1 /**
2  * \file check_config.h
3  *
4  * \brief Consistency checks for configuration options
5  */
6 /*
7  *  Copyright The Mbed TLS Contributors
8  *  SPDX-License-Identifier: Apache-2.0
9  *
10  *  Licensed under the Apache License, Version 2.0 (the "License"); you may
11  *  not use this file except in compliance with the License.
12  *  You may obtain a copy of the License at
13  *
14  *  http://www.apache.org/licenses/LICENSE-2.0
15  *
16  *  Unless required by applicable law or agreed to in writing, software
17  *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
18  *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19  *  See the License for the specific language governing permissions and
20  *  limitations under the License.
21  */
22 
23 /*
24  * It is recommended to include this file from your config.h
25  * in order to catch dependency issues early.
26  */
27 
28 #ifndef MBEDTLS_CHECK_CONFIG_H
29 #define MBEDTLS_CHECK_CONFIG_H
30 
31 /*
32  * We assume CHAR_BIT is 8 in many places. In practice, this is true on our
33  * target platforms, so not an issue, but let's just be extra sure.
34  */
35 #include <limits.h>
36 #if CHAR_BIT != 8
37 #error "mbed TLS requires a platform with 8-bit chars"
38 #endif
39 
40 #if defined(_WIN32)
41 #if !defined(MBEDTLS_PLATFORM_C)
42 #error "MBEDTLS_PLATFORM_C is required on Windows"
43 #endif
44 
45 /* Fix the config here. Not convenient to put an #ifdef _WIN32 in config.h as
46  * it would confuse config.py. */
47 #if !defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) && \
48     !defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO)
49 #define MBEDTLS_PLATFORM_SNPRINTF_ALT
50 #endif
51 
52 #if !defined(MBEDTLS_PLATFORM_VSNPRINTF_ALT) && \
53     !defined(MBEDTLS_PLATFORM_VSNPRINTF_MACRO)
54 #define MBEDTLS_PLATFORM_VSNPRINTF_ALT
55 #endif
56 #endif /* _WIN32 */
57 
58 #if defined(TARGET_LIKE_MBED) && defined(MBEDTLS_NET_C)
59 #error "The NET module is not available for mbed OS - please use the network functions provided by Mbed OS"
60 #endif
61 
62 #if defined(MBEDTLS_DEPRECATED_WARNING) && \
63     !defined(__GNUC__) && !defined(__clang__)
64 #error "MBEDTLS_DEPRECATED_WARNING only works with GCC and Clang"
65 #endif
66 
67 #if defined(MBEDTLS_HAVE_TIME_DATE) && !defined(MBEDTLS_HAVE_TIME)
68 #error "MBEDTLS_HAVE_TIME_DATE without MBEDTLS_HAVE_TIME does not make sense"
69 #endif
70 
71 #if defined(MBEDTLS_AESNI_C) && !defined(MBEDTLS_HAVE_ASM)
72 #error "MBEDTLS_AESNI_C defined, but not all prerequisites"
73 #endif
74 
75 #if defined(MBEDTLS_CTR_DRBG_C) && !defined(MBEDTLS_AES_C)
76 #error "MBEDTLS_CTR_DRBG_C defined, but not all prerequisites"
77 #endif
78 
79 #if defined(MBEDTLS_DHM_C) && !defined(MBEDTLS_BIGNUM_C)
80 #error "MBEDTLS_DHM_C defined, but not all prerequisites"
81 #endif
82 
83 #if defined(MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT) && !defined(MBEDTLS_SSL_TRUNCATED_HMAC)
84 #error "MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT defined, but not all prerequisites"
85 #endif
86 
87 #if defined(MBEDTLS_CMAC_C) && \
88     !defined(MBEDTLS_AES_C) && !defined(MBEDTLS_DES_C)
89 #error "MBEDTLS_CMAC_C defined, but not all prerequisites"
90 #endif
91 
92 #if defined(MBEDTLS_NIST_KW_C) && \
93     ( !defined(MBEDTLS_AES_C) || !defined(MBEDTLS_CIPHER_C) )
94 #error "MBEDTLS_NIST_KW_C defined, but not all prerequisites"
95 #endif
96 
97 #if defined(MBEDTLS_ECDH_C) && !defined(MBEDTLS_ECP_C)
98 #error "MBEDTLS_ECDH_C defined, but not all prerequisites"
99 #endif
100 
101 #if defined(MBEDTLS_ECDSA_C) &&            \
102     ( !defined(MBEDTLS_ECP_C) ||           \
103       !( defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) || \
104          defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) || \
105          defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || \
106          defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) || \
107          defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) || \
108          defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) || \
109          defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) || \
110          defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) || \
111          defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) ||   \
112          defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) ||   \
113          defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) ) || \
114       !defined(MBEDTLS_ASN1_PARSE_C) ||    \
115       !defined(MBEDTLS_ASN1_WRITE_C) )
116 #error "MBEDTLS_ECDSA_C defined, but not all prerequisites"
117 #endif
118 
119 #if defined(MBEDTLS_ECJPAKE_C) &&           \
120     ( !defined(MBEDTLS_ECP_C) || !defined(MBEDTLS_MD_C) )
121 #error "MBEDTLS_ECJPAKE_C defined, but not all prerequisites"
122 #endif
123 
124 #if defined(MBEDTLS_ECP_RESTARTABLE)           && \
125     ( defined(MBEDTLS_USE_PSA_CRYPTO)          || \
126       defined(MBEDTLS_ECDH_COMPUTE_SHARED_ALT) || \
127       defined(MBEDTLS_ECDH_GEN_PUBLIC_ALT)     || \
128       defined(MBEDTLS_ECDSA_SIGN_ALT)          || \
129       defined(MBEDTLS_ECDSA_VERIFY_ALT)        || \
130       defined(MBEDTLS_ECDSA_GENKEY_ALT)        || \
