1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * syscalls.h - Linux syscall interfaces (non-arch-specific) 4 * 5 * Copyright (c) 2004 Randy Dunlap 6 * Copyright (c) 2004 Open Source Development Labs 7 */ 8 9 #ifndef _LINUX_SYSCALLS_H 10 #define _LINUX_SYSCALLS_H 11 12 struct __aio_sigset; 13 struct epoll_event; 14 struct iattr; 15 struct inode; 16 struct iocb; 17 struct io_event; 18 struct iovec; 19 struct itimerspec; 20 struct itimerval; 21 struct kexec_segment; 22 struct linux_dirent; 23 struct linux_dirent64; 24 struct list_head; 25 struct mmap_arg_struct; 26 struct msgbuf; 27 struct user_msghdr; 28 struct mmsghdr; 29 struct msqid_ds; 30 struct new_utsname; 31 struct nfsctl_arg; 32 struct __old_kernel_stat; 33 struct oldold_utsname; 34 struct old_utsname; 35 struct pollfd; 36 struct rlimit; 37 struct rlimit64; 38 struct rusage; 39 struct sched_param; 40 struct sched_attr; 41 struct sel_arg_struct; 42 struct semaphore; 43 struct sembuf; 44 struct shmid_ds; 45 struct sockaddr; 46 struct stat; 47 struct stat64; 48 struct statfs; 49 struct statfs64; 50 struct statx; 51 struct __sysctl_args; 52 struct sysinfo; 53 struct timespec; 54 struct timeval; 55 struct __kernel_timex; 56 struct timezone; 57 struct tms; 58 struct utimbuf; 59 struct mq_attr; 60 struct compat_stat; 61 struct old_timeval32; 62 struct robust_list_head; 63 struct getcpu_cache; 64 struct old_linux_dirent; 65 struct perf_event_attr; 66 struct file_handle; 67 struct sigaltstack; 68 struct rseq; 69 union bpf_attr; 70 struct io_uring_params; 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 <linux/personality.h> 84 #include <trace/syscall.h> 85 86 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 87 /* 88 * It may be useful for an architecture to override the definitions of the 89 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a 90 * different calling convention for syscalls. To allow for that, the prototypes 91 * for the sys_*() functions below will *not* be included if 92 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 93 */ 94 #include <asm/syscall_wrapper.h> 95 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 96 97 /* 98 * __MAP - apply a macro to syscall arguments 99 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to 100 * m(t1, a1), m(t2, a2), ..., m(tn, an) 101 * The first argument must be equal to the amount of type/name 102 * pairs given. Note that this list of pairs (i.e. the arguments 103 * of __MAP starting at the third one) is in the same format as 104 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n> 105 */ 106 #define __MAP0(m,...) 107 #define __MAP1(m,t,a,...) m(t,a) 108 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__) 109 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__) 110 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__) 111 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__) 112 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__) 113 #define __MAP(n,...) __MAP##n(__VA_ARGS__) 114 115 #define __SC_DECL(t, a) t a 116 #define __TYPE_AS(t, v) __same_type((__force t)0, v) 117 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L)) 118 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL)) 119 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL)) 120 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a 121 #define __SC_CAST(t, a) (__force t) a 122 #define __SC_ARGS(t, a) a 123 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long)) 124 125 #ifdef CONFIG_FTRACE_SYSCALLS 126 #define __SC_STR_ADECL(t, a) #a 127 #define __SC_STR_TDECL(t, a) #t 128 129 extern struct trace_event_class event_class_syscall_enter; 130 extern struct trace_event_class event_class_syscall_exit; 131 extern struct trace_event_functions enter_syscall_print_funcs; 132 extern struct trace_event_functions exit_syscall_print_funcs; 133 134 #define SYSCALL_TRACE_ENTER_EVENT(sname) \ 135 static struct syscall_metadata __syscall_meta_##sname; \ 136 static struct trace_event_call __used \ 137 event_enter_##sname = { \ 138 .class = &event_class_syscall_enter, \ 139 { \ 140 .name = "sys_enter"#sname, \ 141 }, \ 142 .event.funcs = &enter_syscall_print_funcs, \ 143 .data = (void *)&__syscall_meta_##sname,\ 144 .flags = TRACE_EVENT_FL_CAP_ANY, \ 145 }; \ 146 static struct trace_event_call __used \ 147 __attribute__((section("_ftrace_events"))) \ 148 *__event_enter_##sname = &event_enter_##sname; 149 150 #define SYSCALL_TRACE_EXIT_EVENT(sname) \ 151 static struct syscall_metadata __syscall_meta_##sname; \ 152 static struct trace_event_call __used \ 153 event_exit_##sname = { \ 154 .class = &event_class_syscall_exit, \ 155 { \ 156 .name = "sys_exit"#sname, \ 157 }, \ 158 .event.funcs = &exit_syscall_print_funcs, \ 159 .data = (void *)&__syscall_meta_##sname,\ 160 .flags = TRACE_EVENT_FL_CAP_ANY, \ 161 }; \ 162 static struct trace_event_call __used \ 163 __attribute__((section("_ftrace_events"))) \ 164 *__event_exit_##sname = &event_exit_##sname; 165 166 #define SYSCALL_METADATA(sname, nb, ...) \ 167 static const char *types_##sname[] = { \ 168 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \ 169 }; \ 170 static const char *args_##sname[] = { \ 171 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \ 172 }; \ 173 SYSCALL_TRACE_ENTER_EVENT(sname); \ 174 SYSCALL_TRACE_EXIT_EVENT(sname); \ 175 static struct syscall_metadata __used \ 176 __syscall_meta_##sname = { \ 177 .name = "sys"#sname, \ 178 .syscall_nr = -1, /* Filled in at boot */ \ 179 .nb_args = nb, \ 180 .types = nb ? types_##sname : NULL, \ 181 .args = nb ? args_##sname : NULL, \ 182 .enter_event = &event_enter_##sname, \ 183 .exit_event = &event_exit_##sname, \ 184 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \ 185 }; \ 186 static struct syscall_metadata __used \ 187 __attribute__((section("__syscalls_metadata"))) \ 188 *__p_syscall_meta_##sname = &__syscall_meta_##sname; 189 190 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 191 { 192 return tp_event->class == &event_class_syscall_enter || 193 tp_event->class == &event_class_syscall_exit; 194 } 195 196 #else 197 #define SYSCALL_METADATA(sname, nb, ...) 198 199 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 200 { 201 return 0; 202 } 203 #endif 204 205 #ifndef SYSCALL_DEFINE0 206 #define SYSCALL_DEFINE0(sname) \ 207 SYSCALL_METADATA(_##sname, 0); \ 208 asmlinkage long sys_##sname(void); \ 209 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \ 210 asmlinkage long sys_##sname(void) 211 #endif /* SYSCALL_DEFINE0 */ 212 213 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__) 214 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__) 215 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) 216 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__) 217 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) 218 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) 219 220 #define SYSCALL_DEFINE_MAXARGS 6 221 222 #define SYSCALL_DEFINEx(x, sname, ...) \ 223 SYSCALL_METADATA(sname, x, __VA_ARGS__) \ 224 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) 225 226 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__) 227 228 /* 229 * The asmlinkage stub is aliased to a function named __se_sys_*() which 230 * sign-extends 32-bit ints to longs whenever needed. The actual work is 231 * done within __do_sys_*(). 