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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 | */ | |
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); | |
46 | COND_SYSCALL(io_pgetevents); | |
47 | COND_SYSCALL_COMPAT(io_getevents); | |
48 | COND_SYSCALL_COMPAT(io_pgetevents); | |
49 | ||
50 | /* fs/xattr.c */ | |
51 | ||
52 | /* fs/dcache.c */ | |
53 | ||
54 | /* fs/cookies.c */ | |
55 | COND_SYSCALL(lookup_dcookie); | |
56 | COND_SYSCALL_COMPAT(lookup_dcookie); | |
57 | ||
58 | /* fs/eventfd.c */ | |
59 | COND_SYSCALL(eventfd2); | |
60 | ||
61 | /* fs/eventfd.c */ | |
62 | COND_SYSCALL(epoll_create1); | |
63 | COND_SYSCALL(epoll_ctl); | |
64 | COND_SYSCALL(epoll_pwait); | |
65 | COND_SYSCALL_COMPAT(epoll_pwait); | |
66 | ||
67 | /* fs/fcntl.c */ | |
68 | ||
69 | /* fs/inotify_user.c */ | |
70 | COND_SYSCALL(inotify_init1); | |
71 | COND_SYSCALL(inotify_add_watch); | |
72 | COND_SYSCALL(inotify_rm_watch); | |
73 | ||
74 | /* fs/ioctl.c */ | |
75 | ||
76 | /* fs/ioprio.c */ | |
77 | COND_SYSCALL(ioprio_set); | |
78 | COND_SYSCALL(ioprio_get); | |
79 | ||
80 | /* fs/locks.c */ | |
81 | COND_SYSCALL(flock); | |
82 | ||
83 | /* fs/namei.c */ | |
84 | ||
85 | /* fs/namespace.c */ | |
86 | ||
87 | /* fs/nfsctl.c */ | |
88 | ||
89 | /* fs/open.c */ | |
90 | ||
91 | /* fs/pipe.c */ | |
92 | ||
93 | /* fs/quota.c */ | |
94 | COND_SYSCALL(quotactl); | |
95 | ||
96 | /* fs/readdir.c */ | |
97 | ||
98 | /* fs/read_write.c */ | |
99 | ||
100 | /* fs/sendfile.c */ | |
101 | ||
102 | /* fs/select.c */ | |
103 | ||
104 | /* fs/signalfd.c */ | |
105 | COND_SYSCALL(signalfd4); | |
106 | COND_SYSCALL_COMPAT(signalfd4); | |
107 | ||
108 | /* fs/splice.c */ | |
109 | ||
110 | /* fs/stat.c */ | |
111 | ||
112 | /* fs/sync.c */ | |
113 | ||
114 | /* fs/timerfd.c */ | |
115 | COND_SYSCALL(timerfd_create); | |
116 | COND_SYSCALL(timerfd_settime); | |
117 | COND_SYSCALL_COMPAT(timerfd_settime); | |
118 | COND_SYSCALL(timerfd_gettime); | |
119 | COND_SYSCALL_COMPAT(timerfd_gettime); | |
120 | ||
121 | /* fs/utimes.c */ | |
122 | ||
123 | /* kernel/acct.c */ | |
124 | COND_SYSCALL(acct); | |
125 | ||
126 | /* kernel/capability.c */ | |
127 | COND_SYSCALL(capget); | |
128 | COND_SYSCALL(capset); | |
129 | ||
130 | /* kernel/exec_domain.c */ | |
131 | ||
132 | /* kernel/exit.c */ | |
133 | ||
134 | /* kernel/fork.c */ | |
135 | ||
136 | /* kernel/futex.c */ | |
137 | COND_SYSCALL(futex); | |
138 | COND_SYSCALL_COMPAT(futex); | |
139 | COND_SYSCALL(set_robust_list); | |
140 | COND_SYSCALL_COMPAT(set_robust_list); | |
141 | COND_SYSCALL(get_robust_list); | |
142 | COND_SYSCALL_COMPAT(get_robust_list); | |
143 | ||
144 | /* kernel/hrtimer.c */ | |
145 | ||
146 | /* kernel/itimer.c */ | |
147 | ||
148 | /* kernel/kexec.c */ | |
149 | COND_SYSCALL(kexec_load); | |
150 | COND_SYSCALL_COMPAT(kexec_load); | |
151 | ||
152 | /* kernel/module.c */ | |
153 | COND_SYSCALL(init_module); | |
