Static: Allows to specify attributes for static routes

The patch adds suport for specifying route attributes together with
static routes, e.g.:

 route 10.1.1.0/24 via 10.0.0.1 { krt_advmss = 1200; ospf_metric1 = 100; };

2 files changed, 25 insertions, 0 deletions

diff --git a/filter/filter.c b/filter/filter.c
index 3f8968aa..55062aca 100644
--- a/filter/filter.c
+++ b/filter/filter.c
@@ -1527,6 +1527,30 @@ f_run(struct filter *filter, struct rte **rte, struct ea_list **tmp_attrs, struc
   return res.val.i;
 }
 
+/* TODO: perhaps we could integrate f_eval(), f_eval_rte() and f_run() */
+
+struct f_val
+f_eval_rte(struct f_inst *expr, struct rte **rte, struct linpool *tmp_pool)
+{
+  struct ea_list *tmp_attrs = NULL;
+
+  f_rte = rte;
+  f_old_rta = NULL;
+  f_tmp_attrs = &tmp_attrs;
+  f_pool = tmp_pool;
+  f_flags = 0;
+
+  LOG_BUFFER_INIT(f_buf);
+
+  /* Note that in this function we assume that rte->attrs is private / uncached */
+  struct f_val res = interpret(expr);
+
+  /* Hack to include EAF_TEMP attributes to the main list */
+  (*rte)->attrs->eattrs = ea_append(tmp_attrs, (*rte)->attrs->eattrs);
+
+  return res;
+}
+
 struct f_val
 f_eval(struct f_inst *expr, struct linpool *tmp_pool)
 {
diff --git a/filter/filter.h b/filter/filter.h
index 2b2d23c2..e59c8226 100644
--- a/filter/filter.h
+++ b/filter/filter.h
@@ -107,6 +107,7 @@ struct ea_list;
 struct rte;
 
 int f_run(struct filter *filter, struct rte **rte, struct ea_list **tmp_attrs, struct linpool *tmp_pool, int flags);
+struct f_val f_eval_rte(struct f_inst *expr, struct rte **rte, struct linpool *tmp_pool);
 struct f_val f_eval(struct f_inst *expr, struct linpool *tmp_pool);
 uint f_eval_int(struct f_inst *expr);
 u32 f_eval_asn(struct f_inst *expr);