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_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 */ 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 #ifdef TIF_FSCHECK 294 clear_thread_flag(TIF_FSCHECK); 295 #endif 296 } 297 298 /* 299 * These syscall function prototypes are kept in the same order as 300 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below, 301 * followed by deprecated or obsolete system calls. 302 * 303 * Please note that these prototypes here are only provided for information 304 * purposes, for static analysis, and for linking from the syscall table. 305 * These functions should not be called elsewhere from kernel code. 306 * 307 * As the syscall calling convention may be different from the default 308 * for architectures overriding the syscall calling convention, do not 309 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 310 */ 311 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 312 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx); 313 asmlinkage long sys_io_destroy(aio_context_t ctx); 314 asmlinkage long sys_io_submit(aio_context_t, long, 315 struct iocb __user * __user *); 316 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb, 317 struct io_event __user *result); 318 asmlinkage long sys_io_getevents(aio_context_t ctx_id, 319 long min_nr, 320 long nr, 321 struct io_event __user *events, 322 struct __kernel_timespec __user *timeout); 323 asmlinkage long sys_io_getevents_time32(__u32 ctx_id, 324 __s32 min_nr, 325 __s32 nr, 326 struct io_event __user *events, 327 struct old_timespec32 __user *timeout); 328 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id, 329 long min_nr, 330 long nr, 331 struct io_event __user *events, 332 struct __kernel_timespec __user *timeout, 333 const struct __aio_sigset *sig); 334 asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id, 335 long min_nr, 336 long nr, 337 struct io_event __user *events, 338 struct old_timespec32 __user *timeout, 339 const struct __aio_sigset *sig); 340 asmlinkage long sys_io_uring_setup(u32 entries, 341 struct io_uring_params __user *p); 342 asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit, 343 u32 min_complete, u32 flags, 344 const void __user *argp, size_t argsz); 345 asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op, 346 void __user *arg, unsigned int nr_args); 347 348 /* fs/xattr.c */ 349 asmlinkage long sys_setxattr(const char __user *path, const char __user *name, 350 const void __user *value, size_t size, int flags); 351 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name, 352 const void __user *value, size_t size, int flags); 353 asmlinkage long sys_fsetxattr(int fd, const char __user *name, 354 const void __user *value, size_t size, int flags); 355 asmlinkage long sys_getxattr(const char __user *path, const char __user *name, 356 void __user *value, size_t size); 357 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name, 358 void __user *value, size_t size); 359 asmlinkage long sys_fgetxattr(int fd, const char __user *name, 360 void __user *value, size_t size); 361 asmlinkage long sys_listxattr(const char __user *path, char __user *list, 362 size_t size); 363 asmlinkage long sys_llistxattr(const char __user *path, char __user *list, 364 size_t size); 365 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size); 366 asmlinkage long sys_removexattr(const char __user *path, 367 const char __user *name); 368 asmlinkage long sys_lremovexattr(const char __user *path, 369 const char __user *name); 370 asmlinkage long sys_fremovexattr(int fd, const char __user *name); 371 372 /* fs/dcache.c */ 373 asmlinkage long sys_getcwd(char __user *buf, unsigned long size); 374 375 /* fs/cookies.c */ 376 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len); 377 378 /* fs/eventfd.c */ 379 asmlinkage long sys_eventfd2(unsigned int count, int flags); 380 381 /* fs/eventpoll.c */ 382 asmlinkage long sys_epoll_create1(int flags); 383 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, 384 struct epoll_event __user *event); 385 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events, 386 int maxevents, int timeout, 387 const sigset_t __user *sigmask, 388 size_t sigsetsize); 389 asmlinkage long sys_epoll_pwait2(int epfd, struct epoll_event __user *events, 390 int maxevents, 391 const struct __kernel_timespec __user *timeout, 392 const sigset_t __user *sigmask, 393 size_t sigsetsize); 394 395 /* fs/fcntl.c */ 396 asmlinkage long sys_dup(unsigned int fildes); 397 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags); 398 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); 