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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;
74enum landlock_rule_type;
75struct cachestat_range;
76struct cachestat;
77
78#include <linux/types.h>
79#include <linux/aio_abi.h>
80#include <linux/capability.h>
81#include <linux/signal.h>
82#include <linux/list.h>
83#include <linux/bug.h>
84#include <linux/sem.h>
85#include <asm/siginfo.h>
86#include <linux/unistd.h>
87#include <linux/quota.h>
88#include <linux/key.h>
89#include <linux/personality.h>
90#include <trace/syscall.h>
91
92#ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
93/*
94 * It may be useful for an architecture to override the definitions of the
95 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
96 * different calling convention for syscalls. To allow for that, the prototypes
97 * for the sys_*() functions below will *not* be included if
98 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
99 */
100#include <asm/syscall_wrapper.h>
101#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
102
103/*
104 * __MAP - apply a macro to syscall arguments
105 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
106 * m(t1, a1), m(t2, a2), ..., m(tn, an)
107 * The first argument must be equal to the amount of type/name
108 * pairs given. Note that this list of pairs (i.e. the arguments
109 * of __MAP starting at the third one) is in the same format as
110 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
111 */
112#define __MAP0(m,...)
113#define __MAP1(m,t,a,...) m(t,a)
114#define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
115#define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
116#define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
117#define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
118#define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
119#define __MAP(n,...) __MAP##n(__VA_ARGS__)
120
121#define __SC_DECL(t, a) t a
122#define __TYPE_AS(t, v) __same_type((__force t)0, v)
123#define __TYPE_IS_L(t) (__TYPE_AS(t, 0L))
124#define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
125#define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
126#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
127#define __SC_CAST(t, a) (__force t) a
128#define __SC_ARGS(t, a) a
129#define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
130
131#ifdef CONFIG_FTRACE_SYSCALLS
132#define __SC_STR_ADECL(t, a) #a
133#define __SC_STR_TDECL(t, a) #t
134
135extern struct trace_event_class event_class_syscall_enter;
136extern struct trace_event_class event_class_syscall_exit;
137extern struct trace_event_functions enter_syscall_print_funcs;
138extern struct trace_event_functions exit_syscall_print_funcs;
139
140#define SYSCALL_TRACE_ENTER_EVENT(sname) \
141 static struct syscall_metadata __syscall_meta_##sname; \
142 static struct trace_event_call __used \
143 event_enter_##sname = { \
144 .class = &event_class_syscall_enter, \
145 { \
146 .name = "sys_enter"#sname, \
147 }, \
148 .event.funcs = &enter_syscall_print_funcs, \
149 .data = (void *)&__syscall_meta_##sname,\
150 .flags = TRACE_EVENT_FL_CAP_ANY, \
151 }; \
152 static struct trace_event_call __used \
153 __section("_ftrace_events") \
154 *__event_enter_##sname = &event_enter_##sname;
155
156#define SYSCALL_TRACE_EXIT_EVENT(sname) \
157 static struct syscall_metadata __syscall_meta_##sname; \
158 static struct trace_event_call __used \
159 event_exit_##sname = { \
160 .class = &event_class_syscall_exit, \
161 { \
162 .name = "sys_exit"#sname, \
163 }, \
164 .event.funcs = &exit_syscall_print_funcs, \
165 .data = (void *)&__syscall_meta_##sname,\
166 .flags = TRACE_EVENT_FL_CAP_ANY, \
167 }; \
168 static struct trace_event_call __used \
169 __section("_ftrace_events") \
170 *__event_exit_##sname = &event_exit_##sname;
171
172#define SYSCALL_METADATA(sname, nb, ...) \
173 static const char *types_##sname[] = { \
174 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
175 }; \
176 static const char *args_##sname[] = { \
177 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
178 }; \
179 SYSCALL_TRACE_ENTER_EVENT(sname); \
180 SYSCALL_TRACE_EXIT_EVENT(sname); \
181 static struct syscall_metadata __used \
182 __syscall_meta_##sname = { \
183 .name = "sys"#sname, \
184 .syscall_nr = -1, /* Filled in at boot */ \
185 .nb_args = nb, \
186 .types = nb ? types_##sname : NULL, \
187 .args = nb ? args_##sname : NULL, \
188 .enter_event = &event_enter_##sname, \
189 .exit_event = &event_exit_##sname, \
190 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
191 }; \
192 static struct syscall_metadata __used \
193 __section("__syscalls_metadata") \
194 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
195
196static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
197{
198 return tp_event->class == &event_class_syscall_enter ||
199 tp_event->class == &event_class_syscall_exit;
200}
201
202#else
203#define SYSCALL_METADATA(sname, nb, ...)
204
205static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
206{
207 return 0;
208}
209#endif
210
211#ifndef SYSCALL_DEFINE0
212#define SYSCALL_DEFINE0(sname) \
213 SYSCALL_METADATA(_##sname, 0); \
214 asmlinkage long sys_##sname(void); \
215 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
216 asmlinkage long sys_##sname(void)
217#endif /* SYSCALL_DEFINE0 */
218
219#define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
220#define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
221#define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
222#define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
223#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
224#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
225
226#define SYSCALL_DEFINE_MAXARGS 6
227
228#define SYSCALL_DEFINEx(x, sname, ...) \
229 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
230 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
231
232#define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
233
234/*
235 * The asmlinkage stub is aliased to a function named __se_sys_*() which
236 * sign-extends 32-bit ints to longs whenever needed. The actual work is
237 * done within __do_sys_*().
