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 __kernel_old_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 struct clone_args; 72 struct open_how; 73 74 #include <linux/types.h> 75 #include <linux/aio_abi.h> 76 #include <linux/capability.h> 77 #include <linux/signal.h> 78 #include <linux/list.h> 79 #include <linux/bug.h> 80 #include <linux/sem.h> 81 #include <asm/siginfo.h> 82 #include <linux/unistd.h> 83 #include <linux/quota.h> 84 #include <linux/key.h> 85 #include <linux/personality.h> 86 #include <trace/syscall.h> 87 88 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 89 /* 90 * It may be useful for an architecture to override the definitions of the 91 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a 92 * different calling convention for syscalls. To allow for that, the prototypes 93 * for the sys_*() functions below will *not* be included if 94 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 95 */ 96 #include <asm/syscall_wrapper.h> 97 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 98 99 /* 100 * __MAP - apply a macro to syscall arguments 101 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to 102 * m(t1, a1), m(t2, a2), ..., m(tn, an) 103 * The first argument must be equal to the amount of type/name 104 * pairs given. Note that this list of pairs (i.e. the arguments 105 * of __MAP starting at the third one) is in the same format as 106 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n> 107 */ 108 #define __MAP0(m,...) 109 #define __MAP1(m,t,a,...) m(t,a) 110 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__) 111 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__) 112 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__) 113 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__) 114 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__) 115 #define __MAP(n,...) __MAP##n(__VA_ARGS__) 116 117 #define __SC_DECL(t, a) t a 118 #define __TYPE_AS(t, v) __same_type((__force t)0, v) 119 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L)) 120 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL)) 121 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL)) 122 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a 123 #define __SC_CAST(t, a) (__force t) a 124 #define __SC_ARGS(t, a) a 125 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long)) 126 127 #ifdef CONFIG_FTRACE_SYSCALLS 128 #define __SC_STR_ADECL(t, a) #a 129 #define __SC_STR_TDECL(t, a) #t 130 131 extern struct trace_event_class event_class_syscall_enter; 132 extern struct trace_event_class event_class_syscall_exit; 133 extern struct trace_event_functions enter_syscall_print_funcs; 134 extern struct trace_event_functions exit_syscall_print_funcs; 135 136 #define SYSCALL_TRACE_ENTER_EVENT(sname) \ 137 static struct syscall_metadata __syscall_meta_##sname; \ 138 static struct trace_event_call __used \ 139 event_enter_##sname = { \ 140 .class = &event_class_syscall_enter, \ 141 { \ 142 .name = "sys_enter"#sname, \ 143 }, \ 144 .event.funcs = &enter_syscall_print_funcs, \ 145 .data = (void *)&__syscall_meta_##sname,\ 146 .flags = TRACE_EVENT_FL_CAP_ANY, \ 147 }; \ 148 static struct trace_event_call __used \ 149 __attribute__((section("_ftrace_events"))) \ 150 *__event_enter_##sname = &event_enter_##sname; 151 152 #define SYSCALL_TRACE_EXIT_EVENT(sname) \ 153 static struct syscall_metadata __syscall_meta_##sname; \ 154 static struct trace_event_call __used \ 155 event_exit_##sname = { \ 156 .class = &event_class_syscall_exit, \ 157 { \ 158 .name = "sys_exit"#sname, \ 159 }, \ 160 .event.funcs = &exit_syscall_print_funcs, \ 161 .data = (void *)&__syscall_meta_##sname,\ 162 .flags = TRACE_EVENT_FL_CAP_ANY, \ 163 }; \ 164 static struct trace_event_call __used \ 165 __attribute__((section("_ftrace_events"))) \ 166 *__event_exit_##sname = &event_exit_##sname; 167 168 #define SYSCALL_METADATA(sname, nb, ...) \ 169 static const char *types_##sname[] = { \ 170 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \ 171 }; \ 172 static const char *args_##sname[] = { \ 173 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \ 174 }; \ 175 SYSCALL_TRACE_ENTER_EVENT(sname); \ 176 SYSCALL_TRACE_EXIT_EVENT(sname); \ 177 static struct syscall_metadata __used \ 178 __syscall_meta_##sname = { \ 179 .name = "sys"#sname, \ 180 .syscall_nr = -1, /* Filled in at boot */ \ 181 .nb_args = nb, \ 182 .types = nb ? types_##sname : NULL, \ 183 .args = nb ? args_##sname : NULL, \ 184 .enter_event = &event_enter_##sname, \ 185 .exit_event = &event_exit_##sname, \ 186 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \ 187 }; \ 188 static struct syscall_metadata __used \ 189 __attribute__((section("__syscalls_metadata"))) \ 190 *__p_syscall_meta_##sname = &__syscall_meta_##sname; 191 192 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 193 { 194 return tp_event->class == &event_class_syscall_enter || 195 tp_event->class == &event_class_syscall_exit; 196 } 197 198 #else 199 #define SYSCALL_METADATA(sname, nb, ...) 200 201 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 202 { 203 return 0; 204 } 205 #endif 206 207 #ifndef SYSCALL_DEFINE0 208 #define SYSCALL_DEFINE0(sname) \ 209 SYSCALL_METADATA(_##sname, 0); \ 210 asmlinkage long sys_##sname(void); \ 211 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \ 212 asmlinkage long sys_##sname(void) 213 #endif /* SYSCALL_DEFINE0 */ 214 215 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__) 216 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__) 217 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) 218 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__) 219 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) 220 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) 221 222 #define SYSCALL_DEFINE_MAXARGS 6 223 224 #define SYSCALL_DEFINEx(x, sname, ...) \ 225 SYSCALL_METADATA(sname, x, __VA_ARGS__) \ 226 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) 227 228 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__) 229 230 /* 231 * The asmlinkage stub is aliased to a function named __se_sys_*() which 232 * sign-extends 32-bit ints to longs whenever needed. The actual work is 233 * done within __do_sys_*(). 234 */ 235 #ifndef __SYSCALL_DEFINEx 236 #define __SYSCALL_DEFINEx(x, name, ...) \ 237 __diag_push(); \ 238 __diag_ignore(GCC, 8, "-Wattribute-alias", \ 239 "Type aliasing is used to sanitize syscall arguments");\ 240 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ 241 __attribute__((alias(__stringify(__se_sys##name)))); \ 242 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \ 243 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ 244 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ 245 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ 246 { \ 247 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\ 248 __MAP(x,__SC_TEST,__VA_ARGS__); \ 249 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \ 250 return ret; \ 251 } \ 252 __diag_pop(); \ 253 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) 254 #endif /* __SYSCALL_DEFINEx */ 255 256 /* 257 * Called before coming back to user-mode. Returning to user-mode with an 258 * address limit different than USER_DS can allow to overwrite kernel memory. 