1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * syscalls.h - Linux syscall interfaces (non-arch-specific) 4 * 5 * Copyright (c) 2004 Randy Dunlap 6 * Copyright (c) 2004 Open Source Development Labs 7 */ 8 9 #ifndef _LINUX_SYSCALLS_H 10 #define _LINUX_SYSCALLS_H 11 12 struct __aio_sigset; 13 struct epoll_event; 14 struct iattr; 15 struct inode; 16 struct iocb; 17 struct io_event; 18 struct iovec; 19 struct __kernel_old_itimerval; 20 struct kexec_segment; 21 struct linux_dirent; 22 struct linux_dirent64; 23 struct list_head; 24 struct mmap_arg_struct; 25 struct msgbuf; 26 struct user_msghdr; 27 struct mmsghdr; 28 struct msqid_ds; 29 struct new_utsname; 30 struct nfsctl_arg; 31 struct __old_kernel_stat; 32 struct oldold_utsname; 33 struct old_utsname; 34 struct pollfd; 35 struct rlimit; 36 struct rlimit64; 37 struct rusage; 38 struct sched_param; 39 struct sched_attr; 40 struct sel_arg_struct; 41 struct semaphore; 42 struct sembuf; 43 struct shmid_ds; 44 struct sockaddr; 45 struct stat; 46 struct stat64; 47 struct statfs; 48 struct statfs64; 49 struct statx; 50 struct sysinfo; 51 struct timespec; 52 struct __kernel_old_timeval; 53 struct __kernel_timex; 54 struct timezone; 55 struct tms; 56 struct utimbuf; 57 struct mq_attr; 58 struct compat_stat; 59 struct old_timeval32; 60 struct robust_list_head; 61 struct futex_waitv; 62 struct old_linux_dirent; 63 struct perf_event_attr; 64 struct file_handle; 65 struct sigaltstack; 66 struct rseq; 67 union bpf_attr; 68 struct io_uring_params; 69 struct clone_args; 70 struct open_how; 71 struct mount_attr; 72 struct landlock_ruleset_attr; 73 struct lsm_ctx; 74 enum landlock_rule_type; 75 struct cachestat_range; 76 struct cachestat; 77 struct statmount; 78 struct mnt_id_req; 79 struct ns_id_req; 80 struct xattr_args; 81 struct file_attr; 82 83 #include <linux/types.h> 84 #include <linux/aio_abi.h> 85 #include <linux/capability.h> 86 #include <linux/signal.h> 87 #include <linux/list.h> 88 #include <linux/bug.h> 89 #include <linux/sem.h> 90 #include <asm/siginfo.h> 91 #include <linux/unistd.h> 92 #include <linux/quota.h> 93 #include <linux/key.h> 94 #include <linux/personality.h> 95 #include <trace/syscall.h> 96 97 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 98 /* 99 * It may be useful for an architecture to override the definitions of the 100 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a 101 * different calling convention for syscalls. To allow for that, the prototypes 102 * for the sys_*() functions below will *not* be included if 103 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 104 */ 105 #include <asm/syscall_wrapper.h> 106 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 107 108 /* 109 * __MAP - apply a macro to syscall arguments 110 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to 111 * m(t1, a1), m(t2, a2), ..., m(tn, an) 112 * The first argument must be equal to the amount of type/name 113 * pairs given. Note that this list of pairs (i.e. the arguments 114 * of __MAP starting at the third one) is in the same format as 115 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n> 116 */ 117 #define __MAP0(m,...) 118 #define __MAP1(m,t,a,...) m(t,a) 119 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__) 120 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__) 121 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__) 122 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__) 123 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__) 124 #define __MAP(n,...) __MAP##n(__VA_ARGS__) 125 126 #define __SC_DECL(t, a) t a 127 #define __TYPE_AS(t, v) __same_type((__force t)0, v) 128 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L)) 129 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL)) 130 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL)) 131 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a 132 #define __SC_CAST(t, a) (__force t) a 133 #define __SC_TYPE(t, a) t 134 #define __SC_ARGS(t, a) a 135 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long)) 136 137 #ifdef CONFIG_FTRACE_SYSCALLS 138 #define __SC_STR_ADECL(t, a) #a 139 #define __SC_STR_TDECL(t, a) #t 140 141 extern struct trace_event_class event_class_syscall_enter; 142 extern struct trace_event_class event_class_syscall_exit; 143 extern struct trace_event_functions enter_syscall_print_funcs; 144 extern struct trace_event_functions exit_syscall_print_funcs; 145 146 #define SYSCALL_TRACE_ENTER_EVENT(sname) \ 147 static struct syscall_metadata __syscall_meta_##sname; \ 148 static struct trace_event_call __used \ 149 event_enter_##sname = { \ 150 .class = &event_class_syscall_enter, \ 151 { \ 152 .name = "sys_enter"#sname, \ 153 }, \ 154 .event.funcs = &enter_syscall_print_funcs, \ 155 .data = (void *)&__syscall_meta_##sname,\ 156 .flags = TRACE_EVENT_FL_CAP_ANY, \ 157 }; \ 158 static struct trace_event_call __used \ 159 __section("_ftrace_events") \ 160 *__event_enter_##sname = &event_enter_##sname; 161 162 #define SYSCALL_TRACE_EXIT_EVENT(sname) \ 163 static struct syscall_metadata __syscall_meta_##sname; \ 164 static struct trace_event_call __used \ 165 event_exit_##sname = { \ 166 .class = &event_class_syscall_exit, \ 167 { \ 168 .name = "sys_exit"#sname, \ 169 }, \ 170 .event.funcs = &exit_syscall_print_funcs, \ 171 .data = (void *)&__syscall_meta_##sname,\ 172 .flags = TRACE_EVENT_FL_CAP_ANY, \ 173 }; \ 174 static struct trace_event_call __used \ 175 __section("_ftrace_events") \ 176 *__event_exit_##sname = &event_exit_##sname; 177 178 #define SYSCALL_METADATA(sname, nb, ...) \ 179 static const char *types_##sname[] = { \ 180 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \ 181 }; \ 182 static const char *args_##sname[] = { \ 183 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \ 184 }; \ 185 SYSCALL_TRACE_ENTER_EVENT(sname); \ 186 SYSCALL_TRACE_EXIT_EVENT(sname); \ 187 static struct syscall_metadata __used \ 188 __syscall_meta_##sname = { \ 189 .name = "sys"#sname, \ 190 .syscall_nr = -1, /* Filled in at boot */ \ 191 .nb_args = nb, \ 192 .types = nb ? types_##sname : NULL, \ 193 .args = nb ? args_##sname : NULL, \ 194 .enter_event = &event_enter_##sname, \ 195 .exit_event = &event_exit_##sname, \ 196 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \ 197 }; \ 198 static struct syscall_metadata __used \ 199 __section("__syscalls_metadata") \ 200 *__p_syscall_meta_##sname = &__syscall_meta_##sname; 201 202 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 203 { 204 return tp_event->class == &event_class_syscall_enter || 205 tp_event->class == &event_class_syscall_exit; 206 } 207 208 #else 209 #define SYSCALL_METADATA(sname, nb, ...) 