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 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ 251 __attribute__((alias(__stringify(__se_sys##name)))); \ 252 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \ 253 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ 254 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ 255 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ 256 { \ 257 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\ 258 __MAP(x,__SC_TEST,__VA_ARGS__); \ 259 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \ 260 return ret; \ 261 } \ 262 __diag_pop(); \ 263 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) 264 #endif /* __SYSCALL_DEFINEx */ 265 266 /* For split 64-bit arguments on 32-bit architectures */ 267 #ifdef __LITTLE_ENDIAN 268 #define SC_ARG64(name) u32, name##_lo, u32, name##_hi 269 #else 270 #define SC_ARG64(name) u32, name##_hi, u32, name##_lo 271 #endif 272 #define SC_VAL64(type, name) ((type) name##_hi << 32 | name##_lo) 273 274 #ifdef CONFIG_COMPAT 275 #define SYSCALL32_DEFINE0 COMPAT_SYSCALL_DEFINE0 276 #define SYSCALL32_DEFINE1 COMPAT_SYSCALL_DEFINE1 277 #define SYSCALL32_DEFINE2 COMPAT_SYSCALL_DEFINE2 278 #define SYSCALL32_DEFINE3 COMPAT_SYSCALL_DEFINE3 279 #define SYSCALL32_DEFINE4 COMPAT_SYSCALL_DEFINE4 280 #define SYSCALL32_DEFINE5 COMPAT_SYSCALL_DEFINE5 281 #define SYSCALL32_DEFINE6 COMPAT_SYSCALL_DEFINE6 282 #else 283 #define SYSCALL32_DEFINE0 SYSCALL_DEFINE0 284 #define SYSCALL32_DEFINE1 SYSCALL_DEFINE1 285 #define SYSCALL32_DEFINE2 SYSCALL_DEFINE2 286 #define SYSCALL32_DEFINE3 SYSCALL_DEFINE3 287 #define SYSCALL32_DEFINE4 SYSCALL_DEFINE4 288 #define SYSCALL32_DEFINE5 SYSCALL_DEFINE5 289 #define SYSCALL32_DEFINE6 SYSCALL_DEFINE6 290 #endif 291 292 /* 293 * These syscall function prototypes are kept in the same order as 294 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below, 295 * followed by deprecated or obsolete system calls. 296 * 297 * Please note that these prototypes here are only provided for information 298 * purposes, for static analysis, and for linking from the syscall table. 299 * These functions should not be called elsewhere from kernel code. 300 * 301 * As the syscall calling convention may be different from the default 302 * for architectures overriding the syscall calling convention, do not 303 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled. 304 */ 305 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER 306 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx); 307 asmlinkage long sys_io_destroy(aio_context_t ctx); 308 asmlinkage long sys_io_submit(aio_context_t, long, 309 struct iocb __user * __user *); 310 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb, 311 struct io_event __user *result); 312 asmlinkage long sys_io_getevents(aio_context_t ctx_id, 313 long min_nr, 314 long nr, 315 struct io_event __user *events, 316 struct __kernel_timespec __user *timeout); 317 asmlinkage long sys_io_getevents_time32(__u32 ctx_id, 318 __s32 min_nr, 319 __s32 nr, 320 struct io_event __user *events, 321 struct old_timespec32 __user *timeout); 322 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id, 323 long min_nr, 324 long nr, 325 struct io_event __user *events, 326 struct __kernel_timespec __user *timeout, 327 const struct __aio_sigset __user *sig); 328 asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id, 329 long min_nr, 330 long nr, 331 struct io_event __user *events, 332 struct old_timespec32 __user *timeout, 333 const struct __aio_sigset __user *sig); 334 asmlinkage long sys_io_uring_setup(u32 entries, 335 struct io_uring_params __user *p); 336 asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit, 337 u32 min_complete, u32 flags, 338 const void __user *argp, size_t argsz); 339 asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op, 340 void __user *arg, unsigned int nr_args); 341 asmlinkage long sys_setxattr(const char __user *path, const char __user *name, 342 const void __user *value, size_t size, int flags); 343 asmlinkage long sys_setxattrat(int dfd, const char __user *path, unsigned int at_flags, 344 const char __user *name, 345 const struct xattr_args __user *args, size_t size); 346 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name, 347 const void __user *value, size_t size, int flags); 348 asmlinkage long sys_fsetxattr(int fd, const char __user *name, 349 const void __user *value, size_t size, int flags); 350 asmlinkage long sys_getxattr(const char __user *path, const char __user *name, 351 void __user *value, size_t size); 352 asmlinkage long sys_getxattrat(int dfd, const char __user *path, unsigned int at_flags, 353 const char __user *name, 354 struct xattr_args __user *args, size_t size); 355 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name, 356 void __user *value, size_t size); 357 asmlinkage long sys_fgetxattr(int fd, const char __user *name, 358 void __user *value, size_t size); 359 asmlinkage long sys_listxattr(const char __user *path, char __user *list, 360 size_t size); 361 asmlinkage long sys_listxattrat(int dfd, const char __user *path, 362 unsigned int at_flags, 363 char __user *list, size_t size); 364 asmlinkage long sys_llistxattr(const char __user *path, char __user *list, 365 size_t size); 366 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size); 367 asmlinkage long sys_removexattr(const char __user *path, 368 const char __user *name); 369 asmlinkage long sys_removexattrat(int dfd, const char __user *path, 370 unsigned int at_flags, 371 const char __user *name); 372 asmlinkage long sys_lremovexattr(const char __user *path, 373 const char __user *name); 374 asmlinkage long sys_fremovexattr(int fd, const char __user *name); 375 asmlinkage long sys_file_getattr(int dfd, const char __user *filename, 376 struct file_attr __user *attr, size_t usize, 377 unsigned int at_flags); 378 asmlinkage long sys_file_setattr(int dfd, const char __user *filename, 379 struct file_attr __user *attr, size_t usize, 380 unsigned int at_flags); 381 asmlinkage long sys_getcwd(char __user *buf, unsigned long size); 382 asmlinkage long sys_eventfd2(unsigned int count, int flags); 383 asmlinkage long sys_epoll_create1(int flags); 384 