parse tunnel devices from config

[project/netifd.git] / tunnel.c

diff --git a/tunnel.c b/tunnel.c
new file mode 100644 (file)
index 0000000..e756973
--- /dev/null
+++ b/tunnel.c
@@ -0,0 +1,66 @@
+#include "netifd.h"
+#include "device.h"
+#include "config.h"
+#include "system.h"
+
+struct tunnel {
+       struct device dev;
+       device_state_cb set_state;
+       struct blob_attr *config;
+};
+
+static int
+tunnel_set_state(struct device *dev, bool up)
+{
+       struct tunnel *tun = container_of(dev, struct tunnel, dev);
+       int ret;
+
+       if (up) {
+               ret = system_add_ip_tunnel(dev->ifname, tun->config);
+               if (ret != 0) {
+                       perror("add_ip_tunnel");
+                       return ret;
+               }
+       }
+
+       ret = tun->set_state(dev, up);
+       if (ret || !up)
+               system_del_ip_tunnel(dev->ifname);
+
+       return ret;
+}
+
+static struct device *
+tunnel_create(const char *name, struct blob_attr *attr)
+{
+       struct tunnel *tun;
+       struct device *dev;
+
+       tun = calloc(1, sizeof(*tun));
+       dev = &tun->dev;
+       tun->config = config_memdup(attr);
+       device_init(dev, &tunnel_device_type, name);
+       tun->set_state = dev->set_state;
+       dev->set_state = tunnel_set_state;
+       device_set_present(dev, true);
+
+       return dev;
+}
+
+static void
+tunnel_free(struct device *dev)
+{
+       struct tunnel *tun = container_of(dev, struct tunnel, dev);
+
+       free(tun);
+}
+
+const struct device_type tunnel_device_type = {
+       .name = "IP tunnel",
+       .config_params = &tunnel_attr_list,
+
+       .create = tunnel_create,
+       .free = tunnel_free,
+};
+
+