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.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 
154 /* kernel/hrtimer.c */
155 
156 /* kernel/itimer.c */
157 
158 /* kernel/kexec.c */
159 COND_SYSCALL(kexec_load);
160 COND_SYSCALL_COMPAT(kexec_load);
161 
162 /* kernel/module.c */
163 COND_SYSCALL(init_module);
164 COND_SYSCALL(delete_module);
165 
166 /* kernel/posix-timers.c */
167 
168 /* kernel/printk.c */
169 COND_SYSCALL(syslog);
170 
171 /* kernel/ptrace.c */
172 
173 /* kernel/sched/core.c */
174 
175 /* kernel/sys.c */
176 COND_SYSCALL(setregid);
177 COND_SYSCALL(setgid);
178 COND_SYSCALL(setreuid);
179 COND_SYSCALL(setuid);
180 COND_SYSCALL(setresuid);
181 COND_SYSCALL(getresuid);
182 COND_SYSCALL(setresgid);
183 COND_SYSCALL(getresgid);
184 COND_SYSCALL(setfsuid);
185 COND_SYSCALL(setfsgid);
186 COND_SYSCALL(setgroups);
187 COND_SYSCALL(getgroups);
188 
189 /* kernel/time.c */
190 
191 /* kernel/timer.c */
192 
193 /* ipc/mqueue.c */
194 COND_SYSCALL(mq_open);
195 COND_SYSCALL_COMPAT(mq_open);
196 COND_SYSCALL(mq_unlink);
197 COND_SYSCALL(mq_timedsend);
198 COND_SYSCALL(mq_timedsend_time32);
199 COND_SYSCALL(mq_timedreceive);
200 COND_SYSCALL(mq_timedreceive_time32);
201 COND_SYSCALL(mq_notify);
202 COND_SYSCALL_COMPAT(mq_notify);
203 COND_SYSCALL(mq_getsetattr);
204 COND_SYSCALL_COMPAT(mq_getsetattr);
205 
206 /* ipc/msg.c */
207 COND_SYSCALL(msgget);
208 COND_SYSCALL(old_msgctl);
209 COND_SYSCALL(msgctl);
210 COND_SYSCALL_COMPAT(msgctl);
211 COND_SYSCALL_COMPAT(old_msgctl);
212 COND_SYSCALL(msgrcv);
213 COND_SYSCALL_COMPAT(msgrcv);
214 COND_SYSCALL(msgsnd);
215 COND_SYSCALL_COMPAT(msgsnd);
216 
217 /* ipc/sem.c */
218 COND_SYSCALL(semget);
219 COND_SYSCALL(old_semctl);
220 COND_SYSCALL(semctl);
221 COND_SYSCALL_COMPAT(semctl);
222 COND_SYSCALL_COMPAT(old_semctl);
223 COND_SYSCALL(semtimedop);
224 COND_SYSCALL(semtimedop_time32);
225 COND_SYSCALL(semop);
226 
227 /* ipc/shm.c */
228 COND_SYSCALL(shmget);
229 COND_SYSCALL(old_shmctl);
230 COND_SYSCALL(shmctl);
231 COND_SYSCALL_COMPAT(shmctl);
232 COND_SYSCALL_COMPAT(old_shmctl);
233 COND_SYSCALL(shmat);
234 COND_SYSCALL_COMPAT(shmat);
235 COND_SYSCALL(shmdt);
236 
237 /* net/socket.c */
238 COND_SYSCALL(socket);
239 COND_SYSCALL(socketpair);
240 COND_SYSCALL(bind);
241 COND_SYSCALL(listen);
242 COND_SYSCALL(accept);
243 COND_SYSCALL(connect);
244 COND_SYSCALL(getsockname);
245 COND_SYSCALL(getpeername);
246 COND_SYSCALL(setsockopt);
247 COND_SYSCALL_COMPAT(setsockopt);
248 COND_SYSCALL(getsockopt);
249 COND_SYSCALL_COMPAT(getsockopt);
250 COND_SYSCALL(sendto);
251 COND_SYSCALL(shutdown);
252 COND_SYSCALL(recvfrom);
253 COND_SYSCALL_COMPAT(recvfrom);
254 COND_SYSCALL(sendmsg);
