commit 8216dd3f34cb1d48c88a6a15779b6727afc02425
author Ronald Cron <ronald.cron@arm.com> Thu Apr 23 16:41:44 2020 +0200
committer Ronald Cron <ronald.cron@arm.com> Fri May 29 15:10:30 2020 +0200
tree b2bcd3332317607edde199049aefd472f5e2716d
parent e131bfec29565946cf1354449cc75b0fbe87378e

Use defines to check alpn ext list validity

Signed-off-by: Ronald Cron <ronald.cron@arm.com>

library/ssl_tls.c

diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index ccfc4bd..57a6a5a 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -4652,7 +4652,9 @@
         cur_len = strlen( *p );
         tot_len += cur_len;
 
-        if( cur_len == 0 || cur_len > 255 || tot_len > 65535 )
+        if( ( cur_len == 0 ) ||
+            ( cur_len > MBEDTLS_SSL_MAX_ALPN_NAME_LEN ) ||
+            ( tot_len > MBEDTLS_SSL_MAX_ALPN_LIST_LEN ) )
             return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
     }