From c24b290c8fe549cd5be941445f918e83c8efa966 Mon Sep 17 00:00:00 2001
From: Thomas Graf <tgraf@suug.ch>
Date: Fri, 31 Jul 2015 13:48:03 +0200
Subject: [PATCH] Support for IFLA_VXLAN_GBP flag

Signed-off-by: Thomas Graf <tgraf@suug.ch>
---
 link.go          |  1 +
 link_linux.go    |  6 ++++++
 link_test.go     |  3 +++
 nl/link_linux.go | 10 +++++++++-
 4 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/link.go b/link.go
index af51e3f..30167cd 100644
--- a/link.go
+++ b/link.go
@@ -157,6 +157,7 @@ type Vxlan struct {
 	L2miss       bool
 	L3miss       bool
 	NoAge        bool
+	GBP          bool
 	Age          int
 	Limit        int
 	Port         int
diff --git a/link_linux.go b/link_linux.go
index 2b800d1..cd95007 100644
--- a/link_linux.go
+++ b/link_linux.go
@@ -266,6 +266,10 @@ func addVxlanAttrs(vxlan *Vxlan, linkInfo *nl.RtAttr) {
 	nl.NewRtAttrChild(data, nl.IFLA_VXLAN_L2MISS, boolAttr(vxlan.L2miss))
 	nl.NewRtAttrChild(data, nl.IFLA_VXLAN_L3MISS, boolAttr(vxlan.L3miss))
 
+	if vxlan.GBP {
+		nl.NewRtAttrChild(data, nl.IFLA_VXLAN_GBP, boolAttr(vxlan.GBP))
+	}
+
 	if vxlan.NoAge {
 		nl.NewRtAttrChild(data, nl.IFLA_VXLAN_AGEING, nl.Uint32Attr(0))
 	} else if vxlan.Age > 0 {
@@ -683,6 +687,8 @@ func parseVxlanData(link Link, data []syscall.NetlinkRouteAttr) {
 			vxlan.L2miss = int8(datum.Value[0]) != 0
 		case nl.IFLA_VXLAN_L3MISS:
 			vxlan.L3miss = int8(datum.Value[0]) != 0
+		case nl.IFLA_VXLAN_GBP:
+			vxlan.GBP = int8(datum.Value[0]) != 0
 		case nl.IFLA_VXLAN_AGEING:
 			vxlan.Age = int(native.Uint32(datum.Value[0:4]))
 			vxlan.NoAge = vxlan.Age == 0
diff --git a/link_test.go b/link_test.go
index 2edfcbe..9e44f0d 100644
--- a/link_test.go
+++ b/link_test.go
@@ -150,6 +150,9 @@ func compareVxlan(t *testing.T, expected, actual *Vxlan) {
 	if actual.L3miss != expected.L3miss {
 		t.Fatal("Vxlan.L3miss doesn't match")
 	}
+	if actual.GBP != expected.GBP {
+		t.Fatal("Vxlan.GBP doesn't match")
+	}
 	if expected.NoAge {
 		if !actual.NoAge {
 			t.Fatal("Vxlan.NoAge doesn't match")
diff --git a/nl/link_linux.go b/nl/link_linux.go
index 64ef5fd..1f9ab08 100644
--- a/nl/link_linux.go
+++ b/nl/link_linux.go
@@ -47,7 +47,15 @@ const (
 	IFLA_VXLAN_PORT
 	IFLA_VXLAN_GROUP6
 	IFLA_VXLAN_LOCAL6
-	IFLA_VXLAN_MAX = IFLA_VXLAN_LOCAL6
+	IFLA_VXLAN_UDP_CSUM
+	IFLA_VXLAN_UDP_ZERO_CSUM6_TX
+	IFLA_VXLAN_UDP_ZERO_CSUM6_RX
+	IFLA_VXLAN_REMCSUM_TX
+	IFLA_VXLAN_REMCSUM_RX
+	IFLA_VXLAN_GBP
+	IFLA_VXLAN_REMCSUM_NOPARTIAL
+	IFLA_VXLAN_FLOWBASED
+	IFLA_VXLAN_MAX = IFLA_VXLAN_FLOWBASED
 )
 
 const (