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
72 #include <linux/types.h>
73 #include <linux/aio_abi.h>
74 #include <linux/capability.h>
75 #include <linux/signal.h>
76 #include <linux/list.h>
77 #include <linux/bug.h>
78 #include <linux/sem.h>
79 #include <asm/siginfo.h>
80 #include <linux/unistd.h>
81 #include <linux/quota.h>
82 #include <linux/key.h>
83 #include <linux/personality.h>
84 #include <trace/syscall.h>
85
86 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
87 /*
88 * It may be useful for an architecture to override the definitions of the
89 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
90 * different calling convention for syscalls. To allow for that, the prototypes
91 * for the sys_*() functions below will *not* be included if
92 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
93 */
94 #include <asm/syscall_wrapper.h>
95 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
96
97 /*
98 * __MAP - apply a macro to syscall arguments
99 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
100 * m(t1, a1), m(t2, a2), ..., m(tn, an)
101 * The first argument must be equal to the amount of type/name
102 * pairs given. Note that this list of pairs (i.e. the arguments
103 * of __MAP starting at the third one) is in the same format as
104 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
105 */
106 #define __MAP0(m,...)
107 #define __MAP1(m,t,a,...) m(t,a)
108 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
109 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
110 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
111 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
112 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
113 #define __MAP(n,...) __MAP##n(__VA_ARGS__)
114
115 #define __SC_DECL(t, a) t a
116 #define __TYPE_AS(t, v) __same_type((__force t)0, v)
117 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L))
118 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
119 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
120 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
121 #define __SC_CAST(t, a) (__force t) a
122 #define __SC_ARGS(t, a) a
123 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
124
125 #ifdef CONFIG_FTRACE_SYSCALLS
126 #define __SC_STR_ADECL(t, a) #a
127 #define __SC_STR_TDECL(t, a) #t
128
129 extern struct trace_event_class event_class_syscall_enter;
130 extern struct trace_event_class event_class_syscall_exit;
131 extern struct trace_event_functions enter_syscall_print_funcs;
132 extern struct trace_event_functions exit_syscall_print_funcs;
133
134 #define SYSCALL_TRACE_ENTER_EVENT(sname) \
135 static struct syscall_metadata __syscall_meta_##sname; \
136 static struct trace_event_call __used \
137 event_enter_##sname = { \
138 .class = &event_class_syscall_enter, \
139 { \
140 .name = "sys_enter"#sname, \
141 }, \
142 .event.funcs = &enter_syscall_print_funcs, \
143 .data = (void *)&__syscall_meta_##sname,\
144 .flags = TRACE_EVENT_FL_CAP_ANY, \
145 }; \
146 static struct trace_event_call __used \
147 __section("_ftrace_events") \
148 *__event_enter_##sname = &event_enter_##sname;
149
150 #define SYSCALL_TRACE_EXIT_EVENT(sname) \
151 static struct syscall_metadata __syscall_meta_##sname; \
152 static struct trace_event_call __used \
153 event_exit_##sname = { \
154 .class = &event_class_syscall_exit, \
155 { \
156 .name = "sys_exit"#sname, \
157 }, \
158 .event.funcs = &exit_syscall_print_funcs, \
159 .data = (void *)&__syscall_meta_##sname,\
160 .flags = TRACE_EVENT_FL_CAP_ANY, \
161 }; \
162 static struct trace_event_call __used \
163 __section("_ftrace_events") \
164 *__event_exit_##sname = &event_exit_##sname;
165
166 #define SYSCALL_METADATA(sname, nb, ...) \
167 static const char *types_##sname[] = { \
168 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
169 }; \
170 static const char *args_##sname[] = { \
171 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
172 }; \
173 SYSCALL_TRACE_ENTER_EVENT(sname); \
174 SYSCALL_TRACE_EXIT_EVENT(sname); \
175 static struct syscall_metadata __used \
176 __syscall_meta_##sname = { \
177 .name = "sys"#sname, \
178 .syscall_nr = -1, /* Filled in at boot */ \
179 .nb_args = nb, \
180 .types = nb ? types_##sname : NULL, \
181 .args = nb ? args_##sname : NULL, \
182 .enter_event = &event_enter_##sname, \
183 .exit_event = &event_exit_##sname, \
184 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
185 }; \
186 static struct syscall_metadata __used \
187 __section("__syscalls_metadata") \
188 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
189
is_syscall_trace_event(struct trace_event_call * tp_event)190 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
191 {
192 return tp_event->class == &event_class_syscall_enter ||
193 tp_event->class == &event_class_syscall_exit;
194 }
195
196 #else
197 #define SYSCALL_METADATA(sname, nb, ...)
198
is_syscall_trace_event(struct trace_event_call * tp_event)199 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
200 {
201 return 0;
202 }
203 #endif
204
205 #ifndef SYSCALL_DEFINE0
206 #define SYSCALL_DEFINE0(sname) \
207 SYSCALL_METADATA(_##sname, 0); \
208 asmlinkage long sys_##sname(void); \
209 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
210 asmlinkage long sys_##sname(void)
211 #endif /* SYSCALL_DEFINE0 */
212
213 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
214 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
215 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
216 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
217 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
218 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
219
220 #define SYSCALL_DEFINE_MAXARGS 6
221
222 #define SYSCALL_DEFINEx(x, sname, ...) \
223 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
224 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
225
226 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
227
228 /*
229 * The asmlinkage stub is aliased to a function named __se_sys_*() which
230 * sign-extends 32-bit ints to longs whenever needed. The actual work is
231 * done within __do_sys_*().
