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1/*
2 * syscalls.h - Linux syscall interfaces (non-arch-specific)
3 *
4 * Copyright (c) 2004 Randy Dunlap
5 * Copyright (c) 2004 Open Source Development Labs
6 *
7 * This file is released under the GPLv2.
8 * See the file COPYING for more details.
9 */
10
11#ifndef _LINUX_SYSCALLS_H
12#define _LINUX_SYSCALLS_H
13
14struct epoll_event;
15struct iattr;
16struct inode;
17struct iocb;
18struct io_event;
19struct iovec;
20struct itimerspec;
21struct itimerval;
22struct kexec_segment;
23struct linux_dirent;
24struct linux_dirent64;
25struct list_head;
26struct mmap_arg_struct;
27struct msgbuf;
28struct msghdr;
29struct mmsghdr;
30struct msqid_ds;
31struct new_utsname;
32struct nfsctl_arg;
33struct __old_kernel_stat;
34struct oldold_utsname;
35struct old_utsname;
36struct pollfd;
37struct rlimit;
38struct rlimit64;
39struct rusage;
40struct sched_param;
41struct sched_attr;
42struct sel_arg_struct;
43struct semaphore;
44struct sembuf;
45struct shmid_ds;
46struct sockaddr;
47struct stat;
48struct stat64;
49struct statfs;
50struct statfs64;
51struct __sysctl_args;
52struct sysinfo;
53struct timespec;
54struct timeval;
55struct timex;
56struct timezone;
57struct tms;
58struct utimbuf;
59struct mq_attr;
60struct compat_stat;
61struct compat_timeval;
62struct robust_list_head;
63struct getcpu_cache;
64struct old_linux_dirent;
65struct perf_event_attr;
66struct file_handle;
67struct sigaltstack;
68
69#include <linux/types.h>
70#include <linux/aio_abi.h>
71#include <linux/capability.h>
72#include <linux/signal.h>
73#include <linux/list.h>
74#include <linux/bug.h>
75#include <linux/sem.h>
76#include <asm/siginfo.h>
77#include <linux/unistd.h>
78#include <linux/quota.h>
79#include <linux/key.h>
80#include <trace/syscall.h>
81
82/*
83 * __MAP - apply a macro to syscall arguments
84 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
85 * m(t1, a1), m(t2, a2), ..., m(tn, an)
86 * The first argument must be equal to the amount of type/name
87 * pairs given. Note that this list of pairs (i.e. the arguments
88 * of __MAP starting at the third one) is in the same format as
89 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
90 */
91#define __MAP0(m,...)
92#define __MAP1(m,t,a) m(t,a)
93#define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
94#define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
95#define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
96#define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
97#define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
98#define __MAP(n,...) __MAP##n(__VA_ARGS__)
99
100#define __SC_DECL(t, a) t a
101#define __TYPE_IS_L(t) (__same_type((t)0, 0L))
102#define __TYPE_IS_UL(t) (__same_type((t)0, 0UL))
103#define __TYPE_IS_LL(t) (__same_type((t)0, 0LL) || __same_type((t)0, 0ULL))
104#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
105#define __SC_CAST(t, a) (t) a
106#define __SC_ARGS(t, a) a
107#define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
108
109#ifdef CONFIG_FTRACE_SYSCALLS
110#define __SC_STR_ADECL(t, a) #a
111#define __SC_STR_TDECL(t, a) #t
112
113extern struct ftrace_event_class event_class_syscall_enter;
114extern struct ftrace_event_class event_class_syscall_exit;
115extern struct trace_event_functions enter_syscall_print_funcs;
116extern struct trace_event_functions exit_syscall_print_funcs;
117
118#define SYSCALL_TRACE_ENTER_EVENT(sname) \
119 static struct syscall_metadata __syscall_meta_##sname; \
120 static struct ftrace_event_call __used \
121 event_enter_##sname = { \
122 .class = &event_class_syscall_enter, \
123 { \
124 .name = "sys_enter"#sname, \
125 }, \
126 .event.funcs = &enter_syscall_print_funcs, \
127 .data = (void *)&__syscall_meta_##sname,\
128 .flags = TRACE_EVENT_FL_CAP_ANY, \
129 }; \
130 static struct ftrace_event_call __used \
131 __attribute__((section("_ftrace_events"))) \
132 *__event_enter_##sname = &event_enter_##sname;
133
134#define SYSCALL_TRACE_EXIT_EVENT(sname) \
135 static struct syscall_metadata __syscall_meta_##sname; \
136 static struct ftrace_event_call __used \
137 event_exit_##sname = { \
138 .class = &event_class_syscall_exit, \
139 { \
140 .name = "sys_exit"#sname, \
141 }, \
142 .event.funcs = &exit_syscall_print_funcs, \
143 .data = (void *)&__syscall_meta_##sname,\
144 .flags = TRACE_EVENT_FL_CAP_ANY, \
145 }; \
146 static struct ftrace_event_call __used \
147 __attribute__((section("_ftrace_events"))) \
148 *__event_exit_##sname = &event_exit_##sname;
149
150#define SYSCALL_METADATA(sname, nb, ...) \
151 static const char *types_##sname[] = { \
152 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
153 }; \
154 static const char *args_##sname[] = { \
155 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
156 }; \
157 SYSCALL_TRACE_ENTER_EVENT(sname); \
158 SYSCALL_TRACE_EXIT_EVENT(sname); \
159 static struct syscall_metadata __used \
160 __syscall_meta_##sname = { \
161 .name = "sys"#sname, \
162 .syscall_nr = -1, /* Filled in at boot */ \
163 .nb_args = nb, \
164 .types = nb ? types_##sname : NULL, \
165 .args = nb ? args_##sname : NULL, \
166 .enter_event = &event_enter_##sname, \
167 .exit_event = &event_exit_##sname, \
168 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
169 }; \
170 static struct syscall_metadata __used \
171 __attribute__((section("__syscalls_metadata"))) \
172 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
173#else
174#define SYSCALL_METADATA(sname, nb, ...)
175#endif
176
177#define SYSCALL_DEFINE0(sname) \
178 SYSCALL_METADATA(_##sname, 0); \
179 asmlinkage long sys_##sname(void)
180
181#define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
182#define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
183#define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
184#define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
185#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
186#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
187
188#define SYSCALL_DEFINEx(x, sname, ...) \
189 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
190 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
191
192#define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
193#define __SYSCALL_DEFINEx(x, name, ...) \
194 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
195 __attribute__((alias(__stringify(SyS##name)))); \
196 static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \
197 asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
198 asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
199 { \
200 long ret = SYSC##name(__MAP(x,__SC_CAST,__VA_ARGS__)); \
201 __MAP(x,__SC_TEST,__VA_ARGS__); \
202 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
203 return ret; \
204 } \
205 static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
206
207asmlinkage long sys32_quotactl(unsigned int cmd, const char __user *special,
208 qid_t id, void __user *addr);
209asmlinkage long sys_time(time_t __user *tloc);
210asmlinkage long sys_stime(time_t __user *tptr);
211asmlinkage long sys_gettimeofday(struct timeval __user *tv,
212 struct timezone __user *tz);
213asmlinkage long sys_settimeofday(struct timeval __user *tv,
214 struct timezone __user *tz);
215asmlinkage long sys_adjtimex(struct timex __user *txc_p);
216
217asmlinkage long sys_times(struct tms __user *tbuf);
218
219asmlinkage long sys_gettid(void);
220asmlinkage long sys_nanosleep(struct timespec __user *rqtp, struct timespec __user *rmtp);
221asmlinkage long sys_alarm(unsigned int seconds);
222asmlinkage long sys_getpid(void);
223asmlinkage long sys_getppid(void);
224asmlinkage long sys_getuid(void);
225asmlinkage long sys_geteuid(void);
226asmlinkage long sys_getgid(void);
227asmlinkage long sys_getegid(void);
228asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
229asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
230asmlinkage long sys_getpgid(pid_t pid);
231asmlinkage long sys_getpgrp(void);
232asmlinkage long sys_getsid(pid_t pid);
233asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
234
235asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
236asmlinkage long sys_setgid(gid_t gid);
237asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
238asmlinkage long sys_setuid(uid_t uid);
239asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
240asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
241asmlinkage long sys_setfsuid(uid_t uid);
242asmlinkage long sys_setfsgid(gid_t gid);
243asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
244asmlinkage long sys_setsid(void);
245asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
246
247asmlinkage long sys_acct(const char __user *name);
248asmlinkage long sys_capget(cap_user_header_t header,
249 cap_user_data_t dataptr);
250asmlinkage long sys_capset(cap_user_header_t header,
251 const cap_user_data_t data);
252asmlinkage long sys_personality(unsigned int personality);
253
254asmlinkage long sys_sigpending(old_sigset_t __user *set);
255asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
256 old_sigset_t __user *oset);
257asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
258 struct sigaltstack __user *uoss);
259
260asmlinkage long sys_getitimer(int which, struct itimerval __user *value);
261asmlinkage long sys_setitimer(int which,
262 struct itimerval __user *value,
263 struct itimerval __user *ovalue);
264asmlinkage long sys_timer_create(clockid_t which_clock,
265 struct sigevent __user *timer_event_spec,
266 timer_t __user * created_timer_id);
267asmlinkage long sys_timer_gettime(timer_t timer_id,
268 struct itimerspec __user *setting);
269asmlinkage long sys_timer_getoverrun(timer_t timer_id);
270asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
271 const struct itimerspec __user *new_setting,
272 struct itimerspec __user *old_setting);
273asmlinkage long sys_timer_delete(timer_t timer_id);
274asmlinkage long sys_clock_settime(clockid_t which_clock,
275 const struct timespec __user *tp);
276asmlinkage long sys_clock_gettime(clockid_t which_clock,
277 struct timespec __user *tp);
278asmlinkage long sys_clock_adjtime(clockid_t which_clock,
279 struct timex __user *tx);
280asmlinkage long sys_clock_getres(clockid_t which_clock,
281 struct timespec __user *tp);
282asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
283 const struct timespec __user *rqtp,
284 struct timespec __user *rmtp);
285
286asmlinkage long sys_nice(int increment);
287asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
288 struct sched_param __user *param);
289asmlinkage long sys_sched_setparam(pid_t pid,
290 struct sched_param __user *param);
291asmlinkage long sys_sched_setattr(pid_t pid,
292 struct sched_attr __user *attr,
293 unsigned int flags);
294asmlinkage long sys_sched_getscheduler(pid_t pid);
295asmlinkage long sys_sched_getparam(pid_t pid,
296 struct sched_param __user *param);
297asmlinkage long sys_sched_getattr(pid_t pid,
298 struct sched_attr __user *attr,
299 unsigned int size,
300 unsigned int flags);
301asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
302 unsigned long __user *user_mask_ptr);
303asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
304 unsigned long __user *user_mask_ptr);
305asmlinkage long sys_sched_yield(void);
306asmlinkage long sys_sched_get_priority_max(int policy);
307asmlinkage long sys_sched_get_priority_min(int policy);
308asmlinkage long sys_sched_rr_get_interval(pid_t pid,
309 struct timespec __user *interval);
310asmlinkage long sys_setpriority(int which, int who, int niceval);
311asmlinkage long sys_getpriority(int which, int who);
312
313asmlinkage long sys_shutdown(int, int);
314asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
315 void __user *arg);
316asmlinkage long sys_restart_syscall(void);
317asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
318 struct kexec_segment __user *segments,
319 unsigned long flags);
320
321asmlinkage long sys_exit(int error_code);
322asmlinkage long sys_exit_group(int error_code);
323asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
324 int options, struct rusage __user *ru);
325asmlinkage long sys_waitid(int which, pid_t pid,
326 struct siginfo __user *infop,
327 int options, struct rusage __user *ru);
328asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
