); 320 asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit, 321 u32 min_complete, u32 flags, 322 const sigset_t __user *sig, size_t sigsz); 323 asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op, 324 void __user *arg, unsigned int nr_args); 325 326 /* fs/xattr.c */ 327 asmlinkage long sys_setxattr(const char __user *path, const char __user *name, 328 const void __user *value, size_t size, int flags); 329 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name, 330 const void __user *value, size_t size, int flags); 331 asmlinkage long sys_fsetxattr(int fd, const char __user *name, 332 const void __user *value, size_t size, int flags); 333 asmlinkage long sys_getxattr(const char __user *path, const char __user *name, 334 void __user *value, size_t size); 335 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name, 336 void __user *value, size_t size); 337 asmlinkage long sys_fgetxattr(int fd, const char __user *name, 338 void __user *value, size_t size); 339 asmlinkage long sys_listxattr(const char __user *path, char __user *list, 340 size_t size); 341 asmlinkage long sys_llistxattr(const char __user *path, char __user *list, 342 size_t size); 343 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size); 344 asmlinkage long sys_removexattr(const char __user *path, 345 const char __user *name); 346 asmlinkage long sys_lremovexattr(const char __user *path, 347 const char __user *name); 348 asmlinkage long sys_fremovexattr(int fd, const char __user *name); 349 350 /* fs/dcache.c */ 351 asmlinkage long sys_getcwd(char __user *buf, unsigned long size); 352 353 /* fs/cookies.c */ 354 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len); 355 356 /* fs/eventfd.c */ 357 asmlinkage long sys_eventfd2(unsigned int count, int flags); 358 359 /* fs/eventpoll.c */ 360 asmlinkage long sys_epoll_create1(int flags); 361 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, 362 struct epoll_event __user *event); 363 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events, 364 int maxevents, int timeout, 365 const sigset_t __user *sigmask, 366 size_t sigsetsize); 367 368 /* fs/fcntl.c */ 369 asmlinkage long sys_dup(unsigned int fildes); 370 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags); 371 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); 372 #if BITS_PER_LONG == 32 373 asmlinkage long sys_fcntl64(unsigned int fd, 374 unsigned int cmd, unsigned long arg); 375 #endif 376 377 /* fs/inotify_user.c */ 378 asmlinkage long sys_inotify_init1(int flags); 379 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, 380 u32 mask); 381 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd); 382 383 /* fs/ioctl.c */ 384 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, 385 unsigned long arg); 386 387 /* fs/ioprio.c */ 388 asmlinkage long sys_ioprio_set(int which, int who, int ioprio); 389 asmlinkage long sys_ioprio_get(int which, int who); 390 391 /* fs/locks.c */ 392 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd); 393 394 /* fs/namei.c */ 395 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode, 396 unsigned dev); 397 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode); 398 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag); 399 asmlinkage long sys_symlinkat(const char __user * oldname, 400 int newdfd, const char __user * newname); 401 asmlinkage long sys_linkat(int olddfd, const char __user *oldname, 402 int newdfd, const char __user *newname, int flags); 403 asmlinkage long sys_renameat(int olddfd, const char __user * oldname, 404 int newdfd, const char __user * newname); 405 406 /* fs/namespace.c */ 407 asmlinkage long sys_umount(char __user *name, int flags); 408 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name, 409 char __user *type, unsigned long flags, 410 void __user *data); 411 asmlinkage long sys_pivot_root(const char __user *new_root, 412 const char __user *put_old); 413 414 /* fs/nfsctl.c */ 415 416 /* fs/open.c */ 417 asmlinkage long sys_statfs(const char __user * path, 418 struct statfs __user *buf); 419 asmlinkage long sys_statfs64(const char __user *path, size_t sz, 420 struct statfs64 __user *buf); 421 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf); 422 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz, 423 struct statfs64 __user *buf); 424 asmlinkage long sys_truncate(const char __user *path, long length); 425 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length); 426 #if BITS_PER_LONG == 32 427 asmlinkage long sys_truncate64(const char __user *path, loff_t length); 428 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length); 429 #endif 430 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len); 431 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode); 432 asmlinkage long sys_chdir(const char __user *filename); 433 asmlinkage long sys_fchdir(unsigned int fd); 434 asmlinkage long sys_chroot(const char __user *filename); 435 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode); 436 asmlinkage long sys_fchmodat(int dfd, const char __user * filename, 437 umode_t mode); 438 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user, 439 gid_t group, int flag); 440 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group); 441 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags, 442 umode_t mode); 443 asmlinkage long sys_close(unsigned int fd); 444 asmlinkage long sys_vhangup(void); 445 446 /* fs/pipe.c */ 447 asmlinkage long sys_pipe2(int __user *fildes, int flags); 448 449 /* fs/quota.c */ 450 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special, 