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-rwxr-xr-xsrc/vnet/srmpls/sr_mpls_policy.c21
1 files changed, 19 insertions, 2 deletions
diff --git a/src/vnet/srmpls/sr_mpls_policy.c b/src/vnet/srmpls/sr_mpls_policy.c
index 5bb7fb2bff5..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));
@@ -85,8 +86,24 @@ create_sl (mpls_sr_policy_t * sr_policy, mpls_label_t * sl, u32 weight)
.frp_local_label = sl[0],
};
- if (vec_len (sl) - 1)
- 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);