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1/*
2 * syscalls.h - Linux syscall interfaces (non-arch-specific)
3 *
4 * Copyright (c) 2004 Randy Dunlap
5 * Copyright (c) 2004 Open Source Development Labs
6 *
7 * This file is released under the GPLv2.
8 * See the file COPYING for more details.
9 */
10
11#ifndef _LINUX_SYSCALLS_H
12#define _LINUX_SYSCALLS_H
13
14struct __aio_sigset;
15struct epoll_event;
16struct iattr;
17struct inode;
18struct iocb;
19struct io_event;
20struct iovec;
21struct itimerspec;
22struct itimerval;
23struct kexec_segment;
24struct linux_dirent;
25struct linux_dirent64;
26struct list_head;
27struct mmap_arg_struct;
28struct msgbuf;
29struct user_msghdr;
30struct mmsghdr;
31struct msqid_ds;
32struct new_utsname;
33struct nfsctl_arg;
34struct __old_kernel_stat;
35struct oldold_utsname;
36struct old_utsname;
37struct pollfd;
38struct rlimit;
39struct rlimit64;
40struct rusage;
41struct sched_param;
42struct sched_attr;
43struct sel_arg_struct;
44struct semaphore;
45struct sembuf;
46struct shmid_ds;
47struct sockaddr;
48struct stat;
49struct stat64;
50struct statfs;
51struct statfs64;
52struct statx;
53struct __sysctl_args;
54struct sysinfo;
55struct timespec;
56struct timeval;
57struct __kernel_timex;
58struct timezone;
59struct tms;
60struct utimbuf;
61struct mq_attr;
62struct compat_stat;
63struct old_timeval32;
64struct robust_list_head;
65struct getcpu_cache;
66struct old_linux_dirent;
67struct perf_event_attr;
68struct file_handle;
69struct sigaltstack;
70struct rseq;
71union bpf_attr;
72struct io_uring_params;
73
74#include <linux/types.h>
75#include <linux/aio_abi.h>
76#include <linux/capability.h>
77#include <linux/signal.h>
78#include <linux/list.h>
79#include <linux/bug.h>
80#include <linux/sem.h>
81#include <asm/siginfo.h>
82#include <linux/unistd.h>
83#include <linux/quota.h>
84#include <linux/key.h>
85#include <linux/personality.h>
86#include <trace/syscall.h>
87
88#ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
89/*
90 * It may be useful for an architecture to override the definitions of the
91 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
92 * different calling convention for syscalls. To allow for that, the prototypes
93 * for the sys_*() functions below will *not* be included if
94 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
95 */
96#include <asm/syscall_wrapper.h>
97#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
98
99/*
100 * __MAP - apply a macro to syscall arguments
101 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
102 * m(t1, a1), m(t2, a2), ..., m(tn, an)
103 * The first argument must be equal to the amount of type/name
104 * pairs given. Note that this list of pairs (i.e. the arguments
105 * of __MAP starting at the third one) is in the same format as
106 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
107 */
108#define __MAP0(m,...)
109#define __MAP1(m,t,a,...) m(t,a)
110#define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
111#define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
112#define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
113#define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
114#define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
115#define __MAP(n,...) __MAP##n(__VA_ARGS__)
116
117#define __SC_DECL(t, a) t a
118#define __TYPE_AS(t, v) __same_type((__force t)0, v)
119#define __TYPE_IS_L(t) (__TYPE_AS(t, 0L))
120#define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
121#define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
122#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
123#define __SC_CAST(t, a) (__force t) a
124#define __SC_ARGS(t, a) a
125#define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
126
127#ifdef CONFIG_FTRACE_SYSCALLS
128#define __SC_STR_ADECL(t, a) #a
129#define __SC_STR_TDECL(t, a) #t
130
131extern struct trace_event_class event_class_syscall_enter;
132extern struct trace_event_class event_class_syscall_exit;
133extern struct trace_event_functions enter_syscall_print_funcs;
134extern struct trace_event_functions exit_syscall_print_funcs;
135
136#define SYSCALL_TRACE_ENTER_EVENT(sname) \
137 static struct syscall_metadata __syscall_meta_##sname; \
138 static struct trace_event_call __used \
139 event_enter_##sname = { \
140 .class = &event_class_syscall_enter, \
141 { \
142 .name = "sys_enter"#sname, \
143 }, \
144 .event.funcs = &enter_syscall_print_funcs, \
145 .data = (void *)&__syscall_meta_##sname,\
146 .flags = TRACE_EVENT_FL_CAP_ANY, \
147 }; \
148 static struct trace_event_call __used \
149 __attribute__((section("_ftrace_events"))) \
150 *__event_enter_##sname = &event_enter_##sname;
151
152#define SYSCALL_TRACE_EXIT_EVENT(sname) \
153 static struct syscall_metadata __syscall_meta_##sname; \
154 static struct trace_event_call __used \
155 event_exit_##sname = { \
156 .class = &event_class_syscall_exit, \
157 { \
158 .name = "sys_exit"#sname, \
159 }, \
160 .event.funcs = &exit_syscall_print_funcs, \
161 .data = (void *)&__syscall_meta_##sname,\
162 .flags = TRACE_EVENT_FL_CAP_ANY, \
163 }; \
164 static struct trace_event_call __used \
165 __attribute__((section("_ftrace_events"))) \
166 *__event_exit_##sname = &event_exit_##sname;
167
168#define SYSCALL_METADATA(sname, nb, ...) \
169 static const char *types_##sname[] = { \
170 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
171 }; \
172 static const char *args_##sname[] = { \
173 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
174 }; \
175 SYSCALL_TRACE_ENTER_EVENT(sname); \
176 SYSCALL_TRACE_EXIT_EVENT(sname); \
177 static struct syscall_metadata __used \
178 __syscall_meta_##sname = { \
179 .name = "sys"#sname, \
180 .syscall_nr = -1, /* Filled in at boot */ \
181 .nb_args = nb, \
182 .types = nb ? types_##sname : NULL, \
183 .args = nb ? args_##sname : NULL, \
184 .enter_event = &event_enter_##sname, \
185 .exit_event = &event_exit_##sname, \
186 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
187 }; \
188 static struct syscall_metadata __used \
189 __attribute__((section("__syscalls_metadata"))) \
190 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
191
192static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
193{
194 return tp_event->class == &event_class_syscall_enter ||
195 tp_event->class == &event_class_syscall_exit;
196}
197
198#else
199#define SYSCALL_METADATA(sname, nb, ...)
