1 /*
2 * Common code library for SSL test programs.
3 *
4 * In addition to the functions in this file, there is shared source code
5 * that cannot be compiled separately in "ssl_test_common_source.c".
6 *
7 * Copyright The Mbed TLS Contributors
8 * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
9 */
10
11 #define MBEDTLS_DECLARE_PRIVATE_IDENTIFIERS
12
13 #include "ssl_test_lib.h"
14
15 #if defined(MBEDTLS_TEST_HOOKS)
16 #include "test/threading_helpers.h"
17 #endif
18
19 #if !defined(MBEDTLS_SSL_TEST_IMPOSSIBLE)
20
21 #define ARRAY_LENGTH(x) (sizeof(x)/sizeof(x[0]))
22
my_debug(void * ctx,int level,const char * file,int line,const char * str)23 void my_debug(void *ctx, int level,
24 const char *file, int line,
25 const char *str)
26 {
27 const char *p, *basename;
28
29 /* Extract basename from file */
30 for (p = basename = file; *p != '\0'; p++) {
31 if (*p == '/' || *p == '\\') {
32 basename = p + 1;
33 }
34 }
35
36 mbedtls_fprintf((FILE *) ctx, "%s:%04d: |%d| %s",
37 basename, line, level, str);
38 fflush((FILE *) ctx);
39 }
40
41 #if defined(MBEDTLS_HAVE_TIME)
dummy_constant_time(mbedtls_time_t * time)42 mbedtls_time_t dummy_constant_time(mbedtls_time_t *time)
43 {
44 (void) time;
45 return 0x5af2a056;
46 }
47 #endif
48
49 #if !defined(MBEDTLS_TEST_USE_PSA_CRYPTO_RNG)
dummy_entropy(void * data,unsigned char * output,size_t len)50 static int dummy_entropy(void *data, unsigned char *output, size_t len)
51 {
52 size_t i;
53 int ret;
54 (void) data;
55
56 ret = mbedtls_entropy_func(data, output, len);
57 for (i = 0; i < len; i++) {
58 //replace result with pseudo random
59 output[i] = (unsigned char) rand();
60 }
61 return ret;
62 }
63 #endif
64
rng_init(rng_context_t * rng)65 void rng_init(rng_context_t *rng)
66 {
67 #if defined(MBEDTLS_TEST_USE_PSA_CRYPTO_RNG)
68 (void) rng;
69 psa_crypto_init();
70 #else /* !MBEDTLS_TEST_USE_PSA_CRYPTO_RNG */
71
72 #if defined(MBEDTLS_CTR_DRBG_C)
73 mbedtls_ctr_drbg_init(&rng->drbg);
74 #elif defined(MBEDTLS_HMAC_DRBG_C)
75 mbedtls_hmac_drbg_init(&rng->drbg);
76 #else
77 #error "No DRBG available"
78 #endif
79
80 mbedtls_entropy_init(&rng->entropy);
81 #endif /* !MBEDTLS_TEST_USE_PSA_CRYPTO_RNG */
82 }
83
rng_seed(rng_context_t * rng,int reproducible,const char * pers)84 int rng_seed(rng_context_t *rng, int reproducible, const char *pers)
85 {
86 if (reproducible) {
87 mbedtls_fprintf(stderr,
88 "reproducible mode is not supported.\n");
89 return -1;
90 }
91 #if defined(MBEDTLS_TEST_USE_PSA_CRYPTO_RNG)
92 /* The PSA crypto RNG does its own seeding. */