329asmlinkage long sys_set_tid_address(int __user *tidptr);
330asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
331 struct timespec __user *utime, u32 __user *uaddr2,
332 u32 val3);
333
334asmlinkage long sys_init_module(void __user *umod, unsigned long len,
335 const char __user *uargs);
336asmlinkage long sys_delete_module(const char __user *name_user,
337 unsigned int flags);
338
339#ifdef CONFIG_OLD_SIGSUSPEND
340asmlinkage long sys_sigsuspend(old_sigset_t mask);
341#endif
342
343#ifdef CONFIG_OLD_SIGSUSPEND3
344asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
345#endif
346
347asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
348
349#ifdef CONFIG_OLD_SIGACTION
350asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
351 struct old_sigaction __user *);
352#endif
353
354#ifndef CONFIG_ODD_RT_SIGACTION
355asmlinkage long sys_rt_sigaction(int,
356 const struct sigaction __user *,
357 struct sigaction __user *,
358 size_t);
359#endif
360asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
361 sigset_t __user *oset, size_t sigsetsize);
362asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
363asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
364 siginfo_t __user *uinfo,
365 const struct timespec __user *uts,
366 size_t sigsetsize);
367asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
368 siginfo_t __user *uinfo);
369asmlinkage long sys_kill(int pid, int sig);
370asmlinkage long sys_tgkill(int tgid, int pid, int sig);
371asmlinkage long sys_tkill(int pid, int sig);
372asmlinkage long sys_rt_sigqueueinfo(int pid, int sig, siginfo_t __user *uinfo);
373asmlinkage long sys_sgetmask(void);
374asmlinkage long sys_ssetmask(int newmask);
375asmlinkage long sys_signal(int sig, __sighandler_t handler);
376asmlinkage long sys_pause(void);
377
378asmlinkage long sys_sync(void);
379asmlinkage long sys_fsync(unsigned int fd);
380asmlinkage long sys_fdatasync(unsigned int fd);
381asmlinkage long sys_bdflush(int func, long data);
382asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
383 char __user *type, unsigned long flags,
384 void __user *data);
385asmlinkage long sys_umount(char __user *name, int flags);
386asmlinkage long sys_oldumount(char __user *name);
387asmlinkage long sys_truncate(const char __user *path, long length);
388asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
389asmlinkage long sys_stat(const char __user *filename,
390 struct __old_kernel_stat __user *statbuf);
391asmlinkage long sys_statfs(const char __user * path,
392 struct statfs __user *buf);
393asmlinkage long sys_statfs64(const char __user *path, size_t sz,
394 struct statfs64 __user *buf);
395asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
396asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
397 struct statfs64 __user *buf);
398asmlinkage long sys_lstat(const char __user *filename,
399 struct __old_kernel_stat __user *statbuf);
400asmlinkage long sys_fstat(unsigned int fd,
401 struct __old_kernel_stat __user *statbuf);
402asmlinkage long sys_newstat(const char __user *filename,
403 struct stat __user *statbuf);
404asmlinkage long sys_newlstat(const char __user *filename,
405 struct stat __user *statbuf);
406asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
407asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
408#if BITS_PER_LONG == 32
409asmlinkage long sys_stat64(const char __user *filename,
410 struct stat64 __user *statbuf);
411asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
412asmlinkage long sys_lstat64(const char __user *filename,
413 struct stat64 __user *statbuf);
414asmlinkage long sys_truncate64(const char __user *path, loff_t length);
415asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
416#endif
417
418asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
419 const void __user *value, size_t size, int flags);
420asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
421 const void __user *value, size_t size, int flags);
422asmlinkage long sys_fsetxattr(int fd, const char __user *name,
423 const void __user *value, size_t size, int flags);
424asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
425 void __user *value, size_t size);
426asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
427 void __user *value, size_t size);
428asmlinkage long sys_fgetxattr(int fd, const char __user *name,
429 void __user *value, size_t size);
430asmlinkage long sys_listxattr(const char __user *path, char __user *list,
431 size_t size);
432asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
433 size_t size);
434asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
435asmlinkage long sys_removexattr(const char __user *path,
436 const char __user *name);
437asmlinkage long sys_lremovexattr(const char __user *path,
438 const char __user *name);
439asmlinkage long sys_fremovexattr(int fd, const char __user *name);
440
441asmlinkage long sys_brk(unsigned long brk);
442asmlinkage long sys_mprotect(unsigned long start, size_t len,
443 unsigned long prot);
444asmlinkage long sys_mremap(unsigned long addr,
445 unsigned long old_len, unsigned long new_len,
446 unsigned long flags, unsigned long new_addr);
447asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
448 unsigned long prot, unsigned long pgoff,
449 unsigned long flags);
450asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
451asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
452asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
453asmlinkage long sys_munmap(unsigned long addr, size_t len);
454asmlinkage long sys_mlock(unsigned long start, size_t len);
455asmlinkage long sys_munlock(unsigned long start, size_t len);
456asmlinkage long sys_mlockall(int flags);
457asmlinkage long sys_munlockall(void);
458asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
459asmlinkage long sys_mincore(unsigned long start, size_t len,
460 unsigned char __user * vec);
461
462asmlinkage long sys_pivot_root(const char __user *new_root,
463 const char __user *put_old);
464asmlinkage long sys_chroot(const char __user *filename);
465asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
466 unsigned dev);
467asmlinkage long sys_link(const char __user *oldname,
468 const char __user *newname);
469asmlinkage long sys_symlink(const char __user *old, const char __user *new);
470asmlinkage long sys_unlink(const char __user *pathname);
471asmlinkage long sys_rename(const char __user *oldname,
472 const char __user *newname);
473asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
474asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
475
476asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
477#if BITS_PER_LONG == 32
478asmlinkage long sys_fcntl64(unsigned int fd,
479 unsigned int cmd, unsigned long arg);
480#endif
481asmlinkage long sys_pipe(int __user *fildes);
482asmlinkage long sys_pipe2(int __user *fildes, int flags);
483asmlinkage long sys_dup(unsigned int fildes);
484asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
485asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
486asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
487asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
488 unsigned long arg);
489asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
490asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
491asmlinkage long sys_io_destroy(aio_context_t ctx);
492asmlinkage long sys_io_getevents(aio_context_t ctx_id,
493 long min_nr,
494 long nr,
495 struct io_event __user *events,
496 struct timespec __user *timeout);
497asmlinkage long sys_io_submit(aio_context_t, long,
498 struct iocb __user * __user *);
499asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
500 struct io_event __user *result);
501asmlinkage long sys_sendfile(int out_fd, int in_fd,
502 off_t __user *offset, size_t count);
503asmlinkage long sys_sendfile64(int out_fd, int in_fd,
504 loff_t __user *offset, size_t count);
505asmlinkage long sys_readlink(const char __user *path,
506 char __user *buf, int bufsiz);
507asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
508asmlinkage long sys_open(const char __user *filename,
509 int flags, umode_t mode);
510asmlinkage long sys_close(unsigned int fd);
511asmlinkage long sys_access(const char __user *filename, int mode);
512asmlinkage long sys_vhangup(void);
513asmlinkage long sys_chown(const char __user *filename,
514 uid_t user, gid_t group);
515asmlinkage long sys_lchown(const char __user *filename,
516 uid_t user, gid_t group);
517asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
518#ifdef CONFIG_UID16
519asmlinkage long sys_chown16(const char __user *filename,
520 old_uid_t user, old_gid_t group);
521asmlinkage long sys_lchown16(const char __user *filename,
522 old_uid_t user, old_gid_t group);
523asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
524asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
525asmlinkage long sys_setgid16(old_gid_t gid);
526asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
527asmlinkage long sys_setuid16(old_uid_t uid);
528asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
529asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
530 old_uid_t __user *euid, old_uid_t __user *suid);
531asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
532asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
533 old_gid_t __user *egid, old_gid_t __user *sgid);
534asmlinkage long sys_setfsuid16(old_uid_t uid);
535asmlinkage long sys_setfsgid16(old_gid_t gid);
536asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
537asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
538asmlinkage long sys_getuid16(void);
539asmlinkage long sys_geteuid16(void);
540asmlinkage long sys_getgid16(void);
541asmlinkage long sys_getegid16(void);
542#endif
543
544asmlinkage long sys_utime(char __user *filename,
545 struct utimbuf __user *times);
546asmlinkage long sys_utimes(char __user *filename,
547 struct timeval __user *utimes);
548asmlinkage long sys_lseek(unsigned int fd, off_t offset,
549 unsigned int whence);
550asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
551 unsigned long offset_low, loff_t __user *result,
552 unsigned int whence);
553asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
554asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
555asmlinkage long sys_readv(unsigned long fd,
556 const struct iovec __user *vec,
557 unsigned long vlen);
558asmlinkage long sys_write(unsigned int fd, const char __user *buf,
559 size_t count);
560asmlinkage long sys_writev(unsigned long fd,
561 const struct iovec __user *vec,
562 unsigned long vlen);
563asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
564 size_t count, loff_t pos);
565asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
566 size_t count, loff_t pos);
567asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
568 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
569asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
570 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
571asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
572asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
573asmlinkage long sys_chdir(const char __user *filename);
574asmlinkage long sys_fchdir(unsigned int fd);
575asmlinkage long sys_rmdir(const char __user *pathname);
576asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len);
577asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
578 qid_t id, void __user *addr);
579asmlinkage long sys_getdents(unsigned int fd,
580 struct linux_dirent __user *dirent,
581 unsigned int count);
582asmlinkage long sys_getdents64(unsigned int fd,
583 struct linux_dirent64 __user *dirent,
584 unsigned int count);
585
586asmlinkage long sys_setsockopt(int fd, int level, int optname,
587 char __user *optval, int optlen);
588asmlinkage long sys_getsockopt(int fd, int level, int optname,
589 char __user *optval, int __user *optlen);
590asmlinkage long sys_bind(int, struct sockaddr __user *, int);
591asmlinkage long sys_connect(int, struct sockaddr __user *, int);
592asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
593asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
594asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
595asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
