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-rw-r--r--src/vnet/feature/feature.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/vnet/feature/feature.c b/src/vnet/feature/feature.c
index 2cdbcff88c8..f1afa3746f0 100644
--- a/src/vnet/feature/feature.c
+++ b/src/vnet/feature/feature.c
@@ -115,6 +115,7 @@ vnet_feature_init (vlib_main_t * vm)
clib_error_t *error;
vnet_feature_config_main_t *cm;
vnet_config_main_t *vcm;
+ char **features_in_order, *last_feature;
arc_index = areg->feature_arc_index;
cm = &fm->feature_config_mains[arc_index];
@@ -129,6 +130,19 @@ vnet_feature_init (vlib_main_t * vm)
os_exit (1);
}
+ features_in_order = fm->feature_nodes[arc_index];
+
+ /* If specificed, verify that the last node in the arc is actually last */
+ if (areg->last_in_arc && vec_len (features_in_order) > 0)
+ {
+ last_feature = features_in_order[vec_len (features_in_order) - 1];
+ if (strncmp (areg->last_in_arc, last_feature,
+ strlen (areg->last_in_arc)))
+ clib_warning
+ ("WARNING: %s arc: last node is %s, but expected %s!",
+ areg->arc_name, last_feature, areg->last_in_arc);
+ }
+
fm->next_feature_by_name[arc_index] =
hash_create_string (0, sizeof (uword));
freg = fm->next_feature_by_arc[arc_index];