1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * syscalls.h - Linux syscall interfaces (non-arch-specific) 4 * 5 * Copyright (c) 2004 Randy Dunlap 6 * Copyright (c) 2004 Open Source Development Labs 7 */ 8 9 #ifndef _LINUX_SYSCALLS_H 10 #define _LINUX_SYSCALLS_H 11 12 struct __aio_sigset; 13 struct epoll_event; 14 struct iattr; 15 struct inode; 16 struct iocb; 17 struct io_event; 18 struct iovec; 19 struct __kernel_old_itimerval; 20 struct kexec_segment; 21 struct linux_dirent; 22 struct linux_dirent64; 23 struct list_head; 24 struct mmap_arg_struct; 25 struct msgbuf; 26 struct user_msghdr; 27 struct mmsghdr; 28 struct msqid_ds; 29 struct new_utsname; 30 struct nfsctl_arg; 31 struct __old_kernel_stat; 32 struct oldold_utsname; 33 struct old_utsname; 34 struct pollfd; 35 struct rlimit; 36 struct rlimit64; 37 struct rusage; 38 struct sched_param; 39 struct sched_attr; 40 struct sel_arg_struct; 41 struct semaphore; 42 struct sembuf; 43 struct shmid_ds; 44 struct sockaddr; 45 struct stat; 46 struct stat64; 47 struct statfs; 48 struct statfs64; 49 struct statx; 50 struct sysinfo; 51 struct timespec; 52 struct __kernel_old_timeval; 53 struct __kernel_timex; 54 struct timezone; 55 struct tms; 56 struct utimbuf; 57 struct mq_attr; 58 struct compat_stat; 59 struct old_timeval32; 60 struct robust_list_head; 61 struct getcpu_cache; 62 struct old_linux_dirent; 63 struct perf_event_attr; 64 struct file_handle; 65 struct sigaltstack; 66 struct rseq; 67 union bpf_attr; 68 struct io_uring_params; 69 struct clone_args; 70 struct open_how; 71 struct mount_attr; 72 struct landlock_ruleset_attr; 73 enum landlock_rule_type; 74 75 #include <linux/types.h> 76 #include <linux/aio_abi.h> 77 #include <linux/capability.h> 78 #include <linux/signal.h> 79 #include <linux/list.h> 80 #include <linux/bug.h> 81 #include <linux/sem.h> 82 #include <asm/siginfo.h> 83 #include <linux/unistd.h> 84 #include <linux/quota.h> 85 #include <linux/key.h> 86 #include <linux/personality.h> 87 #include <trace/syscall.h> 88 89 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 90 /* 91 * It may be useful for an architecture to override the definitions of the 92 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a 93 * different calling convention for syscalls. To allow for that, the prototypes 94 * for the sys_*() functions below will *not* be included if 95 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 96 */ 97 #include <asm/syscall_wrapper.h> 98 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 99 100 /* 101 * __MAP - apply a macro to syscall arguments 102 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to 103 * m(t1, a1), m(t2, a2), ..., m(tn, an) 104 * The first argument must be equal to the amount of type/name 105 * pairs given. Note that this list of pairs (i.e. the arguments 106 * of __MAP starting at the third one) is in the same format as 107 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n> 108 */ 109 #define __MAP0(m,...) 110 #define __MAP1(m,t,a,...) m(t,a) 111 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__) 112 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__) 113 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__) 114 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__) 115 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__) 116 #define __MAP(n,...) __MAP##n(__VA_ARGS__) 117 118 #define __SC_DECL(t, a) t a 119 #define __TYPE_AS(t, v) __same_type((__force t)0, v) 120 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L)) 121 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL)) 122 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL)) 123 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a 124 #define __SC_CAST(t, a) (__force t) a 125 #define __SC_TYPE(t, a) t 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 is_syscall_trace_event(struct trace_event_call * tp_event)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 is_syscall_trace_event(struct trace_event_call * tp_event)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_DEFINE1 COMPAT_SYSCALL_DEFINE1 268 #define SYSCALL32_DEFINE2 COMPAT_SYSCALL_DEFINE2 269 #define SYSCALL32_DEFINE3 COMPAT_SYSCALL_DEFINE3 270 #define SYSCALL32_DEFINE4 COMPAT_SYSCALL_DEFINE4 271 #define SYSCALL32_DEFINE5 COMPAT_SYSCALL_DEFINE5 272 #define SYSCALL32_DEFINE6 COMPAT_SYSCALL_DEFINE6 273 #else 274 #define SYSCALL32_DEFINE1 SYSCALL_DEFINE1 275 #define SYSCALL32_DEFINE2 SYSCALL_DEFINE2 276 #define SYSCALL32_DEFINE3 SYSCALL_DEFINE3 277 #define SYSCALL32_DEFINE4 SYSCALL_DEFINE4 278 #define SYSCALL32_DEFINE5 SYSCALL_DEFINE5 279 #define SYSCALL32_DEFINE6 SYSCALL_DEFINE6 280 #endif 281 282 /* 283 * Called before coming back to user-mode. Returning to user-mode with an 284 * address limit different than USER_DS can allow to overwrite kernel memory. 285 */ addr_limit_user_check(void)286 static inline void addr_limit_user_check(void) 287 { 288 #ifdef TIF_FSCHECK 289 if (!test_thread_flag(TIF_FSCHECK)) 290 return; 291 #endif 292 293 if (CHECK_DATA_CORRUPTION(uaccess_kernel(), 294 "Invalid address limit on user-mode return")) 295 force_sig(SIGKILL); 296 297 #ifdef TIF_FSCHECK 298 clear_thread_flag(TIF_FSCHECK); 299 #endif 300 } 301 302 /* 303 * These syscall function prototypes are kept in the same order as 304 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below, 305 * followed by deprecated or obsolete system calls. 306 * 307 * Please note that these prototypes here are only provided for information 308 * purposes, for static analysis, and for linking from the syscall table. 