1 /* 2 * syscalls.h - Linux syscall interfaces (non-arch-specific) 3 * 4 * Copyright (c) 2004 Randy Dunlap 5 * Copyright (c) 2004 Open Source Development Labs 6 * 7 * This file is released under the GPLv2. 8 * See the file COPYING for more details. 9 */ 10 11 #ifndef _LINUX_SYSCALLS_H 12 #define _LINUX_SYSCALLS_H 13 14 struct __aio_sigset; 15 struct epoll_event; 16 struct iattr; 17 struct inode; 18 struct iocb; 19 struct io_event; 20 struct iovec; 21 struct itimerspec; 22 struct itimerval; 23 struct kexec_segment; 24 struct linux_dirent; 25 struct linux_dirent64; 26 struct list_head; 27 struct mmap_arg_struct; 28 struct msgbuf; 29 struct user_msghdr; 30 struct mmsghdr; 31 struct msqid_ds; 32 struct new_utsname; 33 struct nfsctl_arg; 34 struct __old_kernel_stat; 35 struct oldold_utsname; 36 struct old_utsname; 37 struct pollfd; 38 struct rlimit; 39 struct rlimit64; 40 struct rusage; 41 struct sched_param; 42 struct sched_attr; 43 struct sel_arg_struct; 44 struct semaphore; 45 struct sembuf; 46 struct shmid_ds; 47 struct sockaddr; 48 struct stat; 49 struct stat64; 50 struct statfs; 51 struct statfs64; 52 struct statx; 53 struct __sysctl_args; 54 struct sysinfo; 55 struct timespec; 56 struct timeval; 57 struct timex; 58 struct timezone; 59 struct tms; 60 struct utimbuf; 61 struct mq_attr; 62 struct compat_stat; 63 struct compat_timeval; 64 struct robust_list_head; 65 struct getcpu_cache; 66 struct old_linux_dirent; 67 struct perf_event_attr; 68 struct file_handle; 69 struct sigaltstack; 70 struct rseq; 71 union bpf_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 <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 __attribute__((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 __attribute__((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 __attribute__((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 /* 255 * Called before coming back to user-mode. Returning to user-mode with an 256 * address limit different than USER_DS can allow to overwrite kernel memory. 257 */ 258 static inline void addr_limit_user_check(void) 259 { 260 #ifdef TIF_FSCHECK 261 if (!test_thread_flag(TIF_FSCHECK)) 262 return; 263 #endif 264 265 if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS), 266 "Invalid address limit on user-mode return")) 267 force_sig(SIGKILL, current); 268 269 #ifdef TIF_FSCHECK 270 clear_thread_flag(TIF_FSCHECK); 271 #endif 272 } 273 274 /* 275 * These syscall function prototypes are kept in the same order as 276 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below, 277 * followed by deprecated or obsolete system calls. 278 * 279 * Please note that these prototypes here are only provided for information 280 * purposes, for static analysis, and for linking from the syscall table. 281 * These functions should not be called elsewhere from kernel code. 282 * 283 * As the syscall calling convention may be different from the default 284 * for architectures overriding the syscall calling convention, do not 285 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 286 */ 287 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 288 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx); 289 asmlinkage long sys_io_destroy(aio_context_t ctx); 290 asmlinkage long sys_io_submit(aio_context_t, long, 291 struct iocb __user * __user *); 292 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb, 293 struct io_event __user *result); 294 asmlinkage long sys_io_getevents(aio_context_t ctx_id, 295 long min_nr, 296 long nr, 297 struct io_event __user *events, 298 struct timespec __user *timeout); 299 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id, 300 long min_nr, 301 long nr, 302 struct io_event __user *events, 303 struct timespec __user *timeout, 304 const struct __aio_sigset *sig); 305 306 /* fs/xattr.c */ 307 asmlinkage long sys_setxattr(const char __user *path, const char __user *name, 308 const void __user *value, size_t size, int flags); 309 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name, 310 const void __user *value, size_t size, int flags); 311 asmlinkage long sys_fsetxattr(int fd, const char __user *name, 312 const void __user *value, size_t size, int flags); 313 asmlinkage long sys_getxattr(const char __user *path, const char __user *name, 314 void __user *value, size_t size); 315 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name, 316 void __user *value, size_t size); 317 asmlinkage long sys_fgetxattr(int fd, const char __user *name, 318 void __user *value, size_t size); 319 asmlinkage long sys_listxattr(const char __user *path, char __user *list, 320 size_t size); 321 asmlinkage long sys_llistxattr(const char __user *path, char __user *list, 322 size_t size); 323 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size); 324 asmlinkage long sys_removexattr(const char __user *path, 325 const char __user *name); 326 asmlinkage long sys_lremovexattr(const char __user *path, 327 const char __user *name); 328 asmlinkage long sys_fremovexattr(int fd, const char __user *name); 329 330 /* fs/dcache.c */ 331 asmlinkage long sys_getcwd(char __user *buf, unsigned long size); 332 333 /* fs/cookies.c */ 334 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len); 335 336 /* fs/eventfd.c */ 337 asmlinkage long sys_eventfd2(unsigned int count, int flags); 338 339 /* fs/eventpoll.c */ 340 asmlinkage long sys_epoll_create1(int flags); 341 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, 342 struct epoll_event __user *event); 343 