1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * syscalls.h - Linux syscall interfaces (non-arch-specific) 4 * 5 * Copyright (c) 2004 Randy Dunlap 6 * Copyright (c) 2004 Open Source Development Labs 7 */ 8 9 #ifndef _LINUX_SYSCALLS_H 10 #define _LINUX_SYSCALLS_H 11 12 struct __aio_sigset; 13 struct epoll_event; 14 struct iattr; 15 struct inode; 16 struct iocb; 17 struct io_event; 18 struct iovec; 19 struct __kernel_old_itimerval; 20 struct kexec_segment; 21 struct linux_dirent; 22 struct linux_dirent64; 23 struct list_head; 24 struct mmap_arg_struct; 25 struct msgbuf; 26 struct user_msghdr; 27 struct mmsghdr; 28 struct msqid_ds; 29 struct new_utsname; 30 struct nfsctl_arg; 31 struct __old_kernel_stat; 32 struct oldold_utsname; 33 struct old_utsname; 34 struct pollfd; 35 struct rlimit; 36 struct rlimit64; 37 struct rusage; 38 struct sched_param; 39 struct sched_attr; 40 struct sel_arg_struct; 41 struct semaphore; 42 struct sembuf; 43 struct shmid_ds; 44 struct sockaddr; 45 struct stat; 46 struct stat64; 47 struct statfs; 48 struct statfs64; 49 struct statx; 50 struct sysinfo; 51 struct timespec; 52 struct __kernel_old_timeval; 53 struct __kernel_timex; 54 struct timezone; 55 struct tms; 56 struct utimbuf; 57 struct mq_attr; 58 struct compat_stat; 59 struct old_timeval32; 60 struct robust_list_head; 61 struct futex_waitv; 62 struct getcpu_cache; 63 struct old_linux_dirent; 64 struct perf_event_attr; 65 struct file_handle; 66 struct sigaltstack; 67 struct rseq; 68 union bpf_attr; 69 struct io_uring_params; 70 struct clone_args; 71 struct open_how; 72 struct mount_attr; 73 struct landlock_ruleset_attr; 74 enum landlock_rule_type; 75 76 #include <linux/types.h> 77 #include <linux/aio_abi.h> 78 #include <linux/capability.h> 79 #include <linux/signal.h> 80 #include <linux/list.h> 81 #include <linux/bug.h> 82 #include <linux/sem.h> 83 #include <asm/siginfo.h> 84 #include <linux/unistd.h> 85 #include <linux/quota.h> 86 #include <linux/key.h> 87 #include <linux/personality.h> 88 #include <trace/syscall.h> 89 90 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 91 /* 92 * It may be useful for an architecture to override the definitions of the 93 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a 94 * different calling convention for syscalls. To allow for that, the prototypes 95 * for the sys_*() functions below will *not* be included if 96 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 97 */ 98 #include <asm/syscall_wrapper.h> 99 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 100 101 /* 102 * __MAP - apply a macro to syscall arguments 103 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to 104 * m(t1, a1), m(t2, a2), ..., m(tn, an) 105 * The first argument must be equal to the amount of type/name 106 * pairs given. Note that this list of pairs (i.e. the arguments 107 * of __MAP starting at the third one) is in the same format as 108 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n> 109 */ 110 #define __MAP0(m,...) 111 #define __MAP1(m,t,a,...) m(t,a) 112 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__) 113 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__) 114 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__) 115 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__) 116 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__) 117 #define __MAP(n,...) __MAP##n(__VA_ARGS__) 118 119 #define __SC_DECL(t, a) t a 120 #define __TYPE_AS(t, v) __same_type((__force t)0, v) 121 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L)) 122 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL)) 123 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL)) 124 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a 125 #define __SC_CAST(t, a) (__force t) a 126 #define __SC_ARGS(t, a) a 127 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long)) 128 129 #ifdef CONFIG_FTRACE_SYSCALLS 130 #define __SC_STR_ADECL(t, a) #a 131 #define __SC_STR_TDECL(t, a) #t 132 133 extern struct trace_event_class event_class_syscall_enter; 134 extern struct trace_event_class event_class_syscall_exit; 135 extern struct trace_event_functions enter_syscall_print_funcs; 136 extern struct trace_event_functions exit_syscall_print_funcs; 137 138 #define SYSCALL_TRACE_ENTER_EVENT(sname) \ 139 static struct syscall_metadata __syscall_meta_##sname; \ 140 static struct trace_event_call __used \ 141 event_enter_##sname = { \ 142 .class = &event_class_syscall_enter, \ 143 { \ 144 .name = "sys_enter"#sname, \ 145 }, \ 146 .event.funcs = &enter_syscall_print_funcs, \ 147 .data = (void *)&__syscall_meta_##sname,\ 148 .flags = TRACE_EVENT_FL_CAP_ANY, \ 149 }; \ 150 static struct trace_event_call __used \ 151 __section("_ftrace_events") \ 152 *__event_enter_##sname = &event_enter_##sname; 153 154 #define SYSCALL_TRACE_EXIT_EVENT(sname) \ 155 static struct syscall_metadata __syscall_meta_##sname; \ 156 static struct trace_event_call __used \ 157 event_exit_##sname = { \ 158 .class = &event_class_syscall_exit, \ 159 { \ 160 .name = "sys_exit"#sname, \ 161 }, \ 162 .event.funcs = &exit_syscall_print_funcs, \ 163 .data = (void *)&__syscall_meta_##sname,\ 164 .flags = TRACE_EVENT_FL_CAP_ANY, \ 165 }; \ 166 static struct trace_event_call __used \ 167 __section("_ftrace_events") \ 168 *__event_exit_##sname = &event_exit_##sname; 169 170 #define SYSCALL_METADATA(sname, nb, ...) \ 171 static const char *types_##sname[] = { \ 172 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \ 173 }; \ 174 static const char *args_##sname[] = { \ 175 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \ 176 }; \ 177 SYSCALL_TRACE_ENTER_EVENT(sname); \ 178 SYSCALL_TRACE_EXIT_EVENT(sname); \ 179 static struct syscall_metadata __used \ 180 __syscall_meta_##sname = { \ 181 .name = "sys"#sname, \ 182 .syscall_nr = -1, /* Filled in at boot */ \ 183 .nb_args = nb, \ 184 .types = nb ? types_##sname : NULL, \ 185 .args = nb ? args_##sname : NULL, \ 186 .enter_event = &event_enter_##sname, \ 187 .exit_event = &event_exit_##sname, \ 188 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \ 189 }; \ 190 static struct syscall_metadata __used \ 191 __section("__syscalls_metadata") \ 192 *__p_syscall_meta_##sname = &__syscall_meta_##sname; 193 194 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 195 { 196 return tp_event->class == &event_class_syscall_enter || 197 tp_event->class == &event_class_syscall_exit; 198 } 199 200 #else 201 #define SYSCALL_METADATA(sname, nb, ...) 202 203 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 204 { 205 return 0; 206 } 207 #endif 208 209 #ifndef SYSCALL_DEFINE0 210 #define SYSCALL_DEFINE0(sname) \ 211 SYSCALL_METADATA(_##sname, 0); \ 212 asmlinkage long sys_##sname(void); \ 213 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \ 214 asmlinkage long sys_##sname(void) 215 #endif /* SYSCALL_DEFINE0 */ 216 217 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__) 218 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__) 219 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) 220 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__) 221 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) 222 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) 223 224 #define SYSCALL_DEFINE_MAXARGS 6 225 226 #define SYSCALL_DEFINEx(x, sname, ...) \ 227 SYSCALL_METADATA(sname, x, __VA_ARGS__) \ 228 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) 229 230 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__) 231 232 /* 233 * The asmlinkage stub is aliased to a function named __se_sys_*() which 234 * sign-extends 32-bit ints to longs whenever needed. The actual work is 235 * done within __do_sys_*(). 