596asmlinkage long sys_send(int, void __user *, size_t, unsigned);
597asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
598 struct sockaddr __user *, int);
599asmlinkage long sys_sendmsg(int fd, struct msghdr __user *msg, unsigned flags);
600asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
601 unsigned int vlen, unsigned flags);
602asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
603asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
604 struct sockaddr __user *, int __user *);
605asmlinkage long sys_recvmsg(int fd, struct msghdr __user *msg, unsigned flags);
606asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
607 unsigned int vlen, unsigned flags,
608 struct timespec __user *timeout);
609asmlinkage long sys_socket(int, int, int);
610asmlinkage long sys_socketpair(int, int, int, int __user *);
611asmlinkage long sys_socketcall(int call, unsigned long __user *args);
612asmlinkage long sys_listen(int, int);
613asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
614 int timeout);
615asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
616 fd_set __user *exp, struct timeval __user *tvp);
617asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
618asmlinkage long sys_epoll_create(int size);
619asmlinkage long sys_epoll_create1(int flags);
620asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
621 struct epoll_event __user *event);
622asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
623 int maxevents, int timeout);
624asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
625 int maxevents, int timeout,
626 const sigset_t __user *sigmask,
627 size_t sigsetsize);
628asmlinkage long sys_gethostname(char __user *name, int len);
629asmlinkage long sys_sethostname(char __user *name, int len);
630asmlinkage long sys_setdomainname(char __user *name, int len);
631asmlinkage long sys_newuname(struct new_utsname __user *name);
632asmlinkage long sys_uname(struct old_utsname __user *);
633asmlinkage long sys_olduname(struct oldold_utsname __user *);
634
635asmlinkage long sys_getrlimit(unsigned int resource,
636 struct rlimit __user *rlim);
637#if defined(COMPAT_RLIM_OLD_INFINITY) || !(defined(CONFIG_IA64))
638asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
639#endif
640asmlinkage long sys_setrlimit(unsigned int resource,
641 struct rlimit __user *rlim);
642asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
643 const struct rlimit64 __user *new_rlim,
644 struct rlimit64 __user *old_rlim);
645asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
646asmlinkage long sys_umask(int mask);
647
648asmlinkage long sys_msgget(key_t key, int msgflg);
649asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
650 size_t msgsz, int msgflg);
651asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
652 size_t msgsz, long msgtyp, int msgflg);
653asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
654
655asmlinkage long sys_semget(key_t key, int nsems, int semflg);
656asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
657 unsigned nsops);
658asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
659asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
660 unsigned nsops,
661 const struct timespec __user *timeout);
662asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
663asmlinkage long sys_shmget(key_t key, size_t size, int flag);
664asmlinkage long sys_shmdt(char __user *shmaddr);
665asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
666asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
667 unsigned long third, void __user *ptr, long fifth);
668
669asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
670asmlinkage long sys_mq_unlink(const char __user *name);
671asmlinkage long sys_mq_timedsend(mqd_t mqdes, const char __user *msg_ptr, size_t msg_len, unsigned int msg_prio, const struct timespec __user *abs_timeout);
672asmlinkage long sys_mq_timedreceive(mqd_t mqdes, char __user *msg_ptr, size_t msg_len, unsigned int __user *msg_prio, const struct timespec __user *abs_timeout);
673asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
674asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
675
676asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
677asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
678 unsigned long off, unsigned long len,
679 void __user *buf);
680asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
681 unsigned long off, unsigned long len,
682 void __user *buf);
683
684asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
685 unsigned long arg4, unsigned long arg5);
686asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
687asmlinkage long sys_swapoff(const char __user *specialfile);
688asmlinkage long sys_sysctl(struct __sysctl_args __user *args);
689asmlinkage long sys_sysinfo(struct sysinfo __user *info);
690asmlinkage long sys_sysfs(int option,
691 unsigned long arg1, unsigned long arg2);
692asmlinkage long sys_syslog(int type, char __user *buf, int len);
693asmlinkage long sys_uselib(const char __user *library);
694asmlinkage long sys_ni_syscall(void);
695asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
696 unsigned long data);
697
698asmlinkage long sys_add_key(const char __user *_type,
699 const char __user *_description,
700 const void __user *_payload,
701 size_t plen,
702 key_serial_t destringid);
703
704asmlinkage long sys_request_key(const char __user *_type,
705 const char __user *_description,
706 const char __user *_callout_info,
707 key_serial_t destringid);
708
709asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
710 unsigned long arg4, unsigned long arg5);
711
712asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
713asmlinkage long sys_ioprio_get(int which, int who);
714asmlinkage long sys_set_mempolicy(int mode, unsigned long __user *nmask,
715 unsigned long maxnode);
716asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
717 const unsigned long __user *from,
718 const unsigned long __user *to);
719asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
720 const void __user * __user *pages,
721 const int __user *nodes,
722 int __user *status,
723 int flags);
724asmlinkage long sys_mbind(unsigned long start, unsigned long len,
725 unsigned long mode,
726 unsigned long __user *nmask,
727 unsigned long maxnode,
728 unsigned flags);
729asmlinkage long sys_get_mempolicy(int __user *policy,
730 unsigned long __user *nmask,
731 unsigned long maxnode,
732 unsigned long addr, unsigned long flags);
733
734asmlinkage long sys_inotify_init(void);
735asmlinkage long sys_inotify_init1(int flags);
736asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
737 u32 mask);
738asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
739
740asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
741 __u32 __user *ustatus);
742asmlinkage long sys_spu_create(const char __user *name,
743 unsigned int flags, umode_t mode, int fd);
744
745asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
746 unsigned dev);
747asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
748asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
749asmlinkage long sys_symlinkat(const char __user * oldname,
750 int newdfd, const char __user * newname);
751asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
752 int newdfd, const char __user *newname, int flags);
753asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
754 int newdfd, const char __user * newname);
755asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
756 int newdfd, const char __user *newname,
757 unsigned int flags);
758asmlinkage long sys_futimesat(int dfd, const char __user *filename,
759 struct timeval __user *utimes);
760asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
761asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
762 umode_t mode);
763asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
764 gid_t group, int flag);
765asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
766 umode_t mode);
767asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
768 struct stat __user *statbuf, int flag);
769asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
770 struct stat64 __user *statbuf, int flag);
771asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
772 int bufsiz);
773asmlinkage long sys_utimensat(int dfd, const char __user *filename,
774 struct timespec __user *utimes, int flags);
775asmlinkage long sys_unshare(unsigned long unshare_flags);
776
777asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
778 int fd_out, loff_t __user *off_out,
779 size_t len, unsigned int flags);
780
781asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
782 unsigned long nr_segs, unsigned int flags);
783
784asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
785
786asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
787 unsigned int flags);
788asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
789 loff_t offset, loff_t nbytes);
790asmlinkage long sys_get_robust_list(int pid,
791 struct robust_list_head __user * __user *head_ptr,
792 size_t __user *len_ptr);
793asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
794 size_t len);
795asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
796asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
797asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
798asmlinkage long sys_timerfd_create(int clockid, int flags);
799asmlinkage long sys_timerfd_settime(int ufd, int flags,
800 const struct itimerspec __user *utmr,
801 struct itimerspec __user *otmr);
802asmlinkage long sys_timerfd_gettime(int ufd, struct itimerspec __user *otmr);
803asmlinkage long sys_eventfd(unsigned int count);
804asmlinkage long sys_eventfd2(unsigned int count, int flags);
805asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
806asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
807asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
808 fd_set __user *, struct timespec __user *,
809 void __user *);
810asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
811 struct timespec __user *, const sigset_t __user *,
812 size_t);
813asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
814asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
815 u64 mask, int fd,
816 const char __user *pathname);
817asmlinkage long sys_syncfs(int fd);
818
819asmlinkage long sys_fork(void);
820asmlinkage long sys_vfork(void);
821#ifdef CONFIG_CLONE_BACKWARDS
822asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, int,
823 int __user *);
824#else
825#ifdef CONFIG_CLONE_BACKWARDS3
826asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
827 int __user *, int);
828#else
829asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
830 int __user *, int);
831#endif
832#endif
833
834asmlinkage long sys_execve(const char __user *filename,
835 const char __user *const __user *argv,
836 const char __user *const __user *envp);
837
838asmlinkage long sys_perf_event_open(
839 struct perf_event_attr __user *attr_uptr,
840 pid_t pid, int cpu, int group_fd, unsigned long flags);
841
842asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
843 unsigned long prot, unsigned long flags,
844 unsigned long fd, unsigned long pgoff);
845asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
846asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
847 struct file_handle __user *handle,
848 int __user *mnt_id, int flag);
849asmlinkage long sys_open_by_handle_at(int mountdirfd,
850 struct file_handle __user *handle,
851 int flags);
852asmlinkage long sys_setns(int fd, int nstype);
853asmlinkage long sys_process_vm_readv(pid_t pid,
854 const struct iovec __user *lvec,
855 unsigned long liovcnt,
856 const struct iovec __user *rvec,
857 unsigned long riovcnt,
858 unsigned long flags);
859asmlinkage long sys_process_vm_writev(pid_t pid,
860 const struct iovec __user *lvec,
861 unsigned long liovcnt,
862 const struct iovec __user *rvec,
863 unsigned long riovcnt,
864 unsigned long flags);
865
866asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
867 unsigned long idx1, unsigned long idx2);
868asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
869#endif
1/*
2 * syscalls.h - Linux syscall interfaces (non-arch-specific)
3 *
4 * Copyright (c) 2004 Randy Dunlap
5 * Copyright (c) 2004 Open Source Development Labs
6 *
7 * This file is released under the GPLv2.
