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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 __kernel_old_itimerval;
20struct kexec_segment;
21struct linux_dirent;
22struct linux_dirent64;
23struct list_head;
24struct mmap_arg_struct;
25struct msgbuf;
26struct user_msghdr;
27struct mmsghdr;
28struct msqid_ds;
29struct new_utsname;
30struct nfsctl_arg;
31struct __old_kernel_stat;
32struct oldold_utsname;
33struct old_utsname;
34struct pollfd;
35struct rlimit;
36struct rlimit64;
37struct rusage;
38struct sched_param;
39struct sched_attr;
40struct sel_arg_struct;
41struct semaphore;
42struct sembuf;
43struct shmid_ds;
44struct sockaddr;
45struct stat;
46struct stat64;
47struct statfs;
48struct statfs64;
49struct statx;
50struct sysinfo;
51struct timespec;
52struct __kernel_old_timeval;
53struct __kernel_timex;
54struct timezone;
55struct tms;
56struct utimbuf;
57struct mq_attr;
58struct compat_stat;
59struct old_timeval32;
60struct robust_list_head;
61struct futex_waitv;
62struct getcpu_cache;
63struct old_linux_dirent;
64struct perf_event_attr;
65struct file_handle;
66struct sigaltstack;
67struct rseq;
68union bpf_attr;
69struct io_uring_params;
70struct clone_args;
71struct open_how;
72struct mount_attr;
73struct landlock_ruleset_attr;
74struct lsm_ctx;
75enum landlock_rule_type;
76struct cachestat_range;
77struct cachestat;
78struct statmount;
79struct mnt_id_req;
80
81#include <linux/types.h>
82#include <linux/aio_abi.h>
83#include <linux/capability.h>
84#include <linux/signal.h>
85#include <linux/list.h>
86#include <linux/bug.h>
87#include <linux/sem.h>
88#include <asm/siginfo.h>
89#include <linux/unistd.h>
90#include <linux/quota.h>
91#include <linux/key.h>
92#include <linux/personality.h>
93#include <trace/syscall.h>
94
95#ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
96/*
97 * It may be useful for an architecture to override the definitions of the
98 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
99 * different calling convention for syscalls. To allow for that, the prototypes
100 * for the sys_*() functions below will *not* be included if
101 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
102 */
103#include <asm/syscall_wrapper.h>
104#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
105
106/*
107 * __MAP - apply a macro to syscall arguments
108 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
109 * m(t1, a1), m(t2, a2), ..., m(tn, an)
110 * The first argument must be equal to the amount of type/name
111 * pairs given. Note that this list of pairs (i.e. the arguments
112 * of __MAP starting at the third one) is in the same format as
113 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
114 */
115#define __MAP0(m,...)
116#define __MAP1(m,t,a,...) m(t,a)
117#define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
118#define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
119#define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
120#define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
121#define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
122#define __MAP(n,...) __MAP##n(__VA_ARGS__)
123
124#define __SC_DECL(t, a) t a
125#define __TYPE_AS(t, v) __same_type((__force t)0, v)
126#define __TYPE_IS_L(t) (__TYPE_AS(t, 0L))
127#define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
128#define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
129#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
130#define __SC_CAST(t, a) (__force t) a
131#define __SC_ARGS(t, a) a
132#define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
133
134#ifdef CONFIG_FTRACE_SYSCALLS
135#define __SC_STR_ADECL(t, a) #a
136#define __SC_STR_TDECL(t, a) #t
137
138extern struct trace_event_class event_class_syscall_enter;
139extern struct trace_event_class event_class_syscall_exit;
140extern struct trace_event_functions enter_syscall_print_funcs;
141extern struct trace_event_functions exit_syscall_print_funcs;
142
143#define SYSCALL_TRACE_ENTER_EVENT(sname) \
144 static struct syscall_metadata __syscall_meta_##sname; \
145 static struct trace_event_call __used \
146 event_enter_##sname = { \
147 .class = &event_class_syscall_enter, \
148 { \
149 .name = "sys_enter"#sname, \
150 }, \
151 .event.funcs = &enter_syscall_print_funcs, \
152 .data = (void *)&__syscall_meta_##sname,\
153 .flags = TRACE_EVENT_FL_CAP_ANY, \
154 }; \
155 static struct trace_event_call __used \
156 __section("_ftrace_events") \
157 *__event_enter_##sname = &event_enter_##sname;
158
159#define SYSCALL_TRACE_EXIT_EVENT(sname) \
160 static struct syscall_metadata __syscall_meta_##sname; \
161 static struct trace_event_call __used \
162 event_exit_##sname = { \
163 .class = &event_class_syscall_exit, \
164 { \
165 .name = "sys_exit"#sname, \
166 }, \
167 .event.funcs = &exit_syscall_print_funcs, \
168 .data = (void *)&__syscall_meta_##sname,\
169 .flags = TRACE_EVENT_FL_CAP_ANY, \
170 }; \
171 static struct trace_event_call __used \
172 __section("_ftrace_events") \
173 *__event_exit_##sname = &event_exit_##sname;
174
175#define SYSCALL_METADATA(sname, nb, ...) \
176 static const char *types_##sname[] = { \
177 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
178 }; \
179 static const char *args_##sname[] = { \
180 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
181 }; \
182 SYSCALL_TRACE_ENTER_EVENT(sname); \
183 SYSCALL_TRACE_EXIT_EVENT(sname); \
184 static struct syscall_metadata __used \
185 __syscall_meta_##sname = { \
186 .name = "sys"#sname, \
187 .syscall_nr = -1, /* Filled in at boot */ \
188 .nb_args = nb, \
189 .types = nb ? types_##sname : NULL, \
190 .args = nb ? args_##sname : NULL, \
191 .enter_event = &event_enter_##sname, \
192 .exit_event = &event_exit_##sname, \
193 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
194 }; \
195 static struct syscall_metadata __used \
196 __section("__syscalls_metadata") \
197 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
198
199static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
200{
201 return tp_event->class == &event_class_syscall_enter ||
202 tp_event->class == &event_class_syscall_exit;
203}
204
205#else
206#define SYSCALL_METADATA(sname, nb, ...)
