// This code proposed for addition to the vishvananda/netlink library
// deserializeRoute decodes a binary netlink message into a Route struct
func deserializeRoute(m []byte) (netlink.Route, error) {
route := netlink.Route{}
msg := nl.DeserializeRtMsg(m)
attrs, err := nl.ParseRouteAttr(m[msg.Len():])
if err != nil {
return route, err
}
route.Scope = netlink.Scope(msg.Scope)
native := nl.NativeEndian()
for _, attr := range attrs {
switch attr.Attr.Type {
case syscall.RTA_GATEWAY:
route.Gw = net.IP(attr.Value)
case syscall.RTA_PREFSRC:
route.Src = net.IP(attr.Value)
case syscall.RTA_DST:
route.Dst = &net.IPNet{
IP: attr.Value,
Mask: net.CIDRMask(int(msg.Dst_len), 8*len(attr.Value)),
}
case syscall.RTA_OIF:
routeIndex := int(native.Uint32(attr.Value[0:4]))
route.LinkIndex = routeIndex
}
}
return route, nil
}