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events, 344 int maxevents, int timeout, 345 const sigset_t __user *sigmask, 346 size_t sigsetsize); 347 348 /* fs/fcntl.c */ 349 asmlinkage long sys_dup(unsigned int fildes); 350 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags); 351 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); 352 #if BITS_PER_LONG == 32 353 asmlinkage long sys_fcntl64(unsigned int fd, 354 unsigned int cmd, unsigned long arg); 355 #endif 356 357 /* fs/inotify_user.c */ 358 asmlinkage long sys_inotify_init1(int flags); 359 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, 360 u32 mask); 361 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd); 362 363 /* fs/ioctl.c */ 364 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, 365 unsigned long arg); 366 367 /* fs/ioprio.c */ 368 asmlinkage long sys_ioprio_set(int which, int who, int ioprio); 369 asmlinkage long sys_ioprio_get(int which, int who); 370 371 /* fs/locks.c */ 372 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd); 373 374 /* fs/namei.c */ 375 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode, 376 unsigned dev); 377 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode); 378 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag); 379 asmlinkage long sys_symlinkat(const char __user * oldname, 380 int newdfd, const char __user * newname); 381 asmlinkage long sys_linkat(int olddfd, const char __user *oldname, 382 int newdfd, const char __user *newname, int flags); 383 asmlinkage long sys_renameat(int olddfd, const char __user * oldname, 384 int newdfd, const char __user * newname); 385 386 /* fs/namespace.c */ 387 asmlinkage long sys_umount(char __user *name, int flags); 388 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name, 389 char __user *type, unsigned long flags, 390 void __user *data); 391 asmlinkage long sys_pivot_root(const char __user *new_root, 392 const char __user *put_old); 393 394 /* fs/nfsctl.c */ 395 396 /* fs/open.c */ 397 asmlinkage long sys_statfs(const char __user * path, 398 struct statfs __user *buf); 399 asmlinkage long sys_statfs64(const char __user *path, size_t sz, 400 struct statfs64 __user *buf); 401 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf); 402 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz, 403 struct statfs64 __user *buf); 404 asmlinkage long sys_truncate(const char __user *path, long length); 405 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length); 406 #if BITS_PER_LONG == 32 407 asmlinkage long sys_truncate64(const char __user *path, loff_t length); 408 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length); 409 #endif 410 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len); 411 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode); 412 asmlinkage long sys_chdir(const char __user *filename); 413 asmlinkage long sys_fchdir(unsigned int fd); 414 asmlinkage long sys_chroot(const char __user *filename); 415 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode); 416 asmlinkage long sys_fchmodat(int dfd, const char __user * filename, 417 umode_t mode); 418 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user, 419 gid_t group, int flag); 420 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group); 421 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags, 422 umode_t mode); 423 asmlinkage long sys_close(unsigned int fd); 424 asmlinkage long sys_vhangup(void); 425 426 /* fs/pipe.c */ 427 asmlinkage long sys_pipe2(int __user *fildes, int flags); 428 429 /* fs/quota.c */ 430 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special, 431 qid_t id, void __user *addr); 432 433 /* fs/readdir.c */ 434 asmlinkage long sys_getdents64(unsigned int fd, 435 struct linux_dirent64 __user *dirent, 436 unsigned int count); 437 438 /* fs/read_write.c */ 439 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high, 440 unsigned long offset_low, loff_t __user *result, 441 unsigned int whence); 442 asmlinkage long sys_lseek(unsigned int fd, off_t offset, 443 unsigned int whence); 444 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count); 445 asmlinkage long sys_write(unsigned int fd, const char __user *buf, 446 size_t count); 447 asmlinkage long sys_readv(unsigned long fd, 448 const struct iovec __user *vec, 449 unsigned long vlen); 450 asmlinkage long sys_writev(unsigned long fd, 451 const struct iovec __user *vec, 452 unsigned long vlen); 453 asmlinkage long sys_pread64(unsigned int fd, char __user *buf, 454 size_t count, loff_t pos); 455 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf, 456 size_t count, loff_t pos); 457 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec, 458 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 459 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec, 460 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 461 462 /* fs/sendfile.c */ 463 asmlinkage long sys_sendfile64(int out_fd, int in_fd, 464 loff_t __user *offset, size_t count); 465 466 /* fs/select.c */ 467 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *, 468 fd_set __user *, struct timespec __user *, 469 void __user *); 470 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int, 471 struct timespec __user *, const sigset_t __user *, 472 size_t); 473 474 /* fs/signalfd.c */ 475 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags); 476 477 /* fs/splice.c */ 478 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov, 479 unsigned long nr_segs, unsigned