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 epoll_event; 15 struct iattr; 16 struct inode; 17 struct iocb; 18 struct io_event; 19 struct iovec; 20 struct itimerspec; 21 struct itimerval; 22 struct kexec_segment; 23 struct linux_dirent; 24 struct linux_dirent64; 25 struct list_head; 26 struct mmap_arg_struct; 27 struct msgbuf; 28 struct user_msghdr; 29 struct mmsghdr; 30 struct msqid_ds; 31 struct new_utsname; 32 struct nfsctl_arg; 33 struct __old_kernel_stat; 34 struct oldold_utsname; 35 struct old_utsname; 36 struct pollfd; 37 struct rlimit; 38 struct rlimit64; 39 struct rusage; 40 struct sched_param; 41 struct sched_attr; 42 struct sel_arg_struct; 43 struct semaphore; 44 struct sembuf; 45 struct shmid_ds; 46 struct sockaddr; 47 struct stat; 48 struct stat64; 49 struct statfs; 50 struct statfs64; 51 struct statx; 52 struct __sysctl_args; 53 struct sysinfo; 54 struct timespec; 55 struct timeval; 56 struct timex; 57 struct timezone; 58 struct tms; 59 struct utimbuf; 60 struct mq_attr; 61 struct compat_stat; 62 struct compat_timeval; 63 struct robust_list_head; 64 struct getcpu_cache; 65 struct old_linux_dirent; 66 struct perf_event_attr; 67 struct file_handle; 68 struct sigaltstack; 69 struct rseq; 70 union bpf_attr; 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 <trace/syscall.h> 84 85 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 86 /* 87 * It may be useful for an architecture to override the definitions of the 88 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a 89 * different calling convention for syscalls. To allow for that, the prototypes 90 * for the sys_*() functions below will *not* be included if 91 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 92 */ 93 #include <asm/syscall_wrapper.h> 94 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 95 96 /* 97 * __MAP - apply a macro to syscall arguments 98 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to 99 * m(t1, a1), m(t2, a2), ..., m(tn, an) 100 * The first argument must be equal to the amount of type/name 101 * pairs given. Note that this list of pairs (i.e. the arguments 102 * of __MAP starting at the third one) is in the same format as 103 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n> 104 */ 105 #define __MAP0(m,...) 106 #define __MAP1(m,t,a,...) m(t,a) 107 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__) 108 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__) 109 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__) 110 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__) 111 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__) 112 #define __MAP(n,...) __MAP##n(__VA_ARGS__) 113 114 #define __SC_DECL(t, a) t a 115 #define __TYPE_AS(t, v) __same_type((__force t)0, v) 116 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L)) 117 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL)) 118 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL)) 119 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a 120 #define __SC_CAST(t, a) (__force t) a 121 #define __SC_ARGS(t, a) a 122 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long)) 123 124 #ifdef CONFIG_FTRACE_SYSCALLS 125 #define __SC_STR_ADECL(t, a) #a 126 #define __SC_STR_TDECL(t, a) #t 127 128 extern struct trace_event_class event_class_syscall_enter; 129 extern struct trace_event_class event_class_syscall_exit; 130 extern struct trace_event_functions enter_syscall_print_funcs; 131 extern struct trace_event_functions exit_syscall_print_funcs; 132 133 #define SYSCALL_TRACE_ENTER_EVENT(sname) \ 134 static struct syscall_metadata __syscall_meta_##sname; \ 135 static struct trace_event_call __used \ 136 event_enter_##sname = { \ 137 .class = &event_class_syscall_enter, \ 138 { \ 139 .name = "sys_enter"#sname, \ 140 }, \ 141 .event.funcs = &enter_syscall_print_funcs, \ 142 .data = (void *)&__syscall_meta_##sname,\ 143 .flags = TRACE_EVENT_FL_CAP_ANY, \ 144 }; \ 145 static struct trace_event_call __used \ 146 __attribute__((section("_ftrace_events"))) \ 147 *__event_enter_##sname = &event_enter_##sname; 148 149 #define SYSCALL_TRACE_EXIT_EVENT(sname) \ 150 static struct syscall_metadata __syscall_meta_##sname; \ 151 static struct trace_event_call __used \ 152 event_exit_##sname = { \ 153 .class = &event_class_syscall_exit, \ 154 { \ 155 .name = "sys_exit"#sname, \ 156 }, \ 157 .event.funcs = &exit_syscall_print_funcs, \ 158 .data = (void *)&__syscall_meta_##sname,\ 159 .flags = TRACE_EVENT_FL_CAP_ANY, \ 160 }; \ 161 static struct trace_event_call __used \ 162 __attribute__((section("_ftrace_events"))) \ 163 *__event_exit_##sname = &event_exit_##sname; 164 165 #define SYSCALL_METADATA(sname, nb, ...) \ 166 static const char *types_##sname[] = { \ 167 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \ 168 }; \ 169 static const char *args_##sname[] = { \ 170 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \ 171 }; \ 172 SYSCALL_TRACE_ENTER_EVENT(sname); \ 173 SYSCALL_TRACE_EXIT_EVENT(sname); \ 174 static struct syscall_metadata __used \ 175 __syscall_meta_##sname = { \ 176 .name = "sys"#sname, \ 177 .syscall_nr = -1, /* Filled in at boot */ \ 178 .nb_args = nb, \ 179 .types = nb ? types_##sname : NULL, \ 180 .args = nb ? args_##sname : NULL, \ 181 .enter_event = &event_enter_##sname, \ 182 .exit_event = &event_exit_##sname, \ 183 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \ 184 }; \ 185 static struct syscall_metadata __used \ 186 __attribute__((section("__syscalls_metadata"))) \ 187 *__p_syscall_meta_##sname = &__syscall_meta_##sname; 188 189 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 190 { 191 return tp_event->class == &event_class_syscall_enter || 192 tp_event->class == &event_class_syscall_exit; 193 } 194 195 #else 196 #define SYSCALL_METADATA(sname, nb, ...) 