1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * syscalls.h - Linux syscall interfaces (non-arch-specific)
4 *
5 * Copyright (c) 2004 Randy Dunlap
6 * Copyright (c) 2004 Open Source Development Labs
7 */
8
9 #ifndef _LINUX_SYSCALLS_H
10 #define _LINUX_SYSCALLS_H
11
12 struct __aio_sigset;
13 struct epoll_event;
14 struct iattr;
15 struct inode;
16 struct iocb;
17 struct io_event;
18 struct iovec;
19 struct __kernel_old_itimerval;
20 struct kexec_segment;
21 struct linux_dirent;
22 struct linux_dirent64;
23 struct list_head;
24 struct mmap_arg_struct;
25 struct msgbuf;
26 struct user_msghdr;
27 struct mmsghdr;
28 struct msqid_ds;
29 struct new_utsname;
30 struct nfsctl_arg;
31 struct __old_kernel_stat;
32 struct oldold_utsname;
33 struct old_utsname;
34 struct pollfd;
35 struct rlimit;
36 struct rlimit64;
37 struct rusage;
38 struct sched_param;
39 struct sched_attr;
40 struct sel_arg_struct;
41 struct semaphore;
42 struct sembuf;
43 struct shmid_ds;
44 struct sockaddr;
45 struct stat;
46 struct stat64;
47 struct statfs;
48 struct statfs64;
49 struct statx;
50 struct sysinfo;
51 struct timespec;
52 struct __kernel_old_timeval;
53 struct __kernel_timex;
54 struct timezone;
55 struct tms;
56 struct utimbuf;
57 struct mq_attr;
58 struct compat_stat;
59 struct old_timeval32;
60 struct robust_list_head;
61 struct futex_waitv;
62 struct getcpu_cache;
63 struct old_linux_dirent;
64 struct perf_event_attr;
65 struct file_handle;
66 struct sigaltstack;
67 struct rseq;
68 union bpf_attr;
69 struct io_uring_params;
70 struct clone_args;
71 struct open_how;
72 struct mount_attr;
73 struct landlock_ruleset_attr;
74 enum landlock_rule_type;
75 struct cachestat_range;
76 struct cachestat;
77
78 #include <linux/types.h>
79 #include <linux/aio_abi.h>
80 #include <linux/capability.h>
81 #include <linux/signal.h>
82 #include <linux/list.h>
83 #include <linux/bug.h>
84 #include <linux/sem.h>
85 #include <asm/siginfo.h>
86 #include <linux/unistd.h>
87 #include <linux/quota.h>
88 #include <linux/key.h>
89 #include <linux/personality.h>
90 #include <trace/syscall.h>
91
92 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
93 /*
94 * It may be useful for an architecture to override the definitions of the
95 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
96 * different calling convention for syscalls. To allow for that, the prototypes
97 * for the sys_*() functions below will *not* be included if
98 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
99 */
100 #include <asm/syscall_wrapper.h>
101 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
102
103 /*
104 * __MAP - apply a macro to syscall arguments
105 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
106 * m(t1, a1), m(t2, a2), ..., m(tn, an)
107 * The first argument must be equal to the amount of type/name
108 * pairs given. Note that this list of pairs (i.e. the arguments
109 * of __MAP starting at the third one) is in the same format as
110 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
111 */
112 #define __MAP0(m,...)
113 #define __MAP1(m,t,a,...) m(t,a)
114 #define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
115 #define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
116 #define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
117 #define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
118 #define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
119 #define __MAP(n,...) __MAP##n(__VA_ARGS__)
120
121 #define __SC_DECL(t, a) t a
122 #define __TYPE_AS(t, v) __same_type((__force t)0, v)
123 #define __TYPE_IS_L(t) (__TYPE_AS(t, 0L))
124 #define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
125 #define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
126 #define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
127 #define __SC_CAST(t, a) (__force t) a
128 #define __SC_TYPE(t, a) t
129 #define __SC_ARGS(t, a) a
130 #define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
131
132 #ifdef CONFIG_FTRACE_SYSCALLS
133 #define __SC_STR_ADECL(t, a) #a
134 #define __SC_STR_TDECL(t, a) #t
135
136 extern struct trace_event_class event_class_syscall_enter;
137 extern struct trace_event_class event_class_syscall_exit;
138 extern struct trace_event_functions enter_syscall_print_funcs;
139 extern struct trace_event_functions exit_syscall_print_funcs;
140
141 #define SYSCALL_TRACE_ENTER_EVENT(sname) \
142 static struct syscall_metadata __syscall_meta_##sname; \
143 static struct trace_event_call __used \
144 event_enter_##sname = { \
145 .class = &event_class_syscall_enter, \
146 { \
147 .name = "sys_enter"#sname, \
148 }, \
149 .event.funcs = &enter_syscall_print_funcs, \
150 .data = (void *)&__syscall_meta_##sname,\
151 .flags = TRACE_EVENT_FL_CAP_ANY, \
152 }; \
153 static struct trace_event_call __used \
154 __section("_ftrace_events") \
155 *__event_enter_##sname = &event_enter_##sname;
156
157 #define SYSCALL_TRACE_EXIT_EVENT(sname) \
158 static struct syscall_metadata __syscall_meta_##sname; \
159 static struct trace_event_call __used \
160 event_exit_##sname = { \
161 .class = &event_class_syscall_exit, \
162 { \
163 .name = "sys_exit"#sname, \
164 }, \
165 .event.funcs = &exit_syscall_print_funcs, \
166 .data = (void *)&__syscall_meta_##sname,\
167 .flags = TRACE_EVENT_FL_CAP_ANY, \
168 }; \
169 static struct trace_event_call __used \
170 __section("_ftrace_events") \
171 *__event_exit_##sname = &event_exit_##sname;
172
173 #define SYSCALL_METADATA(sname, nb, ...) \
174 static const char *types_##sname[] = { \
175 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
176 }; \
177 static const char *args_##sname[] = { \
178 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
179 }; \
180 SYSCALL_TRACE_ENTER_EVENT(sname); \
181 SYSCALL_TRACE_EXIT_EVENT(sname); \
182 static struct syscall_metadata __used \
183 __syscall_meta_##sname = { \
184 .name = "sys"#sname, \
185 .syscall_nr = -1, /* Filled in at boot */ \
186 .nb_args = nb, \
187 .types = nb ? types_##sname : NULL, \
188 .args = nb ? args_##sname : NULL, \
189 .enter_event = &event_enter_##sname, \
190 .exit_event = &event_exit_##sname, \
191 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
192 }; \
193 static struct syscall_metadata __used \
194 __section("__syscalls_metadata") \
195 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
196
is_syscall_trace_event(struct trace_event_call * tp_event)197 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
198 {
199 return tp_event->class == &event_class_syscall_enter ||
200 tp_event->class == &event_class_syscall_exit;
201 }
202
203 #else
204 #define SYSCALL_METADATA(sname, nb, ...)
