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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
2f368e4a ZJS |
2 | #pragma once |
3 | ||
4 | /*** | |
5 | This file is part of systemd. | |
6 | ||
7 | Copyright 2010 Lennart Poettering | |
8 | Copyright 2016 Zbigniew Jędrzejewski-Szmek | |
9 | ||
10 | systemd is free software; you can redistribute it and/or modify it | |
11 | under the terms of the GNU Lesser General Public License as published by | |
12 | the Free Software Foundation; either version 2.1 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | systemd is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | Lesser General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU Lesser General Public License | |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
22 | ***/ | |
23 | ||
24 | /* Missing glibc definitions to access certain kernel APIs */ | |
25 | ||
71e5200f DM |
26 | #include <sys/types.h> |
27 | ||
4b9545f1 | 28 | #if !HAVE_PIVOT_ROOT |
5187dd2c | 29 | static inline int missing_pivot_root(const char *new_root, const char *put_old) { |
d06f3829 | 30 | return syscall(__NR_pivot_root, new_root, put_old); |
2f368e4a | 31 | } |
5187dd2c ZJS |
32 | |
33 | # define pivot_root missing_pivot_root | |
2f368e4a ZJS |
34 | #endif |
35 | ||
36 | /* ======================================================================= */ | |
37 | ||
4b9545f1 | 38 | #if !HAVE_MEMFD_CREATE |
2f368e4a ZJS |
39 | # ifndef __NR_memfd_create |
40 | # if defined __x86_64__ | |
41 | # define __NR_memfd_create 319 | |
42 | # elif defined __arm__ | |
43 | # define __NR_memfd_create 385 | |
44 | # elif defined __aarch64__ | |
45 | # define __NR_memfd_create 279 | |
46 | # elif defined __s390__ | |
47 | # define __NR_memfd_create 350 | |
48 | # elif defined _MIPS_SIM | |
49 | # if _MIPS_SIM == _MIPS_SIM_ABI32 | |
50 | # define __NR_memfd_create 4354 | |
51 | # endif | |
52 | # if _MIPS_SIM == _MIPS_SIM_NABI32 | |
53 | # define __NR_memfd_create 6318 | |
54 | # endif | |
55 | # if _MIPS_SIM == _MIPS_SIM_ABI64 | |
56 | # define __NR_memfd_create 5314 | |
57 | # endif | |
58 | # elif defined __i386__ | |
59 | # define __NR_memfd_create 356 | |
27b09f1f AB |
60 | # elif defined __arc__ |
61 | # define __NR_memfd_create 279 | |
2f368e4a ZJS |
62 | # else |
63 | # warning "__NR_memfd_create unknown for your architecture" | |
64 | # endif | |
65 | # endif | |
66 | ||
5187dd2c | 67 | static inline int missing_memfd_create(const char *name, unsigned int flags) { |
2f368e4a ZJS |
68 | # ifdef __NR_memfd_create |
69 | return syscall(__NR_memfd_create, name, flags); | |
70 | # else | |
71 | errno = ENOSYS; | |
72 | return -1; | |
73 | # endif | |
74 | } | |
5187dd2c ZJS |
75 | |
76 | # define memfd_create missing_memfd_create | |
2f368e4a ZJS |
77 | #endif |
78 | ||
79 | /* ======================================================================= */ | |
80 | ||
4b9545f1 | 81 | #if !HAVE_GETRANDOM |
2f368e4a ZJS |
82 | # ifndef __NR_getrandom |
83 | # if defined __x86_64__ | |
84 | # define __NR_getrandom 318 | |
85 | # elif defined(__i386__) | |
86 | # define __NR_getrandom 355 | |
87 | # elif defined(__arm__) | |
88 | # define __NR_getrandom 384 | |
89 | # elif defined(__aarch64__) | |
90 | # define __NR_getrandom 278 | |