399 #if BITS_PER_LONG == 32 400 asmlinkage long sys_fcntl64(unsigned int fd, 401 unsigned int cmd, unsigned long arg); 402 #endif 403 404 /* fs/inotify_user.c */ 405 asmlinkage long sys_inotify_init1(int flags); 406 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, 407 u32 mask); 408 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd); 409 410 /* fs/ioctl.c */ 411 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, 412 unsigned long arg); 413 414 /* fs/ioprio.c */ 415 asmlinkage long sys_ioprio_set(int which, int who, int ioprio); 416 asmlinkage long sys_ioprio_get(int which, int who); 417 418 /* fs/locks.c */ 419 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd); 420 421 /* fs/namei.c */ 422 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode, 423 unsigned dev); 424 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode); 425 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag); 426 asmlinkage long sys_symlinkat(const char __user * oldname, 427 int newdfd, const char __user * newname); 428 asmlinkage long sys_linkat(int olddfd, const char __user *oldname, 429 int newdfd, const char __user *newname, int flags); 430 asmlinkage long sys_renameat(int olddfd, const char __user * oldname, 431 int newdfd, const char __user * newname); 432 433 /* fs/namespace.c */ 434 asmlinkage long sys_umount(char __user *name, int flags); 435 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name, 436 char __user *type, unsigned long flags, 437 void __user *data); 438 asmlinkage long sys_pivot_root(const char __user *new_root, 439 const char __user *put_old); 440 441 /* fs/nfsctl.c */ 442 443 /* fs/open.c */ 444 asmlinkage long sys_statfs(const char __user * path, 445 struct statfs __user *buf); 446 asmlinkage long sys_statfs64(const char __user *path, size_t sz, 447 struct statfs64 __user *buf); 448 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf); 449 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz, 450 struct statfs64 __user *buf); 451 asmlinkage long sys_truncate(const char __user *path, long length); 452 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length); 453 #if BITS_PER_LONG == 32 454 asmlinkage long sys_truncate64(const char __user *path, loff_t length); 455 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length); 456 #endif 457 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len); 458 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode); 459 asmlinkage long sys_faccessat2(int dfd, const char __user *filename, int mode, 460 int flags); 461 asmlinkage long sys_chdir(const char __user *filename); 462 asmlinkage long sys_fchdir(unsigned int fd); 463 asmlinkage long sys_chroot(const char __user *filename); 464 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode); 465 asmlinkage long sys_fchmodat(int dfd, const char __user * filename, 466 umode_t mode); 467 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user, 468 gid_t group, int flag); 469 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group); 470 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags, 471 umode_t mode); 472 asmlinkage long sys_openat2(int dfd, const char __user *filename, 473 struct open_how *how, size_t size); 474 asmlinkage long sys_close(unsigned int fd); 475 asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd, 476 unsigned int flags); 477 asmlinkage long sys_vhangup(void); 478 479 /* fs/pipe.c */ 480 asmlinkage long sys_pipe2(int __user *fildes, int flags); 481 482 /* fs/quota.c */ 483 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special, 484 qid_t id, void __user *addr); 485 asmlinkage long sys_quotactl_fd(unsigned int fd, unsigned int cmd, qid_t id, 486 void __user *addr); 487 488 /* fs/readdir.c */ 489 asmlinkage long sys_getdents64(unsigned int fd, 490 struct linux_dirent64 __user *dirent, 491 unsigned int count); 492 493 /* fs/read_write.c */ 494 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high, 495 unsigned long offset_low, loff_t __user *result, 496 unsigned int whence); 497 asmlinkage long sys_lseek(unsigned int fd, off_t offset, 498 unsigned int whence); 499 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count); 500 asmlinkage long sys_write(unsigned int fd, const char __user *buf, 501 size_t count); 502 asmlinkage long sys_readv(unsigned long fd, 503 const struct iovec __user *vec, 504 unsigned long vlen); 505 asmlinkage long sys_writev(unsigned long fd, 506 const struct iovec __user *vec, 507 unsigned long vlen); 508 asmlinkage long sys_pread64(unsigned int fd, char __user *buf, 509 size_t count, loff_t