197 198 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 199 { 200 return 0; 201 } 202 #endif 203 204 #ifndef SYSCALL_DEFINE0 205 #define SYSCALL_DEFINE0(sname) \ 206 SYSCALL_METADATA(_##sname, 0); \ 207 asmlinkage long sys_##sname(void); \ 208 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \ 209 asmlinkage long sys_##sname(void) 210 #endif /* SYSCALL_DEFINE0 */ 211 212 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__) 213 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__) 214 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) 215 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__) 216 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) 217 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) 218 219 #define SYSCALL_DEFINE_MAXARGS 6 220 221 #define SYSCALL_DEFINEx(x, sname, ...) \ 222 SYSCALL_METADATA(sname, x, __VA_ARGS__) \ 223 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) 224 225 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__) 226 227 /* 228 * The asmlinkage stub is aliased to a function named __se_sys_*() which 229 * sign-extends 32-bit ints to longs whenever needed. The actual work is 230 * done within __do_sys_*(). 231 */ 232 #ifndef __SYSCALL_DEFINEx 233 #define __SYSCALL_DEFINEx(x, name, ...) \ 234 __diag_push(); \ 235 __diag_ignore(GCC, 8, "-Wattribute-alias", \ 236 "Type aliasing is used to sanitize syscall arguments");\ 237 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ 238 __attribute__((alias(__stringify(__se_sys##name)))); \ 239 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \ 240 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ 241 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ 242 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ 243 { \ 244 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\ 245 __MAP(x,__SC_TEST,__VA_ARGS__); \ 246 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \ 247 return ret; \ 248 } \ 249 __diag_pop(); \ 250 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) 251 #endif /* __SYSCALL_DEFINEx */ 252 253 /* 254 * Called before coming back to user-mode. Returning to user-mode with an 255 * address limit different than USER_DS can allow to overwrite kernel memory. 256 */ 257 static inline void addr_limit_user_check(void) 258 { 259 #ifdef TIF_FSCHECK 260 if (!test_thread_flag(TIF_FSCHECK)) 261 return; 262 #endif 263 264 if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS), 265 "Invalid address limit on user-mode return")) 266 force_sig(SIGKILL, current); 267 268 #ifdef TIF_FSCHECK 269 clear_thread_flag(TIF_FSCHECK); 270 #endif 271 } 272 273 /* 274 * These syscall function prototypes are kept in the same order as 275 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below, 276 * followed by deprecated or obsolete system calls. 277 * 278 * Please note that these prototypes here are only provided for information 279 * purposes, for static analysis, and for linking from the syscall table. 280 * These functions should not be called elsewhere from kernel code. 281 * 282 * As the syscall calling convention may be different from the default 283 * for architectures overriding the syscall calling convention, do not 284 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 285 */ 286 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 287 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx); 288 asmlinkage long sys_io_destroy(aio_context_t ctx); 289 asmlinkage long sys_io_submit(aio_context_t, long, 290 struct iocb __user * __user *); 291 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb, 292 struct io_event __user *result); 293 asmlinkage long sys_io_getevents(aio_context_t ctx_id, 294 long min_nr, 295 long nr, 296 struct io_event __user *events, 297 struct timespec __user *timeout); 298 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id, 299 long min_nr, 300 long nr, 301 struct io_event __user *events, 302 struct timespec __user *timeout, 303 const struct __aio_sigset *sig); 304 305 /* fs/xattr.c */ 306 asmlinkage long sys_setxattr(const char __user *path, const char __user *name, 307 const void __user *value, size_t size, int flags); 308 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name, 309 const void __user *value, size_t size, int flags); 310 asmlinkage long sys_fsetxattr(int fd, const char __user *name, 311 const void __user *value, size_t size, int flags); 312 asmlinkage long sys_getxattr(const char __user *path, const char __user *name, 313 void __user *value, size_t size); 314 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name, 315 void __user *value, size_t size); 316 asmlinkage long sys_fgetxattr(int fd, const char __user *name, 317 void __user *value, size_t size); 318 asmlinkage long sys_listxattr(const char __user *path, char __user *list, 319 size_t size); 320 asmlinkage long sys_llistxattr(const char __user *path, char __user *list, 321 size_t size); 322 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size); 323 asmlinkage long sys_removexattr(const char __user *path, 324 const char __user *name); 325 asmlinkage long sys_lremovexattr(const char __user *path, 326 const char __user *name); 327 asmlinkage long sys_fremovexattr(int fd, const char __user *name); 328 329 /* fs/dcache.c */ 330 asmlinkage long sys_getcwd(char __user *buf, unsigned long size); 331 332 /* fs/cookies.c */ 333 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len); 334 335 /* fs/eventfd.c */ 336 asmlinkage long sys_eventfd2(unsigned int count, int flags); 337 338 /* fs/eventpoll.c */ 339 asmlinkage long sys_epoll_create1(int flags); 340 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, 341 struct epoll_event __user *event); 342 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events, 343 int maxevents, int timeout, 344 const sigset_t __user *sigmask, 345 size_t sigsetsize); 346 347 /* fs/fcntl.c */ 348 asmlinkage long sys_dup(unsigned int fildes); 349 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags); 350 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); 351 #if BITS_PER_LONG == 32 352 asmlinkage long sys_fcntl64(unsigned int fd, 353 unsigned int cmd, unsigned long arg); 354 #endif 355 356 /* fs/inotify_user.c */ 357 asmlinkage long sys_inotify_init1(int flags); 358 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, 359 u32 mask); 360 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd); 361 362 /* fs/ioctl.c */ 363 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, 364 unsigned long arg); 365 366 /* fs/ioprio.c */ 367 asmlinkage long sys_ioprio_set(int which, int who, int ioprio); 368 asmlinkage long sys_ioprio_get(int which, int who); 369 370 /* fs/locks.c */ 371 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd); 372 373 /* fs/namei.c */ 374 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode, 375 unsigned dev); 376 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode); 377 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag); 378 asmlinkage long sys_symlinkat(const char __user * oldname, 379 int newdfd, const char __user * newname); 380 asmlinkage long sys_linkat(int olddfd, const char __user *oldname, 381 int newdfd, const char __user *newname, int flags); 382 asmlinkage long sys_renameat(int olddfd, const char __user * oldname, 383 int newdfd, const char __user * newname); 384 385 /* fs/namespace.c */ 386 asmlinkage long sys_umount(char __user *name, int flags); 387 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name, 388 char __user *type, unsigned long flags, 389 void __user *data); 390 asmlinkage long sys_pivot_root(const char __user *new_root, 391 const char __user *put_old); 392 393 /* fs/nfsctl.c */ 394 395 /* fs/open.c */ 396 asmlinkage long sys_statfs(const char __user * path, 397 struct statfs __user *buf); 398 asmlinkage long sys_statfs64(const char __user *path, size_t sz, 399 struct statfs64 __user *buf); 400 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf); 401 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz, 402 struct statfs64 __user *buf); 403 asmlinkage long sys_truncate(const char __user *path, long length); 404 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length); 405 #if BITS_PER_LONG == 32 406 asmlinkage long sys_truncate64(const char __user *path, loff_t length); 407 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length); 408 #endif 409 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len); 410 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode); 411 asmlinkage long sys_chdir(const char __user *filename); 412 asmlinkage long sys_fchdir(unsigned int fd); 413 asmlinkage long sys_chroot(const char __user *filename); 414 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode); 415 asmlinkage long sys_fchmodat(int dfd, const char __user * filename, 416 umode_t mode); 417 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user, 418 gid_t group, int flag); 419 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group); 420 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags, 421 umode_t mode); 422 asmlinkage long sys_close(unsigned int fd); 423 asmlinkage long sys_vhangup(void); 424 425 /* fs/pipe.c */ 426 asmlinkage long sys_pipe2(int __user *fildes, int flags); 427 428 /* fs/quota.c */ 429 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special, 430 qid_t id, void __user *addr); 431 432 /* fs/readdir.c */ 433 asmlinkage long sys_getdents64(unsigned int fd, 434 struct linux_dirent64 __user *dirent, 435 unsigned int count); 436 437 /* fs/read_write.c */ 438 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high, 439 unsigned long offset_low, loff_t __user *result, 440 unsigned int whence); 441 asmlinkage long sys_lseek(unsigned int fd, off_t offset, 442 unsigned int whence); 443 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count); 444 asmlinkage long sys_write(unsigned int fd, const char __user *buf, 445 size_t count); 446 asmlinkage long sys_readv(unsigned long fd, 447 const struct iovec __user *vec, 448 unsigned long vlen); 449 asmlinkage long sys_writev(unsigned long fd, 450 const struct iovec __user *vec, 451 unsigned long vlen); 452 asmlinkage long sys_pread64(unsigned int fd, char __user *buf, 453 size_t count, loff_t pos); 454 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf, 455 size_t count, loff_t pos); 456 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec, 457 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 458 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec, 459 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 460 461 /* fs/sendfile.c */ 462 asmlinkage long sys_sendfile64(int out_fd, int in_fd, 463 loff_t __user *offset, size_t count); 464 465 /* fs/select.c */ 466 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *, 467 fd_set __user *, struct timespec __user *, 468 void __user *); 469 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int, 470 struct timespec __user *, const sigset_t __user *, 471 size_t); 472 473 /* fs/signalfd.c */ 474 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags); 475 476 /* fs/splice.c */ 477 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov, 478 unsigned long nr_segs, unsigned int flags); 479 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in, 480 int fd_out, loff_t __user *off_out, 481 size_t len, unsigned int flags); 482 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags); 483 484 /* fs/stat.c */ 485 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf, 486 int bufsiz); 487 asmlinkage long sys_newfstatat(int dfd, const char __user *filename, 488 struct stat __user *statbuf, int flag); 489 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf); 490 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 491 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf); 492 asmlinkage long sys_fstatat64(int dfd, const char __user *filename, 493 struct stat64 __user *statbuf, int flag); 494 #endif 495 496 /* fs/sync.c */ 497 asmlinkage long sys_sync(void); 498 asmlinkage long sys_fsync(unsigned int fd); 499 asmlinkage long sys_fdatasync(unsigned int fd); 500 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags, 501 loff_t offset, loff_t nbytes); 502 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 503 unsigned int flags); 504 505 /* fs/timerfd.c */ 506 asmlinkage long sys_timerfd_create(int clockid, int flags); 507 asmlinkage long sys_timerfd_settime(int ufd, int flags, 508 const struct itimerspec __user *utmr, 509 struct itimerspec __user *otmr); 510 asmlinkage long sys_timerfd_gettime(int ufd, struct itimerspec __user *otmr); 511 512 /* fs/utimes.c */ 513 asmlinkage long sys_utimensat(int dfd, const char __user *filename, 514 struct timespec __user *utimes, int flags); 515 516 /* kernel/acct.c */ 517 asmlinkage long sys_acct(const char __user *name); 518 519 /* kernel/capability.c */ 520 asmlinkage long sys_capget(cap_user_header_t header, 