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