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 __kernel_old_itimerval; 20 struct kexec_segment; 21 struct linux_dirent; 22 struct linux_dirent64; 23 struct list_head; 24 struct mmap_arg_struct; 25 struct msgbuf; 26 struct user_msghdr; 27 struct mmsghdr; 28 struct msqid_ds; 29 struct new_utsname; 30 struct nfsctl_arg; 31 struct __old_kernel_stat; 32 struct oldold_utsname; 33 struct old_utsname; 34 struct pollfd; 35 struct rlimit; 36 struct rlimit64; 37 struct rusage; 38 struct sched_param; 39 struct sched_attr; 40 struct sel_arg_struct; 41 struct semaphore; 42 struct sembuf; 43 struct shmid_ds; 44 struct sockaddr; 45 struct stat; 46 struct stat64; 47 struct statfs; 48 struct statfs64; 49 struct statx; 50 struct sysinfo; 51 struct timespec; 52 struct __kernel_old_timeval; 53 struct __kernel_timex; 54 struct timezone; 55 struct tms; 56 struct utimbuf; 57 struct mq_attr; 58 struct compat_stat; 59 struct old_timeval32; 60 struct robust_list_head; 61 struct getcpu_cache; 62 struct old_linux_dirent; 63 struct perf_event_attr; 64 struct file_handle; 65 struct sigaltstack; 66 struct rseq; 67 union bpf_attr; 68 struct io_uring_params; 69 struct clone_args; 70 struct open_how; 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(uaccess_kernel(), 266 "Invalid address limit on user-mode return")) 267 force_sig(SIGKILL); 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_faccessat2(int dfd, const char __user *filename, int mode, 431 int flags); 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_openat2(int dfd, const char __user *filename, 444 struct open_how *how, size_t size); 445 asmlinkage long sys_close(unsigned int fd); 446 asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd, 447 unsigned int flags); 448 asmlinkage long sys_vhangup(void); 449 450 /* fs/pipe.c */ 451 asmlinkage long sys_pipe2(int __user *fildes, int flags); 452 453 /* fs/quota.c */ 454 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special, 455 qid_t id, void __user *addr); 456 457 /* fs/readdir.c */ 458 asmlinkage long sys_getdents64(unsigned int fd, 459 struct linux_dirent64 __user *dirent, 460 unsigned int count); 461 462 /* fs/read_write.c */ 463 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high, 464 unsigned long offset_low, loff_t __user *result, 465 unsigned int whence); 466 asmlinkage long sys_lseek(unsigned int fd, off_t offset, 467 unsigned int whence); 468 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count); 469 asmlinkage long sys_write(unsigned int fd, const char __user *buf, 470 size_t count); 471 asmlinkage long sys_readv(unsigned long fd, 472 const struct iovec __user *vec, 473 unsigned long vlen); 474 asmlinkage long sys_writev(unsigned long fd, 475 const struct iovec __user *vec, 476 unsigned long vlen); 477 asmlinkage long sys_pread64(unsigned int fd, char __user *buf, 478 size_t count, loff_t pos); 479 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf, 480 size_t count, loff_t pos); 481 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec, 482 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 483 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec, 484 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 485 486 /* fs/sendfile.c */ 487 asmlinkage long sys_sendfile64(int out_fd, int in_fd, 488 loff_t __user *offset, size_t count); 489 490 /* fs/select.c */ 491 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *, 492 fd_set __user *, struct __kernel_timespec __user *, 493 void __user *); 494 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *, 495 fd_set __user *, struct old_timespec32 __user *, 496 void __user *); 497 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int, 498 struct __kernel_timespec __user *, const sigset_t __user *, 499 size_t); 500 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int, 501 struct old_timespec32 __user *, const sigset_t __user *, 502 size_t); 503 504 /* fs/signalfd.c */ 505 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags); 506 507 /* fs/splice.c */ 508 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov, 509 unsigned long nr_segs, unsigned int flags); 510 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in, 511 int fd_out, loff_t __user *off_out, 512 size_t len, unsigned int flags); 513 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags); 514 515 /* fs/stat.c */ 516 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf, 517 int bufsiz); 518 asmlinkage long sys_newfstatat(int dfd, const char __user *filename, 519 struct stat __user *statbuf, int flag); 520 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf); 521 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 522 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf); 523 asmlinkage long sys_fstatat64(int dfd, const char __user *filename, 524 struct stat64 __user *statbuf, int flag); 525 #endif 526 527 /* fs/sync.c */ 528 asmlinkage long sys_sync(void); 529 asmlinkage long sys_fsync(unsigned int fd); 530 asmlinkage