309 * These functions should not be called elsewhere from kernel code. 310 * 311 * As the syscall calling convention may be different from the default 312 * for architectures overriding the syscall calling convention, do not 313 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 314 */ 315 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 316 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx); 317 asmlinkage long sys_io_destroy(aio_context_t ctx); 318 asmlinkage long sys_io_submit(aio_context_t, long, 319 struct iocb __user * __user *); 320 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb, 321 struct io_event __user *result); 322 asmlinkage long sys_io_getevents(aio_context_t ctx_id, 323 long min_nr, 324 long nr, 325 struct io_event __user *events, 326 struct __kernel_timespec __user *timeout); 327 asmlinkage long sys_io_getevents_time32(__u32 ctx_id, 328 __s32 min_nr, 329 __s32 nr, 330 struct io_event __user *events, 331 struct old_timespec32 __user *timeout); 332 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id, 333 long min_nr, 334 long nr, 335 struct io_event __user *events, 336 struct __kernel_timespec __user *timeout, 337 const struct __aio_sigset *sig); 338 asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id, 339 long min_nr, 340 long nr, 341 struct io_event __user *events, 342 struct old_timespec32 __user *timeout, 343 const struct __aio_sigset *sig); 344 asmlinkage long sys_io_uring_setup(u32 entries, 345 struct io_uring_params __user *p); 346 asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit, 347 u32 min_complete, u32 flags, 348 const void __user *argp, size_t argsz); 349 asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op, 350 void __user *arg, unsigned int nr_args); 351 352 /* fs/xattr.c */ 353 asmlinkage long sys_setxattr(const char __user *path, const char __user *name, 354 const void __user *value, size_t size, int flags); 355 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name, 356 const void __user *value, size_t size, int flags); 357 asmlinkage long sys_fsetxattr(int fd, const char __user *name, 358 const void __user *value, size_t size, int flags); 359 asmlinkage long sys_getxattr(const char __user *path, const char __user *name, 360 void __user *value, size_t size); 361 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name, 362 void __user *value, size_t size); 363 asmlinkage long sys_fgetxattr(int fd, const char __user *name, 364 void __user *value, size_t size); 365 asmlinkage long sys_listxattr(const char __user *path, char __user *list, 366 size_t size); 367 asmlinkage long sys_llistxattr(const char __user *path, char __user *list, 368 size_t size); 369 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size); 370 asmlinkage long sys_removexattr(const char __user *path, 371 const char __user *name); 372 asmlinkage long sys_lremovexattr(const char __user *path, 373 const char __user *name); 374 asmlinkage long sys_fremovexattr(int fd, const char __user *name); 375 376 /* fs/dcache.c */ 377 asmlinkage long sys_getcwd(char __user *buf, unsigned long size); 378 379 /* fs/cookies.c */ 380 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len); 381 382 /* fs/eventfd.c */ 383 asmlinkage long sys_eventfd2(unsigned int count, int flags); 384 385 /* fs/eventpoll.c */ 386 asmlinkage long sys_epoll_create1(int flags); 387 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, 388 struct epoll_event __user *event); 389 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events, 390 int maxevents, int timeout, 391 const sigset_t __user *sigmask, 392 size_t sigsetsize); 393 asmlinkage long sys_epoll_pwait2(int epfd, struct epoll_event __user *events, 394 int maxevents, 395 const struct __kernel_timespec __user *timeout, 396 const sigset_t __user *sigmask, 397 size_t sigsetsize); 398 399 /* fs/fcntl.c */ 400 asmlinkage long sys_dup(unsigned int fildes); 401 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags); 402 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); 403 #if BITS_PER_LONG == 32 404 asmlinkage long sys_fcntl64(unsigned int fd, 405 unsigned int cmd, unsigned long arg); 406 #endif 407 408 /* fs/inotify_user.c */ 409 asmlinkage long sys_inotify_init1(int flags); 410 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, 411 u32 mask); 412 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd); 413 414 /* fs/ioctl.c */ 415 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, 416 unsigned long arg); 417 418 /* fs/ioprio.c */ 419 asmlinkage long sys_ioprio_set(int which, int who, int ioprio); 420 asmlinkage long sys_ioprio_get(int which, int who); 421 422 /* fs/locks.c */ 423 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd); 424 425 /* fs/namei.c */ 426 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode, 427 unsigned dev); 428 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode); 429 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag); 430 asmlinkage long sys_symlinkat(const char __user * oldname, 431 int newdfd, const char __user * newname); 432 asmlinkage long sys_linkat(int olddfd, const char __user *oldname, 433 int newdfd, const char __user *newname, int flags); 434 asmlinkage long sys_renameat(int olddfd, const char __user * oldname, 435 int newdfd, const char __user * newname); 436 437 /* fs/namespace.c */ 438 asmlinkage long sys_umount(char __user *name, int flags); 439 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name, 440 char __user *type, unsigned long flags, 441 void __user *data); 442 asmlinkage long sys_pivot_root(const char __user *new_root, 443 const char __user *put_old); 444 445 /* fs/nfsctl.c */ 446 447 /* fs/open.c */ 448 asmlinkage long sys_statfs(const char __user * path, 449 struct statfs __user *buf); 450 asmlinkage long sys_statfs64(const char __user *path, size_t sz, 451 struct statfs64 __user *buf); 452 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf); 453 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz, 454 struct statfs64 __user *buf); 455 asmlinkage long sys_truncate(const char __user *path, long length); 456 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length); 457 #if BITS_PER_LONG == 32 458 asmlinkage long sys_truncate64(const char __user *path, loff_t length); 459 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length); 460 #endif 461 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len); 462 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode); 463 asmlinkage long sys_faccessat2(int dfd, const char __user *filename, int mode, 464 int flags); 465 asmlinkage long sys_chdir(const char __user *filename); 466 asmlinkage long sys_fchdir(unsigned int fd); 467 asmlinkage long sys_chroot(const char __user *filename); 468 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode); 469 asmlinkage long sys_fchmodat(int dfd, const char __user * filename, 470 umode_t mode); 471 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user, 472 gid_t group, int flag); 473 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group); 474 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags, 475 umode_t mode); 476 asmlinkage long sys_openat2(int dfd, const char __user *filename, 477 struct open_how *how, size_t size); 478 asmlinkage long sys_close(unsigned int fd); 479 asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd, 