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share write_early_data_ext function

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Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
This commit is contained in:
Jerry Yu 2023-11-23 18:06:06 +08:00
parent 0069abc141
commit 5233539d9f
4 changed files with 35 additions and 54 deletions
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48
library/ssl_tls13_server.c
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@ -2524,7 +2524,8 @@ static int ssl_tls13_write_encrypted_extensions_body(mbedtls_ssl_context *ssl,
#if defined(MBEDTLS_SSL_EARLY_DATA)
if (ssl->early_data_status == MBEDTLS_SSL_EARLY_DATA_STATUS_ACCEPTED) {
ret = mbedtls_ssl_tls13_write_early_data_ext(ssl, p, end, &output_len);
ret = mbedtls_ssl_tls13_write_early_data_ext(
ssl, p, end, &output_len, NULL);
if (ret != 0) {
return ret;
}
@ -3202,49 +3203,6 @@ static int ssl_tls13_prepare_new_session_ticket(mbedtls_ssl_context *ssl,
return 0;
}
#if defined(MBEDTLS_SSL_EARLY_DATA)
/* RFC 8446 section 4.2.10
*
* struct {
* select (Handshake.msg_type) {
* case new_session_ticket: uint32 max_early_data_size;
* ...
* };
* } EarlyDataIndication;
*/
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_tls13_write_nst_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;
if (!mbedtls_ssl_session_ticket_allow_early_data(ssl->session)) {
MBEDTLS_SSL_DEBUG_MSG(
4, ("early_data not allowed, skip early_data extension in "
"NewSessionTicket"));
return 0;
}
MBEDTLS_SSL_CHK_BUF_PTR(p, end, 8);
MBEDTLS_PUT_UINT16_BE(MBEDTLS_TLS_EXT_EARLY_DATA, p, 0);
MBEDTLS_PUT_UINT16_BE(4, p, 2);
MBEDTLS_PUT_UINT32_BE(ssl->conf->max_early_data_size, p, 4);
MBEDTLS_SSL_DEBUG_MSG(
4, ("Sent max_early_data_size=%u",
(unsigned int) ssl->conf->max_early_data_size));
*out_len = 8;
mbedtls_ssl_tls13_set_hs_sent_ext_mask(ssl, MBEDTLS_TLS_EXT_EARLY_DATA);
return 0;
}
#endif /* MBEDTLS_SSL_EARLY_DATA */
/* This function creates a NewSessionTicket message in the following format:
*
* struct {
@ -3371,7 +3329,7 @@ static int ssl_tls13_write_new_session_ticket_body(mbedtls_ssl_context *ssl,
if (ssl->conf->early_data_enabled == MBEDTLS_SSL_EARLY_DATA_ENABLED &&
ssl->conf->max_early_data_size > 0) {
if ((ret = mbedtls_ssl_tls13_write_early_data_ext(
ssl, p, end, &output_len)) != 0) {
ssl, p, end, &output_len, session)) != 0) {
MBEDTLS_SSL_DEBUG_RET(
1, "mbedtls_ssl_tls13_write_early_data_ext", ret);
return ret;