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
12struct __aio_sigset;
13struct epoll_event;
14struct iattr;
15struct inode;
16struct iocb;
17struct io_event;
18struct iovec;
19struct __kernel_old_itimerval;
20struct kexec_segment;
21struct linux_dirent;
22struct linux_dirent64;
23struct list_head;
24struct mmap_arg_struct;
25struct msgbuf;
26struct user_msghdr;
27struct mmsghdr;
28struct msqid_ds;
29struct new_utsname;
30struct nfsctl_arg;
31struct __old_kernel_stat;
32struct oldold_utsname;
33struct old_utsname;
34struct pollfd;
35struct rlimit;
36struct rlimit64;
37struct rusage;
38struct sched_param;
39struct sched_attr;
40struct sel_arg_struct;
41struct semaphore;
42struct sembuf;
43struct shmid_ds;
44struct sockaddr;
45struct stat;
46struct stat64;
47struct statfs;
48struct statfs64;
49struct statx;
50struct sysinfo;
51struct timespec;
52struct __kernel_old_timeval;
53struct __kernel_timex;
54struct timezone;
55struct tms;
56struct utimbuf;
57struct mq_attr;
58struct compat_stat;
59struct old_timeval32;
60struct robust_list_head;
61struct futex_waitv;
62struct getcpu_cache;
63struct old_linux_dirent;
64struct perf_event_attr;
65struct file_handle;
66struct sigaltstack;
67struct rseq;
68union bpf_attr;
69struct io_uring_params;
70struct clone_args;
71struct open_how;
72struct mount_attr;
73struct landlock_ruleset_attr;
74enum landlock_rule_type;
75
76#include <linux/types.h>
77#include <linux/aio_abi.h>
78#include <linux/capability.h>
79#include <linux/signal.h>
80#include <linux/list.h>
81#include <linux/bug.h>
82#include <linux/sem.h>
83#include <asm/siginfo.h>
84#include <linux/unistd.h>
85#include <linux/quota.h>
86#include <linux/key.h>
87#include <linux/personality.h>
88#include <trace/syscall.h>
89
90#ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
91/*
92 * It may be useful for an architecture to override the definitions of the
93 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
94 * different calling convention for syscalls. To allow for that, the prototypes
95 * for the sys_*() functions below will *not* be included if
96 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
97 */
98#include <asm/syscall_wrapper.h>
99#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
100
101/*
102 * __MAP - apply a macro to syscall arguments
103 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
104 * m(t1, a1), m(t2, a2), ..., m(tn, an)
105 * The first argument must be equal to the amount of type/name
106 * pairs given. Note that this list of pairs (i.e. the arguments
107 * of __MAP starting at the third one) is in the same format as
108 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
109 */
110#define __MAP0(m,...)
111#define __MAP1(m,t,a,...) m(t,a)
112#define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
113#define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
114#define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
115#define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
116#define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
117#define __MAP(n,...) __MAP##n(__VA_ARGS__)
118
119#define __SC_DECL(t, a) t a
120#define __TYPE_AS(t, v) __same_type((__force t)0, v)
121#define __TYPE_IS_L(t) (__TYPE_AS(t, 0L))
122#define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
123#define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
124#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
125#define __SC_CAST(t, a) (__force t) a
126#define __SC_ARGS(t, a) a
127#define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
128
129#ifdef CONFIG_FTRACE_SYSCALLS
130#define __SC_STR_ADECL(t, a) #a
131#define __SC_STR_TDECL(t, a) #t
132
133extern struct trace_event_class event_class_syscall_enter;
134extern struct trace_event_class event_class_syscall_exit;
135extern struct trace_event_functions enter_syscall_print_funcs;
136extern struct trace_event_functions exit_syscall_print_funcs;
137
138#define SYSCALL_TRACE_ENTER_EVENT(sname) \
139 static struct syscall_metadata __syscall_meta_##sname; \
140 static struct trace_event_call __used \
141 event_enter_##sname = { \
142 .class = &event_class_syscall_enter, \
143 { \
144 .name = "sys_enter"#sname, \
145 }, \
146 .event.funcs = &enter_syscall_print_funcs, \
147 .data = (void *)&__syscall_meta_##sname,\
148 .flags = TRACE_EVENT_FL_CAP_ANY, \
149 }; \
150 static struct trace_event_call __used \
151 __section("_ftrace_events") \
152 *__event_enter_##sname = &event_enter_##sname;
153
154#define SYSCALL_TRACE_EXIT_EVENT(sname) \
155 static struct syscall_metadata __syscall_meta_##sname; \
156 static struct trace_event_call __used \
157 event_exit_##sname = { \
158 .class = &event_class_syscall_exit, \
159 { \
160 .name = "sys_exit"#sname, \
161 }, \
162 .event.funcs = &exit_syscall_print_funcs, \
163 .data = (void *)&__syscall_meta_##sname,\
164 .flags = TRACE_EVENT_FL_CAP_ANY, \
165 }; \
166 static struct trace_event_call __used \
167 __section("_ftrace_events") \
168 *__event_exit_##sname = &event_exit_##sname;
169
170#define SYSCALL_METADATA(sname, nb, ...) \
171 static const char *types_##sname[] = { \
172 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
173 }; \
174 static const char *args_##sname[] = { \
175 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
176 }; \
177 SYSCALL_TRACE_ENTER_EVENT(sname); \
178 SYSCALL_TRACE_EXIT_EVENT(sname); \
179 static struct syscall_metadata __used \
180 __syscall_meta_##sname = { \
181 .name = "sys"#sname, \
182 .syscall_nr = -1, /* Filled in at boot */ \
183 .nb_args = nb, \
184 .types = nb ? types_##sname : NULL, \
185 .args = nb ? args_##sname : NULL, \
186 .enter_event = &event_enter_##sname, \
187 .exit_event = &event_exit_##sname, \
188 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
189 }; \
190 static struct syscall_metadata __used \
191 __section("__syscalls_metadata") \
192 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
193
194static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
195{
196 return tp_event->class == &event_class_syscall_enter ||
197 tp_event->class == &event_class_syscall_exit;
198}
199
200#else
201#define SYSCALL_METADATA(sname, nb, ...)
