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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 itimerspec;
20struct itimerval;
21struct kexec_segment;
22struct linux_dirent;
23struct linux_dirent64;
24struct list_head;
25struct mmap_arg_struct;
26struct msgbuf;
27struct user_msghdr;
28struct mmsghdr;
29struct msqid_ds;
30struct new_utsname;
31struct nfsctl_arg;
32struct __old_kernel_stat;
33struct oldold_utsname;
34struct old_utsname;
35struct pollfd;
36struct rlimit;
37struct rlimit64;
38struct rusage;
39struct sched_param;
40struct sched_attr;
41struct sel_arg_struct;
42struct semaphore;
43struct sembuf;
44struct shmid_ds;
45struct sockaddr;
46struct stat;
47struct stat64;
48struct statfs;
49struct statfs64;
50struct statx;
51struct __sysctl_args;
52struct sysinfo;
53struct timespec;
54struct timeval;
55struct __kernel_timex;
56struct timezone;
57struct tms;
58struct utimbuf;
59struct mq_attr;
60struct compat_stat;
61struct old_timeval32;
62struct robust_list_head;
63struct getcpu_cache;
64struct old_linux_dirent;
65struct perf_event_attr;
66struct file_handle;
67struct sigaltstack;
68struct rseq;
69union bpf_attr;
70struct io_uring_params;
71struct clone_args;
72
73#include <linux/types.h>
74#include <linux/aio_abi.h>
75#include <linux/capability.h>
76#include <linux/signal.h>
77#include <linux/list.h>
78#include <linux/bug.h>
79#include <linux/sem.h>
80#include <asm/siginfo.h>
81#include <linux/unistd.h>
82#include <linux/quota.h>
83#include <linux/key.h>
84#include <linux/personality.h>
85#include <trace/syscall.h>
86
87#ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
88/*
89 * It may be useful for an architecture to override the definitions of the
90 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
91 * different calling convention for syscalls. To allow for that, the prototypes
92 * for the sys_*() functions below will *not* be included if
93 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
94 */
95#include <asm/syscall_wrapper.h>
96#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
97
98/*
99 * __MAP - apply a macro to syscall arguments
100 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
101 * m(t1, a1), m(t2, a2), ..., m(tn, an)
102 * The first argument must be equal to the amount of type/name
103 * pairs given. Note that this list of pairs (i.e. the arguments
104 * of __MAP starting at the third one) is in the same format as
105 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
106 */
107#define __MAP0(m,...)
108#define __MAP1(m,t,a,...) m(t,a)
109#define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
110#define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
111#define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
112#define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
113#define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
114#define __MAP(n,...) __MAP##n(__VA_ARGS__)
115
116#define __SC_DECL(t, a) t a
117#define __TYPE_AS(t, v) __same_type((__force t)0, v)
118#define __TYPE_IS_L(t) (__TYPE_AS(t, 0L))
119#define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
120#define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
121#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
122#define __SC_CAST(t, a) (__force t) a
123#define __SC_ARGS(t, a) a
124#define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
125
126#ifdef CONFIG_FTRACE_SYSCALLS
127#define __SC_STR_ADECL(t, a) #a
128#define __SC_STR_TDECL(t, a) #t
129
130extern struct trace_event_class event_class_syscall_enter;
131extern struct trace_event_class event_class_syscall_exit;
132extern struct trace_event_functions enter_syscall_print_funcs;
133extern struct trace_event_functions exit_syscall_print_funcs;
134
135#define SYSCALL_TRACE_ENTER_EVENT(sname) \
136 static struct syscall_metadata __syscall_meta_##sname; \
137 static struct trace_event_call __used \
138 event_enter_##sname = { \
139 .class = &event_class_syscall_enter, \
140 { \
141 .name = "sys_enter"#sname, \
142 }, \
143 .event.funcs = &enter_syscall_print_funcs, \
144 .data = (void *)&__syscall_meta_##sname,\
145 .flags = TRACE_EVENT_FL_CAP_ANY, \
146 }; \
147 static struct trace_event_call __used \
148 __attribute__((section("_ftrace_events"))) \
149 *__event_enter_##sname = &event_enter_##sname;
150
151#define SYSCALL_TRACE_EXIT_EVENT(sname) \
152 static struct syscall_metadata __syscall_meta_##sname; \
153 static struct trace_event_call __used \
154 event_exit_##sname = { \
155 .class = &event_class_syscall_exit, \
156 { \
157 .name = "sys_exit"#sname, \
158 }, \
159 .event.funcs = &exit_syscall_print_funcs, \
160 .data = (void *)&__syscall_meta_##sname,\
161 .flags = TRACE_EVENT_FL_CAP_ANY, \
162 }; \
163 static struct trace_event_call __used \
164 __attribute__((section("_ftrace_events"))) \
165 *__event_exit_##sname = &event_exit_##sname;
166
167#define SYSCALL_METADATA(sname, nb, ...) \
168 static const char *types_##sname[] = { \
169 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
170 }; \
171 static const char *args_##sname[] = { \
172 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
173 }; \
174 SYSCALL_TRACE_ENTER_EVENT(sname); \
175 SYSCALL_TRACE_EXIT_EVENT(sname); \
176 static struct syscall_metadata __used \
177 __syscall_meta_##sname = { \
178 .name = "sys"#sname, \
179 .syscall_nr = -1, /* Filled in at boot */ \
180 .nb_args = nb, \
181 .types = nb ? types_##sname : NULL, \
182 .args = nb ? args_##sname : NULL, \
183 .enter_event = &event_enter_##sname, \
184 .exit_event = &event_exit_##sname, \
185 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
186 }; \
187 static struct syscall_metadata __used \
188 __attribute__((section("__syscalls_metadata"))) \
189 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
190
191static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
192{
193 return tp_event->class == &event_class_syscall_enter ||
194 tp_event->class == &event_class_syscall_exit;
195}
196
197#else
198#define SYSCALL_METADATA(sname, nb, ...)