210 211 static inline int is_syscall_trace_event(struct trace_event_call *tp_event) 212 { 213 return 0; 214 } 215 #endif 216 217 #ifndef SYSCALL_DEFINE0 218 #define SYSCALL_DEFINE0(sname) \ 219 SYSCALL_METADATA(_##sname, 0); \ 220 asmlinkage long sys_##sname(void); \ 221 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \ 222 asmlinkage long sys_##sname(void) 223 #endif /* SYSCALL_DEFINE0 */ 224 225 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__) 226 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__) 227 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__) 228 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__) 229 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__) 230 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) 231 232 #define SYSCALL_DEFINE_MAXARGS 6 233 234 #define SYSCALL_DEFINEx(x, sname, ...) \ 235 SYSCALL_METADATA(sname, x, __VA_ARGS__) \ 236 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__) 237 238 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__) 239 240 /* 241 * The asmlinkage stub is aliased to a function named __se_sys_*() which 242 * sign-extends 32-bit ints to longs whenever needed. The actual work is 243 * done within __do_sys_*(). 244 */ 245 #ifndef __SYSCALL_DEFINEx 246 #define __SYSCALL_DEFINEx(x, name, ...) \ 247 __diag_push(); \ 248 __diag_ignore(GCC, 8, "-Wattribute-alias", \ 249 "Type aliasing is used to sanitize syscall arguments");\ 250 __diag_ignore(clang, 23, "-Wunknown-warning-option", \ 251 "Avoid breaking versions without -Wattribute-alias");\ 252 __diag_ignore(clang, 23, "-Wattribute-alias", \ 253 "Type aliasing is used to sanitize syscall arguments");\ 254 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ 255 __attribute__((alias(__stringify(__se_sys##name)))); \ 256 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \ 257 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ 258 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ 259 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ 260 { \ 261 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\ 262 __MAP(x,__SC_TEST,__VA_ARGS__); \ 263 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \ 264 return ret; \ 265 } \ 266 __diag_pop(); \ 267 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) 268 #endif /* __SYSCALL_DEFINEx */ 269 270 /* For split 64-bit arguments on 32-bit architectures */ 271 #ifdef __LITTLE_ENDIAN 272 #define SC_ARG64(name) u32, name##_lo, u32, name##_hi 273 #else 274 #define SC_ARG64(name) u32, name##_hi, u32, name##_lo 275 #endif 276 #define SC_VAL64(type, name) ((type) name##_hi << 32 | name##_lo) 277 278 #ifdef CONFIG_COMPAT 279 #define SYSCALL32_DEFINE0 COMPAT_SYSCALL_DEFINE0 280 #define SYSCALL32_DEFINE1 COMPAT_SYSCALL_DEFINE1 281 #define SYSCALL32_DEFINE2 COMPAT_SYSCALL_DEFINE2 282 #define SYSCALL32_DEFINE3 COMPAT_SYSCALL_DEFINE3 283 #define SYSCALL32_DEFINE4 COMPAT_SYSCALL_DEFINE4 284 #define SYSCALL32_DEFINE5 COMPAT_SYSCALL_DEFINE5 285 #define SYSCALL32_DEFINE6 COMPAT_SYSCALL_DEFINE6 286 #else 287 #define SYSCALL32_DEFINE0 SYSCALL_DEFINE0 288 #define SYSCALL32_DEFINE1 SYSCALL_DEFINE1 289 #define SYSCALL32_DEFINE2 SYSCALL_DEFINE2 290 #define SYSCALL32_DEFINE3 SYSCALL_DEFINE3 291 #define SYSCALL32_DEFINE4 SYSCALL_DEFINE4 292 #define SYSCALL32_DEFINE5 SYSCALL_DEFINE5 293 #define SYSCALL32_DEFINE6 SYSCALL_DEFINE6 294 #endif 295 296 /* 297 * These syscall function prototypes are kept in the same order as 298 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below, 299 * followed by deprecated or obsolete system calls. 300 * 301 * Please note that these prototypes here are only provided for information 302 * purposes, for static analysis, and for linking from the syscall table. 303 * These functions should not be called elsewhere from kernel code. 304 * 305 * As the syscall calling convention may be different from the default 306 * for architectures overriding the syscall calling convention, do not 307 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 308 */ 309 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 310 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx); 311 asmlinkage long sys_io_destroy(aio_context_t ctx); 312 asmlinkage long sys_io_submit(aio_context_t, long, 313 struct iocb __user * __user *); 314 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb, 315 struct io_event __user *result); 316 asmlinkage long sys_io_getevents(aio_context_t ctx_id, 317 long min_nr, 318 long nr, 319 struct io_event __user *events, 320 struct __kernel_timespec __user *timeout); 321 asmlinkage long sys_io_getevents_time32(__u32 ctx_id, 322 __s32 min_nr, 323 __s32 nr, 324 struct io_event __user *events, 325 struct old_timespec32 __user *timeout); 326 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id, 327 long min_nr, 328 long nr, 329 struct io_event __user *events, 330 struct __kernel_timespec __user *timeout, 331 const struct __aio_sigset __user *sig); 332 asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id, 333 long min_nr, 334 long nr, 335 struct io_event __user *events, 336 struct old_timespec32 __user *timeout, 337 const struct __aio_sigset __user *sig); 338 asmlinkage long sys_io_uring_setup(u32 entries, 339 struct io_uring_params __user *p); 340 asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit, 341 u32 min_complete, u32 flags, 342 const void __user *argp, size_t argsz); 343 asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op, 344 void __user *arg, unsigned int nr_args); 345 asmlinkage long sys_setxattr(const char __user *path, const char __user *name, 346 const void __user *value, size_t size, int flags); 347 asmlinkage long sys_setxattrat(int dfd, const char __user *path, unsigned int at_flags, 348 const char __user *name, 349 const struct xattr_args __user *args, size_t size); 350 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name, 351 const void __user *value, size_t size, int flags); 352 asmlinkage long sys_fsetxattr(int fd, const char __user *name, 353 const void __user *value, size_t size, int flags); 354 asmlinkage long sys_getxattr(const char __user *path, const char __user *name, 355 void __user *value, size_t size); 356 asmlinkage long sys_getxattrat(int dfd, const char __user *path, unsigned int at_flags, 357 const char __user *name, 358 struct xattr_args __user *args, size_t size); 359 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name, 360 void __user *value, size_t size); 361 asmlinkage long sys_fgetxattr(int fd, const char __user *name, 362 void __user *value, size_t size); 363 asmlinkage long sys_listxattr(const char __user *path, char __user *list, 364 size_t size); 365 asmlinkage long sys_listxattrat(int dfd, const char __user *path, 366 unsigned int at_flags, 367 char __user *list, size_t size); 368 asmlinkage long sys_llistxattr(const char __user *path, char __user *list, 369 size_t size); 370 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size); 371 asmlinkage long sys_removexattr(const char __user *path, 372 const char __user *name); 373 asmlinkage long sys_removexattrat(int dfd, const char __user *path, 374 unsigned int at_flags, 375 const char __user *name); 376 asmlinkage long sys_lremovexattr(const char __user *path, 377 const char __user *name); 378 asmlinkage long sys_fremovexattr(int fd, const char __user *name); 379 asmlinkage long sys_file_getattr(int dfd, const char __user *filename, 380 struct file_attr __user *attr, size_t usize, 381 unsigned int at_flags); 382 asmlinkage long sys_file_setattr(int dfd, const char __user *filename, 383 struct file_attr __user *attr, size_t usize, 384 unsigned int at_flags); 385 asmlinkage long sys_getcwd(char __user *buf, unsigned long size); 386 asmlinkage long sys_eventfd2(unsigned int count, int flags); 387 asmlinkage long sys_epoll_create1(int flags); 388 