451 qid_t id, void __user *addr); 452 453 /* fs/readdir.c */ 454 asmlinkage long sys_getdents64(unsigned int fd, 455 struct linux_dirent64 __user *dirent, 456 unsigned int count); 457 458 /* fs/read_write.c */ 459 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high, 460 unsigned long offset_low, loff_t __user *result, 461 unsigned int whence); 462 asmlinkage long sys_lseek(unsigned int fd, off_t offset, 463 unsigned int whence); 464 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count); 465 asmlinkage long sys_write(unsigned int fd, const char __user *buf, 466 size_t count); 467 asmlinkage long sys_readv(unsigned long fd, 468 const struct iovec __user *vec, 469 unsigned long vlen); 470 asmlinkage long sys_writev(unsigned long fd, 471 const struct iovec __user *vec, 472 unsigned long vlen); 473 asmlinkage long sys_pread64(unsigned int fd, char __user *buf, 474 size_t count, loff_t pos); 475 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf, 476 size_t count, loff_t pos); 477 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec, 478 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 479 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec, 480 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 481 482 /* fs/sendfile.c */ 483 asmlinkage long sys_sendfile64(int out_fd, int in_fd, 484 loff_t __user *offset, size_t count); 485 486 /* fs/select.c */ 487 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *, 488 fd_set __user *, struct __kernel_timespec __user *, 489 void __user *); 490 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *, 491 fd_set __user *, struct old_timespec32 __user *, 492 void __user *); 493 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int, 494 struct __kernel_timespec __user *, const sigset_t __user *, 495 size_t); 496 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int, 497 struct old_timespec32 __user *, const sigset_t __user *, 498 size_t); 499 500 /* fs/signalfd.c */ 501 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags); 502 503 /* fs/splice.c */ 504 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov, 505 unsigned long nr_segs, unsigned int flags); 506 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in, 507 int fd_out, loff_t __user *off_out, 508 size_t len, unsigned int flags); 509 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags); 510 511 /* fs/stat.c */ 512 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf, 513 int bufsiz); 514 asmlinkage long sys_newfstatat(int dfd, const char __user *filename, 515 struct stat __user *statbuf, int flag); 516 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf); 517 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 518 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf); 519 asmlinkage long sys_fstatat64(int dfd, const char __user *filename, 520 struct stat64 __user *statbuf, int flag); 521 #endif 522 523 /* fs/sync.c */ 524 asmlinkage long sys_sync(void); 525 asmlinkage long sys_fsync(unsigned int fd); 526 asmlinkage long sys_fdatasync(unsigned int fd); 527 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags, 528 loff_t offset, loff_t nbytes); 529 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 530 unsigned int flags); 531 532 /* fs/timerfd.c */ 533 asmlinkage long sys_timerfd_create(int clockid, int flags); 534 asmlinkage long sys_timerfd_settime(int ufd, int flags, 535 const struct __kernel_itimerspec __user *utmr, 536 struct __kernel_itimerspec __user *otmr); 537 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr); 538 asmlinkage long sys_timerfd_gettime32(int ufd, 539 struct old_itimerspec32 __user *otmr); 540 asmlinkage long sys_timerfd_settime32(int ufd, int flags, 541 const struct old_itimerspec32 __user *utmr, 542 struct old_itimerspec32 __user *otmr); 543 544 /* fs/utimes.c */ 545 asmlinkage long sys_utimensat(int dfd, const char __user *filename, 546 struct __kernel_timespec __user *utimes, 547 int flags); 548 asmlinkage long sys_utimensat_time32(unsigned int dfd, 549 const char __user *filename, 550 struct old_timespec32 __user *t, int flags); 551 552 /* kernel/acct.c */ 553 asmlinkage long sys_acct(const char __user *name); 554 555 /* kernel/capability.c */ 556 asmlinkage long sys_capget(cap_user_header_t header, 557 cap_user_data_t dataptr); 558 asmlinkage long sys_capset(cap_user_header_t header, 559 const cap_user_data_t data); 560 561 /* kernel/exec_domain.c */ 562 asmlinkage long sys_personality(unsigned int personality); 563 564 /* kernel/exit.c */ 565 asmlinkage long sys_exit(int error_code); 566 asmlinkage long sys_exit_group(int error_code); 567 asmlinkage long sys_waitid(int which, pid_t pid, 568 struct siginfo __user *infop, 569 int options, struct rusage __user *ru); 570 571 /* kernel/fork.c */ 572 asmlinkage long sys_set_tid_address(int __user *tidptr); 573 asmlinkage long sys_unshare(unsigned long unshare_flags); 574 575 /* kernel/futex.c */ 576 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val, 577 struct __kernel_timespec __user *utime, u32 __user *uaddr2, 578 u32 val3); 579 asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val, 580 struct old_timespec32 __user *utime, u32 __user *uaddr2, 581 u32 val3); 582 asmlinkage long sys_get_robust_list(int pid, 583 struct robust_list_head __user * __user *head_ptr, 584 size_t __user *len_ptr); 585 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, 586 size_t len); 587 588 /* kernel/hrtimer.c */ 589 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp, 590 struct __kernel_timespec __user *rmtp); 