199
200static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
201{
202 return 0;
203}
204#endif
205
206#ifndef SYSCALL_DEFINE0
207#define SYSCALL_DEFINE0(sname) \
208 SYSCALL_METADATA(_##sname, 0); \
209 asmlinkage long sys_##sname(void); \
210 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
211 asmlinkage long sys_##sname(void)
212#endif /* SYSCALL_DEFINE0 */
213
214#define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
215#define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
216#define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
217#define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
218#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
219#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
220
221#define SYSCALL_DEFINE_MAXARGS 6
222
223#define SYSCALL_DEFINEx(x, sname, ...) \
224 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
225 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
226
227#define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
228
229/*
230 * The asmlinkage stub is aliased to a function named __se_sys_*() which
231 * sign-extends 32-bit ints to longs whenever needed. The actual work is
232 * done within __do_sys_*().
233 */
234#ifndef __SYSCALL_DEFINEx
235#define __SYSCALL_DEFINEx(x, name, ...) \
236 __diag_push(); \
237 __diag_ignore(GCC, 8, "-Wattribute-alias", \
238 "Type aliasing is used to sanitize syscall arguments");\
239 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
240 __attribute__((alias(__stringify(__se_sys##name)))); \
241 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
242 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
243 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
244 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
245 { \
246 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
247 __MAP(x,__SC_TEST,__VA_ARGS__); \
248 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
249 return ret; \
250 } \
251 __diag_pop(); \
252 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
253#endif /* __SYSCALL_DEFINEx */
254
255/*
256 * Called before coming back to user-mode. Returning to user-mode with an
257 * address limit different than USER_DS can allow to overwrite kernel memory.
258 */
259static inline void addr_limit_user_check(void)
260{
261#ifdef TIF_FSCHECK
262 if (!test_thread_flag(TIF_FSCHECK))
263 return;
264#endif
265
266 if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS),
267 "Invalid address limit on user-mode return"))
268 force_sig(SIGKILL);
269
270#ifdef TIF_FSCHECK
271 clear_thread_flag(TIF_FSCHECK);
272#endif
273}
274
275/*
276 * These syscall function prototypes are kept in the same order as
277 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
278 * followed by deprecated or obsolete system calls.
279 *
280 * Please note that these prototypes here are only provided for information
281 * purposes, for static analysis, and for linking from the syscall table.
282 * These functions should not be called elsewhere from kernel code.
283 *
284 * As the syscall calling convention may be different from the default
285 * for architectures overriding the syscall calling convention, do not
286 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
287 */
288#ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
289asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
290asmlinkage long sys_io_destroy(aio_context_t ctx);
291asmlinkage long sys_io_submit(aio_context_t, long,
292 struct iocb __user * __user *);
293asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
294 struct io_event __user *result);
295asmlinkage long sys_io_getevents(aio_context_t ctx_id,
296 long min_nr,
297 long nr,
298 struct io_event __user *events,
299 struct __kernel_timespec __user *timeout);
300asmlinkage long sys_io_getevents_time32(__u32 ctx_id,
301 __s32 min_nr,
302 __s32 nr,
303 struct io_event __user *events,
304 struct old_timespec32 __user *timeout);
305asmlinkage long sys_io_pgetevents(aio_context_t ctx_id,
306 long min_nr,
307 long nr,
308 struct io_event __user *events,
309 struct __kernel_timespec __user *timeout,
310 const struct __aio_sigset *sig);
311asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id,
312 long min_nr,
313 long nr,
314 struct io_event __user *events,
315 struct old_timespec32 __user *timeout,
316 const struct __aio_sigset *sig);
317asmlinkage long sys_io_uring_setup(u32 entries,
318 struct io_uring_params __user *p);
319asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit,
320 u32 min_complete, u32 flags,
321 const sigset_t __user *sig, size_t sigsz);
322asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op,
323 void __user *arg, unsigned int nr_args);
324
325/* fs/xattr.c */
326asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
327 const void __user *value, size_t size, int flags);
328asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
329 const void __user *value, size_t size, int flags);
330asmlinkage long sys_fsetxattr(int fd, const char __user *name,
331 const void __user *value, size_t size, int flags);
332asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
333 void __user *value, size_t size);
334asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
335 void __user *value, size_t size);
336asmlinkage long sys_fgetxattr(int fd, const char __user *name,
337 void __user *value, size_t size);
338asmlinkage long sys_listxattr(const char __user *path, char __user *list,
339 size_t size);
340asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
341 size_t size);
342asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
343asmlinkage long sys_removexattr(const char __user *path,
344 const char __user *name);
345asmlinkage long sys_lremovexattr(const char __user *path,
346 const char __user *name);
347asmlinkage long sys_fremovexattr(int fd, const char __user *name);
348
349/* fs/dcache.c */
350asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
351
352/* fs/cookies.c */
353asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len);
354
355/* fs/eventfd.c */
356asmlinkage long sys_eventfd2(unsigned int count, int flags);
357
358/* fs/eventpoll.c */
359asmlinkage long sys_epoll_create1(int flags);
360asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
361 struct epoll_event __user *event);
362asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
363 int maxevents, int timeout,
364 const sigset_t __user *sigmask,
365 size_t sigsetsize);
366
367/* fs/fcntl.c */
368asmlinkage long sys_dup(unsigned int fildes);
369asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
370asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
371#if BITS_PER_LONG == 32
372asmlinkage long sys_fcntl64(unsigned int fd,
373 unsigned int cmd, unsigned long arg);
374#endif
375
376/* fs/inotify_user.c */
377asmlinkage long sys_inotify_init1(int flags);
378asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
379 u32 mask);
380asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
381
382/* fs/ioctl.c */
383asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
384 unsigned long arg);