93 (void) rng;
94 (void) pers;
95 if (reproducible) {
96 mbedtls_fprintf(stderr,
97 "The PSA RNG does not support reproducible mode.\n");
98 return -1;
99 }
100 return 0;
101 #else /* !MBEDTLS_TEST_USE_PSA_CRYPTO_RNG */
102 int (*f_entropy)(void *, unsigned char *, size_t) =
103 (reproducible ? dummy_entropy : mbedtls_entropy_func);
104
105 if (reproducible) {
106 srand(1);
107 }
108
109 #if defined(MBEDTLS_CTR_DRBG_C)
110 int ret = mbedtls_ctr_drbg_seed(&rng->drbg,
111 f_entropy, &rng->entropy,
112 (const unsigned char *) pers,
113 strlen(pers));
114 #elif defined(MBEDTLS_HMAC_DRBG_C)
115 #if defined(PSA_WANT_ALG_SHA_256)
116 const mbedtls_md_type_t md_type = MBEDTLS_MD_SHA256;
117 #elif defined(PSA_WANT_ALG_SHA_512)
118 const mbedtls_md_type_t md_type = MBEDTLS_MD_SHA512;
119 #else
120 #error "No message digest available for HMAC_DRBG"
121 #endif
122 int ret = mbedtls_hmac_drbg_seed(&rng->drbg,
123 mbedtls_md_info_from_type(md_type),
124 f_entropy, &rng->entropy,
125 (const unsigned char *) pers,
126 strlen(pers));
127 #else /* !defined(MBEDTLS_CTR_DRBG_C) && !defined(MBEDTLS_HMAC_DRBG_C) */
128 #error "No DRBG available"
129 #endif /* !defined(MBEDTLS_CTR_DRBG_C) && !defined(MBEDTLS_HMAC_DRBG_C) */
130
131 if (ret != 0) {
132 mbedtls_printf(" failed\n ! mbedtls_ctr_drbg_seed returned -0x%x\n",
133 (unsigned int) -ret);
134 return ret;
135 }
136 #endif /* !MBEDTLS_TEST_USE_PSA_CRYPTO_RNG */
137
138 return 0;
139 }
140
rng_free(rng_context_t * rng)141 void rng_free(rng_context_t *rng)
142 {
143 #if defined(MBEDTLS_TEST_USE_PSA_CRYPTO_RNG)
144 (void) rng;
145 /* Deinitialize the PSA crypto subsystem. This deactivates all PSA APIs.
146 * This is ok because none of our applications try to do any crypto after
147 * deinitializing the RNG. */
148 mbedtls_psa_crypto_free();
149 #else /* !MBEDTLS_TEST_USE_PSA_CRYPTO_RNG */
150
151 #if defined(MBEDTLS_CTR_DRBG_C)
152 mbedtls_ctr_drbg_free(&rng->drbg);
153 #elif defined(MBEDTLS_HMAC_DRBG_C)
154 mbedtls_hmac_drbg_free(&rng->drbg);
155 #else
156 #error "No DRBG available"
157 #endif
158
159 mbedtls_entropy_free(&rng->entropy);
160 #endif /* !MBEDTLS_TEST_USE_PSA_CRYPTO_RNG */
161 }
162
rng_get(void * p_rng,unsigned char * output,size_t output_len)163 int rng_get(void *p_rng, unsigned char *output, size_t output_len)
164 {
165 #if defined(MBEDTLS_TEST_USE_PSA_CRYPTO_RNG)
166 (void) p_rng;
167 return mbedtls_psa_get_random(MBEDTLS_PSA_RANDOM_STATE,
168 output, output_len);
169 #else /* !MBEDTLS_TEST_USE_PSA_CRYPTO_RNG */