232 */ 233 #ifndef __SYSCALL_DEFINEx 234 #define __SYSCALL_DEFINEx(x, name, ...) \ 235 __diag_push(); \ 236 __diag_ignore(GCC, 8, "-Wattribute-alias", \ 237 "Type aliasing is used to sanitize syscall arguments");\ 238 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ 239 __attribute__((alias(__stringify(__se_sys##name)))); \ 240 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \ 241 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ 242 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ 243 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ 244 { \ 245 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\ 246 __MAP(x,__SC_TEST,__VA_ARGS__); \ 247 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \ 248 return ret; \ 249 } \ 250 __diag_pop(); \ 251 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) 252 #endif /* __SYSCALL_DEFINEx */ 253 254 /* 255 * Called before coming back to user-mode. Returning to user-mode with an 256 * address limit different than USER_DS can allow to overwrite kernel memory. 257 */ 258 static inline void addr_limit_user_check(void) 259 { 260 #ifdef TIF_FSCHECK 261 if (!test_thread_flag(TIF_FSCHECK)) 262 return; 263 #endif 264 265 if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS), 266 "Invalid address limit on user-mode return")) 267 force_sig(SIGKILL, current); 268 269 #ifdef TIF_FSCHECK 270 clear_thread_flag(TIF_FSCHECK); 271 #endif 272 } 273 274 /* 275 * These syscall function prototypes are kept in the same order as 276 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below, 277 * followed by deprecated or obsolete system calls. 278 * 279 * Please note that these prototypes here are only provided for information 280 * purposes, for static analysis, and for linking from the syscall table. 281 * These functions should not be called elsewhere from kernel code. 282 * 283 * As the syscall calling convention may be different from the default 284 * for architectures overriding the syscall calling convention, do not 285 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 286 */ 287 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 288 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx); 289 asmlinkage long sys_io_destroy(aio_context_t ctx); 290 asmlinkage long sys_io_submit(aio_context_t, long, 291 struct iocb __user * __user *); 292 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb, 293 struct io_event __user *result); 294 asmlinkage long sys_io_getevents(aio_context_t ctx_id, 295 long min_nr, 296 long nr, 297 struct io_event __user *events, 298 struct __kernel_timespec __user *timeout); 299 asmlinkage long sys_io_getevents_time32(__u32 ctx_id, 300 __s32 min_nr, 301 __s32 nr, 302 struct io_event __user *events, 303 struct old_timespec32 __user *timeout); 304 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id, 305 long min_nr, 306 long nr, 307 struct io_event __user *events, 308 struct __kernel_timespec __user *timeout, 309 const struct __aio_sigset *sig); 310 asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id, 311 long min_nr, 312 long nr, 313 struct io_event __user *events, 314 struct old_timespec32 __user *timeout, 315 const struct __aio_sigset *sig); 316 asmlinkage long sys_io_uring_setup(u32 entries, 317 struct io_uring_params __user *p); 318 asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit, 319 u32 min_complete, u32 flags, 320 const sigset_t __user *sig, size_t sigsz); 321 asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op, 322 void __user *arg, unsigned int nr_args); 323 324 /* fs/xattr.c */ 325 asmlinkage long sys_setxattr(const char __user *path, const char __user *name, 326 const void __user *value, size_t size, int flags); 327 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name, 328 const void __user *value, size_t size, int flags); 329 asmlinkage long sys_fsetxattr(int fd, const char __user *name, 330 const void __user *value, size_t size, int flags); 331 asmlinkage long sys_getxattr(const char __user *path, const char __user *name, 332 void __user *value, size_t size); 333 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name, 334 void __user *value, size_t size); 335 asmlinkage long sys_fgetxattr(int fd, const char __user *name, 336 void __user *value, size_t size); 337 asmlinkage long sys_listxattr(const char __user *path, char __user *list, 338 size_t size); 339 asmlinkage long sys_llistxattr(const char __user *path, char __user *list, 340 size_t size); 341 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size); 342 asmlinkage long sys_removexattr(const char __user *path, 343 const char __user *name); 344 asmlinkage long sys_lremovexattr(const char __user *path, 345 const char __user *name); 346 asmlinkage long sys_fremovexattr(int fd, const char __user *name); 347 348 /* fs/dcache.c */ 349 asmlinkage long sys_getcwd(char __user *buf, unsigned long size); 350 351 /* fs/cookies.c */ 352 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len); 353 354 /* fs/eventfd.c */ 355 asmlinkage long sys_eventfd2(unsigned int count, int flags); 356 357 /* fs/eventpoll.c */ 358 asmlinkage long sys_epoll_create1(int flags); 359 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, 360 struct epoll_event __user *event); 361 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events, 362 int maxevents, int timeout, 363 const sigset_t __user *sigmask, 364 size_t sigsetsize); 365 366 /* fs/fcntl.c */ 367 asmlinkage long sys_dup(unsigned int fildes); 368 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags); 369 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); 370 #if BITS_PER_LONG == 32 371 asmlinkage long sys_fcntl64(unsigned int fd, 372 unsigned int cmd, unsigned long arg); 373 #endif 374 375 /* fs/inotify_user.c */ 376 asmlinkage long sys_inotify_init1(int flags); 377 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, 378 u32 mask); 379 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd); 380 381 /* fs/ioctl.c */ 382 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, 383 unsigned long arg); 384 385 /* fs/ioprio.c */ 386 asmlinkage long sys_ioprio_set(int which, int who, int ioprio); 387 asmlinkage long sys_ioprio_get(int which, int who); 388 389 /* fs/locks.c */ 390 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd); 391 392 /* fs/namei.c */ 393 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode, 394 unsigned dev); 395 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode); 396 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag); 397 asmlinkage long sys_symlinkat(const char __user * oldname, 398 