205
is_syscall_trace_event(struct trace_event_call * tp_event)206 static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
207 {
208 return 0;
209 }
210 #endif
211
212 #ifndef SYSCALL_DEFINE0
213 #define SYSCALL_DEFINE0(sname) \
214 SYSCALL_METADATA(_##sname, 0); \
215 asmlinkage long sys_##sname(void); \
216 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
217 asmlinkage long sys_##sname(void)
218 #endif /* SYSCALL_DEFINE0 */
219
220 #define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
221 #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
222 #define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
223 #define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
224 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
225 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
226
227 #define SYSCALL_DEFINE_MAXARGS 6
228
229 #define SYSCALL_DEFINEx(x, sname, ...) \
230 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
231 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
232
233 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
234
235 /*
236 * The asmlinkage stub is aliased to a function named __se_sys_*() which
237 * sign-extends 32-bit ints to longs whenever needed. The actual work is
238 * done within __do_sys_*().
239 */
240 #ifndef __SYSCALL_DEFINEx
241 #define __SYSCALL_DEFINEx(x, name, ...) \
242 __diag_push(); \
243 __diag_ignore(GCC, 8, "-Wattribute-alias", \
244 "Type aliasing is used to sanitize syscall arguments");\
245 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
246 __attribute__((alias(__stringify(__se_sys##name)))); \
247 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
248 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
249 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
250 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
251 { \
252 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
253 __MAP(x,__SC_TEST,__VA_ARGS__); \
254 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
255 return ret; \
256 } \
257 __diag_pop(); \
258 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
259 #endif /* __SYSCALL_DEFINEx */
260
261 /* For split 64-bit arguments on 32-bit architectures */
262 #ifdef __LITTLE_ENDIAN
263 #define SC_ARG64(name) u32, name##_lo, u32, name##_hi
264 #else
265 #define SC_ARG64(name) u32, name##_hi, u32, name##_lo
266 #endif
267 #define SC_VAL64(type, name) ((type) name##_hi << 32 | name##_lo)
268
269 #ifdef CONFIG_COMPAT
270 #define SYSCALL32_DEFINE0 COMPAT_SYSCALL_DEFINE0
271 #define SYSCALL32_DEFINE1 COMPAT_SYSCALL_DEFINE1
272 #define SYSCALL32_DEFINE2 COMPAT_SYSCALL_DEFINE2
273 #define SYSCALL32_DEFINE3 COMPAT_SYSCALL_DEFINE3
274 #define SYSCALL32_DEFINE4 COMPAT_SYSCALL_DEFINE4
275 #define SYSCALL32_DEFINE5 COMPAT_SYSCALL_DEFINE5
276 #define SYSCALL32_DEFINE6 COMPAT_SYSCALL_DEFINE6
277 #else
278 #define SYSCALL32_DEFINE0 SYSCALL_DEFINE0
279 #define SYSCALL32_DEFINE1 SYSCALL_DEFINE1
280 #define SYSCALL32_DEFINE2 SYSCALL_DEFINE2
281 #define SYSCALL32_DEFINE3 SYSCALL_DEFINE3
282 #define SYSCALL32_DEFINE4 SYSCALL_DEFINE4
283 #define SYSCALL32_DEFINE5 SYSCALL_DEFINE5
284 #define SYSCALL32_DEFINE6 SYSCALL_DEFINE6
285 #endif
286
287 /*
288 * These syscall function prototypes are kept in the same order as
289 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
290 * followed by deprecated or obsolete system calls.
291 *
292 * Please note that these prototypes here are only provided for information
293 * purposes, for static analysis, and for linking from the syscall table.
294 * These functions should not be called elsewhere from kernel code.