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, 389 struct epoll_event __user *event); 390 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events, 391 int maxevents, int timeout, 392 const sigset_t __user *sigmask, 393 size_t sigsetsize); 394 asmlinkage long sys_epoll_pwait2(int epfd, struct epoll_event __user *events, 395 int maxevents, 396 const struct __kernel_timespec __user *timeout, 397 const sigset_t __user *sigmask, 398 size_t sigsetsize); 399 asmlinkage long sys_dup(unsigned int fildes); 400 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags); 401 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); 402 #if BITS_PER_LONG == 32 403 asmlinkage long sys_fcntl64(unsigned int fd, 404 unsigned int cmd, unsigned long arg); 405 #endif 406 asmlinkage long sys_inotify_init1(int flags); 407 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, 408 u32 mask); 409 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd); 410 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, 411 unsigned long arg); 412 asmlinkage long sys_ioprio_set(int which, int who, int ioprio); 413 asmlinkage long sys_ioprio_get(int which, int who); 414 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd); 415 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode, 416 unsigned dev); 417 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode); 418 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag); 419 asmlinkage long sys_symlinkat(const char __user * oldname, 420 int newdfd, const char __user * newname); 421 asmlinkage long sys_linkat(int olddfd, const char __user *oldname, 422 int newdfd, const char __user *newname, int flags); 423 asmlinkage long sys_renameat(int olddfd, const char __user * oldname, 424 int newdfd, const char __user * newname); 425 asmlinkage long sys_umount(char __user *name, int flags); 426 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name, 427 char __user *type, unsigned long flags, 428 void __user *data); 429 asmlinkage long sys_pivot_root(const char __user *new_root, 430 const char __user *put_old); 431 asmlinkage long sys_statfs(const char __user * path, 432 struct statfs __user *buf); 433 asmlinkage long sys_statfs64(const char __user *path, size_t sz, 434 struct statfs64 __user *buf); 435 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf); 436 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz, 437 struct statfs64 __user *buf); 438 asmlinkage long sys_statmount(const struct mnt_id_req __user *req, 439 struct statmount __user *buf, size_t bufsize, 440 unsigned int flags); 441 asmlinkage long sys_listmount(const struct mnt_id_req __user *req, 442 u64 __user *mnt_ids, size_t nr_mnt_ids, 443 unsigned int flags); 444 asmlinkage long sys_listns(const struct ns_id_req __user *req, 445 u64 __user *ns_ids, size_t nr_ns_ids, 446 unsigned int flags); 447 asmlinkage long sys_truncate(const char __user *path, long length); 448 asmlinkage long sys_ftruncate(unsigned int fd, off_t length); 449 #if BITS_PER_LONG == 32 450 asmlinkage long sys_truncate64(const char __user *path, loff_t length); 451 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length); 452 #endif 453 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len); 454 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode); 455 asmlinkage long sys_faccessat2(int dfd, const char __user *filename, int mode, 456 int flags); 457 asmlinkage long sys_chdir(const char __user *filename); 458 asmlinkage long sys_fchdir(unsigned int fd); 459 asmlinkage long sys_chroot(const char __user *filename); 460 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode); 461 asmlinkage long sys_fchmodat(int dfd, const char __user *filename, 462 umode_t mode); 463 asmlinkage long sys_fchmodat2(int dfd, const char __user *filename, 464 umode_t mode, unsigned int flags); 465 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user, 466 gid_t group, int flag); 467 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group); 468 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags, 469 umode_t mode); 470 asmlinkage long sys_openat2(int dfd, const char __user *filename, 471 struct open_how __user *how, size_t size); 472 asmlinkage long sys_close(unsigned int fd); 473 asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd, 474 unsigned int flags); 475 asmlinkage long sys_vhangup(void); 476 asmlinkage long sys_pipe2(int __user *fildes, int flags); 477 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special, 478 qid_t id, void __user *addr); 479 asmlinkage long sys_quotactl_fd(unsigned int fd, unsigned int cmd, qid_t id, 480 void __user *addr); 481 asmlinkage long sys_getdents64(unsigned int fd, 482 struct linux_dirent64 __user *dirent, 483 unsigned int count); 484 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high, 485 unsigned long offset_low, loff_t __user *result, 486 unsigned int whence); 487 asmlinkage long sys_lseek(unsigned int fd, off_t offset, 488 unsigned int whence); 489 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count); 490 asmlinkage long sys_write(unsigned int fd, const char __user *buf, 491 size_t count); 492 asmlinkage long sys_readv(unsigned long fd, 493 const struct iovec __user *vec, 494 unsigned long vlen); 495 asmlinkage long sys_writev(unsigned long fd, 496 const struct iovec __user *vec, 497 unsigned long vlen); 498 asmlinkage long sys_pread64(unsigned int fd, char __user *buf, 499 size_t count, loff_t pos); 500 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf, 501 size_t count, loff_t pos); 502 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec, 503 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 504 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec, 505 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 506 asmlinkage long sys_sendfile64(int out_fd, int in_fd, 507 loff_t __user *offset, size_t count); 508 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *, 509 fd_set __user *, struct __kernel_timespec __user *, 510 void __user *); 511 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *, 512 fd_set __user *, struct old_timespec32 __user *, 513 void __user *); 514 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int, 515 struct __kernel_timespec __user *, const sigset_t __user *, 516 size_t); 517 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int, 518 struct old_timespec32 __user *, const sigset_t __user *, 519 size_t); 520 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags); 521 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov, 522 unsigned long nr_segs, unsigned int flags); 523 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in, 524 int fd_out, loff_t __user *off_out, 525 size_t len, unsigned int flags); 526 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags); 527 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf, 528 int bufsiz); 529 asmlinkage long sys_newfstatat(int dfd, const char __user *filename, 530 struct stat __user *statbuf, int flag); 531 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf); 532 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 533 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf); 534 asmlinkage long sys_fstatat64(int dfd, const char __user *filename, 535 struct