207
208static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
209{
210 return 0;
211}
212#endif
213
214#ifndef SYSCALL_DEFINE0
215#define SYSCALL_DEFINE0(sname) \
216 SYSCALL_METADATA(_##sname, 0); \
217 asmlinkage long sys_##sname(void); \
218 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
219 asmlinkage long sys_##sname(void)
220#endif /* SYSCALL_DEFINE0 */
221
222#define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
223#define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
224#define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
225#define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
226#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
227#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
228
229#define SYSCALL_DEFINE_MAXARGS 6
230
231#define SYSCALL_DEFINEx(x, sname, ...) \
232 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
233 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
234
235#define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
236
237/*
238 * The asmlinkage stub is aliased to a function named __se_sys_*() which
239 * sign-extends 32-bit ints to longs whenever needed. The actual work is
240 * done within __do_sys_*().
241 */
242#ifndef __SYSCALL_DEFINEx
243#define __SYSCALL_DEFINEx(x, name, ...) \
244 __diag_push(); \
245 __diag_ignore(GCC, 8, "-Wattribute-alias", \
246 "Type aliasing is used to sanitize syscall arguments");\
247 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
248 __attribute__((alias(__stringify(__se_sys##name)))); \
249 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
250 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
251 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
252 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
253 { \
254 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
255 __MAP(x,__SC_TEST,__VA_ARGS__); \
256 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
257 return ret; \
258 } \
259 __diag_pop(); \
260 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
261#endif /* __SYSCALL_DEFINEx */
262
263/* For split 64-bit arguments on 32-bit architectures */
264#ifdef __LITTLE_ENDIAN
265#define SC_ARG64(name) u32, name##_lo, u32, name##_hi
266#else
267#define SC_ARG64(name) u32, name##_hi, u32, name##_lo
268#endif
269#define SC_VAL64(type, name) ((type) name##_hi << 32 | name##_lo)
270
271#ifdef CONFIG_COMPAT
272#define SYSCALL32_DEFINE0 COMPAT_SYSCALL_DEFINE0
273#define SYSCALL32_DEFINE1 COMPAT_SYSCALL_DEFINE1
274#define SYSCALL32_DEFINE2 COMPAT_SYSCALL_DEFINE2
275#define SYSCALL32_DEFINE3 COMPAT_SYSCALL_DEFINE3
276#define SYSCALL32_DEFINE4 COMPAT_SYSCALL_DEFINE4
277#define SYSCALL32_DEFINE5 COMPAT_SYSCALL_DEFINE5
278#define SYSCALL32_DEFINE6 COMPAT_SYSCALL_DEFINE6
279#else
280#define SYSCALL32_DEFINE0 SYSCALL_DEFINE0
281#define SYSCALL32_DEFINE1 SYSCALL_DEFINE1
282#define SYSCALL32_DEFINE2 SYSCALL_DEFINE2
283#define SYSCALL32_DEFINE3 SYSCALL_DEFINE3
284#define SYSCALL32_DEFINE4 SYSCALL_DEFINE4
285#define SYSCALL32_DEFINE5 SYSCALL_DEFINE5
286#define SYSCALL32_DEFINE6 SYSCALL_DEFINE6
287#endif
288
289/*
290 * These syscall function prototypes are kept in the same order as
291 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
292 * followed by deprecated or obsolete system calls.
293 *
294 * Please note that these prototypes here are only provided for information
295 * purposes, for static analysis, and for linking from the syscall table.
296 * These functions should not be called elsewhere from kernel code.
297 *
298 * As the syscall calling convention may be different from the default
299 * for architectures overriding the syscall calling convention, do not
300 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
301 */
302#ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
303asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
304asmlinkage long sys_io_destroy(aio_context_t ctx);
305asmlinkage long sys_io_submit(aio_context_t, long,
306 struct iocb __user * __user *);
307asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
308 struct io_event __user *result);
309asmlinkage long sys_io_getevents(aio_context_t ctx_id,
310 long min_nr,
311 long nr,
312 struct io_event __user *events,
313 struct __kernel_timespec __user *timeout);
314asmlinkage long sys_io_getevents_time32(__u32 ctx_id,
315 __s32 min_nr,
316 __s32 nr,
317 struct io_event __user *events,
318 struct old_timespec32 __user *timeout);
319asmlinkage long sys_io_pgetevents(aio_context_t ctx_id,
320 long min_nr,
321 long nr,
322 struct io_event __user *events,
323 struct __kernel_timespec __user *timeout,
324 const struct __aio_sigset *sig);
325asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id,
326 long min_nr,
327 long nr,
328 struct io_event __user *events,
329 struct old_timespec32 __user *timeout,
330 const struct __aio_sigset *sig);
331asmlinkage long sys_io_uring_setup(u32 entries,
332 struct io_uring_params __user *p);
333asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit,
334 u32 min_complete, u32 flags,
335 const void __user *argp, size_t argsz);
336asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op,
337 void __user *arg, unsigned int nr_args);
338asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
339 const void __user *value, size_t size, int flags);
340asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
341 const void __user *value, size_t size, int flags);
342asmlinkage long sys_fsetxattr(int fd, const char __user *name,
343 const void __user *value, size_t size, int flags);
344asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
345 void __user *value, size_t size);
346asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
347 void __user *value, size_t size);
348asmlinkage long sys_fgetxattr(int fd, const char __user *name,
349 void __user *value, size_t size);
350asmlinkage long sys_listxattr(const char __user *path, char __user *list,
351 size_t size);
352asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
353 size_t size);
354asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
355asmlinkage long sys_removexattr(const char __user *path,
356 const char __user *name);
357asmlinkage long sys_lremovexattr(const char __user *path,
358 const char __user *name);
359asmlinkage long sys_fremovexattr(int fd, const char __user *name);
360asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
361asmlinkage long sys_eventfd2(unsigned int count, int flags);
362asmlinkage long sys_epoll_create1(int flags);
363asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
364 struct epoll_event __user *event);
365asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
366 int maxevents, int timeout,
367 const sigset_t __user *sigmask,
368 size_t sigsetsize);
369asmlinkage long sys_epoll_pwait2(int epfd, struct epoll_event __user *events,
370 int maxevents,