385
386/* fs/ioprio.c */
387asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
388asmlinkage long sys_ioprio_get(int which, int who);
389
390/* fs/locks.c */
391asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
392
393/* fs/namei.c */
394asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
395 unsigned dev);
396asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
397asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
398asmlinkage long sys_symlinkat(const char __user * oldname,
399 int newdfd, const char __user * newname);
400asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
401 int newdfd, const char __user *newname, int flags);
402asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
403 int newdfd, const char __user * newname);
404
405/* fs/namespace.c */
406asmlinkage long sys_umount(char __user *name, int flags);
407asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
408 char __user *type, unsigned long flags,
409 void __user *data);
410asmlinkage long sys_pivot_root(const char __user *new_root,
411 const char __user *put_old);
412
413/* fs/nfsctl.c */
414
415/* fs/open.c */
416asmlinkage long sys_statfs(const char __user * path,
417 struct statfs __user *buf);
418asmlinkage long sys_statfs64(const char __user *path, size_t sz,
419 struct statfs64 __user *buf);
420asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
421asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
422 struct statfs64 __user *buf);
423asmlinkage long sys_truncate(const char __user *path, long length);
424asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
425#if BITS_PER_LONG == 32
426asmlinkage long sys_truncate64(const char __user *path, loff_t length);
427asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
428#endif
429asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
430asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
431asmlinkage long sys_chdir(const char __user *filename);
432asmlinkage long sys_fchdir(unsigned int fd);
433asmlinkage long sys_chroot(const char __user *filename);
434asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
435asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
436 umode_t mode);
437asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
438 gid_t group, int flag);
439asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
440asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
441 umode_t mode);
442asmlinkage long sys_close(unsigned int fd);
443asmlinkage long sys_vhangup(void);
444
445/* fs/pipe.c */
446asmlinkage long sys_pipe2(int __user *fildes, int flags);
447
448/* fs/quota.c */
449asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
450 qid_t id, void __user *addr);
451
452/* fs/readdir.c */
453asmlinkage long sys_getdents64(unsigned int fd,
454 struct linux_dirent64 __user *dirent,
455 unsigned int count);
456
457/* fs/read_write.c */
458asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
459 unsigned long offset_low, loff_t __user *result,
460 unsigned int whence);
461asmlinkage long sys_lseek(unsigned int fd, off_t offset,
462 unsigned int whence);
463asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
464asmlinkage long sys_write(unsigned int fd, const char __user *buf,
465 size_t count);
466asmlinkage long sys_readv(unsigned long fd,
467 const struct iovec __user *vec,
468 unsigned long vlen);
469asmlinkage long sys_writev(unsigned long fd,
470 const struct iovec __user *vec,
471 unsigned long vlen);
472asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
473 size_t count, loff_t pos);
474asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
475 size_t count, loff_t pos);
476asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
477 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
478asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
479 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
480
481/* fs/sendfile.c */
482asmlinkage long sys_sendfile64(int out_fd, int in_fd,
483 loff_t __user *offset, size_t count);
484
485/* fs/select.c */
486asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
487 fd_set __user *, struct __kernel_timespec __user *,
488 void __user *);
489asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *,
490 fd_set __user *, struct old_timespec32 __user *,
491 void __user *);
492asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
493 struct __kernel_timespec __user *, const sigset_t __user *,
494 size_t);
495asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int,
496 struct old_timespec32 __user *, const sigset_t __user *,
497 size_t);
498
499/* fs/signalfd.c */
500asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
501
502/* fs/splice.c */
503asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
504 unsigned long nr_segs, unsigned int flags);
505asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
506 int fd_out, loff_t __user *off_out,
507 size_t len, unsigned int flags);
508asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
509
510/* fs/stat.c */
511asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
512 int bufsiz);
513asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
514 struct stat __user *statbuf, int flag);
515asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
516#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
517asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
518asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
519 struct stat64 __user *statbuf, int flag);
520#endif
521
522/* fs/sync.c */
523asmlinkage long sys_sync(void);
524asmlinkage long sys_fsync(unsigned int fd);
525asmlinkage long sys_fdatasync(unsigned int fd);
526asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
527 loff_t offset, loff_t nbytes);
528asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
529 unsigned int flags);
530
531/* fs/timerfd.c */
532asmlinkage long sys_timerfd_create(int clockid, int flags);
533asmlinkage long sys_timerfd_settime(int ufd, int flags,
534 const struct __kernel_itimerspec __user *utmr,
535 struct __kernel_itimerspec __user *otmr);
536asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
537asmlinkage long sys_timerfd_gettime32(int ufd,
538 struct old_itimerspec32 __user *otmr);
539asmlinkage long sys_timerfd_settime32(int ufd, int flags,
540 const struct old_itimerspec32 __user *utmr,
541 struct old_itimerspec32 __user *otmr);
542
543/* fs/utimes.c */
544asmlinkage long sys_utimensat(int dfd, const char __user *filename,
545 struct __kernel_timespec __user *utimes,
546 int flags);
547asmlinkage long sys_utimensat_time32(unsigned int dfd,
548 const char __user *filename,
549 struct old_timespec32 __user *t, int flags);
550
551/* kernel/acct.c */
552asmlinkage long sys_acct(const char __user *name);
553
554/* kernel/capability.c */
555asmlinkage long sys_capget(cap_user_header_t header,
556 cap_user_data_t dataptr);
557asmlinkage long sys_capset(cap_user_header_t header,
558 const cap_user_data_t data);
559
560/* kernel/exec_domain.c */
561asmlinkage long sys_personality(unsigned int personality);
562
563/* kernel/exit.c */
