1 /* 2 * syscalls.h - Linux syscall interfaces (non-arch-specific) 3 * 4 * Copyright (c) 2004 Randy Dunlap 5 * Copyright (c) 2004 Open Source Development Labs 6 * 7 * This file is released under the GPLv2. 8 * See the file COPYING for more details. 9 */ 10 11 #ifndef _LINUX_SYSCALLS_H 12 #define _LINUX_SYSCALLS_H 13 14 struct __aio_sigset; 15 struct epoll_event; 16 struct iattr; 17 struct inode; 18 struct iocb; 19 struct io_event; 20 struct iovec; 21 struct itimerspec; 22 struct itimerval; 23 struct kexec_segment; 24 struct linux_dirent; 25 struct linux_dirent64; 26 struct list_head; 27 struct mmap_arg_struct; 28 struct msgbuf; 29 struct user_msghdr; 30 struct mmsghdr; 31 struct msqid_ds; 32 struct new_utsname; 33 struct nfsctl_arg; 34 struct __old_kernel_stat; 35 struct oldold_utsname; 36 struct old_utsname; 37 struct pollfd; 38 struct rlimit; 39 struct rlimit64; 40 struct rusage; 41 struct sched_param; 42 struct sched_attr; 43 struct sel_arg_struct; 44 struct semaphore; 45 struct sembuf; 46 struct shmid_ds; 47 struct sockaddr; 48 struct stat; 49 struct stat64; 50 struct statfs; 51 struct statfs64; 52 struct statx; 53 struct __sysctl_args; 54 struct sysinfo; 55 struct timespec; 56 struct timeval; 57 struct __kernel_timex; 58 struct timezone; 59 struct tms; 60 struct utimbuf; 61 struct mq_attr; 62 struct compat_stat; 63 struct old_timeval32; 64 struct robust_list_head; 65 struct getcpu_cache; 66 struct old_linux_dirent; 67 struct perf_event_attr; 68 struct file_handle; 69 struct sigaltstack; 70 struct rseq; 71 union bpf_attr; 72 73 #include <linux/types.h> 74 #include <linux/aio_abi.h> 75 #include <linux/capability.h> 76 #include <linux/signal.h> 77 #include <linux/list.h> 78 #include <linux/bug.h> 79 #include <linux/sem.h> 80 #include <asm/siginfo.h> 81 #include <linux/unistd.h> 82 #include <linux/quota.h> 83 #include <linux/key.h> 84 #include <linux/personality.h> 85 #include <trace/syscall.h> 86 87 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 88 /* 89 * It may be useful for an architecture to override the definitions of the 90 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a 91 * different calling convention for syscalls. To allow for that, the prototypes 92 * for the sys_*() functions below will *not* be included if 93 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 94 */ 95 #include <asm/syscall_wrapper.h> 96 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 97 98 /* 99 * __MAP - apply a macro to syscall arguments 100 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to 101 * m(t1, a1), m(t2, a2), ..., m(tn, an) 102 * The first argument must be equal to the amount of type/name 103 * pairs given. Note that this list of pairs (i.e. the arguments 104 * of __MAP starting at the third one) is in the same format as 105 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n> 106 */ 107 #define __MAP0(m,...) 108 #define __MAP1(m,t,a,...) m(t,a) 109 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__) 110 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__) 111 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__) 112 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__) 113 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__) 114 #define __MAP(n,...) __MAP##n(__VA_ARGS__) 115 116 #define __SC_DECL(t, a) t a 117 #define __TYPE_AS(t, v) __same_type((__force t)0, v) 118 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L)) 119 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL)) 120 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL)) 121 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a 122 #define __SC_CAST(t, a) (__force t) a 123 #define __SC_ARGS(t, a) a 124 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long)) 125 126 #ifdef CONFIG_FTRACE_SYSCALLS 127 #define __SC_STR_ADECL(t, a) #a 128 #define __SC_STR_TDECL(t, a) #t 129 130 extern struct trace_event_class event_class_syscall_enter; 131 extern struct trace_event_class event_class_syscall_exit; 132 extern struct trace_event_functions enter_syscall_print_funcs; 133 extern struct trace_event_functions exit_syscall_print_funcs; 134 135 #define SYSCALL_TRACE_ENTER_EVENT(sname) \ 136 static struct syscall_metadata __syscall_meta_##sname; \ 137 static struct trace_event_call __used \ 138 event_enter_##sname = { \ 139 .class = &event_class_syscall_enter, \ 140 { \ 141 .name = "sys_enter"#sname, \ 142 }, \ 143 .event.funcs = &enter_syscall_print_funcs, \ 144 .data = (void *)&__syscall_meta_##sname,\ 145 .flags = TRACE_EVENT_FL_CAP_ANY, \ 146 }; \ 147 static struct trace_event_call __used \ 148 __attribute__((section("_ftrace_events"))) \ 149 *__event_enter_##sname = &event_enter_##sname; 150 151 #define SYSCALL_TRACE_EXIT_EVENT(sname) \ 152 static struct syscall_metadata __syscall_meta_##sname; \ 153 static struct trace_event_call __used \ 154 event_exit_##sname = { \ 155 .class = &event_class_syscall_exit, \ 156 { \ 157 .name = "sys_exit"#sname, \ 158 }, \ 159 .event.funcs = &exit_syscall_print_funcs, \ 160 .data = (void *)&__syscall_meta_##sname,\ 161 .flags = TRACE_EVENT_FL_CAP_ANY, \ 162 }; \ 163 static struct trace_event_call __used \ 164 __attribute__((section("_ftrace_events"))) \ 165 *__event_exit_##sname = &event_exit_##sname; 166 167 #define SYSCALL_METADATA(sname, nb, ...) \ 168 static const char *types_##sname[] = { \ 169 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \ 170 }; \ 171 static const char *args_##sname[] = { \ 172 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \ 173 }; \ 174 SYSCALL_TRACE_ENTER_EVENT(sname); \ 175 SYSCALL_TRACE_EXIT_EVENT(sname); \ 176 static struct syscall_metadata __used \ 177 __syscall_meta_##sname = { \ 178 .name = "sys"#sname, \ 179 .syscall_nr = -1, /* Filled in at boot */ \ 180 .nb_args = nb, \ 181 .types = nb ? types_##sname : NULL, \ 182 .args = nb ? args_##sname : NULL, \ 183 .enter_event = &event_enter_##sname, \ 184 .exit_event = &event_exit_##sname, \ 185 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \ 186 }; \ 187 static struct syscall_metadata __used \ 188 __attribute__((section("__syscalls_metadata"))) \ 189 *__p_syscall_meta_##sname = &__syscall_meta_##sname; 190 191 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 192 { 193 return tp_event->class == &event_class_syscall_enter || 194 tp_event->class == &event_class_syscall_exit; 195 } 196 197 #else 198 #define SYSCALL_METADATA(sname, nb, ...) 