pos); 510 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf, 511 size_t count, loff_t pos); 512 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec, 513 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 514 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec, 515 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 516 517 /* fs/sendfile.c */ 518 asmlinkage long sys_sendfile64(int out_fd, int in_fd, 519 loff_t __user *offset, size_t count); 520 521 /* fs/select.c */ 522 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *, 523 fd_set __user *, struct __kernel_timespec __user *, 524 void __user *); 525 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *, 526 fd_set __user *, struct old_timespec32 __user *, 527 void __user *); 528 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int, 529 struct __kernel_timespec __user *, const sigset_t __user *, 530 size_t); 531 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int, 532 struct old_timespec32 __user *, const sigset_t __user *, 533 size_t); 534 535 /* fs/signalfd.c */ 536 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags); 537 538 /* fs/splice.c */ 539 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov, 540 unsigned long nr_segs, unsigned int flags); 541 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in, 542 int fd_out, loff_t __user *off_out, 543 size_t len, unsigned int flags); 544 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags); 545 546 /* fs/stat.c */ 547 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf, 548 int bufsiz); 549 asmlinkage long sys_newfstatat(int dfd, const char __user *filename, 550 struct stat __user *statbuf, int flag); 551 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf); 552 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 553 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf); 554 asmlinkage long sys_fstatat64(int dfd, const char __user *filename, 555 struct stat64 __user *statbuf, int flag); 556 #endif 557 558 /* fs/sync.c */ 559 asmlinkage long sys_sync(void); 560 asmlinkage long sys_fsync(unsigned int fd); 561 asmlinkage long sys_fdatasync(unsigned int fd); 562 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags, 563 loff_t offset, loff_t nbytes); 564 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 565 unsigned int flags); 566 567 /* fs/timerfd.c */ 568 asmlinkage long sys_timerfd_create(int clockid, int flags); 569 asmlinkage long sys_timerfd_settime(int ufd, int flags, 570 const struct __kernel_itimerspec __user *utmr, 571 struct __kernel_itimerspec __user *otmr); 572 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr); 573 asmlinkage long sys_timerfd_gettime32(int ufd, 574 struct old_itimerspec32 __user *otmr); 575 asmlinkage long sys_timerfd_settime32(int ufd, int flags, 576 const struct old_itimerspec32 __user *utmr, 577 struct old_itimerspec32 __user *otmr); 578 579 /* fs/utimes.c */ 580 asmlinkage long sys_utimensat(int dfd, const char __user *filename, 581 struct __kernel_timespec __user *utimes, 582 int flags); 583 asmlinkage long sys_utimensat_time32(unsigned int dfd, 584 const char __user *filename, 585 struct old_timespec32 __user *t, int flags); 586 587 /* kernel/acct.c */ 588 asmlinkage long sys_acct(const char __user *name); 589 590 /* kernel/capability.c */ 591 asmlinkage long sys_capget(cap_user_header_t header, 592 cap_user_data_t dataptr); 593 asmlinkage long sys_capset(cap_user_header_t header, 594 const cap_user_data_t data); 595 596 /* kernel/exec_domain.c */ 597 asmlinkage long sys_personality(unsigned int personality); 598 599 /* kernel/exit.c */ 600 asmlinkage long sys_exit(int error_code); 601 asmlinkage long sys_exit_group(int error_code); 602 asmlinkage long sys_waitid(int which, pid_t pid, 603 struct siginfo __user *infop, 604 int options, struct rusage __user *ru); 605 606 /* kernel/fork.c */ 607 asmlinkage long sys_set_tid_address(int __user *tidptr); 608 asmlinkage long sys_unshare(unsigned long unshare_flags); 609 610 /* kernel/futex/syscalls.c */ 611 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val, 612 const struct __kernel_timespec __user *utime, 613 u32 __user *uaddr2, u32 val3); 614 asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val, 615 const struct old_timespec32 __user *utime, 616 u32 __user *uaddr2, u32 val3); 617 asmlinkage long sys_get_robust_list(int pid, 618 struct robust_list_head __user * __user *head_ptr, 619 size_t __user *len_ptr); 620 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, 621 size_t len); 622 623 asmlinkage long sys_futex_waitv(struct futex_waitv *waiters, 