154 | COND_SYSCALL(delete_module); | |
155 | ||
156 | /* kernel/posix-timers.c */ | |
157 | ||
158 | /* kernel/printk.c */ | |
159 | COND_SYSCALL(syslog); | |
160 | ||
161 | /* kernel/ptrace.c */ | |
162 | ||
163 | /* kernel/sched/core.c */ | |
164 | ||
165 | /* kernel/signal.c */ | |
166 | ||
167 | /* kernel/sys.c */ | |
168 | COND_SYSCALL(setregid); | |
169 | COND_SYSCALL(setgid); | |
170 | COND_SYSCALL(setreuid); | |
171 | COND_SYSCALL(setuid); | |
172 | COND_SYSCALL(setresuid); | |
173 | COND_SYSCALL(getresuid); | |
174 | COND_SYSCALL(setresgid); | |
175 | COND_SYSCALL(getresgid); | |
176 | COND_SYSCALL(setfsuid); | |
177 | COND_SYSCALL(setfsgid); | |
178 | COND_SYSCALL(setgroups); | |
179 | COND_SYSCALL(getgroups); | |
180 | ||
181 | /* kernel/time.c */ | |
182 | ||
183 | /* kernel/timer.c */ | |
184 | ||
185 | /* ipc/mqueue.c */ | |
186 | COND_SYSCALL(mq_open); | |
187 | COND_SYSCALL_COMPAT(mq_open); | |
188 | COND_SYSCALL(mq_unlink); | |
189 | COND_SYSCALL(mq_timedsend); | |
190 | COND_SYSCALL_COMPAT(mq_timedsend); | |
191 | COND_SYSCALL(mq_timedreceive); | |
192 | COND_SYSCALL_COMPAT(mq_timedreceive); | |
193 | COND_SYSCALL(mq_notify); | |
194 | COND_SYSCALL_COMPAT(mq_notify); | |
195 | COND_SYSCALL(mq_getsetattr); | |
196 | COND_SYSCALL_COMPAT(mq_getsetattr); | |
197 | ||
198 | /* ipc/msg.c */ | |
199 | COND_SYSCALL(msgget); | |
200 | COND_SYSCALL(msgctl); | |
201 | COND_SYSCALL_COMPAT(msgctl); | |
202 | COND_SYSCALL(msgrcv); | |
203 | COND_SYSCALL_COMPAT(msgrcv); | |
204 | COND_SYSCALL(msgsnd); | |
205 | COND_SYSCALL_COMPAT(msgsnd); | |
206 | ||
207 | /* ipc/sem.c */ | |
208 | COND_SYSCALL(semget); | |
209 | COND_SYSCALL(semctl); | |
210 | COND_SYSCALL_COMPAT(semctl); | |
211 | COND_SYSCALL(semtimedop); | |
212 | COND_SYSCALL_COMPAT(semtimedop); | |
213 | COND_SYSCALL(semop); | |
214 | ||
215 | /* ipc/shm.c */ | |
216 | COND_SYSCALL(shmget); | |
217 | COND_SYSCALL(shmctl); | |
218 | COND_SYSCALL_COMPAT(shmctl); | |
219 | COND_SYSCALL(shmat); | |
220 | COND_SYSCALL_COMPAT(shmat); | |
221 | COND_SYSCALL(shmdt); | |
222 | ||
223 | /* net/socket.c */ | |
224 | COND_SYSCALL(socket); | |
225 | COND_SYSCALL(socketpair); | |
226 | COND_SYSCALL(bind); | |
227 | COND_SYSCALL(listen); | |
228 | COND_SYSCALL(accept); | |
229 | COND_SYSCALL(connect); | |
230 | COND_SYSCALL(getsockname); | |
231 | COND_SYSCALL(getpeername); | |
232 | COND_SYSCALL(setsockopt); | |
233 | COND_SYSCALL_COMPAT(setsockopt); | |
234 | COND_SYSCALL(getsockopt); | |
235 | COND_SYSCALL_COMPAT(getsockopt); | |
236 | COND_SYSCALL(sendto); | |
237 | COND_SYSCALL(shutdown); | |
238 | COND_SYSCALL(recvfrom); | |
239 | COND_SYSCALL_COMPAT(recvfrom); | |
240 | COND_SYSCALL(sendmsg); | |
241 | COND_SYSCALL_COMPAT(sendmsg); | |
242 | COND_SYSCALL(recvmsg); | |
243 | COND_SYSCALL_COMPAT(recvmsg); | |
244 | ||
245 | /* mm/filemap.c */ | |
246 | ||
247 | /* mm/nommu.c, also with MMU */ | |
248 | COND_SYSCALL(mremap); | |