480 unsigned int flags); 481 asmlinkage long sys_vhangup(void); 482 483 /* fs/pipe.c */ 484 asmlinkage long sys_pipe2(int __user *fildes, int flags); 485 486 /* fs/quota.c */ 487 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special, 488 qid_t id, void __user *addr); 489 asmlinkage long sys_quotactl_fd(unsigned int fd, unsigned int cmd, qid_t id, 490 void __user *addr); 491 492 /* fs/readdir.c */ 493 asmlinkage long sys_getdents64(unsigned int fd, 494 struct linux_dirent64 __user *dirent, 495 unsigned int count); 496 497 /* fs/read_write.c */ 498 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high, 499 unsigned long offset_low, loff_t __user *result, 500 unsigned int whence); 501 asmlinkage long sys_lseek(unsigned int fd, off_t offset, 502 unsigned int whence); 503 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count); 504 asmlinkage long sys_write(unsigned int fd, const char __user *buf, 505 size_t count); 506 asmlinkage long sys_readv(unsigned long fd, 507 const struct iovec __user *vec, 508 unsigned long vlen); 509 asmlinkage long sys_writev(unsigned long fd, 510 const struct iovec __user *vec, 511 unsigned long vlen); 512 asmlinkage long sys_pread64(unsigned int fd, char __user *buf, 513 size_t count, loff_t pos); 514 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf, 515 size_t count, loff_t pos); 516 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec, 517 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 518 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec, 519 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 520 521 /* fs/sendfile.c */ 522 asmlinkage long sys_sendfile64(int out_fd, int in_fd, 523 loff_t __user *offset, size_t count); 524 525 /* fs/select.c */ 526 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *, 527 fd_set __user *, struct __kernel_timespec __user *, 528 void __user *); 529 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *, 530 fd_set __user *, struct old_timespec32 __user *, 531 void __user *); 532 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int, 533 struct __kernel_timespec __user *, const sigset_t __user *, 534 size_t); 535 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int, 536 struct old_timespec32 __user *, const sigset_t __user *, 537 size_t); 538 539 /* fs/signalfd.c */ 540 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags); 541 542 /* fs/splice.c */ 543 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov, 544 unsigned long nr_segs, unsigned int flags); 545 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in, 546 int fd_out, loff_t __user *off_out, 547 size_t len, unsigned int flags); 548 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags); 549 550 /* fs/stat.c */ 551 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf, 552 int bufsiz); 553 asmlinkage long sys_newfstatat(int dfd, const char __user *filename, 554 struct stat __user *statbuf, int flag); 555 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf); 556 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 557 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf); 558 asmlinkage long sys_fstatat64(int dfd, const char __user *filename, 559 struct stat64 __user *statbuf, int flag); 560 #endif 561 562 /* fs/sync.c */ 563 asmlinkage long sys_sync(void); 564 asmlinkage long sys_fsync(unsigned int fd); 565 asmlinkage long sys_fdatasync(unsigned int fd); 566 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags, 567 loff_t offset, loff_t nbytes); 568 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 569 unsigned int flags); 570 571 /* fs/timerfd.c */ 572 asmlinkage long sys_timerfd_create(int clockid, int flags); 573 asmlinkage long sys_timerfd_settime(int ufd, int flags, 574 const struct __kernel_itimerspec __user *utmr, 575 struct __kernel_itimerspec __user *otmr); 576 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr); 577 asmlinkage long sys_timerfd_gettime32(int ufd, 578 struct old_itimerspec32 __user *otmr); 579 asmlinkage long sys_timerfd_settime32(int ufd, int flags, 580 const struct old_itimerspec32 __user *utmr, 581 struct old_itimerspec32 __user *otmr); 582 583 /* fs/utimes.c */ 584 asmlinkage long sys_utimensat(int dfd, const char __user *filename, 585 struct __kernel_timespec __user *utimes, 586 int flags); 587 asmlinkage long sys_utimensat_time32(unsigned int dfd, 588 const char __user *filename, 589 struct old_timespec32 __user *t, int flags); 590 591 /* kernel/acct.c */ 592 asmlinkage long sys_acct(const char __user *name); 593 594 /* kernel/capability.c */ 595 asmlinkage long sys_capget(cap_user_header_t header, 596 cap_user_data_t dataptr); 597 asmlinkage long sys_capset(cap_user_header_t header, 598 const cap_user_data_t data); 599 600 /* kernel/exec_domain.c */ 601 asmlinkage long sys_personality(unsigned int personality); 602 603 /* kernel/exit.c */ 604 asmlinkage long sys_exit(int error_code); 605 asmlinkage long sys_exit_group(int error_code); 606 asmlinkage long sys_waitid(int which, pid_t pid, 607 struct siginfo __user *infop, 608 int options, struct rusage __user *ru); 609 610 /* kernel/fork.c */ 611 asmlinkage long sys_set_tid_address(int __user *tidptr); 612 asmlinkage long sys_unshare(unsigned long unshare_flags); 613 614 /* kernel/futex.c */ 615 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val, 616 const struct __kernel_timespec __user *utime, 617 u32 __user *uaddr2, u32 val3); 618 asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val, 619 const struct old_timespec32 __user *utime, 620 u32 __user *uaddr2, u32 val3); 621 asmlinkage long sys_get_robust_list(int pid, 622 struct robust_list_head __user * __user *head_ptr, 623 size_t __user *len_ptr); 624 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, 625 size_t len); 626 627 /* kernel/hrtimer.c */ 628 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp, 629 struct __kernel_timespec __user *rmtp); 630 asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp, 631 struct old_timespec32 __user *rmtp); 632 633 /* kernel/itimer.c */ 634 asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value); 635 asmlinkage long sys_setitimer(int which, 636 struct __kernel_old_itimerval __user *value, 637 struct __kernel_old_itimerval __user *ovalue); 638 639 /* kernel/kexec.c */ 640 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments, 641 struct kexec_segment __user *segments, 642 unsigned long flags); 643 644 /* kernel/module.c */ 645 