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, 385 struct epoll_event __user *event); 386 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events, 387 int maxevents, int timeout, 388 const sigset_t __user *sigmask, 389 size_t sigsetsize); 390 asmlinkage long sys_epoll_pwait2(int epfd, struct epoll_event __user *events, 391 int maxevents, 392 const struct __kernel_timespec __user *timeout, 393 const sigset_t __user *sigmask, 394 size_t sigsetsize); 395 asmlinkage long sys_dup(unsigned int fildes); 396 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags); 397 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); 398 #if BITS_PER_LONG == 32 399 asmlinkage long sys_fcntl64(unsigned int fd, 400 unsigned int cmd, unsigned long arg); 401 #endif 402 asmlinkage long sys_inotify_init1(int flags); 403 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, 404 u32 mask); 405 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd); 406 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, 407 unsigned long arg); 408 asmlinkage long sys_ioprio_set(int which, int who, int ioprio); 409 asmlinkage long sys_ioprio_get(int which, int who); 410 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd); 411 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode, 412 unsigned dev); 413 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode); 414 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag); 415 asmlinkage long sys_symlinkat(const char __user * oldname, 416 int newdfd, const char __user * newname); 417 asmlinkage long sys_linkat(int olddfd, const char __user *oldname, 418 int newdfd, const char __user *newname, int flags); 419 asmlinkage long sys_renameat(int olddfd, const char __user * oldname, 420 int newdfd, const char __user * newname); 421 asmlinkage long sys_umount(char __user *name, int flags); 422 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name, 423 char __user *type, unsigned long flags, 424 void __user *data); 425 asmlinkage long sys_pivot_root(const char __user *new_root, 426 const char __user *put_old); 427 asmlinkage long sys_statfs(const char __user * path, 428 struct statfs __user *buf); 429 asmlinkage long sys_statfs64(const char __user *path, size_t sz, 430 struct statfs64 __user *buf); 431 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf); 432 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz, 433 struct statfs64 __user *buf); 434 asmlinkage long sys_statmount(const struct mnt_id_req __user *req, 435 struct statmount __user *buf, size_t bufsize, 436 unsigned int flags); 437 asmlinkage long sys_listmount(const struct mnt_id_req __user *req, 438 u64 __user *mnt_ids, size_t nr_mnt_ids, 439 unsigned int flags); 440 asmlinkage long sys_listns(const struct ns_id_req __user *req, 441 u64 __user *ns_ids, size_t nr_ns_ids, 442 unsigned int flags); 443 asmlinkage long sys_truncate(const char __user *path, long length); 444 asmlinkage long sys_ftruncate(unsigned int fd, off_t length); 445 #if BITS_PER_LONG == 32 446 asmlinkage long sys_truncate64(const char __user *path, loff_t length); 447 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length); 448 #endif 449 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len); 450 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode); 451 asmlinkage long sys_faccessat2(int dfd, const char __user *filename, int mode, 452 int flags); 453 asmlinkage long sys_chdir(const char __user *filename); 454 asmlinkage long sys_fchdir(unsigned int fd); 455 asmlinkage long sys_chroot(const char __user *filename); 456 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode); 457 asmlinkage long sys_fchmodat(int dfd, const char __user *filename, 458 umode_t mode); 459 asmlinkage long sys_fchmodat2(int dfd, const char __user *filename, 460 umode_t mode, unsigned int flags); 461 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user, 462 gid_t group, int flag); 463 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group); 464 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags, 465 umode_t mode); 466 asmlinkage long sys_openat2(int dfd, const char __user *filename, 467 struct open_how __user *how, size_t size); 468 asmlinkage long sys_close(unsigned int fd); 469 asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd, 470 unsigned int flags); 471 asmlinkage long sys_vhangup(void); 472 asmlinkage long sys_pipe2(int __user *fildes, int flags); 473 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special, 474 qid_t id, void __user *addr); 475 asmlinkage long sys_quotactl_fd(unsigned int fd, unsigned int cmd, qid_t id, 476 void __user *addr); 477 asmlinkage long sys_getdents64(unsigned int fd, 478 struct linux_dirent64 __user *dirent, 479 unsigned int count); 480 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high, 481 unsigned long offset_low, loff_t __user *result, 482 unsigned int whence); 483 asmlinkage long sys_lseek(unsigned int fd, off_t offset, 484 unsigned int whence); 485 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count); 486 asmlinkage long sys_write(unsigned int fd, const char __user *buf, 487 size_t count); 488 asmlinkage long sys_readv(unsigned long fd, 489 const struct iovec __user *vec, 490 unsigned long vlen); 491 asmlinkage long sys_writev(unsigned long fd, 492 const struct iovec __user *vec, 493 unsigned long vlen); 494 asmlinkage long sys_pread64(unsigned int fd, char __user *buf, 495 size_t count, loff_t pos); 496 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf, 497 size_t count, loff_t pos); 498 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec, 499 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 500 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec, 501 unsigned long vlen, unsigned long pos_l, unsigned long pos_h); 502 asmlinkage long sys_sendfile64(int out_fd, int in_fd, 503 loff_t __user *offset, size_t count); 504 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *, 505 fd_set __user *, struct __kernel_timespec __user *, 506 void __user *); 507 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *, 508 fd_set __user *, struct old_timespec32 __user *, 509 void __user *); 510 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int, 511 struct __kernel_timespec __user *, const