8 * See the file COPYING for more details.
9 */
10
11#ifndef _LINUX_SYSCALLS_H
12#define _LINUX_SYSCALLS_H
13
14struct epoll_event;
15struct iattr;
16struct inode;
17struct iocb;
18struct io_event;
19struct iovec;
20struct itimerspec;
21struct itimerval;
22struct kexec_segment;
23struct linux_dirent;
24struct linux_dirent64;
25struct list_head;
26struct mmap_arg_struct;
27struct msgbuf;
28struct user_msghdr;
29struct mmsghdr;
30struct msqid_ds;
31struct new_utsname;
32struct nfsctl_arg;
33struct __old_kernel_stat;
34struct oldold_utsname;
35struct old_utsname;
36struct pollfd;
37struct rlimit;
38struct rlimit64;
39struct rusage;
40struct sched_param;
41struct sched_attr;
42struct sel_arg_struct;
43struct semaphore;
44struct sembuf;
45struct shmid_ds;
46struct sockaddr;
47struct stat;
48struct stat64;
49struct statfs;
50struct statfs64;
51struct statx;
52struct __sysctl_args;
53struct sysinfo;
54struct timespec;
55struct timeval;
56struct timex;
57struct timezone;
58struct tms;
59struct utimbuf;
60struct mq_attr;
61struct compat_stat;
62struct compat_timeval;
63struct robust_list_head;
64struct getcpu_cache;
65struct old_linux_dirent;
66struct perf_event_attr;
67struct file_handle;
68struct sigaltstack;
69union bpf_attr;
70
71#include <linux/types.h>
72#include <linux/aio_abi.h>
73#include <linux/capability.h>
74#include <linux/signal.h>
75#include <linux/list.h>
76#include <linux/bug.h>
77#include <linux/sem.h>
78#include <asm/siginfo.h>
79#include <linux/unistd.h>
80#include <linux/quota.h>
81#include <linux/key.h>
82#include <trace/syscall.h>
83
84#ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
85/*
86 * It may be useful for an architecture to override the definitions of the
87 * SYSCALL_DEFINE0() and __SYSCALL_DEFINEx() macros, in particular to use a
88 * different calling convention for syscalls. To allow for that, the prototypes
89 * for the sys_*() functions below will *not* be included if
90 * CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
91 */
92#include <asm/syscall_wrapper.h>
93#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
94
95/*
96 * __MAP - apply a macro to syscall arguments
97 * __MAP(n, m, t1, a1, t2, a2, ..., tn, an) will expand to
98 * m(t1, a1), m(t2, a2), ..., m(tn, an)
99 * The first argument must be equal to the amount of type/name
100 * pairs given. Note that this list of pairs (i.e. the arguments
101 * of __MAP starting at the third one) is in the same format as
102 * for SYSCALL_DEFINE<n>/COMPAT_SYSCALL_DEFINE<n>
103 */
104#define __MAP0(m,...)
105#define __MAP1(m,t,a,...) m(t,a)
106#define __MAP2(m,t,a,...) m(t,a), __MAP1(m,__VA_ARGS__)
107#define __MAP3(m,t,a,...) m(t,a), __MAP2(m,__VA_ARGS__)
108#define __MAP4(m,t,a,...) m(t,a), __MAP3(m,__VA_ARGS__)
109#define __MAP5(m,t,a,...) m(t,a), __MAP4(m,__VA_ARGS__)
110#define __MAP6(m,t,a,...) m(t,a), __MAP5(m,__VA_ARGS__)
111#define __MAP(n,...) __MAP##n(__VA_ARGS__)
112
113#define __SC_DECL(t, a) t a
114#define __TYPE_AS(t, v) __same_type((__force t)0, v)
115#define __TYPE_IS_L(t) (__TYPE_AS(t, 0L))
116#define __TYPE_IS_UL(t) (__TYPE_AS(t, 0UL))
117#define __TYPE_IS_LL(t) (__TYPE_AS(t, 0LL) || __TYPE_AS(t, 0ULL))
118#define __SC_LONG(t, a) __typeof(__builtin_choose_expr(__TYPE_IS_LL(t), 0LL, 0L)) a
119#define __SC_CAST(t, a) (__force t) a
120#define __SC_ARGS(t, a) a
121#define __SC_TEST(t, a) (void)BUILD_BUG_ON_ZERO(!__TYPE_IS_LL(t) && sizeof(t) > sizeof(long))
122
123#ifdef CONFIG_FTRACE_SYSCALLS
124#define __SC_STR_ADECL(t, a) #a
125#define __SC_STR_TDECL(t, a) #t
126
127extern struct trace_event_class event_class_syscall_enter;
128extern struct trace_event_class event_class_syscall_exit;
129extern struct trace_event_functions enter_syscall_print_funcs;
130extern struct trace_event_functions exit_syscall_print_funcs;
131
132#define SYSCALL_TRACE_ENTER_EVENT(sname) \
133 static struct syscall_metadata __syscall_meta_##sname; \
134 static struct trace_event_call __used \
135 event_enter_##sname = { \
136 .class = &event_class_syscall_enter, \
137 { \
138 .name = "sys_enter"#sname, \
139 }, \
140 .event.funcs = &enter_syscall_print_funcs, \
141 .data = (void *)&__syscall_meta_##sname,\
142 .flags = TRACE_EVENT_FL_CAP_ANY, \
143 }; \
144 static struct trace_event_call __used \
145 __attribute__((section("_ftrace_events"))) \
146 *__event_enter_##sname = &event_enter_##sname;
147
148#define SYSCALL_TRACE_EXIT_EVENT(sname) \
149 static struct syscall_metadata __syscall_meta_##sname; \
150 static struct trace_event_call __used \
151 event_exit_##sname = { \
152 .class = &event_class_syscall_exit, \
153 { \
154 .name = "sys_exit"#sname, \
155 }, \
156 .event.funcs = &exit_syscall_print_funcs, \
157 .data = (void *)&__syscall_meta_##sname,\
158 .flags = TRACE_EVENT_FL_CAP_ANY, \
159 }; \
160 static struct trace_event_call __used \
161 __attribute__((section("_ftrace_events"))) \
162 *__event_exit_##sname = &event_exit_##sname;
163
164#define SYSCALL_METADATA(sname, nb, ...) \
165 static const char *types_##sname[] = { \
166 __MAP(nb,__SC_STR_TDECL,__VA_ARGS__) \
167 }; \
168 static const char *args_##sname[] = { \
169 __MAP(nb,__SC_STR_ADECL,__VA_ARGS__) \
170 }; \
171 SYSCALL_TRACE_ENTER_EVENT(sname); \
172 SYSCALL_TRACE_EXIT_EVENT(sname); \
173 static struct syscall_metadata __used \
174 __syscall_meta_##sname = { \
175 .name = "sys"#sname, \
176 .syscall_nr = -1, /* Filled in at boot */ \
177 .nb_args = nb, \
178 .types = nb ? types_##sname : NULL, \
179 .args = nb ? args_##sname : NULL, \
180 .enter_event = &event_enter_##sname, \
181 .exit_event = &event_exit_##sname, \
182 .enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
183 }; \
184 static struct syscall_metadata __used \
185 __attribute__((section("__syscalls_metadata"))) \
186 *__p_syscall_meta_##sname = &__syscall_meta_##sname;
187
188static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
189{
190 return tp_event->class == &event_class_syscall_enter ||
191 tp_event->class == &event_class_syscall_exit;
192}
193
194#else
195#define SYSCALL_METADATA(sname, nb, ...)
196
197static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
198{
199 return 0;
200}
201#endif
202
203#ifndef SYSCALL_DEFINE0
204#define SYSCALL_DEFINE0(sname) \
205 SYSCALL_METADATA(_##sname, 0); \
206 asmlinkage long sys_##sname(void); \
207 ALLOW_ERROR_INJECTION(sys_##sname, ERRNO); \
208 asmlinkage long sys_##sname(void)
209#endif /* SYSCALL_DEFINE0 */
210
211#define SYSCALL_DEFINE1(name, ...) SYSCALL_DEFINEx(1, _##name, __VA_ARGS__)
212#define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
213#define SYSCALL_DEFINE3(name, ...) SYSCALL_DEFINEx(3, _##name, __VA_ARGS__)
214#define SYSCALL_DEFINE4(name, ...) SYSCALL_DEFINEx(4, _##name, __VA_ARGS__)
215#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
216#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
217
218#define SYSCALL_DEFINE_MAXARGS 6
219
220#define SYSCALL_DEFINEx(x, sname, ...) \
221 SYSCALL_METADATA(sname, x, __VA_ARGS__) \
222 __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
223
224#define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
225
226/*
227 * The asmlinkage stub is aliased to a function named __se_sys_*() which
228 * sign-extends 32-bit ints to longs whenever needed. The actual work is
229 * done within __do_sys_*().
230 */
231#ifndef __SYSCALL_DEFINEx
232#define __SYSCALL_DEFINEx(x, name, ...) \
233 asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \
234 __attribute__((alias(__stringify(__se_sys##name)))); \
235 ALLOW_ERROR_INJECTION(sys##name, ERRNO); \
236 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
237 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
238 asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
239 { \
240 long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
241 __MAP(x,__SC_TEST,__VA_ARGS__); \
242 __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
243 return ret; \
244 } \
245 static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
246#endif /* __SYSCALL_DEFINEx */
247
248/*
249 * Called before coming back to user-mode. Returning to user-mode with an
250 * address limit different than USER_DS can allow to overwrite kernel memory.
