session: cleanup part 1

Rename core data structures. This will break compatibility for out of
tree builtin apps.

- stream_session_t to session_t
- server_rx/tx_fifo to rx/tx_fifo
- stream_session.h to session_types.h
- update copyright

Change-Id: I414097c6e28bcbea866fbf13b8773c7db3f49325
Signed-off-by: Florin Coras <fcoras@cisco.com>
diff --git a/src/vnet/session-apps/http_server.c b/src/vnet/session-apps/http_server.c
index 719608a..25d8321 100644
--- a/src/vnet/session-apps/http_server.c
+++ b/src/vnet/session-apps/http_server.c
@@ -475,7 +475,7 @@
 }
 
 static int
-http_server_rx_callback (stream_session_t * s)
+http_server_rx_callback (session_t * s)
 {
   http_server_args *args;
   http_session_t *hs;
@@ -507,7 +507,7 @@
 }
 
 static int
-http_server_rx_callback_static (stream_session_t * s)
+http_server_rx_callback_static (session_t * s)
 {
   http_server_main_t *hsm = &http_server_main;
   vnet_disconnect_args_t _a = { 0 }, *a = &_a;
@@ -578,7 +578,7 @@
 }
 
 static int
-http_server_session_accept_callback (stream_session_t * s)
+http_server_session_accept_callback (session_t * s)
 {
   http_server_main_t *hsm = &http_server_main;
   http_session_t *hs;
@@ -592,8 +592,8 @@
   hs = http_server_session_alloc (s->thread_index);
   http_server_session_lookup_add (s->thread_index, s->session_index,
 				  hs->session_index);
-  hs->rx_fifo = s->server_rx_fifo;
-  hs->tx_fifo = s->server_tx_fifo;
+  hs->rx_fifo = s->rx_fifo;
+  hs->tx_fifo = s->tx_fifo;
   hs->vpp_session_index = s->session_index;
   hs->vpp_session_handle = session_handle (s);
   hs->session_state = HTTP_STATE_ESTABLISHED;
@@ -606,7 +606,7 @@
 }
 
 static void
-http_server_session_disconnect_callback (stream_session_t * s)
+http_server_session_disconnect_callback (session_t * s)
 {
   http_server_main_t *hsm = &http_server_main;
   vnet_disconnect_args_t _a = { 0 }, *a = &_a;
@@ -627,7 +627,7 @@
 }
 
 static void
-http_server_session_reset_callback (stream_session_t * s)
+http_server_session_reset_callback (session_t * s)
 {
   http_server_main_t *hsm = &http_server_main;
   vnet_disconnect_args_t _a = { 0 }, *a = &_a;
@@ -649,7 +649,7 @@
 
 static int
 http_server_session_connected_callback (u32 app_index, u32 api_context,
-					stream_session_t * s, u8 is_fail)
+					session_t * s, u8 is_fail)
 {
   clib_warning ("called...");
   return -1;