sigset_t __user *, 512 size_t); 513 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int, 514 struct old_timespec32 __user *, const sigset_t __user *, 515 size_t); 516 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags); 517 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov, 518 unsigned long nr_segs, unsigned int flags); 519 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in, 520 int fd_out, loff_t __user *off_out, 521 size_t len, unsigned int flags); 522 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags); 523 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf, 524 int bufsiz); 525 asmlinkage long sys_newfstatat(int dfd, const char __user *filename, 526 struct stat __user *statbuf, int flag); 527 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf); 528 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 529 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf); 530 asmlinkage long sys_fstatat64(int dfd, const char __user *filename, 531 struct stat64 __user *statbuf, int flag); 532 #endif 533 asmlinkage long sys_sync(void); 534 asmlinkage long sys_fsync(unsigned int fd); 535 asmlinkage long sys_fdatasync(unsigned int fd); 536 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags, 537 loff_t offset, loff_t nbytes); 538 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 539 unsigned int flags); 540 asmlinkage long sys_timerfd_create(int clockid, int flags); 541 asmlinkage long sys_timerfd_settime(int ufd, int flags, 542 const struct __kernel_itimerspec __user *utmr, 543 struct __kernel_itimerspec __user *otmr); 544 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr); 545 asmlinkage long sys_timerfd_gettime32(int ufd, 546 struct old_itimerspec32 __user *otmr); 547 asmlinkage long sys_timerfd_settime32(int ufd, int flags, 548 const struct old_itimerspec32 __user *utmr, 549 struct old_itimerspec32 __user *otmr); 550 asmlinkage long sys_utimensat(int dfd, const char __user *filename, 551 struct __kernel_timespec __user *utimes, 552 int flags); 553 asmlinkage long sys_utimensat_time32(unsigned int dfd, 554 const char __user *filename, 555 struct old_timespec32 __user *t, int flags); 556 asmlinkage long sys_acct(const char __user *name); 557 asmlinkage long sys_capget(cap_user_header_t header, 558 cap_user_data_t dataptr); 559 asmlinkage long sys_capset(cap_user_header_t header, 560 const cap_user_data_t data); 561 asmlinkage long sys_personality(unsigned int personality); 562 asmlinkage long sys_exit(int error_code); 563 asmlinkage long sys_exit_group(int error_code); 564 asmlinkage long sys_waitid(int which, pid_t pid, 565 struct siginfo __user *infop, 566 int options, struct rusage __user *ru); 567 asmlinkage long sys_set_tid_address(int __user *tidptr); 568 asmlinkage long sys_unshare(unsigned long unshare_flags); 569 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val, 570 const struct __kernel_timespec __user *utime, 571 u32 __user *uaddr2, u32 val3); 572 asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val, 573 const struct old_timespec32 __user *utime, 574 u32 __user *uaddr2, u32 val3); 575 asmlinkage long sys_get_robust_list(int pid, 576 struct robust_list_head __user * __user *head_ptr, 577 size_t __user *len_ptr); 578 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, 579 size_t len); 580 581 asmlinkage long sys_futex_waitv(struct futex_waitv __user *waiters, 582 unsigned int nr_futexes, unsigned int flags, 583 struct __kernel_timespec __user *timeout, clockid_t clockid); 584 585 asmlinkage long sys_futex_wake(void __user *uaddr, unsigned long mask, int nr, unsigned int flags); 586 587 asmlinkage long sys_futex_wait(void __user *uaddr, unsigned long val, unsigned long mask, 588 unsigned int flags, struct __kernel_timespec __user *timespec, 589 clockid_t clockid); 590 591 asmlinkage long sys_futex_requeue(struct futex_waitv __user *waiters, 592 unsigned int flags, int nr_wake, int nr_requeue); 593 594 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp, 595 struct __kernel_timespec __user *rmtp); 596 asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp, 597 struct old_timespec32 __user *rmtp); 598 asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value); 599 asmlinkage long sys_setitimer(int which, 600 struct __kernel_old_itimerval __user *value, 601 struct __kernel_old_itimerval __user *ovalue); 602 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments, 603 struct kexec_segment __user *segments, 604 unsigned long flags); 605 asmlinkage long sys_init_module(void __user *umod, unsigned long len, 606 const char __user *uargs); 607 asmlinkage long sys_delete_module(const char __user *name_user, 608 unsigned int flags); 609 asmlinkage long sys_timer_create(clockid_t which_clock, 610 struct sigevent __user *timer_event_spec, 611 timer_t __user * created_timer_id); 612 asmlinkage long sys_timer_gettime(timer_t timer_id, 613 struct __kernel_itimerspec __user *setting); 614 asmlinkage long sys_timer_getoverrun(timer_t timer_id); 615 asmlinkage long sys_timer_settime(timer_t timer_id, int flags, 616 const struct __kernel_itimerspec __user *new_setting, 617 struct __kernel_itimerspec __user *old_setting); 618 asmlinkage long sys_timer_delete(timer_t timer_id); 619 asmlinkage long sys_clock_settime(clockid_t which_clock, 620 const struct __kernel_timespec __user *tp); 621 asmlinkage long sys_clock_gettime(clockid_t which_clock, 622 struct __kernel_timespec __user *tp); 623 asmlinkage long sys_clock_getres(clockid_t which_clock, 624 struct __kernel_timespec __user *tp); 625 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags, 626 const struct __kernel_timespec __user *rqtp, 627 struct __kernel_timespec __user *rmtp); 628 asmlinkage long sys_timer_gettime32(timer_t timer_id, 629 struct old_itimerspec32 __user *setting); 630 asmlinkage long sys_timer_settime32(timer_t timer_id, int flags, 631 struct old_itimerspec32 __user *new, 632 struct old_itimerspec32 __user *old); 633 asmlinkage long sys_clock_settime32(clockid_t which_clock, 634 struct old_timespec32 __user *tp); 635 asmlinkage long sys_clock_gettime32(clockid_t which_clock, 636 struct old_timespec32 __user *tp); 637 asmlinkage long sys_clock_getres_time32(clockid_t which_clock, 