238 */
239#ifndef __SYSCALL_DEFINEx
240#define __SYSCALL_DEFINEx(x, name, ...) \
241 __diag_push(); \
242 __diag_ignore(GCC, 8, "-Wattribute-alias", \
243 "Type aliasing is used to sanitize syscall arguments");\
244 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
245 __attribute__((alias(__stringify(__se_sys##name)))); \
246 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
247 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
248 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
249 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
250 { \
251 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
252 __MAP(x,__SC_TEST,__VA_ARGS__); \
253 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
254 return ret; \
255 } \
256 __diag_pop(); \
257 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
258#endif /* __SYSCALL_DEFINEx */
259
260/* For split 64-bit arguments on 32-bit architectures */
261#ifdef __LITTLE_ENDIAN
262#define SC_ARG64(name) u32, name##_lo, u32, name##_hi
263#else
264#define SC_ARG64(name) u32, name##_hi, u32, name##_lo
265#endif
266#define SC_VAL64(type, name) ((type) name##_hi << 32 | name##_lo)
267
268#ifdef CONFIG_COMPAT
269#define SYSCALL32_DEFINE0 COMPAT_SYSCALL_DEFINE0
270#define SYSCALL32_DEFINE1 COMPAT_SYSCALL_DEFINE1
271#define SYSCALL32_DEFINE2 COMPAT_SYSCALL_DEFINE2
272#define SYSCALL32_DEFINE3 COMPAT_SYSCALL_DEFINE3
273#define SYSCALL32_DEFINE4 COMPAT_SYSCALL_DEFINE4
274#define SYSCALL32_DEFINE5 COMPAT_SYSCALL_DEFINE5
275#define SYSCALL32_DEFINE6 COMPAT_SYSCALL_DEFINE6
276#else
277#define SYSCALL32_DEFINE0 SYSCALL_DEFINE0
278#define SYSCALL32_DEFINE1 SYSCALL_DEFINE1
279#define SYSCALL32_DEFINE2 SYSCALL_DEFINE2
280#define SYSCALL32_DEFINE3 SYSCALL_DEFINE3
281#define SYSCALL32_DEFINE4 SYSCALL_DEFINE4
282#define SYSCALL32_DEFINE5 SYSCALL_DEFINE5
283#define SYSCALL32_DEFINE6 SYSCALL_DEFINE6
284#endif
285
286/*
287 * Called before coming back to user-mode. Returning to user-mode with an
288 * address limit different than USER_DS can allow to overwrite kernel memory.
289 */
290static inline void addr_limit_user_check(void)
291{
292#ifdef TIF_FSCHECK
293 if (!test_thread_flag(TIF_FSCHECK))
294 return;
295#endif
296
297#ifdef TIF_FSCHECK
298 clear_thread_flag(TIF_FSCHECK);
299#endif
300}
301
302/*
303 * These syscall function prototypes are kept in the same order as
304 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
305 * followed by deprecated or obsolete system calls.
306 *
307 * Please note that these prototypes here are only provided for information
308 * purposes, for static analysis, and for linking from the syscall table.
309 * These functions should not be called elsewhere from kernel code.
310 *
311 * As the syscall calling convention may be different from the default
312 * for architectures overriding the syscall calling convention, do not
313 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
314 */
315#ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
316asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
317asmlinkage long sys_io_destroy(aio_context_t ctx);
318asmlinkage long sys_io_submit(aio_context_t, long,
319 struct iocb __user * __user *);
320asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
321 struct io_event __user *result);
322asmlinkage long sys_io_getevents(aio_context_t ctx_id,
323 long min_nr,
324 long nr,
325 struct io_event __user *events,
326 struct __kernel_timespec __user *timeout);
327asmlinkage long sys_io_getevents_time32(__u32 ctx_id,
328 __s32 min_nr,
329 __s32 nr,
330 struct io_event __user *events,
331 struct old_timespec32 __user *timeout);
332asmlinkage long sys_io_pgetevents(aio_context_t ctx_id,
333 long min_nr,
334 long nr,
335 struct io_event __user *events,
336 struct __kernel_timespec __user *timeout,
337 const struct __aio_sigset *sig);
338asmlinkage long sys_io_pgetevents_time32(aio_context_t ctx_id,
339 long min_nr,
340 long nr,
341 struct io_event __user *events,
342 struct old_timespec32 __user *timeout,
343 const struct __aio_sigset *sig);
344asmlinkage long sys_io_uring_setup(u32 entries,
345 struct io_uring_params __user *p);
346asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit,
347 u32 min_complete, u32 flags,
348 const void __user *argp, size_t argsz);
349asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op,
350 void __user *arg, unsigned int nr_args);
351asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
352 const void __user *value, size_t size, int flags);
353asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
354 const void __user *value, size_t size, int flags);
355asmlinkage long sys_fsetxattr(int fd, const char __user *name,
356 const void __user *value, size_t size, int flags);
357asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
358 void __user *value, size_t size);
359asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
360 void __user *value, size_t size);
361asmlinkage long sys_fgetxattr(int fd, const char __user *name,
362 void __user *value, size_t size);
363asmlinkage long sys_listxattr(const char __user *path, char __user *list,
364 size_t size);
365asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
366 size_t size);
367asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
368asmlinkage long sys_removexattr(const char __user *path,
369 const char __user *name);
370asmlinkage long sys_lremovexattr(const char __user *path,
371 const char __user *name);
372asmlinkage long sys_fremovexattr(int fd, const char __user *name);
373asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
374asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len);
375asmlinkage long sys_eventfd2(unsigned int count, int flags);
376asmlinkage long sys_epoll_create1(int flags);
377asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
378 struct epoll_event __user *event);
379asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
380 int maxevents, int timeout,
381 const sigset_t __user *sigmask,
382 size_t sigsetsize);
383asmlinkage long sys_epoll_pwait2(int epfd, struct epoll_event __user *events,
384 int maxevents,
385 const struct __kernel_timespec __user *timeout,
386 const sigset_t __user *sigmask,
387 size_t sigsetsize);
388asmlinkage long sys_dup(unsigned int fildes);
389asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
390asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
391#if BITS_PER_LONG == 32
392asmlinkage long sys_fcntl64(unsigned int fd,
393 unsigned int cmd, unsigned long arg);
394#endif
395asmlinkage long sys_inotify_init1(int flags);
396asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
397 u32 mask);
398asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
399asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
400 unsigned long arg);
401asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
402asmlinkage long sys_ioprio_get(int which, int who);
403asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
404asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
405 unsigned dev);
406asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
407asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
408asmlinkage long sys_symlinkat(const char __user * oldname,
409 int newdfd, const char __user * newname);
410asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
411 int newdfd, const char __user *newname, int flags);
412asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
413 int newdfd, const char __user * newname);
414asmlinkage long sys_umount(char __user *name, int flags);
415asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
416 char __user *type, unsigned long flags,
417 void __user *data);
418asmlinkage long sys_pivot_root(const char __user *new_root,
419 const char __user *put_old);
420asmlinkage long sys_statfs(const char __user * path,
421 struct statfs __user *buf);
422asmlinkage long sys_statfs64(const char __user *path, size_t sz,
423 struct statfs64 __user *buf);
424asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
425asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
426 struct statfs64 __user *buf);
427asmlinkage long sys_truncate(const char __user *path, long length);
428asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
429#if BITS_PER_LONG == 32
430asmlinkage long sys_truncate64(const char __user *path, loff_t length);
431asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
432#endif
433asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
434asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
435asmlinkage long sys_faccessat2(int dfd, const char __user *filename, int mode,
436 int flags);
437asmlinkage long sys_chdir(const char __user *filename);
438asmlinkage long sys_fchdir(unsigned int fd);
439asmlinkage long sys_chroot(const char __user *filename);
440asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
441asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
442 umode_t mode);
443asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
444 gid_t group, int flag);
445asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
446asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
447 umode_t mode);
448asmlinkage long sys_openat2(int dfd, const char __user *filename,
449 struct open_how *how, size_t size);
450asmlinkage long sys_close(unsigned int fd);
451asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd,
452 unsigned int flags);
453asmlinkage long sys_vhangup(void);
454asmlinkage long sys_pipe2(int __user *fildes, int flags);
455asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
456 qid_t id, void __user *addr);
457asmlinkage long sys_quotactl_fd(unsigned int fd, unsigned int cmd, qid_t id,
458 void __user *addr);
459asmlinkage long sys_getdents64(unsigned int fd,
460 struct linux_dirent64 __user *dirent,
461 unsigned int count);
462asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
463 unsigned long offset_low, loff_t __user *result,
464 unsigned int whence);
465asmlinkage long sys_lseek(unsigned int fd, off_t offset,
466 unsigned int whence);
467asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
468asmlinkage long sys_write(unsigned int fd, const char __user *buf,
469 size_t count);
470asmlinkage long sys_readv(unsigned long fd,
471 const struct iovec __user *vec,
472 unsigned long vlen);
473asmlinkage long sys_writev(unsigned long fd,
474 const struct iovec __user *vec,
475 unsigned long vlen);
476asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
477 size_t count, loff_t pos);
478asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
479 size_t count, loff_t pos);
480asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
481 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
482asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
483 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
484asmlinkage long sys_sendfile64(int out_fd, int in_fd,
485 loff_t __user *offset, size_t count);
486asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
487 fd_set __user *, struct __kernel_timespec __user *,
488 void __user *);
489asmlinkage long sys_pselect6_time32(int, fd_set __user *, fd_set __user *,
490 fd_set __user *, struct old_timespec32 __user *,
491 void __user *);
492asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
493 struct __kernel_timespec __user *, const sigset_t __user *,
494 size_t);
495asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int,
496 struct old_timespec32 __user *, const sigset_t __user *,
497 size_t);
498asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
499asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
500 unsigned long nr_segs, unsigned int flags);
501asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
502 int fd_out, loff_t __user *off_out,
503 size_t len, unsigned int flags);
504asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
505asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
506 int bufsiz);
507asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
508 struct stat __user *statbuf, int flag);
509asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
510#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
511asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
512asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
513 struct stat64 __user *statbuf, int flag);
514#endif
515asmlinkage long sys_sync(void);
516asmlinkage long sys_fsync(unsigned int fd);
517asmlinkage long sys_fdatasync(unsigned int fd);
518asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
519 loff_t offset, loff_t nbytes);
520asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
521 unsigned int flags);
522asmlinkage long sys_timerfd_create(int clockid, int flags);
523asmlinkage long sys_timerfd_settime(int ufd, int flags,
524 const struct __kernel_itimerspec __user *utmr,
525 struct __kernel_itimerspec __user *otmr);
526asmlinkage long sys_timerfd_gettime(int ufd, struct __kernel_itimerspec __user *otmr);
527asmlinkage long sys_timerfd_gettime32(int ufd,
528 struct old_itimerspec32 __user *otmr);
529asmlinkage long sys_timerfd_settime32(int ufd, int flags,
530 const struct old_itimerspec32 __user *utmr,
531 struct old_itimerspec32 __user *otmr);
532asmlinkage long sys_utimensat(int dfd, const char __user *filename,
533 struct __kernel_timespec __user *utimes,
534 int flags);