asmlinkage long sys_init_module(void __user *umod, unsigned long len, 646 const char __user *uargs); 647 asmlinkage long sys_delete_module(const char __user *name_user, 648 unsigned int flags); 649 650 /* kernel/posix-timers.c */ 651 asmlinkage long sys_timer_create(clockid_t which_clock, 652 struct sigevent __user *timer_event_spec, 653 timer_t __user * created_timer_id); 654 asmlinkage long sys_timer_gettime(timer_t timer_id, 655 struct __kernel_itimerspec __user *setting); 656 asmlinkage long sys_timer_getoverrun(timer_t timer_id); 657 asmlinkage long sys_timer_settime(timer_t timer_id, int flags, 658 const struct __kernel_itimerspec __user *new_setting, 659 struct __kernel_itimerspec __user *old_setting); 660 asmlinkage long sys_timer_delete(timer_t timer_id); 661 asmlinkage long sys_clock_settime(clockid_t which_clock, 662 const struct __kernel_timespec __user *tp); 663 asmlinkage long sys_clock_gettime(clockid_t which_clock, 664 struct __kernel_timespec __user *tp); 665 asmlinkage long sys_clock_getres(clockid_t which_clock, 666 struct __kernel_timespec __user *tp); 667 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags, 668 const struct __kernel_timespec __user *rqtp, 669 struct __kernel_timespec __user *rmtp); 670 asmlinkage long sys_timer_gettime32(timer_t timer_id, 671 struct old_itimerspec32 __user *setting); 672 asmlinkage long sys_timer_settime32(timer_t timer_id, int flags, 673 struct old_itimerspec32 __user *new, 674 struct old_itimerspec32 __user *old); 675 asmlinkage long sys_clock_settime32(clockid_t which_clock, 676 struct old_timespec32 __user *tp); 677 asmlinkage long sys_clock_gettime32(clockid_t which_clock, 678 struct old_timespec32 __user *tp); 679 asmlinkage long sys_clock_getres_time32(clockid_t which_clock, 680 struct old_timespec32 __user *tp); 681 asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags, 682 struct old_timespec32 __user *rqtp, 683 struct old_timespec32 __user *rmtp); 684 685 /* kernel/printk.c */ 686 asmlinkage long sys_syslog(int type, char __user *buf, int len); 687 688 /* kernel/ptrace.c */ 689 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, 690 unsigned long data); 691 /* kernel/sched/core.c */ 692 693 asmlinkage long sys_sched_setparam(pid_t pid, 694 struct sched_param __user *param); 695 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy, 696 struct sched_param __user *param); 697 asmlinkage long sys_sched_getscheduler(pid_t pid); 698 asmlinkage long sys_sched_getparam(pid_t pid, 699 struct sched_param __user *param); 700 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len, 701 unsigned long __user *user_mask_ptr); 702 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len, 703 unsigned long __user *user_mask_ptr); 704 asmlinkage long sys_sched_yield(void); 705 asmlinkage long sys_sched_get_priority_max(int policy); 706 asmlinkage long sys_sched_get_priority_min(int policy); 707 asmlinkage long sys_sched_rr_get_interval(pid_t pid, 708 struct __kernel_timespec __user *interval); 709 asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid, 710 struct old_timespec32 __user *interval); 711 712 /* kernel/signal.c */ 713 asmlinkage long sys_restart_syscall(void); 714 asmlinkage long sys_kill(pid_t pid, int sig); 715 asmlinkage long sys_tkill(pid_t pid, int sig); 716 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig); 717 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss, 718 struct sigaltstack __user *uoss); 719 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize); 720 #ifndef CONFIG_ODD_RT_SIGACTION 721 asmlinkage long sys_rt_sigaction(int, 722 const struct sigaction __user *, 723 struct sigaction __user *, 724 size_t); 725 #endif 726 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set, 727 sigset_t __user *oset, size_t sigsetsize); 728 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize); 729 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese, 730 siginfo_t __user *uinfo, 731 const struct __kernel_timespec __user *uts, 732 size_t sigsetsize); 733 asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese, 734 siginfo_t __user *uinfo, 735 const struct old_timespec32 __user *uts, 736 size_t sigsetsize); 737 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo); 738 739 /* kernel/sys.c */ 740 asmlinkage long sys_setpriority(int which, int who, int niceval); 741 asmlinkage long sys_getpriority(int which, int who); 742 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, 743 void __user *arg); 744 asmlinkage long sys_setregid(gid_t rgid, gid_t egid); 745 asmlinkage long sys_setgid(gid_t gid); 746 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid); 747 asmlinkage long sys_setuid(uid_t uid); 748 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid); 749 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid); 750 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid); 751 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid); 752 asmlinkage long sys_setfsuid(uid_t uid); 753 asmlinkage long sys_setfsgid(gid_t gid); 754 asmlinkage long sys_times(struct tms __user *tbuf); 755 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid); 756 asmlinkage long sys_getpgid(pid_t pid); 757 asmlinkage long sys_getsid(pid_t pid); 758 asmlinkage long sys_setsid(void); 759 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist); 760 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist); 761 asmlinkage long sys_newuname(struct new_utsname __user *name); 762 asmlinkage long sys_sethostname(char __user *name, int len); 763 asmlinkage long sys_setdomainname(char __user *name, int len); 764 asmlinkage long sys_getrlimit(unsigned int resource, 765 struct rlimit __user *rlim); 766 asmlinkage long sys_setrlimit(unsigned int resource, 767 struct rlimit __user *rlim); 768 asmlinkage long sys_getrusage(int who, struct rusage __user *ru); 769 asmlinkage long sys_umask(int mask); 770 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, 771 unsigned long arg4, unsigned long arg5); 772 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache); 773 774 /* kernel/time.c */ 775 asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv, 776 struct timezone __user *tz); 777 asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv, 778 struct timezone __user *tz); 779 asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p); 780 asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p); 781 782 /* kernel/sys.c */ 783 asmlinkage long