638 struct old_timespec32 __user *tp); 639 asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags, 640 struct old_timespec32 __user *rqtp, 641 struct old_timespec32 __user *rmtp); 642 asmlinkage long sys_syslog(int type, char __user *buf, int len); 643 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, 644 unsigned long data); 645 asmlinkage long sys_sched_setparam(pid_t pid, 646 struct sched_param __user *param); 647 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy, 648 struct sched_param __user *param); 649 asmlinkage long sys_sched_getscheduler(pid_t pid); 650 asmlinkage long sys_sched_getparam(pid_t pid, 651 struct sched_param __user *param); 652 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len, 653 unsigned long __user *user_mask_ptr); 654 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len, 655 unsigned long __user *user_mask_ptr); 656 asmlinkage long sys_sched_yield(void); 657 asmlinkage long sys_sched_get_priority_max(int policy); 658 asmlinkage long sys_sched_get_priority_min(int policy); 659 asmlinkage long sys_sched_rr_get_interval(pid_t pid, 660 struct __kernel_timespec __user *interval); 661 asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid, 662 struct old_timespec32 __user *interval); 663 asmlinkage long sys_restart_syscall(void); 664 asmlinkage long sys_kill(pid_t pid, int sig); 665 asmlinkage long sys_tkill(pid_t pid, int sig); 666 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig); 667 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss, 668 struct sigaltstack __user *uoss); 669 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize); 670 #ifndef CONFIG_ODD_RT_SIGACTION 671 asmlinkage long sys_rt_sigaction(int, 672 const struct sigaction __user *, 673 struct sigaction __user *, 674 size_t); 675 #endif 676 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set, 677 sigset_t __user *oset, size_t sigsetsize); 678 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize); 679 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese, 680 siginfo_t __user *uinfo, 681 const struct __kernel_timespec __user *uts, 682 size_t sigsetsize); 683 asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese, 684 siginfo_t __user *uinfo, 685 const struct old_timespec32 __user *uts, 686 size_t sigsetsize); 687 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo); 688 asmlinkage long sys_setpriority(int which, int who, int niceval); 689 asmlinkage long sys_getpriority(int which, int who); 690 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, 691 void __user *arg); 692 asmlinkage long sys_setregid(gid_t rgid, gid_t egid); 693 asmlinkage long sys_setgid(gid_t gid); 694 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid); 695 asmlinkage long sys_setuid(uid_t uid); 696 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid); 697 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid); 698 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid); 699 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid); 700 asmlinkage long sys_setfsuid(uid_t uid); 701 asmlinkage long sys_setfsgid(gid_t gid); 702 asmlinkage long sys_times(struct tms __user *tbuf); 703 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid); 704 asmlinkage long sys_getpgid(pid_t pid); 705 asmlinkage long sys_getsid(pid_t pid); 706 asmlinkage long sys_setsid(void); 707 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist); 708 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist); 709 asmlinkage long sys_newuname(struct new_utsname __user *name); 710 asmlinkage long sys_sethostname(char __user *name, int len); 711 asmlinkage long sys_setdomainname(char __user *name, int len); 712 asmlinkage long sys_getrlimit(unsigned int resource, 713 struct rlimit __user *rlim); 714 asmlinkage long sys_setrlimit(unsigned int resource, 715 struct rlimit __user *rlim); 716 asmlinkage long sys_getrusage(int who, struct rusage __user *ru); 717 asmlinkage long sys_umask(int mask); 718 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, 719 unsigned long arg4, unsigned long arg5); 720 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, void __user *cache); 721 asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv, 722 struct timezone __user *tz); 723 asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv, 724 struct timezone __user *tz); 725 asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p); 726 asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p); 727 asmlinkage long sys_getpid(void); 728 asmlinkage long sys_getppid(void); 729 asmlinkage long sys_getuid(void); 730 asmlinkage long sys_geteuid(void); 731 asmlinkage long sys_getgid(void); 732 asmlinkage long sys_getegid(void); 733 asmlinkage long sys_gettid(void); 734 asmlinkage long sys_sysinfo(struct sysinfo __user *info); 735 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr); 736 asmlinkage long sys_mq_unlink(const char __user *name); 737 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); 738 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); 739 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification); 740 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat); 741 asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes, 742 char __user *u_msg_ptr, 743 unsigned int msg_len, unsigned int __user *u_msg_prio, 744 const struct old_timespec32 __user *u_abs_timeout); 745 asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes, 746 const char __user *u_msg_ptr, 747 unsigned int msg_len, unsigned int msg_prio, 748 const struct old_timespec32 __user *u_abs_timeout); 749 asmlinkage long sys_msgget(key_t key, int msgflg); 750 asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 751 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 752 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp, 753 size_t msgsz, long msgtyp, int msgflg); 754 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp, 755 size_t msgsz, int msgflg); 756 asmlinkage long sys_semget(key_t key, int nsems, int semflg); 757 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg); 758 asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg); 759 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops, 760 unsigned nsops, 