int newdfd, const char __user * newname); 399 asmlinkage long sys_linkat(int olddfd, const char __user *oldname, 400 int newdfd, const char __user *newname, int flags); 401 asmlinkage long sys_renameat(int olddfd, const char __user * oldname, 402 int newdfd, const char __user * newname); 403 404 /* fs/namespace.c */ 405 asmlinkage long sys_umount(char __user *name, int flags); 406 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name, 407 char __user *type, unsigned long flags, 408 void __user *data); 409 asmlinkage long sys_pivot_root(const char __user *new_root, 410 const char __user *put_old); 411 412 /* fs/nfsctl.c */ 413 414 /* fs/open.c */ 415 asmlinkage long sys_statfs(const char __user * path, 416 struct statfs __user *buf); 417 asmlinkage long sys_statfs64(const char __user *path, size_t sz, 418 struct statfs64 __user *buf); 419 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf); 420 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz, 421 struct statfs64 __user *buf); 422 asmlinkage long sys_truncate(const char __user *path, long length); 423 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length); 424 #if BITS_PER_LONG == 32 425 asmlinkage long sys_truncate64(const char __user *path, loff_t length); 426 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length); 427 #endif 428 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len); 429 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode); 430 asmlinkage long sys_chdir(const char __user *filename); 431 asmlinkage long sys_fchdir(unsigned int fd); 432 asmlinkage long sys_chroot(const char __user *filename); 433 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode); 434 asmlinkage long sys_fchmodat(int dfd, const char __user * filename, 435 umode_t mode); 436 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user, 437 gid_t group, int flag); 438 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group); 439 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags, 440 umode_t mode); 441 asmlinkage long sys_close(unsigned int fd); 442 asmlinkage long sys_vhangup(void); 443 444 /* fs/pipe.c */ 445 asmlinkage long sys_pipe2(int __user *fildes, int flags); 446 447 /* fs/quota.c */ 448 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special, 449 qid_t id, void __user *addr); 450 451 /* fs/readdir.c */ 452 asmlinkage long sys_getdents64(unsigned int fd, 453 struct linux_dirent64 __user *dirent, 454 unsigned int count); 455 456 /* fs/read_write.c */ 457 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high, 458 unsigned long offset_low, loff_t __user *result, 459 unsigned int whence); 460 asmlinkage long sys_lseek(unsigned int fd, off_t offset, 461 unsigned int whence); 462 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count); 463 asmlinkage long sys_write(unsigned int fd, const char __user *buf, 464 size_t count); 465 asmlinkage long sys_readv(unsigned long fd, 466 const struct iovec __user *vec, 467 unsigned long vlen); 468 asmlinkage long sys_writev(unsigned long fd, 469 const struct iovec __user *vec, 470 unsigned long vlen); 471 asmlinkage long sys_pread64(unsigned int fd, char __user *buf, 472 size_t count, loff_t pos); 473 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf, 474 size_t count, loff_t pos); 475 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec, 476 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 477 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec, 478 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 479 480 /* fs/sendfile.c */ 481 asmlinkage long sys_sendfile64(int out_fd, int in_fd, 482 loff_t __user *offset, size_t count); 483 484 /* fs/select.c */ 485 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *, 486 fd_set __user *, struct __kernel_timespec __user *, 487 void __user *); 488 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *, 489 fd_set __user *, struct old_timespec32 __user *, 490 void __user *); 491 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int, 492 struct __kernel_timespec __user *, const sigset_t __user *, 493 size_t); 494 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int, 495 struct old_timespec32 __user *, const sigset_t __user *, 496 size_t); 497 498 /* fs/signalfd.c */ 499 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags); 500 501 /* fs/splice.c */ 502 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov, 503 unsigned long nr_segs, unsigned int flags); 504 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in, 505 int fd_out, loff_t __user *off_out, 506 size_t len, unsigned int flags); 507 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags); 508 509 /* fs/stat.c */ 510 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf, 511 int bufsiz); 512 asmlinkage long sys_newfstatat(int dfd, const char __user *filename, 513 struct stat __user *statbuf, int flag); 514 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf); 515 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 516 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf); 517 asmlinkage long sys_fstatat64(int dfd, const char __user *filename, 518 struct stat64 __user *statbuf, int flag); 519 #endif 520 521 /* fs/sync.c */ 522 asmlinkage long sys_sync(void); 523 asmlinkage long sys_fsync(unsigned int fd); 524 asmlinkage long sys_fdatasync(unsigned int fd); 525 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags, 526 loff_t offset, loff_t nbytes); 527 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 528 unsigned int flags); 529 530 /* fs/timerfd.c */ 531 asmlinkage long sys_timerfd_create(int clockid, int flags); 532 asmlinkage long sys_timerfd_settime(int ufd, int flags, 533 const struct __kernel_itimerspec __user *utmr, 534 struct __kernel_itimerspec __user *otmr); 535 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr); 536 asmlinkage long sys_timerfd_gettime32(int ufd, 537 struct old_itimerspec32 __user *otmr); 538 asmlinkage long sys_timerfd_settime32(int ufd, int flags, 539 const struct old_itimerspec32 __user *utmr, 540 struct old_itimerspec32 __user *otmr); 541 542 /* fs/utimes.c */ 543 asmlinkage long sys_utimensat(int dfd, const char __user *filename, 544 struct __kernel_timespec __user *utimes, 545 int flags); 546 asmlinkage long sys_utimensat_time32(unsigned int dfd, 547 const char __user *filename, 548 struct old_timespec32 __user *t, int flags); 549 550 /* kernel/acct.c */ 551 asmlinkage long sys_acct(const char __user *name); 552 553 /* kernel/capability.c */ 554 asmlinkage long sys_capget(cap_user_header_t header, 555 cap_user_data_t dataptr); 556 asmlinkage long sys_capset(cap_user_header_t header, 557 const cap_user_data_t data); 558 559 /* kernel/exec_domain.c */ 560 asmlinkage long sys_personality(unsigned int personality); 561 562 /* kernel/exit.c */ 563 asmlinkage long sys_exit(int error_code); 564 asmlinkage long sys_exit_group(int error_code); 565 asmlinkage long sys_waitid(int which, pid_t pid, 566 