591 asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp, 592 struct old_timespec32 __user *rmtp); 593 594 /* kernel/itimer.c */ 595 asmlinkage long sys_getitimer(int which, struct itimerval __user *value); 596 asmlinkage long sys_setitimer(int which, 597 struct itimerval __user *value, 598 struct itimerval __user *ovalue); 599 600 /* kernel/kexec.c */ 601 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments, 602 struct kexec_segment __user *segments, 603 unsigned long flags); 604 605 /* kernel/module.c */ 606 asmlinkage long sys_init_module(void __user *umod, unsigned long len, 607 const char __user *uargs); 608 asmlinkage long sys_delete_module(const char __user *name_user, 609 unsigned int flags); 610 611 /* kernel/posix-timers.c */ 612 asmlinkage long sys_timer_create(clockid_t which_clock, 613 struct sigevent __user *timer_event_spec, 614 timer_t __user * created_timer_id); 615 asmlinkage long sys_timer_gettime(timer_t timer_id, 616 struct __kernel_itimerspec __user *setting); 617 asmlinkage long sys_timer_getoverrun(timer_t timer_id); 618 asmlinkage long sys_timer_settime(timer_t timer_id, int flags, 619 const struct __kernel_itimerspec __user *new_setting, 620 struct __kernel_itimerspec __user *old_setting); 621 asmlinkage long sys_timer_delete(timer_t timer_id); 622 asmlinkage long sys_clock_settime(clockid_t which_clock, 623 const struct __kernel_timespec __user *tp); 624 asmlinkage long sys_clock_gettime(clockid_t which_clock, 625 struct __kernel_timespec __user *tp); 626 asmlinkage long sys_clock_getres(clockid_t which_clock, 627 struct __kernel_timespec __user *tp); 628 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags, 629 const struct __kernel_timespec __user *rqtp, 630 struct __kernel_timespec __user *rmtp); 631 asmlinkage long sys_timer_gettime32(timer_t timer_id, 632 struct old_itimerspec32 __user *setting); 633 asmlinkage long sys_timer_settime32(timer_t timer_id, int flags, 634 struct old_itimerspec32 __user *new, 635 struct old_itimerspec32 __user *old); 636 asmlinkage long sys_clock_settime32(clockid_t which_clock, 637 struct old_timespec32 __user *tp); 638 asmlinkage long sys_clock_gettime32(clockid_t which_clock, 639 struct old_timespec32 __user *tp); 640 asmlinkage long sys_clock_getres_time32(clockid_t which_clock, 641 struct old_timespec32 __user *tp); 642 asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags, 643 struct old_timespec32 __user *rqtp, 644 struct old_timespec32 __user *rmtp); 645 646 /* kernel/printk.c */ 647 asmlinkage long sys_syslog(int type, char __user *buf, int len); 648 649 /* kernel/ptrace.c */ 650 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, 651 unsigned long data); 652 /* kernel/sched/core.c */ 653 654 asmlinkage long sys_sched_setparam(pid_t pid, 655 struct sched_param __user *param); 656 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy, 657 struct sched_param __user *param); 658 asmlinkage long sys_sched_getscheduler(pid_t pid); 659 asmlinkage long sys_sched_getparam(pid_t pid, 660 struct sched_param __user *param); 661 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len, 662 unsigned long __user *user_mask_ptr); 663 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len, 664 unsigned long __user *user_mask_ptr); 665 asmlinkage long sys_sched_yield(void); 666 asmlinkage long sys_sched_get_priority_max(int policy); 667 asmlinkage long sys_sched_get_priority_min(int policy); 668 asmlinkage long sys_sched_rr_get_interval(pid_t pid, 669 struct __kernel_timespec __user *interval); 670 asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid, 671 struct old_timespec32 __user *interval); 672 673 /* kernel/signal.c */ 674 asmlinkage long sys_restart_syscall(void); 675 asmlinkage long sys_kill(pid_t pid, int sig); 676 asmlinkage long sys_tkill(pid_t pid, int sig); 677 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig); 678 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss, 679 struct sigaltstack __user *uoss); 680 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize); 681 #ifndef CONFIG_ODD_RT_SIGACTION 682 asmlinkage long sys_rt_sigaction(int, 683 const struct sigaction __user *, 684 struct sigaction __user *, 685 size_t); 686 #endif 687 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set, 688 sigset_t __user *oset, size_t sigsetsize); 689 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize); 690 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese, 691 siginfo_t __user *uinfo, 692 const struct __kernel_timespec __user *uts, 693 size_t sigsetsize); 694 asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese, 695 siginfo_t __user *uinfo, 696 const struct old_timespec32 __user *uts, 697 size_t sigsetsize); 698 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo); 699 700 /* kernel/sys.c */ 701 asmlinkage long sys_setpriority(int which, int who, int niceval); 702 asmlinkage long sys_getpriority(int which, int who); 703 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, 704 void __user *arg); 705 asmlinkage long sys_setregid(gid_t rgid, gid_t egid); 706 asmlinkage long sys_setgid(gid_t gid); 707 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid); 708 asmlinkage long sys_setuid(uid_t uid); 709 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid); 710 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid); 711 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid); 712 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid); 713 asmlinkage long sys_setfsuid(uid_t uid); 714 asmlinkage long sys_setfsgid(gid_t