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Diffstat (limited to 'thirdparty/mbedtls/library/ssl_tls.c')
-rw-r--r--thirdparty/mbedtls/library/ssl_tls.c137
1 files changed, 109 insertions, 28 deletions
diff --git a/thirdparty/mbedtls/library/ssl_tls.c b/thirdparty/mbedtls/library/ssl_tls.c
index 2e6469de83..70196a4861 100644
--- a/thirdparty/mbedtls/library/ssl_tls.c
+++ b/thirdparty/mbedtls/library/ssl_tls.c
@@ -29,13 +29,7 @@
#if defined(MBEDTLS_SSL_TLS_C)
-#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc calloc
-#define mbedtls_free free
-#endif
#include "mbedtls/ssl.h"
#include "mbedtls/ssl_internal.h"
@@ -245,6 +239,7 @@ int mbedtls_ssl_session_copy( mbedtls_ssl_session *dst,
}
#if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
+MBEDTLS_CHECK_RETURN_CRITICAL
static int resize_buffer( unsigned char **buffer, size_t len_new, size_t *len_old )
{
unsigned char* resized_buffer = mbedtls_calloc( 1, len_new );
@@ -337,6 +332,7 @@ static void handle_buffer_resizing( mbedtls_ssl_context *ssl, int downsizing,
* Key material generation
*/
#if defined(MBEDTLS_SSL_PROTO_SSL3)
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl3_prf( const unsigned char *secret, size_t slen,
const char *label,
const unsigned char *random, size_t rlen,
@@ -398,6 +394,7 @@ exit:
#endif /* MBEDTLS_SSL_PROTO_SSL3 */
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
+MBEDTLS_CHECK_RETURN_CRITICAL
static int tls1_prf( const unsigned char *secret, size_t slen,
const char *label,
const unsigned char *random, size_t rlen,
@@ -605,6 +602,7 @@ static psa_status_t setup_psa_key_derivation( psa_key_derivation_operation_t* de
return( PSA_SUCCESS );
}
+MBEDTLS_CHECK_RETURN_CRITICAL
static int tls_prf_generic( mbedtls_md_type_t md_type,
const unsigned char *secret, size_t slen,
const char *label,
@@ -679,6 +677,7 @@ static int tls_prf_generic( mbedtls_md_type_t md_type,
#else /* MBEDTLS_USE_PSA_CRYPTO */
+MBEDTLS_CHECK_RETURN_CRITICAL
static int tls_prf_generic( mbedtls_md_type_t md_type,
const unsigned char *secret, size_t slen,
const char *label,
@@ -761,7 +760,9 @@ static int tls_prf_generic( mbedtls_md_type_t md_type,
exit:
mbedtls_md_free( &md_ctx );
- mbedtls_platform_zeroize( tmp, tmp_len );
+ if ( tmp != NULL )
+ mbedtls_platform_zeroize( tmp, tmp_len );
+
mbedtls_platform_zeroize( h_i, sizeof( h_i ) );
mbedtls_free( tmp );
@@ -770,6 +771,7 @@ exit:
}
#endif /* MBEDTLS_USE_PSA_CRYPTO */
#if defined(MBEDTLS_SHA256_C)
+MBEDTLS_CHECK_RETURN_CRITICAL
static int tls_prf_sha256( const unsigned char *secret, size_t slen,
const char *label,
const unsigned char *random, size_t rlen,
@@ -781,6 +783,7 @@ static int tls_prf_sha256( const unsigned char *secret, size_t slen,
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
+MBEDTLS_CHECK_RETURN_CRITICAL
static int tls_prf_sha384( const unsigned char *secret, size_t slen,
const char *label,
const unsigned char *random, size_t rlen,
@@ -825,6 +828,7 @@ static void ssl_calc_finished_tls_sha384( mbedtls_ssl_context *, unsigned char *
#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) && \
defined(MBEDTLS_USE_PSA_CRYPTO)
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_use_opaque_psk( mbedtls_ssl_context const *ssl )
{
if( ssl->conf->f_psk != NULL )
@@ -949,6 +953,7 @@ typedef int ssl_tls_prf_t(const unsigned char *, size_t, const char *,
* - MBEDTLS_SSL_EXPORT_KEYS: ssl->conf->{f,p}_export_keys
* - MBEDTLS_DEBUG_C: ssl->conf->{f,p}_dbg
*/
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_populate_transform( mbedtls_ssl_transform *transform,
int ciphersuite,
const unsigned char master[48],
@@ -976,6 +981,7 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform,
#if defined(MBEDTLS_USE_PSA_CRYPTO)
int psa_fallthrough;
#endif /* MBEDTLS_USE_PSA_CRYPTO */
+ int do_mbedtls_cipher_setup;
unsigned char keyblk[256];
unsigned char *key1;
unsigned char *key2;
@@ -990,6 +996,7 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform,
#if !defined(MBEDTLS_SSL_HW_RECORD_ACCEL) && \
!defined(MBEDTLS_SSL_EXPORT_KEYS) && \
+ !defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) && \
!defined(MBEDTLS_DEBUG_C)
ssl = NULL; /* make sure we don't use it except for those cases */
(void) ssl;
@@ -1353,6 +1360,7 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform,
}
#endif
+ do_mbedtls_cipher_setup = 1;
#if defined(MBEDTLS_USE_PSA_CRYPTO)
/* Only use PSA-based ciphers for TLS-1.2.