131       defined(MBEDTLS_ECP_INTERNAL_ALT)        || \
132       defined(MBEDTLS_ECP_ALT) )
133 #error "MBEDTLS_ECP_RESTARTABLE defined, but it cannot coexist with an alternative or PSA-based ECP implementation"
134 #endif
135 
136 #if defined(MBEDTLS_ECP_RESTARTABLE)           && \
137     ! defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
138 #error "MBEDTLS_ECP_RESTARTABLE defined, but not MBEDTLS_ECDH_LEGACY_CONTEXT"
139 #endif
140 
141 #if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED)           && \
142     defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
143 #error "MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED defined, but MBEDTLS_ECDH_LEGACY_CONTEXT not disabled"
144 #endif
145 
146 #if defined(MBEDTLS_ECDSA_DETERMINISTIC) && !defined(MBEDTLS_HMAC_DRBG_C)
147 #error "MBEDTLS_ECDSA_DETERMINISTIC defined, but not all prerequisites"
148 #endif
149 
150 #if defined(MBEDTLS_ECP_C) && ( !defined(MBEDTLS_BIGNUM_C) || (    \
151     !defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) &&                  \
152     !defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) &&                  \
153     !defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) &&                  \
154     !defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) &&                  \
155     !defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) &&                  \
156     !defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)   &&                  \
157     !defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)   &&                  \
158     !defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)   &&                  \
159     !defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) &&                  \
160     !defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) &&                  \
161     !defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) &&                  \
162     !defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) &&                 \
163     !defined(MBEDTLS_ECP_DP_CURVE448_ENABLED) ) )
164 #error "MBEDTLS_ECP_C defined, but not all prerequisites"
165 #endif
166 
167 #if defined(MBEDTLS_ECP_C) && !(            \
168     defined(MBEDTLS_ECP_ALT) ||             \
169     defined(MBEDTLS_CTR_DRBG_C) ||          \
170     defined(MBEDTLS_HMAC_DRBG_C) ||         \
171     defined(MBEDTLS_ECP_NO_INTERNAL_RNG))
172 #error "MBEDTLS_ECP_C requires a DRBG module unless MBEDTLS_ECP_NO_INTERNAL_RNG is defined or an alternative implementation is used"
173 #endif
174 
175 #if defined(MBEDTLS_PK_PARSE_C) && !defined(MBEDTLS_ASN1_PARSE_C)
176 #error "MBEDTLS_PK_PARSE_C defined, but not all prerequesites"
177 #endif
178 
179 #if defined(MBEDTLS_ENTROPY_C) && (!defined(MBEDTLS_SHA512_C) &&      \
180                                     !defined(MBEDTLS_SHA256_C))
181 #error "MBEDTLS_ENTROPY_C defined, but not all prerequisites"
182 #endif
183 #if defined(MBEDTLS_ENTROPY_C) && defined(MBEDTLS_SHA512_C) &&         \
184     defined(MBEDTLS_CTR_DRBG_ENTROPY_LEN) && (MBEDTLS_CTR_DRBG_ENTROPY_LEN > 64)
185 #error "MBEDTLS_CTR_DRBG_ENTROPY_LEN value too high"
186 #endif
187 #if defined(MBEDTLS_ENTROPY_C) &&                                            \
188     ( !defined(MBEDTLS_SHA512_C) || defined(MBEDTLS_ENTROPY_FORCE_SHA256) ) \
189     && defined(MBEDTLS_CTR_DRBG_ENTROPY_LEN) && (MBEDTLS_CTR_DRBG_ENTROPY_LEN > 32)
190 #error "MBEDTLS_CTR_DRBG_ENTROPY_LEN value too high"
191 #endif
192 #if defined(MBEDTLS_ENTROPY_C) && \
193     defined(MBEDTLS_ENTROPY_FORCE_SHA256) && !defined(MBEDTLS_SHA256_C)
194 #error "MBEDTLS_ENTROPY_FORCE_SHA256 defined, but not all prerequisites"
195 #endif
196 
197 #if defined(__has_feature)
198 #if __has_feature(memory_sanitizer)
199 #define MBEDTLS_HAS_MEMSAN
200 #endif
201 #endif
202 #if defined(MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN) &&  !defined(MBEDTLS_HAS_MEMSAN)
203 #error "MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN requires building with MemorySanitizer"
204 #endif
205 #undef MBEDTLS_HAS_MEMSAN
206 
207 #if defined(MBEDTLS_TEST_NULL_ENTROPY) && \
208     ( !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES) )
209 #error "MBEDTLS_TEST_NULL_ENTROPY defined, but not all prerequisites"
210 #endif
211 #if defined(MBEDTLS_TEST_NULL_ENTROPY) && \
212      ( defined(MBEDTLS_ENTROPY_NV_SEED) || defined(MBEDTLS_ENTROPY_HARDWARE_ALT) || \
213     defined(MBEDTLS_HAVEGE_C) )
214 #error "MBEDTLS_TEST_NULL_ENTROPY defined, but entropy sources too"
215 #endif
216 
217 #if defined(MBEDTLS_GCM_C) && (                                        \
218         !defined(MBEDTLS_AES_C) && !defined(MBEDTLS_CAMELLIA_C) && !defined(MBEDTLS_ARIA_C) )
219 #error "MBEDTLS_GCM_C defined, but not all prerequisites"
220 #endif
221 
222 #if defined(MBEDTLS_ECP_RANDOMIZE_JAC_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
223 #error "MBEDTLS_ECP_RANDOMIZE_JAC_ALT defined, but not all prerequisites"
224 #endif
225 
226 #if defined(MBEDTLS_ECP_ADD_MIXED_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
227 #error "MBEDTLS_ECP_ADD_MIXED_ALT defined, but not all prerequisites"
228 #endif
229 