stat64 __user *statbuf, int flag); 536 #endif 537 asmlinkage long sys_sync(void); 538 asmlinkage long sys_fsync(unsigned int fd); 539 asmlinkage long sys_fdatasync(unsigned int fd); 540 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags, 541 loff_t offset, loff_t nbytes); 542 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 543 unsigned int flags); 544 asmlinkage long sys_timerfd_create(int clockid, int flags); 545 asmlinkage long sys_timerfd_settime(int ufd, int flags, 546 const struct __kernel_itimerspec __user *utmr, 547 struct __kernel_itimerspec __user *otmr); 548 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr); 549 asmlinkage long sys_timerfd_gettime32(int ufd, 550 struct old_itimerspec32 __user *otmr); 551 asmlinkage long sys_timerfd_settime32(int ufd, int flags, 552 const struct old_itimerspec32 __user *utmr, 553 struct old_itimerspec32 __user *otmr); 554 asmlinkage long sys_utimensat(int dfd, const char __user *filename, 555 struct __kernel_timespec __user *utimes, 556 int flags); 557 asmlinkage long sys_utimensat_time32(unsigned int dfd, 558 const char __user *filename, 559 struct old_timespec32 __user *t, int flags); 560 asmlinkage long sys_acct(const char __user *name); 561 asmlinkage long sys_capget(cap_user_header_t header, 562 cap_user_data_t dataptr); 563 asmlinkage long sys_capset(cap_user_header_t header, 564 const cap_user_data_t data); 565 asmlinkage long sys_personality(unsigned int personality); 566 asmlinkage long sys_exit(int error_code); 567 asmlinkage long sys_exit_group(int error_code); 568 asmlinkage long sys_waitid(int which, pid_t pid, 569 struct siginfo __user *infop, 570 int options, struct rusage __user *ru); 571 asmlinkage long sys_set_tid_address(int __user *tidptr); 572 asmlinkage long sys_unshare(unsigned long unshare_flags); 573 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val, 574 const struct __kernel_timespec __user *utime, 575 u32 __user *uaddr2, u32 val3); 576 asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val, 577 const struct old_timespec32 __user *utime, 578 u32 __user *uaddr2, u32 val3); 579 asmlinkage long sys_get_robust_list(int pid, 580 struct robust_list_head __user * __user *head_ptr, 581 size_t __user *len_ptr); 582 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, 583 size_t len); 584 585 asmlinkage long sys_futex_waitv(struct futex_waitv __user *waiters, 586 unsigned int nr_futexes, unsigned int flags, 587 struct __kernel_timespec __user *timeout, clockid_t clockid); 588 589 asmlinkage long sys_futex_wake(void __user *uaddr, unsigned long mask, int nr, unsigned int flags); 590 591 asmlinkage long sys_futex_wait(void __user *uaddr, unsigned long val, unsigned long mask, 592 unsigned int flags, struct __kernel_timespec __user *timespec, 593 clockid_t clockid); 594 595 asmlinkage long sys_futex_requeue(struct futex_waitv __user *waiters, 596 unsigned int flags, int nr_wake, int nr_requeue); 597 598 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp, 599 struct __kernel_timespec __user *rmtp); 600 asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp, 601 struct old_timespec32 __user *rmtp); 602 asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value); 603 asmlinkage long sys_setitimer(int which, 604 struct __kernel_old_itimerval __user *value, 605 struct __kernel_old_itimerval __user *ovalue); 606 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments, 607 struct kexec_segment __user *segments, 608 unsigned long flags); 609 asmlinkage long sys_init_module(void __user *umod, unsigned long len, 610 const char __user *uargs); 611 asmlinkage long sys_delete_module(const char __user *name_user, 612 unsigned int flags); 613 asmlinkage long sys_timer_create(clockid_t which_clock, 614 struct sigevent __user *timer_event_spec, 615 timer_t __user * created_timer_id); 616 asmlinkage long sys_timer_gettime(timer_t timer_id, 617 struct __kernel_itimerspec __user *setting); 618 asmlinkage long sys_timer_getoverrun(timer_t timer_id); 619 asmlinkage long sys_timer_settime(timer_t timer_id, int flags, 620 const struct __kernel_itimerspec __user *new_setting, 621 struct __kernel_itimerspec __user *old_setting); 622 asmlinkage long sys_timer_delete(timer_t timer_id); 623 asmlinkage long sys_clock_settime(clockid_t which_clock, 624 const struct __kernel_timespec __user *tp); 625 asmlinkage long sys_clock_gettime(clockid_t which_clock, 626 struct __kernel_timespec __user *tp); 627 asmlinkage long sys_clock_getres(clockid_t which_clock, 628 struct __kernel_timespec __user *tp); 629 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags, 630 const struct __kernel_timespec __user *rqtp, 631 struct __kernel_timespec __user *rmtp); 632 asmlinkage long sys_timer_gettime32(timer_t timer_id, 633 struct old_itimerspec32 __user *setting); 634 asmlinkage long sys_timer_settime32(timer_t timer_id, int flags, 635 struct old_itimerspec32 __user *new, 636 struct old_itimerspec32 __user *old); 637 asmlinkage long sys_clock_settime32(clockid_t which_clock, 638 struct old_timespec32 __user *tp); 639 asmlinkage long sys_clock_gettime32(clockid_t which_clock, 640 struct old_timespec32 __user *tp); 641 asmlinkage long sys_clock_getres_time32(clockid_t which_clock, 642 struct old_timespec32 __user *tp); 643 asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags, 644 struct old_timespec32 __user *rqtp, 645 struct old_timespec32 __user *rmtp); 646 asmlinkage long sys_syslog(int type, char __user *buf, int len); 647 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, 648 unsigned long data); 649 asmlinkage long sys_sched_setparam(pid_t pid, 650 struct sched_param __user *param); 651 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy, 652 struct sched_param __user *param); 653 asmlinkage long sys_sched_getscheduler(pid_t pid); 654 asmlinkage long sys_sched_getparam(pid_t pid, 655 struct sched_param __user *param); 656 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len, 657 unsigned long __user *user_mask_ptr); 658 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len, 659 unsigned long __user *user_mask_ptr); 660 asmlinkage long sys_sched_yield(void); 661 asmlinkage long sys_sched_get_priority_max(int policy); 662 asmlinkage long sys_sched_get_priority_min(int policy); 663 asmlinkage long sys_sched_rr_get_interval(pid_t pid, 664 struct __kernel_timespec __user *interval); 665 asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid, 666 struct old_timespec32 __user *interval); 667 asmlinkage long sys_restart_syscall(void); 668 asmlinkage long sys_kill(pid_t pid, int sig); 669 asmlinkage long sys_tkill(pid_t pid, int sig); 670 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig); 671 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss, 672 struct sigaltstack __user *uoss); 673 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize); 674 #ifndef CONFIG_ODD_RT_SIGACTION 675 asmlinkage long sys_rt_sigaction(int, 676 const struct sigaction __user *, 677 struct sigaction __user *, 678 size_t); 679 #endif 680 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set, 681 sigset_t __user *oset, size_t sigsetsize); 682 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize); 683 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese, 