521 cap_user_data_t dataptr); 522 asmlinkage long sys_capset(cap_user_header_t header, 523 const cap_user_data_t data); 524 525 /* kernel/exec_domain.c */ 526 asmlinkage long sys_personality(unsigned int personality); 527 528 /* kernel/exit.c */ 529 asmlinkage long sys_exit(int error_code); 530 asmlinkage long sys_exit_group(int error_code); 531 asmlinkage long sys_waitid(int which, pid_t pid, 532 struct siginfo __user *infop, 533 int options, struct rusage __user *ru); 534 535 /* kernel/fork.c */ 536 asmlinkage long sys_set_tid_address(int __user *tidptr); 537 asmlinkage long sys_unshare(unsigned long unshare_flags); 538 539 /* kernel/futex.c */ 540 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val, 541 struct timespec __user *utime, u32 __user *uaddr2, 542 u32 val3); 543 asmlinkage long sys_get_robust_list(int pid, 544 struct robust_list_head __user * __user *head_ptr, 545 size_t __user *len_ptr); 546 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, 547 size_t len); 548 549 /* kernel/hrtimer.c */ 550 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp, 551 struct __kernel_timespec __user *rmtp); 552 553 /* kernel/itimer.c */ 554 asmlinkage long sys_getitimer(int which, struct itimerval __user *value); 555 asmlinkage long sys_setitimer(int which, 556 struct itimerval __user *value, 557 struct itimerval __user *ovalue); 558 559 /* kernel/kexec.c */ 560 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments, 561 struct kexec_segment __user *segments, 562 unsigned long flags); 563 564 /* kernel/module.c */ 565 asmlinkage long sys_init_module(void __user *umod, unsigned long len, 566 const char __user *uargs); 567 asmlinkage long sys_delete_module(const char __user *name_user, 568 unsigned int flags); 569 570 /* kernel/posix-timers.c */ 571 asmlinkage long sys_timer_create(clockid_t which_clock, 572 struct sigevent __user *timer_event_spec, 573 timer_t __user * created_timer_id); 574 asmlinkage long sys_timer_gettime(timer_t timer_id, 575 struct itimerspec __user *setting); 576 asmlinkage long sys_timer_getoverrun(timer_t timer_id); 577 asmlinkage long sys_timer_settime(timer_t timer_id, int flags, 578 const struct itimerspec __user *new_setting, 579 struct itimerspec __user *old_setting); 580 asmlinkage long sys_timer_delete(timer_t timer_id); 581 asmlinkage long sys_clock_settime(clockid_t which_clock, 582 const struct __kernel_timespec __user *tp); 583 asmlinkage long sys_clock_gettime(clockid_t which_clock, 584 struct __kernel_timespec __user *tp); 585 asmlinkage long sys_clock_getres(clockid_t which_clock, 586 struct __kernel_timespec __user *tp); 587 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags, 588 const struct __kernel_timespec __user *rqtp, 589 struct __kernel_timespec __user *rmtp); 590 591 /* kernel/printk.c */ 592 asmlinkage long sys_syslog(int type, char __user *buf, int len); 593 594 /* kernel/ptrace.c */ 595 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, 596 unsigned long data); 597 /* kernel/sched/core.c */ 598 599 asmlinkage long sys_sched_setparam(pid_t pid, 600 struct sched_param __user *param); 601 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy, 602 struct sched_param __user *param); 603 asmlinkage long sys_sched_getscheduler(pid_t pid); 604 asmlinkage long sys_sched_getparam(pid_t pid, 605 struct sched_param __user *param); 606 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len, 607 unsigned long __user *user_mask_ptr); 608 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len, 609 unsigned long __user *user_mask_ptr); 610 asmlinkage long sys_sched_yield(void); 611 asmlinkage long sys_sched_get_priority_max(int policy); 612 asmlinkage long sys_sched_get_priority_min(int policy); 613 asmlinkage long sys_sched_rr_get_interval(pid_t pid, 614 struct timespec __user *interval); 615 616 /* kernel/signal.c */ 617 asmlinkage long sys_restart_syscall(void); 618 asmlinkage long sys_kill(pid_t pid, int sig); 619 asmlinkage long sys_tkill(pid_t pid, int sig); 620 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig); 621 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss, 622 struct sigaltstack __user *uoss); 623 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize); 624 #ifndef CONFIG_ODD_RT_SIGACTION 625 asmlinkage long sys_rt_sigaction(int, 626 const struct sigaction __user *, 627 struct sigaction __user *, 628 size_t); 629 #endif 630 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set, 631 sigset_t __user *oset, size_t sigsetsize); 632 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize); 633 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese, 634 siginfo_t __user *uinfo, 635 const struct timespec __user *uts, 636 size_t sigsetsize); 637 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo); 638 639 /* kernel/sys.c */ 640 asmlinkage long sys_setpriority(int which, int who, int niceval); 641 asmlinkage long sys_getpriority(int which, int who); 642 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, 643 void __user *arg); 644 asmlinkage long sys_setregid(gid_t rgid, gid_t egid); 645 asmlinkage long sys_setgid(gid_t gid); 646 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid); 647 asmlinkage long sys_setuid(uid_t uid); 648 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid); 649 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid); 650 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid); 651 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid); 652 asmlinkage long sys_setfsuid(uid_t uid); 653 asmlinkage long sys_setfsgid(gid_t gid); 654 asmlinkage long sys_times(struct tms __user *tbuf); 655 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid); 656 asmlinkage long sys_getpgid(pid_t pid); 657 asmlinkage long sys_getsid(pid_t pid); 658 asmlinkage long sys_setsid(void); 659 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist); 660 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist); 661 asmlinkage long sys_newuname(struct new_utsname __user *name); 662 asmlinkage long sys_sethostname(char __user *name, int len); 663 asmlinkage long sys_setdomainname(char __user *name, int len); 664 asmlinkage long sys_getrlimit(unsigned int resource, 665 struct rlimit __user *rlim); 666 