update netlink dependencies

Signed-off-by: Antonio Ojea <aojea@redhat.com>

vendor/github.com/vishvananda/netlink/nl/parse_attr.go

@@ -0,0 +1,67 @@
+package nl
+
+import (
+	"encoding/binary"
+	"fmt"
+)
+
+type Attribute struct {
+	Type  uint16
+	Value []byte
+}
+
+func ParseAttributes(data []byte) <-chan Attribute {
+	native := NativeEndian()
+	result := make(chan Attribute)
+
+	go func() {
+		i := 0
+		for i+4 < len(data) {
+			length := int(native.Uint16(data[i : i+2]))
+
+			result <- Attribute{
+				Type:  native.Uint16(data[i+2 : i+4]),
+				Value: data[i+4 : i+length],
+			}
+			i += rtaAlignOf(length)
+		}
+		close(result)
+	}()
+
+	return result
+}
+
+func PrintAttributes(data []byte) {
+	printAttributes(data, 0)
+}
+
+func printAttributes(data []byte, level int) {
+	for attr := range ParseAttributes(data) {
+		for i := 0; i < level; i++ {
+			print("> ")
+		}
+		nested := attr.Type&NLA_F_NESTED != 0
+		fmt.Printf("type=%d nested=%v len=%v %v\n", attr.Type&NLA_TYPE_MASK, nested, len(attr.Value), attr.Value)
+		if nested {
+			printAttributes(attr.Value, level+1)
+		}
+	}
+}
+
+// Uint32 returns the uint32 value respecting the NET_BYTEORDER flag
+func (attr *Attribute) Uint32() uint32 {
+	if attr.Type&NLA_F_NET_BYTEORDER != 0 {
+		return binary.BigEndian.Uint32(attr.Value)
+	} else {
+		return NativeEndian().Uint32(attr.Value)
+	}
+}
+
+// Uint64 returns the uint64 value respecting the NET_BYTEORDER flag
+func (attr *Attribute) Uint64() uint64 {
+	if attr.Type&NLA_F_NET_BYTEORDER != 0 {
+		return binary.BigEndian.Uint64(attr.Value)
+	} else {
+		return NativeEndian().Uint64(attr.Value)
+	}
+}