@@ -1361,7 +1369,7 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform,
* the structure field for the IV, which the PSA-based
* implementation currently doesn't. */
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
- if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
+ if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
{
ret = mbedtls_cipher_setup_psa( &transform->cipher_ctx_enc,
cipher_info, transform->taglen );
@@ -1388,15 +1396,18 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform,
psa_fallthrough = 1;
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
- if( psa_fallthrough == 1 )
+ if( psa_fallthrough == 0 )
+ do_mbedtls_cipher_setup = 0;
#endif /* MBEDTLS_USE_PSA_CRYPTO */
- if( ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_enc,
- cipher_info ) ) != 0 )
+ if( do_mbedtls_cipher_setup &&
+ ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_enc,
+ cipher_info ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup", ret );
goto end;
}
+ do_mbedtls_cipher_setup = 1;
#if defined(MBEDTLS_USE_PSA_CRYPTO)
/* Only use PSA-based ciphers for TLS-1.2.
* That's relevant at least for TLS-1.0, where
@@ -1404,7 +1415,7 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform,
* the structure field for the IV, which the PSA-based
* implementation currently doesn't. */
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
- if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
+ if( minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
{
ret = mbedtls_cipher_setup_psa( &transform->cipher_ctx_dec,
cipher_info, transform->taglen );
@@ -1431,10 +1442,12 @@ static int ssl_populate_transform( mbedtls_ssl_transform *transform,
psa_fallthrough = 1;
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
- if( psa_fallthrough == 1 )
+ if( psa_fallthrough == 0 )
+ do_mbedtls_cipher_setup = 0;
#endif /* MBEDTLS_USE_PSA_CRYPTO */
- if( ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_dec,
- cipher_info ) ) != 0 )
+ if( do_mbedtls_cipher_setup &&
+ ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_dec,
+ cipher_info ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup", ret );
goto end;
@@ -1511,6 +1524,7 @@ end:
* Outputs:
* - the tls_prf, calc_verify and calc_finished members of handshake structure
*/
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_set_handshake_prfs( mbedtls_ssl_handshake_params *handshake,
int minor_ver,
mbedtls_md_type_t hash )
@@ -1580,6 +1594,7 @@ static int ssl_set_handshake_prfs( mbedtls_ssl_handshake_params *handshake,
* EMS: passed to calc_verify (debug + (SSL3) session_negotiate)
* PSA-PSA: minor_ver, conf
*/
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_compute_master( mbedtls_ssl_handshake_params *handshake,
unsigned char *master,
const mbedtls_ssl_context *ssl )
@@ -2108,6 +2123,7 @@ int mbedtls_ssl_psk_derive_premaster( mbedtls_ssl_context *ssl, mbedtls_key_exch
#endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */
#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION)
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_hello_request( mbedtls_ssl_context *ssl );
