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 
72 /* fs/fcntl.c */
73 
74 /* fs/inotify_user.c */
75 COND_SYSCALL(inotify_init1);
76 COND_SYSCALL(inotify_add_watch);
77 COND_SYSCALL(inotify_rm_watch);
78 
79 /* fs/ioctl.c */
80 
81 /* fs/ioprio.c */
82 COND_SYSCALL(ioprio_set);
83 COND_SYSCALL(ioprio_get);
84 
85 /* fs/locks.c */
86 COND_SYSCALL(flock);
87 
88 /* fs/namei.c */
89 
90 /* fs/namespace.c */
91 
92 /* fs/nfsctl.c */
93 
94 /* fs/open.c */
95 
96 /* fs/pipe.c */
97 
98 /* fs/quota.c */
99 COND_SYSCALL(quotactl);
100 
101 /* fs/readdir.c */
102 
103 /* fs/read_write.c */
104 
105 /* fs/sendfile.c */
106 
107 /* fs/select.c */
108 
109 /* fs/signalfd.c */
110 COND_SYSCALL(signalfd4);
111 COND_SYSCALL_COMPAT(signalfd4);
112 
113 /* fs/splice.c */
114 
115 /* fs/stat.c */
116 
117 /* fs/sync.c */
118 
119 /* fs/timerfd.c */
120 COND_SYSCALL(timerfd_create);
121 COND_SYSCALL(timerfd_settime);
122 COND_SYSCALL(timerfd_settime32);
123 COND_SYSCALL(timerfd_gettime);
124 COND_SYSCALL(timerfd_gettime32);
125 
126 /* fs/utimes.c */
127 
128 /* kernel/acct.c */
129 COND_SYSCALL(acct);
130 
131 /* kernel/capability.c */
132 COND_SYSCALL(capget);
133 COND_SYSCALL(capset);
134 
135 /* kernel/exec_domain.c */
136 
137 /* kernel/exit.c */
138 
139 /* kernel/fork.c */
140 /* __ARCH_WANT_SYS_CLONE3 */
141 COND_SYSCALL(clone3);
142 
143 /* kernel/futex.c */
144 COND_SYSCALL(futex);
145 COND_SYSCALL(futex_time32);
146 COND_SYSCALL(set_robust_list);
147 COND_SYSCALL_COMPAT(set_robust_list);
148 COND_SYSCALL(get_robust_list);
149 COND_SYSCALL_COMPAT(get_robust_list);
150 
151 /* kernel/hrtimer.c */
152 
153 /* kernel/itimer.c */
154 
155 /* kernel/kexec.c */
156 COND_SYSCALL(kexec_load);
157 COND_SYSCALL_COMPAT(kexec_load);
158 
159 /* kernel/module.c */
160 COND_SYSCALL(init_module);
161 COND_SYSCALL(delete_module);
162 
163 /* kernel/posix-timers.c */
164 
165 /* kernel/printk.c */
166 COND_SYSCALL(syslog);
167 
168 /* kernel/ptrace.c */
169 
170 /* kernel/sched/core.c */
171 
172 /* kernel/sys.c */
173 COND_SYSCALL(setregid);
174 COND_SYSCALL(setgid);
175 COND_SYSCALL(setreuid);
176 COND_SYSCALL(setuid);
177 COND_SYSCALL(setresuid);
178 COND_SYSCALL(getresuid);
179 COND_SYSCALL(setresgid);
180 COND_SYSCALL(getresgid);
181 COND_SYSCALL(setfsuid);
182 COND_SYSCALL(setfsgid);
183 COND_SYSCALL(setgroups);
184 COND_SYSCALL(getgroups);
185 
186 /* kernel/time.c */
187 
188 /* kernel/timer.c */
189 
190 /* ipc/mqueue.c */
191 COND_SYSCALL(mq_open);
192 COND_SYSCALL_COMPAT(mq_open);
193 COND_SYSCALL(mq_unlink);
194 COND_SYSCALL(mq_timedsend);
195 COND_SYSCALL(mq_timedsend_time32);
196 COND_SYSCALL(mq_timedreceive);
197 COND_SYSCALL(mq_timedreceive_time32);
198 COND_SYSCALL(mq_notify);
199 COND_SYSCALL_COMPAT(mq_notify);
200 COND_SYSCALL(mq_getsetattr);
201 COND_SYSCALL_COMPAT(mq_getsetattr);
202 
203 /* ipc/msg.c */
204 COND_SYSCALL(msgget);
205 COND_SYSCALL(old_msgctl);
206 COND_SYSCALL(msgctl);
207 COND_SYSCALL_COMPAT(msgctl);
208 COND_SYSCALL_COMPAT(old_msgctl);
209 COND_SYSCALL(msgrcv);
210 COND_SYSCALL_COMPAT(msgrcv);
211 COND_SYSCALL(msgsnd);
212 COND_SYSCALL_COMPAT(msgsnd);
213 
214 /* ipc/sem.c */
215 COND_SYSCALL(semget);
216 COND_SYSCALL(old_semctl);
217 COND_SYSCALL(semctl);
218 COND_SYSCALL_COMPAT(semctl);
219 COND_SYSCALL_COMPAT(old_semctl);
220 COND_SYSCALL(semtimedop);
221 COND_SYSCALL(semtimedop_time32);
222 COND_SYSCALL(semop);