624 unsigned int nr_futexes, unsigned int flags, 625 struct __kernel_timespec __user *timeout, clockid_t clockid); 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 asmlinkage long sys_set_mempolicy_home_node(unsigned long start, unsigned long len, 1057 unsigned long home_node, 1058 unsigned long flags); 1059 1060 /* 1061 * Architecture-specific system calls 1062 */ 1063 1064 /* arch/x86/kernel/ioport.c */ 1065 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); 1066 1067 /* pciconfig: alpha, arm, arm64, ia64, sparc */ 1068 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn, 1069 unsigned long off, unsigned long len, 1070 void __user *buf); 1071 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn, 1072 unsigned long off, unsigned long len, 1073 void __user *buf); 1074 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn); 1075 1076 /* powerpc */ 1077 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc, 1078 __u32 __user *ustatus); 1079 asmlinkage long sys_spu_create(const char __user *name, 1080 unsigned int flags, umode_t mode, int fd); 1081 1082 1083 /* 1084 * Deprecated system calls which are still defined in 1085 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch 1086 */ 1087 1088 /* __ARCH_WANT_SYSCALL_NO_AT */ 1089 asmlinkage long sys_open(const char __user *filename, 1090 int flags, umode_t mode); 1091 asmlinkage long sys_link(const char __user *oldname, 1092 const char __user *newname); 1093 asmlinkage long sys_unlink(const char __user *pathname); 1094 asmlinkage long sys_mknod(const char __user *filename, umode_t mode, 1095 unsigned dev); 1096 asmlinkage long sys_chmod(const char __user *filename, umode_t mode); 1097 asmlinkage long sys_chown(const char __user *filename, 1098 uid_t user, gid_t group); 1099 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode); 1100 asmlinkage long sys_rmdir(const char __user *pathname); 1101 asmlinkage long sys_lchown(const char __user *filename, 1102 uid_t user, gid_t group); 1103 asmlinkage long sys_access(const char __user *filename, int mode); 1104 asmlinkage long sys_rename(const char __user *oldname, 1105 const char __user *newname); 1106 asmlinkage long sys_symlink(const char __user *old, const char __user *new); 1107 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 1108 asmlinkage long sys_stat64(const char __user *filename, 1109 struct stat64 __user *statbuf); 1110 asmlinkage long sys_lstat64(const char __user *filename, 1111 struct stat64 __user *statbuf); 1112 #endif 1113 1114 /* __ARCH_WANT_SYSCALL_NO_FLAGS */ 1115 asmlinkage long sys_pipe(int __user *fildes); 1116 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd); 1117 asmlinkage long sys_epoll_create(int size); 1118 asmlinkage long sys_inotify_init(void); 1119 asmlinkage long sys_eventfd(unsigned int count); 1120 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask); 1121 1122 /* __ARCH_WANT_SYSCALL_OFF_T */ 1123 asmlinkage long sys_sendfile(int out_fd, int in_fd, 1124 off_t __user *offset, size_t count); 1125 asmlinkage long sys_newstat(const char __user *filename, 1126 struct stat __user *statbuf); 1127 asmlinkage long sys_newlstat(const char __user *filename, 1128 struct stat __user *statbuf); 1129 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice); 1130 1131 /* __ARCH_WANT_SYSCALL_DEPRECATED */ 1132 asmlinkage long sys_alarm(unsigned int seconds); 1133 asmlinkage long sys_getpgrp(void); 1134 asmlinkage long sys_pause(void); 1135 asmlinkage long sys_time(__kernel_old_time_t __user *tloc); 1136 asmlinkage long sys_time32(old_time32_t __user *tloc); 1137 #ifdef __ARCH_WANT_SYS_UTIME 1138 asmlinkage long sys_utime(char __user *filename, 1139 struct utimbuf __user *times); 1140 asmlinkage long sys_utimes(char __user *filename, 1141 struct __kernel_old_timeval __user *utimes); 1142 asmlinkage long sys_futimesat(int dfd, const char __user *filename, 1143 struct __kernel_old_timeval __user *utimes); 1144 #endif 1145 asmlinkage long sys_futimesat_time32(unsigned int dfd, 1146 const char __user *filename, 1147 struct old_timeval32 __user *t); 1148 asmlinkage long sys_utime32(const char __user *filename, 1149 struct old_utimbuf32 __user *t); 1150 asmlinkage long sys_utimes_time32(const char __user *filename, 1151 struct old_timeval32 __user *t); 1152 asmlinkage long sys_creat(const char __user *pathname, umode_t mode); 1153 asmlinkage long sys_getdents(unsigned int fd, 1154 struct linux_dirent __user *dirent, 1155 unsigned int count); 1156 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp, 1157 fd_set __user *exp, struct __kernel_old_timeval __user *tvp); 