tcp: fix retransmissions under buffer shortage

[vpp.git] / src / vnet / tcp / tcp.h

diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h
index b057b88..1ddfac0 100644 (file)
--- a/src/vnet/tcp/tcp.h
+++ b/src/vnet/tcp/tcp.h
@@ -410,6 +410,9 @@ typedef struct _tcp_main
 
   u8 punt_unknown4;
   u8 punt_unknown6;
+
+  /** fault-injection */
+  f64 buffer_fail_fraction;
 } tcp_main_t;
 
 extern tcp_main_t tcp_main;
@@ -432,6 +435,15 @@ tcp_buffer_hdr (vlib_buffer_t * b)
                           + vnet_buffer (b)->tcp.hdr_offset);
 }
 
+#if (VLIB_BUFFER_TRACE_TRAJECTORY)
+#define tcp_trajectory_add_start(b, start)                     \
+{                                                              \
+    (*vlib_buffer_trace_trajectory_cb) (b, start);             \
+}
+#else
+#define tcp_trajectory_add_start(b, start)
+#endif
+
 clib_error_t *vnet_tcp_enable_disable (vlib_main_t * vm, u8 is_en);
 
 void tcp_punt_unknown (vlib_main_t * vm, u8 is_ip4, u8 is_add);