295 *
296 * As the syscall calling convention may be different from the default
297 * for architectures overriding the syscall calling convention, do not
298 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
299 */
300 #ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
301 asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
302 asmlinkage long sys_io_destroy(aio_context_t ctx);
303 asmlinkage long sys_io_submit(aio_context_t, long,
304 struct iocb __user * __user *);
305 asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
306 struct io_event __user *result);
307 asmlinkage long sys_io_getevents(aio_context_t ctx_id,
308 long min_nr,
309 long nr,
310 struct io_event __user *events,
311 struct __kernel_timespec __user *timeout);
312 asmlinkage long sys_io_getevents_time32(__u32 ctx_id,
313 __s32 min_nr,
314 __s32 nr,
315 struct io_event __user *events,
316 struct old_timespec32 __user *timeout);
317 asmlinkage long sys_io_pgetevents(aio_context_t ctx_id,
318 long min_nr,
319 long nr,
320 struct io_event __user *events,
321 struct __kernel_timespec __user *timeout,
322 const struct __aio_sigset *sig);
323 asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id,
324 long min_nr,
325 long nr,
326 struct io_event __user *events,
327 struct old_timespec32 __user *timeout,
328 const struct __aio_sigset *sig);
329 asmlinkage long sys_io_uring_setup(u32 entries,
330 struct io_uring_params __user *p);
331 asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit,
332 u32 min_complete, u32 flags,
333 const void __user *argp, size_t argsz);
334 asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op,
335 void __user *arg, unsigned int nr_args);
336 asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
337 const void __user *value, size_t size, int flags);
338 asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
339 const void __user *value, size_t size, int flags);
340 asmlinkage long sys_fsetxattr(int fd, const char __user *name,
341 const void __user *value, size_t size, int flags);
342 asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
343 void __user *value, size_t size);
344 asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
345 void __user *value, size_t size);
346 asmlinkage long sys_fgetxattr(int fd, const char __user *name,
347 void __user *value, size_t size);
348 asmlinkage long sys_listxattr(const char __user *path, char __user *list,
349 size_t size);
350 asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
351 size_t size);
352 asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
353 asmlinkage long sys_removexattr(const char __user *path,
354 const char __user *name);
355 asmlinkage long sys_lremovexattr(const char __user *path,
356 const char __user *name);
357 asmlinkage long sys_fremovexattr(int fd, const char __user *name);
358 asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
359 asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len);
360 asmlinkage long sys_eventfd2(unsigned int count, int flags);
361 asmlinkage long sys_epoll_create1(int flags);
362 asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
363 struct epoll_event __user *event);
364 asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
365 int maxevents, int timeout,
366 const sigset_t __user *sigmask,
367 size_t sigsetsize);
368 asmlinkage long sys_epoll_pwait2(int epfd, struct epoll_event __user *events,
369 int maxevents,
370 const struct __kernel_timespec __user *timeout,
371 const sigset_t __user *sigmask,
372 size_t sigsetsize);
373 asmlinkage long sys_dup(unsigned int fildes);
374 asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
375 asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
376 #if BITS_PER_LONG == 32
377 asmlinkage long sys_fcntl64(unsigned int fd,
378 unsigned int cmd, unsigned long arg);
379 #endif
380 asmlinkage long sys_inotify_init1(int flags);
381 asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
382 u32 mask);
383 asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
384 asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
385 unsigned long arg);
386 asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
387 asmlinkage long sys_ioprio_get(int which, int who);
388 asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
389 asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
390 unsigned dev);
391 asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
392 asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
393 asmlinkage long sys_symlinkat(const char __user * oldname,
394 int newdfd, const char __user * newname);
395 asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
396 int newdfd, const char __user *newname, int flags);
397 asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
398 int newdfd, const char __user * newname);
399 asmlinkage long sys_umount(char __user *name, int flags);
400 asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
401 char __user *type, unsigned long flags,
402 void __user *data);
403 asmlinkage long sys_pivot_root(const char __user *new_root,
404 const char __user *put_old);
405 asmlinkage long sys_statfs(const char __user * path,
406 struct statfs __user *buf);
407 asmlinkage long sys_statfs64(const char __user *path, size_t sz,
408 struct statfs64 __user *buf);
409 asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
410 asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
411 struct statfs64 __user *buf);
412 asmlinkage long sys_truncate(const char __user *path, long length);
413 asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
414 #if BITS_PER_LONG == 32
415 asmlinkage long sys_truncate64(const char __user *path, loff_t length);
416 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
417 #endif
418 asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
419 asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
420 asmlinkage long sys_faccessat2(int dfd, const char __user *filename, int mode,
421 int flags);
422 asmlinkage long sys_chdir(const char __user *filename);
423 asmlinkage long sys_fchdir(unsigned int fd);
424 asmlinkage long sys_chroot(const char __user *filename);
425 asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
426 asmlinkage long sys_fchmodat(int dfd, const char __user *filename,
427 umode_t mode);
428 asmlinkage long sys_fchmodat2(int dfd, const char __user *filename,
429 umode_t mode, unsigned int flags);
430 asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
431 gid_t group, int flag);
432 asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
433 asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
434 umode_t mode);
435 asmlinkage long sys_openat2(int dfd, const char __user *filename,
436 struct open_how *how, size_t size);
437 asmlinkage long sys_close(unsigned int fd);
438 asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd,
439 unsigned int flags);
440 asmlinkage long sys_vhangup(void);
441 asmlinkage long sys_pipe2(int __user *fildes, int flags);
442 asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
443 qid_t id, void __user *addr);
444 asmlinkage long sys_quotactl_fd(unsigned int fd, unsigned int cmd, qid_t id,
445 void __user *addr);
446 asmlinkage long sys_getdents64(unsigned int fd,
447 struct linux_dirent64 __user *dirent,
448 unsigned int count);
449 asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
450 unsigned long offset_low, loff_t __user *result,
451 unsigned int whence);