259 */ 260 static inline void addr_limit_user_check(void) 261 { 262 #ifdef TIF_FSCHECK 263 if (!test_thread_flag(TIF_FSCHECK)) 264 return; 265 #endif 266 267 if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS), 268 "Invalid address limit on user-mode return")) 269 force_sig(SIGKILL); 270 271 #ifdef TIF_FSCHECK 272 clear_thread_flag(TIF_FSCHECK); 273 #endif 274 } 275 276 /* 277 * These syscall function prototypes are kept in the same order as 278 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below, 279 * followed by deprecated or obsolete system calls. 280 * 281 * Please note that these prototypes here are only provided for information 282 * purposes, for static analysis, and for linking from the syscall table. 283 * These functions should not be called elsewhere from kernel code. 284 * 285 * As the syscall calling convention may be different from the default 286 * for architectures overriding the syscall calling convention, do not 287 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 288 */ 289 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 290 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx); 291 asmlinkage long sys_io_destroy(aio_context_t ctx); 292 asmlinkage long sys_io_submit(aio_context_t, long, 293 struct iocb __user * __user *); 294 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb, 295 struct io_event __user *result); 296 asmlinkage long sys_io_getevents(aio_context_t ctx_id, 297 long min_nr, 298 long nr, 299 struct io_event __user *events, 300 struct __kernel_timespec __user *timeout); 301 asmlinkage long sys_io_getevents_time32(__u32 ctx_id, 302 __s32 min_nr, 303 __s32 nr, 304 struct io_event __user *events, 305 struct old_timespec32 __user *timeout); 306 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id, 307 long min_nr, 308 long nr, 309 struct io_event __user *events, 310 struct __kernel_timespec __user *timeout, 311 const struct __aio_sigset *sig); 312 asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id, 313 long min_nr, 314 long nr, 315 struct io_event __user *events, 316 struct old_timespec32 __user *timeout, 317 const struct __aio_sigset *sig); 318 asmlinkage long sys_io_uring_setup(u32 entries, 319 struct io_uring_params __user *p); 320 asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit, 321 u32 min_complete, u32 flags, 322 const sigset_t __user *sig, size_t sigsz); 323 asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op, 324 void __user *arg, unsigned int nr_args); 325 326 /* fs/xattr.c */ 327 asmlinkage long sys_setxattr(const char __user *path, const char __user *name, 328 const void __user *value, size_t size, int flags); 329 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name, 330 const void __user *value, size_t size, int flags); 331 asmlinkage long sys_fsetxattr(int fd, const char __user *name, 332 const void __user *value, size_t size, int flags); 333 asmlinkage long sys_getxattr(const char __user *path, const char __user *name, 334 void __user *value, size_t size); 335 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name, 336 void __user *value, size_t size); 337 asmlinkage long sys_fgetxattr(int fd, const char __user *name, 338 void __user *value, size_t size); 339 asmlinkage long sys_listxattr(const char __user *path, char __user *list, 340 size_t size); 341 asmlinkage long sys_llistxattr(const char __user *path, char __user *list, 342 size_t size); 343 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size); 344 asmlinkage long sys_removexattr(const char __user *path, 345 const char __user *name); 346 asmlinkage long sys_lremovexattr(const char __user *path, 347 const char __user *name); 348 asmlinkage long sys_fremovexattr(int fd, const char __user *name); 349 350 /* fs/dcache.c */ 351 asmlinkage long sys_getcwd(char __user *buf, unsigned long size); 352 353 /* fs/cookies.c */ 354 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len); 355 356 /* fs/eventfd.c */ 357 asmlinkage long sys_eventfd2(unsigned int count, int flags); 358 359 /* fs/eventpoll.c */ 360 asmlinkage long sys_epoll_create1(int flags); 361 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, 362 struct epoll_event __user *event); 363 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events, 364 int maxevents, int timeout, 365 const sigset_t __user *sigmask, 366 size_t sigsetsize); 367 368 /* fs/fcntl.c */ 369 asmlinkage long sys_dup(unsigned int fildes); 370 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags); 371 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); 372 #if BITS_PER_LONG == 32 373 asmlinkage long sys_fcntl64(unsigned int fd, 374 unsigned int cmd, unsigned long arg); 375 #endif 376 377 /* fs/inotify_user.c */ 378 asmlinkage long sys_inotify_init1(int flags); 379 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, 380 u32 mask); 381 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd); 382 383 /* fs/ioctl.c */ 384 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, 385 unsigned long arg); 386 387 /* fs/ioprio.c */ 388 asmlinkage long sys_ioprio_set(int which, int who, int ioprio); 389 asmlinkage long sys_ioprio_get(int which, int who); 390 391 /* fs/locks.c */ 392 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd); 393 394 /* fs/namei.c */ 395 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode, 396 unsigned dev); 397 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode); 398 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag); 399 asmlinkage long sys_symlinkat(const char __user * oldname, 400 int newdfd, const char __user * newname); 401 asmlinkage long sys_linkat(int olddfd, const char __user *oldname, 402 int newdfd, const char __user *newname, int flags); 403 asmlinkage long sys_renameat(int olddfd, const char __user * oldname, 404 int newdfd, const char __user * newname); 405 406 /* fs/namespace.c */ 407 asmlinkage long sys_umount(char __user *name, int flags); 408 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name, 409 char __user *type, unsigned long flags, 410 void __user *data); 411 asmlinkage long sys_pivot_root(const char __user *new_root, 412 const char __user *put_old); 413 414 /* fs/nfsctl.c */ 415 416 /* fs/open.c */ 417 asmlinkage long sys_statfs(const char __user * path, 418 struct statfs __user *buf); 419 asmlinkage long sys_statfs64(const char __user *path, size_t sz, 420 struct statfs64 __user *buf); 421 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf); 422 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz, 423 struct statfs64 __user *buf); 424 asmlinkage long sys_truncate(const char __user *path, long length); 425 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length); 