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Merge pull request #6486 from xkqian/tls13_add_early_data_indication

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The merge job of the internal CI ran successfully. This is good to go.
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Ronald Cron 2022-11-17 12:48:50 +01:00 committed by GitHub
commit d12922a69a
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10 changed files with 225 additions and 5 deletions
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6
include/mbedtls/check_config.h
View file

@ -842,10 +842,10 @@
"but no key exchange methods defined with MBEDTLS_KEY_EXCHANGE_xxxx"
#endif
/* Early data requires PSK related mode defined */
#if defined(MBEDTLS_SSL_EARLY_DATA) && \
( !defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED) && \
!defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED))
( !defined(MBEDTLS_SSL_SESSION_TICKETS) || \
( !defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED) && \
!defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED) ) )
#error "MBEDTLS_SSL_EARLY_DATA defined, but not all prerequisites"
#endif

5
include/mbedtls/mbedtls_config.h
View file

@ -1637,7 +1637,8 @@
*
* Enable support for RFC 8446 TLS 1.3 early data.
*
* Requires: MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED or
* Requires: MBEDTLS_SSL_SESSION_TICKETS and either
* MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED or
* MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED
*
* Comment this to disable support for early data. If MBEDTLS_SSL_PROTO_TLS1_3
@ -1647,7 +1648,7 @@
* production.
*
*/
//#define MBEDTLS_SSL_EARLY_DATA
#define MBEDTLS_SSL_EARLY_DATA
/**
* \def MBEDTLS_SSL_PROTO_DTLS

27
include/mbedtls/ssl.h
View file

@ -801,6 +801,29 @@ typedef struct mbedtls_ssl_key_cert mbedtls_ssl_key_cert;
typedef struct mbedtls_ssl_flight_item mbedtls_ssl_flight_item;
#endif
#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_CLI_C)
#define MBEDTLS_SSL_EARLY_DATA_STATUS_UNKNOWN 0
#define MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT 1
#define MBEDTLS_SSL_EARLY_DATA_STATUS_INDICATION_SENT 2
#define MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED 3
#define MBEDTLS_SSL_EARLY_DATA_STATUS_ACCEPTED 4
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1_3) && defined(MBEDTLS_SSL_SESSION_TICKETS)
typedef uint8_t mbedtls_ssl_tls13_ticket_flags;
#define MBEDTLS_SSL_TLS1_3_TICKET_ALLOW_PSK_RESUMPTION \
MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK /* 1U << 0 */
#define MBEDTLS_SSL_TLS1_3_TICKET_ALLOW_PSK_EPHEMERAL_RESUMPTION \
MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL /* 1U << 2 */
#define MBEDTLS_SSL_TLS1_3_TICKET_ALLOW_EARLY_DATA ( 1U << 3 )
#define MBEDTLS_SSL_TLS1_3_TICKET_FLAGS_MASK \
( MBEDTLS_SSL_TLS1_3_TICKET_ALLOW_PSK_RESUMPTION | \
MBEDTLS_SSL_TLS1_3_TICKET_ALLOW_PSK_EPHEMERAL_RESUMPTION | \
MBEDTLS_SSL_TLS1_3_TICKET_ALLOW_EARLY_DATA )
#endif /* MBEDTLS_SSL_PROTO_TLS1_3 && MBEDTLS_SSL_SESSION_TICKETS */
/**
* \brief Callback type: server-side session cache getter
*
@ -1783,6 +1806,10 @@ struct mbedtls_ssl_context
* and #MBEDTLS_SSL_CID_DISABLED. */
#endif /* MBEDTLS_SSL_DTLS_CONNECTION_ID */
#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_CLI_C)
int MBEDTLS_PRIVATE(early_data_status);
#endif /* MBEDTLS_SSL_EARLY_DATA && MBEDTLS_SSL_CLI_C */
/** Callback to export key block and master secret */
mbedtls_ssl_export_keys_t *MBEDTLS_PRIVATE(f_export_keys);
void *MBEDTLS_PRIVATE(p_export_keys); /*!< context for key export callback */

6
library/ssl_misc.h
View file

@ -2046,6 +2046,12 @@ int mbedtls_ssl_tls13_generate_and_write_ecdh_key_exchange(
size_t *out_len );
#endif /* MBEDTLS_ECDH_C */
#if defined(MBEDTLS_SSL_EARLY_DATA)
int mbedtls_ssl_tls13_write_early_data_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
const unsigned char *end,
size_t *out_len );
#endif /* MBEDTLS_SSL_EARLY_DATA */
#endif /* MBEDTLS_SSL_PROTO_TLS1_3 */

