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 prerequisites"
177 #endif
178 
179 #if defined(MBEDTLS_PKCS5_C) && !defined(MBEDTLS_MD_C)
180 #error "MBEDTLS_PKCS5_C defined, but not all prerequisites"
181 #endif
182 
183 #if defined(MBEDTLS_ENTROPY_C) && (!defined(MBEDTLS_SHA512_C) &&      \
184                                     !defined(MBEDTLS_SHA256_C))
185 #error "MBEDTLS_ENTROPY_C defined, but not all prerequisites"
186 #endif
187 #if defined(MBEDTLS_ENTROPY_C) && defined(MBEDTLS_SHA512_C) &&         \
188     defined(MBEDTLS_CTR_DRBG_ENTROPY_LEN) && (MBEDTLS_CTR_DRBG_ENTROPY_LEN > 64)
189 #error "MBEDTLS_CTR_DRBG_ENTROPY_LEN value too high"
190 #endif
191 #if defined(MBEDTLS_ENTROPY_C) &&                                            \
192     ( !defined(MBEDTLS_SHA512_C) || defined(MBEDTLS_ENTROPY_FORCE_SHA256) ) \
193     && defined(MBEDTLS_CTR_DRBG_ENTROPY_LEN) && (MBEDTLS_CTR_DRBG_ENTROPY_LEN > 32)
194 #error "MBEDTLS_CTR_DRBG_ENTROPY_LEN value too high"
195 #endif
196 #if defined(MBEDTLS_ENTROPY_C) && \
197     defined(MBEDTLS_ENTROPY_FORCE_SHA256) && !defined(MBEDTLS_SHA256_C)
198 #error "MBEDTLS_ENTROPY_FORCE_SHA256 defined, but not all prerequisites"
199 #endif
200 
201 #if defined(__has_feature)
202 #if __has_feature(memory_sanitizer)
203 #define MBEDTLS_HAS_MEMSAN
204 #endif
205 #endif
206 #if defined(MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN) &&  !defined(MBEDTLS_HAS_MEMSAN)
207 #error "MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN requires building with MemorySanitizer"
208 #endif
209 #undef MBEDTLS_HAS_MEMSAN
210 
211 #if defined(MBEDTLS_TEST_NULL_ENTROPY) && \
212     ( !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES) )
213 #error "MBEDTLS_TEST_NULL_ENTROPY defined, but not all prerequisites"
214 #endif
215 #if defined(MBEDTLS_TEST_NULL_ENTROPY) && \
216      ( defined(MBEDTLS_ENTROPY_NV_SEED) || defined(MBEDTLS_ENTROPY_HARDWARE_ALT) || \
217     defined(MBEDTLS_HAVEGE_C) )
218 #error "MBEDTLS_TEST_NULL_ENTROPY defined, but entropy sources too"
219 #endif
220 
221 #if defined(MBEDTLS_CCM_C) && (                                        \
222     !defined(MBEDTLS_AES_C) && !defined(MBEDTLS_CAMELLIA_C) && !defined(MBEDTLS_ARIA_C) )
223 #error "MBEDTLS_CCM_C defined, but not all prerequisites"
224 #endif
225 
226 #if defined(MBEDTLS_CCM_C) && !defined(MBEDTLS_CIPHER_C)
227 #error "MBEDTLS_CCM_C defined, but not all prerequisites"
228 #endif
229 
230 #if defined(MBEDTLS_GCM_C) && (                                        \
231     !defined(MBEDTLS_AES_C) && !defined(MBEDTLS_CAMELLIA_C) && !defined(MBEDTLS_ARIA_C) )
232 #error "MBEDTLS_GCM_C defined, but not all prerequisites"
233 #endif
234 
235 #if defined(MBEDTLS_GCM_C) && !defined(MBEDTLS_CIPHER_C)
236 #error "MBEDTLS_GCM_C defined, but not all prerequisites"
237 #endif
238 
239 #if defined(MBEDTLS_CHACHAPOLY_C) && !defined(MBEDTLS_CHACHA20_C)
240 #error "MBEDTLS_CHACHAPOLY_C defined, but not all prerequisites"
241 #endif
242 
243 #if defined(MBEDTLS_CHACHAPOLY_C) && !defined(MBEDTLS_POLY1305_C)
244 #error "MBEDTLS_CHACHAPOLY_C defined, but not all prerequisites"
245 #endif
246 
247 #if defined(MBEDTLS_ECP_RANDOMIZE_JAC_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
248 #error "MBEDTLS_ECP_RANDOMIZE_JAC_ALT defined, but not all prerequisites"
249 #endif
250 
251 #if defined(MBEDTLS_ECP_ADD_MIXED_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
252 #error "MBEDTLS_ECP_ADD_MIXED_ALT defined, but not all prerequisites"
253 #endif
254 
255 #if defined(MBEDTLS_ECP_DOUBLE_JAC_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
256 #error "MBEDTLS_ECP_DOUBLE_JAC_ALT defined, but not all prerequisites"
257 #endif
258 
259 #if defined(MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
260 #error "MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT defined, but not all prerequisites"
261 #endif
262 
263 #if defined(MBEDTLS_ECP_NORMALIZE_JAC_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
264 #error "MBEDTLS_ECP_NORMALIZE_JAC_ALT defined, but not all prerequisites"
265 #endif
266 
267 #if defined(MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
268 #error "MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT defined, but not all prerequisites"
269 #endif
270 