236 */ 237 #ifndef __SYSCALL_DEFINEx 238 #define __SYSCALL_DEFINEx(x, name, ...) \ 239 __diag_push(); \ 240 __diag_ignore(GCC, 8, "-Wattribute-alias", \ 241 "Type aliasing is used to sanitize syscall arguments");\ 242 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ 243 __attribute__((alias(__stringify(__se_sys##name)))); \ 244 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \ 245 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ 246 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ 247 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ 248 { \ 249 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\ 250 __MAP(x,__SC_TEST,__VA_ARGS__); \ 251 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \ 252 return ret; \ 253 } \ 254 __diag_pop(); \ 255 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) 256 #endif /* __SYSCALL_DEFINEx */ 257 258 /* For split 64-bit arguments on 32-bit architectures */ 259 #ifdef __LITTLE_ENDIAN 260 #define SC_ARG64(name) u32, name##_lo, u32, name##_hi 261 #else 262 #define SC_ARG64(name) u32, name##_hi, u32, name##_lo 263 #endif 264 #define SC_VAL64(type, name) ((type) name##_hi << 32 | name##_lo) 265 266 #ifdef CONFIG_COMPAT 267 #define SYSCALL32_DEFINE0 COMPAT_SYSCALL_DEFINE0 268 #define SYSCALL32_DEFINE1 COMPAT_SYSCALL_DEFINE1 269 #define SYSCALL32_DEFINE2 COMPAT_SYSCALL_DEFINE2 270 #define SYSCALL32_DEFINE3 COMPAT_SYSCALL_DEFINE3 271 #define SYSCALL32_DEFINE4 COMPAT_SYSCALL_DEFINE4 272 #define SYSCALL32_DEFINE5 COMPAT_SYSCALL_DEFINE5 273 #define SYSCALL32_DEFINE6 COMPAT_SYSCALL_DEFINE6 274 #else 275 #define SYSCALL32_DEFINE0 SYSCALL_DEFINE0 276 #define SYSCALL32_DEFINE1 SYSCALL_DEFINE1 277 #define SYSCALL32_DEFINE2 SYSCALL_DEFINE2 278 #define SYSCALL32_DEFINE3 SYSCALL_DEFINE3 279 #define SYSCALL32_DEFINE4 SYSCALL_DEFINE4 280 #define SYSCALL32_DEFINE5 SYSCALL_DEFINE5 281 #define SYSCALL32_DEFINE6 SYSCALL_DEFINE6 282 #endif 283 284 /* 285 * Called before coming back to user-mode. Returning to user-mode with an 286 * address limit different than USER_DS can allow to overwrite kernel memory. 287 */ 288 static inline void addr_limit_user_check(void) 289 { 290 #ifdef TIF_FSCHECK 291 if (!test_thread_flag(TIF_FSCHECK)) 292 return; 293 #endif 294 295 #ifdef TIF_FSCHECK 296 clear_thread_flag(TIF_FSCHECK); 297 #endif 298 } 299 300 /* 301 * These syscall function prototypes are kept in the same order as 302 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below, 303 * followed by deprecated or obsolete system calls. 304 * 305 * Please note that these prototypes here are only provided for information 306 * purposes, for static analysis, and for linking from the syscall table. 307 * These functions should not be called elsewhere from kernel code. 308 * 309 * As the syscall calling convention may be different from the default 310 * for architectures overriding the syscall calling convention, do not 311 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 312 */ 313 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 314 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx); 315 asmlinkage long sys_io_destroy(aio_context_t ctx); 316 asmlinkage long sys_io_submit(aio_context_t, long, 317 struct iocb __user * __user *); 318 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb, 319 struct io_event __user *result); 320 asmlinkage long sys_io_getevents(aio_context_t ctx_id, 321 long min_nr, 322 long nr, 323 struct io_event __user *events, 324 struct __kernel_timespec __user *timeout); 325 asmlinkage long sys_io_getevents_time32(__u32 ctx_id, 326 __s32 min_nr, 327 __s32 nr, 328 struct io_event __user *events, 329 struct old_timespec32 __user *timeout); 330 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id, 331 long min_nr, 332 long nr, 333 struct io_event __user *events, 334 struct __kernel_timespec __user *timeout, 335 const struct __aio_sigset *sig); 336 asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id, 337 long min_nr, 338 long nr, 339 struct io_event __user *events, 340 struct old_timespec32 __user *timeout, 341 const struct __aio_sigset *sig); 342 asmlinkage long sys_io_uring_setup(u32 entries, 343 struct io_uring_params __user *p); 344 asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit, 345 u32 min_complete, u32 flags, 346 const void __user *argp, size_t argsz); 347 asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op, 348 void __user *arg, unsigned int nr_args); 349 350 /* fs/xattr.c */ 351 asmlinkage long sys_setxattr(const char __user *path, const char __user *name, 352 const void __user *value, size_t size, int flags); 353 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name, 354 const void __user *value, size_t size, int flags); 355 asmlinkage long sys_fsetxattr(int fd, const char __user *name, 356 const void __user *value, size_t size, int flags); 357 asmlinkage long sys_getxattr(const char __user *path, const char __user *name, 358 void __user *value, size_t size); 359 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name, 360 void __user *value, size_t size); 361 asmlinkage long sys_fgetxattr(int fd, const char __user *name, 362 void __user *value, size_t size); 363 asmlinkage long sys_listxattr(const char __user *path, char __user *list, 364 size_t size); 365 asmlinkage long sys_llistxattr(const char __user *path, char __user *list, 366 size_t size); 367 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size); 368 asmlinkage long sys_removexattr(const char __user *path, 369 const char __user *name); 370 asmlinkage long sys_lremovexattr(const char __user *path, 371 const char __user *name); 372 asmlinkage long sys_fremovexattr(int fd, const char __user *name); 373 374 /* fs/dcache.c */ 375 asmlinkage long sys_getcwd(char __user *buf, unsigned long size); 376 377 /* fs/cookies.c */ 378 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len); 379 380 /* fs/eventfd.c */ 381 asmlinkage long sys_eventfd2(unsigned int count, int flags); 382 383 /* fs/eventpoll.c */ 384 asmlinkage long sys_epoll_create1(int flags); 385 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, 386 struct epoll_event __user *event); 387 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events, 388 int maxevents, int timeout, 389 const sigset_t __user *sigmask, 390 size_t sigsetsize); 391 asmlinkage long sys_epoll_pwait2(int epfd, struct epoll_event __user *events, 392 int maxevents, 393 const struct __kernel_timespec __user *timeout, 394 const sigset_t __user *sigmask, 395 size_t sigsetsize); 396 397 /* fs/fcntl.c */ 398 asmlinkage long sys_dup(unsigned int fildes); 399 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags); 400 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); 401 #if BITS_PER_LONG == 32 402 asmlinkage long sys_fcntl64(unsigned int fd, 403 unsigned int cmd, unsigned long arg); 404 #endif 405 406 /* fs/inotify_user.c */ 407 asmlinkage long sys_inotify_init1(int flags); 408 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, 409 u32 mask); 410 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd); 411 412 /* fs/ioctl.c */ 413 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, 414 unsigned long arg); 415 416 /* fs/ioprio.c */ 417 asmlinkage long sys_ioprio_set(int which, int who, int ioprio); 418 asmlinkage long sys_ioprio_get(int which, int who); 419 420 /* fs/locks.c */ 421 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd); 422 423 /* fs/namei.c */ 424 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode, 425 unsigned dev); 426 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode); 427 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag); 428 asmlinkage long sys_symlinkat(const char __user * oldname, 429 int newdfd, const char __user * newname); 430 asmlinkage long sys_linkat(int olddfd, const char __user *oldname, 431 int newdfd, const char __user *newname, int flags); 432 asmlinkage long sys_renameat(int olddfd, const char __user * oldname, 433 int newdfd, const char __user * newname); 434 435 /* fs/namespace.c */ 436 asmlinkage long sys_umount(char __user *name, int flags); 437 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name, 438 char __user *type, unsigned long flags, 439 void __user *data); 440 asmlinkage long sys_pivot_root(const char __user *new_root, 441 const char __user *put_old); 442 443 /* fs/nfsctl.c */ 444 445 /* fs/open.c */ 446 asmlinkage long sys_statfs(const char __user * path, 447 struct statfs __user *buf); 448 asmlinkage long sys_statfs64(const char __user *path, size_t sz, 449 struct statfs64 __user *buf); 450 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf); 451 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz, 452 struct statfs64 __user *buf); 453 asmlinkage long sys_truncate(const char __user *path, long length); 454 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length); 455 #if BITS_PER_LONG == 32 456 asmlinkage long sys_truncate64(const char __user *path, loff_t length); 457 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length); 458 #endif 459 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len); 460 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode); 461 asmlinkage long sys_faccessat2(int dfd, const char __user *filename, int mode, 462 int flags); 463 asmlinkage long sys_chdir(const char __user *filename); 464 asmlinkage long sys_fchdir(unsigned int fd); 465 asmlinkage long sys_chroot(const char __user *filename); 466 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode); 467 asmlinkage long sys_fchmodat(int dfd, const char __user * filename, 468 umode_t mode); 469 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user, 470 gid_t group, int flag); 471 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group); 472 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags, 473 umode_t mode); 474 asmlinkage long sys_openat2(int dfd, const char __user *filename, 475 struct open_how *how, size_t size); 476 asmlinkage long sys_close(unsigned int fd); 477 asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd, 478 unsigned int flags); 479 asmlinkage long sys_vhangup(void); 480 481 /* fs/pipe.c */ 482 asmlinkage long sys_pipe2(int __user *fildes, int flags); 483 484 /* fs/quota.c */ 485 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special, 486 qid_t id, void __user *addr); 487 asmlinkage long sys_quotactl_fd(unsigned int fd, unsigned int cmd, qid_t id, 488 void __user *addr); 489 490 /* fs/readdir.c */ 491 asmlinkage long sys_getdents64(unsigned int fd, 492 struct linux_dirent64 __user *dirent, 493 unsigned int count); 494 495 /* fs/read_write.c */ 496 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high, 497 unsigned long offset_low, loff_t __user *result, 498 unsigned int whence); 499 asmlinkage long sys_lseek(unsigned int fd, off_t offset, 500 unsigned int whence); 501 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count); 502 asmlinkage long sys_write(unsigned int fd, const char __user *buf, 503 size_t count); 504 asmlinkage long sys_readv(unsigned long fd, 505 const struct iovec __user *vec, 506 unsigned long vlen); 507 asmlinkage long sys_writev(unsigned long fd, 508 const struct iovec __user *vec, 509 unsigned long vlen); 510 asmlinkage long sys_pread64(unsigned int fd, char __user *buf, 511 size_t count, loff_t pos); 512 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf, 513 size_t count, loff_t pos); 514 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec, 515 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 516 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec, 517 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 518 519 /* fs/sendfile.c */ 520 asmlinkage long sys_sendfile64(int out_fd, int in_fd, 521 loff_t __user *offset, size_t count); 522 523 /* fs/select.c */ 524 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *, 525 fd_set __user *, struct __kernel_timespec __user *, 526 void __user *); 527 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *, 528 fd_set __user *, struct old_timespec32 __user *, 529 void __user *); 530 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int, 531 struct __kernel_timespec __user *, const sigset_t __user *, 532 size_t); 533 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int, 534 struct old_timespec32 __user *, const sigset_t __user *, 535 size_t); 536 537 /* fs/signalfd.c */ 538 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags); 539 540 /* fs/splice.c */ 541 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov, 542 unsigned long nr_segs, unsigned int flags); 543 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in, 544 int fd_out, loff_t __user *off_out, 545 size_t len, unsigned int flags); 546 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags); 547 548 /* fs/stat.c */ 549 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf, 550 int bufsiz); 551 asmlinkage long sys_newfstatat(int dfd, const char __user *filename, 552 struct stat __user *statbuf, int flag); 553 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf); 554 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 555 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf); 556 asmlinkage long sys_fstatat64(int dfd, const char __user *filename, 557 struct stat64 __user *statbuf, int flag); 558 #endif 559 560 /* fs/sync.c */ 561 asmlinkage long sys_sync(void); 562 asmlinkage long sys_fsync(unsigned int fd); 563 asmlinkage long sys_fdatasync(unsigned int fd); 564 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags, 565 loff_t offset, loff_t nbytes); 566 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 567 unsigned int flags); 568 569 /* fs/timerfd.c */ 570 asmlinkage long sys_timerfd_create(int clockid, int flags); 571 asmlinkage long sys_timerfd_settime(int ufd, int flags, 572 const struct __kernel_itimerspec __user *utmr, 573 struct __kernel_itimerspec __user *otmr); 574 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr); 575 asmlinkage long sys_timerfd_gettime32(int ufd, 576 struct old_itimerspec32 __user *otmr); 577 asmlinkage long sys_timerfd_settime32(int ufd, int flags, 578 const struct old_itimerspec32 __user *utmr, 579 struct old_itimerspec32 __user *otmr); 580 581 /* fs/utimes.c */ 582 asmlinkage long sys_utimensat(int dfd, const char __user *filename, 583 struct __kernel_timespec __user *utimes, 584 int flags); 585 asmlinkage long sys_utimensat_time32(unsigned int dfd, 586 const char __user *filename, 587 struct old_timespec32 __user *t, int flags); 588 589 /* kernel/acct.c */ 590 asmlinkage long sys_acct(const char __user *name); 591 592 /* kernel/capability.c */ 593 asmlinkage long sys_capget(cap_user_header_t header, 594 cap_user_data_t dataptr); 595 asmlinkage long sys_capset(cap_user_header_t header, 596 const cap_user_data_t data); 597 598 /* kernel/exec_domain.c */ 599 asmlinkage long sys_personality(unsigned int personality); 600 601 /* kernel/exit.c */ 602 asmlinkage long sys_exit(int error_code); 603 asmlinkage long sys_exit_group(int error_code); 604 asmlinkage long sys_waitid(int which, pid_t pid, 605 struct siginfo __user *infop, 606 int options, struct rusage __user *ru); 607 608 /* kernel/fork.c */ 609 asmlinkage long sys_set_tid_address(int __user *tidptr); 610 asmlinkage long sys_unshare(unsigned long unshare_flags); 611 612 /* kernel/futex/syscalls.c */ 613 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val, 614 const struct __kernel_timespec __user *utime, 615 u32 __user *uaddr2, u32 val3); 616 asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val, 617 const struct old_timespec32 __user *utime, 618 u32 __user *uaddr2, u32 val3); 619 asmlinkage long sys_get_robust_list(int pid, 620 struct robust_list_head __user * __user *head_ptr, 621 size_t __user *len_ptr); 622 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, 623 size_t len); 624 625 asmlinkage long sys_futex_waitv(struct futex_waitv *waiters, 626 unsigned int nr_futexes, unsigned int flags, 627 struct __kernel_timespec __user *timeout, clockid_t clockid); 628 629 /* kernel/hrtimer.c */ 630 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp, 631 struct __kernel_timespec __user *rmtp); 632 asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp, 633 struct old_timespec32 __user *rmtp); 634 635 /* kernel/itimer.c */ 636 asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value); 637 asmlinkage long sys_setitimer(int which, 638 struct __kernel_old_itimerval __user *value, 639 struct __kernel_old_itimerval __user *ovalue); 640 641 /* kernel/kexec.c */ 642 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments, 643 struct kexec_segment __user *segments, 644 unsigned long flags); 645 646 /* kernel/module.c */ 647 asmlinkage long sys_init_module(void __user *umod, unsigned long len, 648 const char __user *uargs); 649 asmlinkage long sys_delete_module(const char __user *name_user, 650 unsigned int flags); 651 652 /* kernel/posix-timers.c */ 653 asmlinkage long sys_timer_create(clockid_t which_clock, 654 struct sigevent __user *timer_event_spec, 655 timer_t __user * created_timer_id); 656 asmlinkage long sys_timer_gettime(timer_t timer_id, 657 struct __kernel_itimerspec __user *setting); 658 asmlinkage long sys_timer_getoverrun(timer_t timer_id); 659 asmlinkage long sys_timer_settime(timer_t timer_id, int flags, 660 const struct __kernel_itimerspec __user *new_setting, 661 struct __kernel_itimerspec __user *old_setting); 662 asmlinkage long sys_timer_delete(timer_t timer_id); 663 asmlinkage long sys_clock_settime(clockid_t which_clock, 664 const struct __kernel_timespec __user *tp); 665 asmlinkage long sys_clock_gettime(clockid_t which_clock, 666 struct __kernel_timespec __user *tp); 667 asmlinkage long sys_clock_getres(clockid_t which_clock, 668 struct __kernel_timespec __user *tp); 669 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags, 670 const struct __kernel_timespec __user *rqtp, 671 struct __kernel_timespec __user *rmtp); 672 asmlinkage long sys_timer_gettime32(timer_t timer_id, 673 struct old_itimerspec32 __user *setting); 674 asmlinkage long sys_timer_settime32(timer_t timer_id, int flags, 675 struct old_itimerspec32 __user *new, 676 struct old_itimerspec32 __user *old); 677 asmlinkage long sys_clock_settime32(clockid_t which_clock, 678 struct old_timespec32 __user *tp); 679 asmlinkage long sys_clock_gettime32(clockid_t which_clock, 680 struct old_timespec32 __user *tp); 681 asmlinkage long sys_clock_getres_time32(clockid_t which_clock, 682 struct old_timespec32 __user *tp); 683 asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags, 684 struct old_timespec32 __user *rqtp, 685 struct old_timespec32 __user *rmtp); 686 687 /* kernel/printk.c */ 688 asmlinkage long sys_syslog(int type, char __user *buf, int len); 689 690 /* kernel/ptrace.c */ 691 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, 692 unsigned long data); 693 /* kernel/sched/core.c */ 694 695 asmlinkage long sys_sched_setparam(pid_t pid, 696 struct sched_param __user *param); 697 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy, 698 struct sched_param __user *param); 699 asmlinkage long sys_sched_getscheduler(pid_t pid); 700 asmlinkage long sys_sched_getparam(pid_t pid, 701 struct sched_param __user *param); 702 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len, 703 unsigned long __user *user_mask_ptr); 704 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len, 705 unsigned long __user *user_mask_ptr); 706 asmlinkage long sys_sched_yield(void); 707 asmlinkage long sys_sched_get_priority_max(int policy); 708 asmlinkage long sys_sched_get_priority_min(int policy); 709 asmlinkage long sys_sched_rr_get_interval(pid_t pid, 710 struct __kernel_timespec __user *interval); 711 asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid, 712 struct old_timespec32 __user *interval); 713 714 /* kernel/signal.c */ 715 asmlinkage long sys_restart_syscall(void); 716 asmlinkage long sys_kill(pid_t pid, int sig); 717 asmlinkage long sys_tkill(pid_t pid, int sig); 718 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig); 719 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss, 720 struct sigaltstack __user *uoss); 721 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize); 722 #ifndef CONFIG_ODD_RT_SIGACTION 723 asmlinkage long sys_rt_sigaction(int, 724 const struct sigaction __user *, 725 struct sigaction __user *, 726 size_t); 727 #endif 728 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set, 729 sigset_t __user *oset, size_t sigsetsize); 730 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize); 731 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese, 732 siginfo_t __user *uinfo, 733 const struct __kernel_timespec __user *uts, 734 size_t sigsetsize); 735 asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese, 736 siginfo_t __user *uinfo, 737 const struct old_timespec32 __user *uts, 738 size_t sigsetsize); 739 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo); 740 741 /* kernel/sys.c */ 742 asmlinkage long sys_setpriority(int which, int who, int niceval); 743 asmlinkage long sys_getpriority(int which, int who); 744 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, 745 void __user *arg); 746 asmlinkage long sys_setregid(gid_t rgid, gid_t egid); 747 asmlinkage long sys_setgid(gid_t gid); 748 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid); 749 asmlinkage long sys_setuid(uid_t uid); 750 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid); 751 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid); 752 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid); 753 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid); 754 asmlinkage long sys_setfsuid(uid_t uid); 755 asmlinkage long sys_setfsgid(gid_t gid); 756 asmlinkage long sys_times(struct tms __user *tbuf); 757 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid); 758 asmlinkage long sys_getpgid(pid_t pid); 759 asmlinkage long sys_getsid(pid_t pid); 760 asmlinkage long sys_setsid(void); 761 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist); 762 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist); 763 asmlinkage long sys_newuname(struct new_utsname __user *name); 764 asmlinkage long sys_sethostname(char __user *name, int len); 765 asmlinkage long sys_setdomainname(char __user *name, int len); 766 asmlinkage long sys_getrlimit(unsigned int resource, 767 struct rlimit __user *rlim); 768 asmlinkage long sys_setrlimit(unsigned int resource, 769 struct rlimit __user *rlim); 770 asmlinkage long sys_getrusage(int who, struct rusage __user *ru); 771 asmlinkage long sys_umask(int mask); 772 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, 773 unsigned long arg4, unsigned long arg5); 774 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache); 775 776 /* kernel/time.c */ 777 asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv, 778 struct timezone __user *tz); 779 asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv, 780 struct timezone __user *tz); 781 asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p); 782 asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p); 783 784 /* kernel/sys.c */ 785 asmlinkage long sys_getpid(void); 786 asmlinkage long sys_getppid(void); 787 asmlinkage long sys_getuid(void); 788 asmlinkage long sys_geteuid(void); 789 asmlinkage long sys_getgid(void); 790 asmlinkage long sys_getegid(void); 791 asmlinkage long sys_gettid(void); 792 asmlinkage long sys_sysinfo(struct sysinfo __user *info); 793 794 /* ipc/mqueue.c */ 795 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr); 796 asmlinkage long sys_mq_unlink(const char __user *name); 797 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); 798 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); 799 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification); 800 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat); 801 asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes, 802 char __user *u_msg_ptr, 803 unsigned int msg_len, unsigned int __user *u_msg_prio, 804 const struct old_timespec32 __user *u_abs_timeout); 805 asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes, 806 const char __user *u_msg_ptr, 807 unsigned int msg_len, unsigned int msg_prio, 808 const struct old_timespec32 __user *u_abs_timeout); 809 810 /* ipc/msg.c */ 811 asmlinkage long sys_msgget(key_t key, int msgflg); 812 asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 813 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 814 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp, 815 size_t msgsz, long msgtyp, int msgflg); 816 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp, 817 size_t msgsz, int msgflg); 818 819 /* ipc/sem.c */ 820 asmlinkage long sys_semget(key_t key, int nsems, int semflg); 821 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg); 822 asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg); 823 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops, 824 unsigned nsops, 825 const struct __kernel_timespec __user *timeout); 826 asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops, 827 unsigned nsops, 828 const struct old_timespec32 __user *timeout); 829 asmlinkage long sys_semop(int semid, struct sembuf __user *sops, 830 unsigned nsops); 831 832 /* ipc/shm.c */ 833 asmlinkage long sys_shmget(key_t key, size_t size, int flag); 834 asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 835 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 836 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg); 837 asmlinkage long sys_shmdt(char __user *shmaddr); 838 839 /* net/socket.c */ 840 asmlinkage long sys_socket(int, int, int); 841 asmlinkage long sys_socketpair(int, int, int, int __user *); 842 asmlinkage long sys_bind(int, struct sockaddr __user *, int); 843 asmlinkage long sys_listen(int, int); 844 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *); 845 asmlinkage long sys_connect(int, struct sockaddr __user *, int); 846 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *); 847 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *); 848 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned, 849 struct sockaddr __user *, int); 850 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned, 851 struct sockaddr __user *, int __user *); 852 asmlinkage long sys_setsockopt(int fd, int level, int optname, 853 char __user *optval, int optlen); 854 asmlinkage long sys_getsockopt(int fd, int level, int optname, 855 char __user *optval, int __user *optlen); 856 asmlinkage long sys_shutdown(int, int); 857 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 858 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 859 860 /* mm/filemap.c */ 861 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count); 862 863 /* mm/nommu.c, also with MMU */ 864 asmlinkage long sys_brk(unsigned long brk); 865 asmlinkage long sys_munmap(unsigned long addr, size_t len); 866 asmlinkage long sys_mremap(unsigned long addr, 867 unsigned long old_len, unsigned long new_len, 868 unsigned long flags, unsigned long new_addr); 869 870 /* security/keys/keyctl.c */ 871 asmlinkage long sys_add_key(const char __user *_type, 872 const char __user *_description, 873 const void __user *_payload, 874 size_t plen, 875 key_serial_t destringid); 876 asmlinkage long sys_request_key(const char __user *_type, 877 const char __user *_description, 878 const char __user *_callout_info, 879 key_serial_t destringid); 880 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3, 881 unsigned long arg4, unsigned long arg5); 882 883 /* arch/example/kernel/sys_example.c */ 884 #ifdef CONFIG_CLONE_BACKWARDS 885 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long, 886 int __user *); 887 #else 888 #ifdef CONFIG_CLONE_BACKWARDS3 889 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *, 890 int __user *, unsigned long); 891 #else 