Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / net / 8021q / vlan_gvrp.c

diff --git a/kernel/net/8021q/vlan_gvrp.c b/kernel/net/8021q/vlan_gvrp.c
new file mode 100644 (file)
index 0000000..66a8032
--- /dev/null
+++ b/kernel/net/8021q/vlan_gvrp.c
@@ -0,0 +1,70 @@
+/*
+ *     IEEE 802.1Q GARP VLAN Registration Protocol (GVRP)
+ *
+ *     Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ *     This program is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License
+ *     version 2 as published by the Free Software Foundation.
+ */
+#include <linux/types.h>
+#include <linux/if_vlan.h>
+#include <net/garp.h>
+#include "vlan.h"
+
+#define GARP_GVRP_ADDRESS      { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x21 }
+
+enum gvrp_attributes {
+       GVRP_ATTR_INVALID,
+       GVRP_ATTR_VID,
+       __GVRP_ATTR_MAX
+};
+#define GVRP_ATTR_MAX  (__GVRP_ATTR_MAX - 1)
+
+static struct garp_application vlan_gvrp_app __read_mostly = {
+       .proto.group_address    = GARP_GVRP_ADDRESS,
+       .maxattr                = GVRP_ATTR_MAX,
+       .type                   = GARP_APPLICATION_GVRP,
+};
+
+int vlan_gvrp_request_join(const struct net_device *dev)
+{
+       const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
+       __be16 vlan_id = htons(vlan->vlan_id);
+
+       if (vlan->vlan_proto != htons(ETH_P_8021Q))
+               return 0;
+       return garp_request_join(vlan->real_dev, &vlan_gvrp_app,
+                                &vlan_id, sizeof(vlan_id), GVRP_ATTR_VID);
+}
+
+void vlan_gvrp_request_leave(const struct net_device *dev)
+{
+       const struct vlan_dev_priv *vlan = vlan_dev_priv(dev);
+       __be16 vlan_id = htons(vlan->vlan_id);
+
+       if (vlan->vlan_proto != htons(ETH_P_8021Q))
+               return;
+       garp_request_leave(vlan->real_dev, &vlan_gvrp_app,
+                          &vlan_id, sizeof(vlan_id), GVRP_ATTR_VID);
+}
+
+int vlan_gvrp_init_applicant(struct net_device *dev)
+{
+       return garp_init_applicant(dev, &vlan_gvrp_app);
+}
+
+void vlan_gvrp_uninit_applicant(struct net_device *dev)
+{
+       garp_uninit_applicant(dev, &vlan_gvrp_app);
+}
+
+int __init vlan_gvrp_init(void)
+{
+       return garp_register_application(&vlan_gvrp_app);
+}
+
+void vlan_gvrp_uninit(void)
+{
+       garp_unregister_application(&vlan_gvrp_app);
+}