long sys_fdatasync(unsigned int fd); 531 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags, 532 loff_t offset, loff_t nbytes); 533 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 534 unsigned int flags); 535 536 /* fs/timerfd.c */ 537 asmlinkage long sys_timerfd_create(int clockid, int flags); 538 asmlinkage long sys_timerfd_settime(int ufd, int flags, 539 const struct __kernel_itimerspec __user *utmr, 540 struct __kernel_itimerspec __user *otmr); 541 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr); 542 asmlinkage long sys_timerfd_gettime32(int ufd, 543 struct old_itimerspec32 __user *otmr); 544 asmlinkage long sys_timerfd_settime32(int ufd, int flags, 545 const struct old_itimerspec32 __user *utmr, 546 struct old_itimerspec32 __user *otmr); 547 548 /* fs/utimes.c */ 549 asmlinkage long sys_utimensat(int dfd, const char __user *filename, 550 struct __kernel_timespec __user *utimes, 551 int flags); 552 asmlinkage long sys_utimensat_time32(unsigned int dfd, 553 const char __user *filename, 554 struct old_timespec32 __user *t, int flags); 555 556 /* kernel/acct.c */ 557 asmlinkage long sys_acct(const char __user *name); 558 559 /* kernel/capability.c */ 560 asmlinkage long sys_capget(cap_user_header_t header, 561 cap_user_data_t dataptr); 562 asmlinkage long sys_capset(cap_user_header_t header, 563 const cap_user_data_t data); 564 565 /* kernel/exec_domain.c */ 566 asmlinkage long sys_personality(unsigned int personality); 567 568 /* kernel/exit.c */ 569 asmlinkage long sys_exit(int error_code); 570 asmlinkage long sys_exit_group(int error_code); 571 asmlinkage long sys_waitid(int which, pid_t pid, 572 struct siginfo __user *infop, 573 int options, struct rusage __user *ru); 574 575 /* kernel/fork.c */ 576 asmlinkage long sys_set_tid_address(int __user *tidptr); 577 asmlinkage long sys_unshare(unsigned long unshare_flags); 578 579 /* kernel/futex.c */ 580 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val, 581 struct __kernel_timespec __user *utime, u32 __user *uaddr2, 582 u32 val3); 583 asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val, 584 struct old_timespec32 __user *utime, u32 __user *uaddr2, 585 u32 val3); 586 asmlinkage long sys_get_robust_list(int pid, 587 struct robust_list_head __user * __user *head_ptr, 588 size_t __user *len_ptr); 589 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, 590 size_t len); 591 592 /* kernel/hrtimer.c */ 593 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp, 594 struct __kernel_timespec __user *rmtp); 595 asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp, 596 struct old_timespec32 __user *rmtp); 597 598 /* kernel/itimer.c */ 599 asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value); 600 asmlinkage long sys_setitimer(int which, 601 struct __kernel_old_itimerval __user *value, 602 struct __kernel_old_itimerval __user *ovalue); 603 604 /* kernel/kexec.c */ 605 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments, 606 struct kexec_segment __user *segments, 607 unsigned long flags); 608 609 /* kernel/module.c */ 610 asmlinkage long sys_init_module(void __user *umod, unsigned long len, 611 const char __user *uargs); 612 asmlinkage long sys_delete_module(const char __user *name_user, 613 unsigned int flags); 614 615 /* kernel/posix-timers.c */ 616 asmlinkage long sys_timer_create(clockid_t which_clock, 617 struct sigevent __user *timer_event_spec, 618 timer_t __user * created_timer_id); 619 asmlinkage long sys_timer_gettime(timer_t timer_id, 620 struct __kernel_itimerspec __user *setting); 621 asmlinkage long sys_timer_getoverrun(timer_t timer_id); 622 asmlinkage long sys_timer_settime(timer_t timer_id, int flags, 623 const struct __kernel_itimerspec __user *new_setting, 624 struct __kernel_itimerspec __user *old_setting); 625 asmlinkage long sys_timer_delete(timer_t timer_id); 626 asmlinkage long sys_clock_settime(clockid_t which_clock, 627 const struct __kernel_timespec __user *tp); 628 asmlinkage long sys_clock_gettime(clockid_t which_clock, 629 struct __kernel_timespec __user *tp); 630 asmlinkage long sys_clock_getres(clockid_t which_clock, 631 struct __kernel_timespec __user *tp); 632 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags, 633 const struct __kernel_timespec __user *rqtp, 634 struct __kernel_timespec __user *rmtp); 635 asmlinkage long sys_timer_gettime32(timer_t timer_id, 636 struct old_itimerspec32 __user *setting); 637 asmlinkage long sys_timer_settime32(timer_t timer_id, int flags, 638 struct old_itimerspec32 __user *new, 639 struct old_itimerspec32 __user *old); 640 asmlinkage long sys_clock_settime32(clockid_t which_clock, 641 struct old_timespec32 __user *tp); 642 asmlinkage long sys_clock_gettime32(clockid_t which_clock, 643 struct old_timespec32 __user *tp); 644 asmlinkage long sys_clock_getres_time32(clockid_t which_clock, 645 struct old_timespec32 __user *tp); 646 asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags, 647 struct old_timespec32 __user *rqtp, 648 struct old_timespec32 __user *rmtp); 649 650 /* kernel/printk.c */ 651 asmlinkage long sys_syslog(int type, char __user *buf, int len); 652 653 /* kernel/ptrace.c */ 654 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, 655 unsigned long data); 656 /* kernel/sched/core.c */ 657 658 asmlinkage long sys_sched_setparam(pid_t pid, 659 struct sched_param __user *param); 660 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy, 661 struct sched_param __user *param); 662 asmlinkage long sys_sched_getscheduler(pid_t pid); 663 asmlinkage long sys_sched_getparam(pid_t pid, 664 struct sched_param __user *param); 665 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len, 666 unsigned long __user *user_mask_ptr); 667 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len, 668 unsigned long __user *user_mask_ptr); 669 asmlinkage long sys_sched_yield(void); 670 asmlinkage long sys_sched_get_priority_max(int policy); 671 asmlinkage long sys_sched_get_priority_min(int policy); 672 asmlinkage long sys_sched_rr_get_interval(pid_t pid, 673 struct __kernel_timespec __user *interval); 674 asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid, 675 struct old_timespec32 __user *interval); 676 677 /* kernel/signal.c */ 678 asmlinkage long sys_restart_syscall(void); 679 asmlinkage long sys_kill(pid_t pid, int sig); 680 asmlinkage long sys_tkill(pid_t pid, int sig); 681 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig); 682 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss, 683 struct sigaltstack __user *uoss); 684 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize); 685 #ifndef CONFIG_ODD_RT_SIGACTION 686 asmlinkage long sys_rt_sigaction(int, 687 const struct sigaction __user *, 688 struct sigaction __user *, 689 size_t); 690 #endif 691 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set, 692 sigset_t __user *oset, size_t sigsetsize); 693 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize); 694 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese, 695 siginfo_t __user *uinfo, 696 const struct __kernel_timespec __user *uts, 697 size_t sigsetsize); 698 asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese, 699 siginfo_t __user *uinfo, 700 const struct old_timespec32 __user *uts, 701 size_t sigsetsize); 702 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo); 703 704 /* kernel/sys.c */ 705 asmlinkage long sys_setpriority(int which, int who, int niceval); 706 asmlinkage long sys_getpriority(int which, int who); 707 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, 708 void __user *arg); 709 asmlinkage long sys_setregid(gid_t rgid, gid_t egid); 710 asmlinkage long sys_setgid(gid_t gid); 711 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid); 712 asmlinkage long sys_setuid(uid_t uid); 713 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid); 714 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid); 715 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid); 716 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid); 717 asmlinkage long sys_setfsuid(uid_t uid); 718 asmlinkage long sys_setfsgid(gid_t gid); 719 asmlinkage long sys_times(struct tms __user *tbuf); 720 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid); 721 asmlinkage long sys_getpgid(pid_t pid); 722 asmlinkage long sys_getsid(pid_t pid); 723 asmlinkage long sys_setsid(void); 724 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist); 725 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist); 726 asmlinkage long sys_newuname(struct new_utsname __user *name); 727 asmlinkage long sys_sethostname(char __user *name, int len); 728 asmlinkage long sys_setdomainname(char __user *name, int len); 729 asmlinkage long sys_getrlimit(unsigned int resource, 730 struct rlimit __user *rlim); 731 asmlinkage long sys_setrlimit(unsigned int resource, 732 struct rlimit __user *rlim); 733 asmlinkage long sys_getrusage(int who, struct rusage __user *ru); 734 asmlinkage long sys_umask(int mask); 735 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, 736 unsigned long arg4, unsigned long arg5); 737 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache); 738 739 /* kernel/time.c */ 740 asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv, 741 struct timezone __user *tz); 742 asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv, 743 struct timezone __user *tz); 744 asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p); 745 asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p); 746 747 /* kernel/timer.c */ 748 asmlinkage long sys_getpid(void); 749 asmlinkage long sys_getppid(void); 750 asmlinkage long sys_getuid(void); 751 asmlinkage long sys_geteuid(void); 752 asmlinkage long sys_getgid(void); 753 asmlinkage long sys_getegid(void); 754 asmlinkage long sys_gettid(void); 755 asmlinkage long sys_sysinfo(struct sysinfo __user *info); 756 757 /* ipc/mqueue.c */ 758 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr); 759 asmlinkage long