asmlinkage long sys_setrlimit(unsigned int resource, 667 struct rlimit __user *rlim); 668 asmlinkage long sys_getrusage(int who, struct rusage __user *ru); 669 asmlinkage long sys_umask(int mask); 670 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, 671 unsigned long arg4, unsigned long arg5); 672 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache); 673 674 /* kernel/time.c */ 675 asmlinkage long sys_gettimeofday(struct timeval __user *tv, 676 struct timezone __user *tz); 677 asmlinkage long sys_settimeofday(struct timeval __user *tv, 678 struct timezone __user *tz); 679 asmlinkage long sys_adjtimex(struct timex __user *txc_p); 680 681 /* kernel/timer.c */ 682 asmlinkage long sys_getpid(void); 683 asmlinkage long sys_getppid(void); 684 asmlinkage long sys_getuid(void); 685 asmlinkage long sys_geteuid(void); 686 asmlinkage long sys_getgid(void); 687 asmlinkage long sys_getegid(void); 688 asmlinkage long sys_gettid(void); 689 asmlinkage long sys_sysinfo(struct sysinfo __user *info); 690 691 /* ipc/mqueue.c */ 692 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr); 693 asmlinkage long sys_mq_unlink(const char __user *name); 694 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); 695 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); 696 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification); 697 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat); 698 699 /* ipc/msg.c */ 700 asmlinkage long sys_msgget(key_t key, int msgflg); 701 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 702 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp, 703 size_t msgsz, long msgtyp, int msgflg); 704 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp, 705 size_t msgsz, int msgflg); 706 707 /* ipc/sem.c */ 708 asmlinkage long sys_semget(key_t key, int nsems, int semflg); 709 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg); 710 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops, 711 unsigned nsops, 712 const struct __kernel_timespec __user *timeout); 713 asmlinkage long sys_semop(int semid, struct sembuf __user *sops, 714 unsigned nsops); 715 716 /* ipc/shm.c */ 717 asmlinkage long sys_shmget(key_t key, size_t size, int flag); 718 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 719 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg); 720 asmlinkage long sys_shmdt(char __user *shmaddr); 721 722 /* net/socket.c */ 723 asmlinkage long sys_socket(int, int, int); 724 asmlinkage long sys_socketpair(int, int, int, int __user *); 725 asmlinkage long sys_bind(int, struct sockaddr __user *, int); 726 asmlinkage long sys_listen(int, int); 727 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *); 728 asmlinkage long sys_connect(int, struct sockaddr __user *, int); 729 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *); 730 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *); 731 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned, 732 struct sockaddr __user *, int); 733 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned, 734 struct sockaddr __user *, int __user *); 735 asmlinkage long sys_setsockopt(int fd, int level, int optname, 736 char __user *optval, int optlen); 737 asmlinkage long sys_getsockopt(int fd, int level, int optname, 738 char __user *optval, int __user *optlen); 739 asmlinkage long sys_shutdown(int, int); 740 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 741 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 742 743 /* mm/filemap.c */ 744 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count); 745 746 /* mm/nommu.c, also with MMU */ 747 asmlinkage long sys_brk(unsigned long brk); 748 asmlinkage long sys_munmap(unsigned long addr, size_t len); 749 asmlinkage long sys_mremap(unsigned long addr, 750 unsigned long old_len, unsigned long new_len, 751 unsigned long flags, unsigned long new_addr); 752 753 /* security/keys/keyctl.c */ 754 asmlinkage long sys_add_key(const char __user *_type, 755 const char __user *_description, 756 const void __user *_payload, 757 size_t plen, 758 key_serial_t destringid); 759 asmlinkage long sys_request_key(const char __user *_type, 760 const char __user *_description, 761 const char __user *_callout_info, 762 key_serial_t destringid); 763 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3, 764 unsigned long arg4, unsigned long arg5); 765 766 /* arch/example/kernel/sys_example.c */ 767 #ifdef CONFIG_CLONE_BACKWARDS 768 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long, 769 int __user *); 770 #else 771 #ifdef CONFIG_CLONE_BACKWARDS3 772 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *, 773 int __user *, unsigned long); 774 #else 775 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, 776 int __user *, unsigned long); 777 #endif 778 #endif 779 asmlinkage long sys_execve(const char __user *filename, 780 const char __user *const __user *argv, 781 const char __user *const __user *envp); 782 783 /* mm/fadvise.c */ 784 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 785 786 /* mm/, CONFIG_MMU only */ 787 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags); 788 asmlinkage long sys_swapoff(const char __user *specialfile); 789 asmlinkage long sys_mprotect(unsigned long start, size_t len, 790 unsigned long prot); 791 asmlinkage long sys_msync(unsigned long start, size_t len, int flags); 792 asmlinkage long sys_mlock(unsigned long start, size_t len); 793 asmlinkage long sys_munlock(unsigned long start, size_t len); 794 asmlinkage long sys_mlockall(int flags); 795 asmlinkage long sys_munlockall(void); 796 asmlinkage long sys_mincore(unsigned long start, size_t len, 797 unsigned char __user * vec); 798 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior); 799 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, 800 unsigned long prot, unsigned long pgoff, 801 unsigned long flags); 802 asmlinkage long sys_mbind(unsigned long start, unsigned long len, 803 unsigned long mode, 804 const unsigned long __user *nmask, 805 unsigned long maxnode, 806 unsigned flags); 807 asmlinkage long sys_get_mempolicy(int __user *policy, 808 unsigned long __user *nmask, 809 unsigned long maxnode, 810 unsigned long addr, unsigned long flags); 811 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask, 