struct siginfo __user *infop, 567 int options, struct rusage __user *ru); 568 569 /* kernel/fork.c */ 570 asmlinkage long sys_set_tid_address(int __user *tidptr); 571 asmlinkage long sys_unshare(unsigned long unshare_flags); 572 573 /* kernel/futex.c */ 574 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val, 575 struct __kernel_timespec __user *utime, u32 __user *uaddr2, 576 u32 val3); 577 asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val, 578 struct old_timespec32 __user *utime, u32 __user *uaddr2, 579 u32 val3); 580 asmlinkage long sys_get_robust_list(int pid, 581 struct robust_list_head __user * __user *head_ptr, 582 size_t __user *len_ptr); 583 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, 584 size_t len); 585 586 /* kernel/hrtimer.c */ 587 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp, 588 struct __kernel_timespec __user *rmtp); 589 asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp, 590 struct old_timespec32 __user *rmtp); 591 592 /* kernel/itimer.c */ 593 asmlinkage long sys_getitimer(int which, struct itimerval __user *value); 594 asmlinkage long sys_setitimer(int which, 595 struct itimerval __user *value, 596 struct itimerval __user *ovalue); 597 598 /* kernel/kexec.c */ 599 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments, 600 struct kexec_segment __user *segments, 601 unsigned long flags); 602 603 /* kernel/module.c */ 604 asmlinkage long sys_init_module(void __user *umod, unsigned long len, 605 const char __user *uargs); 606 asmlinkage long sys_delete_module(const char __user *name_user, 607 unsigned int flags); 608 609 /* kernel/posix-timers.c */ 610 asmlinkage long sys_timer_create(clockid_t which_clock, 611 struct sigevent __user *timer_event_spec, 612 timer_t __user * created_timer_id); 613 asmlinkage long sys_timer_gettime(timer_t timer_id, 614 struct __kernel_itimerspec __user *setting); 615 asmlinkage long sys_timer_getoverrun(timer_t timer_id); 616 asmlinkage long sys_timer_settime(timer_t timer_id, int flags, 617 const struct __kernel_itimerspec __user *new_setting, 618 struct __kernel_itimerspec __user *old_setting); 619 asmlinkage long sys_timer_delete(timer_t timer_id); 620 asmlinkage long sys_clock_settime(clockid_t which_clock, 621 const struct __kernel_timespec __user *tp); 622 asmlinkage long sys_clock_gettime(clockid_t which_clock, 623 struct __kernel_timespec __user *tp); 624 asmlinkage long sys_clock_getres(clockid_t which_clock, 625 struct __kernel_timespec __user *tp); 626 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags, 627 const struct __kernel_timespec __user *rqtp, 628 struct __kernel_timespec __user *rmtp); 629 asmlinkage long sys_timer_gettime32(timer_t timer_id, 630 struct old_itimerspec32 __user *setting); 631 asmlinkage long sys_timer_settime32(timer_t timer_id, int flags, 632 struct old_itimerspec32 __user *new, 633 struct old_itimerspec32 __user *old); 634 asmlinkage long sys_clock_settime32(clockid_t which_clock, 635 struct old_timespec32 __user *tp); 636 asmlinkage long sys_clock_gettime32(clockid_t which_clock, 637 struct old_timespec32 __user *tp); 638 asmlinkage long sys_clock_getres_time32(clockid_t which_clock, 639 struct old_timespec32 __user *tp); 640 asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags, 641 struct old_timespec32 __user *rqtp, 642 struct old_timespec32 __user *rmtp); 643 644 /* kernel/printk.c */ 645 asmlinkage long sys_syslog(int type, char __user *buf, int len); 646 647 /* kernel/ptrace.c */ 648 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, 649 unsigned long data); 650 /* kernel/sched/core.c */ 651 652 asmlinkage long sys_sched_setparam(pid_t pid, 653 struct sched_param __user *param); 654 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy, 655 struct sched_param __user *param); 656 asmlinkage long sys_sched_getscheduler(pid_t pid); 657 asmlinkage long sys_sched_getparam(pid_t pid, 658 struct sched_param __user *param); 659 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len, 660 unsigned long __user *user_mask_ptr); 661 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len, 662 unsigned long __user *user_mask_ptr); 663 asmlinkage long sys_sched_yield(void); 664 asmlinkage long sys_sched_get_priority_max(int policy); 665 asmlinkage long sys_sched_get_priority_min(int policy); 666 asmlinkage long sys_sched_rr_get_interval(pid_t pid, 667 struct __kernel_timespec __user *interval); 668 asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid, 669 struct old_timespec32 __user *interval); 670 671 /* kernel/signal.c */ 672 asmlinkage long sys_restart_syscall(void); 673 asmlinkage long sys_kill(pid_t pid, int sig); 674 asmlinkage long sys_tkill(pid_t pid, int sig); 675 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig); 676 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss, 677 struct sigaltstack __user *uoss); 678 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize); 679 #ifndef CONFIG_ODD_RT_SIGACTION 680 asmlinkage long sys_rt_sigaction(int, 681 const struct sigaction __user *, 682 struct sigaction __user *, 683 size_t); 684 #endif 685 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set, 686 sigset_t __user *oset, size_t sigsetsize); 687 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize); 688 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese, 689 siginfo_t __user *uinfo, 690 const struct __kernel_timespec __user *uts, 691 size_t sigsetsize); 692 asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese, 693 siginfo_t __user *uinfo, 694 const struct old_timespec32 __user *uts, 695 size_t sigsetsize); 696 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo); 697 698 /* kernel/sys.c */ 699 asmlinkage long sys_setpriority(int which, int who, int niceval); 700 asmlinkage long sys_getpriority(int which, int who); 701 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, 702 void __user *arg); 703 asmlinkage long sys_setregid(gid_t rgid, gid_t egid); 704 asmlinkage long sys_setgid(gid_t gid); 705 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid); 706 asmlinkage long sys_setuid(uid_t uid); 707 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid); 708 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid); 709 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid); 710 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid); 711 asmlinkage long sys_setfsuid(uid_t uid); 712 asmlinkage long sys_setfsgid(gid_t gid); 713 asmlinkage long sys_times(struct tms __user *tbuf); 714 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid); 715 asmlinkage long sys_getpgid(pid_t pid); 716 asmlinkage long sys_getsid(pid_t pid); 717 asmlinkage long sys_setsid(void); 718 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist); 719 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist); 720 asmlinkage long sys_newuname(struct new_utsname __user *name); 721 asmlinkage long sys_sethostname(char __user *name, int len); 722 asmlinkage