255 COND_SYSCALL_COMPAT(sendmsg);
256 COND_SYSCALL(recvmsg);
257 COND_SYSCALL_COMPAT(recvmsg);
258 
259 /* mm/filemap.c */
260 
261 /* mm/nommu.c, also with MMU */
262 COND_SYSCALL(mremap);
263 
264 /* security/keys/keyctl.c */
265 COND_SYSCALL(add_key);
266 COND_SYSCALL(request_key);
267 COND_SYSCALL(keyctl);
268 COND_SYSCALL_COMPAT(keyctl);
269 
270 /* security/landlock/syscalls.c */
271 COND_SYSCALL(landlock_create_ruleset);
272 COND_SYSCALL(landlock_add_rule);
273 COND_SYSCALL(landlock_restrict_self);
274 
275 /* arch/example/kernel/sys_example.c */
276 
277 /* mm/fadvise.c */
278 COND_SYSCALL(fadvise64_64);
279 
280 /* mm/, CONFIG_MMU only */
281 COND_SYSCALL(swapon);
282 COND_SYSCALL(swapoff);
283 COND_SYSCALL(mprotect);
284 COND_SYSCALL(msync);
285 COND_SYSCALL(mlock);
286 COND_SYSCALL(munlock);
287 COND_SYSCALL(mlockall);
288 COND_SYSCALL(munlockall);
289 COND_SYSCALL(mincore);
290 COND_SYSCALL(madvise);
291 COND_SYSCALL(process_madvise);
292 COND_SYSCALL(process_mrelease);
293 COND_SYSCALL(remap_file_pages);
294 COND_SYSCALL(mbind);
295 COND_SYSCALL(get_mempolicy);
296 COND_SYSCALL(set_mempolicy);
297 COND_SYSCALL(migrate_pages);
298 COND_SYSCALL(move_pages);
299 
300 COND_SYSCALL(perf_event_open);
301 COND_SYSCALL(accept4);
302 COND_SYSCALL(recvmmsg);
303 COND_SYSCALL(recvmmsg_time32);
304 COND_SYSCALL_COMPAT(recvmmsg_time32);
305 COND_SYSCALL_COMPAT(recvmmsg_time64);
306 
307 /*
308  * Architecture specific syscalls: see further below
309  */
310 
311 /* fanotify */
312 COND_SYSCALL(fanotify_init);
313 COND_SYSCALL(fanotify_mark);
314 
315 /* open by handle */
316 COND_SYSCALL(name_to_handle_at);
317 COND_SYSCALL(open_by_handle_at);
318 COND_SYSCALL_COMPAT(open_by_handle_at);
319 
320 COND_SYSCALL(sendmmsg);
321 COND_SYSCALL_COMPAT(sendmmsg);
322 COND_SYSCALL(process_vm_readv);
323 COND_SYSCALL_COMPAT(process_vm_readv);
324 COND_SYSCALL(process_vm_writev);
325 COND_SYSCALL_COMPAT(process_vm_writev);
326 
327 /* compare kernel pointers */
328 COND_SYSCALL(kcmp);
329 
330 COND_SYSCALL(finit_module);
331 
332 /* operate on Secure Computing state */
333 COND_SYSCALL(seccomp);
334 
335 COND_SYSCALL(memfd_create);
336 
337 /* access BPF programs and maps */
338 COND_SYSCALL(bpf);
339 
340 /* execveat */
341 COND_SYSCALL(execveat);
342 
343 COND_SYSCALL(userfaultfd);
344 
345 /* membarrier */
346 COND_SYSCALL(membarrier);
347 
348 COND_SYSCALL(mlock2);
349 
350 COND_SYSCALL(copy_file_range);
351 
352 /* memory protection keys */
353 COND_SYSCALL(pkey_mprotect);
354 COND_SYSCALL(pkey_alloc);
355 COND_SYSCALL(pkey_free);
356 
357 /* memfd_secret */
358 COND_SYSCALL(memfd_secret);
359 
360 /*
361  * Architecture specific weak syscall entries.