199 200 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 201 { 202 return 0; 203 } 204 #endif 205 206 #ifndef SYSCALL_DEFINE0 207 #define SYSCALL_DEFINE0(sname) \ 208 SYSCALL_METADATA(_##sname, 0); \ 209 asmlinkage long sys_##sname(void); \ 210 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \ 211 asmlinkage long sys_##sname(void) 212 #endif /* SYSCALL_DEFINE0 */ 213 214 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__) 215 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__) 216 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) 217 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__) 218 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) 219 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) 220 221 #define SYSCALL_DEFINE_MAXARGS 6 222 223 #define SYSCALL_DEFINEx(x, sname, ...) \ 224 SYSCALL_METADATA(sname, x, __VA_ARGS__) \ 225 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) 226 227 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__) 228 229 /* 230 * The asmlinkage stub is aliased to a function named __se_sys_*() which 231 * sign-extends 32-bit ints to longs whenever needed. The actual work is 232 * done within __do_sys_*(). 233 */ 234 #ifndef __SYSCALL_DEFINEx 235 #define __SYSCALL_DEFINEx(x, name, ...) \ 236 __diag_push(); \ 237 __diag_ignore(GCC, 8, "-Wattribute-alias", \ 238 "Type aliasing is used to sanitize syscall arguments");\ 239 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ 240 __attribute__((alias(__stringify(__se_sys##name)))); \ 241 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \ 242 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ 243 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ 244 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ 245 { \ 246 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\ 247 __MAP(x,__SC_TEST,__VA_ARGS__); \ 248 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \ 249 return ret; \ 250 } \ 251 __diag_pop(); \ 252 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) 253 #endif /* __SYSCALL_DEFINEx */ 254 255 /* 256 * Called before coming back to user-mode. Returning to user-mode with an 257 * address limit different than USER_DS can allow to overwrite kernel memory. 258 */ 259 static inline void addr_limit_user_check(void) 260 { 261 #ifdef TIF_FSCHECK 262 if (!test_thread_flag(TIF_FSCHECK)) 263 return; 264 #endif 265 266 if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS), 267 "Invalid address limit on user-mode return")) 268 force_sig(SIGKILL, current); 269 270 #ifdef TIF_FSCHECK 271 clear_thread_flag(TIF_FSCHECK); 272 #endif 273 } 274 275 /* 276 * These syscall function prototypes are kept in the same order as 277 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below, 278 * followed by deprecated or obsolete system calls. 279 * 280 * Please note that these prototypes here are only provided for information 281 * purposes, for static analysis, and for linking from the syscall table. 282 * These functions should not be called elsewhere from kernel code. 283 * 284 * As the syscall calling convention may be different from the default 285 * for architectures overriding the syscall calling convention, do not 286 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 287 */ 288 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 289 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx); 290 asmlinkage long sys_io_destroy(aio_context_t ctx); 291 asmlinkage long sys_io_submit(aio_context_t, long, 292 struct iocb __user * __user *); 293 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb, 294 struct io_event __user *result); 295 asmlinkage long sys_io_getevents(aio_context_t ctx_id, 296 long min_nr, 297 long nr, 298 struct io_event __user *events, 299 struct __kernel_timespec __user *timeout); 300 asmlinkage long sys_io_getevents_time32(__u32 ctx_id, 301 __s32 min_nr, 302 __s32 nr, 303 struct io_event __user *events, 304 struct old_timespec32 __user *timeout); 305 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id, 306 long min_nr, 307 long nr, 308 struct io_event __user *events, 309 struct __kernel_timespec __user *timeout, 310 const struct __aio_sigset *sig); 311 asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id, 312 long min_nr, 313 long nr, 314 struct io_event __user *events, 315 struct old_timespec32 __user *timeout, 316 const struct __aio_sigset *sig); 317 318 /* fs/xattr.c */ 319 asmlinkage long sys_setxattr(const char __user *path, const char __user *name, 320 const void __user *value, size_t size, int flags); 321 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name, 322 const void __user *value, size_t size, int flags); 323 asmlinkage long sys_fsetxattr(int fd, const char __user *name, 324 const void __user *value, size_t size, int flags); 325 asmlinkage long sys_getxattr(const char __user *path, const char __user *name, 326 void __user *value, size_t size); 327 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name, 328 void __user *value, size_t size); 329 asmlinkage long sys_fgetxattr(int fd, const char __user *name, 330 void __user *value, size_t size); 331 asmlinkage long sys_listxattr(const char __user *path, char __user *list, 332 size_t size); 333 asmlinkage long sys_llistxattr(const char __user *path, char __user *list, 334 size_t size); 335 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size); 336 asmlinkage long sys_removexattr(const char __user *path, 337 const char __user *name); 338 asmlinkage long sys_lremovexattr(const char __user *path, 339 const char __user *name); 340 asmlinkage long sys_fremovexattr(int fd, const char __user *name); 341 342 /* fs/dcache.c */ 343 asmlinkage long sys_getcwd(char __user *buf, unsigned long size); 344 345 /* fs/cookies.c */ 346 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len); 347 348 /* fs/eventfd.c */ 349 asmlinkage long sys_eventfd2(unsigned int count, int flags); 350 351 /* fs/eventpoll.c */ 352 asmlinkage long sys_epoll_create1(int flags); 353 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, 354 struct epoll_event __user *event); 355 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events, 356 int maxevents, int timeout, 357 const sigset_t __user *sigmask, 358 size_t sigsetsize); 359 360 /* fs/fcntl.c */ 361 asmlinkage long sys_dup(unsigned int fildes); 362 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags); 363 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); 364 #if BITS_PER_LONG == 32 365 asmlinkage long sys_fcntl64(unsigned int fd, 366 unsigned int cmd, unsigned long arg); 367 #endif 368 369 /* fs/inotify_user.c */ 370 asmlinkage long sys_inotify_init1(int flags); 371 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, 372 u32 mask); 373 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd); 374 375 /* fs/ioctl.c */ 376 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, 377 unsigned long arg); 378 379 /* fs/ioprio.c */ 380 asmlinkage long sys_ioprio_set(int which, int who, int ioprio); 381 asmlinkage long sys_ioprio_get(int which, int who); 382 383 /* fs/locks.c */ 384 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd); 385 386 /* fs/namei.c */ 387 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode, 388 unsigned dev); 389 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode); 390 