tcp: timestamp adjustment

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

diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h
index c83e7dc..a13a30d 100644 (file)
--- a/src/vnet/tcp/tcp.h
+++ b/src/vnet/tcp/tcp.h
@@ -377,6 +377,7 @@ typedef struct _tcp_connection
 
   u32 last_fib_check;  /**< Last time we checked fib route for peer */
   u16 mss;             /**< Our max seg size that includes options */
+  u32 timestamp_delta;
 } tcp_connection_t;
 
 /* *INDENT-OFF* */
@@ -928,6 +929,16 @@ tcp_time_now_w_thread (u32 thread_index)
   return tcp_main.wrk_ctx[thread_index].time_now;
 }
 
+/**
+ * Generate timestamp for tcp connection
+ */
+always_inline u32
+tcp_tstamp (tcp_connection_t * tc)
+{
+  return (tcp_main.wrk_ctx[tc->c_thread_index].time_now -
+         tc->timestamp_delta);
+}
+
 always_inline f64
 tcp_time_now_us (u32 thread_index)
 {