535asmlinkage long sys_utimensat_time32(unsigned int dfd,
536 const char __user *filename,
537 struct old_timespec32 __user *t, int flags);
538asmlinkage long sys_acct(const char __user *name);
539asmlinkage long sys_capget(cap_user_header_t header,
540 cap_user_data_t dataptr);
541asmlinkage long sys_capset(cap_user_header_t header,
542 const cap_user_data_t data);
543asmlinkage long sys_personality(unsigned int personality);
544asmlinkage long sys_exit(int error_code);
545asmlinkage long sys_exit_group(int error_code);
546asmlinkage long sys_waitid(int which, pid_t pid,
547 struct siginfo __user *infop,
548 int options, struct rusage __user *ru);
549asmlinkage long sys_set_tid_address(int __user *tidptr);
550asmlinkage long sys_unshare(unsigned long unshare_flags);
551asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
552 const struct __kernel_timespec __user *utime,
553 u32 __user *uaddr2, u32 val3);
554asmlinkage long sys_futex_time32(u32 __user *uaddr, int op, u32 val,
555 const struct old_timespec32 __user *utime,
556 u32 __user *uaddr2, u32 val3);
557asmlinkage long sys_get_robust_list(int pid,
558 struct robust_list_head __user * __user *head_ptr,
559 size_t __user *len_ptr);
560asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
561 size_t len);
562
563asmlinkage long sys_futex_waitv(struct futex_waitv *waiters,
564 unsigned int nr_futexes, unsigned int flags,
565 struct __kernel_timespec __user *timeout, clockid_t clockid);
566asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
567 struct __kernel_timespec __user *rmtp);
568asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp,
569 struct old_timespec32 __user *rmtp);
570asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value);
571asmlinkage long sys_setitimer(int which,
572 struct __kernel_old_itimerval __user *value,
573 struct __kernel_old_itimerval __user *ovalue);
574asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
575 struct kexec_segment __user *segments,
576 unsigned long flags);
577asmlinkage long sys_init_module(void __user *umod, unsigned long len,
578 const char __user *uargs);
579asmlinkage long sys_delete_module(const char __user *name_user,
580 unsigned int flags);
581asmlinkage long sys_timer_create(clockid_t which_clock,
582 struct sigevent __user *timer_event_spec,
583 timer_t __user * created_timer_id);
584asmlinkage long sys_timer_gettime(timer_t timer_id,
585 struct __kernel_itimerspec __user *setting);
586asmlinkage long sys_timer_getoverrun(timer_t timer_id);
587asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
588 const struct __kernel_itimerspec __user *new_setting,
589 struct __kernel_itimerspec __user *old_setting);
590asmlinkage long sys_timer_delete(timer_t timer_id);
591asmlinkage long sys_clock_settime(clockid_t which_clock,
592 const struct __kernel_timespec __user *tp);
593asmlinkage long sys_clock_gettime(clockid_t which_clock,
594 struct __kernel_timespec __user *tp);
595asmlinkage long sys_clock_getres(clockid_t which_clock,
596 struct __kernel_timespec __user *tp);
597asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
598 const struct __kernel_timespec __user *rqtp,
599 struct __kernel_timespec __user *rmtp);
600asmlinkage long sys_timer_gettime32(timer_t timer_id,
601 struct old_itimerspec32 __user *setting);
602asmlinkage long sys_timer_settime32(timer_t timer_id, int flags,
603 struct old_itimerspec32 __user *new,
604 struct old_itimerspec32 __user *old);
605asmlinkage long sys_clock_settime32(clockid_t which_clock,
606 struct old_timespec32 __user *tp);
607asmlinkage long sys_clock_gettime32(clockid_t which_clock,
608 struct old_timespec32 __user *tp);
609asmlinkage long sys_clock_getres_time32(clockid_t which_clock,
610 struct old_timespec32 __user *tp);
611asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags,
612 struct old_timespec32 __user *rqtp,
613 struct old_timespec32 __user *rmtp);
614asmlinkage long sys_syslog(int type, char __user *buf, int len);
615asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
616 unsigned long data);
617asmlinkage long sys_sched_setparam(pid_t pid,
618 struct sched_param __user *param);
619asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
620 struct sched_param __user *param);
621asmlinkage long sys_sched_getscheduler(pid_t pid);
622asmlinkage long sys_sched_getparam(pid_t pid,
623 struct sched_param __user *param);
624asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
625 unsigned long __user *user_mask_ptr);
626asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
627 unsigned long __user *user_mask_ptr);
628asmlinkage long sys_sched_yield(void);
629asmlinkage long sys_sched_get_priority_max(int policy);
630asmlinkage long sys_sched_get_priority_min(int policy);
631asmlinkage long sys_sched_rr_get_interval(pid_t pid,
632 struct __kernel_timespec __user *interval);
633asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid,
634 struct old_timespec32 __user *interval);
635asmlinkage long sys_restart_syscall(void);
636asmlinkage long sys_kill(pid_t pid, int sig);
637asmlinkage long sys_tkill(pid_t pid, int sig);
638asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
639asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
640 struct sigaltstack __user *uoss);
641asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
642#ifndef CONFIG_ODD_RT_SIGACTION
643asmlinkage long sys_rt_sigaction(int,
644 const struct sigaction __user *,
645 struct sigaction __user *,
646 size_t);
647#endif
648asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
649 sigset_t __user *oset, size_t sigsetsize);
650asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
651asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
652 siginfo_t __user *uinfo,
653 const struct __kernel_timespec __user *uts,
654 size_t sigsetsize);
655asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese,
656 siginfo_t __user *uinfo,
657 const struct old_timespec32 __user *uts,
658 size_t sigsetsize);
659asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
660asmlinkage long sys_setpriority(int which, int who, int niceval);
661asmlinkage long sys_getpriority(int which, int who);
662asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
663 void __user *arg);
664asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
665asmlinkage long sys_setgid(gid_t gid);
666asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
667asmlinkage long sys_setuid(uid_t uid);
668asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
669asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
670asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
671asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
672asmlinkage long sys_setfsuid(uid_t uid);
673asmlinkage long sys_setfsgid(gid_t gid);
674asmlinkage long sys_times(struct tms __user *tbuf);
675asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
676asmlinkage long sys_getpgid(pid_t pid);
677asmlinkage long sys_getsid(pid_t pid);
678asmlinkage long sys_setsid(void);
679asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
680asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
681asmlinkage long sys_newuname(struct new_utsname __user *name);
682asmlinkage long sys_sethostname(char __user *name, int len);
683asmlinkage long sys_setdomainname(char __user *name, int len);
684asmlinkage long sys_getrlimit(unsigned int resource,
685 struct rlimit __user *rlim);
686asmlinkage long sys_setrlimit(unsigned int resource,
687 struct rlimit __user *rlim);
688asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
689asmlinkage long sys_umask(int mask);
690asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
691 unsigned long arg4, unsigned long arg5);
692asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
693asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv,
694 struct timezone __user *tz);
695asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv,
696 struct timezone __user *tz);
697asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p);
698asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p);
699asmlinkage long sys_getpid(void);
700asmlinkage long sys_getppid(void);
701asmlinkage long sys_getuid(void);
702asmlinkage long sys_geteuid(void);
703asmlinkage long sys_getgid(void);
704asmlinkage long sys_getegid(void);
705asmlinkage long sys_gettid(void);
706asmlinkage long sys_sysinfo(struct sysinfo __user *info);
707asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
708asmlinkage long sys_mq_unlink(const char __user *name);
709asmlinkage 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);
710asmlinkage 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);
711asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
712asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
713asmlinkage long sys_mq_timedreceive_time32(mqd_t mqdes,
714 char __user *u_msg_ptr,
715 unsigned int msg_len, unsigned int __user *u_msg_prio,
716 const struct old_timespec32 __user *u_abs_timeout);
717asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes,
718 const char __user *u_msg_ptr,
719 unsigned int msg_len, unsigned int msg_prio,
720 const struct old_timespec32 __user *u_abs_timeout);
721asmlinkage long sys_msgget(key_t key, int msgflg);
722asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
723asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
724asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
725 size_t msgsz, long msgtyp, int msgflg);
726asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
727 size_t msgsz, int msgflg);
728asmlinkage long sys_semget(key_t key, int nsems, int semflg);
729asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
730asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
731asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
732 unsigned nsops,
733 const struct __kernel_timespec __user *timeout);
734asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops,
735 unsigned nsops,
736 const struct old_timespec32 __user *timeout);
737asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
738 unsigned nsops);
739asmlinkage long sys_shmget(key_t key, size_t size, int flag);
740asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
741asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
742asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
743asmlinkage long sys_shmdt(char __user *shmaddr);
744asmlinkage long sys_socket(int, int, int);
745asmlinkage long sys_socketpair(int, int, int, int __user *);
746asmlinkage long sys_bind(int, struct sockaddr __user *, int);
747asmlinkage long sys_listen(int, int);
748asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
749asmlinkage long sys_connect(int, struct sockaddr __user *, int);
750asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
751asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
752asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
753 struct sockaddr __user *, int);
754asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
755 struct sockaddr __user *, int __user *);
756asmlinkage long sys_setsockopt(int fd, int level, int optname,
757 char __user *optval, int optlen);
758asmlinkage long sys_getsockopt(int fd, int level, int optname,
759 char __user *optval, int __user *optlen);
760asmlinkage long sys_shutdown(int, int);
761asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
762asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
763asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
764asmlinkage long sys_brk(unsigned long brk);
765asmlinkage long sys_munmap(unsigned long addr, size_t len);
766asmlinkage long sys_mremap(unsigned long addr,
767 unsigned long old_len, unsigned long new_len,
768 unsigned long flags, unsigned long new_addr);
769asmlinkage long sys_add_key(const char __user *_type,
770 const char __user *_description,
771 const void __user *_payload,
772 size_t plen,
773 key_serial_t destringid);
774asmlinkage long sys_request_key(const char __user *_type,
775 const char __user *_description,
776 const char __user *_callout_info,
777 key_serial_t destringid);
778asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
779 unsigned long arg4, unsigned long arg5);
780#ifdef CONFIG_CLONE_BACKWARDS
781asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
782 int __user *);
783#else
784#ifdef CONFIG_CLONE_BACKWARDS3
785asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
786 int __user *, unsigned long);
787#else
788asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
789 int __user *, unsigned long);
790#endif
791#endif
792
793asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size);
794
795asmlinkage long sys_execve(const char __user *filename,
796 const char __user *const __user *argv,
797 const char __user *const __user *envp);
798asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
799
800/* CONFIG_MMU only */
801asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
802asmlinkage long sys_swapoff(const char __user *specialfile);
803asmlinkage long sys_mprotect(unsigned long start, size_t len,
804 unsigned long prot);
805asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
806asmlinkage long sys_mlock(unsigned long start, size_t len);
807asmlinkage long sys_munlock(unsigned long start, size_t len);
808asmlinkage long sys_mlockall(int flags);