232 */
233 #ifndef __SYSCALL_DEFINEx
234 #define __SYSCALL_DEFINEx(x, name, ...) \
235 __diag_push(); \
236 __diag_ignore(GCC, 8, "-Wattribute-alias", \
237 "Type aliasing is used to sanitize syscall arguments");\
238 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
239 __attribute__((alias(__stringify(__se_sys##name)))); \
240 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
241 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
242 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
243 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
244 { \
245 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
246 __MAP(x,__SC_TEST,__VA_ARGS__); \
247 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
248 return ret; \
249 } \
250 __diag_pop(); \
251 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
252 #endif /* __SYSCALL_DEFINEx */
253
254 /* For split 64-bit arguments on 32-bit architectures */
255 #ifdef __LITTLE_ENDIAN
256 #define SC_ARG64(name) u32, name##_lo, u32, name##_hi
257 #else
258 #define SC_ARG64(name) u32, name##_hi, u32, name##_lo
259 #endif
260 #define SC_VAL64(type, name) ((type) name##_hi << 32 | name##_lo)
261
262 #ifdef CONFIG_COMPAT
263 #define SYSCALL32_DEFINE1 COMPAT_SYSCALL_DEFINE1
264 #define SYSCALL32_DEFINE2 COMPAT_SYSCALL_DEFINE2
265 #define SYSCALL32_DEFINE3 COMPAT_SYSCALL_DEFINE3
266 #define SYSCALL32_DEFINE4 COMPAT_SYSCALL_DEFINE4
267 #define SYSCALL32_DEFINE5 COMPAT_SYSCALL_DEFINE5
268 #define SYSCALL32_DEFINE6 COMPAT_SYSCALL_DEFINE6
269 #else
270 #define SYSCALL32_DEFINE1 SYSCALL_DEFINE1
271 #define SYSCALL32_DEFINE2 SYSCALL_DEFINE2
272 #define SYSCALL32_DEFINE3 SYSCALL_DEFINE3
273 #define SYSCALL32_DEFINE4 SYSCALL_DEFINE4
274 #define SYSCALL32_DEFINE5 SYSCALL_DEFINE5
275 #define SYSCALL32_DEFINE6 SYSCALL_DEFINE6
276 #endif
277
278 /*
279 * Called before coming back to user-mode. Returning to user-mode with an
280 * address limit different than USER_DS can allow to overwrite kernel memory.
281 */
addr_limit_user_check(void)282 static inline void addr_limit_user_check(void)
283 {
284 #ifdef TIF_FSCHECK
285 if (!test_thread_flag(TIF_FSCHECK))
286 return;
287 #endif
288
289 if (CHECK_DATA_CORRUPTION(uaccess_kernel(),
290 "Invalid address limit on user-mode return"))
291 force_sig(SIGKILL);
292
293 #ifdef TIF_FSCHECK
294 clear_thread_flag(TIF_FSCHECK);
295 #endif
296 }
297
298 /*
299 * These syscall function prototypes are kept in the same order as
300 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
301 * followed by deprecated or obsolete system calls.
302 *
303 * Please note that these prototypes here are only provided for information
304 * purposes, for static analysis, and for linking from the syscall table.
305 * These functions should not be called elsewhere from kernel code.
306 *
307 * As the syscall calling convention may be different from the default
308 * for architectures overriding the syscall calling convention, do not
309 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
310 */
311 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
312 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
313 asmlinkage long sys_io_destroy(aio_context_t ctx);
314 asmlinkage long sys_io_submit(aio_context_t, long,
315 struct iocb __user * __user *);
316 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
317 struct io_event __user *result);
318 asmlinkage long sys_io_getevents(aio_context_t ctx_id,
319 long min_nr,
320 long nr,
321 struct io_event __user *events,
322 struct __kernel_timespec __user *timeout);
323 asmlinkage long sys_io_getevents_time32(__u32 ctx_id,
324 __s32 min_nr,
325 __s32 nr,
326 struct io_event __user *events,
327 struct old_timespec32 __user *timeout);
328 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id,
329 long min_nr,
330 long nr,
331 struct io_event __user *events,
332 struct __kernel_timespec __user *timeout,
333 const struct __aio_sigset *sig);
334 asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id,
335 long min_nr,
336 long nr,
337 struct io_event __user *events,
338 struct old_timespec32 __user *timeout,
339 const struct __aio_sigset *sig);
340 asmlinkage long sys_io_uring_setup(u32 entries,
341 struct io_uring_params __user *p);
342 asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit,
343 u32 min_complete, u32 flags,
344 const sigset_t __user *sig, size_t sigsz);
345 asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op,
346 void __user *arg, unsigned int nr_args);
347
348 /* fs/xattr.c */
349 asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
350 const void __user *value, size_t size, int flags);
351 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
352 const void __user *value, size_t size, int flags);
353 asmlinkage long sys_fsetxattr(int fd, const char __user *name,
354 const void __user *value, size_t size, int flags);
355 asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
356 void __user *value, size_t size);
357 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
358 void __user *value, size_t size);
359 asmlinkage long sys_fgetxattr(int fd, const char __user *name,
360 void __user *value, size_t size);
361 asmlinkage long sys_listxattr(const char __user *path, char __user *list,
362 size_t size);
363 asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
364 size_t size);
365 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
366 asmlinkage long sys_removexattr(const char __user *path,
367 const char __user *name);
368 asmlinkage long sys_lremovexattr(const char __user *path,
369 const char __user *name);
370 asmlinkage long sys_fremovexattr(int fd, const char __user *name);
371
372 /* fs/dcache.c */
373 asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
374
375 /* fs/cookies.c */
376 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len);
377
378 /* fs/eventfd.c */
379 asmlinkage long sys_eventfd2(unsigned int count, int flags);
380
381 /* fs/eventpoll.c */
382 asmlinkage long sys_epoll_create1(int flags);
383 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
384 struct epoll_event __user *event);
385 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
386 int maxevents, int timeout,
387 const sigset_t __user *sigmask,
388 size_t sigsetsize);
389
390 /* fs/fcntl.c */
391 asmlinkage long sys_dup(unsigned int fildes);
392 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
393 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
394 #if BITS_PER_LONG == 32
395 asmlinkage long sys_fcntl64(unsigned int fd,
396 unsigned int cmd, unsigned long arg);
397 #endif
398
399 /* fs/inotify_user.c */
400 asmlinkage long sys_inotify_init1(int flags);
401 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
402 u32 mask);
403 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
404
405 /* fs/ioctl.c */