271 #if defined(MBEDTLS_ECP_RANDOMIZE_MXZ_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
272 #error "MBEDTLS_ECP_RANDOMIZE_MXZ_ALT defined, but not all prerequisites"
273 #endif
274 
275 #if defined(MBEDTLS_ECP_NORMALIZE_MXZ_ALT) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
276 #error "MBEDTLS_ECP_NORMALIZE_MXZ_ALT defined, but not all prerequisites"
277 #endif
278 
279 #if defined(MBEDTLS_ECP_NO_FALLBACK) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
280 #error "MBEDTLS_ECP_NO_FALLBACK defined, but no alternative implementation enabled"
281 #endif
282 
283 #if defined(MBEDTLS_HAVEGE_C) && !defined(MBEDTLS_TIMING_C)
284 #error "MBEDTLS_HAVEGE_C defined, but not all prerequisites"
285 #endif
286 
287 #if defined(MBEDTLS_HKDF_C) && !defined(MBEDTLS_MD_C)
288 #error "MBEDTLS_HKDF_C defined, but not all prerequisites"
289 #endif
290 
291 #if defined(MBEDTLS_HMAC_DRBG_C) && !defined(MBEDTLS_MD_C)
292 #error "MBEDTLS_HMAC_DRBG_C defined, but not all prerequisites"
293 #endif
294 
295 #if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) &&                 \
296     ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_ECDSA_C) ||          \
297       !defined(MBEDTLS_X509_CRT_PARSE_C) )
298 #error "MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED defined, but not all prerequisites"
299 #endif
300 
301 #if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) &&                 \
302     ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_RSA_C) ||          \
303       !defined(MBEDTLS_X509_CRT_PARSE_C) )
304 #error "MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED defined, but not all prerequisites"
305 #endif
306 
307 #if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) && !defined(MBEDTLS_DHM_C)
308 #error "MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED defined, but not all prerequisites"
309 #endif
310 
311 #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) &&                     \
312     !defined(MBEDTLS_ECDH_C)
313 #error "MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED defined, but not all prerequisites"
314 #endif
315 
316 #if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) &&                   \
317     ( !defined(MBEDTLS_DHM_C) || !defined(MBEDTLS_RSA_C) ||           \
318       !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_PKCS1_V15) )
319 #error "MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED defined, but not all prerequisites"
320 #endif
321 
322 #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) &&                 \
323     ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_RSA_C) ||          \
324       !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_PKCS1_V15) )
325 #error "MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED defined, but not all prerequisites"
326 #endif
327 
328 #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) &&                 \
329     ( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_ECDSA_C) ||          \
330       !defined(MBEDTLS_X509_CRT_PARSE_C) )
331 #error "MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED defined, but not all prerequisites"
332 #endif
333 
334 #if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) &&                   \
335     ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) || \
336       !defined(MBEDTLS_PKCS1_V15) )
337 #error "MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED defined, but not all prerequisites"
338 #endif
339 
340 #if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) &&                       \
341     ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) || \
342       !defined(MBEDTLS_PKCS1_V15) )
343 #error "MBEDTLS_KEY_EXCHANGE_RSA_ENABLED defined, but not all prerequisites"
344 #endif
345 
346 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) &&                    \
347     ( !defined(MBEDTLS_ECJPAKE_C) || !defined(MBEDTLS_SHA256_C) ||      \
348       !defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) )
349 #error "MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED defined, but not all prerequisites"
350 #endif
351 
352 #if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) &&        \
353     !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) &&              \