200
201static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
202{
203 return 0;
204}
205#endif
206
207#ifndef SYSCALL_DEFINE0
208#define SYSCALL_DEFINE0(sname) \
209 SYSCALL_METADATA(_##sname, 0); \
210 asmlinkage long sys_##sname(void); \
211 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
212 asmlinkage long sys_##sname(void)
213#endif /* SYSCALL_DEFINE0 */
214
215#define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
216#define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
217#define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
218#define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
219#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
220#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
221
222#define SYSCALL_DEFINE_MAXARGS 6
223
224#define SYSCALL_DEFINEx(x, sname, ...) \
225 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
226 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
227
228#define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
229
230/*
231 * The asmlinkage stub is aliased to a function named __se_sys_*() which
232 * sign-extends 32-bit ints to longs whenever needed. The actual work is
233 * done within __do_sys_*().
234 */
235#ifndef __SYSCALL_DEFINEx
236#define __SYSCALL_DEFINEx(x, name, ...) \
237 __diag_push(); \
238 __diag_ignore(GCC, 8, "-Wattribute-alias", \
239 "Type aliasing is used to sanitize syscall arguments");\
240 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
241 __attribute__((alias(__stringify(__se_sys##name)))); \
242 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
243 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
244 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
245 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
246 { \
247 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
248 __MAP(x,__SC_TEST,__VA_ARGS__); \
249 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
250 return ret; \
251 } \
252 __diag_pop(); \
253 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
254#endif /* __SYSCALL_DEFINEx */
255
256/*
257 * Called before coming back to user-mode. Returning to user-mode with an
258 * address limit different than USER_DS can allow to overwrite kernel memory.
259 */
260static inline void addr_limit_user_check(void)
261{
262#ifdef TIF_FSCHECK
263 if (!test_thread_flag(TIF_FSCHECK))
264 return;
265#endif
266
267 if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS),
268 "Invalid address limit on user-mode return"))
269 force_sig(SIGKILL, current);
270
271#ifdef TIF_FSCHECK
272 clear_thread_flag(TIF_FSCHECK);
273#endif
274}
275
276/*
277 * These syscall function prototypes are kept in the same order as
278 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
279 * followed by deprecated or obsolete system calls.
280 *
281 * Please note that these prototypes here are only provided for information
282 * purposes, for static analysis, and for linking from the syscall table.
283 * These functions should not be called elsewhere from kernel code.
284 *
285 * As the syscall calling convention may be different from the default
286 * for architectures overriding the syscall calling convention, do not
287 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
288 */
289#ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
290asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
291asmlinkage long sys_io_destroy(aio_context_t ctx);
292asmlinkage long sys_io_submit(aio_context_t, long,
293 struct iocb __user * __user *);
294asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
295 struct io_event __user *result);
296asmlinkage long sys_io_getevents(aio_context_t ctx_id,
297 long min_nr,
298 long nr,
299 struct io_event __user *events,
300 struct __kernel_timespec __user *timeout);
301asmlinkage long sys_io_getevents_time32(__u32 ctx_id,
302 __s32 min_nr,
303 __s32 nr,
304 struct io_event __user *events,
305 struct old_timespec32 __user *timeout);
306asmlinkage long sys_io_pgetevents(aio_context_t ctx_id,
307 long min_nr,
308 long nr,
309 struct io_event __user *events,
310 struct __kernel_timespec __user *timeout,
311 const struct __aio_sigset *sig);
312asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id,
313 long min_nr,
314 long nr,
315 struct io_event __user *events,
316 struct old_timespec32 __user *timeout,
317 const struct __aio_sigset *sig);
318asmlinkage long sys_io_uring_setup(u32 entries,
319 struct io_uring_params __user *p);
320asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit,
321 u32 min_complete, u32 flags,
322 const sigset_t __user *sig, size_t sigsz);
323asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op,
324 void __user *arg, unsigned int nr_args);
325
326/* fs/xattr.c */
327asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
328 const void __user *value, size_t size, int flags);
329asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
330 const void __user *value, size_t size, int flags);
331asmlinkage long sys_fsetxattr(int fd, const char __user *name,
332 const void __user *value, size_t size, int flags);
333asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
334 void __user *value, size_t size);
335asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
336 void __user *value, size_t size);
337asmlinkage long sys_fgetxattr(int fd, const char __user *name,
338 void __user *value, size_t size);
339asmlinkage long sys_listxattr(const char __user *path, char __user *list,
340 size_t size);
341asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
342 size_t size);
343asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
344asmlinkage long sys_removexattr(const char __user *path,
345 const char __user *name);
346asmlinkage long sys_lremovexattr(const char __user *path,
347 const char __user *name);
348asmlinkage long sys_fremovexattr(int fd, const char __user *name);
349
350/* fs/dcache.c */
351asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
352
353/* fs/cookies.c */
354asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len);
355
356/* fs/eventfd.c */
357asmlinkage long sys_eventfd2(unsigned int count, int flags);
358
359/* fs/eventpoll.c */
360asmlinkage long sys_epoll_create1(int flags);
361asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
362 struct epoll_event __user *event);
363asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
364 int maxevents, int timeout,
365 const sigset_t __user *sigmask,
366 size_t sigsetsize);
367
368/* fs/fcntl.c */
369asmlinkage long sys_dup(unsigned int fildes);
370asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
371asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
372#if BITS_PER_LONG == 32
373asmlinkage long sys_fcntl64(unsigned int fd,
374 unsigned int cmd, unsigned long arg);
375#endif
376
377/* fs/inotify_user.c */
378asmlinkage long sys_inotify_init1(int flags);
379asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
380 u32 mask);
381asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
382
383/* fs/ioctl.c */
384asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