371 const struct __kernel_timespec __user *timeout,
372 const sigset_t __user *sigmask,
373 size_t sigsetsize);
374asmlinkage long sys_dup(unsigned int fildes);
375asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
376asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
377#if BITS_PER_LONG == 32
378asmlinkage long sys_fcntl64(unsigned int fd,
379 unsigned int cmd, unsigned long arg);
380#endif
381asmlinkage long sys_inotify_init1(int flags);
382asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
383 u32 mask);
384asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
385asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
386 unsigned long arg);
387asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
388asmlinkage long sys_ioprio_get(int which, int who);
389asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
390asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
391 unsigned dev);
392asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
393asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
394asmlinkage long sys_symlinkat(const char __user * oldname,
395 int newdfd, const char __user * newname);
396asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
397 int newdfd, const char __user *newname, int flags);
398asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
399 int newdfd, const char __user * newname);
400asmlinkage long sys_umount(char __user *name, int flags);
401asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
402 char __user *type, unsigned long flags,
403 void __user *data);
404asmlinkage long sys_pivot_root(const char __user *new_root,
405 const char __user *put_old);
406asmlinkage long sys_statfs(const char __user * path,
407 struct statfs __user *buf);
408asmlinkage long sys_statfs64(const char __user *path, size_t sz,
409 struct statfs64 __user *buf);
410asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
411asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
412 struct statfs64 __user *buf);
413asmlinkage long sys_statmount(const struct mnt_id_req __user *req,
414 struct statmount __user *buf, size_t bufsize,
415 unsigned int flags);
416asmlinkage long sys_listmount(const struct mnt_id_req __user *req,
417 u64 __user *mnt_ids, size_t nr_mnt_ids,
418 unsigned int flags);
419asmlinkage long sys_truncate(const char __user *path, long length);
420asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
421#if BITS_PER_LONG == 32
422asmlinkage long sys_truncate64(const char __user *path, loff_t length);
423asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
424#endif
425asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
426asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
427asmlinkage long sys_faccessat2(int dfd, const char __user *filename, int mode,
428 int flags);
429asmlinkage long sys_chdir(const char __user *filename);
430asmlinkage long sys_fchdir(unsigned int fd);
431asmlinkage long sys_chroot(const char __user *filename);
432asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
433asmlinkage long sys_fchmodat(int dfd, const char __user *filename,
434 umode_t mode);
435asmlinkage long sys_fchmodat2(int dfd, const char __user *filename,
436 umode_t mode, unsigned int flags);
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_openat2(int dfd, const char __user *filename,
443 struct open_how *how, size_t size);
444asmlinkage long sys_close(unsigned int fd);
445asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd,
446 unsigned int flags);
447asmlinkage long sys_vhangup(void);
448asmlinkage long sys_pipe2(int __user *fildes, int flags);
449asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
450 qid_t id, void __user *addr);
451asmlinkage long sys_quotactl_fd(unsigned int fd, unsigned int cmd, qid_t id,
452 void __user *addr);
453asmlinkage long sys_getdents64(unsigned int fd,
454 struct linux_dirent64 __user *dirent,
455 unsigned int count);
456asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
457 unsigned long offset_low, loff_t __user *result,
458 unsigned int whence);
459asmlinkage long sys_lseek(unsigned int fd, off_t offset,
460 unsigned int whence);
461asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
462asmlinkage long sys_write(unsigned int fd, const char __user *buf,
463 size_t count);
464asmlinkage long sys_readv(unsigned long fd,
465 const struct iovec __user *vec,
466 unsigned long vlen);
467asmlinkage long sys_writev(unsigned long fd,
468 const struct iovec __user *vec,
469 unsigned long vlen);
470asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
471 size_t count, loff_t pos);
472asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
473 size_t count, loff_t pos);
474asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
475 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
476asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
477 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
478asmlinkage long sys_sendfile64(int out_fd, int in_fd,
479 loff_t __user *offset, size_t count);
480asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
481 fd_set __user *, struct __kernel_timespec __user *,
482 void __user *);
483asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *,
484 fd_set __user *, struct old_timespec32 __user *,
485 void __user *);
486asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
487 struct __kernel_timespec __user *, const sigset_t __user *,
488 size_t);
489asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int,
490 struct old_timespec32 __user *, const sigset_t __user *,
491 size_t);
492asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
493asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
494 unsigned long nr_segs, unsigned int flags);
495asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
496 int fd_out, loff_t __user *off_out,
497 size_t len, unsigned int flags);
498asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
499asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
500 int bufsiz);
501asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
502 struct stat __user *statbuf, int flag);
503asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
504#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
505asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
506asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
507 struct stat64 __user *statbuf, int flag);
508#endif
509asmlinkage long sys_sync(void);
510asmlinkage long sys_fsync(unsigned int fd);
511asmlinkage long sys_fdatasync(unsigned int fd);
512asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
513 loff_t offset, loff_t nbytes);
514asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
515 unsigned int flags);
516asmlinkage long sys_timerfd_create(int clockid, int flags);
517asmlinkage long sys_timerfd_settime(int ufd, int flags,
518 const struct __kernel_itimerspec __user *utmr,
