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mbedtls/programs/ssl/ssl_test_common_source.c
Elena Uziunaite 9fc5be09cb Replace MBEDTLS_MD_CAN_SHA1 with PSA_WANT_ALG_SHA_1 
Signed-off-by: Elena Uziunaite <elena.uziunaite@arm.com>
2024-09-04 18:12:59 +01:00

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C
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/*
* Common source code for SSL test programs. This file is included by
* both ssl_client2.c and ssl_server2.c and is intended for source
* code that is textually identical in both programs, but that cannot be
* compiled separately because it refers to types or macros that are
* different in the two programs, or because it would have an incomplete
* type.
*
* This file is meant to be #include'd and cannot be compiled separately.
*
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
*/
static void eap_tls_key_derivation(void *p_expkey,
mbedtls_ssl_key_export_type secret_type,
const unsigned char *secret,
size_t secret_len,
const unsigned char client_random[32],
const unsigned char server_random[32],
mbedtls_tls_prf_types tls_prf_type)
{
eap_tls_keys *keys = (eap_tls_keys *) p_expkey;
/* We're only interested in the TLS 1.2 master secret */
if (secret_type != MBEDTLS_SSL_KEY_EXPORT_TLS12_MASTER_SECRET) {
return;
}
if (secret_len != sizeof(keys->master_secret)) {
return;
}
memcpy(keys->master_secret, secret, sizeof(keys->master_secret));
memcpy(keys->randbytes, client_random, 32);
memcpy(keys->randbytes + 32, server_random, 32);
keys->tls_prf_type = tls_prf_type;
}
static void nss_keylog_export(void *p_expkey,
mbedtls_ssl_key_export_type secret_type,
const unsigned char *secret,
size_t secret_len,
const unsigned char client_random[32],
const unsigned char server_random[32],
mbedtls_tls_prf_types tls_prf_type)
{
char nss_keylog_line[200];
size_t const client_random_len = 32;
size_t len = 0;
size_t j;
/* We're only interested in the TLS 1.2 master secret */
if (secret_type != MBEDTLS_SSL_KEY_EXPORT_TLS12_MASTER_SECRET) {
return;
}
((void) p_expkey);
((void) server_random);
((void) tls_prf_type);
len += sprintf(nss_keylog_line + len,
"%s", "CLIENT_RANDOM ");
for (j = 0; j < client_random_len; j++) {
len += sprintf(nss_keylog_line + len,
"%02x", client_random[j]);
}
len += sprintf(nss_keylog_line + len, " ");
for (j = 0; j < secret_len; j++) {
len += sprintf(nss_keylog_line + len,
"%02x", secret[j]);
}
len += sprintf(nss_keylog_line + len, "\n");
nss_keylog_line[len] = '\0';
mbedtls_printf("\n");
mbedtls_printf("---------------- NSS KEYLOG -----------------\n");
mbedtls_printf("%s", nss_keylog_line);
mbedtls_printf("---------------------------------------------\n");
if (opt.nss_keylog_file != NULL) {
FILE *f;
if ((f = fopen(opt.nss_keylog_file, "a")) == NULL) {
goto exit;
}
/* Ensure no stdio buffering of secrets, as such buffers cannot be
* wiped. */
mbedtls_setbuf(f, NULL);
if (fwrite(nss_keylog_line, 1, len, f) != len) {
fclose(f);
goto exit;
}
fclose(f);
}
exit:
mbedtls_platform_zeroize(nss_keylog_line,
sizeof(nss_keylog_line));
}
#if defined(MBEDTLS_SSL_DTLS_SRTP)
static void dtls_srtp_key_derivation(void *p_expkey,
mbedtls_ssl_key_export_type secret_type,
const unsigned char *secret,
size_t secret_len,
const unsigned char client_random[32],
const unsigned char server_random[32],
mbedtls_tls_prf_types tls_prf_type)
{
dtls_srtp_keys *keys = (dtls_srtp_keys *) p_expkey;
/* We're only interested in the TLS 1.2 master secret */
if (secret_type != MBEDTLS_SSL_KEY_EXPORT_TLS12_MASTER_SECRET) {
return;
}
if (secret_len != sizeof(keys->master_secret)) {
return;
}
memcpy(keys->master_secret, secret, sizeof(keys->master_secret));
memcpy(keys->randbytes, client_random, 32);