sys_getpid(void); 784 asmlinkage long sys_getppid(void); 785 asmlinkage long sys_getuid(void); 786 asmlinkage long sys_geteuid(void); 787 asmlinkage long sys_getgid(void); 788 asmlinkage long sys_getegid(void); 789 asmlinkage long sys_gettid(void); 790 asmlinkage long sys_sysinfo(struct sysinfo __user *info); 791 792 /* ipc/mqueue.c */ 793 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr); 794 asmlinkage long sys_mq_unlink(const char __user *name); 795 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); 796 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); 797 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification); 798 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat); 799 asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes, 800 char __user *u_msg_ptr, 801 unsigned int msg_len, unsigned int __user *u_msg_prio, 802 const struct old_timespec32 __user *u_abs_timeout); 803 asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes, 804 const char __user *u_msg_ptr, 805 unsigned int msg_len, unsigned int msg_prio, 806 const struct old_timespec32 __user *u_abs_timeout); 807 808 /* ipc/msg.c */ 809 asmlinkage long sys_msgget(key_t key, int msgflg); 810 asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 811 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 812 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp, 813 size_t msgsz, long msgtyp, int msgflg); 814 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp, 815 size_t msgsz, int msgflg); 816 817 /* ipc/sem.c */ 818 asmlinkage long sys_semget(key_t key, int nsems, int semflg); 819 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg); 820 asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg); 821 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops, 822 unsigned nsops, 823 const struct __kernel_timespec __user *timeout); 824 asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops, 825 unsigned nsops, 826 const struct old_timespec32 __user *timeout); 827 asmlinkage long sys_semop(int semid, struct sembuf __user *sops, 828 unsigned nsops); 829 830 /* ipc/shm.c */ 831 asmlinkage long sys_shmget(key_t key, size_t size, int flag); 832 asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 833 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 834 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg); 835 asmlinkage long sys_shmdt(char __user *shmaddr); 836 837 /* net/socket.c */ 838 asmlinkage long sys_socket(int, int, int); 839 asmlinkage long sys_socketpair(int, int, int, int __user *); 840 asmlinkage long sys_bind(int, struct sockaddr __user *, int); 841 asmlinkage long sys_listen(int, int); 842 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *); 843 asmlinkage long sys_connect(int, struct sockaddr __user *, int); 844 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *); 845 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *); 846 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned, 847 struct sockaddr __user *, int); 848 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned, 849 struct sockaddr __user *, int __user *); 850 asmlinkage long sys_setsockopt(int fd, int level, int optname, 851 char __user *optval, int optlen); 852 asmlinkage long sys_getsockopt(int fd, int level, int optname, 853 char __user *optval, int __user *optlen); 854 asmlinkage long sys_shutdown(int, int); 855 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 856 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 857 858 /* mm/filemap.c */ 859 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count); 860 861 /* mm/nommu.c, also with MMU */ 862 asmlinkage long sys_brk(unsigned long brk); 863 asmlinkage long sys_munmap(unsigned long addr, size_t len); 864 asmlinkage long sys_mremap(unsigned long addr, 865 unsigned long old_len, unsigned long new_len, 866 unsigned long flags, unsigned long new_addr); 867 868 /* security/keys/keyctl.c */ 869 asmlinkage long sys_add_key(const char __user *_type, 870 const char __user *_description, 871 const void __user *_payload, 872 size_t plen, 873 key_serial_t destringid); 874 asmlinkage long sys_request_key(const char __user *_type, 875 const char __user *_description, 876 const char __user *_callout_info, 877 key_serial_t destringid); 878 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3, 879 unsigned long arg4, unsigned long arg5); 880 881 /* arch/example/kernel/sys_example.c */ 882 #ifdef CONFIG_CLONE_BACKWARDS 883 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long, 884 int __user *); 885 #else 886 #ifdef CONFIG_CLONE_BACKWARDS3 887 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *, 888 int __user *, unsigned long); 889 #else 890 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, 891 int __user *, unsigned long); 892 #endif 893 #endif 894 895 asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size); 896 897 asmlinkage long sys_execve(const char __user *filename, 898 const char __user *const __user *argv, 899 const char __user *const __user *envp); 900 901 /* mm/fadvise.c */ 902 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 903 904 /* mm/, CONFIG_MMU only */ 905 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags); 906 asmlinkage long sys_swapoff(const char __user *specialfile); 907 asmlinkage long sys_mprotect(unsigned long start, size_t len, 908 unsigned long prot); 909 asmlinkage long sys_msync(unsigned long start, size_t len, int flags); 910 asmlinkage long sys_mlock(unsigned long start, size_t len); 911 asmlinkage long sys_munlock(unsigned long start, size_t len); 912 asmlinkage long sys_mlockall(int flags); 913 asmlinkage long sys_munlockall(void); 914 asmlinkage long sys_mincore(unsigned long start, size_t len, 915 unsigned char __user * vec); 916 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior); 917 asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec, 918 size_t vlen, int behavior, unsigned int flags); 919 asmlinkage long sys_process_mrelease(int pidfd, unsigned int flags); 920 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, 921 unsigned long prot, unsigned long pgoff, 922 unsigned long flags); 923 asmlinkage long sys_mbind(unsigned long start, unsigned long len, 924 unsigned long mode, 925 const unsigned long __user *nmask, 926 unsigned long maxnode, 927 unsigned flags); 928 asmlinkage long sys_get_mempolicy(int __user *policy, 929 unsigned long __user *nmask, 930 unsigned long maxnode, 931 unsigned long