230 #if defined(MBEDTLS_ECP_DOUBLE_JAC_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
231 #error "MBEDTLS_ECP_DOUBLE_JAC_ALT defined, but not all prerequisites"
232 #endif
233 
234 #if defined(MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
235 #error "MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT defined, but not all prerequisites"
236 #endif
237 
238 #if defined(MBEDTLS_ECP_NORMALIZE_JAC_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
239 #error "MBEDTLS_ECP_NORMALIZE_JAC_ALT defined, but not all prerequisites"
240 #endif
241 
242 #if defined(MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
243 #error "MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT defined, but not all prerequisites"
244 #endif
245 
246 #if defined(MBEDTLS_ECP_RANDOMIZE_MXZ_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
247 #error "MBEDTLS_ECP_RANDOMIZE_MXZ_ALT defined, but not all prerequisites"
248 #endif
249 
250 #if defined(MBEDTLS_ECP_NORMALIZE_MXZ_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
251 #error "MBEDTLS_ECP_NORMALIZE_MXZ_ALT defined, but not all prerequisites"
252 #endif
253 
254 #if defined(MBEDTLS_ECP_NO_FALLBACK) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
255 #error "MBEDTLS_ECP_NO_FALLBACK defined, but no alternative implementation enabled"
256 #endif
257 
258 #if defined(MBEDTLS_HAVEGE_C) && !defined(MBEDTLS_TIMING_C)
259 #error "MBEDTLS_HAVEGE_C defined, but not all prerequisites"
260 #endif
261 
262 #if defined(MBEDTLS_HKDF_C) && !defined(MBEDTLS_MD_C)
263 #error "MBEDTLS_HKDF_C defined, but not all prerequisites"
264 #endif
265 
266 #if defined(MBEDTLS_HMAC_DRBG_C) && !defined(MBEDTLS_MD_C)
267 #error "MBEDTLS_HMAC_DRBG_C defined, but not all prerequisites"
268 #endif
269 
270 #if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) &&                 \
271     ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_ECDSA_C) ||          \
272       !defined(MBEDTLS_X509_CRT_PARSE_C) )
273 #error "MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED defined, but not all prerequisites"
274 #endif
275 
276 #if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) &&                 \
277     ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_RSA_C) ||          \
278       !defined(MBEDTLS_X509_CRT_PARSE_C) )
279 #error "MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED defined, but not all prerequisites"
280 #endif
281 
282 #if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) && !defined(MBEDTLS_DHM_C)
283 #error "MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED defined, but not all prerequisites"
284 #endif
285 
286 #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) &&                     \
287     !defined(MBEDTLS_ECDH_C)
288 #error "MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED defined, but not all prerequisites"
289 #endif
290 
291 #if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) &&                   \
292     ( !defined(MBEDTLS_DHM_C) || !defined(MBEDTLS_RSA_C) ||           \
293       !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_PKCS1_V15) )
294 #error "MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED defined, but not all prerequisites"
295 #endif
296 
297 #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) &&                 \
298     ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_RSA_C) ||          \
299       !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_PKCS1_V15) )
300 #error "MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED defined, but not all prerequisites"
301 #endif
302 
303 #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) &&                 \
304     ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_ECDSA_C) ||          \
305       !defined(MBEDTLS_X509_CRT_PARSE_C) )
306 #error "MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED defined, but not all prerequisites"
307 #endif
308 
309 #if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) &&                   \
310     ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) || \
311       !defined(MBEDTLS_PKCS1_V15) )
312 #error "MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED defined, but not all prerequisites"
313 #endif
314 
315 #if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) &&                       \
316     ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) || \
317       !defined(MBEDTLS_PKCS1_V15) )
318 #error "MBEDTLS_KEY_EXCHANGE_RSA_ENABLED defined, but not all prerequisites"
319 #endif
320 
321 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) &&                    \
322     ( !defined(MBEDTLS_ECJPAKE_C) || !defined(MBEDTLS_SHA256_C) ||      \
323       !defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) )
324 #error "MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED defined, but not all prerequisites"
325 #endif
326 
327 #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) &&        \
328     !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) &&              \
329     ( !defined(MBEDTLS_SHA256_C) &&                             \
330       !defined(MBEDTLS_SHA512_C) &&                             \
331       !defined(MBEDTLS_SHA1_C) )