sys_mq_unlink(const char __user *name); 760 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); 761 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); 762 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification); 763 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat); 764 asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes, 765 char __user *u_msg_ptr, 766 unsigned int msg_len, unsigned int __user *u_msg_prio, 767 const struct old_timespec32 __user *u_abs_timeout); 768 asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes, 769 const char __user *u_msg_ptr, 770 unsigned int msg_len, unsigned int msg_prio, 771 const struct old_timespec32 __user *u_abs_timeout); 772 773 /* ipc/msg.c */ 774 asmlinkage long sys_msgget(key_t key, int msgflg); 775 asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 776 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 777 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp, 778 size_t msgsz, long msgtyp, int msgflg); 779 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp, 780 size_t msgsz, int msgflg); 781 782 /* ipc/sem.c */ 783 asmlinkage long sys_semget(key_t key, int nsems, int semflg); 784 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg); 785 asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg); 786 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops, 787 unsigned nsops, 788 const struct __kernel_timespec __user *timeout); 789 asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops, 790 unsigned nsops, 791 const struct old_timespec32 __user *timeout); 792 asmlinkage long sys_semop(int semid, struct sembuf __user *sops, 793 unsigned nsops); 794 795 /* ipc/shm.c */ 796 asmlinkage long sys_shmget(key_t key, size_t size, int flag); 797 asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 798 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 799 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg); 800 asmlinkage long sys_shmdt(char __user *shmaddr); 801 802 /* net/socket.c */ 803 asmlinkage long sys_socket(int, int, int); 804 asmlinkage long sys_socketpair(int, int, int, int __user *); 805 asmlinkage long sys_bind(int, struct sockaddr __user *, int); 806 asmlinkage long sys_listen(int, int); 807 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *); 808 asmlinkage long sys_connect(int, struct sockaddr __user *, int); 809 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *); 810 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *); 811 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned, 812 struct sockaddr __user *, int); 813 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned, 814 struct sockaddr __user *, int __user *); 815 asmlinkage long sys_setsockopt(int fd, int level, int optname, 816 char __user *optval, int optlen); 817 asmlinkage long sys_getsockopt(int fd, int level, int optname, 818 char __user *optval, int __user *optlen); 819 asmlinkage long sys_shutdown(int, int); 820 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 821 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 822 823 /* mm/filemap.c */ 824 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count); 825 826 /* mm/nommu.c, also with MMU */ 827 asmlinkage long sys_brk(unsigned long brk); 828 asmlinkage long sys_munmap(unsigned long addr, size_t len); 829 asmlinkage long sys_mremap(unsigned long addr, 830 unsigned long old_len, unsigned long new_len, 831 unsigned long flags, unsigned long new_addr); 832 833 /* security/keys/keyctl.c */ 834 asmlinkage long sys_add_key(const char __user *_type, 835 const char __user *_description, 836 const void __user *_payload, 837 size_t plen, 838 key_serial_t destringid); 839 asmlinkage long sys_request_key(const char __user *_type, 840 const char __user *_description, 841 const char __user *_callout_info, 842 key_serial_t destringid); 843 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3, 844 unsigned long arg4, unsigned long arg5); 845 846 /* arch/example/kernel/sys_example.c */ 847 #ifdef CONFIG_CLONE_BACKWARDS 848 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long, 849 int __user *); 850 #else 851 #ifdef CONFIG_CLONE_BACKWARDS3 852 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *, 853 int __user *, unsigned long); 854 #else 855 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, 856 int __user *, unsigned long); 857 #endif 858 #endif 859 860 asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size); 861 862 asmlinkage long sys_execve(const char __user *filename, 863 const char __user *const __user *argv, 864 const char __user *const __user *envp); 865 866 /* mm/fadvise.c */ 867 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 868 869 /* mm/, CONFIG_MMU only */ 870 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags); 871 asmlinkage long sys_swapoff(const char __user *specialfile); 872 asmlinkage long sys_mprotect(unsigned long start, size_t len, 873 unsigned long prot); 874 asmlinkage long sys_msync(unsigned long