406 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
407 unsigned long arg);
408
409 /* fs/ioprio.c */
410 asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
411 asmlinkage long sys_ioprio_get(int which, int who);
412
413 /* fs/locks.c */
414 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
415
416 /* fs/namei.c */
417 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
418 unsigned dev);
419 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
420 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
421 asmlinkage long sys_symlinkat(const char __user * oldname,
422 int newdfd, const char __user * newname);
423 asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
424 int newdfd, const char __user *newname, int flags);
425 asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
426 int newdfd, const char __user * newname);
427
428 /* fs/namespace.c */
429 asmlinkage long sys_umount(char __user *name, int flags);
430 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
431 char __user *type, unsigned long flags,
432 void __user *data);
433 asmlinkage long sys_pivot_root(const char __user *new_root,
434 const char __user *put_old);
435
436 /* fs/nfsctl.c */
437
438 /* fs/open.c */
439 asmlinkage long sys_statfs(const char __user * path,
440 struct statfs __user *buf);
441 asmlinkage long sys_statfs64(const char __user *path, size_t sz,
442 struct statfs64 __user *buf);
443 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
444 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
445 struct statfs64 __user *buf);
446 asmlinkage long sys_truncate(const char __user *path, long length);
447 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
448 #if BITS_PER_LONG == 32
449 asmlinkage long sys_truncate64(const char __user *path, loff_t length);
450 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
451 #endif
452 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
453 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
454 asmlinkage long sys_faccessat2(int dfd, const char __user *filename, int mode,
455 int flags);
456 asmlinkage long sys_chdir(const char __user *filename);
457 asmlinkage long sys_fchdir(unsigned int fd);
458 asmlinkage long sys_chroot(const char __user *filename);
459 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
460 asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
461 umode_t mode);
462 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
463 gid_t group, int flag);
464 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
465 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
466 umode_t mode);
467 asmlinkage long sys_openat2(int dfd, const char __user *filename,
468 struct open_how *how, size_t size);
469 asmlinkage long sys_close(unsigned int fd);
470 asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd,
471 unsigned int flags);
472 asmlinkage long sys_vhangup(void);
473
474 /* fs/pipe.c */
475 asmlinkage long sys_pipe2(int __user *fildes, int flags);
476
477 /* fs/quota.c */
478 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
479 qid_t id, void __user *addr);
480
481 /* fs/readdir.c */
482 asmlinkage long sys_getdents64(unsigned int fd,
483 struct linux_dirent64 __user *dirent,
484 unsigned int count);
485
486 /* fs/read_write.c */
487 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
488 unsigned long offset_low, loff_t __user *result,
489 unsigned int whence);
490 asmlinkage long sys_lseek(unsigned int fd, off_t offset,
491 unsigned int whence);
492 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
493 asmlinkage long sys_write(unsigned int fd, const char __user *buf,
494 size_t count);
495 asmlinkage long sys_readv(unsigned long fd,
496 const struct iovec __user *vec,
497 unsigned long vlen);
498 asmlinkage long sys_writev(unsigned long fd,
499 const struct iovec __user *vec,
500 unsigned long vlen);
501 asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
502 size_t count, loff_t pos);
503 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
504 size_t count, loff_t pos);
505 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
506 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
507 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
508 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
509
510 /* fs/sendfile.c */
511 asmlinkage long sys_sendfile64(int out_fd, int in_fd,
512 loff_t __user *offset, size_t count);
513
514 /* fs/select.c */
515 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
516 fd_set __user *, struct __kernel_timespec __user *,
517 void __user *);
518 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *,
519 fd_set __user *, struct old_timespec32 __user *,
520 void __user *);
521 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
522 struct __kernel_timespec __user *, const sigset_t __user *,
523 size_t);
524 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int,
525 struct old_timespec32 __user *, const sigset_t __user *,
526 size_t);
527
528 /* fs/signalfd.c */
529 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
530
531 /* fs/splice.c */
532 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
533 unsigned long nr_segs, unsigned int flags);
534 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
535 int fd_out, loff_t __user *off_out,
536 size_t len, unsigned int flags);
537 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
538
539 /* fs/stat.c */
540 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
541 int bufsiz);
542 asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
543 struct stat __user *statbuf, int flag);
544 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
545 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
546 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
547 asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
548 struct stat64 __user *statbuf, int flag);
549 #endif
550
551 /* fs/sync.c */
552 asmlinkage long sys_sync(void);
553 asmlinkage long sys_fsync(unsigned int fd);
554 asmlinkage long sys_fdatasync(unsigned int fd);
555 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
556 loff_t offset, loff_t nbytes);
557 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
558 unsigned int flags);
559
560 /* fs/timerfd.c */
561 asmlinkage long sys_timerfd_create(int clockid, int flags);
562 asmlinkage long sys_timerfd_settime(int ufd, int flags,
563 const struct __kernel_itimerspec __user *utmr,
564 struct __kernel_itimerspec __user *otmr);
565 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
566 asmlinkage long sys_timerfd_gettime32(int ufd,
567 struct old_itimerspec32 __user *otmr);
568 asmlinkage long sys_timerfd_settime32(int ufd, int flags,
569 const struct old_itimerspec32 __user *utmr,
570 struct old_itimerspec32 __user *otmr);
571
