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