gid); 715 asmlinkage long sys_times(struct tms __user *tbuf); 716 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid); 717 asmlinkage long sys_getpgid(pid_t pid); 718 asmlinkage long sys_getsid(pid_t pid); 719 asmlinkage long sys_setsid(void); 720 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist); 721 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist); 722 asmlinkage long sys_newuname(struct new_utsname __user *name); 723 asmlinkage long sys_sethostname(char __user *name, int len); 724 asmlinkage long sys_setdomainname(char __user *name, int len); 725 asmlinkage long sys_getrlimit(unsigned int resource, 726 struct rlimit __user *rlim); 727 asmlinkage long sys_setrlimit(unsigned int resource, 728 struct rlimit __user *rlim); 729 asmlinkage long sys_getrusage(int who, struct rusage __user *ru); 730 asmlinkage long sys_umask(int mask); 731 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, 732 unsigned long arg4, unsigned long arg5); 733 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache); 734 735 /* kernel/time.c */ 736 asmlinkage long sys_gettimeofday(struct timeval __user *tv, 737 struct timezone __user *tz); 738 asmlinkage long sys_settimeofday(struct timeval __user *tv, 739 struct timezone __user *tz); 740 asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p); 741 asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p); 742 743 /* kernel/timer.c */ 744 asmlinkage long sys_getpid(void); 745 asmlinkage long sys_getppid(void); 746 asmlinkage long sys_getuid(void); 747 asmlinkage long sys_geteuid(void); 748 asmlinkage long sys_getgid(void); 749 asmlinkage long sys_getegid(void); 750 asmlinkage long sys_gettid(void); 751 asmlinkage long sys_sysinfo(struct sysinfo __user *info); 752 753 /* ipc/mqueue.c */ 754 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr); 755 asmlinkage long sys_mq_unlink(const char __user *name); 756 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); 757 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); 758 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification); 759 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat); 760 asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes, 761 char __user *u_msg_ptr, 762 unsigned int msg_len, unsigned int __user *u_msg_prio, 763 const struct old_timespec32 __user *u_abs_timeout); 764 asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes, 765 const char __user *u_msg_ptr, 766 unsigned int msg_len, unsigned int msg_prio, 767 const struct old_timespec32 __user *u_abs_timeout); 768 769 /* ipc/msg.c */ 770 asmlinkage long sys_msgget(key_t key, int msgflg); 771 asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 772 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 773 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp, 774 size_t msgsz, long msgtyp, int msgflg); 775 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp, 776 size_t msgsz, int msgflg); 777 778 /* ipc/sem.c */ 779 asmlinkage long sys_semget(key_t key, int nsems, int semflg); 780 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg); 781 asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg); 782 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops, 783 unsigned nsops, 784 const struct __kernel_timespec __user *timeout); 785 asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops, 786 unsigned nsops, 787 const struct old_timespec32 __user *timeout); 788 asmlinkage long sys_semop(int semid, struct sembuf __user *sops, 789 unsigned nsops); 790 791 /* ipc/shm.c */ 792 asmlinkage long sys_shmget(key_t key, size_t size, int flag); 793 asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 794 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 795 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg); 796 asmlinkage long sys_shmdt(char __user *shmaddr); 797 798 /* net/socket.c */ 799 asmlinkage long sys_socket(int, int, int); 800 asmlinkage long sys_socketpair(int, int, int, int __user *); 801 asmlinkage long sys_bind(int, struct sockaddr __user *, int); 802 asmlinkage long sys_listen(int, int); 803 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *); 804 asmlinkage long sys_connect(int, struct sockaddr __user *, int); 805 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *); 806 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *); 807 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned, 808 struct sockaddr __user *, int); 809 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned, 810 struct sockaddr __user *, int __user *); 811 asmlinkage long sys_setsockopt(int fd, int level, int optname, 812 char __user *optval, int optlen); 813 asmlinkage long sys_getsockopt(int fd, int level, int optname, 814 char __user *optval, int __user *optlen); 815 asmlinkage long sys_shutdown(int, int); 816 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 817 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 818 819 /* mm/filemap.c */ 820 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count); 821 822 /* mm/nommu.c, also with MMU */ 823 asmlinkage long sys_brk(unsigned long brk); 824 asmlinkage long sys_munmap(unsigned long addr, size_t len); 825 asmlinkage long sys_mremap(unsigned long addr, 826 unsigned long old_len, unsigned long new_len, 827 unsigned long flags, unsigned long new_addr); 828 829 /* security/keys/keyctl.c */ 830 asmlinkage long sys_add_key(const char __user *_type, 831 const char __user *_description, 832 const void __user *_payload, 833 size_t plen, 834 key_serial_t destringid); 835 asmlinkage long sys_request_key(const