572 /* fs/utimes.c */
573 asmlinkage long sys_utimensat(int dfd, const char __user *filename,
574 struct __kernel_timespec __user *utimes,
575 int flags);
576 asmlinkage long sys_utimensat_time32(unsigned int dfd,
577 const char __user *filename,
578 struct old_timespec32 __user *t, int flags);
579
580 /* kernel/acct.c */
581 asmlinkage long sys_acct(const char __user *name);
582
583 /* kernel/capability.c */
584 asmlinkage long sys_capget(cap_user_header_t header,
585 cap_user_data_t dataptr);
586 asmlinkage long sys_capset(cap_user_header_t header,
587 const cap_user_data_t data);
588
589 /* kernel/exec_domain.c */
590 asmlinkage long sys_personality(unsigned int personality);
591
592 /* kernel/exit.c */
593 asmlinkage long sys_exit(int error_code);
594 asmlinkage long sys_exit_group(int error_code);
595 asmlinkage long sys_waitid(int which, pid_t pid,
596 struct siginfo __user *infop,
597 int options, struct rusage __user *ru);
598
599 /* kernel/fork.c */
600 asmlinkage long sys_set_tid_address(int __user *tidptr);
601 asmlinkage long sys_unshare(unsigned long unshare_flags);
602
603 /* kernel/futex.c */
604 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
605 struct __kernel_timespec __user *utime, u32 __user *uaddr2,
606 u32 val3);
607 asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val,
608 struct old_timespec32 __user *utime, u32 __user *uaddr2,
609 u32 val3);
610 asmlinkage long sys_get_robust_list(int pid,
611 struct robust_list_head __user * __user *head_ptr,
612 size_t __user *len_ptr);
613 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
614 size_t len);
615
616 /* kernel/hrtimer.c */
617 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
618 struct __kernel_timespec __user *rmtp);
619 asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp,
620 struct old_timespec32 __user *rmtp);
621
622 /* kernel/itimer.c */
623 asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value);
624 asmlinkage long sys_setitimer(int which,
625 struct __kernel_old_itimerval __user *value,
626 struct __kernel_old_itimerval __user *ovalue);
627
628 /* kernel/kexec.c */
629 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
630 struct kexec_segment __user *segments,
631 unsigned long flags);
632
633 /* kernel/module.c */
634 asmlinkage long sys_init_module(void __user *umod, unsigned long len,
635 const char __user *uargs);
636 asmlinkage long sys_delete_module(const char __user *name_user,
637 unsigned int flags);
638
639 /* kernel/posix-timers.c */
640 asmlinkage long sys_timer_create(clockid_t which_clock,
641 struct sigevent __user *timer_event_spec,
642 timer_t __user * created_timer_id);
643 asmlinkage long sys_timer_gettime(timer_t timer_id,
644 struct __kernel_itimerspec __user *setting);
645 asmlinkage long sys_timer_getoverrun(timer_t timer_id);
646 asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
647 const struct __kernel_itimerspec __user *new_setting,
648 struct __kernel_itimerspec __user *old_setting);
649 asmlinkage long sys_timer_delete(timer_t timer_id);
650 asmlinkage long sys_clock_settime(clockid_t which_clock,
651 const struct __kernel_timespec __user *tp);
652 asmlinkage long sys_clock_gettime(clockid_t which_clock,
653 struct __kernel_timespec __user *tp);
654 asmlinkage long sys_clock_getres(clockid_t which_clock,
655 struct __kernel_timespec __user *tp);
656 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
657 const struct __kernel_timespec __user *rqtp,
658 struct __kernel_timespec __user *rmtp);
659 asmlinkage long sys_timer_gettime32(timer_t timer_id,
660 struct old_itimerspec32 __user *setting);
661 asmlinkage long sys_timer_settime32(timer_t timer_id, int flags,
662 struct old_itimerspec32 __user *new,
663 struct old_itimerspec32 __user *old);
664 asmlinkage long sys_clock_settime32(clockid_t which_clock,
665 struct old_timespec32 __user *tp);
666 asmlinkage long sys_clock_gettime32(clockid_t which_clock,
667 struct old_timespec32 __user *tp);
668 asmlinkage long sys_clock_getres_time32(clockid_t which_clock,
669 struct old_timespec32 __user *tp);
670 asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags,
671 struct old_timespec32 __user *rqtp,
672 struct old_timespec32 __user *rmtp);
673
674 /* kernel/printk.c */
675 asmlinkage long sys_syslog(int type, char __user *buf, int len);
676
677 /* kernel/ptrace.c */
678 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
679 unsigned long data);
680 /* kernel/sched/core.c */
681
682 asmlinkage long sys_sched_setparam(pid_t pid,
683 struct sched_param __user *param);
684 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
685 struct sched_param __user *param);
686 asmlinkage long sys_sched_getscheduler(pid_t pid);
687 asmlinkage long sys_sched_getparam(pid_t pid,
688 struct sched_param __user *param);
689 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
690 unsigned long __user *user_mask_ptr);
691 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
692 unsigned long __user *user_mask_ptr);
693 asmlinkage long sys_sched_yield(void);
694 asmlinkage long sys_sched_get_priority_max(int policy);
695 asmlinkage long sys_sched_get_priority_min(int policy);
696 asmlinkage long sys_sched_rr_get_interval(pid_t pid,
697 struct __kernel_timespec __user *interval);
698 asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid,
699 struct old_timespec32 __user *interval);
700
701 /* kernel/signal.c */
702 asmlinkage long sys_restart_syscall(void);
703 asmlinkage long sys_kill(pid_t pid, int sig);
704 asmlinkage long sys_tkill(pid_t pid, int sig);
705 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
706 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
707 struct sigaltstack __user *uoss);
708 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
709 #ifndef CONFIG_ODD_RT_SIGACTION
710 asmlinkage long sys_rt_sigaction(int,
711 const struct sigaction __user *,
712 struct sigaction __user *,
713 size_t);
714 #endif
715 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
716 sigset_t __user *oset, size_t sigsetsize);
717 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
718 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
719 siginfo_t __user *uinfo,
720 const struct __kernel_timespec __user *uts,
721 size_t sigsetsize);
722 asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese,
723 siginfo_t __user *uinfo,
724 const struct old_timespec32 __user *uts,
725 size_t sigsetsize);
726 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
727
728 /* kernel/sys.c */
729 asmlinkage long sys_setpriority(int which, int who, int niceval);
730 asmlinkage long sys_getpriority(int which, int who);
731 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
732 void __user *arg);
733 asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