53
library/ssl_tls13_client.c
View file

@ -700,6 +700,19 @@ static int ssl_tls13_has_configured_ticket( mbedtls_ssl_context *ssl )
session != NULL && session->ticket != NULL );
}
#if defined(MBEDTLS_SSL_EARLY_DATA)
static int ssl_tls13_early_data_has_valid_ticket( mbedtls_ssl_context *ssl )
{
mbedtls_ssl_session *session = ssl->session_negotiate;
return( ssl->handshake->resume &&
session->tls_version == MBEDTLS_SSL_VERSION_TLS1_3 &&
( session->ticket_flags &
MBEDTLS_SSL_TLS1_3_TICKET_ALLOW_EARLY_DATA ) &&
mbedtls_ssl_tls13_cipher_suite_is_offered(
ssl, session->ciphersuite ) );
}
#endif
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_tls13_ticket_get_identity( mbedtls_ssl_context *ssl,
psa_algorithm_t *hash_alg,
@ -1160,6 +1173,29 @@ int mbedtls_ssl_tls13_write_client_hello_exts( mbedtls_ssl_context *ssl,
}
#endif
#if defined(MBEDTLS_SSL_EARLY_DATA)
if( mbedtls_ssl_conf_tls13_some_psk_enabled( ssl ) &&
ssl_tls13_early_data_has_valid_ticket( ssl ) &&
ssl->conf->early_data_enabled == MBEDTLS_SSL_EARLY_DATA_ENABLED )
{
ret = mbedtls_ssl_tls13_write_early_data_ext( ssl, p, end, &ext_len );
if( ret != 0 )
return( ret );
p += ext_len;
/* Initializes the status to `indication sent`. It will be updated to
* `accepted` or `rejected` depending on whether the EncryptedExtension
* message will contain an early data indication extension or not.
*/
ssl->early_data_status = MBEDTLS_SSL_EARLY_DATA_STATUS_INDICATION_SENT;
}
else
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write early_data extension" ) );
ssl->early_data_status = MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT;
}
#endif /* MBEDTLS_SSL_EARLY_DATA */
#if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_PSK_ENABLED)
/* For PSK-based key exchange we need the pre_shared_key extension
* and the psk_key_exchange_modes extension.
@ -2505,6 +2541,23 @@ static int ssl_tls13_parse_new_session_ticket_exts( mbedtls_ssl_context *ssl,
switch( extension_type )
{
#if defined(MBEDTLS_SSL_EARLY_DATA)
case MBEDTLS_TLS_EXT_EARLY_DATA:
if( extension_data_len != 4 )
{
MBEDTLS_SSL_PEND_FATAL_ALERT(
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR,
MBEDTLS_ERR_SSL_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_DECODE_ERROR );
}
if( ssl->session != NULL )
{
ssl->session->ticket_flags |=
MBEDTLS_SSL_TLS1_3_TICKET_ALLOW_EARLY_DATA;
}
break;
#endif /* MBEDTLS_SSL_EARLY_DATA */
default:
MBEDTLS_SSL_PRINT_EXT(
3, MBEDTLS_SSL_HS_NEW_SESSION_TICKET,

33
library/ssl_tls13_generic.c
View file

@ -1374,6 +1374,39 @@ cleanup:
#endif /* MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE */
/* Early Data Indication Extension
*
* struct {
* select ( Handshake.msg_type ) {
* ...
* case client_hello: Empty;
* case encrypted_extensions: Empty;
* };
* } EarlyDataIndication;
*/
#if defined(MBEDTLS_SSL_EARLY_DATA)
int mbedtls_ssl_tls13_write_early_data_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
const unsigned char *end,
size_t *out_len )
{
unsigned char *p = buf;
*out_len = 0;
((void) ssl);
MBEDTLS_SSL_CHK_BUF_PTR( p, end, 4 );
MBEDTLS_PUT_UINT16_BE( MBEDTLS_TLS_EXT_EARLY_DATA, p, 0 );
MBEDTLS_PUT_UINT16_BE( 0, p, 2 );
*out_len = 4;
mbedtls_ssl_tls13_set_hs_sent_ext_mask( ssl, MBEDTLS_TLS_EXT_EARLY_DATA );
return( 0 );
}
#endif /* MBEDTLS_SSL_EARLY_DATA */
/* Reset SSL context and update hash for handling HRR.
*
* Replace Transcript-Hash(X) by