char __user *_type, 836 const char __user *_description, 837 const char __user *_callout_info, 838 key_serial_t destringid); 839 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3, 840 unsigned long arg4, unsigned long arg5); 841 842 /* arch/example/kernel/sys_example.c */ 843 #ifdef CONFIG_CLONE_BACKWARDS 844 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long, 845 int __user *); 846 #else 847 #ifdef CONFIG_CLONE_BACKWARDS3 848 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *, 849 int __user *, unsigned long); 850 #else 851 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, 852 int __user *, unsigned long); 853 #endif 854 #endif 855 asmlinkage long sys_execve(const char __user *filename, 856 const char __user *const __user *argv, 857 const char __user *const __user *envp); 858 859 /* mm/fadvise.c */ 860 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 861 862 /* mm/, CONFIG_MMU only */ 863 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags); 864 asmlinkage long sys_swapoff(const char __user *specialfile); 865 asmlinkage long sys_mprotect(unsigned long start, size_t len, 866 unsigned long prot); 867 asmlinkage long sys_msync(unsigned long start, size_t len, int flags); 868 asmlinkage long sys_mlock(unsigned long start, size_t len); 869 asmlinkage long sys_munlock(unsigned long start, size_t len); 870 asmlinkage long sys_mlockall(int flags); 871 asmlinkage long sys_munlockall(void); 872 asmlinkage long sys_mincore(unsigned long start, size_t len, 873 unsigned char __user * vec); 874 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior); 875 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, 876 unsigned long prot, unsigned long pgoff, 877 unsigned long flags); 878 asmlinkage long sys_mbind(unsigned long start, unsigned long len, 879 unsigned long mode, 880 const unsigned long __user *nmask, 881 unsigned long maxnode, 882 unsigned flags); 883 asmlinkage long sys_get_mempolicy(int __user *policy, 884 unsigned long __user *nmask, 885 unsigned long maxnode, 886 unsigned long addr, unsigned long flags); 887 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask, 888 unsigned long maxnode); 889 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode, 890 const unsigned long __user *from, 891 const unsigned long __user *to); 892 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages, 893 const void __user * __user *pages, 894 const int __user *nodes, 895 int __user *status, 896 int flags); 897 898 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, 899 siginfo_t __user *uinfo); 900 asmlinkage long sys_perf_event_open( 901 struct perf_event_attr __user *attr_uptr, 902 pid_t pid, int cpu, int group_fd, unsigned long flags); 903 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int); 904 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg, 905 unsigned int vlen, unsigned flags, 906 struct __kernel_timespec __user *timeout); 907 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg, 908 unsigned int vlen, unsigned flags, 909 struct old_timespec32 __user *timeout); 910 911 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr, 912 int options, struct rusage __user *ru); 913 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource, 914 const struct rlimit64 __user *new_rlim, 915 struct rlimit64 __user *old_rlim); 916 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags); 917 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags, 918 u64 mask, int fd, 919 const char __user *pathname); 920 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name, 921 struct file_handle __user *handle, 922 int __user *mnt_id, int flag); 923 asmlinkage long sys_open_by_handle_at(int mountdirfd, 924 struct file_handle __user *handle, 925 int flags); 926 asmlinkage long sys_clock_adjtime(clockid_t which_clock, 927 struct __kernel_timex __user *tx); 928 asmlinkage long sys_clock_adjtime32(clockid_t which_clock, 929 struct old_timex32 __user *tx); 930 asmlinkage long sys_syncfs(int fd); 931 asmlinkage long sys_setns(int fd, int nstype); 932 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg, 933 unsigned int vlen, unsigned flags); 934 asmlinkage long sys_process_vm_readv(pid_t pid, 935 const struct iovec __user *lvec, 936 unsigned long liovcnt, 937 const struct iovec __user *rvec, 938 unsigned long riovcnt, 939 unsigned long flags); 940 asmlinkage long sys_process_vm_writev(pid_t pid, 941 const struct iovec __user *lvec, 942 unsigned long liovcnt, 943 const struct iovec __user *rvec, 944 unsigned long riovcnt, 945 unsigned long flags); 946 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type, 947 unsigned long idx1, unsigned long idx2); 948 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags); 949 asmlinkage long sys_sched_setattr(pid_t pid, 950 struct sched_attr __user *attr, 951 unsigned int flags); 952 asmlinkage long sys_sched_getattr(pid_t pid, 953 struct sched_attr __user *attr, 954 unsigned int size, 955 unsigned int flags); 956 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname, 957 int newdfd, const char __user *newname, 958 unsigned int flags); 959 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, 960 void __user *uargs); 961 asmlinkage long sys_getrandom(char __user *buf, size_t count, 962 unsigned int flags); 963 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags); 964 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size); 965 asmlinkage long sys_execveat(int dfd, const char __user *filename, 966 const char __user *const __user *argv, 967 const char __user *const __user *envp, int flags); 968 asmlinkage long sys_userfaultfd(int flags); 969 asmlinkage long sys_membarrier(int cmd, int flags); 970 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags); 971 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in, 972 int fd_out, loff_t __user *off_out, 973 size_t len, unsigned int flags); 974 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec, 975 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 976 rwf_t flags); 977 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec, 978 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 979 rwf_t flags); 980 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len, 981 unsigned long prot, int pkey); 982 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val); 983 asmlinkage long sys_pkey_free(int pkey); 984 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags, 985 unsigned mask, struct statx __user *buffer); 986 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len, 987 int flags, uint32_t sig); 988 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig, 989 siginfo_t __user *info, 990 unsigned int flags); 991 992 /* 993 * Architecture-specific system calls 994 */ 995 996 /* arch/x86/kernel/ioport.c */ 997 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); 998 999 /* pciconfig: alpha, arm, arm64, ia64, sparc */ 1000 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn, 1001 unsigned long off, unsigned long len, 1002 void __user *buf); 1003 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn, 1004 unsigned long off, unsigned long len, 1005 void __user *buf); 1006 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn); 1007 1008 /* powerpc */ 1009 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc, 1010 __u32 __user *ustatus); 1011 asmlinkage long sys_spu_create(const char __user *name, 1012 unsigned int flags, umode_t mode, int fd); 1013 1014 1015 /* 1016 * Deprecated system calls which are still defined in 1017 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch 1018 */ 1019 1020 /* __ARCH_WANT_SYSCALL_NO_AT */ 1021 asmlinkage long sys_open(const char __user *filename, 1022 int flags, umode_t mode); 1023 asmlinkage long sys_link(const char __user *oldname, 1024 const char __user *newname); 1025 asmlinkage long sys_unlink(const char __user *pathname); 1026 asmlinkage long sys_mknod(const char __user *filename, umode_t mode, 1027 unsigned dev); 1028 asmlinkage long sys_chmod(const char __user *filename, umode_t mode); 1029 asmlinkage long sys_chown(const char __user *filename, 1030 uid_t user, gid_t group); 1031 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode); 1032 asmlinkage long sys_rmdir(const char __user *pathname); 1033 asmlinkage long sys_lchown(const char __user *filename, 1034 uid_t user, gid_t group); 1035 asmlinkage long sys_access(const char __user *filename, int mode); 1036 asmlinkage long sys_rename(const char __user *oldname, 1037 const char __user *newname); 1038 asmlinkage long sys_symlink(const char __user *old, const char __user *new); 1039 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 1040 asmlinkage long sys_stat64(const char __user *filename, 1041 struct stat64 __user *statbuf); 1042 asmlinkage long sys_lstat64(const char __user *filename, 1043 struct stat64 __user *statbuf); 1044 #endif 1045 1046 /* __ARCH_WANT_SYSCALL_NO_FLAGS */ 1047 asmlinkage long sys_pipe(int __user *fildes); 1048 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd); 1049 asmlinkage long sys_epoll_create(int size); 1050 asmlinkage long sys_inotify_init(void); 1051 asmlinkage long sys_eventfd(unsigned int count); 1052 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask); 1053 1054 /* __ARCH_WANT_SYSCALL_OFF_T */ 1055 asmlinkage long sys_sendfile(int out_fd, int in_fd, 1056 off_t __user *offset, size_t count); 1057 asmlinkage long sys_newstat(const char __user *filename, 1058 struct stat __user *statbuf); 1059 asmlinkage long sys_newlstat(const char __user *filename, 1060 struct stat __user *statbuf); 1061 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice); 1062 1063 /* __ARCH_WANT_SYSCALL_DEPRECATED */ 1064 asmlinkage long sys_alarm(unsigned int seconds); 1065 asmlinkage long sys_getpgrp(void); 1066 asmlinkage long sys_pause(void); 1067 asmlinkage long sys_time(time_t __user *tloc); 1068 asmlinkage long sys_time32(old_time32_t __user *tloc); 1069 #ifdef __ARCH_WANT_SYS_UTIME 1070 asmlinkage long sys_utime(char __user *filename, 1071 struct utimbuf __user *times); 1072 asmlinkage long sys_utimes(char __user *filename, 1073 struct timeval __user *utimes); 1074 asmlinkage long sys_futimesat(int dfd, const char __user *filename, 1075 struct timeval __user *utimes); 1076 #endif 1077 asmlinkage long sys_futimesat_time32(unsigned int dfd, 1078 const char __user *filename, 1079 struct old_timeval32 __user *t); 1080 asmlinkage long sys_utime32(const char __user *filename, 1081 struct old_utimbuf32 __user *t); 1082 asmlinkage long sys_utimes_time32(const char __user *filename, 1083 struct old_timeval32 __user *t); 1084 asmlinkage long sys_creat(const char __user *pathname, umode_t mode); 1085 asmlinkage long sys_getdents(unsigned int fd, 1086 struct linux_dirent __user *dirent, 1087 unsigned int count); 1088 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp, 1089 fd_set __user *exp, struct timeval __user *tvp); 1090 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds, 1091 int timeout); 1092 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, 1093 int maxevents, int timeout); 1094 