564asmlinkage long sys_exit(int error_code);
565asmlinkage long sys_exit_group(int error_code);
566asmlinkage long sys_waitid(int which, pid_t pid,
567 struct siginfo __user *infop,
568 int options, struct rusage __user *ru);
569
570/* kernel/fork.c */
571asmlinkage long sys_set_tid_address(int __user *tidptr);
572asmlinkage long sys_unshare(unsigned long unshare_flags);
573
574/* kernel/futex.c */
575asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
576 struct __kernel_timespec __user *utime, u32 __user *uaddr2,
577 u32 val3);
578asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val,
579 struct old_timespec32 __user *utime, u32 __user *uaddr2,
580 u32 val3);
581asmlinkage long sys_get_robust_list(int pid,
582 struct robust_list_head __user * __user *head_ptr,
583 size_t __user *len_ptr);
584asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
585 size_t len);
586
587/* kernel/hrtimer.c */
588asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
589 struct __kernel_timespec __user *rmtp);
590asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp,
591 struct old_timespec32 __user *rmtp);
592
593/* kernel/itimer.c */
594asmlinkage long sys_getitimer(int which, struct itimerval __user *value);
595asmlinkage long sys_setitimer(int which,
596 struct itimerval __user *value,
597 struct itimerval __user *ovalue);
598
599/* kernel/kexec.c */
600asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
601 struct kexec_segment __user *segments,
602 unsigned long flags);
603
604/* kernel/module.c */
605asmlinkage long sys_init_module(void __user *umod, unsigned long len,
606 const char __user *uargs);
607asmlinkage long sys_delete_module(const char __user *name_user,
608 unsigned int flags);
609
610/* kernel/posix-timers.c */
611asmlinkage long sys_timer_create(clockid_t which_clock,
612 struct sigevent __user *timer_event_spec,
613 timer_t __user * created_timer_id);
614asmlinkage long sys_timer_gettime(timer_t timer_id,
615 struct __kernel_itimerspec __user *setting);
616asmlinkage long sys_timer_getoverrun(timer_t timer_id);
617asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
618 const struct __kernel_itimerspec __user *new_setting,
619 struct __kernel_itimerspec __user *old_setting);
620asmlinkage long sys_timer_delete(timer_t timer_id);
621asmlinkage long sys_clock_settime(clockid_t which_clock,
622 const struct __kernel_timespec __user *tp);
623asmlinkage long sys_clock_gettime(clockid_t which_clock,
624 struct __kernel_timespec __user *tp);
625asmlinkage long sys_clock_getres(clockid_t which_clock,
626 struct __kernel_timespec __user *tp);
627asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
628 const struct __kernel_timespec __user *rqtp,
629 struct __kernel_timespec __user *rmtp);
630asmlinkage long sys_timer_gettime32(timer_t timer_id,
631 struct old_itimerspec32 __user *setting);
632asmlinkage long sys_timer_settime32(timer_t timer_id, int flags,
633 struct old_itimerspec32 __user *new,
634 struct old_itimerspec32 __user *old);
635asmlinkage long sys_clock_settime32(clockid_t which_clock,
636 struct old_timespec32 __user *tp);
637asmlinkage long sys_clock_gettime32(clockid_t which_clock,
638 struct old_timespec32 __user *tp);
639asmlinkage long sys_clock_getres_time32(clockid_t which_clock,
640 struct old_timespec32 __user *tp);
641asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags,
642 struct old_timespec32 __user *rqtp,
643 struct old_timespec32 __user *rmtp);
644
645/* kernel/printk.c */
646asmlinkage long sys_syslog(int type, char __user *buf, int len);
647
648/* kernel/ptrace.c */
649asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
650 unsigned long data);
651/* kernel/sched/core.c */
652
653asmlinkage long sys_sched_setparam(pid_t pid,
654 struct sched_param __user *param);
655asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
656 struct sched_param __user *param);
657asmlinkage long sys_sched_getscheduler(pid_t pid);
658asmlinkage long sys_sched_getparam(pid_t pid,
659 struct sched_param __user *param);
660asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
661 unsigned long __user *user_mask_ptr);
662asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
663 unsigned long __user *user_mask_ptr);
664asmlinkage long sys_sched_yield(void);
665asmlinkage long sys_sched_get_priority_max(int policy);
666asmlinkage long sys_sched_get_priority_min(int policy);
667asmlinkage long sys_sched_rr_get_interval(pid_t pid,
668 struct __kernel_timespec __user *interval);
669asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid,
670 struct old_timespec32 __user *interval);
671
672/* kernel/signal.c */
673asmlinkage long sys_restart_syscall(void);
674asmlinkage long sys_kill(pid_t pid, int sig);
675asmlinkage long sys_tkill(pid_t pid, int sig);
676asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
677asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
678 struct sigaltstack __user *uoss);
679asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
680#ifndef CONFIG_ODD_RT_SIGACTION
681asmlinkage long sys_rt_sigaction(int,
682 const struct sigaction __user *,
683 struct sigaction __user *,
684 size_t);
685#endif
686asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
687 sigset_t __user *oset, size_t sigsetsize);
688asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
689asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
690 siginfo_t __user *uinfo,
691 const struct __kernel_timespec __user *uts,
692 size_t sigsetsize);
693asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese,
694 siginfo_t __user *uinfo,
695 const struct old_timespec32 __user *uts,
696 size_t sigsetsize);
697asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
698
699/* kernel/sys.c */
700asmlinkage long sys_setpriority(int which, int who, int niceval);
701asmlinkage long sys_getpriority(int which, int who);
702asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
703 void __user *arg);
704asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
705asmlinkage long sys_setgid(gid_t gid);
706asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
707asmlinkage long sys_setuid(uid_t uid);
708asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
709asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
710asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
711asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
712asmlinkage long sys_setfsuid(uid_t uid);
713asmlinkage long sys_setfsgid(gid_t gid);
714asmlinkage long sys_times(struct tms __user *tbuf);
715asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
716asmlinkage long sys_getpgid(pid_t pid);
717asmlinkage long sys_getsid(pid_t pid);
718asmlinkage long sys_setsid(void);
719asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
720asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
721asmlinkage long sys_newuname(struct new_utsname __user *name);
722asmlinkage long sys_sethostname(char __user *name, int len);
723asmlinkage long sys_setdomainname(char __user *name, int len);
724asmlinkage long sys_getrlimit(unsigned int resource,
725 struct rlimit __user *rlim);