251 */
252static inline void addr_limit_user_check(void)
253{
254#ifdef TIF_FSCHECK
255 if (!test_thread_flag(TIF_FSCHECK))
256 return;
257#endif
258
259 if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS),
260 "Invalid address limit on user-mode return"))
261 force_sig(SIGKILL, current);
262
263#ifdef TIF_FSCHECK
264 clear_thread_flag(TIF_FSCHECK);
265#endif
266}
267
268/*
269 * These syscall function prototypes are kept in the same order as
270 * include/uapi/asm-generic/unistd.h. Architecture specific entries go below,
271 * followed by deprecated or obsolete system calls.
272 *
273 * Please note that these prototypes here are only provided for information
274 * purposes, for static analysis, and for linking from the syscall table.
275 * These functions should not be called elsewhere from kernel code.
276 *
277 * As the syscall calling convention may be different from the default
278 * for architectures overriding the syscall calling convention, do not
279 * include the prototypes if CONFIG_ARCH_HAS_SYSCALL_WRAPPER is enabled.
280 */
281#ifndef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
282asmlinkage long sys_io_setup(unsigned nr_reqs, aio_context_t __user *ctx);
283asmlinkage long sys_io_destroy(aio_context_t ctx);
284asmlinkage long sys_io_submit(aio_context_t, long,
285 struct iocb __user * __user *);
286asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
287 struct io_event __user *result);
288asmlinkage long sys_io_getevents(aio_context_t ctx_id,
289 long min_nr,
290 long nr,
291 struct io_event __user *events,
292 struct timespec __user *timeout);
293
294/* fs/xattr.c */
295asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
296 const void __user *value, size_t size, int flags);
297asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
298 const void __user *value, size_t size, int flags);
299asmlinkage long sys_fsetxattr(int fd, const char __user *name,
300 const void __user *value, size_t size, int flags);
301asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
302 void __user *value, size_t size);
303asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
304 void __user *value, size_t size);
305asmlinkage long sys_fgetxattr(int fd, const char __user *name,
306 void __user *value, size_t size);
307asmlinkage long sys_listxattr(const char __user *path, char __user *list,
308 size_t size);
309asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
310 size_t size);
311asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
312asmlinkage long sys_removexattr(const char __user *path,
313 const char __user *name);
314asmlinkage long sys_lremovexattr(const char __user *path,
315 const char __user *name);
316asmlinkage long sys_fremovexattr(int fd, const char __user *name);
317
318/* fs/dcache.c */
319asmlinkage long sys_getcwd(char __user *buf, unsigned long size);
320
321/* fs/cookies.c */
322asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len);
323
324/* fs/eventfd.c */
325asmlinkage long sys_eventfd2(unsigned int count, int flags);
326
327/* fs/eventpoll.c */
328asmlinkage long sys_epoll_create1(int flags);
329asmlinkage long sys_epoll_ctl(int epfd, int op, int fd,
330 struct epoll_event __user *event);
331asmlinkage long sys_epoll_pwait(int epfd, struct epoll_event __user *events,
332 int maxevents, int timeout,
333 const sigset_t __user *sigmask,
334 size_t sigsetsize);
335
336/* fs/fcntl.c */
337asmlinkage long sys_dup(unsigned int fildes);
338asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags);
339asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
340#if BITS_PER_LONG == 32
341asmlinkage long sys_fcntl64(unsigned int fd,
342 unsigned int cmd, unsigned long arg);
343#endif
344
345/* fs/inotify_user.c */
346asmlinkage long sys_inotify_init1(int flags);
347asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
348 u32 mask);
349asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd);
350
351/* fs/ioctl.c */
352asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd,
353 unsigned long arg);
354
355/* fs/ioprio.c */
356asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
357asmlinkage long sys_ioprio_get(int which, int who);
358
359/* fs/locks.c */
360asmlinkage long sys_flock(unsigned int fd, unsigned int cmd);
361
362/* fs/namei.c */
363asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode,
364 unsigned dev);
365asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode);
366asmlinkage long sys_unlinkat(int dfd, const char __user * pathname, int flag);
367asmlinkage long sys_symlinkat(const char __user * oldname,
368 int newdfd, const char __user * newname);
369asmlinkage long sys_linkat(int olddfd, const char __user *oldname,
370 int newdfd, const char __user *newname, int flags);
371asmlinkage long sys_renameat(int olddfd, const char __user * oldname,
372 int newdfd, const char __user * newname);
373
374/* fs/namespace.c */
375asmlinkage long sys_umount(char __user *name, int flags);
376asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name,
377 char __user *type, unsigned long flags,
378 void __user *data);
379asmlinkage long sys_pivot_root(const char __user *new_root,
380 const char __user *put_old);
381
382/* fs/nfsctl.c */
383
384/* fs/open.c */
385asmlinkage long sys_statfs(const char __user * path,
386 struct statfs __user *buf);
387asmlinkage long sys_statfs64(const char __user *path, size_t sz,
388 struct statfs64 __user *buf);
389asmlinkage long sys_fstatfs(unsigned int fd, struct statfs __user *buf);
390asmlinkage long sys_fstatfs64(unsigned int fd, size_t sz,
391 struct statfs64 __user *buf);
392asmlinkage long sys_truncate(const char __user *path, long length);
393asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
394#if BITS_PER_LONG == 32
395asmlinkage long sys_truncate64(const char __user *path, loff_t length);
396asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
397#endif
398asmlinkage long sys_fallocate(int fd, int mode, loff_t offset, loff_t len);
399asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode);
400asmlinkage long sys_chdir(const char __user *filename);
401asmlinkage long sys_fchdir(unsigned int fd);
402asmlinkage long sys_chroot(const char __user *filename);
403asmlinkage long sys_fchmod(unsigned int fd, umode_t mode);
404asmlinkage long sys_fchmodat(int dfd, const char __user * filename,
405 umode_t mode);
406asmlinkage long sys_fchownat(int dfd, const char __user *filename, uid_t user,
407 gid_t group, int flag);
408asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group);
409asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
410 umode_t mode);
411asmlinkage long sys_close(unsigned int fd);
412asmlinkage long sys_vhangup(void);
413
414/* fs/pipe.c */
415asmlinkage long sys_pipe2(int __user *fildes, int flags);
416
417/* fs/quota.c */
418asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special,
419 qid_t id, void __user *addr);
420
421/* fs/readdir.c */
422asmlinkage long sys_getdents64(unsigned int fd,
423 struct linux_dirent64 __user *dirent,
424 unsigned int count);
425
426/* fs/read_write.c */
427asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high,
428 unsigned long offset_low, loff_t __user *result,
429 unsigned int whence);
430asmlinkage long sys_lseek(unsigned int fd, off_t offset,
431 unsigned int whence);
432asmlinkage long sys_read(unsigned int fd, char __user *buf, size_t count);
433asmlinkage long sys_write(unsigned int fd, const char __user *buf,
434 size_t count);
435asmlinkage long sys_readv(unsigned long fd,
436 const struct iovec __user *vec,
437 unsigned long vlen);
438asmlinkage long sys_writev(unsigned long fd,
439 const struct iovec __user *vec,
440 unsigned long vlen);
441asmlinkage long sys_pread64(unsigned int fd, char __user *buf,
442 size_t count, loff_t pos);
443asmlinkage long sys_pwrite64(unsigned int fd, const char __user *buf,
444 size_t count, loff_t pos);
445asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec,
446 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
447asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec,
448 unsigned long vlen, unsigned long pos_l, unsigned long pos_h);
449
450/* fs/sendfile.c */
451asmlinkage long sys_sendfile64(int out_fd, int in_fd,
452 loff_t __user *offset, size_t count);
453
454/* fs/select.c */
455asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *,
456 fd_set __user *, struct timespec __user *,
457 void __user *);
458asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int,
459 struct timespec __user *, const sigset_t __user *,
460 size_t);
461
462/* fs/signalfd.c */
463asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags);
464
465/* fs/splice.c */
466asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
467 unsigned long nr_segs, unsigned int flags);
468asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
469 int fd_out, loff_t __user *off_out,
470 size_t len, unsigned int flags);
471asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
472
473/* fs/stat.c */
474asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
475 int bufsiz);
476asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
477 struct stat __user *statbuf, int flag);
478asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
479#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
480asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
481asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
482 struct stat64 __user *statbuf, int flag);
483#endif
484
485/* fs/sync.c */
486asmlinkage long sys_sync(void);
487asmlinkage long sys_fsync(unsigned int fd);
488asmlinkage long sys_fdatasync(unsigned int fd);
489asmlinkage long sys_sync_file_range2(int fd, unsigned int flags,
490 loff_t offset, loff_t nbytes);
491asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
492 unsigned int flags);
493
494/* fs/timerfd.c */
495asmlinkage long sys_timerfd_create(int clockid, int flags);
496asmlinkage long sys_timerfd_settime(int ufd, int flags,
497 const struct itimerspec __user *utmr,
498 struct itimerspec __user *otmr);
499asmlinkage long sys_timerfd_gettime(int ufd, struct itimerspec __user *otmr);
500
501/* fs/utimes.c */
502asmlinkage long sys_utimensat(int dfd, const char __user *filename,
503 struct timespec __user *utimes, int flags);
504
505/* kernel/acct.c */
506asmlinkage long sys_acct(const char __user *name);
507
508/* kernel/capability.c */
509asmlinkage long sys_capget(cap_user_header_t header,
510 cap_user_data_t dataptr);
511asmlinkage long sys_capset(cap_user_header_t header,