addr, unsigned long flags); 932 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask, 933 unsigned long maxnode); 934 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode, 935 const unsigned long __user *from, 936 const unsigned long __user *to); 937 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages, 938 const void __user * __user *pages, 939 const int __user *nodes, 940 int __user *status, 941 int flags); 942 943 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, 944 siginfo_t __user *uinfo); 945 asmlinkage long sys_perf_event_open( 946 struct perf_event_attr __user *attr_uptr, 947 pid_t pid, int cpu, int group_fd, unsigned long flags); 948 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int); 949 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg, 950 unsigned int vlen, unsigned flags, 951 struct __kernel_timespec __user *timeout); 952 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg, 953 unsigned int vlen, unsigned flags, 954 struct old_timespec32 __user *timeout); 955 956 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr, 957 int options, struct rusage __user *ru); 958 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource, 959 const struct rlimit64 __user *new_rlim, 960 struct rlimit64 __user *old_rlim); 961 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags); 962 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags, 963 u64 mask, int fd, 964 const char __user *pathname); 965 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name, 966 struct file_handle __user *handle, 967 int __user *mnt_id, int flag); 968 asmlinkage long sys_open_by_handle_at(int mountdirfd, 969 struct file_handle __user *handle, 970 int flags); 971 asmlinkage long sys_clock_adjtime(clockid_t which_clock, 972 struct __kernel_timex __user *tx); 973 asmlinkage long sys_clock_adjtime32(clockid_t which_clock, 974 struct old_timex32 __user *tx); 975 asmlinkage long sys_syncfs(int fd); 976 asmlinkage long sys_setns(int fd, int nstype); 977 asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags); 978 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg, 979 unsigned int vlen, unsigned flags); 980 asmlinkage long sys_process_vm_readv(pid_t pid, 981 const struct iovec __user *lvec, 982 unsigned long liovcnt, 983 const struct iovec __user *rvec, 984 unsigned long riovcnt, 985 unsigned long flags); 986 asmlinkage long sys_process_vm_writev(pid_t pid, 987 const struct iovec __user *lvec, 988 unsigned long liovcnt, 989 const struct iovec __user *rvec, 990 unsigned long riovcnt, 991 unsigned long flags); 992 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type, 993 unsigned long idx1, unsigned long idx2); 994 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags); 995 asmlinkage long sys_sched_setattr(pid_t pid, 996 struct sched_attr __user *attr, 997 unsigned int flags); 998 asmlinkage long sys_sched_getattr(pid_t pid, 999 struct sched_attr __user *attr, 1000 unsigned int size, 1001 unsigned int flags); 1002 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname, 1003 int newdfd, const char __user *newname, 1004 unsigned int flags); 1005 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, 1006 void __user *uargs); 1007 asmlinkage long sys_getrandom(char __user *buf, size_t count, 1008 unsigned int flags); 1009 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags); 1010 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size); 1011 asmlinkage long sys_execveat(int dfd, const char __user *filename, 1012 const char __user *const __user *argv, 1013 const char __user *const __user *envp, int flags); 1014 asmlinkage long sys_userfaultfd(int flags); 1015 asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id); 1016 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags); 1017 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in, 1018 int fd_out, loff_t __user *off_out, 1019 size_t len, unsigned int flags); 1020 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec, 1021 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 1022 rwf_t flags); 1023 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec, 1024 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 1025 rwf_t flags); 1026 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len, 1027 unsigned long prot, int pkey); 1028 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val); 1029 asmlinkage long sys_pkey_free(int pkey); 1030 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags, 1031 unsigned mask, struct statx __user *buffer); 1032 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len, 1033 int flags, uint32_t sig); 1034 asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags); 1035 asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path, 1036 int to_dfd, const char __user *to_path, 1037 unsigned int ms_flags); 1038 asmlinkage long sys_mount_setattr(int dfd, const char __user *path, 1039 unsigned int flags, 1040 struct mount_attr __user *uattr, size_t usize); 1041 asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags); 1042 asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key, 1043 const void __user *value, int aux); 1044 asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags); 1045 asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags); 1046 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig, 1047 siginfo_t __user *info, 1048 unsigned int flags); 1049 asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags); 1050 asmlinkage long sys_landlock_create_ruleset(const struct landlock_ruleset_attr __user *attr, 1051 size_t size, __u32 flags); 1052 asmlinkage long sys_landlock_add_rule(int ruleset_fd, enum landlock_rule_type rule_type, 1053 const void __user *rule_attr, __u32 flags); 1054 asmlinkage long sys_landlock_restrict_self(int ruleset_fd, __u32 flags); 1055 asmlinkage long sys_memfd_secret(unsigned int flags); 1056 1057 /* 1058 * Architecture-specific system calls 1059 */ 1060 1061 /* arch/x86/kernel/ioport.c */ 1062 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); 1063 1064 /* pciconfig: alpha, arm, arm64, ia64, sparc */ 1065 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn, 1066 unsigned long off, unsigned long len, 1067 void __user *buf); 1068 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn, 1069 unsigned long off, unsigned long len, 1070 void __user *buf); 1071 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn); 1072 1073 /* powerpc */ 1074 