332 #error "!MBEDTLS_SSL_KEEP_PEER_CERTIFICATE requires MBEDTLS_SHA512_C, MBEDTLS_SHA256_C or MBEDTLS_SHA1_C"
333 #endif
334 
335 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) &&                          \
336     ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_PLATFORM_MEMORY) )
337 #error "MBEDTLS_MEMORY_BUFFER_ALLOC_C defined, but not all prerequisites"
338 #endif
339 
340 #if defined(MBEDTLS_MEMORY_BACKTRACE) && !defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
341 #error "MBEDTLS_MEMORY_BACKTRACE defined, but not all prerequesites"
342 #endif
343 
344 #if defined(MBEDTLS_MEMORY_DEBUG) && !defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
345 #error "MBEDTLS_MEMORY_DEBUG defined, but not all prerequesites"
346 #endif
347 
348 #if defined(MBEDTLS_PADLOCK_C) && !defined(MBEDTLS_HAVE_ASM)
349 #error "MBEDTLS_PADLOCK_C defined, but not all prerequisites"
350 #endif
351 
352 #if defined(MBEDTLS_PEM_PARSE_C) && !defined(MBEDTLS_BASE64_C)
353 #error "MBEDTLS_PEM_PARSE_C defined, but not all prerequisites"
354 #endif
355 
356 #if defined(MBEDTLS_PEM_WRITE_C) && !defined(MBEDTLS_BASE64_C)
357 #error "MBEDTLS_PEM_WRITE_C defined, but not all prerequisites"
358 #endif
359 
360 #if defined(MBEDTLS_PK_C) && \
361     ( !defined(MBEDTLS_RSA_C) && !defined(MBEDTLS_ECP_C) )
362 #error "MBEDTLS_PK_C defined, but not all prerequisites"
363 #endif
364 
365 #if defined(MBEDTLS_PK_PARSE_C) && !defined(MBEDTLS_PK_C)
366 #error "MBEDTLS_PK_PARSE_C defined, but not all prerequisites"
367 #endif
368 
369 #if defined(MBEDTLS_PK_WRITE_C) && !defined(MBEDTLS_PK_C)
370 #error "MBEDTLS_PK_WRITE_C defined, but not all prerequisites"
371 #endif
372 
373 #if defined(MBEDTLS_PKCS11_C) && !defined(MBEDTLS_PK_C)
374 #error "MBEDTLS_PKCS11_C defined, but not all prerequisites"
375 #endif
376 
377 #if defined(MBEDTLS_PKCS11_C)
378 #if defined(MBEDTLS_DEPRECATED_REMOVED)
379 #error "MBEDTLS_PKCS11_C is deprecated and will be removed in a future version of Mbed TLS"
380 #elif defined(MBEDTLS_DEPRECATED_WARNING)
381 #warning "MBEDTLS_PKCS11_C is deprecated and will be removed in a future version of Mbed TLS"
382 #endif
383 #endif /* MBEDTLS_PKCS11_C */
384 
385 #if defined(MBEDTLS_PLATFORM_EXIT_ALT) && !defined(MBEDTLS_PLATFORM_C)
386 #error "MBEDTLS_PLATFORM_EXIT_ALT defined, but not all prerequisites"
387 #endif
388 
389 #if defined(MBEDTLS_PLATFORM_EXIT_MACRO) && !defined(MBEDTLS_PLATFORM_C)
390 #error "MBEDTLS_PLATFORM_EXIT_MACRO defined, but not all prerequisites"
391 #endif
392 
393 #if defined(MBEDTLS_PLATFORM_EXIT_MACRO) &&\
394     ( defined(MBEDTLS_PLATFORM_STD_EXIT) ||\
395         defined(MBEDTLS_PLATFORM_EXIT_ALT) )
396 #error "MBEDTLS_PLATFORM_EXIT_MACRO and MBEDTLS_PLATFORM_STD_EXIT/MBEDTLS_PLATFORM_EXIT_ALT cannot be defined simultaneously"
397 #endif
398 
399 #if defined(MBEDTLS_PLATFORM_TIME_ALT) &&\
400     ( !defined(MBEDTLS_PLATFORM_C) ||\
401         !defined(MBEDTLS_HAVE_TIME) )
402 #error "MBEDTLS_PLATFORM_TIME_ALT defined, but not all prerequisites"
403 #endif
404 
405 #if defined(MBEDTLS_PLATFORM_TIME_MACRO) &&\
406     ( !defined(MBEDTLS_PLATFORM_C) ||\
407         !defined(MBEDTLS_HAVE_TIME) )
408 #error "MBEDTLS_PLATFORM_TIME_MACRO defined, but not all prerequisites"
409 #endif
410 
411 #if defined(MBEDTLS_PLATFORM_TIME_TYPE_MACRO) &&\
412     ( !defined(MBEDTLS_PLATFORM_C) ||\
413         !defined(MBEDTLS_HAVE_TIME) )
414 #error "MBEDTLS_PLATFORM_TIME_TYPE_MACRO defined, but not all prerequisites"
415 #endif
416 
417 #if defined(MBEDTLS_PLATFORM_TIME_MACRO) &&\
418     ( defined(MBEDTLS_PLATFORM_STD_TIME) ||\
419         defined(MBEDTLS_PLATFORM_TIME_ALT) )
420 #error "MBEDTLS_PLATFORM_TIME_MACRO and MBEDTLS_PLATFORM_STD_TIME/MBEDTLS_PLATFORM_TIME_ALT cannot be defined simultaneously"
421 #endif
422 
423 #if defined(MBEDTLS_PLATFORM_TIME_TYPE_MACRO) &&\
424     ( defined(MBEDTLS_PLATFORM_STD_TIME) ||\
425         defined(MBEDTLS_PLATFORM_TIME_ALT) )
426 #error "MBEDTLS_PLATFORM_TIME_TYPE_MACRO and MBEDTLS_PLATFORM_STD_TIME/MBEDTLS_PLATFORM_TIME_ALT cannot be defined simultaneously"
427 #endif
428 
429 #if defined(MBEDTLS_PLATFORM_FPRINTF_ALT) && !defined(MBEDTLS_PLATFORM_C)
430 #error "MBEDTLS_PLATFORM_FPRINTF_ALT defined, but not all prerequisites"
431 #endif
432 
433 #if defined(MBEDTLS_PLATFORM_FPRINTF_MACRO) && !defined(MBEDTLS_PLATFORM_C)
434 #error "MBEDTLS_PLATFORM_FPRINTF_MACRO defined, but not all prerequisites"
435 #endif
436 
437 #if defined(MBEDTLS_PLATFORM_FPRINTF_MACRO) &&\
438     ( defined(MBEDTLS_PLATFORM_STD_FPRINTF) ||\
439         defined(MBEDTLS_PLATFORM_FPRINTF_ALT) )
440 #error "MBEDTLS_PLATFORM_FPRINTF_MACRO and MBEDTLS_PLATFORM_STD_FPRINTF/MBEDTLS_PLATFORM_FPRINTF_ALT cannot be defined simultaneously"
441 #endif
442 
443 #if defined(MBEDTLS_PLATFORM_FREE_MACRO) &&\
444     ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_PLATFORM_MEMORY) )
445 #error "MBEDTLS_PLATFORM_FREE_MACRO defined, but not all prerequisites"
446 #endif
447 
448 #if defined(MBEDTLS_PLATFORM_FREE_MACRO) &&\
449     defined(MBEDTLS_PLATFORM_STD_FREE)
450 #error "MBEDTLS_PLATFORM_FREE_MACRO and MBEDTLS_PLATFORM_STD_FREE cannot be defined simultaneously"
451 #endif
452 
453 #if defined(MBEDTLS_PLATFORM_FREE_MACRO) && !defined(MBEDTLS_PLATFORM_CALLOC_MACRO)