385 unsigned long arg);
386
387/* fs/ioprio.c */
388asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
389asmlinkage long sys_ioprio_get(int which, int who);
390
391/* fs/locks.c */
392asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
393
394/* fs/namei.c */
395asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
396 unsigned dev);
397asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
398asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
399asmlinkage long sys_symlinkat(const char __user * oldname,
400 int newdfd, const char __user * newname);
401asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
402 int newdfd, const char __user *newname, int flags);
403asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
404 int newdfd, const char __user * newname);
405
406/* fs/namespace.c */
407asmlinkage long sys_umount(char __user *name, int flags);
408asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
409 char __user *type, unsigned long flags,
410 void __user *data);
411asmlinkage long sys_pivot_root(const char __user *new_root,
412 const char __user *put_old);
413
414/* fs/nfsctl.c */
415
416/* fs/open.c */
417asmlinkage long sys_statfs(const char __user * path,
418 struct statfs __user *buf);
419asmlinkage long sys_statfs64(const char __user *path, size_t sz,
420 struct statfs64 __user *buf);
421asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
422asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
423 struct statfs64 __user *buf);
424asmlinkage long sys_truncate(const char __user *path, long length);
425asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
426#if BITS_PER_LONG == 32
427asmlinkage long sys_truncate64(const char __user *path, loff_t length);
428asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
429#endif
430asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
431asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
432asmlinkage long sys_chdir(const char __user *filename);
433asmlinkage long sys_fchdir(unsigned int fd);
434asmlinkage long sys_chroot(const char __user *filename);
435asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
436asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
437 umode_t mode);
438asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
439 gid_t group, int flag);
440asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
441asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
442 umode_t mode);
443asmlinkage long sys_close(unsigned int fd);
444asmlinkage long sys_vhangup(void);
445
446/* fs/pipe.c */
447asmlinkage long sys_pipe2(int __user *fildes, int flags);
448
449/* fs/quota.c */
450asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
451 qid_t id, void __user *addr);
452
453/* fs/readdir.c */
454asmlinkage long sys_getdents64(unsigned int fd,
455 struct linux_dirent64 __user *dirent,
456 unsigned int count);
457
458/* fs/read_write.c */
459asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
460 unsigned long offset_low, loff_t __user *result,
461 unsigned int whence);
462asmlinkage long sys_lseek(unsigned int fd, off_t offset,
463 unsigned int whence);
464asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
465asmlinkage long sys_write(unsigned int fd, const char __user *buf,
466 size_t count);
467asmlinkage long sys_readv(unsigned long fd,
468 const struct iovec __user *vec,
469 unsigned long vlen);
470asmlinkage long sys_writev(unsigned long fd,
471 const struct iovec __user *vec,
472 unsigned long vlen);
473asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
474 size_t count, loff_t pos);
475asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
476 size_t count, loff_t pos);
477asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
478 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
479asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
480 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
481
482/* fs/sendfile.c */
483asmlinkage long sys_sendfile64(int out_fd, int in_fd,
484 loff_t __user *offset, size_t count);
485
486/* fs/select.c */
487asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
488 fd_set __user *, struct __kernel_timespec __user *,
489 void __user *);
490asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *,
491 fd_set __user *, struct old_timespec32 __user *,
492 void __user *);
493asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
494 struct __kernel_timespec __user *, const sigset_t __user *,
495 size_t);
496asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int,
497 struct old_timespec32 __user *, const sigset_t __user *,
498 size_t);
499
500/* fs/signalfd.c */
501asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
502
503/* fs/splice.c */
504asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
505 unsigned long nr_segs, unsigned int flags);
506asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
507 int fd_out, loff_t __user *off_out,
508 size_t len, unsigned int flags);
509asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
510
511/* fs/stat.c */
512asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
513 int bufsiz);
514asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
515 struct stat __user *statbuf, int flag);
516asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
517#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
518asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
519asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
520 struct stat64 __user *statbuf, int flag);
521#endif
522
523/* fs/sync.c */
524asmlinkage long sys_sync(void);
525asmlinkage long sys_fsync(unsigned int fd);
526asmlinkage long sys_fdatasync(unsigned int fd);
527asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
528 loff_t offset, loff_t nbytes);
529asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
530 unsigned int flags);
531
532/* fs/timerfd.c */
533asmlinkage long sys_timerfd_create(int clockid, int flags);
534asmlinkage long sys_timerfd_settime(int ufd, int flags,
535 const struct __kernel_itimerspec __user *utmr,
536 struct __kernel_itimerspec __user *otmr);
537asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
538asmlinkage long sys_timerfd_gettime32(int ufd,
539 struct old_itimerspec32 __user *otmr);
540asmlinkage long sys_timerfd_settime32(int ufd, int flags,
541 const struct old_itimerspec32 __user *utmr,
542 struct old_itimerspec32 __user *otmr);
543
544/* fs/utimes.c */
545asmlinkage long sys_utimensat(int dfd, const char __user *filename,
546 struct __kernel_timespec __user *utimes,
547 int flags);
548asmlinkage long sys_utimensat_time32(unsigned int dfd,
549 const char __user *filename,
550 struct old_timespec32 __user *t, int flags);
551
552/* kernel/acct.c */
553asmlinkage long sys_acct(const char __user *name);
554
555/* kernel/capability.c */
556asmlinkage long sys_capget(cap_user_header_t header,
557 cap_user_data_t dataptr);
558asmlinkage long sys_capset(cap_user_header_t header,
559 const cap_user_data_t data);
560
561/* kernel/exec_domain.c */
