mirror of
https://github.com/tim-beatham/smegmesh.git
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41-bugfix-fluctuating-ips
Fluctuating ips creating hub and spoke.
This commit is contained in:
parent
245a2c5f58
commit
1b18d89c9f
@ -155,68 +155,70 @@ func (m *WgMeshConfigApplyer) getRoutes(meshProvider MeshProvider) map[string][]
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return routes
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}
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func (m *WgMeshConfigApplyer) updateWgConf(mesh MeshProvider) error {
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snap, err := mesh.GetMesh()
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if err != nil {
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return err
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// getCorrespondignPeer: gets the peer corresponding to the client
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func (m *WgMeshConfigApplyer) getCorrespondingPeer(peers []MeshNode, client MeshNode) MeshNode {
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hashFunc := func(mn MeshNode) int {
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pubKey, _ := mn.GetPublicKey()
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return lib.HashString(pubKey.String())
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}
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nodes := lib.MapValues(snap.GetNodes())
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slices.SortFunc(nodes, func(a, b MeshNode) int {
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return strings.Compare(string(a.GetType()), string(b.GetType()))
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})
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peerConfigs := make([]wgtypes.PeerConfig, len(nodes))
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peers := lib.Filter(nodes, func(mn MeshNode) bool {
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return mn.GetType() == conf.PEER_ROLE
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})
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clients := lib.Filter(nodes, func(mn MeshNode) bool {
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return mn.GetType() == conf.CLIENT_ROLE
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})
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var count int = 0
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peer := lib.ConsistentHash(peers, client, hashFunc, hashFunc)
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return peer
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}
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func (m *WgMeshConfigApplyer) getClientConfig(mesh MeshProvider, peers []MeshNode, clients []MeshNode) (*wgtypes.Config, error) {
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self, err := m.meshManager.GetSelf(mesh.GetMeshId())
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if err != nil {
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return err
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return nil, err
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}
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peer := m.getCorrespondingPeer(peers, self)
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pubKey, _ := peer.GetPublicKey()
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keepAlive := time.Duration(m.config.KeepAliveWg) * time.Second
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endpoint, err := net.ResolveUDPAddr("udp", peer.GetWgEndpoint())
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if err != nil {
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return nil, err
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}
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allowedips := make([]net.IPNet, 1)
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_, ipnet, _ := net.ParseCIDR("::/0")
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allowedips[0] = *ipnet
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peerCfgs := make([]wgtypes.PeerConfig, 1)
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peerCfgs[0] = wgtypes.PeerConfig{
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PublicKey: pubKey,
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Endpoint: endpoint,
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PersistentKeepaliveInterval: &keepAlive,
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AllowedIPs: allowedips,
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}
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cfg := wgtypes.Config{
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Peers: peerCfgs,
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}
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return &cfg, err
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}
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func (m *WgMeshConfigApplyer) getPeerConfig(mesh MeshProvider, peers []MeshNode, clients []MeshNode, dev *wgtypes.Device) (*wgtypes.Config, error) {
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peerToClients := make(map[string][]net.IPNet)
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routes := m.getRoutes(mesh)
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installedRoutes := make([]lib.Route, 0)
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peerConfigs := make([]wgtypes.PeerConfig, 0)
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self, err := m.meshManager.GetSelf(mesh.GetMeshId())
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dev, _ := mesh.GetDevice()
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if err != nil {
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return nil, err
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}
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for _, n := range clients {
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if NodeEquals(n, self) {
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continue
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}
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if self.GetType() == conf.PEER_ROLE {
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client, err := m.convertMeshNode(n, dev, peerToClients, routes)
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if err != nil {
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return err
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}
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peerConfigs[count] = *client
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count++
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} else if len(peers) > 0 && self.GetType() == conf.CLIENT_ROLE {
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hashFunc := func(mn MeshNode) int {
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pubKey, _ := mn.GetPublicKey()
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return lib.HashString(pubKey.String())
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}
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peer := lib.ConsistentHash(peers, n, hashFunc, hashFunc)
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if len(peers) > 0 {
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peer := m.getCorrespondingPeer(peers, n)
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pubKey, _ := peer.GetPublicKey()
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clients, ok := peerToClients[pubKey.String()]
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if !ok {
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@ -225,6 +227,16 @@ func (m *WgMeshConfigApplyer) updateWgConf(mesh MeshProvider) error {
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}
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peerToClients[pubKey.String()] = append(clients, *n.GetWgHost())
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if NodeEquals(self, peer) {
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cfg, err := m.convertMeshNode(n, dev, peerToClients, routes)
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if err != nil {
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return nil, err
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}
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peerConfigs = append(peerConfigs, *cfg)
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}
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}
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}
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@ -236,7 +248,7 @@ func (m *WgMeshConfigApplyer) updateWgConf(mesh MeshProvider) error {
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peer, err := m.convertMeshNode(n, dev, peerToClients, routes)
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if err != nil {
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return err
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return nil, err
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}
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for _, route := range peer.AllowedIPs {
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@ -251,21 +263,66 @@ func (m *WgMeshConfigApplyer) updateWgConf(mesh MeshProvider) error {
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}
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}
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peerConfigs[count] = *peer
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count++
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peerConfigs = append(peerConfigs, *peer)
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}
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cfg := wgtypes.Config{
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Peers: peerConfigs,
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Peers: peerConfigs,
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ReplacePeers: true,
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}
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err = m.meshManager.GetClient().ConfigureDevice(dev.Name, cfg)
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err = m.routeInstaller.InstallRoutes(dev.Name, installedRoutes...)
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return &cfg, err
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}
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func (m *WgMeshConfigApplyer) updateWgConf(mesh MeshProvider) error {
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snap, err := mesh.GetMesh()
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if err != nil {
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return err
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}
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return m.routeInstaller.InstallRoutes(dev.Name, installedRoutes...)
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nodes := lib.MapValues(snap.GetNodes())
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dev, _ := mesh.GetDevice()
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slices.SortFunc(nodes, func(a, b MeshNode) int {
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return strings.Compare(string(a.GetType()), string(b.GetType()))
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})
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peers := lib.Filter(nodes, func(mn MeshNode) bool {
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return mn.GetType() == conf.PEER_ROLE
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})
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clients := lib.Filter(nodes, func(mn MeshNode) bool {
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return mn.GetType() == conf.CLIENT_ROLE
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})
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self, err := m.meshManager.GetSelf(mesh.GetMeshId())
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if err != nil {
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return err
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}
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var cfg *wgtypes.Config = nil
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switch self.GetType() {
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case conf.PEER_ROLE:
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cfg, err = m.getPeerConfig(mesh, peers, clients, dev)
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case conf.CLIENT_ROLE:
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cfg, err = m.getClientConfig(mesh, peers, clients)
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}
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if err != nil {
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return err
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}
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err = m.meshManager.GetClient().ConfigureDevice(dev.Name, *cfg)
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if err != nil {
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return err
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}
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return nil
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}
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func (m *WgMeshConfigApplyer) ApplyConfig() error {
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@ -294,7 +351,8 @@ func (m *WgMeshConfigApplyer) RemovePeers(meshId string) error {
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}
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m.meshManager.GetClient().ConfigureDevice(dev.Name, wgtypes.Config{
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Peers: make([]wgtypes.PeerConfig, 0),
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Peers: make([]wgtypes.PeerConfig, 0),
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ReplacePeers: true,
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})
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return nil
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