454 #error "MBEDTLS_PLATFORM_CALLOC_MACRO must be defined if MBEDTLS_PLATFORM_FREE_MACRO is"
455 #endif
456 
457 #if defined(MBEDTLS_PLATFORM_CALLOC_MACRO) &&\
458     ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_PLATFORM_MEMORY) )
459 #error "MBEDTLS_PLATFORM_CALLOC_MACRO defined, but not all prerequisites"
460 #endif
461 
462 #if defined(MBEDTLS_PLATFORM_CALLOC_MACRO) &&\
463     defined(MBEDTLS_PLATFORM_STD_CALLOC)
464 #error "MBEDTLS_PLATFORM_CALLOC_MACRO and MBEDTLS_PLATFORM_STD_CALLOC cannot be defined simultaneously"
465 #endif
466 
467 #if defined(MBEDTLS_PLATFORM_CALLOC_MACRO) && !defined(MBEDTLS_PLATFORM_FREE_MACRO)
468 #error "MBEDTLS_PLATFORM_FREE_MACRO must be defined if MBEDTLS_PLATFORM_CALLOC_MACRO is"
469 #endif
470 
471 #if defined(MBEDTLS_PLATFORM_MEMORY) && !defined(MBEDTLS_PLATFORM_C)
472 #error "MBEDTLS_PLATFORM_MEMORY defined, but not all prerequisites"
473 #endif
474 
475 #if defined(MBEDTLS_PLATFORM_PRINTF_ALT) && !defined(MBEDTLS_PLATFORM_C)
476 #error "MBEDTLS_PLATFORM_PRINTF_ALT defined, but not all prerequisites"
477 #endif
478 
479 #if defined(MBEDTLS_PLATFORM_PRINTF_MACRO) && !defined(MBEDTLS_PLATFORM_C)
480 #error "MBEDTLS_PLATFORM_PRINTF_MACRO defined, but not all prerequisites"
481 #endif
482 
483 #if defined(MBEDTLS_PLATFORM_PRINTF_MACRO) &&\
484     ( defined(MBEDTLS_PLATFORM_STD_PRINTF) ||\
485         defined(MBEDTLS_PLATFORM_PRINTF_ALT) )
486 #error "MBEDTLS_PLATFORM_PRINTF_MACRO and MBEDTLS_PLATFORM_STD_PRINTF/MBEDTLS_PLATFORM_PRINTF_ALT cannot be defined simultaneously"
487 #endif
488 
489 #if defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) && !defined(MBEDTLS_PLATFORM_C)
490 #error "MBEDTLS_PLATFORM_SNPRINTF_ALT defined, but not all prerequisites"
491 #endif
492 
493 #if defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO) && !defined(MBEDTLS_PLATFORM_C)
494 #error "MBEDTLS_PLATFORM_SNPRINTF_MACRO defined, but not all prerequisites"
495 #endif
496 
497 #if defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO) &&\
498     ( defined(MBEDTLS_PLATFORM_STD_SNPRINTF) ||\
499         defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) )
500 #error "MBEDTLS_PLATFORM_SNPRINTF_MACRO and MBEDTLS_PLATFORM_STD_SNPRINTF/MBEDTLS_PLATFORM_SNPRINTF_ALT cannot be defined simultaneously"
501 #endif
502 
503 #if defined(MBEDTLS_PLATFORM_STD_MEM_HDR) &&\
504     !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS)
505 #error "MBEDTLS_PLATFORM_STD_MEM_HDR defined, but not all prerequisites"
506 #endif
507 
508 #if defined(MBEDTLS_PLATFORM_STD_CALLOC) && !defined(MBEDTLS_PLATFORM_MEMORY)
509 #error "MBEDTLS_PLATFORM_STD_CALLOC defined, but not all prerequisites"
510 #endif
511 
512 #if defined(MBEDTLS_PLATFORM_STD_CALLOC) && !defined(MBEDTLS_PLATFORM_MEMORY)
513 #error "MBEDTLS_PLATFORM_STD_CALLOC defined, but not all prerequisites"
514 #endif
515 
516 #if defined(MBEDTLS_PLATFORM_STD_FREE) && !defined(MBEDTLS_PLATFORM_MEMORY)
517 #error "MBEDTLS_PLATFORM_STD_FREE defined, but not all prerequisites"
518 #endif
519 
520 #if defined(MBEDTLS_PLATFORM_STD_EXIT) &&\
521     !defined(MBEDTLS_PLATFORM_EXIT_ALT)
522 #error "MBEDTLS_PLATFORM_STD_EXIT defined, but not all prerequisites"
523 #endif
524 
525 #if defined(MBEDTLS_PLATFORM_STD_TIME) &&\
526     ( !defined(MBEDTLS_PLATFORM_TIME_ALT) ||\
527         !defined(MBEDTLS_HAVE_TIME) )
528 #error "MBEDTLS_PLATFORM_STD_TIME defined, but not all prerequisites"
529 #endif
530 
531 #if defined(MBEDTLS_PLATFORM_STD_FPRINTF) &&\
532     !defined(MBEDTLS_PLATFORM_FPRINTF_ALT)
533 #error "MBEDTLS_PLATFORM_STD_FPRINTF defined, but not all prerequisites"
534 #endif
535 
536 #if defined(MBEDTLS_PLATFORM_STD_PRINTF) &&\
537     !defined(MBEDTLS_PLATFORM_PRINTF_ALT)
538 #error "MBEDTLS_PLATFORM_STD_PRINTF defined, but not all prerequisites"
539 #endif
540 
541 #if defined(MBEDTLS_PLATFORM_STD_SNPRINTF) &&\
542     !defined(MBEDTLS_PLATFORM_SNPRINTF_ALT)
543 #error "MBEDTLS_PLATFORM_STD_SNPRINTF defined, but not all prerequisites"
544 #endif
545 
546 #if defined(MBEDTLS_ENTROPY_NV_SEED) &&\
547     ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_ENTROPY_C) )
548 #error "MBEDTLS_ENTROPY_NV_SEED defined, but not all prerequisites"
549 #endif
550 
551 #if defined(MBEDTLS_PLATFORM_NV_SEED_ALT) &&\
552     !defined(MBEDTLS_ENTROPY_NV_SEED)
553 #error "MBEDTLS_PLATFORM_NV_SEED_ALT defined, but not all prerequisites"
554 #endif
555 
556 #if defined(MBEDTLS_PLATFORM_STD_NV_SEED_READ) &&\
557     !defined(MBEDTLS_PLATFORM_NV_SEED_ALT)
558 #error "MBEDTLS_PLATFORM_STD_NV_SEED_READ defined, but not all prerequisites"
559 #endif
560 
561 #if defined(MBEDTLS_PLATFORM_STD_NV_SEED_WRITE) &&\
562     !defined(MBEDTLS_PLATFORM_NV_SEED_ALT)
563 #error "MBEDTLS_PLATFORM_STD_NV_SEED_WRITE defined, but not all prerequisites"
564 #endif
565 
566 #if defined(MBEDTLS_PLATFORM_NV_SEED_READ_MACRO) &&\
567     ( defined(MBEDTLS_PLATFORM_STD_NV_SEED_READ) ||\
568       defined(MBEDTLS_PLATFORM_NV_SEED_ALT) )
569 #error "MBEDTLS_PLATFORM_NV_SEED_READ_MACRO and MBEDTLS_PLATFORM_STD_NV_SEED_READ cannot be defined simultaneously"
570 #endif
571 
572 #if defined(MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO) &&\
573     ( defined(MBEDTLS_PLATFORM_STD_NV_SEED_WRITE) ||\