354     ( !defined(MBEDTLS_SHA256_C) &&                             \
355       !defined(MBEDTLS_SHA512_C) &&                             \
356       !defined(MBEDTLS_SHA1_C) )
357 #error "!MBEDTLS_SSL_KEEP_PEER_CERTIFICATE requires MBEDTLS_SHA512_C, MBEDTLS_SHA256_C or MBEDTLS_SHA1_C"
358 #endif
359 
360 #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) &&                          \
361     ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_PLATFORM_MEMORY) )
362 #error "MBEDTLS_MEMORY_BUFFER_ALLOC_C defined, but not all prerequisites"
363 #endif
364 
365 #if defined(MBEDTLS_MEMORY_BACKTRACE) && !defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
366 #error "MBEDTLS_MEMORY_BACKTRACE defined, but not all prerequisites"
367 #endif
368 
369 #if defined(MBEDTLS_MEMORY_DEBUG) && !defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
370 #error "MBEDTLS_MEMORY_DEBUG defined, but not all prerequisites"
371 #endif
372 
373 #if defined(MBEDTLS_PADLOCK_C) && !defined(MBEDTLS_HAVE_ASM)
374 #error "MBEDTLS_PADLOCK_C defined, but not all prerequisites"
375 #endif
376 
377 #if defined(MBEDTLS_PEM_PARSE_C) && !defined(MBEDTLS_BASE64_C)
378 #error "MBEDTLS_PEM_PARSE_C defined, but not all prerequisites"
379 #endif
380 
381 #if defined(MBEDTLS_PEM_WRITE_C) && !defined(MBEDTLS_BASE64_C)
382 #error "MBEDTLS_PEM_WRITE_C defined, but not all prerequisites"
383 #endif
384 
385 #if defined(MBEDTLS_PK_C) && \
386     ( !defined(MBEDTLS_RSA_C) && !defined(MBEDTLS_ECP_C) )
387 #error "MBEDTLS_PK_C defined, but not all prerequisites"
388 #endif
389 
390 #if defined(MBEDTLS_PK_PARSE_C) && !defined(MBEDTLS_PK_C)
391 #error "MBEDTLS_PK_PARSE_C defined, but not all prerequisites"
392 #endif
393 
394 #if defined(MBEDTLS_PK_WRITE_C) && !defined(MBEDTLS_PK_C)
395 #error "MBEDTLS_PK_WRITE_C defined, but not all prerequisites"
396 #endif
397 
398 #if defined(MBEDTLS_PKCS11_C) && !defined(MBEDTLS_PK_C)
399 #error "MBEDTLS_PKCS11_C defined, but not all prerequisites"
400 #endif
401 
402 #if defined(MBEDTLS_PKCS11_C)
403 #if defined(MBEDTLS_DEPRECATED_REMOVED)
404 #error "MBEDTLS_PKCS11_C is deprecated and will be removed in a future version of Mbed TLS"
405 #elif defined(MBEDTLS_DEPRECATED_WARNING)
406 #warning "MBEDTLS_PKCS11_C is deprecated and will be removed in a future version of Mbed TLS"
407 #endif
408 #endif /* MBEDTLS_PKCS11_C */
409 
410 #if defined(MBEDTLS_PLATFORM_EXIT_ALT) && !defined(MBEDTLS_PLATFORM_C)
411 #error "MBEDTLS_PLATFORM_EXIT_ALT defined, but not all prerequisites"
412 #endif
413 
414 #if defined(MBEDTLS_PLATFORM_EXIT_MACRO) && !defined(MBEDTLS_PLATFORM_C)
415 #error "MBEDTLS_PLATFORM_EXIT_MACRO defined, but not all prerequisites"
416 #endif
417 
418 #if defined(MBEDTLS_PLATFORM_EXIT_MACRO) &&\
419     ( defined(MBEDTLS_PLATFORM_STD_EXIT) ||\
420         defined(MBEDTLS_PLATFORM_EXIT_ALT) )
421 #error "MBEDTLS_PLATFORM_EXIT_MACRO and MBEDTLS_PLATFORM_STD_EXIT/MBEDTLS_PLATFORM_EXIT_ALT cannot be defined simultaneously"
422 #endif
423 
424 #if defined(MBEDTLS_PLATFORM_TIME_ALT) &&\
425     ( !defined(MBEDTLS_PLATFORM_C) ||\
426         !defined(MBEDTLS_HAVE_TIME) )
427 #error "MBEDTLS_PLATFORM_TIME_ALT defined, but not all prerequisites"
428 #endif
429 
430 #if defined(MBEDTLS_PLATFORM_TIME_MACRO) &&\
431     ( !defined(MBEDTLS_PLATFORM_C) ||\
432         !defined(MBEDTLS_HAVE_TIME) )
433 #error "MBEDTLS_PLATFORM_TIME_MACRO defined, but not all prerequisites"
434 #endif
435 
436 #if defined(MBEDTLS_PLATFORM_TIME_TYPE_MACRO) &&\
437     ( !defined(MBEDTLS_PLATFORM_C) ||\
438         !defined(MBEDTLS_HAVE_TIME) )
439 #error "MBEDTLS_PLATFORM_TIME_TYPE_MACRO defined, but not all prerequisites"
440 #endif
441 
442 #if defined(MBEDTLS_PLATFORM_TIME_MACRO) &&\
443     ( defined(MBEDTLS_PLATFORM_STD_TIME) ||\
444         defined(MBEDTLS_PLATFORM_TIME_ALT) )
445 #error "MBEDTLS_PLATFORM_TIME_MACRO and MBEDTLS_PLATFORM_STD_TIME/MBEDTLS_PLATFORM_TIME_ALT cannot be defined simultaneously"
446 #endif
447 
448 #if defined(MBEDTLS_PLATFORM_TIME_TYPE_MACRO) &&\
449     ( defined(MBEDTLS_PLATFORM_STD_TIME) ||\
450         defined(MBEDTLS_PLATFORM_TIME_ALT) )
451 #error "MBEDTLS_PLATFORM_TIME_TYPE_MACRO and MBEDTLS_PLATFORM_STD_TIME/MBEDTLS_PLATFORM_TIME_ALT cannot be defined simultaneously"
452 #endif
453 
454 #if defined(MBEDTLS_PLATFORM_FPRINTF_ALT) && !defined(MBEDTLS_PLATFORM_C)