426 #if BITS_PER_LONG == 32 427 asmlinkage long sys_truncate64(const char __user *path, loff_t length); 428 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length); 429 #endif 430 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len); 431 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode); 432 asmlinkage long sys_chdir(const char __user *filename); 433 asmlinkage long sys_fchdir(unsigned int fd); 434 asmlinkage long sys_chroot(const char __user *filename); 435 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode); 436 asmlinkage long sys_fchmodat(int dfd, const char __user * filename, 437 umode_t mode); 438 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user, 439 gid_t group, int flag); 440 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group); 441 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags, 442 umode_t mode); 443 asmlinkage long sys_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_vhangup(void); 447 448 /* fs/pipe.c */ 449 asmlinkage long sys_pipe2(int __user *fildes, int flags); 450 451 /* fs/quota.c */ 452 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special, 453 qid_t id, void __user *addr); 454 455 /* fs/readdir.c */ 456 asmlinkage long sys_getdents64(unsigned int fd, 457 struct linux_dirent64 __user *dirent, 458 unsigned int count); 459 460 /* fs/read_write.c */ 461 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high, 462 unsigned long offset_low, loff_t __user *result, 463 unsigned int whence); 464 asmlinkage long sys_lseek(unsigned int fd, off_t offset, 465 unsigned int whence); 466 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count); 467 asmlinkage long sys_write(unsigned int fd, const char __user *buf, 468 size_t count); 469 asmlinkage long sys_readv(unsigned long fd, 470 const struct iovec __user *vec, 471 unsigned long vlen); 472 asmlinkage long sys_writev(unsigned long fd, 473 const struct iovec __user *vec, 474 unsigned long vlen); 475 asmlinkage long sys_pread64(unsigned int fd, char __user *buf, 476 size_t count, loff_t pos); 477 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf, 478 size_t count, loff_t pos); 479 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec, 480 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 481 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec, 482 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 483 484 /* fs/sendfile.c */ 485 asmlinkage long sys_sendfile64(int out_fd, int in_fd, 486 loff_t __user *offset, size_t count); 487 488 /* fs/select.c */ 489 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *, 490 fd_set __user *, struct __kernel_timespec __user *, 491 void __user *); 492 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *, 493 fd_set __user *, struct old_timespec32 __user *, 494 void __user *); 495 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int, 496 struct __kernel_timespec __user *, const sigset_t __user *, 497 size_t); 498 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int, 499 struct old_timespec32 __user *, const sigset_t __user *, 500 size_t); 501 502 /* fs/signalfd.c */ 503 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags); 504 505 /* fs/splice.c */ 506 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov, 507 unsigned long nr_segs, unsigned int flags); 508 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in, 509 int fd_out, loff_t __user *off_out, 510 size_t len, unsigned int flags); 511 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags); 512 513 /* fs/stat.c */ 514 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf, 515 int bufsiz); 516 asmlinkage long sys_newfstatat(int dfd, const char __user *filename, 517 struct stat __user *statbuf, int flag); 518 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf); 519 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 520 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf); 521 asmlinkage long sys_fstatat64(int dfd, const char __user *filename, 522 struct stat64 __user *statbuf, int flag); 523 #endif 524 525 /* fs/sync.c */ 526 asmlinkage long sys_sync(void); 527 asmlinkage long sys_fsync(unsigned int fd); 528 asmlinkage long sys_fdatasync(unsigned int fd); 529 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags, 530 loff_t offset, loff_t nbytes); 531 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 532 unsigned int flags); 533 534 /* fs/timerfd.c */ 535 asmlinkage long sys_timerfd_create(int clockid, int flags); 536 asmlinkage long sys_timerfd_settime(int ufd, int flags, 537 const struct __kernel_itimerspec __user *utmr, 538 struct __kernel_itimerspec __user *otmr); 539 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr); 540 asmlinkage long sys_timerfd_gettime32(int ufd, 541 struct old_itimerspec32 __user *otmr); 542 asmlinkage long sys_timerfd_settime32(int ufd, int flags, 543 const struct old_itimerspec32 __user *utmr, 544 struct old_itimerspec32 __user *otmr); 545 546 /* fs/utimes.c */ 547 asmlinkage long sys_utimensat(int dfd, const char __user *filename, 548 struct __kernel_timespec __user *utimes, 549 int flags); 550 asmlinkage long sys_utimensat_time32(unsigned int dfd, 551 const char __user *filename, 552 struct old_timespec32 __user *t, int flags); 553 554 /* kernel/acct.c */ 555 asmlinkage long sys_acct(const char __user *name); 556 557 /* kernel/capability.c */ 558 asmlinkage long sys_capget(cap_user_header_t header, 559 cap_user_data_t dataptr); 560 asmlinkage long sys_capset(cap_user_header_t header, 561 const cap_user_data_t data); 562 563 /* kernel/exec_domain.c */ 564 asmlinkage long sys_personality(unsigned int personality); 565 566 /* kernel/exit.c */ 567 asmlinkage long sys_exit(int error_code); 568 asmlinkage long sys_exit_group(int error_code); 569 asmlinkage long sys_waitid(int which, pid_t pid, 570 struct siginfo __user *infop, 571 int options, struct rusage __user *ru); 572 573 /* kernel/fork.c */ 574 asmlinkage long sys_set_tid_address(int __user *tidptr); 575 asmlinkage long sys_unshare(unsigned long unshare_flags); 576 577 /* kernel/futex.c */ 578 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val, 579 struct __kernel_timespec __user *utime, u32 __user *uaddr2, 580 u32 val3); 581 asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val, 582 struct old_timespec32 __user *utime, u32 __user *uaddr2, 583 u32 val3); 584 asmlinkage long sys_get_robust_list(int pid, 585 struct robust_list_head __user * __user *head_ptr, 586 size_t __user *len_ptr); 587 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, 588 size_t len); 589 590 /* kernel/hrtimer.c */ 591 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp, 592 struct __kernel_timespec __user *rmtp); 593 asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp, 594 struct old_timespec32 __user *rmtp); 595 596 /* kernel/itimer.c */ 597 asmlinkage long sys_getitimer(int which, struct itimerval __user *value); 598 asmlinkage long