start, size_t len, int flags); 875 asmlinkage long sys_mlock(unsigned long start, size_t len); 876 asmlinkage long sys_munlock(unsigned long start, size_t len); 877 asmlinkage long sys_mlockall(int flags); 878 asmlinkage long sys_munlockall(void); 879 asmlinkage long sys_mincore(unsigned long start, size_t len, 880 unsigned char __user * vec); 881 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior); 882 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, 883 unsigned long prot, unsigned long pgoff, 884 unsigned long flags); 885 asmlinkage long sys_mbind(unsigned long start, unsigned long len, 886 unsigned long mode, 887 const unsigned long __user *nmask, 888 unsigned long maxnode, 889 unsigned flags); 890 asmlinkage long sys_get_mempolicy(int __user *policy, 891 unsigned long __user *nmask, 892 unsigned long maxnode, 893 unsigned long addr, unsigned long flags); 894 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask, 895 unsigned long maxnode); 896 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode, 897 const unsigned long __user *from, 898 const unsigned long __user *to); 899 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages, 900 const void __user * __user *pages, 901 const int __user *nodes, 902 int __user *status, 903 int flags); 904 905 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, 906 siginfo_t __user *uinfo); 907 asmlinkage long sys_perf_event_open( 908 struct perf_event_attr __user *attr_uptr, 909 pid_t pid, int cpu, int group_fd, unsigned long flags); 910 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int); 911 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg, 912 unsigned int vlen, unsigned flags, 913 struct __kernel_timespec __user *timeout); 914 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg, 915 unsigned int vlen, unsigned flags, 916 struct old_timespec32 __user *timeout); 917 918 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr, 919 int options, struct rusage __user *ru); 920 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource, 921 const struct rlimit64 __user *new_rlim, 922 struct rlimit64 __user *old_rlim); 923 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags); 924 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags, 925 u64 mask, int fd, 926 const char __user *pathname); 927 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name, 928 struct file_handle __user *handle, 929 int __user *mnt_id, int flag); 930 asmlinkage long sys_open_by_handle_at(int mountdirfd, 931 struct file_handle __user *handle, 932 int flags); 933 asmlinkage long sys_clock_adjtime(clockid_t which_clock, 934 struct __kernel_timex __user *tx); 935 asmlinkage long sys_clock_adjtime32(clockid_t which_clock, 936 struct old_timex32 __user *tx); 937 asmlinkage long sys_syncfs(int fd); 938 asmlinkage long sys_setns(int fd, int nstype); 939 asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags); 940 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg, 941 unsigned int vlen, unsigned flags); 942 asmlinkage long sys_process_vm_readv(pid_t pid, 943 const struct iovec __user *lvec, 944 unsigned long liovcnt, 945 const struct iovec __user *rvec, 946 unsigned long riovcnt, 947 unsigned long flags); 948 asmlinkage long sys_process_vm_writev(pid_t pid, 949 const struct iovec __user *lvec, 950 unsigned long liovcnt, 951 const struct iovec __user *rvec, 952 unsigned long riovcnt, 953 unsigned long flags); 954 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type, 955 unsigned long idx1, unsigned long idx2); 956 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags); 957 asmlinkage long sys_sched_setattr(pid_t pid, 958 struct sched_attr __user *attr, 959 unsigned int flags); 960 asmlinkage long sys_sched_getattr(pid_t pid, 961 struct sched_attr __user *attr, 962 unsigned int size, 963 unsigned int flags); 964 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname, 965 int newdfd, const char __user *newname, 966 unsigned int flags); 967 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, 968 void __user *uargs); 969 asmlinkage long sys_getrandom(char __user *buf, size_t count, 970 unsigned int flags); 971 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags); 972 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size); 973 asmlinkage long sys_execveat(int dfd, const char __user *filename, 974 const char __user *const __user *argv, 975 const char __user *const __user *envp, int flags); 976 asmlinkage long sys_userfaultfd(int flags); 977 asmlinkage long sys_membarrier(int cmd, int flags); 978 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags); 979 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in, 980 int fd_out, loff_t __user *off_out, 981 size_t len, unsigned int flags); 982 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec, 983 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 984 rwf_t flags); 985 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec, 986 