170 rng_context_t *rng = p_rng;
171
172 #if defined(MBEDTLS_CTR_DRBG_C)
173 return mbedtls_ctr_drbg_random(&rng->drbg, output, output_len);
174 #elif defined(MBEDTLS_HMAC_DRBG_C)
175 return mbedtls_hmac_drbg_random(&rng->drbg, output, output_len);
176 #else
177 #error "No DRBG available"
178 #endif
179
180 #endif /* !MBEDTLS_TEST_USE_PSA_CRYPTO_RNG */
181 }
182
key_opaque_alg_parse(const char * arg,const char ** alg1,const char ** alg2)183 int key_opaque_alg_parse(const char *arg, const char **alg1, const char **alg2)
184 {
185 char *separator;
186 if ((separator = strchr(arg, ',')) == NULL) {
187 return 1;
188 }
189 *separator = '\0';
190
191 *alg1 = arg;
192 *alg2 = separator + 1;
193
194 if (strcmp(*alg1, "rsa-sign-pkcs1") != 0 &&
195 strcmp(*alg1, "rsa-sign-pss") != 0 &&
196 strcmp(*alg1, "rsa-sign-pss-sha256") != 0 &&
197 strcmp(*alg1, "rsa-sign-pss-sha384") != 0 &&
198 strcmp(*alg1, "rsa-sign-pss-sha512") != 0 &&
199 strcmp(*alg1, "ecdsa-sign") != 0 &&
200 strcmp(*alg1, "ecdh") != 0) {
201 return 1;
202 }
203
204 if (strcmp(*alg2, "rsa-sign-pkcs1") != 0 &&
205 strcmp(*alg2, "rsa-sign-pss") != 0 &&
206 strcmp(*alg1, "rsa-sign-pss-sha256") != 0 &&
207 strcmp(*alg1, "rsa-sign-pss-sha384") != 0 &&
208 strcmp(*alg1, "rsa-sign-pss-sha512") != 0 &&
209 strcmp(*alg2, "ecdsa-sign") != 0 &&
210 strcmp(*alg2, "ecdh") != 0 &&
211 strcmp(*alg2, "none") != 0) {
212 return 1;
213 }
214
215 return 0;
216 }
217
key_opaque_set_alg_usage(const char * alg1,const char * alg2,psa_algorithm_t * psa_alg1,psa_algorithm_t * psa_alg2,psa_key_usage_t * usage,mbedtls_pk_type_t key_type)218 int key_opaque_set_alg_usage(const char *alg1, const char *alg2,
219 psa_algorithm_t *psa_alg1,
220 psa_algorithm_t *psa_alg2,
221 psa_key_usage_t *usage,
222 mbedtls_pk_type_t key_type)
223 {
224 if (strcmp(alg1, "none") != 0) {
225 const char *algs[] = { alg1, alg2 };
226 psa_algorithm_t *psa_algs[] = { psa_alg1, psa_alg2 };
227
228 for (int i = 0; i < 2; i++) {
229 if (strcmp(algs[i], "rsa-sign-pkcs1") == 0) {
230 *psa_algs[i] = PSA_ALG_RSA_PKCS1V15_SIGN(PSA_ALG_ANY_HASH);
231 *usage |= PSA_KEY_USAGE_SIGN_HASH;
232 } else if (strcmp(algs[i], "rsa-sign-pss") == 0) {
233 *psa_algs[i] = PSA_ALG_RSA_PSS(PSA_ALG_ANY_HASH);
234 *usage |= PSA_KEY_USAGE_SIGN_HASH;
235 } else if (strcmp(algs[i], "rsa-sign-pss-sha256") == 0) {
236 *psa_algs[i] = PSA_ALG_RSA_PSS(PSA_ALG_SHA_256);
237 *usage |= PSA_KEY_USAGE_SIGN_HASH;
238 } else if (strcmp(algs[i], "rsa-sign-pss-sha384") == 0) {
239 *psa_algs[i] = PSA_ALG_RSA_PSS(PSA_ALG_SHA_384);