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag); 391 asmlinkage long sys_symlinkat(const char __user * oldname, 392 int newdfd, const char __user * newname); 393 asmlinkage long sys_linkat(int olddfd, const char __user *oldname, 394 int newdfd, const char __user *newname, int flags); 395 asmlinkage long sys_renameat(int olddfd, const char __user * oldname, 396 int newdfd, const char __user * newname); 397 398 /* fs/namespace.c */ 399 asmlinkage long sys_umount(char __user *name, int flags); 400 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name, 401 char __user *type, unsigned long flags, 402 void __user *data); 403 asmlinkage long sys_pivot_root(const char __user *new_root, 404 const char __user *put_old); 405 406 /* fs/nfsctl.c */ 407 408 /* fs/open.c */ 409 asmlinkage long sys_statfs(const char __user * path, 410 struct statfs __user *buf); 411 asmlinkage long sys_statfs64(const char __user *path, size_t sz, 412 struct statfs64 __user *buf); 413 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf); 414 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz, 415 struct statfs64 __user *buf); 416 asmlinkage long sys_truncate(const char __user *path, long length); 417 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length); 418 #if BITS_PER_LONG == 32 419 asmlinkage long sys_truncate64(const char __user *path, loff_t length); 420 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length); 421 #endif 422 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len); 423 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode); 424 asmlinkage long sys_chdir(const char __user *filename); 425 asmlinkage long sys_fchdir(unsigned int fd); 426 asmlinkage long sys_chroot(const char __user *filename); 427 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode); 428 asmlinkage long sys_fchmodat(int dfd, const char __user * filename, 429 umode_t mode); 430 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user, 431 gid_t group, int flag); 432 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group); 433 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags, 434 umode_t mode); 435 asmlinkage long sys_close(unsigned int fd); 436 asmlinkage long sys_vhangup(void); 437 438 /* fs/pipe.c */ 439 asmlinkage long sys_pipe2(int __user *fildes, int flags); 440 441 /* fs/quota.c */ 442 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special, 443 qid_t id, void __user *addr); 444 445 /* fs/readdir.c */ 446 asmlinkage long sys_getdents64(unsigned int fd, 447 struct linux_dirent64 __user *dirent, 448 unsigned int count); 449 450 /* fs/read_write.c */ 451 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high, 452 unsigned long offset_low, loff_t __user *result, 453 unsigned int whence); 454 asmlinkage long sys_lseek(unsigned int fd, off_t offset, 455 unsigned int whence); 456 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count); 457 asmlinkage long sys_write(unsigned int fd, const char __user *buf, 458 size_t count); 459 asmlinkage long sys_readv(unsigned long fd, 460 const struct iovec __user *vec, 461 unsigned long vlen); 462 asmlinkage long sys_writev(unsigned long fd, 463 const struct iovec __user *vec, 464 unsigned long vlen); 465 asmlinkage long sys_pread64(unsigned int fd, char __user *buf, 466 size_t count, loff_t pos); 467 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf, 468 size_t count, loff_t pos); 469 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec, 470 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 471 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec, 472 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 473 474 /* fs/sendfile.c */ 475 asmlinkage long sys_sendfile64(int out_fd, int in_fd, 476 loff_t __user *offset, size_t count); 477 478 /* fs/select.c */ 479 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *, 480 fd_set __user *, struct __kernel_timespec __user *, 481 void __user *); 482 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *, 483 fd_set __user *, struct old_timespec32 __user *, 484 void __user *); 485 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int, 486 struct __kernel_timespec __user *, const sigset_t __user *, 487 size_t); 488 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int, 489 struct old_timespec32 __user *, const sigset_t __user *, 490 size_t); 491 492 /* fs/signalfd.c */ 493 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags); 494 495 /* fs/splice.c */ 496 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov, 497 unsigned long nr_segs, unsigned int flags); 498 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in, 499 int fd_out, loff_t __user *off_out, 500 size_t len, unsigned int flags); 501 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags); 502 503 /* fs/stat.c */ 504 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf, 505 int bufsiz); 506 asmlinkage long sys_newfstatat(int dfd, const char __user *filename, 507 struct stat __user *statbuf, int flag); 508 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf); 509 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 510 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf); 511 asmlinkage long sys_fstatat64(int dfd, const char __user *filename, 512 struct stat64 __user *statbuf, int flag); 513 #endif 514 515 /* fs/sync.c */ 516 asmlinkage long sys_sync(void); 517 asmlinkage long sys_fsync(unsigned int fd); 518 asmlinkage long sys_fdatasync(unsigned int fd); 519 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags, 520 loff_t offset, loff_t nbytes); 521 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 522 unsigned int flags); 523 524 /* fs/timerfd.c */ 525 asmlinkage long sys_timerfd_create(int clockid, int flags); 526 asmlinkage long sys_timerfd_settime(int ufd, int flags, 527 const struct __kernel_itimerspec __user *utmr, 528 struct __kernel_itimerspec __user *otmr); 529 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr); 530 asmlinkage long sys_timerfd_gettime32(int ufd, 531 struct old_itimerspec32 __user *otmr); 532 asmlinkage long sys_timerfd_settime32(int ufd, int flags, 533 const struct old_itimerspec32 __user *utmr, 534 struct old_itimerspec32 __user *otmr); 535 536 /* fs/utimes.c */ 537 asmlinkage long sys_utimensat(int dfd, const char __user *filename, 538 struct __kernel_timespec __user *utimes, 539 int flags); 540 asmlinkage long sys_utimensat_time32(unsigned int dfd, 541 const char __user *filename, 542 struct old_timespec32 __user *t, int flags); 543 544 /* kernel/acct.c */ 545 asmlinkage long sys_acct(const char __user *name); 546 547 /* kernel/capability.c */ 548 asmlinkage long sys_capget(cap_user_header_t header, 549 cap_user_data_t dataptr); 550 asmlinkage long sys_capset(cap_user_header_t header, 551 const cap_user_data_t data); 552 553 /* kernel/exec_domain.c */ 554 asmlinkage long sys_personality(unsigned