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https://github.com/Mbed-TLS/mbedtls.git
synced 2025-03-16 13:20:51 +00:00
Add ALPN information in session tickets
Signed-off-by: Waleed Elmelegy <waleed.elmelegy@arm.com>
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775c7768ee
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@ -1312,6 +1312,9 @@ struct mbedtls_ssl_session {
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#if defined(MBEDTLS_SSL_EARLY_DATA)
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uint32_t MBEDTLS_PRIVATE(max_early_data_size); /*!< maximum amount of early data in tickets */
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#if defined(MBEDTLS_SSL_ALPN) && defined(MBEDTLS_SSL_SRV_C)
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char *alpn; /*!< ALPN negotiated in the session */
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#endif
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#endif
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#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
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@ -3735,7 +3735,25 @@ static int ssl_tls12_session_load(mbedtls_ssl_session *session,
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#if defined(MBEDTLS_SSL_PROTO_TLS1_3)
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/* Serialization of TLS 1.3 sessions:
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*
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* For more detail, see the description of ssl_session_save().
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* struct {
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* opaque hostname<0..2^16-1>;
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* uint64 ticket_reception_time;
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* uint32 ticket_lifetime;
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* opaque ticket<1..2^16-1>;
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* } ClientOnlyData;
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*
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* struct {
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* uint32 ticket_age_add;
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* uint8 ticket_flags;
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* opaque resumption_key<0..255>;
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* uint32 max_early_data_size;
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* uint16 record_size_limit;
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* select ( endpoint ) {
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* case client: ClientOnlyData;
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* case server: uint64 ticket_creation_time;
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* };
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* } serialized_session_tls13;
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*
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*/
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#if defined(MBEDTLS_SSL_SESSION_TICKETS)
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MBEDTLS_CHECK_RETURN_CRITICAL
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@ -3750,9 +3768,16 @@ static int ssl_tls13_session_save(const mbedtls_ssl_session *session,
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size_t hostname_len = (session->hostname == NULL) ?
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0 : strlen(session->hostname) + 1;
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#endif
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#if defined(MBEDTLS_SSL_SRV_C) && \
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defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_ALPN)
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const uint8_t alpn_len = (session->alpn == NULL) ?
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0 : (uint8_t) strlen(session->alpn) + 1;
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#endif
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size_t needed = 4 /* ticket_age_add */
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+ 1 /* ticket_flags */
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+ 1; /* resumption_key length */
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*olen = 0;
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if (session->resumption_key_len > MBEDTLS_SSL_TLS1_3_TICKET_RESUMPTION_KEY_LEN) {
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@ -3771,6 +3796,15 @@ static int ssl_tls13_session_save(const mbedtls_ssl_session *session,
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needed += 8; /* ticket_creation_time or ticket_reception_time */
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#endif
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#if defined(MBEDTLS_SSL_SRV_C)
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if (session->endpoint == MBEDTLS_SSL_IS_SERVER) {
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#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_ALPN)
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needed += 1 /* alpn_len */
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+ alpn_len; /* alpn */
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#endif
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}
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#endif /* MBEDTLS_SSL_SRV_C */
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#if defined(MBEDTLS_SSL_CLI_C)
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if (session->endpoint == MBEDTLS_SSL_IS_CLIENT) {
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#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
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@ -3813,13 +3847,24 @@ static int ssl_tls13_session_save(const mbedtls_ssl_session *session,
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p += 2;
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#endif /* MBEDTLS_SSL_RECORD_SIZE_LIMIT */
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#if defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_SSL_SRV_C)
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#if defined(MBEDTLS_SSL_SRV_C)
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if (session->endpoint == MBEDTLS_SSL_IS_SERVER) {
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#if defined(MBEDTLS_HAVE_TIME)
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MBEDTLS_PUT_UINT64_BE((uint64_t) session->ticket_creation_time, p, 0);
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p += 8;
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}
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#endif /* MBEDTLS_HAVE_TIME */
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#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_ALPN)
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*p++ = alpn_len;
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if (alpn_len > 0) {
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/* save chosen alpn */
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memcpy(p, session->alpn, alpn_len);
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p += alpn_len;
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}
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#endif /* MBEDTLS_SSL_EARLY_DATA && MBEDTLS_SSL_ALPN */
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}
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#endif /* MBEDTLS_SSL_SRV_C */
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#if defined(MBEDTLS_SSL_CLI_C)
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if (session->endpoint == MBEDTLS_SSL_IS_CLIENT) {
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#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
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@ -3894,16 +3939,39 @@ static int ssl_tls13_session_load(mbedtls_ssl_session *session,
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p += 2;
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#endif /* MBEDTLS_SSL_RECORD_SIZE_LIMIT */
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#if defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_SSL_SRV_C)
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#if defined(MBEDTLS_SSL_SRV_C)
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if (session->endpoint == MBEDTLS_SSL_IS_SERVER) {
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#if defined(MBEDTLS_HAVE_TIME)
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if (end - p < 8) {