int flags); 480 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in, 481 int fd_out, loff_t __user *off_out, 482 size_t len, unsigned int flags); 483 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags); 484 485 /* fs/stat.c */ 486 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf, 487 int bufsiz); 488 asmlinkage long sys_newfstatat(int dfd, const char __user *filename, 489 struct stat __user *statbuf, int flag); 490 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf); 491 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 492 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf); 493 asmlinkage long sys_fstatat64(int dfd, const char __user *filename, 494 struct stat64 __user *statbuf, int flag); 495 #endif 496 497 /* fs/sync.c */ 498 asmlinkage long sys_sync(void); 499 asmlinkage long sys_fsync(unsigned int fd); 500 asmlinkage long sys_fdatasync(unsigned int fd); 501 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags, 502 loff_t offset, loff_t nbytes); 503 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 504 unsigned int flags); 505 506 /* fs/timerfd.c */ 507 asmlinkage long sys_timerfd_create(int clockid, int flags); 508 asmlinkage long sys_timerfd_settime(int ufd, int flags, 509 const struct itimerspec __user *utmr, 510 struct itimerspec __user *otmr); 511 asmlinkage long sys_timerfd_gettime(int ufd, struct itimerspec __user *otmr); 512 513 /* fs/utimes.c */ 514 asmlinkage long sys_utimensat(int dfd, const char __user *filename, 515 struct timespec __user *utimes, int flags); 516 517 /* kernel/acct.c */ 518 asmlinkage long sys_acct(const char __user *name); 519 520 /* kernel/capability.c */ 521 asmlinkage long sys_capget(cap_user_header_t header, 522 cap_user_data_t dataptr); 523 asmlinkage long sys_capset(cap_user_header_t header, 524 const cap_user_data_t data); 525 526 /* kernel/exec_domain.c */ 527 asmlinkage long sys_personality(unsigned int personality); 528 529 /* kernel/exit.c */ 530 asmlinkage long sys_exit(int error_code); 531 asmlinkage long sys_exit_group(int error_code); 532 asmlinkage long sys_waitid(int which, pid_t pid, 533 struct siginfo __user *infop, 534 int options, struct rusage __user *ru); 535 536 /* kernel/fork.c */ 537 asmlinkage long sys_set_tid_address(int __user *tidptr); 538 asmlinkage long sys_unshare(unsigned long unshare_flags); 539 540 /* kernel/futex.c */ 541 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val, 542 struct timespec __user *utime, u32 __user *uaddr2, 543 u32 val3); 544 asmlinkage long sys_get_robust_list(int pid, 545 struct robust_list_head __user * __user *head_ptr, 546 size_t __user *len_ptr); 547 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, 548 size_t len); 549 550 /* kernel/hrtimer.c */ 551 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp, 552 struct __kernel_timespec __user *rmtp); 553 554 /* kernel/itimer.c */ 555 asmlinkage long sys_getitimer(int which, struct itimerval __user *value); 556 asmlinkage long sys_setitimer(int which, 557 struct itimerval __user *value, 558 struct itimerval __user *ovalue); 559 560 /* kernel/kexec.c */ 561 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments, 562 struct kexec_segment __user *segments, 563 unsigned long flags); 564 565 /* kernel/module.c */ 566 asmlinkage long sys_init_module(void __user *umod, unsigned long len, 567 const char __user *uargs); 568 asmlinkage long sys_delete_module(const char __user *name_user, 569 unsigned int flags); 570 571 /* kernel/posix-timers.c */ 572 asmlinkage long sys_timer_create(clockid_t which_clock, 573 struct sigevent __user *timer_event_spec, 574 timer_t __user * created_timer_id); 575 asmlinkage long sys_timer_gettime(timer_t timer_id, 576 struct itimerspec __user *setting); 577 asmlinkage long sys_timer_getoverrun(timer_t timer_id); 578 asmlinkage long sys_timer_settime(timer_t timer_id, int flags, 579 const struct itimerspec __user *new_setting, 580 struct itimerspec __user *old_setting); 581 asmlinkage long sys_timer_delete(timer_t timer_id); 582 asmlinkage long sys_clock_settime(clockid_t which_clock, 583 const struct __kernel_timespec __user *tp); 584 asmlinkage long sys_clock_gettime(clockid_t which_clock, 585 struct __kernel_timespec __user *tp); 586 asmlinkage long sys_clock_getres(clockid_t which_clock, 587 struct __kernel_timespec __user *tp); 588 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags, 589 const struct __kernel_timespec __user *rqtp, 590 struct __kernel_timespec __user *rmtp); 591 592 /* kernel/printk.c */ 593 asmlinkage long sys_syslog(int type, char __user *buf, int len); 594 595 /* kernel/ptrace.c */ 596 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, 597 unsigned long data); 598 /* kernel/sched/core.c */ 599 600 asmlinkage long sys_sched_setparam(pid_t pid, 601 struct sched_param __user *param); 602 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy, 603 struct sched_param __user *param); 604 asmlinkage long sys_sched_getscheduler(pid_t pid); 605 asmlinkage long sys_sched_getparam(pid_t pid, 606 struct sched_param __user *param); 607 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len, 608 unsigned long __user *user_mask_ptr); 609 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len, 610 unsigned long __user *user_mask_ptr); 611 asmlinkage long sys_sched_yield(void); 612 asmlinkage long sys_sched_get_priority_max(int policy); 613 asmlinkage long sys_sched_get_priority_min(int policy); 614 asmlinkage long