512 const cap_user_data_t data);
513
514/* kernel/exec_domain.c */
515asmlinkage long sys_personality(unsigned int personality);
516
517/* kernel/exit.c */
518asmlinkage long sys_exit(int error_code);
519asmlinkage long sys_exit_group(int error_code);
520asmlinkage long sys_waitid(int which, pid_t pid,
521 struct siginfo __user *infop,
522 int options, struct rusage __user *ru);
523
524/* kernel/fork.c */
525asmlinkage long sys_set_tid_address(int __user *tidptr);
526asmlinkage long sys_unshare(unsigned long unshare_flags);
527
528/* kernel/futex.c */
529asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val,
530 struct timespec __user *utime, u32 __user *uaddr2,
531 u32 val3);
532asmlinkage long sys_get_robust_list(int pid,
533 struct robust_list_head __user * __user *head_ptr,
534 size_t __user *len_ptr);
535asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
536 size_t len);
537
538/* kernel/hrtimer.c */
539asmlinkage long sys_nanosleep(struct timespec __user *rqtp, struct timespec __user *rmtp);
540
541/* kernel/itimer.c */
542asmlinkage long sys_getitimer(int which, struct itimerval __user *value);
543asmlinkage long sys_setitimer(int which,
544 struct itimerval __user *value,
545 struct itimerval __user *ovalue);
546
547/* kernel/kexec.c */
548asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
549 struct kexec_segment __user *segments,
550 unsigned long flags);
551
552/* kernel/module.c */
553asmlinkage long sys_init_module(void __user *umod, unsigned long len,
554 const char __user *uargs);
555asmlinkage long sys_delete_module(const char __user *name_user,
556 unsigned int flags);
557
558/* kernel/posix-timers.c */
559asmlinkage long sys_timer_create(clockid_t which_clock,
560 struct sigevent __user *timer_event_spec,
561 timer_t __user * created_timer_id);
562asmlinkage long sys_timer_gettime(timer_t timer_id,
563 struct itimerspec __user *setting);
564asmlinkage long sys_timer_getoverrun(timer_t timer_id);
565asmlinkage long sys_timer_settime(timer_t timer_id, int flags,
566 const struct itimerspec __user *new_setting,
567 struct itimerspec __user *old_setting);
568asmlinkage long sys_timer_delete(timer_t timer_id);
569asmlinkage long sys_clock_settime(clockid_t which_clock,
570 const struct timespec __user *tp);
571asmlinkage long sys_clock_gettime(clockid_t which_clock,
572 struct timespec __user *tp);
573asmlinkage long sys_clock_getres(clockid_t which_clock,
574 struct timespec __user *tp);
575asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
576 const struct timespec __user *rqtp,
577 struct timespec __user *rmtp);
578
579/* kernel/printk.c */
580asmlinkage long sys_syslog(int type, char __user *buf, int len);
581
582/* kernel/ptrace.c */
583asmlinkage long sys_ptrace(long request, long pid, unsigned long addr,
584 unsigned long data);
585/* kernel/sched/core.c */
586
587asmlinkage long sys_sched_setparam(pid_t pid,
588 struct sched_param __user *param);
589asmlinkage long sys_sched_setscheduler(pid_t pid, int policy,
590 struct sched_param __user *param);
591asmlinkage long sys_sched_getscheduler(pid_t pid);
592asmlinkage long sys_sched_getparam(pid_t pid,
593 struct sched_param __user *param);
594asmlinkage long sys_sched_setaffinity(pid_t pid, unsigned int len,
595 unsigned long __user *user_mask_ptr);
596asmlinkage long sys_sched_getaffinity(pid_t pid, unsigned int len,
597 unsigned long __user *user_mask_ptr);
598asmlinkage long sys_sched_yield(void);
599asmlinkage long sys_sched_get_priority_max(int policy);
600asmlinkage long sys_sched_get_priority_min(int policy);
601asmlinkage long sys_sched_rr_get_interval(pid_t pid,
602 struct timespec __user *interval);
603
604/* kernel/signal.c */
605asmlinkage long sys_restart_syscall(void);
606asmlinkage long sys_kill(pid_t pid, int sig);
607asmlinkage long sys_tkill(pid_t pid, int sig);
608asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig);
609asmlinkage long sys_sigaltstack(const struct sigaltstack __user *uss,
610 struct sigaltstack __user *uoss);
611asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
612#ifndef CONFIG_ODD_RT_SIGACTION
613asmlinkage long sys_rt_sigaction(int,
614 const struct sigaction __user *,
615 struct sigaction __user *,
616 size_t);
617#endif
618asmlinkage long sys_rt_sigprocmask(int how, sigset_t __user *set,
619 sigset_t __user *oset, size_t sigsetsize);
620asmlinkage long sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize);
621asmlinkage long sys_rt_sigtimedwait(const sigset_t __user *uthese,
622 siginfo_t __user *uinfo,
623 const struct timespec __user *uts,
624 size_t sigsetsize);
625asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo);
626
627/* kernel/sys.c */
628asmlinkage long sys_setpriority(int which, int who, int niceval);
629asmlinkage long sys_getpriority(int which, int who);
630asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd,
631 void __user *arg);
632asmlinkage long sys_setregid(gid_t rgid, gid_t egid);
633asmlinkage long sys_setgid(gid_t gid);
634asmlinkage long sys_setreuid(uid_t ruid, uid_t euid);
635asmlinkage long sys_setuid(uid_t uid);
636asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid);
637asmlinkage long sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid);
638asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
639asmlinkage long sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid);
640asmlinkage long sys_setfsuid(uid_t uid);
641asmlinkage long sys_setfsgid(gid_t gid);
642asmlinkage long sys_times(struct tms __user *tbuf);
643asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
644asmlinkage long sys_getpgid(pid_t pid);
645asmlinkage long sys_getsid(pid_t pid);
646asmlinkage long sys_setsid(void);
647asmlinkage long sys_getgroups(int gidsetsize, gid_t __user *grouplist);
648asmlinkage long sys_setgroups(int gidsetsize, gid_t __user *grouplist);
649asmlinkage long sys_newuname(struct new_utsname __user *name);
650asmlinkage long sys_sethostname(char __user *name, int len);
651asmlinkage long sys_setdomainname(char __user *name, int len);
652asmlinkage long sys_getrlimit(unsigned int resource,
653 struct rlimit __user *rlim);
654asmlinkage long sys_setrlimit(unsigned int resource,
655 struct rlimit __user *rlim);
656asmlinkage long sys_getrusage(int who, struct rusage __user *ru);
657asmlinkage long sys_umask(int mask);
658asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
659 unsigned long arg4, unsigned long arg5);
660asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache);
661
662/* kernel/time.c */
663asmlinkage long sys_gettimeofday(struct timeval __user *tv,
664 struct timezone __user *tz);
665asmlinkage long sys_settimeofday(struct timeval __user *tv,
666 struct timezone __user *tz);
667asmlinkage long sys_adjtimex(struct timex __user *txc_p);
668
669/* kernel/timer.c */
670asmlinkage long sys_getpid(void);
671asmlinkage long sys_getppid(void);
672asmlinkage long sys_getuid(void);
673asmlinkage long sys_geteuid(void);
674asmlinkage long sys_getgid(void);
675asmlinkage long sys_getegid(void);
676asmlinkage long sys_gettid(void);
677asmlinkage long sys_sysinfo(struct sysinfo __user *info);
678
679/* ipc/mqueue.c */
680asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr);
681asmlinkage long sys_mq_unlink(const char __user *name);
682asmlinkage long sys_mq_timedsend(mqd_t mqdes, const char __user *msg_ptr, size_t msg_len, unsigned int msg_prio, const struct timespec __user *abs_timeout);
683asmlinkage long sys_mq_timedreceive(mqd_t mqdes, char __user *msg_ptr, size_t msg_len, unsigned int __user *msg_prio, const struct timespec __user *abs_timeout);
684asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification);
685asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat);
686
687/* ipc/msg.c */
688asmlinkage long sys_msgget(key_t key, int msgflg);
689asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf);
690asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp,
691 size_t msgsz, long msgtyp, int msgflg);
692asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp,
693 size_t msgsz, int msgflg);
694
695/* ipc/sem.c */
696asmlinkage long sys_semget(key_t key, int nsems, int semflg);
697asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg);
698asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops,
699 unsigned nsops,
700 const struct timespec __user *timeout);
701asmlinkage long sys_semop(int semid, struct sembuf __user *sops,
702 unsigned nsops);
703
704/* ipc/shm.c */
705asmlinkage long sys_shmget(key_t key, size_t size, int flag);
706asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf);
707asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg);
708asmlinkage long sys_shmdt(char __user *shmaddr);
709
710/* net/socket.c */
711asmlinkage long sys_socket(int, int, int);
712asmlinkage long sys_socketpair(int, int, int, int __user *);
713asmlinkage long sys_bind(int, struct sockaddr __user *, int);
714asmlinkage long sys_listen(int, int);
715asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
716asmlinkage long sys_connect(int, struct sockaddr __user *, int);
717asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
718asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
719asmlinkage long sys_sendto(int, void __user *, size_t, unsigned,
720 struct sockaddr __user *, int);
721asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned,
722 struct sockaddr __user *, int __user *);
723asmlinkage long sys_setsockopt(int fd, int level, int optname,
724 char __user *optval, int optlen);
725asmlinkage long sys_getsockopt(int fd, int level, int optname,
726 char __user *optval, int __user *optlen);
727asmlinkage long sys_shutdown(int, int);
728asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
729asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags);
730
731/* mm/filemap.c */
732asmlinkage long sys_readahead(int fd, loff_t offset, size_t count);
733
734/* mm/nommu.c, also with MMU */
735asmlinkage long sys_brk(unsigned long brk);
736asmlinkage long sys_munmap(unsigned long addr, size_t len);
737asmlinkage long sys_mremap(unsigned long addr,
738 unsigned long old_len, unsigned long new_len,
739 unsigned long flags, unsigned long new_addr);
740
741/* security/keys/keyctl.c */
742asmlinkage long sys_add_key(const char __user *_type,
743 const char __user *_description,
744 const void __user *_payload,
745 size_t plen,
746 key_serial_t destringid);
747asmlinkage long sys_request_key(const char __user *_type,