574       defined(MBEDTLS_PLATFORM_NV_SEED_ALT) )
575 #error "MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO and MBEDTLS_PLATFORM_STD_NV_SEED_WRITE cannot be defined simultaneously"
576 #endif
577 
578 #if defined(MBEDTLS_PSA_CRYPTO_C) &&                                    \
579     !( ( ( defined(MBEDTLS_CTR_DRBG_C) || defined(MBEDTLS_HMAC_DRBG_C) ) && \
580          defined(MBEDTLS_ENTROPY_C) ) ||                                \
581        defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG) )
582 #error "MBEDTLS_PSA_CRYPTO_C defined, but not all prerequisites (missing RNG)"
583 #endif
584 
585 #if defined(MBEDTLS_PSA_CRYPTO_SPM) && !defined(MBEDTLS_PSA_CRYPTO_C)
586 #error "MBEDTLS_PSA_CRYPTO_SPM defined, but not all prerequisites"
587 #endif
588 
589 #if defined(MBEDTLS_PSA_CRYPTO_SE_C) &&    \
590     ! ( defined(MBEDTLS_PSA_CRYPTO_C) && \
591         defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) )
592 #error "MBEDTLS_PSA_CRYPTO_SE_C defined, but not all prerequisites"
593 #endif
594 
595 #if defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) &&            \
596     ! defined(MBEDTLS_PSA_CRYPTO_C)
597 #error "MBEDTLS_PSA_CRYPTO_STORAGE_C defined, but not all prerequisites"
598 #endif
599 
600 #if defined(MBEDTLS_PSA_INJECT_ENTROPY) &&      \
601     !( defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) && \
602        defined(MBEDTLS_ENTROPY_NV_SEED) )
603 #error "MBEDTLS_PSA_INJECT_ENTROPY defined, but not all prerequisites"
604 #endif
605 
606 #if defined(MBEDTLS_PSA_INJECT_ENTROPY) &&              \
607     !defined(MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES)
608 #error "MBEDTLS_PSA_INJECT_ENTROPY is not compatible with actual entropy sources"
609 #endif
610 
611 #if defined(MBEDTLS_PSA_INJECT_ENTROPY) &&              \
612     defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG)
613 #error "MBEDTLS_PSA_INJECT_ENTROPY is not compatible with MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG"
614 #endif
615 
616 #if defined(MBEDTLS_PSA_ITS_FILE_C) && \
617     !defined(MBEDTLS_FS_IO)
618 #error "MBEDTLS_PSA_ITS_FILE_C defined, but not all prerequisites"
619 #endif
620 
621 #if defined(MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER) && \
622     defined(MBEDTLS_USE_PSA_CRYPTO)
623 #error "MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER defined, but it cannot coexist with MBEDTLS_USE_PSA_CRYPTO."
624 #endif
625 
626 #if defined(MBEDTLS_RSA_C) && ( !defined(MBEDTLS_BIGNUM_C) ||         \
627     !defined(MBEDTLS_OID_C) )
628 #error "MBEDTLS_RSA_C defined, but not all prerequisites"
629 #endif
630 
631 #if defined(MBEDTLS_RSA_C) && ( !defined(MBEDTLS_PKCS1_V21) &&         \
632     !defined(MBEDTLS_PKCS1_V15) )
633 #error "MBEDTLS_RSA_C defined, but none of the PKCS1 versions enabled"
634 #endif
635 
636 #if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) &&                        \
637     ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_PKCS1_V21) )
638 #error "MBEDTLS_X509_RSASSA_PSS_SUPPORT defined, but not all prerequisites"
639 #endif
640 
641 #if defined(MBEDTLS_SHA512_NO_SHA384) && !defined(MBEDTLS_SHA512_C)
642 #error "MBEDTLS_SHA512_NO_SHA384 defined without MBEDTLS_SHA512_C"
643 #endif
644 
645 #if defined(MBEDTLS_SSL_PROTO_SSL3) && ( !defined(MBEDTLS_MD5_C) ||     \
646     !defined(MBEDTLS_SHA1_C) )
647 #error "MBEDTLS_SSL_PROTO_SSL3 defined, but not all prerequisites"
648 #endif
649 
650 #if defined(MBEDTLS_SSL_PROTO_TLS1) && ( !defined(MBEDTLS_MD5_C) ||     \
651     !defined(MBEDTLS_SHA1_C) )
652 #error "MBEDTLS_SSL_PROTO_TLS1 defined, but not all prerequisites"
653 #endif
654 
655 #if defined(MBEDTLS_SSL_PROTO_TLS1_1) && ( !defined(MBEDTLS_MD5_C) ||     \
656     !defined(MBEDTLS_SHA1_C) )
657 #error "MBEDTLS_SSL_PROTO_TLS1_1 defined, but not all prerequisites"
658 #endif
659 
660 #if defined(MBEDTLS_SSL_PROTO_TLS1_2) && ( !defined(MBEDTLS_SHA1_C) &&     \
661     !defined(MBEDTLS_SHA256_C) && !defined(MBEDTLS_SHA512_C) )
662 #error "MBEDTLS_SSL_PROTO_TLS1_2 defined, but not all prerequisites"
663 #endif
664 
665 #if defined(MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL) && ( !defined(MBEDTLS_HKDF_C) && \
666     !defined(MBEDTLS_SHA256_C) && !defined(MBEDTLS_SHA512_C) )
667 #error "MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL defined, but not all prerequisites"
668 #endif
669 
670 #if (defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) ||  \
671      defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2)) && \
672     !(defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) ||                          \
673       defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) ||                      \
674       defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) ||                    \
675       defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) ||                  \
676       defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) ||                     \
677       defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) ||                   \
678       defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) ||                          \
