1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * syscalls.h - Linux syscall interfaces (non-arch-specific)
4 *
5 * Copyright (c) 2004 Randy Dunlap
6 * Copyright (c) 2004 Open Source Development Labs
7 */
8
9 #ifndef _LINUX_SYSCALLS_H
10 #define _LINUX_SYSCALLS_H
11
12 struct __aio_sigset;
13 struct epoll_event;
14 struct iattr;
15 struct inode;
16 struct iocb;
17 struct io_event;
18 struct iovec;
19 struct __kernel_old_itimerval;
20 struct kexec_segment;
21 struct linux_dirent;
22 struct linux_dirent64;
23 struct list_head;
24 struct mmap_arg_struct;
25 struct msgbuf;
26 struct user_msghdr;
27 struct mmsghdr;
28 struct msqid_ds;
29 struct new_utsname;
30 struct nfsctl_arg;
31 struct __old_kernel_stat;
32 struct oldold_utsname;
33 struct old_utsname;
34 struct pollfd;
35 struct rlimit;
36 struct rlimit64;
37 struct rusage;
38 struct sched_param;
39 struct sched_attr;
40 struct sel_arg_struct;
41 struct semaphore;
42 struct sembuf;
43 struct shmid_ds;
44 struct sockaddr;
45 struct stat;
46 struct stat64;
47 struct statfs;
48 struct statfs64;
49 struct statx;
50 struct sysinfo;
51 struct timespec;
52 struct __kernel_old_timeval;
53 struct __kernel_timex;
54 struct timezone;
55 struct tms;
56 struct utimbuf;
57 struct mq_attr;
58 struct compat_stat;
59 struct old_timeval32;
60 struct robust_list_head;
61 struct getcpu_cache;
62 struct old_linux_dirent;
63 struct perf_event_attr;
64 struct file_handle;
65 struct sigaltstack;
66 struct rseq;
67 union bpf_attr;
68 struct io_uring_params;
69 struct clone_args;
70 struct open_how;
71 struct mount_attr;
72 struct landlock_ruleset_attr;
73 enum landlock_rule_type;
74
75 #include <linux/types.h>
76 #include <linux/aio_abi.h>
77 #include <linux/capability.h>
78 #include <linux/signal.h>
79 #include <linux/list.h>
80 #include <linux/bug.h>
81 #include <linux/sem.h>
82 #include <asm/siginfo.h>
83 #include <linux/unistd.h>
84 #include <linux/quota.h>
85 #include <linux/key.h>
86 #include <linux/personality.h>
87 #include <trace/syscall.h>
88
89 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
90 /*
91 * It may be useful for an architecture to override the definitions of the
92 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
93 * different calling convention for syscalls. To allow for that, the prototypes
94 * for the sys_*() functions below will *not* be included if
95 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
96 */
97 #include <asm/syscall_wrapper.h>
98 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
99
100 /*
101 * __MAP - apply a macro to syscall arguments
102 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
103 * m(t1, a1), m(t2, a2), ..., m(tn, an)
104 * The first argument must be equal to the amount of type/name
105 * pairs given. Note that this list of pairs (i.e. the arguments
106 * of __MAP starting at the third one) is in the same format as
107 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
108 */
109 #define __MAP0(m,...)
110 #define __MAP1(m,t,a,...) m(t,a)
111 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
112 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
113 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
114 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
115 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
116 #define __MAP(n,...) __MAP##n(__VA_ARGS__)
117
118 #define __SC_DECL(t, a) t a
119 #define __TYPE_AS(t, v) __same_type((__force t)0, v)
120 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L))
121 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
122 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
123 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
124 #define __SC_CAST(t, a) (__force t) a
125 #define __SC_ARGS(t, a) a
126 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
127
128 #ifdef CONFIG_FTRACE_SYSCALLS
129 #define __SC_STR_ADECL(t, a) #a
130 #define __SC_STR_TDECL(t, a) #t
131
132 extern struct trace_event_class event_class_syscall_enter;
133 extern struct trace_event_class event_class_syscall_exit;
134 extern struct trace_event_functions enter_syscall_print_funcs;
135 extern struct trace_event_functions exit_syscall_print_funcs;
136
137 #define SYSCALL_TRACE_ENTER_EVENT(sname) \
138 static struct syscall_metadata __syscall_meta_##sname; \
139 static struct trace_event_call __used \
140 event_enter_##sname = { \
141 .class = &event_class_syscall_enter, \
142 { \
143 .name = "sys_enter"#sname, \
144 }, \
145 .event.funcs = &enter_syscall_print_funcs, \
146 .data = (void *)&__syscall_meta_##sname,\
147 .flags = TRACE_EVENT_FL_CAP_ANY, \
148 }; \
149 static struct trace_event_call __used \
150 __section("_ftrace_events") \
151 *__event_enter_##sname = &event_enter_##sname;
152
153 #define SYSCALL_TRACE_EXIT_EVENT(sname) \
154 static struct syscall_metadata __syscall_meta_##sname; \
155 static struct trace_event_call __used \
156 event_exit_##sname = { \
157 .class = &event_class_syscall_exit, \
158 { \
159 .name = "sys_exit"#sname, \
160 }, \
161 .event.funcs = &exit_syscall_print_funcs, \
162 .data = (void *)&__syscall_meta_##sname,\
163 .flags = TRACE_EVENT_FL_CAP_ANY, \
164 }; \
165 static struct trace_event_call __used \
166 __section("_ftrace_events") \
167 *__event_exit_##sname = &event_exit_##sname;
168
169 #define SYSCALL_METADATA(sname, nb, ...) \
170 static const char *types_##sname[] = { \
171 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
172 }; \
173 static const char *args_##sname[] = { \
174 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
175 }; \
176 SYSCALL_TRACE_ENTER_EVENT(sname); \
177 SYSCALL_TRACE_EXIT_EVENT(sname); \
178 static struct syscall_metadata __used \
179 __syscall_meta_##sname = { \
180 .name = "sys"#sname, \
181 .syscall_nr = -1, /* Filled in at boot */ \
182 .nb_args = nb, \
183 .types = nb ? types_##sname : NULL, \
184 .args = nb ? args_##sname : NULL, \
185 .enter_event = &event_enter_##sname, \
186 .exit_event = &event_exit_##sname, \
187 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
188 }; \
189 static struct syscall_metadata __used \
190 __section("__syscalls_metadata") \
191 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
192
is_syscall_trace_event(struct trace_event_call * tp_event)193 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
194 {
195 return tp_event->class == &event_class_syscall_enter ||
196 tp_event->class == &event_class_syscall_exit;
197 }
198
199 #else
200 #define SYSCALL_METADATA(sname, nb, ...)