memcpy(keys->randbytes + 32, server_random, 32);
keys->tls_prf_type = tls_prf_type;
}
#endif /* MBEDTLS_SSL_DTLS_SRTP */
static int ssl_check_record(mbedtls_ssl_context const *ssl,
unsigned char const *buf, size_t len)
{
int my_ret = 0, ret_cr1, ret_cr2;
unsigned char *tmp_buf;
/* Record checking may modify the input buffer,
* so make a copy. */
tmp_buf = mbedtls_calloc(1, len);
if (tmp_buf == NULL) {
return MBEDTLS_ERR_SSL_ALLOC_FAILED;
}
memcpy(tmp_buf, buf, len);
ret_cr1 = mbedtls_ssl_check_record(ssl, tmp_buf, len);
if (ret_cr1 != MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE) {
/* Test-only: Make sure that mbedtls_ssl_check_record()
* doesn't alter state. */
memcpy(tmp_buf, buf, len); /* Restore buffer */
ret_cr2 = mbedtls_ssl_check_record(ssl, tmp_buf, len);
if (ret_cr2 != ret_cr1) {
mbedtls_printf("mbedtls_ssl_check_record() returned inconsistent results.\n");
my_ret = -1;
goto cleanup;
}
switch (ret_cr1) {
case 0:
break;
case MBEDTLS_ERR_SSL_INVALID_RECORD:
if (opt.debug_level > 1) {
mbedtls_printf("mbedtls_ssl_check_record() detected invalid record.\n");
}
break;
case MBEDTLS_ERR_SSL_INVALID_MAC:
if (opt.debug_level > 1) {
mbedtls_printf("mbedtls_ssl_check_record() detected unauthentic record.\n");
}
break;
case MBEDTLS_ERR_SSL_UNEXPECTED_RECORD:
if (opt.debug_level > 1) {
mbedtls_printf("mbedtls_ssl_check_record() detected unexpected record.\n");
}
break;
default:
mbedtls_printf("mbedtls_ssl_check_record() failed fatally with -%#04x.\n",
(unsigned int) -ret_cr1);
my_ret = -1;
goto cleanup;
}
/* Regardless of the outcome, forward the record to the stack. */
}
cleanup:
mbedtls_free(tmp_buf);
return my_ret;
}
static int recv_cb(void *ctx, unsigned char *buf, size_t len)
{
io_ctx_t *io_ctx = (io_ctx_t *) ctx;
size_t recv_len;
int ret;
if (opt.nbio == 2) {
ret = delayed_recv(io_ctx->net, buf, len);
} else {
ret = mbedtls_net_recv(io_ctx->net, buf, len);
}
if (ret < 0) {
return ret;
}
recv_len = (size_t) ret;
if (opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
/* Here's the place to do any datagram/record checking
* in between receiving the packet from the underlying
* transport and passing it on to the TLS stack. */
if (ssl_check_record(io_ctx->ssl, buf, recv_len) != 0) {
return -1;
}
}
return (int) recv_len;
}
static int recv_timeout_cb(void *ctx, unsigned char *buf, size_t len,
uint32_t timeout)
{
io_ctx_t *io_ctx = (io_ctx_t *) ctx;
int ret;
size_t recv_len;
ret = mbedtls_net_recv_timeout(io_ctx->net, buf, len, timeout);
if (ret < 0) {
return ret;
}
recv_len = (size_t) ret;
if (opt.transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
/* Here's the place to do any datagram/record checking
* in between receiving the packet from the underlying
* transport and passing it on to the TLS stack. */
if (ssl_check_record(io_ctx->ssl, buf, recv_len) != 0) {
return -1;
}
}
return (int) recv_len;
}
static int send_cb(void *ctx, unsigned char const *buf, size_t len)
{
io_ctx_t *io_ctx = (io_ctx_t *) ctx;
if (opt.nbio == 2) {
return delayed_send(io_ctx->net, buf, len);
}
return mbedtls_net_send(io_ctx->net, buf, len);
}
#if defined(MBEDTLS_X509_CRT_PARSE_C)
#if defined(MBEDTLS_PK_CAN_ECDSA_SOME) && defined(MBEDTLS_RSA_C)
#if defined(MBEDTLS_SSL_PROTO_TLS1_3)
/*
* When GnuTLS/Openssl server is configured in TLS 1.2 mode with a certificate
* declaring an RSA public key and Mbed TLS is configured in hybrid mode, if
* `rsa_pss_rsae_*` algorithms are before `rsa_pkcs1_*` ones in this list then
* the GnuTLS/Openssl server chooses an `rsa_pss_rsae_*` signature algorithm
* for its signature in the key exchange message. As Mbed TLS 1.2 does not
* support them, the handshake fails.