726asmlinkage long sys_setrlimit(unsigned int resource,
727 struct rlimit __user *rlim);
728asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
729asmlinkage long sys_umask(int mask);
730asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
731 unsigned long arg4, unsigned long arg5);
732asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
733
734/* kernel/time.c */
735asmlinkage long sys_gettimeofday(struct timeval __user *tv,
736 struct timezone __user *tz);
737asmlinkage long sys_settimeofday(struct timeval __user *tv,
738 struct timezone __user *tz);
739asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p);
740asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p);
741
742/* kernel/timer.c */
743asmlinkage long sys_getpid(void);
744asmlinkage long sys_getppid(void);
745asmlinkage long sys_getuid(void);
746asmlinkage long sys_geteuid(void);
747asmlinkage long sys_getgid(void);
748asmlinkage long sys_getegid(void);
749asmlinkage long sys_gettid(void);
750asmlinkage long sys_sysinfo(struct sysinfo __user *info);
751
752/* ipc/mqueue.c */
753asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
754asmlinkage long sys_mq_unlink(const char __user *name);
755asmlinkage 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);
756asmlinkage 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);
757asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
758asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
759asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes,
760 char __user *u_msg_ptr,
761 unsigned int msg_len, unsigned int __user *u_msg_prio,
762 const struct old_timespec32 __user *u_abs_timeout);
763asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes,
764 const char __user *u_msg_ptr,
765 unsigned int msg_len, unsigned int msg_prio,
766 const struct old_timespec32 __user *u_abs_timeout);
767
768/* ipc/msg.c */
769asmlinkage long sys_msgget(key_t key, int msgflg);
770asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
771asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
772asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
773 size_t msgsz, long msgtyp, int msgflg);
774asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
775 size_t msgsz, int msgflg);
776
777/* ipc/sem.c */
778asmlinkage long sys_semget(key_t key, int nsems, int semflg);
779asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
780asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
781asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
782 unsigned nsops,
783 const struct __kernel_timespec __user *timeout);
784asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops,
785 unsigned nsops,
786 const struct old_timespec32 __user *timeout);
787asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
788 unsigned nsops);
789
790/* ipc/shm.c */
791asmlinkage long sys_shmget(key_t key, size_t size, int flag);
792asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
793asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
794asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
795asmlinkage long sys_shmdt(char __user *shmaddr);
796
797/* net/socket.c */
798asmlinkage long sys_socket(int, int, int);
799asmlinkage long sys_socketpair(int, int, int, int __user *);
800asmlinkage long sys_bind(int, struct sockaddr __user *, int);
801asmlinkage long sys_listen(int, int);
802asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
803asmlinkage long sys_connect(int, struct sockaddr __user *, int);
804asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
805asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
806asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
807 struct sockaddr __user *, int);
808asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
809 struct sockaddr __user *, int __user *);
810asmlinkage long sys_setsockopt(int fd, int level, int optname,
811 char __user *optval, int optlen);
812asmlinkage long sys_getsockopt(int fd, int level, int optname,
813 char __user *optval, int __user *optlen);
814asmlinkage long sys_shutdown(int, int);
815asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
816asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
817
818/* mm/filemap.c */
819asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
820
821/* mm/nommu.c, also with MMU */
822asmlinkage long sys_brk(unsigned long brk);
823asmlinkage long sys_munmap(unsigned long addr, size_t len);
824asmlinkage long sys_mremap(unsigned long addr,
825 unsigned long old_len, unsigned long new_len,
826 unsigned long flags, unsigned long new_addr);
827
828/* security/keys/keyctl.c */
829asmlinkage long sys_add_key(const char __user *_type,
830 const char __user *_description,
831 const void __user *_payload,
832 size_t plen,
833 key_serial_t destringid);
834asmlinkage long sys_request_key(const char __user *_type,
835 const char __user *_description,
836 const char __user *_callout_info,
837 key_serial_t destringid);
838asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
839 unsigned long arg4, unsigned long arg5);
840
841/* arch/example/kernel/sys_example.c */
842#ifdef CONFIG_CLONE_BACKWARDS
843asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
844 int __user *);
845#else
846#ifdef CONFIG_CLONE_BACKWARDS3
847asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
848 int __user *, unsigned long);
849#else
850asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
851 int __user *, unsigned long);
852#endif
853#endif
854
855asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size);
856
857asmlinkage long sys_execve(const char __user *filename,
858 const char __user *const __user *argv,
859 const char __user *const __user *envp);
860
861/* mm/fadvise.c */
862asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
863
864/* mm/, CONFIG_MMU only */
865asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
866asmlinkage long sys_swapoff(const char __user *specialfile);
867asmlinkage long sys_mprotect(unsigned long start, size_t len,
868 unsigned long prot);
869asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
870asmlinkage long sys_mlock(unsigned long start, size_t len);
871asmlinkage long sys_munlock(unsigned long start, size_t len);
872asmlinkage long sys_mlockall(int flags);
873asmlinkage long sys_munlockall(void);
874asmlinkage long sys_mincore(unsigned long start, size_t len,
875 unsigned char __user * vec);
876asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
877asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
878 unsigned long prot, unsigned long pgoff,
879 unsigned long flags);
880asmlinkage long sys_mbind(unsigned long start, unsigned long len,
881 unsigned long mode,
882 const unsigned long __user *nmask,
883 unsigned long maxnode,
884 unsigned flags);
885asmlinkage long sys_get_mempolicy(int __user *policy,
886 unsigned long __user *nmask,
887 unsigned long maxnode,
888 unsigned long addr, unsigned long flags);
889asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
890 unsigned long maxnode);
891asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
892 const unsigned long __user *from,