201
is_syscall_trace_event(struct trace_event_call * tp_event)202 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
203 {
204 return 0;
205 }
206 #endif
207
208 #ifndef SYSCALL_DEFINE0
209 #define SYSCALL_DEFINE0(sname) \
210 SYSCALL_METADATA(_##sname, 0); \
211 asmlinkage long sys_##sname(void); \
212 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
213 asmlinkage long sys_##sname(void)
214 #endif /* SYSCALL_DEFINE0 */
215
216 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
217 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
218 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
219 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
220 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
221 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
222
223 #define SYSCALL_DEFINE_MAXARGS 6
224
225 #define SYSCALL_DEFINEx(x, sname, ...) \
226 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
227 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
228
229 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
230
231 /*
232 * The asmlinkage stub is aliased to a function named __se_sys_*() which
233 * sign-extends 32-bit ints to longs whenever needed. The actual work is
234 * done within __do_sys_*().
235 */
236 #ifndef __SYSCALL_DEFINEx
237 #define __SYSCALL_DEFINEx(x, name, ...) \
238 __diag_push(); \
239 __diag_ignore(GCC, 8, "-Wattribute-alias", \
240 "Type aliasing is used to sanitize syscall arguments");\
241 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
242 __attribute__((alias(__stringify(__se_sys##name)))); \
243 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
244 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
245 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
246 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
247 { \
248 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
249 __MAP(x,__SC_TEST,__VA_ARGS__); \
250 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
251 return ret; \
252 } \
253 __diag_pop(); \
254 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
255 #endif /* __SYSCALL_DEFINEx */
256
257 /* For split 64-bit arguments on 32-bit architectures */
258 #ifdef __LITTLE_ENDIAN
259 #define SC_ARG64(name) u32, name##_lo, u32, name##_hi
260 #else
261 #define SC_ARG64(name) u32, name##_hi, u32, name##_lo
262 #endif
263 #define SC_VAL64(type, name) ((type) name##_hi << 32 | name##_lo)
264
265 #ifdef CONFIG_COMPAT
266 #define SYSCALL32_DEFINE1 COMPAT_SYSCALL_DEFINE1
267 #define SYSCALL32_DEFINE2 COMPAT_SYSCALL_DEFINE2
268 #define SYSCALL32_DEFINE3 COMPAT_SYSCALL_DEFINE3
269 #define SYSCALL32_DEFINE4 COMPAT_SYSCALL_DEFINE4
270 #define SYSCALL32_DEFINE5 COMPAT_SYSCALL_DEFINE5
271 #define SYSCALL32_DEFINE6 COMPAT_SYSCALL_DEFINE6
272 #else
273 #define SYSCALL32_DEFINE1 SYSCALL_DEFINE1
274 #define SYSCALL32_DEFINE2 SYSCALL_DEFINE2
275 #define SYSCALL32_DEFINE3 SYSCALL_DEFINE3
276 #define SYSCALL32_DEFINE4 SYSCALL_DEFINE4
277 #define SYSCALL32_DEFINE5 SYSCALL_DEFINE5
278 #define SYSCALL32_DEFINE6 SYSCALL_DEFINE6
279 #endif
280
281 /*
282 * Called before coming back to user-mode. Returning to user-mode with an
283 * address limit different than USER_DS can allow to overwrite kernel memory.
284 */
addr_limit_user_check(void)285 static inline void addr_limit_user_check(void)
286 {
287 #ifdef TIF_FSCHECK
288 if (!test_thread_flag(TIF_FSCHECK))
289 return;
290 #endif
291
292 if (CHECK_DATA_CORRUPTION(uaccess_kernel(),
293 "Invalid address limit on user-mode return"))
294 force_sig(SIGKILL);
295
296 #ifdef TIF_FSCHECK
297 clear_thread_flag(TIF_FSCHECK);
298 #endif
299 }
300
301 /*
302 * These syscall function prototypes are kept in the same order as
303 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
304 * followed by deprecated or obsolete system calls.
305 *
306 * Please note that these prototypes here are only provided for information
307 * purposes, for static analysis, and for linking from the syscall table.
308 * These functions should not be called elsewhere from kernel code.