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf); 1095 asmlinkage long sys_vfork(void); 1096 asmlinkage long sys_recv(int, void __user *, size_t, unsigned); 1097 asmlinkage long sys_send(int, void __user *, size_t, unsigned); 1098 asmlinkage long sys_bdflush(int func, long data); 1099 asmlinkage long sys_oldumount(char __user *name); 1100 asmlinkage long sys_uselib(const char __user *library); 1101 asmlinkage long sys_sysctl(struct __sysctl_args __user *args); 1102 asmlinkage long sys_sysfs(int option, 1103 unsigned long arg1, unsigned long arg2); 1104 asmlinkage long sys_fork(void); 1105 1106 /* obsolete: kernel/time/time.c */ 1107 asmlinkage long sys_stime(time_t __user *tptr); 1108 asmlinkage long sys_stime32(old_time32_t __user *tptr); 1109 1110 /* obsolete: kernel/signal.c */ 1111 asmlinkage long sys_sigpending(old_sigset_t __user *uset); 1112 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set, 1113 old_sigset_t __user *oset); 1114 #ifdef CONFIG_OLD_SIGSUSPEND 1115 asmlinkage long sys_sigsuspend(old_sigset_t mask); 1116 #endif 1117 1118 #ifdef CONFIG_OLD_SIGSUSPEND3 1119 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask); 1120 #endif 1121 1122 #ifdef CONFIG_OLD_SIGACTION 1123 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *, 1124 struct old_sigaction __user *); 1125 #endif 1126 asmlinkage long sys_sgetmask(void); 1127 asmlinkage long sys_ssetmask(int newmask); 1128 asmlinkage long sys_signal(int sig, __sighandler_t handler); 1129 1130 /* obsolete: kernel/sched/core.c */ 1131 asmlinkage long sys_nice(int increment); 1132 1133 /* obsolete: kernel/kexec_file.c */ 1134 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd, 1135 unsigned long cmdline_len, 1136 const char __user *cmdline_ptr, 1137 unsigned long flags); 1138 1139 /* obsolete: kernel/exit.c */ 1140 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options); 1141 1142 /* obsolete: kernel/uid16.c */ 1143 #ifdef CONFIG_HAVE_UID16 1144 asmlinkage long sys_chown16(const char __user *filename, 1145 old_uid_t user, old_gid_t group); 1146 asmlinkage long sys_lchown16(const char __user *filename, 1147 old_uid_t user, old_gid_t group); 1148 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group); 1149 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid); 1150 asmlinkage long sys_setgid16(old_gid_t gid); 1151 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid); 1152 asmlinkage long sys_setuid16(old_uid_t uid); 1153 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid); 1154 asmlinkage long sys_getresuid16(old_uid_t __user *ruid, 1155 old_uid_t __user *euid, old_uid_t __user *suid); 1156 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid); 1157 asmlinkage long sys_getresgid16(old_gid_t __user *rgid, 1158 old_gid_t __user *egid, old_gid_t __user *sgid); 1159 asmlinkage long sys_setfsuid16(old_uid_t uid); 1160 asmlinkage long sys_setfsgid16(old_gid_t gid); 1161 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist); 1162 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist); 1163 asmlinkage long sys_getuid16(void); 1164 asmlinkage long sys_geteuid16(void); 1165 asmlinkage long sys_getgid16(void); 1166 asmlinkage long sys_getegid16(void); 1167 #endif 1168 1169 /* obsolete: net/socket.c */ 1170 asmlinkage long sys_socketcall(int call, unsigned long __user *args); 1171 1172 /* obsolete: fs/stat.c */ 1173 asmlinkage long sys_stat(const char __user *filename, 1174 struct __old_kernel_stat __user *statbuf); 1175 asmlinkage long sys_lstat(const char __user *filename, 1176 struct __old_kernel_stat __user *statbuf); 1177 asmlinkage long sys_fstat(unsigned int fd, 1178 struct __old_kernel_stat __user *statbuf); 1179 asmlinkage long sys_readlink(const char __user *path, 1180 char __user *buf, int bufsiz); 1181 1182 /* obsolete: fs/select.c */ 1183 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg); 1184 1185 /* obsolete: fs/readdir.c */ 1186 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int); 1187 1188 /* obsolete: kernel/sys.c */ 1189 asmlinkage long sys_gethostname(char __user *name, int len); 1190 asmlinkage long sys_uname(struct old_utsname __user *); 1191 asmlinkage long sys_olduname(struct oldold_utsname __user *); 1192 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT 1193 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim); 1194 #endif 1195 1196 /* obsolete: ipc */ 1197 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second, 1198 unsigned long third, void __user *ptr, long fifth); 1199 1200 /* obsolete: mm/ */ 1201 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len, 1202 unsigned long prot, unsigned long flags, 1203 unsigned long fd, unsigned long pgoff); 1204 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg); 1205 1206 1207 /* 1208 * Not a real system call, but a placeholder for syscalls which are 1209 * not implemented -- see kernel/sys_ni.c 1210 */ 1211 asmlinkage long sys_ni_syscall(void); 1212 1213 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 1214 1215 1216 /* 1217 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly. 1218 * Instead, use one of the functions which work equivalently, such as 1219 * the ksys_xyzyyz() functions prototyped below. 