249 | ||
250 | /* security/keys/keyctl.c */ | |
251 | COND_SYSCALL(add_key); | |
252 | COND_SYSCALL(request_key); | |
253 | COND_SYSCALL(keyctl); | |
254 | COND_SYSCALL_COMPAT(keyctl); | |
255 | ||
256 | /* arch/example/kernel/sys_example.c */ | |
257 | ||
258 | /* mm/fadvise.c */ | |
259 | COND_SYSCALL(fadvise64_64); | |
260 | ||
261 | /* mm/, CONFIG_MMU only */ | |
262 | COND_SYSCALL(swapon); | |
263 | COND_SYSCALL(swapoff); | |
264 | COND_SYSCALL(mprotect); | |
265 | COND_SYSCALL(msync); | |
266 | COND_SYSCALL(mlock); | |
267 | COND_SYSCALL(munlock); | |
268 | COND_SYSCALL(mlockall); | |
269 | COND_SYSCALL(munlockall); | |
270 | COND_SYSCALL(mincore); | |
271 | COND_SYSCALL(madvise); | |
272 | COND_SYSCALL(remap_file_pages); | |
273 | COND_SYSCALL(mbind); | |
274 | COND_SYSCALL_COMPAT(mbind); | |
275 | COND_SYSCALL(get_mempolicy); | |
276 | COND_SYSCALL_COMPAT(get_mempolicy); | |
277 | COND_SYSCALL(set_mempolicy); | |
278 | COND_SYSCALL_COMPAT(set_mempolicy); | |
279 | COND_SYSCALL(migrate_pages); | |
280 | COND_SYSCALL_COMPAT(migrate_pages); | |
281 | COND_SYSCALL(move_pages); | |
282 | COND_SYSCALL_COMPAT(move_pages); | |
283 | ||
284 | COND_SYSCALL(perf_event_open); | |
285 | COND_SYSCALL(accept4); | |
286 | COND_SYSCALL(recvmmsg); | |
287 | COND_SYSCALL_COMPAT(recvmmsg); | |
288 | ||
289 | /* | |
290 | * Architecture specific syscalls: see further below | |
291 | */ | |
292 | ||
293 | /* fanotify */ | |
294 | COND_SYSCALL(fanotify_init); | |
295 | COND_SYSCALL(fanotify_mark); | |
296 | ||
297 | /* open by handle */ | |
298 | COND_SYSCALL(name_to_handle_at); | |
299 | COND_SYSCALL(open_by_handle_at); | |
300 | COND_SYSCALL_COMPAT(open_by_handle_at); | |
301 | ||
302 | COND_SYSCALL(sendmmsg); | |
303 | COND_SYSCALL_COMPAT(sendmmsg); | |
304 | COND_SYSCALL(process_vm_readv); | |
305 | COND_SYSCALL_COMPAT(process_vm_readv); | |
306 | COND_SYSCALL(process_vm_writev); | |
307 | COND_SYSCALL_COMPAT(process_vm_writev); | |
308 | ||
309 | /* compare kernel pointers */ | |
310 | COND_SYSCALL(kcmp); | |
311 | ||
312 | COND_SYSCALL(finit_module); | |
313 | ||
314 | /* operate on Secure Computing state */ | |
315 | COND_SYSCALL(seccomp); | |
316 | ||
317 | COND_SYSCALL(memfd_create); | |
318 | ||
319 | /* access BPF programs and maps */ | |
320 | COND_SYSCALL(bpf); | |
321 | ||
322 | /* execveat */ | |
323 | COND_SYSCALL(execveat); | |
324 | ||
325 | COND_SYSCALL(userfaultfd); | |
326 | ||
327 | /* membarrier */ | |
328 | COND_SYSCALL(membarrier); | |
329 | ||
330 | COND_SYSCALL(mlock2); | |
331 | ||
332 | COND_SYSCALL(copy_file_range); | |
333 | ||
334 | /* memory protection keys */ | |
335 | COND_SYSCALL(pkey_mprotect); | |
336 | COND_SYSCALL(pkey_alloc); | |
337 | COND_SYSCALL(pkey_free); | |
338 | ||
339 | ||
340 | /* | |
341 | * Architecture specific weak syscall entries. | |
342 | */ | |
343 | ||
344 | /* pciconfig: alpha, arm, arm64, ia64, sparc */ | |