#if defined(MBEDTLS_SSL_PROTO_DTLS)
@@ -2323,6 +2339,7 @@ write_msg:
#if defined(MBEDTLS_SSL_RENEGOTIATION) && defined(MBEDTLS_SSL_CLI_C)
#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl,
unsigned char *crt_buf,
size_t crt_buf_len )
@@ -2338,6 +2355,7 @@ static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl,
return( memcmp( peer_crt->raw.p, crt_buf, peer_crt->raw.len ) );
}
#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl,
unsigned char *crt_buf,
size_t crt_buf_len )
@@ -2372,6 +2390,7 @@ static int ssl_check_peer_crt_unchanged( mbedtls_ssl_context *ssl,
* Once the certificate message is read, parse it into a cert chain and
* perform basic checks, but leave actual verification to the caller
*/
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_certificate_chain( mbedtls_ssl_context *ssl,
mbedtls_x509_crt *chain )
{
@@ -2521,6 +2540,7 @@ static int ssl_parse_certificate_chain( mbedtls_ssl_context *ssl,
}
#if defined(MBEDTLS_SSL_SRV_C)
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_srv_check_client_no_crt_notification( mbedtls_ssl_context *ssl )
{
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
@@ -2570,6 +2590,7 @@ static int ssl_srv_check_client_no_crt_notification( mbedtls_ssl_context *ssl )
*/
#define SSL_CERTIFICATE_EXPECTED 0
#define SSL_CERTIFICATE_SKIP 1
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_certificate_coordinate( mbedtls_ssl_context *ssl,
int authmode )
{
@@ -2599,6 +2620,7 @@ static int ssl_parse_certificate_coordinate( mbedtls_ssl_context *ssl,
return( SSL_CERTIFICATE_EXPECTED );
}
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl,
int authmode,
mbedtls_x509_crt *chain,
@@ -2696,7 +2718,9 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl,
{
const mbedtls_pk_context *pk = &chain->pk;
- /* If certificate uses an EC key, make sure the curve is OK */
+ /* If certificate uses an EC key, make sure the curve is OK.
+ * This is a public key, so it can't be opaque, so can_do() is a good
+ * enough check to ensure pk_ec() is safe to use here. */
if( mbedtls_pk_can_do( pk, MBEDTLS_PK_ECKEY ) &&
mbedtls_ssl_check_curve( ssl, mbedtls_pk_ec( *pk )->grp.id ) != 0 )
{
@@ -2787,6 +2811,7 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl,
}
#if !defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_remember_peer_crt_digest( mbedtls_ssl_context *ssl,
unsigned char *start, size_t len )
{
@@ -2818,6 +2843,7 @@ static int ssl_remember_peer_crt_digest( mbedtls_ssl_context *ssl,
return( ret );
}
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_remember_peer_pubkey( mbedtls_ssl_context *ssl,
unsigned char *start, size_t len )
{
@@ -3388,7 +3414,7 @@ static void ssl_calc_finished_tls_sha384(
sha512.state, sizeof( sha512.state ) );
#endif
/* mbedtls_sha512_finish_ret's output parameter is declared as a
- * 64-byte buffer, but sice we're using SHA-384, we know that the
+ * 64-byte buffer, but since we're using SHA-384, we know that the
* output fits in 48 bytes. This is correct C, but GCC 11.1 warns
* about it.