892 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, 893 int __user *, unsigned long); 894 #endif 895 #endif 896 897 asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size); 898 899 asmlinkage long sys_execve(const char __user *filename, 900 const char __user *const __user *argv, 901 const char __user *const __user *envp); 902 903 /* mm/fadvise.c */ 904 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 905 906 /* mm/, CONFIG_MMU only */ 907 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags); 908 asmlinkage long sys_swapoff(const char __user *specialfile); 909 asmlinkage long sys_mprotect(unsigned long start, size_t len, 910 unsigned long prot); 911 asmlinkage long sys_msync(unsigned long start, size_t len, int flags); 912 asmlinkage long sys_mlock(unsigned long start, size_t len); 913 asmlinkage long sys_munlock(unsigned long start, size_t len); 914 asmlinkage long sys_mlockall(int flags); 915 asmlinkage long sys_munlockall(void); 916 asmlinkage long sys_mincore(unsigned long start, size_t len, 917 unsigned char __user * vec); 918 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior); 919 asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec, 920 size_t vlen, int behavior, unsigned int flags); 921 asmlinkage long sys_process_mrelease(int pidfd, unsigned int flags); 922 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, 923 unsigned long prot, unsigned long pgoff, 924 unsigned long flags); 925 asmlinkage long sys_mbind(unsigned long start, unsigned long len, 926 unsigned long mode, 927 const unsigned long __user *nmask, 928 unsigned long maxnode, 929 unsigned flags); 930 asmlinkage long sys_get_mempolicy(int __user *policy, 931 unsigned long __user *nmask, 932 unsigned long maxnode, 933 unsigned long addr, unsigned long flags); 934 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask, 935 unsigned long maxnode); 936 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode, 937 const unsigned long __user *from, 938 const unsigned long __user *to); 939 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages, 940 const void __user * __user *pages, 941 const int __user *nodes, 942 int __user *status, 943 int flags); 944 945 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, 946 siginfo_t __user *uinfo); 947 asmlinkage long sys_perf_event_open( 948 struct perf_event_attr __user *attr_uptr, 949 pid_t pid, int cpu, int group_fd, unsigned long flags); 950 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int); 951 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg, 952 unsigned int vlen, unsigned flags, 953 struct __kernel_timespec __user *timeout); 954 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg, 955 unsigned int vlen, unsigned flags, 956 struct old_timespec32 __user *timeout); 957 958 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr, 959 int options, struct rusage __user *ru); 960 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource, 961 const struct rlimit64 __user *new_rlim, 962 struct rlimit64 __user *old_rlim); 963 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags); 964 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags, 965 u64 mask, int fd, 966 const char __user *pathname); 967 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name, 968 struct file_handle __user *handle, 969 int __user *mnt_id, int flag); 970 asmlinkage long sys_open_by_handle_at(int mountdirfd, 971 struct file_handle __user *handle, 972 int flags); 973 asmlinkage long sys_clock_adjtime(clockid_t which_clock, 974 struct __kernel_timex __user *tx); 975 asmlinkage long sys_clock_adjtime32(clockid_t which_clock, 976 struct old_timex32 __user *tx); 977 asmlinkage long sys_syncfs(int fd); 978 asmlinkage long sys_setns(int fd, int nstype); 979 asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags); 980 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg, 981 unsigned int vlen, unsigned flags); 982 asmlinkage long sys_process_vm_readv(pid_t pid, 983 const struct iovec __user *lvec, 984 unsigned long liovcnt, 985 const struct iovec __user *rvec, 986 unsigned long riovcnt, 987 unsigned long flags); 988 asmlinkage long sys_process_vm_writev(pid_t pid, 989 const struct iovec __user *lvec, 990 unsigned long liovcnt, 991 const struct iovec __user *rvec, 992 unsigned long riovcnt, 993 unsigned long flags); 994 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type, 995 unsigned long idx1, unsigned long idx2); 996 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags); 997 asmlinkage long sys_sched_setattr(pid_t pid, 998 struct sched_attr __user *attr, 999 unsigned int flags); 1000 asmlinkage long sys_sched_getattr(pid_t pid, 1001 struct sched_attr __user *attr, 1002 unsigned int size, 1003 unsigned int flags); 1004 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname, 1005 int newdfd, const char __user *newname, 1006 unsigned int flags); 1007 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, 1008 void __user *uargs); 1009 asmlinkage long sys_getrandom(char __user *buf, size_t count, 1010 unsigned int flags); 1011 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags); 1012 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size); 1013 asmlinkage long sys_execveat(int dfd, const char __user *filename, 1014 const char __user *const __user *argv, 1015 const char __user *const __user *envp, int flags); 1016 asmlinkage long sys_userfaultfd(int flags); 1017 asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id); 1018 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags); 1019 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in, 1020 int fd_out, loff_t __user *off_out, 1021 size_t len, unsigned int flags); 1022 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec, 1023 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 1024 rwf_t flags); 1025 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec, 1026 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 1027 rwf_t flags); 1028 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len, 1029 unsigned long prot, int pkey); 1030 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val); 1031 asmlinkage long sys_pkey_free(int pkey); 1032 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags, 1033 unsigned mask, struct statx __user *buffer); 1034 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len, 1035 int flags, uint32_t sig); 1036 asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags); 1037 asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path, 1038 int to_dfd, const char __user *to_path, 1039 unsigned int ms_flags); 1040 asmlinkage long sys_mount_setattr(int dfd, const char __user *path, 1041 unsigned int flags, 1042 struct mount_attr __user *uattr, size_t usize); 1043 asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags); 1044 asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key, 1045 const void __user *value, int aux); 1046 asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags); 1047 asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags); 1048 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig, 