684 siginfo_t __user *uinfo, 685 const struct __kernel_timespec __user *uts, 686 size_t sigsetsize); 687 asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese, 688 siginfo_t __user *uinfo, 689 const struct old_timespec32 __user *uts, 690 size_t sigsetsize); 691 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo); 692 asmlinkage long sys_setpriority(int which, int who, int niceval); 693 asmlinkage long sys_getpriority(int which, int who); 694 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, 695 void __user *arg); 696 asmlinkage long sys_setregid(gid_t rgid, gid_t egid); 697 asmlinkage long sys_setgid(gid_t gid); 698 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid); 699 asmlinkage long sys_setuid(uid_t uid); 700 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid); 701 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid); 702 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid); 703 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid); 704 asmlinkage long sys_setfsuid(uid_t uid); 705 asmlinkage long sys_setfsgid(gid_t gid); 706 asmlinkage long sys_times(struct tms __user *tbuf); 707 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid); 708 asmlinkage long sys_getpgid(pid_t pid); 709 asmlinkage long sys_getsid(pid_t pid); 710 asmlinkage long sys_setsid(void); 711 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist); 712 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist); 713 asmlinkage long sys_newuname(struct new_utsname __user *name); 714 asmlinkage long sys_sethostname(char __user *name, int len); 715 asmlinkage long sys_setdomainname(char __user *name, int len); 716 asmlinkage long sys_getrlimit(unsigned int resource, 717 struct rlimit __user *rlim); 718 asmlinkage long sys_setrlimit(unsigned int resource, 719 struct rlimit __user *rlim); 720 asmlinkage long sys_getrusage(int who, struct rusage __user *ru); 721 asmlinkage long sys_umask(int mask); 722 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, 723 unsigned long arg4, unsigned long arg5); 724 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, void __user *cache); 725 asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv, 726 struct timezone __user *tz); 727 asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv, 728 struct timezone __user *tz); 729 asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p); 730 asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p); 731 asmlinkage long sys_getpid(void); 732 asmlinkage long sys_getppid(void); 733 asmlinkage long sys_getuid(void); 734 asmlinkage long sys_geteuid(void); 735 asmlinkage long sys_getgid(void); 736 asmlinkage long sys_getegid(void); 737 asmlinkage long sys_gettid(void); 738 asmlinkage long sys_sysinfo(struct sysinfo __user *info); 739 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr); 740 asmlinkage long sys_mq_unlink(const char __user *name); 741 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); 742 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); 743 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification); 744 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat); 745 asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes, 746 char __user *u_msg_ptr, 747 unsigned int msg_len, unsigned int __user *u_msg_prio, 748 const struct old_timespec32 __user *u_abs_timeout); 749 asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes, 750 const char __user *u_msg_ptr, 751 unsigned int msg_len, unsigned int msg_prio, 752 const struct old_timespec32 __user *u_abs_timeout); 753 asmlinkage long sys_msgget(key_t key, int msgflg); 754 asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 755 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 756 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp, 757 size_t msgsz, long msgtyp, int msgflg); 758 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp, 759 size_t msgsz, int msgflg); 760 asmlinkage long sys_semget(key_t key, int nsems, int semflg); 761 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg); 762 asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg); 763 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops, 764 unsigned nsops, 765 const struct __kernel_timespec __user *timeout); 766 asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops, 767 unsigned nsops, 768 const struct old_timespec32 __user *timeout); 769 asmlinkage long sys_semop(int semid, struct sembuf __user *sops, 770 unsigned nsops); 771 asmlinkage long sys_shmget(key_t key, size_t size, int flag); 772 asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 773 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 774 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg); 775 asmlinkage long sys_shmdt(char __user *shmaddr); 776 asmlinkage long sys_socket(int, int, int); 777 asmlinkage long sys_socketpair(int, int, int, int __user *); 778 asmlinkage long sys_bind(int, struct sockaddr __user *, int); 779 asmlinkage long sys_listen(int, int); 780 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *); 781 asmlinkage long sys_connect(int, struct sockaddr __user *, int); 782 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *); 783 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *); 784 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned, 785 struct sockaddr __user *, int); 786 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned, 787 struct sockaddr __user *, int __user *); 788 asmlinkage long sys_setsockopt(int fd, int level, int optname, 789 char __user *optval, int optlen); 790 asmlinkage long sys_getsockopt(int fd, int level, int optname, 791 char __user *optval, int __user *optlen); 792 asmlinkage long sys_shutdown(int, int); 793 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 794 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 795 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count); 796 asmlinkage long sys_brk(unsigned long brk); 797 asmlinkage long sys_munmap(unsigned long addr, size_t len); 798 asmlinkage long sys_mremap(unsigned long addr, 799 unsigned long old_len, unsigned long new_len, 800 unsigned long flags, unsigned long new_addr); 801 asmlinkage long sys_add_key(const char __user *_type, 802 const char __user *_description, 803 const void __user *_payload, 804 size_t plen, 805 key_serial_t destringid); 806 asmlinkage long sys_request_key(const char __user *_type, 807 const char __user *_description, 808 const char __user *_callout_info, 809 key_serial_t destringid); 810 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3, 811 unsigned long arg4, unsigned long arg5); 812 #ifdef CONFIG_CLONE_BACKWARDS 813 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long, 814 int __user *); 815 #else 816 #ifdef CONFIG_CLONE_BACKWARDS3 817 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *, 818 int __user *, unsigned long); 819 #else 820 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, 821 int __user *, unsigned long); 822 #endif 823 #endif 824 825 asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size); 826 827 asmlinkage long sys_execve(const char __user *filename, 828 const char __user *const __user *argv, 829 const char __user *const __user *envp); 830 