812 unsigned long maxnode); 813 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode, 814 const unsigned long __user *from, 815 const unsigned long __user *to); 816 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages, 817 const void __user * __user *pages, 818 const int __user *nodes, 819 int __user *status, 820 int flags); 821 822 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, 823 siginfo_t __user *uinfo); 824 asmlinkage long sys_perf_event_open( 825 struct perf_event_attr __user *attr_uptr, 826 pid_t pid, int cpu, int group_fd, unsigned long flags); 827 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int); 828 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg, 829 unsigned int vlen, unsigned flags, 830 struct timespec __user *timeout); 831 832 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr, 833 int options, struct rusage __user *ru); 834 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource, 835 const struct rlimit64 __user *new_rlim, 836 struct rlimit64 __user *old_rlim); 837 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags); 838 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags, 839 u64 mask, int fd, 840 const char __user *pathname); 841 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name, 842 struct file_handle __user *handle, 843 int __user *mnt_id, int flag); 844 asmlinkage long sys_open_by_handle_at(int mountdirfd, 845 struct file_handle __user *handle, 846 int flags); 847 asmlinkage long sys_clock_adjtime(clockid_t which_clock, 848 struct timex __user *tx); 849 asmlinkage long sys_syncfs(int fd); 850 asmlinkage long sys_setns(int fd, int nstype); 851 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg, 852 unsigned int vlen, unsigned flags); 853 asmlinkage long sys_process_vm_readv(pid_t pid, 854 const struct iovec __user *lvec, 855 unsigned long liovcnt, 856 const struct iovec __user *rvec, 857 unsigned long riovcnt, 858 unsigned long flags); 859 asmlinkage long sys_process_vm_writev(pid_t pid, 860 const struct iovec __user *lvec, 861 unsigned long liovcnt, 862 const struct iovec __user *rvec, 863 unsigned long riovcnt, 864 unsigned long flags); 865 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type, 866 unsigned long idx1, unsigned long idx2); 867 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags); 868 asmlinkage long sys_sched_setattr(pid_t pid, 869 struct sched_attr __user *attr, 870 unsigned int flags); 871 asmlinkage long sys_sched_getattr(pid_t pid, 872 struct sched_attr __user *attr, 873 unsigned int size, 874 unsigned int flags); 875 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname, 876 int newdfd, const char __user *newname, 877 unsigned int flags); 878 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, 879 const char __user *uargs); 880 asmlinkage long sys_getrandom(char __user *buf, size_t count, 881 unsigned int flags); 882 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags); 883 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size); 884 asmlinkage long sys_execveat(int dfd, const char __user *filename, 885 const char __user *const __user *argv, 886 const char __user *const __user *envp, int flags); 887 asmlinkage long sys_userfaultfd(int flags); 888 asmlinkage long sys_membarrier(int cmd, int flags); 889 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags); 890 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in, 891 int fd_out, loff_t __user *off_out, 892 size_t len, unsigned int flags); 893 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec, 894 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 895 rwf_t flags); 896 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec, 897 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 898 rwf_t flags); 899 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len, 900 unsigned long prot, int pkey); 901 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val); 902 asmlinkage long sys_pkey_free(int pkey); 903 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags, 904 unsigned mask, struct statx __user *buffer); 905 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len, 906 int flags, uint32_t sig); 907 908 /* 909 * Architecture-specific system calls 910 */ 911 912 /* arch/x86/kernel/ioport.c */ 913 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); 914 915 /* pciconfig: alpha, arm, arm64, ia64, sparc */ 916 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn, 917 unsigned long off, unsigned long len, 918 void __user *buf); 919 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn, 920 unsigned long off, unsigned long len, 921 void __user *buf); 922 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn); 923 924 /* powerpc */ 925 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc, 926 __u32 __user *ustatus); 927 asmlinkage long sys_spu_create(const char __user *name, 928 unsigned int flags, umode_t mode, int fd); 929 930 931 /* 932 * Deprecated system calls which are still defined in 933 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch 934 */ 935 936 /* __ARCH_WANT_SYSCALL_NO_AT */ 937 asmlinkage long sys_open(const char __user *filename, 938 int flags, umode_t mode); 939 asmlinkage long sys_link(const char __user *oldname, 940 const char __user *newname); 941 asmlinkage long sys_unlink(const char __user *pathname); 942 asmlinkage long sys_mknod(const char __user *filename, umode_t mode, 943 unsigned dev); 944 asmlinkage long sys_chmod(const char __user *filename, umode_t mode); 945 asmlinkage long sys_chown(const char __user *filename, 946 uid_t user, gid_t group); 947 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode); 948 asmlinkage long sys_rmdir(const char __user *pathname); 949 asmlinkage long sys_lchown(const char __user *filename, 950 uid_t user, gid_t group); 951 asmlinkage long sys_access(const char __user *filename, int mode); 952 asmlinkage long sys_rename(const char __user *oldname, 953 const char __user *newname); 954 asmlinkage long sys_symlink(const char __user *old, const char __user *new); 955 asmlinkage long sys_utimes(char __user *filename, 956 struct timeval __user *utimes); 957 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 958 asmlinkage long