*/
@@ -3428,7 +3454,7 @@ void mbedtls_ssl_handshake_wrapup_free_hs_transform( mbedtls_ssl_context *ssl )
ssl->handshake = NULL;
/*
- * Free the previous transform and swith in the current one
+ * Free the previous transform and switch in the current one
*/
if( ssl->transform )
{
@@ -3796,6 +3822,7 @@ void mbedtls_ssl_session_init( mbedtls_ssl_session *session )
memset( session, 0, sizeof(mbedtls_ssl_session) );
}
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_handshake_init( mbedtls_ssl_context *ssl )
{
/* Clear old handshake information if present */
@@ -3873,6 +3900,7 @@ static int ssl_handshake_init( mbedtls_ssl_context *ssl )
#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
/* Dummy cookie callbacks for defaults */
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_cookie_write_dummy( void *ctx,
unsigned char **p, unsigned char *end,
const unsigned char *cli_id, size_t cli_id_len )
@@ -3886,6 +3914,7 @@ static int ssl_cookie_write_dummy( void *ctx,
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
}
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_cookie_check_dummy( void *ctx,
const unsigned char *cookie, size_t cookie_len,
const unsigned char *cli_id, size_t cli_id_len )
@@ -4063,9 +4092,12 @@ int mbedtls_ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial )
memset( ssl->out_buf, 0, out_buf_len );
+ int clear_in_buf = 1;
#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C)
- if( partial == 0 )
+ if( partial != 0 )
+ clear_in_buf = 0;
#endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */
+ if( clear_in_buf )
{
ssl->in_left = 0;
memset( ssl->in_buf, 0, in_buf_len );
@@ -4102,9 +4134,12 @@ int mbedtls_ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial )
#endif
#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
+ int free_cli_id = 1;
#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE)
- if( partial == 0 )
+ if( partial != 0 )
+ free_cli_id = 0;
#endif
+ if( free_cli_id )
{
mbedtls_free( ssl->cli_id );
ssl->cli_id = NULL;
@@ -4303,6 +4338,7 @@ void mbedtls_ssl_conf_cert_profile( mbedtls_ssl_config *conf,
}
/* Append a new keycert entry to a (possibly empty) list */
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_append_key_cert( mbedtls_ssl_key_cert **head,
mbedtls_x509_crt *cert,
mbedtls_pk_context *key )
@@ -4444,7 +4480,7 @@ static void ssl_conf_remove_psk( mbedtls_ssl_config *conf )
conf->psk_opaque = MBEDTLS_SVC_KEY_ID_INIT;
}
/* This and the following branch should never
- * be taken simultaenously as we maintain the
+ * be taken simultaneously as we maintain the
* invariant that raw and opaque PSKs are never
* configured simultaneously. As a safeguard,
* though, `else` is omitted here. */
@@ -4471,6 +4507,7 @@ static void ssl_conf_remove_psk( mbedtls_ssl_config *conf )
* It checks that the provided identity is well-formed and attempts
* to make a copy of it in the SSL config.
* On failure, the PSK identity in the config remains unset. */
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_conf_set_psk_identity( mbedtls_ssl_config *conf,
unsigned char const *psk_identity,
size_t psk_identity_len )
@@ -4632,6 +4669,9 @@ int mbedtls_ssl_conf_dh_param_bin( mbedtls_ssl_config *conf,
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+ mbedtls_mpi_free( &conf->dhm_P );
+ mbedtls_mpi_free( &conf->dhm_G );
+
if( ( ret = mbedtls_mpi_read_binary( &conf->dhm_P, dhm_P, P_len ) ) != 0 ||
( ret = mbedtls_mpi_read_binary( &conf->dhm_G, dhm_G, G_len ) ) != 0 )
{
@@ -4647,6 +4687,9 @@ int mbedtls_ssl_conf_dh_param_ctx( mbedtls_ssl_config *conf, mbedtls_dhm_context
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+ mbedtls_mpi_free( &conf->dhm_P );
+ mbedtls_mpi_free( &conf->dhm_G );
+
if( ( ret = mbedtls_mpi_copy( &conf->dhm_P, &dhm_ctx->P ) ) != 0 ||
( ret = mbedtls_mpi_copy( &conf->dhm_G, &dhm_ctx->G ) ) != 0 )
{
@@ -5384,6 +5427,7 @@ static unsigned char ssl_serialized_session_header[] = {
* verify_result is put before peer_cert so that all mandatory fields come
* together in one block.
*/
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_session_save( const mbedtls_ssl_session *session,
unsigned char omit_header,
unsigned char *buf,
@@ -5583,6 +5627,7 @@ int mbedtls_ssl_session_save( const mbedtls_ssl_session *session,
* This internal version is wrapped by a public function that cleans up in
* case of error, and has an extra option omit_header.
*/
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_session_load( mbedtls_ssl_session *session,
unsigned char omit_header,
const unsigned char *buf,
@@ -5886,6 +5931,7 @@ int mbedtls_ssl_handshake( mbedtls_ssl_context *ssl )
/*
* Write HelloRequest to request renegotiation on server
*/
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_hello_request( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@@ -6298,7 +6344,7 @@ int mbedtls_ssl_context_save( mbedtls_ssl_context *ssl,
MBEDTLS_SSL_DEBUG_MSG( 1, ( "There is pending outgoing data" ) );
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
- /* Protocol must be DLTS, not TLS */
+ /* Protocol must be DTLS, not TLS */
if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Only DTLS is supported" ) );
@@ -6473,30 +6519,48 @@ int mbedtls_ssl_context_save( mbedtls_ssl_context *ssl,
* Helper to get TLS 1.2 PRF from ciphersuite
* (Duplicates bits of logic from ssl_set_handshake_prfs().)