734 asmlinkage long sys_setgid(gid_t gid);
735 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
736 asmlinkage long sys_setuid(uid_t uid);
737 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
738 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
739 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
740 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
741 asmlinkage long sys_setfsuid(uid_t uid);
742 asmlinkage long sys_setfsgid(gid_t gid);
743 asmlinkage long sys_times(struct tms __user *tbuf);
744 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
745 asmlinkage long sys_getpgid(pid_t pid);
746 asmlinkage long sys_getsid(pid_t pid);
747 asmlinkage long sys_setsid(void);
748 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
749 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
750 asmlinkage long sys_newuname(struct new_utsname __user *name);
751 asmlinkage long sys_sethostname(char __user *name, int len);
752 asmlinkage long sys_setdomainname(char __user *name, int len);
753 asmlinkage long sys_getrlimit(unsigned int resource,
754 struct rlimit __user *rlim);
755 asmlinkage long sys_setrlimit(unsigned int resource,
756 struct rlimit __user *rlim);
757 asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
758 asmlinkage long sys_umask(int mask);
759 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
760 unsigned long arg4, unsigned long arg5);
761 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
762
763 /* kernel/time.c */
764 asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv,
765 struct timezone __user *tz);
766 asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv,
767 struct timezone __user *tz);
768 asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p);
769 asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p);
770
771 /* kernel/timer.c */
772 asmlinkage long sys_getpid(void);
773 asmlinkage long sys_getppid(void);
774 asmlinkage long sys_getuid(void);
775 asmlinkage long sys_geteuid(void);
776 asmlinkage long sys_getgid(void);
777 asmlinkage long sys_getegid(void);
778 asmlinkage long sys_gettid(void);
779 asmlinkage long sys_sysinfo(struct sysinfo __user *info);
780
781 /* ipc/mqueue.c */
782 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
783 asmlinkage long sys_mq_unlink(const char __user *name);
784 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);
785 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);
786 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
787 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
788 asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes,
789 char __user *u_msg_ptr,
790 unsigned int msg_len, unsigned int __user *u_msg_prio,
791 const struct old_timespec32 __user *u_abs_timeout);
792 asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes,
793 const char __user *u_msg_ptr,
794 unsigned int msg_len, unsigned int msg_prio,
795 const struct old_timespec32 __user *u_abs_timeout);
796
797 /* ipc/msg.c */
798 asmlinkage long sys_msgget(key_t key, int msgflg);
799 asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
800 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
801 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
802 size_t msgsz, long msgtyp, int msgflg);
803 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
804 size_t msgsz, int msgflg);
805
806 /* ipc/sem.c */
807 asmlinkage long sys_semget(key_t key, int nsems, int semflg);
808 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
809 asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
810 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
811 unsigned nsops,
812 const struct __kernel_timespec __user *timeout);
813 asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops,
814 unsigned nsops,
815 const struct old_timespec32 __user *timeout);
816 asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
817 unsigned nsops);
818
819 /* ipc/shm.c */
820 asmlinkage long sys_shmget(key_t key, size_t size, int flag);
821 asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
822 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
823 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
824 asmlinkage long sys_shmdt(char __user *shmaddr);
825
826 /* net/socket.c */
827 asmlinkage long sys_socket(int, int, int);
828 asmlinkage long sys_socketpair(int, int, int, int __user *);
829 asmlinkage long sys_bind(int, struct sockaddr __user *, int);
830 asmlinkage long sys_listen(int, int);
831 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
832 asmlinkage long sys_connect(int, struct sockaddr __user *, int);
833 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
834 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
835 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
836 struct sockaddr __user *, int);
837 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
838 struct sockaddr __user *, int __user *);
839 asmlinkage long sys_setsockopt(int fd, int level, int optname,
840 char __user *optval, int optlen);
841 asmlinkage long sys_getsockopt(int fd, int level, int optname,
842 char __user *optval, int __user *optlen);
843 asmlinkage long sys_shutdown(int, int);
844 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
845 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
846
847 /* mm/filemap.c */
848 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
849
850 /* mm/nommu.c, also with MMU */
851 asmlinkage long sys_brk(unsigned long brk);
852 asmlinkage long sys_munmap(unsigned long addr, size_t len);
853 asmlinkage long sys_mremap(unsigned long addr,
854 unsigned long old_len, unsigned long new_len,
855 unsigned long flags, unsigned long new_addr);
856
857 /* security/keys/keyctl.c */
858 asmlinkage long sys_add_key(const char __user *_type,
859 const char __user *_description,
860 const void __user *_payload,
861 size_t plen,
862 key_serial_t destringid);
863 asmlinkage long sys_request_key(const char __user *_type,
864 const char __user *_description,
865 const char __user *_callout_info,
866 key_serial_t destringid);
867 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
868 unsigned long arg4, unsigned long arg5);
869
870 /* arch/example/kernel/sys_example.c */
871 #ifdef CONFIG_CLONE_BACKWARDS
872 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
873 int __user *);
874 #else
875 #ifdef CONFIG_CLONE_BACKWARDS3
876 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
877 int __user *, unsigned long);
878 #else
879 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
880 int __user *, unsigned long);
881 #endif
882 #endif
883
884 asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size);
885
886 asmlinkage long sys_execve(const char __user *filename,
887 const char __user *const __user *argv,
888 const char __user *const __user *envp);