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc, 1075 __u32 __user *ustatus); 1076 asmlinkage long sys_spu_create(const char __user *name, 1077 unsigned int flags, umode_t mode, int fd); 1078 1079 1080 /* 1081 * Deprecated system calls which are still defined in 1082 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch 1083 */ 1084 1085 /* __ARCH_WANT_SYSCALL_NO_AT */ 1086 asmlinkage long sys_open(const char __user *filename, 1087 int flags, umode_t mode); 1088 asmlinkage long sys_link(const char __user *oldname, 1089 const char __user *newname); 1090 asmlinkage long sys_unlink(const char __user *pathname); 1091 asmlinkage long sys_mknod(const char __user *filename, umode_t mode, 1092 unsigned dev); 1093 asmlinkage long sys_chmod(const char __user *filename, umode_t mode); 1094 asmlinkage long sys_chown(const char __user *filename, 1095 uid_t user, gid_t group); 1096 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode); 1097 asmlinkage long sys_rmdir(const char __user *pathname); 1098 asmlinkage long sys_lchown(const char __user *filename, 1099 uid_t user, gid_t group); 1100 asmlinkage long sys_access(const char __user *filename, int mode); 1101 asmlinkage long sys_rename(const char __user *oldname, 1102 const char __user *newname); 1103 asmlinkage long sys_symlink(const char __user *old, const char __user *new); 1104 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 1105 asmlinkage long sys_stat64(const char __user *filename, 1106 struct stat64 __user *statbuf); 1107 asmlinkage long sys_lstat64(const char __user *filename, 1108 struct stat64 __user *statbuf); 1109 #endif 1110 1111 /* __ARCH_WANT_SYSCALL_NO_FLAGS */ 1112 asmlinkage long sys_pipe(int __user *fildes); 1113 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd); 1114 asmlinkage long sys_epoll_create(int size); 1115 asmlinkage long sys_inotify_init(void); 1116 asmlinkage long sys_eventfd(unsigned int count); 1117 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask); 1118 1119 /* __ARCH_WANT_SYSCALL_OFF_T */ 1120 asmlinkage long sys_sendfile(int out_fd, int in_fd, 1121 off_t __user *offset, size_t count); 1122 asmlinkage long sys_newstat(const char __user *filename, 1123 struct stat __user *statbuf); 1124 asmlinkage long sys_newlstat(const char __user *filename, 1125 struct stat __user *statbuf); 1126 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice); 1127 1128 /* __ARCH_WANT_SYSCALL_DEPRECATED */ 1129 asmlinkage long sys_alarm(unsigned int seconds); 1130 asmlinkage long sys_getpgrp(void); 1131 asmlinkage long sys_pause(void); 1132 asmlinkage long sys_time(__kernel_old_time_t __user *tloc); 1133 asmlinkage long sys_time32(old_time32_t __user *tloc); 1134 #ifdef __ARCH_WANT_SYS_UTIME 1135 asmlinkage long sys_utime(char __user *filename, 1136 struct utimbuf __user *times); 1137 asmlinkage long sys_utimes(char __user *filename, 1138 struct __kernel_old_timeval __user *utimes); 1139 asmlinkage long sys_futimesat(int dfd, const char __user *filename, 1140 struct __kernel_old_timeval __user *utimes); 1141 #endif 1142 asmlinkage long sys_futimesat_time32(unsigned int dfd, 1143 const char __user *filename, 1144 struct old_timeval32 __user *t); 1145 asmlinkage long sys_utime32(const char __user *filename, 1146 struct old_utimbuf32 __user *t); 1147 asmlinkage long sys_utimes_time32(const char __user *filename, 1148 struct old_timeval32 __user *t); 1149 asmlinkage long sys_creat(const char __user *pathname, umode_t mode); 1150 asmlinkage long sys_getdents(unsigned int fd, 1151 struct linux_dirent __user *dirent, 1152 unsigned int count); 1153 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp, 1154 fd_set __user *exp, struct __kernel_old_timeval __user *tvp); 1155 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds, 1156 int timeout); 1157 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, 1158 int maxevents, int timeout); 1159 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf); 1160 asmlinkage long sys_vfork(void); 1161 asmlinkage long sys_recv(int, void __user *, size_t, unsigned); 1162 asmlinkage long sys_send(int, void __user *, size_t, unsigned); 1163 asmlinkage long sys_oldumount(char __user *name); 1164 asmlinkage long sys_uselib(const char __user *library); 1165 asmlinkage long sys_sysfs(int option, 1166 unsigned long arg1, unsigned long arg2); 1167 asmlinkage long sys_fork(void); 1168 1169 /* obsolete: kernel/time/time.c */ 1170 asmlinkage long sys_stime(__kernel_old_time_t __user *tptr); 1171 asmlinkage long sys_stime32(old_time32_t __user *tptr); 1172 1173 /* obsolete: kernel/signal.c */ 1174 asmlinkage long sys_sigpending(old_sigset_t __user *uset); 1175 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set, 1176 old_sigset_t __user *oset); 1177 #ifdef CONFIG_OLD_SIGSUSPEND 1178 asmlinkage long sys_sigsuspend(old_sigset_t mask); 1179 #endif 1180 1181 #ifdef CONFIG_OLD_SIGSUSPEND3 1182 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask); 1183 #endif 1184 1185 #ifdef CONFIG_OLD_SIGACTION 1186 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *, 1187 struct old_sigaction __user *); 1188 #endif 1189 asmlinkage long sys_sgetmask(void); 1190 asmlinkage long sys_ssetmask(int newmask); 1191 asmlinkage long sys_signal(int sig, __sighandler_t handler); 1192 1193 /* obsolete: kernel/sched/core.c */ 1194 asmlinkage long sys_nice(int increment); 1195 1196 /* obsolete: kernel/kexec_file.c */ 1197 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd, 1198 unsigned long cmdline_len, 1199 const char __user *cmdline_ptr, 1200 unsigned long flags); 1201 1202 /* obsolete: kernel/exit.c */ 1203 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options); 1204 1205 /* obsolete: kernel/uid16.c */ 1206 #ifdef CONFIG_HAVE_UID16 1207 asmlinkage long sys_chown16(const char __user *filename, 1208 old_uid_t user, old_gid_t group); 1209 asmlinkage long sys_lchown16(const char __user *filename, 1210 old_uid_t user, old_gid_t group); 1211 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group); 1212 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid); 1213 asmlinkage long sys_setgid16(old_gid_t gid); 1214 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid); 1215 asmlinkage long sys_setuid16(old_uid_t uid); 1216 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid); 1217 asmlinkage long sys_getresuid16(old_uid_t __user *ruid, 1218 old_uid_t __user *euid, old_uid_t __user *suid); 1219 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid); 