761 const struct __kernel_timespec __user *timeout); 762 asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops, 763 unsigned nsops, 764 const struct old_timespec32 __user *timeout); 765 asmlinkage long sys_semop(int semid, struct sembuf __user *sops, 766 unsigned nsops); 767 asmlinkage long sys_shmget(key_t key, size_t size, int flag); 768 asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 769 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 770 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg); 771 asmlinkage long sys_shmdt(char __user *shmaddr); 772 asmlinkage long sys_socket(int, int, int); 773 asmlinkage long sys_socketpair(int, int, int, int __user *); 774 asmlinkage long sys_bind(int, struct sockaddr __user *, int); 775 asmlinkage long sys_listen(int, int); 776 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *); 777 asmlinkage long sys_connect(int, struct sockaddr __user *, int); 778 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *); 779 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *); 780 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned, 781 struct sockaddr __user *, int); 782 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned, 783 struct sockaddr __user *, int __user *); 784 asmlinkage long sys_setsockopt(int fd, int level, int optname, 785 char __user *optval, int optlen); 786 asmlinkage long sys_getsockopt(int fd, int level, int optname, 787 char __user *optval, int __user *optlen); 788 asmlinkage long sys_shutdown(int, int); 789 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 790 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags); 791 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count); 792 asmlinkage long sys_brk(unsigned long brk); 793 asmlinkage long sys_munmap(unsigned long addr, size_t len); 794 asmlinkage long sys_mremap(unsigned long addr, 795 unsigned long old_len, unsigned long new_len, 796 unsigned long flags, unsigned long new_addr); 797 asmlinkage long sys_add_key(const char __user *_type, 798 const char __user *_description, 799 const void __user *_payload, 800 size_t plen, 801 key_serial_t destringid); 802 asmlinkage long sys_request_key(const char __user *_type, 803 const char __user *_description, 804 const char __user *_callout_info, 805 key_serial_t destringid); 806 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3, 807 unsigned long arg4, unsigned long arg5); 808 #ifdef CONFIG_CLONE_BACKWARDS 809 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long, 810 int __user *); 811 #else 812 #ifdef CONFIG_CLONE_BACKWARDS3 813 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *, 814 int __user *, unsigned long); 815 #else 816 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, 817 int __user *, unsigned long); 818 #endif 819 #endif 820 821 asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size); 822 823 asmlinkage long sys_execve(const char __user *filename, 824 const char __user *const __user *argv, 825 const char __user *const __user *envp); 826 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 827 828 /* CONFIG_MMU only */ 829 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags); 830 asmlinkage long sys_swapoff(const char __user *specialfile); 831 asmlinkage long sys_mprotect(unsigned long start, size_t len, 832 unsigned long prot); 833 asmlinkage long sys_msync(unsigned long start, size_t len, int flags); 834 asmlinkage long sys_mlock(unsigned long start, size_t len); 835 asmlinkage long sys_munlock(unsigned long start, size_t len); 836 asmlinkage long sys_mlockall(int flags); 837 asmlinkage long sys_munlockall(void); 838 asmlinkage long sys_mincore(unsigned long start, size_t len, 839 unsigned char __user * vec); 840 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior); 841 asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec, 842 size_t vlen, int behavior, unsigned int flags); 843 asmlinkage long sys_process_mrelease(int pidfd, unsigned int flags); 844 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size, 845 unsigned long prot, unsigned long pgoff, 846 unsigned long flags); 847 asmlinkage long sys_mseal(unsigned long start, size_t len, unsigned long flags); 848 asmlinkage long sys_mbind(unsigned long start, unsigned long len, 849 unsigned long mode, 850 const unsigned long __user *nmask, 851 unsigned long maxnode, 852 unsigned flags); 853 asmlinkage long sys_get_mempolicy(int __user *policy, 854 unsigned long __user *nmask, 855 unsigned long maxnode, 856 unsigned long addr, unsigned long flags); 857 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask, 858 unsigned long maxnode); 859 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode, 860 const unsigned long __user *from, 861 const unsigned long __user *to); 862 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages, 863 const void __user * __user *pages, 864 const int __user *nodes, 865 int __user *status, 866 int flags); 867 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, 868 siginfo_t __user *uinfo); 869 asmlinkage long sys_perf_event_open( 870 struct perf_event_attr __user *attr_uptr, 871 pid_t pid, int cpu, int group_fd, unsigned long flags); 872 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int); 873 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg, 874 unsigned int vlen, unsigned flags, 875 struct __kernel_timespec __user *timeout); 876 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg, 877 unsigned int vlen, unsigned flags, 878 struct old_timespec32 __user *timeout); 879 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr, 880 int options, struct rusage __user *ru); 881 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource, 882 const struct rlimit64 __user *new_rlim, 883 struct rlimit64 __user *old_rlim); 884 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags); 885 #if defined(CONFIG_ARCH_SPLIT_ARG64) 886 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags, 887 unsigned int mask_1, unsigned int mask_2, 888 int dfd, const char __user * pathname); 889 #else 890 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags, 891 u64 mask, int fd, 892 const char __user *pathname); 893 #endif 894 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name, 895 