91 | # elif defined(__ia64__) | |
92 | # define __NR_getrandom 1339 | |
93 | # elif defined(__m68k__) | |
94 | # define __NR_getrandom 352 | |
95 | # elif defined(__s390x__) | |
96 | # define __NR_getrandom 349 | |
97 | # elif defined(__powerpc__) | |
98 | # define __NR_getrandom 359 | |
99 | # elif defined _MIPS_SIM | |
100 | # if _MIPS_SIM == _MIPS_SIM_ABI32 | |
101 | # define __NR_getrandom 4353 | |
102 | # endif | |
103 | # if _MIPS_SIM == _MIPS_SIM_NABI32 | |
104 | # define __NR_getrandom 6317 | |
105 | # endif | |
106 | # if _MIPS_SIM == _MIPS_SIM_ABI64 | |
107 | # define __NR_getrandom 5313 | |
108 | # endif | |
27b09f1f AB |
109 | # elif defined(__arc__) |
110 | # define __NR_getrandom 278 | |
2f368e4a ZJS |
111 | # else |
112 | # warning "__NR_getrandom unknown for your architecture" | |
113 | # endif | |
114 | # endif | |
115 | ||
5187dd2c | 116 | static inline int missing_getrandom(void *buffer, size_t count, unsigned flags) { |
2f368e4a ZJS |
117 | # ifdef __NR_getrandom |
118 | return syscall(__NR_getrandom, buffer, count, flags); | |
119 | # else | |
120 | errno = ENOSYS; | |
121 | return -1; | |
122 | # endif | |
123 | } | |
5187dd2c ZJS |
124 | |
125 | # define getrandom missing_getrandom | |
2f368e4a ZJS |
126 | #endif |
127 | ||
128 | /* ======================================================================= */ | |
129 | ||
4b9545f1 | 130 | #if !HAVE_GETTID |
5187dd2c | 131 | static inline pid_t missing_gettid(void) { |
d06f3829 | 132 | return (pid_t) syscall(__NR_gettid); |
2f368e4a | 133 | } |
5187dd2c ZJS |
134 | |
135 | # define gettid missing_gettid | |
2f368e4a ZJS |
136 | #endif |
137 | ||
138 | /* ======================================================================= */ | |
139 | ||
4b9545f1 | 140 | #if !HAVE_NAME_TO_HANDLE_AT |
2f368e4a ZJS |
141 | # ifndef __NR_name_to_handle_at |
142 | # if defined(__x86_64__) | |
143 | # define __NR_name_to_handle_at 303 | |
144 | # elif defined(__i386__) | |
145 | # define __NR_name_to_handle_at 341 | |
146 | # elif defined(__arm__) | |
147 | # define __NR_name_to_handle_at 370 | |
148 | # elif defined(__powerpc__) | |
149 | # define __NR_name_to_handle_at 345 | |
27b09f1f AB |
150 | # elif defined(__arc__) |
151 | # define __NR_name_to_handle_at 264 | |
2f368e4a ZJS |
152 | # else |
153 | # error "__NR_name_to_handle_at is not defined" | |
154 | # endif | |
155 | # endif | |
156 | ||
157 | struct file_handle { | |
158 | unsigned int handle_bytes; | |
159 | int handle_type; | |
160 | unsigned char f_handle[0]; | |
161 | }; | |
162 | ||
5187dd2c | 163 | static inline int missing_name_to_handle_at(int fd, const char *name, struct file_handle *handle, int *mnt_id, int flags) { |
2f368e4a ZJS |
164 | # ifdef __NR_name_to_handle_at |
165 | return syscall(__NR_name_to_handle_at, fd, name, handle, mnt_id, flags); | |
166 | # else | |
167 | errno = ENOSYS; | |
168 | return -1; | |
169 | # endif | |
170 | } | |
5187dd2c ZJS |
171 | |
172 | # define name_to_handle_at missing_name_to_handle_at | |
2f368e4a ZJS |
173 | #endif |
174 | ||
175 | /* ======================================================================= */ | |
176 | ||
4b9545f1 | 177 | #if !HAVE_SETNS |
2f368e4a ZJS |
178 | # ifndef __NR_setns |
179 | # if defined(__x86_64__) | |
180 | # define __NR_setns 308 | |