452 asmlinkage long sys_lseek(unsigned int fd, off_t offset,
453 unsigned int whence);
454 asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
455 asmlinkage long sys_write(unsigned int fd, const char __user *buf,
456 size_t count);
457 asmlinkage long sys_readv(unsigned long fd,
458 const struct iovec __user *vec,
459 unsigned long vlen);
460 asmlinkage long sys_writev(unsigned long fd,
461 const struct iovec __user *vec,
462 unsigned long vlen);
463 asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
464 size_t count, loff_t pos);
465 asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
466 size_t count, loff_t pos);
467 asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
468 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
469 asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
470 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
471 asmlinkage long sys_sendfile64(int out_fd, int in_fd,
472 loff_t __user *offset, size_t count);
473 asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
474 fd_set __user *, struct __kernel_timespec __user *,
475 void __user *);
476 asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *,
477 fd_set __user *, struct old_timespec32 __user *,
478 void __user *);
479 asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
480 struct __kernel_timespec __user *, const sigset_t __user *,
481 size_t);
482 asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int,
483 struct old_timespec32 __user *, const sigset_t __user *,
484 size_t);
485 asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
486 asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
487 unsigned long nr_segs, unsigned int flags);
488 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
489 int fd_out, loff_t __user *off_out,
490 size_t len, unsigned int flags);
491 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
492 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
493 int bufsiz);
494 asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
495 struct stat __user *statbuf, int flag);
496 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
497 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
498 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
499 asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
500 struct stat64 __user *statbuf, int flag);
501 #endif
502 asmlinkage long sys_sync(void);
503 asmlinkage long sys_fsync(unsigned int fd);
504 asmlinkage long sys_fdatasync(unsigned int fd);
505 asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
506 loff_t offset, loff_t nbytes);
507 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
508 unsigned int flags);
509 asmlinkage long sys_timerfd_create(int clockid, int flags);
510 asmlinkage long sys_timerfd_settime(int ufd, int flags,
511 const struct __kernel_itimerspec __user *utmr,
512 struct __kernel_itimerspec __user *otmr);
513 asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
514 asmlinkage long sys_timerfd_gettime32(int ufd,
515 struct old_itimerspec32 __user *otmr);
516 asmlinkage long sys_timerfd_settime32(int ufd, int flags,
517 const struct old_itimerspec32 __user *utmr,
518 struct old_itimerspec32 __user *otmr);
519 asmlinkage long sys_utimensat(int dfd, const char __user *filename,
520 struct __kernel_timespec __user *utimes,
521 int flags);
522 asmlinkage long sys_utimensat_time32(unsigned int dfd,
523 const char __user *filename,
524 struct old_timespec32 __user *t, int flags);
525 asmlinkage long sys_acct(const char __user *name);
526 asmlinkage long sys_capget(cap_user_header_t header,
527 cap_user_data_t dataptr);
528 asmlinkage long sys_capset(cap_user_header_t header,
529 const cap_user_data_t data);
530 asmlinkage long sys_personality(unsigned int personality);
531 asmlinkage long sys_exit(int error_code);
532 asmlinkage long sys_exit_group(int error_code);
533 asmlinkage long sys_waitid(int which, pid_t pid,
534 struct siginfo __user *infop,
535 int options, struct rusage __user *ru);
536 asmlinkage long sys_set_tid_address(int __user *tidptr);
537 asmlinkage long sys_unshare(unsigned long unshare_flags);
538 asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
539 const struct __kernel_timespec __user *utime,
540 u32 __user *uaddr2, u32 val3);
541 asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val,
542 const struct old_timespec32 __user *utime,
543 u32 __user *uaddr2, u32 val3);
544 asmlinkage long sys_get_robust_list(int pid,
545 struct robust_list_head __user * __user *head_ptr,
546 size_t __user *len_ptr);
547 asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
548 size_t len);
549
550 asmlinkage long sys_futex_waitv(struct futex_waitv *waiters,
551 unsigned int nr_futexes, unsigned int flags,
552 struct __kernel_timespec __user *timeout, clockid_t clockid);
553 asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
554 struct __kernel_timespec __user *rmtp);
555 asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp,
556 struct old_timespec32 __user *rmtp);
557 asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value);
558 asmlinkage long sys_setitimer(int which,
559 struct __kernel_old_itimerval __user *value,
560 struct __kernel_old_itimerval __user *ovalue);
561 asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
562 struct kexec_segment __user *segments,
563 unsigned long flags);
564 asmlinkage long sys_init_module(void __user *umod, unsigned long len,
565 const char __user *uargs);
566 asmlinkage long sys_delete_module(const char __user *name_user,
567 unsigned int flags);
568 asmlinkage long sys_timer_create(clockid_t which_clock,
569 struct sigevent __user *timer_event_spec,
570 timer_t __user * created_timer_id);
571 asmlinkage long sys_timer_gettime(timer_t timer_id,
572 struct __kernel_itimerspec __user *setting);
573 asmlinkage long sys_timer_getoverrun(timer_t timer_id);
574 asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
575 const struct __kernel_itimerspec __user *new_setting,
576 struct __kernel_itimerspec __user *old_setting);
577 asmlinkage long sys_timer_delete(timer_t timer_id);
578 asmlinkage long sys_clock_settime(clockid_t which_clock,
579 const struct __kernel_timespec __user *tp);
580 asmlinkage long sys_clock_gettime(clockid_t which_clock,
581 struct __kernel_timespec __user *tp);
582 asmlinkage long sys_clock_getres(clockid_t which_clock,
583 struct __kernel_timespec __user *tp);
584 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
585 const struct __kernel_timespec __user *rqtp,
586 struct __kernel_timespec __user *rmtp);
587 asmlinkage long sys_timer_gettime32(timer_t timer_id,
588 struct old_itimerspec32 __user *setting);
589 asmlinkage long sys_timer_settime32(timer_t timer_id, int flags,
590 struct old_itimerspec32 __user *new,
591 struct old_itimerspec32 __user *old);
592 asmlinkage long sys_clock_settime32(clockid_t which_clock,
593 struct old_timespec32 __user *tp);
594 asmlinkage long sys_clock_gettime32(clockid_t which_clock,
595 struct old_timespec32 __user *tp);
596 asmlinkage long sys_clock_getres_time32(clockid_t which_clock,
597 struct old_timespec32 __user *tp);
598 asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags,
599 struct old_timespec32 __user *rqtp,
600 struct old_timespec32 __user *rmtp);
601 asmlinkage long sys_syslog(int type, char __user *buf, int len);
602 asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
603 unsigned long data);