1220 */ 1221 1222 int ksys_mount(char __user *dev_name, char __user *dir_name, char __user *type, 1223 unsigned long flags, void __user *data); 1224 int ksys_umount(char __user *name, int flags); 1225 int ksys_dup(unsigned int fildes); 1226 int ksys_chroot(const char __user *filename); 1227 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count); 1228 int ksys_chdir(const char __user *filename); 1229 int ksys_fchmod(unsigned int fd, umode_t mode); 1230 int ksys_fchown(unsigned int fd, uid_t user, gid_t group); 1231 int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent, 1232 unsigned int count); 1233 int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg); 1234 off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence); 1235 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count); 1236 void ksys_sync(void); 1237 int ksys_unshare(unsigned long unshare_flags); 1238 int ksys_setsid(void); 1239 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 1240 unsigned int flags); 1241 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count, 1242 loff_t pos); 1243 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf, 1244 size_t count, loff_t pos); 1245 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len); 1246 #ifdef CONFIG_ADVISE_SYSCALLS 1247 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 1248 #else 1249 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, 1250 int advice) 1251 { 1252 return -EINVAL; 1253 } 1254 #endif 1255 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len, 1256 unsigned long prot, unsigned long flags, 1257 unsigned long fd, unsigned long pgoff); 1258 ssize_t ksys_readahead(int fd, loff_t offset, size_t count); 1259 int ksys_ipc(unsigned int call, int first, unsigned long second, 1260 unsigned long third, void __user * ptr, long fifth); 1261 int compat_ksys_ipc(u32 call, int first, int second, 1262 u32 third, u32 ptr, u32 fifth); 1263 1264 /* 1265 * The following kernel syscall equivalents are just wrappers to fs-internal 1266 * functions. Therefore, provide stubs to be inlined at the callsites. 1267 */ 1268 extern long do_unlinkat(int dfd, struct filename *name); 1269 1270 static inline long ksys_unlink(const char __user *pathname) 1271 { 1272 return do_unlinkat(AT_FDCWD, getname(pathname)); 1273 } 1274 1275 extern long do_rmdir(int dfd, const char __user *pathname); 1276 1277 static inline long ksys_rmdir(const char __user *pathname) 1278 { 1279 return do_rmdir(AT_FDCWD, pathname); 1280 } 1281 1282 extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode); 1283 1284 static inline long ksys_mkdir(const char __user *pathname, umode_t mode) 1285 { 1286 return do_mkdirat(AT_FDCWD, pathname, mode); 1287 } 1288 1289 extern long do_symlinkat(const char __user *oldname, int newdfd, 1290 const char __user *newname); 1291 1292 static inline long ksys_symlink(const char __user *oldname, 1293 const char __user *newname) 1294 { 1295 return do_symlinkat(oldname, AT_FDCWD, newname); 1296 } 1297 1298 extern long do_mknodat(int dfd, const char __user *filename, umode_t mode, 1299 unsigned int dev); 1300 1301 static inline long ksys_mknod(const char __user *filename, umode_t mode, 1302 unsigned int dev) 1303 { 1304 return do_mknodat(AT_FDCWD, filename, mode, dev); 1305 } 1306 1307 extern int do_linkat(int olddfd, const char __user *oldname, int newdfd, 1308 const char __user *newname, int flags); 1309 1310 static inline long ksys_link(const char __user *oldname, 1311 const char __user *newname) 1312 { 1313 return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0); 1314 } 1315 1316 extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode); 1317 1318 static inline int ksys_chmod(const char __user *filename, umode_t mode) 1319 { 1320 return do_fchmodat(AT_FDCWD, filename, mode); 1321 } 1322 1323 extern long do_faccessat(int dfd, const char __user *filename, int mode); 1324 1325 static inline long ksys_access(const char __user *filename, int mode) 1326 { 1327 return do_faccessat(AT_FDCWD, filename, mode); 1328 } 1329 1330 extern int do_fchownat(int dfd, const char __user *filename, uid_t user, 1331 gid_t group, int flag); 1332 1333 static inline long ksys_chown(const char __user *filename, uid_t user, 1334 gid_t group) 1335 { 1336 return do_fchownat(AT_FDCWD, filename, user, group, 0); 1337 } 1338 1339 static inline long ksys_lchown(const char __user *filename, uid_t user, 1340 gid_t group) 1341 { 1342 return do_fchownat(AT_FDCWD, filename, user, group, 1343 AT_SYMLINK_NOFOLLOW); 1344 } 1345 1346 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small); 1347 1348 static inline long ksys_ftruncate(unsigned int fd, unsigned long length) 1349 { 1350 return do_sys_ftruncate(fd, length, 1); 1351 } 1352 1353 extern int __close_fd(struct files_struct *files, unsigned int fd); 1354 1355 /* 1356 * In contrast to sys_close(), this stub does not check whether the syscall 1357 * should or should not be restarted, but returns the raw error codes from 1358 * __close_fd(). 1359 */ 1360 static inline int ksys_close(unsigned int fd) 1361 { 1362 return __close_fd(current->files, fd); 1363 } 1364 1365 extern long do_sys_open(int dfd, const char __user *filename, int flags, 1366 umode_t mode); 1367 1368 static inline long ksys_open(const char __user *filename, int flags, 1369 umode_t mode) 1370 { 1371 if (force_o_largefile()) 1372 flags |= O_LARGEFILE; 1373 return do_sys_open(AT_FDCWD, filename, flags, mode); 1374 } 1375 1376 extern long do_sys_truncate(const char __user *pathname, loff_t length); 1377 1378 static inline long ksys_truncate(const char __user *pathname, loff_t length) 1379 { 1380 return do_sys_truncate(pathname, length); 1381 } 1382 1383 static inline unsigned int ksys_personality(unsigned int personality) 1384 { 1385 unsigned int old = current->personality; 1386 1387 if (personality != 0xffffffff) 1388 set_personality(personality); 1389 1390 return old; 1391 } 1392 1393 #endif 1394