809asmlinkage long sys_munlockall(void);
810asmlinkage long sys_mincore(unsigned long start, size_t len,
811 unsigned char __user * vec);
812asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
813asmlinkage long sys_process_madvise(int pidfd, const struct iovec __user *vec,
814 size_t vlen, int behavior, unsigned int flags);
815asmlinkage long sys_process_mrelease(int pidfd, unsigned int flags);
816asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
817 unsigned long prot, unsigned long pgoff,
818 unsigned long flags);
819asmlinkage long sys_mbind(unsigned long start, unsigned long len,
820 unsigned long mode,
821 const unsigned long __user *nmask,
822 unsigned long maxnode,
823 unsigned flags);
824asmlinkage long sys_get_mempolicy(int __user *policy,
825 unsigned long __user *nmask,
826 unsigned long maxnode,
827 unsigned long addr, unsigned long flags);
828asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
829 unsigned long maxnode);
830asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
831 const unsigned long __user *from,
832 const unsigned long __user *to);
833asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
834 const void __user * __user *pages,
835 const int __user *nodes,
836 int __user *status,
837 int flags);
838asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
839 siginfo_t __user *uinfo);
840asmlinkage long sys_perf_event_open(
841 struct perf_event_attr __user *attr_uptr,
842 pid_t pid, int cpu, int group_fd, unsigned long flags);
843asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
844asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
845 unsigned int vlen, unsigned flags,
846 struct __kernel_timespec __user *timeout);
847asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg,
848 unsigned int vlen, unsigned flags,
849 struct old_timespec32 __user *timeout);
850asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
851 int options, struct rusage __user *ru);
852asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
853 const struct rlimit64 __user *new_rlim,
854 struct rlimit64 __user *old_rlim);
855asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
856asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
857 u64 mask, int fd,
858 const char __user *pathname);
859asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
860 struct file_handle __user *handle,
861 int __user *mnt_id, int flag);
862asmlinkage long sys_open_by_handle_at(int mountdirfd,
863 struct file_handle __user *handle,
864 int flags);
865asmlinkage long sys_clock_adjtime(clockid_t which_clock,
866 struct __kernel_timex __user *tx);
867asmlinkage long sys_clock_adjtime32(clockid_t which_clock,
868 struct old_timex32 __user *tx);
869asmlinkage long sys_syncfs(int fd);
870asmlinkage long sys_setns(int fd, int nstype);
871asmlinkage long sys_pidfd_open(pid_t pid, unsigned int flags);
872asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
873 unsigned int vlen, unsigned flags);
874asmlinkage long sys_process_vm_readv(pid_t pid,
875 const struct iovec __user *lvec,
876 unsigned long liovcnt,
877 const struct iovec __user *rvec,
878 unsigned long riovcnt,
879 unsigned long flags);
880asmlinkage long sys_process_vm_writev(pid_t pid,
881 const struct iovec __user *lvec,
882 unsigned long liovcnt,
883 const struct iovec __user *rvec,
884 unsigned long riovcnt,
885 unsigned long flags);
886asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
887 unsigned long idx1, unsigned long idx2);
888asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
889asmlinkage long sys_sched_setattr(pid_t pid,
890 struct sched_attr __user *attr,
891 unsigned int flags);
892asmlinkage long sys_sched_getattr(pid_t pid,
893 struct sched_attr __user *attr,
894 unsigned int size,
895 unsigned int flags);
896asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
897 int newdfd, const char __user *newname,
898 unsigned int flags);
899asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
900 void __user *uargs);
901asmlinkage long sys_getrandom(char __user *buf, size_t count,
902 unsigned int flags);
903asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
904asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
905asmlinkage long sys_execveat(int dfd, const char __user *filename,
906 const char __user *const __user *argv,
907 const char __user *const __user *envp, int flags);
908asmlinkage long sys_userfaultfd(int flags);
909asmlinkage long sys_membarrier(int cmd, unsigned int flags, int cpu_id);
910asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
911asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
912 int fd_out, loff_t __user *off_out,
913 size_t len, unsigned int flags);
914asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
915 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
916 rwf_t flags);
917asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
918 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
919 rwf_t flags);
920asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
921 unsigned long prot, int pkey);
922asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
923asmlinkage long sys_pkey_free(int pkey);
924asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
925 unsigned mask, struct statx __user *buffer);
926asmlinkage long sys_rseq(struct rseq __user *rseq, uint32_t rseq_len,
927 int flags, uint32_t sig);
928asmlinkage long sys_open_tree(int dfd, const char __user *path, unsigned flags);
929asmlinkage long sys_move_mount(int from_dfd, const char __user *from_path,
930 int to_dfd, const char __user *to_path,
931 unsigned int ms_flags);
932asmlinkage long sys_mount_setattr(int dfd, const char __user *path,
933 unsigned int flags,
934 struct mount_attr __user *uattr, size_t usize);
935asmlinkage long sys_fsopen(const char __user *fs_name, unsigned int flags);
936asmlinkage long sys_fsconfig(int fs_fd, unsigned int cmd, const char __user *key,
937 const void __user *value, int aux);
938asmlinkage long sys_fsmount(int fs_fd, unsigned int flags, unsigned int ms_flags);
939asmlinkage long sys_fspick(int dfd, const char __user *path, unsigned int flags);
940asmlinkage long sys_pidfd_send_signal(int pidfd, int sig,
941 siginfo_t __user *info,
942 unsigned int flags);
943asmlinkage long sys_pidfd_getfd(int pidfd, int fd, unsigned int flags);
944asmlinkage long sys_landlock_create_ruleset(const struct landlock_ruleset_attr __user *attr,
945 size_t size, __u32 flags);
946asmlinkage long sys_landlock_add_rule(int ruleset_fd, enum landlock_rule_type rule_type,
947 const void __user *rule_attr, __u32 flags);