181 | # elif defined(__i386__) | |
182 | # define __NR_setns 346 | |
27b09f1f AB |
183 | # elif defined(__arc__) |
184 | # define __NR_setns 268 | |
2f368e4a ZJS |
185 | # else |
186 | # error "__NR_setns is not defined" | |
187 | # endif | |
188 | # endif | |
189 | ||
5187dd2c | 190 | static inline int missing_setns(int fd, int nstype) { |
2f368e4a ZJS |
191 | # ifdef __NR_setns |
192 | return syscall(__NR_setns, fd, nstype); | |
193 | # else | |
194 | errno = ENOSYS; | |
195 | return -1; | |
196 | # endif | |
197 | } | |
5187dd2c ZJS |
198 | |
199 | # define setns missing_setns | |
2f368e4a ZJS |
200 | #endif |
201 | ||
202 | /* ======================================================================= */ | |
203 | ||
2f368e4a ZJS |
204 | static inline pid_t raw_getpid(void) { |
205 | #if defined(__alpha__) | |
206 | return (pid_t) syscall(__NR_getxpid); | |
207 | #else | |
208 | return (pid_t) syscall(__NR_getpid); | |
209 | #endif | |
210 | } | |
211 | ||
212 | /* ======================================================================= */ | |
213 | ||
4b9545f1 | 214 | #if !HAVE_RENAMEAT2 |
2f368e4a ZJS |
215 | # ifndef __NR_renameat2 |
216 | # if defined __x86_64__ | |
217 | # define __NR_renameat2 316 | |
218 | # elif defined __arm__ | |
219 | # define __NR_renameat2 382 | |
925c81cd LP |
220 | # elif defined __aarch64__ |
221 | # define __NR_renameat2 276 | |
2f368e4a ZJS |
222 | # elif defined _MIPS_SIM |
223 | # if _MIPS_SIM == _MIPS_SIM_ABI32 | |
224 | # define __NR_renameat2 4351 | |
225 | # endif | |
226 | # if _MIPS_SIM == _MIPS_SIM_NABI32 | |
227 | # define __NR_renameat2 6315 | |
228 | # endif | |
229 | # if _MIPS_SIM == _MIPS_SIM_ABI64 | |
230 | # define __NR_renameat2 5311 | |
231 | # endif | |
232 | # elif defined __i386__ | |
233 | # define __NR_renameat2 353 | |
92369d5e ZJS |
234 | # elif defined __powerpc64__ |
235 | # define __NR_renameat2 357 | |
236 | # elif defined __s390__ || defined __s390x__ | |
237 | # define __NR_renameat2 347 | |
27b09f1f AB |
238 | # elif defined __arc__ |
239 | # define __NR_renameat2 276 | |
2f368e4a ZJS |
240 | # else |
241 | # warning "__NR_renameat2 unknown for your architecture" | |
242 | # endif | |
243 | # endif | |
244 | ||
5187dd2c | 245 | static inline int missing_renameat2(int oldfd, const char *oldname, int newfd, const char *newname, unsigned flags) { |
2f368e4a ZJS |
246 | # ifdef __NR_renameat2 |
247 | return syscall(__NR_renameat2, oldfd, oldname, newfd, newname, flags); | |
248 | # else | |
249 | errno = ENOSYS; | |
250 | return -1; | |
251 | # endif | |
252 | } | |
5187dd2c ZJS |
253 | |
254 | # define renameat2 missing_renameat2 | |
2f368e4a ZJS |
255 | #endif |
256 | ||
257 | /* ======================================================================= */ | |
258 | ||
4b9545f1 | 259 | #if !HAVE_KCMP |
5187dd2c | 260 | static inline int missing_kcmp(pid_t pid1, pid_t pid2, int type, unsigned long idx1, unsigned long idx2) { |
2f368e4a ZJS |
261 | # ifdef __NR_kcmp |
262 | return syscall(__NR_kcmp, pid1, pid2, type, idx1, idx2); | |
263 | # else | |
264 | errno = ENOSYS; | |
265 | return -1; | |
266 | # endif | |
267 | } | |
5187dd2c ZJS |
268 | |
269 | # define kcmp missing_kcmp | |
2f368e4a ZJS |
270 | #endif |
271 | ||
5187dd2c | 272 | |