309 *
310 * As the syscall calling convention may be different from the default
311 * for architectures overriding the syscall calling convention, do not
312 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
313 */
314 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
315 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
316 asmlinkage long sys_io_destroy(aio_context_t ctx);
317 asmlinkage long sys_io_submit(aio_context_t, long,
318 struct iocb __user * __user *);
319 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
320 struct io_event __user *result);
321 asmlinkage long sys_io_getevents(aio_context_t ctx_id,
322 long min_nr,
323 long nr,
324 struct io_event __user *events,
325 struct __kernel_timespec __user *timeout);
326 asmlinkage long sys_io_getevents_time32(__u32 ctx_id,
327 __s32 min_nr,
328 __s32 nr,
329 struct io_event __user *events,
330 struct old_timespec32 __user *timeout);
331 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id,
332 long min_nr,
333 long nr,
334 struct io_event __user *events,
335 struct __kernel_timespec __user *timeout,
336 const struct __aio_sigset *sig);
337 asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id,
338 long min_nr,
339 long nr,
340 struct io_event __user *events,
341 struct old_timespec32 __user *timeout,
342 const struct __aio_sigset *sig);
343 asmlinkage long sys_io_uring_setup(u32 entries,
344 struct io_uring_params __user *p);
345 asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit,
346 u32 min_complete, u32 flags,
347 const void __user *argp, size_t argsz);
348 asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op,
349 void __user *arg, unsigned int nr_args);
350
351 /* fs/xattr.c */
352 asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
353 const void __user *value, size_t size, int flags);
354 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
355 const void __user *value, size_t size, int flags);
356 asmlinkage long sys_fsetxattr(int fd, const char __user *name,
357 const void __user *value, size_t size, int flags);
358 asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
359 void __user *value, size_t size);
360 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
361 void __user *value, size_t size);
362 asmlinkage long sys_fgetxattr(int fd, const char __user *name,
363 void __user *value, size_t size);
364 asmlinkage long sys_listxattr(const char __user *path, char __user *list,
365 size_t size);
366 asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
367 size_t size);
368 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
369 asmlinkage long sys_removexattr(const char __user *path,
370 const char __user *name);
371 asmlinkage long sys_lremovexattr(const char __user *path,
372 const char __user *name);
373 asmlinkage long sys_fremovexattr(int fd, const char __user *name);
374
375 /* fs/dcache.c */
376 asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
377
378 /* fs/cookies.c */
379 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len);
380
381 /* fs/eventfd.c */
382 asmlinkage long sys_eventfd2(unsigned int count, int flags);
383
384 /* fs/eventpoll.c */
385 asmlinkage long sys_epoll_create1(int flags);
386 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
387 struct epoll_event __user *event);
388 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
389 int maxevents, int timeout,
390 const sigset_t __user *sigmask,
391 size_t sigsetsize);
392 asmlinkage long sys_epoll_pwait2(int epfd, struct epoll_event __user *events,
393 int maxevents,
394 const struct __kernel_timespec __user *timeout,
395 const sigset_t __user *sigmask,
396 size_t sigsetsize);
397
398 /* fs/fcntl.c */
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
407 /* fs/inotify_user.c */
408 asmlinkage long sys_inotify_init1(int flags);
409 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
410 u32 mask);
411 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
412
413 /* fs/ioctl.c */
414 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
415 unsigned long arg);
416
417 /* fs/ioprio.c */
418 asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
419 asmlinkage long sys_ioprio_get(int which, int who);
420
421 /* fs/locks.c */
422 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
423
424 /* fs/namei.c */
425 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
426 unsigned dev);
427 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
428 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
429 asmlinkage long sys_symlinkat(const char __user * oldname,
430 int newdfd, const char __user * newname);
431 asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
432 int newdfd, const char __user *newname, int flags);
433 asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
434 int newdfd, const char __user * newname);
435
436 /* fs/namespace.c */
437 asmlinkage long sys_umount(char __user *name, int flags);
438 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
439 char __user *type, unsigned long flags,
440 void __user *data);
441 asmlinkage long sys_pivot_root(const char __user *new_root,
442 const char __user *put_old);
443
444 /* fs/nfsctl.c */
445
446 /* fs/open.c */
447 asmlinkage long sys_statfs(const char __user * path,
448 struct statfs __user *buf);
449 asmlinkage long sys_statfs64(const char __user *path, size_t sz,
450 struct statfs64 __user *buf);
451 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
452 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
453 struct statfs64 __user *buf);
454 asmlinkage long sys_truncate(const char __user *path, long length);
455 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
456 #if BITS_PER_LONG == 32
457 asmlinkage long sys_truncate64(const char __user *path, loff_t length);
458 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
459 #endif
460 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
461 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
462 asmlinkage long sys_faccessat2(int dfd, const char __user *filename, int mode,
463 int flags);
464 asmlinkage long sys_chdir(const char __user *filename);
465 asmlinkage long sys_fchdir(unsigned int fd);
466 asmlinkage long sys_chroot(const char __user *filename);
467 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
468 asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
469 umode_t mode);
470 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
471 gid_t group, int flag);
472 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
473 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
474 umode_t mode);
475 asmlinkage long sys_openat2(int dfd, const char __user *filename,
476 struct open_how *how, size_t size);
477 asmlinkage long sys_close(unsigned int fd);
478 asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd,
479 unsigned int flags);
480 asmlinkage long sys_vhangup(void);
481
482 /* fs/pipe.c */
483 asmlinkage long sys_pipe2(int __user *fildes, int flags);
484
485 /* fs/quota.c */
486 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
487 qid_t id, void __user *addr);
488 asmlinkage long sys_quotactl_path(unsigned int cmd, const char __user *mountpoint,
489 qid_t id, void __user *addr);
490
491 /* fs/readdir.c */
492 asmlinkage long sys_getdents64(unsigned int fd,
493 struct linux_dirent64 __user *dirent,
494 unsigned int count);
495
496 /* fs/read_write.c */
497 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
498 unsigned long offset_low, loff_t __user *result,