sys_setitimer(int which, 599 struct itimerval __user *value, 600 struct itimerval __user *ovalue); 601 602 /* kernel/kexec.c */ 603 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments, 604 struct kexec_segment __user *segments, 605 unsigned long flags); 606 607 /* kernel/module.c */ 608 asmlinkage long sys_init_module(void __user *umod, unsigned long len, 609 const char __user *uargs); 610 asmlinkage long sys_delete_module(const char __user *name_user, 611 unsigned int flags); 612 613 /* kernel/posix-timers.c */ 614 asmlinkage long sys_timer_create(clockid_t which_clock, 615 struct sigevent __user *timer_event_spec, 616 timer_t __user * created_timer_id); 617 asmlinkage long sys_timer_gettime(timer_t timer_id, 618 struct __kernel_itimerspec __user *setting); 619 asmlinkage long sys_timer_getoverrun(timer_t timer_id); 620 asmlinkage long sys_timer_settime(timer_t timer_id, int flags, 621 const struct __kernel_itimerspec __user *new_setting, 622 struct __kernel_itimerspec __user *old_setting); 623 asmlinkage long sys_timer_delete(timer_t timer_id); 624 asmlinkage long sys_clock_settime(clockid_t which_clock, 625 const struct __kernel_timespec __user *tp); 626 asmlinkage long sys_clock_gettime(clockid_t which_clock, 627 struct __kernel_timespec __user *tp); 628 asmlinkage long sys_clock_getres(clockid_t which_clock, 629 struct __kernel_timespec __user *tp); 630 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags, 631 const struct __kernel_timespec __user *rqtp, 632 struct __kernel_timespec __user *rmtp); 633 asmlinkage long sys_timer_gettime32(timer_t timer_id, 634 struct old_itimerspec32 __user *setting); 635 asmlinkage long sys_timer_settime32(timer_t timer_id, int flags, 636 struct old_itimerspec32 __user *new, 637 struct old_itimerspec32 __user *old); 638 asmlinkage long sys_clock_settime32(clockid_t which_clock, 639 struct old_timespec32 __user *tp); 640 asmlinkage long sys_clock_gettime32(clockid_t which_clock, 641 struct old_timespec32 __user *tp); 642 asmlinkage long sys_clock_getres_time32(clockid_t which_clock, 643 struct old_timespec32 __user *tp); 644 asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags, 645 struct old_timespec32 __user *rqtp, 646 struct old_timespec32 __user *rmtp); 647 648 /* kernel/printk.c */ 649 asmlinkage long sys_syslog(int type, char __user *buf, int len); 650 651 /* kernel/ptrace.c */ 652 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, 653 unsigned long data); 654 /* kernel/sched/core.c */ 655 656 asmlinkage long sys_sched_setparam(pid_t pid, 657 struct sched_param __user *param); 658 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy, 659 struct sched_param __user *param); 660 asmlinkage long sys_sched_getscheduler(pid_t pid); 661 asmlinkage long sys_sched_getparam(pid_t pid, 662 struct sched_param __user *param); 663 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len, 664 unsigned long __user *user_mask_ptr); 665 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len, 666 unsigned long __user *user_mask_ptr); 667 asmlinkage long sys_sched_yield(void); 668 asmlinkage long sys_sched_get_priority_max(int policy); 669 asmlinkage long sys_sched_get_priority_min(int policy); 670 asmlinkage long sys_sched_rr_get_interval(pid_t pid, 671 struct __kernel_timespec __user *interval); 672 asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid, 673 struct old_timespec32 __user *interval); 674 675 /* kernel/signal.c */ 676 asmlinkage long sys_restart_syscall(void); 677 asmlinkage long sys_kill(pid_t pid, int sig); 678 asmlinkage long sys_tkill(pid_t pid, int sig); 679 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig); 680 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss, 681 struct sigaltstack __user *uoss); 682 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize); 683 #ifndef CONFIG_ODD_RT_SIGACTION 684 asmlinkage long sys_rt_sigaction(int, 685 const struct sigaction __user *, 686 struct sigaction __user *, 687 size_t); 688 #endif 689 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set, 690 sigset_t __user *oset, size_t sigsetsize); 691 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize); 692 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese, 693 siginfo_t __user *uinfo, 694 const struct __kernel_timespec __user *uts, 695 size_t sigsetsize); 696 asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese, 697 siginfo_t __user *uinfo, 698 const struct old_timespec32 __user *uts, 699 size_t sigsetsize); 700 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo); 701 702 /* kernel/sys.c */ 703 asmlinkage long sys_setpriority(int which, int who, int niceval); 704 asmlinkage long sys_getpriority(int which, int who); 705 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, 706 void __user *arg); 707 asmlinkage long sys_setregid(gid_t rgid, gid_t egid); 708 asmlinkage long sys_setgid(gid_t gid); 709 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid); 710 asmlinkage long sys_setuid(uid_t uid); 711 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid); 712 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid); 713 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid); 714 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid); 715 asmlinkage long sys_setfsuid(uid_t uid); 716 asmlinkage long sys_setfsgid(gid_t gid); 717 asmlinkage long sys_times(struct tms __user *tbuf); 718 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid); 719 asmlinkage long sys_getpgid(pid_t pid); 720 asmlinkage long sys_getsid(pid_t pid); 721 asmlinkage long sys_setsid(void); 722 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist); 723 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist); 724 asmlinkage long sys_newuname(struct new_utsname __user *name); 725 asmlinkage long sys_sethostname(char __user *name, int len); 726 asmlinkage long sys_setdomainname(char __user *name, int len); 727 asmlinkage long sys_getrlimit(unsigned int resource, 728 struct rlimit __user *rlim); 729 asmlinkage long sys_setrlimit(unsigned int resource, 730 struct rlimit __user *rlim); 731 asmlinkage long sys_getrusage(int who, struct rusage __user *ru); 732 asmlinkage long sys_umask(int mask); 733 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, 734 unsigned long arg4, unsigned long arg5); 735 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache); 736 737 /* kernel/time.c */ 738 asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv, 739 struct timezone __user *tz); 740 asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv, 741 struct timezone __user *tz); 742 asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p); 743 asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p); 744 745 /* kernel/timer.c */ 746 asmlinkage long sys_getpid(void); 747 asmlinkage long sys_getppid(void); 748 asmlinkage long sys_getuid(void); 749 asmlinkage long sys_geteuid(void); 750 asmlinkage long sys_getgid(void); 751 asmlinkage long sys_getegid(void); 