1 // SPDX-License-Identifier: GPL-2.0
2 
3 #include <linux/linkage.h>
4 #include <linux/errno.h>
5 
6 #include <asm/unistd.h>
7 
8 #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER
9 /* Architectures may override COND_SYSCALL and COND_SYSCALL_COMPAT */
10 #include <asm/syscall_wrapper.h>
11 #endif /* CONFIG_ARCH_HAS_SYSCALL_WRAPPER */
12 
13 /*  we can't #include <linux/syscalls.h> here,
14     but tell gcc to not warn with -Wmissing-prototypes  */
15 asmlinkage long sys_ni_syscall(void);
16 
17 /*
18  * Non-implemented system calls get redirected here.
19  */
sys_ni_syscall(void)20 asmlinkage long sys_ni_syscall(void)
21 {
22 	return -ENOSYS;
23 }
24 
25 #ifndef COND_SYSCALL
26 #define COND_SYSCALL(name) cond_syscall(sys_##name)
27 #endif /* COND_SYSCALL */
28 
29 #ifndef COND_SYSCALL_COMPAT
30 #define COND_SYSCALL_COMPAT(name) cond_syscall(compat_sys_##name)
31 #endif /* COND_SYSCALL_COMPAT */
32 
33 /*
34  * This list is kept in the same order as include/uapi/asm-generic/unistd.h.
35  * Architecture specific entries go below, followed by deprecated or obsolete
36  * system calls.
37  */
38 
39 COND_SYSCALL(io_setup);
40 COND_SYSCALL_COMPAT(io_setup);
41 COND_SYSCALL(io_destroy);
42 COND_SYSCALL(io_submit);
43 COND_SYSCALL_COMPAT(io_submit);
44 COND_SYSCALL(io_cancel);
45 COND_SYSCALL(io_getevents_time32);
46 COND_SYSCALL(io_getevents);
47 COND_SYSCALL(io_pgetevents_time32);
48 COND_SYSCALL(io_pgetevents);
49 COND_SYSCALL_COMPAT(io_pgetevents_time32);
50 COND_SYSCALL_COMPAT(io_pgetevents);
51 COND_SYSCALL(io_uring_setup);
52 COND_SYSCALL(io_uring_enter);
53 COND_SYSCALL(io_uring_register);
54 
55 /* fs/xattr.c */
56 
57 /* fs/dcache.c */
58 
59 /* fs/cookies.c */
60 COND_SYSCALL(lookup_dcookie);
61 COND_SYSCALL_COMPAT(lookup_dcookie);
62 
63 /* fs/eventfd.c */
64 COND_SYSCALL(eventfd2);
65 
66 /* fs/eventfd.c */
67 COND_SYSCALL(epoll_create1);
68 COND_SYSCALL(epoll_ctl);
69 COND_SYSCALL(epoll_pwait);
70 COND_SYSCALL_COMPAT(epoll_pwait);
71 COND_SYSCALL(epoll_pwait2);
72 COND_SYSCALL_COMPAT(epoll_pwait2);
73 
74 /* fs/fcntl.c */
75 
76 /* fs/inotify_user.c */
77 COND_SYSCALL(inotify_init1);
78 COND_SYSCALL(inotify_add_watch);
79 COND_SYSCALL(inotify_rm_watch);
80 
81 /* fs/ioctl.c */
82 
83 /* fs/ioprio.c */
84 COND_SYSCALL(ioprio_set);
85 COND_SYSCALL(ioprio_get);
86 
87 /* fs/locks.c */
88 COND_SYSCALL(flock);
89 
90 /* fs/namei.c */
91 
92 /* fs/namespace.c */
93 
94 /* fs/nfsctl.c */
95 
96 /* fs/open.c */
97 
98 /* fs/pipe.c */
99 
100 /* fs/quota.c */
101 COND_SYSCALL(quotactl);
102 COND_SYSCALL(quotactl_fd);
103 
104 /* fs/readdir.c */
105 
106 /* fs/read_write.c */
107 
108 /* fs/sendfile.c */
109 
110 /* fs/select.c */
111 
112 /* fs/signalfd.c */
113 COND_SYSCALL(signalfd4);
114 COND_SYSCALL_COMPAT(signalfd4);
115 
116 /* fs/splice.c */
117 
118 /* fs/stat.c */
119 
120 /* fs/sync.c */
121 
122 /* fs/timerfd.c */
123 COND_SYSCALL(timerfd_create);
124 COND_SYSCALL(timerfd_settime);
125 COND_SYSCALL(timerfd_settime32);