499 unsigned int whence);
500 asmlinkage long sys_lseek(unsigned int fd, off_t offset,
501 unsigned int whence);
502 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
503 asmlinkage long sys_write(unsigned int fd, const char __user *buf,
504 size_t count);
505 asmlinkage long sys_readv(unsigned long fd,
506 const struct iovec __user *vec,
507 unsigned long vlen);
508 asmlinkage long sys_writev(unsigned long fd,
509 const struct iovec __user *vec,
510 unsigned long vlen);
511 asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
512 size_t count, loff_t pos);
513 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
514 size_t count, loff_t pos);
515 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
516 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
517 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
518 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
519
520 /* fs/sendfile.c */
521 asmlinkage long sys_sendfile64(int out_fd, int in_fd,
522 loff_t __user *offset, size_t count);
523
524 /* fs/select.c */
525 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
526 fd_set __user *, struct __kernel_timespec __user *,
527 void __user *);
528 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *,
529 fd_set __user *, struct old_timespec32 __user *,
530 void __user *);
531 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
532 struct __kernel_timespec __user *, const sigset_t __user *,
533 size_t);
534 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int,
535 struct old_timespec32 __user *, const sigset_t __user *,
536 size_t);
537
538 /* fs/signalfd.c */
539 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
540
541 /* fs/splice.c */
542 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
543 unsigned long nr_segs, unsigned int flags);
544 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
545 int fd_out, loff_t __user *off_out,
546 size_t len, unsigned int flags);
547 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
548
549 /* fs/stat.c */
550 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
551 int bufsiz);
552 asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
553 struct stat __user *statbuf, int flag);
554 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
555 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
556 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
557 asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
558 struct stat64 __user *statbuf, int flag);
559 #endif
560
561 /* fs/sync.c */
562 asmlinkage long sys_sync(void);
563 asmlinkage long sys_fsync(unsigned int fd);
564 asmlinkage long sys_fdatasync(unsigned int fd);
565 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
566 loff_t offset, loff_t nbytes);
567 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
568 unsigned int flags);
569
570 /* fs/timerfd.c */
571 asmlinkage long sys_timerfd_create(int clockid, int flags);
572 asmlinkage long sys_timerfd_settime(int ufd, int flags,
573 const struct __kernel_itimerspec __user *utmr,
574 struct __kernel_itimerspec __user *otmr);
575 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
576 asmlinkage long sys_timerfd_gettime32(int ufd,
577 struct old_itimerspec32 __user *otmr);
578 asmlinkage long sys_timerfd_settime32(int ufd, int flags,
579 const struct old_itimerspec32 __user *utmr,
580 struct old_itimerspec32 __user *otmr);
581
582 /* fs/utimes.c */
583 asmlinkage long sys_utimensat(int dfd, const char __user *filename,
584 struct __kernel_timespec __user *utimes,
585 int flags);
586 asmlinkage long sys_utimensat_time32(unsigned int dfd,
587 const char __user *filename,
588 struct old_timespec32 __user *t, int flags);
589
590 /* kernel/acct.c */
591 asmlinkage long sys_acct(const char __user *name);
592
593 /* kernel/capability.c */
594 asmlinkage long sys_capget(cap_user_header_t header,
595 cap_user_data_t dataptr);
596 asmlinkage long sys_capset(cap_user_header_t header,
597 const cap_user_data_t data);
598
599 /* kernel/exec_domain.c */
600 asmlinkage long sys_personality(unsigned int personality);
601
602 /* kernel/exit.c */
603 asmlinkage long sys_exit(int error_code);
604 asmlinkage long sys_exit_group(int error_code);
605 asmlinkage long sys_waitid(int which, pid_t pid,
606 struct siginfo __user *infop,
607 int options, struct rusage __user *ru);
608
609 /* kernel/fork.c */
610 asmlinkage long sys_set_tid_address(int __user *tidptr);
611 asmlinkage long sys_unshare(unsigned long unshare_flags);
612
613 /* kernel/futex.c */
614 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
615 const struct __kernel_timespec __user *utime,
616 u32 __user *uaddr2, u32 val3);
617 asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val,
618 const struct old_timespec32 __user *utime,
619 u32 __user *uaddr2, u32 val3);
620 asmlinkage long sys_get_robust_list(int pid,
621 struct robust_list_head __user * __user *head_ptr,
622 size_t __user *len_ptr);
623 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
624 size_t len);
625
626 /* kernel/hrtimer.c */
627 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
628 struct __kernel_timespec __user *rmtp);
629 asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp,
630 struct old_timespec32 __user *rmtp);
631
632 /* kernel/itimer.c */
633 asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value);
634 asmlinkage long sys_setitimer(int which,
635 struct __kernel_old_itimerval __user *value,
636 struct __kernel_old_itimerval __user *ovalue);
637
638 /* kernel/kexec.c */
639 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
640 struct kexec_segment __user *segments,
641 unsigned long flags);
642
643 /* kernel/module.c */
644 asmlinkage long sys_init_module(void __user *umod, unsigned long len,
645 const char __user *uargs);
646 asmlinkage long sys_delete_module(const char __user *name_user,
647 unsigned int flags);
648
649 /* kernel/posix-timers.c */
650 asmlinkage long sys_timer_create(clockid_t which_clock,
651 struct sigevent __user *timer_event_spec,
652 timer_t __user * created_timer_id);
653 asmlinkage long sys_timer_gettime(timer_t timer_id,
654 struct __kernel_itimerspec __user *setting);
655 asmlinkage long sys_timer_getoverrun(timer_t timer_id);
656 asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
657 const struct __kernel_itimerspec __user *new_setting,
658 struct __kernel_itimerspec __user *old_setting);
659 asmlinkage long sys_timer_delete(timer_t timer_id);
660 asmlinkage long sys_clock_settime(clockid_t which_clock,
661 const struct __kernel_timespec __user *tp);
662 asmlinkage long sys_clock_gettime(clockid_t which_clock,
663 struct __kernel_timespec __user *tp);
664 asmlinkage long sys_clock_getres(clockid_t which_clock,
665 struct __kernel_timespec __user *tp);
666 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
667 const struct __kernel_timespec __user *rqtp,
668 struct __kernel_timespec __user *rmtp);
669 asmlinkage long sys_timer_gettime32(timer_t timer_id,
670 struct old_itimerspec32 __user *setting);
671 asmlinkage long sys_timer_settime32(timer_t timer_id, int flags,
672 struct old_itimerspec32 __user *new,
673 struct old_itimerspec32 __user *old);
674 asmlinkage long sys_clock_settime32(clockid_t which_clock,
675 struct old_timespec32 __user *tp);
676 asmlinkage long sys_clock_gettime32(clockid_t which_clock,
677 struct old_timespec32 __user *tp);
678 asmlinkage long sys_clock_getres_time32(clockid_t which_clock,
679 struct old_timespec32 __user *tp);