202
203static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
204{
205 return 0;
206}
207#endif
208
209#ifndef SYSCALL_DEFINE0
210#define SYSCALL_DEFINE0(sname) \
211 SYSCALL_METADATA(_##sname, 0); \
212 asmlinkage long sys_##sname(void); \
213 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
214 asmlinkage long sys_##sname(void)
215#endif /* SYSCALL_DEFINE0 */
216
217#define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
218#define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
219#define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
220#define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
221#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
222#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
223
224#define SYSCALL_DEFINE_MAXARGS 6
225
226#define SYSCALL_DEFINEx(x, sname, ...) \
227 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
228 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
229
230#define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
231
232/*
233 * The asmlinkage stub is aliased to a function named __se_sys_*() which
234 * sign-extends 32-bit ints to longs whenever needed. The actual work is
235 * done within __do_sys_*().
236 */
237#ifndef __SYSCALL_DEFINEx
238#define __SYSCALL_DEFINEx(x, name, ...) \
239 __diag_push(); \
240 __diag_ignore(GCC, 8, "-Wattribute-alias", \
241 "Type aliasing is used to sanitize syscall arguments");\
242 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
243 __attribute__((alias(__stringify(__se_sys##name)))); \
244 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
245 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
246 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
247 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
248 { \
249 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
250 __MAP(x,__SC_TEST,__VA_ARGS__); \
251 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
252 return ret; \
253 } \
254 __diag_pop(); \
255 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
256#endif /* __SYSCALL_DEFINEx */
257
258/* For split 64-bit arguments on 32-bit architectures */
259#ifdef __LITTLE_ENDIAN
260#define SC_ARG64(name) u32, name##_lo, u32, name##_hi
261#else
262#define SC_ARG64(name) u32, name##_hi, u32, name##_lo
263#endif
264#define SC_VAL64(type, name) ((type) name##_hi << 32 | name##_lo)
265
266#ifdef CONFIG_COMPAT
267#define SYSCALL32_DEFINE1 COMPAT_SYSCALL_DEFINE1
268#define SYSCALL32_DEFINE2 COMPAT_SYSCALL_DEFINE2
269#define SYSCALL32_DEFINE3 COMPAT_SYSCALL_DEFINE3
270#define SYSCALL32_DEFINE4 COMPAT_SYSCALL_DEFINE4
271#define SYSCALL32_DEFINE5 COMPAT_SYSCALL_DEFINE5
272#define SYSCALL32_DEFINE6 COMPAT_SYSCALL_DEFINE6
273#else
274#define SYSCALL32_DEFINE1 SYSCALL_DEFINE1
275#define SYSCALL32_DEFINE2 SYSCALL_DEFINE2
276#define SYSCALL32_DEFINE3 SYSCALL_DEFINE3
277#define SYSCALL32_DEFINE4 SYSCALL_DEFINE4
278#define SYSCALL32_DEFINE5 SYSCALL_DEFINE5
279#define SYSCALL32_DEFINE6 SYSCALL_DEFINE6
280#endif
281
282/*
283 * Called before coming back to user-mode. Returning to user-mode with an
284 * address limit different than USER_DS can allow to overwrite kernel memory.
285 */
286static inline void addr_limit_user_check(void)
287{
288#ifdef TIF_FSCHECK
289 if (!test_thread_flag(TIF_FSCHECK))
290 return;
291#endif
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
312asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
313asmlinkage long sys_io_destroy(aio_context_t ctx);
314asmlinkage long sys_io_submit(aio_context_t, long,
315 struct iocb __user * __user *);
316asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
317 struct io_event __user *result);
318asmlinkage 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);
323asmlinkage 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);
328asmlinkage 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);
334asmlinkage 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);
340asmlinkage long sys_io_uring_setup(u32 entries,
341 struct io_uring_params __user *p);
342asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit,
343 u32 min_complete, u32 flags,
344 const void __user *argp, size_t argsz);
345asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op,
346 void __user *arg, unsigned int nr_args);
347
348/* fs/xattr.c */
349asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
350 const void __user *value, size_t size, int flags);
351asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
352 const void __user *value, size_t size, int flags);
353asmlinkage long sys_fsetxattr(int fd, const char __user *name,
354 const void __user *value, size_t size, int flags);
355asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
356 void __user *value, size_t size);
357asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
358 void __user *value, size_t size);
359asmlinkage long sys_fgetxattr(int fd, const char __user *name,
360 void __user *value, size_t size);
361asmlinkage long sys_listxattr(const char __user *path, char __user *list,
362 size_t size);
363asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
364 size_t size);
365asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
366asmlinkage long sys_removexattr(const char __user *path,
367 const char __user *name);
368asmlinkage long sys_lremovexattr(const char __user *path,
369 const char __user *name);
370asmlinkage long sys_fremovexattr(int fd, const char __user *name);
371
372/* fs/dcache.c */
373asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
374
375/* fs/cookies.c */
376asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len);
377
378/* fs/eventfd.c */
379asmlinkage long sys_eventfd2(unsigned int count, int flags);
380
381/* fs/eventpoll.c */
382asmlinkage long sys_epoll_create1(int flags);
383asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
384 struct epoll_event __user *event);
385asmlinkage 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);
389asmlinkage long sys_epoll_pwait2(int epfd, struct epoll_event __user *events,
390 int maxevents,
391 const struct __kernel_timespec __user *timeout,
392 const sigset_t __user *sigmask,
393 size_t sigsetsize);
394
395/* fs/fcntl.c */
396asmlinkage long sys_dup(unsigned int fildes);
397asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
398asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
399#if BITS_PER_LONG == 32
400asmlinkage long sys_fcntl64(unsigned int fd,
401 unsigned int cmd, unsigned long arg);
402#endif
403
404/* fs/inotify_user.c */
405asmlinkage long sys_inotify_init1(int flags);
406asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
407 u32 mask);
408asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
409
410/* fs/ioctl.c */
411asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
412 unsigned long arg);
413