126 COND_SYSCALL(timerfd_gettime);
127 COND_SYSCALL(timerfd_gettime32);
128 
129 /* fs/utimes.c */
130 
131 /* kernel/acct.c */
132 COND_SYSCALL(acct);
133 
134 /* kernel/capability.c */
135 COND_SYSCALL(capget);
136 COND_SYSCALL(capset);
137 
138 /* kernel/exec_domain.c */
139 
140 /* kernel/exit.c */
141 
142 /* kernel/fork.c */
143 /* __ARCH_WANT_SYS_CLONE3 */
144 COND_SYSCALL(clone3);
145 
146 /* kernel/futex/syscalls.c */
147 COND_SYSCALL(futex);
148 COND_SYSCALL(futex_time32);
149 COND_SYSCALL(set_robust_list);
150 COND_SYSCALL_COMPAT(set_robust_list);
151 COND_SYSCALL(get_robust_list);
152 COND_SYSCALL_COMPAT(get_robust_list);
153 COND_SYSCALL(futex_waitv);
154 
155 /* kernel/hrtimer.c */
156 
157 /* kernel/itimer.c */
158 
159 /* kernel/kexec.c */
160 COND_SYSCALL(kexec_load);
161 COND_SYSCALL_COMPAT(kexec_load);
162 
163 /* kernel/module.c */
164 COND_SYSCALL(init_module);
165 COND_SYSCALL(delete_module);
166 
167 /* kernel/posix-timers.c */
168 
169 /* kernel/printk.c */
170 COND_SYSCALL(syslog);
171 
172 /* kernel/ptrace.c */
173 
174 /* kernel/sched/core.c */
175 
176 /* kernel/sys.c */
177 COND_SYSCALL(setregid);
178 COND_SYSCALL(setgid);
179 COND_SYSCALL(setreuid);
180 COND_SYSCALL(setuid);
181 COND_SYSCALL(setresuid);
182 COND_SYSCALL(getresuid);
183 COND_SYSCALL(setresgid);
184 COND_SYSCALL(getresgid);
185 COND_SYSCALL(setfsuid);
186 COND_SYSCALL(setfsgid);
187 COND_SYSCALL(setgroups);
188 COND_SYSCALL(getgroups);
189 
190 /* kernel/time.c */
191 
192 /* kernel/timer.c */
193 
194 /* ipc/mqueue.c */
195 COND_SYSCALL(mq_open);
196 COND_SYSCALL_COMPAT(mq_open);
197 COND_SYSCALL(mq_unlink);
198 COND_SYSCALL(mq_timedsend);
199 COND_SYSCALL(mq_timedsend_time32);
200 COND_SYSCALL(mq_timedreceive);
201 COND_SYSCALL(mq_timedreceive_time32);
202 COND_SYSCALL(mq_notify);
203 COND_SYSCALL_COMPAT(mq_notify);
204 COND_SYSCALL(mq_getsetattr);
205 COND_SYSCALL_COMPAT(mq_getsetattr);
206 
207 /* ipc/msg.c */
208 COND_SYSCALL(msgget);
209 COND_SYSCALL(old_msgctl);
210 COND_SYSCALL(msgctl);
211 COND_SYSCALL_COMPAT(msgctl);
212 COND_SYSCALL_COMPAT(old_msgctl);
213 COND_SYSCALL(msgrcv);
214 COND_SYSCALL_COMPAT(msgrcv);
215 COND_SYSCALL(msgsnd);
216 COND_SYSCALL_COMPAT(msgsnd);
217 
218 /* ipc/sem.c */
219 COND_SYSCALL(semget);
220 COND_SYSCALL(old_semctl);
221 COND_SYSCALL(semctl);
222 COND_SYSCALL_COMPAT(semctl);
223 COND_SYSCALL_COMPAT(old_semctl);
224 COND_SYSCALL(semtimedop);
225 COND_SYSCALL(semtimedop_time32);
226 COND_SYSCALL(semop);
227 
228 /* ipc/shm.c */
229 COND_SYSCALL(shmget);
230 COND_SYSCALL(old_shmctl);
231 COND_SYSCALL(shmctl);
232 COND_SYSCALL_COMPAT(shmctl);
233 COND_SYSCALL_COMPAT(old_shmctl);
234 COND_SYSCALL(shmat);
235 COND_SYSCALL_COMPAT(shmat);
236 COND_SYSCALL(shmdt);
237 
238 /* net/socket.c */
239 COND_SYSCALL(socket);
240 COND_SYSCALL(socketpair);
241 COND_SYSCALL(bind);
242 COND_SYSCALL(listen);
243 COND_SYSCALL(accept);
244 COND_SYSCALL(connect);
245 COND_SYSCALL(getsockname);
246 COND_SYSCALL(getpeername);