889
890 /* mm/fadvise.c */
891 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
892
893 /* mm/, CONFIG_MMU only */
894 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
895 asmlinkage long sys_swapoff(const char __user *specialfile);
896 asmlinkage long sys_mprotect(unsigned long start, size_t len,
897 unsigned long prot);
898 asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
899 asmlinkage long sys_mlock(unsigned long start, size_t len);
900 asmlinkage long sys_munlock(unsigned long start, size_t len);
901 asmlinkage long sys_mlockall(int flags);
902 asmlinkage long sys_munlockall(void);
903 asmlinkage long sys_mincore(unsigned long start, size_t len,
904 unsigned char __user * vec);
905 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
906 asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec,
907 size_t vlen, int behavior, unsigned int flags);
908 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
909 unsigned long prot, unsigned long pgoff,
910 unsigned long flags);
911 asmlinkage long sys_mbind(unsigned long start, unsigned long len,
912 unsigned long mode,
913 const unsigned long __user *nmask,
914 unsigned long maxnode,
915 unsigned flags);
916 asmlinkage long sys_get_mempolicy(int __user *policy,
917 unsigned long __user *nmask,
918 unsigned long maxnode,
919 unsigned long addr, unsigned long flags);
920 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
921 unsigned long maxnode);
922 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
923 const unsigned long __user *from,
924 const unsigned long __user *to);
925 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
926 const void __user * __user *pages,
927 const int __user *nodes,
928 int __user *status,
929 int flags);
930
931 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
932 siginfo_t __user *uinfo);
933 asmlinkage long sys_perf_event_open(
934 struct perf_event_attr __user *attr_uptr,
935 pid_t pid, int cpu, int group_fd, unsigned long flags);
936 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
937 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
938 unsigned int vlen, unsigned flags,
939 struct __kernel_timespec __user *timeout);
940 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
941 unsigned int vlen, unsigned flags,
942 struct old_timespec32 __user *timeout);
943
944 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
945 int options, struct rusage __user *ru);
946 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
947 const struct rlimit64 __user *new_rlim,
948 struct rlimit64 __user *old_rlim);
949 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
950 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
951 u64 mask, int fd,
952 const char __user *pathname);
953 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
954 struct file_handle __user *handle,
955 int __user *mnt_id, int flag);
956 asmlinkage long sys_open_by_handle_at(int mountdirfd,
957 struct file_handle __user *handle,
958 int flags);
959 asmlinkage long sys_clock_adjtime(clockid_t which_clock,
960 struct __kernel_timex __user *tx);
961 asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
962 struct old_timex32 __user *tx);
963 asmlinkage long sys_syncfs(int fd);
964 asmlinkage long sys_setns(int fd, int nstype);
965 asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
966 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
967 unsigned int vlen, unsigned flags);
968 asmlinkage long sys_process_vm_readv(pid_t pid,
969 const struct iovec __user *lvec,
970 unsigned long liovcnt,
971 const struct iovec __user *rvec,
972 unsigned long riovcnt,
973 unsigned long flags);
974 asmlinkage long sys_process_vm_writev(pid_t pid,
975 const struct iovec __user *lvec,
976 unsigned long liovcnt,
977 const struct iovec __user *rvec,
978 unsigned long riovcnt,
979 unsigned long flags);
980 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
981 unsigned long idx1, unsigned long idx2);
982 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
983 asmlinkage long sys_sched_setattr(pid_t pid,
984 struct sched_attr __user *attr,
985 unsigned int flags);
986 asmlinkage long sys_sched_getattr(pid_t pid,
987 struct sched_attr __user *attr,
988 unsigned int size,
989 unsigned int flags);
990 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
991 int newdfd, const char __user *newname,
992 unsigned int flags);
993 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
994 void __user *uargs);
995 asmlinkage long sys_getrandom(char __user *buf, size_t count,
996 unsigned int flags);
997 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
998 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
999 asmlinkage long sys_execveat(int dfd, const char __user *filename,
1000 const char __user *const __user *argv,
1001 const char __user *const __user *envp, int flags);
1002 asmlinkage long sys_userfaultfd(int flags);
1003 asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id);
1004 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
1005 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
1006 int fd_out, loff_t __user *off_out,
1007 size_t len, unsigned int flags);
1008 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
1009 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
1010 rwf_t flags);
1011 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
1012 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
1013 rwf_t flags);
1014 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
1015 unsigned long prot, int pkey);
1016 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
1017 asmlinkage long sys_pkey_free(int pkey);
1018 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
1019 unsigned mask, struct statx __user *buffer);
1020 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
1021 int flags, uint32_t sig);
1022 asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
1023 asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
1024 int to_dfd, const char __user *to_path,
1025 unsigned int ms_flags);
1026 asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
1027 asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
1028 const void __user *value, int aux);
1029 asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
1030 asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
1031 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
1032 siginfo_t __user *info,
1033 unsigned int flags);
1034 asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags);
1035
1036 /*
1037 * Architecture-specific system calls
1038 */
1039
1040 /* arch/x86/kernel/ioport.c */
1041 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
1042
1043 /* pciconfig: alpha, arm, arm64, ia64, sparc */
1044 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