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 987 rwf_t flags); 988 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len, 989 unsigned long prot, int pkey); 990 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val); 991 asmlinkage long sys_pkey_free(int pkey); 992 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags, 993 unsigned mask, struct statx __user *buffer); 994 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len, 995 int flags, uint32_t sig); 996 asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags); 997 asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path, 998 int to_dfd, const char __user *to_path, 999 unsigned int ms_flags); 1000 asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags); 1001 asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key, 1002 const void __user *value, int aux); 1003 asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags); 1004 asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags); 1005 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig, 1006 siginfo_t __user *info, 1007 unsigned int flags); 1008 asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags); 1009 1010 /* 1011 * Architecture-specific system calls 1012 */ 1013 1014 /* arch/x86/kernel/ioport.c */ 1015 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); 1016 1017 /* pciconfig: alpha, arm, arm64, ia64, sparc */ 1018 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn, 1019 unsigned long off, unsigned long len, 1020 void __user *buf); 1021 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn, 1022 unsigned long off, unsigned long len, 1023 void __user *buf); 1024 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn); 1025 1026 /* powerpc */ 1027 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc, 1028 __u32 __user *ustatus); 1029 asmlinkage long sys_spu_create(const char __user *name, 1030 unsigned int flags, umode_t mode, int fd); 1031 1032 1033 /* 1034 * Deprecated system calls which are still defined in 1035 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch 1036 */ 1037 1038 /* __ARCH_WANT_SYSCALL_NO_AT */ 1039 asmlinkage long sys_open(const char __user *filename, 1040 int flags, umode_t mode); 1041 asmlinkage long sys_link(const char __user *oldname, 1042 const char __user *newname); 1043 asmlinkage long sys_unlink(const char __user *pathname); 1044 asmlinkage long sys_mknod(const char __user *filename, umode_t mode, 1045 unsigned dev); 1046 asmlinkage long sys_chmod(const char __user *filename, umode_t mode); 1047 asmlinkage long sys_chown(const char __user *filename, 1048 uid_t user, gid_t group); 1049 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode); 1050 asmlinkage long sys_rmdir(const char __user *pathname); 1051 asmlinkage long sys_lchown(const char __user *filename, 1052 uid_t user, gid_t group); 1053 asmlinkage long sys_access(const char __user *filename, int mode); 1054 asmlinkage long sys_rename(const char __user *oldname, 1055 const char __user *newname); 1056 asmlinkage long sys_symlink(const char __user *old, const char __user *new); 1057 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 1058 asmlinkage long sys_stat64(const char __user *filename, 1059 struct stat64 __user *statbuf); 1060 asmlinkage long sys_lstat64(const char __user *filename, 1061 struct stat64 __user *statbuf); 1062 #endif 1063 1064 /* __ARCH_WANT_SYSCALL_NO_FLAGS */ 1065 asmlinkage long sys_pipe(int __user *fildes); 1066 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd); 1067 asmlinkage long sys_epoll_create(int size); 1068 asmlinkage long sys_inotify_init(void); 1069 asmlinkage long sys_eventfd(unsigned int count); 1070 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask); 1071 1072 /* __ARCH_WANT_SYSCALL_OFF_T */ 1073 asmlinkage long sys_sendfile(int out_fd, int in_fd, 1074 off_t __user *offset, size_t count); 1075 asmlinkage long sys_newstat(const char __user *filename, 1076 struct stat __user *statbuf); 1077 asmlinkage long sys_newlstat(const char __user *filename, 1078 struct stat __user *statbuf); 1079 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice); 1080 1081 /* __ARCH_WANT_SYSCALL_DEPRECATED */ 1082 asmlinkage long sys_alarm(unsigned int seconds); 1083 asmlinkage long sys_getpgrp(void); 1084 asmlinkage long sys_pause(void); 1085 asmlinkage long sys_time(__kernel_old_time_t __user *tloc); 1086 asmlinkage long sys_time32(old_time32_t __user *tloc); 1087 #ifdef __ARCH_WANT_SYS_UTIME 1088 asmlinkage long sys_utime(char __user *filename, 1089 struct utimbuf __user *times); 1090 asmlinkage long sys_utimes(char __user *filename, 1091 struct __kernel_old_timeval __user *utimes); 1092 asmlinkage long sys_futimesat(int dfd, const char __user *filename, 1093 struct __kernel_old_timeval __user *utimes); 1094 #endif 1095 asmlinkage long sys_futimesat_time32(unsigned int dfd, 1096 const char __user *filename, 1097 struct old_timeval32 __user *t); 1098 asmlinkage long sys_utime32(const char __user *filename, 