1049 siginfo_t __user *info, 1050 unsigned int flags); 1051 asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags); 1052 asmlinkage long sys_landlock_create_ruleset(const struct landlock_ruleset_attr __user *attr, 1053 size_t size, __u32 flags); 1054 asmlinkage long sys_landlock_add_rule(int ruleset_fd, enum landlock_rule_type rule_type, 1055 const void __user *rule_attr, __u32 flags); 1056 asmlinkage long sys_landlock_restrict_self(int ruleset_fd, __u32 flags); 1057 asmlinkage long sys_memfd_secret(unsigned int flags); 1058 asmlinkage long sys_set_mempolicy_home_node(unsigned long start, unsigned long len, 1059 unsigned long home_node, 1060 unsigned long flags); 1061 1062 /* 1063 * Architecture-specific system calls 1064 */ 1065 1066 /* arch/x86/kernel/ioport.c */ 1067 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); 1068 1069 /* pciconfig: alpha, arm, arm64, ia64, sparc */ 1070 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn, 1071 unsigned long off, unsigned long len, 1072 void __user *buf); 1073 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn, 1074 unsigned long off, unsigned long len, 1075 void __user *buf); 1076 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn); 1077 1078 /* powerpc */ 1079 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc, 1080 __u32 __user *ustatus); 1081 asmlinkage long sys_spu_create(const char __user *name, 1082 unsigned int flags, umode_t mode, int fd); 1083 1084 1085 /* 1086 * Deprecated system calls which are still defined in 1087 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch 1088 */ 1089 1090 /* __ARCH_WANT_SYSCALL_NO_AT */ 1091 asmlinkage long sys_open(const char __user *filename, 1092 int flags, umode_t mode); 1093 asmlinkage long sys_link(const char __user *oldname, 1094 const char __user *newname); 1095 asmlinkage long sys_unlink(const char __user *pathname); 1096 asmlinkage long sys_mknod(const char __user *filename, umode_t mode, 1097 unsigned dev); 1098 asmlinkage long sys_chmod(const char __user *filename, umode_t mode); 1099 asmlinkage long sys_chown(const char __user *filename, 1100 uid_t user, gid_t group); 1101 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode); 1102 asmlinkage long sys_rmdir(const char __user *pathname); 1103 asmlinkage long sys_lchown(const char __user *filename, 1104 uid_t user, gid_t group); 1105 asmlinkage long sys_access(const char __user *filename, int mode); 1106 asmlinkage long sys_rename(const char __user *oldname, 1107 const char __user *newname); 1108 asmlinkage long sys_symlink(const char __user *old, const char __user *new); 1109 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 1110 asmlinkage long sys_stat64(const char __user *filename, 1111 struct stat64 __user *statbuf); 1112 asmlinkage long sys_lstat64(const char __user *filename, 1113 struct stat64 __user *statbuf); 1114 #endif 1115 1116 /* __ARCH_WANT_SYSCALL_NO_FLAGS */ 1117 asmlinkage long sys_pipe(int __user *fildes); 1118 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd); 1119 asmlinkage long sys_epoll_create(int size); 1120 asmlinkage long sys_inotify_init(void); 1121 asmlinkage long sys_eventfd(unsigned int count); 1122 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask); 1123 1124 /* __ARCH_WANT_SYSCALL_OFF_T */ 1125 asmlinkage long sys_sendfile(int out_fd, int in_fd, 1126 off_t __user *offset, size_t count); 1127 asmlinkage long sys_newstat(const char __user *filename, 1128 struct stat __user *statbuf); 1129 asmlinkage long sys_newlstat(const char __user *filename, 1130 struct stat __user *statbuf); 1131 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice); 1132 1133 /* __ARCH_WANT_SYSCALL_DEPRECATED */ 1134 asmlinkage long sys_alarm(unsigned int seconds); 1135 asmlinkage long sys_getpgrp(void); 1136 asmlinkage long sys_pause(void); 1137 asmlinkage long sys_time(__kernel_old_time_t __user *tloc); 1138 asmlinkage long sys_time32(old_time32_t __user *tloc); 1139 #ifdef __ARCH_WANT_SYS_UTIME 1140 asmlinkage long sys_utime(char __user *filename, 1141 struct utimbuf __user *times); 1142 asmlinkage long sys_utimes(char __user *filename, 1143 struct __kernel_old_timeval __user *utimes); 1144 asmlinkage long sys_futimesat(int dfd, const char __user *filename, 1145 struct __kernel_old_timeval __user *utimes); 1146 #endif 1147 asmlinkage long sys_futimesat_time32(unsigned int dfd, 1148 const char __user *filename, 1149 struct old_timeval32 __user *t); 1150 asmlinkage long sys_utime32(const char __user *filename, 1151 struct old_utimbuf32 __user *t); 1152 asmlinkage long sys_utimes_time32(const char __user *filename, 1153 struct old_timeval32 __user *t); 1154 asmlinkage long sys_creat(const char __user *pathname, umode_t mode); 1155 asmlinkage long sys_getdents(unsigned int fd, 1156 struct linux_dirent __user *dirent, 1157 unsigned int count); 1158 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp, 1159 fd_set __user *exp, struct __kernel_old_timeval __user *tvp); 1160 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds, 1161 int timeout); 1162 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, 1163 int maxevents, int timeout); 1164 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf); 1165 asmlinkage long sys_vfork(void); 1166 asmlinkage long sys_recv(int, void __user *, size_t, unsigned); 1167 asmlinkage long sys_send(int, void __user *, size_t, unsigned); 1168 asmlinkage long sys_oldumount(char __user *name); 1169 asmlinkage long sys_uselib(const char __user *library); 1170 asmlinkage long sys_sysfs(int option, 1171 unsigned long arg1, unsigned long arg2); 1172 asmlinkage long sys_fork(void); 1173 1174 /* obsolete: kernel/time/time.c */ 1175 asmlinkage long sys_stime(__kernel_old_time_t __user *tptr); 1176 asmlinkage long sys_stime32(old_time32_t __user *tptr); 1177 1178 /* obsolete: kernel/signal.c */ 1179 asmlinkage long sys_sigpending(old_sigset_t __user *uset); 1180 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set, 1181 old_sigset_t __user *oset); 1182 #ifdef CONFIG_OLD_SIGSUSPEND 1183 asmlinkage long sys_sigsuspend(old_sigset_t mask); 1184 #endif 1185 1186 #ifdef CONFIG_OLD_SIGSUSPEND3 1187 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask); 1188 #endif 1189 1190 #ifdef CONFIG_OLD_SIGACTION 1191 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *, 1192 struct old_sigaction __user *); 1193 #endif 1194 asmlinkage long sys_sgetmask(void); 1195 asmlinkage long sys_ssetmask(int newmask); 1196 asmlinkage long sys_signal(int sig, __sighandler_t handler); 1197 1198 /* obsolete: kernel/sched/core.c */ 1199 asmlinkage long sys_nice(int increment); 1200 1201 /* obsolete: kernel/kexec_file.c */ 1202 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd, 1203 unsigned long cmdline_len, 1204 const char __user *cmdline_ptr, 1205 unsigned long flags); 1206 1207 /* obsolete: kernel/exit.c */ 1208 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options); 1209 1210 /* obsolete: kernel/uid16.c */ 1211 #ifdef CONFIG_HAVE_UID16 1212 asmlinkage long sys_chown16(const char __user *filename, 1213 old_uid_t