455 #error "MBEDTLS_PLATFORM_FPRINTF_ALT defined, but not all prerequisites"
456 #endif
457 
458 #if defined(MBEDTLS_PLATFORM_FPRINTF_MACRO) && !defined(MBEDTLS_PLATFORM_C)
459 #error "MBEDTLS_PLATFORM_FPRINTF_MACRO defined, but not all prerequisites"
460 #endif
461 
462 #if defined(MBEDTLS_PLATFORM_FPRINTF_MACRO) &&\
463     ( defined(MBEDTLS_PLATFORM_STD_FPRINTF) ||\
464         defined(MBEDTLS_PLATFORM_FPRINTF_ALT) )
465 #error "MBEDTLS_PLATFORM_FPRINTF_MACRO and MBEDTLS_PLATFORM_STD_FPRINTF/MBEDTLS_PLATFORM_FPRINTF_ALT cannot be defined simultaneously"
466 #endif
467 
468 #if defined(MBEDTLS_PLATFORM_FREE_MACRO) &&\
469     ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_PLATFORM_MEMORY) )
470 #error "MBEDTLS_PLATFORM_FREE_MACRO defined, but not all prerequisites"
471 #endif
472 
473 #if defined(MBEDTLS_PLATFORM_FREE_MACRO) &&\
474     defined(MBEDTLS_PLATFORM_STD_FREE)
475 #error "MBEDTLS_PLATFORM_FREE_MACRO and MBEDTLS_PLATFORM_STD_FREE cannot be defined simultaneously"
476 #endif
477 
478 #if defined(MBEDTLS_PLATFORM_FREE_MACRO) && !defined(MBEDTLS_PLATFORM_CALLOC_MACRO)
479 #error "MBEDTLS_PLATFORM_CALLOC_MACRO must be defined if MBEDTLS_PLATFORM_FREE_MACRO is"
480 #endif
481 
482 #if defined(MBEDTLS_PLATFORM_CALLOC_MACRO) &&\
483     ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_PLATFORM_MEMORY) )
484 #error "MBEDTLS_PLATFORM_CALLOC_MACRO defined, but not all prerequisites"
485 #endif
486 
487 #if defined(MBEDTLS_PLATFORM_CALLOC_MACRO) &&\
488     defined(MBEDTLS_PLATFORM_STD_CALLOC)
489 #error "MBEDTLS_PLATFORM_CALLOC_MACRO and MBEDTLS_PLATFORM_STD_CALLOC cannot be defined simultaneously"
490 #endif
491 
492 #if defined(MBEDTLS_PLATFORM_CALLOC_MACRO) && !defined(MBEDTLS_PLATFORM_FREE_MACRO)
493 #error "MBEDTLS_PLATFORM_FREE_MACRO must be defined if MBEDTLS_PLATFORM_CALLOC_MACRO is"
494 #endif
495 
496 #if defined(MBEDTLS_PLATFORM_MEMORY) && !defined(MBEDTLS_PLATFORM_C)
497 #error "MBEDTLS_PLATFORM_MEMORY defined, but not all prerequisites"
498 #endif
499 
500 #if defined(MBEDTLS_PLATFORM_PRINTF_ALT) && !defined(MBEDTLS_PLATFORM_C)
501 #error "MBEDTLS_PLATFORM_PRINTF_ALT defined, but not all prerequisites"
502 #endif
503 
504 #if defined(MBEDTLS_PLATFORM_PRINTF_MACRO) && !defined(MBEDTLS_PLATFORM_C)
505 #error "MBEDTLS_PLATFORM_PRINTF_MACRO defined, but not all prerequisites"
506 #endif
507 
508 #if defined(MBEDTLS_PLATFORM_PRINTF_MACRO) &&\
509     ( defined(MBEDTLS_PLATFORM_STD_PRINTF) ||\
510         defined(MBEDTLS_PLATFORM_PRINTF_ALT) )
511 #error "MBEDTLS_PLATFORM_PRINTF_MACRO and MBEDTLS_PLATFORM_STD_PRINTF/MBEDTLS_PLATFORM_PRINTF_ALT cannot be defined simultaneously"
512 #endif
513 
514 #if defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) && !defined(MBEDTLS_PLATFORM_C)
515 #error "MBEDTLS_PLATFORM_SNPRINTF_ALT defined, but not all prerequisites"
516 #endif
517 
518 #if defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO) && !defined(MBEDTLS_PLATFORM_C)
519 #error "MBEDTLS_PLATFORM_SNPRINTF_MACRO defined, but not all prerequisites"
520 #endif
521 
522 #if defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO) &&\
523     ( defined(MBEDTLS_PLATFORM_STD_SNPRINTF) ||\
524         defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) )
525 #error "MBEDTLS_PLATFORM_SNPRINTF_MACRO and MBEDTLS_PLATFORM_STD_SNPRINTF/MBEDTLS_PLATFORM_SNPRINTF_ALT cannot be defined simultaneously"
526 #endif
527 
528 #if defined(MBEDTLS_PLATFORM_STD_MEM_HDR) &&\
529     !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS)
530 #error "MBEDTLS_PLATFORM_STD_MEM_HDR defined, but not all prerequisites"
531 #endif
532 
533 #if defined(MBEDTLS_PLATFORM_STD_CALLOC) && !defined(MBEDTLS_PLATFORM_MEMORY)
534 #error "MBEDTLS_PLATFORM_STD_CALLOC defined, but not all prerequisites"
535 #endif
536 
537 #if defined(MBEDTLS_PLATFORM_STD_FREE) && !defined(MBEDTLS_PLATFORM_MEMORY)
538 #error "MBEDTLS_PLATFORM_STD_FREE defined, but not all prerequisites"
539 #endif
540 
541 #if defined(MBEDTLS_PLATFORM_STD_EXIT) &&\
542     !defined(MBEDTLS_PLATFORM_EXIT_ALT)
543 #error "MBEDTLS_PLATFORM_STD_EXIT defined, but not all prerequisites"
544 #endif
545 
546 #if defined(MBEDTLS_PLATFORM_STD_TIME) &&\
547     ( !defined(MBEDTLS_PLATFORM_TIME_ALT) ||\
548         !defined(MBEDTLS_HAVE_TIME) )