37
programs/ssl/ssl_client2.c
View file

@ -64,6 +64,7 @@ int main( void )
#define DFL_KEY_OPAQUE 0
#define DFL_KEY_PWD ""
#define DFL_PSK ""
#define DFL_EARLY_DATA MBEDTLS_SSL_EARLY_DATA_DISABLED
#define DFL_PSK_OPAQUE 0
#define DFL_PSK_IDENTITY "Client_identity"
#define DFL_ECJPAKE_PW NULL
@ -344,6 +345,14 @@ int main( void )
#define USAGE_SERIALIZATION ""
#endif
#if defined(MBEDTLS_SSL_EARLY_DATA)
#define USAGE_EARLY_DATA \
" early_data=%%d default: 0 (disabled)\n" \
" options: 0 (disabled), 1 (enabled)\n"
#else
#define USAGE_EARLY_DATA ""
#endif /* MBEDTLS_SSL_EARLY_DATA && MBEDTLS_SSL_PROTO_TLS1_3 */
#define USAGE_KEY_OPAQUE_ALGS \
" key_opaque_algs=%%s Allowed opaque key algorithms.\n" \
" comma-separated pair of values among the following:\n" \
@ -422,6 +431,7 @@ int main( void )
USAGE_REPRODUCIBLE \
USAGE_CURVES \
USAGE_SIG_ALGS \
USAGE_EARLY_DATA \
USAGE_DHMLEN \
USAGE_KEY_OPAQUE_ALGS \
"\n"
@ -533,6 +543,9 @@ struct options
* after renegotiation */
int reproducible; /* make communication reproducible */
int skip_close_notify; /* skip sending the close_notify alert */
#if defined(MBEDTLS_SSL_EARLY_DATA)
int early_data; /* support for early data */
#endif
int query_config_mode; /* whether to read config */
int use_srtp; /* Support SRTP */
int force_srtp_profile; /* SRTP protection profile to use or all */
@ -932,6 +945,9 @@ int main( int argc, char *argv[] )
opt.alpn_string = DFL_ALPN_STRING;
opt.curves = DFL_CURVES;
opt.sig_algs = DFL_SIG_ALGS;
#if defined(MBEDTLS_SSL_EARLY_DATA)
opt.early_data = DFL_EARLY_DATA;
#endif
opt.transport = DFL_TRANSPORT;
opt.hs_to_min = DFL_HS_TO_MIN;
opt.hs_to_max = DFL_HS_TO_MAX;
@ -1189,7 +1205,24 @@ int main( int argc, char *argv[] )
default: goto usage;
}
}
#if defined(MBEDTLS_SSL_PROTO_TLS1_3)
#if defined(MBEDTLS_SSL_EARLY_DATA)
else if( strcmp( p, "early_data" ) == 0 )
{
switch( atoi( q ) )
{
case 0:
opt.early_data = MBEDTLS_SSL_EARLY_DATA_DISABLED;
break;
case 1:
opt.early_data = MBEDTLS_SSL_EARLY_DATA_ENABLED;
break;
default: goto usage;
}
}
#endif /* MBEDTLS_SSL_EARLY_DATA */
else if( strcmp( p, "tls13_kex_modes" ) == 0 )
{
if( strcmp( q, "psk" ) == 0 )
@ -2091,6 +2124,10 @@ int main( int argc, char *argv[] )
if( opt.max_version != DFL_MAX_VERSION )
mbedtls_ssl_conf_max_tls_version( &conf, opt.max_version );
#if defined(MBEDTLS_SSL_EARLY_DATA)
mbedtls_ssl_tls13_conf_early_data( &conf, opt.early_data );
#endif /* MBEDTLS_SSL_EARLY_DATA */
if( ( ret = mbedtls_ssl_setup( &ssl, &conf ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ssl_setup returned -0x%x\n\n",