680 asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags,
681 struct old_timespec32 __user *rqtp,
682 struct old_timespec32 __user *rmtp);
683
684 /* kernel/printk.c */
685 asmlinkage long sys_syslog(int type, char __user *buf, int len);
686
687 /* kernel/ptrace.c */
688 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
689 unsigned long data);
690 /* kernel/sched/core.c */
691
692 asmlinkage long sys_sched_setparam(pid_t pid,
693 struct sched_param __user *param);
694 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
695 struct sched_param __user *param);
696 asmlinkage long sys_sched_getscheduler(pid_t pid);
697 asmlinkage long sys_sched_getparam(pid_t pid,
698 struct sched_param __user *param);
699 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
700 unsigned long __user *user_mask_ptr);
701 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
702 unsigned long __user *user_mask_ptr);
703 asmlinkage long sys_sched_yield(void);
704 asmlinkage long sys_sched_get_priority_max(int policy);
705 asmlinkage long sys_sched_get_priority_min(int policy);
706 asmlinkage long sys_sched_rr_get_interval(pid_t pid,
707 struct __kernel_timespec __user *interval);
708 asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid,
709 struct old_timespec32 __user *interval);
710
711 /* kernel/signal.c */
712 asmlinkage long sys_restart_syscall(void);
713 asmlinkage long sys_kill(pid_t pid, int sig);
714 asmlinkage long sys_tkill(pid_t pid, int sig);
715 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
716 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
717 struct sigaltstack __user *uoss);
718 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
719 #ifndef CONFIG_ODD_RT_SIGACTION
720 asmlinkage long sys_rt_sigaction(int,
721 const struct sigaction __user *,
722 struct sigaction __user *,
723 size_t);
724 #endif
725 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
726 sigset_t __user *oset, size_t sigsetsize);
727 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
728 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
729 siginfo_t __user *uinfo,
730 const struct __kernel_timespec __user *uts,
731 size_t sigsetsize);
732 asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese,
733 siginfo_t __user *uinfo,
734 const struct old_timespec32 __user *uts,
735 size_t sigsetsize);
736 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
737
738 /* kernel/sys.c */
739 asmlinkage long sys_setpriority(int which, int who, int niceval);
740 asmlinkage long sys_getpriority(int which, int who);
741 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
742 void __user *arg);
743 asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
744 asmlinkage long sys_setgid(gid_t gid);
745 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
746 asmlinkage long sys_setuid(uid_t uid);
747 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
748 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
749 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
750 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
751 asmlinkage long sys_setfsuid(uid_t uid);
752 asmlinkage long sys_setfsgid(gid_t gid);
753 asmlinkage long sys_times(struct tms __user *tbuf);
754 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
755 asmlinkage long sys_getpgid(pid_t pid);
756 asmlinkage long sys_getsid(pid_t pid);
757 asmlinkage long sys_setsid(void);
758 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
759 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
760 asmlinkage long sys_newuname(struct new_utsname __user *name);
761 asmlinkage long sys_sethostname(char __user *name, int len);
762 asmlinkage long sys_setdomainname(char __user *name, int len);
763 asmlinkage long sys_getrlimit(unsigned int resource,
764 struct rlimit __user *rlim);
765 asmlinkage long sys_setrlimit(unsigned int resource,
766 struct rlimit __user *rlim);
767 asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
768 asmlinkage long sys_umask(int mask);
769 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
770 unsigned long arg4, unsigned long arg5);
771 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
772
773 /* kernel/time.c */
774 asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv,
775 struct timezone __user *tz);
776 asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv,
777 struct timezone __user *tz);
778 asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p);
779 asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p);
780
781 /* kernel/sys.c */
782 asmlinkage long sys_getpid(void);
783 asmlinkage long sys_getppid(void);
784 asmlinkage long sys_getuid(void);
785 asmlinkage long sys_geteuid(void);
786 asmlinkage long sys_getgid(void);
787 asmlinkage long sys_getegid(void);
788 asmlinkage long sys_gettid(void);
789 asmlinkage long sys_sysinfo(struct sysinfo __user *info);
790
791 /* ipc/mqueue.c */
792 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
793 asmlinkage long sys_mq_unlink(const char __user *name);
794 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);
795 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);
796 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
797 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
798 asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes,
799 char __user *u_msg_ptr,
800 unsigned int msg_len, unsigned int __user *u_msg_prio,
801 const struct old_timespec32 __user *u_abs_timeout);
802 asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes,
803 const char __user *u_msg_ptr,
804 unsigned int msg_len, unsigned int msg_prio,
805 const struct old_timespec32 __user *u_abs_timeout);
806
807 /* ipc/msg.c */
808 asmlinkage long sys_msgget(key_t key, int msgflg);
809 asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
810 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
811 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
812 size_t msgsz, long msgtyp, int msgflg);
813 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
814 size_t msgsz, int msgflg);
815
816 /* ipc/sem.c */
817 asmlinkage long sys_semget(key_t key, int nsems, int semflg);
818 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
819 asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
820 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
821 unsigned nsops,
822 const struct __kernel_timespec __user *timeout);
823 asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops,
824 unsigned nsops,
825 const struct old_timespec32 __user *timeout);
826 asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
827 unsigned nsops);
828
829 /* ipc/shm.c */
830 asmlinkage long sys_shmget(key_t key, size_t size, int flag);
831 asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
832 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
833 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
834 asmlinkage long sys_shmdt(char __user *shmaddr);
835
836 /* net/socket.c */
837 asmlinkage long sys_socket(int, int, int);
838 asmlinkage long sys_socketpair(int, int, int, int __user *);
839 asmlinkage long sys_bind(int, struct sockaddr __user *, int);
840 asmlinkage long sys_listen(int, int);
841 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
842 asmlinkage long sys_connect(int, struct sockaddr __user *, int);
843 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
844 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
845 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
846 struct sockaddr __user *, int);
