commit 151f64283ffc91d2c5d3ee7d122cd36ded42cec0
author Jan Bruckner <jan@janbruckner.de> Fri Feb 10 12:45:19 2023 +0100
committer Jan Bruckner <jan@janbruckner.de> Tue Mar 14 08:41:25 2023 +0100
tree 892dd677aaa2794f17b7aad8e6ef3b41beb78d1b
parent 5a3629b6132c7dd4a517ebb6e572bb6dbaeb9888

Add parsing for Record Size Limit extension in TLS 1.3

Fixes #7007

Signed-off-by: Jan Bruckner <jan@janbruckner.de>

library/ssl_tls13_server.c

diff --git a/library/ssl_tls13_server.c b/library/ssl_tls13_server.c
index 6b1c4c5..de60a7a 100644
--- a/library/ssl_tls13_server.c
+++ b/library/ssl_tls13_server.c
@@ -1585,6 +1585,17 @@
                 break;
 #endif /* MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED */
 
+#if defined(MBEDTLS_SSL_RECORD_SIZE_LIMIT)
+            case MBEDTLS_TLS_EXT_RECORD_SIZE_LIMIT:
+                MBEDTLS_SSL_DEBUG_MSG(3, ("found record_size_limit extension"));
+
+                ret = mbedtls_ssl_tls13_parse_record_size_limit_ext(ssl, p, extension_data_end);
+
+                return ret;
+
+                break;
+#endif /* MBEDTLS_SSL_RECORD_SIZE_LIMIT */
+
             default:
                 MBEDTLS_SSL_PRINT_EXT(
                     3, MBEDTLS_SSL_HS_CLIENT_HELLO,