893 const unsigned long __user *to);
894asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
895 const void __user * __user *pages,
896 const int __user *nodes,
897 int __user *status,
898 int flags);
899
900asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
901 siginfo_t __user *uinfo);
902asmlinkage long sys_perf_event_open(
903 struct perf_event_attr __user *attr_uptr,
904 pid_t pid, int cpu, int group_fd, unsigned long flags);
905asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
906asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
907 unsigned int vlen, unsigned flags,
908 struct __kernel_timespec __user *timeout);
909asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
910 unsigned int vlen, unsigned flags,
911 struct old_timespec32 __user *timeout);
912
913asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
914 int options, struct rusage __user *ru);
915asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
916 const struct rlimit64 __user *new_rlim,
917 struct rlimit64 __user *old_rlim);
918asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
919asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
920 u64 mask, int fd,
921 const char __user *pathname);
922asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
923 struct file_handle __user *handle,
924 int __user *mnt_id, int flag);
925asmlinkage long sys_open_by_handle_at(int mountdirfd,
926 struct file_handle __user *handle,
927 int flags);
928asmlinkage long sys_clock_adjtime(clockid_t which_clock,
929 struct __kernel_timex __user *tx);
930asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
931 struct old_timex32 __user *tx);
932asmlinkage long sys_syncfs(int fd);
933asmlinkage long sys_setns(int fd, int nstype);
934asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
935asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
936 unsigned int vlen, unsigned flags);
937asmlinkage long sys_process_vm_readv(pid_t pid,
938 const struct iovec __user *lvec,
939 unsigned long liovcnt,
940 const struct iovec __user *rvec,
941 unsigned long riovcnt,
942 unsigned long flags);
943asmlinkage long sys_process_vm_writev(pid_t pid,
944 const struct iovec __user *lvec,
945 unsigned long liovcnt,
946 const struct iovec __user *rvec,
947 unsigned long riovcnt,
948 unsigned long flags);
949asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
950 unsigned long idx1, unsigned long idx2);
951asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
952asmlinkage long sys_sched_setattr(pid_t pid,
953 struct sched_attr __user *attr,
954 unsigned int flags);
955asmlinkage long sys_sched_getattr(pid_t pid,
956 struct sched_attr __user *attr,
957 unsigned int size,
958 unsigned int flags);
959asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
960 int newdfd, const char __user *newname,
961 unsigned int flags);
962asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
963 void __user *uargs);
964asmlinkage long sys_getrandom(char __user *buf, size_t count,
965 unsigned int flags);
966asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
967asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
968asmlinkage long sys_execveat(int dfd, const char __user *filename,
969 const char __user *const __user *argv,
970 const char __user *const __user *envp, int flags);
971asmlinkage long sys_userfaultfd(int flags);
972asmlinkage long sys_membarrier(int cmd, int flags);
973asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
974asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
975 int fd_out, loff_t __user *off_out,
976 size_t len, unsigned int flags);
977asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
978 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
979 rwf_t flags);
980asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
981 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
982 rwf_t flags);
983asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
984 unsigned long prot, int pkey);
985asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
986asmlinkage long sys_pkey_free(int pkey);
987asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
988 unsigned mask, struct statx __user *buffer);
989asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
990 int flags, uint32_t sig);
991asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
992asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
993 int to_dfd, const char __user *to_path,
994 unsigned int ms_flags);
995asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
996asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
997 const void __user *value, int aux);
998asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
999asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
1000asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
1001 siginfo_t __user *info,
1002 unsigned int flags);
1003
1004/*
1005 * Architecture-specific system calls
1006 */
1007
1008/* arch/x86/kernel/ioport.c */
1009asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
1010
1011/* pciconfig: alpha, arm, arm64, ia64, sparc */
1012asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
1013 unsigned long off, unsigned long len,
1014 void __user *buf);
1015asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
1016 unsigned long off, unsigned long len,
1017 void __user *buf);
1018asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
1019
1020/* powerpc */
1021asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
1022 __u32 __user *ustatus);
1023asmlinkage long sys_spu_create(const char __user *name,
1024 unsigned int flags, umode_t mode, int fd);
1025
1026
1027/*
1028 * Deprecated system calls which are still defined in
1029 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
1030 */
1031
1032/* __ARCH_WANT_SYSCALL_NO_AT */
1033asmlinkage long sys_open(const char __user *filename,
1034 int flags, umode_t mode);
1035asmlinkage long sys_link(const char __user *oldname,
1036 const char __user *newname);
1037asmlinkage long sys_unlink(const char __user *pathname);
1038asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
1039 unsigned dev);
1040asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
1041asmlinkage long sys_chown(const char __user *filename,
1042 uid_t user, gid_t group);
1043asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
1044asmlinkage long sys_rmdir(const char __user *pathname);
1045asmlinkage long sys_lchown(const char __user *filename,
1046 uid_t user, gid_t group);
1047asmlinkage long sys_access(const char __user *filename, int mode);
1048asmlinkage long sys_rename(const char __user *oldname,
1049 const char __user *newname);
1050asmlinkage long sys_symlink(const char __user *old, const char __user *new);
1051#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
1052asmlinkage long sys_stat64(const char __user *filename,
1053 struct stat64 __user *statbuf);
1054asmlinkage long sys_lstat64(const char __user *filename,
1055 struct stat64 __user *statbuf);
1056#endif
1057
1058/* __ARCH_WANT_SYSCALL_NO_FLAGS */
1059asmlinkage long sys_pipe(int __user *fildes);