sys_stat64(const char __user *filename, 959 struct stat64 __user *statbuf); 960 asmlinkage long sys_lstat64(const char __user *filename, 961 struct stat64 __user *statbuf); 962 #endif 963 964 /* __ARCH_WANT_SYSCALL_NO_FLAGS */ 965 asmlinkage long sys_pipe(int __user *fildes); 966 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd); 967 asmlinkage long sys_epoll_create(int size); 968 asmlinkage long sys_inotify_init(void); 969 asmlinkage long sys_eventfd(unsigned int count); 970 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask); 971 972 /* __ARCH_WANT_SYSCALL_OFF_T */ 973 asmlinkage long sys_sendfile(int out_fd, int in_fd, 974 off_t __user *offset, size_t count); 975 asmlinkage long sys_newstat(const char __user *filename, 976 struct stat __user *statbuf); 977 asmlinkage long sys_newlstat(const char __user *filename, 978 struct stat __user *statbuf); 979 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice); 980 981 /* __ARCH_WANT_SYSCALL_DEPRECATED */ 982 asmlinkage long sys_alarm(unsigned int seconds); 983 asmlinkage long sys_getpgrp(void); 984 asmlinkage long sys_pause(void); 985 asmlinkage long sys_time(time_t __user *tloc); 986 asmlinkage long sys_utime(char __user *filename, 987 struct utimbuf __user *times); 988 asmlinkage long sys_creat(const char __user *pathname, umode_t mode); 989 asmlinkage long sys_getdents(unsigned int fd, 990 struct linux_dirent __user *dirent, 991 unsigned int count); 992 asmlinkage long sys_futimesat(int dfd, const char __user *filename, 993 struct timeval __user *utimes); 994 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp, 995 fd_set __user *exp, struct timeval __user *tvp); 996 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds, 997 int timeout); 998 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, 999 int maxevents, int timeout); 1000 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf); 1001 asmlinkage long sys_vfork(void); 1002 asmlinkage long sys_recv(int, void __user *, size_t, unsigned); 1003 asmlinkage long sys_send(int, void __user *, size_t, unsigned); 1004 asmlinkage long sys_bdflush(int func, long data); 1005 asmlinkage long sys_oldumount(char __user *name); 1006 asmlinkage long sys_uselib(const char __user *library); 1007 asmlinkage long sys_sysctl(struct __sysctl_args __user *args); 1008 asmlinkage long sys_sysfs(int option, 1009 unsigned long arg1, unsigned long arg2); 1010 asmlinkage long sys_fork(void); 1011 1012 /* obsolete: kernel/time/time.c */ 1013 asmlinkage long sys_stime(time_t __user *tptr); 1014 1015 /* obsolete: kernel/signal.c */ 1016 asmlinkage long sys_sigpending(old_sigset_t __user *uset); 1017 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set, 1018 old_sigset_t __user *oset); 1019 #ifdef CONFIG_OLD_SIGSUSPEND 1020 asmlinkage long sys_sigsuspend(old_sigset_t mask); 1021 #endif 1022 1023 #ifdef CONFIG_OLD_SIGSUSPEND3 1024 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask); 1025 #endif 1026 1027 #ifdef CONFIG_OLD_SIGACTION 1028 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *, 1029 struct old_sigaction __user *); 1030 #endif 1031 asmlinkage long sys_sgetmask(void); 1032 asmlinkage long sys_ssetmask(int newmask); 1033 asmlinkage long sys_signal(int sig, __sighandler_t handler); 1034 1035 /* obsolete: kernel/sched/core.c */ 1036 asmlinkage long sys_nice(int increment); 1037 1038 /* obsolete: kernel/kexec_file.c */ 1039 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd, 1040 unsigned long cmdline_len, 1041 const char __user *cmdline_ptr, 1042 unsigned long flags); 1043 1044 /* obsolete: kernel/exit.c */ 1045 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options); 1046 1047 /* obsolete: kernel/uid16.c */ 1048 #ifdef CONFIG_HAVE_UID16 1049 asmlinkage long sys_chown16(const char __user *filename, 1050 old_uid_t user, old_gid_t group); 1051 asmlinkage long sys_lchown16(const char __user *filename, 1052 old_uid_t user, old_gid_t group); 1053 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group); 1054 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid); 1055 asmlinkage long sys_setgid16(old_gid_t gid); 1056 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid); 1057 asmlinkage long sys_setuid16(old_uid_t uid); 1058 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid); 1059 asmlinkage long sys_getresuid16(old_uid_t __user *ruid, 1060 old_uid_t __user *euid, old_uid_t __user *suid); 1061 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid); 1062 asmlinkage long sys_getresgid16(old_gid_t __user *rgid, 1063 old_gid_t __user *egid, old_gid_t __user *sgid); 1064 asmlinkage long sys_setfsuid16(old_uid_t uid); 1065 asmlinkage long sys_setfsgid16(old_gid_t gid); 1066 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist); 1067 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist); 1068 asmlinkage long sys_getuid16(void); 1069 asmlinkage long sys_geteuid16(void); 1070 asmlinkage long sys_getgid16(void); 1071 asmlinkage long sys_getegid16(void); 1072 #endif 1073 1074 /* obsolete: net/socket.c */ 1075 asmlinkage long sys_socketcall(int call, unsigned long __user *args); 1076 1077 /* obsolete: fs/stat.c */ 1078 asmlinkage long sys_stat(const char __user *filename, 1079 struct __old_kernel_stat __user *statbuf); 1080 asmlinkage long sys_lstat(const char __user *filename, 1081 struct __old_kernel_stat __user *statbuf); 1082 asmlinkage long sys_fstat(unsigned int fd, 1083 struct __old_kernel_stat __user *statbuf); 1084 asmlinkage long sys_readlink(const char __user *path, 1085 char __user *buf, int bufsiz); 1086 1087 /* obsolete: fs/select.c */ 1088 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg); 1089 1090 /* obsolete: fs/readdir.c */ 1091 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int); 1092 1093 /* obsolete: kernel/sys.c */ 1094 asmlinkage long sys_gethostname(char __user *name, int len); 1095 asmlinkage long sys_uname(struct old_utsname __user *); 1096 asmlinkage long sys_olduname(struct oldold_utsname __user *); 1097 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT 1098 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim); 1099 #endif 1100 1101 /* obsolete: ipc */ 1102 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second, 1103 unsigned long third, void __user *ptr, long fifth); 1104 1105 /* obsolete: mm/ */ 1106 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len, 1107 unsigned long prot, unsigned long flags, 1108 unsigned long fd, unsigned long pgoff); 1109 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg); 1110 1111 1112 /* 1113 * Not a real system call, but a placeholder for syscalls which are 1114 * not implemented -- see kernel/sys_ni.c 1115 */ 1116 asmlinkage long sys_ni_syscall(void); 1117 1118 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 1119 1120 1121 /* 1122 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly. 1123 * Instead, use one of the functions which work equivalently, such as 1124 * the ksys_xyzyyz() functions prototyped below. 