549 #error "MBEDTLS_PLATFORM_STD_TIME defined, but not all prerequisites"
550 #endif
551 
552 #if defined(MBEDTLS_PLATFORM_STD_FPRINTF) &&\
553     !defined(MBEDTLS_PLATFORM_FPRINTF_ALT)
554 #error "MBEDTLS_PLATFORM_STD_FPRINTF defined, but not all prerequisites"
555 #endif
556 
557 #if defined(MBEDTLS_PLATFORM_STD_PRINTF) &&\
558     !defined(MBEDTLS_PLATFORM_PRINTF_ALT)
559 #error "MBEDTLS_PLATFORM_STD_PRINTF defined, but not all prerequisites"
560 #endif
561 
562 #if defined(MBEDTLS_PLATFORM_STD_SNPRINTF) &&\
563     !defined(MBEDTLS_PLATFORM_SNPRINTF_ALT)
564 #error "MBEDTLS_PLATFORM_STD_SNPRINTF defined, but not all prerequisites"
565 #endif
566 
567 #if defined(MBEDTLS_ENTROPY_NV_SEED) &&\
568     ( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_ENTROPY_C) )
569 #error "MBEDTLS_ENTROPY_NV_SEED defined, but not all prerequisites"
570 #endif
571 
572 #if defined(MBEDTLS_PLATFORM_NV_SEED_ALT) &&\
573     !defined(MBEDTLS_ENTROPY_NV_SEED)
574 #error "MBEDTLS_PLATFORM_NV_SEED_ALT defined, but not all prerequisites"
575 #endif
576 
577 #if defined(MBEDTLS_PLATFORM_STD_NV_SEED_READ) &&\
578     !defined(MBEDTLS_PLATFORM_NV_SEED_ALT)
579 #error "MBEDTLS_PLATFORM_STD_NV_SEED_READ defined, but not all prerequisites"
580 #endif
581 
582 #if defined(MBEDTLS_PLATFORM_STD_NV_SEED_WRITE) &&\
583     !defined(MBEDTLS_PLATFORM_NV_SEED_ALT)
584 #error "MBEDTLS_PLATFORM_STD_NV_SEED_WRITE defined, but not all prerequisites"
585 #endif
586 
587 #if defined(MBEDTLS_PLATFORM_NV_SEED_READ_MACRO) &&\
588     ( defined(MBEDTLS_PLATFORM_STD_NV_SEED_READ) ||\
589       defined(MBEDTLS_PLATFORM_NV_SEED_ALT) )
590 #error "MBEDTLS_PLATFORM_NV_SEED_READ_MACRO and MBEDTLS_PLATFORM_STD_NV_SEED_READ cannot be defined simultaneously"
591 #endif
592 
593 #if defined(MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO) &&\
594     ( defined(MBEDTLS_PLATFORM_STD_NV_SEED_WRITE) ||\
595       defined(MBEDTLS_PLATFORM_NV_SEED_ALT) )
596 #error "MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO and MBEDTLS_PLATFORM_STD_NV_SEED_WRITE cannot be defined simultaneously"
597 #endif
598 
599 #if defined(MBEDTLS_PSA_CRYPTO_C) &&                                    \
600     !( ( ( defined(MBEDTLS_CTR_DRBG_C) || defined(MBEDTLS_HMAC_DRBG_C) ) && \
601          defined(MBEDTLS_ENTROPY_C) ) ||                                \
602        defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG) )
603 #error "MBEDTLS_PSA_CRYPTO_C defined, but not all prerequisites (missing RNG)"
604 #endif
605 
606 #if defined(MBEDTLS_PSA_CRYPTO_SPM) && !defined(MBEDTLS_PSA_CRYPTO_C)
607 #error "MBEDTLS_PSA_CRYPTO_SPM defined, but not all prerequisites"
608 #endif
609 
610 #if defined(MBEDTLS_PSA_CRYPTO_SE_C) &&    \
611     ! ( defined(MBEDTLS_PSA_CRYPTO_C) && \
612         defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) )
613 #error "MBEDTLS_PSA_CRYPTO_SE_C defined, but not all prerequisites"
614 #endif
615 
616 #if defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) &&            \
617     ! defined(MBEDTLS_PSA_CRYPTO_C)
618 #error "MBEDTLS_PSA_CRYPTO_STORAGE_C defined, but not all prerequisites"
619 #endif
620 
621 #if defined(MBEDTLS_PSA_INJECT_ENTROPY) &&      \
622     !( defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) && \
623        defined(MBEDTLS_ENTROPY_NV_SEED) )
624 #error "MBEDTLS_PSA_INJECT_ENTROPY defined, but not all prerequisites"
625 #endif
626 
627 #if defined(MBEDTLS_PSA_INJECT_ENTROPY) &&              \
628     !defined(MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES)
629 #error "MBEDTLS_PSA_INJECT_ENTROPY is not compatible with actual entropy sources"
630 #endif
631 
632 #if defined(MBEDTLS_PSA_INJECT_ENTROPY) &&              \
633     defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG)
634 #error "MBEDTLS_PSA_INJECT_ENTROPY is not compatible with MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG"
635 #endif
636 
637 #if defined(MBEDTLS_PSA_ITS_FILE_C) && \
638     !defined(MBEDTLS_FS_IO)
639 #error "MBEDTLS_PSA_ITS_FILE_C defined, but not all prerequisites"
640 #endif
641 
642 #if defined(MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER) && \
643     defined(MBEDTLS_USE_PSA_CRYPTO)
644 #error "MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER defined, but it cannot coexist with MBEDTLS_USE_PSA_CRYPTO."