user, old_gid_t group); 1214 asmlinkage long sys_lchown16(const char __user *filename, 1215 old_uid_t user, old_gid_t group); 1216 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group); 1217 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid); 1218 asmlinkage long sys_setgid16(old_gid_t gid); 1219 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid); 1220 asmlinkage long sys_setuid16(old_uid_t uid); 1221 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid); 1222 asmlinkage long sys_getresuid16(old_uid_t __user *ruid, 1223 old_uid_t __user *euid, old_uid_t __user *suid); 1224 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid); 1225 asmlinkage long sys_getresgid16(old_gid_t __user *rgid, 1226 old_gid_t __user *egid, old_gid_t __user *sgid); 1227 asmlinkage long sys_setfsuid16(old_uid_t uid); 1228 asmlinkage long sys_setfsgid16(old_gid_t gid); 1229 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist); 1230 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist); 1231 asmlinkage long sys_getuid16(void); 1232 asmlinkage long sys_geteuid16(void); 1233 asmlinkage long sys_getgid16(void); 1234 asmlinkage long sys_getegid16(void); 1235 #endif 1236 1237 /* obsolete: net/socket.c */ 1238 asmlinkage long sys_socketcall(int call, unsigned long __user *args); 1239 1240 /* obsolete: fs/stat.c */ 1241 asmlinkage long sys_stat(const char __user *filename, 1242 struct __old_kernel_stat __user *statbuf); 1243 asmlinkage long sys_lstat(const char __user *filename, 1244 struct __old_kernel_stat __user *statbuf); 1245 asmlinkage long sys_fstat(unsigned int fd, 1246 struct __old_kernel_stat __user *statbuf); 1247 asmlinkage long sys_readlink(const char __user *path, 1248 char __user *buf, int bufsiz); 1249 1250 /* obsolete: fs/select.c */ 1251 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg); 1252 1253 /* obsolete: fs/readdir.c */ 1254 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int); 1255 1256 /* obsolete: kernel/sys.c */ 1257 asmlinkage long sys_gethostname(char __user *name, int len); 1258 asmlinkage long sys_uname(struct old_utsname __user *); 1259 asmlinkage long sys_olduname(struct oldold_utsname __user *); 1260 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT 1261 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim); 1262 #endif 1263 1264 /* obsolete: ipc */ 1265 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second, 1266 unsigned long third, void __user *ptr, long fifth); 1267 1268 /* obsolete: mm/ */ 1269 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len, 1270 unsigned long prot, unsigned long flags, 1271 unsigned long fd, unsigned long pgoff); 1272 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg); 1273 1274 1275 /* 1276 * Not a real system call, but a placeholder for syscalls which are 1277 * not implemented -- see kernel/sys_ni.c 1278 */ 1279 asmlinkage long sys_ni_syscall(void); 1280 1281 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 1282 1283 1284 /* 1285 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly. 1286 * Instead, use one of the functions which work equivalently, such as 1287 * the ksys_xyzyyz() functions prototyped below. 1288 */ 1289 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count); 1290 int ksys_fchown(unsigned int fd, uid_t user, gid_t group); 1291 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count); 1292 void ksys_sync(void); 1293 int ksys_unshare(unsigned long unshare_flags); 1294 int ksys_setsid(void); 1295 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 1296 unsigned int flags); 1297 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count, 1298 loff_t pos); 1299 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf, 1300 size_t count, loff_t pos); 1301 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len); 1302 #ifdef CONFIG_ADVISE_SYSCALLS 1303 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 1304 #else 1305 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, 1306 int advice) 1307 { 1308 return -EINVAL; 1309 } 1310 #endif 1311 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len, 1312 unsigned long prot, unsigned long flags, 1313 unsigned long fd, unsigned long pgoff); 1314 ssize_t ksys_readahead(int fd, loff_t offset, size_t count); 1315 int ksys_ipc(unsigned int call, int first, unsigned long second, 1316 unsigned long third, void __user * ptr, long fifth); 1317 int compat_ksys_ipc(u32 call, int first, int second, 1318 u32 third, u32 ptr, u32 fifth); 1319 1320 /* 1321 * The following kernel syscall equivalents are just wrappers to fs-internal 1322 * functions. Therefore, provide stubs to be inlined at the callsites. 1323 */ 1324 extern int do_fchownat(int dfd, const char __user *filename, uid_t user, 1325 gid_t group, int flag); 1326 1327 static inline long ksys_chown(const char __user *filename, uid_t user, 1328 gid_t group) 1329 { 1330 return do_fchownat(AT_FDCWD, filename, user, group, 0); 1331 } 1332 1333 static inline long ksys_lchown(const char __user *filename, uid_t user, 1334 gid_t group) 1335 { 1336 return do_fchownat(AT_FDCWD, filename, user, group, 1337 AT_SYMLINK_NOFOLLOW); 1338 } 1339 1340 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small); 1341 1342 static inline long ksys_ftruncate(unsigned int fd, loff_t length) 1343 { 1344 return do_sys_ftruncate(fd, length, 1); 1345 } 1346 1347 extern long do_sys_truncate(const char __user *pathname, loff_t length); 1348 1349 static inline long ksys_truncate(const char __user *pathname, loff_t length) 1350 { 1351 return do_sys_truncate(pathname, length); 1352 } 1353 1354 static inline unsigned int ksys_personality(unsigned int personality) 1355 { 1356 unsigned int old = current->personality; 1357 1358 if (personality != 0xffffffff) 1359 set_personality(personality); 1360 1361 return old; 1362 } 1363 1364 /* for __ARCH_WANT_SYS_IPC */ 1365 long ksys_semtimedop(int semid, struct sembuf __user *tsops, 1366 unsigned int nsops, 1367 const struct __kernel_timespec __user *timeout); 1368 long ksys_semget(key_t key, int nsems, int semflg); 1369 long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg); 1370 long ksys_msgget(key_t key, int msgflg); 1371 long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 1372 long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz, 1373 long msgtyp, int msgflg); 1374 long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz, 1375 int msgflg); 1376 long ksys_shmget(key_t key, size_t size, int shmflg); 1377 long ksys_shmdt(char __user *shmaddr); 1378 long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 1379 long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems, 1380 unsigned int nsops, 1381 const struct old_timespec32 __user *timeout); 1382 long __do_semtimedop(int semid, struct sembuf *tsems, unsigned int nsops, 1383 const struct timespec64 *timeout, 1384 struct ipc_namespace *ns); 1385 1386 int __sys_getsockopt(int fd, int level, int optname, char __user *optval, 1387 int __user *optlen); 1388 int __sys_setsockopt(int fd, int level, int optname, char __user *optval, 1389 int optlen); 1390 #endif 1391