752 asmlinkage long sys_gettid(void); 753 asmlinkage long sys_sysinfo(struct sysinfo __user *info); 754 755 /* ipc/mqueue.c */ 756 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr); 757 asmlinkage long sys_mq_unlink(const char __user *name); 758 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); 759 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); 760 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification); 761 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat); 762 asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes, 763 char __user *u_msg_ptr, 764 unsigned int msg_len, unsigned int __user *u_msg_prio, 765 const struct old_timespec32 __user *u_abs_timeout); 766 asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes, 767 const char __user *u_msg_ptr, 768 unsigned int msg_len, unsigned int msg_prio, 769 const struct old_timespec32 __user *u_abs_timeout); 770 771 /* ipc/msg.c */ 772 asmlinkage long sys_msgget(key_t key, int msgflg); 773 asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 774 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 775 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp, 776 size_t msgsz, long msgtyp, int msgflg); 777 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp, 778 size_t msgsz, int msgflg); 779 780 /* ipc/sem.c */ 781 asmlinkage long sys_semget(key_t key, int nsems, int semflg); 782 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg); 783 asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg); 784 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops, 785 unsigned nsops, 786 const struct __kernel_timespec __user *timeout); 787 asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops, 788 unsigned nsops, 789 const struct old_timespec32 __user *timeout); 790 asmlinkage long sys_semop(int semid, struct sembuf __user *sops, 791 unsigned nsops); 792 793 /* ipc/shm.c */ 794 asmlinkage long sys_shmget(key_t key, size_t size, int flag); 795 asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 796 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 797 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg); 798 asmlinkage long sys_shmdt(char __user *shmaddr); 799 800 /* net/socket.c */ 801 asmlinkage long sys_socket(int, int, int); 802 asmlinkage long sys_socketpair(int, int, int, int __user *); 803 asmlinkage long sys_bind(int, struct sockaddr __user *, int); 804 asmlinkage long sys_listen(int, int); 805 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *); 806 asmlinkage long sys_connect(int, struct sockaddr __user *, int); 807 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *); 808 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *); 809 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned, 810 struct sockaddr __user *, int); 811 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned, 812 struct sockaddr __user *, int __user *); 813 asmlinkage long sys_setsockopt(int fd, int level, int optname, 814 char __user *optval, int optlen); 815 asmlinkage long sys_getsockopt(int fd, int level, int optname, 816 char __user *optval, int __user *optlen); 817 asmlinkage long sys_shutdown(int, int); 818 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 819 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 820 821 /* mm/filemap.c */ 822 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count); 823 824 /* mm/nommu.c, also with MMU */ 825 asmlinkage long sys_brk(unsigned long brk); 826 asmlinkage long sys_munmap(unsigned long addr, size_t len); 827 asmlinkage long sys_mremap(unsigned long addr, 828 unsigned long old_len, unsigned long new_len, 829 unsigned long flags, unsigned long new_addr); 830 831 /* security/keys/keyctl.c */ 832 asmlinkage long sys_add_key(const char __user *_type, 833 const char __user *_description, 834 const void __user *_payload, 835 size_t plen, 836 key_serial_t destringid); 837 asmlinkage long sys_request_key(const char __user *_type, 838 const char __user *_description, 839 const char __user *_callout_info, 840 key_serial_t destringid); 841 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3, 842 unsigned long arg4, unsigned long arg5); 843 844 /* arch/example/kernel/sys_example.c */ 845 #ifdef CONFIG_CLONE_BACKWARDS 846 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long, 847 int __user *); 848 #else 849 #ifdef CONFIG_CLONE_BACKWARDS3 850 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *, 851 int __user *, unsigned long); 852 #else 853 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, 854 int __user *, unsigned long); 855 #endif 856 #endif 857 858 asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size); 859 860 asmlinkage long sys_execve(const char __user *filename, 861 const char __user *const __user *argv, 862 const char __user *const __user *envp); 863 864 /* mm/fadvise.c */ 865 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 866 867 /* mm/, CONFIG_MMU only */ 868 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags); 869 asmlinkage long sys_swapoff(const char __user *specialfile); 870 asmlinkage long sys_mprotect(unsigned long start, size_t len, 871 unsigned long prot); 872 asmlinkage long sys_msync(unsigned long start, size_t len, int flags); 873 asmlinkage long sys_mlock(unsigned long start, size_t len); 874 asmlinkage long sys_munlock(unsigned long start, size_t len); 875 asmlinkage long sys_mlockall(int flags); 876 asmlinkage long sys_munlockall(void); 877 asmlinkage long sys_mincore(unsigned long start, size_t len, 878 unsigned char __user * vec); 879 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior); 880 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, 881 unsigned long prot, unsigned long pgoff, 882 unsigned long flags); 883 asmlinkage long sys_mbind(unsigned long start, unsigned long len, 884 unsigned long mode, 885 const unsigned long __user *nmask, 886 unsigned long maxnode, 887 unsigned flags); 888 asmlinkage long sys_get_mempolicy(int __user *policy, 889 unsigned long __user *nmask, 890 unsigned long maxnode, 891 unsigned long addr, unsigned long flags); 892 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask, 893 unsigned long maxnode); 894 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode, 895 const unsigned long __user *from, 896 const unsigned long __user *to); 897 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages, 898 const void __user * __user *pages, 899 const int __user *nodes, 900 int __user *status, 901 int flags); 902 903 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, 904 siginfo_t __user *uinfo); 905 asmlinkage long sys_perf_event_open( 906 struct perf_event_attr __user *attr_uptr, 907 pid_t pid, int cpu, int group_fd, unsigned long flags); 908 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int); 909 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg, 910 unsigned int vlen, unsigned flags, 911 struct __kernel_timespec __user *timeout); 912 