X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fsrmpls%2Fsr_mpls_policy.c;h=86cd169716a2a8504fdf7acaf327d7d66a0e5d66;hb=7c922dc404c2c0a2d67d53ca05db1c1ae1598f44;hp=7d336c17594a6044914c4c239ad6c8e1454ac9d7;hpb=30684ac044bbb8e11ef100a24c01eb37ba7a8876;p=vpp.git

diff --git a/src/vnet/srmpls/sr_mpls_policy.c b/src/vnet/srmpls/sr_mpls_policy.c
index 7d336c17594..86cd169716a 100755
--- a/src/vnet/srmpls/sr_mpls_policy.c
+++ b/src/vnet/srmpls/sr_mpls_policy.c
@@ -61,6 +61,7 @@ create_sl (mpls_sr_policy_t * sr_policy, mpls_label_t * sl, u32 weight)
 {
   mpls_sr_main_t *sm = &sr_mpls_main;
   mpls_sr_sl_t *segment_list;
+  u32 ii;
 
   pool_get (sm->sid_lists, segment_list);
   memset (segment_list, 0, sizeof (*segment_list));
@@ -85,20 +86,37 @@ create_sl (mpls_sr_policy_t * sr_policy, mpls_label_t * sl, u32 weight)
       .frp_local_label = sl[0],
     };
 
-    vec_add (path.frp_label_stack, sl + 1, vec_len (sl) - 1);
+    if (vec_len (sl) > 1)
+      {
+	vec_validate (path.frp_label_stack, vec_len (sl) - 2);
+	for (ii = 1; ii < vec_len (sl); ii++)
+	  {
+	    path.frp_label_stack[ii - 1].fml_value = sl[ii];
+	  }
+      }
+    else
+      {
+	/*
+	 * add an impliciet NULL label to allow non-eos recursion
+	 */
+	fib_mpls_label_t lbl = {
+	  .fml_value = MPLS_IETF_IMPLICIT_NULL_LABEL,
+	};
+	vec_add1 (path.frp_label_stack, lbl);
+      }
 
     fib_route_path_t *paths = NULL;
     vec_add1 (paths, path);
 
-		/* *INDENT-OFF* */
-		fib_prefix_t	pfx = {
-			.fp_len = 21,
-			.fp_proto = FIB_PROTOCOL_MPLS,
-			.fp_label = sr_policy->bsid,
-			.fp_eos = eos,
-			.fp_payload_proto = DPO_PROTO_MPLS,
-		};
-		/* *INDENT-ON* */
+    /* *INDENT-OFF* */
+    fib_prefix_t pfx = {
+        .fp_len = 21,
+        .fp_proto = FIB_PROTOCOL_MPLS,
+        .fp_label = sr_policy->bsid,
+        .fp_eos = eos,
+        .fp_payload_proto = DPO_PROTO_MPLS,
+    };
+    /* *INDENT-ON* */
 
     fib_table_entry_path_add2 (0,
 			       &pfx,