36-add-route-path-into-route-object

Added the route path into the route object so that we can
see what meshes packets are routed across.

pkg/mesh/route.go

@@ -1,13 +1,9 @@
 package mesh
 
 import (
-	"fmt"
-	"net"
-
 	"github.com/tim-beatham/wgmesh/pkg/ip"
 	"github.com/tim-beatham/wgmesh/pkg/lib"
 	logging "github.com/tim-beatham/wgmesh/pkg/log"
-	"golang.org/x/sys/unix"
 )
 
 type RouteManager interface {
@@ -57,6 +53,7 @@ func (r *RouteManagerImpl) UpdateRoutes() error {
 			err = mesh2.AddRoutes(NodeID(self), append(lib.MapValues(routes), &RouteStub{
 				Destination: ipNet,
 				HopCount:    0,
+				Path:        make([]string, 0),
 			})...)
 
 			if err != nil {
@@ -91,110 +88,6 @@ func (r *RouteManagerImpl) RemoveRoutes(meshId string) error {
 	return nil
 }
 
-// AddRoute adds a route to the given interface
-func (m *RouteManagerImpl) addRoute(ifName string, meshPrefix string, routes ...lib.Route) error {
-	rtnl, err := lib.NewRtNetlinkConfig()
-
-	if err != nil {
-		return fmt.Errorf("failed to create config: %w", err)
-	}
-	defer rtnl.Close()
-
-	// Delete any routes that may be vacant
-	err = rtnl.DeleteRoutes(ifName, unix.AF_INET6, routes...)
-
-	if err != nil {
-		return err
-	}
-
-	for _, route := range routes {
-		if route.Destination.String() == meshPrefix {
-			continue
-		}
-
-		err = rtnl.AddRoute(ifName, route)
-
-		if err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-func (m *RouteManagerImpl) installRoute(ifName string, meshid string, node MeshNode) error {
-	routeMapFunc := func(route string) lib.Route {
-		_, cidr, _ := net.ParseCIDR(route)
-
-		r := lib.Route{
-			Destination: *cidr,
-			Gateway:     node.GetWgHost().IP,
-		}
-		return r
-	}
-
-	ipBuilder := &ip.ULABuilder{}
-	ipNet, err := ipBuilder.GetIPNet(meshid)
-
-	if err != nil {
-		return err
-	}
-
-	theRoutes := lib.Map(node.GetRoutes(), func(r Route) string {
-		return r.GetDestination().String()
-	})
-
-	routes := lib.Map(append(theRoutes, ipNet.String()), routeMapFunc)
-	return m.addRoute(ifName, ipNet.String(), routes...)
-}
-
-func (m *RouteManagerImpl) installRoutes(meshProvider MeshProvider) error {
-	mesh, err := meshProvider.GetMesh()
-
-	if err != nil {
-		return err
-	}
-
-	dev, err := meshProvider.GetDevice()
-
-	if err != nil {
-		return err
-	}
-
-	self, err := m.meshManager.GetSelf(meshProvider.GetMeshId())
-
-	if err != nil {
-		return err
-	}
-
-	for _, node := range mesh.GetNodes() {
-		if NodeEquals(self, node) {
-			continue
-		}
-
-		err = m.installRoute(dev.Name, meshProvider.GetMeshId(), node)
-
-		if err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-// InstallRoutes installs all routes to the RIB
-func (r *RouteManagerImpl) InstallRoutes() error {
-	for _, mesh := range r.meshManager.GetMeshes() {
-		err := r.installRoutes(mesh)
-
-		if err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
 func NewRouteManager(m MeshManager) RouteManager {
 	return &RouteManagerImpl{meshManager: m}
 }