struct file_handle __user *handle, 896 void __user *mnt_id, int flag); 897 asmlinkage long sys_open_by_handle_at(int mountdirfd, 898 struct file_handle __user *handle, 899 int flags); 900 asmlinkage long sys_clock_adjtime(clockid_t which_clock, 901 struct __kernel_timex __user *tx); 902 asmlinkage long sys_clock_adjtime32(clockid_t which_clock, 903 struct old_timex32 __user *tx); 904 asmlinkage long sys_syncfs(int fd); 905 asmlinkage long sys_setns(int fd, int nstype); 906 asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags); 907 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg, 908 unsigned int vlen, unsigned flags); 909 asmlinkage long sys_process_vm_readv(pid_t pid, 910 const struct iovec __user *lvec, 911 unsigned long liovcnt, 912 const struct iovec __user *rvec, 913 unsigned long riovcnt, 914 unsigned long flags); 915 asmlinkage long sys_process_vm_writev(pid_t pid, 916 const struct iovec __user *lvec, 917 unsigned long liovcnt, 918 const struct iovec __user *rvec, 919 unsigned long riovcnt, 920 unsigned long flags); 921 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type, 922 unsigned long idx1, unsigned long idx2); 923 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags); 924 asmlinkage long sys_sched_setattr(pid_t pid, 925 struct sched_attr __user *attr, 926 unsigned int flags); 927 asmlinkage long sys_sched_getattr(pid_t pid, 928 struct sched_attr __user *attr, 929 unsigned int size, 930 unsigned int flags); 931 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname, 932 int newdfd, const char __user *newname, 933 unsigned int flags); 934 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, 935 void __user *uargs); 936 asmlinkage long sys_getrandom(char __user *buf, size_t count, 937 unsigned int flags); 938 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags); 939 asmlinkage long sys_bpf(int cmd, union bpf_attr __user *attr, unsigned int size); 940 asmlinkage long sys_execveat(int dfd, const char __user *filename, 941 const char __user *const __user *argv, 942 const char __user *const __user *envp, int flags); 943 asmlinkage long sys_userfaultfd(int flags); 944 asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id); 945 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags); 946 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in, 947 int fd_out, loff_t __user *off_out, 948 size_t len, unsigned int flags); 949 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec, 950 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 951 rwf_t flags); 952 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec, 953 unsigned long vlen, unsigned long pos_l, unsigned long pos_h, 954 rwf_t flags); 955 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len, 956 unsigned long prot, int pkey); 957 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val); 958 asmlinkage long sys_pkey_free(int pkey); 959 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags, 960 unsigned mask, struct statx __user *buffer); 961 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len, 962 int flags, uint32_t sig); 963 asmlinkage long sys_rseq_slice_yield(void); 964 asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags); 965 asmlinkage long sys_open_tree_attr(int dfd, const char __user *path, 966 unsigned flags, 967 struct mount_attr __user *uattr, 968 size_t usize); 969 asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path, 970 int to_dfd, const char __user *to_path, 971 unsigned int ms_flags); 972 asmlinkage long sys_mount_setattr(int dfd, const char __user *path, 973 unsigned int flags, 974 struct mount_attr __user *uattr, size_t usize); 975 asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags); 976 asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key, 977 const void __user *value, int aux); 978 asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags); 979 asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags); 980 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig, 981 siginfo_t __user *info, 982 unsigned int flags); 983 asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags); 984 asmlinkage long sys_landlock_create_ruleset(const struct landlock_ruleset_attr __user *attr, 985 size_t size, __u32 flags); 986 asmlinkage long sys_landlock_add_rule(int ruleset_fd, enum landlock_rule_type rule_type, 987 const void __user *rule_attr, __u32 flags); 988 asmlinkage long sys_landlock_restrict_self(int ruleset_fd, __u32 flags); 989 asmlinkage long sys_memfd_secret(unsigned int flags); 990 asmlinkage long sys_set_mempolicy_home_node(unsigned long start, unsigned long len, 991 unsigned long home_node, 992 unsigned long flags); 993 asmlinkage long sys_cachestat(unsigned int fd, 994 struct cachestat_range __user *cstat_range, 995 struct cachestat __user *cstat, unsigned int flags); 996 asmlinkage long sys_map_shadow_stack(unsigned long addr, unsigned long size, unsigned int flags); 997 asmlinkage long sys_lsm_get_self_attr(unsigned int attr, struct lsm_ctx __user *ctx, 998 u32 __user *size, u32 flags); 999 asmlinkage long sys_lsm_set_self_attr(unsigned int attr, struct lsm_ctx __user *ctx, 1000 u32 size, u32 flags); 1001 asmlinkage long sys_lsm_list_modules(u64 __user *ids, u32 __user *size, u32 flags); 1002 1003 /* 1004 * Architecture-specific system calls 1005 */ 1006 1007 /* x86 */ 1008 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); 1009 1010 asmlinkage long sys_uretprobe(void); 1011 1012 asmlinkage long sys_uprobe(void); 1013 1014 /* pciconfig: alpha, arm, arm64, ia64, sparc */ 1015 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn, 1016 unsigned long off, unsigned long len, 1017 void __user *buf); 1018 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn, 1019 unsigned long off, unsigned long len, 1020 void __user *buf); 1021 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn); 1022 1023 /* powerpc */ 1024 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc, 1025 __u32 __user *ustatus); 1026 asmlinkage long sys_spu_create(const char __user *name, 1027 unsigned int flags, umode_t mode, int fd); 1028 1029 1030 /* 1031 * Deprecated system calls which are still defined in 1032 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch 1033 */ 1034 1035 /* __ARCH_WANT_SYSCALL_NO_AT */ 1036 asmlinkage long sys_open(const char __user *filename, 1037 int flags, umode_t mode); 1038 asmlinkage long sys_link(const char __user *oldname, 1039 const char __user *newname); 1040 asmlinkage long sys_unlink(const char __user *pathname); 1041 asmlinkage long sys_mknod(const char __user *filename, umode_t mode, 1042 unsigned dev); 1043 asmlinkage long sys_chmod(const char __user *filename, umode_t mode); 1044 asmlinkage long sys_chown(const char __user *filename, 1045 uid_t user, gid_t group); 1046 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode); 1047 asmlinkage long sys_rmdir(const char __user *pathname); 1048 asmlinkage long sys_lchown(const char __user *filename, 1049 uid_t user, gid_t group); 1050 asmlinkage long sys_access(const char __user *filename, int mode); 1051 asmlinkage long sys_rename(const char __user *oldname, 1052 const char __user *newname); 1053 asmlinkage long sys_symlink(const char __user *old, const char __user *new); 1054 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64) 1055 asmlinkage long sys_stat64(const char __user *filename, 1056 struct stat64 __user *statbuf); 1057 asmlinkage long sys_lstat64(const char __user *filename, 1058 struct stat64 __user *statbuf); 1059 #endif 1060 1061 /* __ARCH_WANT_SYSCALL_NO_FLAGS */ 1062 asmlinkage long sys_pipe(int __user *fildes); 1063 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd); 1064 asmlinkage long sys_epoll_create(int size); 1065 asmlinkage long sys_inotify_init(void); 1066 asmlinkage long sys_eventfd(unsigned int count); 1067 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask); 1068 1069 /* __ARCH_WANT_SYSCALL_OFF_T */ 1070 asmlinkage long sys_sendfile(int out_fd, int in_fd, 1071 off_t __user *offset, size_t count); 1072 asmlinkage long sys_newstat(const char __user *filename, 1073 struct stat __user *statbuf); 1074 asmlinkage long sys_newlstat(const char __user *filename, 1075 struct stat __user *statbuf); 1076 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice); 1077 1078 /* __ARCH_WANT_SYSCALL_DEPRECATED */ 1079 asmlinkage long sys_alarm(unsigned int seconds); 1080 asmlinkage long sys_getpgrp(void); 1081 asmlinkage long sys_pause(void); 1082 asmlinkage long sys_time(__kernel_old_time_t __user *tloc); 1083 asmlinkage long sys_time32(old_time32_t __user *tloc); 1084 #ifdef __ARCH_WANT_SYS_UTIME 1085 asmlinkage long sys_utime(char __user *filename, 1086 struct utimbuf __user *times); 1087 asmlinkage long sys_utimes(char __user *filename, 1088 struct __kernel_old_timeval __user *utimes); 1089 asmlinkage long sys_futimesat(int dfd, const char __user *filename, 1090 struct __kernel_old_timeval __user *utimes); 1091 #endif 1092 asmlinkage long sys_futimesat_time32(unsigned int dfd, 1093 const char __user *filename, 1094 struct old_timeval32 __user *t); 1095 asmlinkage long sys_utime32(const char __user *filename, 1096 struct old_utimbuf32 __user *t); 1097 asmlinkage long sys_utimes_time32(const char __user *filename, 1098 struct old_timeval32 __user *t); 1099 asmlinkage long sys_creat(const char __user *pathname, umode_t mode); 1100 asmlinkage long sys_getdents(unsigned int fd, 1101 struct linux_dirent __user *dirent, 1102 unsigned int count); 1103 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp, 1104 fd_set __user *exp, struct __kernel_old_timeval __user *tvp); 1105 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds, 1106 int timeout); 1107 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events, 1108 int maxevents, int timeout); 1109 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf); 1110 asmlinkage long sys_vfork(void); 1111 asmlinkage long sys_recv(int, void __user *, size_t, unsigned); 1112 asmlinkage long sys_send(int, void __user *, size_t, unsigned); 1113 asmlinkage long sys_oldumount(char __user *name); 1114 asmlinkage long sys_uselib(const char __user *library); 1115 asmlinkage long sys_sysfs(int option, 1116 unsigned long arg1, unsigned long arg2); 1117 asmlinkage long sys_fork(void); 1118 1119 /* obsolete */ 1120 asmlinkage long sys_stime(__kernel_old_time_t __user *tptr); 1121 asmlinkage long sys_stime32(old_time32_t __user *tptr); 1122 1123 /* obsolete */ 1124 asmlinkage long sys_sigpending(old_sigset_t __user *uset); 1125 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set, 1126 old_sigset_t __user *oset); 1127 #ifdef CONFIG_OLD_SIGSUSPEND 1128 asmlinkage long sys_sigsuspend(old_sigset_t mask); 1129 #endif 1130 1131 #ifdef CONFIG_OLD_SIGSUSPEND3 1132 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask); 1133 #endif 1134 1135 #ifdef CONFIG_OLD_SIGACTION 1136 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *, 1137 struct old_sigaction __user *); 1138 #endif 1139 asmlinkage long sys_sgetmask(void); 1140 asmlinkage long sys_ssetmask(int newmask); 1141 asmlinkage long sys_signal(int sig, __sighandler_t handler); 1142 1143 /* obsolete */ 1144 asmlinkage long sys_nice(int increment); 1145 1146 /* obsolete */ 1147 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd, 1148 unsigned long cmdline_len, 1149 const char __user *cmdline_ptr, 1150 unsigned long flags); 1151 1152 /* obsolete */ 1153 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options); 1154 1155 /* obsolete */ 1156 #ifdef CONFIG_HAVE_UID16 1157 asmlinkage long sys_chown16(const char __user *filename, 1158 old_uid_t user, old_gid_t group); 1159 asmlinkage long sys_lchown16(const char __user *filename, 1160 old_uid_t user, old_gid_t group); 1161 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group); 1162 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid); 1163 asmlinkage long sys_setgid16(old_gid_t gid); 1164 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid); 1165 asmlinkage long sys_setuid16(old_uid_t uid); 1166 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid); 1167 asmlinkage long sys_getresuid16(old_uid_t __user *ruid, 1168 old_uid_t __user *euid, old_uid_t __user *suid); 1169 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid); 1170 asmlinkage long sys_getresgid16(old_gid_t __user *rgid, 1171 old_gid_t __user *egid, old_gid_t __user *sgid); 1172 asmlinkage long sys_setfsuid16(old_uid_t uid); 1173 asmlinkage