zebra: new dplane action to set gre link interface

This action is initiated by nhrp and has been stubbed when
moving to zebra. Now, a netlink request is forged to set
the link interface of a gre interface if that gre interface
does not have already a link interface.

Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/zebra/zebra_dplane.h b/zebra/zebra_dplane.h
index 8d51d93cd4..5df58e6e99 100644
--- a/zebra/zebra_dplane.h
+++ b/zebra/zebra_dplane.h
@@ -171,6 +171,7 @@ enum dplane_op_e {
 	DPLANE_OP_NEIGH_IP_DELETE,
 
 	DPLANE_OP_NEIGH_TABLE_UPDATE,
+	DPLANE_OP_GRE_SET,
 };
 
 /*
@@ -527,6 +528,10 @@ dplane_ctx_neightable_get_mcast_probes(const struct zebra_dplane_ctx *ctx);
 uint32_t
 dplane_ctx_neightable_get_ucast_probes(const struct zebra_dplane_ctx *ctx);
 
+/* Accessor for GRE set */
+uint32_t
+dplane_ctx_gre_get_link_ifindex(const struct zebra_dplane_ctx *ctx);
+
 /* Namespace info - esp. for netlink communication */
 const struct zebra_dplane_info *dplane_ctx_get_ns(
 	const struct zebra_dplane_ctx *ctx);
@@ -695,6 +700,12 @@ enum zebra_dplane_result dplane_neigh_table_update(const struct interface *ifp,
 						   const uint32_t ucast_probes,
 						   const uint32_t mcast_probes);
 
+/*
+ * Enqueue a GRE set
+ */
+enum zebra_dplane_result
+dplane_gre_set(struct interface *ifp, struct interface *ifp_link);
+
 /* Forward ref of zebra_pbr_rule */
 struct zebra_pbr_rule;