1045 unsigned long off, unsigned long len,
1046 void __user *buf);
1047 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
1048 unsigned long off, unsigned long len,
1049 void __user *buf);
1050 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
1051
1052 /* powerpc */
1053 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
1054 __u32 __user *ustatus);
1055 asmlinkage long sys_spu_create(const char __user *name,
1056 unsigned int flags, umode_t mode, int fd);
1057
1058
1059 /*
1060 * Deprecated system calls which are still defined in
1061 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
1062 */
1063
1064 /* __ARCH_WANT_SYSCALL_NO_AT */
1065 asmlinkage long sys_open(const char __user *filename,
1066 int flags, umode_t mode);
1067 asmlinkage long sys_link(const char __user *oldname,
1068 const char __user *newname);
1069 asmlinkage long sys_unlink(const char __user *pathname);
1070 asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
1071 unsigned dev);
1072 asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
1073 asmlinkage long sys_chown(const char __user *filename,
1074 uid_t user, gid_t group);
1075 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
1076 asmlinkage long sys_rmdir(const char __user *pathname);
1077 asmlinkage long sys_lchown(const char __user *filename,
1078 uid_t user, gid_t group);
1079 asmlinkage long sys_access(const char __user *filename, int mode);
1080 asmlinkage long sys_rename(const char __user *oldname,
1081 const char __user *newname);
1082 asmlinkage long sys_symlink(const char __user *old, const char __user *new);
1083 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
1084 asmlinkage long sys_stat64(const char __user *filename,
1085 struct stat64 __user *statbuf);
1086 asmlinkage long sys_lstat64(const char __user *filename,
1087 struct stat64 __user *statbuf);
1088 #endif
1089
1090 /* __ARCH_WANT_SYSCALL_NO_FLAGS */
1091 asmlinkage long sys_pipe(int __user *fildes);
1092 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
1093 asmlinkage long sys_epoll_create(int size);
1094 asmlinkage long sys_inotify_init(void);
1095 asmlinkage long sys_eventfd(unsigned int count);
1096 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
1097
1098 /* __ARCH_WANT_SYSCALL_OFF_T */
1099 asmlinkage long sys_sendfile(int out_fd, int in_fd,
1100 off_t __user *offset, size_t count);
1101 asmlinkage long sys_newstat(const char __user *filename,
1102 struct stat __user *statbuf);
1103 asmlinkage long sys_newlstat(const char __user *filename,
1104 struct stat __user *statbuf);
1105 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
1106
1107 /* __ARCH_WANT_SYSCALL_DEPRECATED */
1108 asmlinkage long sys_alarm(unsigned int seconds);
1109 asmlinkage long sys_getpgrp(void);
1110 asmlinkage long sys_pause(void);
1111 asmlinkage long sys_time(__kernel_old_time_t __user *tloc);
1112 asmlinkage long sys_time32(old_time32_t __user *tloc);
1113 #ifdef __ARCH_WANT_SYS_UTIME
1114 asmlinkage long sys_utime(char __user *filename,
1115 struct utimbuf __user *times);
1116 asmlinkage long sys_utimes(char __user *filename,
1117 struct __kernel_old_timeval __user *utimes);
1118 asmlinkage long sys_futimesat(int dfd, const char __user *filename,
1119 struct __kernel_old_timeval __user *utimes);
1120 #endif
1121 asmlinkage long sys_futimesat_time32(unsigned int dfd,
1122 const char __user *filename,
1123 struct old_timeval32 __user *t);
1124 asmlinkage long sys_utime32(const char __user *filename,
1125 struct old_utimbuf32 __user *t);
1126 asmlinkage long sys_utimes_time32(const char __user *filename,
1127 struct old_timeval32 __user *t);
1128 asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
1129 asmlinkage long sys_getdents(unsigned int fd,
1130 struct linux_dirent __user *dirent,
1131 unsigned int count);
1132 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
1133 fd_set __user *exp, struct __kernel_old_timeval __user *tvp);
1134 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
1135 int timeout);
1136 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
1137 int maxevents, int timeout);
1138 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
1139 asmlinkage long sys_vfork(void);
1140 asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
1141 asmlinkage long sys_send(int, void __user *, size_t, unsigned);
1142 asmlinkage long sys_bdflush(int func, long data);
1143 asmlinkage long sys_oldumount(char __user *name);
1144 asmlinkage long sys_uselib(const char __user *library);
1145 asmlinkage long sys_sysfs(int option,
1146 unsigned long arg1, unsigned long arg2);
1147 asmlinkage long sys_fork(void);
1148
1149 /* obsolete: kernel/time/time.c */
1150 asmlinkage long sys_stime(__kernel_old_time_t __user *tptr);
1151 asmlinkage long sys_stime32(old_time32_t __user *tptr);
1152
1153 /* obsolete: kernel/signal.c */
1154 asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1155 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1156 old_sigset_t __user *oset);
1157 #ifdef CONFIG_OLD_SIGSUSPEND
1158 asmlinkage long sys_sigsuspend(old_sigset_t mask);
1159 #endif
1160
1161 #ifdef CONFIG_OLD_SIGSUSPEND3
1162 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1163 #endif
1164
1165 #ifdef CONFIG_OLD_SIGACTION
1166 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1167 struct old_sigaction __user *);
1168 #endif
1169 asmlinkage long sys_sgetmask(void);
1170 asmlinkage long sys_ssetmask(int newmask);
1171 asmlinkage long sys_signal(int sig, __sighandler_t handler);
1172
1173 /* obsolete: kernel/sched/core.c */
1174 asmlinkage long sys_nice(int increment);
1175
1176 /* obsolete: kernel/kexec_file.c */
1177 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1178 unsigned long cmdline_len,
1179 const char __user *cmdline_ptr,
1180 unsigned long flags);
1181
1182 /* obsolete: kernel/exit.c */
1183 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1184
1185 /* obsolete: kernel/uid16.c */
1186 #ifdef CONFIG_HAVE_UID16
1187 asmlinkage long sys_chown16(const char __user *filename,
1188 old_uid_t user, old_gid_t group);
1189 asmlinkage long sys_lchown16(const char __user *filename,
1190 old_uid_t user, old_gid_t group);
1191 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1192 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1193 asmlinkage long sys_setgid16(old_gid_t gid);
1194 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1195 asmlinkage long sys_setuid16(old_uid_t uid);
1196 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1197 asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1198 old_uid_t __user *euid, old_uid_t __user *suid);
1199 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1200 asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1201 old_gid_t __user *egid, old_gid_t __user *sgid);