1099 struct old_utimbuf32 __user *t); 1100 asmlinkage long sys_utimes_time32(const char __user *filename, 1101 struct old_timeval32 __user *t); 1102 asmlinkage long sys_creat(const char __user *pathname, umode_t mode); 1103 asmlinkage long sys_getdents(unsigned int fd, 1104 struct linux_dirent __user *dirent, 1105 unsigned int count); 1106 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp, 1107 fd_set __user *exp, struct __kernel_old_timeval __user *tvp); 1108 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds, 1109 int timeout); 1110 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, 1111 int maxevents, int timeout); 1112 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf); 1113 asmlinkage long sys_vfork(void); 1114 asmlinkage long sys_recv(int, void __user *, size_t, unsigned); 1115 asmlinkage long sys_send(int, void __user *, size_t, unsigned); 1116 asmlinkage long sys_bdflush(int func, long data); 1117 asmlinkage long sys_oldumount(char __user *name); 1118 asmlinkage long sys_uselib(const char __user *library); 1119 asmlinkage long sys_sysfs(int option, 1120 unsigned long arg1, unsigned long arg2); 1121 asmlinkage long sys_fork(void); 1122 1123 /* obsolete: kernel/time/time.c */ 1124 asmlinkage long sys_stime(__kernel_old_time_t __user *tptr); 1125 asmlinkage long sys_stime32(old_time32_t __user *tptr); 1126 1127 /* obsolete: kernel/signal.c */ 1128 asmlinkage long sys_sigpending(old_sigset_t __user *uset); 1129 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set, 1130 old_sigset_t __user *oset); 1131 #ifdef CONFIG_OLD_SIGSUSPEND 1132 asmlinkage long sys_sigsuspend(old_sigset_t mask); 1133 #endif 1134 1135 #ifdef CONFIG_OLD_SIGSUSPEND3 1136 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask); 1137 #endif 1138 1139 #ifdef CONFIG_OLD_SIGACTION 1140 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *, 1141 struct old_sigaction __user *); 1142 #endif 1143 asmlinkage long sys_sgetmask(void); 1144 asmlinkage long sys_ssetmask(int newmask); 1145 asmlinkage long sys_signal(int sig, __sighandler_t handler); 1146 1147 /* obsolete: kernel/sched/core.c */ 1148 asmlinkage long sys_nice(int increment); 1149 1150 /* obsolete: kernel/kexec_file.c */ 1151 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd, 1152 unsigned long cmdline_len, 1153 const char __user *cmdline_ptr, 1154 unsigned long flags); 1155 1156 /* obsolete: kernel/exit.c */ 1157 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options); 1158 1159 /* obsolete: kernel/uid16.c */ 1160 #ifdef CONFIG_HAVE_UID16 1161 asmlinkage long sys_chown16(const char __user *filename, 1162 old_uid_t user, old_gid_t group); 1163 asmlinkage long sys_lchown16(const char __user *filename, 1164 old_uid_t user, old_gid_t group); 1165 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group); 1166 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid); 1167 asmlinkage long sys_setgid16(old_gid_t gid); 1168 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid); 1169 asmlinkage long sys_setuid16(old_uid_t uid); 1170 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid); 1171 asmlinkage long sys_getresuid16(old_uid_t __user *ruid, 1172 old_uid_t __user *euid, old_uid_t __user *suid); 1173 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid); 1174 asmlinkage long sys_getresgid16(old_gid_t __user *rgid, 1175 old_gid_t __user *egid, old_gid_t __user *sgid); 1176 asmlinkage long sys_setfsuid16(old_uid_t uid); 1177 asmlinkage long sys_setfsgid16(old_gid_t gid); 1178 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist); 1179 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist); 1180 asmlinkage long sys_getuid16(void); 1181 asmlinkage long sys_geteuid16(void); 1182 asmlinkage long sys_getgid16(void); 1183 asmlinkage long sys_getegid16(void); 1184 #endif 1185 1186 /* obsolete: net/socket.c */ 1187 asmlinkage long sys_socketcall(int call, unsigned long __user *args); 1188 1189 /* obsolete: fs/stat.c */ 1190 asmlinkage long sys_stat(const char __user *filename, 1191 struct __old_kernel_stat __user *statbuf); 1192 asmlinkage long sys_lstat(const char __user *filename, 1193 struct __old_kernel_stat __user *statbuf); 1194 asmlinkage long sys_fstat(unsigned int fd, 1195 struct __old_kernel_stat __user *statbuf); 1196 asmlinkage long sys_readlink(const char __user *path, 1197 char __user *buf, int bufsiz); 1198 1199 /* obsolete: fs/select.c */ 1200 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg); 1201 1202 /* obsolete: fs/readdir.c */ 1203 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int); 1204 1205 /* obsolete: kernel/sys.c */ 1206 asmlinkage long sys_gethostname(char __user *name, int len); 1207 asmlinkage long sys_uname(struct old_utsname __user *); 1208 asmlinkage long sys_olduname(struct oldold_utsname __user *); 1209 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT 1210 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim); 1211 #endif 1212 1213 /* obsolete: ipc */ 1214 