679       defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) ||                      \
680       defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) ||                      \
681       defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) ||                    \
682       defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) )
683 #error "One or more versions of the TLS protocol are enabled " \
684         "but no key exchange methods defined with MBEDTLS_KEY_EXCHANGE_xxxx"
685 #endif
686 
687 #if defined(MBEDTLS_SSL_PROTO_DTLS)     && \
688     !defined(MBEDTLS_SSL_PROTO_TLS1_1)  && \
689     !defined(MBEDTLS_SSL_PROTO_TLS1_2)
690 #error "MBEDTLS_SSL_PROTO_DTLS defined, but not all prerequisites"
691 #endif
692 
693 #if defined(MBEDTLS_SSL_CLI_C) && !defined(MBEDTLS_SSL_TLS_C)
694 #error "MBEDTLS_SSL_CLI_C defined, but not all prerequisites"
695 #endif
696 
697 #if defined(MBEDTLS_SSL_TLS_C) && ( !defined(MBEDTLS_CIPHER_C) ||     \
698     !defined(MBEDTLS_MD_C) )
699 #error "MBEDTLS_SSL_TLS_C defined, but not all prerequisites"
700 #endif
701 
702 #if defined(MBEDTLS_SSL_SRV_C) && !defined(MBEDTLS_SSL_TLS_C)
703 #error "MBEDTLS_SSL_SRV_C defined, but not all prerequisites"
704 #endif
705 
706 #if defined(MBEDTLS_SSL_TLS_C) && (!defined(MBEDTLS_SSL_PROTO_SSL3) && \
707     !defined(MBEDTLS_SSL_PROTO_TLS1) && !defined(MBEDTLS_SSL_PROTO_TLS1_1) && \
708     !defined(MBEDTLS_SSL_PROTO_TLS1_2))
709 #error "MBEDTLS_SSL_TLS_C defined, but no protocols are active"
710 #endif
711 
712 #if defined(MBEDTLS_SSL_TLS_C) && (defined(MBEDTLS_SSL_PROTO_SSL3) && \
713     defined(MBEDTLS_SSL_PROTO_TLS1_1) && !defined(MBEDTLS_SSL_PROTO_TLS1))
714 #error "Illegal protocol selection"
715 #endif
716 
717 #if defined(MBEDTLS_SSL_TLS_C) && (defined(MBEDTLS_SSL_PROTO_TLS1) && \
718     defined(MBEDTLS_SSL_PROTO_TLS1_2) && !defined(MBEDTLS_SSL_PROTO_TLS1_1))
719 #error "Illegal protocol selection"
720 #endif
721 
722 #if defined(MBEDTLS_SSL_TLS_C) && (defined(MBEDTLS_SSL_PROTO_SSL3) && \
723     defined(MBEDTLS_SSL_PROTO_TLS1_2) && (!defined(MBEDTLS_SSL_PROTO_TLS1) || \
724     !defined(MBEDTLS_SSL_PROTO_TLS1_1)))
725 #error "Illegal protocol selection"
726 #endif
727 
728 #if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && !defined(MBEDTLS_SSL_PROTO_DTLS)
729 #error "MBEDTLS_SSL_DTLS_HELLO_VERIFY  defined, but not all prerequisites"
730 #endif
731 
732 #if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && \
733     !defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
734 #error "MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE  defined, but not all prerequisites"
735 #endif
736 
737 #if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) &&                              \
738     ( !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) )
739 #error "MBEDTLS_SSL_DTLS_ANTI_REPLAY  defined, but not all prerequisites"
740 #endif
741 
742 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) &&                              \
743     ( !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) )
744 #error "MBEDTLS_SSL_DTLS_CONNECTION_ID  defined, but not all prerequisites"
745 #endif
746 
747 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)            &&                 \
748     defined(MBEDTLS_SSL_CID_IN_LEN_MAX) &&                 \
749     MBEDTLS_SSL_CID_IN_LEN_MAX > 255
750 #error "MBEDTLS_SSL_CID_IN_LEN_MAX too large (max 255)"
751 #endif
752 
753 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)            &&                  \
754     defined(MBEDTLS_SSL_CID_OUT_LEN_MAX) &&                 \
755     MBEDTLS_SSL_CID_OUT_LEN_MAX > 255
756 #error "MBEDTLS_SSL_CID_OUT_LEN_MAX too large (max 255)"
757 #endif
758 
759 #if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) &&                              \
760     ( !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) )
761 #error "MBEDTLS_SSL_DTLS_BADMAC_LIMIT  defined, but not all prerequisites"
762 #endif
763 
764 #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) &&   \
765     !defined(MBEDTLS_SSL_PROTO_TLS1)   &&      \
766     !defined(MBEDTLS_SSL_PROTO_TLS1_1) &&      \
767     !defined(MBEDTLS_SSL_PROTO_TLS1_2)
768 #error "MBEDTLS_SSL_ENCRYPT_THEN_MAC defined, but not all prerequsites"
769 #endif
770 
771 #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) && \
772     !defined(MBEDTLS_SSL_PROTO_TLS1)   &&          \
773     !defined(MBEDTLS_SSL_PROTO_TLS1_1) &&          \
774     !defined(MBEDTLS_SSL_PROTO_TLS1_2)
775 #error "MBEDTLS_SSL_EXTENDED_MASTER_SECRET defined, but not all prerequsites"
776 #endif
777 
778 #if defined(MBEDTLS_SSL_TICKET_C) && !defined(MBEDTLS_CIPHER_C)
779 #error "MBEDTLS_SSL_TICKET_C defined, but not all prerequisites"
780 #endif
781 
782 #if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) && \
783     !defined(MBEDTLS_SSL_PROTO_SSL3) && !defined(MBEDTLS_SSL_PROTO_TLS1)
784 #error "MBEDTLS_SSL_CBC_RECORD_SPLITTING defined, but not all prerequisites"
785 #endif
786 
787 #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) && \
788         !defined(MBEDTLS_X509_CRT_PARSE_C)
789 #error "MBEDTLS_SSL_SERVER_NAME_INDICATION defined, but not all prerequisites"
790 #endif
791 
792 #if defined(MBEDTLS_THREADING_PTHREAD)