645 #endif
646 
647 #if defined(MBEDTLS_PK_C) && defined(MBEDTLS_USE_PSA_CRYPTO) && \
648     !defined(MBEDTLS_PK_WRITE_C) && defined(MBEDTLS_ECDSA_C)
649 #error "MBEDTLS_PK_C in configuration with MBEDTLS_USE_PSA_CRYPTO and \
650         MBEDTLS_ECDSA_C requires MBEDTLS_PK_WRITE_C to be defined."
651 #endif
652 
653 #if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_PKCS1_V15) && \
654     !defined(MBEDTLS_PK_WRITE_C) && defined(MBEDTLS_PSA_CRYPTO_C)
655 #error "MBEDTLS_PSA_CRYPTO_C, MBEDTLS_RSA_C and  MBEDTLS_PKCS1_V15 defined, \
656         but not all prerequisites"
657 #endif
658 
659 #if defined(MBEDTLS_RSA_C) && ( !defined(MBEDTLS_BIGNUM_C) ||         \
660     !defined(MBEDTLS_OID_C) )
661 #error "MBEDTLS_RSA_C defined, but not all prerequisites"
662 #endif
663 
664 #if defined(MBEDTLS_RSA_C) && ( !defined(MBEDTLS_PKCS1_V21) &&         \
665     !defined(MBEDTLS_PKCS1_V15) )
666 #error "MBEDTLS_RSA_C defined, but none of the PKCS1 versions enabled"
667 #endif
668 
669 #if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) &&                        \
670     ( !defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_PKCS1_V21) )
671 #error "MBEDTLS_X509_RSASSA_PSS_SUPPORT defined, but not all prerequisites"
672 #endif
673 
674 #if defined(MBEDTLS_SHA512_NO_SHA384) && !defined(MBEDTLS_SHA512_C)
675 #error "MBEDTLS_SHA512_NO_SHA384 defined without MBEDTLS_SHA512_C"
676 #endif
677 
678 #if defined(MBEDTLS_SSL_PROTO_SSL3) && ( !defined(MBEDTLS_MD5_C) ||     \
679     !defined(MBEDTLS_SHA1_C) )
680 #error "MBEDTLS_SSL_PROTO_SSL3 defined, but not all prerequisites"
681 #endif
682 
683 #if defined(MBEDTLS_SSL_PROTO_TLS1) && ( !defined(MBEDTLS_MD5_C) ||     \
684     !defined(MBEDTLS_SHA1_C) )
685 #error "MBEDTLS_SSL_PROTO_TLS1 defined, but not all prerequisites"
686 #endif
687 
688 #if defined(MBEDTLS_SSL_PROTO_TLS1_1) && ( !defined(MBEDTLS_MD5_C) ||     \
689     !defined(MBEDTLS_SHA1_C) )
690 #error "MBEDTLS_SSL_PROTO_TLS1_1 defined, but not all prerequisites"
691 #endif
692 
693 #if defined(MBEDTLS_SSL_PROTO_TLS1_2) && ( !defined(MBEDTLS_SHA1_C) &&     \
694     !defined(MBEDTLS_SHA256_C) && !defined(MBEDTLS_SHA512_C) )
695 #error "MBEDTLS_SSL_PROTO_TLS1_2 defined, but not all prerequisites"
696 #endif
697 
698 #if defined(MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL) && ( !defined(MBEDTLS_HKDF_C) && \
699     !defined(MBEDTLS_SHA256_C) && !defined(MBEDTLS_SHA512_C) )
700 #error "MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL defined, but not all prerequisites"
701 #endif
702 
703 #if (defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) ||  \
704      defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2)) && \
705     !(defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) ||                          \
706       defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) ||                      \
707       defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) ||                    \
708       defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) ||                  \
709       defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) ||                     \
710       defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) ||                   \
711       defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) ||                          \
712       defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) ||                      \
713       defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) ||                      \
714       defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) ||                    \
715       defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) )
716 #error "One or more versions of the TLS protocol are enabled " \
717         "but no key exchange methods defined with MBEDTLS_KEY_EXCHANGE_xxxx"
718 #endif
719 
720 #if defined(MBEDTLS_SSL_PROTO_DTLS)     && \
721     !defined(MBEDTLS_SSL_PROTO_TLS1_1)  && \
722     !defined(MBEDTLS_SSL_PROTO_TLS1_2)
723 #error "MBEDTLS_SSL_PROTO_DTLS defined, but not all prerequisites"
724 #endif
725 
726 #if defined(MBEDTLS_SSL_CLI_C) && !defined(MBEDTLS_SSL_TLS_C)
727 #error "MBEDTLS_SSL_CLI_C defined, but not all prerequisites"
728 #endif
729 
730 #if defined(MBEDTLS_SSL_TLS_C) && ( !defined(MBEDTLS_CIPHER_C) ||     \
731     !defined(MBEDTLS_MD_C) )
732 #error "MBEDTLS_SSL_TLS_C defined, but not all prerequisites"
733 #endif
734 
735 #if defined(MBEDTLS_SSL_SRV_C) && !defined(MBEDTLS_SSL_TLS_C)
736 #error "MBEDTLS_SSL_SRV_C defined, but not all prerequisites"
737 #endif
738 