sys_sched_rr_get_interval(pid_t pid, 615 struct timespec __user *interval); 616 617 /* kernel/signal.c */ 618 asmlinkage long sys_restart_syscall(void); 619 asmlinkage long sys_kill(pid_t pid, int sig); 620 asmlinkage long sys_tkill(pid_t pid, int sig); 621 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig); 622 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss, 623 struct sigaltstack __user *uoss); 624 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize); 625 #ifndef CONFIG_ODD_RT_SIGACTION 626 asmlinkage long sys_rt_sigaction(int, 627 const struct sigaction __user *, 628 struct sigaction __user *, 629 size_t); 630 #endif 631 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set, 632 sigset_t __user *oset, size_t sigsetsize); 633 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize); 634 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese, 635 siginfo_t __user *uinfo, 636 const struct timespec __user *uts, 637 size_t sigsetsize); 638 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo); 639 640 /* kernel/sys.c */ 641 asmlinkage long sys_setpriority(int which, int who, int niceval); 642 asmlinkage long sys_getpriority(int which, int who); 643 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, 644 void __user *arg); 645 asmlinkage long sys_setregid(gid_t rgid, gid_t egid); 646 asmlinkage long sys_setgid(gid_t gid); 647 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid); 648 asmlinkage long sys_setuid(uid_t uid); 649 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid); 650 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid); 651 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid); 652 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid); 653 asmlinkage long sys_setfsuid(uid_t uid); 654 asmlinkage long sys_setfsgid(gid_t gid); 655 asmlinkage long sys_times(struct tms __user *tbuf); 656 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid); 657 asmlinkage long sys_getpgid(pid_t pid); 658 asmlinkage long sys_getsid(pid_t pid); 659 asmlinkage long sys_setsid(void); 660 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist); 661 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist); 662 asmlinkage long sys_newuname(struct new_utsname __user *name); 663 asmlinkage long sys_sethostname(char __user *name, int len); 664 asmlinkage long sys_setdomainname(char __user *name, int len); 665 asmlinkage long sys_getrlimit(unsigned int resource, 666 struct rlimit __user *rlim); 667 asmlinkage long sys_setrlimit(unsigned int resource, 668 struct rlimit __user *rlim); 669 asmlinkage long sys_getrusage(int who, struct rusage __user *ru); 670 asmlinkage long sys_umask(int mask); 671 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, 672 unsigned long arg4, unsigned long arg5); 673 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache); 674 675 /* kernel/time.c */ 676 asmlinkage long sys_gettimeofday(struct timeval __user *tv, 677 struct timezone __user *tz); 678 asmlinkage long sys_settimeofday(struct timeval __user *tv, 679 struct timezone __user *tz); 680 asmlinkage long sys_adjtimex(struct timex __user *txc_p); 681 682 /* kernel/timer.c */ 683 asmlinkage long sys_getpid(void); 684 asmlinkage long sys_getppid(void); 685 asmlinkage long sys_getuid(void); 686 asmlinkage long sys_geteuid(void); 687 asmlinkage long sys_getgid(void); 688 asmlinkage long sys_getegid(void); 689 asmlinkage long sys_gettid(void); 690 asmlinkage long sys_sysinfo(struct sysinfo __user *info); 691 692 /* ipc/mqueue.c */ 693 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr); 694 asmlinkage long sys_mq_unlink(const char __user *name); 695 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); 696 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); 697 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification); 698 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat); 699 700 /* ipc/msg.c */ 701 asmlinkage long sys_msgget(key_t key, int msgflg); 702 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 703 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp, 704 size_t msgsz, long msgtyp, int msgflg); 705 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp, 706 size_t msgsz, int msgflg); 707 708 /* ipc/sem.c */ 709 asmlinkage long sys_semget(key_t key, int nsems, int semflg); 710 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg); 711 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops, 712 unsigned nsops, 713 const struct __kernel_timespec __user *timeout); 714 asmlinkage long sys_semop(int semid, struct sembuf __user *sops, 715 unsigned nsops); 716 717 /* ipc/shm.c */ 718 asmlinkage long sys_shmget(key_t key, size_t size, int flag); 719 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 720 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg); 721 asmlinkage long sys_shmdt(char __user *shmaddr); 722 723 /* net/socket.c */ 724 asmlinkage long sys_socket(int, int, int); 725 asmlinkage long sys_socketpair(int, int, int, int __user *); 726 asmlinkage long sys_bind(int, struct sockaddr __user *, int); 727 asmlinkage long sys_listen(int, int); 728 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *); 729 asmlinkage long sys_connect(int, struct sockaddr __user *, int); 730 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *); 731 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *); 732 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned, 733 struct sockaddr __user *, int); 734 