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg, 913 unsigned int vlen, unsigned flags, 914 struct old_timespec32 __user *timeout); 915 916 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr, 917 int options, struct rusage __user *ru); 918 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource, 919 const struct rlimit64 __user *new_rlim, 920 struct rlimit64 __user *old_rlim); 921 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags); 922 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags, 923 u64 mask, int fd, 924 const char __user *pathname); 925 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name, 926 struct file_handle __user *handle, 927 int __user *mnt_id, int flag); 928 asmlinkage long sys_open_by_handle_at(int mountdirfd, 929 struct file_handle __user *handle, 930 int flags); 931 asmlinkage long sys_clock_adjtime(clockid_t which_clock, 932 struct __kernel_timex __user *tx); 933 asmlinkage long sys_clock_adjtime32(clockid_t which_clock, 934 struct old_timex32 __user *tx); 935 asmlinkage long sys_syncfs(int fd); 936 asmlinkage long sys_setns(int fd, int nstype); 937 asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags); 938 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg, 939 unsigned int vlen, unsigned flags); 940 asmlinkage long sys_process_vm_readv(pid_t pid, 941 const struct iovec __user *lvec, 942 unsigned long liovcnt, 943 const struct iovec __user *rvec, 944 unsigned long riovcnt, 945 unsigned long flags); 946 asmlinkage long sys_process_vm_writev(pid_t pid, 947 const struct iovec __user *lvec, 948 unsigned long liovcnt, 949 const struct iovec __user *rvec, 950 unsigned long riovcnt, 951 unsigned long flags); 952 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type, 953 unsigned long idx1, unsigned long idx2); 954 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags); 955 asmlinkage long sys_sched_setattr(pid_t pid, 956 struct sched_attr __user *attr, 957 unsigned int flags); 958 asmlinkage long sys_sched_getattr(pid_t pid, 959 struct sched_attr __user *attr, 960 unsigned int size, 961 unsigned int flags); 962 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname, 963 int newdfd, const char __user *newname, 964 unsigned int flags); 965 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, 966 void __user *uargs); 967 asmlinkage long sys_getrandom(char __user *buf, size_t count, 968 unsigned int flags); 969 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags); 970 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size); 971 asmlinkage long sys_execveat(int dfd, const char __user *filename, 972 const char __user *const __user *argv, 973 const char __user *const __user *envp, int flags); 974 asmlinkage long sys_userfaultfd(int flags); 975 asmlinkage long sys_membarrier(int cmd, int flags); 976 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags); 977 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in, 978 int fd_out, loff_t __user *off_out, 979 size_t len, unsigned int flags); 980 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec, 981 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 982 rwf_t flags); 983 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec, 984 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 985 rwf_t flags); 986 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len, 987 unsigned long prot, int pkey); 988 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val); 989 asmlinkage long sys_pkey_free(int pkey); 990 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags, 991 unsigned mask, struct statx __user *buffer); 992 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len, 993 int flags, uint32_t sig); 994 asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags); 995 asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path, 996 int to_dfd, const char __user *to_path, 997 unsigned int ms_flags); 998 asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags); 999 asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key, 1000 const void __user *value, int aux); 1001 asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags); 1002 asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags); 1003 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig, 1004 siginfo_t __user *info, 1005 unsigned int flags); 1006 1007 /* 1008 * Architecture-specific system calls 1009 */ 1010 1011 /* arch/x86/kernel/ioport.c */ 1012 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); 1013 1014 /* pciconfig: alpha, arm, arm64, ia64, sparc */ 1015 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn, 1016 unsigned long off, unsigned long len, 1017 void __user *buf); 1018 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn, 1019 unsigned long off, unsigned long len, 1020 void __user *buf); 1021 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn); 1022 1023 /* powerpc */ 1024 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc, 1025 __u32 __user *ustatus); 1026 asmlinkage long sys_spu_create(const char __user *name, 1027 unsigned int flags, umode_t mode, int fd); 1028 1029 1030 /* 1031 * Deprecated system calls which are still defined in 1032 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch 1033 */ 1034 1035 /* __ARCH_WANT_SYSCALL_NO_AT */ 1036 asmlinkage long sys_open(const char __user *filename, 1037 int flags, umode_t mode); 1038 asmlinkage long sys_link(const char __user *oldname, 1039 const char __user *newname); 1040 asmlinkage long sys_unlink(const char __user *pathname); 1041 asmlinkage long sys_mknod(const char __user *filename, umode_t mode, 1042 unsigned dev); 1043 asmlinkage long sys_chmod(const char __user *filename, umode_t mode); 1044 asmlinkage long sys_chown(const char __user *filename, 1045 uid_t user, gid_t group); 1046 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode); 1047 asmlinkage long sys_rmdir(const char __user *pathname); 1048 asmlinkage long sys_lchown(const char __user *filename, 1049 uid_t user, gid_t group); 1050 asmlinkage long sys_access(const char __user *filename, int mode); 1051 asmlinkage long sys_rename(const char __user *oldname, 1052 const char __user *newname); 1053 asmlinkage long sys_symlink(const char __user *old, const char __user *new); 1054 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 1055 asmlinkage long sys_stat64(const char __user *filename, 1056 struct stat64 __user *statbuf); 1057 asmlinkage long sys_lstat64(const char __user *filename, 1058 struct stat64 __user *statbuf); 1059 #endif 1060 1061 /* __ARCH_WANT_SYSCALL_NO_FLAGS */ 1062 asmlinkage long sys_pipe(int __user *fildes); 1063 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd); 1064 asmlinkage long sys_epoll_create(int size); 1065 asmlinkage long sys_inotify_init(void); 1066 asmlinkage long sys_eventfd(unsigned int count); 1067 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask); 1068 1069 /* __ARCH_WANT_SYSCALL_OFF_T */ 1070 asmlinkage long sys_sendfile(int out_fd, int