223 
224 /* ipc/shm.c */
225 COND_SYSCALL(shmget);
226 COND_SYSCALL(old_shmctl);
227 COND_SYSCALL(shmctl);
228 COND_SYSCALL_COMPAT(shmctl);
229 COND_SYSCALL_COMPAT(old_shmctl);
230 COND_SYSCALL(shmat);
231 COND_SYSCALL_COMPAT(shmat);
232 COND_SYSCALL(shmdt);
233 
234 /* net/socket.c */
235 COND_SYSCALL(socket);
236 COND_SYSCALL(socketpair);
237 COND_SYSCALL(bind);
238 COND_SYSCALL(listen);
239 COND_SYSCALL(accept);
240 COND_SYSCALL(connect);
241 COND_SYSCALL(getsockname);
242 COND_SYSCALL(getpeername);
243 COND_SYSCALL(setsockopt);
244 COND_SYSCALL_COMPAT(setsockopt);
245 COND_SYSCALL(getsockopt);
246 COND_SYSCALL_COMPAT(getsockopt);
247 COND_SYSCALL(sendto);
248 COND_SYSCALL(shutdown);
249 COND_SYSCALL(recvfrom);
250 COND_SYSCALL_COMPAT(recvfrom);
251 COND_SYSCALL(sendmsg);
252 COND_SYSCALL_COMPAT(sendmsg);
253 COND_SYSCALL(recvmsg);
254 COND_SYSCALL_COMPAT(recvmsg);
255 
256 /* mm/filemap.c */
257 
258 /* mm/nommu.c, also with MMU */
259 COND_SYSCALL(mremap);
260 
261 /* security/keys/keyctl.c */
262 COND_SYSCALL(add_key);
263 COND_SYSCALL(request_key);
264 COND_SYSCALL(keyctl);
265 COND_SYSCALL_COMPAT(keyctl);
266 
267 /* arch/example/kernel/sys_example.c */
268 
269 /* mm/fadvise.c */
270 COND_SYSCALL(fadvise64_64);
271 
272 /* mm/, CONFIG_MMU only */
273 COND_SYSCALL(swapon);
274 COND_SYSCALL(swapoff);
275 COND_SYSCALL(mprotect);
276 COND_SYSCALL(msync);
277 COND_SYSCALL(mlock);
278 COND_SYSCALL(munlock);
279 COND_SYSCALL(mlockall);
280 COND_SYSCALL(munlockall);
281 COND_SYSCALL(mincore);
282 COND_SYSCALL(madvise);
283 COND_SYSCALL(remap_file_pages);
284 COND_SYSCALL(mbind);
285 COND_SYSCALL_COMPAT(mbind);
286 COND_SYSCALL(get_mempolicy);
287 COND_SYSCALL_COMPAT(get_mempolicy);
288 COND_SYSCALL(set_mempolicy);
289 COND_SYSCALL_COMPAT(set_mempolicy);
290 COND_SYSCALL(migrate_pages);
291 COND_SYSCALL_COMPAT(migrate_pages);
292 COND_SYSCALL(move_pages);
293 COND_SYSCALL_COMPAT(move_pages);
294 
295 COND_SYSCALL(perf_event_open);
296 COND_SYSCALL(accept4);
297 COND_SYSCALL(recvmmsg);
298 COND_SYSCALL(recvmmsg_time32);
299 COND_SYSCALL_COMPAT(recvmmsg_time32);
300 COND_SYSCALL_COMPAT(recvmmsg_time64);
301 
302 /*
303  * Architecture specific syscalls: see further below
304  */
305 
306 /* fanotify */
307 COND_SYSCALL(fanotify_init);
308 COND_SYSCALL(fanotify_mark);
309 
310 /* open by handle */
311 COND_SYSCALL(name_to_handle_at);
312 COND_SYSCALL(open_by_handle_at);
313 COND_SYSCALL_COMPAT(open_by_handle_at);
314 
315 COND_SYSCALL(sendmmsg);
316 COND_SYSCALL_COMPAT(sendmmsg);
317 COND_SYSCALL(process_vm_readv);
318 COND_SYSCALL_COMPAT(process_vm_readv);
319 COND_SYSCALL(process_vm_writev);
320 COND_SYSCALL_COMPAT(process_vm_writev);
321 
322 /* compare kernel pointers */
323 COND_SYSCALL(kcmp);
324 
325 COND_SYSCALL(finit_module);
326 
327 /* operate on Secure Computing state */
328 COND_SYSCALL(seccomp);
329 
330 COND_SYSCALL(memfd_create);
331 
332 /* access BPF programs and maps */
333 COND_SYSCALL(bpf);
334 
335 /* execveat */
336 COND_SYSCALL(execveat);
337 
338 COND_SYSCALL(userfaultfd);
339 
340 /* membarrier */
341 COND_SYSCALL(membarrier);
342 
343 COND_SYSCALL(mlock2);
344 
345 COND_SYSCALL(copy_file_range);
346 
347 /* memory protection keys */
348 COND_SYSCALL(pkey_mprotect);
349 COND_SYSCALL(pkey_alloc);
350 COND_SYSCALL(pkey_free);
351 
352 
353 /*
354  * Architecture specific weak syscall entries.