739 #if defined(MBEDTLS_SSL_TLS_C) && (!defined(MBEDTLS_SSL_PROTO_SSL3) && \
740     !defined(MBEDTLS_SSL_PROTO_TLS1) && !defined(MBEDTLS_SSL_PROTO_TLS1_1) && \
741     !defined(MBEDTLS_SSL_PROTO_TLS1_2))
742 #error "MBEDTLS_SSL_TLS_C defined, but no protocols are active"
743 #endif
744 
745 #if defined(MBEDTLS_SSL_TLS_C) && (defined(MBEDTLS_SSL_PROTO_SSL3) && \
746     defined(MBEDTLS_SSL_PROTO_TLS1_1) && !defined(MBEDTLS_SSL_PROTO_TLS1))
747 #error "Illegal protocol selection"
748 #endif
749 
750 #if defined(MBEDTLS_SSL_TLS_C) && (defined(MBEDTLS_SSL_PROTO_TLS1) && \
751     defined(MBEDTLS_SSL_PROTO_TLS1_2) && !defined(MBEDTLS_SSL_PROTO_TLS1_1))
752 #error "Illegal protocol selection"
753 #endif
754 
755 #if defined(MBEDTLS_SSL_TLS_C) && (defined(MBEDTLS_SSL_PROTO_SSL3) && \
756     defined(MBEDTLS_SSL_PROTO_TLS1_2) && (!defined(MBEDTLS_SSL_PROTO_TLS1) || \
757     !defined(MBEDTLS_SSL_PROTO_TLS1_1)))
758 #error "Illegal protocol selection"
759 #endif
760 
761 #if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && !defined(MBEDTLS_SSL_PROTO_DTLS)
762 #error "MBEDTLS_SSL_DTLS_HELLO_VERIFY  defined, but not all prerequisites"
763 #endif
764 
765 #if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && \
766     !defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
767 #error "MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE  defined, but not all prerequisites"
768 #endif
769 
770 #if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY) &&                              \
771     ( !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) )
772 #error "MBEDTLS_SSL_DTLS_ANTI_REPLAY  defined, but not all prerequisites"
773 #endif
774 
775 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) &&                              \
776     ( !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) )
777 #error "MBEDTLS_SSL_DTLS_CONNECTION_ID  defined, but not all prerequisites"
778 #endif
779 
780 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)            &&                 \
781     defined(MBEDTLS_SSL_CID_IN_LEN_MAX) &&                 \
782     MBEDTLS_SSL_CID_IN_LEN_MAX > 255
783 #error "MBEDTLS_SSL_CID_IN_LEN_MAX too large (max 255)"
784 #endif
785 
786 #if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)            &&                  \
787     defined(MBEDTLS_SSL_CID_OUT_LEN_MAX) &&                 \
788     MBEDTLS_SSL_CID_OUT_LEN_MAX > 255
789 #error "MBEDTLS_SSL_CID_OUT_LEN_MAX too large (max 255)"
790 #endif
791 
792 #if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) &&                              \
793     ( !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) )
794 #error "MBEDTLS_SSL_DTLS_BADMAC_LIMIT  defined, but not all prerequisites"
795 #endif
796 
797 #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC) &&   \
798     !defined(MBEDTLS_SSL_PROTO_TLS1)   &&      \
799     !defined(MBEDTLS_SSL_PROTO_TLS1_1) &&      \
800     !defined(MBEDTLS_SSL_PROTO_TLS1_2)
801 #error "MBEDTLS_SSL_ENCRYPT_THEN_MAC defined, but not all prerequisites"
802 #endif
803 
804 #if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET) && \
805     !defined(MBEDTLS_SSL_PROTO_TLS1)   &&          \
806     !defined(MBEDTLS_SSL_PROTO_TLS1_1) &&          \
807     !defined(MBEDTLS_SSL_PROTO_TLS1_2)
808 #error "MBEDTLS_SSL_EXTENDED_MASTER_SECRET defined, but not all prerequisites"
809 #endif
810 
811 #if defined(MBEDTLS_SSL_TICKET_C) && !defined(MBEDTLS_CIPHER_C)
812 #error "MBEDTLS_SSL_TICKET_C defined, but not all prerequisites"
813 #endif
814 
815 #if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING) && \
816     !defined(MBEDTLS_SSL_PROTO_SSL3) && !defined(MBEDTLS_SSL_PROTO_TLS1)
817 #error "MBEDTLS_SSL_CBC_RECORD_SPLITTING defined, but not all prerequisites"
818 #endif
819 
820 #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION) && \
821         !defined(MBEDTLS_X509_CRT_PARSE_C)
822 #error "MBEDTLS_SSL_SERVER_NAME_INDICATION defined, but not all prerequisites"
823 #endif
824 
825 #if defined(MBEDTLS_THREADING_PTHREAD)
826 #if !defined(MBEDTLS_THREADING_C) || defined(MBEDTLS_THREADING_IMPL)
827 #error "MBEDTLS_THREADING_PTHREAD defined, but not all prerequisites"
828 #endif
829 #define MBEDTLS_THREADING_IMPL
830 #endif
831 
832 #if defined(MBEDTLS_THREADING_ALT)
833 #if !defined(MBEDTLS_THREADING_C) || defined(MBEDTLS_THREADING_IMPL)
834 #error "MBEDTLS_THREADING_ALT defined, but not all prerequisites"
835 #endif
836 #define MBEDTLS_THREADING_IMPL
837 #endif
838 
839 #if defined(MBEDTLS_THREADING_C) && !defined(MBEDTLS_THREADING_IMPL)
840 #error "MBEDTLS_THREADING_C defined, single threading implementation required"