847 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
848 struct sockaddr __user *, int __user *);
849 asmlinkage long sys_setsockopt(int fd, int level, int optname,
850 char __user *optval, int optlen);
851 asmlinkage long sys_getsockopt(int fd, int level, int optname,
852 char __user *optval, int __user *optlen);
853 asmlinkage long sys_shutdown(int, int);
854 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
855 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
856
857 /* mm/filemap.c */
858 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
859
860 /* mm/nommu.c, also with MMU */
861 asmlinkage long sys_brk(unsigned long brk);
862 asmlinkage long sys_munmap(unsigned long addr, size_t len);
863 asmlinkage long sys_mremap(unsigned long addr,
864 unsigned long old_len, unsigned long new_len,
865 unsigned long flags, unsigned long new_addr);
866
867 /* security/keys/keyctl.c */
868 asmlinkage long sys_add_key(const char __user *_type,
869 const char __user *_description,
870 const void __user *_payload,
871 size_t plen,
872 key_serial_t destringid);
873 asmlinkage long sys_request_key(const char __user *_type,
874 const char __user *_description,
875 const char __user *_callout_info,
876 key_serial_t destringid);
877 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
878 unsigned long arg4, unsigned long arg5);
879
880 /* arch/example/kernel/sys_example.c */
881 #ifdef CONFIG_CLONE_BACKWARDS
882 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
883 int __user *);
884 #else
885 #ifdef CONFIG_CLONE_BACKWARDS3
886 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
887 int __user *, unsigned long);
888 #else
889 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
890 int __user *, unsigned long);
891 #endif
892 #endif
893
894 asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size);
895
896 asmlinkage long sys_execve(const char __user *filename,
897 const char __user *const __user *argv,
898 const char __user *const __user *envp);
899
900 /* mm/fadvise.c */
901 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
902
903 /* mm/, CONFIG_MMU only */
904 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
905 asmlinkage long sys_swapoff(const char __user *specialfile);
906 asmlinkage long sys_mprotect(unsigned long start, size_t len,
907 unsigned long prot);
908 asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
909 asmlinkage long sys_mlock(unsigned long start, size_t len);
910 asmlinkage long sys_munlock(unsigned long start, size_t len);
911 asmlinkage long sys_mlockall(int flags);
912 asmlinkage long sys_munlockall(void);
913 asmlinkage long sys_mincore(unsigned long start, size_t len,
914 unsigned char __user * vec);
915 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
916 asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec,
917 size_t vlen, int behavior, unsigned int flags);
918 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
919 unsigned long prot, unsigned long pgoff,
920 unsigned long flags);
921 asmlinkage long sys_mbind(unsigned long start, unsigned long len,
922 unsigned long mode,
923 const unsigned long __user *nmask,
924 unsigned long maxnode,
925 unsigned flags);
926 asmlinkage long sys_get_mempolicy(int __user *policy,
927 unsigned long __user *nmask,
928 unsigned long maxnode,
929 unsigned long addr, unsigned long flags);
930 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
931 unsigned long maxnode);
932 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
933 const unsigned long __user *from,
934 const unsigned long __user *to);
935 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
936 const void __user * __user *pages,
937 const int __user *nodes,
938 int __user *status,
939 int flags);
940
941 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
942 siginfo_t __user *uinfo);
943 asmlinkage long sys_perf_event_open(
944 struct perf_event_attr __user *attr_uptr,
945 pid_t pid, int cpu, int group_fd, unsigned long flags);
946 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
947 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
948 unsigned int vlen, unsigned flags,
949 struct __kernel_timespec __user *timeout);
950 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
951 unsigned int vlen, unsigned flags,
952 struct old_timespec32 __user *timeout);
953
954 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
955 int options, struct rusage __user *ru);
956 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
957 const struct rlimit64 __user *new_rlim,
958 struct rlimit64 __user *old_rlim);
959 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
960 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
961 u64 mask, int fd,
962 const char __user *pathname);
963 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
964 struct file_handle __user *handle,
965 int __user *mnt_id, int flag);
966 asmlinkage long sys_open_by_handle_at(int mountdirfd,
967 struct file_handle __user *handle,
968 int flags);
969 asmlinkage long sys_clock_adjtime(clockid_t which_clock,
970 struct __kernel_timex __user *tx);
971 asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
972 struct old_timex32 __user *tx);
973 asmlinkage long sys_syncfs(int fd);
974 asmlinkage long sys_setns(int fd, int nstype);
975 asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
976 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
977 unsigned int vlen, unsigned flags);
978 asmlinkage long sys_process_vm_readv(pid_t pid,
979 const struct iovec __user *lvec,
980 unsigned long liovcnt,
981 const struct iovec __user *rvec,
982 unsigned long riovcnt,
983 unsigned long flags);
984 asmlinkage long sys_process_vm_writev(pid_t pid,
985 const struct iovec __user *lvec,
986 unsigned long liovcnt,
987 const struct iovec __user *rvec,
988 unsigned long riovcnt,
989 unsigned long flags);
990 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
991 unsigned long idx1, unsigned long idx2);
992 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
993 asmlinkage long sys_sched_setattr(pid_t pid,
994 struct sched_attr __user *attr,
995 unsigned int flags);
996 asmlinkage long sys_sched_getattr(pid_t pid,
997 struct sched_attr __user *attr,
998 unsigned int size,
999 unsigned int flags);
1000 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
1001 int newdfd, const char __user *newname,
1002 unsigned int flags);
1003 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
1004 void __user *uargs);
1005 asmlinkage long sys_getrandom(char __user *buf, size_t count,
1006 unsigned int flags);
1007 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
1008 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
1009 asmlinkage long sys_execveat(int dfd, const char __user *filename,
1010 const char __user *const __user *argv,
1011 const char __user *const __user *envp, int flags);
1012 asmlinkage long sys_userfaultfd(int flags);
1013 asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id);
1014 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
1015 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
1016 int fd_out, loff_t __user *off_out,
1017 size_t len, unsigned int flags);
1018 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
1019 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
1020 rwf_t flags);
1021 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
1022 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
1023 rwf_t flags);