345 | COND_SYSCALL(pciconfig_read); | |
346 | COND_SYSCALL(pciconfig_write); | |
347 | COND_SYSCALL(pciconfig_iobase); | |
348 | ||
349 | /* sys_socketcall: arm, mips, x86, ... */ | |
350 | COND_SYSCALL(socketcall); | |
351 | COND_SYSCALL_COMPAT(socketcall); | |
352 | ||
353 | /* compat syscalls for arm64, x86, ... */ | |
354 | COND_SYSCALL_COMPAT(sysctl); | |
355 | COND_SYSCALL_COMPAT(fanotify_mark); | |
356 | ||
357 | /* x86 */ | |
358 | COND_SYSCALL(vm86old); | |
359 | COND_SYSCALL(modify_ldt); | |
360 | COND_SYSCALL_COMPAT(quotactl32); | |
361 | COND_SYSCALL(vm86); | |
362 | COND_SYSCALL(kexec_file_load); | |
363 | ||
364 | /* s390 */ | |
365 | COND_SYSCALL(s390_pci_mmio_read); | |
366 | COND_SYSCALL(s390_pci_mmio_write); | |
367 | COND_SYSCALL_COMPAT(s390_ipc); | |
368 | ||
369 | /* powerpc */ | |
370 | COND_SYSCALL(rtas); | |
371 | COND_SYSCALL(spu_run); | |
372 | COND_SYSCALL(spu_create); | |
373 | COND_SYSCALL(subpage_prot); | |
374 | ||
375 | ||
376 | /* | |
377 | * Deprecated system calls which are still defined in | |
378 | * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch | |
379 | */ | |
380 | ||
381 | /* __ARCH_WANT_SYSCALL_NO_FLAGS */ | |
382 | COND_SYSCALL(epoll_create); | |
383 | COND_SYSCALL(inotify_init); | |
384 | COND_SYSCALL(eventfd); | |
385 | COND_SYSCALL(signalfd); | |
386 | COND_SYSCALL_COMPAT(signalfd); | |
387 | ||
388 | /* __ARCH_WANT_SYSCALL_OFF_T */ | |
389 | COND_SYSCALL(fadvise64); | |
390 | ||
391 | /* __ARCH_WANT_SYSCALL_DEPRECATED */ | |
392 | COND_SYSCALL(epoll_wait); | |
393 | COND_SYSCALL(recv); | |
394 | COND_SYSCALL_COMPAT(recv); | |
395 | COND_SYSCALL(send); | |
396 | COND_SYSCALL(bdflush); | |
397 | COND_SYSCALL(uselib); | |
398 | ||
399 | ||
400 | /* | |
401 | * The syscalls below are not found in include/uapi/asm-generic/unistd.h | |
402 | */ | |
403 | ||
404 | /* obsolete: SGETMASK_SYSCALL */ | |
405 | COND_SYSCALL(sgetmask); | |
406 | COND_SYSCALL(ssetmask); | |
407 | ||
408 | /* obsolete: SYSFS_SYSCALL */ | |
409 | COND_SYSCALL(sysfs); | |
410 | ||
411 | /* obsolete: __ARCH_WANT_SYS_IPC */ | |
412 | COND_SYSCALL(ipc); | |
413 | COND_SYSCALL_COMPAT(ipc); | |
414 | ||
415 | /* obsolete: UID16 */ | |
416 | COND_SYSCALL(chown16); | |
417 | COND_SYSCALL(fchown16); | |
418 | COND_SYSCALL(getegid16); | |
419 | COND_SYSCALL(geteuid16); | |
420 | COND_SYSCALL(getgid16); | |
421 | COND_SYSCALL(getgroups16); | |
422 | COND_SYSCALL(getresgid16); | |
423 | COND_SYSCALL(getresuid16); | |
424 | COND_SYSCALL(getuid16); | |
425 | COND_SYSCALL(lchown16); | |
426 | COND_SYSCALL(setfsgid16); | |
427 | COND_SYSCALL(setfsuid16); | |
428 | COND_SYSCALL(setgid16); | |
429 | COND_SYSCALL(setgroups16); | |
430 | COND_SYSCALL(setregid16); | |
431 | COND_SYSCALL(setresgid16); | |
432 | COND_SYSCALL(setresuid16); | |
433 | COND_SYSCALL(setreuid16); | |
434 | COND_SYSCALL(setuid16); | |
435 | ||
436 | /* restartable sequence */ | |
437 | COND_SYSCALL(rseq); |