*/
#define MBEDTLS_SSL_SIG_ALG(hash) ((hash << 8) | MBEDTLS_SSL_SIG_ECDSA), \
((hash << 8) | MBEDTLS_SSL_SIG_RSA), \
(0x800 | hash),
#else
#define MBEDTLS_SSL_SIG_ALG(hash) ((hash << 8) | MBEDTLS_SSL_SIG_ECDSA), \
((hash << 8) | MBEDTLS_SSL_SIG_RSA),
#endif
#elif defined(MBEDTLS_PK_CAN_ECDSA_SOME)
#define MBEDTLS_SSL_SIG_ALG(hash) ((hash << 8) | MBEDTLS_SSL_SIG_ECDSA),
#elif defined(MBEDTLS_RSA_C)
#if defined(MBEDTLS_SSL_PROTO_TLS1_3)
/* See above */
#define MBEDTLS_SSL_SIG_ALG(hash) ((hash << 8) | MBEDTLS_SSL_SIG_RSA), \
(0x800 | hash),
#else
#define MBEDTLS_SSL_SIG_ALG(hash) ((hash << 8) | MBEDTLS_SSL_SIG_RSA),
#endif
#else
#define MBEDTLS_SSL_SIG_ALG(hash)
#endif
uint16_t ssl_sig_algs_for_test[] = {
#if defined(PSA_WANT_ALG_SHA_512)
MBEDTLS_SSL_SIG_ALG(MBEDTLS_SSL_HASH_SHA512)
#endif
#if defined(PSA_WANT_ALG_SHA_384)
MBEDTLS_SSL_SIG_ALG(MBEDTLS_SSL_HASH_SHA384)
#endif
#if defined(PSA_WANT_ALG_SHA_256)
MBEDTLS_SSL_SIG_ALG(MBEDTLS_SSL_HASH_SHA256)
#endif
#if defined(PSA_WANT_ALG_SHA_224)
MBEDTLS_SSL_SIG_ALG(MBEDTLS_SSL_HASH_SHA224)
#endif
#if defined(MBEDTLS_RSA_C) && defined(PSA_WANT_ALG_SHA_256)
MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA256,
#endif /* MBEDTLS_RSA_C && PSA_WANT_ALG_SHA_256 */
#if defined(PSA_WANT_ALG_SHA_1)
/* Allow SHA-1 as we use it extensively in tests. */
MBEDTLS_SSL_SIG_ALG(MBEDTLS_SSL_HASH_SHA1)
#endif
MBEDTLS_TLS1_3_SIG_NONE
};
#endif /* MBEDTLS_X509_CRT_PARSE_C */
#if defined(MBEDTLS_X509_CRT_PARSE_C)
/** Functionally equivalent to mbedtls_x509_crt_verify_info, see that function
* for more info.
*/
static int x509_crt_verify_info(char *buf, size_t size, const char *prefix,
uint32_t flags)
{
#if !defined(MBEDTLS_X509_REMOVE_INFO)
return mbedtls_x509_crt_verify_info(buf, size, prefix, flags);
#else /* !MBEDTLS_X509_REMOVE_INFO */
int ret;
char *p = buf;
size_t n = size;
#define X509_CRT_ERROR_INFO(err, err_str, info) \
if ((flags & err) != 0) \
{ \
ret = mbedtls_snprintf(p, n, "%s%s\n", prefix, info); \
MBEDTLS_X509_SAFE_SNPRINTF; \
flags ^= err; \
}
MBEDTLS_X509_CRT_ERROR_INFO_LIST
#undef X509_CRT_ERROR_INFO
if (flags != 0) {
ret = mbedtls_snprintf(p, n, "%sUnknown reason "
"(this should not happen)\n", prefix);
MBEDTLS_X509_SAFE_SNPRINTF;
}
return (int) (size - n);
#endif /* MBEDTLS_X509_REMOVE_INFO */
}
#endif /* MBEDTLS_X509_CRT_PARSE_C */
#if defined(MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED)
static void mbedtls_print_supported_sig_algs(void)
{
mbedtls_printf("supported signature algorithms:\n");
mbedtls_printf("\trsa_pkcs1_sha256 ");
mbedtls_printf("rsa_pkcs1_sha384 ");
mbedtls_printf("rsa_pkcs1_sha512\n");
mbedtls_printf("\tecdsa_secp256r1_sha256 ");
mbedtls_printf("ecdsa_secp384r1_sha384 ");
mbedtls_printf("ecdsa_secp521r1_sha512\n");
mbedtls_printf("\trsa_pss_rsae_sha256 ");
mbedtls_printf("rsa_pss_rsae_sha384 ");
mbedtls_printf("rsa_pss_rsae_sha512\n");
mbedtls_printf("\trsa_pss_pss_sha256 ");
mbedtls_printf("rsa_pss_pss_sha384 ");
mbedtls_printf("rsa_pss_pss_sha512\n");
mbedtls_printf("\ted25519 ");
mbedtls_printf("ed448 ");
mbedtls_printf("rsa_pkcs1_sha1 ");
mbedtls_printf("ecdsa_sha1\n");
mbedtls_printf("\n");
}
#endif /* MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED */
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