interface: don't store table id in route if the default table is used

Use system_is_default_rt_table() to test whether the resolved routing table
is the default one, in this case do not apply the table attribute to the
route object.

This is needed for backwards compatibility - only routes using a non-default
table shall report it in the ifstatus output.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/interface-ip.c b/interface-ip.c
index 715e498..587826a 100644
--- a/interface-ip.c
+++ b/interface-ip.c
@@ -365,6 +365,10 @@ interface_ip_add_route(struct interface *iface, struct blob_attr *attr, bool v6)
 			goto error;
 		}
 
+		/* only set the table flag if not using the main (default) table */
+		if (system_is_default_rt_table(route->table))
+			route->table = 0;
+
 		if (route->table)
 			route->flags |= DEVROUTE_TABLE;
 	}