int personality); 555 556 /* kernel/exit.c */ 557 asmlinkage long sys_exit(int error_code); 558 asmlinkage long sys_exit_group(int error_code); 559 asmlinkage long sys_waitid(int which, pid_t pid, 560 struct siginfo __user *infop, 561 int options, struct rusage __user *ru); 562 563 /* kernel/fork.c */ 564 asmlinkage long sys_set_tid_address(int __user *tidptr); 565 asmlinkage long sys_unshare(unsigned long unshare_flags); 566 567 /* kernel/futex.c */ 568 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val, 569 struct __kernel_timespec __user *utime, u32 __user *uaddr2, 570 u32 val3); 571 asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val, 572 struct old_timespec32 __user *utime, u32 __user *uaddr2, 573 u32 val3); 574 asmlinkage long sys_get_robust_list(int pid, 575 struct robust_list_head __user * __user *head_ptr, 576 size_t __user *len_ptr); 577 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, 578 size_t len); 579 580 /* kernel/hrtimer.c */ 581 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp, 582 struct __kernel_timespec __user *rmtp); 583 asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp, 584 struct old_timespec32 __user *rmtp); 585 586 /* kernel/itimer.c */ 587 asmlinkage long sys_getitimer(int which, struct itimerval __user *value); 588 asmlinkage long sys_setitimer(int which, 589 struct itimerval __user *value, 590 struct itimerval __user *ovalue); 591 592 /* kernel/kexec.c */ 593 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments, 594 struct kexec_segment __user *segments, 595 unsigned long flags); 596 597 /* kernel/module.c */ 598 asmlinkage long sys_init_module(void __user *umod, unsigned long len, 599 const char __user *uargs); 600 asmlinkage long sys_delete_module(const char __user *name_user, 601 unsigned int flags); 602 603 /* kernel/posix-timers.c */ 604 asmlinkage long sys_timer_create(clockid_t which_clock, 605 struct sigevent __user *timer_event_spec, 606 timer_t __user * created_timer_id); 607 asmlinkage long sys_timer_gettime(timer_t timer_id, 608 struct __kernel_itimerspec __user *setting); 609 asmlinkage long sys_timer_getoverrun(timer_t timer_id); 610 asmlinkage long sys_timer_settime(timer_t timer_id, int flags, 611 const struct __kernel_itimerspec __user *new_setting, 612 struct __kernel_itimerspec __user *old_setting); 613 asmlinkage long sys_timer_delete(timer_t timer_id); 614 asmlinkage long sys_clock_settime(clockid_t which_clock, 615 const struct __kernel_timespec __user *tp); 616 asmlinkage long sys_clock_gettime(clockid_t which_clock, 617 struct __kernel_timespec __user *tp); 618 asmlinkage long sys_clock_getres(clockid_t which_clock, 619 struct __kernel_timespec __user *tp); 620 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags, 621 const struct __kernel_timespec __user *rqtp, 622 struct __kernel_timespec __user *rmtp); 623 asmlinkage long sys_timer_gettime32(timer_t timer_id, 624 struct old_itimerspec32 __user *setting); 625 asmlinkage long sys_timer_settime32(timer_t timer_id, int flags, 626 struct old_itimerspec32 __user *new, 627 struct old_itimerspec32 __user *old); 628 asmlinkage long sys_clock_settime32(clockid_t which_clock, 629 struct old_timespec32 __user *tp); 630 asmlinkage long sys_clock_gettime32(clockid_t which_clock, 631 struct old_timespec32 __user *tp); 632 asmlinkage long sys_clock_getres_time32(clockid_t which_clock, 633 struct old_timespec32 __user *tp); 634 asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags, 635 struct old_timespec32 __user *rqtp, 636 struct old_timespec32 __user *rmtp); 637 638 /* kernel/printk.c */ 639 asmlinkage long sys_syslog(int type, char __user *buf, int len); 640 641 /* kernel/ptrace.c */ 642 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, 643 unsigned long data); 644 /* kernel/sched/core.c */ 645 646 asmlinkage long sys_sched_setparam(pid_t pid, 647 struct sched_param __user *param); 648 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy, 649 struct sched_param __user *param); 650 asmlinkage long sys_sched_getscheduler(pid_t pid); 651 asmlinkage long sys_sched_getparam(pid_t pid, 652 struct sched_param __user *param); 653 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len, 654 unsigned long __user *user_mask_ptr); 655 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len, 656 unsigned long __user *user_mask_ptr); 657 asmlinkage long sys_sched_yield(void); 658 asmlinkage long sys_sched_get_priority_max(int policy); 659 asmlinkage long sys_sched_get_priority_min(int policy); 660 asmlinkage long sys_sched_rr_get_interval(pid_t pid, 661 struct __kernel_timespec __user *interval); 662 asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid, 663 struct old_timespec32 __user *interval); 664 665 /* kernel/signal.c */ 666 asmlinkage long sys_restart_syscall(void); 667 asmlinkage long sys_kill(pid_t pid, int sig); 668 asmlinkage long sys_tkill(pid_t pid, int sig); 669 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig); 670 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss, 671 struct sigaltstack __user *uoss); 672 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize); 673 #ifndef CONFIG_ODD_RT_SIGACTION 674 asmlinkage long sys_rt_sigaction(int, 675 const struct sigaction __user *, 676 struct sigaction __user *, 677 size_t); 678 #endif 679 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set, 680 sigset_t __user *oset, size_t sigsetsize); 681 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize); 682 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese, 683 siginfo_t __user *uinfo, 684 const struct __kernel_timespec __user *uts, 685 size_t sigsetsize); 686 asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese, 687 siginfo_t __user *uinfo, 688 const struct old_timespec32 __user *uts, 689 size_t sigsetsize); 690 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo); 691 692 /* kernel/sys.c */ 693 asmlinkage long sys_setpriority(int which, int who, int niceval); 694 asmlinkage long sys_getpriority(int which, int who); 695 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, 696 void __user *arg); 697 asmlinkage long sys_setregid(gid_t rgid, gid_t egid); 698 asmlinkage long sys_setgid(gid_t gid); 699 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid); 700 asmlinkage long sys_setuid(uid_t uid); 701 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid); 702 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid); 703 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid); 704 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid); 705 asmlinkage long sys_setfsuid(uid_t uid); 706 asmlinkage long sys_setfsgid(gid_t gid); 707 asmlinkage long sys_times(struct tms __user *tbuf); 708 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid); 709 asmlinkage long sys_getpgid(pid_t pid); 710 asmlinkage long sys_getsid(pid_t pid); 711 asmlinkage