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned, 735 struct sockaddr __user *, int __user *); 736 asmlinkage long sys_setsockopt(int fd, int level, int optname, 737 char __user *optval, int optlen); 738 asmlinkage long sys_getsockopt(int fd, int level, int optname, 739 char __user *optval, int __user *optlen); 740 asmlinkage long sys_shutdown(int, int); 741 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 742 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 743 744 /* mm/filemap.c */ 745 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count); 746 747 /* mm/nommu.c, also with MMU */ 748 asmlinkage long sys_brk(unsigned long brk); 749 asmlinkage long sys_munmap(unsigned long addr, size_t len); 750 asmlinkage long sys_mremap(unsigned long addr, 751 unsigned long old_len, unsigned long new_len, 752 unsigned long flags, unsigned long new_addr); 753 754 /* security/keys/keyctl.c */ 755 asmlinkage long sys_add_key(const char __user *_type, 756 const char __user *_description, 757 const void __user *_payload, 758 size_t plen, 759 key_serial_t destringid); 760 asmlinkage long sys_request_key(const char __user *_type, 761 const char __user *_description, 762 const char __user *_callout_info, 763 key_serial_t destringid); 764 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3, 765 unsigned long arg4, unsigned long arg5); 766 767 /* arch/example/kernel/sys_example.c */ 768 #ifdef CONFIG_CLONE_BACKWARDS 769 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long, 770 int __user *); 771 #else 772 #ifdef CONFIG_CLONE_BACKWARDS3 773 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *, 774 int __user *, unsigned long); 775 #else 776 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, 777 int __user *, unsigned long); 778 #endif 779 #endif 780 asmlinkage long sys_execve(const char __user *filename, 781 const char __user *const __user *argv, 782 const char __user *const __user *envp); 783 784 /* mm/fadvise.c */ 785 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 786 787 /* mm/, CONFIG_MMU only */ 788 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags); 789 asmlinkage long sys_swapoff(const char __user *specialfile); 790 asmlinkage long sys_mprotect(unsigned long start, size_t len, 791 unsigned long prot); 792 asmlinkage long sys_msync(unsigned long start, size_t len, int flags); 793 asmlinkage long sys_mlock(unsigned long start, size_t len); 794 asmlinkage long sys_munlock(unsigned long start, size_t len); 795 asmlinkage long sys_mlockall(int flags); 796 asmlinkage long sys_munlockall(void); 797 asmlinkage long sys_mincore(unsigned long start, size_t len, 798 unsigned char __user * vec); 799 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior); 800 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, 801 unsigned long prot, unsigned long pgoff, 802 unsigned long flags); 803 asmlinkage long sys_mbind(unsigned long start, unsigned long len, 804 unsigned long mode, 805 const unsigned long __user *nmask, 806 unsigned long maxnode, 807 unsigned flags); 808 asmlinkage long sys_get_mempolicy(int __user *policy, 809 unsigned long __user *nmask, 810 unsigned long maxnode, 811 unsigned long addr, unsigned long flags); 812 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask, 813 unsigned long maxnode); 814 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode, 815 const unsigned long __user *from, 816 const unsigned long __user *to); 817 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages, 818 const void __user * __user *pages, 819 const int __user *nodes, 820 int __user *status, 821 int flags); 822 823 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, 824 siginfo_t __user *uinfo); 825 asmlinkage long sys_perf_event_open( 826 struct perf_event_attr __user *attr_uptr, 827 pid_t pid, int cpu, int group_fd, unsigned long flags); 828 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int); 829 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg, 830 unsigned int vlen, unsigned flags, 831 struct timespec __user *timeout); 832 833 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr, 834 int options, struct rusage __user *ru); 835 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource, 836 const struct rlimit64 __user *new_rlim, 837 struct rlimit64 __user *old_rlim); 838 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags); 839 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags, 840 u64 mask, int fd, 841 const char __user *pathname); 842 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name, 843 struct file_handle __user *handle, 844 int __user *mnt_id, int flag); 845 asmlinkage long sys_open_by_handle_at(int mountdirfd, 846 struct file_handle __user *handle, 847 int flags); 848 asmlinkage long sys_clock_adjtime(clockid_t which_clock, 849 struct timex __user *tx); 850 asmlinkage long sys_syncfs(int fd); 851 asmlinkage long sys_setns(int fd, int nstype); 852 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg, 853 unsigned int vlen, unsigned flags); 854 asmlinkage long sys_process_vm_readv(pid_t pid, 855 const struct iovec __user *lvec, 856 unsigned long liovcnt, 857 const struct iovec __user *rvec, 858 unsigned long riovcnt, 859 unsigned long flags); 860 asmlinkage long sys_process_vm_writev(pid_t pid, 861 const struct iovec __user *lvec, 862 unsigned long liovcnt, 863 const struct iovec __user *rvec, 864 unsigned long riovcnt, 865 unsigned long flags); 866 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type, 867 unsigned long