1125 */ 1126 1127 int ksys_mount(char __user *dev_name, char __user *dir_name, char __user *type, 1128 unsigned long flags, void __user *data); 1129 int ksys_umount(char __user *name, int flags); 1130 int ksys_dup(unsigned int fildes); 1131 int ksys_chroot(const char __user *filename); 1132 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count); 1133 int ksys_chdir(const char __user *filename); 1134 int ksys_fchmod(unsigned int fd, umode_t mode); 1135 int ksys_fchown(unsigned int fd, uid_t user, gid_t group); 1136 int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent, 1137 unsigned int count); 1138 int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg); 1139 off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence); 1140 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count); 1141 void ksys_sync(void); 1142 int ksys_unshare(unsigned long unshare_flags); 1143 int ksys_setsid(void); 1144 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 1145 unsigned int flags); 1146 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count, 1147 loff_t pos); 1148 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf, 1149 size_t count, loff_t pos); 1150 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len); 1151 #ifdef CONFIG_ADVISE_SYSCALLS 1152 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 1153 #else 1154 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, 1155 int advice) 1156 { 1157 return -EINVAL; 1158 } 1159 #endif 1160 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len, 1161 unsigned long prot, unsigned long flags, 1162 unsigned long fd, unsigned long pgoff); 1163 ssize_t ksys_readahead(int fd, loff_t offset, size_t count); 1164 1165 /* 1166 * The following kernel syscall equivalents are just wrappers to fs-internal 1167 * functions. Therefore, provide stubs to be inlined at the callsites. 1168 */ 1169 extern long do_unlinkat(int dfd, struct filename *name); 1170 1171 static inline long ksys_unlink(const char __user *pathname) 1172 { 1173 return do_unlinkat(AT_FDCWD, getname(pathname)); 1174 } 1175 1176 extern long do_rmdir(int dfd, const char __user *pathname); 1177 1178 static inline long ksys_rmdir(const char __user *pathname) 1179 { 1180 return do_rmdir(AT_FDCWD, pathname); 1181 } 1182 1183 extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode); 1184 1185 static inline long ksys_mkdir(const char __user *pathname, umode_t mode) 1186 { 1187 return do_mkdirat(AT_FDCWD, pathname, mode); 1188 } 1189 1190 extern long do_symlinkat(const char __user *oldname, int newdfd, 1191 const char __user *newname); 1192 1193 static inline long ksys_symlink(const char __user *oldname, 1194 const char __user *newname) 1195 { 1196 return do_symlinkat(oldname, AT_FDCWD, newname); 1197 } 1198 1199 extern long do_mknodat(int dfd, const char __user *filename, umode_t mode, 1200 unsigned int dev); 1201 1202 static inline long ksys_mknod(const char __user *filename, umode_t mode, 1203 unsigned int dev) 1204 { 1205 return do_mknodat(AT_FDCWD, filename, mode, dev); 1206 } 1207 1208 extern int do_linkat(int olddfd, const char __user *oldname, int newdfd, 1209 const char __user *newname, int flags); 1210 1211 static inline long ksys_link(const char __user *oldname, 1212 const char __user *newname) 1213 { 1214 return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0); 1215 } 1216 1217 extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode); 1218 1219 static inline int ksys_chmod(const char __user *filename, umode_t mode) 1220 { 1221 return do_fchmodat(AT_FDCWD, filename, mode); 1222 } 1223 1224 extern long do_faccessat(int dfd, const char __user *filename, int mode); 1225 1226 static inline long ksys_access(const char __user *filename, int mode) 1227 { 1228 return do_faccessat(AT_FDCWD, filename, mode); 1229 } 1230 1231 extern int do_fchownat(int dfd, const char __user *filename, uid_t user, 1232 gid_t group, int flag); 1233 1234 static inline long ksys_chown(const char __user *filename, uid_t user, 1235 gid_t group) 1236 { 1237 return do_fchownat(AT_FDCWD, filename, user, group, 0); 1238 } 1239 1240 static inline long ksys_lchown(const char __user *filename, uid_t user, 1241 gid_t group) 1242 { 1243 return do_fchownat(AT_FDCWD, filename, user, group, 1244 AT_SYMLINK_NOFOLLOW); 1245 } 1246 1247 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small); 1248 1249 static inline long ksys_ftruncate(unsigned int fd, unsigned long length) 1250 { 1251 return do_sys_ftruncate(fd, length, 1); 1252 } 1253 1254 extern int __close_fd(struct files_struct *files, unsigned int fd); 1255 1256 /* 1257 * In contrast to sys_close(), this stub does not check whether the syscall 1258 * should or should not be restarted, but returns the raw error codes from 1259 * __close_fd(). 1260 */ 1261 static inline int ksys_close(unsigned int fd) 1262 { 1263 return __close_fd(current->files, fd); 1264 } 1265 1266 extern long do_sys_open(int dfd, const char __user *filename, int flags, 1267 umode_t mode); 1268 1269 static inline long ksys_open(const char __user *filename, int flags, 1270 umode_t mode) 1271 { 1272 if (force_o_largefile()) 1273 flags |= O_LARGEFILE; 1274 return do_sys_open(AT_FDCWD, filename, flags, mode); 1275 } 1276 1277 extern long do_sys_truncate(const char __user *pathname, loff_t length); 1278 1279 static inline long ksys_truncate(const char __user *pathname, loff_t length) 1280 { 1281 return do_sys_truncate(pathname, length); 1282 } 1283 1284 #endif 1285