604 asmlinkage long sys_sched_setparam(pid_t pid,
605 struct sched_param __user *param);
606 asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
607 struct sched_param __user *param);
608 asmlinkage long sys_sched_getscheduler(pid_t pid);
609 asmlinkage long sys_sched_getparam(pid_t pid,
610 struct sched_param __user *param);
611 asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
612 unsigned long __user *user_mask_ptr);
613 asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
614 unsigned long __user *user_mask_ptr);
615 asmlinkage long sys_sched_yield(void);
616 asmlinkage long sys_sched_get_priority_max(int policy);
617 asmlinkage long sys_sched_get_priority_min(int policy);
618 asmlinkage long sys_sched_rr_get_interval(pid_t pid,
619 struct __kernel_timespec __user *interval);
620 asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid,
621 struct old_timespec32 __user *interval);
622 asmlinkage long sys_restart_syscall(void);
623 asmlinkage long sys_kill(pid_t pid, int sig);
624 asmlinkage long sys_tkill(pid_t pid, int sig);
625 asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
626 asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
627 struct sigaltstack __user *uoss);
628 asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
629 #ifndef CONFIG_ODD_RT_SIGACTION
630 asmlinkage long sys_rt_sigaction(int,
631 const struct sigaction __user *,
632 struct sigaction __user *,
633 size_t);
634 #endif
635 asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
636 sigset_t __user *oset, size_t sigsetsize);
637 asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
638 asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
639 siginfo_t __user *uinfo,
640 const struct __kernel_timespec __user *uts,
641 size_t sigsetsize);
642 asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese,
643 siginfo_t __user *uinfo,
644 const struct old_timespec32 __user *uts,
645 size_t sigsetsize);
646 asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
647 asmlinkage long sys_setpriority(int which, int who, int niceval);
648 asmlinkage long sys_getpriority(int which, int who);
649 asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
650 void __user *arg);
651 asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
652 asmlinkage long sys_setgid(gid_t gid);
653 asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
654 asmlinkage long sys_setuid(uid_t uid);
655 asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
656 asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
657 asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
658 asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
659 asmlinkage long sys_setfsuid(uid_t uid);
660 asmlinkage long sys_setfsgid(gid_t gid);
661 asmlinkage long sys_times(struct tms __user *tbuf);
662 asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
663 asmlinkage long sys_getpgid(pid_t pid);
664 asmlinkage long sys_getsid(pid_t pid);
665 asmlinkage long sys_setsid(void);
666 asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
667 asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
668 asmlinkage long sys_newuname(struct new_utsname __user *name);
669 asmlinkage long sys_sethostname(char __user *name, int len);
670 asmlinkage long sys_setdomainname(char __user *name, int len);
671 asmlinkage long sys_getrlimit(unsigned int resource,
672 struct rlimit __user *rlim);
673 asmlinkage long sys_setrlimit(unsigned int resource,
674 struct rlimit __user *rlim);
675 asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
676 asmlinkage long sys_umask(int mask);
677 asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
678 unsigned long arg4, unsigned long arg5);
679 asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
680 asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv,
681 struct timezone __user *tz);
682 asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv,
683 struct timezone __user *tz);
684 asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p);
685 asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p);
686 asmlinkage long sys_getpid(void);
687 asmlinkage long sys_getppid(void);
688 asmlinkage long sys_getuid(void);
689 asmlinkage long sys_geteuid(void);
690 asmlinkage long sys_getgid(void);
691 asmlinkage long sys_getegid(void);
692 asmlinkage long sys_gettid(void);
693 asmlinkage long sys_sysinfo(struct sysinfo __user *info);
694 asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
695 asmlinkage long sys_mq_unlink(const char __user *name);
696 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);
697 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);
698 asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
699 asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
700 asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes,
701 char __user *u_msg_ptr,
702 unsigned int msg_len, unsigned int __user *u_msg_prio,
703 const struct old_timespec32 __user *u_abs_timeout);
704 asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes,
705 const char __user *u_msg_ptr,
706 unsigned int msg_len, unsigned int msg_prio,
707 const struct old_timespec32 __user *u_abs_timeout);
708 asmlinkage long sys_msgget(key_t key, int msgflg);
709 asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
710 asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
711 asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
712 size_t msgsz, long msgtyp, int msgflg);
713 asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
714 size_t msgsz, int msgflg);
715 asmlinkage long sys_semget(key_t key, int nsems, int semflg);
716 asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
717 asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
718 asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
719 unsigned nsops,
720 const struct __kernel_timespec __user *timeout);
721 asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops,
722 unsigned nsops,
723 const struct old_timespec32 __user *timeout);
724 asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
725 unsigned nsops);
726 asmlinkage long sys_shmget(key_t key, size_t size, int flag);
727 asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
728 asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
729 asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
730 asmlinkage long sys_shmdt(char __user *shmaddr);
731 asmlinkage long sys_socket(int, int, int);
732 asmlinkage long sys_socketpair(int, int, int, int __user *);
733 asmlinkage long sys_bind(int, struct sockaddr __user *, int);
734 asmlinkage long sys_listen(int, int);
735 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
736 asmlinkage long sys_connect(int, struct sockaddr __user *, int);
737 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
738 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
739 asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
740 struct sockaddr __user *, int);
741 asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
742 struct sockaddr __user *, int __user *);
743 asmlinkage long sys_setsockopt(int fd, int level, int optname,
744 char __user *optval, int optlen);
745 asmlinkage long sys_getsockopt(int fd, int level, int optname,
746 char __user *optval, int __user *optlen);
747 asmlinkage long sys_shutdown(int, int);
748 asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
749 asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