414/* fs/ioprio.c */
415asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
416asmlinkage long sys_ioprio_get(int which, int who);
417
418/* fs/locks.c */
419asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
420
421/* fs/namei.c */
422asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
423 unsigned dev);
424asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
425asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
426asmlinkage long sys_symlinkat(const char __user * oldname,
427 int newdfd, const char __user * newname);
428asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
429 int newdfd, const char __user *newname, int flags);
430asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
431 int newdfd, const char __user * newname);
432
433/* fs/namespace.c */
434asmlinkage long sys_umount(char __user *name, int flags);
435asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
436 char __user *type, unsigned long flags,
437 void __user *data);
438asmlinkage long sys_pivot_root(const char __user *new_root,
439 const char __user *put_old);
440
441/* fs/nfsctl.c */
442
443/* fs/open.c */
444asmlinkage long sys_statfs(const char __user * path,
445 struct statfs __user *buf);
446asmlinkage long sys_statfs64(const char __user *path, size_t sz,
447 struct statfs64 __user *buf);
448asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
449asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
450 struct statfs64 __user *buf);
451asmlinkage long sys_truncate(const char __user *path, long length);
452asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
453#if BITS_PER_LONG == 32
454asmlinkage long sys_truncate64(const char __user *path, loff_t length);
455asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
456#endif
457asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
458asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
459asmlinkage long sys_faccessat2(int dfd, const char __user *filename, int mode,
460 int flags);
461asmlinkage long sys_chdir(const char __user *filename);
462asmlinkage long sys_fchdir(unsigned int fd);
463asmlinkage long sys_chroot(const char __user *filename);
464asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
465asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
466 umode_t mode);
467asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
468 gid_t group, int flag);
469asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
470asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
471 umode_t mode);
472asmlinkage long sys_openat2(int dfd, const char __user *filename,
473 struct open_how *how, size_t size);
474asmlinkage long sys_close(unsigned int fd);
475asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd,
476 unsigned int flags);
477asmlinkage long sys_vhangup(void);
478
479/* fs/pipe.c */
480asmlinkage long sys_pipe2(int __user *fildes, int flags);
481
482/* fs/quota.c */
483asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
484 qid_t id, void __user *addr);
485asmlinkage long sys_quotactl_fd(unsigned int fd, unsigned int cmd, qid_t id,
486 void __user *addr);
487
488/* fs/readdir.c */
489asmlinkage long sys_getdents64(unsigned int fd,
490 struct linux_dirent64 __user *dirent,
491 unsigned int count);
492
493/* fs/read_write.c */
494asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
495 unsigned long offset_low, loff_t __user *result,
496 unsigned int whence);
497asmlinkage long sys_lseek(unsigned int fd, off_t offset,
498 unsigned int whence);
499asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
500asmlinkage long sys_write(unsigned int fd, const char __user *buf,
501 size_t count);
502asmlinkage long sys_readv(unsigned long fd,
503 const struct iovec __user *vec,
504 unsigned long vlen);
505asmlinkage long sys_writev(unsigned long fd,
506 const struct iovec __user *vec,
507 unsigned long vlen);
508asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
509 size_t count, loff_t pos);
510asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
511 size_t count, loff_t pos);
512asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
513 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
514asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
515 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
516
517/* fs/sendfile.c */
518asmlinkage long sys_sendfile64(int out_fd, int in_fd,
519 loff_t __user *offset, size_t count);
520
521/* fs/select.c */
522asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
523 fd_set __user *, struct __kernel_timespec __user *,
524 void __user *);
525asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *,
526 fd_set __user *, struct old_timespec32 __user *,
527 void __user *);
528asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
529 struct __kernel_timespec __user *, const sigset_t __user *,
530 size_t);
531asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int,
532 struct old_timespec32 __user *, const sigset_t __user *,
533 size_t);
534
535/* fs/signalfd.c */
536asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
537
538/* fs/splice.c */
539asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
540 unsigned long nr_segs, unsigned int flags);
541asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
542 int fd_out, loff_t __user *off_out,
543 size_t len, unsigned int flags);
544asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
545
546/* fs/stat.c */
547asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
548 int bufsiz);
549asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
550 struct stat __user *statbuf, int flag);
551asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
552#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
553asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
554asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
555 struct stat64 __user *statbuf, int flag);
556#endif
557
558/* fs/sync.c */
559asmlinkage long sys_sync(void);
560asmlinkage long sys_fsync(unsigned int fd);
561asmlinkage long sys_fdatasync(unsigned int fd);
562asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
563 loff_t offset, loff_t nbytes);
564asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
565 unsigned int flags);
566
567/* fs/timerfd.c */
568asmlinkage long sys_timerfd_create(int clockid, int flags);
569asmlinkage long sys_timerfd_settime(int ufd, int flags,
570 const struct __kernel_itimerspec __user *utmr,
571 struct __kernel_itimerspec __user *otmr);
572asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
573asmlinkage long sys_timerfd_gettime32(int ufd,
574 struct old_itimerspec32 __user *otmr);
575asmlinkage long sys_timerfd_settime32(int ufd, int flags,
576 const struct old_itimerspec32 __user *utmr,
577 struct old_itimerspec32 __user *otmr);
578
579/* fs/utimes.c */