519 struct __kernel_itimerspec __user *otmr);
520asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
521asmlinkage long sys_timerfd_gettime32(int ufd,
522 struct old_itimerspec32 __user *otmr);
523asmlinkage long sys_timerfd_settime32(int ufd, int flags,
524 const struct old_itimerspec32 __user *utmr,
525 struct old_itimerspec32 __user *otmr);
526asmlinkage long sys_utimensat(int dfd, const char __user *filename,
527 struct __kernel_timespec __user *utimes,
528 int flags);
529asmlinkage long sys_utimensat_time32(unsigned int dfd,
530 const char __user *filename,
531 struct old_timespec32 __user *t, int flags);
532asmlinkage long sys_acct(const char __user *name);
533asmlinkage long sys_capget(cap_user_header_t header,
534 cap_user_data_t dataptr);
535asmlinkage long sys_capset(cap_user_header_t header,
536 const cap_user_data_t data);
537asmlinkage long sys_personality(unsigned int personality);
538asmlinkage long sys_exit(int error_code);
539asmlinkage long sys_exit_group(int error_code);
540asmlinkage long sys_waitid(int which, pid_t pid,
541 struct siginfo __user *infop,
542 int options, struct rusage __user *ru);
543asmlinkage long sys_set_tid_address(int __user *tidptr);
544asmlinkage long sys_unshare(unsigned long unshare_flags);
545asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
546 const struct __kernel_timespec __user *utime,
547 u32 __user *uaddr2, u32 val3);
548asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val,
549 const struct old_timespec32 __user *utime,
550 u32 __user *uaddr2, u32 val3);
551asmlinkage long sys_get_robust_list(int pid,
552 struct robust_list_head __user * __user *head_ptr,
553 size_t __user *len_ptr);
554asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
555 size_t len);
556
557asmlinkage long sys_futex_waitv(struct futex_waitv *waiters,
558 unsigned int nr_futexes, unsigned int flags,
559 struct __kernel_timespec __user *timeout, clockid_t clockid);
560
561asmlinkage long sys_futex_wake(void __user *uaddr, unsigned long mask, int nr, unsigned int flags);
562
563asmlinkage long sys_futex_wait(void __user *uaddr, unsigned long val, unsigned long mask,
564 unsigned int flags, struct __kernel_timespec __user *timespec,
565 clockid_t clockid);
566
567asmlinkage long sys_futex_requeue(struct futex_waitv __user *waiters,
568 unsigned int flags, int nr_wake, int nr_requeue);
569
570asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
571 struct __kernel_timespec __user *rmtp);
572asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp,
573 struct old_timespec32 __user *rmtp);
574asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value);
575asmlinkage long sys_setitimer(int which,
576 struct __kernel_old_itimerval __user *value,
577 struct __kernel_old_itimerval __user *ovalue);
578asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
579 struct kexec_segment __user *segments,
580 unsigned long flags);
581asmlinkage long sys_init_module(void __user *umod, unsigned long len,
582 const char __user *uargs);
583asmlinkage long sys_delete_module(const char __user *name_user,
584 unsigned int flags);
585asmlinkage long sys_timer_create(clockid_t which_clock,
586 struct sigevent __user *timer_event_spec,
587 timer_t __user * created_timer_id);
588asmlinkage long sys_timer_gettime(timer_t timer_id,
589 struct __kernel_itimerspec __user *setting);
590asmlinkage long sys_timer_getoverrun(timer_t timer_id);
591asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
592 const struct __kernel_itimerspec __user *new_setting,
593 struct __kernel_itimerspec __user *old_setting);
594asmlinkage long sys_timer_delete(timer_t timer_id);
595asmlinkage long sys_clock_settime(clockid_t which_clock,
596 const struct __kernel_timespec __user *tp);
597asmlinkage long sys_clock_gettime(clockid_t which_clock,
598 struct __kernel_timespec __user *tp);
599asmlinkage long sys_clock_getres(clockid_t which_clock,
600 struct __kernel_timespec __user *tp);
601asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
602 const struct __kernel_timespec __user *rqtp,
603 struct __kernel_timespec __user *rmtp);
604asmlinkage long sys_timer_gettime32(timer_t timer_id,
605 struct old_itimerspec32 __user *setting);
606asmlinkage long sys_timer_settime32(timer_t timer_id, int flags,
607 struct old_itimerspec32 __user *new,
608 struct old_itimerspec32 __user *old);
609asmlinkage long sys_clock_settime32(clockid_t which_clock,
610 struct old_timespec32 __user *tp);
611asmlinkage long sys_clock_gettime32(clockid_t which_clock,
612 struct old_timespec32 __user *tp);
613asmlinkage long sys_clock_getres_time32(clockid_t which_clock,
614 struct old_timespec32 __user *tp);
615asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags,
616 struct old_timespec32 __user *rqtp,
617 struct old_timespec32 __user *rmtp);
618asmlinkage long sys_syslog(int type, char __user *buf, int len);
619asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
620 unsigned long data);
621asmlinkage long sys_sched_setparam(pid_t pid,
622 struct sched_param __user *param);
623asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
624 struct sched_param __user *param);
625asmlinkage long sys_sched_getscheduler(pid_t pid);
626asmlinkage long sys_sched_getparam(pid_t pid,
627 struct sched_param __user *param);
628asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
629 unsigned long __user *user_mask_ptr);
630asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
631 unsigned long __user *user_mask_ptr);
632asmlinkage long sys_sched_yield(void);
633asmlinkage long sys_sched_get_priority_max(int policy);
634asmlinkage long sys_sched_get_priority_min(int policy);
635asmlinkage long sys_sched_rr_get_interval(pid_t pid,
636 struct __kernel_timespec __user *interval);
637asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid,
638 struct old_timespec32 __user *interval);
639asmlinkage long sys_restart_syscall(void);
640asmlinkage long sys_kill(pid_t pid, int sig);
641asmlinkage long sys_tkill(pid_t pid, int sig);
642asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
643asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
644 struct sigaltstack __user *uoss);
645asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
646#ifndef CONFIG_ODD_RT_SIGACTION
647asmlinkage long sys_rt_sigaction(int,
648 const struct sigaction __user *,
649 struct sigaction __user *,
650 size_t);
651#endif
652asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
653 sigset_t __user *oset, size_t sigsetsize);
654asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
655asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
656 siginfo_t __user *uinfo,
657 const struct __kernel_timespec __user *uts,
658 size_t sigsetsize);
659asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese,
660 siginfo_t __user *uinfo,
661 const struct old_timespec32 __user *uts,
