commit 48f8d0dbbd6d86aa16d0df785da163d9fde0a2e5
author Manuel Pégourié-Gonnard <mpg@elzevir.fr> Wed Jul 17 10:25:37 2013 +0200
committer Manuel Pégourié-Gonnard <mpg@elzevir.fr> Thu Jul 18 11:18:14 2013 +0200
tree 5a6f2c09e3c44fa42354e278bf666dd45e7aba26
parent 787b658bb34200860d224ae7f301dac2917a19c7

Read max_fragment_length extension (server)

library/ssl_srv.c

diff --git a/library/ssl_srv.c b/library/ssl_srv.c
index 2aef9c4..0e32251 100644
--- a/library/ssl_srv.c
+++ b/library/ssl_srv.c
@@ -291,6 +291,22 @@
 }
 #endif /* POLARSSL_ECP_C */
 
+static int ssl_parse_max_fragment_length_ext( ssl_context *ssl,
+                                              const unsigned char *buf,
+                                              size_t len )
+{
+    int ret;
+
+    if( len != 1 ||
+        ( ret = ssl_set_max_frag_len( ssl, buf[0] ) ) != 0 )
+    {
+        SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
+        return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO );
+    }
+
+    return( 0 );
+}
+
 #if defined(POLARSSL_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO)
 static int ssl_parse_client_hello_v2( ssl_context *ssl )
 {
@@ -825,6 +841,14 @@
             break;
 #endif /* POLARSSL_ECP_C */
 
+        case TLS_EXT_MAX_FRAGMENT_LENGTH:
+            SSL_DEBUG_MSG( 3, ( "found max fragment length extension" ) );
+
+            ret = ssl_parse_max_fragment_length_ext( ssl, ext + 4, ext_size );
+            if( ret != 0 )
+                return( ret );
+            break;
+
         default:
             SSL_DEBUG_MSG( 3, ( "unknown extension found: %d (ignoring)",
                            ext_id ) );