748 const char __user *_description,
749 const char __user *_callout_info,
750 key_serial_t destringid);
751asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
752 unsigned long arg4, unsigned long arg5);
753
754/* arch/example/kernel/sys_example.c */
755#ifdef CONFIG_CLONE_BACKWARDS
756asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long,
757 int __user *);
758#else
759#ifdef CONFIG_CLONE_BACKWARDS3
760asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
761 int __user *, unsigned long);
762#else
763asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
764 int __user *, unsigned long);
765#endif
766#endif
767asmlinkage long sys_execve(const char __user *filename,
768 const char __user *const __user *argv,
769 const char __user *const __user *envp);
770
771/* mm/fadvise.c */
772asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
773
774/* mm/, CONFIG_MMU only */
775asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags);
776asmlinkage long sys_swapoff(const char __user *specialfile);
777asmlinkage long sys_mprotect(unsigned long start, size_t len,
778 unsigned long prot);
779asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
780asmlinkage long sys_mlock(unsigned long start, size_t len);
781asmlinkage long sys_munlock(unsigned long start, size_t len);
782asmlinkage long sys_mlockall(int flags);
783asmlinkage long sys_munlockall(void);
784asmlinkage long sys_mincore(unsigned long start, size_t len,
785 unsigned char __user * vec);
786asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
787asmlinkage long sys_remap_file_pages(unsigned long start, unsigned long size,
788 unsigned long prot, unsigned long pgoff,
789 unsigned long flags);
790asmlinkage long sys_mbind(unsigned long start, unsigned long len,
791 unsigned long mode,
792 const unsigned long __user *nmask,
793 unsigned long maxnode,
794 unsigned flags);
795asmlinkage long sys_get_mempolicy(int __user *policy,
796 unsigned long __user *nmask,
797 unsigned long maxnode,
798 unsigned long addr, unsigned long flags);
799asmlinkage long sys_set_mempolicy(int mode, const unsigned long __user *nmask,
800 unsigned long maxnode);
801asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
802 const unsigned long __user *from,
803 const unsigned long __user *to);
804asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages,
805 const void __user * __user *pages,
806 const int __user *nodes,
807 int __user *status,
808 int flags);
809
810asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig,
811 siginfo_t __user *uinfo);
812asmlinkage long sys_perf_event_open(
813 struct perf_event_attr __user *attr_uptr,
814 pid_t pid, int cpu, int group_fd, unsigned long flags);
815asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
816asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg,
817 unsigned int vlen, unsigned flags,
818 struct timespec __user *timeout);
819
820asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr,
821 int options, struct rusage __user *ru);
822asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource,
823 const struct rlimit64 __user *new_rlim,
824 struct rlimit64 __user *old_rlim);
825asmlinkage long sys_fanotify_init(unsigned int flags, unsigned int event_f_flags);
826asmlinkage long sys_fanotify_mark(int fanotify_fd, unsigned int flags,
827 u64 mask, int fd,
828 const char __user *pathname);
829asmlinkage long sys_name_to_handle_at(int dfd, const char __user *name,
830 struct file_handle __user *handle,
831 int __user *mnt_id, int flag);
832asmlinkage long sys_open_by_handle_at(int mountdirfd,
833 struct file_handle __user *handle,
834 int flags);
835asmlinkage long sys_clock_adjtime(clockid_t which_clock,
836 struct timex __user *tx);
837asmlinkage long sys_syncfs(int fd);
838asmlinkage long sys_setns(int fd, int nstype);
839asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg,
840 unsigned int vlen, unsigned flags);
841asmlinkage long sys_process_vm_readv(pid_t pid,
842 const struct iovec __user *lvec,
843 unsigned long liovcnt,
844 const struct iovec __user *rvec,
845 unsigned long riovcnt,
846 unsigned long flags);
847asmlinkage long sys_process_vm_writev(pid_t pid,
848 const struct iovec __user *lvec,
849 unsigned long liovcnt,
850 const struct iovec __user *rvec,
851 unsigned long riovcnt,
852 unsigned long flags);
853asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
854 unsigned long idx1, unsigned long idx2);
855asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
856asmlinkage long sys_sched_setattr(pid_t pid,
857 struct sched_attr __user *attr,
858 unsigned int flags);
859asmlinkage long sys_sched_getattr(pid_t pid,
860 struct sched_attr __user *attr,
861 unsigned int size,
862 unsigned int flags);
863asmlinkage long sys_renameat2(int olddfd, const char __user *oldname,
864 int newdfd, const char __user *newname,
865 unsigned int flags);
866asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
867 const char __user *uargs);
868asmlinkage long sys_getrandom(char __user *buf, size_t count,
869 unsigned int flags);
870asmlinkage long sys_memfd_create(const char __user *uname_ptr, unsigned int flags);
871asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size);
872asmlinkage long sys_execveat(int dfd, const char __user *filename,
873 const char __user *const __user *argv,
874 const char __user *const __user *envp, int flags);
875asmlinkage long sys_userfaultfd(int flags);
876asmlinkage long sys_membarrier(int cmd, int flags);
877asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
878asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
879 int fd_out, loff_t __user *off_out,
880 size_t len, unsigned int flags);
881asmlinkage long sys_preadv2(unsigned long fd, const struct iovec __user *vec,
882 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
883 rwf_t flags);
884asmlinkage long sys_pwritev2(unsigned long fd, const struct iovec __user *vec,
885 unsigned long vlen, unsigned long pos_l, unsigned long pos_h,
886 rwf_t flags);
887asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
888 unsigned long prot, int pkey);
889asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
890asmlinkage long sys_pkey_free(int pkey);
891asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
892 unsigned mask, struct statx __user *buffer);
893
894
895/*
896 * Architecture-specific system calls
897 */
898
899/* arch/x86/kernel/ioport.c */
900asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
901
902/* pciconfig: alpha, arm, arm64, ia64, sparc */
903asmlinkage long sys_pciconfig_read(unsigned long bus, unsigned long dfn,
904 unsigned long off, unsigned long len,
905 void __user *buf);
906asmlinkage long sys_pciconfig_write(unsigned long bus, unsigned long dfn,
907 unsigned long off, unsigned long len,
908 void __user *buf);
909asmlinkage long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn);
910
911/* powerpc */
912asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
913 __u32 __user *ustatus);
914asmlinkage long sys_spu_create(const char __user *name,
915 unsigned int flags, umode_t mode, int fd);
916
917
918/*
919 * Deprecated system calls which are still defined in
920 * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
921 */
922
923/* __ARCH_WANT_SYSCALL_NO_AT */
924asmlinkage long sys_open(const char __user *filename,
925 int flags, umode_t mode);
926asmlinkage long sys_link(const char __user *oldname,
927 const char __user *newname);
928asmlinkage long sys_unlink(const char __user *pathname);
929asmlinkage long sys_mknod(const char __user *filename, umode_t mode,
930 unsigned dev);
931asmlinkage long sys_chmod(const char __user *filename, umode_t mode);
932asmlinkage long sys_chown(const char __user *filename,
933 uid_t user, gid_t group);
934asmlinkage long sys_mkdir(const char __user *pathname, umode_t mode);
935asmlinkage long sys_rmdir(const char __user *pathname);
936asmlinkage long sys_lchown(const char __user *filename,
937 uid_t user, gid_t group);
938asmlinkage long sys_access(const char __user *filename, int mode);
939asmlinkage long sys_rename(const char __user *oldname,
940 const char __user *newname);
941asmlinkage long sys_symlink(const char __user *old, const char __user *new);
942asmlinkage long sys_utimes(char __user *filename,
943 struct timeval __user *utimes);
944#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
945asmlinkage long sys_stat64(const char __user *filename,
946 struct stat64 __user *statbuf);
947asmlinkage long sys_lstat64(const char __user *filename,
948 struct stat64 __user *statbuf);
949#endif
950
951/* __ARCH_WANT_SYSCALL_NO_FLAGS */
952asmlinkage long sys_pipe(int __user *fildes);
953asmlinkage long sys_dup2(unsigned int oldfd, unsigned int newfd);
954asmlinkage long sys_epoll_create(int size);
955asmlinkage long sys_inotify_init(void);
956asmlinkage long sys_eventfd(unsigned int count);
957asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask);
958
959/* __ARCH_WANT_SYSCALL_OFF_T */
960asmlinkage long sys_sendfile(int out_fd, int in_fd,
961 off_t __user *offset, size_t count);
962asmlinkage long sys_newstat(const char __user *filename,
963 struct stat __user *statbuf);
964asmlinkage long sys_newlstat(const char __user *filename,
965 struct stat __user *statbuf);
966asmlinkage long sys_fadvise64(int fd, loff_t offset, size_t len, int advice);
967
968/* __ARCH_WANT_SYSCALL_DEPRECATED */
969asmlinkage long sys_alarm(unsigned int seconds);
970asmlinkage long sys_getpgrp(void);
971asmlinkage long sys_pause(void);
972asmlinkage long sys_time(time_t __user *tloc);
973asmlinkage long sys_utime(char __user *filename,
974 struct utimbuf __user *times);
975asmlinkage long sys_creat(const char __user *pathname, umode_t mode);
976asmlinkage long sys_getdents(unsigned int fd,
977 struct linux_dirent __user *dirent,
978 unsigned int count);
979asmlinkage long sys_futimesat(int dfd, const char __user *filename,
980 struct timeval __user *utimes);
981asmlinkage long sys_select(int n, fd_set __user *inp, fd_set __user *outp,
982 fd_set __user *exp, struct timeval __user *tvp);
983asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
984 int timeout);
985asmlinkage long sys_epoll_wait(int epfd, struct epoll_event __user *events,
986 int maxevents, int timeout);
987asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
988asmlinkage long sys_vfork(void);
989asmlinkage long sys_recv(int, void __user *, size_t, unsigned);
990asmlinkage long sys_send(int, void __user *, size_t, unsigned);