in_fd, 1071 off_t __user *offset, size_t count); 1072 asmlinkage long sys_newstat(const char __user *filename, 1073 struct stat __user *statbuf); 1074 asmlinkage long sys_newlstat(const char __user *filename, 1075 struct stat __user *statbuf); 1076 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice); 1077 1078 /* __ARCH_WANT_SYSCALL_DEPRECATED */ 1079 asmlinkage long sys_alarm(unsigned int seconds); 1080 asmlinkage long sys_getpgrp(void); 1081 asmlinkage long sys_pause(void); 1082 asmlinkage long sys_time(__kernel_old_time_t __user *tloc); 1083 asmlinkage long sys_time32(old_time32_t __user *tloc); 1084 #ifdef __ARCH_WANT_SYS_UTIME 1085 asmlinkage long sys_utime(char __user *filename, 1086 struct utimbuf __user *times); 1087 asmlinkage long sys_utimes(char __user *filename, 1088 struct __kernel_old_timeval __user *utimes); 1089 asmlinkage long sys_futimesat(int dfd, const char __user *filename, 1090 struct __kernel_old_timeval __user *utimes); 1091 #endif 1092 asmlinkage long sys_futimesat_time32(unsigned int dfd, 1093 const char __user *filename, 1094 struct old_timeval32 __user *t); 1095 asmlinkage long sys_utime32(const char __user *filename, 1096 struct old_utimbuf32 __user *t); 1097 asmlinkage long sys_utimes_time32(const char __user *filename, 1098 struct old_timeval32 __user *t); 1099 asmlinkage long sys_creat(const char __user *pathname, umode_t mode); 1100 asmlinkage long sys_getdents(unsigned int fd, 1101 struct linux_dirent __user *dirent, 1102 unsigned int count); 1103 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp, 1104 fd_set __user *exp, struct __kernel_old_timeval __user *tvp); 1105 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds, 1106 int timeout); 1107 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, 1108 int maxevents, int timeout); 1109 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf); 1110 asmlinkage long sys_vfork(void); 1111 asmlinkage long sys_recv(int, void __user *, size_t, unsigned); 1112 asmlinkage long sys_send(int, void __user *, size_t, unsigned); 1113 asmlinkage long sys_bdflush(int func, long data); 1114 asmlinkage long sys_oldumount(char __user *name); 1115 asmlinkage long sys_uselib(const char __user *library); 1116 asmlinkage long sys_sysctl(struct __sysctl_args __user *args); 1117 asmlinkage long sys_sysfs(int option, 1118 unsigned long arg1, unsigned long arg2); 1119 asmlinkage long sys_fork(void); 1120 1121 /* obsolete: kernel/time/time.c */ 1122 asmlinkage long sys_stime(__kernel_old_time_t __user *tptr); 1123 asmlinkage long sys_stime32(old_time32_t __user *tptr); 1124 1125 /* obsolete: kernel/signal.c */ 1126 asmlinkage long sys_sigpending(old_sigset_t __user *uset); 1127 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set, 1128 old_sigset_t __user *oset); 1129 #ifdef CONFIG_OLD_SIGSUSPEND 1130 asmlinkage long sys_sigsuspend(old_sigset_t mask); 1131 #endif 1132 1133 #ifdef CONFIG_OLD_SIGSUSPEND3 1134 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask); 1135 #endif 1136 1137 #ifdef CONFIG_OLD_SIGACTION 1138 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *, 1139 struct old_sigaction __user *); 1140 #endif 1141 asmlinkage long sys_sgetmask(void); 1142 asmlinkage long sys_ssetmask(int newmask); 1143 asmlinkage long sys_signal(int sig, __sighandler_t handler); 1144 1145 /* obsolete: kernel/sched/core.c */ 1146 asmlinkage long sys_nice(int increment); 1147 1148 /* obsolete: kernel/kexec_file.c */ 1149 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd, 1150 unsigned long cmdline_len, 1151 const char __user *cmdline_ptr, 1152 unsigned long flags); 1153 1154 /* obsolete: kernel/exit.c */ 1155 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options); 1156 1157 /* obsolete: kernel/uid16.c */ 1158 #ifdef CONFIG_HAVE_UID16 1159 asmlinkage long sys_chown16(const char __user *filename, 1160 old_uid_t user, old_gid_t group); 1161 asmlinkage long sys_lchown16(const char __user *filename, 1162 old_uid_t user, old_gid_t group); 1163 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group); 1164 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid); 1165 asmlinkage long sys_setgid16(old_gid_t gid); 1166 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid); 1167 asmlinkage long sys_setuid16(old_uid_t uid); 1168 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid); 1169 asmlinkage long sys_getresuid16(old_uid_t __user *ruid, 1170 old_uid_t __user *euid, old_uid_t __user *suid); 1171 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid); 1172 asmlinkage long sys_getresgid16(old_gid_t __user *rgid, 1173 old_gid_t __user *egid, old_gid_t __user *sgid); 1174 asmlinkage long sys_setfsuid16(old_uid_t uid); 1175 asmlinkage long sys_setfsgid16(old_gid_t gid); 1176 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist); 1177 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist); 1178 asmlinkage long sys_getuid16(void); 1179 asmlinkage long sys_geteuid16(void); 1180 asmlinkage long sys_getgid16(void); 1181 asmlinkage long sys_getegid16(void); 1182 #endif 1183 1184 /* obsolete: net/socket.c */ 1185 asmlinkage long sys_socketcall(int call, unsigned long __user *args); 1186 1187 /* obsolete: fs/stat.c */ 1188 asmlinkage long sys_stat(const char __user *filename, 1189 struct __old_kernel_stat __user *statbuf); 1190 asmlinkage long sys_lstat(const char __user *filename, 1191 struct __old_kernel_stat __user *statbuf); 1192 asmlinkage long sys_fstat(unsigned int fd, 1193 struct __old_kernel_stat __user *statbuf); 1194 asmlinkage long sys_readlink(const char __user *path, 1195 char __user *buf, int bufsiz); 1196 1197 /* obsolete: fs/select.c */ 1198 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg); 1199 1200 /* obsolete: fs/readdir.c */ 1201 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int); 1202 1203 /* obsolete: kernel/sys.c */ 1204 asmlinkage long sys_gethostname(char __user *name, int len); 1205 asmlinkage long sys_uname(struct old_utsname __user *); 1206 asmlinkage long sys_olduname(struct oldold_utsname __user *); 1207 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT 1208 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim); 1209 #endif 1210 1211 /* obsolete: ipc */ 1212 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second, 1213 unsigned long third, void __user *ptr, long fifth); 1214 1215 /* obsolete: mm/ */ 1216 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len, 1217 unsigned long prot, unsigned long flags, 1218 unsigned long fd, unsigned long pgoff); 1219 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg); 1220 1221 1222 /* 1223 * Not a real system call, but a placeholder for syscalls which are 1224 * not implemented -- see kernel/sys_ni.c 1225 */ 1226 asmlinkage long sys_ni_syscall(void); 1227 1228 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 1229 1230 1231 /* 1232 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly. 1233 * Instead, use one of the functions which work equivalently, such as 1234 * the ksys_xyzyyz() functions prototyped below. 