1220 asmlinkage long sys_getresgid16(old_gid_t __user *rgid, 1221 old_gid_t __user *egid, old_gid_t __user *sgid); 1222 asmlinkage long sys_setfsuid16(old_uid_t uid); 1223 asmlinkage long sys_setfsgid16(old_gid_t gid); 1224 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist); 1225 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist); 1226 asmlinkage long sys_getuid16(void); 1227 asmlinkage long sys_geteuid16(void); 1228 asmlinkage long sys_getgid16(void); 1229 asmlinkage long sys_getegid16(void); 1230 #endif 1231 1232 /* obsolete: net/socket.c */ 1233 asmlinkage long sys_socketcall(int call, unsigned long __user *args); 1234 1235 /* obsolete: fs/stat.c */ 1236 asmlinkage long sys_stat(const char __user *filename, 1237 struct __old_kernel_stat __user *statbuf); 1238 asmlinkage long sys_lstat(const char __user *filename, 1239 struct __old_kernel_stat __user *statbuf); 1240 asmlinkage long sys_fstat(unsigned int fd, 1241 struct __old_kernel_stat __user *statbuf); 1242 asmlinkage long sys_readlink(const char __user *path, 1243 char __user *buf, int bufsiz); 1244 1245 /* obsolete: fs/select.c */ 1246 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg); 1247 1248 /* obsolete: fs/readdir.c */ 1249 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int); 1250 1251 /* obsolete: kernel/sys.c */ 1252 asmlinkage long sys_gethostname(char __user *name, int len); 1253 asmlinkage long sys_uname(struct old_utsname __user *); 1254 asmlinkage long sys_olduname(struct oldold_utsname __user *); 1255 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT 1256 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim); 1257 #endif 1258 1259 /* obsolete: ipc */ 1260 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second, 1261 unsigned long third, void __user *ptr, long fifth); 1262 1263 /* obsolete: mm/ */ 1264 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len, 1265 unsigned long prot, unsigned long flags, 1266 unsigned long fd, unsigned long pgoff); 1267 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg); 1268 1269 1270 /* 1271 * Not a real system call, but a placeholder for syscalls which are 1272 * not implemented -- see kernel/sys_ni.c 1273 */ 1274 asmlinkage long sys_ni_syscall(void); 1275 1276 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 1277 1278 1279 /* 1280 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly. 1281 * Instead, use one of the functions which work equivalently, such as 1282 * the ksys_xyzyyz() functions prototyped below. 1283 */ 1284 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count); 1285 int ksys_fchown(unsigned int fd, uid_t user, gid_t group); 1286 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count); 1287 void ksys_sync(void); 1288 int ksys_unshare(unsigned long unshare_flags); 1289 int ksys_setsid(void); 1290 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 1291 unsigned int flags); 1292 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count, 1293 loff_t pos); 1294 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf, 1295 size_t count, loff_t pos); 1296 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len); 1297 #ifdef CONFIG_ADVISE_SYSCALLS 1298 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 1299 #else ksys_fadvise64_64(int fd,loff_t offset,loff_t len,int advice)1300 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, 1301 int advice) 1302 { 1303 return -EINVAL; 1304 } 1305 #endif 1306 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len, 1307 unsigned long prot, unsigned long flags, 1308 unsigned long fd, unsigned long pgoff); 1309 ssize_t ksys_readahead(int fd, loff_t offset, size_t count); 1310 int ksys_ipc(unsigned int call, int first, unsigned long second, 1311 unsigned long third, void __user * ptr, long fifth); 1312 int compat_ksys_ipc(u32 call, int first, int second, 1313 u32 third, u32 ptr, u32 fifth); 1314 1315 /* 1316 * The following kernel syscall equivalents are just wrappers to fs-internal 1317 * functions. Therefore, provide stubs to be inlined at the callsites. 1318 */ 1319 extern int do_fchownat(int dfd, const char __user *filename, uid_t user, 1320 gid_t group, int flag); 1321 ksys_chown(const char __user * filename,uid_t user,gid_t group)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 ksys_lchown(const char __user * filename,uid_t user,gid_t group)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 ksys_ftruncate(unsigned int fd,loff_t length)1337 static inline long ksys_ftruncate(unsigned int fd, loff_t length) 1338 { 1339 return do_sys_ftruncate(fd, length, 1); 1340 } 1341 1342 extern long do_sys_truncate(const char __user *pathname, loff_t length); 1343 ksys_truncate(const char __user * pathname,loff_t length)1344 static inline long ksys_truncate(const char __user *pathname, loff_t length) 1345 { 1346 return do_sys_truncate(pathname, length); 1347 } 1348 ksys_personality(unsigned int personality)1349 static inline unsigned int ksys_personality(unsigned int personality) 1350 { 1351 unsigned int old = current->personality; 1352 1353 if (personality != 0xffffffff) 1354 set_personality(personality); 1355 1356 return old; 1357 } 1358 1359 /* for __ARCH_WANT_SYS_IPC */ 1360 long ksys_semtimedop(int semid, struct sembuf __user *tsops, 1361 unsigned int nsops, 1362 const struct __kernel_timespec __user *timeout); 1363 long ksys_semget(key_t key, int nsems, int semflg); 1364 long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg); 1365 long ksys_msgget(key_t key, int msgflg); 1366 long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 1367 long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz, 1368 long msgtyp, int msgflg); 1369 long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz, 1370 int msgflg); 1371 long ksys_shmget(key_t key, size_t size, int shmflg); 1372 long ksys_shmdt(char __user *shmaddr); 1373 long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 1374 long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems, 1375 unsigned int nsops, 1376 const struct old_timespec32 __user *timeout); 1377 long __do_semtimedop(int semid, struct sembuf *tsems, unsigned int nsops, 1378 const struct timespec64 *timeout, 1379 struct ipc_namespace *ns); 1380 1381 int __sys_getsockopt(int fd, int level, int optname, char __user *optval, 1382 int __user *optlen); 1383 int __sys_setsockopt(int fd, int level, int optname, char __user *optval, 1384 int optlen); 1385 #endif 1386