2f368e4a ZJS |
273 | /* ======================================================================= */ |
274 | ||
4b9545f1 | 275 | #if !HAVE_KEYCTL |
5187dd2c | 276 | static inline long missing_keyctl(int cmd, unsigned long arg2, unsigned long arg3, unsigned long arg4,unsigned long arg5) { |
2f368e4a ZJS |
277 | # ifdef __NR_keyctl |
278 | return syscall(__NR_keyctl, cmd, arg2, arg3, arg4, arg5); | |
279 | # else | |
280 | errno = ENOSYS; | |
281 | return -1; | |
282 | # endif | |
5187dd2c ZJS |
283 | |
284 | # define keyctl missing_keyctl | |
2f368e4a ZJS |
285 | } |
286 | ||
5187dd2c | 287 | static inline key_serial_t missing_add_key(const char *type, const char *description, const void *payload, size_t plen, key_serial_t ringid) { |
2f368e4a ZJS |
288 | # ifdef __NR_add_key |
289 | return syscall(__NR_add_key, type, description, payload, plen, ringid); | |
290 | # else | |
291 | errno = ENOSYS; | |
292 | return -1; | |
293 | # endif | |
5187dd2c ZJS |
294 | |
295 | # define add_key missing_add_key | |
2f368e4a ZJS |
296 | } |
297 | ||
5187dd2c | 298 | static inline key_serial_t missing_request_key(const char *type, const char *description, const char * callout_info, key_serial_t destringid) { |
2f368e4a ZJS |
299 | # ifdef __NR_request_key |
300 | return syscall(__NR_request_key, type, description, callout_info, destringid); | |
301 | # else | |
302 | errno = ENOSYS; | |
303 | return -1; | |
304 | # endif | |
5187dd2c ZJS |
305 | |
306 | # define request_key missing_request_key | |
2f368e4a ZJS |
307 | } |
308 | #endif | |
309 | ||
310 | /* ======================================================================= */ | |
311 | ||
4b9545f1 | 312 | #if !HAVE_COPY_FILE_RANGE |
2f368e4a ZJS |
313 | # ifndef __NR_copy_file_range |
314 | # if defined(__x86_64__) | |
315 | # define __NR_copy_file_range 326 | |
316 | # elif defined(__i386__) | |
317 | # define __NR_copy_file_range 377 | |
318 | # elif defined __s390__ | |
319 | # define __NR_copy_file_range 375 | |
320 | # elif defined __arm__ | |
321 | # define __NR_copy_file_range 391 | |
322 | # elif defined __aarch64__ | |
323 | # define __NR_copy_file_range 285 | |
4d07c8d3 AIB |
324 | # elif defined __powerpc__ |
325 | # define __NR_copy_file_range 379 | |
27b09f1f AB |
326 | # elif defined __arc__ |
327 | # define __NR_copy_file_range 285 | |
2f368e4a ZJS |
328 | # else |
329 | # warning "__NR_copy_file_range not defined for your architecture" | |
330 | # endif | |
331 | # endif | |
332 | ||
5187dd2c ZJS |
333 | static inline ssize_t missing_copy_file_range(int fd_in, loff_t *off_in, |
334 | int fd_out, loff_t *off_out, | |
335 | size_t len, | |
336 | unsigned int flags) { | |
2f368e4a ZJS |
337 | # ifdef __NR_copy_file_range |
338 | return syscall(__NR_copy_file_range, fd_in, off_in, fd_out, off_out, len, flags); | |
339 | # else | |
340 | errno = ENOSYS; | |
341 | return -1; | |
342 | # endif | |
343 | } | |
5187dd2c ZJS |
344 | |
345 | # define copy_file_range missing_copy_file_range | |
2f368e4a | 346 | #endif |
71e5200f | 347 | |
213f2883 ZJS |
348 | /* ======================================================================= */ |
349 | ||
4b9545f1 | 350 | #if !HAVE_BPF |
71e5200f DM |
351 | # ifndef __NR_bpf |
352 | # if defined __i386__ | |
353 | # define __NR_bpf 357 | |
