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