long sys_setdomainname(char __user *name, int len); 723 asmlinkage long sys_getrlimit(unsigned int resource, 724 struct rlimit __user *rlim); 725 asmlinkage long sys_setrlimit(unsigned int resource, 726 struct rlimit __user *rlim); 727 asmlinkage long sys_getrusage(int who, struct rusage __user *ru); 728 asmlinkage long sys_umask(int mask); 729 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, 730 unsigned long arg4, unsigned long arg5); 731 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache); 732 733 /* kernel/time.c */ 734 asmlinkage long sys_gettimeofday(struct timeval __user *tv, 735 struct timezone __user *tz); 736 asmlinkage long sys_settimeofday(struct timeval __user *tv, 737 struct timezone __user *tz); 738 asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p); 739 asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p); 740 741 /* kernel/timer.c */ 742 asmlinkage long sys_getpid(void); 743 asmlinkage long sys_getppid(void); 744 asmlinkage long sys_getuid(void); 745 asmlinkage long sys_geteuid(void); 746 asmlinkage long sys_getgid(void); 747 asmlinkage long sys_getegid(void); 748 asmlinkage long sys_gettid(void); 749 asmlinkage long sys_sysinfo(struct sysinfo __user *info); 750 751 /* ipc/mqueue.c */ 752 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr); 753 asmlinkage long sys_mq_unlink(const char __user *name); 754 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); 755 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); 756 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification); 757 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat); 758 asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes, 759 char __user *u_msg_ptr, 760 unsigned int msg_len, unsigned int __user *u_msg_prio, 761 const struct old_timespec32 __user *u_abs_timeout); 762 asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes, 763 const char __user *u_msg_ptr, 764 unsigned int msg_len, unsigned int msg_prio, 765 const struct old_timespec32 __user *u_abs_timeout); 766 767 /* ipc/msg.c */ 768 asmlinkage long sys_msgget(key_t key, int msgflg); 769 asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 770 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 771 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp, 772 size_t msgsz, long msgtyp, int msgflg); 773 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp, 774 size_t msgsz, int msgflg); 775 776 /* ipc/sem.c */ 777 asmlinkage long sys_semget(key_t key, int nsems, int semflg); 778 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg); 779 asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg); 780 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops, 781 unsigned nsops, 782 const struct __kernel_timespec __user *timeout); 783 asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops, 784 unsigned nsops, 785 const struct old_timespec32 __user *timeout); 786 asmlinkage long sys_semop(int semid, struct sembuf __user *sops, 787 unsigned nsops); 788 789 /* ipc/shm.c */ 790 asmlinkage long sys_shmget(key_t key, size_t size, int flag); 791 asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 792 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 793 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg); 794 asmlinkage long sys_shmdt(char __user *shmaddr); 795 796 /* net/socket.c */ 797 asmlinkage long sys_socket(int, int, int); 798 asmlinkage long sys_socketpair(int, int, int, int __user *); 799 asmlinkage long sys_bind(int, struct sockaddr __user *, int); 800 asmlinkage long sys_listen(int, int); 801 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *); 802 asmlinkage long sys_connect(int, struct sockaddr __user *, int); 803 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *); 804 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *); 805 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned, 806 struct sockaddr __user *, int); 807 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned, 808 struct sockaddr __user *, int __user *); 809 asmlinkage long sys_setsockopt(int fd, int level, int optname, 810 char __user *optval, int optlen); 811 asmlinkage long sys_getsockopt(int fd, int level, int optname, 812 char __user *optval, int __user *optlen); 813 asmlinkage long sys_shutdown(int, int); 814 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 815 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 816 817 /* mm/filemap.c */ 818 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count); 819 820 /* mm/nommu.c, also with MMU */ 821 asmlinkage long sys_brk(unsigned long brk); 822 asmlinkage long sys_munmap(unsigned long addr, size_t len); 823 asmlinkage long sys_mremap(unsigned long addr, 824 unsigned long old_len, unsigned long new_len, 825 unsigned long flags, unsigned long new_addr); 826 827 /* security/keys/keyctl.c */ 828 asmlinkage long sys_add_key(const char __user *_type, 829 const char __user *_description, 830 const void __user *_payload, 831 size_t plen, 832 key_serial_t destringid); 833 asmlinkage long sys_request_key(const char __user *_type, 834 const char __user *_description, 835 const char __user *_callout_info, 836 key_serial_t destringid); 837 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3, 838 unsigned long arg4, unsigned long arg5); 839 840 /* arch/example/kernel/sys_example.c */ 841 #ifdef CONFIG_CLONE_BACKWARDS 842 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long, 843 int __user *); 844 #else 845 #ifdef CONFIG_CLONE_BACKWARDS3 846 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *, 847 int __user *, unsigned long); 848 #else 849 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, 850 int __user *, unsigned long); 851 #endif 852 #endif 853 asmlinkage long sys_execve(const char __user *filename, 854 const char __user *const __user *argv, 855 const char __user *const __user *envp); 856 857 /* mm/fadvise.c */ 858 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 859 860 /* mm/, CONFIG_MMU only */ 861 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags); 862 asmlinkage long sys_swapoff(const char __user *specialfile); 863 asmlinkage long sys_mprotect(unsigned long start, size_t len, 864 unsigned long prot); 865 asmlinkage long sys_msync(unsigned long start, size_t len, int flags); 866 asmlinkage long sys_mlock(unsigned long start, size_t len); 867 asmlinkage long sys_munlock(unsigned long start, size_t len); 868 asmlinkage long sys_mlockall(int flags); 869 asmlinkage long sys_munlockall(void); 870 asmlinkage long sys_mincore(unsigned long start, size_t len, 871 unsigned char __user * vec); 872 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior); 873 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, 874 unsigned long prot, unsigned long pgoff, 875 unsigned long flags); 876 asmlinkage long sys_mbind(unsigned long start, unsigned long len, 877 unsigned long mode, 878 const unsigned long __user *nmask, 879 unsigned long maxnode, 880 