580asmlinkage long sys_utimensat(int dfd, const char __user *filename,
581 struct __kernel_timespec __user *utimes,
582 int flags);
583asmlinkage long sys_utimensat_time32(unsigned int dfd,
584 const char __user *filename,
585 struct old_timespec32 __user *t, int flags);
586
587/* kernel/acct.c */
588asmlinkage long sys_acct(const char __user *name);
589
590/* kernel/capability.c */
591asmlinkage long sys_capget(cap_user_header_t header,
592 cap_user_data_t dataptr);
593asmlinkage long sys_capset(cap_user_header_t header,
594 const cap_user_data_t data);
595
596/* kernel/exec_domain.c */
597asmlinkage long sys_personality(unsigned int personality);
598
599/* kernel/exit.c */
600asmlinkage long sys_exit(int error_code);
601asmlinkage long sys_exit_group(int error_code);
602asmlinkage long sys_waitid(int which, pid_t pid,
603 struct siginfo __user *infop,
604 int options, struct rusage __user *ru);
605
606/* kernel/fork.c */
607asmlinkage long sys_set_tid_address(int __user *tidptr);
608asmlinkage long sys_unshare(unsigned long unshare_flags);
609
610/* kernel/futex/syscalls.c */
611asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
612 const struct __kernel_timespec __user *utime,
613 u32 __user *uaddr2, u32 val3);
614asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val,
615 const struct old_timespec32 __user *utime,
616 u32 __user *uaddr2, u32 val3);
617asmlinkage long sys_get_robust_list(int pid,
618 struct robust_list_head __user * __user *head_ptr,
619 size_t __user *len_ptr);
620asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
621 size_t len);
622
623asmlinkage long sys_futex_waitv(struct futex_waitv *waiters,
624 unsigned int nr_futexes, unsigned int flags,
625 struct __kernel_timespec __user *timeout, clockid_t clockid);
626
627/* kernel/hrtimer.c */
628asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
629 struct __kernel_timespec __user *rmtp);
630asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp,
631 struct old_timespec32 __user *rmtp);
632
633/* kernel/itimer.c */
634asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value);
635asmlinkage long sys_setitimer(int which,
636 struct __kernel_old_itimerval __user *value,
637 struct __kernel_old_itimerval __user *ovalue);
638
639/* kernel/kexec.c */
640asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
641 struct kexec_segment __user *segments,
642 unsigned long flags);
643
644/* kernel/module.c */
645asmlinkage long sys_init_module(void __user *umod, unsigned long len,
646 const char __user *uargs);
647asmlinkage long sys_delete_module(const char __user *name_user,
648 unsigned int flags);
649
650/* kernel/posix-timers.c */
651asmlinkage long sys_timer_create(clockid_t which_clock,
652 struct sigevent __user *timer_event_spec,
653 timer_t __user * created_timer_id);
654asmlinkage long sys_timer_gettime(timer_t timer_id,
655 struct __kernel_itimerspec __user *setting);
656asmlinkage long sys_timer_getoverrun(timer_t timer_id);
657asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
658 const struct __kernel_itimerspec __user *new_setting,
659 struct __kernel_itimerspec __user *old_setting);
660asmlinkage long sys_timer_delete(timer_t timer_id);
661asmlinkage long sys_clock_settime(clockid_t which_clock,
662 const struct __kernel_timespec __user *tp);
663asmlinkage long sys_clock_gettime(clockid_t which_clock,
664 struct __kernel_timespec __user *tp);
665asmlinkage long sys_clock_getres(clockid_t which_clock,
666 struct __kernel_timespec __user *tp);
667asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
668 const struct __kernel_timespec __user *rqtp,
669 struct __kernel_timespec __user *rmtp);
670asmlinkage long sys_timer_gettime32(timer_t timer_id,
671 struct old_itimerspec32 __user *setting);
672asmlinkage long sys_timer_settime32(timer_t timer_id, int flags,
673 struct old_itimerspec32 __user *new,
674 struct old_itimerspec32 __user *old);
675asmlinkage long sys_clock_settime32(clockid_t which_clock,
676 struct old_timespec32 __user *tp);
677asmlinkage long sys_clock_gettime32(clockid_t which_clock,
678 struct old_timespec32 __user *tp);
679asmlinkage long sys_clock_getres_time32(clockid_t which_clock,
680 struct old_timespec32 __user *tp);
681asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags,
682 struct old_timespec32 __user *rqtp,
683 struct old_timespec32 __user *rmtp);
684
685/* kernel/printk.c */
686asmlinkage long sys_syslog(int type, char __user *buf, int len);
687
688/* kernel/ptrace.c */
689asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
690 unsigned long data);
691/* kernel/sched/core.c */
692
693asmlinkage long sys_sched_setparam(pid_t pid,
694 struct sched_param __user *param);
695asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
696 struct sched_param __user *param);
697asmlinkage long sys_sched_getscheduler(pid_t pid);
698asmlinkage long sys_sched_getparam(pid_t pid,
699 struct sched_param __user *param);
700asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
701 unsigned long __user *user_mask_ptr);
702asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
703 unsigned long __user *user_mask_ptr);
704asmlinkage long sys_sched_yield(void);
705asmlinkage long sys_sched_get_priority_max(int policy);
706asmlinkage long sys_sched_get_priority_min(int policy);
707asmlinkage long sys_sched_rr_get_interval(pid_t pid,
708 struct __kernel_timespec __user *interval);
709asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid,
710 struct old_timespec32 __user *interval);
711
712/* kernel/signal.c */
713asmlinkage long sys_restart_syscall(void);
714asmlinkage long sys_kill(pid_t pid, int sig);
715asmlinkage long sys_tkill(pid_t pid, int sig);
716asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
717asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
718 struct sigaltstack __user *uoss);
719asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
720#ifndef CONFIG_ODD_RT_SIGACTION
721asmlinkage long sys_rt_sigaction(int,
722 const struct sigaction __user *,
723 struct sigaction __user *,
724 size_t);
725#endif
726asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
727 sigset_t __user *oset, size_t sigsetsize);
728asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
729asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
730 siginfo_t __user *uinfo,
731 const struct __kernel_timespec __user *uts,
732 size_t sigsetsize);
733asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese,
734 siginfo_t __user *uinfo,
735 const struct old_timespec32 __user *uts,
736 size_t sigsetsize);
737asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
738
739/* kernel/sys.c */
740asmlinkage long sys_setpriority(int which, int who, int niceval);
741asmlinkage long sys_getpriority(int which, int who);
742asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