240 *usage |= PSA_KEY_USAGE_SIGN_HASH;
241 } else if (strcmp(algs[i], "rsa-sign-pss-sha512") == 0) {
242 *psa_algs[i] = PSA_ALG_RSA_PSS(PSA_ALG_SHA_512);
243 *usage |= PSA_KEY_USAGE_SIGN_HASH;
244 } else if (strcmp(algs[i], "ecdsa-sign") == 0) {
245 *psa_algs[i] = PSA_ALG_ECDSA(PSA_ALG_ANY_HASH);
246 *usage |= PSA_KEY_USAGE_SIGN_HASH;
247 } else if (strcmp(algs[i], "ecdh") == 0) {
248 *psa_algs[i] = PSA_ALG_ECDH;
249 *usage |= PSA_KEY_USAGE_DERIVE;
250 } else if (strcmp(algs[i], "none") == 0) {
251 *psa_algs[i] = PSA_ALG_NONE;
252 }
253 }
254 } else {
255 if (key_type == MBEDTLS_PK_ECKEY) {
256 *psa_alg1 = PSA_ALG_ECDSA(PSA_ALG_ANY_HASH);
257 *psa_alg2 = PSA_ALG_ECDH;
258 *usage = PSA_KEY_USAGE_SIGN_HASH | PSA_KEY_USAGE_DERIVE;
259 } else if (key_type == MBEDTLS_PK_RSA) {
260 *psa_alg1 = PSA_ALG_RSA_PKCS1V15_SIGN(PSA_ALG_ANY_HASH);
261 *psa_alg2 = PSA_ALG_RSA_PSS(PSA_ALG_ANY_HASH);
262 *usage = PSA_KEY_USAGE_SIGN_HASH;
263 } else {
264 return 1;
265 }
266 }
267
268 return 0;
269 }
270
271 #if defined(MBEDTLS_PK_C)
pk_wrap_as_opaque(mbedtls_pk_context * pk,psa_algorithm_t psa_alg,psa_algorithm_t psa_alg2,psa_key_usage_t psa_usage,mbedtls_svc_key_id_t * key_id)272 int pk_wrap_as_opaque(mbedtls_pk_context *pk, psa_algorithm_t psa_alg, psa_algorithm_t psa_alg2,
273 psa_key_usage_t psa_usage, mbedtls_svc_key_id_t *key_id)
274 {
275 int ret;
276 psa_key_attributes_t key_attr = PSA_KEY_ATTRIBUTES_INIT;
277
278 ret = mbedtls_pk_get_psa_attributes(pk, PSA_KEY_USAGE_SIGN_HASH, &key_attr);
279 if (ret != 0) {
280 return ret;
281 }
282 psa_set_key_usage_flags(&key_attr, psa_usage);
283 psa_set_key_algorithm(&key_attr, psa_alg);
284 if (psa_alg2 != PSA_ALG_NONE) {
285 psa_set_key_enrollment_algorithm(&key_attr, psa_alg2);
286 }
287 ret = mbedtls_pk_import_into_psa(pk, &key_attr, key_id);
288 if (ret != 0) {
289 return ret;
290 }
291 mbedtls_pk_free(pk);
292 mbedtls_pk_init(pk);
293 ret = mbedtls_pk_wrap_psa(pk, *key_id);
294 if (ret != 0) {
295 return ret;
296 }
297
298 return 0;
299 }
300 #endif /* MBEDTLS_PK_C */
301
302 #if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
ca_callback(void * data,mbedtls_x509_crt const * child,mbedtls_x509_crt ** candidates)303 int ca_callback(void *data, mbedtls_x509_crt const *child,
304 mbedtls_x509_crt **candidates)
305 {
306 int ret = 0;
307 mbedtls_x509_crt *ca = (mbedtls_x509_crt *) data;
308 mbedtls_x509_crt *first;
309
310 /* This is a test-only implementation of the CA callback
311 * which always returns the entire list of trusted certificates.