562asmlinkage long sys_personality(unsigned int personality);
563
564/* kernel/exit.c */
565asmlinkage long sys_exit(int error_code);
566asmlinkage long sys_exit_group(int error_code);
567asmlinkage long sys_waitid(int which, pid_t pid,
568 struct siginfo __user *infop,
569 int options, struct rusage __user *ru);
570
571/* kernel/fork.c */
572asmlinkage long sys_set_tid_address(int __user *tidptr);
573asmlinkage long sys_unshare(unsigned long unshare_flags);
574
575/* kernel/futex.c */
576asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
577 struct __kernel_timespec __user *utime, u32 __user *uaddr2,
578 u32 val3);
579asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val,
580 struct old_timespec32 __user *utime, u32 __user *uaddr2,
581 u32 val3);
582asmlinkage long sys_get_robust_list(int pid,
583 struct robust_list_head __user * __user *head_ptr,
584 size_t __user *len_ptr);
585asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
586 size_t len);
587
588/* kernel/hrtimer.c */
589asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
590 struct __kernel_timespec __user *rmtp);
591asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp,
592 struct old_timespec32 __user *rmtp);
593
594/* kernel/itimer.c */
595asmlinkage long sys_getitimer(int which, struct itimerval __user *value);
596asmlinkage long sys_setitimer(int which,
597 struct itimerval __user *value,
598 struct itimerval __user *ovalue);
599
600/* kernel/kexec.c */
601asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
602 struct kexec_segment __user *segments,
603 unsigned long flags);
604
605/* kernel/module.c */
606asmlinkage long sys_init_module(void __user *umod, unsigned long len,
607 const char __user *uargs);
608asmlinkage long sys_delete_module(const char __user *name_user,
609 unsigned int flags);
610
611/* kernel/posix-timers.c */
612asmlinkage long sys_timer_create(clockid_t which_clock,
613 struct sigevent __user *timer_event_spec,
614 timer_t __user * created_timer_id);
615asmlinkage long sys_timer_gettime(timer_t timer_id,
616 struct __kernel_itimerspec __user *setting);
617asmlinkage long sys_timer_getoverrun(timer_t timer_id);
618asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
619 const struct __kernel_itimerspec __user *new_setting,
620 struct __kernel_itimerspec __user *old_setting);
621asmlinkage long sys_timer_delete(timer_t timer_id);
622asmlinkage long sys_clock_settime(clockid_t which_clock,
623 const struct __kernel_timespec __user *tp);
624asmlinkage long sys_clock_gettime(clockid_t which_clock,
625 struct __kernel_timespec __user *tp);
626asmlinkage long sys_clock_getres(clockid_t which_clock,
627 struct __kernel_timespec __user *tp);
628asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
629 const struct __kernel_timespec __user *rqtp,
630 struct __kernel_timespec __user *rmtp);
631asmlinkage long sys_timer_gettime32(timer_t timer_id,
632 struct old_itimerspec32 __user *setting);
633asmlinkage long sys_timer_settime32(timer_t timer_id, int flags,
634 struct old_itimerspec32 __user *new,
635 struct old_itimerspec32 __user *old);
636asmlinkage long sys_clock_settime32(clockid_t which_clock,
637 struct old_timespec32 __user *tp);
638asmlinkage long sys_clock_gettime32(clockid_t which_clock,
639 struct old_timespec32 __user *tp);
640asmlinkage long sys_clock_getres_time32(clockid_t which_clock,
641 struct old_timespec32 __user *tp);
642asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags,
643 struct old_timespec32 __user *rqtp,
644 struct old_timespec32 __user *rmtp);
645
646/* kernel/printk.c */
647asmlinkage long sys_syslog(int type, char __user *buf, int len);
648
649/* kernel/ptrace.c */
650asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
651 unsigned long data);
652/* kernel/sched/core.c */
653
654asmlinkage long sys_sched_setparam(pid_t pid,
655 struct sched_param __user *param);
656asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
657 struct sched_param __user *param);
658asmlinkage long sys_sched_getscheduler(pid_t pid);
659asmlinkage long sys_sched_getparam(pid_t pid,
660 struct sched_param __user *param);
661asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
662 unsigned long __user *user_mask_ptr);
663asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
664 unsigned long __user *user_mask_ptr);
665asmlinkage long sys_sched_yield(void);
666asmlinkage long sys_sched_get_priority_max(int policy);
667asmlinkage long sys_sched_get_priority_min(int policy);
668asmlinkage long sys_sched_rr_get_interval(pid_t pid,
669 struct __kernel_timespec __user *interval);
670asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid,
671 struct old_timespec32 __user *interval);
672
673/* kernel/signal.c */
674asmlinkage long sys_restart_syscall(void);
675asmlinkage long sys_kill(pid_t pid, int sig);
676asmlinkage long sys_tkill(pid_t pid, int sig);
677asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
678asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
679 struct sigaltstack __user *uoss);
680asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
681#ifndef CONFIG_ODD_RT_SIGACTION
682asmlinkage long sys_rt_sigaction(int,
683 const struct sigaction __user *,
684 struct sigaction __user *,
685 size_t);
686#endif
687asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
688 sigset_t __user *oset, size_t sigsetsize);
689asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
690asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
691 siginfo_t __user *uinfo,
692 const struct __kernel_timespec __user *uts,
693 size_t sigsetsize);
694asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese,
695 siginfo_t __user *uinfo,
696 const struct old_timespec32 __user *uts,
697 size_t sigsetsize);
698asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
699
700/* kernel/sys.c */
701asmlinkage long sys_setpriority(int which, int who, int niceval);
702asmlinkage long sys_getpriority(int which, int who);
703asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
704 void __user *arg);
705asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
706asmlinkage long sys_setgid(gid_t gid);
707asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
708asmlinkage long sys_setuid(uid_t uid);
709asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
710asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
711asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
712asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
713asmlinkage long sys_setfsuid(uid_t uid);
714asmlinkage long sys_setfsgid(gid_t gid);
715asmlinkage long sys_times(struct tms __user *tbuf);
716asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
717asmlinkage long sys_getpgid(pid_t pid);
718asmlinkage long sys_getsid(pid_t pid);
719asmlinkage long sys_setsid(void);
720asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
721asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
722asmlinkage long sys_newuname(struct new_utsname __user *name);
723asmlinkage long sys_sethostname(char __user *name, int len);
724asmlinkage long sys_setdomainname(char __user *name, int len);