1158 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds, 1159 int timeout); 1160 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, 1161 int maxevents, int timeout); 1162 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf); 1163 asmlinkage long sys_vfork(void); 1164 asmlinkage long sys_recv(int, void __user *, size_t, unsigned); 1165 asmlinkage long sys_send(int, void __user *, size_t, unsigned); 1166 asmlinkage long sys_oldumount(char __user *name); 1167 asmlinkage long sys_uselib(const char __user *library); 1168 asmlinkage long sys_sysfs(int option, 1169 unsigned long arg1, unsigned long arg2); 1170 asmlinkage long sys_fork(void); 1171 1172 /* obsolete: kernel/time/time.c */ 1173 asmlinkage long sys_stime(__kernel_old_time_t __user *tptr); 1174 asmlinkage long sys_stime32(old_time32_t __user *tptr); 1175 1176 /* obsolete: kernel/signal.c */ 1177 asmlinkage long sys_sigpending(old_sigset_t __user *uset); 1178 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set, 1179 old_sigset_t __user *oset); 1180 #ifdef CONFIG_OLD_SIGSUSPEND 1181 asmlinkage long sys_sigsuspend(old_sigset_t mask); 1182 #endif 1183 1184 #ifdef CONFIG_OLD_SIGSUSPEND3 1185 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask); 1186 #endif 1187 1188 #ifdef CONFIG_OLD_SIGACTION 1189 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *, 1190 struct old_sigaction __user *); 1191 #endif 1192 asmlinkage long sys_sgetmask(void); 1193 asmlinkage long sys_ssetmask(int newmask); 1194 asmlinkage long sys_signal(int sig, __sighandler_t handler); 1195 1196 /* obsolete: kernel/sched/core.c */ 1197 asmlinkage long sys_nice(int increment); 1198 1199 /* obsolete: kernel/kexec_file.c */ 1200 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd, 1201 unsigned long cmdline_len, 1202 const char __user *cmdline_ptr, 1203 unsigned long flags); 1204 1205 /* obsolete: kernel/exit.c */ 1206 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options); 1207 1208 /* obsolete: kernel/uid16.c */ 1209 #ifdef CONFIG_HAVE_UID16 1210 asmlinkage long sys_chown16(const char __user *filename, 1211 old_uid_t user, old_gid_t group); 1212 asmlinkage long sys_lchown16(const char __user *filename, 1213 old_uid_t user, old_gid_t group); 1214 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group); 1215 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid); 1216 asmlinkage long sys_setgid16(old_gid_t gid); 1217 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid); 1218 asmlinkage long sys_setuid16(old_uid_t uid); 1219 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid); 1220 asmlinkage long sys_getresuid16(old_uid_t __user *ruid, 1221 old_uid_t __user *euid, old_uid_t __user *suid); 1222 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid); 1223 asmlinkage long sys_getresgid16(old_gid_t __user *rgid, 1224 old_gid_t __user *egid, old_gid_t __user *sgid); 1225 asmlinkage long sys_setfsuid16(old_uid_t uid); 1226 asmlinkage long sys_setfsgid16(old_gid_t gid); 1227 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist); 1228 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist); 1229 asmlinkage long sys_getuid16(void); 1230 asmlinkage long sys_geteuid16(void); 1231 asmlinkage long sys_getgid16(void); 1232 asmlinkage long sys_getegid16(void); 1233 #endif 1234 1235 /* obsolete: net/socket.c */ 1236 asmlinkage long sys_socketcall(int call, unsigned long __user *args); 1237 1238 /* obsolete: fs/stat.c */ 1239 asmlinkage long sys_stat(const char __user *filename, 1240 struct __old_kernel_stat __user *statbuf); 1241 asmlinkage long sys_lstat(const char __user *filename, 1242 struct __old_kernel_stat __user *statbuf); 1243 asmlinkage long sys_fstat(unsigned int fd, 1244 struct __old_kernel_stat __user *statbuf); 1245 asmlinkage long sys_readlink(const char __user *path, 1246 char __user *buf, int bufsiz); 1247 1248 /* obsolete: fs/select.c */ 1249 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg); 1250 1251 /* obsolete: fs/readdir.c */ 1252 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int); 1253 1254 /* obsolete: kernel/sys.c */ 1255 asmlinkage long sys_gethostname(char __user *name, int len); 1256 asmlinkage long sys_uname(struct old_utsname __user *); 1257 asmlinkage long sys_olduname(struct oldold_utsname __user *); 1258 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT 1259 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim); 1260 #endif 1261 1262 /* obsolete: ipc */ 1263 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second, 1264 unsigned long third, void __user *ptr, long fifth); 1265 1266 /* obsolete: mm/ */ 1267 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len, 1268 unsigned long prot, unsigned long flags, 1269 unsigned long fd, unsigned long pgoff); 1270 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg); 1271 1272 1273 /* 1274 * Not a real system call, but a placeholder for syscalls which are 1275 * not implemented -- see kernel/sys_ni.c 1276 */ 1277 asmlinkage long sys_ni_syscall(void); 1278 1279 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 1280 1281 1282 /* 1283 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly. 1284 * Instead, use one of the functions which work equivalently, such as 1285 * the ksys_xyzyyz() functions prototyped below. 