662 size_t sigsetsize);
663asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
664asmlinkage long sys_setpriority(int which, int who, int niceval);
665asmlinkage long sys_getpriority(int which, int who);
666asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
667 void __user *arg);
668asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
669asmlinkage long sys_setgid(gid_t gid);
670asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
671asmlinkage long sys_setuid(uid_t uid);
672asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
673asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
674asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
675asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
676asmlinkage long sys_setfsuid(uid_t uid);
677asmlinkage long sys_setfsgid(gid_t gid);
678asmlinkage long sys_times(struct tms __user *tbuf);
679asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
680asmlinkage long sys_getpgid(pid_t pid);
681asmlinkage long sys_getsid(pid_t pid);
682asmlinkage long sys_setsid(void);
683asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
684asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
685asmlinkage long sys_newuname(struct new_utsname __user *name);
686asmlinkage long sys_sethostname(char __user *name, int len);
687asmlinkage long sys_setdomainname(char __user *name, int len);
688asmlinkage long sys_getrlimit(unsigned int resource,
689 struct rlimit __user *rlim);
690asmlinkage long sys_setrlimit(unsigned int resource,
691 struct rlimit __user *rlim);
692asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
693asmlinkage long sys_umask(int mask);
694asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
695 unsigned long arg4, unsigned long arg5);
696asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
697asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv,
698 struct timezone __user *tz);
699asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv,
700 struct timezone __user *tz);
701asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p);
702asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p);
703asmlinkage long sys_getpid(void);
704asmlinkage long sys_getppid(void);
705asmlinkage long sys_getuid(void);
706asmlinkage long sys_geteuid(void);
707asmlinkage long sys_getgid(void);
708asmlinkage long sys_getegid(void);
709asmlinkage long sys_gettid(void);
710asmlinkage long sys_sysinfo(struct sysinfo __user *info);
711asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
712asmlinkage long sys_mq_unlink(const char __user *name);
713asmlinkage 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);
714asmlinkage 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);
715asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
716asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
717asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes,
718 char __user *u_msg_ptr,
719 unsigned int msg_len, unsigned int __user *u_msg_prio,
720 const struct old_timespec32 __user *u_abs_timeout);
721asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes,
722 const char __user *u_msg_ptr,
723 unsigned int msg_len, unsigned int msg_prio,
724 const struct old_timespec32 __user *u_abs_timeout);
725asmlinkage long sys_msgget(key_t key, int msgflg);
726asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
727asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
728asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
729 size_t msgsz, long msgtyp, int msgflg);
730asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
731 size_t msgsz, int msgflg);
732asmlinkage long sys_semget(key_t key, int nsems, int semflg);
733asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
734asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
735asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
736 unsigned nsops,
737 const struct __kernel_timespec __user *timeout);
738asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops,
739 unsigned nsops,
740 const struct old_timespec32 __user *timeout);
741asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
742 unsigned nsops);
743asmlinkage long sys_shmget(key_t key, size_t size, int flag);
744asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
745asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
746asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
747asmlinkage long sys_shmdt(char __user *shmaddr);
748asmlinkage long sys_socket(int, int, int);
749asmlinkage long sys_socketpair(int, int, int, int __user *);
750asmlinkage long sys_bind(int, struct sockaddr __user *, int);
751asmlinkage long sys_listen(int, int);
752asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
753asmlinkage long sys_connect(int, struct sockaddr __user *, int);
754asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
755asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
756asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
757 struct sockaddr __user *, int);
758asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
759 struct sockaddr __user *, int __user *);
760asmlinkage long sys_setsockopt(int fd, int level, int optname,
761 char __user *optval, int optlen);
762asmlinkage long sys_getsockopt(int fd, int level, int optname,
763 char __user *optval, int __user *optlen);
764asmlinkage long sys_shutdown(int, int);
765asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
766asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
767asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
768asmlinkage long sys_brk(unsigned long brk);
769asmlinkage long sys_munmap(unsigned long addr, size_t len);
770asmlinkage long sys_mremap(unsigned long addr,
771 unsigned long old_len, unsigned long new_len,
772 unsigned long flags, unsigned long new_addr);
773asmlinkage long sys_add_key(const char __user *_type,
774 const char __user *_description,
775 const void __user *_payload,
776 size_t plen,
777 key_serial_t destringid);
778asmlinkage long sys_request_key(const char __user *_type,
779 const char __user *_description,
780 const char __user *_callout_info,
781 key_serial_t destringid);
782asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
783 unsigned long arg4, unsigned long arg5);
784#ifdef CONFIG_CLONE_BACKWARDS
785asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
786 int __user *);
787#else
788#ifdef CONFIG_CLONE_BACKWARDS3
789asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
790 int __user *, unsigned long);
791#else
792asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
793 int __user *, unsigned long);
794#endif
795#endif
796
797asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size);
798
799asmlinkage long sys_execve(const char __user *filename,
800 const char __user *const __user *argv,
801 const char __user *const __user *envp);
802asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