948asmlinkage long sys_landlock_restrict_self(int ruleset_fd, __u32 flags);
949asmlinkage long sys_memfd_secret(unsigned int flags);
950asmlinkage long sys_set_mempolicy_home_node(unsigned long start, unsigned long len,
951 unsigned long home_node,
952 unsigned long flags);
953asmlinkage long sys_cachestat(unsigned int fd,
954 struct cachestat_range __user *cstat_range,
955 struct cachestat __user *cstat, unsigned int flags);
956
957/*
958 * Architecture-specific system calls
959 */
960
961/* x86 */
962asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
963
964/* pciconfig: alpha, arm, arm64, ia64, sparc */
965asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
966 unsigned long off, unsigned long len,
967 void __user *buf);
968asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
969 unsigned long off, unsigned long len,
970 void __user *buf);
971asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
972
973/* powerpc */
974asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
975 __u32 __user *ustatus);
976asmlinkage long sys_spu_create(const char __user *name,
977 unsigned int flags, umode_t mode, int fd);
978
979
980/*
981 * Deprecated system calls which are still defined in
982 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
983 */
984
985/* __ARCH_WANT_SYSCALL_NO_AT */
986asmlinkage long sys_open(const char __user *filename,
987 int flags, umode_t mode);
988asmlinkage long sys_link(const char __user *oldname,
989 const char __user *newname);
990asmlinkage long sys_unlink(const char __user *pathname);
991asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
992 unsigned dev);
993asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
994asmlinkage long sys_chown(const char __user *filename,
995 uid_t user, gid_t group);
996asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
997asmlinkage long sys_rmdir(const char __user *pathname);
998asmlinkage long sys_lchown(const char __user *filename,
999 uid_t user, gid_t group);
1000asmlinkage long sys_access(const char __user *filename, int mode);
1001asmlinkage long sys_rename(const char __user *oldname,
1002 const char __user *newname);
1003asmlinkage long sys_symlink(const char __user *old, const char __user *new);
1004#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
1005asmlinkage long sys_stat64(const char __user *filename,
1006 struct stat64 __user *statbuf);
1007asmlinkage long sys_lstat64(const char __user *filename,
1008 struct stat64 __user *statbuf);
1009#endif
1010
1011/* __ARCH_WANT_SYSCALL_NO_FLAGS */
1012asmlinkage long sys_pipe(int __user *fildes);
1013asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
1014asmlinkage long sys_epoll_create(int size);
1015asmlinkage long sys_inotify_init(void);
1016asmlinkage long sys_eventfd(unsigned int count);
1017asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
1018
1019/* __ARCH_WANT_SYSCALL_OFF_T */
1020asmlinkage long sys_sendfile(int out_fd, int in_fd,
1021 off_t __user *offset, size_t count);
1022asmlinkage long sys_newstat(const char __user *filename,
1023 struct stat __user *statbuf);
1024asmlinkage long sys_newlstat(const char __user *filename,
1025 struct stat __user *statbuf);
1026asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
1027
1028/* __ARCH_WANT_SYSCALL_DEPRECATED */
1029asmlinkage long sys_alarm(unsigned int seconds);
1030asmlinkage long sys_getpgrp(void);
1031asmlinkage long sys_pause(void);
1032asmlinkage long sys_time(__kernel_old_time_t __user *tloc);
1033asmlinkage long sys_time32(old_time32_t __user *tloc);
1034#ifdef __ARCH_WANT_SYS_UTIME
1035asmlinkage long sys_utime(char __user *filename,
1036 struct utimbuf __user *times);
1037asmlinkage long sys_utimes(char __user *filename,
1038 struct __kernel_old_timeval __user *utimes);
1039asmlinkage long sys_futimesat(int dfd, const char __user *filename,
1040 struct __kernel_old_timeval __user *utimes);
1041#endif
1042asmlinkage long sys_futimesat_time32(unsigned int dfd,
1043 const char __user *filename,
1044 struct old_timeval32 __user *t);
1045asmlinkage long sys_utime32(const char __user *filename,
1046 struct old_utimbuf32 __user *t);
1047asmlinkage long sys_utimes_time32(const char __user *filename,
1048 struct old_timeval32 __user *t);
1049asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
1050asmlinkage long sys_getdents(unsigned int fd,
1051 struct linux_dirent __user *dirent,
1052 unsigned int count);
1053asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
1054 fd_set __user *exp, struct __kernel_old_timeval __user *tvp);
1055asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
1056 int timeout);
1057asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
1058 int maxevents, int timeout);
1059asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
1060asmlinkage long sys_vfork(void);
1061asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
1062asmlinkage long sys_send(int, void __user *, size_t, unsigned);
1063asmlinkage long sys_oldumount(char __user *name);
1064asmlinkage long sys_uselib(const char __user *library);
1065asmlinkage long sys_sysfs(int option,
1066 unsigned long arg1, unsigned long arg2);
1067asmlinkage long sys_fork(void);
1068
1069/* obsolete */
1070asmlinkage long sys_stime(__kernel_old_time_t __user *tptr);
1071asmlinkage long sys_stime32(old_time32_t __user *tptr);
1072
1073/* obsolete */
1074asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1075asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1076 old_sigset_t __user *oset);
1077#ifdef CONFIG_OLD_SIGSUSPEND
1078asmlinkage long sys_sigsuspend(old_sigset_t mask);
1079#endif
1080
1081#ifdef CONFIG_OLD_SIGSUSPEND3
1082asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1083#endif
1084
1085#ifdef CONFIG_OLD_SIGACTION
1086asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1087 struct old_sigaction __user *);
1088#endif
1089asmlinkage long sys_sgetmask(void);
1090asmlinkage long sys_ssetmask(int newmask);
1091asmlinkage long sys_signal(int sig, __sighandler_t handler);
1092
1093/* obsolete */
1094asmlinkage long sys_nice(int increment);
1095
1096/* obsolete */
1097asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1098 unsigned long cmdline_len,
1099 const char __user *cmdline_ptr,
1100 unsigned long flags);
1101
1102/* obsolete */
1103asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1104
1105/* obsolete */
1106#ifdef CONFIG_HAVE_UID16
1107asmlinkage long sys_chown16(const char __user *filename,
1108 old_uid_t user, old_gid_t group);
1109asmlinkage long sys_lchown16(const char __user *filename,
1110 old_uid_t user, old_gid_t group);