247 COND_SYSCALL(setsockopt);
248 COND_SYSCALL_COMPAT(setsockopt);
249 COND_SYSCALL(getsockopt);
250 COND_SYSCALL_COMPAT(getsockopt);
251 COND_SYSCALL(sendto);
252 COND_SYSCALL(shutdown);
253 COND_SYSCALL(recvfrom);
254 COND_SYSCALL_COMPAT(recvfrom);
255 COND_SYSCALL(sendmsg);
256 COND_SYSCALL_COMPAT(sendmsg);
257 COND_SYSCALL(recvmsg);
258 COND_SYSCALL_COMPAT(recvmsg);
259 
260 /* mm/filemap.c */
261 
262 /* mm/nommu.c, also with MMU */
263 COND_SYSCALL(mremap);
264 
265 /* security/keys/keyctl.c */
266 COND_SYSCALL(add_key);
267 COND_SYSCALL(request_key);
268 COND_SYSCALL(keyctl);
269 COND_SYSCALL_COMPAT(keyctl);
270 
271 /* security/landlock/syscalls.c */
272 COND_SYSCALL(landlock_create_ruleset);
273 COND_SYSCALL(landlock_add_rule);
274 COND_SYSCALL(landlock_restrict_self);
275 
276 /* arch/example/kernel/sys_example.c */
277 
278 /* mm/fadvise.c */
279 COND_SYSCALL(fadvise64_64);
280 
281 /* mm/, CONFIG_MMU only */
282 COND_SYSCALL(swapon);
283 COND_SYSCALL(swapoff);
284 COND_SYSCALL(mprotect);
285 COND_SYSCALL(msync);
286 COND_SYSCALL(mlock);
287 COND_SYSCALL(munlock);
288 COND_SYSCALL(mlockall);
289 COND_SYSCALL(munlockall);
290 COND_SYSCALL(mincore);
291 COND_SYSCALL(madvise);
292 COND_SYSCALL(process_madvise);
293 COND_SYSCALL(process_mrelease);
294 COND_SYSCALL(remap_file_pages);
295 COND_SYSCALL(mbind);
296 COND_SYSCALL(get_mempolicy);
297 COND_SYSCALL(set_mempolicy);
298 COND_SYSCALL(migrate_pages);
299 COND_SYSCALL(move_pages);
300 
301 COND_SYSCALL(perf_event_open);
302 COND_SYSCALL(accept4);
303 COND_SYSCALL(recvmmsg);
304 COND_SYSCALL(recvmmsg_time32);
305 COND_SYSCALL_COMPAT(recvmmsg_time32);
306 COND_SYSCALL_COMPAT(recvmmsg_time64);
307 
308 /*
309  * Architecture specific syscalls: see further below
310  */
311 
312 /* fanotify */
313 COND_SYSCALL(fanotify_init);
314 COND_SYSCALL(fanotify_mark);
315 
316 /* open by handle */
317 COND_SYSCALL(name_to_handle_at);
318 COND_SYSCALL(open_by_handle_at);
319 COND_SYSCALL_COMPAT(open_by_handle_at);
320 
321 COND_SYSCALL(sendmmsg);
322 COND_SYSCALL_COMPAT(sendmmsg);
323 COND_SYSCALL(process_vm_readv);
324 COND_SYSCALL_COMPAT(process_vm_readv);
325 COND_SYSCALL(process_vm_writev);
326 COND_SYSCALL_COMPAT(process_vm_writev);
327 
328 /* compare kernel pointers */
329 COND_SYSCALL(kcmp);
330 
331 COND_SYSCALL(finit_module);
332 
333 /* operate on Secure Computing state */
334 COND_SYSCALL(seccomp);
335 
336 COND_SYSCALL(memfd_create);
337 
338 /* access BPF programs and maps */
339 COND_SYSCALL(bpf);
340 
341 /* execveat */
342 COND_SYSCALL(execveat);
343 
344 COND_SYSCALL(userfaultfd);
345 
346 /* membarrier */
347 COND_SYSCALL(membarrier);
348 
349 COND_SYSCALL(mlock2);
350 
351 COND_SYSCALL(copy_file_range);
352 
353 /* memory protection keys */
354 COND_SYSCALL(pkey_mprotect);
355 COND_SYSCALL(pkey_alloc);
356 COND_SYSCALL(pkey_free);
357 
358 /* memfd_secret */
359 COND_SYSCALL(memfd_secret);
360 
361 /*
362  * Architecture specific weak syscall entries.