1202 asmlinkage long sys_setfsuid16(old_uid_t uid);
1203 asmlinkage long sys_setfsgid16(old_gid_t gid);
1204 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1205 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1206 asmlinkage long sys_getuid16(void);
1207 asmlinkage long sys_geteuid16(void);
1208 asmlinkage long sys_getgid16(void);
1209 asmlinkage long sys_getegid16(void);
1210 #endif
1211
1212 /* obsolete: net/socket.c */
1213 asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1214
1215 /* obsolete: fs/stat.c */
1216 asmlinkage long sys_stat(const char __user *filename,
1217 struct __old_kernel_stat __user *statbuf);
1218 asmlinkage long sys_lstat(const char __user *filename,
1219 struct __old_kernel_stat __user *statbuf);
1220 asmlinkage long sys_fstat(unsigned int fd,
1221 struct __old_kernel_stat __user *statbuf);
1222 asmlinkage long sys_readlink(const char __user *path,
1223 char __user *buf, int bufsiz);
1224
1225 /* obsolete: fs/select.c */
1226 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1227
1228 /* obsolete: fs/readdir.c */
1229 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1230
1231 /* obsolete: kernel/sys.c */
1232 asmlinkage long sys_gethostname(char __user *name, int len);
1233 asmlinkage long sys_uname(struct old_utsname __user *);
1234 asmlinkage long sys_olduname(struct oldold_utsname __user *);
1235 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1236 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1237 #endif
1238
1239 /* obsolete: ipc */
1240 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1241 unsigned long third, void __user *ptr, long fifth);
1242
1243 /* obsolete: mm/ */
1244 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1245 unsigned long prot, unsigned long flags,
1246 unsigned long fd, unsigned long pgoff);
1247 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1248
1249
1250 /*
1251 * Not a real system call, but a placeholder for syscalls which are
1252 * not implemented -- see kernel/sys_ni.c
1253 */
1254 asmlinkage long sys_ni_syscall(void);
1255
1256 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1257
1258
1259 /*
1260 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1261 * Instead, use one of the functions which work equivalently, such as
1262 * the ksys_xyzyyz() functions prototyped below.
1263 */
1264 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1265 int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1266 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1267 void ksys_sync(void);
1268 int ksys_unshare(unsigned long unshare_flags);
1269 int ksys_setsid(void);
1270 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1271 unsigned int flags);
1272 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1273 loff_t pos);
1274 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1275 size_t count, loff_t pos);
1276 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1277 #ifdef CONFIG_ADVISE_SYSCALLS
1278 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1279 #else
ksys_fadvise64_64(int fd,loff_t offset,loff_t len,int advice)1280 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1281 int advice)
1282 {
1283 return -EINVAL;
1284 }
1285 #endif
1286 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1287 unsigned long prot, unsigned long flags,
1288 unsigned long fd, unsigned long pgoff);
1289 ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1290 int ksys_ipc(unsigned int call, int first, unsigned long second,
1291 unsigned long third, void __user * ptr, long fifth);
1292 int compat_ksys_ipc(u32 call, int first, int second,
1293 u32 third, u32 ptr, u32 fifth);
1294
1295 /*
1296 * The following kernel syscall equivalents are just wrappers to fs-internal
1297 * functions. Therefore, provide stubs to be inlined at the callsites.
1298 */
1299 extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1300 gid_t group, int flag);
1301
ksys_chown(const char __user * filename,uid_t user,gid_t group)1302 static inline long ksys_chown(const char __user *filename, uid_t user,
1303 gid_t group)
1304 {
1305 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1306 }
1307
ksys_lchown(const char __user * filename,uid_t user,gid_t group)1308 static inline long ksys_lchown(const char __user *filename, uid_t user,
1309 gid_t group)
1310 {
1311 return do_fchownat(AT_FDCWD, filename, user, group,
1312 AT_SYMLINK_NOFOLLOW);
1313 }
1314
1315 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1316
ksys_ftruncate(unsigned int fd,loff_t length)1317 static inline long ksys_ftruncate(unsigned int fd, loff_t length)
1318 {
1319 return do_sys_ftruncate(fd, length, 1);
1320 }
1321
1322 extern int __close_fd(struct files_struct *files, unsigned int fd);
1323
1324 /*
1325 * In contrast to sys_close(), this stub does not check whether the syscall
1326 * should or should not be restarted, but returns the raw error codes from
1327 * __close_fd().
1328 */
ksys_close(unsigned int fd)1329 static inline int ksys_close(unsigned int fd)
1330 {
1331 return __close_fd(current->files, fd);
1332 }
1333
1334 extern long do_sys_truncate(const char __user *pathname, loff_t length);
1335
ksys_truncate(const char __user * pathname,loff_t length)1336 static inline long ksys_truncate(const char __user *pathname, loff_t length)
1337 {
1338 return do_sys_truncate(pathname, length);
1339 }
1340
ksys_personality(unsigned int personality)1341 static inline unsigned int ksys_personality(unsigned int personality)
1342 {
1343 unsigned int old = current->personality;
1344
1345 if (personality != 0xffffffff)
1346 set_personality(personality);
1347
1348 return old;
1349 }
1350
1351 /* for __ARCH_WANT_SYS_IPC */
1352 long ksys_semtimedop(int semid, struct sembuf __user *tsops,
1353 unsigned int nsops,
1354 const struct __kernel_timespec __user *timeout);
1355 long ksys_semget(key_t key, int nsems, int semflg);
1356 long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
1357 long ksys_msgget(key_t key, int msgflg);
1358 long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
1359 long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1360 long msgtyp, int msgflg);
1361 long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1362 int msgflg);
1363 long ksys_shmget(key_t key, size_t size, int shmflg);
1364 long ksys_shmdt(char __user *shmaddr);
1365 long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
1366 long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems,
1367 unsigned int nsops,
1368 const struct old_timespec32 __user *timeout);
1369
1370 int __sys_getsockopt(int fd, int level, int optname, char __user *optval,
1371 int __user *optlen);
1372 int __sys_setsockopt(int fd, int level, int optname, char __user *optval,
1373 int optlen);
1374 #endif
1375