59
tests/opt-testcases/tls13-misc.sh
View file

@ -282,3 +282,62 @@ run_test "TLS 1.3: G->m: PSK: configured ephemeral only, good." \
0 \
-s "key exchange mode: ephemeral$"
requires_gnutls_tls1_3
requires_config_enabled MBEDTLS_DEBUG_C
requires_config_enabled MBEDTLS_SSL_CLI_C
requires_all_configs_enabled MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE \
MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED \
MBEDTLS_SSL_EARLY_DATA
requires_any_configs_enabled MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED \
MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED
run_test "TLS 1.3 m->G: EarlyData: basic check, good" \
"$G_NEXT_SRV -d 10 --priority=NORMAL:-VERS-ALL:+VERS-TLS1.3:+CIPHER-ALL:+ECDHE-PSK:+PSK --earlydata --disable-client-cert" \
"$P_CLI debug_level=4 early_data=1 reco_mode=1 reconnect=1 reco_delay=2" \
1 \
-c "Reconnecting with saved session" \
-c "NewSessionTicket: early_data(42) extension received." \
-c "ClientHello: early_data(42) extension exists." \
-c "EncryptedExtensions: early_data(42) extension received." \
-c "EncryptedExtensions: early_data(42) extension ( ignored )." \
-s "Parsing extension 'Early Data/42' (0 bytes)" \
-s "Sending extension Early Data/42 (0 bytes)" \
-s "early data accepted"
requires_gnutls_tls1_3
requires_config_enabled MBEDTLS_DEBUG_C
requires_config_enabled MBEDTLS_SSL_CLI_C
requires_all_configs_enabled MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE \
MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED \
MBEDTLS_SSL_EARLY_DATA
requires_any_configs_enabled MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED \
MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED
run_test "TLS 1.3 m->G: EarlyData: no early_data in NewSessionTicket, good" \
"$G_NEXT_SRV -d 10 --priority=NORMAL:-VERS-ALL:+VERS-TLS1.3:+CIPHER-ALL:+ECDHE-PSK:+PSK --disable-client-cert" \
"$P_CLI debug_level=4 early_data=1 reco_mode=1 reconnect=1 reco_delay=2" \
0 \
-c "Reconnecting with saved session" \
-C "NewSessionTicket: early_data(42) extension received." \
-c "ClientHello: early_data(42) extension does not exist." \
-C "EncryptedExtensions: early_data(42) extension received." \
-C "EncryptedExtensions: early_data(42) extension ( ignored )."
#TODO: OpenSSL tests don't work now. It might be openssl options issue, cause GnuTLS has worked.
skip_next_test
requires_openssl_tls1_3
requires_config_enabled MBEDTLS_DEBUG_C
requires_config_enabled MBEDTLS_SSL_CLI_C
requires_all_configs_enabled MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE \
MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED \
MBEDTLS_SSL_EARLY_DATA
requires_any_configs_enabled MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED \
MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED
run_test "TLS 1.3, ext PSK, early data" \
"$O_NEXT_SRV_EARLY_DATA -msg -debug -tls1_3 -psk_identity 0a0b0c -psk 010203 -allow_no_dhe_kex -nocert" \
"$P_CLI debug_level=5 force_version=tls13 tls13_kex_modes=psk early_data=1 psk=010203 psk_identity=0a0b0c" \
1 \
-c "Reconnecting with saved session" \
-c "NewSessionTicket: early_data(42) extension received." \
-c "ClientHello: early_data(42) extension exists." \
-c "EncryptedExtensions: early_data(42) extension received." \
-c "EncryptedExtensions: early_data(42) extension ( ignored )."

1
tests/scripts/all.sh
View file

@ -3253,6 +3253,7 @@ component_test_tls13_only_ephemeral () {
msg "build: TLS 1.3 only from default, only ephemeral key exchange mode"
scripts/config.py unset MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED
scripts/config.py unset MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED
scripts/config.py unset MBEDTLS_SSL_EARLY_DATA
make CFLAGS="'-DMBEDTLS_USER_CONFIG_FILE=\"../tests/configs/tls13-only.h\"'"
msg "test_suite_ssl: TLS 1.3 only, only ephemeral key exchange mode"

3
tests/ssl-opt.sh
View file

@ -80,12 +80,14 @@ fi
if [ -n "${OPENSSL_NEXT:-}" ]; then
O_NEXT_SRV="$OPENSSL_NEXT s_server -www -cert data_files/server5.crt -key data_files/server5.key"
O_NEXT_SRV_EARLY_DATA="$OPENSSL_NEXT s_server -early_data -cert data_files/server5.crt -key data_files/server5.key"
O_NEXT_SRV_NO_CERT="$OPENSSL_NEXT s_server -www "
O_NEXT_CLI="echo 'GET / HTTP/1.0' | $OPENSSL_NEXT s_client -CAfile data_files/test-ca_cat12.crt"
O_NEXT_CLI_NO_CERT="echo 'GET / HTTP/1.0' | $OPENSSL_NEXT s_client"
else
O_NEXT_SRV=false
O_NEXT_SRV_NO_CERT=false
O_NEXT_SRV_EARLY_DATA=false
O_NEXT_CLI_NO_CERT=false
O_NEXT_CLI=false
fi
@ -1690,6 +1692,7 @@ fi
if [ -n "${OPENSSL_NEXT:-}" ]; then
O_NEXT_SRV="$O_NEXT_SRV -accept $SRV_PORT"
O_NEXT_SRV_NO_CERT="$O_NEXT_SRV_NO_CERT -accept $SRV_PORT"
O_NEXT_SRV_EARLY_DATA="$O_NEXT_SRV_EARLY_DATA -accept $SRV_PORT"
O_NEXT_CLI="$O_NEXT_CLI -connect 127.0.0.1:+SRV_PORT"
O_NEXT_CLI_NO_CERT="$O_NEXT_CLI_NO_CERT -connect 127.0.0.1:+SRV_PORT"
fi