750 asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
751 asmlinkage long sys_brk(unsigned long brk);
752 asmlinkage long sys_munmap(unsigned long addr, size_t len);
753 asmlinkage long sys_mremap(unsigned long addr,
754 unsigned long old_len, unsigned long new_len,
755 unsigned long flags, unsigned long new_addr);
756 asmlinkage long sys_add_key(const char __user *_type,
757 const char __user *_description,
758 const void __user *_payload,
759 size_t plen,
760 key_serial_t destringid);
761 asmlinkage long sys_request_key(const char __user *_type,
762 const char __user *_description,
763 const char __user *_callout_info,
764 key_serial_t destringid);
765 asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
766 unsigned long arg4, unsigned long arg5);
767 #ifdef CONFIG_CLONE_BACKWARDS
768 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
769 int __user *);
770 #else
771 #ifdef CONFIG_CLONE_BACKWARDS3
772 asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
773 int __user *, unsigned long);
774 #else
775 asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
776 int __user *, unsigned long);
777 #endif
778 #endif
779
780 asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size);
781
782 asmlinkage long sys_execve(const char __user *filename,
783 const char __user *const __user *argv,
784 const char __user *const __user *envp);
785 asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
786
787 /* CONFIG_MMU only */
788 asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
789 asmlinkage long sys_swapoff(const char __user *specialfile);
790 asmlinkage long sys_mprotect(unsigned long start, size_t len,
791 unsigned long prot);
792 asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
793 asmlinkage long sys_mlock(unsigned long start, size_t len);
794 asmlinkage long sys_munlock(unsigned long start, size_t len);
795 asmlinkage long sys_mlockall(int flags);
796 asmlinkage long sys_munlockall(void);
797 asmlinkage long sys_mincore(unsigned long start, size_t len,
798 unsigned char __user * vec);
799 asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
800 asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec,
801 size_t vlen, int behavior, unsigned int flags);
802 asmlinkage long sys_process_mrelease(int pidfd, unsigned int flags);
803 asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
804 unsigned long prot, unsigned long pgoff,
805 unsigned long flags);
806 asmlinkage long sys_mbind(unsigned long start, unsigned long len,
807 unsigned long mode,
808 const unsigned long __user *nmask,
809 unsigned long maxnode,
810 unsigned flags);
811 asmlinkage long sys_get_mempolicy(int __user *policy,
812 unsigned long __user *nmask,
813 unsigned long maxnode,
814 unsigned long addr, unsigned long flags);
815 asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
816 unsigned long maxnode);
817 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
818 const unsigned long __user *from,
819 const unsigned long __user *to);
820 asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
821 const void __user * __user *pages,
822 const int __user *nodes,
823 int __user *status,
824 int flags);
825 asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
826 siginfo_t __user *uinfo);
827 asmlinkage long sys_perf_event_open(
828 struct perf_event_attr __user *attr_uptr,
829 pid_t pid, int cpu, int group_fd, unsigned long flags);
830 asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
831 asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
832 unsigned int vlen, unsigned flags,
833 struct __kernel_timespec __user *timeout);
834 asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
835 unsigned int vlen, unsigned flags,
836 struct old_timespec32 __user *timeout);
837 asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
838 int options, struct rusage __user *ru);
839 asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
840 const struct rlimit64 __user *new_rlim,
841 struct rlimit64 __user *old_rlim);
842 asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
843 asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
844 u64 mask, int fd,
845 const char __user *pathname);
846 asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
847 struct file_handle __user *handle,
848 int __user *mnt_id, int flag);
849 asmlinkage long sys_open_by_handle_at(int mountdirfd,
850 struct file_handle __user *handle,
851 int flags);
852 asmlinkage long sys_clock_adjtime(clockid_t which_clock,
853 struct __kernel_timex __user *tx);
854 asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
855 struct old_timex32 __user *tx);
856 asmlinkage long sys_syncfs(int fd);
857 asmlinkage long sys_setns(int fd, int nstype);
858 asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
859 asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
860 unsigned int vlen, unsigned flags);
861 asmlinkage long sys_process_vm_readv(pid_t pid,
862 const struct iovec __user *lvec,
863 unsigned long liovcnt,
864 const struct iovec __user *rvec,
865 unsigned long riovcnt,
866 unsigned long flags);
867 asmlinkage long sys_process_vm_writev(pid_t pid,
868 const struct iovec __user *lvec,
869 unsigned long liovcnt,
870 const struct iovec __user *rvec,
871 unsigned long riovcnt,
872 unsigned long flags);
873 asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
874 unsigned long idx1, unsigned long idx2);
875 asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
876 asmlinkage long sys_sched_setattr(pid_t pid,
877 struct sched_attr __user *attr,
878 unsigned int flags);
879 asmlinkage long sys_sched_getattr(pid_t pid,
880 struct sched_attr __user *attr,
881 unsigned int size,
882 unsigned int flags);
883 asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
884 int newdfd, const char __user *newname,
885 unsigned int flags);
886 asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
887 void __user *uargs);
888 asmlinkage long sys_getrandom(char __user *buf, size_t count,
889 unsigned int flags);
890 asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
891 asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
892 asmlinkage long sys_execveat(int dfd, const char __user *filename,
893 const char __user *const __user *argv,
894 const char __user *const __user *envp, int flags);
895 asmlinkage long sys_userfaultfd(int flags);
896 asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id);
897 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
898 asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
899 int fd_out, loff_t __user *off_out,
900 size_t len, unsigned int flags);
901 asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
902 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
903 rwf_t flags);
904 asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
905 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
906 rwf_t flags);
907 asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
908 unsigned long prot, int pkey);
909 asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
910 asmlinkage long sys_pkey_free(int pkey);
911 asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
912 unsigned mask, struct statx __user *buffer);
913 asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
914 int flags, uint32_t sig);
915 asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
916 asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
917 int to_dfd, const char __user *to_path,