long sys_setsid(void); 712 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist); 713 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist); 714 asmlinkage long sys_newuname(struct new_utsname __user *name); 715 asmlinkage long sys_sethostname(char __user *name, int len); 716 asmlinkage long sys_setdomainname(char __user *name, int len); 717 asmlinkage long sys_getrlimit(unsigned int resource, 718 struct rlimit __user *rlim); 719 asmlinkage long sys_setrlimit(unsigned int resource, 720 struct rlimit __user *rlim); 721 asmlinkage long sys_getrusage(int who, struct rusage __user *ru); 722 asmlinkage long sys_umask(int mask); 723 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, 724 unsigned long arg4, unsigned long arg5); 725 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache); 726 727 /* kernel/time.c */ 728 asmlinkage long sys_gettimeofday(struct timeval __user *tv, 729 struct timezone __user *tz); 730 asmlinkage long sys_settimeofday(struct timeval __user *tv, 731 struct timezone __user *tz); 732 asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p); 733 asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p); 734 735 /* kernel/timer.c */ 736 asmlinkage long sys_getpid(void); 737 asmlinkage long sys_getppid(void); 738 asmlinkage long sys_getuid(void); 739 asmlinkage long sys_geteuid(void); 740 asmlinkage long sys_getgid(void); 741 asmlinkage long sys_getegid(void); 742 asmlinkage long sys_gettid(void); 743 asmlinkage long sys_sysinfo(struct sysinfo __user *info); 744 745 /* ipc/mqueue.c */ 746 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr); 747 asmlinkage long sys_mq_unlink(const char __user *name); 748 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); 749 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); 750 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification); 751 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat); 752 asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes, 753 char __user *u_msg_ptr, 754 unsigned int msg_len, unsigned int __user *u_msg_prio, 755 const struct old_timespec32 __user *u_abs_timeout); 756 asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes, 757 const char __user *u_msg_ptr, 758 unsigned int msg_len, unsigned int msg_prio, 759 const struct old_timespec32 __user *u_abs_timeout); 760 761 /* ipc/msg.c */ 762 asmlinkage long sys_msgget(key_t key, int msgflg); 763 asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 764 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 765 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp, 766 size_t msgsz, long msgtyp, int msgflg); 767 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp, 768 size_t msgsz, int msgflg); 769 770 /* ipc/sem.c */ 771 asmlinkage long sys_semget(key_t key, int nsems, int semflg); 772 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg); 773 asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg); 774 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops, 775 unsigned nsops, 776 const struct __kernel_timespec __user *timeout); 777 asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops, 778 unsigned nsops, 779 const struct old_timespec32 __user *timeout); 780 asmlinkage long sys_semop(int semid, struct sembuf __user *sops, 781 unsigned nsops); 782 783 /* ipc/shm.c */ 784 asmlinkage long sys_shmget(key_t key, size_t size, int flag); 785 asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 786 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 787 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg); 788 asmlinkage long sys_shmdt(char __user *shmaddr); 789 790 /* net/socket.c */ 791 asmlinkage long sys_socket(int, int, int); 792 asmlinkage long sys_socketpair(int, int, int, int __user *); 793 asmlinkage long sys_bind(int, struct sockaddr __user *, int); 794 asmlinkage long sys_listen(int, int); 795 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *); 796 asmlinkage long sys_connect(int, struct sockaddr __user *, int); 797 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *); 798 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *); 799 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned, 800 struct sockaddr __user *, int); 801 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned, 802 struct sockaddr __user *, int __user *); 803 asmlinkage long sys_setsockopt(int fd, int level, int optname, 804 char __user *optval, int optlen); 805 asmlinkage long sys_getsockopt(int fd, int level, int optname, 806 char __user *optval, int __user *optlen); 807 asmlinkage long sys_shutdown(int, int); 808 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 809 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 810 811 /* mm/filemap.c */ 812 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count); 813 814 /* mm/nommu.c, also with MMU */ 815 asmlinkage long sys_brk(unsigned long brk); 816 asmlinkage long sys_munmap(unsigned long addr, size_t len); 817 asmlinkage long sys_mremap(unsigned long addr, 818 unsigned long old_len, unsigned long new_len, 819 unsigned long flags, unsigned long new_addr); 820 821 /* security/keys/keyctl.c */ 822 asmlinkage long sys_add_key(const char __user *_type, 823 const char __user *_description, 824 const void __user *_payload, 825 size_t plen, 826 key_serial_t destringid); 827 asmlinkage long sys_request_key(const char __user *_type, 828 const char __user *_description, 829 const char __user *_callout_info, 830 key_serial_t destringid); 831 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3, 832 unsigned long arg4, unsigned long arg5); 833 834 /* arch/example/kernel/sys_example.c */ 835 #ifdef CONFIG_CLONE_BACKWARDS 836 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long, 837 int __user *); 838 #else 839 #ifdef CONFIG_CLONE_BACKWARDS3 840 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *, 841 int __user *, unsigned long); 842 #else 843 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, 844 int __user *, unsigned long); 845 #endif 846 #endif 847 asmlinkage long sys_execve(const char __user *filename, 848 const char __user *const __user *argv, 849 const char __user *const __user *envp); 850 851 /* mm/fadvise.c */ 852 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 853 854 /* mm/, CONFIG_MMU only */ 855 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags); 856 asmlinkage long sys_swapoff(const char __user *specialfile); 857 asmlinkage long sys_mprotect(unsigned long start, size_t len, 858 unsigned long prot); 859 asmlinkage long sys_msync(unsigned long start, size_t len, int flags); 860 asmlinkage long sys_mlock(unsigned long start, size_t len); 861 asmlinkage long sys_munlock(unsigned long start, size_t len); 862 asmlinkage long sys_mlockall(int flags); 863 asmlinkage long sys_munlockall(void); 864 asmlinkage long sys_mincore(unsigned long start, size_t len, 865 unsigned