803
804/* CONFIG_MMU only */
805asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
806asmlinkage long sys_swapoff(const char __user *specialfile);
807asmlinkage long sys_mprotect(unsigned long start, size_t len,
808 unsigned long prot);
809asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
810asmlinkage long sys_mlock(unsigned long start, size_t len);
811asmlinkage long sys_munlock(unsigned long start, size_t len);
812asmlinkage long sys_mlockall(int flags);
813asmlinkage long sys_munlockall(void);
814asmlinkage long sys_mincore(unsigned long start, size_t len,
815 unsigned char __user * vec);
816asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
817asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec,
818 size_t vlen, int behavior, unsigned int flags);
819asmlinkage long sys_process_mrelease(int pidfd, unsigned int flags);
820asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
821 unsigned long prot, unsigned long pgoff,
822 unsigned long flags);
823asmlinkage long sys_mbind(unsigned long start, unsigned long len,
824 unsigned long mode,
825 const unsigned long __user *nmask,
826 unsigned long maxnode,
827 unsigned flags);
828asmlinkage long sys_get_mempolicy(int __user *policy,
829 unsigned long __user *nmask,
830 unsigned long maxnode,
831 unsigned long addr, unsigned long flags);
832asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
833 unsigned long maxnode);
834asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
835 const unsigned long __user *from,
836 const unsigned long __user *to);
837asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
838 const void __user * __user *pages,
839 const int __user *nodes,
840 int __user *status,
841 int flags);
842asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
843 siginfo_t __user *uinfo);
844asmlinkage long sys_perf_event_open(
845 struct perf_event_attr __user *attr_uptr,
846 pid_t pid, int cpu, int group_fd, unsigned long flags);
847asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
848asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
849 unsigned int vlen, unsigned flags,
850 struct __kernel_timespec __user *timeout);
851asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
852 unsigned int vlen, unsigned flags,
853 struct old_timespec32 __user *timeout);
854asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
855 int options, struct rusage __user *ru);
856asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
857 const struct rlimit64 __user *new_rlim,
858 struct rlimit64 __user *old_rlim);
859asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
860asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
861 u64 mask, int fd,
862 const char __user *pathname);
863asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
864 struct file_handle __user *handle,
865 int __user *mnt_id, int flag);
866asmlinkage long sys_open_by_handle_at(int mountdirfd,
867 struct file_handle __user *handle,
868 int flags);
869asmlinkage long sys_clock_adjtime(clockid_t which_clock,
870 struct __kernel_timex __user *tx);
871asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
872 struct old_timex32 __user *tx);
873asmlinkage long sys_syncfs(int fd);
874asmlinkage long sys_setns(int fd, int nstype);
875asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
876asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
877 unsigned int vlen, unsigned flags);
878asmlinkage long sys_process_vm_readv(pid_t pid,
879 const struct iovec __user *lvec,
880 unsigned long liovcnt,
881 const struct iovec __user *rvec,
882 unsigned long riovcnt,
883 unsigned long flags);
884asmlinkage long sys_process_vm_writev(pid_t pid,
885 const struct iovec __user *lvec,
886 unsigned long liovcnt,
887 const struct iovec __user *rvec,
888 unsigned long riovcnt,
889 unsigned long flags);
890asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
891 unsigned long idx1, unsigned long idx2);
892asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
893asmlinkage long sys_sched_setattr(pid_t pid,
894 struct sched_attr __user *attr,
895 unsigned int flags);
896asmlinkage long sys_sched_getattr(pid_t pid,
897 struct sched_attr __user *attr,
898 unsigned int size,
899 unsigned int flags);
900asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
901 int newdfd, const char __user *newname,
902 unsigned int flags);
903asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
904 void __user *uargs);
905asmlinkage long sys_getrandom(char __user *buf, size_t count,
906 unsigned int flags);
907asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
908asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
909asmlinkage long sys_execveat(int dfd, const char __user *filename,
910 const char __user *const __user *argv,
911 const char __user *const __user *envp, int flags);
912asmlinkage long sys_userfaultfd(int flags);
913asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id);
914asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
915asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
916 int fd_out, loff_t __user *off_out,
917 size_t len, unsigned int flags);
918asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
919 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
920 rwf_t flags);
921asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
922 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
923 rwf_t flags);
924asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
925 unsigned long prot, int pkey);
926asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
927asmlinkage long sys_pkey_free(int pkey);
928asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
929 unsigned mask, struct statx __user *buffer);
930asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
931 int flags, uint32_t sig);
932asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
933asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
934 int to_dfd, const char __user *to_path,
935 unsigned int ms_flags);
936asmlinkage long sys_mount_setattr(int dfd, const char __user *path,
937 unsigned int flags,
938 struct mount_attr __user *uattr, size_t usize);
939asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
940asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
941 const void __user *value, int aux);
942asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
943asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
944asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
945 siginfo_t __user *info,
946 unsigned int flags);
947asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags);
948asmlinkage long sys_landlock_create_ruleset(const struct landlock_ruleset_attr __user *attr,
949 size_t size, __u32 flags);
950asmlinkage long sys_landlock_add_rule(int ruleset_fd, enum landlock_rule_type rule_type,
951 const void __user *rule_attr, __u32 flags);