312 * Production implementations managing a large number of CAs
313 * should use an efficient presentation and lookup for the
314 * set of trusted certificates (such as a hashtable) and only
315 * return those trusted certificates which satisfy basic
316 * parental checks, such as the matching of child `Issuer`
317 * and parent `Subject` field or matching key identifiers. */
318 ((void) child);
319
320 first = mbedtls_calloc(1, sizeof(mbedtls_x509_crt));
321 if (first == NULL) {
322 ret = -1;
323 goto exit;
324 }
325 mbedtls_x509_crt_init(first);
326
327 if (mbedtls_x509_crt_parse_der(first, ca->raw.p, ca->raw.len) != 0) {
328 ret = -1;
329 goto exit;
330 }
331
332 while (ca->next != NULL) {
333 ca = ca->next;
334 if (mbedtls_x509_crt_parse_der(first, ca->raw.p, ca->raw.len) != 0) {
335 ret = -1;
336 goto exit;
337 }
338 }
339
340 exit:
341
342 if (ret != 0) {
343 mbedtls_x509_crt_free(first);
344 mbedtls_free(first);
345 first = NULL;
346 }
347
348 *candidates = first;
349 return ret;
350 }
351 #endif /* MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK */
352
delayed_recv(void * ctx,unsigned char * buf,size_t len)353 int delayed_recv(void *ctx, unsigned char *buf, size_t len)
354 {
355 static int first_try = 1;
356 int ret;
357
358 if (first_try) {
359 first_try = 0;
360 return MBEDTLS_ERR_SSL_WANT_READ;
361 }
362
363 ret = mbedtls_net_recv(ctx, buf, len);
364 if (ret != MBEDTLS_ERR_SSL_WANT_READ) {
365 first_try = 1; /* Next call will be a new operation */
366 }
367 return ret;
368 }
369
delayed_send(void * ctx,const unsigned char * buf,size_t len)370 int delayed_send(void *ctx, const unsigned char *buf, size_t len)
371 {
372 static int first_try = 1;
373 int ret;
374
375 if (first_try) {
376 first_try = 0;
377 return MBEDTLS_ERR_SSL_WANT_WRITE;
378 }
379
380 ret = mbedtls_net_send(ctx, buf, len);
381 if (ret != MBEDTLS_ERR_SSL_WANT_WRITE) {
382 first_try = 1; /* Next call will be a new operation */
383 }
384 return ret;
385 }
386
387 #if !defined(MBEDTLS_TIMING_C)
idle(mbedtls_net_context * fd,int idle_reason)388 int idle(mbedtls_net_context *fd,
389 int idle_reason)
390 #else
391 int idle(mbedtls_net_context *fd,
392 mbedtls_timing_delay_context *timer,
393 int idle_reason)
394 #endif
395 {
396 int ret;
397 int poll_type = 0;
398
399 if (idle_reason == MBEDTLS_ERR_SSL_WANT_WRITE) {
400 poll_type = MBEDTLS_NET_POLL_WRITE;
401 } else if (idle_reason == MBEDTLS_ERR_SSL_WANT_READ) {
402 poll_type = MBEDTLS_NET_POLL_READ;
403 }
404 #if !defined(MBEDTLS_TIMING_C)
405 else {
406 return 0;
407 }
408 #endif
409
410 while (1) {
411 /* Check if timer has expired */
412 #if defined(MBEDTLS_TIMING_C)
413 if (timer != NULL &&
414 mbedtls_timing_get_delay(timer) == 2) {
415 break;
416 }
417 #endif /* MBEDTLS_TIMING_C */
418
419 /* Check if underlying transport became available */
420 if (poll_type != 0) {
421 ret = mbedtls_net_poll(fd, poll_type, 0);
422 if (ret < 0) {
423 return ret;
424 }
425 if (ret == poll_type) {
426 break;
427 }
428 }
429 }
430
431 return 0;
432 }
433
434 #if defined(MBEDTLS_TEST_HOOKS)
435
test_hooks_init(void)436 void test_hooks_init(void)
437 {
438 mbedtls_test_info_reset();
439
440 #if defined(MBEDTLS_TEST_MUTEX_USAGE)
441 mbedtls_test_mutex_usage_init();
442 #endif