idx1, unsigned long idx2); 868 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags); 869 asmlinkage long sys_sched_setattr(pid_t pid, 870 struct sched_attr __user *attr, 871 unsigned int flags); 872 asmlinkage long sys_sched_getattr(pid_t pid, 873 struct sched_attr __user *attr, 874 unsigned int size, 875 unsigned int flags); 876 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname, 877 int newdfd, const char __user *newname, 878 unsigned int flags); 879 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, 880 const char __user *uargs); 881 asmlinkage long sys_getrandom(char __user *buf, size_t count, 882 unsigned int flags); 883 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags); 884 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size); 885 asmlinkage long sys_execveat(int dfd, const char __user *filename, 886 const char __user *const __user *argv, 887 const char __user *const __user *envp, int flags); 888 asmlinkage long sys_userfaultfd(int flags); 889 asmlinkage long sys_membarrier(int cmd, int flags); 890 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags); 891 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in, 892 int fd_out, loff_t __user *off_out, 893 size_t len, unsigned int flags); 894 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec, 895 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 896 rwf_t flags); 897 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec, 898 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 899 rwf_t flags); 900 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len, 901 unsigned long prot, int pkey); 902 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val); 903 asmlinkage long sys_pkey_free(int pkey); 904 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags, 905 unsigned mask, struct statx __user *buffer); 906 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len, 907 int flags, uint32_t sig); 908 909 /* 910 * Architecture-specific system calls 911 */ 912 913 /* arch/x86/kernel/ioport.c */ 914 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); 915 916 /* pciconfig: alpha, arm, arm64, ia64, sparc */ 917 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn, 918 unsigned long off, unsigned long len, 919 void __user *buf); 920 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn, 921 unsigned long off, unsigned long len, 922 void __user *buf); 923 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn); 924 925 /* powerpc */ 926 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc, 927 __u32 __user *ustatus); 928 asmlinkage long sys_spu_create(const char __user *name, 929 unsigned int flags, umode_t mode, int fd); 930 931 932 /* 933 * Deprecated system calls which are still defined in 934 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch 935 */ 936 937 /* __ARCH_WANT_SYSCALL_NO_AT */ 938 asmlinkage long sys_open(const char __user *filename, 939 int flags, umode_t mode); 940 asmlinkage long sys_link(const char __user *oldname, 941 const char __user *newname); 942 asmlinkage long sys_unlink(const char __user *pathname); 943 asmlinkage long sys_mknod(const char __user *filename, umode_t mode, 944 unsigned dev); 945 asmlinkage long sys_chmod(const char __user *filename, umode_t mode); 946 asmlinkage long sys_chown(const char __user *filename, 947 uid_t user, gid_t group); 948 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode); 949 asmlinkage long sys_rmdir(const char __user *pathname); 950 asmlinkage long sys_lchown(const char __user *filename, 951 uid_t user, gid_t group); 952 asmlinkage long sys_access(const char __user *filename, int mode); 953 asmlinkage long sys_rename(const char __user *oldname, 954 const char __user *newname); 955 asmlinkage long sys_symlink(const char __user *old, const char __user *new); 956 asmlinkage long sys_utimes(char __user *filename, 957 struct timeval __user *utimes); 958 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 959 asmlinkage long sys_stat64(const char __user *filename, 960 struct stat64 __user *statbuf); 961 asmlinkage long sys_lstat64(const char __user *filename, 962 struct stat64 __user *statbuf); 963 #endif 964 965 /* __ARCH_WANT_SYSCALL_NO_FLAGS */ 966 asmlinkage long sys_pipe(int __user *fildes); 967 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd); 968 asmlinkage long sys_epoll_create(int size); 969 asmlinkage long sys_inotify_init(void); 970 asmlinkage long sys_eventfd(unsigned int count); 971 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask); 972 973 /* __ARCH_WANT_SYSCALL_OFF_T */ 974 asmlinkage long sys_sendfile(int out_fd, int in_fd, 975 off_t __user *offset, size_t count); 976 asmlinkage long sys_newstat(const char __user *filename, 977 struct stat __user *statbuf); 978 asmlinkage long sys_newlstat(const char __user *filename, 979 struct stat __user *statbuf); 980 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice); 981 982 /* __ARCH_WANT_SYSCALL_DEPRECATED */ 983 asmlinkage long sys_alarm(unsigned int seconds); 984 asmlinkage long sys_getpgrp(void); 985 asmlinkage long sys_pause(void); 986 asmlinkage long sys_time(time_t __user *tloc); 987 asmlinkage long sys_utime(char __user *filename, 988 struct utimbuf __user *times); 989 asmlinkage long sys_creat(const char __user *pathname, umode_t mode); 990 asmlinkage long sys_getdents(unsigned int fd, 991 struct linux_dirent __user *dirent, 992 unsigned int count); 993 asmlinkage long sys_futimesat(int dfd, const char __user *filename, 994 struct timeval __user *utimes); 995 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp, 996 fd_set __user *exp, struct timeval __user *tvp); 997 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds, 998 int timeout); 999 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, 1000 int maxevents, int timeout); 1001 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf); 1002 asmlinkage long sys_vfork(void); 1003 asmlinkage long sys_recv(int, void __user *, size_t, unsigned); 1004 asmlinkage long sys_send(int, void __user *, size_t, unsigned); 1005 asmlinkage long sys_bdflush(int func, long data); 1006 asmlinkage long sys_oldumount(char __user *name); 1007 asmlinkage long sys_uselib(const char __user *library); 1008 asmlinkage long sys_sysctl(struct __sysctl_args __user *args); 1009 asmlinkage long sys_sysfs(int option, 1010 unsigned long arg1, unsigned long arg2); 1011 asmlinkage long sys_fork(void); 1012 1013 /* obsolete: kernel/time/time.c */ 1014 asmlinkage long sys_stime(time_t __user *tptr); 1015 1016 /* obsolete: kernel/signal.c */ 1017 asmlinkage long sys_sigpending(old_sigset_t __user *uset); 1018 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set, 1019 old_sigset_t __user *oset); 1020 #ifdef CONFIG_OLD_SIGSUSPEND 1021 asmlinkage long sys_sigsuspend(old_sigset_t mask); 1022 #endif 1023 1024 #ifdef CONFIG_OLD_SIGSUSPEND3 1025 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask); 1026 #endif 1027 1028 #ifdef CONFIG_OLD_SIGACTION 1029 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *, 1030 struct old_sigaction __user *); 1031 #endif 1032 asmlinkage long sys_sgetmask(void); 1033 asmlinkage long sys_ssetmask(int newmask); 1034 asmlinkage long sys_signal(int sig, __sighandler_t handler); 1035 1036 /* obsolete: kernel/sched/core.c */ 1037 asmlinkage long sys_nice(int increment); 1038 1039 /* obsolete: kernel/kexec_file.c */ 1040 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd, 1041 unsigned long cmdline_len, 1042 const char __user *cmdline_ptr, 1043 unsigned long flags); 1044 1045 /* obsolete: kernel/exit.c */ 1046 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options); 1047 1048 /* obsolete: kernel/uid16.c */ 1049 #ifdef CONFIG_HAVE_UID16 1050 asmlinkage long sys_chown16(const char __user *filename, 1051 old_uid_t user, old_gid_t group); 1052 asmlinkage long sys_lchown16(const char __user *filename, 1053 old_uid_t user, old_gid_t group); 1054 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group); 1055 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid); 1056 asmlinkage long sys_setgid16(old_gid_t gid); 1057 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid); 1058 asmlinkage long sys_setuid16(old_uid_t uid); 1059 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid); 1060 asmlinkage long sys_getresuid16(old_uid_t __user *ruid, 1061 old_uid_t __user *euid, old_uid_t __user *suid); 1062 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid); 1063 asmlinkage long sys_getresgid16(old_gid_t __user *rgid, 1064 old_gid_t __user *egid, old_gid_t __user *sgid); 1065 asmlinkage long sys_setfsuid16(old_uid_t uid); 1066 asmlinkage long sys_setfsgid16(old_gid_t gid); 1067 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist); 1068 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist); 1069 asmlinkage long sys_getuid16(void); 1070 asmlinkage long sys_geteuid16(void); 1071 asmlinkage long sys_getgid16(void); 1072 asmlinkage long sys_getegid16(void); 1073 #endif 1074 1075 /* obsolete: net/socket.c */ 1076 asmlinkage long sys_socketcall(int call, unsigned long __user *args); 1077 1078 /* obsolete: fs/stat.c */ 1079 asmlinkage long sys_stat(const char __user *filename, 1080 struct __old_kernel_stat __user *statbuf); 1081 asmlinkage long sys_lstat(const char __user *filename, 1082 struct __old_kernel_stat __user *statbuf); 1083 asmlinkage long sys_fstat(unsigned int fd, 1084 struct __old_kernel_stat __user *statbuf); 1085 asmlinkage long sys_readlink(const char __user *path, 1086 char __user *buf, int bufsiz); 1087 1088 /* obsolete: fs/select.c */ 1089 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg); 1090 1091 /* obsolete: fs/readdir.c */ 1092 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int); 1093 1094 /* obsolete: kernel/sys.c */ 1095 asmlinkage long sys_gethostname(char __user *name, int len); 1096 asmlinkage long sys_uname(struct old_utsname __user *); 1097 asmlinkage long sys_olduname(struct oldold_utsname __user *); 1098 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT 1099 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim); 1100 #endif 1101 1102 /* obsolete: ipc */ 1103 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second, 1104 unsigned long third, void __user *ptr, long fifth); 1105 1106 /* obsolete: mm/ */ 1107 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len, 1108 unsigned long prot, unsigned long flags, 1109 unsigned long fd, unsigned long pgoff); 1110 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg); 1111 1112 1113 /* 1114 * Not a real system call, but a placeholder for syscalls which are 1115 * not implemented -- see kernel/sys_ni.c 1116 */ 1117 asmlinkage long sys_ni_syscall(void); 1118 1119 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 1120 1121 1122 /* 1123 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly. 1124 * Instead, use one of the functions which work equivalently, such as 1125 * the ksys_xyzyyz() functions prototyped below. 