363  */
364 
365 /* pciconfig: alpha, arm, arm64, ia64, sparc */
366 COND_SYSCALL(pciconfig_read);
367 COND_SYSCALL(pciconfig_write);
368 COND_SYSCALL(pciconfig_iobase);
369 
370 /* sys_socketcall: arm, mips, x86, ... */
371 COND_SYSCALL(socketcall);
372 COND_SYSCALL_COMPAT(socketcall);
373 
374 /* compat syscalls for arm64, x86, ... */
375 COND_SYSCALL_COMPAT(fanotify_mark);
376 
377 /* x86 */
378 COND_SYSCALL(vm86old);
379 COND_SYSCALL(modify_ldt);
380 COND_SYSCALL(vm86);
381 COND_SYSCALL(kexec_file_load);
382 
383 /* s390 */
384 COND_SYSCALL(s390_pci_mmio_read);
385 COND_SYSCALL(s390_pci_mmio_write);
386 COND_SYSCALL(s390_ipc);
387 COND_SYSCALL_COMPAT(s390_ipc);
388 
389 /* powerpc */
390 COND_SYSCALL(rtas);
391 COND_SYSCALL(spu_run);
392 COND_SYSCALL(spu_create);
393 COND_SYSCALL(subpage_prot);
394 
395 
396 /*
397  * Deprecated system calls which are still defined in
398  * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
399  */
400 
401 /* __ARCH_WANT_SYSCALL_NO_FLAGS */
402 COND_SYSCALL(epoll_create);
403 COND_SYSCALL(inotify_init);
404 COND_SYSCALL(eventfd);
405 COND_SYSCALL(signalfd);
406 COND_SYSCALL_COMPAT(signalfd);
407 
408 /* __ARCH_WANT_SYSCALL_OFF_T */
409 COND_SYSCALL(fadvise64);
410 
411 /* __ARCH_WANT_SYSCALL_DEPRECATED */
412 COND_SYSCALL(epoll_wait);
413 COND_SYSCALL(recv);
414 COND_SYSCALL_COMPAT(recv);
415 COND_SYSCALL(send);
416 COND_SYSCALL(uselib);
417 
418 /* optional: time32 */
419 COND_SYSCALL(time32);
420 COND_SYSCALL(stime32);
421 COND_SYSCALL(utime32);
422 COND_SYSCALL(adjtimex_time32);
423 COND_SYSCALL(sched_rr_get_interval_time32);
424 COND_SYSCALL(nanosleep_time32);
425 COND_SYSCALL(rt_sigtimedwait_time32);
426 COND_SYSCALL_COMPAT(rt_sigtimedwait_time32);
427 COND_SYSCALL(timer_settime32);
428 COND_SYSCALL(timer_gettime32);
429 COND_SYSCALL(clock_settime32);
430 COND_SYSCALL(clock_gettime32);
431 COND_SYSCALL(clock_getres_time32);
432 COND_SYSCALL(clock_nanosleep_time32);
433 COND_SYSCALL(utimes_time32);
434 COND_SYSCALL(futimesat_time32);
435 COND_SYSCALL(pselect6_time32);
436 COND_SYSCALL_COMPAT(pselect6_time32);
437 COND_SYSCALL(ppoll_time32);
438 COND_SYSCALL_COMPAT(ppoll_time32);
439 COND_SYSCALL(utimensat_time32);
440 COND_SYSCALL(clock_adjtime32);
441 
442 /*
443  * The syscalls below are not found in include/uapi/asm-generic/unistd.h
444  */
445 
446 /* obsolete: SGETMASK_SYSCALL */
447 COND_SYSCALL(sgetmask);
448 COND_SYSCALL(ssetmask);
449 
450 /* obsolete: SYSFS_SYSCALL */
451 COND_SYSCALL(sysfs);
452 
453 /* obsolete: __ARCH_WANT_SYS_IPC */
454 COND_SYSCALL(ipc);
455 COND_SYSCALL_COMPAT(ipc);
456 
457 /* obsolete: UID16 */
458 COND_SYSCALL(chown16);
459 COND_SYSCALL(fchown16);
460 COND_SYSCALL(getegid16);
461 COND_SYSCALL(geteuid16);
462 COND_SYSCALL(getgid16);
463 COND_SYSCALL(getgroups16);
464 COND_SYSCALL(getresgid16);
465 COND_SYSCALL(getresuid16);
466 COND_SYSCALL(getuid16);
467 COND_SYSCALL(lchown16);
468 COND_SYSCALL(setfsgid16);
469 COND_SYSCALL(setfsuid16);
470 COND_SYSCALL(setgid16);
471 COND_SYSCALL(setgroups16);
472 COND_SYSCALL(setregid16);
473 COND_SYSCALL(setresgid16);
474 COND_SYSCALL(setresuid16);
475 COND_SYSCALL(setreuid16);
476 COND_SYSCALL(setuid16);
477 
478 /* restartable sequence */
479 COND_SYSCALL(rseq);
480