iprule: rework interface based rules to handle dynamic interfaces

Previous netifd would only apply `ip rule`s while config phase.
If the iprule is depending on an interface (iif or oif), the rule
will fail if the interface is not up.

Allow iprules to track interfaces and their devices by using
the interface events.

Fixes: FS#1571
Acked-by: Hans Dedecker <dedeckeh@gmail.com>
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>

1 files changed, 9 insertions, 0 deletions

diff --git a/iprule.h b/iprule.h
index b723bdb..f05c3c9 100644
--- a/iprule.h
+++ b/iprule.h
@@ -74,6 +74,15 @@ struct iprule {
 
 	bool invert;
 
+	/* uci interface name */
+	char *in_iface;
+	char *out_iface;
+
+	/* to receive interface events */
+	struct interface_user in_iface_user;
+	struct interface_user out_iface_user;
+
+	/* device name */
 	char in_dev[IFNAMSIZ + 1];
 	char out_dev[IFNAMSIZ + 1];