841 #endif
842 #undef MBEDTLS_THREADING_IMPL
843 
844 #if defined(MBEDTLS_USE_PSA_CRYPTO) && !defined(MBEDTLS_PSA_CRYPTO_C)
845 #error "MBEDTLS_USE_PSA_CRYPTO defined, but not all prerequisites"
846 #endif
847 
848 #if defined(MBEDTLS_VERSION_FEATURES) && !defined(MBEDTLS_VERSION_C)
849 #error "MBEDTLS_VERSION_FEATURES defined, but not all prerequisites"
850 #endif
851 
852 #if defined(MBEDTLS_X509_USE_C) && ( !defined(MBEDTLS_BIGNUM_C) ||  \
853     !defined(MBEDTLS_OID_C) || !defined(MBEDTLS_ASN1_PARSE_C) ||      \
854     !defined(MBEDTLS_PK_PARSE_C) )
855 #error "MBEDTLS_X509_USE_C defined, but not all prerequisites"
856 #endif
857 
858 #if defined(MBEDTLS_X509_CREATE_C) && ( !defined(MBEDTLS_BIGNUM_C) ||  \
859     !defined(MBEDTLS_OID_C) || !defined(MBEDTLS_ASN1_WRITE_C) ||       \
860     !defined(MBEDTLS_PK_WRITE_C) )
861 #error "MBEDTLS_X509_CREATE_C defined, but not all prerequisites"
862 #endif
863 
864 #if defined(MBEDTLS_CERTS_C) && !defined(MBEDTLS_X509_USE_C)
865 #error "MBEDTLS_CERTS_C defined, but not all prerequisites"
866 #endif
867 
868 #if defined(MBEDTLS_X509_CRT_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) )
869 #error "MBEDTLS_X509_CRT_PARSE_C defined, but not all prerequisites"
870 #endif
871 
872 #if defined(MBEDTLS_X509_CRL_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) )
873 #error "MBEDTLS_X509_CRL_PARSE_C defined, but not all prerequisites"
874 #endif
875 
876 #if defined(MBEDTLS_X509_CSR_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) )
877 #error "MBEDTLS_X509_CSR_PARSE_C defined, but not all prerequisites"
878 #endif
879 
880 #if defined(MBEDTLS_X509_CRT_WRITE_C) && ( !defined(MBEDTLS_X509_CREATE_C) )
881 #error "MBEDTLS_X509_CRT_WRITE_C defined, but not all prerequisites"
882 #endif
883 
884 #if defined(MBEDTLS_X509_CSR_WRITE_C) && ( !defined(MBEDTLS_X509_CREATE_C) )
885 #error "MBEDTLS_X509_CSR_WRITE_C defined, but not all prerequisites"
886 #endif
887 
888 #if defined(MBEDTLS_HAVE_INT32) && defined(MBEDTLS_HAVE_INT64)
889 #error "MBEDTLS_HAVE_INT32 and MBEDTLS_HAVE_INT64 cannot be defined simultaneously"
890 #endif /* MBEDTLS_HAVE_INT32 && MBEDTLS_HAVE_INT64 */
891 
892 #if ( defined(MBEDTLS_HAVE_INT32) || defined(MBEDTLS_HAVE_INT64) ) && \
893     defined(MBEDTLS_HAVE_ASM)
894 #error "MBEDTLS_HAVE_INT32/MBEDTLS_HAVE_INT64 and MBEDTLS_HAVE_ASM cannot be defined simultaneously"
895 #endif /* (MBEDTLS_HAVE_INT32 || MBEDTLS_HAVE_INT64) && MBEDTLS_HAVE_ASM */
896 
897 #if defined(MBEDTLS_SSL_PROTO_SSL3)
898 #if defined(MBEDTLS_DEPRECATED_REMOVED)
899 #error "MBEDTLS_SSL_PROTO_SSL3 is deprecated and will be removed in a future version of Mbed TLS"
900 #elif defined(MBEDTLS_DEPRECATED_WARNING)
901 #warning "MBEDTLS_SSL_PROTO_SSL3 is deprecated and will be removed in a future version of Mbed TLS"
902 #endif
903 #endif /* MBEDTLS_SSL_PROTO_SSL3 */
904 
905 #if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO)
906 #if defined(MBEDTLS_DEPRECATED_REMOVED)
907 #error "MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is deprecated and will be removed in a future version of Mbed TLS"
908 #elif defined(MBEDTLS_DEPRECATED_WARNING)
909 #warning "MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is deprecated and will be removed in a future version of Mbed TLS"
910 #endif
911 #endif /* MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO */
912 
913 #if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
914 #if defined(MBEDTLS_DEPRECATED_REMOVED)
915 #error "MBEDTLS_SSL_HW_RECORD_ACCEL is deprecated and will be removed in a future version of Mbed TLS"
916 #elif defined(MBEDTLS_DEPRECATED_WARNING)
917 #warning "MBEDTLS_SSL_HW_RECORD_ACCEL is deprecated and will be removed in a future version of Mbed TLS"
918 #endif /* MBEDTLS_DEPRECATED_REMOVED */
919 #endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
920 
921 #if defined(MBEDTLS_SSL_DTLS_SRTP) && ( !defined(MBEDTLS_SSL_PROTO_DTLS) )
922 #error "MBEDTLS_SSL_DTLS_SRTP defined, but not all prerequisites"
923 #endif
924 
925 #if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH) && ( !defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) )
926 #error "MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH defined, but not all prerequisites"
927 #endif
928 
929 /*
930  * Avoid warning from -pedantic. This is a convenient place for this
931  * workaround since this is included by every single file before the
932  * #if defined(MBEDTLS_xxx_C) that results in empty translation units.
933  */
934 typedef int mbedtls_iso_c_forbids_empty_translation_units;
935 
936 #endif /* MBEDTLS_CHECK_CONFIG_H */
937