918 unsigned int ms_flags);
919 asmlinkage long sys_mount_setattr(int dfd, const char __user *path,
920 unsigned int flags,
921 struct mount_attr __user *uattr, size_t usize);
922 asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
923 asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
924 const void __user *value, int aux);
925 asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
926 asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
927 asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
928 siginfo_t __user *info,
929 unsigned int flags);
930 asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags);
931 asmlinkage long sys_landlock_create_ruleset(const struct landlock_ruleset_attr __user *attr,
932 size_t size, __u32 flags);
933 asmlinkage long sys_landlock_add_rule(int ruleset_fd, enum landlock_rule_type rule_type,
934 const void __user *rule_attr, __u32 flags);
935 asmlinkage long sys_landlock_restrict_self(int ruleset_fd, __u32 flags);
936 asmlinkage long sys_memfd_secret(unsigned int flags);
937 asmlinkage long sys_set_mempolicy_home_node(unsigned long start, unsigned long len,
938 unsigned long home_node,
939 unsigned long flags);
940 asmlinkage long sys_cachestat(unsigned int fd,
941 struct cachestat_range __user *cstat_range,
942 struct cachestat __user *cstat, unsigned int flags);
943 asmlinkage long sys_map_shadow_stack(unsigned long addr, unsigned long size, unsigned int flags);
944
945 /*
946 * Architecture-specific system calls
947 */
948
949 /* x86 */
950 asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
951
952 /* pciconfig: alpha, arm, arm64, ia64, sparc */
953 asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
954 unsigned long off, unsigned long len,
955 void __user *buf);
956 asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
957 unsigned long off, unsigned long len,
958 void __user *buf);
959 asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
960
961 /* powerpc */
962 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
963 __u32 __user *ustatus);
964 asmlinkage long sys_spu_create(const char __user *name,
965 unsigned int flags, umode_t mode, int fd);
966
967
968 /*
969 * Deprecated system calls which are still defined in
970 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
971 */
972
973 /* __ARCH_WANT_SYSCALL_NO_AT */
974 asmlinkage long sys_open(const char __user *filename,
975 int flags, umode_t mode);
976 asmlinkage long sys_link(const char __user *oldname,
977 const char __user *newname);
978 asmlinkage long sys_unlink(const char __user *pathname);
979 asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
980 unsigned dev);
981 asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
982 asmlinkage long sys_chown(const char __user *filename,
983 uid_t user, gid_t group);
984 asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
985 asmlinkage long sys_rmdir(const char __user *pathname);
986 asmlinkage long sys_lchown(const char __user *filename,
987 uid_t user, gid_t group);
988 asmlinkage long sys_access(const char __user *filename, int mode);
989 asmlinkage long sys_rename(const char __user *oldname,
990 const char __user *newname);
991 asmlinkage long sys_symlink(const char __user *old, const char __user *new);
992 #if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
993 asmlinkage long sys_stat64(const char __user *filename,
994 struct stat64 __user *statbuf);
995 asmlinkage long sys_lstat64(const char __user *filename,
996 struct stat64 __user *statbuf);
997 #endif
998
999 /* __ARCH_WANT_SYSCALL_NO_FLAGS */
1000 asmlinkage long sys_pipe(int __user *fildes);
1001 asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
1002 asmlinkage long sys_epoll_create(int size);
1003 asmlinkage long sys_inotify_init(void);
1004 asmlinkage long sys_eventfd(unsigned int count);
1005 asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
1006
1007 /* __ARCH_WANT_SYSCALL_OFF_T */
1008 asmlinkage long sys_sendfile(int out_fd, int in_fd,
1009 off_t __user *offset, size_t count);
1010 asmlinkage long sys_newstat(const char __user *filename,
1011 struct stat __user *statbuf);
1012 asmlinkage long sys_newlstat(const char __user *filename,
1013 struct stat __user *statbuf);
1014 asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
1015
1016 /* __ARCH_WANT_SYSCALL_DEPRECATED */
1017 asmlinkage long sys_alarm(unsigned int seconds);
1018 asmlinkage long sys_getpgrp(void);
1019 asmlinkage long sys_pause(void);
1020 asmlinkage long sys_time(__kernel_old_time_t __user *tloc);
1021 asmlinkage long sys_time32(old_time32_t __user *tloc);
1022 #ifdef __ARCH_WANT_SYS_UTIME
1023 asmlinkage long sys_utime(char __user *filename,
1024 struct utimbuf __user *times);
1025 asmlinkage long sys_utimes(char __user *filename,
1026 struct __kernel_old_timeval __user *utimes);
1027 asmlinkage long sys_futimesat(int dfd, const char __user *filename,
1028 struct __kernel_old_timeval __user *utimes);
1029 #endif
1030 asmlinkage long sys_futimesat_time32(unsigned int dfd,
1031 const char __user *filename,
1032 struct old_timeval32 __user *t);
1033 asmlinkage long sys_utime32(const char __user *filename,
1034 struct old_utimbuf32 __user *t);
1035 asmlinkage long sys_utimes_time32(const char __user *filename,
1036 struct old_timeval32 __user *t);
1037 asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
1038 asmlinkage long sys_getdents(unsigned int fd,
1039 struct linux_dirent __user *dirent,
1040 unsigned int count);
1041 asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
1042 fd_set __user *exp, struct __kernel_old_timeval __user *tvp);
1043 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
1044 int timeout);
1045 asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
1046 int maxevents, int timeout);
1047 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
1048 asmlinkage long sys_vfork(void);
1049 asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
1050 asmlinkage long sys_send(int, void __user *, size_t, unsigned);
1051 asmlinkage long sys_oldumount(char __user *name);
1052 asmlinkage long sys_uselib(const char __user *library);
1053 asmlinkage long sys_sysfs(int option,
1054 unsigned long arg1, unsigned long arg2);
1055 asmlinkage long sys_fork(void);
1056
1057 /* obsolete */
1058 asmlinkage long sys_stime(__kernel_old_time_t __user *tptr);
1059 asmlinkage long sys_stime32(old_time32_t __user *tptr);
1060
1061 /* obsolete */
1062 asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1063 asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1064 old_sigset_t __user *oset);
1065 #ifdef CONFIG_OLD_SIGSUSPEND
1066 asmlinkage long sys_sigsuspend(old_sigset_t mask);
1067 #endif
1068
1069 #ifdef CONFIG_OLD_SIGSUSPEND3
1070 asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1071 #endif
1072
1073 #ifdef CONFIG_OLD_SIGACTION
1074 asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1075 struct old_sigaction __user *);
1076 #endif
1077 asmlinkage long sys_sgetmask(void);
1078 asmlinkage long sys_ssetmask(int newmask);
1079 asmlinkage long sys_signal(int sig, __sighandler_t handler);
1080
1081 /* obsolete */
1082 asmlinkage long sys_nice(int increment);
1083
1084 /* obsolete */
1085 asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1086 unsigned long cmdline_len,
1087 const char __user *cmdline_ptr,
1088 unsigned long flags);
1089
1090 /* obsolete */