1024 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
1025 unsigned long prot, int pkey);
1026 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
1027 asmlinkage long sys_pkey_free(int pkey);
1028 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
1029 unsigned mask, struct statx __user *buffer);
1030 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
1031 int flags, uint32_t sig);
1032 asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
1033 asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
1034 int to_dfd, const char __user *to_path,
1035 unsigned int ms_flags);
1036 asmlinkage long sys_mount_setattr(int dfd, const char __user *path,
1037 unsigned int flags,
1038 struct mount_attr __user *uattr, size_t usize);
1039 asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
1040 asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
1041 const void __user *value, int aux);
1042 asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
1043 asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
1044 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
1045 siginfo_t __user *info,
1046 unsigned int flags);
1047 asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags);
1048 asmlinkage long sys_landlock_create_ruleset(const struct landlock_ruleset_attr __user *attr,
1049 size_t size, __u32 flags);
1050 asmlinkage long sys_landlock_add_rule(int ruleset_fd, enum landlock_rule_type rule_type,
1051 const void __user *rule_attr, __u32 flags);
1052 asmlinkage long sys_landlock_restrict_self(int ruleset_fd, __u32 flags);
1053
1054 /*
1055 * Architecture-specific system calls
1056 */
1057
1058 /* arch/x86/kernel/ioport.c */
1059 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
1060
1061 /* pciconfig: alpha, arm, arm64, ia64, sparc */
1062 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
1063 unsigned long off, unsigned long len,
1064 void __user *buf);
1065 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
1066 unsigned long off, unsigned long len,
1067 void __user *buf);
1068 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
1069
1070 /* powerpc */
1071 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
1072 __u32 __user *ustatus);
1073 asmlinkage long sys_spu_create(const char __user *name,
1074 unsigned int flags, umode_t mode, int fd);
1075
1076
1077 /*
1078 * Deprecated system calls which are still defined in
1079 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
1080 */
1081
1082 /* __ARCH_WANT_SYSCALL_NO_AT */
1083 asmlinkage long sys_open(const char __user *filename,
1084 int flags, umode_t mode);
1085 asmlinkage long sys_link(const char __user *oldname,
1086 const char __user *newname);
1087 asmlinkage long sys_unlink(const char __user *pathname);
1088 asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
1089 unsigned dev);
1090 asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
1091 asmlinkage long sys_chown(const char __user *filename,
1092 uid_t user, gid_t group);
1093 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
1094 asmlinkage long sys_rmdir(const char __user *pathname);
1095 asmlinkage long sys_lchown(const char __user *filename,
1096 uid_t user, gid_t group);
1097 asmlinkage long sys_access(const char __user *filename, int mode);
1098 asmlinkage long sys_rename(const char __user *oldname,
1099 const char __user *newname);
1100 asmlinkage long sys_symlink(const char __user *old, const char __user *new);
1101 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
1102 asmlinkage long sys_stat64(const char __user *filename,
1103 struct stat64 __user *statbuf);
1104 asmlinkage long sys_lstat64(const char __user *filename,
1105 struct stat64 __user *statbuf);
1106 #endif
1107
1108 /* __ARCH_WANT_SYSCALL_NO_FLAGS */
1109 asmlinkage long sys_pipe(int __user *fildes);
1110 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
1111 asmlinkage long sys_epoll_create(int size);
1112 asmlinkage long sys_inotify_init(void);
1113 asmlinkage long sys_eventfd(unsigned int count);
1114 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
1115
1116 /* __ARCH_WANT_SYSCALL_OFF_T */
1117 asmlinkage long sys_sendfile(int out_fd, int in_fd,
1118 off_t __user *offset, size_t count);
1119 asmlinkage long sys_newstat(const char __user *filename,
1120 struct stat __user *statbuf);
1121 asmlinkage long sys_newlstat(const char __user *filename,
1122 struct stat __user *statbuf);
1123 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
1124
1125 /* __ARCH_WANT_SYSCALL_DEPRECATED */
1126 asmlinkage long sys_alarm(unsigned int seconds);
1127 asmlinkage long sys_getpgrp(void);
1128 asmlinkage long sys_pause(void);
1129 asmlinkage long sys_time(__kernel_old_time_t __user *tloc);
1130 asmlinkage long sys_time32(old_time32_t __user *tloc);
1131 #ifdef __ARCH_WANT_SYS_UTIME
1132 asmlinkage long sys_utime(char __user *filename,
1133 struct utimbuf __user *times);
1134 asmlinkage long sys_utimes(char __user *filename,
1135 struct __kernel_old_timeval __user *utimes);
1136 asmlinkage long sys_futimesat(int dfd, const char __user *filename,
1137 struct __kernel_old_timeval __user *utimes);
1138 #endif
1139 asmlinkage long sys_futimesat_time32(unsigned int dfd,
1140 const char __user *filename,
1141 struct old_timeval32 __user *t);
1142 asmlinkage long sys_utime32(const char __user *filename,
1143 struct old_utimbuf32 __user *t);
1144 asmlinkage long sys_utimes_time32(const char __user *filename,
1145 struct old_timeval32 __user *t);
1146 asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
1147 asmlinkage long sys_getdents(unsigned int fd,
1148 struct linux_dirent __user *dirent,
1149 unsigned int count);
1150 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
1151 fd_set __user *exp, struct __kernel_old_timeval __user *tvp);
1152 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
1153 int timeout);
1154 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
1155 int maxevents, int timeout);
1156 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
1157 asmlinkage long sys_vfork(void);
1158 asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
1159 asmlinkage long sys_send(int, void __user *, size_t, unsigned);
1160 asmlinkage long sys_bdflush(int func, long data);
1161 asmlinkage long sys_oldumount(char __user *name);
1162 asmlinkage long sys_uselib(const char __user *library);
1163 asmlinkage long sys_sysfs(int option,
1164 unsigned long arg1, unsigned long arg2);
1165 asmlinkage long sys_fork(void);
1166
1167 /* obsolete: kernel/time/time.c */
1168 asmlinkage long sys_stime(__kernel_old_time_t __user *tptr);
1169 asmlinkage long sys_stime32(old_time32_t __user *tptr);
1170
1171 /* obsolete: kernel/signal.c */
1172 asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1173 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1174 old_sigset_t __user *oset);
1175 #ifdef CONFIG_OLD_SIGSUSPEND
1176 asmlinkage long sys_sigsuspend(old_sigset_t mask);
1177 #endif
1178
1179 #ifdef CONFIG_OLD_SIGSUSPEND3
1180 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1181 #endif
1182
1183 #ifdef CONFIG_OLD_SIGACTION
1184 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1185 struct old_sigaction __user *);
1186 #endif
1187 asmlinkage long sys_sgetmask(void);
1188 asmlinkage long sys_ssetmask(int newmask);
1189 asmlinkage long sys_signal(int sig, __sighandler_t handler);
1190
1191 /* obsolete: kernel/sched/core.c */
1192 asmlinkage long sys_nice(int increment);
1193
1194 /* obsolete: kernel/kexec_file.c */