1235 */ 1236 1237 int ksys_mount(const char __user *dev_name, const char __user *dir_name, 1238 const char __user *type, unsigned long flags, void __user *data); 1239 int ksys_umount(char __user *name, int flags); 1240 int ksys_dup(unsigned int fildes); 1241 int ksys_chroot(const char __user *filename); 1242 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count); 1243 int ksys_chdir(const char __user *filename); 1244 int ksys_fchmod(unsigned int fd, umode_t mode); 1245 int ksys_fchown(unsigned int fd, uid_t user, gid_t group); 1246 int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent, 1247 unsigned int count); 1248 int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg); 1249 off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence); 1250 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count); 1251 void ksys_sync(void); 1252 int ksys_unshare(unsigned long unshare_flags); 1253 int ksys_setsid(void); 1254 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 1255 unsigned int flags); 1256 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count, 1257 loff_t pos); 1258 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf, 1259 size_t count, loff_t pos); 1260 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len); 1261 #ifdef CONFIG_ADVISE_SYSCALLS 1262 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 1263 #else 1264 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, 1265 int advice) 1266 { 1267 return -EINVAL; 1268 } 1269 #endif 1270 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len, 1271 unsigned long prot, unsigned long flags, 1272 unsigned long fd, unsigned long pgoff); 1273 ssize_t ksys_readahead(int fd, loff_t offset, size_t count); 1274 int ksys_ipc(unsigned int call, int first, unsigned long second, 1275 unsigned long third, void __user * ptr, long fifth); 1276 int compat_ksys_ipc(u32 call, int first, int second, 1277 u32 third, u32 ptr, u32 fifth); 1278 1279 /* 1280 * The following kernel syscall equivalents are just wrappers to fs-internal 1281 * functions. Therefore, provide stubs to be inlined at the callsites. 1282 */ 1283 extern long do_unlinkat(int dfd, struct filename *name); 1284 1285 static inline long ksys_unlink(const char __user *pathname) 1286 { 1287 return do_unlinkat(AT_FDCWD, getname(pathname)); 1288 } 1289 1290 extern long do_rmdir(int dfd, const char __user *pathname); 1291 1292 static inline long ksys_rmdir(const char __user *pathname) 1293 { 1294 return do_rmdir(AT_FDCWD, pathname); 1295 } 1296 1297 extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode); 1298 1299 static inline long ksys_mkdir(const char __user *pathname, umode_t mode) 1300 { 1301 return do_mkdirat(AT_FDCWD, pathname, mode); 1302 } 1303 1304 extern long do_symlinkat(const char __user *oldname, int newdfd, 1305 const char __user *newname); 1306 1307 static inline long ksys_symlink(const char __user *oldname, 1308 const char __user *newname) 1309 { 1310 return do_symlinkat(oldname, AT_FDCWD, newname); 1311 } 1312 1313 extern long do_mknodat(int dfd, const char __user *filename, umode_t mode, 1314 unsigned int dev); 1315 1316 static inline long ksys_mknod(const char __user *filename, umode_t mode, 1317 unsigned int dev) 1318 { 1319 return do_mknodat(AT_FDCWD, filename, mode, dev); 1320 } 1321 1322 extern int do_linkat(int olddfd, const char __user *oldname, int newdfd, 1323 const char __user *newname, int flags); 1324 1325 static inline long ksys_link(const char __user *oldname, 1326 const char __user *newname) 1327 { 1328 return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0); 1329 } 1330 1331 extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode); 1332 1333 static inline int ksys_chmod(const char __user *filename, umode_t mode) 1334 { 1335 return do_fchmodat(AT_FDCWD, filename, mode); 1336 } 1337 1338 extern long do_faccessat(int dfd, const char __user *filename, int mode); 1339 1340 static inline long ksys_access(const char __user *filename, int mode) 1341 { 1342 return do_faccessat(AT_FDCWD, filename, mode); 1343 } 1344 1345 extern int do_fchownat(int dfd, const char __user *filename, uid_t user, 1346 gid_t group, int flag); 1347 1348 static inline long ksys_chown(const char __user *filename, uid_t user, 1349 gid_t group) 1350 { 1351 return do_fchownat(AT_FDCWD, filename, user, group, 0); 1352 } 1353 1354 static inline long ksys_lchown(const char __user *filename, uid_t user, 1355 gid_t group) 1356 { 1357 return do_fchownat(AT_FDCWD, filename, user, group, 1358 AT_SYMLINK_NOFOLLOW); 1359 } 1360 1361 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small); 1362 1363 static inline long ksys_ftruncate(unsigned int fd, unsigned long length) 1364 { 1365 return do_sys_ftruncate(fd, length, 1); 1366 } 1367 1368 extern int __close_fd(struct files_struct *files, unsigned int fd); 1369 1370 /* 1371 * In contrast to sys_close(), this stub does not check whether the syscall 1372 * should or should not be restarted, but returns the raw error codes from 1373 * __close_fd(). 1374 */ 1375 static inline int ksys_close(unsigned int fd) 1376 { 1377 return __close_fd(current->files, fd); 1378 } 1379 1380 extern long do_sys_open(int dfd, const char __user *filename, int flags, 1381 umode_t mode); 1382 1383 static inline long ksys_open(const char __user *filename, int flags, 1384 umode_t mode) 1385 { 1386 if (force_o_largefile()) 1387 flags |= O_LARGEFILE; 1388 return do_sys_open(AT_FDCWD, filename, flags, mode); 1389 } 1390 1391 extern long do_sys_truncate(const char __user *pathname, loff_t length); 1392 1393 static inline long ksys_truncate(const char __user *pathname, loff_t length) 1394 { 1395 return do_sys_truncate(pathname, length); 1396 } 1397 1398 static inline unsigned int ksys_personality(unsigned int personality) 1399 { 1400 unsigned int old = current->personality; 1401 1402 if (personality != 0xffffffff) 1403 set_personality(personality); 1404 1405 return old; 1406 } 1407 1408 /* for __ARCH_WANT_SYS_IPC */ 1409 long ksys_semtimedop(int semid, struct sembuf __user *tsops, 1410 unsigned int nsops, 1411 const struct __kernel_timespec __user *timeout); 1412 long ksys_semget(key_t key, int nsems, int semflg); 1413 long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg); 1414 long ksys_msgget(key_t key, int msgflg); 1415 long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 1416 long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz, 1417 long msgtyp, int msgflg); 1418 long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz, 1419 int msgflg); 1420 long ksys_shmget(key_t key, size_t size, int shmflg); 1421 long ksys_shmdt(char __user *shmaddr); 1422 long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 1423 long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems, 1424 unsigned int nsops, 1425 const struct old_timespec32 __user *timeout); 1426 1427 #endif 1428