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second, 1215 unsigned long third, void __user *ptr, long fifth); 1216 1217 /* obsolete: mm/ */ 1218 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len, 1219 unsigned long prot, unsigned long flags, 1220 unsigned long fd, unsigned long pgoff); 1221 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg); 1222 1223 1224 /* 1225 * Not a real system call, but a placeholder for syscalls which are 1226 * not implemented -- see kernel/sys_ni.c 1227 */ 1228 asmlinkage long sys_ni_syscall(void); 1229 1230 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 1231 1232 1233 /* 1234 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly. 1235 * Instead, use one of the functions which work equivalently, such as 1236 * the ksys_xyzyyz() functions prototyped below. 1237 */ 1238 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count); 1239 int ksys_fchown(unsigned int fd, uid_t user, gid_t group); 1240 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count); 1241 void ksys_sync(void); 1242 int ksys_unshare(unsigned long unshare_flags); 1243 int ksys_setsid(void); 1244 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 1245 unsigned int flags); 1246 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count, 1247 loff_t pos); 1248 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf, 1249 size_t count, loff_t pos); 1250 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len); 1251 #ifdef CONFIG_ADVISE_SYSCALLS 1252 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 1253 #else 1254 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, 1255 int advice) 1256 { 1257 return -EINVAL; 1258 } 1259 #endif 1260 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len, 1261 unsigned long prot, unsigned long flags, 1262 unsigned long fd, unsigned long pgoff); 1263 ssize_t ksys_readahead(int fd, loff_t offset, size_t count); 1264 int ksys_ipc(unsigned int call, int first, unsigned long second, 1265 unsigned long third, void __user * ptr, long fifth); 1266 int compat_ksys_ipc(u32 call, int first, int second, 1267 u32 third, u32 ptr, u32 fifth); 1268 1269 /* 1270 * The following kernel syscall equivalents are just wrappers to fs-internal 1271 * functions. Therefore, provide stubs to be inlined at the callsites. 1272 */ 1273 extern int do_fchownat(int dfd, const char __user *filename, uid_t user, 1274 gid_t group, int flag); 1275 1276 static inline long ksys_chown(const char __user *filename, uid_t user, 1277 gid_t group) 1278 { 1279 return do_fchownat(AT_FDCWD, filename, user, group, 0); 1280 } 1281 1282 static inline long ksys_lchown(const char __user *filename, uid_t user, 1283 gid_t group) 1284 { 1285 return do_fchownat(AT_FDCWD, filename, user, group, 1286 AT_SYMLINK_NOFOLLOW); 1287 } 1288 1289 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small); 1290 1291 static inline long ksys_ftruncate(unsigned int fd, loff_t length) 1292 { 1293 return do_sys_ftruncate(fd, length, 1); 1294 } 1295 1296 extern int __close_fd(struct files_struct *files, unsigned int fd); 1297 1298 /* 1299 * In contrast to sys_close(), this stub does not check whether the syscall 1300 * should or should not be restarted, but returns the raw error codes from 1301 * __close_fd(). 1302 */ 1303 static inline int ksys_close(unsigned int fd) 1304 { 1305 return __close_fd(current->files, fd); 1306 } 1307 1308 extern long do_sys_truncate(const char __user *pathname, loff_t length); 1309 1310 static inline long ksys_truncate(const char __user *pathname, loff_t length) 1311 { 1312 return do_sys_truncate(pathname, length); 1313 } 1314 1315 static inline unsigned int ksys_personality(unsigned int personality) 1316 { 1317 unsigned int old = current->personality; 1318 1319 if (personality != 0xffffffff) 1320 set_personality(personality); 1321 1322 return old; 1323 } 1324 1325 /* for __ARCH_WANT_SYS_IPC */ 1326 long ksys_semtimedop(int semid, struct sembuf __user *tsops, 1327 unsigned int nsops, 1328 const struct __kernel_timespec __user *timeout); 1329 long ksys_semget(key_t key, int nsems, int semflg); 1330 long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg); 1331 long ksys_msgget(key_t key, int msgflg); 1332 long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 1333 long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz, 1334 long msgtyp, int msgflg); 1335 long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz, 1336 int msgflg); 1337 long ksys_shmget(key_t key, size_t size, int shmflg); 1338 long ksys_shmdt(char __user *shmaddr); 1339 long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 1340 long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems, 1341 unsigned int nsops, 1342 const struct old_timespec32 __user *timeout); 1343 1344 int __sys_getsockopt(int fd, int level, int optname, char __user *optval, 1345 int __user *optlen); 1346 int __sys_setsockopt(int fd, int level, int optname, char __user *optval, 1347 int optlen); 1348 #endif 1349