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tls13: srv: Simplify resumption detection

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Avoid marking we resume and then
cancelling it.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This commit is contained in:
Ronald Cron 2024-02-21 10:29:24 +01:00
parent e8c162d7ba
commit 3e47eec431
1 changed files with 6 additions and 5 deletions
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11
library/ssl_tls13_server.c
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@ -309,13 +309,11 @@ static int ssl_tls13_offered_psks_check_identity_match(
*psk_type = MBEDTLS_SSL_TLS1_3_PSK_EXTERNAL; *psk_type = MBEDTLS_SSL_TLS1_3_PSK_EXTERNAL;
MBEDTLS_SSL_DEBUG_BUF(4, "identity", identity, identity_len); MBEDTLS_SSL_DEBUG_BUF(4, "identity", identity, identity_len);
ssl->handshake->resume = 0;
#if defined(MBEDTLS_SSL_SESSION_TICKETS) #if defined(MBEDTLS_SSL_SESSION_TICKETS)
ret = ssl_tls13_offered_psks_check_identity_match_ticket( ret = ssl_tls13_offered_psks_check_identity_match_ticket(
ssl, identity, identity_len, obfuscated_ticket_age, session); ssl, identity, identity_len, obfuscated_ticket_age, session);
if (ret == SSL_TLS1_3_PSK_IDENTITY_MATCH) { if (ret == SSL_TLS1_3_PSK_IDENTITY_MATCH) {
ssl->handshake->resume = 1;
*psk_type = MBEDTLS_SSL_TLS1_3_PSK_RESUMPTION; *psk_type = MBEDTLS_SSL_TLS1_3_PSK_RESUMPTION;
ret = mbedtls_ssl_set_hs_psk(ssl, ret = mbedtls_ssl_set_hs_psk(ssl,
session->resumption_key, session->resumption_key,
@ -1721,10 +1719,13 @@ static int ssl_tls13_parse_client_hello(mbedtls_ssl_context *ssl,
return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER; return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
} }
if (handshake->key_exchange_mode == #if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_PSK_ENABLED)
MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL) { if ((handshake->key_exchange_mode !=
handshake->resume = 0; MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL) &&
(psk.type == MBEDTLS_SSL_TLS1_3_PSK_RESUMPTION)) {
handshake->resume = 1;
} }
#endif
if (handshake->key_exchange_mode != if (handshake->key_exchange_mode !=
MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK) { MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK) {