char __user * vec); 866 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior); 867 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, 868 unsigned long prot, unsigned long pgoff, 869 unsigned long flags); 870 asmlinkage long sys_mbind(unsigned long start, unsigned long len, 871 unsigned long mode, 872 const unsigned long __user *nmask, 873 unsigned long maxnode, 874 unsigned flags); 875 asmlinkage long sys_get_mempolicy(int __user *policy, 876 unsigned long __user *nmask, 877 unsigned long maxnode, 878 unsigned long addr, unsigned long flags); 879 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask, 880 unsigned long maxnode); 881 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode, 882 const unsigned long __user *from, 883 const unsigned long __user *to); 884 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages, 885 const void __user * __user *pages, 886 const int __user *nodes, 887 int __user *status, 888 int flags); 889 890 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, 891 siginfo_t __user *uinfo); 892 asmlinkage long sys_perf_event_open( 893 struct perf_event_attr __user *attr_uptr, 894 pid_t pid, int cpu, int group_fd, unsigned long flags); 895 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int); 896 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg, 897 unsigned int vlen, unsigned flags, 898 struct __kernel_timespec __user *timeout); 899 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg, 900 unsigned int vlen, unsigned flags, 901 struct old_timespec32 __user *timeout); 902 903 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr, 904 int options, struct rusage __user *ru); 905 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource, 906 const struct rlimit64 __user *new_rlim, 907 struct rlimit64 __user *old_rlim); 908 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags); 909 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags, 910 u64 mask, int fd, 911 const char __user *pathname); 912 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name, 913 struct file_handle __user *handle, 914 int __user *mnt_id, int flag); 915 asmlinkage long sys_open_by_handle_at(int mountdirfd, 916 struct file_handle __user *handle, 917 int flags); 918 asmlinkage long sys_clock_adjtime(clockid_t which_clock, 919 struct __kernel_timex __user *tx); 920 asmlinkage long sys_clock_adjtime32(clockid_t which_clock, 921 struct old_timex32 __user *tx); 922 asmlinkage long sys_syncfs(int fd); 923 asmlinkage long sys_setns(int fd, int nstype); 924 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg, 925 unsigned int vlen, unsigned flags); 926 asmlinkage long sys_process_vm_readv(pid_t pid, 927 const struct iovec __user *lvec, 928 unsigned long liovcnt, 929 const struct iovec __user *rvec, 930 unsigned long riovcnt, 931 unsigned long flags); 932 asmlinkage long sys_process_vm_writev(pid_t pid, 933 const struct iovec __user *lvec, 934 unsigned long liovcnt, 935 const struct iovec __user *rvec, 936 unsigned long riovcnt, 937 unsigned long flags); 938 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type, 939 unsigned long idx1, unsigned long idx2); 940 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags); 941 asmlinkage long sys_sched_setattr(pid_t pid, 942 struct sched_attr __user *attr, 943 unsigned int flags); 944 asmlinkage long sys_sched_getattr(pid_t pid, 945 struct sched_attr __user *attr, 946 unsigned int size, 947 unsigned int flags); 948 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname, 949 int newdfd, const char __user *newname, 950 unsigned int flags); 951 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, 952 void __user *uargs); 953 asmlinkage long sys_getrandom(char __user *buf, size_t count, 954 unsigned int flags); 955 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags); 956 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size); 957 asmlinkage long sys_execveat(int dfd, const char __user *filename, 958 const char __user *const __user *argv, 959 const char __user *const __user *envp, int flags); 960 asmlinkage long sys_userfaultfd(int flags); 961 asmlinkage long sys_membarrier(int cmd, int flags); 962 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags); 963 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in, 964 int fd_out, loff_t __user *off_out, 965 size_t len, unsigned int flags); 966 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec, 967 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 968 rwf_t flags); 969 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec, 970 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 971 rwf_t flags); 972 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len, 973 unsigned long prot, int pkey); 974 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val); 975 asmlinkage long sys_pkey_free(int pkey); 976 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags, 977 unsigned mask, struct statx __user *buffer); 978 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len, 979 int flags, uint32_t sig); 980 981 /* 982 * Architecture-specific system calls 983 */ 984 985 /* arch/x86/kernel/ioport.c */ 986 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); 987 988 /* pciconfig: alpha, arm, arm64, ia64, sparc */ 989 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn, 990 unsigned long off, unsigned long len, 991 void __user *buf); 992 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn, 993 unsigned long off, unsigned long len, 994 void __user *buf); 995 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn); 996 997 /* powerpc */ 998 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc, 999 __u32 __user *ustatus); 1000 asmlinkage long sys_spu_create(const char __user *name, 1001 unsigned int flags, umode_t mode, int fd); 1002 1003 1004 /* 1005 * Deprecated system calls which are still defined in 1006 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch 1007 */ 1008 1009 /* __ARCH_WANT_SYSCALL_NO_AT */ 1010 asmlinkage long sys_open(const char __user *filename, 1011 int flags, umode_t mode); 1012 asmlinkage long sys_link(const char __user *oldname, 1013 const char __user *newname); 1014 asmlinkage long sys_unlink(const char __user *pathname); 1015 asmlinkage long sys_mknod(const char __user *filename, umode_t mode, 1016 unsigned dev); 1017 asmlinkage long sys_chmod(const char __user *filename, umode_t mode); 1018 asmlinkage long sys_chown(const char __user *filename, 1019 uid_t user, gid_t group); 1020 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode); 1021 asmlinkage long sys_rmdir(const char __user *pathname); 1022 asmlinkage long sys_lchown(const char __user *filename, 1023 uid_t user, gid_t group); 1024 asmlinkage long sys_access(const char __user *filename, int mode); 1025 asmlinkage long sys_rename(const char __user *oldname, 1026 const char __user *newname); 