X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=src%2Fvnet%2Ftcp%2Ftcp.c;h=285ed624d568aa92bab4a3237750643425a2d402;hb=8124cb784050275372e05a97b1e62f9f1ba5a091;hp=04613cd6943401e57ad665b2e1712427ec927310;hpb=178cf493d009995b28fdf220f04c98860ff79a9b;p=vpp.git

diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c
index 04613cd6943..285ed624d56 100644
--- a/src/vnet/tcp/tcp.c
+++ b/src/vnet/tcp/tcp.c
@@ -246,7 +246,7 @@ tcp_connection_del (tcp_connection_t * tc)
 }
 
 tcp_connection_t *
-tcp_connection_new (u8 thread_index)
+tcp_connection_alloc (u8 thread_index)
 {
   tcp_main_t *tm = vnet_get_tcp_main ();
   tcp_connection_t *tc;
@@ -258,6 +258,15 @@ tcp_connection_new (u8 thread_index)
   return tc;
 }
 
+void
+tcp_connection_free (tcp_connection_t * tc)
+{
+  tcp_main_t *tm = &tcp_main;
+  pool_put (tm->connections[tc->c_thread_index], tc);
+  if (CLIB_DEBUG > 0)
+    clib_memset (tc, 0xFA, sizeof (*tc));
+}
+
 /** Notify session that connection has been reset.
  *
  * Switch state to closed and wait for session to call cleanup.
@@ -296,6 +305,7 @@ tcp_connection_reset (tcp_connection_t * tc)
     case TCP_STATE_CLOSED:
       return;
     }
+  tc->state = TCP_STATE_CLOSED;
 }
 
 /**
@@ -349,16 +359,21 @@ tcp_connection_close (tcp_connection_t * tc)
     case TCP_STATE_FIN_WAIT_1:
       tcp_timer_update (tc, TCP_TIMER_WAITCLOSE, TCP_2MSL_TIME);
       break;
+    case TCP_STATE_CLOSED:
+      tcp_connection_timers_reset (tc);
+      break;
     default:
       TCP_DBG ("state: %u", tc->state);
     }
 
   TCP_EVT_DBG (TCP_EVT_STATE_CHANGE, tc);
 
-  /* If in CLOSED and WAITCLOSE timer is not set, delete connection now */
+  /* If in CLOSED and WAITCLOSE timer is not set, delete connection.
+   * But instead of doing it now wait until next dispatch cycle to give
+   * the session layer a chance to clear unhandled events */
   if (!tcp_timer_is_active (tc, TCP_TIMER_WAITCLOSE)
       && tc->state == TCP_STATE_CLOSED)
-    tcp_connection_del (tc);
+    tcp_timer_update (tc, TCP_TIMER_WAITCLOSE, 1);
 }
 
 static void
@@ -553,6 +568,7 @@ tcp_init_snd_vars (tcp_connection_t * tc)
   tc->snd_una = tc->iss;
   tc->snd_nxt = tc->iss + 1;
   tc->snd_una_max = tc->snd_nxt;
+  tc->srtt = 0;
 }
 
 void
@@ -1052,7 +1068,8 @@ tcp_snd_space_inline (tcp_connection_t * tc)
 {
   int snd_space, snt_limited;
 
-  if (PREDICT_FALSE (tcp_in_fastrecovery (tc)))
+  if (PREDICT_FALSE (tcp_in_fastrecovery (tc)
+		     || tc->state == TCP_STATE_CLOSED))
     return 0;
 
   snd_space = tcp_available_output_snd_space (tc);
@@ -1117,6 +1134,16 @@ tcp_session_push_header (transport_connection_t * tconn, vlib_buffer_t * b)
   return tcp_push_header (tc, b);
 }
 
+static void
+tcp_session_flush_data (transport_connection_t * tconn)
+{
+  tcp_connection_t *tc = (tcp_connection_t *) tconn;
+  if (tc->flags & TCP_CONN_PSH_PENDING)
+    return;
+  tc->flags |= TCP_CONN_PSH_PENDING;
+  tc->psh_seq = tc->snd_una_max + transport_max_tx_dequeue (tconn) - 1;
+}
+
 /* *INDENT-OFF* */
 const static transport_proto_vft_t tcp_proto = {
   .enable = vnet_tcp_enable_disable,
@@ -1133,6 +1160,7 @@ const static transport_proto_vft_t tcp_proto = {
   .send_space = tcp_session_send_space,
   .update_time = tcp_update_time,
   .tx_fifo_offset = tcp_session_tx_fifo_offset,
+  .flush_data = tcp_session_flush_data,
   .format_connection = format_tcp_session,
   .format_listener = format_tcp_listener_session,
   .format_half_open = format_tcp_half_open_session,