725asmlinkage long sys_getrlimit(unsigned int resource,
726 struct rlimit __user *rlim);
727asmlinkage long sys_setrlimit(unsigned int resource,
728 struct rlimit __user *rlim);
729asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
730asmlinkage long sys_umask(int mask);
731asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
732 unsigned long arg4, unsigned long arg5);
733asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
734
735/* kernel/time.c */
736asmlinkage long sys_gettimeofday(struct timeval __user *tv,
737 struct timezone __user *tz);
738asmlinkage long sys_settimeofday(struct timeval __user *tv,
739 struct timezone __user *tz);
740asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p);
741asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p);
742
743/* kernel/timer.c */
744asmlinkage long sys_getpid(void);
745asmlinkage long sys_getppid(void);
746asmlinkage long sys_getuid(void);
747asmlinkage long sys_geteuid(void);
748asmlinkage long sys_getgid(void);
749asmlinkage long sys_getegid(void);
750asmlinkage long sys_gettid(void);
751asmlinkage long sys_sysinfo(struct sysinfo __user *info);
752
753/* ipc/mqueue.c */
754asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
755asmlinkage long sys_mq_unlink(const char __user *name);
756asmlinkage 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);
757asmlinkage 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);
758asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
759asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
760asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes,
761 char __user *u_msg_ptr,
762 unsigned int msg_len, unsigned int __user *u_msg_prio,
763 const struct old_timespec32 __user *u_abs_timeout);
764asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes,
765 const char __user *u_msg_ptr,
766 unsigned int msg_len, unsigned int msg_prio,
767 const struct old_timespec32 __user *u_abs_timeout);
768
769/* ipc/msg.c */
770asmlinkage long sys_msgget(key_t key, int msgflg);
771asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
772asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
773asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
774 size_t msgsz, long msgtyp, int msgflg);
775asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
776 size_t msgsz, int msgflg);
777
778/* ipc/sem.c */
779asmlinkage long sys_semget(key_t key, int nsems, int semflg);
780asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
781asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
782asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
783 unsigned nsops,
784 const struct __kernel_timespec __user *timeout);
785asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops,
786 unsigned nsops,
787 const struct old_timespec32 __user *timeout);
788asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
789 unsigned nsops);
790
791/* ipc/shm.c */
792asmlinkage long sys_shmget(key_t key, size_t size, int flag);
793asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
794asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
795asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
796asmlinkage long sys_shmdt(char __user *shmaddr);
797
798/* net/socket.c */
799asmlinkage long sys_socket(int, int, int);
800asmlinkage long sys_socketpair(int, int, int, int __user *);
801asmlinkage long sys_bind(int, struct sockaddr __user *, int);
802asmlinkage long sys_listen(int, int);
803asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
804asmlinkage long sys_connect(int, struct sockaddr __user *, int);
805asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
806asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
807asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
808 struct sockaddr __user *, int);
809asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
810 struct sockaddr __user *, int __user *);
811asmlinkage long sys_setsockopt(int fd, int level, int optname,
812 char __user *optval, int optlen);
813asmlinkage long sys_getsockopt(int fd, int level, int optname,
814 char __user *optval, int __user *optlen);
815asmlinkage long sys_shutdown(int, int);
816asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
817asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
818
819/* mm/filemap.c */
820asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
821
822/* mm/nommu.c, also with MMU */
823asmlinkage long sys_brk(unsigned long brk);
824asmlinkage long sys_munmap(unsigned long addr, size_t len);
825asmlinkage long sys_mremap(unsigned long addr,
826 unsigned long old_len, unsigned long new_len,
827 unsigned long flags, unsigned long new_addr);
828
829/* security/keys/keyctl.c */
830asmlinkage long sys_add_key(const char __user *_type,
831 const char __user *_description,
832 const void __user *_payload,
833 size_t plen,
834 key_serial_t destringid);
835asmlinkage long sys_request_key(const char __user *_type,
836 const char __user *_description,
837 const char __user *_callout_info,
838 key_serial_t destringid);
839asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
840 unsigned long arg4, unsigned long arg5);
841
842/* arch/example/kernel/sys_example.c */
843#ifdef CONFIG_CLONE_BACKWARDS
844asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
845 int __user *);
846#else
847#ifdef CONFIG_CLONE_BACKWARDS3
848asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
849 int __user *, unsigned long);
850#else
851asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
852 int __user *, unsigned long);
853#endif
854#endif
855asmlinkage long sys_execve(const char __user *filename,
856 const char __user *const __user *argv,
857 const char __user *const __user *envp);
858
859/* mm/fadvise.c */
860asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
861
862/* mm/, CONFIG_MMU only */
863asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
864asmlinkage long sys_swapoff(const char __user *specialfile);
865asmlinkage long sys_mprotect(unsigned long start, size_t len,
866 unsigned long prot);
867asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
868asmlinkage long sys_mlock(unsigned long start, size_t len);
869asmlinkage long sys_munlock(unsigned long start, size_t len);
870asmlinkage long sys_mlockall(int flags);
871asmlinkage long sys_munlockall(void);
872asmlinkage long sys_mincore(unsigned long start, size_t len,
873 unsigned char __user * vec);
874asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
875asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
876 unsigned long prot, unsigned long pgoff,
877 unsigned long flags);
878asmlinkage long sys_mbind(unsigned long start, unsigned long len,
879 unsigned long mode,
880 const unsigned long __user *nmask,
881 unsigned long maxnode,
882 unsigned flags);
883asmlinkage long sys_get_mempolicy(int __user *policy,
884 unsigned long __user *nmask,
885 unsigned long maxnode,
886 unsigned long addr, unsigned long flags);
887asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
888 unsigned long maxnode);
889asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
890 const unsigned long __user *from,
891 const unsigned long __user *to);
892asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
893 const void __user * __user *pages,
894 const int __user *nodes,
895 int __user *status,
896 int flags);
897
898asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
899 siginfo_t __user *uinfo);
900asmlinkage long sys_perf_event_open(
901 struct perf_event_attr __user *attr_uptr,
902 pid_t pid, int cpu, int group_fd, unsigned long flags);
903asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
904asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
905 unsigned int vlen, unsigned flags,
906 struct __kernel_timespec __user *timeout);
907asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
908 unsigned int vlen, unsigned flags,
909 struct old_timespec32 __user *timeout);
910
911asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
912 int options, struct rusage __user *ru);
913asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
914 const struct rlimit64 __user *new_rlim,
915 struct rlimit64 __user *old_rlim);
916asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
917asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
918 u64 mask, int fd,
919 const char __user *pathname);
920asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
921 struct file_handle __user *handle,
922 int __user *mnt_id, int flag);
923asmlinkage long sys_open_by_handle_at(int mountdirfd,
924 struct file_handle __user *handle,
925 int flags);
926asmlinkage long sys_clock_adjtime(clockid_t which_clock,
927 struct __kernel_timex __user *tx);
928asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
929 struct old_timex32 __user *tx);
930asmlinkage long sys_syncfs(int fd);
931asmlinkage long sys_setns(int fd, int nstype);
932asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
933 unsigned int vlen, unsigned flags);
934asmlinkage long sys_process_vm_readv(pid_t pid,
935 const struct iovec __user *lvec,
936 unsigned long liovcnt,
937 const struct iovec __user *rvec,
938 unsigned long riovcnt,
939 unsigned long flags);
940asmlinkage long sys_process_vm_writev(pid_t pid,
941 const struct iovec __user *lvec,
942 unsigned long liovcnt,
943 const struct iovec __user *rvec,
944 unsigned long riovcnt,
945 unsigned long flags);
946asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
947 unsigned long idx1, unsigned long idx2);
948asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
949asmlinkage long sys_sched_setattr(pid_t pid,
950 struct sched_attr __user *attr,
951 unsigned int flags);
952asmlinkage long sys_sched_getattr(pid_t pid,
953 struct sched_attr __user *attr,
954 unsigned int size,
955 unsigned int flags);
956asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
957 int newdfd, const char __user *newname,
958 unsigned int flags);
959asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
960 void __user *uargs);
961asmlinkage long sys_getrandom(char __user *buf, size_t count,
962 unsigned int flags);
963asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
964asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
965asmlinkage long sys_execveat(int dfd, const char __user *filename,
966 const char __user *const __user *argv,
967 const char __user *const __user *envp, int flags);
968asmlinkage long sys_userfaultfd(int flags);
969asmlinkage long sys_membarrier(int cmd, int flags);
970asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
971asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
972 int fd_out, loff_t __user *off_out,
973 size_t len, unsigned int flags);
974asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
975 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
976 rwf_t flags);
977asmlinkage long sys_pwritev2(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_pkey_mprotect(unsigned long start, size_t len,
981 unsigned long prot, int pkey);
982asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
983asmlinkage long sys_pkey_free(int pkey);
984asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
985 unsigned mask, struct statx __user *buffer);
986asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
987 int flags, uint32_t sig);
988asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
989asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
990 int to_dfd, const char __user *to_path,
991 unsigned int ms_flags);
992asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
993asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
994 const void __user *value, int aux);
995asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
996asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
997asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
998 siginfo_t __user *info,
999 unsigned int flags);
1000
1001/*
1002 * Architecture-specific system calls
1003 */
1004
1005/* arch/x86/kernel/ioport.c */
1006asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
1007
1008/* pciconfig: alpha, arm, arm64, ia64, sparc */
1009asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
1010 unsigned long off, unsigned long len,
1011 void __user *buf);
1012asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
1013 unsigned long off, unsigned long len,
1014 void __user *buf);
1015asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
1016
1017/* powerpc */
1018asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
1019 __u32 __user *ustatus);
1020asmlinkage long sys_spu_create(const char __user *name,
1021 unsigned int flags, umode_t mode, int fd);
1022
1023
1024/*
1025 * Deprecated system calls which are still defined in
1026 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
1027 */
1028
1029/* __ARCH_WANT_SYSCALL_NO_AT */
1030asmlinkage long sys_open(const char __user *filename,
1031 int flags, umode_t mode);
1032asmlinkage long sys_link(const char __user *oldname,
1033 const char __user *newname);
1034asmlinkage long sys_unlink(const char __user *pathname);
1035asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
1036 unsigned dev);
1037asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
1038asmlinkage long sys_chown(const char __user *filename,
1039 uid_t user, gid_t group);
1040asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
1041asmlinkage long sys_rmdir(const char __user *pathname);
1042asmlinkage long sys_lchown(const char __user *filename,
1043 uid_t user, gid_t group);
1044asmlinkage long sys_access(const char __user *filename, int mode);
1045asmlinkage long sys_rename(const char __user *oldname,
1046 const char __user *newname);
1047asmlinkage long sys_symlink(const char __user *old, const char __user *new);
1048#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
1049asmlinkage long sys_stat64(const char __user *filename,
1050 struct stat64 __user *statbuf);
1051asmlinkage long sys_lstat64(const char __user *filename,
1052 struct stat64 __user *statbuf);
1053#endif
1054
1055/* __ARCH_WANT_SYSCALL_NO_FLAGS */
1056asmlinkage long sys_pipe(int __user *fildes);
1057asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