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return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
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}
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session->ticket_creation_time = MBEDTLS_GET_UINT64_BE(p, 0);
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p += 8;
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}
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#endif /* MBEDTLS_HAVE_TIME */
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#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_ALPN)
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uint8_t alpn_len;
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if (end - p < 1) {
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return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
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}
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alpn_len = *p++;
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if (end - p < alpn_len) {
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return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
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}
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if (alpn_len > 0) {
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session->alpn = mbedtls_calloc(alpn_len, sizeof(char));
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if (session->alpn == NULL) {
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return MBEDTLS_ERR_SSL_ALLOC_FAILED;
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}
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memcpy(session->alpn, p, alpn_len);
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p += alpn_len;
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}
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#endif /* MBEDTLS_SSL_EARLY_DATA && MBEDTLS_SSL_ALPN */
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}
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#endif /* MBEDTLS_SSL_SRV_C */
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#if defined(MBEDTLS_SSL_CLI_C)
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if (session->endpoint == MBEDTLS_SSL_IS_CLIENT) {
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#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
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@ -4848,6 +4916,10 @@ void mbedtls_ssl_session_free(mbedtls_ssl_session *session)
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#if defined(MBEDTLS_SSL_PROTO_TLS1_3) && \
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defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
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mbedtls_free(session->hostname);
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#endif
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#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_ALPN) && \
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defined(MBEDTLS_SSL_SRV_C)
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mbedtls_free(session->alpn);
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#endif
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mbedtls_free(session->ticket);
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#endif
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@ -467,7 +467,17 @@ static int ssl_tls13_session_copy_ticket(mbedtls_ssl_session *dst,
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#if defined(MBEDTLS_SSL_EARLY_DATA)
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dst->max_early_data_size = src->max_early_data_size;
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#endif
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#if defined(MBEDTLS_SSL_ALPN)
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if (src->alpn != NULL) {
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dst->alpn = mbedtls_calloc(strlen(src->alpn) + 1, sizeof(char));
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if (dst->alpn == NULL) {
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return MBEDTLS_ERR_SSL_ALLOC_FAILED;
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}
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memcpy(dst->alpn, src->alpn, strlen(src->alpn) + 1);
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}
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#endif /* MBEDTLS_SSL_ALPN */
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#endif /* MBEDTLS_SSL_EARLY_DATA*/
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return 0;
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}
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@ -3137,6 +3147,16 @@ static int ssl_tls13_prepare_new_session_ticket(mbedtls_ssl_context *ssl,
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MBEDTLS_SSL_PRINT_TICKET_FLAGS(4, session->ticket_flags);
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#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_ALPN)
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if (ssl->alpn_chosen != NULL) {
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session->alpn = mbedtls_calloc(strlen(ssl->alpn_chosen) + 1, sizeof(char));
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if (session->alpn == NULL) {
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return MBEDTLS_ERR_SSL_ALLOC_FAILED;
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}
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memcpy(session->alpn, ssl->alpn_chosen, strlen(ssl->alpn_chosen) + 1);
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}
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#endif
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/* Generate ticket_age_add */
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if ((ret = ssl->conf->f_rng(ssl->conf->p_rng,
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(unsigned char *) &session->ticket_age_add,
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@ -1793,7 +1793,14 @@ int mbedtls_test_ssl_tls13_populate_session(mbedtls_ssl_session *session,
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#if defined(MBEDTLS_SSL_EARLY_DATA)
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session->max_early_data_size = 0x87654321;
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#endif
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#if defined(MBEDTLS_SSL_ALPN) && defined(MBEDTLS_SSL_SRV_C)
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session->alpn = mbedtls_calloc(strlen("ALPNExample")+1, sizeof(char));
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if (session->alpn == NULL) {
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return -1;
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}
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strcpy(session->alpn, "ALPNExample");
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#endif /* MBEDTLS_SSL_ALPN && MBEDTLS_SSL_SRV_C */
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#endif /* MBEDTLS_SSL_EARLY_DATA */
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#if defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_SSL_SRV_C)
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if (session->endpoint == MBEDTLS_SSL_IS_SERVER) {
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@ -2104,6 +2104,15 @@ void ssl_serialize_session_save_load(int ticket_len, char *crt_file,
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#if defined(MBEDTLS_SSL_EARLY_DATA)
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TEST_ASSERT(
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original.max_early_data_size == restored.max_early_data_size);
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#if defined(MBEDTLS_SSL_ALPN) && defined(MBEDTLS_SSL_SRV_C)
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if (endpoint_type == MBEDTLS_SSL_IS_SERVER) {
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TEST_ASSERT(original.alpn != NULL);
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TEST_ASSERT(restored.alpn != NULL);
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TEST_ASSERT(memcmp(original.alpn,
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restored.alpn,
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strlen(original.alpn)) == 0);
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}
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#endif
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#endif
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#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
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