1195 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1196 unsigned long cmdline_len,
1197 const char __user *cmdline_ptr,
1198 unsigned long flags);
1199
1200 /* obsolete: kernel/exit.c */
1201 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1202
1203 /* obsolete: kernel/uid16.c */
1204 #ifdef CONFIG_HAVE_UID16
1205 asmlinkage long sys_chown16(const char __user *filename,
1206 old_uid_t user, old_gid_t group);
1207 asmlinkage long sys_lchown16(const char __user *filename,
1208 old_uid_t user, old_gid_t group);
1209 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1210 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1211 asmlinkage long sys_setgid16(old_gid_t gid);
1212 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1213 asmlinkage long sys_setuid16(old_uid_t uid);
1214 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1215 asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1216 old_uid_t __user *euid, old_uid_t __user *suid);
1217 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1218 asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1219 old_gid_t __user *egid, old_gid_t __user *sgid);
1220 asmlinkage long sys_setfsuid16(old_uid_t uid);
1221 asmlinkage long sys_setfsgid16(old_gid_t gid);
1222 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1223 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1224 asmlinkage long sys_getuid16(void);
1225 asmlinkage long sys_geteuid16(void);
1226 asmlinkage long sys_getgid16(void);
1227 asmlinkage long sys_getegid16(void);
1228 #endif
1229
1230 /* obsolete: net/socket.c */
1231 asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1232
1233 /* obsolete: fs/stat.c */
1234 asmlinkage long sys_stat(const char __user *filename,
1235 struct __old_kernel_stat __user *statbuf);
1236 asmlinkage long sys_lstat(const char __user *filename,
1237 struct __old_kernel_stat __user *statbuf);
1238 asmlinkage long sys_fstat(unsigned int fd,
1239 struct __old_kernel_stat __user *statbuf);
1240 asmlinkage long sys_readlink(const char __user *path,
1241 char __user *buf, int bufsiz);
1242
1243 /* obsolete: fs/select.c */
1244 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1245
1246 /* obsolete: fs/readdir.c */
1247 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1248
1249 /* obsolete: kernel/sys.c */
1250 asmlinkage long sys_gethostname(char __user *name, int len);
1251 asmlinkage long sys_uname(struct old_utsname __user *);
1252 asmlinkage long sys_olduname(struct oldold_utsname __user *);
1253 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1254 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1255 #endif
1256
1257 /* obsolete: ipc */
1258 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1259 unsigned long third, void __user *ptr, long fifth);
1260
1261 /* obsolete: mm/ */
1262 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1263 unsigned long prot, unsigned long flags,
1264 unsigned long fd, unsigned long pgoff);
1265 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1266
1267
1268 /*
1269 * Not a real system call, but a placeholder for syscalls which are
1270 * not implemented -- see kernel/sys_ni.c
1271 */
1272 asmlinkage long sys_ni_syscall(void);
1273
1274 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1275
1276
1277 /*
1278 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1279 * Instead, use one of the functions which work equivalently, such as
1280 * the ksys_xyzyyz() functions prototyped below.
1281 */
1282 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1283 int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1284 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1285 void ksys_sync(void);
1286 int ksys_unshare(unsigned long unshare_flags);
1287 int ksys_setsid(void);
1288 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1289 unsigned int flags);
1290 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1291 loff_t pos);
1292 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1293 size_t count, loff_t pos);
1294 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1295 #ifdef CONFIG_ADVISE_SYSCALLS
1296 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1297 #else
ksys_fadvise64_64(int fd,loff_t offset,loff_t len,int advice)1298 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1299 int advice)
1300 {
1301 return -EINVAL;
1302 }
1303 #endif
1304 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1305 unsigned long prot, unsigned long flags,
1306 unsigned long fd, unsigned long pgoff);
1307 ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1308 int ksys_ipc(unsigned int call, int first, unsigned long second,
1309 unsigned long third, void __user * ptr, long fifth);
1310 int compat_ksys_ipc(u32 call, int first, int second,
1311 u32 third, u32 ptr, u32 fifth);
1312
1313 /*
1314 * The following kernel syscall equivalents are just wrappers to fs-internal
1315 * functions. Therefore, provide stubs to be inlined at the callsites.
1316 */
1317 extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1318 gid_t group, int flag);
1319
ksys_chown(const char __user * filename,uid_t user,gid_t group)1320 static inline long ksys_chown(const char __user *filename, uid_t user,
1321 gid_t group)
1322 {
1323 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1324 }
1325
ksys_lchown(const char __user * filename,uid_t user,gid_t group)1326 static inline long ksys_lchown(const char __user *filename, uid_t user,
1327 gid_t group)
1328 {
1329 return do_fchownat(AT_FDCWD, filename, user, group,
1330 AT_SYMLINK_NOFOLLOW);
1331 }
1332
1333 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1334
ksys_ftruncate(unsigned int fd,loff_t length)1335 static inline long ksys_ftruncate(unsigned int fd, loff_t length)
1336 {
1337 return do_sys_ftruncate(fd, length, 1);
1338 }
1339
1340 extern long do_sys_truncate(const char __user *pathname, loff_t length);
1341
ksys_truncate(const char __user * pathname,loff_t length)1342 static inline long ksys_truncate(const char __user *pathname, loff_t length)
1343 {
1344 return do_sys_truncate(pathname, length);
1345 }
1346
ksys_personality(unsigned int personality)1347 static inline unsigned int ksys_personality(unsigned int personality)
1348 {
1349 unsigned int old = current->personality;
1350
1351 if (personality != 0xffffffff)
1352 set_personality(personality);
1353
1354 return old;
1355 }
1356
1357 /* for __ARCH_WANT_SYS_IPC */
1358 long ksys_semtimedop(int semid, struct sembuf __user *tsops,
1359 unsigned int nsops,
1360 const struct __kernel_timespec __user *timeout);
1361 long ksys_semget(key_t key, int nsems, int semflg);
1362 long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
1363 long ksys_msgget(key_t key, int msgflg);
1364 long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
1365 long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1366 long msgtyp, int msgflg);
1367 long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1368 int msgflg);
1369 long ksys_shmget(key_t key, size_t size, int shmflg);
1370 long ksys_shmdt(char __user *shmaddr);
1371 long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
1372 long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems,
1373 unsigned int nsops,
1374 const struct old_timespec32 __user *timeout);
1375
1376 int __sys_getsockopt(int fd, int level, int optname, char __user *optval,
1377 int __user *optlen);
1378 int __sys_setsockopt(int fd, int level, int optname, char __user *optval,
1379 int optlen);
1380 #endif
1381