1027 asmlinkage long sys_symlink(const char __user *old, const char __user *new); 1028 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 1029 asmlinkage long sys_stat64(const char __user *filename, 1030 struct stat64 __user *statbuf); 1031 asmlinkage long sys_lstat64(const char __user *filename, 1032 struct stat64 __user *statbuf); 1033 #endif 1034 1035 /* __ARCH_WANT_SYSCALL_NO_FLAGS */ 1036 asmlinkage long sys_pipe(int __user *fildes); 1037 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd); 1038 asmlinkage long sys_epoll_create(int size); 1039 asmlinkage long sys_inotify_init(void); 1040 asmlinkage long sys_eventfd(unsigned int count); 1041 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask); 1042 1043 /* __ARCH_WANT_SYSCALL_OFF_T */ 1044 asmlinkage long sys_sendfile(int out_fd, int in_fd, 1045 off_t __user *offset, size_t count); 1046 asmlinkage long sys_newstat(const char __user *filename, 1047 struct stat __user *statbuf); 1048 asmlinkage long sys_newlstat(const char __user *filename, 1049 struct stat __user *statbuf); 1050 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice); 1051 1052 /* __ARCH_WANT_SYSCALL_DEPRECATED */ 1053 asmlinkage long sys_alarm(unsigned int seconds); 1054 asmlinkage long sys_getpgrp(void); 1055 asmlinkage long sys_pause(void); 1056 asmlinkage long sys_time(time_t __user *tloc); 1057 asmlinkage long sys_time32(old_time32_t __user *tloc); 1058 #ifdef __ARCH_WANT_SYS_UTIME 1059 asmlinkage long sys_utime(char __user *filename, 1060 struct utimbuf __user *times); 1061 asmlinkage long sys_utimes(char __user *filename, 1062 struct timeval __user *utimes); 1063 asmlinkage long sys_futimesat(int dfd, const char __user *filename, 1064 struct timeval __user *utimes); 1065 #endif 1066 asmlinkage long sys_futimesat_time32(unsigned int dfd, 1067 const char __user *filename, 1068 struct old_timeval32 __user *t); 1069 asmlinkage long sys_utime32(const char __user *filename, 1070 struct old_utimbuf32 __user *t); 1071 asmlinkage long sys_utimes_time32(const char __user *filename, 1072 struct old_timeval32 __user *t); 1073 asmlinkage long sys_creat(const char __user *pathname, umode_t mode); 1074 asmlinkage long sys_getdents(unsigned int fd, 1075 struct linux_dirent __user *dirent, 1076 unsigned int count); 1077 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp, 1078 fd_set __user *exp, struct timeval __user *tvp); 1079 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds, 1080 int timeout); 1081 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, 1082 int maxevents, int timeout); 1083 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf); 1084 asmlinkage long sys_vfork(void); 1085 asmlinkage long sys_recv(int, void __user *, size_t, unsigned); 1086 asmlinkage long sys_send(int, void __user *, size_t, unsigned); 1087 asmlinkage long sys_bdflush(int func, long data); 1088 asmlinkage long sys_oldumount(char __user *name); 1089 asmlinkage long sys_uselib(const char __user *library); 1090 asmlinkage long sys_sysctl(struct __sysctl_args __user *args); 1091 asmlinkage long sys_sysfs(int option, 1092 unsigned long arg1, unsigned long arg2); 1093 asmlinkage long sys_fork(void); 1094 1095 /* obsolete: kernel/time/time.c */ 1096 asmlinkage long sys_stime(time_t __user *tptr); 1097 asmlinkage long sys_stime32(old_time32_t __user *tptr); 1098 1099 /* obsolete: kernel/signal.c */ 1100 asmlinkage long sys_sigpending(old_sigset_t __user *uset); 1101 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set, 1102 old_sigset_t __user *oset); 1103 #ifdef CONFIG_OLD_SIGSUSPEND 1104 asmlinkage long sys_sigsuspend(old_sigset_t mask); 1105 #endif 1106 1107 #ifdef CONFIG_OLD_SIGSUSPEND3 1108 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask); 1109 #endif 1110 1111 #ifdef CONFIG_OLD_SIGACTION 1112 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *, 1113 struct old_sigaction __user *); 1114 #endif 1115 asmlinkage long sys_sgetmask(void); 1116 asmlinkage long sys_ssetmask(int newmask); 1117 asmlinkage long sys_signal(int sig, __sighandler_t handler); 1118 1119 /* obsolete: kernel/sched/core.c */ 1120 asmlinkage long sys_nice(int increment); 1121 1122 /* obsolete: kernel/kexec_file.c */ 1123 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd, 1124 unsigned long cmdline_len, 1125 const char __user *cmdline_ptr, 1126 unsigned long flags); 1127 1128 /* obsolete: kernel/exit.c */ 1129 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options); 1130 1131 /* obsolete: kernel/uid16.c */ 1132 #ifdef CONFIG_HAVE_UID16 1133 asmlinkage long sys_chown16(const char __user *filename, 1134 old_uid_t user, old_gid_t group); 1135 asmlinkage long sys_lchown16(const char __user *filename, 1136 old_uid_t user, old_gid_t group); 1137 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group); 1138 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid); 1139 asmlinkage long sys_setgid16(old_gid_t gid); 1140 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid); 1141 asmlinkage long sys_setuid16(old_uid_t uid); 1142 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid); 1143 asmlinkage long sys_getresuid16(old_uid_t __user *ruid, 1144 old_uid_t __user *euid, old_uid_t __user *suid); 1145 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid); 1146 asmlinkage long sys_getresgid16(old_gid_t __user *rgid, 1147 old_gid_t __user *egid, old_gid_t __user *sgid); 1148 asmlinkage long sys_setfsuid16(old_uid_t uid); 1149 asmlinkage long sys_setfsgid16(old_gid_t gid); 1150 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist); 1151 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist); 1152 asmlinkage long sys_getuid16(void); 1153 asmlinkage long sys_geteuid16(void); 1154 asmlinkage long sys_getgid16(void); 1155 asmlinkage long sys_getegid16(void); 1156 #endif 1157 1158 /* obsolete: net/socket.c */ 1159 asmlinkage long sys_socketcall(int call, unsigned long __user *args); 1160 1161 /* obsolete: fs/stat.c */ 1162 asmlinkage long sys_stat(const char __user *filename, 1163 struct __old_kernel_stat __user *statbuf); 1164 asmlinkage long sys_lstat(const char __user *filename, 1165 struct __old_kernel_stat __user *statbuf); 1166 asmlinkage long sys_fstat(unsigned int fd, 1167 struct __old_kernel_stat __user *statbuf); 1168 asmlinkage long sys_readlink(const char __user *path, 1169 char __user *buf, int bufsiz); 1170 1171 /* obsolete: fs/select.c */ 1172 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg); 1173 1174 /* obsolete: fs/readdir.c */ 1175 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int); 1176 1177 /* obsolete: kernel/sys.c */ 1178 asmlinkage long sys_gethostname(char __user *name, int len); 1179 asmlinkage long sys_uname(struct old_utsname __user *); 1180 asmlinkage long sys_olduname(struct oldold_utsname __user *); 1181 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT 1182 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim); 1183 #endif 1184 1185 /* obsolete: ipc */ 1186 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second, 1187 unsigned long third, void __user *ptr, long fifth); 1188 1189 /* obsolete: mm/ */ 1190 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len, 1191 unsigned long prot, unsigned long flags, 1192 unsigned long fd, unsigned long pgoff); 1193 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg); 1194 1195 1196 /* 1197 * Not a real system call, but a placeholder for syscalls which are 1198 * not implemented -- see kernel/sys_ni.c 1199 */ 1200 asmlinkage long sys_ni_syscall(void); 1201 1202 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 1203 1204 1205 /* 1206 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly. 1207 * Instead, use one of the functions which work equivalently, such as 1208 * the ksys_xyzyyz() functions prototyped below. 