unsigned flags); 881 asmlinkage long sys_get_mempolicy(int __user *policy, 882 unsigned long __user *nmask, 883 unsigned long maxnode, 884 unsigned long addr, unsigned long flags); 885 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask, 886 unsigned long maxnode); 887 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode, 888 const unsigned long __user *from, 889 const unsigned long __user *to); 890 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages, 891 const void __user * __user *pages, 892 const int __user *nodes, 893 int __user *status, 894 int flags); 895 896 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, 897 siginfo_t __user *uinfo); 898 asmlinkage long sys_perf_event_open( 899 struct perf_event_attr __user *attr_uptr, 900 pid_t pid, int cpu, int group_fd, unsigned long flags); 901 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int); 902 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg, 903 unsigned int vlen, unsigned flags, 904 struct __kernel_timespec __user *timeout); 905 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg, 906 unsigned int vlen, unsigned flags, 907 struct old_timespec32 __user *timeout); 908 909 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr, 910 int options, struct rusage __user *ru); 911 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource, 912 const struct rlimit64 __user *new_rlim, 913 struct rlimit64 __user *old_rlim); 914 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags); 915 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags, 916 u64 mask, int fd, 917 const char __user *pathname); 918 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name, 919 struct file_handle __user *handle, 920 int __user *mnt_id, int flag); 921 asmlinkage long sys_open_by_handle_at(int mountdirfd, 922 struct file_handle __user *handle, 923 int flags); 924 asmlinkage long sys_clock_adjtime(clockid_t which_clock, 925 struct __kernel_timex __user *tx); 926 asmlinkage long sys_clock_adjtime32(clockid_t which_clock, 927 struct old_timex32 __user *tx); 928 asmlinkage long sys_syncfs(int fd); 929 asmlinkage long sys_setns(int fd, int nstype); 930 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg, 931 unsigned int vlen, unsigned flags); 932 asmlinkage long sys_process_vm_readv(pid_t pid, 933 const struct iovec __user *lvec, 934 unsigned long liovcnt, 935 const struct iovec __user *rvec, 936 unsigned long riovcnt, 937 unsigned long flags); 938 asmlinkage long sys_process_vm_writev(pid_t pid, 939 const struct iovec __user *lvec, 940 unsigned long liovcnt, 941 const struct iovec __user *rvec, 942 unsigned long riovcnt, 943 unsigned long flags); 944 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type, 945 unsigned long idx1, unsigned long idx2); 946 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags); 947 asmlinkage long sys_sched_setattr(pid_t pid, 948 struct sched_attr __user *attr, 949 unsigned int flags); 950 asmlinkage long sys_sched_getattr(pid_t pid, 951 struct sched_attr __user *attr, 952 unsigned int size, 953 unsigned int flags); 954 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname, 955 int newdfd, const char __user *newname, 956 unsigned int flags); 957 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, 958 void __user *uargs); 959 asmlinkage long sys_getrandom(char __user *buf, size_t count, 960 unsigned int flags); 961 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags); 962 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size); 963 asmlinkage long sys_execveat(int dfd, const char __user *filename, 964 const char __user *const __user *argv, 965 const char __user *const __user *envp, int flags); 966 asmlinkage long sys_userfaultfd(int flags); 967 asmlinkage long sys_membarrier(int cmd, int flags); 968 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags); 969 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in, 970 int fd_out, loff_t __user *off_out, 971 size_t len, unsigned int flags); 972 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec, 973 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 974 rwf_t flags); 975 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec, 976 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 977 rwf_t flags); 978 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len, 979 unsigned long prot, int pkey); 980 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val); 981 asmlinkage long sys_pkey_free(int pkey); 982 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags, 983 unsigned mask, struct statx __user *buffer); 984 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len, 985 int flags, uint32_t sig); 986 asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags); 987 asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path, 988 int to_dfd, const char __user *to_path, 989 unsigned int ms_flags); 990 asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags); 991 asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key, 992 const void __user *value, int aux); 993 asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags); 994 asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags); 995 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig, 996 siginfo_t __user *info, 997 unsigned int flags); 998 999 /* 1000 * Architecture-specific system calls 1001 */ 1002 1003 /* arch/x86/kernel/ioport.c */ 1004 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); 1005 1006 /* pciconfig: alpha, arm, arm64, ia64, sparc */ 1007 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn, 1008 unsigned long off, unsigned long len, 1009 void __user *buf); 1010 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn, 1011 unsigned long off, unsigned long len, 1012 void __user *buf); 1013 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn); 1014 1015 /* powerpc */ 1016 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc, 1017 __u32 __user *ustatus); 1018 asmlinkage long sys_spu_create(const char __user *name, 1019 unsigned int flags, umode_t mode, int fd); 1020 1021 1022 /* 1023 * Deprecated system calls which are still defined in 1024 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch 1025 */ 1026 1027 /* __ARCH_WANT_SYSCALL_NO_AT */ 1028 asmlinkage long sys_open(const char __user *filename, 1029 int flags, umode_t mode); 1030 asmlinkage long sys_link(const char __user *oldname, 1031 const char __user *newname); 1032 asmlinkage long sys_unlink(const char __user *pathname); 1033 asmlinkage long sys_mknod(const char __user *filename, umode_t mode, 1034 unsigned dev); 1035 asmlinkage long sys_chmod(const char __user *filename, umode_t mode); 1036 asmlinkage long sys_chown(const char __user *filename, 1037 uid_t user, gid_t group); 1038 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode); 1039 asmlinkage long sys_rmdir(const char __user *pathname); 1040 asmlinkage long sys_lchown(const char __user *filename, 1041 uid_t user, gid_t