991asmlinkage long sys_bdflush(int func, long data);
992asmlinkage long sys_oldumount(char __user *name);
993asmlinkage long sys_uselib(const char __user *library);
994asmlinkage long sys_sysctl(struct __sysctl_args __user *args);
995asmlinkage long sys_sysfs(int option,
996 unsigned long arg1, unsigned long arg2);
997asmlinkage long sys_fork(void);
998
999/* obsolete: kernel/time/time.c */
1000asmlinkage long sys_stime(time_t __user *tptr);
1001
1002/* obsolete: kernel/signal.c */
1003asmlinkage long sys_sigpending(old_sigset_t __user *uset);
1004asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set,
1005 old_sigset_t __user *oset);
1006#ifdef CONFIG_OLD_SIGSUSPEND
1007asmlinkage long sys_sigsuspend(old_sigset_t mask);
1008#endif
1009
1010#ifdef CONFIG_OLD_SIGSUSPEND3
1011asmlinkage long sys_sigsuspend(int unused1, int unused2, old_sigset_t mask);
1012#endif
1013
1014#ifdef CONFIG_OLD_SIGACTION
1015asmlinkage long sys_sigaction(int, const struct old_sigaction __user *,
1016 struct old_sigaction __user *);
1017#endif
1018asmlinkage long sys_sgetmask(void);
1019asmlinkage long sys_ssetmask(int newmask);
1020asmlinkage long sys_signal(int sig, __sighandler_t handler);
1021
1022/* obsolete: kernel/sched/core.c */
1023asmlinkage long sys_nice(int increment);
1024
1025/* obsolete: kernel/kexec_file.c */
1026asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
1027 unsigned long cmdline_len,
1028 const char __user *cmdline_ptr,
1029 unsigned long flags);
1030
1031/* obsolete: kernel/exit.c */
1032asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options);
1033
1034/* obsolete: kernel/uid16.c */
1035#ifdef CONFIG_HAVE_UID16
1036asmlinkage long sys_chown16(const char __user *filename,
1037 old_uid_t user, old_gid_t group);
1038asmlinkage long sys_lchown16(const char __user *filename,
1039 old_uid_t user, old_gid_t group);
1040asmlinkage long sys_fchown16(unsigned int fd, old_uid_t user, old_gid_t group);
1041asmlinkage long sys_setregid16(old_gid_t rgid, old_gid_t egid);
1042asmlinkage long sys_setgid16(old_gid_t gid);
1043asmlinkage long sys_setreuid16(old_uid_t ruid, old_uid_t euid);
1044asmlinkage long sys_setuid16(old_uid_t uid);
1045asmlinkage long sys_setresuid16(old_uid_t ruid, old_uid_t euid, old_uid_t suid);
1046asmlinkage long sys_getresuid16(old_uid_t __user *ruid,
1047 old_uid_t __user *euid, old_uid_t __user *suid);
1048asmlinkage long sys_setresgid16(old_gid_t rgid, old_gid_t egid, old_gid_t sgid);
1049asmlinkage long sys_getresgid16(old_gid_t __user *rgid,
1050 old_gid_t __user *egid, old_gid_t __user *sgid);
1051asmlinkage long sys_setfsuid16(old_uid_t uid);
1052asmlinkage long sys_setfsgid16(old_gid_t gid);
1053asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist);
1054asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist);
1055asmlinkage long sys_getuid16(void);
1056asmlinkage long sys_geteuid16(void);
1057asmlinkage long sys_getgid16(void);
1058asmlinkage long sys_getegid16(void);
1059#endif
1060
1061/* obsolete: net/socket.c */
1062asmlinkage long sys_socketcall(int call, unsigned long __user *args);
1063
1064/* obsolete: fs/stat.c */
1065asmlinkage long sys_stat(const char __user *filename,
1066 struct __old_kernel_stat __user *statbuf);
1067asmlinkage long sys_lstat(const char __user *filename,
1068 struct __old_kernel_stat __user *statbuf);
1069asmlinkage long sys_fstat(unsigned int fd,
1070 struct __old_kernel_stat __user *statbuf);
1071asmlinkage long sys_readlink(const char __user *path,
1072 char __user *buf, int bufsiz);
1073
1074/* obsolete: fs/select.c */
1075asmlinkage long sys_old_select(struct sel_arg_struct __user *arg);
1076
1077/* obsolete: fs/readdir.c */
1078asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int);
1079
1080/* obsolete: kernel/sys.c */
1081asmlinkage long sys_gethostname(char __user *name, int len);
1082asmlinkage long sys_uname(struct old_utsname __user *);
1083asmlinkage long sys_olduname(struct oldold_utsname __user *);
1084#ifdef __ARCH_WANT_SYS_OLD_GETRLIMIT
1085asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim);
1086#endif
1087
1088/* obsolete: ipc */
1089asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second,
1090 unsigned long third, void __user *ptr, long fifth);
1091
1092/* obsolete: mm/ */
1093asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len,
1094 unsigned long prot, unsigned long flags,
1095 unsigned long fd, unsigned long pgoff);
1096asmlinkage long sys_old_mmap(struct mmap_arg_struct __user *arg);
1097
1098
1099/*
1100 * Not a real system call, but a placeholder for syscalls which are
1101 * not implemented -- see kernel/sys_ni.c
1102 */
1103asmlinkage long sys_ni_syscall(void);
1104
1105#endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
1106
1107
1108/*
1109 * Kernel code should not call syscalls (i.e., sys_xyzyyz()) directly.
1110 * Instead, use one of the functions which work equivalently, such as
1111 * the ksys_xyzyyz() functions prototyped below.
1112 */
1113
1114int ksys_mount(char __user *dev_name, char __user *dir_name, char __user *type,
1115 unsigned long flags, void __user *data);
1116int ksys_umount(char __user *name, int flags);
1117int ksys_dup(unsigned int fildes);
1118int ksys_chroot(const char __user *filename);
1119ssize_t ksys_write(unsigned int fd, const char __user *buf, size_t count);
1120int ksys_chdir(const char __user *filename);
1121int ksys_fchmod(unsigned int fd, umode_t mode);
1122int ksys_fchown(unsigned int fd, uid_t user, gid_t group);
1123int ksys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent,
1124 unsigned int count);
1125int ksys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg);
1126off_t ksys_lseek(unsigned int fd, off_t offset, unsigned int whence);
1127ssize_t ksys_read(unsigned int fd, char __user *buf, size_t count);
1128void ksys_sync(void);
1129int ksys_unshare(unsigned long unshare_flags);
1130int ksys_setsid(void);
1131int ksys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
1132 unsigned int flags);
1133ssize_t ksys_pread64(unsigned int fd, char __user *buf, size_t count,
1134 loff_t pos);
1135ssize_t ksys_pwrite64(unsigned int fd, const char __user *buf,
1136 size_t count, loff_t pos);
1137int ksys_fallocate(int fd, int mode, loff_t offset, loff_t len);
1138#ifdef CONFIG_ADVISE_SYSCALLS
1139int ksys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice);
1140#else
1141static inline int ksys_fadvise64_64(int fd, loff_t offset, loff_t len,
1142 int advice)
1143{
1144 return -EINVAL;
1145}
1146#endif
1147unsigned long ksys_mmap_pgoff(unsigned long addr, unsigned long len,
1148 unsigned long prot, unsigned long flags,
1149 unsigned long fd, unsigned long pgoff);
1150ssize_t ksys_readahead(int fd, loff_t offset, size_t count);
1151
1152/*
1153 * The following kernel syscall equivalents are just wrappers to fs-internal
1154 * functions. Therefore, provide stubs to be inlined at the callsites.
1155 */
1156extern long do_unlinkat(int dfd, struct filename *name);
1157
1158static inline long ksys_unlink(const char __user *pathname)
1159{
1160 return do_unlinkat(AT_FDCWD, getname(pathname));
1161}
1162
1163extern long do_rmdir(int dfd, const char __user *pathname);
1164
1165static inline long ksys_rmdir(const char __user *pathname)
1166{
1167 return do_rmdir(AT_FDCWD, pathname);
1168}
1169
1170extern long do_mkdirat(int dfd, const char __user *pathname, umode_t mode);
1171
1172static inline long ksys_mkdir(const char __user *pathname, umode_t mode)
1173{
1174 return do_mkdirat(AT_FDCWD, pathname, mode);
1175}
1176
1177extern long do_symlinkat(const char __user *oldname, int newdfd,
1178 const char __user *newname);
1179
1180static inline long ksys_symlink(const char __user *oldname,
1181 const char __user *newname)
1182{
1183 return do_symlinkat(oldname, AT_FDCWD, newname);
1184}
1185
1186extern long do_mknodat(int dfd, const char __user *filename, umode_t mode,
1187 unsigned int dev);
1188
1189static inline long ksys_mknod(const char __user *filename, umode_t mode,
1190 unsigned int dev)
1191{
1192 return do_mknodat(AT_FDCWD, filename, mode, dev);
1193}
1194
1195extern int do_linkat(int olddfd, const char __user *oldname, int newdfd,
1196 const char __user *newname, int flags);
1197
1198static inline long ksys_link(const char __user *oldname,
1199 const char __user *newname)
1200{
1201 return do_linkat(AT_FDCWD, oldname, AT_FDCWD, newname, 0);
1202}
1203
1204extern int do_fchmodat(int dfd, const char __user *filename, umode_t mode);
1205
1206static inline int ksys_chmod(const char __user *filename, umode_t mode)
1207{
1208 return do_fchmodat(AT_FDCWD, filename, mode);
1209}
1210
1211extern long do_faccessat(int dfd, const char __user *filename, int mode);
1212
1213static inline long ksys_access(const char __user *filename, int mode)
1214{
1215 return do_faccessat(AT_FDCWD, filename, mode);
1216}
1217
1218extern int do_fchownat(int dfd, const char __user *filename, uid_t user,
1219 gid_t group, int flag);
1220
1221static inline long ksys_chown(const char __user *filename, uid_t user,
1222 gid_t group)
1223{
1224 return do_fchownat(AT_FDCWD, filename, user, group, 0);
1225}
1226
1227static inline long ksys_lchown(const char __user *filename, uid_t user,
1228 gid_t group)
1229{
1230 return do_fchownat(AT_FDCWD, filename, user, group,
1231 AT_SYMLINK_NOFOLLOW);
1232}
1233
1234extern long do_sys_ftruncate(unsigned int fd, loff_t length, int small);
1235
1236static inline long ksys_ftruncate(unsigned int fd, unsigned long length)
1237{
1238 return do_sys_ftruncate(fd, length, 1);
1239}
1240
1241extern int __close_fd(struct files_struct *files, unsigned int fd);
1242
1243/*
1244 * In contrast to sys_close(), this stub does not check whether the syscall
1245 * should or should not be restarted, but returns the raw error codes from
1246 * __close_fd().
1247 */
1248static inline int ksys_close(unsigned int fd)
1249{
1250 return __close_fd(current->files, fd);
1251}
1252
1253extern long do_sys_open(int dfd, const char __user *filename, int flags,
1254 umode_t mode);
1255
1256static inline long ksys_open(const char __user *filename, int flags,
1257 umode_t mode)
1258{
1259 if (force_o_largefile())
1260 flags |= O_LARGEFILE;
1261 return do_sys_open(AT_FDCWD, filename, flags, mode);
1262}
1263
1264extern long do_sys_truncate(const char __user *pathname, loff_t length);
1265
1266static inline long ksys_truncate(const char __user *pathname, loff_t length)
1267{
1268 return do_sys_truncate(pathname, length);
1269}
1270
1271#endif