1060asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
1061asmlinkage long sys_epoll_create(int size);
1062asmlinkage long sys_inotify_init(void);
1063asmlinkage long sys_eventfd(unsigned int count);
1064asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
1065
1066/* __ARCH_WANT_SYSCALL_OFF_T */
1067asmlinkage long sys_sendfile(int out_fd, int in_fd,
1068 off_t __user *offset, size_t count);
1069asmlinkage long sys_newstat(const char __user *filename,
1070 struct stat __user *statbuf);
1071asmlinkage long sys_newlstat(const char __user *filename,
1072 struct stat __user *statbuf);
1073asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
1074
1075/* __ARCH_WANT_SYSCALL_DEPRECATED */
1076asmlinkage long sys_alarm(unsigned int seconds);
1077asmlinkage long sys_getpgrp(void);
1078asmlinkage long sys_pause(void);
1079asmlinkage long sys_time(time_t __user *tloc);
1080asmlinkage long sys_time32(old_time32_t __user *tloc);
1081#ifdef __ARCH_WANT_SYS_UTIME
1082asmlinkage long sys_utime(char __user *filename,
1083 struct utimbuf __user *times);
1084asmlinkage long sys_utimes(char __user *filename,
1085 struct timeval __user *utimes);
1086asmlinkage long sys_futimesat(int dfd, const char __user *filename,
1087 struct timeval __user *utimes);
1088#endif
1089asmlinkage long sys_futimesat_time32(unsigned int dfd,
1090 const char __user *filename,
1091 struct old_timeval32 __user *t);
1092asmlinkage long sys_utime32(const char __user *filename,
1093 struct old_utimbuf32 __user *t);
1094asmlinkage long sys_utimes_time32(const char __user *filename,
1095 struct old_timeval32 __user *t);
1096asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
1097asmlinkage long sys_getdents(unsigned int fd,
1098 struct linux_dirent __user *dirent,
1099 unsigned int count);
1100asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
1101 fd_set __user *exp, struct timeval __user *tvp);
1102asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
1103 int timeout);
1104asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
1105 int maxevents, int timeout);
1106asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
1107asmlinkage long sys_vfork(void);
1108asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
1109asmlinkage long sys_send(int, void __user *, size_t, unsigned);
1110asmlinkage long sys_bdflush(int func, long data);
1111asmlinkage long sys_oldumount(char __user *name);
1112asmlinkage long sys_uselib(const char __user *library);
1113asmlinkage long sys_sysctl(struct __sysctl_args __user *args);
1114asmlinkage long sys_sysfs(int option,
1115 unsigned long arg1, unsigned long arg2);
1116asmlinkage long sys_fork(void);
1117
1118/* obsolete: kernel/time/time.c */
1119asmlinkage long sys_stime(time_t __user *tptr);
1120asmlinkage long sys_stime32(old_time32_t __user *tptr);
1121
1122/* obsolete: kernel/signal.c */
1123asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1124asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1125 old_sigset_t __user *oset);
1126#ifdef CONFIG_OLD_SIGSUSPEND
1127asmlinkage long sys_sigsuspend(old_sigset_t mask);
1128#endif
1129
1130#ifdef CONFIG_OLD_SIGSUSPEND3
1131asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1132#endif
1133
1134#ifdef CONFIG_OLD_SIGACTION
1135asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1136 struct old_sigaction __user *);
1137#endif
1138asmlinkage long sys_sgetmask(void);
1139asmlinkage long sys_ssetmask(int newmask);
1140asmlinkage long sys_signal(int sig, __sighandler_t handler);
1141
1142/* obsolete: kernel/sched/core.c */
1143asmlinkage long sys_nice(int increment);
1144
1145/* obsolete: kernel/kexec_file.c */
1146asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1147 unsigned long cmdline_len,
1148 const char __user *cmdline_ptr,
1149 unsigned long flags);
1150
1151/* obsolete: kernel/exit.c */
1152asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1153
1154/* obsolete: kernel/uid16.c */
1155#ifdef CONFIG_HAVE_UID16
1156asmlinkage long sys_chown16(const char __user *filename,
1157 old_uid_t user, old_gid_t group);
1158asmlinkage long sys_lchown16(const char __user *filename,
1159 old_uid_t user, old_gid_t group);
1160asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1161asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1162asmlinkage long sys_setgid16(old_gid_t gid);
1163asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1164asmlinkage long sys_setuid16(old_uid_t uid);
1165asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1166asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1167 old_uid_t __user *euid, old_uid_t __user *suid);
1168asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1169asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1170 old_gid_t __user *egid, old_gid_t __user *sgid);
1171asmlinkage long sys_setfsuid16(old_uid_t uid);
1172asmlinkage long sys_setfsgid16(old_gid_t gid);
1173asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1174asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1175asmlinkage long sys_getuid16(void);
1176asmlinkage long sys_geteuid16(void);
1177asmlinkage long sys_getgid16(void);
1178asmlinkage long sys_getegid16(void);
1179#endif
1180
1181/* obsolete: net/socket.c */
1182asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1183
1184/* obsolete: fs/stat.c */
1185asmlinkage long sys_stat(const char __user *filename,
1186 struct __old_kernel_stat __user *statbuf);
1187asmlinkage long sys_lstat(const char __user *filename,
1188 struct __old_kernel_stat __user *statbuf);
1189asmlinkage long sys_fstat(unsigned int fd,
1190 struct __old_kernel_stat __user *statbuf);
1191asmlinkage long sys_readlink(const char __user *path,
1192 char __user *buf, int bufsiz);
1193
1194/* obsolete: fs/select.c */
1195asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1196
1197/* obsolete: fs/readdir.c */
1198asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1199
1200/* obsolete: kernel/sys.c */
1201asmlinkage long sys_gethostname(char __user *name, int len);
1202asmlinkage long sys_uname(struct old_utsname __user *);
1203asmlinkage long sys_olduname(struct oldold_utsname __user *);
1204#ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1205asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1206#endif
1207
1208/* obsolete: ipc */
1209asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1210 unsigned long third, void __user *ptr, long fifth);
1211
1212/* obsolete: mm/ */
1213asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1214 unsigned long prot, unsigned long flags,
1215 unsigned long fd, unsigned long pgoff);
1216asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1217
1218
1219/*
1220 * Not a real system call, but a placeholder for syscalls which are
1221 * not implemented -- see kernel/sys_ni.c
1222 */
1223asmlinkage long sys_ni_syscall(void);
1224
1225#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1226
1227
1228/*
1229 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1230 * Instead, use one of the functions which work equivalently, such as
1231 * the ksys_xyzyyz() functions prototyped below.