952asmlinkage long sys_landlock_restrict_self(int ruleset_fd, __u32 flags);
953asmlinkage long sys_memfd_secret(unsigned int flags);
954asmlinkage long sys_set_mempolicy_home_node(unsigned long start, unsigned long len,
955 unsigned long home_node,
956 unsigned long flags);
957asmlinkage long sys_cachestat(unsigned int fd,
958 struct cachestat_range __user *cstat_range,
959 struct cachestat __user *cstat, unsigned int flags);
960asmlinkage long sys_map_shadow_stack(unsigned long addr, unsigned long size, unsigned int flags);
961asmlinkage long sys_lsm_get_self_attr(unsigned int attr, struct lsm_ctx *ctx,
962 size_t *size, __u32 flags);
963asmlinkage long sys_lsm_set_self_attr(unsigned int attr, struct lsm_ctx *ctx,
964 size_t size, __u32 flags);
965asmlinkage long sys_lsm_list_modules(u64 *ids, size_t *size, u32 flags);
966
967/*
968 * Architecture-specific system calls
969 */
970
971/* x86 */
972asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
973
974/* pciconfig: alpha, arm, arm64, ia64, sparc */
975asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
976 unsigned long off, unsigned long len,
977 void __user *buf);
978asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
979 unsigned long off, unsigned long len,
980 void __user *buf);
981asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
982
983/* powerpc */
984asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
985 __u32 __user *ustatus);
986asmlinkage long sys_spu_create(const char __user *name,
987 unsigned int flags, umode_t mode, int fd);
988
989
990/*
991 * Deprecated system calls which are still defined in
992 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
993 */
994
995/* __ARCH_WANT_SYSCALL_NO_AT */
996asmlinkage long sys_open(const char __user *filename,
997 int flags, umode_t mode);
998asmlinkage long sys_link(const char __user *oldname,
999 const char __user *newname);
1000asmlinkage long sys_unlink(const char __user *pathname);
1001asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
1002 unsigned dev);
1003asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
1004asmlinkage long sys_chown(const char __user *filename,
1005 uid_t user, gid_t group);
1006asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
1007asmlinkage long sys_rmdir(const char __user *pathname);
1008asmlinkage long sys_lchown(const char __user *filename,
1009 uid_t user, gid_t group);
1010asmlinkage long sys_access(const char __user *filename, int mode);
1011asmlinkage long sys_rename(const char __user *oldname,
1012 const char __user *newname);
1013asmlinkage long sys_symlink(const char __user *old, const char __user *new);
1014#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
1015asmlinkage long sys_stat64(const char __user *filename,
1016 struct stat64 __user *statbuf);
1017asmlinkage long sys_lstat64(const char __user *filename,
1018 struct stat64 __user *statbuf);
1019#endif
1020
1021/* __ARCH_WANT_SYSCALL_NO_FLAGS */
1022asmlinkage long sys_pipe(int __user *fildes);
1023asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
1024asmlinkage long sys_epoll_create(int size);
1025asmlinkage long sys_inotify_init(void);
1026asmlinkage long sys_eventfd(unsigned int count);
1027asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
1028
1029/* __ARCH_WANT_SYSCALL_OFF_T */
1030asmlinkage long sys_sendfile(int out_fd, int in_fd,
1031 off_t __user *offset, size_t count);
1032asmlinkage long sys_newstat(const char __user *filename,
1033 struct stat __user *statbuf);
1034asmlinkage long sys_newlstat(const char __user *filename,
1035 struct stat __user *statbuf);
1036asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
1037
1038/* __ARCH_WANT_SYSCALL_DEPRECATED */
1039asmlinkage long sys_alarm(unsigned int seconds);
1040asmlinkage long sys_getpgrp(void);
1041asmlinkage long sys_pause(void);
1042asmlinkage long sys_time(__kernel_old_time_t __user *tloc);
1043asmlinkage long sys_time32(old_time32_t __user *tloc);
1044#ifdef __ARCH_WANT_SYS_UTIME
1045asmlinkage long sys_utime(char __user *filename,
1046 struct utimbuf __user *times);
1047asmlinkage long sys_utimes(char __user *filename,
1048 struct __kernel_old_timeval __user *utimes);
1049asmlinkage long sys_futimesat(int dfd, const char __user *filename,
1050 struct __kernel_old_timeval __user *utimes);
1051#endif
1052asmlinkage long sys_futimesat_time32(unsigned int dfd,
1053 const char __user *filename,
1054 struct old_timeval32 __user *t);
1055asmlinkage long sys_utime32(const char __user *filename,
1056 struct old_utimbuf32 __user *t);
1057asmlinkage long sys_utimes_time32(const char __user *filename,
1058 struct old_timeval32 __user *t);
1059asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
1060asmlinkage long sys_getdents(unsigned int fd,
1061 struct linux_dirent __user *dirent,
1062 unsigned int count);
1063asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
1064 fd_set __user *exp, struct __kernel_old_timeval __user *tvp);
1065asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
1066 int timeout);
1067asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
1068 int maxevents, int timeout);
1069asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
1070asmlinkage long sys_vfork(void);
1071asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
1072asmlinkage long sys_send(int, void __user *, size_t, unsigned);
1073asmlinkage long sys_oldumount(char __user *name);
1074asmlinkage long sys_uselib(const char __user *library);
1075asmlinkage long sys_sysfs(int option,
1076 unsigned long arg1, unsigned long arg2);
1077asmlinkage long sys_fork(void);
1078
1079/* obsolete */
1080asmlinkage long sys_stime(__kernel_old_time_t __user *tptr);
1081asmlinkage long sys_stime32(old_time32_t __user *tptr);
1082
1083/* obsolete */
1084asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1085asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1086 old_sigset_t __user *oset);
1087#ifdef CONFIG_OLD_SIGSUSPEND
1088asmlinkage long sys_sigsuspend(old_sigset_t mask);
1089#endif
1090
1091#ifdef CONFIG_OLD_SIGSUSPEND3
1092asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1093#endif
1094
1095#ifdef CONFIG_OLD_SIGACTION
1096asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1097 struct old_sigaction __user *);
1098#endif
1099asmlinkage long sys_sgetmask(void);
1100asmlinkage long sys_ssetmask(int newmask);
1101asmlinkage long sys_signal(int sig, __sighandler_t handler);
1102
1103/* obsolete */
1104asmlinkage long sys_nice(int increment);
1105
1106/* obsolete */
1107asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1108 unsigned long cmdline_len,
1109 const char __user *cmdline_ptr,
1110 unsigned long flags);
1111
1112/* obsolete */
1113asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1114
1115/* obsolete */
1116#ifdef CONFIG_HAVE_UID16
1117asmlinkage long sys_chown16(const char __user *filename,