1286 */ 1287 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count); 1288 int ksys_fchown(unsigned int fd, uid_t user, gid_t group); 1289 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count); 1290 void ksys_sync(void); 1291 int ksys_unshare(unsigned long unshare_flags); 1292 int ksys_setsid(void); 1293 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 1294 unsigned int flags); 1295 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count, 1296 loff_t pos); 1297 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf, 1298 size_t count, loff_t pos); 1299 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len); 1300 #ifdef CONFIG_ADVISE_SYSCALLS 1301 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 1302 #else 1303 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, 1304 int advice) 1305 { 1306 return -EINVAL; 1307 } 1308 #endif 1309 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len, 1310 unsigned long prot, unsigned long flags, 1311 unsigned long fd, unsigned long pgoff); 1312 ssize_t ksys_readahead(int fd, loff_t offset, size_t count); 1313 int ksys_ipc(unsigned int call, int first, unsigned long second, 1314 unsigned long third, void __user * ptr, long fifth); 1315 int compat_ksys_ipc(u32 call, int first, int second, 1316 u32 third, u32 ptr, u32 fifth); 1317 1318 /* 1319 * The following kernel syscall equivalents are just wrappers to fs-internal 1320 * functions. Therefore, provide stubs to be inlined at the callsites. 1321 */ 1322 extern int do_fchownat(int dfd, const char __user *filename, uid_t user, 1323 gid_t group, int flag); 1324 1325 static inline long ksys_chown(const char __user *filename, uid_t user, 1326 gid_t group) 1327 { 1328 return do_fchownat(AT_FDCWD, filename, user, group, 0); 1329 } 1330 1331 static inline long ksys_lchown(const char __user *filename, uid_t user, 1332 gid_t group) 1333 { 1334 return do_fchownat(AT_FDCWD, filename, user, group, 1335 AT_SYMLINK_NOFOLLOW); 1336 } 1337 1338 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small); 1339 1340 static inline long ksys_ftruncate(unsigned int fd, loff_t length) 1341 { 1342 return do_sys_ftruncate(fd, length, 1); 1343 } 1344 1345 extern long do_sys_truncate(const char __user *pathname, loff_t length); 1346 1347 static inline long ksys_truncate(const char __user *pathname, loff_t length) 1348 { 1349 return do_sys_truncate(pathname, length); 1350 } 1351 1352 static inline unsigned int ksys_personality(unsigned int personality) 1353 { 1354 unsigned int old = current->personality; 1355 1356 if (personality != 0xffffffff) 1357 set_personality(personality); 1358 1359 return old; 1360 } 1361 1362 /* for __ARCH_WANT_SYS_IPC */ 1363 long ksys_semtimedop(int semid, struct sembuf __user *tsops, 1364 unsigned int nsops, 1365 const struct __kernel_timespec __user *timeout); 1366 long ksys_semget(key_t key, int nsems, int semflg); 1367 long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg); 1368 long ksys_msgget(key_t key, int msgflg); 1369 long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 1370 long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz, 1371 long msgtyp, int msgflg); 1372 long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz, 1373 int msgflg); 1374 long ksys_shmget(key_t key, size_t size, int shmflg); 1375 long ksys_shmdt(char __user *shmaddr); 1376 long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 1377 long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems, 1378 unsigned int nsops, 1379 const struct old_timespec32 __user *timeout); 1380 long __do_semtimedop(int semid, struct sembuf *tsems, unsigned int nsops, 1381 const struct timespec64 *timeout, 1382 struct ipc_namespace *ns); 1383 1384 int __sys_getsockopt(int fd, int level, int optname, char __user *optval, 1385 int __user *optlen); 1386 int __sys_setsockopt(int fd, int level, int optname, char __user *optval, 1387 int optlen); 1388 #endif 1389