group); 1042 asmlinkage long sys_access(const char __user *filename, int mode); 1043 asmlinkage long sys_rename(const char __user *oldname, 1044 const char __user *newname); 1045 asmlinkage long sys_symlink(const char __user *old, const char __user *new); 1046 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 1047 asmlinkage long sys_stat64(const char __user *filename, 1048 struct stat64 __user *statbuf); 1049 asmlinkage long sys_lstat64(const char __user *filename, 1050 struct stat64 __user *statbuf); 1051 #endif 1052 1053 /* __ARCH_WANT_SYSCALL_NO_FLAGS */ 1054 asmlinkage long sys_pipe(int __user *fildes); 1055 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd); 1056 asmlinkage long sys_epoll_create(int size); 1057 asmlinkage long sys_inotify_init(void); 1058 asmlinkage long sys_eventfd(unsigned int count); 1059 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask); 1060 1061 /* __ARCH_WANT_SYSCALL_OFF_T */ 1062 asmlinkage long sys_sendfile(int out_fd, int in_fd, 1063 off_t __user *offset, size_t count); 1064 asmlinkage long sys_newstat(const char __user *filename, 1065 struct stat __user *statbuf); 1066 asmlinkage long sys_newlstat(const char __user *filename, 1067 struct stat __user *statbuf); 1068 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice); 1069 1070 /* __ARCH_WANT_SYSCALL_DEPRECATED */ 1071 asmlinkage long sys_alarm(unsigned int seconds); 1072 asmlinkage long sys_getpgrp(void); 1073 asmlinkage long sys_pause(void); 1074 asmlinkage long sys_time(time_t __user *tloc); 1075 asmlinkage long sys_time32(old_time32_t __user *tloc); 1076 #ifdef __ARCH_WANT_SYS_UTIME 1077 asmlinkage long sys_utime(char __user *filename, 1078 struct utimbuf __user *times); 1079 asmlinkage long sys_utimes(char __user *filename, 1080 struct timeval __user *utimes); 1081 asmlinkage long sys_futimesat(int dfd, const char __user *filename, 1082 struct timeval __user *utimes); 1083 #endif 1084 asmlinkage long sys_futimesat_time32(unsigned int dfd, 1085 const char __user *filename, 1086 struct old_timeval32 __user *t); 1087 asmlinkage long sys_utime32(const char __user *filename, 1088 struct old_utimbuf32 __user *t); 1089 asmlinkage long sys_utimes_time32(const char __user *filename, 1090 struct old_timeval32 __user *t); 1091 asmlinkage long sys_creat(const char __user *pathname, umode_t mode); 1092 asmlinkage long sys_getdents(unsigned int fd, 1093 struct linux_dirent __user *dirent, 1094 unsigned int count); 1095 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp, 1096 fd_set __user *exp, struct timeval __user *tvp); 1097 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds, 1098 int timeout); 1099 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, 1100 int maxevents, int timeout); 1101 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf); 1102 asmlinkage long sys_vfork(void); 1103 asmlinkage long sys_recv(int, void __user *, size_t, unsigned); 1104 asmlinkage long sys_send(int, void __user *, size_t, unsigned); 1105 asmlinkage long sys_bdflush(int func, long data); 1106 asmlinkage long sys_oldumount(char __user *name); 1107 asmlinkage long sys_uselib(const char __user *library); 1108 asmlinkage long sys_sysctl(struct __sysctl_args __user *args); 1109 asmlinkage long sys_sysfs(int option, 1110 unsigned long arg1, unsigned long arg2); 1111 asmlinkage long sys_fork(void); 1112 1113 /* obsolete: kernel/time/time.c */ 1114 asmlinkage long sys_stime(time_t __user *tptr); 1115 asmlinkage long sys_stime32(old_time32_t __user *tptr); 1116 1117 /* obsolete: kernel/signal.c */ 1118 asmlinkage long sys_sigpending(old_sigset_t __user *uset); 1119 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set, 1120 old_sigset_t __user *oset); 1121 #ifdef CONFIG_OLD_SIGSUSPEND 1122 asmlinkage long sys_sigsuspend(old_sigset_t mask); 1123 #endif 1124 1125 #ifdef CONFIG_OLD_SIGSUSPEND3 1126 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask); 1127 #endif 1128 1129 #ifdef CONFIG_OLD_SIGACTION 1130 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *, 1131 struct old_sigaction __user *); 1132 #endif 1133 asmlinkage long sys_sgetmask(void); 1134 asmlinkage long sys_ssetmask(int newmask); 1135 asmlinkage long sys_signal(int sig, __sighandler_t handler); 1136 1137 /* obsolete: kernel/sched/core.c */ 1138 asmlinkage long sys_nice(int increment); 1139 1140 /* obsolete: kernel/kexec_file.c */ 1141 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd, 1142 unsigned long cmdline_len, 1143 const char __user *cmdline_ptr, 1144 unsigned long flags); 1145 1146 /* obsolete: kernel/exit.c */ 1147 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options); 1148 1149 /* obsolete: kernel/uid16.c */ 1150 #ifdef CONFIG_HAVE_UID16 1151 asmlinkage long sys_chown16(const char __user *filename, 1152 old_uid_t user, old_gid_t group); 1153 asmlinkage long sys_lchown16(const char __user *filename, 1154 old_uid_t user, old_gid_t group); 1155 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group); 1156 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid); 1157 asmlinkage long sys_setgid16(old_gid_t gid); 1158 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid); 1159 asmlinkage long sys_setuid16(old_uid_t uid); 1160 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid); 1161 asmlinkage long sys_getresuid16(old_uid_t __user *ruid, 1162 old_uid_t __user *euid, old_uid_t __user *suid); 1163 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid); 1164 asmlinkage long sys_getresgid16(old_gid_t __user *rgid, 1165 old_gid_t __user *egid, old_gid_t __user *sgid); 1166 asmlinkage long sys_setfsuid16(old_uid_t uid); 1167 asmlinkage long sys_setfsgid16(old_gid_t gid); 1168 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist); 1169 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist); 1170 asmlinkage long sys_getuid16(void); 1171 asmlinkage long sys_geteuid16(void); 1172 asmlinkage long sys_getgid16(void); 1173 asmlinkage long sys_getegid16(void); 1174 #endif 1175 1176 /* obsolete: net/socket.c */ 1177 asmlinkage long sys_socketcall(int call, unsigned long __user *args); 1178 1179 /* obsolete: fs/stat.c */ 1180 asmlinkage long sys_stat(const char __user *filename, 1181 struct __old_kernel_stat __user *statbuf); 1182 asmlinkage long sys_lstat(const char __user *filename, 1183 struct __old_kernel_stat __user *statbuf); 1184 asmlinkage long sys_fstat(unsigned int fd, 1185 struct __old_kernel_stat __user *statbuf); 1186 asmlinkage long sys_readlink(const char __user *path, 1187 char __user *buf, int bufsiz); 1188 1189 /* obsolete: fs/select.c */ 1190 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg); 1191 1192 /* obsolete: fs/readdir.c */ 1193 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int); 1194 1195 /* obsolete: kernel/sys.c */ 1196 asmlinkage long sys_gethostname(char __user *name, int len); 1197 asmlinkage long sys_uname(struct old_utsname __user *); 1198 asmlinkage long sys_olduname(struct oldold_utsname __user *); 1199 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT 1200 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim); 1201 #endif 1202 1203 /* obsolete: ipc */ 1204 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second, 1205 unsigned long third, void __user *ptr, long fifth); 1206 1207 /* obsolete: mm/ */ 1208 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len, 1209 unsigned long prot, unsigned long flags, 1210 unsigned long fd, unsigned long pgoff); 1211 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg); 1212 1213 1214 /* 1215 * Not a real system call, but a placeholder for syscalls which are 1216 * not implemented -- see kernel/sys_ni.c 1217 */ 1218 asmlinkage long sys_ni_syscall(void); 1219 1220 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 1221 1222 1223 /* 1224 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly. 1225 * Instead, use one of the functions which work equivalently, such as 1226 * the ksys_xyzyyz() functions prototyped below. 