Horizontal (nSessions) scaling draft

- Data structure preallocation.
- Input state machine fixes for mid-stream 3-way handshake retries.
- Batch connections in the builtin_client
- Multiple private fifo segment support
- Fix elog simultaneous event type registration
- Fix sacks when segment hole is added after highest sacked
- Add "accepting" session state for sessions pending accept
- Add ssvm non-recursive locking
- Estimate RTT for syn-ack
- Don't init fifo pointers. We're using relative offsets for ooo
  segments
- CLI to dump individual session

Change-Id: Ie0598563fd246537bafba4feed7985478ea1d415
Signed-off-by: Dave Barach <dbarach@cisco.com>
Signed-off-by: Florin Coras <fcoras@cisco.com>
diff --git a/src/vnet/session/transport.h b/src/vnet/session/transport.h
index 561a925..9c38bab 100644
--- a/src/vnet/session/transport.h
+++ b/src/vnet/session/transport.h
@@ -225,6 +225,12 @@
 		 t->rmt_port, t->proto);
 }
 
+typedef enum _transport_proto
+{
+  TRANSPORT_PROTO_TCP,
+  TRANSPORT_PROTO_UDP
+} transport_proto_t;
+
 typedef struct _transport_endpoint
 {
   ip46_address_t ip;	/** ip address */