X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=src%2Fvnet%2Fsctp%2Fsctp_output.c;h=3c2099a08fdd041e031283141ee122abea2ad53f;hb=1cfcb78940580c8e3645fca0419d32f9286e942d;hp=8863012c0417bd4de4028a16f63a62c2c6f8d0c6;hpb=a5a458f3807f549c2519781c7a08d30cbfce0bf0;p=vpp.git

diff --git a/src/vnet/sctp/sctp_output.c b/src/vnet/sctp/sctp_output.c
index 8863012c041..3c2099a08fd 100644
--- a/src/vnet/sctp/sctp_output.c
+++ b/src/vnet/sctp/sctp_output.c
@@ -1334,11 +1334,14 @@ static void
 sctp_push_hdr_i (sctp_connection_t * sctp_conn, vlib_buffer_t * b,
 		 sctp_state_t next_state)
 {
-  u16 data_len =
-    b->current_length + b->total_length_not_including_first_buffer;
+  u16 data_len = b->current_length;
+
+  if (b->flags & VLIB_BUFFER_TOTAL_LENGTH_VALID)
+    data_len += b->total_length_not_including_first_buffer;
 
   ASSERT (!b->total_length_not_including_first_buffer
-	  || (b->flags & VLIB_BUFFER_NEXT_PRESENT));
+	  || (b->flags & VLIB_BUFFER_NEXT_PRESENT)
+	  || !(b->flags & VLIB_BUFFER_TOTAL_LENGTH_VALID));
 
   SCTP_ADV_DBG_OUTPUT ("b->current_length = %u, "
 		       "b->current_data = %p "