1111asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1112asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1113asmlinkage long sys_setgid16(old_gid_t gid);
1114asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1115asmlinkage long sys_setuid16(old_uid_t uid);
1116asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1117asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1118 old_uid_t __user *euid, old_uid_t __user *suid);
1119asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1120asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1121 old_gid_t __user *egid, old_gid_t __user *sgid);
1122asmlinkage long sys_setfsuid16(old_uid_t uid);
1123asmlinkage long sys_setfsgid16(old_gid_t gid);
1124asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1125asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1126asmlinkage long sys_getuid16(void);
1127asmlinkage long sys_geteuid16(void);
1128asmlinkage long sys_getgid16(void);
1129asmlinkage long sys_getegid16(void);
1130#endif
1131
1132/* obsolete */
1133asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1134
1135/* obsolete */
1136asmlinkage long sys_stat(const char __user *filename,
1137 struct __old_kernel_stat __user *statbuf);
1138asmlinkage long sys_lstat(const char __user *filename,
1139 struct __old_kernel_stat __user *statbuf);
1140asmlinkage long sys_fstat(unsigned int fd,
1141 struct __old_kernel_stat __user *statbuf);
1142asmlinkage long sys_readlink(const char __user *path,
1143 char __user *buf, int bufsiz);
1144
1145/* obsolete */
1146asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1147
1148/* obsolete */
1149asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1150
1151/* obsolete */
1152asmlinkage long sys_gethostname(char __user *name, int len);
1153asmlinkage long sys_uname(struct old_utsname __user *);
1154asmlinkage long sys_olduname(struct oldold_utsname __user *);
1155#ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1156asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1157#endif
1158
1159/* obsolete */
1160asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1161 unsigned long third, void __user *ptr, long fifth);
1162
1163/* obsolete */
1164asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1165 unsigned long prot, unsigned long flags,
1166 unsigned long fd, unsigned long pgoff);
1167asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1168
1169
1170/*
1171 * Not a real system call, but a placeholder for syscalls which are
1172 * not implemented -- see kernel/sys_ni.c
1173 */
1174asmlinkage long sys_ni_syscall(void);
1175
1176#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1177
1178asmlinkage long sys_ni_posix_timers(void);
1179
1180/*
1181 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1182 * Instead, use one of the functions which work equivalently, such as
1183 * the ksys_xyzyyz() functions prototyped below.
1184 */
1185ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1186int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1187ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1188void ksys_sync(void);
1189int ksys_unshare(unsigned long unshare_flags);
1190int ksys_setsid(void);
1191int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1192 unsigned int flags);
1193ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1194 loff_t pos);
1195ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1196 size_t count, loff_t pos);
1197int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1198#ifdef CONFIG_ADVISE_SYSCALLS
1199int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1200#else
1201static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1202 int advice)
1203{
1204 return -EINVAL;
1205}
1206#endif
1207unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1208 unsigned long prot, unsigned long flags,
1209 unsigned long fd, unsigned long pgoff);
1210ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1211int ksys_ipc(unsigned int call, int first, unsigned long second,
1212 unsigned long third, void __user * ptr, long fifth);
1213int compat_ksys_ipc(u32 call, int first, int second,
1214 u32 third, u32 ptr, u32 fifth);
1215
1216/*
1217 * The following kernel syscall equivalents are just wrappers to fs-internal
1218 * functions. Therefore, provide stubs to be inlined at the callsites.
1219 */
1220extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1221 gid_t group, int flag);
1222
1223static inline long ksys_chown(const char __user *filename, uid_t user,
1224 gid_t group)
1225{
1226 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1227}
1228
1229static inline long ksys_lchown(const char __user *filename, uid_t user,
1230 gid_t group)
1231{
1232 return do_fchownat(AT_FDCWD, filename, user, group,
1233 AT_SYMLINK_NOFOLLOW);
1234}
1235
1236extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1237
1238static inline long ksys_ftruncate(unsigned int fd, loff_t length)
1239{
1240 return do_sys_ftruncate(fd, length, 1);
1241}
1242
1243extern long do_sys_truncate(const char __user *pathname, loff_t length);
1244
1245static inline long ksys_truncate(const char __user *pathname, loff_t length)
1246{
1247 return do_sys_truncate(pathname, length);
1248}
1249
1250static inline unsigned int ksys_personality(unsigned int personality)
1251{
1252 unsigned int old = current->personality;
1253
1254 if (personality != 0xffffffff)
1255 set_personality(personality);
1256
1257 return old;
1258}
1259
1260/* for __ARCH_WANT_SYS_IPC */
1261long ksys_semtimedop(int semid, struct sembuf __user *tsops,
1262 unsigned int nsops,
1263 const struct __kernel_timespec __user *timeout);
1264long ksys_semget(key_t key, int nsems, int semflg);
1265long ksys_old_semctl(int semid, int semnum, int cmd, unsigned long arg);
1266long ksys_msgget(key_t key, int msgflg);
1267long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
1268long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1269 long msgtyp, int msgflg);
1270long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz,
1271 int msgflg);
1272long ksys_shmget(key_t key, size_t size, int shmflg);
1273long ksys_shmdt(char __user *shmaddr);
1274long ksys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
1275long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems,
1276 unsigned int nsops,
1277 const struct old_timespec32 __user *timeout);
1278long __do_semtimedop(int semid, struct sembuf *tsems, unsigned int nsops,
1279 const struct timespec64 *timeout,
1280 struct ipc_namespace *ns);
1281
1282int __sys_getsockopt(int fd, int level, int optname, char __user *optval,
1283 int __user *optlen);
1284int __sys_setsockopt(int fd, int level, int optname, char __user *optval,
1285 int optlen);
1286#endif