1118 old_uid_t user, old_gid_t group);
1119asmlinkage long sys_lchown16(const char __user *filename,
1120 old_uid_t user, old_gid_t group);
1121asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1122asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1123asmlinkage long sys_setgid16(old_gid_t gid);
1124asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1125asmlinkage long sys_setuid16(old_uid_t uid);
1126asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1127asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1128 old_uid_t __user *euid, old_uid_t __user *suid);
1129asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1130asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1131 old_gid_t __user *egid, old_gid_t __user *sgid);
1132asmlinkage long sys_setfsuid16(old_uid_t uid);
1133asmlinkage long sys_setfsgid16(old_gid_t gid);
1134asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1135asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1136asmlinkage long sys_getuid16(void);
1137asmlinkage long sys_geteuid16(void);
1138asmlinkage long sys_getgid16(void);
1139asmlinkage long sys_getegid16(void);
1140#endif
1141
1142/* obsolete */
1143asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1144
1145/* obsolete */
1146asmlinkage long sys_stat(const char __user *filename,
1147 struct __old_kernel_stat __user *statbuf);
1148asmlinkage long sys_lstat(const char __user *filename,
1149 struct __old_kernel_stat __user *statbuf);
1150asmlinkage long sys_fstat(unsigned int fd,
1151 struct __old_kernel_stat __user *statbuf);
1152asmlinkage long sys_readlink(const char __user *path,
1153 char __user *buf, int bufsiz);
1154
1155/* obsolete */
1156asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1157
1158/* obsolete */
1159asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1160
1161/* obsolete */
1162asmlinkage long sys_gethostname(char __user *name, int len);
1163asmlinkage long sys_uname(struct old_utsname __user *);
1164asmlinkage long sys_olduname(struct oldold_utsname __user *);
1165#ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1166asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1167#endif
1168
1169/* obsolete */
1170asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1171 unsigned long third, void __user *ptr, long fifth);
1172
1173/* obsolete */
1174asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1175 unsigned long prot, unsigned long flags,
1176 unsigned long fd, unsigned long pgoff);
1177asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1178
1179
1180/*
1181 * Not a real system call, but a placeholder for syscalls which are
1182 * not implemented -- see kernel/sys_ni.c
1183 */
1184asmlinkage long sys_ni_syscall(void);
1185
1186#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1187
1188asmlinkage long sys_ni_posix_timers(void);
1189
1190/*
1191 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1192 * Instead, use one of the functions which work equivalently, such as
1193 * the ksys_xyzyyz() functions prototyped below.
1194 */
1195ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1196int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1197ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1198void ksys_sync(void);
1199int ksys_unshare(unsigned long unshare_flags);
1200int ksys_setsid(void);
1201int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1202 unsigned int flags);
1203ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1204 loff_t pos);
1205ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1206 size_t count, loff_t pos);
1207int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1208#ifdef CONFIG_ADVISE_SYSCALLS
1209int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1210#else
1211static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1212 int advice)
1213{
1214 return -EINVAL;
1215}
1216#endif
1217unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1218 unsigned long prot, unsigned long flags,
1219 unsigned long fd, unsigned long pgoff);
1220ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1221int ksys_ipc(unsigned int call, int first, unsigned long second,
1222 unsigned long third, void __user * ptr, long fifth);
1223int compat_ksys_ipc(u32 call, int first, int second,
1224 u32 third, u32 ptr, u32 fifth);
1225
1226/*
1227 * The following kernel syscall equivalents are just wrappers to fs-internal
1228 * functions. Therefore, provide stubs to be inlined at the callsites.
1229 */
1230extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1231 gid_t group, int flag);
1232
1233static inline long ksys_chown(const char __user *filename, uid_t user,
1234 gid_t group)
1235{
1236 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1237}
1238
1239static inline long ksys_lchown(const char __user *filename, uid_t user,
1240 gid_t group)
1241{
1242 return do_fchownat(AT_FDCWD, filename, user, group,
1243 AT_SYMLINK_NOFOLLOW);
1244}
1245
1246extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1247
1248static inline long ksys_ftruncate(unsigned int fd, loff_t length)
1249{
1250 return do_sys_ftruncate(fd, length, 1);
1251}
1252
1253extern long do_sys_truncate(const char __user *pathname, loff_t length);
1254
1255static inline long ksys_truncate(const char __user *pathname, loff_t length)
1256{
1257 return do_sys_truncate(pathname, length);
1258}
1259
1260static inline unsigned int ksys_personality(unsigned int personality)
1261{
1262 unsigned int old = current->personality;
1263
1264 if (personality != 0xffffffff)
1265 set_personality(personality);
1266
1267 return old;
1268}
1269
1270/* for __ARCH_WANT_SYS_IPC */
1271long ksys_semtimedop(int semid, struct sembuf __user *tsops,
1272 unsigned int nsops,
1273 const struct __kernel_timespec __user *timeout);
1274long ksys_semget(key_t key, int nsems, int semflg);
1275long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
1276long ksys_msgget(key_t key, int msgflg);
1277long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
1278long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1279 long msgtyp, int msgflg);
1280long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1281 int msgflg);
1282long ksys_shmget(key_t key, size_t size, int shmflg);
1283long ksys_shmdt(char __user *shmaddr);
1284long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
1285long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems,
1286 unsigned int nsops,
1287 const struct old_timespec32 __user *timeout);
1288long __do_semtimedop(int semid, struct sembuf *tsems, unsigned int nsops,
1289 const struct timespec64 *timeout,
1290 struct ipc_namespace *ns);
1291
1292int __sys_getsockopt(int fd, int level, int optname, char __user *optval,
1293 int __user *optlen);
1294int __sys_setsockopt(int fd, int level, int optname, char __user *optval,
1295 int optlen);
1296#endif