1227 */ 1228 1229 int ksys_mount(char __user *dev_name, char __user *dir_name, char __user *type, 1230 unsigned long flags, void __user *data); 1231 int ksys_umount(char __user *name, int flags); 1232 int ksys_dup(unsigned int fildes); 1233 int ksys_chroot(const char __user *filename); 1234 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count); 1235 int ksys_chdir(const char __user *filename); 1236 int ksys_fchmod(unsigned int fd, umode_t mode); 1237 int ksys_fchown(unsigned int fd, uid_t user, gid_t group); 1238 int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent, 1239 unsigned int count); 1240 int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg); 1241 off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence); 1242 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count); 1243 void ksys_sync(void); 1244 int ksys_unshare(unsigned long unshare_flags); 1245 int ksys_setsid(void); 1246 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 1247 unsigned int flags); 1248 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count, 1249 loff_t pos); 1250 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf, 1251 size_t count, loff_t pos); 1252 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len); 1253 #ifdef CONFIG_ADVISE_SYSCALLS 1254 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 1255 #else 1256 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, 1257 int advice) 1258 { 1259 return -EINVAL; 1260 } 1261 #endif 1262 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len, 1263 unsigned long prot, unsigned long flags, 1264 unsigned long fd, unsigned long pgoff); 1265 ssize_t ksys_readahead(int fd, loff_t offset, size_t count); 1266 int ksys_ipc(unsigned int call, int first, unsigned long second, 1267 unsigned long third, void __user * ptr, long fifth); 1268 int compat_ksys_ipc(u32 call, int first, int second, 1269 u32 third, u32 ptr, u32 fifth); 1270 1271 /* 1272 * The following kernel syscall equivalents are just wrappers to fs-internal 1273 * functions. Therefore, provide stubs to be inlined at the callsites. 1274 */ 1275 extern long do_unlinkat(int dfd, struct filename *name); 1276 1277 static inline long ksys_unlink(const char __user *pathname) 1278 { 1279 return do_unlinkat(AT_FDCWD, getname(pathname)); 1280 } 1281 1282 extern long do_rmdir(int dfd, const char __user *pathname); 1283 1284 static inline long ksys_rmdir(const char __user *pathname) 1285 { 1286 return do_rmdir(AT_FDCWD, pathname); 1287 } 1288 1289 extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode); 1290 1291 static inline long ksys_mkdir(const char __user *pathname, umode_t mode) 1292 { 1293 return do_mkdirat(AT_FDCWD, pathname, mode); 1294 } 1295 1296 extern long do_symlinkat(const char __user *oldname, int newdfd, 1297 const char __user *newname); 1298 1299 static inline long ksys_symlink(const char __user *oldname, 1300 const char __user *newname) 1301 { 1302 return do_symlinkat(oldname, AT_FDCWD, newname); 1303 } 1304 1305 extern long do_mknodat(int dfd, const char __user *filename, umode_t mode, 1306 unsigned int dev); 1307 1308 static inline long ksys_mknod(const char __user *filename, umode_t mode, 1309 unsigned int dev) 1310 { 1311 return do_mknodat(AT_FDCWD, filename, mode, dev); 1312 } 1313 1314 extern int do_linkat(int olddfd, const char __user *oldname, int newdfd, 1315 const char __user *newname, int flags); 1316 1317 static inline long ksys_link(const char __user *oldname, 1318 const char __user *newname) 1319 { 1320 return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0); 1321 } 1322 1323 extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode); 1324 1325 static inline int ksys_chmod(const char __user *filename, umode_t mode) 1326 { 1327 return do_fchmodat(AT_FDCWD, filename, mode); 1328 } 1329 1330 extern long do_faccessat(int dfd, const char __user *filename, int mode); 1331 1332 static inline long ksys_access(const char __user *filename, int mode) 1333 { 1334 return do_faccessat(AT_FDCWD, filename, mode); 1335 } 1336 1337 extern int do_fchownat(int dfd, const char __user *filename, uid_t user, 1338 gid_t group, int flag); 1339 1340 static inline long ksys_chown(const char __user *filename, uid_t user, 1341 gid_t group) 1342 { 1343 return do_fchownat(AT_FDCWD, filename, user, group, 0); 1344 } 1345 1346 static inline long ksys_lchown(const char __user *filename, uid_t user, 1347 gid_t group) 1348 { 1349 return do_fchownat(AT_FDCWD, filename, user, group, 1350 AT_SYMLINK_NOFOLLOW); 1351 } 1352 1353 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small); 1354 1355 static inline long ksys_ftruncate(unsigned int fd, unsigned long length) 1356 { 1357 return do_sys_ftruncate(fd, length, 1); 1358 } 1359 1360 extern int __close_fd(struct files_struct *files, unsigned int fd); 1361 1362 /* 1363 * In contrast to sys_close(), this stub does not check whether the syscall 1364 * should or should not be restarted, but returns the raw error codes from 1365 * __close_fd(). 1366 */ 1367 static inline int ksys_close(unsigned int fd) 1368 { 1369 return __close_fd(current->files, fd); 1370 } 1371 1372 extern long do_sys_open(int dfd, const char __user *filename, int flags, 1373 umode_t mode); 1374 1375 static inline long ksys_open(const char __user *filename, int flags, 1376 umode_t mode) 1377 { 1378 if (force_o_largefile()) 1379 flags |= O_LARGEFILE; 1380 return do_sys_open(AT_FDCWD, filename, flags, mode); 1381 } 1382 1383 extern long do_sys_truncate(const char __user *pathname, loff_t length); 1384 1385 static inline long ksys_truncate(const char __user *pathname, loff_t length) 1386 { 1387 return do_sys_truncate(pathname, length); 1388 } 1389 1390 static inline unsigned int ksys_personality(unsigned int personality) 1391 { 1392 unsigned int old = current->personality; 1393 1394 if (personality != 0xffffffff) 1395 set_personality(personality); 1396 1397 return old; 1398 } 1399 1400 #endif 1401