1058asmlinkage long sys_epoll_create(int size);
1059asmlinkage long sys_inotify_init(void);
1060asmlinkage long sys_eventfd(unsigned int count);
1061asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
1062
1063/* __ARCH_WANT_SYSCALL_OFF_T */
1064asmlinkage long sys_sendfile(int out_fd, int in_fd,
1065 off_t __user *offset, size_t count);
1066asmlinkage long sys_newstat(const char __user *filename,
1067 struct stat __user *statbuf);
1068asmlinkage long sys_newlstat(const char __user *filename,
1069 struct stat __user *statbuf);
1070asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
1071
1072/* __ARCH_WANT_SYSCALL_DEPRECATED */
1073asmlinkage long sys_alarm(unsigned int seconds);
1074asmlinkage long sys_getpgrp(void);
1075asmlinkage long sys_pause(void);
1076asmlinkage long sys_time(time_t __user *tloc);
1077asmlinkage long sys_time32(old_time32_t __user *tloc);
1078#ifdef __ARCH_WANT_SYS_UTIME
1079asmlinkage long sys_utime(char __user *filename,
1080 struct utimbuf __user *times);
1081asmlinkage long sys_utimes(char __user *filename,
1082 struct timeval __user *utimes);
1083asmlinkage long sys_futimesat(int dfd, const char __user *filename,
1084 struct timeval __user *utimes);
1085#endif
1086asmlinkage long sys_futimesat_time32(unsigned int dfd,
1087 const char __user *filename,
1088 struct old_timeval32 __user *t);
1089asmlinkage long sys_utime32(const char __user *filename,
1090 struct old_utimbuf32 __user *t);
1091asmlinkage long sys_utimes_time32(const char __user *filename,
1092 struct old_timeval32 __user *t);
1093asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
1094asmlinkage long sys_getdents(unsigned int fd,
1095 struct linux_dirent __user *dirent,
1096 unsigned int count);
1097asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
1098 fd_set __user *exp, struct timeval __user *tvp);
1099asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
1100 int timeout);
1101asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
1102 int maxevents, int timeout);
1103asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
1104asmlinkage long sys_vfork(void);
1105asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
1106asmlinkage long sys_send(int, void __user *, size_t, unsigned);
1107asmlinkage long sys_bdflush(int func, long data);
1108asmlinkage long sys_oldumount(char __user *name);
1109asmlinkage long sys_uselib(const char __user *library);
1110asmlinkage long sys_sysctl(struct __sysctl_args __user *args);
1111asmlinkage long sys_sysfs(int option,
1112 unsigned long arg1, unsigned long arg2);
1113asmlinkage long sys_fork(void);
1114
1115/* obsolete: kernel/time/time.c */
1116asmlinkage long sys_stime(time_t __user *tptr);
1117asmlinkage long sys_stime32(old_time32_t __user *tptr);
1118
1119/* obsolete: kernel/signal.c */
1120asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1121asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1122 old_sigset_t __user *oset);
1123#ifdef CONFIG_OLD_SIGSUSPEND
1124asmlinkage long sys_sigsuspend(old_sigset_t mask);
1125#endif
1126
1127#ifdef CONFIG_OLD_SIGSUSPEND3
1128asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1129#endif
1130
1131#ifdef CONFIG_OLD_SIGACTION
1132asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1133 struct old_sigaction __user *);
1134#endif
1135asmlinkage long sys_sgetmask(void);
1136asmlinkage long sys_ssetmask(int newmask);
1137asmlinkage long sys_signal(int sig, __sighandler_t handler);
1138
1139/* obsolete: kernel/sched/core.c */
1140asmlinkage long sys_nice(int increment);
1141
1142/* obsolete: kernel/kexec_file.c */
1143asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1144 unsigned long cmdline_len,
1145 const char __user *cmdline_ptr,
1146 unsigned long flags);
1147
1148/* obsolete: kernel/exit.c */
1149asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1150
1151/* obsolete: kernel/uid16.c */
1152#ifdef CONFIG_HAVE_UID16
1153asmlinkage long sys_chown16(const char __user *filename,
1154 old_uid_t user, old_gid_t group);
1155asmlinkage long sys_lchown16(const char __user *filename,
1156 old_uid_t user, old_gid_t group);
1157asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1158asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1159asmlinkage long sys_setgid16(old_gid_t gid);
1160asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1161asmlinkage long sys_setuid16(old_uid_t uid);
1162asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1163asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1164 old_uid_t __user *euid, old_uid_t __user *suid);
1165asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1166asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1167 old_gid_t __user *egid, old_gid_t __user *sgid);
1168asmlinkage long sys_setfsuid16(old_uid_t uid);
1169asmlinkage long sys_setfsgid16(old_gid_t gid);
1170asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1171asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1172asmlinkage long sys_getuid16(void);
1173asmlinkage long sys_geteuid16(void);
1174asmlinkage long sys_getgid16(void);
1175asmlinkage long sys_getegid16(void);
1176#endif
1177
1178/* obsolete: net/socket.c */
1179asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1180
1181/* obsolete: fs/stat.c */
1182asmlinkage long sys_stat(const char __user *filename,
1183 struct __old_kernel_stat __user *statbuf);
1184asmlinkage long sys_lstat(const char __user *filename,
1185 struct __old_kernel_stat __user *statbuf);
1186asmlinkage long sys_fstat(unsigned int fd,
1187 struct __old_kernel_stat __user *statbuf);
1188asmlinkage long sys_readlink(const char __user *path,
1189 char __user *buf, int bufsiz);
1190
1191/* obsolete: fs/select.c */
1192asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1193
1194/* obsolete: fs/readdir.c */
1195asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1196
1197/* obsolete: kernel/sys.c */
1198asmlinkage long sys_gethostname(char __user *name, int len);
1199asmlinkage long sys_uname(struct old_utsname __user *);
1200asmlinkage long sys_olduname(struct oldold_utsname __user *);
1201#ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1202asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1203#endif
1204
1205/* obsolete: ipc */
1206asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1207 unsigned long third, void __user *ptr, long fifth);
1208
1209/* obsolete: mm/ */
1210asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1211 unsigned long prot, unsigned long flags,
1212 unsigned long fd, unsigned long pgoff);
1213asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1214
1215
1216/*
1217 * Not a real system call, but a placeholder for syscalls which are
1218 * not implemented -- see kernel/sys_ni.c
1219 */
1220asmlinkage long sys_ni_syscall(void);
1221
1222#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1223
1224
1225/*
1226 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1227 * Instead, use one of the functions which work equivalently, such as
1228 * the ksys_xyzyyz() functions prototyped below.