1209 */ 1210 1211 int ksys_mount(char __user *dev_name, char __user *dir_name, char __user *type, 1212 unsigned long flags, void __user *data); 1213 int ksys_umount(char __user *name, int flags); 1214 int ksys_dup(unsigned int fildes); 1215 int ksys_chroot(const char __user *filename); 1216 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count); 1217 int ksys_chdir(const char __user *filename); 1218 int ksys_fchmod(unsigned int fd, umode_t mode); 1219 int ksys_fchown(unsigned int fd, uid_t user, gid_t group); 1220 int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent, 1221 unsigned int count); 1222 int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg); 1223 off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence); 1224 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count); 1225 void ksys_sync(void); 1226 int ksys_unshare(unsigned long unshare_flags); 1227 int ksys_setsid(void); 1228 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 1229 unsigned int flags); 1230 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count, 1231 loff_t pos); 1232 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf, 1233 size_t count, loff_t pos); 1234 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len); 1235 #ifdef CONFIG_ADVISE_SYSCALLS 1236 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 1237 #else 1238 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, 1239 int advice) 1240 { 1241 return -EINVAL; 1242 } 1243 #endif 1244 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len, 1245 unsigned long prot, unsigned long flags, 1246 unsigned long fd, unsigned long pgoff); 1247 ssize_t ksys_readahead(int fd, loff_t offset, size_t count); 1248 int ksys_ipc(unsigned int call, int first, unsigned long second, 1249 unsigned long third, void __user * ptr, long fifth); 1250 int compat_ksys_ipc(u32 call, int first, int second, 1251 u32 third, u32 ptr, u32 fifth); 1252 1253 /* 1254 * The following kernel syscall equivalents are just wrappers to fs-internal 1255 * functions. Therefore, provide stubs to be inlined at the callsites. 1256 */ 1257 extern long do_unlinkat(int dfd, struct filename *name); 1258 1259 static inline long ksys_unlink(const char __user *pathname) 1260 { 1261 return do_unlinkat(AT_FDCWD, getname(pathname)); 1262 } 1263 1264 extern long do_rmdir(int dfd, const char __user *pathname); 1265 1266 static inline long ksys_rmdir(const char __user *pathname) 1267 { 1268 return do_rmdir(AT_FDCWD, pathname); 1269 } 1270 1271 extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode); 1272 1273 static inline long ksys_mkdir(const char __user *pathname, umode_t mode) 1274 { 1275 return do_mkdirat(AT_FDCWD, pathname, mode); 1276 } 1277 1278 extern long do_symlinkat(const char __user *oldname, int newdfd, 1279 const char __user *newname); 1280 1281 static inline long ksys_symlink(const char __user *oldname, 1282 const char __user *newname) 1283 { 1284 return do_symlinkat(oldname, AT_FDCWD, newname); 1285 } 1286 1287 extern long do_mknodat(int dfd, const char __user *filename, umode_t mode, 1288 unsigned int dev); 1289 1290 static inline long ksys_mknod(const char __user *filename, umode_t mode, 1291 unsigned int dev) 1292 { 1293 return do_mknodat(AT_FDCWD, filename, mode, dev); 1294 } 1295 1296 extern int do_linkat(int olddfd, const char __user *oldname, int newdfd, 1297 const char __user *newname, int flags); 1298 1299 static inline long ksys_link(const char __user *oldname, 1300 const char __user *newname) 1301 { 1302 return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0); 1303 } 1304 1305 extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode); 1306 1307 static inline int ksys_chmod(const char __user *filename, umode_t mode) 1308 { 1309 return do_fchmodat(AT_FDCWD, filename, mode); 1310 } 1311 1312 extern long do_faccessat(int dfd, const char __user *filename, int mode); 1313 1314 static inline long ksys_access(const char __user *filename, int mode) 1315 { 1316 return do_faccessat(AT_FDCWD, filename, mode); 1317 } 1318 1319 extern int do_fchownat(int dfd, const char __user *filename, uid_t user, 1320 gid_t group, int flag); 1321 1322 static inline long ksys_chown(const char __user *filename, uid_t user, 1323 gid_t group) 1324 { 1325 return do_fchownat(AT_FDCWD, filename, user, group, 0); 1326 } 1327 1328 static inline long ksys_lchown(const char __user *filename, uid_t user, 1329 gid_t group) 1330 { 1331 return do_fchownat(AT_FDCWD, filename, user, group, 1332 AT_SYMLINK_NOFOLLOW); 1333 } 1334 1335 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small); 1336 1337 static inline long ksys_ftruncate(unsigned int fd, unsigned long length) 1338 { 1339 return do_sys_ftruncate(fd, length, 1); 1340 } 1341 1342 extern int __close_fd(struct files_struct *files, unsigned int fd); 1343 1344 /* 1345 * In contrast to sys_close(), this stub does not check whether the syscall 1346 * should or should not be restarted, but returns the raw error codes from 1347 * __close_fd(). 1348 */ 1349 static inline int ksys_close(unsigned int fd) 1350 { 1351 return __close_fd(current->files, fd); 1352 } 1353 1354 extern long do_sys_open(int dfd, const char __user *filename, int flags, 1355 umode_t mode); 1356 1357 static inline long ksys_open(const char __user *filename, int flags, 1358 umode_t mode) 1359 { 1360 if (force_o_largefile()) 1361 flags |= O_LARGEFILE; 1362 return do_sys_open(AT_FDCWD, filename, flags, mode); 1363 } 1364 1365 extern long do_sys_truncate(const char __user *pathname, loff_t length); 1366 1367 static inline long ksys_truncate(const char __user *pathname, loff_t length) 1368 { 1369 return do_sys_truncate(pathname, length); 1370 } 1371 1372 static inline unsigned int ksys_personality(unsigned int personality) 1373 { 1374 unsigned int old = current->personality; 1375 1376 if (personality != 0xffffffff) 1377 set_personality(personality); 1378 1379 return old; 1380 } 1381 1382 #endif 1383