1126 */ 1127 1128 int ksys_mount(char __user *dev_name, char __user *dir_name, char __user *type, 1129 unsigned long flags, void __user *data); 1130 int ksys_umount(char __user *name, int flags); 1131 int ksys_dup(unsigned int fildes); 1132 int ksys_chroot(const char __user *filename); 1133 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count); 1134 int ksys_chdir(const char __user *filename); 1135 int ksys_fchmod(unsigned int fd, umode_t mode); 1136 int ksys_fchown(unsigned int fd, uid_t user, gid_t group); 1137 int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent, 1138 unsigned int count); 1139 int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg); 1140 off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence); 1141 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count); 1142 void ksys_sync(void); 1143 int ksys_unshare(unsigned long unshare_flags); 1144 int ksys_setsid(void); 1145 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 1146 unsigned int flags); 1147 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count, 1148 loff_t pos); 1149 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf, 1150 size_t count, loff_t pos); 1151 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len); 1152 #ifdef CONFIG_ADVISE_SYSCALLS 1153 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 1154 #else 1155 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, 1156 int advice) 1157 { 1158 return -EINVAL; 1159 } 1160 #endif 1161 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len, 1162 unsigned long prot, unsigned long flags, 1163 unsigned long fd, unsigned long pgoff); 1164 ssize_t ksys_readahead(int fd, loff_t offset, size_t count); 1165 1166 /* 1167 * The following kernel syscall equivalents are just wrappers to fs-internal 1168 * functions. Therefore, provide stubs to be inlined at the callsites. 1169 */ 1170 extern long do_unlinkat(int dfd, struct filename *name); 1171 1172 static inline long ksys_unlink(const char __user *pathname) 1173 { 1174 return do_unlinkat(AT_FDCWD, getname(pathname)); 1175 } 1176 1177 extern long do_rmdir(int dfd, const char __user *pathname); 1178 1179 static inline long ksys_rmdir(const char __user *pathname) 1180 { 1181 return do_rmdir(AT_FDCWD, pathname); 1182 } 1183 1184 extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode); 1185 1186 static inline long ksys_mkdir(const char __user *pathname, umode_t mode) 1187 { 1188 return do_mkdirat(AT_FDCWD, pathname, mode); 1189 } 1190 1191 extern long do_symlinkat(const char __user *oldname, int newdfd, 1192 const char __user *newname); 1193 1194 static inline long ksys_symlink(const char __user *oldname, 1195 const char __user *newname) 1196 { 1197 return do_symlinkat(oldname, AT_FDCWD, newname); 1198 } 1199 1200 extern long do_mknodat(int dfd, const char __user *filename, umode_t mode, 1201 unsigned int dev); 1202 1203 static inline long ksys_mknod(const char __user *filename, umode_t mode, 1204 unsigned int dev) 1205 { 1206 return do_mknodat(AT_FDCWD, filename, mode, dev); 1207 } 1208 1209 extern int do_linkat(int olddfd, const char __user *oldname, int newdfd, 1210 const char __user *newname, int flags); 1211 1212 static inline long ksys_link(const char __user *oldname, 1213 const char __user *newname) 1214 { 1215 return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0); 1216 } 1217 1218 extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode); 1219 1220 static inline int ksys_chmod(const char __user *filename, umode_t mode) 1221 { 1222 return do_fchmodat(AT_FDCWD, filename, mode); 1223 } 1224 1225 extern long do_faccessat(int dfd, const char __user *filename, int mode); 1226 1227 static inline long ksys_access(const char __user *filename, int mode) 1228 { 1229 return do_faccessat(AT_FDCWD, filename, mode); 1230 } 1231 1232 extern int do_fchownat(int dfd, const char __user *filename, uid_t user, 1233 gid_t group, int flag); 1234 1235 static inline long ksys_chown(const char __user *filename, uid_t user, 1236 gid_t group) 1237 { 1238 return do_fchownat(AT_FDCWD, filename, user, group, 0); 1239 } 1240 1241 static inline long ksys_lchown(const char __user *filename, uid_t user, 1242 gid_t group) 1243 { 1244 return do_fchownat(AT_FDCWD, filename, user, group, 1245 AT_SYMLINK_NOFOLLOW); 1246 } 1247 1248 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small); 1249 1250 static inline long ksys_ftruncate(unsigned int fd, unsigned long length) 1251 { 1252 return do_sys_ftruncate(fd, length, 1); 1253 } 1254 1255 extern int __close_fd(struct files_struct *files, unsigned int fd); 1256 1257 /* 1258 * In contrast to sys_close(), this stub does not check whether the syscall 1259 * should or should not be restarted, but returns the raw error codes from 1260 * __close_fd(). 1261 */ 1262 static inline int ksys_close(unsigned int fd) 1263 { 1264 return __close_fd(current->files, fd); 1265 } 1266 1267 extern long do_sys_open(int dfd, const char __user *filename, int flags, 1268 umode_t mode); 1269 1270 static inline long ksys_open(const char __user *filename, int flags, 1271 umode_t mode) 1272 { 1273 if (force_o_largefile()) 1274 flags |= O_LARGEFILE; 1275 return do_sys_open(AT_FDCWD, filename, flags, mode); 1276 } 1277 1278 extern long do_sys_truncate(const char __user *pathname, loff_t length); 1279 1280 static inline long ksys_truncate(const char __user *pathname, loff_t length) 1281 { 1282 return do_sys_truncate(pathname, length); 1283 } 1284 1285 #endif 1286