1229 */
1230
1231int ksys_mount(char __user *dev_name, char __user *dir_name, char __user *type,
1232 unsigned long flags, void __user *data);
1233int ksys_umount(char __user *name, int flags);
1234int ksys_dup(unsigned int fildes);
1235int ksys_chroot(const char __user *filename);
1236ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1237int ksys_chdir(const char __user *filename);
1238int ksys_fchmod(unsigned int fd, umode_t mode);
1239int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1240int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent,
1241 unsigned int count);
1242int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
1243off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence);
1244ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1245void ksys_sync(void);
1246int ksys_unshare(unsigned long unshare_flags);
1247int ksys_setsid(void);
1248int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1249 unsigned int flags);
1250ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1251 loff_t pos);
1252ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1253 size_t count, loff_t pos);
1254int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1255#ifdef CONFIG_ADVISE_SYSCALLS
1256int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1257#else
1258static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1259 int advice)
1260{
1261 return -EINVAL;
1262}
1263#endif
1264unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1265 unsigned long prot, unsigned long flags,
1266 unsigned long fd, unsigned long pgoff);
1267ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1268int ksys_ipc(unsigned int call, int first, unsigned long second,
1269 unsigned long third, void __user * ptr, long fifth);
1270int compat_ksys_ipc(u32 call, int first, int second,
1271 u32 third, u32 ptr, u32 fifth);
1272
1273/*
1274 * The following kernel syscall equivalents are just wrappers to fs-internal
1275 * functions. Therefore, provide stubs to be inlined at the callsites.
1276 */
1277extern long do_unlinkat(int dfd, struct filename *name);
1278
1279static inline long ksys_unlink(const char __user *pathname)
1280{
1281 return do_unlinkat(AT_FDCWD, getname(pathname));
1282}
1283
1284extern long do_rmdir(int dfd, const char __user *pathname);
1285
1286static inline long ksys_rmdir(const char __user *pathname)
1287{
1288 return do_rmdir(AT_FDCWD, pathname);
1289}
1290
1291extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode);
1292
1293static inline long ksys_mkdir(const char __user *pathname, umode_t mode)
1294{
1295 return do_mkdirat(AT_FDCWD, pathname, mode);
1296}
1297
1298extern long do_symlinkat(const char __user *oldname, int newdfd,
1299 const char __user *newname);
1300
1301static inline long ksys_symlink(const char __user *oldname,
1302 const char __user *newname)
1303{
1304 return do_symlinkat(oldname, AT_FDCWD, newname);
1305}
1306
1307extern long do_mknodat(int dfd, const char __user *filename, umode_t mode,
1308 unsigned int dev);
1309
1310static inline long ksys_mknod(const char __user *filename, umode_t mode,
1311 unsigned int dev)
1312{
1313 return do_mknodat(AT_FDCWD, filename, mode, dev);
1314}
1315
1316extern int do_linkat(int olddfd, const char __user *oldname, int newdfd,
1317 const char __user *newname, int flags);
1318
1319static inline long ksys_link(const char __user *oldname,
1320 const char __user *newname)
1321{
1322 return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0);
1323}
1324
1325extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode);
1326
1327static inline int ksys_chmod(const char __user *filename, umode_t mode)
1328{
1329 return do_fchmodat(AT_FDCWD, filename, mode);
1330}
1331
1332extern long do_faccessat(int dfd, const char __user *filename, int mode);
1333
1334static inline long ksys_access(const char __user *filename, int mode)
1335{
1336 return do_faccessat(AT_FDCWD, filename, mode);
1337}
1338
1339extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1340 gid_t group, int flag);
1341
1342static inline long ksys_chown(const char __user *filename, uid_t user,
1343 gid_t group)
1344{
1345 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1346}
1347
1348static inline long ksys_lchown(const char __user *filename, uid_t user,
1349 gid_t group)
1350{
1351 return do_fchownat(AT_FDCWD, filename, user, group,
1352 AT_SYMLINK_NOFOLLOW);
1353}
1354
1355extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1356
1357static inline long ksys_ftruncate(unsigned int fd, unsigned long length)
1358{
1359 return do_sys_ftruncate(fd, length, 1);
1360}
1361
1362extern int __close_fd(struct files_struct *files, unsigned int fd);
1363
1364/*
1365 * In contrast to sys_close(), this stub does not check whether the syscall
1366 * should or should not be restarted, but returns the raw error codes from
1367 * __close_fd().
1368 */
1369static inline int ksys_close(unsigned int fd)
1370{
1371 return __close_fd(current->files, fd);
1372}
1373
1374extern long do_sys_open(int dfd, const char __user *filename, int flags,
1375 umode_t mode);
1376
1377static inline long ksys_open(const char __user *filename, int flags,
1378 umode_t mode)
1379{
1380 if (force_o_largefile())
1381 flags |= O_LARGEFILE;
1382 return do_sys_open(AT_FDCWD, filename, flags, mode);
1383}
1384
1385extern long do_sys_truncate(const char __user *pathname, loff_t length);
1386
1387static inline long ksys_truncate(const char __user *pathname, loff_t length)
1388{
1389 return do_sys_truncate(pathname, length);
1390}
1391
1392static inline unsigned int ksys_personality(unsigned int personality)
1393{
1394 unsigned int old = current->personality;
1395
1396 if (personality != 0xffffffff)
1397 set_personality(personality);
1398
1399 return old;
1400}
1401
1402#endif