long sys_setfsgid16(old_gid_t gid); 1174 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist); 1175 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist); 1176 asmlinkage long sys_getuid16(void); 1177 asmlinkage long sys_geteuid16(void); 1178 asmlinkage long sys_getgid16(void); 1179 asmlinkage long sys_getegid16(void); 1180 #endif 1181 1182 /* obsolete */ 1183 asmlinkage long sys_socketcall(int call, unsigned long __user *args); 1184 1185 /* obsolete */ 1186 asmlinkage long sys_stat(const char __user *filename, 1187 struct __old_kernel_stat __user *statbuf); 1188 asmlinkage long sys_lstat(const char __user *filename, 1189 struct __old_kernel_stat __user *statbuf); 1190 asmlinkage long sys_fstat(unsigned int fd, 1191 struct __old_kernel_stat __user *statbuf); 1192 asmlinkage long sys_readlink(const char __user *path, 1193 char __user *buf, int bufsiz); 1194 1195 /* obsolete */ 1196 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg); 1197 1198 /* obsolete */ 1199 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int); 1200 1201 /* obsolete */ 1202 asmlinkage long sys_gethostname(char __user *name, int len); 1203 asmlinkage long sys_uname(struct old_utsname __user *); 1204 asmlinkage long sys_olduname(struct oldold_utsname __user *); 1205 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT 1206 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim); 1207 #endif 1208 1209 /* obsolete */ 1210 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second, 1211 unsigned long third, void __user *ptr, long fifth); 1212 1213 /* obsolete */ 1214 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len, 1215 unsigned long prot, unsigned long flags, 1216 unsigned long fd, unsigned long pgoff); 1217 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg); 1218 1219 1220 /* 1221 * Not a real system call, but a placeholder for syscalls which are 1222 * not implemented -- see kernel/sys_ni.c 1223 */ 1224 asmlinkage long sys_ni_syscall(void); 1225 1226 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */ 1227 1228 asmlinkage long sys_ni_posix_timers(void); 1229 1230 /* 1231 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly. 1232 * Instead, use one of the functions which work equivalently, such as 1233 * the ksys_xyzyyz() functions prototyped below. 1234 */ 1235 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count); 1236 int ksys_fchown(unsigned int fd, uid_t user, gid_t group); 1237 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count); 1238 void ksys_sync(void); 1239 int ksys_unshare(unsigned long unshare_flags); 1240 int ksys_setsid(void); 1241 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes, 1242 unsigned int flags); 1243 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count, 1244 loff_t pos); 1245 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf, 1246 size_t count, loff_t pos); 1247 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len); 1248 #ifdef CONFIG_ADVISE_SYSCALLS 1249 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); 1250 #else 1251 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, 1252 int advice) 1253 { 1254 return -EINVAL; 1255 } 1256 #endif 1257 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len, 1258 unsigned long prot, unsigned long flags, 1259 unsigned long fd, unsigned long pgoff); 1260 ssize_t ksys_readahead(int fd, loff_t offset, size_t count); 1261 int ksys_ipc(unsigned int call, int first, unsigned long second, 1262 unsigned long third, void __user * ptr, long fifth); 1263 int compat_ksys_ipc(u32 call, int first, int second, 1264 u32 third, u32 ptr, u32 fifth); 1265 1266 /* 1267 * The following kernel syscall equivalents are just wrappers to fs-internal 1268 * functions. Therefore, provide stubs to be inlined at the callsites. 1269 */ 1270 extern int do_fchownat(int dfd, const char __user *filename, uid_t user, 1271 gid_t group, int flag); 1272 1273 static inline long ksys_chown(const char __user *filename, uid_t user, 1274 gid_t group) 1275 { 1276 return do_fchownat(AT_FDCWD, filename, user, group, 0); 1277 } 1278 1279 static inline long ksys_lchown(const char __user *filename, uid_t user, 1280 gid_t group) 1281 { 1282 return do_fchownat(AT_FDCWD, filename, user, group, 1283 AT_SYMLINK_NOFOLLOW); 1284 } 1285 1286 int do_sys_ftruncate(unsigned int fd, loff_t length, int small); 1287 1288 static inline long ksys_ftruncate(unsigned int fd, loff_t length) 1289 { 1290 return do_sys_ftruncate(fd, length, 1); 1291 } 1292 1293 int do_sys_truncate(const char __user *pathname, loff_t length); 1294 1295 static inline long ksys_truncate(const char __user *pathname, loff_t length) 1296 { 1297 return do_sys_truncate(pathname, length); 1298 } 1299 1300 static inline unsigned int ksys_personality(unsigned int personality) 1301 { 1302 unsigned int old = current->personality; 1303 1304 if (personality != 0xffffffff) 1305 set_personality(personality); 1306 1307 return old; 1308 } 1309 1310 /* for __ARCH_WANT_SYS_IPC */ 1311 long ksys_semtimedop(int semid, struct sembuf __user *tsops, 1312 unsigned int nsops, 1313 const struct __kernel_timespec __user *timeout); 1314 long ksys_semget(key_t key, int nsems, int semflg); 1315 long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg); 1316 long ksys_msgget(key_t key, int msgflg); 1317 long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); 1318 long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz, 1319 long msgtyp, int msgflg); 1320 long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz, 1321 int msgflg); 1322 long ksys_shmget(key_t key, size_t size, int shmflg); 1323 long ksys_shmdt(char __user *shmaddr); 1324 long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); 1325 long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems, 1326 unsigned int nsops, 1327 const struct old_timespec32 __user *timeout); 1328 long __do_semtimedop(int semid, struct sembuf *tsems, unsigned int nsops, 1329 const struct timespec64 *timeout, 1330 struct ipc_namespace *ns); 1331 1332 int __sys_getsockopt(int fd, int level, int optname, char __user *optval, 1333 int __user *optlen); 1334 int __sys_setsockopt(int fd, int level, int optname, char __user *optval, 1335 int optlen); 1336 #endif 1337