743 void __user *arg);
744asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
745asmlinkage long sys_setgid(gid_t gid);
746asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
747asmlinkage long sys_setuid(uid_t uid);
748asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
749asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
750asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
751asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
752asmlinkage long sys_setfsuid(uid_t uid);
753asmlinkage long sys_setfsgid(gid_t gid);
754asmlinkage long sys_times(struct tms __user *tbuf);
755asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
756asmlinkage long sys_getpgid(pid_t pid);
757asmlinkage long sys_getsid(pid_t pid);
758asmlinkage long sys_setsid(void);
759asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
760asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
761asmlinkage long sys_newuname(struct new_utsname __user *name);
762asmlinkage long sys_sethostname(char __user *name, int len);
763asmlinkage long sys_setdomainname(char __user *name, int len);
764asmlinkage long sys_getrlimit(unsigned int resource,
765 struct rlimit __user *rlim);
766asmlinkage long sys_setrlimit(unsigned int resource,
767 struct rlimit __user *rlim);
768asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
769asmlinkage long sys_umask(int mask);
770asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
771 unsigned long arg4, unsigned long arg5);
772asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
773
774/* kernel/time.c */
775asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv,
776 struct timezone __user *tz);
777asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv,
778 struct timezone __user *tz);
779asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p);
780asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p);
781
782/* kernel/sys.c */
783asmlinkage long sys_getpid(void);
784asmlinkage long sys_getppid(void);
785asmlinkage long sys_getuid(void);
786asmlinkage long sys_geteuid(void);
787asmlinkage long sys_getgid(void);
788asmlinkage long sys_getegid(void);
789asmlinkage long sys_gettid(void);
790asmlinkage long sys_sysinfo(struct sysinfo __user *info);
791
792/* ipc/mqueue.c */
793asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
794asmlinkage long sys_mq_unlink(const char __user *name);
795asmlinkage 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);
796asmlinkage 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);
797asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
798asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
799asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes,
800 char __user *u_msg_ptr,
801 unsigned int msg_len, unsigned int __user *u_msg_prio,
802 const struct old_timespec32 __user *u_abs_timeout);
803asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes,
804 const char __user *u_msg_ptr,
805 unsigned int msg_len, unsigned int msg_prio,
806 const struct old_timespec32 __user *u_abs_timeout);
807
808/* ipc/msg.c */
809asmlinkage long sys_msgget(key_t key, int msgflg);
810asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
811asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
812asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
813 size_t msgsz, long msgtyp, int msgflg);
814asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
815 size_t msgsz, int msgflg);
816
817/* ipc/sem.c */
818asmlinkage long sys_semget(key_t key, int nsems, int semflg);
819asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
820asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
821asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
822 unsigned nsops,
823 const struct __kernel_timespec __user *timeout);
824asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops,
825 unsigned nsops,
826 const struct old_timespec32 __user *timeout);
827asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
828 unsigned nsops);
829
830/* ipc/shm.c */
831asmlinkage long sys_shmget(key_t key, size_t size, int flag);
832asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
833asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
834asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
835asmlinkage long sys_shmdt(char __user *shmaddr);
836
837/* net/socket.c */
838asmlinkage long sys_socket(int, int, int);
839asmlinkage long sys_socketpair(int, int, int, int __user *);
840asmlinkage long sys_bind(int, struct sockaddr __user *, int);
841asmlinkage long sys_listen(int, int);
842asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
843asmlinkage long sys_connect(int, struct sockaddr __user *, int);
844asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
845asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
846asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
847 struct sockaddr __user *, int);
848asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
849 struct sockaddr __user *, int __user *);
850asmlinkage long sys_setsockopt(int fd, int level, int optname,
851 char __user *optval, int optlen);
852asmlinkage long sys_getsockopt(int fd, int level, int optname,
853 char __user *optval, int __user *optlen);
854asmlinkage long sys_shutdown(int, int);
855asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
856asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
857
858/* mm/filemap.c */
859asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
860
861/* mm/nommu.c, also with MMU */
862asmlinkage long sys_brk(unsigned long brk);
863asmlinkage long sys_munmap(unsigned long addr, size_t len);
864asmlinkage long sys_mremap(unsigned long addr,
865 unsigned long old_len, unsigned long new_len,
866 unsigned long flags, unsigned long new_addr);
867
868/* security/keys/keyctl.c */
869asmlinkage long sys_add_key(const char __user *_type,
870 const char __user *_description,
871 const void __user *_payload,
872 size_t plen,
873 key_serial_t destringid);
874asmlinkage long sys_request_key(const char __user *_type,
875 const char __user *_description,
876 const char __user *_callout_info,
877 key_serial_t destringid);
878asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
879 unsigned long arg4, unsigned long arg5);
880
881/* arch/example/kernel/sys_example.c */
882#ifdef CONFIG_CLONE_BACKWARDS
883asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
884 int __user *);
885#else
886#ifdef CONFIG_CLONE_BACKWARDS3
887asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
888 int __user *, unsigned long);
889#else
890asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
891 int __user *, unsigned long);
892#endif
893#endif
894
895asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size);
896
897asmlinkage long sys_execve(const char __user *filename,
898 const char __user *const __user *argv,