*/
+#if defined(MBEDTLS_SHA256_C) || \
+ (defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384))
typedef int (*tls_prf_fn)( const unsigned char *secret, size_t slen,
const char *label,
const unsigned char *random, size_t rlen,
unsigned char *dstbuf, size_t dlen );
static tls_prf_fn ssl_tls12prf_from_cs( int ciphersuite_id )
{
-#if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
const mbedtls_ssl_ciphersuite_t * const ciphersuite_info =
mbedtls_ssl_ciphersuite_from_id( ciphersuite_id );
+ if( ciphersuite_info == NULL )
+ return( NULL );
+
+#if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
if( ciphersuite_info->mac == MBEDTLS_MD_SHA384 )
return( tls_prf_sha384 );
-#else
- (void) ciphersuite_id;
+ else
#endif
- return( tls_prf_sha256 );
+#if defined(MBEDTLS_SHA256_C)
+ {
+ if( ciphersuite_info->mac == MBEDTLS_MD_SHA256 )
+ return( tls_prf_sha256 );
+ }
+#endif
+#if !defined(MBEDTLS_SHA256_C) && \
+ (!defined(MBEDTLS_SHA512_C) || defined(MBEDTLS_SHA512_NO_SHA384))
+ (void) ciphersuite_info;
+#endif
+ return( NULL );
}
+#endif /* MBEDTLS_SHA256_C ||
+ (MBEDTLS_SHA512_C && !MBEDTLS_SHA512_NO_SHA384) */
+
/*
* Deserialize context, see mbedtls_ssl_context_save() for format.
*
* This internal version is wrapped by a public function that cleans up in
* case of error.
*/
+MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_context_load( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
@@ -6505,6 +6569,7 @@ static int ssl_context_load( mbedtls_ssl_context *ssl,
const unsigned char * const end = buf + len;
size_t session_len;
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+ tls_prf_fn prf_func = NULL;
/*
* The context should have been freshly setup or reset.
@@ -6592,6 +6657,10 @@ static int ssl_context_load( mbedtls_ssl_context *ssl,
ssl->transform_out = ssl->transform;
ssl->transform_negotiate = NULL;
+ prf_func = ssl_tls12prf_from_cs( ssl->session->ciphersuite );
+ if( prf_func == NULL )
+ return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
+
/* Read random bytes and populate structure */
if( (size_t)( end - p ) < sizeof( ssl->transform->randbytes ) )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
@@ -6610,7 +6679,7 @@ static int ssl_context_load( mbedtls_ssl_context *ssl,
#if defined(MBEDTLS_ZLIB_SUPPORT)
ssl->session->compression,
#endif
- ssl_tls12prf_from_cs( ssl->session->ciphersuite ),
+ prf_func,
p, /* currently pointing to randbytes */
MBEDTLS_SSL_MINOR_VERSION_3, /* (D)TLS 1.2 is forced */
ssl->conf->endpoint,
@@ -6883,7 +6952,7 @@ void mbedtls_ssl_free( mbedtls_ssl_context *ssl )
}
/*
- * Initialze mbedtls_ssl_config
+ * Initialize mbedtls_ssl_config
*/
void mbedtls_ssl_config_init( mbedtls_ssl_config *conf )
{
@@ -7320,6 +7389,18 @@ int mbedtls_ssl_check_curve( const mbedtls_ssl_context *ssl, mbedtls_ecp_group_i
return( -1 );
}
+
+/*
+ * Same as mbedtls_ssl_check_curve() but takes a TLS ID for the curve.
+ */
+int mbedtls_ssl_check_curve_tls_id( const mbedtls_ssl_context *ssl, uint16_t tls_id )
+{
+ const mbedtls_ecp_curve_info *curve_info =
+ mbedtls_ecp_curve_info_from_tls_id( tls_id );
+ if( curve_info == NULL )
+ return( -1 );
+ return( mbedtls_ssl_check_curve( ssl, curve_info->grp_id ) );
+}
#endif /* MBEDTLS_ECP_C */
#if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)