1232 */
1233
1234int ksys_mount(const char __user *dev_name, const char __user *dir_name,
1235 const char __user *type, unsigned long flags, void __user *data);
1236int ksys_umount(char __user *name, int flags);
1237int ksys_dup(unsigned int fildes);
1238int ksys_chroot(const char __user *filename);
1239ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1240int ksys_chdir(const char __user *filename);
1241int ksys_fchmod(unsigned int fd, umode_t mode);
1242int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1243int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent,
1244 unsigned int count);
1245int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
1246off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence);
1247ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1248void ksys_sync(void);
1249int ksys_unshare(unsigned long unshare_flags);
1250int ksys_setsid(void);
1251int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1252 unsigned int flags);
1253ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1254 loff_t pos);
1255ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1256 size_t count, loff_t pos);
1257int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1258#ifdef CONFIG_ADVISE_SYSCALLS
1259int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1260#else
1261static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1262 int advice)
1263{
1264 return -EINVAL;
1265}
1266#endif
1267unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1268 unsigned long prot, unsigned long flags,
1269 unsigned long fd, unsigned long pgoff);
1270ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1271int ksys_ipc(unsigned int call, int first, unsigned long second,
1272 unsigned long third, void __user * ptr, long fifth);
1273int compat_ksys_ipc(u32 call, int first, int second,
1274 u32 third, u32 ptr, u32 fifth);
1275
1276/*
1277 * The following kernel syscall equivalents are just wrappers to fs-internal
1278 * functions. Therefore, provide stubs to be inlined at the callsites.
1279 */
1280extern long do_unlinkat(int dfd, struct filename *name);
1281
1282static inline long ksys_unlink(const char __user *pathname)
1283{
1284 return do_unlinkat(AT_FDCWD, getname(pathname));
1285}
1286
1287extern long do_rmdir(int dfd, const char __user *pathname);
1288
1289static inline long ksys_rmdir(const char __user *pathname)
1290{
1291 return do_rmdir(AT_FDCWD, pathname);
1292}
1293
1294extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode);
1295
1296static inline long ksys_mkdir(const char __user *pathname, umode_t mode)
1297{
1298 return do_mkdirat(AT_FDCWD, pathname, mode);
1299}
1300
1301extern long do_symlinkat(const char __user *oldname, int newdfd,
1302 const char __user *newname);
1303
1304static inline long ksys_symlink(const char __user *oldname,
1305 const char __user *newname)
1306{
1307 return do_symlinkat(oldname, AT_FDCWD, newname);
1308}
1309
1310extern long do_mknodat(int dfd, const char __user *filename, umode_t mode,
1311 unsigned int dev);
1312
1313static inline long ksys_mknod(const char __user *filename, umode_t mode,
1314 unsigned int dev)
1315{
1316 return do_mknodat(AT_FDCWD, filename, mode, dev);
1317}
1318
1319extern int do_linkat(int olddfd, const char __user *oldname, int newdfd,
1320 const char __user *newname, int flags);
1321
1322static inline long ksys_link(const char __user *oldname,
1323 const char __user *newname)
1324{
1325 return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0);
1326}
1327
1328extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode);
1329
1330static inline int ksys_chmod(const char __user *filename, umode_t mode)
1331{
1332 return do_fchmodat(AT_FDCWD, filename, mode);
1333}
1334
1335extern long do_faccessat(int dfd, const char __user *filename, int mode);
1336
1337static inline long ksys_access(const char __user *filename, int mode)
1338{
1339 return do_faccessat(AT_FDCWD, filename, mode);
1340}
1341
1342extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1343 gid_t group, int flag);
1344
1345static inline long ksys_chown(const char __user *filename, uid_t user,
1346 gid_t group)
1347{
1348 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1349}
1350
1351static inline long ksys_lchown(const char __user *filename, uid_t user,
1352 gid_t group)
1353{
1354 return do_fchownat(AT_FDCWD, filename, user, group,
1355 AT_SYMLINK_NOFOLLOW);
1356}
1357
1358extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1359
1360static inline long ksys_ftruncate(unsigned int fd, unsigned long length)
1361{
1362 return do_sys_ftruncate(fd, length, 1);
1363}
1364
1365extern int __close_fd(struct files_struct *files, unsigned int fd);
1366
1367/*
1368 * In contrast to sys_close(), this stub does not check whether the syscall
1369 * should or should not be restarted, but returns the raw error codes from
1370 * __close_fd().
1371 */
1372static inline int ksys_close(unsigned int fd)
1373{
1374 return __close_fd(current->files, fd);
1375}
1376
1377extern long do_sys_open(int dfd, const char __user *filename, int flags,
1378 umode_t mode);
1379
1380static inline long ksys_open(const char __user *filename, int flags,
1381 umode_t mode)
1382{
1383 if (force_o_largefile())
1384 flags |= O_LARGEFILE;
1385 return do_sys_open(AT_FDCWD, filename, flags, mode);
1386}
1387
1388extern long do_sys_truncate(const char __user *pathname, loff_t length);
1389
1390static inline long ksys_truncate(const char __user *pathname, loff_t length)
1391{
1392 return do_sys_truncate(pathname, length);
1393}
1394
1395static inline unsigned int ksys_personality(unsigned int personality)
1396{
1397 unsigned int old = current->personality;
1398
1399 if (personality != 0xffffffff)
1400 set_personality(personality);
1401
1402 return old;
1403}
1404
1405/* for __ARCH_WANT_SYS_IPC */
1406long ksys_semtimedop(int semid, struct sembuf __user *tsops,
1407 unsigned int nsops,
1408 const struct __kernel_timespec __user *timeout);
1409long ksys_semget(key_t key, int nsems, int semflg);
1410long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
1411long ksys_msgget(key_t key, int msgflg);
1412long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
1413long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1414 long msgtyp, int msgflg);
1415long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1416 int msgflg);
1417long ksys_shmget(key_t key, size_t size, int shmflg);
1418long ksys_shmdt(char __user *shmaddr);
1419long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
1420long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems,
1421 unsigned int nsops,
1422 const struct old_timespec32 __user *timeout);
1423
1424#endif