899 const char __user *const __user *envp);
900
901/* mm/fadvise.c */
902asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
903
904/* mm/, CONFIG_MMU only */
905asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
906asmlinkage long sys_swapoff(const char __user *specialfile);
907asmlinkage long sys_mprotect(unsigned long start, size_t len,
908 unsigned long prot);
909asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
910asmlinkage long sys_mlock(unsigned long start, size_t len);
911asmlinkage long sys_munlock(unsigned long start, size_t len);
912asmlinkage long sys_mlockall(int flags);
913asmlinkage long sys_munlockall(void);
914asmlinkage long sys_mincore(unsigned long start, size_t len,
915 unsigned char __user * vec);
916asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
917asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec,
918 size_t vlen, int behavior, unsigned int flags);
919asmlinkage long sys_process_mrelease(int pidfd, unsigned int flags);
920asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
921 unsigned long prot, unsigned long pgoff,
922 unsigned long flags);
923asmlinkage long sys_mbind(unsigned long start, unsigned long len,
924 unsigned long mode,
925 const unsigned long __user *nmask,
926 unsigned long maxnode,
927 unsigned flags);
928asmlinkage long sys_get_mempolicy(int __user *policy,
929 unsigned long __user *nmask,
930 unsigned long maxnode,
931 unsigned long addr, unsigned long flags);
932asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
933 unsigned long maxnode);
934asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
935 const unsigned long __user *from,
936 const unsigned long __user *to);
937asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
938 const void __user * __user *pages,
939 const int __user *nodes,
940 int __user *status,
941 int flags);
942
943asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
944 siginfo_t __user *uinfo);
945asmlinkage long sys_perf_event_open(
946 struct perf_event_attr __user *attr_uptr,
947 pid_t pid, int cpu, int group_fd, unsigned long flags);
948asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
949asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
950 unsigned int vlen, unsigned flags,
951 struct __kernel_timespec __user *timeout);
952asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
953 unsigned int vlen, unsigned flags,
954 struct old_timespec32 __user *timeout);
955
956asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
957 int options, struct rusage __user *ru);
958asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
959 const struct rlimit64 __user *new_rlim,
960 struct rlimit64 __user *old_rlim);
961asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
962asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
963 u64 mask, int fd,
964 const char __user *pathname);
965asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
966 struct file_handle __user *handle,
967 int __user *mnt_id, int flag);
968asmlinkage long sys_open_by_handle_at(int mountdirfd,
969 struct file_handle __user *handle,
970 int flags);
971asmlinkage long sys_clock_adjtime(clockid_t which_clock,
972 struct __kernel_timex __user *tx);
973asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
974 struct old_timex32 __user *tx);
975asmlinkage long sys_syncfs(int fd);
976asmlinkage long sys_setns(int fd, int nstype);
977asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
978asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
979 unsigned int vlen, unsigned flags);
980asmlinkage long sys_process_vm_readv(pid_t pid,
981 const struct iovec __user *lvec,
982 unsigned long liovcnt,
983 const struct iovec __user *rvec,
984 unsigned long riovcnt,
985 unsigned long flags);
986asmlinkage long sys_process_vm_writev(pid_t pid,
987 const struct iovec __user *lvec,
988 unsigned long liovcnt,
989 const struct iovec __user *rvec,
990 unsigned long riovcnt,
991 unsigned long flags);
992asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
993 unsigned long idx1, unsigned long idx2);
994asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
995asmlinkage long sys_sched_setattr(pid_t pid,
996 struct sched_attr __user *attr,
997 unsigned int flags);
998asmlinkage long sys_sched_getattr(pid_t pid,
999 struct sched_attr __user *attr,
1000 unsigned int size,
1001 unsigned int flags);
1002asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
1003 int newdfd, const char __user *newname,
1004 unsigned int flags);
1005asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
1006 void __user *uargs);
1007asmlinkage long sys_getrandom(char __user *buf, size_t count,
1008 unsigned int flags);
1009asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
1010asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
1011asmlinkage long sys_execveat(int dfd, const char __user *filename,
1012 const char __user *const __user *argv,
1013 const char __user *const __user *envp, int flags);
1014asmlinkage long sys_userfaultfd(int flags);
1015asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id);
1016asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
1017asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
1018 int fd_out, loff_t __user *off_out,
1019 size_t len, unsigned int flags);
1020asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
1021 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
1022 rwf_t flags);
1023asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
1024 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
1025 rwf_t flags);
1026asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
1027 unsigned long prot, int pkey);
1028asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
1029asmlinkage long sys_pkey_free(int pkey);
1030asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
1031 unsigned mask, struct statx __user *buffer);
1032asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
1033 int flags, uint32_t sig);
1034asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
1035asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
1036 int to_dfd, const char __user *to_path,
1037 unsigned int ms_flags);
1038asmlinkage long sys_mount_setattr(int dfd, const char __user *path,
1039 unsigned int flags,
1040 struct mount_attr __user *uattr, size_t usize);
1041asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
1042asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
1043 const void __user *value, int aux);
1044asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
1045asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
1046asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
1047 siginfo_t __user *info,
1048 unsigned int flags);
1049asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags);
