llmnrd: Join IP multicast group on each new interface

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

1 files changed, 10 insertions, 2 deletions

diff --git a/iface.h b/iface.h
index 952b58e..cdcf716 100644
--- a/iface.h
+++ b/iface.h
@@ -21,10 +21,18 @@
 
 #include <sys/socket.h>
 
-size_t iface_addr_lookup(unsigned int ifindex, unsigned char family, 
-			 struct sockaddr_storage *addrs, size_t addrs_size);
+enum iface_event_type {
+	IFACE_ADD,
+	IFACE_DEL,
+};
+
+typedef void (*iface_event_handler_t)(enum iface_event_type, int af, unsigned int ifindex);
 
+void iface_register_event_handler(iface_event_handler_t event_handler);
 int iface_start_thread(void);
 void iface_stop(void);
 
+size_t iface_addr_lookup(unsigned int ifindex, unsigned char family,
+			 struct sockaddr_storage *addrs, size_t addrs_size);
+
 #endif /* IFACE_H */