443 }
444
test_hooks_failure_detected(void)445 int test_hooks_failure_detected(void)
446 {
447 #if defined(MBEDTLS_TEST_MUTEX_USAGE)
448 /* Errors are reported via mbedtls_test_info. */
449 mbedtls_test_mutex_usage_check();
450 #endif
451
452 if (mbedtls_test_get_result() != MBEDTLS_TEST_RESULT_SUCCESS) {
453 return 1;
454 }
455 return 0;
456 }
457
test_hooks_free(void)458 void test_hooks_free(void)
459 {
460 #if defined(MBEDTLS_TEST_MUTEX_USAGE)
461 mbedtls_test_mutex_usage_end();
462 #endif
463 }
464
465 #endif /* MBEDTLS_TEST_HOOKS */
466
467 static const struct {
468 uint16_t tls_id;
469 const char *name;
470 uint8_t is_supported;
471 } tls_id_group_name_table[] =
472 {
473 #if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_521)
474 { MBEDTLS_SSL_IANA_TLS_GROUP_SECP521R1, "secp521r1", 1 },
475 #else
476 { MBEDTLS_SSL_IANA_TLS_GROUP_SECP521R1, "secp521r1", 0 },
477 #endif
478 #if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_512)
479 { MBEDTLS_SSL_IANA_TLS_GROUP_BP512R1, "brainpoolP512r1", 1 },
480 #else
481 { MBEDTLS_SSL_IANA_TLS_GROUP_BP512R1, "brainpoolP512r1", 0 },
482 #endif
483 #if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_384)
484 { MBEDTLS_SSL_IANA_TLS_GROUP_SECP384R1, "secp384r1", 1 },
485 #else
486 { MBEDTLS_SSL_IANA_TLS_GROUP_SECP384R1, "secp384r1", 0 },
487 #endif
488 #if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_384)
489 { MBEDTLS_SSL_IANA_TLS_GROUP_BP384R1, "brainpoolP384r1", 1 },
490 #else
491 { MBEDTLS_SSL_IANA_TLS_GROUP_BP384R1, "brainpoolP384r1", 0 },
492 #endif
493 #if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || defined(PSA_WANT_ECC_SECP_R1_256)
494 { MBEDTLS_SSL_IANA_TLS_GROUP_SECP256R1, "secp256r1", 1 },
495 #else
496 { MBEDTLS_SSL_IANA_TLS_GROUP_SECP256R1, "secp256r1", 0 },
497 #endif
498 #if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) || defined(PSA_WANT_ECC_SECP_K1_256)
499 { MBEDTLS_SSL_IANA_TLS_GROUP_SECP256K1, "secp256k1", 1 },
500 #else
501 { MBEDTLS_SSL_IANA_TLS_GROUP_SECP256K1, "secp256k1", 0 },
502 #endif
503 #if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) || defined(PSA_WANT_ECC_BRAINPOOL_P_R1_256)
504 { MBEDTLS_SSL_IANA_TLS_GROUP_BP256R1, "brainpoolP256r1", 1 },
505 #else
506 { MBEDTLS_SSL_IANA_TLS_GROUP_BP256R1, "brainpoolP256r1", 0 },
507 #endif
508 #if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) || defined(PSA_WANT_ECC_MONTGOMERY_255)
509 { MBEDTLS_SSL_IANA_TLS_GROUP_X25519, "x25519", 1 },
510 #else
511 { MBEDTLS_SSL_IANA_TLS_GROUP_X25519, "x25519", 0 },
512 #endif
513 #if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED) || defined(PSA_WANT_ECC_MONTGOMERY_448)
514 { MBEDTLS_SSL_IANA_TLS_GROUP_X448, "x448", 1 },
515 #else
516 { MBEDTLS_SSL_IANA_TLS_GROUP_X448, "x448", 0 },
517 #endif
518 #if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_EPHEMERAL_ENABLED) && \
519 defined(PSA_WANT_ALG_FFDH)
520 #if defined(PSA_WANT_DH_RFC7919_2048)
521 { MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE2048, "ffdhe2048", 1 },
522 #else /* PSA_WANT_DH_RFC7919_2048 */
523 { MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE2048, "ffdhe2048", 0 },
524 #endif /* PSA_WANT_DH_RFC7919_2048 */
525 #if defined(PSA_WANT_DH_RFC7919_3072)