354 | # elif defined __x86_64__ | |
355 | # define __NR_bpf 321 | |
356 | # elif defined __aarch64__ | |
357 | # define __NR_bpf 280 | |
d07ba5d7 HCNE |
358 | # elif defined __arm__ |
359 | # define __NR_bpf 386 | |
71e5200f DM |
360 | # elif defined __sparc__ |
361 | # define __NR_bpf 349 | |
362 | # elif defined __s390__ | |
363 | # define __NR_bpf 351 | |
66ffb275 HCNE |
364 | # elif defined __tilegx__ |
365 | # define __NR_bpf 280 | |
71e5200f DM |
366 | # else |
367 | # warning "__NR_bpf not defined for your architecture" | |
368 | # endif | |
369 | # endif | |
370 | ||
371 | union bpf_attr; | |
372 | ||
5187dd2c | 373 | static inline int missing_bpf(int cmd, union bpf_attr *attr, size_t size) { |
71e5200f DM |
374 | #ifdef __NR_bpf |
375 | return (int) syscall(__NR_bpf, cmd, attr, size); | |
376 | #else | |
377 | errno = ENOSYS; | |
378 | return -1; | |
379 | #endif | |
380 | } | |
381 | ||
5187dd2c | 382 | # define bpf missing_bpf |
71e5200f | 383 | #endif |
213f2883 ZJS |
384 | |
385 | /* ======================================================================= */ | |
386 | ||
387 | #ifndef __IGNORE_pkey_mprotect | |
388 | # ifndef __NR_pkey_mprotect | |
389 | # if defined __i386__ | |
390 | # define __NR_pkey_mprotect 380 | |
391 | # elif defined __x86_64__ | |
392 | # define __NR_pkey_mprotect 329 | |
393 | # elif defined __arm__ | |
394 | # define __NR_pkey_mprotect 394 | |
395 | # elif defined __aarch64__ | |
396 | # define __NR_pkey_mprotect 394 | |
033c8366 ZJS |
397 | # elif defined __powerpc__ |
398 | # define __NR_pkey_mprotect 386 | |
213f2883 ZJS |
399 | # elif defined _MIPS_SIM |
400 | # if _MIPS_SIM == _MIPS_SIM_ABI32 | |
401 | # define __NR_pkey_mprotect 4363 | |
402 | # endif | |
403 | # if _MIPS_SIM == _MIPS_SIM_NABI32 | |
404 | # define __NR_pkey_mprotect 6327 | |
405 | # endif | |
406 | # if _MIPS_SIM == _MIPS_SIM_ABI64 | |
407 | # define __NR_pkey_mprotect 5323 | |
408 | # endif | |
9c6888ac | 409 | # else |
213f2883 ZJS |
410 | # warning "__NR_pkey_mprotect not defined for your architecture" |
411 | # endif | |
412 | # endif | |
413 | #endif | |
4c2e1b39 | 414 | |
5187dd2c ZJS |
415 | /* ======================================================================= */ |
416 | ||
4c2e1b39 LP |
417 | #if !HAVE_STATX |
418 | # ifndef __NR_statx | |
419 | # if defined __i386__ | |
fd91e3ef | 420 | # define __NR_statx 383 |
4c2e1b39 | 421 | # elif defined __x86_64__ |
fd91e3ef | 422 | # define __NR_statx 332 |
4c2e1b39 LP |
423 | # else |
424 | # warning "__NR_statx not defined for your architecture" | |
425 | # endif | |
426 | # endif | |
427 | ||
428 | struct statx; | |
5187dd2c ZJS |
429 | #endif |
430 | ||
431 | /* This typedef is supposed to be always defined. */ | |
432 | typedef struct statx struct_statx; | |
4c2e1b39 | 433 | |
5187dd2c ZJS |
434 | #if !HAVE_STATX |
435 | static inline ssize_t missing_statx(int dfd, const char *filename, unsigned flags, unsigned int mask, struct statx *buffer) { | |
4c2e1b39 LP |
436 | # ifdef __NR_statx |
437 | return syscall(__NR_statx, dfd, filename, flags, mask, buffer); | |
438 | # else | |
439 | errno = ENOSYS; | |
440 | return -1; | |
441 | # endif | |
442 | } | |
5187dd2c ZJS |
443 | |
444 | # define statx missing_statx | |
4c2e1b39 | 445 | #endif |