793 #if !defined(MBEDTLS_THREADING_C) || defined(MBEDTLS_THREADING_IMPL)
794 #error "MBEDTLS_THREADING_PTHREAD defined, but not all prerequisites"
795 #endif
796 #define MBEDTLS_THREADING_IMPL
797 #endif
798 
799 #if defined(MBEDTLS_THREADING_ALT)
800 #if !defined(MBEDTLS_THREADING_C) || defined(MBEDTLS_THREADING_IMPL)
801 #error "MBEDTLS_THREADING_ALT defined, but not all prerequisites"
802 #endif
803 #define MBEDTLS_THREADING_IMPL
804 #endif
805 
806 #if defined(MBEDTLS_THREADING_C) && !defined(MBEDTLS_THREADING_IMPL)
807 #error "MBEDTLS_THREADING_C defined, single threading implementation required"
808 #endif
809 #undef MBEDTLS_THREADING_IMPL
810 
811 #if defined(MBEDTLS_USE_PSA_CRYPTO) && !defined(MBEDTLS_PSA_CRYPTO_C)
812 #error "MBEDTLS_USE_PSA_CRYPTO defined, but not all prerequisites"
813 #endif
814 
815 #if defined(MBEDTLS_VERSION_FEATURES) && !defined(MBEDTLS_VERSION_C)
816 #error "MBEDTLS_VERSION_FEATURES defined, but not all prerequisites"
817 #endif
818 
819 #if defined(MBEDTLS_X509_USE_C) && ( !defined(MBEDTLS_BIGNUM_C) ||  \
820     !defined(MBEDTLS_OID_C) || !defined(MBEDTLS_ASN1_PARSE_C) ||      \
821     !defined(MBEDTLS_PK_PARSE_C) )
822 #error "MBEDTLS_X509_USE_C defined, but not all prerequisites"
823 #endif
824 
825 #if defined(MBEDTLS_X509_CREATE_C) && ( !defined(MBEDTLS_BIGNUM_C) ||  \
826     !defined(MBEDTLS_OID_C) || !defined(MBEDTLS_ASN1_WRITE_C) ||       \
827     !defined(MBEDTLS_PK_WRITE_C) )
828 #error "MBEDTLS_X509_CREATE_C defined, but not all prerequisites"
829 #endif
830 
831 #if defined(MBEDTLS_CERTS_C) && !defined(MBEDTLS_X509_USE_C)
832 #error "MBEDTLS_CERTS_C defined, but not all prerequisites"
833 #endif
834 
835 #if defined(MBEDTLS_X509_CRT_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) )
836 #error "MBEDTLS_X509_CRT_PARSE_C defined, but not all prerequisites"
837 #endif
838 
839 #if defined(MBEDTLS_X509_CRL_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) )
840 #error "MBEDTLS_X509_CRL_PARSE_C defined, but not all prerequisites"
841 #endif
842 
843 #if defined(MBEDTLS_X509_CSR_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) )
844 #error "MBEDTLS_X509_CSR_PARSE_C defined, but not all prerequisites"
845 #endif
846 
847 #if defined(MBEDTLS_X509_CRT_WRITE_C) && ( !defined(MBEDTLS_X509_CREATE_C) )
848 #error "MBEDTLS_X509_CRT_WRITE_C defined, but not all prerequisites"
849 #endif
850 
851 #if defined(MBEDTLS_X509_CSR_WRITE_C) && ( !defined(MBEDTLS_X509_CREATE_C) )
852 #error "MBEDTLS_X509_CSR_WRITE_C defined, but not all prerequisites"
853 #endif
854 
855 #if defined(MBEDTLS_HAVE_INT32) && defined(MBEDTLS_HAVE_INT64)
856 #error "MBEDTLS_HAVE_INT32 and MBEDTLS_HAVE_INT64 cannot be defined simultaneously"
857 #endif /* MBEDTLS_HAVE_INT32 && MBEDTLS_HAVE_INT64 */
858 
859 #if ( defined(MBEDTLS_HAVE_INT32) || defined(MBEDTLS_HAVE_INT64) ) && \
860     defined(MBEDTLS_HAVE_ASM)
861 #error "MBEDTLS_HAVE_INT32/MBEDTLS_HAVE_INT64 and MBEDTLS_HAVE_ASM cannot be defined simultaneously"
862 #endif /* (MBEDTLS_HAVE_INT32 || MBEDTLS_HAVE_INT64) && MBEDTLS_HAVE_ASM */
863 
864 #if defined(MBEDTLS_SSL_PROTO_SSL3)
865 #if defined(MBEDTLS_DEPRECATED_REMOVED)
866 #error "MBEDTLS_SSL_PROTO_SSL3 is deprecated and will be removed in a future version of Mbed TLS"
867 #elif defined(MBEDTLS_DEPRECATED_WARNING)
868 #warning "MBEDTLS_SSL_PROTO_SSL3 is deprecated and will be removed in a future version of Mbed TLS"
869 #endif
870 #endif /* MBEDTLS_SSL_PROTO_SSL3 */
871 
872 #if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO)
873 #if defined(MBEDTLS_DEPRECATED_REMOVED)
874 #error "MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is deprecated and will be removed in a future version of Mbed TLS"
875 #elif defined(MBEDTLS_DEPRECATED_WARNING)
876 #warning "MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is deprecated and will be removed in a future version of Mbed TLS"
877 #endif
878 #endif /* MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO */
879 
880 #if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
881 #if defined(MBEDTLS_DEPRECATED_REMOVED)
882 #error "MBEDTLS_SSL_HW_RECORD_ACCEL is deprecated and will be removed in a future version of Mbed TLS"
883 #elif defined(MBEDTLS_DEPRECATED_WARNING)
884 #warning "MBEDTLS_SSL_HW_RECORD_ACCEL is deprecated and will be removed in a future version of Mbed TLS"
885 #endif /* MBEDTLS_DEPRECATED_REMOVED */
886 #endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
887 
888 #if defined(MBEDTLS_SSL_DTLS_SRTP) && ( !defined(MBEDTLS_SSL_PROTO_DTLS) )
889 #error "MBEDTLS_SSL_DTLS_SRTP defined, but not all prerequisites"
890 #endif
891 
892 #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH) && ( !defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) )
893 #error "MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH defined, but not all prerequisites"
894 #endif
895 
896 /*
897  * Avoid warning from -pedantic. This is a convenient place for this
898  * workaround since this is included by every single file before the
899  * #if defined(MBEDTLS_xxx_C) that results in empty translation units.
900  */
901 typedef int mbedtls_iso_c_forbids_empty_translation_units;
902 
903 #endif /* MBEDTLS_CHECK_CONFIG_H */
904