526 { MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE3072, "ffdhe3072", 1 },
527 #else /* PSA_WANT_DH_RFC7919_3072 */
528 { MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE3072, "ffdhe3072", 0 },
529 #endif /* PSA_WANT_DH_RFC7919_3072 */
530 #if defined(PSA_WANT_DH_RFC7919_4096)
531 { MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE4096, "ffdhe4096", 1 },
532 #else /* PSA_WANT_DH_RFC7919_4096 */
533 { MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE4096, "ffdhe4096", 0 },
534 #endif /* PSA_WANT_DH_RFC7919_4096 */
535 #if defined(PSA_WANT_DH_RFC7919_6144)
536 { MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE6144, "ffdhe6144", 1 },
537 #else /* PSA_WANT_DH_RFC7919_6144 */
538 { MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE6144, "ffdhe6144", 0 },
539 #endif /* PSA_WANT_DH_RFC7919_6144 */
540 #if defined(PSA_WANT_DH_RFC7919_8192)
541 { MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE8192, "ffdhe8192", 1 },
542 #else /* PSA_WANT_DH_RFC7919_8192 */
543 { MBEDTLS_SSL_IANA_TLS_GROUP_FFDHE8192, "ffdhe8192", 0 },
544 #endif /* PSA_WANT_DH_RFC7919_8192 */
545 #endif /* MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_EPHEMERAL_ENABLED && PSA_WANT_ALG_FFDH */
546 { 0, NULL, 0 },
547 };
548
mbedtls_ssl_get_curve_tls_id_from_name(const char * name)549 static uint16_t mbedtls_ssl_get_curve_tls_id_from_name(const char *name)
550 {
551 if (name == NULL) {
552 return 0;
553 }
554
555 for (int i = 0; tls_id_group_name_table[i].tls_id != 0; i++) {
556 if (strcmp(tls_id_group_name_table[i].name, name) == 0) {
557 return tls_id_group_name_table[i].tls_id;
558 }
559 }
560
561 return 0;
562 }
563
mbedtls_ssl_print_supported_groups_list(void)564 static void mbedtls_ssl_print_supported_groups_list(void)
565 {
566 for (int i = 0; tls_id_group_name_table[i].tls_id != 0; i++) {
567 if (tls_id_group_name_table[i].is_supported == 1) {
568 mbedtls_printf("%s ", tls_id_group_name_table[i].name);
569 }
570 }
571 }
572
parse_groups(const char * groups,uint16_t * group_list,size_t group_list_len)573 int parse_groups(const char *groups, uint16_t *group_list, size_t group_list_len)
574 {
575 char *p = (char *) groups;
576 char *q = NULL;
577 size_t i = 0;
578
579 if (strcmp(p, "none") == 0) {
580 group_list[0] = 0;
581 } else if (strcmp(p, "default") != 0) {
582 /* Leave room for a final NULL in group list */
583 while (i < group_list_len - 1 && *p != '\0') {
584 uint16_t curve_tls_id;
585 q = p;
586
587 /* Terminate the current string */
588 while (*p != ',' && *p != '\0') {
589 p++;
590 }
591 if (*p == ',') {
592 *p++ = '\0';
593 }
594
595 if ((curve_tls_id = mbedtls_ssl_get_curve_tls_id_from_name(q)) != 0) {
596 group_list[i++] = curve_tls_id;
597 } else {
598 mbedtls_printf("unknown group %s\n", q);
599 mbedtls_printf("supported groups: ");
600 mbedtls_ssl_print_supported_groups_list();
601 mbedtls_printf("\n");
602 return -1;
603 }
604 }
605
606 mbedtls_printf("Number of groups: %u\n", (unsigned int) i);
607
608 if (i == group_list_len - 1 && *p != '\0') {
609 mbedtls_printf("groups list too long, maximum %u",
610 (unsigned int) (group_list_len - 1));
611 return -1;
612 }
613
614 group_list[i] = 0;
615 }
616
617 return 0;
618 }
619
620 #endif /* !defined(MBEDTLS_SSL_TEST_IMPOSSIBLE) */
621