1091 asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1092
1093 /* obsolete */
1094 #ifdef CONFIG_HAVE_UID16
1095 asmlinkage long sys_chown16(const char __user *filename,
1096 old_uid_t user, old_gid_t group);
1097 asmlinkage long sys_lchown16(const char __user *filename,
1098 old_uid_t user, old_gid_t group);
1099 asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1100 asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1101 asmlinkage long sys_setgid16(old_gid_t gid);
1102 asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1103 asmlinkage long sys_setuid16(old_uid_t uid);
1104 asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1105 asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1106 old_uid_t __user *euid, old_uid_t __user *suid);
1107 asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1108 asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1109 old_gid_t __user *egid, old_gid_t __user *sgid);
1110 asmlinkage long sys_setfsuid16(old_uid_t uid);
1111 asmlinkage long sys_setfsgid16(old_gid_t gid);
1112 asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1113 asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1114 asmlinkage long sys_getuid16(void);
1115 asmlinkage long sys_geteuid16(void);
1116 asmlinkage long sys_getgid16(void);
1117 asmlinkage long sys_getegid16(void);
1118 #endif
1119
1120 /* obsolete */
1121 asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1122
1123 /* obsolete */
1124 asmlinkage long sys_stat(const char __user *filename,
1125 struct __old_kernel_stat __user *statbuf);
1126 asmlinkage long sys_lstat(const char __user *filename,
1127 struct __old_kernel_stat __user *statbuf);
1128 asmlinkage long sys_fstat(unsigned int fd,
1129 struct __old_kernel_stat __user *statbuf);
1130 asmlinkage long sys_readlink(const char __user *path,
1131 char __user *buf, int bufsiz);
1132
1133 /* obsolete */
1134 asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1135
1136 /* obsolete */
1137 asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1138
1139 /* obsolete */
1140 asmlinkage long sys_gethostname(char __user *name, int len);
1141 asmlinkage long sys_uname(struct old_utsname __user *);
1142 asmlinkage long sys_olduname(struct oldold_utsname __user *);
1143 #ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1144 asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1145 #endif
1146
1147 /* obsolete */
1148 asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1149 unsigned long third, void __user *ptr, long fifth);
1150
1151 /* obsolete */
1152 asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1153 unsigned long prot, unsigned long flags,
1154 unsigned long fd, unsigned long pgoff);
1155 asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1156
1157
1158 /*
1159 * Not a real system call, but a placeholder for syscalls which are
1160 * not implemented -- see kernel/sys_ni.c
1161 */
1162 asmlinkage long sys_ni_syscall(void);
1163
1164 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1165
1166 asmlinkage long sys_ni_posix_timers(void);
1167
1168 /*
1169 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1170 * Instead, use one of the functions which work equivalently, such as
1171 * the ksys_xyzyyz() functions prototyped below.
1172 */
1173 ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1174 int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1175 ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1176 void ksys_sync(void);
1177 int ksys_unshare(unsigned long unshare_flags);
1178 int ksys_setsid(void);
1179 int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1180 unsigned int flags);
1181 ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1182 loff_t pos);
1183 ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1184 size_t count, loff_t pos);
1185 int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1186 #ifdef CONFIG_ADVISE_SYSCALLS
1187 int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1188 #else
ksys_fadvise64_64(int fd,loff_t offset,loff_t len,int advice)1189 static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1190 int advice)
1191 {
1192 return -EINVAL;
1193 }
1194 #endif
1195 unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1196 unsigned long prot, unsigned long flags,
1197 unsigned long fd, unsigned long pgoff);
1198 ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1199 int ksys_ipc(unsigned int call, int first, unsigned long second,
1200 unsigned long third, void __user * ptr, long fifth);
1201 int compat_ksys_ipc(u32 call, int first, int second,
1202 u32 third, u32 ptr, u32 fifth);
1203
1204 /*
1205 * The following kernel syscall equivalents are just wrappers to fs-internal
1206 * functions. Therefore, provide stubs to be inlined at the callsites.
1207 */
1208 extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1209 gid_t group, int flag);
1210
ksys_chown(const char __user * filename,uid_t user,gid_t group)1211 static inline long ksys_chown(const char __user *filename, uid_t user,
1212 gid_t group)
1213 {
1214 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1215 }
1216
ksys_lchown(const char __user * filename,uid_t user,gid_t group)1217 static inline long ksys_lchown(const char __user *filename, uid_t user,
1218 gid_t group)
1219 {
1220 return do_fchownat(AT_FDCWD, filename, user, group,
1221 AT_SYMLINK_NOFOLLOW);
1222 }
1223
1224 extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1225
ksys_ftruncate(unsigned int fd,loff_t length)1226 static inline long ksys_ftruncate(unsigned int fd, loff_t length)
1227 {
1228 return do_sys_ftruncate(fd, length, 1);
1229 }
1230
1231 extern long do_sys_truncate(const char __user *pathname, loff_t length);
1232
ksys_truncate(const char __user * pathname,loff_t length)1233 static inline long ksys_truncate(const char __user *pathname, loff_t length)
1234 {
1235 return do_sys_truncate(pathname, length);
1236 }
1237
ksys_personality(unsigned int personality)1238 static inline unsigned int ksys_personality(unsigned int personality)
1239 {
1240 unsigned int old = current->personality;
1241
1242 if (personality != 0xffffffff)
1243 set_personality(personality);
1244
1245 return old;
1246 }
1247
1248 /* for __ARCH_WANT_SYS_IPC */
1249 long ksys_semtimedop(int semid, struct sembuf __user *tsops,
1250 unsigned int nsops,
1251 const struct __kernel_timespec __user *timeout);
1252 long ksys_semget(key_t key, int nsems, int semflg);
1253 long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
1254 long ksys_msgget(key_t key, int msgflg);
1255 long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
1256 long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1257 long msgtyp, int msgflg);
1258 long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1259 int msgflg);
1260 long ksys_shmget(key_t key, size_t size, int shmflg);
1261 long ksys_shmdt(char __user *shmaddr);
1262 long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
1263 long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems,
1264 unsigned int nsops,
1265 const struct old_timespec32 __user *timeout);
1266 long __do_semtimedop(int semid, struct sembuf *tsems, unsigned int nsops,
1267 const struct timespec64 *timeout,
1268 struct ipc_namespace *ns);
1269
1270 int __sys_getsockopt(int fd, int level, int optname, char __user *optval,
1271 int __user *optlen);
1272 int __sys_setsockopt(int fd, int level, int optname, char __user *optval,
1273 int optlen);
1274 #endif
1275