session: first approximation implementation of tls

It consists of two main parts. First, add an application transport type
whereby applications can offer transport to other applications. For
instance, a tls app can offer transport services to other applications.
And second, a tls transport app that leverages the mbedtls library for
tls protocol implementation.

Change-Id: I616996c6e6539a9e2368fab8a1ac874d7c5d9838
Signed-off-by: Florin Coras <fcoras@cisco.com>

2 files changed, 3 insertions, 1 deletions

diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c
index 8d222e3c684..6de48b2bd3a 100644
--- a/src/vnet/tcp/tcp.c
+++ b/src/vnet/tcp/tcp.c
@@ -1037,6 +1037,8 @@ const static transport_proto_vft_t tcp_proto = {
   .format_connection = format_tcp_session,
   .format_listener = format_tcp_listener_session,
   .format_half_open = format_tcp_half_open_session,
+  .tx_type = TRANSPORT_TX_PEEK,
+  .service_type = TRANSPORT_SERVICE_VC,
 };
 /* *INDENT-ON* */
 
diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c
index ec8a251e6eb..bbcbc912175 100644
--- a/src/vnet/tcp/tcp_output.c
+++ b/src/vnet/tcp/tcp_output.c
@@ -389,7 +389,7 @@ tcp_make_options (tcp_connection_t * tc, tcp_options_t * opts,
     case TCP_STATE_SYN_SENT:
       return tcp_make_syn_options (opts, tc->rcv_wscale);
     default:
-      clib_warning ("Not handled!");
+      clib_warning ("State not handled! %d", state);
       return 0;
     }
 }