355  */
356 
357 /* pciconfig: alpha, arm, arm64, ia64, sparc */
358 COND_SYSCALL(pciconfig_read);
359 COND_SYSCALL(pciconfig_write);
360 COND_SYSCALL(pciconfig_iobase);
361 
362 /* sys_socketcall: arm, mips, x86, ... */
363 COND_SYSCALL(socketcall);
364 COND_SYSCALL_COMPAT(socketcall);
365 
366 /* compat syscalls for arm64, x86, ... */
367 COND_SYSCALL_COMPAT(sysctl);
368 COND_SYSCALL_COMPAT(fanotify_mark);
369 
370 /* x86 */
371 COND_SYSCALL(vm86old);
372 COND_SYSCALL(modify_ldt);
373 COND_SYSCALL_COMPAT(quotactl32);
374 COND_SYSCALL(vm86);
375 COND_SYSCALL(kexec_file_load);
376 
377 /* s390 */
378 COND_SYSCALL(s390_pci_mmio_read);
379 COND_SYSCALL(s390_pci_mmio_write);
380 COND_SYSCALL(s390_ipc);
381 COND_SYSCALL_COMPAT(s390_ipc);
382 
383 /* powerpc */
384 COND_SYSCALL(rtas);
385 COND_SYSCALL(spu_run);
386 COND_SYSCALL(spu_create);
387 COND_SYSCALL(subpage_prot);
388 
389 
390 /*
391  * Deprecated system calls which are still defined in
392  * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch
393  */
394 
395 /* __ARCH_WANT_SYSCALL_NO_FLAGS */
396 COND_SYSCALL(epoll_create);
397 COND_SYSCALL(inotify_init);
398 COND_SYSCALL(eventfd);
399 COND_SYSCALL(signalfd);
400 COND_SYSCALL_COMPAT(signalfd);
401 
402 /* __ARCH_WANT_SYSCALL_OFF_T */
403 COND_SYSCALL(fadvise64);
404 
405 /* __ARCH_WANT_SYSCALL_DEPRECATED */
406 COND_SYSCALL(epoll_wait);
407 COND_SYSCALL(recv);
408 COND_SYSCALL_COMPAT(recv);
409 COND_SYSCALL(send);
410 COND_SYSCALL(bdflush);
411 COND_SYSCALL(uselib);
412 
413 
414 /*
415  * The syscalls below are not found in include/uapi/asm-generic/unistd.h
416  */
417 
418 /* obsolete: SGETMASK_SYSCALL */
419 COND_SYSCALL(sgetmask);
420 COND_SYSCALL(ssetmask);
421 
422 /* obsolete: SYSFS_SYSCALL */
423 COND_SYSCALL(sysfs);
424 
425 /* obsolete: __ARCH_WANT_SYS_IPC */
426 COND_SYSCALL(ipc);
427 COND_SYSCALL_COMPAT(ipc);
428 
429 /* obsolete: UID16 */
430 COND_SYSCALL(chown16);
431 COND_SYSCALL(fchown16);
432 COND_SYSCALL(getegid16);
433 COND_SYSCALL(geteuid16);
434 COND_SYSCALL(getgid16);
435 COND_SYSCALL(getgroups16);
436 COND_SYSCALL(getresgid16);
437 COND_SYSCALL(getresuid16);
438 COND_SYSCALL(getuid16);
439 COND_SYSCALL(lchown16);
440 COND_SYSCALL(setfsgid16);
441 COND_SYSCALL(setfsuid16);
442 COND_SYSCALL(setgid16);
443 COND_SYSCALL(setgroups16);
444 COND_SYSCALL(setregid16);
445 COND_SYSCALL(setresgid16);
446 COND_SYSCALL(setresuid16);
447 COND_SYSCALL(setreuid16);
448 COND_SYSCALL(setuid16);
449 
450 /* restartable sequence */
451 COND_SYSCALL(rseq);
452