362  */
363 
364 /* pciconfig: alpha, arm, arm64, ia64, sparc */
365 COND_SYSCALL(pciconfig_read);
366 COND_SYSCALL(pciconfig_write);
367 COND_SYSCALL(pciconfig_iobase);
368 
369 /* sys_socketcall: arm, mips, x86, ... */
370 COND_SYSCALL(socketcall);
371 COND_SYSCALL_COMPAT(socketcall);
372 
373 /* compat syscalls for arm64, x86, ... */
374 COND_SYSCALL_COMPAT(fanotify_mark);
375 
376 /* x86 */
377 COND_SYSCALL(vm86old);
378 COND_SYSCALL(modify_ldt);
379 COND_SYSCALL(vm86);
380 COND_SYSCALL(kexec_file_load);
381 
382 /* s390 */
383 COND_SYSCALL(s390_pci_mmio_read);
384 COND_SYSCALL(s390_pci_mmio_write);
385 COND_SYSCALL(s390_ipc);
386 COND_SYSCALL_COMPAT(s390_ipc);
387 
388 /* powerpc */
389 COND_SYSCALL(rtas);
390 COND_SYSCALL(spu_run);
391 COND_SYSCALL(spu_create);
392 COND_SYSCALL(subpage_prot);
393 
394 
395 /*
396  * Deprecated system calls which are still defined in
397  * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
398  */
399 
400 /* __ARCH_WANT_SYSCALL_NO_FLAGS */
401 COND_SYSCALL(epoll_create);
402 COND_SYSCALL(inotify_init);
403 COND_SYSCALL(eventfd);
404 COND_SYSCALL(signalfd);
405 COND_SYSCALL_COMPAT(signalfd);
406 
407 /* __ARCH_WANT_SYSCALL_OFF_T */
408 COND_SYSCALL(fadvise64);
409 
410 /* __ARCH_WANT_SYSCALL_DEPRECATED */
411 COND_SYSCALL(epoll_wait);
412 COND_SYSCALL(recv);
413 COND_SYSCALL_COMPAT(recv);
414 COND_SYSCALL(send);
415 COND_SYSCALL(uselib);
416 
417 /* optional: time32 */
418 COND_SYSCALL(time32);
419 COND_SYSCALL(stime32);
420 COND_SYSCALL(utime32);
421 COND_SYSCALL(adjtimex_time32);
422 COND_SYSCALL(sched_rr_get_interval_time32);
423 COND_SYSCALL(nanosleep_time32);
424 COND_SYSCALL(rt_sigtimedwait_time32);
425 COND_SYSCALL_COMPAT(rt_sigtimedwait_time32);
426 COND_SYSCALL(timer_settime32);
427 COND_SYSCALL(timer_gettime32);
428 COND_SYSCALL(clock_settime32);
429 COND_SYSCALL(clock_gettime32);
430 COND_SYSCALL(clock_getres_time32);
431 COND_SYSCALL(clock_nanosleep_time32);
432 COND_SYSCALL(utimes_time32);
433 COND_SYSCALL(futimesat_time32);
434 COND_SYSCALL(pselect6_time32);
435 COND_SYSCALL_COMPAT(pselect6_time32);
436 COND_SYSCALL(ppoll_time32);
437 COND_SYSCALL_COMPAT(ppoll_time32);
438 COND_SYSCALL(utimensat_time32);
439 COND_SYSCALL(clock_adjtime32);
440 
441 /*
442  * The syscalls below are not found in include/uapi/asm-generic/unistd.h
443  */
444 
445 /* obsolete: SGETMASK_SYSCALL */
446 COND_SYSCALL(sgetmask);
447 COND_SYSCALL(ssetmask);
448 
449 /* obsolete: SYSFS_SYSCALL */
450 COND_SYSCALL(sysfs);
451 
452 /* obsolete: __ARCH_WANT_SYS_IPC */
453 COND_SYSCALL(ipc);
454 COND_SYSCALL_COMPAT(ipc);
455 
456 /* obsolete: UID16 */
457 COND_SYSCALL(chown16);
458 COND_SYSCALL(fchown16);
459 COND_SYSCALL(getegid16);
460 COND_SYSCALL(geteuid16);
461 COND_SYSCALL(getgid16);
462 COND_SYSCALL(getgroups16);
463 COND_SYSCALL(getresgid16);
464 COND_SYSCALL(getresuid16);
465 COND_SYSCALL(getuid16);
466 COND_SYSCALL(lchown16);
467 COND_SYSCALL(setfsgid16);
468 COND_SYSCALL(setfsuid16);
469 COND_SYSCALL(setgid16);
470 COND_SYSCALL(setgroups16);
471 COND_SYSCALL(setregid16);
472 COND_SYSCALL(setresgid16);
473 COND_SYSCALL(setresuid16);
474 COND_SYSCALL(setreuid16);
475 COND_SYSCALL(setuid16);
476 
477 /* restartable sequence */
478 COND_SYSCALL(rseq);
479