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 831 832 /* CONFIG_MMU only */ 833 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags); 834 asmlinkage long sys_swapoff(const char __user *specialfile); 835 asmlinkage long sys_mprotect(unsigned long start, size_t len, 836 unsigned long prot); 837 asmlinkage long sys_msync(unsigned long start, size_t len, int flags); 838 asmlinkage long sys_mlock(unsigned long start, size_t len); 839 asmlinkage long sys_munlock(unsigned long start, size_t len); 840 asmlinkage long sys_mlockall(int flags); 841 asmlinkage long sys_munlockall(void); 842 asmlinkage long sys_mincore(unsigned long start, size_t len, 843 unsigned char __user * vec); 844 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior); 845 asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec, 846 size_t vlen, int behavior, unsigned int flags); 847 asmlinkage long sys_process_mrelease(int pidfd, unsigned int flags); 848 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, 849 unsigned long prot, unsigned long pgoff, 850 unsigned long flags); 851 asmlinkage long sys_mseal(unsigned long start, size_t len, unsigned long flags); 852 asmlinkage long sys_mbind(unsigned long start, unsigned long len, 853 unsigned long mode, 854 const unsigned long __user *nmask, 855 unsigned long maxnode, 856 unsigned flags); 857 asmlinkage long sys_get_mempolicy(int __user *policy, 858 unsigned long __user *nmask, 859 unsigned long maxnode, 860 unsigned long addr, unsigned long flags); 861 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask, 862 unsigned long maxnode); 863 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode, 864 const unsigned long __user *from, 865 const unsigned long __user *to); 866 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages, 867 const void __user * __user *pages, 868 const int __user *nodes, 869 int __user *status, 870 int flags); 871 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, 872 siginfo_t __user *uinfo); 873 asmlinkage long sys_perf_event_open( 874 struct perf_event_attr __user *attr_uptr, 875 pid_t pid, int cpu, int group_fd, unsigned long flags); 876 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int); 877 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg, 878 unsigned int vlen, unsigned flags, 879 struct __kernel_timespec __user *timeout); 880 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg, 881 unsigned int vlen, unsigned flags, 882 struct old_timespec32 __user *timeout); 883 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr, 884 int options, struct rusage __user *ru); 885 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource, 886 const struct rlimit64 __user *new_rlim, 887 struct rlimit64 __user *old_rlim); 888 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags); 889 #if defined(CONFIG_ARCH_SPLIT_ARG64) 890 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags, 891 unsigned int mask_1, unsigned int mask_2, 892 int dfd, const char __user * pathname); 893 #else 894 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags, 895 u64 mask, int fd, 896 const char __user *pathname); 897 #endif 898 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name, 899 struct file_handle __user *handle, 900 void __user *mnt_id, int flag); 901 asmlinkage long sys_open_by_handle_at(int mountdirfd, 902 struct file_handle __user *handle, 903 int flags); 904 asmlinkage long sys_clock_adjtime(clockid_t which_clock, 905 struct __kernel_timex __user *tx); 906 asmlinkage long sys_clock_adjtime32(clockid_t which_clock, 907 struct old_timex32 __user *tx); 908 asmlinkage long sys_syncfs(int fd); 909 asmlinkage long sys_setns(int fd, int nstype); 910 asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags); 911 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg, 912 unsigned int vlen, unsigned flags); 913 asmlinkage long sys_process_vm_readv(pid_t pid, 914 const struct iovec __user *lvec, 915 unsigned long liovcnt, 916 const struct iovec __user *rvec, 917 unsigned long riovcnt, 918 unsigned long flags); 919 asmlinkage long sys_process_vm_writev(pid_t pid, 920 const struct iovec __user *lvec, 921 unsigned long liovcnt, 922 const struct iovec __user *rvec, 923 unsigned long riovcnt, 924 unsigned long flags); 925 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type, 926 unsigned long idx1, unsigned long idx2); 927 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags); 928 asmlinkage long sys_sched_setattr(pid_t pid, 929 struct sched_attr __user *attr, 930 unsigned int flags); 931 asmlinkage long sys_sched_getattr(pid_t pid, 932 struct sched_attr __user *attr, 933 unsigned int size, 934 unsigned int flags); 935 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname, 936 int newdfd, const char __user *newname, 937 unsigned int flags); 938 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, 939 void __user *uargs); 940 asmlinkage long sys_getrandom(char __user *buf, size_t count, 941 unsigned int flags); 942 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags); 943 asmlinkage long sys_bpf(int cmd, union bpf_attr __user *attr, unsigned int size, 944 struct bpf_common_attr __user *attr_common, unsigned int size_common); 945 asmlinkage long sys_execveat(int dfd, const char __user *filename, 946 const char __user *const __user *argv, 947 const char __user *const __user *envp, int flags); 948 asmlinkage long sys_userfaultfd(int flags); 949 asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id); 950 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags); 951 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in, 952 int fd_out, loff_t __user *off_out, 953 size_t len, unsigned int flags); 954 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec, 955 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 956 rwf_t flags); 957 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec, 958 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 959 rwf_t flags); 960 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len, 961 unsigned long prot, int pkey); 962 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val); 963 asmlinkage long sys_pkey_free(int pkey); 964 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags, 965 unsigned mask, struct statx __user *buffer); 966 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len, 967 int flags, uint32_t sig); 968 asmlinkage long sys_rseq_slice_yield(void); 969 asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags); 970 asmlinkage long sys_open_tree_attr(int dfd, const char __user *path, 971 unsigned flags, 972 struct mount_attr __user *uattr, 973 size_t usize); 974 asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path, 975 int to_dfd, const char __user *to_path, 976 unsigned int ms_flags); 977 asmlinkage long sys_mount_setattr(int dfd, const char __user *path, 978 unsigned int flags, 979 struct mount_attr __user *uattr, size_t usize); 980 asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags); 981 asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key, 982 const void __user *value, int aux); 983 asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags); 984 asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags); 985 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig, 