1050asmlinkage long sys_landlock_create_ruleset(const struct landlock_ruleset_attr __user *attr,
1051 size_t size, __u32 flags);
1052asmlinkage long sys_landlock_add_rule(int ruleset_fd, enum landlock_rule_type rule_type,
1053 const void __user *rule_attr, __u32 flags);
1054asmlinkage long sys_landlock_restrict_self(int ruleset_fd, __u32 flags);
1055asmlinkage long sys_memfd_secret(unsigned int flags);
1056asmlinkage long sys_set_mempolicy_home_node(unsigned long start, unsigned long len,
1057 unsigned long home_node,
1058 unsigned long flags);
1059
1060/*
1061 * Architecture-specific system calls
1062 */
1063
1064/* arch/x86/kernel/ioport.c */
1065asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
1066
1067/* pciconfig: alpha, arm, arm64, ia64, sparc */
1068asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
1069 unsigned long off, unsigned long len,
1070 void __user *buf);
1071asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
1072 unsigned long off, unsigned long len,
1073 void __user *buf);
1074asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
1075
1076/* powerpc */
1077asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
1078 __u32 __user *ustatus);
1079asmlinkage long sys_spu_create(const char __user *name,
1080 unsigned int flags, umode_t mode, int fd);
1081
1082
1083/*
1084 * Deprecated system calls which are still defined in
1085 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
1086 */
1087
1088/* __ARCH_WANT_SYSCALL_NO_AT */
1089asmlinkage long sys_open(const char __user *filename,
1090 int flags, umode_t mode);
1091asmlinkage long sys_link(const char __user *oldname,
1092 const char __user *newname);
1093asmlinkage long sys_unlink(const char __user *pathname);
1094asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
1095 unsigned dev);
1096asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
1097asmlinkage long sys_chown(const char __user *filename,
1098 uid_t user, gid_t group);
1099asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
1100asmlinkage long sys_rmdir(const char __user *pathname);
1101asmlinkage long sys_lchown(const char __user *filename,
1102 uid_t user, gid_t group);
1103asmlinkage long sys_access(const char __user *filename, int mode);
1104asmlinkage long sys_rename(const char __user *oldname,
1105 const char __user *newname);
1106asmlinkage long sys_symlink(const char __user *old, const char __user *new);
1107#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
1108asmlinkage long sys_stat64(const char __user *filename,
1109 struct stat64 __user *statbuf);
1110asmlinkage long sys_lstat64(const char __user *filename,
1111 struct stat64 __user *statbuf);
1112#endif
1113
1114/* __ARCH_WANT_SYSCALL_NO_FLAGS */
1115asmlinkage long sys_pipe(int __user *fildes);
1116asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
1117asmlinkage long sys_epoll_create(int size);
1118asmlinkage long sys_inotify_init(void);
1119asmlinkage long sys_eventfd(unsigned int count);
1120asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
1121
1122/* __ARCH_WANT_SYSCALL_OFF_T */
1123asmlinkage long sys_sendfile(int out_fd, int in_fd,
1124 off_t __user *offset, size_t count);
1125asmlinkage long sys_newstat(const char __user *filename,
1126 struct stat __user *statbuf);
1127asmlinkage long sys_newlstat(const char __user *filename,
1128 struct stat __user *statbuf);
1129asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
1130
1131/* __ARCH_WANT_SYSCALL_DEPRECATED */
1132asmlinkage long sys_alarm(unsigned int seconds);
1133asmlinkage long sys_getpgrp(void);
1134asmlinkage long sys_pause(void);
1135asmlinkage long sys_time(__kernel_old_time_t __user *tloc);
1136asmlinkage long sys_time32(old_time32_t __user *tloc);
1137#ifdef __ARCH_WANT_SYS_UTIME
1138asmlinkage long sys_utime(char __user *filename,
1139 struct utimbuf __user *times);
1140asmlinkage long sys_utimes(char __user *filename,
1141 struct __kernel_old_timeval __user *utimes);
1142asmlinkage long sys_futimesat(int dfd, const char __user *filename,
1143 struct __kernel_old_timeval __user *utimes);
1144#endif
1145asmlinkage long sys_futimesat_time32(unsigned int dfd,
1146 const char __user *filename,
1147 struct old_timeval32 __user *t);
1148asmlinkage long sys_utime32(const char __user *filename,
1149 struct old_utimbuf32 __user *t);
1150asmlinkage long sys_utimes_time32(const char __user *filename,
1151 struct old_timeval32 __user *t);
1152asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
1153asmlinkage long sys_getdents(unsigned int fd,
1154 struct linux_dirent __user *dirent,
1155 unsigned int count);
1156asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
1157 fd_set __user *exp, struct __kernel_old_timeval __user *tvp);
1158asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
1159 int timeout);
1160asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
1161 int maxevents, int timeout);
1162asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
1163asmlinkage long sys_vfork(void);
1164asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
1165asmlinkage long sys_send(int, void __user *, size_t, unsigned);
1166asmlinkage long sys_oldumount(char __user *name);
1167asmlinkage long sys_uselib(const char __user *library);
1168asmlinkage long sys_sysfs(int option,
1169 unsigned long arg1, unsigned long arg2);
1170asmlinkage long sys_fork(void);
1171
1172/* obsolete: kernel/time/time.c */
1173asmlinkage long sys_stime(__kernel_old_time_t __user *tptr);
1174asmlinkage long sys_stime32(old_time32_t __user *tptr);
1175
1176/* obsolete: kernel/signal.c */
1177asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1178asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1179 old_sigset_t __user *oset);
1180#ifdef CONFIG_OLD_SIGSUSPEND
1181asmlinkage long sys_sigsuspend(old_sigset_t mask);
1182#endif
1183
1184#ifdef CONFIG_OLD_SIGSUSPEND3
1185asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1186#endif
1187
1188#ifdef CONFIG_OLD_SIGACTION
1189asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1190 struct old_sigaction __user *);
1191#endif
1192asmlinkage long sys_sgetmask(void);
1193asmlinkage long sys_ssetmask(int newmask);
1194asmlinkage long sys_signal(int sig, __sighandler_t handler);
1195
1196/* obsolete: kernel/sched/core.c */
1197asmlinkage long sys_nice(int increment);
1198
1199/* obsolete: kernel/kexec_file.c */
1200asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1201 unsigned long cmdline_len,
1202 const char __user *cmdline_ptr,
1203 unsigned long flags);
1204
1205/* obsolete: kernel/exit.c */
1206asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1207
1208/* obsolete: kernel/uid16.c */
1209#ifdef CONFIG_HAVE_UID16
1210asmlinkage long sys_chown16(const char __user *filename,
1211 old_uid_t user, old_gid_t group);
1212asmlinkage long sys_lchown16(const char __user *filename,