986 siginfo_t __user *info, 987 unsigned int flags); 988 asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags); 989 asmlinkage long sys_landlock_create_ruleset(const struct landlock_ruleset_attr __user *attr, 990 size_t size, __u32 flags); 991 asmlinkage long sys_landlock_add_rule(int ruleset_fd, enum landlock_rule_type rule_type, 992 const void __user *rule_attr, __u32 flags); 993 asmlinkage long sys_landlock_restrict_self(int ruleset_fd, __u32 flags); 994 asmlinkage long sys_memfd_secret(unsigned int flags); 995 asmlinkage long sys_set_mempolicy_home_node(unsigned long start, unsigned long len, 996 unsigned long home_node, 997 unsigned long flags); 998 asmlinkage long sys_cachestat(unsigned int fd, 999 struct cachestat_range __user *cstat_range, 1000 struct cachestat __user *cstat, unsigned int flags); 1001 asmlinkage long sys_map_shadow_stack(unsigned long addr, unsigned long size, unsigned int flags); 1002 asmlinkage long sys_lsm_get_self_attr(unsigned int attr, struct lsm_ctx __user *ctx, 1003 u32 __user *size, u32 flags); 1004 asmlinkage long sys_lsm_set_self_attr(unsigned int attr, struct lsm_ctx __user *ctx, 1005 u32 size, u32 flags); 1006 asmlinkage long sys_lsm_list_modules(u64 __user *ids, u32 __user *size, u32 flags); 1007 1008 /* 1009 * Architecture-specific system calls 1010 */ 1011 1012 /* x86 */ 1013 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); 1014 1015 asmlinkage long sys_uretprobe(void); 1016 1017 asmlinkage long sys_uprobe(void); 1018 1019 /* pciconfig: alpha, arm, arm64, ia64, sparc */ 1020 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn, 1021 unsigned long off, unsigned long len, 1022 void __user *buf); 1023 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn, 1024 unsigned long off, unsigned long len, 1025 void __user *buf); 1026 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn); 1027 1028 /* powerpc */ 1029 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc, 1030 __u32 __user *ustatus); 1031 asmlinkage long sys_spu_create(const char __user *name, 1032 unsigned int flags, umode_t mode, int fd); 1033 1034 1035 /* 1036 * Deprecated system calls which are still defined in 1037 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch 1038 */ 1039 1040 /* __ARCH_WANT_SYSCALL_NO_AT */ 1041 asmlinkage long sys_open(const char __user *filename, 1042 int flags, umode_t mode); 1043 asmlinkage long sys_link(const char __user *oldname, 1044 const char __user *newname); 1045 asmlinkage long sys_unlink(const char __user *pathname); 1046 asmlinkage long sys_mknod(const char __user *filename, umode_t mode, 1047 unsigned dev); 1048 asmlinkage long sys_chmod(const char __user *filename, umode_t mode); 1049 asmlinkage long sys_chown(const char __user *filename, 1050 uid_t user, gid_t group); 1051 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode); 1052 asmlinkage long sys_rmdir(const char __user *pathname); 1053 asmlinkage long sys_lchown(const char __user *filename, 1054 uid_t user, gid_t group); 1055 asmlinkage long sys_access(const char __user *filename, int mode); 1056 asmlinkage long sys_rename(const char __user *oldname, 1057 const char __user *newname); 1058 asmlinkage long sys_symlink(const char __user *old, const char __user *new); 1059 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 1060 asmlinkage long sys_stat64(const char __user *filename, 1061 struct stat64 __user *statbuf); 1062 asmlinkage long sys_lstat64(const char __user *filename, 1063 struct stat64 __user *statbuf); 1064 #endif 1065 1066 /* __ARCH_WANT_SYSCALL_NO_FLAGS */ 1067 asmlinkage long sys_pipe(int __user *fildes); 1068 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd); 1069 asmlinkage long sys_epoll_create(int size); 1070 asmlinkage long sys_inotify_init(void); 1071 asmlinkage long sys_eventfd(unsigned int count); 1072 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask); 1073 1074 /* __ARCH_WANT_SYSCALL_OFF_T */ 1075 asmlinkage long sys_sendfile(int out_fd, int in_fd, 1076 off_t __user *offset, size_t count); 1077 asmlinkage long sys_newstat(const char __user *filename, 1078 struct stat __user *statbuf); 1079 asmlinkage long sys_newlstat(const char __user *filename, 1080 struct stat __user *statbuf); 1081 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice); 1082 1083 /* __ARCH_WANT_SYSCALL_DEPRECATED */ 1084 asmlinkage long sys_alarm(unsigned int seconds); 1085 asmlinkage long sys_getpgrp(void); 1086 asmlinkage long sys_pause(void); 1087 asmlinkage long sys_time(__kernel_old_time_t __user *tloc); 1088 asmlinkage long sys_time32(old_time32_t __user *tloc); 1089 #ifdef __ARCH_WANT_SYS_UTIME 1090 asmlinkage long sys_utime(char __user *filename, 1091 struct utimbuf __user *times); 1092 asmlinkage long sys_utimes(char __user *filename, 1093 struct __kernel_old_timeval __user *utimes); 1094 asmlinkage long sys_futimesat(int dfd, const char __user *filename, 1095 struct __kernel_old_timeval __user *utimes); 1096 #endif 1097 asmlinkage long sys_futimesat_time32(unsigned int dfd, 1098 const char __user *filename, 1099 struct old_timeval32 __user *t); 1100 asmlinkage long sys_utime32(const char __user *filename, 1101 struct old_utimbuf32 __user *t); 1102 asmlinkage long sys_utimes_time32(const char __user *filename, 1103 struct old_timeval32 __user *t); 1104 asmlinkage long sys_creat(const char __user *pathname, umode_t mode); 1105 asmlinkage long sys_getdents(unsigned int fd, 1106 struct linux_dirent __user *dirent, 1107 unsigned int count); 1108 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp, 1109 fd_set __user *exp, struct __kernel_old_timeval __user *tvp); 1110 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds, 1111 int timeout); 1112 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, 1113 int maxevents, int timeout); 1114 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf); 1115 asmlinkage long sys_vfork(void); 1116 asmlinkage long sys_recv(int, void __user *, size_t, unsigned); 1117 asmlinkage long sys_send(int, void __user *, size_t, unsigned); 1118 asmlinkage long sys_oldumount(char __user *name); 1119 asmlinkage long sys_uselib(const char __user *library); 1120 asmlinkage long sys_sysfs(int option, 1121 unsigned long arg1, unsigned long arg2); 1122 asmlinkage long sys_fork(void); 1123 1124 /* obsolete */ 1125 asmlinkage long sys_stime(__kernel_old_time_t __user *tptr); 1126 asmlinkage long sys_stime32(old_time32_t __user *tptr); 1127 1128 /* obsolete */ 1129 asmlinkage long sys_sigpending(old_sigset_t __user *uset); 1130 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set, 1131 old_sigset_t __user *oset); 1132 #ifdef CONFIG_OLD_SIGSUSPEND 1133 asmlinkage long sys_sigsuspend(old_sigset_t mask); 1134 #endif 1135 1136 #ifdef CONFIG_OLD_SIGSUSPEND3 1137 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask); 1138 #endif 1139 1140 #ifdef CONFIG_OLD_SIGACTION 1141 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *, 1142 struct old_sigaction __user *); 1143 #endif 1144 asmlinkage long sys_sgetmask(void); 1145 asmlinkage long sys_ssetmask(int newmask); 1146 asmlinkage long sys_signal(int sig, __sighandler_t handler); 1147 1148 /* obsolete */ 1149 asmlinkage long sys_nice(int increment); 1150 1151 /* obsolete */ 1152 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd, 1153 unsigned long cmdline_len, 1154 const char __user *cmdline_ptr, 1155 unsigned long flags); 1156 1157 /* obsolete */ 1158 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options); 1159 1160 /* obsolete */ 1161 #ifdef CONFIG_HAVE_UID16 1162 asmlinkage long sys_chown16(const char __user *filename, 1163 old_uid_t user, old_gid_t group); 1164 asmlinkage long sys_lchown16(const char __user *filename, 1165 old_uid_t user, old_gid_t group); 1166 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group); 1167 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid); 1168 asmlinkage long sys_setgid16(old_gid_t gid); 1169 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid); 1170 asmlinkage long sys_setuid16(old_uid_t uid); 1171 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid); 1172 asmlinkage long sys_getresuid16(old_uid_t __user *ruid, 1173 old_uid_t __user *euid, old_uid_t __user *suid); 1174 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid); 1175 asmlinkage long sys_getresgid16(old_gid_t __user *rgid, 1176 old_gid_t __user *egid, old_gid_t __user *sgid); 1177 asmlinkage long sys_setfsuid16(old_uid_t uid); 1178 asmlinkage long sys_setfsgid16(old_gid_t gid); 1179 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist); 1180 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist); 1181 asmlinkage long sys_getuid16(void); 1182 asmlinkage long sys_geteuid16(void); 1183 asmlinkage long sys_getgid16(void); 1184 asmlinkage long sys_getegid16(void); 1185 #endif 1186 1187 /* obsolete */ 1188 asmlinkage long sys_socketcall(int call, unsigned long __user *args); 1189 1190 /* obsolete */ 1191 asmlinkage long sys_stat(const char __user *filename, 1192 struct __old_kernel_stat __user *statbuf); 1193 asmlinkage long sys_lstat(const char __user *filename, 1194 struct __old_kernel_stat __user *statbuf); 1195 asmlinkage long sys_fstat(unsigned int fd, 1196 struct __old_kernel_stat __user *statbuf); 1197 asmlinkage long sys_readlink(const char __user *path, 1198 char __user *buf, int bufsiz); 1199 1200 /* obsolete */ 1201 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg); 1202 1203 /* obsolete */ 1204 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int); 1205 1206 /* obsolete */ 1207 asmlinkage long sys_gethostname(char __user *name, int len); 1208 asmlinkage long sys_uname(struct old_utsname __user *); 1209 asmlinkage long sys_olduname(struct oldold_utsname __user *); 1210 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT 1211 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim); 1212 #endif 1213 1214 /* obsolete */ 1215 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second, 1216 unsigned long third, void __user *ptr, long fifth); 1217 1218 /* obsolete */ 1219 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len, 1220 unsigned long prot, unsigned long flags, 1221 unsigned long fd, unsigned long pgoff); 1222 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg); 1223 1224 1225 /* 1226 * Not a real system call, but a placeholder for syscalls which are 1227 * not implemented -- see kernel/sys_ni.c 1228 */ 1229 asmlinkage long sys_ni_syscall(void); 1230 1231 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 1232 1233 asmlinkage long sys_ni_posix_timers(void); 1234 1235 /* 1236 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly. 1237 * Instead, use one of the functions which work equivalently, such as 1238 * the ksys_xyzyyz() functions prototyped below. 1239 */ 1240 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count); 1241 int ksys_fchown(unsigned int fd, uid_t user, gid_t group); 1242 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count); 1243 void ksys_sync(void); 1244 int ksys_unshare(unsigned long unshare_flags); 1245 int ksys_setsid(void); 1246 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 1247 unsigned int flags); 1248 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count, 1249 loff_t pos); 1250 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf, 1251 size_t count, loff_t pos); 1252 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len); 1253 #ifdef CONFIG_ADVISE_SYSCALLS 1254 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 1255 #else 1256 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, 1257 int advice) 1258 { 1259 return -EINVAL; 1260 } 1261 #endif 1262 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len, 1263 unsigned long prot, unsigned long flags, 1264 unsigned long fd, unsigned long pgoff); 1265 ssize_t ksys_readahead(int fd, loff_t offset, size_t count); 1266 int ksys_ipc(unsigned int call, int first, unsigned long second, 1267 unsigned long third, void __user * ptr, long fifth); 1268 int compat_ksys_ipc(u32 call, int first, int second, 1269 u32 third, u32 ptr, u32 fifth); 1270 1271 /* 1272 * The following kernel syscall equivalents are just wrappers to fs-internal 1273 * functions. Therefore, provide stubs to be inlined at the callsites. 1274 */ 1275 extern int do_fchownat(int dfd, const char __user *filename, uid_t user, 1276 gid_t group, int flag); 1277 1278 static inline long ksys_chown(const char __user *filename, uid_t user, 1279 gid_t group) 1280 { 1281 return do_fchownat(AT_FDCWD, filename, user, group, 0); 1282 } 1283 1284 static inline long ksys_lchown(const char __user *filename, uid_t user, 1285 gid_t group) 1286 { 1287 return do_fchownat(AT_FDCWD, filename, user, group, 1288 AT_SYMLINK_NOFOLLOW); 1289 } 1290 1291 #define FTRUNCATE_LFS (1u << 0) /* allow truncating > 32-bit */ 1292 int ksys_ftruncate(unsigned int fd, loff_t length, unsigned int flags); 1293 int ksys_truncate(const char __user *pathname, loff_t length); 1294 1295 static inline unsigned int ksys_personality(unsigned int personality) 1296 { 1297 unsigned int old = current->personality; 1298 1299 if (personality != 0xffffffff) 1300 set_personality(personality); 1301 1302 return old; 1303 } 1304 1305 /* for __ARCH_WANT_SYS_IPC */ 1306 long ksys_semtimedop(int semid, struct sembuf __user *tsops, 1307 unsigned int nsops, 1308 const struct __kernel_timespec __user *timeout); 1309 long ksys_semget(key_t key, int nsems, int semflg); 1310 long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg); 1311 long ksys_msgget(key_t key, int msgflg); 1312 long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 1313 long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz, 1314 long msgtyp, int msgflg); 1315 long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz, 1316 int msgflg); 1317 long ksys_shmget(key_t key, size_t size, int shmflg); 1318 long ksys_shmdt(char __user *shmaddr); 1319 long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 1320 long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems, 1321 unsigned int nsops, 1322 const struct old_timespec32 __user *timeout); 1323 long __do_semtimedop(int semid, struct sembuf *tsems, unsigned int nsops, 1324 const struct timespec64 *timeout, 1325 struct ipc_namespace *ns); 1326 1327 int __sys_getsockopt(int fd, int level, int optname, char __user *optval, 1328 int __user *optlen); 1329 int __sys_setsockopt(int fd, int level, int optname, char __user *optval, 1330 int optlen); 1331 #endif 1332