1213 old_uid_t user, old_gid_t group);
1214asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1215asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1216asmlinkage long sys_setgid16(old_gid_t gid);
1217asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1218asmlinkage long sys_setuid16(old_uid_t uid);
1219asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1220asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1221 old_uid_t __user *euid, old_uid_t __user *suid);
1222asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1223asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1224 old_gid_t __user *egid, old_gid_t __user *sgid);
1225asmlinkage long sys_setfsuid16(old_uid_t uid);
1226asmlinkage long sys_setfsgid16(old_gid_t gid);
1227asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1228asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1229asmlinkage long sys_getuid16(void);
1230asmlinkage long sys_geteuid16(void);
1231asmlinkage long sys_getgid16(void);
1232asmlinkage long sys_getegid16(void);
1233#endif
1234
1235/* obsolete: net/socket.c */
1236asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1237
1238/* obsolete: fs/stat.c */
1239asmlinkage long sys_stat(const char __user *filename,
1240 struct __old_kernel_stat __user *statbuf);
1241asmlinkage long sys_lstat(const char __user *filename,
1242 struct __old_kernel_stat __user *statbuf);
1243asmlinkage long sys_fstat(unsigned int fd,
1244 struct __old_kernel_stat __user *statbuf);
1245asmlinkage long sys_readlink(const char __user *path,
1246 char __user *buf, int bufsiz);
1247
1248/* obsolete: fs/select.c */
1249asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1250
1251/* obsolete: fs/readdir.c */
1252asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1253
1254/* obsolete: kernel/sys.c */
1255asmlinkage long sys_gethostname(char __user *name, int len);
1256asmlinkage long sys_uname(struct old_utsname __user *);
1257asmlinkage long sys_olduname(struct oldold_utsname __user *);
1258#ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1259asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1260#endif
1261
1262/* obsolete: ipc */
1263asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1264 unsigned long third, void __user *ptr, long fifth);
1265
1266/* obsolete: mm/ */
1267asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1268 unsigned long prot, unsigned long flags,
1269 unsigned long fd, unsigned long pgoff);
1270asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1271
1272
1273/*
1274 * Not a real system call, but a placeholder for syscalls which are
1275 * not implemented -- see kernel/sys_ni.c
1276 */
1277asmlinkage long sys_ni_syscall(void);
1278
1279#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1280
1281
1282/*
1283 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1284 * Instead, use one of the functions which work equivalently, such as
1285 * the ksys_xyzyyz() functions prototyped below.
1286 */
1287ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1288int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1289ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1290void ksys_sync(void);
1291int ksys_unshare(unsigned long unshare_flags);
1292int ksys_setsid(void);
1293int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1294 unsigned int flags);
1295ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1296 loff_t pos);
1297ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1298 size_t count, loff_t pos);
1299int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1300#ifdef CONFIG_ADVISE_SYSCALLS
1301int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1302#else
1303static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1304 int advice)
1305{
1306 return -EINVAL;
1307}
1308#endif
1309unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1310 unsigned long prot, unsigned long flags,
1311 unsigned long fd, unsigned long pgoff);
1312ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1313int ksys_ipc(unsigned int call, int first, unsigned long second,
1314 unsigned long third, void __user * ptr, long fifth);
1315int compat_ksys_ipc(u32 call, int first, int second,
1316 u32 third, u32 ptr, u32 fifth);
1317
1318/*
1319 * The following kernel syscall equivalents are just wrappers to fs-internal
1320 * functions. Therefore, provide stubs to be inlined at the callsites.
1321 */
1322extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1323 gid_t group, int flag);
1324
1325static inline long ksys_chown(const char __user *filename, uid_t user,
1326 gid_t group)
1327{
1328 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1329}
1330
1331static inline long ksys_lchown(const char __user *filename, uid_t user,
1332 gid_t group)
1333{
1334 return do_fchownat(AT_FDCWD, filename, user, group,
1335 AT_SYMLINK_NOFOLLOW);
1336}
1337
1338extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1339
1340static inline long ksys_ftruncate(unsigned int fd, loff_t length)
1341{
1342 return do_sys_ftruncate(fd, length, 1);
1343}
1344
1345extern long do_sys_truncate(const char __user *pathname, loff_t length);
1346
1347static inline long ksys_truncate(const char __user *pathname, loff_t length)
1348{
1349 return do_sys_truncate(pathname, length);
1350}
1351
1352static inline unsigned int ksys_personality(unsigned int personality)
1353{
1354 unsigned int old = current->personality;
1355
1356 if (personality != 0xffffffff)
1357 set_personality(personality);
1358
1359 return old;
1360}
1361
1362/* for __ARCH_WANT_SYS_IPC */
1363long ksys_semtimedop(int semid, struct sembuf __user *tsops,
1364 unsigned int nsops,
1365 const struct __kernel_timespec __user *timeout);
1366long ksys_semget(key_t key, int nsems, int semflg);
1367long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
1368long ksys_msgget(key_t key, int msgflg);
1369long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
1370long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1371 long msgtyp, int msgflg);
1372long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1373 int msgflg);
1374long ksys_shmget(key_t key, size_t size, int shmflg);
1375long ksys_shmdt(char __user *shmaddr);
1376long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
1377long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems,
1378 unsigned int nsops,
1379 const struct old_timespec32 __user *timeout);
1380long __do_semtimedop(int semid, struct sembuf *tsems, unsigned int nsops,
1381 const struct timespec64 *timeout,
1382 struct ipc_namespace *ns);
1383
1384int __sys_getsockopt(int fd, int level, int optname, char __user *optval,
1385 int __user *optlen);
1386int __sys_setsockopt(int fd, int level, int optname, char __user *optval,
1387 int optlen);
1388#endif
1389

source code of linux/include/linux/syscalls.h